:root {
  --bg: #0A0E1A;
  --bg-2: #0E1424;
  --panel: #111A2E;
  --panel-2: #16203A;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.14);
  --text: #E9EDF6;
  --muted: #93A1BC;
  --gold: #E8B14A;
  --gold-soft: #F2C66B;
  --cyan: #5EEAD4;
  --blue: #5B8DEF;
  --radius: 18px;
  --maxw: 1140px;
  --font-head: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---- Background layers ---- */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 35%, transparent 80%);
  opacity: 0.6;
}
.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -3;
  background:
    radial-gradient(60% 50% at 75% 0%, rgba(91, 141, 239, 0.18), transparent 60%),
    radial-gradient(50% 50% at 15% 10%, rgba(232, 177, 74, 0.12), transparent 55%),
    radial-gradient(60% 60% at 50% 110%, rgba(94, 234, 212, 0.10), transparent 60%),
    var(--bg);
}

/* ---- Gift reveal ---- */
body.gift-locked { overflow: hidden; }

.gift {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 50% 38%, #16203A 0%, #0A0E1A 70%);
  transition: opacity 0.9s ease, visibility 0.9s ease;
  overflow: hidden;
}
.gift.opening { opacity: 0; visibility: hidden; }

/* ribbons wrapping the gift */
.gift-ribbon {
  position: absolute;
  z-index: 205;
  background: linear-gradient(90deg, #D89B2E, #F2C66B 45%, #FBE3A8 50%, #F2C66B 55%, #D89B2E);
  box-shadow: 0 0 40px rgba(232, 177, 74, 0.35);
  transition: transform 1s cubic-bezier(0.55, 0, 0.2, 1), opacity 0.8s ease;
}
.gift-ribbon-v {
  left: 50%;
  top: 0;
  width: 88px;
  height: 100%;
  transform: translateX(-50%);
}
.gift-ribbon-h {
  top: 50%;
  left: 0;
  width: 100%;
  height: 88px;
  background: linear-gradient(180deg, #D89B2E, #F2C66B 45%, #FBE3A8 50%, #F2C66B 55%, #D89B2E);
  transform: translateY(-50%);
}
.gift.opening .gift-ribbon-v { transform: translateX(-50%) translateY(-130%); }
.gift.opening .gift-ribbon-h { transform: translateY(-50%) translateX(130%); }

.gift-content {
  position: relative;
  z-index: 215;
  text-align: center;
  max-width: 440px;
  width: calc(100% - 40px);
  padding: 24px;
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.gift.opening .gift-content { opacity: 0; transform: scale(0.92); }

.gift-eyebrow {
  font-family: var(--font-head);
  letter-spacing: 0.14em;
  font-size: 14px;
  color: var(--gold-soft);
  margin-bottom: 20px;
}
.gift-logo-card {
  background: #fff;
  border-radius: 26px;
  padding: 20px;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(232, 177, 74, 0.4);
  display: inline-block;
  max-width: 320px;
  width: 100%;
}
.gift-logo-card img { width: 100%; display: block; border-radius: 14px; }
.gift-sub {
  color: var(--muted);
  font-size: 16px;
  margin: 24px auto 0;
  max-width: 360px;
}
.gift-btn {
  margin-top: 26px;
  padding: 16px 34px;
  border: none;
  border-radius: 14px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 17px;
  color: #0A0E1A;
  background: linear-gradient(135deg, var(--gold-soft), var(--gold));
  box-shadow: 0 14px 40px rgba(232, 177, 74, 0.45);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease;
  animation: gift-pulse 2.2s ease-in-out infinite;
}
.gift-btn:hover { transform: translateY(-2px); box-shadow: 0 18px 50px rgba(232, 177, 74, 0.6); }
.gift-btn:active { transform: translateY(0) scale(0.98); }
@keyframes gift-pulse {
  0%, 100% { box-shadow: 0 14px 40px rgba(232, 177, 74, 0.4); }
  50% { box-shadow: 0 14px 54px rgba(232, 177, 74, 0.75); }
}
.gift-hint {
  margin-top: 16px;
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--muted);
  opacity: 0.7;
}

