/* ============================================================
   THE CAPITAL CUBE — shared design system
   9 categories × 1 face × 6 pages = one cube
   ============================================================ */

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { min-height: 100vh; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; background: none; border: none; color: inherit; }

/* Tokens */
:root {
  --ink: #0E1014;
  --graphite: #1F2228;
  --paper: #F5F1E8;
  --coral: #E8533D;
  --sand: #D4C9B0;
  --ocean: #2A4A55;
  --bone: #FFFFFF;

  --rule: rgba(14, 16, 20, 0.12);
  --rule-strong: rgba(14, 16, 20, 0.28);
  --rule-light: rgba(245, 241, 232, 0.14);

  --font-display: 'Fraunces', 'Old Standard TT', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, monospace;

  --ease: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-out: cubic-bezier(0.2, 0.7, 0.3, 1);

  --w: min(1400px, 92vw);

  --t-micro: 200ms;
  --t-comp: 600ms;
  --t-page: 1200ms;
}

body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.5;
  font-feature-settings: 'ss01', 'cv11';
}

::selection { background: var(--coral); color: var(--paper); }

/* Type scale */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
  opacity: 0.65;
}
.eyebrow.on-dark { color: var(--paper); opacity: 0.6; }

.display-xl {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(56px, 9vw, 168px);
  line-height: 0.92;
  letter-spacing: -0.035em;
  font-variation-settings: 'opsz' 144, 'SOFT' 50, 'WONK' 0;
}
.display-xl em {
  font-style: italic;
  font-weight: 400;
  font-variation-settings: 'opsz' 144, 'SOFT' 100, 'WONK' 1;
}

.display-l {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(40px, 5.6vw, 96px);
  line-height: 0.95;
  letter-spacing: -0.025em;
  font-variation-settings: 'opsz' 96, 'SOFT' 50;
}
.display-l em { font-style: italic; font-variation-settings: 'opsz' 96, 'SOFT' 100, 'WONK' 1; }

.display-m {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(28px, 3.6vw, 56px);
  line-height: 1.02;
  letter-spacing: -0.015em;
  font-variation-settings: 'opsz' 48, 'SOFT' 50;
}
.display-m em { font-style: italic; font-variation-settings: 'opsz' 48, 'SOFT' 100, 'WONK' 1; }

.lead {
  font-family: var(--font-body);
  font-size: clamp(16px, 1.2vw, 19px);
  line-height: 1.55;
  font-weight: 400;
  letter-spacing: -0.005em;
  max-width: 56ch;
}

.body { font-size: 15px; line-height: 1.6; }

.mono { font-family: var(--font-mono); letter-spacing: 0.04em; }
.mono-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

/* Layout */
.wrap { width: var(--w); margin: 0 auto; }

.section { padding: clamp(80px, 10vw, 160px) 0; position: relative; }
.section--dark { background: var(--ink); color: var(--paper); }
.section--ocean { background: var(--ocean); color: var(--paper); }
.section--paper { background: var(--paper); color: var(--ink); }

/* The Cube Grid: 3×3 modular */
.cube-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rule);
}
.cube-grid--dark { background: var(--rule-light); }

.cube-tile {
  background: var(--paper);
  padding: clamp(24px, 2.6vw, 44px);
  position: relative;
  overflow: hidden;
  transition: background var(--t-comp) var(--ease);
}
.cube-grid--dark .cube-tile { background: var(--ink); }

.cube-tile--span2 { grid-column: span 2; }
.cube-tile--row2 { grid-row: span 2; }
.cube-tile--full { grid-column: span 3; }

/* Header / Nav */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  background: rgba(245, 241, 232, 0.88);
  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
  border-bottom: 1px solid var(--rule);
  transition: background var(--t-comp) var(--ease);
}
.header__wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.header__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 40px;
}
.header__brand img {
  height: 32px;
  width: auto;
  transition: opacity var(--t-comp) var(--ease);
}
.header__brand:hover img { opacity: 0.78; }
.header__cube-mark {
  width: 22px; height: 22px;
  position: relative;
  perspective: 80px;
  flex-shrink: 0;
}
.header__cube-mark > div {
  position: absolute;
  inset: 0;
  border: 1.5px solid var(--ink);
  background: var(--paper);
  transform-style: preserve-3d;
  animation: header-tumble 12s linear infinite;
}
@keyframes header-tumble {
  0%, 100% { transform: rotateX(0deg) rotateY(0deg); }
  25% { transform: rotateX(0deg) rotateY(90deg); }
  50% { transform: rotateX(90deg) rotateY(180deg); }
  75% { transform: rotateX(0deg) rotateY(270deg); }
}

