/* ═══════════════════════════════════════════════════════════════
   Rustty — sitio rustty.es
   Paleta naranja sobre fondo cálido; oscuro con fondo marrón/gris
   Inspirado en la estructura de Mis Plumas
═══════════════════════════════════════════════════════════════ */

/* ── Tema claro (default) ─────────────────────────────────────── */
:root {
  --surface:          #fdfaf6;
  --surface-lowest:   #ffffff;
  --surface-high:     #f2ece3;
  --surface-highest:  #ebe3d6;
  --on-surface:       #1c1712;
  --on-surface-variant: #5a4f42;
  --primary:          #d65d1b;
  --primary-dark:     #b04a12;
  --on-primary:       #ffffff;
  --outline-variant:  rgba(214, 93, 27, 0.22);

  --font-ui:   'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* ── Tema oscuro ──────────────────────────────────────────────── */
[data-theme="dark"] {
  --surface:          #14110d;
  --surface-lowest:   #0a0806;
  --surface-high:     #221c16;
  --surface-highest:  #2a2319;
  --on-surface:       #f0e6da;
  --on-surface-variant: #b8a890;
  --primary:          #ff7a33;
  --primary-dark:     #e65d14;
  --on-primary:       #1c1712;
  --outline-variant:  rgba(255, 122, 51, 0.30);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: var(--font-ui);
}

html, body { overflow-x: hidden; }

body {
  background: var(--surface);
  color: var(--on-surface);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  line-height: 1.6;
}

/* ── Manchas decorativas de fondo ─────────────────────────────── */
.blob {
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  z-index: 0;
  opacity: 0.55;
  animation: float 12s infinite ease-in-out alternate;
  pointer-events: none;
  will-change: transform;
}
.blob-1 {
  width: 420px; height: 420px;
  background: rgba(214, 93, 27, 0.18);
  top: -120px; left: -120px;
}
.blob-2 {
  width: 520px; height: 520px;
  background: rgba(176, 74, 18, 0.10);
  bottom: -220px; right: -120px;
  animation-delay: -6s;
}
@keyframes float {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(50px, 50px) scale(1.08); }
}

/* ── Top nav ──────────────────────────────────────────────────── */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--outline-variant);
}

.nav-content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--on-surface);
  font-weight: 700;
  font-size: 18px;
}
.nav-logo-mark { font-size: 22px; }
.nav-logo-text { letter-spacing: 0.3px; }

.nav-right { display: flex; align-items: center; gap: 8px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-links a {
  color: var(--on-surface-variant);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 6px 4px;
  border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.nav-social-icons { display: inline-flex; align-items: center; gap: 8px; margin-left: 6px; }
.nav-social-icons a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  padding: 0;
  color: var(--on-surface-variant);
  border: none;
  border-radius: 50%;
  transition: color .15s, background .15s;
}
.nav-social-icons a:hover { color: var(--primary); background: var(--surface-high); }

.nav-theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  background: transparent;
  border: 1px solid var(--outline-variant);
  border-radius: 50%;
  color: var(--on-surface-variant);
  cursor: pointer;
  transition: color .15s, border-color .15s;
}
.nav-theme-toggle:hover { color: var(--primary); border-color: var(--primary); }
.nav-theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .nav-theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .nav-theme-toggle .icon-moon { display: inline; }

.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 28px; height: 24px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav-hamburger span {
  display: block;
  width: 100%; height: 2px;
  background: var(--on-surface);
  border-radius: 2px;
  transition: transform .2s;
}

/* ── Main layout ──────────────────────────────────────────────── */
main {
  position: relative;
  z-index: 1;
  flex: 1;
  width: 100%;
  padding: 2rem 1.5rem 4rem;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
}

/* ── Hero (landing) ───────────────────────────────────────────── */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 4rem 0 3rem;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.6rem;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero .slogan {
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  color: var(--on-surface-variant);
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.hero .description {
  max-width: 640px;
  font-size: 1rem;
  color: var(--on-surface-variant);
  margin-bottom: 2.5rem;
}

.hero .description strong { color: var(--on-surface); }

.buttons-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 2.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform .12s, box-shadow .12s, background .15s, color .15s;
  cursor: pointer;
}
.btn svg { width: 20px; height: 20px; }

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
  box-shadow: 0 4px 14px rgba(214, 93, 27, 0.35);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(214, 93, 27, 0.45);
}

.btn-secondary {
  background: transparent;
  color: var(--on-surface);
  border-color: var(--outline-variant);
}
.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* Mockup/screenshot principal */
.hero-screenshot {
  margin-top: 1rem;
  max-width: 100%;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  border: 1px solid var(--outline-variant);
}

/* ── Sección de características ───────────────────────────────── */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 3rem;
}

.feature-card {
  background: var(--surface-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: 12px;
  padding: 22px;
  transition: border-color .15s, transform .15s;
}
.feature-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}
.feature-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 0.5rem;
}
.feature-card p {
  font-size: 0.9rem;
  color: var(--on-surface-variant);
}

