/* ============================================================
   FirstCall AI — "Signal" design system
   Tokens live here; see DESIGN.md for the source of truth.
   ============================================================ */
:root{
  --base:#FBFAF8; --base-2:#F3F1EC; --surface:#FFFFFF;
  --ink:#16181D; --muted:#54585F; --faint:#8A8F97;
  --line:#E7E4DE; --line-2:#EFECE6;
  --accent:#FF5A1F; --accent-ink:#E24A12; --accent-wash:rgba(255,90,31,.08);
  --ok:#1F9D57;
  --font-display:'Space Grotesk',sans-serif;
  --font-body:'Instrument Sans',sans-serif;
  --font-mono:'IBM Plex Mono',monospace;
  --wrap:1120px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  background:var(--base); color:var(--ink);
  font-size:17px; line-height:1.6;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
}
a{color:inherit; text-decoration:none}
img{max-width:100%; display:block}

/* ---------- layout helpers ---------- */
.wrap{max-width:var(--wrap); margin:0 auto; padding:0 28px}
.section{padding:104px 0}
.section--alt{background:var(--base-2); border-block:1px solid var(--line)}
.eyebrow{
  font-family:var(--font-mono); font-size:12px; font-weight:500;
  letter-spacing:.14em; text-transform:uppercase; color:var(--accent);
  display:inline-block; margin-bottom:18px;
}
.caption{font-family:var(--font-mono); font-size:12.5px; letter-spacing:.03em; color:var(--faint)}
h1,h2,h3{font-family:var(--font-display); letter-spacing:-.02em; line-height:1.06; font-weight:700}
h2{font-size:clamp(26px,3.4vw,38px); line-height:1.1}
h3{font-size:20px; letter-spacing:-.01em}
.lead{font-size:19px; color:var(--muted); line-height:1.55; max-width:56ch}
.section-head{max-width:60ch; margin-bottom:56px}
.section-head p{color:var(--muted); margin-top:14px}

/* ---------- buttons ---------- */
.btn{
  font-family:var(--font-display); font-weight:600; font-size:15px;
  display:inline-flex; align-items:center; gap:9px; cursor:pointer;
  border:none; border-radius:7px; padding:13px 22px; transition:.18s ease;
  line-height:1;
}
.btn--primary{background:var(--accent); color:#fff}
.btn--primary:hover{background:var(--accent-ink)}
.btn--ghost{background:var(--ink); color:var(--base)}
.btn--ghost:hover{background:#000}
.btn--link{background:none; color:var(--ink); padding:13px 4px; border-bottom:2px solid var(--ink); border-radius:0}
.btn--link:hover{color:var(--accent); border-color:var(--accent)}
.btn .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);animation:pulse 2s infinite}
.btn--primary .dot{background:#fff}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(255,90,31,.55)}70%{box-shadow:0 0 0 7px rgba(255,90,31,0)}100%{box-shadow:0 0 0 0 rgba(255,90,31,0)}}

/* ============================================================
   HEADER / NAV
   ============================================================ */
.nav{
  position:sticky; top:0; z-index:40; background:rgba(251,250,248,.82);
  backdrop-filter:blur(10px); border-bottom:1px solid var(--line);
}
.nav__in{display:flex; align-items:center; justify-content:space-between; height:70px}
.brand{font-family:var(--font-display); font-weight:700; font-size:20px; letter-spacing:-.02em}
.brand .accent{color:var(--accent)}
.nav__links{display:flex; gap:34px; align-items:center}
.nav__links a{font-size:15px; color:var(--muted); transition:.15s}
.nav__links a:hover{color:var(--ink)}
.nav__cta{display:flex; align-items:center; gap:18px}
.nav__toggle{display:none}

/* ============================================================
   HERO
   ============================================================ */
.hero{padding:78px 0 92px}
.hero__grid{display:grid; grid-template-columns:1.05fr .95fr; gap:64px; align-items:center}
.hero h1{font-size:clamp(36px,5vw,58px)}
.hero .lead{margin:24px 0 34px}
.hero__cta{display:flex; align-items:center; gap:20px; flex-wrap:wrap}
.hero__trust{margin-top:34px; display:flex; gap:26px; flex-wrap:wrap; color:var(--faint)}
.hero__trust span{font-family:var(--font-mono); font-size:12.5px; letter-spacing:.02em; display:flex; align-items:center; gap:8px}
.hero__trust span::before{content:""; width:5px; height:5px; border-radius:50%; background:var(--accent)}

