/* =============================================================
   Fontanería Cieza — styles.css
   Archetype: Glassmorphism minimalista (azul eléctrico + violeta)
   ============================================================= */

/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  --bg:        #eef2f8;
  --bg-2:      #e4ebf7;
  --paper:     #ffffff;
  --ink:       #0f172a;
  --ink-soft:  #1e293b;
  --ink-mute:  #64748b;
  --accent:    #2563eb;
  --accent-2:  #7c3aed;
  --accent-3:  #06b6d4;
  --deep:      #0b1220;
  --deep-2:    #111a2e;
  --cream:     #e7ecf7;
  --cream-mute: rgba(231,236,247,.68);
  --glass:     rgba(255,255,255,.6);
  --glass-soft: rgba(255,255,255,.4);
  --glass-border: rgba(255,255,255,.75);
  --glass-dark: rgba(255,255,255,.08);
  --glass-dark-border: rgba(255,255,255,.14);
  --line:      rgba(15,23,42,.1);
  --shadow-sm: 0 2px 10px rgba(15,23,42,.06);
  --shadow-md: 0 12px 32px rgba(15,23,42,.1);
  --shadow-lg: 0 24px 60px rgba(15,23,42,.14);
  --radius:    20px;
  --radius-sm: 12px;
  --display:   'Space Grotesk', 'Inter', sans-serif;
  --sans:      'Inter', sans-serif;
  --ease-out:  cubic-bezier(.16,1,.3,1);
}

/* =============================================================
   2. Reset
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: auto; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4, p { margin: 0; }
h1, h2, h3 { font-family: var(--display); font-weight: 600; text-wrap: balance; letter-spacing: -0.01em; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--ink); color: #fff; padding: .8rem 1.2rem; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

.container { width: 100%; max-width: 1180px; margin-inline: auto; padding-inline: 1.5rem; }
.container-narrow { max-width: 760px; }

/* =============================================================
   3. Reveal on scroll
   ============================================================= */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s var(--ease-out), transform .6s var(--ease-out); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* =============================================================
   4. Botones
   ============================================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .85rem 1.5rem;
  border-radius: 999px;
  font-weight: 600; font-size: .95rem;
  transition: transform .25s var(--ease-out), box-shadow .25s var(--ease-out), background .25s var(--ease-out);
  white-space: nowrap;
}
.btn-cta {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn-cta:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-whatsapp {
  background: #fff; color: var(--ink); border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}
.btn-whatsapp:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--accent-3); }
.btn-ghost { background: var(--glass); border: 1px solid var(--glass-border); backdrop-filter: blur(12px); color: var(--ink); }
.btn-block { width: 100%; }
.btn-outline { border: 1px solid var(--line); color: var(--ink-soft); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

/* =============================================================
   5. Header / Nav
   ============================================================= */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(238,242,248,.75);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease-out), box-shadow .3s var(--ease-out), background .3s var(--ease-out);
}
.site-header.is-scrolled { border-color: var(--line); box-shadow: var(--shadow-sm); background: rgba(238,242,248,.92); }

.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: .85rem; }

.brand { display: flex; align-items: center; gap: .6rem; }
.brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 11px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  color: #fff; font-family: var(--display); font-weight: 700; font-size: 1.05rem;
  flex-shrink: 0;
}
.brand-name { font-family: var(--display); font-weight: 600; font-size: .96rem; color: var(--ink); }

.main-nav { display: none; gap: 1.6rem; }
.main-nav a { font-size: .92rem; font-weight: 500; color: var(--ink-mute); position: relative; padding-block: .3rem; }
.main-nav a:hover { color: var(--ink); }

.nav-actions { display: flex; align-items: center; gap: .6rem; }
.nav-phone span { display: none; }
.nav-whatsapp span { display: none; }
.nav-burger {
  display: inline-flex; flex-direction: column; justify-content: center; gap: 4px;
  width: 40px; height: 40px; border-radius: 10px;
}
.nav-burger span { width: 20px; height: 2px; background: var(--ink); margin-inline: auto; transition: transform .3s var(--ease-out), opacity .3s var(--ease-out); }
.nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.mobile-menu { display: none; flex-direction: column; gap: .2rem; padding: .5rem 1.5rem 1.5rem; border-top: 1px solid var(--line); }
.mobile-menu.is-open { display: flex; }
.mobile-menu a { padding: .8rem .25rem; font-weight: 500; font-size: 1rem; border-bottom: 1px solid var(--line); }

