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

:root {
  --text-primary: #111;
  --text-secondary: #555;
  --text-muted: #777;
  --border: #e0e0e0;
  --bg-light: #f9f9f9;
  --accent: #1B2D5B;
  --accent-hover: #152347;
  --white: #fff;
  --max-width: 1080px;
}

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

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

/* ── Layout ── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Nav ── */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  text-align: center;
}

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

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

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--text-primary);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 14px;
}

/* ── Hero ── */
.hero {
  padding: 80px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}

.hero h1 {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.5px;
  max-width: 680px;
  margin: 0 auto 20px;
}

.hero p {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Section ── */
.section {
  padding: 72px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-alt {
  background: var(--bg-light);
}

.section-alt .section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.3px;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 48px;
}

.section-subtitle.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-title.center {
  text-align: center;
}

/* ── Steps ── */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.step {
  text-align: center;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--white);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}

.step h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.step p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── Cards ── */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 28px 24px;
  background: var(--white);
}

.card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
}

.card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── Check List ── */
.check-list {
  list-style: none;
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.check-list li {
  font-size: 16px;
  color: var(--text-primary);
  padding-left: 28px;
  position: relative;
  line-height: 1.5;
}

.check-list li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  font-weight: 700;
  color: var(--text-primary);
}

/* ── FAQ ── */
.faq-list {
  margin-top: 40px;
  max-width: 680px;
}

.faq-list.center {
  margin-left: auto;
  margin-right: auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 24px 0;
}

.faq-item:first-child {
  border-top: 1px solid var(--border);
}

.faq-question {
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.faq-question::after {
  content: "+";
  font-size: 20px;
  font-weight: 400;
  color: var(--text-muted);
  flex-shrink: 0;
}

.faq-item.open .faq-question::after {
  content: "\2212";
}

.faq-answer {
  display: none;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  padding-top: 14px;
}

.faq-item.open .faq-answer {
  display: block;
}

/* ── Waitlist Form ── */
.waitlist {
  padding: 72px 24px;
  background: #1B2D5B;
  text-align: center;
}

.waitlist > * {
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
}

.waitlist h2 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.3px;
  margin-bottom: 12px;
  color: var(--white);
}

.waitlist > p {
  font-size: 16px;
  color: var(--white);
  max-width: 520px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.waitlist-form {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  max-width: 520px;
  margin: 0 auto;
}

.waitlist-form input {
  flex: 1;
  min-width: 180px;
  padding: 12px 16px;
  font-size: 15px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}

.waitlist-form input:focus {
  border-color: var(--text-primary);
}

.waitlist-form select {
  flex: 1;
  min-width: 180px;
  padding: 12px 16px;
  font-size: 15px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: inherit;
  outline: none;
  background: var(--white);
  color: var(--text-primary);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23555' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
  cursor: pointer;
  transition: border-color 0.2s;
}

.waitlist-form select:focus {
  border-color: var(--text-primary);
}

.waitlist-form .btn {
  flex-shrink: 0;
}

.form-message {
  margin-top: 16px;
  font-size: 15px;
  min-height: 24px;
}

.form-success {
  color: #1a7a3a;
}

.form-error {
  color: #c0392b;
}

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}

.footer-areas {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.footer-copy {
  font-size: 13px;
  color: var(--text-muted);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .hero {
    padding: 56px 24px;
  }

  .hero h1 {
    font-size: 30px;
  }

  .hero p {
    font-size: 16px;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 56px 24px;
  }

  .waitlist {
    padding: 56px 24px;
  }

  .waitlist-form {
    flex-direction: column;
  }

  .waitlist-form input,
  .waitlist-form select {
    min-width: 100%;
  }

  .waitlist-form .btn {
    width: 100%;
  }

  .section-title {
    font-size: 24px;
  }

  .waitlist h2 {
    font-size: 24px;
  }
}