/**
 * style.css — Cypher Speech (Ethereal Silk & Blended Cloud Suite - Wireframe Exact Match)
 * A premium, human-crafted soothing light design system with borderless column blending,
 * luminous silk gradients, and exact structural fidelity to interface.png.
 */

@import url('https://fonts.googleapis.com/css2?family=Geist:wght@300;400;500;600;700;800;900&family=Kode+Mono:wght@400;500;600;700&family=Lekton:ital,wght@0,400;0,700;1,400&family=Space+Grotesk:wght@400;500;600;700&display=swap');
@import url('https://api.fontshare.com/v2/css?f[]=switzer@300,400,500,600,700,800&display=swap');
@import url('https://fonts.cdnfonts.com/css/hubot-sans');
@import url('https://fonts.cdnfonts.com/css/mona-sans');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }

:root {
  /* ── Ethereal Silk & Pearl Alabaster Light Suite ───────────
     Designed for soothing vibes, clean spaciousness, and effortless trust.
     Borders are replaced by diffuse ambient elevation shadows and cloud blending.
     ────────────────────────────────────────────────────────── */

  /* Background & Surfacing */
  --bg:              #F8FAFC;
  --bg-mesh:         radial-gradient(at 0% 0%, rgba(224, 242, 254, 0.75) 0px, transparent 55%),
                     radial-gradient(at 100% 0%, rgba(237, 233, 254, 0.8) 0px, transparent 55%),
                     radial-gradient(at 50% 100%, rgba(243, 232, 255, 0.65) 0px, transparent 55%),
                     #F8FAFC;
  --surface:         rgba(226, 232, 240, 0.55);
  --surface-raised:  rgba(226, 232, 240, 0.65);
  --surface-hover:   rgba(255, 255, 255, 0.9);
  --surface-solid:   #FFFFFF;
  --cloud-border:    rgba(255, 255, 255, 0.85);
  --divider-fade:    linear-gradient(90deg, transparent, rgba(148, 163, 184, 0.18), transparent);

  /* Typography & Contrast */
  --text-primary:    #0F172A;
  --text-secondary:  #475569;
  --text-muted:      #94A3B8;

  /* Luminous Silk Gradients */
  --gradient-primary: linear-gradient(135deg, #6366F1 0%, #3B82F6 50%, #0EA5E9 100%);
  --gradient-accent:  linear-gradient(135deg, #38BDF8 0%, #818CF8 100%);
  --gradient-speaker: linear-gradient(135deg, #8B5CF6 0%, #6366F1 100%);
  --gradient-host:    linear-gradient(135deg, #10B981 0%, #059669 100%);
  
  /* Accent Hex References */
  --accent-indigo:    #6366F1;
  --accent-blue:      #3B82F6;
  --accent-sky:       #0EA5E9;
  --accent-emerald:   #10B981;
  --accent-violet:    #8B5CF6;
  
  /* Ambient Diffuse Elevations (No hard boundaries!) */
  --elevation-cloud:  0 12px 35px -5px rgba(148, 163, 184, 0.14), 0 4px 12px -2px rgba(148, 163, 184, 0.08);
  --elevation-float:  0 20px 55px -10px rgba(99, 102, 241, 0.18), 0 10px 25px -5px rgba(148, 163, 184, 0.1);
  --elevation-modal:  0 30px 90px -15px rgba(71, 85, 105, 0.22), 0 0 1px 1px rgba(255, 255, 255, 0.95);
  --glow-primary:     0 8px 25px -4px rgba(99, 102, 241, 0.35);

  /* Danger */
  --danger:          #E11D48;
  --danger-surface:  rgba(244, 63, 94, 0.1);

  /* Geometry & Timing */
  --font-sans:       'Geist', 'Mona Sans', 'Switzer', system-ui, -apple-system, sans-serif;
  --font-heading:    'Hubot Sans', 'Space Grotesk', 'Switzer', system-ui, -apple-system, sans-serif;
  --font-mono:       'Kode Mono', 'Lekton', 'JetBrains Mono', monospace;
  --radius-sm:       12px;
  --radius-md:       18px;
  --radius-lg:       28px;
  --radius-full:     9999px;
  --ease:            cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout dimensions */
  --sidebar-w:       340px;
  --chat-w:          420px;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-mesh);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* ── Soothing Atmospheric Clouds ──────────────────────────────── */
.bg-glow {
  position: fixed; border-radius: 50%;
  filter: blur(130px); opacity: 0.55;
  z-index: 0; pointer-events: none;
  animation: cloud-float 22s ease-in-out infinite alternate;
}
.bg-glow--1 { width: 650px; height: 650px; background: #E0F2FE; top: -150px; left: -100px; }
.bg-glow--2 { width: 550px; height: 550px; background: #EDE9FE; bottom: -120px; right: -80px; animation-delay: -7s; }
.bg-glow--3 { width: 450px; height: 450px; background: #F3E8FF; top: 35%; left: 45%; opacity: 0.45; animation-delay: -14s; }

@keyframes cloud-float {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(40px, -30px) scale(1.06); }
  100% { transform: translate(-25px, 20px) scale(0.96); }
}

.view { position: relative; z-index: 1; }

/* ── Overlay (Unsupported Browser) ───────────────────────────── */
.overlay {
  position: fixed; inset: 0; z-index: 9999;
  display: flex; align-items: center; justify-content: center;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(20px);
}
.overlay__card {
  text-align: center; max-width: 440px; padding: 48px 36px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--elevation-modal);
  border-radius: var(--radius-lg); border: 1px solid var(--cloud-border);
}
.overlay__icon { font-size: 3rem; margin-bottom: 16px; }
.overlay__card h2 { font-family: var(--font-heading); font-size: 1.5rem; font-weight: 700; margin-bottom: 12px; color: var(--text-primary); }
.overlay__card p  { color: var(--text-secondary); line-height: 1.6; }


/* ═══════════════════════════════════════════════════════════════
   LANDING VIEW (Ethereal Pearl Aesthetic)
   ═══════════════════════════════════════════════════════════════ */
.landing {
  max-width: 800px; margin: 0 auto;
  padding: 80px 24px 70px;
  display: flex; flex-direction: column; align-items: center;
  gap: 52px; min-height: 100vh;
}

.landing__brand { text-align: center; animation: fadeUp 0.8s var(--ease) both; }
.brand-icon { width: 86px; height: 86px; margin: 0 auto 20px; filter: drop-shadow(0 12px 24px rgba(99, 102, 241, 0.35)); transition: transform 0.4s var(--ease), filter 0.4s var(--ease); }
.brand-icon:hover { transform: translateY(-3px) scale(1.05); filter: drop-shadow(0 16px 30px rgba(14, 165, 233, 0.45)); }
.brand-icon svg, .brand-icon img { width: 100%; height: 100%; object-fit: contain; display: block; }

.brand-title {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 5.5vw, 3.5rem); font-weight: 800; letter-spacing: -1.2px;
  background: var(--gradient-primary);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.brand-subtitle { margin-top: 10px; color: var(--text-secondary); font-size: 1.12rem; font-weight: 500; letter-spacing: 0.2px; }

