/* BoomaNotes Landing Pages — Minimal CSS, mobile-first */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-muted: #666666;
  --color-border: #e5e5e5;
  --color-primary: #1a1a1a;
  --color-primary-text: #ffffff;
  --color-surface: #f9f9f9;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --max-width: 680px;
  --radius: 8px;
}

body {
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 16px;
}

/* Hero */
.hero {
  text-align: center;
  padding: 40px 0 32px;
}

.hero h1 {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.25;
  margin: 16px 0 8px;
}

.subtitle {
  color: var(--color-muted);
  font-size: 1rem;
  margin-bottom: 24px;
}

.logo-link { text-decoration: none; }
.logo { display: inline-block; width: auto; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: opacity 0.15s;
}
.btn:hover { opacity: 0.85; }

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

.link-secondary {
  display: block;
  margin-top: 12px;
  color: var(--color-muted);
  font-size: 0.875rem;
  text-decoration: underline;
}

/* Preview */
.preview {
  padding: 32px 0;
}

.preview h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 16px;
  text-align: center;
}

.preview-grid {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  padding-bottom: 8px;
}

.preview-grid img {
  max-width: 280px;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}

.preview-grid img:hover {
  transform: scale(1.03);
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

@media (min-width: 520px) {
  .preview-grid img {
    max-width: 300px;
  }
}

/* Lightbox */
.lightbox-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(0,0,0,0.8);
  align-items: center;
  justify-content: center;
  padding: 16px;
  cursor: pointer;
}

.lightbox-overlay.active {
  display: flex;
}

.lightbox-overlay img {
  max-width: 95vw;
  max-height: 95vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius);
}

.lightbox-close {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 101;
  background: rgba(255,255,255,0.9);
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #1a1a1a;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

/* Benefits */
.benefits {
  padding: 24px 0;
}

.benefits ul {
  list-style: none;
  display: grid;
  gap: 12px;
}

.benefits li {
  padding: 12px 16px;
  background: var(--color-surface);
  border-radius: var(--radius);
  font-size: 0.95rem;
}

/* Email Capture */
.capture {
  padding: 40px 0;
  text-align: center;
}

.capture h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.capture-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 380px;
  margin: 0 auto;
}

.capture-form input[type="text"],
.capture-form input[type="email"] {
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: var(--font);
  width: 100%;
}

.capture-form input:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: -1px;
}

.consent-text {
  font-size: 0.75rem;
  color: var(--color-muted);
  margin-top: 4px;
}

.consent-text a { color: var(--color-muted); }

.soft-gate {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-top: 12px;
}

.soft-gate a { color: var(--color-muted); }

.form-success {
  padding: 16px;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: var(--radius);
  max-width: 380px;
  margin: 0 auto;
}

.form-error {
  padding: 16px;
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: var(--radius);
  max-width: 380px;
  margin: 0 auto;
}

/* Related Topics */
.related {
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
}

.related h2 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.related-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.related-links a {
  padding: 8px 16px;
  background: var(--color-surface);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--color-text);
  font-size: 0.9rem;
  border: 1px solid var(--color-border);
}

.related-links a:hover {
  border-color: var(--color-primary);
}

/* Topic Index Grid */
.topic-grid {
  display: grid;
  gap: 16px;
  padding: 24px 0;
}

@media (min-width: 520px) {
  .topic-grid { grid-template-columns: repeat(2, 1fr); }
}

.topic-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  color: var(--color-text);
  transition: border-color 0.15s;
}

.topic-card:hover { border-color: var(--color-primary); }

.topic-card img {
  width: 100%;
  height: 140px;
  object-fit: cover;
}

.topic-card-body {
  padding: 12px 16px;
}

.topic-card-body h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.topic-card-body p {
  font-size: 0.85rem;
  color: var(--color-muted);
}

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

.footer .logo { height: 60px; }

.tagline {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin: 8px 0 12px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  font-size: 0.8rem;
}

.footer-links a {
  color: var(--color-muted);
  text-decoration: none;
}

.footer-links a:hover { text-decoration: underline; }