:root {
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    --primary-purple: #8b5cf6;
    --secondary-blue: #3b82f6;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --text-light: #f8fafc;
    --text-muted: #94a3b8;
    --border-radius: 12px;
}

body {
    background-color: var(--bg-darker);
    background-image: 
        radial-gradient(at 0% 0%, rgba(139, 92, 246, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(59, 130, 246, 0.15) 0px, transparent 50%);
    color: var(--text-light);
    font-family: 'Poppins', sans-serif;
    min-height: 100vh;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

#app-container {
    width: 90%;
    max-width: 900px;
    min-height: 80vh;
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
}

/* Waiting Overlay */
.waiting-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg-deep); z-index: 1000;
}

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

/* Header & Players */
.game-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.player-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.player-avatar {
    width: 50px;
    height: 50px;
    background: rgba(139, 92, 246, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    border: 2px solid var(--primary-purple);
}

.player-details {
    display: flex;
    flex-direction: column;
}

.player-name {
    font-weight: 600;
    font-size: 1.1rem;
}

.player-wpm {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.progress-bar-container {
    flex: 1;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    margin: 0 1rem;
    overflow: hidden;
    display: flex;
}

.progress-bar {
    height: 100%;
    transition: width 0.3s ease;
}

.timer-container {
    font-size: 2rem;
    font-weight: 800;
    font-family: 'Fira Code', monospace;
    color: var(--primary-purple);
    padding: 0 2rem;
    text-shadow: 0 0 10px rgba(139, 92, 246, 0.5);
}

/* Kategori Seçimi */
.category-selection {
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.category-card {
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    cursor: pointer;
    transition: all 0.2s;
}

.category-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.category-card.selected {
    border-color: var(--primary-purple);
    background: rgba(139, 92, 246, 0.1);
}

/* Yazı Alanı */
.typing-area {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    flex: 1;
}

.text-display {
    font-family: 'Fira Code', monospace;
    font-size: 1.4rem;
    line-height: 2;
    background: rgba(0, 0, 0, 0.2);
    padding: 2rem;
    border-radius: var(--border-radius);
    min-height: 150px;
    user-select: none;
}

.text-display .word {
    padding: 2px 4px;
    border-radius: 4px;
    color: var(--text-muted);
}

.text-display .word.current {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    border-bottom: 2px solid var(--primary-purple);
}

.text-display .word.correct {
    color: var(--success);
}

.text-display .word.incorrect {
    color: var(--danger);
    text-decoration: line-through;
}

.text-display .word.error {
    background: rgba(239, 68, 68, 0.2);
    color: #ff8a8a;
}

.text-input {
    width: 100%;
    font-family: 'Fira Code', monospace;
    font-size: 1.4rem;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    color: var(--text-light);
    resize: none;
    outline: none;
    transition: border-color 0.2s;
}

.text-input:focus {
    border-color: var(--primary-purple);
}

.text-input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Result Stats */
.stat-box {
    background: rgba(0, 0, 0, 0.3);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    min-width: 120px;
    flex: 1;
}

.stat-label {
    display: block;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-purple);
}

@media (max-width: 768px) {
    .game-header {
        flex-direction: column;
        gap: 1rem;
    }
    
    .timer-container {
        order: -1;
    }
    
    .text-display, .text-input {
        font-size: 1.1rem;
        padding: 1rem;
    }
    
    .player-info {
        width: 100%;
    }
}