/* ============================================
   HUAYU MAGNESIUM · hyuanode.cn
   Industrial Editorial / Engineering Precision
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;0,9..144,600;0,9..144,700;1,9..144,300&family=DM+Sans:opsz,wght@9..40,300;9..40,400;9..40,500;9..40,600&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Surfaces */
  --bg: #0B0F14;
  --bg-alt: #10151C;
  --surface: #171F2B;
  --surface-hi: #1E2838;

  /* Ink */
  --ink: #F2EEE6;
  --ink-soft: #D4CEC0;
  --ink-dim: #8B8F96;
  --ink-mute: #4A5058;

  /* Accent — oxide copper, nod to sacrificial metal */
  --accent: #C06530;
  --accent-hi: #E08547;
  --accent-dim: #6A3818;

  /* Structural lines */
  --line: #242E3D;
  --line-soft: #1C2534;
  --grid: rgba(242, 238, 230, 0.04);

  /* Typography */
  --font-display: 'Fraunces', 'Times New Roman', serif;
  --font-body: 'DM Sans', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Menlo', monospace;

  /* Spacing */
  --pad-x: clamp(1.5rem, 4vw, 4rem);
  --pad-y: clamp(4rem, 10vh, 8rem);
  --max-w: 1440px;

  /* Motion */
  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
}

/* ============================================
   Reset + Base
   ============================================ */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(192, 101, 48, 0.08), transparent),
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: auto, 64px 64px, 64px 64px;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

::selection { background: var(--accent); color: var(--ink); }

/* ============================================
   Utility
   ============================================ */
.mono {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding-left: var(--pad-x);
  padding-right: var(--pad-x);
}

.section {
  padding-top: var(--pad-y);
  padding-bottom: var(--pad-y);
  position: relative;
}

.section-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}
.section-label::before {
  content: '';
  width: 32px;
  height: 1px;
  background: var(--accent);
}
.section-label .mono { color: var(--accent); }

/* ============================================
   Header / Nav
   ============================================ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  background: rgba(11, 15, 20, 0.7);
  border-bottom: 1px solid var(--line-soft);
  transition: background 0.3s var(--ease);
}
.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 1.25rem var(--pad-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.brand-logo {
  height: 36px;
  width: auto;
  filter: brightness(1.15) contrast(1.1);
}
.brand-mark {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ink);
}
.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-dim);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.nav {
  display: flex;
  gap: 2rem;
}
.nav a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  position: relative;
  padding: 0.5rem 0;
  transition: color 0.25s var(--ease);
}
.nav a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav a:hover { color: var(--ink); }
.nav a:hover::after { transform: scaleX(1); }
.nav a.is-active { color: var(--ink); }
.nav a.is-active::after { transform: scaleX(1); background: var(--ink); }

.header-cta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.7rem 1.2rem;
  border: 1px solid var(--line);
  color: var(--ink);
  transition: all 0.25s var(--ease);
}
.header-cta:hover {
  background: var(--accent);
  border-color: var(--accent);
}

@media (max-width: 880px) {
  .nav { display: none; }
}

/* ============================================
   Hero
   ============================================ */
.hero {
  min-height: 100vh;
  padding-top: 7rem;
  padding-bottom: 4rem;
  position: relative;
  display: flex;
  align-items: center;
}

.hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad-x);
  width: 100%;
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
  position: relative;
  z-index: 2;
}

.hero-meta {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem 2rem;
  align-items: baseline;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-bottom: 3rem;
}
.hero-meta dt { font-family: var(--font-mono); font-size: 0.7rem; color: var(--ink-dim); letter-spacing: 0.15em; text-transform: uppercase; }
.hero-meta dd { font-family: var(--font-mono); font-size: 0.7rem; color: var(--ink-soft); letter-spacing: 0.1em; }

.hero-title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(3.5rem, 10vw, 9rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: 2.5rem;
  font-variation-settings: "opsz" 144;
}
.hero-title em {
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
}
.hero-title .hero-slash {
  color: var(--accent);
  font-style: normal;
  font-weight: 300;
  margin: 0 0.2em;
}

