/* ──────────────────────────────────────────────────────────────
   V2 Use Cases — styles for tabs + scenario cards + visualizations
────────────────────────────────────────────────────────────── */

/* ─── outer ─── */
.ucv2 { color: var(--hf-ink); font-family: var(--hf-font-body); }

.ucv2-eyebrow-row { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.ucv2-eyebrow {
  font-family: var(--hf-font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--hf-tg-deep);
  font-weight: 600;
}
.ucv2-eyebrow-line { flex: 1; height: 1px; background: var(--hf-line-2); }

.ucv2-h2 {
  margin: 0 0 28px;
  font-family: var(--hf-font-display);
  letter-spacing: -0.035em;
  font-weight: 800;
  line-height: 1.0;
}
.ucv2-desktop .ucv2-h2 { font-size: 48px; }
.ucv2-mobile  .ucv2-h2 { font-size: 28px; line-height: 1.05; letter-spacing: -0.03em; margin-bottom: 22px; }

/* ─── tabs (chips) ─── */
.ucv2-tabs {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-bottom: 32px;
}
.ucv2-mobile .ucv2-tabs { margin-bottom: 20px; gap: 6px; }

.ucv2-tab {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  background: transparent;
  border: 1px solid var(--hf-line-2);
  color: var(--hf-ink-2);
  font-family: var(--hf-font-body);
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.12s ease, color 0.12s ease, border-color 0.12s ease;
}
.ucv2-tab:hover { background: var(--hf-surface-2); color: var(--hf-ink); }
.ucv2-tab.active {
  background: var(--hf-ink);
  color: white;
  border-color: var(--hf-ink);
  box-shadow: 0 4px 12px -2px rgba(15,20,25,0.2);
}
.ucv2-mobile .ucv2-tab { padding: 7px 12px; font-size: 12.5px; gap: 6px; }
.ucv2-tab-new {
  background: var(--hf-tg);
  color: white;
  font-family: var(--hf-font-mono);
  font-weight: 700;
  font-size: 9px;
  padding: 2px 5px;
  border-radius: 3px;
  letter-spacing: 0.04em;
}

/* ─── content layout ─── */
.ucv2-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.ucv2-mobile .ucv2-content { grid-template-columns: 1fr; gap: 16px; }

.ucv2-content-left,
.ucv2-content-right {
  background: var(--hf-surface);
  border: 1px solid var(--hf-line);
  border-radius: 22px;
  padding: 36px;
  box-shadow: var(--hf-shadow-sm);
}
.ucv2-mobile .ucv2-content-left,
.ucv2-mobile .ucv2-content-right { padding: 22px; border-radius: 18px; }

.ucv2-content-tag {
  font-family: var(--hf-font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--hf-ink-3);
  font-weight: 600;
  display: block;
}
.ucv2-content-h {
  margin: 14px 0 16px;
  font-family: var(--hf-font-display);
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.1;
  color: var(--hf-ink);
}
.ucv2-mobile .ucv2-content-h { font-size: 22px; margin: 10px 0 12px; }

.ucv2-content-desc {
  font-size: 15.5px;
  line-height: 1.55;
  color: var(--hf-ink-2);
  margin: 0 0 22px;
}
.ucv2-mobile .ucv2-content-desc { font-size: 14px; line-height: 1.5; margin-bottom: 16px; }

.ucv2-bullets { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.ucv2-bullets li {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 14px 0;
  border-bottom: 1px solid var(--hf-line);
  font-size: 14.5px;
  color: var(--hf-ink-2);
}
.ucv2-bullets li:last-child { border-bottom: none; }
.ucv2-mobile .ucv2-bullets li { padding: 10px 0; font-size: 13.5px; }
.ucv2-check {
  width: 18px; height: 18px;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(31,143,61,0.12);
  border-radius: 999px;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ─── viz wrap ─── */
.ucv2-viz-wrap {
  margin-top: 14px;
}
.ucv2-viz-stack { display: flex; flex-direction: column; gap: 14px; }
.ucv2-viz-lead {
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--hf-ink-2);
  margin: 0 0 6px;
}
.ucv2-mobile .ucv2-viz-lead { font-size: 13px; }

/* ─── mini chat replays ─── */
.ucv2-chat-mini {
  background: var(--hf-surface-2);
  border-radius: 16px;
  padding: 16px;
  display: flex; flex-direction: column; gap: 8px;
}
.ucv2-mobile .ucv2-chat-mini { padding: 12px; gap: 6px; }
.ucv2-msg {
  max-width: 80%;
  padding: 9px 13px;
  border-radius: 14px;
  font-size: 13.5px;
  line-height: 1.4;
}
.ucv2-mobile .ucv2-msg { font-size: 12.5px; padding: 8px 11px; }
.ucv2-msg.client {
  align-self: flex-end;
  background: var(--hf-tg);
  color: white;
  border-bottom-right-radius: 4px;
}
.ucv2-msg.ai {
  align-self: flex-start;
  background: white;
  color: var(--hf-ink);
  border-bottom-left-radius: 4px;
  border: 1px solid var(--hf-line);
}
.ucv2-msg-meta {
  font-size: 10px;
  font-family: var(--hf-font-mono);
  color: var(--hf-ink-3);
  margin-top: 4px;
  text-align: right;
}
.ucv2-sys {
  align-self: center;
  display: inline-flex; gap: 6px; align-items: center;
  background: rgba(15,20,25,0.04);
  border: 1px dashed var(--hf-line-2);
  padding: 6px 12px;
  border-radius: 999px;
  font-family: var(--hf-font-mono);
  font-size: 11.5px;
  color: var(--hf-ink-2);
}
.ucv2-sys.ok {
  background: rgba(31,143,61,0.08);
  border-color: rgba(31,143,61,0.25);
  color: #1F8F3D;
}

