/*
  The Nervus System public site — index, features, how it works, integrations,
  benefits, login and sign up. Loaded after jarvis-design-system.css and
  built only on its tokens, so the pages a customer sees before signing in
  share the app's palette (deep blue structure, one kiwi-green accent for
  intelligence moments), its Libre Caslon display face and its components.
*/

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
.site [id] { scroll-margin-top: 88px; }

body.site {
  margin: 0;
  background: var(--n-0);
  color: var(--db-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.site a { color: inherit; text-decoration: none; }
.site img, .site svg { display: block; }
:where(.site) :where(h1, h2, h3, h4, p) { margin: 0; }

.wrap { width: 100%; max-width: 1160px; margin: 0 auto; padding: 0 24px; }

.skip-link {
  position: absolute; left: 12px; top: -48px; z-index: var(--z-toast);
  padding: 8px 14px; border-radius: var(--db-radius-sm);
  background: var(--db-primary); color: #fff !important; font-weight: 600; font-size: 14px;
}
.skip-link:focus { top: 12px; }

:focus-visible { outline: 2px solid var(--db-primary); outline-offset: 2px; }

/* ============ Buttons ============ */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 44px; padding: 0 22px;
  border: 1px solid transparent; border-radius: var(--db-radius-full);
  font: 600 15px/1 var(--font-body);
  cursor: pointer; white-space: nowrap;
  transition: background var(--duration-fast) var(--ease-standard), border-color var(--duration-fast) var(--ease-standard), color var(--duration-fast) var(--ease-standard), transform var(--duration-fast) var(--ease-standard);
}
.btn:active { transform: translateY(1px); }
.btn-sm { height: 36px; padding: 0 16px; font-size: 14px; }
.btn-primary { background: var(--db-primary); color: #fff !important; }
.btn-primary:hover { background: var(--db-primary-hover); }
.btn-secondary { background: var(--n-0); border-color: var(--db-border); color: var(--db-text) !important; }
.btn-secondary:hover { border-color: var(--db-primary); color: var(--db-primary) !important; }
.btn-ghost { background: transparent; color: var(--n-600) !important; }
.btn-ghost:hover { background: var(--n-100); color: var(--db-text) !important; }
.btn-light { background: #fff; color: var(--db-primary) !important; }
.btn-light:hover { background: var(--db-primary-soft); }
.btn-outline-light { border-color: rgba(255, 255, 255, .35); color: #fff !important; }
.btn-outline-light:hover { border-color: #fff; background: rgba(255, 255, 255, .08); }
.btn .arrow { transition: transform var(--duration-base) var(--ease-out); }
.btn:hover .arrow { transform: translateX(3px); }

/* ============ Header ============ */

.site-header {
  position: sticky; top: 0; z-index: var(--z-sticky);
  background: rgba(255, 255, 255, .86);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-base) var(--ease-standard);
}
.site-header.is-scrolled { border-bottom-color: var(--db-border); }

.site-nav { display: flex; align-items: center; gap: 8px; height: 68px; }

.brand {
  display: inline-flex; align-items: center; gap: 10px; margin-right: 28px;
  font-family: var(--font-display); font-size: 25px; line-height: 1; letter-spacing: .02em;
  color: var(--db-primary) !important;
}
.brand-mark { width: 30px; height: 30px; flex: 0 0 auto; display: block; }
/* The Nervus System wordmark: the logo's wide, thin capitals */
.brand-name { font-family: "Jura", "Inter", system-ui, sans-serif; font-size: 14px; font-weight: 500; letter-spacing: .26em; text-transform: uppercase; color: var(--n-900); white-space: nowrap; }
.auth-side .brand-name { color: #fff; }
@media (max-width: 560px) { .brand-the, .brand-sys { display: none; } }

.nav-links { display: flex; align-items: center; gap: 2px; margin: 0; padding: 0; list-style: none; }
.nav-links a {
  display: inline-flex; align-items: center; height: 36px; padding: 0 12px;
  border-radius: var(--db-radius-sm);
  color: var(--n-500); font-size: 14.5px; font-weight: 600;
}
.nav-links a:hover { background: var(--n-100); color: var(--db-text); }
.nav-links a[aria-current="page"] { color: var(--db-primary); }

.nav-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }

.nav-toggle {
  display: none; place-items: center; width: 40px; height: 40px; margin-left: 4px;
  border: 1px solid var(--db-border); border-radius: var(--db-radius-sm);
  background: #fff; color: var(--db-text); cursor: pointer;
}

.mobile-nav {
  display: none; padding: 8px 24px 20px;
  border-top: 1px solid var(--db-border); background: #fff;
}
.mobile-nav a { display: block; padding: 12px 4px; border-bottom: 1px solid var(--n-100); font-weight: 600; color: var(--n-700); }
.mobile-nav a[aria-current="page"] { color: var(--db-primary); }
.mobile-nav .btn { width: 100%; margin-top: 16px; }

/* ============ Type ============ */

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--db-primary); font-size: 12.5px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
}
.eyebrow-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--db-accent-bright); box-shadow: 0 0 0 3px var(--db-accent-soft); }

