/* ═══════════════════════════════════════════════════════════════
   ACTLAS - landing
   Two themes, one palette. Dark is the default surface (deep ink
   navy); light mirrors it on paper. Everything downstream is
   derived from these tokens - no raw colors past this block, so a
   theme swap is a variable swap. The graph layer colors (--l-*)
   and the canvas tokens (--c-*) are read by app.js at runtime.
   ═══════════════════════════════════════════════════════════════ */

:root {
  color-scheme: dark;
  --surface:      #080D1A;
  --panel:        #0D1426;
  --panel-2:      #111A30;
  --line:         rgba(148, 168, 210, 0.13);
  --line-strong:  rgba(148, 168, 210, 0.24);
  --ink:          #E9EEFA;
  --ink-2:        #9AA7C4;
  --ink-3:        #64718F;
  --accent:       #5C8DF0;
  --accent-soft:  color-mix(in srgb, var(--accent) 14%, transparent);
  --teal:         #1DA592;
  --amber:        #C1811C;
  --violet:       #8F72E8;
  --rose:         #E25E80;
  --grad-mid:     #8FB2F7;   /* midpoint of the display-italic gradient */
  --on-accent:    #071022;   /* text that sits on an accent fill */
  --shadow:       rgba(0, 0, 0, 0.55);
  --grain:        0.032;

  /* graph layers - semantic, read by the canvas */
  --l-article: #5C8DF0;
  --l-recital: #8F72E8;
  --l-oblig:   #1DA592;
  --l-annex:   #C1811C;
  --l-prohib:  #E25E80;

  /* canvas ink, as rgb triplets so app.js can vary the alpha */
  --c-edge:       140, 163, 214;
  --c-edge-a:     0.095;
  --c-node-a:     1;
  --c-pulse:      146, 180, 247;
  --c-label-bg:   10, 16, 30;
  --c-label-bg-a: 0.82;
  --c-label-ink:  233, 238, 250;

  --radius:       14px;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
}

:root[data-theme="light"] {
  color-scheme: light;
  --surface:      #F6F8FC;
  --panel:        #FFFFFF;
  --panel-2:      #EEF3FB;
  --line:         rgba(24, 44, 84, 0.13);
  --line-strong:  rgba(24, 44, 84, 0.24);
  --ink:          #0E1A2E;
  --ink-2:        #46567A;
  --ink-3:        #63728F;
  --accent:       #2A5FD4;
  --teal:         #0B7A69;
  --amber:        #8F5D0A;
  --violet:       #5B44C4;
  --rose:         #C0304F;
  --grad-mid:     #4C7BE0;
  --on-accent:    #FFFFFF;
  --shadow:       rgba(21, 40, 80, 0.16);
  --grain:        0.02;

  --l-article: #2A5FD4;
  --l-recital: #6B4FD0;
  --l-oblig:   #0B7A69;
  --l-annex:   #A0680E;
  --l-prohib:  #C0304F;

  --c-edge:       74, 101, 158;
  --c-edge-a:     0.22;
  --c-node-a:     1.25;   /* pigment on paper needs more weight than light on ink */
  --c-pulse:      42, 95, 212;
  --c-label-bg:   255, 255, 255;
  --c-label-bg-a: 0.92;
  --c-label-ink:  14, 26, 46;
}

/* theme swap: cross-fade the big surfaces instead of snapping */
body, .nav, .card, .reg-panel, .cta-inner, .ticker, .foot {
  transition: background-color 0.35s ease, border-color 0.35s ease, color 0.35s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--surface);
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: color-mix(in srgb, var(--accent) 35%, transparent); }

/* film grain - premium texture, invisible until you look for it */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  opacity: var(--grain);
  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'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ── Nav ─────────────────────────────────────────────────────── */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(20px, 4vw, 48px);
  height: 64px;
  background: color-mix(in srgb, var(--surface) 72%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--ink);
  text-decoration: none;
}

.mark { width: 23px; height: 23px; }
.m-ring { fill: none; stroke: var(--line-strong); stroke-width: 1.3; stroke-dasharray: 47 13; stroke-dashoffset: 8; }
.m-edge { stroke: var(--ink-3); stroke-width: 1.3; fill: none; }
.m-apex { fill: var(--accent); }
.m-l { fill: var(--teal); }
.m-r { fill: var(--violet); }

.nav nav { display: flex; align-items: center; gap: clamp(14px, 2.5vw, 30px); }

.nav nav a {
  color: var(--ink-2);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color 0.2s;
}
.nav nav a:hover { color: var(--ink); }

