/* ASND AI — asnd.ai · black & white only · no frameworks */
:root {
  --black: #0a0a0a;
  --white: #ffffff;
  --ink: #0a0a0a;
  --paper: #ffffff;
  --line: #e2e2e2;
  --radius: 10px;
  --max: 1080px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { color: inherit; }

/* ---------- header ---------- */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--white);
  position: sticky; top: 0; z-index: 50;
}
.site-header .inner {
  max-width: var(--max); margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.brand { display: flex; align-items: center; text-decoration: none; }
.brand img { height: 40px; width: auto; display: block; }
.nav { display: flex; align-items: center; gap: 26px; }
.nav a { text-decoration: none; font-size: 15px; font-weight: 500; }
.nav a:hover { text-decoration: underline; text-underline-offset: 4px; }
.nav a.login-link { font-weight: 700; border: 1px solid var(--line); border-radius: 999px; padding: 8px 16px; }
.nav a.login-link:hover { text-decoration: none; background: var(--black); color: var(--white); border-color: var(--black); }
.btn {
  display: inline-block; text-decoration: none; font-weight: 700; font-size: 15px;
  background: var(--black); color: var(--white);
  padding: 12px 22px; border-radius: var(--radius); border: 2px solid var(--black);
  cursor: pointer; text-align: center;
}
.btn:hover { background: #222; }
.btn.ghost { background: transparent; color: var(--black); }
.btn.ghost:hover { background: var(--black); color: var(--white); }
.btn.light { background: var(--white); color: var(--black); border-color: var(--white); }
.btn.light:hover { background: #e8e8e8; }
.btn.ghost-light { background: transparent; color: var(--white); border-color: var(--white); }
.btn.ghost-light:hover { background: var(--white); color: var(--black); }

/* ---------- hero ---------- */
.hero { background: var(--black); color: var(--white); }
.hero .inner { max-width: var(--max); margin: 0 auto; padding: 96px 24px 88px; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; border: 1px solid rgba(255,255,255,.45);
  border-radius: 999px; padding: 7px 16px; margin-bottom: 26px;
}
.hero h1 { font-size: clamp(40px, 6vw, 72px); line-height: 1.06; letter-spacing: -0.02em; margin-bottom: 22px; }
.hero .sub { font-size: clamp(17px, 2.2vw, 21px); max-width: 640px; margin-bottom: 34px; }
.hero .ctas { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 26px; }
.micro { font-size: 14px; opacity: .75; }

/* ---------- sections ---------- */
.section { padding: 84px 24px; }
.section .inner { max-width: var(--max); margin: 0 auto; }
.section.tight { padding: 56px 24px; }
.kicker { font-size: 13px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 12px; }
h2 { font-size: clamp(28px, 4vw, 44px); line-height: 1.15; letter-spacing: -0.015em; margin-bottom: 18px; }
.lede { font-size: 18px; max-width: 720px; margin-bottom: 8px; }
.closer { font-size: 18px; font-weight: 600; max-width: 720px; margin-top: 28px; }

/* cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; margin-top: 36px; }
.card {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; background: var(--white);
}
.card h3 { font-size: 18px; margin-bottom: 10px; }
.card p { font-size: 15px; }
.card .num { font-size: 13px; font-weight: 700; letter-spacing: .1em; margin-bottom: 10px; display: block; }

/* steps */
.steps { counter-reset: step; margin-top: 36px; display: grid; gap: 0; border-top: 2px solid var(--black); }
.step { display: grid; grid-template-columns: 72px 1fr; gap: 18px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.step::before {
  counter-increment: step; content: "0" counter(step);
  font-size: 30px; font-weight: 800; letter-spacing: -0.02em;
}
.step h3 { font-size: 20px; margin-bottom: 8px; }
.step p { font-size: 16px; max-width: 640px; }

/* pillars */
.pillar { border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 28px; margin-top: 18px; background: var(--white); }
.pillar h3 { font-size: 22px; margin-bottom: 10px; }
.pillar p { font-size: 16px; max-width: 760px; }
.pillar .pull { font-weight: 700; margin-top: 14px; font-size: 16px; }

