/* =========================================================================
   SARRA IBRAHIM — Atelier numérique
   Système visuel partagé
   ========================================================================= */

:root {
  --paper: #f1e9d7;
  --paper-2: #e8dec4;
  --paper-3: #ddd1b1;
  --ink: #1c140e;
  --ink-2: #4a3a2c;
  --ink-3: #7a6a55;
  --gold: #b89060;
  --gold-2: #c9a267;
  --gold-deep: #8b6635;
  --wine: #5b2a26;
  --line: rgba(28, 20, 14, 0.16);
  --line-2: rgba(28, 20, 14, 0.08);

  --serif: "Marcellus", "Cormorant Garamond", "Times New Roman", serif;
  --italic: "Cormorant Garamond", "Times New Roman", serif;
  --sans: "Jost", -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, monospace;

  --max: 1440px;
  --gutter: clamp(20px, 4vw, 56px);
}

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

html,
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  overflow-x: hidden;
  cursor: none;
}

/* Paper grain — subtle SVG noise */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.35;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.11  0 0 0 0 0.08  0 0 0 0 0.05  0 0 0 0.08 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

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

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: none;
}

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

/* =========================================================================
   TYPOGRAPHIE
   ========================================================================= */

.eyebrow {
  font-family: var(--italic);
  font-style: italic;
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--ink-2);
}

.label {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.numeral {
  font-family: var(--serif);
  font-size: 14px;
  color: var(--gold-deep);
  letter-spacing: 0.05em;
}

h1,
h2,
h3,
h4 {
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.04;
  letter-spacing: -0.005em;
  color: var(--ink);
}

h1 {
  font-size: clamp(56px, 9vw, 168px);
}

h2 {
  font-size: clamp(40px, 6vw, 96px);
}

h3 {
  font-size: clamp(28px, 3.4vw, 52px);
}

h4 {
  font-size: clamp(22px, 2vw, 32px);
}

.display-italic {
  font-family: var(--italic);
  font-style: italic;
  font-weight: 400;
}

p {
  color: var(--ink-2);
  font-size: 16px;
  font-weight: 300;
  max-width: 62ch;
  text-wrap: pretty;
}

.lead {
  font-size: clamp(18px, 1.4vw, 22px);
  line-height: 1.5;
  color: var(--ink);
}

/* =========================================================================
   LAYOUT
   ========================================================================= */

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
  position: relative;
}

.rule {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 0;
}

.rule-gold {
  border: 0;
  border-top: 1px solid var(--gold);
  margin: 0;
}

.section {
  position: relative;
  padding: clamp(80px, 11vh, 160px) 0;
}

.section-head {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: clamp(24px, 4vw, 64px);
  align-items: end;
  padding-bottom: clamp(40px, 6vh, 80px);
}

.section-head .label-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.section-head .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
}

@media (max-width: 760px) {
  .section-head {
    grid-template-columns: 1fr;
    align-items: start;
  }
}

/* =========================================================================
   TOP BAR + NAV
   ========================================================================= */

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  padding: 18px var(--gutter);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  background: linear-gradient(
    to bottom,
    rgba(241, 233, 215, 0.92),
    rgba(241, 233, 215, 0)
  );
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: padding 0.3s ease;
}

.topbar.scrolled {
  padding-top: 12px;
  padding-bottom: 12px;
  background: rgba(241, 233, 215, 0.96);
  border-bottom: 1px solid var(--line-2);
}

.brand {
  font-family: var(--serif);
  font-size: 18px;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand .crest {
  width: 22px;
  height: 22px;
  border: 1px solid var(--gold);
  display: grid;
  place-items: center;
  font-family: var(--italic);
  font-style: italic;
  font-size: 13px;
  color: var(--gold-deep);
  border-radius: 50%;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 3vw, 38px);
  justify-content: center;
}

.nav a {
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 400;
  position: relative;
  padding: 6px 0;
  color: var(--ink);
}

.nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--gold);
  transition: width 0.4s cubic-bezier(0.2, 0.8, 0.2, 1),
    left 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.nav a:hover::after,
.nav a.is-active::after {
  width: 100%;
  left: 0;
}

.nav a.is-active {
  color: var(--gold-deep);
}

.top-right {
  display: flex;
  align-items: center;
  gap: 18px;
  justify-content: flex-end;
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.lang-toggle button {
  padding: 4px 6px;
  color: var(--ink-3);
  transition: color 0.25s;
  font-size: 12px;
  letter-spacing: 0.18em;
}

