/* ============================================================
   Tablón de Permutas — SNTE Sección 10 CDMX
   Hoja de estilos global — basada en la identidad visual de indexa.html
   ============================================================ */

:root {
  --naranja: #F47920;
  --naranja-oscuro: #D4620A;
  --naranja-claro: #FF9A40;
  --blanco: #FFFFFF;
  --gris-suave: #F9F9F9;
  --gris-texto: #3A3A3A;
  --gris-borde: #F0E8E0;
  --verde-ok: #2E9B4F;
  --rojo-error: #D6412C;
  --sombra: 0 4px 24px rgba(244,121,32,0.18);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Open Sans', sans-serif;
  color: var(--gris-texto);
  background: var(--blanco);
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1 0 auto; }

a { color: inherit; }

img { max-width: 100%; display: block; }

/* ── GRECAS ── */
.greca {
  position: relative;
  left: 0; right: 0;
  height: 10px;
  width: 100%;
  background: repeating-linear-gradient(
    90deg,
    rgba(255,255,255,0.25) 0px, rgba(255,255,255,0.25) 10px,
    transparent 10px, transparent 20px,
    rgba(255,255,255,0.12) 20px, rgba(255,255,255,0.12) 24px,
    transparent 24px, transparent 34px
  );
}
.greca-strip { background: var(--naranja); }
.greca-top { top: 0; }
.greca-bottom { bottom: 0; }

.divisor-greca {
  height: 10px;
  background: repeating-linear-gradient(
    90deg,
    var(--naranja) 0, var(--naranja) 12px,
    var(--naranja-claro) 12px, var(--naranja-claro) 16px,
    var(--naranja) 16px, var(--naranja) 28px,
    rgba(244,121,32,0.3) 28px, rgba(244,121,32,0.3) 32px
  );
}

/* ── NAV ── */
.nav-bar {
  position: sticky;
  top: 0;
  z-index: 500;
  background: var(--blanco);
  border-bottom: 3px solid var(--naranja);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--naranja-oscuro);
  text-decoration: none;
  white-space: nowrap;
}
.nav-logo span { color: var(--gris-texto); font-weight: 600; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}
.nav-link {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  color: #777;
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 20px;
  transition: background 0.2s, color 0.2s;
  white-space: nowrap;
}
.nav-link:hover { background: #FFF6EE; color: var(--naranja-oscuro); }
.nav-link.activo { background: var(--naranja); color: var(--blanco); }
.nav-link .contador-mini {
  display: inline-block;
  min-width: 18px;
  padding: 1px 5px;
  margin-left: 6px;
  border-radius: 10px;
  background: var(--rojo-error);
  color: var(--blanco);
  font-size: 0.68rem;
  font-weight: 700;
  text-align: center;
}
.nav-user {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-user-nombre {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--gris-texto);
}

/* ── AVISO DE FORMALIZACIÓN DE PERMUTA ── */
.banner-aviso {
  background: #FFF6EE;
  border-bottom: 2px solid #F47920;
  padding: 10px 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  color: #D4620A;
  line-height: 1.4;
  flex-wrap: wrap;
}
.banner-aviso i {
  color: #F47920;
  flex-shrink: 0;
}
.banner-aviso strong {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  color: #D4620A;
  margin-right: 4px;
}
.match-aviso {
  margin-top: 12px;
  border-bottom: none;
  border: 1px solid #FFE0C4;
  border-radius: 8px;
}

