/* ─────────────────────────────────────────
   DIFFERSON — Global Stylesheet
   Clean · Minimal · Black & White
───────────────────────────────────────── */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;900&display=swap');

:root {
  --black:   #0a0a0a;
  --white:   #ffffff;
  --gray-100:#f5f5f5;
  --gray-200:#e8e8e8;
  --gray-400:#9e9e9e;
  --gray-600:#555555;
  --border:  1px solid #e0e0e0;
  --font:    'Inter', sans-serif;
  --max-w:   1200px;
  --transition: 0.25s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--white);
  color: var(--black);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { list-style: none; }

/* ── Layout ── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 40px;
}

section { padding: 100px 0; }

/* ── Navigation ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  border-bottom: var(--border);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 40px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 36px;
  align-items: center;
}

.nav-links a {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-600);
  transition: color var(--transition);
}

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

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

.nav-cta {
  font-size: 11px !important;
  font-weight: 600 !important;
  letter-spacing: 0.1em !important;
  color: var(--white) !important;
  background: var(--black);
  padding: 9px 20px;
  border-radius: 2px;
  transition: background var(--transition) !important;
}
.nav-cta:hover { background: var(--gray-600) !important; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--black);
  transition: all var(--transition);
}

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 64px; left: 0; right: 0; bottom: 0;
  background: var(--white);
  z-index: 999;
  padding: 40px;
  flex-direction: column;
  gap: 28px;
  overflow-y: auto;
}

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

.mobile-nav a {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--black);
  border-bottom: var(--border);
  padding-bottom: 20px;
}

/* ── Page offset for fixed nav ── */
.page-top { padding-top: 64px; }

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 64px;
  border-bottom: var(--border);
}

.hero-content { max-width: 780px; }

.hero-eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(42px, 7vw, 88px);
  font-weight: 900;
  line-height: 1.0;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}

.hero-title span { display: block; }

.hero-sub {
  font-size: 17px;
  font-weight: 300;
  color: var(--gray-600);
  max-width: 520px;
  margin-bottom: 48px;
  line-height: 1.8;
}

/* ── Buttons ── */
.btn {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 14px 32px;
  border-radius: 2px;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn-dark {
  background: var(--black);
  color: var(--white);
}
.btn-dark:hover { background: var(--gray-600); }

.btn-outline {
  background: transparent;
  color: var(--black);
  border: 1px solid var(--black);
}
.btn-outline:hover { background: var(--black); color: var(--white); }

.btn-group { display: flex; gap: 16px; flex-wrap: wrap; }

/* ── Section Labels ── */
.section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 20px;
}

.section-body {
  font-size: 15px;
  color: var(--gray-600);
  line-height: 1.85;
  max-width: 620px;
}

/* ── Divider ── */
hr.divider {
  border: none;
  border-top: var(--border);
  margin: 0;
}

/* ── Lineup Grid ── */
.lineup-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1px;
  background: var(--gray-200);
  border: var(--border);
  margin-top: 60px;
}

.lineup-card {
  background: var(--white);
  padding: 44px 40px;
  transition: background var(--transition);
  position: relative;
}

.lineup-card:hover { background: var(--gray-100); }

.lineup-card-tag {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 12px;
}

.lineup-card-name {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}

.lineup-card-desc {
  font-size: 13px;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 24px;
}

.lineup-card-link {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition);
}

.lineup-card-link:hover { gap: 10px; }

.lineup-card-link::after { content: '→'; }

/* Coming soon badge */
.badge {
  display: inline-block;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border: 1px solid var(--gray-400);
  color: var(--gray-400);
  border-radius: 2px;
  margin-left: 10px;
  vertical-align: middle;
}

/* ── About Section ── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.about-quote {
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.02em;
  border-left: 3px solid var(--black);
  padding-left: 28px;
  margin-bottom: 40px;
}

.about-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 40px;
}

.meta-item-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 6px;
}

.meta-item-value {
  font-size: 14px;
  font-weight: 500;
  color: var(--black);
}

/* ── Foundation Section ── */
.foundation-box {
  background: var(--black);
  color: var(--white);
  padding: 80px;
  margin-top: 60px;
}

.foundation-box .section-label { color: rgba(255,255,255,0.4); }
.foundation-box .section-title { color: var(--white); }
.foundation-box .section-body { color: rgba(255,255,255,0.6); }

