/* Flagger — site styles. No build step, no external requests. */

:root {
  --bg: #f5f4f0;
  --surface: #ffffff;
  --surface-2: #eeede8;
  --ink: #15171a;
  --ink-2: #33373d;
  --muted: #5f646b;
  --line: #dcdad3;
  --line-strong: #bdbab1;
  --accent: #e5620e;          /* safety orange — marks, fills, rules */
  --accent-ink: #a94604;      /* orange for text on light (AA) */
  --accent-soft: rgba(229, 98, 14, 0.1);
  --focus: #e5620e;
  --danger: #b42318;
  --ok: #1f7a3d;

  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --wrap: 1120px;
  --gutter: 20px;
  --radius: 6px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1113;
    --surface: #16191c;
    --surface-2: #1c2024;
    --ink: #ecebe6;
    --ink-2: #c9c8c2;
    --muted: #979ca3;
    --line: #2a2e33;
    --line-strong: #3d4248;
    --accent: #f0782a;
    --accent-ink: #f59a5c;
    --accent-soft: rgba(240, 120, 42, 0.14);
    --danger: #f97066;
    --ok: #4ac27a;
    color-scheme: dark;
  }
}

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

html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, video, svg { display: block; max-width: 100%; }

a { color: inherit; text-decoration-color: var(--line-strong); text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--accent); }

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

.skip {
  position: absolute; left: 12px; top: -48px;
  background: var(--ink); color: var(--bg);
  padding: 8px 12px; border-radius: var(--radius); z-index: 10;
}
.skip:focus { top: 12px; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- Type ---------- */

h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.02em; line-height: 1.1; text-wrap: balance; }
h1 { font-size: clamp(2.4rem, 1.4rem + 4.6vw, 4.6rem); letter-spacing: -0.035em; line-height: 1.02; }
h2 { font-size: clamp(1.6rem, 1.2rem + 1.6vw, 2.35rem); }
h3 { font-size: 1.1rem; letter-spacing: -0.01em; line-height: 1.3; }
p { margin: 0; text-wrap: pretty; }

.lead { font-size: clamp(1.08rem, 1rem + 0.4vw, 1.25rem); color: var(--ink-2); max-width: 58ch; }
.muted { color: var(--muted); }

.label {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

code, .mono { font-family: var(--font-mono); font-size: 0.9em; }
code {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.05em 0.35em;
  white-space: nowrap;
}

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

.brand {
  display: inline-flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--ink);
  font-weight: 650; font-size: 1.14rem; letter-spacing: -0.02em;
}
.brand svg { width: 24px; height: 24px; flex: none; }

/* ---------- Header / footer ---------- */

.site-header { border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; }
.site-header nav { display: flex; align-items: center; gap: 22px; font-size: 0.94rem; }
.site-header nav a { text-decoration: none; color: var(--ink-2); }
.site-header nav a:hover { color: var(--ink); }
.tag {
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--muted); border: 1px solid var(--line-strong); border-radius: 999px; padding: 2px 8px; margin-left: 4px;
}

.site-footer { border-top: 1px solid var(--line); margin-top: 0; }
.site-footer .wrap {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px;
  padding-top: 28px; padding-bottom: 36px; font-size: 0.9rem; color: var(--muted);
}
.site-footer .brand { font-size: 1rem; }
.site-footer .brand svg { width: 18px; height: 18px; }
.site-footer a { color: var(--muted); }

/* ---------- Buttons ---------- */

.actions { display: flex; flex-wrap: wrap; gap: 12px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 46px; padding: 0 20px;
  font: inherit; font-size: 0.97rem; font-weight: 550;
  border-radius: var(--radius); border: 1px solid transparent;
  text-decoration: none; cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: var(--ink-2); }
.btn-secondary { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-secondary:hover { border-color: var(--ink); }
.btn[disabled] { opacity: 0.55; cursor: progress; }
.btn .arrow { transition: transform 0.15s ease; }
.btn:hover .arrow { transform: translateX(2px); }

