/* ═══════════════════════════════════════════════════════════════
   Universidad.io — Design System
   ═══════════════════════════════════════════════════════════════ */

/* === Aislamiento total del modo de color del navegador === */
:root {
  color-scheme: dark;
}

html, body {
  color-scheme: dark;
  forced-colors-adjust: none;
}

/* Bloquear cualquier override del usuario/OS sobre imagenes y elementos UI */
img, svg, picture, video, canvas,
button, input, select, textarea {
  forced-colors-adjust: none;
}

/* Asegurar que prefers-color-scheme: light no anule estilos de la app */
@media (prefers-color-scheme: light) {
  :root, html, body { color-scheme: dark; }
}

/* Bloquear inversion de colores de Windows High Contrast / forced-colors */
@media (forced-colors: active) {
  * {
    forced-colors-adjust: none;
  }
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--t1);
  min-height: 100vh;
  line-height: 1.5;
}

a { text-decoration: none; color: inherit; }

/* ── Page transitions ────────────────────────────────────────── */
.page-content {
  opacity: 1;
  transition: opacity 0.15s ease;
}
.page-leaving .page-content {
  opacity: 0;
}

/* ── OVERLAY ─────────────────────────────────────────────────── */
.overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,.65); z-index: 299;
  opacity: 0; transition: opacity .3s;
  backdrop-filter: blur(3px);
}
.overlay.show { display: block; opacity: 1; }

/* ── SIDEBAR — glass premium (Sprint 35 Block 2.2 — sin violeta) ── */
.sidebar {
  width: var(--sw);
  background:
    radial-gradient(90% 55% at 50% 0%, rgba(255,255,255,0.055) 0%, rgba(0,0,0,0) 65%),
    radial-gradient(50% 35% at 15% 20%, rgba(255,255,255,0.10) 0%, rgba(0,0,0,0) 65%),
    radial-gradient(45% 32% at 85% 75%, rgba(255,255,255,0.06) 0%, rgba(0,0,0,0) 65%),
    #000000;
  backdrop-filter: blur(24px) saturate(140%);
  -webkit-backdrop-filter: blur(24px) saturate(140%);
  border-right: 1px solid rgba(255,255,255,0.08);
  box-shadow: inset -1px 0 0 rgba(255,255,255,0.04), 4px 0 24px rgba(0,0,0,0.4);
  position: fixed; top: 0; left: 0; bottom: 0;
  z-index: 300;
  display: flex; flex-direction: column;
  transition: transform .3s cubic-bezier(.4,0,.2,1);
}

.sb-logo {
  display: flex; align-items: center; justify-content: space-between;
  gap: 8px;
  padding: 14px 14px; border-bottom: 1px solid rgba(255,255,255,0.07);
  text-decoration: none; flex-shrink: 0;
  background: rgba(255,255,255,0.02);
}
.sb-logo-mark {
  display: flex; align-items: center; gap: 6px;
  min-width: 0; flex: 0 1 auto; overflow: visible;
}
.sb-logo-icon {
  width: 28px; height: 28px;
  background: var(--ac); border-radius: var(--rmd);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 900; color: #fff; flex-shrink: 0;
}
.sb-logo-text {
  font-size: 15px; font-weight: 800; color: var(--t1);
  letter-spacing: -.3px;
}
.sb-logo-text span { color: var(--ac); }

.sb-version-badge {
  display: inline-block;
  font-size: 9px; font-weight: 800;
  padding: 2px 5px; border-radius: 4px;
  letter-spacing: 0.6px; text-transform: uppercase;
  user-select: none; line-height: 1.4; flex-shrink: 0;
}

.sb-close {
  display: none; background: none; border: none;
  color: var(--tm); cursor: pointer; padding: 4px;
  border-radius: var(--rsm);
}
.sb-close:hover { color: var(--t1); }

.nav-sec { padding: 8px 8px 2px; }
.nav-lbl {
  font-size: 10px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 1px; color: var(--tm);
  padding: 4px 8px 2px; margin-bottom: 2px;
}
.nav-item {
  display: flex; align-items: center; gap: 9px;
  padding: 6px 10px; border-radius: var(--rmd);
  font-size: 13px; font-weight: 500; color: rgba(255,255,255,0.65);
  cursor: pointer; transition: background .12s, color .12s;
  border: none; background: none;
  font-family: 'Inter', sans-serif;
  width: 100%; text-align: left;
}
.nav-item:hover { background: rgba(255,255,255,0.07); color: #fff; }
.nav-item.active {
  background: rgba(61,90,254,0.18);
  color: #fff; font-weight: 600;
  box-shadow: inset 0 0 0 1px rgba(61,90,254,0.3);
}
.nav-ico { width: 18px; height: 18px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 15px; }

.nav-badge {
  margin-left: auto; background: var(--err);
  color: #fff; font-size: 10px; font-weight: 700;
  padding: 1px 6px; border-radius: 999px; min-width: 18px;
  text-align: center;
}
.live-dot {
  margin-left: auto; width: 7px; height: 7px;
  border-radius: 50%; background: var(--err);
  animation: pulse 1.5s infinite; flex-shrink: 0;
}
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(242,63,66,.4); }
  50%      { box-shadow: 0 0 0 5px rgba(242,63,66,0); }
}

.btn-logout {
  display: flex; align-items: center; gap: 9px;
  padding: 10px 12px; border-radius: 8px;
  font-size: 13px; font-weight: 500; color: rgba(255,255,255,0.70);
  cursor: pointer; transition: background 200ms ease, color 200ms ease;
  border: none; background: none;
  font-family: 'Inter', sans-serif;
  width: 100%; text-align: left;
  margin-top: 4px;
}
.btn-logout:hover { background: rgba(255,107,107,0.08); color: #FF6B6B; }

.sb-user {
  margin-top: auto; padding: 8px 8px;
  border-top: 1px solid var(--bdr); flex-shrink: 0;
}
.sb-uc {
  display: flex; align-items: center; gap: 9px;
  padding: 7px 10px; border-radius: var(--rmd);
  cursor: pointer; transition: background .15s;
}
.sb-uc:hover { background: var(--bg4); }
.sb-av {
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--ac); color: #fff;
  font-size: 11px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; position: relative;
}
.sb-av-online {
  position: absolute; bottom: -1px; right: -1px;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--ok); border: 2px solid var(--bg2);
}
.sb-uname { font-size: 12px; font-weight: 600; color: var(--t1); }
.sb-uplan { font-size: 10px; color: var(--tm); }

/* Admin badge */
.admin-badge-sb {
  margin: 8px 8px 2px;
  background: rgba(240,177,50,.1);
  border: 1px solid rgba(240,177,50,.2);
  border-radius: var(--rmd);
  padding: 6px 10px;
  font-size: 11px; font-weight: 700; color: var(--gold);
}