.hero-lead {
  max-width: 38rem;
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--ink-soft);
  margin-bottom: 3rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.btn {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 1rem 2rem;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--ink);
  transition: all 0.25s var(--ease);
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}
.btn:hover { background: var(--accent-hi); border-color: var(--accent-hi); }
.btn svg { width: 14px; height: 14px; }

.btn-ghost {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--line);
  transition: border-color 0.25s var(--ease);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.hero-scroll {
  position: absolute;
  left: var(--pad-x);
  bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.hero-scroll::after {
  content: '';
  width: 40px;
  height: 1px;
  background: var(--ink-dim);
  animation: scroll-line 2s ease-in-out infinite;
}
@keyframes scroll-line {
  0%, 100% { transform: scaleX(0.3); transform-origin: left; }
  50% { transform: scaleX(1); }
}

/* Hero: corner decoration crosshairs */
.hero::before, .hero::after {
  content: '';
  position: absolute;
  width: 48px; height: 48px;
  border: 1px solid var(--line);
}
.hero::before { top: 7rem; right: var(--pad-x); border-left: 0; border-bottom: 0; }
.hero::after { bottom: 2rem; right: var(--pad-x); border-left: 0; border-top: 0; }

/* ============================================
   Metrics Strip
   ============================================ */
.metrics {
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.metrics-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.metric {
  padding: 3.5rem 2rem;
  border-right: 1px solid var(--line);
  position: relative;
}
.metric:last-child { border-right: 0; }
.metric-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 1rem;
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}
.metric-label .metric-num {
  color: var(--accent);
  font-size: 0.65rem;
}
.metric-value {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.75rem, 5vw, 4rem);
  line-height: 1;
  color: var(--ink);
  font-variation-settings: "opsz" 144;
  display: flex;
  align-items: baseline;
  gap: 0.3rem;
}
.metric-unit {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--ink-dim);
  font-weight: 400;
  letter-spacing: 0.05em;
}
.metric-desc {
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-top: 0.75rem;
  line-height: 1.5;
}

@media (max-width: 880px) {
  .metrics-grid { grid-template-columns: 1fr 1fr; }
  .metric { border-bottom: 1px solid var(--line); }
  .metric:nth-child(2n) { border-right: 0; }
  .metric:nth-last-child(-n+2) { border-bottom: 0; }
}

/* ============================================
   Products — Periodic Table Style
   ============================================ */
.products-intro {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: end;
  margin-bottom: 5rem;
}
.products-headline {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink);
  font-variation-settings: "opsz" 144;
}
.products-headline em { font-style: italic; color: var(--accent); font-weight: 400; }
.products-copy {
  font-size: 1rem;
  color: var(--ink-soft);
  line-height: 1.7;
  max-width: 32rem;
}

.element-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.element {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 2rem;
  position: relative;
  transition: all 0.3s var(--ease);
  min-height: 340px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  cursor: pointer;
}
.element::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 40% at 50% 100%, rgba(192, 101, 48, 0.15), transparent);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}
.element:hover {
  border-color: var(--accent);
  background: var(--surface-hi);
  transform: translateY(-4px);
}
.element:hover::before { opacity: 1; }

.element-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 2rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--ink-dim);
  text-transform: uppercase;
  position: relative;
  z-index: 1;
}
.element-symbol {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 5.5rem;
  line-height: 0.9;
  color: var(--ink);
  margin-bottom: 0.5rem;
  font-variation-settings: "opsz" 144;
  position: relative;
  z-index: 1;
  transition: color 0.3s var(--ease);
}
.element:hover .element-symbol { color: var(--accent-hi); }

.element-name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.35rem;
  color: var(--ink);
  margin-bottom: 0.5rem;
  position: relative;
  z-index: 1;
}
.element-meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  z-index: 1;
}
.element-meta .arrow {
  transition: transform 0.25s var(--ease);
}
.element:hover .element-meta .arrow { transform: translateX(4px); color: var(--accent); }

@media (max-width: 1000px) {
  .element-grid { grid-template-columns: repeat(2, 1fr); }
  .products-intro { grid-template-columns: 1fr; gap: 2rem; }
}

