/* ============================================================
   styles.css — Estilos principales Glasscor-Pádel
   Paleta corporativa azul marino / vidrio
   ============================================================ */

/* ── Variables CSS ──────────────────────────────────────────── */
:root {
  --color-primary:      #003a70;
  --color-secondary:    #0077cc;
  --color-accent:       #00b4d8;
  --color-dark:         #0a0f1e;
  --color-light:        #f0f7ff;
  --color-white:        #ffffff;
  --color-text:         #1a2340;
  --color-text-light:   #5a6580;
  --color-success:      #00c897;
  --color-warning:      #f5a623;
  --color-border:       #d0dce8;
  --color-overlay:      rgba(10, 15, 30, 0.72);
  --color-card-bg:      #ffffff;

  --font-heading:  'Montserrat', system-ui, sans-serif;
  --font-body:     'Inter', system-ui, sans-serif;

  --shadow-sm:   0 2px 8px rgba(0,58,112,0.08);
  --shadow-md:   0 4px 20px rgba(0,58,112,0.14);
  --shadow-lg:   0 8px 40px rgba(0,58,112,0.20);
  --shadow-xl:   0 16px 60px rgba(0,58,112,0.28);

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  32px;

  --transition-fast:   150ms ease;
  --transition-base:   300ms ease;
  --transition-slow:   500ms ease;

  --header-h:   72px;
  --container:  1240px;
  --gap:        clamp(1rem, 2.5vw, 2rem);
}

/* ── Base ───────────────────────────────────────────────────── */
body {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  background: var(--color-white);
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2.5rem);
}

/* ── Tipografía ─────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  font-weight: 700;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
h4 { font-size: clamp(1rem, 2vw, 1.25rem); }

p { color: var(--color-text-light); line-height: 1.7; }

.lead {
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  color: var(--color-text);
  font-weight: 400;
  line-height: 1.75;
}

.text-center { text-align: center; }
.text-accent  { color: var(--color-accent); }
.text-white   { color: var(--color-white); }
.text-primary { color: var(--color-primary); }

/* ── Secciones ──────────────────────────────────────────────── */
section {
  padding-block: clamp(3rem, 7vw, 6rem);
}

.section-title {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.section-subtitle {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--color-text-light);
  max-width: 640px;
  margin-inline: auto;
  line-height: 1.7;
}

.section-header {
  text-align: center;
  margin-bottom: clamp(2rem, 5vw, 4rem);
}

.section-header .section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-secondary));
  border-radius: 2px;
  margin: 0.75rem auto 0;
}

.section-light { background: var(--color-light); }
.section-dark  {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-dark) 100%);
  color: var(--color-white);
}
.section-dark .section-title,
.section-dark h2,
.section-dark h3 { color: var(--color-white); }
.section-dark p   { color: rgba(255,255,255,0.80); }

/* ── Botones ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.8rem 2rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  white-space: nowrap;
  cursor: pointer;
  border: 2px solid transparent;
  letter-spacing: 0.02em;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(0,119,204,0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,119,204,0.45);
}
.btn-primary:active { transform: translateY(0); }

.btn-accent {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-secondary) 100%);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(0,180,216,0.35);
}
.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,180,216,0.45);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.6);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--color-white);
}

.btn-outline-dark {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline-dark:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-lg {
  font-size: 1.1rem;
  padding: 1rem 2.5rem;
}

.btn-sm {
  font-size: 0.85rem;
  padding: 0.55rem 1.25rem;
}

/* ── Header ─────────────────────────────────────────────────── */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: all var(--transition-base);
  /* Fondo semitransparente siempre → hamburger visible en cualquier fondo */
  background: rgba(0, 15, 40, 0.30);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

#site-header.scrolled {
  background: var(--color-primary);
  box-shadow: var(--shadow-lg);
}

#site-header.scrolled .nav-link {
  color: rgba(255,255,255,0.85);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

