/* Drivie — website. Cùng ngôn ngữ thiết kế với app: nền "đường đêm",
   đỏ → cam (CTA), vàng vạch đường, thẻ kính mờ, chữ Be Vietnam Pro. */

@font-face { font-family: 'Be Vietnam Pro'; src: url('assets/fonts/BeVietnamPro-Regular.ttf') format('truetype'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Be Vietnam Pro'; src: url('assets/fonts/BeVietnamPro-Medium.ttf') format('truetype'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'Be Vietnam Pro'; src: url('assets/fonts/BeVietnamPro-SemiBold.ttf') format('truetype'); font-weight: 600; font-display: swap; }
@font-face { font-family: 'Be Vietnam Pro'; src: url('assets/fonts/BeVietnamPro-Bold.ttf') format('truetype'); font-weight: 700 800; font-display: swap; }
@font-face { font-family: 'Barlow Condensed'; src: url('assets/fonts/BarlowCondensed-SemiBold.ttf') format('truetype'); font-weight: 600; font-display: swap; }

:root {
  --bg-top: #0B1016;
  --bg-bottom: #131B24;
  --ink: #141B22;
  --red: #E5392B;
  --orange: #FF7A2F;
  --amber: #FFC23D;
  --positive: #4CD995;
  --text: #F5F7FA;
  --text-2: rgba(230, 235, 242, .70);
  --text-3: rgba(230, 235, 242, .50);
  --glass: rgba(255, 255, 255, .08);
  --glass-strong: rgba(255, 255, 255, .12);
  --glass-border: rgba(255, 255, 255, .15);
  --cta: linear-gradient(90deg, var(--red), var(--orange));
  --title: linear-gradient(180deg, #FFFFFF, #FFE3A3);
  --radius: 20px;
  --max: 1160px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, var(--bg-top), var(--bg-bottom) 60%, var(--bg-top));
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ---------- Thanh trên ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  background: rgba(11, 16, 22, .72);
  border-bottom: 1px solid rgba(255, 255, 255, .06);
}
.nav .wrap { display: flex; align-items: center; gap: 32px; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; letter-spacing: -.3px; }
.brand img { width: 34px; height: 34px; border-radius: 9px; border: 1px solid var(--glass-border); }
.nav-links { display: flex; gap: 26px; margin-left: auto; font-size: 15px; color: var(--text-2); }
.nav-links a:hover { color: var(--text); }
.nav .btn { padding: 10px 18px; font-size: 14px; }
@media (max-width: 860px) { .nav-links { display: none; } .nav .btn { margin-left: auto; } }

/* ---------- Nút ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 24px; border-radius: 14px;
  font-weight: 600; font-size: 16px;
  transition: transform .15s ease, box-shadow .2s ease, background .2s;
}
.btn-cta { background: var(--cta); color: #fff; box-shadow: 0 10px 30px rgba(229, 57, 43, .35); }
.btn-cta:hover { transform: translateY(-1px); box-shadow: 0 14px 36px rgba(229, 57, 43, .45); }
.btn-glass { background: var(--glass); border: 1px solid var(--glass-border); }
.btn-glass:hover { background: var(--glass-strong); }
.btn svg { width: 22px; height: 22px; flex: none; }
.store small { display: block; font-size: 11px; font-weight: 500; opacity: .75; line-height: 1.1; }
.store span { display: block; line-height: 1.2; }

/* ---------- Hero: đường đêm ---------- */
.hero { position: relative; min-height: 760px; overflow: hidden; }
.road { position: absolute; inset: 0; pointer-events: none; }
.road::before { /* đèn hậu đỏ + đèn đường vàng loang */
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(520px 380px at 12% 8%, rgba(229, 57, 43, .30), transparent 70%),
    radial-gradient(480px 360px at 92% 4%, rgba(255, 194, 61, .18), transparent 70%);
}
.road svg { position: absolute; left: 50%; top: 0; transform: translateX(-50%); width: 1600px; height: 100%; }
.lane { stroke-dasharray: 26 34; animation: lane 1.1s linear infinite; }
@keyframes lane { to { stroke-dashoffset: -60; } }
@media (prefers-reduced-motion: reduce) { .lane, .float { animation: none !important; } }