.lang-toggle button.is-active {
  color: var(--ink);
  border-bottom: 1px solid var(--gold);
}

.lang-toggle .sep {
  color: var(--ink-3);
  opacity: 0.5;
}

.nav-link-cta {
  border: 1px solid var(--ink);
  padding: 10px 18px !important;
  border-radius: 999px;
  transition: background 0.3s, color 0.3s;
}

.nav-link-cta:hover {
  background: var(--ink);
  color: var(--paper) !important;
}

.nav-link-cta::after {
  display: none;
}

/* Mobile nav */
.menu-toggle {
  display: none;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
}

.menu-toggle span {
  width: 22px;
  height: 1px;
  background: var(--ink);
  position: relative;
}

.menu-toggle span::before,
.menu-toggle span::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 1px;
  background: var(--ink);
  left: 0;
}

.menu-toggle span::before {
  top: -6px;
}

.menu-toggle span::after {
  top: 6px;
}

@media (max-width: 880px) {
  .topbar {
    grid-template-columns: 1fr auto;
  }
  .nav {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
  .top-right {
    display: none;
  }
}

/* =========================================================================
   CUSTOM CURSOR
   ========================================================================= */

.cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold-deep);
  pointer-events: none;
  z-index: 1000;
  transform: translate(-50%, -50%);
  transition: width 0.25s ease, height 0.25s ease, background 0.25s ease;
  mix-blend-mode: multiply;
}

.cursor-ring {
  position: fixed;
  top: 0;
  left: 0;
  width: 38px;
  height: 38px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  pointer-events: none;
  z-index: 999;
  transform: translate(-50%, -50%);
  transition: transform 0.15s ease-out, width 0.25s ease, height 0.25s ease,
    border-color 0.25s ease;
}

.cursor.is-hover {
  width: 0;
  height: 0;
}

.cursor-ring.is-hover {
  width: 64px;
  height: 64px;
  border-color: var(--gold-deep);
}

.cursor-ring.is-text {
  width: 4px;
  height: 28px;
  border-radius: 0;
  border-left: 1px solid var(--ink);
  border-top: 0;
  border-right: 0;
  border-bottom: 0;
}

@media (hover: none), (pointer: coarse) {
  body {
    cursor: auto;
  }
  .cursor,
  .cursor-ring {
    display: none;
  }
}

/* =========================================================================
   BUTTONS
   ========================================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 26px;
  border-radius: 999px;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
  transition: transform 0.3s, background 0.3s, color 0.3s, border-color 0.3s;
  border: 1px solid currentColor;
  position: relative;
  overflow: hidden;
}

.btn .arr {
  width: 18px;
  height: 1px;
  background: currentColor;
  position: relative;
  transition: width 0.3s;
}

.btn .arr::after {
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  border-top: 1px solid currentColor;
  border-right: 1px solid currentColor;
  transform: translateY(-50%) rotate(45deg);
}

.btn-ink {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.btn-ink:hover {
  background: var(--gold-deep);
  border-color: var(--gold-deep);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
}

.btn-ghost:hover {
  background: var(--ink);
  color: var(--paper);
}

.btn:hover .arr {
  width: 28px;
}

/* =========================================================================
   MARQUEE
   ========================================================================= */

.marquee {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  padding: 22px 0;
}

.marquee-track {
  display: flex;
  width: max-content;
  gap: 60px;
  animation: marq 38s linear infinite;
}

.marquee-track > span {
  font-family: var(--serif);
  font-size: clamp(32px, 4.4vw, 64px);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 60px;
}

.marquee-track .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
  display: inline-block;
}

.marquee-track .ital {
  font-family: var(--italic);
  font-style: italic;
  color: var(--gold-deep);
}

@keyframes marq {
  to {
    transform: translateX(-50%);
  }
}

.marquee:hover .marquee-track {
  animation-play-state: paused;
}

/* =========================================================================
   SCROLL REVEAL
   ========================================================================= */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 1s cubic-bezier(0.2, 0.6, 0.2, 1),
    transform 1s cubic-bezier(0.2, 0.6, 0.2, 1);
}

.reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}

.reveal-stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.9s cubic-bezier(0.2, 0.6, 0.2, 1),
    transform 0.9s cubic-bezier(0.2, 0.6, 0.2, 1);
}

