/* ============================================================
   INERTUM Portal — Direction A · Industrial Deep Tech
   Единый CSS для всех страниц портала.
   v2.0 · 2026-05-09
   ============================================================ */

/* Tokens */
:root {
  --bg-base:        #0A0B0D;
  --bg-elev:        #13151A;
  --bg-elev-2:      #1C1F26;
  --bg-elev-3:      #242833;

  --ink-primary:    #F2F4F7;
  --ink-secondary:  #C7CCD6;
  --ink-muted:      #8A93A6;
  --ink-disabled:   #4F5566;

  --stroke:         #2A2F3A;
  --stroke-strong:  #3A4150;

  --accent-argon:   #5BC0EB;
  --accent-argon-2: #4AA8D1;
  --accent-warn:    #E8A33D;
  --accent-danger:  #E5685A;
  --success:        #3FB984;

  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --mono: 'JetBrains Mono', 'Geist Mono', ui-monospace, Consolas, monospace;

  --radius-sm: 4px;
  --radius:    6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  background: var(--bg-base);
  color: var(--ink-primary);
  font: 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent-argon); text-decoration: none; transition: color .15s; }
a:hover { color: #82d3f3; }

img, svg { max-width: 100%; display: block; }
hr { border: 0; border-top: 1px solid var(--stroke); margin: 32px 0; }

/* Background grid pattern */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(91, 192, 235, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91, 192, 235, 0.025) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 30%, transparent 80%);
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}
.container-narrow {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ===== Header / nav ===== */
header.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 11, 13, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--stroke);
}
.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}
.logo {
  font: 700 17px/1 var(--sans);
  letter-spacing: -0.01em;
  color: var(--ink-primary);
}
.logo .dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent-argon);
  margin: 0 6px 1px 0;
  vertical-align: middle;
  box-shadow: 0 0 12px rgba(91, 192, 235, 0.6);
}
nav.menu a {
  color: var(--ink-muted);
  margin-left: 32px;
  font-size: 14px;
  font-weight: 500;
}
nav.menu a:hover { color: var(--ink-primary); }
.lang {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-muted);
}

/* ===== Hero ===== */
.hero { padding: 96px 0 80px; position: relative; }
.hero .grid-2 {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: center;
}
.eyebrow {
  font: 500 11px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent-argon);
  margin-bottom: 24px;
}
.eyebrow .dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent-argon);
  margin-right: 8px;
  vertical-align: middle;
  box-shadow: 0 0 8px var(--accent-argon);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.4} }

h1, h2, h3, h4, h5 {
  color: var(--ink-primary);
  margin-top: 0;
}
h1 {
  font: 600 76px/1.05 var(--sans);
  margin: 0 0 24px;
  letter-spacing: -0.02em;
  background: linear-gradient(180deg, #ffffff 0%, #b8c0cc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
h1 em {
  font-style: normal;
  background: linear-gradient(180deg, #5BC0EB 0%, #82d3f3 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p.lede {
  font-size: 19px;
  color: var(--ink-secondary);
  max-width: 600px;
  margin: 0 0 36px;
}
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: var(--radius);
  font: 500 14px/1 var(--sans);
  cursor: pointer;
  border: 1px solid;
  transition: all .2s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent-argon);
  color: var(--bg-base);
  border-color: var(--accent-argon);
  box-shadow: 0 0 24px rgba(91, 192, 235, 0.2);
}
.btn-primary:hover {
  box-shadow: 0 0 36px rgba(91, 192, 235, 0.4);
  transform: translateY(-1px);
  color: var(--bg-base);
}
.btn-ghost {
  background: transparent;
  color: var(--ink-primary);
  border-color: var(--stroke);
}
.btn-ghost:hover {
  border-color: var(--accent-argon);
  color: var(--accent-argon);
}
.btn-danger {
  background: transparent;
  color: var(--accent-danger);
  border-color: var(--accent-danger);
}
.btn-danger:hover {
  background: var(--accent-danger);
  color: var(--bg-base);
}

