.top-bar,
.navbar {
    --header-surface: #ffffff;
    --header-text: #0d043a;
    --header-muted: #5b6b82;
    --header-accent: #d94f00;
}

/* =========================
   Top Announcement Bar
========================= */
.top-bar {
    padding: 8px 0;
    color: #e7f2ff;
    overflow: hidden;
    background: #000000;
    font-size: 0.9rem;
}

.announcement-nav-star { color:#a93600; font-size:1.2em; font-weight:800; line-height:0; }

.announcement-ticker {
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
    animation: announcement-ticker 8s ease-in-out infinite alternate;
}

@keyframes announcement-ticker {
    from { transform: translateX(0); }
    to { transform: translateX(24px); }
}

.top-bar a {
    color: #ffffff;
    text-decoration: none;
    transition: color 0.25s ease;
}

.top-bar a:hover,
.top-bar .highlight {
    color: #d94f00 !important;
}

.top-bar .highlight {
    font-weight: 600;
}

@media (prefers-reduced-motion: reduce) {
    .announcement-ticker { animation: none; }
}

/* =========================
   Main Header / Navbar
========================= */
.navbar {
    padding: 0.75rem 0;
    background: #c8c7c7ba;
    box-shadow: 0 8px 24px rgba(7, 22, 47, 0.08);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.navbar-brand {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 230px;
    height: 48px;
    padding: 4px 10px;
    background: var(--header-surface);
    border: 2px solid #a93600;
    border-radius: 14px;
    box-shadow: 0 6px 18px rgba(7, 22, 47, 0.12);
    font-weight: 700;
}

.navbar-brand img.navbar-logo {
    display: block;
    width: auto !important;
    height: auto !important;
    max-width: 170px !important;
    max-height: 40px !important;
    object-fit: contain;
    border-radius: 12px;
    background: var(--header-surface);
}

.navbar-brand.logo-comsar {
    width: auto;
    height: auto;
    padding: 0;
    background: transparent;
    border: 0;
    border-radius: 0;
    box-shadow: none;
}

.navbar-logo-scroll {
    display: none;
    align-items: center;
    justify-content: center;
}

.navbar-scroll-logo {
    display: block;
    width: auto !important;
    height: auto !important;
    max-width: 170px !important;
    max-height: 40px !important;
    object-fit: contain;
    border-radius: 12px;
    background: var(--header-surface);
}

.navbar-brand-text {
    display: none;
    margin-left: 0.75rem;
    color: var(--theme-primary, #041739);
    font-size: 0.5rem;
    font-weight: 600;
}

.navbar.scrolled .navbar-logo {
    display: none !important;
}

.navbar.scrolled .navbar-logo-scroll {
    display: inline-flex !important;
}

.navbar-venue-info {
    display: none;
    align-items: center;
    gap: 0.5rem;
    margin: 0 auto;
    color: #0d2b54;
    font-size: 0.9rem;
    font-weight: 500;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.navbar-venue-info.show {
    display: flex;
    opacity: 1;
}

.navbar-venue-info i {
    color: var(--header-accent);
}

.navbar .navbar-nav .nav-link {
    margin: 0 0.12rem;
    color: var(--header-text);
    font-weight: 500;
    font-size: 1rem;
    white-space: nowrap;
    transition: all 0.2s ease;
}

.navbar .navbar-nav .nav-link:hover {
    color: #d84315;
}

.navbar .navbar-nav .nav-link.active {
    color: #d84315;
    font-weight: 600;
}

.navbar .dropdown-item:hover {
    padding-left: 1.2rem;
    color: #ffffff;
    background: var(--header-accent);
}

.navbar-toggler,
.navbar-toggler.collapsed {
    border: 2px solid var(--header-accent) !important;
    border-radius: 6px;
}

.navbar-toggler:focus {
    box-shadow: none;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%2307162f' stroke-linecap='round' stroke-linejoin='round' stroke-width='2.5' d='M6 10h18M6 16h18M6 22h18'/%3e%3c/svg%3e");
}

.navbar-contact {
    display: flex;
    align-items: center;
}

/* Small gap between header right-side buttons */
.d-flex.align-items-center.ms-lg-4 {
    gap: 0.5rem;
}

.btn-contact {
    min-width: 220px;
    padding: 0.72rem 1rem;
    color: #00ff40;
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid var(--header-accent);
    border-radius: 999px;
    font-weight: 600;
    transition: all 0.25s ease;
}

.btn-contact i {
    color: #00ff00;
    font-size: 1.05rem;
}

.btn-contact .contact-label {
    text-align: left;
    line-height: 1.1;
}

.btn-contact small {
    display: block;
    color: #011785;
    font-size: 0.78rem;
}

.btn-contact:hover {
    color: #ffffff;
    background: #153da2;
    border-color: var(--header-accent);
    transform: translateY(-1px);
}

