/* 🚀 Modern GitHub-inspired Design System */
:root {
  /* GitHub Dark Theme Base */
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #21262d;
  --bg-hover: #30363d;
  --border: #30363d;
  --border-muted: #21262d;
  /* Glass defaults for dark theme */
  --glass-bg: rgba(22, 27, 34, 0.92);
  --glass-bg-hover: rgba(33, 38, 45, 0.96);
  --glass-border: rgba(110, 118, 129, 0.35);
  
  /* Modern Text Colors */
  --text-primary: #f0f6fc;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;
  
  /* Vibrant Accent Colors */
  --accent: #238636;
  --accent-hover: #2ea043;
  --accent-light: rgba(35, 134, 54, 0.1);
  --accent-bright: #3fb950;
  
  /* Status Colors */
  --danger: #f85149;
  --danger-hover: #ff6166;
  --warning: #d29922;
  --warning-hover: #e2a822;
  --info: #58a6ff;
  --info-hover: #79c0ff;
  
  /* Modern Shadows & Effects */
  --shadow-sm: rgba(0, 0, 0, 0.12) 0px 1px 3px, rgba(0, 0, 0, 0.24) 0px 1px 2px;
  --shadow-md: rgba(0, 0, 0, 0.16) 0px 3px 6px, rgba(0, 0, 0, 0.23) 0px 3px 6px;
  --shadow-lg: rgba(0, 0, 0, 0.19) 0px 10px 20px, rgba(0, 0, 0, 0.23) 0px 6px 6px;
  --shadow-glow: 0 0 20px rgba(35, 134, 54, 0.3);
  
  /* Smooth Transitions */
  --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Modern Border Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
}

/* Smooth Scrolling & Modern Base */
* { 
  margin: 0; 
  padding: 0; 
  box-sizing: border-box; 
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  /* removed -moz-osx-font-smoothing to avoid warnings; modern Firefox handles font smoothing */
}

/* Emoji-only markers with subtle pulsing glow (no shapes) */
.dot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  width: 1.1em;
  height: 1.1em;
  margin-right: 6px;
  background: transparent;
  animation: emojiPulse 2.2s ease-in-out infinite;
  transform-origin: center;
  /* Align emoji to the text baseline nicely */
  vertical-align: middle;
}
/* centered emoji */
.dot::before {
  content: '';
  font-size: 0.95em;
  line-height: 1;
  display: inline-block;
  transform: translateY(0.06em); /* optical tweak so emoji and text sit on one height */
}
/* variants are used only for emoji mapping now (no background shapes) */
.dot-info, .dot-user, .dot-settings, .dot-moon, .dot-screen,
.dot-auto, .dot-key, .dot-wifi, .dot-bolt, .dot-trash,
.dot-link, .dot-star, .dot-rocket, .dot-join, .dot-warn,
.dot-success, .dot-file, .dot-power, .dot-upload, .dot-danger,
.dot-chat, .dot-download, .dot-zip, .dot-bell { background: transparent; }

/* emoji mapping: subtle and consistent */
.dot-info::before { content: "ℹ️"; }
.dot-user::before { content: "👤"; }
.dot-settings::before { content: "⚙️"; }
.dot-moon::before { content: "🌙"; }
.dot-screen::before { content: "🖥️"; }
.dot-auto::before { content: "🔁"; }
.dot-key::before { content: "🔑"; }
.dot-wifi::before { content: "📶"; }
.dot-bolt::before { content: "⚡"; }
.dot-trash::before { content: "🗑️"; }
.dot-link::before { content: "🔗"; }
.dot-star::before { content: "✨"; }
.dot-rocket::before { content: "🚀"; }
.dot-join::before { content: "🤝"; }
.dot-warn::before { content: "⚠️"; }
.dot-success::before { content: "✅"; }
.dot-file::before { content: "📄"; }
.dot-power::before { content: "🔌"; }
.dot-upload::before { content: "📤"; }
.dot-danger::before { content: "❗"; }
.dot-chat::before { content: "💬"; }
.dot-download::before { content: "📥"; }
.dot-zip::before { content: "🗜️"; }
.dot-bell::before { content: "🔔"; }

@keyframes dotPulse {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(255,255,255,0.0); }
  50% { transform: scale(1.08); box-shadow: 0 0 16px 0 rgba(35, 134, 54, 0.25); }
}

/* Neutral, subtle scale-only pulse for emojis (no colored glow) */
@keyframes emojiPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.06); }
}

/* Apple-like micro interactions */
.btn, .dropdown-item, .card, .file-item, .modal {
  transition: transform .2s cubic-bezier(0.22, 1, 0.36, 1), box-shadow .25s ease, border-color .25s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.card:hover { transform: translateY(-3px); }

/* Link-style button (for subtle actions like Forgot password) */
.btn-link {
  background: transparent;
  border: none;
  color: var(--info);
  padding: 0;
  font: inherit;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: .35rem;
}
.btn-link .dot { margin-right: 2px; }
.btn-link:hover { color: var(--info-hover); text-decoration: underline; }
.btn-link:focus { outline: none; text-decoration: underline; }

.app {
  max-width: 980px;
  margin: 0 auto;
  padding: 4.5rem 1rem 2rem; /* extra top padding for fixed topbar */
  min-height: 100vh; /* allow content to extend and scroll */
}

/* 🎨 Modern Header with Gradient & Glow */
.header {
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.header::before {
  content: '';
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--info), var(--accent-bright));
  border-radius: 2px;
  box-shadow: var(--shadow-glow);
}

/* === Send Queue Styles === */
.queue-list { display: flex; flex-direction: column; gap: 6px; }
.queue-item { display: grid; grid-template-columns: 1fr auto auto auto; gap: 8px; align-items: center; padding: 8px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg-secondary); }
.queue-item .meta { overflow: hidden; }
.queue-item .name { font-weight: 600; white-space: nowrap; text-overflow: ellipsis; overflow: hidden; }
.queue-item .size { font-size: .85rem; color: var(--text-secondary); }
.queue-item .btn-icon { border: 1px solid var(--border); background: var(--bg-tertiary); color: var(--text-primary); padding: 6px 8px; border-radius: 6px; cursor: pointer; }
.queue-item .btn-icon:hover { background: var(--bg-secondary); }
.queue-item .badge { font-size: .75rem; padding: 2px 6px; border-radius: 999px; border: 1px solid var(--border); color: var(--text-secondary); }
.queue-item.active { outline: 2px solid var(--accent); box-shadow: 0 0 0 2px color-mix(in oklab, var(--accent) 40%, transparent); }

.header h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  background: linear-gradient(135deg, var(--accent-bright) 0%, var(--info) 50%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
  position: relative;
  animation: glow 3s ease-in-out infinite alternate;
}

@keyframes glow {
  from { filter: drop-shadow(0 0 5px rgba(35, 134, 54, 0.3)); }
  to { filter: drop-shadow(0 0 15px rgba(35, 134, 54, 0.6)); }
}

.header p {
  color: var(--text-secondary);
  font-size: 1.2rem;
  margin-top: 1rem;
  font-weight: 400;
}

/* 🦸 Hero section on start page */
.hero { text-align:center; margin-bottom: 1.25rem; }
.hero-kicker { color: var(--text-secondary); font-weight: 600; letter-spacing:.06em; text-transform: uppercase; font-size: .85rem; }
.hero-title { font-size: clamp(1.4rem,4.6vw,2.4rem); margin:.35rem 0 .35rem; font-weight: 800; letter-spacing: -0.02em; }
.hero-sub { color: var(--text-secondary); font-size: 1rem; }

/* 🎯 Modern Glass-morphism Cards */
.card {
  background: linear-gradient(145deg, var(--bg-secondary), var(--bg-tertiary));
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition-smooth);
  position: relative;
  overflow: visible; /* allow tooltips to overflow the card */
  z-index: 1; /* base stacking context so tooltips can layer above */
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-bright), transparent);
  opacity: 0;
  transition: var(--transition-smooth);
}

.card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  transform: translateY(-2px);
}

.card:hover::before {
  opacity: 1;
}

.hidden { display: none !important; }

/* 🤝 Handshake overlay during connection setup */
.handshake-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(1200px 800px at 50% 40%, rgba(0,0,0,0.25), rgba(0,0,0,0.55));
  -webkit-backdrop-filter: blur(4px) saturate(120%);
  backdrop-filter: blur(4px) saturate(120%);
  z-index: 1400; /* below modals (1500), above app */
}
.handshake-overlay .hs-box {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: 1.25rem 1.5rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  min-width: 260px;
}
.handshake-overlay .hs-box::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: .6;
}
.handshake-overlay .hs-emoji {
  font-size: 48px;
  line-height: 1;
  filter: drop-shadow(0 0 10px rgba(63,185,80,.35));
  animation: hsPulse 1.4s ease-in-out infinite;
}
.handshake-overlay .hs-text { text-align: center; }
.handshake-overlay #hsTitle { font-weight: 700; }
.handshake-overlay #hsSub { color: var(--text-secondary); }

