/* =========================================
   KABLOLINE MMC — Global Styles
   Palatino Linotype + Navy/Copper Brand
   Light / Dark Mode Support
   ========================================= */

:root {
  /* Brand palette */
  --navy: #1B2A44;
  --navy-deep: #0F1A2E;
  --navy-ink: #0A1220;
  --steel: #8A94A3;
  --steel-light: #C9CFD8;
  --copper: #B87333;
  --copper-light: #D89566;

  /* Light theme tokens */
  --bg: #F5F6F8;
  --bg-alt: #FFFFFF;
  --bg-elevated: #FFFFFF;
  --surface: #FFFFFF;
  --text: #1B2A44;
  --text-muted: #4A5568;
  --text-subtle: #6B7280;
  --border: rgba(27, 42, 68, 0.12);
  --border-strong: rgba(27, 42, 68, 0.2);
  --shadow: 0 1px 3px rgba(15, 26, 46, 0.06), 0 4px 12px rgba(15, 26, 46, 0.04);
  --shadow-lg: 0 4px 16px rgba(15, 26, 46, 0.08), 0 12px 40px rgba(15, 26, 46, 0.08);

  /* Nav */
  --nav-bg: rgba(245, 246, 248, 0.88);
  --nav-border: rgba(27, 42, 68, 0.12);

  /* Dark sections (always dark regardless of theme) */
  --dark-bg: #0F1A2E;
  --dark-bg-alt: #1B2A44;
  --dark-text: #FFFFFF;
  --dark-text-muted: #C9CFD8;
  --dark-border: rgba(255, 255, 255, 0.10);

  /* Typography */
  --font-serif: 'Palatino Linotype', 'Book Antiqua', Palatino, 'URW Palladio L', 'Palladio', Georgia, serif;
  --font-mono: 'JetBrains Mono', 'Consolas', 'Courier New', monospace;

  /* Layout */
  --max: 1240px;
  --pad: clamp(20px, 4vw, 48px);
  --radius: 4px;
}

/* Dark mode overrides */
[data-theme="dark"] {
  --bg: #0A1220;
  --bg-alt: #0F1A2E;
  --bg-elevated: #1B2A44;
  --surface: #1B2A44;
  --text: #F5F6F8;
  --text-muted: #C9CFD8;
  --text-subtle: #8A94A3;
  --border: rgba(255, 255, 255, 0.12);
  --border-strong: rgba(255, 255, 255, 0.2);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 4px 12px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.4), 0 12px 40px rgba(0, 0, 0, 0.3);
  --nav-bg: rgba(10, 18, 32, 0.88);
  --nav-border: rgba(255, 255, 255, 0.10);
}

/* Reset */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-serif);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* =====================
   NAVIGATION
   ===================== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  background: var(--nav-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--nav-border);
  z-index: 100;
  transition: background 0.3s ease, border-color 0.3s ease;
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 12px var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-logo {
  height: 48px;
  width: auto;
  transition: transform 0.2s ease;
}
.brand:hover .brand-logo { transform: scale(1.03); }

.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 500;
}
.nav-links a {
  color: var(--text);
  position: relative;
  padding: 6px 0;
  transition: color 0.2s;
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  height: 1.5px;
  width: 0;
  background: var(--copper);
  transition: width 0.25s ease;
}
.nav-links a:hover, .nav-links a.active { color: var(--copper); }
.nav-links a.active::after, .nav-links a:hover::after { width: 100%; }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Theme toggle */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--text);
  display: grid;
  place-items: center;
  transition: all 0.2s;
}
.theme-toggle:hover {
  border-color: var(--copper);
  color: var(--copper);
}
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .sun { display: none; }
[data-theme="dark"] .theme-toggle .sun { display: block; }
[data-theme="dark"] .theme-toggle .moon { display: none; }

