:root {
    --primary-color: #0a2342;
    --primary-dark: #06182f;
    --secondary-color: #F97316;
    --secondary-dark: #C2410C;
    --white-color: #ffffff;
    --text-color: #263238;
    --light-bg: #f4f7fa;
    --border-color: #e5ebf1;
    --header-height: 82px;
    --transition: all 0.3s ease;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.97);
    border-bottom: 1px solid rgba(10, 35, 66, 0.08);
    box-shadow: 0 3px 18px rgba(8, 25, 48, 0.07);
    transition: var(--transition);
}

.site-header.header-scrolled {
    height: 72px;
    box-shadow: 0 8px 25px rgba(8, 25, 48, 0.12);
}

.header-container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
}

.brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--primary-color);
    flex-shrink: 0;
}

.logo-mark {
    width: 55px;
    height: 55px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 3px;
    /* padding: 6px; */
    border-radius: 4px;
    /* background: var(--primary-color); */
}

.logo-mark span {
    display: block;
    width: 5px;
    background: var(--secondary-color);
    border-radius: 2px 2px 0 0;
}

.logo-mark span:nth-child(1) {
    height: 12px;
}

.logo-mark span:nth-child(2) {
    height: 20px;
}

.logo-mark span:nth-child(3) {
    height: 27px;
}

.logo-content {
    display: flex;
    flex-direction: column;
    line-height: 1;
    letter-spacing: 0.8px;
}

.logo-content strong {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary-color);
}

.logo-content span {
    /* margin-top: 3px;
    font-size: 10px;
    font-weight: 800; */
    color: var(--secondary-color);
    /* letter-spacing: 2.2px; */
}

.main-navigation {
    display: flex;
    align-items: center;
    gap: 28px;
    margin-left: auto;
}

.nav-link {
    position: relative;
    padding: 10px 0;
    color: var(--text-color);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
}

.nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 2px;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Services Dropdown */

.nav-dropdown {
    position: relative;
}

.nav-dropdown > .nav-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.dropdown-arrow {
    font-size: 11px;
    transition: transform 0.3s ease;
}

.nav-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    min-width: 620px;
    padding: 28px 30px;
    background: var(--white-color);
    border-top: 3px solid var(--secondary-color);
    border-radius: 0 0 6px 6px;
    box-shadow: 0 18px 40px rgba(8, 25, 48, 0.15);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease;
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    /* transform: translateX(-50%) translateY(0); */
}

.dropdown-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.dropdown-column {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.dropdown-heading {
    display: block;
    margin-bottom: 12px;
    padding-bottom: 8px;
    color: var(--primary-color);
    border-bottom: 2px solid var(--secondary-color);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.dropdown-column a {
    display: block;
    padding: 7px 0;
    color: var(--text-color);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.dropdown-column a:hover {
    color: var(--secondary-color);
    padding-left: 6px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.header-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 43px;
    padding: 0 19px;
    color: var(--white-color);
    background: var(--secondary-color);
    border-radius: 3px;
    text-decoration: none;
    font-size: 13px;
    font-weight: 700;
    transition: var(--transition);
}

.header-cta:hover {
    background: var(--secondary-dark);
    color: var(--white-color);
    transform: translateY(-2px);
}

.mobile-menu-button {
    display: none;
    width: 42px;
    height: 42px;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--white-color);
    cursor: pointer;
}

.mobile-menu-button span {
    display: block;
    width: 100%;
    height: 2px;
    margin: 5px 0;
    background: var(--primary-color);
    transition: var(--transition);
}

@media (max-width: 991px) {
    .main-navigation {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        max-height: 0;
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        overflow: hidden;
        padding: 0 5%;
        background: var(--white-color);
        border-top: 1px solid var(--border-color);
        box-shadow: 0 15px 22px rgba(8, 25, 48, 0.1);
        transition: max-height 0.35s ease, padding 0.35s ease;
    }

    .main-navigation.menu-open {
        max-height: 700px;
        padding: 12px 5% 20px;
    }

    .nav-link {
        width: 100%;
        padding: 14px 0;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-link::after {
        display: none;
    }

    .header-cta {
        display: none;
    }

    .mobile-menu-button {
        display: block;
    }

    .mobile-menu-button.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .mobile-menu-button.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-button.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    /* Mobile dropdown */
    .dropdown-menu {
        position: static;
        min-width: auto;
        padding: 0;
        margin-top: 10px;
        background: var(--light-bg);
        border: none;
        border-radius: 0;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        transform: none;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease;
    }

    .nav-dropdown.open .dropdown-menu {
        max-height: 500px;
    }

    .dropdown-grid {
        /* grid-template-columns: 1fr; */
        grid-template-columns: repeat(2, 1fr);
        gap: 0;
        padding: 0;
    }

    .dropdown-column {
        gap: 0;
        padding: 12px 0;
        border-bottom: 1px solid var(--border-color);
    }

    .dropdown-column:last-child {
        border-bottom: none;
    }

    .dropdown-heading {
        margin-bottom: 10px;
        padding-bottom: 6px;
        font-size: 11px;
    }

    .dropdown-column a {
        padding: 6px 16px;
    }

    .nav-dropdown > .nav-link {
        display: flex;
    }

    .dropdown-arrow {
        font-size: 10px;
        margin-left: auto;
        transition: transform 0.3s ease;
    }

    .nav-dropdown.open .dropdown-arrow {
        transform: rotate(180deg);
    }
}

@media (max-width: 575px) {
    :root {
        --header-height: 72px;
    }

    .logo-mark {
        width: 34px;
        height: 34px;
    }

    .logo-content strong {
        font-size: 21px;
    }

    .logo-content span {
        /* font-size: 8px; */
        letter-spacing: 1.8px;
    }
}

.brochure-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 10px 16px; 
  background: linear-gradient(135deg, #FF8C00, #FF4500);
  color: #FFFFFF;
  border-radius: 10px;
  text-decoration: none;
  font-family: Arial, sans-serif;
  font-size: 16px;
  font-weight: 600;
   box-shadow: 0 5px 18px rgba(255, 102, 0, 0.30);
  transition: all .3s ease;
}

.brochure-button:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 28px rgba(255, 102, 0, 0.45);
  background: linear-gradient(135deg, #FF7000, #E63900);
}

.brochure-button:active {
  transform: scale(.96);
}

.brochure-icon {
  display: flex;
  transition: transform .3s ease;
}

.download-icon {
  display: flex;
  animation: downloadBounce 1.2s infinite;
}

.brochure-button:hover .brochure-icon {
  transform: rotate(-8deg) scale(1.1);
}

@keyframes downloadBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(4px); }
}

@media (prefers-reduced-motion: reduce) {
  .download-icon { animation: none; }
  .brochure-button { transition: none; }
}