:root{
  --navy:#0B1F33; --navy-2:#0f2942; --coral:#FF5A3C; --teal:#0FB5A0; --gold:#E8B23A;
  --paper:#F7F9FC; --ink:#0B1F33; --slate:#5B6B7B; --line:#e4e9f0; --card:#ffffff;
  --maxw:1120px;
  --sans:"Inter",system-ui,sans-serif; --head:"Space Grotesk",var(--sans); --mono:"JetBrains Mono",monospace;
}
*{box-sizing:border-box}
/* top loading bar (shown while live Databricks data is fetched) */
.progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:50;pointer-events:none;opacity:0;transition:opacity .25s}
.progress.on{opacity:1}
.progress::before{content:"";position:absolute;top:0;height:100%;width:35%;border-radius:0 3px 3px 0;
  background:linear-gradient(90deg,transparent,var(--coral),var(--teal),transparent);animation:loadbar 1.15s ease-in-out infinite}
@keyframes loadbar{0%{left:-35%}100%{left:100%}}
@media(prefers-reduced-motion:reduce){.progress::before{animation-duration:2.4s}}
html,body{max-width:100%;overflow-x:hidden}
img,canvas{max-width:100%;height:auto}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--paper);line-height:1.55;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--head);line-height:1.15;letter-spacing:-.01em;margin:0}
a{color:inherit}
code{font-family:var(--mono);font-size:.86em;background:rgba(11,31,51,.06);padding:.1em .4em;border-radius:5px;color:var(--navy)}
.section .alt code,.hero code{background:rgba(255,255,255,.12);color:#dfe8f2}

/* nav */
.nav{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;
  gap:1rem;padding:.7rem clamp(1rem,4vw,2rem);background:rgba(11,31,51,.92);backdrop-filter:blur(8px);color:#fff}
.brand{display:flex;align-items:center;gap:.55rem;font-family:var(--head);font-weight:700;text-decoration:none;color:#fff}
.brand img{border-radius:7px}
.nav nav{display:flex;align-items:center;gap:clamp(.5rem,2vw,1.4rem);font-size:.92rem}
.nav nav a{color:#c7d3df;text-decoration:none}
.nav nav a:hover{color:#fff}

/* buttons */
.btn{display:inline-block;font-family:var(--head);font-weight:600;text-decoration:none;border-radius:9px;
  padding:.62rem 1.1rem;font-size:.95rem;transition:transform .08s ease,background .15s}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--coral);color:#fff}
.btn-primary:hover{background:#ff6f54}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.35);color:#fff;padding:.5rem .9rem}
.btn-ghost:hover{border-color:#fff}

/* hero */
.hero{max-width:var(--maxw);margin:0 auto;padding:clamp(2.5rem,7vw,5rem) clamp(1rem,4vw,2rem);
  display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(1.5rem,4vw,3rem);align-items:center}
.eyebrow{font-family:var(--head);font-weight:600;text-transform:uppercase;letter-spacing:.12em;font-size:.74rem;color:var(--coral)}
.hero h1{font-size:clamp(2rem,4.6vw,3.3rem);margin:.7rem 0 1rem}
.hero-copy p{font-size:1.06rem;color:#33414f;max-width:38ch}
.hero-cta{display:flex;gap:.7rem;flex-wrap:wrap;margin:1.4rem 0 .8rem}
.hero-cta .btn-ghost{border-color:var(--navy);color:var(--navy)}
.hero-cta .btn-ghost:hover{background:rgba(11,31,51,.06)}
.synthetic-note{font-size:.82rem;color:var(--slate)}
.hero-art img{width:100%;border-radius:14px;box-shadow:0 18px 50px -20px rgba(11,31,51,.45);border:1px solid var(--line)}

/* numbers band */
.band{background:var(--navy);color:#fff}
.kpis{max-width:var(--maxw);margin:0 auto;padding:clamp(1.5rem,4vw,2.4rem) clamp(1rem,4vw,2rem);
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.1);border-radius:14px;overflow:hidden}
.kpi{background:var(--navy);padding:1.1rem 1rem;text-align:center}
.kpi .v{font-family:var(--head);font-weight:700;font-size:clamp(1.4rem,3vw,2rem);line-height:1}
.kpi .l{font-size:.76rem;color:#9fb0c0;margin-top:.4rem;text-transform:uppercase;letter-spacing:.06em}
.kpi:nth-child(odd) .v{color:var(--teal)} .kpi:nth-child(even) .v{color:var(--gold)}

