/* =========================
   NAVIGATION
========================= */

nav {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 9999;

    min-height: 84px;
    padding: 0 clamp(16px, 2vw, 28px);

    display: flex;
    align-items: center;
    justify-content: space-between;

    background: rgba(6, 7, 8, 0.78);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.28);
}

nav,
nav * {
    -webkit-tap-highlight-color: transparent;
}

.nav-left .brand {
    position: relative;
    isolation: isolate;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;

    font-family: "Space Grotesk", "IBM Plex Sans", sans-serif;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.nav-left .brand span {
    display: inline-block;
    vertical-align: middle;
    transform-origin: left center;
    will-change: transform, opacity;
    position: relative;
    z-index: 1;
    transform: translateX(0);
    opacity: 1;
}

nav.brand-word-animate .nav-left .brand span {
    animation: brandWordSlideAway 1.05s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

nav.brand-word-returning .nav-left .brand span {
    width: var(--brand-word-width, auto);
    overflow: visible;
    animation: brandWordSlideBack 0.85s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

nav.brand-word-hidden .nav-left .brand span {
    width: 0;
    opacity: 0;
    overflow: hidden;
    pointer-events: none;
}

nav.brand-word-hidden .nav-left .brand {
    gap: 0;
}

.nav-logo {
    width: auto;
    height: 42px;
    object-fit: contain;
    flex-shrink: 0;
    position: relative;
    z-index: 2;
}

.nav-center {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);

    display: flex;
    align-items: center;
    gap: clamp(1rem, 2vw, 1.85rem);
}

nav a {
    position: relative;
    padding: 0.55rem 0;

    color: var(--text);
    font-size: 0.92rem;
    letter-spacing: 0.04em;
    text-decoration: none;

    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

nav a:hover {
    opacity: 0.82;
}

nav a.active {
    opacity: 1;
    font-weight: 600;
}

nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;

    width: 0%;
    height: 1px;

    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.95), transparent);
    transition: width var(--transition);
}

nav a:hover::after,
nav a.active::after {
    width: 100%;
}

.nav-right {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
}

.lang-btn,
.nav-cta,
.secondary-btn,
.hamburger {
    min-height: 42px;
    padding: 0 0.95rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;

    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text);

    font-family: "Space Grotesk", sans-serif;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;

    cursor: pointer;
    transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-cta {
    text-decoration: none;
    white-space: nowrap;
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05) inset;
    transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), opacity var(--transition-fast), box-shadow var(--transition-fast);
    animation: navCtaAttention 8s ease-in-out infinite;
    transform-origin: center;
    will-change: transform, background-color, border-color, box-shadow;
}

.nav-cta::after {
    display: none;
}

.nav-cta:hover,
.nav-cta:focus-visible {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.18);
    transform: translateY(-1px);
    opacity: 1;
    animation-play-state: paused;
    box-shadow: var(--shadow-sm);
}

.nav-cta:active {
    color: #070809;
    background: rgba(255, 255, 255, 0.94);
    border-color: rgba(255, 255, 255, 0.98);
    transform: translateY(2px) scale(0.97);
    opacity: 1;
    animation-play-state: paused;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.32);
}

@keyframes navCtaAttention {
    0%, 12%, 100% {
        color: var(--text);
        background: rgba(255, 255, 255, 0.03);
        border-color: rgba(255, 255, 255, 0.1);
        transform: translateY(0);
        box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05) inset;
    }

    1.5%, 4.5%, 7.5% {
        color: #070809;
        background: rgba(255, 255, 255, 0.94);
        border-color: rgba(255, 255, 255, 0.98);
        transform: translateY(-4px);
        box-shadow: 0 8px 22px rgba(0, 0, 0, 0.38);
    }

    3%, 6%, 9% {
        color: var(--text);
        background: rgba(255, 255, 255, 0.03);
        border-color: rgba(255, 255, 255, 0.1);
        transform: translateY(3px);
        box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05) inset;
    }
}

