:root {
    --primary-color: #990000;
    --secondary-color: #272727;
    --white-color: #fff;
    --light-gray: #f4f4f4;
    --font-family: 'Roboto', Tahoma, Geneva, sans-serif;
}

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

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--secondary-color);
    background-color: var(--light-gray);
}

img {
    max-width: 100%;
    height: auto;
}

a {
    color: var(--primary-color);
    text-decoration: underline;
}

a:hover,
a:focus {
    text-decoration: none;
}

p {
    margin-bottom: 1rem;
}

#container {
    background-color: var(--white-color);
    margin: 2rem auto;
    max-width: 1920px;
    padding: 0.625rem;
    width: 100%;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    width: 100%;
}

.language-bar {
    background-color: var(--primary-color);
    color: var(--white-color);
    padding: 0.5rem 0;
}

#language {
    text-align: right;
    padding: 0.5rem 0;
}

#language a {
    color: var(--white-color);
    text-decoration: none;
    font-weight: bold;
}

.logo-bar {
    background-color: var(--white-color);
    padding: 1rem 0;
    text-align: center;
}

.logo {
    max-width: 100%;
    height: auto;
}

nav {
    background-color: var(--primary-color);
    padding: 1rem 0;
}

nav ul {
    list-style-type: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin: 0;
    padding: 0;
}

nav ul li {
    margin: 0 1rem;
}

nav ul li a {
    color: var(--white-color);
    text-decoration: none;
    font-weight: 500;
    text-transform: uppercase;
    transition: all 0.3s ease;
    position: relative;
    padding: 5px 0;
}

nav ul li a::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--white-color);
    transform: scaleX(0);
    transform-origin: bottom right;
    transition: transform 0.3s ease;
}

nav ul li a:hover {
    color: var(--light-gray);
}

nav ul li a:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

main {
    padding: 2rem 0;
}

h1,
h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    line-height: 1.4;
}

section,
article,
aside {
    background-color: var(--white-color);
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
    padding: 2rem;
}

article {
    flex: 1;
    min-width: 60%;
}

aside {
    padding: 1rem;
}

aside h1 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

aside img.left {
    float: left;
    margin-right: 1rem;
    max-width: 100px;
}

.two-column-layout {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-bottom: 2rem;
    gap: 2rem;
}

.main-content {
    flex: 0 0 65%;
}

.sidebar {
    flex: 0 0 30%;
}

.full-width {
    width: 100%;
}

#services {
    margin-top: 0;
}

#international img {
    width: 100%;
    max-width: 600px;
    display: block;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-top: 2rem;
}

.contact-info .international {
    width: 100%;
    margin-bottom: 2rem;
}

.contact-info .international img {
    width: 100%;
    height: auto;
}

.contact-info .contact-method {
    flex: 1;
    min-width: 250px;
    margin: 0 1rem 1rem 0;
}

.contact-info .contact-method img {
    max-width: 100%;
    height: auto;
}

.contact-methods {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    margin-top: 2rem;
}

.contact-method {
    flex: 0 0 calc(50% - 1rem);
    max-width: 300px;
    text-align: center;
}

.contact-method img {
    max-width: 100px;
    height: auto;
}

.contact-form {
    background-color: var(--primary-color);
    color: var(--white-color);
    padding: 2rem;
    border-radius: 8px;
}

.contact-form label {
    color: var(--white-color);
}

.contact-form input,
.contact-form textarea {
    background-color: var(--primary-color);
    border: 1px solid var(--white-color);
    color: var(--white-color);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.expertise-list {
    padding-left: 1rem;
    margin-bottom: 1rem;
    list-style-type: none;
}

.expertise-list li {
    margin-bottom: 0.5rem;
    padding-left: 1rem;
    position: relative;
}

.expertise-list li::before {
    content: "•";
    color: var(--primary-color);
    font-weight: bold;
    position: absolute;
    left: 0;
}

form {
    display: grid;
    gap: 1rem;
    width: 100%;
    margin: 1rem 0;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

fieldset {
    border: 1px solid var(--secondary-color);
    padding: 1rem;
    width: 100%;
}

input,
textarea {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
}

textarea {
    resize: none;
    min-height: 150px;
}

label {
    width: 100%;
}

button {
    background-color: var(--primary-color);
    color: var(--white-color);
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #770000;
}

.btn-submit {
    width: 100%;
}

#message-result {
    margin-top: 1rem;
}

.error {
    color: red;
}

.success {
    color: green;
}

::selection {
    background: #bb0000;
    color: var(--white-color);
}

::-moz-selection {
    background: #bb0000;
    color: var(--white-color);
}

footer {
    background-color: var(--primary-color);
    color: var(--white-color);
    text-align: center;
    padding: 1rem 0;
    margin-top: 2rem;
    width: 100%;
}

footer .container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

footer a {
    margin: 0 0.5rem;
}

footer p {
    width: 100%;
    margin-top: 1rem;
}

@media (max-width: 768px) {
    nav ul {
        flex-direction: column;
        align-items: center;
    }

    nav ul li {
        margin: 0.5rem 0;
    }

    .two-column-layout,
    .main-content,
    .sidebar {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .sidebar {
        margin-left: 0;
        margin-top: 2rem;
    }

    .contact-info .contact-method,
    .contact-method {
        flex: 0 0 100%;
        margin-right: 0;
    }

    section,
    article,
    aside {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 14px;
    }

    h1 {
        font-size: 1.8rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .container {
        padding: 0 10px;
    }

    section,
    article,
    aside {
        padding: 1rem;
    }
}