/* ============================================================
   Fekrah — فكرة  ·  "Dark Room, One Spark"
   A deep, product-grade dark canvas where the warm Fekrah
   lightbulb is the single light source. Dependency-free.
   ============================================================ */

:root {
  /* Surfaces */
  --bg: #0A0A0F;
  --bg-elevated: #0E0E15;
  --surface: #13131C;
  --surface-2: #15151F;
  --surface-glass: rgba(255, 255, 255, 0.03);
  --surface-glass-strong: rgba(255, 255, 255, 0.055);
  --inset-panel: #0E0E15;

  /* Text */
  --text: #EDEDF2;
  --text-muted: #B4B4C4;
  --text-faint: #9A9AAB;
  --ink-on-accent: #0A0A0F;

  /* Lines */
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --border-faint: rgba(255, 255, 255, 0.045);
  --inner-highlight: inset 0 1px 0 rgba(255, 255, 255, 0.06);

  /* Warm spark (emitted light only) */
  --accent: #FFB454;
  --accent-2: #FF7A18;
  --accent-tint-10: rgba(255, 180, 84, 0.10);
  --accent-tint-16: rgba(255, 180, 84, 0.16);
  --accent-glow: rgba(255, 150, 40, 0.35);

  --grad-warm: linear-gradient(110deg, #FFB454 0%, #FF7A18 100%);
  --grad-warm-text: linear-gradient(110deg, #FFD79A 0%, #FFB454 45%, #FF7A18 100%);
  --grad-glass: linear-gradient(180deg, rgba(255,255,255,0.06) 0%, rgba(255,255,255,0.015) 100%);

  --mesh-radial: radial-gradient(60% 50% at 50% 0%, rgba(255,150,40,0.18) 0%, rgba(255,120,24,0.07) 35%, rgba(10,10,15,0) 70%);
  --mesh-conic: conic-gradient(from 210deg at 50% 40%, rgba(123,97,255,0.10), rgba(255,150,40,0.14), rgba(46,196,182,0.08), rgba(123,97,255,0.10));

  --shadow-soft: 0 8px 30px rgba(0,0,0,0.45);
  --shadow-slab: 0 24px 60px -20px rgba(0,0,0,0.6);
  --shadow-glow-warm: 0 8px 24px rgba(255,122,24,0.28), 0 0 0 1px rgba(255,180,84,0.18);
  --shadow-glow-warm-hover: 0 12px 34px rgba(255,122,24,0.42), 0 0 0 1px rgba(255,180,84,0.30);

  /* Radii */
  --radius-pill: 999px;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --radius-slab: 24px;
  --radius-cta: 28px;

  /* Type */
  --font-display: "Space Grotesk", system-ui, -apple-system, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", monospace;
  --font-ar: "IBM Plex Sans Arabic", "Inter", sans-serif;
  --tracking-mono: 0.22em;
  --tracking-display: -0.03em;

  /* Scale & rhythm */
  --space-section: clamp(5rem, 4rem + 6vw, 9rem);
  --space-gutter: clamp(1.25rem, 0.5rem + 3vw, 2.5rem);
  --container: 1180px;
  --container-narrow: 720px;
  --fs-hero: clamp(3rem, 7vw, 6rem);
  --fs-h2: clamp(2.2rem, 4.5vw, 3.4rem);
  --fs-h3: clamp(1.35rem, 2vw, 1.75rem);
  --fs-body: 1.0625rem;
  --fs-lead: clamp(1.125rem, 1.5vw, 1.3rem);
  --fs-mono: 0.72rem;
  --lh-body: 1.65;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 500; line-height: 1.05; letter-spacing: var(--tracking-display); margin: 0; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }

::selection { background: rgba(255, 180, 84, 0.28); color: #fff; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.skip-link {
  position: fixed; left: 14px; top: -60px; z-index: 200;
  padding: 10px 16px; border-radius: 10px;
  background: var(--accent); color: var(--ink-on-accent);
  font-family: var(--font-body); font-weight: 600; font-size: 0.95rem;
  box-shadow: var(--shadow-glow-warm); transition: top 0.18s var(--ease-out);
}
.skip-link:focus { top: 14px; }