.nav-cta {
  color: var(--ink) !important;
  border: 1px solid var(--line-strong);
  padding: 7px 16px;
  border-radius: 99px;
  transition: border-color 0.2s, background 0.2s;
}
.nav-cta:hover { border-color: var(--accent); background: var(--accent-soft); }

/* theme toggle */
.theme-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  flex: none;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: none;
  color: var(--ink-2);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.theme-btn:hover { color: var(--ink); border-color: var(--accent); background: var(--accent-soft); }
.theme-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* GitHub link - same affordance as the theme toggle so the nav stays balanced */
.gh-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  flex: none;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ink-2);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.gh-btn svg { width: 17px; height: 17px; fill: currentColor; }
.gh-btn:hover { color: var(--ink); border-color: var(--accent); background: var(--accent-soft); }
.gh-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.foot a { color: var(--ink-2); text-decoration: none; border-bottom: 1px solid var(--line-strong); }
.foot a:hover { color: var(--ink); border-bottom-color: var(--accent); }

.th-icon {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.th-moon { display: none; }
/* dark surface → offer the sun; light surface → offer the moon */
[data-theme="light"] .th-sun { display: none; }
[data-theme="light"] .th-moon { display: block; }

/* ── Hero ────────────────────────────────────────────────────── */

.hero { position: relative; }

.hero-sticky {
  position: relative;
  min-height: min(100svh, 1000px);
  display: flex;
  align-items: center;
  overflow: hidden;
}

/* intro mode: hero stretches, stage pins, scroll drives the handoff */
.intro-on .hero { height: 210vh; }
.intro-on .hero-sticky {
  position: sticky;
  top: 0;
  height: 100svh;
  min-height: 0;
}
.intro-on .hero-inner { opacity: 0; }
.intro-on .hero-legend { opacity: 0; }

.hero-intro {
  display: none;
  position: absolute;
  inset: 0;
  z-index: 3;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  pointer-events: none;
  will-change: opacity, transform;
}
.intro-on .hero-intro { display: flex; }

.intro-mark { width: clamp(72px, 9vw, 104px); height: auto; margin-bottom: 26px; }
.im-ring { fill: none; stroke: color-mix(in srgb, var(--ink-3) 65%, transparent); stroke-width: 1.6; stroke-dasharray: 94 26; stroke-dashoffset: 16; stroke-linecap: round; }
.im-edge { stroke: var(--ink-3); stroke-width: 1.6; fill: none; stroke-linecap: round; }
.im-apex { fill: var(--accent); }
.im-l { fill: var(--teal); }
.im-r { fill: var(--violet); }

.intro-word {
  font-family: var(--mono);
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 700;
  letter-spacing: 0.34em;
  margin-right: -0.34em; /* optical centering against tracking */
  color: var(--ink);
}

.intro-line {
  margin-top: 14px;
  font-size: clamp(14px, 1.5vw, 17px);
  color: var(--ink-2);
}
.intro-line em {
  font-family: Georgia, "Times New Roman", serif;
  font-style: italic;
  background: linear-gradient(92deg, var(--accent), var(--grad-mid) 55%, var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.intro-cue {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.intro-cue i {
  display: block;
  width: 1px;
  height: 44px;
  background: linear-gradient(to bottom, transparent, var(--ink-2));
  overflow: hidden;
  position: relative;
}
.intro-cue i::after {
  content: "";
  position: absolute;
  left: 0;
  top: -50%;
  width: 1px;
  height: 50%;
  background: var(--accent);
  animation: cue-drop 1.8s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}
@keyframes cue-drop { to { top: 110%; } }

#graph {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.hero-vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 90% 70% at 24% 45%, color-mix(in srgb, var(--surface) 94%, transparent) 0%, color-mix(in srgb, var(--surface) 55%, transparent) 45%, transparent 72%),
    linear-gradient(to bottom, color-mix(in srgb, var(--surface) 60%, transparent), transparent 22%, transparent 72%, var(--surface) 100%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 730px;
  min-width: 0; /* flex item: allow it to shrink to narrow viewports */
  padding: 100px clamp(20px, 4vw, 48px) 60px;
  will-change: opacity, transform;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  max-width: 100%;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-2);
  padding-left: 14px;
  border-left: 2px solid var(--accent);
  margin-bottom: 28px;
}

