/* ═══════════════════════════════════════════════════════════
   AaroDeutsch · main.css
   Mobile-first · Responsive · Premium Dark Design
   ═══════════════════════════════════════════════════════════ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@400;500;600;700;800;900&display=swap');

/* ── CSS Variables ── */
:root {
  --bg0: #0b0b18;
  --bg1: #12121f;
  --bg2: #1a1a2e;
  --bg3: #22223a;
  --bg4: #2a2a46;
  --glass: rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.08);

  --c-primary: #7C6EF8;
  --c-primary-dark: #5a4de0;
  --c-secondary: #FF6B9D;
  --c-teal: #00D4C8;
  --c-gold: #FFD700;
  --c-green: #00E676;
  --c-red: #FF5252;
  --c-orange: #FF9F43;

  --grad-primary: linear-gradient(135deg, #7C6EF8 0%, #FF6B9D 100%);
  --grad-gold: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
  --grad-green: linear-gradient(135deg, #00E676 0%, #00BFA5 100%);
  --grad-blue: linear-gradient(135deg, #00D4C8 0%, #7C6EF8 100%);
  --grad-orange: linear-gradient(135deg, #FF9F43 0%, #FF6B9D 100%);

  --tx1: #FFFFFF;
  --tx2: rgba(255,255,255,0.72);
  --tx3: rgba(255,255,255,0.44);
  --tx4: rgba(255,255,255,0.24);

  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 9999px;

  --shadow-sm: 0 2px 10px rgba(0,0,0,0.4);
  --shadow-md: 0 8px 28px rgba(0,0,0,0.5);
  --shadow-lg: 0 16px 56px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 32px rgba(124,110,248,0.35);

  --sidebar-w: 252px;
  --topbar-h: 56px;
  --bottom-nav-h: 60px;

  --ease: cubic-bezier(0.4,0,0.2,1);
  --dur: 0.28s;
  --dur-slow: 0.5s;

  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Outfit', system-ui, -apple-system, sans-serif;
}

/* Light mode */
body.light {
  --bg0: #f0f2f8;
  --bg1: #ffffff;
  --bg2: #f8f9fc;
  --bg3: #eef0f6;
  --bg4: #e4e8f0;
  --glass: rgba(0,0,0,0.03);
  --glass-border: rgba(0,0,0,0.08);
  --tx1: #111122;
  --tx2: rgba(0,0,0,0.68);
  --tx3: rgba(0,0,0,0.44);
  --tx4: rgba(0,0,0,0.2);
  --shadow-sm: 0 2px 10px rgba(0,0,0,0.08);
  --shadow-md: 0 8px 28px rgba(0,0,0,0.12);
  --shadow-lg: 0 16px 56px rgba(0,0,0,0.16);
}

/* ── Reset ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{font-size:16px;-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  font-family:var(--font-sans);
  background:var(--bg0);
  color:var(--tx1);
  min-height:100vh;
  overflow-x:hidden;
  transition:background var(--dur) var(--ease), color var(--dur) var(--ease);
}
img,video,canvas{max-width:100%;height:auto;display:block;}
button{font-family:inherit;cursor:pointer;}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}
select,input,textarea{font-family:inherit;}

/* ════════════════════════════════════════
   LAYOUT
════════════════════════════════════════ */
.app-shell {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left var(--dur) var(--ease);
}

/* ── Sidebar ── */
.sidebar {
  position: fixed;
  left: 0; top: 0; bottom: 0;
  width: var(--sidebar-w);
  background: var(--bg1);
  border-right: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  z-index: 200;
  overflow: hidden;
  transition: transform var(--dur) var(--ease), width var(--dur) var(--ease);
}

.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 199;
  backdrop-filter: blur(4px);
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 16px;
  border-bottom: 1px solid var(--glass-border);
  flex-shrink: 0;
}

.logo { display: flex; align-items: center; gap: 10px; }
.logo-flag { font-size: 26px; }
.logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.logo-name {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.logo-tagline { font-size: 10px; color: var(--tx3); text-transform: uppercase; letter-spacing: .8px; }

.sidebar-close-btn {
  display: none;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--tx2);
  width: 32px; height: 32px;
  font-size: 14px;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* User Card */
.user-card {
  margin: 12px;
  padding: 14px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}
.user-card-top { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.user-avatar-wrap { position: relative; flex-shrink: 0; }
.user-avatar { font-size: 30px; line-height: 1; }
.streak-chip {
  position: absolute;
  top: -4px; right: -12px;
  background: linear-gradient(135deg,#FF6B00,#FF0066);
  border-radius: var(--radius-pill);
  padding: 2px 5px;
  font-size: 10px;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 2px;
  white-space: nowrap;
}
.user-meta { flex: 1; min-width: 0; }
.user-name { font-weight: 700; font-size: 13px; color: var(--tx1); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-level-tag { font-size: 10px; color: var(--tx3); margin-top: 1px; }
.xp-section {}
.xp-row { display: flex; justify-content: space-between; font-size: 10px; color: var(--tx3); margin-bottom: 4px; }
.xp-val { color: var(--c-gold); font-weight: 700; }
.xp-track { height: 5px; background: rgba(255,255,255,0.08); border-radius: var(--radius-pill); overflow: hidden; }
.xp-bar { height: 100%; background: var(--grad-primary); border-radius: var(--radius-pill); transition: width 1s var(--ease); }

/* Nav Menu */
.nav-menu {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--glass-border) transparent;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--tx2);
  font-size: 13.5px;
  font-weight: 500;
  position: relative;
  margin-bottom: 1px;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), transform 0.15s;
  white-space: nowrap;
}
.nav-link:hover { background: var(--glass); color: var(--tx1); transform: translateX(2px); }
.nav-link.active {
  background: linear-gradient(135deg,rgba(124,110,248,0.18),rgba(255,107,157,0.08));
  color: var(--tx1);
  border-left: 3px solid var(--c-primary);
}
.nav-ico { font-size: 17px; width: 22px; text-align: center; flex-shrink: 0; }
.nav-lbl { flex: 1; }
.nav-pip {
  width: 7px; height: 7px;
  background: var(--c-secondary);
  border-radius: 50%;
  flex-shrink: 0;
}

/* Sidebar Groups */
.nav-section-title {
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--tx3);
  padding: 16px 12px 6px 12px;
  letter-spacing: 0.8px;
  opacity: 0.85;
}
.nav-link.disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.nav-link.disabled:hover {
  background: none !important;
  transform: none !important;
}
.nav-lock-badge {
  font-size: 9px;
  font-weight: 700;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  padding: 1px 5px;
  border-radius: 4px;
  color: var(--tx3);
  text-transform: uppercase;
}