/* ── SIDEBAR — new user header + chips + footer (PARTE 2.B) ─── */
.sb-user-header {
  display: flex;
  flex-direction: column;
  padding: 16px 12px 14px;
  gap: 10px;
  border-bottom: 1px solid var(--bdr);
  flex-shrink: 0;
}
.sb-user-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.sb-av-big {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--ac); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 800;
  position: relative; margin: 0; flex-shrink: 0;
  overflow: hidden;
}
.sb-av-big img {
  width: 100%; height: 100%; object-fit: cover; border-radius: 50%;
}
.sb-user-col {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1;
}
.sb-uname-big {
  font-size: 14px; font-weight: 700; color: var(--t1);
  line-height: 1.2; text-align: left;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.sb-mention {
  font-size: 0.8rem; color: #3D5AFE; font-weight: 500;
  text-align: left; margin-top: 2px;
}
.sb-chips {
  display: flex; align-items: center; gap: 5px;
  flex-wrap: wrap; justify-content: center;
}
.sb-chip {
  display: inline-flex; align-items: center; gap: 3px;
  padding: 3px 8px; border-radius: 999px;
  font-size: 10px; font-weight: 600; white-space: nowrap;
}
/* Microfix 2: chip nivel → blanco sobre fondo neutro */
.sb-chip-lvl   { background: rgba(255,255,255,0.10); border: 1px solid rgba(255,255,255,0.15); color: #FFFFFF !important; }
.sb-chip-coins { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.10); color: var(--gold); }
.sb-chip-streak { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.10); color: rgba(255,255,255,0.75); }

/* ── Barra de progreso de nivel ──────────────────────────── */
.sb-level-progress { padding: 4px 4px 0; margin-top: 4px; }
.sb-level-bar {
  height: 6px;
  background: rgba(255,255,255,0.08);
  outline: 1px solid rgba(255,255,255,0.06);
  border-radius: 999px;
  overflow: hidden;
  position: relative;
  margin-bottom: 8px;
}
.sb-level-fill {
  height: 100%;
  min-width: 6px;
  background: var(--gold);
  border-radius: 999px;
  transition: width .4s ease;
  position: relative; overflow: hidden;
}
.sb-level-fill::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.30), transparent);
  animation: sb-lvl-shimmer 2.4s infinite;
}
@keyframes sb-lvl-shimmer { 0%{transform:translateX(-100%)} 100%{transform:translateX(100%)} }
.sb-level-text {
  font-size: 0.78rem;
  color: var(--t2);
  text-align: center;
  display: flex; align-items: center; justify-content: center; gap: 3px;
}
.sb-level-text img { width: 12px; height: 12px; vertical-align: -2px; flex-shrink: 0; object-fit: contain; }

/* Flame 18×18 centrada + chip racha simétrico (Block 2.7) */
.sb-chip-streak,
.sb-chip.sb-chip-streak {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-size: 11px;
  line-height: 1;
  height: auto;
  min-height: 26px;
  box-sizing: border-box;
  vertical-align: middle;
}
.sb-chip-streak .sb-flame-icon,
.sb-flame-icon {
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0; width: 18px; height: 18px;
  vertical-align: middle;
}
.sb-chip-streak .sb-flame-icon svg,
.sb-flame-icon svg {
  width: 18px; height: 18px; display: block;
  filter: drop-shadow(0 0 5px rgba(255,107,53,0.6));
}

.sb-nav-scroll { flex: 1 1 0; overflow-y: auto; min-height: 0; }
.sb-nav-scroll::-webkit-scrollbar { width: 3px; }
.sb-nav-scroll::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 9999px; }

.nav-lbl {
  font-size: 10px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 1px; color: rgba(255,255,255,0.3);
  padding: 4px 8px 2px; margin-bottom: 2px;
}

/* Microfix 8: footer padding */
.sb-footer {
  flex-shrink: 0;
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 12px 16px;
  background: rgba(255,255,255,0.015);
}
#sbSubscriptionMount .sub-block {
  padding: 16px; margin-bottom: 8px;
  border-radius: var(--rmd);
}
#sbSubscriptionMount .sub-block-plan { font-size: 14px; color: #FFFFFF; font-weight: 600; }

.sb-footer-bottom {
  display: flex; align-items: center;
  justify-content: space-between; margin-bottom: 6px;
}
.sb-footer-profile {
  display: block;
  text-decoration: none;
  flex: 1; min-width: 0;
  padding: 10px 12px;
  border-radius: var(--rmd, 10px);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  transition: background .15s, border-color .15s, transform .1s;
  cursor: pointer;
  position: relative;
}
.sb-footer-profile:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.18);
}
.sb-footer-profile:active { transform: translateY(1px); }
.sb-footer-profile::after {
  content: '›';
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  color: rgba(255,255,255,0.4); font-size: 16px; font-weight: 300;
}
.sb-footer-profile:hover::after { color: rgba(255,255,255,0.8); }
.sb-footer-profile-name {
  font-size: 11px; font-weight: 600; color: var(--t2);
}
.sb-footer-profile-id {
  font-size: 10px; color: var(--tm);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.sb-footer-icons {
  display: flex; gap: 4px; flex-shrink: 0;
}

/* ── MAIN AREA ────────────────────────────────────────────────── */
.main {
  margin-left: var(--sw);
  display: flex; flex-direction: column;
  min-height: 100vh;
}

/* ── TOPBAR ───────────────────────────────────────────────────── */
.topbar {
  height: var(--th); flex-shrink: 0;
  background: rgba(30,31,34,.97);
  border-bottom: 1px solid var(--bdr);
  display: flex; align-items: center;
  padding: 0 16px; gap: 10px;
  position: sticky; top: 0; z-index: 200;
}
.hamburger {
  display: none; background: none; border: none;
  color: var(--t2); cursor: pointer; padding: 4px;
  border-radius: var(--rmd); flex-shrink: 0;
}
.hamburger:hover { color: var(--t1); }
.top-logo { height: 18px; width: auto; object-fit: contain; display: none; }
.top-title { font-size: 15px; font-weight: 700; flex: 1; }
.top-spacer { flex: 1; }
.top-btn {
  height: 32px; border-radius: 20px; padding: 0 10px;
  background: var(--bg2); border: 1px solid var(--bdr);
  color: var(--t2); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all .15s; position: relative; flex-shrink: 0;
}
.top-btn:hover { background: var(--bg4); color: var(--t1); }
.badge-r {
  position: absolute; top: -4px; right: -4px;
  background: var(--err); color: #fff;
  font-size: 9px; font-weight: 700;
  width: 16px; height: 16px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  border: 2px solid var(--bg);
}
.top-pill {
  display: flex; align-items: center; gap: 5px;
  padding: 4px 10px; border-radius: 999px;
  background: var(--bg3); border: 1px solid var(--bdr);
  font-size: 11px; font-weight: 600; color: var(--t2);
  cursor: default; flex-shrink: 0;
}
.top-admin-tag {
  font-size: 11px; font-weight: 700; color: var(--gold);
  background: rgba(240,177,50,.1); padding: 3px 10px;
  border-radius: 999px;
}
.top-pill-btn {
  display: flex; align-items: center; gap: 5px;
  padding: 0 10px; height: 32px; border-radius: 20px;
  background: var(--bg2); border: 1px solid var(--bdr);
  font-size: 12px; font-weight: 700; color: var(--t2);
  cursor: default; flex-shrink: 0; white-space: nowrap;
}
.top-pill-btn.gold { color: var(--gold); }
.top-pill-btn.lvl  { color: var(--ac); }
.top-pill-btn #topCoinsText { font-size: 12px; font-weight: 800; }

