/* ============================================
   PREMIUM DESIGN SYSTEM - CSS Variables
   ============================================ */

:root {
  /* Light Mode (default) */
  --bg-primary: 255 255 255;
  --bg-secondary: 246 248 250;
  --bg-tertiary: 234 238 242;
  --bg-hover: 208 215 222;
  --bg-elevated: 255 255 255;
  /* Campos de formulario: un tono más claro que el panel para que el usuario distinga bien el área editable */
  --bg-field: 236 240 245;

  /* Acentos */
  --accent-primary: 59 130 246;
  --accent-primary-hover: 37 99 235;
  --accent-success: 34 197 94;
  --accent-success-hover: 22 163 74;
  --accent-warning: 245 158 11;
  --accent-danger: 239 68 68;
  --accent-info: 6 182 212;

  /* Texto */
  --text-primary: 31 35 40;
  --text-secondary: 101 109 118;
  --text-tertiary: 140 149 159;
  --text-muted: 176 184 191;

  /* Bordes */
  --border-subtle: 31 35 40;
  --border-default: 31 35 40;
  --border-hover: 31 35 40;
  --border-focus: 59 130 246;

  /* Sombras */
  --shadow-sm: 0 1px 2px 0 rgba(31, 35, 40, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(31, 35, 40, 0.08), 0 2px 4px -2px rgba(31, 35, 40, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(31, 35, 40, 0.08), 0 4px 6px -4px rgba(31, 35, 40, 0.04);
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.12);

  /* Transiciones */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode */
html.dark {
  --accent-success-hover: 21 128 61;
  --bg-primary: 13 17 23;
  --bg-secondary: 22 27 34;
  --bg-tertiary: 33 38 45;
  --bg-hover: 48 54 61;
  --bg-elevated: 28 33 40;
  /* ~#2d333b — contraste frente a --bg-primary / paneles (#15171a–#161b22) */
  --bg-field: 45 51 59;

  --text-primary: 240 246 252;
  --text-secondary: 139 148 158;
  --text-tertiary: 110 118 129;
  --text-muted: 72 79 88;

  --border-subtle: 255 255 255;
  --border-default: 255 255 255;
  --border-hover: 255 255 255;
  --border-focus: 59 130 246;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -4px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.15);
}

/*
 * Superficie de entrada: más clara que bg-tertiary/paneles en modo oscuro (referencia UI).
 * Solo aplica a controles con clase Tailwind bg-bg-tertiary — no altera botones ni contenedores.
 */
select.bg-bg-tertiary,
textarea.bg-bg-tertiary,
input.bg-bg-tertiary:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]),
select.bg-bg-secondary,
textarea.bg-bg-secondary,
input.bg-bg-secondary:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]) {
  background-color: rgb(var(--bg-field)) !important;
}

html.dark select.bg-bg-tertiary,
html.dark textarea.bg-bg-tertiary,
html.dark input.bg-bg-tertiary:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]),
html.dark select.bg-bg-secondary,
html.dark textarea.bg-bg-secondary,
html.dark input.bg-bg-secondary:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]) {
  border-color: rgba(var(--border-default), 0.07) !important;
}

/* Scrollbar Styling */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: rgb(var(--bg-primary)); }
::-webkit-scrollbar-thumb { background: rgb(var(--bg-tertiary)); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgb(var(--bg-hover)); }

.glass-panel {
  background: rgb(var(--bg-secondary));
  border: 1px solid rgb(var(--border-default));
  border-radius: 12px;
  transition: transform 220ms cubic-bezier(0.22, 1, 0.36, 1), background var(--transition-normal), border-color var(--transition-normal), color var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-panel-interactive {
  background: rgb(var(--bg-secondary));
  border: 1px solid rgb(var(--border-default));
  border-radius: 12px;
  transition: all var(--transition-normal);
  cursor: pointer;
}

.glass-panel-interactive:hover {
  border-color: rgba(var(--border-hover), 0.25);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.glass-header {
  background: rgba(var(--bg-primary), 0.88);
  border-bottom: 1px solid rgba(var(--border-default), 0.12);
  backdrop-filter: blur(18px);
}

.sidebar-shell {
  width: 18rem;
  background: linear-gradient(180deg, rgba(var(--bg-secondary), 0.96) 0%, rgba(var(--bg-primary), 0.98) 100%);
  border-right: 1px solid rgba(var(--border-default), 0.12);
  backdrop-filter: blur(18px);
  box-shadow: inset -1px 0 0 rgba(var(--border-default), 0.05);
  position: relative;
  will-change: width;
  transition: width 260ms cubic-bezier(0.22, 1, 0.36, 1), padding 260ms cubic-bezier(0.22, 1, 0.36, 1), background 260ms cubic-bezier(0.22, 1, 0.36, 1), box-shadow 260ms cubic-bezier(0.22, 1, 0.36, 1);
}

