/* ============ LLM BUS — design tokens (derived from the founder mockup) ============ */
:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --border: #e4e7ec;
  --ink: #101828;
  --muted: #667085;
  --accent: #1b74c5;          /* price blue */
  --accent-soft: #e9f4fc;     /* selected fill */
  --accent-border: #63acdf;   /* selected border */
  --dark: #17191c;            /* primary CTA */
  --good: #12805c;
  --warn: #b45309;
  --bad: #b42318;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(16,24,40,.04), 0 4px 16px rgba(16,24,40,.06);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }

body { margin: 0; font-family: var(--font); background: var(--bg); color: var(--ink); line-height: 1.55; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: 760px; }
img, svg { max-width: 100%; }
.dim { color: var(--muted); }

h1, h2, h3 { line-height: 1.15; margin: 0 0 12px; letter-spacing: -0.015em; }
h1 { font-size: clamp(34px, 5vw, 54px); font-weight: 800; }
h1 em { font-style: normal; color: var(--accent); }
h2 { font-size: clamp(24px, 3.2vw, 34px); font-weight: 750; }
h3 { font-size: 18px; font-weight: 700; }

.eyebrow { text-transform: uppercase; letter-spacing: .1em; font-size: 12px; font-weight: 600; color: var(--muted); margin: 0 0 10px; }

/* ============ buttons ============ */
.btn { display: inline-block; border: 1px solid transparent; border-radius: 10px; padding: 13px 22px;
  font: inherit; font-weight: 600; font-size: 15px; cursor: pointer; text-decoration: none; text-align: center;
  transition: transform .06s ease, background .15s ease, border-color .15s ease; }
.btn:active { transform: translateY(1px); }
.btn-dark { background: var(--dark); color: #fff; }
.btn-dark:hover { background: #000; }
.btn-ghost { background: var(--card); color: var(--ink); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--muted); }
.btn-light { background: #fff; color: var(--ink); }
.btn-sm { padding: 9px 16px; font-size: 14px; }
.btn-block { display: block; width: 100%; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ============ topbar ============ */
.topbar { position: sticky; top: 0; z-index: 50; background: rgba(245,246,248,.85); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
.topbar-inner { display: flex; align-items: center; gap: 28px; height: 64px; }
.wordmark { font-weight: 850; font-size: 20px; letter-spacing: -.02em; color: var(--ink); text-decoration: none; }
.wordmark span { background: var(--accent); color: #fff; border-radius: 6px; padding: 1px 6px; margin-left: 3px; }
.wordmark-sm { font-size: 16px; }
.topnav { display: flex; gap: 22px; margin-left: auto; }
.topnav a { color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 550; }
.topnav a:hover { color: var(--ink); }
@media (max-width: 820px) { .topnav { display: none; } .topbar-inner { justify-content: space-between; } }

/* ============ hero ============ */
.hero { padding: 72px 0 64px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.lede { font-size: 18px; color: var(--muted); max-width: 46ch; }
.hero-ctas { display: flex; gap: 12px; margin: 26px 0 22px; flex-wrap: wrap; }
.trust-row { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 18px; padding: 0; margin: 0; }
.trust-row li { font-size: 13px; color: var(--muted); font-weight: 550; }
.trust-row li::before { content: "✓ "; color: var(--good); font-weight: 700; }

.hero-schema { margin: 0; }
.hero-schema svg { width: 100%; height: auto; }
.hero-schema figcaption { font-size: 13px; color: var(--muted); margin-top: 10px; text-align: center; }
.s-line { fill: #fff; stroke: var(--ink); stroke-width: 2.5; }
.s-win { fill: var(--accent-soft); stroke: var(--ink); stroke-width: 1.5; }
.s-bus { fill: #fff; stroke: var(--ink); stroke-width: 3; }
.s-stripe { fill: var(--accent); }
.s-wheel { fill: var(--ink); }
.s-label { font: 600 14px var(--font); fill: var(--ink); }
.s-cable { fill: none; stroke-width: 5; stroke-linecap: round; }
.s-power { stroke: #e8a33d; }
.s-data { stroke: var(--accent); }
.s-cable-label { font: 600 12px var(--font); }
.s-power-t { fill: #b97d1e; }
.s-data-t { fill: var(--accent); }
.s-cloud path { fill: none; stroke: var(--muted); stroke-width: 2; stroke-dasharray: 5 5; }
.s-cloud line { stroke: var(--bad); stroke-width: 3; stroke-linecap: round; }
.s-cloud text { font: 600 12px var(--font); fill: var(--bad); }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } .hero { padding-top: 48px; } }

