@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:ital,wght@0,400;0,500;0,600;1,400&family=Spectral:ital,wght@0,400;0,600;0,700;1,400&display=swap');

:root {
  --nautical-navy: #0C4A6E;
  --brass: #A16207;
  --map-parchment: #FEF3C7;
  --maritime-teal: #0F766E;
  --crimson: #9F1239;
  --ink: #134E4A;
  --fog: #E0F2FE;
  --label-bg: #FFFBEB;
  --max-width: 1280px;
  --header-h: 4.25rem;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--map-parchment);
  background-image:
    linear-gradient(90deg, rgba(12, 74, 110, 0.03) 1px, transparent 1px),
    linear-gradient(rgba(12, 74, 110, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
}

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

a {
  color: var(--nautical-navy);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.25s;
}
a:hover { color: var(--crimson); }

h1, h2, h3, h4 {
  font-family: 'Spectral', Georgia, serif;
  font-weight: 600;
  color: var(--nautical-navy);
  line-height: 1.3;
}

h1 { font-size: clamp(2rem, 4vw, 2.75rem); margin-bottom: 1rem; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin: 2.5rem 0 1rem; }
h3 { font-size: 1.25rem; margin: 1.25rem 0 0.65rem; }

.exhibit-label {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brass);
}

/* Header — chart room masthead */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  background: var(--nautical-navy);
  border-bottom: 3px solid var(--brass);
  box-shadow: 0 4px 20px rgba(12, 74, 110, 0.35);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.75rem 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.logo-block { display: flex; align-items: center; gap: 0.85rem; }

.compass-rose {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  transition: transform 0.6s ease;
}

.compass-rose.spin { transform: rotate(45deg); }

.logo {
  font-family: 'Spectral', serif;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--map-parchment);
  text-decoration: none;
  line-height: 1.2;
}
.logo span {
  display: block;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brass);
  margin-top: 0.15rem;
}
.logo:hover { color: #fff; }

.main-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.5rem;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--fog);
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.3s, color 0.3s;
}
.main-nav a:hover,
.main-nav a.active {
  color: #fff;
  border-bottom-color: var(--brass);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 2px solid var(--brass);
  color: var(--map-parchment);
  padding: 0.4rem 0.65rem;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.85rem;
  cursor: pointer;
  border-radius: 2px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.7rem 1.5rem;
  background: var(--maritime-teal);
  color: #fff;
  border: 2px solid var(--maritime-teal);
  border-radius: 2px;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.3s, border-color 0.3s, transform 0.3s;
}
.btn:hover {
  background: var(--nautical-navy);
  border-color: var(--brass);
  color: #fff;
  transform: translateY(-2px);
}

.btn-brass {
  background: var(--brass);
  border-color: var(--brass);
  color: var(--map-parchment);
}
.btn-brass:hover {
  background: var(--crimson);
  border-color: var(--crimson);
}

.btn-outline {
  background: transparent;
  color: var(--nautical-navy);
  border-color: var(--nautical-navy);
}
.btn-outline:hover {
  background: var(--nautical-navy);
  color: #fff;
}

/* Layout */
main { padding-top: var(--header-h); }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.75rem 3.5rem;
}

.container-narrow {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 1.75rem 3.5rem;
}

/* Hero — Exhibit 01 */
.hero-exhibit {
  position: relative;
  overflow: hidden;
  background: var(--nautical-navy);
  color: var(--map-parchment);
  padding: 4rem 1.75rem 5rem;
}

.hero-exhibit::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 80% 20%, rgba(161, 98, 7, 0.18) 0%, transparent 55%);
  pointer-events: none;
}

.hero-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-exhibit h1 { color: var(--map-parchment); }

.hero-tag {
  display: inline-block;
  background: var(--brass);
  color: var(--map-parchment);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.35rem 0.85rem;
  margin-bottom: 1.25rem;
}

.hero-lead {
  font-size: 1.2rem;
  line-height: 1.6;
  margin-bottom: 1.75rem;
  opacity: 0.95;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }

.hero-vitrine {
  position: relative;
  border: 4px solid var(--brass);
  padding: 0.5rem;
  background: rgba(254, 243, 199, 0.08);
  box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.25);
}

.hero-vitrine img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.vitrine-placard {
  position: absolute;
  bottom: -1rem;
  left: 1.5rem;
  right: 1.5rem;
  background: var(--label-bg);
  border-left: 4px solid var(--crimson);
  padding: 0.65rem 1rem;
  font-size: 0.82rem;
  color: var(--ink);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Trust strip */
.trust-strip {
  background: var(--maritime-teal);
  color: #fff;
  padding: 1.25rem 1.75rem;
  border-bottom: 2px solid var(--brass);
}

