/* ============================================
   Pixel Text - Pixel Font Text Generator
   Premium Tool by Anonventions
   ============================================ */

:root {
    --bg-dark: #0a0a10;
    --bg-panel: #101018;
    --bg-card: #18181f;
    --bg-input: #0d0d12;
    --line: #2a2a3a;
    --text: #eaeaea;
    --text-dim: #8888a0;
    --accent: #ffffff;
    --accent-hover: #cccccc;
    --accent-glow: rgba(255, 255, 255, 0.12);
    --success: #22c55e;
    --danger: #ef4444;
    --warning: #f59e0b;
}

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

html, body {
    height: 100%;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-dark);
    color: var(--text);
    font-size: 14px;
    line-height: 1.5;
}

/* ============================================
   Layout
   ============================================ */
.app-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Left Panel - Font Sets */
.left-panel {
    width: 280px;
    background: var(--bg-panel);
    border-right: 1px solid var(--line);
    display: flex;
    flex-direction: column;
}

.panel-header {
    padding: 16px 20px;
    background: linear-gradient(135deg, var(--accent), #6366f1);
    border-bottom: 1px solid var(--line);
}

.panel-header h1 {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
}

.panel-header p {
    font-size: 11px;
    color: rgba(255,255,255,0.7);
    margin-top: 2px;
}

/* Font Sets List */
.font-sets-container {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
}

.font-set-card {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 8px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: all 0.2s;
}

.font-set-card:hover {
    border-color: var(--accent);
}

.font-set-card.active {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(139,92,246,0.2);
}

.font-set-header {
    padding: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    background: rgba(255,255,255,0.02);
}

.font-set-name {
    font-weight: 600;
    font-size: 13px;
}

.font-set-count {
    font-size: 11px;
    color: var(--text-dim);
    background: rgba(139,92,246,0.2);
    padding: 2px 8px;
    border-radius: 10px;
}

.font-set-actions {
    display: flex;
    gap: 6px;
}

.font-set-actions button {
    width: 28px;
    height: 28px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.2s;
}

.font-set-actions .edit-btn { background: rgba(59,130,246,0.2); color: #3b82f6; }
.font-set-actions .delete-btn { background: rgba(239,68,68,0.2); color: #ef4444; }
.font-set-actions button:hover { transform: scale(1.1); }

.font-set-letters {
    padding: 12px;
    border-top: 1px solid var(--line);
    display: none;
}

.font-set-card.expanded .font-set-letters {
    display: block;
}

.letter-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 6px;
}

.letter-item {
    aspect-ratio: 1;
    background: var(--bg-dark);
    border: 1px solid var(--line);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
    overflow: hidden;
}

.letter-item:hover {
    border-color: var(--accent);
    transform: scale(1.05);
}

.letter-item img {
    max-width: 100%;
    max-height: 100%;
    image-rendering: pixelated;
}

.letter-item .letter-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0,0,0,0.8);
    font-size: 9px;
    text-align: center;
    padding: 2px;
}

.add-font-set-btn {
    width: 100%;
    padding: 12px;
    background: rgba(139,92,246,0.1);
    border: 2px dashed var(--accent);
    border-radius: 8px;
    color: var(--accent);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.add-font-set-btn:hover {
    background: rgba(139,92,246,0.2);
}

/* Main Content Area */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Toolbar */
.toolbar {
    background: var(--bg-panel);
    border-bottom: 1px solid var(--line);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

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

.toolbar-divider {
    width: 1px;
    height: 24px;
    background: var(--line);
}

.tool-btn {
    padding: 8px 14px;
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 6px;
    color: var(--text);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
}

.tool-btn:hover {
    border-color: var(--accent);
    background: rgba(139,92,246,0.1);
}

.tool-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

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

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

.tool-btn.success {
    background: var(--success);
    border-color: var(--success);
    color: #000;
}

/* Canvas Area */
.canvas-area {
    flex: 1;
    display: flex;
    overflow: hidden;
}

.preview-container {
    flex: 1;
    overflow: auto;
    background:
        repeating-conic-gradient(var(--bg-card) 0% 25%, var(--bg-dark) 0% 50%) 50% / 20px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.preview-wrapper {
    position: relative;
    display: inline-block;
}

#previewCanvas {
    image-rendering: pixelated;
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
    display: block;
}

.preview-info {
    position: absolute;
    top: -30px;
    left: 0;
    background: var(--accent);
    color: #fff;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}