/* ── PAGE HERO (banner interior) ── */
.page-hero {
  position: relative;
  background: linear-gradient(145deg, var(--naranja) 0%, var(--naranja-oscuro) 100%);
  padding: 48px 24px 56px;
  text-align: center;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.04) 0px, rgba(255,255,255,0.04) 2px, transparent 2px, transparent 20px),
    repeating-linear-gradient(-45deg, rgba(255,255,255,0.04) 0px, rgba(255,255,255,0.04) 2px, transparent 2px, transparent 20px);
  pointer-events: none;
}
.page-hero-deco {
  position: absolute;
  width: 360px; height: 360px;
  border-radius: 50%;
  border: 46px solid rgba(255,255,255,0.06);
  top: -140px; right: -120px;
  pointer-events: none;
}
.page-hero-deco2 {
  position: absolute;
  width: 260px; height: 260px;
  border-radius: 50%;
  border: 30px solid rgba(255,255,255,0.05);
  bottom: -100px; left: -80px;
  pointer-events: none;
}
.page-hero-inner { position: relative; z-index: 1; max-width: 760px; margin: 0 auto; }
.page-hero h1 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: clamp(1.7rem, 4.2vw, 2.5rem);
  color: var(--blanco);
  text-shadow: 0 2px 12px rgba(0,0,0,0.2);
  margin-bottom: 10px;
}
.page-hero p {
  color: rgba(255,255,255,0.92);
  font-size: clamp(0.95rem, 1.8vw, 1.05rem);
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto;
}
.page-hero-badges {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 24px;
  padding: 8px 20px;
  color: var(--blanco);
  font-size: 0.8rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ── PANTALLA DE BIENVENIDA (sin sesión) ── */
.bienvenida-hero {
  position: relative;
  min-height: 100vh;
  background: linear-gradient(145deg, var(--naranja) 0%, var(--naranja-oscuro) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 24px 80px;
  overflow: hidden;
  text-align: center;
}
.bienvenida-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.04) 0px, rgba(255,255,255,0.04) 2px, transparent 2px, transparent 20px),
    repeating-linear-gradient(-45deg, rgba(255,255,255,0.04) 0px, rgba(255,255,255,0.04) 2px, transparent 2px, transparent 20px);
  pointer-events: none;
}
.bienvenida-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 26px;
  max-width: 640px;
  width: 100%;
}
.logo-wrapper {
  width: 150px; height: 150px;
  display: flex; align-items: center; justify-content: center;
  animation: floatLogo 3.5s ease-in-out infinite;
  filter: drop-shadow(0 0 1px rgba(255,255,255,0.6)) drop-shadow(0 8px 24px rgba(0,0,0,0.30));
}
.logo-wrapper img { width: 100%; height: 100%; object-fit: contain; display: block; }
@keyframes floatLogo {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}
.bienvenida-title {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: clamp(1.8rem, 4.5vw, 2.8rem);
  color: var(--blanco);
  line-height: 1.2;
  text-shadow: 0 2px 12px rgba(0,0,0,0.2);
}
.bienvenida-title span {
  display: block;
  font-weight: 400;
  font-size: clamp(1rem, 2.2vw, 1.25rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.88;
  margin-top: 6px;
}
.bienvenida-desc {
  color: rgba(255,255,255,0.92);
  font-size: clamp(1rem, 2vw, 1.1rem);
  line-height: 1.75;
  max-width: 560px;
}
.bienvenida-nota {
  color: rgba(255,255,255,0.75);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.seccion-label {
  display: inline-block;
  background: var(--naranja);
  color: var(--blanco);
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 6px 18px;
  border-radius: 20px;
  margin-bottom: 16px;
}

/* ── BOTONES ── */
.btn-app, .btn-app-naranja, .btn-outline, .btn-danger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 13px 30px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.25s, box-shadow 0.25s, background 0.2s, color 0.2s;
  letter-spacing: 0.02em;
}
.btn-app {
  background: var(--blanco);
  color: var(--naranja-oscuro);
  box-shadow: 0 6px 28px rgba(0,0,0,0.22);
}
.btn-app:hover { transform: translateY(-3px) scale(1.03); box-shadow: 0 12px 36px rgba(0,0,0,0.28); }

