/* ===== VARIABLES ===== */
:root {
  --dark:        #090B10;
  --dark-2:      #0E1118;
  --dark-3:      #161B26;
  --dark-4:      #1E2435;
  --blue:        #0EA5E9;
  --blue-bright: #38BDF8;
  --blue-dim:    #0369A1;
  --blue-glow:   rgba(14, 165, 233, 0.25);
  --blue-border: rgba(14, 165, 233, 0.3);
  --white:       #F0F8FF;
  --muted:       #94A3B8;
  --border:      rgba(255, 255, 255, 0.07);
  --green:       #22C55E;
  --green-wa:    #1A9E4A;
  --green-dark:  #147A38;
  --radius:      14px;
  --radius-lg:   22px;
  --shadow-blue: 0 4px 32px rgba(14, 165, 233, 0.2);
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: var(--white); background: var(--dark); line-height: 1.6; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }

/* ===== CONTAINER ===== */
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* ===== TOPBAR ===== */
.topbar { background: rgba(14, 165, 233, 0.12); border-bottom: 1px solid var(--blue-border); color: var(--white); font-size: 13px; padding: 8px 0; backdrop-filter: blur(8px); }
.topbar-inner { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.topbar-link { display: flex; align-items: center; gap: 6px; color: rgba(240,248,255,0.8); transition: color 0.2s; }
.topbar-link:hover { color: var(--blue-bright); }
.topbar-socials { display: flex; gap: 12px; margin-left: auto; }

/* ===== NAV ===== */
.nav { position: sticky; top: 0; z-index: 100; background: rgba(12, 14, 20, 0.92); border-bottom: 1px solid var(--border); backdrop-filter: blur(16px); }
.nav-inner { display: flex; align-items: center; height: 68px; gap: 32px; }
.nav-logo { font-size: 22px; font-weight: 800; flex-shrink: 0; }
.logo-lumit { color: var(--white); }
.logo-ing { color: var(--blue); font-weight: 500; }
.nav-links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-links a { font-size: 14px; font-weight: 500; color: var(--muted); padding: 8px 14px; border-radius: 8px; transition: all 0.2s; }
.nav-links a:hover { color: var(--white); background: var(--dark-3); }
.nav-cta { background: var(--blue) !important; color: var(--dark) !important; font-weight: 700 !important; }
.nav-cta:hover { background: var(--blue-bright) !important; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; margin-left: auto; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--white); border-radius: 2px; transition: all 0.3s; }

/* ===== BUTTONS ===== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 28px; border-radius: 4px; font-size: 15px; font-weight: 600; transition: all 0.2s; cursor: pointer; border: 2px solid transparent; }
.btn-primary { background: var(--blue); color: var(--dark); font-weight: 700; }
.btn-primary:hover { background: var(--blue-bright); transform: translateY(-2px); box-shadow: var(--shadow-blue); }
.btn-whatsapp { background: var(--green-wa); color: #fff; }
.btn-whatsapp:hover { background: var(--green-dark); transform: translateY(-2px); box-shadow: 0 4px 20px rgba(37,211,102,0.35); }
.btn-outline { background: transparent; color: var(--blue); border-color: var(--blue-border); }
.btn-outline:hover { background: var(--blue-glow); border-color: var(--blue); }
.btn-outline-light { background: transparent; color: var(--white); border: 2px solid rgba(255,255,255,0.3); }
.btn-outline-light:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.6); }
.btn-full { width: 100%; }
.btn-lg { padding: 16px 36px; font-size: 16px; }

/* ===== SECTIONS ===== */
.section { padding: 88px 0; }
.section-label { display: inline-block; background: rgba(14,165,233,0.12); color: var(--blue-bright); font-size: 11px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; padding: 6px 14px; border-radius: 20px; margin-bottom: 16px; border: 1px solid var(--blue-border); }
.section-title { font-size: clamp(28px, 4vw, 44px); font-weight: 800; color: var(--white); line-height: 1.15; margin-bottom: 16px; }
.section-subtitle { font-size: 17px; color: var(--muted); max-width: 540px; line-height: 1.75; margin-bottom: 52px; }

