body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #1a1a1a;
    color: #f0f0f0;
    overflow: hidden;
}

.nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    background: #2c2c2c;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
    border-bottom: 1px solid #444;
}

.home-btn {
    text-decoration: none;
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    background: #007bff;
    color: white;
    font-weight: 600;
    transition: background-color 0.3s;
}

.home-btn:hover {
    background-color: #0056b3;
}

.game-title {
    margin: 0;
    font-size: 1.8rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

#game-container {
    display: flex;
    height: calc(100vh - 70px);
}

#map-container {
    flex: 3;
    position: relative;
    background-image: url('https://www.transparenttextures.com/patterns/dark-matter.png');
    overflow: hidden;
    border-right: 1px solid #444;
}

#map-canvas {
    width: 100%;
    height: 100%;
}

#player {
    position: absolute;
    width: 48px;
    height: 48px;
    background-image: url('https://img.icons8.com/color/48/000000/knight.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 34px;
    line-height: 48px;
    transition: all 0.5s ease-in-out;
    filter: drop-shadow(0 0 5px #ffdd57);
    transform: translate(-50%, -50%);
}

#player.player-emoji {
    background-image: none;
}

#game-info {
    flex: 1;
    background: #2c2c2c;
    padding: 2rem;
    box-shadow: -5px 0 15px rgba(0,0,0,0.3);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.difficulty-selector {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: rgba(0,170,255,0.1);
    border-radius: 8px;
    border: 1px solid #00aaff;
}

.difficulty-selector label {
    color: #00aaff;
    font-weight: bold;
    margin-right: 0.5rem;
}

.difficulty-selector select {
    padding: 0.5rem;
    border-radius: 5px;
    border: 1px solid #555;
    background: #222;
    color: #f0f0f0;
    cursor: pointer;
    font-size: 1rem;
}

.progress-info {
    margin-top: 1.5rem;
    padding: 1rem;
    background: rgba(255,255,255,0.05);
    border-radius: 8px;
    color: #ccc;
}

#location-name {
    margin-top: 0;
    color: #00aaff;
    font-size: 2rem;
    border-bottom: 2px solid #00aaff;
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

#location-description {
    color: #ccc;
    font-size: 1.1rem;
    line-height: 1.6;
}

.hidden {
    display: none !important;
}

#problem-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
}

#path-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
    z-index: 999;
}

#path-content {
    background: #333;
    padding: 2.5rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    border: 1px solid #555;
    width: 90%;
    max-width: 520px;
}

#path-content h2 {
    color: #00aaff;
    margin-top: 0;
}

#path-options {
    margin-top: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.path-option-btn {
    padding: 0.9rem 1rem;
    background: #222;
    color: #f0f0f0;
    border: 1px solid #555;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1.05rem;
    transition: transform 0.2s, background-color 0.2s, border-color 0.2s;
    text-align: left;
}

.path-option-btn:hover {
    transform: translateY(-2px);
    background-color: #2a2a2a;
    border-color: #00aaff;
}

.path-option-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

#problem-content {
    background: #333;
    padding: 2.5rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    border: 1px solid #555;
    width: 90%;
    max-width: 500px;
}

#problem-content h2 {
    color: #00aaff;
}

#problem-text {
    font-size: 2rem;
    margin: 1.5rem 0;
    color: #f0f0f0;
    font-weight: bold;
}

#answer-input {
    padding: 0.8rem;
    width: 80%;
    margin-bottom: 1.5rem;
    border-radius: 8px;
    border: 1px solid #555;
    background: #222;
    color: #f0f0f0;
    font-size: 1.2rem;
    text-align: center;
}

#submit-answer-btn {
    padding: 0.8rem 2rem;
    background: #28a745;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: background-color 0.3s;
}

#submit-answer-btn:hover {
    background-color: #218838;
}

#feedback {
    margin-top: 1rem;
    font-weight: bold;
    font-size: 1.1rem;
}

#victory-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
    z-index: 1000;
}

#victory-content {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 3rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 15px 50px rgba(0,0,0,0.6);
    border: 2px solid #ffd700;
    width: 90%;
    max-width: 600px;
    position: relative;
    overflow: hidden;
    animation: victoryPulse 2s ease-in-out infinite;
}

@keyframes victoryPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

#victory-content h1 {
    font-size: 3rem;
    color: #ffd700;
    margin: 0 0 1rem 0;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    animation: bounce 1s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.victory-message {
    font-size: 1.3rem;
    color: #fff;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.victory-stats {
    background: rgba(255,255,255,0.1);
    padding: 1rem;
    border-radius: 10px;
    margin: 1.5rem 0;
}

.victory-stats p {
    color: #ffd700;
    font-size: 1.2rem;
    font-weight: bold;
    margin: 0.5rem 0;
}

.victory-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

#play-again-btn,
.back-to-games-btn {
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.3s;
    text-decoration: none;
    display: inline-block;
}

#play-again-btn {
    background: #28a745;
    color: white;
    border: none;
}

#play-again-btn:hover {
    transform: scale(1.05);
    background: #218838;
}

.back-to-games-btn {
    background: #007bff;
    color: white;
}

.back-to-games-btn:hover {
    transform: scale(1.05);
    background: #0056b3;
}

.confetti {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    overflow: hidden;
}

@keyframes confetti-fall {
    to {
        transform: translateY(100vh) rotate(360deg);
    }
}

#start-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

#start-content {
    background: #333;
    padding: 2.5rem 3rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    border: 1px solid #00aaff;
    color: #f0f0f0;
}

#start-content h2 {
    color: #00aaff;
    margin-top: 0;
}

#start-content .difficulty-selector {
    margin: 2rem 0;
}

#start-game-btn {
    padding: 0.8rem 2.5rem;
    background: #28a745;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.2rem;
    font-weight: bold;
    transition: background-color 0.3s;
}

#start-game-btn:hover {
    background-color: #218838;
}

#start-challenge-btn {
    margin-top: 2rem;
    padding: 0.8rem 1.5rem;
    width: 100%;
    background: #007bff;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: bold;
    transition: all 0.3s;
}

#start-challenge-btn:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
}

#start-challenge-btn:disabled {
    background-color: #555;
    cursor: not-allowed;
    transform: none;
}