:root {
    /* Light Theme - White */
    --bg-primary: #ffffff;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f8f9fa;
    --bg-hover: #f0f0f0;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --text-inverse: #1a1a1a;
    --border-color: #e0e0e0;
    --shadow: rgba(0, 0, 0, 0.1);
    --modal-bg: rgba(0, 0, 0, 0.5);
    --card-bg: #ffffff;
    --input-bg: #ffffff;
    --stat-bg: #f0f0f0;
    --header-bg: #f8f9fa;
    --scrollbar-track: #f1f1f1;
    --scrollbar-thumb: #667eea;
    --primary-accent: #667eea;
    --primary-accent-hover: #5568d3;
}

[data-theme="dark"] {
    /* Dark Theme */
    --bg-primary: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    --bg-secondary: #0f0f1e;
    --bg-tertiary: #1a1a2e;
    --bg-hover: #252538;
    --text-primary: #e0e0e0;
    --text-secondary: #b0b0b0;
    --text-inverse: #ffffff;
    --border-color: #333344;
    --shadow: rgba(0, 0, 0, 0.6);
    --modal-bg: rgba(0, 0, 0, 0.8);
    --card-bg: #1a1a2e;
    --input-bg: #252538;
    --stat-bg: rgba(255, 255, 255, 0.1);
    --scrollbar-track: #1a1a2e;
    --scrollbar-thumb: #667eea;
    --primary-accent: #667eea;
    --primary-accent-hover: #764ba2;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
    background: #f5f5f5;
    min-height: 100vh;
    padding: 20px;
    color: var(--text-primary);
    transition: background 0.3s ease, color 0.3s ease;
}

[data-theme="dark"] body {
    background: var(--bg-primary);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    background: var(--bg-secondary);
    border-radius: 20px;
    box-shadow: 0 20px 60px var(--shadow);
    overflow: hidden;
    transition: background 0.3s ease, box-shadow 0.3s ease;
}

/* Header */
.header {
    background: var(--header-bg);
    color: var(--text-inverse);
    padding: 40px;
    text-align: center;
    position: relative;
    border-bottom: 1px solid var(--border-color);
}

[data-theme="light"] .header {
    background: #f8f9fa;
    border-bottom: 1px solid var(--border-color);
}

[data-theme="dark"] .header {
    background: var(--bg-primary);
    border-bottom: none;
}

.theme-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px 20px;
    border-radius: 25px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.theme-toggle:hover {
    background: var(--bg-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] .theme-toggle {
    background: var(--stat-bg);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: var(--text-inverse);
    backdrop-filter: blur(10px);
}

[data-theme="dark"] .theme-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
}

.header h1 {
    font-size: 42px;
    margin-bottom: 10px;
    font-weight: 700;
    color: var(--text-primary);
}

[data-theme="dark"] .header h1 {
    color: var(--text-inverse);
}

.subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

[data-theme="dark"] .subtitle {
    opacity: 0.9;
    color: rgba(255, 255, 255, 0.9);
}

.stats-bar {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--stat-bg);
    padding: 20px 30px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

[data-theme="dark"] .stat {
    backdrop-filter: blur(10px);
    border: none;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

[data-theme="dark"] .stat-label {
    opacity: 0.9;
    color: rgba(255, 255, 255, 0.9);
}

/* Filters Section */
.filters-section {
    padding: 30px 40px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    transition: background 0.3s ease, border-color 0.3s ease;
}

.search-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

#search-input {
    flex: 1;
    padding: 15px 20px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: var(--input-bg);
    color: var(--text-primary);
}

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

#search-btn {
    padding: 15px 30px;
    background: var(--primary-accent);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

#search-btn:hover {
    background: var(--primary-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.filter-controls {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.filter-select {
    padding: 12px 20px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 14px;
    background: var(--input-bg);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-select:hover {
    border-color: var(--primary-accent);
}

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

.reset-btn {
    padding: 12px 25px;
    background: #f44336;
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.reset-btn:hover {
    background: #d32f2f;
    transform: translateY(-2px);
}

/* Results Info */
.results-info {
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    transition: background 0.3s ease, border-color 0.3s ease;
}

#results-count {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.export-btn {
    padding: 10px 20px;
    background: #4caf50;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.export-btn:hover {
    background: #45a049;
    transform: translateY(-2px);
}

/* Table */
.table-container {
    overflow-x: auto;
    padding: 0;
}

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

thead {
    background: var(--header-bg);
    color: var(--text-primary);
    position: sticky;
    top: 0;
    z-index: 10;
    border-bottom: 2px solid var(--border-color);
}

[data-theme="dark"] thead {
    background: var(--bg-primary);
    color: var(--text-inverse);
    border-bottom: none;
}

th {
    padding: 18px 20px;
    text-align: left;
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    user-select: none;
}

th:hover {
    background: var(--bg-hover);
}

[data-theme="dark"] th:hover {
    background: rgba(255, 255, 255, 0.1);
}

tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: all 0.2s ease;
    background: var(--bg-secondary);
}

tbody tr:hover {
    background: var(--bg-hover);
}

td {
    padding: 18px 20px;
    font-size: 14px;
    color: var(--text-primary);
}

/* Status Badges */
.status-badge {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-active {
    background: #e8f5e9;
    color: #2e7d32;
}

.status-acquired {
    background: #e3f2fd;
    color: #1565c0;
}

.status-failed {
    background: #ffebee;
    color: #c62828;
}

.status-pivoted {
    background: #fff3e0;
    color: #ef6c00;
}

/* View Details Button */
.view-details-btn {
    padding: 8px 16px;
    background: var(--primary-accent);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.view-details-btn:hover {
    background: var(--primary-accent-hover);
    transform: translateY(-1px);
}