/* ===== 3D Capsule (hero visual) ===== */
.capsule-3d {
  position: relative;
  aspect-ratio: 1;
  max-width: 480px;
  margin: 0 auto;
}
.capsule-orb {
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, rgba(91, 192, 235, 0.4) 0%, rgba(91, 192, 235, 0.1) 30%, transparent 70%);
  border: 1px solid var(--stroke);
  box-shadow: inset 0 0 80px rgba(91, 192, 235, 0.15), 0 0 100px rgba(91, 192, 235, 0.2);
  animation: float 6s ease-in-out infinite;
}
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-12px)} }
.capsule-particles { position: absolute; inset: 0; pointer-events: none; }
.particle {
  position: absolute;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--accent-argon);
  box-shadow: 0 0 8px var(--accent-argon);
  opacity: 0.6;
  animation: drift 8s linear infinite;
}
.particle:nth-child(1) { top: 20%; left: 15%; animation-delay: 0s; }
.particle:nth-child(2) { top: 60%; left: 70%; animation-delay: 1s; }
.particle:nth-child(3) { top: 35%; left: 80%; animation-delay: 2s; }
.particle:nth-child(4) { top: 75%; left: 30%; animation-delay: 3s; }
.particle:nth-child(5) { top: 15%; left: 60%; animation-delay: 4s; }
@keyframes drift { 0%{transform:translate(0,0)} 50%{transform:translate(20px,-15px)} 100%{transform:translate(0,0)} }
.capsule-rings {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle, transparent 38%, var(--accent-argon) 38.5%, transparent 39%),
    radial-gradient(circle, transparent 48%, rgba(91,192,235,0.3) 48.5%, transparent 49%);
  opacity: 0.4;
}

/* ===== Metrics ticker ===== */
.ticker {
  border-top: 1px solid var(--stroke);
  border-bottom: 1px solid var(--stroke);
  padding: 24px 0;
  margin-top: 80px;
  background: rgba(91, 192, 235, 0.02);
}
.ticker-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.metric .num {
  font: 500 36px/1 var(--mono);
  color: var(--accent-argon);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.metric .lbl {
  font: 400 11px/1.4 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
  margin-top: 6px;
}

/* ===== Sections ===== */
section {
  padding: 96px 0;
  border-top: 1px solid var(--stroke);
  position: relative;
  z-index: 1;
}
section.no-border { border-top: 0; }
.section-header { margin-bottom: 56px; }
.section-header .num,
.section-num {
  font: 500 11px/1 var(--mono);
  color: var(--accent-argon);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.section-header h2 {
  font: 600 44px/1.2 var(--sans);
  margin: 0 0 16px;
  letter-spacing: -0.01em;
  max-width: 720px;
}
.section-header p {
  font-size: 18px;
  color: var(--ink-secondary);
  max-width: 600px;
  margin: 0;
}

/* ===== Tech / status / problem cards ===== */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.tech-card {
  background: var(--bg-elev);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all .2s;
  position: relative;
  overflow: hidden;
}
.tech-card:hover {
  border-color: var(--accent-argon);
  transform: translateY(-2px);
}
.tech-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 0; height: 1px;
  background: var(--accent-argon);
  transition: width .3s;
}
.tech-card:hover::before { width: 100%; }
.tech-card .ic {
  width: 44px; height: 44px;
  border-radius: var(--radius);
  background: var(--bg-elev-2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-argon);
  margin-bottom: 16px;
}
.tech-card .ic svg { width: 22px; height: 22px; }
.tech-card h3 {
  font: 600 18px/1.3 var(--sans);
  margin: 0 0 8px;
}
.tech-card p {
  font-size: 14px;
  color: var(--ink-secondary);
  margin: 0;
  line-height: 1.6;
}
.tech-card code {
  display: inline-block;
  font: 11px/1.4 var(--mono);
  color: var(--accent-argon);
  background: rgba(91,192,235,0.08);
  padding: 3px 8px;
  border-radius: 3px;
  margin-top: 12px;
  letter-spacing: 0.04em;
}

