/* ============================================================
   GTMpro · v7 — Blueprint Atlas
   The same constellation, drawn in ink and pale blue on warm
   paper. Bricolage Grotesque display, JetBrains Mono chips,
   rubber-stamp badges, wavy underlines, one squiggle.
   ============================================================ */

:root {
  --bg:            #ffffff;
  --bg-soft:       #f8f9fb;
  --bg-card:       #fbfcfe;
  --bg-elevated:   #ffffff;

  --ink:           #16181d;
  --text:          #16181d;
  --text-soft:     #454a54;
  --text-muted:    #646a75;
  --text-dim:      #8e94a0;

  --accent:        #5b9fdd;
  --accent-deep:   #2f6ba3;
  --accent-text:   #27567f;
  --accent-wash:   rgba(91, 159, 221, 0.12);

  --border:        rgba(22, 24, 29, 0.10);
  --border-strong: rgba(22, 24, 29, 0.20);
  --grid-line:     rgba(47, 107, 163, 0.035);

  --font-sans:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Bricolage Grotesque', 'Inter', sans-serif;
  --font-serif:   'Bricolage Grotesque', 'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --max-w: 1180px;
  --side:  clamp(28px, 5vw, 72px);
  --gap-section: clamp(96px, 14vw, 170px);
  --gap-section-tight: clamp(56px, 9vw, 100px);

  --shadow-card: 0 2px 6px rgba(22, 40, 70, 0.05), 0 14px 40px rgba(22, 40, 70, 0.08);

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---- Base ---- */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  overflow-x: hidden;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
strong { font-weight: 600; color: var(--text); }
::selection { background: rgba(91, 159, 221, 0.35); color: var(--ink); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 12px;
  padding: 8px 16px;
  background: var(--ink);
  color: var(--bg);
  border-radius: 4px;
  z-index: 200;
  font-size: 0.85rem;
  font-weight: 600;
}
.skip-link:focus { left: 12px; }

/* ---- Container ---- */

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--side);
  width: 100%;
  position: relative;
}

/* ---- Ambient layers: graph paper, ink chart, paper grain ---- */

.graph-bg {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 1;
  opacity: 0.9;
}

.grid-overlay {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px) 0 0/96px 96px,
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px) 0 0/96px 96px;
  mask-image: radial-gradient(ellipse at center,
                              rgba(0,0,0,1) 30%,
                              rgba(0,0,0,0.5) 65%,
                              rgba(0,0,0,0) 100%);
}

.noise {
  position: fixed;
  inset: 0;
  z-index: 5;
  pointer-events: none;
  opacity: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 160px 160px;
}

/* ---- Scroll progress hairline ---- */

.progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  z-index: 80;
  background: var(--accent);
  transform-origin: 0 50%;
  transform: scaleX(0);
  pointer-events: none;
}

/* ---- Hero entrance ---- */

.enter {
  opacity: 0;
  transform: translateY(22px);
  animation: enter-up 0.9s var(--ease) forwards;
}
.enter-1 { animation-delay: 0.05s; }
.enter-2 { animation-delay: 0.16s; }
.enter-3 { animation-delay: 0.30s; }
.enter-4 { animation-delay: 0.44s; }
@keyframes enter-up {
  to { opacity: 1; transform: none; }
}

/* ---- Brand mark ---- */

.brand-dot {
  display: inline-block;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-wash);
  flex-shrink: 0;
}
.brand-dot--sm { width: 8px; height: 8px; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--text);
}

/* ---- Navigation ---- */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px var(--side);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(14px) saturate(1.1);
  -webkit-backdrop-filter: blur(14px) saturate(1.1);
  border-bottom: 1px solid var(--border);
}

.nav-links { display: flex; align-items: center; gap: 28px; }

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  transition: color 0.18s var(--ease);
}
.nav-link:hover, .nav-link:focus-visible {
  color: var(--accent-text);
  outline: none;
  text-decoration: underline wavy var(--accent) 1.5px;
  text-underline-offset: 5px;
}

.nav-link--cta {
  color: var(--bg) !important;
  background: var(--ink);
  padding: 9px 18px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none !important;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.nav-link--cta:hover {
  background: var(--accent-deep);
  transform: translateY(-1px) rotate(-1deg);
  box-shadow: 0 4px 18px rgba(47, 107, 163, 0.30);
}

@media (max-width: 720px) {
  .nav { padding: 12px var(--side); }
  .nav-links { gap: 18px; }
  .nav-link:not(.nav-link--cta) { display: none; }
  .nav-link--cta { padding: 7px 14px; font-size: 0.7rem; }
}

/* ---- Main ---- */

main { position: relative; z-index: 6; }

/* ---- Hero ---- */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding: 120px 0 var(--gap-section-tight);
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent-text);
  margin-bottom: 36px;
  padding: 8px 16px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: var(--bg-card);
  transform: rotate(-0.6deg);
}
.kicker-star {
  font-size: 0.85rem;
  color: var(--accent);
  animation: star-spin 14s linear infinite;
  display: inline-block;
}
@keyframes star-spin {
  to { transform: rotate(360deg); }
}

.display {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.6rem, 6.4vw, 5.5rem);
  line-height: 1.0;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: 38px;
  padding-bottom: 0.08em;
  max-width: 20ch;
  font-variation-settings: "opsz" 96;
}

.display-serif, .title-serif {
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--accent-deep);
}
.display-serif {
  position: relative;
  display: inline-block;
  line-height: 1.1;
  padding-bottom: 0.14em;
}

.rotate-word {
  display: inline-block;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}
.rotate-word.is-out {
  opacity: 0;
  transform: translateY(0.3em);
}

.squiggle {
  position: absolute;
  left: 0;
  bottom: -0.08em;
  width: 100%;
  height: 0.22em;
  overflow: visible;
}
.squiggle path {
  stroke: var(--accent);
  stroke-width: 4;
  stroke-linecap: round;
  fill: none;
  stroke-dasharray: 320;
  stroke-dashoffset: 320;
  animation: squiggle-draw 0.9s var(--ease) 0.9s forwards;
}
@keyframes squiggle-draw {
  to { stroke-dashoffset: 0; }
}

.lede {
  font-family: var(--font-sans);
  font-size: clamp(1.05rem, 1.45vw, 1.2rem);
  font-weight: 400;
  color: var(--text-soft);
  max-width: 620px;
  line-height: 1.7;
  margin-bottom: 46px;
}

.hero-line {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 2.4vw, 1.85rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: -6px 0 14px;
}

.hero-coord {
  position: absolute;
  bottom: 34px;
  right: var(--side);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  color: var(--text-dim);
  writing-mode: vertical-rl;
  text-orientation: mixed;
}
@media (max-width: 900px) { .hero-coord { display: none; } }

