/* =============================================================================
   DBV Typst Editor — Estilos de la página de presentación (GitHub Pages)
   Copyright (c) 2026 David Bueno Vallejo · MIT License
   Portado de dbv-md-reader/docs/styles.css — misma paleta que el tema oscuro
   de la propia app (tokens.css), para que la landing y la aplicación se
   sientan de la misma familia visual.
   ============================================================================= */

:root {
  --bg-primary:    #0d1117;
  --bg-secondary:  #161b22;
  --bg-tertiary:   #21262d;
  --text-primary:  #e6edf3;
  --text-secondary:#8b949e;
  --text-muted:    #6e7681;
  --accent:        #58a6ff;
  --accent-hover:  #79c0ff;
  --border:        #30363d;
  --shadow:        rgba(0, 0, 0, 0.45);
  --radius: 12px;
  --max-width: 1120px;
  /* Paleta del "papel" del mockup de vista previa — deliberadamente cálida,
     distinta del resto de la interfaz (que es oscura): representa el PDF
     compuesto, no la interfaz de la app. */
  --paper-bg: #f4f1ea;
  --paper-line: #cfc9ba;
  --paper-text: #2a2620;
}

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

html { scroll-behavior: smooth; }

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

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
code {
  font-family: 'JetBrains Mono', 'Fira Code', ui-monospace, monospace;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 0.9em;
}
kbd {
  font-family: inherit;
  font-size: 0.8em;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 5px;
  padding: 1px 7px;
}

section > *, .nav-inner, .footer-inner { max-width: var(--max-width); margin-inline: auto; }

/* ─── Botones ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background-color: var(--accent); color: #05131f; }
.btn-primary:hover { background-color: var(--accent-hover); }
.btn-ghost { background-color: transparent; color: var(--text-primary); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-lg { padding: 14px 26px; font-size: 16px; border-radius: 10px; }
.btn-nav { display: none; }

/* ─── Nav ─────────────────────────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(13, 17, 23, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
}
.nav-brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 16px; }
.nav-logo { font-size: 20px; }
.nav-links { display: flex; align-items: center; gap: 28px; font-size: 14px; color: var(--text-secondary); }
.nav-links a:hover { color: var(--text-primary); }
.nav-github { display: flex; align-items: center; gap: 6px; }
.nav-lang { border: 1px solid var(--border); border-radius: 999px; padding: 4px 12px; font-weight: 600; }
.nav-lang:hover { border-color: var(--text-secondary); }

/* ─── Hero ────────────────────────────────────────────────────────────────── */
.hero {
  max-width: var(--max-width);
  margin-inline: auto;
  padding: 72px 24px 40px;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  align-items: center;
}
.hero-eyebrow {
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.hero h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.15;
  font-weight: 800;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
}
.hero-sub { color: var(--text-secondary); font-size: 17px; margin-bottom: 28px; max-width: 46ch; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 16px; align-items: center; }
.hero-note { color: var(--text-muted); font-size: 13px; }

.hero-shot { position: relative; }
.window-frame {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 60px var(--shadow);
}
.window-titlebar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 14px;
  background-color: var(--bg-tertiary);
  border-bottom: 1px solid var(--border);
}
.dot { width: 11px; height: 11px; border-radius: 50%; }
.dot-r { background-color: #ff5f57; }
.dot-y { background-color: #febc2e; }
.dot-g { background-color: #28c840; }
.window-title { margin-left: 8px; font-size: 12px; color: var(--text-muted); }

.hero-screenshot {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 1906 / 1073;
  object-fit: cover;
}

/* ─── Showcase / Galería de capturas reales ────────────────────────────────── */
.showcase {
  padding: 60px 24px 80px;
  background-color: var(--bg-primary);
}
.showcase-inner {
  max-width: var(--max-width);
  margin-inline: auto;
  text-align: center;
}
.showcase h2 {
  font-size: 1.9rem;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 36px;
  text-align: left;
}
.showcase-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
}
.showcase-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 16px 36px var(--shadow);
}
.showcase-card img, .hero-screenshot {
  cursor: zoom-in;
}
.showcase-card img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 1906 / 1073;
  object-fit: cover;
  border-bottom: 1px solid var(--border);
  transition: transform 0.25s ease;
}
.showcase-card:hover img {
  transform: scale(1.02);
}
.showcase-body {
  padding: 18px 20px;
}
.showcase-body h3 {
  font-size: 15px;
  margin-bottom: 6px;
  color: var(--text-primary);
}
.showcase-body p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

/* ─── Lightbox / Zoom modal ───────────────────────────────────────────────── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(5, 10, 18, 0.92);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 1;
  transition: opacity 0.2s ease;
}
.lightbox.hidden {
  display: none;
  opacity: 0;
  pointer-events: none;
}
.lightbox-container {
  position: relative;
  max-width: 95vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.lightbox-img {
  max-width: 100%;
  max-height: 82vh;
  border-radius: 8px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.8);
  border: 1px solid var(--border);
  object-fit: contain;
}
.lightbox-caption {
  color: var(--text-primary);
  font-size: 14px;
  margin-top: 14px;
  text-align: center;
  max-width: 78ch;
  line-height: 1.5;
  background: rgba(13, 17, 23, 0.85);
  padding: 8px 18px;
  border-radius: 20px;
  border: 1px solid var(--border);
}
.lightbox-close {
  position: absolute;
  top: -18px;
  right: -18px;
  background: #1f242c;
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  font-size: 24px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s ease, background 0.15s ease;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.5);
}
.lightbox-close:hover {
  background: #ff5f57;
  transform: scale(1.1);
  color: #fff;
}

