:root {
  --hx-void: #05080F;
  --hx-ink: #0B1220;
  --hx-slate: #1A2433;
  --hx-paper: #EEF1F4;
  --hx-mist: #D8DEE7;
  --hx-text: #F4F7FB;
  --hx-muted: #9AABC0;
  --hx-teal: #1AB89A;
  --hx-teal-deep: #0E7A68;
  --hx-bronze: #B8894A;
  --hx-bronze-soft: #D4B483;
  --hx-danger: #C23B3B;
  --font-display: "Syne", "Cairo", system-ui, sans-serif;
  --font-ar: "Cairo", "Tajawal", system-ui, sans-serif;
  --font-body: "Source Serif 4", "Tajawal", Georgia, serif;
  --font-ui: "Tajawal", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --max: 74rem;
  --pad: clamp(1.25rem, 4vw, 2.75rem);
  --section-y: clamp(4.5rem, 9vw, 7.5rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; }
body {
  min-height: 100vh;
  color: var(--hx-text);
  font-family: var(--font-ui);
  line-height: 1.7;
  background: var(--hx-void);
  overflow-x: hidden;
}

/* Atmosphere */
.bg-stage {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 90% 55% at 85% -5%, rgba(26,184,154,0.16), transparent 55%),
    radial-gradient(ellipse 70% 45% at 0% 20%, rgba(184,137,74,0.12), transparent 50%),
    radial-gradient(ellipse 50% 40% at 50% 100%, rgba(14,122,104,0.08), transparent 60%),
    var(--hx-void);
}
.bg-stage::after {
  content: "";
  position: absolute; inset: 0;
  opacity: 0.035;
  background-image: repeating-linear-gradient(
    0deg, rgba(255,255,255,0.7) 0, rgba(255,255,255,0.7) 1px, transparent 1px, transparent 4px
  );
}
.orb {
  position: absolute; border-radius: 50%; filter: blur(60px); opacity: 0.45;
  animation: drift 14s ease-in-out infinite alternate;
}
.orb-a { width: 280px; height: 280px; background: rgba(26,184,154,0.35); top: 12%; right: 8%; }
.orb-b { width: 220px; height: 220px; background: rgba(184,137,74,0.28); top: 48%; left: 4%; animation-delay: -4s; }
@keyframes drift {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(-24px, 18px) scale(1.08); }
}

.site-header, main, .site-footer { position: relative; z-index: 1; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(16px) saturate(1.2);
  background: rgba(5, 8, 15, 0.72);
  border-bottom: 1px solid rgba(238,241,244,0.06);
}
.nav {
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
  max-width: var(--max); margin: 0 auto;
  padding: 1.1rem var(--pad);
}
.brand {
  display: flex; align-items: center; gap: 0.85rem;
  text-decoration: none; color: var(--hx-text);
  flex-shrink: 0;
}
.brand img { width: 42px; height: 48px; display: block; }
.brand-text { display: flex; flex-direction: column; gap: 0.1rem; }
.brand-name {
  font-family: var(--font-display); font-weight: 800; font-size: 1.35rem;
  letter-spacing: -0.02em; line-height: 1;
}
.brand-sub {
  font-size: 0.68rem; color: var(--hx-bronze-soft); font-weight: 600;
  letter-spacing: 0.04em;
}
.nav-links {
  display: flex; align-items: center; gap: clamp(0.85rem, 2vw, 1.6rem);
  flex-wrap: wrap;
}
.nav-links a {
  color: var(--hx-muted); text-decoration: none; font-size: 0.95rem; font-weight: 600;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--hx-text); }
.nav-actions { display: flex; align-items: center; gap: 0.65rem; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  padding: 0.85rem 1.45rem; border-radius: 12px; font-weight: 700;
  text-decoration: none; border: 1px solid transparent; cursor: pointer;
  font-family: var(--font-ui); font-size: 0.95rem;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(135deg, var(--hx-teal), var(--hx-teal-deep));
  color: #03140f; box-shadow: 0 12px 36px rgba(26,184,154,0.28);
}
.btn-secondary {
  background: rgba(184,137,74,0.08);
  border-color: rgba(184,137,74,0.45);
  color: var(--hx-bronze-soft);
}
.btn-ghost {
  background: rgba(238,241,244,0.04);
  border-color: rgba(238,241,244,0.16);
  color: var(--hx-text);
  padding: 0.65rem 1.1rem;
}
.btn-lg { padding: 1rem 1.75rem; font-size: 1.02rem; }

