/* LNGRIG — navigation polish & scroll motion */

/* ——— Scroll progress ——— */
.nav-progress {
    position: absolute;
    left: 0;
    bottom: 0;
    height: 3px;
    width: 0;
    background: linear-gradient(90deg, var(--amber), #f5c542);
    box-shadow: 0 0 12px rgba(232, 163, 23, 0.6);
    transition: width 0.08s linear;
    z-index: 210;
    pointer-events: none;
}
.site-header { position: sticky; }
.site-header.is-compact .nav-wrap { padding-top: 0.55rem; padding-bottom: 0.55rem; }
.site-header.is-compact .brand-logo { width: 52px; height: 52px; transition: width 0.35s ease, height 0.35s ease; }

/* ——— Desktop nav links ——— */
.nav-bar {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.5rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: background 0.35s, border-color 0.35s, box-shadow 0.35s;
}
body.scrolled .nav-bar,
.site-header.is-compact .nav-bar {
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}
body.header-over-hero:not(.scrolled) .nav-bar {
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(8px);
}

.nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 0.85rem;
    border-radius: 999px;
    color: #e2e8f0;
    font-weight: 500;
    font-size: 0.88rem;
    overflow: hidden;
    transition: color 0.25s, background 0.25s, transform 0.25s;
}
.nav-link span { position: relative; z-index: 1; }
.nav-link::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: rgba(232, 163, 23, 0.15);
    transform: scale(0.85);
    opacity: 0;
    transition: transform 0.35s cubic-bezier(0.34, 1.4, 0.64, 1), opacity 0.25s;
}
.nav-link::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0.35rem;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--amber);
    transform: translateX(-50%) scale(0);
    transition: transform 0.35s cubic-bezier(0.34, 1.4, 0.64, 1);
}
.nav-link:hover {
    color: #fff;
    transform: translateY(-1px);
}
.nav-link:hover::before {
    opacity: 1;
    transform: scale(1);
}
.nav-link.is-active {
    color: var(--amber);
    font-weight: 600;
}
.nav-link.is-active::after {
    transform: translateX(-50%) scale(1);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 0.35rem;
    padding-left: 0.5rem;
    border-left: 1px solid rgba(255, 255, 255, 0.12);
}
.nav-link--account { font-size: 0.85rem; }
.nav-cta {
    padding: 0.5rem 1rem !important;
    font-size: 0.85rem !important;
    border-radius: 999px !important;
    box-shadow: 0 4px 16px rgba(232, 163, 23, 0.35);
    animation: navCtaGlow 3s ease-in-out infinite;
}
@keyframes navCtaGlow {
    0%, 100% { box-shadow: 0 4px 16px rgba(232, 163, 23, 0.35); }
    50% { box-shadow: 0 4px 22px rgba(232, 163, 23, 0.55); }
}

/* ——— Mobile toggle (hamburger → X) ——— */
.nav-toggle {
    position: relative;
    z-index: 220;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    transition: background 0.25s, border-color 0.25s;
    flex-shrink: 0;
    -webkit-tap-highlight-color: transparent;
}
.nav-toggle-icon {
    position: relative;
    width: 20px;
    height: 14px;
    display: block;
}
.nav-toggle-bar {
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: transform 0.35s cubic-bezier(0.34, 1.4, 0.64, 1), top 0.35s, opacity 0.25s;
}
.nav-toggle-bar:nth-child(1) { top: 0; }
.nav-toggle-bar:nth-child(2) { top: 6px; }
.nav-toggle-bar:nth-child(3) { top: 12px; }
.nav-wrap.show-menu .nav-toggle-bar:nth-child(1) { top: 6px; transform: rotate(45deg); }
.nav-wrap.show-menu .nav-toggle-bar:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-wrap.show-menu .nav-toggle-bar:nth-child(3) { top: 6px; transform: rotate(-45deg); }

.nav-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(11, 31, 58, 0.55);
    backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s, visibility 0.35s;
    z-index: 180;
}
.nav-backdrop.is-visible {
    opacity: 1;
    visibility: visible;
}

/* ——— Hero entrance ——— */
@keyframes motionFadeUp {
    from { opacity: 0; transform: translateY(28px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes motionFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes motionScaleIn {
    from { opacity: 0; transform: scale(0.96); }
    to { opacity: 1; transform: scale(1); }
}

.hero-content .page-hero-label { animation: motionFadeUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) backwards; }
.hero-content h1 { animation: motionFadeUp 0.85s cubic-bezier(0.22, 1, 0.36, 1) 0.08s backwards; }
.hero-content .hero-lead { animation: motionFadeUp 0.85s cubic-bezier(0.22, 1, 0.36, 1) 0.16s backwards; }
.hero-content .hero-actions { animation: motionFadeUp 0.85s cubic-bezier(0.22, 1, 0.36, 1) 0.24s backwards; }
.hero-filmstrip-wrap { animation: motionFadeIn 1s ease 0.35s backwards; }

