/* Word Puzzle CSS */

/* ==================== Variables ==================== */
:root {
    /* Colors */
    --wp-primary: #4CAF50;
    --wp-primary-dark: #388E3C;
    --wp-primary-light: #81C784;
    --wp-secondary: #2196F3;
    --wp-secondary-dark: #1976D2;
    --wp-secondary-light: #64B5F6;
    --wp-accent: #FF9800;
    --wp-accent-dark: #F57C00;
    --wp-success: #4CAF50;
    --wp-warning: #FF9800;
    --wp-error: #F44336;
    
    /* Backgrounds */
    --wp-bg-primary: #ffffff;
    --wp-bg-secondary: #f5f5f5;
    --wp-bg-tertiary: #e0e0e0;
    
    /* Text */
    --wp-text-primary: #212121;
    --wp-text-secondary: #757575;
    --wp-text-light: #ffffff;
    
    /* Borders */
    --wp-border: #e0e0e0;
    --wp-border-dark: #bdbdbd;
    
    /* Shadows */
    --wp-shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
    --wp-shadow-md: 0 4px 6px rgba(0,0,0,0.16);
    --wp-shadow-lg: 0 10px 20px rgba(0,0,0,0.19);
    
    /* Spacing */
    --wp-spacing-xs: 0.25rem;
    --wp-spacing-sm: 0.5rem;
    --wp-spacing-md: 1rem;
    --wp-spacing-lg: 1.5rem;
    --wp-spacing-xl: 2rem;
    
    /* Border Radius */
    --wp-radius-sm: 4px;
    --wp-radius-md: 8px;
    --wp-radius-lg: 16px;
    --wp-radius-full: 50%;
    
    /* Transitions */
    --wp-transition-fast: 0.2s ease;
    --wp-transition-normal: 0.3s ease;
    --wp-transition-slow: 0.5s ease;
}

/* Dark Theme */
[data-theme="dark"] {
    --wp-bg-primary: #1a1a1a;
    --wp-bg-secondary: #2a2a2a;
    --wp-bg-tertiary: #3a3a3a;
    --wp-text-primary: #f0f0f0;
    --wp-text-secondary: #b0b0b0;
    --wp-border: #3a3a3a;
    --wp-border-dark: #4a4a4a;
}

/* ==================== Reset & Base ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--wp-bg-secondary);
    color: var(--wp-text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

/* ==================== Header ==================== */
.wp-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--wp-spacing-md);
    background: var(--wp-bg-primary);
    box-shadow: var(--wp-shadow-sm);
    position: sticky;
    top: 0;
    z-index: 50; /* 언어 선택기와 충돌 방지를 위해 z-index 줄임 */
}

.wp-header-left,
.wp-header-right {
    display: flex;
    align-items: center;
    gap: var(--wp-spacing-sm);
}

.wp-header-center {
    flex: 1;
    text-align: center;
}

.wp-header-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0;
}

.wp-btn-back,
.wp-btn-settings {
    background: none;
    border: none;
    color: var(--wp-text-primary);
    cursor: pointer;
    padding: var(--wp-spacing-sm);
    border-radius: var(--wp-radius-md);
    transition: background-color var(--wp-transition-fast);
}

.wp-btn-back:hover,
.wp-btn-settings:hover {
    background: var(--wp-bg-secondary);
}

.wp-coin-display {
    display: flex;
    align-items: center;
    gap: var(--wp-spacing-xs);
    padding: var(--wp-spacing-xs) var(--wp-spacing-md);
    background: var(--wp-accent);
    border-radius: 20px;
    color: var(--wp-text-light);
    font-weight: bold;
    font-size: 0.9rem;
}

/* ==================== Main Content ==================== */
.wp-main {
    flex: 1;
    padding: var(--wp-spacing-lg);
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}

/* ==================== Buttons ==================== */
.wp-btn-primary,
.wp-btn-secondary {
    padding: var(--wp-spacing-sm) var(--wp-spacing-lg);
    border: none;
    border-radius: var(--wp-radius-md);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--wp-transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--wp-spacing-sm);
    text-decoration: none;
}

.wp-btn-primary {
    background: var(--wp-primary);
    color: var(--wp-text-light);
}

.wp-btn-primary:hover {
    background: var(--wp-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--wp-shadow-md);
}

.wp-btn-secondary {
    background: var(--wp-bg-tertiary);
    color: var(--wp-text-primary);
}

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

.wp-btn-large {
    padding: var(--wp-spacing-md) var(--wp-spacing-xl);
    font-size: 1.1rem;
    width: 100%;
}