.cta-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 30px;
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  border: 1.5px solid var(--ink);
  border-radius: 999px;
  cursor: pointer;
  overflow: hidden;
  transition: all 0.25s var(--ease);
}
.btn--primary {
  background: var(--ink);
  color: var(--bg);
  box-shadow: 0 4px 18px rgba(31, 30, 27, 0.14);
}
.btn--primary:hover {
  background: var(--accent-deep);
  border-color: var(--accent-deep);
  transform: translateY(-2px) rotate(-0.8deg);
  box-shadow: 0 8px 28px rgba(47, 107, 163, 0.35);
}
.btn--primary:active { transform: translateY(0) scale(0.98); }
.btn--ghost {
  color: var(--ink);
  background: transparent;
  border-color: var(--border-strong);
}
.btn--ghost:hover {
  border-color: var(--accent-deep);
  color: var(--accent-deep);
  transform: translateY(-2px) rotate(0.8deg);
}
.btn--ghost:active { transform: translateY(0) scale(0.98); }
.btn .arrow, .btn .ext {
  transition: transform 0.2s var(--ease);
  display: inline-block;
}
.btn--primary:hover .arrow { transform: translateX(4px); }
.btn--ghost:hover .arrow { transform: translateY(2px); }

/* ---- Marquee ---- */

.marquee {
  position: relative;
  z-index: 6;
  overflow: hidden;
  border-top: 1.5px solid var(--ink);
  border-bottom: 1.5px solid var(--ink);
  padding: 16px 0;
  background: var(--bg-card);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track {
  display: inline-flex;
  align-items: center;
  gap: 36px;
  white-space: nowrap;
  animation: marquee-scroll 52s linear infinite;
  will-change: transform;
}
.marquee-track span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-soft);
}
.marquee-track i {
  font-style: normal;
  font-size: 0.7rem;
  color: var(--accent);
}
@keyframes marquee-scroll {
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; }
}

/* ---- Section base ---- */

.section {
  position: relative;
  padding: var(--gap-section) 0;
}
.section--contact {
  text-align: center;
}

/* Ghost numerals: chart art, not content */

.section-ghost {
  position: absolute;
  top: clamp(24px, 5vw, 56px);
  right: var(--side);
  z-index: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(6rem, 16vw, 13rem);
  line-height: 0.8;
  letter-spacing: -0.02em;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(91, 159, 221, 0.35);
  user-select: none;
  pointer-events: none;
  transform: rotate(2deg);
}
.section-ghost--center {
  right: auto;
  left: 50%;
  transform: translateX(-50%) rotate(-2deg);
}

/* Section headers */

.section-head {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  align-items: baseline;
  max-width: 720px;
  margin-bottom: clamp(48px, 7vw, 76px);
  padding-bottom: 28px;
  border-bottom: 1.5px solid var(--ink);
}
.section-head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1.5px;
  width: 80px;
  height: 1.5px;
  background: var(--accent);
}
.section-head--center {
  grid-template-columns: 1fr;
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}
.section-head--center::after {
  left: 50%;
  transform: translateX(-50%);
}
.section-head--center .section-num {
  display: block;
  margin-bottom: 8px;
}

.section-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--accent-text);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 750;
  font-size: clamp(1.8rem, 3.4vw, 2.8rem);
  line-height: 1.12;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin-bottom: 10px;
  font-variation-settings: "opsz" 80;
}
.section-title .title-serif { font-size: 1.02em; }

.section-sub {
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--text-soft);
  line-height: 1.6;
  max-width: 56ch;
}
.section-head--center .section-sub { margin-left: auto; margin-right: auto; }

/* ---- Catalogue ---- */

.catalog {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border);
}

.cat-row {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}
.cat-row.revealed { opacity: 1; transform: translateY(0); }
.cat-row:nth-child(2).revealed { transition-delay: 0.06s; }
.cat-row:nth-child(3).revealed { transition-delay: 0.12s; }
.cat-row:nth-child(4).revealed { transition-delay: 0.18s; }

.cat-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.3rem, 2vw, 1.7rem);
  line-height: 1;
  letter-spacing: -0.01em;
  color: transparent;
  -webkit-text-stroke: 1px var(--accent-deep);
  padding-top: 2px;
}

.cat-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.2rem, 2.1vw, 1.5rem);
  letter-spacing: -0.018em;
  color: var(--ink);
  margin-bottom: 12px;
  transition: color 0.2s var(--ease);
}
.cat-row:hover .cat-name { color: var(--accent-deep); }

.cat-desc {
  font-family: var(--font-sans);
  font-size: 0.98rem;
  color: var(--text-soft);
  line-height: 1.7;
  max-width: 60ch;
  margin-bottom: 18px;
}

.cat-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.cat-tags span {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  padding: 4px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: var(--bg-card);
  transition: all 0.2s var(--ease);
}
.cat-row:hover .cat-tags span {
  border-color: var(--accent);
  color: var(--accent-text);
}
.cat-row:hover .cat-tags span:nth-child(odd)  { transform: rotate(-1.5deg); }
.cat-row:hover .cat-tags span:nth-child(even) { transform: rotate(1.5deg); }

.cat-tags--proof a {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--accent-text);
  padding: 4px 10px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: var(--bg-card);
  text-decoration: none;
  transition: all 0.2s var(--ease);
}
.cat-tags--proof a:hover {
  background: var(--accent-wash);
  border-color: var(--accent-deep);
}

.cat-audit {
  margin-top: 32px;
  padding: 24px 28px;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  background: var(--bg-card);
  max-width: 62ch;
}
.cat-audit p {
  font-family: var(--font-sans);
  font-size: 0.98rem;
  color: var(--text-soft);
  line-height: 1.7;
}

/* ---- Systems ---- */

.systems {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.sys-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 32px 32px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  overflow: hidden;
  /* chart corner ticks */
  background-image:
    linear-gradient(rgba(91,159,221,0.6), rgba(91,159,221,0.6)),
    linear-gradient(rgba(91,159,221,0.6), rgba(91,159,221,0.6)),
    linear-gradient(rgba(91,159,221,0.6), rgba(91,159,221,0.6)),
    linear-gradient(rgba(91,159,221,0.6), rgba(91,159,221,0.6)),
    linear-gradient(rgba(91,159,221,0.6), rgba(91,159,221,0.6)),
    linear-gradient(rgba(91,159,221,0.6), rgba(91,159,221,0.6)),
    linear-gradient(rgba(91,159,221,0.6), rgba(91,159,221,0.6)),
    linear-gradient(rgba(91,159,221,0.6), rgba(91,159,221,0.6));
  background-repeat: no-repeat;
  background-size: 10px 1px, 1px 10px, 10px 1px, 1px 10px,
                   10px 1px, 1px 10px, 10px 1px, 1px 10px;
  background-position: 14px 14px, 14px 14px,
                       calc(100% - 14px) 14px, calc(100% - 14px) 14px,
                       14px calc(100% - 14px), 14px calc(100% - 14px),
                       calc(100% - 14px) calc(100% - 14px), calc(100% - 14px) calc(100% - 14px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease),
              border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
  opacity: 0;
  transform: translateY(16px);
}
.sys-card--wide { grid-column: 1 / -1; }

