/* Refreshed chat sidebar. Loaded after chat, anonymous-chat, and AI slot styles. */

.chats-sidebar {
    --sidebar-ai-accent: #70b7cc;
    --sidebar-ai-accent-strong: #4d91aa;
    --sidebar-ai-border: #315565;
    --sidebar-ai-surface: #162029;
    --sidebar-ai-surface-active: #192832;
    width: clamp(240px, 70vw, 273px);
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
    background:
        radial-gradient(circle at 8% 0%, color-mix(in srgb, var(--accent-color) 7%, transparent), transparent 34%),
        linear-gradient(180deg, color-mix(in srgb, var(--surface) 96%, #111923), var(--surface));
    border-right: 1px solid color-mix(in srgb, var(--accent-color) 14%, var(--border));
    box-shadow: 18px 0 48px rgb(0 0 0 / 38%);
    contain: layout paint style;
    transition-duration: 210ms;
    will-change: auto;
}

.sidebar-overlay {
    display: block;
    visibility: hidden;
    pointer-events: none;
    background: rgb(4 6 12 / 74%);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    transition:
        opacity 180ms var(--ease),
        visibility 0s linear 180ms;
}

.sidebar-overlay.is-visible {
    visibility: visible;
    pointer-events: auto;
    opacity: 1;
    transition-delay: 0s;
}

.sidebar-header {
    min-height: 72px;
    padding: max(16px, env(safe-area-inset-top, 0px)) 18px 14px;
    background: color-mix(in srgb, var(--surface-2) 58%, transparent);
    border-bottom-color: color-mix(in srgb, var(--accent-color) 12%, var(--border));
}

.sidebar-title {
    gap: 10px;
    font-size: 18px;
    letter-spacing: -0.02em;
}

.sidebar-title-icon {
    display: block;
    width: 20px;
    height: 20px;
    flex: 0 0 20px;
    color: color-mix(in srgb, var(--accent-color) 76%, white);
}

.sidebar-close-btn {
    width: 32px;
    height: 32px;
    border: 0;
    border-radius: 10px;
    background: transparent;
    color: var(--text-3);
}

.sidebar-close-btn svg {
    display: block;
    width: 18px;
    height: 18px;
}

.sidebar-close-btn:hover {
    background: color-mix(in srgb, var(--accent-color) 9%, transparent);
    color: var(--text);
}

.sidebar-limit-bar {
    padding: 10px 18px;
    background: color-mix(in srgb, var(--surface-2) 36%, transparent);
    border-bottom-color: color-mix(in srgb, var(--border) 72%, transparent);
}

.sidebar-limit-text {
    color: var(--text-3);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.015em;
    text-align: left;
}

.sidebar-slots {
    gap: 9px;
    padding: 12px 16px max(22px, calc(env(safe-area-inset-bottom, 0px) + 16px));
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
    scrollbar-width: thin;
    scrollbar-color: color-mix(in srgb, var(--text-3) 34%, transparent) transparent;
}

.sidebar-slots::-webkit-scrollbar {
    width: 6px;
}

.sidebar-slots::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-slots::-webkit-scrollbar-thumb {
    border-radius: 999px;
    background: color-mix(in srgb, var(--text-3) 30%, transparent);
}

.sidebar-section-heading,
.ai-registry-status[data-surface="sidebar"].ai-registry-status--capacity {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 2px 10px;
    width: auto;
    margin: 13px 4px 1px;
    padding: 0 4px 7px;
    border: 0;
    border-bottom: 1px solid color-mix(in srgb, var(--border) 72%, transparent);
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

.sidebar-section-heading:first-child {
    margin-top: 2px;
}

.sidebar-section-heading__label,
.ai-registry-status__label {
    min-width: 0;
    color: var(--text-2);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.055em;
    text-transform: uppercase;
}

.sidebar-section-heading__count,
.ai-registry-status__usage {
    color: var(--text-2);
    font-size: 12px;
    font-variant-numeric: tabular-nums;
    font-weight: 800;
}

.sidebar-section-heading__detail,
.ai-registry-status[data-surface="sidebar"].ai-registry-status--capacity .ai-registry-status__text {
    grid-column: 1 / -1;
    color: var(--text-3);
    font-size: 11px;
    font-weight: 500;
    line-height: 1.35;
}

.ai-registry-status__heading {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 10px;
}

.slots-section-divider {
    height: 0;
    margin: 3px 0 0;
    background: transparent;
}

.pinned-slot {
    min-height: 66px;
    padding: 11px 12px;
    border: 1px solid color-mix(in srgb, var(--border) 72%, transparent);
    border-radius: 14px;
    background: color-mix(in srgb, var(--surface-2) 82%, transparent);
    box-shadow: 0 1px 0 rgb(255 255 255 / 2%) inset, 0 6px 20px rgb(0 0 0 / 8%);
    transition:
        background 160ms var(--ease),
        border-color 160ms var(--ease),
        transform 160ms var(--ease),
        box-shadow 160ms var(--ease);
}

.pinned-slot:hover {
    background: color-mix(in srgb, var(--surface-3) 78%, var(--surface-2));
    border-color: color-mix(in srgb, var(--text-3) 30%, var(--border));
    box-shadow: 0 8px 24px rgb(0 0 0 / 14%);
}

.pinned-slot.active-slot {
    background: color-mix(in srgb, var(--accent-color) 9%, var(--surface-2));
    border-color: color-mix(in srgb, var(--accent-color) 32%, var(--border));
    box-shadow: 0 7px 20px rgb(0 0 0 / 11%);
}

