:root{
    --bg:#f3f1f3;
    --surface:#ffffff;
    --surface-soft:#f8f6f8;
    --text:#191419;
    --muted:#746b75;
    --primary:#b3124b;
    --primary-dark:#8f103b;
    --dark:#1c171d;
    --border:#e7e2e7;
    --success:#1f9d62;
    --danger:#d64545;
    --shadow:0 12px 30px rgba(20,14,20,0.08);
    --radius-xl:28px;
    --radius-lg:22px;
    --radius-md:16px;
}

*{
    box-sizing:border-box;
}

html,body{
    margin:0;
    padding:0;
    font-family:Arial, Helvetica, sans-serif;
    background:var(--bg);
    color:var(--text);
}

a{
    text-decoration:none;
    color:inherit;
}

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

button,input,textarea,select{
    font:inherit;
}

.container{
    width:min(1180px, calc(100% - 24px));
    margin:0 auto;
}

/* HEADER */
.site-header{
    position:sticky;
    top:0;
    z-index:1000;
    background:rgba(255,255,255,0.92);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--border);
}

.header-inner{
    min-height:82px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
}

.brand{
    display:flex;
    align-items:center;
    gap:14px;
}

.brand-logo{
    width:50px;
    height:50px;
    object-fit:contain;
}

.brand-text{
    display:flex;
    flex-direction:column;
}

.brand-title{
    font-size:1.2rem;
    font-weight:800;
    color:var(--dark);
}

.brand-subtitle{
    font-size:0.82rem;
    color:var(--muted);
    margin-top:3px;
}

.desktop-nav{
    display:flex;
    align-items:center;
    gap:10px;
    flex-wrap:wrap;
}

.desktop-nav a{
    padding:10px 14px;
    border-radius:12px;
    font-weight:700;
    color:var(--dark);
    transition:0.2s ease;
}

.desktop-nav a:hover{
    background:#f5eef2;
    color:var(--primary);
}

.burger{
    display:none;
    width:46px;
    height:46px;
    border:none;
    background:#f5eef2;
    border-radius:14px;
    cursor:pointer;
    padding:0;
    align-items:center;
    justify-content:center;
    flex-direction:column;
    gap:5px;
}

.burger span{
    width:22px;
    height:2px;
    background:var(--dark);
    border-radius:999px;
}

.mobile-nav{
    display:none;
    border-top:1px solid var(--border);
    background:#fff;
    padding:12px;
}

.mobile-nav.open{
    display:flex;
    flex-direction:column;
    gap:8px;
}

.mobile-nav a{
    padding:14px 16px;
    border-radius:14px;
    background:#faf7f9;
    font-weight:700;
}

.mobile-nav .mobile-logout{
    color:var(--primary);
    background:#f9e7ee;
}

/* PAGE */
.page-shell{
    padding:28px 0 40px;
}

/* TYPO / SECTIONS */
.page-header{
    margin-bottom:22px;
}

.page-header h1{
    margin:10px 0 8px;
    font-size:2rem;
    color:var(--dark);
}

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

.badge{
    display:inline-flex;
    align-items:center;
    padding:8px 14px;
    border-radius:999px;
    background:#f6e3ea;
    color:var(--primary);
    font-size:0.82rem;
    font-weight:800;
}

.hero{
    background:linear-gradient(135deg, #1b171c 0%, #2a1b23 45%, #b3124b 100%);
    color:#fff;
    border-radius:30px;
    padding:34px;
    box-shadow:var(--shadow);
    margin-bottom:24px;
}

.hero h1{
    margin:12px 0;
    font-size:2.2rem;
}

.hero p{
    margin:0;
    color:rgba(255,255,255,0.85);
    max-width:720px;
    line-height:1.6;
}

/* CARDS */
.auth-card,
.filters-card,
.stat-card,
.action-card,
.member-card,
.member-detail-card,
.empty-card{
    background:var(--surface);
    border:1px solid var(--border);
    box-shadow:var(--shadow);
}