/* Logo */
.site-logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  text-decoration: none;
}
.logo-main {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.55rem;
  color: var(--color-white);
  letter-spacing: 0.04em;
}
.logo-sub {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.72rem;
  color: var(--color-accent);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

/* Navegación principal */
.main-nav { display: flex; align-items: center; gap: 0.25rem; }

.nav-item { position: relative; }

.nav-link {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.9);
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-accent);
  background: rgba(255,255,255,0.08);
}

/* Dropdown */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 200px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  padding: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-base);
  z-index: 100;
}

.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown a {
  display: block;
  padding: 0.55rem 0.9rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  font-weight: 500;
}

.nav-dropdown a:hover {
  background: var(--color-light);
  color: var(--color-primary);
  padding-left: 1.2rem;
}

/* Flecha dropdown */
.nav-link .arrow {
  width: 10px;
  height: 10px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform var(--transition-fast);
  display: inline-block;
}

.nav-item:hover .nav-link .arrow {
  transform: rotate(-135deg) translateY(-2px);
}

/* Botón contacto en header */
.header-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Hamburguesa */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  cursor: pointer;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition-base);
  transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ── Hero ────────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--color-dark);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../assets/img/2020/11/mt-sample-background.bk.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transform: scale(1.05);
  transition: transform 8s ease;
}

.hero:hover .hero-bg { transform: scale(1.0); }

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(0, 15, 40, 0.82) 0%,
    rgba(0, 58, 112, 0.65) 50%,
    rgba(0, 180, 216, 0.25) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding-inline: 1rem;
  max-width: 900px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0,180,216,0.2);
  border: 1px solid rgba(0,180,216,0.4);
  color: var(--color-accent);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.4rem 1rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  color: var(--color-white);
  line-height: 1.1;
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 20px rgba(0,0,0,0.4);
}

.hero-title span { color: var(--color-accent); }

.hero-subtitle {
  font-size: clamp(1.05rem, 2.5vw, 1.3rem);
  color: rgba(255,255,255,0.85);
  max-width: 640px;
  margin: 0 auto 2.5rem;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255,255,255,0.6);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--font-heading);
  animation: bounce 2s ease infinite;
  z-index: 2;
}

.hero-scroll::after {
  content: '';
  display: block;
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ── Badges destacados ──────────────────────────────────────── */
.badges-strip {
  background: var(--color-primary);
  padding: 1.8rem 0;
}

.badges-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.badge-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.5rem;
  padding: 1rem;
  border-right: 1px solid rgba(255,255,255,0.1);
}

.badge-item:last-child { border-right: none; }

.badge-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,180,216,0.15);
  border-radius: 50%;
  margin-bottom: 0.25rem;
}

.badge-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-accent);
  fill: none;
}

.badge-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-white);
}

.badge-desc {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.4;
}

/* ── Tarjetas de productos ──────────────────────────────────── */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.product-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-accent);
}

.product-card-img {
  position: relative;
  overflow: hidden;
  height: 220px;
}

.product-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.product-card:hover .product-card-img img {
  transform: scale(1.07);
}

.product-card-tag {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
  color: white;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
}

.product-card-body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.6rem;
}

.product-card-text {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 1.25rem;
}

.product-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--color-secondary);
  transition: gap var(--transition-fast);
}

.product-card-link:hover { gap: 0.7rem; color: var(--color-primary); }

.product-card-link::after {
  content: '→';
}

/* ── Sección sobre nosotros ─────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.about-img-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.about-img-wrapper img {
  width: 100%;
  height: 460px;
  object-fit: cover;
}

.about-img-badge {
  position: absolute;
  bottom: 1.5rem;
  right: 1.5rem;
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  text-align: center;
  box-shadow: var(--shadow-md);
}

.about-img-badge strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}

.about-img-badge span {
  font-size: 0.78rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--font-heading);
}

