/* Vocabulary Page Specific Styles */

/* Vocabulary Hero */
.vocab-hero {
    padding-top: 100px;
    padding-bottom: 60px;
}

.vocab-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: rgba(110, 86, 207, 0.1);
    padding: 1.5rem 2.5rem;
    border-radius: 16px;
    border: 1px solid rgba(110, 86, 207, 0.2);
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    background-color: rgba(110, 86, 207, 0.15);
    box-shadow: 0 10px 30px rgba(110, 86, 207, 0.3);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, #6e56cf 0%, #4338ca 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Search and Controls */
.vocab-controls {
    padding: 2rem 0;
    background-color: var(--bg-darker);
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.search-container {
    position: relative;
    max-width: 600px;
    margin: 0 auto 2rem;
}

.search-icon {
    position: absolute;
    left: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--accent-primary);
    font-size: 1.2rem;
}

.search-input {
    width: 100%;
    padding: 1rem 3.5rem 1rem 3.5rem;
    background-color: var(--bg-card);
    border: 2px solid rgba(110, 86, 207, 0.3);
    border-radius: 50px;
    color: var(--text-primary);
    font-size: 1.1rem;
    font-family: 'Outfit', sans-serif;
    transition: all 0.3s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 4px rgba(110, 86, 207, 0.2);
}

.clear-search {
    position: absolute;
    right: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0.5rem;
}

.clear-search:hover {
    color: var(--accent-primary);
    transform: translateY(-50%) scale(1.2);
}

/* Category Filters */
.category-filters {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.category-btn {
    padding: 0.75rem 1.5rem;
    background-color: var(--bg-card);
    border: 2px solid transparent;
    border-radius: 50px;
    color: var(--text-secondary);
    font-family: 'Outfit', sans-serif;
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.category-btn:hover {
    background-color: rgba(110, 86, 207, 0.1);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.category-btn.active {
    background: linear-gradient(135deg, #6e56cf 0%, #4338ca 100%);
    border-color: var(--accent-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(110, 86, 207, 0.4);
}

.category-btn i {
    font-size: 1rem;
}

/* Results Info */
.results-info {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

#results-count {
    color: var(--accent-primary);
    font-weight: 600;
}

/* Vocabulary Grid */
.vocab-content {
    padding: 3rem 0;
}

.vocab-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

/* Vocabulary Card */
.vocab-card {
    background-color: var(--bg-card);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(110, 86, 207, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    opacity: 0;
    animation: fadeInUp 0.5s ease forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.vocab-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 35px rgba(110, 86, 207, 0.3);
    border-color: var(--accent-primary);
}

.vocab-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
}

/* Category-specific colors */
.vocab-card[data-category="core"]::before {
    background: linear-gradient(90deg, #6E56CF, #8A70FF);
}

.vocab-card[data-category="llm-concepts"]::before {
    background: linear-gradient(90deg, #4338CA, #6366F1);
}

.vocab-card[data-category="training"]::before {
    background: linear-gradient(90deg, #10B981, #34D399);
}

.vocab-card[data-category="enhancement"]::before {
    background: linear-gradient(90deg, #F59E0B, #FBBF24);
}

.vocab-card[data-category="advanced"]::before {
    background: linear-gradient(90deg, #EF4444, #F87171);
}

.vocab-card[data-category="architecture"]::before {
    background: linear-gradient(90deg, #06B6D4, #22D3EE);
}

.vocab-card-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}

.vocab-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
    background: linear-gradient(135deg, rgba(110, 86, 207, 0.2), rgba(67, 56, 202, 0.2));
    transition: all 0.3s ease;
}

.vocab-card:hover .vocab-icon {
    transform: scale(1.1) rotate(5deg);
    background: linear-gradient(135deg, rgba(110, 86, 207, 0.3), rgba(67, 56, 202, 0.3));
}

.vocab-title-section {
    flex: 1;
}

.vocab-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.vocab-category-tag {
    font-size: 0.75rem;
    color: var(--accent-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.vocab-definition {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.vocab-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.view-details-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-primary);
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.vocab-card:hover .view-details-btn {
    gap: 0.75rem;
    color: var(--accent-secondary);
}

.vocab-card:hover .view-details-btn i {
    transform: translateX(3px);
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.modal.hidden {
    display: none;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    background-color: var(--bg-card);
    border-radius: 20px;
    max-width: 800px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(110, 86, 207, 0.2);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
}