.nav { display: flex; align-items: center; gap: 4px; }
.nav__link {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  padding: 10px 16px;
  letter-spacing: -0.005em;
  position: relative;
  transition: color var(--t-micro) var(--ease);
}
.nav__link::after {
  content: '';
  position: absolute;
  left: 16px; right: 16px; bottom: 6px;
  height: 1px;
  background: var(--coral);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-comp) var(--ease);
}
.nav__link:hover::after, .nav__link[aria-current="page"]::after { transform: scaleX(1); }
.nav__cta {
  margin-left: 12px;
  background: var(--ink);
  color: var(--paper);
  padding: 12px 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition: all var(--t-micro) var(--ease);
}
.nav__cta:hover { background: var(--coral); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  transition: all var(--t-comp) var(--ease);
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn--primary { background: var(--ink); color: var(--paper); }
.btn--primary:hover { background: var(--coral); border-color: var(--coral); color: var(--paper); }
.btn--coral { background: var(--coral); color: var(--paper); border-color: var(--coral); }
.btn--coral:hover { background: var(--ink); border-color: var(--ink); }
.btn--ghost.on-dark { color: var(--paper); border-color: var(--paper); }
.btn--ghost.on-dark:hover { background: var(--paper); color: var(--ink); }

.btn .arrow {
  width: 18px; height: 1px;
  background: currentColor;
  position: relative;
  transition: transform var(--t-comp) var(--ease);
}
.btn .arrow::after {
  content: '';
  position: absolute;
  right: 0; top: -3px;
  width: 7px; height: 7px;
  border-top: 1px solid currentColor;
  border-right: 1px solid currentColor;
  transform: rotate(45deg);
}
.btn:hover .arrow { transform: translateX(4px); }

/* Footer */
.footer {
  background: var(--ink);
  color: var(--paper);
  padding: 64px 0 32px;
  border-top: 1px solid var(--rule-light);
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--rule-light);
}
.footer__col h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.6;
  margin-bottom: 20px;
  font-weight: 500;
}
.footer__col p, .footer__col a { font-size: 14px; line-height: 1.7; opacity: 0.86; }
.footer__col a:hover { color: var(--coral); opacity: 1; }
.footer__bottom {
  display: flex; justify-content: space-between; padding-top: 32px;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.5;
}
.footer__big {
  font-family: var(--font-display);
  font-size: clamp(60px, 12vw, 200px);
  line-height: 0.85;
  letter-spacing: -0.04em;
  font-variation-settings: 'opsz' 144, 'SOFT' 100;
  margin: 100px 0 40px;
  opacity: 0.96;
}
.footer__big em { font-style: italic; color: var(--coral); font-variation-settings: 'opsz' 144, 'SOFT' 100, 'WONK' 1; }

.footer__logo {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--rule-light);
}
.footer__logo img {
  width: auto;
  height: 48px;
  opacity: 0.96;
}
.footer__logo-meta {
  display: flex;
  align-items: center;
  gap: 24px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.55;
}
.footer__logo-meta em {
  font-style: italic;
  font-family: var(--font-display);
  text-transform: none;
  letter-spacing: -0.015em;
  font-size: 18px;
  font-variation-settings: 'opsz' 48, 'SOFT' 100, 'WONK' 1;
  color: var(--coral);
  opacity: 1;
}

/* Section title pattern */
.sec-title {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
  align-items: end;
  padding-bottom: 56px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 56px;
}
.section--dark .sec-title { border-bottom-color: var(--rule-light); }
.sec-title__index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.55;
}
.sec-title__name {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 80px);
  line-height: 0.95;
  letter-spacing: -0.025em;
  font-variation-settings: 'opsz' 96, 'SOFT' 50;
}
.sec-title__name em { font-style: italic; font-variation-settings: 'opsz' 96, 'SOFT' 100, 'WONK' 1; }

/* Numbers strip */
.numbers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--rule);
  margin-top: 80px;
}
.numbers--3 { grid-template-columns: repeat(3, 1fr); }
.numbers--dark { background: var(--rule-light); }
.section--dark .numbers, .manifesto .numbers { background: var(--rule-light); }
.numbers__cell {
  background: var(--paper);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.numbers--dark .numbers__cell,
.section--dark .numbers__cell,
.manifesto .numbers__cell { background: var(--ink); color: var(--paper); }
.numbers__big {
  font-family: var(--font-display);
  font-size: clamp(48px, 6vw, 88px);
  line-height: 0.92;
  letter-spacing: -0.025em;
  font-variation-settings: 'opsz' 96, 'SOFT' 50;
}
.numbers__big em {
  font-style: italic;
  color: var(--coral);
  font-variation-settings: 'opsz' 96, 'SOFT' 100, 'WONK' 1;
}
.numbers__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.55;
  margin-top: auto;
}
.numbers__sub {
  font-size: 13px;
  line-height: 1.45;
  opacity: 0.75;
  margin-top: 12px;
  max-width: 28ch;
}

/* Page rotate transition (entry) */
@keyframes face-in {
  0% { opacity: 0; transform: perspective(1200px) rotateY(-22deg) translateY(20px); }
  100% { opacity: 1; transform: perspective(1200px) rotateY(0deg) translateY(0); }
}
.face-in { animation: face-in 1000ms var(--ease) both; }
.face-in--d1 { animation-delay: 100ms; }
.face-in--d2 { animation-delay: 200ms; }
.face-in--d3 { animation-delay: 300ms; }

