/* =====================================================================
   SEA GROUP - Marine Technology Solutions
   Design system dùng chung cho toàn bộ website
   ===================================================================== */

:root{
    --bg:#050814;
    --bg2:#0a1224;
    --accent:#00d4ff;
    --accent2:#7c3aed;
    --accent3:#22c55e;
    --orange:#ff7a00;
    --orange2:#ffb300;
    --text:#f1f5f9;
    --muted:#94a3b8;
    --glass:rgba(255,255,255,.05);
    --glass2:rgba(255,255,255,.08);
    --border:rgba(255,255,255,.10);
    --radius:20px;
}

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

html{scroll-behavior:smooth;}

body{
    font-family:"Segoe UI",-apple-system,BlinkMacSystemFont,sans-serif;
    background:var(--bg);
    color:var(--text);
    overflow-x:hidden;
    min-height:100vh;
    padding-bottom:0;
}

body.has-mobile-cta{
    padding-bottom:78px;
}

a{color:inherit;}

img{max-width:100%;display:block;}

/* ================= ANIMATED BACKGROUND ================= */

body::before{
    content:"";
    position:fixed;
    inset:-40%;
    background:
        radial-gradient(circle at 20% 20%, rgba(0,212,255,.18), transparent 40%),
        radial-gradient(circle at 80% 30%, rgba(124,58,237,.18), transparent 45%),
        radial-gradient(circle at 50% 85%, rgba(34,197,94,.10), transparent 45%),
        radial-gradient(circle at center, var(--bg), var(--bg2));
    filter:blur(60px);
    animation:bgmove 16s ease-in-out infinite alternate;
    z-index:-2;
    pointer-events:none;
}

@keyframes bgmove{
    from{transform:scale(1);}
    to{transform:scale(1.15) rotate(2deg);}
}

/* ================= CONTAINER ================= */

.wrap{
    max-width:1280px;
    margin:0 auto;
    padding:0 20px;
}

/* ================= NAVBAR ================= */

.navbar{
    position:sticky;
    top:0;
    z-index:100;
    background:rgba(5,12,25,.72);
    backdrop-filter:blur(20px);
    border-bottom:1px solid var(--border);
}

.navbar-inner{
    max-width:1280px;
    margin:0 auto;
    padding:14px 20px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
}

.logo{
    text-decoration:none;
    color:#fff;
    font-size:22px;
    font-weight:900;
    letter-spacing:1.5px;
    white-space:nowrap;
    text-shadow:0 0 10px rgba(0,212,255,.5), 0 0 25px rgba(0,212,255,.25);
}

.nav-links{
    display:flex;
    align-items:center;
    gap:6px;
}

.nav-links a{
    text-decoration:none;
    color:var(--muted);
    font-weight:600;
    font-size:14.5px;
    padding:9px 14px;
    border-radius:999px;
    transition:.25s;
    white-space:nowrap;
}

.nav-links a:hover,
.nav-links a.active{
    color:#fff;
    background:var(--glass2);
}

.hotline-btn{
    display:flex;
    align-items:center;
    gap:8px;
    padding:10px 18px;
    border-radius:999px;
    color:#fff !important;
    text-decoration:none;
    font-weight:800;
    font-size:14.5px;
    background:linear-gradient(135deg,#00d4ff,#2563eb);
    box-shadow:0 0 18px rgba(0,212,255,.35);
    white-space:nowrap;
    transition:.3s;
}

.hotline-btn:hover{
    transform:translateY(-2px);
    box-shadow:0 0 30px rgba(0,212,255,.55);
}

.hotline-btn .ring{
    animation:ring 1.2s infinite;
    display:inline-block;
}

@keyframes ring{
    0%,100%{transform:rotate(0);}
    20%{transform:rotate(-12deg);}
    40%{transform:rotate(12deg);}
    60%{transform:rotate(-8deg);}
    80%{transform:rotate(8deg);}
}

.burger{
    display:none;
    flex-direction:column;
    gap:4px;
    background:none;
    border:none;
    cursor:pointer;
    padding:8px;
}

.burger span{
    width:22px;
    height:2px;
    background:#fff;
    border-radius:2px;
}

/* mobile nav drawer */
.nav-drawer{
    display:none;
}

@media(max-width:900px){
    .nav-links{
        display:none;
        position:absolute;
        top:100%;
        left:0;
        right:0;
        flex-direction:column;
        align-items:stretch;
        background:rgba(5,12,25,.97);
        backdrop-filter:blur(20px);
        border-bottom:1px solid var(--border);
        padding:10px 20px 18px;
        gap:4px;
    }
    .nav-links.open{display:flex;}
    .nav-links a{padding:12px 14px;font-size:15.5px;}
    .burger{display:flex;}
    .logo{font-size:19px;}
    .hotline-btn{padding:8px 14px;font-size:13px;}
}

/* ================= HERO ================= */

.hero{
    min-height:64vh;
    display:flex;
    align-items:center;
    justify-content:center;
    text-align:center;
    padding:60px 20px 40px;
}

.hero-badge{
    display:inline-block;
    padding:7px 18px;
    border-radius:999px;
    font-size:13px;
    font-weight:700;
    letter-spacing:.5px;
    color:var(--accent);
    background:rgba(0,212,255,.08);
    border:1px solid rgba(0,212,255,.3);
    margin-bottom:22px;
}

.hero-title{
    font-size:clamp(34px,5.2vw,72px);
    font-weight:900;
    line-height:1.15;
    background:linear-gradient(90deg,#ffffff,#6ee7ff,#ffffff);
    background-size:300%;
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    animation:titleFlow 8s linear infinite;
}

@keyframes titleFlow{
    from{background-position:0%;}
    to{background-position:300%;}
}

.hero p.sub{
    margin:20px auto 0;
    max-width:720px;
    color:#cbd5e1;
    font-size:17px;
    line-height:1.7;
}

.cta-box{
    margin-top:32px;
    display:flex;
    justify-content:center;
    gap:14px;
    flex-wrap:wrap;
}

.btn{
    display:inline-flex;
    align-items:center;
    gap:8px;
    border:none;
    cursor:pointer;
    padding:14px 26px;
    border-radius:999px;
    color:#fff;
    font-weight:800;
    font-size:15px;
    text-decoration:none;
    min-width:170px;
    justify-content:center;
    transition:.3s;
}

.btn-primary{background:linear-gradient(45deg,#2563eb,#00d4ff);}
.btn-orange{background:linear-gradient(45deg,#ff5f1f,#ffb300);}
.btn-ghost{
    background:rgba(255,255,255,.05);
    border:1px solid rgba(0,212,255,.4);
    backdrop-filter:blur(20px);
    min-width:auto;
}
.btn-green{background:linear-gradient(45deg,#16a34a,#22c55e);}

.btn:hover{
    transform:translateY(-3px);
    box-shadow:0 10px 30px rgba(0,212,255,.25);
}

