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

/* 한글 픽셀 폰트 */
@font-face {
    font-family: 'NeoDunggeunmo';
    src: url('https://fastly.jsdelivr.net/gh/projectnoonnu/noonfonts_2001@1.3/NeoDunggeunmo.woff') format('woff');
    font-weight: normal;
    font-style: normal;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: #0f0f0f;
    color: #ffffff;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Desktop/Mobile visibility */
.desktop-only {
    display: block;
}

.mobile-only {
    display: none;
}

/* Mobile Header - 간소화 */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 50px;
    background: rgba(17, 17, 17, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #222;
    z-index: 1000;
    padding: 0 10px;
    align-items: center;
    gap: 10px;
}

.hamburger {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    padding: 5px;
}

.mobile-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    color: white;
    font-size: 0.9rem;
    font-weight: 600;
}

.logo-icon-small {
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 12px;
}

/* Mobile Navigation - 간소화 */
.mobile-nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1001;
}

.mobile-nav-overlay.active {
    display: block;
}

.mobile-nav {
    position: fixed;
    left: -280px;
    top: 0;
    width: 280px;
    height: 100%;
    background: #1a1a1a;
    z-index: 1002;
    transition: left 0.3s ease;
    overflow-y: auto;
}

.mobile-nav.active {
    left: 0;
}

.mobile-nav-close {
    position: absolute;
    top: 10px;
    right: 10px;
    background: none;
    border: none;
    color: #888;
    font-size: 24px;
    cursor: pointer;
    padding: 5px;
}

.mobile-nav-content {
    padding: 60px 20px 20px;
}

.mobile-nav-link,
.mobile-nav-btn {
    display: block;
    padding: 15px;
    margin-bottom: 5px;
    color: #aaa;
    text-decoration: none;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.95rem;
}

.mobile-nav-link:hover,
.mobile-nav-btn:hover {
    background: #222;
    color: white;
    padding-left: 20px;
}

.mobile-nav-divider {
    height: 1px;
    background: #333;
    margin: 15px 0;
}

/* Desktop Header */
.desktop-header {
    display: block;
}

.header {
    background: rgba(17, 17, 17, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #222;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: white;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.logo-text {
    font-weight: 600;
}

.nav {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-badge {
    background: linear-gradient(135deg, #ff006e, #ff4500);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.nav-btn {
    background: none;
    border: 1px solid #333;
    color: #aaa;
    padding: 6px 16px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

.nav-btn:hover {
    border-color: #555;
    color: white;
}

.guide-btn {
    background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
    border: none;
    color: #fff !important;
}

.guide-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(78, 205, 196, 0.3);
}

/* Main */
.main {
    padding: 40px 0;
}

/* Title Section */
.title-section {
    text-align: center;
    padding-top: 30px;  /* 2줄 정도 여백 추가 */
    margin-bottom: 40px;
}

.title {
    font-family: 'Press Start 2P', monospace;
    font-size: 2.5rem;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4, #45b7d1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
}

.subtitle {
    color: #666;
    font-size: 1.1rem;
}

/* Editor Container */
.editor-container {
    display: grid;
    grid-template-columns: 280px 1fr 320px;
    gap: 20px;
    margin-bottom: 60px;
}

/* Tools Panel */
.tools-panel {
    background: #1a1a1a;
    border-radius: 12px;
    padding: 20px;
    height: fit-content;
}

.tool-section {
    margin-bottom: 24px;
}

.section-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: #888;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.reset-btn {
    background: none;
    border: none;
    color: #666;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.2s;
}

.reset-btn:hover {
    color: #4ecdc4;
    transform: rotate(180deg);
}

/* Size Selector */
.size-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.size-btn {
    background: #222;
    border: 1px solid #333;
    color: #666;
    padding: 10px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.9rem;
}

.size-btn:hover {
    background: #2a2a2a;
    color: #fff;
}

.size-btn.active {
    background: #ff6b6b;
    border-color: #ff6b6b;
    color: white;
}

/* Drawing Mode */
.drawing-mode {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mode-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px;
    background: #222;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