/* ===== HERO ===== */
.hero { background: var(--dark); padding: 80px 0 0; position: relative; overflow: hidden; }
.hero::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(14,165,233,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue-border), transparent);
}
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; position: relative; padding-bottom: 80px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: var(--dark-3); border: 1px solid var(--border); border-radius: 20px; padding: 6px 14px; font-size: 13px; font-weight: 500; color: var(--muted); margin-bottom: 24px; }
.hero-title { font-size: clamp(32px, 4.5vw, 54px); font-weight: 800; color: var(--white); line-height: 1.1; margin-bottom: 20px; }
.hero-title span { color: var(--blue); }
.hero-subtitle { font-size: 17px; color: var(--muted); line-height: 1.75; margin-bottom: 32px; max-width: 460px; }
.hero-subtitle strong { color: var(--blue-bright); font-weight: 600; }
.hero-bullets { display: flex; flex-direction: column; gap: 12px; margin-bottom: 40px; }
.hero-bullets li { display: flex; align-items: center; gap: 10px; font-size: 15px; font-weight: 500; color: var(--white); }
.check { display: flex; align-items: center; justify-content: center; width: 20px; height: 20px; background: var(--blue); color: var(--dark); border-radius: 50%; font-size: 11px; font-weight: 800; flex-shrink: 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 36px; }
.hero-social-proof { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--muted); }
.hero-social-proof .stars { color: #F59E0B; font-size: 15px; letter-spacing: 2px; }

/* Hero image */
.hero-visual { position: relative; }
.hero-img-wrap { position: relative; overflow: hidden; box-shadow: 0 0 80px rgba(14,165,233,0.12), 0 24px 64px rgba(0,0,0,0.6); }
.hero-img-wrap img { width: 100%; display: block; }

/* Hero mini features */
.hero-mini-features { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 28px; }
.hero-mini-features span { display: flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 500; color: var(--muted); }
.mini-icon { font-size: 15px; }

/* ===== PROBLEMA ===== */
.section-problema { background: var(--dark-2); }
.problema-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; margin-top: 48px; }
.problema-card { background: var(--dark-3); border-radius: var(--radius); padding: 28px 24px; border: 1px solid var(--border); transition: all 0.3s; }
.problema-card:hover { border-color: var(--blue-border); box-shadow: var(--shadow-blue); transform: translateY(-4px); }
.problema-icon { font-size: 34px; margin-bottom: 16px; }
.problema-card h3 { font-size: 16px; font-weight: 700; color: var(--white); margin-bottom: 10px; }
.problema-card p { font-size: 14px; color: var(--muted); line-height: 1.7; }

/* ===== CÓMO FUNCIONA ===== */
.section-como { background: var(--dark); position: relative; overflow: hidden; }
.section-como::before { content: ''; position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%); width: 700px; height: 700px; background: radial-gradient(circle, rgba(14,165,233,0.06) 0%, transparent 70%); pointer-events: none; }
.como-steps { display: flex; align-items: flex-start; gap: 0; margin-top: 48px; position: relative; }
.como-step { flex: 1; background: var(--dark-3); border-radius: var(--radius); padding: 32px 28px; border: 1px solid var(--border); position: relative; transition: border-color 0.3s; }
.como-step:hover { border-color: var(--blue-border); }
.como-arrow { font-size: 22px; color: var(--blue-dim); padding: 0 14px; flex-shrink: 0; margin-top: 52px; }
.step-number { width: 44px; height: 44px; background: var(--blue); color: var(--dark); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 18px; font-weight: 800; margin-bottom: 16px; }
.step-content h3 { font-size: 16px; font-weight: 700; color: var(--white); margin-bottom: 10px; }
.step-content p { font-size: 14px; color: var(--muted); line-height: 1.7; }
.como-disclaimer { margin-top: 40px; text-align: center; font-size: 14px; font-weight: 600; color: var(--blue-bright); letter-spacing: 1px; opacity: 0.8; }
.como-instalacion { margin-top: 48px; }
.como-instalacion-titulo { font-size: 18px; font-weight: 700; color: var(--white); margin-bottom: 20px; text-align: center; }
.como-instalacion-img { display: block; margin: 0 auto; max-width: 100%; width: 946px; border-radius: 12px; box-shadow: 0 8px 32px rgba(0,0,0,0.4); }

