/* =====================================================================
   LLM Leads: premium-light design system
   Blend: ~48% Ramp, 20% Clerk, 17% Stripe, 16% Linear
   Hand-written, no framework. One signature accent (--accent).
   ===================================================================== */

:root {
  /* --- Palette --- */
  --canvas: #FAFAF6;        /* warm paper */
  --canvas-2: #F3F3EC;      /* slightly deeper band */
  --surface: #FFFFFF;       /* cards / raised */
  --ink: #14150E;           /* near-black, warm */
  --ink-soft: #34362B;
  --muted: #63665A;         /* secondary text */
  --faint: #8C8F82;         /* tertiary */
  --line: #E9E9DF;          /* hairline */
  --line-2: #DEDED2;        /* stronger hairline */
  --accent: #C6ED4A;        /* signature chartreuse */
  --accent-strong: #B2DE2A; /* hover */
  --accent-tint: #EEF7CC;   /* faint accent wash */
  --on-accent: #17200A;     /* text on accent */
  --dark: #16170F;          /* dark sections / footer */
  --dark-2: #1F2016;
  --dark-line: #33342A;
  --on-dark: #F3F3EA;
  --on-dark-muted: #A7A99A;

  /* --- Type --- */
  --font-display: 'Clash Display', 'Satoshi', system-ui, sans-serif;
  --font-text: 'Satoshi', system-ui, -apple-system, 'Segoe UI', sans-serif;

  /* --- Radius / shadow --- */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;
  --r-pill: 999px;
  --shadow-sm: 0 1px 2px rgba(20, 21, 14, .04), 0 1px 1px rgba(20, 21, 14, .03);
  --shadow-md: 0 12px 30px -12px rgba(20, 21, 14, .16), 0 2px 6px rgba(20, 21, 14, .04);
  --shadow-lg: 0 30px 60px -20px rgba(20, 21, 14, .22);

  /* --- Layout --- */
  --container: 1160px;
  --container-narrow: 760px;
  --gutter: clamp(20px, 5vw, 40px);
  --section-y: clamp(64px, 9vw, 128px);
}

/* =====================  Reset / base  ===================== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font-text);
  font-weight: 400;
  color: var(--ink);
  background-color: var(--canvas);
  /* subtle dot-grid canvas (Ramp signature), very faint */
  background-image: radial-gradient(rgba(20, 21, 14, .05) 1px, transparent 1px);
  background-size: 22px 22px;
  background-position: -1px -1px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: none; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; border-radius: 4px; }
::selection { background: var(--accent); color: var(--on-accent); }

/* =====================  Typography  ===================== */
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.06; letter-spacing: -0.02em; color: var(--ink); }
.h-display { font-size: clamp(2.6rem, 6.4vw, 4.6rem); font-weight: 600; letter-spacing: -0.03em; line-height: 1.02; }
h2, .h2 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); }
h3, .h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4, .h4 { font-size: 1.075rem; }
p { color: var(--ink-soft); }
.lead { font-size: clamp(1.075rem, 1.5vw, 1.3rem); color: var(--muted); line-height: 1.55; }
strong { font-weight: 700; color: var(--ink); }
small { font-size: .85rem; }

/* =====================  Layout helpers  ===================== */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.narrow { max-width: var(--container-narrow); margin-inline: auto; }
.section { padding-block: var(--section-y); }
.section-tight { padding-block: clamp(44px, 6vw, 80px); }
.band { background: var(--canvas-2); border-block: 1px solid var(--line); }
.center { text-align: center; }
.stack > * + * { margin-top: 1rem; }
.grid { display: grid; gap: clamp(16px, 2vw, 24px); }
.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .cols-3, .cols-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .cols-2, .cols-3, .cols-4 { grid-template-columns: 1fr; } }

/* =====================  Eyebrow / kicker  ===================== */
.eyebrow {
  display: inline-flex; align-items: center; gap: .5em;
  font-size: .78rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  color: var(--muted);
}
.eyebrow::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 3px var(--accent-tint); }
.section-head { max-width: 720px; }
.section-head .eyebrow { margin-bottom: 1rem; }
.section-head p { margin-top: .9rem; }
.center .section-head { margin-inline: auto; }

