/*
  Sostenibilidad 2030 — hoja de estilos principal
  Incluye reset moderno, tokens de diseño, utilidades y componentes clave
*/

/* ===== Reset moderno ===================================================== */
:root {
  color-scheme: light dark;
}

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

* {
  margin: 0;
  min-width: 0;
}

html,
body {
  height: 100%;
}

body {
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

button,
a {
  touch-action: manipulation;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.3em;
}

/* ===== Tokens de diseño ================================================== */
:root {
  --font-body: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-heading: "Playfair Display", "Times New Roman", serif;

  --color-surface: #0c1d2c;
  --color-surface-alt: rgba(12, 29, 44, 0.82);
  --color-elevated: rgba(15, 23, 42, 0.58);
  --color-text: #f8fafc;
  --color-muted: rgba(226, 232, 240, 0.78);
  --color-accent: #38bdf8;
  --color-accent-strong: #0ea5e9;
  --color-focus: #facc15;
  --color-border: rgba(148, 163, 184, 0.35);
  --color-hero-overlay: linear-gradient(120deg, rgba(12, 29, 44, 0.7) 0%, rgba(13, 148, 136, 0.4) 100%);
  --color-card-gradient-top: rgba(59, 130, 246, 0.25);
  --color-card-gradient-bottom: rgba(45, 212, 191, 0.28);

  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.5rem;
  --radius-pill: 999px;

  --shadow-sm: 0 4px 12px rgba(15, 23, 42, 0.25);
  --shadow-md: 0 16px 30px rgba(15, 23, 42, 0.28);
  --shadow-lg: 0 24px 50px rgba(14, 165, 233, 0.35);

  --z-base: 0;
  --z-content: 10;
  --z-nav: 900;
  --z-overlay: 950;
  --z-skip: 9999;

  --nav-height: 4.5rem;
  --transition-base: 220ms ease;
  --transition-long: 320ms ease;
}

[data-theme="dark"] {
  --color-surface: #020817;
  --color-surface-alt: rgba(15, 23, 42, 0.85);
  --color-elevated: rgba(15, 23, 42, 0.75);
  --color-text: #e2e8f0;
  --color-muted: rgba(148, 163, 184, 0.85);
  --color-accent: #38bdf8;
  --color-accent-strong: #0ea5e9;
  --color-focus: #facc15;
  --color-border: rgba(148, 163, 184, 0.3);
  --color-hero-overlay: linear-gradient(120deg, rgba(2, 8, 23, 0.75) 0%, rgba(14, 165, 233, 0.4) 100%);
  --color-card-gradient-top: rgba(56, 189, 248, 0.24);
  --color-card-gradient-bottom: rgba(94, 234, 212, 0.25);
}

[data-theme="light"] {
  --color-surface: #f8fafc;
  --color-surface-alt: rgba(248, 250, 252, 0.8);
  --color-elevated: rgba(255, 255, 255, 0.82);
  --color-text: #0f172a;
  --color-muted: rgba(51, 65, 85, 0.72);
  --color-accent: #2563eb;
  --color-accent-strong: #1d4ed8;
  --color-focus: #f97316;
  --color-border: rgba(100, 116, 139, 0.25);
  --color-hero-overlay: linear-gradient(120deg, rgba(15, 23, 42, 0.55) 0%, rgba(37, 99, 235, 0.35) 100%);
  --color-card-gradient-top: rgba(37, 99, 235, 0.18);
  --color-card-gradient-bottom: rgba(45, 212, 191, 0.22);
}

body {
  background-color: var(--color-surface);
  color: var(--color-text);
  font-family: var(--font-body);
  overflow-x: hidden;
  transition: background-color var(--transition-long), color var(--transition-long);
}

main {
  position: relative;
  z-index: var(--z-content);
}

::selection {
  background: color-mix(in srgb, var(--color-accent) 70%, transparent);
  color: #fff;
}

/* ===== Tipografía base =================================================== */
:is(h1, h2, h3, h4, h5, h6) {
  font-family: var(--font-heading);
  color: var(--color-text);
  line-height: 1.15;
}

p,
li {
  color: var(--color-muted);
}

strong {
  color: var(--color-text);
}

/* ===== Accesibilidad ===================================================== */
.skip-link {
  position: absolute;
  top: -100vh;
  left: var(--space-lg);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-accent);
  color: #fff;
  font-weight: 600;
  border-radius: var(--radius-pill);
  transition: top var(--transition-base);
  z-index: var(--z-skip);
}

