/* ============================================================
   LBC FTTH - تصميم 4K فاخر
   ============================================================ */
:root {
    --primary: #4361ee;
    --primary-dark: #3a56d4;
    --primary-light: #6c8aff;
    --accent: #6f42c1;
    --accent-light: #9b6fe8;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --dark: #0f172a;
    --dark-card: #1e293b;
    --bg-body: #f0f4ff;
    --bg-card: #ffffff;
    --text: #334155;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-lg: 24px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
    --shadow: 0 4px 24px rgba(0,0,0,0.06);
    --shadow-lg: 0 12px 48px rgba(0,0,0,0.08);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.1);
    --glass: rgba(255,255,255,0.7);
}

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

body {
    background: var(--bg-body);
    color: var(--text);
    overflow-x: hidden;
    font-size: 15px;
    line-height: 1.7;
}

/* ========== App Container ========== */
.app-container { display: flex; min-height: 100vh; }

/* ========== Sidebar 4K ========== */
.sidebar {
    width: 370px;
    flex-shrink: 0;
    background: linear-gradient(180deg, #0f172a 0%, #1e1b4b 100%);
    color: #fff;
    display: flex;
    flex-direction: column;
    position: relative;
    min-height: 100vh;
    height: auto;
    transition: all 0.35s cubic-bezier(0.4,0,0.2,1);
    box-shadow: 4px 0 40px rgba(15,23,42,0.3);
    border-left: 1px solid rgba(255,255,255,0.05);
    overflow: hidden;
}

.sidebar-brand {
    padding: 28px 24px;
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 1.3rem;
    font-weight: 800;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    background: rgba(255,255,255,0.02);
    letter-spacing: -0.5px;
}
.sidebar-brand i {
    font-size: 1.8rem;
    background: linear-gradient(135deg, var(--primary-light), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar-user {
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.user-avatar {
    width: 48px; height: 48px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem; color: #fff;
    box-shadow: 0 4px 15px rgba(67,97,238,0.3);
}
.user-info h6 { margin: 0; font-size: 1.05rem; font-weight: 700; }
.user-info span { font-size: 0.85rem; opacity: 0.6; }

.sidebar-menu {
    flex: 1;
    overflow-y: auto;
    padding: 16px 14px;
}
.sidebar-menu ul { list-style: none; padding: 0; margin: 0; }
.sidebar-menu li { margin-bottom: 4px; }
.sidebar-menu li a {
    display: flex; align-items: center; gap: 14px;
    padding: 14px 20px;
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.25s;
    font-size: 1.2rem;
    font-weight: 600;
    position: relative;
}
.sidebar-menu li a i {
    width: 30px; font-size: 1.35rem; text-align: center;
    opacity: 0.7; transition: opacity 0.25s;
}
.sidebar-menu li a:hover,
.sidebar-menu li.active a {
    color: #fff;
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(10px);
}
.sidebar-menu li a:hover i,
.sidebar-menu li.active a i { opacity: 1; }
.sidebar-menu li.active a {
    background: linear-gradient(135deg, rgba(67,97,238,0.3), rgba(111,66,193,0.3));
    border: 1px solid rgba(255,255,255,0.1);
    box-shadow: 0 4px 15px rgba(67,97,238,0.15);
}
.sidebar-menu li.logout-link {
    margin-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.06);
    padding-top: 16px;
}

/* ========== Main Content ========== */
.main-content {
    flex: 1;
    margin-right: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: all 0.35s cubic-bezier(0.4,0,0.2,1);
}

/* ========== Topbar 4K ========== */
.topbar {
    height: 72px;
    background: rgba(255,255,255,0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(226,232,240,0.6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    position: sticky;
    top: 0;
    z-index: 900;
}
.topbar-toggle {
    background: none; border: none;
    font-size: 1.4rem; color: var(--primary);
    cursor: pointer; padding: 8px 12px;
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.2s;
}
.topbar-toggle:hover { background: rgba(67,97,238,0.08); }

/* ========== Content Wrapper ========== */
.content-wrapper {
    padding: 28px 32px;
    flex: 1;
}

/* ========== Cards 4K ========== */
.custom-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(226,232,240,0.6);
    box-shadow: var(--shadow);
    padding: 28px;
    margin-bottom: 24px;
    transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}
.custom-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: rgba(67,97,238,0.15);
}
.card-title-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 14px;
}
.card-title-container h5 {
    margin: 0; font-weight: 800;
    font-size: 1.15rem; color: var(--dark);
    display: flex; align-items: center; gap: 8px;
}