/* Right Panel - Settings */
.right-panel {
    width: 360px;
    background: var(--bg-panel);
    border-left: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.settings-tabs {
    display: flex;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--line);
}

.settings-tab {
    flex: 1;
    padding: 12px;
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

.settings-tab:hover {
    color: var(--text);
    background: rgba(255,255,255,0.02);
}

.settings-tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.settings-content {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
}

.settings-panel {
    display: none;
}

.settings-panel.active {
    display: block;
}

/* Text Layers Panel */
.text-layers {
    margin-bottom: 16px;
}

.text-layer-item {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 8px;
    margin-bottom: 8px;
    overflow: hidden;
}

.text-layer-item.active {
    border-color: var(--accent);
}

.text-layer-header {
    padding: 10px 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    background: rgba(255,255,255,0.02);
}

.layer-drag-handle {
    color: var(--text-dim);
    cursor: grab;
}

.layer-visibility {
    width: 24px;
    height: 24px;
    background: none;
    border: none;
    color: var(--accent);
    cursor: pointer;
    font-size: 14px;
}

.layer-visibility.hidden {
    color: var(--text-dim);
    opacity: 0.5;
}

.layer-name {
    flex: 1;
    font-size: 13px;
    font-weight: 500;
}

.layer-font-badge {
    font-size: 10px;
    background: rgba(139,92,246,0.2);
    color: var(--accent);
    padding: 2px 8px;
    border-radius: 10px;
}

.layer-actions {
    display: flex;
    gap: 4px;
}

.layer-actions button {
    width: 24px;
    height: 24px;
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    border-radius: 4px;
    font-size: 12px;
}

.layer-actions button:hover {
    background: rgba(255,255,255,0.1);
    color: var(--text);
}

.text-layer-body {
    padding: 12px;
    border-top: 1px solid var(--line);
    display: none;
}

.text-layer-item.expanded .text-layer-body {
    display: block;
}

.add-layer-btn {
    width: 100%;
    padding: 10px;
    background: rgba(139,92,246,0.1);
    border: 1px dashed var(--accent);
    border-radius: 6px;
    color: var(--accent);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.add-layer-btn:hover {
    background: rgba(139,92,246,0.2);
}

/* Form Elements */
.form-group {
    margin-bottom: 14px;
}

.form-group label {
    display: block;
    font-size: 11px;
    color: var(--text-dim);
    margin-bottom: 6px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-dark);
    border: 1px solid var(--line);
    border-radius: 6px;
    color: var(--text);
    font-size: 13px;
    font-family: inherit;
}

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

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.form-row-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 12px;
}

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

.color-input-wrapper input[type="color"] {
    width: 40px;
    height: 36px;
    padding: 2px;
    cursor: pointer;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: var(--bg-input);
}

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

.color-input-wrapper input[type="color"]::-webkit-color-swatch {
    border-radius: 4px;
    border: none;
}

.color-input-wrapper input[type="text"] {
    flex: 1;
}

.clear-color-btn {
    width: 36px;
    height: 36px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 6px;
    color: var(--danger);
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.clear-color-btn:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: var(--danger);
}

/* Slider with value */
.slider-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.slider-group input[type="range"] {
    flex: 1;
    height: 6px;
    -webkit-appearance: none;
    background: var(--line);
    border-radius: 3px;
    border: none;
    padding: 0;
}

.slider-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
}

.slider-group .slider-value {
    min-width: 40px;
    text-align: right;
    font-size: 12px;
    color: var(--accent);
    font-weight: 600;
}

/* Section headers */
.section-header {
    font-size: 12px;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--line);
}

/* Toggle switches */
.toggle-group {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
}

.toggle-group label {
    font-size: 13px;
    color: var(--text);
    margin: 0;
}

.toggle-switch {
    width: 44px;
    height: 24px;
    background: var(--line);
    border-radius: 12px;
    position: relative;
    cursor: pointer;
    transition: all 0.2s;
}

.toggle-switch.active {
    background: var(--accent);
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: #fff;
    border-radius: 50%;
    transition: all 0.2s;
}

.toggle-switch.active::after {
    left: 22px;
}

/* Background settings */
.bg-preview {
    width: 100%;
    height: 80px;
    background: repeating-conic-gradient(var(--bg-card) 0% 25%, var(--bg-dark) 0% 50%) 50% / 10px 10px;
    border: 1px solid var(--line);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    overflow: hidden;
}

