/* base.css — Students Hub
 * Shared design tokens + reset + components.
 * Brand: mor #6c5ce7 (primary), cyan #0891b2 (accent).
 * Type: DM Sans (body), Lora (titles).
 *
 * Students Hub is intentionally simpler than CH/AH/TH:
 *   - no dropdown navbars
 *   - no admin tooling chrome
 *   - mobile-first (most students will use phones/tablets)
 */

:root {
  --mor:        #6c5ce7;
  --mor-dk:     #5a4ed1;
  --mor-2:      #efedfb;
  --cyan:       #0891b2;
  --cyan-dk:    #0e7490;
  --cyan-2:     #ecfeff;

  --ink:        #1a1d29;
  --ink-2:      #475066;
  --ink-3:      #7d869c;
  --paper:      #f7f7fb;
  --white:      #ffffff;
  --border:     #e3e5ed;
  --border-2:   #d3d7e1;

  --ok:         #166534;
  --ok-bg:      #dcfce7;
  --warn:       #92400e;
  --warn-bg:    #fef3c7;
  --danger:     #b91c1c;
  --danger-bg:  #fee2e2;

  --gold:       #f59e0b;
  --gold-2:     #fef3c7;
  --silver:     #94a3b8;
  --silver-2:   #f1f5f9;
  --bronze:     #b45309;
  --bronze-2:   #fef3c7;

  --radius:     12px;
  --radius-sm:  8px;
  --radius-lg:  16px;
  --radius-xl:  20px;
  --shadow-sm:  0 1px 3px rgba(16,24,40,.06), 0 1px 2px rgba(16,24,40,.04);
  --shadow:     0 4px 12px rgba(16,24,40,.08);
  --shadow-lg:  0 12px 32px rgba(16,24,40,.12);

  /* Default stage theme = IGCSE (matches brand) — overridden per body[data-stage] below. */
  --stage:        'igcse';
  --stage-name:   'IGCSE';
  --stage-primary:    #6c5ce7;
  --stage-primary-dk: #5a4ed1;
  --stage-primary-2:  #efedfb;
  --stage-accent:     #0891b2;
  --stage-accent-dk:  #0e7490;
  --stage-accent-2:   #ecfeff;
  --stage-gradient:   linear-gradient(135deg, #6c5ce7 0%, #0891b2 100%);
  --stage-glow:       0 18px 40px -16px rgba(108,92,231,.55);
}

/* ─── Stage themes (per-grade-band) ───────────────────────────────
 * Auth-guard sets body[data-stage] from students/{uid}.gradeLevel:
 *   7-8   → checkpoint   (emerald + amber, friendly)
 *   9-10  → igcse        (mor + cyan, focused — matches brand)
 *   11-12 → alevel       (navy + crimson, prestigious)
 */
body[data-stage="checkpoint"] {
  --stage:        'checkpoint';
  --stage-name:   'Checkpoint';
  --stage-primary:    #10b981;
  --stage-primary-dk: #047857;
  --stage-primary-2:  #d1fae5;
  --stage-accent:     #fbbf24;
  --stage-accent-dk:  #d97706;
  --stage-accent-2:   #fef3c7;
  --stage-gradient:   linear-gradient(135deg, #10b981 0%, #fbbf24 100%);
  --stage-glow:       0 18px 40px -16px rgba(16,185,129,.55);
}
body[data-stage="igcse"] {
  --stage:        'igcse';
  --stage-name:   'IGCSE';
  --stage-primary:    #6c5ce7;
  --stage-primary-dk: #5a4ed1;
  --stage-primary-2:  #efedfb;
  --stage-accent:     #0891b2;
  --stage-accent-dk:  #0e7490;
  --stage-accent-2:   #ecfeff;
  --stage-gradient:   linear-gradient(135deg, #6c5ce7 0%, #0891b2 100%);
  --stage-glow:       0 18px 40px -16px rgba(108,92,231,.55);
}
body[data-stage="alevel"] {
  --stage:        'alevel';
  --stage-name:   'A-Level';
  --stage-primary:    #1e293b;
  --stage-primary-dk: #0f172a;
  --stage-primary-2:  #e2e8f0;
  --stage-accent:     #dc2626;
  --stage-accent-dk:  #991b1b;
  --stage-accent-2:   #fee2e2;
  --stage-gradient:   linear-gradient(135deg, #1e293b 0%, #dc2626 100%);
  --stage-glow:       0 18px 40px -16px rgba(30,41,59,.55);
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  font-family: 'DM Sans', system-ui, -apple-system, sans-serif;
  background: var(--paper);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  font-size: 15px;
  line-height: 1.5;
}