.wp-btn-icon {
    font-size: 1.3rem;
}

/* ==================== Home Page ==================== */
.wp-home-container {
    max-width: 600px;
    margin: 0 auto;
}

.wp-logo-section {
    text-align: center;
    margin-bottom: var(--wp-spacing-xl);
}

.wp-logo {
    width: 150px;
    height: 150px;
    margin-bottom: var(--wp-spacing-md);
}

.wp-tagline {
    font-size: 1.3rem;
    color: var(--wp-text-secondary);
    font-weight: 400;
}

.wp-main-menu {
    display: flex;
    flex-direction: column;
    gap: var(--wp-spacing-md);
    margin-bottom: var(--wp-spacing-xl);
}

.wp-stats-preview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--wp-spacing-md);
    padding: var(--wp-spacing-lg);
    background: var(--wp-bg-primary);
    border-radius: var(--wp-radius-lg);
    box-shadow: var(--wp-shadow-sm);
}

.wp-stat-item {
    text-align: center;
}

.wp-stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--wp-text-secondary);
    margin-bottom: var(--wp-spacing-xs);
}

.wp-stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--wp-primary);
}

/* ==================== Game Page ==================== */
.wp-game-container {
    max-width: 600px;
    margin: 0 auto;
}

.wp-level-info {
    text-align: center;
    margin-bottom: var(--wp-spacing-lg);
}

.wp-level-title {
    font-size: 1.5rem;
    margin-bottom: var(--wp-spacing-sm);
}

.wp-timer {
    font-size: 1.1rem;
    color: var(--wp-text-secondary);
    font-variant-numeric: tabular-nums;
}

/* Answer Area */
.wp-answer-area {
    margin-bottom: var(--wp-spacing-xl);
    text-align: center;
}

.wp-answer-boxes {
    display: inline-flex;
    gap: var(--wp-spacing-sm);
    flex-wrap: wrap;
    justify-content: center;
    padding: var(--wp-spacing-md);
    background: var(--wp-bg-primary);
    border-radius: var(--wp-radius-lg);
    box-shadow: var(--wp-shadow-sm);
}

.wp-answer-box {
    width: 50px;
    height: 50px;
    border: 2px solid var(--wp-border);
    border-radius: var(--wp-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    background: var(--wp-bg-primary);
    cursor: pointer;
    transition: all var(--wp-transition-fast);
    position: relative;
}

.wp-answer-box.filled {
    background: var(--wp-primary);
    color: var(--wp-text-light);
    border-color: var(--wp-primary);
    animation: popIn 0.3s ease;
}

.wp-answer-box.hint {
    background: var(--wp-accent);
    color: var(--wp-text-light);
    border-color: var(--wp-accent);
    pointer-events: none;
}

.wp-answer-box:hover:not(.hint) {
    transform: scale(1.05);
    border-color: var(--wp-primary-light);
}

/* Tools */
.wp-tools {
    display: flex;
    gap: var(--wp-spacing-sm);
    justify-content: center;
    margin-bottom: var(--wp-spacing-xl);
}

.wp-tool-btn {
    display: flex;
    align-items: center;
    gap: var(--wp-spacing-xs);
    padding: var(--wp-spacing-sm) var(--wp-spacing-md);
    background: var(--wp-bg-primary);
    border: 2px solid var(--wp-border);
    border-radius: 25px;
    cursor: pointer;
    transition: all var(--wp-transition-fast);
    font-size: 0.9rem;
}

.wp-tool-btn:hover {
    background: var(--wp-primary);
    color: var(--wp-text-light);
    border-color: var(--wp-primary);
    transform: translateY(-2px);
    box-shadow: var(--wp-shadow-md);
}

.wp-tool-icon {
    font-size: 1.2rem;
}

/* Letters Grid */
.wp-letters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
    gap: var(--wp-spacing-md);
    max-width: 400px;
    margin: 0 auto;
    padding: var(--wp-spacing-lg);
    background: var(--wp-bg-primary);
    border-radius: var(--wp-radius-lg);
    box-shadow: var(--wp-shadow-sm);
}

.wp-letter-btn {
    width: 60px;
    height: 60px;
    border-radius: var(--wp-radius-full);
    border: 2px solid var(--wp-primary);
    background: var(--wp-bg-primary);
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    transition: all var(--wp-transition-fast);
    color: var(--wp-text-primary);
}

.wp-letter-btn:hover {
    background: var(--wp-primary);
    color: var(--wp-text-light);
    transform: scale(1.1);
}

.wp-letter-btn.used {
    opacity: 0.3;
    pointer-events: none;
    transform: scale(0.9);
}

/* ==================== Dialogs ==================== */
.wp-dialog {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--wp-spacing-md);
}

