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

html, body { 
    width: 100%; 
    height: 100%; 
    overflow: hidden; 
    font-family: 'Segoe UI', sans-serif; 
}

body { 
    background: #050510;
    margin: 0;
    overflow: hidden;
    position: relative;
}

canvas {
    position: fixed !important;
    top: 0;
    left: 0;
    width: 100% !important;
    height: 100% !important;
    z-index: 1;
}

.auth-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    width: 100%;
    max-width: 400px;
    padding: 0 20px;
}

.auth-card {
    background: rgba(10, 10, 25, 0.2);
    padding: 2.5rem;
    border-radius: 12px;
    backdrop-filter: blur(20px);
    box-shadow: 0 0 40px rgba(0, 100, 255, 0.1);
    border: 1px solid rgba(0, 150, 255, 0.1);
    color: #fff;
}

.auth-header h3 {
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 1.75rem;
    background: linear-gradient(90deg, #fff, #0af);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 20px rgba(0, 150, 255, 0.3);
}

.form-control {
    background: rgba(0, 50, 100, 0.1) !important;
    border: 1px solid rgba(0, 150, 255, 0.1) !important;
    color: #fff !important;
    transition: all 0.3s;
}

.form-control:focus {
    border-color: rgba(0, 150, 255, 0.3) !important;
    box-shadow: 0 0 15px rgba(0, 150, 255, 0.1) !important;
    outline: none !important;
}

.btn-primary {
    background: linear-gradient(45deg, #0050ff, #00a0ff) !important;
    color: #fff !important;
    cursor: pointer;
    transition: all 0.3s;
    border: none !important;
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 100, 255, 0.3) !important;
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent,
        rgba(255, 255, 255, 0.1),
        transparent
    );
    transform: rotate(45deg);
    transition: 0.5s;
}

.btn-primary:hover::after {
    left: 100%;
}

.form-label {
    color: #fff !important;
}

.auth-footer p {
    color: #fff;
}

.auth-footer a {
    color: #0af;
    text-decoration: none;
}

.auth-footer a:hover {
    text-decoration: underline;
}

.alert {
    background: rgba(0, 50, 100, 0.2) !important;
    border: 1px solid rgba(0, 150, 255, 0.1) !important;
    color: #fff !important;
}

.alert-success {
    border-color: rgba(40, 167, 69, 0.25) !important;
}

.alert-danger {
    border-color: rgba(220, 53, 69, 0.2) !important;
}

.brand-logo {
    filter: drop-shadow(0 0 10px rgba(0, 150, 255, 0.3));
}