/* FuelFlux site — tokens mirror demo/brand.py (blue accent on slate). */
@font-face {
  font-family: "Sora";
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url("/fonts/sora-var-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Sora";
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url("/fonts/sora-var-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+1E00-1E9F, U+1EF2-1EFF, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("/fonts/ibm-plex-mono-500-latin.woff2") format("woff2");
}

:root {
  --accent: #2f6fe0;
  --accent-strong: #2159c4;
  --accent-soft: #e8f0fd;
  --ink: #0f172a;
  --ink-soft: #1e293b;
  --body: #334155;
  --muted: #64748b;
  --line: #e2e8f0;
  --cloud: #f1f5f9;
  --bg: #ffffff;
  --surface: #ffffff;
  --good: #15803d;
  --shadow: 0 1px 2px rgb(15 23 42 / 0.05), 0 8px 24px -12px rgb(15 23 42 / 0.12);
  --radius: 14px;
  --max: 1120px;
  --sans: "Sora", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --accent: #6b9cf5;
    --accent-strong: #8db3f8;
    --accent-soft: #16233d;
    --ink: #f1f5f9;
    --ink-soft: #e2e8f0;
    --body: #cbd5e1;
    --muted: #94a3b8;
    --line: #1e293b;
    --cloud: #111a2c;
    --bg: #0b1220;
    --surface: #0f172a;
    --good: #4ade80;
    --shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 8px 24px -12px rgb(0 0 0 / 0.5);
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 80px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--body);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--accent-strong); text-underline-offset: 3px; }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
h1, h2, h3 { color: var(--ink); line-height: 1.15; letter-spacing: -0.02em; margin: 0; }
p { margin: 0; }

.skip {
  position: absolute; left: 16px; top: -48px; z-index: 10;
  background: var(--ink); color: var(--bg); padding: 8px 14px; border-radius: 8px;
}
.skip:focus { top: 12px; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .wrap { padding: 0 32px; } }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 5;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
@supports not (color: color-mix(in srgb, red 50%, transparent)) { .site-header { background: var(--bg); } }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand-mark { width: 30px; height: 30px; flex: none; }
.brand-word { font-weight: 700; font-size: 1.2rem; letter-spacing: -0.03em; }
.brand-word span { color: var(--accent); }
.nav { display: flex; align-items: center; gap: 6px; }
.nav .nav-link { color: var(--body); text-decoration: none; font-size: 0.92rem; font-weight: 500; padding: 8px 10px; border-radius: 8px; }
.nav .nav-link:hover { color: var(--ink); background: var(--cloud); }
.nav .nav-link { display: none; }
@media (min-width: 720px) { .nav .nav-link { display: inline-block; } }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 10px 18px; border-radius: 10px;
  font: 600 0.95rem/1.2 var(--sans); text-decoration: none;
  border: 1px solid transparent; transition: background-color .15s, border-color .15s, color .15s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-strong); color: #fff; }
@media (prefers-color-scheme: dark) {
  .btn-primary { background: #2f6fe0; }
  .btn-primary:hover { background: #2159c4; }
}
.btn-ghost { border-color: var(--line); color: var(--ink); background: var(--surface); }
.btn-ghost:hover { border-color: var(--muted); color: var(--ink); }
.nav .btn { min-height: 40px; padding: 8px 14px; font-size: 0.9rem; }

/* Hero */
.hero { padding: 56px 0 64px; border-bottom: 1px solid var(--line);
  background:
    radial-gradient(900px 400px at 85% -10%, var(--accent-soft), transparent 70%),
    var(--bg);
}
.hero .wrap { display: grid; gap: 40px; align-items: center; }
@media (min-width: 960px) { .hero { padding: 88px 0 96px; } .hero .wrap { grid-template-columns: 1.05fr 0.95fr; gap: 56px; } }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font: 500 0.78rem/1 var(--mono); text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--accent-strong); margin-bottom: 18px;
}
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--good); box-shadow: 0 0 0 4px color-mix(in srgb, var(--good) 18%, transparent); }
.hero h1 { font-size: clamp(2.1rem, 6vw, 3.4rem); font-weight: 700; letter-spacing: -0.035em; }
.hero h1 em { font-style: normal; color: var(--accent); }
.lede { margin-top: 20px; font-size: 1.1rem; max-width: 36rem; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* Hero visual */
figure.panel { margin: 0; }
.panel {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 20px;
}
.panel-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.panel-title { font-weight: 600; color: var(--ink); font-size: 0.95rem; }
.tag { font: 500 0.7rem/1 var(--mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 5px 8px; }
.chart { margin-top: 14px; width: 100%; height: auto; }
.chart .grid { stroke: var(--line); stroke-width: 1; }
.chart .band { fill: var(--accent); opacity: 0.14; }
.chart .actual { fill: none; stroke: var(--ink-soft); stroke-width: 2.25; stroke-linejoin: round; stroke-linecap: round; }
.chart .forecast { fill: none; stroke: var(--accent); stroke-width: 2.25; stroke-dasharray: 5 5; stroke-linecap: round; }
.chart .today { stroke: var(--muted); stroke-width: 1; stroke-dasharray: 2 4; }
.chart text { font: 500 12px var(--mono); fill: var(--muted); }
@media (max-width: 480px) { .chart text { font-size: 15px; } }
.legend { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 10px; font-size: 0.78rem; color: var(--muted); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { display: inline-block; width: 16px; height: 0; border-top: 2px solid var(--ink-soft); }
.legend i.f { border-top: 2px dashed var(--accent); }
.legend i.b { height: 10px; border: 0; background: var(--accent); opacity: .18; border-radius: 2px; }
.rec {
  margin-top: 16px; display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; align-items: center;
  border-top: 1px solid var(--line); padding-top: 14px;
}
.rec-label { font-size: 0.82rem; color: var(--muted); }
.rec-value { font: 500 1rem/1.3 var(--mono); color: var(--ink); font-variant-numeric: tabular-nums; }
.rec-note { grid-column: 1 / -1; font-size: 0.78rem; color: var(--muted); }

