:root {
  --navy: #092c66;
  --blue: #0e78d5;
  --cyan: #20c8d5;
  --ink: #10233f;
  --muted: #63738a;
  --light: #f4f9ff;
  --white: #ffffff;
  --line: #dce8f5;
  --shadow: 0 18px 55px rgba(16, 62, 115, .12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: #fff;
}

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

button, input { font: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(220,232,245,.8);
}

.nav-shell {
  max-width: 1280px;
  min-height: 78px;
  margin: auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 25px;
}

.brand { display: flex; align-items: center; gap: 11px; min-width: 220px; }
.brand img { width: 52px; height: 52px; object-fit: contain; }
.brand-text { display: grid; line-height: 1.05; }
.brand-text strong { font-size: 17px; color: var(--navy); }
.brand-text span { margin-top: 4px; font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }

.desktop-nav { display: flex; align-items: center; gap: 7px; }
.desktop-nav > a, .dropdown-trigger, .me-btn {
  border: 0;
  background: transparent;
  color: #263a55;
  padding: 10px 13px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}
.desktop-nav > a:hover, .dropdown-trigger:hover, .me-btn:hover { background: var(--light); color: var(--blue); }

.nav-dropdown { position: relative; }
.dropdown-menu {
  display: none;
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  min-width: 170px;
  padding: 8px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 13px;
  box-shadow: var(--shadow);
}
.nav-dropdown:hover .dropdown-menu { display: grid; }
.dropdown-menu a { padding: 10px 12px; border-radius: 8px; font-size: 13px; }
.dropdown-menu a:hover { background: var(--light); color: var(--blue); }

.icon-btn, .slide-btn, .close-btn {
  border: 0;
  cursor: pointer;
  background: transparent;
}
.icon-btn { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; }
.icon-btn:hover { background: var(--light); }
.search-icon {
  width: 15px; height: 15px; border: 2px solid currentColor; border-radius: 50%;
  position: relative; display: inline-block;
}
.search-icon::after {
  content: ""; position: absolute; width: 7px; height: 2px; background: currentColor;
  right: -6px; bottom: -3px; transform: rotate(45deg); border-radius: 2px;
}
.me-btn { border: 1px solid var(--line); border-radius: 22px; padding: 9px 15px; }

.mobile-menu-btn, .mobile-nav { display: none; }

.hero {
  min-height: 620px;
  max-width: 1280px;
  margin: auto;
  padding: 80px 28px 70px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 50px;
}
.hero-copy { max-width: 650px; }
.eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .18em;
  color: var(--blue);
}
.hero h1 {
  margin: 16px 0;
  font-size: clamp(48px, 6vw, 78px);
  line-height: .98;
  letter-spacing: -.055em;
  color: var(--navy);
}
.hero h1 span {
  background: linear-gradient(90deg, #0b72d4, #20c8d5);
  -webkit-background-clip: text;
  color: transparent;
}
.hero p { max-width: 610px; font-size: 18px; line-height: 1.8; color: var(--muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

.primary-btn, .secondary-btn, .youtube-btn {
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 11px; padding: 13px 18px; font-size: 13px; font-weight: 700;
  cursor: pointer; transition: .2s ease;
}
.primary-btn { color: white; background: linear-gradient(135deg, #0a5ec4, #12a4d8); border: 0; box-shadow: 0 10px 25px rgba(14,120,213,.22); }
.secondary-btn { color: var(--navy); background: white; border: 1px solid var(--line); }
.primary-btn:hover, .secondary-btn:hover, .youtube-btn:hover { transform: translateY(-2px); }