.skip-link:focus-visible {
  top: var(--space-lg);
}

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

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

[data-theme="dark"] :focus-visible {
  outline-color: var(--color-focus);
}

/* ===== Utilidades de layout ============================================= */
.container {
  width: min(1080px, 92vw);
  margin-inline: auto;
}

.stack {
  display: grid;
  gap: var(--space-lg);
}

.stack[data-space="sm"] {
  gap: var(--space-sm);
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-md);
  align-items: center;
}

.cluster[data-align="space-between"] {
  justify-content: space-between;
}

.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid[data-columns="2"] {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.scrollytelling {
  position: relative;
  display: grid;
  min-height: 100vh;
  scroll-snap-align: start;
  padding: calc(var(--nav-height) + var(--space-2xl)) 5vw var(--space-3xl);
}

.scrollytelling[data-align="center"] {
  align-items: center;
}

.scroll-snap-inline {
  scroll-snap-type: x mandatory;
  scroll-padding: var(--space-lg);
}

.scroll-snap-inline > * {
  scroll-snap-align: start;
}

/* ===== Componentes utilitarios ========================================== */
.timeline {
  position: relative;
  display: grid;
  gap: var(--space-xl);
  padding-left: var(--space-xl);
}

.timeline::before {
  content: "";
  position: absolute;
  inset-block: 0;
  left: calc(var(--space-md));
  width: 2px;
  background: color-mix(in srgb, var(--color-accent) 65%, transparent);
}

.timeline__item {
  position: relative;
  padding-left: var(--space-lg);
}

.timeline__item::before {
  content: "";
  position: absolute;
  top: 0.35rem;
  left: calc(-1 * var(--space-lg));
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 3px solid var(--color-surface);
  background: var(--color-accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-accent) 25%, transparent);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  padding: var(--space-2xs) var(--space-sm);
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-accent) 15%, transparent);
  color: var(--color-text);
  border: 1px solid color-mix(in srgb, var(--color-accent) 35%, transparent);
  font-weight: 600;
}

.flip-card {
  perspective: 1200px;
}

.flip-card__inner {
  position: relative;
  width: 100%;
  transform-style: preserve-3d;
  transition: transform 450ms ease;
}

.flip-card:is(:hover, :focus-within) .flip-card__inner {
  transform: rotateY(180deg);
}

.flip-card__face {
  position: absolute;
  inset: 0;
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  background: var(--color-elevated);
  border: 1px solid var(--color-border);
  backface-visibility: hidden;
  display: grid;
  gap: var(--space-md);
}

.flip-card__face--back {
  transform: rotateY(180deg);
  background: color-mix(in srgb, var(--color-accent) 18%, var(--color-elevated));
}

.timeline-chapter {
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  background: var(--color-elevated);
  border: 1px solid var(--color-border);
  display: grid;
  gap: var(--space-sm);
}

/* ===== Navegación fija =================================================== */
header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-height);
  z-index: var(--z-nav);
  backdrop-filter: blur(18px);
  background: var(--color-surface-alt);
  border-bottom: 1px solid var(--color-border);
}

nav {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1rem, 3vw, 2rem);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand svg {
  width: 42px;
  height: 42px;
}

.nav-links {
  display: flex;
  gap: clamp(1rem, 3vw, 1.75rem);
  list-style: none;
  padding: 0;
}

.nav-links a {
  position: relative;
  font-weight: 600;
  padding-block: var(--space-2xs);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.4rem;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: currentColor;
  transition: transform var(--transition-base);
}

.nav-links a:is(:hover, :focus-visible, [aria-current="page"], .is-active)::after {
  transform: scaleX(1);
}

.nav-links a:is([aria-current="page"], .is-active) {
  color: var(--color-accent-strong);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-2xs) var(--space-sm);
  border-radius: var(--radius-pill);
  border: 1px solid currentColor;
  background: transparent;
  cursor: pointer;
  font-weight: 600;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.theme-toggle:is(:hover, :focus-visible) {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* ===== Overlay de transiciones ========================================== */
.transition-overlay {
  position: fixed;
  inset: 0;
  z-index: 1200;
  background: rgba(15, 23, 42, 0.92);
  pointer-events: none;
  opacity: 0;
  clip-path: circle(0% at 50% 50%);
}

