/* ===================== Design Tokens ===================== */
:root, [data-theme="light"] {
  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(2.75rem, 0.5rem + 6.5vw, 7rem);

  /* Spacing */
  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem;
  --space-4: 1rem; --space-5: 1.25rem; --space-6: 1.5rem;
  --space-8: 2rem; --space-10: 2.5rem; --space-12: 3rem;
  --space-16: 4rem; --space-20: 5rem; --space-24: 6rem; --space-32: 8rem;

  /* Fonts */
  --font-display: 'Fraunces', 'Georgia', serif;
  --font-body: 'General Sans', 'Inter', sans-serif;

  /* Colors — warm birch / eco-industrial palette (OKLCH) */
  --color-bg: oklch(97.5% 0.012 85);
  --color-surface: oklch(100% 0 0);
  --color-surface-2: oklch(94% 0.018 80);
  --color-text: oklch(20% 0.02 60);
  --color-text-muted: oklch(42% 0.02 60);
  --color-border: oklch(85% 0.02 75 / 0.6);

  --color-accent: oklch(45% 0.11 45);       /* warm birch amber-brown */
  --color-accent-strong: oklch(32% 0.09 40);
  --color-accent-soft: oklch(90% 0.045 60);

  --color-ink: oklch(18% 0.015 55);         /* near-black warm charcoal for dark panels */
  --color-steel: oklch(35% 0.01 250);       /* cool steel grey accent, used sparingly */

  --shadow-sm: 0 1px 2px oklch(20% 0.02 60 / 0.06);
  --shadow-md: 0 8px 24px oklch(20% 0.02 60 / 0.10);
  --shadow-lg: 0 24px 64px oklch(20% 0.02 60 / 0.16);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
  --color-bg: oklch(16% 0.014 55);
  --color-surface: oklch(20% 0.016 55);
  --color-surface-2: oklch(24% 0.018 55);
  --color-text: oklch(94% 0.01 70);
  --color-text-muted: oklch(72% 0.015 65);
  --color-border: oklch(40% 0.02 60 / 0.4);

  --color-accent: oklch(72% 0.11 60);
  --color-accent-strong: oklch(80% 0.1 60);
  --color-accent-soft: oklch(30% 0.05 55);

  --color-ink: oklch(10% 0.01 55);
  --color-steel: oklch(70% 0.01 250);

  --shadow-sm: 0 1px 2px oklch(0% 0 0 / 0.3);
  --shadow-md: 0 8px 24px oklch(0% 0 0 / 0.4);
  --shadow-lg: 0 24px 64px oklch(0% 0 0 / 0.55);
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}

.container {
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: clamp(var(--space-5), 4vw, var(--space-10));
}

section { padding-block: clamp(var(--space-16), 9vw, var(--space-32)); }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; letter-spacing: -0.01em; line-height: 1.08; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.eyebrow::before {
  content: "";
  width: 24px; height: 1.5px;
  background: var(--color-accent);
}

.lede { color: var(--color-text-muted); font-size: var(--text-lg); max-width: 60ch; }

/* ===================== Header ===================== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: oklch(from var(--color-bg) l c h / 0.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.header--hidden { transform: translateY(-100%); }
.header--scrolled { box-shadow: var(--shadow-sm); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: var(--space-4);
}

.brand { display: flex; align-items: center; gap: var(--space-3); font-family: var(--font-display); font-weight: 600; font-size: var(--text-lg); }
.brand svg { width: 52px; height: 20px; color: var(--color-accent); flex-shrink: 0; }
.brand-sub { display: block; font-family: var(--font-body); font-size: var(--text-xs); font-weight: 500; color: var(--color-text-muted); letter-spacing: 0.04em; white-space: nowrap; }

.nav { display: flex; align-items: center; gap: var(--space-6); }
.nav-links { display: flex; gap: var(--space-5); list-style: none; }
.nav-links a {
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color 0.2s var(--ease);
  position: relative;
}
.nav-links a:hover, .nav-links a:focus-visible { color: var(--color-text); }
.nav-links a::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: -6px;
  height: 2px; background: var(--color-accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.25s var(--ease);
}
.nav-links a:hover::after { transform: scaleX(1); }