/* Actions */
.landing__actions {
  width: 100%; max-width: 440px; display: flex; flex-direction: column;
  gap: 22px; animation: fadeUp 0.8s 0.15s var(--ease) both;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: var(--font-sans); font-weight: 600; font-size: 0.95rem;
  padding: 14px 28px; border-radius: var(--radius-full);
  cursor: pointer; border: none; text-decoration: none;
  transition: all 0.35s var(--ease); position: relative;
}
.btn--lg   { padding: 17px 34px; font-size: 1.08rem; border-radius: var(--radius-full); }
.btn--sm   { padding: 9px 18px;  font-size: 0.85rem; }
.btn--full { width: 100%; }

.btn--primary {
  background: var(--gradient-primary); color: #FFFFFF;
  box-shadow: var(--glow-primary);
  font-weight: 700; letter-spacing: 0.3px;
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 14px 32px -4px rgba(99, 102, 241, 0.45); }
.btn--primary:active { transform: translateY(0) scale(0.98); }

.btn--secondary {
  background: rgba(255, 255, 255, 0.85); color: var(--text-primary);
  box-shadow: 0 4px 15px rgba(148, 163, 184, 0.1); border: 1px solid rgba(226, 232, 240, 0.9);
}
.btn--secondary:hover { background: #FFFFFF; transform: translateY(-2px); box-shadow: 0 8px 25px rgba(148, 163, 184, 0.18); }

.btn--danger {
  background: var(--danger-surface); color: var(--danger);
  border: 1px solid rgba(244, 63, 94, 0.2);
}
.btn--danger:hover { background: rgba(244, 63, 94, 0.15); transform: translateY(-1px); }

/* Divider */
.divider {
  display: flex; align-items: center; gap: 16px;
  color: var(--text-muted); font-size: 0.8rem;
  text-transform: uppercase; letter-spacing: 1.5px; font-weight: 600;
}
.divider::before, .divider::after { content: ''; flex: 1; height: 1px; background: var(--divider-fade); }

/* Join form */
.join-form { display: flex; gap: 10px; }
.input {
  flex: 1; font-family: var(--font-mono); font-size: 0.9rem;
  padding: 13px 20px;
  background: rgba(255, 255, 255, 0.85); border: 1px solid rgba(203, 213, 225, 0.8);
  border-radius: var(--radius-full); color: var(--text-primary);
  box-shadow: 0 2px 10px rgba(148, 163, 184, 0.05);
  outline: none; transition: all 0.3s var(--ease);
}
.input::placeholder { color: var(--text-muted); font-family: var(--font-sans); }
.input:focus { background: #FFFFFF; border-color: var(--accent-indigo); box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15); }

/* Feature Cards */
.landing__features {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
  width: 100%; animation: fadeUp 0.8s 0.3s var(--ease) both;
}
.feature-card {
  background: var(--surface-raised); backdrop-filter: blur(20px);
  border-radius: var(--radius-lg); padding: 32px 24px; text-align: center;
  box-shadow: var(--elevation-cloud); border: 1px solid var(--cloud-border);
  transition: all 0.4s var(--ease);
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--elevation-float); background: #FFFFFF; }
.feature-card__icon { font-size: 2.2rem; margin-bottom: 14px; display: inline-block; filter: drop-shadow(0 6px 12px rgba(148, 163, 184, 0.15)); }
.feature-card h3 { font-family: var(--font-heading); font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; color: var(--text-primary); }
.feature-card p  { font-size: 0.84rem; color: var(--text-secondary); line-height: 1.6; }


/* ═══════════════════════════════════════════════════════════════
   MEETING ROOM VIEW (Exact Wireframe Replica & Soothing Cloud Suite)
   ═══════════════════════════════════════════════════════════════ */
.room-layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr var(--chat-w);
  height: 100vh; width: 100vw;
  overflow: hidden; padding: 22px; gap: 28px;
}

/* ── Left Column: Dual-Rail Security & Navigation Hub (Reference Replica) ── */
.sidebar-dual {
  background: linear-gradient(170deg, rgba(205, 217, 240, 0.92), rgba(185, 201, 228, 0.96));
  backdrop-filter: blur(32px); -webkit-backdrop-filter: blur(32px);
  border-radius: var(--radius-lg);
  display: flex; flex-direction: row;
  box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.8), 0 16px 42px -8px rgba(71, 85, 105, 0.25);
  border: 1px solid rgba(168, 187, 220, 0.95);
  position: relative; overflow: hidden;
}

/* 1. Far-Left Icon Rail (Reference Match) */
.icon-rail {
  width: 72px; flex-shrink: 0;
  background: rgba(255, 255, 255, 0.35);
  border-right: 1px solid rgba(168, 187, 220, 0.65);
  padding: 20px 0;
  display: flex; flex-direction: column; align-items: center;
  gap: 16px; justify-content: space-between;
}
.rail-brand {
  width: 42px; height: 42px; display: flex; align-items: center; justify-content: center;
  filter: drop-shadow(0 4px 10px rgba(99, 102, 241, 0.22)); cursor: pointer;
  transition: transform 0.3s var(--ease);
}
.rail-brand:hover { transform: scale(1.08); filter: drop-shadow(0 6px 14px rgba(14, 165, 233, 0.4)); }
.rail-brand svg, .rail-brand img { width: 34px; height: 34px; object-fit: contain; display: block; }

.rail-group { display: flex; flex-direction: column; align-items: center; gap: 14px; width: 100%; }
.rail-group--bottom { margin-top: auto; }
.rail-btn {
  width: 42px; height: 42px; border-radius: 50%; border: none;
  background: transparent; color: var(--text-secondary);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: all 0.2s var(--ease);
}
.rail-btn:hover { background: rgba(255, 255, 255, 0.65); color: var(--text-primary); transform: scale(1.06); }
.rail-btn--active {
  background: var(--accent-indigo); color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.38);
}
.rail-btn--active:hover { background: var(--accent-indigo); color: #FFFFFF; transform: scale(1.04); }

.rail-divider { width: 32px; height: 1px; background: rgba(148, 163, 184, 0.38); margin: 4px 0; }

/* Vertical Theme Switch Capsule (Sun / Moon) */
.theme-pill-switch {
  width: 38px; height: 74px; border-radius: 9999px;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.05);
  padding: 4px; display: flex; flex-direction: column; align-items: center; justify-content: space-between;
}
.theme-btn {
  width: 28px; height: 28px; border-radius: 50%; border: none; background: transparent;
  color: var(--text-secondary); display: flex; align-items: center; justify-content: center; cursor: pointer;
  transition: all 0.25s var(--ease);
}
.theme-btn--active {
  background: #FFFFFF; color: var(--text-primary);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.rail-avatar {
  width: 42px; height: 42px; border-radius: 50%;
  background: linear-gradient(135deg, #10B981, #0EA5E9);
  color: #FFFFFF; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.28);
  border: 2px solid #FFFFFF; cursor: pointer; transition: transform 0.2s var(--ease);
}
.rail-avatar:hover { transform: scale(1.06); }

