/* Layout: slim header (logo left, theme switch right). Hero: headline + sign-in on the left, sample dashboard on the right. Three capabilities below. A short logo intro plays on load. */
:root {
  --font-display: "Sora", "Segoe UI", system-ui, sans-serif;
  --font-body: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  color-scheme: light;
  --skin: light;
  --bg: #eef1fa;
  --bg-glow: #dce5f8;
  --surface: #ffffff;
  --surface-2: #f3f5fc;
  --ink: #14213d;
  --ink-2: #4f5e7b;
  --line: #d9e0ef;
  --accent: #1565d8;
  --accent-2: #14b8d4;
  --on-accent: #ffffff;
  --navy-1: #18325f;
  --navy-2: #0b1b3b;
  --on-navy: #eaf4ff;
  --on-navy-2: #a3bdd9;
  --bar: #2b3a62;
  --seg-2: #2b3a62;
  --seg-3: #aab6d3;
  --warn: #c62828;
  --warn-bg: #fdeaea;
  --good: #1b7f4b;
  --good-bg: #e2f4ea;
  --shadow: 0 12px 32px rgba(30, 50, 110, 0.12);
  --road-truck: #2b3a62; --road-asphalt: rgba(30, 50, 110, 0.06); --road-line: rgba(30, 50, 110, 0.2); --road-alpha: 0.2;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not([data-skin]) {
    color-scheme: dark;
    --skin: night;
    --bg: #06172b; --bg-glow: #0c3156; --surface: #0c2542; --surface-2: #0a1f38;
    --ink: #e8f3ff; --ink-2: #9bb6d0; --line: #2a5280;
    --accent: #27d3e8; --accent-2: #27d3e8; --on-accent: #04203a;
    --navy-1: #124072; --navy-2: #0a2243; --on-navy: #eaf6ff; --on-navy-2: #a9c4de;
    --bar: #2f5a8f; --seg-2: #2f6aa3; --seg-3: #4d6f92;
    --warn: #ff8a80; --warn-bg: #3a1c26; --good: #5be0a2; --good-bg: #0f3a2c;
    --shadow: 0 14px 34px rgba(0, 0, 0, 0.45);
    --road-truck: #8fdcf0; --road-asphalt: rgba(39, 211, 232, 0.05); --road-line: rgba(143, 220, 240, 0.22); --road-alpha: 0.3;
  }
}
:root[data-theme="dark"]:not([data-skin]),
:root[data-skin="night"] {
  color-scheme: dark;
  --skin: night;
  --bg: #06172b; --bg-glow: #0c3156; --surface: #0c2542; --surface-2: #0a1f38;
  --ink: #e8f3ff; --ink-2: #9bb6d0; --line: #2a5280;
  --accent: #27d3e8; --accent-2: #27d3e8; --on-accent: #04203a;
  --navy-1: #124072; --navy-2: #0a2243; --on-navy: #eaf6ff; --on-navy-2: #a9c4de;
  --bar: #2f5a8f; --seg-2: #2f6aa3; --seg-3: #4d6f92;
  --warn: #ff8a80; --warn-bg: #3a1c26; --good: #5be0a2; --good-bg: #0f3a2c;
  --shadow: 0 14px 34px rgba(0, 0, 0, 0.45);
  --road-truck: #8fdcf0; --road-asphalt: rgba(39, 211, 232, 0.05); --road-line: rgba(143, 220, 240, 0.22); --road-alpha: 0.3;
}
:root[data-skin="slate"] {
  color-scheme: light;
  --skin: slate;
  --bg: #a9b5c8; --bg-glow: #c3cddd; --surface: #f1f4f9; --surface-2: #e2e8f1;
  --ink: #16213e; --ink-2: #303e5a; --line: #bfc9da;
  --accent: #0a5ea8; --accent-2: #12b8d2; --on-accent: #ffffff;
  --navy-1: #1f3566; --navy-2: #101e45; --on-navy: #eaf4ff; --on-navy-2: #a9c1dc;
  --bar: #26365f; --seg-2: #26365f; --seg-3: #9fb0cb;
  --warn: #b3261e; --warn-bg: #fbe6e4; --good: #1b7f4b; --good-bg: #dff1e7;
  --shadow: 0 12px 30px rgba(22, 33, 62, 0.22);
  --road-truck: #1f3566; --road-asphalt: rgba(22, 33, 62, 0.1); --road-line: rgba(22, 33, 62, 0.28); --road-alpha: 0.26;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background-color: var(--bg);
  background-image: radial-gradient(1100px 560px at 88% -8%, var(--bg-glow), transparent 62%);
  color: var(--ink);
  font: 400 16px/1.55 var(--font-body);
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
  padding-block: 0 24px;
}
.wrap { max-width: 1180px; margin: 0 auto; }
:focus-visible { outline: 3px solid var(--accent-2); outline-offset: 2px; }
h1, h2, h3, p, ul { margin: 0; }

