/* style.css - LesioScope Main Stylesheet */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #2c7da0;
    --primary-dark: #1f5e7a;
    --primary-light: #61a5c2;
    --secondary: #e9f5f9;
    --accent: #f0f9ff;
    --warning: #e9b35f;
    --contagious: #e07a5f;
    --noncontagious: #81b29a;
    --gray-light: #f8fafc;
    --gray-border: #e2e8f0;
    --gray-text: #475569;
    --dark-text: #0f172a;
    --shadow-sm: 0 4px 6px -1px rgb(0 0 0 / 0.05);
    --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.08);
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --radius-sm: 0.75rem;
    --radius-md: 1rem;
    --radius-lg: 1.25rem;
    --radius-xl: 2rem;
    --transition: all 0.2s ease;
}

body {
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    background: var(--gray-light);
    color: var(--dark-text);
    line-height: 1.5;
    scroll-behavior: smooth;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ========== NAVIGATION ========== */
.navbar {
    background: white;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--gray-border);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    max-width: 1280px;
    margin: 0 auto;
}

.logo {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.3px;
    background: linear-gradient(135deg, #1e5f7a, #3b8db0);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.logo span {
    color: var(--dark-text);
    background: none;
    -webkit-background-clip: unset;
    background-clip: unset;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--gray-text);
    font-weight: 500;
    transition: var(--transition);
    font-size: 1rem;
    padding-bottom: 4px;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--primary);
    padding: 0.25rem 0.5rem;
}

/* ========== HERO SECTION ========== */
.hero {
    background: linear-gradient(120deg, #eef2ff 0%, #e0f2fe 100%);
    border-radius: 0 0 2rem 2rem;
    padding: 3rem 1rem;
    margin-bottom: 2rem;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 2.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, #155e75, #2c7da0);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    color: #1e3a5f;
    margin-bottom: 1.8rem;
}

/* ========== SEARCH SECTION ========== */
.search-section {
    margin: 1rem 0 0;
}

.search-card {
    background: white;
    border-radius: 3rem;
    padding: 0.3rem 0.3rem 0.3rem 1.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-border);
    max-width: 600px;
    margin: 0 auto;
}

.search-icon {
    font-size: 1.3rem;
    color: #5b8c9e;
}

#searchInput {
    flex: 1;
    border: none;
    padding: 0.9rem 0;
    font-size: 1rem;
    outline: none;
    background: transparent;
    font-weight: 500;
}

#searchInput::placeholder {
    color: #94a3b8;
    font-weight: 400;
}

.search-btn {
    background: var(--primary);
    border: none;
    color: white;
    padding: 0.7rem 1.6rem;
    border-radius: 3rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.search-btn:hover {
    background: var(--primary-dark);
    transform: scale(0.98);
}

.search-hint {
    font-size: 0.75rem;
    margin-top: 0.6rem;
    color: #2c5a6e;
}

/* ========== SECTION TITLES ========== */
.section-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin: 2rem 0 1.5rem 0;
    border-left: 5px solid var(--primary);
    padding-left: 1rem;
}

/* ========== LESION LIBRARY GRID ========== */
.lesion-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.8rem;
    margin-top: 1rem;
}

.lesion-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.25s, box-shadow 0.25s;
    border: 1px solid var(--gray-border);
    display: flex;
    flex-direction: column;
}

.lesion-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.img-gallery-preview {
    height: 180px;
    position: relative;
    overflow: hidden;
}

.lesion-card-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
}

.badges-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    padding: 12px;
}

.contagious-badge {
    background: var(--contagious);
    color: white;
    padding: 4px 12px;
    border-radius: 40px;
    font-size: 0.7rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.noncontagious-badge {
    background: var(--noncontagious);
}

.img-label {
    background: rgba(0, 0, 0, 0.6);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 500;
}

.card-content {
    padding: 1.2rem 1.2rem 1.5rem;
}

.lesion-name {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--dark-text);
}

.lesion-desc {
    color: var(--gray-text);
    font-size: 0.9rem;
    margin: 0.6rem 0;
    line-height: 1.5;
}

.cause-text {
    font-weight: 600;
    font-size: 0.85rem;
    margin: 0.5rem 0;
    color: var(--dark-text);
}

.treatment-snippet {
    background: #f1f5f9;
    padding: 0.7rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    margin-top: 0.8rem;
    border-left: 3px solid var(--primary);
}

.no-results {
    text-align: center;
    padding: 3rem;
    background: white;
    border-radius: var(--radius-lg);
    font-size: 1.1rem;
    color: var(--gray-text);
    grid-column: 1 / -1;
}

