:root {
  --bg: #fafafc;
  --panel: #f1f1f7;
  --white: #ffffff;
  --ink: #10142b;
  --ink-soft: #4b4f6b;
  --navy: #1b2456;
  --blue: #3a5cff;
  --violet: #7b4fe0;
  --violet-deep: #5b2fb8;
  --line: #e3e3ee;
  --line-strong: #c7c7dc;
  --grad: linear-gradient(100deg, var(--blue), var(--violet));
  --display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --body: 'Manrope', 'Segoe UI', sans-serif;
  --mono: 'IBM Plex Mono', 'Courier New', monospace;
  --max: 1180px;
  --radius: 4px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--violet-deep); text-decoration: none; }
a:hover { text-decoration: underline; }
button, a { -webkit-tap-highlight-color: transparent; }

h1, h2, h3 { margin: 0 0 .55em; color: var(--navy); font-family: var(--display); line-height: 1.1; letter-spacing: -.02em; }
h1 { font-size: clamp(2.55rem, 6vw, 4.75rem); }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.8rem); }
h3 { font-size: 1.1rem; }
p { margin: 0 0 1em; color: var(--ink-soft); }
strong { color: inherit; }

.container { width: min(100% - 2.5rem, var(--max)); margin-inline: auto; }
section { padding: clamp(4rem, 8vw, 7rem) 0; }
.section-alt { background: var(--panel); }

.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 1000; padding: .8rem 1rem; background: var(--navy); color: #fff; }
.skip-link:focus { top: 1rem; }

.site-header { position: sticky; top: 0; z-index: 100; border-bottom: 1px solid var(--line); background: rgba(250, 250, 252, .94); backdrop-filter: blur(10px); }
.header-inner { min-height: 72px; display: flex; align-items: center; gap: 1.2rem; }
.brand { display: flex; align-items: center; gap: .75rem; min-width: max-content; color: var(--navy); font-family: var(--display); font-weight: 700; }
.brand:hover { text-decoration: none; }
.brand-mark { width: 34px; height: 34px; border-radius: 50%; background: var(--grad); box-shadow: 0 0 0 7px rgba(123,79,224,.07); }
.brand-sub { display: block; color: var(--ink-soft); font-family: var(--mono); font-size: .62rem; font-weight: 400; letter-spacing: .06em; }
.main-nav { display: flex; align-items: center; gap: 1.35rem; margin-left: auto; }
.main-nav a { color: var(--ink); font-size: .86rem; font-weight: 700; }
.main-nav a:hover { color: var(--violet-deep); text-decoration: none; }
.header-cta { padding: .68rem 1rem !important; font-size: .83rem !important; }
.nav-toggle { display: none; margin-left: auto; border: 0; background: transparent; padding: .55rem; }
.nav-toggle span { display: block; width: 24px; height: 2px; margin: 4px 0; background: var(--navy); }

.btn { display: inline-flex; justify-content: center; align-items: center; min-height: 48px; padding: .85rem 1.45rem; border: 1.5px solid transparent; border-radius: var(--radius); font: 700 .92rem var(--body); cursor: pointer; transition: transform .16s ease, box-shadow .16s ease, background .16s ease; }
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:focus-visible, button:focus-visible, a:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }
.btn-primary { color: #fff; background: var(--grad); box-shadow: 0 12px 30px rgba(91,47,184,.16); }
.btn-primary:hover { box-shadow: 0 14px 34px rgba(91,47,184,.28); }
.btn-secondary { color: var(--navy); border-color: var(--navy); background: transparent; }
.btn-secondary:hover { color: #fff; background: var(--navy); }
.btn-light { color: var(--navy); background: #fff; }

