/* shared styles for wonsanglee.com */

:root {
  --paper: #F6F1E8;
  --paper-tint: #EFE9DD;
  --ink: #1B1815;
  --ink-soft: #2D2823;
  --glacial: #2A4858;
  --glacial-soft: #5A7382;
  --rust: #A8472A;
  --hairline: #D8D0BF;
  --whisper: #8A8378;
  --serif-display: 'Fraunces', Georgia, serif;
  --serif-body: 'Newsreader', 'Times New Roman', serif;
  --serif-ko: 'Gowun Batang', 'Noto Serif KR', serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif-body);
  font-size: 18px;
  line-height: 1.65;
  font-weight: 400;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background-image:
    radial-gradient(circle at 25% 30%, rgba(168, 71, 42, 0.015) 0%, transparent 50%),
    radial-gradient(circle at 75% 70%, rgba(42, 72, 88, 0.02) 0%, transparent 50%);
  mix-blend-mode: multiply;
}

main { flex: 1; }

/* Navigation */
nav.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 22px 48px;
  display: flex; justify-content: space-between; align-items: center;
  background: rgba(246, 241, 232, 0.88);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s ease;
}
nav.site-nav.scrolled { border-bottom-color: var(--hairline); }

.monogram {
  font-family: var(--serif-display);
  font-weight: 500; font-style: italic;
  font-size: 22px; letter-spacing: -0.01em;
  color: var(--ink); text-decoration: none;
  font-variation-settings: "opsz" 144;
}

nav.site-nav ul { list-style: none; display: flex; gap: 28px; align-items: center; }
nav.site-nav ul a {
  font-family: var(--serif-display);
  font-size: 12px; font-weight: 400;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-soft); text-decoration: none;
  transition: color 0.2s ease; position: relative;
}
nav.site-nav ul a:hover { color: var(--rust); }
nav.site-nav ul a.active { color: var(--rust); }
nav.site-nav ul a::after {
  content: ''; position: absolute;
  bottom: -6px; left: 0; width: 0; height: 1px;
  background: var(--rust); transition: width 0.3s ease;
}
nav.site-nav ul a:hover::after,
nav.site-nav ul a.active::after { width: 100%; }

/* Hamburger menu button - hidden on desktop, shown on narrow screens */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  width: 40px;
  height: 40px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--ink);
  transition: all 0.3s ease;
}
.nav-toggle.open span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* Thwaites page: hamburger lines on dark bg */
body.dark-page .nav-toggle span { background: var(--paper); }

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 48px;
  position: relative;
  z-index: 2;
}

/* Common page header */
.page-header {
  padding: 180px 0 80px;
}
.page-header .eyebrow {
  font-family: var(--serif-display);
  font-size: 12px; font-weight: 500;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--rust);
  margin-bottom: 32px;
  display: flex; align-items: baseline; gap: 16px;
}
.page-header .eyebrow .num {
  font-style: italic; font-weight: 400;
  color: var(--whisper); letter-spacing: 0.05em;
}
.page-header h1 {
  font-family: var(--serif-display);
  font-size: clamp(40px, 5.5vw, 72px);
  font-weight: 300; line-height: 1.05;
  letter-spacing: -0.025em;
  color: var(--ink);
  max-width: 900px;
  font-variation-settings: "opsz" 96;
}
.page-header h1 em {
  font-style: italic; color: var(--glacial);
}

/* Page body content sections */
.page-body { padding-bottom: 130px; }

/* Footer */
footer {
  padding: 32px 48px;
  border-top: 1px solid var(--hairline);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--serif-display);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--whisper);
}
footer a {
  color: var(--whisper);
  text-decoration: none;
  transition: color 0.2s ease;
}
footer a:hover { color: var(--rust); }

/* Responsive */
@media (max-width: 1100px) {
  nav.site-nav ul { gap: 22px; }
  nav.site-nav ul a { font-size: 11.5px; letter-spacing: 0.1em; }
}

@media (max-width: 920px) {
  nav.site-nav { padding: 18px 32px; }
  nav.site-nav ul { gap: 18px; }
  nav.site-nav ul a { font-size: 11px; letter-spacing: 0.08em; }
  .monogram { font-size: 20px; }
}

@media (max-width: 768px) {
  nav.site-nav { padding: 16px 24px; }
  nav.site-nav ul {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    max-width: 320px;
    background: var(--paper);
    border-left: 1px solid var(--hairline);
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    gap: 18px;
    padding: 36px 32px 32px;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 99;
    overflow-y: auto;
  }
  nav.site-nav ul.open { transform: translateX(0); }
  nav.site-nav ul a {
    font-size: 13px;
    letter-spacing: 0.14em;
  }
  .nav-toggle { display: flex; z-index: 101; position: relative; }

  /* Dark page mobile menu */
  body.dark-page nav.site-nav ul {
    background: var(--ink);
    border-left-color: rgba(246, 241, 232, 0.18);
  }

  .wrap { padding: 0 24px; }
  .page-header { padding: 120px 0 60px; }
  .page-body { padding-bottom: 80px; }
  footer { padding: 24px; flex-direction: column; gap: 12px; }
}