/* =========================================================================
   SGI TELEMETRIA LINKHUB - Estilos de aplicación
   Consume tokens.css. Usar SIEMPRE variables CSS, nunca hex directos.
   ========================================================================= */

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

html, body {
  height: 100%;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--bg-page);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.15s ease, color 0.15s ease;
}

a {
  color: var(--orange-600);
  text-decoration: none;
}
a:hover { color: var(--orange-700); }

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: transparent;
}

img, svg { display: block; max-width: 100%; }

/* ---------- Layout principal ---------- */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.app-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  margin-left: var(--sidebar-width);
  min-width: 0;
}

.app-content {
  flex: 1;
  padding: var(--space-6) var(--space-8);
}

/* ---------- Sidebar ---------- */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  z-index: 20;
  transition: background-color 0.15s ease;
}

.sidebar-brand {
  padding: var(--space-5) var(--space-5) var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.sidebar-brand-logo {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.sidebar-brand-text {
  color: var(--sidebar-item-active-text);
  line-height: 1.2;
}

.sidebar-brand-name {
  font-weight: 600;
  font-size: 15px;
}

.sidebar-brand-subtitle {
  font-size: 11px;
  opacity: 0.75;
  margin-top: 2px;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 0 var(--space-3) var(--space-4);
}

.sidebar-section-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--sidebar-section-label);
  padding: var(--space-4) var(--space-3) var(--space-2);
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  margin-bottom: 2px;
  border-radius: var(--radius);
  color: var(--sidebar-text);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.1s ease, color 0.1s ease;
  border-left: 2px solid transparent;
  position: relative;
}

.sidebar-item:hover {
  color: var(--sidebar-text-hover);
  background: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .sidebar-item:hover {
  background: rgba(255, 255, 255, 0.03);
}

.sidebar-item.active {
  background: var(--sidebar-item-active-bg);
  color: var(--sidebar-item-active-text);
  border-left-color: var(--sidebar-item-active-border);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-left: -2px;
  padding-left: calc(var(--space-3) + 2px);
}

/* En light theme, el active NO tiene borde izquierdo (el naranja del sidebar ya es distintivo) */
:root[data-theme="light"] .sidebar-item.active,
:root:not([data-theme="dark"]) .sidebar-item.active {
  border-left-color: transparent;
  border-radius: var(--radius);
  margin-left: 0;
  padding-left: var(--space-3);
}

.sidebar-item-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.9;
}

.sidebar-item-badge {
  margin-left: auto;
  background: rgba(255, 255, 255, 0.2);
  color: currentColor;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  min-width: 22px;
  text-align: center;
}

[data-theme="dark"] .sidebar-item-badge {
  background: rgba(255, 255, 255, 0.08);
}

.sidebar-item-badge.badge-new {
  background: var(--brand-gradient);
  color: #FFFFFF;
  font-size: 9px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.sidebar-footer {
  padding: var(--space-3);
  border-top: 1px solid var(--sidebar-divider);
}

/* ---------- Header ---------- */
.app-header {
  height: var(--header-height);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-8);
  gap: var(--space-4);
}

.header-search {
  flex: 1;
  max-width: 480px;
  position: relative;
}

.header-search input {
  width: 100%;
  height: 38px;
  padding: 0 var(--space-4) 0 40px;
  background: var(--bg-subtle);
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 13px;
  transition: all 0.15s ease;
}

.header-search input:focus {
  outline: none;
  border-color: var(--border-focus);
  background: var(--bg-surface);
  box-shadow: var(--shadow-focus);
}

.header-search-icon {
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  width: 16px;
  height: 16px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header-user {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 4px 12px 4px 4px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background 0.1s ease;
}

.header-user:hover { background: var(--bg-subtle); }

.header-user-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--brand-gradient);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 12px;
}

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: 38px;
  padding: 0 var(--space-4);
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  transition: all 0.1s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--text-primary);
  color: var(--text-inverse);
}
.btn-primary:hover:not(:disabled) {
  background: var(--text-secondary);
}

.btn-orange {
  background: var(--orange-500);
  color: #FFFFFF;
}
.btn-orange:hover:not(:disabled) { background: var(--orange-600); }
.btn-orange:active:not(:disabled) { background: var(--orange-700); }

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border-color: var(--border);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--bg-subtle);
  border-color: var(--border-strong);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}
.btn-ghost:hover:not(:disabled) {
  background: var(--bg-subtle);
  color: var(--text-primary);
}

.btn-sm { height: 30px; padding: 0 var(--space-3); font-size: 12px; }
.btn-lg { height: 44px; padding: 0 var(--space-5); font-size: 14px; }

.btn-icon {
  width: 38px;
  padding: 0;
  color: var(--text-secondary);
  background: transparent;
}
.btn-icon:hover:not(:disabled) {
  background: var(--bg-subtle);
  color: var(--text-primary);
}

/* ---------- Cards ---------- */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: border-color 0.1s ease;
}

