*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:'Inter',Arial,sans-serif;
}

body{
    background:#0d0d0d;
    color:#fff;
}

h1,h2,h3{
    font-family:'Poppins',sans-serif;
}

/* ============ LOGIN SCREEN ============ */

.login-screen{
    position:fixed;
    inset:0;
    display:flex;
    justify-content:center;
    align-items:center;
    background:radial-gradient(circle at 50% 20%,#1a1a1a,#0a0a0a 70%);
    z-index:5000;
    padding:20px;
}

.login-box{
    width:400px;
    max-width:100%;
    background:#161616;
    border:1px solid rgba(255,215,0,.25);
    border-radius:20px;
    padding:45px 35px;
    text-align:center;
    box-shadow:0 25px 60px rgba(0,0,0,.5);
}

.login-logo{
    width:70px;
    height:70px;
    margin:0 auto 20px;
    background:#FFD700;
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
}

.login-logo i{
    font-size:30px;
    color:#111;
}

.login-box h1{
    color:#FFD700;
    font-size:26px;
    margin-bottom:8px;
}

.login-sub{
    color:#999;
    font-size:14px;
    margin-bottom:30px;
}

.login-field{
    text-align:left;
    margin-bottom:18px;
}

.login-field label{
    display:block;
    font-size:13px;
    color:#FFD700;
    margin-bottom:6px;
    font-weight:600;
}

.login-field input{
    width:100%;
    padding:14px;
    background:#222;
    border:1px solid #3a3a3a;
    border-radius:10px;
    color:#fff;
    font-size:15px;
    outline:none;
    transition:.25s;
}

.login-field input:focus{
    border-color:#FFD700;
    box-shadow:0 0 0 3px rgba(255,215,0,.15);
}

#adminLoginBtn{
    width:100%;
    padding:15px;
    margin-top:10px;
    background:#FFD700;
    color:#111;
    border:none;
    border-radius:10px;
    font-size:16px;
    font-weight:700;
    cursor:pointer;
    display:flex;
    align-items:center;
    justify-content:center;
    gap:10px;
    transition:.25s;
}

#adminLoginBtn:hover{
    transform:translateY(-2px);
    box-shadow:0 10px 25px rgba(255,215,0,.3);
}

.login-error{
    color:#ff5c5c;
    font-size:14px;
    margin-top:15px;
    min-height:18px;
}

.back-site{
    display:inline-flex;
    align-items:center;
    gap:8px;
    margin-top:20px;
    color:#888;
    text-decoration:none;
    font-size:14px;
}

.back-site:hover{
    color:#FFD700;
}

/* ============ ADMIN APP ============ */

.admin-app{
    display:none;
    min-height:100vh;
}

.admin-app.show{
    display:flex;
}

.sidebar{
    width:260px;
    background:#141414;
    border-right:1px solid rgba(255,215,0,.15);
    padding:25px;
    position:fixed;
    top:0;
    bottom:0;
    left:0;
    display:flex;
    flex-direction:column;
}

.sidebar .logo{
    text-align:center;
    margin-bottom:35px;
}

.sidebar .logo h2{
    color:#FFD700;
}

.sidebar .logo span{
    color:#999;
    font-size:13px;
}

.sidebar nav{
    display:flex;
    flex-direction:column;
    gap:8px;
    flex:1;
}

.nav-link{
    color:#ccc;
    text-decoration:none;
    padding:13px 15px;
    border-radius:10px;
    font-size:15px;
    display:flex;
    align-items:center;
    gap:12px;
    transition:.25s;
}

.nav-link i{
    width:18px;
    text-align:center;
}

.nav-link:hover{
    background:#222;
    color:#FFD700;
}

.nav-link.active{
    background:#FFD700;
    color:#111;
    font-weight:700;
}

#adminLogoutBtn{
    background:#2a2a2a;
    color:#fff;
    border:1px solid #444;
    padding:13px;
    border-radius:10px;
    cursor:pointer;
    font-weight:600;
    display:flex;
    align-items:center;
    justify-content:center;
    gap:10px;
    transition:.25s;
}

#adminLogoutBtn:hover{
    background:#e74c3c;
    border-color:#e74c3c;
}

.main-content{
    margin-left:260px;
    width:calc(100% - 260px);
    padding:30px 35px 60px;
}

.top-bar{
    display:flex;
    justify-content:space-between;
    align-items:center;
    margin-bottom:30px;
}