.sys-card.revealed { opacity: 1; transform: translateY(0); }
.sys-card:nth-child(2).revealed { transition-delay: 0.06s; }
.sys-card:nth-child(3).revealed { transition-delay: 0.12s; }
.sys-card:nth-child(4).revealed { transition-delay: 0.18s; }
.sys-card:hover {
  border-color: var(--ink);
  box-shadow: var(--shadow-card);
  transform: translateY(-4px) rotate(-0.4deg);
}
.sys-card--wide:hover { transform: translateY(-4px); }

.sys-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.sys-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: -0.018em;
  color: var(--ink);
}

/* Rubber-stamp status badges */
.sys-status {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-text);
  white-space: nowrap;
  padding: 4px 10px;
  border: 1.5px dashed var(--accent);
  border-radius: 6px;
  transform: rotate(-2deg);
  transition: transform 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.sys-card:hover .sys-status { transform: rotate(0deg); }
.sys-status--link:hover {
  color: var(--bg);
  background: var(--accent-deep);
  border-color: var(--accent-deep);
  border-style: solid;
}

.sys-desc {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text-soft);
  line-height: 1.7;
  margin-bottom: 20px;
  flex: 1;
}
.sys-desc a {
  color: var(--accent-text);
  border-bottom: 1px solid var(--accent);
  transition: color 0.2s var(--ease);
}
.sys-desc a:hover { color: var(--accent-deep); }

.sys-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.sys-tags span {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  padding: 4px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: var(--bg);
  transition: all 0.2s var(--ease);
}
.sys-card:hover .sys-tags span {
  border-color: var(--accent);
  color: var(--accent-text);
}

.systems-foot {
  position: relative;
  z-index: 1;
  margin-top: 28px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}
.systems-foot a {
  color: var(--accent-text);
  transition: color 0.2s var(--ease);
}
.systems-foot a:hover {
  color: var(--accent-deep);
  text-decoration: underline wavy var(--accent) 1.5px;
  text-underline-offset: 5px;
}

@media (max-width: 800px) {
  .systems { grid-template-columns: 1fr; }
}

/* ---- Client work ---- */

.cases {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: clamp(48px, 6vw, 80px);
}

.case {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.case.revealed { opacity: 1; transform: translateY(0); }
.case:nth-child(2).revealed { transition-delay: 0.1s; }

.case-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.2rem, 4vw, 3rem);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.2px var(--accent-deep);
  letter-spacing: -0.02em;
  padding-top: 4px;
}

.case-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: 14px;
}

.case-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.4rem, 2.5vw, 1.85rem);
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--ink);
  margin-bottom: 22px;
  max-width: 30ch;
}

.case-prose {
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--text-soft);
  line-height: 1.75;
  max-width: 70ch;
  margin-bottom: 28px;
}

.case-result {
  padding: 22px 26px;
  background: var(--accent-wash);
  border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0;
  max-width: 70ch;
}
.result-key {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: 8px;
}
.result-val {
  font-family: var(--font-sans);
  font-size: 0.98rem;
  color: var(--text-soft);
  line-height: 1.7;
}

@media (max-width: 720px) {
  .case { grid-template-columns: 1fr; gap: 16px; }
  .case-num { font-size: 2rem; }
}

/* ---- Engagements ---- */

.engage {
  position: relative;
  z-index: 1;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-strong);
  border: 1.5px solid var(--ink);
  border-radius: 14px;
  overflow: hidden;
}

.engage-item {
  background: var(--bg-card);
  padding: 34px 30px;
  display: grid;
  grid-template-columns: 28px 1fr;
  grid-template-rows: auto auto auto;
  gap: 4px 16px;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease), background 0.3s var(--ease);
}
.engage-item.revealed { opacity: 1; transform: translateY(0); }
.engage-item:nth-child(2).revealed { transition-delay: 0.08s; }
.engage-item:nth-child(3).revealed { transition-delay: 0.16s; }
.engage-item:hover { background: var(--bg-elevated); }

.engage-roman {
  grid-row: 1 / 3;
  grid-column: 1;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--accent-deep);
  letter-spacing: 0.05em;
  padding-top: 4px;
}
.engage-name {
  grid-column: 2;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.018em;
  margin-bottom: 2px;
}
.engage-span {
  grid-column: 2;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: 12px;
}
.engage-desc {
  grid-column: 1 / -1;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  color: var(--text-soft);
  line-height: 1.65;
  margin-top: 4px;
}

@media (max-width: 800px) {
  .engage { grid-template-columns: 1fr; }
}

/* ---- Contact ---- */

.section--contact .container {
  max-width: 760px;
}

.contact-row {
  position: relative;
  z-index: 1;
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 18px;
  font-family: var(--font-display);
}

.contact-link {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.2rem, 2.6vw, 1.7rem);
  color: var(--ink);
  letter-spacing: -0.01em;
  padding-bottom: 4px;
  border-bottom: 2px solid var(--accent);
  transition: color 0.2s var(--ease);
}
.contact-link:hover {
  color: var(--accent-deep);
  border-bottom: none;
  text-decoration: underline wavy var(--accent) 2px;
  text-underline-offset: 7px;
}
.contact-link--primary { font-weight: 600; }
.contact-sep { color: var(--text-muted); }

/* ---- Footer ---- */

.footer {
  position: relative;
  z-index: 6;
  padding: 36px 0;
  border-top: 1.5px solid var(--ink);
  background: var(--bg-card);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
}

.footer-meta {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

@media (max-width: 720px) {
  .footer-inner { justify-content: flex-start; gap: 10px; }
  .footer-meta:nth-child(2) { display: none; }
}

/* ---- Reduced motion ---- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-delay: 0ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .cat-row, .sys-card, .case, .engage-item { opacity: 1; transform: none; }
  .enter { animation: none; opacity: 1; transform: none; }
  .kicker-star, .marquee-track { animation: none !important; }
  .squiggle path { animation: none; stroke-dashoffset: 0; }
}

/* ---- Focus ---- */

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent-deep);
  outline-offset: 3px;
  border-radius: 4px;
}

/* =====================================================
   Platform page (v9): problem, stack, pillars, ways in
   ===================================================== */