/* ========== GALLERY SECTION ========== */
.gallery-subtitle {
    margin-bottom: 1rem;
    color: var(--gray-text);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
    gap: 1.2rem;
    margin: 1.5rem 0;
}

.gallery-item {
    background: white;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--gray-border);
    text-align: center;
    cursor: pointer;
}

.gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.gallery-img {
    height: 140px;
    background-size: cover;
    background-position: center;
    width: 100%;
    object-fit: cover;
    display: block;
}

.gallery-label {
    padding: 0.7rem;
    font-weight: 600;
    font-size: 0.85rem;
    background: white;
    color: var(--dark-text);
}

/* ========== TREATMENT GUIDE ========== */
.treatment-guide {
    background: linear-gradient(145deg, #ffffff, #f9fefb);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin: 2rem 0;
    border: 1px solid var(--gray-border);
    box-shadow: var(--shadow-sm);
}

.treatment-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.treatment-card {
    flex: 1;
    min-width: 200px;
    background: white;
    border-radius: var(--radius-md);
    padding: 1.2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    border: 1px solid #e2edf2;
    transition: var(--transition);
}

.treatment-card:hover {
    border-color: var(--primary-light);
}

.treatment-card h4 {
    font-size: 1.2rem;
    color: var(--primary-dark);
    margin-bottom: 0.7rem;
}

/* ========== PREVENTION GUIDE ========== */
.prevention {
    background: #eef6fb;
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin: 2rem 0;
}

.prevention-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
    list-style: none;
}

.prevention-item {
    background: white;
    border-radius: var(--radius-md);
    border: 1px solid #dbe9f2;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition);
}

.prevention-item.open {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.prevention-toggle {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: none;
    background: transparent;
    padding: 1.15rem 1.25rem;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 700;
    color: var(--dark-text);
    text-align: left;
}

.prevention-toggle:hover {
    background: var(--secondary);
}

.prevention-chevron {
    font-size: 1.3rem;
    transition: transform 0.2s ease;
}

.prevention-item.open .prevention-chevron {
    transform: rotate(180deg);
}

.prevention-detail {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease, padding 0.25s ease;
    padding: 0 1.25rem;
    color: var(--gray-text);
    line-height: 1.65;
}

.prevention-item.open .prevention-detail {
    padding: 0 1.25rem 1rem;
}

.prevention-detail p {
    margin: 0;
    font-size: 0.95rem;
}

.quiz {
    background: #f7fbfe;
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin: 2rem 0;
}

.quiz-intro {
    font-size: 1rem;
    margin-bottom: 1.25rem;
    color: #3b566c;
}

.quiz-card,
.quiz-question-card,
.quiz-results-card {
    background: white;
    border-radius: var(--radius-md);
    border: 1px solid #dbe9f2;
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
}

.quiz-type-panel {
    display: grid;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.quiz-type-label {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-dark);
}

.quiz-type-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.quiz-type-btn {
    background: white;
    border: 1px solid #cbd5e1;
    border-radius: 999px;
    padding: 0.85rem 1.15rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}

.quiz-type-btn:hover,
.quiz-type-btn:focus {
    border-color: var(--primary);
    background: #e8f5ff;
}

.quiz-type-btn.secondary {
    background: var(--secondary);
    border-color: #bfdbfe;
}

.quiz-start-text {
    color: var(--gray-text);
    line-height: 1.6;
}

.quiz-results-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

.quiz-meta {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.quiz-image-wrap {
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 1rem;
    background: #f0f7fb;
}

.quiz-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.floating .quiz-image {
    animation: floatImage 6s ease-in-out infinite;
}

.quiz-visual-panel {
    position: relative;
    margin-bottom: 1rem;
}

.quiz-visual-panel .quiz-image-wrap {
    position: relative;
    transition: transform 0.3s ease;
}

.quiz-image-wrap:hover {
    transform: translateY(-6px) scale(1.01);
}

.quiz-sticker {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: #ffeded;
    color: #a12d2d;
    padding: 0.75rem 1rem;
    border: 1px solid #f3caca;
    border-radius: 1rem;
    font-weight: 700;
    font-size: 0.9rem;
    opacity: 0;
    transform: translateY(-10px) scale(0.95);
    transition: opacity 0.2s ease, transform 0.2s ease;
    pointer-events: none;
}

.quiz-sticker.show-sticker {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.confetti-container {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.confetti-piece {
    position: absolute;
    top: -10px;
    width: 10px;
    height: 16px;
    border-radius: 3px;
    opacity: 0;
    animation: confettiFall 1.2s ease forwards;
}

