/* ===== BLUEPRINT DESIGN SYSTEM =====
   Used by the redesigned pages (index.html, agentos.html).
   Pages on this stylesheet do not load main.css. */

/* ===== TOKENS ===== */
:root {
  --nav-h: 72px;
  --accent: #8b93e8;
  --bg: #0c0e14;
  --bg-panel: #10121a;
  --heading: #eef1f7;
  --body: #dfe4ee;
  --muted: #8b93a5;
  --mono-muted: #7e8798;
  --tag-text: #c0c6d4;
  --callout-text: #c8cde0;
  --live: #62d99a;
  --beta: #e0be62;
  --dev: #e69752;
  --rule: rgba(255,255,255,0.08);
  --card-border: rgba(255,255,255,0.09);
  --tag-border: rgba(255,255,255,0.12);
  --node-border: rgba(255,255,255,0.14);
  --font-sans: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

/* ===== RESET / BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--body);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(139,147,232,0.35); }

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 48px;
}

/* ===== NAV ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  border-bottom: 1px solid var(--rule);
  background: rgba(12,14,20,0.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.nav-brand {
  font-weight: 700;
  font-size: 15.5px;
  color: var(--heading);
  letter-spacing: -0.01em;
}
.nav-links {
  display: flex;
  gap: 28px;
  font-family: var(--font-mono);
  font-size: 13px;
}
.nav-links a {
  color: var(--mono-muted);
  text-decoration: none;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--heading); }
.nav-links .active { color: var(--heading); }

/* ===== SUBNAV ===== */
.subnav {
  position: sticky;
  top: var(--nav-h);
  z-index: 99;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  padding: 12px 0;
  border-bottom: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 11.5px;
  background: rgba(12,14,20,0.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.subnav-label { color: var(--accent); }
.subnav a {
  color: var(--mono-muted);
  text-decoration: none;
  transition: color 0.15s;
}
.subnav a:hover { color: var(--heading); }
.subnav .active { color: var(--heading); }
a.subnav-label { text-decoration: none; transition: color 0.15s; }
a.subnav-label:hover { color: var(--heading); }
.subnav-divider {
  width: 1px;
  height: 14px;
  background: rgba(255,255,255,0.14);
}

/* ===== HERO ===== */
.hero { padding: 40px 0; }
.kicker {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--accent);
}
.kicker-row {
  display: flex;
  align-items: center;
  gap: 14px;
}
.hero-title {
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -0.03em;
  color: var(--heading);
}
.page-home .hero-title {
  font-size: clamp(44px, 5.5vw, 70px);
  max-width: 880px;
  margin-top: 26px;
  text-wrap: balance;
}
.page-project .hero-title {
  font-size: clamp(40px, 5vw, 60px);
  margin-top: 22px;
}
.hero-standfirst {
  font-size: 17.5px;
  line-height: 1.65;
  color: var(--muted);
  max-width: 600px;
  margin-top: 26px;
  text-wrap: pretty;
}
.hero-tagline {
  font-size: 18px;
  font-weight: 500;
  color: var(--accent);
  margin-top: 10px;
}
.hero-desc {
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 720px;
  margin-top: 20px;
  text-wrap: pretty;
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  margin-top: 40px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--mono-muted);
}
.page-project .hero-stats { margin-top: 32px; }
.stat-num { color: var(--accent); }

/* ===== SECTION LABEL BAR ===== */
.label-bar {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 13px 0;
  font-family: var(--font-mono);
}
.label-bar-name {
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--mono-muted);
}
.label-bar-line {
  flex: 1;
  height: 1px;
  background: rgba(255,255,255,0.06);
}
.label-bar-count {
  font-size: 11.5px;
  color: var(--accent);
}

/* ===== SECTIONS ===== */
.section { padding: 40px 0; }
.section-h2 {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--heading);
}
.section-lede {
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 720px;
  margin-top: 14px;
  text-wrap: pretty;
}
.prose-p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
  margin-top: 16px;
  text-wrap: pretty;
}
.split-why {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: start;
}
.split-log {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  align-items: start;
}
.callout {
  margin-top: 22px;
  padding: 18px 20px;
  border-radius: 8px;
  background: color-mix(in srgb, var(--accent) 7%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  font-size: 15px;
  line-height: 1.6;
  color: var(--callout-text);
}

