/* ===========================================
   SCIENS HEADER — Underline Nav
   Clean, editorial navigation with full-width
   sub-navigation bar on hover.
   =========================================== */

:root {
    --sciens-header-bg: #ffffff;
    --sciens-header-text: #1A1A1A;
    --sciens-header-text-muted: #6B6B6B;
    --sciens-header-accent: #E8874A;
    --sciens-header-accent-blue: #457FF9;
    --sciens-header-border: #E5E5E5;
    --sciens-header-border-light: #F0F0F0;
    --sciens-font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --sciens-header-height: 72px;
}

.sciens-site-header,
.sciens-site-header * {
    box-sizing: border-box;
}

.sciens-site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1000;
    background: var(--sciens-header-bg);
    border-bottom: 1px solid var(--sciens-header-border);
    font-family: var(--sciens-font-main);
}

.sciens-header-container {
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 4%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--sciens-header-height);
}

@media (min-width: 1800px) {
    .sciens-header-container {
        padding: 0 60px;
    }
}

/* ─── Logo ─── */
.sciens-logo {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    flex-shrink: 0;
    height: 100%;
}

.sciens-logo img {
    height: auto;
    max-height: 80px;
    width: auto;
    max-width: 192px;
    display: block;
}

.sciens-logo-text {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--sciens-header-text);
    letter-spacing: -0.02em;
}

/* ─── Navigation ─── */
.sciens-nav {
    display: flex;
    align-items: center;
    height: 100%;
}

.sciens-nav-list {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    height: 100%;
}

.sciens-nav-list > li {
    position: relative;
    display: flex;
    align-items: center;
    height: 100%;
    margin: 0;
    padding: 0;
    list-style: none;
}

.sciens-nav-list > li > a {
    display: flex;
    align-items: center;
    height: 100%;
    padding: 0 14px;
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.005em;
    color: var(--sciens-header-text-muted);
    text-decoration: none;
    position: relative;
    transition: color 0.2s ease;
    margin: 0;
    line-height: 1;
}

.sciens-nav-list > li > a:hover {
    color: var(--sciens-header-text);
}

/* Current page — top level */
.sciens-nav-list > li.current-menu-item > a,
.sciens-nav-list > li.current-menu-ancestor > a {
    color: var(--sciens-header-text);
}

/* Underline indicator */
.sciens-nav-list > li > a::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 14px;
    right: 14px;
    height: 2px;
    background: var(--sciens-header-accent);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.sciens-nav-list > li > a:hover::after,
.sciens-nav-list > li.current-menu-item > a::after,
.sciens-nav-list > li.current-menu-ancestor > a::after {
    transform: scaleX(1);
}

/* ─── Investor Portal Button ─── */
.sciens-investor-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-left: 1.2rem;
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--sciens-header-accent);
    background: transparent;
    border: 1.5px solid var(--sciens-header-accent);
    border-radius: 5px;
    text-decoration: none;
    transition: all 0.2s ease;
    white-space: nowrap;
    flex-shrink: 0;
}

.sciens-investor-btn:hover {
    background: var(--sciens-header-accent);
    color: #fff;
}

.sciens-investor-btn svg {
    width: 13px;
    height: 13px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
}

/* ─── Mobile Toggle ─── */
.sciens-mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.sciens-mobile-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--sciens-header-text);
    margin: 2px 0;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.sciens-mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(3.5px, 3.5px);
}

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

.sciens-mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(3.5px, -3.5px);
}

/* ─── Mobile ─── */
@media (max-width: 1000px) {
    :root {
        --sciens-header-height: 64px;
    }

    .sciens-mobile-toggle {
        display: flex;
    }

    .sciens-nav {
        position: fixed;
        top: var(--sciens-header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--sciens-header-bg);
        padding: 1.2rem;
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transform: translateY(-8px);
        transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
        overflow-y: auto;
        height: auto;
    }

    .sciens-nav.active {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: translateY(0);
    }

    .sciens-nav-list {
        flex-direction: column;
        align-items: stretch;
        height: auto;
    }

    .sciens-nav-list > li {
        position: relative;
        height: auto;
        display: block;
    }

    .sciens-nav-list > li > a {
        padding: 0.8rem;
        height: auto;
        display: block;
        font-size: 0.9rem;
    }

    /* Hide underline on mobile */
    .sciens-nav-list > li > a::after {
        display: none;
    }

    .sciens-investor-btn {
        margin: 1.2rem 0 0 0;
        justify-content: center;
        padding: 0.7rem 1.2rem;
        font-size: 0.8rem;
    }
}

/* Spacer for fixed header */
.sciens-header-spacer {
    height: var(--sciens-header-height);
}

/* Hide theme's default header */
#section-header,
.section-header,
#masthead.site-header,
.site-header:not(.sciens-site-header),
#masthead,
.header-main,
.main-header,
#site-header,
.theme-header,
#header:not(.sciens-site-header),
.header:not(.sciens-site-header),
body > header:not(.sciens-site-header) {
    display: none !important;
}