:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --ink: #15202b;
  --muted: #5b6775;
  --line: #e3e7ee;
  --brand: #0b3d5c;
  --brand-2: #1a6b9a;
  --accent: #c9852f;
  --accent-soft: #f7efe3;
  --ok: #1f7a4c;
  --shadow: 0 10px 30px rgba(21, 32, 43, 0.08);
  --radius: 16px;
  --max: 1120px;
  --font: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand-2); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { width: min(100% - 2rem, var(--max)); margin-inline: auto; }
.skip {
  position: absolute; left: -999px; top: 0; background: #000; color: #fff; padding: .5rem 1rem; z-index: 1000;
}
.skip:focus { left: 1rem; top: 1rem; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: 70px;
}
.logo {
  font-weight: 800; letter-spacing: .08em; font-size: 1.25rem;
  color: var(--brand); text-decoration: none;
}
.logo span { color: var(--accent); }
.nav-toggle {
  display: none; border: 1px solid var(--line); background: #fff;
  border-radius: 10px; padding: .55rem .75rem; font: inherit; cursor: pointer;
}
.nav { display: flex; align-items: center; gap: .25rem; }
.nav > a, .drop > summary {
  display: inline-flex; align-items: center; gap: .35rem;
  padding: .55rem .7rem; border-radius: 10px; color: var(--ink);
  font-weight: 600; font-size: .95rem; text-decoration: none; list-style: none; cursor: pointer;
}
.nav > a:hover, .drop > summary:hover { background: #eef3f7; text-decoration: none; }
.drop { position: relative; }
.drop > summary::-webkit-details-marker { display: none; }
.drop-menu {
  position: absolute; top: calc(100% + .35rem); left: 0; min-width: 230px;
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  box-shadow: var(--shadow); padding: .45rem; display: grid; gap: .15rem;
}
.drop-menu a {
  padding: .65rem .75rem; border-radius: 10px; color: var(--ink); font-weight: 500; text-decoration: none;
}
.drop-menu a:hover { background: #eef3f7; }
.header-cta { display: flex; gap: .5rem; align-items: center; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .45rem;
  padding: .75rem 1.1rem; border-radius: 999px; border: 1px solid transparent;
  font-weight: 700; font-size: .95rem; text-decoration: none; cursor: pointer;
  transition: .15s ease; white-space: nowrap;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: #092f47; }
.btn-secondary { background: #fff; color: var(--brand); border-color: #c9d5e0; }
.btn-secondary:hover { border-color: var(--brand-2); }
.btn-whatsapp { background: #128c7e; color: #fff; }
.btn-whatsapp:hover { background: #0e7367; }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.45); }
.btn-ghost:hover { background: rgba(255,255,255,.1); }

/* Hero */
.hero {
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(26,107,154,.22), transparent 60%),
    linear-gradient(160deg, #0b3d5c 0%, #123f5d 45%, #1b4f6d 100%);
  color: #fff; padding: 4.5rem 0 4rem;
}
.hero h1 {
  font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.15; margin: 0 0 1rem; max-width: 16ch; letter-spacing: -.02em;
}
.hero p { max-width: 42rem; color: rgba(255,255,255,.88); font-size: 1.08rem; margin: 0 0 1.6rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; }

/* Sections */
section { padding: 3.5rem 0; }
.section-head { margin-bottom: 1.6rem; }
.section-head h2 { margin: 0 0 .45rem; font-size: clamp(1.5rem, 2.5vw, 2rem); letter-spacing: -.01em; }
.section-head p { margin: 0; color: var(--muted); max-width: 46rem; }
.eyebrow {
  display: inline-block; margin-bottom: .55rem; color: var(--brand-2);
  font-weight: 700; font-size: .8rem; letter-spacing: .08em; text-transform: uppercase;
}

/* Cards / grids */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: 0 1px 0 rgba(21,32,43,.02);
  display: flex; flex-direction: column; height: 100%;
}
.card:hover { border-color: #c7d5e2; box-shadow: var(--shadow); }
.card-media {
  aspect-ratio: 16/10; background: linear-gradient(135deg, #e8eef4, #d7e3ee);
  display: grid; place-items: center; overflow: hidden;
}
.card-media img { width: 100%; height: 100%; object-fit: cover; }
.card-body { padding: 1.15rem 1.2rem 1.3rem; display: flex; flex-direction: column; gap: .55rem; flex: 1; }
.card-body h3 { margin: 0; font-size: 1.05rem; }
.card-body p { margin: 0; color: var(--muted); font-size: .95rem; flex: 1; }
.meta { color: var(--brand); font-weight: 700; font-size: .82rem; }
.card-actions { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: .4rem; }
.card-actions .btn { padding: .55rem .9rem; font-size: .88rem; }