/* ─── tool call line (vibe) ─── */
.ucv2-tool {
  align-self: flex-start;
  display: inline-flex; gap: 8px; align-items: center;
  background: rgba(31,143,201,0.07);
  border: 1px solid rgba(31,143,201,0.18);
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 12px;
  color: var(--hf-ink-2);
}
.ucv2-tool code {
  font-family: var(--hf-font-mono);
  font-size: 11.5px;
  background: rgba(0,0,0,0.06);
  padding: 1px 5px;
  border-radius: 4px;
  color: var(--hf-tg-deep);
}
.ucv2-tool-i {
  width: 18px; height: 18px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 12px;
}

/* ─── flow (school) ─── */
.ucv2-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 8px;
}
.ucv2-flow-step {
  background: var(--hf-surface-2);
  border-radius: 12px;
  padding: 12px 8px;
  text-align: center;
}
.ucv2-flow-icon { font-size: 20px; margin-bottom: 4px; }
.ucv2-flow-t { font-weight: 700; font-size: 12.5px; }
.ucv2-flow-s { font-size: 10.5px; color: var(--hf-ink-3); margin-top: 2px; }
.ucv2-flow-arr { color: var(--hf-ink-3); font-size: 14px; }
.ucv2-mobile .ucv2-flow { grid-template-columns: 1fr 1fr 1fr 1fr; gap: 6px; }
.ucv2-mobile .ucv2-flow-arr { display: none; }
.ucv2-mobile .ucv2-flow-step { padding: 10px 6px; }
.ucv2-mobile .ucv2-flow-t { font-size: 11px; }
.ucv2-mobile .ucv2-flow-s { font-size: 9.5px; }

/* ─── calendar (salon) ─── */
.ucv2-cal {
  background: white;
  border: 1px solid var(--hf-line);
  border-radius: 14px;
  padding: 16px;
}
.ucv2-cal-head { font-weight: 700; font-size: 14px; margin-bottom: 12px; }
.ucv2-cal-row { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; margin-bottom: 14px; }
.ucv2-cal-day {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 8px 4px;
  border-radius: 10px;
  background: var(--hf-surface-2);
  border: 1px solid transparent;
}
.ucv2-cal-day.sel { background: var(--hf-tg-soft); border-color: var(--hf-tg); }
.ucv2-cal-day .d { font-size: 10px; text-transform: uppercase; color: var(--hf-ink-3); font-family: var(--hf-font-mono); }
.ucv2-cal-day .dn { font-weight: 700; font-size: 14px; }
.ucv2-cal-day.sel .d { color: var(--hf-tg-deep); }
.ucv2-cal-slots { display: flex; gap: 6px; flex-wrap: wrap; }
.ucv2-cal-slot {
  padding: 6px 10px;
  border-radius: 8px;
  background: var(--hf-surface-2);
  font-size: 12px;
  font-family: var(--hf-font-mono);
  border: 1px solid var(--hf-line);
}
.ucv2-cal-slot.active { background: var(--hf-tg); color: white; border-color: var(--hf-tg); }
.ucv2-cal-slot.busy { opacity: 0.4; text-decoration: line-through; }

/* ─── products (shop) ─── */
.ucv2-products { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.ucv2-product {
  background: white;
  border-radius: 12px;
  padding: 10px;
  border: 1px solid var(--hf-line);
  text-align: center;
}
.ucv2-product-img {
  width: 100%; aspect-ratio: 1;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px;
  margin-bottom: 8px;
}
.ucv2-product-name { font-size: 12px; font-weight: 600; }
.ucv2-product-price { font-size: 13px; font-weight: 700; color: var(--hf-tg-deep); margin-top: 2px; font-family: var(--hf-font-mono); }
.ucv2-cart {
  margin-top: 4px;
  background: white;
  border-radius: 12px;
  padding: 12px;
  border: 1px solid var(--hf-line);
  display: flex; flex-direction: column; gap: 8px;
}
.ucv2-cart-row {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px; font-weight: 600;
}
.ucv2-cart-sum { color: var(--hf-tg-deep); font-family: var(--hf-font-mono); font-size: 16px; }

