body {
    background: #000000;
    color: #e0e0e0;
    font-family: 'Inter', sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
}
.login-card {
    width: 100%;
    max-width: 360px;
    padding: 40px;
    background: #050505;
    border: 1px solid #1a1a1a;
    border-radius: 12px;
    text-align: center;
}
h1 { font-size: 20px; font-weight: 600; margin-bottom: 30px; color: #3a7a72; }
input {
    width: 100%;
    padding: 12px;
    background: #111;
    border: 1px solid #333;
    color: #fff;
    border-radius: 6px;
    margin-bottom: 20px;
    font-family: inherit;
    outline: none;
    transition: border 0.2s;
    box-sizing: border-box;
}
input:focus { border-color: #3a7a72; }
button {
    width: 100%;
    padding: 12px;
    background: #3a7a72;
    color: #000;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
}
button:hover { opacity: 0.9; }
.error { 
    color: #ff6b6b; 
    font-size: 13px; 
    margin-bottom: 20px; 
    padding: 10px;
    background: rgba(255, 107, 107, 0.1);
    border-radius: 6px;
}