/* Chatensy marketing site. Flat, spacious, emerald. No build step. */
:root {
  --bg: #FFFFFF; --surface: #F6FAF8; --surface-2: #EDF3F0; --border: #DCE6E0; --border-strong: #C3D2CA;
  --text: #0E1914; --text-muted: #4F5F57; --text-faint: #7A8780;
  --primary: #047857; --primary-hover: #065F46; --primary-soft: #E3F4EC; --primary-soft-text: #065F46; --on-primary: #FFFFFF;
  --ink: #0B1D16; --ink-text: #D7E4DD; --ink-strong: #FFFFFF; --ink-border: #1B3A30;
  --accent: #F59E0B; --accent-soft: #FEF3C7;
  --info: #1D4ED8; --info-soft: #E6EEFE; --violet: #6D28D9; --violet-soft: #F0EAFE;
  --ring: #059669;
  --shadow-sm: 0 1px 2px rgba(14, 25, 20, .06); --shadow-md: 0 8px 24px rgba(14, 25, 20, .08); --shadow-lg: 0 24px 60px rgba(14, 25, 20, .14);
  --radius: 14px; --radius-sm: 8px; --radius-lg: 22px;
  --font-head: "Plus Jakarta Sans", "Segoe UI", system-ui, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --container: 1180px;
  --space-1: 8px; --space-2: 16px; --space-3: 24px; --space-4: 32px; --space-5: 48px; --space-6: 72px; --space-7: 112px;
  --ease: cubic-bezier(.2, .7, .2, 1); --dur: 200ms;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0A100D; --surface: #111A16; --surface-2: #16211C; --border: #23332B; --border-strong: #31463C;
    --text: #E8F0EC; --text-muted: #A3B3AB; --text-faint: #7F9088;
    --primary: #10B981; --primary-hover: #34D399; --primary-soft: #0F2E23; --primary-soft-text: #6EE7B7; --on-primary: #04130D;
    --ink: #07100C; --ink-text: #B9CCC2; --ink-border: #16271F;
    --accent: #F2B347; --accent-soft: #33250C; --info: #7DA7FF; --info-soft: #172442; --violet: #B69CFF; --violet-soft: #251B40;
    --ring: #34D399;
    --shadow-sm: 0 1px 2px rgba(0,0,0,.4); --shadow-md: 0 8px 24px rgba(0,0,0,.45); --shadow-lg: 0 24px 60px rgba(0,0,0,.6);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0A100D; --surface: #111A16; --surface-2: #16211C; --border: #23332B; --border-strong: #31463C;
  --text: #E8F0EC; --text-muted: #A3B3AB; --text-faint: #7F9088;
  --primary: #10B981; --primary-hover: #34D399; --primary-soft: #0F2E23; --primary-soft-text: #6EE7B7; --on-primary: #04130D;
  --ink: #07100C; --ink-text: #B9CCC2; --ink-border: #16271F;
  --accent: #F2B347; --accent-soft: #33250C; --info: #7DA7FF; --info-soft: #172442; --violet: #B69CFF; --violet-soft: #251B40;
  --ring: #34D399;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.4); --shadow-md: 0 8px 24px rgba(0,0,0,.45); --shadow-lg: 0 24px 60px rgba(0,0,0,.6);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
body { margin: 0; background: var(--bg); color: var(--text); font: 400 16px/1.6 var(--font-body); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img, svg { display: block; max-width: 100%; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 700; line-height: 1.15; letter-spacing: -.015em; margin: 0 0 var(--space-2); text-wrap: balance; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); letter-spacing: -.03em; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); letter-spacing: -.025em; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.05rem; }
p { margin: 0 0 var(--space-2); }
ul, ol { margin: 0 0 var(--space-2); padding-left: 1.25rem; }
strong { font-weight: 600; }
code, .mono { font-family: ui-monospace, "Cascadia Code", Consolas, monospace; font-size: .92em; }
.lead { font-size: 1.2rem; color: var(--text-muted); max-width: 62ch; }
.muted { color: var(--text-muted); }
.faint { color: var(--text-faint); font-size: .9rem; }
.small { font-size: .9rem; }
.center { text-align: center; }
.center .lead { margin-left: auto; margin-right: auto; }
.container { width: min(100% - 32px, var(--container)); margin-inline: auto; }
.narrow { max-width: 760px; margin-inline: auto; }
.section { padding: var(--space-6) 0; }
.section-tight { padding: var(--space-5) 0; }
.section-alt { background: var(--surface); }
.section-ink { background: var(--ink); color: var(--ink-text); }
.section-ink h1, .section-ink h2, .section-ink h3, .section-ink strong { color: var(--ink-strong); }
.section-ink .lead, .section-ink .muted { color: var(--ink-text); }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font: 600 .8rem/1 var(--font-body); letter-spacing: .08em; text-transform: uppercase; color: var(--primary-soft-text); background: var(--primary-soft); border-radius: 999px; padding: 8px 14px; margin-bottom: var(--space-2); }
.section-ink .eyebrow { background: rgba(255,255,255,.08); color: #86EFAC; }
.eyebrow svg, .panel .row svg, .prose svg { width: 16px; height: 16px; flex: none; }
.panel .row > span { display: inline-flex; align-items: center; gap: 8px; }
.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; }
:focus-visible { outline: 3px solid var(--ring); outline-offset: 3px; border-radius: 6px; }
.skip { position: absolute; left: 16px; top: -60px; background: var(--primary); color: var(--on-primary); padding: 10px 16px; border-radius: var(--radius-sm); z-index: 1000; font-weight: 600; }
.skip:focus { top: 16px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 0 22px; border-radius: 999px; font: 600 .98rem/1 var(--font-body); border: 1.5px solid transparent; cursor: pointer; transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease), transform 120ms var(--ease); touch-action: manipulation; white-space: nowrap; }
.btn:active { transform: scale(.98); }
.btn-primary { background: var(--primary); color: var(--on-primary); }
.btn-primary:hover { background: var(--primary-hover); color: var(--on-primary); }
.btn-secondary { background: transparent; color: var(--text); border-color: var(--border-strong); }
.btn-secondary:hover { border-color: var(--text); color: var(--text); background: var(--surface); }
.section-ink .btn-secondary { color: var(--ink-strong); border-color: rgba(255,255,255,.3); }
.section-ink .btn-secondary:hover { background: rgba(255,255,255,.08); border-color: #fff; }
.btn-lg { min-height: 54px; padding: 0 28px; font-size: 1.05rem; }
.btn-sm { min-height: 38px; padding: 0 16px; font-size: .9rem; }
.btn svg { width: 18px; height: 18px; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }
.btn-row.center { justify-content: center; }