.about-content { display: flex; flex-direction: column; gap: 1.25rem; }

.about-tag {
  display: inline-block;
  background: var(--color-light);
  color: var(--color-secondary);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.35rem 0.9rem;
  border-radius: 100px;
  border: 1px solid rgba(0,119,204,0.2);
  width: fit-content;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--color-text);
}

.feature-check {
  width: 22px;
  height: 22px;
  min-width: 22px;
  background: linear-gradient(135deg, var(--color-success), var(--color-accent));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
}

.feature-check::after {
  content: '✓';
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
}

/* ── Tarjetas de servicios ──────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-secondary), var(--color-accent));
  transform: scaleX(0);
  transition: transform var(--transition-base);
  transform-origin: left;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 56px;
  height: 56px;
  background: var(--color-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  transition: background var(--transition-base);
}

.service-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--color-secondary);
  fill: none;
}

.service-card:hover .service-icon {
  background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
}

.service-card:hover .service-icon svg {
  stroke: var(--color-white);
}

.service-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.6rem;
}

.service-text {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.65;
}

/* ── Sección de calidad / logos ─────────────────────────────── */
.quality-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 2.5rem;
  margin-top: 2rem;
}

.quality-logo-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0.8;
  transition: opacity var(--transition-fast);
}

.quality-logo-item:hover { opacity: 1; }

.quality-logo-item img {
  height: 80px;
  width: auto;
  object-fit: contain;
}

.quality-logo-label {
  font-family: var(--font-heading);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-light);
  text-align: center;
}

/* ── CTA final ──────────────────────────────────────────────── */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, #005299 50%, var(--color-dark) 100%);
  padding: clamp(3rem, 7vw, 6rem) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(0,180,216,0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(0,119,204,0.15) 0%, transparent 50%);
}

.cta-inner {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin-inline: auto;
}

.cta-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 1rem;
}

.cta-text {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 2rem;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

/* ── Footer ─────────────────────────────────────────────────── */
#site-footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.75);
  padding-top: clamp(3rem, 6vw, 5rem);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .logo-main { font-size: 1.4rem; }
.footer-tagline {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  margin-top: 0.75rem;
  line-height: 1.7;
}

.footer-contact {
  margin-top: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-contact a,
.footer-contact address {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.65);
  transition: color var(--transition-fast);
}

.footer-contact a:hover { color: var(--color-accent); }

.footer-contact svg {
  width: 16px;
  height: 16px;
  min-width: 16px;
  stroke: var(--color-accent);
  fill: none;
  margin-top: 2px;
}

.footer-col-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: 1rem;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.footer-nav a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.footer-nav a::before {
  content: '›';
  color: var(--color-accent);
  font-size: 1rem;
}

.footer-nav a:hover {
  color: var(--color-white);
  padding-left: 4px;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-block: 1.5rem;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
}

.footer-legal {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-legal a {
  color: rgba(255,255,255,0.4);
  transition: color var(--transition-fast);
}

.footer-legal a:hover { color: var(--color-accent); }

/* ── Botones flotantes sociales (WhatsApp + Telegram) ────────── */
.whatsapp-float,
.telegram-float {
  position: fixed;
  right: 1.25rem;
  z-index: 900;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: white;
  border-radius: 100px;
  padding: 0.65rem 1.1rem 0.65rem 0.75rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.82rem;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.whatsapp-float {
  bottom: 1.25rem;
  background: #25d366;
  box-shadow: 0 4px 18px rgba(37, 211, 102, 0.45);
}

.telegram-float {
  bottom: 5rem;
  background: #2CA5E0;
  box-shadow: 0 4px 18px rgba(44, 165, 224, 0.45);
}

.whatsapp-float:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(37, 211, 102, 0.55);
  background: #1fba58;
}

.telegram-float:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(44, 165, 224, 0.55);
  background: #1a8fc7;
}

.whatsapp-float svg,
.telegram-float svg {
  width: 24px;
  height: 24px;
  fill: white;
  flex-shrink: 0;
}