/* 2. Main Navigation Panel */
.sidebar-panel {
  flex: 1; min-width: 0;
  display: flex; flex-direction: column; gap: 16px;
  padding: 22px 16px; overflow-y: auto;
  scroll-behavior: smooth;
}
.sidebar-panel::-webkit-scrollbar { width: 4px; }
.sidebar-panel::-webkit-scrollbar-thumb { background: rgba(148, 163, 184, 0.4); border-radius: 10px; }

/* Top Capsule Selector Button */
.panel-header-capsule {
  background: rgba(255, 255, 255, 0.9); backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.95);
  border-radius: 9999px; padding: 10px 16px;
  display: flex; align-items: center; justify-content: space-between;
  box-shadow: 0 4px 14px rgba(100, 116, 139, 0.12);
  cursor: pointer; transition: all 0.2s var(--ease); flex-shrink: 0;
}
.panel-header-capsule:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(100, 116, 139, 0.18); background: #FFFFFF; }
.capsule-brand-title { font-family: var(--font-heading); font-size: 0.92rem; font-weight: 800; color: var(--text-primary); letter-spacing: 0.3px; }
.capsule-icon-plus {
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--accent-indigo); color: #FFFFFF;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 6px rgba(99, 102, 241, 0.3);
}

/* Navigation Menu List */
.sidebar-nav-list { display: flex; flex-direction: column; gap: 4px; flex-shrink: 0; }
.sidebar-nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 9px 14px; border-radius: 9999px;
  text-decoration: none; color: var(--text-secondary);
  font-family: var(--font-sans); font-size: 0.88rem; font-weight: 600;
  transition: all 0.2s var(--ease);
}
.sidebar-nav-item:hover {
  background: rgba(255, 255, 255, 0.65); color: var(--text-primary);
  transform: translateX(3px);
}
.sidebar-nav-item--active {
  background: var(--accent-indigo) !important; color: #FFFFFF !important;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.32); font-weight: 700;
}
.sidebar-nav-item--active:hover { transform: none; }
.nav-icon { display: flex; align-items: center; justify-content: center; width: 20px; }

.panel-divider { width: 100%; height: 1px; background: rgba(168, 187, 220, 0.65); my-2; flex-shrink: 0; }

.compact-invite { padding: 12px 14px; border-radius: 18px; margin-bottom: 2px; flex-shrink: 0; }
.compact-invite .invite-token__code { font-size: 0.92rem; }
.compact-invite .invite-token__btn { width: 34px; height: 34px; }

/* Secure Invite Token Card */
.invite-token-card {
  background: rgba(255, 255, 255, 0.88); backdrop-filter: blur(20px);
  border-radius: 18px; padding: 14px 16px; display: flex; align-items: center;
  justify-content: space-between; gap: 12px; box-shadow: 0 4px 16px rgba(100, 116, 139, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.95); cursor: pointer; transition: all 0.3s var(--ease);
}
.invite-token-card:hover {
  background: #FFFFFF; transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(99, 102, 241, 0.16);
  border-color: var(--accent-indigo);
}
.invite-token__meta { display: flex; flex-direction: column; gap: 3px; text-align: left; overflow: hidden; }
.invite-token__label { font-size: 0.68rem; font-weight: 800; letter-spacing: 1px; color: var(--text-secondary); transition: color 0.2s var(--ease); }
.invite-token-card:hover .invite-token__label { color: var(--accent-indigo); }
.invite-token__code { font-family: var(--font-mono); font-size: 1.05rem; font-weight: 700; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.invite-token__btn {
  width: 40px; height: 40px; border-radius: 50%; background: linear-gradient(135deg, #6366F1, #0EA5E9);
  color: #FFFFFF; border: none; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25); transition: all 0.3s var(--ease); cursor: pointer; flex-shrink: 0;
}
.invite-token-card:hover .invite-token__btn { transform: scale(1.08) rotate(5deg); box-shadow: 0 6px 18px rgba(99, 102, 241, 0.35); }
.invite-token-card.copied-state { background: var(--accent-emerald); border-color: transparent; box-shadow: 0 6px 20px rgba(16, 185, 129, 0.3); }
.invite-token-card.copied-state .invite-token__label, .invite-token-card.copied-state .invite-token__code { color: #FFFFFF; }
.invite-token-card.copied-state .invite-token__btn { background: #FFFFFF; color: var(--accent-emerald); transform: scale(1); }

/* Roster ListItem Cards */
.roster-list { list-style: none; display: flex; flex-direction: column; gap: 12px; padding: 0; margin: 0; }
.roster-card {
  background: rgba(255, 255, 255, 0.88); backdrop-filter: blur(16px);
  border-radius: 16px; padding: 12px 14px; display: flex; align-items: center; gap: 12px;
  border: 1px solid rgba(255, 255, 255, 0.95); box-shadow: 0 4px 14px rgba(100, 116, 139, 0.1);
  transition: all 0.25s var(--ease); animation: fadeUp 0.35s var(--ease) both;
}
.roster-card:hover { background: #FFFFFF; transform: translateX(3px); box-shadow: 0 6px 18px rgba(148, 163, 184, 0.14); }
.roster-card--you { border-left: 4px solid var(--accent-emerald); }
.roster-card--host .roster-card__avatar { background: linear-gradient(135deg, #ECFDF5, #E0E7FF); border: 1px solid rgba(16, 185, 129, 0.3); }
.roster-card__avatar {
  width: 42px; height: 42px; border-radius: 50%; background: linear-gradient(135deg, #EEF2FF, #F8FAFC);
  display: flex; align-items: center; justify-content: center; font-size: 1.35rem;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.1); border: 1px solid rgba(99, 102, 241, 0.2); flex-shrink: 0;
}
.roster-card__info { display: flex; flex-direction: column; gap: 2px; flex: 1; min-width: 0; text-align: left; }
.roster-card__name { font-size: 0.98rem; font-weight: 800; color: var(--text-primary); line-height: 1.2; }
.roster-card__status { font-size: 0.72rem; font-weight: 700; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.4px; }
.roster-card__indicator { display: flex; align-items: center; justify-content: center; width: 20px; height: 20px; }
.pulse-dot-online {
  width: 9px; height: 9px; border-radius: 50%; background: #10B981;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2); animation: onlinePulse 2s infinite var(--ease);
}
@keyframes onlinePulse { 0%, 100% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.2); opacity: 0.75; } }

/* Roster section & count pills */
.panel-roster-section { display: flex; flex-direction: column; gap: 8px; flex: 1; min-height: 100px; overflow-y: auto; }
.roster-header-row { display: flex; align-items: center; justify-content: space-between; padding: 0 4px; }
.roster-title { font-family: var(--font-heading); font-size: 0.76rem; font-weight: 800; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.8px; }

/* Bottom Governance Action Card (Reference Match) */
.panel-bottom-card {
  margin-top: auto; padding-top: 6px;
  background: rgba(235, 243, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 20px; padding: 14px 12px;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  box-shadow: 0 8px 24px -6px rgba(100, 116, 139, 0.16);
  text-align: center; flex-shrink: 0;
}
.bottom-card__text { font-size: 0.78rem; font-weight: 500; color: var(--text-secondary); line-height: 1.35; }
.bottom-card__text strong { color: var(--text-primary); font-weight: 700; display: block; margin-top: 2px; font-family: var(--font-heading); }