.modal-close:hover {
    background-color: var(--accent-primary);
    transform: rotate(90deg);
}

.modal-body {
    padding: 3rem;
}

.modal-header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid rgba(110, 86, 207, 0.2);
}

.modal-icon-title {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.modal-icon {
    width: 70px;
    height: 70px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
}

.modal-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.modal-category {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: rgba(110, 86, 207, 0.2);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--accent-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.modal-section {
    margin-bottom: 2rem;
}

.modal-section-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: 1rem;
}

.modal-section-title i {
    font-size: 1rem;
}

.modal-text {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
}

.analogy-box {
    background-color: rgba(110, 86, 207, 0.1);
    border-left: 4px solid var(--accent-primary);
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 1rem;
}

.analogy-box strong {
    color: var(--accent-secondary);
    display: block;
    margin-bottom: 0.5rem;
}

.example-box {
    background-color: rgba(76, 175, 80, 0.1);
    border-left: 4px solid #4CAF50;
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 1rem;
}

.example-box strong {
    color: #4CAF50;
    display: block;
    margin-bottom: 0.5rem;
}

/* No Results */
.no-results {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.no-results i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.3;
}

.no-results h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

/* Quick Reference */
.quick-reference {
    background-color: var(--bg-darker);
    padding: 4rem 0;
}

.reference-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.reference-card {
    background-color: var(--bg-card);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(110, 86, 207, 0.1);
    transition: all 0.3s ease;
}

.reference-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 35px rgba(110, 86, 207, 0.3);
}

.ref-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    margin: 0 auto 1.5rem;
    transition: all 0.3s ease;
}

.reference-card:hover .ref-icon {
    transform: scale(1.1) rotate(10deg);
}

.reference-card h3 {
    font-size: 1.4rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.reference-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.ref-btn {
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border: none;
    border-radius: 50px;
    color: white;
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.ref-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(110, 86, 207, 0.4);
}

/* Learning Tips */
.learning-tips {
    padding: 4rem 0;
}

.tips-grid-vocab {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.tip-card-vocab {
    background-color: var(--bg-card);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(110, 86, 207, 0.1);
    transition: all 0.3s ease;
    position: relative;
    padding-left: 5rem;
}

.tip-card-vocab:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(110, 86, 207, 0.3);
}

.tip-number {
    position: absolute;
    left: 2rem;
    top: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

.tip-card-vocab h4 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.tip-card-vocab p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

/* Responsive Design */
@media (max-width: 992px) {
    .vocab-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 1.5rem;
    }

    .vocab-stats {
        gap: 2rem;
    }

    .category-filters {
        gap: 0.5rem;
    }

    .category-btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    .vocab-hero {
        padding-top: 60px;
        padding-bottom: 40px;
    }

    .vocab-stats {
        gap: 1.5rem;
    }

    .stat-item {
        padding: 1rem 2rem;
    }

    .stat-number {
        font-size: 2.5rem;
    }

    .vocab-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .search-input {
        font-size: 1rem;
        padding: 0.875rem 3rem 0.875rem 3rem;
    }

    .category-filters {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 0.5rem;
    }

    .category-btn {
        flex-shrink: 0;
    }

    .modal-content {
        margin: 1rem;
        max-height: 90vh;
    }

    .modal-body {
        padding: 2rem 1.5rem;
    }

    .modal-title {
        font-size: 2rem;
    }

    .reference-grid,
    .tips-grid-vocab {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .vocab-hero h1 {
        font-size: 2.5rem;
    }

    .vocab-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .stat-item {
        width: 100%;
        padding: 1rem;
    }

    .vocab-card {
        padding: 1.5rem;
    }

    .vocab-title {
        font-size: 1.2rem;
    }

    .modal-icon-title {
        flex-direction: column;
        text-align: center;
    }

    .modal-title {
        font-size: 1.75rem;
    }

    .tip-card-vocab {
        padding-left: 2rem;
        padding-top: 5rem;
    }

    .tip-number {
        left: 50%;
        top: 2rem;
        transform: translateX(-50%);
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Custom Scrollbar */
.modal-content::-webkit-scrollbar {
    width: 8px;
}

.modal-content::-webkit-scrollbar-track {
    background: var(--bg-dark);
    border-radius: 10px;
}

.modal-content::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 10px;
}

.modal-content::-webkit-scrollbar-thumb:hover {
    background: var(--accent-secondary);
}

/* Utility Classes */
.hidden {
    display: none !important;
}