.section-title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-top: 3rem;
  margin-bottom: 1rem;
  text-align: center;
}

/* ── Página de descargas ──────────────────────────────────────── */
.platforms {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 2rem;
}

.platform-card {
  background: var(--surface-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: 14px;
  padding: 28px 24px;
}

.platform-card h3 {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.15rem;
  margin-bottom: 14px;
}

.platform-card h3 svg { width: 22px; height: 22px; color: var(--primary); }

.platform-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
}

.platform-card li a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--surface-high);
  color: var(--on-surface);
  border-radius: 8px;
  text-decoration: none;
  font-size: 13px;
  transition: background .15s;
}
.platform-card li a:hover { background: color-mix(in srgb, var(--primary) 15%, var(--surface-high)); color: var(--primary); }

.platform-card .note {
  font-size: 12px;
  color: var(--on-surface-variant);
  margin-top: 12px;
}

/* ── Docs (sidebar + contenido) ───────────────────────────────── */
.docs-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 32px;
  align-items: start;
  max-width: 1100px;
  margin: 0 auto;
}

.docs-sidebar {
  position: sticky;
  top: 84px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
  background: var(--surface-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: 12px;
  padding: 18px;
}

.docs-sidebar-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--on-surface-variant);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: default;
}
.docs-sidebar-chevron { display: none; }

#docs-menu { list-style: none; display: flex; flex-direction: column; gap: 2px; }
#docs-menu a {
  display: block;
  padding: 7px 10px;
  border-radius: 6px;
  color: var(--on-surface-variant);
  text-decoration: none;
  font-size: 14px;
  transition: background .15s, color .15s;
}
#docs-menu a:hover { background: var(--surface-high); color: var(--on-surface); }
#docs-menu a.active {
  background: color-mix(in srgb, var(--primary) 15%, transparent);
  color: var(--primary);
  font-weight: 600;
}

.docs-content {
  background: var(--surface-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: 12px;
  padding: 36px 44px;
  min-height: 60vh;
}

.docs-content h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--primary);
}
.docs-content h2 {
  font-size: 1.35rem;
  margin-top: 2rem;
  margin-bottom: 0.8rem;
  padding-bottom: 0.3rem;
  border-bottom: 1px solid var(--outline-variant);
}
.docs-content h3 {
  font-size: 1.1rem;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}
.docs-content p { margin-bottom: 1rem; color: var(--on-surface); }
.docs-content a { color: var(--primary); }
.docs-content ul, .docs-content ol { margin-left: 1.5rem; margin-bottom: 1rem; }
.docs-content li { margin-bottom: 0.3rem; }
.docs-content code {
  font-family: var(--font-mono);
  background: var(--surface-high);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}
.docs-content pre {
  background: var(--surface-high);
  padding: 16px 18px;
  border-radius: 8px;
  border: 1px solid var(--outline-variant);
  overflow-x: auto;
  margin-bottom: 1rem;
}
.docs-content pre code { background: transparent; padding: 0; }
.docs-content blockquote {
  border-left: 4px solid var(--primary);
  padding: 8px 16px;
  color: var(--on-surface-variant);
  background: var(--surface-high);
  margin-bottom: 1rem;
  border-radius: 0 6px 6px 0;
}
.docs-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1rem;
}
.docs-content th, .docs-content td {
  padding: 8px 12px;
  border: 1px solid var(--outline-variant);
  text-align: left;
}
.docs-content th { background: var(--surface-high); font-weight: 600; }
.docs-content img { max-width: 100%; border-radius: 6px; }

/* ── Footer ───────────────────────────────────────────────────── */
footer {
  position: relative;
  z-index: 1;
  padding: 32px 24px;
  border-top: 1px solid var(--outline-variant);
  text-align: center;
  color: var(--on-surface-variant);
  font-size: 13px;
}
footer p { margin-bottom: 8px; }
footer a { color: var(--on-surface-variant); text-decoration: none; }
footer a:hover { color: var(--primary); }

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 820px) {
  .docs-layout { grid-template-columns: 1fr; }
  .docs-sidebar {
    position: static;
    max-height: none;
  }
  .docs-sidebar-title {
    cursor: pointer;
  }
  .docs-sidebar-chevron { display: inline-block; transition: transform .2s; }
  .docs-sidebar.open .docs-sidebar-chevron { transform: rotate(180deg); }
  #docs-menu { display: none; }
  #docs-menu.open { display: flex; }
  .docs-content { padding: 22px 18px; }
}

@media (max-width: 720px) {
  .nav-hamburger { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    right: 12px;
    background: var(--surface-lowest);
    border: 1px solid var(--outline-variant);
    border-radius: 10px;
    padding: 14px;
    flex-direction: column;
    gap: 10px;
    min-width: 180px;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
  }
  .nav-links.open { display: flex; }
  .nav-social-icons { margin-left: 0; }
}