:root {
  --bg: #07111f;
  --bg-soft: #0f172a;
  --card: #ffffff;
  --line: #dbe4ee;
  --text: #0f172a;
  --muted: #526173;
  --accent: #0ea5e9;
  --accent-2: #16a34a;
  --accent-3: #f97316;
  --shadow: 0 16px 40px rgba(2, 8, 23, 0.10);
  --radius: 22px;
  --container: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: #f8fafc;
  line-height: 1.55;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button { cursor: pointer; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
  background: #fff;
  padding: 10px 14px;
  border-radius: 10px;
  z-index: 1000;
}

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(7, 17, 31, 0.78);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 82px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand img {
  width: 72px;
  height: auto;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  color: #fff;
}
.brand-copy strong { font-size: 1.05rem; }
.brand-copy span {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.72);
}

.site-nav {
  display: flex;
  gap: 20px;
  align-items: center;
}
.site-nav a {
  color: rgba(255,255,255,0.88);
  font-weight: 600;
  font-size: 0.96rem;
}
.site-nav a:hover { color: #fff; }

.header-cta,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.2s ease, opacity 0.2s ease, background 0.2s ease;
}
.header-cta:hover,
.btn:hover {
  transform: translateY(-1px);
}
.header-cta {
  background: #25d366;
  color: #052e16;
}

.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--bg);
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.04);
}
.hero-overlay {
  background:
    linear-gradient(90deg, rgba(7,17,31,0.92) 0%, rgba(7,17,31,0.80) 35%, rgba(7,17,31,0.42) 60%, rgba(7,17,31,0.28) 100%),
    linear-gradient(180deg, rgba(7,17,31,0.18) 0%, rgba(7,17,31,0.44) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  color: #fff;
  padding: 110px 0 70px;
}

.hero-badges,
.hero-mini-seo {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.hero-badges span,
.hero-mini-seo span {
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 999px;
  padding: 9px 14px;
  font-size: 0.9rem;
}
.hero h1 {
  margin: 22px 0 16px;
  max-width: 880px;
  font-size: clamp(2.2rem, 4vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
}
.hero p {
  max-width: 760px;
  font-size: 1.12rem;
  color: rgba(255,255,255,0.86);
  margin: 0 0 28px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 26px;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #38bdf8);
  color: #fff;
  border: none;
}
.btn-secondary {
  background: rgba(255,255,255,0.10);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.18);
}

.authority-strip {
  background: #fff;
  padding: 24px 0 10px;
}
.authority-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.authority-grid article {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px;
  box-shadow: var(--shadow);
}
.authority-grid h2 {
  margin: 0 0 10px;
  font-size: 1.15rem;
}
.authority-grid p { margin: 0; color: var(--muted); }

.categories,
.products,
.how-it-works,
.about,
.seo-text,
.faq,
.cta-final {
  padding: 32px 0 20px;
}