/* ---------- Landing ---------- */

.hero { padding: clamp(56px, 10vw, 128px) 0 clamp(48px, 7vw, 88px); }
.hero h1 { max-width: 15ch; margin: 22px 0 24px; }
.hero .lead { margin-bottom: 36px; }

.status {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink-2);
}
.status::before {
  /* Same outline as the brand mark (24×24 viewBox path in the header SVG) */
  content: ""; width: 14px; height: 14px; flex: none; background: var(--accent);
  clip-path: polygon(50% 10.83%, 77.92% 38.75%, 66.67% 50%, 77.92% 61.25%, 50% 89.17%, 10.83% 50%);
}

.glance { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; padding: 0; margin: 0; list-style: none; }
.glance li { padding: 28px 28px 32px 0; }
.glance li + li { padding-left: 28px; border-left: 1px solid var(--line); }
.glance p { margin-top: 8px; color: var(--ink-2); }

.section { padding: clamp(64px, 9vw, 112px) 0; }
.section + .section { border-top: 1px solid var(--line); }

.split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(32px, 6vw, 88px); align-items: start; }
.split h2 { margin: 14px 0 16px; }
.split .contact { margin-top: 28px; font-size: 0.95rem; color: var(--muted); }
.split .contact a { color: var(--ink); }

/* ---------- Forms ---------- */

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: clamp(20px, 3.5vw, 32px);
}

.form { display: grid; gap: 18px; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 6px; }
.field label { font-size: 0.88rem; font-weight: 550; color: var(--ink-2); }
.field .opt { font-weight: 400; color: var(--muted); }

input[type="text"], input[type="email"], input[type="password"], textarea {
  width: 100%;
  font: inherit; font-size: 1rem; color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 11px 12px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
textarea { min-height: 112px; resize: vertical; line-height: 1.5; }
input:hover, textarea:hover { border-color: var(--muted); }
input:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
input::placeholder, textarea::placeholder { color: var(--muted); opacity: 0.8; }

.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

.turnstile-slot { min-height: 65px; }

.form-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 18px; }
.form-msg { font-size: 0.92rem; color: var(--muted); }
.form-msg[data-state="ok"] { color: var(--ok); }
.form-msg[data-state="error"] { color: var(--danger); }

.done { display: grid; gap: 10px; }
.done h3 { display: flex; align-items: center; gap: 10px; }
.done h3::before { content: ""; width: 10px; height: 10px; background: var(--accent); transform: rotate(45deg); flex: none; }

/* ---------- Gate / message pages ---------- */

.center-page { min-height: 100vh; min-height: 100dvh; display: grid; grid-template-rows: auto 1fr auto; }
.gate { display: grid; place-items: center; padding: 48px var(--gutter); }
.gate .card { width: 100%; max-width: 400px; }
.gate h1 { font-size: 1.5rem; letter-spacing: -0.02em; margin: 10px 0 8px; }
.gate p { color: var(--muted); font-size: 0.95rem; }
.gate .form { margin-top: 22px; }
.gate .btn { width: 100%; }
.error, .gate .error {
  margin-top: 16px; padding: 10px 12px; border-radius: var(--radius);
  border: 1px solid color-mix(in srgb, var(--danger) 40%, transparent);
  background: color-mix(in srgb, var(--danger) 8%, transparent);
  color: var(--danger); font-size: 0.9rem;
}

/* ---------- Demo page ---------- */

.demo-hero { padding: clamp(48px, 8vw, 104px) 0 clamp(36px, 5vw, 56px); }
.demo-hero h1 { max-width: 17ch; margin: 18px 0 22px; }

.toc {
  display: flex; flex-wrap: wrap; gap: 6px 22px; margin: 36px 0 0; padding: 0; list-style: none;
  font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.04em; text-transform: uppercase;
}
.toc a { text-decoration: none; color: var(--muted); }
.toc a:hover { color: var(--ink); }
.toc span { color: var(--accent-ink); margin-right: 6px; }

