body {
    font-family: 'Roboto', sans-serif;
    font-weight: 400;
    background-color: #f4f4f4;
    margin: 0;
    padding-top: 50px;
    background-image: url('ChatGPT Image 14 мая 2025 г., 18_31_34.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: #ffffff;
}

html {
    scroll-behavior: smooth;
}

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

h1 {
    font-family: 'Oswald', sans-serif;
    font-weight: 700;
    font-size: 40px;
    color: #1a73e8;
    padding-bottom: 10px;
}

h2 {
    font-family: 'Oswald', sans-serif;
    font-weight: 700;
    font-size: 28px;
    color: #1a73e8;
}

h3 {
    font-family: 'Oswald', sans-serif;
    font-weight: 400;
    font-size: 22px;
    color: #1a73e8;
}

h4 {
    font-family: 'Oswald', sans-serif;
    font-weight: 400;
    font-size: 18px;
    color: #ffffff;
}

p {
    font-weight: 400;
    font-size: 16px;
    color: #bbbbbb;
}

#header {
    text-align: center;
    padding: 20px;
    position: relative;
}

.header-image {
    border-radius: 20px;
    width: 120px;
    height: 120px;
    margin: 0 auto 10px;
    display: block;
}

.language-switcher {
    position: absolute;
    top: 80px;
    right: 20px;
    display: flex;
    z-index: 1100;
    gap: 2px;
}

.lang-btn {
    color: #f5f5f5;
    text-transform: uppercase;
    font-size: 14px;
    text-decoration: none;
    padding: 5px 3px;
    margin: 0;
}

.lang-btn:hover {
    text-decoration: underline;
    color: #1a73e8;
}

.wave {
    width: 100%;
    height: 60px;
    display: block;
}

section {
    padding: 30px 15px;
    text-align: center;
}

.section-1 {
    background: linear-gradient(to bottom, #252733, #27293d);
}

.section-2 {
    background: linear-gradient(to bottom, #27293d, #2e304a);
}

.section-3 {
    background: linear-gradient(to bottom, #2e304a, #3b3e5a);
}

.section-4 {
    background: linear-gradient(to bottom, #3b3e5a, #474b6b);
}

.section-5 {
    background: linear-gradient(to bottom, #474b6b, #4f5275);
}

a {
    text-decoration: none;
    color: #222222;
}

a:hover {
    color: #1a73e8;
}

.navigation {
    background-color: #e6e6e6;
    width: 100%;
    padding: 10px 0;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    border-bottom: 2px solid #ccc;
}

.navigation-a ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin: 0;
    padding: 0;
}

.navigation-a ul li a {
    color: #333;
    font-size: 16px;
    padding: 8px 12px;
    display: block;
}

.navigation-a ul li a:hover {
    background-color: #ccc;
    border-radius: 5px;
}

#about h2,
#uslugi h2,
#otzivi h2,
#cta h2 {
    padding: 20px 0 10px;
}

#about-flex,
#uslugi-grid,
#otzivi-flex {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
    max-width: 1200px;
    margin: 0 auto;
}

#about-card,
#uslugi-card,
#otzivi-card {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid #444;
    border-radius: 15px;
    padding: 20px;
    width: 30%;
    min-width: 250px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

#about-card:hover,
#uslugi-card:hover,
#otzivi-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

#otzivi-card {
    position: relative;
    text-align: left;
}

#otzivi-ava {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #1a73e8;
    margin-bottom: 10px;
}