/* Language selector */
.lang-select {
  position: relative;
}
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-alt);
  color: var(--text);
  font-family: var(--font-serif);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.03em;
  transition: all 0.2s;
}
.lang-toggle:hover {
  border-color: var(--copper);
  color: var(--copper);
}
.lang-toggle svg {
  width: 12px; height: 12px;
  transition: transform 0.2s;
}
.lang-select.open .lang-toggle svg { transform: rotate(180deg); }
.lang-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  min-width: 140px;
  overflow: hidden;
  opacity: 0;
  transform: translateY(-6px);
  visibility: hidden;
  transition: all 0.2s ease;
}
.lang-select.open .lang-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.lang-menu button {
  width: 100%;
  text-align: left;
  padding: 10px 16px;
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--text);
  transition: background 0.15s, color 0.15s;
}
.lang-menu button:hover {
  background: var(--bg);
  color: var(--copper);
}
.lang-menu button.active {
  color: var(--copper);
  font-weight: 600;
}

.nav-cta {
  background: var(--navy);
  color: #FFFFFF;
  padding: 10px 20px;
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  transition: background 0.2s;
}
.nav-cta:hover { background: var(--copper); }
[data-theme="dark"] .nav-cta { background: var(--copper); }
[data-theme="dark"] .nav-cta:hover { background: var(--copper-light); }

/* Mobile menu button */
.menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--text);
  align-items: center;
  justify-content: center;
}
.menu-btn svg { width: 20px; height: 20px; }

@media (max-width: 960px) {
  .nav-links { display: none; }
  .menu-btn { display: flex; }
  .nav-cta { display: none; }
}

/* Mobile drawer */
.mobile-drawer {
  position: fixed;
  top: 0; right: -100%;
  width: min(340px, 90vw);
  height: 100vh;
  background: var(--bg-elevated);
  border-left: 1px solid var(--border);
  z-index: 200;
  padding: 24px;
  transition: right 0.3s ease;
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
}
.mobile-drawer.open { right: 0; }
.drawer-close {
  align-self: flex-end;
  width: 40px; height: 40px;
  border-radius: 50%;
  color: var(--text);
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
}
.mobile-drawer nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 20px;
}
.mobile-drawer nav a {
  padding: 14px 16px;
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 500;
  color: var(--text);
  border-radius: var(--radius);
  border-bottom: 1px solid var(--border);
  transition: background 0.15s, color 0.15s;
}
.mobile-drawer nav a:hover, .mobile-drawer nav a.active {
  color: var(--copper);
}
.drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(10, 18, 32, 0.6);
  z-index: 150;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}
.drawer-backdrop.open { opacity: 1; visibility: visible; }

/* =====================
   HERO
   ===================== */
.hero {
  background: var(--dark-bg);
  color: var(--dark-text);
  padding: 140px var(--pad) 100px;
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at 70% 40%, black 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 70% 40%, black 20%, transparent 75%);
}
.hero-inner {
  max-width: var(--max);
  margin: 0 auto;
  position: relative;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 60px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--copper-light);
  text-transform: uppercase;
  margin-bottom: 28px;
}
.eyebrow::before {
  content: '';
  width: 28px;
  height: 1px;
  background: var(--copper);
}
.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(36px, 5.5vw, 66px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin-bottom: 28px;
}
.hero h1 .accent {
  color: var(--copper-light);
  font-style: italic;
  font-weight: 400;
}
.hero-sub {
  font-size: 18px;
  color: var(--dark-text-muted);
  max-width: 540px;
  margin-bottom: 40px;
  line-height: 1.65;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

.btn-primary {
  background: var(--copper);
  color: #FFFFFF;
  padding: 15px 28px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  transition: background 0.2s, transform 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-primary:hover {
  background: var(--copper-light);
  transform: translateY(-1px);
}
.btn-ghost {
  background: transparent;
  color: var(--dark-text);
  padding: 15px 28px;
  border: 1px solid rgba(255,255,255,0.25);
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  transition: all 0.2s;
}
.btn-ghost:hover {
  border-color: var(--copper);
  background: rgba(184,115,51,0.1);
}

.hero-visual {
  position: relative;
  aspect-ratio: 1;
  max-width: 420px;
  margin-left: auto;
}
.cable-diagram { width: 100%; height: 100%; }
.spec-tag {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--dark-text-muted);
  letter-spacing: 0.05em;
}
.spec-tag::before {
  content: '';
  display: inline-block;
  width: 30px;
  height: 1px;
  background: var(--copper);
  margin-right: 10px;
  vertical-align: middle;
}
.spec-tag.t1 { top: 18%; right: -10px; }
.spec-tag.t2 { top: 48%; right: -20px; }
.spec-tag.t3 { bottom: 22%; right: -10px; }

