/* Classic Air Xonix Style */
:root {
    --primary: #0066ff;
    --secondary: #00aaff;
    --accent: #ffff00;
    --danger: #ff3333;
    --success: #00ff00;

    --bg-dark: #000000;
    --bg-ui: #1a1a1a;

    --text-primary: #ffffff;
    --text-secondary: #aaaaaa;
}

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

body {
    font-family: 'Arial', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    overflow: hidden;
}

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

.screen.active {
    display: flex;
}

/* Login Screen */
.login-container {
    text-align: center;
    background: var(--bg-ui);
    padding: 3rem;
    border: 3px solid var(--primary);
    border-radius: 10px;
}

.game-logo h1 {
    font-family: 'Arial Black', sans-serif;
    font-size: 4rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.2rem;
}

.logo-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    letter-spacing: 0.3rem;
    margin-bottom: 2rem;
    text-transform: uppercase;
}

.login-card {
    background: var(--bg-ui);
    padding: 0;
    min-width: 350px;
}

.login-card h2 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.input-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
}

.input-group input {
    width: 100%;
    padding: 0.8rem;
    background: var(--bg-dark);
    border: 2px solid #333;
    border-radius: 5px;
    color: var(--text-primary);
    font-size: 1rem;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary);
}

.input-group input::placeholder {
    color: #555;
}

/* Buttons */
.btn {
    padding: 0.8rem 2rem;
    font-size: 1rem;
    font-weight: bold;
    text-transform: uppercase;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--primary);
    color: #ffffff;
}

.btn-primary:hover {
    background: var(--secondary);
}

.btn-primary:active {
    transform: translateY(2px);
}

.btn-secondary {
    background: #333;
    color: var(--text-primary);
    border: 2px solid #555;
}

.btn-secondary:hover {
    background: #444;
    border-color: #666;
}

.stats-preview {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid #333;
}

.stat-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-transform: uppercase;
}

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

/* Menu Screen */
.menu-container {
    width: 90%;
    max-width: 700px;
    background: var(--bg-ui);
    padding: 2rem;
    border: 3px solid var(--primary);
    border-radius: 10px;
}

.menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #333;
}

.menu-header h1 {
    font-family: 'Arial Black', sans-serif;
    font-size: 2.5rem;
    color: var(--primary);
    text-transform: uppercase;
}

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

.player-name {
    color: var(--text-primary);
    font-weight: bold;
}

.btn-logout {
    padding: 0.5rem 1rem;
    background: var(--danger);
    border: none;
    border-radius: 5px;
    color: var(--text-primary);
    cursor: pointer;
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.8rem;
}

.btn-logout:hover {
    background: #ff5555;
}

.menu-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.menu-btn {
    padding: 1.5rem;
    background: var(--primary);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.2s;
}

.menu-btn:hover {
    background: var(--secondary);
    transform: translateY(-2px);
}

.menu-btn-text {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--text-primary);
    text-transform: uppercase;
}

.player-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.stat-card {
    background: var(--bg-dark);
    border: 2px solid #333;
    border-radius: 5px;
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-icon {
    font-size: 2rem;
}

.stat-info {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.controls-info {
    background: var(--bg-dark);
    border: 2px solid #333;
    border-radius: 5px;
    padding: 1.5rem;
}

.controls-info h3 {
    color: var(--primary);
    margin-bottom: 1rem;
    font-size: 1.2rem;
    text-transform: uppercase;
}

.control-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.control-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.control-item kbd {
    background: #222;
    border: 2px solid #444;
    border-radius: 3px;
    padding: 0.4rem 0.8rem;
    color: var(--text-primary);
    font-weight: bold;
}

.control-item span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Game Screen */
#game-screen {
    background: var(--bg-dark);
}

.game-ui {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1rem;
    z-index: 10;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.ui-top {
    display: flex;
    gap: 1rem;
}

.ui-stat {
    background: var(--bg-ui);
    border: 2px solid #333;
    border-radius: 5px;
    padding: 0.5rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    min-width: 100px;
}

.ui-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.ui-value {
    font-size: 1.2rem;
    color: var(--primary);
    font-weight: bold;
}

.ui-controls {
    display: flex;
    gap: 0.5rem;
}

.icon-btn {
    width: 45px;
    height: 45px;
    background: var(--bg-ui);
    border: 2px solid #333;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1.3rem;
    transition: all 0.2s;
}

.icon-btn:hover {
    background: #333;
    border-color: var(--primary);
}

#game-canvas {
    display: block;
    margin: 0 auto;
    border: 3px solid var(--primary);
}

/* Overlays */
.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.overlay.active {
    display: flex;
}

.overlay-content {
    text-align: center;
    background: var(--bg-ui);
    border: 3px solid var(--primary);
    border-radius: 10px;
    padding: 2rem 3rem;
    min-width: 400px;
}

.overlay-content h2 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 2rem;
    text-transform: uppercase;
}

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

.final-stats,
.level-bonus {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.final-stat,
.bonus-item {
    display: flex;
    justify-content: space-between;
    gap: 3rem;
    padding: 1rem;
    background: var(--bg-dark);
    border-radius: 5px;
}

.final-value,
.bonus-value {
    color: var(--success);
    font-size: 1.5rem;
    font-weight: bold;
}

/* Responsive */
@media (max-width: 768px) {
    .game-logo h1 {
        font-size: 2.5rem;
    }

    .login-card {
        min-width: 280px;
        padding: 1.5rem;
    }

    .player-stats {
        grid-template-columns: 1fr;
    }

    .control-grid {
        grid-template-columns: 1fr;
    }

    .ui-top {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .ui-stat {
        padding: 0.4rem 0.8rem;
        min-width: 80px;
    }

    .ui-value {
        font-size: 1rem;
    }

    .overlay-content {
        min-width: 300px;
        padding: 1.5rem;
    }
}

/* Remove all fancy animations and effects - keep it simple and classic */
.btn-glow,
.menu-btn-glow {
    display: none;
}