/* === SCROLL INDICATOR === */

.scroll-indicator {
    position: fixed;
    right: 32px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0;
    opacity: 0;
    animation: fadeIn 0.6s var(--ease-quart) 1.4s forwards;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

.scroll-section {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 0;
    cursor: pointer;
    text-decoration: none;
    min-height: 44px;
}

.scroll-section-label {
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 400;
    color: var(--text-3);
    letter-spacing: 2px;
    text-transform: uppercase;
    white-space: nowrap;
    max-width: 0;
    overflow: hidden;
    opacity: 0;
    transform: translateX(8px);
    transition: color 0.3s var(--ease-quart),
                opacity 0.25s var(--ease-quart),
                transform 0.25s var(--ease-quart),
                max-width 0.25s var(--ease-quart);
}

.scroll-section.active .scroll-section-label {
    color: var(--text-1);
    opacity: 1;
    transform: translateX(0);
    max-width: 80px;
}

.scroll-section:hover .scroll-section-label {
    color: var(--text-2);
    opacity: 1;
    transform: translateX(0);
    max-width: 80px;
}

.scroll-section-track {
    width: 36px;
    height: 2px;
    background: var(--line);
    transform: scaleX(0.556);
    transform-origin: right;
    transition: transform 0.4s var(--ease-expo),
                background 0.3s var(--ease-quart);
}

.scroll-section.active .scroll-section-track {
    transform: scaleX(1);
    background: var(--text-1);
}

.scroll-section:hover .scroll-section-track {
    transform: scaleX(0.778);
    background: var(--text-2);
}

.scroll-ticks {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
    padding: 4px 0;
}

.scroll-tick {
    display: block;
    width: 12px;
    height: 1px;
    background: var(--line);
    transform-origin: right;
    transform: scaleX(0.5);
    transition: transform 0.3s var(--ease-expo),
                background 0.3s var(--ease-quart);
}

/* --- Keyboard shortcut hint --- */

.kbd-hint {
    position: fixed;
    bottom: 16px;
    right: 16px;
    z-index: 100;
    font-family: var(--mono);
    font-size: 7px;
    color: var(--text-3);
    display: flex;
    align-items: center;
    gap: 3px;
    opacity: 1;
    transition: opacity 0.4s var(--ease-quart);
}

.kbd-hint kbd {
    font-family: var(--mono);
    font-size: 7px;
    padding: 1px 3px;
    border: 1px solid var(--line);
    color: var(--text-3);
}

.kbd-divider {
    color: var(--line);
    margin: 0 4px;
    font-size: 8px;
}

/* --- Responsive --- */

@media (max-width: 768px) {
    .scroll-indicator {
        display: none;
    }
    .kbd-hint {
        display: none;
    }
}