/* ===== CSS dùng chung cho toàn bộ website Xe Cưới Hải Đăng ===== */
/* ===== Màu & biến dùng chung ===== */
:root{
  --gold:#e3a81f; --gold-dark:#8a6200; --ink:#1d1d1f; --text:#333; --muted:#666;
  --bg:#f7f4ef; --white:#fff; --line:#ebe6dd; --max:1200px; --r:8px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
[id],[data-cat-section]{scroll-margin-top:125px}  /* tránh header dính che tiêu đề khi cuộn tới */
body{font-family:"Mulish",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;color:var(--text);background:var(--white);line-height:1.6;font-size:15px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit;cursor:pointer}
.wrap{max-width:var(--max);margin:0 auto;padding:0 16px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.ico{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}

/* ===== HEADER: logo + ô tìm xe + nút nhanh ===== */
.topbar{background:var(--ink);color:#ddd;font-size:.82rem}
.topbar .wrap{display:flex;justify-content:space-between;gap:12px;padding-top:6px;padding-bottom:6px}
.topbar a{color:var(--gold);font-weight:700}
header{position:sticky;top:0;z-index:40;background:var(--white);box-shadow:0 1px 0 var(--line)}
.head{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;font-size:1.15rem;color:var(--ink);white-space:nowrap}
.logo .mark{width:42px;height:42px;color:var(--ink);flex:none}
.logo .wm{display:flex;flex-direction:column;line-height:1}
.logo .wm small{font-size:.62rem;font-weight:700;letter-spacing:.32em;text-transform:uppercase;color:var(--gold-dark);margin-bottom:3px}
.logo .wm b{font-size:1.32rem;font-weight:800;letter-spacing:.04em;text-transform:uppercase;color:var(--ink)}
.search{flex:1;display:flex;max-width:520px;border:1px solid var(--line);border-radius:6px;overflow:hidden}
.search input{flex:1;border:0;padding:10px 14px;font:inherit;outline:none;min-width:0}
.search button{border:0;background:var(--gold);padding:0 14px;color:var(--ink)}
.quick{display:flex;gap:18px;margin-left:auto}
.quick a{display:flex;flex-direction:column;align-items:center;font-size:.75rem;color:var(--muted);gap:2px}
.quick a:hover{color:var(--gold-dark)}
.quick .hot{background:var(--gold);color:var(--ink);border-radius:6px;padding:6px 12px;font-weight:700}
/* Thanh danh mục xe (dùng để lọc lưới xe) */
.cats{border-top:1px solid var(--line)}
.cats ul{display:flex;list-style:none;overflow-x:auto;scrollbar-width:none}
.cats button{background:none;border:0;padding:12px 18px;font-weight:700;font-size:.88rem;color:var(--text);white-space:nowrap;border-bottom:2px solid transparent}
.cats button.on,.cats button:hover{color:var(--gold-dark);border-color:var(--gold)}
@media (max-width:900px){.quick a:not(.hot){display:none}.head{gap:12px}}
@media (max-width:600px){.search{display:none}.topbar .area{display:none}}

/* ===== HERO SLIDER ===== */
.hero{position:relative;height:clamp(380px,62vh,600px);overflow:hidden;background:#222}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .8s}
.slide.on{opacity:1}
.slide img{width:100%;height:100%;object-fit:cover;filter:grayscale(.15) brightness(.62)}
.hero-text{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;color:#fff;background:linear-gradient(90deg,rgba(0,0,0,.6),rgba(0,0,0,.15) 70%)}
.hero h1{font-size:clamp(2rem,6vw,3.8rem);font-weight:800;line-height:1.1;letter-spacing:.02em;text-transform:uppercase}
.hero h1 small{display:block;font-size:.42em;font-weight:600;letter-spacing:.04em;margin-top:12px;color:var(--gold)}
.hero p{max-width:520px;margin:16px 0 24px;font-size:1.05rem;color:#eee}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:6px;font-weight:800;border:2px solid var(--gold);background:var(--gold);color:var(--ink);transition:.2s}
.btn:hover{background:#cf9512;border-color:#cf9512}
.btn-line{background:transparent;color:#fff;border-color:#fff}
.btn-line:hover{background:#fff;color:var(--ink);border-color:#fff}
.dots{position:absolute;left:50%;bottom:18px;transform:translateX(-50%);display:flex;gap:8px}
.dots button{width:10px;height:10px;border-radius:50%;border:0;background:rgba(255,255,255,.5)}
.dots button.on{background:var(--gold);width:26px;border-radius:6px}
.tag{position:absolute;right:10px;bottom:10px;background:rgba(0,0,0,.55);color:#fff;font-size:.7rem;padding:2px 8px;border-radius:999px}

