/* ERT.AI.SMART theme — design tokens follow DESIGN.md (ERT Website Design Document). */

:root {
  /* Brand (sampled from the ER crest) */
  --brand-red: #e31e26;
  --brand-red-strong: #b8161d;
  --brand-grey: #a7a9ac;
  --ink: #2a2c30;
  --muted: #5f6368;
  --surface: #fafafa;
  --surface-raised: #ffffff;
  --surface-steel: #eef0f2;
  --line: rgb(42 44 48 / 0.12);
  --available: #1e8e5a;
  --planned: var(--brand-grey);
  --error: #a3121a;

  /* Type */
  --font-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Source Sans 3", "Segoe UI", Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --step--1: 0.875rem;
  --step-0: clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
  --step-1: clamp(1.25rem, 1.15rem + 0.4vw, 1.5rem);
  --step-2: clamp(1.5rem, 1.3rem + 0.8vw, 1.95rem);
  --step-3: clamp(1.9rem, 1.55rem + 1.4vw, 2.45rem);
  --step-4: clamp(2.3rem, 1.8rem + 2.2vw, 3.05rem);
  --step-5: clamp(2.7rem, 2rem + 3vw, 3.8rem);

  /* Space (4px base) */
  --s1: 4px; --s2: 8px; --s3: 12px; --s4: 16px; --s5: 24px; --s6: 32px;
  --s7: 48px; --s8: 64px; --s9: 96px; --s10: 128px;
  --gutter: clamp(16px, 4vw, 40px);
  --maxw: 1200px;

  /* Shape and elevation */
  --r-control: 6px;
  --r-panel: 12px;
  --shadow: 0 0 0 1px rgb(0 0 0 / 0.06), 0 1px 2px -1px rgb(0 0 0 / 0.06), 0 2px 4px rgb(0 0 0 / 0.04);
  --shadow-hover: 0 0 0 1px rgb(0 0 0 / 0.08), 0 1px 2px -1px rgb(0 0 0 / 0.08), 0 4px 10px rgb(0 0 0 / 0.08);

  /* Motion */
  --duration-instant: 100ms;
  --duration-quick: 160ms;
  --duration-base: 240ms;
  --duration-slow: 380ms;
  --duration-reveal: 800ms;
  --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --stagger: 80ms;
}

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

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; } /* Component display rules must never override the hidden attribute. */
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
img.photo { outline: 1px solid rgb(0 0 0 / 0.1); outline-offset: -1px; }
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.12; letter-spacing: -0.015em; margin: 0 0 var(--s4); text-wrap: balance; }
h1 { font-size: var(--step-5); font-weight: 750; }
h2 { font-size: var(--step-4); font-weight: 700; }
h3 { font-size: var(--step-2); font-weight: 650; }
h4 { font-size: var(--step-1); font-weight: 650; }
p { margin: 0 0 var(--s4); text-wrap: pretty; max-width: 68ch; }
a { color: var(--brand-red-strong); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
:focus-visible { outline: 3px solid var(--brand-red); outline-offset: 2px; border-radius: 2px; }
.num, .kpi-value, .mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.skip-link { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 12px; z-index: 100; }
.skip-link:focus { left: 8px; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: var(--s9) 0; }
.section--tight { padding: var(--s8) 0; }
.section--steel { background: var(--surface-steel); }
.section--ink { background: var(--ink); color: #f2f3f4; }
.section--ink p, .section--ink .lede { color: #c9ccd0; }
.section--ink a { color: #fff; }
.lede { font-size: var(--step-1); color: var(--muted); line-height: 1.5; max-width: 60ch; }
.kicker { font-family: var(--font-mono); font-size: var(--step--1); color: var(--brand-red-strong); margin: 0 0 var(--s3); }
.section--ink .kicker { color: #ff8a8f; }
.section-head { max-width: 760px; margin-bottom: var(--s7); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  min-height: 48px; padding: 12px 22px;
  border-radius: var(--r-control); border: 0;
  font: 600 1rem/1 var(--font-body); text-decoration: none; cursor: pointer;
  transition: background-color var(--duration-quick) var(--ease-out), color var(--duration-quick) var(--ease-out), box-shadow var(--duration-quick) var(--ease-out), transform var(--duration-instant) var(--ease-out);
}
.btn:active { transform: scale(0.96); }
.btn--primary { background: var(--brand-red); color: #fff; }
.btn--primary:hover { background: var(--brand-red-strong); color: #fff; }
.btn--secondary { background: var(--surface-raised); color: var(--ink); box-shadow: var(--shadow); }
.btn--secondary:hover { box-shadow: var(--shadow-hover); color: var(--ink); }
.btn--ghost { background: transparent; color: inherit; padding-left: 4px; padding-right: 4px; text-decoration: underline; text-underline-offset: 4px; }
.btn--light { background: #fff; color: var(--ink); }
.btn--light:hover { background: var(--surface-steel); color: var(--ink); }
.btn svg { width: 18px; height: 18px; flex: none; }
.btn--icon-right { padding-right: 18px; }
.btn-row { display: flex; flex-wrap: wrap; gap: var(--s3); align-items: center; }

