app/static/css/style.css

/* Global styles */
body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: #ffffff;
    color: #1C1F23;
}

/* App Container */
.app-container {
    display: flex;
    min-height: 100vh;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
}

/* Sidebar styles */
.sidebar {
    width: 280px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-right: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 2px 0 20px rgba(0, 0, 0, 0.05);
    padding: 24px 0;
    flex-shrink: 0;
}

.sidebar-header {
    padding: 0 24px 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.sidebar-header h2 {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
    background: linear-gradient(120deg, #2196F3, #00BCD4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 0.5px;
}

.sidebar-nav {
    padding: 20px 0;
}

.nav-item {
    margin: 8px 16px;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.2s ease;
}

.nav-item:hover {
    transform: translateX(4px);
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 14px 16px;
    color: #1C1F23;
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-link:hover {
    background: linear-gradient(120deg, rgba(33, 150, 243, 0.1), rgba(0, 188, 212, 0.1));
}

.nav-item.active .nav-link {
    background: linear-gradient(120deg, #2196F3, #00BCD4);
    color: #fff;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.3);
}

.nav-icon {
    margin-right: 12px;
    font-size: 18px;
}

/* Main Content Wrapper */
.main-wrapper {
    flex: 1;
    padding: 24px;
    max-width: calc(100% - 280px);
}

/* Header styles */
.header {
    background: rgba(255, 255, 255, 0.95);
    padding: 24px;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.header h1 {
    margin: 0;
    background: linear-gradient(120deg, #2196F3, #00BCD4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 28px;
    text-align: center;
    letter-spacing: 0.5px;
}

/* Filter section styles */
.filter-section {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filter-group label {
    font-weight: 600;
    color: #1C1F23;
    margin-bottom: 4px;
}

.semi-select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    background-color: #fff;
    font-size: 14px;
    transition: border-color 0.2s;
}

.semi-select:hover {
    border-color: #0077FF;
}

.semi-select:focus {
    border-color: #0077FF;
    outline: none;
    box-shadow: 0 0 0 2px rgba(0,119,255,0.2);
}

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.semi-checkbox {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.semi-checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
    margin: 0;
}

.semi-checkbox span {
    font-size: 14px;
}

/* Table styles */
.table-container {
    background: rgba(255, 255, 255, 0.95);
    padding: 24px;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    overflow-x: auto;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.semi-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 14px;
}

/* Column Header Styles */
.column-header {
    position: relative;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    background: linear-gradient(120deg, rgba(33, 150, 243, 0.05), rgba(0, 188, 212, 0.05));
    font-weight: 600;
    color: #1C1F23;
    white-space: nowrap;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.header-content:hover {
    background: linear-gradient(120deg, rgba(33, 150, 243, 0.1), rgba(0, 188, 212, 0.1));
    border-bottom: 2px solid #2196F3;
}

.header-actions {
    display: flex;
    gap: 8px;
}

.sort-btn,
.filter-btn {
    background: none;
    border: none;
    padding: 6px;
    cursor: pointer;
    color: #666;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sort-btn:hover,
.filter-btn:hover {
    background: linear-gradient(120deg, #2196F3, #00BCD4);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.2);
}

/* Filter Dropdown Styles */
.filter-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 12px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
    z-index: 1000;
    min-width: 240px;
    backdrop-filter: blur(10px);
    transform-origin: top;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.filter-content {
    padding: 16px;
}

.filter-search {
    width: 90%;
    padding: 12px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    margin-bottom: 12px;
    font-size: 14px;
    background: rgba(255, 255, 255, 0.9);
    transition: all 0.3s ease;
}

.filter-search:focus {
    outline: none;
    border-color: #2196F3;
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.2);
}

.filter-options {
    max-height: 240px;
    overflow-y: auto;
    margin-bottom: 12px;
    padding: 4px;
}

.filter-options::-webkit-scrollbar {
    width: 8px;
}

.filter-options::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
}

.filter-options::-webkit-scrollbar-thumb {
    background: linear-gradient(120deg, #2196F3, #00BCD4);
    border-radius: 4px;
}

.filter-option {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.filter-option:hover {
    background: linear-gradient(120deg, rgba(33, 150, 243, 0.1), rgba(0, 188, 212, 0.1));
}

.filter-option input[type="checkbox"] {
    margin-right: 12px;
    width: 18px;
    height: 18px;
    border-radius: 4px;
    border: 2px solid #2196F3;
    transition: all 0.3s ease;
    position: relative;
    cursor: pointer;
}

.filter-option input[type="checkbox"]:checked {
    background: linear-gradient(120deg, #2196F3, #00BCD4);
    border-color: transparent;
}

.filter-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding-top: 12px;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.filter-actions button {
    padding: 10px 16px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.filter-actions button:first-child {
    background: linear-gradient(120deg, #2196F3, #00BCD4);
    color: #fff;
}

.filter-actions button:first-child:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.3);
}

.filter-actions button:last-child {
    background: rgba(0, 0, 0, 0.05);
    color: #1C1F23;
}

.filter-actions button:last-child:hover {
    background: rgba(0, 0, 0, 0.1);
}

/* Table Body Styles */
.semi-table td {
    padding: 16px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.semi-table tbody tr {
    transition: all 0.3s ease;
}

.semi-table tbody tr:hover {
    background: linear-gradient(120deg, rgba(33, 150, 243, 0.05), rgba(0, 188, 212, 0.05));
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

/* Links in table */
.semi-table a {
    color: #2196F3;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
}

.semi-table a:hover {
    color: #00BCD4;
}

.semi-table a::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    bottom: -2px;
    left: 0;
    background: linear-gradient(120deg, #2196F3, #00BCD4);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.semi-table a:hover::after {
    transform: scaleX(1);
}

/* Responsive design */
@media (max-width: 1024px) {
    .sidebar {
        width: 240px;
    }
    
    .main-wrapper {
        max-width: calc(100% - 240px);
        padding: 16px;
    }
}

@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid rgba(0, 0, 0, 0.1);
        padding: 16px 0;
    }
    
    .main-wrapper {
        max-width: 100%;
        padding: 16px;
    }

    .header {
        padding: 16px;
        margin-bottom: 16px;
    }

    .header h1 {
        font-size: 24px;
    }

    .table-container {
        padding: 16px;
        border-radius: 12px;
    }

    .header-content {
        padding: 12px;
    }

    .semi-table td,
    .semi-table th {
        padding: 12px;
        font-size: 13px;
    }

    .filter-dropdown {
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 90%;
        max-width: 320px;
        margin: 0 auto;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #121212;
        color: #ffffff;
    }

    .app-container {
        background: linear-gradient(135deg, #121212 0%, #1a1a1a 100%);
    }

    .sidebar,
    .header,
    .table-container {
        background: rgba(255, 255, 255, 0.05);
        border-color: rgba(255, 255, 255, 0.1);
    }

    .semi-table td {
        border-color: rgba(255, 255, 255, 0.1);
    }

    .filter-dropdown {
        background: rgba(18, 18, 18, 0.98);
    }

    .filter-search {
        background: rgba(255, 255, 255, 0.05);
        border-color: rgba(255, 255, 255, 0.1);
        color: #ffffff;
    }

    .filter-option:hover {
        background: rgba(255, 255, 255, 0.05);
    }
}