/* AI Medical Assistant marketing landing — educational product */

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

:root {
  --lp-bg: #070d18;
  --lp-bg-elevated: #0f172a;
  --lp-bg-card: rgba(15, 23, 42, 0.72);
  --lp-border: rgba(148, 163, 184, 0.14);
  --lp-text: #e8eef7;
  --lp-muted: #94a3b8;
  --lp-accent: #3b82f6;
  --lp-accent-hover: #2563eb;
  --lp-accent-soft: rgba(59, 130, 246, 0.14);
  --lp-cyan: #22d3ee;
  --lp-success: #22c55e;
  --lp-radius: 14px;
  --lp-max: 1140px;
}

html { scroll-behavior: smooth; }

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

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

.container {
  max-width: var(--lp-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.lp-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  background: rgba(7, 13, 24, 0.82);
  border-bottom: 1px solid var(--lp-border);
}

.lp-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4rem;
}

.lp-logo {
  display: inline-flex;
  align-items: center;
  line-height: 0;
  text-decoration: none;
}
.lp-logo .lp-brand-logo {
  display: block;
  height: 44px;
  width: auto;
  max-width: min(280px, 55vw);
  object-fit: contain;
  border-radius: 8px;
}
.lp-logo .nav-logo-dark { display: none !important; }
.lp-logo .nav-logo-light { display: block !important; }
[data-theme="dark"] .lp-logo .nav-logo-light { display: none !important; }
[data-theme="dark"] .lp-logo .nav-logo-dark { display: block !important; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .lp-logo .nav-logo-light { display: none !important; }
  :root:not([data-theme="light"]) .lp-logo .nav-logo-dark { display: block !important; }
}

.lp-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.lp-nav a {
  color: var(--lp-muted);
  font-size: 0.92rem;
  transition: color 0.15s;
}

.lp-nav a:hover { color: var(--lp-text); }

.lp-nav-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.lp-menu-btn {
  display: none;
  background: none;
  border: 1px solid var(--lp-border);
  color: var(--lp-text);
  border-radius: 8px;
  padding: 0.35rem 0.65rem;
  font-size: 1.1rem;
  cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.72rem 1.35rem;
  border-radius: 10px;
  font-weight: 650;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: background 0.15s, transform 0.15s, box-shadow 0.15s;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: linear-gradient(135deg, var(--lp-accent) 0%, var(--lp-accent-hover) 100%);
  color: #fff;
  box-shadow: 0 8px 28px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #4f8ff7 0%, var(--lp-accent) 100%);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--lp-text);
  border: 1px solid var(--lp-border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(148, 163, 184, 0.28);
}

.btn-ghost {
  background: transparent;
  color: var(--lp-muted);
  padding: 0.72rem 0.5rem;
}

.btn-ghost:hover { color: var(--lp-text); }

/* Hero */
.hero {
  position: relative;
  padding: 7.5rem 0 5rem;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 15% 20%, rgba(37, 99, 235, 0.28), transparent 55%),
    radial-gradient(ellipse 50% 40% at 85% 5%, rgba(34, 211, 238, 0.12), transparent 50%),
    linear-gradient(165deg, #070d18 0%, #0f1a2e 55%, #0a1220 100%);
  z-index: -1;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3rem;
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  border: 1px solid rgba(96, 165, 250, 0.35);
  background: var(--lp-accent-soft);
  color: #93c5fd;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lp-success);
  box-shadow: 0 0 8px rgba(34, 197, 94, 0.7);
}

.hero h1 {
  font-size: clamp(2.35rem, 5.2vw, 3.75rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.08;
  margin-bottom: 1.1rem;
}

.hero h1 span {
  background: linear-gradient(135deg, #60a5fa 0%, #22d3ee 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-lead {
  color: var(--lp-muted);
  font-size: 1.12rem;
  max-width: 34rem;
  margin-bottom: 1.85rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  color: var(--lp-muted);
  font-size: 0.88rem;
}

.hero-trust span {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.hero-trust strong { color: #cbd5e1; font-weight: 600; }

.hero-visual {
  position: relative;
}

.hero-panel {
  background: var(--lp-bg-card);
  border: 1px solid var(--lp-border);
  border-radius: 20px;
  padding: 1.75rem;
  backdrop-filter: blur(8px);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.45);
}

.hero-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--lp-border);
}

.hero-panel-title {
  font-weight: 700;
  font-size: 0.95rem;
}

.hero-panel-status {
  font-size: 0.75rem;
  color: var(--lp-success);
  background: rgba(34, 197, 94, 0.12);
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.metric-card {
  background: rgba(7, 13, 24, 0.65);
  border: 1px solid var(--lp-border);
  border-radius: 12px;
  padding: 1rem;
}

.metric-value {
  display: block;
  font-size: 1.65rem;
  font-weight: 800;
  color: #60a5fa;
  line-height: 1.1;
}