.reveal-stagger.is-in > * {
  opacity: 1;
  transform: translateY(0);
}

.reveal-stagger.is-in > *:nth-child(1) {
  transition-delay: 0.05s;
}
.reveal-stagger.is-in > *:nth-child(2) {
  transition-delay: 0.15s;
}
.reveal-stagger.is-in > *:nth-child(3) {
  transition-delay: 0.25s;
}
.reveal-stagger.is-in > *:nth-child(4) {
  transition-delay: 0.35s;
}
.reveal-stagger.is-in > *:nth-child(5) {
  transition-delay: 0.45s;
}
.reveal-stagger.is-in > *:nth-child(6) {
  transition-delay: 0.55s;
}

/* Reveal lines for big serif headings */
.line-reveal {
  display: block;
  overflow: hidden;
}
.line-reveal > span {
  display: inline-block;
  transform: translateY(110%);
  transition: transform 1.1s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.is-in .line-reveal > span,
.line-reveal.is-in > span {
  transform: translateY(0);
}

/* =========================================================================
   PAGE TRANSITION CURTAIN
   ========================================================================= */

.curtain {
  position: fixed;
  inset: 0;
  background: var(--ink);
  z-index: 9999;
  transform: scaleY(0);
  transform-origin: bottom;
  pointer-events: none;
  display: grid;
  place-items: center;
}

.curtain-mark {
  font-family: var(--serif);
  color: var(--paper);
  font-size: 48px;
  opacity: 0;
  letter-spacing: 0.04em;
}

.curtain-mark em {
  font-family: var(--italic);
  font-style: italic;
  color: var(--gold-2);
}

.curtain.enter {
  animation: curtainEnter 1.1s cubic-bezier(0.7, 0, 0.2, 1) forwards;
}
.curtain.leave {
  animation: curtainLeave 1.1s cubic-bezier(0.7, 0, 0.2, 1) forwards;
}
.curtain.enter .curtain-mark {
  animation: curtainMark 1s ease forwards;
}

@keyframes curtainEnter {
  0% {
    transform: scaleY(0);
    transform-origin: bottom;
  }
  100% {
    transform: scaleY(1);
    transform-origin: bottom;
  }
}

@keyframes curtainLeave {
  0% {
    transform: scaleY(1);
    transform-origin: top;
  }
  100% {
    transform: scaleY(0);
    transform-origin: top;
  }
}

@keyframes curtainMark {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  40%,
  60% {
    opacity: 1;
    transform: translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateY(-12px);
  }
}

/* =========================================================================
   FOOTER (shared)
   ========================================================================= */

.footer {
  background: var(--ink);
  color: var(--paper);
  padding: 100px var(--gutter) 36px;
  position: relative;
  z-index: 2;
}

.footer ::selection {
  background: var(--paper);
  color: var(--ink);
}

.footer h3 {
  color: var(--paper);
  font-size: clamp(48px, 7vw, 104px);
  line-height: 1;
  letter-spacing: -0.01em;
}

.footer h3 em {
  font-family: var(--italic);
  font-style: italic;
  color: var(--gold-2);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-top: 80px;
  padding-top: 40px;
  border-top: 1px solid rgba(241, 233, 215, 0.18);
}

.footer-grid h5 {
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold-2);
  margin-bottom: 18px;
  font-weight: 500;
}

.footer-grid a,
.footer-grid p {
  color: rgba(241, 233, 215, 0.75);
  font-size: 14px;
  line-height: 1.9;
  display: block;
  transition: color 0.2s;
}

.footer-grid a:hover {
  color: var(--gold-2);
}

.footer-bottom {
  margin-top: 60px;
  padding-top: 24px;
  border-top: 1px solid rgba(241, 233, 215, 0.12);
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: rgba(241, 233, 215, 0.55);
  letter-spacing: 0.05em;
}

@media (max-width: 760px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }
}

/* =========================================================================
   UTILITIES
   ========================================================================= */

.hidden {
  display: none !important;
}

.gold {
  color: var(--gold-deep);
}

.ital {
  font-family: var(--italic);
  font-style: italic;
}

.serif {
  font-family: var(--serif);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.3);
  color: var(--ink-2);
}

/* Hairline corner brackets */
.brackets {
  position: relative;
}
.brackets::before,
.brackets::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border-color: var(--gold);
}
.brackets::before {
  top: 0;
  left: 0;
  border-top: 1px solid;
  border-left: 1px solid;
}
.brackets::after {
  bottom: 0;
  right: 0;
  border-bottom: 1px solid;
  border-right: 1px solid;
}