/* QR Code Generator - Modern Styles */

:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --secondary: #6b7280;
    --secondary-hover: #4b5563;
    --background: #f9fafb;
    --surface: #ffffff;
    --text: #111827;
    --text-muted: #6b7280;
    --border: #e5e7eb;
    --border-focus: #4f46e5;
    --success: #10b981;
    --error: #ef4444;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
    --radius: 8px;
    --radius-lg: 12px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--background);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 24px;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 32px;
}

.header h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
}

.subtitle {
    color: var(--text-muted);
    font-size: 16px;
}

/* Step Navigation */
.step-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.step-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 14px;
    font-weight: 500;
}

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

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

.step-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--border);
    font-weight: 600;
    font-size: 12px;
}

.step-btn.active .step-num {
    background: rgba(255,255,255,0.2);
}

.step-optional {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 400;
}

.step-btn.active .step-optional {
    color: rgba(255,255,255,0.7);
}

.step-divider {
    width: 30px;
    height: 2px;
    background: var(--border);
}

/* Step Sections */
.step-section {
    display: none;
}

.step-section.active {
    display: block;
}

/* Type Selector */
.type-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.type-card {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
    width: 110px;
}

.type-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

.type-card.active {
    border-color: var(--primary);
    background: #f0f0ff;
}

.type-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--secondary);
}

.type-card.active .type-icon {
    color: var(--primary);
}

.type-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
}

.type-card.active .type-name {
    color: var(--primary);
}

/* Form */
.form-container {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 16px;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text);
}

.form-group input[type="text"],
.form-group input[type="url"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group input[type="time"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px 14px;
    font-size: 15px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--border-focus);
}

.form-group textarea {
    min-height: 80px;
    resize: vertical;
}

.form-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-right: 8px;
    vertical-align: middle;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (max-width: 500px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Preview Small */
.preview-small {
    text-align: center;
    margin-bottom: 24px;
}

.preview-small canvas {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.preview-hint {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 8px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    font-size: 15px;
    font-weight: 500;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
}

.btn svg {
    width: 20px;
    height: 20px;
}

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

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

.btn-secondary {
    background: var(--surface);
    color: var(--text);
    border: 2px solid var(--border);
}

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

.btn-text {
    background: none;
    color: var(--secondary);
    padding: 8px 12px;
}

.btn-text:hover {
    color: var(--primary);
}

.btn-large {
    padding: 16px 28px;
    font-size: 16px;
}

.btn-large svg {
    width: 24px;
    height: 24px;
}

.step-actions {
    text-align: center;
    margin-top: 24px;
}

.step-actions-split {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.step-actions-right {
    display: flex;
    gap: 12px;
    align-items: center;
}

/* ========== Logo Step (Step 2) ========== */
.logo-step-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 24px;
    align-items: start;
}

@media (max-width: 768px) {
    .logo-step-layout {
        grid-template-columns: 1fr;
    }
}

.logo-canvas-container {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow);
    text-align: center;
    position: sticky;
    top: 16px;
}

.logo-canvas-container canvas {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
    cursor: default;
}

.logo-canvas-container canvas.draggable {
    cursor: grab;
}

.logo-canvas-container canvas.dragging {
    cursor: grabbing;
}

.canvas-hint {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 12px;
}

/* Paint Mode Controls */
.paint-mode-controls {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.mode-toggle {
    display: inline-flex;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.mode-btn {
    padding: 6px 14px;
    font-size: 13px;
    font-weight: 500;
    background: var(--surface);
    border: none;
    cursor: pointer;
    transition: all 0.15s;
    color: var(--text-muted);
}

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

.mode-btn:hover {
    background: #f0f0ff;
    color: var(--primary);
}

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

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

.mode-btn:disabled:hover {
    background: var(--surface);
    color: var(--text-muted);
}

.brush-controls {
    display: flex;
    align-items: center;
    gap: 6px;
}

.brush-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.15s;
    color: var(--text);
}

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

.brush-btn.active {
    border-color: var(--primary);
    background: #f0f0ff;
    box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.2);
}

.brush-btn.brush-reset {
    width: auto;
    padding: 0 10px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
}

.brush-btn.brush-reset:hover {
    color: var(--error);
    border-color: var(--error);
}

.logo-canvas-container canvas.paint-mode {
    cursor: crosshair;
}

.logo-controls-panel {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 16px;
    box-shadow: var(--shadow);
}

.logo-controls-panel .control-group {
    margin-bottom: 12px;
    padding-bottom: 0;
    border-bottom: none;
}

.logo-controls-panel .control-group:last-child {
    margin-bottom: 0;
}

.logo-upload-section {
    text-align: center;
    margin-bottom: 12px;
}

.logo-upload-section .btn-large {
    width: 100%;
    justify-content: center;
    margin-bottom: 8px;
}

.mode-hint {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
}

/* ========== Style Layout (Step 3) ========== */
.style-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 24px;
    align-items: start;
}

@media (max-width: 768px) {
    .style-layout {
        grid-template-columns: 1fr;
    }
}

.preview-main {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow);
    text-align: center;
}

.preview-main canvas {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
}

/* Controls Panel */
.controls-panel {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow);
}

.controls-panel .control-group {
    margin-bottom: 14px;
    padding-bottom: 0;
    border-bottom: none;
}