/* Sidebar Footer */
.sidebar-footer {
  padding: 12px;
  border-top: 1px solid var(--glass-border);
  flex-shrink: 0;
}
.daily-goal-label { font-size: 10px; color: var(--tx3); text-transform: uppercase; letter-spacing: .6px; margin-bottom: 5px; }
.daily-goal-track { height: 6px; background: rgba(255,255,255,0.08); border-radius: var(--radius-pill); overflow: hidden; margin-bottom: 4px; }
.daily-goal-fill { height: 100%; background: var(--grad-green); border-radius: var(--radius-pill); transition: width 1s var(--ease); }
.daily-goal-count { font-size: 11px; color: var(--tx3); }

/* ── Topbar ── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--topbar-h);
  background: var(--bg1);
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  backdrop-filter: blur(12px);
}
.hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  padding: 6px;
  flex-shrink: 0;
}
.hamburger span {
  display: block;
  width: 20px; height: 2px;
  background: var(--tx2);
  border-radius: 2px;
  transition: var(--dur);
}
.topbar-title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  flex: 1;
  color: var(--tx1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.topbar-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.topbar-btn {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  width: 36px; height: 36px;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--dur), transform 0.15s;
  color: var(--tx1);
}
.topbar-btn:hover { background: var(--bg3); transform: scale(1.06); }

/* ── Pages ── */
.pages-wrap {
  flex: 1;
  overflow: hidden;
  padding-bottom: var(--bottom-nav-h);
}
.page { display: none; }
.page.active {
  display: block;
  animation: pagein .35s var(--ease);
}
@keyframes pagein {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
.page-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px 16px 32px;
}
.page-head { margin-bottom: 22px; }
.page-head h1 { font-family: var(--font-display); font-size: clamp(22px,4vw,30px); font-weight: 900; margin-bottom: 4px; }
.page-head p  { font-size: 13px; color: var(--tx3); }

/* ── Bottom Nav (mobile) ── */
.bottom-nav {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: var(--bottom-nav-h);
  background: var(--bg1);
  border-top: 1px solid var(--glass-border);
  z-index: 150;
  padding: 0 4px;
  padding-bottom: env(safe-area-inset-bottom);
  justify-content: space-around;
  align-items: center;
}
.bn-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  flex: 1;
  padding: 6px 4px;
  color: var(--tx3);
  font-size: 10px;
  border-radius: var(--radius-sm);
  transition: color var(--dur), background var(--dur);
}
.bn-item span:first-child { font-size: 20px; }
.bn-item.active { color: var(--c-primary); }
.bn-item:hover { color: var(--tx1); }

/* ════════════════════════════════════════
   BUTTONS
════════════════════════════════════════ */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--grad-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 700;
  transition: transform 0.15s, box-shadow var(--dur);
  white-space: nowrap;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(124,110,248,0.4); }
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--glass);
  color: var(--tx1);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 12px 22px;
  font-size: 14px;
  font-weight: 600;
  transition: background var(--dur), border-color var(--dur);
}
.btn-secondary:hover { background: var(--bg3); border-color: var(--c-primary); }

.btn-hero {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.22);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: var(--radius-md);
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 700;
  backdrop-filter: blur(8px);
  transition: background 0.15s;
}
.btn-hero:hover { background: rgba(255,255,255,0.35); }

.btn-go {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--c-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 700;
  transition: background 0.15s, transform 0.15s;
  white-space: nowrap;
}
.btn-go:hover { background: var(--c-primary-dark); transform: scale(1.04); }

.btn-lg { padding: 16px 32px; font-size: 16px; border-radius: var(--radius-lg); }
.w-full { width: 100%; }

.txt-link {
  background: none;
  border: none;
  color: var(--c-primary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.15s;
}
.txt-link:hover { color: var(--c-secondary); }

/* ════════════════════════════════════════
   DASHBOARD PAGE
════════════════════════════════════════ */

/* Hero Banner */
.hero-banner {
  background: var(--grad-primary);
  border-radius: var(--radius-xl);
  padding: clamp(18px,4vw,28px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-glow);
}
.hero-banner::before {
  content: '';
  position: absolute;
  top: -40%; right: -5%;
  width: 280px; height: 280px;
  background: rgba(255,255,255,0.07);
  border-radius: 50%;
  pointer-events: none;
}
.hero-left { flex: 1; min-width: 0; z-index: 1; }
.hero-greeting { font-family: var(--font-display); font-size: clamp(18px,3.5vw,24px); font-weight: 900; color: #fff; margin-bottom: 4px; }
.hero-sub { font-size: 13px; color: rgba(255,255,255,0.82); margin-bottom: 14px; }
.hero-cta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.hero-streak-pill {
  background: rgba(255,255,255,0.18);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--radius-pill);
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  backdrop-filter: blur(6px);
}
.hero-char { display: flex; flex-direction: column; align-items: center; gap: 6px; flex-shrink: 0; z-index: 1; }
.char-bubble {
  background: rgba(255,255,255,0.18);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  font-size: 12px;
  font-style: italic;
  color: #fff;
  max-width: 160px;
  text-align: center;
  backdrop-filter: blur(6px);
  position: relative;
}
.char-bubble::after {
  content: '';
  position: absolute;
  bottom: -7px; left: 50%;
  transform: translateX(-50%);
  border: 7px solid transparent;
  border-top-color: rgba(255,255,255,0.3);
}
.char-emoji { font-size: 36px; }

/* Stats Row */
.stats-row {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-bottom: 2px;
}
.stats-row::-webkit-scrollbar { display: none; }
.stat-pill {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  min-width: 100px;
  transition: transform 0.15s, border-color var(--dur);
}
.stat-pill:hover { transform: translateY(-3px); border-color: var(--c-primary); }
.stat-ico { font-size: 24px; }
.stat-val { font-family: var(--font-display); font-size: 20px; font-weight: 900; }
.stat-lbl { font-size: 10px; color: var(--tx3); text-transform: uppercase; letter-spacing: .5px; }

/* Section Headers */
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  gap: 10px;
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(16px,2.5vw,20px);
  font-weight: 800;
}
.reset-tag { font-size: 11px; color: var(--tx3); }
.badge-a1 {
  background: var(--grad-primary);
  color: #fff;
  font-size: 10px;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  letter-spacing: .8px;
}

