/* PipeToll — cloud egress FinOps-lite
   Pipe-deep #071A1F · teal #2EE6D6 · brass #D4A574 · no webfonts
   (system stacks only — font-display: swap N/A; if webfonts added later, set font-display: swap) */
:root {
  --deep: #071A1F; --deep-elev: #0C242C; --deep-line: #16343F; --deep-muted: #1E4552;
  --teal: #2EE6D6; --teal-dim: #1AA89C; --teal-glow: rgba(46, 230, 214, 0.14);
  --brass: #D4A574; --brass-dim: #A67B4B;
  --paper: #E6F1F0; --paper-dim: #B7CBC8;
  --ok: #3DCF8E; --warn: #E0B84A; --danger: #E86B6B; --unknown: #8FA8B0;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, monospace;
  --max: 72rem; --prose: 44rem; --radius: 12px;
  --shadow: 0 1px 0 rgba(255,255,255,0.04), 0 18px 50px rgba(0,0,0,0.4);
  --focus: 0 0 0 2px var(--deep), 0 0 0 4px var(--teal);
}
html { color-scheme: dark; scroll-padding-top: 5.5rem; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0; min-height: 100vh;
  font-family: var(--font-sans); font-size: 1.0625rem; line-height: 1.65;
  color: var(--paper);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(46,230,214,0.08), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(212,165,116,0.07), transparent 50%),
    linear-gradient(180deg, #0A2229 0%, var(--deep) 40%, #050F13 100%);
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--teal); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { color: #7FF5EA; }
a:focus-visible, button:focus-visible, .btn:focus-visible, summary:focus-visible,
.card:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: none; box-shadow: var(--focus); border-radius: 4px;
}
#main:focus { outline: none; }
.skip-link {
  position: absolute; left: 1rem; top: -100px; z-index: 1000;
  padding: 0.65rem 1.1rem; background: var(--teal); color: var(--deep);
  font-weight: 700; border-radius: 8px; text-decoration: none; min-height: 44px;
}
.skip-link:focus, .skip-link:focus-visible { top: 1rem; outline: none; box-shadow: var(--focus); }
.launch-banner {
  background: linear-gradient(90deg, rgba(46,230,214,0.12), rgba(212,165,116,0.1));
  border-bottom: 1px solid var(--deep-line);
  padding: 0.65rem 1.25rem; text-align: center; font-size: 0.92rem; color: var(--paper-dim);
}
.launch-banner strong { color: var(--brass); }
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(7,26,31,0.86);
  border-bottom: 1px solid var(--deep-line);
}
.header-inner, .footer-inner, .wrap { width: min(100% - 2rem, var(--max)); margin-inline: auto; }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: 3.75rem; padding: 0.35rem 0;
}
.brand {
  display: inline-flex; align-items: center; gap: 0.65rem;
  color: var(--paper); text-decoration: none; font-weight: 750; letter-spacing: -0.02em;
  min-height: 44px;
}
.brand-mark { width: 36px; height: 36px; flex-shrink: 0; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text small { font-weight: 500; font-size: 0.72rem; color: var(--paper-dim); letter-spacing: 0.04em; text-transform: uppercase; }
.nav { display: flex; flex-wrap: wrap; gap: 0.25rem 0.85rem; align-items: center; }
.nav a {
  color: var(--paper-dim); text-decoration: none; font-size: 0.95rem;
  padding: 0.55rem 0.35rem; min-height: 44px; display: inline-flex; align-items: center;
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--teal); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  min-height: 44px; min-width: 44px; padding: 0.65rem 1.15rem;
  border-radius: 999px; border: 1px solid transparent;
  font-weight: 650; font-size: 0.95rem; text-decoration: none; cursor: pointer; font-family: inherit;
}
.btn-primary { background: var(--teal); color: var(--deep); }
.btn-primary:hover { background: #7FF5EA; color: var(--deep); }
.btn-ghost { background: transparent; color: var(--paper); border-color: var(--deep-line); }
.btn-ghost:hover { border-color: var(--teal); color: var(--teal); }
.hero {
  padding: 3.25rem 0 2.5rem; display: grid; gap: 2rem;
  grid-template-columns: 1.2fr 0.8fr; align-items: center;
}
@media (max-width: 860px) { .hero { grid-template-columns: 1fr; padding-top: 2rem; } }
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.45rem;
  font-family: var(--font-mono); font-size: 0.78rem; color: var(--brass);
  letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 0.85rem;
}
.eyebrow::before { content: ""; width: 1.5rem; height: 2px; background: var(--brass); }
h1 {
  font-size: clamp(1.75rem, 3.5vw, 2.55rem); line-height: 1.18;
  letter-spacing: -0.03em; margin: 0 0 1rem; max-width: 18ch;
}
.lede { font-size: 1.125rem; color: var(--paper-dim); max-width: 40rem; margin: 0 0 1.5rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.pipe-visual {
  position: relative; min-height: 220px; border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(46,230,214,0.09), transparent 50%), var(--deep-elev);
  border: 1px solid var(--deep-line); box-shadow: var(--shadow);
  overflow: hidden; padding: 1.25rem;
}
.pipe-visual svg { width: 100%; height: auto; }
.meter { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.65rem; margin-top: 1rem; }
.meter div {
  background: rgba(0,0,0,0.25); border: 1px solid var(--deep-line);
  border-radius: 10px; padding: 0.65rem 0.75rem;
}
.meter strong { display: block; font-family: var(--font-mono); color: var(--teal); font-size: 0.95rem; }
.meter span { font-size: 0.78rem; color: var(--paper-dim); }
.section { padding: 2.5rem 0; }
.section h2 { font-size: 1.45rem; letter-spacing: -0.02em; margin: 0 0 0.75rem; }
.section-lead { color: var(--paper-dim); max-width: var(--prose); margin: 0 0 1.5rem; }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fill, minmax(16.5rem, 1fr)); }
.card {
  display: flex; flex-direction: column; gap: 0.55rem;
  background: var(--deep-elev); border: 1px solid var(--deep-line);
  border-radius: var(--radius); padding: 1.15rem 1.2rem; text-decoration: none;
  color: inherit; box-shadow: var(--shadow); min-height: 44px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
a.card:hover { border-color: var(--teal-dim); transform: translateY(-2px); }
.card:focus-within {
  border-color: var(--teal-dim);
  box-shadow: var(--focus), var(--shadow);
}
.card h3 { margin: 0; font-size: 1.05rem; color: var(--paper); letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--paper-dim); font-size: 0.95rem; flex: 1; }
.card .tag {
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--brass);
  text-transform: uppercase; letter-spacing: 0.05em;
}
.prose { max-width: var(--prose); }
.prose h2 { margin-top: 2rem; }
.prose h3 { margin-top: 1.4rem; font-size: 1.1rem; }
.prose p, .prose li { color: var(--paper-dim); }
.prose strong { color: var(--paper); }
.table-wrap { overflow-x: auto; margin: 1.25rem 0; border: 1px solid var(--deep-line); border-radius: var(--radius); }
.table-wrap:focus-visible { outline: none; box-shadow: var(--focus); }
table { width: 100%; border-collapse: collapse; font-size: 0.92rem; min-width: 36rem; }
th, td { padding: 0.75rem 0.9rem; text-align: left; border-bottom: 1px solid var(--deep-line); vertical-align: top; }
th { background: rgba(46,230,214,0.06); color: var(--teal); font-weight: 650; }
tr:last-child td { border-bottom: 0; }
.badge {
  display: inline-flex; align-items: center; min-height: 28px;
  padding: 0.15rem 0.55rem; border-radius: 999px; font-size: 0.75rem; font-weight: 650;
  font-family: var(--font-mono);
}
.badge-unknown { background: rgba(143,168,176,0.18); color: var(--unknown); border: 1px solid rgba(143,168,176,0.35); }
.badge-edu { background: var(--teal-glow); color: var(--teal); border: 1px solid rgba(46,230,214,0.3); }
.calc-panel {
  background: var(--deep-elev); border: 1px solid var(--deep-line);
  border-radius: var(--radius); padding: 1.35rem; box-shadow: var(--shadow); max-width: 36rem;
}
.calc-panel label { display: block; font-size: 0.88rem; color: var(--paper-dim); margin: 0.85rem 0 0.35rem; }
.calc-panel input, .calc-panel select {
  width: 100%; min-height: 44px; padding: 0.55rem 0.75rem;
  border-radius: 10px; border: 1px solid var(--deep-line);
  background: var(--deep); color: var(--paper); font: inherit;
}
.calc-out {
  margin-top: 1.15rem; padding: 1rem; border-radius: 10px;
  background: rgba(46,230,214,0.08); border: 1px dashed rgba(46,230,214,0.35);
}
.calc-out strong { font-family: var(--font-mono); font-size: 1.35rem; color: var(--teal); }
.disclaimer {
  margin-top: 1rem; font-size: 0.88rem; color: var(--brass);
  border-left: 3px solid var(--brass); padding-left: 0.85rem;
}
.site-footer {
  margin-top: 3rem; border-top: 1px solid var(--deep-line);
  background: #050F13; padding: 2.5rem 0 2rem; color: var(--paper-dim); font-size: 0.92rem;
}
.footer-grid { display: grid; gap: 1.5rem; grid-template-columns: 1.4fr 1fr 1fr; }
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer a { color: var(--paper-dim); }
.site-footer a:hover { color: var(--teal); }
.footer-brand { color: var(--paper); font-weight: 700; margin-bottom: 0.35rem; }
.footer-meta { margin-top: 2rem; padding-top: 1rem; border-top: 1px solid var(--deep-line); font-size: 0.82rem; }
.crumb { font-size: 0.88rem; color: var(--paper-dim); margin: 1.25rem 0 0.5rem; }
.crumb a { color: var(--paper-dim); }
.page-hero { padding: 1.5rem 0 0.5rem; }
.page-hero h1 { max-width: 28ch; }
.faq details {
  background: var(--deep-elev); border: 1px solid var(--deep-line);
  border-radius: 10px; padding: 0.35rem 1rem; margin-bottom: 0.65rem;
}
.faq summary {
  cursor: pointer; min-height: 44px; display: flex; align-items: center;
  font-weight: 650; color: var(--paper);
}
.faq details p { color: var(--paper-dim); margin-top: 0; }
.dl-grid { display: grid; gap: 1rem; }
.dl-grid dt { font-weight: 700; color: var(--teal); margin-top: 0.5rem; }
.dl-grid dd { margin: 0.25rem 0 0; color: var(--paper-dim); }
.teaser-calc { display: grid; gap: 0.75rem; grid-template-columns: 1fr 1fr auto; align-items: end; }
@media (max-width: 640px) { .teaser-calc { grid-template-columns: 1fr; } }
.teaser-calc label { font-size: 0.85rem; color: var(--paper-dim); display: block; margin-bottom: 0.3rem; }
.teaser-calc input {
  width: 100%; min-height: 44px; padding: 0.5rem 0.7rem; border-radius: 10px;
  border: 1px solid var(--deep-line); background: var(--deep); color: var(--paper); font: inherit;
}