.wp-dialog-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

.wp-dialog-content {
    position: relative;
    background: var(--wp-bg-primary);
    padding: var(--wp-spacing-xl);
    border-radius: var(--wp-radius-lg);
    max-width: 90%;
    width: 400px;
    box-shadow: var(--wp-shadow-lg);
    animation: slideUp 0.3s ease;
}

.wp-dialog-content h3 {
    margin-bottom: var(--wp-spacing-md);
    font-size: 1.3rem;
    text-align: center;
}

.wp-dialog-info {
    text-align: center;
    color: var(--wp-text-secondary);
    margin: var(--wp-spacing-md) 0;
}

.wp-dialog-buttons {
    display: flex;
    gap: var(--wp-spacing-sm);
    margin-top: var(--wp-spacing-lg);
}

.wp-dialog-buttons button {
    flex: 1;
}

/* Completion Dialog */
.wp-completion-content {
    text-align: center;
}

.wp-completion-animation {
    position: relative;
    height: 50px;
    margin-bottom: var(--wp-spacing-md);
}

.wp-completion-title {
    font-size: 1.5rem;
    margin-bottom: var(--wp-spacing-md);
}

.wp-stars {
    font-size: 2.5rem;
    margin: var(--wp-spacing-md) 0;
}

.wp-star {
    display: inline-block;
    animation: starPop 0.5s ease;
    animation-fill-mode: both;
}

.wp-star:nth-child(1) { animation-delay: 0.1s; }
.wp-star:nth-child(2) { animation-delay: 0.3s; }
.wp-star:nth-child(3) { animation-delay: 0.5s; }

.wp-completion-stats {
    background: var(--wp-bg-secondary);
    padding: var(--wp-spacing-md);
    border-radius: var(--wp-radius-md);
    margin: var(--wp-spacing-lg) 0;
}

.wp-stat-row {
    display: flex;
    justify-content: space-between;
    padding: var(--wp-spacing-xs) 0;
    font-size: 1.1rem;
}

.wp-coins-earned {
    font-weight: bold;
    color: var(--wp-accent);
    font-size: 1.2rem;
    margin-top: var(--wp-spacing-sm);
    padding-top: var(--wp-spacing-sm);
    border-top: 1px solid var(--wp-border);
}

/* ==================== Loading & Toast ==================== */
.wp-loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.wp-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--wp-bg-primary);
    border-top-color: var(--wp-primary);
    border-radius: var(--wp-radius-full);
    animation: spin 1s linear infinite;
}

.wp-toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--wp-text-primary);
    color: var(--wp-bg-primary);
    padding: var(--wp-spacing-sm) var(--wp-spacing-lg);
    border-radius: 25px;
    box-shadow: var(--wp-shadow-md);
    z-index: 2000;
    animation: slideUp 0.3s ease;
}

/* ==================== Animations ==================== */
@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes popIn {
    0% { transform: scale(0); }
    70% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

@keyframes starPop {
    0% { 
        transform: scale(0) rotate(0deg);
        opacity: 0;
    }
    50% {
        transform: scale(1.2) rotate(180deg);
    }
    100% { 
        transform: scale(1) rotate(360deg);
        opacity: 1;
    }
}

.shake {
    animation: shake 0.5s ease;
}

/* ==================== Ads ==================== */
.wp-ad-container {
    margin: var(--wp-spacing-lg) auto;
    text-align: center;
    min-height: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--wp-bg-secondary);
    border-radius: var(--wp-radius-md);
    padding: var(--wp-spacing-sm);
}

.wp-ad-top {
    margin-top: var(--wp-spacing-md);
    margin-bottom: var(--wp-spacing-lg);
}

.wp-ad-bottom {
    margin-top: var(--wp-spacing-xl);
    margin-bottom: var(--wp-spacing-md);
}

.wp-ad-game {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--wp-bg-primary);
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    z-index: 50;
    padding: var(--wp-spacing-xs);
    display: none; /* Hidden by default, show between levels */
}

@media (min-width: 768px) {
    .wp-ad-game {
        display: none !important; /* Don't show on desktop */
    }
}

/* ==================== Responsive ==================== */
@media (max-width: 600px) {
    .wp-main {
        padding: var(--wp-spacing-md);
    }
    
    .wp-answer-box {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .wp-letter-btn {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .wp-letters-grid {
        gap: var(--wp-spacing-sm);
        padding: var(--wp-spacing-md);
    }
    
    .wp-tools {
        flex-wrap: wrap;
    }
    
    .wp-tool-btn {
        font-size: 0.85rem;
        padding: var(--wp-spacing-xs) var(--wp-spacing-sm);
    }
}