/* =============================================================================
   Interlearning AI — app.css
   Estilos de la aplicación. Hereda los tokens de ../styles.css.
   ============================================================================= */

.app-body {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}

/* =============================================================
   Barra superior
   ============================================================= */
.app-bar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 1rem;
  padding: .85rem var(--pad);
  background: rgba(8, 8, 11, .9);
  border-bottom: 1px solid var(--line-2);
  backdrop-filter: blur(14px) saturate(140%);
}
@supports not (backdrop-filter: blur(4px)) { .app-bar { background: rgba(8,8,11,.98); } }

.app-contexto { display: flex; gap: .6rem; margin-left: auto; }

.app-select { display: grid; gap: .2rem; }
.app-select > span {
  font-family: var(--mono);
  font-size: .58rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--mute-2);
}
.app-select select {
  appearance: none;
  padding: .42rem 1.6rem .42rem .7rem;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--bg-3) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%2390909F' stroke-width='1.4' fill='none'/%3E%3C/svg%3E") no-repeat right .6rem center;
  color: var(--ink);
  font: inherit;
  font-size: .84rem;
  cursor: pointer;
  max-width: 42vw;
  text-overflow: ellipsis;
}
.app-select select:focus { outline: none; border-color: var(--accent); }
.app-select--corto select { max-width: 5.5rem; }

.app-menu-btn {
  padding: .45rem .85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: .78rem;
  color: var(--ink-2);
}
@media (min-width: 960px) { .app-menu-btn { display: none; } }

/* =============================================================
   Pestañas de módulo
   ============================================================= */
.app-tabs {
  position: sticky; top: 61px; z-index: 35;
  display: flex; gap: .25rem;
  padding: .5rem var(--pad);
  background: var(--bg-2);
  border-bottom: 1px solid var(--line-2);
  overflow-x: auto;
  scrollbar-width: none;
}
.app-tabs::-webkit-scrollbar { display: none; }

.app-tab {
  display: inline-flex; align-items: baseline; gap: .5rem;
  padding: .5rem .95rem;
  border-radius: 999px;
  white-space: nowrap;
  font-size: .87rem;
  color: var(--mute);
  transition: background .3s var(--ease-out), color .3s var(--ease-out);
}
.app-tab i {
  font-family: var(--mono); font-style: normal;
  font-size: .6rem; letter-spacing: .1em; color: var(--mute-2);
}
.app-tab:hover { color: var(--ink); background: rgba(250,250,250,.05); }
.app-tab.is-on { background: var(--ink); color: #06060B; font-weight: 500; }
.app-tab.is-on i { color: rgba(6,6,11,.5); }

/* =============================================================
   Rejilla
   ============================================================= */
.app-layout { flex: 1; display: grid; }
@media (min-width: 960px) { .app-layout { grid-template-columns: 288px 1fr; } }

/* =============================================================
   Lateral
   ============================================================= */
.app-lateral {
  display: none;
  padding: 1.4rem var(--pad);
  border-right: 1px solid var(--line-2);
  background: var(--bg-2);
}
.app-lateral.is-open { display: block; }
@media (min-width: 960px) {
  .app-lateral {
    display: block;
    position: sticky; top: 110px;
    align-self: start;
    max-height: calc(100svh - 110px);
    overflow-y: auto;
    padding-inline: 1.4rem;
  }
}

.app-lateral-titulo {
  font-family: var(--mono);
  font-size: .6rem;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--mute-2);
  margin-bottom: .9rem;
}

.app-hint { font-size: .84rem; color: var(--mute-2); }

.app-tema-grupo { margin-bottom: 1.3rem; }
.app-tema-grupo > h3 {
  font-size: .88rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: .5rem;
}
.app-subtemas { display: grid; gap: 1px; }
.app-subtema {
  width: 100%;
  text-align: left;
  padding: .45rem .6rem;
  border-radius: 7px;
  font-size: .82rem;
  color: var(--mute);
  line-height: 1.4;
  transition: background .25s var(--ease-out), color .25s var(--ease-out);
}
.app-subtema:hover { background: rgba(250,250,250,.05); color: var(--ink); }
.app-subtema.is-on { background: var(--accent-soft); color: var(--accent); }
.app-subtema.is-visto::after {
  content: "✓";
  float: right;
  color: var(--ok);
  font-size: .78rem;
}

