/* ================================================================
   GLOBAL NAV — nav.css
   ================================================================ */

.site-nav {
    position: fixed;
    top: 58px;
    left: 60px;
    right: 60px;
    z-index: 9000;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 22px;
    border: 2px solid var(--nav-border, rgba(255, 255, 255, 0.18));
    border-radius: 16px;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    transition: background 0.45s ease, border-color 0.45s ease, backdrop-filter 0.45s ease;
    box-sizing: border-box;
}

.site-nav.is-scrolled {
    background: var(--nav-bg-scrolled);
    border-color: var(--nav-border-scrolled, rgba(255, 255, 255, 0.25));
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

/* ── LEFT ────────────────────────────────────────────────────── */

.nav-left {
    flex: 1;
    display: flex;
    align-items: center;
    min-width: 0;
}

.nav-left-text {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--nav-fg, rgba(255, 255, 255, 0.42));
    text-decoration: none;
    white-space: nowrap;
    cursor: default;
    transition: color 0.25s;
    min-width: 9ch;
    display: inline-block;
}

a.nav-left-text {
    cursor: pointer;
}

a.nav-left-text:hover {
    color: var(--nav-fg-hover, #fff);
}

/* ── CENTER — ICONS ──────────────────────────────────────────── */

.nav-icons {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 28px;
    pointer-events: none;
}

.nav-icon {
    width: 20px;
    height: 20px;
    color: var(--nav-fg-icon, var(--nav-fg, rgba(255, 255, 255, 0.55)));
    flex-shrink: 0;
    opacity: 1;
}

.nav-icon svg {
    width: 100%;
    height: 100%;
    display: block;
    opacity: 0.55;
}

.nav-icon:nth-child(2) svg {
    opacity: 0.88;
    transform: scale(1.12);
    transform-origin: center;
}

/* Sequential icon swap animations */

@keyframes navIconOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-8px);
    }
}

@keyframes navIconIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.nav-icon.is-out svg {
    animation: navIconOut 150ms cubic-bezier(0.4, 0, 1, 1) forwards;
}

.nav-icon.is-in svg {
    animation: navIconIn 200ms cubic-bezier(0, 0, 0.2, 1) forwards;
}

/* ── RIGHT — LINKS ───────────────────────────────────────────── */

.nav-links {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 28px;
}

.nav-link {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.66rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--nav-fg, rgba(255, 255, 255, 0.42));
    text-decoration: none;
    transition: color 0.25s;
    position: relative;
    white-space: nowrap;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 1.5px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

.nav-link:hover {
    color: var(--nav-fg-hover, #fff);
}

.nav-link:hover::after {
    transform: scaleX(1);
}

.nav-link.is-active {
    color: var(--nav-fg-active, #fff);
}

.nav-link.is-active::after {
    transform: scaleX(1);
    opacity: 0.55;
}

/* ── PAGE-SPECIFIC COLORS ────────────────────────────────────── */

/* Index */

body.page-index .site-nav {
    --nav-border: rgba(45, 45, 45, 0.22);
    --nav-bg-scrolled: rgba(26, 22, 20, 0.90);
    --nav-border-scrolled: rgba(45, 45, 45, 0.35);
    --nav-fg: rgba(45, 45, 45, 0.72);
    --nav-fg-hover: #1C1814;
    --nav-fg-active: #1C1814;
}

/* Projects */

body.page-uxui .site-nav {
    --nav-border: rgba(10, 25, 41, 0.38);
    --nav-bg-scrolled: rgba(239, 68, 68, 0.92);
    --nav-border-scrolled: rgba(10, 25, 41, 0.45);
    --nav-fg: rgba(10, 25, 41, 0.65);
    --nav-fg-icon: rgba(10, 25, 41, 0.65);
    --nav-fg-hover: #0a1929;
    --nav-fg-active: #0a1929;
}

/* Artworks — text/icons/border in dark navy (#0a1929), bg unchanged */

body.page-artworks .site-nav {
    --nav-border: rgba(10, 25, 41, 0.38);
    --nav-bg-scrolled: rgba(29, 78, 216, 0.92);
    --nav-border-scrolled: rgba(10, 25, 41, 0.45);
    --nav-fg: rgba(10, 25, 41, 0.65);
    --nav-fg-icon: rgba(10, 25, 41, 0.65);
    --nav-fg-hover: #0a1929;
    --nav-fg-active: #0a1929;
}

/* Project detail — dark */

body.page-detail .site-nav {
    --nav-border: rgba(255, 255, 255, 0.38);
    --nav-bg-scrolled: rgba(12, 10, 8, 0.90);
    --nav-border-scrolled: rgba(255, 255, 255, 0.45);
    --nav-fg: rgba(255, 255, 255, 0.68);
    --nav-fg-hover: #fff;
    --nav-fg-active: #fff;
}

/* Contact */

body.page-contact .site-nav {
    --nav-border: rgba(255, 255, 255, 0.14);
    --nav-bg-scrolled: rgba(10, 8, 20, 0.90);
    --nav-border-scrolled: rgba(255, 255, 255, 0.20);
    --nav-fg: rgba(255, 255, 255, 0.42);
    --nav-fg-hover: #fff;
    --nav-fg-active: #fff;
}

/* ── MOBILE ───────────────────────────────────────────────────── */

@media (max-width: 768px) {
    .site-nav {
        top: 22px;
        left: 28px;
        right: 28px;
        height: 46px;
        padding: 0 14px;
        gap: 0;
        border-width: 2px;
        border-radius: 12px;
    }
    /* Hide center icons — not enough room */
    .nav-icons {
        display: none;
    }
    .nav-left-text {
        font-size: 0.78rem;
        letter-spacing: 0.11em;
        min-width: 0;
    }
    .nav-links {
        gap: 14px;
    }
    .nav-link {
        font-size: 0.78rem;
        letter-spacing: 0.10em;
    }
}