.trust-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem 3rem;
  font-size: 0.88rem;
  font-weight: 500;
  text-align: center;
}

.trust-inner span::before {
  content: '◆ ';
  color: var(--brass);
}

/* Section bands */
.section-band {
  padding: 3.5rem 0;
  border-bottom: 1px solid rgba(12, 74, 110, 0.12);
}

.section-band.alt {
  background: rgba(255, 255, 255, 0.45);
}

.section-intro {
  max-width: 720px;
  margin-bottom: 2.5rem;
}

/* Card grids */
.card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.card-grid-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid-2 { grid-template-columns: repeat(2, 1fr); }

.exhibit-card {
  background: #fff;
  border: 1px solid rgba(12, 74, 110, 0.15);
  border-top: 4px solid var(--maritime-teal);
  padding: 1.5rem;
  transition: transform 0.35s, box-shadow 0.35s;
}

.exhibit-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(12, 74, 110, 0.12);
}

.exhibit-card .card-num {
  font-family: 'Spectral', serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--brass);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.exhibit-card img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  margin-bottom: 1rem;
  border: 2px solid var(--map-parchment);
}

.exhibit-card .price-tag {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--crimson);
}

/* Heritage desk band */
.heritage-band {
  background: linear-gradient(135deg, var(--nautical-navy) 0%, #0a3d5c 100%);
  color: var(--map-parchment);
  padding: 3.5rem 1.75rem;
  margin: 0;
}

.heritage-band h2 { color: var(--map-parchment); }

.heritage-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.heritage-band p { opacity: 0.92; margin-bottom: 1rem; }

/* Steps timeline */
.steps-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  counter-reset: step;
}

.step-item {
  text-align: center;
  padding: 1.25rem 0.75rem;
  background: #fff;
  border: 1px dashed rgba(161, 98, 7, 0.4);
  position: relative;
}

.step-item::before {
  counter-increment: step;
  content: counter(step);
  display: block;
  width: 2.25rem;
  height: 2.25rem;
  line-height: 2.25rem;
  margin: 0 auto 0.75rem;
  background: var(--brass);
  color: #fff;
  font-weight: 700;
  border-radius: 50%;
  font-size: 0.95rem;
}

/* FAQ accordion style */
.faq-list { list-style: none; }

.faq-item {
  background: #fff;
  border: 1px solid rgba(12, 74, 110, 0.12);
  margin-bottom: 0.75rem;
  padding: 1.25rem 1.5rem;
}

.faq-item h3 {
  font-size: 1.05rem;
  margin: 0 0 0.5rem;
  color: var(--maritime-teal);
}

/* Testimonials */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.testimonial-card {
  background: var(--label-bg);
  border-left: 4px solid var(--brass);
  padding: 1.5rem;
  font-style: italic;
}

.testimonial-card cite {
  display: block;
  margin-top: 1rem;
  font-style: normal;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--nautical-navy);
}

/* CTA block */
.cta-block {
  text-align: center;
  padding: 3.5rem 1.75rem;
  background: var(--map-parchment);
  border-top: 3px double var(--brass);
  border-bottom: 3px double var(--brass);
}

/* Disclaimer */
.disclaimer-box {
  background: rgba(159, 18, 57, 0.06);
  border: 1px solid rgba(159, 18, 57, 0.25);
  border-left: 5px solid var(--crimson);
  padding: 1.5rem 1.75rem;
  font-size: 0.92rem;
  line-height: 1.65;
  margin: 2rem 0;
}

.page-hero {
  background: var(--nautical-navy);
  color: var(--map-parchment);
  padding: 3rem 1.75rem 2.5rem;
  margin-bottom: 2rem;
}

.page-hero h1 { color: var(--map-parchment); margin-bottom: 0.5rem; }
.page-hero p { opacity: 0.9; max-width: 640px; }

/* Parallax layers */
.parallax-wrap {
  position: relative;
  overflow: hidden;
  min-height: 280px;
}

.parallax-bg {
  position: absolute;
  inset: -15% 0;
  background-size: cover;
  background-position: center;
  will-change: transform;
}

.parallax-overlay {
  position: relative;
  z-index: 2;
  padding: 3rem 1.75rem;
  background: linear-gradient(90deg, rgba(12, 74, 110, 0.88) 0%, rgba(12, 74, 110, 0.65) 100%);
  color: var(--map-parchment);
  min-height: 280px;
  display: flex;
  align-items: center;
}

.parallax-overlay h2 { color: var(--map-parchment); margin: 0; }

/* Scroll reveal */
.reveal-section {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal-section.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Contact form */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: start;
}

.contact-details {
  background: #fff;
  border: 2px solid var(--maritime-teal);
  padding: 2rem;
}