.mode-option:hover {
    background: #2a2a2a;
}

.mode-option input[type="radio"] {
    accent-color: #4ecdc4;
}

.mode-option label {
    color: #aaa;
    font-size: 0.85rem;
    cursor: pointer;
    flex: 1;
}

.mode-option.active {
    background: #2a2a2a;
    border: 1px solid #4ecdc4;
}

.mode-option.active label {
    color: white;
}

/* Tool Grid */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
}

.tool-btn {
    background: #222;
    border: 1px solid #333;
    color: #666;
    width: 56px;
    height: 44px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    font-size: 18px;
}

.tool-btn:hover {
    background: #2a2a2a;
    color: white;
    transform: translateY(-2px);
}

.tool-btn.active {
    background: #4ecdc4;
    border-color: #4ecdc4;
    color: white;
}

/* Edit Tools */
.edit-tools {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
}

.edit-btn {
    background: #222;
    border: 1px solid #333;
    color: #888;
    padding: 8px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    transition: all 0.2s;
}

.edit-btn:hover {
    background: #2a2a2a;
    color: white;
    border-color: #4ecdc4;
}

/* Color Section */
.color-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.color-mode-selector {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
}

.color-mode-btn {
    flex: 1;
    padding: 8px;
    background: #222;
    border: 1px solid #333;
    border-radius: 6px;
    color: #888;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s;
}

.color-mode-btn:hover {
    background: #2a2a2a;
    color: white;
}

.color-mode-btn.active {
    background: #4ecdc4;
    border-color: #4ecdc4;
    color: white;
}

.current-colors {
    display: flex;
    align-items: center;
    gap: 8px;
}

.primary-color,
.secondary-color {
    width: 50px;
    height: 50px;
    border: 2px solid #333;
    border-radius: 6px;
    cursor: pointer;
    position: relative;
}

.primary-color {
    z-index: 2;
}

.secondary-color {
    width: 40px;
    height: 40px;
    margin-left: -15px;
}

.swap-btn {
    background: #222;
    border: 1px solid #333;
    color: #666;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    cursor: pointer;
    margin-left: 8px;
    transition: all 0.2s;
}

.swap-btn:hover {
    background: #2a2a2a;
    color: white;
}

.preset-colors {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 4px;
}

.color-preset {
    width: 28px;
    height: 28px;
    border: 1px solid #333;
    border-radius: 4px;
    cursor: pointer;
    transition: transform 0.2s;
}

.color-preset:hover {
    transform: scale(1.2);
    border-color: white;
}

/* Color Picker Section */
.color-picker-section {
    padding: 12px;
    background: #222;
    border-radius: 8px;
}

.solid-color-controls,
.gradient-controls {
    display: none;
}

.solid-color-controls.active,
.gradient-controls.active {
    display: block;
}

.slider-container {
    margin-bottom: 12px;
}

.slider-label {
    color: #666;
    font-size: 0.75rem;
    margin-bottom: 4px;
}

.hue-slider {
    width: 100%;
    height: 20px;
    -webkit-appearance: none;
    border-radius: 10px;
    outline: none;
    margin: 8px 0;
    background: linear-gradient(to right, 
        hsl(0,100%,50%), 
        hsl(60,100%,50%), 
        hsl(120,100%,50%), 
        hsl(180,100%,50%), 
        hsl(240,100%,50%), 
        hsl(300,100%,50%), 
        hsl(360,100%,50%));
}

.hue-slider::-webkit-slider-thumb,
.brightness-slider::-webkit-slider-thumb,
.saturation-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    border: 2px solid #333;
    cursor: pointer;
}

.brightness-slider,
.saturation-slider {
    width: 100%;
    height: 16px;
    -webkit-appearance: none;
    border-radius: 8px;
    outline: none;
    margin: 8px 0;
}

.gradient-direction {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 4px;
    margin-top: 8px;
}

.direction-btn {
    padding: 8px;
    background: #1a1a1a;
    border: 1px solid #333;
    border-radius: 4px;
    cursor: pointer;
    color: #888;
    transition: all 0.2s;
}

