:root {
  --teal: #0d9488;
  --teal-dark: #0f766e;
  --ink: #111827;
  --muted: #4b5563;
  --bg: #ffffff;
  --tint: #f0fdfa;
  --border: #e5e7eb;
  --radius: 1rem;
  --max: 70rem;
}

@font-face {
  font-family: 'Ravi';
  src: url('/landing-assets/Ravi-VF.ttf') format('truetype');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family:
    'Ravi',
    ui-sans-serif,
    system-ui,
    -apple-system,
    'Segoe UI',
    Roboto,
    Arial,
    'Noto Sans',
    sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
}
a { color: var(--teal-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { width: min(100% - 2rem, var(--max)); margin-inline: auto; }
.muted { color: var(--muted); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 3.75rem;
}
.logo { font-weight: 700; font-size: 1.25rem; color: var(--ink); }
.nav { display: flex; gap: .75rem; align-items: center; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .15rem;
  border: 0;
  border-radius: .75rem;
  background: var(--teal);
  color: #fff;
  padding: .65rem 1.1rem;
  font: inherit;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--teal-dark); text-decoration: none; }
.btn-sm { padding: .4rem .8rem; font-size: .9rem; }
.btn-lg { padding: .9rem 1.4rem; }
.btn-lg strong { font-size: 1.15rem; }
.btn-lg span { font-size: .8rem; opacity: .85; font-weight: 400; }
.btn-ghost {
  background: transparent;
  color: var(--teal-dark);
  border: 1px solid var(--border);
}

.hero {
  background: linear-gradient(135deg, #f0fdfa, #fff);
  padding: 2rem 0 3rem;
}
.hero-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}
@media (min-width: 768px) {
  .hero { min-height: calc(100vh - 3.75rem); padding: 3rem 0; }
  .hero-grid { grid-template-columns: 1fr 1fr; }
}
.hero-media {
  aspect-ratio: 3/2;
  border-radius: var(--radius);
  background: linear-gradient(135deg, #99f6e4, #5eead4);
}
.hero-copy h1 { font-size: clamp(1.6rem, 3vw, 2.4rem); line-height: 1.35; margin: 0 0 1rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.5rem; }

.section { padding: 3rem 0; }
.section.tint { background: var(--tint); }
.section h2 { font-size: 1.6rem; margin: 0 0 1rem; }
.card-list, .feature-grid {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
  display: grid;
  gap: 1rem;
}
@media (min-width: 768px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
}
.card-list li, .feature-grid li {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  background: #fff;
}
.lede { white-space: pre-line; color: var(--muted); }

.video-placeholder {
  aspect-ratio: 16/9;
  border-radius: var(--radius);
  background: #e2e8f0;
  display: grid;
  place-items: center;
  color: var(--muted);
}

.cta {
  background: var(--teal);
  color: #fff;
  padding: 2.5rem 0;
}
.cta-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
}
.cta .btn { background: #fff; color: var(--teal-dark); }

details {
  border: 1px solid var(--border);
  border-radius: .75rem;
  padding: .85rem 1rem;
  margin-bottom: .65rem;
  background: #fff;
}
summary { cursor: pointer; font-weight: 600; }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0 1.5rem;
  background: #fafafa;
}
.footer-grid {
  display: grid;
  gap: 1.5rem;
}
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: repeat(3, 1fr); }
}
.footer-grid a { display: block; margin: .25rem 0; }
.copyright { text-align: center; color: var(--muted); font-size: .9rem; }

.modal[hidden] { display: none; }
.modal { position: fixed; inset: 0; z-index: 50; }
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.5);
}
.modal-panel {
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: min(100%, 28rem);
  background: #fff;
  border-radius: 1.25rem 1.25rem 0 0;
  padding: 1.5rem;
  max-height: 90vh;
  overflow: auto;
}
@media (min-width: 768px) {
  .modal-panel {
    top: 50%;
    bottom: auto;
    transform: translate(-50%, -50%);
    border-radius: 1rem;
  }
}
.modal-close {
  position: absolute;
  top: .75rem;
  left: .75rem;
  border: 0;
  background: transparent;
  font-size: 1.5rem;
  cursor: pointer;
}
#demo-form label {
  display: block;
  margin-bottom: .85rem;
  font-size: .9rem;
}
#demo-form input,
#demo-form textarea {
  display: block;
  width: 100%;
  margin-top: .35rem;
  padding: .6rem .75rem;
  border: 1px solid var(--border);
  border-radius: .5rem;
  font: inherit;
}
#demo-form input:focus,
#demo-form textarea:focus {
  outline: 2px solid #5eead4;
  border-color: var(--teal);
}
.hp {
  position: absolute !important;
  left: -9999px !important;
  opacity: 0 !important;
  height: 0 !important;
  width: 0 !important;
}
.form-actions { display: flex; gap: .5rem; margin-top: 1rem; }
.form-actions .btn { flex: 1; }
.form-status { margin: .5rem 0 0; font-size: .9rem; }
.form-status.ok { color: var(--teal-dark); }
.form-status.err { color: #b91c1c; }

.blog-list { list-style: none; padding: 0; }
.blog-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: .85rem 0;
  border-bottom: 1px solid var(--border);
}
.article { padding: 2rem 0 3rem; }