:root{
    --navy:#101832;
    --navy-soft:#4A5578;
    --indigo:#3654F4;
    --indigo-dark:#2540C9;
    --amber:#FF8A2B;
    --bg:#F5F7FC;
    --card:#FFFFFF;
    --line:#E4E8F5;
    --success:#158A5B;
    --danger:#D6395A;
}
*{box-sizing:border-box;}
body{
    background:var(--bg);
    font-family:'Inter',sans-serif;
    color:var(--navy);
    margin:0;
}
h1,h2,h3,h4,.brand,.font-display{font-family:'Sora',sans-serif;}

a{text-decoration:none;}

/* Navbar */
.site-nav{background:#fff; border-bottom:1px solid var(--line); position:sticky; top:0; z-index:50;}
.site-nav .brand{font-weight:800; font-size:1.35rem; color:var(--navy); letter-spacing:-.02em;}
.site-nav .brand span{color:var(--indigo);}
.site-nav .nav-link{color:var(--navy-soft); font-weight:600; font-size:.92rem;}
.site-nav .nav-link:hover{color:var(--indigo);}
.site-nav .btn-cta{background:var(--indigo); color:#fff; border-radius:10px; font-weight:600; padding:.5rem 1.2rem; font-size:.9rem;}
.site-nav .btn-cta:hover{background:var(--indigo-dark); color:#fff;}
.site-nav .btn-ghost{border:1px solid var(--line); color:var(--navy); border-radius:10px; font-weight:600; padding:.5rem 1.2rem; font-size:.9rem;}

/* Hero */
.hero{
    background:linear-gradient(135deg, #121A38 0%, #1B2554 55%, #2540C9 130%);
    color:#fff;
    border-radius:24px;
    padding:56px 40px;
    position:relative;
    overflow:hidden;
}
.hero::after{
    content:"";
    position:absolute; right:-60px; top:-60px; width:280px; height:280px;
    background:radial-gradient(circle, rgba(255,138,43,.35), transparent 70%);
}
.hero h1{font-size:2.6rem; font-weight:800; line-height:1.15;}
.hero p{color:#C7CEEF; font-size:1.05rem;}
.hero .btn-amber{background:var(--amber); color:#151515; font-weight:700; border-radius:12px; padding:.75rem 1.6rem;}
.hero .btn-amber:hover{background:#e77a1e; color:#151515;}
.hero .stat{font-size:1.6rem; font-weight:800;}
.hero .stat-label{color:#9AA5D8; font-size:.8rem; text-transform:uppercase; letter-spacing:.08em;}

/* Cards */
.card-panel{background:var(--card); border:1px solid var(--line); border-radius:16px; box-shadow:0 8px 24px rgba(16,24,50,.04);}
.t-card{background:#fff; border:1px solid var(--line); border-radius:16px; overflow:hidden; transition:transform .15s ease, box-shadow .15s ease;}
.t-card:hover{transform:translateY(-3px); box-shadow:0 14px 30px rgba(16,24,50,.09);}
.t-card .banner{height:150px; background:linear-gradient(135deg,#1B2554,#3654F4); display:flex; align-items:center; justify-content:center; color:#fff; font-family:'Sora',sans-serif; font-weight:700; font-size:1.1rem;}
.t-card .banner img{width:100%; height:100%; object-fit:cover;}
.t-card .body{padding:18px;}
.t-card .type-badge{display:inline-block; background:#EEF1FE; color:var(--indigo); font-weight:700; font-size:.72rem; padding:3px 10px; border-radius:20px; text-transform:uppercase; letter-spacing:.04em;}
.t-card .prize{color:var(--amber); font-weight:800; font-size:1.05rem;}
.t-card .meta{color:var(--navy-soft); font-size:.85rem;}
.t-card .btn-join{background:var(--navy); color:#fff; border-radius:10px; font-weight:600; width:100%; padding:.55rem;}
.t-card .btn-join:hover{background:var(--indigo);}

/* Forms */
.form-label{font-weight:600; font-size:.88rem; color:var(--navy);}
.form-control, .form-select{border-radius:10px; border-color:var(--line); padding:.6rem .9rem;}
.form-control:focus, .form-select:focus{border-color:var(--indigo); box-shadow:0 0 0 3px rgba(54,84,244,.12);}
.btn-primary{background:var(--indigo); border-color:var(--indigo); border-radius:10px; font-weight:600;}
.btn-primary:hover{background:var(--indigo-dark); border-color:var(--indigo-dark);}
.btn-outline-amber{border:1px solid var(--amber); color:var(--amber); border-radius:10px; font-weight:600;}
.btn-outline-amber:hover{background:var(--amber); color:#151515;}

.auth-shell{max-width:440px; margin:60px auto;}

/* Dashboard */
.stat-card{background:#fff; border:1px solid var(--line); border-radius:16px; padding:20px;}
.stat-card .val{font-size:1.6rem; font-weight:800; font-family:'Sora',sans-serif;}
.stat-card .lbl{color:var(--navy-soft); font-size:.85rem;}
.wallet-balance{background:linear-gradient(135deg,#101832,#2540C9); color:#fff; border-radius:18px; padding:28px;}
.wallet-balance .amount{font-size:2.2rem; font-weight:800; font-family:'Sora',sans-serif;}

.badge-pending{background:#FFF2E2; color:#B9660B; padding:4px 10px; border-radius:20px; font-size:.78rem; font-weight:700;}
.badge-approved, .badge-active{background:#E4F7EE; color:var(--success); padding:4px 10px; border-radius:20px; font-size:.78rem; font-weight:700;}
.badge-rejected, .badge-banned{background:#FCE8EC; color:var(--danger); padding:4px 10px; border-radius:20px; font-size:.78rem; font-weight:700;}
.badge-completed{background:#EEF1FE; color:var(--indigo); padding:4px 10px; border-radius:20px; font-size:.78rem; font-weight:700;}

table.styled-table{width:100%; border-collapse:collapse;}
table.styled-table th{text-align:left; font-size:.78rem; text-transform:uppercase; letter-spacing:.05em; color:var(--navy-soft); padding:10px 12px; border-bottom:1px solid var(--line);}
table.styled-table td{padding:12px; border-bottom:1px solid var(--line); font-size:.9rem;}

/* Admin */
.admin-shell{display:flex; min-height:100vh;}
.admin-sidebar{width:250px; background:var(--navy); color:#fff; flex-shrink:0;}
.admin-sidebar .brand{padding:22px 24px; font-weight:800; font-size:1.2rem; border-bottom:1px solid rgba(255,255,255,.08);}
.admin-sidebar .brand span{color:var(--amber);}
.admin-sidebar a{display:block; color:#B7C0E8; padding:12px 24px; font-weight:600; font-size:.9rem;}
.admin-sidebar a:hover, .admin-sidebar a.active{background:rgba(255,255,255,.06); color:#fff; border-right:3px solid var(--amber);}
.admin-content{flex:1; padding:32px; max-width:100%;}
.admin-topbar{display:flex; justify-content:space-between; align-items:center; margin-bottom:24px;}

.footer-site{background:#101832; color:#9AA5D8; padding:40px 0; margin-top:64px;}
.footer-site a{color:#C7CEEF;}
.footer-site a:hover{color:#fff;}

@media (max-width: 768px){
    .hero h1{font-size:1.9rem;}
    .admin-sidebar{position:fixed; left:-250px; top:0; bottom:0; z-index:100; transition:left .2s;}
    .admin-sidebar.open{left:0;}
}