* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Lato', sans-serif;
}

/* ===== HERO 1 ===== */
.hero1 {
    position: relative;
    background-image: linear-gradient(rgba(0,0,0,0.559), rgba(0,0,0,0.541)),
                      url("../RM-images/background-images/background-inconel-page-img.png");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: #ffffff;
    height: 350px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero1 h2 {
    font-size: clamp(24px, 5vw, 60px);
    font-weight: 600;
    text-align: center;
    padding: 0 20px;
}

/* ===== HERO 2 ===== */
.hero2 {
    display: flex;
    gap: 30px;
    padding: 60px 60px;
    align-items: flex-start;
}

.hero2-div1 {
    flex: 1 1 60%;
    min-width: 0;
}

.hero2 h4 {
    font-size: 25px;
    color: #000000;
    letter-spacing: 1.0px;
    line-height: 1.4;
    margin-bottom: 20px;
}

.hero2 h5 {
    font-size: 18px;
    font-weight: 500;
    margin-top: 20px;
    letter-spacing: 1.2px;
    line-height: 1.6;
}

.hero2-div2 {
    flex: 0 0 28%;
    max-width: 28%;
    border: 2px solid #ffffff;
    align-self: flex-start;
    margin-top: 10px;
}

.hero2-div2 img {
    width: 100%;
    height: auto;
    display: block;
}

.btn-1 {
    display: inline-block;
    background-color: #ffffff;
    color: #000000;
    padding: 8px 25px;
    text-decoration: none;
    border: 2px solid #000;
    border-radius: 20px;
    font-size: 18px;
    margin-top: 30px;
    transition: 0.33s ease-out;
}

.btn-1:hover {
    background-color: #000;
    color: #fff;
}

/* ===== HERO 3 ===== */
.hero3 {
    padding: 40px 60px 60px;
}

.hero3 h3 {
    font-size: 22px;
    font-weight: 500;
    margin-top: 40px;
    margin-bottom: 20px;
}

.hero3 p {
    font-size: 18px;
    margin-top: 20px;
    line-height: 1.6;
    letter-spacing: 0.5px;
}

/* ===== PRODUCT GRID ===== */
.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1100px;
    width: 100%;
    margin: 40px auto 0;
}

.grid-item {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    cursor: pointer;
    width: 100%;
    aspect-ratio: 1 / 1;
}

.grid-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
    transition: transform 0.5s ease;
}

.grid-item:hover img {
    transform: scale(1.05);
}

.curtain-left,
.curtain-right {
    position: absolute;
    top: 0;
    width: 50%;
    height: 100%;
    background: rgba(0, 0, 0, 0.45);
    transition: transform 0.5s ease;
}

.curtain-left  { left: 0;  transform-origin: left;  }
.curtain-right { right: 0; transform-origin: right; }

.grid-item:hover .curtain-left  { transform: scaleX(0); }
.grid-item:hover .curtain-right { transform: scaleX(0); }

.grid-item span {
    position: absolute;
    bottom: 14px;
    left: 0;
    right: 0;
    text-align: center;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.5px;
    z-index: 2;
    text-shadow: 0 2px 6px rgba(0,0,0,0.7);
}

/* ===== FOOTER ===== */
.site-footer {
    background-color: #000000;
    color: white;
    padding: 40px 40px 20px;
}

.company-name {
    font-size: clamp(24px, 3.5vw, 40px);
    margin-bottom: 10px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    font-size: 15px;
    width: 100%;
}

.footer-col {
    min-width: 0;
}

.footer-col h4 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.footer-col a,
.footer-col p {
    display: block;
    margin: 7px 0;
    color: white;
    text-decoration: none;
    line-height: 1.6;
    font-size: 14px;
}

.footer-col a:hover {
    color: #aaaaaa;
}

.line, .line2 {
    border: none;
    border-top: 1px solid #333;
    margin-bottom: 14px;
}

.contact-form h4 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.contact-form form {
    width: 100%;
}

.contact-form input {
    width: 100%;
    padding: 10px 12px;
    margin-bottom: 12px;
    background-color: #111;
    color: #ffffff;
    border: 1px solid #333;
    border-radius: 4px;
    font-size: 14px;
    outline: none;
}

.contact-form input:focus {
    border-color: #666;
}

.contact-form ::placeholder {
    color: #888;
}

.contact-form button {
    width: 60%;
    font-size: 1rem;
    padding: 8px 10px;
    border-radius: 5px;
    background: #fff;
    color: #000;
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: 0.2s ease-in;
}

.contact-form button:hover {
    opacity: 0.8;
}

.footer-socials2 {
    display: flex;
    gap: 16px;
    margin-top: 30px;
}

.whatsapp-icon1,
.linkedin-icon1,
.facebook-icon1,
.instagram-icon1 {
    font-size: 28px;
    background-color: #000000;
    color: #ffffff;
    padding: 8px;
    border-radius: 8px;
    transition: 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.whatsapp-icon1:hover,
.linkedin-icon1:hover,
.facebook-icon1:hover,
.instagram-icon1:hover {
    transform: scale(1.1);
    background: #222;
}