[lang="ar"] { font-family: var(--font-ar); }

.mono { font-family: var(--font-mono); text-transform: uppercase; letter-spacing: var(--tracking-mono); font-size: var(--fs-mono); }

.grad {
  background: var(--grad-warm-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 40px var(--accent-glow);
}

/* ---------- Aurora background + grain ---------- */
.bg-aurora { position: fixed; inset: 0; z-index: -2; pointer-events: none; overflow: hidden; }
.aurora-radial, .aurora-conic {
  position: absolute; inset: -10% -10% auto -10%; height: 120vh;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 55%, transparent 88%);
  mask-image: linear-gradient(180deg, #000 0%, #000 55%, transparent 88%);
}
.aurora-radial { background: var(--mesh-radial); }
.aurora-conic {
  inset: -40% -20% auto -20%; height: 150vh;
  background: var(--mesh-conic);
  opacity: 0.7;
  filter: blur(20px);
  animation: spin 40s linear infinite;
  will-change: transform;
}
@keyframes spin { to { transform: rotate(360deg); } }

.grain {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  opacity: 0.04; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Layout ---------- */
.section { max-width: var(--container); margin: 0 auto; padding: var(--space-section) var(--space-gutter); }
main > .hero { max-width: var(--container); margin: 0 auto; padding: clamp(7rem, 12vh, 10rem) var(--space-gutter) var(--space-section); }

.section-head { max-width: 680px; margin-bottom: clamp(2.5rem, 5vw, 3.5rem); position: relative; }
.ghost-index {
  display: block; font-family: var(--font-display); font-weight: 400;
  font-size: clamp(3rem, 8vw, 5rem); line-height: 0.8; margin-bottom: 0.4rem;
  color: transparent; -webkit-text-stroke: 1px rgba(255, 255, 255, 0.09);
  letter-spacing: 0.02em;
}
.kicker {
  font-family: var(--font-mono); text-transform: uppercase;
  letter-spacing: var(--tracking-mono); font-size: var(--fs-mono);
  font-weight: 500; color: var(--accent); margin-bottom: 1rem;
}
.section-head h2 { font-size: var(--fs-h2); }
.section-sub { margin-top: 1.1rem; color: var(--text-muted); font-size: var(--fs-lead); max-width: 62ch; }
.inline-ar, .ar-inline { color: var(--accent); font-size: 1.06em; }

/* ---------- Buttons ---------- */
.actions { display: flex; flex-wrap: wrap; gap: 0.85rem; }
.btn {
  position: relative; overflow: hidden;
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 1.6rem;
  font-family: var(--font-body); font-weight: 600; font-size: 1rem;
  border-radius: var(--radius-pill); border: 1px solid transparent;
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out), border-color 0.2s, background 0.2s;
  cursor: pointer;
}
.btn-primary { background: var(--grad-warm); color: var(--ink-on-accent); box-shadow: var(--shadow-glow-warm); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-glow-warm-hover); }
.btn-primary::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, transparent 30%, rgba(255,255,255,0.45) 50%, transparent 70%);
  transform: translateX(-120%); pointer-events: none;
  transition: transform 0.6s var(--ease-out);
}
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .btn-primary:hover::after { transform: translateX(120%); }
}
.btn-ghost {
  background: var(--surface-glass-strong); color: var(--text);
  border-color: var(--border-strong);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.btn-ghost:hover { transform: translateY(-2px); border-color: rgba(255,255,255,0.28); background: rgba(255,255,255,0.08); }

/* ---------- Nav ---------- */
.nav-wrap { position: fixed; top: 14px; left: 0; right: 0; z-index: 100; padding: 0 var(--space-gutter); pointer-events: none; }
.nav {
  pointer-events: auto; position: relative;
  max-width: var(--container); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 14px 16px 14px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: rgba(19, 19, 28, 0.55);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  backdrop-filter: blur(20px) saturate(140%);
  box-shadow: var(--inner-highlight), var(--shadow-soft);
  transition: padding 0.25s var(--ease-out), background 0.25s;
}
.nav.scrolled { padding-top: 10px; padding-bottom: 10px; background: rgba(19, 19, 28, 0.72); }
@supports not ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  .nav { background: rgba(19, 19, 28, 0.94); }
}
.brand { display: inline-flex; align-items: center; gap: 0.6rem; font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; }
.brand-mark {
  display: grid; place-items: center; width: 36px; height: 36px;
  border-radius: 10px; background: var(--surface);
  box-shadow: 0 0 0 1px rgba(255, 180, 84, 0.45), 0 0 16px rgba(255, 150, 40, 0.25);
}
.brand-ar { font-weight: 600; color: var(--accent); font-size: 1.1em; }
.nav-right { display: flex; align-items: center; gap: 1.2rem; }
.nav-links { display: flex; align-items: center; gap: 1.6rem; }