/* ---------- Header ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgb(250 250 250 / 0.94); backdrop-filter: saturate(1.4) blur(8px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; gap: var(--s5); min-height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); flex: none; }
.brand img { width: 46px; height: auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1; }
.brand-name { font: 700 1.25rem/1 var(--font-display); letter-spacing: 0.04em; color: #8c8e91; }
.brand-name b { color: var(--brand-red); font-weight: 800; }
.brand-tag { font: 600 0.62rem/1.4 var(--font-display); letter-spacing: 0.08em; color: var(--brand-red-strong); text-transform: uppercase; margin-top: 3px; }
.nav { margin-left: auto; display: flex; align-items: center; gap: var(--s2); }
.nav > ul { list-style: none; display: flex; gap: 2px; margin: 0; padding: 0; }
.nav a.nav-link, .nav button.nav-link {
  display: inline-flex; align-items: center; gap: 6px; min-height: 44px; padding: 0 12px;
  font: 600 0.98rem/1 var(--font-body); color: var(--ink); text-decoration: none; background: none; border: 0; cursor: pointer; border-radius: var(--r-control);
  transition: background-color var(--duration-quick) var(--ease-out);
}
.nav a.nav-link:hover, .nav button.nav-link:hover, .nav .is-current > .nav-link { background: var(--surface-steel); }
.nav .has-menu { position: relative; }
.nav .has-menu svg { width: 14px; height: 14px; transition: transform var(--duration-base) var(--ease-out); }
.nav .has-menu.is-open svg { transform: rotate(180deg); }
.menu-panel {
  position: absolute; top: calc(100% + 8px); left: 0; min-width: 300px; padding: var(--s2);
  background: var(--surface-raised); border-radius: var(--r-panel); box-shadow: var(--shadow-hover);
  opacity: 0; transform: translateY(-6px); pointer-events: none; visibility: hidden;
  transition: opacity var(--duration-base) var(--ease-out), transform var(--duration-base) var(--ease-out), visibility 0s linear var(--duration-base);
}
.has-menu.is-open .menu-panel { opacity: 1; transform: none; pointer-events: auto; visibility: visible; transition-delay: 0s; }
.menu-panel a { display: block; padding: 10px 12px; border-radius: var(--r-control); text-decoration: none; color: var(--ink); }
.menu-panel a:hover { background: var(--surface-steel); }
.menu-panel a span { display: block; font-size: var(--step--1); color: var(--muted); }
.nav-cta { margin-left: var(--s3); }
.nav-toggle { display: none; margin-left: auto; width: 44px; height: 44px; border: 0; background: none; border-radius: var(--r-control); cursor: pointer; }
.nav-toggle svg { width: 24px; height: 24px; }

@media (max-width: 1080px) {
  .nav-toggle { display: inline-grid; place-items: center; }
  .nav { position: fixed; inset: 72px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0; padding: var(--s4) var(--gutter) var(--s6);
    background: var(--surface-raised); box-shadow: var(--shadow-hover); max-height: calc(100vh - 72px); overflow: auto;
    opacity: 0; transform: translateY(-8px); visibility: hidden; transition: opacity var(--duration-base) var(--ease-out), transform var(--duration-base) var(--ease-out), visibility 0s linear var(--duration-base); }
  .nav.is-open { opacity: 1; transform: none; visibility: visible; transition-delay: 0s; }
  .nav > ul { flex-direction: column; }
  .menu-panel { position: static; box-shadow: none; padding: 0 0 0 var(--s4); min-width: 0; opacity: 1; transform: none; visibility: visible; pointer-events: auto; display: none; }
  .has-menu.is-open .menu-panel { display: block; }
  .nav-cta { margin: var(--s4) 0 0; justify-content: center; }
}

/* ---------- Promo bar ---------- */
.promo-bar { background: var(--ink); color: #fff; font-size: 0.95rem; }
.promo-bar .wrap { display: flex; align-items: center; justify-content: center; gap: var(--s3); min-height: 44px; flex-wrap: wrap; padding-top: 6px; padding-bottom: 6px; text-align: center; }
.promo-bar a { color: #fff; font-weight: 600; }
.promo-bar .num { color: #ff9ca0; }
@media (max-width: 600px) { .promo-bar { font-size: 0.85rem; } .promo-bar .wrap { gap: 4px 10px; min-height: 0; padding-top: 8px; padding-bottom: 8px; } }