/* Page hero (smaller, for inner pages) */
.page-hero {
  background: var(--dark-bg);
  color: var(--dark-text);
  padding: 130px var(--pad) 80px;
  position: relative;
  overflow: hidden;
}
.page-hero-inner {
  max-width: var(--max);
  margin: 0 auto;
  position: relative;
}
.page-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}
.page-hero p {
  font-size: 17px;
  color: var(--dark-text-muted);
  max-width: 640px;
  line-height: 1.65;
}

@media (max-width: 860px) {
  .hero { padding: 110px var(--pad) 70px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { max-width: 300px; margin: 0 auto; }
  .spec-tag { display: none; }
  .page-hero { padding: 110px var(--pad) 60px; }
}

/* =====================
   TRUST BAR
   ===================== */
.trust {
  background: var(--navy);
  color: #FFFFFF;
  padding: 22px var(--pad);
  border-top: 1px solid rgba(255,255,255,0.08);
}
.trust-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}
.trust-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel);
}
.trust-items {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 15px;
  color: var(--steel-light);
  letter-spacing: 0.01em;
}
.trust-items span { display: flex; align-items: center; gap: 8px; }
.trust-items span::before {
  content: '';
  width: 5px;
  height: 5px;
  background: var(--copper);
  border-radius: 50%;
}

/* =====================
   SECTIONS
   ===================== */
section { padding: 100px var(--pad); }
.section-inner { max-width: var(--max); margin: 0 auto; }
.section-head {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
  margin-bottom: 60px;
  align-items: end;
}
.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-eyebrow::before {
  content: '';
  width: 28px;
  height: 1px;
  background: var(--copper);
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.8vw, 46px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--text);
}
.section-lead {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 580px;
}

@media (max-width: 860px) {
  section { padding: 70px var(--pad); }
  .section-head { grid-template-columns: 1fr; gap: 24px; }
}

/* =====================
   STATS
   ===================== */
.stats {
  background: var(--bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 0;
}
.stats-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.stat {
  padding: 48px 30px;
  border-right: 1px solid var(--border);
}
.stat:last-child { border-right: none; }
.stat-num {
  font-family: var(--font-serif);
  font-size: 52px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 12px;
}
.stat-num sup {
  font-size: 22px;
  color: var(--copper);
  top: -14px;
  margin-left: 2px;
  font-style: italic;
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  text-transform: uppercase;
  line-height: 1.4;
}

@media (max-width: 860px) {
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .stat { padding: 32px 20px; }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--border); }
  .stat-num { font-size: 38px; }
}

/* =====================
   PRODUCTS
   ===================== */
.products { background: var(--bg-alt); }
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.product-card {
  background: var(--bg-alt);
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  min-height: 290px;
  transition: background 0.2s;
}
.product-card:hover { background: var(--bg); }
.product-index {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--copper);
  letter-spacing: 0.08em;
  margin-bottom: 20px;
}
.product-name {
  font-family: var(--font-serif);
  font-size: 23px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.25;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}
.product-desc {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 24px;
  flex: 1;
}
.product-specs {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.product-specs span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-subtle);
  letter-spacing: 0.03em;
}

@media (max-width: 960px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .product-grid { grid-template-columns: 1fr; }
  .product-card { min-height: auto; }
}

/* =====================
   DARK SECTIONS
   ===================== */
.section-dark {
  background: var(--dark-bg);
  color: var(--dark-text);
  position: relative;
  overflow: hidden;
}
.section-dark::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--copper), transparent);
}
.section-dark .section-title { color: var(--dark-text); }
.section-dark .section-lead { color: var(--dark-text-muted); }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.feature-item {
  padding: 32px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius);
  transition: background 0.2s, border-color 0.2s;
}
.feature-item:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(184, 115, 51, 0.3);
}
.feature-item-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--copper-light);
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}
.feature-item h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.feature-item p {
  font-size: 15px;
  color: var(--dark-text-muted);
  line-height: 1.7;
}

