/* ═══════════════════════════════════════════════════════════
   VOXU — App Stylesheet
   Voice-First Social Platform
   ═══════════════════════════════════════════════════════════ */

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --bg-primary:    #0f0f1a;
  --bg-secondary:  #1a1a2e;
  --bg-card:       #1e1e35;
  --bg-glass:      rgba(255,255,255,0.05);
  --bg-input:      rgba(255,255,255,0.07);
  --border:        rgba(255,255,255,0.1);
  --border-focus:  rgba(168,85,247,0.5);
  --purple:        #a855f7;
  --pink:          #ec4899;
  --blue:          #3b82f6;
  --green:         #22c55e;
  --orange:        #f59e0b;
  --red:           #ef4444;
  --text-primary:  #f1f5f9;
  --text-secondary:#94a3b8;
  --text-muted:    #64748b;
  --gradient:      linear-gradient(135deg, var(--purple), var(--pink));
  --gradient-text: -webkit-linear-gradient(135deg, var(--purple), var(--pink));
  --shadow-sm:     0 2px 8px rgba(0,0,0,0.3);
  --shadow-md:     0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg:     0 8px 40px rgba(0,0,0,0.5);
  --radius-sm:     8px;
  --radius-md:     16px;
  --radius-lg:     24px;
  --radius-xl:     32px;
  --radius-full:   9999px;
  --nav-height:    64px;
  --header-height: 60px;
  --transition:    0.2s ease;
}

/* ── Reset ──────────────────────────────────────────────────── */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-tap-highlight-color: transparent; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }
img { max-width: 100%; display: block; }

/* ── Layout ─────────────────────────────────────────────────── */
#app { display: flex; flex-direction: column; min-height: 100vh; }
.page { padding-bottom: calc(var(--nav-height) + 20px); }

/* ── Top Bar ─────────────────────────────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(15,15,26,0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
}
.topbar-logo {
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}
.topbar-actions { display: flex; align-items: center; gap: 8px; }
.topbar-btn {
  width: 40px; height: 40px;
  border-radius: var(--radius-full);
  background: var(--bg-glass);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  display: flex; align-items: center; justify-content: center;
  position: relative;
  transition: var(--transition);
}
.topbar-btn:hover { background: rgba(255,255,255,0.1); color: var(--text-primary); }
.notif-badge {
  position: absolute; top: -2px; right: -2px;
  width: 16px; height: 16px;
  background: var(--red);
  border-radius: var(--radius-full);
  font-size: 10px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  border: 2px solid var(--bg-primary);
}

/* ── Bottom Navigation ───────────────────────────────────────── */
.bottom-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: rgba(15,15,26,0.96);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-around;
  z-index: 100;
  padding: 0 8px;
  padding-bottom: env(safe-area-inset-bottom);
}
.nav-item {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  flex: 1; height: 100%;
  color: var(--text-muted);
  font-size: 10px; font-weight: 600;
  gap: 4px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  position: relative;
}
.nav-item svg { width: 22px; height: 22px; transition: var(--transition); }
.nav-item.active { color: var(--purple); }
.nav-item.active svg { transform: scale(1.1); }
.nav-create {
  width: 52px; height: 52px;
  border-radius: var(--radius-full);
  background: var(--gradient);
  box-shadow: 0 0 20px rgba(168,85,247,0.4);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
}
.nav-create:hover { transform: scale(1.05); box-shadow: 0 0 30px rgba(168,85,247,0.6); }

/* ── Cards ───────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
}
.glass-card {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

/* ── Voice Card ──────────────────────────────────────────────── */
.voice-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin: 0 12px 12px;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.voice-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gradient);
  opacity: 0;
  transition: var(--transition);
}
.voice-card:hover::before, .voice-card:hover { border-color: rgba(168,85,247,0.3); }
.voice-card:hover::before { opacity: 1; }
.voice-card-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.voice-card-user { flex: 1; }
.voice-card-username { font-weight: 700; font-size: 0.95rem; color: var(--text-primary); }
.voice-card-meta { font-size: 0.78rem; color: var(--text-muted); }
.voice-card-type-badge {
  padding: 3px 8px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.type-voice { background: rgba(168,85,247,0.2); color: var(--purple); }
.type-video { background: rgba(236,72,153,0.2); color: var(--pink); }
.type-text  { background: rgba(59,130,246,0.2); color: var(--blue); }

