/* ============ altv cloud — design tokens ============ */
:root {
  --font-sans: 'Geist', ui-sans-serif, system-ui, sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --accent: #ff4a1c;
  --accent-hover: #ff5f34;
  --accent-soft: rgba(255, 74, 28, 0.12);

  /* dark (default) */
  --bg: #0a0a0b;
  --bg-1: #111113;
  --bg-2: #17171a;
  --bg-3: #1e1e22;
  --border: #26262a;
  --border-strong: #3a3a40;
  --text: #ededee;
  --text-muted: #8a8a92;
  --text-dim: #55555c;
  --grid: rgba(255,255,255,0.04);
}

[data-theme="light"] {
  --bg: #fafaf9;
  --bg-1: #ffffff;
  --bg-2: #f4f4f1;
  --bg-3: #ebebe7;
  --border: #e5e5e2;
  --border-strong: #cfcfca;
  --text: #0a0a0b;
  --text-muted: #6b6b70;
  --text-dim: #a5a5a8;
  --grid: rgba(0,0,0,0.04);
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

html[data-theme] body,
body {
  font-family: var(--font-sans);
  background-color: var(--bg) !important;
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "ss01", "cv11";
  transition: background 200ms ease, color 200ms ease;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

main {
  min-width: 0;
  overflow-x: hidden;
}
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

/* full-page intro: fade from black on first paint */
.page-enter {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: #000;
  opacity: 1;
  pointer-events: auto;
  transition: opacity 0.85s ease;
  will-change: opacity;
}
.page-enter.page-enter--done {
  opacity: 0;
  pointer-events: none;
}
@media (prefers-reduced-motion: reduce) {
  .page-enter {
    transition-duration: 0.01ms;
  }
}

/* ============ utilities ============ */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  min-width: 0;
  width: 100%;
}

.mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--accent);
}

/* section defaults */
section {
  padding: 120px 0;
  border-top: 1px solid var(--border);
  position: relative;
}

h1, h2, h3 { letter-spacing: -0.02em; line-height: 1.05; font-weight: 500; }
h2 { font-size: clamp(32px, 4vw, 56px); margin-bottom: 24px; text-wrap: balance; }
h3 { font-size: 20px; font-weight: 500; letter-spacing: -0.01em; }

p { color: var(--text-muted); text-wrap: pretty; }

/* ============ nav ============ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  padding: 16px 32px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: color-mix(in oklab, var(--bg) 75%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color 200ms ease;
}
.nav.scrolled { border-bottom-color: var(--border); }

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-width: 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: -0.02em;
  font-weight: 500;
  min-width: 0;
  flex-shrink: 1;
}
.logo > span:last-child {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.logo-mark {
  width: 22px; height: 22px;
  background: var(--accent);
  position: relative;
  clip-path: polygon(0 0, 100% 0, 100% 60%, 60% 60%, 60% 100%, 0 100%);
}

.nav-links {
  display: flex;
  gap: 32px;
}
.nav-links a {
  font-size: 13px;
  color: var(--text-muted);
  transition: color 150ms;
}
.nav-links a:hover { color: var(--text); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon-btn {
  width: 36px; height: 36px;
  border-radius: 6px;
  display: grid; place-items: center;
  color: var(--text-muted);
  border: 1px solid transparent;
  transition: all 150ms;
}
.icon-btn:hover { color: var(--text); background: var(--bg-2); border-color: var(--border); }

.lang-toggle {
  display: flex;
  font-family: var(--font-mono);
  font-size: 11px;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}
.lang-toggle button {
  padding: 8px 10px;
  color: var(--text-muted);
  transition: all 150ms;
}
.lang-toggle button.active { background: var(--bg-2); color: var(--text); }