/* ============ sections / cards ============ */
.section { padding: 72px 0; }
.section-alt { background: #fff; border-block: 1px solid var(--border); }
.section-alt .card { border-color: var(--border); box-shadow: none; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 28px; }
.step-no { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent); font-weight: 800; margin-bottom: 12px; }
.steps p { color: var(--muted); font-size: 15px; margin: 0; }
@media (max-width: 900px) { .steps { grid-template-columns: 1fr; } }

/* ============ comparison table ============ */
.table-scroll { overflow-x: auto; margin-top: 24px; }
.cmp { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; font-size: 15px; min-width: 640px; }
.cmp th, .cmp td { padding: 13px 16px; border-bottom: 1px solid #eef1f4; text-align: left; }
.cmp th { background: #fafbfc; font-size: 11.5px; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); }
.cmp .good { color: var(--good); } .cmp .warn { color: var(--warn); } .cmp .bad { color: var(--bad); }
.cmp .hl { background: var(--accent-soft); }
.cmp .dim { font-size: 13px; }
.foot-note { color: var(--muted); font-size: 14px; margin-top: 16px; max-width: 72ch; }

/* ============ configurator ============ */
/* X-ray reveal in the summary card: hover shows the servers inside the van */
.sum-pricerow { display: flex; align-items: center; gap: 14px; margin-top: 4px; }
.sum-pricecol { flex: 1 1 auto; min-width: 0; }
.xray { position: relative; flex: 0 0 50%; width: 50%; margin: 0; cursor: crosshair; user-select: none; }
.xray img { display: block; width: 100%; height: auto; pointer-events: none; }
.xray .xray-reveal { position: absolute; inset: 0; opacity: 0; transition: opacity .18s ease;
  -webkit-mask-image: radial-gradient(circle 50px at var(--mx, 50%) var(--my, 50%), #000 55%, transparent 100%);
          mask-image: radial-gradient(circle 50px at var(--mx, 50%) var(--my, 50%), #000 55%, transparent 100%);
  -webkit-mask-repeat: no-repeat; mask-repeat: no-repeat; }
.xray:hover .xray-reveal, .xray.stuck .xray-reveal { opacity: 1; }
.xray.stuck .xray-reveal { -webkit-mask-image: none; mask-image: none; }

.config-grid { display: grid; grid-template-columns: 1fr 400px; gap: 28px; margin-top: 28px; align-items: start; }
.step-label { text-transform: uppercase; letter-spacing: .09em; font-size: 12px; font-weight: 650; color: var(--muted); margin: 26px 0 12px; }
.config-left .step-label:first-child { margin-top: 0; }

.pick { display: block; width: 100%; text-align: left; background: var(--card); border: 1.5px solid var(--border);
  border-radius: var(--radius); padding: 18px 20px; cursor: pointer; font: inherit; color: var(--ink);
  transition: border-color .12s ease, background .12s ease; }
.pick:hover { border-color: #c6cdd6; }
.pick.selected { background: var(--accent-soft); border-color: var(--accent-border); box-shadow: 0 0 0 1px var(--accent-border); }
.bus-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.pick-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; font-size: 17px; }
.pick-sub { display: block; color: var(--muted); font-size: 14px; margin-top: 3px; }
.pick-price { display: block; color: var(--accent); font-weight: 700; margin-top: 8px; }

.pill { border-radius: 99px; font-size: 11px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; padding: 4px 10px; }
.pill-blue { background: var(--accent); color: #fff; }
.pill-dark { background: var(--dark); color: #fff; }

.paket-col { display: grid; gap: 12px; }
.paket { display: flex; align-items: center; gap: 14px; }
.paket .radio { flex: 0 0 auto; width: 18px; height: 18px; border-radius: 50%; border: 2px solid #c6cdd6; background: #fff; }
.paket.selected .radio { border: 5px solid var(--accent); }
.paket-main { flex: 1; }
.paket-main b { font-size: 16px; }
.paket-main .pick-sub { margin-top: 1px; }
.paket-right { text-align: right; }
.paket-right .p1 { font-weight: 750; font-size: 16px; }
.paket-right .p2 { color: var(--accent); font-size: 13px; font-weight: 600; }
.paket-right .p2.tag { color: var(--muted); }

