/* Termotronic - shared stylesheet */

:root {
  --brand-600: #0369a1;
  --brand-700: #075985;
  --brand-500: #0ea5e9;
  --brand-50: #f0f9ff;
  --ink: #1e293b;
  --ink-light: #475569;
  --border: #e2e8f0;
  --bg-alt: #f8fafc;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", Roboto, -apple-system, BlinkMacSystemFont, Arial, sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }

img { max-width: 100%; display: block; }

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header / Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  max-width: 1160px;
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--brand-700);
}

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

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--ink-light);
  padding: 8px 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--brand-700);
  border-color: var(--brand-500);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.6rem;
  color: var(--brand-700);
  cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
}

.btn-primary {
  background: var(--brand-600);
  color: #fff;
  box-shadow: 0 8px 20px rgba(3, 105, 161, 0.25);
}

.btn-primary:hover { background: var(--brand-700); transform: translateY(-1px); }

.btn-outline {
  background: #fff;
  color: var(--brand-700);
  border: 2px solid var(--brand-500);
}

.btn-outline:hover { background: var(--brand-50); }

/* Hero */
.hero {
  padding: 64px 0;
  background: linear-gradient(180deg, var(--brand-50) 0%, #fff 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  background: var(--brand-100, #e0f2fe);
  color: var(--brand-700);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1.15;
  margin: 0 0 20px;
  color: var(--ink);
}

.hero p {
  font-size: 1.05rem;
  color: var(--ink-light);
  margin-bottom: 28px;
  max-width: 46ch;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.badge-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1px solid var(--border);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-light);
  box-shadow: var(--shadow);
}

.hero-media img,
.hero-media video {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* Section titles */
.section {
  padding: 64px 0;
}

.section-alt { background: var(--bg-alt); }

.section-title {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.section-title h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  margin: 0 0 12px;
}

.section-title p {
  color: var(--ink-light);
  margin: 0;
}

/* Feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 900px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .feature-grid { grid-template-columns: 1fr; }
}

.feature-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--brand-50);
  color: var(--brand-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

.feature-card p {
  color: var(--ink-light);
  margin: 0;
  font-size: 0.95rem;
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  text-align: center;
}

.stat h3 {
  font-size: 2.4rem;
  color: var(--brand-600);
  margin: 0 0 6px;
}

.stat p {
  margin: 0;
  color: var(--ink-light);
  font-weight: 600;
}

/* Product cards */
.product-card {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  margin-bottom: 32px;
}

.product-card.reverse .product-media { order: 2; }

.product-media img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.product-card h3 {
  font-size: 1.6rem;
  margin: 0 0 6px;
  color: var(--brand-700);
}

.product-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--brand-600);
  background: var(--brand-50);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.product-card p { color: var(--ink-light); }

.product-list {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  display: grid;
  gap: 10px;
}

.product-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--ink-light);
  font-size: 0.95rem;
}

.product-list li::before {
  content: "✓";
  color: var(--brand-600);
  font-weight: 700;
}

/* Content blocks (about / ecological / information) */
.content-block {
  max-width: 780px;
  margin: 0 auto 40px;
}

.content-block h2 {
  font-size: 1.5rem;
  margin-bottom: 12px;
  color: var(--brand-700);
}

.content-block p { color: var(--ink-light); margin-bottom: 16px; }

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.numbered-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 28px;
}

.numbered-list li {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 16px;
}

.num-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--brand-600);
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.numbered-list h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

.numbered-list p { margin: 0; color: var(--ink-light); }

.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 24px;
}

.compare-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.compare-card h4 {
  color: var(--brand-700);
  margin: 0 0 12px;
}

.compare-card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--ink-light);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.value-card {
  background: var(--bg-alt);
  border-radius: var(--radius);
  padding: 22px;
}

.value-card h4 {
  color: var(--brand-700);
  margin: 0 0 8px;
}

.value-card p { margin: 0; color: var(--ink-light); font-size: 0.92rem; }

/* CTA band */
.cta-band {
  background: var(--brand-700);
  color: #fff;
  text-align: center;
  padding: 56px 24px;
  border-radius: var(--radius);
  margin: 0 24px;
}

.cta-band h2 { margin: 0 0 12px; }
.cta-band p { color: rgba(255,255,255,0.85); margin: 0 0 24px; }
.cta-band .btn-primary { background: #fff; color: var(--brand-700); box-shadow: none; }
.cta-band .btn-primary:hover { background: var(--brand-50); }

/* Footer */
.site-footer {
  background: #0f172a;
  color: #cbd5e1;
  padding: 48px 0 24px;
  margin-top: 40px;
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand { display: flex; align-items: center; gap: 10px; }
.footer-brand img { height: 36px; filter: brightness(0) invert(1); }
.footer-brand span { font-weight: 700; color: #fff; }

.footer-nav { display: flex; gap: 22px; flex-wrap: wrap; list-style: none; margin: 0; padding: 0; }
.footer-nav a { color: #cbd5e1; font-size: 0.9rem; }
.footer-nav a:hover { color: #fff; }

.footer-contact a { color: #7dd3fc; font-weight: 600; }

.footer-bottom {
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.82rem;
  color: #94a3b8;
}

/* Page hero (interior pages) */
.page-hero {
  padding: 48px 0 32px;
  text-align: center;
  background: linear-gradient(180deg, var(--brand-50) 0%, #fff 100%);
}

.page-hero h1 { font-size: clamp(1.8rem, 3.5vw, 2.4rem); margin: 0 0 12px; }
.page-hero p { color: var(--ink-light); max-width: 620px; margin: 0 auto; }

/* Responsive */
@media (max-width: 860px) {
  .hero-grid,
  .two-col,
  .product-card,
  .compare-grid {
    grid-template-columns: 1fr;
  }
  .product-card.reverse .product-media { order: 0; }
  .stats { grid-template-columns: 1fr; }

  .nav-toggle { display: block; }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 16px 24px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    display: none;
  }

  .nav-links.open { display: flex; }
  .nav-links a { padding: 10px 0; }
}