#gift-canvas {
  position: fixed;
  inset: 0;
  z-index: 250;
  pointer-events: none;
  display: none;
}
#gift-canvas.active { display: block; }
.gift-balloons {
  position: fixed;
  inset: 0;
  z-index: 245;
  pointer-events: none;
  overflow: hidden;
}
.balloon {
  position: absolute;
  bottom: -160px;
  width: 46px;
  height: 58px;
  border-radius: 50% 50% 48% 48%;
  opacity: 0.95;
  box-shadow: inset -6px -8px 12px rgba(0, 0, 0, 0.18);
  animation: balloon-rise ease-in forwards;
}
.balloon::before {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 7px solid currentColor;
  color: inherit;
  opacity: 0.8;
}
.balloon::after {
  content: "";
  position: absolute;
  bottom: -52px;
  left: 50%;
  width: 1px;
  height: 50px;
  background: rgba(255, 255, 255, 0.35);
}
@keyframes balloon-rise {
  0% { transform: translateY(0) translateX(0); }
  100% { transform: translateY(-118vh) translateX(var(--sway, 0)); }
}

@media (max-width: 560px) {
  .gift-ribbon-v { width: 58px; }
  .gift-ribbon-h { height: 58px; }
  .gift-logo-card { max-width: 260px; }
}

/* ---- Nav ---- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px 24px;
  transition: background 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(10, 14, 26, 0.78);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}
.brand-mark-img {
  width: 36px;
  height: 36px;
  display: block;
}
.brand-text {
  font-family: var(--font-head);
  font-weight: 700;
  letter-spacing: 0.08em;
  font-size: 16px;
}
.brand-text .ai {
  background: linear-gradient(120deg, var(--gold-soft), var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand-sub {
  margin-left: 6px;
  color: var(--muted);
  font-weight: 400;
  letter-spacing: 0.14em;
  font-size: 11px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
}
.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
  padding: 9px 16px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  color: var(--text) !important;
  background: rgba(255, 255, 255, 0.03);
}
.nav-cta:hover {
  border-color: var(--gold);
  box-shadow: 0 0 0 1px var(--gold);
}

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  padding: 14px 26px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
  cursor: pointer;
}
.btn-primary {
  color: #0A0E1A;
  background: linear-gradient(135deg, var(--gold-soft), var(--gold));
  box-shadow: 0 10px 30px rgba(232, 177, 74, 0.28);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 36px rgba(232, 177, 74, 0.4); }
.btn-ghost {
  color: var(--text);
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.02);
}
.btn-ghost:hover { border-color: var(--cyan); color: #fff; }

/* ---- Hero ---- */
.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 90px 24px 70px;
}
.eyebrow {
  display: inline-block;
  font-family: var(--font-head);
  letter-spacing: 0.22em;
  font-size: 12px;
  color: var(--cyan);
  padding: 7px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(94, 234, 212, 0.06);
}
.hero h1 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(38px, 6.5vw, 76px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 22px 0 0;
}
.grad {
  background: linear-gradient(120deg, var(--gold-soft), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lead {
  max-width: 640px;
  margin: 24px 0 0;
  font-size: clamp(16px, 2vw, 19px);
  color: var(--muted);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 34px 0 0;
}
.concept {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin: 40px 0 0;
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.02);
  font-size: 14.5px;
  color: var(--muted);
}
.concept b { font-family: var(--font-head); letter-spacing: 0.06em; }
.concept .mat { color: var(--text); }
.concept .ai {
  background: linear-gradient(120deg, var(--gold-soft), var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.concept-div { flex: 1; height: 1px; min-width: 18px; background: var(--line-strong); }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 40px 0 0;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}
.stat b {
  font-family: var(--font-head);
  font-size: clamp(28px, 4vw, 40px);
  color: var(--gold-soft);
  display: block;
}
.stat span { color: var(--muted); font-size: 14px; }

