/*
 * CSS Gradient Generator
 * Prefix: cgg-
 * Theme: Indigo / Violet
 */

:root {
    --cgg-primary: #6366f1;
    --cgg-primary-l: #818cf8;
    --cgg-primary-d: #4f46e5;
    --cgg-primary-bg: #eef2ff;
    --cgg-accent: #8b5cf6;
    --cgg-accent-l: #a78bfa;
    --cgg-bg: #f8fafc;
    --cgg-card: #ffffff;
    --cgg-text: #1e293b;
    --cgg-text-m: #64748b;
    --cgg-border: #e2e8f0;
    --cgg-shadow: 0 4px 20px rgba(0, 0, 0, 0.07);
    --cgg-radius: 12px;
    --cgg-radius-s: 8px;
}

#pageWrap {
    background-color: transparent !important;
}

.cgg-container {
    width: 100%;
    margin: 40px auto;
    font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', sans-serif;
    color: var(--cgg-text);
}

/* ═══════════════════════════════════════
   Main Tabs
   ═══════════════════════════════════════ */
.cgg-tabs {
    display: flex;
    gap: 4px;
    background: var(--cgg-card);
    border: 1px solid var(--cgg-border);
    border-radius: var(--cgg-radius);
    padding: 4px;
    margin-bottom: 20px;
    box-shadow: var(--cgg-shadow);
}

.cgg-tab {
    flex: 1;
    padding: 10px 16px;
    border: none;
    border-radius: calc(var(--cgg-radius) - 4px);
    background: transparent;
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--cgg-text-m);
    cursor: pointer;
    transition: all 0.18s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.cgg-tab:hover {
    color: var(--cgg-primary);
}

.cgg-tab.active {
    background: var(--cgg-primary);
    color: #fff;
    box-shadow: 0 2px 10px rgba(99, 102, 241, 0.35);
}

.cgg-tab .material-icons {
    font-size: 18px;
}

/* ═══════════════════════════════════════
   Tab Panels
   ═══════════════════════════════════════ */
.cgg-panel {
    display: none;
}

.cgg-panel.active {
    display: block;
}

/* ═══════════════════════════════════════
   Shared: Card
   ═══════════════════════════════════════ */
.cgg-card {
    background: var(--cgg-card);
    border: 1px solid var(--cgg-border);
    border-radius: var(--cgg-radius);
    box-shadow: var(--cgg-shadow);
    padding: 24px;
    margin-bottom: 16px;
}

/* ═══════════════════════════════════════
   Preview Box
   ═══════════════════════════════════════ */
.cgg-preview-wrap {
    position: relative;
    margin-bottom: 20px;
}

.cgg-preview {
    width: 100%;
    height: 200px;
    border-radius: var(--cgg-radius-s);
    border: 1px solid var(--cgg-border);
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
    transition: background 0.2s;
}

.cgg-preview-actions {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    justify-content: flex-end;
}

.cgg-preview-btn {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 7px 14px;
    border: 1px solid var(--cgg-border);
    border-radius: var(--cgg-radius-s);
    background: var(--cgg-bg);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--cgg-text-m);
    cursor: pointer;
    transition: all 0.15s;
}

.cgg-preview-btn:hover {
    background: var(--cgg-primary);
    border-color: var(--cgg-primary);
    color: #fff;
}

.cgg-preview-btn .material-icons {
    font-size: 15px;
}

/* Full-screen overlay */
.cgg-fullscreen {
    position: fixed;
    inset: 0;
    z-index: 9990;
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.cgg-fullscreen.visible {
    display: flex;
}

.cgg-fullscreen-bg {
    position: absolute;
    inset: 0;
}

.cgg-fullscreen-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.25);
    border: none;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #fff;
    font-size: 22px;
    backdrop-filter: blur(8px);
    z-index: 1;
    transition: background 0.15s;
}