/* ========== Stat Cards 4K ========== */
.stat-card {
    display: flex; align-items: center; justify-content: space-between;
    transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
    padding: 4px;
}
.stat-card-link { text-decoration: none; }
.stat-card-link:hover .stat-card {
    transform: translateY(-4px);
}
.stat-card-link:hover .custom-card {
    box-shadow: var(--shadow-xl);
}
.stat-icon {
    width: 60px; height: 60px;
    border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.6rem;
}
.stat-info h3 {
    font-size: 1.7rem; font-weight: 800;
    margin-bottom: 4px;
    background: linear-gradient(135deg, var(--dark), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.stat-info span { font-size: 0.85rem; color: var(--text-muted); }
.icon-primary { background: rgba(67,97,238,0.08); color: var(--primary); }
.icon-success { background: rgba(16,185,129,0.08); color: var(--success); }
.icon-danger { background: rgba(239,68,68,0.08); color: var(--danger); }
.icon-warning { background: rgba(245,158,11,0.08); color: var(--warning); }

/* ========== Tables 4K ========== */
.table-responsive {
    border-radius: var(--radius);
    overflow-x: auto;
    border: 1px solid var(--border);
}
.table { margin-bottom: 0; }
.table thead th {
    background: linear-gradient(180deg, #f8fafc, #f1f5f9);
    color: var(--dark);
    font-weight: 700;
    border-bottom: 2px solid var(--border);
    padding: 15px 18px;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}
.table tbody td {
    padding: 14px 18px;
    vertical-align: middle;
    font-size: 0.9rem;
    color: var(--text);
    border-bottom: 1px solid #f1f5f9;
    transition: background 0.2s;
}
.table tbody tr:hover { background: rgba(67,97,238,0.02); }

/* ========== Badges 4K ========== */
.badge {
    font-weight: 600;
    letter-spacing: 0.2px;
}

/* ========== Login Page 4K ========== */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(67,97,238,0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(111,66,193,0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 80%, rgba(16,185,129,0.08) 0%, transparent 50%),
        linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
    position: relative;
    overflow: hidden;
}
.login-body::before {
    content: '';
    position: absolute;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(255,255,255,0.03) 0%, transparent 70%);
    border-radius: 50%;
    top: -200px; right: -200px;
}
.login-body::after {
    content: '';
    position: absolute;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.03) 0%, transparent 70%);
    border-radius: 50%;
    bottom: -100px; left: -100px;
}

.login-card {
    background: rgba(255,255,255,0.97);
    border-radius: 28px;
    box-shadow: 0 25px 80px rgba(0,0,0,0.25), 0 0 0 1px rgba(255,255,255,0.1);
    width: 100%;
    max-width: 440px;
    padding: 48px 36px;
    backdrop-filter: blur(20px);
    position: relative;
    z-index: 1;
}
.login-logo {
    text-align: center;
    font-size: 3.2rem;
    margin-bottom: 8px;
}
.login-logo i {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.login-card h3 {
    font-weight: 800;
    color: var(--dark);
    text-align: center;
    margin-bottom: 4px;
    font-size: 1.5rem;
}
.login-card .form-control {
    border-radius: 12px;
    padding: 14px 18px;
    border: 2px solid #e8ecf4;
    background: #f8fafd;
    font-size: 0.95rem;
    transition: all 0.3s;
}
.login-card .form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(67,97,238,0.08);
    background: #fff;
}
.login-card .btn-primary {
    border-radius: 12px;
    padding: 14px;
    font-weight: 700;
    font-size: 1rem;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border: none;
    box-shadow: 0 4px 20px rgba(67,97,238,0.3);
    transition: all 0.3s;
}
.login-card .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(67,97,238,0.4);
}

/* ========== Forms 4K ========== */
.form-control, .form-select {
    border-radius: var(--radius-sm);
    border: 2px solid #e8ecf4;
    padding: 12px 16px;
    font-size: 0.92rem;
    transition: all 0.3s;
}
.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(67,97,238,0.06);
}
.form-label { font-weight: 700; font-size: 0.88rem; color: var(--text); margin-bottom: 6px; }

/* ========== Buttons 4K ========== */
.btn { border-radius: var(--radius-sm); padding: 10px 20px; font-weight: 600; transition: all 0.3s; }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); border: none; box-shadow: 0 4px 15px rgba(67,97,238,0.2); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(67,97,238,0.3); }
.btn-success { background: linear-gradient(135deg, #10b981, #059669); border: none; }
.btn-danger { background: linear-gradient(135deg, #ef4444, #dc2626); border: none; }
.btn-warning { background: linear-gradient(135deg, #f59e0b, #d97706); border: none; }