h1, h2, h3 { font-family: 'Lora', Georgia, serif; font-weight: 600; line-height: 1.2; margin: 0; }
h1 { font-size: 1.75rem; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.1rem;  }

a { color: var(--mor); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ─── Layout ──────────────────────────────────────────────────── */
.page {
  max-width: 920px;
  margin: 0 auto;
  padding: 28px 20px 80px;
}
.page-narrow {
  max-width: 560px;
  margin: 0 auto;
  padding: 28px 20px 80px;
}

/* ─── Top bar (minimal, not a dropdown nav) ───────────────────── */
.topbar {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 14px 20px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  position: sticky; top: 0; z-index: 50;
}
.topbar-brand {
  display: flex; align-items: center; gap: 10px;
  font-family: 'Lora', serif; font-size: 1.05rem; font-weight: 600;
  color: var(--ink);
}
.topbar-brand .brand-mark {
  width: 30px; height: 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--mor) 0%, var(--cyan) 100%);
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-size: 0.85rem; font-weight: 700;
}
.topbar-nav {
  display: flex; align-items: center; gap: 4px;
}
.topbar-nav a {
  padding: 7px 12px; border-radius: 8px;
  font-size: 0.88rem; font-weight: 500;
  color: var(--ink-2);
}
.topbar-nav a:hover     { background: var(--mor-2); color: var(--mor); text-decoration: none; }
.topbar-nav a.active    { background: var(--mor); color: #fff; }
.topbar-user {
  display: flex; align-items: center; gap: 10px;
}
.topbar-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--mor-2); color: var(--mor);
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: 0.85rem;
  overflow: hidden;
}
.topbar-avatar img { width: 100%; height: 100%; object-fit: cover; }

/* ─── Cards ──────────────────────────────────────────────────── */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}
.card-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-bottom: 14px;
}
.card-title { font-size: 1.05rem; font-weight: 600; color: var(--ink); }
.card-sub   { font-size: 0.84rem; color: var(--ink-3); }

/* ─── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px; border-radius: 10px;
  font-family: inherit; font-size: 0.92rem; font-weight: 600;
  border: 1px solid transparent; cursor: pointer;
  transition: filter .15s, transform .05s;
  text-decoration: none;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--mor);  color: #fff; }
.btn-primary:hover  { filter: brightness(.93); text-decoration: none; }
.btn-secondary { background: var(--white); color: var(--ink); border-color: var(--border-2); }
.btn-secondary:hover { background: var(--paper); text-decoration: none; }
.btn-ghost { background: transparent; color: var(--ink-2); }
.btn-ghost:hover { background: var(--mor-2); color: var(--mor); text-decoration: none; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-block  { display: flex; width: 100%; justify-content: center; }
.btn-lg { padding: 14px 22px; font-size: 1rem; border-radius: 12px; }

/* ─── Form fields ────────────────────────────────────────────── */
.field { margin-bottom: 16px; }
.field-label {
  display: block; font-size: 0.84rem; font-weight: 500;
  color: var(--ink-2); margin-bottom: 6px;
}
.input, .select, .textarea {
  width: 100%;
  padding: 10px 12px;
  font-family: inherit; font-size: 0.95rem;
  border: 1px solid var(--border-2); border-radius: 10px;
  background: var(--white); color: var(--ink);
  outline: none;
}
.input:focus, .select:focus, .textarea:focus {
  border-color: var(--mor);
  box-shadow: 0 0 0 3px rgba(108,92,231,.18);
}

