/**
 * Color Converter — widget styles.
 *
 * Styles the front-end colour adjustment widget: a two-pane editor (image
 * preview | filter controls) shown after a user uploads an image. Unlike the
 * units converters this widget is DARK-THEMED (white text on translucent white
 * surfaces over a dark hero section), so the `--ci-*` custom properties are
 * re-scoped here with dark-friendly values.
 *
 * Brand accent is the genbuz.net primary blue (#0058be). The dark text/surface
 * treatment is preserved by design (only the accent blue is unified).
 */

.ciw-colour-widget {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 1rem;
    line-height: 1.5;
    color: var(--ci-text-primary, #ffffff);

    /* Dark / hero-section theme (scoped so unit converters keep their light theme) */
    --ci-primary: #0058be;
    --ci-primary-dark: #004a9c;
    --ci-primary-light: #0074db;
    --ci-background: rgb(37, 47, 74);
    --ci-input-background: rgba(255, 255, 255, 0.05);
    --ci-surface: rgba(255, 255, 255, 0.05);
    --ci-border: rgba(255, 255, 255, 0.1);
    --ci-text-primary: #ffffff;
    --ci-text-secondary: rgba(255, 255, 255, 0.6);
    --ci-text-tertiary: rgba(255, 255, 255, 0.4);
    --ci-shadow-base: 0 3px 0 0 rgba(0, 0, 0, 0.15);
    --ci-shadow-lg: 0 3px 0 0 rgba(0, 0, 0, 0.15);
}

.ciw-colour-upload-area {
    margin-bottom: 0;
}

.ciw-colour-editor {
    display: none;
}

.ciw-colour-layout {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 24px;
    min-height: 400px;
}

.ciw-colour-preview-panel {
    display: flex;
    flex-direction: column;
    background: #323949;
    border: 1px solid var(--ci-border, #e2e8f0);
    border-radius: var(--ci-radius-md, 12px);
    overflow: hidden;
}

.ciw-colour-preview-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: var(--ci-surface, #f8fafc);
    position: relative;
    overflow: hidden;
    min-height: 300px;
}

.ciw-colour-preview-tabs {
    position: absolute;
    top: 12px;
    right: 12px;
    display: flex;
    gap: 0;
    background: #323949;
    border: 1px solid var(--ci-border, #e2e8f0);
    border-radius: 6px;
    padding: 2px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    opacity: 1;
    transition: opacity 0.2s ease;
}

.ciw-colour-tab {
    padding: 4px 14px;
    font-size: 0.8125rem;
    font-weight: 500;
    border: none;
    background: transparent;
    color: var(--ci-text-secondary, #64748b);
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s ease;
    font-family: inherit;
}

.ciw-colour-tab.ciw-colour-tab-active {
    background: var(--ci-primary, #0058be);
    color: #fff;
    box-shadow: 0 1px 3px rgba(0, 88, 190, 0.3);
}

.ciw-colour-preview-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: var(--ci-surface, #f8fafc);
    position: relative;
    overflow: hidden;
    min-height: 300px;
    max-height: 560px;
}

.ciw-colour-preview-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 4px;
    transition: filter 0.15s ease;
}

.ciw-colour-zoom-controls {
    position: absolute;
    bottom: 16px;
    right: 16px;
    display: flex;
    gap: 4px;
    background: #323949;
    border: 1px solid var(--ci-border, #e2e8f0);
    border-radius: 8px;
    padding: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.ciw-colour-zoom-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--ci-text-secondary, #64748b);
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.15s ease;
    padding: 0;
}

.ciw-colour-zoom-btn:hover {
    background: var(--ci-surface, #f8fafc);
    color: var(--ci-text-primary, #0f172a);
}

.ciw-colour-image-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    border-top: 1px solid var(--ci-border, #e2e8f0);
    background: var(--ci-surface, #f8fafc);
    font-size: 0.75rem;
    color: var(--ci-text-secondary, #64748b);
}

.ciw-colour-settings-panel {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 24px;
    background: #323949;
    border: 1px solid var(--ci-border, #e2e8f0);
    border-radius: var(--ci-radius-md, 12px);
    overflow-y: auto;
    max-height: 600px;
    scrollbar-width: thin;
    scrollbar-color: var(--ci-primary, #0058be) var(--ci-surface, #f8fafc);
}

.ciw-colour-settings-panel::-webkit-scrollbar {
    width: 6px;
}

.ciw-colour-settings-panel::-webkit-scrollbar-track {
    background: var(--ci-surface, #f8fafc);
    border-radius: 3px;
}

.ciw-colour-settings-panel::-webkit-scrollbar-thumb {
    background: var(--ci-primary, #0058be);
    border-radius: 3px;
}

.ciw-colour-settings-panel::-webkit-scrollbar-thumb:hover {
    background: var(--ci-primary-dark, #004a9c);
}

.ciw-colour-settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.ciw-colour-settings-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--ci-text-primary, #0f172a);
    margin: 0;
}