/* live call panel (signature element) */
.callpanel{
  background:var(--surface); border:1px solid var(--line); border-radius:14px;
  padding:22px; box-shadow:0 1px 2px rgba(0,0,0,.04);
}
.callpanel__top{display:flex; justify-content:space-between; align-items:center; margin-bottom:16px}
.callpanel__who{display:flex; align-items:center; gap:10px; font-family:var(--font-mono); font-size:12px; color:var(--muted); letter-spacing:.02em}
.callpanel__who .ring{width:9px;height:9px;border-radius:50%;background:var(--accent);animation:pulse 2s infinite}
.callpanel__timer{font-family:var(--font-mono); font-size:12px; color:var(--accent)}
.bars{display:flex; align-items:center; gap:3px; height:52px; margin-bottom:18px}
.bars span{flex:1; background:var(--accent); border-radius:2px; opacity:.9; transform-origin:center; animation:eq 1.1s ease-in-out infinite}
@keyframes eq{0%,100%{transform:scaleY(.22)}50%{transform:scaleY(1)}}
.transcript{display:flex; flex-direction:column; gap:12px}
.tline{display:flex; gap:12px; font-size:14.5px; line-height:1.5}
.tline .spk{font-family:var(--font-mono); font-size:10.5px; letter-spacing:.06em; text-transform:uppercase; color:var(--faint); min-width:70px; padding-top:3px}
.tline.ai .spk{color:var(--accent)}
.tline .txt{color:var(--ink)}
.tline.home .txt{color:var(--muted)}
.callpanel__foot{margin-top:18px; padding-top:16px; border-top:1px solid var(--line-2); display:flex; align-items:center; gap:8px}
.badge-ok{display:inline-flex; align-items:center; gap:7px; font-family:var(--font-mono); font-size:12px; color:var(--ok)}
.badge-ok::before{content:"✓"; font-size:13px}

/* ============================================================
   LOGO / SOCIAL PROOF STRIP
   ============================================================ */
.strip{padding:30px 0; border-bottom:1px solid var(--line)}
.strip__in{display:flex; align-items:center; gap:32px; flex-wrap:wrap; justify-content:center}
.strip p{font-family:var(--font-mono); font-size:12px; letter-spacing:.04em; color:var(--faint); text-transform:uppercase}
.strip .metric{font-family:var(--font-display); font-weight:600; color:var(--ink); font-size:15px}
.strip .metric b{color:var(--accent); font-weight:700}

/* ============================================================
   THE LEAK (problem)
   ============================================================ */
.leak__grid{display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center}
.bignum{font-family:var(--font-display); font-weight:700; font-size:clamp(64px,9vw,104px); line-height:.9; letter-spacing:-.04em; color:var(--ink)}
.bignum .u{display:block; font-size:20px; font-weight:600; letter-spacing:-.01em; color:var(--muted); margin-top:16px; max-width:26ch}
.story{background:var(--surface); border:1px solid var(--line); border-left:3px solid var(--accent); border-radius:10px; padding:26px 28px}
.story__q{font-family:var(--font-display); font-weight:600; font-size:20px; line-height:1.35; letter-spacing:-.01em}
.story__src{margin-top:14px; color:var(--faint); font-family:var(--font-mono); font-size:12px}
.leakstats{display:grid; grid-template-columns:repeat(3,1fr); gap:22px; margin-top:56px}
.stat{border-top:1px solid var(--line); padding-top:18px}
.stat .n{font-family:var(--font-display); font-weight:700; font-size:34px; letter-spacing:-.02em}
.stat .n .accent{color:var(--accent)}
.stat .l{color:var(--muted); font-size:14.5px; margin-top:6px; line-height:1.4}