/* ─── file (digital) ─── */
.ucv2-file {
  align-self: stretch;
  display: flex; align-items: center; gap: 12px;
  background: white;
  border: 1px solid var(--hf-line);
  border-radius: 12px;
  padding: 12px;
}
.ucv2-file-ico { font-size: 24px; }
.ucv2-file-info { flex: 1; }
.ucv2-file-name { font-weight: 600; font-size: 13px; }
.ucv2-file-meta { font-size: 11px; color: var(--hf-ink-3); font-family: var(--hf-font-mono); margin-top: 2px; }
.ucv2-file-dl {
  width: 32px; height: 32px;
  border-radius: 999px;
  background: var(--hf-tg);
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  font-weight: 700;
}

/* ─── MCP flow (vibe) ─── */
.ucv2-mcp-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 8px;
  align-items: stretch;
}
.ucv2-mcp-node {
  background: var(--hf-surface-2);
  border-radius: 12px;
  padding: 14px;
  border: 1px solid var(--hf-line);
}
.ucv2-mcp-node.tg {
  background: linear-gradient(180deg, var(--hf-tg) 0%, var(--hf-tg-deep) 100%);
  color: white;
  border: none;
}
.ucv2-mcp-label {
  font-family: var(--hf-font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--hf-ink-3);
  margin-bottom: 6px;
  font-weight: 600;
}
.ucv2-mcp-node.tg .ucv2-mcp-label { color: rgba(255,255,255,0.7); }
.ucv2-mcp-q { font-size: 12.5px; font-weight: 600; line-height: 1.35; }
.ucv2-mcp-arr { align-self: center; color: var(--hf-ink-3); font-size: 18px; }
.ucv2-mobile .ucv2-mcp-flow { grid-template-columns: 1fr; gap: 4px; }
.ucv2-mobile .ucv2-mcp-arr { transform: rotate(90deg); align-self: center; padding: 2px 0; }

/* ─── Telegram folder (multi) ─── */
.ucv2-folder {
  background: #0f1419;
  border-radius: 18px;
  overflow: hidden;
  color: white;
}
.ucv2-folder-tabs {
  display: flex; gap: 8px;
  padding: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.ucv2-folder-tab {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 12.5px;
  font-weight: 600;
  color: rgba(255,255,255,0.6);
  cursor: pointer;
}
.ucv2-folder-tab.active { background: rgba(42,171,238,0.15); color: white; }
.ucv2-folder-tab-i { font-size: 13px; }
.ucv2-folder-tab-c {
  background: var(--hf-tg);
  color: white;
  border-radius: 999px;
  padding: 1px 7px;
  font-size: 10px;
  font-family: var(--hf-font-mono);
  font-weight: 700;
}
.ucv2-folder-tab-c.muted { background: rgba(255,255,255,0.15); }

.ucv2-folder-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: rgba(255,255,255,0.06);
}
.ucv2-mobile .ucv2-folder-grid { grid-template-columns: 1fr; }
.ucv2-folder-col { background: #0f1419; }

.ucv2-prj {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  position: relative;
}
.ucv2-prj.sel { background: rgba(42,171,238,0.08); }
.ucv2-prj-header {
  display: flex; align-items: center; gap: 12px;
  padding: 14px;
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.ucv2-prj-ava {
  width: 36px; height: 36px;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.ucv2-prj-ava.sm { width: 32px; height: 32px; font-size: 16px; }
.ucv2-prj-text { flex: 1; min-width: 0; }
.ucv2-prj-name { font-size: 13px; font-weight: 600; color: white; }
.ucv2-prj-meta { font-size: 11.5px; color: rgba(255,255,255,0.55); margin-top: 2px; }
.ucv2-prj-sum { font-size: 11.5px; font-family: var(--hf-font-mono); color: #4ade80; margin-top: 2px; }
.ucv2-prj-badge {
  background: var(--hf-tg);
  color: white;
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 10px;
  font-family: var(--hf-font-mono);
  font-weight: 700;
}
.ucv2-prj-badge.sm {
  background: rgba(74,222,128,0.18);
  color: #4ade80;
}

.ucv2-topic {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.ucv2-topic-name { font-size: 13px; font-weight: 600; color: white; }
.ucv2-topic-count {
  font-family: var(--hf-font-mono);
  background: rgba(42,171,238,0.18);
  color: #7dd3fc;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  margin-left: 4px;
}

.ucv2-folder-foot {
  padding: 10px 14px;
  font-size: 11.5px;
  font-family: var(--hf-font-mono);
  color: rgba(255,255,255,0.5);
  display: flex; gap: 8px; align-items: center;
  background: rgba(255,255,255,0.02);
  border-top: 1px solid rgba(255,255,255,0.05);
}
.ucv2-pulse-dot {
  width: 7px; height: 7px;
  border-radius: 999px;
  background: #4ade80;
  animation: ucv2-pulse 1.6s ease-in-out infinite;
}
@keyframes ucv2-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(74,222,128,0.55); }
  50%      { box-shadow: 0 0 0 5px rgba(74,222,128,0); }
}