/* Header */
.header { position: sticky; top: 0; z-index: 100; background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: saturate(1.4) blur(12px); border-bottom: 1px solid var(--border); }
.nav { display: flex; align-items: center; justify-content: space-between; min-height: 68px; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-head); font-weight: 800; font-size: 1.25rem; color: var(--text); letter-spacing: -.02em; }
.brand svg { width: 32px; height: 32px; }
.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav-links a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 14px; border-radius: 999px; color: var(--text-muted); font-weight: 500; font-size: .95rem; transition: background var(--dur), color var(--dur); }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); background: var(--surface-2); }
.nav-cta { display: flex; align-items: center; gap: 8px; }
.nav-toggle { display: none; width: 44px; height: 44px; border: 1.5px solid var(--border-strong); background: transparent; border-radius: 10px; color: var(--text); cursor: pointer; align-items: center; justify-content: center; }
.nav-toggle svg { width: 22px; height: 22px; }
@media (max-width: 900px) {
  .nav-links { display: none; position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; align-items: stretch; background: var(--bg); border-bottom: 1px solid var(--border); padding: 12px 16px 20px; box-shadow: var(--shadow-md); }
  .nav-links a { min-height: 48px; font-size: 1.05rem; }
  .nav.open .nav-links { display: flex; }
  .nav-toggle { display: inline-flex; }
  .nav-cta .btn-secondary { display: none; }
}

/* Hero */
.hero { padding: var(--space-6) 0 var(--space-5); position: relative; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: -20% -10% auto; height: 70%; background: radial-gradient(60% 60% at 30% 20%, var(--primary-soft) 0%, transparent 70%); pointer-events: none; z-index: -1; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: var(--space-5); align-items: center; }
@media (max-width: 960px) { .hero-grid { grid-template-columns: 1fr; } }
.hero h1 { max-width: 14ch; }
.hero .lead { font-size: 1.25rem; margin-bottom: var(--space-3); }
.trust { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: var(--space-3); color: var(--text-muted); font-size: .92rem; }
.trust span { display: inline-flex; align-items: center; gap: 8px; }
.trust svg { width: 18px; height: 18px; color: var(--primary); }

