/**
 * Pixel Stitch Embroidery - Frontend Styles
 * Clean, practical design inspired by Pixel Stitch
 */

/* ===== Variables ===== */
:root {
    --pse-primary: #4D96FF;
    --pse-primary-dark: #3A7BD5;
    --pse-accent: #FF6B6B;
    --pse-bg: #ffffff;
    --pse-bg-alt: #f7f7f7;
    --pse-bg-card: #ffffff;
    --pse-border: #e0e0e0;
    --pse-border-light: #f0f0f0;
    --pse-text: #333333;
    --pse-text-light: #666666;
    --pse-text-muted: #999999;
    --pse-shadow: 0 2px 8px rgba(0,0,0,0.08);
    --pse-shadow-lg: 0 4px 16px rgba(0,0,0,0.12);
    --pse-radius: 8px;
    --pse-radius-sm: 4px;
    --pse-radius-lg: 12px;
    --pse-ai-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --pse-transition: 0.2s ease;
}

/* ===== Reset within container ===== */
.pse-app {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--pse-text);
    background: var(--pse-bg);
    max-width: 1200px;
    margin: 20px auto;
    border-radius: var(--pse-radius-lg);
    box-shadow: var(--pse-shadow-lg);
    overflow: hidden;
    direction: ltr;
    text-align: left;
}

.pse-app * {
    box-sizing: border-box;
}

/* ===== Header ===== */
.pse-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    background: var(--pse-bg-alt);
    border-bottom: 1px solid var(--pse-border);
}

.pse-header-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.pse-logo {
    font-size: 18px;
    font-weight: 700;
    color: var(--pse-primary);
    letter-spacing: -0.5px;
}

.pse-version {
    font-size: 11px;
    color: var(--pse-text-muted);
    background: var(--pse-border-light);
    padding: 2px 6px;
    border-radius: 10px;
}

.pse-header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.pse-save-status {
    font-size: 12px;
    color: var(--pse-text-muted);
    transition: color var(--pse-transition);
}

.pse-save-status.pse-saved {
    color: #4CAF50;
    font-weight: 600;
}

.pse-design-title {
    font-size: 14px;
    padding: 6px 12px;
    border: 1px solid var(--pse-border);
    border-radius: var(--pse-radius-sm);
    background: var(--pse-bg);
    color: var(--pse-text);
    width: 200px;
    outline: none;
    transition: border-color var(--pse-transition);
}

.pse-design-title:focus {
    border-color: var(--pse-primary);
}

/* ===== Toolbar ===== */
.pse-toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--pse-bg);
    border-bottom: 1px solid var(--pse-border);
    flex-wrap: wrap;
}

.pse-toolbar-group {
    display: flex;
    align-items: center;
    gap: 4px;
}

.pse-toolbar-separator {
    width: 1px;
    height: 28px;
    background: var(--pse-border);
    margin: 0 4px;
}

/* Tool buttons */
.pse-tool-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border: 1px solid transparent;
    border-radius: var(--pse-radius-sm);
    background: transparent;
    color: var(--pse-text-light);
    cursor: pointer;
    transition: all var(--pse-transition);
    padding: 0;
}

.pse-tool-btn:hover {
    background: var(--pse-bg-alt);
    border-color: var(--pse-border);
    color: var(--pse-text);
}

.pse-tool-btn.active {
    background: var(--pse-primary);
    color: white;
    border-color: var(--pse-primary-dark);
}

/* Action buttons (undo/redo) */
.pse-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    height: 34px;
    padding: 0 8px;
    border: 1px solid transparent;
    border-radius: var(--pse-radius-sm);
    background: transparent;
    color: var(--pse-text-light);
    cursor: pointer;
    transition: all var(--pse-transition);
    font-size: 12px;
}

.pse-action-btn:hover:not(:disabled) {
    background: var(--pse-bg-alt);
    border-color: var(--pse-border);
}

.pse-action-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.pse-action-btn.pse-active {
    background: var(--pse-primary);
    color: white;
}

