/* Tornar — design tokens, then components.
   Motion: short, critically damped (no overshoot), only transform/opacity; everything
   respects prefers-reduced-motion, -transparency and -contrast. */

:root {
  color-scheme: light dark;

  --lost: #c2410c;
  --found: #2b8a3e;
  --reunited: #1c6fd1;
  --accent: #1c6fd1;
  --accent-ink: #fff;
  --ink: #1d232a;
  --muted: #5f6b78;
  --bg: #f5f3ef;
  --card: #ffffff;
  --field: #ffffff;
  --line: #e2ddd5;
  --hairline: rgb(0 0 0 / 0.08);
  --chrome: rgb(255 255 255 / 0.72);   /* translucent header material */
  --scrim: rgb(20 24 30 / 0.38);
  --shadow-s: 0 1px 2px rgb(0 0 0 / 0.06);
  --shadow-l: 0 24px 60px rgb(0 0 0 / 0.22), 0 2px 8px rgb(0 0 0 / 0.08);

  --radius-s: 8px;
  --radius-m: 12px;
  --radius-l: 18px;

  --ease-out: cubic-bezier(0.2, 0.8, 0.2, 1);   /* fast start, gentle settle */
  --press: 90ms;
  --quick: 160ms;
  --sheet: 240ms;
}

@media (prefers-color-scheme: dark) {
  :root {
    --lost: #f0703a;
    --found: #4cc068;
    --reunited: #5aa2f0;
    --accent: #4d9bf0;
    --accent-ink: #0b1420;
    --ink: #e8ebee;
    --muted: #9aa5b1;
    --bg: #121519;
    --card: #1b1f25;
    --field: #14181d;
    --line: #2c333c;
    --hairline: rgb(255 255 255 / 0.08);
    --chrome: rgb(27 31 37 / 0.72);
    --scrim: rgb(0 0 0 / 0.55);
    --shadow-s: 0 1px 2px rgb(0 0 0 / 0.4);
    --shadow-l: 0 24px 60px rgb(0 0 0 / 0.55), 0 2px 8px rgb(0 0 0 / 0.3);
  }
  .leaflet-tile-pane { filter: brightness(0.82) saturate(0.85); }
}

/* ---------- Base & typography ---------- */

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 1rem/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

/* Size-specific tracking and leading: tighter as text grows, looser as it shrinks. */
h2 { font-size: 1.5rem; line-height: 1.15; letter-spacing: -0.018em; font-weight: 700; margin: 0 0 0.75rem; }
h3 { font-size: 1.0625rem; line-height: 1.25; letter-spacing: -0.008em; font-weight: 600; margin: 0 0 0.25rem; }
.view-title { font-size: 1.75rem; line-height: 1.1; letter-spacing: -0.022em; margin: 0.5rem 0 1rem; }
.hint { color: var(--muted); font-size: 0.8125rem; line-height: 1.4; letter-spacing: 0.01em; margin: 0; }
.error, .field-error { color: var(--lost); font-size: 0.875rem; font-weight: 500; margin: 0; }
.error { min-height: 1.25em; }

:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 55%, transparent);
  outline-offset: 2px;
}

/* ---------- Header: translucent material, scroll-edge shadow ---------- */

header {
  position: sticky; top: 0; z-index: 1000;
  display: flex; align-items: center; gap: 1rem;
  padding: 0.6rem 1rem;
  background: var(--chrome);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  backdrop-filter: blur(20px) saturate(180%);
  transition: box-shadow var(--quick) var(--ease-out);
}
header.scrolled { box-shadow: 0 1px 0 var(--hairline), 0 6px 20px rgb(0 0 0 / 0.06); }

.brand {
  font-weight: 750; font-size: 1.25rem; letter-spacing: -0.02em;
  text-decoration: none; color: var(--ink); white-space: nowrap;
}

nav { display: flex; gap: 0.25rem; flex: 1; overflow-x: auto; scrollbar-width: none; }
nav button {
  background: none; border: none; color: var(--muted); font-weight: 500;
  padding: 0.45rem 0.8rem; border-radius: 999px; white-space: nowrap;
}
nav button[aria-current="page"] { background: color-mix(in srgb, var(--ink) 8%, transparent); color: var(--ink); font-weight: 600; }
#session { display: flex; gap: 0.5rem; align-items: center; color: var(--muted); font-size: 0.9rem; white-space: nowrap; }