.sidebar-brand {
  position: relative;
}

.sidebar-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0 0.25rem;
}

.sidebar-brand-copy {
  transition: opacity 180ms ease, transform 220ms cubic-bezier(0.22, 1, 0.36, 1), max-width 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

.sidebar-toggle {
  width: 2.25rem;
  height: 2.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  color: rgb(var(--text-tertiary));
  background: rgba(var(--bg-tertiary), 0.7);
  border: 1px solid rgba(var(--border-default), 0.1);
  transition: transform 220ms cubic-bezier(0.22, 1, 0.36, 1), background var(--transition-normal), border-color var(--transition-normal), color var(--transition-normal), box-shadow var(--transition-normal);
  flex-shrink: 0;
}

.sidebar-toggle:hover {
  color: rgb(var(--text-primary));
  background: rgba(var(--bg-hover), 0.5);
  border-color: rgba(var(--border-default), 0.16);
  transform: scale(1.06);
}

.sidebar-section-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgb(var(--text-tertiary));
  padding: 0;
  transition: opacity 160ms ease, transform 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

.nav-item {
  min-height: 4.25rem;
  border-radius: 16px;
  display: flex;
  align-items: center;
  gap: 0.875rem;
  color: rgb(var(--text-tertiary));
  position: relative;
  transition: all var(--transition-normal);
  text-decoration: none;
  padding: 0.875rem 0.95rem;
  border: 1px solid transparent;
  overflow: visible;
}

.nav-item:hover {
  background: rgba(var(--bg-tertiary), 0.72);
  color: rgb(var(--text-primary));
  border-color: rgba(var(--border-default), 0.12);
  transform: translateX(3px);
  box-shadow: 0 12px 24px -20px rgba(var(--accent-primary), 0.28);
}

.nav-item-icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(var(--bg-tertiary), 0.7);
  color: currentColor;
  flex-shrink: 0;
  transition: transform 220ms cubic-bezier(0.22, 1, 0.36, 1), background var(--transition-normal), color var(--transition-normal);
}

.nav-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1;
  transition: opacity var(--transition-fast), transform var(--transition-fast), max-width var(--transition-fast);
}

.nav-title {
  font-size: 0.94rem;
  font-weight: 600;
  color: rgb(var(--text-primary));
}

.nav-kicker {
  font-size: 0.74rem;
  color: rgb(var(--text-secondary));
  line-height: 1.35;
}

.nav-indicator {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 9999px;
  background: transparent;
  box-shadow: 0 0 0 1px rgba(var(--border-default), 0.16) inset;
  flex-shrink: 0;
}

.nav-item:hover .tooltip {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.nav-item:hover .nav-item-icon {
  background: rgba(var(--accent-primary), 0.12);
  transform: scale(1.04);
}

.active-nav-item {
  background: linear-gradient(135deg, rgba(var(--accent-primary), 0.16), rgba(var(--accent-primary), 0.07));
  color: rgb(var(--accent-primary)) !important;
  border-color: rgba(var(--accent-primary), 0.24);
  box-shadow: 0 10px 24px -18px rgba(var(--accent-primary), 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.active-nav-item .nav-item-icon {
  background: rgba(var(--accent-primary), 0.16);
  color: rgb(var(--accent-primary));
}

.active-nav-item .nav-title {
  color: rgb(var(--accent-primary));
}

.active-nav-item .nav-kicker {
  color: rgb(var(--text-primary));
}

.active-nav-item .nav-indicator {
  background: rgb(var(--accent-primary));
  box-shadow: 0 0 0 6px rgba(var(--accent-primary), 0.12);
}

.tooltip {
  position: absolute;
  left: calc(100% + 12px);
  background: rgb(var(--bg-secondary));
  color: rgb(var(--text-primary));
  font-size: 0.75rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 8px;
  white-space: nowrap;
  opacity: 0;
  transform: translateX(-6px);
  transition: all var(--transition-fast);
  pointer-events: none;
  border: 1px solid rgba(var(--border-default), 0.15);
  box-shadow: var(--shadow-md);
  z-index: 50;
}

.sidebar-secondary-action {
  width: 100%;
  min-height: 3rem;
  display: inline-flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.75rem 0.95rem;
  border-radius: 14px;
  color: rgb(var(--text-secondary));
  background: transparent;
  border: 1px solid transparent;
  text-decoration: none;
  transition: transform 220ms cubic-bezier(0.22, 1, 0.36, 1), background var(--transition-normal), border-color var(--transition-normal), color var(--transition-normal), box-shadow var(--transition-normal);
  position: relative;
  overflow: visible;
}

.sidebar-secondary-action:hover {
  background: rgba(var(--bg-tertiary), 0.72);
  border-color: rgba(var(--border-default), 0.12);
  color: rgb(var(--text-primary));
  transform: translateX(2px);
}