/* Product mock */
.mock { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); overflow: hidden; }
.mock-bar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--border); background: var(--bg); font-size: .85rem; color: var(--text-muted); }
.mock-bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--border-strong); display: inline-block; }
.mock-body { display: grid; grid-template-columns: 200px 1fr; min-height: 380px; }
@media (max-width: 560px) { .mock-body { grid-template-columns: 1fr; } .mock-list { display: none; } }
.mock-list { border-right: 1px solid var(--border); background: var(--bg); padding: 10px; display: flex; flex-direction: column; gap: 6px; }
.mock-list div { padding: 10px; border-radius: 10px; font-size: .85rem; line-height: 1.3; }
.mock-list div.active { background: var(--primary-soft); color: var(--primary-soft-text); }
.mock-list b { display: block; font-weight: 600; color: inherit; }
.mock-list small { color: var(--text-faint); }
.mock-chat { padding: 16px; background: #EFEAE2; display: flex; flex-direction: column; gap: 10px; justify-content: flex-end; background-image: radial-gradient(rgba(11,29,22,.045) 1px, transparent 1px); background-size: 14px 14px; }
:root[data-theme="dark"] .mock-chat, html:not([data-theme="light"]) .dark-aware .mock-chat { background: #0D1612; }
.bubble { max-width: 80%; padding: 10px 12px; border-radius: 12px; font-size: .9rem; line-height: 1.4; box-shadow: var(--shadow-sm); color: #111B21; }
.bubble.in { background: #fff; align-self: flex-start; border-top-left-radius: 4px; }
.bubble.out { background: #D9FDD3; align-self: flex-end; border-top-right-radius: 4px; }
.bubble small { display: block; text-align: right; font-size: .72rem; color: #667781; margin-top: 4px; }
.bubble .btns { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; }
.bubble .btns span { background: #fff; color: #047857; border: 1px solid #c3d2ca; border-radius: 8px; padding: 6px 10px; font-size: .8rem; font-weight: 600; }
.mock-note { align-self: center; background: var(--accent-soft); color: #7A4A00; border-radius: 999px; padding: 6px 12px; font-size: .78rem; font-weight: 600; }
.float-card { position: absolute; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 16px; box-shadow: var(--shadow-md); font-size: .85rem; display: flex; gap: 10px; align-items: center; }
.float-card svg { width: 22px; height: 22px; color: var(--primary); }
.float-card b { display: block; font-size: 1rem; }
.hero-visual { position: relative; }
.hero-visual .fc1 { left: -24px; bottom: 36px; }
.hero-visual .fc2 { right: -16px; top: 48px; }
@media (max-width: 960px) { .float-card { display: none; } }

/* Grids and cards */
.grid { display: grid; gap: var(--space-3); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 960px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }
.card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: var(--space-3); transition: border-color var(--dur), transform var(--dur) var(--ease), box-shadow var(--dur); }
.card:hover { border-color: var(--border-strong); box-shadow: var(--shadow-md); }
.section-alt .card { background: var(--bg); }
.card .icon { width: 44px; height: 44px; border-radius: 12px; background: var(--primary-soft); color: var(--primary-soft-text); display: inline-flex; align-items: center; justify-content: center; margin-bottom: var(--space-2); }
.card .icon svg { width: 22px; height: 22px; }
.card h3 { margin-bottom: 8px; }
.card p:last-child { margin-bottom: 0; }
.card-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; margin-top: 10px; }
.card-link svg { width: 16px; height: 16px; }
.list-check { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.list-check li { display: flex; gap: 10px; align-items: flex-start; }
.list-check svg { width: 20px; height: 20px; flex: none; color: var(--primary); margin-top: 3px; }

/* Feature split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); align-items: center; }
.split.reverse > :first-child { order: 2; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } .split.reverse > :first-child { order: 0; } }
.split h2 { max-width: 20ch; }
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--space-3); box-shadow: var(--shadow-sm); }
.panel .row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--border); font-size: .92rem; }
.panel .row:last-child { border-bottom: 0; }
.pill { display: inline-flex; align-items: center; gap: 6px; border-radius: 999px; padding: 4px 10px; font-size: .78rem; font-weight: 600; background: var(--surface-2); color: var(--text-muted); }
.pill.ok { background: var(--primary-soft); color: var(--primary-soft-text); }
.pill.info { background: var(--info-soft); color: var(--info); }
.pill.violet { background: var(--violet-soft); color: var(--violet); }
.pill.warn { background: var(--accent-soft); color: #7A4A00; }
.bar { height: 8px; border-radius: 999px; background: var(--surface-2); overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--primary); border-radius: 999px; }

