/* ============================================================
   Sara Kafetegia — base.css
   Tokens · reset · typography · layout primitives
   Brand: deep espresso/oxblood + Edison amber. Warmth via brand
   + photos, NOT a cream near-white body. (see DESIGN.md)
   ============================================================ */

@import url('../fonts/fonts.css');

/* ---------- Design tokens ---------- */
:root {
  /* Brand core — espresso / oxblood (from logo) */
  --espresso:        oklch(0.30 0.072 35);
  --espresso-deep:   oklch(0.22 0.060 33);
  --espresso-ink:    oklch(0.26 0.066 34);
  --espresso-soft:   oklch(0.42 0.075 38);

  /* Accent — Edison amber / honey / crema */
  --amber:           oklch(0.74 0.135 66);
  --amber-deep:      oklch(0.64 0.140 55);   /* large elements, borders, icons */
  --honey-text:      oklch(0.48 0.12 52);    /* amber-toned SMALL text — AA on light (6.5:1) */
  --crema:           oklch(0.88 0.060 78);

  /* Surfaces */
  --surface:         oklch(0.985 0.006 70);
  --surface-raised:  oklch(1.000 0.000 0);
  --surface-sand:    oklch(0.945 0.012 72);
  --surface-dark:    var(--espresso);
  --surface-darker:  var(--espresso-deep);

  /* Ink / text */
  --ink:             oklch(0.24 0.030 40);
  --ink-muted:       oklch(0.44 0.028 42);
  --on-dark:         oklch(0.96 0.012 78);
  --on-dark-muted:   oklch(0.82 0.020 72);

  /* Lines / supporting */
  --line:            oklch(0.88 0.012 60);
  --line-dark:       oklch(0.40 0.040 38);
  --leaf:            oklch(0.52 0.070 140);
  --destructive:     oklch(0.55 0.180 27);

  /* Fonts */
  --font-display: 'Bricolage Grotesque', 'Segoe UI', system-ui, sans-serif;
  --font-body:    'Petrona', Georgia, 'Times New Roman', serif;

  /* Fluid type scale (ratio ≥1.25, hero ≤6rem) */
  --step--1: clamp(0.83rem, 0.78rem + 0.25vw, 0.95rem);
  --step-0:  clamp(1.06rem, 1.00rem + 0.30vw, 1.20rem);
  --step-1:  clamp(1.30rem, 1.18rem + 0.60vw, 1.62rem);
  --step-2:  clamp(1.62rem, 1.40rem + 1.05vw, 2.30rem);
  --step-3:  clamp(2.05rem, 1.65rem + 1.90vw, 3.30rem);
  --step-4:  clamp(2.55rem, 1.90rem + 3.10vw, 4.60rem);
  --step-5:  clamp(3.10rem, 2.10rem + 4.70vw, 5.80rem);

  /* Spacing (8pt rhythm, fluid where useful) */
  --sp-1: 0.25rem;  --sp-2: 0.5rem;  --sp-3: 0.75rem; --sp-4: 1rem;
  --sp-5: 1.5rem;   --sp-6: 2rem;    --sp-7: 3rem;    --sp-8: 4rem;
  --sp-9: 6rem;     --sp-10: 8rem;
  --section-y: clamp(3.5rem, 2.5rem + 5vw, 7rem);
  --container: min(92vw, 1200px);
  --container-narrow: min(92vw, 760px);

  /* Radii */
  --r-sm: 8px; --r-md: 14px; --r-lg: 22px; --r-pill: 999px;

  /* Shadows (warm) */
  --shadow-sm: 0 2px 8px rgba(40,22,16,.08);
  --shadow-md: 0 6px 24px rgba(40,22,16,.10);
  --shadow-lg: 0 18px 48px rgba(40,22,16,.16);

  /* Motion */
  --ease-out: cubic-bezier(.16,1,.3,1);         /* expo-ish */
  --ease-out-quart: cubic-bezier(.25,1,.5,1);
  --dur-1: 160ms; --dur-2: 240ms; --dur-3: 420ms; --dur-4: 680ms;

  /* Z-index scale */
  --z-base: 0; --z-raised: 10; --z-nav: 100; --z-dropdown: 200;
  --z-backdrop: 800; --z-modal: 900; --z-toast: 1000; --z-loader: 1100;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  color-scheme: light;
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* WIG: intentional touch behaviour for interactive controls */
a, button, .btn, .filter-btn, summary, .nav-toggle, .menu-close,
.gallery figure, .map-cover, input, textarea, select, label {
  touch-action: manipulation;
  -webkit-tap-highlight-color: color-mix(in oklch, var(--amber) 30%, transparent);
}

body {
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.65;
  color: var(--ink);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-synthesis: none;
  overflow-x: clip;
}

img, picture, video, canvas, svg { display: block; max-width: 100%; }
img, video { height: auto; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
a { color: inherit; text-decoration: none; }
ul[role="list"], ol[role="list"] { list-style: none; padding: 0; }
:focus-visible { outline: 3px solid var(--amber-deep); outline-offset: 3px; border-radius: 4px; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 650;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--espresso-ink);
  text-wrap: balance;
}
h1 { font-size: var(--step-4); }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-2); letter-spacing: -0.015em; }
h4 { font-size: var(--step-1); letter-spacing: -0.01em; }
p { text-wrap: pretty; max-width: 68ch; }
strong, b { font-weight: 650; }
em { font-style: italic; }

.display {
  font-family: var(--font-display);
  font-size: var(--step-5);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.03em;
}
.lead { font-size: var(--step-1); color: var(--ink-muted); line-height: 1.55; }
.eyebrow {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--step--1);
  letter-spacing: 0.02em;
  color: var(--honey-text);
  display: inline-flex; align-items: center; gap: .5rem;
}
.script-mark { font-family: var(--font-body); font-style: italic; }

/* ---------- Layout primitives ---------- */
.container { width: var(--container); margin-inline: auto; }
.container-narrow { width: var(--container-narrow); margin-inline: auto; }
.section { padding-block: var(--section-y); }
.section-dark { background: var(--surface-dark); color: var(--on-dark); position: relative; }
.section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4 { color: var(--on-dark); }
.section-sand { background: var(--surface-sand); }

.stack > * + * { margin-block-start: var(--flow, 1.25rem); }
.center-text { text-align: center; }
.measure { max-width: 60ch; }

/* Symmetric responsive grid, no orphaned rows (counts tuned per use) */
.grid { display: grid; gap: clamp(1rem, 2vw, 1.75rem); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr)); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

/* Visually hidden (a11y) */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 1rem; top: -100%; z-index: var(--z-toast);
  background: var(--espresso); color: var(--on-dark);
  padding: .75rem 1.25rem; border-radius: var(--r-sm); font-family: var(--font-display);
  transition: top var(--dur-2) var(--ease-out);
}
.skip-link:focus { top: 1rem; }

/* Grain texture for dark bands */
.grain::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  opacity: .05; mix-blend-mode: overlay; z-index: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.section-dark > .container { position: relative; z-index: 1; }