/* Continue Card */
.continue-card {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
  cursor: pointer;
  transition: border-color var(--dur), transform 0.15s, box-shadow var(--dur);
}
.continue-card:hover { border-color: var(--c-primary); transform: translateY(-2px); box-shadow: var(--shadow-glow); }
.continue-left { display: flex; align-items: flex-start; gap: 14px; flex: 1; min-width: 0; }
.continue-emoji { font-size: 40px; flex-shrink: 0; }
.continue-title { font-family: var(--font-display); font-size: 17px; font-weight: 800; margin-bottom: 3px; }
.continue-sub { font-size: 12px; color: var(--tx3); margin-bottom: 8px; }
.continue-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  padding: 3px 9px;
  font-size: 10px;
  color: var(--tx2);
}
.continue-right { display: flex; flex-direction: column; align-items: center; gap: 10px; flex-shrink: 0; }
.ring-wrap { position: relative; width: 56px; height: 56px; }
.ring-svg { width: 56px; height: 56px; }
.ring-bg { fill: none; stroke: rgba(255,255,255,0.08); stroke-width: 5; }
.ring-fg { fill: none; stroke: url(#ringGrad); stroke-width: 5; stroke-linecap: round; transform: rotate(-90deg); transform-origin: 50% 50%; transition: stroke-dashoffset 1s var(--ease); }
.ring-pct { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); font-size: 11px; font-weight: 700; }

/* Personal Best Banner */
.personal-best-banner {
  background: linear-gradient(135deg,rgba(255,215,0,0.12),rgba(255,165,0,0.08));
  border: 1px solid rgba(255,215,0,0.3);
  border-radius: var(--radius-lg);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
  animation: pb-in .5s var(--ease);
}
@keyframes pb-in { from { opacity:0; transform: scale(0.95); } to { opacity:1; transform: scale(1); } }
.pb-icon { font-size: 32px; }
.pb-title { font-weight: 800; font-size: 14px; color: var(--c-gold); }
.pb-sub { font-size: 12px; color: var(--tx2); }

/* Missions */
.missions-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 22px; }
.mission-item {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 13px 16px;
  display: flex;
  align-items: center;
  gap: 13px;
  transition: border-color var(--dur), background var(--dur);
}
.mission-item.done { border-color: rgba(0,230,118,0.3); background: rgba(0,230,118,0.04); }
.mission-ico { font-size: 22px; flex-shrink: 0; }
.mission-body { flex: 1; min-width: 0; }
.mission-name { font-weight: 700; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mission-desc { font-size: 11px; color: var(--tx3); margin-top: 2px; }
.mission-progress-wrap { margin-top: 5px; }
.mission-prog-track { height: 3px; background: rgba(255,255,255,0.08); border-radius: var(--radius-pill); overflow: hidden; }
.mission-prog-fill { height: 100%; background: var(--grad-primary); border-radius: var(--radius-pill); transition: width .8s var(--ease); }
.mission-xp {
  font-size: 11px;
  font-weight: 700;
  color: var(--c-gold);
  background: rgba(255,215,0,0.1);
  border-radius: var(--radius-pill);
  padding: 3px 8px;
  flex-shrink: 0;
}
.mission-check { font-size: 20px; flex-shrink: 0; }

/* Weekly Challenge */
.weekly-card {
  background: linear-gradient(135deg,rgba(124,110,248,0.1),rgba(255,107,157,0.06));
  border: 1px solid rgba(124,110,248,0.25);
  border-radius: var(--radius-xl);
  padding: 20px;
  margin-bottom: 22px;
}
.weekly-card-inner { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.weekly-icon { font-size: 40px; flex-shrink: 0; }
.weekly-body { flex: 1; min-width: 200px; }
.weekly-title { font-family: var(--font-display); font-size: 18px; font-weight: 800; margin-bottom: 4px; }
.weekly-desc { font-size: 13px; color: var(--tx2); margin-bottom: 10px; }
.weekly-prog { display: flex; align-items: center; gap: 8px; }
.weekly-prog-track { flex: 1; height: 6px; background: rgba(255,255,255,0.1); border-radius: var(--radius-pill); overflow: hidden; }
.weekly-prog-fill { height: 100%; background: var(--grad-primary); border-radius: var(--radius-pill); transition: width 1s var(--ease); }
.weekly-prog-txt { font-size: 12px; font-weight: 700; color: var(--tx2); flex-shrink: 0; }

/* Chapter Grid */
.chapter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 22px;
}
.ch-tile {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 16px 12px;
  cursor: pointer;
  transition: transform 0.15s, border-color var(--dur), box-shadow var(--dur);
  position: relative;
  overflow: hidden;
}
.ch-tile::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--ch-color, var(--c-primary));
}
.ch-tile:hover { transform: translateY(-4px); border-color: var(--ch-color,var(--c-primary)); box-shadow: 0 8px 24px rgba(0,0,0,0.3); }
.ch-tile.done::after { content: '✅'; position: absolute; top: 10px; right: 10px; font-size: 14px; }
.ch-tile.locked { opacity: 0.45; cursor: not-allowed; }
.ch-num { font-size: 10px; color: var(--tx3); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 4px; }
.ch-emoji { font-size: 28px; margin-bottom: 7px; }
.ch-name { font-family: var(--font-display); font-size: 13px; font-weight: 700; margin-bottom: 3px; line-height: 1.3; }
.ch-theme { font-size: 10px; color: var(--tx3); margin-bottom: 8px; }
.ch-bar { height: 3px; background: rgba(255,255,255,0.08); border-radius: var(--radius-pill); overflow: hidden; }
.ch-bar-fill { height: 100%; background: var(--ch-color, var(--c-primary)); border-radius: var(--radius-pill); transition: width 1s var(--ease); }

/* Badges Shelf */
.badges-shelf {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  gap: 10px;
  margin-bottom: 22px;
}
.bdg-item {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 14px 8px;
  text-align: center;
  transition: transform 0.15s;
}
.bdg-item.earned { border-color: rgba(255,215,0,0.35); background: rgba(255,215,0,0.05); }
.bdg-item:hover { transform: scale(1.06); }
.bdg-ico { font-size: 28px; margin-bottom: 5px; filter: grayscale(1); opacity: .28; }
.bdg-item.earned .bdg-ico { filter: none; opacity: 1; }
.bdg-name { font-size: 9px; font-weight: 600; color: var(--tx3); line-height: 1.3; }
.bdg-item.earned .bdg-name { color: var(--tx2); }

