/* ══════════════════════════════════════════════════════════════
   Digraph — landing page styles.
   Dark, blueprint-flavoured, no external assets or fonts.
   ══════════════════════════════════════════════════════════════ */

:root {
  --bg: #08080b;
  --bg-2: #0c0c11;
  --surface: #131319;
  --surface-2: #1a1a22;
  --surface-3: #1e1e26;
  --border: #26262f;
  --border-2: #353541;
  --text: #ececf1;
  --muted: #a2a2af;
  --dim: #70707d;
  --accent: #7b8cff;
  --accent-2: #2563eb;
  --accent-soft: rgba(123, 140, 255, 0.12);
  --ok: #4ade80;
  --warn: #fbbf24;
  --danger: #f87171;
  --teal: #2dd4bf;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  --mono: "Cascadia Code", "Fira Code", Consolas, ui-monospace, monospace;
  --ui: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --max: 1180px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(37, 99, 235, 0.18), transparent 62%),
    radial-gradient(820px 520px at 92% 2%, rgba(123, 140, 255, 0.10), transparent 58%),
    var(--bg);
  color: var(--text);
  font: 16px/1.65 var(--ui);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Blueprint grid, faded at the edges. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 72%);
  mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 72%);
}

.topbar, main, .footer { position: relative; z-index: 1; }

::selection { background: rgba(123, 140, 255, 0.32); }

a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; }
h1, h2, h3, h4 { margin: 0; line-height: 1.15; letter-spacing: -0.02em; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
code {
  font-family: var(--mono);
  font-size: 0.88em;
  color: #cfd3ff;
  background: rgba(123, 140, 255, 0.10);
  border: 1px solid rgba(123, 140, 255, 0.14);
  border-radius: 5px;
  padding: 1px 5px;
  overflow-wrap: anywhere;
}

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

.skip {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--accent-2);
  color: #fff;
  border-radius: 8px;
  transition: top 0.2s;
}
.skip:focus { top: 12px; }

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 28px;
}

/* ── Buttons ───────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 11px;
  border: 1px solid transparent;
  font: 600 15px/1 var(--ui);
  cursor: pointer;
  transition: transform 0.16s ease, border-color 0.16s ease, background 0.16s ease, box-shadow 0.16s ease;
  white-space: nowrap;
}
.btn--sm { min-height: 38px; padding: 0 16px; font-size: 13px; border-radius: 9px; }
.btn--primary {
  background: linear-gradient(180deg, #5d76ff 0%, #3554e0 100%);
  color: #fff;
  box-shadow: 0 10px 26px rgba(53, 84, 224, 0.34), inset 0 1px 0 rgba(255, 255, 255, 0.22);
}
.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 32px rgba(53, 84, 224, 0.44), inset 0 1px 0 rgba(255, 255, 255, 0.28);
}
.btn--ghost {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--border-2);
  color: var(--text);
}
.btn--ghost:hover { border-color: var(--accent); background: var(--accent-soft); }
.btn:active { transform: translateY(0); }

/* ── Top bar ───────────────────────────────────────────── */

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(8, 8, 11, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.topbar__inner {
  display: flex;
  align-items: center;
  gap: 26px;
  height: 66px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.brand__mark { flex-shrink: 0; }
.brand__mark circle { fill: none; stroke: var(--accent); stroke-width: 2; }
.brand__mark path { fill: none; stroke: var(--accent); stroke-width: 1.6; opacity: 0.7; }
.brand__name {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.brand__tag {
  font-size: 11px;
  color: var(--dim);
  padding-left: 10px;
  border-left: 1px solid var(--border);
  white-space: nowrap;
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav a {
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--muted);
  transition: color 0.16s, background 0.16s;
}
.nav a:hover { color: var(--text); background: rgba(255, 255, 255, 0.05); }
.nav__cta { display: none; }

.topbar__cta { margin-left: 4px; }

.burger {
  display: none;
  width: 42px;
  height: 38px;
  margin-left: auto;
  padding: 0;
  border: 1px solid var(--border-2);
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
}
.burger span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