/* hamburger — visible only on small screens (see media query below) */
.nav-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 6px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: border-color 150ms, background 150ms;
  flex-shrink: 0;
}
.nav-menu-toggle:hover {
  background: var(--bg-2);
  border-color: var(--border);
}
.nav-menu-toggle-bar {
  display: block;
  width: 18px;
  height: 1.5px;
  margin: 0 auto;
  background: currentColor;
  border-radius: 1px;
  transition: transform 300ms ease, opacity 200ms ease;
}
body.nav-drawer-open .nav-menu-toggle .nav-menu-toggle-bar:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
body.nav-drawer-open .nav-menu-toggle .nav-menu-toggle-bar:nth-child(2) {
  opacity: 0;
}
body.nav-drawer-open .nav-menu-toggle .nav-menu-toggle-bar:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* mobile drawer */
.nav-drawer {
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
  overflow: hidden;
}
.nav-drawer[aria-hidden="false"] {
  pointer-events: auto;
}
.nav-drawer-backdrop {
  position: absolute;
  inset: 0;
  background: color-mix(in oklab, var(--bg) 55%, black);
  opacity: 0;
  transition: opacity 320ms cubic-bezier(0.4, 0, 0.2, 1);
}
.nav-drawer-panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(100%, 360px);
  height: 100%;
  background: color-mix(in oklab, var(--bg) 92%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-left: 1px solid var(--border);
  box-shadow: none;
  transform: translateX(100%);
  transition: transform 320ms cubic-bezier(0.4, 0, 0.2, 1), box-shadow 320ms cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
}
.nav-drawer-panel-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 20px 20px 28px;
  overflow-y: auto;
}
.nav-drawer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.nav-drawer-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.nav-drawer-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.nav-drawer-link {
  font-size: 15px;
  color: var(--text-muted);
  padding: 14px 12px;
  border-radius: 6px;
  opacity: 0;
  transform: translateY(10px);
  transition: color 150ms ease, background 150ms ease, opacity 280ms cubic-bezier(0.4, 0, 0.2, 1), transform 280ms cubic-bezier(0.4, 0, 0.2, 1);
}
.nav-drawer-link:hover {
  color: var(--text);
  background: var(--bg-2);
}
.nav-drawer-actions {
  margin-top: auto;
  padding-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: stretch;
}
.nav-drawer-actions .lang-toggle {
  align-self: flex-start;
}
.nav-drawer-actions .icon-btn {
  align-self: flex-start;
}
.nav-drawer-actions .btn {
  justify-content: center;
  white-space: normal;
  text-align: center;
}
body.nav-drawer-open .nav-drawer-backdrop {
  opacity: 1;
}
body.nav-drawer-open .nav-drawer-panel {
  transform: translateX(0);
  box-shadow: -24px 0 48px rgba(0, 0, 0, 0.35);
}
body.nav-drawer-open .nav-drawer-link {
  opacity: 1;
  transform: translateY(0);
}
body.nav-drawer-open .nav-drawer-actions {
  opacity: 1;
  transform: translateY(0);
}
body:not(.nav-drawer-open) .nav-drawer-link {
  opacity: 0;
  transform: translateY(10px);
}
body:not(.nav-drawer-open) .nav-drawer-actions {
  opacity: 0;
  transform: translateY(8px);
}
.nav-drawer-actions {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 280ms cubic-bezier(0.4, 0, 0.2, 1), transform 280ms cubic-bezier(0.4, 0, 0.2, 1);
}

@media (prefers-reduced-motion: reduce) {
  .nav-drawer-backdrop,
  .nav-drawer-panel,
  .nav-drawer-link,
  .nav-drawer-actions {
    transition-duration: 0.01ms !important;
  }
  .nav-menu-toggle-bar {
    transition-duration: 0.01ms !important;
  }
  .nav-drawer-link {
    opacity: 1;
    transform: none;
  }
  body.nav-drawer-open .nav-drawer-link {
    opacity: 1;
    transform: none;
  }
  .nav-drawer-actions {
    opacity: 1;
    transform: none;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  transition: all 150ms ease;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-ghost {
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover { background: var(--bg-2); border-color: var(--border-strong); }
.btn-lg { padding: 14px 22px; font-size: 14px; }