.handshake-overlay .hs-waves {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
}
.handshake-overlay .hs-waves span {
  position: absolute;
  width: 80px; height: 80px;
  border-radius: 999px;
  border: 2px solid color-mix(in oklab, var(--accent) 60%, transparent);
  opacity: .5;
  animation: hsWave 2.4s ease-out infinite;
}
.handshake-overlay .hs-waves span:nth-child(2) { animation-delay: .5s; }
.handshake-overlay .hs-waves span:nth-child(3) { animation-delay: 1s; }

.handshake-overlay .hs-rays {
  position: absolute;
  inset: -40px; /* extend a bit outside */
  border-radius: 24px;
  background: conic-gradient(from 0deg,
    rgba(63,185,80,.15), transparent 20%, rgba(88,166,255,.12) 40%, transparent 60%, rgba(63,185,80,.15) 80%, transparent);
  filter: blur(10px) saturate(130%);
  z-index: -1;
  animation: hsRotate 12s linear infinite;
}

@keyframes hsPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.06); }
}
@keyframes hsWave {
  0% { transform: scale(0.6); opacity: .55; }
  70% { opacity: .12; }
  100% { transform: scale(1.6); opacity: 0; }
}
@keyframes hsRotate { to { transform: rotate(360deg); } }

/* Respect reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  .handshake-overlay .hs-emoji { animation: none !important; }
  .handshake-overlay .hs-waves span { animation: none !important; opacity: .15; }
  .handshake-overlay .hs-rays { animation: none !important; }
}

/* Known peer badge */
.known-badge {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  margin-left: .5rem;
  padding: .1rem .45rem;
  font-size: .78rem;
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border-radius: 999px;
  line-height: 1.2;
  user-select: none;
  cursor: pointer;
}
.known-badge .dot { margin-right: 0; }

/* Row wrapper for top-left placement of known peer badge above status */
.known-peer-row {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  margin: .25rem 0 .25rem;
}
.known-peer-row .known-badge { margin-left: 0; }

/* 🎊 Reactions UI */
.reactions-bar {
  display: flex;
  gap: .4rem;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  margin: .75rem 0 0;
  padding: .5rem .6rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.reaction-btn {
  font-size: 1.2rem;
  line-height: 1;
  padding: .35rem .5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  transition: transform .12s ease, background .2s ease, border-color .2s ease;
}
.reaction-btn:hover { transform: translateY(-1px); background: var(--bg-hover); border-color: var(--accent); }
.reaction-btn:active { transform: translateY(0); }
.reaction-thanks { font-size: .95rem; color: var(--text-primary); }

.reaction-anim-container {
  position: relative;
  min-height: 0; /* does not take space */
}
.reaction-bubble {
  position: fixed; /* floats over app */
  bottom: 120px;
  right: 30px;
  font-size: 28px;
  pointer-events: none;
  animation: reactionFloat 1.6s ease-out forwards;
  filter: drop-shadow(0 4px 10px rgba(0,0,0,.35));
  z-index: 1300;
}
@keyframes reactionFloat {
  0% { transform: translate(0, 0) scale(.9); opacity: 0; }
  10% { opacity: 1; }
  70% { transform: translate(-20px, -80px) scale(1.05); opacity: .9; }
  100% { transform: translate(-30px, -140px) scale(1.1); opacity: 0; }
}

/* 🚀 Modern Button System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  font-family: inherit;
  letter-spacing: 0.01em;
}

/* Unified icon sizing for inline SVGs used in topbar */
.btn .icon {
  width: 18px;
  height: 18px;
  display: inline-block;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  transition: left 0.5s ease;
}

.btn:hover::before {
  left: 100%;
}

/* Button Variants */
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-bright));
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover { 
  background: linear-gradient(135deg, var(--accent-hover), var(--accent-bright));
  box-shadow: var(--shadow-md), 0 0 20px rgba(35, 134, 54, 0.4);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover { 
  border-color: var(--accent);
  background: var(--bg-hover);
  transform: translateY(-1px);
}

.btn-accent {
  background: var(--accent) !important;
  color: white !important;
  border-color: var(--accent) !important;
  box-shadow: 0 0 15px rgba(35, 134, 54, 0.3);
}

.btn-danger {
  background: linear-gradient(135deg, var(--danger), #ff4444);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-danger:hover { 
  background: linear-gradient(135deg, var(--danger-hover), #ff5555);
  box-shadow: var(--shadow-md), 0 0 20px rgba(248, 81, 73, 0.4);
  transform: translateY(-1px);
}

.btn:disabled {
  background: var(--bg-tertiary);
  color: var(--text-muted);
  cursor: not-allowed;
  border-color: var(--border);
  opacity: 0.6;
}

/* 📋 Modern Form Controls */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.75rem;
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1.3;
  word-break: break-word;
}

/* Ensure small helper text inside labels wraps properly */
.form-group label small {
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
  line-height: 1.2;
}

/* Small bordered info badge with hover tooltip */
.info-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  margin-left: 8px;
  vertical-align: middle;
  border: 1px solid var(--border);
  border-radius: 50%;
  font-size: 12px;
  line-height: 1;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  cursor: help;
  position: relative;
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}
.info-badge:hover, .info-badge:focus {
  outline: none;
  border-color: var(--accent);
  color: var(--text-primary);
  background: var(--bg-hover);
  z-index: 2002;
}
.info-badge::after {
  content: attr(data-tip);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: calc(100% + 8px);
  /* allow explicit line breaks in data-tip via \n or 
 */
  white-space: pre-line;
  width: auto;
  min-width: 220px;
  max-width: 320px;
  padding: 0.6rem 0.75rem;
  font-size: 0.85rem;
  line-height: 1.25;
  color: var(--text-primary);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  z-index: 3001; /* above cards, modals background, etc. */
  text-transform: none;
  transition: opacity .18s ease, visibility .18s ease, transform .18s ease;
}
.info-badge::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: calc(100% + 4px);
  border: 6px solid transparent;
  border-top-color: var(--glass-bg);
  opacity: 0;
  visibility: hidden;
  transition: opacity .18s ease, visibility .18s ease;
}
.info-badge:hover::after, .info-badge:focus::after {
  opacity: 1;
  visibility: visible;
  background: var(--tooltip-bg, rgba(13, 17, 23, 0.98));
  border-color: var(--tooltip-border, rgba(110, 118, 129, 0.6));
  box-shadow: 0 12px 32px rgba(0,0,0,0.45), 0 2px 8px rgba(0,0,0,0.3);
  text-shadow: 0 1px 0 rgba(0,0,0,0.2);
}
.info-badge:hover::before, .info-badge:focus::before {
  opacity: 1;
  visibility: visible;
  border-top-color: var(--tooltip-bg, rgba(13, 17, 23, 0.98));
}

/* Tooltips on hover removed per request */
.has-tip { position: static; }
.btn.has-tip { overflow: visible; }

/* 🎛️ Session Settings – visual polish */
#sessionModal .settings-body { gap: 1.25rem; }
#sessionModal .about-section {
  border: 1px solid var(--border);
  background: linear-gradient(145deg, var(--bg-secondary), var(--bg-tertiary));
  border-radius: var(--radius-lg);
  padding: 1rem;
  margin-bottom: .5rem;
}
#sessionModal .about-section + .about-section { margin-top: .25rem; }
#sessionModal .about-section h4 {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: 1rem;
  margin: 0 0 .75rem 0;
  padding-bottom: .5rem;
  border-bottom: 1px dashed var(--border);
}
#sessionModal .btn-group { gap: .5rem .5rem; }
#sessionModal .btn-group .btn { border-radius: var(--radius-md); }

/* Segmented look for tool buttons */
#sessionModal .btn-group .btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
}
#sessionModal .btn-group .btn:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}

/* Language toggle active state */
.lang-toggle[aria-pressed="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* Quality indicator band */
#sessionModal .quality-indicator {
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.1);
  padding: .5rem .75rem;
  border-radius: var(--radius-md);
}

/* Inputs under connection settings */
#sessionModal .form-group .form-control {
  background: var(--bg-secondary);
}
#sessionModal .form-group small { display:block; margin-top:.35rem; }

/* Results row (Ping + Speed box) */
#sessionModal .results-strip {
  width: 100%;
  display: flex; align-items: center; flex-wrap: wrap; gap: 1rem 1.25rem;
  margin-top: .5rem;
}
#sessionModal .results-strip .label { color: var(--text-secondary); }
#sessionModal .speed-box { border-color: var(--border); background: var(--bg-secondary); }

/* Speed result box */
.speed-box {
  display: inline-grid;
  grid-template-columns: repeat(2, minmax(72px, auto));
  gap: .5rem .75rem;
  padding: .35rem .6rem;
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
}
.speed-box.single {
  grid-template-columns: 1fr;
  min-width: 160px;
}
.speed-box .speed-item { display: grid; grid-template-rows: auto auto; align-items: center; }
.speed-box .speed-label { font-size: .7rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: .06em; }
.speed-box .speed-value { font-weight: 700; color: var(--text-primary); }