@media (max-width: 860px) {
  .feature-grid { grid-template-columns: 1fr; }
  .feature-item { padding: 26px; }
}

/* =====================
   PROCESS
   ===================== */
.process { background: var(--bg); }
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.process-steps::before {
  content: '';
  position: absolute;
  top: 22px;
  left: 40px;
  right: 40px;
  height: 1px;
  background: var(--border);
  z-index: 0;
}
.step {
  position: relative;
  z-index: 1;
  padding-top: 60px;
}
.step-dot {
  position: absolute;
  top: 12px;
  left: 0;
  width: 22px;
  height: 22px;
  background: var(--bg);
  border: 1.5px solid var(--text);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  color: var(--text);
}
.step.active .step-dot {
  background: var(--copper);
  border-color: var(--copper);
  color: #FFFFFF;
}
.step h4 {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.step p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

@media (max-width: 860px) {
  .process-steps { grid-template-columns: 1fr; gap: 30px; }
  .process-steps::before { display: none; }
  .step { padding-top: 40px; }
}

/* =====================
   CERTIFICATES
   ===================== */
.certs { background: var(--bg-alt); }
.cert-row {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 60px;
  align-items: start;
}
.cert-row h3 {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  line-height: 1.3;
}
.cert-row .section-eyebrow { margin-bottom: 14px; }
.cert-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.cert-item {
  padding: 24px 22px;
  background: var(--bg);
  border-left: 2px solid var(--copper);
  transition: transform 0.2s;
}
.cert-item:hover { transform: translateX(3px); }
.cert-item-code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--copper);
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}
.cert-item p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.55;
}

@media (max-width: 960px) {
  .cert-list { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .cert-row { grid-template-columns: 1fr; gap: 30px; }
  .cert-list { grid-template-columns: 1fr; }
}

/* =====================
   CONTACT
   ===================== */
.contact {
  background: var(--navy);
  color: #FFFFFF;
}
.contact .section-title { color: #FFFFFF; }
.contact .section-lead { color: var(--steel-light); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 70px;
}
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.contact-block-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--copper-light);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.contact-block-value {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 500;
  color: #FFFFFF;
  line-height: 1.5;
}
.contact-block-value a { transition: color 0.2s; }
.contact-block-value a:hover { color: var(--copper-light); }

.contact-form {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 6px;
  padding: 36px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.form-field { display: flex; flex-direction: column; }
.form-field.full { grid-column: 1 / -1; }

label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--steel-light);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
input, textarea, select {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  color: #FFFFFF;
  padding: 12px 14px;
  font-family: var(--font-serif);
  font-size: 15px;
  border-radius: var(--radius);
  transition: border-color 0.2s, background 0.2s;
}
input::placeholder, textarea::placeholder {
  color: rgba(201, 207, 216, 0.5);
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--copper);
  background: rgba(255,255,255,0.08);
}
textarea {
  min-height: 110px;
  resize: vertical;
  font-family: var(--font-serif);
}
select {
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none'%3e%3cpath d='M3 4.5l3 3 3-3' stroke='%23C9CFD8' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}
select option { background: var(--navy-deep); color: #FFF; }

.form-submit {
  width: 100%;
  background: var(--copper);
  color: #FFFFFF;
  padding: 15px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  margin-top: 10px;
  transition: background 0.2s, transform 0.2s;
}
.form-submit:hover {
  background: var(--copper-light);
  transform: translateY(-1px);
}
.form-note {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--steel);
  letter-spacing: 0.03em;
  margin-top: 16px;
  text-align: center;
}

@media (max-width: 960px) {
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 640px) {
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 26px 22px; }
}

/* =====================
   FOOTER
   ===================== */
footer {
  background: var(--navy-ink);
  color: var(--steel);
  padding: 60px var(--pad) 30px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.footer-brand img { height: 60px; width: auto; }
.footer-brand .tag {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--copper-light);
  font-size: 15px;
  line-height: 1.5;
  max-width: 300px;
}
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--copper-light);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 18px;
  font-weight: 500;
}
.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col a {
  font-family: var(--font-serif);
  font-size: 15px;
  color: var(--steel-light);
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--copper-light); }

