/* ---------- Tokens ---------- */
:root {
  --bg: #ffffff;
  --bg-soft: #f7f8fb;
  --bg-elev: #ffffff;
  --ink: #0b1220;
  --ink-2: #1c2536;
  --ink-3: #4b5568;
  --ink-4: #6b7488;
  --hair: #e6e9f0;
  --hair-strong: #d5dae4;
  --brand: #1E7BF7;
  --brand-ink: #0f56b6;
  --brand-tint: #eaf2ff;
  --accent: #ff7a1a;
  --accent-ink: #c85800;
  --ok: #16a34a;
  --shadow-sm: 0 1px 2px rgba(11, 18, 32, 0.06), 0 1px 3px rgba(11, 18, 32, 0.04);
  --shadow-md: 0 4px 14px rgba(11, 18, 32, 0.08), 0 2px 4px rgba(11, 18, 32, 0.04);
  --shadow-lg: 0 20px 40px -18px rgba(11, 18, 32, 0.28);
  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 22px;
  --font-display: "Fraunces", "Iowan Old Style", "Georgia", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

:root:not([data-theme="light"]) {
  @media (prefers-color-scheme: dark) {}
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0a0f1a;
    --bg-soft: #10172a;
    --bg-elev: #131c33;
    --ink: #f2f5fb;
    --ink-2: #e3e8f2;
    --ink-3: #a6afc2;
    --ink-4: #7f8a9e;
    --hair: #22304f;
    --hair-strong: #2c3d63;
    --brand: #64a4ff;
    --brand-ink: #93bfff;
    --brand-tint: #142544;
    --accent: #ff9a4a;
    --accent-ink: #ffb277;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 20px 40px -18px rgba(0, 0, 0, 0.75);
  }
}

:root[data-theme="dark"] {
  --bg: #0a0f1a;
  --bg-soft: #10172a;
  --bg-elev: #131c33;
  --ink: #f2f5fb;
  --ink-2: #e3e8f2;
  --ink-3: #a6afc2;
  --ink-4: #7f8a9e;
  --hair: #22304f;
  --hair-strong: #2c3d63;
  --brand: #64a4ff;
  --brand-ink: #93bfff;
  --brand-tint: #142544;
  --accent: #ff9a4a;
  --accent-ink: #ffb277;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 20px 40px -18px rgba(0, 0, 0, 0.75);
}

/* ---------- Base ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--brand-ink); text-decoration: none; }
a:hover { text-decoration: underline; }

p { margin: 0 0 1em; }
strong { font-weight: 600; color: var(--ink); }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
  line-height: 1.15;
}
h1 { font-size: clamp(2.4rem, 5.5vw, 3.75rem); font-weight: 600; }
h2 { font-size: clamp(1.75rem, 3.2vw, 2.4rem); }
h3 { font-size: 1.25rem; font-weight: 600; }
h4 { font-size: 1.05rem; font-weight: 600; }

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--brand);
  margin: 0 0 12px;
}

/* ---------- Layout ---------- */
.wrap { max-width: 800px; margin: 0 auto; padding: 0 24px; }
.wrap-wide { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

section { padding: 88px 0; border-top: 1px solid var(--hair); }
section:first-of-type { border-top: none; }

@media (max-width: 640px) {
  section { padding: 60px 0; }
  body { font-size: 16px; }
}

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--hair);
}
.nav-inner {
  max-width: 1080px; margin: 0 auto;
  padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink); }
.brand-mark {
  width: 26px; height: 26px; border-radius: 7px;
  background: var(--brand);
  color: white; font-weight: 800; font-size: 12px;
  display: grid; place-items: center;
  font-family: var(--font-body);
}
.brand-name { font-size: 0.95rem; letter-spacing: -0.01em; }
.brand-sub { color: var(--ink-4); font-weight: 500; font-size: 0.9rem; }
.nav a.nav-cta {
  background: var(--ink);
  color: var(--bg);
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: transform 0.15s ease, background 0.15s ease;
}
.nav a.nav-cta:hover { text-decoration: none; transform: translateY(-1px); background: var(--brand); }

