/* ============================================================
   VibraRecommendation Engine — CSS
   PR #47 · VibraWorld Urban Intelligence
   ============================================================ */

:root {
  --rec-bg: #08051a;
  --rec-surface: rgba(255,255,255,.04);
  --rec-border: rgba(138,87,255,.2);
  --rec-accent: #8a57ff;
  --rec-teal: #00d4ff;
  --rec-green: #00e676;
  --rec-gold: #ffc400;
  --rec-pink: #f06292;
  --rec-text: rgba(240,235,255,.9);
  --rec-muted: rgba(240,235,255,.45);
}

/* ── Panel Shell ─────────────────────────────────────────── */
#vibra-rec-panel {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--rec-bg);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  font-family: 'DM Mono', monospace;
  animation: recFadeIn .25s ease;
}
@keyframes recFadeIn { from { opacity:0; transform:translateY(8px) } to { opacity:1; transform:none } }

.rec-topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(8,5,26,.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--rec-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .85rem 1rem;
}
.rec-topbar-title {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1rem;
  color: var(--rec-text);
}
.rec-topbar-title span { color: var(--rec-accent); }
.rec-topbar-badge {
  font-size: .55rem;
  background: rgba(138,87,255,.15);
  border: 1px solid rgba(138,87,255,.3);
  color: var(--rec-accent);
  padding: .15rem .5rem;
  border-radius: 20px;
  letter-spacing: .08em;
}
.rec-close-btn {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  color: var(--rec-muted);
  width: 32px; height: 32px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1rem;
  display: flex; align-items: center; justify-content: center;
  transition: all .2s;
}
.rec-close-btn:hover { background: rgba(255,255,255,.12); color: var(--rec-text); }

/* ── Tabs ─────────────────────────────────────────────────── */
.rec-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--rec-border);
  overflow-x: auto;
  scrollbar-width: none;
  padding: 0 1rem;
}
.rec-tabs::-webkit-scrollbar { display: none; }
.rec-tab {
  flex-shrink: 0;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--rec-muted);
  font-family: 'DM Mono', monospace;
  font-size: .6rem;
  letter-spacing: .08em;
  padding: .7rem .85rem;
  cursor: pointer;
  transition: all .2s;
}
.rec-tab.active { color: var(--rec-accent); border-bottom-color: var(--rec-accent); }
.rec-tab:hover:not(.active) { color: var(--rec-text); }

/* ── Tab Content ─────────────────────────────────────────── */
.rec-pane { display: none; padding: 1rem; }
.rec-pane.active { display: block; }

/* ── Model Overview ──────────────────────────────────────── */
.rec-model-header {
  background: linear-gradient(135deg, rgba(138,87,255,.12), rgba(0,212,255,.06));
  border: 1px solid var(--rec-border);
  border-radius: 14px;
  padding: 1.25rem;
  margin-bottom: 1rem;
  text-align: center;
}
.rec-model-name {
  font-family: 'Syne', sans-serif;
  font-weight: 900;
  font-size: 1.4rem;
  color: var(--rec-text);
  letter-spacing: .04em;
}
.rec-model-name span { color: var(--rec-accent); }
.rec-model-ver {
  font-size: .55rem;
  color: var(--rec-muted);
  margin-top: .25rem;
  letter-spacing: .1em;
}
.rec-model-kpis {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .75rem;
  margin-top: 1rem;
}
.rec-kpi {
  background: var(--rec-surface);
  border: 1px solid var(--rec-border);
  border-radius: 10px;
  padding: .75rem .5rem;
  text-align: center;
}
.rec-kpi-val {
  font-family: 'Syne', sans-serif;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--rec-accent);
}
.rec-kpi-label {
  font-size: .5rem;
  color: var(--rec-muted);
  letter-spacing: .08em;
  margin-top: .2rem;
}

/* ── Weights Visualizer ──────────────────────────────────── */
.rec-section-title {
  font-size: .6rem;
  font-weight: 700;
  color: var(--rec-muted);
  letter-spacing: .12em;
  text-transform: uppercase;
  margin: 1.25rem 0 .75rem;
}
.rec-weights { display: flex; flex-direction: column; gap: .65rem; }
.rec-weight-row {
  display: flex;
  align-items: center;
  gap: .75rem;
}
.rec-weight-label {
  flex-shrink: 0;
  width: 105px;
  font-size: .58rem;
  color: var(--rec-text);
}
.rec-weight-bar-wrap {
  flex: 1;
  background: rgba(255,255,255,.06);
  border-radius: 4px;
  height: 6px;
  overflow: hidden;
}
.rec-weight-bar {
  height: 100%;
  border-radius: 4px;
  transition: width .6s cubic-bezier(.2,0,.1,1);
}
.rec-weight-pct {
  flex-shrink: 0;
  width: 32px;
  text-align: right;
  font-size: .58rem;
  color: var(--rec-muted);
}

