:root {
    --primary: #1a237e;
    --accent: #0d47a1;
    --bg: #f4f7f6;
    --white: #ffffff;
}

body {
    font-family: 'Lexend', sans-serif;
    background-color: var(--bg);
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}

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

.login-box {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
    text-align: center;
}

.logo {
    width: 80px;
    margin-bottom: 10px;
}

h1 {
    color: var(--primary);
    margin: 0;
    font-weight: 600;
}

.logo-area p {
    color: #777;
    margin-bottom: 30px;
    font-size: 0.9em;
}

.input-group {
    text-align: left;
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    margin-bottom: 5px;
    font-size: 0.85em;
    color: var(--primary);
}

.input-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 10px;
    box-sizing: border-box;
    font-size: 1em;
}

.btn-login {
    width: 100%;
    padding: 14px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.btn-login:hover {
    background: var(--accent);
}

.alert {
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 15px;
    font-size: 0.85em;
}

.alert-danger { background: #ffebee; color: #c62828; }