/*
 * Base de las maquetas: reinicio, tipografía, contenedor, cabecera, navegación inferior,
 * pie, foco, sección oscura y movimiento reducido. Solo usa tokens de tokens.css.
 */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--text-base--line-height);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  /* Hueco para la navegación inferior fija (DS-19) */
  padding-bottom: calc(76px + env(safe-area-inset-bottom));
}

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

h1,
h2,
h3,
h4,
p,
ul,
ol,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

ul[role="list"],
ol[role="list"],
.list-reset {
  list-style: none;
  padding: 0;
}

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

button {
  cursor: pointer;
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

/* ---------- Tipografía ---------- */
.serif,
.display,
.h1,
.h2,
.h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  letter-spacing: -0.01em;
}

.display {
  font-size: var(--text-4xl);
  line-height: var(--text-4xl--line-height);
}

.h1 {
  font-size: var(--text-3xl);
  line-height: var(--text-3xl--line-height);
}

.h2 {
  font-size: var(--text-2xl);
  line-height: var(--text-2xl--line-height);
}

.h3 {
  font-size: var(--text-xl);
  line-height: var(--text-xl--line-height);
}

@media (min-width: 640px) {
  .display {
    font-size: var(--text-5xl);
    line-height: var(--text-5xl--line-height);
  }
  .h1 {
    font-size: var(--text-4xl);
    line-height: var(--text-4xl--line-height);
  }
}

@media (min-width: 1280px) {
  .display {
    font-size: 4rem;
  }
}

.eyebrow {
  font-size: var(--text-sm);
  line-height: var(--text-sm--line-height);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.lead {
  font-size: var(--text-lg);
  line-height: var(--text-lg--line-height);
  color: var(--color-ink-muted);
}

.muted {
  color: var(--color-ink-muted);
}

.small {
  font-size: var(--text-sm);
  line-height: var(--text-sm--line-height);
}

.italic {
  font-style: italic;
}

.link {
  color: var(--color-accent-ink);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

.link:hover {
  text-decoration-thickness: 2px;
}

.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;
}

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.break-anywhere {
  overflow-wrap: anywhere;
}

/* ---------- Foco visible (DS-9) ---------- */
:focus {
  outline: none;
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: 4px;
}

.on-photo :focus-visible,
.section-dark :focus-visible {
  outline-color: var(--color-ivory);
  box-shadow: 0 0 0 6px var(--color-obsidian);
}

/* ---------- Saltar al contenido (DS-21) ---------- */
.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  z-index: 100;
  padding: 12px 16px;
  background: var(--color-obsidian);
  color: var(--color-ivory);
  border-radius: var(--radius-control);
  font-weight: 700;
  text-decoration: none;
}

.skip-link:focus-visible {
  top: 12px;
}

/* ---------- Contenedor ---------- */
.container {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: 16px;
}

.container--narrow {
  max-width: 720px;
}

.container--reading {
  max-width: 880px;
}

@media (min-width: 640px) {
  .container {
    padding-inline: 24px;
  }
}

@media (min-width: 1024px) {
  .container {
    padding-inline: 40px;
  }
}

.stack > * + * {
  margin-top: var(--stack-gap, 16px);
}

.section {
  padding-block: 40px;
}

@media (min-width: 1024px) {
  .section {
    padding-block: 64px;
  }
}

/* ---------- Marca ---------- */
.brand {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--color-ink);
  text-decoration: none;
}

.brand svg {
  height: 22px;
  width: auto;
}

/* ---------- Cabecera (DS-20, DS-21) ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgb(248 245 239 / 0.92);
  backdrop-filter: saturate(1.2) blur(10px);
  -webkit-backdrop-filter: saturate(1.2) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-base) var(--ease-out);
}

.site-header.is-scrolled {
  border-bottom-color: var(--color-line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 60px;
}

.site-header__nav {
  display: none;
}

.site-header__tools {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.city-button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid var(--color-control);
  border-radius: var(--radius-pill);
  background: transparent;
  font-size: var(--text-sm);
  font-weight: 600;
  max-width: 44vw;
}

.city-button svg {
  width: 16px;
  height: 16px;
  flex: none;
}

.lang-select {
  min-height: 44px;
  padding: 0 8px;
  border: 0;
  background: transparent;
  font-size: var(--text-sm);
  font-weight: 700;
  border-radius: var(--radius-control);
}

@media (max-width: 1023.98px) {
  .desktop-only {
    display: none !important;
  }
}

@media (min-width: 1024px) {
  .mobile-only {
    display: none !important;
  }
  .site-header__inner {
    min-height: 72px;
    gap: 24px;
  }
  .site-header__nav {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: 24px;
  }
  .site-header__link {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 14px;
    border-radius: var(--radius-pill);
    font-weight: 600;
    font-size: var(--text-sm);
    text-decoration: none;
    color: var(--color-ink-muted);
    transition: color var(--duration-fast) var(--ease-out), background-color var(--duration-fast) var(--ease-out);
  }
  .site-header__link:hover {
    color: var(--color-ink);
    background: rgb(23 23 23 / 0.05);
  }
  .site-header__link[aria-current="page"] {
    color: var(--color-ink);
    box-shadow: inset 0 -2px 0 var(--color-ink);
    border-radius: 0;
  }
  .brand svg {
    height: 24px;
  }
}