.footer-bottom {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--steel);
  letter-spacing: 0.04em;
}

@media (max-width: 860px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* =====================
   WHATSAPP FLOATING BUTTON
   ===================== */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px 12px 12px;
  background: #25D366;
  color: #FFFFFF;
  border-radius: 50px;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.35), 0 2px 6px rgba(0,0,0,0.15);
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 15px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  animation: wa-pulse 2.5s ease-in-out infinite;
}
.whatsapp-float:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.45), 0 2px 8px rgba(0,0,0,0.2);
  animation: none;
}
.whatsapp-float-icon {
  width: 40px;
  height: 40px;
  background: #FFFFFF;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #25D366;
}
.whatsapp-float-icon svg { width: 24px; height: 24px; }
.whatsapp-float-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1.1;
}
.whatsapp-float-text small {
  font-family: var(--font-mono);
  font-size: 10px;
  opacity: 0.9;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 400;
}

@keyframes wa-pulse {
  0%, 100% { box-shadow: 0 6px 20px rgba(37, 211, 102, 0.35), 0 0 0 0 rgba(37, 211, 102, 0.5); }
  50% { box-shadow: 0 6px 20px rgba(37, 211, 102, 0.35), 0 0 0 14px rgba(37, 211, 102, 0); }
}

@media (max-width: 640px) {
  .whatsapp-float {
    bottom: 18px;
    right: 18px;
    padding: 10px;
  }
  .whatsapp-float-text { display: none; }
  .whatsapp-float-icon { width: 36px; height: 36px; }
  .whatsapp-float-icon svg { width: 22px; height: 22px; }
}

/* =====================
   UTILITIES
   ===================== */
.container { max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); }
.text-copper { color: var(--copper); }
.divider {
  height: 1px;
  background: var(--border);
  margin: 40px 0;
}

/* =====================
   CATEGORY TABS (Products page)
   ===================== */
.cat-tabs-wrap {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 72px;
  z-index: 50;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.cat-tabs {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 0 var(--pad);
}
.cat-tabs::-webkit-scrollbar { display: none; }
.cat-tab {
  padding: 20px 24px;
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: 0.01em;
}
.cat-tab:hover { color: var(--text); }
.cat-tab.active {
  color: var(--copper);
  border-bottom-color: var(--copper);
}
.cat-tab-count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-subtle);
  background: var(--bg-alt);
  padding: 2px 8px;
  border-radius: 20px;
  border: 1px solid var(--border);
}
.cat-tab.active .cat-tab-count {
  color: var(--copper);
  border-color: var(--copper);
}
@media (max-width: 640px) {
  .cat-tabs-wrap { top: 64px; }
  .cat-tab { padding: 16px 18px; font-size: 14px; }
}

/* =====================
   PRODUCT CARDS V2 (with visual)
   ===================== */
.product-category { display: none; }
.product-category.active { display: block; }

.pc-header {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
  margin-bottom: 50px;
  align-items: end;
}
.pc-header .section-title { font-size: clamp(26px, 3.5vw, 40px); }

.pcard {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
  cursor: pointer;
  display: flex;
  flex-direction: column;
}
.pcard:hover {
  transform: translateY(-4px);
  border-color: var(--copper);
  box-shadow: var(--shadow-lg);
}

.pcard-visual {
  height: 180px;
  background: var(--dark-bg);
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
}
.pcard-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
.pcard-visual svg {
  width: 140px;
  height: 140px;
  position: relative;
  z-index: 1;
}
.pcard-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--copper-light);
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border: 1px solid rgba(216, 149, 102, 0.4);
  border-radius: 3px;
  background: rgba(10, 18, 32, 0.5);
  z-index: 2;
}
.pcard-body {
  padding: 24px 24px 26px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.pcard-code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--copper);
  letter-spacing: 0.06em;
  margin-bottom: 8px;
  font-weight: 500;
}
.pcard-name {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.pcard-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
  flex: 1;
}
.pcard-quick {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.pcard-quick span {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-subtle);
  letter-spacing: 0.04em;
  padding: 3px 8px;
  background: var(--bg);
  border-radius: 3px;
}
.pcard-more {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--copper);
  letter-spacing: 0.08em;
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s;
}
.pcard:hover .pcard-more { gap: 10px; }