/* ============================================
   Heritage — Since 2000
   ============================================ */
.heritage {
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.heritage-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--pad-y) var(--pad-x);
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 6rem;
  align-items: center;
}
.heritage-mark {
  position: relative;
}
.heritage-year {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(8rem, 18vw, 14rem);
  line-height: 0.85;
  color: var(--ink);
  font-variation-settings: "opsz" 144;
  letter-spacing: -0.04em;
}
.heritage-year em {
  font-style: italic;
  color: var(--accent);
  font-weight: 400;
}
.heritage-cross {
  position: absolute;
  top: -20px;
  right: -20px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-dim);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.heritage-cross::before {
  content: '+';
  display: block;
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.heritage-body .mono { margin-bottom: 1.5rem; display: inline-block; }
.heritage-body h2 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2rem, 3.5vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 2rem;
  font-variation-settings: "opsz" 144;
}
.heritage-body h2 em { font-style: italic; color: var(--accent); font-weight: 400; }
.heritage-body p {
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 1.5rem;
  max-width: 40rem;
}

.heritage-quote {
  margin-top: 2.5rem;
  padding-left: 1.5rem;
  border-left: 2px solid var(--accent);
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: 1.15rem;
  line-height: 1.5;
  color: var(--ink);
}
.heritage-quote span {
  display: block;
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.7rem;
  color: var(--ink-dim);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

@media (max-width: 960px) {
  .heritage-inner { grid-template-columns: 1fr; gap: 3rem; }
}

/* ============================================
   Capabilities (4 technical highlights)
   ============================================ */
.capabilities {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.capability {
  padding: 3rem 2.5rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  position: relative;
  transition: background 0.3s var(--ease);
}
.capability:hover { background: var(--surface); }
.capability-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 2rem;
}
.capability-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}
.capability-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-dim);
  letter-spacing: 0.1em;
}
.capability-value {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(3rem, 5vw, 4.5rem);
  line-height: 1;
  color: var(--ink);
  font-variation-settings: "opsz" 144;
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 1rem;
}
.capability-value-unit {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--ink-dim);
  font-weight: 400;
}
.capability h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.4rem;
  color: var(--ink);
  margin-bottom: 1rem;
}
.capability p {
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.65;
}

@media (max-width: 880px) {
  .capabilities { grid-template-columns: 1fr; }
}

/* ============================================
   Credentials
   ============================================ */
.credentials {
  text-align: center;
}
.credentials .mono { color: var(--accent); }
.credentials h2 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 1.5rem 0 1.5rem;
  color: var(--ink);
  font-variation-settings: "opsz" 144;
}
.credentials h2 em { font-style: italic; color: var(--accent); font-weight: 400; }
.credentials-lead {
  max-width: 42rem;
  margin: 0 auto 5rem;
  color: var(--ink-soft);
  line-height: 1.7;
}

.cert-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.cert-item {
  padding: 2.5rem 1.5rem;
  border-right: 1px solid var(--line);
  text-align: center;
  transition: background 0.3s var(--ease);
}
.cert-item:last-child { border-right: 0; }
.cert-item:hover { background: var(--surface); }
.cert-item-name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.5rem;
  letter-spacing: 0.02em;
  color: var(--ink);
  margin-bottom: 0.5rem;
}
.cert-item-desc {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--ink-dim);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.cert-honors {
  margin-top: 4rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
.cert-honor {
  padding: 1.5rem;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  text-align: center;
  transition: border-color 0.25s var(--ease);
}
.cert-honor:hover { border-color: var(--accent); color: var(--ink); }

