/* Variables & Theme Design System */
:root {
    --bg-primary: #0a0c10;
    --bg-secondary: #121620;
    --bg-tertiary: #1a1f2c;
    --surface: #22283a;
    --border: rgba(255, 255, 255, 0.08);
    --border-focus: rgba(0, 229, 255, 0.4);
    --text-primary: #f0f2f5;
    --text-secondary: #9aa5b8;
    --text-muted: #5e6b83;
    
    --accent-1: #00e5ff;
    --accent-2: #8a2be2;
    --accent-gradient: linear-gradient(135deg, #00e5ff 0%, #8a2be2 100%);
    
    --success: #00e676;
    --warning: #ffd600;
    --danger: #ff1744;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
    
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --sidebar-width: 320px;
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.5;
    overflow: hidden;
    height: 100vh;
}

#app {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* Header Styles */
.app-header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px;
    height: 64px;
    z-index: 10;
    box-shadow: var(--shadow-sm);
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.icon-logo {
    width: 32px;
    height: 32px;
    color: var(--accent-1);
    filter: drop-shadow(0 0 8px rgba(0, 229, 255, 0.4));
}

.logo-text h1 {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    line-height: 1.2;
}

.logo-text span {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Tab buttons in Header */
.app-tabs {
    display: flex;
    background-color: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: 4px;
    border: 1px solid var(--border);
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 8px 16px;
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: calc(var(--radius-md) - 2px);
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.tab-btn.active {
    background-color: var(--surface);
    color: var(--accent-1);
    box-shadow: var(--shadow-sm);
}

/* Layout Body */
.app-body {
    display: flex;
    flex: 1;
    overflow: hidden;
    height: calc(100vh - 64px);
}

/* Panels */
.panel {
    width: var(--sidebar-width);
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    flex-shrink: 0;
}

.right-panel {
    border-right: none;
    border-left: 1px solid var(--border);
}

.panel-section {
    padding: 20px;
    border-bottom: 1px solid var(--border);
}

.panel-section:last-child {
    border-bottom: none;
}

.section-title {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-primary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Main Interactive Area */
.canvas-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-primary);
    overflow: hidden;
    position: relative;
}

/* Canvas Toolbar */
.canvas-toolbar {
    height: 48px;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 16px;
    gap: 12px;
    z-index: 5;
}

.toolbar-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.toolbar-divider {
    width: 1px;
    height: 20px;
    background-color: var(--border);
}

.toolbar-spacer {
    flex: 1;
}

.canvas-status {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Canvas Wrapper */
.canvas-wrapper {
    flex: 1;
    position: relative;
    overflow: hidden;
    outline: none;
}

#planner-canvas, #preview-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
}

/* Inputs & Form Elements */
.form-group {
    margin-bottom: 16px;
}

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

.form-group label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-row {
    display: flex;
    gap: 12px;
}

.col-6 {
    flex: 0 0 calc(50% - 6px);
}

.form-input, .form-select {
    width: 100%;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 10px 12px;
    font-size: 0.9rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    font-family: var(--font-sans);
}

.form-input:focus, .form-select:focus {
    outline: none;
    border-color: var(--accent-1);
    box-shadow: 0 0 0 2px rgba(0, 229, 255, 0.15);
}

.form-input[type="number"] {
    -moz-appearance: textfield;
}

.form-input[type="number"]::-webkit-outer-spin-button,
.form-input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.label-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.size-indicators {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 8px;
    padding: 6px 10px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    border: 1px dashed var(--border);
    line-height: 1.6;
}

.field-info {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Custom Radio Card Style */
.radio-card {
    display: block;
    cursor: pointer;
    margin-bottom: 10px;
    position: relative;
}

.radio-card input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.radio-content {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    transition: all 0.2s ease;
}

.radio-card input:checked + .radio-content {
    border-color: var(--accent-1);
    background-color: rgba(0, 229, 255, 0.05);
}

.radio-title {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.radio-desc {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Toggle Switch Control */
.form-group label.toggle-control,
.toggle-control {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--text-primary);
    user-select: none;
    margin-bottom: 0;
}

.toggle-control input {
    display: none;
}

.toggle-slider {
    position: relative;
    width: 36px;
    height: 20px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 20px;
    transition: 0.2s ease;
    flex-shrink: 0;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 14px;
    width: 14px;
    left: 2px;
    bottom: 2px;
    background-color: var(--text-secondary);
    border-radius: 50%;
    transition: 0.2s ease;
}

.toggle-control input:checked + .toggle-slider {
    background-color: rgba(0, 229, 255, 0.2);
    border-color: var(--accent-1);
}

