/* Modernist design system — token sheet + component layer.
   Reconstructed from design-system-readme.md for Kairus Development.
   Flat, architectural, red-on-white, Archivo everywhere, radius 0, 2px rules. */

@import url('https://fonts.googleapis.com/css2?family=Archivo:ital,wght@0,400;0,500;0,600;0,700;0,800;0,900;1,400&display=swap');

:root {
  /* color roles */
  --color-bg: #f3f2f2;
  --color-surface: #ffffff;
  --color-text: #201e1d;
  --color-accent: #ec3013;
  --color-divider: #201e1d;

  /* accent ramp (OKLCH-derived, shared lightness scale) */
  --color-accent-100: #fde7e2;
  --color-accent-200: #fac7bc;
  --color-accent-300: #f6a191;
  --color-accent-400: #f16e55;
  --color-accent-500: #ec3013;
  --color-accent-600: #d02a10;
  --color-accent-700: #ae230d;
  --color-accent-800: #871b0a;
  --color-accent-900: #5f1307;

  /* neutral ramp */
  --color-neutral-100: #eae9e8;
  --color-neutral-200: #dbd9d8;
  --color-neutral-300: #c2bfbd;
  --color-neutral-400: #a29e9c;
  --color-neutral-500: #7f7b79;
  --color-neutral-600: #615d5b;
  --color-neutral-700: #474442;
  --color-neutral-800: #34312f;
  --color-neutral-900: #201e1d;

  /* mono scheme: accent-2 resolves to accent */
  --color-accent-2-100: var(--color-accent-100);
  --color-accent-2-500: var(--color-accent-500);
  --color-accent-2-700: var(--color-accent-700);

  /* type */
  --font-heading: 'Archivo', system-ui, sans-serif;
  --font-heading-weight: 800;
  --font-body: 'Archivo', system-ui, sans-serif;

  /* spacing (density 1.00) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 64px;
  --space-8: 96px;

  /* radius 0 on purpose */
  --radius-sm: 0;
  --radius-md: 0;
  --radius-lg: 0;

  /* elevation, tuned to the ground */
  --shadow-sm: 0 1px 2px rgba(32, 30, 29, .08);
  --shadow-md: 0 4px 14px rgba(32, 30, 29, .10);
  --shadow-lg: 0 14px 36px rgba(32, 30, 29, .16);
}

/* base */
html {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 28px;
  -webkit-font-smoothing: antialiased;
  text-size-adjust: 100%;
}
body { margin: 0; }
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
}
img { max-width: 100%; display: block; }
::selection { background: var(--color-accent-200); }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
:disabled { opacity: .45; }

/* .btn — labels flush left, even in wide buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  text-align: left;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  padding: 16px 22px;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  background: none;
  color: var(--color-text);
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.btn-primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #f7f6f5;
}
.btn-primary:hover { background: var(--color-accent-600); border-color: var(--color-accent-600); color: var(--color-bg); }
.btn-primary:active { background: var(--color-accent-700); border-color: var(--color-accent-700); }
.btn-secondary { border-color: var(--color-text); }
.btn-secondary:hover { background: color-mix(in srgb, var(--color-text) 8%, transparent); }
.btn-secondary:active { background: color-mix(in srgb, var(--color-text) 14%, transparent); }
.btn-ghost { border-color: var(--color-text); background: transparent; }
.btn-ghost:hover { background: color-mix(in srgb, var(--color-text) 8%, transparent); }
.btn-block { width: 100%; }
.btn-icon { padding: 14px; }

/* .tag */
.tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 11px;
  line-height: 1;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 5px 8px;
  vertical-align: middle;
}
.tag-accent, .tag-accent-2 { background: var(--color-accent-100); color: var(--color-accent-700); }
.tag-neutral { background: var(--color-neutral-100); color: var(--color-neutral-700); }
.tag-outline { border: 2px solid var(--color-text); }

/* .nav */
.nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.5vw, 36px);
  padding-block: 18px;
  border-bottom: 2px solid var(--color-divider);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 15px;
}
.nav a { color: var(--color-text); text-decoration: none; }
.nav a:hover { color: var(--color-accent); }
.nav-brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 800; font-size: 17px; margin-right: auto; letter-spacing: -.01em; }
.nav-brand svg { flex-shrink: 0; }
.brand-mark { flex-shrink: 0; }

/* .table */
.table { border-collapse: collapse; width: 100%; }
.table th {
  font-family: var(--font-heading);
  font-size: 13px;
  line-height: 14px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  text-align: left;
  color: color-mix(in srgb, var(--color-text) 70%, transparent);
  padding: 14px 20px 14px 0;
  border-bottom: 2px solid var(--color-divider);
}
.table td {
  padding: 24px 20px 24px 0;
  border-bottom: 2px solid var(--color-divider);
  vertical-align: middle;
}

/* forms */
.field { display: flex; flex-direction: column; gap: 8px; }
.field label {
  font-family: var(--font-heading);
  font-size: 13px;
  line-height: 14px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--color-text) 70%, transparent);
}
.input {
  font: inherit;
  color: var(--color-text);
  background: var(--color-surface);
  border: 2px solid var(--color-text);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  width: 100%;
  box-sizing: border-box;
}
.input::placeholder { color: color-mix(in srgb, var(--color-text) 40%, transparent); }
.input:focus { outline: 2px solid var(--color-accent); outline-offset: 2px; }

/* rules & imagery */
.hr { height: 2px; border: 0; margin: 0; background: var(--color-divider); }
.grayscale { filter: grayscale(1); }

/* cards (surface) */
.card { background: var(--color-surface); border: 2px solid var(--color-divider); padding: var(--space-4); }
.card-kicker {
  font-size: 13px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--color-accent-700); font-weight: 700;
}
.card-title { font-family: var(--font-heading); font-weight: var(--font-heading-weight); }
.elev-sm { box-shadow: var(--shadow-sm); }
.elev-md { box-shadow: var(--shadow-md); }
.elev-lg { box-shadow: var(--shadow-lg); }


/* ============ DARK THEME ============ */
[data-theme="dark"] {
  --color-bg: #1a1918;
  --color-surface: #232120;
  --color-text: #f3f2f2;
  --color-divider: #d8d6d5;
  --color-accent-700: #f16e55;   /* small accent text / links, readable on dark */
  --color-accent-100: #2a1310;   /* tinted red fills on dark */
  --color-neutral-100: #2a2826;
  --color-neutral-300: #3a3735;
}
[data-theme="dark"] ::selection { background: var(--color-accent-400); color: var(--color-bg); }
[data-theme="dark"] .btn-primary,
[data-theme="dark"] .btn-primary:hover { color: #f7f6f5; }