/* ====================================================================
   SHARED KIT BASE — used by all UI variations 31–40
   Reference platform aesthetic: "Neon Game Show Meets Modern Lounge"
   Each variation overrides --r, --shadow, --press, --pad, etc.
   ==================================================================== */

.kit-page {
  --k-bg:        #070b1a;
  --k-bg-2:      #0f172a;
  --k-bg-3:      #1e293b;
  --k-surface:   rgba(255, 255, 255, 0.04);
  --k-surface-2: rgba(255, 255, 255, 0.07);
  --k-border:    rgba(255, 255, 255, 0.1);
  --k-border-2:  rgba(255, 255, 255, 0.16);
  --k-ink:       #f4f4f7;
  --k-ink-2:     #cad0de;
  --k-ink-3:     #8a93ab;
  --k-mute:      #5a6378;

  --k-success:   #34d399;
  --k-warning:   #fbbf24;
  --k-danger:    #f87171;
  --k-info:      #60a5fa;

  --k-accent:     var(--color-accent, #7c3aed);
  --k-accent-rgb: var(--accent-rgb, 124, 58, 237);
  --k-glow:       rgba(var(--k-accent-rgb), 0.45);

  /* Defaults — each variation overrides */
  --k-r-sm:    6px;
  --k-r-md:    10px;
  --k-r-lg:    14px;
  --k-r-pill:  999px;

  --k-pad-sm:  0.5rem;
  --k-pad:     0.85rem 1.2rem;
  --k-pad-lg:  1.5rem;

  --k-font-display: 'Space Grotesk', 'Inter Tight', system-ui, sans-serif;
  --k-font-body:    'Inter', system-ui, sans-serif;
  --k-font-mono:    'JetBrains Mono', ui-monospace, monospace;

  --k-card-bg:    var(--k-surface);
  --k-card-blur:  blur(12px);
  --k-shadow-sm:  0 4px 12px rgba(0,0,0,0.25);
  --k-shadow-md:  0 14px 40px -10px rgba(0,0,0,0.35);

  background:
    radial-gradient(ellipse 70% 50% at 50% 0%, rgba(var(--k-accent-rgb), 0.16) 0%, transparent 60%),
    radial-gradient(ellipse 50% 35% at 90% 80%, rgba(var(--k-accent-rgb), 0.08) 0%, transparent 60%),
    var(--k-bg);
  color: var(--k-ink);
  font-family: var(--k-font-body);
  font-size: 16px;
  line-height: 1.55;
}

/* Light themes — paper variant */
[data-theme="arctic"] .kit-page,
[data-theme="ivory"]  .kit-page,
[data-theme="rose"]   .kit-page,
[data-theme="sage"]   .kit-page {
  --k-bg:        #f4f4f7;
  --k-bg-2:      #ebebef;
  --k-bg-3:      #dfdfe6;
  --k-surface:   #ffffff;
  --k-surface-2: #f0f0f3;
  --k-border:    #d8d8de;
  --k-border-2:  #c0c0c8;
  --k-ink:       #0d0d12;
  --k-ink-2:     #2d2d35;
  --k-ink-3:     #5a5e68;
  --k-mute:      #8a8d97;
  --k-card-bg:   #ffffff;
}

.kit-page main { position: relative; z-index: 2; }

/* ==== Shell ==== */

.kit-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1.75rem 1.25rem 4rem;
}

/* ==== Topbar ==== */

.kit-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--k-border);
  margin-bottom: 2rem;
  font-family: var(--k-font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--k-ink-3);
}

.kit-topbar a {
  color: var(--k-accent);
  text-decoration: none;
  border-bottom: 1px solid var(--k-accent);
  padding-bottom: 2px;
}

/* ==== Type ==== */

.kit-pre {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--k-font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--k-ink-3);
}

.kit-pre::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--k-accent);
  box-shadow: 0 0 8px var(--k-glow);
}

.kit-h1 {
  font-family: var(--k-font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0.6rem 0 0.6rem;
}

.kit-h1 .acc { color: var(--k-accent); }

.kit-h2 {
  font-family: var(--k-font-display);
  font-weight: 600;
  font-size: clamp(1.4rem, 2.4vw, 1.85rem);
  letter-spacing: -0.015em;
  margin: 0 0 0.6rem;
  line-height: 1.15;
}

