/* ── CSS Custom Properties ── */
:root {
  --bg-primary: #F7F3EE;
  --bg-secondary: #EDE6DD;
  --bg-dark: #1A1A1A;
  --accent-terracotta: #C06C4F;
  --accent-terracotta-dark: #A85A40;
  --accent-terracotta-darker: #8F4A30;
  --accent-sage: #8A9B6E;
  --accent-sage-dark: #6B7E52;
  --accent-gold: #D4A24A;
  --text-primary: #1A1A1A;
  --text-secondary: #6B6560;
  --text-light: #F7F3EE;
  --border: rgba(26, 26, 26, 0.08);

  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'Satoshi', system-ui, sans-serif;

  --section-pad: clamp(80px, 10vh, 140px);
  --max-narrow: 640px;
  --max-medium: 880px;
  --max-wide: 1200px;

  --transition-fast: 0.2s ease;
  --transition-medium: 0.4s ease;
  --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ── Reset ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
}

@media (max-width: 640px) {
  body { font-size: 1rem; }
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

/* ── Utilities ── */
.container {
  width: 100%;
  max-width: var(--max-wide);
  margin-inline: auto;
  padding-inline: 24px;
}

.container--narrow { max-width: var(--max-narrow); }
.container--medium { max-width: var(--max-medium); }

.section {
  padding-block: var(--section-pad);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ── Site Header ── */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding-block: 20px;
  transition: background var(--transition-medium), backdrop-filter var(--transition-medium);
}
.site-header.is-scrolled {
  background: rgba(247, 243, 238, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.site-header__logo {
  color: var(--text-primary);
  flex-shrink: 0;
}
.site-header__nav {
  display: flex;
  gap: 32px;
}
.site-header__link {
  position: relative;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, system-ui, sans-serif;
  font-size: 0.9375rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  line-height: 1.2;
  color: var(--text-primary);
  padding: 12px 8px;
}
.site-header__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1.5px;
  background: var(--accent-terracotta);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}
.site-header__link:hover::after,
.site-header__link.is-active::after {
  transform: scaleX(1);
}
.site-header__social {
  display: flex;
  gap: 16px;
  color: var(--text-primary);
}
.site-header__social a {
  display: flex;
  padding: 12px;
}
.site-header__menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.site-header__menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

@media (max-width: 1024px) {
  .site-header__nav { display: none; }
  .site-header__menu-toggle { display: flex; }
}

/* ── Site Footer ── */
.site-footer {
  background: var(--bg-dark);
  color: var(--text-light);
  padding-block: 64px 32px;
}
.site-footer__inner {
  display: grid;
  gap: 40px;
}
.site-footer__brand p {
  margin-top: 12px;
  font-size: 0.9375rem;
  color: rgba(247, 243, 238, 0.6);
}
.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.site-footer__nav a {
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: rgba(247, 243, 238, 0.7);
  transition: color var(--transition-fast);
  padding: 12px 0;
}
.site-footer__nav a:hover { color: var(--text-light); }
.site-footer__social {
  display: flex;
  gap: 16px;
  color: rgba(247, 243, 238, 0.7);
}
.site-footer__copy {
  font-size: 0.8125rem;
  color: rgba(247, 243, 238, 0.4);
  margin-top: 24px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .site-header,
  .site-header__link::after,
  .site-header__menu-toggle span,
  .site-footer__nav a {
    transition: none !important;
  }
}

/* ── Mobile Menu Overlay ── */
@media (max-width: 1024px) {
  .site-header__nav {
    display: none;
    position: fixed;
    inset: 0;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
    background: var(--bg-primary);
    z-index: 99;
  }
  .menu-open .site-header__nav {
    display: flex;
  }
  .site-header__nav a {
    font-size: 1.5rem;
  }
  .site-header__menu-toggle {
    display: flex;
    z-index: 101;
  }
  .menu-open .site-header__menu-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .menu-open .site-header__menu-toggle span:nth-child(2) {
    opacity: 0;
  }
  .menu-open .site-header__menu-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

/* ── Reduced Motion helper ── */
.reduced-motion * {
  animation: none !important;
  transition: none !important;
}