/* ===== Stack diagram ===== */
.stack {
  background: var(--bg-elev);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-xl);
  padding: 40px;
  max-width: 720px;
  margin: 0 auto;
}
.stack-layer {
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin: 8px 0;
  position: relative;
  transition: all .2s;
}
.stack-layer:hover {
  border-color: var(--accent-argon);
  background: rgba(91,192,235,0.04);
}
.stack-layer .lbl {
  font: 500 10px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-argon);
  margin-bottom: 6px;
}
.stack-layer .text {
  font-size: 14px;
  color: var(--ink-primary);
  line-height: 1.55;
}

/* ===== Segments ===== */
.seg-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.seg-card {
  background: var(--bg-elev);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
  transition: all .2s;
}
.seg-card:hover {
  border-color: var(--accent-argon);
  transform: translateY(-2px);
}
.seg-card .tag {
  font: 500 10px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-warn);
  margin-bottom: 12px;
}
.seg-card h4 {
  font: 600 17px/1.3 var(--sans);
  margin: 0 0 6px;
}
.seg-card p {
  font-size: 13px;
  color: var(--ink-secondary);
  margin: 0 0 14px;
  line-height: 1.55;
}
.seg-card .price {
  font: 500 14px/1 var(--mono);
  color: var(--accent-argon);
  font-variant-numeric: tabular-nums;
}
.seg-card.special {
  background: rgba(232,163,61,0.05);
  border-color: rgba(232,163,61,0.3);
}
.seg-card.special .tag,
.seg-card.special .price { color: var(--accent-warn); }

/* ===== Lists & prose ===== */
ul.bullets, ol.bullets {
  padding-left: 0;
  list-style: none;
}
ul.bullets li, ol.bullets li {
  position: relative;
  padding: 8px 0 8px 28px;
  font-size: 16px;
  color: var(--ink-secondary);
  line-height: 1.6;
  border-bottom: 1px solid var(--stroke);
}
ul.bullets li:last-child, ol.bullets li:last-child { border-bottom: 0; }
ul.bullets li::before {
  content: '';
  position: absolute;
  left: 0; top: 18px;
  width: 12px; height: 1px;
  background: var(--accent-argon);
}
ol.bullets { counter-reset: ol-counter; }
ol.bullets li { counter-increment: ol-counter; }
ol.bullets li::before {
  content: counter(ol-counter, decimal-leading-zero);
  position: absolute;
  left: 0; top: 8px;
  font: 500 11px/1.6 var(--mono);
  color: var(--accent-argon);
  letter-spacing: 0.06em;
  background: none;
  width: auto; height: auto;
}
ul.bullets li strong, ol.bullets li strong {
  color: var(--ink-primary);
  font-weight: 600;
}

/* ===== Team grid ===== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.team-card {
  background: var(--bg-elev);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.team-card .role {
  font: 500 10px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-argon);
  margin-bottom: 12px;
}
.team-card.hiring .role { color: var(--accent-warn); }
.team-card h4 {
  font: 600 17px/1.3 var(--sans);
  margin: 0 0 8px;
}
.team-card p {
  font-size: 13px;
  color: var(--ink-secondary);
  margin: 0;
  line-height: 1.55;
}

/* ===== CTA block ===== */
.cta-block {
  background: linear-gradient(135deg, var(--bg-elev) 0%, var(--bg-elev-2) 100%);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-xl);
  padding: 72px 56px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-block::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 0%, rgba(91,192,235,0.12) 0%, transparent 60%);
  pointer-events: none;
}
.cta-block > * { position: relative; }
.cta-block h2 {
  font: 600 44px/1.2 var(--sans);
  margin: 0 0 16px;
}
.cta-block p {
  font-size: 18px;
  color: var(--ink-secondary);
  margin: 0 auto 32px;
  max-width: 640px;
}