/* ---------- Hero ---------- */
.hero {
  padding: 88px 0 72px;
  border-top: none;
  background:
    radial-gradient(1200px 500px at 90% -10%, var(--brand-tint), transparent 60%),
    radial-gradient(900px 400px at -10% 20%, color-mix(in srgb, var(--brand-tint) 60%, transparent), transparent 60%);
}
.hero .wrap-wide { position: relative; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
}
.hero-copy { min-width: 0; }
.hero-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--bg-elev);
  aspect-ratio: 4 / 5;
  transform: rotate(0.6deg);
}
.hero-image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
}
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero-image { max-width: 460px; margin: 0 auto; aspect-ratio: 4 / 5; transform: none; }
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 500;
}
.hero .headline-accent { color: var(--brand); font-style: italic; }
.hero .lede {
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  color: var(--ink-3);
  max-width: 620px;
  margin: 0 0 32px;
}
.hero-cta-row { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.hero-meta {
  color: var(--ink-4); font-size: 0.9rem;
  display: flex; gap: 14px; flex-wrap: wrap;
}
.hero-meta span { display: inline-flex; align-items: center; gap: 6px; }
.hero-meta .dot {
  width: 5px; height: 5px; border-radius: 999px; background: var(--ok);
  display: inline-block;
}

.hero-card {
  margin-top: 56px;
  background: var(--bg-elev);
  border: 1px solid var(--hair);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 28px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
}
.hero-card .stat {
  border-right: 1px solid var(--hair);
  padding-right: 20px;
}
.hero-card .stat:last-child { border-right: none; padding-right: 0; }
.hero-card .stat .num {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--brand);
  line-height: 1;
  margin-bottom: 6px;
}
.hero-card .stat .lbl { color: var(--ink-3); font-size: 0.95rem; }

@media (max-width: 720px) {
  .hero-card { grid-template-columns: 1fr; padding: 20px; gap: 14px; }
  .hero-card .stat { border-right: none; border-bottom: 1px solid var(--hair); padding: 0 0 14px; }
  .hero-card .stat:last-child { border-bottom: none; padding-bottom: 0; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  padding: 15px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  font-family: var(--font-body);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  text-decoration: none;
  line-height: 1;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 18px -6px color-mix(in srgb, var(--accent) 80%, transparent), inset 0 -1px 0 rgba(0,0,0,0.15);
}
.btn-primary:hover {
  background: var(--accent-ink);
  color: #fff;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 10px 24px -8px color-mix(in srgb, var(--accent) 90%, transparent), inset 0 -1px 0 rgba(0,0,0,0.15);
}
.btn-primary:active { transform: translateY(0); }
.btn-ghost {
  background: transparent;
  color: var(--ink-2);
  border-color: var(--hair-strong);
}
.btn-ghost:hover {
  background: var(--bg-soft);
  color: var(--ink);
  text-decoration: none;
  transform: translateY(-1px);
}
.btn-arrow { transition: transform 0.15s ease; }
.btn-primary:hover .btn-arrow { transform: translateX(3px); }

/* ---------- Content blocks ---------- */
.section-head { max-width: 720px; margin: 0 0 40px; }
.section-head p { color: var(--ink-3); font-size: 1.1rem; }

.check-list, .cross-list { list-style: none; padding: 0; margin: 0 0 20px; }
.check-list li, .cross-list li {
  padding: 12px 0 12px 34px;
  position: relative;
  border-bottom: 1px solid var(--hair);
  color: var(--ink-2);
}
.check-list li:last-child, .cross-list li:last-child { border-bottom: none; }
.check-list li::before, .cross-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 16px;
  width: 22px; height: 22px;
  border-radius: 999px;
  display: block;
}
.check-list li::before {
  background: var(--brand-tint) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'><path d='M5 10.5l3 3 7-7' stroke='%231E7BF7' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round' fill='none'/></svg>") no-repeat center / 14px;
}
.cross-list li::before {
  background: color-mix(in srgb, var(--ink-4) 15%, transparent) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'><path d='M6 6l8 8M14 6l-8 8' stroke='%236b7488' stroke-width='2.2' stroke-linecap='round' fill='none'/></svg>") no-repeat center / 12px;
}

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
@media (max-width: 720px) { .split { grid-template-columns: 1fr; gap: 20px; } }
.split h3 { margin-bottom: 12px; }

/* ---------- Curriculum ---------- */
.acts { display: grid; gap: 16px; }
.act {
  background: var(--bg-elev);
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  padding: 24px 26px;
  box-shadow: var(--shadow-sm);
}
.act-head {
  display: flex; align-items: baseline; gap: 12px;
  margin-bottom: 6px;
}
.act-num {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--brand);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.act h3 { margin: 0; }
.act-sub { color: var(--ink-3); margin: 4px 0 14px; }
.lesson-list { list-style: none; padding: 0; margin: 0; }
.lesson-list li {
  padding: 8px 0;
  border-top: 1px dashed var(--hair);
  display: flex; gap: 12px;
  color: var(--ink-2);
  font-size: 0.98rem;
}
.lesson-list li:first-child { border-top: none; }
.lesson-list .n {
  color: var(--ink-4);
  font-variant-numeric: tabular-nums;
  min-width: 26px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
}
.tracks { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
@media (max-width: 720px) { .tracks { grid-template-columns: 1fr; } }
.track {
  border: 1px solid var(--hair);
  border-radius: var(--radius-sm);
  padding: 16px;
  background: var(--bg-soft);
}
.track h4 {
  color: var(--brand);
  font-family: var(--font-body);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  margin: 0 0 6px;
}
.track p { margin: 0; color: var(--ink-2); font-size: 0.95rem; }

