/* 1. Variables */
:root {
  --bg-obsidian: #111311;
  --bg-charcoal: #1B1E1A;
  --surface-green: #252C26;
  --surface-slate: #343A36;
  --accent-bronze: #B78343;
  --accent-copper: #668A7A;
  --accent-oxblood: #743B42;
  --accent-moorland: #66724D;
  --surface-vellum: #D9CFB8;
  
  --text-ivory: #F1EBDD;
  --text-linen: #C8C1B2;
  --text-grey: #8F948C;
  --text-obsidian: #111311;
  
  --border-color: #414840;
  
  --grad-primary: linear-gradient(135deg, #B78343, #743B42);
  --grad-secondary: linear-gradient(135deg, #668A7A, #66724D);
  
  --font-head: 'Cormorant Garamond', serif;
  --font-body: 'Inter', sans-serif;
  
  --trans-fast: 0.3s ease;
}

/* 2. Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  background-color: var(--bg-obsidian);
  color: var(--text-linen);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
ul, ol { list-style: none; }
a { text-decoration: none; color: inherit; transition: color var(--trans-fast); }
button, input, textarea { font-family: inherit; border: none; outline: none; background: none; }
img { display: block; max-width: 100%; height: auto; }

/* 3. Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  color: var(--text-ivory);
  font-weight: 500;
  line-height: 1.1;
}
.archive-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-bronze);
  display: block;
  margin-bottom: 0.5rem;
}
.text-link {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-ivory);
  border-bottom: 1px solid var(--accent-oxblood);
  padding-bottom: 2px;
  display: inline-block;
}
.text-link:hover { color: var(--accent-bronze); border-color: var(--accent-bronze); }
.vellum-text { color: var(--text-obsidian); }
.vellum-text h1, .vellum-text h2, .vellum-text h3 { color: var(--bg-obsidian); }
.vellum-text .archive-label { color: var(--accent-oxblood); }

/* 4. Global Layout */
.container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 4rem;
}
section {
  padding: 6rem 0;
  position: relative;
}
.image-wrapper {
  position: relative;
  overflow: hidden;
}
.image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.btn {
  display: inline-block;
  background-color: var(--surface-slate);
  color: var(--text-ivory);
  padding: 0.75rem 2rem;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all var(--trans-fast);
}
.btn:hover {
  background-color: var(--surface-green);
  border-color: var(--accent-bronze);
  color: var(--accent-bronze);
}
.btn-primary {
  background: var(--bg-charcoal);
  border: 1px solid var(--accent-bronze);
  color: var(--accent-bronze);
}
.btn-primary:hover {
  background: var(--accent-bronze);
  color: var(--bg-obsidian);
}
.return-home-container {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

/* 5. Status Line */
.status-line {
  background-color: var(--accent-bronze);
  color: var(--bg-obsidian);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.5rem 0;
  font-weight: 500;
}
.status-line .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.status-center { text-align: center; flex: 1; }

/* 6. Heritage Header */
.site-header {
  border-bottom: 1px solid var(--accent-bronze);
  background-color: var(--bg-obsidian);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border-color);
}
.brand-block {
  display: flex;
  align-items: center;
}
.brand-logo-img {
  height: 60px;
  width: auto;
  display: block;
}
.header-nav {
  padding: 1rem 0;
}
.nav-list {
  display: flex;
  gap: 3rem;
}
.nav-list a {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  position: relative;
}
.nav-list a:hover {
  color: var(--text-ivory);
}
.nav-list a.active::after, .nav-list a:hover::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--accent-oxblood);
}
.mobile-menu-btn {
  display: none;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-ivory);
  cursor: pointer;
}

/* 7. First Record Hero */
.hero-section {
  padding-top: 4rem;
  padding-bottom: 6rem;
}
.hero-title-block {
  margin-bottom: 3rem;
}
.hero-title-block h2 {
  font-size: 4.5rem;
  width: 70%;
  margin-top: 0.5rem;
}
.hero-title-block .hero-subhead {
  font-size: 1.15rem;
  color: var(--accent-bronze);
  margin-top: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
}
.hero-content {
  display: flex;
  gap: 4rem;
}
.hero-left {
  width: 35%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.hero-left p {
  font-size: 1.1rem;
  color: var(--text-linen);
  margin-bottom: 2.5rem;
}
.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-start;
}
.hero-right {
  width: 65%;
}
.hero-image {
  height: 600px;
}
.image-caption {
  display: flex;
  justify-content: space-between;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-grey);
}

