/**
 * Nav + Footer unificados (mismo estilo que index — Grunge White).
 * Usado por index.html y por páginas que cargan partials (ej. projects.html).
 */

/* Variables necesarias para nav/footer (tema claro) */
:root {
  --primary-bg: #f8f6f1;
  --secondary-bg: #f0ece3;
  --ink: #141210;
  --ink-2: #3a3530;
  --ink-3: #7a736a;
  --ink-4: #b5ada3;
  --border: rgba(20, 18, 16, 0.1);
  --border-strong: rgba(20, 18, 16, 0.2);
}

/* ─── NAV ─── */
.nav-container {
  position: fixed;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  width: auto;
  max-width: 90vw;
  pointer-events: none;
}

.nav-content {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 20px;
  background: rgba(248, 246, 241, 0.85);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(20, 18, 16, 0.12);
  box-shadow: 0 2px 0 rgba(255, 255, 255, 0.8) inset, 0 4px 20px rgba(20, 18, 16, 0.08), 0 1px 3px rgba(20, 18, 16, 0.1);
  border-radius: 14px;
  padding: 8px 14px;
  position: relative;
  width: fit-content;
}

.nav-content::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.5), transparent);
  pointer-events: none;
}

.logo {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 17px;
  color: var(--ink);
  letter-spacing: 1px;
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.logo:hover {
  opacity: 0.85;
}

.nav-links {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 4px;
  background: rgba(20, 18, 16, 0.04);
  border-radius: 10px;
}

.nav-links li {
  position: relative;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Syne Mono', monospace;
  font-size: 11px;
  font-weight: 400;
  color: var(--ink-3);
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: 8px;
  padding: 8px 14px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.nav-links a:hover {
  color: var(--ink);
  background: rgba(20, 18, 16, 0.07);
}

.nav-links a.active {
  background: var(--ink);
  color: var(--primary-bg);
  border-radius: 8px;
}

.nav-controls {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ─── Selector de idioma personalizado (estilo grunge) ─── */
.lang-selector {
  position: relative;
}

.lang-selector-trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 14px;
  background: rgba(20, 18, 16, 0.05);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--ink-3);
  font-family: 'Syne Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
  -webkit-tap-highlight-color: transparent;
}

.lang-selector-trigger:hover {
  background: rgba(20, 18, 16, 0.09);
  border-color: var(--border-strong);
  color: var(--ink);
}

.lang-selector-trigger .lang-selector-chevron {
  font-size: 9px;
  opacity: 0.7;
  transition: transform 0.2s ease;
}

.lang-selector.is-open .lang-selector-trigger .lang-selector-chevron {
  transform: rotate(180deg);
}

.lang-selector-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 140px;
  padding: 6px;
  background: var(--primary-bg, #f8f6f1);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  box-shadow: 4px 4px 0 var(--ink-2, #3a3530);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  z-index: 100;
  pointer-events: none;
}

.lang-selector.is-open .lang-selector-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.lang-selector-option {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 10px 12px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--ink-2);
  font-family: 'Syne Mono', monospace;
  font-size: 12px;
  text-align: left;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  -webkit-tap-highlight-color: transparent;
}

.lang-selector-option:hover {
  background: rgba(20, 18, 16, 0.06);
  color: var(--ink);
}

.lang-selector-option.is-selected {
  background: rgba(20, 18, 16, 0.08);
  color: var(--ink);
  font-weight: 600;
}

/* Fallback para páginas que aún usen el control-btn con select nativo */
.control-btn {
  position: relative;
  background: rgba(20, 18, 16, 0.05);
  border: 1px solid var(--border);
  color: var(--ink-3);
  font-family: 'Syne Mono', monospace;
  font-size: 11px;
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
}

.control-btn select {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  min-height: 44px;
  margin: 0;
  padding: 0;
  background: transparent;
  border: none;
  color: inherit;
  font: inherit;
  cursor: pointer;
  outline: none;
  opacity: 0.0001;
  z-index: 1;
}

/* Scroll shadow (opcional) */
.nav-container.scrolled::after {
  opacity: 1;
}

.nav-container::after {
  content: '';
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 20px;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.08), transparent);
  border-radius: 50%;
  filter: blur(8px);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

/* ─── FOOTER ─── */
.footer {
  background: var(--ink);
  border-top: none;
  padding: 32px 5%;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-text {
  color: rgba(248, 246, 241, 0.4);
  font-family: 'Syne Mono', monospace;
  font-size: 11px;
  letter-spacing: 1px;
}

.footer-social {
  display: flex;
  gap: 20px;
}

.footer-social a {
  color: rgba(248, 246, 241, 0.4);
  font-size: 16px;
  transition: color 0.2s ease;
}

.footer-social a:hover {
  color: var(--primary-bg);
}

@media (max-width: 768px) {
  .nav-content {
    gap: 12px;
    padding: 6px 10px;
  }
  .nav-links a span {
    display: none;
  }
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}