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

.hero {
  position: relative;
  padding: 78px 0 96px;
  overflow: hidden;
}
.hero__glow {
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 720px;
  background: radial-gradient(600px 300px at 50% 0%, rgba(123, 140, 255, 0.16), transparent 70%);
  pointer-events: none;
}
.hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.02fr 1fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 18px;
  font: 600 12px/1 var(--ui);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--accent);
}
.pulse {
  position: relative;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ok);
  flex-shrink: 0;
}
.pulse::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid rgba(74, 222, 128, 0.55);
  animation: ring 2s ease-out infinite;
}
.pulse--sm { width: 6px; height: 6px; }
@keyframes ring {
  0% { transform: scale(0.6); opacity: 0.9; }
  100% { transform: scale(1.6); opacity: 0; }
}

.hero h1 {
  font-size: clamp(38px, 5.2vw, 62px);
  font-weight: 800;
  letter-spacing: -0.035em;
}
.grad {
  background: linear-gradient(96deg, #8fa0ff 0%, #5f7bff 45%, #8ad7ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead {
  margin-top: 22px;
  max-width: 560px;
  font-size: 17px;
  line-height: 1.7;
  color: var(--muted);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}
.hero__stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 46px;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}
.hero__stats dt {
  font: 700 22px/1.2 var(--mono);
  letter-spacing: -0.02em;
  color: var(--text);
}
.hero__stats dd {
  margin: 5px 0 0;
  font-size: 12px;
  line-height: 1.4;
  color: var(--dim);
}

/* ── Mock window ───────────────────────────────────────── */

.mock {
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #101017, #0b0b10);
  box-shadow: var(--shadow), 0 0 0 1px rgba(123, 140, 255, 0.06);
  overflow: hidden;
}
.mock__bar {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 40px;
  padding: 0 12px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
}
.mock__dots { display: flex; gap: 6px; }
.mock__dots i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #3a3a45;
}
.mock__dots i:first-child { background: #ef4444aa; }
.mock__dots i:nth-child(2) { background: #f59e0baa; }
.mock__dots i:nth-child(3) { background: #22c55eaa; }
.mock__url {
  flex: 1;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.25);
  font: 11px/1.4 var(--mono);
  color: var(--dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mock__live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font: 700 10px/1 var(--ui);
  letter-spacing: 0.08em;
  color: var(--ok);
}
.mock__canvas {
  position: relative;
  padding: 10px;
  background:
    radial-gradient(320px 200px at 50% 45%, rgba(123, 140, 255, 0.06), transparent 70%),
    #0b0b10;
}
.topology { display: block; width: 100%; height: auto; }

/* SVG graph styles live here rather than in an inline <style>, so the page
   can run under a strict CSP (style-src 'self'). */
.topology .edge {
  fill: none;
  stroke: #39427a;
  stroke-width: 1.6;
  stroke-dasharray: 6 10;
  animation: dash 2.8s linear infinite;
}
.topology .edge--warm { stroke: #6b4a8a; }
@keyframes dash { to { stroke-dashoffset: -32; } }
.topology .n-name { fill: #fff; font: 700 12px "Segoe UI", system-ui, sans-serif; }
.topology .n-sub { fill: #b9b9c4; font: 9px var(--mono); }
.topology .n-label { fill: rgba(255, 255, 255, 0.42); font: 700 8px "Segoe UI", system-ui, sans-serif; letter-spacing: 0.6px; }
.topology .n-value { fill: #e7e7ec; font: 10px var(--mono); }
.topology .n-badge { font: 700 9px "Segoe UI", system-ui, sans-serif; }
.topology .shell { fill: #1e1e24; }
.topology .border { fill: none; stroke: #3a3a42; stroke-width: 2; }
.topology .row-line { stroke: rgba(255, 255, 255, 0.06); stroke-width: 1; }

.mock__hud {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  padding: 9px 14px;
  border-top: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  font: 10.5px/1.3 var(--mono);
  color: var(--dim);
}
.mock__hud b { color: var(--text); font-weight: 600; }
.mock__hud-spacer { flex: 1 1 auto; }

/* ── Sections ──────────────────────────────────────────── */

.section { padding: 96px 0; }
.section--tight { padding: 76px 0; }
.section--alt {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.018), transparent 30%, transparent 70%, rgba(255, 255, 255, 0.018)),
    var(--bg-2);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.section__head { max-width: 760px; margin-bottom: 46px; }
.section__head h2 {
  font-size: clamp(27px, 3.4vw, 40px);
  font-weight: 750;
}
.section__lead {
  margin-top: 16px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--muted);
}