/* ---- Sections ---- */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 80px 24px;
}
.section-head { max-width: 760px; margin-bottom: 44px; }
.kicker {
  font-family: var(--font-head);
  letter-spacing: 0.2em;
  font-size: 12px;
  text-transform: uppercase;
  color: var(--cyan);
}
.section-head h2 {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 12px 0 0;
}
.section-sub { color: var(--muted); margin-top: 14px; font-size: 17px; }

/* ---- Story ---- */
.story-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 28px;
  align-items: start;
}
.story-text p { color: var(--muted); margin-bottom: 18px; font-size: 17px; }
.pullquote {
  color: var(--text) !important;
  font-family: var(--font-head);
  font-size: 20px !important;
  line-height: 1.5;
  border-left: 2px solid var(--gold);
  padding-left: 20px;
}
.story-card {
  background: linear-gradient(160deg, var(--panel), var(--bg-2));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
}
.philos-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 16px;
}
.philos-row:last-child { border-bottom: none; }
.philos-row .x { color: #6c7a96; }
.philos-row .arrow { color: var(--gold); font-weight: 700; }
.philos-row .o { color: var(--text); font-weight: 600; font-family: var(--font-head); }

/* ---- Stages ---- */
.stages {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.stage {
  position: relative;
  background: linear-gradient(170deg, var(--panel), var(--bg-2));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 22px 22px;
  overflow: hidden;
  transition: transform 0.25s, border-color 0.25s;
}
.stage::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--cyan));
  opacity: 0;
  transition: opacity 0.25s;
}
.stage:hover { transform: translateY(-6px); border-color: var(--line-strong); }
.stage:hover::before { opacity: 1; }
.stage-num {
  font-family: var(--font-head);
  font-size: 13px;
  color: var(--gold);
  letter-spacing: 0.1em;
}
.stage h3 {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 20px;
  margin: 12px 0 10px;
}
.stage p { color: var(--muted); font-size: 14.5px; }
.stage-tag {
  display: inline-block;
  margin-top: 18px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  padding: 5px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
}

/* ---- MAT / AI accents in headings ---- */
.section-head h2 .mat { color: var(--text); }
.section-head h2 .ai {
  background: linear-gradient(120deg, var(--gold-soft), var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---- Program tracks ---- */
.track { margin-bottom: 8px; }
.track-label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-head);
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}
.badge {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.12em;
  padding: 6px 12px;
  border-radius: 8px;
}
.badge-mat { color: var(--text); border: 1px solid var(--line-strong); background: rgba(255, 255, 255, 0.03); }
.badge-ai { color: #0A0E1A; background: linear-gradient(135deg, var(--gold-soft), var(--gold)); }

.track-flow {
  text-align: center;
  font-size: 26px;
  color: var(--gold);
  margin: 20px 0;
  opacity: 0.8;
}

.ai-peak {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: clamp(26px, 4vw, 40px);
  border-radius: 22px;
  background:
    radial-gradient(70% 130% at 100% 0%, rgba(232, 177, 74, 0.16), transparent 55%),
    linear-gradient(160deg, var(--panel-2), var(--bg-2));
  border: 1px solid rgba(232, 177, 74, 0.3);
}
.ai-peak-text { flex: 1; }
.ai-peak .stage-num.gold { color: var(--gold-soft); }
.ai-peak h3 {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(22px, 3vw, 30px);
  margin: 10px 0 12px;
}
.ai-peak p { color: var(--muted); font-size: 16px; margin-bottom: 18px; max-width: 620px; }
.ai-peak-mark {
  width: clamp(90px, 14vw, 150px);
  height: auto;
  flex-shrink: 0;
  filter: drop-shadow(0 10px 30px rgba(232, 177, 74, 0.25));
}

