@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400&family=Inter:wght@300;400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;600;700&display=swap');

:root {
  --bg: #12100e;
  --panel: #171411;
  --panel-soft: #1c1916;
  --panel-deep: #141210;
  --text: #e8e0d4;
  --muted: #9a8f82;
  --fine: #8C8074;
  --border: #2e2925;
  --border-strong: #433b34;
  --accent: #c9a84c;
  --accent-soft: rgba(201, 168, 76, 0.22);
  --shadow: 0 30px 60px rgba(0, 0, 0, 0.22);
  --content: 1240px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top right, rgba(201, 168, 76, 0.09), transparent 30%),
    radial-gradient(circle at bottom left, rgba(255, 255, 255, 0.03), transparent 24%),
    var(--bg);
  color: var(--text);
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

.shell {
  width: min(calc(100% - 40px), var(--content));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid rgba(46, 41, 37, 0.94);
  background: rgba(18, 16, 14, 0.84);
  backdrop-filter: blur(18px);
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0;
}

.brand {
  font-family: 'Cormorant Garamond', 'Noto Sans SC', serif;
  font-size: clamp(22px, 4vw, 28px);
  font-style: italic;
  color: var(--accent);
  letter-spacing: 0.01em;
}

.nav-menu {
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-links a {
  color: var(--fine);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition: color 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

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

.nav-cta {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(201, 168, 76, 0.24);
  border-radius: 999px;
  padding: 0 18px;
  color: var(--accent) !important;
  background: rgba(23, 20, 17, 0.88);
}

.nav-cta:hover {
  border-color: var(--accent);
  background: rgba(201, 168, 76, 0.08);
}

.nav-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  list-style: none;
  cursor: pointer;
}

.nav-menu-toggle::-webkit-details-marker {
  display: none;
}

.nav-menu-icon {
  position: relative;
  display: block;
  width: 18px;
  height: 1.5px;
  background: currentColor;
  border-radius: 999px;
}

.nav-menu-icon::before,
.nav-menu-icon::after {
  content: '';
  position: absolute;
  left: 0;
  width: 18px;
  height: 1.5px;
  background: currentColor;
  border-radius: 999px;
}

.nav-menu-icon::before {
  top: -5px;
}

.nav-menu-icon::after {
  top: 5px;
}

.hero {
  display: grid;
  gap: 42px;
  grid-template-columns: minmax(0, 1.08fr) minmax(300px, 0.92fr);
  align-items: start;
  padding: 56px 0 44px;
}

.hero-copy {
  position: relative;
}

.hero-copy::before {
  content: '';
  position: absolute;
  left: -24px;
  top: 0;
  width: 112px;
  height: 112px;
  border: 1px solid rgba(46, 41, 37, 0.72);
  border-radius: 999px;
  pointer-events: none;
}

.hero-copy::after {
  content: '';
  position: absolute;
  right: 0;
  top: 86px;
  width: min(180px, 26%);
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(201, 168, 76, 0.36), transparent);
  pointer-events: none;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 30px;
  color: var(--fine);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero-kicker,
.panel-kicker,
.guide-label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero-line {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
}

.hero-line span {
  width: 48px;
  height: 1px;
  background: rgba(201, 168, 76, 0.34);
}

.hero-line p,
.panel-note {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fine);
}

.hero h1,
.section-heading h2,
.split-head h2,
.cta-band h2,
.guide-card h3,
.summary-card h3,
.clarify-card h3 {
  margin: 0;
  font-family: 'Cormorant Garamond', 'Noto Sans SC', serif;
  font-weight: 400;
  line-height: 0.96;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.hub-hero h1 {
  margin-top: 24px;
  max-width: 14ch;
  font-size: clamp(42px, 7vw, 88px);
}

.guide-hero h1 {
  margin-top: 24px;
  max-width: 16ch;
  font-size: clamp(34px, 4.8vw, 64px);
}

.hero-dek,
.cta-copy {
  margin: 24px 0 0;
  max-width: 44ch;
  font-size: 17px;
  line-height: 1.85;
  color: var(--muted);
}