/* ════════════════════════════════════════
   LESSONS PAGE
════════════════════════════════════════ */
.lesson-list { display: flex; flex-direction: column; gap: 12px; }
.lesson-row {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  transition: transform 0.15s, border-color var(--dur), box-shadow var(--dur);
  position: relative;
  overflow: hidden;
}
.lesson-row::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--ch-color, var(--c-primary));
}
.lesson-row:hover { transform: translateX(4px); border-color: var(--ch-color,var(--c-primary)); box-shadow: var(--shadow-sm); }
.lesson-row.done { background: rgba(0,230,118,0.03); border-color: rgba(0,230,118,0.15); }
.lr-emoji { font-size: 34px; flex-shrink: 0; }
.lr-info { flex: 1; min-width: 0; }
.lr-num { font-size: 10px; color: var(--tx3); text-transform: uppercase; letter-spacing: .5px; }
.lr-title { font-family: var(--font-display); font-size: 17px; font-weight: 800; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lr-theme { font-size: 12px; color: var(--tx3); margin-bottom: 7px; }
.lr-meta { display: flex; flex-wrap: wrap; gap: 6px; }
.lr-tag {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  padding: 3px 9px;
  font-size: 10px;
  color: var(--tx2);
}
.lr-prog { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; flex-shrink: 0; }
.lr-pct { font-family: var(--font-display); font-size: 18px; font-weight: 900; }
.lr-bar-wrap { width: 70px; }
.lr-bar { height: 5px; background: rgba(255,255,255,0.08); border-radius: var(--radius-pill); overflow: hidden; }
.lr-bar-fill { height: 100%; background: var(--ch-color,var(--c-primary)); border-radius: var(--radius-pill); transition: width 1s; }
.lr-arrow { font-size: 18px; color: var(--tx3); flex-shrink: 0; }

/* ════════════════════════════════════════
   LESSON DETAIL
════════════════════════════════════════ */
.ld-header {
  border-radius: var(--radius-xl);
  padding: clamp(18px,4vw,28px);
  margin-bottom: 20px;
  position: relative;
  overflow: hidden;
}
.ld-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.18);
  border: 1px solid rgba(255,255,255,0.28);
  border-radius: var(--radius-sm);
  padding: 6px 13px;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  cursor: pointer;
  transition: background .15s;
}
.ld-back:hover { background: rgba(255,255,255,0.3); }
.ld-emoji { font-size: 44px; margin-bottom: 8px; }
.ld-title { font-family: var(--font-display); font-size: clamp(20px,4vw,28px); font-weight: 900; color: #fff; margin-bottom: 3px; }
.ld-theme { font-size: 13px; color: rgba(255,255,255,0.78); }

/* Tabs */
.tabs-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--glass-border);
}
.tab-btn {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  padding: 7px 16px;
  font-size: 12px;
  font-weight: 600;
  color: var(--tx2);
  cursor: pointer;
  transition: background var(--dur), color var(--dur), border-color var(--dur);
}
.tab-btn:hover { border-color: var(--c-primary); color: var(--tx1); }
.tab-btn.active { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }
.tab-pane { display: none; animation: pagein .3s var(--ease); }
.tab-pane.active { display: block; }

/* Vocab Grid */
.vocab-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px,1fr)); gap: 12px; }
.v-card {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 16px;
  transition: transform 0.15s, border-color var(--dur), box-shadow var(--dur);
  cursor: default;
}
.v-card:hover { transform: translateY(-3px); border-color: var(--c-primary); box-shadow: var(--shadow-md); }
.v-top { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 8px; }
.v-emoji { font-size: 30px; flex-shrink: 0; }
.v-main { flex: 1; min-width: 0; }
.v-art { font-size: 10px; font-weight: 800; padding: 2px 7px; border-radius: var(--radius-pill); display: inline-block; margin-bottom: 2px; }
.v-art.der { background: rgba(52,152,219,.2); color: #3498db; }
.v-art.die { background: rgba(231,76,60,.2); color: #e74c3c; }
.v-art.das { background: rgba(46,204,113,.2); color: #2ecc71; }
.v-word { font-family: var(--font-display); font-size: 20px; font-weight: 900; }
.v-ipa { font-size: 11px; color: var(--tx3); font-style: italic; margin-bottom: 5px; }
.v-en { font-size: 14px; color: var(--tx2); margin-bottom: 6px; }
.v-plural { font-size: 11px; color: var(--tx3); margin-bottom: 6px; }
.v-ex {
  font-size: 12px;
  color: var(--tx3);
  background: var(--glass);
  border-left: 3px solid var(--c-primary);
  padding: 6px 10px;
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
  font-style: italic;
  margin-bottom: 7px;
}
.v-hook {
  font-size: 11px;
  color: var(--c-gold);
  background: rgba(255,215,0,.07);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
}
.v-mastered-tag { position: absolute; top: 10px; right: 10px; font-size: 13px; }

/* Grammar Cards */
.g-card {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 20px;
  margin-bottom: 14px;
  transition: border-color var(--dur);
}
.g-card:hover { border-color: var(--c-primary); }
.g-card-head { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 13px; flex-wrap: wrap; }
.g-card-title { font-family: var(--font-display); font-size: 17px; font-weight: 800; flex: 1; }
.g-lvl-badge { font-size: 10px; font-weight: 700; padding: 3px 9px; border-radius: var(--radius-pill); text-transform: uppercase; letter-spacing: .5px; flex-shrink: 0; }
.g-lvl-badge.basic       { background: rgba(0,230,118,.18); color: #00E676; }
.g-lvl-badge.intermediate { background: rgba(255,159,67,.18); color: #FF9F43; }
.g-lvl-badge.advanced     { background: rgba(255,107,157,.18); color: #FF6B9D; }
.g-lvl-badge.review       { background: rgba(124,110,248,.18); color: #7C6EF8; }
.g-desc { font-size: 13px; color: var(--tx2); margin-bottom: 14px; }
.g-tip {
  background: rgba(255,215,0,.07);
  border: 1px solid rgba(255,215,0,.2);
  border-radius: var(--radius-sm);
  padding: 9px 13px;
  font-size: 12px;
  color: var(--c-gold);
  margin-top: 12px;
}

/* German Table */
.de-table { width: 100%; border-collapse: collapse; font-size: 13px; margin-bottom: 10px; overflow: hidden; border-radius: var(--radius-sm); }
.de-table th { background: rgba(124,110,248,.12); border: 1px solid var(--glass-border); padding: 9px 12px; text-align: left; font-weight: 700; color: var(--c-primary); }
.de-table td { border: 1px solid var(--glass-border); padding: 9px 12px; color: var(--tx2); }
.de-table tr:hover td { background: var(--glass); }

/* Grammar Examples */
.g-examples { margin-top: 12px; display: flex; flex-direction: column; gap: 6px; }
.g-ex { background: var(--glass); border-left: 3px solid var(--c-teal); padding: 7px 11px; border-radius: 0 var(--radius-xs) var(--radius-xs) 0; font-size: 12px; color: var(--tx2); font-style: italic; }
.g-list-item { background: var(--glass); border-left: 3px solid var(--c-primary); padding: 7px 11px; border-radius: 0 var(--radius-xs) var(--radius-xs) 0; font-size: 12px; color: var(--tx2); margin-bottom: 5px; }

