/* uPirate Tower Defense Styles */
:root {
    --primary-color: #8B4513;
    --secondary-color: #DAA520;
    --accent-color: #FF6B35;
    --water-color: #4682B4;
    --text-light: #F5F5DC;
    --text-dark: #2F4F4F;
    --danger-color: #DC143C;
    --success-color: #228B22;
    --shadow: 0 4px 8px rgba(0,0,0,0.3);
}

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

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, var(--water-color) 0%, #87CEEB 100%);
    min-height: 100vh;
    overflow: hidden;
    position: relative;
}

/* Background waves animation */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255,255,255,0.1) 0%, transparent 50%);
    animation: waves 10s ease-in-out infinite;
    pointer-events: none;
    z-index: -1;
}

@keyframes waves {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(1deg); }
}

/* Screen Management */
.screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.screen.active {
    display: flex;
}

.screen.overlay {
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(5px);
    z-index: 100;
}

/* Main Menu */
.menu-container {
    background: linear-gradient(145deg, var(--primary-color), #A0522D);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    text-align: center;
    border: 3px solid var(--secondary-color);
    max-width: 500px;
}

.game-title {
    font-size: 3rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    font-weight: bold;
}

.game-subtitle {
    color: var(--secondary-color);
    font-size: 1.2rem;
    margin-bottom: 2rem;
    font-style: italic;
}

.menu-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.menu-btn {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: bold;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
    background: var(--secondary-color);
    color: var(--text-dark);
}

.menu-btn.primary {
    background: var(--accent-color);
    color: white;
    transform: scale(1.05);
}

.menu-btn:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 6px 12px rgba(0,0,0,0.4);
}

.menu-btn:active {
    transform: translateY(0);
}

.lesson-selector {
    text-align: left;
    background: rgba(255,255,255,0.1);
    padding: 1rem;
    border-radius: 10px;
    border: 2px solid var(--secondary-color);
}

.lesson-selector label {
    color: var(--text-light);
    font-weight: bold;
    display: block;
    margin-bottom: 0.5rem;
}

.lesson-selector select {
    width: 100%;
    padding: 0.5rem;
    border-radius: 5px;
    border: 1px solid var(--secondary-color);
    background: white;
    font-size: 1rem;
}

/* Instructions */
.instructions-container {
    background: linear-gradient(145deg, var(--primary-color), #A0522D);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    border: 3px solid var(--secondary-color);
    max-width: 700px;
    max-height: 80vh;
    overflow-y: auto;
}

.instructions-container h2 {
    color: var(--text-light);
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.instructions-content {
    margin-bottom: 2rem;
}

.instruction-step {
    background: rgba(255,255,255,0.1);
    padding: 1rem;
    border-radius: 10px;
    margin-bottom: 1rem;
    border-left: 4px solid var(--secondary-color);
}

.instruction-step h3 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.instruction-step p {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

/* Game HUD */
.game-hud {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 60px;
    background: linear-gradient(90deg, var(--primary-color), #A0522D);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
    border-bottom: 3px solid var(--secondary-color);
    z-index: 50;
}

.hud-left, .hud-right {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.stat {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(0,0,0,0.2);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    border: 1px solid var(--secondary-color);
}

.stat-label {
    color: var(--secondary-color);
    font-weight: bold;
    font-size: 0.9rem;
}

.stat span:last-child {
    color: white;
    font-weight: bold;
    min-width: 40px;
    text-align: right;
}

.hud-btn {
    padding: 0.5rem 1rem;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.2s ease;
}

.hud-btn:hover {
    background: #FF8C42;
    transform: scale(1.05);
}

/* Game Canvas */
#gameCanvas {
    position: fixed;
    top: 60px;
    left: 0;
    background: linear-gradient(180deg, #87CEEB 0%, var(--water-color) 100%);
    border-bottom: 3px solid var(--primary-color);
    cursor: crosshair;
}

/* Translation Input */
.translation-input {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(145deg, var(--primary-color), #A0522D);
    padding: 1rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    border: 3px solid var(--secondary-color);
    min-width: 400px;
    display: none;
    z-index: 60;
}

