:root {
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --indigo-600: #4f46e5;
  --slate-50: #f8fafc;
  --slate-200: #e2e8f0;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-700: #334155;
  --slate-900: #0f172a;
  --white: #fff;
  --amber-50: #fffbeb;
  --amber-200: #fde68a;
  --amber-700: #b45309;
  --indigo-50: #eef2ff;
  --indigo-700: #4338ca;
  --emerald-50: #ecfdf5;
  --emerald-700: #047857;
  --gray-300: #d1d5db;
  --red-400: #f87171;
  --font: "DM Sans", system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--slate-50);
  color: var(--slate-900);
  line-height: 1.5;
}

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

img {
  max-width: 100%;
}

.container {
  width: min(72rem, 100% - 3rem);
  margin-inline: auto;
}

/* Nav */
#nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  transition: box-shadow 0.25s ease;
}

#nav.nav--scrolled {
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.08);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1.5rem;
  max-width: 80rem;
  margin: 0 auto;
}

.logo {
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--blue-600);
}

.logo span {
  color: #000;
}

.nav-actions {
  display: none;
  align-items: center;
  gap: 0.75rem;
}

.nav-actions [data-auth-logged-out],
.nav-actions [data-auth-logged-in] {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-actions [hidden],
[data-auth-logged-out][hidden],
[data-auth-logged-in][hidden] {
  display: none !important;
}

@media (min-width: 768px) {
  .nav-actions {
    display: flex;
  }

  .menu-toggle {
    display: none !important;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  border-radius: 0.75rem;
  padding: 0.65rem 1.35rem;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--blue-600);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--blue-700);
}

.btn-ghost {
  background: transparent;
  color: var(--slate-700);
  border: 1px solid var(--slate-200);
}

.btn-gradient {
  background: linear-gradient(135deg, var(--indigo-600), var(--blue-600));
  color: var(--white);
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
  font-weight: 700;
}

.btn-white {
  background: var(--white);
  color: var(--blue-700);
  font-weight: 700;
}

.menu-toggle {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: #000;
}

/* Mobile menu */
#mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--white);
  z-index: 60;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}

#mobile-menu.is-open {
  transform: translateX(0);
}

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.mobile-menu-actions {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Hero */
.hero {
  text-align: center;
  padding: 7rem 1.5rem 5rem;
  max-width: 56rem;
  margin: 0 auto;
}

.eyebrow {
  color: var(--blue-600);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.75rem;
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin: 0 0 1.5rem;
}

.hero h1 .grad {
  background: linear-gradient(135deg, var(--indigo-600), var(--blue-600));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.divider {
  width: 4rem;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--indigo-600), var(--blue-600));
  margin: 0 auto 1.5rem;
}

.hero-lead {
  color: var(--slate-500);
  font-size: 1.05rem;
  max-width: 36rem;
  margin: 0 auto 2rem;
}

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

.trust-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  margin-top: 3.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--slate-500);
}

.dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--blue-600);
  display: inline-block;
  margin-right: 0.5rem;
}

/* Sections */
.section {
  padding: 0 1.5rem 6rem;
}

.section-head {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-head h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: 72rem;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .feature-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .feature-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.feature-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: 1rem;
  padding: 2rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.08);
}

.feature-icon {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.35rem;
  margin-bottom: 1.25rem;
}

.feature-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
}

.feature-card p {
  color: var(--slate-500);
  font-size: 0.9rem;
  margin: 0;
}

.g-indigo {
  background: linear-gradient(135deg, #6366f1, #4338ca);
}
.g-blue {
  background: linear-gradient(135deg, #3b82f6, #1d4ed8);
}
.g-violet {
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}
.g-sky {
  background: linear-gradient(135deg, #0ea5e9, #2563eb);
}
.g-purple {
  background: linear-gradient(135deg, #9333ea, #3730a3);
}
.g-cyan {
  background: linear-gradient(135deg, #06b6d4, #0369a1);
}
.g-emerald {
  background: linear-gradient(135deg, #10b981, #047857);
}
.g-amber {
  background: linear-gradient(135deg, #f59e0b, #d97706);
}
.g-rose {
  background: linear-gradient(135deg, #f43f5e, #e11d48);
}

/* Blue band */
.band {
  background: linear-gradient(135deg, #4338ca, #3b82f6);
  color: var(--white);
  padding: 5rem 1.5rem;
}

.band-inner {
  max-width: 72rem;
  margin: 0 auto;
  display: grid;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .band-inner {
    grid-template-columns: 1fr 1fr;
  }
}

.band h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  margin: 0 0 1.25rem;
}

.band p {
  color: #dbeafe;
  max-width: 28rem;
  margin: 0 0 1.75rem;
}

.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.stat {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 1rem;
  padding: 1.25rem;
  backdrop-filter: blur(4px);
}

.stat strong {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 0.25rem;
}

.stat span {
  font-size: 0.875rem;
  color: #dbeafe;
}

/* Platforms */
.platform-grid {
  display: grid;
  gap: 2rem;
  max-width: 72rem;
  margin: 0 auto;
}

@media (min-width: 1024px) {
  .platform-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.platform-card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: 1.5rem;
  padding: 2.5rem;
}

.pill {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  margin-bottom: 1.25rem;
}

.pill-indigo {
  background: var(--indigo-50);
  color: var(--indigo-700);
}

.pill-emerald {
  background: var(--emerald-50);
  color: var(--emerald-700);
}

.platform-card h3 {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0 0 0.75rem;
}

.platform-card > p {
  color: var(--slate-500);
  margin: 0 0 1.5rem;
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.checklist li {
  display: flex;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--slate-700);
}

.checklist li::before {
  content: "✓";
  color: var(--blue-600);
  font-weight: 700;
  flex-shrink: 0;
}

/* Audience */
.audience {
  max-width: 72rem;
  margin: 0 auto;
  background: var(--slate-900);
  color: var(--white);
  border-radius: 1.5rem;
  padding: 2.5rem;
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 768px) {
  .audience {
    padding: 3.5rem;
  }
}

@media (min-width: 1024px) {
  .audience {
    grid-template-columns: 1fr 1fr;
  }
}

.audience h2 {
  font-size: clamp(1.5rem, 3vw, 1.875rem);
  font-weight: 800;
  margin: 0 0 1rem;
}

.audience p {
  color: var(--slate-400);
  max-width: 28rem;
  margin: 0;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.tag {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #e2e8f0;
}

/* Final CTA */
.final-cta {
  text-align: center;
  max-width: 40rem;
  margin: 0 auto;
  padding: 0 1.5rem 6rem;
}

.final-cta h2 {
  font-size: 1.875rem;
  font-weight: 800;
  margin: 0 0 1rem;
}

.final-cta p {
  color: var(--slate-500);
  margin: 0 0 2rem;
}

/* Footer */
footer {
  background: var(--gray-300);
  padding: 3rem 1.5rem;
}

.footer-grid {
  max-width: 80rem;
  margin: 0 auto;
  display: grid;
  gap: 2.5rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

footer h4 {
  color: var(--red-400);
  text-transform: uppercase;
  font-size: 0.875rem;
  font-weight: 600;
  margin: 0 0 1rem;
}

footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.875rem;
}

footer p {
  font-size: 0.875rem;
  margin: 0 0 0.5rem;
}