/* ============================================================
   Atelier Linnea — Base
   Reset, typography, layout primitives, a11y fundamentals.
   ============================================================ */

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
  overflow-x: clip;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--ink);
  background-color: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

img, picture, video, svg { display: block; max-width: 100%; }
img { height: auto; }

/* Sprite icons — base size; scale per context */
.icon {
  display: inline-block;
  width: 20px;
  height: 20px;
  flex: none;
  vertical-align: middle;
}

input, button, textarea, select { font: inherit; color: inherit; }

button { background: none; border: 0; cursor: pointer; padding: 0; }

ul, ol { padding: 0; list-style: none; }

a { color: inherit; text-decoration: none; }

blockquote, figure { margin: 0; }

::selection { background: var(--accent); color: var(--paper); }

/* ---- Focus — visible, keyboard-first ---- */
:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: 4px;
}

/* ---- Typography ---- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 430;
  line-height: var(--lh-heading);
  letter-spacing: -0.015em;
  text-wrap: balance;
}

h1 { font-size: var(--fs-display); line-height: var(--lh-display); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

p { max-width: 65ch; }

em, .italic { font-style: italic; }

.display em { color: var(--accent); }

strong { font-weight: 650; }

.serif { font-family: var(--font-display); }

/* ---- Eyebrow label ---- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: var(--fs-eyebrow);
  font-weight: 700;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--accent);
}

.eyebrow::before {
  content: '';
  width: 2.1rem;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
}

.eyebrow--center { justify-content: center; }
.eyebrow--center::after { content: ''; width: 2.1rem; height: 1px; background: currentColor; opacity: 0.6; }

[data-theme='dark'] .eyebrow { color: var(--accent-soft); }

/* ---- Layout primitives ---- */
.container {
  width: min(var(--container), 100% - 2 * var(--gutter));
  margin-inline: auto;
}

.container--narrow { width: min(var(--narrow), 100% - 2 * var(--gutter)); }

.section { padding-block: var(--sec); }
.section--sm { padding-block: var(--sec-sm); }
.section--alt { background: var(--paper-2); }
.section--dark { background: var(--dark); color: var(--ink); }

/* Two-column editorial split */
.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

@media (min-width: 900px) {
  .split { grid-template-columns: 1.05fr 0.95fr; }
  .split--wide { grid-template-columns: 1.15fr 0.85fr; }
}

/* ---- Section heading block ---- */
.section-head {
  display: grid;
  gap: 1.25rem;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-head p:not(.eyebrow) {
  color: var(--muted);
  font-size: var(--fs-lead);
  max-width: 46ch;
}

@media (min-width: 900px) {
  .section-head { grid-template-columns: 1.2fr 1fr; align-items: end; }
  .section-head .section-head-actions { grid-column: 1 / -1; }
}

/* ---- Links ---- */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 650;
  font-size: var(--fs-sm);
  letter-spacing: var(--tracking-mid);
  position: relative;
  padding-bottom: 3px;
}

.link-arrow::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: currentColor;
  transform-origin: left;
  transition: transform var(--dur-s) var(--ease);
}

.link-arrow .icon { transition: transform var(--dur-s) var(--ease); }

.link-arrow:hover::after { transform: scaleX(0.35); }
.link-arrow:hover .icon { transform: translate(3px, -3px); }

/* ---- Skip link (a11y) ---- */
.skip-link {
  position: fixed;
  top: -100px; left: 1rem;
  z-index: 200;
  background: var(--ink);
  color: var(--paper);
  padding: 0.8rem 1.4rem;
  border-radius: var(--r-s);
  font-weight: 650;
  transition: top var(--dur-s) var(--ease);
}

.skip-link:focus { top: 1rem; }

/* ---- Reduced motion — global ---- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---- Print ---- */
@media print {
  .site-header, .site-footer, .nav-toggle, .back-to-top { display: none !important; }
  body { background: #fff; }
}