/* Dialogue Cards */
.dial-card { background: var(--bg2); border: 1px solid var(--glass-border); border-radius: var(--radius-xl); padding: 20px; margin-bottom: 14px; }
.dial-title { font-family: var(--font-display); font-size: 17px; font-weight: 800; margin-bottom: 4px; }
.dial-scene { font-size: 12px; color: var(--tx3); font-style: italic; margin-bottom: 18px; border-bottom: 1px solid var(--glass-border); padding-bottom: 10px; }
.dial-lines { display: flex; flex-direction: column; gap: 11px; }
.dial-line { display: flex; gap: 10px; align-items: flex-start; }
.dial-line.r { flex-direction: row-reverse; }
.dial-spk { font-size: 10px; font-weight: 800; color: var(--c-primary); min-width: 75px; text-align: right; padding-top: 4px; flex-shrink: 0; }
.dial-line.r .dial-spk { color: var(--c-secondary); text-align: left; }
.dial-bubble {
  background: var(--bg3);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  border-top-left-radius: 4px;
  padding: 9px 13px;
  max-width: min(72%, 480px);
}
.dial-line.r .dial-bubble { border-radius: var(--radius-md); border-top-right-radius: 4px; background: rgba(124,110,248,.1); border-color: rgba(124,110,248,.2); }
.dial-de { font-size: 13px; font-weight: 600; color: var(--tx1); margin-bottom: 3px; }
.dial-en { font-size: 11px; color: var(--tx3); font-style: italic; }

/* ════════════════════════════════════════
   FLASHCARDS
════════════════════════════════════════ */
.fc-controls { margin-bottom: 20px; }
.fc-ctrl-row {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.select-wrap { display: flex; flex-direction: column; gap: 4px; }
.select-wrap label { font-size: 11px; color: var(--tx3); font-weight: 600; text-transform: uppercase; letter-spacing: .5px; }
.sel {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 9px 13px;
  font-size: 13px;
  color: var(--tx1);
  outline: none;
  cursor: pointer;
  transition: border-color var(--dur);
  min-width: 140px;
}
.sel:hover, .sel:focus { border-color: var(--c-primary); }
.fc-stats-row { display: flex; gap: 8px; flex-wrap: wrap; }
.fc-chip {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  padding: 5px 12px;
  font-size: 12px;
  color: var(--tx2);
}
.fc-chip.green { border-color: rgba(0,230,118,.3); color: var(--c-green); }
.fc-chip.red { border-color: rgba(255,82,82,.3); color: var(--c-red); }

/* 3D Flashcard */
.fc-scene {
  perspective: 1000px;
  max-width: 480px;
  height: 280px;
  margin: 0 auto 20px;
  width: 100%;
}
.flashcard-3d {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform .6s cubic-bezier(.4,0,.2,1);
  cursor: pointer;
  border-radius: var(--radius-xl);
}
.flashcard-3d.flipped { transform: rotateY(180deg); }
.fc-face {
  position: absolute;
  width: 100%; height: 100%;
  backface-visibility: hidden;
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  text-align: center;
}
.fc-front { background: linear-gradient(135deg,#1a1a2e,#2a2a46); border: 2px solid var(--c-primary); box-shadow: var(--shadow-glow); }
.fc-back { background: linear-gradient(135deg,rgba(124,110,248,.14),rgba(255,107,157,.12)); border: 2px solid var(--c-secondary); transform: rotateY(180deg); }
.fc-kap-tag { position: absolute; top: 12px; left: 12px; font-size: 9px; color: var(--tx3); background: var(--glass); padding: 2px 7px; border-radius: var(--radius-pill); }
.fc-emoji-big { font-size: 44px; margin-bottom: 10px; }
.fc-word-big { font-family: var(--font-display); font-size: clamp(22px,5vw,32px); font-weight: 900; margin-bottom: 4px; }
.fc-art { font-size: 15px; font-weight: 700; color: var(--c-primary); margin-bottom: 4px; }
.fc-ipa { font-size: 13px; color: var(--tx3); font-style: italic; margin-bottom: 10px; }
.fc-tap-hint { font-size: 11px; color: var(--tx3); position: absolute; bottom: 14px; }
.fc-transl { font-family: var(--font-display); font-size: clamp(18px,4vw,26px); font-weight: 800; margin-bottom: 10px; }
.fc-ex { font-size: 13px; color: var(--tx2); font-style: italic; margin-bottom: 10px; max-width: 90%; }
.fc-hook-box { font-size: 12px; color: var(--c-gold); background: rgba(255,215,0,.08); padding: 7px 12px; border-radius: var(--radius-sm); max-width: 90%; display: flex; align-items: flex-start; gap: 6px; }

/* Rate Buttons */
.fc-rate-row { display: flex; gap: 14px; justify-content: center; margin-bottom: 16px; flex-wrap: wrap; }
.fc-rate-btn {
  padding: 13px 28px;
  border: 2px solid;
  border-radius: var(--radius-lg);
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.15s, background var(--dur);
  flex: 1;
  max-width: 200px;
}
.fc-wrong { background: rgba(255,82,82,.1); color: var(--c-red); border-color: rgba(255,82,82,.3); }
.fc-wrong:hover { background: rgba(255,82,82,.22); transform: scale(1.04); }
.fc-right { background: rgba(0,230,118,.1); color: var(--c-green); border-color: rgba(0,230,118,.3); }
.fc-right:hover { background: rgba(0,230,118,.22); transform: scale(1.04); }

/* Progress */
.fc-prog-wrap { max-width: 480px; margin: 0 auto; }
.fc-prog-track { height: 5px; background: rgba(255,255,255,.08); border-radius: var(--radius-pill); overflow: hidden; }
.fc-prog-fill { height: 100%; background: var(--grad-primary); border-radius: var(--radius-pill); transition: width .5s var(--ease); }

