:root {
  --bg-deep: #03060d;
  --panel: rgba(10, 16, 28, 0.84);
  --line: rgba(111, 227, 255, 0.18);
  --text: #eef7ff;
  --muted: #91a7bf;
  --accent: #72ecff;
  --accent-2: #a8ff60;
  --shadow: 0 28px 100px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", "Noto Sans SC", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 16% 18%, rgba(111, 227, 255, 0.16), transparent 26%),
    radial-gradient(circle at 82% 15%, rgba(111, 123, 255, 0.16), transparent 24%),
    radial-gradient(circle at 52% 100%, rgba(168, 255, 96, 0.1), transparent 32%),
    linear-gradient(180deg, #07101b 0%, #050814 48%, var(--bg-deep) 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at center, rgba(0, 0, 0, 0.75), transparent 85%);
}

body.subpage {
  background:
    radial-gradient(circle at 12% 16%, rgba(111, 227, 255, 0.12), transparent 22%),
    radial-gradient(circle at 86% 8%, rgba(168, 255, 96, 0.08), transparent 18%),
    linear-gradient(180deg, #08111d 0%, #040913 100%);
}

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

.shell {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 14px;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 14px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(7, 12, 22, 0.76);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

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

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #031018;
  font-weight: 900;
  overflow: hidden;
}

.brand-mark img {
  width: 78%;
  height: 78%;
  object-fit: contain;
  display: block;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-copy strong,
.nav-cta,
.primary-btn,
h1,
h2,
h3 {
  font-family: "Noto Sans SC", "Manrope", sans-serif;
}

.brand-copy strong {
  font-size: 0.98rem;
}

.brand-copy small,
.nav {
  color: var(--muted);
}

.brand-copy small {
  font-size: 0.76rem;
}

.nav {
  display: flex;
  gap: 18px;
  align-items: center;
  margin-left: auto;
}

.nav a {
  transition: color 180ms ease;
}

.nav a:hover {
  color: var(--text);
}

.nav-cta,
.primary-btn,
.secondary-btn,
.filter-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 800;
  cursor: pointer;
  transition:
    transform 180ms ease,
    background 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.nav-cta,
.primary-btn {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #031018;
  box-shadow: 0 18px 40px rgba(114, 236, 255, 0.22);
}

.nav-cta {
  padding: 14px 24px;
  white-space: nowrap;
}

.secondary-btn,
.filter-chip {
  background: rgba(8, 14, 25, 0.78);
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.12);
}

.primary-btn,
.secondary-btn {
  min-height: 54px;
  padding: 0 26px;
}

.nav-cta:hover,
.primary-btn:hover,
.secondary-btn:hover,
.filter-chip:hover,
.filter-chip.is-active {
  transform: translateY(-1px);
}

.secondary-btn:hover,
.filter-chip.is-active {
  border-color: var(--accent);
  box-shadow: 0 18px 36px rgba(111, 227, 255, 0.16);
}

.hero,
.forum-hero {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 28px;
  align-items: center;
  padding: 82px 0 48px;
}

.hero-copy,
.hero-panel,
.forum-hero__panel {
  position: relative;
}

.eyebrow,
.panel-label,
.stack-tag,
.thread-tag,
.thread-meta span:last-child {
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent-2);
  font-size: 0.86rem;
  font-weight: 800;
}

h1 {
  margin: 0;
  font-size: clamp(3.2rem, 8vw, 6.1rem);
  line-height: 0.94;
}

.hero-text,
.result-text,
.terminal-points li,
.capability-card p,
.runtime-card p,
.forum-preview-list li,
.thread-card p,
.compose-card p {
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.8;
}

.hero-text {
  max-width: 700px;
  margin: 22px 0 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.hero-metrics,
.signal-grid,
.output-grid,
.runtime-grid,
.capability-grid,
.thread-grid,
.compose-layout,
.forum-preview-shell {
  display: grid;
  gap: 18px;
}

.hero-metrics {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 30px;
}

.hero-metrics article,
.signal-grid article,
.output-grid article,
.runtime-card,
.capability-card,
.thread-card,
.compose-card,
.forum-preview-card {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.hero-metrics article {
  padding: 18px 18px 20px;
}

.hero-metrics strong,
.signal-grid strong,
.output-grid strong {
  display: block;
  font-size: 1.02rem;
}

.hero-metrics span,
.signal-grid span,
.output-grid span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

.hero-panel {
  min-height: 560px;
}

.hero-glow {
  position: absolute;
  inset: 10% 10% auto auto;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(111, 227, 255, 0.34), transparent 68%);
  filter: blur(16px);
}

.terminal-card {
  position: relative;
  overflow: hidden;
  padding: 26px;
  border: 1px solid rgba(111, 227, 255, 0.18);
  border-radius: 34px;
  background:
    linear-gradient(180deg, rgba(10, 18, 31, 0.96) 0%, rgba(7, 12, 23, 0.96) 100%);
  box-shadow: var(--shadow);
}

