/* admin.css */
.security-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #f3f4f6;
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    transition: opacity 0.3s ease;
}

.security-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

/* Header & Filters */
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 20px;
}

.time-filters {
    display: flex;
    background: white;
    padding: 4px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.filter-btn {
    background: transparent;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    color: #4b5563;
    cursor: pointer;
    transition: all 0.2s;
}

.filter-btn:hover {
    background: #f3f4f6;
}

.filter-btn.active {
    background: var(--primary);
    color: white;
}

/* KPI Grid */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.kpi-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.kpi-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.kpi-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.kpi-info h3 {
    margin: 0;
    font-size: 0.9rem;
    color: #6b7280;
    font-weight: 500;
}

.kpi-info p {
    margin: 5px 0 0 0;
    font-size: 1.8rem;
    font-weight: 700;
    color: #111827;
}

/* Charts */
.charts-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

.chart-card {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.chart-card h3 {
    margin-top: 0;
    color: #111827;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.chart-container {
    position: relative;
    height: 300px;
    width: 100%;
}

/* Bottom Grid */
.bottom-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
}

.activity-feed {
    max-height: 500px;
    overflow-y: auto;
    padding-right: 10px;
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 15px 0;
    border-bottom: 1px solid #f3f4f6;
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.activity-content {
    flex: 1;
}

.activity-title {
    margin: 0;
    font-size: 0.9rem;
    color: #111827;
}

.activity-title strong {
    font-weight: 600;
}

.activity-time {
    margin: 4px 0 0 0;
    font-size: 0.8rem;
    color: #6b7280;
}

/* Table styles */
.admin-table th {
    background: #f9fafb;
    color: #374151;
    font-weight: 600;
    border-bottom: 1px solid #e5e7eb;
}

.admin-table td {
    padding: 15px;
    border-bottom: 1px solid #e5e7eb;
    color: #4b5563;
    vertical-align: middle;
}

.admin-table tr:last-child td {
    border-bottom: none;
}

.admin-table tr:hover {
    background-color: #f9fafb;
}

.admin-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid #e5e7eb;
}

/* Scrollbar styling for containers */
.table-responsive::-webkit-scrollbar,
.activity-feed::-webkit-scrollbar {
    width: 6px;
}
.table-responsive::-webkit-scrollbar-track,
.activity-feed::-webkit-scrollbar-track {
    background: #f1f1f1; 
}
.table-responsive::-webkit-scrollbar-thumb,
.activity-feed::-webkit-scrollbar-thumb {
    background: #c1c1c1; 
    border-radius: 10px;
}

@media (max-width: 1024px) {
    .charts-grid, .bottom-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .admin-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* Admin Search and Modal Styles */
/* ต้องระบุ input[type="text"] ร่วมด้วย ไม่งั้นกฎ input[type="text"] ใน style.css
   (ซึ่ง specificity สูงกว่า class เปล่าๆ) จะชนะ ทำให้ช่องข้อความในหน้าหลังบ้าน
   สูงกว่าช่องอีเมลและ select ที่อยู่แถวเดียวกันจนดูเบี้ยว */
.admin-search-input,
input[type="text"].admin-search-input,
input[type="email"].admin-search-input,
select.admin-search-input {
    padding: 10px 15px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    font-size: 0.9rem;
    font-family: inherit;
    width: 250px;
    background: white;
    color: #111827;
    outline: none;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.admin-search-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.admin-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.admin-modal.hidden {
    opacity: 0;
    pointer-events: none;
}

.admin-modal-content {
    background: white;
    width: 90%;
    max-width: 900px;
    border-radius: 12px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transform: translateY(0);
    transition: transform 0.3s ease;
}

.admin-modal.hidden .admin-modal-content {
    transform: translateY(20px);
}

.admin-modal-header {
    padding: 20px;
    border-bottom: 1px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f9fafb;
}

.close-modal-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #6b7280;
    transition: color 0.2s;
}

.close-modal-btn:hover {
    color: #ef4444;
}

.admin-modal-body {
    padding: 20px;
}