.pulse-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--teal) 55%, transparent);
  animation: ping 2.4s cubic-bezier(0, 0, 0.2, 1) infinite;
}
@keyframes ping {
  0%   { box-shadow: 0 0 0 0 color-mix(in srgb, var(--teal) 55%, transparent); }
  70%  { box-shadow: 0 0 0 9px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

h1 {
  font-size: clamp(36px, 4.9vw, 56px);
  line-height: 1.06;
  font-weight: 700;
  letter-spacing: -0.028em;
  margin-bottom: 22px;
}
h1 em, .bento-head h2 em, .deploy-head h2 em, .cta h2 em {
  font-family: Georgia, "Times New Roman", serif;
  font-style: italic;
  font-weight: 500;
  letter-spacing: -0.01em;
  background: linear-gradient(92deg, var(--accent), var(--grad-mid) 55%, var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.lede {
  font-size: clamp(15.5px, 1.6vw, 17.5px);
  color: var(--ink-2);
  max-width: 54ch;
  margin-bottom: 32px;
}
.lede strong { color: var(--ink); font-weight: 600; }

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 42px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  padding: 13px 26px;
  border-radius: 999px;
  transition: transform 0.18s, box-shadow 0.18s, background 0.18s, border-color 0.18s;
}

.btn-primary {
  background: var(--accent);
  color: var(--on-accent);
  box-shadow: 0 8px 28px -8px color-mix(in srgb, var(--accent) 55%, transparent);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px -8px color-mix(in srgb, var(--accent) 70%, transparent);
}

.btn-arrow { transition: transform 0.18s; }
.btn:hover .btn-arrow { transform: translateX(3px); }

.btn-ghost {
  color: var(--ink);
  border: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--panel) 55%, transparent);
}
.btn-ghost:hover { border-color: var(--accent); background: var(--accent-soft); }

.btn-lg { padding: 16px 34px; font-size: 16px; }

/* regulation panel: tabs on top, live node readout below - one unit, so it
   never re-flows into "one beside, one under" as the viewport changes */
.reg-panel {
  width: min(100%, 500px);
  margin-bottom: 6px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: color-mix(in srgb, var(--panel) 74%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  overflow: hidden;
  transition: border-color 0.25s;
}
.reg-panel:hover { border-color: var(--line-strong); }

.reg-toggle {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: 6px;
  border-bottom: 1px solid var(--line);
}

.reg-chip {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-2);
  background: none;
  border: none;
  padding: 8px 10px;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.2s, background 0.2s;
}
.reg-chip:hover { color: var(--ink); background: color-mix(in srgb, var(--panel-2) 75%, transparent); }
.reg-chip.on, .reg-chip.on:hover {
  color: var(--on-accent);
  background: var(--accent);
  font-weight: 700;
}

/* live node readout */
.node-inspector {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  min-height: 44px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-2);
}
.ni-dot {
  flex: none;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  transition: background 0.4s;
}
.ni-path {
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: opacity 0.35s;
}
.ni-path.fade { opacity: 0; }
.ni-live {
  flex: none;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.hero-legend {
  position: absolute;
  right: clamp(20px, 4vw, 48px);
  bottom: 26px;
  z-index: 2;
  display: flex;
  gap: 18px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}
.hero-legend span { display: inline-flex; align-items: center; gap: 7px; }
.hero-legend i {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--c);
  display: inline-block;
}

/* ── Proof strip ─────────────────────────────────────────────── */

.ticker {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 45%, transparent);
}

.stat {
  padding: 30px 18px;
  text-align: center;
  border-right: 1px solid var(--line);
}
.stat:last-child { border-right: none; }

.stat-n {
  display: block;
  font-family: var(--mono);
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.stat-l {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.stat-zero .stat-n { color: var(--teal); }

/* ── Bento ───────────────────────────────────────────────────── */

.bento {
  max-width: 1140px;
  margin: 0 auto;
  padding: clamp(70px, 9vw, 110px) clamp(20px, 4vw, 48px) 30px;
}

.bento-head { max-width: 640px; margin-bottom: 48px; }

.bento-head h2, .deploy-head h2, .cta h2 {
  font-size: clamp(28px, 3.6vw, 42px);
  line-height: 1.12;
  font-weight: 700;
  letter-spacing: -0.024em;
  margin-bottom: 16px;
}