/* ── PAGE CONTENT ─────────────────────────────────────────────── */
.page {
  flex: 1; overflow-y: auto; padding: 24px 28px 60px;
}
.page::-webkit-scrollbar { width: 5px; }
.page::-webkit-scrollbar-thumb { background: var(--bdr); border-radius: 99px; }

.page-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  margin-bottom: 24px;
}
.page-title { font-size: 22px; font-weight: 800; letter-spacing: -.4px; }
.page-sub { font-size: 12px; color: var(--tm); margin-top: 3px; }

/* ── SECTION HEADER ───────────────────────────────────────────── */
.sh {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 14px; margin-top: 8px;
}
.sh-l {
  font-size: 10px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 1px; color: var(--tm); white-space: nowrap;
}
.sh-line { flex: 1; height: 1px; background: var(--bdr); }
.sh-c {
  font-size: 10px; font-weight: 700; padding: 2px 8px;
  border-radius: 999px; background: var(--bg3); color: var(--tm);
}

/* ── GRID ─────────────────────────────────────────────────────── */
.grid { display: grid; gap: 14px; margin-bottom: 28px; }
.g4 { grid-template-columns: repeat(4,1fr); }
.g3 { grid-template-columns: repeat(3,1fr); }
.g2 { grid-template-columns: repeat(2,1fr); }

/* ── KPI CARDS ────────────────────────────────────────────────── */
.kpi {
  background: var(--bg2); border: 1px solid var(--bdr);
  border-radius: var(--rlg); padding: 18px 20px;
}
.kpi-label { font-size: 11px; font-weight: 600; color: var(--tm); text-transform: uppercase; letter-spacing: .8px; margin-bottom: 6px; }
.kpi-val { font-size: 28px; font-weight: 800; letter-spacing: -.5px; line-height: 1; }
.kpi-sub { font-size: 11px; color: var(--tm); margin-top: 4px; }
.kpi-up { color: var(--ok); }
.kpi-dn { color: var(--err); }

/* ── CONTENT CARDS ────────────────────────────────────────────── */
.card {
  background: var(--bg2); border: 1px solid var(--bdr);
  border-radius: var(--rlg); overflow: hidden;
  cursor: pointer; transition: all .2s;
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 10px 36px rgba(0,0,0,.4); border-color: rgba(61,90,254,.4); }
.card.gold:hover { border-color: rgba(240,177,50,.4); }

.card-thumb {
  height: 72px; display: flex; align-items: center;
  justify-content: center; font-size: 30px;
  border-bottom: 1px solid rgba(255,255,255,.04);
  position: relative;
}
.card-body { padding: 14px 16px; flex: 1; display: flex; flex-direction: column; }
.card-tag { font-size: 9px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--tm); margin-bottom: 5px; }
.card-title { font-size: 14px; font-weight: 800; letter-spacing: -.2px; margin-bottom: 4px; }
.card-desc { font-size: 11px; color: var(--tm); line-height: 1.5; flex: 1; }
.card-cta { margin-top: 10px; font-size: 11px; font-weight: 700; color: var(--ac); }
.card.gold .card-cta { color: var(--gold); }

/* Progress bar */
.pbar-wrap { margin-top: 10px; }
.pbar-info { display: flex; justify-content: space-between; font-size: 10px; color: var(--tm); margin-bottom: 4px; }
.pbar { height: 4px; background: var(--bg4); border-radius: 999px; overflow: hidden; }
.pbar-fill { height: 100%; background: var(--ac); border-radius: 999px; transition: width .4s; }
.pbar-fill.gold { background: var(--gold); }
.pbar-fill.ok { background: var(--ok); }

/* ── PANELS / BOXES ───────────────────────────────────────────── */
.panel {
  background: var(--bg2); border: 1px solid var(--bdr);
  border-radius: var(--rlg); margin-bottom: 20px;
}
.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-bottom: 1px solid var(--bdr);
}
.panel-title { font-size: 13px; font-weight: 700; }
.panel-body { padding: 16px 18px; }

/* ── TABLE ────────────────────────────────────────────────────── */
.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl th {
  text-align: left; font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .8px;
  color: var(--tm); padding: 8px 12px;
  border-bottom: 1px solid var(--bdr);
}
.tbl td { padding: 10px 12px; border-bottom: 1px solid rgba(63,65,71,.4); color: var(--t2); }
.tbl tr:last-child td { border-bottom: none; }
.tbl tr:hover td { background: rgba(255,255,255,.02); }

/* ── BUTTONS ──────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 7px; padding: 9px 18px; border-radius: var(--rmd);
  font-family: 'Inter', sans-serif; font-size: 13px; font-weight: 600;
  cursor: pointer; transition: all .15s; border: none;
}
.btn-primary { background: var(--ac); color: #fff; }
.btn-primary:hover { background: var(--ach); }
.btn-primary:disabled { background: var(--bg4); color: var(--tm); cursor: not-allowed; }
.btn-secondary {
  background: var(--bg3); color: var(--t1);
  border: 1px solid var(--bdr);
}
.btn-secondary:hover { background: var(--bg4); }
.btn-danger { background: var(--err); color: #fff; }
.btn-danger:hover { background: #d03234; }
.btn-success { background: var(--ok); color: #fff; }
.btn-sm { padding: 5px 11px; font-size: 11px; }
.btn-lg { padding: 12px 28px; font-size: 15px; border-radius: var(--rlg); }

/* ── FORMS ────────────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-label { font-size: 12px; font-weight: 600; color: var(--t2); display: block; margin-bottom: 6px; }
.form-control {
  width: 100%; padding: 9px 12px;
  background: var(--bg3); border: 1px solid var(--bdr);
  border-radius: var(--rmd); color: var(--t1);
  font-family: 'Inter', sans-serif; font-size: 13px;
  transition: border-color .15s;
}
.form-control:focus { outline: none; border-color: var(--ac); }
.form-control::placeholder { color: var(--tm); }
select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 80px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-error { font-size: 11px; color: var(--err); margin-top: 4px; }
.form-help { font-size: 11px; color: var(--tm); margin-top: 4px; }

/* ── BADGES ───────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center;
  padding: 2px 8px; border-radius: 999px;
  font-size: 10px; font-weight: 700;
}
.badge-ok  { background: rgba(35,165,90,.15); color: var(--ok); }
.badge-err { background: rgba(242,63,66,.15); color: var(--err); }
.badge-warn { background: rgba(230,126,34,.15); color: var(--warn); }
.badge-ac  { background: rgba(61,90,254,.15); color: var(--ac); }
.badge-gold { background: rgba(240,177,50,.15); color: var(--gold); }
.badge-muted { background: var(--bg4); color: var(--tm); }

/* ── AVATAR ───────────────────────────────────────────────────── */
.av {
  border-radius: 50%; background: var(--ac);
  color: #fff; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.av-sm  { width: 28px; height: 28px; font-size: 10px; }
.av-md  { width: 36px; height: 36px; font-size: 13px; }
.av-lg  { width: 52px; height: 52px; font-size: 19px; }
.av-xl  { width: 72px; height: 72px; font-size: 26px; }

