/* =============================================
   Harmony Culture — style.css
   Cultural platform aesthetic: refined, spacious, typographic
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;1,300;1,400&family=Noto+Serif+TC:wght@300;400;500&family=Noto+Sans+TC:wght@300;400&display=swap');

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

:root {
  --white: #ffffff;
  --off-white: #f8f7f5;
  --light-gray: #eeece8;
  --mid-gray: #c8c4bc;
  --text-light: #9a9690;
  --text-body: #4a4744;
  --text-dark: #1e1c1a;
  --accent: #b08a5e;
  --accent-light: #c9a87a;

  --font-serif-en: 'Cormorant Garamond', 'Georgia', serif;
  --font-serif-zh: 'Noto Serif TC', 'Georgia', serif;
  --font-sans-zh: 'Noto Sans TC', sans-serif;

  --max-width: 860px;
  --nav-height: 64px;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--white);
  color: var(--text-body);
  font-family: var(--font-sans-zh);
  font-weight: 300;
  line-height: 1.8;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Navigation ── */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--light-gray);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
}

.nav-logo {
  font-family: var(--font-serif-en);
  font-size: 1.05rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--text-dark);
  text-decoration: none;
}

.nav-logo span {
  font-size: 0.7rem;
  font-family: var(--font-sans-zh);
  font-weight: 300;
  color: var(--text-light);
  margin-left: 10px;
  letter-spacing: 0.12em;
}

.nav-links {
  display: flex;
  gap: 40px;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-sans-zh);
  font-size: 0.78rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  color: var(--text-body);
  text-decoration: none;
  transition: color 0.2s ease;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.25s ease;
}

.nav-links a:hover {
  color: var(--text-dark);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a.active {
  color: var(--text-dark);
}

/* ── Mobile Nav Toggle ── */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--text-dark);
  transition: transform 0.25s, opacity 0.25s;
}

/* ── Main Content ── */
main {
  flex: 1;
  padding-top: var(--nav-height);
}

/* ── Page Hero ── */
.page-hero {
  padding: 96px 48px 72px;
  max-width: var(--max-width);
  margin: 0 auto;
  border-bottom: 1px solid var(--light-gray);
}

.page-hero .eyebrow {
  font-family: var(--font-serif-en);
  font-size: 0.8rem;
  font-weight: 300;
  letter-spacing: 0.22em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 20px;
}

.page-hero h1 {
  font-family: var(--font-serif-zh);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 300;
  color: var(--text-dark);
  line-height: 1.3;
  margin-bottom: 12px;
  letter-spacing: 0.04em;
}

.page-hero .en-title {
  font-family: var(--font-serif-en);
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  font-weight: 300;
  font-style: italic;
  color: var(--text-light);
  letter-spacing: 0.06em;
}

.page-hero .hero-desc {
  margin-top: 28px;
  font-size: 0.95rem;
  line-height: 2;
  color: var(--text-body);
  max-width: 600px;
}

/* ── Index Hero ── */
.index-hero {
  padding: 120px 48px 96px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.index-hero .tagline-zh {
  font-family: var(--font-serif-zh);
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 300;
  color: var(--text-dark);
  letter-spacing: 0.06em;
  line-height: 1.2;
  margin-bottom: 10px;
}

.index-hero .tagline-en {
  font-family: var(--font-serif-en);
  font-size: clamp(1.1rem, 3vw, 1.7rem);
  font-weight: 300;
  font-style: italic;
  color: var(--accent-light);
  letter-spacing: 0.08em;
  margin-bottom: 40px;
}

.index-hero .intro {
  font-size: 0.95rem;
  line-height: 2.1;
  color: var(--text-body);
  max-width: 600px;
  border-left: 2px solid var(--light-gray);
  padding-left: 24px;
}

/* ── Content Sections ── */
.content-section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 72px 48px;
  border-bottom: 1px solid var(--light-gray);
}

.content-section:last-of-type {
  border-bottom: none;
}

.section-label {
  font-family: var(--font-serif-en);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.25em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 32px;
}

.section-title {
  font-family: var(--font-serif-zh);
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--text-dark);
  letter-spacing: 0.06em;
  margin-bottom: 20px;
  line-height: 1.5;
}

.section-body {
  font-size: 0.92rem;
  line-height: 2.1;
  color: var(--text-body);
}

.section-body p + p {
  margin-top: 1.4em;
}

/* ── Three Pillars (index) ── */
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--light-gray);
}

.pillar {
  padding: 48px 36px 48px 0;
  border-right: 1px solid var(--light-gray);
}

.pillar:last-child {
  border-right: none;
  padding-right: 0;
  padding-left: 36px;
}

.pillar:nth-child(2) {
  padding-left: 36px;
}

.pillar-icon {
  font-family: var(--font-serif-en);
  font-size: 1.6rem;
  font-weight: 300;
  font-style: italic;
  color: var(--accent-light);
  margin-bottom: 16px;
  line-height: 1;
}

.pillar h3 {
  font-family: var(--font-serif-zh);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-dark);
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.pillar p {
  font-size: 0.82rem;
  line-height: 1.9;
  color: var(--text-body);
}

/* ── Founder Block (index) ── */
.founder-block {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 56px;
  align-items: start;
}

.founder-left {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.founder-photo-wrap {
  width: 100%;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border: none;
  box-shadow: none;
  background: transparent;
}

.founder-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.founder-name-block {
  padding-top: 0;
}