/* Batch-1: calculator modes, related, sources, CWV helpers */
.mode-tabs { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0 0 1rem; }
.mode-tabs button {
  min-height: 44px; padding: 0.55rem 0.95rem; border-radius: 999px;
  border: 1px solid var(--deep-line); background: var(--deep); color: var(--paper-dim);
  font: inherit; font-weight: 650; cursor: pointer;
}
.mode-tabs button:focus-visible {
  outline: none; box-shadow: var(--focus);
}
.mode-tabs button.is-active, .mode-tabs button[aria-selected="true"] {
  background: var(--teal-glow); color: var(--teal); border-color: rgba(46,230,214,0.4);
}
.calc-breakdown { margin-top: 0.45rem; font-size: 0.85rem; color: var(--paper-dim); }
.related-block, .sources-block, .worked-block, .spoke-faq {
  margin: 2rem 0; padding: 1.15rem 1.25rem; border-radius: var(--radius);
  background: var(--deep-elev); border: 1px solid var(--deep-line);
}
.related-block h2, .sources-block h2, .worked-block h2, .spoke-faq h2 {
  margin: 0 0 0.75rem; font-size: 1.15rem;
}
.related-block ul, .sources-block ol { margin: 0.35rem 0 0; padding-left: 1.2rem; }
.related-block li, .sources-block li { color: var(--paper-dim); margin: 0.35rem 0; }
.updated-line {
  font-size: 0.88rem; color: var(--paper-dim); margin: 0.35rem 0 1rem;
  font-family: var(--font-mono);
}
.updated-line time { color: var(--brass); }
.subhead-target {
  font-size: 1rem; color: var(--brass); margin: -0.5rem 0 1.25rem; max-width: 42rem;
}
.calc-panel[hidden], [data-calc-mode][hidden] { display: none !important; }
.mode-panel { margin-top: 0.25rem; }
.mode-panel:focus-visible { outline: none; box-shadow: var(--focus); }