@media (min-width: 720px) {
  .main-nav { display: flex; }
  .nav-burger { display: none; }
}
@media (max-width: 719px) {
  .nav-phone, .nav-whatsapp, .nav-cta { display: none; }
}

/* =============================================================
   6. Hero — mesh gradient + disponibilidad
   ============================================================= */
.hero { position: relative; padding-block: 3.5rem 4rem; overflow: hidden; }
.hero-mesh {
  position: absolute; inset: -20%;
  background:
    radial-gradient(circle at 15% 20%, rgba(37,99,235,.28) 0%, transparent 55%),
    radial-gradient(circle at 85% 15%, rgba(124,58,237,.24) 0%, transparent 55%),
    radial-gradient(circle at 50% 90%, rgba(6,182,212,.18) 0%, transparent 55%);
  filter: blur(50px) saturate(140%);
  animation: meshDrift 26s ease-in-out infinite;
  z-index: 0;
}
@keyframes meshDrift {
  0%, 100% { transform: translate(0,0) scale(1); }
  50% { transform: translate(-3%,2%) scale(1.08); }
}
@media (prefers-reduced-motion: reduce) { .hero-mesh { animation: none; } }

.hero-inner { position: relative; z-index: 1; display: grid; gap: 2.5rem; align-items: center; }
.hero-copy { max-width: 620px; }

.availability {
  display: inline-flex; align-items: center; gap: .55rem;
  background: var(--glass); border: 1px solid var(--glass-border); backdrop-filter: blur(14px);
  padding: .5rem 1rem; border-radius: 999px;
  font-size: .84rem; font-weight: 600; color: var(--ink-soft);
  margin-bottom: 1.3rem; box-shadow: var(--shadow-sm);
}
.availability-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--ink-mute); flex-shrink: 0; }
.availability-dot.is-live { background: #22c55e; box-shadow: 0 0 0 4px rgba(34,197,94,.18); animation: pulseDot 2s ease-in-out infinite; }
@keyframes pulseDot { 0%, 100% { box-shadow: 0 0 0 4px rgba(34,197,94,.18); } 50% { box-shadow: 0 0 0 7px rgba(34,197,94,.1); } }

.hero-title { font-size: clamp(2.2rem, 5.2vw, 3.4rem); font-weight: 600; margin-bottom: 1.1rem; line-height: 1.1; }
.hero-title .grad { background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { font-size: 1.08rem; color: var(--ink-mute); margin-bottom: 1.8rem; max-width: 46ch; }
.hero-actions { display: flex; gap: .9rem; flex-wrap: wrap; margin-bottom: 1.6rem; }
.hero-chips { display: flex; flex-wrap: wrap; gap: .6rem; }
.chip {
  display: inline-flex; align-items: center; gap: .4rem;
  background: var(--glass-soft); border: 1px solid var(--line);
  padding: .4rem .8rem; border-radius: 999px; font-size: .8rem; color: var(--ink-mute); font-weight: 500;
}
.chip-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent-3); }

.hero-visual { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); }
.hero-visual img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; }
.hero-visual::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(11,18,32,.35) 100%);
}

@media (min-width: 860px) {
  .hero-inner { grid-template-columns: 1.1fr .9fr; }
}

/* =============================================================
   7. Sections & Glass cards
   ============================================================= */
.section { padding-block: 4.5rem; position: relative; }
.section-alt { background: var(--deep); color: var(--cream); }
.section-alt .section-title { color: var(--cream); }
.section-alt .eyebrow { color: var(--accent-3); }
.section-alt .section-sub { color: var(--cream-mute); }
/* Dos secciones oscuras seguidas no necesitan el respiro completo de
   4.5rem a cada lado: sin eso, el tramo de color liso entre ambas se
   percibe como un hueco vacío. */
.section-alt + .section-alt { padding-top: 2.5rem; }

.eyebrow { display: block; font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--accent); margin-bottom: .7rem; }
.section-title { font-size: clamp(1.7rem, 3.4vw, 2.3rem); margin-bottom: .7rem; }
.section-sub { color: var(--ink-mute); font-size: 1.02rem; max-width: 56ch; margin-bottom: 2.5rem; }
.section-head { margin-bottom: 2.5rem; }
.section-head.center { text-align: center; margin-inline: auto; }
.section-head.center .section-sub { margin-inline: auto; }

