/* ===========================
   Navigation Dock
   =========================== */
.nav-dock {
    position: fixed;
    top: 50%;
    left: 32px;
    transform: translateY(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 6px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.28));
    backdrop-filter: blur(28px) saturate(1.6);
    -webkit-backdrop-filter: blur(28px) saturate(1.6);
    border: 1px solid rgba(255, 255, 255, 0.35);
    box-shadow:
        0 12px 40px rgba(0, 0, 0, 0.10),
        0 1px 0 rgba(255, 255, 255, 0.55) inset,
        0 0 0 1px rgba(0, 0, 0, 0.04) inset;
    border-radius: 28px;
}

.nav-dock::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    border-radius: inherit;
    background:
        radial-gradient(120% 80% at 20% 10%, rgba(255, 255, 255, 0.45), transparent 55%),
        radial-gradient(120% 80% at 80% 90%, rgba(255, 255, 255, 0.22), transparent 55%);
    opacity: 0.9;
}

.nav-dock::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    border-radius: inherit;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 128 128' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='128' height='128' filter='url(%23n)' opacity='0.18'/%3E%3C/svg%3E");
    background-size: 128px 128px;
    mix-blend-mode: soft-light;
    opacity: 0.25;
}

.nav-dock-inner {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

/* Active indicator ring */
.nav-indicator {
    position: absolute;
    width: 46px;
    height: 46px;
    background: rgba(0, 0, 0, 0.05);
    border: 1.5px solid rgba(0, 0, 0, 0.08);
    border-radius: 50%;
    transition: transform 0.5s cubic-bezier(0.32, 0.72, 0, 1);
    z-index: 0;
    top: 0;
    left: 0;
    pointer-events: none;
}

.nav-item {
    position: relative;
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 50%;
    z-index: 2;
    transition: transform 0.2s cubic-bezier(0.32, 0.72, 0, 1);
}

.nav-item:hover {
    transform: scale(1.08);
}

.nav-item:active {
    transform: scale(0.95);
}

.nav-item svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: rgba(0, 0, 0, 0.65);
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: stroke 0.3s ease;
}

.nav-item:hover svg,
.nav-item.active svg {
    stroke: rgba(0, 0, 0, 0.85);
}

/* Tooltip — to the right of icon */
.nav-tooltip {
    position: absolute;
    left: calc(100% + 14px);
    top: 50%;
    transform: translateY(-50%) translateX(-6px);
    padding: 5px 11px;
    background: #000000;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid #000000;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.01em;
    color: rgba(255, 255, 255, 0.95);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.25s cubic-bezier(0.32, 0.72, 0, 1);
}

.nav-tooltip::after {
    content: '';
    position: absolute;
    right: 100%;
    top: 50%;
    transform: translateY(-50%);
    border: 5px solid transparent;
    border-right-color: #000000;
}

.nav-item:hover .nav-tooltip,
.work-subnav-hover .nav-item[data-view="work"] .nav-tooltip {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}

/* Hide Work tooltip when on Work page */
body.mode-work .nav-item[data-view="work"] .nav-tooltip {
    opacity: 0;
}

/* ===========================
   Mobile: Horizontal top bar
   =========================== */
@media (max-width: 768px) {
    .nav-dock {
        top: max(12px, env(safe-area-inset-top));
        left: 50%;
        transform: translateX(-50%);
        flex-direction: row;
        align-items: center;
        justify-content: center;
        border-radius: 28px;
        padding: 6px;
    }

    .nav-dock-inner {
        flex-direction: row;
        gap: 6px;
    }

    .nav-indicator {
        top: 0;
        left: 0;
    }

    .nav-tooltip {
        left: 50%;
        top: calc(100% + 10px);
        right: auto;
        transform: translateX(-50%) translateY(-4px);
    }

    .nav-tooltip::after {
        right: auto;
        left: 50%;
        top: auto;
        bottom: 100%;
        transform: translateX(-50%);
        border: 5px solid transparent;
        border-bottom-color: #000000;
        border-right-color: transparent;
    }

    .nav-item:hover .nav-tooltip,
    .work-subnav-hover .nav-item[data-view="work"] .nav-tooltip {
        transform: translateX(-50%) translateY(0);
    }
}