/* ================================================================
   BossFx Smart Page Navigator — Styles
   ================================================================ */

/* --- Container --- */
.bfx-pnav {
    position: fixed;
    top: 70px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
    transform: translateX(-50%) translateY(-8px);
    width: auto;
    max-width: calc(100vw - 32px);
}

.bfx-pnav--visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

/* --- Progress bar (thin line at top of toggle) --- */
.bfx-pnav-progress {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: rgba(255,255,255,0.06);
    border-radius: 20px 20px 0 0;
    overflow: hidden;
    z-index: 2;
}

.bfx-pnav-progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #10b981, #f59e0b);
    transition: width 0.15s ease-out;
    border-radius: 20px;
}

/* --- Toggle button --- */
.bfx-pnav-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(10, 15, 12, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(16, 185, 129, 0.15);
    border-radius: 14px;
    padding: 10px 16px;
    color: #f1f5f9;
    font-family: 'Inter', -apple-system, sans-serif;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
    box-shadow:
        0 4px 24px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(16, 185, 129, 0.08) inset;
    min-height: 44px;
}

.bfx-pnav-toggle:hover {
    border-color: rgba(16, 185, 129, 0.35);
    box-shadow:
        0 4px 24px rgba(0, 0, 0, 0.5),
        0 0 20px rgba(16, 185, 129, 0.08);
}

.bfx-pnav-toggle:active {
    transform: scale(0.98);
}

.bfx-pnav-icon {
    flex-shrink: 0;
    color: #10b981;
}

.bfx-pnav-current {
    max-width: 160px;
    overflow: hidden;
    text-overflow: ellipsis;
    color: #94a3b8;
    font-weight: 500;
}

.bfx-pnav--visible .bfx-pnav-current {
    color: #f1f5f9;
}

.bfx-pnav-chev {
    flex-shrink: 0;
    color: #64748b;
    transition: transform 0.25s ease;
}

.bfx-pnav--open .bfx-pnav-chev {
    transform: rotate(180deg);
}

/* --- Dropdown --- */
.bfx-pnav-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%) translateY(-6px);
    min-width: 240px;
    max-width: 320px;
    width: max-content;
    background: rgba(10, 15, 12, 0.96);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(16, 185, 129, 0.12);
    border-radius: 16px;
    padding: 8px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    box-shadow:
        0 16px 48px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.03) inset;
    max-height: 60vh;
    overflow-y: auto;
    overscroll-behavior: contain;
}

.bfx-pnav--open .bfx-pnav-dropdown {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

/* Scrollbar */
.bfx-pnav-dropdown::-webkit-scrollbar {
    width: 4px;
}
.bfx-pnav-dropdown::-webkit-scrollbar-track {
    background: transparent;
}
.bfx-pnav-dropdown::-webkit-scrollbar-thumb {
    background: rgba(16, 185, 129, 0.2);
    border-radius: 10px;
}

/* --- Dropdown items --- */
.bfx-pnav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 10px;
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.15s ease;
    cursor: pointer;
    min-height: 42px;
}

.bfx-pnav-item:hover {
    background: rgba(16, 185, 129, 0.08);
    color: #f1f5f9;
}

.bfx-pnav-item--active {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
}

.bfx-pnav-item--active .bfx-pnav-dot {
    background: #10b981;
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.5);
}

/* --- Dot indicator --- */
.bfx-pnav-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #334155;
    flex-shrink: 0;
    transition: all 0.2s ease;
}

.bfx-pnav-item:hover .bfx-pnav-dot {
    background: #64748b;
}

.bfx-pnav-label {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ================================================================
   Responsive
   ================================================================ */

/* Mobile: bottom-anchored for thumb reach */
@media (max-width: 768px) {
    .bfx-pnav {
        top: auto;
        bottom: 80px; /* above mobile sticky CTA */
        left: 50%;
        transform: translateX(-50%) translateY(8px);
    }

    .bfx-pnav--visible {
        transform: translateX(-50%) translateY(0);
    }

    .bfx-pnav-toggle {
        padding: 10px 14px;
        font-size: 0.8rem;
        border-radius: 50px;
        box-shadow:
            0 4px 32px rgba(0, 0, 0, 0.6),
            0 0 0 1px rgba(16, 185, 129, 0.1) inset;
    }

    .bfx-pnav-dropdown {
        bottom: calc(100% + 8px);
        top: auto;
        left: 50%;
        transform: translateX(-50%) translateY(6px);
        max-height: 50vh;
        min-width: 220px;
    }

    .bfx-pnav--open .bfx-pnav-dropdown {
        transform: translateX(-50%) translateY(0);
    }

    .bfx-pnav-current {
        max-width: 120px;
    }
}

/* Very small screens */
@media (max-width: 380px) {
    .bfx-pnav-current {
        max-width: 90px;
    }
}

/* Hide when printing */
@media print {
    .bfx-pnav { display: none; }
}