.glass-card {
  background: var(--glass);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform .3s var(--ease-out), box-shadow .3s var(--ease-out);
}
@supports not (backdrop-filter: blur(1px)) {
  .glass-card { background: rgba(255,255,255,.88); }
}
.glass-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }

.glass-card-dark {
  /* Fondo sólido (no un simple tinte translúcido): esta tarjeta debe
     leerse igual de oscura tanto si va sobre una sección oscura como
     sobre una clara — un tinte del 8% se volvía casi invisible sobre
     fondo claro y el texto crema quedaba sin contraste. */
  background: rgba(11, 18, 32, .94);
  backdrop-filter: blur(18px);
  border: 1px solid var(--glass-dark-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

/* =============================================================
   7b. Fondo con degradado / foto — variedad visual en secciones
   que serían planas, en la paleta azul/violeta propia de esta web.
   ============================================================= */
.section-gradient { position: relative; overflow: hidden; }
.section-gradient::before {
  content: "";
  position: absolute; inset: -15%;
  background:
    radial-gradient(circle at 18% 22%, rgba(37,99,235,.35) 0%, transparent 58%),
    radial-gradient(circle at 82% 28%, rgba(124,58,237,.3) 0%, transparent 54%),
    radial-gradient(circle at 50% 92%, rgba(6,182,212,.22) 0%, transparent 58%);
  filter: blur(45px);
  animation: gradientDriftFC 26s ease-in-out infinite;
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 16%, #000 84%, transparent 100%);
  mask-image: linear-gradient(180deg, transparent 0%, #000 16%, #000 84%, transparent 100%);
  z-index: 0;
}
.section-gradient > .container { position: relative; z-index: 1; }
@keyframes gradientDriftFC {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-3%, 2%) scale(1.08); }
}
@media (prefers-reduced-motion: reduce) { .section-gradient::before { animation: none; } }

.section-bg-photo { position: relative; overflow: hidden; }
.section-bg-photo::before {
  content: "";
  position: absolute; inset: 0;
  background-image: var(--bg-photo);
  background-size: cover; background-position: center;
  filter: blur(6px) saturate(1.05);
  transform: scale(1.1);
  opacity: .3;
  -webkit-mask-image: linear-gradient(180deg, #000 0, #000 calc(100% - 70px), transparent 100%);
  mask-image: linear-gradient(180deg, #000 0, #000 calc(100% - 70px), transparent 100%);
}
.section-bg-photo::after {
  content: ""; position: absolute; inset: 0; background: var(--deep); opacity: .72;
  -webkit-mask-image: linear-gradient(180deg, #000 0, #000 calc(100% - 70px), transparent 100%);
  mask-image: linear-gradient(180deg, #000 0, #000 calc(100% - 70px), transparent 100%);
}
.section-bg-photo > .container { position: relative; z-index: 1; }
.section-bg-photo.section-alt::before { opacity: .22; }

/* =============================================================
   8b. Ficha del proveedor
   ============================================================= */
.card-provider { padding: 2rem; }
.card-provider > .eyebrow { color: var(--accent-3); }
.provider-main { display: flex; flex-wrap: wrap; gap: 1.4rem; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.provider-name { font-size: 1.3rem; margin-bottom: .3rem; color: var(--cream); }
.provider-category { font-size: .88rem; color: var(--cream-mute); margin-bottom: .7rem; }
.provider-rating { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; text-decoration: none; }
.provider-rating:hover .provider-reviews-count { color: var(--cream); text-decoration: underline; }
.provider-stars { color: var(--accent-3); font-size: 1rem; letter-spacing: 1px; }
.provider-rating-value { font-family: var(--display); font-weight: 700; color: var(--cream); }
.provider-reviews-count { font-size: .85rem; color: var(--cream-mute); }
.provider-google-link { flex-shrink: 0; border-color: var(--glass-dark-border); color: var(--cream); }
.provider-google-link:hover { border-color: var(--accent-3); color: var(--accent-3); }
.provider-attribution { display: flex; align-items: flex-start; gap: .5rem; font-size: .8rem; color: var(--cream-mute); }
.provider-attribution svg { flex-shrink: 0; margin-top: .1rem; }