/* Hero — one composition, brand-first, full-bleed visual plane */
.hero {
  position: relative;
  min-height: min(92vh, 900px);
  display: grid;
  align-items: end;
  max-width: none;
  padding: 0;
  overflow: hidden;
}
.hero-visual {
  position: absolute; inset: 0; z-index: 0;
  background:
    linear-gradient(105deg, rgba(5,8,15,0.92) 0%, rgba(5,8,15,0.55) 42%, rgba(5,8,15,0.25) 70%),
    radial-gradient(ellipse 60% 70% at 70% 45%, rgba(26,184,154,0.18), transparent 55%);
}
.hero-visual canvas,
.hero-cert-plane {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: flex-end;
  padding: 6rem var(--pad) 4rem;
  pointer-events: none;
}
.hero-cert-plane .cert-sheet {
  width: min(420px, 46vw);
  transform: perspective(900px) rotateY(-8deg) rotateX(4deg);
  opacity: 0.92;
  animation: floatCert 7s ease-in-out infinite;
}
@keyframes floatCert {
  0%, 100% { transform: perspective(900px) rotateY(-8deg) rotateX(4deg) translateY(0); }
  50% { transform: perspective(900px) rotateY(-6deg) rotateX(3deg) translateY(-10px); }
}
.hero-content {
  position: relative; z-index: 2;
  max-width: var(--max); width: 100%; margin: 0 auto;
  padding: clamp(5rem, 12vh, 8rem) var(--pad) clamp(3.5rem, 8vh, 5.5rem);
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  color: var(--hx-bronze); font-size: 0.78rem; font-weight: 800;
  letter-spacing: 0.12em; text-transform: uppercase; margin: 0 0 1.25rem;
}
.eyebrow a { color: inherit; text-decoration: none; border-bottom: 1px solid rgba(184,137,74,0.4); }
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(3.4rem, 9vw, 6.2rem);
  line-height: 0.92; margin: 0 0 1.15rem; font-weight: 800;
  letter-spacing: -0.03em;
}
.headline {
  font-family: var(--font-ar);
  font-size: clamp(1.35rem, 2.8vw, 1.95rem);
  font-weight: 700; margin: 0 0 1.1rem; max-width: 28ch; line-height: 1.35;
}
.support {
  color: var(--hx-muted); max-width: 38rem;
  font-family: var(--font-body); font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  margin: 0;
}
.cta { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 2.1rem; }

/* Certificate sheet (hero visual) */
.cert-sheet {
  background: linear-gradient(165deg, rgba(15,22,36,0.95), rgba(8,12,20,0.98));
  border: 1px solid rgba(184,137,74,0.4);
  border-radius: 20px;
  padding: 2rem 1.85rem 1.75rem;
  box-shadow: 0 30px 80px rgba(0,0,0,0.45), 0 0 0 1px rgba(26,184,154,0.08) inset;
  position: relative; overflow: hidden;
}
.seal-ribbon {
  position: absolute; top: 1.35rem; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, transparent, var(--hx-bronze), var(--hx-teal), transparent);
  transform-origin: center;
  animation: sealDraw 0.7s ease-out 0.25s both;
}
@keyframes sealDraw { from { transform: scaleX(0); opacity: 0; } to { transform: scaleX(1); opacity: 1; } }
.cert-kicker {
  color: var(--hx-bronze); font-size: 0.7rem; letter-spacing: 0.16em;
  text-transform: uppercase; margin: 0.85rem 0 0.4rem; font-weight: 800;
}
.cert-sheet h2 {
  margin: 0 0 1.35rem; font-family: var(--font-display); font-size: 1.45rem; font-weight: 700;
}
.cert-sheet dl { margin: 0; display: grid; gap: 0.95rem; }
.cert-sheet dt { color: var(--hx-muted); font-size: 0.75rem; font-weight: 600; }
.cert-sheet dd { margin: 0.2rem 0 0; font-weight: 700; font-size: 0.98rem; }
.cert-sheet .ok { color: var(--hx-teal); }
.mono { font-family: var(--font-mono); font-size: 0.86rem; color: var(--hx-mist); letter-spacing: 0.02em; }
.cert-foot { margin: 1.5rem 0 0; color: var(--hx-muted); font-size: 0.84rem; }