/* ---------- Hero ---------- */
.hero { position: relative; padding: var(--s9) 0 var(--s8); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: var(--s7); align-items: center; }
.hero h1 { max-width: 15ch; }
.hero h1 .line { display: block; }
.hero h1 em { font-style: normal; color: var(--brand-red); }
.hero .lede { margin-bottom: var(--s6); }
.hero-proof { display: flex; gap: var(--s6); margin-top: var(--s7); flex-wrap: wrap; }
.hero-proof div { min-width: 120px; }
.hero-proof .kpi-value { font-size: var(--step-3); font-weight: 600; color: var(--ink); display: block; line-height: 1.1; }
.hero-proof small { color: var(--muted); font-size: var(--step--1); }
@media (max-width: 960px) { .hero-grid { grid-template-columns: 1fr; } .hero { padding-top: var(--s7); } }

/* ---------- Agent console (hero visual + demo screen) ---------- */
.console {
  background: #1e2024; color: #e7e9ec; border-radius: var(--r-panel); box-shadow: 0 0 0 1px rgb(0 0 0 / 0.2), 0 20px 50px -20px rgb(0 0 0 / 0.45);
  overflow: hidden; font-size: 0.92rem;
}
.console-bar { display: flex; align-items: center; gap: 10px; padding: 10px 14px; background: #16181b; border-bottom: 1px solid rgb(255 255 255 / 0.06); }
.console-bar .dot { width: 9px; height: 9px; border-radius: 50%; background: #3a3d42; }
.console-bar .title { font-family: var(--font-mono); font-size: 0.78rem; color: #9ea3aa; margin-left: 6px; }
.console-body { padding: 18px; display: grid; gap: 14px; }
.console-row { display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; padding: 12px 14px; background: rgb(255 255 255 / 0.04); border-radius: 8px; }
.console-row .who { width: 34px; height: 34px; border-radius: 8px; display: grid; place-items: center; font: 700 0.85rem/1 var(--font-display); background: rgb(227 30 38 / 0.18); color: #ff8a8f; }
.console-row .what { min-width: 0; }
.console-row .what b { display: block; font-weight: 600; color: #fff; }
.console-row .what span { color: #9ea3aa; font-size: 0.84rem; }
.status { font: 600 0.72rem/1 var(--font-mono); padding: 6px 8px; border-radius: 6px; white-space: nowrap; }
.status--ok { background: rgb(30 142 90 / 0.2); color: #6fd3a3; }
.status--warn { background: rgb(227 160 30 / 0.18); color: #f0c46b; }
.status--act { background: rgb(227 30 38 / 0.2); color: #ff8a8f; }
.console-kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.console-kpis div { background: rgb(255 255 255 / 0.04); border-radius: 8px; padding: 12px; }
.console-kpis .kpi-value { font-size: 1.35rem; color: #fff; display: block; }
.console-kpis small { color: #9ea3aa; font-size: 0.78rem; }

/* ---------- Generic layouts ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s8); align-items: center; }
.split--wide-text { grid-template-columns: 1.1fr 0.9fr; }
.split img.photo { border-radius: var(--r-panel); width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
@media (max-width: 900px) { .split, .split--wide-text { grid-template-columns: 1fr; gap: var(--s6); } }

.checklist { list-style: none; padding: 0; margin: var(--s5) 0; display: grid; gap: var(--s3); }
.checklist li { display: grid; grid-template-columns: 22px 1fr; gap: 10px; }
.checklist li::before { content: ""; width: 18px; height: 18px; margin-top: 4px; border-radius: 4px; background: var(--brand-red) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='white'%3E%3Cpath d='M7.6 13.2 4.4 10l-1.1 1.1 4.3 4.3 9-9-1.1-1.1z'/%3E%3C/svg%3E") center/14px no-repeat; }

/* Agent workforce */
.agents { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s4); }
.agent { background: var(--surface-raised); border-radius: var(--r-panel); padding: var(--s5); box-shadow: var(--shadow); transition: box-shadow var(--duration-quick) var(--ease-out); }
.agent:hover { box-shadow: var(--shadow-hover); }
.agent-head { display: flex; align-items: center; gap: 12px; margin-bottom: var(--s3); }
.agent-badge { width: 44px; height: 44px; border-radius: 10px; display: grid; place-items: center; background: var(--ink); color: #fff; font: 700 1.05rem/1 var(--font-display); }
.agent h3 { font-size: 1.15rem; margin: 0; }
.agent .role { font-size: var(--step--1); color: var(--brand-red-strong); font-weight: 600; }
.agent p { font-size: 0.98rem; color: var(--muted); margin: 0; }
.agent--feature { grid-column: span 2; background: var(--ink); color: #fff; }
.agent--feature p { color: #c9ccd0; }
.agent--feature .agent-badge { background: var(--brand-red); }
.agent--feature .role { color: #ff9ca0; }
@media (max-width: 1000px) { .agents { grid-template-columns: repeat(2, 1fr); } .agent--feature { grid-column: auto; } }
@media (max-width: 560px) { .agents { grid-template-columns: 1fr; } .agent--feature { grid-column: auto; } }

