/* ============================================================
   Zayacchess redesign — tokens + shell + login + atoms.
   Loaded AFTER styles.css and overrides shell/login only.
   ============================================================ */

:root {
  /* Surfaces — graphite + paper */
  --zc-ink:        #0b1220;
  --zc-ink2:       #1e2a3c;
  --zc-graphite:   #2b3a52;
  --zc-slate:      #64748b;
  --zc-mist:       #94a3b8;
  --zc-line:       #e6eaf0;
  --zc-paper:      #ffffff;
  --zc-cream:      #faf8f5;
  --zc-canvas:     #f3f5f9;

  /* Brand — violet-indigo */
  --zc-brand:      #5b6cff;
  --zc-brand-deep: #3b4bd9;
  --zc-brand-soft: #eef0ff;
  --zc-brand-tint: #dfe3ff;

  /* Secondary — coral */
  --zc-coral:      #ff7a8a;
  --zc-coral-soft: #ffe4e7;

  /* States */
  --zc-mint:       #22c08a;
  --zc-mint-soft:  #dff7ec;
  --zc-amber:      #f59e0b;
  --zc-amber-soft: #fff1d6;
  --zc-rose:       #e11d48;
  --zc-rose-soft:  #ffe4e9;

  /* Fonts */
  --zc-ff-display: 'Fraunces', 'Playfair Display', Georgia, serif;
  --zc-ff-ui:      'Geist', 'Inter', 'Manrope', -apple-system, 'Segoe UI', Roboto, sans-serif;
  --zc-ff-mono:    'Geist Mono', ui-monospace, 'SF Mono', Consolas, monospace;

  /* Radii */
  --zc-r-xs: 6px; --zc-r-sm: 10px; --zc-r-md: 14px;
  --zc-r-lg: 20px; --zc-r-xl: 28px; --zc-r-pill: 999px;

  /* Shadows */
  --zc-sh-xs: 0 1px 2px rgba(11,18,32,.06);
  --zc-sh-sm: 0 2px 8px rgba(11,18,32,.06), 0 1px 2px rgba(11,18,32,.04);
  --zc-sh-md: 0 8px 24px rgba(11,18,32,.08), 0 2px 6px rgba(11,18,32,.05);
  --zc-sh-lg: 0 20px 48px rgba(11,18,32,.12), 0 4px 10px rgba(11,18,32,.06);
  --zc-sh-glow: 0 0 0 6px rgba(91,108,255,.12);
}

/* ============================================================
   Base — body, canvas, typography defaults
   ============================================================ */
html, body {
  background: var(--zc-canvas) !important;
  color: var(--zc-ink);
  font-family: var(--zc-ff-ui);
  font-weight: 600;
  -webkit-font-smoothing: antialiased;
}
body { margin: 0; padding: 0; }

::selection { background: rgba(91,108,255,0.25); }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #d7d5cd; border-radius: 10px; border: 2px solid var(--zc-canvas); }
::-webkit-scrollbar-thumb:hover { background: #bab7ab; }

/* ============================================================
   SHELL — header & nav (override of base.html <header>)
   ============================================================ */
body > header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--zc-line);
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 14px 28px;
  max-width: 1280px;
  margin: 0 auto;
  box-shadow: none !important;
}

body > header .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
}
body > header .brand-logo {
  width: 36px;
  height: 36px;
  border-radius: 11px;
  background: var(--zc-ink);
  padding: 5px;
  box-sizing: border-box;
  object-fit: contain;
}
body > header .brand b {
  font-family: var(--zc-ff-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.02em;
  color: var(--zc-ink);
}

body > header .nav-menu {
  display: flex;
  gap: 2px;
  margin-left: 16px;
}
body > header .nav-menu a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 14px;
  border-radius: 10px;
  border: none;
  background: transparent;
  color: var(--zc-graphite);
  font-family: var(--zc-ff-ui);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  transition: background .15s;
}
body > header .nav-menu a:hover { background: var(--zc-canvas); }
body > header .nav-menu a.active {
  background: var(--zc-ink);
  color: #fff;
}