/* ─── Badges + chips ─────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 9px; border-radius: 999px;
  font-size: 0.74rem; font-weight: 600; line-height: 1.4;
  background: var(--paper); color: var(--ink-2); border: 1px solid var(--border);
}
.badge-mor    { background: var(--mor-2);   color: var(--mor);   border-color: #d6d1f5; }
.badge-cyan   { background: var(--cyan-2);  color: var(--cyan);  border-color: #b8e8f0; }
.badge-ok     { background: var(--ok-bg);   color: var(--ok);    border-color: #a7f3c4; }
.badge-warn   { background: var(--warn-bg); color: var(--warn);  border-color: #fcd34d; }
.badge-danger { background: var(--danger-bg); color: var(--danger); border-color: #fca5a5; }

/* ─── Modal ──────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(16,24,40,.55);
  display: none;
  align-items: center; justify-content: center;
  z-index: 100; padding: 16px;
}
.modal-overlay.is-open { display: flex; }
.modal {
  background: var(--white); border-radius: var(--radius-lg);
  width: min(520px, 100%); max-height: 90vh; overflow: auto;
  box-shadow: var(--shadow-lg);
  padding: 24px;
}

/* ─── Empty + status states ──────────────────────────────────── */
.empty {
  text-align: center;
  padding: 48px 20px; color: var(--ink-3);
}
.empty-title { font-size: 1.05rem; font-weight: 600; color: var(--ink-2); margin-bottom: 6px; }

/* ─── Test-taking surface (test.html only) ───────────────────── */
/* Stripped-down body — no topbar, no distractions.
 * Wrap all test content in <body class="test-mode">.
 */
body.test-mode { background: #fafbff; }
body.test-mode .topbar { display: none; }

.test-shell {
  max-width: 760px;
  margin: 0 auto;
  padding: 16px 20px 80px;
}
.test-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0; border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}
.test-progress {
  height: 4px; background: var(--border); border-radius: 2px;
  margin: 12px 0 24px; overflow: hidden;
}
.test-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--mor) 0%, var(--cyan) 100%);
  transition: width .25s;
}
.qstem {
  font-size: 1.08rem; line-height: 1.55;
  color: var(--ink); margin-bottom: 20px;
}
.qopt {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 14px 16px; border: 1.5px solid var(--border);
  border-radius: 12px; margin-bottom: 10px;
  cursor: pointer; background: var(--white);
  transition: all .15s;
}
.qopt:hover     { border-color: var(--mor); background: var(--mor-2); }
.qopt.selected  { border-color: var(--mor); background: var(--mor-2); }
.qopt-letter {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--paper); color: var(--ink-2);
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.84rem; flex-shrink: 0;
}
.qopt.selected .qopt-letter {
  background: var(--mor); color: #fff;
}
.qopt-text { flex: 1; font-size: 0.96rem; line-height: 1.5; }

.test-nav {
  display: flex; gap: 12px; margin-top: 24px;
}

/* ─── Stage-themed components ────────────────────────────────────
 * These hook into --stage-* vars so they auto-recolour per grade band.
 */

/* Stage hero — big gradient panel used on dashboard / report */
.stage-hero {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 28px 28px 24px;
  color: #fff;
  background: var(--stage-gradient);
  box-shadow: var(--stage-glow);
  overflow: hidden;
}
.stage-hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 100% 0%, rgba(255,255,255,.18) 0%, transparent 50%),
    radial-gradient(circle at 0% 100%, rgba(255,255,255,.12) 0%, transparent 50%);
  pointer-events: none;
}
.stage-hero > * { position: relative; z-index: 1; }
.stage-hero h1 { color: #fff; font-family: 'Lora', serif; letter-spacing: -.3px; }
.stage-hero p  { color: rgba(255,255,255,.92); margin: 6px 0 0; line-height: 1.55; }

/* Stage chip — small label showing current band */
.stage-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 999px;
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.3);
  color: #fff;
  font-size: .72rem; font-weight: 600; letter-spacing: .5px; text-transform: uppercase;
  backdrop-filter: blur(8px);
}
.stage-chip-light {
  background: var(--stage-primary-2);
  border: 1px solid var(--stage-primary);
  color: var(--stage-primary-dk);
}
.stage-chip .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: #fff; opacity: .9;
}
.stage-chip-light .dot { background: var(--stage-primary); opacity: 1; }

