/* ==========================================================================
   Advanced CSS Gradient Generator Styling
   ========================================================================== */

.wp-adv-gradient-generator *, 
.wp-adv-gradient-generator *::before, 
.wp-adv-gradient-generator *::after {
    box-sizing: border-box;
}

:root {
    --gg-bg-light: #F0F2F5;
    --gg-bg-panel: #FFFFFF;
    --gg-header-bg: #1A1A1A;
    --gg-neon-green: #39FF14;
    --gg-neon-dark: #111111;
    --gg-text-muted: #666666;
    --gg-border: #E4E6EB;
}

/* Fullscreen Layout Overrides for Embedding */
.wp-adv-gradient-generator {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--gg-bg-light);
    color: #333333;
    display: flex;
    flex-direction: column;
    width: 100%;
    min-height: calc(100vh - 40px);
    margin: 0 auto;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

/* Header Bar Styling */
.gg-header-bar {
    background-color: var(--gg-header-bg);
    color: #FFFFFF;
    padding: 18px 20px;
    text-align: center;
    border-bottom: 3px solid var(--gg-neon-green);
}

.gg-header-bar h1 {
    margin: 0;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: #FFFFFF !important;
}

/* App Content Structural Split */
.gg-app-container {
    display: flex;
    flex: 1;
    width: 100%;
}

@media (max-width: 900px) {
    .gg-app-container {
        flex-direction: column;
    }
}

/* Left Panel: Control Interface */
.gg-controls-panel {
    width: 420px;
    background-color: var(--gg-bg-panel);
    padding: 24px;
    border-right: 1px solid var(--gg-border);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

@media (max-width: 900px) {
    .gg-controls-panel {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--gg-border);
    }
}

/* Control Blocks Structure */
.gg-section {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.gg-section-title {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #444444;
}

.gg-hint {
    font-size: 11px;
    text-transform: none;
    color: var(--gg-text-muted);
}

.gg-label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.gg-label-row span {
    font-size: 12px;
    font-weight: bold;
    background: #E4E6EB;
    padding: 2px 6px;
    border-radius: 4px;
}

.style-margin-top {
    margin-top: 10px;
}

/* Forms & Sliders Styling */
.gg-type-toggle {
    display: flex;
    border: 1px solid var(--gg-border);
    border-radius: 6px;
    overflow: hidden;
}

.gg-type-btn {
    flex: 1;
    background: #F8F9FA;
    border: none;
    padding: 10px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.gg-type-btn:not(:last-child) {
    border-right: 1px solid var(--gg-border);
}

.gg-type-btn.active {
    background-color: var(--gg-header-bg);
    color: #FFFFFF;
}

input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    background: #E4E6EB;
    border-radius: 3px;
    outline: none;
    margin: 8px 0;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--gg-header-bg);
    cursor: pointer;
    transition: transform 0.1s;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

/* Interactive Color Stops Track */
.gg-stop-slider-container {
    position: relative;
    height: 40px;
    margin: 10px 0;
    background: #F8F9FA;
    border: 1px solid var(--gg-border);
    border-radius: 6px;
    padding: 0 10px;
}

.gg-stop-track {
    position: relative;
    width: 100%;
    height: 14px;
    top: 12px;
    border-radius: 4px;
    background: #E4E6EB;
    cursor: pointer;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.1);
}

.gg-color-stop-marker {
    position: absolute;
    width: 16px;
    height: 24px;
    top: -5px;
    margin-left: -8px;
    cursor: grab;
    background: #FFFFFF;
    border: 2px solid var(--gg-header-bg);
    border-radius: 3px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.gg-color-stop-marker.active {
    border-color: var(--gg-neon-green);
    transform: scale(1.1);
}

.gg-color-stop-marker-inner {
    width: 100%;
    height: 8px;
    border-bottom: 1px solid #CCCCCC;
}

/* Selected Stop Context Controls */
.gg-active-stop-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #F8F9FA;
    padding: 8px 12px;
    border-radius: 6px;
    border: 1px solid var(--gg-border);
    margin-top: 5px;
}

.gg-control-inline {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 500;
}

input[type="color"] {
    -webkit-appearance: none;
    border: 1px solid var(--gg-border);
    width: 40px;
    height: 28px;
    border-radius: 4px;
    cursor: pointer;
    background: none;
    padding: 0;
}

input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 3px;
}

.gg-danger-btn {
    background: #FFEBEB;
    color: #D9383A;
    border: 1px solid #FFC1C1;
    padding: 5px 10px;
    font-size: 12px;
    border-radius: 4px;
    cursor: pointer;
}

.gg-danger-btn:hover {
    background: #FAD4D4;
}

/* Utilities Matrix Grid */
.gg-utils-grid {
    display: grid;
    grid-template-columns: 1.2s 1fr 1fr;
    grid-auto-flow: column;
    gap: 8px;
}

.gg-util-btn {
    background: #F8F9FA;
    border: 1px solid var(--gg-border);
    padding: 8px;
    font-size: 12px;
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s;
}

.gg-util-btn:hover:not(:disabled) {
    background: #E4E6EB;
}

.gg-util-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Presets Matrix */
.gg-presets-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.gg-preset-card {
    height: 45px;
    border-radius: 6px;
    cursor: pointer;
    border: 1px solid var(--gg-border);
    transition: transform 0.15s;
}

.gg-preset-card:hover {
    transform: scale(1.05);
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

/* Right Panel: Preview Area & Output Window */
.gg-preview-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 24px;
    background-color: var(--gg-bg-light);
    gap: 20px;
}

.gg-preview-canvas {
    flex: 1;
    min-height: 300px;
    border-radius: 8px;
    box-shadow: inset 0 0 0 1px rgba(0,0,0,0.05);
    background-image: linear-gradient(45deg, #E4E6EB 25%, transparent 25%), 
                      linear-gradient(-45deg, #E4E6EB 25%, transparent 25%), 
                      linear-gradient(45deg, transparent 75%, #E4E6EB 75%), 
                      linear-gradient(-45deg, transparent 75%, #E4E6EB 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0;
    position: relative;
}

.gg-export-box {
    background: #FFFFFF;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--gg-border);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.gg-export-box textarea {
    width: 100%;
    height: 75px;
    font-family: monospace;
    font-size: 12px;
    padding: 10px;
    border: 1px solid var(--gg-border);
    border-radius: 6px;
    background: #F8F9FA;
    resize: none;
    color: #444444;
}

/* Premium Primary Neon Action Buttons */
.gg-action-buttons {
    display: flex;
    gap: 12px;
}

.gg-btn-primary {
    flex: 1;
    background-color: var(--gg-neon-green);
    color: var(--gg-neon-dark);
    border: none;
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    box-shadow: 0 3px 6px rgba(57, 255, 20, 0.2);
}

.gg-btn-primary:hover {
    background-color: #2eff00;
    transform: translateY(-1px);
}

.gg-btn-primary:active {
    transform: translateY(1px);
}

.hidden {
    display: none !important;
}