/* ============================================================
   DERON DESIGN SYSTEM — "PRECISION MISSION"
   Multi-page SEO-ready architecture
   ============================================================ */

/* --- VARIABLES --- */
:root {
  --bg-light:      #F7F6F2;
  --bg-white:      #FDFCF9;
  --bg-dark:       #0B0E13;
  --bg-mid:        #111720;
  --bg-section:    #F2F0EB;
  --text-primary:  #111111;
  --text-body:     #2A2A2A;
  --text-muted:    #6B6660;
  --text-inv:      #EDE9E3;
  --text-inv-muted:#8A9BAE;
  --red:           #C41E3A;
  --red-hover:     #A3172F;
  --green:         #2E5A3F;
  --gold:          #B8901A;
  --border:        #E0DDD6;
  --border-dark:   #232D3F;
  --font-display:  'Be Vietnam Pro', sans-serif;
  --font-body:     'Be Vietnam Pro', sans-serif;
  --font-label:    'Barlow Condensed', sans-serif;
  --font-mono:     'JetBrains Mono', monospace;
  --radius:        4px;
  --radius-lg:     8px;
  --transition:    200ms ease;
}

/* --- RESET --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-body);
  background: var(--bg-light);
  color: var(--text-body);
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* --- TYPOGRAPHY --- */
.label {
  font-family: var(--font-label);
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text-muted);
}
.label-red { color: var(--red); }
.label-inv { color: var(--text-inv-muted); }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 800; line-height: 1.1;
  letter-spacing: -0.025em;
}
h1 { font-size: clamp(42px, 6vw, 76px); }
h2 { font-size: clamp(32px, 4vw, 56px); }
h3 { font-size: clamp(22px, 2.5vw, 32px); }
h4 {
  font-family: var(--font-display);
  font-weight: 700; font-size: 18px;
  letter-spacing: -0.01em;
}
p {
  max-width: 60ch;
  text-align: justify;
  text-justify: inter-word;
}

.label,
.btn,
.nav,
.nav-mobile-drawer,
.footer-heading,
.footer-bottom,
.cta-section,
.lang-dropdown {
  text-align: initial;
}

.text-inv { color: var(--text-inv); }
.text-inv p, .text-inv h1, .text-inv h2, .text-inv h3, .text-inv h4 { color: var(--text-inv); }

/* --- CTA SECTION (dark) --- */
.cta-section { background: var(--bg-dark); padding: 96px 0; text-align: center; }

/* --- LAYOUT --- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }
.container-narrow { max-width: 860px; margin: 0 auto; padding: 0 32px; }
.section { padding: 96px 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* --- NAVIGATION --- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 0 32px; height: 64px;
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(11, 14, 19, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-dark);
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-weight: 900;
  font-size: 18px; letter-spacing: 0.04em; color: #fff;
}
.nav-logo img {
  width: 22px;
  height: 22px;
  object-fit: contain;
  flex-shrink: 0;
}
.nav-logo .logo-light { display: none; }
@media (prefers-color-scheme: light) {
  .nav-logo .logo-dark { display: none; }
  .nav-logo .logo-light { display: block; }
}
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-link {
  font-family: var(--font-label);
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: rgba(255,255,255,0.65);
  padding: 8px 14px; border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover, .nav-link.active {
  color: #fff; background: rgba(255,255,255,0.08);
}
.nav-cta {
  font-family: var(--font-label);
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: #fff; background: var(--red);
  padding: 9px 18px; border-radius: var(--radius);
  transition: background var(--transition);
  display: inline-block;
}
.nav-cta:hover { background: var(--red-hover); }

.nav-hamburger {
  display: none; flex-direction: column; gap: 5px;
  padding: 8px; cursor: pointer;
}
.nav-hamburger span {
  display: block; width: 22px; height: 2px;
  background: #fff; border-radius: 2px;
}

