:root {
    --bg-primary: #f5f7fa;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --text-muted: #95a5a6;
    --accent: #667eea;
    --accent-light: #764ba2;
    --border-color: #e1e8ed;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.12);
    --transition: all 0.3s ease;
}

.mobile-header {
    background: var(--bg-secondary);
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    display: none;
}

.mobile-header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.mobile-header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.hamburger-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
    padding: 0.25rem;
    transition: var(--transition);
}

.hamburger-btn:active {
    transform: scale(0.95);
}

.mobile-logo {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mobile-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
    box-shadow: var(--shadow);
}

.drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 998;
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.drawer-overlay.active {
    display: block;
    opacity: 1;
}

.sidebar-drawer {
    position: fixed;
    top: 0;
    left: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-secondary);
    box-shadow: 2px 0 20px rgba(0,0,0,0.15);
    z-index: 999;
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    display: none;
}

.sidebar-drawer.active {
    left: 0;
}

.drawer-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-primary);
}

.drawer-header h3 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.drawer-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.25rem;
    transition: var(--transition);
}

.drawer-close:hover {
    color: var(--text-primary);
}

.drawer-close:active {
    transform: scale(0.95);
}

.drawer-menu {
    padding: 0.5rem 0;
}

.drawer-section-title {
    padding: 1rem 1.5rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.drawer-menu-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.875rem 1.5rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
    position: relative;
}

.drawer-menu-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    transform: scaleY(0);
    transition: transform 0.2s ease;
}

.drawer-menu-item:hover,
.drawer-menu-item.active {
    background: var(--bg-primary);
    color: var(--accent);
}

.drawer-menu-item.active::before {
    transform: scaleY(1);
}

.drawer-menu-item i {
    width: 24px;
    text-align: center;
    font-size: 1.1rem;
}

.drawer-footer {
    padding: 1rem 0;
    border-top: 1px solid var(--border-color);
    margin-top: 1rem;
}

.stats-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.stat-card:active {
    transform: scale(0.98);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.stat-number {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    word-break: break-all;
    line-height: 1.2;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.search-container {
    position: relative;
    margin-bottom: 1.5rem;
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1rem;
    z-index: 1;
}

.search-input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-card);
    font-size: 1rem;
    color: var(--text-primary);
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.search-input::placeholder {
    color: var(--text-muted);
}

.plugins-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.plugin-card {
    background: var(--bg-card);
    border-radius: 16px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

.plugin-card:active {
    transform: scale(0.98);
}

.plugin-header {
    padding: 1.25rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.plugin-header:active {
    background: var(--bg-primary);
}

.plugin-left {
    flex: 1;
    min-width: 0;
}

.plugin-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.plugin-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.plugin-type {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    color: white;
    padding: 0.5rem 0.875rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.plugin-expand {
    font-size: 1.25rem;
    color: var(--text-muted);
    transition: transform 0.3s ease;
}

.plugin-expand.expanded {
    transform: rotate(180deg);
}

.plugin-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.plugin-content.expanded {
    max-height: 2000px;
}

.plugin-details {
    padding: 1.25rem;
    border-top: 1px solid var(--border-color);
    background: var(--bg-primary);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input,
.form-group select {
    padding: 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-card);
    font-size: 1rem;
    color: var(--text-primary);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.btn {
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    color: white;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.4);
}

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

.loading {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.loading i {
    font-size: 1.25rem;
}

.section h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.section h2 i {
    font-size: 1.75rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.redeem-section,
.setting-card,
.admin-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

.redeem-section h3,
.setting-card h3,
.admin-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

@media (max-width: 768px) {
    .navbar,
    .sidebar {
        display: none !important;
    }
    
    .mobile-header,
    .sidebar-drawer {
        display: block;
    }
    
    .dashboard-container {
        display: block;
        min-height: calc(100vh - 73px);
    }
    
    .main-content {
        max-width: 100vw;
        padding: 1.25rem;
    }
    
    .stats-cards {
        grid-template-columns: 1fr;
    }
    
    .section h2 {
        font-size: 1.375rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
}

@media (min-width: 769px) {
    .mobile-header,
    .sidebar-drawer,
    .drawer-overlay {
        display: none !important;
    }
    
    .stats-cards {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 1.25rem;
    }
}

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}