/* ===== Dải 4 lợi ích ===== */
.usp{background:var(--bg)}
.usp ul{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;list-style:none;padding:24px 0}
.usp li{display:flex;gap:12px;align-items:center}
.usp .ico{width:38px;height:38px;color:var(--gold-dark)}
.usp b{display:block;font-size:.9rem;text-transform:uppercase;color:var(--ink)}
.usp span{font-size:.82rem;color:var(--muted)}
@media (max-width:860px){.usp ul{grid-template-columns:repeat(2,1fr)}}

/* ===== Tiêu đề khối ===== */
section{padding:56px 0}
.sec-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:28px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(1.35rem,3vw,1.75rem);font-weight:800;color:var(--ink);display:flex;align-items:center;gap:14px}
.sec-head h2::before{content:"";width:36px;height:2px;background:var(--ink)}
.intro{color:var(--muted);max-width:820px;margin:-12px 0 28px}

/* ===== Lưới xe ===== */
.cars{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media (max-width:1000px){.cars{grid-template-columns:repeat(3,1fr)}}
@media (max-width:720px){.cars{grid-template-columns:repeat(2,1fr);gap:12px}}
.car{background:var(--white);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:.2s}
.car:hover{box-shadow:0 8px 24px rgba(0,0,0,.08);transform:translateY(-2px)}
.car[hidden]{display:none}
/* Khung ảnh cố định 4:3 – ảnh dọc/vuông được cắt vào giữa, thẻ luôn bằng nhau */
.car .pic{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg)}
.car .pic img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center}
.car .badge{position:absolute;left:10px;top:10px;background:var(--gold);color:var(--ink);font-size:.72rem;font-weight:800;padding:2px 8px;border-radius:4px}
.car-body{padding:14px;display:flex;flex-direction:column;gap:6px;flex:1}
.car h3{font-size:.98rem;font-weight:700;color:var(--ink);line-height:1.35;min-height:2.7em}
.car .meta{font-size:.8rem;color:var(--muted)}
.car .price{font-weight:800;color:var(--gold-dark);margin-top:auto}
.car-act{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line)}
.car-act a{padding:10px;text-align:center;font-size:.82rem;font-weight:700}
.car-act a:first-child{border-right:1px solid var(--line)}
.car-act a:hover{background:var(--bg);color:var(--gold-dark)}
.empty{display:none;text-align:center;color:var(--muted);padding:24px}

/* ===== Khối dịch vụ chia đôi ===== */
.split{display:grid;grid-template-columns:1fr 1fr;padding:0}
.split-l{background:var(--gold);padding:56px max(16px,calc((100vw - var(--max))/2 + 16px));padding-right:32px;display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center}
.split-l h2{font-size:clamp(1.4rem,3vw,2rem);font-weight:800;color:var(--ink);text-transform:uppercase;line-height:1.2}
.split-l p{color:#3b2d06;margin-top:8px}
.tiles{display:grid;grid-template-columns:repeat(3,96px);gap:2px;background:var(--line);border:6px solid var(--white);border-radius:4px}
.tiles a{background:var(--white);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;height:84px;font-size:.72rem;font-weight:800;text-align:center;color:var(--ink)}
.tiles a:hover{background:var(--bg)}
.tiles .ico{width:30px;height:30px}
.split-r{position:relative;min-height:320px}
.split-r img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
@media (max-width:900px){.split{grid-template-columns:1fr}.split-l{grid-template-columns:1fr;padding:40px 16px}.split-r{min-height:240px}}

/* ===== Tin tức kiểu tạp chí ===== */
.news{display:grid;grid-template-columns:1.2fr 1fr;gap:4px}
.news a{position:relative;display:block;overflow:hidden;background:var(--ink);color:#fff}
.news img{width:100%;height:100%;object-fit:cover;transition:.4s;opacity:.85}
.news a:hover img{transform:scale(1.04)}
.news .cap{position:absolute;left:0;bottom:0;right:0;padding:18px;background:linear-gradient(transparent,rgba(0,0,0,.8))}
.news .cap small{color:var(--gold);font-weight:800;font-size:.72rem;text-transform:uppercase}
.news .cap h3{font-size:1.02rem;line-height:1.35;margin-top:4px}
.news .big{grid-row:span 2;min-height:420px}
.news .big .cap{background:var(--gold);color:var(--ink);max-width:62%;bottom:24px;padding:22px}
.news .big .cap small{color:var(--ink)}
.news .big h3{font-size:1.2rem;text-transform:uppercase}
.news .sm{min-height:208px}
@media (max-width:760px){.news{grid-template-columns:1fr}.news .big{min-height:300px}.news .big .cap{max-width:none;bottom:0}}

/* ===== Dải hãng xe ===== */
.brands{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:22px 0}
.brands ul{display:flex;justify-content:space-around;flex-wrap:wrap;gap:16px;list-style:none}
.brands li{font-weight:800;letter-spacing:.12em;color:#9a948a;text-transform:uppercase;font-size:.95rem}