.cgg-fullscreen-close:hover {
    background: rgba(255, 255, 255, 0.4);
}

/* ═══════════════════════════════════════
   Gradient Type Toggle
   ═══════════════════════════════════════ */
.cgg-type-row {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}

.cgg-type-btn {
    flex: 1;
    padding: 8px 12px;
    border: 2px solid var(--cgg-border);
    border-radius: var(--cgg-radius-s);
    background: var(--cgg-bg);
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--cgg-text-m);
    cursor: pointer;
    transition: all 0.15s;
}

.cgg-type-btn.active {
    border-color: var(--cgg-primary);
    background: var(--cgg-primary-bg);
    color: var(--cgg-primary-d);
}

/* ═══════════════════════════════════════
   Color Stop Bar
   ═══════════════════════════════════════ */
.cgg-stop-bar-section {
    margin-bottom: 20px;
}

.cgg-stop-bar-label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--cgg-text-m);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin-bottom: 8px;
}

.cgg-stop-bar-wrap {
    position: relative;
    height: 36px;
    cursor: crosshair;
    user-select: none;
}

.cgg-stop-bar-track {
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    height: 20px;
    border-radius: 99px;
    border: 1px solid var(--cgg-border);
    overflow: hidden;
    cursor: crosshair;
}

.cgg-stop-handle {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 3px solid #fff;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.30);
    cursor: grab;
    z-index: 2;
    transition: box-shadow 0.1s;
}

.cgg-stop-handle:active {
    cursor: grabbing;
}

.cgg-stop-handle.selected {
    box-shadow: 0 0 0 3px var(--cgg-primary), 0 2px 6px rgba(0, 0, 0, 0.30);
}

.cgg-stop-add-hint {
    font-size: 0.72rem;
    color: var(--cgg-text-m);
    margin-top: 6px;
    text-align: center;
}

/* ═══════════════════════════════════════
   Color Picker Panel
   ═══════════════════════════════════════ */
.cgg-picker-section {
    background: var(--cgg-bg);
    border: 1px solid var(--cgg-border);
    border-radius: var(--cgg-radius-s);
    padding: 16px;
    margin-top: 12px;
}

.cgg-picker-title {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--cgg-primary);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin: 0 0 12px;
}

.cgg-picker-swatch {
    width: 100%;
    height: 40px;
    border-radius: 6px;
    border: 1px solid var(--cgg-border);
    margin-bottom: 12px;
    transition: background 0.1s;
}

.cgg-picker-hex-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.cgg-picker-hex-row label {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--cgg-text-m);
    width: 36px;
    flex-shrink: 0;
}

.cgg-picker-hex {
    flex: 1;
    font-size: 0.82rem;
    font-family: 'Consolas', 'Courier New', monospace;
    padding: 5px 10px;
    border: 1px solid var(--cgg-border);
    border-radius: 5px;
    background: var(--cgg-card);
    color: var(--cgg-text);
    outline: none;
    transition: border-color 0.15s;
}

.cgg-picker-hex:focus {
    border-color: var(--cgg-primary);
}

.cgg-picker-delete {
    background: transparent;
    border: 1px solid var(--cgg-border);
    border-radius: 5px;
    padding: 5px 8px;
    cursor: pointer;
    color: #ef4444;
    font-size: 0.75rem;
    font-weight: 600;
    transition: all 0.15s;
    white-space: nowrap;
}

.cgg-picker-delete:hover {
    background: #fef2f2;
    border-color: #ef4444;
}

.cgg-slider-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}

.cgg-slider-row label {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--cgg-text-m);
    width: 24px;
    flex-shrink: 0;
    text-align: center;
}

.cgg-slider {
    flex: 1;
    height: 4px;
    border-radius: 99px;
    cursor: pointer;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.cgg-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--cgg-primary);
    border: 2px solid #fff;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
    cursor: pointer;
}

.cgg-slider-val {
    font-size: 0.72rem;
    font-family: 'Consolas', monospace;
    color: var(--cgg-text-m);
    width: 36px;
    text-align: right;
    flex-shrink: 0;
}