.auth-card{
    border-radius:var(--radius-xl);
    padding:28px;
}

.auth-card-lg{
    width:min(100%, 1020px);
}

.filters-card{
    border-radius:24px;
    padding:20px;
    margin-bottom:22px;
}

.stat-card,
.action-card,
.member-card,
.member-detail-card,
.empty-card{
    border-radius:24px;
}

.stat-card,
.action-card,
.member-card{
    padding:22px;
}

.member-detail-card{
    padding:26px;
}

.empty-card{
    padding:28px;
    text-align:center;
    color:var(--muted);
}

/* GRID */
.stats-grid{
    display:grid;
    grid-template-columns:repeat(3, 1fr);
    gap:18px;
    margin-bottom:24px;
}

.quick-actions{
    display:grid;
    grid-template-columns:repeat(3, 1fr);
    gap:18px;
}

.members-grid{
    display:grid;
    grid-template-columns:repeat(3, 1fr);
    gap:18px;
}

.member-detail-grid{
    display:grid;
    grid-template-columns:repeat(2, 1fr);
    gap:18px;
}

.detail-box{
    background:var(--surface-soft);
    border:1px solid var(--border);
    border-radius:20px;
    padding:20px;
}

.detail-box.full{
    grid-column:1 / -1;
}

/* FORMS */
.form-grid{
    display:grid;
    gap:18px;
}

.two-cols{
    grid-template-columns:repeat(2, 1fr);
}

.filters-grid{
    display:grid;
    grid-template-columns:2fr 1fr 1fr auto;
    gap:16px;
    align-items:end;
}

.form-group{
    display:flex;
    flex-direction:column;
    gap:8px;
}

.form-group.full{
    grid-column:1 / -1;
}

.form-group label{
    font-weight:700;
    color:var(--dark);
}

input,textarea,select{
    width:100%;
    padding:14px 15px;
    border:1px solid var(--border);
    border-radius:14px;
    background:#fff;
    color:var(--dark);
    outline:none;
    transition:0.2s ease;
}

input:focus,textarea:focus,select:focus{
    border-color:var(--primary);
    box-shadow:0 0 0 4px rgba(179,18,75,0.12);
}

textarea{
    resize:vertical;
    min-height:120px;
}

.checkbox-group{
    justify-content:flex-end;
}

.checkbox-group label{
    display:flex;
    align-items:center;
    gap:10px;
    font-weight:600;
}

.checkbox-group input{
    width:auto;
}

/* BUTTONS */
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    border:none;
    cursor:pointer;
    border-radius:14px;
    padding:13px 18px;
    font-weight:800;
    transition:0.2s ease;
}

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

.btn-primary{
    background:linear-gradient(135deg, var(--primary), #cf1f63);
    color:#fff;
}

.btn-primary:hover{
    background:linear-gradient(135deg, var(--primary-dark), var(--primary));
}

.btn-outline{
    background:#fff;
    border:1px solid var(--border);
    color:var(--dark);
}

.btn-sm{
    padding:10px 14px;
    font-size:0.9rem;
}

.btn-block{
    width:100%;
}

/* ALERTS */
.alert{
    padding:14px 16px;
    border-radius:16px;
    margin-bottom:18px;
    font-weight:700;
}

.alert-error{
    background:#fff1f1;
    color:var(--danger);
    border:1px solid #ffd3d3;
}

.alert-success{
    background:#eefcf5;
    color:var(--success);
    border:1px solid #bce9cf;
}

/* STATS */
.stat-number{
    font-size:2rem;
    font-weight:900;
    color:var(--dark);
    margin-bottom:8px;
}

.stat-label{
    color:var(--muted);
    font-weight:700;
}

/* ACTIONS */
.action-card h3{
    margin:0 0 8px;
}

.action-card p{
    margin:0;
    color:var(--muted);
    line-height:1.55;
}

.action-card.disabled{
    opacity:0.8;
}

/* MEMBER */
.member-top{
    display:flex;
    align-items:center;
    gap:14px;
    margin-bottom:14px;
}