.btn-app-naranja {
  background: linear-gradient(135deg, var(--naranja), var(--naranja-claro));
  color: var(--blanco);
  box-shadow: 0 6px 28px rgba(244,121,32,0.40);
}
.btn-app-naranja:hover { transform: translateY(-3px) scale(1.03); box-shadow: 0 14px 36px rgba(244,121,32,0.50); }

.btn-outline {
  background: transparent;
  color: var(--naranja-oscuro);
  border: 2px solid var(--naranja);
}
.btn-outline:hover { background: #FFF6EE; transform: translateY(-2px); }

.btn-danger {
  background: var(--blanco);
  color: var(--rojo-error);
  border: 2px solid var(--rojo-error);
}
.btn-danger:hover { background: #FDEEEC; transform: translateY(-2px); }

.btn-sm { padding: 9px 20px; font-size: 0.82rem; }
.btn-bloque { width: 100%; }
button:disabled { opacity: 0.55; cursor: not-allowed; transform: none !important; }

/* ── FILTROS / BUSCADOR ── */
.filtros-bar {
  max-width: 1100px;
  margin: -34px auto 0;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}
.filtros-card {
  background: var(--blanco);
  border-radius: 18px;
  box-shadow: var(--sombra);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.filtros-selects {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}
.filtros-selects .campo {
  flex: 1 1 200px;
  max-width: 240px;
}
@media (max-width: 780px) {
  .filtros-selects .campo { flex: 1 1 45%; max-width: none; }
}
.campo { display: flex; flex-direction: column; gap: 6px; }
.campo label {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #888;
}
input, select, textarea {
  font-family: 'Open Sans', sans-serif;
  font-size: 0.95rem;
  padding: 11px 14px;
  border: 2px solid var(--gris-borde);
  border-radius: 10px;
  color: var(--gris-texto);
  background: var(--blanco);
  width: 100%;
  transition: border-color 0.2s, box-shadow 0.2s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--naranja);
  box-shadow: 0 0 0 3px rgba(244,121,32,0.15);
}
textarea { resize: vertical; min-height: 90px; }
.campo-contador { font-size: 0.75rem; color: #999; text-align: right; }
.campo-error { font-size: 0.76rem; color: var(--rojo-error); font-weight: 600; margin-top: -2px; }

/* ── CONTENEDOR GENERAL ── */
.contenedor {
  max-width: 1100px;
  margin: 0 auto;
  padding: 44px 24px;
}
.contenedor-angosto { max-width: 640px; }

/* ── CONTADOR DE SOLICITUDES ── */
.resultado-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0 20px;
}
.resultado-info strong { color: var(--naranja-oscuro); }

/* ── GRID DE TARJETAS ── */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 22px;
}

.card {
  background: var(--blanco);
  border-radius: 18px;
  padding: 26px;
  box-shadow: 0 2px 16px rgba(244,121,32,0.10);
  transition: transform 0.25s, box-shadow 0.25s;
  border: 1px solid var(--gris-borde);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--sombra); }

.card-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.card-materia {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.08rem;
  color: var(--gris-texto);
}
.card-nombre { font-size: 0.85rem; color: #888; margin-top: 2px; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 14px;
  white-space: nowrap;
}
.chip-diurna { background: #EAF3FF; color: #2464C6; }
.chip-tecnica { background: #FFF0E4; color: var(--naranja-oscuro); }
.chip-telesecundaria { background: #EAF9EE; color: var(--verde-ok); }

/* Chips de solo lectura: alcaldías de interés mostradas en una tarjeta */
.tags-interes { display: flex; flex-wrap: wrap; gap: 6px; }
.tag-interes {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 12px;
  background: #FFF0E4;
  color: var(--naranja-oscuro);
  border: 1px solid #FFE0C4;
}

