:root{
    --hd-red:#D90000;
    --hd-dark:#111111;
    --hd-white:#FFFFFF;
    --hd-gray:#F5F5F5;
}

*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    font-family:'Kanit',sans-serif;
    background:#fff;
    color:#222;
}

.container{
    width:1200px;
    max-width:95%;
    margin:auto;
}

header{
    background:#111;
    color:#fff;
    padding:15px 0;
}

.logo{
    font-size:32px;
    font-weight:700;
    color:#D90000;
}

.hero{
    background:linear-gradient(
        rgba(0,0,0,.75),
        rgba(0,0,0,.75)
    );
    min-height:650px;
    color:#fff;
    display:flex;
    align-items:center;
}

.hero h1{
    font-size:72px;
    line-height:1.1;
}

.hero span{
    color:#D90000;
}

.btn-red{
    display:inline-block;
    padding:15px 30px;
    background:#D90000;
    color:#fff;
    text-decoration:none;
    border-radius:8px;
}

.btn-white{
    display:inline-block;
    padding:15px 30px;
    border:1px solid #fff;
    color:#fff;
    text-decoration:none;
    border-radius:8px;
}

:root{
    --red:#D90000;
    --red-dark:#A80000;
    --black:#080808;
    --dark:#111111;
    --white:#ffffff;
    --gray:#f4f4f4;
    --text:#222;
}

*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    font-family:'Kanit',sans-serif;
    color:var(--text);
    background:#fff;
}

a{
    text-decoration:none;
}

.container{
    width:1200px;
    max-width:94%;
    margin:auto;
}

.hd-header{
    background:#080808;
    color:#fff;
    padding:16px 0;
    position:sticky;
    top:0;
    z-index:99;
}

.hd-nav{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
}

.hd-logo{
    font-size:28px;
    font-weight:800;
    line-height:1;
    color:#fff;
}

.hd-logo span{
    color:var(--red);
}

.hd-logo small{
    display:block;
    font-size:13px;
    font-weight:400;
    color:#ccc;
    margin-top:4px;
}

.hd-nav nav{
    display:flex;
    gap:24px;
}

.hd-nav nav a{
    color:#fff;
    font-size:15px;
}

.hd-nav nav a:hover{
    color:var(--red);
}

.hd-phone{
    font-size:18px;
    font-weight:700;
    color:#fff;
    text-align:right;
}

.hd-hero{
    min-height:680px;
    background:
    linear-gradient(90deg,rgba(0,0,0,.92),rgba(0,0,0,.65),rgba(0,0,0,.25)),
    radial-gradient(circle at right,#5a0000,#111);
    color:#fff;
    display:flex;
    align-items:center;
}

.hero-grid{
    display:grid;
    grid-template-columns:1.1fr .9fr;
    gap:40px;
    align-items:center;
}

.badge{
    display:inline-block;
    background:rgba(217,0,0,.18);
    border:1px solid rgba(255,255,255,.18);
    padding:8px 18px;
    border-radius:50px;
    color:#fff;
    margin-bottom:20px;
}

.hero-text h1{
    font-size:86px;
    line-height:.95;
    font-weight:900;
    letter-spacing:1px;
}

.hero-text h1 span{
    color:var(--red);
}

.hero-text h2{
    font-size:36px;
    margin-top:20px;
}

.hero-text p{
    font-size:18px;
    color:#ddd;
    margin-top:12px;
}

.hero-icons{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:12px;
    margin:28px 0;
}

.hero-icons div{
    border:1px solid rgba(255,255,255,.18);
    padding:12px;
    border-radius:14px;
    text-align:center;
    background:rgba(255,255,255,.04);
}

.hero-btns{
    display:flex;
    gap:14px;
    flex-wrap:wrap;
}

.btn-red,
.btn-dark{
    display:inline-block;
    padding:14px 28px;
    border-radius:10px;
    font-weight:700;
    transition:.25s;
}

.btn-red{
    background:var(--red);
    color:#fff;
}

.btn-red:hover{
    background:#ff1414;
    transform:translateY(-2px);
}

.btn-dark{
    border:1px solid rgba(255,255,255,.5);
    color:#fff;
}

.btn-dark:hover{
    background:#fff;
    color:#111;
}

.full{
    display:block;
    text-align:center;
    margin-top:20px;
}

.hero-card{
    display:flex;
    justify-content:center;
}

.phone-box{
    width:360px;
    min-height:480px;
    border-radius:36px;
    background:#fff;
    color:#111;
    padding:36px;
    box-shadow:0 30px 80px rgba(0,0,0,.5);
    display:flex;
    flex-direction:column;
    justify-content:center;
    border:8px solid #222;
}

.phone-box h3{
    font-size:32px;
    color:var(--red);
}

.phone-box p{
    margin:15px 0 25px;
    color:#555;
}

.phone-box a{
    background:var(--red);
    color:#fff;
    display:block;
    padding:15px;
    text-align:center;
    border-radius:12px;
    font-weight:700;
}

.section{
    padding:70px 0;
}

.white{
    background:#fff;
}

.gray{
    background:var(--gray);
}

.section-title{
    text-align:center;
    font-size:38px;
    margin-bottom:36px;
    color:#111;
}

.choice-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:28px;
}

.choice-card{
    border:1px solid #ddd;
    border-radius:24px;
    padding:30px;
    background:#fff;
    position:relative;
    box-shadow:0 10px 30px rgba(0,0,0,.06);
}