.display-xl, .display-lg, .display-md {
  font-family: var(--font-display); font-weight: 400; color: var(--n-900); letter-spacing: -.005em;
}
.display-xl { font-size: clamp(42px, 6.4vw, 76px); line-height: 1.02; }
.display-lg { font-size: clamp(34px, 4.4vw, 52px); line-height: 1.08; }
.display-md { font-size: clamp(26px, 3vw, 34px); line-height: 1.15; }
.display-xl em, .display-lg em, .display-md em { font-style: normal; color: var(--db-primary); }

.lede { color: var(--n-500); font-size: clamp(17px, 1.6vw, 19.5px); line-height: 1.6; }
.muted { color: var(--n-500); }

/* ============ Sections ============ */

.section { padding: 104px 0; }
.section-tight { padding: 72px 0; }
.section-tight:empty { padding: 0; height: 96px; }
.section-alt { background: var(--n-50); border-top: 1px solid var(--n-150); border-bottom: 1px solid var(--n-150); }

.section-head { max-width: 680px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head .eyebrow { margin-bottom: 16px; }
.section-head .lede { margin-top: 18px; }

/* Page hero for inner pages */
.page-hero { position: relative; padding: 96px 0 72px; overflow: hidden; }
.page-hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(60% 80% at 85% 0%, var(--db-primary-soft) 0%, transparent 70%),
    linear-gradient(var(--n-0), var(--n-0));
}
.page-hero .eyebrow { margin-bottom: 20px; }
.page-hero .lede { max-width: 640px; margin-top: 22px; }
.page-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

/* ============ Home hero ============ */

.hero { position: relative; padding: 88px 0 0; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(50% 55% at 12% 8%, var(--db-primary-soft) 0%, transparent 70%),
    radial-gradient(40% 45% at 92% 18%, var(--db-accent-soft) 0%, transparent 70%);
}
.hero-copy { max-width: 820px; margin: 0 auto; text-align: center; }
.hero-copy .eyebrow { margin-bottom: 24px; padding: 6px 14px 6px 10px; border: 1px solid var(--db-border); border-radius: var(--db-radius-full); background: #fff; letter-spacing: .04em; text-transform: none; font-size: 13.5px; font-weight: 600; color: var(--n-600); }
.hero-copy .lede { max-width: 640px; margin: 24px auto 0; }
.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 36px; }
.hero-note { margin-top: 16px; color: var(--n-400); font-size: 13.5px; }

/* ============ Product preview (mirrors dashboard.html) ============ */

.preview-stage { position: relative; margin-top: 72px; padding: 0 0 0; }
.preview-stage::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 120px;
  background: linear-gradient(transparent, #fff); pointer-events: none;
}

.app-frame {
  position: relative; max-width: 1040px; margin: 0 auto;
  border: 1px solid var(--n-200); border-bottom: 0; border-radius: 18px 18px 0 0;
  background: var(--n-50);
  box-shadow: 0 30px 80px -30px rgba(15, 36, 86, .35), 0 8px 24px -12px rgba(15, 36, 86, .12);
  overflow: hidden; font-size: 13px; text-align: left;
}
.app-bar {
  display: flex; align-items: center; gap: 18px; height: 46px; padding: 0 18px;
  background: #fff; border-bottom: 1px solid var(--n-200);
}
.app-bar .app-brand { font-family: var(--font-display); font-size: 18px; color: var(--db-primary); }
.app-bar .app-tabs { display: flex; gap: 14px; color: var(--n-500); font-weight: 600; font-size: 12.5px; }
.app-bar .app-tabs .on { color: var(--db-primary); }
.app-bar .app-search { margin-left: auto; width: 200px; height: 28px; border: 1px solid var(--n-200); border-radius: 8px; background: var(--n-50); color: var(--n-400); font-size: 12px; display: flex; align-items: center; padding: 0 10px; }
.app-bar .app-avatar { width: 28px; height: 28px; border-radius: 50%; background: var(--db-primary); color: #fff; display: grid; place-items: center; font-size: 11px; font-weight: 700; }

.app-body { padding: 26px 28px 40px; }
.app-greet small { color: var(--n-500); font-size: 12px; font-weight: 500; }
.app-greet h4 { margin: 4px 0 6px; font: 400 26px/1.15 var(--font-display); color: var(--n-900); }
.app-greet p { color: var(--n-600); font-size: 13.5px; }
.app-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }

.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 10px; border-radius: var(--db-radius-full);
  font-size: 11.5px; font-weight: 650; line-height: 1.5; white-space: nowrap;
  background: var(--n-100); color: var(--n-600); border: 1px solid var(--n-200);
}
.chip-blue { background: var(--db-primary-soft); color: var(--db-primary); border-color: transparent; }
.chip-green { background: var(--db-accent-soft); color: var(--db-accent-hover); border-color: transparent; }
.chip-amber { background: var(--db-warning-soft); color: var(--db-warning-hover); border-color: transparent; }
.chip-dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