.hero .wrap { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; padding-top: 90px; padding-bottom: 80px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: 999px; font-size: 13px; font-weight: 600;
  background: rgba(255, 194, 61, .12); color: var(--amber); border: 1px solid rgba(255, 194, 61, .25);
}
h1 {
  font-size: clamp(38px, 4.6vw, 58px); line-height: 1.1; letter-spacing: -1.2px; font-weight: 800;
  margin: 20px 0 18px;
  background: var(--title); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { font-size: 19px; color: var(--text-2); max-width: 540px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.get-row { display: flex; align-items: center; gap: 22px; margin-top: 34px; flex-wrap: wrap; }
.get-row .cta-row { margin-top: 0; flex-direction: column; gap: 12px; }
.hero-qr {
  display: flex; align-items: center; gap: 16px; padding: 12px 18px 12px 12px; border-radius: 20px;
  background: var(--glass); border: 1px solid var(--glass-border);
}
.hero-qr img { width: 112px; height: 112px; border-radius: 12px; background: #fff; padding: 6px; }
.hero-qr span { font-size: 13px; color: var(--text-2); line-height: 1.5; }
.hero-qr b { display: block; color: var(--text); font-size: 15px; margin-bottom: 2px; }
@media (max-width: 960px) { .hero-qr { display: none; } .get-row .cta-row { flex-direction: row; } }
.trust { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 30px; font-size: 14px; color: var(--text-3); }
.trust b { color: var(--text-2); font-weight: 600; }
.trust span::before { content: '✓'; color: var(--positive); margin-right: 6px; font-weight: 700; }

/* Khung điện thoại */
.phones { position: relative; height: 620px; }
.phone {
  position: absolute; width: 286px; aspect-ratio: 402 / 874;
  border-radius: 44px; padding: 10px;
  background: linear-gradient(160deg, #2A3540, #0E141A);
  border: 1px solid var(--glass-border);
  box-shadow: 0 40px 80px rgba(0, 0, 0, .55), 0 0 0 1px rgba(0, 0, 0, .4) inset;
}
.phone img { width: 100%; height: 100%; object-fit: cover; object-position: top; border-radius: 34px; }
.phone.back { left: 0; top: 70px; transform: rotate(-6deg); opacity: .9; }
.phone.front { right: 10px; top: 0; }
.float { animation: float 7s ease-in-out infinite; }
@keyframes float { 50% { translate: 0 -10px; } }
.glow { position: absolute; inset: 15% 10%; background: radial-gradient(circle, rgba(229, 57, 43, .45), transparent 65%); filter: blur(40px); }

@media (max-width: 960px) {
  .hero .wrap { grid-template-columns: 1fr; padding-top: 56px; }
  .phones { height: 520px; max-width: 460px; margin: 0 auto; width: 100%; }
  .phone { width: 230px; }
}

/* ---------- Khối tính năng ---------- */
section { position: relative; }
.section { padding: 110px 0; }
.kicker { color: var(--amber); font-weight: 600; font-size: 14px; letter-spacing: 1.6px; text-transform: uppercase; }
h2 { font-size: clamp(30px, 3.6vw, 44px); line-height: 1.15; letter-spacing: -.8px; font-weight: 800; margin: 12px 0 16px; }
.section-lead { color: var(--text-2); font-size: 18px; max-width: 640px; }
.center { text-align: center; }
.center .section-lead { margin: 0 auto; }

.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 56px; }
.card {
  background: var(--glass); border: 1px solid var(--glass-border); border-radius: var(--radius);
  padding: 28px; transition: background .2s, transform .2s;
}
.card:hover { background: var(--glass-strong); transform: translateY(-2px); }
.icon {
  width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; margin-bottom: 18px;
  background: var(--cta); box-shadow: 0 8px 22px rgba(229, 57, 43, .35);
}
.icon svg { width: 24px; height: 24px; stroke: #fff; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.icon.amber { background: linear-gradient(135deg, var(--amber), var(--orange)); box-shadow: 0 8px 22px rgba(255, 194, 61, .3); }
.icon.blue { background: linear-gradient(135deg, #3D8BFF, #2A5FD9); box-shadow: 0 8px 22px rgba(61, 139, 255, .3); }
.card h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.card p { color: var(--text-2); font-size: 15px; }
@media (max-width: 860px) { .pillars { grid-template-columns: 1fr; } }