.btn-bottom-action {
  width: 100%; border-radius: 9999px;
  background: #E11D48; color: #FFFFFF;
  border: none; padding: 10px 14px;
  font-family: var(--font-sans); font-size: 0.85rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  box-shadow: 0 4px 14px rgba(225, 29, 72, 0.28);
  cursor: pointer; transition: all 0.25s var(--ease);
}
.btn-bottom-action:hover {
  background: #BE123C; transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(225, 29, 72, 0.42);
}


/* ── Middle Column: Title Banner & Dynamic Opal Sphere Avatars ── */
.center-col {
  display: flex; flex-direction: column; align-items: center; justify-content: flex-start;
  padding: 0 10px; position: relative; overflow-y: auto;
}

.meeting-title-banner {
  background: var(--surface); backdrop-filter: blur(24px);
  border-radius: 20px; padding: 18px 56px; margin: 0 0 36px;
  box-shadow: var(--elevation-cloud); border: 1px solid var(--cloud-border);
  text-align: center; width: 85%; max-width: 460px; flex-shrink: 0;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.meeting-title-banner:hover {
  transform: translateY(-2px); box-shadow: var(--elevation-float);
}
.meeting-title-banner span {
  font-family: var(--font-heading); font-size: 1.5rem; font-weight: 700;
  color: var(--text-primary); letter-spacing: -0.4px;
}

/* Responsive Dynamic Avatar Flex Area (Centers 1, 2, or more connected peers gracefully) */
.avatar-grid {
  display: flex; flex-wrap: wrap; justify-content: center; align-items: center;
  align-content: center; gap: 48px 60px; width: 100%; max-width: 660px;
  margin: auto 0; padding: 10px 0 40px; flex: 1;
}

.user-avatar {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
  position: relative; cursor: default; transition: all 0.4s var(--ease);
  animation: scaleUp 0.5s var(--ease) both;
}

.avatar-sphere-wrapper {
  width: 175px; height: 175px; position: relative;
  display: flex; align-items: center; justify-content: center;
}

.avatar-aura {
  position: absolute; inset: -15px; border-radius: 50%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.25) 0%, transparent 70%);
  opacity: 0; transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
  z-index: 1; pointer-events: none;
}
.user-avatar:hover .avatar-aura { opacity: 0.7; transform: scale(1.15); }
.user-avatar.is-speaking .avatar-aura { opacity: 1; transform: scale(1.3); }

.avatar-sphere {
  width: 175px; height: 175px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.75); backdrop-filter: blur(28px);
  border: 1px solid var(--cloud-border); box-shadow: var(--elevation-cloud);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  position: relative; z-index: 2; transition: all 0.4s var(--ease);
}
.user-avatar--host .avatar-sphere {
  background: linear-gradient(135deg, rgba(255,255,255,0.92) 0%, rgba(240,253,244,0.75) 100%);
  border: 2px solid rgba(16, 185, 129, 0.45);
  box-shadow: 0 12px 36px rgba(16, 185, 129, 0.12), var(--elevation-cloud);
}
.user-avatar--peer .avatar-sphere {
  background: linear-gradient(135deg, rgba(255,255,255,0.88) 0%, rgba(238,242,255,0.75) 100%);
  border: 2px solid rgba(99, 102, 241, 0.35);
}

.avatar-icon {
  font-size: 3.4rem; filter: drop-shadow(0 6px 12px rgba(99, 102, 241, 0.18));
  transition: transform 0.4s var(--ease);
}
.user-avatar:hover .avatar-sphere {
  transform: translateY(-6px) scale(1.03);
  background: #FFFFFF; box-shadow: var(--elevation-float);
}
.user-avatar:hover .avatar-icon { transform: scale(1.15) rotate(-5deg); }

/* Acoustic Ripple Rings for Active Speaker Animation */
.ripple-ring {
  position: absolute; inset: 0; border-radius: 50%;
  border: 2px solid var(--accent-indigo); opacity: 0;
  pointer-events: none; z-index: 1;
}
.user-avatar.is-speaking .avatar-sphere {
  background: #FFFFFF; border-color: var(--accent-indigo);
  box-shadow: 0 0 0 10px rgba(99, 102, 241, 0.16), 0 0 0 22px rgba(99, 102, 241, 0.06), var(--glow-primary);
  transform: translateY(-4px) scale(1.05);
}
.user-avatar.is-speaking .ripple-1 { animation: acousticRipple 2s cubic-bezier(0, 0.2, 0.8, 1) infinite; }
.user-avatar.is-speaking .ripple-2 { animation: acousticRipple 2s cubic-bezier(0, 0.2, 0.8, 1) infinite 0.6s; }
.user-avatar.is-speaking .ripple-3 { animation: acousticRipple 2s cubic-bezier(0, 0.2, 0.8, 1) infinite 1.2s; }

@keyframes acousticRipple {
  0% { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(1.6); opacity: 0; }
}

/* Sound Waves within Avatar Sphere */
.avatar-soundwaves {
  position: absolute; bottom: 22px; display: none; gap: 4px; align-items: center;
  background: rgba(255, 255, 255, 0.9); padding: 4px 10px; border-radius: 999px;
  box-shadow: 0 4px 10px rgba(99, 102, 241, 0.2); border: 1px solid rgba(99, 102, 241, 0.3);
  z-index: 3;
}
.user-avatar.is-speaking .avatar-soundwaves { display: flex; animation: fadeUp 0.25s var(--ease); }
.avatar-soundwaves span {
  width: 3.5px; height: 10px; background: var(--accent-indigo); border-radius: 4px;
  animation: wave 0.8s ease-in-out infinite alternate;
}
.avatar-soundwaves span:nth-child(2) { animation-delay: 0.15s; }
.avatar-soundwaves span:nth-child(3) { animation-delay: 0.3s; }
.avatar-soundwaves span:nth-child(4) { animation-delay: 0.1s; }
.avatar-soundwaves span:nth-child(5) { animation-delay: 0.25s; }

@keyframes wave {
  0% { height: 6px; }
  100% { height: 22px; }
}

/* Avatar Label & Luxury Role Badge */
.avatar-meta {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  text-align: center; z-index: 2;
}
.avatar-name {
  font-family: var(--font-sans); font-size: 1.25rem; font-weight: 800;
  color: var(--text-primary); letter-spacing: -0.3px;
}
.avatar-badge {
  font-family: var(--font-sans); font-size: 0.76rem; font-weight: 700;
  letter-spacing: 0.8px; text-transform: uppercase; padding: 4px 14px;
  border-radius: var(--radius-full);
  background: rgba(241, 245, 249, 0.9); color: var(--text-secondary);
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: 0 2px 6px rgba(148, 163, 184, 0.08);
  transition: all 0.3s var(--ease);
}
.user-avatar--host .avatar-badge {
  background: linear-gradient(135deg, rgba(236, 253, 245, 0.95), rgba(224, 231, 255, 0.95));
  color: #047857; border-color: rgba(110, 231, 183, 0.5);
}
.user-avatar--peer .avatar-badge {
  background: linear-gradient(135deg, rgba(238, 242, 255, 0.95), rgba(241, 245, 249, 0.95));
  color: var(--accent-indigo); border-color: rgba(165, 180, 252, 0.5);
}