/* ---- Failure gallery ---- */

.fails {
  position: relative;
  z-index: 1;
  list-style: none;
  border-top: 1px solid var(--border);
}
.fail {
  display: grid;
  grid-template-columns: 64px 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}
.fail.revealed { opacity: 1; transform: translateY(0); }
.fail:nth-child(2).revealed { transition-delay: 0.05s; }
.fail:nth-child(3).revealed { transition-delay: 0.10s; }
.fail:nth-child(4).revealed { transition-delay: 0.15s; }
.fail:nth-child(5).revealed { transition-delay: 0.20s; }
.fail:nth-child(6).revealed { transition-delay: 0.25s; }
.fail-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  color: transparent;
  -webkit-text-stroke: 1px var(--accent-deep);
}
.fail-text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  letter-spacing: -0.015em;
  color: var(--ink);
}
.stamp {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-text);
  white-space: nowrap;
  padding: 6px 12px;
  border: 1.5px dashed var(--accent);
  border-radius: 6px;
  background: var(--bg-card);
  transform: rotate(-2deg);
  transition: transform 0.2s var(--ease);
}
.fail:nth-child(even) .stamp { transform: rotate(1.5deg); }
.fail:hover .stamp { transform: rotate(0deg); border-style: solid; }

@media (max-width: 720px) {
  .fail { grid-template-columns: 40px 1fr; gap: 10px 14px; }
  .fail .stamp { grid-column: 2; justify-self: start; white-space: normal; }
}

/* ---- Pull quote ---- */

.pull {
  position: relative;
  z-index: 1;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.3rem, 2.6vw, 1.9rem);
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 30ch;
  margin: 0 0 40px;
  padding-left: 22px;
  border-left: 3px solid var(--accent);
}
.pull .hl {
  color: var(--accent-deep);
  text-decoration: underline wavy var(--accent) 2px;
  text-underline-offset: 6px;
}

/* ---- Figures and diagrams ---- */

.fig {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
}
.fig--tight { padding: 16px; }
.fig-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.fig figcaption, .shot figcaption {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--text-muted);
  line-height: 1.6;
}
.shot figcaption { padding: 0 16px 14px; }
.fig figcaption a, .shot figcaption a { color: var(--accent-text); border-bottom: 1px solid var(--accent); }

.dg { display: block; width: 100%; height: auto; min-width: 520px; }
.dg text {
  font-family: var(--font-sans);
  font-size: 14px;
  fill: var(--ink);
}
.dg .ly rect { fill: var(--bg-elevated); stroke: var(--border-strong); stroke-width: 1.2; }
.dg .ly--frame rect:first-child { fill: var(--accent-wash); stroke: var(--accent); stroke-width: 1.5; }
.dg .ly--base rect { fill: none; stroke: var(--ink); stroke-width: 1.5; stroke-dasharray: 5 4; }
.dg .ly-k { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.12em; fill: var(--accent-text); font-weight: 500; }
.dg .ly-t { font-size: 15px; fill: var(--text-soft); }
.dg .pill rect { fill: var(--bg-elevated); stroke: var(--accent-deep); stroke-width: 1.2; }
.dg .pill text { font-family: var(--font-mono); font-size: 11.5px; text-anchor: middle; fill: var(--accent-text); }
.dg .rail rect { fill: none; stroke: var(--accent); stroke-width: 1.5; stroke-dasharray: 3 5; }
.dg .rail text { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.14em; fill: var(--accent-text); }
.dg .tick path { stroke: var(--accent); stroke-width: 1.2; stroke-dasharray: 2 3; }

.dg .node rect { fill: var(--bg-elevated); stroke: var(--ink); stroke-width: 1.3; }
.dg .node text { text-anchor: middle; font-weight: 600; font-size: 14px; }
.dg .node--gate rect { fill: var(--accent-wash); stroke: var(--accent-deep); stroke-width: 2; }
.dg .node--gate text { fill: var(--accent-text); }
.dg .arr path { stroke: var(--ink); stroke-width: 1.5; fill: none; marker-end: url(#ah); }
.dg .arr path { stroke-linecap: round; }
.dg .trail { stroke: var(--accent); stroke-width: 2; stroke-dasharray: 6 5; fill: none; }
.dg .trail-dot circle { fill: var(--accent-deep); }
.dg .trail-t { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; fill: var(--accent-text); }

.dg .mem-k { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em; fill: var(--text-muted); }
.dg .ver rect { fill: var(--bg-elevated); stroke: var(--border-strong); stroke-width: 1.3; }
.dg .ver--new rect { stroke: var(--accent-deep); stroke-width: 2; fill: var(--accent-wash); }
.dg .ver-tag { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; fill: var(--accent-text); }
.dg .ver--old .ver-tag, .dg .ver--old .ver-val, .dg .ver--old .ver-src { fill: var(--text-muted); }
.dg .ver-val { font-family: var(--font-display); font-weight: 700; font-size: 20px; }
.dg .ver-src { font-family: var(--font-mono); font-size: 11px; fill: var(--text-muted); }
.dg .strike { stroke: var(--accent-deep); stroke-width: 2; }
.dg .dash { stroke: var(--accent); stroke-width: 1.5; stroke-dasharray: 4 4; }
.dg .infer rect { fill: none; stroke: var(--ink); stroke-width: 1.3; stroke-dasharray: 5 4; }
.dg .inf-t { font-size: 15px; fill: var(--text-soft); }

/* ---- Built for chips ---- */

.for-label {
  position: relative; z-index: 1;
  margin-top: 40px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.chips {
  position: relative; z-index: 1;
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-top: 12px;
}
.chips span {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--accent-text);
  padding: 6px 12px;
  border: 1.5px dashed var(--accent);
  border-radius: 6px;
  background: var(--bg-card);
}
.chips span:nth-child(odd) { transform: rotate(-1.5deg); }
.chips span:nth-child(even) { transform: rotate(1.2deg); }

/* ---- Pillars ---- */

.pillar {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.4fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  padding: 48px 0;
  border-top: 1px solid var(--border);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}
.pillar.revealed { opacity: 1; transform: translateY(0); }
.pillar--flip { grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.8fr); }
.pillar--flip .pillar-text { order: 2; }
.pillar-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--accent-deep);
  letter-spacing: 0.05em;
}
.pillar-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: -0.025em;
  color: var(--ink);
  margin: 4px 0 16px;
}
.pillar-list { list-style: none; display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.pillar-list li {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.55;
  color: var(--accent-text);
  padding-left: 18px;
  position: relative;
}
.pillar-list li::before { content: "✦"; position: absolute; left: 0; color: var(--accent); font-size: 0.7rem; top: 2px; }
.pillar-note { font-family: var(--font-sans); font-size: 0.98rem; line-height: 1.7; color: var(--text-soft); max-width: 42ch; }
.pillar-vis { display: flex; flex-direction: column; gap: 16px; min-width: 0; }