.tg-avatar-wrap {
    width: 44px;
    height: 44px;
}

.tg-slot-info {
    gap: 4px;
}

.tg-slot-name {
    font-size: 14px;
    line-height: 1.25;
}

.tg-slot-sub {
    color: color-mix(in srgb, var(--text-3) 88%, var(--text-2));
    font-size: 11.5px;
}

.tg-slot-badge {
    padding: 2px 6px;
    border-radius: 7px;
    font-size: 9px;
}

.tg-slot-badge.flirt {
    border: 1px solid rgb(232 93 117 / 26%);
    background: rgb(232 93 117 / 11%);
    color: #ef9aac;
}

.pinned-slot.ai-chat-slot[data-chat-kind="ai"] {
    background: linear-gradient(
        145deg,
        color-mix(in srgb, var(--sidebar-ai-surface-active) 72%, var(--surface-2)),
        color-mix(in srgb, var(--sidebar-ai-surface) 54%, var(--surface-2))
    );
    border-color: color-mix(in srgb, var(--sidebar-ai-border) 50%, var(--border));
}

.pinned-slot.ai-chat-slot[data-chat-kind="ai"]:hover {
    background: linear-gradient(
        145deg,
        color-mix(in srgb, var(--sidebar-ai-surface-active) 86%, var(--surface-2)),
        color-mix(in srgb, var(--sidebar-ai-surface) 68%, var(--surface-2))
    );
    border-color: color-mix(in srgb, var(--sidebar-ai-accent-strong) 62%, var(--border));
}

.pinned-slot.ai-chat-slot[data-chat-kind="ai"].active-ai-slot {
    border-color: color-mix(in srgb, var(--sidebar-ai-accent-strong) 64%, var(--border));
    box-shadow: 0 7px 20px rgb(0 0 0 / 13%);
}

.pinned-slot.ai-chat-slot[data-chat-kind="ai"] .tg-avatar-wrap {
    border: 1px solid color-mix(in srgb, var(--sidebar-ai-accent) 44%, transparent);
    background: color-mix(in srgb, var(--sidebar-ai-accent) 11%, var(--sidebar-ai-surface));
    color: var(--sidebar-ai-accent);
}

.pinned-slot.ai-chat-slot[data-chat-kind="ai"] .tg-slot-badge.ai {
    border-color: color-mix(in srgb, var(--sidebar-ai-accent) 32%, transparent);
    background: color-mix(in srgb, var(--sidebar-ai-accent) 12%, transparent);
    color: color-mix(in srgb, var(--sidebar-ai-accent) 86%, white);
}

.pinned-slot.ai-chat-slot[data-chat-kind="ai"] .current-slot-badge {
    background: var(--sidebar-ai-accent);
    box-shadow: 0 0 5px color-mix(in srgb, var(--sidebar-ai-accent) 72%, transparent);
}

.pinned-slot.ai-chat-slot[data-chat-kind="ai"].empty-ai-chat {
    border: 1px dashed color-mix(in srgb, var(--sidebar-ai-accent) 28%, var(--border));
    background: color-mix(in srgb, var(--sidebar-ai-surface) 24%, transparent);
    opacity: 0.78;
}

.pinned-slot.empty-slot {
    min-height: 58px;
    background: color-mix(in srgb, var(--surface-2) 40%, transparent);
    border: 1px dashed color-mix(in srgb, var(--text-3) 22%, var(--border));
    cursor: default;
}

.pinned-slot.empty-slot:hover {
    transform: none;
    box-shadow: none;
}

.pinned-slot.locked-slot,
.pinned-slot.future-slot,
.pinned-slot.tg-locked-slot {
    opacity: 0.64;
}

.ai-registry-status[data-surface="sidebar"]:not(.ai-registry-status--capacity) {
    margin: 2px 0 4px;
    padding: 10px 12px;
    border-radius: 12px;
    background: color-mix(in srgb, var(--surface-2) 86%, transparent);
}

.chats-sidebar :is(button, [role="button"], .pinned-slot):focus-visible {
    outline: 2px solid color-mix(in srgb, var(--accent-color) 70%, white);
    outline-offset: 2px;
}

body.light .chats-sidebar {
    --sidebar-ai-accent: #3f8299;
    --sidebar-ai-accent-strong: #2f7188;
    --sidebar-ai-border: #8eb9c6;
    --sidebar-ai-surface: #edf5f7;
    --sidebar-ai-surface-active: #e4f0f3;
    background:
        radial-gradient(circle at 8% 0%, color-mix(in srgb, var(--accent-color) 6%, transparent), transparent 34%),
        linear-gradient(180deg, color-mix(in srgb, var(--surface) 96%, #eef3f8), var(--surface));
    box-shadow: 18px 0 44px rgb(15 23 42 / 18%);
}

body.light .pinned-slot {
    background: color-mix(in srgb, var(--surface-2) 92%, white);
    border-color: color-mix(in srgb, var(--border) 92%, transparent);
    box-shadow: 0 6px 18px rgb(15 23 42 / 5%);
}

body.light .pinned-slot.ai-chat-slot[data-chat-kind="ai"],
body.light .pinned-slot.ai-chat-slot[data-chat-kind="ai"]:hover {
    background: linear-gradient(145deg, var(--sidebar-ai-surface-active), var(--sidebar-ai-surface));
}

@media (max-width: 480px) {
    .sidebar-header {
        padding-inline: 16px;
    }

    .sidebar-slots {
        padding-inline: 14px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .chats-sidebar,
    .sidebar-overlay,
    .pinned-slot {
        transition-duration: 1ms;
    }

    .pinned-slot.ai-chat-slot[data-chat-kind="ai"] .current-slot-badge {
        animation: none;
    }
}