/* Sections */
.section {
  max-width: var(--max); margin: 0 auto;
  padding: var(--section-y) var(--pad);
}
.section-kicker {
  color: var(--hx-teal); font-size: 0.78rem; font-weight: 800;
  letter-spacing: 0.14em; text-transform: uppercase; margin: 0 0 0.85rem;
}
.section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 3.5vw, 2.65rem);
  margin: 0 0 1rem; line-height: 1.15; letter-spacing: -0.02em;
}
.lead {
  color: var(--hx-muted); margin: 0; max-width: 42rem;
  font-family: var(--font-body); font-size: 1.12rem;
}

.audience-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem;
  margin-top: 2.75rem;
}
.audience-item {
  padding: 1.75rem 0 0;
  border-top: 1px solid rgba(238,241,244,0.1);
}
.audience-item h3 {
  font-family: var(--font-ar); font-size: 1.15rem; margin: 0 0 0.55rem; font-weight: 800;
}
.audience-item p { margin: 0; color: var(--hx-muted); font-size: 0.98rem; }

/* How + video */
.how-layout {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 3rem;
  align-items: start; margin-top: 2.5rem;
}
.steps { display: grid; gap: 1.35rem; counter-reset: step; }
.step {
  display: grid; grid-template-columns: auto 1fr; gap: 1rem;
  padding: 1.15rem 0; border-bottom: 1px solid rgba(238,241,244,0.07);
}
.step-num {
  width: 2.4rem; height: 2.4rem; border-radius: 50%;
  display: grid; place-items: center;
  border: 1px solid rgba(26,184,154,0.45); color: var(--hx-teal);
  font-family: var(--font-mono); font-weight: 700; font-size: 0.9rem;
}
.step h3 { margin: 0 0 0.35rem; font-size: 1.08rem; font-family: var(--font-ar); }
.step p { margin: 0; color: var(--hx-muted); font-size: 0.95rem; }

.video-panel {
  position: relative; border-radius: 18px; overflow: hidden;
  border: 1px solid rgba(238,241,244,0.1);
  background: var(--hx-ink);
  aspect-ratio: 16 / 10;
  box-shadow: 0 24px 60px rgba(0,0,0,0.35);
}
.video-poster {
  position: absolute; inset: 0;
  background:
    linear-gradient(160deg, rgba(5,8,15,0.2), rgba(5,8,15,0.75)),
    radial-gradient(circle at 30% 40%, rgba(26,184,154,0.25), transparent 50%),
    radial-gradient(circle at 70% 60%, rgba(184,137,74,0.2), transparent 45%),
    var(--hx-ink);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 1rem; cursor: pointer; border: 0; width: 100%; height: 100%; color: inherit;
}
.play-btn {
  width: 74px; height: 74px; border-radius: 50%;
  background: linear-gradient(135deg, var(--hx-teal), var(--hx-teal-deep));
  display: grid; place-items: center;
  box-shadow: 0 16px 40px rgba(26,184,154,0.35);
  transition: transform 0.2s;
}
.video-poster:hover .play-btn { transform: scale(1.06); }
.play-btn svg { width: 28px; height: 28px; fill: #03140f; margin-inline-start: 3px; }
.video-caption { color: var(--hx-mist); font-weight: 700; font-size: 0.95rem; }

/* Demo animation inside modal / poster */
.demo-flow {
  display: flex; gap: 0.65rem; align-items: center; justify-content: center;
  margin-top: 0.5rem; flex-wrap: wrap; font-size: 0.78rem; color: var(--hx-muted);
  font-family: var(--font-mono);
}
.demo-flow span {
  padding: 0.35rem 0.65rem; border-radius: 999px;
  border: 1px solid rgba(238,241,244,0.12); background: rgba(5,8,15,0.4);
}
.demo-flow span.on { border-color: rgba(26,184,154,0.5); color: var(--hx-teal); }