@keyframes brandWordSlideAway {
    0% {
        opacity: 1;
        transform: translateX(0);
    }

    62% {
        opacity: 0.78;
    }

    100% {
        opacity: 0;
        transform: translateX(calc(var(--brand-slide-target, 86px) * -1));
    }
}

@keyframes brandWordSlideBack {
    0% {
        width: 0;
        opacity: 0;
        transform: translateX(calc(var(--brand-slide-target, 86px) * -1));
    }

    100% {
        width: var(--brand-word-width, auto);
        opacity: 1;
        transform: translateX(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    nav.brand-word-animate .nav-left .brand span,
    nav.brand-word-returning .nav-left .brand span,
    .nav-cta {
        animation: none;
    }
}

.lang-btn:hover,
.secondary-btn:hover,
.hamburger:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.18);
    transform: translateY(-1px);
}

.hamburger {
    display: none;
}

.lang-menu,
.secondary-nav {
    position: absolute;
    top: calc(100% + 12px);
    right: 0;

    min-width: 190px;
    padding: 12px;

    display: flex;
    flex-direction: column;
    gap: 8px;

    background: rgba(8, 9, 11, 0.98);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    box-shadow: 0 20px 44px rgba(0, 0, 0, 0.38);
    backdrop-filter: blur(16px);

    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.lang-menu.open,
nav.secondary-open .secondary-nav {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.lang-menu a,
.secondary-nav a {
    min-height: 44px;
    padding: 0.62rem 0.75rem;
    border-radius: 10px;
    line-height: 1.2;
}

.lang-menu a:hover,
.secondary-nav a:hover {
    background: rgba(255, 255, 255, 0.05);
    opacity: 1;
}

.secondary-title {
    margin-bottom: 0.15rem;
    padding: 0 0.2rem 0.25rem;

    color: rgba(255, 255, 255, 0.5);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

/* =========================
   FOOTER
========================= */

.site-footer {
    margin-top: 6rem;
    padding: 4rem 2rem 2rem;

    border-top: 1px solid rgba(255, 255, 255, 0.08);
    background: linear-gradient(180deg, rgba(8, 8, 9, 0.98), rgba(5, 6, 7, 1));
    color: rgba(255, 255, 255, 0.75);
}

.footer-grid {
    max-width: 1120px;
    margin: 0 auto;

    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: clamp(1.5rem, 3vw, 2.5rem);
}

.footer-grid > div:first-child {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.5rem;
}

.footer-logo {
    display: block;
    width: auto;
    height: 58px;
    margin-bottom: 0.3rem;
    object-fit: contain;
}

.footer-grid strong {
    display: block;
    color: var(--text);
    font-size: 1rem;
    letter-spacing: 0.08em;
}

.footer-grid p {
    max-width: 280px;
    color: rgba(255, 255, 255, 0.52);
    font-size: 0.92rem;
    line-height: 1.6;
}

.footer-links {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: 0.35rem;
    min-width: 0;
}

.footer-links a {
    display: inline-flex;
    align-items: center;
    justify-content: flex-start;
    width: fit-content;
    min-height: 44px;
    padding: 0.1rem 0;

    color: rgba(255, 255, 255, 0.64);
    font-size: 0.92rem;
    border-bottom: none;
}

.footer-links a:hover {
    color: var(--text);
    transform: translateX(2px);
}

.footer-bottom {
    margin-top: 3rem;
    text-align: center;
    font-size: 0.85rem;
    opacity: 0.55;
}

.footer-social {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 14px;
    min-height: 44px;
    margin-top: auto;
}

.footer-social a {
    color: #fff;
    opacity: 0.62;
    font-size: 16px;
    border-bottom: none;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.footer-social a:hover {
    opacity: 1;
    transform: translateY(-1px);
}

/* =========================
   RESPONSIVE NAV + FOOTER
========================= */

@media (max-width: 1180px) {
    nav {
        padding-inline: 14px;
    }

    .nav-left .brand {
        gap: 0.55rem;
    }

    .nav-left .brand span {
        font-size: 0.82rem;
    }

    .nav-center {
        position: static;
        transform: none;
        flex: 1 1 auto;
        min-width: 0;
        justify-content: center;
        gap: 0.75rem 1rem;
    }