/* ===== GRIDS ===== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

/* ===== CARDS ===== */
.card {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 22px;
}
.card-sm { padding: 20px; }
.card-link {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, background 0.15s;
}
.card-link:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
  background: rgba(255,255,255,0.045);
}
.card-kicker {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mono-muted);
}
.card-title, .card-title-sm {
  font-weight: 600;
  color: var(--heading);
}
.card-title { font-size: 17px; margin-top: 10px; }
.card-title-sm { font-size: 15.5px; margin-top: 8px; }
.card-title-mono {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--accent);
  margin-top: 10px;
}
.card-desc, .card-desc-sm { color: var(--muted); }
.card-desc { font-size: 14px; line-height: 1.6; margin-top: 8px; }
.card-desc-sm { font-size: 13.5px; line-height: 1.55; margin-top: 6px; }
.card-cta, .card-cta-sm {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
}
.card-cta { margin-top: 14px; }
.card-cta-sm { margin-top: 12px; }
.card-note {
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
  margin-top: 10px;
}
.card-neg { border-color: color-mix(in srgb, var(--dev) 40%, transparent); }
.card-neg .card-kicker { color: var(--dev); }
.card-pos { border-color: color-mix(in srgb, var(--accent) 40%, transparent); }
.card-pos .card-kicker { color: var(--accent); }
.card-stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.card-offset { margin-top: 15px; }
.num-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
}
.num-list > div {
  display: flex;
  gap: 12px;
  font-size: 13.5px;
  color: var(--tag-text);
}
.num-list .num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--mono-muted);
}

/* ===== BADGES / TAGS / INLINE CODE ===== */
.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  padding: 2px 8px;
  border-radius: 3px;
  border: 1px solid;
}
.badge-live { color: var(--live); border-color: color-mix(in srgb, var(--live) 45%, transparent); }
.badge-beta { color: var(--beta); border-color: color-mix(in srgb, var(--beta) 45%, transparent); }
.badge-dev { color: var(--dev); border-color: color-mix(in srgb, var(--dev) 45%, transparent); }
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
}
.tag {
  font-size: 11px;
  color: var(--tag-text);
  border: 1px solid var(--tag-border);
  padding: 3px 9px;
  border-radius: 4px;
}
.code-accent {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--accent);
}

/* ===== HOMEPAGE WORK INDEX ===== */
.work-row {
  display: grid;
  grid-template-columns: 88px 1fr auto;
  gap: 36px;
  padding: 38px 20px;
  margin: 0 -20px;
  border-radius: 8px;
  text-decoration: none;
  color: inherit;
  transition: background 0.15s;
}
.work-row:hover { background: rgba(255,255,255,0.025); }
.work-index {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--mono-muted);
}
.work-row .badge { margin-top: 12px; }
.work-title {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--heading);
}
.work-sub {
  font-size: 15px;
  font-weight: 500;
  color: var(--accent);
  margin-top: 5px;
}
.work-desc {
  font-size: 15px;
  line-height: 1.6;
  color: var(--muted);
  max-width: 620px;
  margin-top: 14px;
  text-wrap: pretty;
}
.work-row .tag-row { margin-top: 18px; }
.work-rule { height: 1px; background: rgba(255,255,255,0.07); }
.details-btn {
  align-self: start;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  white-space: nowrap;
  border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  padding: 7px 14px;
  border-radius: 5px;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.details-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(139,147,232,0.08);
}

/* ===== BUILD LOG TIMELINE ===== */
.log-row {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 36px;
  padding: 22px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.log-row:first-child { border-top: none; }
.log-date {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--accent);
  white-space: nowrap;
  padding-top: 2px;
}

/* ===== SYSTEM MAP ===== */
.sysmap {
  margin-top: 28px;
  background: var(--bg-panel);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 32px;
}
.sysmap-label { margin-bottom: 24px; }
.sysmap-inner {
  max-width: 760px;
  margin: 0 auto;
}
.map-row-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.map-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.map-node {
  border: 1px solid var(--node-border);
  border-radius: 6px;
  padding: 12px 14px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--tag-text);
}
.map-node-lg { padding: 14px 16px; }
.map-node-dashed {
  border: 1px dashed rgba(255,255,255,0.2);
  padding: 12px 16px;
}
.map-sub {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--mono-muted);
  margin-top: 4px;
}
.map-dim { color: var(--mono-muted); }
.map-connector { display: flex; justify-content: center; }
.map-line {
  display: block;
  width: 1px;
  height: 22px;
  background: rgba(255,255,255,0.25);
}
.map-gateway {
  border: 1px solid color-mix(in srgb, var(--accent) 55%, transparent);
  background: color-mix(in srgb, var(--accent) 6%, transparent);
  border-radius: 6px;
  padding: 14px 18px;
  text-align: center;
}
.map-gateway-title {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--accent);
}