.hero-signals {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.signal-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  background: rgba(23, 20, 17, 0.92);
  padding: 8px 12px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.signal-dot {
  color: var(--accent);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0 20px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition: border-color 180ms ease, background-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--bg);
}

.button-primary:hover {
  background: #dfb74d;
}

.button-secondary {
  background: rgba(23, 20, 17, 0.92);
  color: var(--text);
}

.button-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.hero-panel,
.summary-card,
.contrast-card,
.faq-item,
.guide-card,
.clarify-card {
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(28, 25, 22, 0.96), rgba(20, 18, 16, 0.98));
  box-shadow: var(--shadow);
}

.hero-panel {
  position: sticky;
  top: 100px;
  overflow: hidden;
  padding: 22px;
}

.hero-panel::before {
  content: '';
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(201, 168, 76, 0.36), transparent);
}

.panel-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 16px;
}

.panel-kicker {
  letter-spacing: 0.22em;
}

.panel-list {
  counter-reset: panel-item;
  display: grid;
  gap: 14px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.panel-list li {
  position: relative;
  padding: 14px 0 0 38px;
  color: var(--muted);
  border-top: 1px solid rgba(46, 41, 37, 0.9);
}

.panel-list li::before {
  counter-increment: panel-item;
  content: "0" counter(panel-item);
  position: absolute;
  left: 0;
  top: 14px;
  color: rgba(201, 168, 76, 0.78);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.panel-list li:first-child {
  max-width: 16ch;
  padding-top: 0;
  border-top: 0;
  color: var(--text);
  font-family: 'Cormorant Garamond', 'Noto Sans SC', serif;
  font-size: clamp(24px, 2.8vw, 34px);
  line-height: 1.02;
  letter-spacing: -0.03em;
}

.panel-list li:first-child::before {
  top: 0;
}

.panel-list li:nth-child(2) {
  margin-right: 18px;
}

.panel-list li:nth-child(3) {
  margin-left: 26px;
  padding-left: 46px;
}

.page-section {
  padding: 56px 0;
  border-top: 1px solid rgba(46, 41, 37, 0.92);
}

.section-heading {
  display: grid;
  gap: 16px;
  margin-bottom: 28px;
}

.section-kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  color: var(--accent);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.section-kicker::before {
  content: '';
  width: 40px;
  height: 1px;
  background: rgba(201, 168, 76, 0.35);
}

.section-heading h2,
.split-head h2,
.cta-band h2 {
  max-width: 15ch;
  font-size: clamp(30px, 4vw, 54px);
}

.summary-grid,
.clarify-grid,
.contrast-grid,
.guide-grid {
  display: grid;
  gap: 18px;
}

.summary-grid,
.clarify-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.contrast-grid,
.guide-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.guide-grid.compact {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.summary-card,
.clarify-card,
.contrast-card {
  display: grid;
  gap: 16px;
  padding: 24px;
}

.summary-card-1,
.clarify-card.emphasis,
.contrast-card.emphasis {
  border-color: rgba(201, 168, 76, 0.36);
}

.summary-card-2 {
  margin-top: 28px;
}

.summary-card-3 {
  position: relative;
  margin-top: 10px;
}

.summary-card-3::before {
  content: '';
  position: absolute;
  left: 24px;
  top: 0;
  bottom: 24px;
  width: 1px;
  background: rgba(46, 41, 37, 0.9);
}

.summary-card-3 > * {
  position: relative;
  padding-left: 14px;
}

.summary-card h3,
.clarify-card h3,
.guide-card h3 {
  max-width: 16ch;
  font-size: clamp(26px, 2.5vw, 38px);
}

.summary-card p,
.clarify-card p,
.contrast-copy,
.split-body p,
.site-footer p,
.faq-item p,
.guide-card-copy p {
  margin: 0;
  color: var(--muted);
}

.guide-index {
  margin: 0;
  color: rgba(201, 168, 76, 0.74);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  line-height: 1;
}

.split {
  display: grid;
  gap: 44px;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  align-items: start;
}