@media (max-width: 880px) {
  .cert-row { grid-template-columns: repeat(2, 1fr); }
  .cert-item { border-bottom: 1px solid var(--line); }
  .cert-item:nth-child(2n) { border-right: 0; }
  .cert-item:nth-last-child(-n+2) { border-bottom: 0; }
  .cert-honors { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================
   Contact CTA
   ============================================ */
.cta {
  background:
    radial-gradient(ellipse 60% 80% at 50% 100%, rgba(192, 101, 48, 0.15), transparent 70%),
    var(--bg);
  text-align: center;
  border-top: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 140%; height: 140%;
  background: radial-gradient(circle, transparent 30%, var(--bg) 70%);
  pointer-events: none;
}
.cta-inner { position: relative; z-index: 1; }
.cta .mono { color: var(--accent); margin-bottom: 2rem; display: inline-block; }
.cta h2 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(3rem, 7vw, 6rem);
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  color: var(--ink);
  font-variation-settings: "opsz" 144;
}
.cta h2 em { font-style: italic; color: var(--accent); font-weight: 400; }
.cta p {
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: 36rem;
  margin: 0 auto 3rem;
  line-height: 1.7;
}
.cta-contact {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  max-width: 44rem;
  margin: 3rem auto 0;
  border-top: 1px solid var(--line);
}
@media (max-width: 640px) { .cta-contact { grid-template-columns: 1fr; } }
.cta-contact-item {
  padding: 1.5rem 1rem;
  border-right: 1px solid var(--line);
}
.cta-contact-item:last-child { border-right: 0; }
.cta-contact-item .mono {
  color: var(--ink-dim);
  margin-bottom: 0.5rem;
  display: block;
}
.cta-contact-item a {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--ink);
  font-weight: 400;
}
.cta-contact-item a:hover { color: var(--accent); }

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--line);
  padding: 3rem var(--pad-x) 2rem;
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: 3rem;
  align-items: start;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--line);
}
.footer-brand {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.1rem;
  color: var(--ink);
}
.footer-brand span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-dim);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-top: 0.5rem;
}
.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem 2rem;
}
.footer-nav a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  transition: color 0.25s var(--ease);
}
.footer-nav a:hover { color: var(--accent); }
.footer-address {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.7;
  color: var(--ink-dim);
  letter-spacing: 0.05em;
}
.footer-copy {
  max-width: var(--max-w);
  margin: 1.5rem auto 0;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--ink-mute);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

@media (max-width: 880px) {
  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
  .footer-nav { grid-template-columns: repeat(2, 1fr); }
  .footer-copy { flex-direction: column; gap: 0.5rem; }
}

/* ============================================
   Reveal Animations
   ============================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* Staggered hero entry */
.hero-meta { opacity: 0; transform: translateY(16px); animation: hero-in 0.8s var(--ease) 0.1s forwards; }
.hero-title { opacity: 0; transform: translateY(24px); animation: hero-in 1s var(--ease) 0.3s forwards; }
.hero-lead { opacity: 0; transform: translateY(20px); animation: hero-in 0.9s var(--ease) 0.6s forwards; }
.hero-actions { opacity: 0; transform: translateY(16px); animation: hero-in 0.8s var(--ease) 0.85s forwards; }

@keyframes hero-in {
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  [data-reveal] { opacity: 1; transform: none; }
}

/* ============================================
   Subpages · Page Hero
   ============================================ */
.page-hero {
  padding: 10rem var(--pad-x) 5rem;
  border-bottom: 1px solid var(--line);
  background: radial-gradient(ellipse 60% 40% at 0% 0%, rgba(192,101,48,.08), transparent);
}
.page-hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.5fr 1.5fr;
  gap: 3rem;
  align-items: end;
}
.page-hero-meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-dim);
  line-height: 1.8;
}
.page-hero-meta strong {
  color: var(--accent);
  font-weight: 500;
  display: block;
  margin-bottom: 0.5rem;
}
.page-hero-title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(3rem, 7vw, 6rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
  color: var(--ink);
  font-variation-settings: "opsz" 144;
}
.page-hero-title em { font-style: italic; color: var(--accent); font-weight: 400; }
.page-hero-lead {
  margin-top: 2rem;
  max-width: 40rem;
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.7;
}
@media (max-width: 880px) {
  .page-hero-inner { grid-template-columns: 1fr; gap: 1.5rem; }
  .page-hero { padding-top: 8rem; }
}

/* ============================================
   Timeline
   ============================================ */
.timeline { position: relative; padding-left: 3rem; }
.timeline::before {
  content: ''; position: absolute;
  left: 0.75rem; top: 0; bottom: 0;
  width: 1px;
  background: linear-gradient(var(--accent), var(--line) 20%, var(--line));
}
.timeline-item { position: relative; padding-bottom: 3rem; }
.timeline-item::before {
  content: ''; position: absolute;
  left: -2.5rem; top: 0.6rem;
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 4px var(--bg);
}
.timeline-year {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 0.5rem;
  display: block;
}
.timeline-item h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.35rem;
  color: var(--ink);
  margin-bottom: 0.5rem;
}
.timeline-item p { color: var(--ink-soft); font-size: 0.95rem; line-height: 1.65; max-width: 36rem; }