/* 8. Collection Index */
.index-section {
  background-color: var(--bg-charcoal);
  border-top: 1px solid var(--border-color);
}
.index-container {
  display: flex;
  gap: 6rem;
}
.index-left {
  width: 30%;
}
.index-left .big-number {
  font-family: var(--font-head);
  font-size: 6rem;
  color: var(--surface-slate);
  line-height: 1;
  margin-bottom: 1rem;
}
.index-left h3 {
  font-size: 2rem;
  margin-bottom: 1rem;
}
.index-right {
  width: 70%;
}
.index-row {
  display: flex;
  gap: 2rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--border-color);
}
.index-row:first-child { padding-top: 0; }
.index-row .row-num {
  font-size: 0.85rem;
  color: var(--accent-bronze);
  width: 40px;
}
.index-row h4 {
  width: 250px;
  font-size: 1.25rem;
}
.index-row p {
  flex: 1;
  color: var(--text-grey);
}

/* 9. Game Exhibition Hall */
.game-section {
  background-color: var(--bg-obsidian);
}
.game-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 3rem;
}
.game-header-left h2 {
  font-size: 3.5rem;
}
.game-header-right {
  width: 35%;
  color: var(--text-grey);
}
.game-frame-container {
  display: flex;
  border: 1px solid var(--border-color);
  background-color: var(--bg-obsidian);
  border-radius: 10px;
  overflow: hidden;
  position: relative;
}
.game-frame-container::before, .game-frame-container::after {
  content: ''; position: absolute; width: 10px; height: 10px; border: 1px solid var(--accent-bronze);
}
.game-frame-container::before { top: 10px; left: 10px; border-right: none; border-bottom: none; }
.game-frame-container::after { top: 10px; right: 10px; border-left: none; border-bottom: none; }
.game-metadata-rail {
  width: 150px;
  background-color: var(--bg-charcoal);
  border-right: 1px solid var(--border-color);
  padding: 2rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.meta-item {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.meta-item span {
  display: block;
  color: var(--accent-bronze);
  margin-top: 0.25rem;
}
.game-iframe-wrapper {
  flex: 1;
  position: relative;
  background: #000;
  min-height: 600px;
}
.game-iframe-wrapper iframe {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  border: none;
}
.game-control-ledger {
  background-color: var(--surface-slate);
  border-top: 1px solid var(--accent-copper);
  padding: 1rem 2rem;
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
}

/* 10. Legacy Records */
/* Record 01 */
.record-01 {
  background-color: var(--surface-green);
}
.r1-layout {
  display: flex;
  gap: 4rem;
  align-items: center;
}
.r1-img {
  width: 60%;
  height: 500px;
}
.r1-text {
  width: 40%;
}
.r1-text .big-roman {
  font-family: var(--font-head);
  font-size: 5rem;
  color: var(--accent-bronze);
  line-height: 1;
  margin-bottom: 1rem;
}
.r1-text h3 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}
.r1-text p {
  margin-bottom: 2rem;
  color: var(--text-grey);
}

/* Record 02 */
.record-02 {
  background-color: var(--surface-vellum);
  position: relative;
}
.r2-bg-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-head);
  font-size: 15rem;
  color: rgba(65, 72, 64, 0.05);
  pointer-events: none;
  letter-spacing: 0.1em;
}
.r2-layout {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  z-index: 2;
}
.r2-text { width: 45%; }
.r2-text h3 { font-size: 3rem; margin-bottom: 1.5rem; }
.r2-text p { margin-bottom: 2rem; }
.r2-img { width: 35%; height: 600px; }

/* Record 03 */
.record-03 {
  background-color: var(--bg-charcoal);
  padding-top: 0;
}
.r3-img {
  width: 100%;
  height: 500px;
  margin-bottom: 4rem;
}
.r3-content h3 {
  font-size: 3rem;
  text-align: center;
  margin-bottom: 3rem;
}
.r3-cols {
  column-count: 3;
  column-gap: 3rem;
  color: var(--text-grey);
  font-size: 0.95rem;
}
.r3-action {
  text-align: center;
  margin-top: 3rem;
}