/* Color group */
.pse-color-group {
    gap: 8px;
}

.pse-current-color {
    display: flex;
    align-items: center;
    gap: 6px;
}

.pse-color-input {
    width: 34px;
    height: 34px;
    border: 2px solid var(--pse-border);
    border-radius: var(--pse-radius-sm);
    cursor: pointer;
    padding: 2px;
    background: var(--pse-bg);
}

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

.pse-color-input::-webkit-color-swatch {
    border: none;
    border-radius: 2px;
}

.pse-color-hex {
    font-size: 11px;
    font-family: 'Courier New', monospace;
    color: var(--pse-text-muted);
    min-width: 60px;
}

/* Palette */
.pse-palette-grid {
    display: grid;
    grid-template-columns: repeat(12, 22px);
    gap: 2px;
}

.pse-palette-color {
    width: 22px;
    height: 22px;
    border: 2px solid transparent;
    border-radius: 3px;
    cursor: pointer;
    transition: all var(--pse-transition);
    padding: 0;
}

.pse-palette-color:hover {
    transform: scale(1.2);
    border-color: var(--pse-text);
    z-index: 1;
}

.pse-palette-color.active {
    border-color: var(--pse-primary);
    box-shadow: 0 0 0 2px var(--pse-primary);
    transform: scale(1.15);
}

.pse-palette-expand {
    font-size: 11px;
    color: var(--pse-primary);
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px 8px;
}

.pse-palette-expand:hover {
    text-decoration: underline;
}

/* Grid settings */
.pse-grid-settings {
    gap: 8px;
}

.pse-dimension-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--pse-text-light);
}

.pse-dim-input {
    width: 50px;
    padding: 4px 6px;
    border: 1px solid var(--pse-border);
    border-radius: var(--pse-radius-sm);
    font-size: 12px;
    text-align: center;
    outline: none;
}

.pse-dim-input:focus {
    border-color: var(--pse-primary);
}

/* ===== Main Content ===== */
.pse-main {
    display: flex;
    gap: 0;
    min-height: 500px;
}

.pse-editor-panel {
    flex: 1;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 20px;
    background: var(--pse-bg-alt);
    overflow: auto;
}

.pse-canvas-wrapper {
    background: white;
    border-radius: var(--pse-radius);
    box-shadow: var(--pse-shadow);
    padding: 2px;
    display: inline-block;
}

.pse-pixel-canvas {
    display: block;
    cursor: crosshair;
    image-rendering: pixelated;
}

/* ===== Preview Panel ===== */
.pse-preview-panel {
    width: 320px;
    padding: 16px;
    background: var(--pse-bg);
    border-left: 1px solid var(--pse-border);
    overflow-y: auto;
}

.pse-preview-section {
    margin-bottom: 16px;
}

.pse-preview-title {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--pse-text-muted);
    margin: 0 0 8px 0;
    letter-spacing: 0.5px;
}

.pse-preview-2d-wrapper,
.pse-preview-3d-wrapper {
    background: var(--pse-bg-alt);
    border-radius: var(--pse-radius);
    overflow: hidden;
    position: relative;
}

.pse-preview-canvas {
    width: 100%;
    display: block;
}

.pse-fullscreen-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 28px;
    height: 28px;
    border: none;
    border-radius: var(--pse-radius-sm);
    background: rgba(255,255,255,0.9);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--pse-transition);
}

.pse-preview-3d-wrapper:hover .pse-fullscreen-btn {
    opacity: 1;
}

/* Stitch selector */
.pse-stitch-selector {
    margin-bottom: 16px;
}

.pse-stitch-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--pse-text-muted);
    margin: 0 0 6px 0;
}

.pse-stitch-buttons {
    display: flex;
    gap: 4px;
}

.pse-stitch-btn {
    flex: 1;
    padding: 6px 4px;
    border: 1px solid var(--pse-border);
    border-radius: var(--pse-radius-sm);
    background: var(--pse-bg);
    font-size: 11px;
    cursor: pointer;
    transition: all var(--pse-transition);
    color: var(--pse-text-light);
}

.pse-stitch-btn:hover {
    border-color: var(--pse-primary);
    color: var(--pse-primary);
}

.pse-stitch-btn.active {
    background: var(--pse-primary);
    color: white;
    border-color: var(--pse-primary-dark);
}