.bento-head p { color: var(--ink-2); font-size: 16.5px; }

/* link out to the long-form write-up of the method this section describes */
.read-link {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  margin-top: 22px;
  padding: 12px 18px 12px 15px;
  max-width: 640px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--accent);
  border-radius: 10px;
  background: color-mix(in srgb, var(--panel) 70%, transparent);
  text-decoration: none;
  transition: border-color 0.22s, background 0.22s, transform 0.22s;
}
.read-link:hover {
  border-color: var(--line-strong);
  border-left-color: var(--accent);
  background: var(--panel-2);
  transform: translateX(2px);
}
.read-link:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.read-link svg {
  flex: none; width: 19px; height: 19px;
  fill: none; stroke: var(--accent); stroke-width: 1.7;
  stroke-linecap: round; stroke-linejoin: round;
}
.read-link span { font-size: 13.5px; color: var(--ink-2); line-height: 1.45; }
.read-link span b { display: block; font-weight: 650; color: var(--ink); }
.read-link em {
  flex: none; margin-left: auto; font-style: normal;
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.04em;
  color: var(--accent); white-space: nowrap;
}
@media (max-width: 620px) {
  .read-link { flex-wrap: wrap; }
  .read-link em { margin-left: 32px; }
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 18px;
}

.card {
  position: relative;
  background: linear-gradient(160deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 26px 24px;
  overflow: hidden;
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}
/* cursor spotlight - lit from where the pointer is */
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(320px circle at var(--mx, 50%) var(--my, 0%),
              color-mix(in srgb, var(--accent) 9%, transparent), transparent 65%);
  opacity: 0;
  transition: opacity 0.35s;
}
.card:hover::after { opacity: 1; }
.card:hover {
  border-color: var(--line-strong);
  transform: translateY(-3px);
  box-shadow: 0 20px 44px -18px var(--shadow);
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--accent) 50%, transparent), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}
.card:hover::before { opacity: 1; }

.card-chat  { grid-column: 1 / 8;  grid-row: 1 / 3; display: flex; flex-direction: column; }
.card:nth-child(2) { grid-column: 8 / 13; grid-row: 1; }
.card-guard { grid-column: 8 / 13; grid-row: 2; }
.card:nth-child(4) { grid-column: 1 / 7;  grid-row: 3; }
.card:nth-child(5) { grid-column: 7 / 13; grid-row: 3; }

.card-idx {
  position: absolute;
  top: 20px;
  right: 22px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--ink-3);
  transition: color 0.25s;
}
.card:hover .card-idx { color: var(--accent); }

.card h3 {
  font-size: 19.5px;
  font-weight: 650;
  letter-spacing: -0.015em;
  line-height: 1.25;
  margin: 4px 34px 10px 0;
}
.card h3 s { color: var(--ink-3); }

.card p { color: var(--ink-2); font-size: 14.5px; }

/* chat card */
.chat {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 4px;
}

.msg { border-radius: 12px; padding: 14px 18px; font-size: 14.5px; }

.msg-user {
  align-self: flex-end;
  max-width: 85%;
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  color: var(--ink);
  border-bottom-right-radius: 4px;
}

.msg-agent {
  align-self: stretch;
  flex: 1;
  display: flex;
  flex-direction: column;
  background: color-mix(in srgb, var(--surface) 55%, transparent);
  border: 1px solid var(--line);
  border-bottom-left-radius: 4px;
}
.msg-agent .cites { margin-top: auto; padding-top: 14px; }

.agent-route { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }

.route-step {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  border: 1px solid var(--line);
  padding: 3px 9px;
  border-radius: 99px;
  transition: color 0.3s, border-color 0.3s;
}
.route-step.done { color: var(--teal); border-color: color-mix(in srgb, var(--teal) 40%, transparent); }

#typewriter {
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink);
  white-space: pre-wrap;
  min-height: 150px;
}
#typewriter .hl-risk { color: var(--rose); font-weight: 700; }
#typewriter .hl-ok   { color: var(--teal); }
#typewriter::after {
  content: "▌";
  color: var(--accent);
  animation: blink 0.9s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.cites { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }

.cite {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink-2);
  background: color-mix(in srgb, var(--panel-2) 80%, transparent);
  border: 1px solid var(--line-strong);
  padding: 4px 10px;
  border-radius: 6px;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.4s, transform 0.4s, border-color 0.2s;
}
.cite.show { opacity: 1; transform: none; }
.cite:hover { border-color: var(--accent); }
.cite b { color: var(--accent); font-weight: 600; }