/* Loading */
.loading {
    text-align: center;
    padding: 60px 20px;
    font-size: 18px;
    color: var(--text-secondary);
}

.no-results {
    text-align: center;
    padding: 60px 20px;
    font-size: 18px;
    color: var(--text-secondary);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: var(--modal-bg);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background-color: var(--bg-secondary);
    margin: 5% auto;
    padding: 40px;
    border-radius: 20px;
    width: 90%;
    max-width: 700px;
    box-shadow: 0 20px 60px var(--shadow);
    animation: slideIn 0.3s ease;
    color: var(--text-primary);
    transition: background 0.3s ease, color 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.close {
    color: var(--text-secondary);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
    transition: color 0.3s ease;
}

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

#modal-body {
    margin-top: 20px;
}

.modal-section {
    margin-bottom: 25px;
}

.modal-section h3 {
    color: var(--primary-accent);
    margin-bottom: 10px;
    font-size: 18px;
}

.modal-section p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 15px;
}

.founder-list {
    list-style: none;
    padding: 0;
}

.founder-list li {
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.founder-list li:last-child {
    border-bottom: none;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header h1 {
        font-size: 28px;
    }

    .theme-toggle {
        top: 10px;
        right: 10px;
        padding: 8px 16px;
        font-size: 14px;
    }

    .theme-toggle span:last-child {
        display: none;
    }

    .stats-bar {
        gap: 20px;
    }

    .stat {
        padding: 15px 20px;
    }

    .stat-value {
        font-size: 24px;
    }

    .filters-section {
        padding: 20px;
    }

    .filter-controls {
        flex-direction: column;
    }

    .filter-select {
        width: 100%;
    }

    table {
        font-size: 12px;
    }

    th, td {
        padding: 12px 10px;
    }

    .modal-content {
        width: 95%;
        padding: 20px;
        margin: 10% auto;
    }
}

/* Animations */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Scrollbar Styling */
.table-container::-webkit-scrollbar {
    height: 8px;
}

.table-container::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}

.table-container::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 4px;
}

.table-container::-webkit-scrollbar-thumb:hover {
    background: var(--primary-accent-hover);
}

/* API Source Badge */
.api-source {
    margin-top: 20px;
    padding: 10px 20px;
    background: var(--stat-bg);
    border-radius: 8px;
    text-align: center;
    border: 1px solid var(--border-color);
}

.api-source p {
    margin: 0;
    font-size: 13px;
    color: var(--text-secondary);
}

.api-source a {
    color: var(--primary-accent);
    text-decoration: underline;
    font-weight: 600;
}

[data-theme="dark"] .api-source {
    background: rgba(255, 255, 255, 0.15);
    border: none;
}

[data-theme="dark"] .api-source p {
    color: rgba(255, 255, 255, 0.95);
}

[data-theme="dark"] .api-source a {
    color: white;
}

/* View Controls */
.view-controls {
    display: flex;
    gap: 10px;
    align-items: center;
}

.view-btn {
    padding: 10px 20px;
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-primary);
}

.view-btn:hover {
    background: var(--bg-hover);
}

.view-btn.active {
    background: var(--primary-accent);
    color: var(--text-inverse);
    border-color: var(--primary-accent);
}

[data-theme="light"] .view-btn.active {
    color: #ffffff;
}

[data-theme="dark"] .view-btn.active {
    background: var(--bg-primary);
    color: var(--text-inverse);
}

.refresh-btn {
    padding: 12px 25px;
    background: #4caf50;
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.refresh-btn:hover {
    background: #45a049;
    transform: translateY(-2px);
}

/* Grid View */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
    padding: 20px 40px;
}

.startup-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.startup-card:hover {
    border-color: var(--primary-accent);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.2);
    transform: translateY(-4px);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.card-logo {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    object-fit: cover;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    flex-shrink: 0;
}

.modal-logo {
    width: 64px;
    height: 64px;
    border-radius: 12px;
    object-fit: cover;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    flex-shrink: 0;
}

.card-logo-placeholder {
    width: 48px;
    height: 48px;
    background: var(--primary-accent);
    color: white;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 16px;
    flex-shrink: 0;
    border: none;
}

.modal-logo-placeholder {
    width: 64px;
    height: 64px;
    background: var(--primary-accent);
    color: white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 20px;
    flex-shrink: 0;
    border: none;
}

.card-title h3 {
    margin: 0 0 4px 0;
    font-size: 18px;
    color: var(--text-primary);
}

.card-batch {
    font-size: 12px;
    color: var(--primary-accent);
    font-weight: 600;
}

.card-description {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.card-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.card-tag {
    font-size: 11px;
    padding: 4px 10px;
    background: var(--bg-tertiary);
    border-radius: 12px;
    color: var(--text-secondary);
    font-weight: 600;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    padding: 30px;
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border-color);
    transition: background 0.3s ease, border-color 0.3s ease;
}

.page-btn {
    padding: 10px 20px;
    background: var(--primary-accent);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.page-btn:hover:not(:disabled) {
    background: var(--primary-accent-hover);
    transform: translateY(-2px);
}

.page-btn:disabled {
    background: #cbd5e1;
    cursor: not-allowed;
    opacity: 0.5;
}

#page-info {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Loading Spinner */
.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(102, 126, 234, 0.2);
    border-top-color: #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-sub {
    font-size: 14px;
    color: #999;
    margin-top: 10px;
}