/* ── TOAST ────────────────────────────────────────────────────── */
#toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
  background: var(--bg3); border: 1px solid var(--bdr);
  padding: 10px 20px; border-radius: var(--rlg);
  font-size: 13px; font-weight: 600; color: var(--t1);
  opacity: 0; transition: opacity .2s; z-index: 9999;
  pointer-events: none; white-space: nowrap;
  box-shadow: 0 8px 32px rgba(0,0,0,.5);
}
#toast.show { opacity: 1; }
#toast.ok  { border-color: var(--ok); color: var(--ok); }
#toast.err { border-color: var(--err); color: var(--err); }

/* ── MODAL ────────────────────────────────────────────────────── */
/* Disclaimer / fullscreen overlay pattern */
.modal-overlay {
  display: none; position: fixed; inset: 0; z-index: 1000;
  background: rgba(0,0,0,.65); backdrop-filter: blur(4px);
  align-items: center; justify-content: center; padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal-box {
  background: var(--bg2); border: 1px solid var(--bdr);
  border-radius: var(--rxl); padding: 28px 28px 24px;
  max-width: 460px; width: 100%; position: relative;
}
.modal-body { font-size: 14px; color: var(--t2); line-height: 1.75; margin-bottom: 24px; }
.modal-btn {
  width: 100%; padding: 12px; border-radius: var(--rmd);
  background: var(--ac); color: #fff; border: none;
  font-family: 'Inter', sans-serif; font-size: 14px; font-weight: 700;
  cursor: pointer; transition: background .15s;
}
.modal-btn:hover { background: var(--ach); }

.modal-bg {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,.7); z-index: 500;
  align-items: center; justify-content: center;
  backdrop-filter: blur(4px);
}
.modal-bg.open { display: flex; }
.modal {
  background: var(--bg2); border: 1px solid var(--bdr);
  border-radius: var(--rxl); padding: 28px;
  width: 100%; max-width: 480px;
  max-height: 90vh; overflow-y: auto;
  animation: slideUp .2s ease;
}
.modal-lg { max-width: 680px; }
@keyframes slideUp { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.modal-title { font-size: 16px; font-weight: 800; }
.modal-close { background: none; border: none; color: var(--tm); cursor: pointer; font-size: 20px; line-height: 1; }
.modal-close:hover { color: var(--t1); }
.modal-foot { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; }

/* ── SPINNER ──────────────────────────────────────────────────── */
.spin {
  width: 22px; height: 22px;
  border: 2px solid var(--bdr); border-top-color: var(--ac);
  border-radius: 50%; animation: rotating .7s linear infinite;
}
@keyframes rotating { to { transform: rotate(360deg); } }
.loading-overlay {
  display: flex; align-items: center; justify-content: center;
  padding: 48px; gap: 12px; color: var(--tm); font-size: 13px;
}

/* ── TABS ─────────────────────────────────────────────────────── */
.tabs {
  display: flex; gap: 2px; border-bottom: 1px solid var(--bdr);
  margin-bottom: 20px;
}
.tab {
  padding: 9px 16px; font-size: 13px; font-weight: 500;
  color: var(--t2); cursor: pointer; border: none;
  background: none; font-family: 'Inter', sans-serif;
  border-bottom: 2px solid transparent; margin-bottom: -1px;
  transition: all .15s;
}
.tab:hover { color: var(--t1); }
.tab.active { color: var(--ac); border-bottom-color: var(--ac); font-weight: 600; }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── EMPTY STATE ──────────────────────────────────────────────── */
.empty {
  text-align: center; padding: 48px 20px; color: var(--tm);
}
.empty-icon { font-size: 40px; margin-bottom: 12px; }
.empty-title { font-size: 15px; font-weight: 700; color: var(--t2); margin-bottom: 6px; }
.empty-desc { font-size: 12px; line-height: 1.6; }

/* ── NOTIFICATION PANEL ───────────────────────────────────────── */
.notif-panel {
  position: fixed; top: 62px; right: 14px;
  width: 340px; background: var(--bg2);
  border: 1px solid var(--bdr); border-radius: var(--rlg);
  box-shadow: 0 12px 40px rgba(0,0,0,.5);
  z-index: 400; display: none;
  max-height: 420px; overflow-y: auto;
}
.notif-panel.open { display: block; }

/* ── SIDEBAR FOOTER ACTIONS (bell + disclaimer) ───────────────── */
.sb-footer-actions {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 8px; border-top: 1px solid var(--bdr); flex-shrink: 0;
}
.sb-footer-btn {
  display: flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: var(--rmd);
  background: none; border: none; color: var(--tm);
  cursor: pointer; font-size: 14px; position: relative;
  transition: background .12s, color .12s;
  flex-shrink: 0;
}
.sb-footer-btn:hover { background: var(--bg4); color: var(--t1); }
.notif-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; border-bottom: 1px solid var(--bdr);
  font-size: 13px; font-weight: 700; color: var(--t1);
}
.notif-item {
  padding: 12px 16px; border-bottom: 1px solid rgba(63,65,71,.5);
  cursor: pointer; transition: background .1s;
}
.notif-item:hover { background: rgba(255,255,255,.03); }
.notif-item.unread { background: rgba(61,90,254,.05); }
.notif-title { font-size: 12px; font-weight: 600; color: var(--t1); margin-bottom: 3px; }
.notif-body { font-size: 11px; color: var(--t2); line-height: 1.4; }
.notif-time { font-size: 10px; color: var(--tm); margin-top: 4px; }

/* ── MOBILE ───────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .sb-close { display: block; }
  .main { margin-left: 0; }
  .g4 { grid-template-columns: repeat(2,1fr); }
  .g3 { grid-template-columns: repeat(2,1fr); }
  .form-row { grid-template-columns: 1fr; }
  .page { padding: 16px 14px 60px; }
}
@media (max-width: 480px) {
  .g3, .g2 { grid-template-columns: 1fr; }
}

/* ── U Coins symbol oficial (/img/c.png) ─────────────────────── */
.ucoin-symbol{display:inline-block;width:1em;height:1em;vertical-align:-0.15em;background:url('/img/c.png') center/contain no-repeat;flex-shrink:0}
.ucoin-amount{display:inline-flex;align-items:center;gap:.35em;font-variant-numeric:tabular-nums}
.ucoin-amount .ucoin-symbol{width:1.05em;height:1.05em}

