/* 大连景途智创科技有限公司 · Spatial Tech tokens
 * 方向：Apple 式空间叙事 + Swiss 网格 + 深海蓝 / 极光青
 */

:root {
  color-scheme: light;

  --color-bg-primary: #101218;
  --color-bg-secondary: #181b23;
  --color-bg-tertiary: #20232b;
  --color-bg-inverse: #f7f0e6;
  --color-bg-inverse-soft: #efe3d2;
  --color-text-primary: #f1e7d8;
  --color-text-secondary: #b8aea0;
  --color-text-tertiary: #9d9487;
  --color-text-inverse: #25221f;
  --color-text-link: #f0c088;
  --color-border-primary: rgb(255 255 255 / 0.12);
  --color-border-secondary: rgb(255 255 255 / 0.075);
  --color-border-focus: #f0c088;
  --color-accent-primary: #e8a75c;
  --color-accent-primary-hover: #f0c088;
  --color-accent-primary-active: #c7813e;
  --color-accent-secondary: #8ca697;
  --color-accent-deep: #7b98ad;
  --color-status-success: #8ca697;
  --color-status-warning: #c9a15e;
  --color-status-error: #d08a7e;
  --color-status-info: #7b98ad;
  --color-surface-overlay: rgb(16 18 24 / 0.82);

  --font-family-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-family-body: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-family-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-md: 1.125rem;
  --font-size-lg: 1.375rem;
  --font-size-xl: 1.75rem;
  --font-size-2xl: 2.5rem;
  --font-size-3xl: clamp(3rem, 6vw, 6.5rem);
  --font-size-4xl: clamp(4rem, 10vw, 10.5rem);
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --line-height-tight: 1.08;
  --line-height-normal: 1.55;
  --line-height-relaxed: 1.8;
  --letter-spacing-tight: -0.045em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.14em;

  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
  --space-10: 8rem;
  --space-11: 12rem;
  --space-12: 16rem;

  --max-width-content: 760px;
  --max-width-wide: 1000px;
  --max-width-page: 1200px;
  --border-radius-sm: 6px;
  --border-radius-md: 12px;
  --border-radius-lg: 24px;
  --border-radius-full: 999px;
  --shadow-sm: 0 2px 12px rgb(7 26 40 / 0.06);
  --shadow-md: 0 14px 38px rgb(7 26 40 / 0.1);
  --shadow-lg: 0 28px 80px rgb(7 26 40 / 0.16);
  --shadow-focus: 0 0 0 3px rgb(78 140 255 / 0.32);

  --duration-instant: 50ms;
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 400ms;
  --duration-slower: 600ms;
  --easing-default: cubic-bezier(0.4, 0, 0.2, 1);
  --easing-in: cubic-bezier(0.4, 0, 1, 1);
  --easing-out: cubic-bezier(0, 0, 0.2, 1);
  --easing-spatial: cubic-bezier(0.22, 1, 0.36, 1);

  --breakpoint-sm: 375px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;
}

[data-theme="light"] {
  color-scheme: light;
  --color-bg-primary: #f4eee5;
  --color-bg-secondary: #fffaf2;
  --color-bg-tertiary: #ebe3d8;
  --color-bg-inverse: #101218;
  --color-bg-inverse-soft: #181b23;
  --color-text-primary: #272421;
  --color-text-secondary: #665f58;
  --color-text-tertiary: #7d746b;
  --color-text-inverse: #f1e7d8;
  --color-text-link: #8e531f;
  --color-border-primary: rgb(39 36 33 / 0.14);
  --color-border-secondary: rgb(39 36 33 / 0.08);
  --color-border-focus: #ad6729;
  --color-accent-primary: #ad6729;
  --color-accent-primary-hover: #c17a35;
  --color-accent-primary-active: #8e531f;
  --color-accent-secondary: #607d6e;
  --color-accent-deep: #607384;
  --color-status-success: #607d6e;
  --color-status-warning: #9a762e;
  --color-status-error: #a85e55;
  --color-status-info: #607384;
  --color-surface-overlay: rgb(16 18 24 / 0.72);
}

[data-theme="dark"] {
  color-scheme: dark;
  --color-bg-primary: #101218;
  --color-bg-secondary: #181b23;
  --color-bg-tertiary: #20232b;
  --color-bg-inverse: #f7f0e6;
  --color-bg-inverse-soft: #efe3d2;
  --color-text-primary: #f1e7d8;
  --color-text-secondary: #b8aea0;
  --color-text-tertiary: #9d9487;
  --color-text-inverse: #25221f;
  --color-text-link: #f0c088;
  --color-border-primary: rgb(255 255 255 / 0.12);
  --color-border-secondary: rgb(255 255 255 / 0.075);
  --color-border-focus: #f0c088;
  --color-accent-primary: #e8a75c;
  --color-accent-primary-hover: #f0c088;
  --color-accent-primary-active: #c7813e;
  --color-accent-secondary: #8ca697;
  --color-accent-deep: #7b98ad;
  --color-status-success: #8ca697;
  --color-status-warning: #c9a15e;
  --color-status-error: #d08a7e;
  --color-status-info: #7b98ad;
  --color-surface-overlay: rgb(16 18 24 / 0.82);
  --shadow-sm: 0 2px 12px rgb(0 0 0 / 0.16);
  --shadow-md: 0 14px 38px rgb(0 0 0 / 0.24);
  --shadow-lg: 0 28px 80px rgb(0 0 0 / 0.36);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --color-bg-primary: #101218;
    --color-bg-secondary: #181b23;
    --color-bg-tertiary: #20232b;
    --color-bg-inverse: #f7f0e6;
    --color-text-primary: #f1e7d8;
    --color-text-secondary: #b8aea0;
    --color-text-tertiary: #9d9487;
    --color-text-inverse: #25221f;
    --color-text-link: #f0c088;
    --color-border-primary: rgb(255 255 255 / 0.12);
    --color-border-secondary: rgb(255 255 255 / 0.075);
    --color-border-focus: #f0c088;
    --color-accent-primary: #e8a75c;
    --color-accent-secondary: #8ca697;
    --shadow-sm: 0 2px 12px rgb(0 0 0 / 0.16);
  }
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --duration-fast: 0ms;
    --duration-normal: 0ms;
    --duration-slow: 0ms;
    --duration-slower: 0ms;
  }
}