/* ============================================================
   BASE — Reset y elementos fundamentales
   ============================================================ */

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

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', system-ui, -apple-system, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.2; }

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

button { cursor: pointer; }

input, select, textarea {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-2);
  color: var(--color-text);
  font-family: inherit;
  font-size: 13px;
  padding: 8px 12px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

input:focus, select:focus, textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-bg);
}

input[type="checkbox"] { width: auto; }
input[type="number"] { -moz-appearance: textfield; }
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button { -webkit-appearance: none; }

textarea { resize: vertical; min-height: 80px; }

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  padding: 9px 18px;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  transition: opacity var(--transition), transform var(--transition);
}
.btn-primary:hover { opacity: 0.88; }
.btn-primary:active { transform: scale(0.98); }

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  transition: all var(--transition);
}
.btn-outline:hover {
  background: var(--color-bg-3);
  border-color: var(--color-border-2);
}

.btn-sm { padding: 6px 12px; font-size: 12px; }

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  width: 32px;
  height: 32px;
  color: var(--color-text-2);
  transition: all var(--transition);
  flex-shrink: 0;
}
.btn-icon:hover {
  background: var(--color-primary-bg);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* Toggle switch */
.toggle {
  position: relative;
  width: 38px;
  height: 22px;
  flex-shrink: 0;
}
.toggle input { opacity: 0; width: 0; height: 0; position: absolute; }
.slider-t {
  position: absolute;
  inset: 0;
  background: var(--color-border-2);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background 0.2s;
}
.slider-t::before {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  left: 3px;
  top: 3px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
  box-shadow: var(--shadow-sm);
}
.toggle input:checked + .slider-t { background: var(--color-primary); }
.toggle input:checked + .slider-t::before { transform: translateX(16px); }

/* Badges */
.badge-on  { background: var(--color-green-bg);  color: var(--color-green);  font-size:11px; font-weight:600; padding:2px 8px; border-radius:var(--radius-full); }
.badge-warn{ background: var(--color-amber-bg);  color: var(--color-amber);  font-size:11px; font-weight:600; padding:2px 8px; border-radius:var(--radius-full); }
.badge-off { background: var(--color-bg-3);      color: var(--color-text-3); font-size:11px; font-weight:600; padding:2px 8px; border-radius:var(--radius-full); }

/* Status dot */
.status-dot { width:8px; height:8px; border-radius:50%; flex-shrink:0; display:inline-block; }
.dot-on   { background: var(--color-green); }
.dot-off  { background: var(--color-text-3); }
.dot-warn { background: var(--color-amber); }

/* Live dot */
.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-green);
  display: inline-block;
  animation: pulse-live 2s infinite;
}
@keyframes pulse-live {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(29,158,117,0.4); }
  50% { opacity: 0.8; box-shadow: 0 0 0 4px rgba(29,158,117,0); }
}

/* Notifications */
.notification {
  padding: 10px 16px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.notification.success { background: var(--color-green-bg); color: var(--color-green); border: 1px solid rgba(29,158,117,0.2); }
.notification.error   { background: var(--color-red-bg);   color: var(--color-red);   border: 1px solid rgba(233,69,96,0.2); }
.notification.warning { background: var(--color-amber-bg); color: var(--color-amber); border: 1px solid rgba(186,117,23,0.2); }
.notification.info    { background: var(--color-blue-bg);  color: var(--color-blue);  border: 1px solid rgba(24,95,165,0.2); }

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--color-text);
  color: var(--color-text-inv);
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  z-index: 9999;
  transform: translateY(80px);
  opacity: 0;
  transition: all 0.3s ease;
  max-width: 320px;
  box-shadow: var(--shadow-lg);
}
.toast.show {
  transform: translateY(0);
  opacity: 1;
}
.toast.success { background: var(--color-green); }
.toast.error   { background: var(--color-red); }

/* Info box */
.info-box {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  background: var(--color-blue-bg);
  color: var(--color-blue);
  border: 1px solid rgba(24,95,165,0.2);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-size: 12px;
  line-height: 1.5;
  margin-bottom: 12px;
}
.info-box i { font-size: 16px; flex-shrink: 0; margin-top: 1px; }

/* Required asterisk */
.required { color: var(--color-red); }

/* Field hint */
.field-hint { font-size: 11px; color: var(--color-text-3); margin-top: 3px; }

/* Utilities */
.text-green  { color: var(--color-green); }
.text-red    { color: var(--color-red); }
.text-amber  { color: var(--color-amber); }
.text-blue   { color: var(--color-blue); }
.text-purple { color: var(--color-purple); }
.text-muted  { color: var(--color-text-3); }
.accent      { color: var(--color-primary); }

/* Grid helpers */
.grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: start;
}
@media (max-width: 900px) {
  .grid-2col { grid-template-columns: 1fr; }
}

/* Link help */
.link-help {
  font-size: 11px;
  font-weight: 400;
  color: var(--color-primary);
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 3px;
}