:root {
  --bg: #f9f6f0;
  --bg-soft: #ebe6d9;
  --panel: rgba(255, 255, 255, 0.92);
  --panel-strong: rgba(255, 255, 255, 0.98);
  --panel-wash: rgba(249, 246, 240, 0.9);
  --ink: #1f1814;
  --muted: #6b5c52;
  --line: rgba(125, 102, 88, 0.18);
  --line-strong: rgba(125, 102, 88, 0.28);
  --accent: #e56e28;
  --accent-soft: rgba(229, 110, 40, 0.12);
  --accent-strong: rgba(229, 110, 40, 0.2);
  --navy-accent: #0e2151;
  --navy-soft: rgba(14, 33, 81, 0.12);
  --ok-soft: rgba(52, 122, 88, 0.12);
  --shadow: 0 22px 60px rgba(112, 90, 75, 0.11);
  --maxw: 1380px;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --font-sans: "Plus Jakarta Sans", "Avenir Next", "Segoe UI", sans-serif;
  --font-display: "Syne", "Outfit", "Avenir Next", "Segoe UI", sans-serif;
  --font-elegant: "Outfit", "Plus Jakarta Sans", "Avenir Next", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html,
body {
  margin: 0;
  min-height: 100%;
  color: var(--ink);
  font-family: var(--font-sans);
  background:
    linear-gradient(rgba(183, 91, 50, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(183, 91, 50, 0.04) 1px, transparent 1px),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 56%, var(--bg-soft) 100%);
  background-size: 32px 32px, 32px 32px, auto;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 12% 10%, rgba(183, 91, 50, 0.08), transparent 24%),
    radial-gradient(circle at 86% 16%, rgba(14, 33, 81, 0.08), transparent 22%);
}

a {
  color: inherit;
}

.page {
  position: relative;
  width: min(var(--maxw), 94vw);
  margin: 22px auto 42px;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  overflow: hidden;
}

.erse-coming-soon-slate {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: #ffffff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: clamp(20px, 4.2vw, 48px) clamp(18px, 4vw, 36px) clamp(70px, 9vh, 96px);
  overflow-y: auto;
}

.erse-coming-soon-inner {
  width: min(820px, 94%);
  display: grid;
  justify-items: center;
  text-align: center;
  gap: 16px;
  margin-top: clamp(8px, 1.5vh, 20px);
}

.erse-coming-logo {
  width: clamp(170px, 22vw, 280px);
  height: auto;
  animation: erse-logo-spin 22s linear infinite;
  transform-origin: center;
}

.erse-coming-soon-inner h2 {
  margin: 2px 0 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
  color: var(--accent);
}

.erse-coming-soon-inner p {
  margin: 0;
  max-width: 66ch;
  font-family: var(--font-elegant);
  font-size: clamp(1rem, 1.35vw, 1.18rem);
  line-height: 1.75;
  color: #3a3029;
}

.erse-coming-footnote {
  margin: auto 0 0;
  font-family: var(--font-elegant);
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  color: rgba(58, 48, 41, 0.72);
}

@keyframes erse-logo-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.page::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(183, 91, 50, 0.05), rgba(183, 91, 50, 0) 12%),
    linear-gradient(90deg, transparent 0, transparent calc(100% - 1px), rgba(183, 91, 50, 0.05) calc(100% - 1px)),
    linear-gradient(0deg, transparent 0, transparent calc(100% - 1px), rgba(183, 91, 50, 0.05) calc(100% - 1px));
  background-size: auto, 28px 28px, 28px 28px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  padding: 16px 22px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(14px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  flex-wrap: wrap;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 7px var(--accent-soft);
}

.brand h1 {
  margin: 0;
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
}

.host-pill,
.micro-label,
.tag,
.route-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  padding: 7px 11px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.host-pill,
.micro-label {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.88);
  color: #314572;
}

nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

nav a,
.btn {
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 13px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.88);
  transition: border-color 180ms ease, background-color 180ms ease, color 180ms ease, transform 180ms ease;
}

nav a:hover,
nav a:focus-visible,
.btn:hover,
.btn:focus-visible {
  border-color: rgba(229, 110, 40, 0.4);
  color: #0e2151;
  transform: translateY(-1px);
}

nav a.active,
.btn.primary {
  border-color: rgba(229, 110, 40, 0.55);
  background: linear-gradient(135deg, rgba(229, 110, 40, 0.16), rgba(229, 110, 40, 0.06));
  color: #b45219;
}

main {
  position: relative;
  z-index: 1;
  padding: 22px;
}

.hero,
.section {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--panel-strong);
  box-shadow: 0 14px 36px rgba(112, 90, 75, 0.05);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 18px;
  padding: clamp(22px, 4vw, 36px);
  background:
    radial-gradient(circle at 0% 0%, rgba(183, 91, 50, 0.12), transparent 34%),
    linear-gradient(180deg, rgba(246, 238, 230, 0.75), rgba(255, 255, 255, 0.98));
}

