/* =========================================================================
   CHAPTER A STUDY HUB — Stylesheet
   Aesthetic: Modern Scholar — Editorial warmth meets gamified clarity
   ========================================================================= */

:root {
  /* --- Palette: Focused Dark --- */
  --cream:        #0B1014;
  --cream-deep:   #1B232C;
  --paper:        #14191F;
  --ink:          #F1F5F9;
  --ink-muted:    #94A3B8;
  --ink-soft:     #64748B;
  --line:         rgba(255,255,255,0.08);

  --forest:       #A3E635;
  --forest-dark:  #84CC16;
  --forest-light: #BEF264;

  /* Lime is the new amber */
  --amber:        #A3E635;
  --amber-light:  #BEF264;
  --amber-soft:   rgba(163,230,53,0.12);
  --amber-deep:   #84CC16;

  /* Coral kept for errors only */
  --terra:        #F87171;
  --terra-light:  #FCA5A5;
  --terra-soft:   rgba(248,113,113,0.12);
  --terra-deep:   #DC2626;

  /* Lime doubles as success too */
  --mint:         #A3E635;
  --mint-soft:    rgba(163,230,53,0.12);
  --gold:         #FCD34D;
  --gold-soft:    rgba(252,211,77,0.14);

  --indigo:       #818CF8;
  --indigo-soft:  rgba(129,140,248,0.14);
  --violet:       #C084FC;
  --violet-soft:  rgba(192,132,252,0.14);
  --pink:         #F472B6;
  --sky:          #38BDF8;

  --success:      #A3E635;
  --success-soft: rgba(163,230,53,0.12);
  --danger:       #F87171;
  --danger-soft:  rgba(248,113,113,0.12);

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.30), 0 2px 4px rgba(0,0,0,0.20);
  --shadow-md: 0 4px 8px rgba(0,0,0,0.35), 0 10px 24px rgba(0,0,0,0.25);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.45), 0 24px 60px rgba(0,0,0,0.35);
  --shadow-glow: 0 0 0 4px rgba(163,230,53,0.18);

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', Menlo, monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
}

/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
button:focus-visible { outline: 2px solid var(--forest); outline-offset: 2px; }
input { font-family: inherit; font-size: 16px; }
em { font-style: italic; }
strong { font-weight: 700; }

/* When merged into the portal, hide the study tool's own topbar — portal owns the header */
.topbar { display: none !important; }

/* ===== VIEWS ===== */
.view { display: none; min-height: calc(100vh - 156px); }
.view.active { display: block; }
.view-auth.active, .view-quiz.active { display: flex; }

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 22px 24px 32px;
}
@media (max-width: 720px) {
  .container { padding: 16px 16px 40px; }
}

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px;
  background: var(--forest);
  color: var(--cream);
  border-radius: 999px;
  font-weight: 600; font-size: 15px;
  letter-spacing: 0.01em;
  transition: all 0.2s ease;
  box-shadow: 0 2px 0 var(--forest-dark), var(--shadow-sm);
}
.btn-primary:hover:not(:disabled) { transform: translateY(-1px); box-shadow: 0 3px 0 var(--forest-dark), var(--shadow-md); }
.btn-primary:active:not(:disabled) { transform: translateY(1px); box-shadow: 0 1px 0 var(--forest-dark); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-ghost {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 22px;
  background: transparent;
  color: var(--forest);
  border: 1.5px solid var(--forest);
  border-radius: 999px;
  font-weight: 600; font-size: 15px;
  transition: all 0.2s ease;
}
.btn-ghost:hover { background: var(--forest); color: var(--cream); }

.btn-danger {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 20px;
  background: var(--danger-soft);
  color: var(--danger);
  border-radius: 999px;
  font-weight: 600; font-size: 14px;
  transition: all 0.2s ease;
}
.btn-danger:hover { background: var(--danger); color: white; }

.btn-block { width: 100%; justify-content: center; padding: 16px 22px; font-size: 16px; }

.link-btn {
  color: var(--forest);
  font-weight: 600; font-size: 14px;
  text-decoration: none;
  border-bottom: 1.5px solid transparent;
  transition: border-color 0.2s;
}
.link-btn:hover { border-bottom-color: var(--forest); }

/* ===== AUTH VIEW ===== */
.view-auth {
  position: relative;
  min-height: 100vh;
  align-items: center; justify-content: center;
  padding: 24px;
}
.auth-bg {
  position: absolute; inset: 0;
  overflow: hidden;
  z-index: 0;
  background:
    radial-gradient(ellipse at top left, rgba(26,77,63,0.08), transparent 50%),
    radial-gradient(ellipse at bottom right, rgba(196,118,46,0.08), transparent 50%),
    var(--cream);
}
.auth-bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}
.auth-bg-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
}
.blob-1 {
  width: 400px; height: 400px;
  background: var(--mint);
  top: -100px; left: -100px;
  animation: blob-float 18s ease-in-out infinite;
}
.blob-2 {
  width: 350px; height: 350px;
  background: var(--amber);
  bottom: -100px; right: -100px;
  animation: blob-float 22s ease-in-out infinite reverse;
}
@keyframes blob-float {
  0%, 100% { transform: translate(0,0) scale(1); }
  50% { transform: translate(30px, 40px) scale(1.08); }
}