.app-progreso {
  margin-top: 1.8rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line-2);
}
.app-progreso-lista { display: grid; gap: .4rem; margin-bottom: .9rem; }
.app-progreso-lista li {
  display: flex; justify-content: space-between; gap: .7rem;
  font-size: .8rem; color: var(--mute);
}
.app-progreso-lista b {
  font-family: var(--mono); font-weight: 500;
  font-size: .76rem; color: var(--accent);
}
.app-link-btn {
  font-size: .76rem;
  color: var(--mute-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.app-link-btn:hover { color: var(--err); }

/* =============================================================
   Panel principal
   ============================================================= */
.app-panel {
  padding: clamp(1.5rem, 4vw, 2.6rem) var(--pad) 4rem;
  max-width: 900px;
  width: 100%;
}

.app-modulo { display: none; }
.app-modulo.is-on { display: block; }

.app-modulo-head { margin-bottom: 1.8rem; }
.app-modulo-head h1 {
  font-size: clamp(1.5rem, 3.6vw, 2.1rem);
  font-weight: 600;
  margin-bottom: .6rem;
}
.app-modulo-head p { font-size: .95rem; color: var(--mute); max-width: 62ch; }

/* Formularios de módulo */
.app-form {
  display: flex; flex-wrap: wrap; gap: 1rem; align-items: end;
  padding: 1.2rem;
  border: 1px solid var(--line-2);
  border-radius: var(--r);
  background: var(--bg-card);
  margin-bottom: 1.8rem;
}
.app-form .field { flex: 1 1 200px; }
.app-form--ancho { display: grid; }
.app-form--ancho .field { flex: none; }
.app-form-pie {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap;
}
.app-contador { font-family: var(--mono); font-size: .7rem; color: var(--mute-2); }

/* =============================================================
   Salida generada
   ============================================================= */
.app-salida {
  min-height: 120px;
  font-size: .97rem;
  line-height: 1.72;
  color: var(--ink-2);
}
.app-vacio, .app-error {
  padding: 2.2rem 0;
  color: var(--mute-2);
  font-size: .9rem;
}
.app-error { color: var(--err); }

.app-salida h1, .app-salida h2, .app-salida h3 { color: var(--ink); }
.app-salida h1 { font-size: 1.5rem; margin: 2rem 0 .9rem; }
.app-salida h2 {
  font-size: 1.16rem;
  margin: 2.1rem 0 .8rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line-2);
}
.app-salida h2:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.app-salida h3 { font-size: 1rem; margin: 1.5rem 0 .5rem; }
.app-salida p { margin-bottom: 1rem; }
.app-salida strong { color: var(--ink); font-weight: 600; }
.app-salida em { color: var(--ink); font-style: italic; }
.app-salida hr { border: 0; border-top: 1px solid var(--line); margin: 2.2rem 0; }
.app-salida ul, .app-salida ol { margin: 0 0 1.2rem; display: grid; gap: .45rem; }
.app-salida li { padding-left: 1.3rem; position: relative; }
.app-salida ul li::before {
  content: ""; position: absolute; left: 0; top: .68em;
  width: 7px; height: 2px; background: var(--accent);
}
.app-salida ol { counter-reset: n; }
.app-salida ol li { counter-increment: n; }
.app-salida ol li::before {
  content: counter(n) ".";
  position: absolute; left: 0; top: 0;
  font-family: var(--mono); font-size: .74rem; color: var(--accent);
}
.app-salida code {
  font-family: var(--mono);
  font-size: .86em;
  background: var(--bg-3);
  border: 1px solid var(--line-2);
  border-radius: 5px;
  padding: .1em .35em;
  color: var(--ink);
}
.app-salida pre {
  background: var(--bg-3);
  border: 1px solid var(--line-2);
  border-radius: var(--r);
  padding: 1rem 1.15rem;
  overflow-x: auto;
  margin-bottom: 1.2rem;
}
.app-salida pre code { background: none; border: 0; padding: 0; font-size: .84rem; }
.app-salida blockquote {
  border-left: 2px solid var(--accent);
  padding-left: 1rem;
  margin: 0 0 1.2rem;
  color: var(--mute);
}