/* ---------- Controls ---------- */

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

button {
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: var(--radius-s);
  cursor: pointer;
  font-weight: 500;
  /* release eases back; press (below) is near-instant */
  transition: transform var(--quick) var(--ease-out), background-color var(--quick), opacity var(--quick);
}
/* Feedback lives on the press (pointer-down), and it's instant. */
button:active:not(:disabled) { transform: scale(0.97); transition-duration: var(--press); }
button:disabled { opacity: 0.55; cursor: progress; }
button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
button.danger { color: var(--lost); border-color: color-mix(in srgb, var(--lost) 35%, var(--line)); }
button.link { border: none; background: none; color: var(--accent); padding: 0; font-weight: 600; }
button.link.danger { color: var(--lost); }
button[aria-busy="true"] { cursor: progress; }

input, select, textarea {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  background: var(--field);
  transition: border-color var(--quick), box-shadow var(--quick);
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent);
}
/* Inline validation: only after the user has interacted with the field. */
input:user-invalid, select:user-invalid, textarea:user-invalid { border-color: var(--lost); }

/* ---------- Layout ---------- */

main { padding: 1rem; max-width: 1300px; margin: 0 auto; }
.view { display: none; }
.view.active { display: block; }

.toolbar { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 0.75rem; }
.toolbar input { flex: 1; min-width: 200px; width: auto; }
.toolbar select { width: auto; }

.explore { display: grid; grid-template-columns: 1fr 380px; gap: 1rem; height: calc(100dvh - 150px); }
#map { border-radius: var(--radius-m); box-shadow: var(--shadow-s), 0 0 0 1px var(--hairline); }
#results { overflow-y: auto; display: flex; flex-direction: column; gap: 0.5rem; padding: 2px; }
#results[aria-busy="true"] > .card { opacity: 0.55; transition: opacity var(--quick); }
.status { color: var(--muted); font-size: 0.875rem; text-align: center; padding: 0.5rem; }

.card {
  background: var(--card);
  border-radius: var(--radius-m);
  padding: 1rem;
  box-shadow: var(--shadow-s), 0 0 0 1px var(--hairline);
}
.list { display: flex; flex-direction: column; gap: 0.5rem; max-width: 760px; margin: 0 auto; }
.empty { color: var(--muted); text-align: center; padding: 2rem; }

/* ---------- Pet cards ---------- */

.pet {
  display: flex; gap: 0.75rem; padding: 0.6rem; cursor: pointer;
  transition: transform var(--quick) var(--ease-out), box-shadow var(--quick);
}
.pet:hover, .pet.linked { box-shadow: var(--shadow-s), 0 0 0 2px color-mix(in srgb, var(--accent) 55%, transparent); }
.pet:active { transform: scale(0.985); transition-duration: var(--press); }
.pet img, .pet .noimg {
  width: 72px; height: 72px; object-fit: cover; border-radius: var(--radius-s);
  background: var(--bg); flex-shrink: 0;
}
.pet .noimg { display: grid; place-items: center; font-size: 2rem; }
.pet p { margin: 0; color: var(--muted); font-size: 0.875rem; line-height: 1.4; }

.badge {
  display: inline-block; padding: 0.1rem 0.5rem; border-radius: 999px;
  font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.03em; text-transform: uppercase;
  color: #fff; vertical-align: 0.12em;
}
.badge.lost { background: var(--lost); }
.badge.found { background: var(--found); }
.badge.reunited { background: var(--reunited); }
.badge.closed { background: var(--muted); }

.code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace; font-weight: 700; letter-spacing: 0.05em;
  background: var(--bg); border-radius: 6px; padding: 0.05rem 0.4rem; font-size: 0.8125rem;
  box-shadow: 0 0 0 1px var(--hairline);
}
.code-big { font-size: 1.25rem; padding: 0.2rem 0.6rem; }