/* Generic stat box (used for Ping) */
.stat-box {
  display: grid;
  grid-template-rows: auto auto;
  gap: .25rem;
  padding: .35rem .6rem;
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  min-width: 160px;
}
.stat-box.accent {
  border-color: var(--accent);
  background: linear-gradient(180deg, var(--accent-light), rgba(35, 134, 54, 0.04));
  box-shadow: 0 0 0 2px rgba(63,185,80,0.12) inset;
}
.stat-box .stat-label {
  font-size: .7rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: .06em;
}
.stat-box .stat-value {
  font-weight: 700; color: var(--text-primary);
}
.stat-box.accent .stat-value {
  color: var(--accent);
}

.form-control {
  width: 100%;
  padding: 0.875rem 1rem;
  background: var(--bg-tertiary);
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: var(--transition-fast);
  font-family: inherit;
}

/* Speedtest running indicator */
#sessionModal .test-status {
  display: flex; align-items: center; gap: .75rem; flex-wrap: wrap;
  margin-top: .5rem; color: var(--text-secondary);
}
#sessionModal .test-status .progress-mini {
  flex: 1 1 140px; height: 6px; border-radius: 999px;
  background: var(--bg-tertiary); border: 1px solid var(--border);
  overflow: hidden; min-width: 140px;
}
#sessionModal .test-status .progress-mini > span {
  display: block; height: 100%; width: 0%; background: var(--accent);
  transition: width .18s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-light);
  background: var(--bg-secondary);
}

.form-control:hover {
  border-color: var(--accent);
}

.form-control::placeholder {
  color: var(--text-muted);
  font-style: italic;
}

/* Invalid code feedback */
.form-control.input-error {
  border-color: var(--danger);
  box-shadow: 0 0 0 4px rgba(248, 81, 73, 0.18);
}
.shake {
  animation: shakeX 380ms cubic-bezier(.36,.07,.19,.97) both;
}
@keyframes shakeX {
  10%, 90% { transform: translateX(-1px); }
  20%, 80% { transform: translateX(2px); }
  30%, 50%, 70% { transform: translateX(-4px); }
  40%, 60% { transform: translateX(4px); }
}

/* Join Section */
.join-section {
  display: flex;
  gap: 1rem;
  align-items: end;
  margin-top: 1rem;
}

.join-section .form-group {
  flex: 1;
  margin-bottom: 0;
}

/* Inline code input with paste button */
.code-input {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}
.code-input .form-control {
  flex: 1;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Session Code Display */
.session-display {
  text-align: center;
  padding: 2rem;
  background: var(--bg-tertiary);
  border: 2px dashed var(--border);
  border-radius: 12px;
  margin: 1rem 0;
}
.session-actions {
  margin-top: 0.75rem;
  display: flex;
  justify-content: center;
  gap: 0.5rem;
}
.muted { color: var(--text-secondary); margin-top: 0.5rem; }

.session-code {
  font-family: 'SF Mono', Monaco, 'Inconsolata', 'Roboto Mono', monospace;
  font-size: 2rem;
  font-weight: bold;
  color: var(--accent);
  letter-spacing: 0.2em;
  margin: 0.5rem 0;
}

/* Enhanced code card + boxes for wait screen */
.code-card { 
  display: grid; 
  place-items: center; 
  padding: 1rem; 
  background: linear-gradient(145deg, var(--bg-secondary), var(--bg-tertiary));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}
.code-boxes { display: grid; grid-auto-flow: column; gap: .5rem; align-items: center; }
.code-char {
  width: 48px; height: 60px; display: grid; place-items: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-family: 'SF Mono', Monaco, 'Inconsolata', 'Roboto Mono', monospace;
  font-size: 1.6rem; font-weight: 800; letter-spacing: 0;
  color: var(--text-primary);
  box-shadow: inset 0 -6px 18px rgba(0,0,0,.15);
}
.code-char.placeholder { color: var(--text-secondary); border-style: dashed; }
.code-sep { opacity: .35; margin: 0 .15rem; font-weight: 700; }

@media (max-width: 900px) {
  .code-char { width: 42px; height: 54px; font-size: 1.4rem; }
}

/* New wait hero and code panel */
.wait-hero { margin-bottom: 1rem; }
.wait-badge {
  display: inline-flex; align-items: center; gap:.4rem;
  padding: .35rem .6rem; border-radius: 999px; font-weight: 700; font-size: .8rem;
  background: rgba(63,185,80,0.12); color: var(--accent); border: 1px solid rgba(63,185,80,0.35);
  box-shadow: inset 0 0 0 1px rgba(63,185,80,0.08);
}
.wait-title { font-size: clamp(1.2rem, 3.2vw, 1.8rem); margin: .4rem 0 .2rem; font-weight: 800; letter-spacing: -0.01em; }

.code-panel { border:1px solid var(--border); border-radius: var(--radius-xl); overflow: hidden; background: linear-gradient(145deg, var(--bg-secondary), var(--bg-tertiary)); box-shadow: var(--shadow-md); }
.code-panel-header { padding: .75rem 1rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--text-secondary); border-bottom: 1px solid var(--border); background: rgba(255,255,255,0.02); }
.code-panel-body { padding: 1rem; display: grid; gap: .75rem; }
.code-panel-actions { display:flex; flex-wrap: wrap; gap: .5rem; padding: 0 1rem 1rem; }
.link-field input.form-control { width: 100%; }

/* Center the single-line session code in the wait screen */
.code-display { text-align: center; }

/* Removed wait-visual decorative block */

/* Start screen layout */
.start-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  /* Stretch columns to equal height so CTAs can align */
  align-items: stretch;
}
/* (old .start-grid styles removed in favor of .start-tiles) */

/* Screen-reader only utility */
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }

/* Fancy Stepper */
.start-steps {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.start-steps .step {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-tertiary);
  transition: var(--transition-smooth);
}
.start-steps .step:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.start-steps .step-num {
  width: 36px;
  height: 36px;
  min-width: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-bright));
  color: #fff;
  font-weight: 800;
  box-shadow: var(--shadow-glow);
}
.start-steps .step-text h4 {
  margin: 0 0 0.25rem 0;
}
.start-steps .step-text p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* moved responsive grid to styles.mobile.css */

/* moved mobile refinements to styles.mobile.css */

/* Prevent horizontal scroll on narrow screens */
html, body { overflow-x: hidden; }

/* moved topbar mobile sizing to styles.mobile.css */

/* Status Messages */
.status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem;
  border-radius: 8px;
  margin: 1rem 0;
  font-weight: 500;
}

.status-waiting {
  background: rgba(210, 153, 34, 0.1);
  color: var(--warning);
  border: 1px solid rgba(210, 153, 34, 0.3);
}

.status-connected {
  background: rgba(35, 134, 54, 0.1);
  color: var(--accent);
  border: 1px solid rgba(35, 134, 54, 0.3);
}

.status-error {
  background: rgba(218, 54, 51, 0.1);
  color: var(--danger);
  border: 1px solid rgba(218, 54, 51, 0.3);
}

/* (Reverted) Keep default emoji behavior globally; adjust only in verify row */

/* Profile verify row: slightly tighter line-height for crisper alignment */
#verifyStatusRow { line-height: 1.25; }

/* (Reverted) Headings use default .dot styling */

/* Request Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  /* Softer dim with subtle gradient and background blur */
  background: radial-gradient(1200px 800px at 50% 30%, rgba(0,0,0,0.55), rgba(0,0,0,0.78));
  -webkit-backdrop-filter: blur(8px) saturate(120%);
  backdrop-filter: blur(8px) saturate(120%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1500; /* above floating-menu (1100) */
}

/* Auth modal opening animation */
#authModal.opening { animation: authOverlayIn 240ms ease-out; }
#authModal.opening .modal { animation: authModalPop 320ms cubic-bezier(0.22, 1, 0.36, 1); }
/* Apply the same opening animation to the new Menu modal */
#menuModal.opening { animation: authOverlayIn 240ms ease-out; }
#menuModal.opening .modal { animation: authModalPop 320ms cubic-bezier(0.22, 1, 0.36, 1); }

@keyframes authOverlayIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes authModalPop {
  from { opacity: 0; transform: translateY(10px) scale(0.965); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal {
  /* Glassmorphism look */
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 1.5rem 1.5rem 1.25rem;
  max-width: 500px;
  width: min(92%, 500px);
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  position: relative;
}

/* Subtle accent line on top of every modal */
.modal::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: .5;
}

/* Compact modal variant for small forms like password reset */
.modal-sm { max-width: 420px; }

/* Lock page scroll when any modal is open */
body.modal-open { overflow: hidden; }