/* ============ hero ============ */
.hero {
  padding-top: 140px;
  padding-bottom: 120px;
  border-top: none;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 80px;
  align-items: start;
  min-width: 0;
}
@media (min-width: 960px) {
  .hero-inner.layout-split { grid-template-columns: 1.2fr 1fr; }
}

.hero-copy { max-width: 760px; min-width: 0; }

/* hero enter sequence — opacity-only fades between steps */
#hero[data-hero-enter="pending"] #hero-status,
#hero[data-hero-enter="pending"] #hero-eyebrow,
#hero[data-hero-enter="pending"] #hero-sub,
#hero[data-hero-enter="pending"] .hero-ctas,
#hero[data-hero-enter="pending"] .hero-visual,
#hero[data-hero-enter="pending"] #hero-meta {
  opacity: 0;
}
.hero-intro-item.hero-enter-pending,
.hero-visual.hero-enter-pending,
#hero-meta.hero-enter-pending {
  opacity: 0;
}
.hero-intro-item.hero-enter-visible,
.hero-visual.hero-enter-visible,
#hero-meta.hero-enter-visible {
  opacity: 1;
  transition: opacity 550ms cubic-bezier(0.4, 0, 0.2, 1);
}
#hero[data-hero-enter="done"] .hero-intro-item,
#hero[data-hero-enter="done"] .hero-visual,
#hero[data-hero-enter="done"] #hero-meta {
  opacity: 1;
}
@media (prefers-reduced-motion: reduce) {
  .hero-intro-item.hero-enter-pending,
  .hero-visual.hero-enter-pending,
  #hero-meta.hero-enter-pending {
    opacity: 1;
    transition: none;
  }
  .hero-intro-item.hero-enter-visible,
  .hero-visual.hero-enter-visible,
  #hero-meta.hero-enter-visible {
    transition: none;
  }
}

.hero h1 {
  font-size: clamp(40px, 6vw, 84px);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 0.98;
  margin: 16px 0 32px;
  text-wrap: balance;
}
.hero h1 .accent {
  color: var(--accent);
  font-style: italic;
  font-weight: 400;
}

.hero-sub {
  font-size: 18px;
  max-width: 580px;
  color: var(--text-muted);
  margin-bottom: 40px;
  line-height: 1.55;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  max-width: 720px;
}
.hero-meta-item .label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 6px;
}
.hero-meta-item .value {
  font-size: 14px;
  color: var(--text);
}

/* hero status pill */
.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px 6px 10px;
  border: 1px solid var(--border);
  background: var(--bg-1);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--text);
  margin-bottom: 24px;
  max-width: 100%;
  flex-wrap: wrap;
  row-gap: 4px;
}
.hero-status .hs-label {
  color: var(--text-muted);
  min-width: 0;
  line-height: 1.35;
  overflow-wrap: anywhere;
}
.hero-status .hs-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.6);
  animation: hs-pulse 1.8s ease-out infinite;
}
[data-theme="light"] .hero-status .hs-dot { background: #16a34a; }
@keyframes hs-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.6); }
  70%  { box-shadow: 0 0 0 8px rgba(74, 222, 128, 0); }
  100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); }
}

/* hero visual (live workflow panel) */
.hero-visual {
  position: relative;
  border: 1px solid var(--border);
  background: var(--bg-1);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 20px 60px -20px rgba(0,0,0,0.4);
  font-family: var(--font-mono);
  font-size: 12px;
}
.hero-visual-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-2);
  min-width: 0;
}
.hv-dots { display: flex; gap: 6px; flex-shrink: 0; }
.hv-dots span { width: 10px; height: 10px; border-radius: 50%; background: var(--bg-3); }
.hv-title {
  color: var(--text-muted);
  font-size: 11px;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.hv-clock {
  flex-shrink: 0;
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.hero-visual-body {
  padding: 22px 22px 18px;
  min-height: 380px;
  display: flex;
  flex-direction: column;
  color: var(--text-muted);
}