.whatsapp-float .wa-text,
.telegram-float .tg-text { display: block; }

/* Pulso sutil en WhatsApp */
.whatsapp-float::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: #25d366;
  animation: waPulse 2.8s ease infinite;
  z-index: -1;
}

@keyframes waPulse {
  0%   { transform: scale(1); opacity: 0.55; }
  70%  { transform: scale(1.35); opacity: 0; }
  100% { transform: scale(1.35); opacity: 0; }
}

/* ── Cookie Banner ──────────────────────────────────────────── */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 1.25rem 0;
  box-shadow: 0 -4px 24px rgba(0,0,0,0.25);
  transform: translateY(0);
  transition: transform var(--transition-slow);
}

.cookie-banner.hidden {
  transform: translateY(110%);
}

.cookie-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.cookie-text {
  flex: 1;
  min-width: 280px;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.9);
  line-height: 1.6;
}

.cookie-text a { color: var(--color-accent); text-decoration: underline; }

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
}

.cookie-btn-accept {
  background: var(--color-accent);
  color: var(--color-dark);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.55rem 1.25rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: none;
  transition: background var(--transition-fast);
}
.cookie-btn-accept:hover { background: #00cef5; }

.cookie-btn-reject {
  background: transparent;
  color: rgba(255,255,255,0.7);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid rgba(255,255,255,0.25);
  transition: all var(--transition-fast);
}
.cookie-btn-reject:hover {
  border-color: rgba(255,255,255,0.6);
  color: var(--color-white);
}

.cookie-btn-config {
  background: transparent;
  color: rgba(255,255,255,0.6);
  font-size: 0.8rem;
  padding: 0.45rem 0.8rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: none;
  font-family: var(--font-body);
  text-decoration: underline;
  transition: color var(--transition-fast);
}
.cookie-btn-config:hover { color: var(--color-accent); }

/* Modal cookies */
.cookie-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.cookie-modal.open {
  opacity: 1;
  visibility: visible;
}

.cookie-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10,15,30,0.75);
}

.cookie-modal-box {
  position: relative;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  max-width: 540px;
  width: 100%;
  padding: 2rem;
  box-shadow: var(--shadow-xl);
  max-height: 90vh;
  overflow-y: auto;
}

.cookie-modal-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.cookie-category {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  margin-bottom: 0.75rem;
}

.cookie-category-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.cookie-category-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-text);
}

.cookie-toggle {
  position: relative;
  width: 44px;
  height: 24px;
}

.cookie-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.cookie-toggle-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background: var(--color-border);
  border-radius: 100px;
  transition: all var(--transition-fast);
}

.cookie-toggle-slider::before {
  content: '';
  position: absolute;
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background: white;
  border-radius: 50%;
  transition: all var(--transition-fast);
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

.cookie-toggle input:checked + .cookie-toggle-slider {
  background: var(--color-accent);
}

.cookie-toggle input:checked + .cookie-toggle-slider::before {
  transform: translateX(20px);
}

.cookie-toggle input:disabled + .cookie-toggle-slider {
  opacity: 0.6;
  cursor: not-allowed;
}

.cookie-category-desc {
  font-size: 0.83rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

.cookie-modal-footer {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

/* ── Breadcrumb ─────────────────────────────────────────────── */
.breadcrumb-section {
  background: var(--color-light);
  padding: calc(var(--header-h) + 1.5rem) 0 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-light);
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--color-secondary);
  transition: color var(--transition-fast);
}

.breadcrumb a:hover { color: var(--color-primary); }

.breadcrumb-sep {
  color: var(--color-text-light);
  opacity: 0.5;
}

.breadcrumb-current {
  color: var(--color-text);
  font-weight: 600;
}

/* ── Page Hero (subpáginas) ──────────────────────────────────── */
.page-hero {
  position: relative;
  padding: calc(var(--header-h) + 4rem) 0 4rem;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-dark) 100%);
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('../assets/img/2020/11/mt-sample-background.bk.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.12;
}