/* --- BUTTONS --- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-label);
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 14px 28px; border-radius: var(--radius);
  cursor: pointer; transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary { background: var(--red); color: #fff; }
.btn-primary:hover { background: var(--red-hover); transform: translateY(-1px); }
.btn-outline { border: 1.5px solid rgba(255,255,255,0.3); color: #fff; }
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,0.07); }
.btn-outline-dark { border: 1.5px solid var(--border); color: var(--text-primary); }
.btn-outline-dark:hover { border-color: var(--text-primary); }
.btn-arrow::after { content: '→'; margin-left: 4px; transition: transform var(--transition); }
.btn-arrow:hover::after { transform: translateX(4px); }

/* --- HERO --- */
.hero {
  min-height: 80vh; background: var(--bg-dark);
  position: relative; overflow: hidden;
  display: flex; align-items: center;
}
.hero-grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(196,30,58,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(196,30,58,0.04) 1px, transparent 1px);
  background-size: 80px 80px; opacity: 0.4;
}
.hero-content {
  position: relative; z-index: 2;
  padding: 140px 32px 100px;
  max-width: 1200px; margin: 0 auto; width: 100%;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-label);
  font-size: 10px; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--red);
  border: 1px solid rgba(196,30,58,0.35);
  padding: 6px 12px; border-radius: 2px;
  margin-bottom: 32px;
}
.hero-badge-dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--red); animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}
.hero-title {
  color: #fff;
  font-size: clamp(48px, 7vw, 88px);
  font-weight: 900; line-height: 1.0;
  letter-spacing: -0.03em;
  margin-bottom: 28px; max-width: 800px;
}
.hero-title span { color: var(--red); }
.hero-sub {
  font-size: 18px; font-weight: 400;
  color: var(--text-inv-muted);
  line-height: 1.7; margin-bottom: 48px; max-width: 520px;
}
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; }

/* --- PAGE HERO (smaller) --- */
.page-hero {
  background: var(--bg-dark);
  padding: 140px 0 80px;
  position: relative; overflow: hidden;
}

/* --- TILE GRID (gap-2px pattern) --- */
.tile-grid {
  display: grid;
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.tile-grid.dark {
  background: var(--border-dark);
  border-color: var(--border-dark);
}
.tile-grid .cell { background: var(--bg-white); padding: 44px 32px; }
.tile-grid.dark .cell { background: var(--bg-mid); padding: 40px 32px; }
.tile-grid.dark .cell h4 { color: var(--text-inv); }
.tile-grid.dark .cell p { color: var(--text-inv-muted); }
.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-4 { grid-template-columns: repeat(4, 1fr); }

/* --- SPEC TABLE --- */
.spec-table {
  width: 100%; border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg); overflow: hidden;
}
.spec-row {
  display: grid; grid-template-columns: 200px 1fr;
  border-bottom: 1px solid var(--border-dark);
}
.spec-row:last-child { border-bottom: none; }
.spec-key {
  font-family: var(--font-label);
  font-size: 10px; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--text-inv-muted);
  padding: 18px 24px;
  border-right: 1px solid var(--border-dark);
  background: rgba(255,255,255,0.02);
}
.spec-val {
  font-family: var(--font-mono);
  font-size: 13px; color: var(--text-inv);
  padding: 18px 24px;
}
.spec-tag {
  display: inline-block;
  font-family: var(--font-label);
  font-size: 9px; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 3px 8px; border-radius: 2px;
  margin-left: 8px;
  background: rgba(196,30,58,0.15);
  color: var(--red);
}