/* sections */
.section{max-width:var(--maxw);margin:0 auto;padding:clamp(2.6rem,6vw,4.5rem) clamp(1rem,4vw,2rem)}
.section.alt{max-width:none;background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section.alt>*{max-width:var(--maxw);margin-left:auto;margin-right:auto}
.section-head h2{font-size:clamp(1.5rem,3.2vw,2.1rem)}
.section-head p{color:var(--slate);max-width:62ch;margin:.6rem 0 0}
.figure{width:100%;border-radius:12px;border:1px solid var(--line);margin:1.6rem 0;box-shadow:0 10px 30px -18px rgba(11,31,51,.4)}
.src{font-family:var(--sans);font-size:.7rem;font-weight:600;vertical-align:middle;margin-left:.55rem;padding:.18rem .55rem;border-radius:999px;letter-spacing:.02em}
.src.live{color:#0a8f7f;background:rgba(15,181,160,.14)}
.src.snap{color:var(--slate);background:rgba(91,107,123,.14)}

/* pipeline steps */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:.8rem}
.step{background:var(--card);border:1px solid var(--line);border-radius:11px;padding:.9rem}
.step-k{display:block;font-family:var(--head);font-weight:700;color:var(--navy);margin-bottom:.3rem}
.step code{display:inline-block;margin-bottom:.4rem}
.step p{margin:0;font-size:.86rem;color:var(--slate)}

/* charts */
.chart-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.1rem;margin-top:1.7rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:13px;padding:1.1rem 1.2rem;
  box-shadow:0 8px 24px -20px rgba(11,31,51,.35)}
.card.wide{grid-column:1/-1}
.card h3{font-size:1rem;margin-bottom:.7rem}
canvas{max-height:300px}

/* accuracy */
.accuracy-row{display:grid;grid-template-columns:1fr 1.15fr;gap:1.1rem;margin-top:1.7rem;align-items:start}
.validation h3 .hl{color:var(--coral)}
.muted{color:var(--slate);font-size:.9rem}
.table-wrap{max-height:300px;overflow:auto;margin-top:.7rem;border:1px solid var(--line);border-radius:9px}
table{width:100%;border-collapse:collapse;font-size:.82rem}
th,td{text-align:left;padding:.5rem .7rem;border-bottom:1px solid var(--line)}
th{position:sticky;top:0;background:var(--paper);font-family:var(--head);font-size:.72rem;text-transform:uppercase;letter-spacing:.05em;color:var(--slate)}
td:first-child{font-family:var(--mono);font-size:.74rem}
.sev{font-weight:600;text-transform:capitalize}
.sev.warning{color:var(--coral)} .sev.info{color:var(--gold)} .sev.error{color:#d23}

/* dashboards */
.dash{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem;margin-top:1.8rem;align-items:start}
.dash-copy{grid-column:1/-1;max-width:64ch}
.dash-copy h3{font-size:1.3rem}
.tag{display:inline-block;font-size:.74rem;font-weight:600;color:var(--teal);background:rgba(15,181,160,.1);
  padding:.2rem .6rem;border-radius:999px;margin:.4rem 0}
.dash figure{margin:0}
.dash figure.wide{grid-column:1/-1}
.dash img{width:100%;border-radius:11px;border:1px solid var(--line);box-shadow:0 12px 32px -20px rgba(11,31,51,.45)}
.dash figcaption{font-size:.8rem;color:var(--slate);margin-top:.45rem;text-align:center}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:.55rem;padding:0;margin:1.4rem 0 0;list-style:none}
.chips li{font-family:var(--mono);font-size:.8rem;background:#fff;border:1px solid var(--line);border-radius:8px;padding:.4rem .7rem}

/* footer */
.footer{background:var(--navy);color:#bccadb;margin-top:2rem;padding:2.2rem clamp(1rem,4vw,2rem);
  display:flex;gap:1.4rem;justify-content:space-between;flex-wrap:wrap;font-size:.88rem}
.footer strong{color:#fff}
.footer>div:first-child{max-width:64ch}
.footer-links{display:flex;gap:1.1rem;align-items:flex-start}
.footer-links a{color:var(--teal);text-decoration:none}

/* responsive */
@media(max-width:860px){
  .hero{grid-template-columns:1fr} .hero-art{order:-1}
  .kpis{grid-template-columns:repeat(3,1fr)}
  .steps{grid-template-columns:1fr 1fr}
  .chart-grid,.accuracy-row,.dash{grid-template-columns:1fr}
  .nav nav a:not(.btn){display:none}
}
@media(max-width:480px){ .kpis{grid-template-columns:repeat(2,1fr)} .steps{grid-template-columns:1fr} }