/* ---- Team ---- */
.team {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.member {
  background: linear-gradient(170deg, var(--panel), var(--bg-2));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform 0.25s, border-color 0.25s;
}
.member:hover { transform: translateY(-5px); border-color: var(--line-strong); }
.member-lead {
  grid-column: span 3;
  background:
    radial-gradient(80% 120% at 0% 0%, rgba(232, 177, 74, 0.10), transparent 50%),
    linear-gradient(170deg, var(--panel-2), var(--bg-2));
  border-color: rgba(232, 177, 74, 0.28);
}
.member-top { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.avatar {
  display: grid;
  place-items: center;
  width: 50px;
  height: 50px;
  border-radius: 14px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 22px;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--line-strong);
  flex-shrink: 0;
}
.member-lead .avatar {
  color: #0A0E1A;
  background: linear-gradient(135deg, var(--gold-soft), var(--gold));
  border: none;
}
.member h3 { font-family: var(--font-head); font-weight: 600; font-size: 19px; }
.role { color: var(--muted); font-size: 13.5px; }
.role-lead { color: var(--gold-soft); font-weight: 600; }
.creds { list-style: none; margin: 0 0 16px; }
.creds li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 7px;
}
.creds li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cyan);
}
.tags { display: flex; flex-wrap: wrap; gap: 7px; }
.tags span {
  font-size: 12px;
  color: var(--text);
  padding: 5px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
}

/* ---- Values ---- */
.values { display: flex; flex-wrap: wrap; gap: 12px; }
.values span {
  font-family: var(--font-head);
  font-size: clamp(15px, 2vw, 19px);
  color: var(--text);
  padding: 12px 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(170deg, var(--panel), var(--bg-2));
  transition: border-color 0.2s, color 0.2s;
}
.values span:hover { border-color: var(--gold); color: var(--gold-soft); }

/* ---- Future ---- */
.section-future { padding-top: 40px; }
.future-inner {
  background:
    radial-gradient(80% 140% at 100% 0%, rgba(91, 141, 239, 0.14), transparent 55%),
    linear-gradient(160deg, var(--panel-2), var(--bg-2));
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: clamp(30px, 5vw, 56px);
  max-width: 920px;
}
.future-inner h2 {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(24px, 3.4vw, 36px);
  margin: 12px 0 18px;
  line-height: 1.15;
}
.future-inner p { color: var(--muted); font-size: 17px; margin-bottom: 16px; }

/* ---- Join ---- */
.section-join { padding-top: 40px; }
.join-card {
  text-align: center;
  background:
    radial-gradient(60% 120% at 50% 0%, rgba(232, 177, 74, 0.14), transparent 60%),
    linear-gradient(160deg, var(--panel), var(--bg-2));
  border: 1px solid rgba(232, 177, 74, 0.25);
  border-radius: 26px;
  padding: clamp(40px, 6vw, 72px) 24px;
}
.join-card h2 {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(26px, 4vw, 44px);
  line-height: 1.1;
}
.join-card p { color: var(--muted); max-width: 540px; margin: 16px auto 0; font-size: 17px; }
.join-actions { display: flex; gap: 14px; justify-content: center; margin: 30px 0 0; flex-wrap: wrap; }
.join-note {
  margin-top: 26px;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.04em;
}

/* ---- Footer ---- */
.footer {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 50px 24px 60px;
  border-top: 1px solid var(--line);
  text-align: center;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-weight: 600;
  letter-spacing: 0.08em;
}
.footer-tag { color: var(--cyan); font-size: 13px; margin: 10px 0 6px; letter-spacing: 0.12em; }
.footer-copy { color: var(--muted); font-size: 13px; }

/* ---- Reveal animation ---- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in { opacity: 1; transform: none; }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .nav-links a:not(.nav-cta) { display: none; }
  .story-grid { grid-template-columns: 1fr; }
  .stages { grid-template-columns: repeat(2, 1fr); }
  .team { grid-template-columns: 1fr 1fr; }
  .member-lead { grid-column: span 2; }
}
@media (max-width: 560px) {
  .hero-stats { grid-template-columns: 1fr; gap: 14px; }
  .stages { grid-template-columns: 1fr; }
  .team { grid-template-columns: 1fr; }
  .member-lead { grid-column: span 1; }
  .nav { padding: 14px 18px; }
  .concept { flex-direction: column; align-items: flex-start; gap: 8px; }
  .concept-div { display: none; }
  .ai-peak { flex-direction: column-reverse; text-align: left; align-items: flex-start; }
  .ai-peak-mark { width: 84px; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}