/* ===================
   RESET & BASE
=================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    font-family: 'Segoe UI', Arial, sans-serif;
}
body.no-scroll {
    overflow: hidden;
}

/* ===================
   TOP HEADER
=================== */
.top-header {
    background: #0b4f9c;
    color: #fff;
    padding: 6px 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.top-email {
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 7px;
}
.top-social {
    display: flex;
    gap: 8px;
}
.top-social a {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-decoration: none;
    font-size: 12px;
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.25);
    transition: 0.3s;
}
.top-social a:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-2px);
}

/* ===================
   MAIN HEADER
=================== */
.main-header {
    background: #fff;
    padding: 10px 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 12px rgba(11,79,156,0.10);
    border-bottom: 2px solid #0b4f9c;
    position: sticky;
    top: 0;
    z-index: 999;
}
.logo img {
    width: 100px;
    display: block;
}

/* HAMBURGER — hidden on desktop */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    z-index: 1100;
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}
.hamburger span {
    display: block;
    width: 25px;
    height: 2px;
    background: #0b4f9c;
    border-radius: 2px;
    transition: all 0.35s ease;
    transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* NAVBAR — desktop */
.navbar ul {
    display: flex;
    list-style: none;
    gap: 28px;
    margin: 0;
    padding: 0;
}
.navbar ul li a {
    text-decoration: none;
    color: #333;
    font-size: 14px;
    font-weight: 600;
    padding: 6px 2px;
    position: relative;
    letter-spacing: 0.3px;
    transition: color 0.3s;
}
.navbar ul li a::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 2px;
    background: #0b4f9c;
    border-radius: 2px;
    transition: width 0.3s;
}
.navbar ul li a:hover,
.navbar ul li a.active { color: #0b4f9c; }
.navbar ul li a:hover::after,
.navbar ul li a.active::after { width: 100%; }

/* CALL BUTTON */
.call-btn {
    background: #0b4f9c;
    color: #fff;
    padding: 9px 20px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 13px;
    border: 2px solid #0b4f9c;
    transition: 0.3s;
    cursor: pointer;
    white-space: nowrap;
}
.call-btn:hover { background: transparent; color: #0b4f9c; }

/* OVERLAY */
.nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 998;
}
.nav-overlay.active { display: block; }

/* ===================
   SLIDER
=================== */
.slider-section { width: 100%; margin-top: 0; }
.slider { position: relative; width: 100%; overflow: hidden; background: #f0f0f0; }
.slide { display: none; width: 100%; }
.slide.active { display: block; }
.slide img { width: 100%; height: auto; display: block; }

.arrow {
    position: absolute;
    top: 50%; transform: translateY(-50%);
    background: rgba(0,0,0,0.4);
    color: #fff; border: none;
    padding: 12px 16px; font-size: 22px;
    cursor: pointer; z-index: 10;
    border-radius: 4px; transition: background 0.3s;
}
.arrow:hover { background: rgba(0,0,0,0.7); }
.arrow-left  { left: 15px; }
.arrow-right { right: 15px; }

.dots {
    position: absolute; bottom: 12px;
    left: 50%; transform: translateX(-50%);
    display: flex; gap: 10px; z-index: 10;
}
.dot {
    width: 11px; height: 11px;
    background: rgba(255,255,255,0.55);
    border-radius: 50%; cursor: pointer; transition: background 0.3s;
}
.dot.active { background: #fff; }

/* ===================
   WELCOME
=================== */
.welcome-section {
    max-width: 1200px; margin: 0 auto;
    padding: 50px 60px; background: #fff;
}
.welcome-title {
    text-align: center; font-size: 26px;
    font-weight: 500; color: #222; margin-bottom: 28px;
}
.welcome-intro { font-size: 14.5px; color: #333; line-height: 1.85; }

/* ===================
   SHARED SECTION STYLES
=================== */
.section-tag {
    display: block; color: #0077cc;
    font-size: 15px; font-weight: 700;
    letter-spacing: 2px; text-transform: uppercase; margin-bottom: 10px;
}