/* ── Modal U Coins multi-step (.ucm-*) ───────────────────────── */
.ucm-bg{position:fixed;inset:0;background:rgba(0,0,0,.7);backdrop-filter:blur(4px);z-index:9999;display:flex;align-items:center;justify-content:center;padding:16px}
.ucm-bg[hidden]{display:none!important}
.ucm-modal{background:var(--bg2);border:1px solid var(--bdr);border-radius:14px;width:min(880px,100%);max-height:90vh;overflow:auto;position:relative;padding:24px}
.ucm-close{position:absolute;top:12px;right:12px;width:32px;height:32px;border-radius:8px;background:transparent;border:1px solid var(--bdr);color:var(--t1);cursor:pointer;font-size:18px;line-height:1}
.ucm-close:hover{background:var(--bg3)}
.ucm-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-right:40px;margin-bottom:16px}
.ucm-head h2{margin:0;flex:1;min-width:0;font-size:18px;font-weight:700;color:#fff}
.ucm-step-indicator{margin:0;flex-shrink:0;font-size:13px;color:rgba(255,255,255,.5);display:inline-flex;align-items:center;gap:6px}
.ucm-step-indicator span{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;background:rgba(255,255,255,.06);font-size:12px;font-weight:600;color:rgba(255,255,255,.5)}
.ucm-step-indicator span.is-active{background:var(--ac);color:#fff}
.ucm-sub{color:var(--t2);margin:0 0 16px;font-size:14px}
.ucm-packs{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
@media(max-width:680px){.ucm-packs{grid-template-columns:repeat(2,1fr)}}
.ucm-pack{background:var(--bg3);border:1.5px solid var(--bdr);border-radius:10px;padding:12px 10px;cursor:pointer;text-align:center;color:var(--t1);transition:all .15s;position:relative;font-family:inherit}
.ucm-pack:hover{border-color:var(--ach);background:var(--bg4)}
.ucm-pack.is-featured{border-color:var(--gold)}
.ucm-pack-tag{position:absolute;top:-9px;left:50%;transform:translateX(-50%);background:var(--gold);color:#1a1300;font-size:10px;font-weight:700;padding:2px 8px;border-radius:8px;letter-spacing:.5px;white-space:nowrap}
.ucm-pack-coins{font-size:20px;font-weight:700;color:var(--gold);margin:6px 0 2px;display:inline-flex;align-items:center;gap:6px;justify-content:center}
.ucm-pack-coins .ucoin-symbol{width:18px;height:18px}
.ucm-pack-bonus{font-size:11px;color:var(--ok);margin:0 0 6px;min-height:14px}
.coin-pack-bonus-pill{position:absolute;top:6px;right:6px;background:linear-gradient(135deg,#22c55e,#16a34a);color:#fff;font-size:10px;font-weight:700;padding:2px 7px;border-radius:99px;line-height:1.4;white-space:nowrap;pointer-events:none}
.ucm-pack-price{font-size:14px;color:var(--t1);font-weight:600;margin:0}
.ucm-loading,.ucm-error{color:var(--t2);text-align:center;padding:20px}
.ucm-error{color:var(--err)}
.ucm-back{background:transparent;border:none;color:var(--ach);cursor:pointer;padding:0 0 12px;font-size:13px}
.ucm-summary{background:var(--bg3);border:1px solid var(--bdr);border-radius:10px;padding:16px;margin-bottom:16px}
.ucm-summary-row{display:flex;justify-content:space-between;align-items:center;padding:6px 0;color:var(--t1)}
.ucm-summary-row.is-total{border-top:1px solid var(--bdr);margin-top:8px;padding-top:12px;font-weight:700;font-size:16px}
.ucm-label{display:block;color:var(--t2);font-size:13px;margin:0 0 8px}
.ucm-stripe-element{background:var(--bg3);border:1px solid var(--bdr);border-radius:8px;padding:12px;min-height:42px}
.ucm-pay-error{color:var(--err);font-size:13px;margin:8px 0 0}
.ucm-pay-btn{width:100%;background:var(--ac);color:#fff;border:none;border-radius:10px;padding:12px;font-size:15px;font-weight:600;cursor:pointer;margin-top:14px}
.ucm-pay-btn:hover{background:var(--ach)}
.ucm-pay-btn:disabled{opacity:.6;cursor:wait}
.ucm-secure{text-align:center;color:var(--tm);font-size:12px;margin:10px 0 0}
.ucm-success{text-align:center;padding:20px 10px}
.ucm-check{width:64px;height:64px;border-radius:50%;background:var(--ok);color:#fff;font-size:36px;line-height:64px;margin:0 auto 14px}
.ucm-success h3{color:var(--t1);margin:0 0 8px}
.ucm-success p{color:var(--t2);margin:0 0 8px}
.ucm-balance{color:var(--t1)!important;font-size:16px;margin:14px 0 20px!important}
.ucm-balance strong{color:var(--gold);display:inline-flex;align-items:center;gap:6px}
.ucm-cta{background:var(--ac);color:#fff;border:none;border-radius:10px;padding:12px 24px;font-size:15px;font-weight:600;cursor:pointer;margin:0 6px}
.ucm-cta:hover{background:var(--ach)}
.ucm-cta-2{background:transparent;border:1px solid var(--bdr);color:var(--t2);border-radius:10px;padding:12px 18px;cursor:pointer;margin:0 6px}

/* ── Coin loader ─────────────────────────────────────────────── */
@keyframes cl-fadein  { from { opacity:0; transform:translateY(8px); } to { opacity:1; transform:none; } }
@keyframes cl-fadeout { from { opacity:1; } to { opacity:0; } }
@keyframes cl-pulse   { 0%,100% { transform:scale(1); } 50% { transform:scale(1.15); } }
@keyframes cl-rain    { 0% { opacity:0; transform:translateY(-20px) rotate(0deg); } 20% { opacity:1; } 80% { opacity:.7; } 100% { opacity:0; transform:translateY(40px) rotate(360deg); } }

.coin-loader {
  display:flex; flex-direction:column; align-items:center;
  padding:40px 20px; gap:14px;
  animation:cl-fadein .25s ease both;
}
.coin-loader.fadeout { animation:cl-fadeout .35s ease both; }

.coin-loader-stage { position:relative; width:72px; height:72px; }
.coin-loader-main  {
  width:72px; height:72px; object-fit:contain;
  animation:cl-pulse 1.2s ease-in-out infinite;
  position:relative; z-index:1;
}
.coin-loader-rain  {
  position:absolute; inset:0; pointer-events:none;
}
.cl-coin {
  position:absolute; width:18px; height:18px; object-fit:contain;
  opacity:0; animation:cl-rain 1.8s ease-in-out infinite;
  top:50%; left:50%; margin:-9px 0 0 -9px;
}
.cl-coin:nth-child(1)  { animation-delay:0s;    transform-origin:-20px -20px; }
.cl-coin:nth-child(2)  { animation-delay:.22s;  transform-origin:20px -20px; }
.cl-coin:nth-child(3)  { animation-delay:.44s;  transform-origin:-28px 0px; }
.cl-coin:nth-child(4)  { animation-delay:.66s;  transform-origin:28px 0px; }
.cl-coin:nth-child(5)  { animation-delay:.88s;  transform-origin:-20px 20px; }
.cl-coin:nth-child(6)  { animation-delay:1.1s;  transform-origin:20px 20px; }
.cl-coin:nth-child(7)  { animation-delay:1.32s; transform-origin:0px -28px; }
.cl-coin:nth-child(8)  { animation-delay:1.54s; transform-origin:0px 28px; }

.coin-loader-counter  { font-size:13px; color:var(--t2); font-weight:500; text-align:center; min-height:18px; }
.coin-loader-bar      { width:180px; height:4px; background:var(--bg3); border-radius:2px; overflow:hidden; }
.coin-loader-bar-fill { height:100%; background:var(--gold); border-radius:2px; transition:width .4s linear; width:0%; }