/* ── Problem ───────────────────────────────────────────── */

.questions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.question {
  position: relative;
  padding: 26px 24px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.025), transparent);
  transition: border-color 0.2s, transform 0.2s;
}
.question:hover { border-color: var(--border-2); transform: translateY(-2px); }
.question__num {
  font: 700 12px/1 var(--mono);
  color: var(--accent);
  letter-spacing: 0.1em;
}
.question h3 { margin: 14px 0 10px; font-size: 18px; font-weight: 700; }
.question p { color: var(--muted); font-size: 14px; line-height: 1.65; }

/* ── Features ──────────────────────────────────────────── */

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(292px, 1fr));
  gap: 16px;
}
.feature {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.feature:hover {
  transform: translateY(-3px);
  border-color: rgba(123, 140, 255, 0.35);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}
.feature--accent {
  background:
    linear-gradient(180deg, rgba(123, 140, 255, 0.12), rgba(123, 140, 255, 0.02)),
    var(--surface);
  border-color: rgba(123, 140, 255, 0.28);
}
.feature__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 11px;
  background: var(--accent-soft);
  border: 1px solid rgba(123, 140, 255, 0.18);
  color: var(--accent);
}
.feature__icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.feature h3 { font-size: 17px; font-weight: 700; }
.feature p { color: var(--muted); font-size: 14px; line-height: 1.65; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 6px; }
.tags li {
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font: 11px/1.7 var(--mono);
  color: var(--dim);
}

/* ── How it works ──────────────────────────────────────── */

.flow {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.015);
  overflow-x: auto;
}
.flow__node {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 148px;
  padding: 14px 16px;
  border: 1px solid var(--border-2);
  border-radius: 12px;
  background: var(--surface-2);
}
.flow__node--accent {
  border-color: rgba(123, 140, 255, 0.45);
  background: linear-gradient(180deg, rgba(123, 140, 255, 0.14), rgba(123, 140, 255, 0.03));
}
.flow__kicker {
  font: 700 10px/1 var(--ui);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dim);
}
.flow__node strong { font-size: 14px; }
.flow__meta { font: 11px/1.4 var(--mono); color: var(--muted); }
.flow__col { display: flex; flex-direction: column; gap: 8px; }
.flow__arrow {
  position: relative;
  flex-shrink: 0;
  width: 26px;
  height: 1px;
  background: var(--border-2);
}
.flow__arrow::after {
  content: "";
  position: absolute;
  right: 0;
  top: -3px;
  width: 7px;
  height: 7px;
  border-top: 1px solid var(--border-2);
  border-right: 1px solid var(--border-2);
  transform: rotate(45deg);
}
.how__notes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 18px;
}
.how__notes p {
  padding: 18px 20px;
  border-left: 2px solid rgba(123, 140, 255, 0.4);
  background: rgba(255, 255, 255, 0.015);
  border-radius: 0 10px 10px 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
}
.how__notes b { color: var(--text); }

/* Real screenshot of the running contour */

.shot {
  margin: 18px 0 0;
}
.shot__svg {
  position: relative;
  aspect-ratio: 960 / 610;
  overflow: hidden;
  background: #1a1a1f;
}
/* The export is a whole viewport (1692×837) with the contour in the middle.
   Scale it up and shift it left/up so the visible box is the contour itself. */
.shot__svg img {
  position: absolute;
  top: 0;
  left: 0;
  width: 176.25%;
  max-width: none;
  height: auto;
  transform: translate(-27.187%, -11.352%);
}
.shot__caption {
  margin-top: 12px;
  padding-left: 2px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--dim);
}
.shot__caption b { color: var(--text); font-weight: 600; }

/* ── Security ──────────────────────────────────────────── */

.security {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: center;
}
.security h2 { font-size: clamp(26px, 3.2vw, 38px); margin-bottom: 16px; }
.checklist { display: flex; flex-direction: column; gap: 12px; margin-top: 26px; }
.checklist li {
  position: relative;
  padding-left: 30px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
}
.checklist li b { color: var(--text); }
.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 1px;
  width: 19px;
  height: 19px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 5px;
  background: rgba(74, 222, 128, 0.12);
  border: 1px solid rgba(74, 222, 128, 0.28);
  color: var(--ok);
  font-size: 12px;
  font-weight: 700;
}
.security__panel { display: flex; flex-direction: column; gap: 14px; }
.security__badges { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 11px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
  font-size: 12px;
  color: var(--muted);
}
.dot { width: 6px; height: 6px; border-radius: 50%; }
.dot--ok { background: var(--ok); box-shadow: 0 0 8px rgba(74, 222, 128, 0.6); }

