/* Self-hosted variable fonts (latin + cyrillic), OFL — see assets/fonts/LICENSE-* */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src:
    url("/assets/fonts/inter-cyrillic-wght-normal.woff2") format("woff2") tech("variations"),
    url("/assets/fonts/inter-cyrillic-wght-normal.woff2") format("woff2-variations"),
    url("/assets/fonts/inter-cyrillic-wght-normal.woff2") format("woff2");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src:
    url("/assets/fonts/inter-latin-wght-normal.woff2") format("woff2") tech("variations"),
    url("/assets/fonts/inter-latin-wght-normal.woff2") format("woff2-variations"),
    url("/assets/fonts/inter-latin-wght-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-display: swap;
  font-weight: 100 800;
  src:
    url("/assets/fonts/jetbrains-mono-cyrillic-wght-normal.woff2") format("woff2") tech("variations"),
    url("/assets/fonts/jetbrains-mono-cyrillic-wght-normal.woff2") format("woff2-variations"),
    url("/assets/fonts/jetbrains-mono-cyrillic-wght-normal.woff2") format("woff2");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}

@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-display: swap;
  font-weight: 100 800;
  src:
    url("/assets/fonts/jetbrains-mono-latin-wght-normal.woff2") format("woff2") tech("variations"),
    url("/assets/fonts/jetbrains-mono-latin-wght-normal.woff2") format("woff2-variations"),
    url("/assets/fonts/jetbrains-mono-latin-wght-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  color-scheme: light;

  /* Typography */
  --font-family-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-family-mono: "JetBrains Mono", "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2.25rem;
  --line-height-tight: 1.25;
  --line-height-base: 1.6;
  --line-height-loose: 1.75;

  /* 8px spacing scale */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.5rem;
  --spacing-6: 2rem;
  --spacing-7: 3rem;
  --spacing-8: 4rem;

  /* Legacy aliases for current components */
  --spacing-xs: var(--spacing-2);
  --spacing-sm: var(--spacing-4);
  --spacing-md: var(--spacing-6);
  --spacing-lg: var(--spacing-7);
  --spacing-xl: var(--spacing-8);

  /* Surfaces and text */
  --bg-primary: #f3f6fa;
  --bg-secondary: #e7ecf2;
  --surface-elevated: #f7faff;
  --text-primary: #132030;
  --text-secondary: #4d5f73;
  --text-muted: #556881;

  /* Brand accent (AA on light surfaces; white-on-accent AA) */
  --accent-color: #0d7377;
  --accent-hover: #0f766e;
  --accent-fg: #ffffff;

  /* Borders and effects */
  --border-color: #c3d0df;
  --border-strong: #a9bad0;
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --shadow: rgba(10, 20, 35, 0.12);
  --shadow-hover: rgba(10, 20, 35, 0.2);

  /* Focus and motion */
  --focus-ring-color: rgba(13, 115, 119, 0.55);
  --transition-fast: 160ms ease;
  --transition-base: 240ms ease;
}

[data-theme="dark"] {
  color-scheme: dark;

  --bg-primary: #0b1119;
  --bg-secondary: #111a26;
  --surface-elevated: #182434;
  --text-primary: #e8eef6;
  --text-secondary: #b2c0d2;
  --text-muted: #8fa3bb;

  --accent-color: #16cfd9;
  --accent-hover: #44dfe6;
  --accent-fg: #0b1119;

  --border-color: #233346;
  --border-strong: #31455f;
  --shadow: rgba(0, 0, 0, 0.36);
  --shadow-hover: rgba(0, 0, 0, 0.52);
  --focus-ring-color: rgba(68, 223, 230, 0.42);
}