[data-theme="dark"] .transition-overlay {
  background: rgba(15, 23, 42, 0.94);
}

/* ===== Hero ============================================================== */
#hero {
  position: relative;
  min-height: 100vh;
  color: #fff;
  padding: 0;
  scroll-snap-align: start;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: var(--z-base);
  overflow: hidden;
}

.hero-media img,
.hero-media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.65);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: var(--color-hero-overlay);
  z-index: calc(var(--z-base) + 1);
}

.hero-content {
  position: relative;
  z-index: var(--z-content);
  padding: calc(var(--nav-height) + var(--space-3xl)) 8vw var(--space-3xl);
  display: grid;
  gap: var(--space-xl);
  max-width: 960px;
}

.hero-content h1 {
  font-size: clamp(2.8rem, 6vw, 5rem);
  line-height: 1.05;
  color: #fff;
}

.hero-content p {
  font-size: clamp(1.1rem, 2.4vw, 1.6rem);
  color: color-mix(in srgb, #ffffff 88%, transparent);
  max-width: 640px;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-xl);
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-strong) 100%);
  color: #0f172a;
  font-weight: 700;
  text-decoration: none;
  transform: perspective(600px) rotateX(0deg) rotateY(0deg);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  box-shadow: var(--shadow-lg);
}

.hero-cta:is(:hover, :focus-visible) {
  transform: perspective(600px) rotateX(6deg) rotateY(-6deg) translateY(-4px);
  box-shadow: 0 30px 55px rgba(14, 165, 233, 0.45);
}

.parallax-layer {
  position: absolute;
  pointer-events: none;
  z-index: calc(var(--z-base) + 2);
  transition: transform 900ms ease;
}

.parallax-layer[data-depth="0.2"] {
  top: 10%;
  left: 6%;
}

.parallax-layer[data-depth="0.6"] {
  bottom: 14%;
  right: 8%;
}

.split-ready span {
  display: inline-block;
}

/* ===== Secciones de retos =============================================== */
.reto-section {
  position: relative;
  background: radial-gradient(circle at top, var(--color-card-gradient-top), transparent 60%);
  overflow: hidden;
}

.reto-section:nth-of-type(even) {
  background: radial-gradient(circle at bottom, var(--color-card-gradient-bottom), transparent 65%);
}

.reto-content {
  position: relative;
  z-index: calc(var(--z-content) + 1);
  display: grid;
  gap: var(--space-lg);
  padding: var(--space-3xl);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(14px);
  background: var(--color-elevated);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  margin-inline: auto;
  max-width: 960px;
}

.reto-icon {
  display: grid;
  place-items: center;
  width: clamp(90px, 11vw, 150px);
  aspect-ratio: 1 / 1;
  margin: 0;
  justify-self: start;
  border-radius: 50%;
  background: color-mix(in srgb, var(--color-accent) 18%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--color-accent) 28%, transparent),
    0 18px 35px rgba(15, 23, 42, 0.28);
  overflow: hidden;
}

.reto-icon__animation {
  width: 76%;
  height: 76%;
  display: grid;
  place-items: center;
}

.reto-title {
  font-size: clamp(2rem, 4vw, 2.9rem);
  color: var(--color-text);
}

.reto-content p {
  color: var(--color-muted);
}

.reto-parallax {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.reto-parallax svg {
  position: absolute;
  width: clamp(120px, 12vw, 180px);
  opacity: 0.35;
}

.reto-parallax svg:nth-child(1) {
  top: 12%;
  left: 8%;
}

.reto-parallax svg:nth-child(2) {
  bottom: 18%;
  right: 12%;
}

.kpi-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.kpi {
  flex: 1 1 220px;
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-surface-alt) 70%, transparent);
  display: grid;
  gap: var(--space-xs);
}

.kpi strong {
  font-size: clamp(2.2rem, 4vw, 2.8rem);
  font-family: var(--font-heading);
}

/* ===== Mapa y panel ====================================================== */
#mapa-global {
  position: relative;
  --map-size: clamp(520px, min(74vw, 85vh), 1040px);
  --panel-size: clamp(420px, 36vw, 760px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  justify-items: center;
  gap: clamp(var(--space-lg), 4vw, var(--space-3xl));
  align-items: center;
  align-content: center;
  padding: calc(var(--nav-height) + var(--space-2xl)) clamp(2vw, 4vw, 6vw) var(--space-2xl);
  max-width: min(2040px, 100vw);
  margin-inline: auto;
  min-height: calc(100vh - var(--nav-height) - var(--space-xl));
}