/* Hue slider */
.cgg-slider-h {
    background: linear-gradient(to right,
            hsl(0, 100%, 50%), hsl(30, 100%, 50%), hsl(60, 100%, 50%),
            hsl(90, 100%, 50%), hsl(120, 100%, 50%), hsl(150, 100%, 50%),
            hsl(180, 100%, 50%), hsl(210, 100%, 50%), hsl(240, 100%, 50%),
            hsl(270, 100%, 50%), hsl(300, 100%, 50%), hsl(330, 100%, 50%),
            hsl(360, 100%, 50%));
}

/* Alpha slider */
.cgg-slider-a {
    background: repeating-linear-gradient(45deg,
            #ccc 0px, #ccc 4px, #fff 4px, #fff 8px);
}

/* ═══════════════════════════════════════
   Angle / Position Controls
   ═══════════════════════════════════════ */
.cgg-ctrl-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}

.cgg-ctrl-label {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--cgg-text-m);
    width: 72px;
    flex-shrink: 0;
}

.cgg-radial-pos-grid {
    display: grid;
    grid-template-columns: repeat(3, 36px);
    gap: 4px;
}

.cgg-pos-btn {
    width: 36px;
    height: 28px;
    border: 1px solid var(--cgg-border);
    border-radius: 4px;
    background: var(--cgg-bg);
    font-size: 0.65rem;
    color: var(--cgg-text-m);
    cursor: pointer;
    transition: all 0.1s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cgg-pos-btn.active {
    background: var(--cgg-primary);
    border-color: var(--cgg-primary);
    color: #fff;
}

.cgg-shape-btns {
    display: flex;
    gap: 6px;
}

.cgg-shape-btn {
    padding: 5px 12px;
    border: 1px solid var(--cgg-border);
    border-radius: 5px;
    background: var(--cgg-bg);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--cgg-text-m);
    cursor: pointer;
    transition: all 0.15s;
}

.cgg-shape-btn.active {
    background: var(--cgg-primary);
    border-color: var(--cgg-primary);
    color: #fff;
}

/* ═══════════════════════════════════════
   Code Output
   ═══════════════════════════════════════ */
.cgg-code-section {
    margin-top: 4px;
}

.cgg-code-label {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--cgg-text-m);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin-bottom: 6px;
}

.cgg-code-block {
    font-size: 0.82rem;
    font-family: 'Consolas', 'Courier New', monospace;
    background: var(--cgg-bg);
    border: 1px solid var(--cgg-border);
    border-radius: var(--cgg-radius-s);
    padding: 14px 16px;
    white-space: pre-wrap;
    word-break: break-all;
    color: var(--cgg-text);
    line-height: 1.7;
    min-height: 48px;
}

.cgg-copy-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 8px;
    padding: 9px 18px;
    border: none;
    border-radius: var(--cgg-radius-s);
    background: var(--cgg-primary);
    color: #fff;
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s, transform 0.1s;
}

.cgg-copy-btn:hover {
    background: var(--cgg-primary-d);
}

.cgg-copy-btn:active {
    transform: scale(0.97);
}

.cgg-copy-btn .material-icons {
    font-size: 16px;
}

/* ═══════════════════════════════════════
   Pattern Panel
   ═══════════════════════════════════════ */
.cgg-pattern-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-bottom: 20px;
}

.cgg-pattern-card {
    border: 2px solid var(--cgg-border);
    border-radius: var(--cgg-radius-s);
    overflow: hidden;
    cursor: pointer;
    transition: border-color 0.15s, transform 0.15s;
}

.cgg-pattern-card:hover {
    transform: translateY(-2px);
    border-color: var(--cgg-primary-l);
}

.cgg-pattern-card.active {
    border-color: var(--cgg-primary);
}

.cgg-pattern-thumb {
    height: 60px;
}

.cgg-pattern-name {
    padding: 5px 6px;
    font-size: 0.68rem;
    font-weight: 600;
    color: var(--cgg-text-m);
    text-align: center;
    background: var(--cgg-bg);
    border-top: 1px solid var(--cgg-border);
}

