/* ============================================================
   GeoTrack — Navbar (Premium v3)
   ============================================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--navbar-height);
    display: flex;
    align-items: center;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    transition: background 0.4s var(--ease-out), border-color 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out), backdrop-filter 0.4s;
    border-bottom: 1px solid transparent;
}

/* Scrolled: glass morphism */
.navbar.is-scrolled {
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom-color: rgba(11,44,92,0.06);
    box-shadow: 0 1px 0 rgba(11,44,92,0.04), 0 4px 24px rgba(11,44,92,0.04);
}

/* When on home page — subtle glass even before scroll for readability */
[data-page="home"] .navbar:not(.is-scrolled) {
    background: rgba(10, 20, 40, 0.2);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
[data-page="home"] .navbar:not(.is-scrolled) .navbar__link { color: rgba(255,255,255,0.85); }
[data-page="home"] .navbar:not(.is-scrolled) .navbar__link:hover { color: #fff; background: rgba(255,255,255,0.1); }
[data-page="home"] .navbar:not(.is-scrolled) .navbar__link.is-active { color: #fff; }
[data-page="home"] .navbar:not(.is-scrolled) .navbar__link.is-active::after { background: #4ade80; }
[data-page="home"] .navbar:not(.is-scrolled) .navbar__logo-img { filter: brightness(0) invert(1); }
[data-page="home"] .navbar:not(.is-scrolled) .navbar__logo-text { color: #fff; }
[data-page="home"] .navbar:not(.is-scrolled) .navbar__logo-text span { color: #4ade80; }
[data-page="home"] .navbar:not(.is-scrolled) .navbar__hamburger { border-color: rgba(255,255,255,0.25); }
[data-page="home"] .navbar:not(.is-scrolled) .navbar__hamburger-bar { background: rgba(255,255,255,0.85); }
[data-page="home"] .navbar:not(.is-scrolled) .navbar__cta {
    background: #16a34a;
    border-color: #16a34a;
    color: #fff;
    box-shadow: 0 2px 12px rgba(22,163,74,0.35);
}

.navbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: var(--content-max);
    margin: 0 auto;
    padding: 0 24px;
}
@media (min-width: 768px)  { .navbar__inner { padding: 0 40px; } }
@media (min-width: 1280px) { .navbar__inner { padding: 0 56px; } }

/* ── Logo ───────────────────────────────────────────────────── */
.navbar__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
}

.navbar__logo-img {
    height: 64px;
    width: auto;
    display: block;
    transition: transform 0.3s var(--ease-spring);
}
.navbar__logo:hover .navbar__logo-img { transform: scale(1.03); }

.navbar__logo-fallback { display: flex; align-items: center; gap: 10px; }

.navbar__logo-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient-brand);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 10px rgba(11,44,92,0.3);
    transition: transform 0.3s var(--ease-spring), box-shadow 0.3s;
}
.navbar__logo:hover .navbar__logo-icon {
    transform: scale(1.05) rotate(-3deg);
    box-shadow: 0 4px 16px rgba(11,44,92,0.4);
}
.navbar__logo-icon svg { width: 18px; height: 18px; color: #fff; }

.navbar__logo-text {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    transition: color 0.3s;
}
.navbar__logo-text span { color: var(--accent-secondary); }

/* ── Nav Links ──────────────────────────────────────────────── */
.navbar__nav {
    display: none;
    align-items: center;
    gap: 2px;
}
@media (min-width: 1024px) { .navbar__nav { display: flex; } }

.navbar__link {
    padding: 7px 16px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.9375rem;
    color: var(--text-muted);
    transition: color 0.2s, background 0.2s;
    text-decoration: none;
    position: relative;
    letter-spacing: -0.01em;
}
.navbar__link:hover { color: var(--text-primary); background: var(--bg-secondary); }
.navbar__link.is-active { color: var(--text-primary); font-weight: 600; }
.navbar__link.is-active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 2.5px;
    background: var(--accent);
    border-radius: 2px;
}

/* ── Actions ────────────────────────────────────────────────── */
.navbar__actions {
    display: none;
    align-items: center;
    gap: 8px;
}
@media (min-width: 1024px) { .navbar__actions { display: flex; } }

.navbar__cta {
    padding: 9px 22px;
    background: var(--accent);
    color: #fff;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: var(--radius-md);
    transition: all 0.25s var(--ease-out);
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(11,44,92,0.25);
    letter-spacing: -0.01em;
}
.navbar__cta:hover {
    background: var(--accent-hover);
    box-shadow: 0 4px 18px rgba(11,44,92,0.35);
    transform: translateY(-1px);
}

/* ── Hamburger ──────────────────────────────────────────────── */
.navbar__hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 9px;
    border-radius: var(--radius-sm);
    background: transparent;
    cursor: pointer;
    border: 1px solid var(--border-medium);
    transition: background 0.2s, border-color 0.2s;
}
@media (min-width: 1024px) { .navbar__hamburger { display: none; } }

.navbar__hamburger:hover { background: var(--bg-secondary); }

.navbar__hamburger-bar {
    display: block;
    width: 100%;
    height: 1.5px;
    background: var(--text-secondary);
    border-radius: 1px;
    transition: transform 0.3s ease, opacity 0.25s ease;
    transform-origin: center;
}
.navbar__hamburger.is-open .navbar__hamburger-bar:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.navbar__hamburger.is-open .navbar__hamburger-bar:nth-child(2) { opacity: 0; transform: scaleX(0); }
.navbar__hamburger.is-open .navbar__hamburger-bar:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── Mobile overlay ─────────────────────────────────────────── */
.navbar__mobile-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(6px);
    z-index: 998;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
}
.navbar__mobile-overlay.is-open { opacity: 1; pointer-events: all; }

/* ── Mobile menu panel ──────────────────────────────────────── */
.navbar__mobile-menu {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(340px, 90vw);
    background: var(--bg-primary);
    border-left: 1px solid var(--border);
    box-shadow: -8px 0 40px rgba(15,23,42,0.08);
    z-index: 999;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    padding: 80px 24px 36px;
    overflow-y: auto;
}
.navbar__mobile-menu.is-open { transform: translateX(0); }

.navbar__mobile-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-medium);
    color: var(--text-muted);
    cursor: pointer;
    background: transparent;
    transition: background 0.2s, color 0.2s;
}
.navbar__mobile-close:hover { background: var(--bg-secondary); color: var(--text-primary); }

.navbar__mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
}

.navbar__mobile-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 13px 16px;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.9375rem;
    color: var(--text-muted);
    transition: all 0.2s var(--ease-out);
    text-decoration: none;
}
.navbar__mobile-link:hover { color: var(--text-primary); background: var(--bg-secondary); }
.navbar__mobile-link.is-active {
    color: var(--accent);
    background: var(--accent-light);
    font-weight: 600;
}

.navbar__mobile-cta {
    margin-top: 20px;
    padding: 14px 20px;
    background: var(--accent);
    color: #fff;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 600;
    font-size: 0.9375rem;
    border-radius: var(--radius-md);
    text-align: center;
    display: block;
    text-decoration: none;
    box-shadow: 0 2px 10px rgba(11,44,92,0.3);
    transition: background 0.2s, box-shadow 0.2s;
}
.navbar__mobile-cta:hover { background: var(--accent-hover); box-shadow: 0 4px 16px rgba(11,44,92,0.35); }

.navbar__mobile-footer {
    padding-top: 20px;
    border-top: 1px solid var(--border);
    margin-top: 20px;
    font-size: 0.8125rem;
    color: var(--text-subtle);
    text-align: center;
}