.whatsapp-icon2 {
    position: fixed;
    bottom: 30px;
    right: -10px;
    font-size: 44px;
    color: #ffffff;
    background-color: #25D366;
    padding: 10px 30px 10px 20px;
    border-radius: 10px;
    z-index: 999;
    filter: drop-shadow(0 4px 10px rgba(0,0,0,0.3));
    transition: transform 0.2s;
}

.whatsapp-icon2:hover {
    transform: scale(1.1);
}

.site-footer2 {
    background-color: #ffffff;
    color: #000000;
    padding: 12px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.site-footer2 p {
    font-size: 13px;
    line-height: 1.5;
    margin: 0;
}


/* ======================================================
   RESPONSIVE BREAKPOINTS
   ====================================================== */

/* ===== LARGE TABLET & BELOW (≤ 1024px) — show hamburger ===== */
@media (max-width: 1024px) {

    .navbar {
        display: none;
    }

    header.header {
        justify-content: space-between;
        padding: 0 24px;
    }

    .hamburger {
        display: flex;
    }

    .hero1 {
        height: 280px;
    }

    .hero2 {
        padding: 40px 40px;
        flex-direction: column;
        gap: 30px;
    }

    .hero2-div1 {
        flex: 1 1 100%;
    }

    .hero2-div2 {
        flex: 0 0 55%;
        max-width: 55%;
        margin: 0 auto;
    }

    .hero2 h4 {
        font-size: 22px;
    }

    .hero2 h5 {
        font-size: 17px;
    }

    .hero3 {
        padding: 20px 40px 50px;
    }

    .hero3 p {
        font-size: 17px;
    }

    /* 2-column grid on tablet */
    .grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
        padding: 0;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

/* ===== TABLET PORTRAIT / LARGE PHONE (≤ 768px) ===== */
@media (max-width: 768px) {

    .header-1 {
        gap: 8px;
        padding: 6px 16px;
    }

    .mail-link1 {
        font-size: 12px;
    }

    header.header {
        padding: 0 18px;
        height: 58px;
    }

    .sub-header {
        padding: 6px 16px;
    }

    .sub-header-text1 {
        font-size: 11px;
        line-height: 1.5;
    }

    .hero1 {
        height: 220px;
    }

    .hero2 {
        padding: 30px 20px;
        gap: 24px;
    }

    .hero2-div2 {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .hero2 h4 {
        font-size: 18px;
    }

    .hero2 h5 {
        font-size: 15px;
        letter-spacing: 0.5px;
        margin-top: 12px;
    }

    .btn-1 {
        font-size: 15px;
        padding: 10px 22px;
        margin-top: 20px;
    }

    .hero3 {
        padding: 20px 20px 40px;
    }

    .hero3 p {
        font-size: 15px;
        margin-top: 14px;
        letter-spacing: 0.3px;
    }

    .hero3 h3 {
        font-size: 20px;
        margin-top: 30px;
    }

    /* 2-column grid on medium phones */
    .grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .grid-item {
        aspect-ratio: 1 / 1;
    }

    .site-footer {
        padding: 30px 18px 20px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .contact-form {
        width: 100%;
    }

    .contact-form button {
        width: 60%;
        font-size: 0.95rem;
    }

    .footer-socials2 {
        margin-top: 20px;
    }

    .site-footer2 {
        flex-direction: column;
        align-items: flex-start;
        padding: 12px 18px;
        gap: 4px;
    }

    .site-footer2 p {
        font-size: 12px;
    }
}

/* ===== SMALL PHONES (≤ 480px) ===== */
@media (max-width: 480px) {

    .hero1 {
        height: 180px;
    }

    .hero1 h2 {
        font-size: 20px;
    }

    .hero2 {
        padding: 24px 16px;
    }

    .hero2 h4 {
        font-size: 17px;
    }

    .hero2 h5 {
        font-size: 14px;
    }

    .btn-1 {
        font-size: 14px;
        padding: 9px 20px;
    }

    .hero3 {
        padding: 16px 16px 36px;
    }

    .hero3 p {
        font-size: 14px;
    }

    /* 1-column grid on small phones */
    .grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .grid-item {
        aspect-ratio: 4 / 3;
    }

    .grid-item span {
        font-size: 15px;
    }

    .mobile-menu {
        width: 85%;
    }

    .contact-form button {
        width: 80%;
    }

    .footer-grid {
        gap: 22px;
    }
}

/* ===== EXTRA SMALL PHONES (≤ 360px) ===== */
@media (max-width: 360px) {

    .hero1 h2 {
        font-size: 17px;
    }

    .hero2 h4 {
        font-size: 15px;
    }

    .hero2 h5 {
        font-size: 13px;
    }

    .btn-1 {
        font-size: 13px;
    }

    .hero3 p {
        font-size: 13px;
    }

    .grid-item span {
        font-size: 13px;
    }
}