.sec { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 24px clamp(32px, 5vw, 72px); padding: clamp(56px, 8vw, 96px) 0; border-top: 1px solid var(--line); scroll-margin-top: 16px; }
.sec-label { font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); padding-top: 6px; }
.sec-label b { color: var(--accent-ink); font-weight: 500; margin-right: 8px; }
.sec-body > h2 { max-width: 22ch; }
.sec-body > h2 + p, .sec-body > h2 + .prose { margin-top: 20px; }
.prose { display: grid; gap: 16px; max-width: 66ch; color: var(--ink-2); }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); margin: 40px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.stats li { padding: 22px 22px 0 0; }
.stats li + li { padding-left: 22px; border-left: 1px solid var(--line); }
.stats .num { display: block; font-size: clamp(1.6rem, 1.2rem + 1.4vw, 2.3rem); font-weight: 600; letter-spacing: -0.03em; line-height: 1.1; }
.stats .cap { display: block; margin-top: 8px; font-size: 0.92rem; color: var(--muted); }

.steps { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; margin: 40px 0 0; padding: 0; list-style: none; counter-reset: step; border-top: 1px solid var(--line); }
.steps li { counter-increment: step; padding: 26px 26px 28px 0; border-bottom: 1px solid var(--line); }
.steps li:nth-child(even) { padding-left: 26px; padding-right: 0; border-left: 1px solid var(--line); }
.steps li::before { content: counter(step, decimal-leading-zero); display: block; font-family: var(--font-mono); font-size: 0.8rem; color: var(--accent-ink); margin-bottom: 12px; }
.steps p { margin-top: 8px; color: var(--ink-2); font-size: 0.97rem; }

.shots { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; margin-top: 36px; }
.shots figure, .video { margin: 0; }
.shots figcaption, .video figcaption { margin-top: 10px; font-size: 0.9rem; color: var(--muted); }
.shots img, .video video { width: 100%; height: auto; border-radius: 8px; border: 1px solid var(--line); background: var(--surface); }
.video { margin-top: 44px; }

/* Placeholder frames — replace with real media */
.ph-frame {
  display: grid; place-content: center; gap: 6px; text-align: center;
  aspect-ratio: 16 / 10; padding: 20px;
  border: 1.5px dashed var(--line-strong); border-radius: 8px;
  background:
    linear-gradient(var(--surface), var(--surface)) padding-box,
    var(--surface);
  color: var(--muted); font-size: 0.9rem;
}
.video .ph-frame { aspect-ratio: 16 / 9; }
.ph-frame strong { color: var(--ink-2); font-weight: 550; }
.ph-frame code { font-size: 0.78rem; }
.play { width: 44px; height: 44px; margin: 0 auto 6px; border-radius: 50%; border: 1.5px solid var(--line-strong); display: grid; place-items: center; }
.play::before { content: ""; border-left: 12px solid var(--muted); border-top: 7px solid transparent; border-bottom: 7px solid transparent; margin-left: 3px; }

/* Inline text placeholders */
.ph {
  font-family: var(--font-mono); font-size: 0.86em; font-style: normal;
  color: var(--accent-ink); background: var(--accent-soft);
  border-radius: 3px; padding: 0.05em 0.3em;
}

.attrs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; margin: 36px 0 0; border-top: 1px solid var(--line); }
.attrs div { padding: 20px 24px 22px 0; border-bottom: 1px solid var(--line); }
.attrs div:nth-child(even) { padding-left: 24px; padding-right: 0; border-left: 1px solid var(--line); }
.attrs dt { font-weight: 600; }
.attrs dd { margin: 6px 0 0; color: var(--ink-2); font-size: 0.95rem; }