.toggle-control input:checked + .toggle-slider:before {
    transform: translateX(16px);
    background-color: var(--accent-1);
}

/* Range Slider Styling */
.form-range {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    border-radius: var(--radius-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    outline: none;
    margin-top: 6px;
    margin-bottom: 6px;
}

.form-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-1);
    cursor: pointer;
    box-shadow: 0 0 8px rgba(0, 229, 255, 0.5);
    transition: transform 0.1s ease;
}

.form-range::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.form-range::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border: none;
    border-radius: 50%;
    background: var(--accent-1);
    cursor: pointer;
    box-shadow: 0 0 8px rgba(0, 229, 255, 0.5);
    transition: transform 0.1s ease;
}

.form-range::-moz-range-thumb:hover {
    transform: scale(1.2);
}

/* Color Picker Wrapper */
.color-picker-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
}

.form-color-input {
    -webkit-appearance: none;
    border: none;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    cursor: pointer;
    background: none;
}

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

.form-color-input::-webkit-color-swatch {
    border: 1px solid var(--border);
    border-radius: 50%;
}

.color-hex-text {
    font-size: 0.85rem;
    font-family: monospace;
    color: var(--text-primary);
}

/* File Dropzone */
.dropzone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-md);
    padding: 24px 16px;
    text-align: center;
    background-color: var(--bg-tertiary);
    cursor: pointer;
    transition: all 0.2s ease;
    margin-bottom: 16px;
}

.dropzone:hover, .dropzone.dragover {
    border-color: var(--accent-1);
    background-color: rgba(0, 229, 255, 0.02);
}

.file-input-hidden {
    display: none;
}

.icon-upload {
    width: 32px;
    height: 32px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.dropzone-text .primary-text {
    font-size: 0.85rem;
    font-weight: 500;
}

.dropzone-text .secondary-text {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 2px;
}

/* Image Library List */
.image-list {
    max-height: 200px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-right: 4px;
}

.empty-list-text {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
    padding: 16px 0;
}

.image-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px;
    cursor: grab;
    user-select: none;
    transition: border-color 0.2s ease;
    position: relative;
}

.image-item:hover {
    border-color: var(--border-focus);
}

.image-item.dragging {
    opacity: 0.5;
}

.image-item img {
    width: 36px;
    height: 36px;
    object-fit: cover;
    border-radius: 4px;
    background-color: #000;
}

.image-item-main {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
}

.image-details {
    flex: 1;
    min-width: 0;
}

.image-name {
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
}

.image-resolution {
    font-size: 0.65rem;
    color: var(--text-muted);
}

.btn-remove-image {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: color 0.2s, background-color 0.2s;
}

.btn-remove-image:hover {
    color: var(--danger);
    background-color: rgba(255, 23, 68, 0.1);
}

.image-item-control {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
    margin-top: 4px;
    padding-top: 6px;
    border-top: 1px dashed var(--border);
}

.image-item-control-row {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
}

.image-item-control-row .control-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    min-width: 80px;
    white-space: nowrap;
}

.image-item-control-row .form-range {
    flex: 1;
    margin: 0;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    user-select: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 4px 12px rgba(0, 229, 255, 0.2);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(0, 229, 255, 0.3);
}

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

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

.btn-danger-outline {
    background-color: transparent;
    border-color: rgba(255, 23, 68, 0.4);
    color: #ff5252;
}

.btn-danger-outline:hover {
    background-color: rgba(255, 23, 68, 0.1);
    border-color: var(--danger);
}

.btn-icon {
    width: 32px;
    height: 32px;
    padding: 0;
    border-radius: var(--radius-sm);
    background-color: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-primary);
}

.btn-icon:hover {
    background-color: var(--border);
}

.btn-icon svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.btn-text {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 6px 10px;
}

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

.btn-sm {
    padding: 6px 10px;
    font-size: 0.75rem;
}

.btn-block {
    width: 100%;
    margin-bottom: 10px;
}

.btn-block:last-child {
    margin-bottom: 0;
}

.icon-inline {
    width: 16px;
    height: 16px;
    fill: currentColor;
    flex-shrink: 0;
}

/* Export Progress Bar */
.export-progress-bar {
    margin-top: 16px;
    padding: 12px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.progress-track {
    height: 6px;
    background-color: var(--surface);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 8px;
}

.progress-fill {
    height: 100%;
    background: var(--accent-gradient);
    width: 0%;
    transition: width 0.1s ease;
}

.export-progress-bar span {
    font-size: 0.75rem;
    color: var(--text-secondary);
    display: block;
    text-align: center;
}