/* Sections */
.section { padding: 72px 0; }
.section + .section { border-top: 1px solid var(--line); }
@media (min-width: 960px) { .section { padding: 96px 0; } }
.section-head { max-width: 40rem; margin-bottom: 40px; }
.section-head h2 { font-size: clamp(1.6rem, 4vw, 2.3rem); font-weight: 700; }
.section-head p { margin-top: 14px; font-size: 1.05rem; }
.kicker { font: 500 0.78rem/1 var(--mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent-strong); margin-bottom: 14px; display: block; }

.grid-4 { display: grid; gap: 16px; }
@media (min-width: 640px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .grid-4 { grid-template-columns: repeat(4, 1fr); } }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.card h3 { font-size: 1.08rem; font-weight: 650; margin-top: 16px; }
.card p { margin-top: 8px; font-size: 0.95rem; }
.icon { width: 40px; height: 40px; border-radius: 10px; background: var(--accent-soft); color: var(--accent-strong); display: grid; place-items: center; }
.icon svg { width: 22px; height: 22px; }

.steps { display: grid; gap: 16px; counter-reset: step; list-style: none; padding: 0; margin: 0; }
@media (min-width: 860px) { .steps { grid-template-columns: repeat(3, 1fr); gap: 24px; } }
.steps li { counter-increment: step; border-top: 2px solid var(--ink); padding-top: 18px; }
.steps li::before { content: "0" counter(step); font: 500 0.85rem/1 var(--mono); color: var(--accent-strong); }
.steps h3 { font-size: 1.1rem; font-weight: 650; margin-top: 10px; }
.steps p { margin-top: 8px; font-size: 0.95rem; }

.about { display: grid; gap: 32px; }
@media (min-width: 900px) { .about { grid-template-columns: 1.2fr 0.8fr; gap: 56px; align-items: start; } }
.about h2 { font-size: clamp(1.6rem, 4vw, 2.3rem); font-weight: 700; }
.about-copy p { margin-top: 16px; }
.about-copy h2 + p { margin-top: 18px; }
.facts { margin: 0; display: grid; gap: 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow: hidden; }
.facts div { display: grid; gap: 2px; padding: 14px 18px; }
.facts div + div { border-top: 1px solid var(--line); }
.facts dt { font: 500 0.72rem/1.4 var(--mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
.facts dd { margin: 0; color: var(--ink); font-weight: 500; overflow-wrap: anywhere; }

.contact { background: var(--ink); color: #cbd5e1; border-radius: 20px; padding: 40px 24px; display: grid; gap: 24px; }
@media (prefers-color-scheme: dark) { .contact { background: var(--cloud); border: 1px solid var(--line); } }
@media (min-width: 860px) { .contact { grid-template-columns: 1.3fr 1fr; align-items: center; padding: 56px; } }
.contact h2 { color: #fff; font-size: clamp(1.6rem, 4vw, 2.2rem); }
.contact p { margin-top: 12px; }
.contact .mail { font: 500 clamp(1rem, 3.6vw, 1.25rem)/1.3 var(--mono); color: #fff; overflow-wrap: anywhere; }
.contact .btn-primary { margin-top: 14px; }
.contact .buy { font-size: 0.9rem; color: #94a3b8; }
.contact .buy strong { color: #e2e8f0; }
.card h3 .tag { vertical-align: middle; margin-left: 6px; }
.contact-side { display: grid; gap: 6px; }
.contact-side small { color: #94a3b8; font-size: 0.85rem; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 32px 0 40px; font-size: 0.88rem; color: var(--muted); }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--ink); text-decoration: underline; }

/* Legal pages */
.legal { padding: 56px 0 80px; }
.legal .wrap { max-width: 760px; }
.legal h1 { font-size: clamp(1.9rem, 5vw, 2.6rem); font-weight: 700; }
.legal .updated { margin-top: 10px; font: 500 0.82rem/1.4 var(--mono); color: var(--muted); }
.legal h2 { font-size: 1.2rem; font-weight: 650; margin-top: 40px; }
.legal p, .legal ul { margin-top: 12px; }
.legal ul { padding-left: 1.2rem; }
.legal li + li { margin-top: 6px; }