/* Security Badge & Interactive Pill Polish */
.security-badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.78rem; font-weight: 700; color: #047857;
  background: rgba(236, 253, 245, 0.9); border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 5px 14px; border-radius: var(--radius-full); margin-bottom: 6px;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.1);
}



/* ── Right Column: Connected People / Chat (Wireframe match) ───── */
.chat-col {
  background: linear-gradient(170deg, rgba(205, 217, 240, 0.88), rgba(188, 204, 230, 0.92));
  backdrop-filter: blur(32px); -webkit-backdrop-filter: blur(32px);
  border-radius: var(--radius-lg); display: flex; flex-direction: column;
  box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.75), 0 16px 42px -8px rgba(71, 85, 105, 0.22);
  border: 1px solid rgba(168, 187, 220, 0.9);
  overflow: hidden; position: relative; padding: 26px 20px 22px;
}

.chat-header {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding-bottom: 16px; margin-bottom: 8px;
}
.chat-header__title {
  font-family: var(--font-heading); font-size: 1.45rem; font-weight: 700;
  color: var(--text-primary); letter-spacing: -0.4px;
}
.chat-header__status { display: flex; align-items: center; gap: 8px; }
.status-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent-emerald); box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.15); }
.status-dot--waiting { background: #94A3B8; box-shadow: 0 0 0 4px rgba(148, 163, 184, 0.15); }
.status-text { font-size: 0.82rem; font-weight: 600; color: var(--text-secondary); }

/* Messages Area */
.chat-messages {
  flex: 1; overflow-y: auto; padding: 10px 4px;
  display: flex; flex-direction: column; gap: 16px;
}

.empty-state { text-align: center; margin: auto; padding: 40px 20px; color: #475569; font-weight: 500; }
.empty-state__sub { font-size: 0.88rem; color: #64748B; margin-top: 6px; }
.empty-state__icon { font-size: 3rem; margin-bottom: 12px; filter: drop-shadow(0 8px 16px rgba(148, 163, 184, 0.15)); }

/* Wireframe Message Row: cipher text rectangle on left, stacked R / T circles on right */
.msg-row {
  display: flex; flex-direction: column; gap: 6px;
  animation: fadeUp 0.3s var(--ease) both;
}
.msg__meta { font-size: 0.78rem; font-weight: 600; color: var(--text-muted); padding-left: 10px; }
.msg-row--you .msg__meta { color: var(--accent-blue); }

.msg__main-flex { display: flex; align-items: stretch; gap: 12px; }
.msg__bubble {
  flex: 1; background: rgba(248, 250, 255, 0.95); backdrop-filter: blur(14px);
  border-radius: 18px; padding: 18px 20px; box-shadow: 0 4px 16px rgba(100, 116, 139, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.95); display: flex; align-items: center;
}
.msg-row--you .msg__bubble { background: #FFFFFF; }
.msg__cipher-text, .msg__plain-text {
  font-family: var(--font-mono); font-size: 0.94rem; color: var(--text-primary);
  line-height: 1.5; word-break: break-word;
}
.msg__plain-text { font-family: var(--font-sans); font-weight: 600; color: var(--accent-indigo); }

/* Stacked R / T circle action buttons exactly matching wireframe */
.msg__actions-stack {
  display: flex; flex-direction: column; justify-content: space-around; gap: 8px; flex-shrink: 0;
}
.msg-action-btn {
  width: 36px; height: 36px; border-radius: 50%; border: 1px solid rgba(203, 213, 225, 0.9);
  background: rgba(255, 255, 255, 0.85); color: var(--text-primary);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-sans); font-size: 0.84rem; font-weight: 700;
  cursor: pointer; box-shadow: 0 2px 8px rgba(148, 163, 184, 0.12); transition: all 0.2s var(--ease);
}
.msg-action-btn:hover { background: var(--gradient-primary); color: #FFFFFF; transform: scale(1.1); border-color: transparent; }

/* ── Bottom Input Row: Mic Circle | textbox pill | Lock Circle (Wireframe match) ── */
.chat-input-bar {
  display: flex; align-items: center; gap: 10px;
  padding-top: 16px; margin-top: auto; width: 100%;
}
.input--textbox {
  flex: 1 1 0%; min-width: 0; width: 100%; height: 50px; background: #FFFFFF; border-radius: var(--radius-full);
  padding: 0 20px; font-size: 1.02rem; font-weight: 500; color: var(--text-primary);
  box-shadow: 0 4px 15px rgba(148, 163, 184, 0.1); border: 1px solid rgba(226, 232, 240, 0.9);
}
.input--textbox::placeholder { color: #64748B; font-weight: 400; }
.input--textbox:focus { border-color: var(--accent-indigo); box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.18); }

.circle-btn {
  width: 48px; height: 48px; border-radius: 50%; border: 1px solid rgba(226, 232, 240, 0.9);
  background: #FFFFFF; display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: all 0.3s var(--ease); flex-shrink: 0;
  box-shadow: 0 4px 15px rgba(148, 163, 184, 0.12); color: var(--accent-blue);
}
.circle-btn:hover { background: var(--gradient-primary); color: #FFFFFF; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3); border-color: transparent; }
.circle-btn--mic.active { background: var(--gradient-primary); color: #FFFFFF; box-shadow: 0 8px 25px rgba(99, 102, 241, 0.45); animation: ethereal-pulse 1.2s infinite; }
.circle-btn--encrypt { color: var(--accent-indigo); }
.circle-btn--encrypt.active { background: var(--gradient-primary); color: #FFFFFF; transform: scale(0.92); }


/* ── Toast Notification ──────────────────────────────────────── */
.toast {
  position: fixed; bottom: 30px; left: 50%;
  transform: translateX(-50%) translateY(20px);
  padding: 14px 28px;
  background: rgba(15, 23, 42, 0.88); color: #FFFFFF; font-weight: 600;
  border-radius: var(--radius-full); backdrop-filter: blur(16px);
  box-shadow: 0 15px 35px -5px rgba(15, 23, 42, 0.3);
  font-size: 0.9rem; z-index: 9999; opacity: 0;
  transition: all 0.35s var(--ease); pointer-events: none;
}
.toast.visible { opacity: 1; transform: translateX(-50%) translateY(0); }