body > header .user-info {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
}
body > header .user-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px 4px 4px;
  background: #fff;
  border: 1px solid var(--zc-line);
  border-radius: 999px;
  cursor: pointer;
  color: inherit;
  text-decoration: none;
}
body > header .user-chip:hover { border-color: var(--zc-brand); }
body > header .user-chip b {
  font-weight: 600;
  font-size: 13.5px;
  color: var(--zc-ink);
}
body > header .avatar-mini-wrap {
  position: relative;
  width: 28px;
  height: 28px;
}
body > header .avatar-mini,
body > header .avatar-mini-placeholder {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--zc-brand);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 12px;
  overflow: hidden;
  object-fit: cover;
}
body > header .avatar-mini-placeholder { position: absolute; inset: 0; display: none; }
body > header .avatar-mini[src=""] + .avatar-mini-placeholder,
body > header .avatar-mini:not([src]) + .avatar-mini-placeholder { display: flex; }

body > header .role-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  background: var(--zc-canvas);
  border: 1px solid var(--zc-line);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  color: var(--zc-graphite);
  letter-spacing: 0.02em;
}

body > header .rating-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 11px;
  background: var(--zc-brand-soft);
  color: var(--zc-brand-deep);
  border-radius: 999px;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: -0.005em;
}

body > header .pair {
  font-size: 12px;
  color: var(--zc-slate);
  font-weight: 500;
}

body > header .pair-jump {
  font-size: 12px;
  color: var(--zc-coral) !important;
  font-weight: 700;
  text-decoration: none;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--zc-coral-soft);
}

body > header .logout {
  font-size: 12px;
  color: var(--zc-slate);
  text-decoration: none;
  padding: 4px 8px;
  border-radius: 6px;
}
body > header .logout:hover { color: var(--zc-ink); background: var(--zc-canvas); }

/* Main wrapper */
body > main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 32px 28px 80px;
}

/* ============================================================
   ATOMS — Button / Chip / Card
   ============================================================ */
.zc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 12px;
  border: 1.5px solid transparent;
  font-family: var(--zc-ff-ui);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: transform .08s, box-shadow .15s, background .15s;
  background: var(--zc-ink);
  color: #fff;
  border-color: var(--zc-ink);
  text-decoration: none;
}
.zc-btn:hover:not(:disabled) { transform: translateY(-1px); box-shadow: 0 4px 14px rgba(11,18,32,0.12); }
.zc-btn:active:not(:disabled) { transform: translateY(0); }
.zc-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.zc-btn--sm { padding: 8px 14px; font-size: 13px; border-radius: 10px; }
.zc-btn--lg { padding: 14px 26px; font-size: 16px; border-radius: 14px; }
.zc-btn--accent { background: var(--zc-brand); color: #fff; border-color: var(--zc-brand); }
.zc-btn--coral  { background: var(--zc-coral); color: #fff; border-color: var(--zc-coral); }
.zc-btn--ghost  { background: transparent; color: var(--zc-ink); border-color: var(--zc-line); }
.zc-btn--soft   { background: var(--zc-brand-soft); color: var(--zc-brand-deep); border-color: transparent; }
.zc-btn--danger { background: var(--zc-rose); color: #fff; border-color: var(--zc-rose); }
.zc-btn--w-full { width: 100%; }

.zc-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 11px;
  background: var(--zc-canvas);
  color: var(--zc-graphite);
  border: 1px solid var(--zc-line);
  border-radius: 999px;
  font-family: var(--zc-ff-ui);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: -0.005em;
  white-space: nowrap;
}
.zc-chip--sm    { padding: 3px 8px; font-size: 11px; }
.zc-chip--brand { background: var(--zc-brand-soft); color: var(--zc-brand-deep); border-color: transparent; }
.zc-chip--mint  { background: var(--zc-mint-soft); color: #0d7a53; border-color: transparent; }
.zc-chip--coral { background: var(--zc-coral-soft); color: #b93244; border-color: transparent; }
.zc-chip--amber { background: var(--zc-amber-soft); color: #a16207; border-color: transparent; }
.zc-chip--dark  { background: var(--zc-ink); color: #fff; border-color: var(--zc-ink); }