.page-hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.page-hero-label {
  display: inline-block;
  background: rgba(0,180,216,0.2);
  border: 1px solid rgba(0,180,216,0.35);
  color: var(--color-accent);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.35rem 0.9rem;
  border-radius: 100px;
  margin-bottom: 1rem;
}

.page-hero-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 1rem;
}

.page-hero-text {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  line-height: 1.7;
}

/* ── Especificaciones técnicas ──────────────────────────────── */
.specs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.spec-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: var(--color-light);
  padding: 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.spec-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.spec-icon svg {
  width: 20px;
  height: 20px;
  stroke: white;
  fill: none;
}

.spec-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-light);
  font-family: var(--font-heading);
  font-weight: 600;
}

.spec-value {
  font-weight: 700;
  color: var(--color-primary);
  font-size: 0.95rem;
  margin-top: 0.2rem;
}

/* ── Galería ─────────────────────────────────────────────────── */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.gallery-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  aspect-ratio: 4/3;
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover img { transform: scale(1.05); }

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,58,112,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.gallery-item:hover .gallery-overlay { opacity: 1; }

.gallery-overlay svg {
  width: 36px;
  height: 36px;
  stroke: white;
  fill: none;
}

/* ── Formulario de contacto ──────────────────────────────────── */
.contact-section {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text);
  margin-bottom: 0.4rem;
  font-family: var(--font-heading);
}

.form-group label .required {
  color: #e53e3e;
  margin-left: 2px;
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-control:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(0,180,216,0.12);
}

.form-control.error {
  border-color: #e53e3e;
  box-shadow: 0 0 0 4px rgba(229,62,62,0.1);
}

.form-control.valid {
  border-color: var(--color-success);
}

.form-error-msg {
  font-size: 0.8rem;
  color: #e53e3e;
  margin-top: 0.3rem;
  display: none;
}

.form-control.error ~ .form-error-msg { display: block; }

textarea.form-control {
  resize: vertical;
  min-height: 130px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  cursor: pointer;
}

.form-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  min-width: 18px;
  margin-top: 2px;
  cursor: pointer;
  accent-color: var(--color-secondary);
}

.form-checkbox-label {
  font-size: 0.85rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

.form-checkbox-label a {
  color: var(--color-secondary);
  text-decoration: underline;
}

/* Campo honeypot */
.hp-field { display: none !important; visibility: hidden; }

.form-msg {
  display: none;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  margin-top: 1rem;
}

.form-msg.success {
  display: block;
  background: rgba(0,200,151,0.1);
  border: 1px solid rgba(0,200,151,0.3);
  color: #00a878;
}

.form-msg.error {
  display: block;
  background: rgba(229,62,62,0.1);
  border: 1px solid rgba(229,62,62,0.3);
  color: #c53030;
}

/* Info de contacto */
.contact-info { display: flex; flex-direction: column; gap: 1.5rem; }

.contact-info-card {
  background: var(--color-light);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  border: 1px solid var(--color-border);
}

.contact-info-title {
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-secondary);
  margin-bottom: 0.75rem;
  font-family: var(--font-heading);
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.6rem;
  font-size: 0.9rem;
  color: var(--color-text);
}

.contact-info-item:last-child { margin-bottom: 0; }

.contact-info-item svg {
  width: 18px;
  height: 18px;
  min-width: 18px;
  stroke: var(--color-secondary);
  fill: none;
  margin-top: 1px;
}

.contact-info-item a {
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.contact-info-item a:hover { color: var(--color-secondary); }

/* ── Animaciones de entrada ─────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

