/* ===== Shared floating island navigation =====
   Loaded by every page via <link rel="stylesheet" href="nav.css"> */

/* ===== Floating island nav (desktop) =====
   Transparent "dynamic island" pill floating at the top center.
   Desktop shows the inline menu; mobile collapses to logo + hamburger. */
.island-nav {
    position: fixed;
    top: max(12px, calc(env(safe-area-inset-top) + 10px));
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    width: max-content;
    max-width: calc(100vw - 24px);
}

.island {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.45rem 0.7rem;
    border-radius: 100px;
    background: rgba(255,255,255,0.09);
    border: 1px solid rgba(255,255,255,0.16);
    -webkit-backdrop-filter: blur(18px) saturate(160%);
    backdrop-filter: blur(18px) saturate(160%);
    box-shadow: 0 10px 34px rgba(0,0,0,0.22);
}

.island-logo {
    display: inline-flex;
    align-items: center;
    padding-right: 0.5rem;
    margin-right: 0.2rem;
    border-right: 1px solid rgba(255,255,255,0.18);
}

.island-logo img {
    display: block;
    height: 44px;
    width: auto;
    filter: drop-shadow(0 2px 6px rgba(0,0,0,0.5));
}

.island-menu {
    display: flex;
    align-items: center;
    gap: 0.1rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.island-menu a {
    position: relative;
    display: inline-block;
    padding: 0.55rem 0.7rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 1.6px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.92);
    text-decoration: none;
    border-radius: 100px;
    white-space: nowrap;
    transition: color 0.25s ease, background 0.25s ease;
}

.island-menu a::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0.28rem;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--gold);
    transform: translateX(-50%) scale(0);
    transition: transform 0.25s ease;
}

.island-menu a:hover,
.island-menu a:focus {
    color: #fff;
    background: rgba(255,255,255,0.12);
}

.island-menu a:hover::after,
.island-menu a:focus::after {
    transform: translateX(-50%) scale(1);
}

.island-menu a.active,
.island-menu a.active:hover {
    color: #fff;
    background: rgba(255,255,255,0.12);
}

.island-menu a.active::after {
    transform: translateX(-50%) scale(1);
}

/* Hamburger — hidden on desktop, shown on mobile */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    cursor: pointer;
    touch-action: manipulation;
}

.hamburger span {
    display: block;
    width: 17px;
    height: 2px;
    border-radius: 2px;
    background: #fff;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile overlay menu */
.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 99;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    background: rgba(10,25,18,0.85);
    -webkit-backdrop-filter: blur(24px) saturate(140%);
    backdrop-filter: blur(24px) saturate(140%);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.mobile-menu.open {
    opacity: 1;
    visibility: visible;
}

.mobile-menu a {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(1.55rem, 6.5vw, 2.1rem);
    color: rgba(255,255,255,0.94);
    text-decoration: none;
    padding: 0.35rem 1.5rem;
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.35s ease, transform 0.35s ease, color 0.25s ease;
}

.mobile-menu.open a {
    opacity: 1;
    transform: none;
}

.mobile-menu.open a:nth-child(1) { transition-delay: 0.04s; }
.mobile-menu.open a:nth-child(2) { transition-delay: 0.08s; }
.mobile-menu.open a:nth-child(3) { transition-delay: 0.12s; }
.mobile-menu.open a:nth-child(4) { transition-delay: 0.16s; }
.mobile-menu.open a:nth-child(5) { transition-delay: 0.2s; }
.mobile-menu.open a:nth-child(6) { transition-delay: 0.24s; }
.mobile-menu.open a:nth-child(7) { transition-delay: 0.28s; }
.mobile-menu.open a:nth-child(8) { transition-delay: 0.32s; }

.mobile-menu a:hover,
.mobile-menu a:focus {
    color: var(--gold);
}

/* Mobile — island collapses to logo + hamburger (top right) */
@media (max-width: 767px) {
    .island-nav {
        top: max(12px, calc(env(safe-area-inset-top) + 8px));
        left: auto;
        right: 14px;
        transform: none;
        width: auto;
    }

    .island {
        padding: 0.4rem 0.5rem;
        gap: 0.5rem;
    }

    .island-logo img {
        height: 36px;
    }

    .island-menu {
        display: none;
    }

    .hamburger {
        display: inline-flex;
    }
}