/* Pull in common stylesheet */
@import url("common.css");

/* QR Code Generator Styles */

/* Main Layout Wrapper — mobile-first: preview, then controls, then actions last */
.generator-layout {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-areas:
        "preview"
        "controls"
        "actions";
    gap: 40px;
    margin-top: 32px;
    margin-bottom: 64px;
}

.preview-panel {
    grid-area: preview;
    display: flex;
    flex-direction: column;
}

.controls {
    grid-area: controls;
    width: 100%;
    margin-bottom: 0;
}

.control-row {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 24px;
}

.control-row>label:first-child {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-default-secondary);
}

.control-row input[type="text"] {
    width: 100%;
    padding: 10px 12px;
    border: 2px solid var(--color-border-default);
    border-radius: 8px;
    font-size: 0.95rem;
    transition: border-color 0.2s;
    font-family: var(--font-default-body), sans-serif;
    background-color: var(--color-background-white);
}

.control-row input[type="text"]:focus {
    outline: none;
    border-color: var(--color-brand-primary);
}

.logo-upload-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
}

/* Segmented shape picker (module shape / corner shape) */
.shape-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.shape-option {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 8px;
    background: var(--color-background-default-secondary);
    border: 1px solid var(--color-border-default);
    cursor: pointer;
    transition: all 0.2s;
    user-select: none;
    color: var(--color-text-default-primary);
}

.shape-option svg {
    display: block;
}

.shape-option input {
    display: none;
}

.shape-option:has(input:checked) {
    background: var(--color-brand-primary);
    border-color: var(--color-brand-primary);
    color: var(--color-background-white);
}

.shape-option:hover {
    border-color: var(--color-brand-primary);
}

/* Color pickers */
.color-picker-group {
    display: flex;
    gap: 24px;
}

.color-picker {
    display: flex;
    align-items: center;
    gap: 8px;
}

.color-picker label {
    font-size: 0.85rem;
    color: var(--color-text-default-secondary);
}

.color-picker input[type="color"] {
    appearance: none;
    -webkit-appearance: none;
    width: 32px;
    height: 32px;
    padding: 0;
    border: 1px solid var(--color-border-default);
    border-radius: 8px;
    cursor: pointer;
    background: none;
    overflow: hidden;
    transition: box-shadow 0.2s, border-color 0.2s, opacity 0.2s;
}

.color-picker input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
    border-radius: 7px;
    overflow: hidden;
}

.color-picker input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 7px;
}

.color-picker input[type="color"]::-moz-color-swatch {
    border: none;
    border-radius: 7px;
}

/* Background swatch group: solid color vs. transparent, as a clear either/or */
.bg-swatch-group {
    display: flex;
    gap: 6px;
}

.color-picker input[type="color"].active,
.bg-transparent-swatch.active {
    border-color: var(--color-brand-primary);
    box-shadow: 0 0 0 2px var(--color-background-white), 0 0 0 4px var(--color-brand-primary);
    opacity: 1;
}

/* Shared checkerboard pattern — used for the transparent swatch and the QR preview
   card when transparent background is selected, so "transparent" always looks the same. */
.checkerboard-bg {
    --tile: 8px;
    background-color: #ffffff;
    background-image:
        linear-gradient(45deg, #ccc 25%, transparent 25%),
        linear-gradient(-45deg, #ccc 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #ccc 75%),
        linear-gradient(-45deg, transparent 75%, #ccc 75%);
    background-size: var(--tile) var(--tile);
    background-position:
        0 0,
        0 calc(var(--tile) / 2),
        calc(var(--tile) / 2) calc(var(--tile) / -2),
        calc(var(--tile) / -2) 0;
}

.bg-transparent-swatch {
    width: 32px;
    height: 32px;
    padding: 0;
    border: 1px solid var(--color-border-default);
    border-radius: 8px;
    cursor: pointer;
    transition: box-shadow 0.2s, border-color 0.2s, opacity 0.2s;
}

/* Mutual dimming so it's unambiguous which mode (color vs. transparent) is active.
   Both stay clickable — dimming is visual only, so switching back is always possible. */
.bg-swatch-group:has(input[type="color"].active) .bg-transparent-swatch {
    opacity: 0.4;
}

.bg-swatch-group:has(.bg-transparent-swatch.active) input[type="color"] {
    opacity: 0.4;
}

/* Logo recolor toggle */
.logo-recolor-option {
    display: none;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--color-text-default-secondary);
    cursor: pointer;
    user-select: none;
}

.logo-recolor-option.visible {
    display: flex;
}

.logo-recolor-option input {
    cursor: pointer;
}

/* Action bar (export controls) — last in the flow: format, then download */
.action-bar {
    grid-area: actions;
    display: flex;
    gap: 16px;
    align-items: stretch;
    width: 100%;
    flex-direction: column;
}

.export-select {
    width: 100%;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-default-body), sans-serif;
}

.btn-small {
    padding: 0 12px;
    height: 36px;
    font-size: 0.8rem;
    background: var(--color-background-neutral-light);
    white-space: nowrap;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    color: var(--color-text-default-primary);
}

.btn-primary {
    background-color: var(--color-brand-primary);
    color: var(--color-background-white);
    box-shadow: var(--shadow-sm);
}

.btn-primary:disabled {
    background-color: var(--color-background-disabled);
    color: var(--color-text-disabled);
    box-shadow: none;
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-brand-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

/* QR preview */
.qr-preview-wrapper {
    display: flex;
    justify-content: center;
}

.qr-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background-color: var(--color-background-white);
    border: 1px solid var(--color-border-default);
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
}

.qr-preview.checkerboard-bg {
    --tile: 20px;
}

.qr-preview canvas,
.qr-preview svg {
    max-width: 100%;
    height: auto;
}

@media (min-width: 640px) {
    .action-bar {
        flex-direction: row;
        justify-content: flex-end;
        align-items: center;
    }

    .export-select {
        width: auto;
        max-width: 220px;
    }
}

@media (min-width: 969px) {
    .generator-layout {
        grid-template-columns: 400px 1fr;
        grid-template-areas:
            "controls preview"
            "controls actions";
        gap: 64px;
        align-items: start;
        margin-top: 64px;
    }

    .controls {
        position: sticky;
        top: 120px;
    }

    .qr-preview-wrapper {
        justify-content: flex-end;
    }
}