/* ===== BENEFICIOS ===== */
.section-beneficios { background: var(--dark-2); }
.beneficios-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; margin-top: 48px; }
.beneficio-item { background: var(--dark-3); border-radius: var(--radius); padding: 28px 20px; border: 1px solid var(--border); text-align: center; transition: all 0.3s; }
.beneficio-item:hover { border-color: var(--blue-border); box-shadow: var(--shadow-blue); transform: translateY(-4px); }
.beneficio-icon { font-size: 30px; margin-bottom: 12px; }
.beneficio-item h4 { font-size: 15px; font-weight: 700; color: var(--white); margin-bottom: 8px; }
.beneficio-item p { font-size: 13px; color: var(--muted); line-height: 1.65; }

/* ===== PRODUCTOS ===== */
.section-productos { background: var(--dark); }
.productos-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; margin-top: 48px; }
.producto-card { background: var(--dark-2); border-radius: var(--radius-lg); border: 1px solid var(--border); overflow: hidden; display: flex; flex-direction: column; transition: all 0.3s; }
.producto-card:hover { border-color: var(--blue-border); box-shadow: var(--shadow-blue); transform: translateY(-6px); }
.producto-card--featured { border-color: var(--blue-border); box-shadow: 0 0 40px rgba(14,165,233,0.12); }
.producto-badge-container { padding: 16px 20px 12px; }
.producto-badge { display: inline-block; padding: 4px 12px; border-radius: 20px; font-size: 11px; font-weight: 700; background: rgba(14,165,233,0.12); color: var(--blue-bright); border: 1px solid var(--blue-border); }
.badge-popular { background: var(--blue); color: var(--dark); border-color: var(--blue); }
.badge-pro { background: rgba(34,197,94,0.12); color: #4ADE80; border: 1px solid rgba(34,197,94,0.3); }
.producto-img-placeholder { margin: 16px 20px; min-height: 200px; background: var(--dark-3); border-radius: var(--radius); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; border: 1px dashed rgba(255,255,255,0.1); }
.producto-img-placeholder .placeholder-label { font-size: 14px; font-weight: 600; color: var(--muted); }
.producto-img { width: 100%; height: 220px; object-fit: cover; display: block; }
.producto-info { padding: 4px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.producto-nombre { font-size: 22px; font-weight: 800; color: var(--white); margin-bottom: 10px; }
.producto-desc { font-size: 14px; color: var(--muted); line-height: 1.65; margin-bottom: 16px; }
.producto-specs { margin-bottom: 24px; display: flex; flex-direction: column; gap: 6px; }
.producto-specs li { font-size: 13px; color: var(--muted); padding-left: 16px; position: relative; }
.producto-specs li::before { content: '·'; position: absolute; left: 0; color: var(--blue); font-weight: 700; font-size: 16px; line-height: 1.2; }
.producto-actions { display: flex; flex-direction: column; gap: 10px; margin-top: auto; }

/* ===== COMPARATIVA ===== */
.section-comparativa { background: var(--dark-2); }
.comparativa-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.comparativa-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
  font-size: 0.95rem;
}
.comparativa-table thead th {
  padding: 20px 16px 16px;
  text-align: center;
  border-bottom: 2px solid var(--blue-border);
  background: var(--dark-3);
}
.comparativa-table thead th:first-child { text-align: left; }
.comparativa-table tbody td {
  padding: 14px 16px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
}
.comparativa-table tbody td:first-child { text-align: left; color: var(--white); font-weight: 500; }
.comparativa-table tbody tr:hover td { background: rgba(14,165,233,0.04); }
.col-as2, .col-as4, .col-as6 { color: var(--white) !important; }
.col-as4 { background: rgba(14,165,233,0.06); }
.comp-model-name { display: block; font-size: 1.05rem; font-weight: 700; color: var(--blue-bright); margin-bottom: 4px; }
.comp-model-tag { display: block; font-size: 0.78rem; color: var(--muted); }
.comp-tag-popular { color: #FBBF24 !important; }
.comp-row-download td { padding-top: 20px; padding-bottom: 20px; }
.btn-pdf {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1px solid var(--blue-border);
  color: var(--blue-bright);
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 4px;
  transition: background 0.2s, border-color 0.2s;
  white-space: nowrap;
}
.btn-pdf:hover { background: rgba(14,165,233,0.12); border-color: var(--blue); }
.comp-dureza-ref {
  margin-top: 28px;
  background: var(--dark-3);
  border: 1px solid var(--blue-border);
  border-radius: 4px;
  padding: 18px 24px;
}
.comp-dureza-title { font-size: 0.9rem; color: var(--muted); margin-bottom: 12px; }
.comp-dureza-title strong { color: var(--white); }
.comp-dureza-items { display: flex; flex-wrap: wrap; gap: 16px 32px; }
.comp-dureza-item { font-size: 0.88rem; color: var(--muted); display: flex; align-items: center; gap: 8px; }
.comp-dureza-item strong { color: var(--white); }
.comp-dureza-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.dot-leve     { background: #38BDF8; }
.dot-moderado { background: #FBBF24; }
.dot-alto     { background: #F87171; }
.comp-footer-note { text-align: center; margin-top: 24px; }

