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

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    font-family: Arial, sans-serif;
    color: #ffffff;
    background: #0b0d0c;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    width: 100%;
    min-height: 86px;
    padding: 20px 7%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    background: rgba(10, 12, 11, 0.94);
    border-bottom: 1px solid #2b302d;
}

.logo {
    font-size: 28px;
    font-weight: 900;
    letter-spacing: 1px;
}

.logo span {
    color: #c9ff35;
}

nav {
    display: flex;
    gap: 32px;
}

nav a {
    color: #ffffff;
    text-decoration: none;
    font-weight: 600;
    transition: 0.25s;
}

nav a:hover {
    color: #c9ff35;
}

.languages {
    display: flex;
    gap: 7px;
}

.languages button {
    padding: 8px 11px;
    color: #ffffff;
    background: transparent;
    border: 1px solid #505750;
    border-radius: 7px;
    cursor: pointer;
    transition: 0.25s;
}

.languages button:hover,
.languages button.active {
    color: #0b0d0c;
    background: #c9ff35;
    border-color: #c9ff35;
}

.hero {
    min-height: 100vh;
    padding: 160px 7% 80px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background:
        linear-gradient(90deg, rgba(8, 10, 9, 0.97) 10%,
        rgba(8, 10, 9, 0.76) 60%,
        rgba(8, 10, 9, 0.45)),
        radial-gradient(circle at 85% 45%, #4c6114, transparent 32%),
        #101410;
}

.label {
    width: fit-content;
    margin-bottom: 24px;
    padding: 9px 15px;
    color: #c9ff35;
    border: 1px solid #526624;
    border-radius: 30px;
}

.hero h1 {
    max-width: 850px;
    margin-bottom: 25px;
    font-size: clamp(46px, 7vw, 86px);
    line-height: 1;
    text-transform: uppercase;
}

.description {
    max-width: 620px;
    margin-bottom: 35px;
    color: #bbc2bc;
    font-size: 21px;
    line-height: 1.6;
}

.button {
    width: fit-content;
    padding: 17px 30px;
    color: #0b0d0c;
    background: #c9ff35;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 800;
    transition: 0.25s;
}

.button:hover {
    background: #ffffff;
    transform: translateY(-3px);
}

@media (max-width: 850px) {
    header {
        align-items: flex-start;
        flex-wrap: wrap;
        padding: 18px 5%;
    }

    nav {
        order: 3;
        width: 100%;
        justify-content: center;
        gap: 18px;
    }

    .hero {
        padding: 190px 5% 70px;
    }

    .hero h1 {
        font-size: 45px;
    }

    .description {
        font-size: 18px;
    }
}

@media (max-width: 520px) {
    .logo {
        font-size: 23px;
    }

    .languages button {
        padding: 7px 8px;
    }

    nav {
        font-size: 14px;
    }

    .hero h1 {
        font-size: 38px;
    }
}.catalog {
    padding: 100px 7%;
    background: #111512;
}

.section-heading {
    margin-bottom: 45px;
}

.section-heading p {
    margin-bottom: 10px;
    color: #c9ff35;
    font-size: 15px;
    font-weight: 800;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.section-heading h2 {
    font-size: clamp(38px, 5vw, 62px);
    text-transform: uppercase;
}

.catalog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.product-card {
    min-height: 290px;
    padding: 30px;
    background: #181d19;
    border: 1px solid #343b35;
    border-radius: 14px;
    transition: 0.3s;
}

.product-card:hover {
    border-color: #c9ff35;
    transform: translateY(-7px);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.3);
}

.product-icon {
    width: 55px;
    height: 55px;
    margin-bottom: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0b0d0c;
    background: #c9ff35;
    border-radius: 50%;
    font-weight: 900;
}

.product-card h3 {
    margin-bottom: 15px;
    color: #ffffff;
    font-size: 23px;
}

.product-card p {
    color: #aeb6af;
    font-size: 16px;
    line-height: 1.6;
}

@media (max-width: 950px) {
    .catalog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .catalog {
        padding: 70px 5%;
    }

    .catalog-grid {
        grid-template-columns: 1fr;
    }

    .product-card {
        min-height: 250px;
    }
}.process {
    padding: 100px 7%;
    background:
        radial-gradient(circle at 10% 80%, #34420f, transparent 30%),
        #0b0d0c;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.process-card {
    min-height: 220px;
    padding: 28px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: rgba(24, 29, 25, 0.9);
    border: 1px solid #343b35;
    border-radius: 14px;
    transition: 0.3s;
}

.process-card:hover {
    border-color: #c9ff35;
    transform: translateY(-6px);
}

.process-card span {
    color: #c9ff35;
    font-size: 46px;
    font-weight: 900;
}

