/* ============================================================
   Reto Diario — Estilos globales
   ============================================================ */

:root {
  --bg:        #0f172a;
  --surface:   #1e293b;
  --surface2:  #334155;
  --accent:    #6366f1;
  --accent2:   #8b5cf6;
  --success:   #22c55e;
  --warning:   #f59e0b;
  --danger:    #ef4444;
  --text:      #f1f5f9;
  --text-muted:#94a3b8;
  --radius:    14px;
  --font:      'Inter', system-ui, sans-serif;

  /* Colores por categoría */
  --cat-salud:    #22c55e;
  --cat-trabajo:  #6366f1;
  --cat-casa:     #f59e0b;
  --cat-estudio:  #3b82f6;
  --cat-pareja:   #ec4899;
  --cat-familia:  #f97316;
  --cat-dinero:   #14b8a6;
  --cat-habitos:  #8b5cf6;
  --cat-diversion:#eab308;
  --cat-personal: #64748b;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* ---- Layout ---- */
#app { flex: 1; display: flex; flex-direction: column; max-width: 480px; margin: 0 auto; width: 100%; }

/* ---- Páginas ---- */
.page { display: none; flex-direction: column; flex: 1; padding: 0 0 80px; }
.page.active { display: flex; }

/* ---- Barra de navegación ---- */
.nav-bar {
  position: fixed; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 100%; max-width: 480px;
  background: var(--surface);
  display: flex; justify-content: space-around;
  padding: 10px 0 max(10px, env(safe-area-inset-bottom));
  border-top: 1px solid var(--surface2);
  z-index: 100;
}
.nav-bar button {
  background: none; border: none; color: var(--text-muted);
  display: flex; flex-direction: column; align-items: center;
  gap: 3px; font-size: 10px; cursor: pointer; padding: 4px 12px;
  border-radius: 8px; transition: color .2s;
}
.nav-bar button.active,
.nav-bar button:hover { color: var(--accent); }
.nav-bar button svg { width: 22px; height: 22px; }

/* ---- Header ---- */
.page-header { padding: 20px 20px 0; display: flex; align-items: center; gap: 10px; }
.page-header h1 { font-size: 22px; font-weight: 700; }
.page-header p  { color: var(--text-muted); font-size: 14px; }

/* ---- Tarjetas ---- */
.card {
  background: var(--surface); border-radius: var(--radius);
  padding: 16px; margin: 12px 20px 0;
}
.card-title { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 4px; }
.card-value { font-size: 28px; font-weight: 700; }

/* ---- Botones ---- */
.btn {
  border: none; border-radius: 10px; cursor: pointer;
  font-size: 15px; font-weight: 600; padding: 13px 20px;
  transition: opacity .15s, transform .1s;
}
.btn:active { transform: scale(.97); }
.btn-primary  { background: var(--accent); color: #fff; }
.btn-success  { background: var(--success); color: #fff; }
.btn-danger   { background: var(--danger); color: #fff; }
.btn-ghost    { background: var(--surface2); color: var(--text); }
.btn-full     { width: 100%; display: block; }
.btn:disabled { opacity: .45; cursor: not-allowed; }

/* ---- Formularios ---- */
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.form-group label { font-size: 13px; color: var(--text-muted); }
.form-group input,
.form-group select,
.form-group textarea {
  background: var(--surface2); border: 1px solid transparent;
  border-radius: 10px; color: var(--text);
  font-size: 15px; padding: 11px 14px;
  outline: none; transition: border-color .2s;
  width: 100%;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--accent); }
.form-group textarea { resize: vertical; min-height: 70px; }

/* ---- Login / Registro ---- */
#page-auth {
  justify-content: center; padding: 30px 24px;
  min-height: 100dvh;
}
.auth-logo { text-align: center; margin-bottom: 30px; }
.auth-logo h1 { font-size: 32px; color: var(--accent); }
.auth-logo p { color: var(--text-muted); font-size: 14px; margin-top: 4px; }
.auth-tabs { display: flex; background: var(--surface2); border-radius: 10px; margin-bottom: 24px; }
.auth-tab {
  flex: 1; text-align: center; padding: 10px; cursor: pointer;
  border-radius: 10px; font-weight: 600; font-size: 14px;
  color: var(--text-muted); transition: background .2s, color .2s;
}
.auth-tab.active { background: var(--accent); color: #fff; }

/* ---- Actividades ---- */
.activity-card {
  background: var(--surface); border-radius: var(--radius);
  padding: 14px 16px; margin: 10px 20px 0;
  display: flex; align-items: center; gap: 12px;
  border-left: 4px solid var(--accent);
}
.activity-card.completed { opacity: .5; }
.activity-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.activity-info { flex: 1; }
.activity-info h3 { font-size: 15px; font-weight: 600; }
.activity-info small { font-size: 12px; color: var(--text-muted); }
.activity-pts { font-size: 13px; font-weight: 700; color: var(--accent); margin-right: 6px; }
.btn-check {
  background: none; border: 2px solid var(--surface2); border-radius: 50%;
  width: 28px; height: 28px; cursor: pointer; display: flex;
  align-items: center; justify-content: center; flex-shrink: 0;
  transition: background .15s, border-color .15s;
}
.btn-check.done { background: var(--success); border-color: var(--success); }

