/* Shared navigation copied from the supplied reference. */
:root {
    --navy: #5C1A00;
    --royal: #B54A00;
    --border: rgba(181, 74, 0, 0.18);
    --shadow: rgba(92, 26, 0, 0.1);
}

.secondary-nav {
    position: fixed;
    top: 0;
    width: 100%;
    height: auto;
    z-index: 1001;
    padding: 0 5%;
    background: #6B2B10;
    border-bottom: 1px solid rgba(255, 230, 184, 0.24);
    box-shadow: 0 2px 16px rgba(92, 26, 0, 0.12);
    overflow: visible;
}

.secondary-nav-inner {
    max-width: 1400px;
    height: 44px;
    margin: 0 auto;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: nowrap;
}

.secondary-nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 30px;
    padding: 5.184px 12.96px;
    color: rgba(255, 248, 240, 0.92);
    text-decoration: none;
    font-size: 12.09px;
    font-weight: 700;
    letter-spacing: 0.7px;
    white-space: nowrap;
    border-radius: 4px;
    transition: background 0.2s ease, color 0.2s ease;
    flex-shrink: 0;
}

.secondary-nav-btn:hover,
.secondary-nav-btn.active {
    background: rgba(255, 255, 255, 0.16);
    color: #FFFFFF;
}

.secondary-about-dropdown {
    position: relative;
    flex: 0 0 auto;
}

.secondary-about-toggle {
    border: 0;
    background: transparent;
    font-family: inherit;
    cursor: pointer;
}

.secondary-about-toggle::after {
    content: '';
    width: 6px;
    height: 6px;
    margin-left: 7px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: translateY(-2px) rotate(45deg);
    transition: transform .2s ease;
}

.secondary-about-dropdown:hover .secondary-about-toggle::after,
.secondary-about-dropdown:focus-within .secondary-about-toggle::after,
.secondary-about-dropdown.is-open .secondary-about-toggle::after {
    transform: translateY(2px) rotate(225deg);
}

.secondary-about-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    z-index: 1100;
    min-width: 150px;
    margin: 0;
    padding: 7px;
    list-style: none;
    border: 1px solid rgba(181, 74, 0, .18);
    border-radius: 10px;
    background: rgba(255, 252, 247, .99);
    box-shadow: 0 14px 32px rgba(74, 26, 8, .2);
    opacity: 0;
    visibility: hidden;
    transform: translate(-50%, -7px);
    transition: opacity .18s ease, visibility .18s ease, transform .18s ease;
}

.secondary-about-dropdown:hover .secondary-about-menu,
.secondary-about-dropdown:focus-within .secondary-about-menu,
.secondary-about-dropdown.is-open .secondary-about-menu {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
}

.secondary-about-menu a {
    display: block;
    padding: 9px 12px;
    border-radius: 6px;
    color: #5C1A00;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .35px;
    text-decoration: none;
    white-space: nowrap;
}

.secondary-about-menu a:hover,
.secondary-about-menu a:focus-visible {
    color: #B54A00;
    background: rgba(212, 90, 0, .09);
    outline: none;
}

.nav {
    position: fixed;
    top: 44px;
    width: 100%;
    height: auto;
    z-index: 1000;
    padding: 0 5%;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border, rgba(181, 74, 0, 0.18));
    box-shadow: 0 2px 20px var(--shadow, rgba(92, 26, 0, 0.10));
}

.nav-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    gap: 1rem;
}

.nav-logo {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.9rem;
    text-decoration: none;
    line-height: 1;
}

.nav-logo-text {
    font-family: Optima, Candara, 'Gill Sans', 'Gill Sans MT', Trebuchet MS, sans-serif;
    font-size: 1.55rem;
    font-weight: 700;
    color: var(--navy);
    letter-spacing: 1.5px;
}

.nav-logo-img-wrap {
    background: linear-gradient(135deg, #8B3A0F, #C8701A);
    border-radius: 8px;
    padding: 4px 12px 4px 8px;
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
}

.nav-logo-img {
    height: 40px;
    width: auto;
    display: block;
    filter: brightness(0) invert(1);
}

.logo-accent { color: var(--royal); }

.nav-links {
    display: flex;
    gap: 1.15rem;
    list-style: none;
    align-items: center;
}

