/* Pathway Finder Styles */
.pathway-finder {
    padding: 2rem 0;
    min-height: calc(100vh - 200px);
}

.pathway-finder .page-header {
    text-align: center;
    margin-bottom: 3rem;
}

.pathway-finder .page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pathway-finder .page-header p {
    font-size: 1.2rem;
    color: var(--gray-text);
    max-width: 600px;
    margin: 0 auto;
}

/* Search Section */
.search-section {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--glass-shadow);
}

.search-controls {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.search-input-group {
    position: relative;
    flex: 1;
    min-width: 300px;
}

.search-input-group i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-light);
    font-size: 1.1rem;
}

.search-input-group input {
    width: 100%;
    padding: 0.75rem 0.75rem 0.75rem 2.5rem;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--light-text);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.search-input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(58, 134, 255, 0.2);
}

.search-controls select {
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--light-text);
    min-width: 150px;
    transition: all 0.3s ease;
}

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

/* Results Section */
.results-section {
    margin-top: 2rem;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.results-header h2 {
    color: var(--light-text);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.results-count {
    color: var(--gray-text);
    font-size: 1.1rem;
}

/* Pathways Grid */
.pathways-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.pathway-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--glass-shadow);
    transition: all 0.4s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.pathway-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.03), transparent);
    transition: left 0.6s ease;
}

.pathway-card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3),
                inset 0 1px 0 rgba(255, 255, 255, 0.1),
                0 0 20px rgba(58, 134, 255, 0.1);
    border-color: rgba(58, 134, 255, 0.3);
}

.pathway-card:hover::before {
    left: 100%;
}

.pathway-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.pathway-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--light-text);
    margin: 0;
    flex: 1;
}

.pathway-category {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
    white-space: nowrap;
}

.pathway-equation {
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    color: var(--light-text);
    background: rgba(0, 0, 0, 0.2);
    padding: 0.75rem;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    margin-bottom: 1rem;
    word-break: break-all;
}

.pathway-details {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.pathway-meta {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

.difficulty-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
}

.difficulty-beginner {
    background: #d4edda;
    color: var(--success-color);
}

.difficulty-intermediate {
    background: #fff3cd;
    color: var(--warning-color);
}

.difficulty-advanced {
    background: #f8d7da;
    color: var(--danger-color);
}

.yield-info {
    color: var(--gray-text);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.pagination-btn {
    padding: 0.5rem 1rem;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--light-text);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.pagination-btn:hover,
.pagination-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* No Results */
.no-results {
    text-align: center;
    padding: 4rem 2rem;
}

.no-results-content i {
    font-size: 4rem;
    color: var(--gray-light);
    margin-bottom: 1rem;
    display: block;
}

.no-results-content h3 {
    color: var(--light-text);
    margin-bottom: 1rem;
}

.no-results-content p {
    color: var(--gray-text);
    margin-bottom: 2rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
}

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

.modal-content {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--glass-border);
    animation: slideUp 0.3s ease;
}

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

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--glass-border);
}

.modal-header h3 {
    margin: 0;
    color: var(--light-text);
    font-size: 1.5rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--gray-text);
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.modal-close:hover {
    background: rgba(208, 0, 0, 0.1);
    color: var(--danger-color);
    transform: rotate(90deg);
}

.modal-body {
    padding: 2rem;
    text-align: center;
}

.modal-body p {
    color: var(--light-text);
    font-size: 1.1rem;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.modal-footer {
    display: flex;
    gap: 1rem;
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--glass-border);
    justify-content: flex-end;
}

.modal-footer .btn {
    min-width: 120px;
}

/* Reaction Detail Modal */
.modal.large .modal-content {
    max-width: 900px;
    width: 95%;
}

.reaction-detail {
    max-height: 70vh;
    overflow-y: auto;
}

.reaction-overview {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--glass-border);
}

.reaction-overview h3 {
    font-size: 1.8rem;
    color: var(--light-text);
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.reaction-equation-large {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.reactants,
.products {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.molecule {
    background: rgba(58, 134, 255, 0.1);
    border: 1px solid rgba(58, 134, 255, 0.3);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    color: var(--light-text);
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
}

.arrow {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: bold;
}

.reaction-meta {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.reaction-meta .category {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.reaction-sections {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.detail-section {
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--glass-border);
}

.detail-section h4 {
    color: var(--light-text);
    margin: 0 0 1rem 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.2rem;
}

.reagents-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.reagent-tag {
    background: rgba(255, 193, 7, 0.1);
    border: 1px solid rgba(255, 193, 7, 0.3);
    color: var(--warning-color);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.9rem;
}

.conditions-grid,
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.condition,
.metric {
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    text-align: center;
}

.metric-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.metric-label {
    color: var(--gray-text);
    font-size: 0.9rem;
}

.mechanism-steps {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.mechanism-step {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    background: rgba(255, 255, 255, 0.03);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
}

.step-number {
    background: var(--primary-color);
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.step-content {
    flex: 1;
    color: var(--light-text);
    line-height: 1.6;
    white-space: pre-wrap;
}

.alternate-pathways {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.pathway-item {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    padding: 1rem;
    border: 1px solid var(--glass-border);
}

.pathway-item h5 {
    color: var(--light-text);
    margin: 0 0 1rem 0;
    font-size: 1.1rem;
}

.pathway-method,
.pathway-reagents,
.pathway-advantages,
.pathway-disadvantages {
    margin-bottom: 0.75rem;
    color: var(--light-text);
    line-height: 1.5;
}

.pathway-method strong,
.pathway-reagents strong,
.pathway-advantages strong,
.pathway-disadvantages strong {
    color: var(--primary-color);
    margin-right: 0.5rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .pathway-finder .page-header h1 {
        font-size: 2rem;
    }

    .search-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .search-input-group {
        min-width: auto;
    }

    .pathways-grid {
        grid-template-columns: 1fr;
    }

    .pathway-card {
        padding: 1rem;
    }

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

    .reaction-equation-large {
        flex-direction: column;
        gap: 0.5rem;
    }

    .reactants,
    .products {
        justify-content: center;
    }

    .arrow {
        transform: rotate(90deg);
    }

    .reaction-meta {
        flex-direction: column;
        gap: 0.5rem;
    }

    .conditions-grid,
    .metrics-grid {
        grid-template-columns: 1fr;
    }

    .mechanism-step {
        flex-direction: column;
        gap: 0.5rem;
    }

    .step-number {
        align-self: flex-start;
    }
}