:root{
    --bg:#07111f;
    --panel:#0d1b2f;
    --card:#10233d;
    --line:#233b5e;
    --text:#eef6ff;
    --muted:#9db2ce;
    --accent:#26d07c;
    --gold:#f7c948;
    --danger:#ff6b6b;
}

*{
    box-sizing:border-box;
}

body{
    margin:0;
    font-family:Inter,Segoe UI,Arial,sans-serif;
    background:linear-gradient(135deg,#04101e,#0b2441);
    color:var(--text);
}

a{
    color:inherit;
}

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

.sidebar{
    width:260px;
    height:100vh;
    overflow-y:auto;
    overflow-x:hidden;
    position:fixed;
    left:0;
    top:0;
    background:#0f172a;
    padding:20px;
    z-index:1000;
}

.sidebar::-webkit-scrollbar{
    width:8px;
}

.sidebar::-webkit-scrollbar-thumb{
    background:#334155;
    border-radius:20px;
}

.sidebar::-webkit-scrollbar-track{
    background:transparent;
}

.sidebar nav a.active{
    background:linear-gradient(135deg,#2563eb,#1d4ed8);
    color:white;
    font-weight:800;
    box-shadow:0 8px 18px rgba(37,99,235,.22);
}

.brand{
    display:flex;
    gap:12px;
    align-items:center;
    margin-bottom:28px;
}

.logo{
    width:50px;
    height:50px;
    border-radius:16px;
    background:linear-gradient(135deg,var(--accent),#1389ff);
    display:grid;
    place-items:center;
    font-weight:900;
    color:#03121f;
}

.brand small{
    display:block;
    color:var(--muted);
    margin-top:4px;
}

nav a{
    display:block;
    text-decoration:none;
    padding:13px 14px;
    border-radius:14px;
    color:#dbeafe;
    margin:6px 0;
}

nav a:hover{
    background:#132948;
}

.main{
    flex:1;
    margin-left:260px;
    padding:28px;
    width:calc(100% - 260px);
    max-width:none;
    overflow-x:auto;
}

.top{
    display:flex;
    justify-content:space-between;
    gap:18px;
    align-items:center;
    margin-bottom:22px;
}

.title h1{
    margin:0 0 6px;
    font-size:30px;
}

.title p{
    margin:0;
    color:var(--muted);
}

.grid{
    display:grid;
    grid-template-columns:repeat(4,minmax(180px,1fr));
    gap:16px;
}

.card{
    background:rgba(16,35,61,.92);
    border:1px solid var(--line);
    border-radius:22px;
    padding:18px;
    box-shadow:0 18px 45px rgba(0,0,0,.18);
}

.kpi small{
    color:var(--muted);
    display:block;
}

.kpi strong{
    font-size:28px;
    margin-top:8px;
    display:block;
}

.kpi .good{
    color:var(--accent);
}

.kpi .warn{
    color:var(--gold);
}

.table-card{
    margin-top:18px;
    overflow-x:auto;
}

.table{
    width:100%;
    border-collapse:collapse;
}

.table th,
.table td{
    padding:12px;
    border-bottom:1px solid var(--line);
    text-align:left;
    white-space:nowrap;
}

.table th{
    color:#b9c9df;
    font-size:13px;
    text-transform:uppercase;
}

.badge{
    padding:6px 10px;
    border-radius:999px;
    background:#173456;
    border:1px solid #2d4c73;
    font-size:12px;
}

.paid{
    background:rgba(38,208,124,.12);
    color:#7cf0b2;
}

.pending{
    background:rgba(247,201,72,.12);
    color:#ffe08a;
}

.danger{
    background:rgba(255,107,107,.12);
    color:#ffa3a3;
}

.btn{
    border:0;
    border-radius:13px;
    padding:11px 14px;
    background:linear-gradient(135deg,var(--accent),#17a2ff);
    color:#001525;
    font-weight:800;
    cursor:pointer;
    text-decoration:none;
    display:inline-block;
    white-space:nowrap;
}

.btn.secondary{
    background:#19304f;
    color:#e6f0ff;
    border:1px solid var(--line);
}

input,
select,
textarea{
    width:100%;
    padding:11px 12px;
    border-radius:12px;
    border:1px solid var(--line);
    background:#07182b;
    color:var(--text);
}

label{
    font-size:13px;
    color:var(--muted);
    display:block;
    margin:0 0 7px;
}

