/* ═══════════════════════════════════════════════════════════════════════
   GymBro — NutriAI (nutri.html). Mobile-first, columna máx 520px como el
   portal del socio. Dos vistas: Mi día (bitácora de comidas) y chat con
   NutriAI. Base visual heredada de coach.css; acento verde saludable.
   ═══════════════════════════════════════════════════════════════════════ */

:root {
  --color-primary: #16a34a;
  --color-primary-oscuro: #107038;
  --color-accent: #84cc16;
  --verde: #16a34a;
  --fondo: #f4f6f9;
  --superficie: #ffffff;
  --oscuro: #0c111d;
  --oscuro-2: #131a2a;
  --texto: #1c2434;
  --texto-suave: #5b6577;
  --borde: #e4e7ec;
  --exito: #16a34a;
  --peligro: #dc2626;
  --ambar: #d97706;
  --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) 30%, 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: #fff;
  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-primary-oscuro); }
.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 8px;
}
.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-titulo { flex: 1; min-width: 0; }
.app-titulo strong { display: block; font-size: 1rem; font-weight: 900; }
.app-titulo small { color: #98a1b3; font-size: 0.74rem; }
.app-avatar {
  width: 36px; height: 36px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  font-weight: 900;
  font-size: 0.82rem;
}

/* tabs segmentadas */
.tabs { display: grid; grid-template-columns: 1fr 1fr; padding: 0 16px 12px; gap: 8px; }
.tab {
  position: relative;
  background: rgba(255, 255, 255, 0.07);
  border: 1.5px solid transparent;
  color: #b9c1d0;
  border-radius: 999px;
  padding: 9px 10px;
  font-size: 0.85rem;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.15s ease;
}
.tab.activo { background: var(--color-primary); color: #fff; }
.tab:not(.activo):hover { border-color: rgba(255, 255, 255, 0.25); color: #fff; }

/* ─── Main / vistas ───────────────────────────────────────────────────── */
.app-main { flex: 1; min-height: 0; overflow-y: auto; padding: 18px 18px 30px; }
.app-main.modo-chat { overflow: hidden; padding: 0; }

.nota-legal { font-size: 0.72rem; color: var(--texto-suave); margin-top: 16px; text-align: center; }

/* ─── Navegación de día ───────────────────────────────────────────────── */
.dia-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.dia-flecha {
  width: 40px; height: 40px;
  border: 1.5px solid var(--borde);
  background: var(--superficie);
  border-radius: 12px;
  font-size: 1.3rem;
  color: var(--texto-suave);
  cursor: pointer;
  transition: all 0.15s ease;
}
.dia-flecha:hover:not(:disabled) { border-color: var(--color-primary); color: var(--color-primary); }
.dia-flecha:disabled { opacity: 0.35; cursor: not-allowed; }
.dia-etiqueta { font-size: 1.05rem; font-weight: 900; letter-spacing: -0.01em; }

/* ─── Resumen del día ─────────────────────────────────────────────────── */
.nutri-resumen {
  background: var(--superficie);
  border: 1px solid var(--borde);
  border-radius: 18px;
  padding: 16px 18px;
  margin-bottom: 16px;
}
.res-kcal-cifras {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 8px;
}
.res-kcal-cifras strong { font-size: 1.9rem; font-weight: 900; letter-spacing: -0.03em; color: var(--texto); }
.res-kcal-cifras span { font-size: 0.9rem; font-weight: 700; color: var(--texto-suave); }
.res-barra {
  height: 12px;
  border-radius: 999px;
  background: var(--borde);
  overflow: hidden;
}
.res-barra > span {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: width 0.35s ease;
}
.res-barra.sobre > span { background: linear-gradient(90deg, var(--ambar), #f59e0b); }
.res-sinestimar { display: block; margin-top: 8px; font-size: 0.72rem; color: var(--ambar); font-weight: 700; }

.res-macros {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 14px;
}
.macro-chip {
  background: var(--fondo);
  border: 1px solid var(--borde);
  border-radius: 12px;
  padding: 9px 6px;
  text-align: center;
}
.macro-chip strong { display: block; font-size: 0.98rem; font-weight: 900; letter-spacing: -0.02em; }
.macro-chip small { font-size: 0.62rem; font-weight: 700; color: var(--texto-suave); text-transform: uppercase; letter-spacing: 0.04em; }
.macro-chip.prote strong { color: var(--color-primary); }