.config-note { color: var(--muted); font-size: 14px; margin-top: 22px; max-width: 62ch; }

/* summary panel */
.summary { position: sticky; top: 84px; padding: 26px; }
.sum-title { display: flex; align-items: center; gap: 10px; }
.sum-title h3 { margin: 0; font-size: 22px; }
.chip { background: var(--accent-soft); color: var(--accent); border-radius: 99px; font-size: 12px; font-weight: 700; padding: 4px 10px; }
.sum-paket { color: var(--muted); margin: 6px 0 14px; }
.sum-price { font-size: 44px; font-weight: 830; letter-spacing: -.02em; margin: 0; }
.sum-perday { color: var(--accent); font-weight: 650; margin: 2px 0 0; }
.summary hr { border: none; border-top: 1px solid var(--border); margin: 18px 0; }
.specs { margin: 0; display: grid; gap: 13px; }
.specs > div { display: grid; grid-template-columns: 26px 1fr; gap: 10px; }
.spec-ico { color: var(--accent); font-size: 16px; line-height: 1.3; }
.specs dt { font-size: 12.5px; color: var(--muted); }
.specs dd { margin: 0; font-size: 14px; font-weight: 600; }
.badge-row { display: flex; gap: 8px; margin: 18px 0 0; flex-wrap: wrap; }
.badge { background: #f2f4f7; border-radius: 99px; padding: 6px 12px; font-size: 13px; font-weight: 650; }
.credit-box { background: var(--accent-soft); border-radius: 10px; padding: 13px 15px; font-size: 13.5px; margin: 16px 0 18px; }
.credit-box:empty { display: none; }
.summary .btn + .btn { margin-top: 10px; }
.sum-foot { text-align: center; color: var(--muted); font-size: 12.5px; margin: 14px 0 0; }
@media (max-width: 980px) { .config-grid { grid-template-columns: 1fr; } .summary { position: static; } .bus-row { grid-template-columns: 1fr; } }

/* ============ FAQ ============ */
details { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 0 20px; margin-top: 12px; }
summary { cursor: pointer; font-weight: 650; padding: 16px 0; list-style: none; position: relative; padding-right: 30px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); color: var(--muted); font-size: 20px; font-weight: 400; }
details[open] summary::after { content: "–"; }
details p { color: var(--muted); margin: 0 0 16px; font-size: 15px; }

/* ============ CTA band / footer ============ */
.cta-band { background: var(--dark); color: #fff; padding: 56px 0; }
.cta-band-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.cta-band h2 { margin: 0; }
.footer { border-top: 1px solid var(--border); padding: 32px 0 40px; }
.footer-inner { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.footer nav { display: flex; gap: 18px; margin-left: auto; }
.footer a { color: var(--muted); text-decoration: none; font-size: 14px; }
.footer a:hover { color: var(--ink); }
.footer .dim { flex-basis: 100%; font-size: 12.5px; margin: 4px 0 0; }

/* ============ modal ============ */
.modal { border: none; border-radius: 16px; padding: 0; max-width: 560px; width: calc(100vw - 40px); box-shadow: 0 24px 64px rgba(16,24,40,.25); }
.modal::backdrop { background: rgba(16,24,40,.45); }
.modal form, .modal-success { padding: 28px; }
.modal-head { display: flex; align-items: center; justify-content: space-between; }
.modal-head h3 { margin: 0; }
.modal-x { border: none; background: none; font-size: 26px; color: var(--muted); cursor: pointer; line-height: 1; }
.modal-config { background: var(--accent-soft); color: var(--accent); font-weight: 650; font-size: 14px; border-radius: 8px; padding: 9px 13px; margin: 14px 0 18px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
label { display: block; font-size: 13px; font-weight: 600; color: var(--muted); }
.label-block { margin-top: 12px; }
input, textarea { width: 100%; margin-top: 5px; border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; font: inherit; font-size: 15px; color: var(--ink); background: #fff; }
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-error { color: var(--bad); font-size: 14px; font-weight: 600; }
.modal form .btn-block { margin-top: 18px; }
.modal-success { text-align: center; }
.success-icon { width: 54px; height: 54px; border-radius: 50%; background: #e6f4ee; color: var(--good); font-size: 26px; font-weight: 800; display: grid; place-items: center; margin: 6px auto 14px; }
@media (max-width: 560px) { .form-grid { grid-template-columns: 1fr; } }