/* ── Pipeline Flow ───────────────────────────────────────── */
.rec-pipeline {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  margin: 1rem 0;
}
.rec-pipe-step {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  background: var(--rec-surface);
  border: 1px solid rgba(255,255,255,.07);
  border-radius: 10px;
  padding: .75rem;
}
.rec-pipe-num {
  flex-shrink: 0;
  width: 24px; height: 24px;
  background: rgba(138,87,255,.15);
  border: 1px solid rgba(138,87,255,.3);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: .6rem;
  font-weight: 700;
  color: var(--rec-accent);
}
.rec-pipe-info {}
.rec-pipe-title { font-size: .65rem; color: var(--rec-text); font-weight: 600; }
.rec-pipe-desc { font-size: .55rem; color: var(--rec-muted); margin-top: .2rem; line-height: 1.5; }

/* ── User Profile Model ──────────────────────────────────── */
.rec-user-card {
  background: linear-gradient(135deg, rgba(138,87,255,.1), rgba(0,212,255,.05));
  border: 1px solid var(--rec-border);
  border-radius: 14px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}
.rec-user-header {
  display: flex;
  align-items: center;
  gap: .85rem;
  margin-bottom: 1rem;
}
.rec-user-avatar {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--rec-accent), var(--rec-teal));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
}
.rec-user-meta {}
.rec-user-name { font-size: .8rem; font-weight: 700; color: var(--rec-text); }
.rec-user-sub { font-size: .55rem; color: var(--rec-muted); margin-top: .2rem; }
.rec-user-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .5rem;
}
.rec-feature {
  background: rgba(255,255,255,.04);
  border-radius: 8px;
  padding: .5rem .65rem;
}
.rec-feature-label { font-size: .5rem; color: var(--rec-muted); letter-spacing: .08em; }
.rec-feature-val { font-size: .65rem; color: var(--rec-text); margin-top: .15rem; }

/* ── Recommended Posts Preview ───────────────────────────── */
.rec-feed-preview { display: flex; flex-direction: column; gap: .75rem; }
.rec-post-card {
  background: var(--rec-surface);
  border: 1px solid rgba(255,255,255,.07);
  border-radius: 12px;
  padding: .9rem;
  position: relative;
  overflow: hidden;
}
.rec-post-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  border-radius: 3px 0 0 3px;
}
.rec-post-card.score-high::before { background: var(--rec-green); }
.rec-post-card.score-mid::before { background: var(--rec-gold); }
.rec-post-card.score-low::before { background: var(--rec-pink); }

.rec-post-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: .5rem;
}
.rec-post-author {
  display: flex;
  align-items: center;
  gap: .5rem;
}
.rec-post-avatar {
  width: 28px; height: 28px;
  background: linear-gradient(135deg, var(--rec-accent), var(--rec-teal));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: .75rem;
}
.rec-post-author-name { font-size: .6rem; color: var(--rec-text); }
.rec-post-author-zone { font-size: .5rem; color: var(--rec-muted); }
.rec-post-score-badge {
  background: rgba(138,87,255,.15);
  border: 1px solid rgba(138,87,255,.25);
  border-radius: 20px;
  padding: .2rem .55rem;
  font-size: .55rem;
  color: var(--rec-accent);
  font-weight: 700;
}
.rec-post-text {
  font-size: .65rem;
  color: var(--rec-text);
  line-height: 1.55;
  margin-bottom: .65rem;
}
.rec-why-chips {
  display: flex;
  flex-wrap: wrap;
  gap: .3rem;
}
.rec-why-chip {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 20px;
  padding: .2rem .5rem;
  font-size: .48rem;
  color: var(--rec-muted);
  letter-spacing: .06em;
}
.rec-why-chip.geo { border-color: rgba(0,212,255,.3); color: var(--rec-teal); }
.rec-why-chip.tribe { border-color: rgba(138,87,255,.3); color: var(--rec-accent); }
.rec-why-chip.zone { border-color: rgba(0,230,118,.3); color: var(--rec-green); }
.rec-why-chip.trust { border-color: rgba(255,196,0,.3); color: var(--rec-gold); }
.rec-why-chip.time { border-color: rgba(240,98,146,.3); color: var(--rec-pink); }