.hero { padding-top: clamp(3rem, 7vw, 5.5rem); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: clamp(2rem, 5vw, 5rem); }
.hero-badges { display: flex; flex-wrap: wrap; gap: .55rem; margin-bottom: 1.4rem; }
.pill { padding: .35rem .8rem; border: 1px solid var(--line-strong); border-radius: 999px; color: var(--navy); font: 600 .72rem var(--mono); letter-spacing: .03em; }
.eyebrow { display: inline-flex; align-items: center; gap: .55rem; margin: 0 0 .95rem; color: var(--violet-deep); font: 600 .75rem var(--mono); letter-spacing: .14em; text-transform: uppercase; }
.eyebrow::before { content: ''; width: 22px; height: 1px; background: currentColor; }
.eyebrow.light { color: #aebdff; }
.hero h1 span { color: transparent; background: var(--grad); -webkit-background-clip: text; background-clip: text; }
.hero-lead { max-width: 52ch; font-size: clamp(1.05rem, 1.7vw, 1.25rem); }
.hero-facts { display: grid; gap: .75rem; margin: 1.7rem 0; }
.hero-facts div { display: grid; grid-template-columns: 7rem 1fr; gap: 1rem; padding-bottom: .75rem; border-bottom: 1px solid var(--line); }
.hero-facts small { color: var(--violet-deep); font: 600 .72rem var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.hero-facts strong { color: var(--navy); font-size: .95rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.7rem; }
.visual-frame { position: relative; padding: 1.5rem; border: 1px solid var(--line); background: rgba(255,255,255,.7); box-shadow: 0 24px 70px rgba(27,36,86,.08); }
.visual-frame::before, .visual-frame::after { content: ''; position: absolute; width: 74px; height: 74px; border: 1px solid rgba(123,79,224,.25); }
.visual-frame::before { top: -18px; right: -18px; border-left: 0; border-bottom: 0; }
.visual-frame::after { bottom: -18px; left: -18px; border-right: 0; border-top: 0; }
.visual-label { margin-top: -.6rem; color: var(--ink-soft); font: 500 .7rem var(--mono); letter-spacing: .09em; text-align: center; text-transform: uppercase; }
.visual-frame img { display: block; width: 100%; height: auto; }


.quick-strip { padding: 1.7rem 0; color: #fff; background: var(--navy); }
.quick-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.quick-grid div { padding: .4rem 1.3rem; border-left: 1px solid rgba(255,255,255,.16); text-align: center; }
.quick-grid div:first-child { border-left: 0; }
.quick-grid span { display: block; font: 700 2rem var(--display); }
.quick-grid p { margin: 0; color: #c7cef5; font-size: .78rem; }

.split { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(2rem, 6vw, 6rem); align-items: start; }
.prose { max-width: 66ch; }
.prose p { font-size: 1.03rem; }
.course-note { margin-top: 1.15rem; padding: 1rem 1.1rem; border-left: 3px solid var(--blue); background: rgba(58,92,255,.06); color: var(--ink); font-size: .98rem; }
.course-note strong { color: var(--navy); }

.section-head { max-width: 760px; margin-bottom: 2.4rem; }
.section-head.compact { margin-bottom: 1.6rem; }
.topic-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1rem; }
.topic-card { grid-column: span 2; min-height: 245px; padding: 1.45rem; border: 1px solid var(--line); background: var(--white); }
.topic-card:nth-child(4), .topic-card:nth-child(5) { grid-column: span 3; }
.topic-card > span { display: inline-block; margin-bottom: 2.2rem; color: var(--violet-deep); font: 600 .78rem var(--mono); }
.topic-card p { margin-bottom: 0; font-size: .9rem; }

.info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.info-card { min-height: 255px; padding: 1.5rem; border: 1px solid var(--line); background: #fff; }
.icon { width: 46px; height: 46px; display: grid; place-items: center; margin-bottom: 2.2rem; border: 1px solid var(--line-strong); color: var(--violet-deep); font: 600 .78rem var(--mono); }
.info-card p { font-size: .92rem; }
.text-link { font-size: .84rem; font-weight: 700; }

.pricing-section { color: #fff; background: var(--navy); }
.pricing-section h2 { color: #fff; }
.pricing-section p { color: #b9c0ed; }
.pricing-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(2rem, 6vw, 6rem); align-items: start; }
.included-note { margin-top: 2rem; padding: 1rem 1.1rem; border-left: 2px solid #9cb4ff; background: rgba(255,255,255,.05); }
.included-note p { margin: .4rem 0 0; font-size: .9rem; }
.price-panel { border: 1px solid rgba(255,255,255,.18); background: rgba(255,255,255,.04); }
.price-main { padding: 1.55rem; border-bottom: 1px solid rgba(255,255,255,.14); }
.price-main span, .price-row span { color: #cfd5f7; font-size: .82rem; }
.price-main strong { display: block; margin-top: .3rem; font: 700 clamp(2rem, 4vw, 3.2rem) var(--display); color: #fff; }
.price-main small, .price-row small { display: block; color: #aeb6e7; font-size: .72rem; }
.price-row { display: grid; grid-template-columns: 1fr auto; gap: .4rem 1rem; align-items: center; padding: 1rem 1.55rem; border-bottom: 1px solid rgba(255,255,255,.1); }
.price-row strong { color: #fff; font-size: .92rem; text-align: right; }
.price-row small { grid-column: 1 / -1; }
.price-row.highlight { background: rgba(58,92,255,.12); }
.price-row.sold-out strong { color: #ffcad8; font: 700 .76rem var(--mono); letter-spacing: .07em; }

