:root {
  --bg: #f5f7f6;
  --paper: #ffffff;
  --ink: #111827;
  --muted: #4b5563;
  --line: #dbe1e3;
  --navy: #10243e;
  --blue: #2459d6;
  --teal: #0f766e;
  --gold: #b7791f;
  --soft-blue: #e8f0ff;
  --soft-teal: #e3f5f2;
  --shadow: 0 18px 40px rgba(16, 36, 62, 0.10);
  --max: 1120px;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, Arial, Helvetica, sans-serif;
  line-height: 1.55;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

.container {
  width: min(92%, var(--max));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  width: 100%;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px clamp(18px, 4vw, 42px);
  color: #fff;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.94);
  color: var(--ink);
  box-shadow: 0 10px 26px rgba(17, 24, 39, 0.08);
  backdrop-filter: blur(14px);
}

.brand,
.nav,
.header-cta {
  display: inline-flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

.brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-size: 0.85rem;
}

.nav {
  gap: 24px;
  font-size: 0.94rem;
  font-weight: 700;
}

.nav a,
.header-cta {
  text-decoration: none;
}

.header-cta {
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-weight: 800;
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: end;
  overflow: hidden;
  color: #fff;
  padding: 128px 0 72px;
  isolation: isolate;
}

.hero-bg,
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -2;
}

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

.hero-overlay {
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(12, 22, 36, 0.95) 0%, rgba(12, 22, 36, 0.76) 46%, rgba(12, 22, 36, 0.30) 100%),
    linear-gradient(180deg, rgba(12, 22, 36, 0.16) 0%, rgba(12, 22, 36, 0.86) 100%);
}

.hero-content {
  max-width: var(--max);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #9df4e4;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 18px;
  font-family: "Source Serif 4", Georgia, serif;
  font-size: clamp(3rem, 8vw, 6.8rem);
  line-height: 0.92;
  letter-spacing: 0;
}

h2 {
  max-width: 820px;
  margin-bottom: 18px;
  font-family: "Source Serif 4", Georgia, serif;
  font-size: clamp(2rem, 4vw, 3.7rem);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.08rem;
  line-height: 1.25;
}

p {
  color: var(--muted);
}

.hero-copy {
  max-width: 670px;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(1.04rem, 2vw, 1.32rem);
}

.hero-actions,
.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-actions {
  margin-top: 28px;
}

.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 12px 22px rgba(36, 89, 214, 0.26);
}

.button-light {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.42);
  color: #fff;
}

.button.full {
  width: 100%;
}

.hero-proof {
  max-width: 760px;
  margin-top: 34px;
}

.hero-proof span {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.10);
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.9rem;
  font-weight: 700;
}

.decision-strip {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  padding: 34px 0;
}

.strip-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 36px;
  align-items: center;
}

.strip-grid h2 {
  margin-bottom: 0;
  font-size: clamp(1.6rem, 3vw, 2.6rem);
}

.clean-list,
.check-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.clean-list li,
.check-list li {
  margin: 8px 0;
}

.section {
  padding: 76px 0;
}

.card-grid {
  display: grid;
  gap: 18px;
  margin-top: 28px;
}

.card-grid.three {
  grid-template-columns: repeat(3, 1fr);
}

.card-grid.two {
  grid-template-columns: repeat(2, 1fr);
}

.card,
.testimonial,
.purchase-box,
.feature-stack article,
.faq details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.card {
  min-height: 190px;
  padding: 24px;
  box-shadow: 0 10px 28px rgba(17, 24, 39, 0.04);
}

.accent-card {
  background: linear-gradient(135deg, var(--soft-blue), #fff 62%);
  border-color: #c7d8ff;
}

.section-ink {
  background: var(--navy);
  color: #fff;
}

.section-ink p {
  color: rgba(255, 255, 255, 0.76);
}

.section-ink .eyebrow {
  color: #9df4e4;
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 46px;
  align-items: start;
}

.feature-stack {
  display: grid;
  gap: 14px;
}

.feature-stack article {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 6px 18px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.16);
}

