/* ═══════════════════════════════════════════════════════════════════════
   GymBro — MenteAI (mente.html). Mobile-first, columna máx 520px como el
   portal. Chat con Emi 🧠. Paleta del personaje: acento violeta #a78bfa.
   Base visual heredada de recupera.css/nutri.css.
   ═══════════════════════════════════════════════════════════════════════ */

:root {
  --color-primary: #a78bfa;
  --color-primary-oscuro: #7c3aed;
  --color-accent: #c4b5fd;
  --fondo: #f4f6f9;
  --superficie: #ffffff;
  --oscuro: #0c111d;
  --texto: #1c2434;
  --texto-suave: #5b6577;
  --borde: #e4e7ec;
  --peligro: #dc2626;
  --dorado: #d4a72c;
  --radio: 14px;
  --fuente: "Inter", system-ui, -apple-system, sans-serif;
}

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

/* `hidden` SIEMPRE gana, aunque la clase defina display */
[hidden] { display: none !important; }

html, body { height: 100%; }

body {
  font-family: var(--fuente);
  background: var(--fondo);
  color: var(--texto);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

button, select, textarea, input { font-family: inherit; }

/* ─── Pantalla de bloqueo (sin sesión de socio) ───────────────────────── */
.pantalla-bloqueo {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(800px 400px at 90% -10%, color-mix(in srgb, var(--color-primary) 32%, transparent), transparent 60%),
    var(--oscuro);
  color: #f4f6fa;
  text-align: center;
}
.bloqueo-caja { width: min(400px, 100%); }
.bloqueo-icono { font-size: 3rem; display: block; margin-bottom: 14px; }
.bloqueo-caja h1 { font-size: 1.5rem; font-weight: 900; letter-spacing: -0.02em; margin-bottom: 10px; }
.bloqueo-caja p { color: #b9c1d0; font-size: 0.92rem; margin-bottom: 22px; }
.btn-bloqueo {
  display: inline-block;
  background: var(--color-primary);
  color: #2e1065;
  font-weight: 800;
  text-decoration: none;
  border-radius: 999px;
  padding: 13px 28px;
  font-size: 0.95rem;
  transition: background 0.15s ease;
}
.btn-bloqueo:hover { background: var(--color-accent); }
.bloqueo-nota { font-size: 0.8rem !important; color: #78829a !important; margin-top: 18px !important; }
.bloqueo-nota a { color: var(--color-accent); font-weight: 700; }

/* ─── Shell ───────────────────────────────────────────────────────────── */
.app {
  max-width: 520px;
  margin-inline: auto;
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--fondo);
  box-shadow: 0 0 40px rgba(12, 17, 29, 0.12);
}

.app-header {
  flex: 0 0 auto;
  background: var(--oscuro);
  color: #f4f6fa;
  z-index: 30;
}
.app-header-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
}
.app-volver {
  color: #98a1b3;
  text-decoration: none;
  font-size: 1.25rem;
  padding: 4px 10px;
  border-radius: 8px;
}
.app-volver:hover { background: rgba(255, 255, 255, 0.07); color: #fff; }
.app-avatar-personaje {
  width: 40px; height: 40px;
  flex: 0 0 auto;
  border-radius: 50%;
  overflow: hidden;
  display: inline-grid;
  place-items: center;
  background: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.12);
}
.app-avatar-personaje svg { width: 100%; height: 100%; display: block; }
.app-titulo { flex: 1; min-width: 0; }
.app-titulo strong { display: block; font-size: 1rem; font-weight: 900; letter-spacing: -0.01em; }
.app-titulo small { color: #98a1b3; font-size: 0.74rem; }

/* chip Premium (dorado sutil) */
.chip-premium {
  flex: 0 0 auto;
  background: color-mix(in srgb, var(--dorado) 20%, transparent);
  border: 1px solid color-mix(in srgb, var(--dorado) 55%, transparent);
  color: #ffe6a3;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

/* ─── Main / chat ─────────────────────────────────────────────────────── */
.app-main { flex: 1; min-height: 0; overflow: hidden; }