.app-ask {
  display: flex; align-items: center; gap: 10px; margin-top: 18px; padding: 10px 10px 10px 14px;
  background: #fff; border: 1px solid var(--n-200); border-radius: 12px; box-shadow: var(--shadow-sm);
  color: var(--n-400);
}
.app-ask .spark { color: var(--db-accent); }
.app-ask .fake-btn { margin-left: auto; padding: 6px 12px; border-radius: 999px; background: var(--db-primary); color: #fff; font-weight: 600; font-size: 12px; }

.app-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 16px; margin-top: 16px; }
.app-card { background: #fff; border: 1px solid var(--n-200); border-radius: 12px; box-shadow: var(--shadow-sm); }
.app-card-head { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid var(--n-150); }
.app-card-head h5 { margin: 0; font: 400 16px/1.2 var(--font-display); color: var(--n-900); }
.app-card-head span { color: var(--db-primary); font-size: 11.5px; font-weight: 600; }
.app-row { display: flex; align-items: flex-start; gap: 10px; padding: 11px 16px; border-bottom: 1px solid var(--n-100); }
.app-row:last-child { border-bottom: 0; }
.app-row .tick { flex: 0 0 auto; width: 16px; height: 16px; margin-top: 1px; border: 1.5px solid var(--n-300); border-radius: 5px; }
.app-row strong { display: block; color: var(--n-900); font-weight: 600; font-size: 13px; }
.app-row small { color: var(--n-500); font-size: 11.5px; }
.app-row .chip { margin-left: auto; }

.app-noticed {
  padding: 14px 16px; border-radius: 12px;
  background: linear-gradient(180deg, var(--db-accent-soft), #fff);
  border: 1px solid #dcefc4;
}
.app-noticed .label { color: var(--db-accent-hover); font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.app-noticed p { margin-top: 6px; color: var(--n-700); font-size: 12.5px; line-height: 1.5; }
.app-noticed .actions { display: flex; gap: 6px; margin-top: 10px; }
.app-noticed .actions span { padding: 5px 10px; border-radius: 999px; font-size: 11.5px; font-weight: 600; }
.app-noticed .actions .yes { background: var(--db-primary); color: #fff; }
.app-noticed .actions .no { background: #fff; border: 1px solid var(--n-200); color: var(--n-600); }

/* ============ Logo strip ============ */

.logo-strip { padding: 40px 0 8px; text-align: center; }
.logo-strip p { color: var(--n-400); font-size: 13px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; }
.logo-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 40px; margin-top: 22px; }
.logo-row span { color: var(--n-500); font-size: 18px; font-weight: 700; letter-spacing: -.01em; opacity: .85; }

/* ============ Cards & grids ============ */

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.card {
  position: relative; padding: 28px;
  background: #fff; border: 1px solid var(--n-200); border-radius: var(--db-radius-lg);
  transition: border-color var(--duration-base) var(--ease-standard), box-shadow var(--duration-base) var(--ease-standard), transform var(--duration-base) var(--ease-out);
}
a.card:hover, .card.hoverable:hover { border-color: var(--n-300); box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.card h3 { margin-top: 18px; font-size: 18px; font-weight: 650; line-height: 1.3; color: var(--n-900); }
.card p { margin-top: 8px; color: var(--n-500); font-size: 15px; line-height: 1.6; }
.card .card-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 18px; color: var(--db-primary); font-weight: 600; font-size: 14.5px; }

.icon-tile {
  display: grid; place-items: center; width: 44px; height: 44px;
  border-radius: 12px; background: var(--db-primary-soft); color: var(--db-primary);
}
.icon-tile.green { background: var(--db-accent-soft); color: var(--db-accent-hover); }
.icon-tile svg { width: 22px; height: 22px; }

.check-list { margin: 18px 0 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding: 6px 0 6px 28px; color: var(--n-600); font-size: 15px; }
.check-list li::before {
  content: ""; position: absolute; left: 0; top: 10px; width: 18px; height: 18px; border-radius: 50%;
  background: var(--db-accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'%3E%3Cpath d='M5 9.2 7.8 12 13 6.5' fill='none' stroke='%23528208' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/18px no-repeat;
}

/* ============ Feature rows (copy + visual) ============ */

.feature-row { display: grid; grid-template-columns: 1fr 1.05fr; align-items: center; gap: 72px; }
.feature-row + .feature-row { margin-top: 120px; }
.feature-row.flip .feature-copy { order: 2; }
.feature-copy .eyebrow { margin-bottom: 16px; }
.feature-copy .lede { margin-top: 18px; font-size: 17.5px; }

.visual {
  position: relative; padding: 28px; border-radius: 22px;
  background: linear-gradient(160deg, var(--db-primary-soft) 0%, var(--n-50) 60%);
  border: 1px solid var(--n-150);
}
.visual.green { background: linear-gradient(160deg, var(--db-accent-soft) 0%, var(--n-50) 60%); }
.visual .app-card + .app-card, .visual .app-card + .app-noticed, .visual .app-noticed + .app-card { margin-top: 14px; }
.visual .stack-offset { margin-left: 36px; margin-top: -18px; position: relative; box-shadow: var(--shadow-lg); }

