@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;700&display=swap');

body {
    font-family: 'Poppins', sans-serif;
    margin: 0;
    background: #000;
    color: #fff;
    text-align: center;
    padding-top: 60px;
}

.navbar {
    background: rgba(34, 34, 34, 0.459);
    padding: 1em;
    text-align: center;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.navbar a {
    color: #fff;
    margin: 0 1em;
    text-decoration: none;
    font-weight: bold;
    display: inline-block;
}

.section {
    max-width: 1200px;
    margin: 4em auto 2em auto;
    padding: 2em 1em;
    border-radius: 16px;
    box-sizing: border-box;
    background: transparent;
}

.logo-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 2em 0;
}

.logo {
    width: 1060px;
    height: 815px;
    max-width: 100vw;
    max-height: 50vh;
    object-fit: contain;
    margin: 0 auto;
    display: block;
}

.carousel-section {
    position: relative;
    width: 560px;
    margin: 0 auto 2em auto;
    text-align: center;
}

.carousel {
    position: relative;
    overflow: hidden;
    width: 560px;
    height: 315px;
    margin: 0 auto;
}

.carousel-item {
    display: none;
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    text-align: center;
}

.carousel-item.active {
    display: block;
    position: relative;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: #222;
    color: #fff;
    border: none;
    font-size: 2em;
    padding: 0.2em 0.6em;
    cursor: pointer;
    z-index: 2;
}

.carousel-btn.prev { left: 0; }
.carousel-btn.next { right: 0; }

.about-section {
    background: transparent;
    text-align: left;
    color: #fff;
    font-family: 'Poppins', sans-serif;
}

.about-title {
    font-size: 1.5em;
    font-weight: 700;
    color: #00ffe7;
    border: 2px solid #00ffe7;
    border-radius: 40px;
    padding: 0.3em 1em;
    display: inline-block;
    margin-bottom: 0.5em;
    letter-spacing: 2px;
    background: transparent;
}

.about-subtitle {
    font-size: 1.5em;
    font-style: italic;
    color: #fff;
    margin-bottom: 2em;
    margin-top: 0.5em;
    text-align: center;
    display: block;
}

.about-columns {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 2em;
    margin-top: 2em;
}

.about-focus {
    color: #00ffe7;
    letter-spacing: 1px;
}

.about-col {
    flex: 1 1 45%;
    min-width: 300px;
}

.about-list {
    list-style: disc inside;
    font-size: 1.25em;
    margin: 1em 0 0 0;
    padding: 0;
    color: #fff;
    letter-spacing: 1px;
}

.about-heading {
    color: #00ffe7;
    font-size: 2em;
    font-weight: 700;
    margin-bottom: 0.5em;
    letter-spacing: 2px;
    font-style: italic;
    display: block;
}

.about-col p {
    font-size: 1.2em;
    line-height: 1.6;
}

.bold {
    font-weight: 700;
    letter-spacing: 1px;
}

.product-section {
    text-align: left;
}

.product-header {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 1em;
}

.product-title-btn {
    border: 2px solid #b6ff4c;
    color: #b6ff4c;
    background: transparent;
    border-radius: 40px;
    padding: 0.5em 2em;
    font-size: 1.5em;
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    letter-spacing: 1px;
    margin-right: 0;
    margin-top: 0.5em;
    transition: background 0.2s, color 0.2s;
}

.evsun-logo-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 0.5em;
}

.evsun-logo {
    height: 9em;
    max-width: 90vw;
}

.product-desc {
    font-size: 1.2em;
    color: #fff;
    margin-top: 1em;
    line-height: 1.5;
    font-family: 'Poppins', sans-serif;
    text-align: left;
}

.product-highlight {
    color: #b6ff4c;
    font-weight: 700;
}

.footer-section {
    width: 100vw;
    min-width: 100%;
    text-align: center;
    color: #fff;
    background: #1111117e;
    padding: 1em 0;
    margin-top: 4em;
    border-top: 2px solid #222;
    font-family: 'Poppins', sans-serif;
    font-size: 0.80em;
    border-radius: 0;
    position: relative;
    left: 50%;
    right: 50%;
    transform: translateX(-50%);
}

.contact-section {
    max-width: 900px;
    margin: 4em auto 2em auto;
    padding: 2em 1em;
    border-radius: 16px;
    box-sizing: border-box;
    background: transparent;
    text-align: center;
}

.contact-title {
    font-size: 1.5em;
    font-weight: 700;
    color: #00ffe7;
    border: 2px solid #00ffe7;
    border-radius: 40px;
    padding: 0.3em 1em;
    display: inline-block;
    margin-bottom: 1em;
    letter-spacing: 2px;
    background: transparent;
    font-family: 'Poppins', sans-serif;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1em;
    align-items: center;
    margin-bottom: 1em;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    max-width: 500px;
    padding: 0.8em;
    border: none;
    border-radius: 8px;
    background: #22222280;
    color: #fff;
    font-size: 1em;
    font-family: 'Poppins', sans-serif;
    margin-bottom: 0.5em;
    box-shadow: none;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: #00ffe7;
    opacity: 0.7;
}

.contact-form button {
       background: #2c2c2ca1;
    color: #00ffe7;
    border: none;
    border-radius: 8px;
    padding: 0.8em 2em;
    font-size: 1.1em;

    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    transition: color 0.2s;
}

.contact-form button:hover {
    color: #b6ff4c;
}

.contact-info {
    margin-top: 1em;
    font-size: 1.1em;
    color: #fff;
    text-align: center;
}

.contact-info a {
    color: #00ffe7;
    text-decoration: none;
    margin-right: 0.3em;
}

.contact-info a:hover {
    text-decoration: underline;
}

.contact-icons-group {
    display: inline-flex;
    padding-top: 2em;
    gap:4em;
    vertical-align: middle;
}

.contact-icon {
    display: inline-flex;
    align-items: center;
    gap: 0.3em;
}

.icon {
    width: 1.2em;
    height: 1.2em;
    vertical-align: middle;
    filter: brightness(0) invert(1);
}

@media (max-width: 700px) {
    .about-columns {
        flex-direction: column;
        gap: 1em;
    }
    .about-col {
        min-width: unset;
    }
    .about-title {
        font-size: 2em;
        padding: 0.2em 0.5em;
    }

    .product-desc {
        font-size: 1em;
    }
    .product-title-btn {
        font-size: 1.2em;
        padding: 0.3em 1em;
    }
    .evsun-logo {
        height: 10em;
    }

    .product-section {
        padding: 1em;
    }

    .contact-section {
        max-width: 98vw;
        padding: 1em;
        margin: 2em auto 1em auto;
    }
    .contact-title {
        font-size: 1.5em;
    }
    .contact-form input,
    .contact-form textarea {
        max-width: 98vw;
    }
}