.page-banner-content {
    animation: motionFadeUp 0.75s cubic-bezier(0.22, 1, 0.36, 1) backwards;
}

/* ——— Scroll reveal ——— */
.reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.65s cubic-bezier(0.22, 1, 0.36, 1), transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}
.reveal-stagger > .reveal-child {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.55s cubic-bezier(0.22, 1, 0.36, 1), transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal-stagger.is-visible > .reveal-child {
    opacity: 1;
    transform: translateY(0);
}
.reveal-stagger.is-visible > .reveal-child:nth-child(1) { transition-delay: 0.05s; }
.reveal-stagger.is-visible > .reveal-child:nth-child(2) { transition-delay: 0.1s; }
.reveal-stagger.is-visible > .reveal-child:nth-child(3) { transition-delay: 0.15s; }
.reveal-stagger.is-visible > .reveal-child:nth-child(4) { transition-delay: 0.2s; }
.reveal-stagger.is-visible > .reveal-child:nth-child(5) { transition-delay: 0.25s; }
.reveal-stagger.is-visible > .reveal-child:nth-child(6) { transition-delay: 0.3s; }
.reveal-stagger.is-visible > .reveal-child:nth-child(n+7) { transition-delay: 0.35s; }

/* Interactive polish */
.card, .service-card, .stat, .services-pillar {
    transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.35s;
}
.btn {
    transition: transform 0.2s cubic-bezier(0.34, 1.4, 0.64, 1), background 0.2s, box-shadow 0.2s;
}
.btn:active { transform: translateY(0) scale(0.98); }
.site-footer { animation: motionFadeIn 0.8s ease backwards; }

html { scroll-behavior: smooth; }

@media (min-width: 901px) {
    .nav-toggle { display: none !important; }
}

@media (max-width: 1100px) {
    .nav-link { padding: 0.45rem 0.65rem; font-size: 0.82rem; }
    .nav-bar { gap: 0.15rem; }
}

@media (max-width: 900px) {
    .nav-wrap {
        flex-wrap: wrap;
        align-items: center;
    }
    .nav-toggle {
        display: flex !important;
        margin-left: auto;
        order: 2;
    }
    .brand--logo {
        order: 1;
        max-width: calc(100% - 52px);
        flex: 1;
        min-width: 0;
    }
    .main-nav {
        order: 3;
        flex-basis: 100%;
    }
    .nav-bar {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        border-radius: 12px;
        padding: 0.75rem;
        gap: 0.15rem;
        background: rgba(19, 45, 82, 0.98);
        border: 1px solid rgba(255, 255, 255, 0.1);
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transform: translateY(-8px);
        transition: max-height 0.45s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.35s, transform 0.35s, padding 0.35s;
    }
    .nav-wrap.show-menu .nav-bar {
        max-height: 85vh;
        overflow-y: auto;
        opacity: 1;
        transform: translateY(0);
        margin-top: 0.5rem;
    }
    .nav-link {
        width: 100%;
        border-radius: 8px;
        padding: 0.65rem 0.85rem;
        opacity: 0;
        transform: translateX(-12px);
        transition: opacity 0.35s, transform 0.35s, color 0.25s, background 0.25s;
    }
    .nav-wrap.show-menu .nav-link {
        opacity: 1;
        transform: translateX(0);
    }
    .nav-wrap.show-menu .nav-link:nth-child(1) { transition-delay: 0.05s; }
    .nav-wrap.show-menu .nav-link:nth-child(2) { transition-delay: 0.08s; }
    .nav-wrap.show-menu .nav-link:nth-child(3) { transition-delay: 0.11s; }
    .nav-wrap.show-menu .nav-link:nth-child(4) { transition-delay: 0.14s; }
    .nav-wrap.show-menu .nav-link:nth-child(5) { transition-delay: 0.17s; }
    .nav-wrap.show-menu .nav-link:nth-child(6) { transition-delay: 0.2s; }
    .nav-wrap.show-menu .nav-link:nth-child(7) { transition-delay: 0.23s; }
    .nav-actions {
        flex-direction: column;
        width: 100%;
        margin: 0.5rem 0 0;
        padding: 0.75rem 0 0;
        border-left: none;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    .nav-actions .nav-link,
    .nav-actions .nav-cta {
        width: 100%;
        text-align: center;
        justify-content: center;
    }
    .main-nav { display: block !important; width: 100%; border-top: none; padding: 0; }
    .nav-wrap:not(.show-menu) .main-nav { display: none !important; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .reveal, .reveal-stagger > .reveal-child,
    .hero-content .page-hero-label,
    .hero-content h1,
    .hero-content .hero-lead,
    .hero-content .hero-actions,
    .hero-filmstrip-wrap,
    .page-banner-content {
        animation: none !important;
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }
    .nav-cta { animation: none; }
    .nav-link, .nav-bar, .nav-backdrop { transition: none; }
}