/* ===== Header / Nav ===== */
site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: block;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding-block: var(--space-4);
  transition: background var(--transition-base), backdrop-filter var(--transition-base), box-shadow var(--transition-base), padding var(--transition-base);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

.site-header.scrolled {
  background: var(--glass-bg-strong);
  backdrop-filter: blur(var(--glass-blur)) saturate(160%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(160%);
  box-shadow: var(--glass-shadow);
  padding-block: var(--space-3);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--navy-900);
}

body[data-hero="dark"] .site-header:not(.scrolled) .brand,
body[data-hero="dark"] .site-header:not(.scrolled) .nav-links a,
body[data-hero="dark"] .site-header:not(.scrolled) .nav-toggle {
  color: #fff;
}

.brand img {
  height: 40px;
  width: 40px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--navy-900);
  padding-block: var(--space-1);
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  border-color: var(--green-600);
}

.nav-links a.btn-primary,
.nav-links a.btn-primary:hover {
  color: #fff;
  border-bottom-color: transparent;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--navy-900);
}

@media (max-width: 860px) {
  .nav-toggle { display: block; }

  .nav-links {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(320px, 80vw);
    height: 100vh;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: var(--space-5);
    padding: var(--space-6);
    background: var(--surface);
    box-shadow: -12px 0 40px rgba(1, 18, 70, 0.18);
    transform: translateX(100%);
    transition: transform var(--transition-base);
  }

  .nav-links.open { transform: translateX(0); }

  .nav-links a { font-size: 1.1rem; }
  .nav-links a:not(.btn-primary) { color: var(--navy-900) !important; }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 88vh;
  margin-top: calc(-1 * var(--header-height));
  padding-top: var(--header-height);
  display: flex;
  align-items: center;
  color: #fff;
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.45) 0%, rgba(0, 0, 0, 0.15) 120px, rgba(0, 0, 0, 0) 260px);
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 1;
  max-width: 100%;
  padding-inline: 0;
  background: linear-gradient(135deg, rgba(4, 92, 148, 0.55), rgba(76, 201, 69, 0.35));
}

.hero-panel {
  max-width: 640px;
  padding: var(--space-7);
}

.hero-panel .eyebrow { color: #cfe9ff; }
.hero-panel h1 { color: #fff; }
.hero-panel p { color: rgba(255, 255, 255, 0.86); font-size: 1.1rem; }
.hero-actions { display: flex; gap: var(--space-4); flex-wrap: wrap; margin-top: var(--space-5); }

/* ===== Keyword ticker ===== */
.ticker {
  overflow: hidden;
  border-top: 2px solid rgba(255, 255, 255, 0.45);
  border-bottom: 2px solid rgba(255, 255, 255, 0.45);
  padding-block: var(--space-6);
  position: relative;
  z-index: 1;
  background: linear-gradient(135deg, rgba(4, 92, 148, 0.4), rgba(76, 201, 69, 0.24));
  backdrop-filter: blur(var(--glass-blur)) saturate(160%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(160%);
}

.ticker-track {
  display: flex;
  width: max-content;
  gap: var(--space-9);
  animation: scroll-left 38s linear infinite;
}

.ticker-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.92);
  white-space: nowrap;
}

.ticker-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.32);
  backdrop-filter: blur(10px) saturate(160%);
  -webkit-backdrop-filter: blur(10px) saturate(160%);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
  flex-shrink: 0;
}

.ticker-icon svg {
  width: 30px;
  height: 30px;
}

@keyframes scroll-left {
  to { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .ticker-track { animation: none; }
}

/* ===== Stats band ===== */
.stats-band {
  background: var(--brand-gradient);
  color: #fff;
}

.stats-band .grid { text-align: center; }

.stat-number {
  font-size: clamp(2rem, 3vw, 2.75rem);
  font-weight: 800;
  display: block;
}

.stat-label {
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.82);
}

/* ===== Installations gallery ===== */
.gallery-strip {
  display: flex;
  gap: var(--space-5);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: var(--space-4);
  scrollbar-width: thin;
}

.gallery-strip figure {
  flex: 0 0 min(340px, 82vw);
  scroll-snap-align: start;
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
}

.gallery-strip img {
  height: 240px;
  width: 100%;
  object-fit: cover;
}

.gallery-strip figcaption {
  padding: var(--space-4);
  font-size: 0.9rem;
  color: var(--muted);
}

.gallery-controls {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.gallery-controls button {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
  font-size: 1.1rem;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--navy-900);
  color: rgba(255, 255, 255, 0.78);
  padding-block: var(--space-8) var(--space-6);
}

.site-footer h4 {
  color: #fff;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.site-footer a {
  color: rgba(255, 255, 255, 0.78);
  transition: color var(--transition-fast);
}

.site-footer a:hover { color: #fff; }

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-6);
}

.footer-grid li { margin-bottom: var(--space-2); list-style: none; }
.footer-grid ul { padding: 0; margin: 0; }

.footer-social {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  font-size: 0.85rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}

@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* ===== WhatsApp floating button ===== */
.whatsapp-fab {
  position: fixed;
  right: var(--space-5);
  bottom: var(--space-5);
  z-index: 200;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25d366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 28px rgba(37, 211, 102, 0.45);
  transition: transform var(--transition-fast);
}

.whatsapp-fab:hover { transform: scale(1.08); }

/* ===== Product cards ===== */
.product-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.product-card img {
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-4);
  height: 200px;
  width: 100%;
  object-fit: cover;
  background: var(--bg);
}

.product-card .tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--green-600);
  background: var(--green-100);
  padding: 0.3em 0.8em;
  border-radius: 999px;
  margin-bottom: var(--space-3);
}

.spec-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.spec-list li {
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: 0.95rem;
}

.spec-list li span:first-child { color: var(--muted); }
.spec-list li span:last-child { font-weight: 700; color: var(--navy-900); text-align: right; }

/* ===== CTA band ===== */
.cta-band {
  background: var(--brand-gradient);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  text-align: center;
}

.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255, 255, 255, 0.85); max-width: 560px; margin-inline: auto; }