.terminal-card::before,
.runtime-console::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(111, 227, 255, 0.12), transparent 28%, rgba(168, 255, 96, 0.1));
}

.terminal-card--hero {
  min-height: 100%;
}

.terminal-head,
.runtime-console__head,
.thread-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.panel-label,
.stack-tag,
.thread-tag {
  margin: 0;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 800;
}

.terminal-status {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(168, 255, 96, 0.12);
  color: var(--accent-2);
  font-size: 0.82rem;
  font-weight: 700;
}

.terminal-card h2,
.forum-hero__panel h2,
.runtime-card h3,
.capability-card h3,
.thread-card h3,
.compose-card h3,
.forum-preview-card h3,
.output-panel h3 {
  margin: 18px 0 0;
  font-size: clamp(1.5rem, 3vw, 2.35rem);
  line-height: 1.2;
}

.terminal-points,
.forum-preview-list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.terminal-points li,
.forum-preview-list li {
  position: relative;
  padding-left: 20px;
}

.terminal-points li::before,
.forum-preview-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

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

.signal-grid {
  margin-top: 24px;
}

.signal-grid article,
.output-grid article {
  padding: 18px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.03);
}

.section {
  padding: 34px 0 58px;
}

.section-heading {
  display: grid;
  gap: 12px;
  margin-bottom: 28px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.1rem);
  line-height: 1.14;
}

.capability-card,
.runtime-card,
.forum-preview-card,
.thread-card,
.compose-card {
  padding: 24px;
}

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

.terminal-layout {
  display: grid;
  grid-template-columns: 0.96fr 1.04fr;
  gap: 22px;
}

.terminal-form,
.output-panel {
  padding: 24px;
  border-radius: 32px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.terminal-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.field {
  display: grid;
  gap: 10px;
}

.field span {
  font-size: 0.94rem;
  font-weight: 700;
}

.field input,
.field textarea {
  width: 100%;
  min-height: 58px;
  padding: 0 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font: inherit;
}

.field textarea {
  min-height: 188px;
  padding: 18px;
  resize: vertical;
}

.field input::placeholder,
.field textarea::placeholder {
  color: rgba(145, 167, 191, 0.72);
}

.field--wide {
  grid-column: 1 / -1;
}

.form-btn {
  grid-column: 1 / -1;
}

.output-panel {
  display: grid;
  gap: 18px;
  align-content: start;
}

.output-grid {
  margin-top: 8px;
}

.runtime-console {
  position: relative;
  overflow: hidden;
  margin-top: 24px;
  padding: 22px;
  border: 1px solid rgba(111, 227, 255, 0.16);
  border-radius: 30px;
  background: rgba(6, 11, 20, 0.92);
  box-shadow: var(--shadow);
}

.runtime-console pre {
  position: relative;
  z-index: 1;
  overflow-x: auto;
  margin: 18px 0 0;
  padding: 18px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--accent);
  font-size: 0.9rem;
  line-height: 1.75;
}

.forum-preview-shell,
.compose-layout {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.forum-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 22px;
}

.filter-chip {
  min-height: 46px;
  padding: 0 18px;
}

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

.thread-card {
  display: grid;
  gap: 14px;
}

.thread-meta span:last-child {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
}

.thread-card.is-hidden {
  display: none;
}

.forum-compose {
  padding-bottom: 78px;
}

.footer {
  display: grid;
  gap: 6px;
  padding: 24px 0 42px;
  color: var(--muted);
  text-align: center;
}

.footer p {
  margin: 0;
}

.footer-record {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  text-decoration: none;
  transition: color 180ms ease;
}

.footer-record:hover {
  color: var(--text);
}

@media (max-width: 1080px) {
  .topbar,
  .hero,
  .forum-hero,
  .terminal-layout,
  .forum-preview-shell,
  .compose-layout {
    grid-template-columns: 1fr;
  }

  .topbar {
    border-radius: 28px;
    align-items: flex-start;
  }

  .nav {
    flex-wrap: wrap;
    margin-left: 0;
  }

  .hero-metrics,
  .signal-grid,
  .output-grid,
  .capability-grid,
  .runtime-grid,
  .thread-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 760px) {
  .shell {
    width: min(100% - 20px, 100%);
  }

  .topbar {
    top: 10px;
    padding: 14px;
  }

  .nav {
    gap: 12px;
    font-size: 0.92rem;
  }

  h1 {
    font-size: clamp(2.5rem, 18vw, 4.4rem);
  }

  .hero,
  .forum-hero {
    padding-top: 62px;
  }

  .hero-metrics,
  .signal-grid,
  .output-grid,
  .capability-grid,
  .runtime-grid,
  .thread-grid {
    grid-template-columns: 1fr;
  }

  .terminal-form {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 26px 0 48px;
  }
}