/* ==========================================================================
   VPlug Admin Panel Stylesheet - Professional Redesign
   ========================================================================== */

/* --- 1. Root Variables & Global Resets --- */
:root {
    --admin-bg: #111827; /* Very Dark Blue/Gray */
    --sidebar-bg: #1F2937; /* Darker Gray */
    --card-bg: #1F2937;
    --header-bg: #1F2937;
    --text-main: #F9FAFB; /* Off-white */
    --text-muted: #9CA3AF; /* Muted Gray */
    --border-color: #374151; /* Darker border */
    --shadow-color: rgba(0, 0, 0, 0.25);
    --shadow: 0 4px 12px var(--shadow-color);
    
    --primary: #2563EB; /* Professional Blue */
    --primary-light: rgba(37, 99, 235, 0.1);
    --success: #10B981; /* Emerald Green */
    --success-light: rgba(16, 185, 129, 0.1);
    --danger: #EF4444; /* Red */
    --danger-light: rgba(239, 68, 68, 0.1);
    --warning: #F59E0B; /* Amber */
    --warning-light: rgba(245, 158, 11, 0.1);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--admin-bg);
    color: var(--text-main);
    -webkit-font-smoothing: antialiased;
    font-size: 14px;
}

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

/* --- 2. Sidebar --- */
.sidebar {
    width: 260px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: width 0.3s ease;
}
.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    height: 70px;
    border-bottom: 1px solid var(--border-color);
}
.logo { font-size: 1.5rem; font-weight: 700; color: #fff; }
.logo span { color: var(--primary); }

.sidebar-nav { flex-grow: 1; margin-top: 1rem; }
.sidebar-nav ul { list-style: none; }
.sidebar-nav a {
    display: flex;
    align-items: center;
    padding: 0.9rem 1.5rem;
    margin: 0.25rem 0.75rem;
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
}
.sidebar-nav a:hover {
    background-color: var(--primary-light);
    color: var(--primary);
}
.sidebar-nav li.active > a {
    background-color: var(--primary);
    color: #fff;
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
}
.sidebar-nav a i.fa-fw { margin-right: 1rem; width: 20px; text-align: center; font-size: 1rem; }

.sidebar-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
}
.sidebar-footer a {
    display: block; text-align: center; background-color: rgba(255,255,255,0.05);
    border-radius: 6px; padding: 0.75rem; text-decoration: none; color: var(--text-muted);
    font-weight: 500;
}
.sidebar-footer a:hover { background-color: rgba(255,255,255,0.1); color: #fff; }

/* --- 3. Main Content Area --- */
.main-content {
    flex-grow: 1;
    padding: 2rem;
    overflow-y: auto;
}
.main-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 2rem;
}
.main-header h1 { font-size: 1.8rem; font-weight: 600; }

.btn {
    padding: 0.6rem 1.2rem; border: none; border-radius: 8px;
    font-weight: 600; cursor: pointer; text-decoration: none;
    display: inline-flex; align-items: center; gap: 0.5rem;
    transition: var(--transition);
}
.btn-primary { background-color: var(--primary); color: #fff; }
.btn-primary:hover { background-color: #1D4ED8; box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3); }

/* --- 4. Reusable Components --- */
.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}
.stat-card {
    background-color: var(--card-bg); padding: 1.5rem;
    border-radius: 12px; border: 1px solid var(--border-color);
    transition: var(--transition);
}
.stat-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.stat-card .icon {
    font-size: 1.25rem; width: 48px; height: 48px;
    border-radius: 12px; display: flex; align-items: center; justify-content: center;
    float: right; color: #fff;
}
.stat-card h3 { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 0.5rem; text-transform: uppercase; font-weight: 500; }
.stat-card .value { font-size: 2.25rem; font-weight: 700; color: var(--text-main); }
.stat-card .note { font-size: 0.85rem; color: var(--text-muted); margin-top: 5px; }

.content-box {
    background-color: var(--card-bg); padding: 2rem;
    border-radius: 12px; border: 1px solid var(--border-color);
}

/* --- 5. Table Styles --- */
.table-container { overflow-x: auto; }
table { width: 100%; border-collapse: separate; border-spacing: 0; }
th, td { padding: 1rem; text-align: left; border-bottom: 1px solid var(--border-color); }
th {
    background-color: #111827;
    font-weight: 600; font-size: 0.8rem;
    text-transform: uppercase; color: var(--text-muted); letter-spacing: 0.5px;
}
td { color: var(--text-main); font-size: 0.9rem; vertical-align: middle; }
tbody tr { transition: background-color 0.2s ease; }
tbody tr:hover { background-color: #374151; }
tr:last-child td { border-bottom: none; }
td strong { color: #fff; font-weight: 500; }
.no-data-cell { text-align: center; padding: 2.5rem; color: var(--text-muted); }
.btn-action {
    padding: 6px 12px; border-radius: 6px; text-decoration: none;
    font-size: 0.85rem; border: none; cursor: pointer; transition: opacity 0.2s;
}
.btn-action:hover { opacity: 0.85; }
.btn-action.view { background-color: var(--primary); color: #fff; }
.btn-action.edit { background-color: var(--warning); color: #000; }
.btn-action.delete { background-color: var(--danger); color: #fff; }