.translation-input.active {
    display: block;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from { transform: translateX(-50%) translateY(100%); }
    to { transform: translateX(-50%) translateY(0); }
}

.input-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 1.2rem;
    font-weight: bold;
}

#wordToTranslate {
    color: var(--text-light);
    background: rgba(255,255,255,0.1);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    border: 2px solid var(--secondary-color);
}

.arrow {
    color: var(--secondary-color);
    font-size: 1.5rem;
}

#targetLanguage {
    color: var(--secondary-color);
}

#translationField {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
    border: 2px solid var(--secondary-color);
    border-radius: 8px;
    background: white;
    text-align: center;
    outline: none;
}

#translationField:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 10px rgba(255, 107, 53, 0.3);
}

.input-timer {
    margin-top: 0.5rem;
    height: 8px;
    background: rgba(0,0,0,0.2);
    border-radius: 4px;
    overflow: hidden;
}

.time-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--success-color), var(--secondary-color), var(--danger-color));
    transition: width 0.1s linear;
    border-radius: 4px;
}

/* Pause Screen */
.pause-container {
    background: linear-gradient(145deg, var(--primary-color), #A0522D);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    text-align: center;
    border: 3px solid var(--secondary-color);
}

.pause-container h2 {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.pause-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Game Over Screen */
.gameover-container {
    background: linear-gradient(145deg, var(--primary-color), #A0522D);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    text-align: center;
    border: 3px solid var(--secondary-color);
    min-width: 400px;
}

.gameover-container h2 {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.final-stats {
    background: rgba(255,255,255,0.1);
    padding: 1rem;
    border-radius: 10px;
    margin-bottom: 1.5rem;
    border: 2px solid var(--secondary-color);
}

.stat-row {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    color: var(--text-light);
    font-weight: bold;
}

.stat-row span:last-child {
    color: var(--secondary-color);
}

.gameover-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Loading Screen */
.loading-container {
    text-align: center;
    color: var(--text-light);
}

.loading-container h2 {
    margin-bottom: 2rem;
    font-size: 2rem;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255,255,255,0.3);
    border-top: 4px solid var(--secondary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

#loadingText {
    color: var(--secondary-color);
    font-size: 1.1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .game-title {
        font-size: 2rem;
    }
    
    .menu-container {
        padding: 2rem;
        margin: 1rem;
    }
    
    .translation-input {
        min-width: 300px;
        left: 10px;
        right: 10px;
        transform: none;
    }
    
    .hud-left, .hud-right {
        gap: 1rem;
    }
    
    .stat {
        padding: 0.3rem 0.6rem;
    }
    
    #gameCanvas {
        width: 100%;
        height: calc(100vh - 60px);
    }
}

/* Animation Effects */
.damage-text {
    position: absolute;
    color: var(--danger-color);
    font-weight: bold;
    font-size: 1.2rem;
    pointer-events: none;
    animation: damageFloat 1s ease-out forwards;
}

@keyframes damageFloat {
    0% {
        opacity: 1;
        transform: translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateY(-50px);
    }
}

.gold-text {
    position: absolute;
    color: var(--secondary-color);
    font-weight: bold;
    font-size: 1rem;
    pointer-events: none;
    animation: goldFloat 1s ease-out forwards;
}

@keyframes goldFloat {
    0% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
    100% {
        opacity: 0;
        transform: translateY(-30px) scale(1.2);
    }
}

/* Tower building cursor */
.building-mode {
    cursor: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 32 32"><circle cx="16" cy="16" r="15" fill="none" stroke="%23DAA520" stroke-width="2"/><circle cx="16" cy="16" r="3" fill="%23DAA520"/></svg>') 16 16, crosshair !important;
}

/* Success/Error feedback */
.feedback-correct {
    animation: correctPulse 0.3s ease-out;
}

.feedback-wrong {
    animation: wrongShake 0.3s ease-out;
}

@keyframes correctPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); background-color: var(--success-color); }
    100% { transform: scale(1); }
}

@keyframes wrongShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}