/* =====================  Buttons  ===================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  font-family: var(--font-text); font-weight: 700; font-size: .975rem; line-height: 1;
  padding: .85em 1.35em; border-radius: var(--r-pill);
  border: 1px solid transparent; transition: transform .12s ease, background .15s ease, box-shadow .15s ease, border-color .15s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: var(--on-accent); box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--accent-strong); box-shadow: var(--shadow-md); }
.btn-dark { background: var(--ink); color: var(--on-dark); }
.btn-dark:hover { background: #000; }
.btn-ghost { background: var(--surface); color: var(--ink); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--ink); }
.btn-lg { font-size: 1.05rem; padding: 1em 1.6em; }
.btn-block { width: 100%; }
.btn .arrow { transition: transform .15s ease; }
.btn:hover .arrow { transform: translateX(3px); }
/* on dark bg */
.on-dark .btn-ghost { background: transparent; color: var(--on-dark); border-color: var(--dark-line); }
.on-dark .btn-ghost:hover { border-color: var(--on-dark); }

/* =====================  Header / nav  ===================== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--canvas) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; gap: 1.5rem; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: .55rem; font-family: var(--font-display); font-weight: 600; font-size: 1.28rem; letter-spacing: -0.02em; }
.brand .mark {
  width: 30px; height: 30px; border-radius: 8px; background: var(--ink); color: var(--accent);
  display: grid; place-items: center; font-weight: 700; font-size: .95rem; letter-spacing: 0;
}
.brand .mark span { transform: translateY(-.5px); }
.nav-links { display: flex; align-items: center; gap: 1.35rem; margin-left: .5rem; }
.nav-links a { font-size: .95rem; font-weight: 500; color: var(--ink-soft); transition: color .15s ease; }
.nav-links a:hover { color: var(--ink); }
.nav-spacer { margin-left: auto; }
.nav-cta { display: flex; align-items: center; gap: .75rem; }
.nav-phone { font-weight: 600; font-size: .95rem; }
.nav-toggle { display: none; }
@media (max-width: 900px) {
  .nav-links, .nav-cta .btn-secondary-hide { display: none; }
  .nav-toggle { display: inline-flex; margin-left: auto; padding: .5rem; }
  .nav-cta { margin-left: 0; }
}

/* =====================  Hero  ===================== */
.hero { position: relative; padding-top: clamp(48px, 7vw, 96px); padding-bottom: var(--section-y); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
@media (max-width: 980px) { .hero-grid { grid-template-columns: 1fr; gap: 40px; } }
.hero h1 { margin-top: 1.4rem; }
.hero .lead { margin-top: 1.4rem; max-width: 34ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }
.hero-trust { margin-top: 1.8rem; display: flex; align-items: center; gap: .7rem; color: var(--muted); font-size: .9rem; }
.hero-trust .dots { display: inline-flex; }
.hero-trust .dots span { width: 26px; height: 26px; border-radius: 50%; border: 2px solid var(--canvas); background: var(--canvas-2); margin-left: -8px; display: grid; place-items: center; font-size: .7rem; }
.hero-trust .dots span:first-child { margin-left: 0; }