.transcript-line { display: grid; grid-template-columns: 44px 1fr; gap: 10px; padding: 9px 16px; font-size: 12.5px; color: var(--n-600); }
.transcript-line b { color: var(--n-900); font-weight: 600; }
.transcript-line time { color: var(--n-400); font-variant-numeric: tabular-nums; font-size: 11.5px; padding-top: 1px; }
.transcript-line.hl { background: var(--db-accent-soft); }

.live-dot { display: inline-flex; align-items: center; gap: 6px; color: #b91c1c; font-size: 11.5px; font-weight: 700; }
.live-dot::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: #dc2626; animation: pulse 1.6s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }

.bar-chart { display: flex; align-items: flex-end; gap: 10px; height: 110px; padding: 16px; }
.bar-chart span { flex: 1; border-radius: 6px 6px 2px 2px; background: var(--db-primary-soft); }
.bar-chart span.on { background: var(--db-primary); }

.doc-row { display: flex; align-items: center; gap: 12px; padding: 11px 16px; border-bottom: 1px solid var(--n-100); font-size: 13px; }
.doc-row:last-child { border-bottom: 0; }
.doc-row .doc-ico { width: 28px; height: 32px; flex: 0 0 auto; border-radius: 4px; background: var(--db-primary-soft); position: relative; }
.doc-row .doc-ico::after { content: ""; position: absolute; left: 6px; right: 6px; top: 9px; height: 2px; background: var(--db-primary); opacity: .4; box-shadow: 0 5px 0 var(--db-primary), 0 10px 0 var(--db-primary); }
.doc-row strong { display: block; color: var(--n-900); font-weight: 600; }
.doc-row small { color: var(--n-500); font-size: 11.5px; }

.answer { padding: 14px 16px; font-size: 13px; color: var(--n-700); line-height: 1.6; }
.answer .q { display: inline-block; margin-bottom: 10px; padding: 7px 12px; border-radius: 12px 12px 4px 12px; background: var(--db-primary); color: #fff; font-weight: 500; }
.answer .src { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }

/* ============ Authority ladder ============ */

.ladder { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.rung {
  position: relative; padding: 22px 18px 20px;
  background: #fff; border: 1px solid var(--n-200); border-radius: var(--db-radius);
}
.rung .num {
  display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%;
  background: var(--n-100); color: var(--n-600); font-weight: 700; font-size: 13px;
}
.rung h3 { margin-top: 14px; font-size: 15.5px; font-weight: 650; color: var(--n-900); }
.rung p { margin-top: 6px; color: var(--n-500); font-size: 13.5px; line-height: 1.55; }
.rung.is-default { border-color: var(--db-primary); box-shadow: 0 0 0 3px var(--db-primary-soft); }
.rung.is-default .num { background: var(--db-primary); color: #fff; }
.rung .tag { position: absolute; top: 14px; right: 14px; }
.ladder-meter { display: flex; justify-content: space-between; margin-top: 14px; color: var(--n-400); font-size: 12.5px; font-weight: 600; }

/* ============ Steps / timeline ============ */

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.step { padding: 24px; border-top: 2px solid var(--n-200); }
.step:hover { border-top-color: var(--db-primary); }
.step .step-n { font-family: var(--font-display); font-size: 40px; line-height: 1; color: var(--db-primary); }
.step h3 { margin-top: 18px; font-size: 17px; font-weight: 650; color: var(--n-900); }
.step p { margin-top: 8px; color: var(--n-500); font-size: 15px; }

.timeline { position: relative; display: grid; gap: 0; }
.tl-item { display: grid; grid-template-columns: 88px 1fr 1fr; gap: 40px; align-items: start; padding: 56px 0; border-top: 1px solid var(--n-150); }
.tl-item:first-child { border-top: 0; padding-top: 0; }
.tl-n { font-family: var(--font-display); font-size: 64px; line-height: .9; color: var(--db-primary); }
.tl-copy h2 { font-family: var(--font-display); font-weight: 400; font-size: clamp(26px, 2.6vw, 32px); line-height: 1.15; color: var(--n-900); }
.tl-copy p { margin-top: 14px; color: var(--n-500); font-size: 16.5px; }

/* ============ FAQ ============ */

.faq { max-width: 800px; margin: 0 auto; }
.faq details { border-bottom: 1px solid var(--n-200); }
.faq summary {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 22px 0; cursor: pointer; list-style: none;
  font-size: 17px; font-weight: 600; color: var(--n-900);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; flex: 0 0 auto; width: 12px; height: 12px;
  border-right: 2px solid var(--n-400); border-bottom: 2px solid var(--n-400);
  transform: rotate(45deg) translate(-3px, -3px); transition: transform var(--duration-base) var(--ease-out);
}
.faq details[open] summary::after { transform: rotate(225deg) translate(-3px, -3px); }
.faq details p { padding: 0 40px 24px 0; color: var(--n-500); font-size: 15.5px; }