.vista-chat {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.chat-mensajes {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 18px 16px 8px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.burbuja {
  max-width: 86%;
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 0.9rem;
  line-height: 1.5;
  white-space: pre-wrap;
  word-wrap: break-word;
  animation: burbuja-entra 0.2s ease;
}
@keyframes burbuja-entra {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: none; }
}
.burbuja.bot {
  align-self: flex-start;
  background: var(--superficie);
  border: 1px solid var(--borde);
  border-bottom-left-radius: 5px;
}
.burbuja.usuario {
  align-self: flex-end;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-oscuro));
  color: #fff;
  border-bottom-right-radius: 5px;
}
.burbuja.error {
  align-self: center;
  background: rgba(220, 38, 38, 0.08);
  border: 1px solid rgba(220, 38, 38, 0.3);
  color: var(--peligro);
  font-size: 0.82rem;
  text-align: center;
}
.burbuja strong { font-weight: 800; }
.burbuja .folio {
  background: color-mix(in srgb, var(--color-primary) 12%, #fff);
  border: 1px solid color-mix(in srgb, var(--color-primary) 34%, transparent);
  color: var(--color-primary-oscuro);
  border-radius: 6px;
  padding: 1px 7px;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.escribiendo {
  align-self: flex-start;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--superficie);
  border: 1px solid var(--borde);
  border-radius: 16px;
  border-bottom-left-radius: 5px;
  font-size: 0.8rem;
  color: var(--texto-suave);
}
.escribiendo .puntos { display: inline-flex; gap: 4px; }
.escribiendo .puntos span {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--texto-suave);
  animation: punto-brinca 1.2s infinite;
}
.escribiendo .puntos span:nth-child(2) { animation-delay: 0.15s; }
.escribiendo .puntos span:nth-child(3) { animation-delay: 0.3s; }
@keyframes punto-brinca {
  0%, 60%, 100% { transform: none; opacity: 0.5; }
  30% { transform: translateY(-4px); opacity: 1; }
}

.chat-sugerencias {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 8px 16px;
  scrollbar-width: none;
  flex: 0 0 auto;
}
.chat-sugerencias::-webkit-scrollbar { display: none; }
.chip-sugerencia {
  flex: 0 0 auto;
  background: var(--superficie);
  border: 1.5px solid var(--borde);
  color: var(--texto-suave);
  border-radius: 999px;
  padding: 7px 14px;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}
.chip-sugerencia:hover { border-color: var(--color-primary); color: var(--color-primary-oscuro); }

.chat-entrada {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  background: var(--superficie);
  border-top: 1px solid var(--borde);
  flex: 0 0 auto;
}
#chat-input {
  flex: 1;
  resize: none;
  max-height: 120px;
  background: var(--fondo);
  border: 1.5px solid var(--borde);
  border-radius: 14px;
  color: var(--texto);
  font-size: 0.92rem;
  line-height: 1.45;
  padding: 11px 14px;
}
#chat-input:focus { outline: none; border-color: var(--color-primary); }
#chat-input::placeholder { color: var(--texto-suave); }

#chat-enviar {
  width: 44px; height: 44px;
  border: none;
  border-radius: 50%;
  background: var(--color-primary);
  color: #2e1065;
  font-size: 1.05rem;
  cursor: pointer;
  flex: 0 0 auto;
  transition: background 0.15s ease, transform 0.1s ease;
}
#chat-enviar:hover { background: var(--color-primary-oscuro); color: #fff; }
#chat-enviar:active { transform: scale(0.94); }
#chat-enviar:disabled { opacity: 0.45; cursor: not-allowed; }

/* ─── Toast ───────────────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  background: var(--oscuro);
  color: #fff;
  padding: 12px 20px;
  border-radius: 12px;
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
  white-space: nowrap;
  max-width: calc(100vw - 32px);
  overflow: hidden;
  text-overflow: ellipsis;
  animation: toast-entra 0.25s ease;
}
@keyframes toast-entra {
  from { opacity: 0; transform: translate(-50%, 10px); }
  to   { opacity: 1; transform: translate(-50%, 0); }
}