.direction-btn:hover {
    background: #2a2a2a;
    color: white;
}

.direction-btn.active {
    background: #4ecdc4;
    border-color: #4ecdc4;
    color: white;
}

.gradient-preview {
    width: 100%;
    height: 40px;
    border-radius: 6px;
    margin-top: 8px;
    border: 1px solid #333;
}

.gradient-color-select {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
}

.gradient-color-btn {
    flex: 1;
    padding: 6px;
    background: #1a1a1a;
    border: 1px solid #333;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.75rem;
    color: #888;
    transition: all 0.2s;
}

.gradient-color-btn:hover {
    background: #2a2a2a;
    color: white;
}

.gradient-color-btn.active {
    background: #333;
    border-color: #4ecdc4;
    color: white;
}

/* Action Buttons */
.action-btn {
    width: 100%;
    background: #222;
    border: 1px solid #333;
    color: #888;
    padding: 10px;
    border-radius: 6px;
    cursor: pointer;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s;
    font-size: 0.85rem;
}

.action-btn:hover {
    background: #2a2a2a;
    color: white;
}

.mobile-actions {
    display: flex;
    gap: 8px;
}

.mobile-actions .action-btn {
    flex: 1;
    margin-bottom: 0;
}

/* Canvas Container */
.canvas-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.canvas-wrapper {
    position: relative;
    background: #2a2a2a;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.quick-clear-btn {
    position: absolute;
    top: -10px;
    right: -10px;
    background: #ff6b6b;
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: all 0.2s;
}

.quick-clear-btn:hover {
    background: #ff5252;
    transform: scale(1.1);
}

#pixelCanvas {
    background: white;
    cursor: crosshair;
    image-rendering: pixelated;
    image-rendering: -moz-crisp-edges;
    image-rendering: crisp-edges;
    border-radius: 4px;
}

#gridCanvas,
#guideCanvas {
    position: absolute;
    top: 20px;
    left: 20px;
    pointer-events: none;
}

#gridCanvas {
    opacity: 0.2;
}

#guideCanvas {
    opacity: 0.4;
}

/* 모바일 컨트롤 - 심플 버전 */
.mobile-controls {
    display: none;
    background: #1a1a1a;
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 15px;
    gap: 20px;
    justify-content: space-around;
    width: 100%;
    max-width: 320px;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.control-group label {
    color: #888;
    font-size: 0.9rem;
    font-weight: 600;
}

.size-buttons {
    display: flex;
    gap: 5px;
}

.size-btn-mobile {
    padding: 8px 12px;
    background: #222;
    border: 1px solid #333;
    color: #888;
    border-radius: 6px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
}

.size-btn-mobile.active {
    background: #4ecdc4;
    border-color: #4ecdc4;
    color: #111;
    font-weight: 600;
}

.color-picker-mobile {
    width: 50px;
    height: 36px;
    border: 2px solid #333;
    border-radius: 6px;
    background: #222;
    cursor: pointer;
}

/* Preview Section */
.preview-section {
    background: #1a1a1a;
    border-radius: 12px;
    padding: 20px;
    width: 100%;
}

.preview-title {
    font-size: 0.9rem;
    color: #888;
    margin-bottom: 16px;
    text-align: center;
}

.preview-grid {
    display: flex;
    justify-content: center;
    gap: 30px;
}

.preview-item {
    text-align: center;
}

.preview-box {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    margin-bottom: 8px;
}

.preview-box canvas {
    image-rendering: pixelated;
    image-rendering: -moz-crisp-edges;
    image-rendering: crisp-edges;
}

.browser-tab {
    background: white;
    border: 1px solid #ddd;
    border-radius: 8px 8px 0 0;
    padding: 8px 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    width: auto;
    height: auto;
}

.browser-tab span {
    color: #333;
    font-size: 0.85rem;
}

.preview-item > span {
    color: #666;
    font-size: 0.85rem;
}

/* Export Panel */
.export-panel {
    background: #1a1a1a;
    border-radius: 12px;
    padding: 20px;
    height: fit-content;
}