/* --- TECHNOLOGY OVERVIEW --- */
.technology-overview {
  background: var(--bg-dark);
  padding: 96px 0 112px;
  border-top: 1px solid var(--border-dark);
}
.tech-overview-head {
  display: grid;
  grid-template-columns: minmax(0, 760px);
  gap: 24px;
  align-items: start;
  margin-bottom: 56px;
}
.tech-overview-copy p {
  color: var(--text-inv-muted);
  font-size: 18px;
  line-height: 1.75;
  max-width: 680px;
  margin-top: 24px;
}
.tech-visual-placeholder {
  min-height: 320px;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  background-color: #0E141D;
  background-image:
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(135deg, rgba(196,30,58,0.16), transparent 42%);
  background-size: 44px 44px, 44px 44px, 100% 100%;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
  justify-content: center;
  color: rgba(237,233,227,0.44);
  font-family: var(--font-label);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.03);
}
.tech-visual-code {
  color: var(--text-inv);
  font-family: var(--font-display);
  font-size: clamp(42px, 6vw, 72px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.04em;
}
.tech-visual-label {
  color: rgba(138,155,174,0.72);
  font-family: var(--font-label);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.tech-layer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
.tech-layer-card {
  background: var(--bg-mid);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.92fr);
  gap: 0;
  min-height: 340px;
}
.tech-layer-copy {
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.tech-card-visual {
  min-height: 100%;
  height: 100%;
  border: 0;
  border-left: 1px solid var(--border-dark);
  border-radius: 0;
}
.tech-card-image-frame {
  padding: 18px;
  overflow: hidden;
  align-items: stretch;
  justify-content: center;
}
.tech-card-image-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  border-radius: calc(var(--radius-lg) - 6px);
  border: 1px solid rgba(138,155,174,0.18);
  background: #05070B;
  box-shadow: 0 24px 70px rgba(0,0,0,0.34);
}
.tech-layer-card:nth-child(even) .tech-layer-copy { order: 2; }
.tech-layer-card:nth-child(even) .tech-card-visual {
  order: 1;
  border-left: 0;
  border-right: 1px solid var(--border-dark);
}
.tech-layer-acronym {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 18px;
}
.tech-layer-card h3 {
  color: var(--text-inv);
  font-size: 22px;
  line-height: 1.18;
  margin-bottom: 16px;
  letter-spacing: -0.015em;
}
.tech-layer-card p {
  color: var(--text-inv-muted);
  font-size: 14px;
  line-height: 1.7;
  max-width: 100%;
}
.tech-layer-line {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.08);
  color: var(--text-inv) !important;
}
.tech-positioning-card {
  margin-top: 2px;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  background: #0E141D;
  padding: 38px 40px;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 32px;
  align-items: start;
}
.tech-positioning-card p {
  color: var(--text-inv);
  font-size: 20px;
  line-height: 1.65;
  max-width: 840px;
}

/* --- STATUS BADGE --- */
.status-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(196,30,58,0.15);
  border: 1px solid rgba(196,30,58,0.3);
  border-radius: 4px; padding: 6px 12px;
}
.status-badge .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--red); animation: pulse 2s infinite;
}
.status-badge span {
  font-family: var(--font-label);
  font-size: 9px; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--red);
}

/* --- TIMELINE --- */
.timeline { position: relative; margin-top: 48px; }
.timeline::before {
  content: ''; position: absolute; left: 32px; top: 0; bottom: 0;
  width: 1px; background: var(--border);
}
.timeline-item {
  display: grid; grid-template-columns: 80px 1fr;
  gap: 32px; margin-bottom: 48px; position: relative;
}
.timeline-marker {
  display: flex; align-items: flex-start;
  justify-content: center; padding-top: 4px;
  position: relative; z-index: 1;
}
.timeline-dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--red);
  border: 3px solid var(--bg-light);
  box-shadow: 0 0 0 1px var(--red);
}
.timeline-year {
  font-family: var(--font-mono);
  font-size: 11px; color: var(--red);
  font-weight: 500; margin-bottom: 8px;
}
.timeline-content h4 { margin-bottom: 8px; }
.timeline-content p { color: var(--text-muted); font-size: 14px; max-width: 480px; }

