:root {
    --bg-dark: #0f172a;
    /* 딥 네이비 배경 */
    --bg-card: #1e293b;
    /* 다크 블루 그레이 카드 */
    --text-primary: #f8fafc;
    /* 밝은 텍스트 */
    --text-secondary: #94a3b8;
    --color-red: #ef4444;
    --color-blue: #3b82f6;
    --color-yellow: #facc15;
    --accent: #8b5cf6;
    --accent-glow: rgba(139, 92, 246, 0.4);
    --glass: rgba(15, 23, 42, 0.7);
    /* 어두운 반투명 */
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: 'Jua', 'Pretendard', sans-serif;
    overflow: hidden;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

#game-container {
    width: 100%;
    max-width: 600px;
    height: 100vh;
    display: flex;
    flex-direction: column;
    background: radial-gradient(circle at center, #1e293b 0%, #0f172a 100%);
    position: relative;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.5);
}

/* HUD Top */
#hud-top {
    height: 80px;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 20px;
    background: var(--glass);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.hud-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hud-item .label {
    font-size: 10px;
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 0.1em;
    margin-bottom: 4px;
}

#sequence-steps {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 0, 0, 0.2);
    padding: 4px 12px;
    border-radius: 20px;
}

.seq-step {
    font-size: 14px;
    opacity: 0.4;
    transition: all 0.3s;
}

.seq-step.active {
    opacity: 1;
    transform: scale(1.2);
    text-shadow: 0 0 8px currentColor;
}

.seq-step.red {
    color: var(--color-red);
}

.seq-step.blue {
    color: var(--color-blue);
}

.seq-step.yellow {
    color: var(--color-yellow);
}

.sep {
    opacity: 0.2;
    font-size: 12px;
}

.color-preview {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.3);
}

/* Symbols */
.symbol {
    width: 16px;
    height: 16px;
}

.red .symbol {
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 16px solid white;
}

.blue .symbol {
    background: white;
    border-radius: 2px;
}

.yellow .symbol {
    background: white;
    border-radius: 50%;
}

/* Game Canvas */
#game-canvas-wrapper {
    flex: 1;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    background: #0f172a;
    touch-action: none;
}

/* Mobile Controls - Re-Styled for Kids */
#mobile-controls {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    /* 중앙 배치를 위해 간격 소폭 확대 */
    z-index: 50;
    /* 모달보다 낮게 설정 */
    pointer-events: none;
    /* 컨테이너 자체는 통과하도록 */
}

.dpad-row {
    display: flex;
    gap: 10px;
}

.dpad-btn {
    width: 80px;
    /* 중앙 배치이므로 크기를 더 키움 */
    height: 80px;
    background: rgba(255, 255, 255, 0.03);
    /* 초연한 반투명 회색조 */
    border: none;
    border-radius: 50%;
    color: transparent;
    /* 아이콘 제거 효과 */
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    box-shadow: none;
    transition: all 0.1s;
    pointer-events: auto;
    /* 버튼은 클릭 가능하도록 */
    -webkit-user-select: none;
    user-select: none;
}

.dpad-btn:active {
    transform: scale(0.9);
    background: rgba(255, 255, 255, 0.08);
    /* 클릭 시에만 살짝 보임 */
}

.dpad-center {
    width: 70px;
}

/* Override .hidden for actual mobile users */
@media (hover: none) and (pointer: coarse),
(max-width: 768px) {
    #mobile-controls.mobile-only {
        display: flex;
    }
}

#game-canvas {
    image-rendering: pixelated;
    max-width: 100%;
    max-height: 100%;
}

/* UI Overlays */
#ui-overlay {
    position: absolute;
    inset: 0;
    z-index: 10;
    display: flex;
    justify-content: center;
    align-items: center;
    pointer-events: none;
    /* 클릭 가로채기 방지 */
}

.overlay-screen {
    pointer-events: auto;
    display: none;
    flex-direction: column;
    align-items: center;
    text-align: center;
    animation: fadeIn 0.5s ease;
    background: rgba(15, 23, 42, 0.9);
    padding: 40px;
    border-radius: 40px;
    border: 2px solid rgba(139, 92, 246, 0.3);
    backdrop-filter: blur(15px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.8);
}

