/* oceandatum.ai — shared navbar styles
   The ONLY place navbar styling and the hamburger breakpoint live.
   Pages keep their own nav HTML (links + path prefixes) but must not restyle
   .navbar / .navbar-* / .hamburger-button / .mobile-menu* themselves.
   (body.light-mode overrides and @media print rules stay on the pages that use them.)

   Looks, matching what the site already had:
     <nav class="navbar">              compact — project & tool pages (default)
     <nav class="navbar navbar-pill">  pill buttons + "OceanDatum" brand — Tampa cement reports, login, Role Brief
     <nav class="navbar navbar-main">  larger buttons — home, CV, blog
     + navbar-hub   plain social icons, darker menu — projects hub, coal map, hold cleaning
     + navbar-top   z-index 1100, above the page's own fixed panels — grain guide

   Breakpoints (edit here only):
     <= 640px  phones: hamburger + drop-down menu
     <= 768px  tablets: full bar, tighter padding
   Wider than 640px, od-navbar.js checks whether the bar fits on one row.
   If it does not, it first hides the social icons (html.od-nav-no-social),
   then falls back to the hamburger (html.od-nav-collapsed). The classes go on
   <html> because a few pages keep #mobileMenu outside the <nav>. */

/* ── Compact (default) ─────────────────────────────────── */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(255,255,255,0.12);
    padding: 0.8rem 2rem;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: 'Space Grotesk', sans-serif;
}

.navbar-brand {
    font-size: 0.85rem;
    font-weight: 300;
    font-style: italic;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
}
.navbar-brand a {
    color: rgba(255,255,255,0.9);
    font-weight: 600;
    font-style: normal;
    text-decoration: none;
    transition: color 0.3s;
}
.navbar-brand a:hover { color: #64ffb4; }

.navbar-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.navbar-link {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.75);
    text-decoration: none;
    padding: 0.35rem 0.75rem;
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 6px;
    transition: all 0.3s;
    white-space: nowrap;
}
.navbar-link:hover {
    color: #64ffb4;
    border-color: rgba(100,255,180,0.4);
    background: rgba(100,255,180,0.05);
}

.navbar .social-icons {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}
.navbar .social-icon {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50%;
    transition: all 0.3s;
}
.navbar .social-icon:hover {
    color: #64ffb4;
    border-color: rgba(100,255,180,0.4);
}

.hamburger-button {
    display: none;
    background: none;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 6px;
    color: rgba(255,255,255,0.8);
    cursor: pointer;
    font-size: 1.1rem;
    line-height: 1;
    transition: all 0.3s;
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}
.hamburger-button:hover {
    border-color: #64ffb4;
    color: #64ffb4;
    background: rgba(100,255,180,0.05);
}

.mobile-menu {
    display: none;
    max-height: 0;
    overflow: hidden;
    background: rgba(5,15,25,0.98);
    border-top: 1px solid rgba(100,255,180,0.3);
    border-bottom: 1px solid rgba(100,255,180,0.3);
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    z-index: 999;
}
.mobile-menu-section { padding: 10px 0; }
.mobile-menu-item a {
    display: block;
    padding: 15px 20px;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    font-size: 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    transition: all 0.2s;
}
.mobile-menu-item a:hover {
    background: rgba(100,255,180,0.1);
    color: #64ffb4;
    padding-left: 30px;
}
.mobile-menu-social {
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 20px;
    border-top: 1px solid rgba(255,255,255,0.2);
}

/* ── Pill ─────────────────────────────────────────────── */
.navbar-pill {
    background: rgba(10,10,10,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom-color: rgba(255,255,255,0.1);
}
.navbar-pill .navbar-brand {
    font-family: 'Space Grotesk', -apple-system, sans-serif;
    letter-spacing: 0.5px;
}
.navbar-pill .navbar-right { gap: 1rem; flex-wrap: nowrap; }
.navbar-pill .navbar-link {
    font-family: 'Space Grotesk', -apple-system, sans-serif;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.7);
    padding: 6px 14px;
    border-radius: 20px;
    transition: all 0.3s ease;
}
.navbar-pill .navbar-link:hover {
    color: #fff;
    border-color: rgba(255,255,255,0.4);
    background: rgba(255,255,255,0.05);
}
.navbar-pill .social-icons { gap: 12px; margin-right: 8px; }
.navbar-pill .social-icon {
    display: inline-flex;
    width: auto;
    height: auto;
    border: 0;
    border-radius: 0;
    font-size: inherit;
    color: rgba(255,255,255,0.5);
    transition: color 0.3s;
}
.navbar-pill .hamburger-button {
    background: transparent;
    font-size: 1.4rem;
    line-height: normal;
    border-radius: 8px;
}
.navbar-pill .mobile-menu {
    background: rgba(10,10,10,0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: max-height 0.3s ease;
}
.navbar-pill .mobile-menu-item a {
    border-bottom-color: rgba(255,255,255,0.05);
    transition: all 0.3s;
}
.navbar-pill .mobile-menu-item a:hover { padding-left: 20px; }
.navbar-pill .mobile-menu-social {
    justify-content: flex-start;
    gap: 16px;
    padding: 16px 24px;
    border-top-color: rgba(255,255,255,0.1);
}