/* ---- Barra de progreso ---- */
.progress-bar { background: var(--surface2); border-radius: 99px; height: 8px; margin: 6px 0; }
.progress-fill { background: linear-gradient(90deg,var(--accent),var(--accent2)); border-radius: 99px; height: 100%; transition: width .5s; }

/* ---- Recompensas ---- */
.reward-card {
  background: var(--surface); border-radius: var(--radius);
  padding: 16px; margin: 10px 20px 0; position: relative;
}
.reward-card.locked { opacity: .55; }
.reward-pts { font-size: 13px; color: var(--warning); font-weight: 700; }

/* ---- Calendario ---- */
#calendar-grid { padding: 12px 20px 0; }

/* ---- Toasts ---- */
#toast-container { position: fixed; top: 16px; left: 50%; transform: translateX(-50%); z-index: 999; display: flex; flex-direction: column; gap: 8px; width: 340px; max-width: calc(100vw - 32px); }
.toast {
  background: var(--surface2); border-radius: 10px; padding: 12px 16px;
  font-size: 14px; box-shadow: 0 4px 20px #0007;
  animation: slideIn .3s ease; border-left: 4px solid var(--accent);
}
.toast.success { border-color: var(--success); }
.toast.error   { border-color: var(--danger); }
@keyframes slideIn { from { opacity:0; transform: translateY(-12px); } to { opacity:1; transform: translateY(0); } }

/* ---- Spinner ---- */
.spinner { width: 22px; height: 22px; border: 3px solid var(--surface2); border-top-color: var(--accent); border-radius: 50%; animation: spin .7s linear infinite; margin: 40px auto; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- Scroll ---- */
.scroll-area { overflow-y: auto; flex: 1; }
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-thumb { background: var(--surface2); border-radius: 99px; }

/* ---- FAB ---- */
.fab {
  position: fixed; bottom: 90px; right: calc(50% - 240px + 20px);
  background: var(--accent); color: #fff;
  border: none; border-radius: 50%; width: 54px; height: 54px;
  font-size: 26px; cursor: pointer; box-shadow: 0 4px 18px #6366f155;
  display: flex; align-items: center; justify-content: center;
  z-index: 99; transition: transform .15s;
}
.fab:active { transform: scale(.92); }
@media (max-width: 520px) { .fab { right: 20px; } }

/* ---- Modal ---- */
.modal-overlay {
  position: fixed; inset: 0; background: #000a; z-index: 200;
  display: none; align-items: flex-end; justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--surface); border-radius: var(--radius) var(--radius) 0 0;
  padding: 24px; width: 100%; max-width: 480px;
  max-height: 90dvh; overflow-y: auto;
  animation: slideUp .25s ease;
}
@keyframes slideUp { from { transform: translateY(40px); opacity:0; } to { transform: translateY(0); opacity:1; } }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.modal-header h2 { font-size: 18px; font-weight: 700; }
.modal-close { background: none; border: none; color: var(--text-muted); font-size: 22px; cursor: pointer; }

/* ---- Racha ---- */
.streak-badge { display: inline-flex; align-items: center; gap: 4px; background: var(--warning); color: #000; border-radius: 99px; padding: 3px 10px; font-size: 13px; font-weight: 700; }

/* ---- Categoría chips ---- */
.chip { display: inline-block; border-radius: 99px; padding: 3px 10px; font-size: 11px; font-weight: 600; }

/* Colores por categoría en tarjetas */
.cat-salud    { border-color: var(--cat-salud) !important; }
.cat-trabajo  { border-color: var(--cat-trabajo) !important; }
.cat-casa     { border-color: var(--cat-casa) !important; }
.cat-estudio  { border-color: var(--cat-estudio) !important; }
.cat-pareja   { border-color: var(--cat-pareja) !important; }
.cat-familia  { border-color: var(--cat-familia) !important; }
.cat-dinero   { border-color: var(--cat-dinero) !important; }
.cat-habitos  { border-color: var(--cat-habitos) !important; }
.cat-diversion{ border-color: var(--cat-diversion) !important; }
.cat-personal { border-color: var(--cat-personal) !important; }

.dot-salud    { background: var(--cat-salud); }
.dot-trabajo  { background: var(--cat-trabajo); }
.dot-casa     { background: var(--cat-casa); }
.dot-estudio  { background: var(--cat-estudio); }
.dot-pareja   { background: var(--cat-pareja); }
.dot-familia  { background: var(--cat-familia); }
.dot-dinero   { background: var(--cat-dinero); }
.dot-habitos  { background: var(--cat-habitos); }
.dot-diversion{ background: var(--cat-diversion); }
.dot-personal { background: var(--cat-personal); }

/* ---- Empty state ---- */
.empty { text-align: center; padding: 40px 20px; color: var(--text-muted); }
.empty span { font-size: 40px; display: block; margin-bottom: 8px; }