/* Stage-themed button override */
.btn-stage {
  background: var(--stage-gradient);
  color: #fff;
  box-shadow: var(--stage-glow);
  border: none;
  transition: transform .15s ease, box-shadow .2s ease, filter .15s ease;
}
.btn-stage:hover {
  filter: brightness(1.05); text-decoration: none;
  transform: translateY(-1px);
}

/* Stage-themed card border accent */
.card-stage {
  border: 1px solid var(--stage-primary-2);
  position: relative;
  overflow: hidden;
}
.card-stage::before {
  content: ''; position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  background: var(--stage-gradient);
}

/* Override .topbar-brand .brand-mark to use stage gradient */
.topbar-brand .brand-mark { background: var(--stage-gradient); }
.topbar-nav a.active { background: var(--stage-primary); }
.topbar-nav a:hover  { background: var(--stage-primary-2); color: var(--stage-primary-dk); }
.topbar-avatar { background: var(--stage-primary-2); color: var(--stage-primary-dk); }

.test-progress-bar { background: var(--stage-gradient); }
.qopt:hover, .qopt.selected { border-color: var(--stage-primary); background: var(--stage-primary-2); }
.qopt.selected .qopt-letter { background: var(--stage-primary); }
.input:focus, .select:focus, .textarea:focus {
  border-color: var(--stage-primary);
  box-shadow: 0 0 0 3px var(--stage-primary-2);
}

/* ─── Gamification — Points / Level / Streak / Badges ────────── */

.points-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 999px;
  background: linear-gradient(135deg, var(--gold-2) 0%, #fef9c3 100%);
  border: 1px solid var(--gold);
  color: var(--bronze);
  font-weight: 700; font-size: .85rem;
  box-shadow: 0 4px 10px -4px rgba(245,158,11,.45);
}
.points-chip .icon {
  width: 16px; height: 16px;
  display: inline-flex; align-items: center; justify-content: center;
}

.streak-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 999px;
  background: linear-gradient(135deg, #fed7aa 0%, #fdba74 100%);
  border: 1px solid #fb923c;
  color: #9a3412;
  font-weight: 700; font-size: .85rem;
}

/* Level badge — circular with progress ring */
.level-badge {
  position: relative;
  width: 56px; height: 56px;
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.level-badge svg.ring {
  position: absolute; inset: 0;
  transform: rotate(-90deg);
  width: 100%; height: 100%;
}
.level-badge .ring-track { stroke: var(--stage-primary-2); fill: none; stroke-width: 5; }
.level-badge .ring-fill  { stroke: var(--stage-primary); fill: none; stroke-width: 5; stroke-linecap: round;
  transition: stroke-dashoffset .6s cubic-bezier(.2,.8,.2,1); }
.level-badge .level-num {
  position: relative;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--stage-gradient);
  color: #fff; font-weight: 800; font-size: 1rem;
  display: inline-flex; align-items: center; justify-content: center;
  box-shadow: var(--stage-glow);
}
.level-badge-lg { width: 80px; height: 80px; }
.level-badge-lg .level-num { width: 60px; height: 60px; font-size: 1.35rem; }

/* Stat tile — gamification dashboard cell */
.stat-tile {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  display: flex; align-items: center; gap: 14px;
  transition: transform .15s ease, box-shadow .2s ease, border-color .15s ease;
}
.stat-tile:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: var(--stage-primary-2);
}
.stat-tile-icon {
  width: 44px; height: 44px; border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.stat-tile-icon.icon-mor    { background: var(--stage-primary-2); color: var(--stage-primary-dk); }
.stat-tile-icon.icon-gold   { background: var(--gold-2); color: var(--bronze); }
.stat-tile-icon.icon-flame  { background: #ffedd5; color: #c2410c; }
.stat-tile-icon.icon-cyan   { background: var(--cyan-2); color: var(--cyan-dk); }
.stat-tile-icon svg { width: 22px; height: 22px; }
.stat-tile-meta { flex: 1; min-width: 0; }
.stat-tile-val  { font-size: 1.35rem; font-weight: 800; color: var(--ink); line-height: 1.1; font-family: 'Lora', serif; }
.stat-tile-lbl  { font-size: .78rem; color: var(--ink-3); margin-top: 2px; font-weight: 500; }