/* =============================================================
   8c. Herramientas
   ============================================================= */
.grid-tools { display: grid; gap: 1.4rem; grid-template-columns: 1fr; margin-top: 2.5rem; }
.card-tool { padding: 1.8rem; }
.card-tool h3 { font-size: 1.1rem; margin-bottom: .5rem; color: var(--cream); }
.tool-intro { font-size: .9rem; color: var(--cream-mute); margin-bottom: 1.3rem; }

.checklist-item { display: flex; align-items: flex-start; gap: .7rem; padding: .7rem 0; border-bottom: 1px solid var(--glass-dark-border); cursor: pointer; }
.checklist-item:last-of-type { border-bottom: none; }
.checklist-item input { margin-top: .2rem; accent-color: var(--accent); width: 17px; height: 17px; flex-shrink: 0; }
.checklist-item span { font-size: .92rem; color: var(--cream); }
.checklist-result { margin-top: 1.2rem; padding: 1.1rem; border-radius: var(--radius-sm); background: var(--bg-2); }
.checklist-result-label { font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-mute); font-weight: 700; margin-bottom: .4rem; display: block; }
.checklist-verdict { font-size: .96rem; color: var(--ink); margin-bottom: .9rem; }
.checklist-actions { display: flex; gap: .6rem; flex-wrap: wrap; }
.checklist-actions .btn { padding: .6rem 1.1rem; font-size: .85rem; }

.tool-form { display: grid; gap: 1.1rem; margin-bottom: 1.3rem; }
.tool-row label { display: block; font-size: .85rem; font-weight: 600; color: var(--cream); margin-bottom: .4rem; }
.tool-row input[type="range"] { width: 100%; accent-color: var(--accent); }
.tool-row input[type="number"], .tool-row select {
  width: 100%; padding: .7rem .9rem; border-radius: 10px; border: 1px solid var(--line); background: #fff; color: var(--ink); font: inherit;
}
.tool-row output { font-family: var(--display); font-weight: 700; color: var(--accent-3); margin-left: .5rem; }
.tool-output { display: flex; gap: 1.2rem; flex-wrap: wrap; padding-top: 1rem; border-top: 1px solid var(--glass-dark-border); margin-bottom: .9rem; }
.tool-stat-value { display: block; font-family: var(--display); font-weight: 700; font-size: 1.4rem; background: linear-gradient(135deg, var(--accent-3) 0%, var(--accent-2) 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.tool-stat-label { font-size: .8rem; color: var(--cream-mute); }
.tool-note { font-size: .8rem; color: var(--cream-mute); }

@media (min-width: 780px) { .grid-tools { grid-template-columns: repeat(2, 1fr); } }

/* =============================================================
   9. Problemas más comunes
   ============================================================= */
.grid-problemas { display: grid; gap: 1.4rem; grid-template-columns: 1fr; }
.card-problema { padding: 1.8rem; display: flex; flex-direction: column; gap: 1rem; }
.card-problema-img { width: 100%; aspect-ratio: 16/10; object-fit: cover; border-radius: var(--radius-sm); }
.card-problema h3 { font-size: 1.12rem; margin-bottom: .5rem; }
.card-problema .diagnostico { color: var(--ink-mute); font-size: .92rem; }
.card-problema .solucion { font-size: .92rem; color: var(--ink-soft); }
.card-problema .solucion strong { color: var(--ink); }
.card-problema-actions { display: flex; gap: .6rem; margin-top: .3rem; flex-wrap: wrap; }
.card-problema-actions .btn { padding: .6rem 1.1rem; font-size: .85rem; }

@media (min-width: 720px) { .grid-problemas { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1020px) { .grid-problemas { grid-template-columns: repeat(3, 1fr); } }