/* Color count */
.pse-color-count {
    font-size: 13px;
    color: var(--pse-text-light);
    padding: 8px 0;
}

/* ===== Action Bar ===== */
.pse-action-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    background: var(--pse-bg-alt);
    border-top: 1px solid var(--pse-border);
    flex-wrap: wrap;
    gap: 8px;
}

.pse-action-group {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

/* Buttons */
.pse-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid var(--pse-border);
    border-radius: var(--pse-radius-sm);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--pse-transition);
    background: var(--pse-bg);
    color: var(--pse-text);
    line-height: 1;
}

.pse-btn:hover {
    border-color: var(--pse-text-light);
}

.pse-btn-primary {
    background: var(--pse-primary);
    color: white;
    border-color: var(--pse-primary-dark);
}

.pse-btn-primary:hover {
    background: var(--pse-primary-dark);
}

.pse-btn-secondary {
    background: var(--pse-bg);
    color: var(--pse-text);
}

.pse-btn-secondary:hover {
    background: var(--pse-bg-alt);
}

.pse-btn-ai {
    background: var(--pse-ai-gradient);
    color: white;
    border: none;
}

.pse-btn-ai:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.pse-btn-sm {
    padding: 4px 10px;
    font-size: 12px;
}

/* Export dropdown */
.pse-export-dropdown {
    position: relative;
}

.pse-export-menu {
    display: none;
    position: absolute;
    bottom: 100%;
    right: 0;
    background: var(--pse-bg-card);
    border: 1px solid var(--pse-border);
    border-radius: var(--pse-radius);
    box-shadow: var(--pse-shadow-lg);
    min-width: 200px;
    z-index: 100;
    overflow: hidden;
    margin-bottom: 4px;
}

.pse-export-menu.pse-show {
    display: block;
}

.pse-export-menu button {
    display: block;
    width: 100%;
    padding: 10px 16px;
    border: none;
    background: none;
    text-align: left;
    font-size: 13px;
    cursor: pointer;
    transition: background var(--pse-transition);
    color: var(--pse-text);
}

.pse-export-menu button:hover {
    background: var(--pse-bg-alt);
    color: var(--pse-primary);
}

.pse-export-menu button + button {
    border-top: 1px solid var(--pse-border-light);
}

/* ===== Modals ===== */
.pse-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

.pse-modal-content {
    background: var(--pse-bg-card);
    border-radius: var(--pse-radius-lg);
    box-shadow: var(--pse-shadow-lg);
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    overflow: auto;
}

.pse-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--pse-border);
}

.pse-modal-header h3 {
    margin: 0;
    font-size: 16px;
}

.pse-modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--pse-text-muted);
    padding: 0 4px;
    line-height: 1;
}

.pse-modal-close:hover {
    color: var(--pse-text);
}

.pse-modal-body {
    padding: 20px;
}

.pse-modal-body label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--pse-text-light);
}

.pse-modal-body textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--pse-border);
    border-radius: var(--pse-radius-sm);
    font-size: 14px;
    resize: vertical;
    outline: none;
    font-family: inherit;
}

.pse-modal-body textarea:focus {
    border-color: var(--pse-primary);
}

.pse-modal-body select {
    padding: 6px 10px;
    border: 1px solid var(--pse-border);
    border-radius: var(--pse-radius-sm);
    font-size: 13px;
    outline: none;
}

.pse-ai-options {
    margin-top: 12px;
}

.pse-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 16px 20px;
    border-top: 1px solid var(--pse-border);
}

/* ===== Design List (Save/Load Modal) ===== */
.pse-designs-list {
    max-height: 400px;
    overflow-y: auto;
}

.pse-design-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    border-bottom: 1px solid var(--pse-border-light);
}

.pse-design-item:last-child {
    border-bottom: none;
}

.pse-design-item-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.pse-design-item-info strong {
    font-size: 14px;
}

.pse-design-item-info span {
    font-size: 12px;
    color: var(--pse-text-muted);
}

.pse-empty-msg {
    text-align: center;
    padding: 30px;
    color: var(--pse-text-muted);
    font-size: 14px;
}