#mapa-global .map-container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  width: min(100%, var(--map-size));
  max-width: var(--map-size);
  height: clamp(360px, 65vh, 720px);
  flex: none;
  box-shadow: var(--shadow-sm);
  display: flex;
  background: radial-gradient(circle at 30% 30%, rgba(56, 189, 248, 0.12), transparent 65%),
    radial-gradient(circle at 70% 70%, rgba(14, 165, 233, 0.1), transparent 70%),
    color-mix(in srgb, var(--color-surface-alt) 60%, transparent);
}

#mapa-global #map {
  width: 100%;
  height: 100%;
  flex: 1;
}

#mapa-global .leaflet-container {
  background: #9ecdf5;
}

.map-panel {
  padding: var(--space-2xl);
  border-radius: var(--radius-lg);
  background: var(--color-elevated);
  backdrop-filter: blur(12px);
  display: grid;
  gap: var(--space-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  width: min(100%, var(--panel-size));
  max-height: none;
  grid-template-rows: auto auto auto auto;
  align-content: start;
  overflow: visible;
}

@media (min-width: 960px) {
  #mapa-global {
    grid-template-columns: minmax(0, var(--map-size)) minmax(0, var(--panel-size));
    justify-items: stretch;
    align-items: stretch;
  }

  #mapa-global .map-container {
    justify-self: stretch;
  }

  #mapa-global .map-panel {
    width: 100%;
    height: 100%;
    align-self: stretch;
  }
}

.map-panel [data-retos-list] {
  min-height: 0;
}

.map-panel .map-details {
  min-height: 0;
  display: grid;
  gap: clamp(var(--space-sm), 2vw, var(--space-lg));
  padding: clamp(var(--space-lg), 3vw, var(--space-2xl));
  text-align: center;
  justify-items: center;
  background: color-mix(in srgb, var(--color-surface-alt) 18%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-border) 60%, transparent);
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
}

.map-panel .map-details::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(140deg, rgba(14, 165, 233, 0.08), rgba(16, 185, 129, 0.08));
  opacity: 0;
  transition: opacity var(--transition-long);
  pointer-events: none;
}

.map-panel[data-active-reto] .map-details::before {
  opacity: 1;
}

.map-panel .map-details > * {
  position: relative;
  z-index: 1;
}

.map-panel .map-details img {
  display: block;
  width: min(100%, 280px);
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-inline: auto;
}

.map-panel .map-details a[data-map-link] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xs);
  padding: var(--space-xs) clamp(var(--space-md), 4vw, var(--space-xl));
  border-radius: var(--radius-pill);
  font-weight: 600;
  text-decoration: none;
  color: var(--color-accent-strong);
  background: color-mix(in srgb, var(--color-accent) 22%, transparent);
  box-shadow: 0 8px 24px rgba(14, 165, 233, 0.25);
  transition: background-color var(--transition-base), color var(--transition-base),
    transform var(--transition-base), box-shadow var(--transition-base);
}

.map-panel .map-details a[data-map-link]:is(:hover, :focus-visible) {
  color: var(--color-surface);
  background: color-mix(in srgb, var(--color-accent-strong) 92%, transparent);
  transform: translateY(-3px) scale(1.01);
  box-shadow: var(--shadow-md);
}

.map-panel[data-active-reto] .reto-card.is-active {
  box-shadow: var(--shadow-md);
}

.map-marker {
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-size: clamp(2.1rem, 3vw, 2.6rem);
  color: #0f172a;
  text-shadow: 0 4px 12px rgba(15, 23, 42, 0.35);
}

.leaflet-marker-icon {
  transition: none !important;
}

.leaflet-marker-icon:is(:hover, :focus) {
  transform: none !important;
  filter: none !important;
}

.map-marker--mini {
  font-size: clamp(1.6rem, 2.5vw, 1.9rem);
}

.leaflet-popup-content {
  font-size: clamp(1rem, 1.8vw, 1.1rem);
  line-height: 1.6;
  width: clamp(320px, 60vw, 560px);
  max-width: none;
  margin: 0;
  padding: clamp(var(--space-md), 2.4vw, var(--space-xl));
  box-sizing: border-box;
}