/* ============================================================
   HOW IT WORKS (genuine sequence -> numbered)
   ============================================================ */
.steps{display:grid; grid-template-columns:repeat(3,1fr); gap:28px}
.step{background:var(--surface); border:1px solid var(--line); border-radius:12px; padding:28px}
.step__n{font-family:var(--font-mono); font-size:12px; color:var(--accent); letter-spacing:.06em; margin-bottom:20px; display:flex; align-items:center; gap:10px}
.step__n::after{content:""; flex:1; height:1px; background:var(--line)}
.step h3{margin-bottom:10px}
.step p{color:var(--muted); font-size:15.5px}
.step__meta{margin-top:18px; font-family:var(--font-mono); font-size:11.5px; color:var(--faint); letter-spacing:.02em}

/* ============================================================
   WHAT IT DOES (features)
   ============================================================ */
.feat{display:grid; grid-template-columns:repeat(2,1fr); gap:0; border:1px solid var(--line); border-radius:12px; overflow:hidden; background:var(--surface)}
.feat__cell{padding:30px 30px; border-right:1px solid var(--line); border-bottom:1px solid var(--line)}
.feat__cell:nth-child(2n){border-right:none}
.feat__cell:nth-last-child(-n+2){border-bottom:none}
.feat__cell h3{font-size:17px; margin-bottom:9px; display:flex; align-items:center; gap:10px}
.feat__cell h3::before{content:""; width:8px; height:8px; background:var(--accent); border-radius:2px; flex:none}
.feat__cell p{color:var(--muted); font-size:15px}

/* ============================================================
   OFFER (grand slam)
   ============================================================ */
.offer{background:var(--ink); color:#F4F2EE; border-radius:16px; padding:64px 56px; text-align:center}
.offer .eyebrow{color:var(--accent)}
.offer h2{color:#fff; max-width:22ch; margin:0 auto 22px}
.offer h2 .accent{color:var(--accent)}
.offer p{color:#B9BAC0; max-width:52ch; margin:0 auto 34px; font-size:17px}
.offer__cta{display:flex; gap:18px; justify-content:center; align-items:center; flex-wrap:wrap}
.offer .btn--link{color:#fff; border-color:#41444b}
.offer .btn--link:hover{color:var(--accent); border-color:var(--accent)}
.offer__fine{margin-top:26px; font-family:var(--font-mono); font-size:12px; color:#7f828a; letter-spacing:.02em}

/* ============================================================
   WHO IT'S FOR
   ============================================================ */
.fit{display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:start}
.fitlist{list-style:none; display:flex; flex-direction:column; gap:16px}
.fitlist li{display:flex; gap:14px; font-size:16.5px; align-items:baseline}
.fitlist li::before{content:"✓"; color:var(--ok); font-weight:700; font-family:var(--font-mono)}
.notfit{background:var(--base-2); border:1px solid var(--line); border-radius:12px; padding:28px}
.notfit p{color:var(--faint); font-family:var(--font-mono); font-size:11.5px; text-transform:uppercase; letter-spacing:.06em; margin-bottom:16px}
.notfit ul{list-style:none; display:flex; flex-direction:column; gap:12px}
.notfit li{display:flex; gap:12px; color:var(--muted); font-size:15px; align-items:baseline}
.notfit li::before{content:"—"; color:var(--faint)}

/* ============================================================
   FOOTER + FINAL CTA
   ============================================================ */
.final{text-align:center; padding:104px 0}
.final h2{max-width:20ch; margin:0 auto 18px}
.final p{color:var(--muted); max-width:48ch; margin:0 auto 32px}
.footer{border-top:1px solid var(--line); padding:44px 0}
.footer__in{display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:18px}
.footer .brand{font-size:17px}
.footer p{color:var(--faint); font-size:13.5px; font-family:var(--font-mono)}
.footer__links{display:flex; gap:24px}
.footer__links a{color:var(--muted); font-size:14px}
.footer__links a:hover{color:var(--ink)}

