:root {
  --bg: #05070b;
  --bg-soft: #0a0d14;
  --panel: #0c1017;
  --panel-2: #111620;
  --panel-3: #161c27;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #f5f7fb;
  --muted: #9099a8;
  --muted-2: #6e7685;
  --accent: #ffffff;
  --accent-soft: #c7d2e5;
  --live: #2fb36d;
  --ready: #c08a2c;
  --danger: #d85d5d;
  --shadow-lg: 0 30px 80px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 18px 42px rgba(0, 0, 0, 0.22);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "IBM Plex Sans", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top center, rgba(255, 255, 255, 0.04), transparent 22%),
    linear-gradient(180deg, #040508 0%, #07090e 18%, #05070b 100%);
}

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

.app-shell {
  width: 100%;
  padding: 16px;
}

.topbar,
.topbar-links,
.main-grid,
.hero-actions,
.hero-command-row,
.pill-row,
.badge-row,
.tool-link-row,
.featured-topline,
.card-head,
.card-actions,
.toolbar,
.section-heading.with-controls {
  display: flex;
}

.topbar {
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: rgba(10, 12, 18, 0.82);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-md);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.02));
  color: var(--text);
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
}

.brand-copy {
  display: grid;
  gap: 1px;
}

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

.brand-copy small,
.topbar-links a,
.meta-line,
.section-kicker,
.signal-label,
.section-caption {
  color: var(--muted);
}

.topbar-links {
  gap: 18px;
  flex-wrap: wrap;
  font-size: 0.84rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.main-grid {
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 16px;
}

.hero-panel,
.content-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(180deg, rgba(15, 18, 25, 0.98), rgba(10, 13, 18, 0.98));
  box-shadow: var(--shadow-lg);
}

.hero-panel {
  width: 100%;
  min-height: 0;
  padding: 24px;
  display: block;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.hero-summary-strip,
.hero-main-grid {
  display: grid;
  gap: 14px;
}

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

.hero-summary-card,
.hero-nav-panel {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.025);
}

.hero-summary-card {
  display: grid;
  gap: 8px;
  padding: 16px 18px;
}

.hero-summary-card strong {
  font-size: 1rem;
}

.hero-summary-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
  font-size: 0.9rem;
}

.hero-main-grid {
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.9fr);
  align-items: start;
}

.hero-heading-copy {
  display: grid;
  gap: 14px;
}

.hero-label {
  display: inline-flex;
  width: fit-content;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-meta-label {
  color: var(--muted-2);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow,
.section-kicker {
  margin: 0 0 10px;
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  line-height: 1;
}

h1 {
  max-width: 13ch;
  font-size: clamp(2rem, 3.2vw, 3.15rem);
  letter-spacing: -0.045em;
  line-height: 1;
}

h2 {
  font-size: clamp(1.55rem, 2vw, 2.15rem);
  letter-spacing: -0.04em;
}

h3 {
  font-size: 1.08rem;
  letter-spacing: -0.03em;
}

.lede,
.summary,
.practical,
.outcome,
.signal-card p,
.signal-list p,
.diagram-lane p,
.stack-item p {
  color: var(--accent-soft);
  line-height: 1.56;
}

.lede {
  max-width: 60ch;
  margin-top: 0;
  font-size: 0.98rem;
}

.hero-actions {
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.button,
.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button:hover,
.button-link:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: #ffffff;
  color: #06080d;
}

.button-secondary,
.button-link {
  border-color: var(--border-strong);
  background: rgba(255, 255, 255, 0.03);
}

.button-link.primary {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
}

.hero-nav-panel {
  display: grid;
  gap: 14px;
  padding: 18px;
}

.hero-nav-head {
  display: grid;
  gap: 6px;
}

.hero-nav-head strong {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.05rem;
  letter-spacing: -0.03em;
}

.hero-nav-list {
  display: grid;
  gap: 10px;
}

.hero-nav-list a {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.025);
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.hero-nav-list a:hover {
  border-color: var(--border-strong);
  background: rgba(255, 255, 255, 0.05);
  transform: translateY(-1px);
}

.hero-nav-list span {
  color: var(--muted-2);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.hero-nav-list strong {
  font-size: 0.94rem;
  line-height: 1.3;
}

.signal-card,
.panel-card,
.stack-item,
.card,
.featured-card,
.diagram-lane {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(20, 25, 34, 0.98), rgba(14, 18, 25, 0.98));
}