.section-heading {
  margin-bottom: 20px;
}
.eyebrow {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--accent);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
}
.section-heading h2 {
  margin: 0 0 10px;
  font-size: clamp(1.75rem, 3vw, 3rem);
  line-height: 1.08;
}
.section-heading p {
  margin: 0;
  color: var(--muted);
  max-width: 820px;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.filter-chip {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  font-weight: 700;
}
.filter-chip.is-active {
  background: var(--bg-soft);
  border-color: var(--bg-soft);
  color: #fff;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}
.product-card {
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.product-card.is-hidden {
  display: none;
}
.product-media {
  position: relative;
  aspect-ratio: 16 / 8.2;
  background: #e2e8f0;
}
.product-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-tag {
  position: absolute;
  left: 16px;
  top: 16px;
  background: rgba(7,17,31,0.82);
  color: #fff;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
}
.product-body {
  padding: 22px;
}
.product-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}
.product-topline img {
  width: 62px;
  height: auto;
  opacity: 0.82;
}
.product-body h3 {
  margin: 10px 0 8px;
  font-size: 2rem;
  line-height: 1.05;
}
.product-body p {
  margin: 0 0 14px;
  color: var(--muted);
}
.product-highlights {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 0 0 18px;
}
.product-highlights li {
  background: #eff6ff;
  color: #0c4a6e;
  border-radius: 999px;
  padding: 7px 10px;
  font-size: 0.86rem;
  font-weight: 700;
}
.toggle-details {
  border: none;
  width: 100%;
  min-height: 50px;
  border-radius: 14px;
  background: var(--bg-soft);
  color: #fff;
  font-weight: 800;
}
.toggle-details[aria-expanded="true"] {
  background: #10213e;
}
.product-details {
  border-top: 1px solid var(--line);
  padding: 22px;
  background: #fcfdff;
}
.product-details h4 {
  margin: 0 0 10px;
  font-size: 1.12rem;
}
.product-details p { color: var(--muted); }
.details-grid {
  display: grid;
  gap: 18px;
}
.two-columns {
  grid-template-columns: 1.2fr 0.8fr;
}
.official-links,
.details-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 12px;
}
.official-links a,
.details-actions a {
  color: var(--accent);
  font-weight: 800;
}
.thumb-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 14px;
}
.thumb-row img {
  width: 110px;
  height: 110px;
  object-fit: cover;
  border-radius: 16px;
  border: 1px solid var(--line);
}
.tech-note {
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px;
}
.tech-note p { margin: 6px 0 0; }

.table-wrap {
  margin: 22px 0;
  overflow-x: auto;
}
table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
  background: #fff;
  border-radius: 18px;
  overflow: hidden;
}
thead th {
  background: #e8eef5;
  color: var(--text);
  text-align: left;
}
th, td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
}
tbody tr:nth-child(even) {
  background: #fbfdff;
}

.whatsapp-form {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 18px;
}
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}
.whatsapp-form label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-weight: 700;
  color: var(--text);
}
.whatsapp-form input,
.whatsapp-form select {
  width: 100%;
  min-height: 50px;
  border-radius: 12px;
  border: 1px solid #cbd5e1;
  background: #fff;
  padding: 0 14px;
}
.whatsapp-form input:focus,
.whatsapp-form select:focus {
  outline: 2px solid #bae6fd;
  border-color: var(--accent);
}

.placeholder-sol,
.placeholder-dark,
.placeholder-light {
  display: grid;
  place-items: center;
  padding: 20px;
}
.placeholder-sol {
  background: linear-gradient(135deg, #111827, #1e293b);
}
.placeholder-dark {
  background: linear-gradient(135deg, #172554, #0f172a);
}
.placeholder-light {
  background: linear-gradient(135deg, #f8fafc, #dbeafe);
}
.no-photo .product-media img {
  width: min(220px, 65%);
  height: auto;
  object-fit: contain;
}
.reserve-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 24px;
  background: #f8fafc;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.steps-grid article,
.aside-card,
.faq-list details,
.cta-box {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
}
.steps-grid article {
  padding: 22px;
}
.steps-grid strong {
  width: 44px;
  height: 44px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  background: #e0f2fe;
  color: #075985;
  font-size: 1.15rem;
}
.steps-grid h3 { margin: 14px 0 8px; }
.steps-grid p { margin: 0; color: var(--muted); }

.about-grid,
.seo-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 22px;
  align-items: start;
}
.about-copy,
.about-side {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 24px;
}
.about-copy p,
.seo-grid article p { color: var(--muted); }
.about-actions { margin-top: 20px; }
.about-side {
  display: grid;
  gap: 16px;
  place-items: center;
  text-align: center;
}
.side-logo {
  max-width: 200px;
  height: auto;
}
.sol-logo { max-width: 180px; }
.aside-card {
  padding: 18px;
  text-align: left;
}
.aside-card h3 { margin-top: 0; }
.aside-card p { margin-bottom: 0; color: var(--muted); }

.seo-grid article {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow);
  padding: 24px;
}
.seo-grid article h2 {
  margin: 0 0 10px;
  font-size: 1.5rem;
}

.faq-list {
  display: grid;
  gap: 14px;
}
.faq-list details { padding: 18px 20px; }
.faq-list summary {
  cursor: pointer;
  font-weight: 800;
}
.faq-list p { color: var(--muted); margin-bottom: 0; }

