/* ==========================================================================
   TRISDHA — HEADER STYLES
   ========================================================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid transparent;
    transition: box-shadow var(--transition-base), border-color var(--transition-base), padding var(--transition-base);
    padding: 18px 0;
}

.site-header.is-scrolled {
    box-shadow: 0 6px 24px rgba(14, 39, 72, 0.08);
    border-bottom-color: var(--trisdha-border);
    padding: 12px 0;
}

.site-header .navbar {
    padding: 0;
}

.site-header .navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0;
}

.site-header .navbar-brand img {
    height: 46px;
    width: auto;
    transition: height var(--transition-base);
}

.site-header.is-scrolled .navbar-brand img {
    height: 40px;
}

.site-header .brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.site-header .brand-text .brand-name {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--trisdha-navy);
    letter-spacing: 0.02em;
}

.site-header .brand-text .brand-tag {
    font-size: 10px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--trisdha-grey);
}

.site-header .navbar-nav {
    align-items: center;
    gap: 4px;
}

.site-header .nav-link {
    font-family: var(--font-body);
    font-size: 14.5px;
    font-weight: 500;
    color: var(--trisdha-charcoal);
    padding: 10px 18px !important;
    position: relative;
}

.site-header .nav-link::after {
    content: "";
    position: absolute;
    left: 18px;
    right: 18px;
    bottom: 6px;
    height: 2px;
    background: var(--trisdha-red);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.site-header .nav-link:hover,
.site-header .nav-link.active {
    color: var(--trisdha-navy);
}

.site-header .nav-link:hover::after,
.site-header .nav-link.active::after {
    transform: scaleX(1);
}

.site-header .nav-cta {
    margin-left: 14px;
}

.site-header .nav-cta .btn-trisdha-primary {
    padding: 11px 24px;
    font-size: 13px;
}

.site-header .navbar-toggler {
    border: none;
    padding: 4px;
    box-shadow: none !important;
}

.site-header .navbar-toggler-icon {
    background-image: none;
    position: relative;
    width: 24px;
    height: 18px;
    display: inline-block;
}

.site-header .navbar-toggler-icon span,
.site-header .navbar-toggler-icon span::before,
.site-header .navbar-toggler-icon span::after {
    content: "";
    position: absolute;
    left: 0;
    width: 24px;
    height: 2px;
    background-color: var(--trisdha-navy);
    transition: all var(--transition-base);
}

.site-header .navbar-toggler-icon span {
    top: 8px;
}

.site-header .navbar-toggler-icon span::before {
    top: -8px;
}

.site-header .navbar-toggler-icon span::after {
    top: 8px;
}

@media (max-width: 991.98px) {
    .site-header .navbar-collapse {
        background: var(--trisdha-white);
        margin-top: 18px;
        padding: 20px 4px;
        border-top: 1px solid var(--trisdha-border);
    }

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

    .site-header .nav-cta {
        margin-left: 0;
        margin-top: 10px;
    }

    .site-header .nav-cta .btn-trisdha-primary {
        width: 100%;
        justify-content: center;
    }
}