.signal-card,
.panel-card,
.stack-item,
.card,
.featured-card,
.diagram-lane {
  box-shadow: var(--shadow-md);
}

.signal-card {
  padding: 16px;
}

.signal-card-accent {
  border-color: rgba(255, 255, 255, 0.14);
  background:
    linear-gradient(180deg, rgba(26, 31, 40, 0.98), rgba(16, 20, 28, 0.98));
}

.signal-label {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.signal-card strong,
.signal-list strong {
  display: block;
  margin-bottom: 8px;
  font-size: 0.98rem;
}

.panel-card,
.content-panel {
  padding: 18px;
}

.top-strip-grid,
.signal-row {
  width: 100%;
  display: grid;
  gap: 14px;
}

.top-strip-grid {
  grid-template-columns: 1.15fr 1fr 1fr repeat(3, minmax(0, 0.82fr));
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

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

.strip-card,
.signal-card {
  min-height: 100%;
}

.panel-head,
.section-heading {
  display: grid;
  gap: 6px;
}

.panel-head {
  margin-bottom: 14px;
}

.signal-list {
  display: grid;
  gap: 12px;
}

.signal-list div {
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.signal-list div:first-child {
  padding-top: 0;
  border-top: 0;
}

.pill-row,
.badge-row,
.tool-link-row {
  gap: 8px;
  flex-wrap: wrap;
}

.pill,
.mini-badge,
.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 700;
}

.pill,
.mini-badge {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
}

.status-badge {
  color: #071016;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.68rem;
}

.status-live {
  background: var(--live);
}

.status-ready,
.status-planned {
  background: var(--ready);
}

.status-installing {
  background: #f1bf63;
}

.status-unreachable {
  background: var(--danger);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.metric-card {
  display: grid;
  gap: 3px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.025);
}

.metric-card strong {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.5rem;
}

.metric-card span {
  color: var(--muted);
  font-size: 0.8rem;
}

.content-panel {
  width: calc(50% - 8px);
  min-width: 480px;
}

.content-panel-wide {
  width: 100%;
}

.section-heading.with-controls {
  justify-content: space-between;
  align-items: end;
  gap: 18px;
}

.section-caption {
  margin: 0 0 16px;
  font-size: 0.92rem;
  line-height: 1.5;
}

.toolbar {
  gap: 10px;
  flex-wrap: wrap;
}

input,
select {
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  font: inherit;
}

input {
  min-width: 240px;
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.featured-card,
.stack-item,
.card {
  padding: 16px;
}

.featured-card {
  display: grid;
  gap: 12px;
}

.featured-topline,
.card-head {
  justify-content: space-between;
  align-items: start;
  gap: 14px;
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.card-grid,
.tool-grid,
.journey-grid {
  display: grid;
  gap: 12px;
}

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

.tool-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.tool-card,
.journey-card,
.guided-card,
.quickstart-card {
  position: relative;
  overflow: hidden;
}

.tool-card::before,
.journey-card::before,
.guided-card::before,
.quickstart-card::before,
.featured-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.08), transparent);
}

.summary {
  margin: 12px 0 0;
}

.practical,
.outcome {
  margin: 14px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.card-actions {
  gap: 8px;
  margin-top: 16px;
  flex-wrap: wrap;
}

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

.diagram-lane {
  padding: 16px;
}

.diagram-title {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.diagram-arrow {
  justify-self: center;
  color: var(--muted);
  font-size: 1.25rem;
}

.empty-state {
  padding: 24px;
  border: 1px dashed var(--border-strong);
  border-radius: 16px;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 1440px) {
  .content-panel {
    width: 100%;
    min-width: 0;
  }

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

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

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

  .signal-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 980px) {
  .topbar,
  .section-heading.with-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-summary-strip,
  .hero-main-grid,
  .top-strip-grid {
    grid-template-columns: 1fr;
  }

  .featured-grid,
  .stack-grid,
  .compact-grid,
  .tool-grid,
  .journey-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .app-shell {
    padding: 10px;
  }

  h1 {
    max-width: none;
    font-size: clamp(2rem, 10vw, 3rem);
  }

  h2 {
    font-size: clamp(1.3rem, 8vw, 1.8rem);
  }

  input {
    min-width: 100%;
  }

  .featured-grid,
  .stack-grid,
  .compact-grid,
  .tool-grid,
  .journey-grid,
  .metric-grid {
    grid-template-columns: 1fr;
  }
}