.controls-panel .control-group:last-child {
    margin-bottom: 0;
}

.control-group {
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.control-group:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.control-group h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
}

.control-group label {
    font-size: 14px;
    font-weight: 500;
    display: block;
    margin-bottom: 8px;
}

.control-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.control-group input[type="range"] {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--border);
    appearance: none;
    cursor: pointer;
}

.control-group input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
}

.control-group select {
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    cursor: pointer;
}

.control-group select:focus {
    outline: none;
    border-color: var(--border-focus);
}

/* Shape Selector */
.shape-selector {
    display: flex;
    gap: 8px;
}

.shape-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
    color: var(--secondary);
}

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

.shape-btn.active {
    border-color: var(--primary);
    background: #f0f0ff;
    color: var(--primary);
}

.shape-btn svg {
    width: 24px;
    height: 24px;
}

/* Finder Color Pickers */
.finder-colors {
    display: flex;
    gap: 12px;
    margin-top: 8px;
}

.finder-color-swatch {
    display: flex;
    align-items: center;
    gap: 4px;
}

.finder-color-swatch input[type="color"] {
    width: 28px;
    height: 28px;
    padding: 0;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    background: none;
}

.finder-color-swatch input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 2px;
}

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

.finder-color-swatch span {
    font-size: 11px;
    color: var(--text-muted);
}

/* Palette Display */
.palette-display {
    margin-top: 10px;
}

.palette-row {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-bottom: 6px;
}

.palette-label {
    font-size: 11px;
    color: var(--text-muted);
    width: 32px;
    flex-shrink: 0;
}

.palette-picker {
    flex: 1;
    height: 28px;
    padding: 0;
    border: 2px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    background: none;
}

.palette-picker::-webkit-color-swatch-wrapper {
    padding: 2px;
}

.palette-picker::-webkit-color-swatch {
    border: none;
    border-radius: 2px;
}

/* Gradient Controls */
.gradient-controls {
    margin-top: 10px;
}

.gradient-controls label {
    font-size: 12px;
    font-weight: 500;
    display: block;
    margin-bottom: 4px;
    margin-top: 8px;
    color: var(--text);
}

.gradient-controls label:first-child {
    margin-top: 0;
}

/* Export Buttons */
.export-buttons {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.export-buttons .btn {
    justify-content: center;
}

/* ========== Delete Step (Step 4) ========== */
.delete-step-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 24px;
    align-items: start;
}

@media (max-width: 768px) {
    .delete-step-layout {
        grid-template-columns: 1fr;
    }
}

.delete-canvas-container {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow);
    text-align: center;
    position: relative;
}

.delete-canvas-container canvas {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
    cursor: pointer;
}

.delete-hover-indicator {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--surface);
    border-radius: var(--radius);
    padding: 8px 12px;
    box-shadow: var(--shadow-lg);
    font-size: 12px;
    line-height: 1.4;
    pointer-events: none;
    z-index: 10;
    border-left: 4px solid var(--border);
    min-width: 140px;
}

.delete-side-panel {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow);
}

.delete-side-panel .control-group {
    margin-bottom: 12px;
    padding-bottom: 0;
    border-bottom: none;
}

.delete-side-panel .control-group:last-child {
    margin-bottom: 0;
}

.delete-summary {
    margin-bottom: 16px;
    padding-bottom: 0;
    border-bottom: none;
}

.delete-summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
    font-size: 14px;
}

.delete-summary-row span {
    color: var(--text-muted);
}

.delete-block-legend {
    margin-bottom: 16px;
    max-height: 320px;
    overflow-y: auto;
}

.block-legend-item {
    margin-bottom: 8px;
    padding: 8px;
    border-radius: var(--radius);
    border-left: 4px solid var(--border);
}

.block-legend-item .block-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.block-legend-item .block-name {
    font-weight: 600;
    font-size: 13px;
}

.block-legend-item .block-counts {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
}

.block-legend-item .block-status {
    text-align: right;
}

.block-legend-item .block-status-count {
    font-weight: 700;
    font-size: 13px;
}

.block-legend-item .block-status-label {
    font-size: 10px;
    font-weight: 600;
}

.block-legend-item .block-progress {
    background: #e0e0e0;
    height: 5px;
    border-radius: 3px;
    overflow: hidden;
    margin-top: 6px;
}

.block-legend-item .block-progress-bar {
    height: 100%;
    transition: width 0.3s;
    border-radius: 3px;
}

.block-legend-item .block-max {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 2px;
    text-align: right;
}

/* Responsive */
@media (max-width: 500px) {
    .container {
        padding: 16px;
    }

    .header h1 {
        font-size: 24px;
    }

    .step-btn {
        padding: 8px 12px;
        font-size: 13px;
    }

    .step-label {
        display: none;
    }

    .step-optional {
        display: none;
    }

    .type-selector {
        gap: 8px;
    }

    .type-card {
        padding: 12px 8px;
    }

    .type-icon {
        width: 28px;
        height: 28px;
    }

    .type-name {
        font-size: 12px;
    }

    .step-actions-split {
        flex-direction: column;
        gap: 12px;
    }

    .step-actions-right {
        width: 100%;
        flex-direction: column;
    }

    .step-actions-right .btn {
        width: 100%;
        justify-content: center;
    }
}