:root {
  --ink: #101820;
  --paper: #f7f8f6;
  --muted: #62707a;
  --line: #dbe1df;
  --panel: #ffffff;
  --teal: #0f7d7e;
  --teal-dark: #07585c;
  --amber: #d9872a;
  --steel: #25333d;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

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

.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 64px);
  color: #fff;
  background: linear-gradient(180deg, rgba(16, 24, 32, 0.9), rgba(16, 24, 32, 0.28));
}

.brand {
  display: inline-flex;
  align-items: center;
  width: min(300px, 48vw);
  min-width: 188px;
}

.brand img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 58px;
  object-fit: contain;
  padding: 6px 10px;
  background: rgba(255, 255, 255, 0.9);
}

.nav-links {
  display: flex;
  gap: 28px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.95rem;
  font-weight: 600;
}

.header-action {
  border: 1px solid rgba(255, 255, 255, 0.42);
  padding: 11px 16px;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.12);
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: #fff;
  padding: 122px clamp(20px, 6vw, 76px) 72px;
}

.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(7, 13, 19, 0.92) 0%, rgba(7, 13, 19, 0.72) 42%, rgba(7, 13, 19, 0.18) 100%),
    linear-gradient(180deg, rgba(7, 13, 19, 0.2), rgba(7, 13, 19, 0.82));
}

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

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--amber);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

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

h1 {
  max-width: 720px;
  margin-bottom: 24px;
  font-size: clamp(2.7rem, 7vw, 6.6rem);
  line-height: 0.96;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 630px;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1.05rem, 2vw, 1.32rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button,
.contact-form button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border: 0;
  padding: 0 20px;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.button.primary,
.contact-form button {
  color: #fff;
  background: var(--teal);
}

.button.primary:hover,
.contact-form button:hover {
  background: var(--teal-dark);
}

.button.secondary {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.42);
  background: rgba(255, 255, 255, 0.11);
}

.proof-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 46px;
}

.proof-strip span {
  border: 1px solid rgba(255, 255, 255, 0.26);
  padding: 8px 12px;
  color: rgba(255, 255, 255, 0.82);
  background: rgba(255, 255, 255, 0.08);
  font-size: 0.88rem;
  font-weight: 700;
}

.section {
  padding: 84px clamp(20px, 6vw, 76px);
}

.intro,
.ai-section,
.approach,
.case-study,
.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 1fr);
  gap: clamp(36px, 8vw, 96px);
  align-items: start;
}

.section h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1.04;
  letter-spacing: 0;
}

.section p {
  color: var(--muted);
  font-size: 1.04rem;
}

.service-band {
  background: var(--ink);
  color: #fff;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  align-items: end;
  margin-bottom: 34px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.service-card {
  min-height: 284px;
  padding: 28px;
  background: var(--steel);
}

.service-card h3 {
  margin: 46px 0 12px;
  font-size: 1.22rem;
}

.service-card p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.97rem;
}

.icon {
  color: var(--amber);
  font-weight: 800;
}

.steps {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.step {
  display: grid;
  gap: 8px;
  padding: 24px;
  background: var(--panel);
}

.step strong {
  color: var(--teal-dark);
  font-size: 1.08rem;
}

.step span {
  color: var(--muted);
}

.case-study {
  background: #f8faf8;
}

.case-study-copy p {
  max-width: 720px;
}

.case-panel {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.case-stat,
.case-list {
  background: #fff;
  padding: 26px;
}

.case-stat {
  display: grid;
  gap: 6px;
}

.case-stat strong {
  color: var(--teal-dark);
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1;
}

.case-stat span {
  color: var(--muted);
  font-weight: 800;
}

.case-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.case-list span {
  border-left: 3px solid var(--amber);
  padding-left: 12px;
  color: var(--steel);
  font-weight: 700;
}

.ai-section {
  background: #ffffff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.contact-section {
  background: #e8ece9;
}

.contact-details {
  display: grid;
  gap: 10px;
  margin-top: 28px;
  color: var(--teal-dark);
  font-weight: 800;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 28px;
  background: #fff;
  border: 1px solid var(--line);
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: var(--steel);
  font-size: 0.92rem;
  font-weight: 800;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid #cfd8d6;
  padding: 13px 14px;
  color: var(--ink);
  font: inherit;
  background: #fbfcfb;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 3px solid rgba(15, 125, 126, 0.18);
  border-color: var(--teal);
}

.form-note {
  margin: -4px 0 0;
  font-size: 0.87rem;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 24px clamp(20px, 6vw, 76px);
  color: #d7dedb;
  background: var(--ink);
  font-size: 0.92rem;
}

@media (max-width: 920px) {
  .site-header {
    position: absolute;
    flex-wrap: wrap;
  }

  .nav-links {
    order: 3;
    width: 100%;
    gap: 18px;
  }

  .header-action {
    display: none;
  }

  .hero {
    min-height: 760px;
    padding-top: 150px;
  }

  .intro,
  .ai-section,
  .approach,
  .case-study,
  .contact-section,
  .section-heading {
    display: grid;
    grid-template-columns: 1fr;
  }

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

@media (max-width: 620px) {
  .brand {
    width: min(238px, 66vw);
    min-width: 172px;
  }

  .nav-links {
    justify-content: space-between;
    font-size: 0.88rem;
  }

  .hero {
    min-height: 720px;
  }

  .hero-actions,
  .hero-actions .button {
    width: 100%;
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    min-height: 220px;
  }

  .contact-form {
    padding: 20px;
  }

  .case-list {
    grid-template-columns: 1fr;
  }

  .site-footer {
    display: grid;
  }
}