.card-hoverable:hover {
  border-color: var(--border-strong);
}

/* KPI card (para el dashboard) */
.kpi-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  cursor: pointer;
  transition: all 0.1s ease;
}

.kpi-card:hover { border-color: var(--border-strong); }

.kpi-card.kpi-active {
  border-color: var(--orange-500);
  background: linear-gradient(135deg, var(--orange-50) 0%, var(--bg-surface) 100%);
}

[data-theme="dark"] .kpi-card.kpi-active {
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.08) 0%, var(--bg-surface) 100%);
}

.kpi-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.kpi-icon-orange { background: var(--orange-100); color: var(--orange-700); }
.kpi-icon-info { background: var(--info-100); color: var(--info-700); }
.kpi-icon-success { background: var(--success-100); color: var(--success-700); }
.kpi-icon-warning { background: var(--warning-100); color: var(--warning-700); }
.kpi-icon-danger { background: var(--danger-100); color: var(--danger-700); }

.kpi-body { min-width: 0; }
.kpi-value {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.1;
}
.kpi-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* ---------- Badges ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 500;
  line-height: 1.2;
}

.badge-neutral { background: var(--bg-subtle); color: var(--text-secondary); }
.badge-stable { background: var(--status-stable-bg); color: var(--status-stable-text); }
.badge-risk { background: var(--status-risk-bg); color: var(--status-risk-text); }
.badge-critical { background: var(--status-critical-bg); color: var(--status-critical-text); }
.badge-maintenance { background: var(--status-maintenance-bg); color: var(--status-maintenance-text); }

.badge-code {
  background: var(--text-primary);
  color: var(--text-inverse);
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 3px 6px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 4px;
  flex-shrink: 0;
}

/* ---------- Formularios ---------- */
.form-group { margin-bottom: var(--space-4); }

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  height: 42px;
  padding: 0 var(--space-3);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
  transition: all 0.15s ease;
}

.form-textarea { height: auto; min-height: 96px; padding: var(--space-3); resize: vertical; }

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: var(--shadow-focus);
}

.form-input::placeholder { color: var(--text-muted); }

.form-error {
  color: var(--danger-500);
  font-size: 12px;
  margin-top: var(--space-2);
}

.form-hint {
  color: var(--text-muted);
  font-size: 12px;
  margin-top: var(--space-2);
}

/* ---------- Flash / Alerts ---------- */
.alert {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius);
  border: 1px solid;
  margin-bottom: var(--space-4);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.alert-info {
  background: var(--info-50);
  border-color: var(--info-100);
  color: var(--info-700);
}
.alert-success {
  background: var(--success-50);
  border-color: var(--success-100);
  color: var(--success-700);
}
.alert-warning {
  background: var(--warning-50);
  border-color: var(--warning-100);
  color: var(--warning-700);
}
.alert-danger {
  background: var(--danger-50);
  border-color: var(--danger-100);
  color: var(--danger-700);
}

/* ---------- Filtros de pills (usados en dashboard) ---------- */
.filter-group {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.filter-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-right: var(--space-2);
}

.filter-pill {
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.1s ease;
}

.filter-pill:hover {
  background: var(--bg-subtle);
  color: var(--text-primary);
}

.filter-pill.active {
  background: var(--text-primary);
  color: var(--text-inverse);
}

.filter-pill .filter-pill-count {
  opacity: 0.7;
  margin-left: 4px;
  font-weight: 400;
}

/* ---------- Página de login ---------- */
.auth-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  background: var(--bg-page);
  position: relative;
  overflow: hidden;
}

.auth-shell::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  background: var(--brand-gradient);
  opacity: 0.08;
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
}

.auth-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
  position: relative;
  z-index: 1;
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.auth-brand-logo {
  width: 44px;
  height: 44px;
}

.auth-brand-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.auth-brand-subtitle {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.auth-heading {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.auth-subheading {
  color: var(--text-secondary);
  font-size: 13px;
  margin-bottom: var(--space-6);
}

/* ---------- Toggle de tema ---------- */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px;
  background: var(--bg-subtle);
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
}

.theme-toggle-btn {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all 0.1s ease;
}

.theme-toggle-btn:hover { color: var(--text-primary); }

.theme-toggle-btn.active {
  background: var(--bg-surface);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

/* ---------- Utilidades ---------- */
.stack { display: flex; flex-direction: column; }
.stack-2 > * + * { margin-top: var(--space-2); }
.stack-3 > * + * { margin-top: var(--space-3); }
.stack-4 > * + * { margin-top: var(--space-4); }
.stack-6 > * + * { margin-top: var(--space-6); }

.row { display: flex; align-items: center; }
.row-gap-2 { gap: var(--space-2); }
.row-gap-3 { gap: var(--space-3); }
.row-gap-4 { gap: var(--space-4); }
.row-between { justify-content: space-between; }

.text-xs { font-size: 11px; }
.text-sm { font-size: 12px; }
.text-md { font-size: 14px; }
.text-lg { font-size: 16px; }
.text-xl { font-size: 20px; }
.text-2xl { font-size: 24px; }
.text-3xl { font-size: 30px; }