/* Text Section */
.text-section {
    margin-bottom: 24px;
}

#textInput {
    width: 100%;
    background: #222;
    border: 1px solid #333;
    color: white;
    padding: 12px;
    border-radius: 6px;
    font-size: 1rem;
    margin-bottom: 8px;
}

#textInput:focus {
    outline: none;
    border-color: #4ecdc4;
}

.text-hint {
    color: #888;
    font-size: 0.75rem;
    margin-bottom: 12px;
    text-align: center;
}

.text-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 12px;
}

.text-options select {
    background: #222;
    border: 1px solid #333;
    color: white;
    padding: 8px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
}

.text-options select:focus {
    outline: none;
    border-color: #4ecdc4;
}

/* Emoji Section */
.emoji-section {
    margin-bottom: 24px;
}

#emojiCategory {
    width: 100%;
    padding: 8px;
    background: #222;
    border: 1px solid #333;
    border-radius: 6px;
    color: white;
    margin-bottom: 12px;
    cursor: pointer;
}

.emoji-grid-improved {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    grid-template-rows: repeat(4, 1fr);
    gap: 8px;
    padding: 12px;
    background: #222;
    border-radius: 8px;
    height: 240px;
}

.emoji-btn {
    width: 100%;
    aspect-ratio: 1;
    background: #1a1a1a;
    border: 1px solid #333;
    border-radius: 8px;
    cursor: pointer;
    font-size: 24px;
display: flex;
   align-items: center;
   justify-content: center;
   transition: all 0.2s;
}

.emoji-btn:hover {
   background: #333;
   transform: scale(1.15);
   border-color: #4ecdc4;
   z-index: 10;
}

.emoji-btn.empty {
   cursor: default;
   pointer-events: none;
}

.emoji-pagination {
   display: flex;
   justify-content: center;
   align-items: center;
   gap: 16px;
   margin-top: 12px;
}

.emoji-pagination button {
   background: #222;
   border: 1px solid #333;
   color: white;
   padding: 4px 12px;
   border-radius: 4px;
   cursor: pointer;
}

.emoji-pagination button:hover {
   background: #333;
}

#emojiPageInfo {
   color: #666;
   font-size: 0.85rem;
}

/* Emoji Direct Input */
.emoji-direct-section {
   margin-top: 20px;
   padding-top: 20px;
   border-top: 1px solid #333;
}

.emoji-direct-label {
   font-size: 0.75rem;
   color: #888;
   margin-bottom: 10px;
   text-transform: uppercase;
   letter-spacing: 0.5px;
   font-weight: 600;
}

.emoji-input-wrapper {
   background: white;
   border-radius: 8px;
   padding: 4px;
   box-shadow: inset 0 1px 3px rgba(0,0,0,0.1);
}

#emojiDirectInput {
   width: 100%;
   background: transparent;
   border: none;
   color: #333;
   padding: 12px;
   font-size: 1.8rem;
   text-align: center;
   outline: none;
}

#emojiDirectInput::placeholder {
   color: #ccc;
   font-size: 0.9rem;
}

/* Convert Button */
.convert-btn {
   width: 100%;
   background: linear-gradient(135deg, #4ecdc4, #44a3aa);
   border: none;
   color: white;
   padding: 10px;
   border-radius: 6px;
   cursor: pointer;
   font-weight: 600;
   transition: all 0.2s;
}

.convert-btn:hover {
   transform: translateY(-1px);
   box-shadow: 0 4px 12px rgba(78, 205, 196, 0.3);
}

/* Export Section */
.export-section {
   margin-bottom: 24px;
}

.export-btn {
   width: 100%;
   background: #222;
   border: 1px solid #333;
   color: white;
   padding: 12px;
   border-radius: 8px;
   cursor: pointer;
   margin-bottom: 10px;
   display: flex;
   align-items: center;
   justify-content: center;
   gap: 8px;
   transition: all 0.2s;
}

.export-btn:hover {
   background: #2a2a2a;
   transform: translateY(-1px);
}

.export-btn.primary {
   background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
   border: none;
}