.pcards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 960px) {
  .pcards-grid { grid-template-columns: repeat(2, 1fr); }
  .pc-header { grid-template-columns: 1fr; gap: 20px; }
}
@media (max-width: 640px) {
  .pcards-grid { grid-template-columns: 1fr; }
}

/* =====================
   PRODUCT MODAL
   ===================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(10, 18, 32, 0.75);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 300;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.modal-backdrop.open { opacity: 1; visibility: visible; }

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.96);
  width: min(960px, calc(100vw - 32px));
  max-height: calc(100vh - 40px);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  z-index: 310;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.modal.open {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.modal-header-code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--copper);
  letter-spacing: 0.08em;
}
.modal-close {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  color: var(--text);
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  transition: all 0.2s;
}
.modal-close:hover {
  color: var(--copper);
  border-color: var(--copper);
  transform: rotate(90deg);
}

.modal-body {
  overflow-y: auto;
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 0;
}
.modal-visual {
  background: var(--dark-bg);
  padding: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  min-height: 380px;
  position: relative;
}
.modal-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 30px 30px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
.modal-visual svg {
  width: 220px;
  height: 220px;
  position: relative;
  z-index: 1;
}
.modal-visual-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--dark-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  position: relative;
  z-index: 1;
  text-align: center;
}

.modal-content {
  padding: 32px 36px;
  overflow-y: auto;
}
.modal-title {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.modal-subtitle {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 28px;
}

.spec-section-title {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--copper);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 24px 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.spec-section-title:first-of-type { margin-top: 0; }

.spec-table {
  display: grid;
  grid-template-columns: 40% 60%;
  font-size: 14px;
}
.spec-table > div {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.spec-table > div:nth-child(odd) {
  color: var(--text-subtle);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
}
.spec-table > div:nth-child(even) {
  color: var(--text);
  font-weight: 500;
}

.spec-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.spec-list li {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.55;
  padding-left: 20px;
  position: relative;
}
.spec-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--copper);
  border-radius: 50%;
}

.modal-cta {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.modal-cta .btn-primary,
.modal-cta .btn-ghost {
  padding: 12px 22px;
  font-size: 14px;
}
.modal-cta .btn-ghost {
  color: var(--text);
  border-color: var(--border);
}
.modal-cta .btn-ghost:hover {
  border-color: var(--copper);
  color: var(--copper);
  background: transparent;
}

@media (max-width: 780px) {
  .modal { width: calc(100vw - 20px); max-height: calc(100vh - 20px); }
  .modal-body { grid-template-columns: 1fr; }
  .modal-visual { min-height: 260px; padding: 30px; }
  .modal-visual svg { width: 170px; height: 170px; }
  .modal-content { padding: 24px 22px; }
  .modal-title { font-size: 22px; }
}

/* Rich content page (about, standards long-form) */
.rich-content {
  max-width: 780px;
  margin: 0 auto;
}
.rich-content h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
  color: var(--text);
  margin: 48px 0 20px;
  letter-spacing: -0.01em;
}
.rich-content h2:first-child { margin-top: 0; }
.rich-content h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin: 32px 0 14px;
}
.rich-content p {
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-muted);
  margin-bottom: 18px;
}
.rich-content ul, .rich-content ol {
  margin: 18px 0 24px 20px;
  color: var(--text-muted);
}
.rich-content li {
  font-size: 17px;
  line-height: 1.75;
  margin-bottom: 10px;
}
.rich-content .lead {
  font-size: 20px;
  line-height: 1.6;
  color: var(--text);
  font-style: italic;
  border-left: 3px solid var(--copper);
  padding-left: 22px;
  margin: 28px 0;
}

/* Values grid for about page */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 40px;
}
.value-card {
  padding: 32px 28px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.2s, border-color 0.2s;
}
.value-card:hover {
  transform: translateY(-3px);
  border-color: var(--copper);
}
.value-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--copper);
  letter-spacing: 0.08em;
  margin-bottom: 18px;
}
.value-card h4 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}
.value-card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.65;
}
@media (max-width: 860px) {
  .values-grid { grid-template-columns: 1fr; }
}