/* ── RESET & BASE ── */
* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --ink: #0a0a0a;
  --paper: #ffffff;
  --accent: #b4552d;           /* terracotta */
  --rule: rgba(10, 10, 10, 0.16);
  --serif: 'EB Garamond', Georgia, serif;
  --sans: 'Karla', sans-serif;
  --arabic: 'Amiri', serif;
  --pad: clamp(16px, 4vw, 56px);
}

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(1rem, 0.9rem + 0.4vw, 1.15rem);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; }
em { font-style: italic; }
.ar { font-family: var(--arabic); font-size: 0.9em; opacity: 0.55; margin-inline-start: 0.4em; }
.dot { color: var(--accent); }

/* ── FIXED CHROME — mix-blend identity carried over from mtgrp.xyz ── */
/* NOTE: the links are fixed individually (no positioned wrapper) — a fixed
   parent forms a stacking context that would isolate the difference blend
   and render it invisible on white. */
#chrome a {
  position: fixed;
  top: 14px;
  z-index: 50;
  font-family: var(--sans);
  font-weight: 800;
  text-decoration: none;
  color: white;
  mix-blend-mode: difference;
  letter-spacing: -0.01em;
}
#chrome-mtgrp { left: var(--pad); font-size: 1.05rem; }
#chrome-mtgrp span { font-weight: 400; font-family: var(--serif); font-style: italic; font-size: 0.85rem; opacity: 0.7; }
#chrome-contact { right: var(--pad); font-size: 1.05rem; transition: opacity 0.15s; }
#chrome-contact:hover { opacity: 0.6; }

#progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 100%;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: 0 50%;
  z-index: 60;
}

/* ── SECTION LABEL ── */
.section-label {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  border-top: 1px solid var(--ink);
  padding-top: 10px;
  margin-bottom: clamp(28px, 5vh, 56px);
}

/* ── 01 HERO ── */
#hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: var(--pad);
  background:
    linear-gradient(var(--rule) 1px, transparent 1px) 0 0 / 100% 25vh,
    var(--paper);
}
.hero-inner { text-align: center; max-width: 1200px; }
.hero-kicker {
  font-style: italic;
  font-size: 0.95rem;
  margin-bottom: 2vh;
}
#hero-wordmark {
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(5rem, 22vw, 19rem);
  line-height: 0.85;
  letter-spacing: -0.04em;
  user-select: none;
  will-change: transform;
}
#hero-wordmark .arabic {
  font-family: var(--arabic);
  font-weight: 400;
  font-size: 0.42em;
  vertical-align: 0.28em;
  margin-inline-start: 0.12em;
  color: var(--accent);
}
.hero-tag {
  margin-top: 3.5vh;
  font-size: clamp(1.05rem, 1rem + 0.6vw, 1.45rem);
  line-height: 1.55;
}
.hero-scroll-hint {
  position: absolute;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--sans);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.5;
}

/* ── 02 STATEMENT ── */
#statement {
  padding: 28vh var(--pad);
  max-width: 1100px;
  margin: 0 auto;
}
.statement-text {
  font-size: clamp(1.6rem, 1rem + 3vw, 3.4rem);
  line-height: 1.3;
  font-style: italic;
}
body.js .statement-text .w { opacity: 0.12; display: inline-block; }

/* ── 03 SYSTEM — pinned pillars ── */
#system { position: relative; }
.system-pin {
  padding: calc(var(--pad) + 40px) var(--pad) var(--pad);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
body.js .system-pin {
  height: 100vh;
  height: 100svh;
}
.system-visual {
  position: absolute;
  top: 50%;
  right: var(--pad);
  transform: translateY(-50%);
  width: min(44vw, 520px);
  color: var(--ink);
  pointer-events: none;
}
.system-visual svg { width: 100%; height: auto; display: block; }
/* scatter fragments only exist for the JS choreography */
.axo-scatter { display: none; }
body.js .axo-scatter { display: block; }

