:root{
  --dark:#23262B;      /* đen than */
  --steel:#3A3F46;     /* xám thép */
  --mid:#6E747D;       /* xám vừa */
  --bg:#F1F2F4;        /* xám nền nhạt */
  --line:#DADDE1;
  --red:#D0342C;       /* đỏ điểm nhấn - hotline */
  --white:#FFFFFF;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  font-family:'Be Vietnam Pro',sans-serif;
  font-size:18px;line-height:1.6;
  color:var(--dark);background:var(--bg);
}
h1,h2,h3,.display{font-family:'Anton',sans-serif;font-weight:400;letter-spacing:.5px}
img{max-width:100%;display:block}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.btn{
  display:inline-block;padding:16px 28px;border-radius:10px;
  font-size:19px;font-weight:700;text-decoration:none;border:none;cursor:pointer;
  transition:transform .12s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn:focus-visible{outline:4px solid var(--red);outline-offset:3px}
.btn-red{background:var(--red);color:#fff;box-shadow:0 4px 0 #96231d}
.btn-dark{background:var(--dark);color:#fff;box-shadow:0 4px 0 #000}
.btn-white{background:#fff;color:var(--dark);box-shadow:0 4px 0 #b9bdc3}

/* ── Thanh trên cùng ── */
.topbar{background:var(--dark);color:#C9CDD3;font-size:16px;padding:8px 0}
.topbar .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.topbar b{color:#fff}

/* ── Menu ── */
nav{background:#fff;border-bottom:3px solid var(--dark);position:sticky;top:0;z-index:50}
nav .wrap{display:flex;align-items:center;justify-content:space-between;padding-top:12px;padding-bottom:12px;flex-wrap:wrap;gap:10px}
.logo{font-family:'Anton',sans-serif;font-size:24px;color:var(--dark);text-decoration:none}
.logo span{color:var(--red)}
.menu{display:flex;gap:6px;flex-wrap:wrap}
.menu a{text-decoration:none;font-weight:600;font-size:17px;padding:10px 14px;border-radius:8px;color:var(--steel)}
.menu a:hover{background:var(--bg);color:var(--dark)}
.menu a:focus-visible{outline:3px solid var(--dark);outline-offset:2px}

/* ── Biển hiệu (hero) ── */
.hero{
  background:var(--steel);
  background-image:
    linear-gradient(160deg, rgba(255,255,255,.06) 0%, transparent 40%),
    radial-gradient(ellipse at 85% 90%, rgba(0,0,0,.35), transparent 55%);
  color:#fff;padding:56px 0 64px;
}
.sign{
  border:5px solid #9BA1A9;border-radius:14px;
  padding:40px 28px 44px;text-align:center;position:relative;
  background:var(--dark);
  box-shadow:inset 0 0 0 3px #14161a, 0 14px 34px rgba(0,0,0,.45);
}
.sign::before,.sign::after,.sign .bolt-a,.sign .bolt-b{
  content:"";position:absolute;width:15px;height:15px;border-radius:50%;
  background:radial-gradient(circle at 35% 35%, #f2f4f6, #7d838b 70%);
  box-shadow:0 1px 3px rgba(0,0,0,.6);
}
.sign::before{top:10px;left:10px}
.sign::after{top:10px;right:10px}
.sign .bolt-a{bottom:10px;left:10px}
.sign .bolt-b{bottom:10px;right:10px}
.sign .eyebrow{
  display:inline-block;background:var(--red);color:#fff;
  font-weight:700;font-size:16px;letter-spacing:2px;
  padding:6px 18px;border-radius:999px;margin-bottom:18px;text-transform:uppercase;
}
.sign h1{
  font-size:clamp(40px,7.5vw,80px);color:#fff;text-transform:uppercase;
  line-height:1.05;text-shadow:3px 3px 0 #000;
}
.sign h1 small{display:block;font-size:.45em;color:#B9BEC6;letter-spacing:4px}
.sign .sub{font-size:clamp(18px,2.5vw,23px);margin-top:14px;color:#D5D9DF;font-weight:500}
.sign .slogan{
  display:inline-block;margin-top:10px;font-family:'Anton',sans-serif;
  font-size:clamp(18px,3vw,26px);color:#fff;
  border-bottom:3px solid var(--red);padding-bottom:4px;letter-spacing:1px;
}
.sign .hotline{
  margin-top:26px;display:inline-flex;align-items:center;gap:12px;
  background:#fff;color:var(--red);border-radius:12px;
  padding:14px 26px;text-decoration:none;
  font-family:'Anton',sans-serif;font-size:clamp(26px,4vw,40px);
  box-shadow:0 6px 0 rgba(0,0,0,.4);
}
.sign .hotline small{
  display:block;font-family:'Be Vietnam Pro',sans-serif;
  font-size:14px;color:var(--dark);font-weight:600;text-align:left;line-height:1.3;
}
.hero-actions{display:flex;gap:14px;justify-content:center;margin-top:28px;flex-wrap:wrap}

/* ── Tiêu đề mục ── */
section{padding:64px 0}
.sec-head{text-align:center;margin-bottom:40px}
.sec-head .tag{
  display:inline-block;background:var(--dark);color:#fff;
  font-weight:700;font-size:15px;letter-spacing:2px;text-transform:uppercase;
  padding:5px 16px;border-radius:999px;margin-bottom:12px;
}
.sec-head h2{font-size:clamp(30px,5vw,44px);color:var(--dark);text-transform:uppercase}
.sec-head p{max-width:640px;margin:10px auto 0;color:var(--mid)}