/* Mobile menu toggle (hidden on desktop) */
.nav-toggle {
  display: none; align-items: center; justify-content: center;
  width: 44px; height: 44px; padding: 0; border-radius: 11px;
  background: var(--surface-glass-strong); border: 1px solid var(--border);
  color: var(--text); cursor: pointer;
}
.nav-toggle-bars, .nav-toggle-bars::before, .nav-toggle-bars::after {
  display: block; width: 17px; height: 1.6px; border-radius: 2px;
  background: currentColor; transition: transform 0.2s var(--ease-out), opacity 0.2s;
}
.nav-toggle-bars { position: relative; }
.nav-toggle-bars::before { content: ""; position: absolute; top: -6px; left: 0; }
.nav-toggle-bars::after { content: ""; position: absolute; top: 6px; left: 0; }
.nav-open .nav-toggle-bars { background: transparent; }
.nav-open .nav-toggle-bars::before { transform: translateY(6px) rotate(45deg); }
.nav-open .nav-toggle-bars::after { transform: translateY(-6px) rotate(-45deg); }
.nav-links a:not(.nav-cta) {
  position: relative; font-weight: 500; font-size: 0.95rem; color: var(--text-muted);
  padding: 4px 2px; transition: color 0.2s;
}
.nav-links a:not(.nav-cta)::after {
  content: ""; position: absolute; left: 0; bottom: -2px; height: 1.5px; width: 100%;
  background: var(--accent); transform: scaleX(0); transform-origin: left;
  transition: transform 0.25s var(--ease-out);
}
.nav-links a:not(.nav-cta):hover, .nav-links a:not(.nav-cta):focus-visible { color: var(--text); }
.nav-links a:not(.nav-cta):hover::after, .nav-links a:not(.nav-cta):focus-visible::after { transform: scaleX(1); }
.nav-cta {
  min-height: 44px; display: inline-flex; align-items: center;
  padding: 0 1.1rem; border-radius: var(--radius-pill);
  background: var(--grad-warm); color: var(--ink-on-accent) !important;
  font-weight: 600; font-size: 0.92rem; box-shadow: var(--shadow-glow-warm);
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: var(--shadow-glow-warm-hover); }

/* ---------- Hero ---------- */
.hero { position: relative; display: grid; grid-template-columns: 1.1fr 0.9fr; align-items: center; gap: clamp(2rem, 5vw, 4rem); min-height: 86vh; }
.watermark {
  position: absolute; right: -2%; bottom: -8%; z-index: -1;
  font-family: var(--font-ar); font-weight: 700; font-size: clamp(9rem, 22vw, 17rem);
  line-height: 1; color: transparent; -webkit-text-stroke: 1px rgba(255, 255, 255, 0.05);
  pointer-events: none; user-select: none; white-space: nowrap;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.55rem; flex-wrap: wrap;
  padding: 0.5rem 0.9rem; margin-bottom: 1.6rem;
  border-radius: var(--radius-pill);
  background: var(--surface-glass); border: 1px solid var(--border);
  box-shadow: var(--inner-highlight);
  font-size: 0.9rem; color: var(--text-muted);
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent-glow); }
.eyebrow [lang="ar"] { color: var(--accent); font-weight: 600; font-size: 1.05rem; }
.eyebrow .mono { color: var(--text-faint); }
.eyebrow em { color: var(--text); font-style: italic; }

.hero h1 { font-size: var(--fs-hero); font-weight: 500; line-height: 1.02; }
.lead { margin-top: 1.5rem; font-size: var(--fs-lead); color: var(--text); max-width: 540px; }
.hero .actions { margin-top: 2rem; }

