:root {
  --bg: #0a0b0d;
  --bg-soft: #11141a;
  --card: #151922;
  --line: #232937;
  --text: #e8ebf2;
  --muted: #9aa3b5;
  --car: #3e6ae1;
  --car-soft: #8fb0ff;
  --plutus: #2fbf8f;
  --plutus-soft: #8ee6c5;
  --trader: #f5a524;
  --trader-soft: #ffd27a;
  --radius: 18px;
  --wrap: 1160px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { line-height: 1.15; margin: 0; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.3rem, 5.2vw, 4rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.7rem); font-weight: 800; }
h3 { font-size: 1.05rem; font-weight: 600; }
p { margin: 0; }

.wrap { width: min(100% - 32px, var(--wrap)); margin-inline: auto; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; z-index: 100; background: var(--car); padding: 8px 12px; border-radius: 8px; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 11, 13, 0.78);
  backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.topbar-inner { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; text-decoration: none; }
.brand-dot { color: var(--muted); font-weight: 600; }
.brand.small { font-size: 1rem; font-weight: 700; }
.nav { display: flex; gap: 22px; margin-left: auto; }
.nav a { text-decoration: none; color: var(--muted); font-weight: 500; font-size: 0.95rem; }
.nav a:hover { color: var(--text); }
.lang { display: flex; gap: 2px; background: var(--bg-soft); border: 1px solid var(--line); border-radius: 999px; padding: 3px; }
.lang button {
  border: 0; background: transparent; color: var(--muted); font: 600 0.78rem/1 inherit;
  padding: 7px 9px; border-radius: 999px; cursor: pointer;
}
.lang button[aria-pressed="true"] { background: var(--text); color: var(--bg); }
.lang button:focus-visible, .btn:focus-visible, .product-card:focus-visible { outline: 2px solid var(--car-soft); outline-offset: 3px; }

/* ---------- common ---------- */
.eyebrow { text-transform: uppercase; letter-spacing: 0.14em; font-size: 0.78rem; font-weight: 700; color: var(--muted); margin-bottom: 14px; }
.lead { color: var(--muted); font-size: clamp(1.05rem, 1.6vw, 1.25rem); max-width: 760px; margin-top: 18px; }
.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 32px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 13px 22px; border-radius: 999px; font-weight: 600; text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-car { background: var(--car); color: #fff; box-shadow: 0 8px 30px -8px rgba(62, 106, 225, 0.7); }
.btn-plutus { background: var(--plutus); color: #06130e; box-shadow: 0 8px 30px -8px rgba(47, 191, 143, 0.6); }
.note { color: var(--muted); font-size: 0.92rem; }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; padding: 96px 0 72px; }
.hero::before {
  content: ""; position: absolute; inset: -30% -10% auto auto; width: 70vw; height: 70vw; max-width: 900px; max-height: 900px;
  background: radial-gradient(closest-side, rgba(62, 106, 225, 0.28), transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: ""; position: absolute; left: -15%; bottom: -40%; width: 60vw; height: 60vw; max-width: 760px; max-height: 760px;
  background: radial-gradient(closest-side, rgba(47, 191, 143, 0.16), transparent 70%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; }
.hero h1 { max-width: 900px; }
.product-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 56px; }
.product-card {
  display: flex; align-items: center; gap: 18px; padding: 22px 24px; border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
  border: 1px solid var(--line); text-decoration: none; transition: border-color 0.2s ease, transform 0.2s ease;
}
.product-card:hover { transform: translateY(-2px); }
.product-card.plutus:hover { border-color: rgba(47, 191, 143, 0.6); }
.product-card.car:hover { border-color: rgba(62, 106, 225, 0.7); }
.product-card img { border-radius: 14px; flex: none; }
.product-card h2 { font-size: 1.3rem; }
.product-card p { color: var(--muted); font-size: 0.95rem; margin-top: 4px; }
.product-card .arrow { margin-left: auto; color: var(--muted); font-size: 1.4rem; }

/* ---------- product sections ---------- */
.product { padding: 96px 0; border-top: 1px solid rgba(255, 255, 255, 0.05); }
.product.plutus { background: linear-gradient(180deg, rgba(47, 191, 143, 0.06), transparent 40%); }
.product.car { background: linear-gradient(180deg, rgba(62, 106, 225, 0.08), transparent 40%); }
.product-head { display: flex; align-items: center; gap: 18px; }
.product-head img { border-radius: 16px; }
.product-head .eyebrow { margin-bottom: 6px; }
.product.plutus .eyebrow { color: var(--plutus-soft); }
.product.car .eyebrow { color: var(--car-soft); }

.split { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: start; margin-top: 44px; }
.split.reverse { grid-template-columns: 1fr 1.1fr; }
.split.reverse .features { order: 2; }
.features { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.features li {
  display: flex; flex-direction: column; gap: 12px; padding: 20px; border-radius: 16px;
  background: var(--card); border: 1px solid var(--line);
}
.features svg {
  width: 36px; height: 36px; padding: 7px; border-radius: 10px;
  fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
}
.product.plutus .features svg { stroke: var(--plutus-soft); background: rgba(47, 191, 143, 0.12); }
.product.car .features svg { stroke: var(--car-soft); background: rgba(62, 106, 225, 0.15); }
.features p { color: var(--muted); font-size: 0.93rem; margin-top: 6px; }