/* Pinned platform story */
.story { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: var(--s8); }
.story-steps { display: grid; gap: var(--s8); padding: var(--s6) 0; }
.story-step { opacity: 0.35; transition: opacity var(--duration-slow) var(--ease-out); }
.story-step.is-active { opacity: 1; }
.story-step .num { color: var(--brand-red-strong); font-size: var(--step--1); }
.story-visual { position: sticky; top: 104px; align-self: start; }
.layer-stack { display: grid; gap: 10px; }
.layer { border-radius: var(--r-panel); padding: 18px 20px; background: var(--surface-raised); box-shadow: var(--shadow); display: grid; grid-template-columns: 1fr auto; gap: 6px 12px; align-items: center;
  transition: background-color var(--duration-slow) var(--ease-out), color var(--duration-slow) var(--ease-out), transform var(--duration-slow) var(--ease-out); }
.layer b { font-family: var(--font-display); font-size: 1.08rem; }
.layer span { grid-column: 1 / -1; color: var(--muted); font-size: 0.95rem; }
.layer.is-active { background: var(--ink); color: #fff; transform: translateX(-6px); }
.layer.is-active span { color: #c9ccd0; }
.layer .chips { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.chip { font: 600 0.72rem/1 var(--font-mono); padding: 6px 8px; border-radius: 6px; background: var(--surface-steel); color: var(--ink); }
.layer.is-active .chip { background: rgb(255 255 255 / 0.1); color: #fff; }
@media (max-width: 1023px) { .story { grid-template-columns: 1fr; } .story-visual { position: static; } .story-step { opacity: 1; } .story-steps { gap: var(--s6); padding: 0; } }

/* Industries */
.industry-tabs { display: flex; gap: var(--s2); flex-wrap: wrap; margin-bottom: var(--s6); position: relative; }
.industry-tabs button { min-height: 44px; padding: 0 16px; border-radius: 999px; border: 0; background: var(--surface-raised); box-shadow: var(--shadow); font: 600 0.95rem/1 var(--font-body); color: var(--ink); cursor: pointer;
  transition: background-color var(--duration-base) var(--ease-out), color var(--duration-base) var(--ease-out); }
.industry-tabs button[aria-selected="true"] { background: var(--ink); color: #fff; }
.industry-panel { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s7); align-items: center; }
.industry-panel[hidden] { display: none; }
.industry-panel img.photo { border-radius: var(--r-panel); aspect-ratio: 16 / 10; object-fit: cover; width: 100%; }
@media (max-width: 900px) { .industry-panel { grid-template-columns: 1fr; } }

/* Feature list (not a card grid) */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 var(--s8); border-top: 1px solid var(--line); }
.feature-list > div { padding: var(--s5) 0; border-bottom: 1px solid var(--line); }
.feature-list h3 { font-size: 1.2rem; margin-bottom: 6px; }
.feature-list p { color: var(--muted); margin: 0; }
@media (max-width: 760px) { .feature-list { grid-template-columns: 1fr; } }

/* Steps / how we implement */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s5); list-style: none; padding: 0; margin: 0; }
.steps li { counter-increment: step; border-top: 2px solid var(--ink); padding-top: var(--s4); }
.steps li::before { content: "0" counter(step); font-family: var(--font-mono); color: var(--brand-red-strong); font-size: var(--step--1); display: block; margin-bottom: 6px; }
.steps h3 { font-size: 1.15rem; margin-bottom: 6px; }
.steps p { color: var(--muted); font-size: 0.98rem; margin: 0; }
.section--ink .steps li { border-color: #fff; }
.section--ink .steps p { color: #c9ccd0; }
@media (max-width: 900px) { .steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }

/* Offers ladder */
.offers { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s4); }
.offer { background: var(--surface-raised); border-radius: var(--r-panel); padding: var(--s6); box-shadow: var(--shadow); display: flex; flex-direction: column; gap: var(--s3); }
.offer h3 { font-size: 1.35rem; margin: 0; }
.offer .price { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-size: var(--step-2); font-weight: 600; }
.offer .price small { font-size: 0.9rem; color: var(--muted); font-family: var(--font-body); font-weight: 400; }
.offer p { color: var(--muted); margin: 0; }
.offer .btn { margin-top: auto; align-self: flex-start; }
.offer--featured { background: var(--ink); color: #fff; }
.offer--featured p, .offer--featured .price small { color: #c9ccd0; }
.offer .tag { font: 600 0.75rem/1 var(--font-mono); color: var(--brand-red-strong); }
.offer--featured .tag { color: #ff9ca0; }
@media (max-width: 900px) { .offers { grid-template-columns: 1fr; } }

