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

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    min-height: 100vh;
    background: linear-gradient(135deg, #1a2332 0%, #3d5a80 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-wrapper {
    width: 100%;
    max-width: 420px;
}

.login-card {
    background: #fff;
    border-radius: 12px;
    padding: 40px 36px;
    box-shadow: 0 10px 40px rgba(0,0,0,.3);
}

.login-logo {
    text-align: center;
    margin-bottom: 28px;
}

.logo-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 8px;
}

.login-logo h1 {
    font-size: 1.8rem;
    font-weight: 800;
    color: #1a2332;
    letter-spacing: .5px;
}

.login-logo p {
    font-size: .85rem;
    color: #888;
    margin-top: 4px;
}

.form-group {
    margin-bottom: 18px;
}

label {
    display: block;
    font-size: .85rem;
    font-weight: 600;
    color: #444;
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid #ced4da;
    border-radius: 6px;
    font-size: .95rem;
    color: #333;
    transition: border-color .15s, box-shadow .15s;
}

.form-control:focus {
    outline: none;
    border-color: #3d5a80;
    box-shadow: 0 0 0 3px rgba(61,90,128,.18);
}

.btn-login {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #1a2332, #3d5a80);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: filter .2s;
    margin-top: 6px;
    letter-spacing: .5px;
}

.btn-login:hover { filter: brightness(1.1); }
.btn-login:active { filter: brightness(.9); }

.alert {
    padding: 10px 14px;
    border-radius: 6px;
    margin-bottom: 18px;
    font-size: .88rem;
}

.alert-danger {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.login-footer {
    text-align: center;
    margin-top: 28px;
    font-size: .78rem;
    color: #aaa;
}