/* guardrails */
.guard { background: var(--black); color: var(--white); }
.guard .inner { max-width: var(--max); margin: 0 auto; }
.guard h2 { color: var(--white); }
.guard .lede { color: var(--white); }
.guard-list { margin-top: 32px; display: grid; gap: 16px; }
.guard-item { border: 1px solid rgba(255,255,255,.28); border-radius: var(--radius); padding: 22px 24px; }
.guard-item h3 { font-size: 17px; margin-bottom: 6px; }
.guard-item p { font-size: 15px; opacity: .88; }
.guard .closer { color: var(--white); }

/* pricing */
.price-card {
  border: 2px solid var(--black); border-radius: 14px; padding: 40px 36px; margin-top: 36px;
  max-width: 640px; background: var(--white);
}
.price-card .amount { font-size: 52px; font-weight: 800; letter-spacing: -0.03em; }
.price-card .per { font-size: 16px; font-weight: 600; }
.price-card ul { margin: 22px 0 22px 20px; font-size: 16px; }
.price-card li { margin-bottom: 8px; }
.fine { font-size: 13px; opacity: .65; margin-top: 16px; }

/* faq */
.faq { margin-top: 36px; max-width: 780px; }
.faq details { border-bottom: 1px solid var(--line); padding: 20px 0; }
.faq summary { font-size: 18px; font-weight: 700; cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; font-size: 22px; }
.faq details[open] summary::after { content: "–"; }
.faq .a { margin-top: 12px; font-size: 16px; }

/* cta band */
.cta-band { background: var(--black); color: var(--white); text-align: center; }
.cta-band .inner { max-width: 760px; margin: 0 auto; }
.cta-band h2 { color: var(--white); }
.cta-band p { margin-bottom: 30px; font-size: 18px; }
.cta-band .contact-line { margin-top: 26px; font-size: 15px; opacity: .8; }

/* footer */
.site-footer { border-top: 1px solid var(--line); background: var(--white); }
.site-footer .inner { max-width: var(--max); margin: 0 auto; padding: 44px 24px 36px; }
.foot-grid { display: flex; flex-wrap: wrap; gap: 32px; justify-content: space-between; align-items: flex-start; }
.foot-grid img { height: 44px; width: auto; }
.foot-links { display: flex; gap: 22px; flex-wrap: wrap; font-size: 15px; }
.foot-links a { text-decoration: none; }
.foot-links a:hover { text-decoration: underline; text-underline-offset: 4px; }
.legal { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 13px; opacity: .65; }

/* forms */
.form-card { border: 1px solid var(--line); border-radius: 14px; padding: 36px 32px; max-width: 640px; margin-top: 32px; }
label { display: block; font-size: 14px; font-weight: 700; margin: 18px 0 6px; }
input[type=text], input[type=email], input[type=tel], textarea {
  width: 100%; border: 1px solid var(--black); border-radius: 8px;
  padding: 12px 14px; font-size: 16px; font-family: inherit; background: var(--white); color: var(--black);
}
textarea { min-height: 120px; resize: vertical; }
.form-note { font-size: 14px; margin-top: 18px; }

/* tables */
.spec-table { width: 100%; border-collapse: collapse; margin-top: 28px; font-size: 16px; }
.spec-table th, .spec-table td { text-align: left; padding: 14px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.spec-table th { font-size: 13px; text-transform: uppercase; letter-spacing: .08em; }

/* misc */
.checklist { margin: 20px 0 0 20px; font-size: 16px; }
.checklist li { margin-bottom: 10px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-top: 32px; }
.badge {
  display: inline-block; font-size: 12px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase;
  border: 2px solid var(--black); border-radius: 999px; padding: 5px 14px; margin-bottom: 14px;
}

/* responsive */
@media (max-width: 760px) {
  .nav { gap: 16px; }
  .nav a:not(.btn):not(.login-link) { display: none; }
  .section { padding: 60px 20px; }
  .hero .inner { padding: 72px 20px 64px; }
  .step { grid-template-columns: 52px 1fr; }
  .two-col { grid-template-columns: 1fr; }
  .price-card { padding: 28px 24px; }
}

/* ================= v2 interactivity — black/white only, vanilla ================= */