/* ============ Integrations ============ */

.int-group + .int-group { margin-top: 64px; }
.int-group-head { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; margin-bottom: 22px; padding-bottom: 14px; border-bottom: 1px solid var(--n-200); }
.int-group-head h2 { font-family: var(--font-display); font-weight: 400; font-size: 28px; color: var(--n-900); }
.int-group-head p { color: var(--n-500); font-size: 15px; max-width: 460px; text-align: right; }

.int-card { display: flex; flex-direction: column; padding: 24px; }
.int-card-top { display: flex; align-items: center; gap: 14px; }
.int-logo {
  display: grid; place-items: center; width: 48px; height: 48px; flex: 0 0 auto;
  border-radius: 12px; border: 1px solid var(--n-200); background: #fff;
  font-weight: 800; font-size: 17px; letter-spacing: -.02em;
}
.int-card h3 { margin: 0; font-size: 17px; }
.int-card .int-cat { color: var(--n-400); font-size: 13px; font-weight: 600; }
.int-card p { margin-top: 16px; flex: 1; }
.int-card .int-meta { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 18px; }

.int-filter { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 48px; }
.int-filter button {
  height: 36px; padding: 0 16px; border-radius: var(--db-radius-full);
  border: 1px solid var(--n-200); background: #fff; color: var(--n-600);
  font: 600 14px/1 var(--font-body); cursor: pointer;
}
.int-filter button:hover { border-color: var(--n-300); color: var(--n-900); }
.int-filter button[aria-pressed="true"] { background: var(--db-primary); border-color: var(--db-primary); color: #fff; }

/* ============ Stat band ============ */

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.stat { padding: 8px 0 0; border-top: 2px solid var(--db-primary); }
.stat strong { display: block; margin-top: 18px; font-family: var(--font-display); font-weight: 400; font-size: 40px; line-height: 1; color: var(--n-900); }
.stat span { display: block; margin-top: 10px; color: var(--n-500); font-size: 15px; }

/* ============ CTA band ============ */

.cta-band { padding: 0 0 104px; }
.cta-panel {
  position: relative; overflow: hidden;
  padding: 72px 56px; border-radius: 28px;
  background: var(--brand-primary-active);
  color: #fff;
}
.cta-panel::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(45% 80% at 100% 0%, rgba(132, 204, 22, .22) 0%, transparent 70%),
    radial-gradient(50% 90% at 0% 100%, rgba(59, 99, 200, .55) 0%, transparent 70%);
}
.cta-panel > * { position: relative; }
.cta-panel h2 { max-width: 640px; font-family: var(--font-display); font-weight: 400; font-size: clamp(32px, 4vw, 48px); line-height: 1.08; color: #fff; }
.cta-panel p { max-width: 560px; margin-top: 18px; color: rgba(255, 255, 255, .78); font-size: 18px; }
.cta-panel .cta-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

/* ============ Footer ============ */

.site-footer { padding: 64px 0 40px; border-top: 1px solid var(--n-150); background: var(--n-50); }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 40px; }
.footer-grid .brand { margin-right: 0; }
.footer-grid > div > p { margin-top: 14px; max-width: 300px; color: var(--n-500); font-size: 14.5px; }
.footer-grid h4 { margin: 4px 0 14px; color: var(--n-900); font-size: 13px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.footer-grid ul { margin: 0; padding: 0; list-style: none; }
.footer-grid li + li { margin-top: 10px; }
.footer-grid li a { color: var(--n-500); font-size: 14.5px; }
.footer-grid li a:hover { color: var(--db-primary); }
.footer-base { display: flex; justify-content: space-between; gap: 16px; margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--n-200); color: var(--n-400); font-size: 13.5px; }

/* ============ Auth (login / sign up) ============ */

body.site-auth { min-height: 100vh; background: var(--n-0); }

.auth { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); min-height: 100vh; }

.auth-side {
  position: relative; overflow: hidden;
  display: flex; flex-direction: column; justify-content: space-between; gap: 48px;
  padding: 40px 56px 48px;
  background: var(--brand-primary-active); color: #fff;
}
.auth-side::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(55% 45% at 100% 0%, rgba(132, 204, 22, .20) 0%, transparent 70%),
    radial-gradient(70% 60% at 0% 100%, rgba(59, 99, 200, .55) 0%, transparent 70%);
}
.auth-side > * { position: relative; }
.auth-side .brand { color: #fff !important; }
.auth-side h2 { max-width: 460px; font-family: var(--font-display); font-weight: 400; font-size: clamp(30px, 3vw, 40px); line-height: 1.12; color: #fff; }
.auth-side .auth-side-copy { max-width: 440px; margin-top: 16px; color: rgba(255, 255, 255, .75); font-size: 16.5px; }
.auth-side .app-card, .auth-side .app-noticed { color: var(--n-900); max-width: 420px; }
.auth-side .app-noticed { margin-top: 14px; margin-left: 32px; box-shadow: 0 20px 48px -20px rgba(0, 0, 0, .45); }
.auth-side .app-card { box-shadow: 0 20px 48px -20px rgba(0, 0, 0, .45); }
.auth-points { margin: 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.auth-points li { display: flex; gap: 12px; color: rgba(255, 255, 255, .85); font-size: 15px; }
.auth-points li svg { flex: 0 0 auto; margin-top: 3px; color: var(--db-accent-bright); }