/* Hero visual: AI answer mock */
.answer-card {
  background: var(--surface); border: 1px solid var(--line-2); border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg); padding: 1.4rem; position: relative;
}
.answer-card .prompt { display: flex; gap: .7rem; align-items: flex-start; padding-bottom: 1.1rem; border-bottom: 1px solid var(--line); }
.answer-card .avatar { flex: none; width: 30px; height: 30px; border-radius: 50%; background: var(--canvas-2); display: grid; place-items: center; font-size: .8rem; border: 1px solid var(--line); }
.answer-card .prompt p { font-weight: 500; color: var(--ink); }
.answer-card .answer { padding-top: 1.1rem; display: flex; gap: .7rem; }
.answer-card .answer .ai { flex: none; width: 30px; height: 30px; border-radius: 8px; background: var(--ink); color: var(--accent); display: grid; place-items: center; font-size: .78rem; font-weight: 700; }
.answer-card .answer-body { font-size: .96rem; color: var(--ink-soft); }
.answer-card .answer-body .named { background: var(--accent); color: var(--on-accent); font-weight: 700; padding: 0 .28em; border-radius: 5px; box-decoration-break: clone; -webkit-box-decoration-break: clone; }
.answer-card .cite { margin-top: .8rem; display: inline-flex; align-items: center; gap: .4rem; font-size: .78rem; color: var(--faint); }
.answer-card .cite b { color: var(--muted); font-weight: 600; }
.answer-float {
  position: absolute; right: -14px; bottom: -18px; background: var(--surface); border: 1px solid var(--line-2);
  border-radius: var(--r-md); box-shadow: var(--shadow-md); padding: .7rem .9rem; display: flex; align-items: center; gap: .6rem;
}
.answer-float .tick { width: 24px; height: 24px; border-radius: 50%; background: var(--accent); color: var(--on-accent); display: grid; place-items: center; font-weight: 800; font-size: .8rem; }
.answer-float b { font-size: .82rem; }
.answer-float small { display: block; color: var(--faint); font-size: .72rem; }
@media (max-width: 980px) { .answer-float { right: 8px; } }

/* =====================  Logo / trust strip  ===================== */
.logostrip { display: flex; align-items: center; justify-content: center; gap: clamp(1.5rem, 4vw, 3.2rem); flex-wrap: wrap; }
.logostrip .label { font-size: .82rem; color: var(--faint); font-weight: 500; }
.logostrip .engine { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; color: var(--muted); opacity: .85; letter-spacing: -0.01em; }

/* =====================  Cards / features  ===================== */
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md);
  padding: 1.5rem; transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
}
.card.hover:hover { border-color: var(--line-2); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.card .ico { width: 42px; height: 42px; border-radius: 11px; background: var(--accent-tint); border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--line)); display: grid; place-items: center; color: var(--ink); margin-bottom: 1.1rem; }
.card h3 { font-size: 1.18rem; }
.card p { margin-top: .5rem; font-size: .95rem; color: var(--muted); }
.card .more { margin-top: 1rem; display: inline-flex; align-items: center; gap: .35rem; font-weight: 600; font-size: .9rem; color: var(--ink); }
.card .more .arrow { transition: transform .15s ease; }
.card.hover:hover .more .arrow { transform: translateX(3px); }

/* link list card (silo hub links) */
.linklist { display: grid; gap: .1rem; }
.linklist a { display: flex; align-items: center; justify-content: space-between; padding: .8rem 0; border-bottom: 1px solid var(--line); font-weight: 500; color: var(--ink-soft); transition: color .15s ease, padding .15s ease; }
.linklist a:last-child { border-bottom: 0; }
.linklist a:hover { color: var(--ink); padding-left: .35rem; }
.linklist a .arrow { color: var(--faint); }

/* =====================  Steps / how it works  ===================== */
.steps { counter-reset: step; display: grid; gap: 1.25rem; }
.step { display: grid; grid-template-columns: auto 1fr; gap: 1.1rem; align-items: start; }
.step .num { counter-increment: step; width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line-2); display: grid; place-items: center; font-family: var(--font-display); font-weight: 600; }
.step .num::before { content: counter(step, decimal-leading-zero); }
.step h3 { font-size: 1.15rem; }
.step p { margin-top: .3rem; color: var(--muted); font-size: .95rem; }

/* =====================  Stats  ===================== */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(20px, 4vw, 48px); }
@media (max-width: 620px) { .stats { grid-template-columns: 1fr; } }
.stat .n { font-family: var(--font-display); font-weight: 600; font-size: clamp(2.4rem, 5vw, 3.4rem); letter-spacing: -0.03em; line-height: 1; }
.stat .n .accent { color: color-mix(in srgb, var(--accent-strong) 92%, var(--ink)); }
.stat p { margin-top: .5rem; color: var(--muted); font-size: .95rem; }