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

#custom-menu {
    position: relative;
}

.lobby-sound-toggle {
    position: absolute;
    bottom: 12px;
    right: 12px;
    width: 38px;
    height: 38px;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.4);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    box-shadow: 0 0 10px rgba(139, 92, 246, 0.3);
    transition: all 0.2s;
    z-index: 10;
}

.lobby-sound-toggle:hover {
    transform: scale(1.1);
    background: rgba(139, 92, 246, 0.2);
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.5);
    border-color: rgba(139, 92, 246, 0.8);
}

.lobby-sound-toggle svg {
    width: 18px;
    height: 18px;
    color: var(--accent);
}

.lobby-sound-toggle:active {
    transform: scale(0.95);
}

.menu-title {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--accent);
}

.import-section {
    display: flex;
    gap: 10px;
    width: 100%;
    margin-bottom: 20px;
}

.import-section input {
    flex: 1;
    background: #0f172a;
    border: 2px solid var(--accent);
    border-radius: 12px;
    padding: 10px;
    color: var(--text-primary);
    font-family: 'Jua', sans-serif;
}

#custom-list-container {
    flex: 1;
    width: 100%;
    overflow-y: auto;
    margin-bottom: 20px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 15px;
    padding: 10px;
}

.custom-map-item {
    background: var(--bg-card);
    padding: 15px;
    border-radius: 15px;
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: default;
    transition: all 0.2s;
    border: 2px solid transparent;
    position: relative;
}

.map-btn-wrapper {
    position: relative;
}

.delete-map-btn {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 16px;
    height: 16px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    z-index: 5;
    transition: transform 0.2s;
}

.delete-map-btn:hover {
    transform: scale(1.2);
    background: #a855f7;
}

.custom-map-item:hover {
    transform: scale(1.02);
    border-color: var(--accent);
}

.map-item-info {
    text-align: left;
}

.map-item-name {
    display: block;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.map-item-creator {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.menu-buttons.vertical {
    display: flex;
    flex-direction: column;
    gap: 15px;
    width: 250px;
}

.menu-buttons.vertical .premium-btn {
    margin: 0;
    width: 100%;
}

.premium-btn.accent-light {
    background: #a855f7;
    box-shadow: 0 4px 0 #7e22ce;
}

.premium-btn {
    background: var(--accent);
    color: white;
    border: none;
    padding: 12px 32px;
    border-radius: 20px;
    font-size: 1.2rem;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.2s;
    margin: 8px;
    box-shadow: 0 4px 0 #6d28d9;
    text-transform: uppercase;
}

.premium-btn:active {
    transform: translateY(2px);
    box-shadow: 0 2px 0 #6d28d9;
}

.premium-btn.secondary {
    background: var(--bg-card);
    box-shadow: 0 4px 0 #0f172a;
}

.premium-btn.small {
    padding: 6px 12px;
    font-size: 0.8rem;
    border-radius: 8px;
    box-shadow: 0 2px 0 #0f172a;
}

.hidden {
    display: none !important;
}

#modal-message {
    margin: 20px 0;
    line-height: 1.6;
    color: var(--text-primary);
}

/* HUD Bottom */
#hud-bottom {
    height: 70px;
    background: var(--glass);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

#map-info,
#controls-help {
    display: none !important;
}

#version-info {
    font-family: 'Orbit', sans-serif;
    font-size: 0.9rem;
    color: var(--text-secondary);
    letter-spacing: 1px;
}

#game-actions {
    display: flex;
    gap: 20px;
}

#game-actions .icon-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.2);
    /* Neon Glow Effect */
    box-shadow:
        0 0 10px rgba(59, 130, 246, 0.5),
        inset 0 0 10px rgba(139, 92, 246, 0.3);
    backdrop-filter: blur(10px);
    transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    color: white;
    position: relative;
    overflow: hidden;
}

#game-actions .icon-btn svg {
    width: 28px;
    height: 28px;
    filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.5));
}

/* 개별 버튼 글로우 테마 */
#btn-undo {
    border-color: rgba(59, 130, 246, 0.5) !important;
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.4), inset 0 0 10px rgba(59, 130, 246, 0.2) !important;
}

