/* ClassManager shell chrome for Syllabus Companion */

:root {
    --app-gutter: clamp(var(--space-4), 2vw, var(--space-6));
}

.companion-app {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    padding: var(--app-gutter);
    box-sizing: border-box;
}

.companion-subtitle {
    margin: 0;
    padding: 0 var(--space-3) var(--space-2);
    font-size: var(--text-body-sm);
    color: var(--text-secondary);
    line-height: 1.35;
}

.app-top-bar--companion {
    margin: calc(-1 * var(--app-gutter)) calc(-1 * var(--app-gutter)) var(--space-4);
}

.app-top-bar-row--primary {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border-bottom: 1px solid var(--border-color);
}

.app-top-bar-row--primary .companion-subtitle {
    flex: 1 1 100%;
    padding-left: calc(24px + var(--space-2));
    padding-bottom: 0;
}

.app-brand {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 700;
    font-size: var(--text-body-lg);
    color: var(--text-primary);
    white-space: nowrap;
}

.app-brand-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: var(--radius-md);
    background: var(--brand-accent);
    color: var(--brand-accent-dark);
    font-size: 14px;
    line-height: 1;
}

.app-header-unified__tools {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-1);
    margin-left: auto;
}

.app-header-unified__tools .btn {
    border-color: var(--border-color);
}

.app-header-unified__tools .btn-header-lang.is-active {
    background: var(--accent-muted);
    border-color: var(--brand-accent);
    color: var(--primary-dark);
}

.companion-header-pinned {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    gap: var(--space-1);
    flex-shrink: 0;
    margin-left: var(--space-1);
}

.app-top-bar.app-top-bar--companion:has(.companion-help-menu.is-open),
.app-top-bar.app-top-bar--companion:has(.companion-help-menu.is-open) .app-top-bar-row--primary,
.app-top-bar.app-top-bar--companion:has(.companion-help-menu.is-open) .app-header-unified__tools {
    overflow: visible;
    overflow-x: visible;
}

.btn.btn-small {
    min-height: 32px;
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-body-sm);
}

.app-top-bar-row--nav {
    padding: 0 var(--space-2);
}

.app-zone-segment-nav {
    display: flex;
    align-items: flex-end;
    gap: 0;
    min-width: 0;
    flex: 1 1 auto;
    overflow-x: auto;
    background: transparent;
}

.app-top-bar-row--nav .app-zone-segment-panel {
    display: flex;
    flex-wrap: nowrap;
    align-items: flex-end;
    gap: 0;
    margin: 0;
    padding: var(--space-2) var(--space-2) 0;
    border-bottom: 1px solid var(--border-color);
    min-width: 0;
    width: 100%;
    background: transparent;
    box-shadow: none;
}

.app-zone-segment-btn {
    position: relative;
    z-index: var(--z-base);
    padding: 7px 14px;
    font-family: var(--font-main);
    font-size: var(--text-body-md);
    font-weight: 600;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    border: 1px solid var(--border-color);
    border-bottom: none;
    margin: 0 2px -1px 0;
    color: var(--text-secondary);
    background: linear-gradient(180deg, var(--surface-elevated), var(--bg-hover));
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.55);
    cursor: grab;
    white-space: nowrap;
    user-select: none;
    touch-action: none;
}

.app-zone-segment-btn:active {
    cursor: grabbing;
}

.app-zone-segment-btn.is-dragging {
    opacity: 0.55;
    cursor: grabbing;
}

.app-zone-segment-btn.is-drag-over {
    z-index: calc(var(--z-above-base) + 1);
    box-shadow: inset 0 0 0 2px var(--shell-zone-active-top);
}

.app-zone-segment-btn:hover:not(.is-active) {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.app-zone-segment-btn.is-active,
.app-zone-segment-btn[aria-selected="true"] {
    z-index: var(--z-above-base);
    color: var(--text-primary);
    background: linear-gradient(180deg, var(--bg-card), var(--bg-hover));
    border-color: var(--border-color);
    border-top: 3px solid var(--shell-zone-active-top);
    box-shadow: 0 -3px 8px rgba(20, 30, 50, 0.1), inset 0 1px 0 #fff;
}

[data-theme="dark"] .app-zone-segment-btn {
    color: #9aa8bd;
    background: linear-gradient(180deg, #1e2b3e, #16202f);
    border-color: #2a374e;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .app-zone-segment-btn.is-active,
[data-theme="dark"] .app-zone-segment-btn[aria-selected="true"] {
    color: #eaf6f1;
    background: linear-gradient(180deg, #26354b, #172234);
    border-color: #3a4d6a;
    box-shadow: 0 -3px 8px rgba(0, 0, 0, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.team-sync-saved-indicator {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: var(--text-body-sm);
    color: var(--lock-badge-text, var(--primary-dark));
    white-space: nowrap;
    min-height: 1.2em;
}

.team-sync-saved-indicator.is-error {
    color: var(--danger);
}

.team-sync-saved-indicator__dot {
    width: 7px;
    height: 7px;
    border-radius: var(--radius-full);
    background: var(--brand-accent);
    flex-shrink: 0;
}

.team-sync-saved-indicator.is-error .team-sync-saved-indicator__dot {
    background: var(--danger);
}

.companion-main {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
}

.companion-panel[hidden] {
    display: none !important;
}

@media (max-width: 768px) {
    .app-header-unified__tools {
        width: 100%;
        justify-content: flex-start;
    }

    .app-top-bar-row--primary .companion-subtitle {
        padding-left: var(--space-2);
    }
}