/* Mobile: modal content should be scrollable if taller than viewport */
@media (max-width: 900px) {
  .modal { max-height: calc(100vh - 3rem); overflow-y: auto; -webkit-overflow-scrolling: touch; }
}

/* Desktop: keep modal static (no inner scroll), page is locked via body.modal-open */
@media (min-width: 901px) {
  .modal { max-height: none; overflow: visible; }
}

/* Desktop override: keep Session Settings modal scrollable within viewport */
#sessionModal .modal {
  max-height: calc(100vh - 3rem);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

/* Settings (Menu) modal: scroll inner content, keep bottom actions fixed */
#menuModal .modal {
  max-height: calc(100vh - 3rem);
  overflow: hidden; /* prevent modal itself from scrolling */
  display: flex;
  flex-direction: column;
}
#menuModal .settings-body {
  flex: 1 1 auto;
  overflow: auto; /* scrollable content area */
  -webkit-overflow-scrolling: touch;
}
#menuModal .modal-actions {
  /* fixed within modal (outside the scroll area) */
  background: var(--glass-bg);
}

/* Privacy modal: larger, taller, scrollable, formal content */
#privacyModal .modal {
  max-width: 1000px;
  width: min(96vw, 1000px);
  max-height: calc(100vh - 2rem);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

/* Make privacy section headings neutral (no accent color) */
#privacyModal .about-section h4 {
  color: var(--text-primary);
}

/* Formal list styling inside privacy modal (no green bars/backgrounds) */
#privacyModal .about-section ul {
  list-style: disc;
  padding-left: 1.25rem;
  margin: .75rem 0 1rem;
}
#privacyModal .about-section li {
  padding: .25rem 0;
  margin: .25rem 0;
  background: transparent;
  border: none;
  border-left: none;
  color: var(--text-primary);
  transform: none;
}
#privacyModal .about-section li:hover {
  background: transparent;
  transform: none;
}

/* Polished Settings layout */
.settings-body { display: grid; gap: 1rem; margin-top: .5rem; }
.settings-body .about-section { margin: 0; }

.modal h3 {
  margin-bottom: .75rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: .5rem;
  padding-bottom: .35rem;
  border-bottom: 1px dashed var(--glass-border);
}

.modal-actions {
  display: flex;
  gap: .75rem;
  margin-top: 1.0rem;
  padding-top: .85rem;
  border-top: 1px solid var(--glass-border);
  justify-content: flex-end;
}

/* Make small popups and wait/login boxes extra crisp */
#guestWaitModal .modal,
#popupOverlay .modal,
#limitInfoOverlay .modal,
.modal-sm {
  box-shadow: var(--shadow-md), 0 8px 28px rgba(0,0,0,0.35);
  border-radius: var(--radius-lg);
}

/* Stronger pop-in for modals with .opening flag (matched to app.js class toggles) */
#authModal.opening .modal,
#menuModal.opening .modal,
#sessionModal.opening .modal {
  animation: authModalPop 320ms cubic-bezier(0.22, 1, 0.36, 1);
}

/* Buttons inside modals: a tiny size bump and glow on hover for a premium feel */
.modal .btn {
  transform-origin: center;
}
.modal .btn:hover {
  box-shadow: 0 4px 14px rgba(0,0,0,0.22);
}

/* Spacing row under inputs in auth view */
.auth-hint-row {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  margin: -6px 0 8px 0;
}

.hint-text { color: var(--text-secondary); margin: -.25rem 0 .5rem; }

/* Auth status uses existing .status variants; ensure spacing */
#authStatus { margin-top: 0.5rem; }
#profileStatus { margin-top: 0.5rem; }

/* ON/OFF status pill styling for toggles (auto accept, diagnostics) */
#autoModeToggle #autoModeStatus,
#diagConsentToggle #diagConsentStatus {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.85rem;
  line-height: 1;
  border: 1px solid var(--border);
  margin-left: .35rem;
  letter-spacing: .04em;
}
#autoModeToggle[aria-pressed="true"] #autoModeStatus,
#diagConsentToggle[aria-pressed="true"] #diagConsentStatus {
  color: var(--accent);
  border-color: rgba(46,160,67,0.5);
  background: rgba(63,185,80,0.12);
}
#autoModeToggle[aria-pressed="false"] #autoModeStatus,
#diagConsentToggle[aria-pressed="false"] #diagConsentStatus {
  color: var(--danger);
  border-color: rgba(207,34,46,0.5);
  background: rgba(207,34,46,0.1);
}

/* === Footer & Privacy sections === */
.site-footer {
  margin-top: 2rem;
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--glass-border);
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(0,0,0,0.05));
}
.footer-inner { display: flex; gap: .75rem; flex-wrap: wrap; color: var(--text-secondary); }
.footer-inner a { color: var(--text-secondary); text-decoration: none; }
.footer-inner a:hover { text-decoration: underline; color: var(--text-primary); }

.privacy-section {
  padding: 1.25rem;
  margin: 0 1rem 2rem 1rem;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--bg-secondary), var(--bg-tertiary));
}
.privacy-section h2 { margin: 0 0 .75rem 0; }
.privacy-section h3 { margin: 1rem 0 .5rem 0; font-size: 1rem; }
.privacy-section p, .privacy-section li { line-height: 1.6; }

/* Align verify icon and text perfectly in the profile row */
#verifyStatusRow { align-items: center; }
#verifyStatusRow .dot { align-self: center; }
#verifyStatusRow .dot::before { transform: none; }
#verifyStatusRow .dot.dot-success::before { transform: translateY(3px); line-height: 1; }
#verifyStatusRow #verifyStatusText { display: inline-flex; align-items: center; }

/* Profile modal redesign */
.profile-body { display: grid; gap: 1rem; margin-top: .5rem; }
.section-card { background: var(--bg-tertiary); border: 1px solid var(--border); border-radius: 10px; padding: 1rem; }
.section-card h4 { margin: 0 0 .5rem 0; display: flex; align-items: center; gap: .5rem; font-size: 1rem; }
.form-grid { display: grid; gap: .75rem; }
@media (min-width: 860px) { .form-grid { grid-template-columns: 1fr 1fr; } }
.form-grid .form-group { margin: 0; }
.inline-help { font-size: 12px; color: var(--text-secondary); margin-top: .25rem; }

/* Ensure equal height for inputs in the Profile modal only */
#profileModal .form-control {
  height: 44px;
  min-height: 44px;
  padding-top: 10px;   /* use px to avoid subpixel rounding differences */
  padding-bottom: 10px;
  line-height: 1.2;    /* lock text metrics to avoid visual height drift on placeholder/italic */
  display: block;      /* normalize inline-block baseline quirks */
  box-sizing: border-box;
  appearance: none;    /* standard */
  -webkit-appearance: none;
  -moz-appearance: none;
  border-width: 2px;   /* fix any UA focus width tweaks */
}

/* Explicitly lock both password fields to the same height (guards against browser quirks) */
#profileCurrentPassword,
#profileNewPassword {
  height: 44px !important;
  min-height: 44px !important;
  max-height: 44px !important;
  padding-top: 10px !important;
  padding-bottom: 10px !important;
  padding-left: 16px !important;
  padding-right: 16px !important;
  line-height: 1.2 !important;
  display: block !important;
  box-sizing: border-box !important;
  border-width: 2px !important;
  font-size: 0.95rem !important;
  font-family: inherit !important;
  outline: none !important;
  background-clip: padding-box !important;
  appearance: none !important;
  -webkit-appearance: none !important;
  -moz-appearance: none !important;
  /* Remove browser autofill icon in Chrome */
  &::-webkit-credentials-auto-fill-button { display: none !important; }
  &::-webkit-input-placeholder { color: var(--text-muted); font-style: normal; }
  &::-moz-placeholder { color: var(--text-muted); font-style: normal; }
  &:-ms-input-placeholder { color: var(--text-muted); font-style: normal; }
  &::placeholder { color: var(--text-muted); font-style: normal; }
}

/* Remove outer glow in profile modal so focused field doesn't look taller */
#profileModal .form-control:focus {
  box-shadow: none;
}

/* Avoid italic placeholder in profile inputs (can visually alter height/perception) */
#profileModal .form-control::placeholder {
  font-style: normal;
}

/* Auth Tabs */
.tab-header {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  position: relative;
}
.tab-btn {
  flex: 1;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  cursor: pointer;
  transition: background .25s ease, color .25s ease, transform .25s ease;
}
.tab-btn:hover { filter: brightness(1.05); }
.tab-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  transform: translateY(-1px);
}
.auth-view { margin-top: 0.5rem; }

/* Smooth height transition for auth forms of different sizes */
.auth-views {
  position: relative;
  overflow: visible; /* allow tooltips to overflow */
  pointer-events: auto;
}
.auth-views > .auth-view {
  will-change: opacity, transform;
}

/* Tab content switch animations */
.auth-view.anim-in-left { animation: authInLeft 260ms ease; }
.auth-view.anim-in-right { animation: authInRight 260ms ease; }
.auth-view.anim-out-left { animation: authOutLeft 220ms ease; }
.auth-view.anim-out-right { animation: authOutRight 220ms ease; }