/* ── Privacy Modals (Exquisite Frosted Crystal) ──────────────── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(14px);
  z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  padding: 20px; animation: fadeIn 0.25s var(--ease);
}
.modal-card {
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(32px);
  border: 1px solid var(--cloud-border);
  box-shadow: var(--elevation-modal);
  border-radius: 28px; padding: 36px 32px;
  max-width: 440px; width: 100%; text-align: center;
  animation: scaleUp 0.3s var(--ease);
}
.modal-card__icon { font-size: 2.8rem; margin-bottom: 16px; filter: drop-shadow(0 8px 16px rgba(99, 102, 241, 0.2)); }
.modal-card__title { font-family: var(--font-heading); font-size: 1.35rem; font-weight: 800; color: var(--text-primary); margin-bottom: 8px; }
.modal-card__sub { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: 24px; }
.modal-card__input {
  width: 100%; margin-bottom: 24px; text-align: center;
  font-size: 1.25rem; letter-spacing: 4px; font-weight: 700;
  background: #FFFFFF; color: var(--text-primary);
  border: 2px solid rgba(226, 232, 240, 0.9);
  border-radius: var(--radius-md); padding: 14px;
}
.modal-card__input::placeholder {
  letter-spacing: normal;
  font-size: 0.95rem;
  font-weight: 500;
  color: #94A3B8;
}
.modal-card__input:focus { border-color: var(--accent-indigo); box-shadow: 0 0 0 5px rgba(99, 102, 241, 0.15); }
.modal-card__actions { display: flex; gap: 14px; justify-content: center; }
.modal-card__actions .btn { flex: 1; border-radius: var(--radius-full); }


/* ── Animations & Scrollbar ───────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes scaleUp { from { opacity: 0; transform: scale(0.94); } to { opacity: 1; transform: scale(1); } }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(148, 163, 184, 0.4); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: rgba(148, 163, 184, 0.7); }

/* ── Sidebar Functional Tab Panes & Interactive Settings ── */
.sidebar-tab-pane {
  display: flex; flex-direction: column; gap: 14px; flex: 1; min-height: 0;
  animation: fadeIn 0.2s var(--ease) both;
}
.sidebar-tab-pane--active { display: flex !important; }
.settings-card-group { display: flex; flex-direction: column; gap: 14px; }

.settings-card {
  background: rgba(255, 255, 255, 0.82); backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.95);
  border-radius: 20px; padding: 14px 16px;
  display: flex; flex-direction: column; gap: 8px;
  box-shadow: 0 4px 14px rgba(100, 116, 139, 0.1);
}
.settings-label { font-family: var(--font-heading); font-size: 0.85rem; font-weight: 800; color: var(--text-primary); text-transform: uppercase; letter-spacing: 0.5px; }
.settings-desc { font-size: 0.78rem; font-weight: 500; color: var(--text-secondary); line-height: 1.4; }

.btn-toggle-pill {
  border-radius: 9999px; padding: 8px 16px; border: 1px solid rgba(148, 163, 184, 0.4);
  background: #F1F5F9; color: var(--text-secondary); font-weight: 700; font-size: 0.85rem;
  cursor: pointer; transition: all 0.25s var(--ease); display: inline-flex; align-items: center; justify-content: center; width: 100%;
}
.btn-toggle-pill--active {
  background: linear-gradient(135deg, #10B981, #059669); color: #FFFFFF;
  border-color: #10B981; box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
}

.settings-select {
  width: 100%; padding: 8px 12px; border-radius: 12px; border: 1px solid rgba(148, 163, 184, 0.4);
  background: #FFFFFF; font-family: var(--font-sans); font-size: 0.85rem; font-weight: 600; color: var(--text-primary);
  cursor: pointer; outline: none;
}

.pill-radio-group, .ttl-selector-group { display: flex; flex-direction: column; gap: 6px; }
.pill-radio, .btn-ttl {
  border-radius: 12px; padding: 8px 12px; border: 1px solid rgba(148, 163, 184, 0.3);
  background: #FFFFFF; color: var(--text-secondary); font-size: 0.82rem; font-weight: 700;
  cursor: pointer; transition: all 0.2s var(--ease); text-align: center;
}
.pill-radio--active, .btn-ttl--active {
  background: var(--accent-indigo); color: #FFFFFF; border-color: var(--accent-indigo);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.28);
}

.cipher-tag {
  background: rgba(99, 102, 241, 0.1); color: var(--accent-indigo);
  font-family: var(--font-mono); font-size: 0.82rem; font-weight: 700; padding: 8px 10px;
  border-radius: 10px; border: 1px solid rgba(99, 102, 241, 0.25); text-align: center;
}

.fingerprint-box {
  display: block; background: #0F172A; color: #38BDF8; font-family: var(--font-mono); font-size: 0.76rem; font-weight: 700;
  padding: 10px; border-radius: 12px; word-break: break-all; box-shadow: inset 0 2px 6px rgba(0,0,0,0.4);
}

.stats-row { display: flex; gap: 10px; }
.stat-box {
  flex: 1; background: #EEF2FF; border-radius: 14px; padding: 10px; text-align: center; border: 1px solid rgba(99, 102, 241, 0.2);
}
.stat-box span { display: block; font-family: var(--font-heading); font-size: 1.35rem; font-weight: 800; color: var(--accent-indigo); }
.stat-box small { font-size: 0.72rem; font-weight: 700; color: var(--text-secondary); text-transform: uppercase; }

.ttl-status-card {
  background: #FEF2F2; border: 1px solid #FCA5A5; border-radius: 16px; padding: 10px 12px;
  display: flex; align-items: center; gap: 10px; font-size: 0.78rem; font-weight: 600; color: #991B1B;
}

/* Ephemeral Message Countdown Badge */
.msg-ttl-badge {
  display: inline-flex; align-items: center; gap: 4px; font-size: 0.72rem; font-weight: 800;
  color: #DC2626; background: #FEE2E2; padding: 2px 8px; border-radius: 999px; margin-left: 8px;
}
@keyframes destructMessage {
  0% { opacity: 1; transform: scale(1); filter: blur(0px); }
  50% { opacity: 0.5; transform: scale(0.95) translateY(-5px); filter: blur(4px); }
  100% { opacity: 0; height: 0; margin: 0; padding: 0; overflow: hidden; transform: scale(0.8); }
}
.msg-row--destroying { animation: destructMessage 0.6s var(--ease) forwards !important; pointer-events: none; }

/* ── Obsidian Cypherpunk Dark Luminescence Theme ── */
body.theme-obsidian {
  --text-primary: #F8FAFC;
  --text-secondary: #CBD5E1;
  --text-muted: #94A3B8;
  --surface: rgba(30, 41, 59, 0.7);
  --surface-raised: rgba(51, 65, 85, 0.8);
  --surface-solid: #1E293B;
  --cloud-border: rgba(148, 163, 184, 0.25);
  background: radial-gradient(ellipse at top right, rgba(30, 41, 59, 0.95), rgba(15, 23, 42, 1)), #0B0F19;
  color: #F8FAFC;
}
body.theme-obsidian .sidebar-dual,
body.theme-obsidian .chat-col {
  background: linear-gradient(170deg, rgba(20, 29, 47, 0.95), rgba(11, 15, 25, 0.98));
  border-color: rgba(71, 85, 105, 0.7); 
  box-shadow: 0 16px 42px -8px rgba(0, 0, 0, 0.7);
}
body.theme-obsidian .icon-rail { 
  background: rgba(11, 15, 25, 0.85); 
  border-right-color: rgba(71, 85, 105, 0.6); 
}
body.theme-obsidian .panel-header-capsule,
body.theme-obsidian .invite-token-card,
body.theme-obsidian .roster-card,
body.theme-obsidian .settings-card,
body.theme-obsidian .meeting-title-banner {
  background: rgba(30, 41, 59, 0.85); 
  border-color: rgba(100, 116, 139, 0.7); 
  color: #F8FAFC;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
}