@media (max-width: 860px) {
  .pillar, .pillar--flip { grid-template-columns: 1fr; }
  .pillar--flip .pillar-text { order: 0; }
}

/* ---- Screenshots in a window frame ---- */

.shot {
  position: relative;
  z-index: 1;
  margin: 0;
  border: 1.5px solid var(--ink);
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow-card);
  min-width: 0;
}
.shot img { display: block; width: 100%; height: auto; }
.shot-bar {
  display: flex; align-items: center; gap: 6px;
  height: 30px; padding: 0 12px;
  border-bottom: 1.5px solid var(--ink);
  background: var(--bg-card);
}
.shot-bar i { width: 9px; height: 9px; border-radius: 50%; border: 1.3px solid var(--ink); }
.shot-bar span {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}
.shot--card { transform: rotate(-0.6deg); }
.shot--dark { margin-top: 48px; background: #070a11; }
.shot--dark figcaption { background: var(--bg-card); padding-top: 14px; margin-top: 0; border-top: 1.5px solid var(--ink); }

/* ---- You own ---- */

.own {
  border: 1.5px solid var(--ink);
  border-radius: 14px;
  background: var(--bg-card);
  padding: 28px 30px;
}
.own-k {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.own-list { list-style: none; display: flex; flex-direction: column; }
.own-list li {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  letter-spacing: -0.02em;
  color: var(--ink);
  padding: 8px 0;
  border-bottom: 1px dashed var(--border-strong);
  display: flex; align-items: center; gap: 12px;
}
.own-list li:last-child { border-bottom: none; }
.own-list li::before {
  content: "✓";
  font-size: 0.8em;
  color: var(--accent-deep);
}

/* ---- Ways in extras ---- */

.engage-link {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--accent-text);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
  word-break: break-all;
}
.engage-link:hover { color: var(--accent-deep); }

.quick { position: relative; z-index: 1; margin-top: 32px; }
.quick-k {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.quick-code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.8;
  color: #e9e6dc;
  background: var(--ink);
  border-radius: 12px;
  padding: 18px 22px;
  overflow-x: auto;
}
.quick-code .c { color: var(--accent); user-select: none; }

/* ---- Builder line ---- */

.builder {
  position: relative;
  z-index: 1;
  margin: 40px auto 0;
  max-width: 56ch;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text-muted);
}
.builder a { color: var(--accent-text); border-bottom: 1px solid var(--accent); }
.builder a:hover { color: var(--accent-deep); }

@media (prefers-reduced-motion: reduce) {
  .fail, .pillar { opacity: 1; transform: none; transition: none; }
}

/* layout refinements */
.pillar--stack { grid-template-columns: 1fr; gap: 28px; }
.pillar--stack .pillar-text { display: grid; grid-template-columns: auto 1fr; gap: 0 28px; align-items: start; }
.pillar--stack .pillar-num, .pillar--stack .pillar-name { grid-column: 1; }
.pillar--stack .pillar-list { grid-column: 2; grid-row: 1 / 3; margin: 6px 0 0; }
.pillar--stack .pillar-note { grid-column: 2; max-width: 60ch; }
@media (max-width: 720px) {
  .pillar--stack .pillar-text { display: block; }
}
.fig--stack { max-width: 860px; }
.shot--dark { max-width: 860px; }
.engage-item { align-content: start; }
.engage-link { display: table; }
@media (max-width: 860px) {
  .pillar, .pillar--flip, .pillar--stack { grid-template-columns: minmax(0, 1fr); }
}
.pillar-text, .pillar > figure, .own { min-width: 0; }
.quick, .quick-code { max-width: 100%; min-width: 0; }
@media (max-width: 720px) {
  .pillar-list li { word-break: break-word; }
  .quick-code { font-size: 0.72rem; padding: 14px 16px; }
}

/* ---- HTML diagrams (responsive) ---- */

.stack { display: grid; grid-template-columns: 1fr 64px; gap: 16px; }
.stack-layers { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.layer { background: var(--bg-elevated); border: 1px solid var(--border-strong); border-radius: 12px; padding: 14px 18px; }
.layer--frame { background: var(--accent-wash); border: 1.5px solid var(--accent); }
.layer--base { background: none; border: 1.5px dashed var(--ink); }
.layer-k, .ver-tag, .mem-k, .trail span, .rail span {
  font-family: var(--font-mono); font-size: 0.68rem; font-weight: 500;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent-text);
}
.layer-t { font-family: var(--font-sans); font-size: 0.95rem; color: var(--text-soft); margin-top: 4px; }
.pills { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.pills span {
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--accent-text);
  border: 1.2px solid var(--accent-deep); border-radius: 999px; padding: 4px 11px; background: var(--bg-elevated);
}
.rail { border: 1.5px dashed var(--accent); border-radius: 12px; display: flex; align-items: center; justify-content: center; }
.rail span { writing-mode: vertical-rl; transform: rotate(180deg); white-space: nowrap; }
@media (max-width: 720px) {
  .stack { grid-template-columns: 1fr; }
  .rail { padding: 12px; }
  .rail span { writing-mode: horizontal-tb; transform: none; white-space: normal; text-align: center; }
}

.flow { list-style: none; display: flex; align-items: center; gap: 22px; flex-wrap: nowrap; }
.flow li {
  position: relative; flex: 1; text-align: center;
  font-family: var(--font-display); font-weight: 600; font-size: 0.95rem; color: var(--ink);
  background: var(--bg-elevated); border: 1.3px solid var(--ink); border-radius: 10px; padding: 14px 8px;
}
.flow li + li::before {
  content: "→"; position: absolute; left: -19px; top: 50%; transform: translateY(-50%);
  font-family: var(--font-sans); font-weight: 400; color: var(--ink);
}
.flow .flow-gate { background: var(--accent-wash); border: 2px solid var(--accent-deep); color: var(--accent-text); padding: 20px 8px; }
.trail { margin-top: 18px; padding-top: 12px; border-top: 2px dashed var(--accent); }
@media (max-width: 720px) {
  .flow { flex-direction: column; align-items: stretch; gap: 22px; }
  .flow li + li::before { content: "↓"; left: 50%; top: -20px; transform: translateX(-50%); }
}