.card-foot {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}

/* duty mini-graph */
.duty-svg { width: 100%; margin-top: 18px; }
.d-edge  { stroke: var(--line-strong); stroke-width: 1.3; }
.d-edge-gap { stroke: color-mix(in srgb, var(--rose) 55%, transparent); stroke-dasharray: 4 4; }
.d-actor { fill: var(--accent); }
.d-ob    { fill: var(--teal); }
.d-ob-gap {
  fill: none;
  stroke: var(--rose);
  stroke-width: 1.6;
  stroke-dasharray: 3.5 3;
  animation: gap-spin 9s linear infinite;
}
@keyframes gap-spin { to { stroke-dashoffset: -65; } }
.d-ev { fill: none; stroke: var(--ink-3); stroke-width: 1.3; }
.d-lab { font-family: var(--mono); font-size: 9.5px; fill: var(--ink-3); }
.d-lab-gap { fill: var(--rose); }

/* guardrail card */
.card-guard {
  background: linear-gradient(160deg, color-mix(in srgb, var(--violet) 12%, var(--panel-2)), var(--panel));
  border-color: color-mix(in srgb, var(--violet) 22%, transparent);
}
.card-guard .card-idx { color: var(--violet); }

/* anchors card */
.anchors { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }

.anchors code {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-2);
  background: color-mix(in srgb, var(--surface) 60%, transparent);
  border: 1px solid var(--line-strong);
  padding: 7px 13px;
  border-radius: 8px;
  transition: border-color 0.2s, color 0.2s, transform 0.2s;
  cursor: default;
}
.anchors code:hover { border-color: var(--accent); color: var(--ink); transform: translateY(-2px); }
.anchors code b { color: var(--accent); font-weight: 600; }

/* sector tags */
.tags { display: flex; gap: 9px; flex-wrap: wrap; margin-top: 18px; }

.tag {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-2);
  border: 1px solid var(--line-strong);
  padding: 6px 13px;
  border-radius: 99px;
  transition: all 0.2s;
  cursor: default;
}
.tag:hover { border-color: var(--accent); color: var(--ink); }
.tag-on {
  color: var(--on-accent);
  background: var(--accent);
  border-color: var(--accent);
  font-weight: 600;
}

/* ── CTA ─────────────────────────────────────────────────────── */

.cta { padding: clamp(70px, 9vw, 120px) clamp(20px, 4vw, 48px); }

@property --ang {
  syntax: "<angle>";
  initial-value: 0deg;
  inherits: false;
}

.cta-inner {
  position: relative;
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  padding: clamp(40px, 6vw, 64px) clamp(24px, 5vw, 60px);
  border: 1px solid var(--line);
  border-radius: 20px;
  background:
    radial-gradient(ellipse 80% 120% at 50% -20%, color-mix(in srgb, var(--accent) 13%, transparent), transparent 60%),
    linear-gradient(160deg, var(--panel-2), var(--panel));
}

/* slow beam of light circling the frame */
.cta-inner::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 21px;
  padding: 1px;
  background: conic-gradient(from var(--ang),
    transparent 0deg, color-mix(in srgb, var(--accent) 70%, transparent) 40deg,
    color-mix(in srgb, var(--violet) 40%, transparent) 70deg, transparent 110deg);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  animation: orbit 7s linear infinite;
  pointer-events: none;
}
@keyframes orbit { to { --ang: 360deg; } }

.cta p { color: var(--ink-2); font-size: 16px; max-width: 46ch; margin: 0 auto 30px; }

.cta-fine {
  margin-top: 22px !important;
  font-family: var(--mono);
  font-size: 12px !important;
  letter-spacing: 0.06em;
  color: var(--ink-3) !important;
}

/* ── Footer ──────────────────────────────────────────────────── */

.foot {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 26px clamp(20px, 4vw, 48px);
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}

/* ── Reveal on scroll ────────────────────────────────────────── */

.js .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1), transform 0.65s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.25s, box-shadow 0.25s;
}
.js .reveal.in { opacity: 1; transform: none; }
.js .reveal.in:hover { transform: translateY(-3px); }

/* ── Responsive ──────────────────────────────────────────────── */

@media (max-width: 960px) {
  .grid { grid-template-columns: 1fr; }
  .card-chat, .card:nth-child(2), .card-guard,
  .card:nth-child(4), .card:nth-child(5) { grid-column: 1 / -1; grid-row: auto; }
  .hero-legend { display: none; }
}

@media (max-width: 720px) {
  .ticker { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2n) { border-right: none; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

