.metal-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 10px;
}

/* Баннер */
.metal-banner {
    position: relative;
    width: 100%;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background-color: #16242e;
}

.metal-banner-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    background-image: url('https://metallokonstrukciispb.ru/wp-content/uploads/2025/11/temnyi-angar-fon-1.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    animation: metal-banner-zoom 20s ease-in-out infinite;
}

@keyframes metal-banner-zoom {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }
}

.metal-banner-image img {
    display: none;
}

.metal-banner-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
    padding: 40px 20px;
    max-width: 1200px;
    width: 100%;
}

.metal-banner-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    color: #fff;
}

.metal-banner-subtitle {
    font-size: 24px;
    margin-bottom: 40px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.metal-banner-button {
    display: inline-block;
    padding: 15px 40px;
    background-color: #69cd72;
    color: #fff;
    text-decoration: none;
    font-size: 18px;
    font-weight: bold;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.metal-banner-button:hover {
    background-color: #5ab863;
}


.metal-section-title {
    font-size: 36px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 60px;
    color: #16242e;
}

/* Преимущества */
.metal-advantages {
    background-color: #252525;
    padding: 80px 0;
    position: relative;
}

.metal-advantages-toggle {
    display: none;
}

.metal-advantages-title {
    color: #fff;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
    display: block;
    margin: 0 auto;
    width: 100%;
    animation: metal-advantages-titlePulse 2s ease-in-out infinite;
}

.metal-advantages-title:hover {
    transform: scale(1.05);
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
    animation: none;
}

@keyframes metal-advantages-titlePulse {

    0%,
    100% {
        transform: scale(1);
        text-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
    }

    50% {
        transform: scale(1.03);
        text-shadow: 0 0 25px rgba(255, 255, 255, 0.4);
    }
}

.metal-advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    opacity: 0;
    transform: scale(0.7) translateZ(-200px);
    transition: all 1.5s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
    position: relative;
    z-index: 0;
    perspective: 1000px;
    margin-top: 60px;
}

.metal-advantages-toggle:checked~.metal-advantages-grid {
    opacity: 1;
    transform: scale(1) translateZ(0);
    pointer-events: all;
    z-index: 1;
}

.metal-advantage-item {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(80px) scale(0.8) translateZ(-150px);
    transition: all 1s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 0;
}

.metal-advantages-toggle:checked~.metal-advantages-grid .metal-advantage-item {
    opacity: 1;
    transform: translateY(0) scale(1) translateZ(0);
    z-index: 1;
}

.metal-advantages-toggle:checked~.metal-advantages-grid .metal-advantage-item:nth-child(1) {
    transition-delay: 0.3s;
}

.metal-advantages-toggle:checked~.metal-advantages-grid .metal-advantage-item:nth-child(2) {
    transition-delay: 0.5s;
}

.metal-advantages-toggle:checked~.metal-advantages-grid .metal-advantage-item:nth-child(3) {
    transition-delay: 0.7s;
}

.metal-advantage-item:hover {
    transform: translateY(-5px);
}

.metal-advantage-fast {
    background-image: url('https://img.freepik.com/premium-photo/inside-empty-warehouse-hangar-with-large-structure-industrial-background_31965-64300.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.metal-advantage-fast::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.65);
    z-index: 1;
}

.metal-advantage-fast>* {
    position: relative;
    z-index: 2;
}

.metal-advantage-economical {
    background-image: url('https://st4.depositphotos.com/4475215/24603/i/450/depositphotos_246031522-stock-photo-empty-hangar-delivery-warehouse-render.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.metal-advantage-economical::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.65);
    z-index: 1;
}

.metal-advantage-economical>* {
    position: relative;
    z-index: 2;
}

.metal-advantage-reliable {
    background-image: url('https://img.freepik.com/premium-photo/warehouse-with-empty-hangar-white-backdrop-within-hangar_410516-12592.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.metal-advantage-reliable::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.65);
    z-index: 1;
}

.metal-advantage-reliable>* {
    position: relative;
    z-index: 2;
}

.metal-advantage-title {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #16242e;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.9);
}

.metal-advantage-text {
    font-size: 14px;
    line-height: 1.6;
    color: #000;
    text-shadow: 0.5px 0.5px 1px rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

/* Типы ангаров */
.metal-types {
    position: relative;
    background: #fff;
    padding: 80px 0;
}