/* ── Code cards ────────────────────────────────────────── */

.codecard {
  border: 1px solid var(--border-2);
  border-radius: 12px;
  background: #0b0b10;
  overflow: hidden;
}
.codecard__head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.025);
  font: 600 11px/1 var(--mono);
  letter-spacing: 0.04em;
  color: var(--dim);
}
.codecard pre {
  margin: 0;
  padding: 16px;
  overflow-x: auto;
  font: 12.5px/1.75 var(--mono);
  color: #d7d9e6;
}
.codecard code { background: none; border: 0; padding: 0; color: inherit; font-size: inherit; }
.c-muted { color: #6c6f80; }
.c-ok { color: var(--ok); }
.c-bad { color: var(--danger); }

.copy {
  margin-left: auto;
  padding: 5px 10px;
  border: 1px solid var(--border-2);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font: 600 11px/1 var(--ui);
  cursor: pointer;
  transition: color 0.16s, border-color 0.16s;
}
.copy:hover { color: var(--text); border-color: var(--accent); }

.codecard__tabs {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: -6px;
}
.codecard__tab {
  padding: 5px 8px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--dim);
  font: 600 11px/1 var(--mono);
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: color 0.16s, background 0.16s;
}
.codecard__tab:hover { color: var(--text); }
.codecard__tab.is-active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}
.codecard__tab:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.codecard pre.codecard__panel {
  max-height: 360px;
  overflow: auto;
}
.codecard pre[hidden] { display: none; }

/* ── Editions ──────────────────────────────────────────── */

.editions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.edition {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}
.edition--pro {
  border-color: rgba(123, 140, 255, 0.4);
  background:
    linear-gradient(180deg, rgba(123, 140, 255, 0.13), rgba(123, 140, 255, 0.02)),
    var(--surface);
  box-shadow: 0 20px 50px rgba(37, 99, 235, 0.14);
}
.edition__name { display: block; font-size: 22px; font-weight: 750; letter-spacing: -0.02em; }
.edition__for { display: block; margin-top: 6px; font-size: 13px; color: var(--dim); }
.edition__list { display: flex; flex-direction: column; gap: 9px; }
.edition__list li {
  position: relative;
  padding-left: 26px;
  font-size: 14px;
  color: var(--muted);
}
.edition__list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-weight: 700;
}
.edition .btn { margin-top: auto; align-self: flex-start; }

.compare {
  margin-top: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}
.compare table { width: 100%; border-collapse: collapse; font-size: 14px; }
.compare th, .compare td {
  padding: 13px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.compare thead th {
  font: 700 11px/1 var(--ui);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dim);
  background: rgba(255, 255, 255, 0.025);
}
.compare thead th:not(:first-child), .compare td:not(:first-child) { text-align: center; width: 150px; }
.compare tbody tr:last-child td { border-bottom: 0; }
.compare td { color: var(--muted); }
.compare td:first-child { color: var(--text); }
.compare .yes { color: var(--ok); font-weight: 700; }
.compare .no { color: var(--dim); }
.compare .muted { color: var(--dim); font-size: 13px; }
.compare__note {
  padding: 14px 18px;
  border-top: 1px solid var(--border);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--dim);
}

/* ── Quick start ───────────────────────────────────────── */

.start {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: start;
}
.start__hint { margin-top: 12px; font-size: 13px; color: var(--dim); }
.start__side { display: flex; flex-direction: column; gap: 12px; }
.start__item {
  display: flex;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.015);
}
.start__num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  border-radius: 8px;
  background: var(--accent-soft);
  border: 1px solid rgba(123, 140, 255, 0.22);
  color: var(--accent);
  font: 700 12px/1 var(--mono);
}
.start__item b { display: block; font-size: 14px; margin-bottom: 3px; }
.start__item p { font-size: 13px; line-height: 1.6; color: var(--muted); }