.auth-container {
  position: relative; z-index: 1;
  width: 100%; max-width: 460px;
}
.auth-brand {
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 28px;
  color: var(--forest);
}
.brand-mark { color: var(--forest); }
.brand-text { line-height: 1.1; }
.brand-name {
  font-family: var(--font-display);
  font-size: 26px; font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.brand-tag {
  font-size: 12px; font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
  margin-top: 2px;
}

.auth-card {
  background: var(--paper);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--line);
}
.auth-tabs {
  display: flex;
  background: var(--cream-deep);
  border-radius: 999px;
  padding: 4px;
  margin-bottom: 28px;
}
.auth-tab {
  flex: 1; padding: 10px 16px;
  font-weight: 600; font-size: 14px;
  color: var(--ink-muted);
  border-radius: 999px;
  transition: all 0.25s ease;
}
.auth-tab.active { background: var(--paper); color: var(--forest); box-shadow: var(--shadow-sm); }

.auth-title {
  font-family: var(--font-display);
  font-size: 32px; font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--ink);
  margin-bottom: 8px;
}
.auth-sub { color: var(--ink-muted); margin-bottom: 24px; font-size: 15px; }

.field { display: block; margin-bottom: 18px; }
.field span {
  display: block;
  font-size: 13px; font-weight: 600;
  color: var(--ink-muted);
  margin-bottom: 6px;
}
.field input {
  display: block; width: 100%;
  padding: 14px 16px;
  background: var(--cream);
  border: 1.5px solid var(--line);
  border-radius: var(--radius-md);
  color: var(--ink);
  transition: all 0.2s ease;
}
.field input:focus {
  outline: none;
  border-color: var(--forest);
  background: var(--paper);
  box-shadow: var(--shadow-glow);
}

.auth-error {
  display: none;
  padding: 10px 14px;
  background: var(--danger-soft);
  color: var(--danger);
  border-radius: var(--radius-md);
  font-size: 14px;
  margin-bottom: 16px;
}
.auth-error.show { display: block; }

.auth-hint {
  margin-top: 18px;
  padding: 12px 14px;
  background: var(--amber-soft);
  color: var(--amber);
  border-radius: var(--radius-md);
  font-size: 13px; line-height: 1.5;
}

.auth-footer {
  text-align: center;
  margin-top: 24px;
  font-size: 12px;
  color: var(--ink-soft);
  letter-spacing: 0.05em;
}

/* ===== TOP NAV ===== */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11,16,20,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex; align-items: center; gap: 24px;
}
.brand-pill {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-display);
  font-weight: 700; font-size: 18px;
  color: var(--forest);
  letter-spacing: -0.01em;
}
.topbar-nav { display: flex; gap: 4px; margin-left: 16px; }
.nav-link {
  padding: 9px 18px;
  font-size: 14px; font-weight: 600;
  color: var(--ink-muted);
  border-radius: 999px;
  transition: all 0.2s ease;
}
.nav-link:hover { color: var(--ink); background: var(--cream-deep); }
.nav-link.active {
  color: var(--cream);
  background: var(--forest);
}

.topbar-user {
  margin-left: auto;
  display: flex; align-items: center; gap: 10px;
  position: relative;
}
.streak-pill, .xp-pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 13px;
  border-radius: 999px;
  font-weight: 800; font-size: 14px;
  font-family: var(--font-mono);
}
.streak-pill {
  background: var(--terra-soft);
  color: var(--terra);
  border: 1px solid rgba(248,113,113,0.20);
}
.xp-pill {
  background: var(--amber-soft);
  color: var(--amber);
  border: 1px solid rgba(163,230,53,0.20);
}
.streak-pill .streak-icon { animation: flame 1.5s ease-in-out infinite; }
@keyframes flame {
  0%, 100% { transform: scale(1) rotate(-2deg); }
  50% { transform: scale(1.20) rotate(2deg); }
}

.user-avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--forest), var(--forest-light));
  color: var(--cream);
  font-weight: 700; font-size: 15px;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
  box-shadow: 0 2px 8px rgba(26,77,63,0.25);
}
.user-avatar:hover { transform: scale(1.08); box-shadow: 0 4px 14px rgba(26,77,63,0.35); }

.user-menu {
  position: absolute;
  top: calc(100% + 12px); right: 0;
  width: 240px;
  background: var(--paper);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--line);
  padding: 8px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition: all 0.2s ease;
}
.user-menu.open { opacity: 1; pointer-events: all; transform: translateY(0); }
.user-menu-header {
  padding: 12px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 6px;
}
.user-menu-name { font-weight: 700; font-size: 14px; color: var(--ink); }
.user-menu-email { font-size: 12px; color: var(--ink-muted); margin-top: 2px; word-break: break-all; }
.user-menu-item {
  display: flex; align-items: center; gap: 10px;
  width: 100%; padding: 10px 12px;
  font-size: 14px; font-weight: 500;
  color: var(--ink);
  border-radius: var(--radius-sm);
  transition: background 0.15s;
}
.user-menu-item:hover { background: var(--cream-deep); }
.user-menu-item em { color: var(--amber); font-weight: 600; font-style: normal; }
.user-menu-danger { color: var(--danger); }
.user-menu-danger:hover { background: var(--danger-soft); }

