#nav {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%);
    margin: 0;
    padding: 14px 24px;
    width: calc(90% - 48px);
    max-width: 760px;
    background: rgba(255, 255, 255, 0.9);
    color: #212529;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    border-radius: 18px;
    border: 1px solid rgba(173, 181, 189, 0.35);
    z-index: 1000;
    box-shadow: 0 18px 36px rgba(33, 37, 41, 0.08);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    transition: width 0.45s cubic-bezier(0.22, 1, 0.36, 1), max-width 0.45s cubic-bezier(0.22, 1, 0.36, 1), padding 0.35s ease, gap 0.35s ease;
}


#nav a {
    color: #1a2547;
    text-decoration: none;
    font-size: 18px;
    font-weight: 400;
    letter-spacing: -0.01em;
}
#nav a:hover {
    color: #000000;
}
#nav a.logo {
    font-weight: 600;
    font-size: 20px;
    font-family: "Sora-Variable", system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    letter-spacing: -0.02em;
}
#nav > .logo {
    order: 0;
    flex-shrink: 0;
}

#nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 16px;
    order: 1;
    flex: 0 0 auto;
    margin-left: auto;
    overflow: hidden;
    transition: margin 0.35s ease, transform 0.5s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.35s ease, filter 0.35s ease;
}

#nav ul li {
    list-style: none;
}

#nav ul a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border-radius: 999px;
    background-color: transparent;
    transform: translateY(0);
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.25s ease;
}

#nav ul a[aria-current="page"] {
    background-color: rgba(33, 37, 41, 0.08);
    font-weight: 500;
}

#nav ul a:hover {
    background-color: rgba(33, 37, 41, 0.08);
    transform: translateY(-4px);
}

.nav-close {
    display: none;
    position: absolute;
    top: clamp(24px, 5vh, 48px);
    right: clamp(18px, 6vw, 48px);
    width: 48px;
    height: 48px;
    border-radius: 999px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    background: rgba(247, 247, 247, 0.92);
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transform: translate3d(18%, -18%, 0) scale(0.55) rotate(-10deg);
    box-shadow: 0 18px 36px rgba(33, 37, 41, 0.08);
    transition: background-color 0.2s ease;
    z-index: 1101;
}

.nav-close:hover {
    background: rgba(247, 247, 247, 1);
}

.nav-close:focus-visible {
    outline: 2px solid #212529;
    outline-offset: 4px;
}

.nav-close-icon {
    position: relative;
    width: 20px;
    height: 20px;
}

.nav-close-icon::before,
.nav-close-icon::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 2px;
    border-radius: 999px;
    background-color: #212529;
    transform-origin: center;
}

.nav-close-icon::before {
    transform: translate(-50%, -50%) rotate(45deg);
}

.nav-close-icon::after {
    transform: translate(-50%, -50%) rotate(-45deg);
}

.nav-toggle {
    order: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 6px;
    width: 44px;
    height: 44px;
    border-radius: 999px;
    border: 1px solid rgba(173, 181, 189, 0.35);
    background: rgba(255, 255, 255, 0.85);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateX(12px) scale(0.6);
    transition: border-color 0.2s ease, background-color 0.2s ease, opacity 0.35s ease, transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
    margin-left: 16px;
}

.nav-toggle:hover {
    border-color: rgba(108, 117, 125, 0.6);
    background: rgba(255, 255, 255, 1);
}

.nav-toggle-bar {
    width: 20px;
    height: 2px;
    border-radius: 999px;
    background-color: #212529;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

#nav.menu-open .nav-toggle-bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

#nav.menu-open .nav-toggle-bar:nth-child(2) {
    opacity: 0;
}

#nav.menu-open .nav-toggle-bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

body.nav-open {
    overflow: hidden;
}

#nav.nav-scrolled .nav-toggle {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(0) scale(1);
}

#nav ul {
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.35s ease, filter 0.35s ease;
    transform-origin: calc(100% - 8px) 50%;
}

#nav ul li {
    transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.35s ease;
}

#nav ul li:nth-child(2) {
    transition-delay: 0.05s;
}

#nav ul li:nth-child(3) {
    transition-delay: 0.1s;
}

#nav.nav-scrolled:not(.menu-open) ul {
    opacity: 0;
    transform: translateX(48px) scale(0.4);
    filter: blur(6px);
    pointer-events: none;
    margin-left: 0;
    width: 0;
}


#nav.nav-scrolled:not(.menu-open) ul li {
    opacity: 0;
    transform: translateX(32px);
}

#nav.nav-scrolled:not(.menu-open) .nav-close {
    display: none;
}

#nav.menu-open {
    top: 0;
    left: 0;
    right: 0;
    transform: none;
    width: 100%;
    max-width: none;
    height: 100vh;
    padding: 0;
    background: #ffffff;
    border: none;
    border-radius: 0;
    box-shadow: none;
    flex-direction: column;
    align-items: flex-start;
    gap: clamp(40px, 10vh, 72px);
}