.auth-main { display: flex; flex-direction: column; padding: 28px 40px 32px; }
.auth-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.auth-top .back { display: inline-flex; align-items: center; gap: 6px; color: var(--n-500); font-size: 14.5px; font-weight: 600; }
.auth-top .back:hover { color: var(--db-primary); }
.auth-top .switch { color: var(--n-500); font-size: 14.5px; }
.auth-top .switch a { color: var(--db-primary); font-weight: 600; }
.auth-mobile-brand { display: none; }

.auth-card { width: 100%; max-width: 400px; margin: auto; padding: 48px 0; }
.auth-card h1 { font-family: var(--font-display); font-weight: 400; font-size: 40px; line-height: 1.1; color: var(--n-900); }
.auth-card .sub { margin-top: 12px; color: var(--n-500); font-size: 16px; }

.oauth { display: grid; gap: 12px; margin-top: 36px; }
.btn-oauth {
  position: relative; display: flex; align-items: center; justify-content: center; gap: 12px;
  width: 100%; height: 52px; padding: 0 20px;
  border: 1px solid var(--n-200); border-radius: 12px; background: #fff;
  color: var(--n-900); font: 600 15.5px/1 var(--font-body); cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-standard), box-shadow var(--duration-fast) var(--ease-standard), background var(--duration-fast) var(--ease-standard);
}
.btn-oauth:hover:not(:disabled) { border-color: var(--n-300); box-shadow: var(--shadow-md); }
.btn-oauth:disabled { cursor: progress; opacity: .7; }
.btn-oauth svg { width: 20px; height: 20px; flex: 0 0 auto; }
.btn-oauth .spinner {
  display: none; width: 18px; height: 18px; border-radius: 50%;
  border: 2px solid var(--n-200); border-top-color: var(--db-primary);
  animation: spin .7s linear infinite;
}
.btn-oauth.is-busy svg { display: none; }
.btn-oauth.is-busy .spinner { display: block; }
@keyframes spin { to { transform: rotate(360deg); } }

.auth-error {
  margin-top: 16px; padding: 12px 14px; border-radius: 10px;
  background: var(--db-danger-soft); color: var(--db-danger-hover); font-size: 14px; line-height: 1.5;
}
.auth-error[hidden] { display: none; }

.auth-divider { display: flex; align-items: center; gap: 14px; margin: 28px 0; color: var(--n-400); font-size: 13px; }
.auth-divider::before, .auth-divider::after { content: ""; flex: 1; height: 1px; background: var(--n-200); }

.auth-assure { display: grid; gap: 14px; }
.auth-assure div { display: flex; gap: 12px; color: var(--n-600); font-size: 14px; line-height: 1.5; }
.auth-assure svg { flex: 0 0 auto; width: 18px; height: 18px; margin-top: 1px; color: var(--db-primary); }

.auth-legal { margin-top: 32px; color: var(--n-400); font-size: 13px; line-height: 1.6; }
.auth-foot { color: var(--n-400); font-size: 13px; text-align: center; }

/* ============ How it all connects (The Nervus System + Nodis) ============
   The platform is the foundation panel holding connected work; Nodis is the
   card that sits on it and draws on it. Lines are drawn by site.js. */

.conn-section .section-head.center { max-width: 780px; }
.conn-section .section-head .lede + .lede { margin-top: 12px; }

.conn-flow {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px;
  max-width: 980px; margin: 0 auto; padding: 0; list-style: none;
}
.conn-flow li {
  position: relative; display: flex; align-items: flex-start; gap: 12px;
  padding: 14px 16px; background: #fff; border: 1px solid var(--n-200); border-radius: 14px; box-shadow: var(--shadow-sm);
}
.conn-flow li + li::before {
  content: ""; position: absolute; left: -30px; top: 50%; width: 24px; height: 1.5px;
  background: linear-gradient(90deg, var(--n-300), var(--db-primary));
}
.conn-flow li + li::after {
  content: ""; position: absolute; left: -10px; top: calc(50% - 4px); width: 7px; height: 7px;
  border-top: 1.5px solid var(--db-primary); border-right: 1.5px solid var(--db-primary); transform: rotate(45deg);
}
.conn-flow-n {
  flex: 0 0 auto; display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%;
  background: var(--db-primary-soft); color: var(--db-primary); font-size: 12.5px; font-weight: 700;
}
.conn-flow-n.is-nodis { background: var(--db-accent-soft); color: var(--db-accent-hover); }
.conn-flow strong { display: block; color: var(--n-900); font-size: 15px; font-weight: 650; line-height: 1.35; }
.conn-flow small { display: block; margin-top: 2px; color: var(--n-500); font-size: 13px; line-height: 1.45; }
.conn-flow-more { margin-top: 18px; text-align: center; }
.conn-flow-gap { height: 56px; }
.conn-flow.is-full { max-width: none; }
.conn-flow-more.is-full { text-align: left; }
.conn-flow-more a { display: inline-flex; align-items: center; gap: 6px; color: var(--db-primary); font-weight: 600; font-size: 14.5px; }