/* CTA band */
.cta-band { background: var(--ink); color: #fff; border-radius: var(--r-panel); padding: var(--s8) var(--s7); display: grid; grid-template-columns: 1.3fr auto; gap: var(--s6); align-items: center; }
.cta-band p { color: #c9ccd0; margin: 0; }
.cta-band h2 { font-size: var(--step-3); }
@media (max-width: 800px) { .cta-band { grid-template-columns: 1fr; padding: var(--s7) var(--s5); } }

/* Page hero (interior) */
.page-hero { padding: var(--s8) 0 var(--s7); border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: var(--step-4); max-width: 22ch; }
.breadcrumb { font-family: var(--font-mono); font-size: var(--step--1); color: var(--muted); margin-bottom: var(--s4); }
.breadcrumb a { color: var(--muted); }

/* Resources list */
.resource-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.resource-list li { display: grid; grid-template-columns: 140px 1fr auto; gap: var(--s5); padding: var(--s5) 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.resource-list .meta { font-family: var(--font-mono); font-size: var(--step--1); color: var(--muted); }
.resource-list a { color: var(--ink); text-decoration: none; font: 650 1.15rem/1.3 var(--font-display); }
.resource-list a:hover { color: var(--brand-red-strong); }
@media (max-width: 700px) { .resource-list li { grid-template-columns: 1fr; gap: 4px; } }

/* Article */
.article { max-width: 720px; margin: 0 auto; }
.article h2 { font-size: var(--step-3); margin-top: var(--s7); }
.article h3 { margin-top: var(--s6); }
.article img { border-radius: var(--r-panel); }
.article ul, .article ol { padding-left: 1.2em; }
.article li { margin-bottom: 6px; }

/* ---------- Forms ---------- */
.form { display: grid; gap: var(--s4); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s4); }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }
.field { display: grid; gap: 6px; }
.field label { font-weight: 600; font-size: 0.95rem; }
.field .hint { font-size: var(--step--1); color: var(--muted); }
.field input, .field select, .field textarea {
  width: 100%; min-height: 48px; padding: 12px 14px; border-radius: var(--r-control); border: 0; background: var(--surface-raised);
  box-shadow: var(--shadow); font: 400 1rem/1.4 var(--font-body); color: var(--ink);
  transition: box-shadow var(--duration-quick) var(--ease-out);
}
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; box-shadow: 0 0 0 2px var(--ink); }
.field.is-invalid input, .field.is-invalid select, .field.is-invalid textarea { box-shadow: 0 0 0 2px var(--error); animation: shake 320ms var(--ease-out); }
.field .error { display: none; color: var(--error); font-size: 0.9rem; font-weight: 600; }
.field.is-invalid .error { display: flex; gap: 6px; align-items: center; }
.field.is-invalid .error::before { content: "!"; display: inline-grid; place-items: center; width: 16px; height: 16px; border-radius: 50%; background: var(--error); color: #fff; font-size: 0.7rem; }
.consent { display: grid; grid-template-columns: 22px 1fr; gap: 10px; font-size: 0.95rem; color: var(--muted); align-items: start; }
.consent input { width: 20px; height: 20px; margin-top: 3px; accent-color: var(--brand-red); }
.hp { position: absolute; left: -9999px; }
.form-status { padding: var(--s4); border-radius: var(--r-control); background: var(--surface-steel); display: none; }
.form-status.is-visible { display: block; }
.form-status.is-error { background: #fbe9ea; color: var(--error); }
.form-panel { background: var(--surface-raised); border-radius: var(--r-panel); padding: var(--s6); box-shadow: var(--shadow); }
.extra-fields { display: grid; gap: var(--s4); }
.extra-fields[hidden] { display: none; }
@keyframes shake { 0%, 100% { transform: translateX(0); } 25% { transform: translateX(-4px); } 75% { transform: translateX(4px); } }

/* Path picker */
.paths { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s4); }
.path { position: relative; background: var(--surface-raised); border-radius: var(--r-panel); padding: var(--s6); box-shadow: var(--shadow); display: flex; flex-direction: column; gap: var(--s3);
  transition: box-shadow var(--duration-quick) var(--ease-out); }
.path:hover { box-shadow: var(--shadow-hover); }
.path .letter { font: 600 0.8rem/1 var(--font-mono); color: var(--brand-red-strong); }
.path h3 { margin: 0; font-size: 1.4rem; }
.path p { color: var(--muted); margin: 0; }
.path ul { margin: 0; padding-left: 1.1em; color: var(--muted); font-size: 0.97rem; }
.path .btn { margin-top: auto; align-self: flex-start; }
@media (max-width: 960px) { .paths { grid-template-columns: 1fr; } }

