/* ===== Demo Section & Modal ===== */
.demo-section {
    background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(250,250,250,0.02));
    padding: var(--spacing-xl) 0;
}
.demo-cta-wrap {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-md);
    flex-wrap: wrap;
}
.demo-modal {
    max-width: 1000px;
    width: 95%;
    padding: 0;
    background: transparent;
}
.demo-iframe-wrap {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}
.demo-iframe-wrap iframe {
    display: block;
    width: 100%;
    height: 640px;
}


/* ===== Photo Upload Modal ===== */
.photo-modal {
    max-width: 600px;
}

.photo-upload-container {
    padding: var(--spacing-xl);
    text-align: center;
}

.photo-upload-container h2 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.photo-upload-container p {
    color: var(--text-color);
    opacity: 0.8;
    margin-bottom: var(--spacing-lg);
}

.upload-options {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin: var(--spacing-xl) 0;
    flex-wrap: wrap;
}

.upload-options .btn {
    min-width: 180px;
    padding: var(--spacing-md) var(--spacing-lg);
}

.photo-preview {
    margin-top: var(--spacing-lg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.photo-preview img {
    width: 100%;
    max-height: 400px;
    object-fit: contain;
    background: var(--light-gray);
}

.photo-actions {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--light-gray);
    justify-content: center;
    flex-wrap: wrap;
}

.skip-photo {
    margin-top: var(--spacing-lg);
}

.btn-text {
    background: none;
    color: var(--text-color);
    opacity: 0.7;
    box-shadow: none;
    text-decoration: underline;
}

.btn-text:hover {
    opacity: 1;
    transform: none;
}

/* ===== Photo Gallery ===== */
.gallery-section {
    background: var(--white);
    padding: var(--spacing-xl) 0;
}

.gallery-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin: var(--spacing-lg) 0;
}

.gallery-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--background-color);
    border-radius: var(--radius-lg);
    min-width: 120px;
}

.gallery-stat .stat-number {
    font-size: 2.5rem;
    font-family: var(--font-heading);
    color: var(--primary-color);
}

.gallery-stat .stat-label {
    font-size: 0.9rem;
    color: var(--text-color);
    opacity: 0.8;
    margin-top: var(--spacing-xs);
}

.recent-photos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.photo-gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    padding: 10px;
}

/* Thumbnail card */
.gallery-item {
  width: 300px;        
  height: 300px;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}

/* Thumbnail image */
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;    
  display: block;
  padding: 10px;
}

/* Delete button */
.gallery-delete {
  position: absolute;
  top: 8px;
  right: 8px;
  border: 0;
  border-radius: 10px;
  padding: 6px 8px;
  cursor: pointer;
  background: rgba(0,0,0,0.6);
  color: #fff;
}

.gallery-delete:hover {
  background: rgba(255,0,0,0.8);
}

.gallery-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.gallery-item-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    padding: var(--spacing-sm);
    color: white;
    font-size: 0.85rem;
    font-weight: 600;
}

.gallery-empty {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-color);
    opacity: 0.6;
}

.gallery-empty i {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.3;
}

/* ===== Interactive Activity Modal ===== */
.activity-modal {
    max-width: 800px;
}

.activity-content {
    padding: var(--spacing-xl);
}

.activity-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.activity-header h2 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.activity-description {
    background: var(--background-color);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    border-left: 4px solid var(--primary-color);
}

/* Drawing Canvas Activity */
.drawing-canvas-container {
    text-align: center;
}

.drawing-canvas {
    border: 3px solid var(--primary-color);
    border-radius: var(--radius-md);
    cursor: crosshair;
    touch-action: none;
    background: white;
    max-width: 100%;
}

.drawing-tools {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin: var(--spacing-md) 0;
    flex-wrap: wrap;
}

.color-picker {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.color-option {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    border: 3px solid transparent;
    cursor: pointer;
    transition: var(--transition-fast);
}

.color-option:hover {
    transform: scale(1.1);
}

.color-option.active {
    border-color: var(--text-color);
    transform: scale(1.2);
}

.brush-size {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.brush-option {
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
}

.brush-option:hover {
    background: var(--light-gray);
}

.brush-option.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Quiz Activity */
.quiz-container {
    max-width: 600px;
    margin: 0 auto;
}

.quiz-question {
    background: var(--background-color);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.quiz-question h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.quiz-option {
    padding: var(--spacing-md);
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: left;
}

.quiz-option:hover {
    background: var(--light-gray);
    border-color: var(--primary-color);
}

.quiz-option.correct {
    background: var(--success-color);
    color: white;
    border-color: var(--success-color);
}

.quiz-option.incorrect {
    background: var(--error-color);
    color: white;
    border-color: var(--error-color);
}