#nav.menu-open > .logo {
    display: none;
}

#nav.menu-open .nav-toggle {
    opacity: 0;
    pointer-events: none;
}

#nav.menu-open .nav-close {
    display: flex;
    opacity: 1;
    pointer-events: auto;
    transform: translate3d(0, 0, 0) scale(1) rotate(0deg);
    animation: navCloseReveal 0.5s cubic-bezier(0.19, 1, 0.22, 1) forwards;
}

#nav.menu-open ul {
    position: fixed;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    gap: clamp(28px, 7vh, 60px);
    width: 100%;
    height: 100%;
    padding: clamp(36px, 12vh, 96px) clamp(32px, 8vw, 80px);
    max-width: min(720px, 90vw);
    margin: 0 auto;
    background: #ffffff;
    visibility: visible;
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
    transform-origin: top right;
    pointer-events: auto;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

#nav.menu-open ul li {
    width: auto;
    text-align: left;
    opacity: 1;
    transform: translate3d(0, 0, 0);
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.45s ease;
}

#nav.menu-open ul li:nth-child(1) {
    transition-delay: 0.05s;
}

#nav.menu-open ul li:nth-child(2) {
    transition-delay: 0.1s;
}

#nav.menu-open ul li:nth-child(3) {
    transition-delay: 0.15s;
}

#nav.menu-open ul a {
    display: block;
    padding: 0;
    background: none;
    font-size: clamp(48px, 11vw, 72px);
    font-family: "Sora-Variable", system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    letter-spacing: -0.03em;
    color: #1a2547;
    text-align: left;
}

#nav.menu-open ul a:hover {
    background: none;
    color: #000;
}

@media (max-width: 720px) {
    #nav {
        width: calc(90% - 36px);
        padding: 12px 18px;
        max-width: none;
        transition: padding 0.4s ease;
        justify-content: space-between;
    }

    #nav ul {
        flex: 0 0 auto;
        margin: 0;
    }

    .nav-toggle {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: translateX(0) scale(1);
        margin-left: 16px;
    }

    #nav:not(.menu-open) ul {
        position: fixed;
        inset: 0;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: flex-start;
        gap: clamp(32px, 8vh, 56px);
        width: 100%;
        height: 100%;
        padding: clamp(24px, 6vh, 48px) clamp(28px, 8vw, 56px);
        background: #ffffff;
        visibility: hidden;
        opacity: 0;
        transform: translate3d(22%, -22%, 0) scale(0.9);
        transform-origin: top right;
        transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.4s ease;
        pointer-events: none;
    }

    #nav:not(.menu-open) ul li {
        width: auto;
        text-align: left;
        opacity: 0;
        transform: translate3d(12%, -18%, 0);
        transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.45s ease;
    }
}

@media (max-width: 480px) {
    #nav {
        top: 16px;
        width: calc(90% - 24px);
        padding: 10px 16px;
    }

    #nav > .logo {
        font-size: 18px;
    }

    #nav ul {
        padding: clamp(20px, 6vh, 36px) clamp(16px, 9vw, 32px);
        gap: clamp(28px, 9vh, 44px);
    }

    .nav-close {
        top: clamp(16px, 4vh, 32px);
        right: clamp(16px, 10vw, 36px);
    }

    #nav.menu-open ul {
        padding: clamp(24px, 11vh, 48px) clamp(16px, 9vw, 28px);
        gap: clamp(24px, 9vh, 38px);
        max-width: none;
        margin: 0;
    }

}

@media (min-width: 721px) {
    #nav.menu-open ul {
        padding: clamp(48px, 12vh, 110px) clamp(80px, 12vw, 160px);
        gap: clamp(36px, 8vh, 72px);
        max-width: min(840px, 78vw);
    }

    #nav.menu-open ul a {
        font-size: clamp(60px, 5vw, 128px);
    }

    #nav.menu-open .nav-close {
        width: 56px;
        height: 56px;
    }
}

@keyframes navCloseReveal {
    0% {
        opacity: 0;
        transform: translate3d(18%, -18%, 0) scale(0.55) rotate(-10deg);
    }
    60% {
        opacity: 1;
        transform: translate3d(-4%, 6%, 0) scale(1.05) rotate(4deg);
    }
    100% {
        opacity: 1;
        transform: translate3d(0, 0, 0) scale(1) rotate(0deg);
    }
}

#nav.nav-scrolled:not(.menu-open) {
    width: calc(90% - 48px);
    max-width: 760px;
    padding: 14px 24px;
    gap: 18px;
}