:root {
  --ink: #18202b;
  --muted: #667386;
  --paper: #f7f4ef;
  --panel: #ffffff;
  --line: #d9dfd9;
  --green: #1f6d58;
  --green-soft: #e3f3ec;
  --blue: #315f96;
  --blue-soft: #e8f0fb;
  --coral: #b85545;
  --coral-soft: #fae8e4;
  --gold: #946b26;
  --gold-soft: #fff2d5;
  --shadow: 0 18px 45px rgba(32, 38, 48, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

button,
input,
textarea {
  font: inherit;
}

a {
  color: inherit;
}

.site-nav {
  position: fixed;
  top: 14px;
  left: 50%;
  z-index: 20;
  width: min(1120px, calc(100% - 28px));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 10px 30px rgba(32, 38, 48, 0.08);
  backdrop-filter: blur(14px);
  transform: translateX(-50%);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 820;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  aspect-ratio: 1;
  border-radius: 50%;
  color: #fff;
  background: var(--green);
  font-weight: 840;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  padding: 8px 10px;
  border-radius: 6px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 720;
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--ink);
  background: var(--green-soft);
}

.nav-links .nav-cta {
  color: #fff;
  background: var(--green);
}

.nav-links .nav-cta:hover {
  color: #fff;
  background: #185947;
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: end;
  overflow: hidden;
  background: #23352f;
}

.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(20, 25, 30, 0.82), rgba(20, 25, 30, 0.42) 50%, rgba(20, 25, 30, 0.1)),
    linear-gradient(0deg, rgba(247, 244, 239, 1), rgba(247, 244, 239, 0) 28%);
}

.hero-content {
  position: relative;
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 128px 0 86px;
  color: #fff;
}

.eyebrow,
.section-kicker {
  margin: 0 0 8px;
  color: var(--green);
  font-size: 13px;
  font-weight: 780;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #d9f4e9;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 840px;
  margin-bottom: 16px;
  font-size: clamp(44px, 8vw, 88px);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  font-size: clamp(30px, 5vw, 54px);
  line-height: 1.04;
  letter-spacing: 0;
}

h3 {
  font-size: 21px;
  line-height: 1.25;
}

.hero-copy {
  max-width: 700px;
  margin: 0 0 26px;
  color: rgba(255, 255, 255, 0.92);
  font-size: 20px;
}

.hero-actions,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.button,
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 7px;
  font-weight: 780;
  text-decoration: none;
}

.button {
  color: #fff;
  background: var(--green);
}

.button:hover {
  background: #185947;
}

.button-secondary {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.48);
  background: rgba(255, 255, 255, 0.12);
}

.button-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
}

.shell {
  width: min(1120px, calc(100% - 28px));
  margin: 0 auto 96px;
}

.section {
  padding: 64px 0;
  border-top: 1px solid rgba(143, 154, 139, 0.26);
}

.section:first-child {
  border-top: 0;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 26px;
}

.section-note,
.muted {
  color: var(--muted);
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: -38px;
  position: relative;
  z-index: 2;
}

.proof-item,
.panel,
.price-panel,
.legal-panel {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 10px 30px rgba(32, 38, 48, 0.06);
}

.proof-item strong {
  display: block;
  margin-bottom: 6px;
  font-size: 18px;
}

.proof-item p,
.panel p,
.legal-panel p,
.price-panel p {
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 18px;
}

.span-4 {
  grid-column: span 4;
}

.span-5 {
  grid-column: span 5;
}

.span-6 {
  grid-column: span 6;
}

.span-7 {
  grid-column: span 7;
}

.span-12 {
  grid-column: span 12;
}

.lesson-preview {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.8fr);
  gap: 22px;
  align-items: stretch;
}

.preview-card {
  min-height: 440px;
  display: grid;
  align-content: end;
  padding: 24px;
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(24, 32, 43, 0.05), rgba(24, 32, 43, 0.76)),
    url("images/lesson-01/ill_01_arrival_hall.png") center / cover;
  color: #fff;
  overflow: hidden;
}

.preview-card h3 {
  max-width: 520px;
  margin-bottom: 8px;
  font-size: clamp(28px, 4vw, 44px);
}

.preview-card p {
  max-width: 620px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.9);
}

.check-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  margin: 10px 0;
  padding-left: 28px;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 860;
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.scene-pill {
  display: block;
  min-height: 88px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: #263340;
  font-weight: 760;
  text-decoration: none;
  transition: transform 140ms ease, box-shadow 140ms ease, border-color 140ms ease;
}

.scene-pill:hover {
  border-color: rgba(31, 109, 88, 0.45);
  box-shadow: 0 12px 30px rgba(32, 38, 48, 0.1);
  transform: translateY(-2px);
}

.scene-pill span {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 520;
}

.price-wrap {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(340px, 0.55fr);
  gap: 22px;
  align-items: start;
}

.price-panel {
  position: sticky;
  top: 94px;
}

.price {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 10px 0 12px;
}

.price strong {
  font-size: 64px;
  line-height: 0.95;
}

.price span {
  color: var(--muted);
  font-weight: 720;
}

.fine-print {
  margin-top: 14px;
  color: var(--muted);
  font-size: 13px;
}

.faq-list {
  display: grid;
  gap: 10px;
}

.faq-list details {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.faq-list summary {
  cursor: pointer;
  color: var(--ink);
  font-weight: 780;
}

.faq-list p {
  margin: 12px 0 0;
  color: var(--muted);
}

.site-footer {
  padding: 34px 0 48px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.footer-inner {
  width: min(1120px, calc(100% - 28px));
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
}

.footer-links a {
  color: var(--muted);
  font-weight: 650;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--ink);
}

.legal-page {
  padding-top: 112px;
}

.legal-page .shell {
  width: min(920px, calc(100% - 28px));
}

.legal-panel h1 {
  margin-bottom: 14px;
  font-size: clamp(36px, 6vw, 64px);
}

.legal-panel h2 {
  margin-top: 34px;
  font-size: 26px;
}

.legal-panel ul {
  color: var(--muted);
  padding-left: 22px;
}

.legal-panel li {
  margin: 8px 0;
}

.callout {
  margin: 18px 0;
  padding: 16px 18px;
  border-left: 4px solid var(--green);
  border-radius: 0 8px 8px 0;
  color: #163427;
  background: var(--green-soft);
}

.warning {
  margin: 18px 0;
  padding: 16px 18px;
  border-radius: 8px;
  color: var(--gold);
  background: var(--gold-soft);
}

@media (max-width: 860px) {
  .site-nav {
    position: absolute;
    align-items: flex-start;
  }

  .nav-links {
    display: none;
  }

  .hero {
    min-height: 86vh;
  }

  .hero-content {
    padding: 112px 0 64px;
  }

  .proof-strip,
  .lesson-preview,
  .price-wrap,
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    display: grid;
  }

  .grid,
  .scene-grid {
    grid-template-columns: 1fr;
  }

  .span-4,
  .span-5,
  .span-6,
  .span-7,
  .span-12 {
    grid-column: auto;
  }

  .price-panel {
    position: static;
  }

  .preview-card {
    min-height: 340px;
  }
}