@keyframes authInLeft { from { opacity: 0; transform: translateX(-12px); } to { opacity: 1; transform: translateX(0); } }
@keyframes authInRight { from { opacity: 0; transform: translateX(12px); } to { opacity: 1; transform: translateX(0); } }
@keyframes authOutLeft { from { opacity: 1; transform: translateX(0); } to { opacity: 0; transform: translateX(-12px); } }
@keyframes authOutRight { from { opacity: 1; transform: translateX(0); } to { opacity: 0; transform: translateX(12px); } }

/* Success burst effect inside auth modal */
.auth-success-burst {
  position: absolute;
  inset: -10px;
  pointer-events: none;
  background: radial-gradient(circle at center, rgba(63,185,80,0.25) 0%, rgba(63,185,80,0.18) 22%, rgba(63,185,80,0.0) 60%);
  filter: blur(0.2px);
  border-radius: 16px;
  animation: authSuccessBurst 520ms ease-out forwards;
}
@keyframes authSuccessBurst {
  0%   { opacity: 0; transform: scale(0.85); }
  40%  { opacity: 1; transform: scale(1.02); }
  100% { opacity: 0; transform: scale(1.18); }
}

/* Transfer Stats */
.transfer-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.stat-item {
  background: var(--bg-tertiary);
  padding: 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  text-align: center;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--accent);
  display: block;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-top: 0.25rem;
}

/* Progress */
.progress-container {
  margin: 1.5rem 0;
}

/* 📊 Modern Progress System */
.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.progress-bar-bg {
  width: 100%;
  height: 12px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  position: relative;
}

.progress-bar-bg::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(255,255,255,0.05) 50%, 
    transparent 100%);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.progress-bar {
  height: 100%;
  background: linear-gradient(45deg, var(--accent), var(--accent-bright), var(--info));
  background-size: 200% 200%;
  width: 0%;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: var(--radius-lg);
  position: relative;
  animation: gradientShift 3s ease-in-out infinite;
  box-shadow: 0 0 10px rgba(35, 134, 54, 0.4);
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* File Transfer */
.transfer-section {
  border-top: 1px solid var(--border);
  padding-top: 2rem;
  margin-top: 2rem;
}

/* Polished upload card wrapper */
.upload-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 1.25rem 1.25rem 1rem;
  box-shadow: var(--shadow-md);
}

/* Session header toolbar */
.transfer-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: .75rem;
  margin-bottom: 1rem;
}
.session-toolbar {
  display: inline-flex;
  gap: .5rem;
  align-items: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: .25rem;
  box-shadow: 0 2px 8px var(--shadow);
}
.session-toolbar .btn {
  padding: .5rem .9rem;
  font-size: .9rem;
}
.btn-pill {
  border-radius: 999px;
}

/* Clean transfer section spacing */
.transfer-section.clean {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

/* ===== New horizontal dashboard (replaces old sidebar) ===== */
.session-dashboard {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin: 0 0 1rem 0;
}
.session-dashboard .session-toolbar {
  justify-content: flex-start;
}
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(160px, 1fr));
  gap: 0.75rem;
}
.kpi-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: .9rem 1rem;
  box-shadow: var(--shadow-md);
}
.kpi-label { color: var(--text-secondary); font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; margin-bottom: .35rem; }
.kpi-value { font-weight: 800; font-size: 1.25rem; color: var(--accent); }

@media (max-width: 900px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== Unified action dock ===== */
.action-dock {
  position: sticky;
  top: calc(64px + env(safe-area-inset-top));
  z-index: 1005;
  background: linear-gradient(145deg, var(--bg-secondary), var(--bg-tertiary));
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: .5rem;
  margin: .75rem 0 1rem;
  box-shadow: var(--shadow-md);
}
.action-dock-row { display:flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.dock-divider { width: 1px; height: 32px; background: var(--border); margin: 0 .25rem; }
/* uniform button sizing inside the dock */
.action-dock .btn,
.action-dock .btn-small,
.action-dock .btn-pill {
  padding: 0.65rem 1.0rem;
  font-size: 0.95rem;
  height: 40px;
  line-height: 1;
  border-radius: var(--radius-md);
}
/* keep pill look for the two session buttons while matching height */
.action-dock #btnSessionSettings,
.action-dock #btnDisconnect { border-radius: 999px; }
@media (max-width: 700px) {
  .action-dock { position: static; }
  .dock-divider { display: none; }
}

/* Panel cards to group progress and received list */
.panel-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 1.25rem;
  box-shadow: var(--shadow-md);
  margin-top: 1rem;
}
.transfer-panel-hint { margin-top: .25rem; color: var(--text-secondary); font-size: .9rem; }

/* Right sidebar toolbar spacing */
.connect-side .session-toolbar { margin-bottom: .5rem; }

/* Session waiting code card */
.code-card {
  margin: .75rem auto 0;
  padding: .75rem 1rem;
  border-radius: 12px;
  background: linear-gradient(180deg, var(--bg-secondary), var(--bg-tertiary));
  border: 1px solid var(--border);
  box-shadow: 0 6px 18px var(--shadow);
  display: inline-flex;
}
.session-display .session-code {
  letter-spacing: .25rem;
  font-weight: 800;
  font-size: 1.75rem;
}

/* ===== Start Tiles (Create / Join) ===== */
.start-tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.tile {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 1.25rem 1.25rem 1rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}
.tile:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.tile-head { display:flex; align-items:center; gap:.75rem; margin-bottom: .5rem; }
.tile-icon { width: 36px; height:36px; display:flex; align-items:center; justify-content:center; background: var(--bg-tertiary); border:1px solid var(--border); border-radius: 10px; }
.tile-actions { margin-top: .75rem; display:flex; gap:.75rem; align-items:center; flex-wrap: wrap; }
.tile-actions.join { gap: .5rem; }
.btn-large { padding: .85rem 1.25rem; font-size: 1rem; }

/* ===== Connected Two-Column Layout ===== */
.connect-grid { display:grid; grid-template-columns: 1.6fr .9fr; gap: 1.25rem; align-items: start; }
@media (max-width: 900px) { .connect-grid { grid-template-columns: 1fr; } }
.connect-main { min-width: 0; }
.connect-side { min-width: 0; }
.side-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow-md);
  position: sticky;
  top: calc(70px + env(safe-area-inset-top));
}
.side-title { margin-bottom: .5rem; color: var(--text-primary); }
.transfer-stats.side { display:grid; grid-template-columns: 1fr 1fr; gap: .75rem 1.25rem; }
.transfer-stats.compact { gap: .5rem 1rem; }

/* ===== Send mode row ===== */
.form-sendmode { margin-top: .75rem; }
.sendmode-options { display:flex; gap:1rem; align-items:center; flex-wrap: wrap; }
.sendmode-options.switchbar {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .25rem;
}
.sendmode-options.switchbar .choice { margin: 0; position: relative; }
.sendmode-options.switchbar .choice input { display:none; }
.sendmode-options.switchbar .choice span {
  display: inline-flex; align-items: center; justify-content: center;
  padding: .45rem 1rem; min-width: 74px;
  border-radius: 999px; border: 1px solid var(--border);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  position: relative; z-index: 1; cursor: pointer;
  transition: color .18s ease, transform .18s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease;
}
.sendmode-options.switchbar .choice:hover span { border-color: var(--accent); }
.sendmode-options.switchbar .choice:active span { transform: translateY(0); }
.sendmode-options.switchbar .choice input:checked + span {
  border-color: var(--accent);
}
.choice { display:flex; gap:.5rem; align-items:center; cursor:pointer; }

/* Animated thumb background for send mode */
/* track line */
.sendmode-options.switchbar::before { content: none; }
/* knob */
.sendmode-options.switchbar::after { content: none; }

/* ===== Action Row ===== */
.action-row { display:flex; gap: 1rem; margin-top: 1rem; align-items: center; flex-wrap: wrap; }

/* 📁 Modern File Input System */
.file-input-wrapper {
  position: relative;
  display: inline-block;
  width: 100%;
}

.file-input {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
  z-index: 2;
}

.file-input-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 3rem 2rem;
  border: 2px dashed var(--border);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, var(--bg-secondary), var(--bg-tertiary));
  transition: var(--transition-smooth);
  cursor: pointer;
  text-align: center;
  min-height: 160px;
  position: relative;
  overflow: hidden;
}

/* decorative animated glow ring around the dropzone */
.file-input-display { box-shadow: inset 0 0 0 2px rgba(255,255,255,0.02); }
.file-input-display::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: conic-gradient(from 0deg, transparent 0 20%, rgba(63,185,80,0.18) 30%, transparent 40% 60%, rgba(63,185,80,0.18) 70%, transparent 80% 100%);
  filter: blur(8px);
  opacity: 0;
  transition: opacity .25s ease;
  pointer-events: none;
}
.file-input-display:hover::after,
.file-input-display.dragging::after { opacity: .85; animation: dz-ring 2.8s linear infinite; }
@keyframes dz-ring { to { transform: rotate(1turn); } }