.quiz-feedback {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
    font-weight: 600;
}

.quiz-feedback.correct {
    background: rgba(76, 175, 80, 0.1);
    color: var(--success-color);
}

.quiz-feedback.incorrect {
    background: rgba(244, 67, 54, 0.1);
    color: var(--error-color);
}

/* Memory Match Game */
.memory-game {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
    max-width: 400px;
    margin: 0 auto;
}

.memory-card {
    aspect-ratio: 1;
    background: var(--primary-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
}

.memory-card:hover {
    transform: scale(1.05);
}

.memory-card.flipped {
    background: white;
    border: 2px solid var(--primary-color);
}

.memory-card.matched {
    background: var(--success-color);
    cursor: default;
}

.memory-card-back {
    font-size: 1.5rem;
    color: white;
}

.memory-card-front {
    display: none;
}

.memory-card.flipped .memory-card-back {
    display: none;
}

.memory-card.flipped .memory-card-front {
    display: block;
}

/* Dua Recorder */
.dua-recorder {
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
}

.record-button {
    width: 100px;
    height: 100px;
    border-radius: var(--radius-full);
    background: var(--error-color);
    color: white;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    transition: var(--transition-normal);
    margin: var(--spacing-lg) auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.record-button:hover {
    transform: scale(1.1);
}

.record-button.recording {
    animation: pulse-record 1s infinite;
}

@keyframes pulse-record {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.audio-visualizer {
    height: 100px;
    background: var(--light-gray);
    border-radius: var(--radius-md);
    margin: var(--spacing-md) 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.audio-bar {
    width: 8px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 4px;
    animation: audio-wave 0.8s ease-in-out infinite;
}

.audio-bar:nth-child(2) { animation-delay: 0.1s; }
.audio-bar:nth-child(3) { animation-delay: 0.2s; }
.audio-bar:nth-child(4) { animation-delay: 0.3s; }
.audio-bar:nth-child(5) { animation-delay: 0.4s; }

@keyframes audio-wave {
    0%, 100% { height: 20px; }
    50% { height: 60px; }
}

.audio-playback {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--background-color);
    border-radius: var(--radius-md);
}

/* Interactive Checklist */
.interactive-checklist {
    max-width: 500px;
    margin: 0 auto;
}

.checklist-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    cursor: pointer;
    transition: var(--transition-fast);
}

.checklist-item:hover {
    background: var(--light-gray);
}

.checklist-item.completed {
    background: rgba(76, 175, 80, 0.1);
    border-color: var(--success-color);
}

.checklist-checkbox {
    width: 30px;
    height: 30px;
    border: 3px solid var(--border-color);
    border-radius: var(--radius-sm);
    margin-right: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.checklist-item.completed .checklist-checkbox {
    background: var(--success-color);
    border-color: var(--success-color);
}

.checklist-checkbox i {
    display: none;
    color: white;
    font-size: 1.2rem;
}

.checklist-item.completed .checklist-checkbox i {
    display: block;
    animation: check-bounce 0.3s ease;
}

@keyframes check-bounce {
    0% { transform: scale(0); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.checklist-progress {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.checklist-progress-bar {
    height: 20px;
    background: var(--light-gray);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin: var(--spacing-sm) 0;
}

.checklist-progress-fill {
    height: 100%;
    background: var(--success-color);
    transition: width 0.5s ease;
}

/* Photo Proof Badge */
.photo-proof-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--secondary-color);
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    margin-top: var(--spacing-sm);
}

/* Completion Certificate */
.certificate-container {
    background: white;
    padding: var(--spacing-xl);
    border: 5px solid var(--primary-color);
    border-radius: var(--radius-lg);
    text-align: center;
    max-width: 600px;
    margin: var(--spacing-lg) auto;
    box-shadow: var(--shadow-xl);
}

.certificate-badge {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--spacing-md);
    border-radius: var(--radius-full);
    background: var(--secondary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.certificate-container h2 {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.certificate-name {
    font-size: 1.5rem;
    font-family: var(--font-heading);
    color: var(--accent-color);
    margin: var(--spacing-md) 0;
}

.certificate-text {
    color: var(--text-color);
    line-height: 1.8;
    margin: var(--spacing-md) 0;
}

.certificate-date {
    font-style: italic;
    color: var(--text-color);
    opacity: 0.7;
    margin-top: var(--spacing-md);
}

/* Responsive Design */
@media (max-width: 768px) {
    .upload-options {
        flex-direction: column;
    }
    
    .upload-options .btn {
        width: 100%;
    }
    
    .memory-game {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .photo-gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .drawing-tools {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .gallery-stats {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .memory-game {
        grid-template-columns: repeat(2, 1fr);
    }
}