* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Roboto', sans-serif;
}

body {
    
    background: linear-gradient(135deg, #f4f7fb 0%, #dfe9f7 100%);
    min-height: 100vh;
    color: #1a1a1a;
}

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

.card {
    width: 100%;
    max-width: 620px;
    background: rgba(255, 255, 255, 0.96);
    border-radius: 22px;
    padding: 38px 32px;
    box-shadow: 0 18px 45px rgba(18, 49, 89, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.7);
}

.header {
    margin-bottom: 28px;
}

.header h1 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    color: #135aae;
    margin-bottom: 10px;
    line-height: 1.05;
}

.header p {
    font-size: 15px;
    color: #555;
    line-height: 1.5;
}

.plainte-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 600;
    color: #222;
}

.form-group input,
.form-group textarea {
    width: 100%;
    border: 1px solid #d7deea;
    border-radius: 14px;
    padding: 14px 16px;
    font-size: 15px;
    background: #f9fbff;
    color: #1a1a1a;
    outline: none;
    transition: border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.form-group textarea {
    min-height: 170px;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: #135aae;
    box-shadow: 0 0 0 4px rgba(19, 90, 174, 0.10);
    background: #ffffff;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #8c96a8;
}

.form-group small {
    font-size: 12px;
    color: #6f7785;
}

.form-actions {
    margin-top: 4px;
}

.btn-submit {
    border: none;
    background: #135aae;
    color: white;
    font-size: 15px;
    font-weight: 600;
    padding: 14px 24px;
    border-radius: 14px;
    cursor: pointer;
    transition: transform 0.2s ease, background 0.25s ease, box-shadow 0.25s ease;
    box-shadow: 0 10px 22px rgba(19, 90, 174, 0.20);
}

.btn-submit:hover {
    background: #0f4b90;
    transform: translateY(-2px);
}

.btn-submit:active {
    transform: translateY(0);
}

@media (max-width: 640px) {
    .page {
        padding: 16px;
    }

    .card {
        padding: 26px 18px;
        border-radius: 18px;
    }

    .header {
        margin-bottom: 22px;
    }

    .form-group input,
    .form-group textarea {
        font-size: 14px;
        padding: 13px 14px;
    }

    .btn-submit {
        width: 100%;
    }
}