/* ─── Stats ───────────────────────────────────────────────────────────────── */
.stats { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background-color: var(--bg-secondary); }
.stats-inner {
  padding: 32px 24px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  text-align: center;
}
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat-num { font-size: 1.6rem; font-weight: 800; color: var(--accent); }
.stat-label { font-size: 13px; color: var(--text-secondary); }

/* ─── Por qué ─────────────────────────────────────────────────────────────── */
.why { padding: 72px 24px; text-align: center; }
.why-inner { max-width: 760px; }
.why h2 { font-size: 1.8rem; margin-bottom: 18px; letter-spacing: -0.01em; }
.why p { color: var(--text-secondary); font-size: 16px; }
.why strong { color: var(--text-primary); }
.why p + p { margin-top: 16px; }

/* ─── Features ────────────────────────────────────────────────────────────── */
.features { padding: 24px 24px 80px; }
.features h2, .templates h2, .steps h2, .cta h2 {
  text-align: center;
  font-size: 1.9rem;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.feature-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.feature-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.feature-icon { font-size: 26px; margin-bottom: 12px; }
.feature-card h3 { font-size: 15px; margin-bottom: 6px; }
.feature-card p { font-size: 13.5px; color: var(--text-secondary); }

/* ─── Plantillas ──────────────────────────────────────────────────────────── */
.templates { padding: 48px 24px 80px; background-color: var(--bg-secondary); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.templates-inner { text-align: center; }
.section-sub { color: var(--text-secondary); margin-top: 0; margin-bottom: 32px; font-size: 15px; }
.template-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; max-width: var(--max-width); margin-inline: auto; }
.template-chip {
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: left;
  font-size: 13.5px;
}
.template-chip strong { display: block; font-size: 14px; margin-bottom: 4px; }
.template-chip span { color: var(--text-muted); }
.template-chip--universe {
  border-color: var(--accent);
  background: linear-gradient(135deg, rgba(88, 166, 255, 0.09), var(--bg-primary));
}
.template-chip--universe strong { color: var(--accent); }

/* ─── Steps ───────────────────────────────────────────────────────────────── */
.steps { padding: 80px 24px; }
.step-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.step { text-align: center; padding: 0 12px; }
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: 50%;
  background-color: var(--accent);
  color: #05131f;
  font-weight: 800;
  margin-bottom: 16px;
}
.step h3 { font-size: 16px; margin-bottom: 8px; }
.step p { color: var(--text-secondary); font-size: 14px; }

/* ─── CTA final ───────────────────────────────────────────────────────────── */
.cta { padding: 80px 24px; text-align: center; background: linear-gradient(180deg, var(--bg-secondary), var(--bg-primary)); border-top: 1px solid var(--border); }
.cta p { color: var(--text-secondary); margin-bottom: 28px; }
.cta .hero-ctas { justify-content: center; }

/* ─── Footer ──────────────────────────────────────────────────────────────── */
.footer { border-top: 1px solid var(--border); padding: 48px 24px 24px; }
.footer-inner { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.footer-brand { font-weight: 700; }
.footer-brand p { font-weight: 400; color: var(--text-muted); font-size: 13px; margin-top: 8px; max-width: 32ch; }
.footer-links { display: flex; gap: 56px; }
.footer-col h4 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); margin-bottom: 12px; }
.footer-col a { display: block; color: var(--text-secondary); font-size: 14px; margin-bottom: 8px; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { max-width: var(--max-width); margin: 32px auto 0; padding-top: 20px; border-top: 1px solid var(--border); color: var(--text-muted); font-size: 13px; }

/* ─── Legal (privacidad/privacy) ──────────────────────────────────────────── */
.legal {
  max-width: 720px;
  margin: 0 auto;
  padding: 64px 24px 96px;
  color: var(--text-primary);
}
.legal h1 { font-size: 32px; margin-bottom: 4px; }
.legal .legal-updated { color: var(--text-muted); font-size: 14px; margin-bottom: 40px; }
.legal h2 { font-size: 20px; margin: 40px 0 12px; color: var(--accent); }
.legal p, .legal li { color: var(--text-secondary); font-size: 15px; }
.legal ul { padding-left: 20px; margin: 8px 0; }
.legal li { margin-bottom: 6px; }
.legal-summary {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 24px;
  margin: 24px 0 8px;
}
.legal-summary p { color: var(--text-primary); margin: 0; }

/* ─── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .showcase-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-inner { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 40px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .template-grid { grid-template-columns: repeat(2, 1fr); }
  .showcase-grid { grid-template-columns: 1fr; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .step-grid { grid-template-columns: 1fr; gap: 32px; }
  .nav-links { display: none; }
  .btn-nav { display: inline-flex; }
  .lightbox-close { top: 12px; right: 16px; width: 36px; height: 36px; }
}
@media (max-width: 520px) {
  .feature-grid { grid-template-columns: 1fr; }
  .template-grid { grid-template-columns: 1fr; }
  .stats-inner { grid-template-columns: 1fr; }
  .hero-ctas, .cta .hero-ctas { flex-direction: column; align-items: stretch; }
  .footer-inner { flex-direction: column; }
}