.metal-types .metal-container {
    position: relative;
    z-index: 1;
}

.metal-types-tabs {
    position: relative;
    z-index: 2;
}

.metal-types-tabs-nav {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.metal-tab-btn {
    padding: 15px 40px;
    background: transparent;
    border: none;
    border-radius: 50px;
    font-size: 18px;
    font-weight: 600;
    color: #16242e;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    display: inline-block;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    animation: metal-tab-attention 2.5s ease-in-out infinite, metal-tab-shimmer 3s ease-in-out infinite;
    min-width: 180px;
    text-align: center;
    box-sizing: border-box;
    overflow: hidden;
}

.metal-tab-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 50px;
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.15) 0%, rgba(105, 205, 114, 0.15) 100%);
    opacity: 0;
    animation: metal-tab-glow 2s ease-in-out infinite;
    z-index: -1;
}

.metal-tab-btn:nth-child(1) {
    animation-delay: 0s;
}

.metal-tab-btn:nth-child(2) {
    animation-delay: 0.3s;
}

.metal-tab-btn:nth-child(3) {
    animation-delay: 0.6s;
}

.metal-tab-btn:hover {
    color: #16242e;
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    animation: metal-tab-pulse-hover 1s ease-in-out infinite;
}

.metal-types-tabs-nav input[type="radio"]:checked+.metal-tab-btn {
    background: transparent;
    color: #16242e;
    box-shadow: 0 6px 25px rgba(52, 152, 219, 0.4);
    animation: metal-tab-active 1.5s ease-in-out infinite;
}

@keyframes metal-tab-attention {

    0%,
    100% {
        transform: translateY(0) scale(1);
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    }

    25% {
        transform: translateY(-5px) scale(1.02);
        box-shadow: 0 8px 25px rgba(52, 152, 219, 0.3);
    }

    50% {
        transform: translateY(0) scale(1);
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    }

    75% {
        transform: translateY(-3px) scale(1.01);
        box-shadow: 0 6px 20px rgba(105, 205, 114, 0.25);
    }
}

@keyframes metal-tab-glow {

    0%,
    100% {
        opacity: 0;
        transform: scale(1);
    }

    50% {
        opacity: 0.6;
        transform: scale(1.05);
    }
}

@keyframes metal-tab-shimmer {
    0% {
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1), 0 0 0 0 rgba(52, 152, 219, 0);
    }

    50% {
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1), 0 0 20px 5px rgba(52, 152, 219, 0.3);
    }

    100% {
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1), 0 0 0 0 rgba(52, 152, 219, 0);
    }
}

@keyframes metal-tab-pulse-hover {

    0%,
    100% {
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    }

    50% {
        box-shadow: 0 8px 35px rgba(0, 0, 0, 0.3);
    }
}

@keyframes metal-tab-active {

    0%,
    100% {
        transform: scale(1);
        box-shadow: 0 6px 25px rgba(52, 152, 219, 0.4);
    }

    50% {
        transform: scale(1.02);
        box-shadow: 0 8px 30px rgba(52, 152, 219, 0.6);
    }
}

.metal-types-tabs-content {
    position: relative;
    min-height: 500px;
}

.metal-types-tabs input[type="radio"] {
    display: none;
}

.metal-tab-panel {
    display: none;
    animation: fadeIn 0.5s ease;
}

/* Показываем панель только если соответствующая радиокнопка выбрана */
#tab-arch:checked~.metal-types-tabs-nav~.metal-types-tabs-content #panel-arch {
    display: block;
}

#tab-straight:checked~.metal-types-tabs-nav~.metal-types-tabs-content #panel-straight {
    display: block;
}

#tab-polygon:checked~.metal-types-tabs-nav~.metal-types-tabs-content #panel-polygon {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.metal-tab-panel-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 60px 40px;
    border-radius: 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 500px;
    overflow: hidden;
}

.metal-tab-panel-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0.6) 100%);
    z-index: 1;
    border-radius: 0;
}

#panel-arch .metal-tab-panel-wrapper {
    background-image: url('https://metallokonstrukciispb.ru/wp-content/uploads/2025/11/arochnye-angary-3.png');
}

#panel-straight .metal-tab-panel-wrapper {
    background-image: url('https://metallokonstrukciispb.ru/wp-content/uploads/2025/11/pryamosten-angari2.jpg');
}

#panel-polygon .metal-tab-panel-wrapper {
    background-image: url('https://metallokonstrukciispb.ru/wp-content/uploads/2025/11/kak-postroit-angar1.png');
}