/* ===================
   PRODUCT RANGE
=================== */
.product-range-section { max-width: 1200px; margin: 80px auto; padding: 0 20px; }
.product-range-heading { text-align: center; margin-bottom: 50px; }
.product-range-heading h2 { font-size: 38px; color: #003366; line-height: 1.3; }
.product-range-wrapper { display: flex; align-items: center; gap: 50px; }
.product-range-content { flex: 1; }
.product-range-content ul { list-style: none; padding: 0; margin-bottom: 25px; }
.product-range-content ul li { font-size: 18px; color: #333; margin-bottom: 15px; font-weight: 500; }
.product-range-content p { font-size: 17px; color: #555; line-height: 1.8; }
.product-range-image { flex: 0.8; text-align: center; }
.product-range-image img {
    width: 100%; max-width: 380px; border-radius: 15px;
    display: block; margin: auto;
    box-shadow: 0 10px 25px rgba(0,0,0,0.12); transition: transform 0.4s;
}
.product-range-image img:hover { transform: scale(1.05); }

/* ===================
   INNOVATION
=================== */
.innovation-section { max-width: 1200px; margin: 80px auto; padding: 0 20px; }
.innovation-heading { text-align: center; margin-bottom: 50px; }
.innovation-heading h2 { font-size: 38px; color: #003366; line-height: 1.3; }
.innovation-wrapper { display: flex; align-items: center; gap: 50px; }
.innovation-content { flex: 1; }
.innovation-content p { font-size: 17px; color: #555; line-height: 1.8; margin-bottom: 20px; }
.innovation-content ul { list-style: none; padding: 0; }
.innovation-content ul li { font-size: 18px; color: #333; margin-bottom: 15px; font-weight: 500; }
.innovation-image { flex: 0.8; text-align: center; }
.innovation-image img {
    width: 100%; max-width: 380px; border-radius: 15px;
    display: block; margin: auto;
    box-shadow: 0 10px 25px rgba(0,0,0,0.12); transition: transform 0.4s;
}
.innovation-image img:hover { transform: scale(1.05); }

/* ===================
   QUALITY
=================== */
.quality-section { max-width: 1200px; margin: 80px auto; padding: 0 20px; }
.quality-heading { text-align: center; margin-bottom: 50px; }
.quality-heading h2 { font-size: 38px; color: #003366; line-height: 1.3; }
.quality-wrapper { display: flex; align-items: center; gap: 50px; }
.quality-content { flex: 1; }
.quality-content p { font-size: 17px; color: #555; line-height: 1.8; margin-bottom: 25px; }
.quality-content ul { list-style: none; padding: 0; }
.quality-content ul li { font-size: 18px; color: #333; margin-bottom: 15px; font-weight: 500; }
.quality-image { flex: 0.8; text-align: center; }
.quality-image img {
    width: 100%; max-width: 380px; border-radius: 15px;
    display: block; margin: auto;
    box-shadow: 0 10px 25px rgba(0,0,0,0.12); transition: transform 0.4s;
}
.quality-image img:hover { transform: scale(1.05); }

/* ===================
   FOOTER
=================== */
.footer {
    background: #081420;
    position: relative;
    overflow: hidden;
}
.footer::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 4px;
    background: linear-gradient(90deg, #0b4f9c, #00b7ff);
}
.footer-container {
    max-width: 1200px;
    margin: auto;
    padding: 70px 30px;
    display: flex;
    justify-content: space-between;
    gap: 60px;
    flex-wrap: wrap;
}
.footer-box {
    flex: 1;
    min-width: 280px;
}
.footer-logo {
    width: 120px;
    margin-bottom: 20px;
    background: #fff;
    padding: 10px;
    border-radius: 10px;
}
.footer-about {
    color: #cfd8e3;
    line-height: 1.8;
    font-size: 15px;
}
.footer-box h3 {
    color: #fff;
    font-size: 24px;
    margin-bottom: 12px;
}
.footer-line {
    width: 50px;
    height: 3px;
    background: #00b7ff;
    margin-bottom: 25px;
}
.office-box {
    margin-bottom: 25px;
}
.office-box h4 {
    color: #00b7ff;
    margin-bottom: 8px;
    font-size: 17px;
}
.office-box p {
    color: #d7d7d7;
    line-height: 1.8;
    font-size: 15px;
}
.footer-links {
    list-style: none;
    padding: 0;
}
.footer-links li {
    margin-bottom: 14px;
}
.footer-links a {
    color: #d7d7d7;
    text-decoration: none;
    transition: .3s;
}
.footer-links a:hover {
    color: #00b7ff;
    padding-left: 6px;
}
.footer-contact {
    margin-top: 25px;
    border-top: 1px solid rgba(255,255,255,.1);
    padding-top: 20px;
}
.footer-contact p {
    color: #d7d7d7;
    margin-bottom: 12px;
}
.footer-contact i {
    color: #00b7ff;
    margin-right: 10px;
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.08);
    text-align: center;
    padding: 20px;
    color: #b5b5b5;
    font-size: 14px;
}
.scroll-top {
    position: absolute;
    right: 25px;
    bottom: 25px;
    width: 45px;
    height: 45px;
    background: #00b7ff;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    text-decoration: none;
    transition: .3s;
}
.scroll-top:hover {
    transform: translateY(-5px);
}
.footer-social {
    display: flex;
    gap: 12px;
    margin-top: 25px;
}
.footer-social a {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.1);
    color: #fff;
    text-decoration: none;
    transition: all .3s ease;
}
.footer-social a:hover {
    background: #00b7ff;
    color: #fff;
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0,183,255,.3);
}
.footer-social i {
    font-size: 16px;
}