/* A11y batch-1: mobile nav, scroll-margin, card/article */
h2[id], h3[id], [id] { scroll-margin-top: 5.5rem; }
.header-inner { flex-wrap: wrap; }
.nav-toggle {
  display: none; min-height: 44px; min-width: 44px; padding: 0.5rem 0.85rem;
  border-radius: 10px; border: 1px solid var(--deep-line); background: var(--deep);
  color: var(--paper); font: inherit; font-weight: 650; cursor: pointer;
}
@media (max-width: 720px) {
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .nav { display: none; width: 100%; flex-direction: column; align-items: stretch; padding-bottom: 0.75rem; }
  .nav.is-open { display: flex; }
  .nav a { min-height: 44px; }
  .header-inner { align-items: flex-start; }
}
article.card h3 { margin: 0; font-size: 1.05rem; letter-spacing: -0.01em; }
article.card h3 a { color: var(--paper); text-decoration: none; }
article.card h3 a:hover { color: var(--teal); }
article.card { cursor: default; }
caption {
  caption-side: top; text-align: left; padding: 0.75rem 0.9rem 0.35rem;
  color: var(--brass); font-size: 0.88rem; font-family: var(--font-mono);
}
nav.crumb { font-size: 0.88rem; color: var(--paper-dim); margin: 1.25rem 0 0.5rem; }
nav.crumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 0.35rem; margin: 0; padding: 0; }
nav.crumb li { display: inline-flex; align-items: center; gap: 0.35rem; }
nav.crumb li:not(:last-child)::after { content: "/"; color: var(--deep-muted); margin-left: 0.15rem; }
nav.crumb a { color: var(--paper-dim); }