.export-btn.primary:hover {
   transform: translateY(-2px);
   box-shadow: 0 5px 20px rgba(255, 107, 107, 0.3);
}

/* Code Section */
.code-section {
   margin-bottom: 24px;
}

.code-box {
   background: #0a0a0a;
   border: 1px solid #222;
   border-radius: 6px;
   padding: 12px;
   margin-bottom: 8px;
   font-family: monospace;
   font-size: 0.85rem;
   color: #4ecdc4;
   overflow-x: auto;
}

.copy-btn {
   background: #222;
   border: 1px solid #333;
   color: #888;
   padding: 6px 16px;
   border-radius: 6px;
   cursor: pointer;
   font-size: 0.85rem;
   transition: all 0.2s;
}

.copy-btn:hover {
   background: #2a2a2a;
   color: white;
}

/* SEO Content Section */
.seo-content {
   margin-top: 80px;
   padding-top: 40px;
   border-top: 1px solid #333;
}

.seo-content h2 {
   font-size: 2rem;
   color: #fff;
   margin-bottom: 30px;
   text-align: center;
   background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
   -webkit-background-clip: text;
   -webkit-text-fill-color: transparent;
}

/* SEO Accordion */
.seo-accordion {
   background: #1a1a1a;
   border-radius: 8px;
   margin-bottom: 16px;
   border: 1px solid #222;
   transition: all 0.3s;
}

.seo-accordion:hover {
   border-color: #333;
}

.seo-accordion summary {
   padding: 20px;
   cursor: pointer;
   list-style: none;
   position: relative;
   transition: all 0.3s;
}

.seo-accordion summary::-webkit-details-marker {
   display: none;
}

.seo-accordion summary::after {
   content: '▼';
   position: absolute;
   right: 20px;
   top: 50%;
   transform: translateY(-50%);
   color: #666;
   transition: transform 0.3s;
}

.seo-accordion[open] summary::after {
   transform: translateY(-50%) rotate(180deg);
}

.seo-accordion summary h3 {
   color: #fff;
   font-size: 1.1rem;
   margin: 0;
}

.seo-accordion summary:hover {
   background: #222;
}

.seo-accordion[open] summary {
   border-bottom: 1px solid #333;
   background: #222;
}

.accordion-content {
   padding: 30px;
   color: #aaa;
   line-height: 1.7;
}

.accordion-content h4 {
   color: #4ecdc4;
   margin: 25px 0 15px;
   font-size: 1rem;
}

.accordion-content h5 {
   color: #fff;
   margin: 20px 0 10px;
   font-size: 0.95rem;
}

.accordion-content p {
   margin-bottom: 15px;
}

.accordion-content ul {
   list-style: none;
   margin: 15px 0;
}

.accordion-content ul li {
   position: relative;
   padding-left: 25px;
   margin-bottom: 10px;
}

.accordion-content ul li::before {
   content: '▸';
   position: absolute;
   left: 0;
   color: #4ecdc4;
}

.accordion-content ol {
   margin: 15px 0;
   padding-left: 20px;
}

.accordion-content ol li {
   margin-bottom: 10px;
   color: #aaa;
}

/* Table in accordion */
.size-guide-table {
   width: 100%;
   border-collapse: collapse;
   margin: 20px 0;
}

.size-guide-table th {
   background: #222;
   color: #4ecdc4;
   padding: 12px;
   text-align: left;
   font-size: 0.9rem;
   border: 1px solid #333;
}

.size-guide-table td {
   padding: 12px;
   color: #aaa;
   border: 1px solid #333;
   font-size: 0.85rem;
}

.size-guide-table td strong {
   color: #fff;
}

/* Tip Box */
.tip-box {
   background: #222;
   border-left: 3px solid #4ecdc4;
   padding: 15px;
   margin: 20px 0;
   border-radius: 4px;
}

.tip-box strong {
   color: #4ecdc4;
}

/* Footer */
.footer {
   background: #111;
   border-top: 1px solid #222;
   padding: 30px 0;
   text-align: center;
   margin-top: 80px;
}

