/* ============================================================================
   Monai · base.css — reset, tipografía, shell de la aplicación
   ========================================================================= */

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: var(--t-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-wrap: pretty;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 650;
  letter-spacing: -0.015em;
  margin: 0;
  line-height: 1.2;
  text-wrap: balance;
}
h1 { font-size: var(--t-h1); }
h2 { font-size: var(--t-h2); }
h3 { font-size: var(--t-h3); }
p { margin: 0; }

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

button, input, select, textarea { font: inherit; color: inherit; }

:focus-visible {
  outline: var(--focus-ring) solid var(--primary);
  outline-offset: 2px;
  border-radius: var(--r-xs);
}

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------------------------------------------------------------------------
   Shell: sidebar + topbar + main  (desktop)  →  topbar + bottom nav (móvil)
   ------------------------------------------------------------------------ */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  min-height: 100dvh;
}

/* --- Sidebar --------------------------------------------------------------- */
.sidebar {
  position: sticky;
  top: 0;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
  padding: var(--s-4) var(--s-3);
  background: var(--surface);
  border-right: 1px solid var(--border);
  overflow-y: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-2) var(--s-3) var(--s-4);
  text-decoration: none;
  color: var(--fg);
}
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border-radius: var(--r-sm);
  background: var(--primary);
  color: var(--on-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  flex: none;
}
.brand-name {
  font-family: var(--font-display);
  font-weight: 680;
  font-size: 18px;
  letter-spacing: -0.02em;
}
.brand-mode {
  font-size: var(--t-xs);
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nav-group-label {
  font-size: var(--t-xs);
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
  padding: var(--s-4) var(--s-3) var(--s-2);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  min-height: 44px;
  padding: 0 var(--s-3);
  border-radius: var(--r-full);
  color: var(--fg);
  font-size: 14.5px;
  font-weight: 500;
  transition: background var(--dur-1) var(--ease-std);
}
.nav-item:hover { background: var(--surface-2); text-decoration: none; }
.nav-item[aria-current='page'] {
  background: var(--primary-container);
  color: var(--on-primary-container);
  font-weight: 640;
}
.nav-item .ico { flex: none; opacity: 0.85; }
.nav-item .tail {
  margin-left: auto;
  font-size: var(--t-xs);
  font-weight: 700;
  color: var(--muted);
}

.sidebar-foot { margin-top: auto; padding-top: var(--s-4); }

/* --- Topbar ---------------------------------------------------------------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  flex-wrap: wrap;      /* en 360px las acciones bajan una línea en vez de desbordar */
  gap: var(--s-3);
  min-height: var(--topbar-h);
  padding: var(--s-2) clamp(12px, 2.5vw, 28px);
  background: color-mix(in oklab, var(--bg) 82%, transparent);
  backdrop-filter: saturate(1.6) blur(12px);
  border-bottom: 1px solid var(--border);
}
.topbar h1 { font-size: var(--t-h2); overflow-wrap: anywhere; }
.topbar > div { min-width: 0; }
.topbar-sub {
  font-size: var(--t-sm);
  color: var(--muted);
  overflow-wrap: anywhere;
}
.topbar-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--s-2);
}

/* --- Main ------------------------------------------------------------------ */
.main { min-width: 0; display: flex; flex-direction: column; }
.content {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--s-6) clamp(12px, 2.5vw, 28px) var(--s-16);
  display: flex;
  flex-direction: column;
  gap: var(--s-6);
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--s-4);
  flex-wrap: wrap;
}
.section-head p { color: var(--muted); font-size: var(--t-sm); }

/* --- Bottom nav (móvil) ---------------------------------------------------- */
.bottomnav {
  display: none;
  position: fixed;
  inset: auto 0 0 0;
  z-index: 40;
  height: calc(var(--bottomnav-h) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  background: color-mix(in oklab, var(--surface) 92%, transparent);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--border);
}
.bottomnav-inner {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  height: var(--bottomnav-h);
}
.bnav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  min-height: 48px;
  padding: 0 2px;
  color: var(--muted);
  font-size: 10.5px;
  font-weight: 600;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.bnav-item:hover { text-decoration: none; }
.bnav-item[aria-current='page'] { color: var(--primary); }
.bnav-item[aria-current='page'] .ico-wrap {
  background: var(--primary-container);
  color: var(--on-primary-container);
}
.ico-wrap {
  display: grid; place-items: center;
  width: 46px; height: 26px;
  border-radius: var(--r-full);
  transition: background var(--dur-1) var(--ease-std);
}

/* ---------------------------------------------------------------------------
   Responsive
   ------------------------------------------------------------------------ */
@media (max-width: 1023px) {
  .app { grid-template-columns: minmax(0, 1fr); }
  .sidebar { display: none; }
  .bottomnav { display: block; }
  .content { padding-bottom: calc(var(--bottomnav-h) + 40px); }
}

@media (max-width: 560px) {
  .topbar { min-height: 56px; }
  .content { gap: var(--s-5); padding-top: var(--s-4); }
}

/* ---------------------------------------------------------------------------
   Modo full screen — la app oculta cromo secundario y gana densidad
   ------------------------------------------------------------------------ */
:root[data-fullscreen='on'] .sidebar { display: none; }
:root[data-fullscreen='on'] .app { grid-template-columns: minmax(0, 1fr); }
:root[data-fullscreen='on'] .content { max-width: none; }

/* ---------------------------------------------------------------------------
   Gating por modo de uso (fácil / medio / avanzado)
   Un elemento con data-mode="medio avanzado" sólo se ve en esos modos.
   ------------------------------------------------------------------------ */
:root[data-mode='facil'] [data-mode]:not([data-mode~='facil']) { display: none !important; }
:root[data-mode='medio'] [data-mode]:not([data-mode~='medio']) { display: none !important; }
:root[data-mode='avanzado'] [data-mode]:not([data-mode~='avanzado']) { display: none !important; }

/* ---------------------------------------------------------------------------
   Accesibilidad de movimiento
   ------------------------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}