.nav-links a {
    color: #8B3A0F;
    text-decoration: none;
    font-size: 16.416px;
    letter-spacing: 1px;
    font-family: Optima, Candara, 'Gill Sans', 'Gill Sans MT', Trebuchet MS, sans-serif;
    font-weight: 700;
    transition: color 0.3s;
    position: relative;
    padding-bottom: 4px;
    white-space: nowrap;
    display: flex;
    align-items: center;
    height: 44px;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: #C8701A;
    transition: width 0.35s ease;
}

.nav-dropdown > .publications::before {
    content: '';
    order: 2;
    width: 7px;
    height: 7px;
    margin-left: 9px;
    border-right: 1.7px solid currentColor;
    border-bottom: 1.7px solid currentColor;
    transform: translateY(-2px) rotate(45deg);
    transition: transform .2s ease;
}

.nav-dropdown:hover > .publications::before,
.nav-dropdown:focus-within > .publications::before,
.nav-dropdown.is-open > .publications::before {
    transform: translateY(2px) rotate(225deg);
}

.nav-links a:hover,
.nav-links a.active { color: #C8701A; }

.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }
.nav-dropdown { position: relative; }

.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    left: auto;
    min-width: 210px;
    list-style: none;
    padding: 9.504px;
    border-radius: 8px;
    border: 1px solid var(--border, rgba(181, 74, 0, 0.18));
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 18px 36px rgba(92, 26, 0, 0.14);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu,
.nav-dropdown.is-open .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-dropdown-menu a {
    display: block;
    height: auto;
    padding: 10.368px 12.96px;
    border-radius: 8px;
    white-space: nowrap;
}

.nav-dropdown-menu a::after { display: none; }
.nav-dropdown-menu a:hover { background: rgba(212, 90, 0, 0.08); }

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    z-index: 1010;
}

.mobile-menu-btn span {
    display: block;
    width: 21px;
    height: 2px;
    background: var(--navy, #5C1A00);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.contact-page main,
.about-page main { padding-top: 124px; }

#vision,
#team,
#flowchart {
    scroll-margin-top: 124px;
}

@media (max-width: 768px) {
    .secondary-nav-inner { gap: 0.2rem; }
    .secondary-nav-btn { font-size: 12.09px; padding: 4.838px 9.504px; letter-spacing: 0.3px; }
    .sec-nav-omantri-full { display: none; }
    .sec-nav-omantri-short { display: inline; }
}

@media (min-width: 769px) {
    .sec-nav-omantri-full { display: inline; }
    .sec-nav-omantri-short { display: none; }
}

@media (max-width: 480px) {
    .secondary-nav-btn.sec-nav-hide-xs { display: none; }
    .secondary-nav-inner { justify-content: center; gap: 0; }
}

@media (max-width: 1024px) {
    .mobile-menu-btn { display: flex; }
    .mobile-menu-btn.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
    .mobile-menu-btn.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
    .mobile-menu-btn.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
    .nav-links {
        display: none;
        flex-direction: column;
        gap: 0;
        position: absolute;
        top: 80px;
        left: -5%;
        right: -5%;
        background: rgba(255, 255, 255, 0.99);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 2px solid var(--border, rgba(181, 74, 0, 0.18));
        box-shadow: 0 8px 32px var(--shadow, rgba(92, 26, 0, 0.10));
        max-height: calc(100vh - 124px);
        padding: 4px 0 8px;
        overflow-x: hidden;
        overflow-y: auto;
        overscroll-behavior: contain;
        touch-action: pan-y;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: thin;
        z-index: 999;
    }
    .nav-links.open { display: flex; }
    .nav-links li { width: 100%; }
    .nav-links a {
        display: block;
        padding: 10px 5%;
        font-size: 14px;
        border-bottom: 1px solid var(--border, rgba(181, 74, 0, 0.18));
        letter-spacing: 1.5px;
        height: auto;
    }
    .nav-links a::after { display: none; }
    .nav-dropdown-menu {
        display: none;
        position: static;
        min-width: 0;
        padding: 0;
        border: 0;
        border-radius: 0;
        box-shadow: none;
        background: transparent;
        opacity: 1;
        visibility: visible;
        transform: none;
    }
    .nav-dropdown.is-open > .nav-dropdown-menu { display: block; }
    .nav-dropdown-menu a {
        padding: 9px 8%;
        font-size: 13px;
        background: rgba(212, 90, 0, 0.04);
    }
    .nav-links li:last-child a { border-bottom: none; }
}