/* ============================================================
   CVI — Computational Value Investing
   Shared design system  ·  © 2026 Stefan Mauch, CFA
   ============================================================ */

:root{
  /* Surfaces (Bloomberg-terminal dark, matched to cvi_dashboard.html) */
  --bg:#05080f; --bg2:#0b1018; --bg3:#111923; --bg4:#172030; --bg5:#1e293b;
  --border:#162030; --border2:#1f3048; --border3:#2a4060;

  /* Text */
  --text:#e8eef6; --text2:#9fb0c3; --text3:#6a8fab; --text4:#334d6a;

  /* Accents */
  --blue:#2878e8; --blue2:#1a5ab8; --blue-soft:#5b9bff;
  --blue-glow:rgba(40,120,232,.16);
  --green:#09a868; --green-dim:rgba(9,168,104,.12);
  --red:#c83838; --red-dim:rgba(200,56,56,.12);
  --amber:#d8920c; --amber-dim:rgba(216,146,12,.12);
  --purple:#6848c8; --cyan:#0878a8;

  --sans:'Inter',system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --mono:'SF Mono',ui-monospace,'Fira Code',Menlo,Consolas,monospace;

  --maxw:1120px;
  --radius:14px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--text);
  font-family:var(--sans);line-height:1.6;font-size:15px;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  min-height:100vh;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ── Buttons ─────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;
  padding:12px 24px;border-radius:10px;cursor:pointer;border:1px solid transparent;
  transition:all .16s ease;font-family:inherit;white-space:nowrap}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 4px 20px var(--blue-glow)}
.btn-primary:hover{background:var(--blue2);transform:translateY(-1px);box-shadow:0 6px 26px var(--blue-glow)}
.btn-ghost{background:transparent;border-color:var(--border2);color:var(--text)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue-soft)}
.btn-sm{padding:8px 16px;font-size:13px;border-radius:8px}

.eyebrow{font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--blue-soft)}

/* ── Nav ─────────────────────────────────────────────────── */
nav.site{position:sticky;top:0;z-index:100;background:rgba(5,8,15,.82);
  backdrop-filter:blur(18px);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:18px;letter-spacing:-.02em}
.brand-mark{width:32px;height:32px;border-radius:9px;
  background:linear-gradient(135deg,var(--blue),var(--purple));
  display:flex;align-items:center;justify-content:center;font-size:16px;color:#fff;
  box-shadow:0 4px 16px var(--blue-glow)}
.brand-sub{font-size:11px;font-weight:500;color:var(--text3);letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:30px;font-size:14px;color:var(--text2)}
.nav-links a:hover{color:var(--text)}
@media(max-width:820px){.nav-links a:not(.btn){display:none}}

/* ── Hero ────────────────────────────────────────────────── */
.hero{position:relative;padding:104px 0 64px;text-align:center;overflow:hidden}
.hero::after{content:"";position:absolute;top:-260px;left:50%;transform:translateX(-50%);
  width:1000px;height:680px;z-index:-1;
  background:radial-gradient(ellipse,rgba(40,120,232,.18),transparent 62%)}
.hero h1{font-size:56px;line-height:1.06;letter-spacing:-.035em;font-weight:800;
  max-width:900px;margin:20px auto 0}
.grad{background:linear-gradient(120deg,var(--blue-soft),#a78bfa);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero p.lede{font-size:20px;color:var(--text2);max-width:680px;margin:24px auto 0}
.hero-cta{display:flex;gap:14px;justify-content:center;margin-top:36px;flex-wrap:wrap}
.hero-note{margin-top:16px;font-size:13px;color:var(--text3);font-family:var(--mono)}
@media(max-width:760px){.hero h1{font-size:38px}.hero p.lede{font-size:17px}}

/* ── Stat strip ──────────────────────────────────────────── */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:60px 0 8px}
.stat{background:var(--bg2);border:1px solid var(--border);border-radius:12px;
  padding:22px 18px;text-align:center}
.stat .n{font-size:32px;font-weight:800;letter-spacing:-.02em;
  background:linear-gradient(120deg,#fff,var(--blue-soft));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat .l{font-size:12px;color:var(--text3);margin-top:5px}
@media(max-width:760px){.stats{grid-template-columns:repeat(2,1fr)}}