/* workflow rows */
.wf-row {
  display: grid;
  grid-template-columns: 36px 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 10px 0;
  opacity: 0.35;
  transition: opacity 400ms ease;
}
.wf-row.active { opacity: 1; }
.wf-row.done { opacity: 0.85; }
.wf-icon {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  display: grid; place-items: center;
  color: var(--text-muted);
  transition: all 300ms ease;
}
.wf-icon svg { width: 18px; height: 18px; }
.wf-row.active .wf-icon {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}
.wf-row.done .wf-icon {
  border-color: var(--border-strong);
  color: var(--text);
}
.wf-body { min-width: 0; }
.wf-label {
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -0.005em;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.wf-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  color: var(--text-dim);
}
.wf-tag {
  font-family: var(--font-mono);
  padding: 2px 6px;
  border: 1px solid var(--border);
  border-radius: 3px;
  letter-spacing: 0.04em;
}
.wf-time {
  font-family: var(--font-mono);
  margin-left: auto;
  color: var(--text-muted);
}
.wf-status {
  width: 14px;
  display: grid;
  place-items: center;
}
.wf-pulse {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--border-strong);
  transition: background 200ms;
}
.wf-row.active .wf-pulse {
  background: var(--accent);
  animation: wf-pulse 1.2s ease-out infinite;
}
.wf-row.done .wf-pulse {
  background: #4ade80;
  animation: none;
}
[data-theme="light"] .wf-row.done .wf-pulse { background: #16a34a; }
@keyframes wf-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(255, 74, 28, 0.55); }
  70%  { box-shadow: 0 0 0 8px rgba(255, 74, 28, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 74, 28, 0); }
}

.wf-line {
  width: 1px;
  height: 14px;
  background: var(--border);
  margin-left: 17px;
}

.wf-summary {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px dashed var(--border);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.wf-sum-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.wf-sum-num {
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.wf-sum-l {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ============ services ============ */
.services-grid {
  margin-top: 64px;
}

.services-carousel {
  position: relative;
}
.services-viewport {
  overflow: hidden;
  border: 1px solid var(--border);
}
.services-track {
  display: flex;
  width: 100%;
  transition: transform 500ms cubic-bezier(0.77, 0, 0.175, 1);
  background: var(--border);
}
.services-page {
  flex: 0 0 100%;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
}
.services-page-3 {
  grid-template-columns: repeat(3, 1fr);
}
.services-page:not(.services-page-3) {
  grid-template-rows: repeat(2, 1fr);
}
.services-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
}
.services-arrow {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all 180ms;
}
.services-arrow:hover {
  border-color: var(--text);
  color: var(--text);
  background: var(--bg-1);
}
.services-dots {
  display: flex;
  gap: 8px;
  padding: 0 8px;
}
.services-dot {
  width: 24px;
  height: 3px;
  background: var(--border-strong);
  transition: all 200ms;
  border-radius: 1px;
}
.services-dot.active {
  background: var(--accent);
  width: 36px;
}
@media (max-width: 900px) {
  .services-page,
  .services-page-3 {
    grid-template-columns: 1fr;
  }
}

.service-card {
  background: var(--bg);
  padding: 36px 32px;
  position: relative;
  transition: background 200ms;
  cursor: default;
  min-height: 260px;
  display: flex;
  flex-direction: column;
}
.service-card:hover { background: var(--bg-1); }
.service-card .num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  margin-bottom: 24px;
  letter-spacing: 0.08em;
}
.service-card h3 {
  margin-bottom: 12px;
  font-size: 22px;
}
.service-card p {
  font-size: 14px;
  line-height: 1.55;
  margin-bottom: 20px;
  flex: 1;
}
.service-card .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}
.service-card .tag {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}
.service-card .arrow {
  position: absolute;
  top: 32px; right: 28px;
  color: var(--text-dim);
  transition: all 200ms;
}
.service-card:hover .arrow {
  color: var(--accent);
  transform: translate(2px, -2px);
}

/* ============ section header ============ */
.section-header {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-bottom: 24px;
  min-width: 0;
}
@media (min-width: 900px) {
  .section-header { grid-template-columns: 1.5fr 1fr; align-items: end; }
}
.section-header p { font-size: 16px; max-width: 480px; }