.split.reverse .split-head {
  order: 2;
}

.split.reverse .split-body {
  order: 1;
}

.split-head {
  position: sticky;
  top: 108px;
}

.split-body {
  border-left: 1px solid rgba(46, 41, 37, 0.92);
  padding-left: 20px;
}

.split-body p + p {
  margin-top: 18px;
}

.bullet-list {
  display: grid;
  gap: 10px;
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}

.bullet-list li {
  position: relative;
  padding-left: 18px;
  color: var(--text);
}

.bullet-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 1px;
  background: var(--accent);
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  padding: 18px 20px;
  transition: border-color 180ms ease;
}

.faq-item:hover,
.faq-item[open] {
  border-color: rgba(201, 168, 76, 0.38);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  list-style: none;
  color: var(--text);
  font-size: 15px;
}

.faq-item summary::after {
  content: '▾';
  color: var(--muted);
  transition: transform 180ms ease;
}

.faq-item[open] summary::after {
  transform: rotate(180deg);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item p {
  margin-top: 12px;
  padding-right: 24px;
}

.guide-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 240px;
  padding: 22px;
  transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.guide-card:hover {
  transform: translateY(-3px);
  border-color: rgba(201, 168, 76, 0.44);
  background: linear-gradient(180deg, rgba(31, 27, 22, 0.98), rgba(20, 18, 16, 0.98));
}

.guide-card.compact {
  min-height: 0;
}

.guide-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.guide-card-action {
  color: var(--fine);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition: color 180ms ease;
}

.guide-card:hover .guide-card-action {
  color: var(--accent);
}

.guide-card-copy {
  display: grid;
  gap: 12px;
  max-width: 34ch;
}

.guide-card-footer {
  margin-top: auto;
  color: var(--accent);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: transform 180ms ease;
}

.guide-card:hover .guide-card-footer {
  transform: translateX(3px);
}

.cta-band {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
}

.site-footer {
  padding: 0 0 56px;
}

.site-footer p {
  border-top: 1px solid rgba(46, 41, 37, 0.92);
  padding-top: 20px;
  font-size: 13px;
}

@media (max-width: 1080px) {
  .hero,
  .split,
  .cta-band,
  .contrast-grid,
  .clarify-grid {
    grid-template-columns: 1fr;
  }

  .summary-grid,
  .guide-grid,
  .guide-grid.compact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-panel,
  .split-head {
    position: static;
  }

  .summary-card-2,
  .summary-card-3,
  .panel-list li:nth-child(2),
  .panel-list li:nth-child(3) {
    margin: 0;
  }

  .summary-card-3::before {
    display: none;
  }

  .summary-card-3 > * {
    padding-left: 0;
  }

  .panel-list li:nth-child(3) {
    padding-left: 38px;
  }
}

@media (max-width: 840px) {
  .nav-menu-toggle {
    display: inline-flex;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding-top: 14px;
  }

  .nav-menu[open] .nav-links {
    display: flex;
  }

  .nav-links a {
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 12px 14px;
    text-align: center;
    color: var(--text);
    background: var(--panel);
  }

  .nav-cta {
    width: 100%;
  }

  .hero-copy::before,
  .hero-copy::after {
    display: none;
  }

  .split-body {
    border-left: 0;
    padding-left: 0;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(calc(100% - 24px), var(--content));
  }

  .hero {
    padding: 44px 0 36px;
    gap: 24px;
  }

  .hub-hero h1,
  .guide-hero h1 {
    max-width: 100%;
    font-size: clamp(36px, 13vw, 58px);
  }

  .summary-grid,
  .clarify-grid,
  .guide-grid,
  .guide-grid.compact {
    grid-template-columns: 1fr;
  }

  .hero-panel,
  .summary-card,
  .contrast-card,
  .clarify-card,
  .faq-item,
  .guide-card {
    padding: 18px;
  }

  .guide-card {
    min-height: 0;
  }

  .cta-band {
    align-items: stretch;
  }

  .cta-band .button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .button,
  .guide-card,
  .faq-item summary::after {
    transition: none;
  }
}