/* Selector interactivo de alcaldías de interés (formulario, máx. 3) */
.chips-selector { display: flex; flex-wrap: wrap; gap: 8px; }
.chip-toggle {
  font-family: 'Open Sans', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 20px;
  border: 2px solid var(--gris-borde);
  background: var(--blanco);
  color: var(--gris-texto);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, color 0.2s;
}
.chip-toggle:hover { border-color: var(--naranja-claro); }
.chip-toggle.activo {
  background: var(--naranja);
  border-color: var(--naranja);
  color: var(--blanco);
}
.campo-ayuda { font-size: 0.78rem; color: #999; }
.contador-alcaldias {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.8rem;
}
.contador-alcaldias.incompleto { color: var(--naranja-oscuro); }
.contador-alcaldias.completo { color: var(--verde-ok); }

.card-datos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  font-size: 0.86rem;
}
.card-dato { display: flex; flex-direction: column; gap: 2px; }
.card-dato .lbl { color: #999; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.04em; }
.card-dato .val { font-weight: 600; color: var(--gris-texto); }

.card-desc { font-size: 0.88rem; color: #666; line-height: 1.6; }

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--gris-borde);
}

.estrellas { font-size: 0.95rem; letter-spacing: 3px; }
.estrellas i { color: var(--naranja); }
.estrellas i.fa-regular { color: #E4DCD3; }

/* ── ESTADO VACÍO ── */
.empty-state {
  text-align: center;
  padding: 60px 24px;
  color: #999;
}
.empty-state .icono { font-size: 2.6rem; margin-bottom: 14px; color: var(--naranja); }
.empty-state h3 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  color: var(--gris-texto);
  margin-bottom: 8px;
}

/* ── PANTALLA PRINCIPAL DE MATCHES (index.html) ── */
.sin-solicitud, .sin-matches {
  text-align: center;
  padding: 60px 24px;
  color: #999;
}
.sin-solicitud i, .sin-matches i { font-size: 2.6rem; margin-bottom: 14px; color: var(--naranja); display: block; }
.sin-solicitud p, .sin-matches p { margin-bottom: 6px; }
.sin-solicitud .btn-app-naranja { margin-top: 18px; }

.resumen-solicitud-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  background: #FFF6EE;
  border: 1px solid #FFE0C4;
  border-radius: 14px;
  padding: 16px 20px;
  margin-bottom: 24px;
}
.resumen-solicitud-texto {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--naranja-oscuro);
  font-size: 0.9rem;
}
.resumen-solicitud-texto i { font-size: 1.1rem; flex-shrink: 0; }

/* ── FORMULARIOS ── */
.form-card {
  background: var(--blanco);
  border-radius: 18px;
  box-shadow: 0 2px 16px rgba(244,121,32,0.10);
  border: 1px solid var(--gris-borde);
  padding: 32px;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }
.form-full { grid-column: 1 / -1; }
.form-acciones {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--gris-borde);
}
.mensaje-form {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 12px 16px;
  border-radius: 10px;
  margin-bottom: 18px;
}
.mensaje-form.exito { background: #EAF9EE; color: var(--verde-ok); }
.mensaje-form.error { background: #FDEEEC; color: var(--rojo-error); }

/* Advertencia de Jornada Ampliada (registro de solicitud y tarjetas de match) */
.alerta-jornada {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: #FFF6EE;
  border-left: 4px solid #F47920;
  border-radius: 8px;
  padding: 14px 16px;
  color: #D4620A;
  font-size: 0.92rem;
  line-height: 1.6;
}
.alerta-jornada i {
  color: #F47920;
  margin-top: 2px;
  flex-shrink: 0;
}