/* Mobile cards (hidden on desktop, shown via JS on mobile) */
.comp-card-mobile {
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.comp-card-featured { border-color: var(--blue-border); }
.comp-card-header {
  padding: 16px 20px 12px;
  background: var(--dark-4);
  border-bottom: 1px solid var(--border);
}
.comp-card-featured .comp-card-header { background: rgba(14,165,233,0.1); border-bottom-color: var(--blue-border); }
.comp-card-specs {
  list-style: none;
  padding: 0;
  margin: 0;
}
.comp-card-specs li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 11px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.comp-card-specs li span { color: var(--muted); }
.comp-card-specs li strong { color: var(--white); }
.comp-card-mobile .btn-pdf {
  display: block;
  margin: 16px 20px;
  text-align: center;
}
.comp-guide-link { color: var(--muted); font-size: 0.9rem; text-decoration: none; transition: color 0.2s; }
.comp-guide-link:hover { color: var(--blue-bright); }

/* ===== QUIZ ===== */
.section-quiz { background: var(--dark-2); }
.quiz-wrapper { max-width: 620px; margin: 48px auto 0; }
.quiz-box { background: var(--dark-3); border-radius: var(--radius-lg); padding: 40px; border: 1px solid var(--border); box-shadow: 0 8px 40px rgba(0,0,0,0.4); }
.quiz-progress { width: 100%; height: 3px; background: var(--dark-4); border-radius: 2px; margin-bottom: 32px; overflow: hidden; }
.quiz-progress-fill { display: block; height: 100%; background: var(--blue); border-radius: 2px; transition: width 0.4s ease; }
.quiz-step { display: none; }
.quiz-step.active { display: block; }
.quiz-question { font-size: 20px; font-weight: 700; color: var(--white); margin-bottom: 24px; line-height: 1.4; }
.quiz-options { display: flex; flex-direction: column; gap: 10px; }
.quiz-btn { display: flex; align-items: center; gap: 14px; padding: 16px 20px; border-radius: var(--radius); border: 1px solid var(--border); background: var(--dark-2); text-align: left; font-size: 15px; font-weight: 500; color: var(--muted); transition: all 0.2s; }
.quiz-btn:hover { border-color: var(--blue-border); background: rgba(14,165,233,0.08); color: var(--white); }
.quiz-btn-icon { font-size: 20px; flex-shrink: 0; }
.quiz-help { margin-top: 20px; font-size: 13px; color: var(--muted); text-align: center; }
.quiz-help a { color: var(--blue); font-weight: 600; }
.quiz-back { margin-top: 20px; font-size: 13px; color: var(--muted); background: none; border: none; cursor: pointer; padding: 4px 0; transition: color 0.2s; }
.quiz-back:hover { color: var(--blue); }
.quiz-result { padding: 8px 0; }
.quiz-result-icon { font-size: 44px; margin-bottom: 16px; }
.quiz-result h3 { font-size: 22px; font-weight: 800; color: var(--white); margin-bottom: 10px; }
.quiz-result-desc { font-size: 15px; color: var(--muted); margin-bottom: 8px; line-height: 1.65; }
.quiz-result-specs { font-size: 13px; color: var(--blue-bright); margin-bottom: 24px; font-weight: 500; }
.quiz-result-actions { display: flex; flex-direction: column; gap: 10px; }