/* scroll progress bar */
.progress-bar {
  position: fixed; top: 0; left: 0; height: 3px; width: 100%;
  background: var(--black); transform: scaleX(0); transform-origin: 0 50%;
  z-index: 60; pointer-events: none;
}

/* nav + footer animated underlines */
.nav a:not(.btn), .foot-links a { position: relative; }
.nav a:not(.btn)::after, .foot-links a::after {
  content: ""; position: absolute; left: 0; bottom: -4px; height: 2px; width: 100%;
  background: currentColor; transform: scaleX(0); transform-origin: 0 50%;
  transition: transform .25s ease;
}
.nav a:not(.btn):hover, .foot-links a:hover { text-decoration: none; }
.nav a:not(.btn):hover::after, .foot-links a:hover::after,
.nav a:not(.btn).active::after { transform: scaleX(1); }
.nav a:not(.btn).active { font-weight: 700; }

/* buttons: lift + sheen, ghost buttons fill-slide */
.btn {
  transition: transform .18s ease, background-color .22s ease, color .22s ease,
              box-shadow .22s ease, border-color .22s ease;
  position: relative; overflow: hidden;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,.20); }
.btn:active { transform: translateY(0); box-shadow: none; }
.btn.ghost::before, .btn.ghost-light::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  transform: scaleX(0); transform-origin: 0 50%; transition: transform .28s ease;
}
.btn.ghost { z-index: 0; }
.btn.ghost::before { background: var(--black); }
.btn.ghost:hover::before { transform: scaleX(1); }
.btn.ghost:hover { color: var(--white); }
.btn.ghost-light { z-index: 0; }
.btn.ghost-light::before { background: var(--white); }
.btn.ghost-light:hover::before { transform: scaleX(1); }
.btn.ghost-light:hover { color: var(--black); }

/* cards lift with border flip */
.card, .pillar, .guard-item, .price-card, .form-card {
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover, .pillar:hover, .form-card:hover {
  transform: translateY(-6px); border-color: var(--black);
  box-shadow: 0 16px 34px rgba(0,0,0,.12);
}
.guard-item:hover {
  transform: translateY(-4px); border-color: rgba(255,255,255,.85);
  box-shadow: 0 12px 28px rgba(0,0,0,.45);
}
.price-card:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(0,0,0,.14); }

/* steps: row highlight + number nudge */
.step { transition: background-color .22s ease; border-radius: 10px; padding-left: 14px; padding-right: 14px; }
.step::before { transition: transform .25s ease; }
.step:hover { background: #f5f5f5; }
.step:hover::before { transform: translateX(8px); }

/* checklist + table rows */
.checklist li { transition: transform .2s ease; }
.checklist li:hover { transform: translateX(6px); }
.spec-table tr { transition: background-color .2s ease; }
.spec-table tbody tr:hover, .spec-table tr:hover { background: #f5f5f5; }

/* arrow links slide */
.arrow-link .arr { display: inline-block; transition: transform .22s ease; }
.arrow-link:hover .arr { transform: translateX(7px); }

/* scroll reveal */
.reveal {
  opacity: 0; transform: translateY(26px);
  transition: opacity .6s ease, transform .65s cubic-bezier(.22,.61,.36,1);
  transition-delay: var(--rd, 0ms);
}
.reveal.in { opacity: 1; transform: none; }

/* faq: smooth open/close + rotating indicator */
.faq summary { transition: transform .2s ease; }
.faq summary:hover { transform: translateX(5px); }
.faq summary::after { content: "+"; transition: transform .3s ease; display: inline-block; }
.faq details[open] summary::after { content: "+"; transform: rotate(45deg); }
.faq .a { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .38s cubic-bezier(.22,.61,.36,1); }
.faq .a > p { overflow: hidden; min-height: 0; margin-top: 0; }
.faq details[open] .a { grid-template-rows: 1fr; }
.faq details[open] .a > p { margin-top: 12px; }