@media (prefers-reduced-motion: reduce) {
  .coin-loader-main, .cl-coin, .coin-loader, .coin-loader.fadeout { animation:none !important; }
  .cl-coin { display:none; }
}

/* ── Global Loader Overlay (Loader.overlay()) ────────────────── */
.global-loader-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center; justify-content: center;
  z-index: 9999;
}
.global-loader-overlay .coin-loader {
  background: var(--bg2);
  padding: 30px 40px;
  border-radius: 12px;
  border: 1px solid var(--bdr);
}

/* ═══════════════════════════════════════════════════════════════
   PARTE 7 — Container · Typography scale · Responsive polish
   ═══════════════════════════════════════════════════════════════ */

/* ── Design tokens additions ─────────────────────────────────── */
/* ── Container system ────────────────────────────────────────── */
.uio-container {
  max-width: var(--maxw);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--sp-lg);
  padding-right: var(--sp-lg);
  width: 100%;
}
.uio-container.uio-narrow { max-width: var(--maxw-narrow); }
.uio-container.uio-wide   { max-width: var(--maxw-wide); }

/* ── Page header component ───────────────────────────────────── */
.uio-page-header {
  display: flex; align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 24px; gap: 12px; flex-wrap: wrap;
}
.uio-page-title {
  font-size: 22px; font-weight: 800;
  letter-spacing: -.4px; color: var(--t1);
}
.uio-page-sub {
  font-size: 12px; color: var(--tm); margin-top: 3px;
}

/* ── Table horizontal scroll wrapper ────────────────────────── */
.uio-table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* ── Card utility ────────────────────────────────────────────── */
.uio-card {
  background: var(--bg2); border: 1px solid var(--bdr);
  border-radius: var(--rlg);
}

/* ── Skeleton loader ─────────────────────────────────────────── */
.uio-skeleton {
  background: linear-gradient(90deg, var(--bg3) 25%, var(--bg4) 50%, var(--bg3) 75%);
  background-size: 200% 100%;
  animation: uio-shimmer 1.4s infinite;
  border-radius: var(--rsm);
}
@keyframes uio-shimmer {
  from { background-position: 200% 0; }
  to   { background-position: -200% 0; }
}
@media (prefers-reduced-motion: reduce) {
  .uio-skeleton { animation: none; background: var(--bg4); }
}

/* ── Tablet breakpoint (≤1024px): sidebar collapses ─────────── */
@media (max-width: 1024px) {
  /* Sidebar slides off, close btn appears, hamburger appears */
  .sidebar      { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .sb-close     { display: block; }
  .hamburger    { display: flex; }
  /* Main area fills full width (for pages using .main wrapper) */
  .main         { margin-left: 0; }
  /* Container: slightly tighter padding on tablet */
  .uio-container { padding-left: var(--sp-md); padding-right: var(--sp-md); }
  /* Grid collapse */
  .g4 { grid-template-columns: repeat(2, 1fr); }
  /* Hamburger clearance — #mob-ham is 36px wide at left:12px, ends at ~48px */
  .rank-header, .prof-header, .dash-hero,
  .ntf-header, .men-header, .sup-header, .dir-header,
  .srt-header, .rec-header, .page-header, .uio-page-header {
    padding-left: 56px; min-height: 40px;
  }
}

@media (min-width: 1025px) {
  /* Reset hamburger clearance at desktop (sidebar visible, no overlap) */
  .rank-header, .prof-header, .dash-hero,
  .ntf-header, .men-header, .sup-header, .dir-header,
  .srt-header, .rec-header, .page-header, .uio-page-header {
    padding-left: 0; min-height: auto;
  }
}

@media (max-width: 768px) {
  /* Mobile: tightest padding */
  .uio-container { padding-left: 14px; padding-right: 14px; }
}

/* ── Touch targets ───────────────────────────────────────────── */
@media (hover: none) {
  .nav-item, .btn-logout { min-height: 44px; }
}

/* ── Ranking expandable rows (Sprint 36 fix-5.B) ─────────────── */
.rank-row-main {
  display: flex; align-items: center; gap: 12px; flex: 1; min-width: 0;
}
.rank-breakdown {
  width: 100%; overflow: hidden;
  max-height: 0; transition: max-height .25s ease;
}
.rank-breakdown.open {
  max-height: 300px;
  border-top: 1px solid rgba(63,65,71,.3);
}
.rank-bd-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 6px 12px; padding: 12px 16px 14px;
}
.rank-bd-item { display: flex; flex-direction: column; gap: 1px; }
.rank-bd-label { font-size: 10px; color: var(--tm); font-weight: 500; }
.rank-bd-val { font-size: 12px; font-weight: 700; color: var(--t1); }
.rank-bd-val--zero { color: var(--tm); }
.rank-bd-loading { padding: 14px 16px; font-size: 12px; color: var(--tm); }
.rank-pos-pts { font-size: 11px; color: var(--tm); margin-top: 2px; display: block; text-align: center; }
.rank-chevron {
  font-size: 11px; color: var(--tm); margin-left: 4px; flex-shrink: 0;
  transition: transform .25s ease; display: inline-block; user-select: none;
}
.rank-chevron.open { transform: rotate(180deg); }
.rank-chip--admin { border-color: rgba(250,100,100,.4); color: rgba(250,130,100,.9); }
.rank-chip--admin.active {
  background: rgba(250,100,100,.12);
  border-color: rgba(250,100,100,.7);
  color: rgba(255,140,110,1);
}
@media (max-width: 480px) {
  .rank-bd-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ── iOS zoom prevention — inputs ≥16px en mobile (Block 3.1) ───── */
@media (max-width: 480px) {
  input:not([type="checkbox"]):not([type="radio"]):not([type="range"]),
  textarea,
  select {
    font-size: 16px !important;
  }
}

/* ── Flame icon (sidebar + dashboard) Sprint 36 fix-5.C ─────────── */
.sb-flame-icon,
.dash-flame {
  display: inline-flex;
  vertical-align: middle;
  margin: 0 2px;
}
.sb-flame-icon svg,
.dash-flame svg {
  display: block;
}

/* ── UIO icon system (Sprint 36 fix-5.D) ────────────────────────── */
:root {
  --uio-icon-fire: #FF6B35;
  --uio-icon-fire-2: #EF4444;
  --uio-icon-gold: #FFD700;
  --uio-icon-silver: #C0C0C0;
  --uio-icon-bronze: #CD7F32;
  --uio-icon-live: #EF4444;
  --uio-icon-cyan: #06B6D4;
  --uio-icon-violet: #3D5AFE;
  --uio-icon-blue: #3B82F6;
  --uio-icon-yellow: #FBBF24;
  --uio-icon-amber: #F59E0B;
  --uio-icon-green: #10B981;
}
.uio-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1em; height: 1em;
  line-height: 1;
  vertical-align: -0.15em;
  flex-shrink: 0;
}
.uio-icon svg { width: 100%; height: 100%; display: block; }
.stat-ico .uio-icon { font-size: 1.8em; }
.rank-pos .uio-icon { font-size: 1.4em; }
.sec-card-title .uio-icon,
.notif-title .uio-icon { font-size: 1.05em; margin-right: 0.35em; }
.dash-greeting .uio-icon { font-size: 1.2em; }
.sb-footer-btn .uio-icon { font-size: 1em; margin-right: 0.3em; }

