/* Slides Manager Styles */
.slides-section-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 10px;
}

.slides-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--glass-bg, rgba(255, 255, 255, 0.8));
    backdrop-filter: blur(10px);
    padding: 15px 20px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.slides-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}

.slide-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
    position: relative;
    border: 1px solid #eee;
}

.slide-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.slide-card-preview {
    height: 120px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary);
}

.slide-card-info {
    padding: 12px;
}

.slide-card-title {
    font-weight: bold;
    margin-bottom: 5px;
    font-size: 1rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Editor UI */
.slides-editor-container {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 20px;
    height: 70vh;
}

.slides-sidebar {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 10px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sidebar-thumb {
    aspect-ratio: 16/9;
    background: #fff;
    border: 2px solid transparent;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    cursor: pointer;
    position: relative;
}

.sidebar-thumb.active {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.2);
}

.slide-main-editor {
    background: #fff;
    border-radius: 12px;
    border: 1px solid #ddd;
    display: flex;
    flex-direction: column;
    padding: 20px;
    box-shadow: inset 0 0 10px rgba(0,0,0,0.02);
}

.slide-canvas {
    flex: 1;
    border: 2px dashed #ccc;
    border-radius: 10px;
    margin-bottom: 20px;
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    background: #fafafa;
}

.slide-input-title {
    font-size: 1.8rem;
    font-weight: bold;
    border: none;
    background: transparent;
    width: 100%;
    text-align: center;
}

.slide-input-content {
    flex: 1;
    font-size: 1.2rem;
    border: none;
    background: transparent;
    resize: none;
    width: 100%;
    text-align: center;
}

/* Presentation Mode */
.presentation-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: #000;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.presentation-slide {
    width: 90%;
    height: 80%;
    background: #fff;
    border-radius: 20px;
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
    animation: slideFadeIn 0.5s ease-out;
}

@keyframes slideFadeIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.presentation-controls {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 20px;
    background: rgba(0,0,0,0.5);
    padding: 10px 20px;
    border-radius: 30px;
    backdrop-filter: blur(5px);
}

.presentation-btn {
    background: transparent;
    border: none;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
    transition: 0.2s;
}

.presentation-btn:hover {
    color: var(--primary);
    transform: scale(1.2);
}

.close-presentation {
    position: absolute;
    top: 20px;
    right: 20px;
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
}

.interactive-reveal-btn {
    margin-top: 30px;
    padding: 12px 25px;
    background: var(--primary);
    color: #fff;
    border-radius: 25px;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    transition: 0.3s;
}

.interactive-reveal-btn:hover {
    filter: brightness(1.1);
    transform: scale(1.05);
}

.hidden-answer {
    display: none;
}

.revealed .hidden-answer {
    display: block;
    animation: fadeInUp 0.4s ease;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}