/* Complete Text & Font Luminescence Overrides */
body.theme-obsidian .meeting-title-banner,
body.theme-obsidian .meeting-title-banner * {
  color: #F8FAFC !important;
  font-weight: 700;
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}
body.theme-obsidian .chat-header__title,
body.theme-obsidian .roster-title,
body.theme-obsidian .avatar-name,
body.theme-obsidian .capsule-brand-title,
body.theme-obsidian .roster-card__name,
body.theme-obsidian .title-text {
  color: #F8FAFC !important;
}
body.theme-obsidian .empty-state,
body.theme-obsidian .empty-state p,
body.theme-obsidian .empty-state__sub {
  color: #E2E8F0 !important;
}
body.theme-obsidian .settings-desc,
body.theme-obsidian .bottom-card__text {
  color: #E2E8F0 !important;
  font-weight: 500;
}
body.theme-obsidian .settings-label {
  color: #38BDF8 !important;
}
body.theme-obsidian .status-text,
body.theme-obsidian .invite-token__label {
  color: #CBD5E1 !important;
}
body.theme-obsidian .invite-token__code {
  color: #F8FAFC !important;
}

/* Navigation & Icons Contrast */
body.theme-obsidian .sidebar-nav-item {
  color: #E2E8F0;
  font-weight: 600;
}
body.theme-obsidian .sidebar-nav-item:hover {
  color: #FFFFFF;
  background: rgba(51, 65, 85, 0.7);
}
body.theme-obsidian .sidebar-nav-item--active {
  color: #38BDF8 !important;
  background: rgba(14, 165, 233, 0.2) !important;
  border-color: rgba(56, 189, 248, 0.5) !important;
}
body.theme-obsidian .rail-btn {
  color: #E2E8F0;
}
body.theme-obsidian .rail-btn:hover {
  color: #FFFFFF;
  background: rgba(51, 65, 85, 0.8);
}
body.theme-obsidian .rail-btn--active {
  color: #38BDF8 !important;
  background: rgba(56, 189, 248, 0.2) !important;
  border: 1px solid rgba(56, 189, 248, 0.5);
}
body.theme-obsidian .count-pill {
  background: rgba(56, 189, 248, 0.2);
  color: #38BDF8;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

/* Buttons & Interactive Elements */
body.theme-obsidian .pill-radio, 
body.theme-obsidian .btn-ttl {
  background: rgba(30, 41, 59, 0.9);
  border: 1px solid rgba(100, 116, 139, 0.6);
  color: #E2E8F0;
}
body.theme-obsidian .pill-radio:hover, 
body.theme-obsidian .btn-ttl:hover {
  background: rgba(51, 65, 85, 0.95);
  color: #FFFFFF;
}
body.theme-obsidian .pill-radio--active, 
body.theme-obsidian .btn-ttl--active {
  background: linear-gradient(135deg, #0EA5E9, #6366F1) !important;
  color: #FFFFFF !important;
  border-color: #38BDF8 !important;
  box-shadow: 0 4px 14px rgba(14, 165, 233, 0.4);
}
body.theme-obsidian .settings-select {
  background: #1E293B;
  border: 1px solid rgba(100, 116, 139, 0.7);
  color: #F8FAFC;
}
body.theme-obsidian .btn-bottom-action {
  background: rgba(225, 29, 72, 0.2);
  color: #FDA4AF;
  border: 1px solid rgba(244, 63, 94, 0.5);
}
body.theme-obsidian .btn-bottom-action:hover {
  background: #E11D48;
  color: #FFFFFF;
}

/* Chat & Messages in Dark Mode */
body.theme-obsidian .msg__bubble { 
  background: rgba(30, 41, 59, 0.95); 
  border-color: rgba(100, 116, 139, 0.7); 
  color: #F8FAFC;
}
body.theme-obsidian .msg-row--you .msg__bubble { 
  background: rgba(51, 65, 85, 0.95); 
  border-color: rgba(129, 140, 248, 0.6);
}
body.theme-obsidian .msg__cipher-text { 
  color: #E2E8F0; 
}
body.theme-obsidian .msg-action-btn {
  background: rgba(30, 41, 59, 0.9);
  border-color: rgba(100, 116, 139, 0.7);
  color: #F8FAFC;
}
body.theme-obsidian .msg-action-btn:hover {
  background: #38BDF8;
  color: #0F172A;
}
body.theme-obsidian .chat-input-bar {
  background: rgba(15, 23, 42, 0.95);
  border-top-color: rgba(71, 85, 105, 0.7);
}
body.theme-obsidian #input-text,
body.theme-obsidian .input {
  background: rgba(30, 41, 59, 0.9);
  border: 1px solid rgba(100, 116, 139, 0.7);
  color: #F8FAFC;
}
body.theme-obsidian #input-text::placeholder {
  color: #94A3B8;
}
body.theme-obsidian .btn-mic,
body.theme-obsidian .btn-encrypt-toggle {
  background: rgba(30, 41, 59, 0.9);
  border: 1px solid rgba(100, 116, 139, 0.7);
  color: #F8FAFC;
}
body.theme-obsidian .btn-mic:hover,
body.theme-obsidian .btn-encrypt-toggle:hover {
  background: rgba(51, 65, 85, 0.95);
  color: #38BDF8;
}
body.theme-obsidian .theme-pill-switch { 
  background: rgba(15, 23, 42, 0.9); 
  border: 1px solid rgba(71, 85, 105, 0.8); 
}
body.theme-obsidian .theme-btn { color: #94A3B8; }
body.theme-obsidian .theme-btn--active { 
  background: #38BDF8; 
  color: #0F172A; 
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.5);
}

/* ── Message Edit & Reactions Suite ────────────────────────── */
.msg-meta-edit {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 500;
  margin-left: 8px;
  transition: color 0.2s var(--ease);
  display: inline-flex;
  align-items: center;
}
.msg-meta-edit:hover { color: var(--accent-indigo); }

.edited-tag {
  font-style: italic;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin: 0 4px;
}

.msg__edit-box {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}
.msg-edit-input {
  width: 100%;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--cloud-border);
  background: var(--surface-solid);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
}
.msg-edit-actions {
  display: flex;
  gap: 6px;
  justify-content: flex-end;
}
.btn-edit-save, .btn-edit-cancel {
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background 0.2s var(--ease);
}
.btn-edit-save { background: var(--gradient-primary); color: #fff; }
.btn-edit-cancel { background: var(--surface-raised); color: var(--text-secondary); border: 1px solid var(--cloud-border); }