/* === USER IDENTITY (Sprint 38 fix-1) === */
.uid { display: inline-flex; align-items: center; gap: 5px; flex-wrap: wrap; min-width: 0; }
.uid-name { color: var(--t1); font-weight: 600; }
.uid-role {
  display: inline-flex; align-items: center;
  font-size: 10px; font-weight: 700;
  padding: 2px 7px; border-radius: 999px;
  letter-spacing: .3px; line-height: 1.4;
  white-space: nowrap;
}
.uid-role.role-admin     { background: rgba(240,177,50,.12);  color: #f0b132; border: 1px solid rgba(240,177,50,.3); }
.uid-role.role-profesor  { background: rgba(61,90,254,.12);  color: #3D5AFE; border: 1px solid rgba(61,90,254,.3); }
.uid-role.role-soporte   { background: rgba(34,211,238,.12);  color: #22d3ee; border: 1px solid rgba(34,211,238,.3); }
.uid-role.role-moderador { background: rgba(35,165,90,.12);   color: #23a55a; border: 1px solid rgba(35,165,90,.3);  }
.uid-gem   { width: max(1em, 14px); height: max(1em, 14px); display: inline-block; vertical-align: -0.1em; flex-shrink: 0; }
.uid-level { font-size: 11px; font-weight: 700; color: #fff; white-space: nowrap; }
.uid-mention { font-size: 0.8em; color: var(--tm); font-weight: 500; white-space: nowrap; }


/* === SPRINT 35 fix-1 — Compat tokens viejos -> nuevos === */
/* ==============================================================
   SPRINT 35 fix-2.1 — COMPAT BLOCK AMPLIADO
   Tras eliminar el :root Discord-theme legacy y el :root de
   layout legacy de app.css, este bloque es el ÚNICO lugar donde
   se mapean los aliases legacy a la paleta nueva (tokens.css).
   tokens.css es la fuente única de verdad de --bg, --ac, etc.
   ============================================================== */
:root {
  /* ── Backgrounds legacy → tokens.css ── */
  --bg2:        var(--bg-1);
  --bg3:        var(--bg-2);
  --bg4:        var(--surface);
  --bdr:        var(--border-2);

  /* ── Texts legacy → tokens.css ── */
  --t1:         var(--text);
  --t2:         var(--text-2);
  --tm:         var(--text-3);
  --text-muted: var(--text-2);

  /* ── Accent legacy (Discord) → cobalto ── */
  --ac2:        var(--ac-2);
  --ach:        var(--ac-2);           /* ac-hover */
  --acg:        var(--ac-soft);        /* ac-glow soft */

  /* ── Semánticos legacy ── */
  --ok:         var(--success);
  --err:        var(--danger);
  --warn:       var(--warning);

  /* ── Layout legacy ── */
  --sw:         var(--sw-expanded);    /* sidebar width 220px → 256px */
  --th:         var(--header-h);       /* topbar height 56px → 64px */

  /* ── Radii legacy ── */
  --rsm:        var(--r-1);            /* 4px → 6px */
  --rmd:        var(--r-2);            /* 8px → 10px */
  --rlg:        var(--r-3);            /* 12px → 14px */
  --rxl:        var(--r-4);            /* 16px → 18px */

  /* ── Spacing legacy ── */
  --sp-xs:      var(--sp-1);
  --sp-sm:      var(--sp-2);
  --sp-md:      var(--sp-4);
  --sp-lg:      var(--sp-6);
  --sp-xl:      var(--sp-7);
  --sp-2xl:     var(--sp-8);

  /* NOTA — Font sizes:
     tokens.css redefine --fs-xs..2xl con valores nuevos (12/13/15/16/18/22/28).
     Los antiguos eran (10/11/13/15/18/22). Las reglas legacy heredan los nuevos.
     Deuda técnica: tipografía ligeramente más grande en algunas páginas legacy;
     se corrige en fix-3 y B2..B5 al rediseñar cada página.
  */

  /* NOTA — --gold:
     tokens.css define --gold = #FFC857 (dorado nuevo).
     NO redefinir aquí. Binding "gold solo barra nivel" activa (CLAUDE.md).
  */
}

/* === SPRINT 35 fix-2 — Auditoría de colores en textos grandes ===
   --ac ahora es #3D5AFE (cobalto). Toda regla legacy var(--ac) hereda
   automáticamente. Las reglas con color en texto pequeño (11-13px):
   .sb-logo-text span, .sb-mention, .card-cta, .top-pill-btn.lvl → apropiadas.
   Deltas: .kpi-up / .kpi-dn (11px) → apropiados.
   Pendiente de rediseño en fix-3 y B2..B5:
   - .ucm-pack-coins (20px, var(--gold)) — precio de packs U Coins.
   - .ucm-balance strong (var(--gold)) — balance de coins.
=== */

/* ================================================================
   SPRINT 35 Block 2 — Shell global premium
   Sidebar avatar upload, brand-actions, header, bottom-nav, drawer
   ================================================================ */

/* ── Sidebar: brand-actions limpios sin cluster (Block 2.6) ─────── */
.sidebar-brand-actions {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
  background: transparent;
  border: 0;
  padding: 0;
  border-radius: 0;
  flex-shrink: 0;
}
.sidebar-brand-actions .sb-footer-btn {
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 0;
  border-radius: 4px;
  color: #fff;
  cursor: pointer;
  padding: 0;
  position: relative;
  transition: opacity 0.15s ease;
}
.sidebar-brand-actions .sb-footer-btn:hover { opacity: 0.75; }
.sidebar-brand-actions .sb-footer-btn svg { width: 13px; height: 13px; display: block; }
.sidebar-brand-actions .sb-footer-btn .notif-badge,
.sidebar-brand-actions #notifBadge {
  position: absolute;
  top: -2px;
  right: -2px;
}

/* ── Sidebar: Avatar upload (Microfix 1) ─────────────────────────── */
.sb-avatar-wrap {
  position: relative;
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--ac); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 800;
  flex-shrink: 0; overflow: hidden;
  cursor: pointer;
  transition: box-shadow .15s;
}
.sb-avatar-wrap:hover { box-shadow: 0 0 0 2px rgba(255,255,255,0.25); }
.sb-avatar-wrap:focus-visible { outline: 2px solid var(--ac); outline-offset: 2px; }
.sb-av-big-img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }
.sb-av-big-initials { font-size: 18px; font-weight: 800; line-height: 1; user-select: none; }
.sb-avatar-overlay {
  position: absolute; inset: 0; border-radius: 50%;
  background: rgba(0,0,0,0.55);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity .15s;
  pointer-events: none;
}
.sb-avatar-wrap:hover .sb-avatar-overlay { opacity: 1; }

