:root {
  --ink: #14181d;
  --ink-soft: #3a434d;
  --muted: #6b7682;
  --line: #e3e1da;
  --paper: #faf8f3;
  --card: #ffffff;
  --navy: #16202b;
  --accent: #c2502b;       /* warm industrial rust */
  --accent-deep: #a23f20;
  --good: #2f6b4f;
  --shadow: 0 1px 2px rgba(20,24,29,.04), 0 12px 32px -12px rgba(20,24,29,.18);
  --radius: 14px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { overflow-x: hidden; max-width: 100%; }
h1, h2, h3 { overflow-wrap: break-word; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
h1, h2, h3 { font-family: "Fraunces", Georgia, serif; font-weight: 600; line-height: 1.08; letter-spacing: -0.01em; }
a { color: inherit; }
em { font-style: italic; color: var(--accent); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font: inherit; font-weight: 500; padding: .72rem 1.25rem; border-radius: 999px;
  border: 1px solid transparent; cursor: pointer; text-decoration: none; transition: .18s ease; }
.btn-solid { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-solid:hover { background: var(--accent-deep); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink); }
.btn-sm { padding: .5rem .95rem; font-size: .92rem; }
.btn-lg { padding: .95rem 1.7rem; font-size: 1.05rem; }
.nav-cta { display: none; }

/* Nav */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(250,248,243,.82);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { font-family: "Fraunces", serif; font-weight: 600; font-size: 1.35rem; text-decoration: none; letter-spacing: -.02em; }
.brand-dot { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 1.6rem; }
.nav-links a { text-decoration: none; color: var(--ink-soft); font-size: .96rem; }
.nav-links a:hover { color: var(--ink); }

/* Hero */
.hero { padding: 84px 24px 56px; }
.hero-copy { max-width: 760px; }
.eyebrow { text-transform: uppercase; letter-spacing: .14em; font-size: .76rem; font-weight: 600;
  color: var(--accent); margin-bottom: 1.1rem; }
.hero h1 { font-size: clamp(2.7rem, 6vw, 4.4rem); margin: 0 0 1.2rem; }
.lede { font-size: 1.24rem; color: var(--ink-soft); max-width: 600px; margin: 0 0 1.9rem; }
.hero-cta { display: flex; gap: .8rem; flex-wrap: wrap; }
.hero-note { color: var(--muted); font-size: .9rem; margin-top: 1rem; }

/* Demo */
.demo { padding: 28px 24px 72px; }
.demo-head { max-width: 720px; margin-bottom: 1.6rem; }
.demo-tag { display: inline-block; font-size: .76rem; font-weight: 600; letter-spacing: .08em;
  text-transform: uppercase; color: var(--good); background: #e8f0ea; border: 1px solid #cfe0d5;
  padding: .3rem .7rem; border-radius: 999px; margin-bottom: 1rem; }
.demo-head h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); margin: 0 0 .6rem; }
.demo-head p { color: var(--ink-soft); margin: 0; }
.demo-panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 22px; }
.ask-bar { display: flex; gap: .6rem; }
.ask-bar input { flex: 1; font: inherit; padding: .85rem 1rem; border: 1px solid var(--line);
  border-radius: 10px; background: #fff; outline: none; transition: .15s; }
.ask-bar input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(194,80,43,.12); }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: .9rem; }
.chip { font: inherit; font-size: .87rem; color: var(--ink-soft); background: var(--paper);
  border: 1px solid var(--line); padding: .42rem .8rem; border-radius: 999px; cursor: pointer; transition: .15s; }
.chip:hover { border-color: var(--accent); color: var(--ink); }

/* Demo tabs */
.demo-tabs { display: flex; gap: .5rem; margin-bottom: 1.4rem; flex-wrap: wrap; }
.tab { font: inherit; font-weight: 500; color: var(--ink-soft); background: var(--card);
  border: 1px solid var(--line); padding: .6rem 1.05rem; border-radius: 10px; cursor: pointer;
  transition: .15s; display: inline-flex; gap: .5rem; align-items: baseline; }
.tab span { font-size: .76rem; color: var(--muted); font-weight: 450; }
.tab:hover { border-color: var(--accent); }
.tab.is-active { background: var(--navy); color: #fff; border-color: var(--navy); }
.tab.is-active span { color: #9fb0bf; }

/* RAG (long-document) answer */
.rag-answer { font-size: 1.02rem; color: var(--ink); line-height: 1.7; }
.rag-answer p { margin: 0 0 .8rem; }
.rag-answer p:last-child { margin-bottom: 0; }

