:root {
  --ink: #17212b;
  --muted: #5d6875;
  --paper: #fbfaf7;
  --panel: #ffffff;
  --line: rgba(23, 33, 43, 0.12);
  --teal: #0f766e;
  --teal-dark: #0a4f4a;
  --coral: #d85c4a;
  --gold: #d9a441;
  --sky: #e7f2f4;
  --shadow: 0 24px 70px rgba(16, 33, 46, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Assistant", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 18px;
  line-height: 1.65;
}

body::selection {
  background: rgba(216, 92, 74, 0.24);
}

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

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

.site-header {
  position: fixed;
  z-index: 50;
  inset: 0 0 auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 4vw, 64px);
  color: #fff;
  transition: background 180ms ease, color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(251, 250, 247, 0.94);
  color: var(--ink);
  box-shadow: 0 10px 40px rgba(23, 33, 43, 0.08);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: max-content;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 50%;
  background: var(--coral);
  color: #fff;
  font-size: 22px;
  font-weight: 800;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(14px, 2vw, 28px);
  font-size: 16px;
  font-weight: 700;
}

.main-nav a {
  opacity: 0.9;
}

.main-nav a:hover {
  opacity: 1;
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 800;
  line-height: 1.2;
  transition: transform 170ms ease, box-shadow 170ms ease, background 170ms ease;
}

.header-cta {
  background: #fff;
  color: var(--teal-dark);
}

.site-header.is-scrolled .header-cta {
  background: var(--teal);
  color: #fff;
}

.button:hover,
.header-cta:hover {
  transform: translateY(-2px);
}

.button.primary {
  background: var(--coral);
  color: #fff;
  box-shadow: 0 12px 34px rgba(216, 92, 74, 0.28);
}

.button.secondary {
  border: 1px solid currentColor;
  color: inherit;
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: end;
  overflow: hidden;
  color: #fff;
  padding: 132px clamp(22px, 7vw, 110px) 92px;
}

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

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

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(7, 30, 39, 0.28), rgba(7, 30, 39, 0.76) 58%, rgba(7, 30, 39, 0.9)),
    linear-gradient(0deg, rgba(7, 30, 39, 0.5), transparent 44%);
}

.hero-content {
  position: relative;
  max-width: 760px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--coral);
  font-size: 16px;
  font-weight: 800;
}

.hero .eyebrow {
  color: #f7cfa5;
}

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

h1 {
  margin-bottom: 24px;
  font-size: clamp(52px, 8vw, 104px);
  line-height: 0.95;
  letter-spacing: 0;
  max-width: 900px;
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(34px, 4vw, 58px);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 24px;
  line-height: 1.18;
}

.hero-subtitle {
  max-width: 720px;
  margin-bottom: 32px;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(22px, 2.4vw, 31px);
  line-height: 1.35;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

section:not(.hero) {
  padding: clamp(70px, 9vw, 124px) clamp(22px, 6vw, 96px);
}

.intro-band {
  background: var(--teal-dark);
  color: #fff;
}

.intro-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: 1240px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.18);
}

.intro-grid article {
  min-height: 300px;
  padding: clamp(26px, 4vw, 46px);
  background: var(--teal-dark);
}

.intro-grid span,
.steps span {
  color: var(--gold);
  font-size: 42px;
  font-weight: 800;
  line-height: 1;
}

.intro-grid p,
.feature-card p,
.steps p,
.section-copy p,
.contact-card p {
  color: var(--muted);
}

.intro-grid p {
  color: rgba(255, 255, 255, 0.78);
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
  gap: clamp(36px, 6vw, 78px);
  align-items: center;
  max-width: 1340px;
  margin: 0 auto;
}

.section-copy p {
  max-width: 760px;
}

.method-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.method-list span {
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--teal-dark);
  font-weight: 800;
}

.image-panel,
.image-strip {
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.image-panel img {
  aspect-ratio: 4 / 5;
  height: 100%;
  object-fit: cover;
}

