/* ============================================
   曾語晴 — 一土一器 Ceramic Studio
   Palette: Warm clay · Earth brown · Cream
   ============================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

:root {
  --bg:       #FAF7F2;
  --surface:  #F2EDE4;
  --ink:      #2D2218;
  --ink-2:    #6B5448;
  --ink-3:    #A89080;
  --accent:   #8B6040;
  --accent-lt:#B8865C;
  --border:   rgba(45,34,24,0.10);
  --serif:    'Cormorant Garamond', Georgia, serif;
  --sans:     'Inter', 'Noto Sans TC', system-ui, sans-serif;
  --ease:     cubic-bezier(0.16,1,0.3,1);
}

body { font-family: var(--sans); background: var(--bg); color: var(--ink); overflow-x: hidden; font-size: 16px; line-height: 1.7; }
img  { display: block; max-width: 100%; }
a    { color: inherit; text-decoration: none; }

/* ── NAV ── */
#nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 5vw;
  transition: background 0.4s, padding 0.3s, border-color 0.4s;
  border-bottom: 1px solid transparent;
}
#nav.scrolled {
  background: rgba(250,249,246,0.96);
  backdrop-filter: blur(16px);
  padding: 14px 5vw;
  border-bottom-color: var(--border);
}
.nav-name {
  font-family: var(--serif); font-size: 1.15rem; font-weight: 600; color: var(--ink);
  letter-spacing: 0.02em;
}
.nav-name span { color: var(--ink-3); margin-left: 6px; font-weight: 400; font-size: 0.92rem; }
.nav-links { display: flex; align-items: center; gap: 8px; list-style: none; }
.nav-links li a {
  font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; font-weight: 500;
  color: var(--ink-2); padding: 6px 14px; border-radius: 99px;
  transition: color 0.15s, background 0.15s;
}
.nav-links li a:hover { color: var(--ink); background: var(--surface); }
.nav-contact-btn {
  border: 1px solid var(--border) !important;
  color: var(--ink) !important;
}
.nav-contact-btn:hover { background: var(--ink) !important; color: var(--bg) !important; }

.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  width: 38px; height: 38px; align-items: center; justify-content: center;
  background: none; border: 1px solid var(--border); border-radius: 6px; cursor: pointer;
}
.nav-toggle span { display: block; width: 16px; height: 1px; background: var(--ink); transition: 0.3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ── MOBILE MENU ── */
.mobile-menu {
  position: fixed; inset: 0; z-index: 200;
  background: var(--bg); display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 32px;
  transform: translateX(100%); transition: transform 0.4s var(--ease);
}
.mobile-menu.open { transform: translateX(0); }
.mobile-close {
  position: absolute; top: 24px; right: 5vw;
  background: none; border: 1px solid var(--border); border-radius: 6px;
  width: 40px; height: 40px; font-size: 1rem; cursor: pointer; color: var(--ink);
}
.m-link {
  font-family: var(--serif); font-size: 2rem; font-weight: 400;
  color: var(--ink); letter-spacing: 0.04em; transition: color 0.2s;
}
.m-link:hover { color: var(--accent); }

/* ── HERO ── */
#hero {
  min-height: 100svh; display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center; padding: 120px 5vw 80px;
  gap: 60px;
}
.hero-eyebrow {
  font-size: 0.74rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 20px; font-weight: 600;
}
.hero-title {
  font-family: var(--serif);
  font-size: clamp(48px, 6.5vw, 92px);
  font-weight: 500; line-height: 1.05;
  letter-spacing: -0.015em; color: var(--ink);
  margin-bottom: 24px;
}
.hero-title em { font-style: italic; color: var(--ink-2); font-weight: 400; }
.hero-sub {
  font-size: clamp(15px, 1.6vw, 17px); color: var(--ink-2); font-weight: 400;
  line-height: 1.85; margin-bottom: 28px; max-width: 420px;
}
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 36px; }
.hero-tags span {
  padding: 5px 16px; border: 1px solid var(--border); border-radius: 99px;
  font-size: 0.78rem; color: var(--ink-2); letter-spacing: 0.04em; font-weight: 500;
}
.hero-cta {
  display: inline-block;
  font-size: 0.82rem; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 600;
  color: var(--ink); border-bottom: 1.5px solid var(--ink);
  padding-bottom: 4px;
  transition: color 0.2s, border-color 0.2s;
}
.hero-cta:hover { color: var(--accent); border-color: var(--accent); }

