/* =================================================================
   ANDÉN MOBILITY — Base reset + typography
   ================================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
}

html, body {
  height: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  font-weight: 400;
  color: var(--text-0);
  background: var(--bg-0);
  font-feature-settings: var(--font-features-prose);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  /* Soporte para safe-area en PWAs iOS (notch + home indicator) */
  padding-left: var(--safe-left);
  padding-right: var(--safe-right);
  /* Smooth theme transition cuando data-theme cambia */
  transition: background-color var(--dur-base) var(--ease-out),
              color var(--dur-base) var(--ease-out);
}

/* Surfaces y borders que deben hacer fade suave al cambiar de tema */
.card, .modal, .topbar, .sidebar, .bottom-nav, .kpi, .input, .form-control,
.badge, .table-wrap, .map-stage, .nav-item {
  transition-property: background-color, border-color, color, box-shadow;
  transition-duration: var(--dur-base);
  transition-timing-function: var(--ease-out);
}

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

input, button, textarea, select { font: inherit; color: inherit; }

button { background: none; border: 0; cursor: pointer; padding: 0; }

a { color: inherit; text-decoration: none; }
a:hover { color: var(--brand-500); }

p, h1, h2, h3, h4, h5, h6 { overflow-wrap: break-word; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  line-height: var(--lh-tight);
  text-wrap: balance;
}

h1 { font-size: var(--fs-4xl); font-weight: 800; letter-spacing: var(--tracking-tighter); }
h2 { font-size: var(--fs-3xl); font-weight: 800; letter-spacing: var(--tracking-tighter); }
h3 { font-size: var(--fs-2xl); }
h4 { font-size: var(--fs-xl); }
h5 { font-size: var(--fs-lg); }
h6 { font-size: var(--fs-md); }

p { text-wrap: pretty; }

small { font-size: var(--fs-xs); }

code, kbd, samp, pre {
  font-family: var(--font-mono);
  font-size: 0.85em;
}

ul, ol { padding-left: 1.25rem; }
ul.list-clean, ol.list-clean { list-style: none; padding: 0; }

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: var(--sp-5) 0;
}

::selection { background: var(--primary-soft); color: var(--text-0); }

/* Scrollbars */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: var(--r-pill);
  border: 2px solid transparent;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover { background: var(--border-bold); background-clip: padding-box; border: 2px solid transparent; }
* { scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }

/* Focus ring premium — usa box-shadow tintada para look SaaS */
:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--brand-500);
  outline-offset: 2px;
  border-radius: var(--r-2);
  box-shadow: var(--shadow-focus);
  transition: box-shadow var(--dur-fast) var(--ease-out);
}

/* Elementos de UI propios usan box-shadow focus en lugar de outline */
.btn:focus-visible,
.input:focus-visible,
.card-interactive:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

/* ----- Display utils ----- */
.d-none { display: none !important; }
.d-flex { display: flex !important; }
.d-inline-flex { display: inline-flex !important; }
.d-grid { display: grid !important; }
.d-block { display: block !important; }

/* ----- Typography utils ----- */
.text-0 { color: var(--text-0) !important; }
.text-1 { color: var(--text-1) !important; }
.text-2 { color: var(--text-2) !important; }
.text-3 { color: var(--text-3) !important; }
.text-brand { color: var(--brand-500) !important; }
.text-success { color: var(--success) !important; }
.text-warning { color: var(--warning) !important; }
.text-danger  { color: var(--danger) !important; }
.text-info    { color: var(--info) !important; }

.fs-xs  { font-size: var(--fs-xs) !important; }
.fs-sm  { font-size: var(--fs-sm) !important; }
.fs-lg  { font-size: var(--fs-lg) !important; }
.fs-xl  { font-size: var(--fs-xl) !important; }
.fs-2xl { font-size: var(--fs-2xl) !important; }
.fs-3xl { font-size: var(--fs-3xl) !important; }

.fw-400 { font-weight: 400 !important; }
.fw-500 { font-weight: 500 !important; }
.fw-600 { font-weight: 600 !important; }
.fw-700 { font-weight: 700 !important; }
.fw-800 { font-weight: 800 !important; }

.text-tabular { font-variant-numeric: tabular-nums; font-feature-settings: var(--font-features-numeric); }
.text-mono { font-family: var(--font-mono); }
.text-display { font-family: var(--font-display); letter-spacing: var(--tracking-tighter); }
.text-balance { text-wrap: balance; }
.text-pretty { text-wrap: pretty; }
.text-truncate {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.text-gradient {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