/* ============ architecture diagram ============ */
.arch-wrap {
  margin-top: 64px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background:
    linear-gradient(var(--grid) 1px, transparent 1px) 0 0 / 32px 32px,
    linear-gradient(90deg, var(--grid) 1px, transparent 1px) 0 0 / 32px 32px,
    var(--bg-1);
  position: relative;
  overflow: hidden;
}
.arch-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-1);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
}
.arch-toolbar .legend { display: flex; gap: 16px; align-items: center; }
.arch-toolbar .legend span { display: inline-flex; align-items: center; gap: 6px; }
.arch-toolbar .legend i {
  width: 8px; height: 8px; border-radius: 2px; background: var(--text-muted);
  font-style: normal;
}
.arch-toolbar .legend i.l-in { background: #6aa5ff; }
.arch-toolbar .legend i.l-core { background: var(--accent); }
.arch-toolbar .legend i.l-out { background: #8abf7a; }

.arch-canvas {
  position: relative;
  padding: 48px 32px;
  min-height: 520px;
}
.arch-svg {
  width: 100%;
  height: 520px;
  display: block;
}

.arch-node {
  cursor: pointer;
  transition: all 200ms;
}
.arch-node rect {
  fill: var(--bg-2);
  stroke: var(--border-strong);
  stroke-width: 1;
  transition: all 200ms;
}
.arch-node text.t-title {
  fill: var(--text);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
}
.arch-node text.t-sub {
  fill: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.arch-node.active rect, .arch-node:hover rect {
  stroke: var(--accent);
  fill: var(--bg-1);
}
.arch-node.core rect { stroke-width: 1.5; }
.arch-node.core.active rect { fill: var(--accent-soft); }

.arch-edge {
  stroke: var(--border-strong);
  stroke-width: 1;
  fill: none;
  transition: stroke 200ms;
}
.arch-edge.active { stroke: var(--accent); stroke-width: 1.5; }

.arch-detail {
  border-top: 1px solid var(--border);
  padding: 24px 32px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  min-height: 120px;
}
@media (min-width: 720px) { .arch-detail { grid-template-columns: 200px 1fr 1fr; gap: 32px; } }
.arch-detail .d-label {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin-bottom: 8px;
}
.arch-detail .d-title { font-size: 18px; margin-bottom: 4px; }
.arch-detail .d-body { font-size: 14px; color: var(--text-muted); line-height: 1.55; }
.arch-detail .d-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.arch-detail .d-tech span {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 3px 8px;
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text-muted);
}

/* ============ process (scrollytelling) ============ */
.process-grid {
  margin-top: 80px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
.process-step {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 40px;
  padding: 48px 0;
  border-top: 1px solid var(--border);
  opacity: 0.25;
  transform: translateY(20px);
  transition: opacity 600ms ease, transform 600ms ease;
}
@media (min-width: 900px) {
  .process-step { grid-template-columns: 140px 1fr 1fr; gap: 80px; }
}
.process-step.visible { opacity: 1; transform: translateY(0); }
.process-step:last-child { border-bottom: 1px solid var(--border); }

.process-step .p-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.1em;
}
.process-step h3 {
  font-size: 28px;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.process-step p { font-size: 15px; max-width: 480px; }
.process-step .p-meta {
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
}
.process-step .p-meta div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--border);
}
.process-step .p-meta div span:last-child { color: var(--text); }

/* ============ stats ============ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0;
  border: 1px solid var(--border);
  margin-top: 56px;
}
.stat {
  padding: 40px 32px;
  border-right: 1px solid var(--border);
}
.stat:last-child { border-right: none; }
.stat .s-value {
  font-size: 56px;
  font-weight: 500;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}
.stat .s-value .unit { color: var(--accent); }
.stat .s-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ============ CTA / contact ============ */
.cta {
  background: var(--bg-1);
}
.cta-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 64px;
  margin-top: 40px;
}
@media (min-width: 960px) { .cta-grid { grid-template-columns: 1fr 1fr; } }