/* ---------- video slot ---------- */
.video-slot { margin: 0; position: sticky; top: 96px; }
.video-slot video, .video-placeholder {
  width: 100%; aspect-ratio: 16 / 9; border-radius: var(--radius); border: 1px solid var(--line); background: #000;
}
.video-placeholder {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px;
  color: var(--muted); font-weight: 500; text-align: center; padding: 16px;
  background:
    radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.06), transparent 50%),
    linear-gradient(135deg, var(--bg-soft), #07080a);
}
.product.plutus .video-placeholder { box-shadow: inset 0 0 120px -40px rgba(47, 191, 143, 0.45); }
.product.car .video-placeholder { box-shadow: inset 0 0 120px -40px rgba(62, 106, 225, 0.55); }
.play {
  width: 64px; height: 64px; border-radius: 50%; border: 2px solid rgba(255, 255, 255, 0.35); position: relative;
}
.play::after {
  content: ""; position: absolute; left: 25px; top: 20px;
  border-left: 18px solid rgba(255, 255, 255, 0.75); border-top: 12px solid transparent; border-bottom: 12px solid transparent;
}

/* ---------- voice demo ---------- */
.voice-demo { display: flex; flex-direction: column; gap: 10px; margin-top: 32px; max-width: 640px; }
.bubble { padding: 12px 16px; border-radius: 16px; font-size: 0.98rem; width: fit-content; max-width: 100%; }
.bubble.user { background: var(--car); color: #fff; align-self: flex-end; border-bottom-right-radius: 4px; }
.bubble.ai { background: var(--card); border: 1px solid var(--line); border-bottom-left-radius: 4px; }
.bubble.tool { display: inline-flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--car-soft); background: rgba(62, 106, 225, 0.12); border: 1px dashed rgba(143, 176, 255, 0.4); }
.bubble .dot { width: 8px; height: 8px; border-radius: 50%; background: #3ddc84; box-shadow: 0 0 10px #3ddc84; }

/* ---------- AI steps ---------- */
.ai { padding: 96px 0; border-top: 1px solid rgba(255, 255, 255, 0.05); text-align: center; }
.ai .lead { margin-inline: auto; }
.steps { list-style: none; margin: 48px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; text-align: left; }
.steps li { padding: 24px; border-radius: 16px; background: var(--card); border: 1px solid var(--line); }
.steps .num {
  display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; margin-bottom: 14px;
  background: linear-gradient(135deg, var(--plutus), var(--car)); color: #fff; font-weight: 700;
}
.steps p { color: var(--muted); font-size: 0.93rem; margin-top: 6px; }

/* ---------- security ---------- */
.security { padding: 88px 0 96px; border-top: 1px solid rgba(255, 255, 255, 0.05); }
.sec-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 36px; }
.sec-grid div { padding: 22px; border-radius: 16px; border: 1px solid var(--line); background: linear-gradient(180deg, var(--card), transparent); }
.sec-grid p { color: var(--muted); font-size: 0.92rem; margin-top: 8px; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid rgba(255, 255, 255, 0.06); padding: 32px 0 40px; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; gap: 18px 28px; }
.footer nav { display: flex; gap: 18px; }
.footer nav a { color: var(--muted); text-decoration: none; }
.footer nav a:hover { color: var(--text); }
.legal { width: 100%; color: #6c7488; font-size: 0.8rem; }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .split, .split.reverse { grid-template-columns: 1fr; }
  .split.reverse .features { order: 0; }
  .video-slot { position: static; }
  .sec-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .nav { display: none; }
  .lang { margin-left: auto; }
  .hero { padding: 64px 0 48px; }
  .product-cards, .features, .steps, .sec-grid { grid-template-columns: 1fr; }
  .product, .ai, .security { padding: 64px 0; }
  .product-card .arrow { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .product-card { transition: none; }
}

/* Trader */
.btn-trader { background: var(--trader); color: #1a1204; box-shadow: 0 8px 30px -8px rgba(245, 165, 36, 0.6); }
.btn-ghost { background: transparent; color: var(--text, #eef0f3); border: 1px solid var(--line); }
.product-card.trader:hover { border-color: rgba(245, 165, 36, 0.6); }
.product.trader { background: linear-gradient(180deg, rgba(245, 165, 36, 0.06), transparent 40%); }
.product.trader .eyebrow { color: var(--trader-soft); }
.product.trader .features svg { stroke: var(--trader-soft); background: rgba(245, 165, 36, 0.12); }
.product.trader .video-placeholder { box-shadow: inset 0 0 120px -40px rgba(245, 165, 36, 0.45); }
.risk { margin-top: 20px; max-width: 760px; font-size: 0.85rem; line-height: 1.5; color: var(--muted, #9aa1ab); border-left: 3px solid var(--trader); padding-left: 12px; }
@media (max-width: 1080px) and (min-width: 761px) {
  .product-cards { grid-template-columns: repeat(2, 1fr); }
}