.pillar {
  position: relative;
  padding: 8vh var(--pad);
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 1000px;
}
body.js .pillar {
  position: absolute;
  inset: 0 48% 0 0; /* text owns the left 52%; % padding against a max-width box collapses on wide screens */
  max-width: none;
  padding: 0 24px 0 var(--pad);
  visibility: hidden;
}
.pillar-index {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(4rem, 10vw, 8rem);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--rule);
  position: absolute;
  left: var(--pad);
  bottom: 5vh;
  z-index: -1;
}
.pillar h2 {
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(2.6rem, 6.5vw, 5.5rem);
  letter-spacing: -0.03em;
  line-height: 0.95;
  margin-bottom: 3vh;
}
.pillar p {
  font-size: clamp(1.05rem, 1rem + 0.5vw, 1.4rem);
  max-width: 30em;
}

/* ── 04 TIMELINE ── */
#timeline { padding: 18vh var(--pad); max-width: 1300px; margin: 0 auto; }
.timeline-title {
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(2rem, 1.2rem + 4vw, 4.5rem);
  letter-spacing: -0.03em;
  line-height: 1.02;
  margin-bottom: clamp(40px, 8vh, 90px);
}
.timeline-title em { font-family: var(--serif); font-weight: 500; color: var(--accent); }

.tl-row {
  display: grid;
  grid-template-columns: minmax(110px, 200px) 1fr;
  gap: 16px;
  align-items: center;
  padding: 18px 0;
  border-top: 1px solid var(--rule);
}
.tl-stage { font-family: var(--sans); font-weight: 700; font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.12em; }
.tl-bars { display: flex; flex-direction: column; gap: 8px; }
.tl-bar { display: flex; align-items: center; gap: 12px; }
.tl-bar i {
  display: block;
  height: 14px;
  border-radius: 7px;
  transform-origin: 0 50%;
  flex: 0 0 auto;
}
body.js .tl-bar i { transform: scaleX(0); }
.tl-old i { background: var(--rule); width: calc(var(--v) * 2.2%); }
.tl-new i { background: var(--accent); width: calc(var(--v) * 2.2%); }
.tl-bar b { font-family: var(--sans); font-weight: 700; font-size: 0.82rem; white-space: nowrap; }
.tl-old b { color: rgba(10,10,10,0.55); }
body.js .tl-bar b { opacity: 0; }

.tl-total {
  display: flex;
  gap: clamp(30px, 8vw, 120px);
  margin-top: clamp(48px, 9vh, 100px);
  flex-wrap: wrap;
}
.tl-total-label { font-style: italic; display: block; margin-bottom: 6px; }
.tl-total-num {
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(4rem, 3rem + 8vw, 11rem);
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--ink);
}
.tl-total-bayt .tl-total-num { color: var(--accent); -webkit-text-stroke: 0; }
.tl-total-num small {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 1.1rem;
  letter-spacing: 0;
  color: var(--ink);
  -webkit-text-stroke: 0;
  margin-left: 10px;
}

/* ── 05 HOUSES — horizontal scroll ── */
#houses { position: relative; }
.houses-pin {
  height: 100vh;
  height: 100svh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.houses-label { margin: 0 var(--pad) clamp(20px, 4vh, 44px); }
.houses-track {
  display: flex;
  gap: clamp(20px, 3vw, 48px);
  padding: 0 var(--pad);
  width: max-content;
  will-change: transform;
}
.house {
  width: min(78vw, 620px);
  flex: 0 0 auto;
  border: 1px solid var(--ink);
  padding: clamp(20px, 3vw, 40px);
  display: flex;
  flex-direction: column;
  gap: 20px;
  background: var(--paper);
}
.house-fig svg { width: 100%; height: auto; display: block; color: var(--ink); }
.house h3 {
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(2rem, 1.4rem + 2.5vw, 3.4rem);
  letter-spacing: -0.02em;
  line-height: 1;
}
.house-sub { margin-top: 10px; max-width: 30em; }
.house-specs {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
  font-size: 0.9rem;
}
.house-specs b { font-family: var(--sans); font-weight: 800; margin-right: 4px; }
.house-cta { justify-content: center; border-color: var(--accent); }
.house-cta h3 { color: var(--accent); }