/* ── Score Breakdown ──────────────────────────────────────── */
.rec-score-breakdown {
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.07);
  border-radius: 10px;
  padding: .75rem;
  margin-top: .65rem;
}
.rec-score-breakdown-title {
  font-size: .52rem;
  color: var(--rec-muted);
  letter-spacing: .1em;
  margin-bottom: .5rem;
}
.rec-score-rows { display: flex; flex-direction: column; gap: .35rem; }
.rec-score-row {
  display: flex;
  align-items: center;
  gap: .5rem;
}
.rec-score-row-label { flex: 1; font-size: .55rem; color: var(--rec-muted); }
.rec-score-row-bar-wrap {
  width: 80px;
  background: rgba(255,255,255,.06);
  border-radius: 3px;
  height: 4px;
  overflow: hidden;
}
.rec-score-row-bar { height: 100%; border-radius: 3px; }
.rec-score-row-val { font-size: .55rem; color: var(--rec-text); width: 28px; text-align: right; }

/* ── Signals Feed ────────────────────────────────────────── */
.rec-signals-list {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  max-height: 400px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(138,87,255,.3) transparent;
}
.rec-signal-row {
  display: flex;
  align-items: center;
  gap: .65rem;
  background: var(--rec-surface);
  border-radius: 8px;
  padding: .55rem .75rem;
  animation: recSignalIn .3s ease;
}
@keyframes recSignalIn { from { opacity:0; transform:translateX(-8px) } to { opacity:1; transform:none } }
.rec-signal-type {
  flex-shrink: 0;
  font-size: .75rem;
}
.rec-signal-info { flex: 1; }
.rec-signal-label { font-size: .58rem; color: var(--rec-text); }
.rec-signal-meta { font-size: .5rem; color: var(--rec-muted); margin-top: .1rem; }
.rec-signal-weight {
  flex-shrink: 0;
  font-size: .6rem;
  font-weight: 700;
}
.rec-signal-weight.pos { color: var(--rec-green); }
.rec-signal-weight.neg { color: var(--rec-pink); }

/* ── A/B Testing ─────────────────────────────────────────── */
.rec-ab-card {
  background: var(--rec-surface);
  border: 1px solid var(--rec-border);
  border-radius: 12px;
  padding: 1rem;
  margin-bottom: .75rem;
}
.rec-ab-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: .75rem;
}
.rec-ab-title { font-size: .68rem; font-weight: 700; color: var(--rec-text); }
.rec-ab-status {
  font-size: .5rem;
  padding: .2rem .5rem;
  border-radius: 20px;
  font-weight: 600;
  letter-spacing: .08em;
}
.rec-ab-status.running { background: rgba(0,230,118,.15); color: var(--rec-green); border: 1px solid rgba(0,230,118,.3); }
.rec-ab-status.paused  { background: rgba(255,196,0,.15);  color: var(--rec-gold);  border: 1px solid rgba(255,196,0,.3); }

.rec-ab-variants { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.rec-ab-variant {
  background: rgba(255,255,255,.03);
  border-radius: 8px;
  padding: .65rem;
  border: 1px solid rgba(255,255,255,.07);
}
.rec-ab-variant-name { font-size: .55rem; font-weight: 700; color: var(--rec-muted); letter-spacing: .1em; }
.rec-ab-variant-val { font-size: 1.1rem; font-weight: 800; font-family: 'Syne', sans-serif; margin-top: .25rem; }
.rec-ab-variant.winner .rec-ab-variant-val { color: var(--rec-green); }
.rec-ab-variant.loser  .rec-ab-variant-val { color: var(--rec-muted); }
.rec-ab-variant-sub { font-size: .5rem; color: var(--rec-muted); }
.rec-ab-progress {
  margin-top: .75rem;
  background: rgba(255,255,255,.06);
  border-radius: 4px;
  height: 4px;
  overflow: hidden;
}
.rec-ab-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--rec-accent), var(--rec-teal));
  border-radius: 4px;
  transition: width .8s ease;
}