@media (max-width: 720px) {
  .topbar-inner { gap: 8px; padding: 10px 14px; }
  .topbar-nav { display: none; }
  .brand-pill span { display: none; }
  .streak-pill, .xp-pill { padding: 6px 10px; font-size: 13px; }
  .user-avatar { width: 34px; height: 34px; }
}

/* ===== MOBILE BOTTOM NAV (only mobile) ===== */
.mobile-nav {
  display: none;
  position: fixed; bottom: 0; left: 0; right: 0;
  background: rgba(250,247,242,0.95);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--line);
  padding: 8px 8px calc(8px + env(safe-area-inset-bottom));
  z-index: 50;
  justify-content: space-around;
}
.mobile-nav-item {
  flex: 1;
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 6px 4px;
  font-size: 10px; font-weight: 600;
  color: var(--ink-muted);
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}
.mobile-nav-item.active { color: var(--forest); }
.mobile-nav-icon { font-size: 20px; }
@media (max-width: 720px) {
  .mobile-nav { display: flex; }
  body { padding-bottom: 70px; }
}

/* ===== DASHBOARD ===== */
.hero {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
  padding: 20px 0 16px;
}
@media (max-width: 720px) { .hero { grid-template-columns: 1fr; gap: 18px; padding: 14px 0; } }

.hero-time {
  font-size: 14px;
  color: var(--ink-muted);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.hero-name {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin: 6px 0 12px;
}
.hero-name::after { content: '.'; color: var(--amber); }
.hero-motivation { font-size: 17px; color: var(--ink-muted); max-width: 480px; }

.hero-level-card {
  background: var(--paper);
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 18px 22px;
  border-radius: var(--radius-lg);
  min-width: 240px;
  position: relative;
  overflow: hidden;
}
.hero-level-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--forest);
}
.hero-level-card::after {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 180px; height: 180px;
  background: radial-gradient(circle, rgba(163,230,53,0.08), transparent 65%);
  border-radius: 50%;
}
.hero-level-rank {
  font-family: var(--font-display);
  font-size: 13px; font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--forest);
  margin-bottom: 8px;
  position: relative;
  z-index: 1;
}
.hero-level-xp {
  font-family: var(--font-mono);
  font-size: 40px; font-weight: 800;
  display: flex; align-items: baseline; gap: 6px;
  position: relative;
  z-index: 1;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.xp-label { font-size: 14px; opacity: 0.55; font-weight: 600; color: var(--ink-muted); }
.hero-level-bar {
  height: 8px;
  background: var(--cream-deep);
  border-radius: 999px;
  margin: 16px 0 10px;
  overflow: hidden;
  position: relative;
  z-index: 1;
}
.hero-level-bar-fill {
  height: 100%;
  background: var(--forest);
  border-radius: 999px;
  transition: width 0.6s cubic-bezier(0.4,0,0.2,1);
}
.hero-level-next { font-size: 12.5px; color: var(--ink-muted); font-weight: 500; position: relative; z-index: 1; }

/* Stats grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
  margin: 18px 0;
}
@media (max-width: 900px) { .stats-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 480px) { .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; } }

.stat-card {
  background: var(--paper);
  padding: 14px 14px 12px;
  border-radius: var(--radius-md);
  text-align: center;
  border: 1px solid var(--line);
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--forest);
  opacity: 0;
  transition: opacity 0.2s ease;
}
.stat-card:hover {
  border-color: rgba(163,230,53,0.30);
  transform: translateY(-2px);
}
.stat-card:hover::before { opacity: 0.6; }
.stat-card--accent {
  border-color: rgba(163,230,53,0.30);
}
.stat-card--accent::before { opacity: 1; }
.stat-card-icon { font-size: 20px; margin-bottom: 4px; opacity: 0.85; }
.stat-card-value {
  font-family: var(--font-mono);
  font-size: 24px; font-weight: 700;
  color: var(--ink);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.stat-card-of { font-size: 12px; color: var(--ink-soft); font-weight: 500; }
.stat-card-label {
  font-size: 10.5px;
  color: var(--ink-soft);
  margin-top: 4px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Dashboard row */
.dashboard-row {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 16px;
  margin: 18px 0;
}
@media (max-width: 720px) { .dashboard-row { grid-template-columns: 1fr; } }

.continue-card, .mock-card {
  padding: 20px 22px;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}
.continue-card {
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: 0 4px 12px rgba(15,31,24,0.05);
  position: relative;
}
.continue-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 5px; height: 100%;
  background: linear-gradient(180deg, var(--mint), var(--forest));
}
.continue-card-tag {
  font-size: 11px; font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mint);
  margin-bottom: 10px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.continue-card-tag::before { content: "▶"; font-size: 9px; }
.continue-card-title {
  font-family: var(--font-display);
  font-size: 26px; font-weight: 700;
  color: var(--ink);
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.continue-card-sub { color: var(--ink-muted); margin: 6px 0 20px; font-size: 14px; }