.sidebar-secondary-danger:hover {
  background: rgba(var(--accent-danger), 0.08);
  border-color: rgba(var(--accent-danger), 0.18);
  color: rgb(var(--accent-danger));
}

.sidebar-action-label {
  transition: opacity 160ms ease, transform 220ms cubic-bezier(0.22, 1, 0.36, 1), max-width 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

html.sidebar-collapsed .sidebar-brand-copy,
html.sidebar-collapsed .nav-copy,
html.sidebar-collapsed .nav-indicator,
html.sidebar-collapsed .sidebar-action-label {
  display: none;
}

html.sidebar-collapsed .sidebar-shell {
  width: 6rem;
  padding-left: 0.75rem;
  padding-right: 0.75rem;
  box-shadow: inset -1px 0 0 rgba(var(--border-default), 0.05), 10px 0 30px -24px rgba(0, 0, 0, 0.22);
}

html.sidebar-collapsed .sidebar-brand {
  padding-bottom: 1rem;
}

html.sidebar-collapsed .sidebar-brand > div {
  justify-content: center;
}

html.sidebar-collapsed .nav-item {
  width: 3.5rem;
  min-width: 3.5rem;
  min-height: 3.5rem;
  height: 3.5rem;
  justify-content: center;
  align-items: center;
  gap: 0;
  padding-left: 0.75rem;
  padding-right: 0.75rem;
  margin-left: auto;
  margin-right: auto;
  border-radius: 18px;
}

html.sidebar-collapsed .nav-item-icon {
  width: 2.35rem;
  height: 2.35rem;
  border-radius: 14px;
}

html.sidebar-collapsed .nav-item:hover {
  transform: translateY(-1px);
}

html.sidebar-collapsed .sidebar-section-header {
  justify-content: center;
  padding: 0;
}

html.sidebar-collapsed .sidebar-section-label {
  display: none;
}

html.sidebar-collapsed .sidebar-footer {
  align-items: center;
}

html.sidebar-collapsed .sidebar-secondary-action {
  width: 3.5rem;
  min-width: 3.5rem;
  min-height: 3.5rem;
  height: 3.5rem;
  justify-content: center;
  gap: 0;
  padding-left: 0.75rem;
  padding-right: 0.75rem;
  margin-left: auto;
  margin-right: auto;
  border-radius: 18px;
}

html.sidebar-collapsed .nav-item:hover .tooltip {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

html.sidebar-collapsed .sidebar-secondary-action:hover .tooltip {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

html:not(.sidebar-collapsed) .nav-item:hover .tooltip {
  opacity: 0;
  transform: translateX(-6px);
  pointer-events: none;
}

html:not(.sidebar-collapsed) .sidebar-secondary-action .tooltip {
  opacity: 0;
  transform: translateX(-6px);
  pointer-events: none;
}

.sidebar-shell + div {
  min-width: 0;
}

@keyframes slideIn {
  from { transform: translateX(400px); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

@keyframes slideOut {
  from { transform: translateX(0); opacity: 1; }
  to   { transform: translateX(400px); opacity: 0; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.animate-slideIn { animation: slideIn 0.3s ease forwards; }
.animate-fadeInUp { animation: fadeInUp 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards; }

.skeleton {
  background: linear-gradient(
    90deg,
    rgb(var(--bg-tertiary)) 25%,
    rgb(var(--bg-hover)) 50%,
    rgb(var(--bg-tertiary)) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

select {
  background-color: rgba(var(--bg-secondary), 0.05) !important;
  color: rgb(var(--text-primary)) !important;
  border: 1px solid rgba(var(--border-default), 0.1) !important;
}

select:focus {
  outline: none !important;
  box-shadow: 0 0 0 2px rgba(var(--border-focus), 0.24) !important;
  border-color: transparent !important;
}

select option {
  background-color: rgb(var(--bg-secondary)) !important;
  color: rgb(var(--text-primary)) !important;
}

select option:checked  { background-color: rgba(var(--accent-primary), 0.18) !important; }
select option:disabled { background-color: rgba(var(--bg-hover), 0.25) !important; color: rgb(var(--text-tertiary)) !important; }
select option[value=""] { color: rgb(var(--text-tertiary)) !important; }

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
input[type="number"],
textarea {
  background-color: rgb(var(--bg-tertiary)) !important;
  color: rgb(var(--text-primary)) !important;
  border: 1px solid rgba(var(--border-default), 0.12) !important;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
textarea:focus {
  outline: none !important;
  box-shadow: 0 0 0 2px rgba(var(--border-focus), 0.24) !important;
  border-color: transparent !important;
}

input::placeholder, textarea::placeholder { color: rgb(var(--text-tertiary)) !important; }

input:disabled, select:disabled, textarea:disabled {
  background-color: rgba(var(--bg-hover), 0.25) !important;
  color: rgb(var(--text-tertiary)) !important;
  cursor: not-allowed !important;
}