/* =============================================================
   10. Antes de llamar a cualquier fontanero
   ============================================================= */
.trust-panel { padding: 2.4rem; display: grid; gap: 1.6rem; }
.trust-panel-head h2 { font-size: 1.5rem; margin-bottom: .6rem; color: var(--cream); }
.trust-panel-head p { color: var(--cream-mute); font-size: .96rem; max-width: 62ch; }
.trust-list { display: grid; gap: 1.1rem; grid-template-columns: 1fr; margin-top: .5rem; }
.trust-item { display: flex; gap: .9rem; align-items: flex-start; }
.trust-item-icon {
  width: 38px; height: 38px; border-radius: 11px; flex-shrink: 0;
  background: linear-gradient(135deg, rgba(37,99,235,.14), rgba(124,58,237,.14));
  color: var(--accent); display: flex; align-items: center; justify-content: center;
}
.trust-item h4 { font-size: .98rem; margin-bottom: .25rem; color: var(--cream); }
.trust-item p { font-size: .88rem; color: var(--cream-mute); }

@media (min-width: 780px) { .trust-list { grid-template-columns: repeat(3, 1fr); } }

/* =============================================================
   11. Zona de cobertura
   ============================================================= */
.grid-zonas { display: grid; gap: 1.2rem; grid-template-columns: 1fr; }
.zona-card { padding: 1.8rem; position: relative; }
.zona-card h3 { font-size: 1.15rem; margin-bottom: .5rem; color: var(--cream); }
.zona-card p { color: var(--cream-mute); font-size: .92rem; }
.zona-principal { border-color: rgba(37,99,235,.35); }
.zona-badge {
  display: inline-block; font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em;
  color: #fff; background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  padding: .3rem .7rem; border-radius: 999px; margin-bottom: .8rem;
}

@media (min-width: 720px) { .grid-zonas { grid-template-columns: repeat(3, 1fr); } }

/* =============================================================
   12. Cómo trabajamos (3 pasos)
   ============================================================= */
.grid-pasos { display: grid; gap: 1.4rem; grid-template-columns: 1fr; counter-reset: paso; }
.card-paso { padding: 1.8rem; position: relative; }
.card-paso-num {
  font-family: var(--display); font-weight: 700; font-size: 1.6rem;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  margin-bottom: .8rem; display: block;
}
.card-paso h3 { font-size: 1.08rem; margin-bottom: .5rem; color: var(--cream); }
.card-paso p { font-size: .92rem; color: var(--cream-mute); }

@media (min-width: 780px) { .grid-pasos { grid-template-columns: repeat(3, 1fr); } }

/* =============================================================
   13. Blog teaser
   ============================================================= */
.grid-blog-teaser { display: grid; gap: 1.4rem; grid-template-columns: 1fr; }
.card-blog { overflow: hidden; display: flex; flex-direction: column; }
.card-blog img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.card-blog-body { padding: 1.3rem 1.4rem 1.5rem; }
.card-blog-body span { font-size: .76rem; text-transform: uppercase; letter-spacing: .05em; color: var(--accent); font-weight: 700; }
.card-blog-body h3 { font-size: 1.02rem; margin-top: .5rem; }

@media (min-width: 720px) { .grid-blog-teaser { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1020px) { .grid-blog-teaser { grid-template-columns: repeat(4, 1fr); } }

/* =============================================================
   14. FAQ
   ============================================================= */
.faq-list { display: flex; flex-direction: column; gap: .9rem; max-width: 760px; }
.faq-item { padding: 0 1.5rem; }
.faq-item summary {
  padding-block: 1.2rem; font-weight: 600; font-size: .98rem; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  list-style: none; color: var(--ink);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; font-size: 1.3rem; color: var(--accent); flex-shrink: 0; transition: transform .25s var(--ease-out);
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { padding-bottom: 1.3rem; color: var(--ink-mute); font-size: .93rem; margin: 0; }

/* =============================================================
   15. Contacto
   ============================================================= */
.contact-grid { display: grid; gap: 2.5rem; }
.contact-methods { display: grid; gap: .9rem; margin-top: 1.6rem; }
.contact-method { display: flex; align-items: center; gap: .9rem; padding: 1.1rem 1.3rem; }
.contact-method svg { color: var(--accent); flex-shrink: 0; }
.contact-method strong { display: block; font-size: .92rem; color: var(--cream); }
.contact-method span span { font-size: .82rem; color: var(--cream-mute); }

.contact-form { padding: 2rem; display: flex; flex-direction: column; gap: 1.1rem; }
.form-row { display: flex; flex-direction: column; gap: .4rem; }
.form-row label { font-size: .85rem; font-weight: 600; color: var(--ink-soft); }
.form-row input, .form-row select, .form-row textarea {
  padding: .8rem 1rem; border-radius: 10px; border: 1px solid var(--line);
  background: #fff; font: inherit; color: var(--ink);
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