.mock-card {
  background: var(--paper);
  border: 1px solid var(--line);
  color: var(--ink);
}
.mock-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--terra);
  pointer-events: none;
}
.mock-card-tag {
  font-size: 11px; font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--terra);
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}
.mock-card-title {
  font-family: var(--font-display);
  font-size: 26px; font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  position: relative;
  z-index: 1;
  color: var(--ink);
}
.mock-card-sub { color: var(--ink-muted); margin: 6px 0 18px; font-size: 14px; position: relative; z-index: 1; }
.mock-card-meta {
  display: flex; gap: 24px;
  margin-bottom: 20px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  position: relative;
  z-index: 1;
}
.mock-meta-value {
  font-family: var(--font-mono);
  font-size: 24px; font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.mock-meta-label {
  font-size: 11px;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-top: 2px;
  font-weight: 600;
}
.mock-card .btn-ghost {
  color: var(--terra);
  border-color: var(--terra);
  position: relative;
  z-index: 1;
  font-weight: 700;
}
.mock-card .btn-ghost:hover { background: var(--terra); color: var(--cream); }
.mock-card .btn-primary {
  background: var(--terra);
  color: var(--cream);
  position: relative;
  z-index: 1;
  font-weight: 800;
}
.mock-card .btn-primary:hover { background: var(--terra-light); transform: translateY(-1px); }

/* Section headers */
.section-header {
  display: flex; justify-content: space-between; align-items: baseline;
  margin: 20px 0 10px;
}
.section-title {
  font-family: var(--font-display);
  font-size: 22px; font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.recent-badges {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding: 4px 0 8px;
  margin: 0 -6px;
  scrollbar-width: thin;
}
.recent-badges::-webkit-scrollbar { height: 6px; }
.recent-badges::-webkit-scrollbar-thumb { background: var(--line); border-radius: 3px; }

.recent-badge {
  flex: 0 0 auto;
  width: 140px;
  padding: 18px 14px;
  background: var(--paper);
  border-radius: var(--radius-md);
  text-align: center;
  border: 1px solid var(--line);
  margin: 0 6px;
}
.recent-badge-icon { font-size: 36px; margin-bottom: 8px; }
.recent-badge-name { font-weight: 700; font-size: 13px; color: var(--ink); }
.recent-badge-date { font-size: 11px; color: var(--ink-soft); margin-top: 4px; }

.empty-state {
  padding: 24px;
  color: var(--ink-muted);
  background: var(--paper);
  border: 1px dashed var(--line);
  border-radius: var(--radius-md);
  text-align: center;
  font-style: italic;
  width: 100%;
}

/* ===== QUIZ GRID ===== */
.page-header { padding: 18px 0 14px; }
.page-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 44px);
  font-weight: 600;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin-bottom: 6px;
}
.page-title::after { content: '.'; color: var(--amber); }
.page-sub { color: var(--ink-muted); font-size: 16px; }

.quiz-filters {
  display: flex; gap: 8px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.filter-chip {
  padding: 8px 16px;
  background: var(--paper);
  border: 1.5px solid var(--line);
  border-radius: 999px;
  font-size: 13px; font-weight: 600;
  color: var(--ink-muted);
  transition: all 0.2s;
}
.filter-chip:hover { color: var(--ink); border-color: var(--ink-muted); }
.filter-chip.active {
  background: var(--forest);
  color: var(--cream);
  border-color: var(--forest);
}

.quiz-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.quiz-card {
  position: relative;
  padding: 24px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4,0,0.2,1);
  overflow: hidden;
  box-shadow: 0 2px 6px rgba(15,31,24,0.04);
}
.quiz-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--quiz-color, var(--forest)), var(--quiz-color-light, var(--forest-light)));
}
.quiz-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 36px rgba(15,31,24,0.12), 0 4px 8px rgba(15,31,24,0.06);
  border-color: var(--quiz-color, var(--forest));
}
.quiz-card-head {
  display: flex; align-items: flex-start; justify-content: space-between;
  margin-bottom: 14px;
}
.quiz-card-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  background: var(--quiz-color-soft, var(--cream-deep));
  display: flex; align-items: center; justify-content: center;
  font-size: 26px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.quiz-card-status {
  display: inline-flex;
  padding: 4px 11px;
  border-radius: 999px;
  font-size: 10px; font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.quiz-status-new { background: var(--cream-deep); color: var(--ink-muted); }
.quiz-status-progress { background: var(--amber-soft); color: var(--amber-deep); }
.quiz-status-done { background: var(--mint-soft); color: var(--success); }
.quiz-status-mastered {
  background: var(--gold-soft);
  color: var(--gold);
  border: 1px solid rgba(252,211,77,0.20);
}
.quiz-card-subsection {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-soft);
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}
.quiz-card-title {
  font-family: var(--font-display);
  font-size: 18px; font-weight: 600;
  color: var(--ink);
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: 6px;
}
.quiz-card-desc {
  font-size: 13px;
  color: var(--ink-muted);
  line-height: 1.5;
  margin-bottom: 16px;
}
.quiz-card-footer {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.quiz-card-count { font-size: 13px; color: var(--ink-muted); font-weight: 600; }
.quiz-card-score {
  font-family: var(--font-mono);
  font-size: 13px; font-weight: 700;
  color: var(--quiz-color, var(--forest));
}