.voice-card-title { font-size: 0.95rem; color: var(--text-secondary); margin-bottom: 12px; line-height: 1.4; }
.voice-card-actions { display: flex; align-items: center; gap: 12px; }
.action-btn {
  display: flex; align-items: center; gap: 6px;
  color: var(--text-muted); font-size: 0.85rem; font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  background: var(--bg-glass);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.action-btn:hover { color: var(--text-primary); border-color: rgba(255,255,255,0.2); }
.action-btn.energy:hover { color: var(--orange); border-color: rgba(245,158,11,0.3); }
.action-btn.reply:hover  { color: var(--purple); border-color: rgba(168,85,247,0.3); }
.jump-btn {
  margin-left: auto;
  padding: 8px 18px;
  background: var(--gradient);
  color: #fff;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  transition: var(--transition);
  flex-shrink: 0;
}
.jump-btn:hover { opacity: 0.9; transform: scale(1.02); }

/* ── Waveform ────────────────────────────────────────────────── */
.waveform {
  display: flex; align-items: center; gap: 2px;
  height: 32px; padding: 4px 0;
}
.waveform-bar {
  width: 3px; min-height: 4px;
  border-radius: var(--radius-full);
  background: var(--gradient);
  transition: height 0.1s ease;
}
.waveform-bar.playing {
  animation: wavePlay 0.8s ease-in-out infinite;
}
.waveform-bar:nth-child(odd) { animation-delay: 0.15s; }

/* ── Audio Player ────────────────────────────────────────────── */
.voxu-player {
  display: flex; align-items: center; gap: 10px;
  background: rgba(168,85,247,0.1);
  border: 1px solid rgba(168,85,247,0.2);
  border-radius: var(--radius-full);
  padding: 8px 12px;
  margin: 8px 0;
}
.play-btn {
  width: 36px; height: 36px; border-radius: var(--radius-full);
  background: var(--gradient);
  color: #fff; display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; transition: var(--transition);
}
.play-btn:hover { transform: scale(1.1); }
.player-info { flex: 1; min-width: 0; }
.player-progress {
  position: relative; height: 4px;
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius-full); cursor: pointer; overflow: hidden;
}
.player-track { position: absolute; inset: 0; }
.player-filled {
  position: absolute; top: 0; left: 0; bottom: 0;
  background: var(--gradient); border-radius: var(--radius-full);
  pointer-events: none;
}
.player-times {
  display: flex; justify-content: space-between;
  font-size: 0.72rem; color: var(--text-muted); margin-top: 4px;
}

/* ── Feed ────────────────────────────────────────────────────── */
.feed-header {
  padding: 16px 16px 8px;
  display: flex; align-items: center; justify-content: space-between;
}
.feed-title { font-size: 1.2rem; font-weight: 800; }
.feed-filter {
  display: flex; gap: 8px;
  padding: 0 12px;
  overflow-x: auto; scrollbar-width: none;
}
.feed-filter::-webkit-scrollbar { display: none; }
.filter-chip {
  padding: 6px 16px;
  border-radius: var(--radius-full);
  background: var(--bg-glass);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.82rem; font-weight: 600;
  white-space: nowrap;
  transition: var(--transition);
  flex-shrink: 0;
}
.filter-chip.active, .filter-chip:hover {
  background: rgba(168,85,247,0.2);
  border-color: var(--purple);
  color: var(--purple);
}

/* ── Channel Grid ────────────────────────────────────────────── */
.channel-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px; padding: 16px;
}
.channel-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}
.channel-card:hover { border-color: rgba(168,85,247,0.4); background: rgba(168,85,247,0.05); }
.channel-icon { font-size: 2rem; margin-bottom: 8px; }
.channel-name { font-weight: 700; font-size: 0.9rem; color: var(--text-primary); }
.channel-count { font-size: 0.78rem; color: var(--text-muted); margin-top: 4px; }

/* ── Forms ───────────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-label {
  display: block;
  color: var(--text-secondary);
  font-size: 0.8rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.5px;
  margin-bottom: 8px;
}
.form-input {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary); font-size: 1rem;
  outline: none; transition: var(--transition);
}
.form-input:focus { border-color: var(--purple); background: rgba(168,85,247,0.08); }
.form-input::placeholder { color: var(--text-muted); }
.form-input.error { border-color: var(--red); }
.form-error { color: var(--red); font-size: 0.8rem; margin-top: 6px; }
.form-hint  { color: var(--text-muted); font-size: 0.8rem; margin-top: 6px; }

textarea.form-input { resize: vertical; min-height: 100px; }
select.form-input { appearance: none; cursor: pointer; }