.btn-sm{
    padding:9px 16px;
    font-size:13.5px;
    min-width:auto;
    border-radius:999px;
}

/* ================= STATS ================= */

.stats{
    margin-top:46px;
    display:flex;
    justify-content:center;
    gap:44px;
    flex-wrap:wrap;
}

.stat h3{
    font-size:38px;
    color:var(--accent);
    font-weight:900;
}

.stat span{color:var(--muted);font-size:14px;}

/* ================= SECTION ================= */

.section{padding:50px 20px;}

.section-head{
    text-align:center;
    max-width:760px;
    margin:0 auto 36px;
}

.section-eyebrow{
    color:var(--accent);
    font-weight:800;
    font-size:13px;
    letter-spacing:2px;
    text-transform:uppercase;
    margin-bottom:10px;
}

.section-head h2{
    font-size:clamp(26px,3.6vw,40px);
    font-weight:900;
}

.section-head p{
    margin-top:12px;
    color:var(--muted);
    font-size:15.5px;
    line-height:1.7;
}

/* ================= GROUP PANEL (trang chủ) ================= */

.groups{
    max-width:1280px;
    margin:0 auto;
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:26px;
    padding:0 20px;
}

.group-panel{
    position:relative;
    border-radius:26px;
    padding:30px;
    background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
    border:1px solid var(--border);
    backdrop-filter:blur(20px);
    overflow:hidden;
}

.group-panel.blue::before{background:linear-gradient(135deg,#00d4ff,#2563eb);}
.group-panel.green::before{background:linear-gradient(135deg,#22c55e,#0ea5e9);}

.group-panel::before{
    content:"";
    position:absolute;
    top:0;left:0;right:0;
    height:4px;
}

.group-head{
    display:flex;
    align-items:center;
    gap:14px;
    margin-bottom:6px;
}

.group-icon{
    font-size:34px;
    width:58px;height:58px;
    display:flex;align-items:center;justify-content:center;
    border-radius:16px;
    background:rgba(255,255,255,.06);
    flex-shrink:0;
}

.group-head h3{font-size:21px;font-weight:900;}
.group-head p{color:var(--muted);font-size:13.5px;margin-top:2px;}

.item-list{
    margin-top:20px;
    display:flex;
    flex-direction:column;
    gap:10px;
}

.item-card{
    display:flex;
    align-items:center;
    gap:12px;
    padding:13px 14px;
    border-radius:14px;
    background:rgba(255,255,255,.03);
    border:1px solid rgba(255,255,255,.06);
    text-decoration:none;
    color:var(--text);
    transition:.25s;
}

.item-card:hover{
    background:rgba(255,255,255,.07);
    border-color:rgba(0,212,255,.35);
    transform:translateX(4px);
}

.item-emoji{font-size:21px;width:30px;text-align:center;flex-shrink:0;}

.item-text b{display:block;font-size:14.5px;font-weight:700;}
.item-text span{display:block;font-size:12.5px;color:var(--muted);margin-top:1px;}

.item-arrow{margin-left:auto;color:var(--accent);font-size:16px;flex-shrink:0;}

.group-actions{
    margin-top:22px;
    display:flex;
    gap:10px;
    flex-wrap:wrap;
}

/* ================= FEATURE GRID (trang chi tiết) ================= */

.jump-nav{
    display:flex;
    justify-content:center;
    gap:10px;
    flex-wrap:wrap;
    padding:0 20px 10px;
}

.jump-nav a{
    text-decoration:none;
    color:var(--text);
    background:rgba(255,255,255,.05);
    border:1px solid var(--border);
    padding:9px 16px;
    border-radius:999px;
    font-size:13.5px;
    font-weight:700;
    transition:.25s;
}

.jump-nav a:hover{background:rgba(0,212,255,.12);border-color:rgba(0,212,255,.4);}

.feature-block{
    max-width:1100px;
    margin:0 auto;
    padding:44px 20px;
    scroll-margin-top:90px;
}

.feature-card{
    position:relative;
    border-radius:24px;
    padding:32px;
    background:rgba(255,255,255,.045);
    border:1px solid var(--border);
    backdrop-filter:blur(15px);
}

.feature-card-head{
    display:flex;
    align-items:center;
    gap:16px;
    margin-bottom:20px;
}

.feature-card-head .emoji{
    font-size:36px;
    width:62px;height:62px;
    display:flex;align-items:center;justify-content:center;
    border-radius:16px;
    background:linear-gradient(135deg,rgba(0,212,255,.18),rgba(124,58,237,.18));
    flex-shrink:0;
}

.feature-card-head h3{font-size:24px;font-weight:900;}

.feature-list{
    list-style:none;
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:12px 22px;
}

.feature-list li{
    display:flex;
    gap:10px;
    align-items:flex-start;
    font-size:14.5px;
    line-height:1.65;
    color:#dbeafe;
}

.feature-list li::before{
    content:"✓";
    flex-shrink:0;
    width:20px;height:20px;
    border-radius:50%;
    background:rgba(34,197,94,.18);
    color:#4ade80;
    font-size:12px;
    font-weight:900;
    display:flex;align-items:center;justify-content:center;
    margin-top:2px;
}

.feature-card-foot{
    margin-top:24px;
    display:flex;
    gap:12px;
    flex-wrap:wrap;
    align-items:center;
}

@media(max-width:768px){
    .feature-list{grid-template-columns:1fr;}
    .feature-card{padding:22px;}
}

/* ================= BOTTOM CTA BAND ================= */

.cta-band{
    max-width:1100px;
    margin:10px auto 60px;
    padding:38px 30px;
    border-radius:26px;
    text-align:center;
    background:linear-gradient(135deg,rgba(0,212,255,.10),rgba(124,58,237,.10));
    border:1px solid rgba(0,212,255,.25);
}

.cta-band h2{font-size:26px;font-weight:900;margin-bottom:10px;}
.cta-band p{color:var(--muted);margin-bottom:22px;font-size:15px;}

/* ================= FOOTER ================= */

.footer{
    border-top:1px solid var(--border);
    padding:40px 20px 30px;
    margin-top:20px;
}

.footer-inner{
    max-width:1280px;
    margin:0 auto;
    display:flex;
    justify-content:space-between;
    flex-wrap:wrap;
    gap:24px;
}

.footer-brand{font-size:18px;font-weight:900;margin-bottom:8px;}

.footer-col p, .footer-col a{
    color:var(--muted);
    font-size:14px;
    text-decoration:none;
    line-height:2;
    display:block;
}

.footer-col a:hover{color:var(--accent);}

.footer-bottom{
    text-align:center;
    color:#64748b;
    font-size:12.5px;
    margin-top:26px;
}

.footer-bottom a{color:#64748b;text-decoration:none;}
.footer-bottom a:hover{color:var(--accent);}