.payment-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(2rem, 6vw, 6rem); }
.payment-steps { display: grid; gap: .9rem; }
.payment-step { display: grid; grid-template-columns: 44px 1fr; gap: 1rem; padding: 1.2rem; border: 1px solid var(--line); background: #fff; }
.payment-step > span { width: 44px; height: 44px; display: grid; place-items: center; color: #fff; background: var(--grad); font: 700 1rem var(--display); }
.payment-step p { margin: .35rem 0 0; font-size: .88rem; }

.cta-section { color: #fff; background: linear-gradient(120deg, #1b2456, #252b70); }
.cta-section h2 { color: #fff; }
.cta-section p { color: #c5cbef; }
.cta-inner { display: grid; grid-template-columns: 1.25fr .75fr; align-items: center; gap: 2rem; }
.cta-actions { display: flex; flex-direction: column; align-items: stretch; gap: .75rem; }
.copy-email { min-height: 44px; border: 1px solid rgba(255,255,255,.28); color: #fff; background: transparent; font: 700 .84rem var(--body); cursor: pointer; }
.copy-email:hover { background: rgba(255,255,255,.08); }
.copy-status { min-height: 1.3em; color: #c5cbef; font-size: .75rem; text-align: center; }

footer { padding: 2.4rem 0 1.2rem; border-top: 1px solid var(--line); background: #fff; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr auto; gap: 2rem; align-items: start; }
.footer-grid strong { color: var(--navy); font-family: var(--display); }
.footer-grid p { margin: .3rem 0 0; font-size: .78rem; }
.footer-links { display: flex; gap: 1rem; font-size: .82rem; font-weight: 700; }
.footer-bottom { margin-top: 1.8rem; padding-top: 1rem; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: .72rem; }

@media (max-width: 950px) {
  .main-nav { display: none; position: absolute; top: 72px; left: 0; right: 0; padding: 1.2rem; border-bottom: 1px solid var(--line); background: #fff; flex-direction: column; align-items: flex-start; }
  .main-nav.open { display: flex; }
  .header-cta { display: none; }
  .nav-toggle { display: block; }
  .hero-grid, .split, .pricing-grid, .payment-grid, .cta-inner { grid-template-columns: 1fr; }
  .hero-visual { max-width: 620px; margin-inline: auto; }
  .topic-grid { grid-template-columns: 1fr 1fr; }
  .topic-card, .topic-card:nth-child(4), .topic-card:nth-child(5) { grid-column: auto; }
  .topic-card:last-child { grid-column: 1 / -1; }
}

@media (max-width: 700px) {
  .container { width: min(100% - 2rem, var(--max)); }
  .brand-sub { max-width: 25ch; white-space: normal; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; }
  .hero-facts div { grid-template-columns: 1fr; gap: .2rem; }
  .quick-grid { grid-template-columns: 1fr 1fr; gap: 1rem 0; }
  .quick-grid div:nth-child(3) { border-left: 0; }
  .topic-grid, .info-grid { grid-template-columns: 1fr; }
  .topic-card:last-child { grid-column: auto; }
  .price-row { grid-template-columns: 1fr; }
  .price-row strong { text-align: left; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.25rem; }
  .footer-links { flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .001ms !important; animation-duration: .001ms !important; }
}

@media print {
  .site-header, .hero-actions, .cta-section, .copy-email { display: none !important; }
  body { background: #fff; color: #000; }
  section { padding: 1.5rem 0; break-inside: avoid; }
  .pricing-section { color: #000; background: #fff; }
  .pricing-section h2, .price-main strong, .price-row strong { color: #000; }
  .pricing-section p, .price-main span, .price-row span, .price-row small { color: #333; }
  .price-panel { border-color: #aaa; }
}