.bg-preview img {
    max-width: 100%;
    max-height: 100%;
    image-rendering: pixelated;
}

.bg-upload-btn {
    width: 100%;
    padding: 10px;
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 6px;
    color: var(--text);
    cursor: pointer;
    font-size: 13px;
    transition: all 0.2s;
}

.bg-upload-btn:hover {
    border-color: var(--accent);
}

/* Export Panel */
.export-options {
    background: var(--bg-card);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 16px;
}

.export-btn {
    width: 100%;
    padding: 14px;
    background: var(--accent);
    border: none;
    border-radius: 8px;
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.export-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(139,92,246,0.4);
}

.export-btn.success {
    background: var(--success);
}

/* Letter Upload Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg-panel);
    border: 1px solid var(--line);
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

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

.modal-header h2 {
    font-size: 16px;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 20px;
    cursor: pointer;
    border-radius: 6px;
}

.modal-close:hover {
    background: rgba(255,255,255,0.1);
    color: var(--text);
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--line);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Letter upload dropzone */
.letter-dropzone {
    border: 2px dashed var(--line);
    border-radius: 8px;
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: 16px;
}

.letter-dropzone:hover,
.letter-dropzone.dragover {
    border-color: var(--accent);
    background: rgba(139,92,246,0.1);
}

.letter-dropzone i {
    font-size: 40px;
    color: var(--accent);
    margin-bottom: 12px;
}

.letter-dropzone p {
    color: var(--text-dim);
    margin-bottom: 8px;
}

.letter-dropzone small {
    color: var(--text-dim);
    font-size: 11px;
}

.uploaded-letters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 10px;
    max-height: 300px;
    overflow-y: auto;
}

.uploaded-letter-item {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 8px;
    text-align: center;
}

.uploaded-letter-item img {
    width: 100%;
    height: 40px;
    object-fit: contain;
    image-rendering: pixelated;
    margin-bottom: 6px;
}

.uploaded-letter-item input {
    width: 100%;
    padding: 4px;
    background: var(--bg-dark);
    border: 1px solid var(--line);
    border-radius: 4px;
    color: var(--text);
    font-size: 12px;
    text-align: center;
}

/* Responsive */
@media (max-width: 1200px) {
    .left-panel { width: 240px; }
    .right-panel { width: 320px; }
}

@media (max-width: 900px) {
    .app-container { flex-direction: column; }
    .left-panel, .right-panel {
        width: 100%;
        max-height: 40vh;
    }
}

/* Effect Groups */
.effect-group {
    background: var(--bg-dark);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 12px;
}

.effect-group .toggle-group {
    margin-bottom: 0;
}

.effect-group .toggle-group label {
    display: flex;
    align-items: center;
    gap: 8px;
}

.effect-group .toggle-group label i {
    color: var(--accent);
    width: 16px;
}

.effect-settings {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--line);
}

.effect-settings.hidden {
    display: none;
}

.hidden {
    display: none !important;
}

/* Drag cursor */
#previewCanvas {
    cursor: move;
    border-radius: 4px;
}

#previewCanvas:active {
    cursor: grabbing;
}

/* Improved input styles */
input[type="text"],
input[type="number"],
select,
textarea {
    background: var(--bg-input);
    border: 1px solid var(--line);
    border-radius: 6px;
    color: var(--text);
    padding: 8px 12px;
    font-size: 13px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input[type="text"]:focus,
input[type="number"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

/* Improved buttons */
.tool-btn {
    background: var(--bg-card);
    border: 1px solid var(--line);
    color: var(--text);
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.tool-btn:hover {
    border-color: var(--accent);
    background: rgba(255, 255, 255, 0.05);
}

.tool-btn.primary {
    background: linear-gradient(135deg, var(--accent), #cccccc);
    border-color: var(--accent);
    color: white;
}

.tool-btn.primary:hover {
    box-shadow: 0 4px 12px var(--accent-glow);
    transform: translateY(-1px);
}

.tool-btn.success {
    background: linear-gradient(135deg, var(--success), #16a34a);
    border-color: var(--success);
    color: white;
}

.tool-btn.success:hover {
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.3);
    transform: translateY(-1px);
}

/* Section headers */
.section-header {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent);
    margin-bottom: 12px;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--line);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-dim);
}