.file-input-display::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 56px;
  transform: translate(-50%, -50%);
  width: 56px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-bright));
  box-shadow: var(--shadow-sm);
  opacity: 0.35;
  transition: var(--transition-smooth);
}

.file-input-display:hover {
  border-color: var(--accent);
  background: linear-gradient(180deg, var(--accent-light), rgba(35, 134, 54, 0.05));
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.file-input-display:hover::before {
  opacity: 0.6;
  transform: scale(1.1);
}

.file-input-display.has-file {
  border-color: var(--accent);
  background: linear-gradient(180deg, var(--accent-light), rgba(35, 134, 54, 0.08));
  border-style: solid;
}

.file-input-display.has-file::before {
  content: '';
  width: 48px;
  height: 36px;
  border-radius: 8px;
  background: linear-gradient(135deg, #22c55e, #16a34a);
  opacity: 0.7;
}

/* small controls area in top-right of upload card */
.upload-card { position: relative; }
.upload-card-controls { position: absolute; top: .6rem; right: .6rem; display:flex; gap:.4rem; }

/* Outline danger variant (subtle red outline) */
.btn-outline-danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
}
.btn-outline-danger:hover {
  background: rgba(248, 81, 73, 0.08);
  border-color: var(--danger-hover);
  color: var(--danger-hover);
}

.file-input-display.dragging {
  border-color: var(--accent-bright);
  background: linear-gradient(145deg, rgba(35, 134, 54, 0.15), rgba(35, 134, 54, 0.08));
  transform: scale(1.02);
  box-shadow: 0 0 0 4px rgba(63,185,80,0.1), var(--shadow-lg);
}

.file-info {
  flex: 1;
}

.file-name {
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.file-size {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* 📂 Modern Received Files List */
.received-files {
  margin-top: 2rem;
}

.received-files h3 {
  margin-bottom: 1.5rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: var(--font-bold);
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--border);
}

.received-files h3::before { content: none; }

.file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-bottom: 1rem;
  transition: var(--transition-smooth);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.file-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent), var(--accent-bright));
  opacity: 0;
  transition: var(--transition-smooth);
}

.file-item:hover {
  border-color: var(--accent);
  background: var(--glass-bg-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.file-item:hover::before {
  opacity: 1;
}

.file-item-info {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex: 1;
}

.file-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--accent), var(--accent-bright));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: var(--font-bold);
  font-size: 1.1rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.file-item:hover .file-icon {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

.file-details h4 {
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  font-size: 1rem;
  font-weight: var(--font-medium);
  line-height: 1.3;
}

/* Lightbox preview modal content spacing */
#previewContent {
  padding: .25rem 0;
}

/* History list */
.history-list {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.history-item {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: .5rem .75rem;
  padding: .5rem .75rem;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  background: var(--glass-bg);
}
.history-dir {
  width: 24px; height: 24px;
  display:flex; align-items:center; justify-content:center;
}
.history-name { font-weight: var(--font-medium); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.history-size { color: var(--text-secondary); font-size: var(--font-sm); }
.history-time { color: var(--text-secondary); font-size: var(--font-sm); }

.file-meta {
  color: var(--text-secondary);
  font-size: var(--font-sm);
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 0.25rem;
}

.file-meta span {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.file-meta span::before {
  font-size: 0.8em;
}

.file-size-meta::before { content: none; }

.file-type-meta::before { content: none; }

.file-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* ⛅ Empty state for received files */
.empty-state { border:1px dashed var(--border); border-radius: var(--radius-lg); padding: 1.25rem; text-align:center; color: var(--text-secondary); background: var(--bg-tertiary); }
.empty-emoji { font-size: 2rem; line-height:1; margin-bottom: .25rem; }
.empty-text { font-size: .95rem; }

.file-actions .btn-small {
  padding: 0.5rem 1rem;
  font-size: var(--font-sm);
  min-width: auto;
  border-radius: var(--radius-md);
}

/* 🎯 Quick Actions Panel */
.quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 2rem 0;
  padding: 1.5rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  position: relative;
}

.quick-actions::before { content: none; }

.file-counter {
  font-size: var(--font-sm);
  color: var(--text-secondary);
  padding: 0.75rem 1.25rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  font-weight: var(--font-medium);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
}

.file-counter::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

/* 🎭 Enhanced Animations */
@keyframes pulse {
  0%, 100% { 
    opacity: 1;
    transform: scale(1);
  }
  50% { 
    opacity: 0.7;
    transform: scale(1.02);
  }
}

.pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* Wait tips hover icon container */
.wait-hint { display:flex; align-items:center; gap:.5rem; margin-top:.5rem; }

/* Animated dotting for waiting status */
.dotting { display:inline-flex; gap:4px; margin-left: .35rem; }
.dotting > span { width:6px; height:6px; border-radius:50%; background: currentColor; opacity:.6; display:block; animation: dotting 1.2s infinite ease-in-out; }
.dotting > span:nth-child(2) { animation-delay: .2s; }
.dotting > span:nth-child(3) { animation-delay: .4s; }
@keyframes dotting {
  0%, 100% { transform: translateY(0); opacity:.35; }
  50% { transform: translateY(-2px); opacity: 1; }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.slide-in {
  animation: slideIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes shake {
  0%, 100% { transform: translateX(0) rotate(0deg); }
  25% { transform: translateX(-8px) rotate(-1deg); }
  75% { transform: translateX(8px) rotate(1deg); }
}

.shake {
  animation: shake 0.6s cubic-bezier(0.36, 0.07, 0.19, 0.97);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translate3d(0, 40px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.bounce {
  animation: bounce 1s ease infinite;
}

/* 🎮 Button Groups & Controls */
.btn-group {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.btn-small {
  padding: 0.5rem 1rem;
  font-size: var(--font-sm);
  font-weight: var(--font-medium);
  border-radius: var(--radius-md);
  min-height: auto;
  line-height: 1.4;
}

/* Quick Actions */
.quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.5rem 0;
  padding: 1rem;
  background: var(--bg-tertiary);
  border-radius: 8px;
  border: 1px solid var(--border);
}

.file-counter {
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  background: var(--bg-tertiary);
  border-radius: 20px;
  border: 1px solid var(--border);
}

.file-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* 🌙 Enhanced Light Theme */
body.light-theme {
  --bg-primary: #ffffff;
  --bg-secondary: #f6f8fa;
  --bg-tertiary: #ffffff;
  --border: #d0d7de;
  --text-primary: #24292f;
  --text-secondary: #656d76;
  --text-muted: #8b949e;
  --shadow: rgba(140, 149, 159, 0.15);
  --shadow-sm: 0 1px 3px rgba(140, 149, 159, 0.1);
  --shadow-md: 0 4px 12px rgba(140, 149, 159, 0.15);
  --shadow-lg: 0 8px 25px rgba(140, 149, 159, 0.2);
  --shadow-xl: 0 16px 40px rgba(140, 149, 159, 0.25);
  --glass-bg: rgba(255, 255, 255, 0.9);
  --glass-bg-hover: rgba(255, 255, 255, 0.95);
  --glass-border: rgba(209, 213, 219, 0.3);
}

/* 📊 Transfer Quality Indicator */
.quality-indicator {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: var(--font-sm);
  margin-top: 0.75rem;
  padding: 0.5rem 1rem;
  background: var(--glass-bg);
  border-radius: var(--radius-full);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

.quality-indicator::before {
  content: '';
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--info);
}

.quality-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  position: relative;
  animation: pulse 2s ease-in-out infinite;
}

.quality-excellent { 
  background: linear-gradient(135deg, #28a745, #20c997);
  box-shadow: 0 0 10px rgba(40, 167, 69, 0.4);
}

.quality-good { 
  background: linear-gradient(135deg, #ffc107, #fd7e14);
  box-shadow: 0 0 10px rgba(255, 193, 7, 0.4);
}

.quality-poor { 
  background: linear-gradient(135deg, #dc3545, #fd5183);
  box-shadow: 0 0 10px rgba(220, 53, 69, 0.4);
}

/* 📄 Modern File Preview */
.file-preview {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin: 1.5rem 0;
  padding: 1.25rem;
  background: var(--glass-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
  transition: var(--transition-smooth);
}

.file-preview:hover {
  background: var(--glass-bg-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.file-preview-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--accent), var(--accent-bright));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: var(--font-bold);
  font-size: 1.4rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.file-preview:hover .file-preview-icon {
  transform: scale(1.05) rotate(5deg);
}

.file-preview .file-preview-body {
  flex: 1;
  min-width: 0;
}
.file-preview img, .file-preview video, .file-preview embed {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-secondary);
}