/* Steps */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
@media (max-width: 800px) { .steps { grid-template-columns: 1fr; } }
.step { position: relative; padding: var(--space-3); border-radius: var(--radius); background: var(--bg); border: 1px solid var(--border); }
.step::before { counter-increment: step; content: counter(step); display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 50%; background: var(--primary); color: var(--on-primary); font: 700 1rem var(--font-head); margin-bottom: var(--space-2); }

/* Logos / integrations */
.logo-row { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.logo-row span { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--border); border-radius: 999px; padding: 8px 14px; font-size: .9rem; font-weight: 500; color: var(--text-muted); background: var(--bg); }
.logo-row svg { width: 16px; height: 16px; color: var(--primary); }

/* Pricing */
.toggle { display: inline-flex; align-items: center; background: var(--surface-2); border-radius: 999px; padding: 4px; gap: 4px; }
.toggle button { border: 0; background: transparent; color: var(--text-muted); font: 600 .9rem var(--font-body); padding: 8px 16px; border-radius: 999px; cursor: pointer; min-height: 40px; }
.toggle button[aria-pressed="true"] { background: var(--bg); color: var(--text); box-shadow: var(--shadow-sm); }
.plans { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; align-items: stretch; }
@media (max-width: 1100px) { .plans { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 760px) { .plans { grid-template-columns: 1fr; } }
.plan { position: relative; display: flex; flex-direction: column; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: var(--space-3); }
.plan.popular { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.plan .tag { position: absolute; top: -12px; left: 20px; background: var(--primary); color: var(--on-primary); border-radius: 999px; padding: 4px 12px; font-size: .75rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.plan h3 { margin-bottom: 4px; }
.plan .price { font-family: var(--font-head); font-size: 2.2rem; font-weight: 800; letter-spacing: -.03em; margin: 8px 0 2px; font-variant-numeric: tabular-nums; }
.plan .price small { font: 500 .95rem var(--font-body); color: var(--text-muted); letter-spacing: 0; }
.plan ul { list-style: none; padding: 0; margin: var(--space-2) 0 var(--space-3); display: grid; gap: 8px; font-size: .92rem; }
.plan li { display: flex; gap: 8px; align-items: flex-start; }
.plan li svg { width: 18px; height: 18px; flex: none; color: var(--primary); margin-top: 2px; }
.plan .btn { margin-top: auto; width: 100%; }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: .95rem; min-width: 640px; }
th, td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background: var(--surface); font-weight: 600; }
tr:last-child td { border-bottom: 0; }
td svg.yes { width: 20px; height: 20px; color: var(--primary); }
td svg.no { width: 20px; height: 20px; color: var(--text-faint); }

/* FAQ */
.faq { display: grid; gap: 10px; }
.faq details { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 0 var(--space-3); }
.faq summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 0; font: 600 1.05rem var(--font-head); min-height: 44px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.4rem; color: var(--primary); flex: none; transition: transform var(--dur); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding-bottom: 18px; color: var(--text-muted); margin: 0; }

/* Forms */
.form { display: grid; gap: 16px; }
.form .two { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 600px) { .form .two { grid-template-columns: 1fr; } }
label { display: block; font-weight: 600; font-size: .92rem; margin-bottom: 6px; }
.input, select, textarea { width: 100%; min-height: 48px; border: 1.5px solid var(--border-strong); border-radius: 10px; background: var(--bg); color: var(--text); padding: 10px 14px; font: 400 1rem var(--font-body); }
textarea { min-height: 120px; resize: vertical; }
.input:focus, select:focus, textarea:focus { outline: 3px solid var(--ring); outline-offset: 1px; border-color: var(--primary); }
.help { font-size: .85rem; color: var(--text-faint); margin-top: 6px; }
.notice { background: var(--primary-soft); color: var(--primary-soft-text); border-radius: var(--radius-sm); padding: 14px 16px; font-size: .95rem; }

/* CTA band */
.cta-band { border-radius: var(--radius-lg); background: var(--ink); color: var(--ink-text); padding: var(--space-5); display: grid; grid-template-columns: 1.3fr 1fr; gap: var(--space-4); align-items: center; }
.cta-band h2 { color: #fff; margin-bottom: 8px; }
@media (max-width: 800px) { .cta-band { grid-template-columns: 1fr; padding: var(--space-4); } }