/* Industry chips */
.industry-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.industry {
  padding: 2rem 1.5rem;
  border: 1px solid var(--line);
  background: var(--surface);
  transition: all 0.25s var(--ease);
}
.industry:hover { border-color: var(--accent); background: var(--surface-hi); }
.industry-icon {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 1rem;
  display: block;
}
.industry-name { font-family: var(--font-display); font-size: 1.15rem; color: var(--ink); margin-bottom: 0.5rem; }
.industry-desc { font-size: 0.85rem; color: var(--ink-dim); line-height: 1.5; }
@media (max-width: 880px) { .industry-grid { grid-template-columns: 1fr 1fr; } }

/* ============================================
   Contact Page
   ============================================ */
.contact-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--line);
}
.contact-panel {
  padding: 3rem;
  border-right: 1px solid var(--line);
  background: var(--bg);
}
.contact-panel:last-child { border-right: 0; background: var(--surface); }
.contact-panel h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.6rem;
  color: var(--ink);
  margin-bottom: 2rem;
}
.contact-entry { padding: 1.25rem 0; border-top: 1px solid var(--line); }
.contact-entry:first-of-type { border-top: 0; }
.contact-entry .mono { display: block; margin-bottom: 0.4rem; color: var(--ink-dim); }
.contact-entry a, .contact-entry p {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--ink);
  display: block;
}
.contact-entry a:hover { color: var(--accent); }

.contact-form { display: grid; gap: 1.25rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 0.5rem;
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
  padding: 0.75rem 0;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color 0.25s var(--ease);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: 0; border-bottom-color: var(--accent);
}
.form-group textarea { resize: vertical; min-height: 7rem; }
.form-group select { cursor: pointer; }
.form-group select option { background: var(--bg); }
.form-submit {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 1.2rem;
  background: var(--accent);
  border: 1px solid var(--accent);
  color: var(--ink);
  cursor: pointer;
  transition: background 0.25s var(--ease);
  margin-top: 1rem;
}
.form-submit:hover:not(:disabled) { background: var(--accent-hi); }
.form-submit:disabled { opacity: 0.5; cursor: not-allowed; }
.form-message {
  padding: 1rem;
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: center;
}
.form-message.ok { background: rgba(120,180,100,.1); color: #B5D9A0; border: 1px solid rgba(120,180,100,.3); }
.form-message.err { background: rgba(200,90,80,.1); color: #E8A8A0; border: 1px solid rgba(200,90,80,.3); }

@media (max-width: 880px) {
  .contact-split { grid-template-columns: 1fr; }
  .contact-panel { border-right: 0; border-bottom: 1px solid var(--line); padding: 2rem; }
  .form-row { grid-template-columns: 1fr; }
}

/* ============================================
   Products Page
   ============================================ */
.product-jumpnav {
  position: sticky;
  top: 65px;
  z-index: 50;
  background: rgba(11,15,20,.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  padding: 1rem var(--pad-x);
}
.product-jumpnav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  gap: 2.5rem;
  justify-content: center;
  flex-wrap: wrap;
}
.product-jumpnav a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding: 0.5rem 0;
  border-bottom: 1px solid transparent;
  transition: all 0.25s var(--ease);
}
.product-jumpnav a:hover, .product-jumpnav a.is-active {
  color: var(--accent);
  border-color: var(--accent);
}