.header-actions { display: flex; align-items: center; gap: var(--space-4); flex-shrink: 0; }
.language-switch {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  flex-shrink: 0;
}
.language-switch a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding-inline: var(--space-1);
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  font-weight: 600;
  text-decoration: none;
  border-radius: calc(var(--radius-sm) - var(--space-1));
}
.language-switch a[aria-current="page"] { background: var(--color-accent); color: var(--color-surface); }
.language-switch a:not([aria-current]):hover { background: var(--color-accent-soft); color: var(--color-text); }
[data-theme="dark"] .language-switch a[aria-current="page"] { color: var(--color-ink); }
.language-switch a:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  transition: background 0.2s var(--ease), transform 0.2s var(--ease);
}
.theme-toggle:hover { transform: translateY(-1px); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

.nav-toggle { display: none; }

.mobile-menu { display: none; }

/* ===================== Buttons ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease);
  white-space: nowrap;
}
.btn-primary { background: var(--color-accent); color: var(--color-bg); box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--color-accent-strong); box-shadow: var(--shadow-md); transform: translateY(-1px); }
.btn-secondary { background: transparent; color: var(--color-text); border-color: var(--color-border); }
.btn-secondary:hover { border-color: var(--color-accent); color: var(--color-accent); }
.btn-lg { padding: var(--space-4) var(--space-8); font-size: var(--text-base); }

/* ===================== Hero ===================== */
.hero {
  position: relative;
  padding-top: clamp(var(--space-16), 8vw, var(--space-24));
  padding-bottom: 0;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
}
.hero-copy .lede { max-width: 62ch; }
.hero-stat strong { white-space: nowrap; }
.hero-copy h1 { font-size: clamp(1.7rem, -0.3rem + 3.6vw, 3.35rem); line-height: 1.1; white-space: nowrap; margin-block: var(--space-5) var(--space-6); }
@media (max-width: 900px) { .hero-copy h1 { white-space: normal; font-size: clamp(2rem, 1rem + 5vw, 3rem); } }
.hero-copy h1 em { font-style: normal; color: var(--color-accent); }
.hero-actions { display: flex; gap: var(--space-4); flex-wrap: wrap; margin-top: var(--space-8); }

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}
.hero-stat strong { display: block; font-family: var(--font-display); font-size: var(--text-xl); color: var(--color-accent); }
.hero-stat span { font-size: var(--text-xs); color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.06em; }
.hero-stat-price { max-width: 24rem; }
.hero-stat-price strong { white-space: normal; }
.hero-stat-price span { display: block; }

.hero-media { position: relative; }
.hero-media img {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}
.hero-media-tag {
  position: absolute;
  bottom: var(--space-6);
  left: var(--space-6);
  right: var(--space-6);
  background: oklch(from var(--color-bg) l c h / 0.9);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  box-shadow: var(--shadow-md);
}
.hero-media-tag svg { width: 22px; height: 22px; color: var(--color-accent); flex-shrink: 0; }
.hero-media-tag p { font-size: var(--text-xs); color: var(--color-text-muted); }
.hero-media-tag strong { display: block; font-size: var(--text-sm); }

.hero-full-image {
  position: relative;
  margin-top: clamp(var(--space-10), 5vw, var(--space-16));
  width: 100%;
}
.hero-full-image img {
  width: 100%;
  height: clamp(280px, 40vw, 560px);
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}
.hero-full-image .hero-media-tag { max-width: 420px; right: auto; }

/* ===================== Marquee strip ===================== */
.strip {
  background: var(--color-ink);
  color: oklch(92% 0.01 70);
  padding-block: var(--space-5);
  overflow: hidden;
}
.strip-track {
  display: flex;
  gap: var(--space-12);
  white-space: nowrap;
  animation: marquee 32s linear infinite;
  width: max-content;
}
.strip-track span { font-size: var(--text-sm); font-weight: 500; letter-spacing: 0.04em; opacity: 0.85; }
.strip-track span::after { content: "•"; margin-left: var(--space-12); color: var(--color-accent); }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ===================== Section headers ===================== */
.section-head { max-width: 720px; margin-bottom: clamp(var(--space-10), 6vw, var(--space-16)); }
.section-head h2 { font-size: var(--text-2xl); margin-top: var(--space-4); }
.section-head.center { margin-inline: auto; text-align: center; }