.cta-copy h2 { font-size: clamp(36px, 4.5vw, 64px); }
.cta-copy p { font-size: 17px; max-width: 480px; margin-bottom: 32px; }
.cta-contacts {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.cta-contact-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 16px;
  font-size: 14px;
  padding: 8px 0;
}
.cta-contact-item .l {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding-top: 2px;
}
.cta-contact-link,
.cta-telegram-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  transition: color 150ms ease;
}
.cta-contact-link:hover,
.cta-telegram-link:hover {
  color: var(--accent);
}
.cta-contact-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  display: inline-block;
  background-color: currentColor;
  mask: center / contain no-repeat;
  -webkit-mask: center / contain no-repeat;
}
.cta-contact-icon--mail {
  mask-image: url("assets/icons/icon-mail.svg");
  -webkit-mask-image: url("assets/icons/icon-mail.svg");
}
.cta-contact-icon--telegram {
  mask-image: url("assets/icons/icon-telegram.svg");
  -webkit-mask-image: url("assets/icons/icon-telegram.svg");
}

.form {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 32px;
}
.form-row { margin-bottom: 20px; }
.form-row label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.form input, .form textarea, .form select {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14px;
  transition: border-color 150ms;
}
.form input:focus, .form textarea:focus, .form select:focus {
  outline: none;
  border-color: var(--accent);
}
.form textarea { min-height: 100px; resize: vertical; }
.form .form-row-split { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form button[type="submit"] { width: 100%; margin-top: 8px; justify-content: center; }
.form .err { color: var(--accent); font-size: 12px; margin-top: 6px; font-family: var(--font-mono); }
.form .form-send-err {
  color: var(--accent);
  font-size: 13px;
  margin-bottom: 12px;
  padding: 12px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--accent-soft);
  font-family: var(--font-mono);
  line-height: 1.45;
}
.form .success {
  padding: 20px;
  border: 1px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 6px;
  font-size: 14px;
  color: var(--text);
}

/* ============ footer ============ */
footer {
  padding: 48px 0 32px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--text-muted);
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: space-between;
  align-items: center;
}

/* ============ tweaks panel ============ */
.tweaks {
  position: fixed;
  bottom: 20px; right: 20px;
  z-index: 100;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  width: 280px;
  box-shadow: 0 10px 40px -10px rgba(0,0,0,0.5);
  display: none;
  font-family: var(--font-mono);
  font-size: 11px;
}
.tweaks.open { display: block; }
.tweaks.t-hidden { display: none !important; }
.tweaks .t-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
}
.tweaks .t-head h4 { margin: 0; }
.tweaks .t-close {
  width: 22px;
  height: 22px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
  border-radius: 4px;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: all 150ms;
}
.tweaks .t-close:hover {
  color: var(--text);
  border-color: var(--text-dim);
}
.tweaks .t-hint {
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 0.04em;
  margin-top: 4px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}
.tweaks h4 {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
  color: var(--text-muted);
  font-weight: 500;
}
.tweaks .t-row { margin-bottom: 16px; }
.tweaks .t-row:last-child { margin-bottom: 0; }
.tweaks .t-label {
  display: block;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.tweaks .t-variants {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
}
.tweaks .t-variants.t-variants-4 {
  grid-template-columns: repeat(2, 1fr);
}
.tweaks .t-variants button {
  padding: 8px 4px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-muted);
  font-size: 10px;
  font-family: var(--font-mono);
  transition: all 150ms;
}
.tweaks .t-variants button.active {
  border-color: var(--accent);
  color: var(--text);
  background: var(--accent-soft);
}
.tweaks textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  padding: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  resize: vertical;
  min-height: 60px;
}

/* ============ heading word-reveal: hide until animated ============ */
[data-anim-words]:not([data-split="1"]) {
  opacity: 0;
}
[data-anim-words][data-split="1"]:not([data-anim-done="1"]) .w-in {
  opacity: 0;
}