.hero-photo-wrap { position: relative; }
.hero-photo {
  width: 100%; aspect-ratio: 3/4; object-fit: cover; object-position: top;
  border-radius: 4px;
  filter: sepia(8%) contrast(1.04);
}
.hero-photo-caption {
  position: absolute; bottom: -24px; right: 0;
  font-size: 0.7rem; color: var(--ink-3); letter-spacing: 0.1em;
}

/* ── MARQUEE ── */
.marquee-wrap {
  overflow: hidden; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  padding: 14px 0; background: var(--surface); margin-top: 20px;
}
.marquee-track {
  display: flex; gap: 32px; white-space: nowrap;
  animation: marquee 28s linear infinite;
  font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-3);
}
.marquee-track span { flex-shrink: 0; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ── PORTFOLIO ── */
#portfolio { padding: 100px 5vw; }
.section-head {
  display: flex; align-items: baseline; justify-content: space-between;
  flex-wrap: wrap; gap: 24px; margin-bottom: 56px;
  border-bottom: 1px solid var(--border); padding-bottom: 28px;
}
.section-title-serif {
  font-family: var(--serif);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 500; color: var(--ink);
}
.section-title-serif em { font-style: italic; color: var(--ink-3); font-size: 0.78em; margin-left: 8px; font-weight: 400; }

.filter-bar { display: flex; gap: 6px; flex-wrap: wrap; }
.filter-btn {
  padding: 7px 18px; border-radius: 99px;
  border: 1px solid var(--border); background: none;
  font-size: 0.8rem; letter-spacing: 0.04em; font-weight: 500; color: var(--ink-2);
  cursor: pointer; transition: all 0.2s; font-family: var(--sans);
}
.filter-btn:hover { border-color: var(--ink); color: var(--ink); }
.filter-btn.active { background: var(--ink); color: var(--bg); border-color: var(--ink); }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 280px;
  gap: 12px;
}
.gallery-item--tall { grid-row: span 2; }
.gallery-item--wide { grid-column: span 2; }

.gallery-item { overflow: hidden; border-radius: 3px; cursor: pointer; }
.gallery-img-wrap { position: relative; width: 100%; height: 100%; overflow: hidden; }
.gallery-img-wrap img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.7s var(--ease), filter 0.4s;
  filter: saturate(0.9);
}
.gallery-item:hover .gallery-img-wrap img { transform: scale(1.06); filter: saturate(1.05); }
.gallery-overlay {
  position: absolute; inset: 0;
  background: rgba(26,24,18,0); transition: background 0.4s;
  display: flex; align-items: flex-end; padding: 20px;
}
.gallery-item:hover .gallery-overlay { background: rgba(26,24,18,0.42); }
.gallery-overlay-content { opacity: 0; transform: translateY(8px); transition: opacity 0.3s, transform 0.3s; }
.gallery-item:hover .gallery-overlay-content { opacity: 1; transform: translateY(0); }
.gallery-overlay-content h4 {
  font-family: var(--serif); font-size: 1.35rem; font-weight: 600;
  color: #fff; letter-spacing: 0.04em;
}
.gallery-overlay-content p { font-size: 0.8rem; color: rgba(255,255,255,0.75); margin-top: 4px; font-weight: 400; }

.gallery-item.hidden { display: none; }

/* ── ABOUT ── */
#about { padding: 100px 5vw; background: var(--surface); }
.about-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; max-width: 1200px; margin: 0 auto; }
.about-img-col { position: relative; }
.about-img { width: 100%; aspect-ratio: 4/5; object-fit: cover; border-radius: 3px; filter: sepia(6%) contrast(1.02); }
.about-img-note { margin-top: 12px; font-size: 0.72rem; color: var(--ink-3); letter-spacing: 0.06em; }
.about-eyebrow { font-size: 0.72rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--accent); margin-bottom: 16px; font-weight: 600; }
.about-title {
  font-family: var(--serif);
  font-size: clamp(32px, 3.5vw, 48px);
  font-weight: 500; line-height: 1.2; color: var(--ink); margin-bottom: 28px;
}
.about-title em { font-style: italic; font-weight: 400; }
.about-body { font-size: clamp(15px, 1.5vw, 16px); color: var(--ink-2); line-height: 1.9; margin-bottom: 18px; font-weight: 400; }
.about-stats { display: flex; gap: 32px; margin-top: 36px; padding-top: 32px; border-top: 1px solid var(--border); }
.astat { display: flex; flex-direction: column; gap: 4px; }
.astat-num { font-family: var(--serif); font-size: 2.2rem; font-weight: 500; color: var(--ink); }
.astat-label { font-size: 0.75rem; color: var(--ink-3); letter-spacing: 0.08em; text-transform: uppercase; font-weight: 500; }