.cgg-pattern-ctrl-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 16px;
}

.cgg-pattern-color-row {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.cgg-pattern-color-label {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--cgg-text-m);
}

.cgg-pattern-color-input {
    display: flex;
    align-items: center;
    gap: 8px;
}

.cgg-color-swatch-input {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid var(--cgg-border);
    cursor: pointer;
    padding: 0;
    background: none;
    flex-shrink: 0;
    -webkit-appearance: none;
    overflow: hidden;
}

.cgg-color-swatch-input::-webkit-color-swatch-wrapper {
    padding: 0;
}

.cgg-color-swatch-input::-webkit-color-swatch {
    border: none;
    border-radius: 50%;
}

.cgg-color-hex-input {
    flex: 1;
    font-size: 0.8rem;
    font-family: 'Consolas', monospace;
    padding: 5px 8px;
    border: 1px solid var(--cgg-border);
    border-radius: 5px;
    outline: none;
    transition: border-color 0.15s;
}

.cgg-color-hex-input:focus {
    border-color: var(--cgg-primary);
}

/* ═══════════════════════════════════════
   Preset Panel
   ═══════════════════════════════════════ */
.cgg-preset-section-title {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--cgg-text-m);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin: 0 0 10px;
    padding-top: 16px;
    border-top: 1px solid var(--cgg-border);
}

.cgg-preset-section-title:first-child {
    border-top: none;
    padding-top: 0;
}

.cgg-preset-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-bottom: 14px;
}

.cgg-preset-card {
    border-radius: var(--cgg-radius-s);
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}

.cgg-preset-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
    border-color: var(--cgg-primary-l);
}

.cgg-preset-thumb {
    height: 56px;
}

.cgg-preset-name {
    padding: 5px 6px;
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--cgg-text-m);
    text-align: center;
    background: var(--cgg-bg);
    border-top: 1px solid var(--cgg-border);
}

/* ═══════════════════════════════════════
   Toast
   ═══════════════════════════════════════ */
.cgg-toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--cgg-text);
    color: #fff;
    padding: 11px 22px;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 600;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 9999;
    pointer-events: none;
    white-space: nowrap;
}

.cgg-toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
    visibility: visible;
}

/* ═══════════════════════════════════════
   SEO Content
   ═══════════════════════════════════════ */
.cgg-seo {
    margin-top: 52px;
}

.cgg-seo-section {
    margin-bottom: 32px;
}

.cgg-seo-section h2 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--cgg-text);
    border-left: 4px solid var(--cgg-primary);
    padding-left: 12px;
    margin: 0 0 12px;
}

.cgg-seo-section p,
.cgg-seo-section li {
    font-size: 0.92rem;
    color: var(--cgg-text-m);
    line-height: 1.85;
}

.cgg-seo-section ul,
.cgg-seo-section ol {
    padding-left: 1.4em;
    margin: 8px 0;
}

.cgg-compare-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
    margin-top: 10px;
}

.cgg-compare-table th,
.cgg-compare-table td {
    padding: 10px 14px;
    border: 1px solid var(--cgg-border);
    text-align: left;
}

.cgg-compare-table th {
    background: var(--cgg-primary-bg);
    color: var(--cgg-primary-d);
    font-weight: 700;
}

.cgg-compare-table tr:nth-child(even) td {
    background: var(--cgg-bg);
}

/* ═══════════════════════════════════════
   Responsive
   ═══════════════════════════════════════ */
@media (max-width: 900px) {
    .cgg-pattern-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .cgg-preset-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .cgg-pattern-ctrl-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .cgg-tabs {
        flex-direction: column;
    }

    .cgg-type-row {
        flex-wrap: wrap;
    }

    .cgg-pattern-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cgg-preset-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}