.choice-num{
    position:absolute;
    top:-18px;
    left:24px;
    width:46px;
    height:46px;
    border-radius:50%;
    background:var(--red);
    color:#fff;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:22px;
    font-weight:800;
}

.choice-card h3{
    font-size:28px;
    margin-bottom:20px;
}

.branch-box{
    border-left:5px solid var(--red);
    padding:14px 18px;
    background:#fafafa;
    border-radius:12px;
    margin-bottom:14px;
}

.branch-box h4{
    color:var(--red);
    font-size:20px;
}

.mini-service{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:10px;
    margin-top:20px;
}

.mini-service span{
    background:#111;
    color:#fff;
    padding:12px;
    border-radius:10px;
    text-align:center;
}

.service-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:18px;
}

.service-card{
    background:#fff;
    padding:26px 15px;
    border-radius:20px;
    text-align:center;
    font-size:42px;
    box-shadow:0 8px 24px rgba(0,0,0,.06);
    border:1px solid #eee;
}

.service-card h3{
    font-size:18px;
    margin-top:12px;
}

.promo-section{
    background:
    linear-gradient(90deg,rgba(0,0,0,.94),rgba(0,0,0,.78)),
    radial-gradient(circle at right,#760000,#111);
    color:#fff;
    padding:80px 0;
}

.promo-grid{
    display:grid;
    grid-template-columns:1.2fr .8fr;
    gap:40px;
    align-items:center;
}

.promo-badge{
    background:var(--red);
    padding:8px 18px;
    border-radius:50px;
    display:inline-block;
    margin-bottom:18px;
}

.promo-section h2{
    font-size:44px;
}

.price{
    font-size:96px;
    color:var(--red);
    font-weight:900;
    line-height:1;
}

.price small{
    font-size:32px;
    color:#fff;
}

.old-price{
    color:#ccc;
    margin-bottom:24px;
}

.promo-note{
    background:#fff;
    color:#111;
    padding:32px;
    border-radius:24px;
}

.promo-note h3{
    font-size:26px;
    color:var(--red);
    margin-bottom:14px;
}

.promo-note ul{
    padding-left:20px;
    line-height:2;
}

.booking-form{
    background:#fff;
    padding:32px;
    border-radius:24px;
    box-shadow:0 10px 30px rgba(0,0,0,.08);
    border:1px solid #eee;
}

.form-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:14px;
}

.booking-form input,
.booking-form select,
.booking-form textarea{
    width:100%;
    padding:14px;
    border:1px solid #ddd;
    border-radius:10px;
    font-family:'Kanit',sans-serif;
    font-size:15px;
}

.booking-form textarea{
    margin-top:14px;
    min-height:120px;
}

.booking-form button{
    width:100%;
    border:0;
    margin-top:14px;
    background:var(--red);
    color:#fff;
    padding:16px;
    border-radius:12px;
    font-size:18px;
    font-weight:700;
    cursor:pointer;
}

.step-grid{
    display:grid;
    grid-template-columns:repeat(5,1fr);
    gap:16px;
}

.step-grid div{
    background:#fff;
    border-radius:18px;
    padding:24px;
    text-align:center;
    border:1px solid #eee;
}

.step-grid b{
    display:inline-flex;
    width:44px;
    height:44px;
    background:var(--red);
    color:#fff;
    align-items:center;
    justify-content:center;
    border-radius:50%;
    font-size:20px;
    margin-bottom:10px;
}

.review-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:20px;
}

.review-card{
    border:1px solid #eee;
    border-radius:20px;
    padding:26px;
    box-shadow:0 8px 24px rgba(0,0,0,.05);
}

.review-card h4{
    margin:12px 0 6px;
    color:var(--red);
}

footer{
    background:#050505;
    color:#fff;
    padding:45px 0;
}

.footer-grid{
    display:grid;
    grid-template-columns:1fr 1fr 1fr;
    gap:30px;
}

footer h3{
    color:var(--red);
    font-size:32px;
}

.floating-btn{
    position:fixed;
    right:20px;
    bottom:20px;
    background:var(--red);
    color:#fff;
    padding:14px 24px;
    border-radius:50px;
    font-weight:700;
    box-shadow:0 10px 30px rgba(0,0,0,.25);
    z-index:999;
}

@media(max-width:900px){

    .hd-nav{
        flex-direction:column;
        align-items:flex-start;
    }

    .hd-nav nav{
        flex-wrap:wrap;
        gap:12px;
    }

    .hd-phone{
        text-align:left;
    }

    .hd-hero{
        min-height:auto;
        padding:70px 0;
    }

    .hero-grid,
    .choice-grid,
    .promo-grid{
        grid-template-columns:1fr;
    }

    .hero-text h1{
        font-size:58px;
    }

    .hero-text h2{
        font-size:26px;
    }

    .hero-icons,
    .service-grid,
    .form-grid,
    .step-grid,
    .review-grid,
    .footer-grid{
        grid-template-columns:1fr 1fr;
    }

    .phone-box{
        width:100%;
        min-height:320px;
    }

    .price{
        font-size:72px;
    }
}

@media(max-width:520px){

    .hero-icons,
    .service-grid,
    .form-grid,
    .step-grid,
    .review-grid,
    .footer-grid,
    .mini-service{
        grid-template-columns:1fr;
    }

    .hero-text h1{
        font-size:46px;
    }

    .section-title{
        font-size:30px;
    }

    .promo-section h2{
        font-size:32px;
    }
}