.zc-card {
  background: #fff;
  border-radius: 16px;
  border: 1px solid var(--zc-line);
  padding: 20px;
  box-shadow: var(--zc-sh-xs);
  transition: box-shadow .15s, border-color .15s, transform .15s;
}
.zc-card--pad-sm { padding: 14px; }
.zc-card--pad-lg { padding: 28px; }
.zc-card--interactive { cursor: pointer; }
.zc-card--interactive:hover {
  box-shadow: var(--zc-sh-md);
  border-color: var(--zc-brand);
  transform: translateY(-1px);
}
.zc-card--dark {
  background: var(--zc-ink);
  color: #fff;
  border-color: var(--zc-ink);
}

/* Titles */
.zc-h1 { font-family: var(--zc-ff-display); font-weight: 600; font-size: 40px; letter-spacing: -0.03em; margin: 0; line-height: 1.05; }
.zc-h2 { font-family: var(--zc-ff-display); font-weight: 600; font-size: 28px; letter-spacing: -0.02em; margin: 0; }
.zc-h3 { font-family: var(--zc-ff-display); font-weight: 600; font-size: 19px; letter-spacing: -0.02em; margin: 0; }
.zc-muted { color: var(--zc-slate); font-size: 14px; }
.zc-em-coral { color: var(--zc-coral); font-style: italic; }

/* ============================================================
   LOGIN — two-column brand + form
   ============================================================ */
.zc-login-wrap {
  min-height: calc(100vh - 100px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.zc-login-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1fr);
  gap: 28px;
  max-width: 860px;
  width: 100%;
  align-items: center;
}
@media (max-width: 760px) {
  .zc-login-grid { grid-template-columns: 1fr; }
}

.zc-login-brand {
  background: linear-gradient(135deg, var(--zc-ink) 0%, var(--zc-graphite) 100%);
  border-radius: 24px;
  padding: 32px;
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
  min-height: 440px;
  min-width: 0;
}
.zc-login-brand::after {
  content: '';
  position: absolute;
  bottom: -40px; right: -40px;
  width: 220px; height: 220px;
  border-radius: 50%;
  background: var(--zc-coral);
  opacity: 0.25;
}
.zc-login-brand__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 30px;
  position: relative;
  z-index: 1;
}
.zc-login-brand__logo .logo-box {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: #fff;
  padding: 6px;
  box-sizing: border-box;
  display: flex; align-items: center; justify-content: center;
}
.zc-login-brand__logo .logo-box img { width: 100%; height: 100%; object-fit: contain; }
.zc-login-brand__logo .logo-title {
  font-family: var(--zc-ff-display);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.zc-login-brand h1 {
  position: relative; z-index: 1;
  font-family: var(--zc-ff-display);
  font-size: 36px;
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0;
  word-break: break-word;
}
.zc-login-brand p {
  position: relative; z-index: 1;
  font-size: 15px;
  color: rgba(255,255,255,0.7);
  margin-top: 12px;
  line-height: 1.5;
  max-width: 320px;
}
.zc-login-brand__stats {
  position: relative; z-index: 1;
  display: flex;
  gap: 20px;
  font-size: 12.5px;
  color: rgba(255,255,255,0.6);
  margin-top: 24px;
}
.zc-login-brand__stats b {
  color: #fff;
  font-size: 20px;
  display: block;
}

.zc-login-form { min-width: 0; }
.zc-login-tabs {
  display: flex;
  gap: 4px;
  background: var(--zc-canvas);
  padding: 4px;
  border-radius: 12px;
  margin-bottom: 22px;
  width: fit-content;
}
.zc-login-tabs .tab-btn {
  padding: 8px 18px;
  border-radius: 8px;
  border: none;
  background: transparent;
  box-shadow: none;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  font-family: var(--zc-ff-ui);
  color: var(--zc-slate);
}
.zc-login-tabs .tab-btn.selected {
  background: #fff;
  color: var(--zc-ink);
  box-shadow: var(--zc-sh-xs);
}
.zc-login-form h2 {
  font-family: var(--zc-ff-display);
  font-size: 32px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}
.zc-login-form .sub {
  color: var(--zc-slate);
  font-size: 14px;
  margin: 0 0 24px;
}

.zc-field { margin-bottom: 14px; }
.zc-field > label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--zc-slate);
  margin-bottom: 6px;
}
.zc-field > input,
.zc-field > select {
  width: 100%;
  padding: 11px 14px;
  border-radius: 10px;
  border: 1.5px solid var(--zc-line);
  background: #fff;
  font-family: var(--zc-ff-ui);
  font-size: 14px;
  color: var(--zc-ink);
  outline: none;
  transition: border-color .15s;
  box-sizing: border-box;
}
.zc-field > input:focus,
.zc-field > select:focus { border-color: var(--zc-brand); }