/* Hàng tính năng xen kẽ chữ / ảnh */
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; padding: 70px 0; }
.feature.flip .feature-media { order: -1; }
.feature ul { list-style: none; margin-top: 26px; display: grid; gap: 14px; }
.feature li { display: flex; gap: 14px; color: var(--text-2); }
.feature li b { color: var(--text); font-weight: 600; }
.feature li::before {
  content: ''; flex: none; width: 22px; height: 22px; margin-top: 2px; border-radius: 7px;
  background: rgba(229, 57, 43, .16) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23FF7A2F' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5 9-10'/%3E%3C/svg%3E") center / 14px no-repeat;
}
.feature-media { position: relative; display: flex; justify-content: center; gap: 22px; }
.feature-media .phone { position: relative; width: 250px; }
.feature-media .phone.small { width: 210px; margin-top: 60px; }
.feature-media .glow { inset: 10% 0; }
.feature-media.amber .glow { background: radial-gradient(circle, rgba(255, 194, 61, .32), transparent 65%); }
@media (max-width: 960px) {
  .feature { grid-template-columns: 1fr; gap: 40px; padding: 50px 0; }
  .feature.flip .feature-media { order: 0; }
  .feature-media .phone { width: 200px; }
  .feature-media .phone.small { width: 170px; }
}

/* Chế độ lái: ảnh ngang */
.drive-shot {
  max-width: 880px; margin: 48px auto 0; border-radius: 28px; padding: 10px;
  background: linear-gradient(160deg, #2A3540, #0E141A); border: 1px solid var(--glass-border);
  box-shadow: 0 40px 90px rgba(0, 0, 0, .5);
}
.drive-shot img { border-radius: 20px; width: 100%; }
.drive-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 28px; }
.stat { background: var(--glass); border: 1px solid var(--glass-border); border-radius: 16px; padding: 18px 20px; }
.stat b { font-family: 'Barlow Condensed', sans-serif; font-size: 22px; font-weight: 600; display: block; color: var(--amber); letter-spacing: .3px; }
.stat span { color: var(--text-2); font-size: 14px; }
@media (max-width: 860px) { .drive-grid { grid-template-columns: 1fr 1fr; } }

/* Quyền riêng tư */
.privacy-box {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center;
  padding: 48px; border-radius: 28px;
  background: linear-gradient(135deg, rgba(76, 217, 149, .10), rgba(255, 255, 255, .04));
  border: 1px solid var(--glass-border);
}
.privacy-list { display: grid; gap: 14px; }
.privacy-list div { display: flex; gap: 14px; align-items: flex-start; padding: 16px 18px; border-radius: 14px; background: rgba(0, 0, 0, .18); }
.privacy-list b { display: block; font-weight: 600; }
.privacy-list span { color: var(--text-2); font-size: 14px; }
.privacy-list i { font-style: normal; font-size: 22px; line-height: 1.2; }
@media (max-width: 860px) { .privacy-box { grid-template-columns: 1fr; padding: 28px; } }

/* Câu hỏi thường gặp */
.faq { max-width: 820px; margin: 48px auto 0; display: grid; gap: 12px; }
.faq details { background: var(--glass); border: 1px solid var(--glass-border); border-radius: 16px; padding: 4px 22px; }
.faq summary { cursor: pointer; list-style: none; padding: 16px 0; font-weight: 600; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; color: var(--amber); font-size: 22px; line-height: 1; transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { color: var(--text-2); padding-bottom: 18px; }

/* Lời kêu gọi cuối */
.final {
  margin: 40px auto 110px; max-width: var(--max); padding: 70px 40px; border-radius: 32px; text-align: center;
  position: relative; overflow: hidden;
  background: radial-gradient(600px 300px at 50% 0%, rgba(229, 57, 43, .35), transparent 70%), var(--glass);
  border: 1px solid var(--glass-border);
}
.final img.logo { width: 88px; height: 88px; border-radius: 22px; margin: 0 auto 24px; border: 1px solid var(--glass-border); box-shadow: 0 0 60px rgba(20, 130, 255, .45); }
.final .cta-row { justify-content: center; }

/* Chân trang */
footer { border-top: 1px solid rgba(255, 255, 255, .06); padding: 40px 0 50px; color: var(--text-3); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 20px 32px; align-items: center; }
footer nav { display: flex; flex-wrap: wrap; gap: 22px; margin-left: auto; }
footer a:hover { color: var(--text); }

/* Hiện dần khi cuộn */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* Trang văn bản (chính sách, điều khoản) */
.doc { max-width: 780px; margin: 0 auto; padding: 70px 24px 100px; }
.doc h1 { font-size: 40px; margin-bottom: 8px; }
.doc .updated { color: var(--text-3); margin-bottom: 40px; }
.doc h2 { font-size: 22px; margin: 36px 0 12px; letter-spacing: -.2px; }
.doc p, .doc li { color: var(--text-2); margin-bottom: 12px; }
.doc ul { padding-left: 22px; }
.doc a { color: var(--amber); }