/* ---------- Demo player ---------- */
.demo-shell { display: grid; grid-template-columns: 1.45fr 1fr; gap: var(--s5); align-items: start; }
@media (max-width: 1000px) { .demo-shell { grid-template-columns: 1fr; } }
.demo-progress { display: grid; grid-template-columns: repeat(6, 1fr); gap: 6px; margin-bottom: var(--s4); }
.demo-progress span { height: 4px; border-radius: 2px; background: var(--line); overflow: hidden; position: relative; }
.demo-progress span::after { content: ""; position: absolute; inset: 0; background: var(--brand-red); transform: scaleX(0); transform-origin: left; transition: transform var(--duration-slow) var(--ease-out); }
.demo-progress span.is-done::after { transform: scaleX(1); }
.demo-screen { min-height: 460px; }
.demo-screen .console-body { min-height: 420px; align-content: start; }
.sample-flag { font: 600 0.7rem/1 var(--font-mono); color: #f0c46b; margin-left: auto; }
.ns-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.ns-table th { text-align: left; color: #9ea3aa; font-weight: 600; padding: 8px 10px; border-bottom: 1px solid rgb(255 255 255 / 0.08); font-size: 0.78rem; }
.ns-table td { padding: 9px 10px; border-bottom: 1px solid rgb(255 255 255 / 0.05); font-variant-numeric: tabular-nums; }
.ns-table td.num { font-family: var(--font-mono); }
.ns-table tr.is-flagged td { background: rgb(227 30 38 / 0.12); }
.ns-table tr.is-good td { background: rgb(30 142 90 / 0.12); }
.demo-msg { display: grid; grid-template-columns: 34px 1fr; gap: 10px; background: rgb(255 255 255 / 0.05); border-radius: 8px; padding: 12px; }
.demo-msg .who { width: 34px; height: 34px; border-radius: 8px; display: grid; place-items: center; background: var(--brand-red); color: #fff; font: 700 0.85rem/1 var(--font-display); }
.demo-msg p { margin: 0; color: #e7e9ec; font-size: 0.93rem; }
.demo-msg b { color: #fff; }
.demo-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.demo-actions .btn { min-height: 40px; padding: 8px 16px; font-size: 0.92rem; }
.hotspot { box-shadow: 0 0 0 2px var(--brand-red), 0 0 0 6px rgb(227 30 38 / 0.25); }
.demo-side { display: grid; gap: var(--s4); }
.demo-narration { background: var(--surface-raised); border-radius: var(--r-panel); padding: var(--s5); box-shadow: var(--shadow); }
.demo-narration .step-label { font: 600 var(--step--1)/1 var(--font-mono); color: var(--brand-red-strong); margin-bottom: var(--s3); display: block; }
.demo-narration h3 { font-size: 1.35rem; }
.demo-narration p { color: var(--muted); }
.demo-controls { display: flex; gap: var(--s2); flex-wrap: wrap; align-items: center; }
.demo-controls .btn { min-height: 44px; }
.demo-endcard { background: var(--ink); color: #fff; border-radius: var(--r-panel); padding: var(--s6); }
.demo-endcard p { color: #c9ccd0; }
.demo-endcard a:not(.btn) { color: #fff; }
.demo-endcard .form-status { background: rgb(255 255 255 / 0.08); color: #fff; }
.demo-endcard .form-status.is-error { background: #fbe9ea; color: var(--error); }
.demo-endcard .field.is-invalid .error { color: #ffb3b6; }
.demo-endcard[hidden] { display: none; }
.kpi-tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.kpi-tiles div { background: rgb(255 255 255 / 0.05); border-radius: 8px; padding: 14px; }
.kpi-tiles .kpi-value { font-size: 1.6rem; color: #fff; display: block; }
.kpi-tiles small { color: #9ea3aa; }
.track-switch { display: inline-flex; background: var(--surface-steel); padding: 4px; border-radius: 999px; gap: 4px; margin-bottom: var(--s5); }
.track-switch a { padding: 8px 16px; border-radius: 999px; text-decoration: none; color: var(--ink); font-weight: 600; font-size: 0.95rem; }
.track-switch a[aria-current="page"] { background: var(--surface-raised); box-shadow: var(--shadow); }

/* ---------- Contact details ---------- */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: var(--s8); }
.contact-list { list-style: none; padding: 0; margin: var(--s5) 0; display: grid; gap: var(--s4); }
.contact-list b { display: block; font-family: var(--font-mono); font-size: var(--step--1); color: var(--muted); font-weight: 500; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }

/* ---------- Footer ---------- */
.site-footer { background: #1e2024; color: #c9ccd0; padding: var(--s8) 0 var(--s6); margin-top: var(--s9); font-size: 0.97rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: var(--s6); }
.site-footer h2 { font-size: 0.85rem; font-family: var(--font-mono); font-weight: 500; color: #9ea3aa; letter-spacing: 0.02em; margin-bottom: var(--s4); }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.site-footer a { color: #fff; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.site-footer .brand-name { color: #c9ccd0; }
.footer-base { display: flex; justify-content: space-between; gap: var(--s4); flex-wrap: wrap; margin-top: var(--s7); padding-top: var(--s5); border-top: 1px solid rgb(255 255 255 / 0.1); font-size: 0.88rem; color: #9ea3aa; }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }

/* ---------- Markus ---------- */
.markus-launcher {
  position: fixed; right: 20px; bottom: 20px; z-index: 60; width: 60px; height: 60px; border-radius: 50%; border: 0; cursor: pointer;
  background: var(--surface-raised); box-shadow: 0 0 0 1px rgb(0 0 0 / 0.08), 0 10px 24px -8px rgb(0 0 0 / 0.35); display: grid; place-items: center;
  transition: transform var(--duration-instant) var(--ease-out), box-shadow var(--duration-quick) var(--ease-out);
}
.markus-launcher:active { transform: scale(0.96); }
.markus-launcher img { width: 40px; }
.markus-badge { position: absolute; top: -2px; right: -2px; min-width: 20px; height: 20px; padding: 0 5px; border-radius: 10px; background: var(--brand-red); color: #fff; font: 700 0.72rem/20px var(--font-body);
  opacity: 0; transform: scale(0.6); transition: opacity var(--duration-base) var(--ease-out), transform var(--duration-base) var(--ease-out); }
.markus-badge.is-visible { opacity: 1; transform: scale(1); }
.markus-panel {
  position: fixed; right: 20px; bottom: 92px; z-index: 61; width: 400px; height: min(640px, calc(100vh - 120px));
  background: var(--surface-raised); border-radius: 16px; box-shadow: 0 0 0 1px rgb(0 0 0 / 0.06), 0 24px 60px -20px rgb(0 0 0 / 0.45);
  display: flex; flex-direction: column; overflow: hidden;
  opacity: 0; transform: translateY(12px) scale(0.98); transform-origin: bottom right; visibility: hidden; filter: blur(4px);
  transition: opacity var(--duration-slow) var(--ease-out), transform var(--duration-slow) var(--ease-out), filter var(--duration-slow) var(--ease-out), visibility 0s linear var(--duration-slow);
}
.markus-panel.is-open { opacity: 1; transform: none; visibility: visible; filter: none; transition-delay: 0s; }
.markus-panel.is-inline { position: static; width: 100%; height: 560px; opacity: 1; transform: none; visibility: visible; filter: none; box-shadow: var(--shadow); }
@media (max-width: 560px) { .markus-panel:not(.is-inline) { inset: 0; width: 100%; height: 100%; border-radius: 0; } }
.markus-head { display: flex; align-items: center; gap: 12px; padding: 14px 16px; border-bottom: 1px solid var(--line); }
.markus-head img { width: 38px; }
.markus-head b { display: block; font-family: var(--font-display); }
.markus-head small { color: var(--muted); font-size: 0.82rem; }
.markus-head .human { margin-left: auto; font-size: 0.85rem; white-space: nowrap; }
@media (max-width: 400px) { .markus-head small { display: none; } }
.markus-close { width: 40px; height: 40px; border: 0; background: none; border-radius: 8px; cursor: pointer; display: grid; place-items: center; }
.markus-close:hover { background: var(--surface-steel); }
.markus-log { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 10px; scroll-behavior: smooth; }
.msg { max-width: 86%; padding: 10px 14px; border-radius: 14px; font-size: 0.97rem; line-height: 1.5; animation: msg-in var(--duration-slow) var(--ease-out); }
.msg p { margin: 0 0 6px; } .msg p:last-child { margin: 0; }
.msg--bot { background: var(--surface-steel); border-bottom-left-radius: 4px; align-self: flex-start; }
.msg--user { background: var(--ink); color: #fff; border-bottom-right-radius: 4px; align-self: flex-end; }
.msg--note { align-self: center; font-size: 0.85rem; color: var(--muted); background: none; padding: 4px; }
.msg .word { opacity: 0; filter: blur(4px); transition: opacity var(--duration-base) var(--ease-out), filter var(--duration-base) var(--ease-out); }
.msg .word.is-in { opacity: 1; filter: none; }
.msg-action { margin-top: 8px; }
.msg-action .btn { min-height: 40px; padding: 8px 14px; font-size: 0.92rem; }
.typing { display: inline-flex; gap: 4px; padding: 14px; align-self: flex-start; background: var(--surface-steel); border-radius: 14px; }
.typing span { width: 6px; height: 6px; border-radius: 50%; background: var(--muted); opacity: 0.5; }
.markus-chips { display: flex; gap: 6px; flex-wrap: wrap; padding: 0 16px 10px; }
.markus-chips[hidden] { display: none; }
.markus-chips button { border: 0; background: var(--surface-raised); box-shadow: var(--shadow); border-radius: 999px; padding: 8px 12px; min-height: 36px; font: 600 0.85rem/1 var(--font-body); cursor: pointer; color: var(--ink); }
.markus-chips button:hover { box-shadow: var(--shadow-hover); }
.markus-form { display: flex; gap: 8px; padding: 12px; border-top: 1px solid var(--line); }
.markus-form textarea { flex: 1; resize: none; border: 0; border-radius: 10px; background: var(--surface-steel); padding: 12px; font: 400 0.97rem/1.4 var(--font-body); min-height: 46px; max-height: 120px; color: var(--ink); }
.markus-form textarea:focus { outline: 2px solid var(--ink); }
.markus-form button { width: 46px; height: 46px; border-radius: 10px; border: 0; background: var(--brand-red); color: #fff; cursor: pointer; display: grid; place-items: center; flex: none; }
.markus-form button:disabled { opacity: 0.5; cursor: default; }
.markus-legal { font-size: 0.75rem; color: var(--muted); padding: 0 16px 10px; margin: 0; }
@keyframes msg-in { from { opacity: 0; transform: translateY(8px); filter: blur(4px); } to { opacity: 1; transform: none; filter: none; } }