/* Session Done */
.fc-done { text-align: center; padding: 32px 16px; max-width: 480px; margin: 0 auto; }
.fc-done-icon { font-size: 56px; margin-bottom: 14px; }
.fc-done h2 { font-family: var(--font-display); font-size: 24px; font-weight: 800; margin-bottom: 20px; }
.fc-done-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin-bottom: 24px; }
.fc-done-stat { background: var(--bg2); border-radius: var(--radius-md); padding: 14px 8px; }
.fds-num { font-family: var(--font-display); font-size: 28px; font-weight: 900; margin-bottom: 4px; }
.fds-num.green { color: var(--c-green); }
.fds-num.red { color: var(--c-red); }
.fc-done-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* ════════════════════════════════════════
   LISTENING
════════════════════════════════════════ */
#audio-list { display: flex; flex-direction: column; gap: 10px; }
.aud-chapter-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 0 6px;
  border-bottom: 1px solid var(--glass-border);
  margin-bottom: 8px;
}
.aud-ch-emoji { font-size: 22px; }
.aud-ch-title { font-family: var(--font-display); font-size: 15px; font-weight: 700; }
.aud-ch-count { font-size: 11px; color: var(--tx3); }
.aud-item {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
  transition: border-color var(--dur);
}
.aud-item:hover { border-color: var(--c-primary); }
.aud-item-top { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.aud-ico {
  width: 40px; height: 40px;
  background: var(--grad-blue);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.aud-info { flex: 1; min-width: 0; }
.aud-title { font-weight: 700; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.aud-subtitle { font-size: 11px; color: var(--tx3); }
.aud-done-btn {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  padding: 5px 12px;
  font-size: 11px;
  font-weight: 700;
  color: var(--tx2);
  cursor: pointer;
  transition: border-color var(--dur), color var(--dur);
  flex-shrink: 0;
}
.aud-done-btn:hover { border-color: var(--c-green); color: var(--c-green); }
.aud-player {
  width: 100%;
  height: 38px;
  border-radius: var(--radius-sm);
  outline: none;
  margin-bottom: 8px;
}
.aud-ex-toggle {
  background: none;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  padding: 5px 12px;
  font-size: 11px;
  color: var(--tx3);
  cursor: pointer;
  transition: border-color var(--dur), color var(--dur);
}
.aud-ex-toggle:hover { border-color: var(--c-primary); color: var(--tx1); }
.aud-exercises {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 14px;
  margin-top: 10px;
}

/* ════════════════════════════════════════
   QUIZ
════════════════════════════════════════ */
.setup-card {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 28px;
  max-width: 480px;
  margin: 0 auto;
}
.setup-card h2 { font-family: var(--font-display); font-size: 20px; font-weight: 800; margin-bottom: 20px; text-align: center; }
.setup-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.setup-row label { font-size: 13px; font-weight: 600; color: var(--tx2); flex-shrink: 0; }
.setup-row .sel { flex: 1; min-width: 0; }

.quiz-hdr { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; gap: 8px; flex-wrap: wrap; }
.quiz-timer-chip { background: var(--bg2); border: 1px solid var(--glass-border); border-radius: var(--radius-pill); padding: 5px 12px; font-size: 13px; font-weight: 700; }
.quiz-prog-txt { font-size: 13px; color: var(--tx2); font-weight: 600; }
.quiz-score-chip { font-size: 13px; font-weight: 700; color: var(--c-gold); }
.quiz-prog-track { height: 5px; background: rgba(255,255,255,.08); border-radius: var(--radius-pill); overflow: hidden; margin-bottom: 20px; }
.quiz-prog-fill { height: 100%; background: var(--grad-primary); border-radius: var(--radius-pill); transition: width .5s var(--ease); }

.quiz-card {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: clamp(18px,4vw,28px);
  max-width: 620px;
  margin: 0 auto;
}
.qz-type-lbl { font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--c-primary); margin-bottom: 10px; }
.qz-question { font-family: var(--font-display); font-size: clamp(16px,3vw,20px); font-weight: 700; color: var(--tx1); margin-bottom: 20px; line-height: 1.45; }
.qz-options { display: flex; flex-direction: column; gap: 9px; }
.qz-option {
  background: var(--glass);
  border: 2px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 13px 18px;
  font-size: 14px;
  font-weight: 500;
  color: var(--tx1);
  cursor: pointer;
  text-align: left;
  width: 100%;
  transition: border-color var(--dur), background var(--dur), transform 0.1s;
}
.qz-option:hover:not(:disabled) { border-color: var(--c-primary); background: rgba(124,110,248,.1); transform: translateX(3px); }
.qz-option.correct { border-color: var(--c-green) !important; background: rgba(0,230,118,.1) !important; color: var(--c-green); }
.qz-option.wrong   { border-color: var(--c-red) !important; background: rgba(255,82,82,.1) !important; color: var(--c-red); }
.qz-option:disabled { cursor: not-allowed; }

.qz-fill-row { display: flex; gap: 10px; flex-wrap: wrap; }
.qz-fill-input {
  flex: 1;
  min-width: 200px;
  background: var(--glass);
  border: 2px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 13px 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--tx1);
  outline: none;
  transition: border-color var(--dur);
}
.qz-fill-input:focus { border-color: var(--c-primary); }
.qz-fill-input.correct { border-color: var(--c-green); }
.qz-fill-input.wrong   { border-color: var(--c-red); }

.qz-explanation {
  margin-top: 14px;
  background: rgba(124,110,248,.07);
  border: 1px solid rgba(124,110,248,.2);
  border-radius: var(--radius-md);
  padding: 13px;
  font-size: 13px;
  color: var(--tx2);
  animation: pagein .3s var(--ease);
}
.qz-next-btn { margin-top: 14px; width: 100%; }

/* Quiz Results */
#quiz-results-panel {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: clamp(24px,5vw,40px);
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
}
.qr-score { font-family: var(--font-display); font-size: clamp(52px,10vw,72px); font-weight: 900; margin-bottom: 6px; }
.qr-msg { font-size: 18px; color: var(--tx2); margin-bottom: 24px; }
.qr-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin-bottom: 24px; }
.qr-stat { background: var(--glass); border-radius: var(--radius-md); padding: 14px 8px; }
.qr-stat-num { font-family: var(--font-display); font-size: 24px; font-weight: 900; margin-bottom: 4px; }
.qr-stat-lbl { font-size: 11px; color: var(--tx3); }
.qr-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* ════════════════════════════════════════
   EXAM PAGE
════════════════════════════════════════ */
.exam-readiness-card {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 22px;
  flex-wrap: wrap;
}
.ex-ring-wrap { position: relative; flex-shrink: 0; }
.ex-ring-pct { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); font-family: var(--font-display); font-size: 22px; font-weight: 900; }
.ex-ring-lbl { font-size: 12px; color: var(--tx3); margin-top: 6px; text-align: center; }
.ex-details { flex: 1; min-width: 200px; display: flex; flex-direction: column; gap: 10px; }
.ex-detail-row { display: flex; align-items: center; gap: 10px; }
.ex-detail-label { font-size: 12px; color: var(--tx2); flex: 1; }
.ex-detail-bar { width: 90px; height: 5px; background: rgba(255,255,255,.08); border-radius: var(--radius-pill); overflow: hidden; flex-shrink: 0; }
.ex-detail-fill { height: 100%; background: var(--grad-primary); border-radius: var(--radius-pill); }
.ex-detail-pct { font-size: 12px; font-weight: 700; width: 34px; text-align: right; flex-shrink: 0; }