/* ===== FAQ + Báo giá ===== */
.two{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:start}
@media (max-width:900px){.two{grid-template-columns:1fr}}
details{border-bottom:1px solid var(--line);padding:14px 0}
summary{font-weight:700;color:var(--ink);cursor:pointer}
details p{color:var(--muted);margin-top:8px}
.quote{background:var(--ink);color:#fff;border-radius:var(--r);padding:28px}
.quote h2{font-size:1.35rem;font-weight:800;margin-bottom:6px}
.quote p{color:#bbb;margin-bottom:18px;font-size:.92rem}
.quote form{display:grid;gap:12px}
.quote label{display:grid;gap:4px;font-size:.85rem;color:#ddd}
.quote input,.quote select{font:inherit;padding:11px 12px;border-radius:6px;border:0}
.quote .btn{justify-content:center;margin-top:4px}

/* ===== Khu vực phục vụ ===== */
.areas{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin-top:18px}
.areas li{border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:.88rem}

/* ===== FOOTER ===== */
footer{background:var(--bg);padding:48px 0 100px;font-size:.88rem}
.foot{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:28px}
footer h3{font-size:.95rem;color:var(--ink);margin-bottom:12px;font-weight:800}
footer li{list-style:none;margin-bottom:8px;color:var(--muted)}
footer a:hover{color:var(--gold-dark)}
.copy{border-top:1px solid var(--line);margin-top:28px;padding-top:16px;color:var(--muted);text-align:center}
@media (max-width:800px){.foot{grid-template-columns:1fr 1fr}}

/* ===== Nút nổi Zalo / Gọi ===== */
.float{position:fixed;right:16px;bottom:20px;display:flex;flex-direction:column;gap:10px;z-index:50}
.float a{width:50px;height:50px;border-radius:50%;display:grid;place-items:center;color:#fff;box-shadow:0 4px 14px rgba(0,0,0,.25);font-weight:800;font-size:.75rem}
.float .zalo{background:#0068ff}
.float .call{background:#e53935;animation:ring 1.6s infinite}
@keyframes ring{0%,100%{box-shadow:0 0 0 0 rgba(229,57,53,.5)}50%{box-shadow:0 0 0 10px rgba(229,57,53,0)}}

/* ===== Trang con (dịch vụ, bảng giá, khu vực) ===== */
.cats a{display:block;padding:12px 18px;font-weight:700;font-size:.88rem;color:var(--text);white-space:nowrap;border-bottom:2px solid transparent}
.cats a.on,.cats a:hover{color:var(--gold-dark);border-color:var(--gold)}
.page-hero{position:relative;min-height:340px;display:flex;align-items:flex-end;color:#fff;background:#222;overflow:hidden;padding:0}
.page-hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:brightness(.55)}
.page-hero .wrap{position:relative;padding-top:48px;padding-bottom:40px}
.page-hero h1{font-size:clamp(1.8rem,5vw,3rem);font-weight:800;line-height:1.15;text-transform:uppercase;max-width:820px}
.page-hero p{max-width:640px;margin:12px 0 20px;color:#eee}
.crumbs{font-size:.82rem;color:#ddd;margin-bottom:10px}
.crumbs a{color:var(--gold)}
.content{max-width:860px}
.content h2{font-size:clamp(1.3rem,3vw,1.6rem);color:var(--ink);margin:36px 0 12px}
.content h3{font-size:1.1rem;color:var(--ink);margin:22px 0 8px}
.content p,.content li{margin-bottom:10px}
.content ul,.content ol{padding-left:22px;margin-bottom:12px}
.content table{width:100%;border-collapse:collapse;margin:12px 0 18px;font-size:.95rem}
.content th,.content td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.content th{background:var(--bg);color:var(--ink)}
.note{background:var(--bg);border-left:4px solid var(--gold);padding:14px 16px;border-radius:6px;margin:16px 0}
.cta{background:var(--ink);color:#fff;border-radius:var(--r);padding:24px;margin:32px 0;display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between}
.cta b{font-size:1.15rem}
.cta .btns{display:flex;flex-wrap:wrap;gap:10px}
.related{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin-top:14px}
.related a{border:1px solid var(--line);border-radius:var(--r);padding:16px;font-weight:700;color:var(--ink);background:var(--white)}
.related a:hover{border-color:var(--gold);color:var(--gold-dark)}
.related small{display:block;font-weight:400;color:var(--muted);margin-top:4px}
.car a.pic{display:block}
/* Bộ ảnh xe thật */
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:8px;margin:10px 0 20px}
.gallery a{position:relative;display:block;aspect-ratio:3/4;overflow:hidden;border-radius:6px;background:var(--bg)}
.gallery img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .3s}
.gallery a:hover img{transform:scale(1.04)}
@media (max-width:600px){.gallery{grid-template-columns:repeat(2,1fr)}}