.conn-stage { position: relative; max-width: 980px; margin: 48px auto 0; }
.conn-lines { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 1; overflow: visible; pointer-events: none; }
.conn-edge { fill: none; stroke: #a9bbe3; stroke-width: 1.5; stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset .9s var(--ease-out); }
.conn-stage.is-drawn .conn-edge { stroke-dashoffset: 0; }
.conn-cite-line { fill: none; stroke: var(--db-accent-bright); stroke-width: 1.6; stroke-dasharray: 3 5; opacity: 0; transition: opacity .5s var(--ease-out), stroke-width .2s; }
.conn-stage.is-citing .conn-cite-line { opacity: .9; }
.conn-cite-line.is-focus { stroke-width: 2.6; opacity: 1; }

.conn-layer-tag {
  display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px;
  color: var(--db-primary); font-size: 11.5px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
}
.conn-layer-tag img { width: 18px; height: 18px; }
.conn-layer-tag span { color: var(--n-500); font-size: 12.5px; font-weight: 500; letter-spacing: 0; text-transform: none; }
.conn-layer-tag.is-nodis { color: var(--db-accent-hover); }
.conn-layer-tag .spark { color: var(--db-accent); font-size: 14px; }

.conn-nodis {
  position: relative; z-index: 2; max-width: 600px; margin: 0 auto -44px; padding: 18px 20px 20px;
  background: #fff; border: 1px solid var(--n-200); border-radius: 18px; box-shadow: var(--shadow-lg);
}
.conn-ask {
  display: flex; align-items: center; gap: 10px; margin-top: 12px; padding: 9px 9px 9px 14px;
  border: 1px solid var(--n-200); border-radius: 12px; background: var(--n-50);
}
.conn-ask-q { color: var(--n-800, var(--n-900)); font-size: 14.5px; font-weight: 500; }
.conn-ask .fake-btn { margin-left: auto; flex: 0 0 auto; padding: 6px 12px; border-radius: 999px; background: var(--db-primary); color: #fff; font-weight: 600; font-size: 12px; }
.conn-answer { margin-top: 12px; padding: 14px 16px; border-radius: 12px; background: linear-gradient(180deg, var(--db-accent-soft), #fff); border: 1px solid #dcefc4; }
.conn-answer p { color: var(--n-700); font-size: 14px; line-height: 1.6; }
.conn-answer strong { color: var(--n-900); font-weight: 650; }
.conn-sources { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-top: 12px; }
.conn-sources-label { margin-right: 2px; color: var(--n-500); font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.conn-cite {
  padding: 3px 10px; border-radius: var(--db-radius-full); background: #fff; border: 1px solid #cfe7ae;
  color: var(--db-accent-hover); font-size: 11.5px; font-weight: 650; white-space: nowrap; cursor: default;
}

.conn-platform {
  /* no z-index: the item cards must stack above the lines drawn over this panel */
  padding: 76px 28px 22px; border-radius: 22px;
  border: 1px solid #d6e0f5;
  background:
    radial-gradient(circle at 1px 1px, rgba(30, 58, 138, .10) 1px, transparent 0) 0 0 / 22px 22px,
    linear-gradient(180deg, var(--db-primary-soft), #fff 78%);
}
.conn-platform .conn-layer-tag { justify-content: center; margin-top: 24px; padding-top: 16px; border-top: 1px dashed #c9d6f0; }
.conn-graph { display: grid; grid-template-columns: repeat(8, 1fr); gap: 40px 18px; }
.conn-node {
  position: relative; z-index: 2; grid-column: span 2; padding: 10px 12px;
  background: #fff; border: 1px solid var(--n-200); border-radius: 12px; box-shadow: var(--shadow-sm);
  transition: border-color .4s var(--ease-out), box-shadow .4s var(--ease-out);
}
.conn-node:nth-child(5) { grid-column: 2 / span 2; }
.conn-kind { display: flex; align-items: center; gap: 6px; color: var(--n-500); font-size: 10.5px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; }
.conn-kind svg { width: 14px; height: 14px; fill: none; stroke: var(--db-primary); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.conn-title { display: block; margin-top: 4px; color: var(--n-900); font-size: 13.5px; font-weight: 600; line-height: 1.35; }
.conn-node.is-cited { border-color: var(--db-accent-bright); box-shadow: 0 0 0 3px var(--db-accent-soft), var(--shadow-sm); }
.conn-node.is-focus { box-shadow: 0 0 0 4px #dcefc4, var(--shadow-md); }

.conn-caption { max-width: 720px; margin: 20px auto 0; color: var(--n-500); font-size: 14px; line-height: 1.6; text-align: center; }