/* ---------- Navegación inferior (DS-19) ---------- */
.bottom-nav {
  position: fixed;
  inset: auto 0 0 0;
  z-index: 50;
  background: var(--color-surface);
  border-top: 1px solid var(--color-line);
  padding-bottom: env(safe-area-inset-bottom);
}

.bottom-nav ul {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  align-items: end;
  margin: 0 auto;
  max-width: 560px;
  padding: 0 4px;
  list-style: none;
}

.bottom-nav__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  min-height: 64px;
  padding: 8px 2px 10px;
  text-decoration: none;
  color: var(--color-ink-muted);
  font-size: 0.6875rem;
  line-height: 1.2;
  font-weight: 600;
  text-align: center;
  position: relative;
}

.bottom-nav__item svg {
  width: 24px;
  height: 24px;
}

.bottom-nav__label {
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bottom-nav__item[aria-current="page"] {
  color: var(--color-ink);
  font-weight: 800;
}

/* Activo: además del color, una barra superior (más que el color, DSC-1) */
.bottom-nav__item[aria-current="page"]::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 28px;
  height: 3px;
  margin-left: -14px;
  border-radius: 0 0 3px 3px;
  background: var(--color-ink);
}

/* Crear: círculo coral de 56 px que sobresale 12 px (clarificación A5) */
.bottom-nav__create {
  color: var(--color-ink);
  padding-top: 0;
}

.bottom-nav__create .create-orb {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  margin-top: -12px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-on-accent);
  box-shadow: 0 0 0 4px var(--color-surface), var(--shadow-raised);
  transition: transform var(--duration-fast) var(--ease-out);
}

.bottom-nav__create .create-orb svg {
  width: 30px;
  height: 30px;
}

.bottom-nav__create:hover .create-orb {
  transform: translateY(-2px);
}

.bottom-nav__create[aria-current="page"]::before {
  display: none;
}

.bottom-nav__create[aria-current="page"] .create-orb {
  box-shadow: 0 0 0 4px var(--color-surface), 0 0 0 6px var(--color-ink);
}

@media (min-width: 1024px) {
  .bottom-nav {
    display: none;
  }
  body {
    padding-bottom: 0;
  }
}

/* ---------- Pie (DS-21) ---------- */
.site-footer {
  margin-top: 48px;
  padding-block: 40px;
  border-top: 1px solid var(--color-line);
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  align-items: center;
  justify-content: space-between;
}

.site-footer ul {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  list-style: none;
  padding: 0;
}

.site-footer a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
}

.site-footer .tagline {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  color: var(--color-ink);
}

/* ---------- Sección oscura (DS-23) ---------- */
.section-dark {
  --color-bg: var(--color-obsidian);
  --color-surface: #222120;
  --color-ink: var(--color-ivory);
  --color-ink-muted: #cfc8bd;
  --color-line: #3a3836;
  --color-control: #a59e94;
  --color-accent-ink: #ff8a80;
  --color-focus: var(--color-ivory);
  background: var(--color-bg);
  color: var(--color-ink);
}

/* ---------- Barra de maqueta (no forma parte del diseño) ---------- */
.proto-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: repeating-linear-gradient(-45deg, #efeaf9, #efeaf9 10px, #f4f0fb 10px, #f4f0fb 20px);
  border-bottom: 1px dashed var(--color-lavender-ink);
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 0.75rem;
  color: var(--color-lavender-ink);
}

.proto-bar strong {
  font-weight: 700;
}

.proto-bar a,
.proto-bar button {
  min-height: 32px;
  padding: 0 10px;
  border: 1px solid var(--color-lavender-ink);
  border-radius: 6px;
  background: var(--color-white);
  color: var(--color-lavender-ink);
  font: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.proto-bar [aria-pressed="true"] {
  background: var(--color-lavender-ink);
  color: var(--color-white);
}

/* ---------- Movimiento ---------- */
.reveal {
  animation: reveal-up var(--duration-slow) var(--ease-out) both;
  animation-delay: calc(var(--i, 0) * 80ms);
}

@keyframes reveal-up {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 150ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 150ms !important;
  }
  .reveal {
    animation-name: fade-in;
    animation-delay: 0ms !important;
  }
}

/* Alto contraste de Windows (clarificación L2) */
@media (forced-colors: active) {
  :focus-visible {
    outline: 3px solid CanvasText;
  }
  .bottom-nav__item[aria-current="page"]::before {
    background: CanvasText;
  }
}

[hidden] {
  display: none !important;
}

/* Los titulares que reciben el foco por programa (cambio de paso) no muestran anillo */
h1[tabindex="-1"]:focus-visible,
h2[tabindex="-1"]:focus-visible,
main[tabindex="-1"]:focus-visible {
  outline: none;
  box-shadow: none;
}