/* ── Sections ────────────────────────────────────────────── */
section{padding:72px 0}
.band{background:var(--bg2);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.sec-head{text-align:center;max-width:720px;margin:0 auto 48px}
.sec-head h2{font-size:36px;letter-spacing:-.025em;font-weight:800;margin-top:10px;line-height:1.12}
.sec-head p{color:var(--text2);font-size:17px;margin-top:14px}

/* ── Feature cards ───────────────────────────────────────── */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:880px){.grid-3{grid-template-columns:1fr}}
.card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);
  padding:28px;transition:border-color .16s,transform .16s,box-shadow .16s}
.card:hover{border-color:var(--border3);transform:translateY(-3px);box-shadow:0 12px 32px rgba(0,0,0,.3)}
.card .ico{width:44px;height:44px;border-radius:11px;background:var(--bg4);
  display:flex;align-items:center;justify-content:center;font-size:21px;margin-bottom:16px}
.card h3{font-size:17px;font-weight:700;letter-spacing:-.01em}
.card p{color:var(--text2);font-size:14px;margin-top:9px;line-height:1.65}

/* ── Steps ───────────────────────────────────────────────── */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:880px){.steps{grid-template-columns:repeat(2,1fr)}}
.step{padding:24px;background:var(--bg);border:1px solid var(--border);border-radius:12px}
.band .step{background:var(--bg3)}
.step .num{font-family:var(--mono);font-size:13px;font-weight:700;color:var(--blue-soft)}
.step h4{font-size:15px;font-weight:700;margin-top:10px}
.step p{font-size:13px;color:var(--text2);margin-top:7px}

/* ── Methodology / pipeline list ─────────────────────────── */
.pipeline{max-width:840px;margin:0 auto;display:flex;flex-direction:column;gap:2px}
.pl-row{display:grid;grid-template-columns:88px 1fr;gap:18px;align-items:baseline;
  padding:16px 0;border-bottom:1px solid var(--border)}
.pl-block{font-family:var(--mono);font-size:12px;font-weight:700;color:var(--blue-soft);
  background:var(--bg3);border:1px solid var(--border2);border-radius:6px;
  padding:5px 8px;text-align:center}
.pl-body h4{font-size:15px;font-weight:700}
.pl-body p{color:var(--text2);font-size:14px;margin-top:4px}

/* ── About / two-col ─────────────────────────────────────── */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
@media(max-width:880px){.two-col{grid-template-columns:1fr}}
.prose p{color:var(--text2);font-size:16px;margin-top:14px}
.chiprow{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.chip{font-size:12px;font-family:var(--mono);color:var(--text2);
  background:var(--bg3);border:1px solid var(--border2);border-radius:20px;padding:6px 12px}

/* ── CTA box ─────────────────────────────────────────────── */
.cta-box{text-align:center;background:linear-gradient(135deg,var(--bg2),var(--bg3));
  border:1px solid var(--border2);border-radius:18px;padding:60px 24px;position:relative;overflow:hidden}
.cta-box::after{content:"";position:absolute;top:-160px;left:50%;transform:translateX(-50%);
  width:700px;height:420px;z-index:0;background:radial-gradient(ellipse,var(--blue-glow),transparent 65%)}
.cta-box>*{position:relative;z-index:1}
.cta-box h2{font-size:34px;letter-spacing:-.025em;font-weight:800}
.cta-box p{color:var(--text2);margin-top:12px;font-size:18px}

/* ── Footer ──────────────────────────────────────────────── */
footer.site{border-top:1px solid var(--border);padding:44px 0;margin-top:40px}
.foot-inner{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13px;color:var(--text3);align-items:center}
.disclaimer{max-width:820px;font-size:11px;color:var(--text4);line-height:1.7;margin-top:20px}

/* ── Utility ─────────────────────────────────────────────── */
.center{text-align:center}
.mt-24{margin-top:24px}
.pill{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-family:var(--mono);
  color:var(--text2);background:var(--bg3);border:1px solid var(--border2);
  border-radius:20px;padding:6px 13px}
.pill .dot{width:6px;height:6px;border-radius:50%;background:var(--text4)}
.pill .dot.ok{background:var(--green);box-shadow:0 0 8px var(--green)}
.pill .dot.loading{background:var(--amber);box-shadow:0 0 8px var(--amber);animation:blink 1.4s infinite}
.pill .dot.error{background:var(--red);box-shadow:0 0 8px var(--red)}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.35}}