.mock-banner {
  display: flex; align-items: center; gap: 20px;
  padding: 28px;
  background: var(--paper);
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}
.mock-banner::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--terra);
  pointer-events: none;
}
.mock-banner-icon { font-size: 48px; position: relative; z-index: 1; }
.mock-banner-text { flex: 1; position: relative; z-index: 1; }
.mock-banner-text h3 {
  font-family: var(--font-display);
  font-size: 24px; font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.mock-banner-text p { color: var(--ink-muted); font-size: 14px; margin-top: 4px; }
.mock-banner .btn-primary {
  background: var(--terra);
  color: var(--cream);
  position: relative;
  z-index: 1;
  font-weight: 800;
}
.mock-banner .btn-primary:hover { background: var(--terra-light); transform: translateY(-1px); }
@media (max-width: 600px) { .mock-banner { flex-direction: column; text-align: center; } }

/* ===== QUIZ PLAYING ===== */
.view-quiz { flex-direction: column; background: var(--cream); }
.quiz-shell {
  max-width: 760px;
  width: 100%;
  margin: 0 auto;
  padding: 18px 24px 20px;
  display: flex;
  flex-direction: column;
}
.quiz-topbar {
  display: flex; align-items: center; gap: 18px;
  padding: 4px 0 16px;
}
.quiz-exit {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 600;
  color: var(--ink-muted);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}
.quiz-exit:hover { background: var(--cream-deep); color: var(--ink); }

.quiz-progress-wrap { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.quiz-progress-meta {
  display: flex; align-items: baseline; gap: 4px;
  font-family: var(--font-mono);
  font-weight: 700; font-size: 14px;
}
.quiz-progress-current { color: var(--forest); font-size: 18px; }
.quiz-progress-sep { color: var(--ink-soft); }
.quiz-progress-total { color: var(--ink-muted); }
.quiz-progress-bar {
  height: 8px;
  background: var(--cream-deep);
  border-radius: 999px;
  overflow: hidden;
}
.quiz-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--forest), var(--forest-light));
  border-radius: 999px;
  width: 0%;
  transition: width 0.4s cubic-bezier(0.4,0,0.2,1);
}

.quiz-timer {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 12px;
  background: var(--cream-deep);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-weight: 700; font-size: 14px;
  color: var(--ink);
}
.quiz-timer.warning { background: var(--terra-soft); color: var(--terra); }

.quiz-body {
  padding: 8px 0 12px;
  animation: slide-in 0.4s ease;
}
@keyframes slide-in {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

.q-type-label {
  display: inline-flex;
  padding: 4px 12px;
  background: var(--cream-deep);
  border-radius: 999px;
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 12px;
}
.q-type-mcq { background: var(--mint-soft); color: var(--mint); }
.q-type-tf { background: var(--amber-soft); color: var(--amber); }
.q-type-fib { background: rgba(192,132,252,0.14); color: var(--violet); }
.q-type-match { background: var(--terra-soft); color: var(--terra); }

.q-text {
  font-family: var(--font-display);
  font-size: clamp(19px, 2.6vw, 24px);
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: -0.012em;
  color: var(--ink);
  margin-bottom: 18px;
}

/* MCQ options */
.q-options { display: flex; flex-direction: column; gap: 10px; }
.q-option {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 14px 18px;
  background: var(--paper);
  border: 2px solid var(--line);
  border-radius: var(--radius-md);
  text-align: left;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 15px;
  line-height: 1.45;
  width: 100%;
  box-shadow: 0 1px 3px rgba(15,31,24,0.03);
}
.q-option:hover:not(.disabled) {
  border-color: var(--forest);
  transform: translateX(6px);
  box-shadow: 0 4px 12px rgba(26,77,63,0.10);
}
.q-option.selected {
  border-color: var(--forest);
  background: rgba(163,230,53,0.08);
  box-shadow: 0 4px 14px rgba(0,0,0,0.30);
}
.q-option.correct {
  border-color: var(--success);
  background: rgba(163,230,53,0.10);
  box-shadow: 0 4px 14px rgba(0,0,0,0.25);
  animation: correctPulse 0.5s ease;
}
.q-option.incorrect {
  border-color: var(--danger);
  background: rgba(248,113,113,0.10);
  animation: incorrectShake 0.4s ease;
}
@keyframes correctPulse {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.02); }
  100% { transform: scale(1); }
}
@keyframes incorrectShake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}
.q-option.disabled { cursor: default; }
.q-option-letter {
  flex-shrink: 0;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--cream-deep);
  color: var(--ink);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 14px;
  font-family: var(--font-mono);
  transition: all 0.2s;
}
.q-option.selected .q-option-letter {
  background: var(--forest);
  color: var(--cream);
  box-shadow: 0 2px 8px rgba(163,230,53,0.30);
}
.q-option.correct .q-option-letter {
  background: var(--success);
  color: var(--cream);
  box-shadow: 0 2px 8px rgba(163,230,53,0.30);
}
.q-option.incorrect .q-option-letter {
  background: var(--danger);
  color: var(--cream);
}
.q-option-text { flex: 1; color: var(--ink); }

/* T/F buttons */
.q-tf { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.q-tf-btn {
  padding: 24px;
  background: var(--paper);
  border: 2px solid var(--line);
  border-radius: var(--radius-md);
  font-size: 22px; font-weight: 700;
  font-family: var(--font-display);
  color: var(--ink);
  transition: all 0.2s ease;
  cursor: pointer;
}
.q-tf-btn-true { color: var(--success); }
.q-tf-btn-false { color: var(--danger); }
.q-tf-btn:hover:not(.disabled) { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.q-tf-btn.selected { border-color: var(--forest); background: #F3F8F6; }
.q-tf-btn.correct { border-color: var(--success); background: var(--success-soft); }
.q-tf-btn.incorrect { border-color: var(--danger); background: var(--danger-soft); }
.q-tf-btn.disabled { cursor: default; }