/* ── Utilidades ─────────────────────────────────────────────── */
.mt-1  { margin-top: 0.5rem; }
.mt-2  { margin-top: 1rem; }
.mt-3  { margin-top: 1.5rem; }
.mt-4  { margin-top: 2rem; }
.mb-1  { margin-bottom: 0.5rem; }
.mb-2  { margin-bottom: 1rem; }
.mb-3  { margin-bottom: 1.5rem; }
.mb-4  { margin-bottom: 2rem; }

.pt-header { padding-top: var(--header-h); }

.separator {
  border: none;
  border-top: 1px solid var(--color-border);
  margin-block: 2rem;
}

.highlight-box {
  background: linear-gradient(135deg, var(--color-primary), #005299);
  border-radius: var(--radius-lg);
  padding: 2rem;
  color: white;
  position: relative;
  overflow: hidden;
}

.highlight-box::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 250px;
  height: 250px;
  background: rgba(0,180,216,0.12);
  border-radius: 50%;
}

.highlight-box h3 { color: white; margin-bottom: 0.75rem; }
.highlight-box p  { color: rgba(255,255,255,0.8); margin-bottom: 1.25rem; }

/* ── Tabla de características ──────────────────────────────── */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.compare-table th {
  background: var(--color-primary);
  color: white;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  padding: 1rem 1.25rem;
  text-align: left;
}

.compare-table td {
  padding: 0.9rem 1.25rem;
  font-size: 0.9rem;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

.compare-table tr:nth-child(even) td { background: var(--color-light); }
.compare-table tr:last-child td { border-bottom: none; }

.compare-yes { color: var(--color-success); font-weight: 700; }
.compare-no  { color: var(--color-text-light); }

/* ── Aviso legal / privacidad — contenido ─────────────────── */
.legal-content {
  max-width: 800px;
  margin-inline: auto;
  padding-block: clamp(3rem, 6vw, 5rem);
}

.legal-content h2 {
  font-size: 1.4rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border);
}

.legal-content h3 {
  font-size: 1.1rem;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.legal-content p,
.legal-content li {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--color-text);
  margin-bottom: 0.75rem;
}

.legal-content ul,
.legal-content ol {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.legal-content ol { list-style: decimal; }

.legal-content a {
  color: var(--color-secondary);
  text-decoration: underline;
}

.legal-notice {
  background: var(--color-light);
  border-left: 4px solid var(--color-accent);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  color: var(--color-text);
}

/* ── Tabs ────────────────────────────────────────────────────── */
.tabs-nav {
  display: flex;
  gap: 0.25rem;
  border-bottom: 2px solid var(--color-border);
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 0.75rem 1.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--color-text-light);
  cursor: pointer;
  border: none;
  background: none;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition-fast);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.tab-btn:hover { color: var(--color-primary); }

.tab-btn.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-accent);
  background: var(--color-light);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Mapa placeholder ────────────────────────────────────────── */
.map-placeholder {
  background: var(--color-light);
  border-radius: var(--radius-lg);
  height: 320px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  border: 1px solid var(--color-border);
  color: var(--color-text-light);
  font-size: 0.9rem;
  text-align: center;
  padding: 1rem;
}

.map-placeholder svg {
  width: 48px;
  height: 48px;
  stroke: var(--color-secondary);
  fill: none;
  opacity: 0.6;
}

/* ── Botón cookies flotante ──────────────────────────────────── */
.cookie-settings-btn {
  position: fixed;
  bottom: 1.75rem;
  left: 1.75rem;
  z-index: 890;
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  opacity: 0.7;
}

.cookie-settings-btn:hover {
  transform: scale(1.1);
  opacity: 1;
  background: var(--color-secondary);
}

.cookie-settings-btn svg {
  width: 20px;
  height: 20px;
  stroke: white;
  fill: none;
}

/* ── Stat counters ───────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.stat-item {
  text-align: center;
  padding: 1.5rem 1rem;
}

.stat-number {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--color-accent);
  line-height: 1;
  display: block;
}

.stat-label {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.7);
  margin-top: 0.4rem;
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: 0.05em;
}