@media (max-width: 560px) {
  .nav nav a:not(.nav-cta) { display: none; }
  #typewriter { min-height: 190px; }
  .reg-chip { font-size: 11px; padding: 8px 6px; letter-spacing: 0.02em; }
  .node-inspector { padding: 11px 12px; font-size: 11.5px; }
  .ni-live { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ── Deployment / sovereignty ────────────────────────────────── */

.deploy {
  max-width: 1140px;
  margin: 0 auto;
  padding: clamp(56px, 7vw, 90px) clamp(20px, 4vw, 48px) 20px;
}

.deploy-head { max-width: 880px; margin-bottom: 48px; }
.deploy-head p { color: var(--ink-2); font-size: 16.5px; max-width: 62ch; }

.dgrid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 18px;
}

/* scoped placement - overrides the bento's nth-child rules */
.dgrid > .card { grid-column: span 6; grid-row: auto; }
.dgrid > .card.d-span7 { grid-column: span 7; }
.dgrid > .card.d-span6 { grid-column: span 6; }
.dgrid > .card.d-span5 { grid-column: span 5; }
.dgrid > .card.d-span12 { grid-column: 1 / -1; }

.dgrid .card p strong { color: var(--ink); font-weight: 600; }
.dgrid .card { display: flex; flex-direction: column; }
.dgrid .card .card-foot { margin-top: auto; }

/* perimeter diagram */
.prem-svg { width: 100%; margin: 20px 0 4px; }
.p-perim {
  fill: color-mix(in srgb, var(--accent) 4.5%, transparent);
  stroke: var(--line-strong);
  stroke-width: 1.2;
  stroke-dasharray: 5 4;
}
.p-box { fill: color-mix(in srgb, var(--surface) 70%, transparent); stroke: color-mix(in srgb, var(--accent) 45%, transparent); stroke-width: 1.1; }
.p-link { stroke: var(--line-strong); stroke-width: 1.2; }
.p-in { font-family: var(--mono); font-size: 9px; fill: var(--ink-2); }
.p-lab { font-family: var(--mono); font-size: 9px; fill: var(--ink-3); letter-spacing: 0.06em; }
.p-egress { stroke: color-mix(in srgb, var(--rose) 50%, transparent); stroke-width: 1.2; stroke-dasharray: 4 4; }
.p-cross { stroke: var(--rose); stroke-width: 1.6; stroke-linecap: round; fill: none; }
.p-no { font-family: var(--mono); font-size: 9px; fill: var(--rose); letter-spacing: 0.06em; }

/* coverage list */
.reg-list { list-style: none; margin-top: 18px; }
.reg-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 0;
}
.reg-list li + li { border-top: 1px solid var(--line); }

.rl-name {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 14px;
  color: var(--ink);
  min-width: 0;
}
.rl-name b {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--ink-3);
}

.pill {
  flex: none;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 99px;
  border: 1px solid var(--line-strong);
  color: var(--ink-3);
}
.pill-live  { color: var(--teal); border-color: color-mix(in srgb, var(--teal) 42%, transparent); background: color-mix(in srgb, var(--teal) 9%, transparent); }
.pill-draft { color: var(--amber); border-color: color-mix(in srgb, var(--amber) 42%, transparent); background: color-mix(in srgb, var(--amber) 8%, transparent); }
.pill-req   { color: var(--violet); border-color: color-mix(in srgb, var(--violet) 42%, transparent); background: color-mix(in srgb, var(--violet) 8%, transparent); }

/* pre-enforcement card + timeline */
.card-draft {
  background: linear-gradient(160deg, color-mix(in srgb, var(--amber) 13%, var(--panel-2)), var(--panel) 65%);
  border-color: color-mix(in srgb, var(--amber) 24%, transparent);
}
.card-draft .card-idx { color: var(--amber); }
.card-draft h3 { max-width: 30ch; }
.card-draft h3 em {
  font-family: Georgia, "Times New Roman", serif;
  font-style: italic;
  font-weight: 500;
  color: var(--amber);
}
.card-draft p { max-width: 80ch; }

.tline { margin-top: 26px; }

.tl-cap {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 10.5px !important;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent) !important;
  margin-bottom: 16px;
}
.tl-cap::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 45%, transparent), transparent);
}

.tl-steps { display: grid; grid-template-columns: repeat(4, 1fr); list-style: none; }

.tl-step {
  position: relative;
  padding: 18px 18px 0 0;
  border-top: 1px dashed color-mix(in srgb, var(--amber) 50%, transparent);
}
.tl-step.tl-live { border-top-style: solid; border-top-color: color-mix(in srgb, var(--teal) 60%, transparent); }

