/* ========================================
   sirona-tabstrip / sirona-tab
   ======================================== */

sirona-tabstrip {
    display: block;
    min-width: 0;
}

sirona-tab {
    display: block;
}

sirona-tab[hidden] {
    display: none;
}

.sirona-tabstrip__nav {
    display: flex;
    border-bottom: 1px solid rgba(24, 111, 181, 0.2);
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

.sirona-tabstrip__nav::-webkit-scrollbar {
    height: 6px;
}

.sirona-tabstrip__nav::-webkit-scrollbar-track {
    background: transparent;
}

.sirona-tabstrip__nav::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 4px;
}

.sirona-tabstrip__nav::-webkit-scrollbar-thumb:hover {
    background-color: var(--blueteq-blue);
}

.sirona-tabstrip__btn {
    display: flex;
    align-items: center;
    gap: 0.5em;
    padding: 0.75rem 1.5rem;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    margin-bottom: -1px;
    font-size: 0.94em;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
    white-space: nowrap;
    flex: 0 0 auto;
}

.sirona-tabstrip__btn:hover {
    color: var(--blueteq-blue);
    background-color: rgba(24, 111, 181, 0.05);
}

.sirona-tabstrip__btn--active {
    color: var(--blueteq-blue);
    font-weight: 600;
    border-bottom-color: var(--blueteq-blue);
}

/* ── Vertical (left) layout ─────────────────────── */

sirona-tabstrip[position="left"] {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
}

sirona-tabstrip[position="left"] .sirona-tabstrip__nav {
    flex-direction: column;
    border-bottom: none;
    border-right: 1px solid rgba(24, 111, 181, 0.2);
    min-width: 180px;
    max-height: 100%;
    overflow-x: hidden;
    overflow-y: auto;
}

sirona-tabstrip[position="left"] .sirona-tabstrip__nav::-webkit-scrollbar {
    width: 6px;
    height: auto;
}

sirona-tabstrip[position="left"] .sirona-tabstrip__btn {
    border-bottom: none;
    border-right: 3px solid transparent;
    margin-bottom: 0;
    margin-right: -1px;
    justify-content: flex-start;
}

sirona-tabstrip[position="left"] .sirona-tabstrip__btn--active {
    border-bottom-color: transparent;
    border-right-color: var(--blueteq-blue);
}

sirona-tabstrip[position="left"] > sirona-tab {
    flex: 1;
    min-width: 0;
}

/* ── Dark Mode ─────────────────────────────────── */

[data-theme="dark"] .sirona-tabstrip__btn {
    color: var(--text-secondary);
}

[data-theme="dark"] .sirona-tabstrip__btn:hover {
    color: var(--blueteq-blue);
    background-color: rgba(24, 111, 181, 0.1);
}

[data-theme="dark"] .sirona-tabstrip__btn--active {
    color: var(--blueteq-blue);
}

[data-theme="dark"] .sirona-tabstrip__nav {
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] sirona-tabstrip[position="left"] .sirona-tabstrip__nav {
    border-right-color: rgba(255, 255, 255, 0.1);
    border-bottom-color: transparent;
}

/* ── High Contrast ─────────────────────────────── */

[data-theme="high-contrast"] .sirona-tabstrip__nav {
    border-bottom: 2px solid #fff;
}

[data-theme="high-contrast"] .sirona-tabstrip__btn {
    color: #fff;
    border-bottom-color: transparent;
}

[data-theme="high-contrast"] .sirona-tabstrip__btn--active {
    color: #fff;
    border-bottom-color: #fff;
    background-color: #333;
}

[data-theme="high-contrast"] sirona-tabstrip[position="left"] .sirona-tabstrip__nav {
    border-right: 2px solid #fff;
    border-bottom: none;
}

[data-theme="high-contrast"] sirona-tabstrip[position="left"] .sirona-tabstrip__btn--active {
    border-bottom-color: transparent;
    border-right-color: #fff;
}