@keyframes rise {
  0% { opacity: 0; transform: translateY(28px); }
  100% { opacity: 1; transform: translateY(0); }
}
.rise { opacity: 0; animation: rise 800ms var(--ease) both; }
.rise.in-view { opacity: 1; }

/* Focus ring */
:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 4px;
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* ============================================================
   MOBILE NAV SYSTEM
   ============================================================ */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  position: relative;
}
/* When drawer is open, lift the toggle above the drawer (it lives inside <header>
   which is its own stacking context — make it position:fixed on mobile to escape) */
@media (max-width: 900px) {
  .nav-toggle { position: fixed; top: 16px; right: 16px; z-index: 120; }
}
.nav-toggle__lines {
  position: relative;
  width: 26px;
  height: 16px;
}
.nav-toggle__lines span {
  position: absolute;
  left: 0;
  width: 26px;
  height: 2px;
  background: var(--ink);
  transition: transform 360ms var(--ease), opacity 200ms var(--ease);
}
.nav-toggle__lines span:nth-child(1) { top: 0; }
.nav-toggle__lines span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.nav-toggle__lines span:nth-child(3) { bottom: 0; }
[data-nav-open] .nav-toggle__lines span { background: var(--paper); }
[data-nav-open] .nav-toggle__lines span:nth-child(1) {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
}
[data-nav-open] .nav-toggle__lines span:nth-child(2) {
  opacity: 0;
}
[data-nav-open] .nav-toggle__lines span:nth-child(3) {
  bottom: auto;
  top: 50%;
  transform: translateY(-50%) rotate(-45deg);
}

/* Drawer */
.nav-drawer {
  position: fixed;
  inset: 0;
  background: var(--ink);
  color: var(--paper);
  z-index: 105;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-20px);
  transition: opacity var(--t-comp) var(--ease), transform var(--t-comp) var(--ease);
  display: flex;
  flex-direction: column;
  padding: 92px 28px 32px;
  overflow-y: auto;
}
[data-nav-open] .nav-drawer {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.nav-drawer__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
  flex: 1;
  margin: 0;
  padding: 0;
}
.nav-drawer__list li {
  border-bottom: 1px solid var(--rule-light);
}
.nav-drawer__list li:first-child { border-top: 1px solid var(--rule-light); }
.nav-drawer__link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 22px 0;
  font-family: var(--font-display);
  font-size: 36px;
  line-height: 1;
  letter-spacing: -0.025em;
  font-variation-settings: 'opsz' 96, 'SOFT' 50;
  color: var(--paper);
  transition: color var(--t-comp) var(--ease);
}
.nav-drawer__link:hover, .nav-drawer__link:focus-visible {
  color: var(--coral);
}
.nav-drawer__link[aria-current="page"] { color: var(--coral); font-style: italic; font-variation-settings: 'opsz' 96, 'SOFT' 100, 'WONK' 1; }
.nav-drawer__link-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.4;
  font-style: normal;
  font-variation-settings: normal;
}
.nav-drawer__cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--coral);
  color: var(--paper);
  padding: 22px 24px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-top: 32px;
  margin-bottom: 16px;
  transition: background var(--t-comp) var(--ease);
}
.nav-drawer__cta:hover { background: var(--paper); color: var(--ink); }
.nav-drawer__foot {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.55;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.nav-drawer__foot a:hover { color: var(--coral); }

/* Body lock when drawer open */
html[data-nav-open], html[data-nav-open] body { overflow: hidden; }

/* ============================================================
   MOBILE LAYOUT
   ============================================================ */
@media (max-width: 900px) {
  .nav { display: none; }
  .nav-toggle { display: inline-flex; }
  .header { padding: 12px 0; }
  .header__brand img { height: 24px; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .numbers, .numbers--3 { grid-template-columns: repeat(2, 1fr); }
  .numbers__cell { padding: 22px 18px; }
  .numbers__big { font-size: clamp(36px, 10vw, 58px); }
  .sec-title { grid-template-columns: 1fr; gap: 16px; padding-bottom: 22px; margin-bottom: 24px; }
  .sec-title__name { font-size: clamp(28px, 8vw, 48px); }
  .section { padding: clamp(40px, 7vw, 56px) 0; }
  .cube-grid { grid-template-columns: 1fr; }
  .cube-tile--span2, .cube-tile--full { grid-column: auto; }
  .footer__logo { flex-direction: column; align-items: flex-start; gap: 14px; margin-bottom: 24px; padding-bottom: 20px; }
  .footer__logo img { height: 44px; }
  .footer__logo-meta { flex-direction: column; align-items: flex-start; gap: 6px; }
  .footer__bottom { flex-direction: column; gap: 8px; align-items: flex-start; }
  .footer { padding: 40px 0 24px; }
  .btn { padding: 12px 16px; font-size: 10.5px; }
}

@media (max-width: 700px) {
  .footer__grid { grid-template-columns: 1fr; gap: 22px; }
}