/* --- FOOTER --- */
.footer {
  background: var(--bg-dark);
  border-top: 1px solid var(--border-dark);
  padding: 64px 32px 40px;
}
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-top {
  display: grid; grid-template-columns: 240px repeat(5, minmax(0, 1fr));
  gap: 32px; margin-bottom: 56px;
}
.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display); font-weight: 900;
  font-size: 20px; letter-spacing: 0.02em;
  color: #fff; margin-bottom: 14px;
}
.footer-logo-img {
  width: 24px;
  height: 24px;
  object-fit: contain;
  flex-shrink: 0;
}
.footer-logo-dark { display: none; }
@media (prefers-color-scheme: dark) {
  .footer-logo-light { display: none; }
  .footer-logo-dark { display: block; }
}
.footer-brand-desc {
  font-size: 13px; color: var(--text-inv-muted);
  line-height: 1.6; max-width: 220px; margin-bottom: 24px;
}
.footer-tagline {
  font-family: var(--font-label);
  font-size: 10px; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: rgba(196,30,58,0.7);
}
.footer-col-title {
  font-family: var(--font-label);
  font-size: 10px; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text-inv-muted); margin-bottom: 20px;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-link,
a.footer-link,
a.footer-link:link,
a.footer-link:visited,
a.footer-link:active {
  font-size: 14px;
  color: rgba(255,255,255,0.5) !important;
  text-decoration: none !important;
  cursor: pointer;
  transition: color var(--transition);
}
.footer-link:hover,
a.footer-link:hover,
a.footer-link:focus { color: #fff !important; }
.footer-social {
  display: flex; flex-direction: row; flex-wrap: nowrap;
  align-items: center; justify-content: flex-end; gap: clamp(10px, 1.2vw, 18px);
  margin: clamp(-44px, -3.5vw, -12px) 0 clamp(22px, 3vw, 34px);
  width: 100%;
  max-width: 100%;
  overflow: hidden;
}
.footer-social-link {
  display: inline-flex; align-items: center; justify-content: center;
  flex: 0 0 auto;
  border-radius: 8px;
  transition: transform var(--transition), opacity var(--transition);
}
.footer-social-link img {
  height: clamp(34px, 3.2vw, 64px); width: auto; max-width: clamp(150px, 16vw, 300px); display: block;
  border-radius: 8px;
  object-fit: contain;
}
.footer-social-link .footer-zalo-logo {
  width: clamp(34px, 3.2vw, 64px);
  height: clamp(34px, 3.2vw, 64px);
  padding: clamp(4px, .45vw, 7px);
  background: #fff;
  border-radius: 12px;
  box-sizing: border-box;
}
.footer-social-link:hover { transform: translateY(-2px); opacity: 0.88; }
.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--border-dark);
  display: flex; justify-content: space-between;
  align-items: center; flex-wrap: wrap; gap: 16px;
}
.footer-copy { font-size: 12px; color: rgba(255,255,255,0.3); }
.footer-location {
  font-family: var(--font-label);
  font-size: 10px; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: rgba(255,255,255,0.25);
}
.footer-back-home {
  margin-top: 20px;
  display: flex;
  justify-content: flex-start;
}
.footer-back-btn {
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 10px 24px;
}

/* --- REVEAL ANIMATION --- */
.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity 500ms ease, transform 500ms ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 80ms; }
.reveal-delay-2 { transition-delay: 160ms; }
.reveal-delay-3 { transition-delay: 240ms; }

/* --- BREADCRUMB --- */
.breadcrumb {
  font-family: var(--font-label);
  font-size: 10px; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-inv-muted); margin-bottom: 20px;
}
.breadcrumb a { color: rgba(255,255,255,0.4); transition: color var(--transition); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { margin: 0 8px; opacity: 0.4; }