/* ── Roadmap ───────────────────────────────────────────── */

.roadmap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.roadmap li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  border: 1px dashed var(--border-2);
  border-radius: 12px;
  font-size: 13px;
  color: var(--muted);
}
.roadmap span {
  font: 700 11px/1 var(--ui);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

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

.cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 38px 40px;
  border: 1px solid rgba(123, 140, 255, 0.3);
  border-radius: 20px;
  background:
    radial-gradient(500px 200px at 10% 0%, rgba(123, 140, 255, 0.18), transparent 70%),
    linear-gradient(180deg, rgba(123, 140, 255, 0.08), rgba(123, 140, 255, 0.02)),
    var(--surface);
}
.cta h2 { font-size: clamp(24px, 3vw, 32px); }
.cta p { margin-top: 10px; color: var(--muted); font-size: 15px; }
.cta__actions { display: flex; gap: 12px; flex-shrink: 0; }

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

.footer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 34px 0;
  background: rgba(0, 0, 0, 0.25);
}
.footer__inner {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.footer__brand { display: flex; align-items: center; gap: 10px; }
.footer__brand b { display: block; font-size: 14px; }
.footer__brand span { display: block; font-size: 11px; color: var(--dim); }
.footer__nav { display: flex; gap: 16px; margin-left: auto; flex-wrap: wrap; }
.footer__nav a { font-size: 13px; color: var(--muted); }
.footer__nav a:hover { color: var(--text); }
.footer__copy { width: 100%; font-size: 11.5px; color: var(--dim); }

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

.reveal { transition: opacity 0.6s ease, transform 0.6s ease; }
.js .reveal { opacity: 0; transform: translateY(16px); }
.js .reveal.is-visible { opacity: 1; transform: none; }

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

@media (max-width: 1080px) {
  .hero__grid { grid-template-columns: 1fr; gap: 44px; }
  .hero__copy { max-width: 720px; }
  .hero__stats { max-width: 640px; }
  .questions { grid-template-columns: 1fr; }
  .security { grid-template-columns: 1fr; }
  .start { grid-template-columns: 1fr; }
  .roadmap { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .brand__tag { display: none; }
  .nav {
    position: absolute;
    top: 66px;
    right: 16px;
    left: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 10px;
    border: 1px solid var(--border-2);
    border-radius: 14px;
    background: #101017;
    box-shadow: var(--shadow);
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 11px 12px; font-size: 15px; }
  .nav__cta {
    display: block;
    margin-top: 6px;
    text-align: center;
    background: linear-gradient(180deg, #5d76ff, #3554e0);
    color: #fff !important;
    font-weight: 600;
  }
  .burger { display: block; }
  .topbar__cta { display: none; }
  .editions { grid-template-columns: 1fr; }
  /* The SVG export uses foreignObject, which mobile browsers do not paint
     reliably. Desktop keeps the vector; phones and tablets skip the block. */
  .shot { display: none; }
  .how__notes { grid-template-columns: 1fr; }
  .flow { flex-direction: column; align-items: stretch; }
  .flow__col { flex-direction: column; }
  .flow__arrow {
    width: 1px;
    height: 20px;
    margin: 0 auto;
  }
  .flow__arrow::after {
    right: -3px;
    top: auto;
    bottom: 0;
    transform: rotate(135deg);
  }
  .compare { overflow-x: auto; }
  .compare table { min-width: 620px; }
  .cta { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 640px) {
  .container { padding: 0 18px; }
  .section { padding: 72px 0; }
  .section--tight { padding: 58px 0; }
  .hero { padding: 52px 0 64px; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .lead { font-size: 15.5px; }
  .hero__actions .btn { flex: 1 1 100%; }
  .roadmap { grid-template-columns: 1fr; }
  .cta { padding: 26px 22px; }
  .cta__actions { width: 100%; }
  .cta__actions .btn { flex: 1 1 100%; }
  .footer__nav { margin-left: 0; }
  .mock__bar { gap: 8px; }
  .mock__url { font-size: 10px; }
  .mock__hud { gap: 10px; font-size: 9.5px; }
  .edition { padding: 24px; }
  .flow { padding: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .js .reveal { opacity: 1; transform: none; }
  .topology .edge { animation: none !important; }
}