.member-avatar{
    width:64px;
    height:64px;
    border-radius:18px;
    background:linear-gradient(135deg, #1a151b, #b3124b);
    color:#fff;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:1.2rem;
    font-weight:900;
    overflow:hidden;
    flex-shrink:0;
}

.member-avatar.large{
    width:96px;
    height:96px;
    border-radius:24px;
    font-size:2rem;
}

.member-avatar img{
    width:100%;
    height:100%;
    object-fit:cover;
}

.member-meta h3{
    margin:0 0 6px;
    font-size:1.05rem;
}

.member-company{
    margin:0;
    color:var(--muted);
    font-weight:700;
}

.member-tags{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    margin-bottom:12px;
}

.tag{
    background:#f7e7ee;
    color:var(--primary);
    padding:8px 12px;
    border-radius:999px;
    font-size:0.82rem;
    font-weight:800;
}

.tag-soft{
    background:#f1eef2;
    color:#3b333c;
}

.member-desc{
    line-height:1.55;
    color:var(--text);
    margin:0 0 14px;
}

.member-infos{
    display:grid;
    gap:8px;
    color:var(--muted);
    margin:14px 0;
}

.member-actions{
    display:flex;
    gap:10px;
    flex-wrap:wrap;
    margin-top:14px;
}

.member-actions form{
    margin:0;
}

/* DETAIL */
.member-detail-header{
    display:flex;
    align-items:center;
    gap:18px;
    margin-bottom:24px;
}

.member-detail-main h1{
    margin:10px 0 8px;
    font-size:2rem;
}

.revenue-box{
    background:linear-gradient(135deg,#f9e7ee,#f5dce6);
}

.revenue-amount{
    font-size:2rem;
    font-weight:900;
    color:var(--primary);
}

/* AUTH */
.auth-wrap{
    min-height:calc(100vh - 140px);
    display:flex;
    align-items:center;
    justify-content:center;
}

.auth-card h1{
    margin:0 0 8px;
    font-size:2rem;
}

.auth-subtitle{
    margin:0 0 22px;
    color:var(--muted);
}

.auth-logo{
    width:64px;
    height:64px;
    border-radius:18px;
    background:linear-gradient(135deg,#1a151b,#b3124b);
    color:#fff;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:1.5rem;
    margin-bottom:18px;
}

/* RESPONSIVE */
@media (max-width: 1100px){
    .desktop-nav{
        display:none;
    }

    .burger{
        display:flex;
    }

    .stats-grid,
    .quick-actions,
    .members-grid{
        grid-template-columns:repeat(2, 1fr);
    }
}

@media (max-width: 900px){
    .two-cols,
    .member-detail-grid,
    .filters-grid{
        grid-template-columns:1fr;
    }

    .hero h1{
        font-size:1.9rem;
    }

    .page-header h1{
        font-size:1.7rem;
    }
}

@media (max-width: 680px){
    .container{
        width:min(100% - 16px, 1180px);
    }

    .header-inner{
        min-height:74px;
    }

    .brand-logo{
        width:42px;
        height:42px;
    }

    .brand-title{
        font-size:1rem;
    }

    .brand-subtitle{
        font-size:0.75rem;
    }

    .page-shell{
        padding:18px 0 28px;
    }

    .hero,
    .auth-card,
    .member-card,
    .member-detail-card,
    .stat-card,
    .action-card,
    .filters-card{
        padding:18px;
        border-radius:20px;
    }

    .stats-grid,
    .quick-actions,
    .members-grid{
        grid-template-columns:1fr;
        gap:14px;
    }

    .member-detail-header{
        flex-direction:column;
        align-items:flex-start;
    }

    .member-actions{
        flex-direction:column;
    }

    .member-actions .btn,
    .member-actions a,
    .member-actions button{
        width:100%;
    }
}