/* ================= MOBILE STICKY CTA ================= */

.mobile-cta{
    display:none;
    position:fixed;
    bottom:0;left:0;right:0;
    z-index:200;
    padding:10px 14px;
    gap:10px;
    background:rgba(5,12,25,.92);
    backdrop-filter:blur(20px);
    border-top:1px solid var(--border);
}

.mobile-cta a{
    flex:1;
    text-align:center;
    padding:13px 10px;
    border-radius:14px;
    font-weight:800;
    font-size:14px;
    text-decoration:none;
    color:#fff;
}

.mobile-cta .call{background:linear-gradient(135deg,#00d4ff,#2563eb);}
.mobile-cta .quote{background:linear-gradient(135deg,#ff5f1f,#ffb300);}

@media(max-width:768px){
    .mobile-cta{display:flex;}
}

/* ================= FORM (đăng ký tư vấn) ================= */

.form-box{
    max-width:640px;
    margin:50px auto;
    padding:34px;
    border-radius:24px;
    background:rgba(255,255,255,.045);
    border:1px solid var(--border);
    backdrop-filter:blur(18px);
    box-shadow:0 0 40px rgba(0,212,255,.08);
}

.form-badge{
    text-align:center;
    font-size:12.5px;
    color:var(--accent);
    letter-spacing:1px;
    margin-bottom:8px;
    font-weight:700;
}

.form-title{
    font-size:25px;
    font-weight:900;
    text-align:center;
    margin-bottom:8px;
}

.form-sub{
    text-align:center;
    color:var(--muted);
    font-size:14px;
    margin-bottom:26px;
    line-height:1.6;
}

.field{margin-bottom:16px;}

.field label{
    display:block;
    font-size:13px;
    font-weight:700;
    color:#cbd5e1;
    margin-bottom:6px;
}

.field label .req{color:#f87171;}

.field input, .field select, .field textarea{
    width:100%;
    padding:13px 14px;
    border-radius:12px;
    border:1px solid rgba(255,255,255,.12);
    background:rgba(255,255,255,.03);
    color:#fff;
    outline:none;
    font-size:14.5px;
    font-family:inherit;
    transition:.25s;
}

.field select option{background:#0a1224;color:#fff;}

.field input:focus, .field select:focus, .field textarea:focus{
    border-color:var(--accent);
    box-shadow:0 0 0 2px rgba(0,212,255,.15), 0 0 25px rgba(0,212,255,.12);
}

.field input::placeholder, .field textarea::placeholder{color:rgba(255,255,255,.35);}

.form-submit{
    width:100%;
    border:none;
    padding:15px;
    border-radius:12px;
    font-weight:900;
    font-size:15.5px;
    color:#fff;
    background:linear-gradient(45deg,#2563eb,#00d4ff);
    box-shadow:0 0 25px rgba(0,212,255,.25);
    cursor:pointer;
    transition:.3s;
}

.form-submit:hover{transform:translateY(-2px);box-shadow:0 0 40px rgba(0,212,255,.35);}

.form-msg{
    text-align:center;
    display:block;
    margin-top:14px;
    font-size:13.5px;
    text-decoration:none;
    color:var(--muted);
}

.form-msg:hover{color:var(--accent);}

.alert{
    padding:14px 16px;
    border-radius:12px;
    font-size:14px;
    margin-bottom:18px;
    text-align:center;
}

.alert-error{background:rgba(248,113,113,.1);border:1px solid rgba(248,113,113,.35);color:#fca5a5;}
.alert-success{background:rgba(34,197,94,.1);border:1px solid rgba(34,197,94,.35);color:#86efac;}

.success-box{text-align:center;padding:20px 0;}
.success-box .big-check{
    width:70px;height:70px;
    border-radius:50%;
    background:rgba(34,197,94,.15);
    color:#4ade80;
    font-size:34px;
    display:flex;align-items:center;justify-content:center;
    margin:0 auto 18px;
}

@media(max-width:768px){
    .form-box{margin:30px 15px;padding:22px;}
}

/* ================= ADMIN LOGIN ================= */

.login-wrap{
    min-height:100vh;
    display:flex;
    align-items:center;
    justify-content:center;
    padding:20px;
}

.login-box{
    width:100%;
    max-width:380px;
    padding:36px 30px;
    border-radius:24px;
    background:rgba(255,255,255,.05);
    border:1px solid var(--border);
    backdrop-filter:blur(20px);
    box-shadow:0 20px 60px rgba(0,0,0,.4);
}

.login-box h2{
    text-align:center;
    font-size:22px;
    font-weight:900;
    margin-bottom:6px;
}

.login-box .lock-sub{
    text-align:center;
    color:var(--muted);
    font-size:13px;
    margin-bottom:22px;
}

/* ================= ADMIN DASHBOARD ================= */

.admin-shell{display:flex;min-height:100vh;}

.admin-sidebar{
    width:230px;
    flex-shrink:0;
    background:rgba(5,10,20,.9);
    border-right:1px solid var(--border);
    padding:24px 18px;
    position:sticky;
    top:0;
    height:100vh;
}

.admin-sidebar h3{
    color:#fff;
    font-size:17px;
    font-weight:900;
    margin-bottom:26px;
    padding:0 6px;
}

.admin-sidebar a{
    display:flex;
    align-items:center;
    gap:10px;
    color:#cbd5e1;
    text-decoration:none;
    padding:11px 12px;
    border-radius:10px;
    margin-bottom:4px;
    font-size:14px;
    font-weight:600;
    transition:.2s;
}

.admin-sidebar a:hover, .admin-sidebar a.active{
    background:rgba(0,212,255,.12);
    color:#fff;
}

.admin-main{flex:1;padding:28px;min-width:0;}

.admin-topbar{
    background:linear-gradient(135deg,#0f172a,#1e293b);
    border:1px solid var(--border);
    padding:24px 26px;
    border-radius:20px;
    margin-bottom:22px;
}

.admin-topbar h2{font-size:22px;font-weight:900;}
.admin-topbar p{color:var(--muted);font-size:13.5px;margin-top:4px;}

.stat-row{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:16px;
    margin-bottom:26px;
}

.stat-card{
    padding:20px;
    border-radius:16px;
    background:rgba(255,255,255,.045);
    border:1px solid var(--border);
}

.stat-card .num{font-size:30px;font-weight:900;}
.stat-card .lbl{color:var(--muted);font-size:13px;margin-top:4px;}

.stat-card.new .num{color:#fb923c;}
.stat-card.done .num{color:#4ade80;}
.stat-card.all .num{color:var(--accent);}

.filter-chips{
    display:flex;
    gap:8px;
    flex-wrap:wrap;
    margin-bottom:18px;
}

.filter-chips a{
    text-decoration:none;
    color:var(--muted);
    background:rgba(255,255,255,.04);
    border:1px solid var(--border);
    padding:8px 16px;
    border-radius:999px;
    font-size:13px;
    font-weight:700;
}