/* 🔔 Notification Container (bottom-right) */
.notification-root {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 2000;
  display: flex;
  flex-direction: column-reverse; /* newest at bottom */
  align-items: flex-end;
  gap: 10px;
}

/* 🔔 Enhanced Notification System */
.notification {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 1.0rem 1.25rem;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg);
  z-index: 1001;
  max-width: 360px;
  animation: slideInRight 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.notification::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent);
  transition: var(--transition-smooth);
}

@keyframes slideInRight {
  from {
    transform: translateX(120%) scale(0.9);
    opacity: 0;
  }
  to {
    transform: translateX(0) scale(1);
    opacity: 1;
  }
}

.notification.success::before { 
  background: linear-gradient(180deg, var(--accent), var(--accent-bright)); 
}

.notification.warning::before { 
  background: linear-gradient(180deg, var(--warning), #fd7e14); 
}

.notification.error::before { 
  background: linear-gradient(180deg, var(--danger), #fd5183); 
}

.notification .note-icon { font-size: 1.1rem; }
.notification .note-text { flex: 1; line-height: 1.25; }
.notification .note-close {
  background: transparent;
  border: none;
  color: inherit;
  font-size: 1.1rem;
  cursor: pointer;
}

/* Small inline confirmation chip shown after sending actions */
.inline-chip {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  margin-left: .5rem;
  padding: .35rem .6rem;
  border-radius: 999px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: .85rem;
  line-height: 1;
}
.inline-chip .chip-text { line-height: 1; }

/* 📋 Modern Transfer Actions */
.transfer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--border);
}

.transfer-header h3 {
  color: var(--text-primary);
  font-size: 1.25rem;
  font-weight: var(--font-bold);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.transfer-header h3::before { content: none; }

.transfer-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
  align-items: center;
}

/* 🎯 Status Indicators */
.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: var(--font-sm);
  font-weight: var(--font-medium);
  backdrop-filter: blur(10px);
  transition: var(--transition-smooth);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}

.status-indicator::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: var(--transition-smooth);
}

.status-indicator:hover::before {
  left: 100%;
}

.status-active {
  background: linear-gradient(135deg, 
    rgba(35, 134, 54, 0.15), 
    rgba(35, 134, 54, 0.08)
  );
  color: var(--accent);
  border-color: rgba(35, 134, 54, 0.3);
}

.status-active::after {
  content: '●';
  color: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}

.status-warning {
  background: linear-gradient(135deg, 
    rgba(210, 153, 34, 0.15), 
    rgba(210, 153, 34, 0.08)
  );
  color: var(--warning);
  border-color: rgba(210, 153, 34, 0.3);
}

/* Wait screen layout */
.wait-grid { display: grid; grid-template-columns: 1fr; gap: 1.25rem; align-items: start; }
.wait-header h2 { margin: 0 0 .25rem 0; }
.wait-header .muted { margin-bottom: .5rem; display:block; }
.wait-tips { margin: .75rem 0 0 0; padding-left: 1rem; color: var(--text-secondary); }
.wait-tips li { margin: .25rem 0; }
.waiting-radar { position: relative; width: 100%; padding-top: 100%; border-radius: 12px; background: var(--bg-tertiary); border: 1px solid var(--border); overflow: hidden; }
.waiting-radar .ring { position: absolute; top: 50%; left: 50%; width: 10%; height: 10%; transform: translate(-50%, -50%); border-radius: 50%; border: 2px solid rgba(121, 192, 255, 0.35); animation: radar 2.4s ease-out infinite; }
.waiting-radar .ring.r2 { animation-delay: .4s; }
.waiting-radar .ring.r3 { animation-delay: .8s; }
@keyframes radar {
  0% { width: 10%; height: 10%; opacity: .8; }
  100% { width: 140%; height: 140%; opacity: 0; }
}

/* Dropzone icon and helper row */
.file-input-display { position: relative; }
.file-input-display .dz-icon {
  position: absolute;
  left: 50%;
  top: 56px;
  transform: translate(-50%, -50%);
  font-size: 1.25rem;
  opacity: .95;
  pointer-events: none;
}
.file-input-display .file-info { padding-left: 0; text-align: center; margin-top: 48px; }
.transfer-help { display:flex; align-items:center; justify-content:flex-start; gap:.5rem; color: var(--text-secondary); margin: .5rem 0 0.75rem; }
.transfer-help .muted { opacity: .8; }
/* prettier i-badges next to the hint text */
.upload-card .transfer-help { --tooltip-bg: rgba(13,17,23,0.98); --tooltip-border: rgba(110,118,129,0.6); }
.transfer-help .info-badge {
  width: 20px; height: 20px; font-weight: 700;
  border-color: rgba(63,185,80,0.35);
  background: linear-gradient(180deg, rgba(63,185,80,0.08), rgba(63,185,80,0.02));
  color: var(--accent);
  box-shadow: inset 0 0 0 1px rgba(63,185,80,0.08);
}
.transfer-help .info-badge:hover,
.transfer-help .info-badge:focus { background: linear-gradient(180deg, rgba(63,185,80,0.15), rgba(63,185,80,0.06)); border-color: rgba(63,185,80,0.6); color: #fff; }

.status-warning::after { content: none; }

/* 📱 Enhanced Responsive Design */
@media (max-width: 768px) {
  .app {
    padding: max(1rem, env(safe-area-inset-top)) 0.75rem 1rem;
  }
  
  .header h1 {
    font-size: 2rem;
  }
  
  .card {
    padding: 1.5rem;
  }
  
  .join-section {
    flex-direction: column;
    gap: 1rem;
  }
  
  .transfer-stats {
    grid-template-columns: 1fr 1fr;
  }
  
  .modal-content {
    margin: 2rem;
    max-width: calc(100vw - 4rem);
  }
  
  .stats {
    grid-template-columns: 1fr 1fr;
  }
  
  .btn-group {
    justify-content: center;
  }
}

/* ultra small moved to styles.mobile.css */

/* 📋 Modern Dropdown System */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.dropdown-toggle::after {
  content: '▼';
  font-size: 0.7em;
  opacity: 0.7;
  transition: var(--transition);
}

.dropdown.show .dropdown-toggle::after {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-xl);
  min-width: 220px;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px) scale(0.95);
  transition: var(--transition-smooth);
  padding: 0.5rem;
}

.dropdown-menu.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.dropdown-item {
  padding: 0.75rem 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
  transition: var(--transition);
  border-radius: var(--radius-md);
  font-size: var(--font-sm);
  font-weight: var(--font-medium);
  position: relative;
  overflow: hidden;
}

.dropdown-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(35, 134, 54, 0.1), transparent);
  transition: var(--transition-smooth);
}

.dropdown-item:hover {
  background: var(--glass-bg-hover);
  color: var(--accent);
  transform: translateX(2px);
}

.dropdown-item:hover::before {
  left: 100%;
}

.dropdown-item .icon {
  font-size: 1rem;
  width: 1.2rem;
  text-align: center;
}

.dropdown-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 0.5rem 0;
}

/* 🧭 Footer */
.site-footer { border-top:1px solid var(--border); background: linear-gradient(145deg, var(--bg-secondary), var(--bg-tertiary)); margin-top: 2rem; }
.footer-inner { max-width: 1180px; margin: 0 auto; padding: 1rem; display:flex; align-items:center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.footer-inner .brand { font-weight: 800; letter-spacing: -.02em; background: linear-gradient(135deg, var(--accent-bright) 0%, var(--info) 50%, var(--accent) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip:text; }
.footer-nav { display:flex; gap: .75rem; flex-wrap: wrap; }
.footer-nav a { color: var(--text-secondary); text-decoration: none; border:1px solid var(--border); padding:.35rem .6rem; border-radius: 999px; }
.footer-nav a:hover { color: var(--text-primary); border-color: var(--accent); background: var(--bg-hover); }
.footer-inner .copy { color: var(--text-secondary); font-size: .9rem; }

/* 🎛️ Auto Mode Status */
#autoModeStatus {
  font-weight: var(--font-bold);
  color: var(--accent);
  transition: var(--transition);
}

.auto-mode-off #autoModeStatus {
  color: var(--danger);
}

/* �️ Topbar */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1100;
  background: linear-gradient(145deg, var(--bg-secondary), var(--bg-tertiary));
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}
.topbar-inner {
  width: 100%;
  margin: 0;
  padding: calc(0.5rem + env(safe-area-inset-top)) 1rem 0.5rem; /* iOS notch safe area */
  display: flex;
  align-items: center;
  justify-content: flex-end; /* actions to the far right */
  position: relative; /* anchor for centered title */
}
.topbar-title {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  font-size: clamp(1.15rem, 6vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--accent-bright) 0%, var(--info) 50%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  max-width: 60vw;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  pointer-events: none; /* don’t block clicks on buttons */
  z-index: 1;
}
.topbar-actions { display: flex; gap: .5rem; z-index: 2; min-width: 160px; justify-content: flex-end; }

