/* ===== SIDEBAR ===== */
.sidebar {
    width: 260px;
    min-width: 260px;
    background: var(--bg-secondary-light);
    border-inline-start: 1px solid var(--border-light);
    display: none;
    flex-direction: column;
    overflow: hidden;
    flex-shrink: 0;
}

.sidebar.open {
    display: flex;
}

.dark-mode .sidebar {
    background: var(--bg-secondary-dark);
    border-inline-start-color: var(--border-dark);
}

.sidebar-header {
    padding: 15px;
    border-bottom: 1px solid var(--border-light);
    font-weight: 700;
    font-size: 14px;
}

.dark-mode .sidebar-header {
    border-bottom-color: var(--border-dark);
}

.chat-history {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
}

.history-item {
    padding: 10px;
    background: var(--bg-light);
    border-radius: 6px;
    margin-bottom: 8px;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.3s ease;
    border-inline-start: 3px solid transparent;
    color: var(--text-secondary-light);
    word-break: break-word;
    max-height: 60px;
    overflow: hidden;
}

.dark-mode .history-item {
    background: var(--bg-secondary-dark);
    color: var(--text-secondary-dark);
}

.history-item:hover {
    background: var(--bg-light);
    border-inline-start-color: var(--primary);
    color: var(--text-light);
}

.dark-mode .history-item:hover {
    background: #3a3a3a;
}

/* ===== MENU ICON ONLY BUTTON ===== */
.menu-icon-only {
    padding: 8px 12px !important;
    min-width: unset !important;
}

.menu-icon-only .header-button-icon {
    font-size: 20px;
    margin: 0;
}

/* ===== SLIDING NAV SIDEBAR ===== */
.nav-sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 1200;
    backdrop-filter: blur(2px);
    animation: fadeIn 0.25s ease;
}

.nav-sidebar-overlay.open {
    display: block;
}

.nav-sidebar {
    position: fixed;
    top: 0;
    left: -300px;
    width: 270px;
    height: 100vh;
    background: #0d1117;
    z-index: 1300;
    display: flex;
    flex-direction: column;
    padding: 0;
    box-shadow: 6px 0 30px rgba(0, 0, 0, 0.4);
    transition: left 0.32s cubic-bezier(0.4, 0, 0.2, 1);
    border-right: 1px solid rgba(118, 214, 213, 0.12);
    overflow: hidden;
}

[dir="ltr"] .nav-sidebar {
    left: unset;
    right: -300px;
    border-right: none;
    border-left: 1px solid rgba(118, 214, 213, 0.12);
    box-shadow: -6px 0 30px rgba(0, 0, 0, 0.4);
    transition: right 0.32s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-sidebar.open {
    left: 0;
}

[dir="ltr"] .nav-sidebar.open {
    left: unset;
    right: 0;
}

.nav-sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 20px 18px;
    border-bottom: 1px solid rgba(118, 214, 213, 0.15);
    background: rgba(118, 214, 213, 0.05);
}

.nav-sidebar-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 0.5px;
}

.nav-sidebar-close {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    font-size: 18px;
    cursor: pointer;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    outline: none;
    transition: all 0.2s;
    font-family: inherit;
    flex-shrink: 0;
}

.nav-sidebar-close:hover {
    color: white;
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.25);
}

.nav-sidebar-close:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Nav items */
.nav-item {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
    padding: 16px 22px;
    background: none;
    border: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: rgba(222, 226, 243, 0.85);
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    text-align: right;
    transition: all 0.2s ease;
    position: relative;
}

[dir="ltr"] .nav-item {
    text-align: left;
}

.nav-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary);
    border-radius: 0 3px 3px 0;
    transform: scaleY(0);
    transition: transform 0.2s ease;
}

[dir="ltr"] .nav-item::before {
    left: unset;
    right: 0;
    border-radius: 3px 0 0 3px;
}

.nav-item:hover {
    background: rgba(118, 214, 213, 0.08);
    color: #fff;
    padding-left: 28px;
}

[dir="ltr"] .nav-item:hover {
    padding-left: 22px;
    padding-right: 28px;
}

.nav-item:hover::before {
    transform: scaleY(1);
}

.nav-item-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

iconify-icon.tut-icon,
iconify-icon.nav-item-icon,
iconify-icon.header-button-icon,
iconify-icon.inline-icon {
    display: inline-flex;
    vertical-align: middle;
    color: currentColor;
}

iconify-icon.nav-item-icon {
    width: 1.25em;
    height: 1.25em;
}

iconify-icon.header-button-icon {
    width: 1.35em;
    height: 1.35em;
}

.nav-sidebar-close-icon {
    width: 1.35em;
    align-items: center;
    justify-content: center;
    align-self: center;
    display: flex;
    height: 1.35em;
    color: currentColor;
}

.search-summary-card__header {
    display: flex;
    align-items: center;
    gap: 8px;
}

iconify-icon.search-summary-card__header-icon,
iconify-icon.search-summary-row__iconify,
iconify-icon.hosp-loading-card__iconify,
iconify-icon.hosp-loading-criterion__iconify {
    width: 1.2em;
    height: 1.2em;
    color: var(--primary);
}

.dark-mode iconify-icon.search-summary-card__header-icon,
.dark-mode iconify-icon.search-summary-row__iconify,
.dark-mode iconify-icon.hosp-loading-card__iconify,
.dark-mode iconify-icon.hosp-loading-criterion__iconify {
    color: var(--secondary);
}

.search-summary-card__cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

iconify-icon.cat-list-item__iconify {
    width: 1.35em;
    height: 1.35em;
    color: var(--primary);
}

iconify-icon.cat-list-item__arrow-icon {
    width: 1em;
    height: 1em;
    opacity: 0.55;
}

.cat-list-item__icon,
.date-range-widget__row-icon,
.file-upload-zone__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

iconify-icon.date-range-widget__row-iconify,
iconify-icon.date-field__iconify {
    width: 1.25em;
    height: 1.25em;
}

iconify-icon.date-range-widget__sep-iconify {
    width: 1em;
    height: 1em;
    color: var(--primary);
}

.login-notice {
    display: flex;
    align-items: center;
    gap: 8px;
}

.file-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.history-item__delete {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* ── History Sidebar ───────────────────────────────────────── */

.history-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    padding: 8px 12px;
    border-radius: 8px;
    transition: background .15s;
}
.history-item:hover { background: rgba(0,191,255,.06); }
.history-item--active { background: rgba(0,191,255,.10); }
.history-item__text { flex: 1; overflow: hidden; cursor: pointer; }
.history-item__date { font-size: 10px; color: var(--text-secondary-light); margin-bottom: 1px; }
.dark-mode .history-item__date { color: var(--text-secondary-dark); }
.history-item__preview { font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.history-item__delete {
    background: none; border: none; cursor: pointer;
    font-size: 14px; padding: 2px 4px; flex-shrink: 0; opacity: .5; transition: opacity .15s;
}
.history-item__delete:hover { opacity: 1; }

/* ── Sidebar header fix ────────────────────────────────────── */

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}