.metal-tab-info {
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 2;
    max-width: 800px;
    text-align: center;
    margin: 0 auto;
}

.metal-tab-title {
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 25px;
    color: #fff;
    line-height: 1.2;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.metal-tab-description {
    font-size: 16px;
    line-height: 1.8;
    color: #fff;
    margin-bottom: 30px;
    text-align: center;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.5);
}

.metal-tab-features {
    list-style: none;
    padding-left: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.metal-tab-features li {
    padding: 12px 0;
    padding-left: 35px;
    position: relative;
    font-size: 16px;
    color: #fff;
    transition: all 0.3s ease;
    text-align: left;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.5);
}

.metal-tab-features li:hover {
    color: #fff;
    transform: translateX(5px);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
}

.metal-tab-features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #69cd72;
    font-weight: bold;
    font-size: 20px;
    transition: transform 0.3s ease;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.metal-tab-features li:hover:before {
    transform: scale(1.3) rotate(5deg);
}

/* Технические характеристики */
.metal-specifications {
    padding: 80px 0;
    background: #fff;
}

.metal-specs-content {
    display: flex;
    flex-direction: column;
    gap: 50px;
}

.metal-spec-section {
    background: #f8f9fa;
    padding: 40px;
    border-radius: 0;
}

.metal-spec-section-title {
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 30px;
    color: #16242e;
    padding-bottom: 15px;
    border-bottom: 3px solid #3498db;
    display: inline-block;
}

.metal-spec-details {
    margin-bottom: 25px;
}

.metal-spec-detail-row {
    display: flex;
    padding: 15px 0;
    border-bottom: 1px solid #e0e0e0;
}

.metal-spec-detail-row:last-child {
    border-bottom: none;
}

.metal-spec-label {
    font-weight: 600;
    color: #16242e;
    min-width: 200px;
    flex-shrink: 0;
}

.metal-spec-value {
    color: #555;
    flex: 1;
}

.metal-spec-description {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
    text-align: justify;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #e0e0e0;
}

.metal-spec-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 25px;
}

.metal-spec-option {
    background: #fff;
    padding: 15px 20px;
    border-left: 4px solid #69cd72;
    font-size: 15px;
    color: #333;
    transition: all 0.3s ease;
}

.metal-spec-option:hover {
    transform: translateX(5px);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

/* Процесс работы */
.metal-process {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    position: relative;
    padding: 80px 0;
}

.metal-process-timeline {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    position: relative;
    overflow-x: auto;
    padding: 20px 0;
}

.metal-process-item {
    flex: 1;
    min-width: 280px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    opacity: 0;
    transform: translateY(30px);
    animation: metal-process-itemFadeIn 0.6s ease forwards;
}

.metal-process-item:nth-child(1) {
    animation-delay: 0.1s;
}

.metal-process-item:nth-child(2) {
    animation-delay: 0.2s;
}

.metal-process-item:nth-child(3) {
    animation-delay: 0.3s;
}

.metal-process-item:nth-child(4) {
    animation-delay: 0.4s;
}

.metal-process-item:nth-child(5) {
    animation-delay: 0.5s;
}

.metal-process-item-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #3498db 0%, #69cd72 100%);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 20px;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
    transition: all 0.3s ease;
    animation: metal-process-numberPulse 2s ease-in-out infinite;
}

.metal-process-item:nth-child(2) .metal-process-item-number {
    background: linear-gradient(135deg, #69cd72 0%, #3498db 100%);
}

.metal-process-item:nth-child(3) .metal-process-item-number {
    background: linear-gradient(135deg, #16242e 0%, #3498db 100%);
}

.metal-process-item:nth-child(4) .metal-process-item-number {
    background: linear-gradient(135deg, #3498db 0%, #69cd72 100%);
}

.metal-process-item:nth-child(5) .metal-process-item-number {
    background: linear-gradient(135deg, #69cd72 0%, #16242e 100%);
}

.metal-process-item:hover .metal-process-item-number {
    transform: scale(1.15);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.5);
}

.metal-process-item-content {
    flex: 1;
}

.metal-process-item-title {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #16242e;
    line-height: 1.3;
}

.metal-process-item-text {
    font-size: 15px;
    line-height: 1.7;
    color: #555;
    text-align: left;
}