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 24px;
  border-radius: var(--radius-full);
  font-weight: 700; font-size: 1rem;
  transition: var(--transition);
  cursor: pointer; border: none;
}
.btn-primary { background: var(--gradient); color: #fff; }
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); box-shadow: 0 4px 20px rgba(168,85,247,0.4); }
.btn-secondary { background: var(--bg-glass); border: 1px solid var(--border); color: var(--text-primary); }
.btn-secondary:hover { border-color: rgba(255,255,255,0.2); }
.btn-outline { background: transparent; border: 1px solid var(--purple); color: var(--purple); }
.btn-outline:hover { background: rgba(168,85,247,0.1); }
.btn-danger { background: rgba(239,68,68,0.15); border: 1px solid rgba(239,68,68,0.3); color: var(--red); }
.btn-danger:hover { background: rgba(239,68,68,0.25); }
.btn-sm { padding: 8px 16px; font-size: 0.85rem; }
.btn-lg { padding: 18px 32px; font-size: 1.1rem; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }
.btn-loading { position: relative; pointer-events: none; }
.btn-loading::after {
  content: '';
  position: absolute;
  width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

/* ── Auth Pages ──────────────────────────────────────────────── */
.auth-page {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  background: linear-gradient(135deg, #0f0f1a, #1a0a2e, #0d1117);
}
.auth-card {
  width: 100%; max-width: 400px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  backdrop-filter: blur(20px);
}
.auth-logo {
  text-align: center; margin-bottom: 8px;
  font-size: 2.4rem; font-weight: 900;
  background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.auth-tagline { text-align: center; color: var(--text-muted); margin-bottom: 32px; font-size: 0.9rem; }
.auth-divider {
  display: flex; align-items: center; gap: 12px; margin: 20px 0;
  color: var(--text-muted); font-size: 0.8rem;
}
.auth-divider::before, .auth-divider::after {
  content: ''; flex: 1; height: 1px; background: var(--border);
}
.auth-link { color: var(--purple); font-weight: 600; cursor: pointer; }
.auth-link:hover { text-decoration: underline; }
.account-type-selector { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 16px; }
.account-type-option {
  padding: 12px 8px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-align: center;
  cursor: pointer;
  font-size: 0.8rem; font-weight: 600;
  color: var(--text-secondary);
  transition: var(--transition);
}
.account-type-option.selected {
  border-color: var(--purple);
  background: rgba(168,85,247,0.1);
  color: var(--purple);
}
.account-type-option .icon { font-size: 1.4rem; margin-bottom: 4px; }

/* ── Profile ─────────────────────────────────────────────────── */
.profile-header {
  background: linear-gradient(180deg, rgba(168,85,247,0.15) 0%, transparent 100%);
  padding: 24px 16px 16px;
  text-align: center;
}
.profile-avatar-wrapper {
  position: relative; display: inline-block; margin-bottom: 12px;
}
.profile-avatar {
  width: 80px; height: 80px; border-radius: 50%;
  border: 3px solid var(--purple);
  object-fit: cover;
}
.profile-voice-ring {
  position: absolute; inset: -6px;
  border-radius: 50%;
  background: conic-gradient(var(--purple) 60%, transparent 60%);
  animation: spin 4s linear infinite;
  z-index: -1;
}
.profile-username { font-size: 1.3rem; font-weight: 800; margin-bottom: 4px; }
.profile-bio { color: var(--text-muted); font-size: 0.9rem; max-width: 300px; margin: 0 auto 12px; }
.profile-stats { display: flex; justify-content: center; gap: 32px; margin: 16px 0; }
.profile-stat { text-align: center; }
.profile-stat-value { font-size: 1.2rem; font-weight: 800; color: var(--text-primary); }
.profile-stat-label { font-size: 0.75rem; color: var(--text-muted); }
.voice-score-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px;
  background: rgba(168,85,247,0.2); border: 1px solid rgba(168,85,247,0.3);
  border-radius: var(--radius-full);
  font-size: 0.8rem; font-weight: 700; color: var(--purple);
  margin-bottom: 12px;
}
.profile-tabs { display: flex; border-bottom: 1px solid var(--border); }
.profile-tab {
  flex: 1; padding: 14px; text-align: center;
  font-size: 0.85rem; font-weight: 700;
  color: var(--text-muted); border-bottom: 2px solid transparent;
  transition: var(--transition);
}
.profile-tab.active { color: var(--purple); border-bottom-color: var(--purple); }