.teaser-est-label { font-size: 0.85rem; color: var(--paper-dim); display: block; margin-bottom: 0.3rem; }
.calc-path-context { margin: 1rem 0 0; padding: 0.75rem 1rem; border: 1px solid var(--deep-line); border-radius: 12px; background: rgba(46,230,214,0.06); max-width: 40rem; }
.calc-path-context[hidden] { display: none !important; }
@media (max-width: 720px) {
  .header-inner { flex-wrap: wrap; }
}

/* Batch-5: direct-answer + AdSense stub slots (no live ads.js) */
.direct-answer {
  margin: 0.75rem 0 1.25rem; padding: 0.85rem 1rem; max-width: 42rem;
  border-left: 3px solid var(--teal); background: rgba(46,230,214,0.06);
  border-radius: 0 10px 10px 0; color: var(--paper-dim); font-size: 0.98rem;
}
.ad-slot {
  margin: 2rem 0 0; padding: 0.75rem 1rem; min-height: 0;
  border: 1px dashed var(--deep-line); border-radius: var(--radius);
  background: transparent; color: var(--deep-muted); font-size: 0.75rem;
  font-family: var(--font-mono);
}
.ad-slot[aria-hidden="true"] { /* layout reserved; invisible to AT until ca-pub live */ }
.ad-slot--after-fold { margin-top: 2.5rem; }

/* Batch-6: empty AdSense stub UX — no dashed ghosts while awaiting_ca_pub */
.ad-slot[data-ad-status="awaiting_ca_pub"] {
  display: none !important;
}
/* Live path (when ca-pub configured): data-ad-status=live, drop aria-hidden, aria-label=Advertisement */
.ad-slot[data-ad-status="live"],
.ad-slot[data-ad-status="live_pending_site_approval"],
.ad-slot--live {
  display: block;
  min-height: 90px;
  margin-top: 2.5rem;
}


/* Batch-7 A11y: AdSense go-live contract (comments + readiness — NOT live ads)
   - awaiting_ca_pub: display:none + aria-hidden (syncAdSlots)
   - on go-live: data-ad-status=live, drop aria-hidden, aria-label="Advertisement"
   - on inject: iframe title="Advertisement"; do not trap focus
   - never paint --deep-muted placeholder copy inside slots (contrast ~1.72:1)
*/
@media (forced-colors: active) {
  a:focus-visible, button:focus-visible, .btn:focus-visible, summary:focus-visible,
  .card:focus-visible, .card:focus-within, input:focus-visible, select:focus-visible, textarea:focus-visible,
  .mode-tabs button:focus-visible, .mode-panel:focus-visible, .table-wrap:focus-visible,
  .skip-link:focus-visible {
    outline: 2px solid transparent; outline-offset: 2px;
    box-shadow: none;
  }
}


/* Batch-8: compare journeys + clusters + glossary A–Z */
.journey-grid { margin: 1rem 0 2rem; }
.journey-card .journey-links { margin: 0.65rem 0 0; padding-left: 1.15rem; color: var(--paper-dim); }
.journey-card .journey-links li { margin: 0.25rem 0; }
.cluster { margin: 1.75rem 0 2rem; }
.cluster > h3 { margin: 0 0 0.75rem; font-size: 1.15rem; color: var(--paper); letter-spacing: -0.01em; }
.az-jump { margin: 1rem 0 1.5rem; }
.az-jump ol {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 0.35rem 0.5rem;
}
.az-jump a {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 44px; min-height: 44px; padding: 0.35rem 0.55rem;
  border: 1px solid var(--line, #1E4552); border-radius: 0.4rem;
  color: var(--teal, #2EE6D6); text-decoration: none; font-size: 0.9rem;
}
.az-jump a:hover { border-color: var(--teal, #2EE6D6); }
.glossary-letter {
  margin: 1.75rem 0 0.5rem; font-size: 1.25rem; color: var(--teal, #2EE6D6);
  letter-spacing: 0.04em;
}
.glossary-letter:first-of-type { margin-top: 0.5rem; }


/* Batch-9 CWV + a11y: live_pending slots keep .ad-slot--live min-height (no invented copy);
   AT exposes Advertisement only when iframe/ins.adsbygoogle present (nav.js syncAdSlots).
   .az-jump a ≥44×44; forced-colors includes .card:focus-within. */