.hero-art {
  height: 470px; position: relative; overflow: hidden; border-radius: 34px;
  background: linear-gradient(145deg, #edf9ff, #f6fbff);
  border: 1px solid #dceefa;
}
.grid-lines {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(15,120,213,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(15,120,213,.08) 1px, transparent 1px);
  background-size: 42px 42px;
  transform: perspective(500px) rotateX(55deg) scale(1.4);
  transform-origin: center bottom;
  opacity: .65;
}
.orb { position: absolute; border-radius: 50%; filter: blur(1px); }
.orb-one { width: 300px; height: 300px; background: radial-gradient(circle, rgba(32,200,213,.65), rgba(32,200,213,0)); top: 45px; left: 85px; }
.orb-two { width: 260px; height: 260px; background: radial-gradient(circle, rgba(14,120,213,.55), rgba(14,120,213,0)); right: 30px; bottom: 0; }
.floating-card {
  position: absolute; z-index: 2; min-width: 145px; padding: 20px 22px; border-radius: 18px;
  background: rgba(255,255,255,.82); border: 1px solid rgba(255,255,255,.95); box-shadow: 0 20px 45px rgba(19,79,130,.16);
  font-size: 21px; font-weight: 800; color: var(--navy); backdrop-filter: blur(12px);
}
.floating-card small { display: block; margin-top: 5px; color: var(--muted); font-size: 10px; letter-spacing: .12em; }
.card-one { top: 80px; right: 60px; transform: rotate(5deg); }
.card-two { top: 205px; left: 55px; transform: rotate(-5deg); }
.card-three { bottom: 70px; right: 75px; transform: rotate(3deg); }

.showcase { padding: 80px 0; background: var(--light); overflow: hidden; }
.section-heading {
  max-width: 1280px; margin: 0 auto 30px; padding: 0 28px;
  display: flex; align-items: end; justify-content: space-between; gap: 20px;
}
.section-heading h2, .youtube-copy h2, .video-copy h2, .support-section h2, .about-card h2 {
  margin: 10px 0 0; font-size: clamp(32px, 4vw, 50px); letter-spacing: -.04em; color: var(--navy);
}
.slider-controls { display: flex; gap: 8px; }
.slide-btn { width: 44px; height: 44px; border-radius: 50%; background: white; border: 1px solid var(--line); font-size: 19px; color: var(--navy); }
.slide-btn:hover { background: var(--navy); color: white; }

.slider-wrap { overflow: hidden; width: 100%; }
.slides {
  display: flex; gap: 22px; width: max-content; transition: transform .5s cubic-bezier(.2,.75,.25,1);
  padding-left: max(28px, calc((100vw - 1224px) / 2));
}
.slide {
  width: min(1120px, calc(100vw - 56px)); min-height: 470px; display: grid; grid-template-columns: 48% 52%;
  background: white; border: 1px solid var(--line); border-radius: 28px; overflow: hidden; box-shadow: 0 12px 35px rgba(31,79,123,.07);
}
.slide-visual { min-height: 470px; position: relative; overflow: hidden; }
.visual-label { position: absolute; top: 25px; left: 28px; font-size: 10px; font-weight: 800; letter-spacing: .18em; color: rgba(255,255,255,.9); z-index: 5; }
.visual-ai { background: linear-gradient(145deg, #062a72, #0876ce 55%, #20c8d5); }
.visual-training { background: linear-gradient(145deg, #12366e, #167fd2 55%, #1bc4ce); }
.visual-learning { background: linear-gradient(145deg, #082f69, #0b76c8 60%, #22bfcf); }