.leaflet-popup-content h3 {
  font-size: clamp(1.2rem, 2.1vw, 1.4rem);
  margin-bottom: 0.4rem;
}

.leaflet-popup-content-wrapper {
  border-radius: clamp(1.4rem, 4vw, 2.2rem) clamp(1.4rem, 4vw, 2.2rem) var(--radius-lg)
    var(--radius-lg);
  border: 1px solid color-mix(in srgb, var(--color-border) 45%, transparent);
  box-shadow: var(--shadow-lg);
  background: color-mix(in srgb, var(--color-elevated) 75%, var(--color-surface));
  backdrop-filter: blur(14px);
}

.map-popup {
  display: grid;
  gap: clamp(var(--space-sm), 1.4vw, var(--space-md));
  width: clamp(320px, 60vw, 560px);
  justify-items: center;
  animation: map-popup-rise var(--transition-long);
}

.map-popup header {
  width: 100%;
}

.map-popup header h3 {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  margin: 0;
  padding: clamp(var(--space-2xs), 1vw, var(--space-sm))
    clamp(var(--space-sm), 1.8vw, var(--space-md));
  background: color-mix(in srgb, var(--color-surface-alt) 45%, transparent);
  border-radius: var(--radius-md);
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--color-border) 35%, transparent);
  font-family: var(--font-heading);
  letter-spacing: 0.01em;
}

.map-popup > :is(header, p) {
  justify-self: stretch;
  width: 100%;
}

.map-popup__media {
  display: grid;
  place-items: center;
  inline-size: clamp(200px, 46%, 260px);
  padding: clamp(var(--space-xs), 1.5vw, var(--space-md));
  background: color-mix(in srgb, var(--color-accent) 12%, transparent);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  justify-self: center;
  margin-inline: auto;
}

.map-popup__media img {
  display: block;
  margin-inline: auto;
}

.map-popup__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.18), transparent 55%);
  opacity: 0.6;
  pointer-events: none;
}

.map-popup__media img {
  width: min(100%, 240px);
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-long), box-shadow var(--transition-long);
}

.map-popup__media:hover img,
.map-popup__media:focus-within img {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

.map-popup__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xs);
  padding: var(--space-xs) clamp(var(--space-md), 4vw, var(--space-xl));
  min-width: clamp(10rem, 60%, 14rem);
  font-weight: 600;
  color: var(--color-accent-strong);
  background: color-mix(in srgb, var(--color-accent) 20%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-accent-strong) 45%, transparent);
  border-radius: var(--radius-pill);
  box-shadow: 0 8px 24px rgba(14, 165, 233, 0.3);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: background-color var(--transition-base), color var(--transition-base),
    transform var(--transition-base), box-shadow var(--transition-base);
  justify-self: center;
  margin-inline: auto;
}

.map-popup__link::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.22), transparent 65%);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.map-popup__link:is(:hover, :focus-visible) {
  background: color-mix(in srgb, var(--color-accent-strong) 92%, transparent);
  color: var(--color-surface);
  transform: translateY(-3px) scale(1.01);
  box-shadow: var(--shadow-md);
}

.map-popup__link:is(:hover, :focus-visible)::after {
  opacity: 1;
}

@media (max-width: 600px) {
  .leaflet-popup-content,
  .map-popup {
    width: min(88vw, 420px);
  }
}

@keyframes map-popup-rise {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.98);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.map-panel a {
  color: var(--color-accent-strong);
  font-weight: 600;
}

.map-panel a:focus-visible {
  outline-color: var(--color-accent-strong);
}

/* ===== Tarjetas de retos adicionales ===================================== */
.map-card-scroller {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: clamp(240px, 72vw, 320px);
  gap: clamp(var(--space-md), 3vw, var(--space-xl));
  overflow-x: auto;
  overflow-y: hidden;
  padding-block-end: var(--space-sm);
  padding-inline: clamp(var(--space-sm), 4vw, var(--space-lg));
  margin-inline: calc(-1 * clamp(var(--space-sm), 4vw, var(--space-lg)));
  scroll-snap-type: x mandatory;
  overscroll-behavior-x: contain;
  -webkit-overflow-scrolling: touch;
}

.map-card-scroller::after {
  content: "";
  display: block;
  width: clamp(0px, 10vw, var(--space-2xl));
}

.map-card-scroller::-webkit-scrollbar {
  height: 8px;
}

.map-card-scroller::-webkit-scrollbar-track {
  background: color-mix(in srgb, var(--color-surface-alt) 40%, transparent);
  border-radius: 999px;
}