/* --- RESPONSIVE --- */
@media (max-width: 1180px) {
  .footer-top { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 28px; }
  .footer-top > .footer-brand,
  .footer-top > div:first-child { grid-column: 1 / -1; max-width: 100%; }
  .footer-top > .footer-brand .footer-brand-desc,
  .footer-top > div:first-child .footer-brand-desc { max-width: 520px; }
}
@media (max-width: 1024px) {
  .cols-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 768px) {
  .container, .container-narrow { padding: 0 20px; }
  .section { padding: 64px 0; }
  .grid-2, .grid-3, .cols-3 { grid-template-columns: 1fr; }
  .cols-4 { grid-template-columns: 1fr; }
  .tech-overview-head, .tech-positioning-card, .tech-layer-grid, .tech-layer-card { grid-template-columns: 1fr; }
  .tech-layer-card:nth-child(even) .tech-layer-copy,
  .tech-layer-card:nth-child(even) .tech-card-visual { order: initial; }
  .tech-card-visual,
  .tech-layer-card:nth-child(even) .tech-card-visual {
    border-left: 0;
    border-right: 0;
    border-top: 1px solid var(--border-dark);
  }
  .tech-visual-placeholder { min-height: 260px; }
  .footer-top { grid-template-columns: 1fr; gap: 30px; }
  .footer-back-home { margin-top: 16px; padding-top: 0; justify-content: flex-start; }
  .footer-back-btn { width: 100%; max-width: 280px; }
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  .hero-ctas { flex-direction: column; }
  .hero { min-height: 70vh; }
  .spec-row { grid-template-columns: 1fr; }
  .spec-key { border-right: none; border-bottom: 1px solid var(--border-dark); }
}

/* --- FOCUS --- */
*:focus-visible { outline: 3px solid var(--red); outline-offset: 2px; }

/* --- UTILITY --- */
.mt-0 { margin-top: 0; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-48 { margin-top: 48px; }
.mt-64 { margin-top: 64px; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-48 { margin-bottom: 48px; }
.max-w-600 { max-width: 600px; }
.max-w-720 { max-width: 720px; }
.text-muted { color: var(--text-muted); }
.text-18 { font-size: 18px; }
.mono-sm { font-family: var(--font-mono); font-size: 11px; color: var(--red); }

/* --- VALUE CARD (from DATCS) --- */
.value-card{background:var(--bg-light);padding:48px 32px;transition:background var(--transition);cursor:default}
.value-card:hover{background:var(--bg-white)}
.value-icon{width:44px;height:44px;background:rgba(196,30,58,.07);border:1px solid rgba(196,30,58,.15);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:24px}
.value-name{font-family:var(--font-display);font-weight:800;font-size:20px;letter-spacing:-.015em;color:var(--text-primary);margin-bottom:6px}
.value-vn{font-family:var(--font-label);font-size:10px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--red);margin-bottom:16px}
.value-card p{font-size:14px;color:var(--text-muted);line-height:1.65;max-width:100%}

/* --- RESPONSIVE HARDENING --- */
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  min-width: 0;
}

.container,
.container-narrow {
  width: 100%;
}

section,
main,
footer,
nav,
.grid-2,
.grid-3,
.grid-4,
.cols-2,
.cols-3,
.cols-4,
.tile-grid,
.stat-block,
.solution-pillars,
.signal-grid,
.product-categories,
.customer-grid,
.procurement-flow,
.app-overview-grid,
.op-usecase-grid,
.contact-flows,
.platform-grid,
.form-grid,
.token-grid,
.tech-layer-card {
  min-width: 0;
}

.nav-hamburger {
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
}

.nav-hamburger:hover {
  background: rgba(255,255,255,0.08);
}

.nav-hamburger.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-hamburger.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-mobile-drawer {
  position: fixed;
  inset: 64px 0 auto 0;
  z-index: 99;
  display: none;
  max-height: calc(100dvh - 64px);
  overflow-y: auto;
  background: rgba(11,14,19,0.98);
  border-bottom: 1px solid var(--border-dark);
  padding: 16px 20px 24px;
  box-shadow: 0 28px 70px rgba(0,0,0,0.42);
}