.filter-chips a.active{
    background:rgba(0,212,255,.15);
    border-color:rgba(0,212,255,.4);
    color:#fff;
}

.quote-card{
    padding:18px 20px;
    border-radius:16px;
    background:rgba(255,255,255,.04);
    border:1px solid var(--border);
    margin-bottom:12px;
    display:flex;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
}

.quote-info b{font-size:15.5px;}

.quote-meta{
    display:flex;
    gap:14px;
    flex-wrap:wrap;
    margin-top:6px;
    font-size:13px;
    color:var(--muted);
}

.quote-meta a{color:var(--muted);text-decoration:none;}
.quote-meta a:hover{color:var(--accent);}

.quote-content{
    margin-top:8px;
    font-size:13.5px;
    color:#cbd5e1;
    max-width:560px;
}

.quote-actions{
    display:flex;
    flex-direction:column;
    gap:8px;
    align-items:flex-end;
    flex-shrink:0;
}

.badge{
    display:inline-block;
    padding:4px 12px;
    border-radius:999px;
    font-size:11.5px;
    font-weight:800;
    letter-spacing:.3px;
}

.badge-new{background:rgba(251,146,60,.15);color:#fb923c;border:1px solid rgba(251,146,60,.35);}
.badge-done{background:rgba(74,222,128,.15);color:#4ade80;border:1px solid rgba(74,222,128,.35);}
.badge-cat{background:rgba(0,212,255,.12);color:#67e8f9;border:1px solid rgba(0,212,255,.3);}

.btn-mini{
    padding:7px 14px;
    border-radius:8px;
    font-size:12.5px;
    font-weight:700;
    text-decoration:none;
    border:none;
    cursor:pointer;
    white-space:nowrap;
}

.btn-mini.done{background:rgba(74,222,128,.18);color:#4ade80;}
.btn-mini.undo{background:rgba(148,163,184,.18);color:#cbd5e1;}
.btn-mini.del{background:rgba(248,113,113,.18);color:#fca5a5;}

.empty-state{
    text-align:center;
    padding:50px 20px;
    color:var(--muted);
}

@media(max-width:900px){
    .admin-shell{flex-direction:column;}
    .admin-sidebar{
        width:100%;height:auto;position:static;
        display:flex;align-items:center;justify-content:space-between;
        padding:14px 18px;
    }
    .admin-sidebar h3{margin:0;}
    .admin-sidebar .nav-group{display:flex;gap:6px;}
    .admin-sidebar a{margin-bottom:0;padding:8px 10px;font-size:13px;}
    .admin-main{padding:18px;}
    .stat-row{grid-template-columns:1fr 1fr;}
    .quote-card{flex-direction:column;}
    .quote-actions{flex-direction:row;align-items:center;}
}

/* =====================================================================
   MOBILE READABILITY OVERHAUL
   Sửa lỗi giao diện điện thoại: chữ bị bóp dài, layout 2 cột chật hẹp,
   nút bấm tràn màn hình. Áp dụng cho mọi trang.
   ===================================================================== */

/* Chống tràn chữ trong mọi khối flex có icon + tiêu đề */
.group-head, .feature-card-head, .item-card, .quote-info, .footer-col, .stat-card{
    min-width:0;
}
.group-head > div, .item-text, .quote-info{
    min-width:0;
}
.group-head h3, .group-head p,
.feature-card-head h3,
.item-text b, .item-text span,
.hero-title, .cta-band h2, .section-head h2{
    overflow-wrap:break-word;
    word-break:break-word;
    hyphens:auto;
}

@media(max-width:900px){
    /* Trang chủ: 2 khối giải pháp KHÔNG được ép cạnh nhau trên điện thoại */
    .groups{
        grid-template-columns:1fr;
        gap:18px;
        padding:0 16px;
    }
}

@media(max-width:768px){

    .wrap{padding:0 16px;}

    /* HERO */
    .hero{
        min-height:auto;
        padding:40px 16px 32px;
    }
    .hero-title{
        font-size:clamp(26px,7.5vw,44px);
        line-height:1.25;
    }
    .hero p.sub{
        font-size:14.5px;
        line-height:1.65;
        padding:0 4px;
    }
    .hero-badge{font-size:11.5px;padding:6px 14px;}

    /* STATS: 2x2 rõ ràng thay vì 1 hàng ngang bị bóp */
    .stats{
        gap:16px 28px;
        margin-top:30px;
    }
    .stat{width:calc(50% - 14px);}
    .stat h3{font-size:28px;}
    .stat span{font-size:12.5px;}

    /* CTA: xếp dọc, full-width để bấm dễ (thao tác toàn diện) */
    .cta-box{
        flex-direction:column;
        align-items:stretch;
        gap:10px;
    }
    .btn{
        width:100%;
        min-width:0;
        padding:14px 18px;
        font-size:14.5px;
    }

    /* SECTION */
    .section{padding:34px 16px;}
    .section-head p{font-size:14px;}
    .section-head h2{font-size:24px;}

    /* GROUP PANEL (trang chủ) */
    .group-panel{padding:20px;border-radius:20px;}
    .group-icon{width:46px;height:46px;font-size:24px;border-radius:12px;}
    .group-head h3{font-size:17px;}
    .group-head p{font-size:12px;}
    .item-card{padding:12px;gap:10px;}
    .item-emoji{font-size:18px;width:24px;}
    .item-text b{font-size:13.5px;}
    .item-text span{font-size:11.5px;line-height:1.4;}
    .group-actions{flex-direction:column;align-items:stretch;}
    .group-actions .btn{width:100%;}

    /* FEATURE / CHI TIẾT GIẢI PHÁP */
    .jump-nav{padding:0 16px 8px;gap:8px;}
    .jump-nav a{font-size:12.5px;padding:8px 13px;}
    .feature-block{padding:28px 16px;}
    .feature-card{padding:20px;border-radius:18px;}
    .feature-card-head{gap:12px;margin-bottom:16px;}
    .feature-card-head .emoji{width:48px;height:48px;font-size:26px;border-radius:12px;}
    .feature-card-head h3{font-size:19px;}
    .feature-list{gap:10px;}
    .feature-list li{font-size:14px;line-height:1.55;}
    .feature-card-foot{flex-direction:column;align-items:stretch;}
    .feature-card-foot .btn{width:100%;}

    /* CTA BAND */
    .cta-band{padding:26px 18px;margin:6px 16px 40px;border-radius:20px;}
    .cta-band h2{font-size:19px;}
    .cta-band p{font-size:13.5px;}

    /* FOOTER: xếp dọc từng cột cho dễ đọc */
    .footer{padding:32px 16px 26px;}
    .footer-inner{flex-direction:column;gap:22px;}
    .footer-col a, .footer-col p{font-size:13.5px;}