    .nav-right {
        margin-left: 0;
        flex-shrink: 0;
    }

    nav a {
        font-size: 0.82rem;
    }
}

@media (max-width: 860px) {
    nav {
        min-height: 78px;
        padding-inline: 14px;
    }

    .nav-logo {
        height: 38px;
    }

    .nav-left .brand span {
        font-size: 0.88rem;
    }

    .nav-center {
        display: none;
        left: 12px;
        right: 12px;
        transform: none;
    }

    nav.menu-open .nav-center {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
        position: absolute;
        top: calc(100% + 12px);

        padding: 16px;
        border-radius: 18px;
        background: rgba(8, 9, 11, 0.98);
        border: 1px solid rgba(255, 255, 255, 0.12);
        box-shadow: 0 20px 44px rgba(0, 0, 0, 0.38);
        backdrop-filter: blur(16px);
    }

    nav.menu-open .nav-center a {
        width: 100%;
        min-height: 44px;
        padding: 0.7rem 0.85rem;
        border-radius: 10px;
    }

    nav.menu-open .nav-center a::after {
        display: none;
    }

    nav.menu-open .nav-center a:hover {
        background: rgba(255, 255, 255, 0.05);
    }

    .hamburger {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .nav-cta {
        padding-inline: 0.75rem;
        font-size: 0.72rem;
        letter-spacing: 0.06em;
    }

    .lang-menu,
    .secondary-nav {
        right: 12px;
        left: 12px;
        min-width: 0;
    }

    .site-footer {
        padding-inline: 1rem;
    }

    .footer-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 1.25rem 1rem;
    }

    .footer-grid > div:first-child {
        grid-column: 1 / -1;
    }

    .footer-links {
        align-items: center;
        justify-content: flex-start;
        text-align: center;
    }

    .footer-links a {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    nav {
        padding-inline: 12px;
    }

    .nav-right {
        gap: 6px;
    }

    .nav-left .brand span {
        display: none;
        visibility: hidden;
        width: 0;
        opacity: 0;
        pointer-events: none;
    }

    .nav-left .brand {
        gap: 0;
    }

    .lang-btn,
    .nav-cta,
    .secondary-btn,
    .hamburger {
        min-height: 38px;
        padding-inline: 0.65rem;
        font-size: 0.68rem;
    }

    .nav-cta {
        max-width: 124px;
        padding-inline: 0.55rem;
        letter-spacing: 0.04em;
        line-height: 1.05;
        text-align: center;
        white-space: normal;
    }

    nav:not(.brand-word-hidden) .nav-cta,
    nav.brand-word-hidden .nav-cta {
        display: inline-flex;
        visibility: visible;
        opacity: 1;
        pointer-events: auto;
        animation: navCtaAttention 8s ease-in-out infinite;
        animation-play-state: running;
    }

    @media (hover: none), (pointer: coarse) {
        .nav-cta:focus-visible {
            color: #070809;
            background: rgba(255, 255, 255, 0.94);
            border-color: rgba(255, 255, 255, 0.98);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
    }

    .footer-grid {
        gap: 1rem 0.75rem;
    }

    .footer-grid p {
        max-width: none;
    }
}

@media (max-width: 360px) {
    nav {
        padding-inline: 8px;
    }

    .nav-right {
        gap: 4px;
    }

    .secondary-btn {
        display: none;
    }

    .nav-cta {
        max-width: 110px;
        padding-inline: 0.4rem;
        font-size: 0.6rem;
    }
}

@media (hover: none), (pointer: coarse) {
    nav .nav-cta:not(:active) {
        animation: navCtaAttention 8s ease-in-out infinite;
        animation-play-state: running;
    }
}

@media (prefers-reduced-motion: reduce) {
    nav .nav-cta {
        animation: none !important;
        will-change: auto;
    }
}