/* ---------- intro ---------- */
.splash {
  position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; align-content: center;
  background-color: var(--bg);
  background-image: radial-gradient(600px 420px at 50% 42%, var(--bg-glow), transparent 70%);
  animation: splash-out 0.55s ease 2.1s forwards;
}
.splash-inner { display: grid; justify-items: center; gap: 18px; }
.splash-mark { width: 124px; height: 124px; overflow: visible; filter: drop-shadow(0 0 26px rgba(39, 211, 232, 0.35)); }
.s-tile { transform-box: fill-box; transform-origin: center; animation: pop 0.6s cubic-bezier(0.2, 0.9, 0.3, 1.2) 0.05s both; }
.s-f { fill: none; stroke: #fff; stroke-width: 5; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 100 100; animation: draw 0.7s ease 0.45s both; }
.s-f2 { animation-delay: 0.85s; animation-duration: 0.4s; }
.s-dot { fill: #fff; transform-box: fill-box; transform-origin: center; animation: pop 0.35s ease 1.05s both; }
.s-ring { fill: none; stroke: #fff; stroke-width: 1.5; opacity: 0; transform-box: fill-box; transform-origin: center; animation: ping 1.1s ease-out 1.2s forwards; }
.splash-word { display: flex; gap: 0.3em; font: 700 2rem/1 var(--font-display); letter-spacing: -0.01em; color: var(--ink); }
.splash-word span { animation: lift 0.5s ease both; }
.splash-word span:nth-child(1) { animation-delay: 1.1s; }
.splash-word span:nth-child(2) { animation-delay: 1.25s; }
.splash-tag { color: var(--ink-2); font-size: 0.95rem; animation: lift 0.5s ease 1.5s both; }
@keyframes splash-out { to { opacity: 0; visibility: hidden; } }
@keyframes pop { from { opacity: 0; transform: scale(0.6); } to { opacity: 1; transform: scale(1); } }
@keyframes draw { from { stroke-dashoffset: 100; opacity: 0; } 1% { opacity: 1; } to { stroke-dashoffset: 0; opacity: 1; } }
@keyframes ping { from { opacity: 0.9; transform: scale(1); } to { opacity: 0; transform: scale(3.4); } }
@keyframes lift { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* ---------- highway background ---------- */
.road {
  position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 18%, #000 82%, transparent);
  mask-image: linear-gradient(to bottom, transparent, #000 18%, #000 82%, transparent);
}
.road::before { content: ""; position: absolute; left: 0; right: 0; top: 18%; height: 66%; background: var(--road-asphalt); }
.lane-line {
  position: absolute; left: 0; right: 0; height: 3px; filter: blur(1.5px);
  background: repeating-linear-gradient(90deg, var(--road-line) 0 46px, transparent 46px 110px);
  animation: dash 1.1s linear infinite;
}
@keyframes dash { to { background-position: 110px 0; } }
.truck { position: absolute; left: 0; width: var(--w); color: var(--road-truck); opacity: var(--road-alpha); animation: drive var(--t) linear infinite; animation-delay: var(--d); will-change: transform; }
.truck svg { display: block; width: 100%; height: auto; }
.truck.rev { animation-name: drive-rev; }
.truck.rev svg { transform: scaleX(-1); }
@keyframes drive { from { transform: translateX(-120%); } to { transform: translateX(calc(100vw + 20%)); } }
@keyframes drive-rev { from { transform: translateX(calc(100vw + 20%)); } to { transform: translateX(-120%); } }
.wrap { position: relative; z-index: 1; }