    /* FORM */
    .form-title{font-size:20px;}
    .form-sub{font-size:13px;}
}

@media(max-width:400px){
    .logo{font-size:16.5px;}
    .hotline-btn span:last-child{display:none;}
    .hotline-btn{padding:10px;}
    .hero-title{font-size:24px;}
    .stat{width:calc(50% - 10px);}
    .stat h3{font-size:24px;}
    .mobile-cta a{font-size:12.5px;padding:12px 6px;}
    .stat-card .num{font-size:22px;}
    .quote-actions{width:100%;flex-direction:row;justify-content:flex-end;}
    .quote-card{padding:14px;}
}

/* Hero rút gọn cho trang chi tiết (dien-nhe.html, du-an-bien.html) */
.hero-sm{min-height:44vh;padding-top:50px;}
.hero-title-sm{font-size:clamp(28px,4.6vw,58px);}

@media(max-width:768px){
    .hero-sm{min-height:auto;padding:40px 16px 28px;}
    .hero-title-sm{font-size:clamp(24px,7vw,38px);line-height:1.25;}
}

/* ================= MISC ================= */

.badge-top-strip{
    text-align:center;
    padding:8px 14px;
    font-size:12.5px;
    color:#0f172a;
    background:linear-gradient(90deg,#00d4ff,#7c3aed);
    font-weight:800;
}

/* =====================================================================
   MODULE ĐẶT HÀNG - Giỏ hàng góc navbar
   ===================================================================== */
.cart-btn{
    position:relative;
    display:flex;
    align-items:center;
    justify-content:center;
    width:42px;height:42px;
    border-radius:50%;
    background:rgba(255,255,255,.06);
    border:1px solid var(--border);
    text-decoration:none;
    font-size:18px;
    flex-shrink:0;
    transition:.25s;
}

.cart-btn:hover, .cart-btn.active{
    background:rgba(0,212,255,.15);
    border-color:rgba(0,212,255,.4);
}

.cart-count{
    position:absolute;
    top:-4px;right:-4px;
    background:linear-gradient(45deg,#ff5f1f,#ffb300);
    color:#fff;
    font-size:10.5px;
    font-weight:900;
    min-width:18px;height:18px;
    border-radius:999px;
    display:flex;align-items:center;justify-content:center;
    padding:0 4px;
    box-shadow:0 0 0 2px var(--bg);
}

@media(max-width:400px){
    .cart-btn{width:38px;height:38px;font-size:16px;}
}

/* =====================================================================
   SHOP - DANH SÁCH SẢN PHẨM
   ===================================================================== */
.shop-hero{
    text-align:center;
    padding:44px 20px 26px;
}

.shop-cats{
    display:flex;
    gap:8px;
    flex-wrap:wrap;
    justify-content:center;
    max-width:1100px;
    margin:0 auto 34px;
    padding:0 20px;
}

.shop-cats a{
    text-decoration:none;
    color:var(--muted);
    background:rgba(255,255,255,.04);
    border:1px solid var(--border);
    padding:8px 16px;
    border-radius:999px;
    font-size:13px;
    font-weight:700;
    white-space:nowrap;
    transition:.2s;
}

.shop-cats a:hover, .shop-cats a.active{
    background:rgba(0,212,255,.15);
    border-color:rgba(0,212,255,.4);
    color:#fff;
}

.shop-grid{
    max-width:1280px;
    margin:0 auto;
    padding:0 20px 60px;
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:20px;
}

.product-card{
    display:flex;
    flex-direction:column;
    border-radius:20px;
    background:rgba(255,255,255,.045);
    border:1px solid var(--border);
    overflow:hidden;
    text-decoration:none;
    color:var(--text);
    transition:.3s;
    position:relative;
}

.product-card:hover{
    transform:translateY(-6px);
    border-color:rgba(0,212,255,.35);
    box-shadow:0 16px 40px rgba(0,0,0,.35);
}

.product-thumb{
    width:100%;
    aspect-ratio:1/1;
    background:linear-gradient(135deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
    display:flex;align-items:center;justify-content:center;
    font-size:44px;
    overflow:hidden;
}

.product-thumb img{
    width:100%;height:100%;
    object-fit:cover;
}

.out-of-stock-tag{
    position:absolute;
    top:10px;left:10px;
    background:rgba(15,23,42,.85);
    color:#fca5a5;
    font-size:11px;
    font-weight:800;
    padding:4px 10px;
    border-radius:999px;
    border:1px solid rgba(248,113,113,.4);
}

.product-body{
    padding:14px 14px 16px;
    display:flex;
    flex-direction:column;
    gap:6px;
    flex:1;
}

.product-cat{
    font-size:11px;
    color:var(--accent);
    font-weight:700;
    text-transform:uppercase;
    letter-spacing:.3px;
}

.product-name{
    font-size:14.5px;
    font-weight:700;
    line-height:1.4;
    min-height:2.8em;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
}

.product-price-row{
    margin-top:auto;
    display:flex;
    align-items:baseline;
    gap:8px;
    flex-wrap:wrap;
}

.price-new{font-size:16.5px;font-weight:900;color:var(--orange);}
.price-old{font-size:12.5px;color:var(--muted);text-decoration:line-through;}

.empty-shop{
    grid-column:1/-1;
    text-align:center;
    padding:60px 20px;
    color:var(--muted);
}

@media(max-width:992px){
    .shop-grid{grid-template-columns:repeat(3,1fr);}
}

@media(max-width:768px){
    .shop-hero{padding:30px 16px 18px;}
    .shop-cats{padding:0 16px;margin-bottom:22px;gap:6px;}
    .shop-cats a{font-size:12px;padding:7px 13px;}
    .shop-grid{grid-template-columns:repeat(2,1fr);gap:12px;padding:0 16px 90px;}
    .product-body{padding:10px 10px 12px;}
    .product-name{font-size:13px;min-height:2.6em;}
    .price-new{font-size:14.5px;}
}

/* =====================================================================
   CHI TIẾT SẢN PHẨM
   ===================================================================== */
.pd-wrap{
    max-width:1100px;
    margin:0 auto;
    padding:30px 20px 60px;
}

.pd-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:36px;
}

.pd-gallery-main{
    width:100%;
    aspect-ratio:1/1;
    border-radius:22px;
    overflow:hidden;
    background:rgba(255,255,255,.04);
    border:1px solid var(--border);
    display:flex;align-items:center;justify-content:center;
    font-size:60px;
}

.pd-gallery-main img{width:100%;height:100%;object-fit:cover;}

.pd-thumbs{
    display:flex;
    gap:10px;
    margin-top:12px;
    overflow-x:auto;
    padding-bottom:4px;
}

.pd-thumbs img{
    width:64px;height:64px;
    object-fit:cover;
    border-radius:12px;
    border:2px solid transparent;
    cursor:pointer;
    flex-shrink:0;
    opacity:.6;
    transition:.2s;
}