/* ── MODAL (login, etc.) ── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(26,26,26,.6);
  display: none;
  align-items: center; justify-content: center;
  z-index: 9100; padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal-card {
  background: var(--blanco);
  width: 100%; max-width: 420px;
  border-radius: 18px;
  max-height: 88vh; overflow-y: auto;
  position: relative;
  box-shadow: 0 12px 40px rgba(0,0,0,.35);
  padding: 34px 30px;
}
.modal-close {
  position: absolute; top: 14px; right: 14px;
  background: #F5F5F5; border: none; border-radius: 50%;
  width: 32px; height: 32px; font-size: 18px; font-weight: 700;
  color: #555; cursor: pointer; line-height: 1;
  display: flex; align-items: center; justify-content: center;
}
.modal-card h2 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--gris-texto);
  margin-bottom: 8px;
  text-align: center;
}
.modal-card .sub { text-align: center; color: #888; font-size: 0.88rem; margin-bottom: 22px; }
.modal-card form { display: flex; flex-direction: column; gap: 14px; }

/* ── TABS ── */
.tabs {
  display: flex;
  gap: 6px;
  border-bottom: 2px solid var(--gris-borde);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.tab-btn {
  background: none; border: none; cursor: pointer;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700; font-size: 0.88rem;
  color: #999;
  padding: 12px 18px;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: color 0.2s, border-color 0.2s;
}
.tab-btn.activo { color: var(--naranja-oscuro); border-color: var(--naranja); }
.tab-btn .contador-mini {
  display: inline-block; min-width: 18px; padding: 1px 5px; margin-left: 6px;
  border-radius: 10px; background: var(--rojo-error); color: var(--blanco);
  font-size: 0.68rem; font-weight: 700;
}

/* ── MENSAJERÍA: layout de dos paneles (bandeja + chat) ── */
.chat-layout {
  display: flex;
  background: var(--blanco);
  border-radius: 18px;
  box-shadow: 0 2px 16px rgba(244,121,32,0.10);
  border: 1px solid var(--gris-borde);
  overflow: hidden;
  height: 72vh;
  min-height: 460px;
}

/* ── Bandeja: lista de conversaciones ── */
.chat-lista { width: 320px; flex-shrink: 0; border-right: 1px solid var(--gris-borde); overflow-y: auto; }
.conversacion-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px 18px;
  border-bottom: 1px solid var(--gris-borde);
  cursor: pointer;
  transition: background 0.15s;
}
.conversacion-item:hover { background: #FFFBF7; }
.conversacion-item.activa { background: #FFF6EE; }
.conversacion-item.no-leida { background: #FFFBF7; }
.conversacion-avatar {
  width: 42px; height: 42px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, var(--naranja), var(--naranja-claro));
  color: var(--blanco); display: flex; align-items: center; justify-content: center;
  font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 1rem;
}
.conversacion-body { flex: 1; min-width: 0; }
.conversacion-top { display: flex; justify-content: space-between; gap: 8px; align-items: baseline; }
.conversacion-nombre {
  font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 0.9rem;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.conversacion-fecha { font-size: 0.72rem; color: #999; white-space: nowrap; flex-shrink: 0; }
.conversacion-materia { font-size: 0.75rem; color: #999; margin-top: 1px; }
.conversacion-ultimo {
  font-size: 0.85rem; color: #666; margin-top: 3px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.conversacion-item.no-leida .conversacion-ultimo { color: var(--gris-texto); font-weight: 600; }
.conversacion-badge {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 20px; height: 20px; padding: 0 6px; border-radius: 10px;
  background: var(--naranja); color: var(--blanco);
  font-size: 0.7rem; font-weight: 700; flex-shrink: 0;
}

/* ── Panel de chat ── */
.chat-panel { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.chat-header {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 18px; border-bottom: 1px solid var(--gris-borde);
  flex-shrink: 0;
}
.chat-header-volver {
  background: none; border: none; cursor: pointer; color: var(--naranja-oscuro);
  font-size: 1.1rem; padding: 4px; display: none; align-items: center; justify-content: center;
}
.chat-header-avatar {
  width: 38px; height: 38px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, var(--naranja), var(--naranja-claro));
  color: var(--blanco); display: flex; align-items: center; justify-content: center;
  font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 0.9rem;
}
.chat-header-info { min-width: 0; }
.chat-header-nombre {
  font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 0.95rem;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.chat-header-materia { font-size: 0.78rem; color: #999; }