/* ---------- header ---------- */
.top { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-block: 20px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; }
.brand svg { width: 40px; height: 40px; flex: none; overflow: visible; }
.brand-name { font: 700 1.3rem/1 var(--font-display); letter-spacing: -0.01em; }
.h-ring { fill: none; stroke: #fff; stroke-width: 1.5; opacity: 0; transform-box: fill-box; transform-origin: center; animation: ping 2.8s ease-out 3.4s infinite; }
.skins { display: flex; gap: 2px; padding: 3px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); }
.skins button {
  display: flex; align-items: center; gap: 8px; border: 0; background: none; color: var(--ink-2);
  font: 500 0.875rem/1 var(--font-body); padding: 8px 12px 8px 9px; border-radius: 999px; cursor: pointer;
}
.skins button:hover { color: var(--ink); }
.skins button[aria-pressed="true"] { background: var(--accent); color: var(--on-accent); }
.sw { width: 16px; height: 16px; flex: none; border-radius: 50%; border: 1px solid var(--ink-2); }
.sw-night { background: linear-gradient(135deg, #06172b 50%, #27d3e8 50%); }
.sw-slate { background: linear-gradient(135deg, #a9b5c8 50%, #1f3566 50%); }
.sw-light { background: linear-gradient(135deg, #ffffff 50%, #1565d8 50%); }
@media (max-width: 520px) { .skins button span.name { display: none; } .skins button { padding: 8px; } }

/* ---------- hero ---------- */
.hero { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 40px; align-items: start; padding-block: 28px 56px; }
@media (max-width: 980px) { .hero { grid-template-columns: minmax(0, 1fr); gap: 32px; } }
.hero-copy { display: grid; gap: 20px; min-width: 0; }
h1 { font: 700 clamp(2rem, 4.2vw, 3.1rem)/1.08 var(--font-display); letter-spacing: -0.02em; text-wrap: balance; }
.lead { color: var(--ink-2); font-size: 1.075rem; max-width: 46ch; }
.rise { animation: rise 0.8s cubic-bezier(0.2, 0.7, 0.2, 1) both; animation-delay: calc(1.85s + var(--i, 0) * 0.1s); }
@keyframes rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }

.signin { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 20px; box-shadow: var(--shadow); display: grid; gap: 14px; max-width: 420px; }
.signin h2 { font: 600 1.1rem/1.2 var(--font-display); }
.field { display: grid; gap: 6px; font: 500 0.875rem/1.2 var(--font-body); color: var(--ink-2); }
input {
  font: 400 1rem/1.3 var(--font-body); color: var(--ink); background: var(--surface-2);
  border: 1px solid var(--line); border-radius: 10px; padding: 11px 12px; width: 100%;
}
input:focus-visible { border-color: var(--accent); }
.btn { font: 600 1rem/1.2 var(--font-body); background: var(--accent); color: var(--on-accent); border: 0; border-radius: 10px; padding: 12px 16px; cursor: pointer; }
.btn:hover { filter: brightness(1.08); }
.note { color: var(--ink-2); font-size: 0.875rem; min-height: 1.3em; }

