/* ==================== RESET & BASE ==================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background: var(--bg-page);
    line-height: 1.6;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-hover); }

img { max-width: 100%; height: auto; }

/* ==================== SIDEBAR ==================== */
.admin-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: linear-gradient(180deg, var(--sidebar-dark) 0%, var(--sidebar-mid) 100%);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform var(--transition-normal);
}

.sidebar-logo {
    padding: 20px 24px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-logo img {
    height: 36px;
    width: auto;
}

.sidebar-logo h2 {
    color: var(--color-primary);
    font-size: var(--font-size-lg);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 16px 12px 20px;
}

.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }

.sidebar-section-title {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 10px 12px 4px;
    font-weight: 600;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: var(--border-radius);
    color: #CBD5E1;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
    margin-top: 10px;
}

.sidebar-link:hover {
    background: var(--sidebar-hover);
    color: var(--color-primary);
}

.sidebar-link.active {
    background: var(--sidebar-active);
    color: var(--color-primary);
}

.sidebar-link svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    opacity: 0.7;
}

.sidebar-link.active svg { opacity: 1; }

.sidebar-separator {
    height: 1px;
    background: rgba(255,255,255,0.06);
    margin: 6px 0;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}

.sidebar-user span {
    color: #CBD5E1;
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.sidebar-logout-form { display: inline; }

.sidebar-logout {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: var(--font-size-xs);
    cursor: pointer;
    padding: 4px 0;
    transition: color var(--transition-fast);
}

.sidebar-logout:hover { color: var(--color-danger); }

/* ==================== TOPBAR ==================== */
.admin-topbar {
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    height: var(--topbar-height);
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    z-index: 90;
}

.topbar-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.topbar-right span {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-primary);
    padding: 4px;
}

/* ==================== MAIN CONTENT ==================== */
.admin-main {
    margin-left: var(--sidebar-width);
    padding-top: var(--topbar-height);
    min-height: 100vh;
}

.admin-content {
    padding: 24px;
    max-width: 1400px;
}

/* ==================== CARDS ==================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.stat-card-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 4px;
}

.stat-card-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
}

.stat-card-value.gold { color: var(--color-primary); }
.stat-card-value.green { color: var(--color-success); }
.stat-card-value.blue { color: var(--color-info); }

/* ==================== PAGE HEADER ==================== */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}

.page-header-info h2 {
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.page-header-info p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--text-white);
}
.btn-primary:hover { background: var(--color-primary-hover); color: var(--text-white); }

.btn-secondary {
    background: var(--bg-page);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover { background: var(--border-color); color: var(--text-primary); }

.btn-danger {
    background: var(--color-danger);
    color: var(--text-white);
}
.btn-danger:hover { opacity: 0.9; color: var(--text-white); }

.btn-sm {
    padding: 6px 12px;
    font-size: var(--font-size-xs);
}

/* ==================== FILTERS ==================== */
.filters-bar {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    padding: 16px;
    margin-bottom: 16px;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.filter-search {
    flex: 1;
    min-width: 200px;
    position: relative;
}

.filter-search svg {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    width: 16px;
    height: 16px;
}

.filter-search input {
    width: 100%;
    padding: 8px 12px 8px 36px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    background: var(--bg-input);
}

.filter-search input:focus { outline: none; border-color: var(--color-primary); }

.filter-select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    background: var(--bg-input);
    min-width: 140px;
}

.filter-select:focus { outline: none; border-color: var(--color-primary); }

.filter-btn {
    padding: 8px 16px;
    background: var(--color-primary);
    color: var(--text-white);
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
}

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

.filter-clear {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* ==================== TABLE ==================== */
.table-wrap {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    overflow: visible;
    box-shadow: var(--shadow-sm);
}

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

.table-wrap th {
    padding: 12px 16px;
    text-align: left;
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-page);
}

.table-wrap td {
    padding: 12px 16px;
    font-size: var(--font-size-sm);
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.table-wrap tr:last-child td { border-bottom: none; }
.table-wrap tr:hover td { background: rgba(0,0,0,0.01); }

.th-center, .td-center { text-align: center; }
.th-right, .td-right { text-align: right; }

/* ==================== STATUS BADGES ==================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.badge-active { background: #D1FAE5; color: #065F46; }
.badge-inactive { background: #FEE2E2; color: #991B1B; }
.badge-pending { background: #FEF3C7; color: #92400E; }
.badge-approved { background: #D1FAE5; color: #065F46; }
.badge-cancelled { background: #FEE2E2; color: #991B1B; }
.badge-refunded { background: #E0E7FF; color: #3730A3; }

/* ==================== ACTIONS DROPDOWN ==================== */
.actions-dropdown { position: relative; display: inline-block; }

.actions-btn {
    background: var(--bg-page);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: var(--border-radius);
    font-size: var(--font-size-xs);
    cursor: pointer;
    color: var(--text-secondary);
    font-weight: 500;
}