.mem-row { display: flex; align-items: center; gap: 14px; margin-top: 12px; }
.ver { flex: 1; background: var(--bg-elevated); border: 1.3px solid var(--border-strong); border-radius: 12px; padding: 14px 18px; min-width: 0; }
.ver--new { background: var(--accent-wash); border: 2px solid var(--accent-deep); }
.ver--old .ver-tag, .ver--old .ver-val, .ver--old .ver-src { color: var(--text-muted); }
.ver-val { font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; color: var(--ink); margin: 6px 0 4px; }
.ver-val s { text-decoration-color: var(--accent-deep); text-decoration-thickness: 2px; }
.ver-src { font-family: var(--font-mono); font-size: 0.68rem; color: var(--text-muted); }
.mem-arrow { font-size: 1.3rem; color: var(--ink); }
.infer { margin: 22px 0 0 auto; width: min(100%, 440px); border: 1.3px dashed var(--ink); border-radius: 12px; padding: 14px 18px; position: relative; }
.infer::before { content: ""; position: absolute; top: -23px; right: 25%; height: 22px; border-left: 1.5px dashed var(--accent); }
.infer-t { font-family: var(--font-sans); font-size: 0.95rem; color: var(--text-soft); margin-top: 6px; line-height: 1.55; }
@media (max-width: 720px) {
  .mem-row { flex-direction: column; align-items: stretch; }
  .mem-arrow { transform: rotate(90deg); align-self: center; }
  .infer::before { right: 50%; }
}

/* =====================================================
   v10: white theme refinements, scene, runs, live trace,
   grounding, memory cycle, connectors, ticker
   ===================================================== */

/* ---- Hero ticker ---- */
.ticker {
  margin-top: 26px;
  display: inline-flex; flex-wrap: wrap; align-items: center; gap: 6px 14px;
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-muted);
  padding: 8px 14px; border: 1px solid var(--border-strong); border-radius: 999px;
  background: rgba(255,255,255,0.85);
}
.ticker b { color: var(--ink); font-weight: 500; }
.tk-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(91,159,221,.6); animation: tk-pulse 1.8s infinite; }
.tk-wait { color: var(--accent-text); }
@keyframes tk-pulse { 0% { box-shadow: 0 0 0 0 rgba(91,159,221,.55); } 70% { box-shadow: 0 0 0 9px rgba(91,159,221,0); } 100% { box-shadow: 0 0 0 0 rgba(91,159,221,0); } }

/* ---- Scene setting ---- */
.scene { position: relative; z-index: 1; max-width: 68ch; margin-bottom: 44px; }
.scene p { font-family: var(--font-sans); font-size: 1.02rem; line-height: 1.75; color: var(--text-soft); margin-bottom: 16px; }
.scene .scene-lead { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.25rem, 2.2vw, 1.6rem); line-height: 1.4; letter-spacing: -0.015em; color: var(--ink); }

/* ---- Failure rows, problem + fix ---- */
.fail { grid-template-columns: 56px minmax(0, 1fr) minmax(0, 1fr); align-items: start; gap: 28px; padding: 28px 0; }
.fail-why { font-family: var(--font-sans); font-size: 0.92rem; color: var(--text-muted); line-height: 1.6; margin-top: 6px; }
.fail-fix { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; }
.fail-fix p { font-family: var(--font-sans); font-size: 0.92rem; color: var(--text-soft); line-height: 1.6; }
.fail-fix .stamp { white-space: normal; }
@media (max-width: 720px) {
  .fail { grid-template-columns: 36px minmax(0, 1fr); gap: 14px; }
  .fail .fail-fix { grid-column: 2; }
}

/* ---- What it runs ---- */
.runs { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--border-strong); border: 1.5px solid var(--ink); border-radius: 14px; overflow: hidden; margin-bottom: 48px; }
.run { background: var(--bg-elevated); padding: 24px 24px 26px; }
.run-k { font-family: var(--font-display); font-weight: 700; font-size: 1.08rem; letter-spacing: -0.015em; color: var(--ink); margin-bottom: 8px; }
.run p:not(.run-k) { font-family: var(--font-sans); font-size: 0.92rem; color: var(--text-soft); line-height: 1.6; }
@media (max-width: 900px) { .runs { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .runs { grid-template-columns: 1fr; } }

/* ---- Fluid agents layer ---- */
.layer--agents { background: linear-gradient(120deg, #fff, var(--bg-card)); }
.drift { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.drift span {
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--ink);
  padding: 5px 12px; border-radius: 999px; border: 1.3px dashed var(--ink); background: #fff;
  animation: drift 6s ease-in-out infinite;
}
.drift span:nth-child(2n) { animation-delay: -1.5s; animation-duration: 7s; }
.drift span:nth-child(3n) { animation-delay: -3s; animation-duration: 5.5s; }
.drift span:last-child { border-color: var(--accent-deep); color: var(--accent-text); }
@keyframes drift {
  0%, 100% { transform: translate(0, 0) rotate(-1deg); }
  33% { transform: translate(3px, -3px) rotate(1deg); }
  66% { transform: translate(-3px, 2px) rotate(-0.5deg); }
}