/* ── Main ─────────────────────────────────────────────── */
.navbar-main {
    background: rgba(0,0,0,0.4);
    border-bottom-color: rgba(255,255,255,0.15);
}
.navbar-main .navbar-brand { letter-spacing: 0.03em; }
.navbar-main .navbar-brand a { transition: all 0.3s ease; }
.navbar-main .navbar-right { gap: 1rem; flex-wrap: nowrap; }
.navbar-main .social-icons { gap: 0.8rem; }
.navbar-main .social-icon {
    display: inline;
    width: auto;
    height: auto;
    border: 0;
    border-radius: 0;
    font-size: 1.2rem;
    color: rgba(255,255,255,0.7);
    transition: all 0.3s ease;
}
.navbar-main .navbar-link {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.8);
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-color: rgba(255,255,255,0.2);
    white-space: normal;
}
.navbar-main .hamburger-button {
    color: white;
    font-size: 1.5rem;
    line-height: normal;
    transition: all 0.3s ease;
}
.navbar-main .mobile-menu {
    background: rgba(0,0,0,0.98);
    z-index: 1000;
    transition: max-height 0.3s ease;
}
.navbar-main .mobile-menu-item a {
    color: rgba(255,255,255,0.9);
    border-bottom-color: rgba(255,255,255,0.1);
    transition: all 0.3s ease;
}

/* ── Hub: plain social icons, darker menu (projects hub, coal map, hold cleaning) ── */
.navbar-hub .social-icons { gap: 0.5rem; }
.navbar-hub .social-icon {
    display: inline;
    width: auto;
    height: auto;
    border: 0;
    border-radius: 0;
    font-size: inherit;
    color: rgba(255,255,255,0.5);
    transition: color 0.2s;
}
.navbar-hub:not(.navbar-main) .navbar-link {
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    border-radius: 5px;
    transition: all 0.2s;
}
.navbar-hub .hamburger-button {
    color: rgba(255,255,255,0.7);
    font-size: 1.2rem;
    line-height: normal;
    transition: all 0.2s;
}
.navbar-hub .hamburger-button:hover { background: none; }
.navbar-hub ~ .mobile-menu,
.navbar-hub .mobile-menu {
    background: rgba(10,10,10,0.97);
    backdrop-filter: blur(20px);
    transition: max-height 0.3s ease;
}
.navbar-hub ~ .mobile-menu .mobile-menu-item a,
.navbar-hub .mobile-menu-item a {
    color: rgba(255,255,255,0.85);
    border-bottom-color: rgba(255,255,255,0.07);
}
.navbar-hub ~ .mobile-menu .mobile-menu-item a:hover,
.navbar-hub .mobile-menu-item a:hover {
    background: rgba(100,255,180,0.08);
    padding-left: 28px;
}
.navbar-hub ~ .mobile-menu .mobile-menu-social,
.navbar-hub .mobile-menu-social {
    gap: 1.2rem;
    padding: 1rem;
    border-top-color: rgba(255,255,255,0.08);
}

/* ── Top: navbar layered above a page's own fixed panels (grain guide sidebar) ── */
.navbar-top { z-index: 1100; }
.navbar-top .mobile-menu { z-index: 1099; }

/* ── Tablets: full bar, tighter padding ───────────────── */
@media (max-width: 768px) {
    .navbar { padding: 0.6rem 1rem; }
}

/* ── Narrow bar that doesn't fit: drop social icons first (set by od-navbar.js) ── */
.od-nav-no-social .navbar-right .social-icons { display: none; }

/* ── Phones: hamburger + drop-down menu ───────────────── */
@media (max-width: 640px) {
    .hamburger-button { display: block; }
    .navbar-right .social-icons,
    .navbar-right .navbar-link { display: none; }
    .navbar-right { display: flex; gap: 0.5rem; }
    .mobile-menu.active { display: block; max-height: 500px; }
}

/* Same as phones, for a wider window where the bar still doesn't fit (set by od-navbar.js) */
.od-nav-collapsed .hamburger-button { display: block; }
.od-nav-collapsed .navbar-right .social-icons,
.od-nav-collapsed .navbar-right .navbar-link { display: none; }
.od-nav-collapsed .navbar-right { display: flex; gap: 0.5rem; }
.od-nav-collapsed .mobile-menu.active { display: block; max-height: 500px; }