.metal-process-arrow {
    position: absolute;
    right: -30px;
    top: 0;
    font-size: 32px;
    color: #3498db;
    font-weight: bold;
    animation: metal-process-arrowPulse 1.5s ease-in-out infinite;
}

.metal-process-item:last-child .metal-process-arrow {
    display: none;
}

@keyframes metal-process-itemFadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes metal-process-numberPulse {

    0%,
    100% {
        transform: scale(1);
        box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
    }

    50% {
        transform: scale(1.05);
        box-shadow: 0 6px 20px rgba(52, 152, 219, 0.5);
    }
}

@keyframes metal-process-arrowPulse {

    0%,
    100% {
        transform: translateX(0);
        opacity: 0.6;
    }

    50% {
        transform: translateX(5px);
        opacity: 1;
    }
}

/* Цены и гарантии */
.metal-pricing {
    background: #fff;
    padding: 80px 0;
}

.metal-pricing-content {
    max-width: 900px;
    margin: 0 auto;
}

.metal-pricing-text {
    background: #f8f9fa;
    padding: 60px 50px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    line-height: 1.9;
    color: #333;
}

.metal-pricing-text h3 {
    font-size: 26px;
    font-weight: bold;
    color: #16242e;
    margin-top: 40px;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid #3498db;
}

.metal-pricing-text h3:first-child {
    margin-top: 0;
}

.metal-pricing-text p {
    font-size: 16px;
    line-height: 1.9;
    color: #444;
    margin-bottom: 25px;
    text-align: justify;
}

.metal-pricing-text p:last-child {
    margin-bottom: 0;
}

.metal-pricing-text strong {
    color: #16242e;
    font-weight: 600;
}

/* Портфолио */


.metal-portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.metal-portfolio-item {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    cursor: pointer;
}

.metal-portfolio-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: transform 0.3s;
}

.metal-portfolio-item:hover img {
    transform: scale(1.1);
}

.metal-portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(22, 36, 46, 0.9), transparent);
    padding: 20px;
    color: #fff;
}

.metal-portfolio-title {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 5px;
    color: #fff;
}

.metal-portfolio-description {
    font-size: 14px;
}

/* Контакты */
.metal-contact {
    background-color: #16242e;
    color: #fff;
}

.metal-contact .metal-section-title {
    color: #fff;
}

.metal-contact-content {
    display: flex;
    gap: 40px;
}

.metal-contact-info {
    flex: 1;
    display: flex;
    gap: 40px;
    justify-content: center;
    align-items: flex-start;
}

.metal-contact-item {
    flex: 0 0 300px;
    width: 300px;
}

.metal-contact-title {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #69cd72;
}

.metal-contact-text {
    font-size: 16px;
    margin-bottom: 8px;
    color: #fff;
}


/* Адаптивность */
@media (max-width: 1200px) {
    .metal-container {
        padding: 0 15px;
    }

    section {
        padding: 60px 0;
    }
}

@media (max-width: 1024px) {
    .metal-banner {
        min-height: 500px;
    }

    .metal-banner-title {
        font-size: 40px;
    }

    .metal-banner-subtitle {
        font-size: 20px;
    }

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

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

    .metal-tab-panel-wrapper {
        padding: 30px;
        min-height: 400px;
    }

    .metal-tab-title {
        font-size: 28px;
    }

    .metal-process-item {
        min-width: 250px;
    }

    .metal-process-item-title {
        font-size: 19px;
    }

    .metal-contact-info {
        gap: 30px;
    }

    .metal-contact-item {
        flex: 0 0 280px;
        width: 280px;
    }
}

@media (max-width: 768px) {
    .metal-banner {
        min-height: 400px;
    }

    .metal-banner-content {
        padding: 30px 15px;
    }

    .metal-banner-title {
        font-size: 32px;
        margin-bottom: 15px;
    }

    .metal-banner-subtitle {
        font-size: 18px;
        margin-bottom: 30px;
    }

    .metal-banner-button {
        padding: 12px 30px;
        font-size: 16px;
    }

    section {
        padding: 50px 0;
    }

    .metal-section-title {
        font-size: 28px;
        margin-bottom: 40px;
    }

    .metal-tab-btn {
        padding: 12px 30px;
        font-size: 16px;
        min-width: 160px;
    }

    .metal-tab-panel-wrapper {
        padding: 25px;
        min-height: 350px;
    }