.feature-tile {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.35rem 1.3rem; min-height: 150px;
}
.feature-tile h3 { margin: 0 0 .45rem; font-size: 1.05rem; }
.feature-tile p { margin: 0; color: var(--muted); }

.panel {
  background: var(--surface); border: 1px solid var(--line); border-radius: calc(var(--radius) + 4px);
  padding: 1.5rem; box-shadow: var(--shadow);
}
.panel-dark {
  background: linear-gradient(135deg, #0b3d5c, #1a6b9a); color: #fff; border: 0;
}
.panel-dark p { color: rgba(255,255,255,.88); }
.cta-bar {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 1rem; padding: 1.5rem 1.6rem; border-radius: var(--radius);
  background: var(--accent-soft); border: 1px solid #edd8b8;
}
.cta-bar h2, .cta-bar p { margin: 0; }
.cta-bar p { color: var(--muted); margin-top: .35rem; }

/* Product page */
.product-hero {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 2rem; align-items: center;
}
.product-visual {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1rem; box-shadow: var(--shadow);
}
.product-visual img { width: 100%; border-radius: 12px; background: #f0f3f7; }
.spec-list {
  list-style: none; padding: 0; margin: 1rem 0 0; display: grid; gap: .55rem;
}
.spec-list li {
  display: grid; grid-template-columns: 10px 1fr; gap: .7rem; align-items: start;
  color: var(--muted);
}
.spec-list li::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); margin-top: .45rem;
}
.placeholder {
  width: 100%; aspect-ratio: 16/10; border-radius: 12px;
  background:
    linear-gradient(135deg, rgba(11,61,92,.08), rgba(201,133,47,.12)),
    repeating-linear-gradient(45deg, transparent, transparent 12px, rgba(11,61,92,.03) 12px, rgba(11,61,92,.03) 24px);
  display: grid; place-items: center; color: var(--brand); font-weight: 700; letter-spacing: .06em;
}

/* Forms */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-grid .full { grid-column: 1 / -1; }
label { display: grid; gap: .35rem; font-weight: 600; font-size: .92rem; }
input, select, textarea {
  width: 100%; border: 1px solid #cfd8e3; border-radius: 12px; padding: .75rem .85rem;
  font: inherit; background: #fff; color: var(--ink);
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid rgba(26,107,154,.25); border-color: var(--brand-2);
}
.form-note { color: var(--muted); font-size: .9rem; }
.form-success {
  display: none; margin-top: 1rem; padding: 1rem 1.1rem; border-radius: 12px;
  background: #e8f6ee; color: var(--ok); border: 1px solid #bfe5cd; font-weight: 600;
}
.form-success.show { display: block; }
.contact-aside { display: grid; gap: 1rem; }
.contact-item {
  background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 1.1rem 1.2rem;
}
.contact-item strong { display: block; margin-bottom: .25rem; }

/* Footer */
.site-footer {
  margin-top: 2rem; background: #0b2435; color: rgba(255,255,255,.82); padding: 2.5rem 0 1.5rem;
}
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 1.5rem; margin-bottom: 2rem;
}
.site-footer a { color: rgba(255,255,255,.88); }
.site-footer h4 { margin: 0 0 .8rem; color: #fff; font-size: .95rem; letter-spacing: .04em; text-transform: uppercase; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .45rem; }
.footer-brand { font-weight: 800; letter-spacing: .08em; color: #fff; font-size: 1.15rem; margin-bottom: .5rem; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12); padding-top: 1rem;
  display: flex; flex-wrap: wrap; gap: .75rem; justify-content: space-between; font-size: .9rem;
}

.page-hero { padding: 2.8rem 0 1.5rem; }
.page-hero h1 { margin: 0 0 .6rem; font-size: clamp(1.8rem, 3vw, 2.6rem); letter-spacing: -.02em; }
.page-hero p { margin: 0; color: var(--muted); max-width: 46rem; font-size: 1.05rem; }
.breadcrumbs { font-size: .88rem; color: var(--muted); margin-bottom: .9rem; }
.breadcrumbs a { color: var(--brand-2); }

@media (max-width: 960px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .product-hero { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 780px) {
  .nav-toggle { display: inline-flex; }
  .nav, .header-cta { display: none; }
  .site-header.open .nav {
    display: grid; position: absolute; left: 0; right: 0; top: 70px;
    background: #fff; border-bottom: 1px solid var(--line); padding: .75rem 1rem 1rem; gap: .25rem;
  }
  .site-header.open .header-cta {
    display: flex; position: absolute; left: 0; right: 0; top: auto;
    padding: 0 1rem 1rem; background: #fff; border-bottom: 1px solid var(--line);
  }
  .drop-menu { position: static; box-shadow: none; border: 0; padding: .15rem 0 .15rem .75rem; }
  .grid-2, .grid-3, .grid-4, .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { padding: 3.2rem 0 2.8rem; }
}