/* ===================== Technology cards ===================== */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}
.tech-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-8), 3vw, var(--space-10));
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.tech-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.tech-icon {
  width: 56px; height: 56px;
  border-radius: var(--radius-md);
  background: var(--color-accent-soft);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-6);
}
.tech-icon svg { width: 28px; height: 28px; color: var(--color-accent); }
.tech-card h3 { font-size: var(--text-lg); margin-bottom: var(--space-3); }
.tech-card p { color: var(--color-text-muted); }
.tech-card ul { margin-top: var(--space-4); display: flex; flex-direction: column; gap: var(--space-2); }
.tech-card li { display: flex; gap: var(--space-2); font-size: var(--text-sm); color: var(--color-text-muted); }
.tech-card li::before { content: "—"; color: var(--color-accent); flex-shrink: 0; }

/* ===================== Detail split ===================== */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-10), 6vw, var(--space-20));
  align-items: center;
}
.split img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.split.reverse { direction: rtl; }
.split.reverse > * { direction: ltr; }
.split-list { margin-top: var(--space-8); display: flex; flex-direction: column; gap: var(--space-5); }
.split-list-item { display: flex; gap: var(--space-4); }
.split-list-item .num {
  flex-shrink: 0; width: 36px; height: 36px; border-radius: 999px;
  background: var(--color-accent-soft); color: var(--color-accent-strong);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: var(--text-sm);
}
.split-list-item h4 { font-size: var(--text-base); margin-bottom: var(--space-1); }
.split-list-item p { color: var(--color-text-muted); font-size: var(--text-sm); }

/* ===================== Standards / product lines ===================== */
.standards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.standard-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 3/4;
  box-shadow: var(--shadow-md);
}
.standard-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s var(--ease); }
.standard-card:hover img { transform: scale(1.06); }
.standard-card::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, oklch(15% 0.02 55 / 0) 40%, oklch(10% 0.02 55 / 0.88) 100%);
}
.standard-card-copy {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: var(--space-6);
  z-index: 2;
  color: oklch(97% 0.01 70);
}
.standard-tag {
  display: inline-block;
  font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  background: oklch(97% 0.01 70 / 0.16);
  padding: var(--space-1) var(--space-3);
  border-radius: 999px;
  margin-bottom: var(--space-3);
  backdrop-filter: blur(4px);
}
.standard-card-copy h3 { font-size: var(--text-lg); color: oklch(98% 0.005 70); }
.standard-card-copy p { font-size: var(--text-sm); color: oklch(88% 0.01 70); margin-top: var(--space-2); }

/* ===================== Comparison table ===================== */
.table-wrap { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--color-border); }
table { width: 100%; border-collapse: collapse; min-width: 640px; background: var(--color-surface); }
th, td { text-align: left; padding: var(--space-4) var(--space-5); font-size: var(--text-sm); border-bottom: 1px solid var(--color-border); }
th { font-family: var(--font-display); font-weight: 600; color: var(--color-text-muted); font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.05em; background: var(--color-surface-2); }
tr:last-child td { border-bottom: none; }
tr.highlight td { background: var(--color-accent-soft); font-weight: 600; }
td.num { font-variant-numeric: tabular-nums; }

/* ===================== Process timeline ===================== */
.timeline { display: flex; flex-direction: column; gap: 0; margin-top: var(--space-4); }
.timeline-item {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: var(--space-6);
  padding-block: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}
.timeline-item:last-child { border-bottom: none; }
.timeline-marker {
  width: 44px; height: 44px;
  border-radius: 999px;
  background: var(--color-ink);
  color: oklch(95% 0.01 70);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-size: var(--text-sm);
}
.timeline-content h4 { font-size: var(--text-lg); margin-bottom: var(--space-2); }
.timeline-content p { color: var(--color-text-muted); }