/* Medal (podium ranks) */
.medal {
  width: 28px; height: 28px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: .82rem;
  border: 2px solid #fff;
  box-shadow: 0 2px 6px rgba(0,0,0,.15);
  flex-shrink: 0;
}
.medal-gold   { background: linear-gradient(135deg, #fde047 0%, #f59e0b 100%); color: #78350f; }
.medal-silver { background: linear-gradient(135deg, #e2e8f0 0%, #94a3b8 100%); color: #1e293b; }
.medal-bronze { background: linear-gradient(135deg, #fdba74 0%, #b45309 100%); color: #fff; }
.medal-num    { background: var(--paper); color: var(--ink-2); border-color: var(--border); box-shadow: none; font-size: .75rem; }

/* Achievement badge tile */
.badge-tile {
  position: relative;
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 12px;
  text-align: center;
  transition: transform .15s ease;
}
.badge-tile.earned {
  border-color: var(--gold);
  background: linear-gradient(180deg, var(--gold-2) 0%, #fff 100%);
}
.badge-tile.locked { opacity: .55; filter: grayscale(.6); }
.badge-tile:hover { transform: translateY(-2px); }
.badge-tile .glyph {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--stage-gradient);
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1.4rem; margin-bottom: 8px;
}
.badge-tile.earned .glyph {
  background: linear-gradient(135deg, var(--gold) 0%, #ea580c 100%);
}
.badge-tile .name { font-size: .82rem; font-weight: 600; color: var(--ink); line-height: 1.25; }
.badge-tile .when { font-size: .7rem; color: var(--ink-3); margin-top: 2px; }

/* Points-earned pop animation (after submitting attempt) */
@keyframes pointsPop {
  0%   { transform: translateY(0) scale(.6); opacity: 0; }
  20%  { transform: translateY(-6px) scale(1.2); opacity: 1; }
  60%  { transform: translateY(-30px) scale(1); opacity: 1; }
  100% { transform: translateY(-60px) scale(.95); opacity: 0; }
}
.points-pop {
  position: absolute;
  font-weight: 800; font-size: 1.2rem;
  color: var(--gold); text-shadow: 0 2px 6px rgba(245,158,11,.4);
  pointer-events: none;
  animation: pointsPop 1.6s ease-out forwards;
}

/* ─── Skeleton loaders ───────────────────────────────────────────
 * Use <div class="skel skel-line"></div>, <div class="skel skel-card"></div> etc.
 * Replace "Loading..." text with concrete skeleton shapes.
 */
@keyframes skelShimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.skel {
  background:
    linear-gradient(90deg,
      rgba(227,229,237,.6) 0%,
      rgba(243,244,250,.95) 50%,
      rgba(227,229,237,.6) 100%);
  background-size: 200% 100%;
  animation: skelShimmer 1.8s linear infinite;
  border-radius: 8px;
  display: block;
}
.skel-line     { height: 14px; margin: 6px 0; }
.skel-line-sm  { height: 10px; margin: 4px 0; width: 60%; }
.skel-title    { height: 22px; width: 50%; margin-bottom: 12px; }
.skel-card     { height: 120px; border-radius: var(--radius); }
.skel-tile     { height: 78px; border-radius: var(--radius); }
.skel-chip     { display: inline-block; height: 24px; width: 80px; border-radius: 999px; vertical-align: middle; }
.skel-avatar   { width: 44px; height: 44px; border-radius: 50%; }

/* ─── Leaderboard primitives ─────────────────────────────────── */
.lb-tabs {
  display: flex; gap: 4px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 4px;
  margin-bottom: 20px;
  width: 100%; overflow-x: auto;
}
.lb-tab {
  flex: 1; min-width: max-content;
  padding: 10px 16px; border-radius: 10px;
  font-size: .88rem; font-weight: 600;
  color: var(--ink-2); cursor: pointer;
  background: transparent; border: none;
  transition: all .15s;
  white-space: nowrap;
}
.lb-tab:hover  { background: var(--stage-primary-2); color: var(--stage-primary-dk); }
.lb-tab.active {
  background: var(--stage-gradient); color: #fff;
  box-shadow: var(--stage-glow);
}

