/* ==========================================================
   Stella Fyti Heights — base.css
   Design tokens, reset and shared components (used by every section)
   ========================================================== */

:root {
  /* Colors */
  --color-bg: #faf6f1;          /* warm off-white */
  --color-surface: #ffffff;
  --color-ink: #1f1b18;         /* near-black, warm */
  --color-ink-soft: #5b534c;
  --color-line: #e6dfd6;
  --color-accent: #a9502f;      /* terracotta (5.4:1 on white) */
  --color-accent-dark: #8f4126;

  /* Typography — system stacks: zero font download, zero layout shift */
  --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  /* Layout */
  --gutter: clamp(1.25rem, 5vw, 4rem);
  --max-width: 75rem;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

/* Accessibility helpers */
.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  padding: 0.75rem 1.25rem;
  background: var(--color-ink);
  color: #fff;
  text-decoration: none;
  border-radius: 2px;
}

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

/* Primary button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.9rem 2.5rem;
  font: 600 0.875rem/1 var(--font-sans);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  color: #fff;
  background: var(--color-accent);
  border: 1px solid var(--color-accent);
  border-radius: 2px;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.btn:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  transform: translateY(-1px);
}

.btn:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 3px;
  box-shadow: 0 0 0 6px var(--color-accent-dark);
}

/* Outline button (for light backgrounds) */
.btn--outline {
  color: var(--color-accent);
  background: transparent;
}

.btn--outline:hover {
  color: #fff;
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.btn--outline:focus-visible {
  outline: 3px solid var(--color-accent-dark);
  outline-offset: 3px;
  box-shadow: none;
}

@media (prefers-reduced-motion: reduce) {
  .btn {
    transition: none;
  }
  .btn:hover {
    transform: none;
  }
}