:root {
  --bg-dark: #0f172a;
  --bg-light: #f8fafc;
  --bg-hero: linear-gradient(135deg, #e0f2fe 0%, #f5f7ff 60%, #ffffff 100%);
  --text-primary: #0f172a;
  --text-muted: #475569;
  --accent: #133c7c;
  --accent-strong: #2dd4bf;
  --card: #ffffff;
  --radius: 18px;
  --shadow: 0 30px 60px rgba(15, 23, 42, 0.15);
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg-light);
  color: var(--text-primary);
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
}

img,
audio {
  max-width: 100%;
}

a {
  color: #133c7c;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.hero {
  display: grid;
  gap: 4rem;
  padding: 5rem clamp(1.5rem, 2vw, 3rem);
  background: var(--bg-hero);
  color: var(--text-primary);
}

.hero__content {
  max-width: 520px;
}

.hero__brand {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 1.8rem;
  flex-wrap: wrap;
}

.hero__logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
  text-decoration: none;
}

.hero__logo:hover {
  text-decoration: none;
}

.hero__logo img {
  height: 48px;
  width: auto;
  display: block;
}

.hero__logo-text {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #133c7c;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1.6rem;
  border-radius: 999px;
  background: rgba(209, 227, 255, 0.95);
  color: #133c7c;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.82rem;
  box-shadow: 0 6px 18px rgba(19, 60, 124, 0.18);
}

.hero h1 {
  font-size: clamp(2.4rem, 4vw, 3.3rem);
  margin: 1.2rem 0 1rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.hero p {
  color: var(--text-muted);
  margin-bottom: 1.2rem;
}

.hero__list {
  margin: 0 0 1.6rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.6rem;
}

.hero__list li {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
}

.hero__list li::before {
  content: '✔';
  color: #133c7c;
  font-weight: 700;
  margin-top: 0.1rem;
}

.waitlist-form {
  display: grid;
  gap: 1.2rem;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(148, 163, 184, 0.3);
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.08);
}

.waitlist-form input,
.waitlist-form select,
.waitlist-form textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  background: #ffffff;
  color: var(--text-primary);
  font-size: 1rem;
}

.waitlist-form input::placeholder,
.waitlist-form textarea::placeholder {
  color: #94a3b8;
}

.waitlist-form label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  display: block;
  margin-bottom: 0.2rem;
}

.waitlist-form button {
  padding: 0.9rem 1.4rem;
  border-radius: 12px;
  border: none;
  background: linear-gradient(120deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #ffffff;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.waitlist-form button:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(19, 60, 124, 0.3);
}

.form-row {
  display: grid;
  gap: 1rem;
}

.form-footnote {
  margin: 0;
  font-size: 0.8rem;
  color: #64748b;
}

.hero__preview {
  max-width: 460px;
}

.preview-card {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(148, 163, 184, 0.35);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.preview-card h2 {
  margin-top: 0;
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-primary);
}

.preview-card__mockup {
  display: grid;
  gap: 0.9rem;
}

.preview-card__subject {
  font-size: 0.9rem;
  font-weight: 600;
  color: #133c7c;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.preview-card__snippet {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.98rem;
}

.preview-card__cta {
  margin: 0;
  font-weight: 600;
  color: var(--text-primary);
}

main {
  display: grid;
  gap: 4rem;
  padding: 5rem clamp(1.5rem, 2vw, 3rem);
}

.section {
  max-width: 1120px;
  margin: 0 auto;
}

.section h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 2rem;
  text-align: center;
}

.section--light {
  color: var(--text-primary);
}

.grid {
  display: grid;
  gap: 1.8rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
  background: var(--card);
  padding: 1.8rem;
  border-radius: var(--radius);
  box-shadow: 0 15px 40px rgba(15, 23, 42, 0.08);
}

.card h3 {
  margin-top: 0;
}

.section--dark {
  background: #0f172a;
  border-radius: 32px;
  padding: 3.5rem clamp(1.5rem, 4vw, 4rem);
  color: #e2e8f0;
}

.section__content {
  max-width: 780px;
  margin: 0 auto;
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2rem;
}

.steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem;
  align-items: start;
}

.steps__number {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(56, 189, 248, 0.18);
  color: #38bdf8;
  display: grid;
  place-items: center;
  font-weight: 700;
}

.section--faq {
  color: var(--text-primary);
}

.faq {
  display: grid;
  gap: 1.4rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.footer {
  background: #0f172a;
  color: #cbd5f5;
  padding: 2rem clamp(1.5rem, 2vw, 3rem);
}

.footer__content {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

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

@media (min-width: 960px) {
  .hero {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: center;
  }

  .form-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 959px) {
  .hero {
    padding-top: 4rem;
    padding-bottom: 4rem;
  }

  .hero__preview {
    order: -1;
  }
}