/* ===== PANELS / FIGURES ===== */
.panel {
  margin-top: 28px;
  background: var(--bg-panel);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 24px;
}
.figure {
  margin-top: 28px;
  background: var(--bg-panel);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  overflow: hidden;
}
.figure img { display: block; width: 100%; height: auto; }
.figure figcaption {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.03em;
  color: var(--mono-muted);
  border-top: 1px solid var(--card-border);
}
.panel > .mermaid {
  display: flex;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--mono-muted);
}
/* Equal-size decision diamonds: mermaid sizes the rhombus to the label box.
   Fixed narrow width wraps long labels instead of growing the diamond. */
.mm-decision { display: inline-block; width: 96px; white-space: normal; }
.mm-decision-sm { display: inline-block; min-width: 80px; }
.note {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mono-muted);
  margin-top: 14px;
}

/* ===== BUILD LOG TREE ===== */
.tree {
  background: var(--bg-panel);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.9;
  color: var(--tag-text);
  overflow-x: auto;
}
.tree .dir { color: var(--accent); }
.tree .dim { color: var(--mono-muted); }
.tree .indent { padding-left: 16px; }
.tree .indent-2 { padding-left: 32px; }
.tree .indent-3 { padding-left: 48px; }
.tree .gap { height: 10px; }
.text-link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--accent);
  text-decoration: none;
  margin-top: 18px;
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  padding-bottom: 2px;
}
.inline-link {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
}

/* ===== TABLES ===== */
.bp-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 24px;
}
.bp-table th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mono-muted);
  padding: 8px 12px;
  border-bottom: 1px solid var(--rule);
}
.bp-table td {
  padding: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.6;
  vertical-align: top;
}
.bp-table td:first-child {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--accent);
  white-space: nowrap;
}
.bp-table tr:last-child td { border-bottom: none; }

/* ===== CTA BANNER ===== */
.cta-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  margin-top: 28px;
  padding: 28px 32px;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  background: rgba(255,255,255,0.02);
}
.cta-title {
  font-size: 19px;
  font-weight: 600;
  color: var(--heading);
}
.cta-sub {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--muted);
  margin-top: 6px;
  max-width: 560px;
}
.btn-solid {
  flex-shrink: 0;
  background: var(--accent);
  color: #0a0c14;
  font-weight: 600;
  font-size: 13.5px;
  padding: 11px 22px;
  border-radius: 5px;
  text-decoration: none;
}

/* ===== RESOURCES ===== */
.resources-intro {
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 600px;
  text-wrap: pretty;
}

/* ===== FOOTER ===== */
.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 34px 0 52px;
  border-top: 1px solid var(--rule);
  margin-top: 24px;
}
.page-project .footer {
  padding: 40px 0;
  margin-top: 0;
}
.footer-copy {
  font-size: 14px;
  color: var(--muted);
}
.footer-links {
  display: flex;
  gap: 24px;
  font-family: var(--font-mono);
  font-size: 12.5px;
}
.footer-links a {
  color: var(--mono-muted);
  text-decoration: none;
  transition: color 0.15s;
}
.footer-links a:hover { color: var(--heading); }

/* ===== SPACING UTILITIES (last, so they win specificity ties) ===== */
.mt-0 { margin-top: 0; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-28 { margin-top: 28px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 800px) {
  .container { padding: 0 24px; }
  .grid-2, .grid-3, .grid-4, .split-why, .split-log { grid-template-columns: 1fr; }
  .split-why, .split-log { gap: 32px; }
  .work-row {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 28px 16px;
    margin: 0 -16px;
  }
  .log-row { grid-template-columns: 1fr; gap: 8px; }
  .details-btn { justify-self: start; }
  .map-row-4 { grid-template-columns: repeat(2, 1fr); }
  .cta-banner {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
  .footer { flex-wrap: wrap; gap: 12px; }
}