.stats { display: flex; flex-wrap: wrap; gap: 0; margin: 2.8rem 0 0; padding-top: 1.8rem; border-top: 1px solid var(--border); }
.stat { padding: 0 1.6rem; border-left: 1px solid var(--border); }
.stat:first-child { padding-left: 0; border-left: 0; }
.stat dt { font-family: var(--font-display); font-weight: 600; font-size: 2.1rem; line-height: 1; color: var(--text); font-variant-numeric: tabular-nums; }
.stat dt.inf { background: var(--grad-warm-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat dd { margin: 0.55rem 0 0; font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--text-faint); max-width: 16ch; }

.hero-art { position: relative; }
.fig-caption { font-family: var(--font-mono); font-size: var(--fs-mono); text-transform: uppercase; letter-spacing: var(--tracking-mono); color: var(--text-faint); margin-bottom: 0.6rem; }
.bulb-stage { position: relative; aspect-ratio: 1; display: grid; place-items: center; }
.bulb-bloom {
  position: absolute; width: 86%; height: 86%; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,170,60,0.45) 0%, rgba(255,150,40,0.12) 40%, transparent 70%);
  filter: blur(8px); animation: breathe 4s ease-in-out infinite;
}
@keyframes breathe { 0%, 100% { opacity: 0.5; } 50% { opacity: 0.95; } }
.bulb-stage svg { position: relative; animation: float 6s ease-in-out infinite; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
.rays line { transform-origin: 210px 195px; animation: pulse 3.4s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 0.45; } 50% { opacity: 1; } }

/* ---------- Concept / value cards ---------- */
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1rem, 2vw, 1.5rem); }
.value-card {
  position: relative; overflow: hidden;
  padding: 2rem; border-radius: var(--radius-lg);
  background: var(--surface-glass); border: 1px solid var(--border);
  box-shadow: var(--inner-highlight);
  transition: transform 0.25s var(--ease-out), border-color 0.25s, box-shadow 0.25s;
}
@supports not ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  .value-card, .project, .cta-inner { background: var(--surface); }
  .btn-ghost { background: var(--surface-2); }
}
.value-card::before {
  content: ""; position: absolute; inset: 0; opacity: 0; transition: opacity 0.3s;
  background: radial-gradient(220px circle at var(--mx, 50%) var(--my, 0%), var(--accent-tint-10), transparent 65%);
  pointer-events: none;
}
.value-card:hover { transform: translateY(-4px); border-color: var(--border-strong); box-shadow: var(--inner-highlight), var(--shadow-soft); }
.value-card:hover::before { opacity: 1; }
.value-ico {
  display: grid; place-items: center; width: 44px; height: 44px; margin-bottom: 1.1rem;
  border-radius: var(--radius-sm); font-size: 1.3rem; color: var(--accent);
  background: linear-gradient(135deg, rgba(255,180,84,0.16), rgba(255,122,24,0.05));
  box-shadow: inset 0 0 0 1px rgba(255,180,84,0.22);
}
.value-card h3 { font-family: var(--font-display); font-weight: 600; font-size: 1.25rem; margin-bottom: 0.5rem; }
.value-card p { color: var(--text-muted); }