/* ---------- Live demo additions ---------- */
.demo-intro { color: #c9ccd0; }
.demo-intro p { color: #c9ccd0; }
.demo-intro-kicker { font: 600 0.78rem/1 var(--font-mono); color: #6fd3a3; margin-bottom: 12px; }
.demo-intro-list { margin: 12px 0 0; padding-left: 1.3em; display: grid; gap: 8px; color: #e7e9ec; }
.demo-thinking { display: flex; align-items: center; gap: 10px; color: #9ea3aa; font-family: var(--font-mono); font-size: 0.85rem; padding: 8px 0; }
.demo-thinking span { width: 6px; height: 6px; border-radius: 50%; background: #ff8a8f; animation: think 1.2s var(--ease-in-out) infinite; }
.demo-thinking span:nth-child(2) { animation-delay: 0.15s; }
.demo-thinking span:nth-child(3) { animation-delay: 0.3s; }
@keyframes think { 0%, 100% { opacity: 0.3; } 50% { opacity: 1; } }
.demo-answer { display: grid; gap: 12px; }
.demo-answer-text p { margin: 0 0 8px; color: #e7e9ec; font-size: 0.95rem; max-width: none; }
.demo-answer-text p:last-child { margin: 0; }
.demo-tools { font: 400 0.75rem/1.4 var(--font-mono); color: #9ea3aa; margin: 0; }
.demo-source-label { font: 600 0.75rem/1.3 var(--font-mono); color: #f0c46b; margin: 0; }
.demo-source-label.is-live { color: #6fd3a3; }
.demo-prompt { background: var(--surface-steel); border-radius: 8px; padding: 12px 14px; color: var(--ink) !important; }
.demo-prompt span { display: block; font: 600 0.72rem/1 var(--font-mono); color: var(--brand-red-strong); margin-bottom: 6px; }
.demo-prompt q { quotes: "\201C" "\201D"; font-style: italic; }
.demo-records { font-size: 0.85rem; }
.refund-note { font-size: 0.88rem; margin-top: 16px; }
.demo-endcard .field input { background: #fff; }
.demo-narration.form { gap: 14px; }

/* ---------- Health Check customer pages ---------- */
.cust-banner { padding: 14px 16px; border-radius: var(--r-control); background: rgb(30 142 90 / 0.12); color: #145c3b; margin: 0 0 24px; font-weight: 600; }
.cust-banner.is-error { background: #fbe9ea; color: var(--error); }
.cust-summary { margin-bottom: 24px; }
.cust-progress { font-weight: 600; }
.cust-steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.cust-step { background: var(--surface-raised); border-radius: var(--r-panel); padding: 16px 18px; box-shadow: var(--shadow); }
.cust-step.is-done { background: var(--surface-steel); box-shadow: none; }
.cust-step .consent { color: var(--ink); font-size: 0.98rem; }
.cust-roles { display: grid; gap: 12px; margin: 16px 0; }
.cust-role { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; padding: 14px 16px; border-radius: var(--r-control); background: var(--surface-steel); }
.cust-role .status, .cust-role .chip { margin-left: 8px; }
.ws-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: var(--s5); align-items: start; }
@media (max-width: 900px) { .ws-grid { grid-template-columns: 1fr; } }
.ws-log { min-height: 320px; max-height: 520px; overflow-y: auto; display: flex; flex-direction: column; gap: 10px; padding: 8px 0 16px; }
.ws-log .msg { max-width: 92%; }
.ws-form textarea { width: 100%; border: 0; border-radius: 10px; background: var(--surface-steel); padding: 12px; font: 400 1rem/1.4 var(--font-body); color: var(--ink); margin-bottom: 10px; }
.ws-form textarea:focus { outline: 2px solid var(--ink); }

/* Reveal (GSAP sets the start state; without JS content stays visible) */
.js .reveal { opacity: 0; }
@media (prefers-reduced-motion: reduce) { .js .reveal { opacity: 1; } }