.msg__reactions-bar {
  display: flex;
  gap: 6px;
  margin-top: 4px;
  padding-left: 4px;
}
.reaction-chip {
  background: var(--surface);
  border: 1px solid var(--cloud-border);
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 0.75rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.2s var(--ease);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}
.reaction-chip:hover {
  background: var(--surface-hover);
  transform: translateY(-1px);
}
.reaction-chip.active-chip {
  background: var(--gradient-accent);
  color: #0F172A;
  border-color: var(--accent-sky);
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(14, 165, 233, 0.25);
}

body.theme-obsidian .msg-meta-edit:hover { color: #38BDF8; }
body.theme-obsidian .msg-edit-input {
  background: #1E293B;
  border-color: #475569;
  color: #F8FAFC;
}
body.theme-obsidian .btn-edit-cancel {
  background: #334155;
  color: #E2E8F0;
  border-color: #475569;
}
body.theme-obsidian .reaction-chip {
  background: rgba(30, 41, 59, 0.85);
  border-color: rgba(100, 116, 139, 0.6);
  color: #CBD5E1;
}
body.theme-obsidian .reaction-chip:hover {
  background: rgba(51, 65, 85, 0.95);
  border-color: #38BDF8;
}
body.theme-obsidian .reaction-chip.active-chip {
  background: linear-gradient(135deg, #0EA5E9, #6366F1);
  color: #FFFFFF;
  border-color: #38BDF8;
}

/* ── Responsive Mobile & Tablet Architecture ───────────────────── */
.center-header-bar {
  width: 100%; display: flex; align-items: center; justify-content: center; position: relative;
}
.mobile-only-btn {
  display: none !important;
}
.mobile-close-btn {
  margin: 0 0 16px; width: 100%; padding: 12px 16px; font-size: 0.95rem;
  background: var(--surface-solid); color: var(--text-primary);
  border: 1px solid var(--cloud-border); box-shadow: var(--elevation-cloud);
  border-radius: var(--radius-sm);
}
body.theme-obsidian .mobile-close-btn {
  background: #1E293B; color: #F8FAFC; border-color: #334155;
}

@media (max-width: 1180px) {
  :root { --sidebar-w: 280px; --chat-w: 360px; }
  .avatar-sphere-wrapper, .avatar-sphere { width: 135px; height: 135px; }
  .avatar-icon { font-size: 2.4rem; }
  .avatar-grid { gap: 24px 30px; }
  .meeting-title-banner { width: 95%; padding: 14px 28px; }
}

@media (max-width: 980px) {
  /* Transform 3-Column Desktop Grid into a Native Mobile Stack */
  .room-layout {
    grid-template-columns: 1fr !important;
    display: flex !important; flex-direction: column !important;
    height: 100dvh; width: 100vw;
    padding: 0; gap: 0; overflow: hidden;
  }
  
  /* Enable Mobile Navigation Controls */
  .mobile-only-btn {
    display: inline-flex !important; align-items: center; justify-content: center; gap: 6px;
    padding: 9px 15px; border-radius: var(--radius-full);
    font-family: var(--font-sans); font-weight: 700; font-size: 0.9rem;
    background: var(--gradient-primary); color: #FFFFFF;
    border: none; cursor: pointer; box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
    flex-shrink: 0; transition: transform 0.2s var(--ease);
  }
  .mobile-only-btn:active { transform: scale(0.95); }
  
  /* Slide-Over Security & Roster Sheet (Hidden off-screen until triggered) */
  .sidebar-dual {
    position: fixed !important; top: 0; left: 0;
    width: 100vw; height: 100dvh; z-index: 9999;
    border-radius: 0; border: none;
    transform: translateX(-100%);
    transition: transform 0.38s cubic-bezier(0.16, 1, 0.3, 1);
    background: var(--bg); display: flex !important; flex-direction: row;
  }
  .sidebar-dual.mobile-open {
    transform: translateX(0);
    box-shadow: 20px 0 60px rgba(15, 23, 42, 0.5);
  }
  
  /* Top Chamber Banner & Mini Active Speaker Bar */
  .center-col {
    display: flex !important; flex-direction: row; align-items: center; justify-content: space-between;
    padding: 10px 16px; min-height: 70px; max-height: 78px; width: 100%;
    background: var(--surface-raised); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--cloud-border); overflow: hidden; gap: 12px;
    position: relative; z-index: 10;
  }
  .center-header-bar {
    width: auto; justify-content: flex-start; gap: 12px; flex: 1; min-width: 0;
  }
  .meeting-title-banner {
    width: auto; max-width: 100%; margin: 0; padding: 8px 14px; border-radius: var(--radius-sm);
    box-shadow: none; border: 1px solid rgba(148, 163, 184, 0.25);
  }
  .meeting-title-banner span {
    font-size: 1.05rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block;
  }
  
  /* Active Participant Avatars shrink into compact live speaking indicator chips inside top banner */
  .avatar-grid {
    flex: 0 0 auto; margin: 0; padding: 0; gap: 8px; max-width: 45%;
    justify-content: flex-end; flex-wrap: nowrap; overflow-x: auto;
  }
  .user-avatar { gap: 3px; }
  .avatar-sphere-wrapper, .avatar-sphere { width: 44px; height: 44px; }
  .avatar-icon { font-size: 1.35rem; }
  .user-badge { padding: 2px 6px; font-size: 0.68rem; max-width: 75px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .speaking-ring { border-width: 2px; }
  
  /* Main Voice & Chat Chamber fills remaining viewport */
  .chat-col {
    flex: 1 !important; width: 100%; height: calc(100dvh - 70px);
    border-radius: 0; border: none; box-shadow: none;
    display: flex !important; flex-direction: column; background: var(--surface);
    overflow: hidden;
  }
  .chat-header {
    padding: 10px 14px; flex-wrap: wrap; gap: 6px;
  }
  .chat-header__title { font-size: 1.1rem; }
  .security-badge { font-size: 0.74rem; padding: 4px 8px; }
  
  /* Ergonomic Input Bar with Prevent-Zoom inputs for iOS/Android */
  .chat-input-bar {
    padding: 10px 12px; gap: 8px; min-height: 64px;
    background: var(--surface-raised); border-top: 1px solid var(--cloud-border);
  }
  .circle-btn { width: 44px; height: 44px; flex-shrink: 0; }
  .input--textbox { font-size: 16px; padding: 12px 14px; min-width: 0; }
}

@media (max-width: 640px) {
  /* Landing Page Mobile Adjustments */
  .landing { padding: 36px 16px 60px; gap: 32px; min-height: 100dvh; }
  .brand-icon { width: 72px; height: 72px; margin-bottom: 14px; }
  .brand-title { font-size: clamp(2.2rem, 9vw, 2.9rem); letter-spacing: -0.8px; }
  .brand-subtitle { font-size: 0.98rem; padding: 0 10px; }
  .landing__features { grid-template-columns: 1fr; gap: 14px; max-width: 100%; }
  .feature-card { padding: 24px 18px; }
  .landing__actions { max-width: 100%; gap: 14px; }
  .btn--lg { padding: 15px 24px; font-size: 1rem; }
  .input--code { font-size: 16px; height: 50px; }
  
  /* Modals Optimization */
  .modal-card { width: 92%; max-width: 370px; padding: 24px 16px; }
  .modal-card__title { font-size: 1.25rem; }
  .modal-card__input { font-size: 1.3rem; height: 50px; letter-spacing: 4px; }
  
  /* Sidebar Rail compaction on phones */
  .icon-rail { width: 62px; padding: 16px 0; }
  .sidebar-panel { padding: 16px 14px; }
  .sidebar-nav-item { padding: 10px 12px; font-size: 0.88rem; }
}