/* Kashi — design tokens (Tastefolio). Persian heritage: plaster ivory, lajevard (lapis) structure, firouzeh (turquoise)
   as the brand glaze, saffron and pomegranate accents, girih star patterns, pointed arches, a classical serif display (Vazirmatn for Persian). */
:root {
  --canvas: #f5eedf;          /* plaster ivory */
  --surface: #fbf7ee;
  --surface-2: #efe5d0;
  --surface-3: #e4d6b9;
  --surface-ink: #13285c;     /* lajevard night — bands, sidebar, footer */
  --overlay: rgba(12, 20, 46, .58);

  --ink: #1b1d33;
  --ink-2: #4a4a5e;
  --ink-3: #75707c;
  --ink-inverse: #fbf7ee;

  --line: #dfd1b3;
  --line-2: #c5ae84;           /* gilded rule */

  --brand: #0c7c7a;            /* firouzeh glaze — primary actions, active states */
  --brand-ink: #ffffff;
  --brand-soft: color-mix(in oklab, var(--brand) 13%, #fbf7ee);
  --brand-strong: color-mix(in oklab, var(--brand) 72%, #000);
  --lajevard: #1d3f8f;         /* structural blue: headings, bands, frames */
  --lajevard-deep: #13285c;
  --saffron: #dc9a22;          /* ornament highlights, stars, "reserved" */
  --anar: #b3362d;             /* pomegranate — alerts, price emphasis */
  --gilt: #b8902f;
  --focus: var(--lajevard);

  --success: #3c7a37;
  --success-soft: #e3eedb;
  --warning: #a8670d;
  --warning-soft: #f8e9cc;
  --danger: var(--anar);
  --danger-soft: #f6dfda;
  --info: var(--lajevard);
  --info-soft: #e0e6f4;

  --pattern: var(--lajevard);  /* girih line color on light grounds */

  --chart-1: var(--brand);
  --chart-2: var(--lajevard);
  --chart-3: var(--saffron);
  --chart-4: var(--anar);
  --chart-5: #6c8a35;
  --chart-6: #7d5a96;
  --chart-grid: #e6dac1;
  --chart-axis: var(--ink-3);
  --chart-curve: smooth;
  --chart-stroke: 2;
  --chart-area: .16;
  --chart-radius: 4;
  --chart-bar-gap: .32;
  --chart-donut: 20;
  --chart-gap: 3;
  --chart-dots: 1;

  --font-sans: "Alegreya Sans", "Vazirmatn", system-ui, sans-serif;
  --font-display: "Cormorant Garamond", "Vazirmatn", Georgia, serif;
  --font-verse: "Vazirmatn", sans-serif;   /* Persian verses: light Vazirmatn */
  --font-mono: ui-monospace, "SF Mono", Menlo, "Vazirmatn", monospace;
  --fs-xs: 12px;
  --fs-sm: 14px;
  --fs-md: 17px;
  --fs-lg: 20px;
  --fs-xl: 26px;
  --fs-2xl: 34px;
  --fs-3xl: 46px;
  --fs-display: clamp(46px, 7vw, 100px);
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-bold: 700;
  --fw-display: 600;
  --lh-tight: 1.02;
  --lh-snug: 1.25;
  --lh-body: 1.6;
  --tracking-display: -.01em;
  --tracking-caps: .16em;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 72px;
  --space-9: 104px;
  --space-10: 144px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-pill: 999px;
  --border-w: 1px;
  --shadow-1: 0 1px 2px rgba(70, 48, 12, .08);
  --shadow-2: 0 2px 4px rgba(70, 48, 12, .06), 0 14px 30px -14px rgba(70, 48, 12, .28);
  --shadow-3: 0 30px 70px -20px rgba(19, 40, 92, .45);

  --container: 1200px;
  --gutter: clamp(18px, 4vw, 40px);
  --control-h: 42px;
  --control-h-lg: 52px;

  --ease: cubic-bezier(.3, .7, .2, 1);
  --dur-1: 160ms;
  --dur-2: 280ms;
  --dur-3: 520ms;
  color-scheme: light;
}

[data-theme="dark"] {
  /* "lajevard night": deep lapis ground, glaze stays luminous */
  --canvas: #0e1631;
  --surface: #142047;
  --surface-2: #1a2857;
  --surface-3: #233369;
  --surface-ink: #08102a;
  --overlay: rgba(4, 8, 22, .7);
  --ink: #f3ead6;
  --ink-2: #c9c0ad;
  --ink-3: #9590a0;
  --ink-inverse: #0e1631;
  --line: rgba(222, 196, 140, .18);
  --line-2: rgba(222, 196, 140, .38);
  --brand: #37bdb6;
  --brand-ink: #062322;
  --brand-soft: color-mix(in oklab, var(--brand) 18%, transparent);
  --lajevard: #8fb0f2;
  --saffron: #f0b545;
  --anar: #ef6b5f;
  --focus: var(--saffron);
  --success: #8ccf7e;
  --success-soft: rgba(140, 207, 126, .15);
  --warning: #f0b545;
  --warning-soft: rgba(240, 181, 69, .15);
  --danger-soft: rgba(239, 107, 95, .16);
  --info-soft: rgba(143, 176, 242, .16);
  --pattern: var(--saffron);
  --chart-grid: rgba(222, 196, 140, .14);
  --shadow-2: 0 18px 40px -18px rgba(0, 0, 0, .6);
  color-scheme: dark;
}

:root:lang(fa) {
  --font-sans: "Vazirmatn", "Alegreya Sans", Tahoma, sans-serif;
  --font-display: "Vazirmatn", sans-serif;
  --fw-display: 300;          /* light Vazirmatn in lajevard reads like an inscription */
  --fs-md: 16px;
  --fs-display: clamp(40px, 5.6vw, 80px);
  --lh-tight: 1.45;
  --lh-snug: 1.7;
  --lh-body: 1.95;
  --tracking-display: 0;
  --tracking-caps: 0;
}