html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #a18cd1 0%, #fbc2eb 100%);
}
body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Segoe UI', 'Noto Sans Armenian', Arial, sans-serif;
}
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100vw;
}
.card {
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 6px 32px rgba(80, 80, 120, 0.13);
    min-width: 340px;
    max-width: 380px;
    width: 100%;
    margin: 0 auto;
    padding: 36px 28px 28px 28px;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.card-header {
    background: none;
    border: none;
    padding: 0;
    margin-bottom: 14px;
    text-align: center;
}
.card-header h3 {
    margin: 0 0 8px 0;
    font-weight: 800;
    color: #4b2994;
    font-size: 2.1rem;
    letter-spacing: 0.5px;
}
.login-description-block {
    margin-bottom: 16px;
    width: 100%;
}
.login-description {
    color: #6a6a7a;
    font-size: 0.98rem;
    margin: 0;
    text-align: center;
    line-height: 1.4;
    padding: 7px 10px;
    background: #f6f6fa;
    border-radius: 7px;
}
.card-body {
    width: 100%;
    padding: 0;
}
.input-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 18px;
    width: 100%;
}
.input-group label {
    font-size: 1.04rem;
    color: #4b2994;
    margin-bottom: 7px;
    font-weight: 600;
}
.form-control {
    border: 1.5px solid #bdbde6;
    border-radius: 8px;
    padding: 15px 14px;
    font-size: 1.13rem;
    background: #fafbfc;
    transition: border 0.2s, box-shadow 0.2s;
    width: 100%;
    box-sizing: border-box;
    box-shadow: 0 2px 8px rgba(160,140,210,0.06);
}
.form-control:focus {
    border-color: #7c3aed;
    outline: none;
    background: #fff;
    box-shadow: 0 0 0 2px #a18cd133;
}
.btn-primary {
    background: linear-gradient(90deg, #7c3aed 0%, #a18cd1 100%);
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 15px 0;
    font-size: 1.18rem;
    font-weight: 700;
    width: 100%;
    cursor: pointer;
    transition: background 0.2s, box-shadow 0.2s;
    margin-top: 8px;
    box-shadow: 0 2px 8px rgba(160,140,210,0.10);
}
.btn-primary:hover, .btn-primary:focus {
    background: linear-gradient(90deg, #a18cd1 0%, #7c3aed 100%);
    box-shadow: 0 6px 24px rgba(160,140,210,0.18);
}
.invalid-feedback {
    font-size: 0.97rem;
    color: #d9534f;
    margin-top: 3px;
}
@media (max-width: 480px) {
    .card {
        min-width: 96vw;
        max-width: 99vw;
        padding: 18px 6vw 18px 6vw;
    }
}