.footer p {
   color: #666;
}

/* Modal */
.modal {
   display: none;
   position: fixed;
   top: 0;
   left: 0;
   width: 100%;
   height: 100%;
   background: rgba(0, 0, 0, 0.8);
   z-index: 1000;
   align-items: center;
   justify-content: center;
}

.modal-content {
   background: #1a1a1a;
   border-radius: 12px;
   padding: 30px;
   max-width: 600px;
   width: 90%;
   max-height: 80vh;
   overflow-y: auto;
   position: relative;
}

.modal-close {
   position: absolute;
   top: 15px;
   right: 15px;
   font-size: 24px;
   color: #666;
   cursor: pointer;
   transition: all 0.2s;
}

.modal-close:hover {
   color: white;
}

.help-content h3 {
   color: #4ecdc4;
   margin: 20px 0 10px;
}

.help-content ul {
   list-style: none;
   padding-left: 20px;
}

.help-content li {
   margin-bottom: 8px;
   color: #aaa;
}

/* Guide Modal Simple */
.guide-modal-simple {
   max-width: 500px;
}

.quick-guide-content {
   margin-top: 20px;
}

.guide-step {
   display: flex;
   align-items: flex-start;
   gap: 15px;
   margin-bottom: 20px;
   padding: 15px;
   background: #222;
   border-radius: 8px;
}

.step-number {
   background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
   color: white;
   width: 30px;
   height: 30px;
   border-radius: 50%;
   display: flex;
   align-items: center;
   justify-content: center;
   font-weight: 700;
   flex-shrink: 0;
}

.step-content h4 {
   color: #fff;
   margin-bottom: 5px;
   font-size: 0.95rem;
}

.step-content p {
   color: #888;
   font-size: 0.85rem;
   margin: 0;
}

/* Navigation Links */
.nav-links {
   display: flex;
   align-items: center;
   gap: 15px;
   margin-right: 20px;
}

.nav-link {
   color: #aaa;
   text-decoration: none;
   font-size: 0.9rem;
   transition: all 0.2s;
}

.nav-link:hover {
   color: #4ecdc4;
}

.nav-divider {
   color: #333;
   font-size: 0.8rem;
}

/* Footer Links */
.footer-content {
   text-align: center;
}

.footer-links {
   margin-top: 15px;
   display: flex;
   justify-content: center;
   gap: 10px;
   align-items: center;
}

.footer-links a {
   color: #888;
   text-decoration: none;
   font-size: 0.85rem;
   transition: all 0.2s;
}

.footer-links a:hover {
   color: #4ecdc4;
}

.footer-links span {
   color: #444;
   font-size: 0.7rem;
}

/* 반응형 */
@media (max-width: 1400px) {
   .container {
       max-width: 1200px;
   }
}

@media (max-width: 1200px) {
   .editor-container {
       grid-template-columns: 1fr;
       max-width: 800px;
       margin: 0 auto 60px;
   }
   
   .tools-panel.desktop-only,
   .export-panel {
       max-width: 100%;
       display: grid;
       grid-template-columns: repeat(2, 1fr);
       gap: 20px;
   }
   
   .tool-section {
       margin-bottom: 0;
   }
   
   .tool-grid {
       grid-template-columns: repeat(8, 1fr);
   }
   
   .canvas-container {
       margin: 30px 0;
   }
}

@media (max-width: 992px) {
   .nav-badge,
   .nav-links {
       display: none;
   }
   
   .title {
       font-size: 2rem;
   }
}

/* 모바일 반응형 - 정리된 버전 */
@media (max-width: 768px) {
   /* Hide Desktop / Show Mobile */
   .desktop-header {
       display: none;
   }

.color-preview-btn {
    width: 40px;
    height: 36px;
    border: 2px solid #333;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

.mobile-hue-panel {
    background: #1a1a1a;
    padding: 12px;
    margin-top: 2px !important;  /* !important 추가 */
    margin-bottom: 10px;
    border-radius: 8px;
    width: 100%;
    max-width: 320px;
}