.zc-role-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.zc-role-grid .role-btn {
  padding: 14px 16px;
  border-radius: 12px;
  border: 2px solid var(--zc-line);
  background: #fff;
  color: var(--zc-ink);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--zc-ff-ui);
}
.zc-role-grid .role-btn:hover { border-color: var(--zc-mist); }
.zc-role-grid .role-btn.selected {
  border-color: var(--zc-ink);
  background: var(--zc-ink);
  color: #fff;
}
.zc-role-grid .role-btn .role-emoji { font-size: 18px; }

.zc-login-swap {
  text-align: center;
  margin-top: 14px;
  font-size: 13px;
  color: var(--zc-slate);
}
.zc-login-swap a {
  color: var(--zc-brand);
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}
.zc-err {
  color: var(--zc-rose);
  margin-top: 10px;
  font-size: 13px;
  min-height: 18px;
}

/* Hide old login-box styles to avoid double rendering if still referenced */
.login-box { all: unset; display: block; }

/* ============================================================
   Remove the old red theme bleeding onto new shell
   ============================================================ */
body > header { border-top: none !important; }

/* ============================================================
   HOME (categories) — hero + grid
   ============================================================ */
.zc-hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 20px;
  margin-bottom: 28px;
}
@media (max-width: 900px) {
  .zc-hero-grid { grid-template-columns: 1fr; }
}

.zc-hero {
  background: linear-gradient(135deg, var(--zc-ink) 0%, var(--zc-graphite) 100%);
  border-radius: 24px;
  padding: 28px 32px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.zc-hero::before {
  content: '';
  position: absolute; inset: 0; opacity: 0.07;
  background-image: repeating-conic-gradient(#fff 0% 25%, transparent 0% 50%);
  background-size: 44px 44px;
  pointer-events: none;
}
.zc-hero__inner { position: relative; }
.zc-hero__greet {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.7);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.zc-hero__title {
  font-family: var(--zc-ff-display);
  font-weight: 600;
  font-size: 40px;
  line-height: 1.1;
  margin: 8px 0 20px;
  letter-spacing: -0.03em;
  color: #fff;
}
.zc-hero .zc-hero__title { color: #fff; }
.zc-hero__title em { color: var(--zc-coral); font-style: italic; font-weight: 600; }
.zc-hero__stats {
  display: flex;
  gap: 28px;
  margin-top: 16px;
  flex-wrap: wrap;
}
.zc-hero__stat-v {
  font-family: var(--zc-ff-display);
  font-size: 36px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
}
.zc-hero__stat-l {
  font-size: 12.5px;
  color: rgba(255,255,255,0.6);
  margin-top: 6px;
  font-weight: 600;
}
.zc-hero__stat-d {
  width: 1px;
  align-self: stretch;
  background: rgba(255,255,255,0.15);
  margin: 0;
}
.zc-hero__cta {
  display: flex;
  gap: 10px;
  margin-top: 24px;
  flex-wrap: wrap;
}
.zc-hero__cta .zc-btn--ghost-on-dark {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.25);
}

.zc-hero-side { display: grid; grid-template-rows: 1fr 1fr; gap: 20px; }

.zc-pair-card .zc-pair-head {
  display: flex;
  align-items: center;
  gap: 12px;
}
.zc-pair-card .zc-pair-role {
  font-size: 12px;
  color: var(--zc-slate);
  font-weight: 600;
}
.zc-pair-card .zc-pair-name {
  font-weight: 700;
  font-size: 15px;
}
.zc-pair-card .zc-pair-status {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--zc-mint);
  font-weight: 700;
}
.zc-pair-card .zc-pair-status::before {
  content: '';
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--zc-mint);
}
.zc-pair-card .zc-pair-msg {
  margin-top: 12px;
  padding: 12px;
  background: var(--zc-brand-soft);
  border-left: 3px solid var(--zc-brand);
  border-radius: 10px;
  font-size: 13px;
  color: var(--zc-ink);
}

.zc-pair-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--zc-coral);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
  overflow: hidden;
  flex-shrink: 0;
}
.zc-pair-avatar img { width: 100%; height: 100%; object-fit: cover; }