/* ---------- Forms ---------- */

.form { display: flex; flex-direction: column; gap: 0.85rem; max-width: 760px; margin: 0 auto; }
.form label { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.875rem; font-weight: 500; color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 0.75rem; }
fieldset { border: none; border-radius: var(--radius-m); padding: 0.85rem; margin: 0; background: color-mix(in srgb, var(--bg) 70%, var(--card)); }
legend { font-weight: 600; font-size: 0.9375rem; padding: 0; margin-bottom: 0.5rem; float: left; width: 100%; }
legend + * { clear: both; }
#pick-map { height: 320px; border-radius: var(--radius-s); margin-bottom: 0.75rem; }

/* Segmented control: one choice, visibly a single grouped control. */
.segmented {
  display: inline-flex; padding: 3px; gap: 3px; align-self: flex-start;
  background: color-mix(in srgb, var(--ink) 7%, transparent); border-radius: 10px;
}
.form .segmented label {
  flex-direction: row; align-items: center; color: var(--ink); font-weight: 500;
  padding: 0.4rem 0.9rem; border-radius: 8px; cursor: pointer;
  transition: background-color var(--quick), box-shadow var(--quick);
}
.segmented input { position: absolute; opacity: 0; pointer-events: none; width: auto; }
.segmented label:has(input:checked) { background: var(--card); box-shadow: var(--shadow-s), 0 0 0 1px var(--hairline); font-weight: 600; }
.segmented label:has(input:focus-visible) { outline: 3px solid color-mix(in srgb, var(--accent) 55%, transparent); }

.thumbs { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.thumb { position: relative; }
.thumb img { width: 90px; height: 90px; object-fit: cover; border-radius: var(--radius-s); display: block; transition: opacity var(--quick); }
.thumb.uploading img { opacity: 0.45; }
.thumb.uploading::after {
  content: "Subiendo…"; position: absolute; inset: auto 0 0.35rem; text-align: center;
  font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.02em;
}
.thumb .remove {
  position: absolute; top: -6px; right: -6px; width: 24px; height: 24px; padding: 0;
  border-radius: 50%; line-height: 1; font-size: 0.875rem; box-shadow: var(--shadow-s);
}

/* ---------- Dialogs: grow from what you tapped, return to it ---------- */

dialog {
  border: none; border-radius: var(--radius-l); padding: 1.25rem;
  width: min(640px, 95vw); max-height: 88dvh;
  background: var(--card); color: var(--ink); box-shadow: var(--shadow-l);
  opacity: 1; transform: scale(1);
  transition:
    opacity var(--sheet) var(--ease-out),
    transform var(--sheet) var(--ease-out),
    overlay var(--sheet) allow-discrete,
    display var(--sheet) allow-discrete;
}
dialog:not([open]) { opacity: 0; transform: scale(0.94); }
@starting-style { dialog[open] { opacity: 0; transform: scale(0.94); } }

/* Dim to focus: a modal task dims and softens what's behind it. */
dialog::backdrop {
  background: rgb(0 0 0 / 0);
  -webkit-backdrop-filter: blur(0); backdrop-filter: blur(0);
  transition: background-color var(--sheet), backdrop-filter var(--sheet),
              overlay var(--sheet) allow-discrete, display var(--sheet) allow-discrete;
}
dialog[open]::backdrop { background: var(--scrim); -webkit-backdrop-filter: blur(3px); backdrop-filter: blur(3px); }
@starting-style { dialog[open]::backdrop { background: rgb(0 0 0 / 0); backdrop-filter: blur(0); } }

#confirm-dialog { width: min(420px, 92vw); }
#confirm-dialog p { margin: 0 0 1rem; color: var(--muted); }
#confirm-ok.danger { background: var(--lost); border-color: var(--lost); color: #fff; }

.actions { display: flex; gap: 0.5rem; justify-content: flex-end; align-items: center; flex-wrap: wrap; margin-top: 0.75rem; }
.actions .link { margin-right: auto; }
.register-only { display: none !important; }
.registering .register-only { display: flex !important; }