@media (min-width: 900px) { .contact-grid { grid-template-columns: 1fr 1.1fr; } }

/* =============================================================
   16. Footer
   ============================================================= */
.site-footer { background: var(--deep); color: var(--cream); padding-block: 3.5rem 1.6rem; }
.footer-grid { display: grid; gap: 2.2rem; grid-template-columns: 1fr; margin-bottom: 2.2rem; }
.footer-brand { font-family: var(--display); font-weight: 600; font-size: 1.05rem; color: #fff; display: block; margin-bottom: .8rem; }
.footer-grid p { color: var(--cream-mute); font-size: .9rem; }
.footer-grid h4 { font-size: .82rem; text-transform: uppercase; letter-spacing: .06em; color: var(--cream-mute); margin-bottom: .9rem; }
.footer-grid ul li { margin-bottom: .55rem; }
.footer-grid ul a { font-size: .9rem; color: var(--cream); }
.footer-grid ul a:hover { color: var(--accent-3); }
.footer-bottom { border-top: 1px solid var(--glass-dark-border); padding-top: 1.4rem; }
.footer-bottom p { font-size: .8rem; color: var(--cream-mute); }

@media (min-width: 720px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; } }

/* =============================================================
   17. WhatsApp flotante
   ============================================================= */
.whatsapp-float {
  position: fixed; right: 1.2rem; bottom: 1.2rem; z-index: 90;
  width: 58px; height: 58px; border-radius: 50%;
  background: #fff; color: #22c55e;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: transform .25s var(--ease-out);
}
.whatsapp-float:hover { transform: scale(1.08); }

/* =============================================================
   18. Artículo / blog
   ============================================================= */
.article-hero { padding-block: 3rem 2rem; }
.back-link { display: inline-block; margin-bottom: 1.4rem; font-size: .88rem; color: var(--accent); font-weight: 600; }
.article-meta span { font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--accent); font-weight: 700; }
.article-title { font-size: clamp(1.9rem, 4.4vw, 2.7rem); margin-block: .8rem 1.2rem; }
.demo-badge {
  display: inline-block; font-size: .82rem; font-weight: 600; color: var(--accent-2);
  background: rgba(124,58,237,.1); border: 1px dashed rgba(124,58,237,.4);
  padding: .5rem .9rem; border-radius: var(--radius-sm); margin-bottom: 2rem;
}
.demo-tag { font-size: .68rem; font-weight: 700; text-transform: uppercase; color: var(--accent-2); opacity: .8; letter-spacing: .05em; }

.article-featured { width: 100%; aspect-ratio: 16/9; object-fit: cover; border-radius: var(--radius); margin-bottom: 2.5rem; box-shadow: var(--shadow-md); }
.article-body { padding-bottom: 4rem; }
.article-body h2 { font-size: 1.4rem; margin-block: 2.2rem .8rem; }
.article-body h3 { font-size: 1.1rem; margin-block: 1.6rem .6rem; }
.article-body p { color: var(--ink-soft); font-size: 1.02rem; margin-bottom: 1.1rem; }
.article-body ul { margin-bottom: 1.1rem; padding-left: 1.3rem; list-style: disc; }
.article-body li { color: var(--ink-soft); margin-bottom: .5rem; }
.article-body a { color: var(--accent); font-weight: 600; }
.article-body a:hover { text-decoration: underline; }

.related-posts { background: var(--bg-2); padding-block: 3.5rem; }
.related-posts h2 { font-size: 1.3rem; margin-bottom: 1.6rem; }

.blog-hero { padding-block: 3rem 1rem; text-align: center; }
.grid-blog-full { display: grid; gap: 1.6rem; grid-template-columns: 1fr; padding-block: 2rem 4rem; }
@media (min-width: 720px) { .grid-blog-full { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1020px) { .grid-blog-full { grid-template-columns: repeat(3, 1fr); } }

/* =============================================================
   19. Utilidades varias
   ============================================================= */
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }

/* =============================================================
   20. Print
   ============================================================= */
@media print {
  .site-header, .whatsapp-float, .hero-mesh { display: none !important; }
}