.zc-daily-card {
  background: var(--zc-ink);
  color: #fff;
  border-color: var(--zc-ink);
  display: flex;
  align-items: center;
  gap: 18px;
  text-decoration: none;
}
.zc-daily-card:hover { text-decoration: none; }
.zc-daily-card .zc-daily-text { flex: 1; min-width: 0; }
.zc-daily-card .zc-daily-label {
  font-size: 11px;
  color: rgba(255,255,255,0.6);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.zc-daily-card .zc-daily-title {
  font-family: var(--zc-ff-display);
  font-size: 22px;
  font-weight: 600;
  margin-top: 4px;
}
.zc-daily-card .zc-daily-sub {
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  margin-top: 2px;
}
.zc-daily-card .zc-daily-glyph {
  width: 64px; height: 64px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--zc-coral), #ff5470);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}
.zc-daily-card .zc-daily-glyph svg { display: block; }
.zc-cat-card, .zc-daily-card, .zc-card[href] { text-decoration: none; }

/* Section header */
.zc-section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 16px;
  gap: 10px;
  flex-wrap: wrap;
}
.zc-section-sub {
  color: var(--zc-slate);
  margin: 0 0 22px;
  font-size: 14px;
}

/* Category grid — airy style */
.zc-cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}
.zc-cat-card {
  background: #fff;
  border: 1px solid var(--zc-line);
  border-radius: 16px;
  padding: 22px;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: block;
  box-shadow: var(--zc-sh-xs);
  transition: box-shadow .15s, border-color .15s, transform .15s;
}
.zc-cat-card:hover {
  box-shadow: var(--zc-sh-md);
  border-color: var(--zc-brand);
  transform: translateY(-1px);
}
.zc-cat-card__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 14px;
}
.zc-cat-card__glyph {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--zc-canvas);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--zc-ink);
}
.zc-cat-card__name {
  font-family: var(--zc-ff-display);
  font-weight: 600;
  font-size: 19px;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
  line-height: 1.15;
  color: var(--zc-ink);
}
.zc-cat-card__meta {
  font-size: 13px;
  color: var(--zc-slate);
  margin-bottom: 18px;
}
.zc-cat-card__prog {
  display: flex;
  align-items: center;
  gap: 10px;
}
.zc-cat-card__prog-bar {
  flex: 1;
  height: 5px;
  border-radius: 999px;
  background: var(--zc-line);
  overflow: hidden;
}
.zc-cat-card__prog-fill {
  height: 100%;
  background: var(--zc-brand);
  transition: width .5s;
}
.zc-cat-card__prog-v {
  font-size: 12px;
  font-weight: 700;
  color: var(--zc-graphite);
  min-width: 36px;
  text-align: right;
}

/* Breadcrumb / crumbs */
.zc-crumbs {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--zc-slate);
  margin-bottom: 14px;
}
.zc-crumbs a {
  color: var(--zc-brand);
  font-weight: 600;
  text-decoration: none;
}
.zc-crumbs .sep { color: var(--zc-mist); }

/* ============================================================
   COURSE (puzzle solving) — grid: main + sidebar
   ============================================================ */
.zc-course-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.zc-course-head h1 {
  font-family: var(--zc-ff-display);
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0;
}
.zc-theme-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}
.theme-pill {
  display: inline-flex;
  align-items: center;
  padding: 5px 11px;
  background: var(--zc-brand-soft);
  color: var(--zc-brand-deep);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.theme-pill.ghost {
  background: var(--zc-canvas);
  color: var(--zc-graphite);
  border: 1px solid var(--zc-line);
}

/* Course layout */
.zc-course-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 24px;
  align-items: start;
}
@media (max-width: 960px) {
  .zc-course-layout { grid-template-columns: 1fr; }
}

