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

/* === Catppuccin Latte Palette === */
:root {
  --base: #eff1f5;
  --mantle: #e6e9ef;
  --crust: #dce0e8;
  --surface0: #ccd0da;
  --surface1: #bcc0cc;
  --text: #4c4f69;
  --subtext1: #5c5f77;
  --subtext0: #6c6f85;
  --blue: #1e66f5;
  --green: #40a02b;
  --red: #d20f39;
}

/* === Typography === */
body {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--base);
  -webkit-font-smoothing: antialiased;
}

.font-mono {
  font-family: 'JetBrains Mono', monospace;
}

/* === Layout === */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* === Buttons === */
.btn-primary {
  display: inline-block;
  background: var(--blue);
  color: var(--base);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  font-size: 14px;
  padding: 10px 28px;
  border: none;
  border-radius: 2px;
  text-decoration: none;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: opacity 0.15s;
}

.btn-primary:hover {
  opacity: 0.9;
}

/* === Screenshot images === */
.screenshot {
  border: 1px solid var(--surface1);
  border-radius: 0;
}

/* === Nav === */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--mantle);
  border-bottom: 1px solid var(--surface0);
  padding: 12px 0;
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  color: var(--blue);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: none;
}

.nav .btn-primary {
  font-size: 12px;
  padding: 7px 18px;
}

/* === Hero === */
.hero {
  text-align: center;
  padding: 80px 0 60px;
}

.hero h1 {
  font-size: 44px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}

.hero-sub {
  font-size: 17px;
  color: var(--subtext0);
  max-width: 520px;
  margin: 0 auto 28px;
  line-height: 1.6;
}

.hero-screenshot {
  margin-top: 48px;
}

/* === Feature Sections === */
.feature {
  padding: 80px 0;
  border-top: 1px solid var(--surface0);
}

.feature-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.feature-inner.reverse .feature-image {
  order: -1;
}

.step-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.feature h2 {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 12px;
}

.feature p {
  font-size: 15px;
  color: var(--subtext0);
  line-height: 1.7;
}

/* === Mobile Strip === */
.mobile-strip {
  background: var(--mantle);
  border-top: 1px solid var(--surface0);
  border-bottom: 1px solid var(--surface0);
  padding: 48px 0;
  text-align: center;
}

.mobile-strip-label {
  font-size: 13px;
  color: var(--subtext0);
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}

.mobile-frames {
  display: flex;
  justify-content: center;
  gap: 24px;
}

.mobile-frame {
  width: 180px;
}

.mobile-frame img {
  border: 1px solid var(--surface1);
}

/* === Final CTA === */
.final-cta {
  text-align: center;
  padding: 80px 0;
  border-top: 1px solid var(--surface0);
}

.final-cta h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 24px;
}

.final-cta .beta-note {
  font-size: 13px;
  color: var(--subtext0);
  margin-top: 16px;
}

.final-cta .btn-primary {
  font-size: 16px;
  padding: 14px 36px;
}

/* === Footer === */
.footer {
  border-top: 1px solid var(--surface0);
  padding: 24px 0;
  text-align: center;
  font-size: 12px;
  color: var(--subtext0);
}

/* === Modal === */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(76, 79, 105, 0.4);
  z-index: 200;
  justify-content: center;
  align-items: center;
}

.modal-overlay.open {
  display: flex;
}

.modal {
  background: var(--base);
  border: 1px solid var(--surface0);
  width: 420px;
  max-width: 90vw;
  padding: 32px;
}

.modal-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}

.modal-sub {
  font-size: 13px;
  color: var(--subtext0);
  margin-bottom: 24px;
}

.modal-field {
  margin-bottom: 16px;
}

.modal-field label {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 600;
  color: var(--subtext1);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

.modal-field input {
  width: 100%;
  padding: 10px 12px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  color: var(--text);
  background: var(--mantle);
  border: 1px solid var(--surface0);
  border-radius: 2px;
  outline: none;
  transition: border-color 0.15s;
}

.modal-field input:focus {
  border-color: var(--blue);
}

.modal-actions {
  display: flex;
  gap: 8px;
  margin-top: 24px;
}

.modal-actions .btn-primary {
  flex: 1;
  text-align: center;
}

.btn-secondary {
  display: inline-block;
  background: none;
  color: var(--subtext0);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  font-size: 14px;
  padding: 10px 28px;
  border: 1px solid var(--surface0);
  border-radius: 2px;
  cursor: pointer;
  transition: border-color 0.15s;
}

.btn-secondary:hover {
  border-color: var(--subtext1);
}

.modal-success {
  display: none;
  text-align: center;
  padding: 16px 0;
}

.modal-success .checkmark {
  font-size: 32px;
  color: var(--green);
  margin-bottom: 8px;
}

.modal-success p {
  font-size: 14px;
  color: var(--subtext0);
}

.modal-error {
  display: none;
  font-size: 12px;
  color: var(--red);
  margin-top: 8px;
}

/* === Responsive: stack at narrow viewports === */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 30px;
  }

  .hero-sub {
    font-size: 15px;
  }

  .feature-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .feature-inner.reverse .feature-image {
    order: 0;
  }

  .mobile-frames {
    gap: 12px;
  }

  .mobile-frame {
    width: 140px;
  }

  .final-cta h2 {
    font-size: 26px;
  }
}