:root {
    --primary-color: #00ffff;
    --secondary-color: #ff0066;
    --accent-color: #7700ff;
    --text-color: #ffffff;
    --bg-color: #0a0a20;
    --card-bg: rgba(16, 16, 35, 0.95);
}

body {
    background: var(--bg-color);
    background-image: 
        radial-gradient(circle at 50% 50%, rgba(24, 24, 48, 0.9) 0%, rgba(10, 10, 32, 0.9) 100%),
        url('data:image/svg+xml,<svg width="100" height="100" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"><rect width="100" height="100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></svg>');
    background-size: cover, 50px 50px;
    min-height: 100vh;
    font-family: 'Rajdhani', sans-serif;
    color: var(--text-color);
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, 
        rgba(0, 255, 255, 0.1) 0%,
        rgba(119, 0, 255, 0.1) 50%,
        rgba(255, 0, 102, 0.1) 100%);
    pointer-events: none;
}

.game-card {
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    padding: 40px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.game-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(
        from 0deg,
        transparent 0%,
        var(--primary-color) 25%,
        var(--accent-color) 50%,
        var(--secondary-color) 75%,
        transparent 100%
    );
    opacity: 0.1;
    animation: borderRotate 8s linear infinite;
}

@keyframes borderRotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.progress-container {
    position: relative;
    margin: 30px 0;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    overflow: hidden;
}

.progress-bar {
    height: 6px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    width: 0%;
    transition: width 0.3s ease;
    position: relative;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 20px;
    height: 100%;
    background: inherit;
    filter: blur(10px);
}

.form-control {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #ffffff;
    padding: 15px 20px;
    font-family: 'Rajdhani', sans-serif;
    font-size: 16px;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.form-control:focus {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-color);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.2);
    transform: translateY(-2px);
    color: #ffffff;
}

.form-control::placeholder {
    color: rgba(255, 255, 255, 0.5);
    font-weight: 500;
}

.form-control[readonly] {
    background: rgba(0, 255, 255, 0.1) !important;
    color: #00ffff !important;
    border: 1px solid rgba(0, 255, 255, 0.3);
    font-weight: 600;
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
    cursor: not-allowed;
}

.form-control[readonly]:focus {
    box-shadow: none;
    transform: none;
}

.form-select {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: var(--text-color);
    padding: 15px 20px;
    font-family: 'Rajdhani', sans-serif;
    font-size: 16px;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
    width: 100%;
    cursor: pointer;
}

.form-select:focus {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-color);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.2);
    transform: translateY(-2px);
}

.form-select option {
    background: var(--bg-color);
    color: var(--text-color);
    padding: 10px;
}

.btn-game {
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    border: none;
    color: var(--bg-color);
    padding: 15px 30px;
    border-radius: 8px;
    font-family: 'Orbitron', sans-serif;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    width: 100%;
    margin-top: 20px;
}

.btn-game::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-game:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 255, 255, 0.3);
}

.btn-game:hover::before {
    left: 100%;
}

.achievement {
    position: fixed;
    top: 30px;
    right: -400px;
    background: rgba(16, 16, 35, 0.95);
    border: 1px solid var(--primary-color);
    color: var(--text-color);
    padding: 20px;
    border-radius: 10px;
    backdrop-filter: blur(10px);
    transition: right 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    box-shadow: 0 5px 20px rgba(0, 255, 255, 0.2);
    display: flex;
    align-items: center;
    gap: 15px;
}

.achievement.show {
    right: 30px;
}

.achievement-icon {
    font-size: 24px;
    color: var(--primary-color);
}

.achievement-content {
    flex: 1;
}

.achievement-title {
    font-family: 'Orbitron', sans-serif;
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--primary-color);
}

.form-group {
    position: relative;
    margin-bottom: 20px;
}

.input-icon {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary-color);
    font-size: 20px;
}

#login_btn {
    color: var(--primary-color);
    text-decoration: none;
    font-family: 'Rajdhani', sans-serif;
    font-size: 16px;
    font-weight: 600;
    display: block;
    margin-top: 25px;
    text-align: center;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    padding: 10px;
    border-radius: 5px;
    background: rgba(255, 255, 255, 0.05);
    text-shadow: 0 0 5px rgba(0, 255, 255, 0.5);
}

#login_btn:hover {
    color: var(--secondary-color);
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.2);
}

/* Error Messages */
.error-message {
    background: rgba(255, 0, 0, 0.1);
    border: 1px solid rgba(255, 0, 0, 0.3);
    color: #ff4444;
    padding: 10px 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-weight: 500;
    backdrop-filter: blur(5px);
}

/* Success Messages */
.success-message {
    background: rgba(0, 255, 128, 0.1);
    border: 1px solid rgba(0, 255, 128, 0.3);
    color: #00ff80;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-weight: 500;
    backdrop-filter: blur(5px);
}