/* =====================  CTA band (dark)  ===================== */
.cta-band { background: var(--dark); color: var(--on-dark); border-radius: var(--r-lg); padding: clamp(2.2rem, 5vw, 3.6rem); position: relative; overflow: hidden; }
.cta-band::after { content: ""; position: absolute; inset: 0; background-image: radial-gradient(rgba(255,255,255,.05) 1px, transparent 1px); background-size: 22px 22px; opacity: .6; pointer-events: none; }
.cta-band h2 { color: var(--on-dark); position: relative; }
.cta-band p { color: var(--on-dark-muted); position: relative; margin-top: .8rem; max-width: 46ch; }
.cta-band .hero-actions { position: relative; }
.cta-band .btn-primary { color: var(--on-accent); }

/* =====================  FAQ  ===================== */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; padding: 1.25rem 0; display: flex; justify-content: space-between; align-items: center; gap: 1rem; font-family: var(--font-display); font-weight: 600; font-size: 1.1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .plus { flex: none; width: 26px; height: 26px; border-radius: 50%; border: 1px solid var(--line-2); display: grid; place-items: center; transition: transform .2s ease, background .2s ease; }
.faq details[open] summary .plus { transform: rotate(45deg); background: var(--accent); border-color: var(--accent); }
.faq .answer { padding: 0 0 1.35rem; color: var(--muted); max-width: 70ch; }

/* =====================  Breadcrumbs  ===================== */
.crumbs { display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; font-size: .85rem; color: var(--faint); padding-top: 1.5rem; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--ink); }
.crumbs .sep { color: var(--line-2); }

/* =====================  Prose (content pages)  ===================== */
.prose { max-width: 72ch; }
.prose h2 { margin-top: 2.6rem; }
.prose h3 { margin-top: 1.8rem; }
.prose p { margin-top: 1rem; color: var(--ink-soft); }
.prose a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--accent-strong); text-underline-offset: 3px; text-decoration-thickness: 2px; font-weight: 500; }
.prose a:hover { background: var(--accent-tint); }
.prose ul { margin-top: 1rem; padding-left: 1.2rem; }
.prose li { margin-top: .4rem; color: var(--ink-soft); }
/* semantic attribute / step / prompt lists */
.prose .attr-list { list-style: none; margin-top: 1.35rem; padding-left: 0; display: grid; gap: .6rem; }
.prose .attr-list li { position: relative; margin-top: 0; padding: .8rem 1rem .8rem 2.3rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); font-size: .96rem; line-height: 1.55; }
.prose .attr-list li::before { content: ""; position: absolute; left: .95rem; top: 1.2rem; width: .5rem; height: .5rem; border-radius: 2px; background: var(--accent-strong); }
.prose .attr-list li strong { color: var(--ink); font-weight: 600; }
.prose .attr-list li a { font-weight: 500; }

/* =====================  Footer  ===================== */
.site-footer { background: var(--dark); color: var(--on-dark-muted); padding-block: clamp(48px, 7vw, 80px) 2rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(4, 1fr); gap: 2rem; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer .brand { color: var(--on-dark); }
.site-footer .brand .mark { background: var(--accent); color: var(--ink); }
.footer-about p { margin-top: 1rem; font-size: .92rem; max-width: 32ch; }
.footer-col h4 { color: var(--on-dark); font-family: var(--font-text); font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 1rem; }
.footer-col a { display: block; padding: .32rem 0; font-size: .92rem; color: var(--on-dark-muted); transition: color .15s ease; }
.footer-col a:hover { color: var(--on-dark); }
.footer-bottom { margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--dark-line); display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; font-size: .85rem; }

/* =====================  Utilities  ===================== */
.pill-tag { display: inline-flex; align-items: center; gap: .4rem; font-size: .8rem; font-weight: 600; padding: .3rem .7rem; border-radius: var(--r-pill); background: var(--accent-tint); color: var(--ink); border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--line)); }
.muted { color: var(--muted); }
.mt-0 { margin-top: 0; }
.hide { display: none !important; }
.skip-link { position: absolute; left: -9999px; top: 0; background: var(--ink); color: var(--on-dark); padding: .6rem 1rem; border-radius: 0 0 8px 0; z-index: 100; }
.skip-link:focus { left: 0; }

