/* ── Image Grid Maker ─────────────────────────────────────── */
/* Prefix: igm-   Accent: #8B5CF6 */

:root {
    --igm-accent: #8B5CF6;
    --igm-surface: #FFFFFF;
    --igm-border:  rgba(139, 92, 246, 0.12);
}

.igm-section {
    padding: 40px 0 80px;
}

/* ── Upload zone ────────────────────────────────────── */
.igm-upload-zone {
    border: 2px dashed rgba(139, 92, 246, .35);
    border-radius: 16px;
    background: rgba(139, 92, 246, .04);
    padding: 56px 24px;
    text-align: center;
    cursor: pointer;
    transition: border-color .2s, background .2s;
    outline: none;
    margin-bottom: 28px;
}

.igm-upload-zone:hover,
.igm-upload-zone:focus,
.igm-upload-zone.igm-drag-over {
    border-color: var(--igm-accent);
    background: rgba(139, 92, 246, .08);
}

.igm-upload-icon {
    font-size: 3rem;
    color: var(--igm-accent);
    opacity: .7;
    margin-bottom: 14px;
    display: block;
}

.igm-upload-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 6px;
}

.igm-upload-sub {
    font-size: 1rem;
    color: var(--text-secondary);
    margin: 0;
}

/* ── Workspace grid ─────────────────────────────────── */
.igm-workspace {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 1.5rem;
    align-items: start;
}

/* ── Left panel ─────────────────────────────────────── */
.igm-left {
    background: var(--igm-surface);
    border: 1px solid var(--igm-border);
    border-radius: 14px;
    overflow: hidden;
}

.igm-ctrl-group {
    padding: 14px 18px;
    border-bottom: 1px solid var(--igm-border);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.igm-ctrl-group:last-child {
    border-bottom: none;
}

.igm-ctrl-group--actions {
    gap: 8px;
}

.igm-ctrl-label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: .05em;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.igm-val-badge {
    display: inline-block;
    background: rgba(139, 92, 246, .15);
    color: var(--igm-accent);
    border-radius: 4px;
    padding: 1px 7px;
    font-size: 0.8125rem;
    font-family: monospace;
    text-transform: none;
    letter-spacing: 0;
}

.igm-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: rgba(139, 92, 246, .2);
    outline: none;
    cursor: pointer;
}

.igm-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--igm-accent);
    border: 2px solid #fff;
    box-shadow: 0 1px 4px rgba(0, 0, 0, .4);
    cursor: pointer;
}

/* ── Quick Presets ───────────────────────────────────── */
.igm-presets {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}

.igm-preset-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 9px 10px;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 700;
    cursor: pointer;
    border: 1px solid rgba(139, 92, 246, 0.3);
    background: rgba(139, 92, 246, 0.04);
    color: var(--text-primary);
    transition: all .18s;
    letter-spacing: .03em;
}

.igm-preset-btn:hover {
    border-color: var(--igm-accent);
    color: var(--igm-accent);
    background: rgba(139, 92, 246, .08);
}

.igm-preset-btn.active {
    background: rgba(139, 92, 246, .18);
    border-color: var(--igm-accent);
    color: var(--igm-accent);
    box-shadow: inset 0 0 0 1px rgba(139, 92, 246, .3);
}

/* ── Line style tabs ────────────────────────────────── */
.igm-style-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 6px;
}

.igm-style-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 7px 6px;
    border-radius: 7px;
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid var(--igm-border);
    background: transparent;
    color: var(--text-secondary);
    transition: all .18s;
}

.igm-style-btn:hover {
    border-color: var(--igm-accent);
    color: var(--igm-accent);
}

.igm-style-btn.active {
    background: rgba(139, 92, 246, .18);
    border-color: var(--igm-accent);
    color: var(--igm-accent);
}

/* ── Checkbox ───────────────────────────────────────── */
.igm-check-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.igm-check-label input {
    accent-color: var(--igm-accent);
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