/* 11. Register */
.register-section {
  background-color: var(--surface-green);
  position: relative;
}
.register-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: repeating-conic-gradient(
    from 0deg,
    rgba(183, 131, 67, 0.03) 0deg 2deg,
    transparent 2deg 10deg
  );
  pointer-events: none;
}
.register-header {
  text-align: center;
  margin-bottom: 4rem;
  position: relative;
  z-index: 2;
}
.register-header h2 { font-size: 3.5rem; }
.register-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  position: relative;
  z-index: 2;
}
.register-item {
  border-top: 1px solid var(--accent-bronze);
  padding-top: 1.5rem;
}
.register-item .num {
  font-family: var(--font-head);
  font-size: 1.5rem;
  color: var(--accent-bronze);
  margin-bottom: 0.5rem;
}
.register-item h4 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}
.register-item p { color: var(--text-grey); font-size: 0.9rem; }

/* 12. Platform Ledger */
.ledger-section {
  background-color: var(--surface-vellum);
}
.ledger-container {
  display: flex;
  gap: 4rem;
}
.ledger-left {
  width: 30%;
}
.ledger-left h2 { font-size: 3rem; }
.ledger-right {
  width: 70%;
}
.ledger-table {
  width: 100%;
  border-collapse: collapse;
}
.ledger-table tr {
  border-bottom: 1px solid var(--border-color);
}
.ledger-table td {
  padding: 1.5rem 0;
  color: var(--text-obsidian);
}
.ledger-table td:first-child {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
  width: 30%;
}

/* 13. Correspondence */
.correspondence-section {
  background-color: var(--bg-charcoal);
  border-top: 1px solid var(--border-color);
}
.corr-container {
  display: flex;
  gap: 6rem;
}
.corr-left { width: 40%; }
.corr-left h2 { font-size: 3rem; margin-bottom: 2rem; }
.corr-email {
  display: block;
  font-family: var(--font-head);
  font-size: 1.5rem;
  color: var(--accent-bronze);
  margin-bottom: 3rem;
}
.corr-faq {
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
}
.corr-faq h4 { margin-bottom: 1.5rem; font-size: 1.25rem; }
.corr-faq ul li { margin-bottom: 1rem; }
.corr-faq ul a {
  color: var(--text-grey);
  font-size: 0.95rem;
  display: block;
  transition: color var(--trans-fast);
}
.corr-faq ul a:hover { color: var(--text-ivory); }
.corr-right { width: 60%; }
.archive-form {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.form-group {
  display: flex;
  flex-direction: column;
}
.form-group label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
  color: var(--text-grey);
}
.form-group input, .form-group textarea {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 0;
  color: var(--text-ivory);
  font-size: 1rem;
  transition: border-color var(--trans-fast);
}
.form-group input:focus, .form-group textarea:focus {
  border-color: var(--accent-bronze);
}
.form-group textarea { height: 100px; resize: vertical; }
#form-message { margin-top: 1rem; font-size: 0.85rem; }

/* 14. Cookie Notice */
.cookie-notice {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: var(--surface-vellum);
  border-top: 3px solid var(--accent-bronze);
  border-radius: 8px;
  padding: 1.5rem;
  width: 320px;
  z-index: 1000;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  display: none;
}
.cookie-notice .archive-label { color: var(--bg-obsidian); }
.cookie-notice h4 { color: var(--bg-obsidian); margin-bottom: 0.5rem; font-size: 1.2rem; }
.cookie-notice p { color: var(--surface-slate); font-size: 0.85rem; margin-bottom: 1.5rem; }
.cookie-actions { display: flex; gap: 1rem; }
.cookie-actions button {
  flex: 1;
  padding: 0.5rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  border: 1px solid var(--bg-obsidian);
  color: var(--bg-obsidian);
  transition: all var(--trans-fast);
}
.cookie-actions button:hover { background: var(--bg-obsidian); color: var(--surface-vellum); }