.confetti-container.show-confetti .confetti-piece {
    opacity: 1;
}

@keyframes floatImage {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes confettiFall {
    0% { opacity: 0; transform: translateY(0) rotate(0deg); }
    50% { opacity: 1; }
    100% { transform: translateY(160px) rotate(360deg); opacity: 0; }
}

.quiz-option-btn {
    position: relative;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.quiz-option-btn:hover:not(:disabled) {
    transform: translateY(-4px);
    box-shadow: 0 12px 20px rgba(46, 125, 165, 0.15);
    background: #eaf8ff;
}

.quiz-monitor {
    background: #eef7ff;
    border: 1px solid #cbe4f7;
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-top: 1rem;
}

.quiz-monitor h3 {
    margin: 0 0 0.65rem 0;
    font-size: 1.1rem;
    color: var(--primary-dark);
}

.quiz-monitor p {
    margin: 0;
    line-height: 1.7;
    color: var(--gray-text);
}

.quiz-option-btn.correct {
    border-color: #1f6a44;
    background: #e6f7ef;
}

.quiz-option-btn.incorrect {
    border-color: #a12d2d;
    background: #fde8e8;
}

.quiz-feedback.correct {
    color: #1f6a44;
}

.quiz-feedback.incorrect {
    color: #a12d2d;
}

.quiz-question {
    font-size: 1.1rem;
    margin: 0 0 1rem 0;
    color: var(--dark-text);
}

.quiz-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 0.8rem;
    margin-bottom: 1rem;
}

.quiz-option-btn,
.quiz-btn {
    border: 1px solid #cbd5e1;
    background: white;
    color: var(--dark-text);
    border-radius: 0.85rem;
    padding: 0.95rem 1rem;
    cursor: pointer;
    font-weight: 700;
    transition: var(--transition);
}

.quiz-option-btn:hover,
.quiz-btn:hover {
    border-color: var(--primary-light);
    background: #f4fbff;
}

.quiz-option-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.quiz-feedback {
    min-height: 2.5rem;
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.quiz-feedback.correct {
    color: #1f6a44;
}

.quiz-feedback.incorrect {
    color: #a43c3c;
}

.quiz-actions {
    display: flex;
    justify-content: flex-end;
}

.quiz-score {
    font-size: 1rem;
    margin: 0.75rem 0 1rem;
}

/* ========== SCORE POP-UP MODAL ========== */
.score-modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(2px);
}

.score-modal.open {
    display: flex;
}

.score-modal-box {
    background: white;
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    max-width: 420px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
    position: relative;
    animation: scoreModalSlide 0.35s ease-out;
}

@keyframes scoreModalSlide {
    from {
        opacity: 0;
        transform: scale(0.92) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.score-modal-box .modal-close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #64748b;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    transition: color 0.2s ease;
}

.score-modal-box .modal-close-btn:hover {
    color: var(--dark-text);
}

.score-content {
    text-align: center;
}

.score-emoji {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.score-content h2 {
    font-size: 1.8rem;
    margin-bottom: 0.75rem;
    color: var(--dark-text);
}

.score-display {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    margin: 0.5rem 0;
}

.score-percent {
    font-size: 1.2rem;
    color: var(--gray-text);
    margin-bottom: 1.5rem;
}

.score-message {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 0.75rem;
}

.score-encouragement {
    color: var(--gray-text);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.close-score-btn {
    background: var(--primary);
    border: none;
    color: white;
    padding: 0.85rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.close-score-btn:hover {
    background: var(--primary-dark);
    transform: scale(0.98);
}

/* ========== ABOUT SECTION ========== */
.about-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin: 2rem 0;
    border: 1px solid var(--gray-border);
    box-shadow: var(--shadow-sm);
}

.about-text {
    font-size: 1.05rem;
    margin-bottom: 1rem;
    line-height: 1.6;
    color: var(--gray-text);
}

.credit {
    margin-top: 1.5rem;
    font-weight: 500;
    color: var(--primary);
}

/* ========== FOOTER ========== */
footer {
    background: #0f172a;
    color: #cbd5e1;
    text-align: center;
    padding: 2rem;
    margin-top: 3rem;
    border-radius: 2rem 2rem 0 0;
    font-size: 0.85rem;
}

/* ========== RESPONSIVE DESIGN ========== */
/* Tablet View (768px - 1024px) */
@media screen and (max-width: 1024px) {
    .container {
        padding: 0 1.25rem;
    }
    
    .hero h1 {
        font-size: 2.4rem;
    }
    
    .lesion-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 1.5rem;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
    
    .treatment-card {
        min-width: 180px;
    }
}

/* Mobile View (up to 767px) */
@media screen and (max-width: 767px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        gap: 0;
        background: white;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        padding: 1rem 0;
        box-shadow: var(--shadow-md);
        border-top: 1px solid var(--gray-border);
    }
    