/* ── Wallet ──────────────────────────────────────────────────── */
.wallet-hero {
  margin: 16px;
  background: linear-gradient(135deg, rgba(168,85,247,0.3), rgba(236,72,153,0.3));
  border: 1px solid rgba(168,85,247,0.3);
  border-radius: var(--radius-xl);
  padding: 28px 24px;
  text-align: center;
}
.wallet-balance-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 4px; }
.wallet-balance-amount { font-size: 2.4rem; font-weight: 900; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.wallet-balance-sub { font-size: 0.85rem; color: var(--text-secondary); margin-top: 4px; }
.wallet-balance-row { display: flex; gap: 16px; margin-top: 20px; }
.wallet-balance-item { flex: 1; background: rgba(255,255,255,0.05); border-radius: var(--radius-md); padding: 12px; }
.wallet-balance-item-label { font-size: 0.72rem; color: var(--text-muted); margin-bottom: 4px; }
.wallet-balance-item-val  { font-size: 1.1rem; font-weight: 800; color: var(--text-primary); }
.wallet-actions { display: flex; gap: 10px; padding: 0 16px 16px; }
.wallet-action-btn {
  flex: 1; padding: 14px; border-radius: var(--radius-md);
  background: var(--bg-card); border: 1px solid var(--border);
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  font-size: 0.78rem; font-weight: 700; color: var(--text-secondary);
  transition: var(--transition);
}
.wallet-action-btn .icon { font-size: 1.3rem; }
.wallet-action-btn:hover { border-color: var(--purple); color: var(--purple); }

/* ── Transaction List ────────────────────────────────────────── */
.tx-list { padding: 0 16px; }
.tx-item {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.tx-item:last-child { border-bottom: none; }
.tx-icon {
  width: 40px; height: 40px; border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; flex-shrink: 0;
}
.tx-earn     { background: rgba(34,197,94,0.2); }
.tx-deposit  { background: rgba(59,130,246,0.2); }
.tx-withdraw { background: rgba(245,158,11,0.2); }
.tx-transfer { background: rgba(168,85,247,0.2); }
.tx-tip      { background: rgba(236,72,153,0.2); }
.tx-reward   { background: rgba(251,191,36,0.2); }
.tx-info { flex: 1; min-width: 0; }
.tx-type { font-weight: 700; font-size: 0.9rem; text-transform: capitalize; }
.tx-desc { font-size: 0.78rem; color: var(--text-muted); margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tx-amount { text-align: right; flex-shrink: 0; }
.tx-amount-val { font-weight: 800; font-size: 0.95rem; }
.tx-amount-val.positive { color: var(--green); }
.tx-amount-val.negative { color: var(--red); }
.tx-date { font-size: 0.72rem; color: var(--text-muted); margin-top: 2px; }

/* ── Status Badges ───────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center;
  padding: 3px 10px; border-radius: var(--radius-full);
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;
}
.badge-success  { background: rgba(34,197,94,0.15);  color: var(--green); border: 1px solid rgba(34,197,94,0.3); }
.badge-warning  { background: rgba(245,158,11,0.15); color: var(--orange); border: 1px solid rgba(245,158,11,0.3); }
.badge-danger   { background: rgba(239,68,68,0.15);  color: var(--red); border: 1px solid rgba(239,68,68,0.3); }
.badge-info     { background: rgba(59,130,246,0.15); color: var(--blue); border: 1px solid rgba(59,130,246,0.3); }
.badge-purple   { background: rgba(168,85,247,0.15); color: var(--purple); border: 1px solid rgba(168,85,247,0.3); }