/* Footer */
.footer { border-top: 1px solid var(--border); padding: var(--space-5) 0 var(--space-4); background: var(--surface); font-size: .92rem; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(4, 1fr); gap: var(--space-4); }
@media (max-width: 960px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.footer h4, .footer .foot-h { font-size: .85rem; letter-spacing: .06em; text-transform: uppercase; color: var(--text-faint); margin-bottom: 12px; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.footer a { color: var(--text-muted); }
.footer a:hover { color: var(--text); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; margin-top: var(--space-4); padding-top: var(--space-3); border-top: 1px solid var(--border); color: var(--text-faint); font-size: .85rem; }
.theme-btn { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--border-strong); background: transparent; color: var(--text-muted); border-radius: 999px; padding: 6px 12px; cursor: pointer; font: 500 .85rem var(--font-body); min-height: 36px; }
.theme-btn svg { width: 16px; height: 16px; }

/* Prose (legal) */
.prose { max-width: 760px; margin-inline: auto; }
.prose h2 { font-size: 1.5rem; margin-top: var(--space-4); }
.prose h3 { margin-top: var(--space-3); }
.prose p, .prose li { color: var(--text-muted); }
.prose .placeholder { background: var(--accent-soft); color: #7A4A00; border-radius: 4px; padding: 0 4px; }

/* Breadcrumb */
.crumbs { font-size: .88rem; color: var(--text-faint); display: flex; gap: 8px; flex-wrap: wrap; padding: 16px 0 0; }
.crumbs a { color: var(--text-muted); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 420ms var(--ease), transform 420ms var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

/* Definition block (AEO) */
.definition { border-left: 4px solid var(--primary); padding: 8px 0 8px 20px; font-size: 1.1rem; max-width: 70ch; }
.definition strong { color: var(--text); }
.kv { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 760px) { .kv { grid-template-columns: 1fr; } }
.kv div { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; }
.kv b { display: block; font-family: var(--font-head); font-size: 1.4rem; letter-spacing: -.02em; }
.kv span { color: var(--text-muted); font-size: .9rem; }

/* ===================== Motion and polish ===================== */
/* Scroll progress */
.progress { position: fixed; top: 0; left: 0; height: 3px; width: 100%; transform-origin: 0 50%; transform: scaleX(0); background: linear-gradient(90deg, var(--primary), #34D399); z-index: 200; pointer-events: none; }

/* Header shrink */
.header { transition: box-shadow var(--dur), background var(--dur); }
.header.scrolled { box-shadow: var(--shadow-sm); }
.header.scrolled .nav { min-height: 58px; }
.nav { transition: min-height 240ms var(--ease); }
.nav-links a { position: relative; }
.nav-links a::after { content: ""; position: absolute; left: 14px; right: 14px; bottom: 6px; height: 2px; border-radius: 2px; background: var(--primary); transform: scaleX(0); transform-origin: 0 50%; transition: transform 220ms var(--ease); }
.nav-links a:hover::after, .nav-links a[aria-current="page"]::after { transform: scaleX(1); }
@media (max-width: 900px) { .nav-links a::after { display: none; } }

/* Hero background: slow drifting blobs over a dot grid */
.hero::before { display: none; }
.hero-bg { position: absolute; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.hero-bg i { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .55; will-change: transform; }
.hero-bg .b1 { width: 520px; height: 520px; left: -120px; top: -160px; background: var(--primary-soft); animation: drift 18s ease-in-out infinite alternate; }
.hero-bg .b2 { width: 420px; height: 420px; right: -80px; top: 10%; background: var(--accent-soft); opacity: .35; animation: drift 22s ease-in-out infinite alternate-reverse; }
.hero-bg .b3 { width: 360px; height: 360px; left: 40%; bottom: -200px; background: var(--info-soft); animation: drift 26s ease-in-out infinite alternate; opacity: .4; }
@keyframes drift { from { transform: translate3d(0, 0, 0) scale(1); } to { transform: translate3d(60px, 40px, 0) scale(1.12); } }
.hero-bg::after { content: ""; position: absolute; inset: 0; background-image: radial-gradient(var(--border) 1px, transparent 1px); background-size: 26px 26px; -webkit-mask-image: radial-gradient(70% 60% at 50% 30%, #000 20%, transparent 80%); mask-image: radial-gradient(70% 60% at 50% 30%, #000 20%, transparent 80%); opacity: .5; }

