@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap");

:root {
  --bg: #071018;
  --bg-2: #0c1822;
  --panel: #10202c;
  --line: rgba(61, 255, 200, 0.16);
  --mint: #3dffc8;
  --mint-dim: #1aa884;
  --blue: #7aa2ff;
  --amber: #f0c674;
  --text: #dce8ef;
  --muted: #8aa0ad;
  --danger: #ff6b7a;
  --rail: 268px;
  --radius: 14px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(61, 255, 200, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(61, 255, 200, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  z-index: 0;
}

a {
  color: var(--mint);
  text-decoration: none;
}

img {
  max-width: 100%;
}

button,
input,
select,
textarea {
  font-family: inherit;
}

.rail {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--rail);
  background: linear-gradient(180deg, #08131c 0%, #0a1a24 100%);
  border-right: 1px solid var(--line);
  padding: 28px 22px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  z-index: 30;
}

.brand {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border: 1px solid var(--mint);
  display: grid;
  place-items: center;
  color: var(--mint);
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  font-weight: 600;
  flex-shrink: 0;
}

.brand h1 {
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.3;
}

.brand p {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  color: var(--muted);
  margin-top: 4px;
}

.status-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--mint);
  border: 1px solid var(--line);
  padding: 8px 10px;
  background: rgba(61, 255, 200, 0.05);
}

.status-chip i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 10px var(--mint);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  50% { opacity: 0.35; }
}

.lang-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line);
}

.lang-switch button {
  background: transparent;
  border: 0;
  color: var(--muted);
  padding: 8px;
  cursor: pointer;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
}

.lang-switch button.active {
  background: var(--mint);
  color: #062018;
  font-weight: 600;
}

.rail nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow: auto;
  flex: 1;
}

.rail nav a {
  color: var(--muted);
  font-size: 13px;
  padding: 8px 10px;
  border-left: 2px solid transparent;
}

.rail nav a:hover,
.rail nav a.active {
  color: var(--text);
  border-left-color: var(--mint);
  background: rgba(61, 255, 200, 0.05);
}

.rail-meta {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--muted);
  display: grid;
  gap: 6px;
}

.rail-cta {
  display: block;
  text-align: center;
  background: var(--mint);
  color: #062018;
  font-weight: 700;
  padding: 12px;
  font-size: 13px;
}

.menu-btn {
  display: none;
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 40;
  background: var(--panel);
  color: var(--mint);
  border: 1px solid var(--line);
  padding: 10px 12px;
  cursor: pointer;
}

.stage {
  margin-left: var(--rail);
  position: relative;
  z-index: 1;
}

.hero {
  padding: 48px 56px 32px;
  display: grid;
  grid-template-columns: 1.4fr 0.9fr;
  gap: 32px;
  border-bottom: 1px solid var(--line);
}

.kicker {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  color: var(--mint);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.hero h2 {
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.12;
  font-weight: 700;
  max-width: 16ch;
}

.hero .lead {
  margin-top: 18px;
  color: var(--muted);
  max-width: 62ch;
  font-size: 17px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border: 1px solid var(--mint);
  background: var(--mint);
  color: #062018;
  font-weight: 700;
  cursor: pointer;
  font-size: 14px;
}

.btn.ghost {
  background: transparent;
  color: var(--mint);
}

.metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.metric {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 16px;
}

.metric b {
  display: block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 26px;
  color: var(--mint);
}

.metric span {
  color: var(--muted);
  font-size: 12px;
}

.ticker {
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: #08151e;
  white-space: nowrap;
}

.ticker-track {
  display: inline-block;
  animation: ticker 38s linear infinite;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  color: var(--blue);
  padding: 10px 0;
}

@keyframes ticker {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

section {
  padding: 64px 56px;
  border-bottom: 1px solid var(--line);
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 32px;
}

.section-head h2 {
  font-size: 32px;
  line-height: 1.2;
  max-width: 18ch;
}

.node {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  color: var(--blue);
}

.prose {
  color: var(--muted);
  max-width: 78ch;
}

.prose p + p {
  margin-top: 14px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.card,
.sheet,
.article,
.case,
.faq-item,
.form-card {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 22px;
}

.card h3,
.sheet h3,
.case h3,
.article h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.card p,
.sheet p,
.case p,
.article p {
  color: var(--muted);
  font-size: 14.5px;
}

.tag {
  display: inline-block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--amber);
  margin-bottom: 10px;
}

.kved {
  display: grid;
  gap: 14px;
}

.kved article {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 18px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  padding: 20px;
}

.kved code {
  font-family: "IBM Plex Mono", monospace;
  color: var(--mint);
  font-size: 13px;
}

.list {
  margin: 12px 0 0 18px;
  color: var(--muted);
}

.timeline {
  display: grid;
  gap: 0;
}

.timeline li {
  list-style: none;
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 20px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.timeline strong {
  font-family: "IBM Plex Mono", monospace;
  color: var(--mint);
  font-size: 13px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th,
td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
}

th {
  color: var(--mint);
  font-family: "IBM Plex Mono", monospace;
  font-weight: 500;
  font-size: 12px;
}

.faq-item {
  cursor: pointer;
  margin-bottom: 10px;
}

.faq-item h3 {
  font-size: 16px;
  display: flex;
  justify-content: space-between;
}

.faq-item p {
  display: none;
  margin-top: 10px;
}

.faq-item.open p {
  display: block;
}

form {
  display: grid;
  gap: 12px;
}

label {
  font-size: 13px;
  color: var(--muted);
}

input,
select,
textarea {
  width: 100%;
  background: #0a1620;
  border: 1px solid var(--line);
  color: var(--text);
  padding: 12px;
  outline: none;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

.form-note {
  font-size: 13px;
  color: var(--muted);
}

.form-note.ok {
  color: var(--mint);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 24px;
}

.contact-list {
  display: grid;
  gap: 14px;
}

.contact-list div {
  border: 1px solid var(--line);
  padding: 16px;
  background: var(--bg-2);
}

.contact-list span {
  display: block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--blue);
  margin-bottom: 4px;
}

footer {
  padding: 36px 56px 60px;
  color: var(--muted);
  font-size: 13px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 24px;
}

.log {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  background: #061018;
  border: 1px solid var(--line);
  padding: 16px;
  color: var(--mint-dim);
  min-height: 180px;
}

.log b {
  color: var(--mint);
}

@media (max-width: 1100px) {
  :root { --rail: 0px; }
  .rail {
    transform: translateX(-110%);
    width: min(86vw, 300px);
    transition: 0.25s transform;
  }
  .rail.open { transform: none; }
  .menu-btn { display: block; }
  .hero,
  section,
  footer { padding: 40px 20px; }
  .hero,
  .grid-2,
  .grid-3,
  .grid-4,
  .contact-grid,
  footer,
  .kved article,
  .timeline li,
  .section-head {
    grid-template-columns: 1fr;
  }
}