/* =========================================
   RESPONSIVE — TABLET (max-width: 992px)
========================================= */
@media (max-width: 992px) {

    .top-header { padding: 8px 20px; }

    .main-header {
        padding: 10px 20px;
        position: relative;
    }

    .hamburger {
        display: flex !important;
    }

    .call-btn {
        display: none !important;
    }

    .navbar {
        position: fixed;
        top: 0;
        right: -300px;
        width: 270px;
        height: 100vh;
        background: #fff;
        z-index: 1000;
        padding-top: 75px;
        transition: right 0.35s ease;
        border-left: 3px solid #0b4f9c;
        box-shadow: -5px 0 25px rgba(0,0,0,0.15);
        overflow-y: auto;
    }

    .navbar.open {
        right: 0;
    }

    .navbar ul {
        flex-direction: column;
        gap: 0;
    }

    .navbar ul li a {
        display: block;
        padding: 16px 28px;
        font-size: 15px;
        border-bottom: 1px solid #eef2ff;
        color: #222;
    }

    .navbar ul li a:hover,
    .navbar ul li a.active {
        color: #0b4f9c;
        background: #eef2ff;
    }

    .navbar ul li a::after { display: none; }
}

/* =========================================
   RESPONSIVE — MOBILE (max-width: 768px)
========================================= */
@media (max-width: 768px) {

    .top-header {
        flex-direction: column;
        gap: 6px; padding: 8px 15px; text-align: center;
    }
    .top-email { font-size: 12px; justify-content: center; }

    .main-header { padding: 8px 15px; }

    .arrow { padding: 8px 11px; font-size: 16px; }
    .arrow-left  { left: 8px; }
    .arrow-right { right: 8px; }
    .dot { width: 9px; height: 9px; }

    .welcome-section { padding: 30px 20px; }
    .welcome-title { font-size: 21px; }
    .welcome-intro { font-size: 14px; }

    .product-range-wrapper,
    .innovation-wrapper,
    .quality-wrapper { flex-direction: column; gap: 30px; }

    .product-range-heading h2,
    .innovation-heading h2,
    .quality-heading h2 { font-size: 26px; }

    .product-range-content ul li,
    .innovation-content ul li,
    .quality-content ul li { font-size: 15px; }

    .product-range-content p,
    .innovation-content p,
    .quality-content p { font-size: 14px; }

    .product-range-image img,
    .innovation-image img,
    .quality-image img { max-width: 100%; }

    .footer-container {
        padding: 50px 20px;
        gap: 40px;
    }
    .footer-box { min-width: 100%; }
    .footer-box h3 { font-size: 22px; }
    .footer-bottom { font-size: 13px; padding: 15px; }
    .scroll-top { right: 15px; bottom: 70px; }
}

/* =========================================
   RESPONSIVE — SMALL MOBILE (max-width: 480px)
========================================= */
@media (max-width: 480px) {

    .logo img { width: 80px; }
    .welcome-title { font-size: 19px; }

    .product-range-heading h2,
    .innovation-heading h2,
    .quality-heading h2 { font-size: 22px; }

    .section-tag { font-size: 12px; letter-spacing: 1px; }

    .footer-box h3 { font-size: 20px; }
    .footer-box p { font-size: 14px; }
}