/* ==========================================================================
   AMERICAN ENGLISH ACADEMY - HOJA DE ESTILOS MODERNA UX/UI (css/styles.css)
   Inspirada en Duolingo, Babbel y Busuu. Totalmente Responsiva (Desktop/Tablet/Móvil)
   ========================================================================== */

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #eff6ff;
  --secondary: #0f172a;
  --accent: #ef4444;
  --success: #16a34a;
  --success-bg: #dcfce7;
  --warning: #d97706;
  --warning-bg: #fef3c7;
  --danger: #dc2626;
  --danger-bg: #fee2e2;
  --purple: #7c3aed;
  --purple-bg: #f3e8ff;
  --bg-body: #f8fafc;
  --bg-card: #ffffff;
  --text-main: #0f172a;
  --text-muted: #475569;
  --border: #e2e8f0;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 14px 34px rgba(37, 99, 235, 0.14);
}

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

body {
  font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* --- LAYOUT GENERAL (SIDEBAR + MAIN CONTENT) --- */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 292px;
  background: linear-gradient(180deg, #06152d 0%, #0b2144 55%, #091326 100%);
  color: #ffffff;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  overflow-y: auto;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 6px 0 28px rgba(6, 21, 45, 0.22);
  transition: transform 0.28s ease;
}

.brand-header {
  padding: 18px 16px;
  display: flex;
  align-items: center;
  gap: 14px;
  border-bottom: 2px solid #eab308;
  background: linear-gradient(135deg, #002855 0%, #1e3a8a 60%, #0f172a 100%);
  position: relative;
  overflow: hidden;
  transition: background 0.25s ease;
}

.brand-header::after {
  content: '';
  position: absolute;
  top: -30px;
  right: -30px;
  width: 110px;
  height: 110px;
  background: radial-gradient(circle, rgba(250, 204, 21, 0.22) 0%, transparent 70%);
  pointer-events: none;
}

.brand-logo-wrap {
  width: 68px;
  height: 68px;
  border-radius: 16px;
  background: #ffffff;
  padding: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2.5px solid #facc15;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4), 0 0 14px rgba(250, 204, 21, 0.35);
  flex-shrink: 0;
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.brand-header:hover .brand-logo-wrap {
  transform: scale(1.05) rotate(-1deg);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.5), 0 0 20px rgba(250, 204, 21, 0.55);
}

.brand-logo-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 12px;
  display: block;
}

.brand-title {
  min-width: 0;
  flex: 1;
}

.brand-tag {
  display: inline-block;
  font-size: 9.5px;
  font-weight: 900;
  letter-spacing: 0.9px;
  text-transform: uppercase;
  color: #002855;
  background: linear-gradient(90deg, #fde047, #f59e0b);
  padding: 2px 8px;
  border-radius: 999px;
  margin-bottom: 4px;
  box-shadow: 0 2px 6px rgba(245, 158, 11, 0.35);
}

.brand-title h1 {
  font-size: 19px;
  font-weight: 900;
  letter-spacing: -0.2px;
  line-height: 1.15;
  color: #ffffff;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
}

.brand-title span {
  font-size: 11px;
  font-weight: 600;
  color: #bae6fd;
  display: block;
  margin-top: 3px;
  line-height: 1.25;
}

.nav-menu {
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  flex: 1;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 11px 14px;
  border: 1px solid transparent;
  border-radius: 11px;
  background: transparent;
  color: #cbd5e1;
  font-size: 13.8px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: all 0.18s ease;
}

.nav-btn:hover {
  background: rgba(255, 255, 255, 0.09);
  color: #ffffff;
  transform: translateX(4px);
  border-color: rgba(255, 255, 255, 0.1);
}

.nav-btn.active {
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: #ffffff;
  border-left: 4px solid #facc15;
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.45);
}

.nav-btn .nav-icon {
  font-size: 18px;
  width: 24px;
  text-align: center;
}

.sidebar-footer {
  padding: 14px 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.28);
  font-size: 12px;
  color: #94a3b8;
}

/* --- CONTENEDOR PRINCIPAL --- */
.main-area {
  flex: 1;
  margin-left: 292px;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* --- TOPBAR DE ESTADO Y AUDIO GLOBAL --- */
.topbar {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 12px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 80;
  box-shadow: var(--shadow-sm);
  flex-wrap: wrap;
}

.mobile-menu-btn {
  display: none;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid #bfdbfe;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 18px;
  cursor: pointer;
  font-weight: 700;
}

.topbar-stats {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.stat-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 13px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  background: #f1f5f9;
  color: var(--text-main);
  border: 1px solid var(--border);
}