.foundation-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 60px;
  padding-top: 60px;
  border-top: 1px solid rgba(255,255,255,0.12);
}

.stat-number {
  font-size: 40px;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--white);
  margin-bottom: 8px;
}

.stat-label {
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  font-weight: 400;
  line-height: 1.6;
}

/* ── Contact Section ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-info { padding-top: 8px; }
.contact-info-email {
  font-size: 18px;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 8px;
}
.contact-info-note {
  font-size: 13px;
  color: var(--gray-400);
}

/* Form */
.form-group { margin-bottom: 20px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-600);
  margin-bottom: 8px;
}

input, textarea, select {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font);
  font-size: 14px;
  color: var(--black);
  background: var(--gray-100);
  border: 1px solid transparent;
  border-radius: 2px;
  outline: none;
  transition: border-color var(--transition);
}

input:focus, textarea:focus, select:focus {
  border-color: var(--black);
  background: var(--white);
}

textarea { resize: vertical; min-height: 120px; }

/* ── Footer ── */
footer {
  background: var(--black);
  color: var(--white);
  padding: 64px 0 32px;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 40px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand-name {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.footer-brand-desc {
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  line-height: 1.8;
  max-width: 260px;
}

.footer-col-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 10px;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--white); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 28px;
  font-size: 12px;
  color: rgba(255,255,255,0.3);
}

/* ── Sub-page Hero ── */
.subhero {
  padding: 120px 0 80px;
  border-bottom: var(--border);
}

.subhero-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 20px;
}

.subhero-title {
  font-size: clamp(36px, 6vw, 72px);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.0;
  margin-bottom: 24px;
}

.subhero-desc {
  font-size: 17px;
  color: var(--gray-600);
  max-width: 560px;
  line-height: 1.8;
}

/* ── Packages / Pricing ── */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1px;
  background: var(--gray-200);
  border: var(--border);
  margin-top: 60px;
}

.pricing-card {
  background: var(--white);
  padding: 44px 36px;
}

.pricing-card.featured {
  background: var(--black);
  color: var(--white);
}

.pricing-card-name {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.pricing-card.featured .pricing-card-name { color: rgba(255,255,255,0.5); }

.pricing-price {
  font-size: 36px;
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 4px;
}

.pricing-original {
  font-size: 13px;
  color: var(--gray-400);
  text-decoration: line-through;
  margin-bottom: 20px;
}

.pricing-card.featured .pricing-original { color: rgba(255,255,255,0.3); }

.pricing-desc {
  font-size: 13px;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 28px;
  padding-top: 20px;
  border-top: var(--border);
}

.pricing-card.featured .pricing-desc { color: rgba(255,255,255,0.55); border-top-color: rgba(255,255,255,0.1); }

/* ── Artwork Grid ── */
.artwork-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1px;
  background: var(--gray-200);
  border: var(--border);
  margin-top: 60px;
}

.artwork-item {
  background: var(--gray-100);
  aspect-ratio: 1;
  display: flex;
  align-items: flex-end;
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.artwork-item-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--black);
  background: var(--white);
  padding: 10px 16px;
  display: inline-block;
}

/* ── Exhibitions ── */
.exhibition-list { margin-top: 40px; }

.exhibition-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 32px;
  padding: 28px 0;
  border-bottom: var(--border);
  align-items: start;
}

.exhibition-year {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--gray-400);
  padding-top: 3px;
}

.exhibition-name {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.exhibition-details {
  font-size: 13px;
  color: var(--gray-600);
}

/* ── Utility ── */
.text-center { text-align: center; }
.mt-12 { margin-top: 12px; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }
.mt-60 { margin-top: 60px; }
.mb-60 { margin-bottom: 60px; }

/* ── Scroll reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .container { padding: 0 24px; }
  .nav-inner { padding: 0 24px; }
  .nav-links { display: none; }
  .hamburger { display: flex; }

  section { padding: 72px 0; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .foundation-box { padding: 48px 32px; }
  .foundation-stats { grid-template-columns: 1fr 1fr; gap: 28px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .hero-title { font-size: 42px; }
  .lineup-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .foundation-stats { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-inner { padding: 0 24px; }
  .exhibition-item { grid-template-columns: 1fr; gap: 8px; }
}