/* Hero text: word stagger, then the rest rises */
.words .w { display: inline-block; opacity: 0; transform: translateY(.6em) rotate(2deg); animation: word 640ms var(--ease) forwards; animation-delay: calc(var(--i) * 55ms + 80ms); }
@keyframes word { to { opacity: 1; transform: none; } }
.hero .lead, .hero .btn-row, .hero .trust, .hero .eyebrow { opacity: 0; animation: rise 700ms var(--ease) forwards; }
.hero .eyebrow { animation-delay: 0ms; }
.hero .lead { animation-delay: 480ms; }
.hero .btn-row { animation-delay: 600ms; }
.hero .trust { animation-delay: 720ms; }
@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }

/* Hero visual: the mock slides in, bubbles arrive one by one, cards float */
.hero-visual { opacity: 0; animation: mock-in 900ms var(--ease) 300ms forwards; }
@keyframes mock-in { from { opacity: 0; transform: translateY(28px) scale(.97); } to { opacity: 1; transform: none; } }
.mock-chat .bubble, .mock-chat .mock-note { opacity: 0; transform: translateY(10px) scale(.96); animation: pop 460ms var(--ease) forwards; transform-origin: 0 100%; }
.mock-chat .bubble.out { transform-origin: 100% 100%; }
.mock-chat > :nth-child(1) { animation-delay: 1000ms; }
.mock-chat > :nth-child(2) { animation-delay: 1700ms; }
.mock-chat > :nth-child(3) { animation-delay: 2500ms; }
.mock-chat > :nth-child(4) { animation-delay: 3100ms; }
@keyframes pop { to { opacity: 1; transform: none; } }
.float-card { opacity: 0; animation: float 6s ease-in-out infinite, rise 600ms var(--ease) forwards; }
.hero-visual .fc1 { animation-delay: 0s, 1300ms; }
.hero-visual .fc2 { animation-delay: -3s, 1900ms; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* Cards: lift, and a glow border that follows the pointer */
.card, .plan, .step { position: relative; transition: transform 260ms var(--ease), box-shadow 260ms var(--ease), border-color 260ms var(--ease); }
.card:hover, .plan:hover, .step:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.card::before { content: ""; position: absolute; inset: -1px; border-radius: inherit; padding: 1px; background: radial-gradient(240px circle at var(--mx, 50%) var(--my, 50%), var(--primary), transparent 60%); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0; transition: opacity 260ms; pointer-events: none; }
.card:hover::before { opacity: .9; }
.card .icon { transition: transform 260ms var(--ease), background 260ms, color 260ms; }
.card:hover .icon { transform: scale(1.08) rotate(-4deg); background: var(--primary); color: var(--on-primary); }
.card-link svg { transition: transform 200ms var(--ease); }
.card:hover .card-link svg { transform: translateX(4px); }

/* Buttons: shine sweep, soft glow, magnetic pull */
.btn { position: relative; overflow: hidden; }
.btn-primary::after { content: ""; position: absolute; top: 0; bottom: 0; left: -60%; width: 40%; background: linear-gradient(100deg, transparent, rgba(255,255,255,.35), transparent); transform: skewX(-20deg); transition: left 600ms var(--ease); pointer-events: none; }
.btn-primary:hover::after { left: 120%; }
.btn-primary { box-shadow: 0 6px 18px -8px var(--primary); }
.btn-primary:hover { box-shadow: 0 10px 24px -8px var(--primary); }
.btn-lg svg { transition: transform 200ms var(--ease); }
.btn-lg:hover svg { transform: translateX(3px); }
.magnet { transition: transform 180ms var(--ease), background var(--dur), box-shadow var(--dur); }

/* Logo marquee */
.marquee { overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee .logo-row { display: flex; flex-wrap: nowrap; width: max-content; gap: 10px; animation: marquee 48s linear infinite; }
.marquee:hover .logo-row, .marquee:focus-within .logo-row { animation-play-state: paused; }
.marquee .logo-row span { transition: color var(--dur), border-color var(--dur), transform var(--dur); }
.marquee .logo-row span:hover { color: var(--text); border-color: var(--primary); transform: translateY(-2px); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* Reveal variants and inner stagger */
.reveal { transition-duration: 560ms; transform: translateY(22px); }
.reveal.in { transform: none; }
.panel.reveal .list-check li { opacity: 0; transform: translateX(-8px); transition: opacity 400ms var(--ease), transform 400ms var(--ease); }
.panel.reveal.in .list-check li { opacity: 1; transform: none; }
.steps .step { transition-delay: calc(var(--i, 0) * 120ms); }
.step::before { transition: transform 300ms var(--ease); }
.step:hover::before { transform: scale(1.1) rotate(-6deg); }