/* Podium for top 3 */
.podium {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  align-items: end;
  margin-bottom: 20px;
}
.podium-step {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 12px 18px;
  text-align: center;
  position: relative;
  transition: transform .15s ease;
}
.podium-step:hover { transform: translateY(-2px); }
.podium-step.rank-1 {
  order: 2;
  background: linear-gradient(180deg, var(--gold-2) 0%, #fff 100%);
  border: 2px solid var(--gold);
  padding-top: 22px; padding-bottom: 26px;
  box-shadow: 0 12px 28px -8px rgba(245,158,11,.5);
}
.podium-step.rank-2 {
  order: 1;
  background: linear-gradient(180deg, var(--silver-2) 0%, #fff 100%);
  border: 1.5px solid var(--silver);
}
.podium-step.rank-3 {
  order: 3;
  background: linear-gradient(180deg, var(--bronze-2) 0%, #fff 100%);
  border: 1.5px solid var(--bronze);
}
.podium-avatar {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--stage-primary-2); color: var(--stage-primary-dk);
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1.2rem;
  margin: 0 auto 8px;
  border: 3px solid #fff; box-shadow: var(--shadow);
  overflow: hidden;
}
.podium-step.rank-1 .podium-avatar { width: 72px; height: 72px; font-size: 1.5rem; }
.podium-avatar img { width: 100%; height: 100%; object-fit: cover; }
.podium-name { font-weight: 700; font-size: .9rem; color: var(--ink); line-height: 1.25; }
.podium-meta { font-size: .76rem; color: var(--ink-3); margin-top: 2px; }
.podium-pts  { font-family: 'Lora', serif; font-weight: 700; font-size: 1.15rem; margin-top: 6px; color: var(--stage-primary-dk); }
.podium-step.rank-1 .podium-pts { color: var(--bronze); font-size: 1.35rem; }

/* Leaderboard row (rank 4+) */
.lb-row {
  display: grid;
  grid-template-columns: 36px 44px 1fr auto auto;
  gap: 12px; align-items: center;
  padding: 12px 14px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--border);
  margin-bottom: 8px;
  transition: all .15s;
}
.lb-row:hover { border-color: var(--stage-primary-2); box-shadow: var(--shadow-sm); }
.lb-row.is-me {
  border: 2px solid var(--stage-primary);
  background: var(--stage-primary-2);
}
.lb-row .rank {
  text-align: center; font-weight: 700; color: var(--ink-3); font-size: .9rem;
}
.lb-row .avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--stage-primary-2); color: var(--stage-primary-dk);
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: .9rem;
  overflow: hidden;
}
.lb-row .avatar img { width: 100%; height: 100%; object-fit: cover; }
.lb-row .name   { font-weight: 600; color: var(--ink); font-size: .94rem; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lb-row .meta   { font-size: .76rem; color: var(--ink-3); }
.lb-row .pts    { font-family: 'Lora', serif; font-weight: 700; color: var(--ink); font-size: 1rem; }
.lb-row .delta  { font-size: .76rem; font-weight: 600; }
.lb-row .delta.up    { color: var(--ok); }
.lb-row .delta.down  { color: var(--danger); }

/* ─── Mobile tweaks ──────────────────────────────────────────── */
@media (max-width: 600px) {
  .topbar { padding: 12px 16px; }
  .topbar-nav a { padding: 6px 10px; font-size: 0.84rem; }
  .topbar-brand { font-size: 0.95rem; }
  .page, .page-narrow { padding: 20px 16px 60px; }
  h1 { font-size: 1.5rem; }
  .card { padding: 16px; }
  .stage-hero { padding: 20px 18px; }
  .podium { gap: 8px; }
  .podium-step { padding: 12px 8px 14px; }
  .podium-step.rank-1 .podium-avatar { width: 56px; height: 56px; }
  .podium-avatar { width: 44px; height: 44px; font-size: 1rem; }
  .lb-row { grid-template-columns: 28px 36px 1fr auto; gap: 8px; padding: 10px; }
  .lb-row .delta { display: none; }
}

/* Reduced-motion safety */
@media (prefers-reduced-motion: reduce) {
  .skel { animation: none; background: rgba(227,229,237,.6); }
  .points-pop { animation: none; }
}