.exam-sections-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(220px,1fr)); gap: 12px; margin-bottom: 22px; }
.exam-sec-card {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 18px;
  cursor: pointer;
  transition: transform 0.15s, border-color var(--dur), box-shadow var(--dur);
}
.exam-sec-card:hover { transform: translateY(-3px); border-color: var(--c-primary); box-shadow: var(--shadow-glow); }
.exam-sec-icon { font-size: 30px; margin-bottom: 8px; }
.exam-sec-title { font-family: var(--font-display); font-size: 15px; font-weight: 800; margin-bottom: 3px; }
.exam-sec-time { font-size: 11px; color: var(--tx3); margin-bottom: 10px; }
.exam-sec-parts { font-size: 12px; color: var(--tx2); line-height: 1.6; }

.mock-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(200px,1fr)); gap: 12px; margin-bottom: 22px; }
.mock-card {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 18px;
  text-align: center;
  cursor: pointer;
  transition: transform 0.15s, border-color var(--dur);
}
.mock-card:hover { transform: translateY(-3px); border-color: var(--c-primary); }
.mock-card-icon { font-size: 32px; margin-bottom: 8px; }
.mock-card-name { font-weight: 800; font-size: 14px; margin-bottom: 4px; }
.mock-card-desc { font-size: 11px; color: var(--tx3); margin-bottom: 12px; }

/* ════════════════════════════════════════
   PROGRESS PAGE
════════════════════════════════════════ */
.prog-overview { display: grid; grid-template-columns: repeat(auto-fill,minmax(180px,1fr)); gap: 12px; margin-bottom: 22px; }
.prog-metric {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 18px;
}
.prog-metric-lbl { font-size: 11px; color: var(--tx3); margin-bottom: 6px; }
.prog-metric-val { font-family: var(--font-display); font-size: 26px; font-weight: 900; margin-bottom: 8px; }
.prog-metric-bar { height: 5px; background: rgba(255,255,255,.08); border-radius: var(--radius-pill); overflow: hidden; }
.prog-metric-fill { height: 100%; border-radius: var(--radius-pill); transition: width 1s var(--ease); }

.prog-ch-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 22px; }
.prog-ch-row {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.prog-ch-emoji { font-size: 20px; flex-shrink: 0; }
.prog-ch-name { flex: 1; font-weight: 600; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.prog-ch-pct { font-weight: 700; font-size: 13px; color: var(--tx2); flex-shrink: 0; }
.prog-ch-bar-wrap { width: 90px; flex-shrink: 0; }
.prog-ch-bar { height: 5px; background: rgba(255,255,255,.08); border-radius: var(--radius-pill); overflow: hidden; }
.prog-ch-fill { height: 100%; border-radius: var(--radius-pill); }

.sr-schedule-section { margin-bottom: 22px; }
.sr-list { display: flex; flex-direction: column; gap: 7px; }
.sr-row {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.sr-word { font-weight: 700; flex: 1; font-size: 13px; }
.sr-date { font-size: 11px; color: var(--tx3); }
.sr-interval { font-size: 10px; color: var(--c-primary); background: rgba(124,110,248,.1); padding: 2px 7px; border-radius: var(--radius-pill); }

.personal-bests { margin-bottom: 22px; }
.pb-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(180px,1fr)); gap: 10px; }
.pb-card {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 14px;
}
.pb-card-label { font-size: 11px; color: var(--tx3); margin-bottom: 4px; }
.pb-card-val { font-family: var(--font-display); font-size: 20px; font-weight: 900; color: var(--c-gold); margin-bottom: 2px; }
.pb-card-date { font-size: 10px; color: var(--tx3); }

.quiz-history-section { margin-bottom: 22px; }
.qh-list { display: flex; flex-direction: column; gap: 7px; }
.qh-row {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.qh-score { font-family: var(--font-display); font-size: 18px; font-weight: 900; flex-shrink: 0; width: 52px; }
.qh-date { font-size: 11px; color: var(--tx3); flex: 1; }
.qh-time { font-size: 11px; color: var(--tx3); flex-shrink: 0; }

/* ════════════════════════════════════════
   OVERLAYS & MODALS
════════════════════════════════════════ */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.82);
  backdrop-filter: blur(10px);
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  animation: fadein .3s var(--ease);
}
.overlay.hidden { display: none; }
@keyframes fadein { from { opacity:0; } to { opacity:1; } }

.ob-modal {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: clamp(24px,5vw,40px);
  max-width: 460px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  animation: modal-in .4s cubic-bezier(.4,0,.2,1);
  max-height: 90vh;
  overflow-y: auto;
}
@keyframes modal-in { from { opacity:0; transform: scale(.92) translateY(20px); } to { opacity:1; transform: scale(1) translateY(0); } }
.ob-flag { font-size: 52px; text-align: center; margin-bottom: 14px; }
.ob-title { font-family: var(--font-display); font-size: clamp(20px,4vw,26px); font-weight: 900; text-align: center; margin-bottom: 8px; }
.ob-desc { font-size: 13px; color: var(--tx2); text-align: center; margin-bottom: 18px; }
.ob-features { display: grid; grid-template-columns: repeat(2,1fr); gap: 8px; margin-bottom: 20px; }
.ob-feat {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--glass);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  font-size: 12px;
  color: var(--tx2);
}
.ob-feat span:first-child { font-size: 16px; }
.ob-name-row { margin-bottom: 16px; }
.ob-name-row label { display: block; font-size: 12px; font-weight: 600; color: var(--tx2); margin-bottom: 6px; }
.ob-name-row input {
  width: 100%;
  background: var(--glass);
  border: 2px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 16px;
  color: var(--tx1);
  outline: none;
  transition: border-color var(--dur);
}
.ob-name-row input:focus { border-color: var(--c-primary); }

/* XP Float */
.xp-float {
  position: fixed;
  top: 70px;
  right: 20px;
  background: var(--grad-primary);
  color: #fff;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 900;
  padding: 9px 18px;
  border-radius: var(--radius-pill);
  z-index: 150;
  opacity: 0;
  transform: translateY(0);
  pointer-events: none;
  transition: opacity .3s, transform 1.2s var(--ease);
}
.xp-float.show { opacity: 1; transform: translateY(-36px); }

/* Achievement Toast */
.ach-toast {
  position: fixed;
  bottom: 80px;
  right: 16px;
  background: var(--bg2);
  border: 2px solid var(--c-gold);
  border-radius: var(--radius-lg);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-lg);
  z-index: 140;
  transform: translateX(calc(100% + 24px));
  transition: transform .5s cubic-bezier(.4,0,.2,1);
  max-width: 300px;
}
.ach-toast.show { transform: translateX(0); }
.ach-toast-icon { font-size: 30px; flex-shrink: 0; }
.ach-toast-title { font-weight: 800; font-size: 13px; color: var(--c-gold); }
.ach-toast-sub { font-size: 11px; color: var(--tx2); margin-top: 2px; }