.gallery { display: flex; gap: 0.5rem; overflow-x: auto; margin: 0.5rem 0; scroll-snap-type: x mandatory; }
.gallery img { height: 200px; border-radius: var(--radius-s); scroll-snap-align: start; }
dl { display: grid; grid-template-columns: max-content 1fr; gap: 0.35rem 1rem; margin: 0.75rem 0; font-size: 0.9375rem; }
dt { color: var(--muted); }
dd { margin: 0; }
.box { background: color-mix(in srgb, var(--bg) 70%, var(--card)); border-radius: var(--radius-m); padding: 0.85rem; margin-top: 0.75rem; display: grid; gap: 0.5rem; }
.box p { margin: 0; }
.match { display: flex; gap: 0.5rem; align-items: center; justify-content: space-between; flex-wrap: wrap; padding: 0.4rem 0; border-bottom: 1px solid var(--hairline); }

/* ---------- Toast: rises from the bottom, leaves the same way ---------- */

#toast {
  position: fixed; left: 50%; bottom: 1rem; z-index: 3000;
  max-width: min(560px, 92vw);
  padding: 0.7rem 1.1rem; border-radius: var(--radius-m);
  background: color-mix(in srgb, var(--ink) 92%, transparent); color: var(--bg);
  font-weight: 500; box-shadow: var(--shadow-l);
  opacity: 0; transform: translate(-50%, 0.75rem);
  transition: opacity var(--quick) var(--ease-out), transform var(--sheet) var(--ease-out);
  pointer-events: none;
}
#toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- Responsive & input modality ---------- */

@media (max-width: 800px) {
  .explore { grid-template-columns: 1fr; height: auto; }
  #map { height: 50dvh; }
  /* Wayfinding: every section stays visible; nav gets its own row instead of scrolling off-screen. */
  header { flex-wrap: wrap; gap: 0.25rem 0.5rem; padding: 0.5rem 0.75rem 0.35rem; }
  .brand { flex: 1; }
  nav { order: 3; flex-basis: 100%; justify-content: space-between; gap: 0; }
  nav button { flex: 1; padding: 0.4rem 0.25rem; font-size: 0.8125rem; text-align: center; }
  #session span { display: none; }
  /* Filters in pairs, so the map isn't pushed below the fold: search + Buscar, then 2 × 2. */
  #explore-controls #place { flex: 1 1 60%; min-width: 0; }
  #explore-controls #locate, #explore-controls select { flex: 1 1 calc(50% - 0.25rem); min-width: 0; }
  #explore-controls select { font-size: 0.875rem; padding-left: 0.5rem; padding-right: 0.25rem; text-overflow: ellipsis; }
}

/* Touch: 44 px targets. */
@media (pointer: coarse) {
  button, input, select { min-height: 44px; }
  button.link { min-height: 0; padding: 0.5rem 0; }
  .thumb .remove { min-height: 0; width: 32px; height: 32px; }
}

/* ---------- Accessibility preferences ---------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 1ms !important; }
  button:active:not(:disabled), .pet:active { transform: none; }
  dialog, dialog:not([open]) { transform: none; }
  @starting-style { dialog[open] { transform: none; } }
  #toast, #toast.show { transform: translate(-50%, 0); }
  #toast { transition: opacity var(--quick) !important; }
}

@media (prefers-reduced-transparency: reduce) {
  header { background: var(--card); backdrop-filter: none; -webkit-backdrop-filter: none; box-shadow: 0 1px 0 var(--line); }
  dialog[open]::backdrop { backdrop-filter: none; -webkit-backdrop-filter: none; }
  #toast { background: var(--ink); }
}

@media (prefers-contrast: more) {
  :root { --hairline: currentColor; --muted: var(--ink); --line: currentColor; }
  header { background: var(--card); backdrop-filter: none; -webkit-backdrop-filter: none; box-shadow: 0 1px 0 var(--ink); }
  .card, dialog { box-shadow: 0 0 0 1px var(--ink); }
}