.stat-pill.streak {
  background: #fff7ed;
  color: #c2410c;
  border-color: #fed7aa;
}

.stat-pill.level-pill {
  background: var(--primary-light);
  color: var(--primary-dark);
  border-color: #bfdbfe;
}

.audio-quick-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.speed-group {
  display: inline-flex;
  background: #f1f5f9;
  padding: 3px;
  border-radius: 999px;
  border: 1px solid var(--border);
}

.speed-btn {
  border: none;
  background: transparent;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s;
}

.speed-btn.active {
  background: var(--primary);
  color: #ffffff;
}

.voice-select {
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 12.5px;
  background: #ffffff;
  color: var(--text-main);
  max-width: 220px;
}

/* --- CONTENIDO DE VISTAS --- */
.view-container {
  padding: 28px 32px 80px;
  max-width: 1240px;
  width: 100%;
  margin: 0 auto;
}

/* --- TARJETAS Y COMPONENTES --- */
.hero-banner {
  background: linear-gradient(135deg, #1d4ed8 0%, #1e1b4b 100%);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  margin-bottom: 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  box-shadow: var(--shadow-lg);
  flex-wrap: wrap;
}

.hero-banner h2 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 8px;
}

.hero-banner p {
  color: #dbeafe;
  font-size: 15px;
  max-width: 660px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 16px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.card-hover:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.card-title {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 11px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.badge-blue { background: var(--primary-light); color: var(--primary-dark); }
.badge-green { background: var(--success-bg); color: var(--success); }
.badge-amber { background: var(--warning-bg); color: var(--warning); }
.badge-red { background: var(--danger-bg); color: var(--danger); }
.badge-purple { background: var(--purple-bg); color: var(--purple); }
.badge-locked { background: #f1f5f9; color: #64748b; }

/* --- BOTONES GRANDES Y ACCESIBLES --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all 0.18s ease;
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.28);
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.btn-success {
  background: var(--success);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(22, 163, 74, 0.25);
}

.btn-success:hover:not(:disabled) {
  background: #15803d;
}

.btn-accent {
  background: #ffffff;
  color: var(--primary-dark);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
}

.btn-accent:hover:not(:disabled) {
  background: #f8fafc;
  transform: translateY(-1px);
}

.btn-outline {
  background: #ffffff;
  color: var(--text-main);
  border: 1.5px solid var(--border);
}

.btn-outline:hover:not(:disabled) {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}

.btn-sm {
  padding: 7px 13px;
  font-size: 13px;
  border-radius: 8px;
}

.btn-audio {
  background: #eff6ff;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
  padding: 7px 13px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s;
}

.btn-audio:hover {
  background: #2563eb;
  color: #ffffff;
  border-color: #2563eb;
}

/* --- BARRAS DE PROGRESO --- */
.progress-track {
  width: 100%;
  height: 11px;
  background: #e2e8f0;
  border-radius: 999px;
  overflow: hidden;
  margin: 8px 0;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #2563eb, #10b981);
  border-radius: 999px;
  transition: width 0.4s ease;
}

/* --- PESTAÑAS DE LA CLASE (SECCIONES A - I) --- */
.lesson-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 10px;
  margin-bottom: 22px;
  border-bottom: 2px solid var(--border);
}

.lesson-tab-btn {
  padding: 10px 16px;
  border-radius: 10px;
  border: 1.5px solid var(--border);
  background: #ffffff;
  color: var(--text-muted);
  font-size: 13.5px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.18s;
}

.lesson-tab-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.lesson-tab-btn.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

/* --- TABLA DE 3 COLUMNAS PARA EJEMPLOS PRÁCTICOS --- */
.examples-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.examples-table {
  width: 100%;
  border-collapse: collapse;
  background: #ffffff;
}

.examples-table th {
  background: #f1f5f9;
  color: var(--secondary);
  font-weight: 800;
  text-align: left;
  padding: 14px 16px;
  font-size: 13.5px;
  border-bottom: 2px solid var(--border);
}

.examples-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 14.5px;
  vertical-align: middle;
}

.examples-table tr:hover td {
  background: #f8fafc;
}

.pron-badge {
  display: inline-block;
  background: #fef3c7;
  color: #92400e;
  padding: 4px 10px;
  border-radius: 8px;
  font-family: 'Segoe UI', sans-serif;
  font-weight: 600;
  font-size: 13.5px;
}

/* --- TARJETAS DE FÓRMULAS GRAMATICALES Y 3 PREGUNTAS --- */
.formula-box {
  background: #f8fafc;
  border-left: 4px solid var(--primary);
  padding: 13px 16px;
  border-radius: 0 10px 10px 0;
  margin-bottom: 10px;
}