#otzivi-card h4 {
    position: absolute;
    top: 25px;
    left: 70px;
}

#otzivi-card p {
    margin-top: 15px;
}

#otzivi-card:nth-child(1) #otzivi-ava {
    background-image: url(uifaces-popular-image\ \(1\).jpg);
    background-size: 40px 40px;
}
#otzivi-card:nth-child(2) #otzivi-ava {
    background-image: url(uifaces-popular-image\ \(2\).jpg);
    background-size: 40px 40px;
}
#otzivi-card:nth-child(3) #otzivi-ava {
    background-image: url(uifaces-popular-image\ \(8\).jpg);
    background-size: 40px 40px;
}
#otzivi-card:nth-child(4) #otzivi-ava {
    background-image: url(uifaces-popular-image\ \(3\).jpg);
    background-size: 40px 40px;
}
#otzivi-card:nth-child(5) #otzivi-ava {
    background-image: url(uifaces-popular-image\ \(9\).jpg);
    background-size: 40px 40px;
}
#otzivi-card:nth-child(6) #otzivi-ava {
    background-image: url(uifaces-popular-image\ \(4\).jpg);
    background-size: 40px 40px;
}
#otzivi-card:nth-child(7) #otzivi-ava {
    background-image: url(uifaces-popular-image\ \(10\).jpg);
    background-size: 40px 40px;
}
#otzivi-card:nth-child(8) #otzivi-ava {
    background-image: url(uifaces-popular-image\ \(5\).jpg);
    background-size: 40px 40px;
}
#otzivi-card:nth-child(9) #otzivi-ava {
    background-image: url(uifaces-popular-image\ \(11\).jpg);
    background-size: 40px 40px;
}
#otzivi-card:nth-child(10) #otzivi-ava {
    background-image: url(uifaces-popular-image\ \(12\).jpg);
    background-size: 40px 40px;
}
#otzivi-card:nth-child(11) #otzivi-ava {
    background-image: url(uifaces-popular-image\ \(6\).jpg);
    background-size: 40px 40px;
}
#otzivi-card:nth-child(12) #otzivi-ava {
    background-image: url(uifaces-popular-image\ \(13\).jpg);
    background-size: 40px 40px;
}
#otzivi-card:nth-child(13) #otzivi-ava {
    background-image: url(uifaces-popular-image\ \(16\).jpg);
    background-size: 40px 40px;
}
#otzivi-card:nth-child(14) #otzivi-ava {
    background-image: url(uifaces-popular-image\ \(14\).jpg);
    background-size: 40px 40px;
}
#otzivi-card:nth-child(15) #otzivi-ava {
    background-image: url(uifaces-popular-image\ \(7\).jpg);
    background-size: 40px 40px;
}
#otzivi-card:nth-child(16) #otzivi-ava {
    background-image: url(uifaces-popular-image\ \(15\).jpg);
    background-size: 40px 40px;
}

#cta-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    max-width: 600px;
    margin: 0 auto;
}

#cta-card {
    width: 100%;
    max-width: 280px;
    padding-top: 15px;
}

#cta-card label {
    display: block;
    font-weight: bold;
    color: #1a73e8;
    margin-bottom: 5px;
}

#cta h2 {
    padding-bottom: 5px;
}

#cta-card input {
    width: 100%;
    padding: 5px;
    border: none;
    border-bottom: 1px solid #ccc;
    background: transparent;
    color: #ffffff;
    outline: none;
}

#cta-card input::placeholder {
    color: #bbbbbb;
    text-align: left;
}

.cta-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
    width: 100%;
}

#cta-btn,
#cta-cancel-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 10px;
    font-weight: bold;
    cursor: pointer;
}

#cta-btn {
    background: #FF4500;
    color: white;
}

#cta-cancel-btn {
    background: #b0b0b0;
    color: #2b2b2b;
}

.success-message, .error-message {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: linear-gradient(to bottom, #474b6b, #4f5275);
    color: #1a73e8;
    padding: 20px;
    border-radius: 15px;
    border: 1px solid #444;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.success-message p, .error-message p {
    margin: 0;
    font-family: 'Oswald', sans-serif;
    font-weight: 400;
    font-size: 18px;
    color: #1a73e8;
}

.success-message button, .error-message button {
    padding: 5px 15px;
    border: none;
    border-radius: 10px;
    background: #b0b0b0;
    color: #2b2b2b;
    font-family: 'Roboto', sans-serif;
    font-weight: bold;
    cursor: pointer;
}

.success-message button:hover, .error-message button:hover {
    background-color: #a0a0a0;
}

.hidden {
    display: none;
}

footer {
    padding-top: 40px;
    background: linear-gradient(to bottom, #9e9e9e, #919191);
}
footer p {
    color: #222222;
}
#footer {
    position: relative;
}
#footer-flex {
    display: flex;
    padding: 20px;
    width: 42%;
}
#footer-contact {
    padding-right: 15px;
}
#footer-logo-name {
    width: 26%;
    display: flex;
    padding: 20px;
    position: absolute;
    right: 0px;
    top: 20px;
}
#footer-logo {
    width: 50px;
    height: 50px;
    background-image: url(Buildmax_logo_50x50.png);
    background-size: cover;
    border-radius: 30px;
    margin-right: 15px;
    flex-shrink: 0;
}
#footer-prava {
    border-top: 0.5px solid rgb(119, 119, 119);
    padding: 10px 20px 0px 20px;
}