.product-group { padding: 6rem 0; border-top: 1px solid var(--line); }
.product-group-head {
  display: grid;
  grid-template-columns: 0.6fr 1.4fr;
  gap: 4rem;
  align-items: start;
  margin-bottom: 4rem;
}
.product-group-sym {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(7rem, 14vw, 12rem);
  line-height: 0.9;
  color: var(--ink);
  font-variation-settings: "opsz" 144;
}
.product-group-sym sub {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--ink-dim);
  vertical-align: super;
  margin-left: 0.5rem;
  letter-spacing: 0.1em;
}
.product-group-info h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2rem, 3.5vw, 3rem);
  line-height: 1.1;
  color: var(--ink);
  margin-bottom: 1.5rem;
  font-variation-settings: "opsz" 144;
}
.product-group-info p { color: var(--ink-soft); line-height: 1.7; margin-bottom: 1.5rem; max-width: 42rem; }
.product-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.5rem; }
.product-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--accent-dim);
}
.product-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.product-row {
  padding: 2rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  transition: background 0.25s var(--ease);
  display: block;
}
.product-row:hover { background: var(--surface); }
.product-row-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--ink-dim);
  text-transform: uppercase;
}
.product-row h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.3rem;
  color: var(--ink);
  margin-bottom: 0.75rem;
}
.product-row p { color: var(--ink-soft); font-size: 0.9rem; line-height: 1.6; margin-bottom: 1rem; }
.product-row .spec {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.05em;
}
@media (max-width: 960px) {
  .product-group-head { grid-template-columns: 1fr; gap: 2rem; }
  .product-list { grid-template-columns: 1fr; }
}

/* ============================================
   Resources
   ============================================ */
.resource-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border: 1px solid var(--line);
}
.resource-card {
  padding: 2.5rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  transition: background 0.25s var(--ease);
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  position: relative;
}
.resource-card:nth-child(2n) { border-right: 0; }
.resource-card:nth-last-child(-n+2) { border-bottom: 0; }
.resource-card:hover { background: var(--surface); }
.resource-icon {
  width: 48px; height: 48px;
  flex-shrink: 0;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--accent);
  background: var(--surface);
}
.resource-body { flex: 1; }
.resource-body h3 { font-family: var(--font-display); font-weight: 400; font-size: 1.2rem; color: var(--ink); margin-bottom: 0.5rem; }
.resource-body p { color: var(--ink-soft); font-size: 0.9rem; line-height: 1.6; margin-bottom: 1rem; }
.resource-meta {
  display: flex; gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.resource-meta .type { color: var(--accent); }
.resource-arrow { position: absolute; top: 2.5rem; right: 2.5rem; color: var(--ink-dim); transition: color 0.25s var(--ease); }
.resource-card:hover .resource-arrow { color: var(--accent); }

@media (max-width: 880px) {
  .resource-grid { grid-template-columns: 1fr; }
  .resource-card { border-right: 0 !important; }
  .resource-card:last-child { border-bottom: 0; }
}

/* ============================================
   Journal / News
   ============================================ */
.journal-feed { max-width: 48rem; margin: 0 auto; }
.journal-entry { padding: 3rem 0; border-bottom: 1px solid var(--line); }
.journal-entry:first-child { padding-top: 0; }
.journal-entry:last-child { border-bottom: 0; }
.journal-date {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.journal-entry h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.75rem;
  line-height: 1.25;
  color: var(--ink);
  margin-bottom: 1.25rem;
  font-variation-settings: "opsz" 144;
}
.journal-entry p { color: var(--ink-soft); line-height: 1.75; margin-bottom: 1rem; }
.journal-tags { display: flex; gap: 0.5rem; margin-top: 1.5rem; flex-wrap: wrap; }
.journal-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-dim);
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--line);
}
.journal-images {
  margin: 1.5rem 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.75rem;
}
.journal-images img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
}

/* ============================================
   WhatsApp Floating Button
   ============================================ */
.wa-float {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 999;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.25rem;
    background: #25D366;
    color: #fff;
    border-radius: 999px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    font-weight: 500;
    box-shadow: 0 8px 24px rgba(0,0,0,0.35), 0 2px 8px rgba(37, 211, 102, 0.45);
    transition: all 0.25s var(--ease);
    text-decoration: none;
}
.wa-float:hover {
    background: #20BD5A;
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.45), 0 4px 12px rgba(37, 211, 102, 0.65);
}
.wa-float svg { width: 18px; height: 18px; flex-shrink: 0; }
@media (max-width: 640px) {
    .wa-float span { display: none; }
    .wa-float { padding: 0.9rem; border-radius: 50%; }
    .wa-float svg { width: 22px; height: 22px; }
}