/* ========== Alerts 4K ========== */
.alert { border-radius: var(--radius-sm); border: none; padding: 16px 20px; box-shadow: var(--shadow-sm); }

/* ========== Modal 4K ========== */
.modal-content { border-radius: 20px; border: none; box-shadow: var(--shadow-xl); overflow: hidden; }
.modal-header { padding: 20px 24px; border-bottom: 1px solid var(--border); }
.modal-body { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); }

/* ========== Progress 4K ========== */
.progress { border-radius: 20px; background: #f1f5f9; height: 8px; }
.progress-bar { border-radius: 20px; }

/* ========== Mobile Responsive 412x915 ========== */
@media (max-width: 991.98px) {
    .app-container { display: block; }
    .sidebar { position: fixed; right: -92vw; top: 0; height: 100vh; z-index: 1000; width: 90vw; max-width: 400px; transition: right 0.3s cubic-bezier(0.4,0,0.2,1); }
    .sidebar.show { right: 0; box-shadow:-8px 0 50px rgba(0,0,0,0.5) !important; }
    .sidebar-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 999; display: none; }
    .sidebar-backdrop.show { display: block; }
    .main-content { margin-right: 0 !important; width: 100% !important; flex: none !important; min-width: 0 !important; }
    .topbar { padding: 0 10px; height:52px !important; }
    .content-wrapper { padding: 8px 8px !important; }
    .custom-card { padding:14px !important; border-radius:12px !important; }
    .stat-card .stat-icon { width:44px; height:44px; font-size:1.2rem; border-radius:10px !important; }
    .stat-info h3 { font-size:1.2rem !important; }
    .stat-info span { font-size:0.7rem; }
    .table thead th { padding:8px 6px; font-size:0.7rem; }
    .table tbody td { padding:8px 6px; font-size:0.78rem; }
    .btn { padding:6px 10px; font-size:0.8rem; }
    .mb-4 { margin-bottom:10px !important; }
    .row > [class*="col-"] { padding-left:4px; padding-right:4px; }
    h4 { font-size:1.1rem !important; }
    h5 { font-size:0.95rem !important; }
    .stat-card { padding:12px !important; }
    .stat-card .stat-info h3 { font-size:1.1rem !important; }
    .stat-card .stat-info span { font-size:0.68rem !important; }
    .card-title-container { flex-wrap: wrap; }
    .card-title-container > div { flex-wrap: wrap; }
    td .btn-group, td .btn-toolbar, td > .btn-group { flex-wrap: wrap; }
    td .btn-group .btn { padding:5px 8px; margin:2px; border-radius:6px !important; white-space: normal; }
    td .btn-group .btn i { margin-inline-end: 2px !important; }
    .table-responsive { -webkit-overflow-scrolling: touch; }
    .table-responsive { -webkit-overflow-scrolling: touch; }
    #subscribersTable .btn-group { flex-wrap: wrap; }
    #subscribersTable .btn-group .btn { padding:5px 8px; margin:2px; border-radius:6px !important; }
    #subscribersTable td.no-print { white-space: normal; }
    #subscribersTable td .badge { white-space: normal; }
    .card-title-container { margin-bottom:10px; padding-bottom:8px; }
}

@media (max-width: 575.98px) {
    .col-md-6 { width:100%; }
    .stat-card { padding:10px !important; }
    .stat-icon { width:38px; height:38px; font-size:1rem; }
    .stat-info h3 { font-size:1.1rem !important; }
    .btn-group-sm .btn { padding:4px 8px; font-size:0.7rem; }
    input.form-control, select.form-select { padding:8px 10px; font-size:0.85rem; }
}

/* ========== Sidebar Toggle ========== */
.sidebar-collapsed .sidebar { width: 0 !important; min-width: 0 !important; padding: 0 !important; overflow: hidden !important; opacity: 0; }
.sidebar-collapsed .main-content { margin-right: 0; }

/* ========== Print ========== */
@media print {
    .sidebar, .topbar, .btn, .no-print, form, .dropdown { display: none !important; }
    .main-content { margin-right: 0 !important; background-color: #fff !important; }
    .content-wrapper { padding: 0 !important; }
    .custom-card { border: none !important; box-shadow: none !important; padding: 12px !important; }
    .table-responsive { border: none !important; }
    .table th, .table td { border: 1px solid #ddd !important; }
}