/* ── Color swatches ─────────────────────────────────── */
.igm-swatches {
    display: flex;
    gap: 7px;
    flex-wrap: wrap;
}

.igm-swatch {
    width: 30px;
    height: 30px;
    border-radius: 6px;
    border: 2px solid rgba(255, 255, 255, .75);
    cursor: pointer;
    transition: transform .15s, border-color .15s, box-shadow .15s;
    flex-shrink: 0;
    outline: none;
    box-shadow: 0 0 0 1px rgba(0, 0, 0, .6);
}

.igm-swatch:hover {
    transform: scale(1.15);
    border-color: #fff;
}

.igm-swatch--active {
    border-color: var(--igm-accent);
    box-shadow: 0 0 0 2px rgba(139, 92, 246, .5);
}

.igm-color-input {
    width: 40px;
    height: 34px;
    border: 1px solid var(--igm-border);
    border-radius: 6px;
    cursor: pointer;
    padding: 2px;
    background: transparent;
}

/* ── Buttons ─────────────────────────────────────────── */
.igm-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: .55rem 1rem;
    border-radius: 8px;
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all .2s;
    width: 100%;
}

.igm-btn--primary {
    background: var(--igm-accent);
    color: #fff;
}

.igm-btn--primary:hover {
    filter: brightness(1.1);
}

.igm-btn--ghost {
    background: transparent;
    border-color: var(--igm-border);
    color: var(--text-secondary);
}

.igm-btn--ghost:hover {
    border-color: var(--igm-accent);
    color: var(--igm-accent);
}

.igm-btn--dl {
    background: var(--igm-accent);
    color: #fff;
    border-color: var(--igm-accent);
    font-size: 0.875rem;
    padding: 8px 14px;
    width: 100%;
}

.igm-btn--dl:hover {
    background: #7C3AED;
    border-color: #7C3AED;
}

/* ── Download section ─────────────────────────────────── */
.igm-download-section {
    padding: 14px 18px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-top: 1px solid var(--igm-border);
}

.igm-download-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: .06em;
    margin: 0;
}

.igm-download-btns {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

/* ── Right panel ────────────────────────────────────── */
.igm-right {
    background: var(--igm-surface);
    border: 1px solid var(--igm-border);
    border-radius: 14px;
    overflow: hidden;
    position: sticky;
    top: 80px;
    display: flex;
    flex-direction: column;
}

.igm-canvas-area {
    background:
        radial-gradient(circle, rgba(139, 92, 246, .06) 1px, transparent 1px);
    background-size: 20px 20px;
    background-color: rgba(0, 0, 0, .25);
    min-height: 420px;
    max-height: 520px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 24px;
    flex: 1;
}

.igm-canvas {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
    box-shadow: 0 4px 20px rgba(0, 0, 0, .12);
    user-select: none;
}

/* ── Canvas toolbar ───────────────────────────────────── */
.igm-canvas-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    border-top: 1px solid var(--igm-border);
    background: var(--igm-surface);
    gap: 10px;
    flex-wrap: wrap;
    flex-shrink: 0;
}

.igm-canvas-hint {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 5px;
    white-space: nowrap;
}

.igm-toolbar-btns {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
    flex-wrap: wrap;
}

.igm-canvas-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid rgba(139, 92, 246, .25);
    background: transparent;
    color: var(--text-secondary);
    transition: all .18s;
    white-space: nowrap;
}

.igm-canvas-btn:hover {
    border-color: var(--igm-accent);
    color: var(--igm-accent);
    background: rgba(139, 92, 246, .08);
}

.igm-canvas-btn--accent {
    background: rgba(139, 92, 246, .12);
    color: var(--igm-accent);
    border-color: rgba(139, 92, 246, .35);
}

.igm-canvas-btn--accent:hover {
    background: var(--igm-accent);
    color: #fff;
}

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 768px) {
    .igm-workspace {
        grid-template-columns: 1fr;
    }

    .igm-right {
        position: static;
        order: -1;
    }

    .igm-canvas-area {
        min-height: 260px;
        max-height: 360px;
    }
}