.ai-node, .step {
  position: absolute; z-index: 3; display: grid; place-items: center; width: 100px; height: 100px;
  border-radius: 24px; color: white; font-size: 12px; font-weight: 800; letter-spacing: .12em;
  border: 1px solid rgba(255,255,255,.45); background: rgba(255,255,255,.15); backdrop-filter: blur(9px);
}
.node-a { left: 12%; top: 24%; } .node-b { left: 43%; top: 47%; } .node-c { right: 10%; top: 25%; }
.ai-arrow, .growth-arrow { position: absolute; right: 18%; bottom: 15%; font-size: 100px; color: rgba(255,255,255,.75); }
.person-shape { position: absolute; width: 110px; height: 150px; border-radius: 60px 60px 25px 25px; background: rgba(255,255,255,.2); left: 43%; top: 28%; }
.person-shape::before { content: ""; position: absolute; width: 72px; height: 72px; border-radius: 50%; background: rgba(255,255,255,.35); left: 19px; top: -65px; }
.step { width: 60px; height: 60px; border-radius: 14px; font-size: 18px; }
.step-one { left: 12%; bottom: 20%; } .step-two { left: 31%; bottom: 30%; } .step-three { left: 50%; bottom: 40%; } .step-four { left: 69%; bottom: 50%; }
.book-shape { position: absolute; width: 230px; height: 170px; border-radius: 10px; border: 4px solid rgba(255,255,255,.55); left: 25%; top: 31%; transform: rotate(-7deg); }
.code-line { position: absolute; left: 35%; width: 120px; height: 8px; border-radius: 10px; background: rgba(255,255,255,.55); }
.line-one { top: 39%; } .line-two { top: 47%; width: 160px; } .line-three { top: 55%; width: 95px; }
.play-circle { position: absolute; right: 12%; bottom: 15%; width: 76px; height: 76px; display: grid; place-items: center; border-radius: 50%; color: var(--navy); background: white; box-shadow: 0 12px 30px rgba(0,0,0,.15); }

.slide-content { padding: 60px 55px; display: flex; flex-direction: column; justify-content: center; }
.tag { color: var(--blue); font-size: 10px; font-weight: 800; letter-spacing: .15em; }
.slide-content h3 { margin: 14px 0; font-size: clamp(34px, 4vw, 52px); letter-spacing: -.045em; color: var(--navy); }
.slide-content p { color: var(--muted); line-height: 1.8; font-size: 16px; max-width: 500px; }
.text-link { margin-top: 15px; color: var(--blue); font-size: 13px; font-weight: 800; }
.youtube-btn { align-self: flex-start; margin-top: 16px; color: white; background: var(--navy); border: 0; }

.slide-dots { display: flex; justify-content: center; gap: 7px; margin-top: 22px; }
.dot { width: 7px; height: 7px; border-radius: 10px; border: 0; background: #b8cce0; cursor: pointer; transition: .2s; }
.dot.active { width: 25px; background: var(--blue); }

.youtube-section {
  max-width: 1280px; margin: auto; padding: 100px 28px;
  display: grid; grid-template-columns: .75fr 1.25fr; gap: 60px; align-items: center;
}
.video-copy p { color: var(--muted); line-height: 1.8; max-width: 480px; margin: 22px 0 28px; }
.video-frame { aspect-ratio: 16/9; overflow: hidden; border-radius: 24px; background: #071c3d; box-shadow: var(--shadow); }
.video-frame iframe { width: 100%; height: 100%; border: 0; }

.support-section {
  max-width: 1280px; margin: 0 auto 80px; padding: 55px 60px;
  border-radius: 28px; background: linear-gradient(135deg, #062b68, #0d78cf);
  color: white; display: flex; align-items: center; justify-content: space-between; gap: 30px;
}
.support-section .eyebrow { color: #9ceaf0; }
.support-section h2 { color: white; }
.support-section p { color: rgba(255,255,255,.76); }
.support-section .primary-btn { background: white; color: var(--navy); box-shadow: none; }

.about-section { background: var(--light); padding: 80px 28px; }
.about-card { max-width: 800px; margin: auto; text-align: center; }
.about-card p { color: var(--muted); line-height: 1.8; font-size: 16px; }

footer {
  max-width: 1280px; margin: auto; padding: 35px 28px; display: flex; justify-content: space-between;
  gap: 25px; color: var(--muted); font-size: 11px;
}
footer div { display: grid; gap: 5px; }
footer strong { color: var(--navy); font-size: 13px; }