/* ---- Live Langfuse-style trace ---- */
.lf { min-width: 860px; font-family: 'Inter', sans-serif; font-size: 12.5px; color: #0f172a; background: #fff; }
.lf-head { padding: 12px 18px 12px; border-bottom: 1px solid #e5e7eb; }
.lf-crumb { color: #64748b; font-size: 12px; }
.lf-crumb b { font-family: var(--font-mono); color: #0f172a; font-weight: 500; }
.lf-title { margin-top: 8px; font-size: 16px; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.lf-title i, .lf-dt i, .lf-nm i { font-style: normal; font-size: 9.5px; font-weight: 600; padding: 1px 5px; border-radius: 4px; letter-spacing: .02em; background: #f1f5f9; color: #334155; }
.lf-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.lf-badges span { border: 1px solid #e5e7eb; border-radius: 6px; padding: 3px 8px; font-size: 11.5px; color: #334155; background: #f8fafc; }
.lf-badges b { font-weight: 600; color: #0f172a; font-variant-numeric: tabular-nums; }
.lf-body { display: grid; grid-template-columns: minmax(0, 1fr) 300px; }
.lf-tree { border-right: 1px solid #e5e7eb; }
.lf-th, .lf-row { display: grid; grid-template-columns: 250px 62px 140px minmax(0, 1fr); align-items: center; }
.lf-th { height: 28px; background: #fafafa; border-bottom: 1px solid #e5e7eb; color: #64748b; font-size: 10px; text-transform: uppercase; letter-spacing: .04em; }
.lf-th > span:first-child { padding-left: 12px; }
.lf-ticks { position: relative; height: 100%; margin-right: 12px; }
.lf-ticks i { position: absolute; left: calc(var(--t) * 100%); top: 8px; font-style: normal; transform: translateX(-50%); }
.lf-ticks i:first-child { transform: none; }
.lf-row { height: 21px; border-bottom: 1px solid #f1f5f9; transition: opacity .25s ease, background .3s ease; }
.lf-nm { display: flex; align-items: center; gap: 7px; padding-left: calc(12px + var(--l) * 16px); white-space: nowrap; overflow: hidden; }
.lf-nm b { font-family: var(--font-mono); font-size: 11px; font-weight: 400; }
.lf-agent .lf-nm i { background: #ede9fe; color: #6d28d9; }
.lf-generation .lf-nm i { background: #dcfce7; color: #15803d; }
.lf-tool .lf-nm i { background: #ffedd5; color: #c2410c; }
.lf-d, .lf-m { font-size: 11px; color: #64748b; font-variant-numeric: tabular-nums; white-space: nowrap; }
.lf-tl { position: relative; height: 100%; margin-right: 12px; }
.lf-bar { position: absolute; top: 6px; height: 8px; border-radius: 3px; left: calc(var(--s) * 100%); width: calc(var(--w) * 100%); min-width: 2px; opacity: .8; transform-origin: left center; }
.lf-agent .lf-bar { background: #7c3aed; }
.lf-generation .lf-bar { background: #16a34a; }
.lf-tool .lf-bar { background: #ea580c; }
.lf-sel { background: #eff6ff; box-shadow: inset 3px 0 0 #2563eb; }
.lf-detail { padding: 14px 16px; display: flex; flex-direction: column; gap: 10px; }
.lf-dt { font-family: var(--font-mono); font-size: 13px; font-weight: 500; display: flex; align-items: center; gap: 8px; }
.lf-dt i { background: #ffedd5; color: #c2410c; }
.lf-detail dl { display: grid; grid-template-columns: 82px 1fr; gap: 5px 8px; font-size: 11.5px; }
.lf-detail dt { color: #64748b; }
.lf-detail dd { display: flex; align-items: center; gap: 6px; }
.lf-pulse { width: 7px; height: 7px; border-radius: 50%; background: #2563eb; animation: tk-pulse 1.6s infinite; }
.lf-lbl { font-size: 10px; text-transform: uppercase; letter-spacing: .05em; color: #64748b; font-weight: 600; }
.lf-detail pre { font-family: var(--font-mono); font-size: 10.5px; line-height: 1.55; background: #f8fafc; border: 1px solid #e5e7eb; border-radius: 8px; padding: 10px; white-space: pre-wrap; color: #0f172a; }
.lf-scores { display: flex; flex-wrap: wrap; gap: 6px; }
.lf-scores span { font-size: 11px; border: 1px solid #bbf7d0; background: #f0fdf4; color: #166534; border-radius: 6px; padding: 2px 7px; }
/* animation states */
.lf.is-playing .lf-row { opacity: .12; }
.lf.is-playing .lf-row.on { opacity: 1; }
.lf.is-playing .lf-row .lf-bar { transform: scaleX(0); }
.lf.is-playing .lf-row.on .lf-bar { transform: scaleX(1); transition: transform var(--dur, .4s) linear; }
.lf.is-playing .lf-detail { opacity: .25; transition: opacity .4s ease; }
.lf.is-playing.at-gate .lf-detail { opacity: 1; }

/* ---- Video screenshot ---- */
.shot--video { margin-top: 20px; max-width: none; }
.shot--video video { display: block; width: 100%; height: auto; background: #070a11; }

/* ---- Grounding ---- */
.ground { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 16px; }
.ground > div { background: var(--bg-elevated); border: 1px solid var(--border-strong); border-radius: 14px; padding: 20px 22px; }
.g-k { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent-text); margin-bottom: 12px; }
.g-text { font-family: var(--font-display); font-weight: 500; font-size: 1.15rem; line-height: 1.7; color: var(--ink); }
.g-text mark { background: var(--accent-wash); color: var(--ink); border-bottom: 2px solid var(--accent); padding: 0 2px; border-radius: 2px; }
.g-text mark::after, .g-text del::after { content: attr(data-e); font-family: var(--font-mono); font-size: 0.62rem; vertical-align: super; margin-left: 3px; color: var(--accent-text); }
.g-text mark.g-voice { background: rgba(22,24,29,.05); border-bottom: 2px dashed var(--ink); }
.g-text del { color: var(--text-dim); text-decoration: line-through 2px var(--ink); }
.g-legend { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 14px; font-family: var(--font-mono); font-size: 0.68rem; color: var(--text-muted); }
.lg::before { content: ""; display: inline-block; width: 18px; height: 3px; margin-right: 6px; vertical-align: middle; }
.lg-fact::before { background: var(--accent); }
.lg-voice::before { border-top: 2px dashed var(--ink); height: 0; }
.lg-cut::before { background: var(--ink); height: 2px; }
.ledger { width: 100%; border-collapse: collapse; font-size: 0.86rem; }
.ledger td { padding: 8px 6px; border-bottom: 1px dashed var(--border-strong); color: var(--ink); vertical-align: top; }
.ledger tr:last-child td { border-bottom: none; }
.ledger .e { font-family: var(--font-mono); font-size: 0.74rem; color: var(--accent-text); width: 30px; }
.ledger .src { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-muted); }
.ledger .ok { color: var(--accent-deep); font-weight: 700; }
.ledger .no { color: var(--ink); font-weight: 700; }
.ledger .cut td:nth-child(2) { text-decoration: line-through; color: var(--text-dim); }
.rubric { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.rubric li { display: grid; grid-template-columns: 110px 1fr; align-items: center; gap: 12px; font-family: var(--font-sans); font-size: 0.88rem; color: var(--text-soft); }
.rubric b { position: relative; display: block; height: 22px; border-radius: 6px; background: var(--bg-card); border: 1px solid var(--border); font-family: var(--font-mono); font-size: 0.7rem; font-weight: 500; color: var(--ink); line-height: 20px; padding-left: 8px; overflow: hidden; z-index: 0; }
.rubric b::before { content: ""; position: absolute; inset: 0 auto 0 0; width: calc(var(--v) * 100%); background: var(--accent-wash); border-right: 2px solid var(--accent); z-index: -1; }
.g-note { margin-top: 12px; font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-muted); }
.ground .ground-card { border-radius: 12px; padding: 0; align-self: start; }
@media (max-width: 860px) { .ground { grid-template-columns: 1fr; } }