.nav-mobile-drawer.open {
  display: block;
}

.nav-mobile-drawer .nav-link,
.nav-mobile-drawer .nav-cta {
  display: flex;
  width: 100%;
  min-height: 48px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  border-radius: 0;
  padding: 14px 0;
  color: var(--text-inv);
  background: transparent;
  text-align: left;
}

.nav-mobile-drawer .nav-link::after,
.nav-mobile-drawer .nav-cta::after {
  content: "->";
  color: var(--red);
  font-family: var(--font-mono);
  font-size: 11px;
}

.nav-mobile-drawer .nav-cta {
  margin-top: 8px;
  border-bottom: 0;
  color: #fff;
}

body.nav-drawer-open {
  overflow: hidden;
}

@media (max-width: 1180px) {
  .nav {
    padding: 0 20px;
  }

  .nav-links {
    gap: 2px;
  }

  .nav-link {
    padding: 8px 10px;
    letter-spacing: 0.08em;
  }

  .nav-cta {
    padding: 9px 14px;
  }
}

@media (max-width: 1024px) {
  .container,
  .container-narrow {
    padding-inline: 28px;
  }

  h1 { font-size: 56px; }
  h2 { font-size: 42px; }

  .grid-3,
  .cols-3,
  [style*="repeat(3,1fr)"],
  [style*="repeat(4,1fr)"] {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  }

  .grid-4,
  .cols-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .tech-layer-card {
    grid-template-columns: minmax(0, 0.95fr) minmax(280px, 1.05fr);
  }
}

@media (max-width: 860px) {
  .nav {
    height: 64px;
    padding: 0 16px;
  }

  .nav-logo {
    font-size: 17px;
  }

  .nav-links,
  .nav-right,
  .nav-cta {
    display: none !important;
  }

  .nav-hamburger {
    display: flex !important;
  }

  .container,
  .container-narrow {
    padding-inline: 20px;
  }

  h1 { font-size: 40px; line-height: 1.05; }
  h2 { font-size: 32px; line-height: 1.12; }
  h3 { font-size: 24px; line-height: 1.18; }

  p {
    max-width: 100%;
  }

  .section,
  .section-lg,
  .technology-overview,
  .install-section,
  [style*="padding:96px 0"],
  [style*="padding:80px 0"],
  [style*="padding:120px 0"] {
    padding-top: 64px !important;
    padding-bottom: 64px !important;
  }

  .page-hero,
  .hero,
  .install-hero,
  [style*="padding:140px 0 80px"],
  [style*="padding:140px 0 88px"] {
    padding-top: 96px !important;
    padding-bottom: 56px !important;
    min-height: auto !important;
  }

  [style*="padding-top:140px"] {
    padding-top: 104px !important;
  }

  [style*="padding-bottom:80px"],
  [style*="padding-bottom:88px"] {
    padding-bottom: 56px !important;
  }

  .grid-2,
  .grid-3,
  .grid-4,
  .cols-2,
  .cols-3,
  .cols-4,
  .tile-grid,
  .stat-block,
  .solution-pillars,
  .signal-grid,
  .product-categories,
  .customer-grid,
  .procurement-flow,
  .app-overview-grid,
  .op-usecase-grid,
  .contact-flows,
  .platform-grid,
  .form-grid,
  .token-grid,
  [style*="repeat(2,1fr)"],
  [style*="repeat(3,1fr)"],
  [style*="repeat(4,1fr)"],
  [style*="grid-template-columns:1fr 1fr"],
  [style*="grid-template-columns: 1fr 1fr"] {
    grid-template-columns: 1fr !important;
  }