/* Personal Best Toast — slides UP from bottom, never touches topbar */
.pb-toast {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%) translateY(120px);
  opacity: 0;
  pointer-events: none;
  background: linear-gradient(135deg,rgba(255,215,0,.18),rgba(255,165,0,.12));
  border: 2px solid var(--c-gold);
  border-radius: var(--radius-lg);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-lg);
  z-index: 140;
  transition: transform .45s cubic-bezier(.4,0,.2,1), opacity .35s ease;
  max-width: 340px;
  width: calc(100% - 40px);
}
.pb-toast.show { transform: translateX(-50%) translateY(0); opacity: 1; pointer-events: auto; }
.pb-toast-title { font-weight: 800; font-size: 13px; color: var(--c-gold); }
.pb-toast-sub { font-size: 11px; color: var(--tx2); }

/* Confetti */
#confetti-canvas { position: fixed; inset: 0; pointer-events: none; z-index: 130; }

/* ════════════════════════════════════════
   UTILITIES
════════════════════════════════════════ */
.mb-16 { margin-bottom: 16px; }
.mb-22 { margin-bottom: 22px; }
.text-center { text-align: center; }
.hidden { display: none !important; }
.green { color: var(--c-green); }
.red   { color: var(--c-red); }
.gold  { color: var(--c-gold); }

/* Animations */
@keyframes correct-flash { 0%,100% { background: transparent; } 50% { background: rgba(0,230,118,.15); } }
@keyframes wrong-shake { 0%,100% { transform: translateX(0); } 20% { transform: translateX(-8px); } 60% { transform: translateX(8px); } }
.anim-correct { animation: correct-flash .5s var(--ease); }
.anim-wrong   { animation: wrong-shake .4s var(--ease); }

/* Pulse for CTAs */
@keyframes pulse-glow {
  0%,100% { box-shadow: 0 0 0 0 rgba(124,110,248,.45); }
  50%      { box-shadow: 0 0 0 10px rgba(124,110,248,0); }
}
.pulsing { animation: pulse-glow 2s infinite; }

/* ════════════════════════════════════════
   RESPONSIVE — Tablet (≤ 900px)
════════════════════════════════════════ */
@media (max-width: 900px) {
  :root { --sidebar-w: 0px; }

  .sidebar {
    transform: translateX(-252px);
    width: 252px;
  }
  .sidebar.open {
    transform: translateX(0);
    width: 252px;
  }
  .sidebar-backdrop.show { display: block; }
  .sidebar-close-btn { display: flex; }

  .app-shell { margin-left: 0; }
  .hamburger { display: flex; }
  .bottom-nav { display: flex; }

  .pages-wrap { padding-bottom: calc(var(--bottom-nav-h) + 4px); }

  .page-inner { padding: 14px 12px 28px; }

  .stats-row { gap: 8px; }
  .stat-pill { min-width: 88px; padding: 12px; }
  .stat-val { font-size: 18px; }

  .chapter-grid { grid-template-columns: repeat(auto-fill,minmax(140px,1fr)); }
  .vocab-grid { grid-template-columns: 1fr; }

  .exam-sections-grid { grid-template-columns: repeat(2,1fr); }

  .ob-features { grid-template-columns: 1fr; }
}

/* ════════════════════════════════════════
   RESPONSIVE — Mobile (≤ 560px)
════════════════════════════════════════ */
@media (max-width: 560px) {
  .hero-banner { flex-direction: column; align-items: flex-start; }
  .hero-char { flex-direction: row; }

  .continue-card { flex-direction: column; align-items: flex-start; }
  .continue-right { flex-direction: row; align-items: center; gap: 14px; }

  .fc-scene { height: 240px; }
  .fc-word-big { font-size: 22px; }
  .fc-rate-row { gap: 10px; }
  .fc-rate-btn { padding: 12px 16px; font-size: 13px; }

  .qr-stats { grid-template-columns: 1fr; }
  .fc-done-grid { grid-template-columns: 1fr; }

  .chapter-grid { grid-template-columns: repeat(2,1fr); }
  .badges-shelf { grid-template-columns: repeat(auto-fill,minmax(76px,1fr)); }

  .exam-sections-grid { grid-template-columns: 1fr; }
  .mock-grid { grid-template-columns: 1fr; }

  .ach-toast { right: 8px; left: 8px; max-width: 100%; }
  .xp-float { right: 10px; }

  .tabs-row .tab-btn { padding: 6px 12px; font-size: 11px; }

  .setup-row { flex-direction: column; align-items: flex-start; }
  .setup-row .sel { width: 100%; min-width: 0; }

  .qz-fill-row { flex-direction: column; }
  .qz-fill-input { min-width: 0; width: 100%; }
}

/* ════════════════════════════════════════
   RESPONSIVE — Large (≥ 1280px)
════════════════════════════════════════ */
@media (min-width: 1280px) {
  .page-inner { padding: 24px 32px 40px; }
  .chapter-grid { grid-template-columns: repeat(4,1fr); }
  .stats-row { gap: 14px; }
}

/* ════════════════════════════════════════
   SCROLLBARS
════════════════════════════════════════ */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,.12); border-radius: var(--radius-pill); }
::-webkit-scrollbar-thumb:hover { background: var(--c-primary); }

/* ════════════════════════════════════════
   PRINT / Reduced Motion
════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* Floating Audio Player Bar */
.floating-player-bar {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: rgba(18, 18, 30, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  z-index: 160;
  width: auto;
  min-width: 320px;
  max-width: 450px;
  animation: slideUp 0.4s var(--ease) forwards;
  color: var(--tx1);
}

@keyframes slideUp {
  from { transform: translateY(100px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.fp-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.fp-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.fp-info {
  display: flex;
  flex-direction: column;
}

.fp-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--tx1);
}

.fp-sub {
  font-size: 11px;
  color: var(--tx3);
  margin-top: 2px;
}

/* Sound Wave Animation */
.fp-wave {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 20px;
}
.fp-wave span {
  width: 3px;
  background: var(--c-primary);
  border-radius: 2px;
  animation: bounce 0.8s ease-in-out infinite alternate;
}
.fp-wave span:nth-child(2) { animation-delay: 0.15s; background: var(--c-teal); }
.fp-wave span:nth-child(3) { animation-delay: 0.3s; background: var(--c-pink); }
.fp-wave span:nth-child(4) { animation-delay: 0.45s; background: var(--c-orange); }

@keyframes bounce {
  from { height: 4px; }
  to { height: 18px; }
}

.fp-stop-btn {
  padding: 6px 14px;
  font-size: 11px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #ff4b5c, #ff2a4b);
  border: none;
  color: white;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(255, 75, 92, 0.3);
  transition: transform 0.2s, box-shadow 0.2s;
}
.fp-stop-btn:hover {
  transform: scale(1.03);
  box-shadow: 0 6px 16px rgba(255, 75, 92, 0.4);
}