/* Standards */
.chips {
  display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem;
}
.chip {
  padding: 0.7rem 1.15rem; border-radius: 999px;
  border: 1px solid rgba(184,137,74,0.35);
  background: rgba(184,137,74,0.06);
  color: var(--hx-bronze-soft); font-weight: 700; font-size: 0.9rem;
}

/* Parent Extreme Technology band */
.parent-band {
  margin: 0;
  padding: var(--section-y) var(--pad);
  background:
    linear-gradient(120deg, rgba(11,18,32,0.95), rgba(5,8,15,0.98)),
    var(--hx-ink);
  border-block: 1px solid rgba(238,241,244,0.08);
}
.parent-inner {
  max-width: var(--max); margin: 0 auto;
  display: grid; grid-template-columns: 1.2fr auto; gap: 2rem; align-items: center;
}
.parent-band h2 { font-size: clamp(1.5rem, 2.8vw, 2rem); margin-bottom: 0.75rem; }
.parent-band p { margin: 0; color: var(--hx-muted); max-width: 40rem; font-family: var(--font-body); }

.final {
  text-align: center; padding-bottom: calc(var(--section-y) + 1rem);
}
.final h2 { max-width: 22ch; margin: 0 auto 1.75rem; }

.site-footer {
  border-top: 1px solid rgba(238,241,244,0.08);
  padding: 2rem var(--pad) 2.5rem;
}
.foot-inner {
  max-width: var(--max); margin: 0 auto;
  display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between;
  color: var(--hx-muted); font-size: 0.9rem;
}
.foot-inner a { color: var(--hx-teal); text-decoration: none; }
.foot-inner a:hover { text-decoration: underline; }

/* Modal */
.modal {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(2,4,8,0.82); backdrop-filter: blur(8px);
  display: none; align-items: center; justify-content: center;
  padding: 1.5rem;
}
.modal.open { display: flex; }
.modal-panel {
  width: min(920px, 100%);
  background: var(--hx-ink);
  border: 1px solid rgba(238,241,244,0.12);
  border-radius: 18px; overflow: hidden;
  box-shadow: 0 40px 100px rgba(0,0,0,0.5);
}
.modal-bar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.9rem 1.1rem; border-bottom: 1px solid rgba(238,241,244,0.08);
  font-weight: 700;
}
.modal-close {
  background: transparent; border: 0; color: var(--hx-muted); font-size: 1.4rem; cursor: pointer;
}
.modal-body { padding: 1.25rem; }
.demo-stage {
  aspect-ratio: 16/9; border-radius: 12px; background: var(--hx-void);
  border: 1px solid rgba(238,241,244,0.08);
  display: grid; place-items: center; position: relative; overflow: hidden;
}
.demo-stage svg { width: min(88%, 520px); height: auto; }
.demo-note { margin: 1rem 0 0; color: var(--hx-muted); font-size: 0.92rem; text-align: center; }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* Inner pages keep compatibility */
.page { max-width: 44rem; margin: 0 auto; padding: 3.5rem var(--pad) 5rem; }
.page h1 { font-family: var(--font-display); }
.page p, .page li { color: var(--hx-mist); font-family: var(--font-body); }
.card-form {
  max-width: 28rem; margin: 2rem auto; padding: 1.5rem;
  background: rgba(11,18,32,0.9); border: 1px solid var(--hx-slate); border-radius: 14px;
}
.card-form label { display: block; margin: 0.75rem 0 0.3rem; font-size: 0.9rem; }
.card-form input {
  width: 100%; padding: 0.7rem 0.8rem; border-radius: 8px; border: 1px solid var(--hx-slate);
  background: var(--hx-void); color: var(--hx-text);
}
.card-form button { margin-top: 1rem; width: 100%; cursor: pointer; }
.msg { margin-top: 0.85rem; font-size: 0.9rem; }

@media (max-width: 960px) {
  .hero-cert-plane { display: none; }
  .hero { min-height: auto; }
  .audience-grid, .how-layout, .parent-inner { grid-template-columns: 1fr; }
  .nav-links a:not(.lang) { display: none; }
  .brand-sub { display: none; }
}