.kit-h2 .acc { color: var(--k-accent); }

.kit-lede {
  font-size: 1.05rem;
  line-height: 1.65;
  max-width: 60ch;
  color: var(--k-ink-2);
  margin: 0 0 1.5rem;
}

/* ==== Hero ==== */

.kit-hero {
  padding: 1.5rem 0 2.5rem;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (max-width: 900px) { .kit-hero { grid-template-columns: 1fr; } }

/* Visual sample (mini brainflood mockup in the hero side) */

.kit-mock {
  background: var(--k-card-bg);
  border: 1px solid var(--k-border);
  border-radius: var(--k-r-lg);
  padding: 1.25rem;
  backdrop-filter: var(--k-card-blur);
  -webkit-backdrop-filter: var(--k-card-blur);
  box-shadow: var(--k-shadow-md);
}

.kit-mock-h {
  display: flex;
  justify-content: space-between;
  font-family: var(--k-font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--k-ink-3);
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--k-border);
  margin-bottom: 1rem;
}

.kit-mock-h .live {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--k-accent);
}

.kit-mock-h .live::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--k-accent);
  box-shadow: 0 0 8px var(--k-glow);
}

.kit-mock-q {
  font-family: var(--k-font-display);
  font-weight: 600;
  font-size: 1.1rem;
  margin: 0 0 1rem;
  line-height: 1.3;
  letter-spacing: -0.005em;
}

.kit-mock-opts {
  display: grid;
  gap: 0.5rem;
}

.kit-mock-opt {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 0.55rem;
  padding: 0.55rem 0.8rem;
  background: var(--k-surface-2);
  border: 1px solid var(--k-border);
  border-radius: var(--k-r-sm);
  font-size: 0.92rem;
  align-items: center;
}

.kit-mock-opt .letter {
  font-family: var(--k-font-mono);
  font-size: 0.85rem;
  color: var(--k-accent);
  text-align: center;
}

.kit-mock-opt.correct {
  border-color: var(--k-accent);
  background: rgba(var(--k-accent-rgb), 0.12);
  color: var(--k-ink);
}

.kit-mock-opt .tally {
  font-family: var(--k-font-mono);
  font-size: 0.78rem;
  color: var(--k-ink-3);
}

/* ==== Section ==== */

.kit-section {
  padding: 2rem 0;
  border-top: 1px solid var(--k-border);
}

/* ==== Buttons ==== */

.kit-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

.kit-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: var(--k-pad);
  font-family: var(--k-font-display);
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  border-radius: var(--k-r-md);
  border: 1px solid var(--k-accent);
  background: var(--k-accent);
  color: #fff;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  box-shadow: var(--k-shadow-sm);
}

.kit-btn:hover { transform: translateY(-1px); }

.kit-btn-secondary {
  background: var(--k-surface-2);
  color: var(--k-ink);
  border-color: var(--k-border-2);
  box-shadow: none;
}

.kit-btn-ghost {
  background: transparent;
  color: var(--k-ink);
  border-color: var(--k-border-2);
  box-shadow: none;
}

.kit-btn-danger {
  background: var(--k-danger);
  border-color: var(--k-danger);
}

.kit-btn-success {
  background: var(--k-success);
  border-color: var(--k-success);
  color: #0d2a1f;
}

.kit-btn-sm { padding: 0.5rem 0.85rem; font-size: 0.82rem; }
.kit-btn-lg { padding: 1.05rem 1.6rem; font-size: 1.05rem; }

/* ==== Dialog mockup ==== */

.kit-dialog-frame {
  position: relative;
  margin-top: 1rem;
  background: rgba(0, 0, 0, 0.32);
  border: 1px dashed var(--k-border-2);
  border-radius: var(--k-r-lg);
  padding: 2.5rem 1.5rem 1.5rem;
  overflow: hidden;
}

.kit-dialog-frame::before {
  content: "BACKDROP";
  position: absolute;
  top: 0.5rem;
  left: 0.7rem;
  font-family: var(--k-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--k-ink-3);
}

