/* ============================================================
   navigation.css — Controles, sidebar, progreso, contador
   ============================================================ */

/* ---- Barra de progreso ---- */
.progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: rgba(255,255,255,.06);
  z-index: 40;
}
.progress__bar {
  display: block;
  height: 100%;
  width: 0;
  background: var(--grad-main);
  box-shadow: 0 0 12px rgba(0,212,255,.6);
  transition: width .5s var(--ease);
}

/* ---- Controles inferiores ---- */
.controls {
  position: fixed;
  bottom: clamp(0.8rem, 2vh, 1.4rem);
  left: 50%;
  transform: translateX(-50%);
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem;
  border-radius: 999px;
  background: rgba(10,15,28,.72);
  border: 1px solid var(--stroke);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-soft);
}
.ctrl {
  width: 42px; height: 42px;
  display: grid; place-items: center;
  border-radius: 999px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-dim);
  font-size: 0.95rem;
  transition: background .2s, color .2s, border-color .2s, transform .15s;
}
.ctrl:hover { background: var(--glass-strong); color: var(--white); border-color: var(--stroke); }
.ctrl:active { transform: scale(0.92); }
.ctrl:disabled { opacity: 0.3; cursor: not-allowed; }

.ctrl--accent {
  width: auto;
  padding: 0 1rem;
  gap: 0.5rem;
  background: var(--grad-main);
  color: #05121f;
  font-family: "Sora"; font-weight: 700; font-size: 0.85rem;
}
.ctrl--accent:hover { color: #05121f; filter: brightness(1.08); box-shadow: var(--glow-cyan); }
.ctrl__label { white-space: nowrap; }
@media (max-width: 620px) { .ctrl__label { display: none; } .ctrl--accent { padding: 0; width: 42px; } }

.counter {
  font-family: "Sora"; font-weight: 600;
  font-size: 0.82rem;
  color: var(--text-dim);
  padding: 0 0.5rem;
  min-width: 62px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.ctrl-sep {
  width: 1px;
  align-self: stretch;
  margin: 0.3rem 0.15rem;
  background: var(--stroke);
}

/* ---- Switch de idioma ES / EN ---- */
.langswitch {
  position: relative;
  display: inline-flex;
  padding: 3px;
  border-radius: 999px;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--stroke);
}
.langswitch__thumb {
  position: absolute;
  top: 3px; left: 3px;
  width: calc(50% - 3px);
  height: calc(100% - 6px);
  border-radius: 999px;
  background: var(--grad-main);
  box-shadow: 0 2px 10px rgba(0,212,255,.35);
  transition: transform .3s var(--ease);
}
.langswitch[data-active="en"] .langswitch__thumb { transform: translateX(100%); }
.langswitch__btn {
  position: relative;
  z-index: 1;
  min-width: 38px;
  padding: 0.35rem 0.2rem;
  border: none; background: transparent;
  font-family: "Sora"; font-weight: 700; font-size: 0.78rem;
  color: var(--text-dim);
  transition: color .25s;
}
.langswitch__btn.is-active { color: #05121f; }

/* ---- Menú de exportación ---- */
.export { position: relative; }
.export__chev { font-size: 0.7rem; transition: transform .3s var(--ease); opacity: .8; }
.export.is-open .export__chev { transform: rotate(180deg); }

.export__menu {
  position: absolute;
  bottom: calc(100% + 12px);
  right: 0;
  width: 290px;
  padding: 0.5rem;
  border-radius: var(--r-md);
  background: rgba(14,20,36,.96);
  border: 1px solid var(--stroke);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(10px) scale(0.98);
  transform-origin: bottom right;
  pointer-events: none;
  transition: opacity .25s var(--ease), transform .25s var(--ease);
}
.export.is-open .export__menu { opacity: 1; transform: none; pointer-events: auto; }
.export__head {
  padding: 0.5rem 0.6rem 0.6rem;
  font-family: "Sora"; font-weight: 600; font-size: 0.72rem;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-faint);
}
.export__item {
  display: flex; align-items: center; gap: 0.8rem;
  width: 100%; text-align: left;
  padding: 0.65rem 0.6rem;
  border-radius: var(--r-sm);
  background: transparent; border: 1px solid transparent;
  transition: background .2s, border-color .2s, transform .15s;
}
.export__item:hover { background: var(--glass-strong); border-color: var(--stroke); }
.export__item:active { transform: scale(0.99); }
.export__ico {
  width: 40px; height: 40px; flex: 0 0 auto;
  display: grid; place-items: center;
  border-radius: 11px; font-size: 1.15rem;
}
.export__ico--pdf { color: #ff6b6b; background: rgba(255,107,107,.12); border: 1px solid rgba(255,107,107,.3); }
.export__ico--ppt { color: #ff9f43; background: rgba(255,159,67,.12); border: 1px solid rgba(255,159,67,.3); }
.export__ico--ppt-edit { color: var(--cyan); background: rgba(0,212,255,.12); border: 1px solid rgba(0,212,255,.3); }
.export__txt { display: flex; flex-direction: column; gap: 1px; line-height: 1.25; }
.export__txt strong { font-family: "Sora"; font-weight: 600; font-size: 0.9rem; color: var(--text); }
.export__txt em { font-style: normal; font-size: 0.75rem; color: var(--text-faint); }