/* ── Timeline experiencia ────────────────────────────────────── */
.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-accent), var(--color-secondary));
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  padding-bottom: 2rem;
  padding-left: 1.5rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 4px;
  width: 12px;
  height: 12px;
  background: var(--color-accent);
  border-radius: 50%;
  border: 2px solid white;
  box-shadow: 0 0 0 3px rgba(0,180,216,0.25);
  transform: translateX(1px);
}

.timeline-year {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.35rem;
}

.timeline-title {
  font-weight: 700;
  color: var(--color-primary);
  font-size: 1rem;
  margin-bottom: 0.4rem;
}

.timeline-desc {
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.65;
}

/* ── Página hero con imagen ──────────────────────────────────── */
.product-detail-hero {
  position: relative;
  height: clamp(320px, 45vw, 520px);
  overflow: hidden;
}

.product-detail-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-detail-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(0,15,40,0.75) 0%,
    rgba(0,58,112,0.4) 60%,
    transparent 100%
  );
  display: flex;
  align-items: flex-end;
  padding: 3rem;
}

.product-detail-hero-overlay > * { position: relative; z-index: 1; }

/* ============================================================
   MEJORAS DE LAYOUT (L01–L20)
   ============================================================ */

/* L01: Header — borde acento inferior al hacer scroll */
#site-header.scrolled {
  box-shadow: 0 4px 0 rgba(0,180,216,.3), var(--shadow-lg);
}

/* L02: Badge icon — escala en hover */
.badge-icon {
  transition: all var(--transition-base);
}
.badge-item:hover .badge-icon {
  background: rgba(0,180,216,.3);
  transform: scale(1.14);
}

/* L03: Product card img — aspect-ratio uniforme */
.product-card-img {
  aspect-ratio: 16 / 9;
  height: auto;
  min-height: 0;
}

/* L04: Gallery zoom más pronunciado + brillo */
.gallery-item:hover img {
  transform: scale(1.12);
  filter: brightness(1.06);
}

/* L05: Telegram — animación de pulso (igual que WhatsApp) */
.telegram-float::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: #2CA5E0;
  animation: tgPulse 3.2s ease infinite 0.7s;
  z-index: -1;
}
@keyframes tgPulse {
  0%   { transform: scale(1);    opacity: 0.5; }
  70%  { transform: scale(1.38); opacity: 0;   }
  100% { transform: scale(1.38); opacity: 0;   }
}

/* L06: Backdrop overlay del menú móvil */
#mobile-menu-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 997;
  opacity: 0;
  transition: opacity var(--transition-base);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
}
#mobile-menu-backdrop.open {
  display: block;
  opacity: 1;
}

/* L07: Barra de progreso de lectura */
#reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-secondary), var(--color-accent));
  background-size: 200% 100%;
  z-index: 1001;
  transition: width 0.12s linear;
  animation: progressShimmer 2s linear infinite;
  pointer-events: none;
}
@keyframes progressShimmer {
  0%   { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

/* L08: Botón volver arriba */
#back-to-top {
  position: fixed;
  bottom: 8rem;
  left: 1.75rem;
  z-index: 889;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-secondary);
  color: white;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(14px);
  transition: opacity var(--transition-base), transform var(--transition-base), background var(--transition-fast), box-shadow var(--transition-fast);
  pointer-events: none;
}
#back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
#back-to-top:hover {
  background: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}
#back-to-top svg {
  width: 20px;
  height: 20px;
  stroke: white;
  fill: none;
  stroke-width: 2.5;
}

/* L09: Sistema de toast */
#toast-container {
  position: fixed;
  top: calc(var(--header-h) + 1rem);
  right: 1.25rem;
  z-index: 9998;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
  max-width: 320px;
}
.toast {
  background: var(--color-dark);
  color: white;
  padding: 0.75rem 1.1rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-family: var(--font-heading);
  font-weight: 600;
  pointer-events: auto;
  transform: translateX(110%);
  opacity: 0;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-left: 3px solid var(--color-accent);
}
.toast.show { transform: translateX(0); opacity: 1; }
.toast-success { background: #064e3b; border-left-color: var(--color-success); }
.toast-error   { background: #7f1d1d; border-left-color: #e53e3e; }
.toast-info    { background: var(--color-primary); border-left-color: var(--color-accent); }