/* ── COMMISSION ── */
#commission { padding: 100px 5vw; max-width: 1200px; margin: 0 auto; }
.comm-header { margin-bottom: 60px; }
.comm-header h2 { margin-top: 12px; }
.comm-sub { font-size: 15px; color: var(--ink-2); margin-top: 12px; line-height: 1.8; }
.comm-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; border: 1px solid var(--border); }
.comm-card {
  padding: 44px 40px; border-right: 1px solid var(--border); border-bottom: 1px solid var(--border);
  transition: background 0.25s;
}
.comm-card:nth-child(even) { border-right: none; }
.comm-card:nth-child(3), .comm-card:nth-child(4) { border-bottom: none; }
.comm-card:hover { background: var(--surface); }
.comm-icon { font-size: 1.2rem; color: var(--accent); margin-bottom: 16px; }
.comm-card h3 { font-family: var(--serif); font-size: 1.35rem; font-weight: 600; color: var(--ink); margin-bottom: 12px; }
.comm-card p { font-size: 0.9rem; color: var(--ink-2); line-height: 1.82; margin-bottom: 20px; font-weight: 400; }
.comm-tag {
  display: inline-block; padding: 5px 16px; border: 1px solid var(--border);
  border-radius: 99px; font-size: 0.78rem; color: var(--accent); letter-spacing: 0.04em; font-weight: 600;
}

/* ── CONTACT ── */
#contact { padding: 100px 5vw; background: var(--ink); }
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; max-width: 1200px; margin: 0 auto; }
#contact .about-eyebrow { color: var(--accent-lt); }
.contact-title {
  font-family: var(--serif);
  font-size: clamp(36px, 4.5vw, 60px);
  font-weight: 500; line-height: 1.1; color: #FAF9F6; margin-bottom: 20px; margin-top: 12px;
}
.contact-title em { font-style: italic; color: var(--accent-lt); font-weight: 400; }
.contact-sub { font-size: 16px; color: rgba(250,249,246,0.72); line-height: 1.85; margin-bottom: 32px; font-weight: 400; }
.contact-links { display: flex; flex-direction: column; gap: 14px; }
.contact-link {
  font-size: 0.9rem; color: rgba(250,249,246,0.85); letter-spacing: 0.03em; font-weight: 500;
  display: flex; align-items: center; gap: 10px;
  padding-bottom: 14px; border-bottom: 1px solid rgba(255,255,255,0.12);
  transition: color 0.2s;
}
.contact-link:hover { color: var(--accent-lt); }
.contact-right { position: relative; }
.contact-artwork { width: 100%; aspect-ratio: 3/4; object-fit: cover; border-radius: 3px; opacity: 0.85; filter: sepia(20%); }
.contact-artwork-label { margin-top: 12px; font-size: 0.7rem; color: rgba(250,249,246,0.4); letter-spacing: 0.1em; font-style: italic; }

/* ── FOOTER ── */
#footer {
  background: var(--ink); border-top: 1px solid rgba(255,255,255,0.08);
  padding: 28px 5vw; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px;
}
.footer-name { font-family: var(--serif); font-size: 0.9rem; color: rgba(250,249,246,0.8); font-style: italic; }
.footer-copy { font-size: 0.72rem; color: rgba(250,249,246,0.35); letter-spacing: 0.04em; }

/* ── SCROLL REVEAL ── */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  #hero { grid-template-columns: 1fr; gap: 40px; padding-top: 100px; }
  .hero-photo-wrap { order: -1; }
  .hero-photo { aspect-ratio: 4/3; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 220px; }
  .gallery-item--wide { grid-column: span 1; }
  .about-wrap, .contact-wrap { grid-template-columns: 1fr; gap: 48px; }
  .comm-grid { grid-template-columns: 1fr; }
  .comm-card { border-right: none; border-bottom: 1px solid var(--border); }
  .comm-card:last-child { border-bottom: none; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .gallery-grid { grid-template-columns: 1fr; grid-auto-rows: 240px; }
  .gallery-item--tall { grid-row: span 1; }
  .section-head { flex-direction: column; align-items: flex-start; }
}