.cta-box {
  padding: 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.cta-box h2 {
  margin: 0 0 8px;
  font-size: clamp(1.7rem, 3vw, 2.6rem);
}
.cta-box p { margin: 0; color: var(--muted); }

.site-footer {
  padding: 28px 0 40px;
  background: var(--bg);
  color: #d8e2ee;
  margin-top: 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.site-footer h3 {
  margin: 0 0 12px;
  color: #fff;
}
.site-footer p,
.site-footer li,
.site-footer a { color: rgba(255,255,255,0.78); }
.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

@media (max-width: 1080px) {
  .site-nav { display: none; }
  .product-grid,
  .authority-grid,
  .steps-grid,
  .footer-grid,
  .about-grid,
  .seo-grid,
  .two-columns {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .header-inner {
    min-height: 74px;
    gap: 10px;
  }
  .brand img { width: 58px; }
  .brand-copy span { display: none; }
  .header-cta { padding: 0 14px; min-height: 42px; font-size: 0.92rem; }
  .hero { min-height: auto; }
  .hero-content { padding: 96px 0 56px; }
  .hero p { font-size: 1rem; }
  .product-body h3 { font-size: 1.7rem; }
  .form-grid { grid-template-columns: 1fr; }
  .cta-box { flex-direction: column; align-items: flex-start; }
}


.guide {
  padding: 36px 0 20px;
}
.guide-intro-grid,
.guide-figure-row,
.guide-range-grid,
.guide-impact-grid,
.guide-final-grid {
  display: grid;
  gap: 18px;
  margin-bottom: 18px;
}
.guide-intro-grid,
.guide-final-grid {
  grid-template-columns: 1.15fr 0.85fr;
}
.guide-figure-row,
.guide-range-grid,
.guide-impact-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.guide-figure-row {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.guide-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
  padding: 22px;
}
.guide-card h3 {
  margin: 0 0 10px;
  font-size: 1.3rem;
  line-height: 1.15;
}
.guide-card p {
  margin: 0 0 14px;
  color: var(--muted);
}
.guide-card figure,
.guide-card figcaption { margin: 0; }
.guide-card figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.92rem;
}
.guide-card img {
  width: 100%;
  height: auto;
  border-radius: 16px;
  border: 1px solid var(--line);
}
.guide-copy strong { color: var(--text); }
.formula-box {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 16px;
  margin: 4px 0 16px;
  border-radius: 999px;
  background: #eff6ff;
  color: #0c4a6e;
  border: 1px solid #bfdbfe;
  font-weight: 800;
}
.guide-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.guide-chip-row a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  background: #f8fafc;
  border: 1px solid var(--line);
  color: var(--text);
  font-weight: 700;
}
.guide-chip-row a:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.range-badge {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 12px;
  border-radius: 999px;
  background: #dcfce7;
  color: #166534;
  font-size: 0.84rem;
  font-weight: 800;
  margin-bottom: 12px;
}
.range-badge.balanced {
  background: #e0f2fe;
  color: #075985;
}
.range-badge.high {
  background: #ffedd5;
  color: #9a3412;
}
.range-card ul,
.impact-card ul,
.check-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}
.range-card li,
.impact-card li,
.check-list li {
  margin-bottom: 8px;
}
.guide-cta-box {
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: linear-gradient(135deg, #0f172a, #111827);
  color: #fff;
}
.guide-cta-box p { color: rgba(255,255,255,0.82); }
.guide-cta-box .btn { align-self: flex-start; }
#max-light .product-media img,
#revolution .product-media img,
#comfort-evolution-2 .product-media img,
.reserve-image img {
  object-fit: contain;
  padding: 18px;
  background: #f8fafc;
}
#max-light .product-media,
#revolution .product-media,
#comfort-evolution-2 .product-media {
  background: #eef2f7;
}
@media (max-width: 1080px) {
  .guide-intro-grid,
  .guide-figure-row,
  .guide-range-grid,
  .guide-impact-grid,
  .guide-final-grid {
    grid-template-columns: 1fr;
  }
}