.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-mono { font-family: var(--font-mono); }

.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }

.hidden { display: none !important; }

/* Scrollbar sutil */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ═══════════════════════════════════════════════════
   SIDEBAR v2 — Fase 4C
   Toggle expandir/colapsar + user footer + logout
   ═══════════════════════════════════════════════════ */
.sidebar { display: flex; flex-direction: column; transition: width 0.2s ease; }
.sidebar-brand { position: relative; display: flex; align-items: center; gap: 10px; }
.sidebar-toggle-btn { position: absolute; right: -12px; top: 50%; transform: translateY(-50%); width: 24px; height: 24px; border-radius: 50%; border: 2px solid var(--sidebar-bg, #f37021); background: var(--bg-primary, #fff); color: var(--sidebar-bg, #f37021); cursor: pointer; display: flex; align-items: center; justify-content: center; padding: 0; z-index: 10; box-shadow: 0 2px 4px rgba(0,0,0,0.1); transition: transform 0.2s ease, background 0.15s; }
.sidebar-toggle-btn:hover { background: var(--sidebar-bg, #f37021); color: white; }
.sidebar-toggle-btn .sidebar-toggle-icon-collapse { display: none; }
.sidebar-toggle-btn .sidebar-toggle-icon-expand { display: block; }
.sidebar-nav { flex: 1; overflow-y: auto; overflow-x: hidden; }
.sidebar-footer { padding: 12px; border-top: 1px solid rgba(255,255,255,0.1); display: flex; flex-direction: column; gap: 8px; }
.sidebar-user { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 8px; background: rgba(255,255,255,0.08); color: white; overflow: hidden; }
.sidebar-user-avatar { flex-shrink: 0; width: 32px; height: 32px; border-radius: 50%; background: rgba(255,255,255,0.2); color: white; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 12px; letter-spacing: 0.02em; }
.sidebar-user-info { flex: 1; min-width: 0; overflow: hidden; }
.sidebar-user-name { font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: white; }
.sidebar-user-role { font-size: 11px; opacity: 0.75; color: white; }
.sidebar-logout-form { margin: 0; }
.sidebar-logout-btn { display: flex; align-items: center; gap: 12px; width: 100%; padding: 10px 12px; border: 0; border-radius: 8px; background: transparent; color: rgba(255,255,255,0.9); font-family: inherit; font-size: 14px; font-weight: 500; text-align: left; cursor: pointer; transition: background 0.15s ease; }
.sidebar-logout-btn:hover { background: rgba(255,255,255,0.15); color: white; }
.sidebar-logout-btn .sidebar-item-icon { flex-shrink: 0; width: 18px; height: 18px; }

.sidebar.sidebar-collapsed { width: 68px !important; min-width: 68px !important; }
.sidebar-collapsed .sidebar-brand-text,
.sidebar-collapsed .sidebar-section-label,
.sidebar-collapsed .sidebar-item-label,
.sidebar-collapsed .sidebar-user-info { display: none !important; }
.sidebar-collapsed .sidebar-brand { justify-content: center; padding-left: 0; padding-right: 0; }
.sidebar-collapsed .sidebar-brand-logo { margin: 0 auto; }
.sidebar-collapsed .sidebar-item,
.sidebar-collapsed .sidebar-logout-btn { justify-content: center; padding: 12px 0; }
.sidebar-collapsed .sidebar-item-icon { margin: 0; }
.sidebar-collapsed .sidebar-user { justify-content: center; padding: 6px; }
.sidebar-collapsed .sidebar-user-avatar { margin: 0; }
.sidebar-collapsed .sidebar-toggle-btn .sidebar-toggle-icon-expand { display: none; }
.sidebar-collapsed .sidebar-toggle-btn .sidebar-toggle-icon-collapse { display: block; }

.sidebar-collapsed .sidebar-item,
.sidebar-collapsed .sidebar-logout-btn { position: relative; }
.sidebar-collapsed .sidebar-item[data-tooltip]:hover::after,
.sidebar-collapsed .sidebar-logout-btn[data-tooltip]:hover::after { content: attr(data-tooltip); position: absolute; left: calc(100% + 8px); top: 50%; transform: translateY(-50%); background: rgba(0,0,0,0.9); color: white; padding: 6px 10px; border-radius: 6px; font-size: 12px; font-weight: 500; white-space: nowrap; z-index: 100; pointer-events: none; box-shadow: 0 2px 8px rgba(0,0,0,0.2); }
.sidebar-collapsed .sidebar-item[data-tooltip]:hover::before,
.sidebar-collapsed .sidebar-logout-btn[data-tooltip]:hover::before { content: ''; position: absolute; left: calc(100% + 3px); top: 50%; transform: translateY(-50%); border: 5px solid transparent; border-right-color: rgba(0,0,0,0.9); z-index: 100; pointer-events: none; }