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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.auth-container {
    width: 100%;
    max-width: 450px;
}

.auth-box {
    background: rgba(45, 64, 89, 0.95);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.auth-header i {
    font-size: 3.5rem;
    color: #e94560;
    margin-bottom: 15px;
    display: block;
}

.auth-header h1 {
    font-size: 2rem;
    background: linear-gradient(45deg, #e94560, #7ec850);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
}

.auth-header p {
    color: #b0b0b0;
    font-size: 0.95rem;
}

.alert {
    padding: 12px 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
}

.alert-error {
    background: rgba(233, 69, 96, 0.2);
    color: #ff6b6b;
    border: 1px solid rgba(233, 69, 96, 0.3);
}

.alert-success {
    background: rgba(126, 200, 80, 0.2);
    color: #7ec850;
    border: 1px solid rgba(126, 200, 80, 0.3);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    color: #e0e0e0;
    font-weight: 500;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-group label i {
    color: #7ec850;
    font-size: 0.9rem;
}

.form-group input {
    padding: 12px 15px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    background: rgba(26, 26, 46, 0.6);
    color: #fff;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #7ec850;
    background: rgba(26, 26, 46, 0.8);
}

.form-group input::placeholder {
    color: #888;
}

.form-group small {
    color: #888;
    font-size: 0.8rem;
    margin-top: -5px;
}

.btn {
    padding: 14px 20px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 10px;
}

.btn-primary {
    background: linear-gradient(135deg, #e94560, #ff6b6b);
    color: white;
    box-shadow: 0 4px 15px rgba(233, 69, 96, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(233, 69, 96, 0.6);
}

.btn-primary:active {
    transform: translateY(0);
}

@media (hover: none) {
    .btn-primary:hover {
        transform: none;
    }
    
    .btn-primary:active {
        transform: scale(0.98);
    }
}

.btn-primary:active {
    transform: translateY(0);
}

.auth-footer {
    margin-top: 25px;
    text-align: center;
    color: #b0b0b0;
    font-size: 0.9rem;
}

.auth-footer a {
    color: #7ec850;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.auth-footer a:hover {
    color: #e94560;
}

@media (max-width: 600px) {
    body {
        padding: 15px;
    }
    
    .auth-container {
        max-width: 100%;
    }
    
    .auth-box {
        padding: 30px 20px;
    }
    
    .auth-header h1 {
        font-size: 1.7rem;
    }
    
    .auth-header i {
        font-size: 3rem;
    }
    
    .auth-header p {
        font-size: 0.9rem;
    }
    
    .form-group label {
        font-size: 0.85rem;
    }
    
    .form-group input {
        padding: 10px 12px;
        font-size: 0.95rem;
    }
    
    .btn {
        padding: 12px 18px;
        font-size: 0.95rem;
    }
}

@media (max-width: 400px) {
    body {
        padding: 10px;
    }
    
    .auth-box {
        padding: 25px 15px;
    }
    
    .auth-header h1 {
        font-size: 1.5rem;
    }
    
    .auth-header i {
        font-size: 2.5rem;
    }
    
    .auth-header p {
        font-size: 0.85rem;
    }
    
    .form-group input {
        padding: 10px;
        font-size: 0.9rem;
    }
    
    .btn {
        padding: 10px 15px;
        font-size: 0.9rem;
    }
    
    .auth-footer {
        font-size: 0.85rem;
    }
}