#footer-prava-a {
    display: flex;
}
#footer-prava-a {
    color: #222222;
}

#footer-prava-a a:hover {
    transform: none;
    text-decoration: none;
}

@media (max-width: 768px) {
    body {
        padding-top: 0;
    }

    .navigation {
        padding: 5px 0;
    }

    .navigation-a ul {
        gap: 5px;
    }

    .navigation-a ul li a {
        font-size: 14px;
        padding: 6px 10px;
    }

    .section-1 {
        padding-top: 60px;
    }

    h1 {
        font-size: 28px;
    }

    h2 {
        font-size: 24px;
    }

    h3 {
        font-size: 18px;
    }

    h4 {
        font-size: 16px;
    }

    p {
        font-size: 14px;
    }

    #header {
        padding: 15px;
        position: relative;
    }

    .header-image {
        width: 100px;
        height: 100px;
    }

    .language-switcher {
        position: absolute;
        top: 60px;
        right: 15px;
        display: flex;
        z-index: 1100;
        gap: 2px;
    }

    .lang-btn {
        font-size: 12px;
        padding: 3px 8px;
        margin: 0;
    }

    .wave {
        height: 40px;
    }

    section {
        padding: 20px 10px;
    }

    #about-card,
    #uslugi-card,
    #otzivi-card {
        width: 100%;
        max-width: 100%;
        min-width: 0;
    }

    #otzivi-ava {
        width: 40px;
        height: 40px;
        margin-bottom: 10px;
    }

    #otzivi-card h4 {
        position: absolute;
        top: 25px;
        left: 70px;
    }

    #otzivi-card p {
        margin-top: 15px;
    }

    #cta-grid {
        flex-direction: column;
        align-items: center;
    }

    #cta-card {
        max-width: 100%;
    }

    .cta-buttons {
        flex-direction: column;
        gap: 10px;
        justify-content: center;
        align-items: center;
    }

    #cta-btn,
    #cta-cancel-btn {
        width: 100%;
        max-width: 200px;
    }

    .success-message, .error-message {
        width: 90%;
        padding: 15px;
    }

    .success-message p, .error-message p {
        font-size: 14px;
    }

    .success-message button, .error-message button {
        padding: 5px 10px;
    }

    #footer-flex {
        flex-direction: column;
        align-items: center;
        width: 100%;
        padding: 20px;
    }

    #footer-contact {
        padding-right: 0;
        text-align: center;
    }

    #footer-adress {
        text-align: center;
    }

    #footer-logo-name {
        position: static;
        width: 100%;
        flex-direction: column;
        align-items: center;
        padding: 20px;
    }

    #footer-logo {
        width: 40px;
        height: 40px;
    }

    #footer-name h312 {
        font-size: 16px;
        text-align: center;
    }

    #footer-prava {
        text-align: center;
    }

    #footer-prava-a {
        flex-direction: column;
        gap: 5px;
        justify-content: center;
        align-items: center;
    }

    #footer-prava-a p {
        display: none;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 24px;
    }

    h2 {
        font-size: 20px;
    }

    h3 {
        font-size: 16px;
    }

    h4 {
        font-size: 14px;
    }

    p {
        font-size: 12px;
    }

    #header {
        padding: 10px;
        position: relative;
    }

    .header-image {
        width: 80px;
        height: 80px;
    }

    .language-switcher {
        position: absolute;
        top: 60px;
        right: 10px;
        display: flex;
        z-index: 1100;
        gap: 2px;
    }

    .lang-btn {
        font-size: 10px;
        padding: 2px 6px;
        margin: 0;
    }

    .navigation-a ul li a {
        font-size: 12px;
        padding: 5px 8px;
    }

    .wave {
        height: 30px;
    }

    section {
        padding: 15px 8px;
    }

    #otzivi-ava {
        width: 40px;
        height: 40px;
        margin-bottom: 10px;
    }

    #otzivi-card h4 {
        position: absolute;
        top: 25px;
        left: 70px;
    }

    #otzivi-card p {
        margin-top: 15px;
    }
}