.map-card-scroller::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--color-accent-strong) 45%, transparent);
  border-radius: 999px;
}

.map-panel [data-retos-list] .reto-card {
  --pointer-x: 50%;
  --pointer-y: 50%;
  position: relative;
  z-index: 0;
  height: 100%;
  scroll-snap-align: center;
  scroll-snap-stop: always;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid color-mix(in srgb, var(--color-border) 70%, transparent);
  background:
    radial-gradient(circle at var(--pointer-x) var(--pointer-y), color-mix(in srgb, var(--color-accent) 28%, transparent) 0%,
      transparent 58%),
    color-mix(in srgb, var(--color-elevated) 92%, rgba(15, 23, 42, 0.04));
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base),
    border-color var(--transition-base), background 220ms ease;
  isolation: isolate;
}

.map-panel [data-retos-list] .reto-card::before,
.map-panel [data-retos-list] .reto-card::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  z-index: -1;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.map-panel [data-retos-list] .reto-card::before {
  background: radial-gradient(circle at 20% 15%, rgba(14, 165, 233, 0.25), transparent 55%);
  transform: scale(0.94);
}

.map-panel [data-retos-list] .reto-card::after {
  background: linear-gradient(140deg, rgba(14, 165, 233, 0.12), rgba(16, 185, 129, 0.16));
  transform: scale(0.98);
}

.map-panel [data-retos-list] .reto-card[data-hover-active='true'],
.map-panel [data-retos-list] .reto-card:is(:hover, :focus-visible, :focus-within) {
  transform: translateY(-10px) scale(1.01);
  box-shadow: var(--shadow-lg);
  border-color: color-mix(in srgb, var(--color-accent-strong) 55%, transparent);
}

.map-panel [data-retos-list] .reto-card[data-hover-active='true']::before,
.map-panel [data-retos-list] .reto-card[data-hover-active='true']::after,
.map-panel [data-retos-list] .reto-card:is(:hover, :focus-visible, :focus-within)::before,
.map-panel [data-retos-list] .reto-card:is(:hover, :focus-visible, :focus-within)::after {
  opacity: 1;
  transform: scale(1);
}

.map-panel [data-retos-list] .reto-card__image {
  display: block;
  width: min(100%, 260px);
  margin-inline: auto;
}

@media (prefers-reduced-motion: reduce) {
  .map-panel [data-retos-list] .reto-card {
    transition: none;
  }

  .map-panel [data-retos-list] .reto-card[data-hover-active='true'],
  .map-panel [data-retos-list] .reto-card:is(:hover, :focus-visible, :focus-within) {
    transform: none;
  }

  .map-panel [data-retos-list] .reto-card::before,
  .map-panel [data-retos-list] .reto-card::after {
    transition: none;
  }

  .map-popup {
    animation: none;
  }

  .map-popup__media img,
  .map-popup__link {
    transition: none;
  }
}

.reto-card {
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  background: var(--color-elevated);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: var(--space-sm);
}

.reto-card__title {
  font-size: clamp(1.2rem, 2vw, 1.35rem);
}

.reto-card__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.reto-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.reto-card__map,
.reto-card__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xs);
  padding: var(--space-2xs) var(--space-sm);
  border-radius: var(--radius-pill);
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
}

.reto-card__map {
  background: color-mix(in srgb, var(--color-accent-strong) 12%, transparent);
  color: var(--color-accent-strong);
  border-color: color-mix(in srgb, var(--color-accent-strong) 50%, transparent);
}

.reto-card__map:focus-visible {
  outline: 3px solid var(--color-accent-strong);
  outline-offset: 2px;
}

.reto-card__link {
  color: var(--color-accent-strong);
}

.reto-card.is-active {
  border-color: var(--color-accent-strong);
  box-shadow: var(--shadow-md);
}

@media (pointer: coarse) {
  .map-panel [data-retos-list] .reto-card {
    background: color-mix(in srgb, var(--color-elevated) 92%, rgba(15, 23, 42, 0.04));
  }
}

/* ===== Timeline destacado =============================================== */
.timeline-panel {
  display: grid;
  gap: var(--space-lg);
  padding: var(--space-2xl);
  border-radius: var(--radius-lg);
  background: var(--color-elevated);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