.btn-registration {
    padding: 0.48rem 0.9rem;
    white-space: nowrap;
    color: var(--header-surface);
    background: #d84315;
    border-radius: 0.5rem;
    box-shadow: 0 8px 20px rgba(216, 67, 21, 0.28);
    font-weight: 700;
    font-size: 0.95rem;
    transition: all 0.2s ease-in-out;
}

.btn-registration_s{
    display:inline-flex;
    align-items:center;
    justify-content:center;

    padding: 8px 16px;
    white-space: nowrap;
    border:2px solid #d84315;
    border-radius:12px;

    background:#0f1d62ab;
    color:#ffffff;

    font-size: 0.95rem;
    font-weight:700;
    text-decoration:none;

    transition:all .3s ease;
}

.btn-registration_s:hover{
    background:#ffffff;
    color:#d84315;
    border-color:#d84315;

    transform:translateY(-2px);
    box-shadow:0 8px 20px rgba(216,67,21,0.25);
}

.btn-registration:active{
    transform:translateY(0);
}
.btn-registration:hover {
    color: var(--header-surface);
    background: #b33410;
    text-decoration: none;
    transform: translateY(-2px);
}

/* Keep the expanded navigation within the viewport in Chrome and at scaled desktop widths. */
@media (min-width: 992px) and (max-width: 1400px) {
    .navbar { padding: .55rem 0; }
    .navbar .container-fluid { gap: .35rem; }
    .navbar-brand { width: 205px; height: 44px; }
    .navbar-brand img.navbar-logo { max-width: 185px; }
    .navbar .navbar-nav .nav-link { margin: 0 .06rem; padding: .45rem .28rem; font-size: .92rem; }
    .nav-actions { margin-left: .35rem !important; gap: .35rem !important; }
    .btn-registration { padding: .45rem .7rem; font-size: .86rem; }
    .btn-registration_s { padding: .45rem .9rem; font-size: .86rem; }
}

.contact-nav-item {
    display: block;
}

@media (max-width: 991.98px) {
    .navbar.nav-hidden {
        transform: translateY(-110%);
    }

    .navbar .container-fluid { padding-right: .9rem; padding-left: .9rem; }

    .navbar-brand {
        width: 160px;
        padding: 5px 8px;
    }

    .navbar-collapse {
        max-height: calc(100vh - 76px);
        margin-top: .65rem;
        padding: .5rem .75rem .75rem;
        overflow-y: auto;
        background: #ffffff;
        border: 1px solid rgba(169, 54, 0, .22);
        border-radius: 12px;
        box-shadow: 0 12px 28px rgba(7, 22, 47, .14);
    }

    .navbar-nav { padding-top: 0; }

    .navbar .navbar-nav .nav-link {
        margin: 0;
        padding: .65rem .35rem;
        border-bottom: 1px solid rgba(13, 4, 58, .09);
    }

    .navbar .dropdown-menu {
        position: static;
        width: 100%;
        margin: .2rem 0 .45rem;
        padding: .25rem 0;
        background: #f4f7fc;
        border: 1px solid rgba(13, 4, 58, .1);
        border-radius: 8px;
        box-shadow: none;
    }

    .navbar .dropdown-item { padding: .55rem .85rem; }

    .nav-actions {
        flex-direction: column;
        align-items: stretch !important;
        gap: .55rem;
        margin-top: .75rem !important;
        padding-top: .75rem;
        border-top: 1px solid rgba(13, 4, 58, .09);
    }

    .nav-actions .btn-registration,
    .nav-actions .btn-registration_s {
        width: 100%;
        margin-right: 0 !important;
        text-align: center;
    }

    .contact-nav-item {
        display: block;
    }

    .btn-contact {
        width: 100%;
        min-width: auto;
        justify-content: center;
    }

    .btn-contact .contact-label {
        text-align: center;
    }

    .btn-contact small {
        display: none;
    }
}

@media (max-width: 767.98px) {
    .top-bar {
        padding: 10px 0;
        font-size: 0.78rem;
        text-align: center;
    }

    .top-bar .text-end {
        margin-top: 0.35rem;
        text-align: center;
    }

    .navbar {
        padding: 0.6rem 0;
    }

    .navbar-brand {
        width: 140px;
        height: 42px;
    }

    .navbar-brand img.navbar-logo,
    .navbar-scroll-logo {
        max-width: 120px !important;
        max-height: 32px !important;
    }

    .navbar-toggler {
        padding: 0.35rem 0.5rem;
    }

    .navbar-collapse { margin-top: .5rem; }
}

@media (max-width: 420px) {
    .navbar .container-fluid { padding-right: .7rem; padding-left: .7rem; }

    .navbar-brand {
        width: 130px;
        height: 40px;
    }

    .navbar-brand img.navbar-logo,
    .navbar-scroll-logo { max-width: 112px !important; }

    .navbar-toggler { padding: .3rem .45rem; }
}