/* ── Recording UI ────────────────────────────────────────────── */
.recorder-modal {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.8);
  display: flex; align-items: flex-end;
  animation: fadeIn 0.2s ease;
}
.recorder-sheet {
  width: 100%;
  background: var(--bg-secondary);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  border-top: 1px solid var(--border);
  padding: 24px 24px 48px;
  animation: slideUp 0.3s ease;
}
.recorder-handle {
  width: 40px; height: 4px; border-radius: var(--radius-full);
  background: var(--border); margin: 0 auto 24px;
}
.recorder-canvas {
  width: 100%; height: 80px; border-radius: var(--radius-md);
  background: rgba(0,0,0,0.3); margin-bottom: 20px;
}
.recorder-timer {
  text-align: center; font-size: 2.5rem; font-weight: 900;
  font-variant-numeric: tabular-nums;
  background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 24px;
}
.recorder-controls { display: flex; align-items: center; justify-content: center; gap: 20px; }
.rec-btn {
  width: 56px; height: 56px; border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
.rec-btn-main {
  width: 72px; height: 72px;
  background: var(--red);
  box-shadow: 0 0 24px rgba(239,68,68,0.5);
}
.rec-btn-main.recording {
  background: var(--gradient);
  box-shadow: 0 0 24px rgba(168,85,247,0.6);
  animation: pulse 1.5s ease-in-out infinite;
}

/* ── Campaigns ───────────────────────────────────────────────── */
.campaign-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin: 0 12px 12px;
  transition: var(--transition);
}
.campaign-card:hover { border-color: rgba(168,85,247,0.3); }
.campaign-reward-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px;
  background: rgba(251,191,36,0.15); border: 1px solid rgba(251,191,36,0.3);
  border-radius: var(--radius-full);
  font-size: 0.85rem; font-weight: 800; color: #fbbf24;
}
.campaign-budget-bar { margin: 12px 0; }
.campaign-budget-track {
  height: 6px; background: rgba(255,255,255,0.1);
  border-radius: var(--radius-full); overflow: hidden;
}
.campaign-budget-fill {
  height: 100%; background: var(--gradient); border-radius: var(--radius-full);
  transition: width 0.5s ease;
}

/* ── Groups ──────────────────────────────────────────────────── */
.group-card {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  cursor: pointer; transition: var(--transition);
}
.group-card:hover { background: var(--bg-glass); }
.group-avatar {
  width: 48px; height: 48px; border-radius: var(--radius-md);
  background: var(--gradient);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; flex-shrink: 0;
}
.group-info { flex: 1; min-width: 0; }
.group-name { font-weight: 700; font-size: 0.95rem; }
.group-meta { font-size: 0.78rem; color: var(--text-muted); margin-top: 2px; }
.role-badge {
  padding: 3px 10px; border-radius: var(--radius-full);
  font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
}
.role-admin { background: rgba(168,85,247,0.2); color: var(--purple); }
.role-moderator { background: rgba(59,130,246,0.2); color: var(--blue); }
.role-member { background: rgba(255,255,255,0.05); color: var(--text-muted); }

/* ── Notifications ───────────────────────────────────────────── */
.notif-item {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: var(--transition);
}
.notif-item.unread { background: rgba(168,85,247,0.05); }
.notif-item:hover { background: var(--bg-glass); }
.notif-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--purple); flex-shrink: 0; margin-top: 6px; }
.notif-content { flex: 1; }
.notif-text { font-size: 0.9rem; line-height: 1.4; }
.notif-time { font-size: 0.75rem; color: var(--text-muted); margin-top: 4px; }

/* ── Section Header ──────────────────────────────────────────── */
.section-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 16px 8px;
}
.section-title { font-size: 1.1rem; font-weight: 800; }
.section-action { font-size: 0.85rem; color: var(--purple); font-weight: 600; }

/* ── Empty State ─────────────────────────────────────────────── */
.empty-state {
  text-align: center; padding: 60px 24px;
  color: var(--text-muted);
}
.empty-state .icon { font-size: 3rem; margin-bottom: 16px; opacity: 0.4; }
.empty-state h3 { color: var(--text-secondary); margin-bottom: 8px; }
.empty-state p { font-size: 0.9rem; max-width: 260px; margin: 0 auto 20px; }

/* ── Loading ─────────────────────────────────────────────────── */
.spinner {
  width: 32px; height: 32px;
  border: 3px solid rgba(168,85,247,0.2);
  border-top-color: var(--purple);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin: 0 auto;
}
.loading-page {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  min-height: 300px; gap: 16px;
  color: var(--text-muted); font-size: 0.9rem;
}
.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, rgba(255,255,255,0.05) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  border-radius: var(--radius-sm);
  animation: shimmer 1.5s infinite;
}
@keyframes shimmer { 0%{background-position:200% 0} 100%{background-position:-200% 0} }