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

.alert{
    padding:12px 14px;
    border-radius:14px;
    margin:12px 0;
    background:#122a49;
    border:1px solid var(--line);
}

.login-page{
    min-height:100vh;
    display:grid;
    place-items:center;
    padding:20px;
}

.login-box{
    width:min(430px,100%);
}

.copybox{
    min-height:180px;
}

.actions{
    display:flex;
    gap:8px;
    flex-wrap:wrap;
}

.mobile-menu{
    display:none;
}

.mobile-toggle{
    display:none;
    margin-bottom:15px;
}

/* DARK MODE */

body.dark{
    background:#020617;
    color:white;
}

body.dark .card{
    background:#0f172a;
    color:white;
}

body.dark .table{
    color:white;
}

body.dark input,
body.dark select,
body.dark textarea{
    background:#1e293b;
    color:white;
    border:1px solid #334155;
}

body.dark a{
    color:#93c5fd;
}

/* TABLET / MOBILE */

@media(max-width:900px){

    .layout{
        display:block;
    }

    .main{
        margin-left:0;
        width:100%;
        padding:18px;
    }

    .grid{
        grid-template-columns:1fr 1fr;
    }

    .form-grid{
        grid-template-columns:1fr;
    }

    .mobile-toggle{
        display:inline-block;
    }

    .sidebar{
        display:none;
        position:relative;
        width:100%;
        height:auto;
    }

    .sidebar.show{
        display:block;
    }
}

/* SMALL MOBILE */

@media(max-width:700px){

    .table-card{
        overflow-x:auto;
        -webkit-overflow-scrolling:touch;
    }

    .table{
        min-width:800px;
        display:block;
    }

    .table th,
    .table td{
        font-size:13px;
        padding:10px;
    }

    .btn{
        padding:9px 11px;
        font-size:13px;
    }

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

@media(max-width:560px){

    .grid{
        grid-template-columns:1fr;
    }

    .top{
        display:block;
    }

    .title h1{
        font-size:24px;
    }
}


/* MEMBER TABLE BUTTON FIX */

.member-actions{
    display:flex;
    gap:6px;
    align-items:center;
    flex-wrap:wrap;
}

.member-actions .btn{
    padding:6px 11px;
    font-size:12px;
    border-radius:10px;
    min-height:auto;
    line-height:1.2;
}

.member-actions form{
    margin:0;
}

.member-actions .btn.secondary{
    background:#17304d;
    border:1px solid #29496d;
}

.member-actions .btn:hover{
    transform:translateY(-1px);
}

/* CLEAN MEMBER TABLE */

.member-name-block{
    display:flex;
    align-items:center;
    gap:12px;
}

.member-avatar{
    width:48px;
    height:48px;
    object-fit:cover;
    border-radius:14px;
    border:2px solid #26d07c;
}

.member-avatar-empty{
    width:48px;
    height:48px;
    border-radius:14px;
    background:#132948;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:24px;
}

.member-name-block strong{
    display:block;
    font-size:15px;
    margin-bottom:2px;
}

.member-name-block small{
    display:block;
    color:#9db2ce;
    font-size:12px;
    line-height:1.4;
}

.member-meta{
    line-height:1.6;
}

.member-meta small{
    display:block;
    color:#9db2ce;
    font-size:11px;
    margin-bottom:2px;
}

.member-meta b{
    font-size:14px;
}

.member-list-card .table td{
    vertical-align:middle;
}

.member-list-card .table th{
    font-size:12px;
    letter-spacing:.5px;
}


button{
    background:#2563eb;
    color:white;
    border:none;
    padding:14px 30px;
    border-radius:12px;
    font-size:15px;
    font-weight:bold;
    cursor:pointer;
}

button:hover{
    background:#1d4ed8;
}

@media print{
    button{
        display:none;
    }
}


.btn.danger{
    background:linear-gradient(135deg,#dc2626,#b91c1c);
    color:white;
    border:none;
}

.btn.danger:hover{
    background:linear-gradient(135deg,#ef4444,#dc2626);
}

.btn.secondary{
    background:#19304f;
    color:#e6f0ff;
    border:1px solid #29496d;
}