/* ---------- hero: copy + live chat demo ---------- */
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero-copy { min-width: 0; }
.hero-grid .hero-copy h1 { font-size: clamp(36px, 4.8vw, 62px); }
.chat-wrap { animation: floaty 7s ease-in-out infinite; }
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
.chat {
  background: var(--white); color: var(--ink);
  border-radius: 26px; border: 2px solid var(--white);
  box-shadow: 0 24px 60px rgba(0,0,0,.45);
  max-width: 360px; margin: 0 auto; overflow: hidden; cursor: default;
}
.chat-head {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 18px; border-bottom: 1px solid var(--line);
  font-size: 13px; font-weight: 800; letter-spacing: .02em;
}
.chat-head .dot { width: 10px; height: 10px; border-radius: 50%; background: #0a0a0a; animation: pulse 1.8s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: .4; transform: scale(.75); } }
.chat-body {
  height: 430px; overflow: hidden; padding: 18px 16px;
  display: flex; flex-direction: column; gap: 10px;
  transition: opacity .5s ease;
}
.chat-body.fade { opacity: 0; }
.bubble {
  max-width: 84%; padding: 10px 14px; border-radius: 16px;
  font-size: 14px; line-height: 1.45;
  opacity: 0; transform: translateY(10px) scale(.98);
  transition: opacity .35s ease, transform .35s cubic-bezier(.22,.61,.36,1);
}
.bubble.show { opacity: 1; transform: none; }
.bubble.lead { background: #f1f1f1; color: var(--ink); border-bottom-left-radius: 4px; align-self: flex-start; }
.bubble.asnd { background: var(--black); color: var(--white); border-bottom-right-radius: 4px; align-self: flex-end; }
.typing {
  display: inline-flex; gap: 5px; padding: 13px 16px; align-self: flex-start;
  background: #f1f1f1; border-radius: 16px; border-bottom-left-radius: 4px;
}
.typing span { width: 7px; height: 7px; border-radius: 50%; background: var(--black); animation: blink 1.1s infinite; }
.typing span:nth-child(2) { animation-delay: .18s; }
.typing span:nth-child(3) { animation-delay: .36s; }
@keyframes blink { 0%, 100% { opacity: .25; transform: translateY(0); } 50% { opacity: 1; transform: translateY(-3px); } }
.score-bar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 13px 18px; border-top: 1px solid var(--line);
  font-size: 13px; font-weight: 700;
}
.score-num { font-size: 22px; font-weight: 800; font-variant-numeric: tabular-nums; letter-spacing: -.02em; }
.hot-chip {
  display: inline-block; margin-left: 8px; font-size: 11px; font-weight: 800; letter-spacing: .08em;
  border: 2px solid var(--black); border-radius: 999px; padding: 3px 11px;
  opacity: 0; transform: scale(.8); transition: opacity .35s ease, transform .35s cubic-bezier(.34,1.56,.64,1), background-color .3s ease, color .3s ease;
}
.hot-chip.on { opacity: 1; transform: scale(1); background: var(--black); color: var(--white); }
.chat-cap { text-align: center; font-size: 13px; opacity: .65; margin-top: 14px; color: var(--white); }

/* responsive */
@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .chat { max-width: 380px; }
}

/* reduced motion: everything calm and visible */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
  .progress-bar { display: none; }
  .chat-wrap { animation: none; }
}

/* ================= demo page — interactive lead-qualification demo ================= */
.demo-hero .inner { padding: 72px 24px 60px; }

.biz-toggle {
  display: inline-flex; border: 2px solid var(--black); border-radius: 999px;
  padding: 4px; gap: 4px; margin-bottom: 34px; background: var(--white);
}
.biz-btn {
  border: 0; background: transparent; color: var(--black); font: inherit;
  font-weight: 700; font-size: 15px; padding: 10px 22px; border-radius: 999px;
  cursor: pointer; transition: background-color .22s ease, color .22s ease, transform .15s ease;
}
.biz-btn:hover { transform: translateY(-1px); }
.biz-btn.on { background: var(--black); color: var(--white); }

.demo-grid {
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: 40px; align-items: start;
}
.demo-chat { max-width: 430px; margin: 0; border-color: var(--black); box-shadow: 0 20px 50px rgba(0,0,0,.16); }
.demo-body { height: 400px; overflow-y: auto; overscroll-behavior: contain; }
.demo-note { text-align: center; font-size: 13px; opacity: .6; margin-top: 12px; }