.compare { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-top: 36px; }
.compare figure { margin: 0; }
.lane-diagram { border: 1px solid var(--line); border-radius: 8px; background: var(--surface); padding: 18px; }
.lane-diagram svg { width: 100%; height: auto; }
.lane-diagram .edge { stroke: var(--line-strong); }
.lane-diagram .stripe { stroke: var(--line-strong); stroke-dasharray: 10 10; }
.lane-diagram .center { stroke: var(--muted); }
.lane-diagram .lane-fill { fill: var(--surface-2); }
.lane-diagram .hl { fill: var(--accent-soft); stroke: var(--accent); }
.lane-diagram text { fill: var(--muted); font-family: var(--font-mono); font-size: 11px; }

.team { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-top: 36px; }
.team .card h3 { margin-bottom: 4px; }
.team .card .role { font-size: 0.9rem; color: var(--muted); }
.team .card p:last-child { margin-top: 14px; color: var(--ink-2); font-size: 0.97rem; }

.contact-block { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; margin-top: 28px; }
.contact-block a.email { font-size: clamp(1.2rem, 1rem + 1vw, 1.6rem); font-weight: 550; letter-spacing: -0.02em; }

.confidential { font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.04em; color: var(--muted); }

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .split { grid-template-columns: 1fr; }
  .sec { grid-template-columns: 1fr; gap: 14px; }
  .sec-label { padding-top: 0; }
}

@media (max-width: 680px) {
  body { font-size: 16px; }
  .glance, .stats { grid-template-columns: 1fr; }
  .glance li, .glance li + li { padding: 20px 0; border-left: 0; }
  .glance li + li { border-top: 1px solid var(--line); }
  .stats li, .stats li + li { padding: 18px 0; border-left: 0; }
  .stats li + li { border-top: 1px solid var(--line); }
  .steps, .attrs, .shots, .compare, .team { grid-template-columns: 1fr; }
  .steps li, .steps li:nth-child(even) { padding: 22px 0; border-left: 0; }
  .attrs div, .attrs div:nth-child(even) { padding: 18px 0; border-left: 0; }
  .form .row { grid-template-columns: 1fr; }
  .site-header nav { gap: 16px; }
  .site-header nav .hide-sm { display: none; }
  .actions .btn { flex: 1 1 auto; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}

@media print {
  .site-header nav, .toc, .actions { display: none; }
  body { background: #fff; color: #000; }
}

/* Small utilities used by the pages (no inline styles — CSP friendly) */
.mk { fill: var(--accent); stroke: var(--accent); }
.lane-diagram .dot { fill: var(--muted); }
.prose.spaced { margin-top: 32px; }
.compare figcaption { margin-top: 10px; font-size: 0.9rem; color: var(--muted); }

/* Agent callout (demo, How it works) */
.agent { display: flex; flex-wrap: wrap; gap: 20px 40px; align-items: flex-start; margin-top: 36px; }
.agent > div { flex: 1 1 280px; min-width: 0; }
.agent .agent-tag { color: var(--accent-ink); }
.agent h3 { margin-top: 12px; font-size: 1.35rem; }
.agent p:not(.status) { margin-top: 10px; color: var(--ink-2); font-size: 0.97rem; }
.agent .prompt { flex: 1 1 320px; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 18px 20px; font-family: var(--font-mono); font-size: 0.86rem; line-height: 1.6; color: var(--ink-2); }
.agent .prompt span { color: var(--muted); }

/* Work zone animation (landing) */
.road-anim {
  height: 160px; overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.road-anim svg { display: block; width: 100%; height: 100%; }
.road-anim .rl { stroke: var(--line-strong); stroke-width: 1; fill: none; }
.road-anim .zone { fill: var(--accent); fill-opacity: 0.08; }
.road-anim .dev, .road-anim .slow { fill: var(--accent); }
.road-anim .car { fill: var(--ink); fill-opacity: 0.85; }
.road-anim .stop { fill: #c8321e; }
@media (prefers-color-scheme: dark) { .road-anim .stop { fill: #e0533f; } }
@media (max-width: 680px) {
  .road-anim {
    height: 88px;
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 4%, #000 96%, transparent);
            mask-image: linear-gradient(90deg, transparent, #000 4%, #000 96%, transparent);
  }
}