.text-center { text-align: center !important; }
.text-end    { text-align: right !important; }
.text-start  { text-align: left !important; }

.text-uppercase { text-transform: uppercase; letter-spacing: 0.05em; }

/* ----- Bg / surface utils ----- */
.bg-0 { background: var(--bg-0) !important; }
.bg-1 { background: var(--bg-1) !important; }
.bg-2 { background: var(--bg-2) !important; }
.bg-3 { background: var(--bg-3) !important; }
.bg-4 { background: var(--bg-4) !important; }
.bg-brand-soft { background: var(--bg-brand-soft) !important; }

/* Elevation system (surface + shadow combinado) */
.elevation-0 { background: var(--bg-1); border: 1px solid var(--border); }
.elevation-1 { background: var(--bg-1); border: 1px solid var(--border); box-shadow: var(--shadow-sm); }
.elevation-2 { background: var(--bg-2); border: 1px solid var(--border-strong); box-shadow: var(--shadow-md); }
.elevation-3 { background: var(--bg-2); border: 1px solid var(--border-strong); box-shadow: var(--shadow-lg); }
.elevation-4 { background: var(--bg-3); border: 1px solid var(--border-bold); box-shadow: var(--shadow-xl); }

/* Glass / blur surfaces (sólo donde mobile soporta backdrop-filter) */
.surface-glass {
  background: var(--gradient-glass);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--border);
}

/* ----- Visually hidden ----- */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* ----- Page transitions ----- */
@keyframes fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fade-in var(--dur-page) var(--ease-out) both; }

@keyframes scale-in {
  from { opacity: 0; transform: scale(.96); }
  to   { opacity: 1; transform: scale(1); }
}
.scale-in { animation: scale-in var(--dur-slow) var(--ease-spring) both; }

@keyframes slide-up {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.slide-up { animation: slide-up var(--dur-slow) var(--ease-out) both; }

@keyframes pulse-soft {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.65; transform: scale(0.95); }
}
.pulse-soft { animation: pulse-soft 2s ease-in-out infinite; }

@keyframes pulse-ring {
  0%   { box-shadow: 0 0 0 0 var(--primary-glow); }
  100% { box-shadow: 0 0 0 24px transparent; }
}
.pulse-ring { animation: pulse-ring 1.6s ease-out infinite; }

@keyframes spin {
  to { transform: rotate(360deg); }
}
.spin { animation: spin 1s linear infinite; }

/* ----- Skeleton loading placeholder ----- */
@keyframes skeleton-shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.skeleton {
  background: linear-gradient(90deg,
    var(--bg-2) 0%,
    var(--bg-3) 50%,
    var(--bg-2) 100%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.4s ease-in-out infinite;
  border-radius: var(--r-3);
  color: transparent !important;
  user-select: none;
  pointer-events: none;
}
.skeleton-line { height: 0.9em; margin: 0.25em 0; }
.skeleton-line.lg { height: 1.4em; }
.skeleton-circle { border-radius: 50%; aspect-ratio: 1; }

/* ----- Spinner premium ----- */
.spinner {
  display: inline-block;
  width: 16px; height: 16px;
  border: 2px solid var(--border-strong);
  border-top-color: var(--brand-500);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: middle;
}
.spinner-sm { width: 12px; height: 12px; border-width: 1.5px; }
.spinner-lg { width: 28px; height: 28px; border-width: 3px; }

/* ----- Mobile-first visibility helpers ----- */
.hide-desktop { display: none !important; }
@media (min-width: 768px) {
  .hide-mobile  { display: none !important; }
  .hide-desktop { display: revert !important; }
}

/* ----- Stack & cluster primitives (mobile-first) ----- */
.stack    { display: flex; flex-direction: column; gap: var(--sp-4); }
.stack-sm { display: flex; flex-direction: column; gap: var(--sp-2); }
.stack-lg { display: flex; flex-direction: column; gap: var(--sp-6); }
.cluster  { display: flex; flex-wrap: wrap; gap: var(--sp-2); align-items: center; }
.cluster.justify-between { justify-content: space-between; }
.cluster.justify-center  { justify-content: center; }
.cluster.justify-end     { justify-content: flex-end; }