/* ─── Lista de comidas ────────────────────────────────────────────────── */
.nutri-lista { display: grid; gap: 14px; }

.mc-grupo { display: grid; gap: 8px; }
.mc-cabecera {
  font-size: 0.82rem;
  font-weight: 900;
  color: var(--texto);
  letter-spacing: -0.01em;
}

.comida {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--superficie);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  padding: 12px 14px;
}
.comida-info { flex: 1; min-width: 0; }
.comida-desc { font-size: 0.9rem; font-weight: 700; color: var(--texto); }
.comida-kcal { font-size: 0.8rem; font-weight: 700; color: var(--color-primary); margin-top: 2px; }
.comida-kcal.sin { color: var(--texto-suave); font-weight: 600; }
.badge-ia {
  display: inline-block;
  margin-left: 6px;
  background: color-mix(in srgb, var(--color-accent) 18%, #fff);
  border: 1px solid color-mix(in srgb, var(--color-accent) 40%, transparent);
  color: var(--color-primary-oscuro);
  border-radius: 6px;
  padding: 0 6px;
  font-size: 0.68rem;
  font-weight: 800;
}
.comida-borrar {
  flex: 0 0 auto;
  background: none;
  border: 1.5px solid var(--borde);
  border-radius: 10px;
  padding: 7px 9px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.comida-borrar:hover { border-color: var(--peligro); background: rgba(220, 38, 38, 0.06); }

.nutri-vacio {
  background: var(--superficie);
  border: 1.5px dashed var(--borde);
  border-radius: var(--radio);
  padding: 26px 18px;
  text-align: center;
  color: var(--texto-suave);
  font-size: 0.88rem;
}
.nutri-vacio strong { display: block; font-size: 1.4rem; margin-bottom: 6px; }

/* ─── Agregar comida ──────────────────────────────────────────────────── */
.btn-agregar {
  width: 100%;
  margin-top: 16px;
  border: 1.5px dashed color-mix(in srgb, var(--color-primary) 45%, var(--borde));
  border-radius: 14px;
  background: color-mix(in srgb, var(--color-primary) 6%, #fff);
  color: var(--color-primary-oscuro);
  font-size: 0.92rem;
  font-weight: 800;
  padding: 13px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.btn-agregar:hover { background: color-mix(in srgb, var(--color-primary) 12%, #fff); }

.form-comida {
  margin-top: 16px;
  background: var(--superficie);
  border: 1px solid var(--borde);
  border-radius: 16px;
  padding: 16px;
  display: grid;
  gap: 14px;
}
.form-comida .campo label {
  display: block;
  font-size: 0.8rem;
  font-weight: 800;
  margin-bottom: 6px;
}
.form-comida select, .form-comida textarea {
  width: 100%;
  border: 1.5px solid var(--borde);
  border-radius: 12px;
  background: var(--superficie);
  padding: 11px 12px;
  font-size: 0.92rem;
  color: var(--texto);
  resize: vertical;
}
.form-comida select:focus, .form-comida textarea:focus { outline: none; border-color: var(--color-primary); }

.form-error {
  color: var(--peligro);
  font-size: 0.82rem;
  font-weight: 700;
  background: rgba(220, 38, 38, 0.07);
  border-radius: 10px;
  padding: 10px 14px;
}

.form-comida-botones { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.btn-estimar {
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-oscuro));
  color: #fff;
  font-size: 0.9rem;
  font-weight: 900;
  padding: 13px;
  cursor: pointer;
  transition: transform 0.12s ease;
}
.btn-estimar:hover { transform: translateY(-1px); }
.btn-estimar:disabled { opacity: 0.6; cursor: wait; transform: none; }
.btn-guardar-manual {
  border: 1.5px solid var(--borde);
  border-radius: 999px;
  background: var(--superficie);
  color: var(--texto-suave);
  font-size: 0.9rem;
  font-weight: 800;
  padding: 13px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.btn-guardar-manual:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn-guardar-manual:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-cancelar-form {
  background: none;
  border: none;
  color: var(--texto-suave);
  font-size: 0.82rem;
  font-weight: 800;
  cursor: pointer;
  justify-self: center;
}
.btn-cancelar-form:hover { color: var(--peligro); }

/* ─── Vista chat (mismo lenguaje que CoachAI/GymBot) ──────────────────── */
.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) 10%, #fff);
  border: 1px solid color-mix(in srgb, var(--color-primary) 30%, 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); }

.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: #fff;
  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); }
#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); }
}