/* ---- Overlay de progreso de exportación ---- */
.export-overlay {
  position: fixed; inset: 0; z-index: 80;
  display: grid; place-items: center;
  background: rgba(5,9,18,.78);
  backdrop-filter: blur(6px);
}
.export-overlay[hidden] { display: none; }
.export-overlay__card {
  width: min(380px, 86vw);
  padding: 2rem 1.8rem;
  border-radius: var(--r-lg);
  background: var(--bg-soft);
  border: 1px solid var(--stroke);
  box-shadow: var(--shadow);
  text-align: center;
}
.export-overlay__spinner {
  width: 64px; height: 64px; margin: 0 auto 1.2rem;
  display: grid; place-items: center;
  border-radius: 50%;
  font-size: 1.6rem; color: var(--white);
  background: var(--grad-main);
  box-shadow: var(--glow-cyan);
  animation: pulseSpin 1.4s var(--ease) infinite;
}
@keyframes pulseSpin { 50% { transform: scale(1.08) rotate(8deg); box-shadow: var(--glow-violet); } }
.export-overlay__title { font-family: "Sora"; font-weight: 700; font-size: 1.15rem; }
.export-overlay__bar {
  height: 8px; margin: 1rem 0 0.6rem;
  border-radius: 999px; overflow: hidden;
  background: rgba(255,255,255,.08);
}
.export-overlay__bar span {
  display: block; height: 100%; width: 0%;
  background: var(--grad-main);
  transition: width .3s var(--ease);
}
.export-overlay__hint { color: var(--text-dim); font-size: 0.82rem; }

/* ---- Sidebar ---- */
.sidebar {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: min(340px, 84vw);
  z-index: 60;
  background: rgba(9,13,24,.92);
  border-right: 1px solid var(--stroke);
  backdrop-filter: blur(18px);
  transform: translateX(-102%);
  transition: transform .4s var(--ease);
  display: flex;
  flex-direction: column;
}
.sidebar.is-open { transform: none; }
.sidebar__head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem 1.2rem;
  border-bottom: 1px solid var(--stroke-soft);
}
.sidebar__brand { font-family:"Sora"; font-weight:700; font-size:1.05rem; display:flex; align-items:center; gap:.5rem; }
.sidebar__brand i { color: var(--cyan); }
.sidebar__close {
  width:34px; height:34px; border-radius:8px; background:transparent; border:1px solid transparent;
  color: var(--text-dim); font-size:1rem;
}
.sidebar__close:hover { background: var(--glass-strong); color: var(--white); }

.sidebar__nav { overflow-y: auto; padding: 0.6rem; flex: 1; }
.sidebar__group {
  font-family:"Sora"; font-weight:600; font-size:.68rem; letter-spacing:.14em; text-transform:uppercase;
  color: var(--text-faint); padding: .9rem .7rem .4rem;
}
.side-item {
  display: flex; align-items: center; gap: .7rem;
  width: 100%; text-align: left;
  padding: .55rem .7rem;
  border-radius: 10px;
  background: transparent; border: 1px solid transparent;
  color: var(--text-dim);
  font-size: .88rem;
  transition: background .2s, color .2s;
}
.side-item:hover { background: var(--glass); color: var(--white); }
.side-item.is-current { background: var(--grad-soft); color: var(--white); border-color: var(--stroke); }
.side-item__ico { width: 22px; text-align:center; color: var(--cyan); font-size:.9rem; flex:0 0 auto; }
.side-item__num { margin-left:auto; font-size:.72rem; color: var(--text-faint); font-variant-numeric: tabular-nums; }

.sidebar__scrim {
  position: fixed; inset: 0; z-index: 55;
  background: rgba(3,6,14,.55);
  backdrop-filter: blur(2px);
  opacity: 0; pointer-events: none;
  transition: opacity .35s;
}
.sidebar__scrim.is-open { opacity: 1; pointer-events: auto; }