/* ==========================================================================
Panel Styles
========================================================================== */

.panel {
    background-color: var(--color-bg-control-surface);
    padding: 15px;
    border-radius: var(--radius-global);
    box-shadow: 0 2px 5px hsl(0 0% 0% / 0.1);
    display: flex;
    flex-direction: column;
    gap: 15px;
    border: 1px solid var(--color-border-control-surface);
}

.panel h2 {
    margin: 0 0 10px 0;
    color: var(--color-text-page);
    font-size: 1.2em;
    text-align: center;
}

#color-theory-panel {
    align-items: center;
}

/* Picker Panel Header */
.picker-header {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    margin-bottom: 15px;
    padding: 0 5px;
    position: relative;
    gap: 15px;
}

.picker-header h2 {
    margin: 0;
    font-size: 1.2em;
    color: var(--color-text-page);
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

#app-version {
    font-size: 0.8em;
    color: var(--color-text-page-secondary);
}

.palette-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 10px;
}

.palette-controls .slider-value-input {
    width: auto;
}

/* OKLCH Info Panel */
#oklchInfoPanel {
    display: none;
    text-align: center;
    padding-top: 10px;
}

#oklchInfoPanel.visible {
    display: block;
}

/* Color Output Panel */
#colorOutput {
    background-color: var(--color-bg-input-darker);
    border-radius: var(--radius-global);
    color: var(--color-text-page-secondary);
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 8px 12px;
    margin-top: 15px;
    padding: 10px 15px;
    width: 100%;
}

.output-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.output-separator {
    color: var(--color-text-inactive);
}

.output-group strong {
    color: var(--color-text-page);
    font-weight: 600;
}

.output-group span {
    font-family: "Source Code Pro", Consolas, "Courier New", Courier, monospace;
    word-break: break-all;
    text-align: left;
    font-size: 0.92em;
}

.export-controls {
    align-items: center;
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 20px;
}

/* Popup / Modal for Info */
.popup-overlay {
    position: fixed;
    inset: 0;
    background-color: hsla(0, 0%, 0%, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0s 0.3s;
}

.popup-overlay.visible {
    opacity: 1;
    visibility: visible;
    transition-delay: 0s;
}

.popup-content {
    background-color: var(--color-accent-main);
    color: var(--color-text-on-accent);
    padding: 20px 30px;
    border-radius: var(--radius-global);
    max-width: 600px;
    position: relative;
    box-shadow: 0 5px 15px hsla(0, 0%, 0%, 0.4);
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.popup-overlay.visible .popup-content {
    transform: scale(1);
}

.popup-content ul {
    padding-left: 20px;
    text-align: left;
}

.popup-content li {
    margin-bottom: 0.5em;
}

.popup-content p {
    text-align: left;
}

.popup-close-btn {
    position: absolute;
    top: 5px;
    right: 10px;
    background: none;
    border: none;
    font-size: 2.2em;
    font-weight: bold;
    color: var(--color-text-on-accent);
    cursor: pointer;
    line-height: 1;
    padding: 5px;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.popup-close-btn:hover {
    opacity: 1;
}

/* Diagnostics Panel */
#diagnostics-panel {
    background-color: var(--color-bg-input-darker);
    border-color: var(--color-border-input);
    display: none;
}

#diagnostics-output {
    background-color: var(--color-bg-page);
    color: var(--color-text-page-secondary);
    font-family: "Source Code Pro", Menlo, Consolas, Monaco, "Liberation Mono", "Lucida Console", monospace;
    font-size: 0.8em;
    padding: 10px;
    border-radius: var(--radius-global);
    white-space: pre-wrap;
    word-break: break-all;
    line-height: 1.4;
}