.feature-stack h3,
.feature-stack p {
  grid-column: 2;
}

.feature-number {
  grid-row: 1 / span 2;
  color: #9df4e4;
  font-weight: 800;
}

.offer {
  background: linear-gradient(135deg, var(--soft-teal), #f8fafc);
}

.offer-panel {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 34px;
  align-items: center;
}

.purchase-box {
  padding: 26px;
  box-shadow: var(--shadow);
}

.purchase-label {
  margin-bottom: 8px;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.price {
  margin: 10px 0 14px;
  color: var(--ink);
  font-size: clamp(1.6rem, 3vw, 2.35rem);
  line-height: 1;
  font-weight: 800;
}

.price span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.35;
  font-weight: 700;
}

.coverage {
  background: #fff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.coverage-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 28px 0 18px;
}

.coverage-summary {
  min-height: 122px;
  display: grid;
  align-content: center;
  gap: 4px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(135deg, #fff, var(--soft-teal));
}

.coverage-summary strong {
  color: var(--navy);
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 0.95;
}

.coverage-summary span {
  color: var(--muted);
  font-weight: 800;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
}

th,
td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

th {
  background: var(--navy);
  color: #fff;
  font-size: 0.86rem;
  text-transform: uppercase;
}

td:not(:first-child),
th:not(:first-child) {
  text-align: center;
}

tfoot td {
  background: var(--soft-blue);
  color: var(--ink);
  font-weight: 800;
}

.release-note {
  margin: 14px 0 0;
  color: var(--teal);
  font-weight: 800;
}

.testimonial {
  min-height: 160px;
  padding: 24px;
  background: #fff;
}

.testimonial p {
  color: var(--ink);
  font-weight: 700;
}

.testimonial span {
  display: block;
  margin-top: 16px;
  color: var(--teal);
  font-size: 0.9rem;
  font-weight: 800;
}

.instructor {
  background: #fff;
  border-top: 1px solid var(--line);
}

.instructor-copy p {
  color: var(--ink);
  font-size: 1.05rem;
}

.faq-wrap {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 42px;
  align-items: start;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq details {
  padding: 18px 20px;
}

.faq summary {
  cursor: pointer;
  color: var(--ink);
  font-weight: 800;
}

.faq details p {
  margin: 12px 0 0;
}

.footer {
  padding: 34px 0 72px;
  background: #0d1726;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 18px;
}

.footer p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.9rem;
}

.floating-cta {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 18;
  display: none;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border-radius: 999px;
  background: var(--blue);
  color: #fff;
  box-shadow: 0 18px 30px rgba(36, 89, 214, 0.30);
  font-weight: 800;
  text-decoration: none;
}

@media (max-width: 920px) {
  .nav {
    display: none;
  }

  .hero {
    min-height: 88vh;
  }

  .hero-overlay {
    background:
      linear-gradient(180deg, rgba(12, 22, 36, 0.78) 0%, rgba(12, 22, 36, 0.93) 100%);
  }

  .strip-grid,
  .split,
  .offer-panel,
  .faq-wrap,
  .coverage-grid,
  .card-grid.three,
  .card-grid.two {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 58px 0;
  }

  .offer-panel {
    align-items: stretch;
  }
}

@media (max-width: 640px) {
  .site-header {
    min-height: 64px;
    padding: 12px 14px;
  }

  .brand span:last-child {
    display: none;
  }

  .hero {
    padding: 104px 0 52px;
  }

  .button {
    width: 100%;
  }

  .hero-proof span {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  .card,
  .testimonial,
  .purchase-box,
  .feature-stack article {
    padding: 20px;
  }

  .feature-stack article {
    grid-template-columns: 1fr;
  }

  .feature-stack h3,
  .feature-stack p {
    grid-column: 1;
  }

  .feature-number {
    grid-row: auto;
  }

  .footer-grid {
    display: grid;
  }

  .floating-cta {
    display: inline-flex;
    left: 18px;
  }
}