.tl-dot {
  position: absolute;
  top: -5px;
  left: 0;
  width: 10px; height: 10px;
  border-radius: 50%;
  border: 1.5px solid var(--amber);
  background: color-mix(in srgb, var(--amber) 22%, var(--surface));
}
.tl-live .tl-dot { border-color: var(--teal); background: var(--teal); }

.tl-step b {
  display: block;
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ink);
  margin-bottom: 5px;
}
.tl-live b { color: var(--teal); }
.tl-note { display: block; font-size: 12.5px; color: var(--ink-3); }

/* versioning notes */
.ver-notes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 24px;
  padding-top: 4px;
}
.ver-notes div { display: flex; flex-direction: column; gap: 6px; border-top: 1px solid var(--line); padding-top: 12px; }
.ver-notes b {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}
.ver-notes span { font-size: 13px; color: var(--ink-2); line-height: 1.45; }

/* byline */
.cta-by {
  margin-top: 10px !important;
  font-family: var(--mono);
  font-size: 12px !important;
  letter-spacing: 0.06em;
  color: var(--ink-3) !important;
}
.cta-by a, .foot a {
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: color 0.2s, border-color 0.2s;
}
.cta-by a:hover, .foot a:hover { color: var(--accent); border-color: var(--accent); }

@media (max-width: 960px) {
  .dgrid > .card,
  .dgrid > .card.d-span7,
  .dgrid > .card.d-span6,
  .dgrid > .card.d-span5 { grid-column: 1 / -1; }
  .tl-steps { grid-template-columns: repeat(2, 1fr); row-gap: 20px; }
}

@media (max-width: 560px) {
  .ver-notes { grid-template-columns: 1fr; gap: 12px; }
  .reg-list li { flex-wrap: wrap; }
  /* timeline turns vertical: the rail moves to the left edge */
  .tl-steps { grid-template-columns: 1fr; row-gap: 0; }
  .tl-step { border-top: none; border-left: 1px dashed color-mix(in srgb, var(--amber) 50%, transparent); padding: 0 0 20px 20px; }
  .tl-step.tl-live { border-top: none; border-left-style: solid; border-left-color: color-mix(in srgb, var(--teal) 60%, transparent); }
  .tl-dot { top: 1px; left: -5.5px; }
}

/* ══════════ SCREENS — product gallery ══════════ */
.screens {
  max-width: 1140px;
  margin: 0 auto;
  padding: clamp(40px, 6vw, 70px) clamp(20px, 4vw, 48px) clamp(30px, 5vw, 60px);
}
.screens-head { max-width: 680px; margin-bottom: 40px; }
.screens-head h2 {
  font-size: clamp(28px, 3.6vw, 42px);
  line-height: 1.12;
  font-weight: 700;
  letter-spacing: -0.024em;
  margin-bottom: 16px;
}
.screens-head p { color: var(--ink-2); font-size: 16.5px; }

/* A compact palette: every screen is a small, uniform tile. Full size is one
   click away in the viewer, so nothing here needs to be large. */
.shots {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.shot {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 0;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: zoom-in;
}
.shot-frame {
  position: relative;
  margin: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
  box-shadow: 0 24px 60px -30px var(--shadow);
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}
.shot:hover .shot-frame {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line-strong));
  transform: translateY(-3px);
  box-shadow: 0 30px 70px -28px var(--shadow);
}
.shot:focus-visible { outline: none; }
.shot:focus-visible .shot-frame { outline: 2px solid var(--accent); outline-offset: 3px; }

.shot-chrome {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 6px 9px;
  background: color-mix(in srgb, var(--ink) 5%, transparent);
  border-bottom: 1px solid var(--line);
}
.shot-chrome i { width: 6px; height: 6px; border-radius: 50%; background: var(--line-strong); }
.shot-chrome i:first-child { background: rgba(226, 94, 128, 0.6); }
.shot-chrome i:nth-child(2) { background: rgba(193, 129, 28, 0.6); }
.shot-chrome i:nth-child(3) { background: rgba(29, 165, 146, 0.55); }
.shot-chrome span {
  flex: 1; min-width: 0;
  font-family: var(--mono);
  font-size: 9.5px;
  color: var(--ink-3);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.shot-frame img {
  display: block;
  width: 100%;
  /* the width/height attributes are presentational hints that would otherwise
     pin the height to 1150px and defeat aspect-ratio entirely */
  height: auto;
  /* the source ratio, so a thumbnail shows the whole screen rather than a crop */
  aspect-ratio: 2000 / 1150;
  background: var(--panel-2);
  object-fit: cover;
  object-position: left top;
  transition: transform 0.6s var(--ease, cubic-bezier(0.22,1,0.36,1));
}
.shot:hover .shot-frame img { transform: scale(1.03); }