/* ── Sidebar: subscription card with real diamond SVG (Block 2.2) ── */
#sbSubscriptionMount .sub-block {
  position: relative; overflow: hidden;
}
#sbSubscriptionMount .sub-block::after { display: none; }
.sub-block .sub-block-diamond,
#sbSubscriptionMount .sub-block-diamond {
  position: absolute;
  bottom: 10px;
  right: 10px;
  top: auto;
  left: auto;
  width: 36px;
  height: 36px;
  opacity: 0.35;
  transform: none;
  pointer-events: none;
  filter: drop-shadow(0 2px 6px rgba(61,90,254,0.4));
  z-index: 0;
}
#sbSubscriptionMount .sub-block > *:not(.sub-block-diamond) { position: relative; z-index: 1; }
#sbSubscriptionMount .sub-block-label,
#sbSubscriptionMount .sub-block-plan,
#sbSubscriptionMount .sub-block-info,
#sbSubscriptionMount .sub-block-tip {
  position: relative;
  z-index: 1;
}

/* ── Sidebar: footer-bottom tweaks ──────────────────────────────── */
.sb-footer-bottom {
  display: flex; align-items: center;
  justify-content: space-between; margin-bottom: 6px;
  padding: 0;
}
.sb-footer-profile-name {
  font-size: 11px; font-weight: 600; color: rgba(255,255,255,0.7);
}
.sb-footer-profile-id {
  font-size: 10px; color: rgba(255,255,255,0.35);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

/* ── Sidebar: logout premium ─────────────────────────────────────── */
.btn-logout {
  margin-top: 6px;
  border-radius: var(--r-2);
  background: rgba(255,92,122,0.05);
  border: 1px solid rgba(255,92,122,0.12);
}
.btn-logout:hover { background: rgba(255,92,122,0.12) !important; color: #FF6B6B !important; border-color: rgba(255,92,122,0.28); }

/* ── Mobile header (header.js) ───────────────────────────────────── */
#uio-header {
  display: none; /* hidden on desktop */
  position: fixed; top: 0; left: 0; right: 0; z-index: 350;
  height: var(--header-h-mobile);
  align-items: center; justify-content: space-between;
  padding: 0 12px; gap: 8px;
  background: rgba(3,4,12,0.88);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  box-shadow: 0 2px 16px rgba(0,0,0,0.4);
}
@media (max-width: 1024px) {
  #uio-header { display: flex; }
  /* Push page content below the mobile header */
  body.has-mobile-header { padding-top: var(--header-h-mobile); }
}
.uio-header-ham {
  width: 36px; height: 36px; border-radius: var(--r-2);
  background: rgba(255,255,255,0.06); border: none;
  color: rgba(255,255,255,0.8); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; transition: background .12s, color .12s;
}
.uio-header-ham:hover { background: rgba(255,255,255,0.12); color: #fff; }
.uio-header-logo {
  flex: 1; display: flex; align-items: center; justify-content: center;
  text-decoration: none; overflow: hidden;
}
.uio-header-actions {
  display: flex; align-items: center; gap: 6px; flex-shrink: 0;
}
.uio-header-btn {
  position: relative; width: 36px; height: 36px; border-radius: var(--r-2);
  background: rgba(255,255,255,0.06); border: none;
  color: rgba(255,255,255,0.8); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .12s, color .12s;
}
.uio-header-btn:hover { background: rgba(255,255,255,0.12); color: #fff; }
.uio-header-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--ac); color: #fff;
  font-size: 11px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden; cursor: pointer; flex-shrink: 0;
  border: 1.5px solid rgba(255,255,255,0.18);
}
/* Hide old floating hamburger when mobile header is active */
@media (max-width: 1024px) {
  #mob-ham { display: none !important; }
}

/* ── Bottom nav (bottom-nav.js) ─────────────────────────────────── */
#uio-bottomnav {
  display: none;
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 350;
  height: var(--bottomnav-h);
  background: rgba(3,4,12,0.92);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  border-top: 1px solid rgba(255,255,255,0.07);
  box-shadow: 0 -2px 20px rgba(0,0,0,0.45);
  align-items: stretch; justify-content: space-around;
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
@media (max-width: 768px) {
  #uio-bottomnav { display: flex; }
  /* Push content above bottom nav */
  body.has-bottomnav .page { padding-bottom: calc(var(--bottomnav-h) + 16px); }
}
.uio-bn-item {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 3px;
  flex: 1; padding: 8px 4px 6px;
  text-decoration: none; color: rgba(255,255,255,0.45);
  font-size: 10px; font-weight: 500;
  transition: color .12s;
  position: relative;
}
.uio-bn-item:hover { color: rgba(255,255,255,0.75); }
.uio-bn-item.active { color: #fff; }
.uio-bn-item.active::before {
  content: '';
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 32px; height: 2px; border-radius: 0 0 2px 2px;
  background: var(--ac);
}
.uio-bn-ico { display: flex; align-items: center; justify-content: center; width: 22px; height: 22px; }
.uio-bn-lbl { font-size: 9px; font-weight: 600; letter-spacing: 0.2px; white-space: nowrap; }

/* ── Mobile: sidebar drawer overlay adjustments ─────────────────── */
@media (max-width: 1024px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); box-shadow: 4px 0 32px rgba(0,0,0,0.6); }
}

/* ── Bottom nav modal sheet (Block 2.2) ──────────────────────────── */
.uio-bn-modal-ov {
  position: fixed; inset: 0; z-index: 400;
  background: rgba(0,0,0,0);
  backdrop-filter: blur(0px);
  -webkit-backdrop-filter: blur(0px);
  transition: background .25s ease, backdrop-filter .25s ease;
  display: flex; align-items: flex-end; justify-content: center;
}
.uio-bn-modal-ov.open {
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.uio-bn-modal-sheet {
  width: 100%; max-width: 480px;
  background: rgba(10,12,22,0.96);
  backdrop-filter: blur(24px) saturate(140%);
  -webkit-backdrop-filter: blur(24px) saturate(140%);
  border-top: 1px solid rgba(255,255,255,0.10);
  border-radius: 20px 20px 0 0;
  padding: 8px 12px calc(20px + env(safe-area-inset-bottom, 0px));
  transform: translateY(100%);
  animation: bn-sheet-in .28s cubic-bezier(.2,.8,.2,1) forwards;
  box-shadow: 0 -8px 40px rgba(0,0,0,0.6);
}
@keyframes bn-sheet-in { to { transform: translateY(0); } }
.uio-bn-modal-handle {
  width: 36px; height: 4px; border-radius: 2px;
  background: rgba(255,255,255,0.25);
  margin: 6px auto 12px;
}
.uio-bn-modal-title {
  font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px;
  color: rgba(255,255,255,0.5); padding: 4px 8px 12px;
}
.uio-bn-modal-list { display: flex; flex-direction: column; gap: 2px; }
.uio-bn-modal-item {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 12px; border-radius: 12px;
  text-decoration: none; color: #fff;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  transition: background .12s, border-color .12s, transform .08s;
  font-size: 15px; font-weight: 500;
}
.uio-bn-modal-item:hover,
.uio-bn-modal-item:active {
  background: rgba(255,255,255,0.07); border-color: rgba(255,255,255,0.14);
}
.uio-bn-modal-item:active { transform: scale(0.98); }
.uio-bn-modal-ico { font-size: 22px; width: 32px; text-align: center; flex-shrink: 0; }
.uio-bn-modal-lbl { flex: 1; }
.uio-bn-modal-arrow { color: rgba(255,255,255,0.4); font-size: 22px; font-weight: 300; line-height: 1; }