.chip-row {
  display: flex; gap: 8px; overflow-x: auto; padding: 12px 14px 4px;
  scrollbar-width: none;
}
.chip-row::-webkit-scrollbar { display: none; }
.chip {
  flex: 0 0 auto; border: 1.5px solid var(--black); background: var(--white); color: var(--black);
  border-radius: 999px; padding: 8px 16px; font: inherit; font-size: 13.5px; font-weight: 600;
  cursor: pointer; transition: background-color .18s ease, color .18s ease, transform .15s ease;
  opacity: 0; transform: translateY(8px);
}
.chip.show { opacity: 1; transform: none; transition: opacity .3s ease, transform .3s ease, background-color .18s ease, color .18s ease; }
.chip:hover { background: var(--black); color: var(--white); transform: translateY(-2px); }
.chip:active { transform: translateY(0); }

.demo-input-row { display: flex; gap: 10px; padding: 12px 14px 16px; }
.demo-input-row input[type=text] { flex: 1; min-width: 0; }
.demo-input-row .btn { padding: 12px 18px; white-space: nowrap; }
.demo-input-row.disabled { opacity: .45; pointer-events: none; }

/* score panel */
.score-panel {
  border: 1px solid var(--line); border-radius: 14px; padding: 30px 28px;
  background: var(--white); position: sticky; top: 96px;
}
.score-hero { display: flex; align-items: baseline; gap: 6px; margin: 6px 0 14px; flex-wrap: wrap; }
.score-panel .score-num { font-size: 64px; font-weight: 800; letter-spacing: -.03em; font-variant-numeric: tabular-nums; line-height: 1; }
.score-max { font-size: 20px; font-weight: 600; opacity: .5; }
.score-panel .hot-chip { margin-left: 10px; }
.score-track {
  height: 12px; border-radius: 999px; background: #ececec; overflow: hidden; margin-bottom: 22px;
}
.score-fill {
  height: 100%; width: 0%; border-radius: 999px; background: var(--black);
  transition: width .8s cubic-bezier(.22,.61,.36,1);
}
.score-reasons { display: grid; gap: 8px; margin-bottom: 6px; min-height: 40px; }
.reason {
  font-size: 14px; font-weight: 600; border-left: 3px solid var(--black); padding: 6px 0 6px 12px;
  opacity: 0; transform: translateX(-10px);
  transition: opacity .35s ease, transform .35s cubic-bezier(.22,.61,.36,1);
}
.reason.show { opacity: 1; transform: none; }
.reason .pts { font-weight: 800; margin-right: 6px; }
.score-empty { font-size: 14px; opacity: .55; }

/* handoff alert card */
.alert-card {
  margin: 22px 0; border: 2px solid var(--black); border-radius: 12px; padding: 22px 20px;
  background: var(--white); box-shadow: 0 14px 34px rgba(0,0,0,.14);
  opacity: 0; transform: translateY(18px) scale(.98);
  transition: opacity .5s ease, transform .5s cubic-bezier(.22,.61,.36,1);
}
.alert-card.on { opacity: 1; transform: none; }
.alert-kicker {
  font-size: 12px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase;
  margin-bottom: 14px; padding-bottom: 10px; border-bottom: 1px solid var(--line);
}
.alert-rows { display: grid; gap: 8px; font-size: 15px; margin: 0 0 14px; }
.alert-rows div { display: grid; grid-template-columns: 92px 1fr; gap: 10px; }
.alert-rows dt { font-weight: 700; opacity: .65; }
.alert-rows dd { margin: 0; font-weight: 600; }
.alert-fine { font-size: 13px; opacity: .65; margin: 0; }
.score-panel .btn.ghost { width: 100%; margin-top: 8px; }

/* responsive */
@media (max-width: 920px) {
  .demo-grid { grid-template-columns: 1fr; }
  .demo-chat { margin: 0 auto; }
  .score-panel { position: static; }
}
@media (prefers-reduced-motion: reduce) {
  .chip, .reason, .alert-card { transition-duration: .01ms !important; }
  .chip, .reason.show, .alert-card.on { opacity: 1; transform: none; }
  .score-fill { transition: none; }
}