.process-card h3 {
    max-width: 220px;
    font-size: 21px;
    line-height: 1.3;
}

@media (max-width: 950px) {
    .process-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 560px) {
    .process {
        padding: 70px 5%;
    }

    .process-grid {
        grid-template-columns: 1fr;
    }

    .process-card {
        min-height: 180px;
    }
}.advantages {
    padding: 110px 7%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    background: #c9ff35;
    color: #0b0d0c;
}

.small-title {
    margin-bottom: 15px;
    font-size: 15px;
    font-weight: 900;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.advantages h2 {
    max-width: 650px;
    margin-bottom: 25px;
    font-size: clamp(40px, 5vw, 65px);
    line-height: 1;
    text-transform: uppercase;
}

.advantages-text {
    max-width: 600px;
    font-size: 19px;
    line-height: 1.6;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border: 2px solid #0b0d0c;
    border-radius: 15px;
    overflow: hidden;
}

.advantages-grid article {
    min-height: 190px;
    padding: 25px 18px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-right: 2px solid #0b0d0c;
}

.advantages-grid article:last-child {
    border-right: none;
}

.advantages-grid strong {
    margin-bottom: 15px;
    font-size: 43px;
}

.advantages-grid p {
    font-weight: 700;
    line-height: 1.4;
}

@media (max-width: 1000px) {
    .advantages {
        grid-template-columns: 1fr;
        gap: 45px;
    }
}

@media (max-width: 600px) {
    .advantages {
        padding: 75px 5%;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .advantages-grid article {
        min-height: 140px;
        border-right: none;
        border-bottom: 2px solid #0b0d0c;
    }

    .advantages-grid article:last-child {
        border-bottom: none;
    }
}.faq {
    padding: 100px 7%;
    background: #111512;
}

.faq-list {
    max-width: 950px;
}

.faq details {
    margin-bottom: 14px;
    background: #191e1a;
    border: 1px solid #353c36;
    border-radius: 12px;
    overflow: hidden;
    transition: 0.3s;
}

.faq details[open] {
    border-color: #c9ff35;
}

.faq summary {
    position: relative;
    padding: 24px 65px 24px 25px;
    color: #ffffff;
    font-size: 19px;
    font-weight: 800;
    cursor: pointer;
    list-style: none;
}

.faq summary::-webkit-details-marker {
    display: none;
}

.faq summary::after {
    content: "+";
    position: absolute;
    top: 50%;
    right: 25px;
    color: #c9ff35;
    font-size: 30px;
    transform: translateY(-50%);
}

.faq details[open] summary::after {
    content: "−";
}

.faq details p {
    padding: 0 25px 25px;
    color: #adb6ae;
    font-size: 17px;
    line-height: 1.6;
}

@media (max-width: 600px) {
    .faq {
        padding: 70px 5%;
    }

    .faq summary {
        font-size: 17px;
    }
}.hero {
    background:
        linear-gradient(
            90deg,
            rgba(8, 10, 9, 0.98) 5%,
            rgba(8, 10, 9, 0.88) 42%,
            rgba(8, 10, 9, 0.25) 100%
        ),
url("/static/images/copper-elbows.png") center / cover no-repeat;
}

.product-card {
    min-height: auto;
    overflow: hidden;
}

.product-card .product-icon {
    margin-bottom: 18px;
}

.product-image {
    width: 100%;
    height: 210px;
    margin-bottom: 24px;
    display: block;
    object-fit: cover;
    object-position: center;
    background: #0b0d0c;
    border-radius: 10px;
    filter: saturate(0.92) contrast(1.05);
    transition: transform 0.4s ease;
}

.product-card:hover .product-image {
    transform: scale(1.04);
}

@media (max-width: 600px) {
    .product-image {
        height: 230px;
     }
}

.product-card::before {
    content: "";
    width: 100%;
    height: 210px;
    margin-bottom: 24px;
    display: block;
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    border-radius: 10px;
    transition: transform 0.4s ease;
}

.product-card:hover::before {
    transform: scale(1.03);
}

.product-card:nth-child(1)::before {
    background-image: url("/static/images/contact-tips.png");
}

.product-card:nth-child(2)::before {
    background-image: url("/static/images/copper-braids.png");
}

.product-card:nth-child(3)::before {
    background-image: url("/static/images/copper-caps.png");
}

.product-card:nth-child(4)::before {
    background-image: url("/static/images/welding-cables.png");
}

.product-card:nth-child(5)::before {
    background-image: url("/static/images/hero-weldpro.png");
}

.product-card:nth-child(6)::before {
    background-image: url("/static/images/copper-components.png");
}