.conn-explain { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 72px; }
.conn-explain-item { padding-top: 22px; border-top: 1px solid var(--n-200); }
.conn-explain-icon {
  display: grid; place-items: center; width: 42px; height: 42px; border-radius: 12px;
  background: #fff; border: 1px solid var(--n-200); box-shadow: var(--shadow-sm);
}
.conn-explain-icon.is-nodis { color: var(--db-accent); font-size: 18px; }
.conn-explain-icon svg { width: 22px; height: 22px; fill: none; stroke: var(--db-primary); stroke-width: 1.8; stroke-linecap: round; }
.conn-explain-item h3 { margin-top: 16px; color: var(--n-900); font-size: 18px; font-weight: 650; line-height: 1.3; }
.conn-explain-sub { margin-top: 4px; color: var(--db-primary); font-size: 14.5px; font-weight: 600; }
.conn-explain-item p:last-child { margin-top: 10px; color: var(--n-500); font-size: 15px; line-height: 1.6; }

.conn-closing { margin-top: 72px; text-align: center; font-family: var(--font-display); font-size: clamp(26px, 3vw, 34px); line-height: 1.2; color: var(--n-900); }
.conn-closing em { font-style: normal; color: var(--db-primary); }

@media (max-width: 880px) {
  .conn-flow, .conn-flow.is-full { grid-template-columns: 1fr; gap: 22px; max-width: 520px; }
  .conn-flow li + li::before { left: 28px; top: -19px; width: 1.5px; height: 16px; background: linear-gradient(180deg, var(--n-300), var(--db-primary)); }
  .conn-flow li + li::after { left: 25px; top: -9px; transform: rotate(135deg); }
  .conn-graph { grid-template-columns: repeat(4, 1fr); gap: 26px 14px; }
  .conn-node:nth-child(5) { grid-column: span 2; }
  .conn-node:last-child { grid-column: 2 / span 2; }
  .conn-stage .conn-lines { display: none; } /* two items a row: the green rings show the sources without crossing lines */
  .conn-explain { grid-template-columns: 1fr; gap: 28px; max-width: 560px; margin-left: auto; margin-right: auto; }
}
@media (max-width: 600px) {
  .conn-stage { margin-top: 36px; }
  .conn-nodis { margin-bottom: -32px; padding: 16px; }
  .conn-ask-q { font-size: 14px; }
  .conn-platform { padding: 60px 12px 18px; border-radius: 18px; }
  .conn-graph { gap: 22px 10px; }
  .conn-node { padding: 9px 10px; }
  .conn-title { font-size: 13px; }
  .conn-explain, .conn-closing { margin-top: 56px; }
}
@media (prefers-reduced-motion: reduce) {
  .conn-edge, .conn-cite-line, .conn-node { transition: none; }
}

/* ============ Reveal on scroll ============ */

.js .reveal { opacity: 0; transform: translateY(16px); transition: opacity .7s var(--ease-out), transform .7s var(--ease-out); }
.js .reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .live-dot::before, .btn-oauth .spinner { animation: none; }
}

/* ============ Responsive ============ */

@media (max-width: 1024px) {
  .ladder { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .feature-row { gap: 48px; }
  .auth-side { padding: 36px 40px 40px; }
}

@media (max-width: 880px) {
  .nav-links, .nav-actions .btn-ghost, .nav-actions .btn-primary { display: none; }
  .nav-toggle { display: grid; }
  .site-header.is-open .mobile-nav { display: block; }
  .nav-actions { margin-left: auto; }

  .section { padding: 80px 0; }
  .grid-3, .steps, .stats { grid-template-columns: 1fr 1fr; }
  .feature-row, .feature-row.flip { grid-template-columns: 1fr; gap: 40px; }
  .feature-row.flip .feature-copy { order: 0; }
  .feature-row + .feature-row { margin-top: 88px; }
  .tl-item { grid-template-columns: 1fr; gap: 20px; padding: 44px 0; }
  .tl-n { font-size: 48px; }
  .app-grid { grid-template-columns: 1fr; }
  .app-grid > :last-child { display: none; }
  .app-bar .app-tabs, .app-bar .app-search { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
  .int-group-head { flex-direction: column; align-items: flex-start; }
  .int-group-head p { text-align: left; }

  .auth { grid-template-columns: 1fr; }
  .auth-side { display: none; }
  .auth-main { padding: 20px 16px 24px; }
  .auth-mobile-brand { display: inline-flex; }
  .auth-top .back { display: none; }
}

@media (max-width: 600px) {
  .wrap { padding: 0 16px; }
  .section { padding: 64px 0; }
  .section-head { margin-bottom: 40px; }
  .hero { padding-top: 56px; }
  .grid-3, .grid-2, .grid-4, .steps, .stats, .ladder { grid-template-columns: 1fr; }
  .preview-stage { margin-top: 48px; }
  .app-body { padding: 18px 16px 28px; }
  .visual { padding: 16px; border-radius: 18px; }
  .visual .stack-offset { margin-left: 16px; }
  .cta-panel { padding: 48px 24px; border-radius: 20px; }
  .cta-band { padding-bottom: 64px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-base { flex-direction: column; }
  .hero-actions .btn, .page-hero-actions .btn, .cta-actions .btn { width: 100%; }
  .auth-card { padding: 32px 0; }
  .auth-card h1 { font-size: 34px; }
}