/* ===================== Application gallery ===================== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 220px;
  gap: var(--space-4);
}
.gallery-item { position: relative; border-radius: var(--radius-md); overflow: hidden; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s var(--ease); }
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item.span-2 { grid-column: span 2; grid-row: span 2; }
.gallery-item-label {
  position: absolute; left: var(--space-4); bottom: var(--space-4);
  color: white; font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.04em;
  background: oklch(15% 0.02 55 / 0.55);
  padding: var(--space-1) var(--space-3); border-radius: 999px;
  backdrop-filter: blur(4px);
}

/* ===================== Sustainability band ===================== */
.eco-band {
  background: var(--color-ink);
  color: oklch(95% 0.01 70);
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-10), 6vw, var(--space-16));
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}
.eco-band .eyebrow { color: var(--color-accent); }
.eco-band h2 { color: oklch(98% 0.005 70); font-size: var(--text-xl); margin-top: var(--space-3); }
.eco-band p { color: oklch(80% 0.01 70); margin-top: var(--space-4); }
.eco-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
.eco-stat { padding: var(--space-5); border: 1px solid oklch(50% 0.02 60 / 0.3); border-radius: var(--radius-md); }
.eco-stat strong { display: block; font-family: var(--font-display); font-size: var(--text-xl); color: var(--color-accent); }
.eco-stat span { font-size: var(--text-xs); color: oklch(75% 0.01 70); }

/* ===================== FAQ ===================== */
.faq-list { display: flex; flex-direction: column; gap: var(--space-3); max-width: 820px; margin-inline: auto; }
.faq-item { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); overflow: hidden; }
.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  background: none; border: none; text-align: left;
  font-family: var(--font-body); font-weight: 600; font-size: var(--text-base); color: var(--color-text);
}
.faq-question svg { width: 20px; height: 20px; color: var(--color-accent); flex-shrink: 0; transition: transform 0.3s var(--ease); }
.faq-item[open] .faq-question svg { transform: rotate(45deg); }
.faq-answer { padding: 0 var(--space-6) var(--space-6); color: var(--color-text-muted); font-size: var(--text-sm); }

/* ===================== CTA ===================== */
.cta {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-strong) 100%);
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-12), 7vw, var(--space-20));
  text-align: center;
  color: oklch(99% 0.005 90);
}
.cta h2 { color: inherit; font-size: var(--text-2xl); }
.cta p { color: oklch(96% 0.01 80 / 0.9); max-width: 56ch; margin-inline: auto; margin-top: var(--space-4); }
.cta .hero-actions { justify-content: center; margin-top: var(--space-8); }
.cta .btn-primary { background: oklch(99% 0.005 90); color: var(--color-accent-strong); }
.cta .btn-primary:hover { background: oklch(94% 0.01 80); }
.cta .btn-secondary { border-color: oklch(99% 0.005 90 / 0.5); color: oklch(99% 0.005 90); }
.cta .btn-secondary:hover { border-color: oklch(99% 0.005 90); background: oklch(99% 0.005 90 / 0.1); }

/* ===================== Contact form ===================== */
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(var(--space-10), 6vw, var(--space-20)); }
.contact-info-item { display: flex; gap: var(--space-4); margin-bottom: var(--space-6); }
.contact-info-item svg { width: 22px; height: 22px; color: var(--color-accent); flex-shrink: 0; }
.contact-info-item h4 { font-size: var(--text-sm); margin-bottom: var(--space-1); }
.contact-info-item p, .contact-info-item a { font-size: var(--text-sm); color: var(--color-text-muted); text-decoration: none; }