/* FIB inputs */
.q-fib-inputs { display: flex; flex-direction: column; gap: 12px; }
.q-fib-input-row { display: flex; align-items: center; gap: 12px; }
.q-fib-input-num {
  flex-shrink: 0;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--cream-deep);
  color: var(--ink-muted);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 13px;
  font-family: var(--font-mono);
}
.q-fib-input {
  flex: 1;
  padding: 14px 16px;
  background: var(--paper);
  border: 2px solid var(--line);
  border-radius: var(--radius-md);
  font-size: 16px;
  color: var(--ink);
  transition: all 0.2s ease;
}
.q-fib-input:focus { outline: none; border-color: var(--forest); box-shadow: var(--shadow-glow); }
.q-fib-input.correct { border-color: var(--success); background: var(--success-soft); }
.q-fib-input.incorrect { border-color: var(--danger); background: var(--danger-soft); }

/* Match question */
.q-match-list { display: flex; flex-direction: column; gap: 10px; }
.q-match-row {
  display: grid;
  grid-template-columns: 1fr auto 1.2fr;
  gap: 12px;
  align-items: center;
  padding: 12px;
  background: var(--paper);
  border: 2px solid var(--line);
  border-radius: var(--radius-md);
  transition: all 0.2s;
}
.q-match-row.correct { border-color: var(--success); background: var(--success-soft); }
.q-match-row.incorrect { border-color: var(--danger); background: var(--danger-soft); }
.q-match-left {
  font-weight: 600;
  color: var(--ink);
  font-size: 14px;
  line-height: 1.4;
}
.q-match-arrow { color: var(--ink-soft); font-size: 20px; }
.q-match-select {
  padding: 10px 12px;
  background: var(--cream);
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--ink);
  font-family: inherit;
  cursor: pointer;
  width: 100%;
}
.q-match-select:focus { outline: none; border-color: var(--forest); }
.q-match-select.disabled { cursor: default; background: var(--cream-deep); }
@media (max-width: 600px) {
  .q-match-row { grid-template-columns: 1fr; gap: 6px; }
  .q-match-arrow { display: none; }
}

/* Feedback panel */
.quiz-feedback {
  display: none;
  padding: 12px 16px;
  background: var(--paper);
  border: 2px solid var(--line);
  border-radius: var(--radius-md);
  margin-top: 12px;
  animation: feedback-in 0.35s ease;
}
@keyframes feedback-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.quiz-feedback.correct { background: var(--success-soft); border-color: var(--success); }
.quiz-feedback.incorrect { background: var(--danger-soft); border-color: var(--danger); }
.quiz-feedback.show { display: flex; gap: 14px; align-items: flex-start; }

.feedback-icon {
  flex-shrink: 0;
  width: 30px; height: 30px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 17px; font-weight: 700;
  color: var(--cream);
}
.quiz-feedback.correct .feedback-icon { background: var(--success); }
.quiz-feedback.incorrect .feedback-icon { background: var(--danger); }

.feedback-body { flex: 1; }
.feedback-title {
  font-family: var(--font-display);
  font-size: 15px; font-weight: 600;
  color: var(--ink);
  line-height: 1.2;
}
.feedback-exp {
  font-size: 13.5px;
  color: var(--ink);
  margin-top: 3px;
  line-height: 1.45;
}
.feedback-xp {
  display: none;
  align-items: center;
  gap: 4px;
  margin-top: 6px;
  padding: 2px 9px;
  background: var(--amber);
  color: var(--cream);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11.5px; font-weight: 700;
}
.feedback-xp.show { display: inline-flex; }

.quiz-footer {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 12px 0 4px;
  border-top: 1px solid var(--line);
  margin-top: 10px;
}

/* ===== RESULTS ===== */
.results-card {
  background: var(--paper);
  border-radius: var(--radius-xl);
  padding: 48px 32px;
  text-align: center;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
  margin: 32px auto;
  max-width: 600px;
  position: relative;
  overflow: hidden;
}
.results-celebration {
  font-size: 70px;
  margin-bottom: 12px;
  animation: bounce-in 0.6s cubic-bezier(0.68,-0.55,0.27,1.55);
}
@keyframes bounce-in {
  0% { transform: scale(0) rotate(-180deg); opacity: 0; }
  50% { transform: scale(1.2) rotate(20deg); }
  100% { transform: scale(1) rotate(0); opacity: 1; }
}
.results-rank {
  font-family: var(--font-display);
  font-size: 14px; font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--amber);
  margin-bottom: 14px;
}
.results-score {
  font-family: var(--font-mono);
  font-size: 56px; font-weight: 700;
  color: var(--ink);
  line-height: 1;
}
.results-score-of {
  font-size: 28px;
  color: var(--ink-soft);
  font-weight: 500;
}
.results-pct {
  font-family: var(--font-display);
  font-size: 28px; font-weight: 600;
  color: var(--forest);
  margin: 10px 0 28px;
}
.results-meta {
  display: flex; justify-content: center; gap: 32px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-bottom: 26px;
}
.results-meta-item { text-align: center; }
.results-meta-icon { font-size: 22px; margin-bottom: 6px; }
.results-meta-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
}
.results-meta-value {
  font-family: var(--font-mono);
  font-size: 22px; font-weight: 700;
  color: var(--ink);
  margin-top: 4px;
}
@media (max-width: 480px) {
  .results-meta { gap: 14px; flex-wrap: wrap; }
}