.top-bar h1{
    color:#FFD700;
    font-size:28px;
}

.top-bar p{
    color:#999;
    margin-top:4px;
    font-size:14px;
}

.admin-chip{
    background:#1c1c1c;
    border:1px solid rgba(255,215,0,.3);
    padding:10px 18px;
    border-radius:30px;
    display:flex;
    align-items:center;
    gap:8px;
    color:#FFD700;
    font-weight:600;
}

/* ============ SECTIONS ============ */

.content-section{
    display:none;
}

.content-section.active{
    display:block;
    animation:fadeIn .35s ease;
}

@keyframes fadeIn{
    from{opacity:0;transform:translateY(12px);}
    to{opacity:1;transform:translateY(0);}
}

/* ============ STAT CARDS ============ */

.stat-cards{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
    gap:20px;
    margin-bottom:30px;
}

.stat-cards.small{
    margin-bottom:25px;
}

.stat-card{
    background:#161616;
    border:1px solid rgba(255,255,255,.06);
    border-radius:16px;
    padding:22px;
    display:flex;
    align-items:center;
    gap:18px;
    transition:.3s;
}

.stat-card:hover{
    border-color:#FFD700;
    transform:translateY(-4px);
}

.stat-card i{
    font-size:26px;
    color:#FFD700;
    width:50px;
    height:50px;
    background:rgba(255,215,0,.1);
    border-radius:12px;
    display:flex;
    align-items:center;
    justify-content:center;
}

.stat-card h3{
    font-size:24px;
    color:#fff;
}

.stat-card p{
    color:#999;
    font-size:13px;
    margin-top:3px;
}

/* ============ PANELS ============ */

.panel{
    background:#141414;
    border:1px solid rgba(255,255,255,.06);
    border-radius:18px;
    padding:28px;
    margin-bottom:28px;
}

.panel-head{
    display:flex;
    justify-content:space-between;
    align-items:center;
    flex-wrap:wrap;
    gap:15px;
    margin-bottom:22px;
}

.panel-head h2{
    color:#FFD700;
    font-size:20px;
    display:flex;
    align-items:center;
    gap:10px;
}

.panel-actions{
    display:flex;
    gap:10px;
    align-items:center;
}

.panel-actions input{
    background:#222;
    border:1px solid #3a3a3a;
    color:#fff;
    padding:10px 14px;
    border-radius:8px;
    outline:none;
}

.panel-actions input:focus{
    border-color:#FFD700;
}

.ghost-btn{
    background:transparent;
    border:1px solid #FFD700;
    color:#FFD700;
    padding:10px 16px;
    border-radius:8px;
    cursor:pointer;
    font-weight:600;
    transition:.25s;
    display:flex;
    align-items:center;
    gap:8px;
}

.ghost-btn:hover{
    background:#FFD700;
    color:#111;
}

/* ============ TABLE ============ */

.table-wrap{
    overflow-x:auto;
}

.data-table{
    width:100%;
    border-collapse:collapse;
    min-width:600px;
}

.data-table th{
    text-align:left;
    background:#1e1e1e;
    color:#FFD700;
    padding:14px;
    font-size:13px;
    text-transform:uppercase;
    letter-spacing:.5px;
}

.data-table td{
    padding:14px;
    border-bottom:1px solid #232323;
    font-size:14px;
    color:#eee;
}

.data-table tbody tr:hover{
    background:#1a1a1a;
}

.data-table .empty-row td{
    text-align:center;
    color:#777;
    padding:30px;
}

.badge{
    padding:5px 12px;
    border-radius:20px;
    font-size:12px;
    font-weight:700;
    display:inline-block;
}

.badge.active,.badge.paid,.badge.present{
    background:rgba(46,204,113,.15);
    color:#2ecc71;
}

.badge.inactive,.badge.due,.badge.absent{
    background:rgba(231,76,60,.15);
    color:#e74c3c;
}

.table-btn{
    background:#222;
    border:1px solid #3a3a3a;
    color:#fff;
    padding:8px 12px;
    border-radius:7px;
    cursor:pointer;
    margin-right:6px;
    font-size:13px;
    transition:.2s;
}

.table-btn:hover{
    background:#FFD700;
    color:#111;
    border-color:#FFD700;
}

.table-btn.danger:hover{
    background:#e74c3c;
    border-color:#e74c3c;
    color:#fff;
}

/* ============ FORMS ============ */

.form-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
    gap:20px;
    margin-bottom:20px;
}

.form-group{
    display:flex;
    flex-direction:column;
}

.form-group.inline-select{
    max-width:400px;
    margin-bottom:25px;
}

.form-group label{
    color:#FFD700;
    font-size:13px;
    font-weight:600;
    margin-bottom:8px;
}