.mobile-hue-slider {
    width: 100%;
    height: 25px;
    -webkit-appearance: none;
    border-radius: 12px;
    background: linear-gradient(to right,
        #000000,  /* 검은색 추가 */
        #333333,  /* 진한 회색 */
        hsl(0,100%,50%), 
        hsl(60,100%,50%), 
        hsl(120,100%,50%), 
        hsl(180,100%,50%), 
        hsl(240,100%,50%), 
        hsl(300,100%,50%), 
        hsl(360,100%,50%),
        #FFFFFF  /* 흰색 추가 */
    );
    outline: none;  /* 그대로 유지 */
}

.mobile-hue-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    border: 2px solid #333;
    cursor: pointer;
}
   .desktop-only {
       display: none !important;
   }
   
   .mobile-only {
       display: block !important;
   }
   
   /* Show Mobile Header */
   .mobile-header {
       display: flex;
   }
   
   /* Main padding for mobile header */
   .main {
       padding-top: 70px;
   }
   
   /* Single column for mobile */
   .editor-container {
       padding: 0 15px;
       grid-template-columns: 1fr;
   }
   
   /* Mobile tools panel order */
   .tools-panel.mobile-only {
       order: 3;
   }
   
   .canvas-container {
       order: 1;
       gap: 0 !important;  /* 30px → 0 제거! */
   }
   
   .export-panel {
       order: 2;
   }
   
   .tools-panel,
   .export-panel {
       grid-template-columns: 1fr;
       border-radius: 8px;
       padding: 15px;
   }
   
   /* 모바일 컨트롤 표시 */
   .mobile-controls {
       display: flex !important;
        margin-bottom: 2px !important;  /* 15px → 2px */
   }
   
   /* Canvas for mobile */
.canvas-wrapper {
    padding: 0;
    max-width: 320px;
    margin: 0 auto;
    background: transparent !important;
    box-shadow: none !important;
    border-radius: 0;
    position: relative;  /* 추가 - 그리드 기준점 */
    display: flex;  /* 추가 - 중앙 정렬 */
    justify-content: center;  /* 추가 - 중앙 정렬 */
}
   
   #pixelCanvas {
       pointer-events: none;
       cursor: default;
       position: relative;  /* 추가 */
   }
   
#gridCanvas {
    position: absolute;
    top: 50%;  /* 중앙 기준 */
    left: 50%;  /* 중앙 기준 */
    transform: translate(-50%, -50%);  /* 정확한 중앙 */
    opacity: 0.15;
}
   
   #guideCanvas {
       display: none;
   }
   
   /* Responsive text */
.title {
    font-size: 1.1rem;  /* 1.5rem → 1.2rem */
    white-space: nowrap;  /* 줄바꿈 방지 */
    letter-spacing: -1px;  /* 글자 간격 줄여서 공간 확보 */
}

   
   .subtitle {
       font-size: 0.9rem;
   }
   
   /* Stack preview items */
   .preview-grid {
       gap: 20px;
   }
   
   /* Responsive emoji grid */
   .emoji-grid-improved {
       grid-template-columns: repeat(4, 1fr);
       height: auto;
       min-height: 200px;
   }
   
   /* Full width buttons */
   .export-btn,
   .convert-btn {
       padding: 14px;
       font-size: 0.9rem;
   }
   
   /* Footer responsive */
   .footer-links {
       flex-direction: column;
       gap: 5px;
   }
   
   .footer-links span {
       display: none;
   }
}

@media (max-width: 576px) {
   /* Extra small devices */
   .container {
       padding: 0 10px;
   }
   
   .text-options {
       grid-template-columns: 1fr;
   }
   
   .emoji-grid-improved {
       grid-template-columns: repeat(3, 1fr);
   }
   
   .canvas-wrapper {
       max-width: 280px;
   }
   
   /* Mobile modal */
   .modal-content {
       padding: 20px;
       margin: 20px;
   }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
   .action-btn,
   .export-btn {
       min-height: 44px;
   }
   
   .color-preset {
       width: 44px;
       height: 44px;
   }
}