/* ---------- sample dashboard ---------- */
.preview { display: grid; gap: 10px; min-width: 0; }
.sample-note { color: var(--ink-2); font-size: 0.875rem; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 560px) { .grid { grid-template-columns: minmax(0, 1fr); } }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 18px; box-shadow: var(--shadow); min-width: 0; display: grid; gap: 8px; align-content: start; }
.card.navy { background: linear-gradient(160deg, var(--navy-1), var(--navy-2)); border-color: transparent; color: var(--on-navy); }
.card h3 { font: 600 0.9rem/1.3 var(--font-body); color: var(--ink-2); }
.card.navy h3, .card.navy .of, .card.navy .sub { color: var(--on-navy-2); }
.kpi { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.big { font: 700 2.5rem/1 var(--font-display); font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
.big.sm { font-size: 2rem; }
.of { color: var(--ink-2); font-size: 0.95rem; }
.sub { font-size: 0.9rem; color: var(--ink-2); }
svg.chart { width: 100%; height: auto; display: block; overflow: visible; }
.chart text { font-family: var(--font-body); font-variant-numeric: tabular-nums; }
.grid-line { stroke: var(--line); stroke-width: 1; }
.ax { fill: var(--ink-2); font-size: 11px; }
.bar { fill: var(--bar); transform-box: fill-box; transform-origin: center bottom; animation: grow 0.7s cubic-bezier(0.2, 0.8, 0.2, 1) both; animation-delay: calc(2.3s + var(--i) * 0.07s); }
@keyframes grow { from { transform: scaleY(0); } to { transform: scaleY(1); } }
.line { fill: none; stroke: #5ce1f0; stroke-width: 2.5; stroke-linecap: round; stroke-dasharray: 100 100; animation: draw 1.3s ease 2.3s both; }
.area { animation: lift 0.8s ease 3s both; }
.pt { fill: #5ce1f0; animation: pop 0.4s ease both; }
.pt.p1 { animation-delay: 2.9s; } .pt.p2 { animation-delay: 3.2s; } .pt.p3 { animation-delay: 3.5s; }
.halo { fill: rgba(92, 225, 240, 0.25); animation: pop 0.4s ease 3.5s both; }
.spark-grid { stroke: rgba(255, 255, 255, 0.12); stroke-width: 1; }

.donut { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.donut svg { width: 128px; height: 128px; flex: none; }
.seg { fill: none; stroke-width: 14; stroke-dasharray: var(--d) 100; stroke-dashoffset: var(--o); animation: seg 0.9s ease 2.4s both; }
@keyframes seg { from { stroke-dasharray: 0 100; } to { stroke-dasharray: var(--d) 100; } }
.d-num { fill: var(--ink); font: 700 22px var(--font-display); }
.d-lab { fill: var(--ink-2); font-size: 9px; }
.legend { list-style: none; padding: 0; display: grid; gap: 8px; flex: 1; min-width: 120px; }
.legend li { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; }
.legend b { margin-left: auto; font-variant-numeric: tabular-nums; }
.dot { width: 10px; height: 10px; border-radius: 50%; flex: none; }

.tyres { list-style: none; padding: 0; display: grid; gap: 0; }
.tyres li { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; align-items: center; gap: 10px; padding: 10px 0; border-top: 1px solid var(--line); }
.tyres li:first-child { border-top: 0; }
.t-id b { display: block; font-weight: 600; font-size: 0.95rem; }
.t-id span { color: var(--ink-2); font-size: 0.8rem; }
.t-val { text-align: right; font-size: 0.85rem; line-height: 1.3; font-variant-numeric: tabular-nums; }
.pill { font: 600 0.75rem/1 var(--font-body); padding: 5px 10px; border-radius: 999px; min-width: 46px; text-align: center; }
.pill.bad { background: var(--warn-bg); color: var(--warn); }
.pill.ok { background: var(--good-bg); color: var(--good); }

/* ---------- features ---------- */
.features { display: grid; gap: 22px; padding-block: 8px 48px; }
.features h2 { font: 700 1.6rem/1.2 var(--font-display); letter-spacing: -0.01em; }
.f-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 28px; }
.f-item { display: grid; gap: 10px; align-content: start; min-width: 0; }
.f-icon { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: var(--surface); border: 1px solid var(--line); color: var(--accent); }
.f-icon svg { width: 22px; height: 22px; }
.f-item h3 { font: 600 1.05rem/1.3 var(--font-display); }
.f-item p { color: var(--ink-2); max-width: 40ch; }

.foot { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; padding-block: 20px 8px; border-top: 1px solid var(--line); color: var(--ink-2); font-size: 0.875rem; }
.foot svg { width: 24px; height: 24px; }
.foot b { color: var(--ink); font-family: var(--font-display); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; }
  .splash { display: none; }
  .truck { display: none; }
  html { scroll-behavior: auto; }
}