/* FAQ: animated open */
.faq details { transition: border-color var(--dur); }
.faq details[open] { border-color: var(--border-strong); }
.faq summary { transition: color var(--dur); }
.faq summary:hover { color: var(--primary); }
.faq details p { animation: faq-in 320ms var(--ease); }
@keyframes faq-in { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }

/* CTA band glow */
.cta-band { position: relative; overflow: hidden; }
.cta-band::before { content: ""; position: absolute; width: 420px; height: 420px; right: -120px; top: -160px; border-radius: 50%; background: radial-gradient(circle, rgba(16,185,129,.35), transparent 65%); animation: drift 16s ease-in-out infinite alternate; pointer-events: none; }
.cta-band > * { position: relative; }

/* Reduced motion: everything off, content visible */
@media (prefers-reduced-motion: reduce) {
  .words .w, .hero .lead, .hero .btn-row, .hero .trust, .hero .eyebrow, .hero-visual, .mock-chat .bubble, .mock-chat .mock-note, .float-card { animation: none !important; opacity: 1 !important; transform: none !important; }
  .hero-bg i, .cta-band::before, .marquee .logo-row { animation: none !important; }
  .panel.reveal .list-check li, .reveal { opacity: 1 !important; transform: none !important; }
  .progress { display: none; }
}

/* ===================== Brand palette from the Chatensy logo ===================== */
/* Blue #1146D4 (7.4:1 on white) leads; green is the "ensy" and signal colour. Buttons run blue to a deep green
   (#0F7F52, 5.0:1 with white), so white button text passes AA across the whole gradient. */
:root {
  --primary: #1146D4; --primary-hover: #0B36A8; --primary-soft: #EAF0FF; --primary-soft-text: #0B36A8; --on-primary: #FFFFFF;
  --green: #16A34A; --green-deep: #0F7F52; --green-soft: #E6F7EC; --green-text: #116B32;
  --brand-grad: linear-gradient(120deg, #1146D4 0%, #0E6BC8 45%, #0F7F52 100%);
  --brand-grad-soft: linear-gradient(120deg, #EAF0FF 0%, #E6F7EC 100%);
  --ink: #0A1638; --ink-text: #C8D2EE; --ink-strong: #FFFFFF; --ink-border: #1B2A5C;
  --ring: #1146D4;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --primary: #7BA0FF; --primary-hover: #A3BDFF; --primary-soft: #14224A; --primary-soft-text: #A9C0FF; --on-primary: #06102B;
    --green: #4ADE80; --green-soft: #0F2E1E; --green-text: #86EFAC;
    --brand-grad-soft: linear-gradient(120deg, #14224A 0%, #0F2E1E 100%);
    --ink: #060D24; --ink-text: #B8C4E6; --ink-border: #16224A; --ring: #7BA0FF;
  }
}
:root[data-theme="dark"] {
  --primary: #7BA0FF; --primary-hover: #A3BDFF; --primary-soft: #14224A; --primary-soft-text: #A9C0FF; --on-primary: #06102B;
  --green: #4ADE80; --green-soft: #0F2E1E; --green-text: #86EFAC;
  --brand-grad-soft: linear-gradient(120deg, #14224A 0%, #0F2E1E 100%);
  --ink: #060D24; --ink-text: #B8C4E6; --ink-border: #16224A; --ring: #7BA0FF;
}

/* Wordmark: "Chat" in navy, "ensy" in green, as in the logo */
.brand { gap: 10px; }
.brand .brand-mark { width: 36px; height: 36px; flex: none; }
.wordmark { font-family: var(--font-head); font-weight: 800; font-size: 1.32rem; letter-spacing: -.03em; line-height: 1; }
.wm-a { color: #0B3BB5; }
.wm-b { color: #1FA83C; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .wm-a { color: #8FB0FF; } :root:not([data-theme="light"]) .wm-b { color: #4ADE80; } }
:root[data-theme="dark"] .wm-a { color: #8FB0FF; }
:root[data-theme="dark"] .wm-b { color: #4ADE80; }
.footer .foot-h { font-size: .85rem; letter-spacing: .06em; text-transform: uppercase; color: var(--text-faint); margin-bottom: 12px; font-family: var(--font-body); font-weight: 600; }