/* ── Modal ───────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.7);
  display: flex; align-items: flex-end;
  animation: fadeIn 0.2s ease;
}
.modal-overlay.center { align-items: center; justify-content: center; }
.modal-sheet {
  width: 100%; max-height: 90vh;
  background: var(--bg-secondary);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  border-top: 1px solid var(--border);
  overflow-y: auto;
  animation: slideUp 0.3s ease;
}
.modal-center { width: calc(100% - 32px); max-width: 480px; border-radius: var(--radius-xl); animation: scaleIn 0.25s ease; max-height: 90vh; overflow-y: auto; }
.modal-header {
  position: sticky; top: 0; z-index: 10;
  background: var(--bg-secondary);
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-title { font-size: 1.1rem; font-weight: 800; }
.modal-close {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--bg-glass); border: 1px solid var(--border);
  color: var(--text-secondary); display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; transition: var(--transition);
}
.modal-close:hover { color: var(--text-primary); }
.modal-body { padding: 20px; }
.modal-handle { width: 40px; height: 4px; border-radius: 9999px; background: var(--border); margin: 12px auto 0; }

/* ── Search ──────────────────────────────────────────────────── */
.search-bar {
  margin: 12px 16px;
  position: relative;
}
.search-input {
  width: 100%;
  padding: 12px 16px 12px 44px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  color: var(--text-primary); font-size: 0.95rem;
  outline: none; transition: var(--transition);
}
.search-input:focus { border-color: var(--purple); }
.search-icon {
  position: absolute; left: 16px; top: 50%; transform: translateY(-50%);
  color: var(--text-muted); pointer-events: none;
}

/* ── Animations ──────────────────────────────────────────────── */
@keyframes fadeIn   { from{opacity:0} to{opacity:1} }
@keyframes slideUp  { from{transform:translateY(100%)} to{transform:translateY(0)} }
@keyframes scaleIn  { from{transform:scale(0.9);opacity:0} to{transform:scale(1);opacity:1} }
@keyframes wavePlay { 0%,100%{transform:scaleY(1)} 50%{transform:scaleY(2.5)} }

/* ── Scrollbar ───────────────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(168,85,247,0.4); border-radius: 9999px; }
* { scrollbar-width: thin; scrollbar-color: rgba(168,85,247,0.4) transparent; }

/* ── Responsive Desktop ──────────────────────────────────────── */
@media (min-width: 768px) {
  .bottom-nav { display: none; }
  #app { flex-direction: row; }
  .sidebar {
    width: 260px; min-height: 100vh; flex-shrink: 0;
    position: sticky; top: 0;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 20px 0;
    display: flex; flex-direction: column;
  }
  .sidebar-logo {
    font-size: 2rem; font-weight: 900;
    background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    padding: 8px 20px 24px;
    letter-spacing: -1px;
  }
  .sidebar-nav { flex: 1; }
  .sidebar-item {
    display: flex; align-items: center; gap: 14px;
    padding: 12px 20px; margin: 2px 8px;
    border-radius: var(--radius-md);
    color: var(--text-muted); font-weight: 600;
    transition: var(--transition);
  }
  .sidebar-item:hover { background: var(--bg-glass); color: var(--text-primary); }
  .sidebar-item.active { background: rgba(168,85,247,0.15); color: var(--purple); }
  .sidebar-item svg { width: 20px; height: 20px; }
  .main-content { flex: 1; max-width: 680px; }
  .page { padding-bottom: 40px; }
}

@media (min-width: 1024px) {
  .main-content { max-width: 720px; }
}

/* ── PWA Install Banner ──────────────────────────────────────── */
.install-banner {
  position: fixed; bottom: calc(var(--nav-height) + 8px); left: 12px; right: 12px; z-index: 150;
  background: var(--bg-secondary);
  border: 1px solid rgba(168,85,247,0.4);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  display: flex; align-items: center; gap: 12px;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.3s ease;
}
.install-banner-text { flex: 1; font-size: 0.85rem; }
.install-banner-text strong { display: block; color: var(--text-primary); }
.install-banner-text span { color: var(--text-muted); }