.approach {
  background: var(--sky);
}

.section-heading {
  max-width: 850px;
  margin: 0 auto 44px;
  text-align: center;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  max-width: 1240px;
  margin: 0 auto;
}

.feature-card {
  min-height: 270px;
  padding: 30px;
  border: 1px solid rgba(15, 118, 110, 0.13);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 16px 44px rgba(16, 33, 46, 0.08);
}

.feature-card.wide {
  grid-column: span 2;
}

.check {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  margin-bottom: 20px;
  border-radius: 50%;
  background: rgba(15, 118, 110, 0.1);
  color: var(--teal);
  font-size: 25px;
  font-weight: 800;
}

.audience {
  display: grid;
  grid-template-columns: minmax(300px, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(34px, 6vw, 82px);
  align-items: center;
  max-width: 1320px;
  margin: 0 auto;
}

.image-strip img {
  aspect-ratio: 4 / 3;
  height: 100%;
  object-fit: cover;
}

.clean-list {
  display: grid;
  gap: 14px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.clean-list li {
  position: relative;
  padding: 18px 52px 18px 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  font-weight: 700;
}

.clean-list li::before {
  content: "✓";
  position: absolute;
  right: 20px;
  top: 18px;
  color: var(--teal);
  font-weight: 800;
}

.process {
  background: #fff;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  max-width: 1240px;
  margin: 0 auto;
  background: var(--line);
  border: 1px solid var(--line);
}

.steps article {
  min-height: 280px;
  padding: 32px;
  background: #fff;
}

.results {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(30px, 5vw, 74px);
  align-items: start;
  background: var(--teal-dark);
  color: #fff;
}

.results .eyebrow {
  color: #f7cfa5;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.results-grid div {
  min-height: 150px;
  display: flex;
  align-items: end;
  padding: 24px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.92);
  font-size: 24px;
  font-weight: 800;
  line-height: 1.2;
}

.contact {
  background:
    linear-gradient(90deg, rgba(251, 250, 247, 0.95), rgba(251, 250, 247, 0.72)),
    url("./assets/letters.png") center / cover;
}

.contact-card {
  max-width: 820px;
  padding: clamp(34px, 5vw, 58px);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow);
}

.contact-card h2 {
  color: var(--teal-dark);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 26px clamp(22px, 6vw, 96px);
  background: var(--ink);
  color: rgba(255, 255, 255, 0.78);
  font-weight: 700;
}

.section-reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 560ms ease, transform 560ms ease;
}

.section-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .site-header {
    position: absolute;
    align-items: flex-start;
  }

  .main-nav,
  .header-cta {
    display: none;
  }

  .hero {
    min-height: 88vh;
    padding-top: 110px;
  }

  .intro-grid,
  .split-section,
  .audience,
  .steps,
  .results {
    grid-template-columns: 1fr;
  }

  .cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .feature-card.wide {
    grid-column: span 2;
  }

  .image-panel img {
    aspect-ratio: 16 / 10;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 17px;
  }

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

  .hero {
    min-height: 84vh;
    padding: 96px 20px 58px;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(7, 30, 39, 0.2), rgba(7, 30, 39, 0.78) 45%, rgba(7, 30, 39, 0.93)),
      linear-gradient(0deg, rgba(7, 30, 39, 0.58), transparent 50%);
  }

  h1 {
    font-size: clamp(42px, 15vw, 64px);
  }

  h2 {
    font-size: clamp(30px, 10vw, 42px);
  }

  .hero-subtitle {
    font-size: 21px;
  }

  section:not(.hero) {
    padding: 62px 20px;
  }

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

  .feature-card.wide {
    grid-column: auto;
  }

  .feature-card,
  .steps article,
  .intro-grid article {
    min-height: auto;
  }

  .button {
    width: 100%;
  }

  .contact-card {
    padding: 30px 22px;
  }

  .site-footer {
    display: grid;
  }
}