    .nav-links.show {
        display: flex;
    }
    
    .nav-links li {
        text-align: center;
        padding: 0.8rem 0;
    }
    
    .nav-links a {
        display: block;
        padding: 0.5rem;
    }
    
    .nav-container {
        flex-wrap: wrap;
        position: relative;
    }
    
    .hero {
        padding: 2rem 1rem;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .search-card {
        padding: 0.2rem 0.2rem 0.2rem 1rem;
        flex-wrap: wrap;
        border-radius: 2rem;
    }
    
    #searchInput {
        padding: 0.7rem 0;
        font-size: 0.9rem;
        min-width: 120px;
    }
    
    .search-btn {
        padding: 0.5rem 1.2rem;
        font-size: 0.85rem;
    }
    
    .section-title {
        font-size: 1.5rem;
        margin: 1.5rem 0 1rem 0;
    }
    
    .lesion-grid {
        grid-template-columns: 1fr;
        gap: 1.2rem;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 1rem;
    }
    
    .gallery-img {
        height: 120px;
    }
    
    .treatment-guide {
        padding: 1.2rem;
    }
    
    .treatment-grid {
        flex-direction: column;
        gap: 1rem;
    }
    
    .treatment-card {
        min-width: auto;
    }
    
    .prevention {
        padding: 1.2rem;
    }
    
    .prevention-list li {
        padding: 0.6rem 1rem;
        font-size: 0.8rem;
    }
    
    .about-card {
        padding: 1.2rem;
    }
    
    footer {
        padding: 1.5rem;
        font-size: 0.75rem;
    }
}

/* Small Mobile (up to 480px) */
@media screen and (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero h1 {
        font-size: 1.5rem;
    }
    
    .search-card {
        border-radius: 1.5rem;
    }
    
    .search-icon {
        font-size: 1rem;
    }
    
    #searchInput {
        font-size: 0.85rem;
    }
    
    .search-btn {
        padding: 0.45rem 1rem;
    }
    
    .lesion-name {
        font-size: 1.2rem;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
    
    .gallery-label {
        font-size: 0.75rem;
        padding: 0.5rem;
    }
}

/* Landscape orientation for mobile */
@media screen and (max-width: 767px) and (orientation: landscape) {
    .nav-links {
        max-height: 70vh;
        overflow-y: auto;
    }
    
    .hero {
        padding: 1.5rem;
    }
    
    .lesion-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

/* ========== CATEGORY SECTIONS ========== */
.category-section {
    margin-bottom: 2.5rem;
}

.category-header {
    border-radius: var(--radius-sm);
    padding: 1rem 1.5rem;
    margin-bottom: 1.2rem;
    border-left: 5px solid;
}

.category-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.category-desc {
    font-size: 0.85rem;
    opacity: 0.85;
    margin: 0;
}

.category-header.category-primary {
    background: #eff6ff;
    border-left-color: #3b82f6;
    color: #1e3a8a;
}

.category-header.category-secondary {
    background: #fff7ed;
    border-left-color: #f97316;
    color: #7c2d12;
}

.category-header.category-malignant {
    background: #fef2f2;
    border-left-color: #ef4444;
    color: #7f1d1d;
}

/* ========== CLICKABLE IMAGE ========== */
.clickable-img {
    cursor: zoom-in;
    transition: opacity 0.15s;
}

.clickable-img:hover {
    opacity: 0.88;
}

/* ========== IMAGE MODAL ========== */
.image-modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.image-modal.open {
    display: flex;
}

.modal-box {
    position: relative;
    background: white;
    border-radius: var(--radius-md);
    overflow: hidden;
    max-width: min(720px, 95vw);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    animation: modalFadeIn 0.2s ease;
}

@keyframes modalFadeIn {
    from { opacity: 0; transform: scale(0.93); }
    to   { opacity: 1; transform: scale(1); }
}

.modal-img {
    width: 100%;
    max-height: 72vh;
    object-fit: contain;
    display: block;
    background: #f1f5f9;
}

.modal-caption {
    padding: 0.75rem 1.25rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark-text);
    border-top: 1px solid var(--gray-border);
    text-align: center;
}

.modal-close-btn {
    position: absolute;
    top: 0.6rem;
    right: 0.6rem;
    background: rgba(0, 0, 0, 0.55);
    color: white;
    border: none;
    border-radius: 50%;
    width: 2rem;
    height: 2rem;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s;
    z-index: 1001;
}

.modal-close-btn:hover {
    background: rgba(0, 0, 0, 0.8);
}

/* Accessibility - reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}