:root {
  color-scheme: light;
  --bg: #f2f3f5;
  --surface: #ffffff;
  --primary: #1f2933;
  --primary-dark: #0b0f14;
  --accent: #d97706;
  --text: #141b23;
  --muted: #5b6773;
  --border: rgba(15, 23, 42, 0.12);
  --shadow: 0 24px 60px rgba(15, 23, 42, 0.12);
}

body[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b0f14;
  --surface: #111821;
  --primary: #f8fafc;
  --primary-dark: #e2e8f0;
  --accent: #f59e0b;
  --text: #f8fafc;
  --muted: #a0aec0;
  --border: rgba(148, 163, 184, 0.2);
  --shadow: 0 28px 70px rgba(0, 0, 0, 0.5);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Inter", system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

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

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.site-header {
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 6vw;
  gap: 1rem;
}

.brand {
  font-weight: 700;
  font-size: 1.1rem;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.theme-toggle {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
}

.theme-toggle:hover {
  box-shadow: 0 8px 18px rgba(18, 41, 33, 0.15);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
}

.nav-toggle__bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  margin: 5px 0;
}

main {
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
  padding: 5rem 6vw 2rem;
  align-items: center;
}

.hero__content h1 {
  font-size: clamp(2.3rem, 4vw, 3.5rem);
  margin-bottom: 1rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.lead {
  font-size: 1.05rem;
  color: var(--muted);
  margin-bottom: 1.5rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
}

.hero__stats strong {
  display: block;
  font-size: 1.4rem;
}

.hero__stats span {
  color: var(--muted);
  font-size: 0.9rem;
}

.hero__card {
  background: linear-gradient(140deg, var(--surface), rgba(17, 24, 39, 0.02));
  padding: 2rem;
  border-radius: 22px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.hero__card ul {
  list-style: none;
  margin-top: 1rem;
  display: grid;
  gap: 0.75rem;
}

.hero__card li {
  padding-left: 1.5rem;
  position: relative;
  color: var(--muted);
}

.hero__card li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary);
}

.section {
  padding: 0 6vw 4rem;
}

.section__header {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

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

.section--alt {
  background: linear-gradient(120deg, rgba(217, 119, 6, 0.08), rgba(15, 23, 42, 0.04));
  padding-top: 4rem;
}

.section--accent {
  background: linear-gradient(140deg, var(--primary-dark), #1f2933);
  color: #ffffff;
  padding-top: 4rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.grid--two {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card,
.callout {
  background: var(--surface);
  padding: 1.5rem;
  border-radius: 18px;
  border: 1px solid var(--border);
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.12);
}

.callout {
  border-left: 4px solid var(--accent);
  background: linear-gradient(135deg, var(--surface), rgba(245, 158, 11, 0.08));
}

.section--accent .card,
.section--accent .callout {
  color: var(--text);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
}

.metrics h3 {
  font-size: 1.6rem;
  color: var(--primary-dark);
}

.section--accent .metrics h3 {
  color: #ffffff;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), #111827);
  color: #ffffff;
  font-weight: 600;
  border: none;
  cursor: pointer;
  letter-spacing: 0.01em;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(18, 41, 33, 0.2);
}

.button--outline {
  background: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
}

.button--ghost {
  background: transparent;
  border: 1px solid rgba(15, 23, 42, 0.2);
  color: var(--primary);
}

.contact {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.contact__form {
  background: #ffffff;
  color: var(--text);
  padding: 2rem;
  border-radius: 20px;
  display: grid;
  gap: 1rem;
  box-shadow: var(--shadow);
}

.contact__form label {
  display: grid;
  gap: 0.35rem;
  font-weight: 500;
}

.contact__form input,
.contact__form textarea {
  padding: 0.7rem 0.9rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  font-family: inherit;
}

.form-note {
  font-size: 0.85rem;
  color: var(--muted);
}

.section--accent .form-note {
  color: #eaf5ef;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem 6vw 3rem;
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.footer-links {
  display: flex;
  gap: 1rem;
  color: var(--muted);
}

@media (max-width: 900px) {
  .nav {
    flex-wrap: wrap;
  }

  .nav-toggle {
    display: block;
  }

  .nav-menu {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem 0 0;
  }

  .nav-menu.is-open {
    display: flex;
  }
}

@media (max-width: 600px) {
  .hero {
    padding-top: 3.5rem;
  }

  .button {
    width: 100%;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}