.contact-details dt {
  font-weight: 600;
  color: var(--nautical-navy);
  margin-top: 1rem;
}
.contact-details dt:first-child { margin-top: 0; }
.contact-details dd { margin-left: 0; margin-top: 0.25rem; }

.form-panel {
  background: #fff;
  border: 1px solid rgba(12, 74, 110, 0.15);
  padding: 2rem;
}

.form-group { margin-bottom: 1.25rem; }

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
  color: var(--nautical-navy);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 1px solid rgba(12, 74, 110, 0.25);
  border-radius: 2px;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 1rem;
  background: var(--label-bg);
}

.form-group textarea { min-height: 140px; resize: vertical; }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: 2px solid var(--maritime-teal);
  outline-offset: 1px;
}

.hp-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  overflow: hidden;
}

.consent-row {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  font-size: 0.88rem;
}

.consent-row input { width: auto; margin-top: 0.25rem; }

.form-status {
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  border-radius: 2px;
  font-weight: 500;
}
.form-status.ok { background: rgba(15, 118, 110, 0.12); border: 1px solid var(--maritime-teal); color: var(--maritime-teal); }
.form-status.err { background: rgba(159, 18, 57, 0.1); border: 1px solid var(--crimson); color: var(--crimson); }

/* Legal prose */
.legal-prose h2 { margin-top: 2rem; }
.legal-prose p, .legal-prose li { margin-bottom: 0.85rem; }
.legal-prose ul, .legal-prose ol { margin: 0.75rem 0 1rem 1.5rem; }

/* Footer */
.site-footer {
  background: var(--nautical-navy);
  color: var(--fog);
  padding: 3rem 1.75rem 2rem;
  border-top: 4px solid var(--brass);
}

.footer-grid {
  max-width: var(--max-width);
  margin: 0 auto 2rem;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2.5rem;
}

.footer-grid h4 {
  font-family: 'Spectral', serif;
  color: var(--map-parchment);
  font-size: 1rem;
  margin-bottom: 0.85rem;
}

.footer-grid ul { list-style: none; }
.footer-grid li { margin-bottom: 0.45rem; }
.footer-grid a { color: var(--fog); text-decoration: none; font-size: 0.92rem; }
.footer-grid a:hover { color: var(--brass); }

.footer-tagline {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(254, 243, 199, 0.15);
  font-size: 0.82rem;
  line-height: 1.55;
  opacity: 0.85;
  text-align: center;
}

.footer-meta {
  max-width: var(--max-width);
  margin: 1rem auto 0;
  font-size: 0.78rem;
  opacity: 0.7;
  text-align: center;
}

/* Cookie banner */
#cookie-banner {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 300;
  background: var(--nautical-navy);
  color: var(--map-parchment);
  padding: 1.25rem 1.75rem;
  border-top: 3px solid var(--brass);
  box-shadow: 0 -8px 30px rgba(0, 0, 0, 0.25);
  transform: translateY(110%);
  transition: transform 0.4s ease;
}

#cookie-banner.show { transform: translateY(0); }

.cookie-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
}

.cookie-text {
  flex: 1 1 320px;
  font-size: 0.88rem;
  line-height: 1.55;
}

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.cookie-actions .btn {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}

#cookie-modal {
  position: fixed;
  inset: 0;
  z-index: 400;
  background: rgba(12, 74, 110, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

#cookie-modal.show { opacity: 1; visibility: visible; }

.modal-panel {
  background: var(--map-parchment);
  max-width: 480px;
  width: 100%;
  padding: 2rem;
  border: 3px solid var(--brass);
  border-radius: 2px;
}

.modal-panel h3 { margin-top: 0; }

.toggle-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(12, 74, 110, 0.12);
}

.modal-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

/* 404 */
.error-page {
  text-align: center;
  padding: 5rem 1.75rem;
  min-height: 50vh;
}

.error-page h1 { font-size: 2.5rem; margin-bottom: 1rem; }
.error-code {
  font-family: 'Spectral', serif;
  font-size: 6rem;
  font-weight: 700;
  color: var(--brass);
  line-height: 1;
  margin-bottom: 1rem;
}

/* Responsive */
@media (max-width: 1024px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-row { grid-template-columns: repeat(3, 1fr); }
  .hero-grid { grid-template-columns: 1fr; }
  .heritage-inner { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--nautical-navy);
    padding: 1rem 1.75rem 1.5rem;
    border-bottom: 3px solid var(--brass);
  }

  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; gap: 0.75rem; }

  .header-inner { position: relative; flex-wrap: wrap; }

  .card-grid,
  .card-grid-3,
  .card-grid-2,
  .testimonial-grid,
  .contact-grid,
  .steps-row { grid-template-columns: 1fr; }

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