.pd-thumbs img.active, .pd-thumbs img:hover{
    opacity:1;
    border-color:var(--accent);
}

.pd-cat{
    color:var(--accent);
    font-weight:700;
    font-size:12.5px;
    text-transform:uppercase;
    letter-spacing:.5px;
    margin-bottom:8px;
}

.pd-name{font-size:26px;font-weight:900;line-height:1.3;}

.pd-price-row{
    display:flex;
    align-items:baseline;
    gap:12px;
    margin:16px 0;
    flex-wrap:wrap;
}

.pd-price-row .price-new{font-size:28px;}
.pd-price-row .price-old{font-size:16px;}

.pd-stock{font-size:13.5px;color:var(--muted);margin-bottom:18px;}
.pd-stock.out{color:#fca5a5;}

.pd-desc{
    color:#cbd5e1;
    line-height:1.75;
    font-size:14.5px;
    white-space:pre-line;
    background:rgba(255,255,255,.03);
    border-radius:16px;
    padding:16px 18px;
    margin-bottom:22px;
}

.qty-stepper{
    display:inline-flex;
    align-items:center;
    border:1px solid var(--border);
    border-radius:12px;
    overflow:hidden;
}

.qty-stepper button{
    width:42px;height:42px;
    background:rgba(255,255,255,.05);
    border:none;
    color:#fff;
    font-size:18px;
    cursor:pointer;
}

.qty-stepper input{
    width:52px;height:42px;
    border:none;
    border-left:1px solid var(--border);
    border-right:1px solid var(--border);
    background:transparent;
    color:#fff;
    text-align:center;
    font-size:15px;
    font-weight:700;
}

.pd-add-row{
    display:flex;
    align-items:center;
    gap:14px;
    flex-wrap:wrap;
}

.pd-related{margin-top:50px;}
.pd-related h3{font-size:19px;font-weight:900;margin-bottom:18px;}
.pd-related .shop-grid{padding:0;grid-template-columns:repeat(4,1fr);max-width:none;}

.pd-sticky-bar{
    display:none;
    position:fixed;
    bottom:0;left:0;right:0;
    z-index:200;
    padding:12px 14px;
    gap:10px;
    align-items:center;
    background:rgba(5,12,25,.95);
    backdrop-filter:blur(20px);
    border-top:1px solid var(--border);
}

@media(max-width:768px){
    .pd-grid{grid-template-columns:1fr;gap:20px;}
    .pd-name{font-size:21px;}
    .pd-price-row .price-new{font-size:23px;}
    .pd-related .shop-grid{grid-template-columns:repeat(2,1fr);gap:12px;}
    .pd-add-row.desktop-only{display:none;}
    .pd-sticky-bar{display:flex;}
    body.has-pd-sticky{padding-bottom:74px;}
}

/* =====================================================================
   GIỎ HÀNG
   ===================================================================== */
.cart-wrap{
    max-width:820px;
    margin:0 auto;
    padding:30px 20px 60px;
}

.cart-page-title{font-size:24px;font-weight:900;margin-bottom:22px;}

.cart-row{
    display:flex;
    align-items:center;
    gap:14px;
    padding:16px;
    border-radius:16px;
    background:rgba(255,255,255,.04);
    border:1px solid var(--border);
    margin-bottom:12px;
}

.cart-row-thumb{
    width:64px;height:64px;
    border-radius:12px;
    object-fit:cover;
    background:rgba(255,255,255,.06);
    flex-shrink:0;
    display:flex;align-items:center;justify-content:center;
    font-size:26px;
}

.cart-row-info{flex:1;min-width:0;}
.cart-row-info b{
    display:block;
    font-size:14.5px;
    overflow-wrap:break-word;
}
.cart-row-info span{color:var(--muted);font-size:13px;}

.cart-row-qty form{display:flex;}
.cart-row-qty .qty-stepper button{width:34px;height:34px;font-size:15px;}
.cart-row-qty .qty-stepper input{width:42px;height:34px;font-size:13.5px;}

.cart-row-total{
    font-weight:900;
    color:var(--orange);
    font-size:14.5px;
    min-width:90px;
    text-align:right;
}

.cart-row-remove{
    color:#fca5a5;
    text-decoration:none;
    font-size:18px;
    padding:6px;
}

.cart-summary{
    margin-top:22px;
    padding:20px;
    border-radius:16px;
    background:linear-gradient(135deg,rgba(0,212,255,.1),rgba(124,58,237,.1));
    border:1px solid rgba(0,212,255,.25);
    display:flex;
    justify-content:space-between;
    align-items:center;
    font-weight:800;
    font-size:16px;
}

.cart-summary .amt{color:var(--orange);font-size:22px;}

@media(max-width:600px){
    .cart-row{flex-wrap:wrap;padding:12px;}
    .cart-row-total{margin-left:auto;}
}

/* =====================================================================
   CHECKOUT
   ===================================================================== */
.checkout-wrap{
    max-width:960px;
    margin:0 auto;
    padding:30px 20px 60px;
    display:grid;
    grid-template-columns:1.1fr .9fr;
    gap:28px;
    align-items:flex-start;
}

.checkout-summary{
    padding:22px;
    border-radius:20px;
    background:rgba(255,255,255,.045);
    border:1px solid var(--border);
}

.checkout-summary h3{font-size:16px;font-weight:900;margin-bottom:14px;}

.checkout-item{
    display:flex;
    justify-content:space-between;
    gap:10px;
    font-size:13.5px;
    padding:9px 0;
    border-bottom:1px solid rgba(255,255,255,.06);
}

.checkout-item span:first-child{color:#dbeafe;}
.checkout-item span:last-child{color:var(--muted);white-space:nowrap;}

.checkout-total{
    display:flex;
    justify-content:space-between;
    margin-top:14px;
    padding-top:14px;
    border-top:1px solid var(--border);
    font-weight:900;
    font-size:16px;
}

.checkout-total .amt{color:var(--orange);}

@media(max-width:900px){
    .checkout-wrap{grid-template-columns:1fr;}
    .checkout-summary{order:-1;}
}

/* =====================================================================
   ĐẶT HÀNG THÀNH CÔNG
   ===================================================================== */
.order-success-wrap{
    max-width:520px;
    margin:60px auto;
    padding:40px 30px;
    text-align:center;
    border-radius:24px;
    background:rgba(255,255,255,.045);
    border:1px solid var(--border);
}

.order-success-code{
    display:inline-block;
    margin:16px 0 22px;
    padding:10px 22px;
    border-radius:999px;
    background:rgba(34,197,94,.12);
    border:1px solid rgba(34,197,94,.35);
    color:#4ade80;
    font-weight:900;
    font-size:16px;
    letter-spacing:1px;
}