/* ===== Footer ============================================================ */
footer {
  padding: var(--space-3xl) 5vw;
  background: color-mix(in srgb, var(--color-surface) 90%, #000 10%);
  color: var(--color-muted);
  display: grid;
  gap: var(--space-md);
}

footer small {
  color: color-mix(in srgb, var(--color-muted) 85%, transparent);
}

/* ===== Preferencias de movimiento ======================================= */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
    scroll-behavior: auto !important;
  }

  body {
    scroll-behavior: auto;
    scroll-snap-type: none;
  }

  .parallax-layer,
  .hero-cta,
  .flip-card__inner {
    transition: none !important;
    transform: none !important;
  }
}

/* ===== Media queries ===================================================== */
@media (max-width: 639px) {
  body {
    scroll-snap-type: none;
  }

  header {
    backdrop-filter: blur(20px);
  }

  .nav-links {
    display: none;
  }

  .hero-content {
    padding: calc(var(--nav-height) + var(--space-2xl)) 10vw var(--space-3xl);
  }

  .hero-content p {
    font-size: 1.05rem;
  }

  .reto-content {
    padding: var(--space-2xl);
  }

  .kpi-group {
    flex-direction: column;
  }

  #mapa-global {
    --map-size: clamp(240px, 78vw, 420px);
    grid-template-columns: 1fr;
    justify-items: center;
    min-height: auto;
    padding: calc(var(--nav-height) + var(--space-xl)) clamp(5vw, 8vw, 10vw) var(--space-xl);
  }

  #mapa-global .map-container {
    width: min(100%, var(--map-size));
  }

  .map-panel {
    width: min(100%, 560px);
    max-height: none;
  }
}

@media (min-width: 640px) {
  .nav-links {
    display: flex;
  }

  .hero-content {
    padding-inline: clamp(6vw, 8vw, 10vw);
  }

  .scrollytelling[data-columns="2"] {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-2xl);
  }

  #mapa-global {
    grid-template-columns: minmax(360px, var(--map-size)) minmax(360px, 1fr);
    justify-items: stretch;
  }
}

@media (min-width: 1024px) {
  nav {
    padding-inline: 2.5rem;
  }

  #mapa-global {
    --map-size: clamp(640px, min(62vw, 78vh), 1220px);
    padding: calc(var(--nav-height) + var(--space-2xl)) clamp(3vw, 4vw, 6vw) var(--space-2xl);
    grid-template-columns: minmax(540px, 1.75fr) minmax(420px, 1fr);
  }

  .hero-content {
    padding-top: calc(var(--nav-height) + var(--space-3xl));
  }

  .scrollytelling[data-columns="2"] {
    align-items: center;
  }

  .map-card-scroller {
    grid-auto-columns: clamp(240px, 28vw, 320px);
    gap: clamp(var(--space-md), 2.5vw, var(--space-xl));
    padding-inline: clamp(var(--space-md), 3vw, var(--space-xl));
    margin-inline: calc(-1 * clamp(var(--space-md), 3vw, var(--space-xl)));
  }
}

/* ===== Estado del modo oscuro =========================================== */
[data-theme="dark"] body {
  background-color: var(--color-surface);
}

[data-theme="dark"] .hero-cta {
  color: #02111f;
}

[data-theme="dark"] .reto-content,
[data-theme="dark"] .map-panel,
[data-theme="dark"] .timeline-panel,
[data-theme="dark"] .reto-card,
[data-theme="dark"] .timeline-chapter,
[data-theme="dark"] .kpi {
  background: var(--color-elevated);
}

[data-theme="dark"] footer {
  background: color-mix(in srgb, var(--color-surface) 94%, #000 6%);
}

/* ===== Scroll snap para secciones ======================================= */
section {
  min-height: 100vh;
  display: grid;
  align-items: center;
  scroll-snap-align: start;
  padding: calc(var(--nav-height) + var(--space-2xl)) 5vw var(--space-3xl);
  position: relative;
}

section::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--color-accent) 35%, transparent), transparent);
}

/* ===== Zonas especiales ================================================== */
.decorative-svg {
  width: clamp(120px, 16vw, 180px);
  height: auto;
  opacity: 0.45;
}

/* ===== Chips para filtros de mapa ======================================= */
.map-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.map-filters .chip {
  cursor: pointer;
}

.map-filters .chip[aria-pressed="true"] {
  background: var(--color-accent);
  color: #0f172a;
  border-color: transparent;
}