@media (max-width: 400px) {
    .site-nav {
        left: 22px;
        right: 22px;
        padding: 0 12px;
    }
    /* Hide NISHANT/MOGHA label on Index, HOME / I WANT TO BELIEVE stays on other pages */
    body.page-index .nav-left-text {
        display: none;
    }
    .nav-links {
        justify-content: center;
        gap: 16px;
    }
}

/* ── HAMBURGER BUTTON ────────────────────────────────────── */

@keyframes burgerWave {
    0%,
    100% {
        transform: scaleX(1);
        opacity: 0.55;
    }
    50% {
        transform: scaleX(0.5);
        opacity: 1;
    }
}

.nav-burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: flex-end;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    flex-shrink: 0;
}

.nav-burger span {
    display: block;
    height: 3px;
    background: var(--nav-fg, rgba(255, 255, 255, 0.8));
    border-radius: 2px;
    transform-origin: right center;
}

.nav-burger span:nth-child(1) {
    width: 22px;
    animation: burgerWave 1.6s ease-in-out infinite 0s;
}

.nav-burger span:nth-child(2) {
    width: 14px;
    animation: burgerWave 1.6s ease-in-out infinite 0.28s;
}

.nav-burger span:nth-child(3) {
    width: 22px;
    animation: burgerWave 1.6s ease-in-out infinite 0.56s;
}

.nav-burger:hover span {
    animation: none;
    transition: transform 0.30s cubic-bezier(0.22, 1, 0.36, 1), width 0.30s cubic-bezier(0.22, 1, 0.36, 1);
}

.nav-burger:hover span:nth-child(1) {
    width: 14px;
    transform: translateX(8px);
}

.nav-burger:hover span:nth-child(2) {
    width: 22px;
    transform: translateX(-4px);
}

.nav-burger:hover span:nth-child(3) {
    width: 14px;
    transform: translateX(8px);
}

/* ── MOBILE MENU OVERLAY ─────────────────────────────────── */

.mob-menu {
    position: fixed;
    inset: 0;
    z-index: 9500;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
}

.mob-menu.is-open {
    opacity: 1;
    pointer-events: all;
}

/* Nav bar gizle menü açıkken */

body.mob-menu-open .site-nav {
    opacity: 0;
    pointer-events: none;
}

.mob-menu-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 48px;
    height: 48px;
    background: rgba(0, 0, 0, 0.32);
    border: 1.5px solid rgba(255, 255, 255, 0.38);
    border-radius: 16px;
    cursor: pointer;
    color: rgba(255, 255, 255, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.2s;
}

.mob-menu-close:hover {
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.75);
    transform: rotate(90deg);
}

.mob-menu-close svg {
    width: 22px;
    height: 22px;
}

.mob-menu-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 36px;
}

.mob-menu-link {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.65);
    text-decoration: none;
    transition: color 0.2s;
}

.mob-menu-link:hover,
.mob-menu-link.is-active {
    color: #fff;
}

.mob-menu-social {
    position: absolute;
    bottom: 40px;
    display: flex;
    gap: 36px;
}

.mob-menu-social-link {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
    text-decoration: none;
    transition: color 0.2s;
}

.mob-menu-social-link:hover {
    color: rgba(255, 255, 255, 0.90);
}

/* ── OVERLAY BACKGROUND PER PAGE ─────────────────────────── */

body.page-uxui .mob-menu {
    background: rgba(185, 28, 28, 0.97);
}

body.page-artworks .mob-menu {
    background: rgba(29, 78, 216, 0.97);
}

body.page-contact .mob-menu {
    background: rgba(20, 20, 26, 0.97);
}

body.page-detail .mob-menu {
    background: rgba(10, 8, 8, 0.97);
}

/* ── MOBILE: burger görünür, nav-links gizli ─────────────── */

@media (max-width: 768px) {
    body:not(.page-index) .nav-links {
        display: none;
    }
    body:not(.page-index) .nav-burger {
        display: flex;
    }
}

/* ── NON-INDEX PAGES — MOBILE: white nav ────────────────── */

@media (max-width: 768px) {
    body.page-uxui .site-nav,
    body.page-artworks .site-nav,
    body.page-contact .site-nav,
    body.page-detail .site-nav {
        --nav-border: rgba(255, 255, 255, 0.65);
        --nav-border-scrolled: rgba(255, 255, 255, 0.75);
        --nav-fg: rgba(255, 255, 255, 0.95);
        --nav-fg-icon: rgba(255, 255, 255, 0.95);
        --nav-fg-hover: #fff;
        --nav-fg-active: #fff;
    }
}

/* ── INDEX — MOBILE OVERRIDES ────────────────────────────── */

@media (max-width: 768px) {
    body.page-index .site-nav {
        --nav-border: rgba(45, 45, 45, 0.28);
        --nav-border-scrolled: rgba(45, 45, 45, 0.40);
        --nav-fg: rgba(45, 45, 45, 0.80);
    }
    body.page-index .site-nav .nav-left {
        display: none;
    }
    body.page-index .site-nav .nav-links {
        flex: 1;
        justify-content: center;
        gap: 32px;
    }
    body.page-index .site-nav .nav-link {
        font-size: 0.78rem;
        padding: 8px 4px;
    }
}