/* ---------- Bio ---------- */
.bio {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 28px;
  align-items: start;
}
.bio .avatar {
  width: 120px; height: 120px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-ink) 100%);
  color: #fff;
  font-family: var(--font-display);
  font-size: 2.6rem;
  display: grid; place-items: center;
  box-shadow: var(--shadow-md);
}
.bio p:first-of-type { font-size: 1.05rem; }
@media (max-width: 600px) {
  .bio { grid-template-columns: 1fr; gap: 16px; }
  .bio .avatar { width: 80px; height: 80px; font-size: 1.8rem; }
}

/* ---------- Testimonials ---------- */
.testimonials { display: grid; gap: 18px; }
.tst {
  border: 2px dashed var(--hair-strong);
  border-radius: var(--radius);
  padding: 22px 24px;
  background: var(--bg-soft);
  position: relative;
}
.tst-tag {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-4);
  background: var(--bg-elev);
  border: 1px solid var(--hair);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.tst blockquote {
  margin: 0 0 10px;
  font-size: 1.05rem;
  color: var(--ink-3);
  font-style: italic;
  line-height: 1.55;
}
.tst .cite { color: var(--ink-4); font-size: 0.9rem; }

/* ---------- Pricing ---------- */
.pricing { display: grid; gap: 18px; grid-template-columns: 1fr 1fr; }
@media (max-width: 720px) { .pricing { grid-template-columns: 1fr; } }
.price-card {
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  padding: 24px;
  background: var(--bg-elev);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.price-card.featured {
  grid-column: 1 / -1;
  border-color: var(--brand);
  background: linear-gradient(180deg, var(--brand-tint) 0%, var(--bg-elev) 60%);
  padding: 32px;
  box-shadow: var(--shadow-md);
}
.price-tag {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand);
  font-weight: 700;
  margin-bottom: 10px;
}
.price-card h3 { margin: 0 0 4px; font-family: var(--font-display); }
.price-card .price {
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: var(--ink);
  margin: 8px 0 4px;
}
.price-card .price small {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--ink-4);
  font-weight: 500;
}
.price-card p { color: var(--ink-3); margin: 6px 0 0; }
.price-terms {
  color: var(--ink-4);
  font-size: 0.9rem;
  text-align: center;
  margin-top: 8px;
}

/* ---------- FAQ ---------- */
.faq details {
  border-bottom: 1px solid var(--hair);
  padding: 20px 0;
}
.faq details[open] summary { color: var(--brand); }
.faq summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.15rem;
  color: var(--ink);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: baseline;
  transition: color 0.15s ease;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  color: var(--ink-4);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1.6rem;
  line-height: 1;
  transition: transform 0.2s ease;
}
.faq details[open] summary::after { content: "−"; color: var(--brand); }
.faq .a {
  color: var(--ink-3);
  padding-top: 12px;
  font-size: 1rem;
}

/* ---------- Grad offer ---------- */
.grad-card {
  border: 1px solid var(--hair);
  background:
    radial-gradient(600px 240px at 100% 0%, var(--brand-tint), transparent 60%),
    var(--bg-elev);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
}
.grad-card h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  margin-bottom: 12px;
}

/* ---------- Final CTA ---------- */
.final {
  background: var(--ink);
  color: #fff;
  border-top: none;
  border-bottom: none;
}
.final .wrap { max-width: 720px; text-align: center; }
.final h2 {
  color: #fff;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  margin-bottom: 16px;
}
.final p { color: #b6c1d6; font-size: 1.1rem; margin-bottom: 28px; }
.final .price-line {
  color: #fff;
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin: 0 0 24px;
}
.final .btn-primary { padding: 18px 36px; font-size: 1.05rem; }

/* ---------- Footer ---------- */
.foot {
  padding: 40px 0;
  border-top: 1px solid var(--hair);
  color: var(--ink-4);
  font-size: 0.9rem;
}
.foot .wrap { max-width: 1080px; }
.foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 24px; }
@media (max-width: 640px) { .foot-grid { grid-template-columns: 1fr; } }
.foot h5 {
  font-family: var(--font-body);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  margin: 0 0 8px;
}
.foot p { margin: 0 0 6px; }
.foot small { color: var(--ink-4); font-size: 0.8rem; }