/* Align landing — charcoal + teal, modern sans (always light) */
:root {
  color-scheme: light;
  --charcoal: #1e293b;
  --charcoal-light: #334155;
  --teal: #0d9488;
  --teal-light: #14b8a6;
  --teal-muted: #0f766e;
  --bg: #f8fafc;
  --white: #ffffff;
  --border: #e2e8f0;
}

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

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--charcoal);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-link {
  display: block;
}

.logo {
  height: 32px;
  width: auto;
  display: block;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav a {
  color: var(--charcoal-light);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9375rem;
}

.nav a:hover {
  color: var(--teal-muted);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.625rem 1.25rem;
  font-weight: 700;
  font-size: 0.875rem;
  text-decoration: none;
  border-radius: 0.75rem;
  transition: transform 0.15s, box-shadow 0.15s;
  font-family: inherit;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(13, 148, 136, 0.25);
}

.btn-primary {
  background: var(--teal);
  color: var(--white);
  border: none;
}

.btn-primary:hover {
  background: var(--teal-muted);
}

.btn-secondary {
  background: var(--white);
  color: var(--teal-muted);
  border: 2px solid var(--teal);
}

.btn-secondary:hover {
  background: rgba(13, 148, 136, 0.06);
}

.btn-lg {
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
}

/* Hero */
.hero {
  padding: 4rem 0 5rem;
  text-align: center;
}

.hero-inner {
  max-width: 640px;
  margin: 0 auto;
}

.hero-logo {
  width: 180px;
  height: auto;
  margin-bottom: 2rem;
}

.hero-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--charcoal);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--charcoal-light);
  margin-bottom: 2rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

/* Features */
.features {
  padding: 4rem 0;
  background: var(--white);
  border-top: 1px solid var(--border);
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 1.875rem);
  font-weight: 700;
  color: var(--charcoal);
  text-align: center;
  margin-bottom: 0.5rem;
}

.section-subtitle {
  text-align: center;
  color: var(--charcoal-light);
  max-width: 520px;
  margin: 0 auto 2.5rem;
  font-size: 1rem;
}

.feature-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  padding: 1.5rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  border-color: var(--teal-light);
  box-shadow: 0 4px 20px rgba(13, 148, 136, 0.08);
}

.feature-icon {
  font-size: 1.75rem;
  display: block;
  margin-bottom: 0.75rem;
}

.feature-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--charcoal);
  margin-bottom: 0.5rem;
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--charcoal-light);
}

/* CTA section */
.cta-section {
  padding: 4rem 0;
  text-align: center;
}

.cta-section .btn {
  margin-top: 0.5rem;
}

/* Footer */
.footer {
  background: var(--charcoal);
  color: var(--white);
  padding: 2.5rem 0;
  text-align: center;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.footer-logo {
  opacity: 0.9;
  height: 24px;
  width: auto;
}

.footer-tagline {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--teal-light);
}

.footer-copy {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.6);
}