/* ---------- Projects ---------- */
.project-list { display: flex; flex-direction: column; gap: clamp(1.5rem, 3vw, 2.5rem); }
.project {
  position: relative; overflow: hidden;
  display: grid; grid-template-columns: 1fr 1fr; align-items: center;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  padding: clamp(1.6rem, 3vw, 2.75rem);
  border-radius: var(--radius-slab);
  background: var(--surface-glass); border: 1px solid var(--border);
  box-shadow: var(--inner-highlight);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s;
}
/* accent gradient hairline frame */
.project::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
  background: radial-gradient(120% 120% at 0% 0%, color-mix(in srgb, var(--accent) 55%, transparent), transparent 55%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0.5; transition: opacity 0.35s; pointer-events: none;
}
/* cursor spotlight */
.project::after {
  content: ""; position: absolute; inset: 0; opacity: 0; transition: opacity 0.35s; pointer-events: none;
  background: radial-gradient(360px circle at var(--mx, 50%) var(--my, 0%), color-mix(in srgb, var(--accent) 10%, transparent), transparent 60%);
}
.project:hover { transform: translateY(-4px); box-shadow: var(--inner-highlight), var(--shadow-slab); }
.project:hover::before { opacity: 1; }
.project:hover::after { opacity: 1; }
.project.reverse .project-art { order: 2; }
.project-index {
  position: absolute; top: clamp(0.5rem, 2vw, 1.25rem); right: clamp(0.8rem, 2vw, 1.5rem);
  font-family: var(--font-display); font-weight: 400; font-size: clamp(3.5rem, 9vw, 6.5rem); line-height: 0.8;
  color: transparent; -webkit-text-stroke: 1px color-mix(in srgb, var(--accent) 28%, transparent);
  pointer-events: none; z-index: 1;
}
.project-body { position: relative; z-index: 1; }
.project-art {
  position: relative; border-radius: var(--radius-md); overflow: hidden; line-height: 0;
  background: var(--inset-panel); border: 1px solid var(--border);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.02);
}
.art-cap {
  position: absolute; top: 12px; left: 14px; z-index: 2;
  font-family: var(--font-mono); font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.18em;
  color: color-mix(in srgb, var(--accent) 78%, white 0%); opacity: 0.85;
}
.project-art .focal { filter: drop-shadow(0 0 8px color-mix(in srgb, var(--accent) 55%, transparent)); }
.project-tag {
  display: inline-block; margin-bottom: 1rem;
  font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.16em;
  color: var(--accent);
  color: color-mix(in srgb, var(--accent) 88%, white 12%);
  background: var(--accent-tint-10);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid var(--border-strong);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  padding: 0.4rem 0.8rem; border-radius: var(--radius-pill);
}
.project-body h3 { font-family: var(--font-display); font-weight: 600; font-size: var(--fs-h3); margin-bottom: 0.85rem; }
.project-body > p { color: var(--text-muted); }
.project-points { list-style: none; padding: 0; margin: 1.4rem 0 0; display: grid; gap: 0.75rem; }
.project-points li { position: relative; padding-left: 1.9rem; color: var(--text); font-weight: 500; }
.project-points li::before {
  content: ""; position: absolute; left: 0; top: 0.5em;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--accent-tint-16);
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  box-shadow: inset 0 0 0 1.5px var(--accent);
}
.project-points li::after { content: ""; position: absolute; left: 5px; top: calc(0.5em + 5px); width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.project-link {
  display: inline-flex; align-items: center; gap: 0.4rem; width: fit-content;
  margin-top: 1.5rem; padding-bottom: 3px;
  font-family: var(--font-mono); font-size: 0.85rem; font-weight: 600; letter-spacing: 0.02em;
  color: var(--accent);
  border-bottom: 1px solid var(--border-strong);
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  transition: gap 0.2s var(--ease-out), border-color 0.2s;
}
.project-link:hover { gap: 0.6rem; border-bottom-color: var(--accent); }
.project-soon { display: inline-block; margin-top: 1.5rem; font-size: 0.85rem; font-weight: 500; color: var(--text-faint); }

/* ---------- How we work ---------- */
.steps { position: relative; list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem; }
.steps-line { position: absolute; top: 50px; left: 6%; right: 6%; height: 1px; background: var(--border); transform: scaleX(0); transform-origin: left; transition: transform 1s var(--ease-out); }
.steps.in .steps-line { transform: scaleX(1); }
.step {
  position: relative; padding: 1.75rem; border-radius: var(--radius-lg);
  background: var(--surface-glass); border: 1px solid var(--border); box-shadow: var(--inner-highlight);
  transition: transform 0.25s var(--ease-out), border-color 0.25s;
}
.step:hover { transform: translateY(-4px); border-color: var(--border-strong); }
.step-num {
  position: relative; display: inline-grid; place-items: center; width: 46px; height: 46px; margin-bottom: 1.1rem;
  border-radius: var(--radius-sm); font-family: var(--font-display); font-weight: 600; font-variant-numeric: tabular-nums;
  color: var(--text); background: var(--surface); border: 1px solid var(--border);
}
.step-dot { position: absolute; top: -3px; right: -3px; width: 9px; height: 9px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent-glow); opacity: 0.25; transition: opacity 0.4s; }
.steps.in .step:nth-child(2) .step-dot { opacity: 1; transition-delay: 0.15s; }
.steps.in .step:nth-child(3) .step-dot { opacity: 1; transition-delay: 0.3s; }
.steps.in .step:nth-child(4) .step-dot { opacity: 1; transition-delay: 0.45s; }
.steps.in .step:nth-child(5) .step-dot { opacity: 1; transition-delay: 0.6s; }
.step h3 { font-family: var(--font-display); font-weight: 600; font-size: 1.2rem; margin-bottom: 0.4rem; }
.step p { color: var(--text-muted); font-size: 0.96rem; }