/* ── Cold Start ──────────────────────────────────────────── */
.rec-cold-start {
  background: linear-gradient(135deg, rgba(255,196,0,.08), rgba(240,98,146,.05));
  border: 1px solid rgba(255,196,0,.2);
  border-radius: 12px;
  padding: 1.1rem;
  margin-bottom: 1rem;
}
.rec-cold-header { display: flex; align-items: center; gap: .6rem; margin-bottom: .65rem; }
.rec-cold-icon { font-size: 1.3rem; }
.rec-cold-title { font-size: .7rem; font-weight: 700; color: var(--rec-gold); }
.rec-cold-desc { font-size: .58rem; color: var(--rec-muted); line-height: 1.5; margin-bottom: .85rem; }
.rec-cold-phases { display: flex; flex-direction: column; gap: .4rem; }
.rec-cold-phase {
  display: flex;
  align-items: center;
  gap: .65rem;
  padding: .5rem .65rem;
  background: rgba(255,255,255,.04);
  border-radius: 8px;
}
.rec-cold-phase-num {
  width: 20px; height: 20px;
  flex-shrink: 0;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: .55rem;
  font-weight: 700;
}
.rec-cold-phase.done .rec-cold-phase-num { background: rgba(0,230,118,.2); color: var(--rec-green); border: 1px solid rgba(0,230,118,.3); }
.rec-cold-phase.active .rec-cold-phase-num { background: rgba(255,196,0,.2); color: var(--rec-gold); border: 1px solid rgba(255,196,0,.3); }
.rec-cold-phase.pending .rec-cold-phase-num { background: rgba(255,255,255,.06); color: var(--rec-muted); border: 1px solid rgba(255,255,255,.1); }
.rec-cold-phase-label { font-size: .6rem; color: var(--rec-text); }
.rec-cold-phase-sub { font-size: .5rem; color: var(--rec-muted); }

/* ── Metrics Grid ────────────────────────────────────────── */
.rec-metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .75rem;
  margin-bottom: 1rem;
}
.rec-metric-card {
  background: var(--rec-surface);
  border: 1px solid var(--rec-border);
  border-radius: 12px;
  padding: .85rem;
}
.rec-metric-icon { font-size: 1.2rem; margin-bottom: .4rem; }
.rec-metric-val {
  font-family: 'Syne', sans-serif;
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--rec-accent);
}
.rec-metric-label { font-size: .5rem; color: var(--rec-muted); letter-spacing: .08em; margin-top: .25rem; }
.rec-metric-trend {
  font-size: .52rem;
  margin-top: .3rem;
}
.rec-metric-trend.up { color: var(--rec-green); }
.rec-metric-trend.down { color: var(--rec-pink); }

/* ── Zone Affinity Map ───────────────────────────────────── */
.rec-zone-list { display: flex; flex-direction: column; gap: .5rem; }
.rec-zone-row {
  display: flex;
  align-items: center;
  gap: .75rem;
  background: var(--rec-surface);
  border-radius: 8px;
  padding: .6rem .75rem;
}
.rec-zone-name { flex: 1; font-size: .62rem; color: var(--rec-text); }
.rec-zone-bar-wrap { width: 80px; background: rgba(255,255,255,.06); border-radius: 3px; height: 5px; overflow: hidden; }
.rec-zone-bar { height: 100%; border-radius: 3px; background: linear-gradient(90deg, var(--rec-accent), var(--rec-teal)); }
.rec-zone-pct { font-size: .55rem; color: var(--rec-muted); width: 28px; text-align: right; }

/* ── Simulate Button ─────────────────────────────────────── */
.rec-btn {
  width: 100%;
  padding: .8rem;
  border-radius: 10px;
  font-family: 'DM Mono', monospace;
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .08em;
  cursor: pointer;
  border: none;
  transition: all .2s;
  margin-top: .75rem;
}
.rec-btn-primary {
  background: linear-gradient(135deg, var(--rec-accent), #6b3fd4);
  color: #fff;
}
.rec-btn-primary:hover { opacity: .85; }
.rec-btn-secondary {
  background: rgba(138,87,255,.1);
  border: 1px solid rgba(138,87,255,.25);
  color: var(--rec-accent);
}

/* ── Feed Pill "Por qué" ──────────────────────────────────── */
.rec-why-pill {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  background: rgba(138,87,255,.1);
  border: 1px solid rgba(138,87,255,.2);
  border-radius: 20px;
  padding: .2rem .55rem;
  font-size: .48rem;
  color: var(--rec-accent);
  cursor: pointer;
  margin-top: .4rem;
  font-family: 'DM Mono', monospace;
  letter-spacing: .06em;
}
.rec-why-pill:hover { background: rgba(138,87,255,.18); }

/* ── Injected score on posts (subtle) ─────────────────────── */
.rec-post-rank-badge {
  position: absolute;
  top: .5rem;
  right: .5rem;
  background: rgba(138,87,255,.15);
  border: 1px solid rgba(138,87,255,.25);
  border-radius: 20px;
  padding: .15rem .45rem;
  font-size: .48rem;
  color: var(--rec-accent);
  font-family: 'DM Mono', monospace;
  pointer-events: none;
}