/* ===== TESTIMONIOS ===== */
.section-testimonios { background: var(--dark); }
.testimonios-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; margin-top: 48px; }
.testimonio-card { background: var(--dark-2); border-radius: var(--radius); padding: 28px; border: 1px solid var(--border); display: flex; flex-direction: column; gap: 14px; transition: all 0.3s; }
.testimonio-card:hover { border-color: var(--blue-border); transform: translateY(-3px); }
.testimonio-stars { color: #F59E0B; font-size: 16px; letter-spacing: 2px; }
.testimonio-texto { font-size: 14px; color: var(--muted); line-height: 1.75; flex: 1; }
.testimonio-meta { display: flex; justify-content: space-between; align-items: center; padding-top: 12px; border-top: 1px solid var(--border); }
.testimonio-fecha { font-size: 12px; color: var(--muted); }
.testimonio-fuente { font-size: 11px; font-weight: 700; color: var(--blue-bright); background: rgba(14,165,233,0.1); border: 1px solid var(--blue-border); padding: 3px 8px; border-radius: 10px; }
.testimonios-cta { text-align: center; margin-top: 40px; }

/* ===== CONFIANZA ===== */
.section-confianza { background: var(--dark-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 64px 0; }
.confianza-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 32px; text-align: center; }
.confianza-icon { font-size: 34px; margin-bottom: 12px; }
.confianza-item h4 { font-size: 15px; font-weight: 700; color: var(--white); margin-bottom: 8px; }
.confianza-item p { font-size: 13px; color: var(--muted); line-height: 1.65; }

/* ===== FAQ ===== */
.section-faq { background: var(--dark); }
.faq-list { max-width: 720px; margin: 48px auto 0; display: flex; flex-direction: column; gap: 10px; }
.faq-item { background: var(--dark-2); border-radius: var(--radius); border: 1px solid var(--border); overflow: hidden; transition: border-color 0.2s; }
.faq-item:has(.faq-question.open) { border-color: var(--blue-border); }
.faq-question { width: 100%; padding: 20px 24px; display: flex; justify-content: space-between; align-items: center; gap: 16px; font-size: 15px; font-weight: 600; color: var(--white); text-align: left; transition: color 0.2s; }
.faq-question:hover { color: var(--blue-bright); }
.faq-question.open { color: var(--blue-bright); }
.faq-arrow { font-size: 11px; color: var(--muted); transition: transform 0.3s; flex-shrink: 0; }
.faq-question.open .faq-arrow { transform: rotate(180deg); color: var(--blue); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-answer.open { max-height: 400px; }
.faq-answer p { padding: 0 24px 20px; font-size: 14px; color: var(--muted); line-height: 1.8; }
.faq-answer a { color: var(--blue); font-weight: 600; }

/* ===== CTA FINAL ===== */
.section-cta-final { background: var(--dark-2); padding: 100px 0; text-align: center; position: relative; overflow: hidden; border-top: 1px solid var(--border); }
.section-cta-final::before { content: ''; position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%); width: 600px; height: 400px; background: radial-gradient(ellipse, rgba(14,165,233,0.1) 0%, transparent 70%); pointer-events: none; }
.cta-final-inner { position: relative; }
.cta-final-title { font-size: clamp(32px, 4vw, 50px); font-weight: 800; color: var(--white); margin-bottom: 16px; line-height: 1.2; }
.cta-final-title span { color: var(--blue); }
.cta-final-sub { font-size: 17px; color: var(--muted); margin-bottom: 40px; line-height: 1.7; }
.cta-final-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin-bottom: 24px; }
.cta-final-disclaimer { font-size: 13px; color: var(--muted); }