.form-group input,
.form-group select,
.form-group textarea{
    background:#1e1e1e;
    border:1px solid #3a3a3a;
    color:#fff;
    padding:12px;
    border-radius:9px;
    font-size:14px;
    outline:none;
    transition:.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus{
    border-color:#FFD700;
}

textarea{
    resize:vertical;
}

.primary-action{
    background:#FFD700;
    color:#111;
    border:none;
    padding:14px 26px;
    border-radius:10px;
    font-weight:700;
    cursor:pointer;
    display:inline-flex;
    align-items:center;
    gap:10px;
    transition:.25s;
}

.primary-action:hover{
    transform:translateY(-2px);
    box-shadow:0 10px 22px rgba(255,215,0,.3);
}

.danger-action{
    background:transparent;
    color:#e74c3c;
    border:1px solid #e74c3c;
    padding:14px 26px;
    border-radius:10px;
    font-weight:700;
    cursor:pointer;
    display:inline-flex;
    align-items:center;
    gap:10px;
    transition:.25s;
}

.danger-action:hover{
    background:#e74c3c;
    color:#fff;
}

.form-msg{
    margin-top:15px;
    font-size:14px;
    font-weight:600;
}

.form-msg.success{ color:#2ecc71; }
.form-msg.error{ color:#e74c3c; }

.hint-text{
    background:rgba(255,215,0,.08);
    border:1px solid rgba(255,215,0,.25);
    padding:14px 18px;
    border-radius:10px;
    color:#e6c94d;
    font-size:14px;
    margin-bottom:22px;
    display:flex;
    gap:10px;
    align-items:flex-start;
}

/* ============ PROGRESS ============ */

.chart-box{
    background:#191919;
    border-radius:14px;
    padding:20px;
    height:320px;
}

/* ============ NOTIFICATIONS ============ */

.notif-list{
    display:flex;
    flex-direction:column;
    gap:14px;
}

.notif-item{
    background:#1a1a1a;
    border-left:4px solid #FFD700;
    border-radius:10px;
    padding:16px 18px;
    display:flex;
    justify-content:space-between;
    gap:15px;
    align-items:flex-start;
}

.notif-item h4{
    color:#FFD700;
    margin-bottom:6px;
    font-size:15px;
}

.notif-item p{
    color:#ccc;
    font-size:14px;
    line-height:1.6;
}

.notif-item small{
    color:#777;
    display:block;
    margin-top:8px;
}

.notif-item button{
    background:transparent;
    border:1px solid #e74c3c;
    color:#e74c3c;
    border-radius:8px;
    padding:8px 12px;
    cursor:pointer;
    flex-shrink:0;
}

.notif-item button:hover{
    background:#e74c3c;
    color:#fff;
}

/* ============ MODAL ============ */

.modal-overlay{
    display:none;
    position:fixed;
    inset:0;
    background:rgba(0,0,0,.75);
    z-index:6000;
    justify-content:center;
    align-items:center;
    padding:20px;
}

.modal-overlay.show{
    display:flex;
}

.modal-box{
    background:#161616;
    border:2px solid #FFD700;
    border-radius:20px;
    width:100%;
    max-width:700px;
    max-height:88vh;
    overflow-y:auto;
    padding:35px;
    position:relative;
}

.modal-close{
    position:absolute;
    right:22px;
    top:15px;
    font-size:30px;
    color:#FFD700;
    cursor:pointer;
}

.modal-box h2{
    color:#FFD700;
    margin-bottom:20px;
}

.modal-tabs{
    display:flex;
    gap:10px;
    margin-bottom:22px;
    border-bottom:1px solid #2a2a2a;
}

.tab-btn{
    background:none;
    border:none;
    color:#999;
    padding:10px 16px;
    cursor:pointer;
    font-weight:600;
    font-size:14px;
    border-bottom:2px solid transparent;
}

.tab-btn.active{
    color:#FFD700;
    border-color:#FFD700;
}

.tab-panel{
    display:none;
}

.tab-panel.active{
    display:block;
}

.modal-actions{
    display:flex;
    gap:12px;
    flex-wrap:wrap;
    margin-top:10px;
}

.attendance-summary{
    color:#ccc;
    font-size:15px;
    line-height:2;
}

/* ============ RESPONSIVE ============ */

@media(max-width:900px){

    .sidebar{
        position:relative;
        width:100%;
        height:auto;
    }

    .admin-app.show{
        flex-direction:column;
    }

    .main-content{
        margin-left:0;
        width:100%;
        padding:20px;
    }

    .top-bar{
        flex-direction:column;
        align-items:flex-start;
        gap:12px;
    }

    .panel-head{
        flex-direction:column;
        align-items:flex-start;
    }

}