/**
 * Projects Sidebar — Chat Page
 *
 * Styles for the Projects collapsible section that sits inside the
 * Recent Sessions area (after the search bar) in the sidebar.
 * Also styles the project icon that replaces the chat-bubble on session items.
 *
 * Selector scope: .projects-sidebar and .session-project-icon
 */

/* ── Section container ─────────────────────────────────────────── */

.projects-sidebar {
    padding: 0;
    flex-shrink: 0;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding-bottom: 5px;
    margin-bottom: 5px;
}

/* ── Section header (toggle row) ───────────────────────────────── */

.projects-sidebar__header {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 10px 7px 12px;
    cursor: pointer;
    user-select: none;
    border-radius: 6px;
    transition: background 0.15s ease;
}

.projects-sidebar__header:hover {
    background: var(--hover-bg, rgba(0, 0, 0, 0.05));
}

.projects-sidebar__title {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--text-secondary, #888);
    flex: 1;
    margin-left: 10px;
}

.projects-sidebar__title-icon {
    font-size: 15px;
    opacity: 0.75;
    padding-right: 6px;
}

.projects-sidebar__count {
    font-size: 11px;
    color: var(--text-tertiary, #aaa);
    font-weight: 400;
}

.projects-sidebar__chevron {
    font-size: 10px;
    color: var(--text-tertiary, #aaa);
    transition: transform 0.2s ease;
}

/* ── Project cards list ─────────────────────────────────────────── */

.projects-sidebar__list {
    overflow: hidden;
    max-height: 400px;
    transition: max-height 0.25s ease, opacity 0.2s ease;
    opacity: 1;
}

.projects-sidebar__list--collapsed {
    max-height: 0;
    opacity: 0;
}

/* ── Individual project card ────────────────────────────────────── */

.projects-sidebar__card {
    display: flex;
    flex-direction: column;
    padding: 6px 10px 6px 12px;
    margin: 1px 4px;
    border: 1px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
    position: relative;
}

.projects-sidebar__card:hover {
    background: var(--hover-bg, rgba(0, 0, 0, 0.05));
}

.projects-sidebar__card--active {
    background: var(--accent-light, rgba(99, 102, 241, 0.1));
    border-color: color-mix(in srgb, var(--accent-color, #6366f1) 40%, transparent);
    box-shadow: 0 10px 18px rgba(99, 102, 241, 0.12);
    transform: translateX(1px);
}

.projects-sidebar__card--active:hover {
    background: var(--accent-light-hover, rgba(99, 102, 241, 0.15));
}

/* Left accent bar for active project */
.projects-sidebar__card--active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 3px;
    background: var(--accent-color, #6366f1);
    border-radius: 0 2px 2px 0;
}

.projects-sidebar__card-top {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ── Project icon/badge (emoji or Unicode) ──────────────────────── */

.projects-sidebar__card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 6px;
    font-size: 14px;
    flex-shrink: 0;
    background: var(--icon-bg, rgba(0, 0, 0, 0.06));
    line-height: 1;
}

.projects-sidebar__card--active .projects-sidebar__card-icon {
    background: color-mix(in srgb, var(--accent-color, #6366f1) 14%, white);
    box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent-color, #6366f1) 25%, transparent);
}

/* ── Card text ─────────────────────────────────────────────────── */

.projects-sidebar__card-info {
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.projects-sidebar__card-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary, #222);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.projects-sidebar__card-count {
    font-size: 11px;
    font-weight: 400;
    color: var(--text-muted, #94a3b8);
}

.projects-sidebar__card-selected {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    margin-right: 2px;
    border-radius: 999px;
    color: var(--accent-color, #6366f1);
    background: color-mix(in srgb, var(--accent-color, #6366f1) 12%, transparent);
    opacity: 0;
    transform: scale(0.85);
    transition: opacity 0.15s ease, transform 0.15s ease;
    flex-shrink: 0;
    font-size: 11px;
}

.projects-sidebar__card--active .projects-sidebar__card-selected {
    opacity: 1;
    transform: scale(1);
}

.projects-sidebar__card-desc {
    font-size: 11px;
    color: var(--text-secondary, #888);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top: 1px;
}

/* ── "New chat" button on card hover ────────────────────────────── */

.projects-sidebar__new-chat-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 5px;
    border: none;
    background: transparent;
    color: var(--text-secondary, #888);
    cursor: pointer;
    opacity: 0;
    flex-shrink: 0;
    transition: opacity 0.15s ease, background 0.15s ease, color 0.15s ease;
    font-size: 11px;
    padding: 0;
}

.projects-sidebar__card:hover .projects-sidebar__new-chat-btn {
    opacity: 1;
}

.projects-sidebar__new-chat-btn:hover {
    background: var(--accent-light, rgba(99, 102, 241, 0.15));
    color: var(--accent-color, #6366f1);
}

/* ── Project icon replacing chat-bubble in session items ─────────── */

#sessionsList .session-project-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    line-height: 1;
    cursor: default;
}

/* ── Private session lock icon ───────────────────────────────────── */

#sessionsList .session-private-lock {
    display: inline-flex;
    align-items: center;
    margin-left: 0.3rem;
    color: var(--text-muted, #9ca3af);
    font-size: 0.7rem;
    opacity: 0.8;
    vertical-align: middle;
    cursor: default;
}

/* ── Shared session chip (owner attribution) ─────────────────────── */

#sessionsList .session-shared-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.2rem;
    margin-bottom: 0.15rem;
    padding: 0.05rem 0.35rem;
    border-radius: 3px;
    background: var(--accent-light, rgba(99, 102, 241, 0.1));
    color: var(--accent, #6366f1);
    font-size: 0.65rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    max-width: 10rem;
    text-overflow: ellipsis;
    cursor: default;
}

[data-theme="dark"] #sessionsList .session-private-lock {
    color: var(--text-muted, #6b7280);
}

[data-theme="dark"] #sessionsList .session-shared-chip {
    background: rgba(99, 102, 241, 0.15);
    color: #a5b4fc;
}

/* ── Session read-only hint (project_session_viewer) ─────────────── */

#sessionReadonlyHint.session-readonly-hint {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: var(--bg-subtle, #f8fafc);
    border: 1px solid var(--border-color, #e2e8f0);
    border-radius: 8px;
    font-size: 0.78rem;
    color: var(--text-muted, #64748b);
    margin-top: 4px;
}

#sessionReadonlyHint.session-readonly-hint i {
    font-size: 0.9rem;
    opacity: 0.7;
}

[data-theme="dark"] .session-readonly-hint {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.08);
    color: #94a3b8;
}

/* ── Dark mode overrides ─────────────────────────────────────────── */

[data-theme="dark"] .projects-sidebar__card-name {
    color: var(--text-primary, #e0e0e0);
}

[data-theme="dark"] .projects-sidebar__header:hover,
[data-theme="dark"] .projects-sidebar__card:hover {
    background: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .projects-sidebar__card--active {
    background: rgba(99, 102, 241, 0.15);
}

[data-theme="dark"] .projects-sidebar__card--active:hover {
    background: rgba(99, 102, 241, 0.2);
}

[data-theme="dark"] .projects-sidebar__card-icon {
    background: rgba(255, 255, 255, 0.08);
}