.hero-main,
.hero-side {
  display: grid;
  align-content: start;
  gap: 14px;
}

.route-chip {
  justify-self: start;
  border: 1px solid rgba(14, 33, 81, 0.34);
  background: var(--navy-soft);
  color: var(--navy-accent);
}

.hero h2 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 4.6rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
  text-transform: uppercase;
  color: var(--ink);
}

.hero p {
  margin: 0;
  max-width: 64ch;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.hero-panel,
.card,
.download-item,
.notice {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.96);
}

.hero-panel {
  padding: 18px;
  background:
    radial-gradient(circle at top right, rgba(183, 91, 50, 0.08), transparent 26%),
    rgba(255, 255, 255, 0.96);
}

.panel-title,
.section h3 {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--navy-accent);
}

.panel-copy {
  margin: 10px 0 0;
  color: var(--ink);
  font-size: 13px;
  line-height: 1.65;
}

.stat-grid,
.grid-3,
.grid-2,
.download-list {
  display: grid;
  gap: 12px;
}

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

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.stat-card,
.card,
.download-item {
  padding: 16px;
}

.stat-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel-wash);
}

.stat-card strong,
.card h4,
.download-item h5 {
  display: block;
  margin: 0;
  color: var(--ink);
}

.stat-card strong {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.stat-card span {
  display: block;
  margin-top: 10px;
  color: #2c211b;
  font-size: 14px;
  line-height: 1.55;
}

.section {
  margin-top: 16px;
  padding: 18px;
}

.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}

.section-copy {
  margin: 8px 0 0;
  max-width: 70ch;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.card h4,
.download-item h5 {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.45;
}

.card p,
.download-item p,
.section p,
.section li,
.notice {
  color: #3f342d;
  font-size: 14px;
  line-height: 1.7;
}

.card p,
.download-item p {
  margin: 10px 0 0;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.tag {
  border: 1px solid rgba(183, 91, 50, 0.24);
  background: rgba(183, 91, 50, 0.07);
  color: #954926;
}

.download-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.download-meta {
  margin-top: 12px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  word-break: break-word;
}

.notice {
  padding: 16px;
  background:
    linear-gradient(180deg, rgba(183, 91, 50, 0.06), rgba(183, 91, 50, 0.02)),
    rgba(255, 255, 255, 0.95);
}

.note-ok {
  background:
    linear-gradient(180deg, rgba(52, 122, 88, 0.09), rgba(52, 122, 88, 0.02)),
    rgba(255, 255, 255, 0.95);
}

.stack {
  display: grid;
  gap: 12px;
}

.live-console-section {
  border-color: rgba(183, 91, 50, 0.28);
}

.live-console-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.9fr);
  gap: 14px;
}

.live-console-frame-wrap {
  position: relative;
  min-height: 680px;
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(183, 91, 50, 0.06), rgba(183, 91, 50, 0.01)),
    rgba(255, 255, 255, 0.96);
}

.live-console-frame {
  width: 100%;
  min-height: 680px;
  border: 0;
  display: block;
  background: #ffffff;
}

.live-console-placeholder {
  position: absolute;
  inset: 0;
  display: none;
  align-content: center;
  justify-items: center;
  gap: 10px;
  text-align: center;
  padding: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(246, 238, 230, 0.95));
}

.live-console-placeholder strong {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.live-console-placeholder p {
  margin: 0;
  max-width: 44ch;
  color: #3f342d;
  font-size: 14px;
  line-height: 1.7;
}

code {
  display: inline-block;
  margin-top: 6px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  color: #2c211b;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.03em;
  line-height: 1.55;
  word-break: break-word;
}

@media (max-width: 980px) {
  .hero,
  .grid-3,
  .grid-2,
  .download-list,
  .stat-grid,
  .live-console-grid {
    grid-template-columns: 1fr;
  }

  .live-console-frame-wrap,
  .live-console-frame {
    min-height: 560px;
  }
}

@media (max-width: 760px) {
  .page {
    width: min(96vw, var(--maxw));
    margin-top: 14px;
    border-radius: 22px;
  }

  .topbar {
    position: relative;
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    justify-content: flex-start;
  }

  main {
    padding: 16px;
  }

  .hero,
  .section {
    border-radius: 20px;
  }

  .section-head {
    flex-direction: column;
  }
}