#btn-restart {
    border-color: rgba(139, 92, 246, 0.5) !important;
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.4), inset 0 0 10px rgba(139, 92, 246, 0.2) !important;
}

#btn-exit {
    border-color: rgba(59, 130, 246, 0.5) !important;
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.4), inset 0 0 10px rgba(59, 130, 246, 0.2) !important;
}

#game-actions .icon-btn:hover {
    transform: scale(1.1) translateY(-3px);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 25px rgba(139, 92, 246, 0.6), inset 0 0 15px rgba(255, 255, 255, 0.3) !important;
    border-color: white !important;
}

#game-actions .icon-btn:active {
    transform: scale(0.95);
}

#patch-info-header {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    padding: 15px;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

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

.info-item span {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.info-item strong {
    font-size: 1rem;
    color: var(--accent-light);
}

#patch-notes-content {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 12px;
    padding: 20px;
    height: 350px;
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-primary);
    text-align: left;
    margin-bottom: 20px;
}

.patch-scroll-area {
    height: 100%;
    overflow-y: auto;
    padding-right: 10px;
}

/* 스크롤바 커스텀 */
.patch-scroll-area::-webkit-scrollbar {
    width: 6px;
}

.patch-scroll-area::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

.patch-scroll-area::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 10px;
}

#patch-notes-content p {
    margin-bottom: 10px;
}

#patch-notes-content li {
    list-style: none;
    position: relative;
    padding-left: 20px;
}

#patch-notes-content li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent);
}


#timer-display {
    font-family: 'Courier New', Courier, monospace;
    font-size: 1.2rem;
    color: var(--text-primary);
}

/* Editor Layout */
#game-canvas-wrapper.editor-mode {
    flex-direction: column;
}

.editor-only.hidden {
    display: none !important;
}

#editor-palette {
    width: 100%;
    padding: 8px;
    /* 패딩 축소 */
    background: rgba(15, 23, 42, 0.9);
    border-bottom: 2px solid var(--accent);
}

#editor-palette h3 {
    font-size: 0.7rem;
    /* 폰트 축소 */
    margin-bottom: 5px;
    color: var(--text-secondary);
    text-align: center;
}

.palette-grid {
    display: flex;
    justify-content: center;
    gap: 6px;
    /* 간격 축소 */
    flex-wrap: wrap;
    /* 줄바꿈 적용 */
}

.palette-item {
    width: 38px;
    /* 크기 축소 */
    height: 38px;
    background: var(--bg-card);
    border: 2px solid transparent;
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all 0.2s;
}

.palette-item span {
    font-size: 1.2rem;
    /* 아이콘 크기 조정 */
}

/* 에디터 모드일 때 HUD 가시성 제어 */
#game-canvas-wrapper.editor-mode~header#hud-top,
#game-canvas-wrapper.editor-mode~#hud-bottom {
    display: none !important;
}

/* 에디터 모드일 때 캔버스 영역 최대화 */
#game-canvas-wrapper.editor-mode {
    background: #020617;
}

.palette-item:hover {
    transform: scale(1.1);
}

.palette-item.active {
    border-color: var(--accent);
    background: var(--bg-dark);
}

#editor-controls {
    width: 100%;
    background: var(--glass);
    backdrop-filter: blur(15px);
    padding: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.editor-row {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
    justify-content: center;
}

#editor-controls input {
    background: #0f172a;
    border: 1px solid var(--accent);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 8px;
    flex: 1;
}

#editor-controls .premium-btn {
    font-size: 0.8rem;
    padding: 8px 16px;
}

/* Modal */
#modal-container {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: 2000;
    /* 모바일 조작기보다 압도적으로 높게 */
    display: flex;
    justify-content: center;
    align-items: center;
    pointer-events: auto;
}

#modal-container.hidden {
    display: none;
}

.modal-content {
    background: var(--bg-card);
    padding: 30px;
    border-radius: 30px;
    width: 90%;
    max-width: 400px;
    border: 4px solid var(--accent);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.modal-content h2 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

textarea {
    width: 100%;
    height: 120px;
    background: #0f172a;
    color: var(--text-primary);
    border: 1px solid var(--accent);
    border-radius: 8px;
    padding: 12px;
    margin: 16px 0;
    resize: none;
}