.results-new-badges {
  display: flex; justify-content: center; gap: 14px; flex-wrap: wrap;
  margin-bottom: 22px;
}
.new-badge-pop {
  display: flex; flex-direction: column; align-items: center;
  padding: 14px 18px;
  background: var(--gold-soft);
  border-radius: var(--radius-md);
  border: 1px solid var(--gold);
  animation: pop-in 0.5s 0.3s ease both;
}
@keyframes pop-in {
  from { opacity: 0; transform: scale(0.5); }
  to { opacity: 1; transform: scale(1); }
}
.new-badge-pop-icon { font-size: 32px; margin-bottom: 4px; }
.new-badge-pop-name { font-size: 12px; font-weight: 700; color: var(--amber); }

.results-actions {
  display: flex; gap: 10px; justify-content: center; flex-wrap: wrap;
}

/* Review pane */
.review-pane {
  max-width: 760px;
  margin: 24px auto;
  padding: 0 12px;
}
.review-title {
  font-family: var(--font-display);
  font-size: 24px; font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin-bottom: 16px;
}
.review-list { display: flex; flex-direction: column; gap: 12px; }
.review-item {
  padding: 18px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--success);
}
.review-item.wrong { border-left-color: var(--danger); }
.review-item.skipped { border-left-color: var(--ink-soft); }
.review-item-q {
  font-family: var(--font-display);
  font-size: 16px; font-weight: 500;
  color: var(--ink);
  margin-bottom: 8px;
  line-height: 1.4;
}
.review-item-row {
  display: flex; gap: 8px;
  font-size: 13px;
  margin-bottom: 4px;
}
.review-item-row strong { min-width: 80px; color: var(--ink-muted); }
.review-item-correct { color: var(--success); font-weight: 600; }
.review-item-incorrect { color: var(--danger); font-weight: 600; text-decoration: line-through; }
.review-item-exp {
  margin-top: 10px;
  padding: 10px 12px;
  background: var(--cream);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--ink-muted);
  line-height: 1.5;
}

/* ===== ACHIEVEMENTS ===== */
.achievements-summary {
  text-align: center;
  padding: 20px 24px 22px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  margin-bottom: 18px;
  box-shadow: var(--shadow-sm);
}
.achievements-summary-num {
  font-family: var(--font-mono);
  font-size: 38px; font-weight: 700;
  color: var(--forest);
  line-height: 1;
}
.achievements-summary-label {
  font-size: 13px;
  color: var(--ink-muted);
  margin-top: 4px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 600;
}
.achievements-summary-bar {
  margin-top: 14px;
  height: 8px;
  background: var(--cream-deep);
  border-radius: 999px;
  overflow: hidden;
}
.achievements-summary-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--forest), var(--gold));
  border-radius: 999px;
  transition: width 0.6s cubic-bezier(0.4,0,0.2,1);
}

.badges-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}
.badge-card {
  padding: 16px 14px 14px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  text-align: center;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}
.badge-card.unlocked {
  background: var(--gold-soft);
  border-color: var(--gold);
}
.badge-card.unlocked::before {
  content: "";
  position: absolute;
  top: -30px; right: -30px;
  width: 80px; height: 80px;
  background: radial-gradient(circle, rgba(245,158,11,0.30), transparent 70%);
  border-radius: 50%;
}
.badge-card.unlocked:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 16px 32px rgba(245,158,11,0.25), 0 4px 8px rgba(245,158,11,0.15);
}
.badge-card.locked { opacity: 0.50; }
.badge-icon {
  font-size: 38px;
  margin-bottom: 6px;
  display: block;
  filter: grayscale(0);
  position: relative;
  z-index: 1;
}
.badge-card.locked .badge-icon { filter: grayscale(1); }
.badge-name {
  font-family: var(--font-display);
  font-size: 14px; font-weight: 700;
  color: var(--ink);
  margin-bottom: 3px;
  position: relative;
  z-index: 1;
}
.badge-desc {
  font-size: 11.5px;
  color: var(--ink-muted);
  line-height: 1.35;
  position: relative;
  z-index: 1;
}
.badge-status {
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 800;
  margin-top: 8px;
  position: relative;
  z-index: 1;
}
.badge-card.unlocked .badge-status { color: var(--amber-deep); }
.badge-card.locked .badge-status { color: var(--ink-soft); }