/* =====================================================================
   ADMIN - SẢN PHẨM & ĐƠN HÀNG
   ===================================================================== */
.admin-actions-row{
    display:flex;
    justify-content:space-between;
    align-items:center;
    flex-wrap:wrap;
    gap:12px;
    margin-bottom:18px;
}

.product-row{
    display:flex;
    align-items:center;
    gap:16px;
    padding:14px 18px;
    border-radius:16px;
    background:rgba(255,255,255,.04);
    border:1px solid var(--border);
    margin-bottom:10px;
    flex-wrap:wrap;
}

.product-row-thumb{
    width:56px;height:56px;
    border-radius:12px;
    object-fit:cover;
    background:rgba(255,255,255,.06);
    flex-shrink:0;
    display:flex;align-items:center;justify-content:center;
    font-size:22px;
}

.product-row-info{flex:1;min-width:160px;}
.product-row-info b{display:block;font-size:14.5px;}
.product-row-info span{color:var(--muted);font-size:12.5px;}

.product-row-price{font-weight:900;color:var(--orange);font-size:14.5px;white-space:nowrap;}

.product-row-actions{
    display:flex;
    gap:8px;
    flex-wrap:wrap;
    align-items:center;
}

.badge-active{background:rgba(74,222,128,.15);color:#4ade80;border:1px solid rgba(74,222,128,.35);}
.badge-hidden{background:rgba(148,163,184,.15);color:#cbd5e1;border:1px solid rgba(148,163,184,.35);}
.badge-outstock{background:rgba(248,113,113,.15);color:#fca5a5;border:1px solid rgba(248,113,113,.35);}

/* FORM ĐĂNG SẢN PHẨM (ADMIN) */
.upload-drop{
    border:2px dashed rgba(0,212,255,.4);
    border-radius:16px;
    padding:26px;
    text-align:center;
    cursor:pointer;
    color:var(--muted);
    font-size:14px;
    margin-bottom:16px;
    transition:.2s;
}

.upload-drop:hover{background:rgba(0,212,255,.06);}

.img-preview-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:10px;
    margin-bottom:16px;
}

.img-preview-grid .img-box{
    position:relative;
    aspect-ratio:1/1;
    border-radius:12px;
    overflow:hidden;
    background:rgba(255,255,255,.05);
}

.img-preview-grid .img-box img{width:100%;height:100%;object-fit:cover;}

.img-preview-grid .img-remove{
    position:absolute;
    top:4px;right:4px;
    width:22px;height:22px;
    border-radius:50%;
    background:rgba(15,23,42,.8);
    color:#fca5a5;
    border:none;
    font-size:12px;
    cursor:pointer;
    display:flex;align-items:center;justify-content:center;
}

.existing-img-label{
    display:flex;
    flex-direction:column;
    align-items:center;
    gap:6px;
    font-size:11px;
    color:var(--muted);
    cursor:pointer;
}

.form-row-2{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:14px;
}

.switch-field{
    display:flex;
    align-items:center;
    gap:10px;
    margin-bottom:16px;
    font-size:14px;
    color:#cbd5e1;
}

.switch-field input{width:auto;}

@media(max-width:768px){
    .form-row-2{grid-template-columns:1fr;}
    .img-preview-grid{grid-template-columns:repeat(3,1fr);}
}

/* ĐƠN HÀNG - CHI TIẾT */
.order-detail-head{
    display:flex;
    justify-content:space-between;
    flex-wrap:wrap;
    gap:16px;
    align-items:flex-start;
}

.order-info-box{
    padding:18px 20px;
    border-radius:16px;
    background:rgba(255,255,255,.04);
    border:1px solid var(--border);
    margin:18px 0;
}

.order-info-box div{font-size:14px;margin-bottom:6px;color:#dbeafe;}
.order-info-box div b{color:#fff;}

.order-status-steps{
    display:flex;
    gap:8px;
    flex-wrap:wrap;
    margin:14px 0 22px;
}

.order-status-steps a{
    text-decoration:none;
    color:var(--muted);
    background:rgba(255,255,255,.04);
    border:1px solid var(--border);
    padding:8px 15px;
    border-radius:999px;
    font-size:12.5px;
    font-weight:700;
}

.order-status-steps a.current{
    background:rgba(0,212,255,.18);
    border-color:rgba(0,212,255,.45);
    color:#fff;
}

.order-status-steps a.cancel{
    margin-left:auto;
    color:#fca5a5;
    background:rgba(248,113,113,.08);
    border-color:rgba(248,113,113,.3);
}

.order-items-table{
    width:100%;
    border-collapse:collapse;
    font-size:13.5px;
}

.order-items-table th{
    text-align:left;
    color:var(--muted);
    font-weight:700;
    font-size:12px;
    text-transform:uppercase;
    padding:10px 8px;
    border-bottom:1px solid var(--border);
}

.order-items-table td{
    padding:12px 8px;
    border-bottom:1px solid rgba(255,255,255,.06);
}

@media(max-width:600px){
    .order-items-table{display:block;overflow-x:auto;white-space:nowrap;}
}

/* =====================================================================
   MODULE CÔNG TRÌNH - GALLERY DỰ ÁN
   ===================================================================== */
.gallery-grid{
    max-width:1280px;
    margin:0 auto;
    padding:0 20px 60px;
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:22px;
}

.project-card{
    position:relative;
    display:block;
    aspect-ratio:4/3;
    border-radius:22px;
    overflow:hidden;
    text-decoration:none;
    color:#fff;
    background:rgba(255,255,255,.04);
    border:1px solid var(--border);
    transition:.35s;
}

.project-card:hover{
    transform:translateY(-6px);
    box-shadow:0 20px 45px rgba(0,0,0,.4);
    border-color:rgba(0,212,255,.35);
}

.project-card img{
    width:100%;height:100%;
    object-fit:cover;
    transition:transform .5s ease;
}

.project-card:hover img{transform:scale(1.08);}

.project-card-noimg{
    width:100%;height:100%;
    display:flex;align-items:center;justify-content:center;
    font-size:48px;
    background:linear-gradient(135deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
}

.project-card::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(to top, rgba(2,6,20,.94), rgba(2,6,20,.25) 55%, transparent 78%);
    pointer-events:none;
}

.project-card-body{
    position:absolute;
    left:0;right:0;bottom:0;
    padding:18px;
    z-index:2;
}

.project-card-cat{
    display:inline-block;
    font-size:11px;
    font-weight:800;
    letter-spacing:.3px;
    text-transform:uppercase;
    color:var(--accent);
    background:rgba(0,212,255,.15);
    border:1px solid rgba(0,212,255,.35);
    padding:3px 10px;
    border-radius:999px;
    margin-bottom:8px;
}

.project-card-title{
    font-size:17px;
    font-weight:900;
    line-height:1.35;
    text-shadow:0 2px 10px rgba(0,0,0,.5);
}

