.toast-container {
    position: fixed; top: 28px; left: 50%; transform: translateX(-50%);
    z-index: 9999; display: flex; flex-direction: column; gap: 10px; pointer-events: none;
    max-width: 90vw;
}
.toast {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%); -webkit-backdrop-filter: blur(20px) saturate(180%);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    padding: 11px 22px;
    border-radius: 999px;
    font-size: 14px; font-weight: 600; letter-spacing: 0.1px;
    box-shadow: var(--shadow-mid), var(--overlay-hairline);
    animation: toastBounce 0.45s var(--ease-out-back) forwards;
    pointer-events: auto;
    white-space: nowrap;
    transition: opacity var(--duration-exit) var(--ease-in-expo), transform var(--duration-exit) var(--ease-in-expo);
}
/* Stagger: each subsequent toast enters a touch later for a soft stacking feel */
.toast:nth-child(2) { animation-delay: 40ms; }
.toast:nth-child(3) { animation-delay: 80ms; }
.toast:nth-child(4) { animation-delay: 120ms; }
.toast:nth-child(n+5) { animation-delay: 160ms; }


.custom-modal-overlay {
    position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
    background: var(--backdrop-modal);
    backdrop-filter: blur(10px) saturate(140%); -webkit-backdrop-filter: blur(10px) saturate(140%);
    display: flex; align-items: center; justify-content: center;
    z-index: 10000; opacity: 0; visibility: hidden;
    transition: opacity var(--duration-enter) var(--ease-out-expo), visibility var(--duration-enter);
}
.custom-modal {
    background: var(--glass-bg);
    backdrop-filter: blur(28px) saturate(180%); -webkit-backdrop-filter: blur(28px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 32px;
    min-width: 340px; max-width: 88vw; text-align: center;
    box-shadow: var(--shadow-strong), var(--overlay-hairline);
    transform: scale(0.94) translateY(12px);
    transition: transform var(--duration-enter) var(--ease-out-expo);
}
.custom-modal-overlay.active { opacity: 1; visibility: visible; }
.custom-modal-overlay.active .custom-modal {
    transform: scale(1) translateY(0);
    animation: modalEnter var(--duration-enter) var(--ease-out-expo) both;
}
@keyframes modalEnter {
    from { opacity: 0; transform: scale(0.94) translateY(12px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}
.custom-modal p {
    margin-bottom: 24px;
    font-size: 15px; font-weight: 500;
    color: var(--text-primary);
    line-height: 1.55;
    font-family: var(--font-body);
}
.custom-modal-actions { display: flex; gap: 12px; }
.custom-modal-actions button {
    flex: 1; padding: 12px 16px;
    border-radius: 999px;
    cursor: pointer;
    font-size: 14px; font-weight: 600;
    letter-spacing: 0.1px;
    transition: var(--transition-interactive);
}
.custom-modal-btn-cancel {
    background: var(--surface-1);
    border: 1px solid var(--border-mid);
    color: var(--text-primary);
    box-shadow: var(--shadow-soft);
}
.custom-modal-btn-cancel:hover { background: var(--surface-hover); border-color: var(--text-secondary); transform: translateY(-1px); box-shadow: var(--shadow-mid); }
.custom-modal-btn-confirm {
    background: var(--accent-color);
    border: 1px solid var(--accent-color);
    color: var(--accent-text);
    box-shadow: var(--shadow-soft);
}
.custom-modal-btn-confirm:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: var(--shadow-soft-accent); }
.custom-modal-actions button:active { transform: scale(0.96); transition-duration: var(--duration-press); }


.context-menu {
    display: none;
    position: fixed;
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-strong), var(--overlay-hairline);
    padding: 6px;
    z-index: 10001;
    min-width: 200px;
    transform-origin: top left;
}
.context-menu[style*="display: block"],
.context-menu[style*="display:block"] {
    animation: menuEnter var(--duration-enter) var(--ease-out-expo) both;
}
.context-menu[style*="display: block"],
.context-menu[style*="display:block"] {
    animation: menuEnter var(--duration-micro) var(--ease-out-expo) both;
}
.context-menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 9px 12px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-primary);
    border-radius: 7px;
    transition: background var(--duration-micro) var(--ease-standard), color var(--duration-micro) var(--ease-standard);
}
.context-menu-item:hover,
.context-menu-item:focus {
    background: var(--surface-hover);
    outline: none;
}
.context-menu-item:active { transform: scale(0.985); }
.context-menu-item svg {
    width: 17px;
    height: 17px;
    fill: var(--text-secondary);
    flex-shrink: 0;
    transition: fill var(--duration-micro) var(--ease-standard);
}
.context-menu-item:hover svg { fill: var(--text-primary); }
.context-menu-divider {
    height: 1px;
    background: var(--border-soft);
    margin: 4px 4px;
    border-radius: 1px;
}
.context-menu-item-sidebar-only { display: none; }
.context-menu.from-sidebar .context-menu-item-sidebar-only { display: flex; }


.think-block {
    background: var(--think-bg);
    border: 1px solid var(--think-border);
    border-radius: var(--radius-md);
    margin-bottom: 14px;
    overflow: hidden;
    transition: border-color var(--duration-micro) var(--ease-standard);
}
.think-block[open] {
    border-color: var(--border-mid);
    padding-bottom: 4px;
}
.think-summary {
    padding: 10px 14px;
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.1px;
    color: var(--think-summary);
    cursor: pointer;
    user-select: none;
    display: flex; align-items: center; gap: 8px;
    transition: background-color var(--duration-micro) var(--ease-standard), color var(--duration-micro) var(--ease-standard);
    border-radius: inherit;
}
.think-block[open] .think-summary { color: var(--text-secondary); }
.think-summary:hover { background: var(--accent-faint); }
.think-summary::-webkit-details-marker {
    display: none;
}
.think-summary::before {
    content: '▶';
    font-size: 9px;
    transition: transform var(--duration-micro) var(--ease-standard);
    color: var(--text-muted);
}
.think-block[open] .think-summary::before {
    transform: rotate(90deg);
}
.think-icon {
    fill: var(--text-secondary);
    color: var(--text-secondary);
    flex-shrink: 0;
}
.think-content {
    padding: 0 14px 12px;
    font-size: 13.5px;
    line-height: 1.65;
    color: var(--think-text);
    border-top: 1px solid var(--border-soft);
    padding-top: 12px;
    margin-top: 0;
}
.think-content p {
    margin-bottom: 0.5em;
}
.think-content p:last-child {
    margin-bottom: 0;
}

.ns-tag-summary {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 0.3px;
}

.update-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
    color: var(--accent-text);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    z-index: 9999;
    font-size: 14px;
    font-weight: 500;
    box-shadow: var(--shadow-mid);
    animation: slideDown 0.35s var(--ease-out-expo);
}

.update-refresh-btn {
    background: var(--accent-text);
    color: var(--accent-color);
    border: none;
    padding: 7px 18px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-interactive);
    box-shadow: 0 2px 8px rgba(0,0,0,0.18);
}

.update-refresh-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(0,0,0,0.22);
}

.update-refresh-btn:active { transform: translateY(0) scale(0.97); transition-duration: var(--duration-press); }

.update-dismiss-btn {
    background: transparent;
    color: var(--accent-text);
    border: none;
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    padding: 0 8px;
    opacity: 0.7;
    transition: opacity var(--duration-micro) var(--ease-standard), transform var(--duration-micro) var(--ease-standard);
}

.update-dismiss-btn:hover {
    opacity: 1;
    transform: scale(1.1);
}