/* ---- Memory cycle ---- */
.memgrid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 16px; align-items: start; }
.cycle { position: relative; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; padding-top: 18px; }
.cycle::before { content: ""; position: absolute; top: 4px; left: 8px; right: 8px; border-top: 2px dashed var(--accent); }
.cycle-dot { position: absolute; top: -2px; left: 8px; width: 14px; height: 14px; border-radius: 50%; background: var(--accent-deep); box-shadow: 0 0 0 4px var(--accent-wash); animation: cycle-move 9s linear infinite; }
@keyframes cycle-move { 0% { left: 8px; } 100% { left: calc(100% - 22px); } }
.phase { border: 1px solid var(--border-strong); border-radius: 12px; padding: 16px 16px 18px; background: var(--bg-elevated); }
.phase--night { background: #16181d; border-color: #16181d; }
.phase--night .ph-h, .phase--night li { color: #e8ebf1; }
.phase--night .ph-t { color: var(--accent); }
.phase--week { border-style: dashed; border-color: var(--ink); }
.ph-t { font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent-text); }
.ph-h { font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; color: var(--ink); margin: 6px 0 10px; }
.phase ul { list-style: none; display: flex; flex-direction: column; gap: 7px; }
.phase li { font-family: var(--font-sans); font-size: 0.84rem; line-height: 1.5; color: var(--text-soft); padding-left: 14px; position: relative; }
.phase li::before { content: "·"; position: absolute; left: 2px; color: var(--accent); font-weight: 700; }
@media (max-width: 960px) { .memgrid { grid-template-columns: 1fr; } }
@media (max-width: 640px) {
  .cycle { grid-template-columns: 1fr; padding-top: 0; padding-left: 22px; }
  .cycle::before { top: 8px; bottom: 8px; left: 6px; right: auto; border-top: none; border-left: 2px dashed var(--accent); }
  .cycle-dot { left: 0 !important; top: 8px; animation: cycle-move-v 9s linear infinite; }
  @keyframes cycle-move-v { 0% { top: 8px; } 100% { top: calc(100% - 22px); } }
}

/* ---- Connectors + own ---- */
.yours { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 16px; align-items: start; }
.conn { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--border-strong); border: 1.5px solid var(--ink); border-radius: 14px; overflow: hidden; }
.conn-g { background: var(--bg-elevated); padding: 14px 16px 16px; }
.conn-g--any { background: var(--accent-wash); }
.conn-k { font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 8px; }
.conn-l { display: flex; flex-wrap: wrap; gap: 6px; }
.conn-l span { font-family: var(--font-sans); font-size: 0.8rem; font-weight: 500; color: var(--ink); border: 1px solid var(--border-strong); border-radius: 6px; padding: 3px 9px; background: #fff; }
.conn-g--any .conn-l span { border-style: dashed; border-color: var(--accent-deep); color: var(--accent-text); }
/* Status tags: every connector says whether it is live today or in development */
.conn-legend { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 14px; background: var(--bg-soft); padding: 10px 16px; }
.conn-legend span { font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); display: inline-flex; align-items: center; gap: 6px; }
.conn-legend span::before { content: ""; width: 7px; height: 7px; border-radius: 50%; }
.conn-legend .is-live::before { background: #1f8a55; }
.conn-legend .is-dev::before { box-sizing: border-box; border: 1.5px dashed var(--text-dim); }
.conn-l .is-live::after, .conn-l .is-dev::after { font-family: var(--font-mono); font-size: 0.56rem; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; margin-left: 6px; padding: 1px 4px; border-radius: 3px; vertical-align: 1px; }
.conn-l .is-live::after { content: "live"; color: #1a6b43; background: #e6f4ec; }
.conn-l .is-dev { color: var(--text-muted); border-style: dashed; background: var(--bg-soft); }
.conn-l .is-dev::after { content: "in development"; color: var(--text-muted); background: rgba(22, 24, 29, 0.06); }
@media (max-width: 860px) { .yours { grid-template-columns: 1fr; } }
@media (max-width: 520px) { .conn { grid-template-columns: 1fr; } }

/* ---- Ways in highlight ---- */
.engage-item--hi { background: var(--accent-wash); }

@media (prefers-reduced-motion: reduce) {
  .drift span, .cycle-dot, .tk-dot, .lf-pulse { animation: none; }
}
.phase.phase--night .ph-h, .phase.phase--night li { color: #e8ebf1; }
.conn-g.conn-g--any { background: #eef5fc; }
.shot--video { max-width: 920px; }

/* ---- Flip cards: use cases behind each area ---- */
.run { padding: 0; background: transparent; perspective: 1200px; cursor: pointer; outline: none; }
.runs { background: var(--border-strong); }
.run-in { display: grid; height: 100%; transform-style: preserve-3d; transition: transform .6s cubic-bezier(.2,.7,.2,1); }
.run-face { grid-area: 1 / 1; backface-visibility: hidden; -webkit-backface-visibility: hidden; padding: 24px 24px 26px; background: var(--bg-elevated); display: flex; flex-direction: column; }
.run-back { transform: rotateY(180deg); background: #16181d; }
.run-back .run-k { color: #fff; }
.run-d { font-family: var(--font-sans); font-size: 0.92rem; color: var(--text-soft); line-height: 1.6; flex: 1; }
.run-more { margin-top: 14px; font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: .04em; color: var(--accent-text); }
.run-uc { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.run-uc li { font-family: var(--font-sans); font-size: 0.86rem; line-height: 1.5; color: #dfe4ec; padding-left: 16px; position: relative; }
.run-uc li::before { content: "✦"; position: absolute; left: 0; top: 1px; font-size: .62rem; color: var(--accent); }
.run.is-flipped .run-in { transform: rotateY(180deg); }
.run:focus-visible .run-front { box-shadow: inset 0 0 0 2px var(--accent); }
@media (hover: hover) {
  .run:hover .run-in { transform: rotateY(180deg); }
}
@media (prefers-reduced-motion: reduce) { .run-in { transition: none; } }

/* ---- Loom nudge ---- */
.nudge { position: relative; z-index: 1; margin-top: 28px; padding: 22px 26px; border: 1.5px dashed var(--accent); border-radius: 14px; background: var(--bg-card); max-width: 70ch; }
.nudge p { font-family: var(--font-display); font-weight: 600; font-size: 1.1rem; line-height: 1.5; color: var(--ink); }
.engage-item.engage-item--hi { background: #eef5fc; }

/* ---- One platform across the stack ---- */
.cap-wrap { position: relative; z-index: 1; overflow-x: auto; border: 1.5px solid var(--ink); border-radius: 14px; background: var(--bg-elevated); }
.cap { width: 100%; min-width: 640px; border-collapse: collapse; font-size: 0.92rem; }
.cap th { text-align: left; font-family: var(--font-mono); font-size: 0.66rem; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-muted); padding: 14px 18px; border-bottom: 1px solid var(--border-strong); background: var(--bg-soft); }
.cap td { padding: 14px 18px; border-bottom: 1px solid var(--border); color: var(--text-soft); line-height: 1.55; vertical-align: top; }
.cap tr:last-child td { border-bottom: 0; }
.cap td:first-child { font-family: var(--font-display); font-weight: 650; color: var(--ink); white-space: nowrap; }
.cap td:last-child { font-family: var(--font-mono); font-size: 0.76rem; color: var(--accent-text); }
.cap-note { position: relative; z-index: 1; margin-top: 14px; font-size: 0.86rem; color: var(--text-muted); }
.cap-note a { color: var(--accent-text); text-decoration: underline; text-underline-offset: 3px; }