/* --- 6. Form Styles --- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.form-group { margin-bottom: 1.5rem; }
.form-group.full-width { grid-column: 1 / -1; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 500; }
form select, form input[type="number"], form input[type="text"], form input[type="email"], form input[type="password"] {
    width: 100%; padding: 10px 12px;
    background-color: var(--admin-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: 'Poppins', sans-serif;
    font-size: 0.9rem;
    color: var(--text-main);
    transition: var(--transition);
}
form select:focus, form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}
.checkbox-group { display: flex; align-items: center; gap: 10px; }
.checkbox-group input { width: 1.1em; height: 1.1em; }
.checkbox-group label { margin-bottom: 0; }
form .btn { margin-top: 1rem; }

/* --- 7. Status Badges --- */
.status-badge {
    padding: 5px 12px; border-radius: 20px;
    font-size: 0.75rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.5px;
    display: inline-block;
}
.status-open, .status-pending, .status-active { background-color: var(--warning-light); color: var(--warning); }
.status-answered, .status-completed { background-color: var(--success-light); color: var(--success); }
.status-closed, .status-cancelled, .status-failed { background-color: var(--danger-light); color: var(--danger); }
.status-admin { background-color: var(--primary-light); color: var(--primary); }
.status-user { background-color: rgba(156, 163, 175, 0.2); color: #9CA3AF; }

/* --- 8. Filter Navigation --- */
.filter-nav {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    background-color: var(--card-bg);
    padding: 0.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}
.filter-nav a {
    color: var(--text-muted);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 500;
    transition: var(--transition);
}
.filter-nav a:hover {
    background-color: var(--border-color);
    color: var(--text-main);
}
.filter-nav a.active {
    background-color: var(--primary);
    color: #fff;
    box-shadow: 0 2px 5px rgba(37, 99, 235, 0.3);
}

/* --- 9. Alerts --- */
.alert {
    padding: 1rem;
    margin-bottom: 1.5rem;
    border-radius: 8px;
    border: 1px solid transparent;
    font-weight: 500;
}
.alert.success { background-color: var(--success-light); border-color: var(--success); color: var(--success); }
.alert.danger { background-color: var(--danger-light); border-color: var(--danger); color: var(--danger); }
/* --- 8. Filter Navigation & Table Controls (Responsive) --- */

.filter-nav {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    background-color: var(--card-bg);
    padding: 0.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    flex-wrap: wrap; /* Allow filters to wrap on small screens */
}
.filter-nav a {
    color: var(--text-muted);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap; /* Prevent button text from breaking */
}
.filter-nav a:hover {
    background-color: var(--border-color);
    color: var(--text-main);
}
.filter-nav a.active {
    background-color: var(--primary);
    color: #fff;
    box-shadow: 0 2px 5px rgba(37, 99, 235, 0.3);
}

.table-controls {
    display: flex;
    justify-content: space-between; /* Pushes items apart */
    align-items: center; /* Vertically aligns them */
    flex-wrap: wrap; /* Allows wrapping */
    gap: 1rem; /* Space between items */
    padding-bottom: 1.5rem;
}

.search-container {
    position: relative;
    display: flex;
    align-items: center;
    flex-grow: 1; /* Allows search to take available space */
    min-width: 250px; /* Prevents it from getting too small */
}
.search-container i {
    position: absolute;
    left: 15px;
    color: var(--text-muted);
}
.search-container input {
    width: 100%;
    max-width: 450px; /* Limit max width */
    padding: 10px 15px 10px 40px;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--text-main);
}
.search-container input:focus {
    outline: none;
    border-color: var(--primary);
}

.bulk-actions {
    display: flex;
    gap: 0.75rem;
    flex-shrink: 0; /* Prevents buttons from shrinking */
}

/* --- Responsive Media Query for small screens --- */
/* This rule applies when the screen width is 768px or less */
@media (max-width: 768px) {
    .table-controls {
        flex-direction: column; /* Stack items vertically */
        align-items: stretch;   /* Make them full width of the container */
    }
    
    .search-container {
        width: 100%; /* Ensure search takes full width */
    }

    .search-container input {
        max-width: 100%; /* Allow input to fill its container */
    }

    .bulk-actions {
        justify-content: flex-start; /* Align buttons to the left */
    }
}

/* Transaction Type Badges */
.badge {
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.8em;
    color: #fff;
    text-transform: capitalize;
}
.badge.deposit { background-color: #27ae60; } /* Green */
.badge.purchase { background-color: #c0392b; } /* Red */
.badge.refund { background-color: #2980b9; }   /* Blue */
.badge.admin_adjustment { background-color: #f39c12; } /* Orange */

/* Pagination Styles */
.pagination {
    margin-top: 20px;
    text-align: center;
}
.pagination .btn {
    display: inline-block;
    padding: 8px 16px;
    background-color: #3498db;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    margin: 0 5px;
}
.pagination .btn:hover {
    background-color: #2980b9;
}
.pagination span {
    display: inline-block;
    padding: 8px 16px;
    color: #555;
    vertical-align: middle;
}