.kit-dialog {
  max-width: 460px;
  margin: 0 auto;
  background: var(--k-card-bg);
  border: 1px solid var(--k-border-2);
  border-radius: var(--k-r-lg);
  padding: 1.5rem 1.4rem 1.25rem;
  backdrop-filter: var(--k-card-blur);
  -webkit-backdrop-filter: var(--k-card-blur);
  box-shadow: var(--k-shadow-md);
}

.kit-dialog h3 {
  font-family: var(--k-font-display);
  font-weight: 600;
  font-size: 1.25rem;
  margin: 0 0 0.4rem;
  letter-spacing: -0.01em;
}

.kit-dialog p {
  color: var(--k-ink-2);
  font-size: 0.95rem;
  line-height: 1.55;
  margin: 0 0 1.25rem;
}

.kit-dialog-actions {
  display: flex;
  gap: 0.6rem;
  justify-content: flex-end;
}

/* ==== Cards ==== */

.kit-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}

@media (max-width: 880px) { .kit-cards { grid-template-columns: 1fr; } }

.kit-card {
  background: var(--k-card-bg);
  border: 1px solid var(--k-border);
  border-radius: var(--k-r-lg);
  padding: 1.25rem;
  backdrop-filter: var(--k-card-blur);
  -webkit-backdrop-filter: var(--k-card-blur);
  box-shadow: var(--k-shadow-sm);
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.kit-card:hover { border-color: var(--k-accent); transform: translateY(-2px); }

.kit-card-h {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.55rem;
}

.kit-card-h h4 {
  font-family: var(--k-font-display);
  font-weight: 600;
  font-size: 1.05rem;
  margin: 0;
  letter-spacing: -0.005em;
}

.kit-card-badge {
  font-family: var(--k-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.18rem 0.5rem;
  border-radius: var(--k-r-pill);
  background: rgba(var(--k-accent-rgb), 0.12);
  color: var(--k-accent);
  border: 1px solid rgba(var(--k-accent-rgb), 0.3);
}

.kit-card p { color: var(--k-ink-2); font-size: 0.9rem; margin: 0 0 0.75rem; line-height: 1.5; }

.kit-card-meta {
  font-family: var(--k-font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--k-ink-3);
  display: flex;
  justify-content: space-between;
  padding-top: 0.6rem;
  border-top: 1px solid var(--k-border);
}

.kit-card-meta .acc { color: var(--k-accent); }

/* ==== Form ==== */

.kit-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1rem;
}

@media (max-width: 720px) { .kit-form { grid-template-columns: 1fr; } }

.kit-field { display: flex; flex-direction: column; gap: 0.3rem; }

.kit-field label {
  font-family: var(--k-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--k-ink-3);
  font-weight: 600;
}

.kit-field input,
.kit-field select,
.kit-field textarea {
  padding: 0.7rem 0.9rem;
  background: var(--k-surface);
  color: var(--k-ink);
  border: 1px solid var(--k-border-2);
  border-radius: var(--k-r-sm);
  font-family: var(--k-font-body);
  font-size: 0.95rem;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.kit-field input:focus,
.kit-field select:focus,
.kit-field textarea:focus {
  outline: 0;
  border-color: var(--k-accent);
  box-shadow: 0 0 0 3px rgba(var(--k-accent-rgb), 0.22);
}

.kit-field textarea { min-height: 80px; resize: vertical; }

.kit-field.full { grid-column: 1 / -1; }

.kit-checkbox {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.92rem;
  color: var(--k-ink-2);
}

.kit-checkbox input {
  width: 18px;
  height: 18px;
  accent-color: var(--k-accent);
}

/* ==== Tabs / pills ==== */

.kit-tabs {
  display: inline-flex;
  gap: 0.25rem;
  padding: 0.25rem;
  background: var(--k-surface);
  border: 1px solid var(--k-border);
  border-radius: var(--k-r-pill);
  margin-top: 1rem;
  flex-wrap: wrap;
}

.kit-tab {
  padding: 0.45rem 0.95rem;
  font-family: var(--k-font-body);
  font-weight: 500;
  font-size: 0.88rem;
  border-radius: var(--k-r-pill);
  color: var(--k-ink-3);
  border: 0;
  background: transparent;
  cursor: default;
  transition: background 0.15s ease, color 0.15s ease;
}

.kit-tab.active { background: var(--k-accent); color: #fff; }
.kit-tab:not(.active):hover { color: var(--k-ink); background: var(--k-surface-2); }