/* ---------- CTA ---------- */
.cta-inner {
  position: relative; overflow: hidden; text-align: center;
  padding: clamp(2.75rem, 6vw, 4.5rem) clamp(1.5rem, 4vw, 3rem);
  border-radius: var(--radius-cta);
  background: var(--surface-2); border: 1px solid var(--border);
  box-shadow: var(--shadow-slab);
}
.cta-inner::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 45%, transparent), transparent 40%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; pointer-events: none;
}
.cta-inner > * { position: relative; z-index: 1; }
.cta-glow, .cta-inner::after {
  content: ""; position: absolute; left: 50%; top: -30%; width: 80%; height: 90%;
  transform: translateX(-50%); z-index: 0; pointer-events: none;
  background: var(--mesh-radial);
}
.cta-badge { position: absolute; top: 1.1rem; right: 1.3rem; z-index: 1; color: var(--text-faint); border: 1px solid var(--border); padding: 0.3rem 0.6rem; border-radius: var(--radius-pill); }
.cta-inner .kicker { margin-bottom: 1rem; }
.cta-inner h2 { font-size: clamp(2rem, 5vw, 3.4rem); }
.cta-sub { margin: 1.1rem auto 0; max-width: 520px; color: var(--text-muted); font-size: var(--fs-lead); }
.cta-inner .actions { justify-content: center; margin-top: 2rem; }

/* ---------- Footer ---------- */
.footer { position: relative; overflow: hidden; max-width: var(--container); margin: 0 auto; padding: 3rem var(--space-gutter) 3rem; border-top: 1px solid var(--border); }
.footer-mark { right: -1%; bottom: -32%; font-size: clamp(7rem, 16vw, 12rem); opacity: 0.6; }
.footer-row { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1.25rem; padding-bottom: 1.6rem; border-bottom: 1px solid var(--border); }
.footer-links { display: flex; flex-wrap: wrap; gap: 1.5rem; }
.footer-links a { position: relative; display: inline-flex; align-items: center; min-height: 44px; font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.16em; color: var(--text-muted); transition: color 0.2s; }
.footer-links a::after { content: ""; position: absolute; left: 0; bottom: -3px; height: 1px; width: 100%; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform 0.25s var(--ease-out); }
.footer-links a:hover { color: var(--text); }
.footer-links a:hover::after { transform: scaleX(1); }
.footer-note { margin: 1.4rem 0 0; font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.08em; color: var(--text-faint); }

/* ---------- Scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out); transition-delay: calc(var(--i, 0) * 80ms); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; min-height: 0; gap: 2rem; }
  .hero-art { max-width: 360px; margin: 0 auto; order: -1; }
  .fig-caption { text-align: center; }
  .value-grid { grid-template-columns: 1fr; }
  .project, .project.reverse { grid-template-columns: 1fr; }
  .project.reverse .project-art { order: 0; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .steps-line { display: none; }

  /* Collapse primary links into a toggled glass dropdown */
  .nav-toggle { display: inline-flex; }
  .nav-links {
    position: absolute; top: calc(100% + 10px); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0.2rem;
    padding: 0.5rem; border-radius: var(--radius-md);
    background: rgba(19, 19, 28, 0.94);
    -webkit-backdrop-filter: blur(20px) saturate(140%);
    backdrop-filter: blur(20px) saturate(140%);
    border: 1px solid var(--border); box-shadow: var(--inner-highlight), var(--shadow-soft);
    opacity: 0; visibility: hidden; transform: translateY(-8px);
    transition: opacity 0.2s var(--ease-out), transform 0.2s var(--ease-out), visibility 0.2s;
  }
  .nav-open .nav-links { opacity: 1; visibility: visible; transform: none; }
  .nav-links a:not(.nav-cta) { min-height: 44px; display: flex; align-items: center; padding: 0 0.9rem; border-radius: 10px; color: var(--text); }
  .nav-links a:not(.nav-cta)::after { display: none; }
  .nav-links a:not(.nav-cta):hover { background: var(--surface-glass-strong); }
}
@media (max-width: 520px) {
  .steps { grid-template-columns: 1fr; }
  .stats { flex-direction: column; align-items: flex-start; gap: 1.3rem; }
  .stat { padding: 0; border-left: 0; }
  .cta-badge { display: none; }
  .watermark { font-size: 9rem; }
}