.formula-box strong {
  display: block;
  font-size: 12.5px;
  text-transform: uppercase;
  color: var(--primary-dark);
  letter-spacing: 0.4px;
}

.formula-box code {
  font-size: 15px;
  font-weight: 700;
  color: var(--secondary);
  font-family: Consolas, Monaco, monospace;
}

.mistake-alert {
  background: #fff1f2;
  border-left: 4px solid var(--danger);
  padding: 12px 16px;
  border-radius: 0 10px 10px 0;
  margin-bottom: 10px;
  color: #881337;
  font-size: 14px;
}

/* --- DIÁLOGO DE LISTENING CON RESALTADO --- */
.dialogue-line {
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #ffffff;
  margin-bottom: 10px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  transition: all 0.2s;
}

.dialogue-line.speaking-now {
  border-color: var(--primary);
  background: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* --- DIFF DE TRANSCRIPCIONES (LABORATORIO DE ESCUCHA Y DICTADOS) --- */
.diff-box {
  padding: 16px;
  border-radius: 12px;
  background: #f8fafc;
  border: 1px solid var(--border);
  line-height: 2;
  font-size: 16px;
}

.diff-word {
  padding: 3px 7px;
  border-radius: 6px;
  margin: 0 2px;
  display: inline-block;
}

.diff-correct {
  background: #dcfce7;
  color: #166534;
  font-weight: 700;
}

.diff-misspelled {
  background: #fef3c7;
  color: #92400e;
  border: 1px solid #fcd34d;
}

.diff-omitted {
  background: #fee2e2;
  color: #991b1b;
  font-weight: 700;
  border: 1px dashed #f87171;
}

.diff-extra {
  background: #f3e8ff;
  color: #6b21a8;
}

/* --- EJERCICIOS INTERACTIVOS --- */
.option-btn {
  display: block;
  width: 100%;
  text-align: left;
  padding: 13px 16px;
  margin-bottom: 9px;
  border-radius: 10px;
  border: 2px solid var(--border);
  background: #ffffff;
  font-size: 14.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}

.option-btn:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}

.option-btn.selected {
  border-color: var(--primary);
  background: #dbeafe;
  color: var(--primary-dark);
}

.option-btn.correct {
  border-color: var(--success);
  background: var(--success-bg);
  color: #14532d;
}

.option-btn.wrong {
  border-color: var(--danger);
  background: var(--danger-bg);
  color: #7f1d1d;
}

.word-chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  margin: 4px;
  border-radius: 999px;
  background: #ffffff;
  border: 2px solid #cbd5e1;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  user-select: none;
  transition: all 0.15s;
}

.word-chip:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}

.word-chip.used {
  opacity: 0.35;
  pointer-events: none;
}

.input-field {
  width: 100%;
  padding: 12px 15px;
  border-radius: 10px;
  border: 1.5px solid var(--border);
  font-size: 15px;
  font-family: inherit;
  transition: border-color 0.15s;
}

.input-field:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.feedback-banner {
  margin-top: 12px;
  padding: 14px 16px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
}

.feedback-banner.ok {
  background: var(--success-bg);
  color: #14532d;
  border: 1px solid #86efac;
}

.feedback-banner.err {
  background: var(--danger-bg);
  color: #7f1d1d;
  border: 1px solid #fca5a5;
}

.feedback-banner.hint {
  background: var(--warning-bg);
  color: #78350f;
  border: 1px solid #fde68a;
}

/* --- WIDGET FLOTANTE DEL PROFESOR VIRTUAL (COACH ALEX) --- */
.tutor-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 120;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  color: #ffffff;
  border: none;
  border-radius: 999px;
  padding: 14px 22px;
  font-size: 14.5px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 10px 28px rgba(37, 99, 235, 0.45);
  display: flex;
  align-items: center;
  gap: 10px;
  transition: transform 0.2s;
}

.tutor-fab:hover {
  transform: scale(1.04);
}

.tutor-drawer {
  position: fixed;
  bottom: 86px;
  right: 24px;
  width: 390px;
  max-width: calc(100vw - 32px);
  max-height: 78vh;
  background: #ffffff;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.25);
  border: 1px solid var(--border);
  z-index: 125;
  display: none;
  flex-direction: column;
  overflow: hidden;
}

.tutor-drawer.open {
  display: flex;
}

.tutor-header {
  background: linear-gradient(135deg, #1d4ed8, #4f46e5);
  color: #ffffff;
  padding: 16px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tutor-body {
  padding: 16px;
  overflow-y: auto;
  flex: 1;
  font-size: 13.8px;
}