  [style*="gap:80px"] { gap: 36px !important; }
  [style*="gap:64px"] { gap: 28px !important; }
  [style*="gap:56px"] { gap: 28px !important; }
  [style*="gap:48px"] { gap: 24px !important; }
  [style*="margin-bottom:64px"] { margin-bottom: 36px !important; }
  [style*="margin-bottom:56px"] { margin-bottom: 32px !important; }
  [style*="margin-top:56px"] { margin-top: 32px !important; }

  [style*="padding:48px 40px"],
  [style*="padding:48px 36px"],
  [style*="padding:44px 32px"],
  [style*="padding:40px 36px"],
  [style*="padding:40px 32px"],
  [style*="padding:36px 40px"],
  [style*="padding:36px 32px"],
  [style*="padding:32px 36px"] {
    padding: 28px 22px !important;
  }

  [style*="font-size:20px"],
  [style*="font-size:19px"],
  [style*="font-size:18px"] {
    font-size: 16px !important;
  }

  .btn,
  [style*="display:flex"][style*="gap:14px"] > .btn {
    width: 100%;
    justify-content: center;
    white-space: normal;
    text-align: center;
  }

  .hero-ctas,
  .install-hero-actions,
  .doc-ctas {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-stats,
  .install-stat-row,
  [style*="display:flex"][style*="gap:48px"][style*="flex-wrap:wrap"] {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px !important;
  }

  .hero-stat-value,
  .install-stat-value {
    font-size: 28px;
  }

  .tech-layer-card,
  .tech-overview-head,
  .tech-positioning-card {
    grid-template-columns: 1fr !important;
  }

  .tech-layer-copy {
    padding: 30px 24px;
  }

  .tech-layer-card {
    min-height: 0;
  }

  .tech-layer-card:nth-child(even) .tech-layer-copy,
  .tech-layer-card:nth-child(even) .tech-card-visual {
    order: initial;
  }

  .tech-card-visual,
  .tech-layer-card:nth-child(even) .tech-card-visual {
    min-height: 240px;
    height: auto;
    border-left: 0;
    border-right: 0;
    border-top: 1px solid var(--border-dark);
  }

  .tech-card-image-frame {
    aspect-ratio: 16 / 10;
  }

  .tech-positioning-card {
    padding: 28px 24px;
    gap: 14px;
  }

  .tech-positioning-card p {
    font-size: 17px;
  }

  .spec-row,
  .timeline-item {
    grid-template-columns: 1fr !important;
    gap: 12px;
  }

  .spec-key {
    border-right: 0;
    border-bottom: 1px solid var(--border-dark);
  }

  .timeline::before {
    left: 6px;
  }

  .timeline-item {
    padding-left: 28px;
  }

  .timeline-marker {
    position: absolute;
    left: 0;
    top: 4px;
    padding: 0;
  }

  table {
    min-width: 680px;
  }

  [style*="overflow-x:auto"] {
    margin-inline: -20px;
    padding-inline: 20px;
    scrollbar-width: thin;
  }

  .footer {
    padding: 48px 20px 32px;
  }

  .footer-top {
    grid-template-columns: 1fr !important;
    gap: 34px;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .container,
  .container-narrow {
    padding-inline: 16px;
  }

  h1 { font-size: 36px; }
  h2 { font-size: 30px; }

  .label,
  .breadcrumb {
    letter-spacing: 0.1em;
  }

  .nav {
    padding-inline: 12px;
  }

  .nav-mobile-drawer {
    padding-inline: 16px;
  }

  .hero-stats,
  .install-stat-row,
  [style*="display:flex"][style*="gap:48px"][style*="flex-wrap:wrap"] {
    grid-template-columns: 1fr;
  }

  .platform-card,
  .form-panel,
  .token-panel,
  .notice-card,
  .value-card,
  .tile-grid .cell,
  .tile-grid.dark .cell {
    padding: 24px 20px;
  }

  .tech-visual-placeholder {
    min-height: 220px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}