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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #0f1117;
    color: #e0e0e0;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-card {
    background: #1a1d27;
    border: 1px solid #2a2d3a;
    border-radius: 12px;
    padding: 40px 32px;
    text-align: center;
}

.login-card h1 {
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 4px;
}

.subtitle {
    color: #666;
    font-size: 14px;
    margin-bottom: 32px;
}

.field {
    text-align: left;
    margin-bottom: 16px;
}

.field label {
    display: block;
    font-size: 13px;
    color: #888;
    margin-bottom: 6px;
}

.field input {
    width: 100%;
    padding: 10px 12px;
    background: #0f1117;
    border: 1px solid #2a2d3a;
    border-radius: 8px;
    color: #e0e0e0;
    font-size: 15px;
    outline: none;
    transition: border-color 0.2s;
}

.field input:focus {
    border-color: #4f8cff;
}

.error {
    color: #ff4d4d;
    font-size: 13px;
    min-height: 20px;
    margin-bottom: 8px;
}

button[type="submit"] {
    width: 100%;
    padding: 12px;
    background: #4f8cff;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

button[type="submit"]:hover {
    background: #3a6fd8;
}

button[type="submit"]:disabled {
    background: #333;
    cursor: not-allowed;
}