/* ---------- Language toggle ---------- */
.lang-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 44px; min-width: 48px; padding: 0 0.8rem;
  border-radius: var(--radius-pill);
  background: var(--surface-glass-strong); border: 1px solid var(--border);
  color: var(--text); font-family: var(--font-mono); font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.04em; cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.2s var(--ease-out);
}
.lang-toggle[lang="ar"] { font-family: var(--font-ar); font-size: 0.95rem; letter-spacing: 0; }
.lang-toggle:hover { border-color: var(--border-strong); background: rgba(255, 255, 255, 0.08); transform: translateY(-1px); }
@supports not ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  .lang-toggle, .theme-toggle { background: var(--surface-2); }
}

/* ---------- Theme toggle ---------- */
.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; padding: 0; border-radius: var(--radius-pill);
  background: var(--surface-glass-strong); border: 1px solid var(--border);
  color: var(--text); cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.2s var(--ease-out);
}
.theme-toggle:hover { border-color: var(--border-strong); background: rgba(255, 255, 255, 0.08); transform: translateY(-1px); }
.theme-toggle svg { width: 18px; height: 18px; display: block; }
.theme-toggle .ico-moon { display: none; }
html.light .theme-toggle .ico-sun { display: none; }
html.light .theme-toggle .ico-moon { display: block; }

/* ---------- Arabic typography ---------- */
html[lang="ar"] body { font-family: var(--font-ar); }
html[lang="ar"] h1, html[lang="ar"] h2, html[lang="ar"] h3 { font-family: var(--font-ar); font-weight: 700; letter-spacing: 0; line-height: 1.28; }
html[lang="ar"] p, html[lang="ar"] .lead { line-height: 1.9; }
html[lang="ar"] .kicker, html[lang="ar"] .mono, html[lang="ar"] .project-tag,
html[lang="ar"] .art-cap, html[lang="ar"] .fig-caption, html[lang="ar"] .stat dd,
html[lang="ar"] .footer-links a, html[lang="ar"] .footer-note, html[lang="ar"] .cta-badge {
  font-family: var(--font-ar); letter-spacing: 0; text-transform: none;
}
/* keep figure numerals crisp in the display face */
html[lang="ar"] .stat dt, html[lang="ar"] .step-num, html[lang="ar"] .ghost-index, html[lang="ar"] .project-index { font-family: var(--font-display); }

/* ---------- RTL flips ---------- */
[dir="rtl"] .stat { border-left: 0; border-right: 1px solid var(--border); }
[dir="rtl"] .stat:first-child { border-right: 0; }
[dir="rtl"] .project-points li { padding-left: 0; padding-right: 1.9rem; }
[dir="rtl"] .project-points li::before { left: auto; right: 0; }
[dir="rtl"] .project-points li::after { left: auto; right: 5px; }
[dir="rtl"] .project-index { right: auto; left: clamp(0.8rem, 2vw, 1.5rem); }
[dir="rtl"] .art-cap { left: auto; right: 14px; }
[dir="rtl"] .cta-badge { right: auto; left: 1.3rem; }
[dir="rtl"] .skip-link { left: auto; right: 14px; }
[dir="rtl"] .watermark { right: auto; left: -2%; }
[dir="rtl"] .footer-mark { right: auto; left: -1%; }
[dir="rtl"] .step-dot { right: auto; left: -3px; }
[dir="rtl"] .nav-toggle-bars::before, [dir="rtl"] .nav-toggle-bars::after { left: auto; right: 0; }

