/* Custom CSS for Color Palette Extractor */

:root {
    --transition-speed: 0.3s;
    --transition-ease: cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Upload Area Styling */
.extractor-upload-area {
    border: 3px dashed #dee2e6;
    border-radius: 1.25rem;
    padding: 3rem 1.5rem;
    text-align: center;
    background-color: #f8f9fa;
    cursor: pointer;
    transition: all var(--transition-speed) var(--transition-ease);
    position: relative;
    overflow: hidden;
}

.extractor-upload-area:hover {
    border-color: #0d6efd;
    background-color: rgba(13, 110, 253, 0.03);
    transform: translateY(-2px);
}

.extractor-upload-area.dragover {
    border-color: #198754;
    background-color: rgba(25, 135, 84, 0.06);
    transform: scale(1.02);
}

.extractor-upload-icon {
    font-size: 3.5rem;
    color: #6c757d;
    transition: transform var(--transition-speed) var(--transition-ease);
}

.extractor-upload-area:hover .extractor-upload-icon {
    transform: translateY(-5px);
}

/* Loader Overlay */
.loader-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.85);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
    border-radius: 1.25rem;
}

/* Image Preview Container */
.preview-card {
    background-color: #f8f9fa;
    border-radius: 1rem;
    padding: 0.75rem;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}

.preview-image {
    max-width: 100%;
    max-height: 320px;
    border-radius: 0.75rem;
    object-fit: contain;
}

/* Coolors-style Palette Preview Bar */
.palette-strip {
    display: flex;
    height: 120px;
    border-radius: 0.75rem;
    overflow: hidden;
    margin-bottom: 2rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.palette-strip-color {
    flex: 1;
    height: 100%;
    position: relative;
    cursor: pointer;
    transition: flex 0.4s var(--transition-ease), filter var(--transition-speed);
}

.palette-strip-color:hover {
    flex: 1.5;
    filter: saturate(1.1) brightness(1.05);
}

.palette-strip-color .color-label {
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-family: monospace;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.palette-strip-color:hover .color-label {
    opacity: 1;
}

/* Detailed Swatch Cards */
.swatch-card {
    border: 1px solid #e9ecef;
    border-radius: 1rem;
    overflow: hidden;
    transition: all var(--transition-speed) var(--transition-ease);
    background: #fff;
}

.swatch-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
}

.swatch-color-display {
    height: 80px;
    position: relative;
    cursor: pointer;
}

.swatch-color-display::after {
    content: "Copy HEX";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: rgba(0,0,0,0.7);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 30px;
    opacity: 0;
    transition: all 0.2s ease;
}

.swatch-color-display:hover::after {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.swatch-details {
    padding: 0.75rem;
}

.swatch-hex {
    font-weight: 700;
    font-family: monospace;
    font-size: 0.95rem;
    color: #212529;
}

.swatch-rgb {
    font-size: 0.75rem;
    font-family: monospace;
    color: #6c757d;
}

.swatch-percent-bar {
    height: 4px;
    background-color: #dee2e6;
    border-radius: 2px;
    overflow: hidden;
    margin-top: 8px;
}

.swatch-percent-fill {
    height: 100%;
    background-color: #0d6efd;
    border-radius: 2px;
}

/* Copy Confirmation Badge (Toast alternative) */
.copy-badge {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background-color: #212529;
    color: #fff;
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 1050;
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.copy-badge.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* FAQs and accordion tweaks */
.accordion-button:not(.collapsed) {
    background-color: rgba(13, 110, 253, 0.05);
    color: #0d6efd;
}