.search-overlay, .me-panel {
  position: fixed; inset: 0; z-index: 2000; display: none; place-items: center;
  background: rgba(3,22,49,.5); backdrop-filter: blur(8px); padding: 20px;
}
.search-overlay.open, .me-panel.open { display: grid; }
.search-box, .me-card {
  position: relative; width: min(650px, 100%); background: white; border-radius: 25px; padding: 42px;
  box-shadow: 0 30px 80px rgba(0,0,0,.2);
}
.close-btn { position: absolute; top: 18px; right: 20px; font-size: 28px; color: var(--muted); }
.search-box h2 { color: var(--navy); font-size: 32px; letter-spacing: -.04em; }
.search-input-wrap { display: flex; align-items: center; gap: 14px; border: 1px solid var(--line); padding: 13px 16px; border-radius: 12px; margin-top: 24px; }
.search-input-wrap input { border: 0; outline: 0; width: 100%; color: var(--ink); }
.search-suggestions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 15px; }
.search-suggestions a { padding: 9px 12px; border-radius: 20px; background: var(--light); color: var(--blue); font-size: 12px; font-weight: 700; }
.me-card { text-align: center; width: min(420px, 100%); }
.avatar { width: 70px; height: 70px; display: grid; place-items: center; margin: 0 auto 18px; border-radius: 50%; color: white; background: linear-gradient(135deg,#0b65c8,#20c8d5); font-size: 28px; font-weight: 800; }
.me-card h3 { color: var(--navy); font-size: 25px; }
.me-card p { color: var(--muted); line-height: 1.7; margin-bottom: 25px; }

@media (max-width: 900px) {
  .desktop-nav { display: none; }
  .mobile-menu-btn { display: grid; gap: 4px; width: 40px; height: 40px; place-content: center; border: 0; background: var(--light); border-radius: 10px; cursor: pointer; }
  .mobile-menu-btn span { width: 19px; height: 2px; background: var(--navy); }
  .mobile-nav { padding: 10px 28px 20px; border-top: 1px solid var(--line); background: white; }
  .mobile-nav.open { display: grid; }
  .mobile-nav a, .mobile-nav button { padding: 12px 0; text-align: left; border: 0; background: transparent; color: var(--ink); font-weight: 700; cursor: pointer; }
  .hero { grid-template-columns: 1fr; padding-top: 55px; }
  .hero-art { height: 360px; }
  .youtube-section { grid-template-columns: 1fr; }
  .support-section { margin: 0 28px 60px; }
}

@media (max-width: 680px) {
  .nav-shell { min-height: 68px; padding: 0 18px; }
  .brand { min-width: 0; }
  .brand img { width: 45px; height: 45px; }
  .brand-text strong { font-size: 15px; }
  .hero { padding: 45px 18px 55px; }
  .hero h1 { font-size: 48px; }
  .hero p { font-size: 16px; }
  .hero-art { height: 300px; border-radius: 25px; }
  .floating-card { min-width: 100px; padding: 13px; font-size: 15px; }
  .card-one { right: 22px; top: 45px; }
  .card-two { left: 22px; top: 135px; }
  .card-three { right: 25px; bottom: 35px; }
  .section-heading { padding: 0 18px; align-items: center; }
  .section-heading h2 { font-size: 35px; }
  .slides { padding-left: 18px; gap: 14px; }
  .slide { width: calc(100vw - 36px); grid-template-columns: 1fr; }
  .slide-visual { min-height: 280px; }
  .slide-content { padding: 34px 28px 40px; }
  .slide-content h3 { font-size: 38px; }
  .youtube-section { padding: 70px 18px; gap: 35px; }
  .support-section { margin: 0 18px 50px; padding: 38px 28px; flex-direction: column; align-items: flex-start; }
  footer { padding: 28px 18px; flex-direction: column; }
  .search-box, .me-card { padding: 35px 25px; }
}