/* 15. Monument Footer */
.site-footer {
  background-color: var(--bg-obsidian);
  border-top: 1px solid var(--border-color);
}
.footer-top {
  padding: 6rem 0;
  display: flex;
  gap: 4rem;
}
.footer-left { width: 45%; }
.footer-logo-img {
  height: 70px;
  width: auto;
  display: block;
  margin-bottom: 1.5rem;
}
.footer-left p { font-size: 0.9rem; color: var(--text-grey); margin-bottom: 1.5rem; max-width: 90%; }
.footer-email {
  font-family: var(--font-head);
  color: var(--accent-bronze);
  font-size: 1.2rem;
}
.footer-address {
  margin-top: 1.5rem;
  color: var(--text-grey);
  font-size: 0.9rem;
  line-height: 1.5;
}
.footer-address-inline {
  display: block;
  margin-top: 0.25rem;
  text-transform: none;
  letter-spacing: normal;
  color: var(--text-grey);
}
.footer-right {
  width: 55%;
  display: flex;
  justify-content: space-between;
}
.footer-col h5 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-linen);
  margin-bottom: 1.5rem;
}
.footer-col ul li { margin-bottom: 0.75rem; }
.footer-col ul a {
  font-size: 0.85rem;
  color: var(--text-grey);
}
.footer-col ul a:hover { color: var(--accent-bronze); }
.footer-bottom {
  background-color: var(--surface-slate);
  padding: 1rem 0;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-grey);
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* 16. Internal Pages */
.internal-masthead {
  padding: 4rem 0 2rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 4rem;
}
.internal-masthead h1 { font-size: 3.5rem; margin-bottom: 1rem; }
.internal-meta { font-size: 0.85rem; color: var(--text-grey); }
.content-wrapper {
  max-width: 800px;
  margin: 0 auto;
}
.vellum-content-section {
  background-color: var(--surface-vellum);
  padding: 4rem;
  margin-bottom: 4rem;
  color: var(--text-obsidian);
}
.vellum-content-section h2 { color: var(--bg-obsidian); margin-bottom: 1.5rem; font-size: 2rem; }
.vellum-content-section h3 { color: var(--bg-obsidian); margin: 2rem 0 1rem; font-size: 1.5rem; }
.vellum-content-section p { margin-bottom: 1.25rem; }
.vellum-content-section ul { margin-bottom: 1.25rem; padding-left: 1.5rem; list-style: square; }
.divider-bronze { height: 1px; background: var(--accent-bronze); margin: 3rem 0; }

/* 17. Animations */
@media (prefers-reduced-motion: no-preference) {
  .fade-in { animation: fadeIn 0.3s ease forwards; }
  @keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
}

/* 18. Responsive Rules */
@media (max-width: 1024px) {
  .hero-title-block h2 { width: 100%; font-size: 3.5rem; }
  .hero-content { flex-direction: column; }
  .hero-left, .hero-right { width: 100%; }
  .hero-image { height: 400px; }
  .index-container { flex-direction: column; gap: 3rem; }
  .index-left, .index-right { width: 100%; }
  .game-header { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .game-header-right { width: 100%; }
  .game-frame-container { flex-direction: column; }
  .game-metadata-rail { width: 100%; border-right: none; border-bottom: 1px solid var(--border-color); flex-direction: row; flex-wrap: wrap; padding: 1rem; }
  .r1-layout, .r2-layout { flex-direction: column; gap: 3rem; }
  .r1-img, .r1-text, .r2-text, .r2-img { width: 100%; }
  .r2-img { height: 400px; }
  .ledger-container { flex-direction: column; gap: 2rem; }
  .ledger-left, .ledger-right { width: 100%; }
  .corr-container { flex-direction: column; gap: 3rem; }
  .corr-left, .corr-right { width: 100%; }
  .footer-top { flex-direction: column; gap: 4rem; }
  .footer-left, .footer-right { width: 100%; }
}
@media (max-width: 768px) {
  .container { padding: 0 2rem; }
  .status-line { display: none; }
  .header-top { border-bottom: none; }
  .header-nav { display: none; position: absolute; top: 100%; left: 0; width: 100%; background: var(--bg-charcoal); padding: 2rem; border-bottom: 1px solid var(--accent-bronze); }
  .header-nav.active { display: block; }
  .nav-list { flex-direction: column; gap: 1.5rem; }
  .mobile-menu-btn { display: block; }
  .r3-cols { column-count: 1; }
  .register-grid { grid-template-columns: 1fr; }
  .footer-right { flex-direction: column; gap: 2rem; }
  .footer-bottom .container { flex-direction: column; gap: 1rem; text-align: center; }
  .cookie-notice { bottom: 1rem; right: 1rem; width: calc(100% - 2rem); }
}