/* Levels list — bigger cards for levels mode */
#levels {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}
.level {
  background: #fff;
  border: 1px solid var(--zc-line);
  border-radius: 16px;
  padding: 18px;
  box-shadow: var(--zc-sh-xs);
  transition: box-shadow .15s, border-color .15s;
}
.level:hover:not(.locked) {
  box-shadow: var(--zc-sh-sm);
  border-color: var(--zc-brand);
}
.level.locked { opacity: 0.45; }
.level.current {
  border-color: var(--zc-brand);
  background: var(--zc-brand-soft);
}
.lvl-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.lvl-head b {
  font-family: var(--zc-ff-display);
  font-size: 18px;
  font-weight: 600;
}
.lvl-head .count {
  margin-left: auto;
  font-size: 12px;
  color: var(--zc-slate);
  font-weight: 600;
}
.lvl-head .lock { font-size: 16px; }
.streak-row {
  font-size: 12.5px;
  color: var(--zc-slate);
  margin-bottom: 8px;
  font-weight: 600;
}
.streak-row b { color: var(--zc-ink); font-weight: 700; }
.streak-cells {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
}
.streak-cells .cell {
  flex: 1;
  aspect-ratio: 1;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  cursor: pointer;
}
.streak-cells .cell.ok   { background: var(--zc-mint); }
.streak-cells .cell.fail { background: var(--zc-rose); }
.streak-cells .cell.empty {
  background: transparent;
  border: 1.5px dashed var(--zc-line);
  cursor: default;
}
.level .play {
  width: 100%;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1.5px solid var(--zc-ink);
  background: var(--zc-ink);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  font-family: var(--zc-ff-ui);
}
.level .play:hover { background: var(--zc-brand); border-color: var(--zc-brand); }

/* Puzzle area (when active) */
#puzzle-area {
  display: block;
}
.puzzle-header {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
  background: #fff;
  border: 1px solid var(--zc-line);
  border-radius: 14px;
  padding: 12px 16px;
}
.puzzle-header #close {
  padding: 7px 13px;
  border-radius: 10px;
  border: 1px solid var(--zc-line);
  background: #fff;
  color: var(--zc-ink);
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  font-family: var(--zc-ff-ui);
}
.puzzle-header #close:hover { border-color: var(--zc-brand); color: var(--zc-brand); }
#puzzle-info {
  display: inline-flex;
  gap: 6px;
  flex-wrap: wrap;
  flex: 1;
}
.pi-meta {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  background: var(--zc-canvas);
  color: var(--zc-graphite);
  border: 1px solid var(--zc-line);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}
.puzzle-code {
  display: inline-flex;
  padding: 4px 10px;
  background: var(--zc-ink);
  color: #fff;
  border-radius: 999px;
  font-family: var(--zc-ff-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.auto-advance {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--zc-slate);
  cursor: pointer;
  margin-left: auto;
  user-select: none;
}
.auto-advance input { accent-color: var(--zc-brand); }

/* Status */
#status {
  text-align: center;
  padding: 14px 20px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 15px;
  background: var(--zc-canvas);
  color: var(--zc-graphite);
  margin: 14px 0 0;
  min-height: 22px;
  box-sizing: border-box;
}
#status.ok   { background: var(--zc-mint-soft); color: #0d7a53; }
#status.fail { background: var(--zc-rose-soft); color: var(--zc-rose); }
#turn-info {
  text-align: center;
  font-size: 13px;
  color: var(--zc-slate);
  margin-top: 6px;
}
#next-area {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 12px;
}
#next-area button {
  padding: 10px 20px;
  border-radius: 12px;
  border: 1.5px solid var(--zc-brand);
  background: var(--zc-brand);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  font-family: var(--zc-ff-ui);
}
#next-area button.secondary {
  background: #fff;
  color: var(--zc-ink);
  border-color: var(--zc-line);
}

/* Viewers strip */
.viewers-strip {
  margin-top: 12px;
  padding: 10px 14px;
  background: var(--zc-ink);
  color: #fff;
  border-radius: 12px;
  font-size: 13px;
}
.viewers-strip .viewer {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-right: 8px;
}
.role-t { color: var(--zc-coral); font-size: 11px; font-weight: 700; margin-left: 2px; }
.role-s { color: var(--zc-brand); font-size: 11px; font-weight: 700; margin-left: 2px; }