.ciw-colour-reset-btn {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    font-size: 0.8125rem;
    font-weight: 500;
    font-family: inherit;
    color: var(--ci-text-secondary, #64748b);
    background: var(--ci-surface, #f8fafc);
    border: 1px solid var(--ci-border, #e2e8f0);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.ciw-colour-reset-btn:hover {
    color: var(--ci-primary, #0058be);
    border-color: var(--ci-primary, #0058be);
    background: rgba(0, 88, 190, 0.2);
}

.ciw-colour-control-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.ciw-colour-control-label {
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--ci-text-secondary, #64748b);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.ciw-colour-control-hint {
    font-size: 0.75rem;
    color: var(--ci-text-tertiary, #94a3b8);
}

.ciw-colour-toggle-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
}

.ciw-colour-switch {
    position: relative;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
}

.ciw-colour-switch input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.ciw-colour-switch-slider {
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    transition: background 0.25s ease;
    cursor: pointer;
}

.ciw-colour-switch-slider::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 18px;
    height: 18px;
    background: #fff;
    border-radius: 50%;
    transition: transform 0.25s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

.ciw-colour-switch input:checked + .ciw-colour-switch-slider {
    background: var(--ci-primary, #0058be);
}

.ciw-colour-switch input:checked + .ciw-colour-switch-slider::after {
    transform: translateX(20px);
}

.ciw-colour-toggle-status {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--ci-text-secondary, #64748b);
}

.ciw-colour-slider-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
}

.ciw-colour-filter-slider,
.ciw-colour-quality-slider {
    flex: 1;
    height: 6px;
    appearance: none;
    background: var(--ci-border, #e2e8f0);
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

.ciw-colour-filter-slider::-webkit-slider-thumb,
.ciw-colour-quality-slider::-webkit-slider-thumb {
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--ci-primary, #0058be);
    cursor: pointer;
    box-shadow: 0 1px 4px rgba(0, 88, 190, 0.3);
    transition: transform 0.15s ease;
}

.ciw-colour-filter-slider::-webkit-slider-thumb:hover,
.ciw-colour-quality-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.ciw-colour-filter-slider::-moz-range-thumb,
.ciw-colour-quality-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--ci-primary, #0058be);
    cursor: pointer;
    border: none;
    box-shadow: 0 1px 4px rgba(0, 88, 190, 0.3);
}

.ciw-colour-slider-value {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--ci-text-primary, #0f172a);
    min-width: 40px;
    text-align: right;
}

.ciw-colour-format-select {
    width: 100%;
    padding: 10px 36px 10px 14px;
    font-size: 0.875rem;
    font-weight: 500;
    font-family: inherit;
    color: var(--ci-text-primary, #0f172a);
    background-color: var(--ci-surface, #f8fafc);
    border: 1px solid var(--ci-border, #e2e8f0);
    border-radius: 8px;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 13px 13px;
    transition: border-color 0.2s ease;
    box-sizing: border-box;
}

.ciw-colour-format-select:focus {
    outline: none;
    border-color: var(--ci-primary, #0058be);
    box-shadow: 0 0 0 3px rgba(0, 88, 190, 0.15);
}

.ciw-colour-widget option {
    color: #0f172a;
    background: #ffffff;
}

.ciw-colour-convert-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 12px 24px;
    font-size: 0.9375rem;
    font-weight: 600;
    font-family: inherit;
    color: #fff;
    background: var(--ci-primary, #0058be);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s ease, box-shadow 0.2s ease;
    margin-top: 8px;
}

.ciw-colour-convert-btn:hover {
    background: var(--ci-primary-dark, #004a9c);
    box-shadow: 0 4px 12px rgba(0, 88, 190, 0.3);
}

.ciw-colour-convert-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    box-shadow: none;
}

.ciw-colour-cancel-btn {
    width: 100%;
    padding: 10px 24px;
    font-size: 0.875rem;
    font-weight: 500;
    font-family: inherit;
    color: var(--ci-text-secondary, #64748b);
    background: #323949;
    border: 1px solid var(--ci-border, #e2e8f0);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.ciw-colour-cancel-btn:hover {
    color: #fca5a5;
    border-color: rgba(239, 68, 68, 0.5);
    background: rgba(239, 68, 68, 0.1);
}

.ciw-colour-message {
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
}

.ciw-colour-message.is-error {
    background: rgba(239, 68, 68, 0.1);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.ciw-colour-message.is-success {
    background: rgba(34, 197, 94, 0.1);
    color: #86efac;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

@media (max-width: 768px) {
    .ciw-colour-widget {
        background-color: unset;
        border: unset;
        box-shadow: unset;
        padding: 0px;
    }

    .ciw-colour-widget:hover {
        box-shadow: unset;
        }

    .ciw-colour-layout {
        grid-template-columns: 1fr;
    }

    .ciw-colour-settings-panel {
        max-height: none;
    }
}

@media (max-width: 480px) {
    .ciw-colour-image-info {
        background: rgba(255, 255, 255, 0.05);
        font-size: 0.70rem;
    }

    .ciw-colour-preview-container {
        padding: 0px;
        min-height: 200px;
    }

    .ciw-colour-settings-panel {
        padding: 16px;
    }
}