.project-card-meta{
    margin-top:5px;
    font-size:12.5px;
    color:#cbd5e1;
    display:flex;
    align-items:center;
    gap:6px;
}

.project-image-count{
    position:absolute;
    top:12px;right:12px;
    z-index:3;
    background:rgba(5,12,25,.65);
    backdrop-filter:blur(10px);
    border:1px solid rgba(255,255,255,.15);
    color:#fff;
    font-size:12px;
    font-weight:700;
    padding:5px 12px;
    border-radius:999px;
}

.empty-gallery{
    grid-column:1/-1;
    text-align:center;
    padding:60px 20px;
    color:var(--muted);
}

@media(max-width:992px){
    .gallery-grid{grid-template-columns:repeat(2,1fr);}
}

@media(max-width:768px){
    .gallery-grid{grid-template-columns:repeat(2,1fr);gap:12px;padding:0 16px 50px;}
    .project-card{border-radius:16px;}
    .project-card-body{padding:12px;}
    .project-card-title{font-size:14px;}
    .project-card-meta{font-size:11px;}
    .project-card-cat{font-size:10px;padding:3px 8px;}
    .project-image-count{font-size:11px;padding:4px 9px;top:8px;right:8px;}
}

/* =====================================================================
   CHI TIẾT CÔNG TRÌNH
   ===================================================================== */
.proj-wrap{
    max-width:1100px;
    margin:0 auto;
    padding:30px 20px 60px;
}

.proj-hero{
    position:relative;
    width:100%;
    aspect-ratio:16/8;
    border-radius:24px;
    overflow:hidden;
    background:rgba(255,255,255,.04);
    border:1px solid var(--border);
    display:flex;align-items:center;justify-content:center;
    font-size:70px;
}

.proj-hero img{
    width:100%;height:100%;
    object-fit:cover;
    cursor:zoom-in;
}

.proj-hero::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(to top, rgba(2,6,20,.9), transparent 60%);
    pointer-events:none;
}

.proj-hero-body{
    position:absolute;
    left:0;right:0;bottom:0;
    padding:26px 30px;
    z-index:2;
}

.proj-cat{
    display:inline-block;
    font-size:12px;
    font-weight:800;
    letter-spacing:.4px;
    text-transform:uppercase;
    color:var(--accent);
    background:rgba(0,212,255,.15);
    border:1px solid rgba(0,212,255,.35);
    padding:5px 14px;
    border-radius:999px;
    margin-bottom:12px;
}

.proj-title{
    font-size:clamp(22px,3.4vw,34px);
    font-weight:900;
    color:#fff;
    text-shadow:0 4px 16px rgba(0,0,0,.5);
    line-height:1.3;
}

.proj-meta-row{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin:22px 0;
}

.proj-meta-chip{
    display:flex;
    align-items:center;
    gap:8px;
    padding:10px 16px;
    border-radius:14px;
    background:rgba(255,255,255,.04);
    border:1px solid var(--border);
    font-size:13.5px;
    color:#dbeafe;
}

.proj-desc{
    color:#cbd5e1;
    line-height:1.8;
    font-size:14.5px;
    white-space:pre-line;
    background:rgba(255,255,255,.03);
    border-radius:16px;
    padding:20px 22px;
    margin-bottom:30px;
}

.proj-gallery-title{
    font-size:19px;
    font-weight:900;
    margin-bottom:16px;
}

.proj-gallery-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:12px;
    margin-bottom:40px;
}

.proj-gallery-grid img{
    width:100%;
    aspect-ratio:1/1;
    object-fit:cover;
    border-radius:14px;
    cursor:zoom-in;
    transition:.25s;
    border:1px solid var(--border);
}

.proj-gallery-grid img:hover{
    transform:scale(1.04);
    border-color:rgba(0,212,255,.4);
}

.proj-related h3{font-size:19px;font-weight:900;margin-bottom:18px;}

@media(max-width:768px){
    .proj-hero{aspect-ratio:4/3;border-radius:18px;}
    .proj-hero-body{padding:18px;}
    .proj-meta-row{gap:8px;}
    .proj-meta-chip{padding:8px 13px;font-size:12.5px;}
    .proj-gallery-grid{grid-template-columns:repeat(3,1fr);gap:8px;}
    .proj-gallery-grid img{border-radius:10px;}
    .proj-desc{padding:16px;font-size:14px;}
}

@media(max-width:420px){
    .proj-gallery-grid{grid-template-columns:repeat(2,1fr);}
}

/* =====================================================================
   LIGHTBOX XEM ẢNH TOÀN MÀN HÌNH
   ===================================================================== */
.lightbox-overlay{
    display:none;
    position:fixed;
    inset:0;
    z-index:1000;
    background:rgba(2,6,20,.96);
    backdrop-filter:blur(6px);
    align-items:center;
    justify-content:center;
    touch-action:none;
}

.lightbox-overlay.open{display:flex;}

.lightbox-img-wrap{
    max-width:94vw;
    max-height:82vh;
    display:flex;
    align-items:center;
    justify-content:center;
}

.lightbox-overlay img{
    max-width:94vw;
    max-height:82vh;
    object-fit:contain;
    border-radius:14px;
    box-shadow:0 25px 70px rgba(0,0,0,.6);
    user-select:none;
    -webkit-user-drag:none;
}

.lightbox-close{
    position:absolute;
    top:18px;right:18px;
    width:44px;height:44px;
    border-radius:50%;
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.2);
    color:#fff;
    font-size:20px;
    cursor:pointer;
    display:flex;align-items:center;justify-content:center;
    z-index:1002;
}

.lightbox-nav{
    position:absolute;
    top:50%;
    transform:translateY(-50%);
    width:52px;height:52px;
    border-radius:50%;
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.2);
    color:#fff;
    font-size:24px;
    cursor:pointer;
    display:flex;align-items:center;justify-content:center;
    z-index:1002;
}

.lightbox-prev{left:18px;}
.lightbox-next{right:18px;}

.lightbox-counter{
    position:absolute;
    bottom:22px;left:50%;
    transform:translateX(-50%);
    color:#fff;
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.2);
    padding:6px 16px;
    border-radius:999px;
    font-size:13px;
    font-weight:700;
    z-index:1002;
}

@media(max-width:600px){
    .lightbox-nav{width:42px;height:42px;font-size:19px;}
    .lightbox-prev{left:8px;}
    .lightbox-next{right:8px;}
    .lightbox-close{width:38px;height:38px;top:10px;right:10px;font-size:17px;}
    .lightbox-counter{bottom:14px;font-size:12px;}
}

/* =====================================================================
   ADMIN - CÔNG TRÌNH: hộp ngày tháng + thông tin chip trong form
   ===================================================================== */
.form-row-3{
    display:grid;
    grid-template-columns:1fr 1fr 1fr;
    gap:14px;
}

@media(max-width:768px){
    .form-row-3{grid-template-columns:1fr;}
}