.shot-zoom {
  position: absolute;
  right: 10px; bottom: 10px;
  padding: 5px 11px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 78%, transparent);
  border: 1px solid var(--line-strong);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink);
  opacity: 0;
  transform: translateY(5px);
  transition: opacity 0.25s, transform 0.25s;
}
.shot:hover .shot-zoom, .shot:focus-visible .shot-zoom { opacity: 1; transform: none; }

.shot-cap { display: flex; flex-direction: column; gap: 3px; padding: 0 2px; }
.shot-cap b { font-size: 13px; font-weight: 650; letter-spacing: -0.01em; color: var(--ink); }
.shot-cap span { font-size: 11.5px; color: var(--ink-2); line-height: 1.45; }

@media (max-width: 1080px) { .shots { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 820px)  { .shots { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 540px) {
  .shots { grid-template-columns: 1fr; }
  .shot-frame img { aspect-ratio: 2000 / 1150; }
}
@media (prefers-reduced-motion: reduce) {
  .shot-frame, .shot-frame img, .shot-zoom { transition: none; }
  .shot:hover .shot-frame { transform: none; }
  .shot:hover .shot-frame img { transform: none; }
}

/* ══════════ SCREEN LIGHTBOX ══════════ */
.glb {
  width: min(96vw, 1500px);
  max-width: 96vw;
  max-height: 94vh;
  margin: auto;
  padding: 0;
  border: 0;
  background: transparent;
  overflow: visible;
}
.glb::backdrop { background: rgba(4, 7, 14, 0.86); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.glb[open] { animation: glb-in 260ms cubic-bezier(0.22,1,0.36,1) both; }
@keyframes glb-in { from { opacity: 0; transform: scale(0.985); } to { opacity: 1; transform: none; } }
.glb-figure { margin: 0; display: flex; flex-direction: column; gap: 12px; }
.glb-img {
  display: block;
  width: 100%;
  max-height: 74vh;
  transition: opacity 0.22s ease;
  object-fit: contain;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--panel);
  box-shadow: 0 40px 100px -40px #000;
}
.glb-cap {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  font-size: 13.5px; color: var(--ink-2); padding: 0 4px;
}
.glb-count { color: var(--ink-3); flex: none; font-family: var(--mono); font-size: 12px; }
.glb-close, .glb-nav {
  position: fixed;
  display: grid; place-items: center;
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  color: var(--ink);
  cursor: pointer;
  transition: transform 0.16s, background 0.16s, border-color 0.16s;
  z-index: 2;
}
.glb-close:hover, .glb-nav:hover { background: var(--panel-2); border-color: var(--accent); transform: scale(1.06); }
.glb-close { top: 20px; right: 20px; }
.glb-nav { top: 50%; transform: translateY(-50%); }
.glb-nav:hover { transform: translateY(-50%) scale(1.06); }
.glb-prev { left: 20px; }
.glb-next { right: 20px; }
.glb[data-single="true"] .glb-nav, .glb[data-single="true"] .glb-count,
.glb[data-single="true"] .glb-strip { display: none; }
.glb-img.is-swapping { opacity: 0; }

/* filmstrip: jump straight to any screen without cycling through the rest */
.glb-strip {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  padding: 2px 4px 0;
}
.glb-thumb {
  width: 92px;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  overflow: hidden;
  background: var(--panel);
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.18s, border-color 0.18s, transform 0.18s;
}
.glb-thumb img { display: block; width: 100%; height: auto; aspect-ratio: 2000 / 1150;
                 object-fit: cover; }
.glb-thumb:hover { opacity: 0.85; transform: translateY(-2px); }
.glb-thumb[aria-current="true"] { opacity: 1; border-color: var(--accent); }
.glb-thumb:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
@media (max-width: 720px) { .glb-strip { display: none; } }
@media (max-width: 640px) {
  .glb-prev { left: 10px; } .glb-next { right: 10px; }
  .glb-close { top: 10px; right: 10px; }
}
body.glb-open { overflow: hidden; }