/* --- MODAL DE AUTENTICACIÓN / PERFIL --- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal-backdrop.open {
  display: flex;
}

.modal-card {
  background: #ffffff;
  width: 100%;
  max-width: 480px;
  border-radius: var(--radius-lg);
  padding: 26px;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.25);
}

/* --- RESPONSIVE DESIGN --- */
@media (max-width: 960px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.mobile-open {
    transform: translateX(0);
  }
  .main-area {
    margin-left: 0;
  }
  .mobile-menu-btn {
    display: inline-flex;
  }
  .view-container {
    padding: 18px 16px 80px;
  }
  .hero-banner {
    padding: 20px;
  }
}


/* ==========================================================================
   IDENTIDAD VISUAL PREMIUM: ENGLISH IRENEB (UPeU American English Academy)
   ========================================================================== */

:root {
  --upeu-navy: #002855;
  --upeu-navy-light: #003e80;
  --upeu-gold: #c59b27;
  --upeu-gold-light: #fef9c3;
}

.hero-banner {
  background: linear-gradient(135deg, #002855 0%, #1d4ed8 55%, #0f172a 100%);
  border-bottom: 4px solid #facc15;
  position: relative;
  overflow: hidden;
}

.hero-banner.upeu-hero {
  background: linear-gradient(135deg, #002248 0%, #1e3a8a 58%, #0f172a 100%);
  border-bottom: 4px solid #facc15;
}

.hero-brand-row {
  display: flex;
  align-items: center;
  gap: 22px;
  flex: 1;
  min-width: 280px;
}

.hero-brand-emblem {
  width: 108px;
  height: 108px;
  border-radius: 22px;
  background: #ffffff;
  padding: 5px;
  border: 3px solid #facc15;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4), 0 0 22px rgba(250, 204, 21, 0.45);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s ease;
}

.hero-brand-emblem:hover {
  transform: scale(1.04) rotate(-1deg);
}

.hero-brand-emblem img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 16px;
}

.auth-brand-banner {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 18px;
  margin-bottom: 18px;
  border-radius: 16px;
  background: linear-gradient(135deg, #002855 0%, #1e3a8a 100%);
  color: #ffffff;
  border-bottom: 3px solid #facc15;
  box-shadow: 0 8px 20px rgba(0, 40, 85, 0.18);
}

.auth-brand-banner img {
  width: 68px;
  height: 68px;
  border-radius: 14px;
  background: #ffffff;
  padding: 3px;
  border: 2px solid #facc15;
  object-fit: contain;
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .hero-brand-row {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* --- STEPPER DEL FLUJO ACADÉMICO UPeU (4 ETAPAS) --- */
.upeu-stepper {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(185px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.upeu-step {
  background: #ffffff;
  border: 2px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: all 0.2s;
}

.upeu-step.done {
  border-color: var(--success);
  background: #f0fdf4;
}

.upeu-step.current {
  border-color: var(--upeu-navy);
  background: #eff6ff;
  box-shadow: 0 4px 14px rgba(0, 40, 85, 0.14);
}

.upeu-step-num {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #e2e8f0;
  color: #475569;
  font-weight: 800;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.upeu-step.done .upeu-step-num {
  background: var(--success);
  color: #ffffff;
}

.upeu-step.current .upeu-step-num {
  background: var(--upeu-navy);
  color: #ffffff;
}

/* --- TABLAS ADMINISTRATIVAS Y KPI CARDS --- */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(195px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.kpi-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-left: 4px solid var(--upeu-navy);
  border-radius: 12px;
  padding: 16px;
  box-shadow: var(--shadow-sm);
}

.kpi-card .kpi-label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
}

.kpi-card .kpi-val {
  font-size: 26px;
  font-weight: 800;
  color: var(--upeu-navy);
  margin-top: 4px;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  background: #ffffff;
  font-size: 13.5px;
}

.admin-table th {
  background: var(--upeu-navy);
  color: #ffffff;
  font-weight: 700;
  padding: 12px 14px;
  text-align: left;
  white-space: nowrap;
}

.admin-table td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.admin-table tr:hover td {
  background: #f8fafc;
}

/* --- TARJETA DE CUENTAS DEMO EN EL LOGIN --- */
.demo-account-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 10px 14px;
  margin-bottom: 8px;
  border-radius: 10px;
  border: 1.5px solid #cbd5e1;
  background: #f8fafc;
  cursor: pointer;
  text-align: left;
  transition: all 0.15s;
}

.demo-account-btn:hover {
  border-color: var(--upeu-navy);
  background: #eff6ff;
}