.chat-container { display: flex; flex-direction: column; height: 100%; min-height: 0; }
.chat-mensajes { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 10px; }

.burbuja-fila { display: flex; flex-direction: column; max-width: 75%; }
.burbuja-fila.mia { align-self: flex-end; align-items: flex-end; }
.burbuja-fila.otro { align-self: flex-start; align-items: flex-start; }

.burbuja {
  max-width: 100%;
  padding: 10px 14px;
  border-radius: 18px;
  font-size: 0.92rem;
  line-height: 1.5;
  word-break: break-word;
  white-space: pre-wrap;
}
.burbuja.recibido { background: #F0F0F0; color: var(--gris-texto); border-bottom-left-radius: 4px; }
.burbuja.enviado { background: #F47920; color: white; border-bottom-right-radius: 4px; margin-left: auto; }
.burbuja-hora { font-size: 0.7rem; color: #aaa; margin-top: 3px; padding: 0 4px; }

.chat-input {
  display: flex; gap: 10px; padding: 12px 16px;
  border-top: 1px solid #F0E8E0; background: white;
  flex-shrink: 0;
}
.chat-input input {
  flex: 1; border: 1px solid #ddd; border-radius: 50px;
  padding: 10px 16px; font-size: 0.95rem; outline: none;
}
.chat-input input:focus { border-color: #F47920; }
.chat-input button {
  background: #F47920; color: white; border: none;
  border-radius: 50%; width: 42px; height: 42px;
  cursor: pointer; transition: background 0.2s;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.chat-input button:hover { background: #D4620A; }
.chat-input button:disabled { opacity: 0.5; cursor: not-allowed; }

.chat-vacio {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
  color: #aaa; text-align: center; padding: 40px;
}
.chat-vacio i { font-size: 2.4rem; margin-bottom: 12px; color: var(--gris-borde); }

.chat-cargando {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 40px;
  color: #F47920;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.95rem;
}

@media (max-width: 780px) {
  .chat-layout { height: calc(100vh - 260px); min-height: 420px; border-radius: 12px; }
  .chat-lista { width: 100%; }
  .chat-header-volver { display: inline-flex; }
  .chat-panel { display: none; }
  .chat-layout.mostrando-chat .chat-lista { display: none; }
  .chat-layout.mostrando-chat .chat-panel { display: flex; }
}

/* ── ADMIN ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 18px;
  margin-bottom: 32px;
}
.stat-card {
  background: var(--blanco);
  border: 1px solid var(--gris-borde);
  border-radius: 16px;
  padding: 22px;
  text-align: center;
}
.stat-card .num {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: 2.1rem;
  color: var(--naranja);
}
.stat-card .lbl {
  font-size: 0.8rem;
  color: #888;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 4px;
}
.tabla {
  width: 100%;
  border-collapse: collapse;
  background: var(--blanco);
  border-radius: 14px;
  overflow: hidden;
  font-size: 0.86rem;
}
.tabla th {
  background: var(--gris-suave);
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  text-align: left;
  padding: 12px 14px;
  color: #777;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.tabla td { padding: 12px 14px; border-top: 1px solid var(--gris-borde); vertical-align: middle; }
.tabla-wrap { overflow-x: auto; border: 1px solid var(--gris-borde); border-radius: 14px; }
.tabla-wrap .tabla { border-radius: 0; }

/* ── TOAST ── */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--gris-texto);
  color: var(--blanco);
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.88rem;
  padding: 14px 26px;
  border-radius: 50px;
  box-shadow: 0 8px 28px rgba(0,0,0,0.25);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 9500;
  max-width: 90vw;
  text-align: center;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.exito { background: var(--verde-ok); }
.toast.error { background: var(--rojo-error); }