/* ============ reveals ============ */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 700ms ease, transform 700ms ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============ hero layout variants ============ */
.hero[data-variant="split"] .hero-inner { grid-template-columns: 1fr; }
@media (min-width: 960px) {
  .hero[data-variant="split"] .hero-inner,
  .hero[data-variant="workflow"] .hero-inner { grid-template-columns: 1.2fr 1fr; }
}
.hero[data-variant="split"] .hero-visual,
.hero[data-variant="workflow"] .hero-visual { display: block; }
.hero[data-variant="workflow"] .hero-status { display: inline-flex; }
.hero:not([data-variant="workflow"]) .hero-status { display: none; }

.hero[data-variant="center"] .hero-inner { grid-template-columns: 1fr; text-align: center; }
.hero[data-variant="center"] .hero-copy { max-width: 920px; margin: 0 auto; }
.hero[data-variant="center"] .hero-sub { margin-left: auto; margin-right: auto; }
.hero[data-variant="center"] .hero-ctas { justify-content: center; }
.hero[data-variant="center"] .hero-meta { margin-left: auto; margin-right: auto; }
.hero[data-variant="center"] .hero-visual { display: none; }
.hero[data-variant="center"] .eyebrow { justify-content: center; }

.hero[data-variant="editorial"] .hero-inner { grid-template-columns: 1fr; }
.hero[data-variant="editorial"] .hero-visual { display: none; }
.hero[data-variant="editorial"] .hero h1 { font-size: clamp(56px, 10vw, 160px); letter-spacing: -0.05em; }
.hero[data-variant="editorial"] .hero-sub { font-size: 20px; max-width: 640px; }

/* ============ responsive ============ */
@media (min-width: 721px) {
  .nav-drawer {
    display: none !important;
  }
  body.nav-drawer-open {
    overflow: visible !important;
    touch-action: auto !important;
  }
}

@media (max-width: 720px) {
  .container { padding: 0 20px; }
  section { padding: 80px 0; }
  .nav { padding: 12px 16px; }
  .nav-inner { gap: 12px; }
  .nav-links { display: none; }
  .nav-actions { display: none; }
  .nav-menu-toggle { display: flex; }

  body.nav-drawer-open {
    overflow: hidden;
    touch-action: none;
  }

  .hero { padding-top: 104px; padding-bottom: 80px; }
  .hero h1 {
    font-size: clamp(28px, 7.2vw, 44px);
    letter-spacing: -0.032em;
    line-height: 1.02;
    margin: 12px 0 20px;
    overflow-wrap: anywhere;
    word-break: break-word;
  }
  .hero-sub {
    font-size: 16px;
    margin-bottom: 28px;
    line-height: 1.5;
  }
  .hero-ctas {
    flex-direction: column;
    align-items: stretch;
    margin-bottom: 40px;
    gap: 10px;
  }
  .hero-ctas .btn {
    justify-content: center;
    white-space: normal;
    text-wrap: balance;
    text-align: center;
  }
  .hero-ctas .btn-lg {
    padding: 12px 18px;
    font-size: 13px;
  }

  .hero-visual {
    max-width: 100%;
  }
  .hero-visual-head {
    padding-left: 10px;
    padding-right: 10px;
  }
  .hero-visual-body {
    padding-left: 14px;
    padding-right: 14px;
  }
  .wf-label {
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
  }

  .cta-grid {
    min-width: 0;
  }
  .cta-contact-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .cta-contact-item .l {
    padding-top: 0;
  }
  .cta-contact-item > div:last-child {
    min-width: 0;
    overflow-wrap: anywhere;
  }

  .stat { border-right: none; border-bottom: 1px solid var(--border); }
  .stat:last-child { border-bottom: none; }
  .form .form-row-split { grid-template-columns: 1fr; }
  .tweaks { left: 20px; right: 20px; width: auto; }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: clamp(22px, 7.8vw, 34px);
    margin: 10px 0 16px;
    overflow-wrap: anywhere;
    word-break: break-word;
  }
  .hero { padding-top: 96px; }
}