/* Compact icon-first buttons in topbar: show labels on hover/focus only */
.topbar .btn { gap: 0; }
.topbar .btn .btn-text {
  display: inline-block;
  overflow: hidden;
  white-space: nowrap;
  max-width: 0;
  opacity: 0;
  margin-left: 0;
  transition: max-width .25s ease, opacity .18s ease, margin-left .18s ease;
}
.topbar .btn .icon { display:inline-flex; align-items:center; justify-content:center; }
.topbar .btn:hover .btn-text,
.topbar .btn:focus-visible .btn-text {
  max-width: 160px; /* enough for the longest label */
  opacity: 1;
  margin-left: .5rem;
}

/* Idle timer chip inside upload card controls */
#idleTimerChip.timer-chip {
  display: inline-flex; align-items: center; gap: .35rem;
  height: 28px; padding: 0 .6rem; border-radius: 999px;
  border: 1px solid var(--border); color: var(--text-secondary);
  background: var(--bg); font-size: .85rem;
  box-shadow: var(--shadow-sm);
}
#step-connect #idleTimerChip.timer-chip {
  position: absolute;
  top: .75rem;
  right: .75rem;
  margin: 0;
}
#idleTimerChip .icon { font-size: .95rem; line-height: 1; }
#idleTimerChip.warning { border-color: rgba(255, 153, 0, .6); color: #ff9900; background: rgba(255, 153, 0, .08); }
#idleTimerChip.critical { border-color: rgba(255, 71, 87, .7); color: #ff4757; background: rgba(255, 71, 87, .1); }
#idleTimerChip.hidden { display: none; }

/* Ensure cards stay horizontally centered inside the app container */
.app .card { margin-left: auto; margin-right: auto; }
/* Vertically center the hero card on desktop only to avoid hiding content on phones */
@media (min-width: 900px) {
  .app { display: flex; flex-direction: column; }
  .app > .card:not(.hidden) { margin-top: auto; margin-bottom: auto; }
}

/* 💬 Modern P2P Chat Panel */
.chat-panel {
  position: fixed;
  top: 50%;
  right: 1.5rem;
  transform: translateY(-50%);
  width: 340px;
  height: 520px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-xl);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  animation: slideInRight 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  overflow: hidden;
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateY(-50%) translateX(100%) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(-50%) translateX(0) scale(1);
  }
}

.chat-header {
  background: linear-gradient(135deg, var(--accent), var(--accent-bright));
  color: white;
  padding: 1rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: var(--font-bold);
  position: relative;
  overflow: hidden;
}

.chat-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: var(--transition-smooth);
}

.chat-header:hover::before {
  left: 100%;
}

.chat-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1rem;
}

.chat-title::before { content: none; }

.btn-close {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: white;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-md);
  transition: var(--transition);
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-close:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: scale(1.1);
}

/* Topbar-specific tweak for outline button so height matches compact buttons */
.topbar .btn.btn-outline-danger {
  border-width: 1px;
}

.chat-messages {
  flex: 1;
  padding: 1.25rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  background: rgba(255, 255, 255, 0.02);
}

.chat-messages::-webkit-scrollbar {
  width: 4px;
}

.chat-messages::-webkit-scrollbar-track {
  background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 2px;
}

.chat-welcome {
  text-align: center;
  padding: 1.5rem;
  background: var(--glass-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

.chat-welcome span {
  display: block;
  font-weight: var(--font-bold);
  color: var(--accent);
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.chat-welcome span::before { content: none; }

.chat-welcome small {
  color: var(--text-secondary);
  font-size: var(--font-sm);
  line-height: 1.4;
}

.chat-message {
  max-width: 85%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-lg);
  font-size: var(--font-sm);
  line-height: 1.5;
  word-wrap: break-word;
  animation: slideIn 0.3s ease;
  position: relative;
  backdrop-filter: blur(10px);
}

.chat-message.own {
  background: linear-gradient(135deg, var(--accent), var(--accent-bright));
  color: white;
  margin-left: auto;
  border-bottom-right-radius: 0.25rem;
  box-shadow: var(--shadow-sm);
}

.chat-message.peer {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  margin-right: auto;
  border-bottom-left-radius: 0.25rem;
  box-shadow: var(--shadow-sm);
}

.chat-message-time {
  font-size: 0.7rem;
  opacity: 0.7;
  margin-top: 0.25rem;
  font-style: italic;
}

/* Message status ticks appended inline */
.chat-status {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: 6px;
  opacity: 0.9;
}
.tick {
  width: 14px;
  height: 14px;
  display: inline-block;
  line-height: 1;
}
.tick.sent::before { content: '✓'; color: rgba(255,255,255,0.9); }
.tick.delivered::before { content: '✓✓'; color: rgba(255,255,255,0.95); letter-spacing: -2px; }
.tick.seen::before { content: '✓✓'; color: #9ae6b4; letter-spacing: -2px; }

/* Typing indicator below messages */
.chat-typing {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .5rem 1rem;
  border-top: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.02);
}
.typing-dots { display: inline-flex; gap: 4px; }
.typing-dots span {
  width: 6px; height: 6px; border-radius: 50%; background: var(--text-secondary);
  opacity: .6; animation: typingBlink 1.2s infinite ease-in-out;
}
.typing-dots span:nth-child(2) { animation-delay: .15s; }
.typing-dots span:nth-child(3) { animation-delay: .3s; }
@keyframes typingBlink { 0%, 80%, 100% { opacity: .3; transform: translateY(0); } 40% { opacity: 1; transform: translateY(-2px); } }

.chat-input-container {
  padding: 1rem;
  background: var(--glass-bg);
  border-top: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.chat-input-container input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  font-size: var(--font-sm);
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.chat-input-container input:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.15);
  box-shadow: 0 0 0 2px rgba(35, 134, 54, 0.1);
}

.chat-input-container input::placeholder {
  color: var(--text-secondary);
  opacity: 0.8;
}

.chat-send-btn {
  padding: 0.75rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-bright));
  border: none;
  border-radius: var(--radius-full);
  color: white;
  cursor: pointer;
  transition: var(--transition);
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.chat-send-btn:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

.chat-send-btn::before { content: none; }

/* 📱 Enhanced Responsive Chat */
@media (max-width: 768px) {
  .chat-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    flex: 1 1 auto;
    min-width: 0;
    max-width: none;
    width: 100%;
    height: 100%;
    border-radius: 0;
    transform: none;
    animation: slideInFromBottom 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 2000; /* above topbar */
    padding-top: calc(3.25rem + env(safe-area-inset-top)); /* leave room for fixed topbar */
  }
  
  @keyframes slideInFromBottom {
    from {
      opacity: 0;
      transform: translateY(100%);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  .chat-header {
    padding: 1rem 1.25rem;
    position: sticky;
    top: 0;
    z-index: 2001;
  }
  
  .chat-messages {
    padding: 1.5rem;
  }
  
  .chat-input-container {
    padding: 1.5rem;
  }
}

/* 📚 About Modal Styles */
.about-section {
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
}

.about-section h4 {
  color: var(--accent);
  margin-bottom: 1rem;
  font-size: 1.1rem;
  font-weight: var(--font-bold);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.about-section p {
  color: var(--text-primary);
  line-height: 1.6;
  margin-bottom: 0.5rem;
}

.about-section ul {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
}

.about-section li {
  padding: 0.75rem;
  margin-bottom: 0.5rem;
  background: rgba(35, 134, 54, 0.05);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--accent);
  color: var(--text-primary);
  transition: var(--transition);
}

.about-section li:hover {
  background: rgba(35, 134, 54, 0.1);
  transform: translateX(4px);
}

.fun-facts {
  display: grid;
  gap: 1rem;
}

.fun-fact {
  padding: 1rem;
  background: linear-gradient(135deg, 
    rgba(35, 134, 54, 0.1), 
    rgba(88, 166, 255, 0.05)
  );
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  line-height: 1.5;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.fun-fact::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: var(--transition-smooth);
}

.fun-fact:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.fun-fact:hover::before {
  left: 100%;
}

.tech-specs {
  display: grid;
  gap: 0.75rem;
}

.tech-item {
  padding: 0.75rem 1rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--accent-bright);
  color: var(--text-primary);
  font-size: var(--font-sm);
  transition: var(--transition);
}

.tech-item:hover {
  background: rgba(88, 166, 255, 0.05);
  transform: translateX(4px);
}

.dev-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.stat-badge {
  padding: 0.5rem 1rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-bright));
  color: white;
  border-radius: var(--radius-full);
  font-size: var(--font-sm);
  font-weight: var(--font-medium);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.stat-badge:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

/* Mobile optimizations for about modal */
@media (max-width: 768px) {
  .about-section {
    padding: 1rem;
    margin-bottom: 1.5rem;
  }
  
  .dev-stats {
    justify-content: center;
  }
  
  .fun-facts {
    gap: 0.75rem;
  }
  
  .tech-specs {
    gap: 0.5rem;
  }
}