/* ===== Forms ===== */
.field {
  display: block;
  margin-bottom: 18px;
}
.field label {
  display: block;
  font: 500 11px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
  margin-bottom: 8px;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  background: var(--bg-elev-2);
  color: var(--ink-primary);
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  padding: 12px 14px;
  font: 14px/1.5 var(--sans);
  transition: border-color .15s;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent-argon);
}
.field textarea { min-height: 80px; resize: vertical; font-family: var(--mono); }
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

/* ===== Tables ===== */
table.dt {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
table.dt th,
table.dt td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--stroke);
}
table.dt th {
  font: 500 11px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
  background: var(--bg-elev-2);
}
table.dt td { color: var(--ink-secondary); font-family: var(--mono); }
table.dt tbody tr:hover { background: rgba(91,192,235,0.04); }

/* ===== Pills / chips ===== */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 100px;
  font: 500 11px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: 1px solid var(--stroke);
  color: var(--ink-secondary);
}
.pill.argon { color: var(--accent-argon); border-color: rgba(91,192,235,0.4); }
.pill.warn  { color: var(--accent-warn);  border-color: rgba(232,163,61,0.4); }
.pill.ok    { color: var(--success);      border-color: rgba(63,185,132,0.4); }
.pill.danger{ color: var(--accent-danger);border-color: rgba(229,104,90,0.4); }

/* ===== Footer ===== */
footer.site-footer {
  padding: 64px 0 32px;
  border-top: 1px solid var(--stroke);
  position: relative;
  z-index: 1;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}
footer h5 {
  font: 500 11px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
  margin: 0 0 12px;
}
footer a {
  color: var(--ink-muted);
  display: block;
  padding: 4px 0;
  font-size: 13px;
}
footer a:hover { color: var(--ink-primary); }
.copyright {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--stroke);
  font: 11px/1.4 var(--mono);
  color: var(--ink-muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== Auth gate (data room login) ===== */
.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  position: relative;
  z-index: 1;
}
.auth-card {
  background: linear-gradient(135deg, var(--bg-elev) 0%, var(--bg-elev-2) 100%);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-xl);
  padding: 48px;
  width: 100%;
  max-width: 480px;
  position: relative;
  overflow: hidden;
}
.auth-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 0%, rgba(91,192,235,0.1) 0%, transparent 60%);
  pointer-events: none;
}
.auth-card > * { position: relative; }
.auth-card h1 {
  font-size: 28px;
  background: none;
  color: var(--ink-primary);
  -webkit-text-fill-color: var(--ink-primary);
  margin-bottom: 8px;
}
.auth-card p.lede {
  font-size: 14px;
  color: var(--ink-muted);
  margin-bottom: 32px;
}
.auth-error {
  background: rgba(229,104,90,0.1);
  border: 1px solid rgba(229,104,90,0.4);
  color: var(--accent-danger);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 18px;
}

/* ===== Doc viewer (sidebar layout) ===== */
.viewer-shell {
  display: grid;
  grid-template-columns: 320px 1fr;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}
.viewer-sidebar {
  background: var(--bg-elev);
  border-right: 1px solid var(--stroke);
  padding: 24px 20px;
  overflow-y: auto;
  max-height: 100vh;
  position: sticky;
  top: 0;
}
.viewer-sidebar h5 {
  font: 500 11px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
  margin: 24px 0 8px;
}
.viewer-sidebar h5:first-child { margin-top: 0; }
.viewer-sidebar a {
  display: block;
  padding: 8px 12px;
  border-radius: var(--radius);
  font-size: 13px;
  color: var(--ink-secondary);
  border: 1px solid transparent;
  margin-bottom: 4px;
}
.viewer-sidebar a:hover {
  background: var(--bg-elev-2);
  color: var(--ink-primary);
}
.viewer-sidebar a.active {
  background: rgba(91,192,235,0.1);
  border-color: rgba(91,192,235,0.3);
  color: var(--accent-argon);
}
.viewer-content {
  padding: 32px 48px;
  max-height: 100vh;
  overflow-y: auto;
}
.viewer-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 20px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--stroke);
}