/* Cursor de escritura mientras genera */
.app-salida.is-generando > :last-child::after {
  content: "";
  display: inline-block;
  width: 8px; height: 1.05em;
  margin-left: 2px;
  vertical-align: -.16em;
  background: var(--accent);
  animation: cursorParpadeo 1s steps(2) infinite;
}
@keyframes cursorParpadeo { 50% { opacity: 0; } }

.app-pensando {
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: var(--mono);
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--mute-2);
  padding: 1.6rem 0;
}
.app-pensando::before {
  content: "";
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.6s var(--ease-soft) infinite;
}

.app-acciones {
  display: flex; flex-wrap: wrap; gap: .5rem;
  margin-top: 2rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line-2);
}
.app-accion {
  padding: .45rem .9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: .78rem;
  color: var(--mute);
  transition: color .3s var(--ease-out), border-color .3s var(--ease-out);
}
.app-accion:hover { color: var(--accent); border-color: var(--accent); }

/* =============================================================
   Chat del asistente de tema
   ============================================================= */
.app-trabajo { display: flex; gap: .5rem; margin-bottom: 1.4rem; }

.app-chat {
  display: grid; gap: 1rem;
  padding: 1.3rem;
  border: 1px solid var(--line-2);
  border-radius: var(--r);
  background: var(--bg-2);
  min-height: 260px;
  max-height: 60svh;
  overflow-y: auto;
  margin-bottom: 1rem;
}
.app-burbuja {
  max-width: 90%;
  padding: .85rem 1.1rem;
  border-radius: 14px;
  font-size: .93rem;
  line-height: 1.65;
}
.app-burbuja p { margin-bottom: .7rem; }
.app-burbuja p:last-child { margin-bottom: 0; }
.app-burbuja--ia {
  background: var(--bg-card);
  border: 1px solid var(--line-2);
  color: var(--ink-2);
  justify-self: start;
}
.app-burbuja--yo {
  background: var(--accent-soft);
  border: 1px solid rgba(0, 229, 255, .25);
  color: var(--ink);
  justify-self: end;
}
.app-burbuja strong { color: var(--ink); font-weight: 600; }
.app-burbuja ul, .app-burbuja ol { display: grid; gap: .3rem; margin: .5rem 0 .8rem; }
.app-burbuja li { padding-left: 1.1rem; position: relative; }
.app-burbuja li::before {
  content: ""; position: absolute; left: 0; top: .65em;
  width: 6px; height: 2px; background: var(--accent);
}

.app-chat-form { display: flex; gap: .7rem; align-items: end; }
.app-chat-form textarea {
  flex: 1;
  padding: .7rem .9rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg-3);
  color: var(--ink);
  font: inherit;
  font-size: .92rem;
  resize: vertical;
}
.app-chat-form textarea:focus { outline: none; border-color: var(--accent); }

/* =============================================================
   Aviso legal permanente
   ============================================================= */
.app-aviso {
  margin-top: 3.5rem;
  padding-top: 1.3rem;
  border-top: 1px solid var(--line-2);
  font-size: .76rem;
  color: var(--mute-2);
  max-width: 76ch;
  line-height: 1.6;
}

/* =============================================================
   Movimiento reducido
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  .app-salida.is-generando > :last-child::after { animation: none; }
}