:root {
  color-scheme: dark;
  --kk-canvas: #07111f;
  --kk-canvas-deep: #040a12;
  --kk-surface: #0e1a2b;
  --kk-surface-raised: #14243a;
  --kk-surface-overlay: #1a2e49;
  --kk-border: #29415f;
  --kk-border-strong: #3b5d84;
  --kk-text: #f2f7ff;
  --kk-text-secondary: #b7c7dc;
  --kk-text-muted: #8095b3;
  --kk-gold: #e9b95b;
  --kk-cyan: #42d6cd;
  --kk-blue: #5aa9ff;
  --kk-purple: #a78bfa;
  --kk-success: #43cc8a;
  --kk-warning: #f2bc4d;
  --kk-danger: #ff6b79;
  --kk-neutral: #93a7c2;
  --kk-review-canvas: #f4f1ea;
  --kk-review-surface: #fffdf8;
  --kk-review-text: #202731;
  --kk-font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  --kk-mono: "SFMono-Regular", Menlo, Consolas, monospace;
  --kk-radius-control: 8px;
  --kk-radius-card: 12px;
  --kk-radius-panel: 16px;
  --kk-radius-hero: 20px;
  --kk-shadow-panel: 0 24px 80px rgba(0, 0, 0, .26);
  --kk-ease: 180ms cubic-bezier(.2, .8, .2, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  background: var(--kk-canvas);
  color: var(--kk-text);
  font-family: var(--kk-font);
  font-size: 14px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

button, a, input, select { font: inherit; }

:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--kk-blue) 75%, white);
  outline-offset: 3px;
}

.kk-num {
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
}

.kk-meta {
  color: var(--kk-text-muted);
  font-family: var(--kk-mono);
  font-size: 11px;
  letter-spacing: .01em;
}

.kk-btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid var(--kk-border);
  border-radius: var(--kk-radius-control);
  background: var(--kk-surface-raised);
  color: var(--kk-text);
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--kk-ease), border-color var(--kk-ease), background var(--kk-ease);
}

.kk-btn:hover {
  transform: translateY(-1px);
  border-color: var(--kk-blue);
  background: var(--kk-surface-overlay);
}

.kk-btn--primary {
  border-color: color-mix(in srgb, var(--kk-blue) 75%, white);
  background: var(--kk-blue);
  color: var(--kk-canvas-deep);
  font-weight: 750;
}

.kk-card {
  border: 1px solid var(--kk-border);
  border-radius: var(--kk-radius-card);
  background: var(--kk-surface);
}

.kk-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 28px;
  padding: 4px 9px;
  border: 1px solid var(--kk-border);
  border-radius: 9999px;
  background: var(--kk-surface-overlay);
  color: var(--kk-text-secondary);
  font-size: 11px;
  font-weight: 650;
  white-space: nowrap;
}

.kk-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}