/* ── Dịch vụ ── */
.services{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.card{
  background:#fff;border:2px solid var(--line);border-radius:16px;
  padding:28px 24px;text-align:center;
  transition:transform .15s ease, border-color .15s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--steel)}
.card .ico{
  width:76px;height:76px;margin:0 auto 16px;border-radius:50%;
  background:var(--dark);display:flex;align-items:center;justify-content:center;
}
.card .ico svg{width:40px;height:40px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:23px;color:var(--dark);margin-bottom:8px}
.card p{font-size:16.5px;color:var(--mid)}
.card .note{margin-top:12px;font-weight:700;color:var(--red);font-size:16px}

/* ── Cứu hộ ── */
.rescue{background:var(--red);color:#fff;padding:36px 0}
.rescue .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.rescue h2{font-size:clamp(26px,4vw,38px);text-transform:uppercase}
.rescue p{font-size:18px;opacity:.95}
.rescue .btn{background:#fff;color:var(--red);box-shadow:0 4px 0 rgba(0,0,0,.3);font-size:24px;font-family:'Anton',sans-serif;font-weight:400}

/* ── Về tiệm ── */
.why{background:#fff}
.about-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:36px;align-items:center;margin-bottom:44px}
@media(max-width:800px){.about-grid{grid-template-columns:1fr}}
.about-photo{border-radius:16px;overflow:hidden;border:3px solid var(--dark);box-shadow:10px 10px 0 var(--line)}
.about-photo img{width:100%;height:100%;object-fit:cover}
.about-text h3{font-size:28px;color:var(--dark);margin-bottom:12px;text-transform:uppercase}
.about-text p{color:var(--steel);margin-bottom:12px}
.about-text .quote{
  border-left:5px solid var(--red);padding:8px 16px;background:var(--bg);
  font-weight:600;font-style:italic;border-radius:0 10px 10px 0;
}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;text-align:center}
.stat{padding:26px 16px;border-radius:16px;background:var(--bg);border:2px solid var(--line)}
.stat .num{font-family:'Anton',sans-serif;font-size:50px;color:var(--red);line-height:1}
.stat .lbl{margin-top:8px;font-weight:600;color:var(--steel)}

/* ── Đặt lịch ── */
.booking{background:var(--dark);color:#fff}
.booking .sec-head .tag{background:var(--red)}
.booking .sec-head h2{color:#fff}
.booking .sec-head p{color:#B9BEC6}
form{
  max-width:640px;margin:0 auto;background:#fff;color:var(--dark);
  border-radius:18px;padding:32px 28px;box-shadow:0 14px 40px rgba(0,0,0,.4);
}
.field{margin-bottom:20px}
label{display:block;font-weight:700;margin-bottom:8px;font-size:17px}
input,select,textarea{
  width:100%;padding:15px 16px;font-size:18px;
  border:2px solid #C4C9CF;border-radius:10px;
  font-family:'Be Vietnam Pro',sans-serif;background:#fff;
}
input:focus,select:focus,textarea:focus{outline:3px solid var(--red);border-color:var(--dark)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:560px){.two{grid-template-columns:1fr}}
form .btn{width:100%;font-size:21px}
.ok-msg{
  display:none;margin-top:18px;padding:16px;border-radius:10px;
  background:#E8F6E9;border:2px solid #3C9B47;color:#20602A;font-weight:600;
}
.ok-msg .send-actions{display:flex;gap:12px;flex-wrap:wrap;margin:14px 0 10px}
.ok-msg .send-actions .btn{flex:1;min-width:160px;text-align:center;font-size:18px}
.ok-msg small{display:block;font-weight:500;color:var(--steel);line-height:1.5}

/* ── Phụ tùng ── */
.parts{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.part{
  background:#fff;border:2px solid var(--line);border-radius:16px;overflow:hidden;
  display:flex;flex-direction:column;
}
.part .thumb{
  height:120px;background:var(--bg);
  display:flex;align-items:center;justify-content:center;
  border-bottom:2px solid var(--line);
}
.part .thumb svg{width:56px;height:56px;stroke:var(--steel);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.part .body{padding:18px;display:flex;flex-direction:column;gap:6px;flex:1}
.part h3{font-size:19px;color:var(--dark);font-family:'Be Vietnam Pro',sans-serif;font-weight:700}
.part .price{font-family:'Anton',sans-serif;font-size:24px;color:var(--red)}
.part .btn{margin-top:auto;padding:12px;font-size:17px;text-align:center}
.ship-note{
  text-align:center;margin-top:26px;font-weight:600;color:var(--steel);
  background:#fff;border:2px dashed var(--line);border-radius:12px;padding:14px;
}

/* ── Chân trang ── */
footer{background:var(--dark);color:#C9CDD3;padding:48px 0 110px}
.foot{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:30px}
footer h3{color:#fff;font-size:22px;margin-bottom:12px;text-transform:uppercase}
footer p{font-size:16.5px;margin-bottom:6px}
footer a{color:#fff}
.hours td{padding:3px 12px 3px 0;font-size:16.5px}

/* ── Thanh gọi nhanh (mobile) ── */
.callbar{position:fixed;bottom:0;left:0;right:0;z-index:60;display:flex;gap:2px}
.callbar a{flex:1;text-align:center;padding:16px 8px;font-weight:700;font-size:18px;text-decoration:none}
.callbar .c1{background:var(--red);color:#fff}
.callbar .c2{background:#0068FF;color:#fff}
@media(min-width:900px){.callbar{display:none} footer{padding-bottom:48px}}