/* ============================================================
   VOICE CALL MODAL
   ============================================================ */
.modal{position:fixed; inset:0; z-index:100; display:none; align-items:center; justify-content:center; padding:24px}
.modal.open{display:flex}
.modal__scrim{position:absolute; inset:0; background:rgba(22,24,29,.55); backdrop-filter:blur(4px)}
.modal__card{position:relative; width:100%; max-width:580px; background:var(--surface); border:1px solid var(--line); border-radius:18px; overflow:hidden; box-shadow:0 24px 60px rgba(22,24,29,.28)}
.modal__head{display:flex; align-items:center; justify-content:space-between; padding:20px 22px; border-bottom:1px solid var(--line)}
.modal__head .who{display:flex; align-items:center; gap:12px}
.avatar{width:40px; height:40px; border-radius:10px; background:var(--accent-wash); border:1px solid var(--accent); color:var(--accent); display:flex; align-items:center; justify-content:center; font-family:var(--font-display); font-weight:700; font-size:16px}
.modal__head .name{font-family:var(--font-display); font-weight:600; font-size:15px}
.modal__head .state{font-family:var(--font-mono); font-size:11.5px; color:var(--faint); letter-spacing:.02em}
.modal__head .state.live{color:var(--ok)}
.modal__x{background:none; border:none; cursor:pointer; color:var(--faint); font-size:22px; line-height:1; padding:4px}
.modal__x:hover{color:var(--ink)}
.modal__body{padding:22px}
.modal .bars{height:46px; margin-bottom:20px}
.modal .bars.idle span{animation-play-state:paused; transform:scaleY(.22); opacity:.35}
.mtrans{display:flex; flex-direction:column; gap:14px; min-height:220px; max-height:min(52vh,440px); overflow-y:auto; padding-right:6px; scroll-behavior:smooth}
.mline{display:flex; gap:11px; font-size:14.5px; line-height:1.5; animation:rise .35s ease}
@keyframes rise{from{opacity:0; transform:translateY(6px)}to{opacity:1; transform:none}}
.mline .spk{font-family:var(--font-mono); font-size:10px; letter-spacing:.06em; text-transform:uppercase; color:var(--faint); min-width:64px; padding-top:3px}
.mline.ai .spk{color:var(--accent)}
.mline.home .txt{color:var(--muted)}
.mline.sys{justify-content:center}
.mline.sys .txt{font-family:var(--font-mono); font-size:12px; color:var(--ok); background:rgba(31,157,87,.08); padding:6px 12px; border-radius:20px}
.modal__foot{padding:16px 22px; border-top:1px solid var(--line); display:flex; align-items:center; justify-content:space-between; gap:12px}
.replies{display:flex; gap:8px; flex-wrap:wrap; flex:1}
.reply{font-family:var(--font-body); font-size:13px; background:var(--base-2); border:1px solid var(--line); border-radius:20px; padding:8px 14px; cursor:pointer; color:var(--ink); transition:.15s}
.reply:hover{border-color:var(--accent); color:var(--accent)}
.endcall{background:#E5484D; color:#fff; border:none; border-radius:8px; width:44px; height:44px; cursor:pointer; font-size:18px; flex:none; display:flex; align-items:center; justify-content:center}
.endcall:hover{background:#c93b40}
.modal__note{text-align:center; font-family:var(--font-mono); font-size:10.5px; color:var(--faint); padding:0 22px 16px; letter-spacing:.02em}

/* ============================================================
   REVEAL ANIMATION
   ============================================================ */
.reveal{opacity:0; transform:translateY(14px); transition:opacity .6s ease, transform .6s ease}
.reveal.in{opacity:1; transform:none}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:920px){
  .hero__grid,.leak__grid,.fit{grid-template-columns:1fr; gap:44px}
  .steps,.leakstats{grid-template-columns:1fr}
  .feat{grid-template-columns:1fr}
  .feat__cell{border-right:none}
  .feat__cell:nth-last-child(2){border-bottom:1px solid var(--line)}
  .nav__links{display:none}
  .offer{padding:48px 26px}
  .section{padding:72px 0}
}
@media (max-width:520px){
  body{font-size:16px}
  .hero__cta{gap:14px}
  .nav__cta .btn span.label{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important; scroll-behavior:auto!important}
  .reveal{opacity:1; transform:none; transition:none}
}