/* Answer */
.answer { margin-top: 1.4rem; border-top: 1px solid var(--line); padding-top: 1.3rem; }
.answer.loading { color: var(--muted); }
.ans-head { font-size: 1.12rem; font-weight: 600; margin: 0 0 1rem; color: var(--ink); }
.ans-count { color: var(--accent); }
.ans-table { width: 100%; border-collapse: collapse; font-size: .94rem; }
.ans-table th { text-align: left; font-weight: 600; color: var(--muted); font-size: .78rem;
  text-transform: uppercase; letter-spacing: .05em; padding: 0 .8rem .5rem; border-bottom: 1px solid var(--line); }
.ans-table td { padding: .6rem .8rem; border-bottom: 1px solid #f0eee7; vertical-align: top; }
.ans-table tr:last-child td { border-bottom: none; }
.ans-mfr { font-weight: 550; }
.tag-clean { display: inline-block; font-size: .76rem; padding: .12rem .55rem; border-radius: 999px;
  background: #eef1f4; color: var(--ink-soft); white-space: nowrap; }
.cite { display: inline-flex; align-items: center; gap: .3rem; font-size: .8rem; text-decoration: none;
  color: var(--accent-deep); border: 1px solid #ecd8cf; background: #fbf2ee; padding: .12rem .5rem;
  border-radius: 6px; white-space: nowrap; }
.cite:hover { background: #f6e6df; }
.sources { margin-top: 1.1rem; display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; }
.sources .src-label { font-size: .8rem; color: var(--muted); margin-right: .2rem; }
.bar { height: 7px; background: #f0eee7; border-radius: 999px; overflow: hidden; min-width: 60px; }
.bar > span { display: block; height: 100%; background: var(--accent); }
.rank-row { display: grid; grid-template-columns: 1fr 90px 38px; gap: .8rem; align-items: center;
  padding: .45rem 0; border-bottom: 1px solid #f0eee7; font-size: .95rem; }
.rank-row:last-child { border-bottom: none; }
.rank-row .n { text-align: right; font-variant-numeric: tabular-nums; color: var(--muted); }

/* Bands & sections */
.band { background: var(--navy); color: #eef0f2; margin-top: 8px; padding: 72px 0; }
.band-title { color: #fff; }
.pain-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
.pain-grid h2 { font-size: clamp(1.7rem,3.4vw,2.3rem); margin: 0 0 1.4rem; }
.pain-list { list-style: none; padding: 0; margin: 0; }
.pain-list li { padding: .55rem 0 .55rem 1.7rem; position: relative; color: #c6cdd4; border-bottom: 1px solid #243240; }
.pain-list li::before { content: "✕"; position: absolute; left: 0; color: var(--accent); font-size: .85rem; }
.pain-answer p { font-size: 1.25rem; margin: 0 0 .6rem; color: #d8dde2; }
.pain-punch { font-family: "Fraunces", serif; font-size: 1.6rem !important; color: #fff !important; line-height: 1.25; }

.how { padding: 76px 24px; }
.center-title { text-align: center; }
.how h2 { font-size: clamp(1.8rem,3.6vw,2.4rem); margin: 0 0 2.4rem; }
.steps { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.step { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.step-n { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%;
  background: var(--accent); color: #fff; font-weight: 600; font-family: "Fraunces",serif; margin-bottom: 1rem; }
.step h3 { font-size: 1.18rem; margin: 0 0 .5rem; }
.step p { color: var(--ink-soft); margin: 0; font-size: .96rem; }

.who { text-align: center; }
.who .band-title { font-size: clamp(1.7rem,3.4vw,2.2rem); margin: 0 0 1.8rem; }
.who-tags { display: flex; flex-wrap: wrap; gap: .6rem; justify-content: center; max-width: 760px; margin: 0 auto; }
.who-tags span { border: 1px solid #2c3a48; color: #d8dde2; padding: .5rem 1rem; border-radius: 999px; font-size: .95rem; }
.who-note { color: #97a3ad; margin-top: 1.6rem; }

.offer { padding: 84px 24px; }
.offer-card { background: var(--card); border: 1px solid var(--line); border-radius: 20px;
  box-shadow: var(--shadow); padding: 52px; text-align: center; max-width: 720px; margin: 0 auto; }
.offer-card h2 { font-size: clamp(1.9rem,4vw,2.6rem); margin: 0 0 1rem; }
.offer-card p { color: var(--ink-soft); max-width: 520px; margin: 0 auto 1.8rem; font-size: 1.1rem; }
.offer-alt { font-size: .95rem !important; color: var(--muted) !important; margin-top: 1.4rem !important; }
.offer-alt a { color: var(--accent-deep); }

.footer { border-top: 1px solid var(--line); padding: 28px 0; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; font-size: .9rem; }
.muted { color: var(--muted); }

@media (max-width: 760px) {
  body { font-size: 16px; }
  .nav-links a:not(.btn) { display: none; }
  .pain-grid, .steps { grid-template-columns: 1fr; }
  .offer-card { padding: 32px 22px; }
  .ans-table thead { display: none; }
  .ans-table, .ans-table tbody, .ans-table tr, .ans-table td { display: block; width: 100%; }
  .ans-table tr { border: 1px solid var(--line); border-radius: 10px; margin-bottom: .7rem; padding: .4rem .2rem; }
  .ans-table td { border: none; padding: .25rem .8rem; }
}