/* ── SPINNER ── */
.spinner {
  width: 16px; height: 16px;
  border: 2.5px solid rgba(255,255,255,0.4);
  border-top-color: var(--blanco);
  border-radius: 50%;
  animation: girar 0.7s linear infinite;
}
.btn-outline .spinner, .btn-danger .spinner { border-color: rgba(244,121,32,0.3); border-top-color: var(--naranja); }
@keyframes girar { to { transform: rotate(360deg); } }

/* ── FOOTER ── */
footer {
  background: var(--naranja);
  color: rgba(255,255,255,0.88);
  text-align: center;
  padding: 26px 24px;
  font-size: 0.82rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: 500;
  flex-shrink: 0;
}
footer strong { color: var(--blanco); font-weight: 700; }

/* ── BOTÓN VOLVER ARRIBA ── */
#btn-top {
  position: fixed;
  bottom: 32px;
  right: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--naranja), var(--naranja-claro));
  color: var(--blanco);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(244,121,32,0.45);
  opacity: 0;
  transform: translateY(16px) scale(0.85);
  transition: opacity 0.35s ease, transform 0.35s ease, box-shadow 0.25s ease;
  pointer-events: none;
  z-index: 999;
}
#btn-top.visible { opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }
#btn-top:hover { box-shadow: 0 8px 28px rgba(244,121,32,0.60); transform: translateY(-3px) scale(1.08); }
#btn-top:active { transform: scale(0.95); }
#btn-top i { transition: transform 0.2s ease; font-size: 1.05rem; }
#btn-top:hover i { transform: translateY(-2px); }

/* ── UTILIDADES ── */
.oculto { display: none !important; }
.texto-centro { text-align: center; }
.gap-8 { display: flex; gap: 8px; }

/* ── ADMIN: layout de panel con menú lateral ── */
.admin-shell {
  display: flex;
  align-items: flex-start;
  gap: 24px;
}
.admin-sidebar {
  width: 230px;
  flex-shrink: 0;
  background: var(--blanco);
  border: 1px solid var(--gris-borde);
  border-radius: 16px;
  padding: 12px;
  position: sticky;
  top: 20px;
}
.admin-sidebar-link {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  padding: 12px 14px;
  border-radius: 12px;
  margin-bottom: 4px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.88rem;
  color: #777;
  transition: background 0.2s, color 0.2s;
}
.admin-sidebar-link i { width: 18px; text-align: center; color: var(--naranja); flex-shrink: 0; }
.admin-sidebar-link:hover { background: #FFF6EE; color: var(--naranja-oscuro); }
.admin-sidebar-link.activo { background: var(--naranja); color: var(--blanco); }
.admin-sidebar-link.activo i { color: var(--blanco); }
.admin-sidebar-link .contador-mini { margin-left: auto; }
.admin-sidebar-link.activo .contador-mini { background: rgba(255,255,255,0.3); }
.admin-content { flex: 1; min-width: 0; }
.admin-vista-titulo {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.2rem;
  margin-bottom: 16px;
}

@media (max-width: 860px) {
  .admin-shell { flex-direction: column; }
  .admin-sidebar {
    width: 100%;
    position: static;
    display: flex;
    gap: 4px;
    overflow-x: auto;
    padding: 8px;
  }
  .admin-sidebar-link { flex-direction: column; gap: 4px; white-space: nowrap; margin-bottom: 0; }
  .admin-sidebar-link .contador-mini { margin-left: 0; }
}

/* ── ADMIN: paginación ── */
.paginacion {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 20px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  color: #888;
}

/* ── ADMIN: visor de conversaciones (reutiliza .chat-layout / .burbuja) ── */
.burbuja-remitente {
  font-size: 0.68rem;
  font-weight: 700;
  color: #999;
  padding: 0 4px;
  margin-bottom: 2px;
}
.link-borrar {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--rojo-error);
  font-size: 0.7rem;
  font-weight: 600;
  text-decoration: underline;
  padding: 0;
}