/* Comments */
.comments {
  margin-top: 18px;
  background: #fff;
  border: 1px solid var(--zc-line);
  border-radius: 14px;
  padding: 16px;
}
.comments h3 {
  font-family: var(--zc-ff-display);
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 12px;
}
.comment {
  margin-bottom: 12px;
  font-size: 13px;
  line-height: 1.45;
}
.comment .author { font-weight: 700; color: var(--zc-ink); }
.comment .when { font-size: 11px; color: var(--zc-mist); margin-left: 6px; }
.comment .text { color: var(--zc-graphite); margin-top: 2px; }
.comment-form {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}
.comment-form input {
  flex: 1;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--zc-line);
  background: var(--zc-canvas);
  font-family: var(--zc-ff-ui);
  font-size: 13px;
  outline: none;
}
.comment-form input:focus { border-color: var(--zc-brand); }
.comment-form button {
  padding: 10px 16px;
  border-radius: 10px;
  border: none;
  background: var(--zc-ink);
  color: #fff;
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  font-family: var(--zc-ff-ui);
}

/* Feedback details */
.feedback {
  margin-top: 12px;
  background: #fff;
  border: 1px solid var(--zc-line);
  border-radius: 14px;
  padding: 14px 18px;
}
.feedback > summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 13px;
  color: var(--zc-slate);
  user-select: none;
  list-style: none;
}
.feedback > summary::-webkit-details-marker { display: none; }
.feedback[open] > summary { color: var(--zc-ink); margin-bottom: 10px; }
.fb-row { display: flex; gap: 10px; align-items: center; margin-bottom: 8px; flex-wrap: wrap; }
.fb-row label { font-size: 12px; font-weight: 600; color: var(--zc-slate); min-width: 180px; }
.fb-row select,
.fb-row input,
.fb-row textarea {
  flex: 1;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--zc-line);
  background: var(--zc-canvas);
  font-family: var(--zc-ff-ui);
  font-size: 13px;
  outline: none;
}
#fb-send {
  padding: 8px 14px;
  border-radius: 8px;
  border: none;
  background: var(--zc-brand);
  color: #fff;
  font-weight: 700;
  font-size: 12.5px;
  cursor: pointer;
  font-family: var(--zc-ff-ui);
  margin-top: 6px;
}
#fb-status { margin-left: 10px; font-size: 12px; }

/* Pager */
.pager {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--zc-line);
}
.pager-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 8px;
}
.pager-title { font-weight: 700; font-size: 14px; }
.pager-meta { font-size: 12px; color: var(--zc-slate); }
.pager-nav { display: flex; gap: 6px; align-items: center; }
.pager-btn {
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--zc-line);
  background: #fff;
  color: var(--zc-ink);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--zc-ff-ui);
}
.pager-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.pager-page { font-size: 12px; color: var(--zc-slate); font-weight: 600; }
.pager-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(36px, 1fr));
  gap: 5px;
}
.pz-chip {
  padding: 7px 0;
  border-radius: 7px;
  border: 1px solid var(--zc-line);
  background: #fff;
  color: var(--zc-slate);
  font-weight: 700;
  font-size: 12px;
  text-align: center;
  cursor: pointer;
  font-family: var(--zc-ff-ui);
}
.pz-chip:hover { border-color: var(--zc-brand); }
.pz-chip.ok   { background: var(--zc-mint); color: #fff; border-color: var(--zc-mint); }
.pz-chip.fail { background: var(--zc-rose); color: #fff; border-color: var(--zc-rose); }
.pz-chip.active {
  background: var(--zc-ink); color: #fff; border-color: var(--zc-ink);
  box-shadow: 0 0 0 2px var(--zc-brand);
}

/* Annotation hint */
.ann-hint {
  font-size: 11.5px;
  color: var(--zc-slate);
  text-align: center;
  margin-top: 8px;
  padding: 0 8px;
}

/* Sidebar cards */
.zc-side-card {
  background: #fff;
  border: 1px solid var(--zc-line);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: var(--zc-sh-xs);
}
.zc-side-card h3 {
  font-family: var(--zc-ff-display);
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 10px;
}
.zc-side-card--dark {
  background: var(--zc-ink);
  color: #fff;
  border-color: var(--zc-ink);
}
.zc-side-card--dark h3 { color: #fff; }

/* Hide old layout bits */
.crumbs, .subtitle, .cat-grid, .sub-grid, .cat-card, .sub-card,
.cat-name, .cat-meta, .sub-name, .sub-meta, .prog, .prog-row, .prog-bar, .prog-fill,
.themes-row, .themes-label, .board-wrap, .bw-files, .bw-ranks, .bw-inner {
  /* leave untouched — used by not-yet-migrated pages (e.g. boards) */
}