/* ===== Community Section ===== */
.pse-community-section {
    padding: 30px 20px;
    background: var(--pse-bg-alt);
    border-top: 1px solid var(--pse-border);
}

.pse-community-title {
    font-size: 20px;
    font-weight: 700;
    text-align: center;
    margin: 0 0 20px 0;
    color: var(--pse-text);
}

.pse-community-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
}

.pse-community-card {
    background: var(--pse-bg-card);
    border-radius: var(--pse-radius);
    box-shadow: var(--pse-shadow);
    overflow: hidden;
    transition: transform var(--pse-transition), box-shadow var(--pse-transition);
}

.pse-community-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--pse-shadow-lg);
}

.pse-community-thumb {
    width: 100%;
    aspect-ratio: 1;
    background: var(--pse-bg-alt);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.pse-community-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    image-rendering: pixelated;
}

.pse-community-placeholder {
    color: var(--pse-text-muted);
    font-size: 12px;
}

.pse-community-info {
    padding: 10px;
}

.pse-community-info h4 {
    font-size: 13px;
    font-weight: 600;
    margin: 0 0 4px 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pse-community-info span {
    font-size: 11px;
    color: var(--pse-text-muted);
}

.pse-community-actions {
    display: flex;
    gap: 4px;
    padding: 0 10px 10px;
}

.pse-community-actions .pse-btn {
    flex: 1;
}

/* Pagination */
.pse-community-pagination {
    display: flex;
    justify-content: center;
    gap: 4px;
    margin-top: 20px;
}

.pse-page-btn {
    width: 32px;
    height: 32px;
    border: 1px solid var(--pse-border);
    border-radius: var(--pse-radius-sm);
    background: var(--pse-bg);
    cursor: pointer;
    font-size: 13px;
    transition: all var(--pse-transition);
}

.pse-page-btn:hover {
    border-color: var(--pse-primary);
    color: var(--pse-primary);
}

.pse-page-btn.active {
    background: var(--pse-primary);
    color: white;
    border-color: var(--pse-primary-dark);
}

/* ===== How It Works ===== */
.pse-how-it-works {
    padding: 40px 20px;
    text-align: center;
    background: var(--pse-bg);
    border-top: 1px solid var(--pse-border);
}

.pse-how-it-works h2 {
    font-size: 22px;
    font-weight: 700;
    margin: 0 0 8px 0;
}

.pse-how-it-works > p {
    color: var(--pse-text-muted);
    margin: 0 0 30px 0;
    font-size: 15px;
}

.pse-steps {
    display: flex;
    justify-content: center;
    gap: 20px;
    align-items: flex-start;
    flex-wrap: wrap;
}

.pse-step {
    flex: 1;
    max-width: 250px;
    min-width: 200px;
    text-align: center;
}

.pse-step-num {
    display: inline-block;
    font-size: 28px;
    font-weight: 800;
    color: var(--pse-primary);
    opacity: 0.3;
    margin-bottom: 8px;
}

.pse-step h3 {
    font-size: 16px;
    font-weight: 600;
    margin: 0 0 8px 0;
}

.pse-step p {
    font-size: 13px;
    color: var(--pse-text-light);
    line-height: 1.5;
    margin: 0;
}

.pse-step-arrow {
    font-size: 24px;
    color: var(--pse-text-muted);
    align-self: center;
    padding-top: 30px;
}

/* ===== Login Required ===== */
.pse-login-required {
    text-align: center;
    padding: 60px 20px;
    background: var(--pse-bg-alt);
    border-radius: var(--pse-radius-lg);
}

.pse-login-required p {
    font-size: 16px;
    color: var(--pse-text-light);
    margin: 0 0 16px 0;
}

.pse-login-btn {
    display: inline-block;
    padding: 10px 24px;
    background: var(--pse-primary);
    color: white;
    border-radius: var(--pse-radius-sm);
    text-decoration: none;
    font-weight: 600;
    transition: background var(--pse-transition);
}

.pse-login-btn:hover {
    background: var(--pse-primary-dark);
    color: white;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .pse-main {
        flex-direction: column;
    }

    .pse-preview-panel {
        width: 100%;
        border-left: none;
        border-top: 1px solid var(--pse-border);
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
        padding: 16px;
    }