/* =====================  Mobile nav  ===================== */
.nav-toggle svg { display: block; pointer-events: none; }
.mobile-nav { display: none; }
@media (max-width: 900px) {
  .menu-open { overflow: hidden; }
  .nav-cta { display: none; }
  .mobile-nav {
    display: block; position: fixed; inset: 68px 0 0; background: var(--canvas);
    border-top: 1px solid var(--line); padding: var(--gutter); z-index: 49;
    transform: translateY(-8px); opacity: 0; visibility: hidden; overflow-y: auto;
    transition: opacity .18s ease, transform .18s ease, visibility .18s;
  }
  .menu-open .mobile-nav { opacity: 1; transform: none; visibility: visible; }
  .mobile-nav a { display: block; padding: .95rem 0; font-family: var(--font-display); font-weight: 600; font-size: 1.3rem; border-bottom: 1px solid var(--line); }
  .mobile-nav .btn { margin-top: 1.3rem; width: 100%; font-size: 1.05rem; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}

/* =====================  Content pages  ===================== */
.page-intro { max-width: 54rem; }
.page-title { font-family: var(--font-display); font-weight: 600; letter-spacing: -0.025em; line-height: 1.05; font-size: clamp(2rem, 4.4vw, 3.2rem); margin-top: 1rem; }
.content-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: clamp(28px, 5vw, 64px); align-items: start; padding-bottom: clamp(24px, 4vw, 48px); }
.content-aside { position: sticky; top: 92px; }
.aside-cta { background: var(--surface); box-shadow: var(--shadow-sm); }
.page-hub .card h3, .page .card h3 { margin: 0; }
@media (max-width: 900px) {
  .content-grid { grid-template-columns: 1fr; }
  .content-aside { position: static; max-width: 420px; }
}

/* =====================  Accessibility helpers  ===================== */
.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: 2px solid var(--accent-strong); outline-offset: 2px; }
.on-dark :focus-visible, .cta-band :focus-visible { outline-color: var(--accent); }
img, svg, video { max-width: 100%; height: auto; }

/* =====================  Lead form  ===================== */
.lead-form-wrap { max-width: 820px; margin: 1.7rem auto 0; text-align: center; }
.lead-form { text-align: center; }
.lead-fields { display: grid; gap: .65rem; grid-template-columns: 1fr; max-width: 560px; margin-inline: auto; text-align: left; }
.lead-form input { width: 100%; padding: .85rem 1rem; border-radius: var(--r-md); border: 1px solid var(--line-2); background: var(--surface); color: var(--ink); font: inherit; font-size: 1rem; -webkit-appearance: none; appearance: none; }
.lead-form input::placeholder { color: var(--muted); }
.lead-form .btn { width: 100%; }
.lead-fields > .btn { min-height: 52px; }
.lead-form-note { margin-top: .85rem; font-size: .88rem; color: var(--muted); }
.lead-form.on-dark .lead-form-note { color: var(--on-dark-muted); }
/* LeadSimplify embedded form */
.ls-form-wrap { max-width: 560px; margin: 0 auto; background: #fff; border-radius: var(--r-lg); overflow: hidden; box-shadow: 0 12px 34px rgba(20, 21, 14, .16); }
.ls-embed { display: block; width: 100%; border: 0; }
.lead-form-note.on-dark { color: var(--on-dark-muted); }
.lead-form-status { margin-top: .9rem; font-size: .95rem; font-weight: 600; padding: .65rem .95rem; border-radius: var(--r-md); display: inline-block; }
.lead-form-status.is-good { background: var(--accent-tint); color: var(--on-accent); }
.lead-form-status.is-bad { background: #fdecec; color: #9b1c1c; }
.hp { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
@media (min-width: 680px) {
  .lead-fields { grid-template-columns: repeat(3, 1fr); max-width: 820px; }
  .lead-fields > .btn { grid-column: 1 / -1; }
}

/* =====================  Subtle scroll reveal (JS-gated, below-fold only)  ===================== */
.is-reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
.is-reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .is-reveal { opacity: 1 !important; transform: none !important; } }