/* Gradient buttons and accents */
.btn-primary, .btn-primary:hover { background: var(--brand-grad); color: #fff; border-color: transparent; }
.btn-primary { background-size: 140% 100%; background-position: 0 0; transition: background-position 400ms var(--ease), box-shadow var(--dur), transform 120ms var(--ease); box-shadow: 0 8px 20px -10px #1146D4; }
.btn-primary:hover { background-position: 100% 0; box-shadow: 0 12px 26px -10px #0F7F52; }
.plan .tag, .step::before { background: var(--brand-grad); color: #fff; }
.plan.popular { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.eyebrow { background: var(--green-soft); color: var(--green-text); }
.list-check svg, .plan li svg, .trust svg, td svg.yes, .logo-row svg { color: var(--green); }
.card:hover .icon { background: var(--brand-grad); color: #fff; }
.progress { background: linear-gradient(90deg, #1146D4, #1FB0F7 45%, #2CC244); }
.definition { border-image: linear-gradient(#1146D4, #2CC244) 1; border-left-width: 4px; border-left-style: solid; }
.section-ink .eyebrow { background: rgba(255,255,255,.08); color: #86EFAC; }
.cta-band::before { background: radial-gradient(circle, rgba(44,194,68,.30), transparent 65%); }
.cta-band::after { content: ""; position: absolute; width: 380px; height: 380px; left: -140px; bottom: -200px; border-radius: 50%; background: radial-gradient(circle, rgba(31,176,247,.25), transparent 65%); pointer-events: none; }
.hero-bg .b1 { background: #DCE6FF; }
.hero-bg .b2 { background: #D9F5E1; opacity: .6; }
.hero-bg .b3 { background: #D6F0FD; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .hero-bg .b1 { background: #14224A; } :root:not([data-theme="light"]) .hero-bg .b2 { background: #0F2E1E; } :root:not([data-theme="light"]) .hero-bg .b3 { background: #0E2A44; } }
:root[data-theme="dark"] .hero-bg .b1 { background: #14224A; }
:root[data-theme="dark"] .hero-bg .b2 { background: #0F2E1E; }
:root[data-theme="dark"] .hero-bg .b3 { background: #0E2A44; }
.hero h1 .w:nth-last-child(-n+3), .hero h1 .accent { background: var(--brand-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.float-card svg { color: var(--green); }
.bubble .btns span { color: #1146D4; }
.prose ol, .prose ul { color: var(--text-muted); }
.prose table { min-width: 560px; }
.prose section { scroll-margin-top: 90px; }
.prose .table-wrap { margin: var(--space-2) 0; }
.crumbs span[aria-current] { color: var(--text); max-width: 46ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Content is visible by default. The hide-then-animate states apply only when the head script set .anim (page visible,
   motion allowed), and .anim-done releases the hero after 3.2s even if animations never ran, so crawlers, background
   tabs and slow devices always get the full text. */
html:not(.anim) .hero .lead, html:not(.anim) .hero .btn-row, html:not(.anim) .hero .trust, html:not(.anim) .hero .eyebrow,
html:not(.anim) .hero-visual, html:not(.anim) .mock-chat .bubble, html:not(.anim) .mock-chat .mock-note, html:not(.anim) .float-card,
html.anim-done .hero .lead, html.anim-done .hero .btn-row, html.anim-done .hero .trust, html.anim-done .hero .eyebrow,
html.anim-done .hero-visual, html.anim-done .mock-chat .bubble, html.anim-done .mock-chat .mock-note, html.anim-done .words .w { opacity: 1 !important; transform: none !important; animation-name: none !important; }
html.anim-done .float-card { opacity: 1 !important; animation: float 6s ease-in-out infinite !important; }
html:not(.anim) .reveal, html:not(.anim) .panel.reveal .list-check li { opacity: 1 !important; transform: none !important; }
html:not(.anim) .hero-bg i, html:not(.anim) .cta-band::before { animation: none !important; }
html:not(.anim) .faq details p, html.anim-done .faq details p { animation: none !important; opacity: 1 !important; }

/* Help library */
.help-v { padding: 16px; }
.help-frame { border-radius: 12px; overflow: hidden; background: #0A1638; aspect-ratio: 16 / 9; margin-bottom: 14px; }
.help-frame video { width: 100%; height: 100%; display: block; }
.help-ch { list-style: none; padding: 0; margin: 10px 0; display: grid; gap: 4px; }
.help-ch a { font-variant-numeric: tabular-nums; }

/* CTA band sits on the dark ink background: its secondary button needs light text and border. */
.cta-band .btn-secondary { color: #fff; border-color: rgba(255, 255, 255, .45); background: transparent; }
.cta-band .btn-secondary:hover { color: #fff; border-color: #fff; background: rgba(255, 255, 255, .1); }
.cta-band .btn-secondary:focus-visible { outline-color: #8FB0FF; }