    .pse-stitch-selector,
    .pse-color-count {
        grid-column: 1 / -1;
    }

    .pse-toolbar {
        overflow-x: auto;
        flex-wrap: nowrap;
    }

    .pse-color-group {
        flex-shrink: 0;
    }

    .pse-action-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .pse-action-group {
        justify-content: center;
    }

    .pse-community-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }

    .pse-steps {
        flex-direction: column;
        align-items: center;
    }

    .pse-step-arrow {
        transform: rotate(90deg);
        padding: 0;
    }
}

@media (max-width: 480px) {
    .pse-header {
        flex-direction: column;
        gap: 8px;
    }

    .pse-design-title {
        width: 100%;
    }

    .pse-preview-panel {
        grid-template-columns: 1fr;
    }

    .pse-community-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: 8px;
    }
}

/* ===== Dark Theme ===== */
.pse-theme-dark {
    --pse-bg: #1a1a2e;
    --pse-bg-alt: #16213e;
    --pse-bg-card: #1a1a2e;
    --pse-border: #2a2a4a;
    --pse-border-light: #1f1f3a;
    --pse-text: #e0e0e0;
    --pse-text-light: #a0a0b0;
    --pse-text-muted: #707080;
    --pse-shadow: 0 2px 8px rgba(0,0,0,0.3);
    --pse-shadow-lg: 0 4px 16px rgba(0,0,0,0.4);
}

.pse-theme-dark .pse-pixel-canvas {
    box-shadow: 0 0 20px rgba(77, 150, 255, 0.1);
}

/* ===== Fullscreen 3D ===== */
#pse-preview-3d-wrapper:fullscreen {
    background: var(--pse-bg);
    display: flex;
    align-items: center;
    justify-content: center;
}

#pse-preview-3d-wrapper:fullscreen .pse-preview-canvas {
    width: 90vmin;
    height: 90vmin;
}

#pse-preview-3d-wrapper:fullscreen .pse-fullscreen-btn {
    opacity: 1;
}

/* ===== Image Import Modal ===== */
.pse-modal-wide {
    max-width: 640px;
    width: 92%;
}

.pse-import-body {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.pse-import-preview-col {
    flex: 1 1 55%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.pse-import-preview-canvas {
    max-width: 100%;
    border: 1px solid var(--pse-border);
    border-radius: var(--pse-radius-sm);
    image-rendering: pixelated;
    background: var(--pse-bg-alt);
}

.pse-import-info {
    font-size: 12px;
    color: var(--pse-text-light);
    margin: 0;
    text-align: center;
}

.pse-import-controls-col {
    flex: 1 1 45%;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.pse-import-control label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--pse-text);
    margin-bottom: 6px;
    gap: 8px;
}

.pse-import-control input[type="range"] {
    width: 100%;
    accent-color: var(--pse-primary);
}

.pse-import-toggle label {
    justify-content: flex-start;
    cursor: pointer;
    margin-bottom: 0;
}

.pse-import-toggle input[type="checkbox"] {
    accent-color: var(--pse-primary);
    width: 16px;
    height: 16px;
}

/* Drag & drop state */
.pse-app.pse-drag-over {
    outline: 3px dashed var(--pse-primary);
    outline-offset: -3px;
}

/* ===== Production Stats Panel ===== */
.pse-stats-panel {
    background: var(--pse-bg-alt);
    border: 1px solid var(--pse-border);
    border-radius: var(--pse-radius);
    padding: 12px 14px;
}

.pse-stats-title {
    margin: 0 0 8px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--pse-text-light);
}

.pse-stats-list {
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.pse-stat-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 8px;
}

.pse-stat-row dt {
    font-size: 12px;
    color: var(--pse-text-muted);
}

.pse-stat-row dd {
    margin: 0;
    font-size: 13px;
    font-weight: 600;
    color: var(--pse-text);
    font-variant-numeric: tabular-nums;
}

@media (max-width: 640px) {
    .pse-import-body {
        flex-direction: column;
    }

    .pse-import-preview-col,
    .pse-import-controls-col {
        flex: 1 1 100%;
        width: 100%;
    }
}