.form-field { margin-bottom: var(--space-5); }
.form-field label { display: block; font-size: var(--text-sm); font-weight: 600; margin-bottom: var(--space-2); }
.form-field input, .form-field textarea, .form-field select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: var(--text-sm);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.form-field input:focus, .form-field textarea:focus, .form-field select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}
.form-field textarea { resize: vertical; min-height: 110px; }
.form-note { font-size: var(--text-xs); color: var(--color-text-muted); margin-top: var(--space-3); }
.form-honeypot { display: none; }
.form-success, .form-error {
  display: none;
  padding: var(--space-4) var(--space-5);
  background: var(--color-accent-soft);
  border-radius: var(--radius-md);
  color: var(--color-accent-strong);
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-5);
}
.form-success.visible { display: block; }
.form-error {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  overflow-wrap: anywhere;
}
.form-error.visible { display: block; }
.form-error p + p { margin-top: var(--space-3); font-weight: 400; }
.form-error a, .form-note a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }
#contactForm button:disabled { cursor: wait; opacity: 0.65; }
#contactForm [aria-busy="true"] { cursor: wait; }

/* ===================== Footer ===================== */
.footer { background: var(--color-ink); color: oklch(80% 0.015 65); padding-block: var(--space-16) var(--space-8); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--space-10); }
.footer-brand { display: flex; align-items: center; gap: var(--space-3); font-family: var(--font-display); font-weight: 600; font-size: var(--text-lg); color: oklch(97% 0.01 70); margin-bottom: var(--space-4); }
.footer-brand svg { width: 46px; height: 18px; color: var(--color-accent); }
.footer p { font-size: var(--text-sm); color: oklch(70% 0.015 65); max-width: 40ch; }
.footer h5 { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.08em; color: oklch(60% 0.01 65); margin-bottom: var(--space-4); }
.footer ul { list-style: none; display: flex; flex-direction: column; gap: var(--space-3); }
.footer a { text-decoration: none; font-size: var(--text-sm); color: oklch(80% 0.015 65); transition: color 0.2s var(--ease); }
.footer a:hover { color: var(--color-accent); }
.footer-bottom {
  margin-top: var(--space-16);
  padding-top: var(--space-8);
  border-top: 1px solid oklch(40% 0.02 60 / 0.3);
  display: flex; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap;
  font-size: var(--text-xs); color: oklch(60% 0.01 65);
}

/* ===================== Reveal animation ===================== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ===================== Responsive ===================== */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-media { order: -1; }
  .tech-grid { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
  .split.reverse { direction: ltr; }
  .standards-grid { grid-template-columns: 1fr; }
  .eco-band { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 200px; }
  .gallery-item.span-2 { grid-column: span 2; grid-row: span 1; }
}

@media (max-width: 1200px) {
  .header-inner { gap: var(--space-2); }
  .header-inner > .nav { display: none; }
  .header-actions { gap: var(--space-2); }
  .nav-links, .header-actions .btn { display: none; }
  .nav-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 44px; height: 44px; border-radius: var(--radius-sm);
    border: 1px solid var(--color-border); background: var(--color-surface); color: var(--color-text);
  }
  .nav-toggle svg { width: 20px; height: 20px; }
  .mobile-menu {
    display: none;
    flex-direction: column;
    gap: var(--space-1);
    padding: var(--space-4) 0 var(--space-6);
    border-top: 1px solid var(--color-border);
  }
  .mobile-menu.open { display: flex; }
  .mobile-menu a {
    padding: var(--space-3) var(--space-2);
    text-decoration: none; color: var(--color-text); font-weight: 500; font-size: var(--text-base);
  }
  .mobile-menu .btn { margin-top: var(--space-3); justify-content: center; }
}

@media (max-width: 720px) {
  .hero-stats { flex-wrap: wrap; gap: var(--space-6); }
  .footer-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .header-inner { flex-wrap: wrap; padding-block: var(--space-3); }
  .brand { font-size: var(--text-base); gap: var(--space-2); }
  .brand svg { width: 32px; }
  .brand-sub { font-size: 0.75rem; letter-spacing: 0; }
  .header-actions { gap: var(--space-1); margin-left: auto; }
  .language-switch { padding: 0; }
  .language-switch a[aria-current="page"] { display: none; }
}

@media (max-width: 360px) {
  .eco-band { padding: var(--space-6); }
  .eco-stats { grid-template-columns: 1fr; }
}