@media (max-width: 600px) {
    .product-card::before {
        height: 240px;
    }
}html {
    scroll-padding-top: 100px;
}.contact {
    padding: 110px 7%;
    background:
        radial-gradient(circle at 10% 100%, rgba(188, 255, 32, 0.13), transparent 35%),
        #0d120f;
}

.contact .section-heading {
    margin-bottom: 48px;
}

.contact .section-heading p {
    color: #baff20;
    font-size: 16px;
    font-weight: 800;
    letter-spacing: 3px;
    margin-bottom: 14px;
}

.contact .section-heading h2 {
    max-width: 850px;
    color: #fff;
    font-size: clamp(42px, 6vw, 76px);
    line-height: 0.95;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.contact-card {
    min-width: 0;
    min-height: 210px;
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    color: #fff;
    text-decoration: none;
    background: #151b17;
    border: 1px solid #354038;
    border-radius: 16px;
    transition: 0.3s ease;
}

.contact-card:hover {
    border-color: #baff20;
    transform: translateY(-5px);
}

.contact-card span {
    color: #baff20;
    font-size: 32px;
    font-weight: 900;
}

.contact-card h3 {
    margin: 30px 0 10px;
    font-size: 24px;
}

.contact-card p {
    color: #c7d1ca;
    font-size: 17px;
    line-height: 1.5;
    overflow-wrap: anywhere;
}

@media (max-width: 700px) {
    .contact {
        padding: 80px 6%;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .contact-card {
        min-height: 180px;
    }
}#contact {
    scroll-margin-top: 100px;
    padding-bottom: 220px;
}.cart-button {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 1001;
    padding: 14px 18px;
    display: flex;
    align-items: center;
    gap: 9px;
    color: #080a09;
    background: #baff20;
    border: 0;
    border-radius: 14px;
    font-weight: 800;
    font-size: 16px;
    cursor: pointer;
    box-shadow: 0 10px 35px rgba(0, 0, 0, 0.4);
}

.cart-button b {
    min-width: 25px;
    height: 25px;
    display: grid;
    place-items: center;
    color: white;
    background: #080a09;
    border-radius: 50%;
}

.cart-overlay {
    position: fixed;
    inset: 0;
    z-index: 1100;
    visibility: hidden;
    opacity: 0;
    background: rgba(0, 0, 0, 0.7);
    transition: 0.3s;
}

.cart-panel {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 1101;
    width: min(440px, 100%);
    height: 100vh;
    padding: 25px;
    display: flex;
    flex-direction: column;
    color: white;
    background: #101612;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.cart-panel.open {
    transform: translateX(0);
}

.cart-overlay.open {
    visibility: visible;
    opacity: 1;
}

.cart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 20px;
    border-bottom: 1px solid #354038;
}

.cart-header h2 {
    font-size: 30px;
}

.cart-header button {
    width: 42px;
    height: 42px;
    color: white;
    background: transparent;
    border: 1px solid #354038;
    border-radius: 50%;
    font-size: 28px;
    cursor: pointer;
}

.cart-items {
    flex: 1;
    overflow-y: auto;
    padding: 20px 0;
}

.cart-empty {
    margin: auto;
    color: #aab5ad;
    text-align: center;
}

.cart-footer {
    padding-top: 20px;
    border-top: 1px solid #354038;
}

.cart-footer p {
    display: flex;
    justify-content: space-between;
    margin-bottom: 18px;
    font-size: 18px;
}

.cart-order {
    width: 100%;
    padding: 16px;
    display: block;
    color: #080a09;
    background: #baff20;
    border-radius: 10px;
    text-align: center;
    text-decoration: none;
    font-weight: 900;
}

@media (max-width: 600px) {
    .cart-button {
        right: 14px;
        bottom: 14px;
    }
}.add-to-cart {
    width: 100%;
    margin-top: 22px;
    padding: 14px;
    color: #080a09;
    background: #baff20;
    border: 0;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 900;
    cursor: pointer;
}

.add-to-cart:hover {
    background: #d1ff67;
}

.cart-item {
    margin-bottom: 12px;
    padding: 16px;
    background: #18201b;
    border: 1px solid #354038;
    border-radius: 12px;
}

.cart-item h4 {
    margin-bottom: 14px;
    font-size: 17px;
}

.cart-quantity {
    display: flex;
    align-items: center;
    gap: 12px;
}

.cart-quantity button {
    width: 34px;
    height: 34px;
    color: #080a09;
    background: #baff20;
    border: 0;
    border-radius: 7px;
    font-size: 20px;
    font-weight: 900;
    cursor: pointer;
}

.cart-remove {
    margin-left: auto;
    color: #ff7777 !important;
    background: transparent !important;
}