/* L10: Lightbox de galería */
#lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 10001;
  background: rgba(0, 0, 0, 0.96);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.75rem;
}
#lightbox.open { display: flex; }
#lightbox-img {
  max-width: min(90vw, 1100px);
  max-height: 78vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 0 80px rgba(0,0,0,.8);
  display: block;
}
#lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  color: white;
  cursor: pointer;
  font-size: 1.5rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}
#lightbox-close:hover { background: rgba(255,255,255,0.28); }
#lightbox-prev,
#lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  color: white;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
  font-size: 1.3rem;
}
#lightbox-prev:hover,
#lightbox-next:hover { background: rgba(255,255,255,0.28); }
#lightbox-prev { left: 1.25rem; }
#lightbox-next { right: 1.25rem; }
#lightbox-caption {
  color: rgba(255,255,255,0.75);
  font-size: 0.9rem;
  text-align: center;
  font-family: var(--font-heading);
  max-width: 600px;
  padding-inline: 1rem;
}
#lightbox-counter {
  color: rgba(255,255,255,0.4);
  font-size: 0.8rem;
  font-family: var(--font-heading);
}

/* L11: Spec items — elevación en hover */
.spec-item {
  transition: all var(--transition-base);
}
.spec-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

/* L12: Footer — iconos de redes sociales */
.footer-social {
  display: flex;
  gap: 0.55rem;
  margin-top: 1.1rem;
}
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  color: rgba(255,255,255,0.65);
  text-decoration: none;
}
.footer-social a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
  transform: translateY(-2px);
}
.footer-social svg {
  width: 17px;
  height: 17px;
  fill: currentColor;
}

/* L13: Contact info cards — hover border */
.contact-info-card {
  transition: all var(--transition-base);
}
.contact-info-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

/* L14: Compare table — primera columna sticky */
.compare-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.compare-table td:first-child,
.compare-table th:first-child {
  position: sticky;
  left: 0;
  z-index: 2;
  background: inherit;
}
.compare-table th:first-child { background: var(--color-primary); }
.compare-table tr:nth-child(even) td:first-child { background: var(--color-light); }
.compare-table tr:nth-child(odd) td:first-child  { background: var(--color-white); }

/* L15: Timeline dots — pulso suave */
.timeline-item::before {
  animation: timelineDotPulse 3s ease infinite;
}
@keyframes timelineDotPulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(0,180,216,0.25); }
  50%       { box-shadow: 0 0 0 7px rgba(0,180,216,0.08); }
}

/* L16: Dropdown items — acento izquierdo en hover */
.nav-dropdown a {
  border-left: 2px solid transparent;
}
.nav-dropdown a:hover {
  border-left-color: var(--color-accent);
}

/* L17: Focus visible universal */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* L18: Contador de caracteres */
.char-counter {
  font-size: 0.78rem;
  color: var(--color-text-light);
  text-align: right;
  margin-top: 0.3rem;
  font-family: var(--font-heading);
  transition: color var(--transition-fast);
}
.char-counter.near-limit { color: var(--color-warning); }
.char-counter.at-limit   { color: #e53e3e; font-weight: 700; }

/* L19: Elementos copiables */
.copyable {
  cursor: pointer;
  transition: color var(--transition-fast);
}
.copyable:hover {
  color: var(--color-accent) !important;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.copyable::after {
  content: ' 📋';
  font-size: 0.8em;
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.copyable:hover::after { opacity: 0.6; }

/* L20: Imágenes rotas — fallback visual */
img.img-error {
  background: var(--color-light);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
}