/* ── BUTTONS ── */
.btn {
  display: inline-block;
  margin-top: 22px;
  font-family: var(--sans);
  font-weight: 800;
  text-decoration: none;
  border: 1.5px solid var(--ink);
  padding: 12px 22px;
  border-radius: 999px;
  transition: background 0.2s, color 0.2s;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn-big { font-size: clamp(1rem, 0.9rem + 0.8vw, 1.4rem); padding: 16px 34px; }

/* ── 06 PROCESS ── */
#process { padding: 18vh var(--pad); max-width: 1100px; margin: 0 auto; }
.steps { list-style: none; }
.step {
  display: grid;
  grid-template-columns: minmax(70px, 120px) 1fr;
  gap: 18px;
  padding: clamp(22px, 4vh, 40px) 0;
  border-top: 1px solid var(--rule);
}
.step-num {
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(1.6rem, 1.2rem + 1.5vw, 2.6rem);
  line-height: 1;
  color: var(--accent);
}
.step h3 { font-family: var(--sans); font-weight: 800; font-size: 1.15rem; margin-bottom: 6px; }
.step p { max-width: 36em; }

/* ── 07 PARTNERS ── */
#partners { padding: 14vh 0 18vh; }
#partners .section-label, .partners-intro, .partners-note { margin-left: var(--pad); margin-right: var(--pad); }
.partners-intro { font-size: clamp(1.2rem, 1rem + 1.4vw, 2rem); font-style: italic; max-width: 26em; margin-bottom: 7vh; }
.marquee { overflow: hidden; border-block: 1px solid var(--ink); padding: 18px 0; }
.marquee-track {
  display: flex;
  gap: 34px;
  width: max-content;
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(1.1rem, 1rem + 1vw, 1.7rem);
  white-space: nowrap;
  animation: marquee 28s linear infinite;
}
@keyframes marquee { to { transform: translateX(-50%); } }
.partners-note { margin-top: 5vh; font-size: 0.95rem; }

/* ── 08 CTA / FOOTER ── */
#cta {
  background: var(--ink);
  color: var(--paper);
  padding: 18vh var(--pad) 8vh;
  text-align: center;
}
.cta-big {
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(2.6rem, 1.6rem + 6.5vw, 7.5rem);
  letter-spacing: -0.035em;
  line-height: 1;
}
.cta-big span { display: block; }
.cta-big em { font-family: var(--serif); font-weight: 500; color: var(--accent); }
#cta .btn { border-color: var(--paper); color: var(--paper); margin-top: 6vh; }
#cta .btn:hover { background: var(--paper); color: var(--ink); }
.footer-meta {
  margin-top: 12vh;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.85rem;
  opacity: 0.75;
}
.footer-cities { font-style: italic; letter-spacing: 0.06em; }

/* ── REVEAL DEFAULTS (JS animates; keep visible if JS fails) ── */
.reveal { opacity: 1; }

/* ── MOBILE ── */
@media (max-width: 768px) {
  .pillar-index { display: none; }
  .system-visual {
    top: 88px;
    left: 50%;
    right: auto;
    transform: translateX(-50%);
    width: min(80vw, 340px);
  }
  body.js .pillar {
    inset: 0;
    padding: 0 var(--pad) 9vh;
    justify-content: flex-end;
  }
  .pillar p { font-size: 1rem; }
  .tl-row { grid-template-columns: 1fr; gap: 8px; }
  .tl-old i, .tl-new i { height: 10px; width: calc(var(--v) * 1.7%); }
  .tl-bar b { font-size: 0.72rem; }
  .house { width: 84vw; }
  .step { grid-template-columns: 56px 1fr; }
}

/* ── REDUCED MOTION ── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .marquee-track { animation: none; }
  .statement-text .w { opacity: 1; }
  .tl-bar i { transform: none; }
  .tl-bar b { opacity: 1; }
}