/* Markdown rendered inside viewer */
.md-body {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-secondary);
  max-width: 820px;
}
.md-body h1, .md-body h2, .md-body h3, .md-body h4 {
  color: var(--ink-primary);
  letter-spacing: -0.01em;
}
.md-body h1 {
  font-size: 32px; line-height: 1.2; margin: 0 0 24px;
  background: none; color: var(--ink-primary); -webkit-text-fill-color: var(--ink-primary);
}
.md-body h2 { font-size: 24px; margin: 40px 0 16px; }
.md-body h3 { font-size: 19px; margin: 32px 0 12px; }
.md-body h4 { font-size: 16px; margin: 24px 0 8px; }
.md-body p, .md-body li { color: var(--ink-secondary); }
.md-body strong { color: var(--ink-primary); }
.md-body code {
  font: 13px/1.4 var(--mono);
  background: var(--bg-elev-2);
  border: 1px solid var(--stroke);
  border-radius: 3px;
  padding: 1px 6px;
  color: var(--accent-argon);
}
.md-body pre {
  background: var(--bg-elev);
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  padding: 16px;
  overflow-x: auto;
}
.md-body pre code { border: 0; padding: 0; background: transparent; color: var(--ink-primary); }
.md-body blockquote {
  border-left: 2px solid var(--accent-argon);
  padding: 0 0 0 16px;
  margin: 16px 0;
  color: var(--ink-muted);
  font-style: italic;
}
.md-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 16px 0;
}
.md-body table th, .md-body table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--stroke);
}
.md-body table th {
  font-weight: 600;
  color: var(--ink-primary);
  background: var(--bg-elev);
}
.md-body a { color: var(--accent-argon); }
.md-body a:hover { text-decoration: underline; }

/* ===== Mock banner (only on mockup pages) ===== */
.mock-banner {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: var(--accent-warn); color: #0A0B0D;
  padding: 8px 24px; text-align: center; font-size: 12px;
  font-family: var(--mono); font-weight: 600; letter-spacing: 0.04em;
}
.mock-banner a { color: #0A0B0D; text-decoration: underline; }

/* ===== Utilities ===== */
.muted { color: var(--ink-muted); }
.secondary { color: var(--ink-secondary); }
.argon { color: var(--accent-argon); }
.warn  { color: var(--accent-warn); }
.danger{ color: var(--accent-danger); }
.mono { font-family: var(--mono); }
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mb-0 { margin-bottom: 0; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.hidden { display: none !important; }

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--stroke); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--stroke-strong); }

/* ===== Selection ===== */
::selection { background: rgba(91,192,235,0.3); color: var(--ink-primary); }

/* ===== Print ===== */
@media print {
  body::before, .mock-banner, header.nav, footer.site-footer { display: none !important; }
  body { background: #fff; color: #000; }
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .viewer-shell { grid-template-columns: 280px 1fr; }
}
@media (max-width: 900px) {
  .hero { padding: 64px 0 48px; }
  .hero .grid-2 { grid-template-columns: 1fr; }
  h1 { font-size: 44px; }
  .ticker-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .tech-grid, .seg-grid { grid-template-columns: 1fr; }
  section { padding: 64px 0; }
  .section-header h2 { font-size: 32px; }
  .cta-block { padding: 48px 32px; }
  .cta-block h2 { font-size: 32px; }
  nav.menu { display: none; }
  .viewer-shell { grid-template-columns: 1fr; }
  .viewer-sidebar { position: static; max-height: none; }
  .viewer-content { padding: 24px; }
}
@media (max-width: 600px) {
  .container, .container-narrow { padding: 0 16px; }
  h1 { font-size: 36px; }
  .field-row { grid-template-columns: 1fr; }
  .auth-card { padding: 32px 24px; }
}