/* ===== LEADERBOARD ===== */
.leaderboard-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.leaderboard-header {
  display: grid;
  grid-template-columns: 60px 1fr 100px 100px 80px;
  gap: 16px;
  padding: 14px 20px;
  background: var(--cream-deep);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
}
.leaderboard-list { display: flex; flex-direction: column; }
.lb-row {
  display: grid;
  grid-template-columns: 60px 1fr 100px 100px 80px;
  gap: 16px;
  padding: 16px 20px;
  border-top: 1px solid var(--line);
  align-items: center;
  transition: background 0.15s;
}
.lb-row:hover { background: var(--cream); }
.lb-row.is-current { background: var(--amber-soft); }
.lb-rank {
  font-family: var(--font-display);
  font-size: 22px; font-weight: 700;
  color: var(--ink);
}
.lb-rank.gold { color: var(--gold); }
.lb-rank.silver { color: #B8B5AC; }
.lb-rank.bronze { color: #B8763E; }
.lb-name {
  display: flex; align-items: center; gap: 12px;
  font-weight: 600;
  color: var(--ink);
}
.lb-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--forest);
  color: var(--cream);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 13px;
}
.lb-rank-tag {
  font-size: 11px;
  color: var(--ink-muted);
  font-weight: 500;
  margin-top: 2px;
}
.lb-xp, .lb-acc, .lb-badges {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
  color: var(--ink);
}
.lb-acc { color: var(--forest); }
.lb-badges { color: var(--amber); }

@media (max-width: 600px) {
  .leaderboard-header { grid-template-columns: 40px 1fr 70px 60px; }
  .leaderboard-header .lb-col-acc { display: none; }
  .lb-row { grid-template-columns: 40px 1fr 70px 60px; padding: 14px; gap: 10px; }
  .lb-row .lb-acc { display: none; }
  .lb-rank { font-size: 18px; }
  .lb-avatar { width: 30px; height: 30px; font-size: 12px; }
}

/* ===== PROFILE ===== */
.profile-card {
  display: flex; align-items: center; gap: 20px;
  padding: 24px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  margin-bottom: 22px;
  box-shadow: var(--shadow-sm);
}
.profile-avatar {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--forest), var(--forest-light));
  color: var(--cream);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-size: 32px; font-weight: 700;
}
.profile-info { flex: 1; }
.profile-name {
  font-family: var(--font-display);
  font-size: 26px; font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.015em;
}
.profile-email { color: var(--ink-muted); font-size: 14px; margin-top: 2px; }
.profile-rank {
  display: inline-block;
  margin-top: 8px;
  padding: 4px 12px;
  background: var(--amber-soft);
  color: var(--amber);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.profile-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 28px;
}

.profile-quiz-list {
  display: flex; flex-direction: column; gap: 8px;
  margin-bottom: 36px;
}
.profile-quiz-row {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  gap: 14px;
  align-items: center;
  padding: 14px 18px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}
.profile-quiz-icon {
  width: 38px; height: 38px;
  border-radius: var(--radius-sm);
  background: var(--cream-deep);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
}
.profile-quiz-title { font-weight: 600; font-size: 14px; color: var(--ink); }
.profile-quiz-sub { font-size: 12px; color: var(--ink-muted); margin-top: 2px; font-family: var(--font-mono); }
.profile-quiz-score {
  font-family: var(--font-mono);
  font-weight: 700; font-size: 14px;
  color: var(--forest);
}
.profile-quiz-status-icon {
  font-size: 22px;
}

.profile-danger {
  background: var(--terra-soft);
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(248,113,113,0.30);
}
.profile-danger h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--terra);
  margin-bottom: 4px;
}
.profile-danger p { font-size: 14px; color: var(--terra-light); margin-bottom: 12px; }

/* ===== TOAST ===== */
.toast-container {
  position: fixed;
  top: 80px; right: 20px;
  z-index: 200;
  display: flex; flex-direction: column;
  gap: 10px;
  pointer-events: none;
}
@media (max-width: 720px) {
  .toast-container { top: 70px; left: 20px; right: 20px; }
}
.toast {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 18px;
  background: var(--paper);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--line);
  border-left: 4px solid var(--forest);
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  max-width: 380px;
  pointer-events: all;
  animation: toast-in 0.4s cubic-bezier(0.68,-0.55,0.27,1.55), toast-out 0.4s 4s forwards;
}
.toast.success { border-left-color: var(--success); }
.toast.badge { border-left-color: var(--amber); }
.toast.warning { border-left-color: var(--danger); }
.toast-icon { font-size: 22px; }
@keyframes toast-in {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes toast-out {
  to { opacity: 0; transform: translateX(40px); }
}

/* ===== CONFETTI ===== */
.confetti-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 100;
  display: none;
}
.confetti-canvas.active { display: block; }

/* ===== MODAL ===== */
.modal-backdrop {
  display: none;
  position: fixed; inset: 0;
  background: rgba(28,28,28,0.55);
  z-index: 150;
  align-items: center; justify-content: center;
  padding: 20px;
  backdrop-filter: blur(4px);
}
.modal-backdrop.open { display: flex; animation: fade-in 0.2s ease; }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: var(--paper);
  border-radius: var(--radius-lg);
  padding: 28px;
  max-width: 440px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  animation: modal-in 0.3s cubic-bezier(0.68,-0.55,0.27,1.55);
}
@keyframes modal-in {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}
.modal-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
  letter-spacing: -0.015em;
}
.modal-body {
  color: var(--ink-muted);
  font-size: 15px;
  line-height: 1.5;
  margin-bottom: 20px;
}
.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

/* ===== UTILITIES ===== */
.hidden { display: none !important; }
.fade-in { animation: fade-in 0.4s ease; }

/* Print-friendly hint */
@media print {
  .topbar, .quiz-footer, .quiz-topbar { display: none !important; }
}