.actions-btn:hover { background: var(--border-color); }

.actions-menu {
    display: none;
    position: absolute;
    right: 0;
    bottom: 100%;
    margin-top: 4px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    min-width: 180px;
    z-index: 50;
    overflow: hidden;
}

.actions-menu.show { display: block; }

.action-item {
    display: block;
    width: 100%;
    padding: 8px 14px;
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    text-decoration: none;
}

.action-item:hover { background: var(--bg-page); color: var(--text-primary); }

.action-danger { color: var(--color-danger); }
.action-danger:hover { background: #FEF2F2; color: var(--color-danger); }

.action-divider { height: 1px; background: var(--border-color); margin: 4px 0; }

/* ==================== FORMS ==================== */
.form-card {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    margin-bottom: 20px;
}

.form-card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.form-card-header h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
}

.form-card-body {
    padding: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.form-field {
    margin-bottom: 16px;
}

.form-field label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.form-field .required { color: var(--color-danger); }

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    background: var(--bg-input);
    transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-textarea { resize: vertical; }

.form-help {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-top: 4px;
}

.form-error {
    font-size: var(--font-size-xs);
    color: var(--color-danger);
    margin-top: 4px;
}

.form-field.has-error .form-input,
.form-field.has-error .form-select,
.form-field.has-error .form-textarea {
    border-color: var(--color-danger);
}

.form-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px;
    background: var(--bg-page);
    border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
    border-top: 1px solid var(--border-color);
}

.form-image-preview {
    margin-bottom: 12px;
}

.form-image-preview img {
    max-width: 200px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

/* ==================== BACK BUTTON ==================== */
.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: 16px;
}

.back-btn:hover { color: var(--color-primary); }

/* ==================== MESSAGES ==================== */
.messages {
    margin-bottom: 16px;
}

.msg {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: 8px;
}

.msg-success { background: #D1FAE5; color: #065F46; border: 1px solid #A7F3D0; }
.msg-error { background: #FEE2E2; color: #991B1B; border: 1px solid #FECACA; }
.msg-warning { background: #FEF3C7; color: #92400E; border: 1px solid #FDE68A; }
.msg-info { background: #DBEAFE; color: #1E40AF; border: 1px solid #BFDBFE; }

/* ==================== PAGINATION ==================== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 20px;
}

.page-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 8px;
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    text-decoration: none;
}

.page-link:hover { background: var(--bg-page); color: var(--text-primary); }

.page-current {
    background: var(--color-primary);
    color: var(--text-white);
}

.page-current:hover { background: var(--color-primary); color: var(--text-white); }

/* ==================== EMPTY STATE ==================== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}

.empty-state svg { color: var(--text-muted); margin-bottom: 16px; }

.empty-state h3 {
    font-size: var(--font-size-lg);
    margin-bottom: 8px;
    color: var(--text-primary);
}

.empty-state p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* ==================== LOGIN ==================== */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--sidebar-dark) 0%, var(--sidebar-mid) 100%);
}

.login-card {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
}

.login-logo {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo h1 {
    font-size: var(--font-size-2xl);
    color: var(--color-primary);
    font-weight: 700;
}

.login-logo p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-top: 4px;
}

.login-field {
    margin-bottom: 20px;
}

.login-field label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: 6px;
}

.login-btn {
    width: 100%;
    padding: 12px;
    background: var(--color-primary);
    color: var(--text-white);
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.login-btn:hover { background: var(--color-primary-hover); }

/* ==================== MOBILE CARDS ==================== */
.mobile-cards { display: none; }

.mobile-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 16px;
    margin-bottom: 12px;
}

.mobile-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.mobile-card-info h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.mobile-card-info p {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.mobile-card-meta {
    display: flex;
    gap: 12px;
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.mobile-card-actions {
    display: flex;
    gap: 8px;
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
}

/* ==================== COPY LINK ==================== */
.copy-link {
    display: flex;
    align-items: center;
    gap: 8px;
}

.copy-link input {
    flex: 1;
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    background: var(--bg-page);
}

.copy-link button {
    padding: 6px 10px;
    background: var(--color-primary);
    color: var(--text-white);
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    cursor: pointer;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .admin-sidebar {
        transform: translateX(-100%);
    }

    body.sidebar-open .admin-sidebar {
        transform: translateX(0);
    }

    body.sidebar-open .sidebar-overlay {
        display: block;
    }

    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0,0,0,0.5);
        z-index: 99;
    }

    .admin-topbar {
        left: 0;
    }

    .admin-main {
        margin-left: 0;
    }

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

    .admin-content {
        padding: 16px;
    }

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

    .table-wrap { display: none; }
    .mobile-cards { display: block; }

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

    .filters-bar {
        flex-direction: column;
    }

    .filter-search { min-width: 100%; }

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

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}