/* =======================================================
   Zulu Code — Shared Navigation
   Single source of truth for the menu bar across every page
   ======================================================= */

:root {
    --nav-black: #0a0a0a;
    --nav-white: #f8f8f6;
    --nav-pure-white: #ffffff;
    --nav-magenta: #E5006D;
    --nav-teal: #00877A;
    --nav-teal-light: #00A896;
    --nav-font-display: 'Syne', sans-serif;
    --nav-font-body: 'Outfit', sans-serif;
    --nav-ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --nav-ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
}

/* Reset for nav elements only (won't break pages with their own resets) */
.nav *, .mobile-menu * { box-sizing: border-box; }

/* Desktop nav bar */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 1.25rem 0;
    transition: all 0.4s var(--nav-ease-out-quart);
    background: transparent;
}
.nav.scrolled {
    background: rgba(10,10,10,0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 64px);
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 1001;
    text-decoration: none;
}
.nav-logo img { height: 36px; width: auto; display: block; }
.nav-logo-text {
    font-family: var(--nav-font-display);
    font-weight: 800;
    font-size: 1.15rem;
    color: var(--nav-pure-white);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}
.nav-link {
    font-family: var(--nav-font-body);
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(255,255,255,0.65);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    transition: color 0.3s ease;
    position: relative;
    text-decoration: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}
.nav-link:hover { color: var(--nav-pure-white); }
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--nav-magenta);
    transition: width 0.35s var(--nav-ease-out-expo);
}
.nav-link:hover::after { width: 100%; }
.nav-cta-btn {
    font-family: var(--nav-font-body);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--nav-pure-white);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: transparent;
    border: 1.5px solid rgba(255,255,255,0.3);
    padding: 0.6rem 1.5rem;
    border-radius: 2px;
    transition: all 0.3s ease;
    text-decoration: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
}
.nav-cta-btn:hover {
    background: var(--nav-magenta);
    border-color: var(--nav-magenta);
    color: var(--nav-pure-white);
}

/* Hamburger */
.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    padding: 6px;
    z-index: 1001;
    cursor: pointer;
}
.nav-hamburger span {
    display: block;
    width: 24px;
    height: 1.5px;
    background: var(--nav-pure-white);
    transition: all 0.3s ease;
    transform-origin: center;
}
.nav-hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(4px, 5px); }
.nav-hamburger.active span:nth-child(2) { opacity: 0; }
.nav-hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(4px, -5px); }

/* Mobile full-screen menu */
.mobile-menu {
    position: fixed;
    inset: 0;
    background: var(--nav-black);
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    opacity: 0;
    visibility: hidden;
    overflow-y: auto;
    padding: 6rem 2rem 3rem;
    transition: all 0.4s var(--nav-ease-out-expo);
}
.mobile-menu.active { opacity: 1; visibility: visible; }
.mobile-menu > a,
.mobile-dropdown-trigger {
    font-family: var(--nav-font-display);
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 700;
    color: var(--nav-pure-white);
    text-transform: lowercase;
    transition: color 0.3s ease;
    background: none;
    border: none;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
}
.mobile-menu > a:hover,
.mobile-dropdown-trigger:hover { color: var(--nav-magenta); }

@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-hamburger { display: flex; }
}

/* MEGA-MENU DROPDOWN (desktop) */
.nav-dropdown { position: relative; }
.nav-dropdown-trigger {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    font-family: var(--nav-font-body);
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(255,255,255,0.65);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    transition: color 0.3s ease;
}
.nav-dropdown-trigger:hover,
.nav-dropdown-trigger[aria-expanded="true"] { color: var(--nav-pure-white); }
.nav-caret { transition: transform 0.3s var(--nav-ease-out-expo); }
.nav-dropdown-trigger[aria-expanded="true"] .nav-caret { transform: rotate(180deg); }
.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 14px);
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    min-width: 340px;
    background: rgba(15,15,15,0.96);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 8px;
    padding: 0.75rem;
    box-shadow: 0 20px 60px rgba(0,0,0,0.6), 0 0 0 1px rgba(0,168,150,0.04);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s var(--nav-ease-out-expo), transform 0.3s var(--nav-ease-out-expo), visibility 0.25s;
}
.nav-dropdown.open .nav-dropdown-menu,
.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}
.nav-dropdown-menu::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%) rotate(45deg);
    width: 12px;
    height: 12px;
    background: rgba(15,15,15,0.96);
    border-top: 1px solid rgba(255,255,255,0.08);
    border-left: 1px solid rgba(255,255,255,0.08);
}
.nav-dropdown-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 12px 14px;
    border-radius: 6px;
    text-transform: none;
    letter-spacing: 0;
    text-decoration: none;
    color: var(--nav-pure-white);
    transition: background 0.2s ease, transform 0.3s var(--nav-ease-out-expo);
}
.nav-dropdown-item:hover,
.nav-dropdown-item:focus-visible {
    background: rgba(0,168,150,0.08);
    transform: translateX(2px);
    outline: none;
}
.nav-dropdown-num {
    font-family: var(--nav-font-display);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--nav-teal-light);
    letter-spacing: 0.1em;
    margin-top: 3px;
    min-width: 18px;
}
.nav-dropdown-body { display: flex; flex-direction: column; gap: 2px; }
.nav-dropdown-title {
    font-family: var(--nav-font-display);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--nav-pure-white);
    letter-spacing: 0;
}
.nav-dropdown-desc {
    font-size: 0.78rem;
    font-weight: 400;
    color: rgba(255,255,255,0.5);
    line-height: 1.4;
}
.nav-dropdown-item:hover .nav-dropdown-title { color: var(--nav-teal-light); }

/* MOBILE DROPDOWN (inside full-screen menu) */
.mobile-dropdown {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}
.mobile-dropdown-trigger {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}
.mobile-caret { transition: transform 0.3s var(--nav-ease-out-expo); }
.mobile-dropdown-trigger[aria-expanded="true"] .mobile-caret { transform: rotate(180deg); }
.mobile-dropdown-menu {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s var(--nav-ease-out-expo);
    width: 100%;
}
.mobile-dropdown.open .mobile-dropdown-menu {
    max-height: 600px;
    padding-top: 1rem;
}
.mobile-dropdown-menu a {
    font-family: var(--nav-font-body);
    font-size: clamp(1rem, 3vw, 1.25rem);
    font-weight: 500;
    color: rgba(255,255,255,0.7);
    text-transform: none;
    text-decoration: none;
}
.mobile-dropdown-menu a:hover { color: var(--nav-teal-light); }

/* Focus ring */
.nav a:focus-visible,
.nav button:focus-visible,
.mobile-menu a:focus-visible,
.mobile-menu button:focus-visible {
    outline: 2px solid var(--nav-teal-light);
    outline-offset: 3px;
    border-radius: 2px;
}

@media (prefers-reduced-motion: reduce) {
    .nav, .nav-link::after, .nav-dropdown-menu, .mobile-dropdown-menu,
    .nav-caret, .mobile-caret, .nav-hamburger span { transition: none; }
}