.metric-label {
  display: block;
  font-size: 0.78rem;
  color: var(--lp-muted);
  margin-top: 0.25rem;
}

.hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1.15rem;
}

.chip {
  font-size: 0.75rem;
  color: var(--lp-muted);
  background: rgba(7, 13, 24, 0.8);
  border: 1px solid var(--lp-border);
  border-radius: 999px;
  padding: 0.25rem 0.65rem;
}

/* Sections */
.section {
  padding: 5rem 0;
}

.section-alt { background: #0a101c; }

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3rem;
}

.section-head h2 {
  font-size: clamp(1.75rem, 3vw, 2.35rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
}

.section-head p {
  color: var(--lp-muted);
  font-size: 1.05rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.15rem;
}

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

.feature-card:hover {
  border-color: rgba(96, 165, 250, 0.35);
  transform: translateY(-2px);
}

.feature-icon {
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--lp-accent-soft);
  color: #93c5fd;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 0.85rem;
}

.feature-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.45rem;
}

.feature-card p {
  color: var(--lp-muted);
  font-size: 0.9rem;
}

/* Security */
.security-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

.security-list {
  list-style: none;
  display: grid;
  gap: 0.85rem;
}

.security-list li {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  color: var(--lp-muted);
  font-size: 0.95rem;
}

.security-list li::before {
  content: "✓";
  flex-shrink: 0;
  width: 1.35rem;
  height: 1.35rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(34, 197, 94, 0.15);
  color: var(--lp-success);
  font-size: 0.75rem;
  font-weight: 700;
}

.security-panel {
  background: linear-gradient(145deg, rgba(15, 23, 42, 0.9), rgba(7, 13, 24, 0.95));
  border: 1px solid var(--lp-border);
  border-radius: 18px;
  padding: 2rem;
}

.security-panel h3 {
  font-size: 1.15rem;
  margin-bottom: 1rem;
}

.compliance-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.compliance-tag {
  font-size: 0.78rem;
  padding: 0.35rem 0.7rem;
  border-radius: 8px;
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(96, 165, 250, 0.25);
  color: #bfdbfe;
}

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.15rem;
}

.pricing-card {
  background: var(--lp-bg-card);
  border: 1px solid var(--lp-border);
  border-radius: var(--lp-radius);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
}

.pricing-card.featured {
  border-color: rgba(96, 165, 250, 0.45);
  box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.15), 0 16px 48px rgba(37, 99, 235, 0.18);
}

.pricing-tier {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #93c5fd;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.pricing-card h3 {
  font-size: 1.35rem;
  margin-bottom: 0.35rem;
}

.pricing-desc {
  color: var(--lp-muted);
  font-size: 0.88rem;
  margin-bottom: 1.25rem;
  flex: 1;
}

.pricing-features {
  list-style: none;
  margin-bottom: 1.5rem;
}

.pricing-features li {
  color: var(--lp-muted);
  font-size: 0.88rem;
  padding: 0.35rem 0;
  padding-left: 1.25rem;
  position: relative;
}

.pricing-features li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--lp-accent);
}

/* Stack */
.stack-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.65rem;
}

.stack-pill {
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--lp-border);
  color: #cbd5e1;
  font-size: 0.85rem;
  font-weight: 500;
}

/* CTA band */
.cta-band {
  padding: 4.5rem 0;
  text-align: center;
  background:
    radial-gradient(ellipse 60% 80% at 50% 100%, rgba(37, 99, 235, 0.2), transparent 60%),
    linear-gradient(180deg, #0a101c 0%, #070d18 100%);
}

.cta-band h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  margin-bottom: 0.65rem;
}

.cta-band p {
  color: var(--lp-muted);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

/* Footer */
.lp-footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--lp-border);
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1.25rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.footer-links a {
  color: var(--lp-muted);
  font-size: 0.88rem;
}

.footer-links a:hover { color: var(--lp-text); }

.footer-copy {
  color: #64748b;
  font-size: 0.85rem;
}

.footer-copy a { color: #94a3b8; }
.footer-copy a:hover { color: #e2e8f0; }

/* Mobile */
@media (max-width: 900px) {
  .hero-grid,
  .features-grid,
  .security-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .hero { padding-top: 6.5rem; }

  .lp-nav { display: none; }
  .lp-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 4rem;
    left: 0;
    right: 0;
    background: rgba(7, 13, 24, 0.98);
    border-bottom: 1px solid var(--lp-border);
    padding: 1rem 1.5rem 1.25rem;
    gap: 0.85rem;
  }

  .lp-menu-btn { display: block; }

  .lp-nav-actions .btn-ghost { display: none; }
}

@media (max-width: 520px) {
  .hero-metrics { grid-template-columns: 1fr; }
  .hero-cta .btn { width: 100%; }
}