/* ==== Status badges + toasts ==== */

.kit-toasts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
  margin-top: 1rem;
}

@media (max-width: 720px) { .kit-toasts { grid-template-columns: 1fr; } }

.kit-toast {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 0.65rem;
  padding: 0.85rem 1rem;
  background: var(--k-card-bg);
  border: 1px solid var(--k-border-2);
  border-radius: var(--k-r-md);
  backdrop-filter: var(--k-card-blur);
  -webkit-backdrop-filter: var(--k-card-blur);
}

.kit-toast .ico {
  font-family: var(--k-font-mono);
  font-weight: 700;
  font-size: 0.95rem;
  text-align: center;
  line-height: 1.4;
}

.kit-toast .body { font-size: 0.88rem; line-height: 1.4; color: var(--k-ink); }
.kit-toast .body small { display: block; color: var(--k-ink-3); font-size: 0.76rem; margin-top: 1px; }

.kit-toast.success { border-left: 3px solid var(--k-success); }
.kit-toast.success .ico { color: var(--k-success); }

.kit-toast.danger { border-left: 3px solid var(--k-danger); }
.kit-toast.danger .ico { color: var(--k-danger); }

.kit-toast.info { border-left: 3px solid var(--k-info); }
.kit-toast.info .ico { color: var(--k-info); }

/* Status badges row */

.kit-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1rem;
}

.kit-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  font-family: var(--k-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--k-r-pill);
  border: 1px solid var(--k-border-2);
  background: var(--k-surface);
  color: var(--k-ink-2);
}

.kit-badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

.kit-badge.live    { color: var(--k-accent); border-color: rgba(var(--k-accent-rgb), 0.35); background: rgba(var(--k-accent-rgb), 0.1); }
.kit-badge.success { color: var(--k-success); border-color: rgba(52, 211, 153, 0.35); background: rgba(52, 211, 153, 0.1); }
.kit-badge.warning { color: var(--k-warning); border-color: rgba(251, 191, 36, 0.35); background: rgba(251, 191, 36, 0.1); }
.kit-badge.danger  { color: var(--k-danger); border-color: rgba(248, 113, 113, 0.35); background: rgba(248, 113, 113, 0.1); }

/* ==== Footer ==== */

.kit-foot {
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--k-border);
  display: flex;
  justify-content: space-between;
  font-family: var(--k-font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--k-ink-3);
  flex-wrap: wrap;
  gap: 1rem;
}

.kit-foot a { color: var(--k-accent); text-decoration: none; border-bottom: 1px solid var(--k-accent); padding-bottom: 2px; }

/* ==== Variation header / metadata ==== */

.kit-var {
  background: var(--k-card-bg);
  border: 1px solid var(--k-border);
  border-radius: var(--k-r-md);
  padding: 1rem 1.25rem;
  margin: 1rem 0 1.5rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1.25rem;
  align-items: center;
  font-family: var(--k-font-mono);
  font-size: 0.82rem;
}

@media (max-width: 720px) { .kit-var { grid-template-columns: 1fr; gap: 0.5rem; } }

.kit-var-num {
  font-family: var(--k-font-display);
  font-weight: 700;
  font-size: 2.2rem;
  color: var(--k-accent);
  letter-spacing: -0.04em;
  line-height: 0.9;
}

.kit-var-info { color: var(--k-ink-2); }
.kit-var-info strong { color: var(--k-ink); font-family: var(--k-font-display); font-size: 1.1rem; display: block; margin-bottom: 0.15rem; font-weight: 600; }

.kit-var-changes {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.kit-var-changes .chip {
  padding: 0.18rem 0.55rem;
  border-radius: var(--k-r-pill);
  background: rgba(var(--k-accent-rgb), 0.12);
  color: var(--k-accent);
  border: 1px solid rgba(var(--k-accent-rgb), 0.3);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
}

.emoji {
  font-family: 'Noto Color Emoji', 'Apple Color Emoji', 'Segoe UI Emoji', 'Twemoji Mozilla', 'EmojiOne Color', 'Android Emoji', 'Segoe UI Symbol', sans-serif;
  font-variant-emoji: emoji;
}

@media (prefers-reduced-motion: reduce) {
  .kit-btn:hover, .kit-card:hover { transform: none; }
}