.founder-name-zh {
  font-family: var(--font-serif-zh);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--text-dark);
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 6px;
}

.founder-name-en {
  font-family: var(--font-serif-en);
  font-size: 1rem;
  font-weight: 300;
  font-style: italic;
  color: var(--text-light);
  letter-spacing: 0.06em;
  display: block;
  margin-bottom: 16px;
}

.founder-role {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--accent);
  font-family: var(--font-serif-en);
  text-transform: uppercase;
}

.founder-bio {
  font-size: 0.9rem;
  line-height: 2.1;
  color: var(--text-body);
}

/* ── Collaboration Grid ── */
.collab-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-top: 1px solid var(--light-gray);
  border-left: 1px solid var(--light-gray);
}

.collab-item {
  padding: 40px;
  border-right: 1px solid var(--light-gray);
  border-bottom: 1px solid var(--light-gray);
}

.collab-item h3 {
  font-family: var(--font-serif-zh);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-dark);
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}

.collab-item h3::before {
  content: '—';
  font-family: var(--font-serif-en);
  font-weight: 300;
  color: var(--accent-light);
  margin-right: 10px;
}

.collab-item p {
  font-size: 0.85rem;
  line-height: 1.95;
  color: var(--text-body);
}

/* ── Initiatives ── */
.initiatives-intro {
  font-size: 0.92rem;
  line-height: 2.1;
  color: var(--text-body);
  max-width: 580px;
  margin-bottom: 60px;
}

.initiative-category {
  margin-bottom: 52px;
}

.initiative-category-label {
  font-family: var(--font-serif-en);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--light-gray);
}

.initiative-list {
  list-style: none;
  display: grid;
  gap: 0;
}

.initiative-list li {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--light-gray);
  font-size: 0.88rem;
  color: var(--text-body);
  line-height: 1.7;
}

.initiative-list li:last-child {
  border-bottom: none;
}

.initiative-list li::before {
  content: '·';
  font-family: var(--font-serif-en);
  font-size: 1.2rem;
  color: var(--accent-light);
  flex-shrink: 0;
  line-height: 1;
  margin-top: 2px;
}

.initiative-list li .item-title {
  font-family: var(--font-serif-zh);
  font-weight: 400;
  color: var(--text-dark);
  letter-spacing: 0.03em;
}

.initiative-list li .item-desc {
  font-size: 0.82rem;
  color: var(--text-light);
  margin-top: 3px;
  display: block;
}

/* ── Contact ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-info dt {
  font-family: var(--font-serif-en);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
  margin-top: 28px;
}

.contact-info dt:first-child {
  margin-top: 0;
}

.contact-info dd {
  font-size: 0.9rem;
  color: var(--text-body);
  line-height: 1.7;
}

.contact-info a {
  color: var(--text-body);
  text-decoration: none;
  border-bottom: 1px solid var(--mid-gray);
  transition: border-color 0.2s, color 0.2s;
}

.contact-info a:hover {
  color: var(--text-dark);
  border-color: var(--accent);
}

.contact-note {
  font-size: 0.88rem;
  line-height: 2.1;
  color: var(--text-body);
}

/* ── CTA Link ── */
.cta-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif-en);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  margin-top: 32px;
  transition: gap 0.2s ease;
}

.cta-link::after {
  content: '→';
  font-size: 1rem;
  transition: transform 0.2s ease;
}

.cta-link:hover {
  gap: 16px;
}

/* ── Footer ── */
footer {
  border-top: 1px solid var(--light-gray);
  padding: 40px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  background: var(--white);
}

.footer-left {
  font-family: var(--font-serif-en);
  font-size: 0.85rem;
  font-weight: 300;
  font-style: italic;
  color: var(--text-dark);
  letter-spacing: 0.04em;
}

.footer-meta {
  font-size: 0.72rem;
  color: var(--text-light);
  letter-spacing: 0.08em;
  line-height: 1.8;
  text-align: right;
}

.footer-meta a {
  color: var(--text-light);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-meta a:hover {
  color: var(--text-body);
}

/* ── Divider ── */
.divider {
  height: 1px;
  background: var(--light-gray);
  max-width: var(--max-width);
  margin: 0 auto;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  nav {
    padding: 0 24px;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--light-gray);
    flex-direction: column;
    gap: 0;
    padding: 16px 0;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    display: block;
    padding: 14px 24px;
    font-size: 0.9rem;
  }

  .nav-links a::after {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .page-hero,
  .index-hero,
  .content-section {
    padding-left: 24px;
    padding-right: 24px;
  }

  .index-hero {
    padding-top: 80px;
    padding-bottom: 64px;
  }

  .pillars {
    grid-template-columns: 1fr;
  }

  .pillar,
  .pillar:last-child,
  .pillar:nth-child(2) {
    padding: 36px 0;
    border-right: none;
    border-bottom: 1px solid var(--light-gray);
    padding-left: 0;
  }

  .pillar:last-child {
    border-bottom: none;
  }

  .founder-block {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .founder-left {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .founder-photo-wrap {
    width: 160px;
    flex-shrink: 0;
  }

  .collab-grid {
    grid-template-columns: 1fr;
  }

  .collab-item {
    padding: 28px 0;
    border-right: none;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  footer {
    padding: 32px 24px;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .footer-meta {
    text-align: left;
    font-size: 0.68rem;
  }

  .footer-meta .footer-hide-mobile {
    display: none;
  }
}