/* Utility styles */
.hidden {
    display: none !important;
}

.frame-settings-sub {
    margin-top: 12px;
    padding-left: 12px;
    border-left: 2px solid var(--border);
    transition: opacity 0.2s;
}

/* Instructions Layout */
.instructions-container {
    flex: 1;
    overflow-y: auto;
    padding: 30px;
    background-color: var(--bg-primary);
}

.instructions-actions {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 24px;
}

.instructions-print-area {
    background-color: #ffffff;
    color: #1a1a1a;
    padding: 40px;
    border-radius: var(--radius-md);
    max-width: 900px;
    margin: 0 auto;
    box-shadow: var(--shadow-lg);
    font-family: var(--font-sans);
}

.instruction-cover {
    border-bottom: 2px solid #e0e0e0;
    padding-bottom: 24px;
    margin-bottom: 30px;
    text-align: center;
}

.instruction-cover h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 4px;
}

.instruction-date {
    font-size: 0.85rem;
    color: #707070;
}

.instruction-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 24px;
}

.stat-card {
    background-color: #f5f6f8;
    padding: 12px;
    border-radius: var(--radius-sm);
    text-align: center;
    border: 1px solid #e8e8e8;
}

.stat-val {
    display: block;
    font-size: 1.1rem;
    font-weight: 700;
    color: #000;
}

.stat-lbl {
    font-size: 0.75rem;
    color: #666;
}

.instruction-section {
    margin-bottom: 35px;
}

.instruction-section h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 6px;
    border-bottom: 1px solid #eee;
    color: #111;
}

.layout-preview-box {
    background-color: #f5f6f8;
    border: 1px solid #e0e0e0;
    border-radius: var(--radius-sm);
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.layout-preview-box canvas {
    max-width: 100%;
    max-height: 400px;
    display: block;
    background-color: transparent;
}

.instructions-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 12px;
}

.instructions-table th {
    background-color: #f5f6f8;
    border-bottom: 2px solid #e0e0e0;
    color: #333;
    font-size: 0.85rem;
    font-weight: 600;
    text-align: left;
    padding: 12px;
}

.instructions-table td {
    border-bottom: 1px solid #eee;
    padding: 12px;
    font-size: 0.85rem;
    vertical-align: middle;
}

.instructions-table tbody tr:hover {
    background-color: #fafafa;
}

.inst-hex-preview-cell {
    width: 80px;
    height: 80px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #fafafa;
    border: 1px solid #ddd;
    border-radius: 4px;
    overflow: hidden;
}

.inst-hex-preview-cell img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.inst-code-badge {
    background-color: #1a1f2c;
    color: #fff;
    padding: 4px 8px;
    border-radius: 4px;
    font-family: monospace;
    font-weight: bold;
    font-size: 0.85rem;
    display: inline-block;
}

/* Printing styles */
@media print {
    body {
        background-color: #ffffff;
        color: #000000;
        overflow: visible;
        height: auto;
    }
    
    #app {
        height: auto;
    }
    
    .app-header, .panel, .canvas-toolbar, .instructions-actions {
        display: none !important;
    }
    
    .app-body {
        display: block;
        height: auto;
        overflow: visible;
    }
    
    .instructions-container {
        padding: 0;
        background-color: #ffffff;
        overflow: visible;
    }
    
    .instructions-print-area {
        box-shadow: none;
        padding: 0;
        max-width: 100%;
    }
    
    .instructions-table th {
        background-color: #f5f6f8 !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
    
    .stat-card {
        background-color: #f5f6f8 !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
}

/* Margin/Padding Utility classes */
.ml-3 {
    margin-left: 12px !important;
}
.mr-3 {
    margin-right: 12px !important;
}
.mt-3 {
    margin-top: 12px !important;
}
.pt-3 {
    padding-top: 12px !important;
}
.checkbox-group label {
    user-select: none;
}

/* Tryb interakcji w toolbarze planera (Siatka / Przesunięcie obrazu) */
#tool-mode-group {
    background-color: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: 3px;
    border: 1px solid var(--border);
    display: inline-flex;
    gap: 4px;
}

#tool-mode-group .btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 6px 12px;
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: calc(var(--radius-md) - 2px);
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

#tool-mode-group .btn:hover {
    color: var(--text-primary);
}

#tool-mode-group .btn.active {
    background-color: var(--surface);
    color: var(--accent-1);
    box-shadow: var(--shadow-sm);
}

#tool-mode-group .btn .icon-inline {
    margin-right: 4px;
}