@media (max-width: 560px) {
  .nav-right { gap: 0.35rem; }
  .nav-cta { padding: 0 0.75rem; font-size: 0.82rem; }
  .lang-toggle { min-width: 38px; height: 40px; min-height: 40px; padding: 0 0.45rem; }
  .theme-toggle { width: 40px; height: 40px; }
}

/* ============================================================
   Light theme — "Daylight". A warm off-white companion to the
   dark room. The framed illustrations stay dark on purpose.
   ============================================================ */
html.light {
  color-scheme: light;
  --bg: #FAF7F2;
  --bg-elevated: #FFFFFF;
  --surface: #FFFFFF;
  --surface-2: #F4EEE5;
  --surface-glass: rgba(255, 255, 255, 0.55);
  --surface-glass-strong: rgba(255, 255, 255, 0.8);

  --text: #211934;
  --text-muted: #595270;
  --text-faint: #8A8499;
  --ink-on-accent: #2A1804;

  --border: rgba(33, 25, 52, 0.12);
  --border-strong: rgba(33, 25, 52, 0.22);
  --border-faint: rgba(33, 25, 52, 0.06);
  --inner-highlight: inset 0 1px 0 rgba(255, 255, 255, 0.7);

  --accent: #EF8A1B;
  --accent-2: #E0670A;
  --accent-tint-10: rgba(239, 138, 27, 0.12);
  --accent-tint-16: rgba(239, 138, 27, 0.18);
  --accent-glow: rgba(239, 138, 27, 0.28);

  --grad-warm-text: linear-gradient(110deg, #F0930F 0%, #DE5E08 100%);

  --mesh-radial: radial-gradient(60% 50% at 50% 0%, rgba(255, 170, 80, 0.22) 0%, rgba(255, 140, 40, 0.08) 35%, rgba(250, 247, 242, 0) 70%);
  --mesh-conic: conic-gradient(from 210deg at 50% 40%, rgba(123, 97, 255, 0.06), rgba(255, 150, 40, 0.10), rgba(46, 196, 182, 0.05), rgba(123, 97, 255, 0.06));

  --shadow-soft: 0 8px 30px rgba(33, 25, 52, 0.10);
  --shadow-slab: 0 24px 60px -20px rgba(33, 25, 52, 0.20);
  --shadow-glow-warm: 0 10px 24px rgba(240, 120, 20, 0.22), 0 0 0 1px rgba(239, 138, 27, 0.22);
  --shadow-glow-warm-hover: 0 14px 32px rgba(240, 120, 20, 0.32), 0 0 0 1px rgba(239, 138, 27, 0.32);
}

/* Surfaces & chrome that hard-code dark values */
html.light .nav { background: rgba(255, 255, 255, 0.62); }
html.light .nav.scrolled { background: rgba(255, 255, 255, 0.8); }
html.light .grain { opacity: 0.022; }
html.light .aurora-conic { opacity: 0.45; }
html.light .cta-inner { background: #FFF4E8; }

/* Faint outline text was white-on-dark — flip to ink-on-light */
html.light .watermark { -webkit-text-stroke-color: rgba(33, 25, 52, 0.06); }
html.light .ghost-index { -webkit-text-stroke-color: rgba(33, 25, 52, 0.13); }

/* Per-project accents are tuned for dark; darken the TEXT uses for light contrast */
html.light .project-tag { color: color-mix(in srgb, var(--accent) 72%, #000); }
html.light .project-link { color: color-mix(in srgb, var(--accent) 68%, #000); border-bottom-color: color-mix(in srgb, var(--accent) 50%, transparent); }

/* Subtle hovers (the dark theme's white washes are invisible on light) */
html.light .btn-ghost:hover,
html.light .lang-toggle:hover,
html.light .theme-toggle:hover,
html.light .nav-links a:not(.nav-cta):hover { background: rgba(33, 25, 52, 0.05); }

/* Mobile dropdown panel */
@media (max-width: 900px) {
  html.light .nav-links { background: rgba(255, 255, 255, 0.95); }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  .bulb-stage svg, .rays line, .rain, .aurora-conic { animation: none !important; }
  .bulb-bloom { animation: none !important; opacity: 0.7; }
  .reveal { opacity: 1; transform: none; }
  .steps-line { transform: scaleX(1); }
  .step-dot { opacity: 1; }
}