* {
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

body {
    margin: 0;
    height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}

.auth-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 40px;
    width: 100%;
    max-width: 420px;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    color: #1a1a1a;
}

.auth-container h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #1a1a1a;
    font-size: 28px;
    font-weight: 600;
}

.auth-container input {
    width: 100%;
    padding: 14px 18px;
    margin-bottom: 18px;
    border-radius: 10px;
    border: 2px solid rgba(0, 0, 0, 0.1);
    outline: none;
    font-size: 15px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    background: #ffffff;
    color: #1a1a1a;
}

.auth-container input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.auth-container button {
    width: 100%;
    padding: 14px;
    border-radius: 10px;
    border: none;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.auth-container button:hover {
    background: linear-gradient(135deg, #5568d3 0%, #6a3f8f 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.auth-container button:active {
    transform: translateY(0);
}

.auth-links {
    margin-top: 20px;
    text-align: center;
}

.auth-links a {
    color: #667eea;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s ease;
}

.auth-links a:hover {
    color: #5568d3;
    text-decoration: underline;
}

.error {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
    color: #fff;
    padding: 14px 18px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 14px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(238, 90, 111, 0.3);
    font-weight: 500;
}