    .metal-tab-title {
        font-size: 24px;
        margin-bottom: 20px;
    }

    .metal-pricing-text {
        padding: 40px 35px;
    }

    .metal-pricing-text h3 {
        font-size: 22px;
    }

    .metal-tab-description {
        font-size: 15px;
        margin-bottom: 25px;
    }

    .metal-tab-features li {
        padding-left: 30px;
        font-size: 15px;
    }

    .metal-advantages-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .metal-advantage-item {
        padding: 25px;
    }

    .metal-advantage-title {
        font-size: 20px;
    }

    .metal-spec-section {
        padding: 30px;
    }

    .metal-spec-section-title {
        font-size: 24px;
    }

    .metal-spec-label {
        min-width: 150px;
    }

    .metal-spec-options {
        grid-template-columns: repeat(2, 1fr);
    }

    .metal-process-timeline {
        flex-direction: column;
        gap: 40px;
    }

    .metal-process-item {
        min-width: 100%;
    }

    .metal-process-arrow {
        display: none;
    }

    .metal-process-item-number {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }

    .metal-process-item-title {
        font-size: 18px;
        margin-bottom: 12px;
    }

    .metal-process-item-text {
        font-size: 14px;
    }

    .metal-portfolio-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .metal-portfolio-item img {
        height: 250px;
    }

    .metal-contact-content {
        flex-direction: column;
    }

    .metal-contact-info {
        flex-direction: column;
        gap: 25px;
        width: 100%;
    }

    .metal-contact-item {
        flex: 1;
        width: 100%;
        max-width: 100%;
    }

    .metal-contact-title {
        font-size: 20px;
    }

    .metal-contact-text {
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    .metal-container {
        padding: 0 10px;
    }

    .metal-banner {
        min-height: 350px;
    }

    .metal-banner-title {
        font-size: 24px;
        margin-bottom: 10px;
    }

    .metal-banner-subtitle {
        font-size: 16px;
        margin-bottom: 20px;
    }

    .metal-banner-button {
        padding: 10px 25px;
        font-size: 14px;
    }

    section {
        padding: 40px 0;
    }

    .metal-section-title {
        font-size: 24px;
        margin-bottom: 30px;
    }

    .metal-tab-btn {
        padding: 10px 20px;
        font-size: 14px;
        min-width: 140px;
    }

    .metal-types-tabs-nav {
        gap: 8px;
        margin-bottom: 30px;
    }

    .metal-tab-panel-wrapper {
        padding: 20px;
        min-height: 300px;
    }

    .metal-tab-title {
        font-size: 22px;
        margin-bottom: 15px;
    }

    .metal-tab-description {
        font-size: 14px;
        line-height: 1.6;
        margin-bottom: 20px;
    }

    .metal-tab-features li {
        font-size: 14px;
        padding: 10px 0;
        padding-left: 28px;
    }

    .metal-tab-features li:before {
        font-size: 18px;
    }

    .metal-advantage-item {
        padding: 20px;
    }

    .metal-advantage-title {
        font-size: 18px;
        margin-bottom: 12px;
    }

    .metal-advantage-text {
        font-size: 13px;
    }

    .metal-spec-section {
        padding: 25px;
    }

    .metal-spec-section-title {
        font-size: 22px;
    }

    .metal-spec-detail-row {
        flex-direction: column;
        gap: 5px;
    }

    .metal-spec-label {
        min-width: auto;
    }

    .metal-spec-options {
        grid-template-columns: 1fr;
    }

    .metal-process-item-number {
        width: 45px;
        height: 45px;
        font-size: 18px;
    }

    .metal-process-item-title {
        font-size: 18px;
        margin-bottom: 10px;
    }

    .metal-process-item-text {
        font-size: 14px;
        line-height: 1.6;
    }

    .metal-pricing-text {
        padding: 30px 25px;
    }

    .metal-pricing-text h3 {
        font-size: 20px;
        margin-top: 30px;
        margin-bottom: 20px;
    }

    .metal-pricing-text p {
        font-size: 15px;
        line-height: 1.8;
        margin-bottom: 20px;
    }

    .metal-portfolio-item img {
        height: 200px;
    }

    .metal-portfolio-title {
        font-size: 18px;
    }

    .metal-portfolio-description {
        font-size: 13px;
    }

    .metal-contact-title {
        font-size: 18px;
        margin-bottom: 10px;
    }

    .metal-contact-text {
        font-size: 14px;
    }
}