/* ===== FOOTER ===== */
.footer { background: var(--dark); border-top: 1px solid var(--border); }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1.5fr; gap: 48px; padding: 60px 0 48px; }
.footer-logo { font-size: 20px; font-weight: 800; margin-bottom: 12px; }
.footer-logo .logo-lumit { color: var(--white); }
.footer-logo .logo-ing { color: var(--blue); }
.footer-brand p { font-size: 14px; color: var(--muted); margin-bottom: 20px; line-height: 1.6; }
.footer-socials { display: flex; gap: 12px; }
.footer-socials a { color: var(--muted); transition: color 0.2s; }
.footer-socials a:hover { color: var(--blue-bright); }
.footer-links h5, .footer-contact h5 { font-size: 11px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 16px; }
.footer-links ul, .footer-contact ul { display: flex; flex-direction: column; gap: 10px; }
.footer-links a, .footer-contact a { font-size: 14px; color: var(--muted); transition: color 0.2s; }
.footer-links a:hover, .footer-contact a:hover { color: var(--white); }
.footer-disclaimer { font-size: 12px; color: var(--muted); margin-top: 16px; line-height: 1.5; opacity: 0.6; }
.footer-bottom { border-top: 1px solid var(--border); padding: 20px 0; font-size: 13px; color: var(--muted); opacity: 0.6; }

/* ===== WhatsApp float ===== */
.wa-float { position: fixed; bottom: 28px; right: 28px; z-index: 999; background: var(--green-wa); color: #fff; width: 56px; height: 56px; border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 20px rgba(26,158,74,0.3); transition: all 0.2s; }
.wa-float:hover { background: var(--green-dark); transform: scale(1.08); box-shadow: 0 6px 28px rgba(26,158,74,0.4); }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; padding-bottom: 60px; }
  .hero-floating-card { bottom: -10px; left: 0; }
  .como-steps { flex-direction: column; }
  .como-arrow { transform: rotate(90deg); margin: 0 auto; padding: 4px 0; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .productos-grid { grid-template-columns: 1fr 1fr; }
}

/* ── NAV MOBILE ── */
@media (max-width: 768px) {
  .nav-toggle { display: flex; position: relative; z-index: 300; }

  /* Hamburger → X cuando está abierto */
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .nav-links {
    display: none;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: #090B10;
    align-items: center;
    justify-content: center;
    gap: 8px;
    z-index: 200;
    padding: 80px 24px 40px;
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; text-align: center; }
  .nav-links a {
    font-size: 20px;
    padding: 14px 24px;
    display: block;
    border-radius: 0;
    border-bottom: 1px solid var(--border);
  }
  .nav-links li:last-child a { border-bottom: none; }
  .nav-links .nav-cta {
    margin-top: 16px;
    background: var(--blue) !important;
    color: var(--dark) !important;
    font-size: 18px;
    padding: 16px 24px;
    border-radius: 4px !important;
  }
}

/* ── GENERAL MOBILE ── */
@media (max-width: 640px) {
  .section { padding: 56px 0; }
  .container { padding: 0 16px; }

  /* Hero */
  .hero { padding: 60px 0 0; }
  .hero-title { font-size: clamp(2rem, 8vw, 2.8rem); }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { text-align: center; }
  .hero-mini-features { gap: 10px; }
  .hero-floating-card { display: none; }

  /* Topbar */
  .topbar-inner { justify-content: center; flex-wrap: wrap; gap: 8px; }
  .topbar-socials { margin-left: 0; }

  /* Productos: 1 columna, imagen completa */
  .productos-grid { grid-template-columns: 1fr; }
  .producto-img { height: auto; max-height: 300px; object-fit: contain; background: var(--dark-3); }

  /* Comparativa: cards apiladas en lugar de tabla */
  .comparativa-wrap { overflow-x: visible; }
  .comparativa-table { display: none; }
  .comp-cards-mobile { display: flex; flex-direction: column; gap: 16px; }

  /* Comparativa dureza ref */
  .comp-dureza-items { flex-direction: column; gap: 10px; }

  /* Quiz */
  .quiz-box { padding: 24px 16px; }
  .quiz-options { flex-direction: column; }
  .quiz-option { width: 100%; }

  /* Testimonios */
  .testimonios-grid { grid-template-columns: 1fr; }

  /* Beneficios */
  .beneficios-grid { grid-template-columns: 1fr 1fr; }

  /* Footer */
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }

  /* CTA final */
  .cta-final-actions { flex-direction: column; align-items: stretch; }
  .cta-final-actions .btn { text-align: center; }
}