* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: radial-gradient(circle at top, #35c4d6 0%, #0e3f7b 48%, #0c2c61 100%);
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    color: #0f264d;
}

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.login-card {
    width: min(100%, 420px);
    border-radius: 32px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 30px 75px rgba(0, 0, 0, 0.16);
    overflow: hidden;
}

.login-brand {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 32px 24px 0;
}

.login-brand img {
    max-width: 180px;
    width: 100%;
    height: auto;
}

.login-card-body {
    padding: 32px 30px 36px;
}

.login-card-body h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    text-align: center;
}

.login-card-body p {
    margin-bottom: 28px;
    text-align: center;
    color: #51668d;
}

.form-label {
    font-size: 0.86rem;
    letter-spacing: 0.02em;
    font-weight: 600;
    color: #243a6b;
}

.form-control {
    border: 2px solid #d6e7f0;
    border-radius: 14px;
    padding: 14px 16px;
    background: #f8fbff;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: #2cb3d1;
    box-shadow: 0 0 0 0.2rem rgba(44, 179, 209, 0.18);
}

.btn-primary {
    background: linear-gradient(90deg, #0e3f7b 0%, #2357a6 100%);
    border: none;
    border-radius: 14px;
    padding: 14px 18px;
    font-weight: 600;
    box-shadow: 0 12px 24px rgba(14, 63, 123, 0.18);
}

.btn-primary:hover,
.btn-primary:focus {
    background: linear-gradient(90deg, #0a3360 0%, #1a4b8d 100%);
}

.login-help {
    margin-top: 26px;
    font-size: 0.9rem;
    text-align: center;
    color: #6f7b99;
}

.form-check {
    display: flex;
    align-items: center;
}

.form-check-input {
    width: 18px;
    height: 18px;
    margin-right: 8px;
    margin-top: 0;
    cursor: pointer;
    border: 2px solid #d6e7f0;
    border-radius: 4px;
    transition: border-color 0.2s ease, background-color 0.2s ease;
}

.form-check-input:checked {
    background-color: #2cb3d1;
    border-color: #2cb3d1;
}

.form-check-input:focus {
    border-color: #2cb3d1;
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(44, 179, 209, 0.25);
}

.form-check-label {
    font-size: 0.9rem;
    color: #6f7b99;
    cursor: pointer;
    margin-bottom: 0;
    user-select: none;
}

@media (max-width: 576px) {
    .login-card {
        border-radius: 24px;
    }

    .login-card-body {
        padding: 24px 20px 28px;
    }
}