:root {
  --bg: #f6f5f2;
  --card: #ffffff;
  --text: #22201c;
  --muted: #6b675f;
  --border: #e3e0d8;
  --accent: #2563a8;
  --accent-soft: #e7eff9;
  --accent-text: #ffffff;
  --accent-strong: #1b4c85;
  --danger: #b3261e;
  --warn-bg: #fff4e0;
  --warn-text: #7a4b00;
  --alert-bg: #fdecea;
  --alert-text: #9b1c14;
  --ok-bg: #e5f2ec;
  --ok-text: #1f5a46;
  --whatsapp: #1f8f4e;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(34, 32, 28, 0.06), 0 1px 1px rgba(34, 32, 28, 0.04);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171614;
    --card: #211f1c;
    --text: #ece9e2;
    --muted: #a39e94;
    --border: #36332e;
    --accent: #7fb2ec;
    --accent-soft: #1a2a3e;
    --accent-text: #0d1a2b;
    --accent-strong: #a9cbf3;
    --danger: #f2867d;
    --warn-bg: #3a2c12;
    --warn-text: #f5c97a;
    --alert-bg: #3d1a17;
    --alert-text: #f5a39b;
    --ok-bg: #1d3329;
    --ok-text: #9ad8bf;
    --whatsapp: #2fa866;
    --shadow: none;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-text-size-adjust: 100%;
}
a { color: var(--accent); }
main { max-width: 1000px; margin: 0 auto; padding: 16px 16px 48px; }
h1 { font-size: 1.6rem; line-height: 1.2; margin: 0; }
h2 { font-size: 1.05rem; margin: 0 0 12px; display: flex; align-items: center; gap: 8px; }
.muted { color: var(--muted); font-weight: normal; }
.small { font-size: 0.875rem; }
.center { text-align: center; }
.spaced { margin-top: 20px; }
.eyebrow { margin: 0 0 2px; font-size: 0.8rem; font-weight: 600; letter-spacing: 0.02em; color: var(--muted); text-transform: uppercase; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* Barra superior */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; justify-content: space-between;
  padding: 10px 16px; background: var(--card); border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; font-size: 1.05rem; text-decoration: none; color: var(--text); }
.topbar nav { display: flex; gap: 4px; align-items: center; }
.topbar nav a {
  padding: 6px 12px; border-radius: 999px; text-decoration: none; color: var(--muted); font-weight: 500;
}
.topbar nav a:hover { color: var(--text); }
.topbar nav a[aria-current="page"] { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.muted-link { color: var(--muted) !important; text-decoration: none !important; padding: 6px 8px !important; }

/* Encabezado de página */
.page-head { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; justify-content: space-between; margin: 8px 0 16px; }
.back { display: inline-block; margin: 4px 0 8px; text-decoration: none; font-weight: 500; }

/* Tarjetas */
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; margin: 0 0 16px; box-shadow: var(--shadow);
}
.columns { display: grid; grid-template-columns: 1fr; gap: 0 16px; }
@media (min-width: 760px) { .columns { grid-template-columns: minmax(0, 2fr) minmax(260px, 1fr); } }

/* Resumen del día */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 16px; }
.stat {
  display: flex; flex-direction: column; gap: 2px; padding: 12px 14px; text-decoration: none; color: var(--text);
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow);
}
.stat:hover { border-color: var(--accent); }
.stat-num { font-size: 1.7rem; font-weight: 700; line-height: 1.1; }
.stat-label { font-size: 0.85rem; color: var(--muted); }
.stat-alert { background: var(--alert-bg); border-color: transparent; }
.stat-alert .stat-num, .stat-alert .stat-label { color: var(--alert-text); }
.stat-accent { background: var(--accent-soft); border-color: transparent; }
.stat-accent .stat-num, .stat-accent .stat-label { color: var(--accent-strong); }

/* Formularios */
label { display: block; margin-bottom: 12px; font-size: 0.9rem; font-weight: 500; }
input, select, textarea {
  display: block; width: 100%; margin-top: 4px; padding: 10px 12px; font: inherit; font-weight: normal;
  color: var(--text); background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
  min-height: 44px;
}
textarea { min-height: 80px; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 3px var(--accent-soft); }
fieldset { border: 1px solid var(--border); border-radius: var(--radius); margin: 0 0 16px; padding: 12px 14px; }
legend { font-weight: 600; padding: 0 4px; }
.grid { display: grid; grid-template-columns: 1fr; gap: 0 16px; margin-top: 12px; }
@media (min-width: 760px) { .grid { grid-template-columns: 1fr 1fr; } .grid .actions { grid-column: 1 / -1; } }
.actions { display: flex; gap: 16px; align-items: center; }
.field-row { display: grid; grid-template-columns: 1fr; gap: 0 12px; }
@media (min-width: 520px) { .field-row { grid-template-columns: 1fr 1fr; } }
.search { display: flex; gap: 8px; margin: 0 0 12px; }
.search input { margin: 0; }

.species-picker { display: flex; gap: 8px; margin-bottom: 12px; }
.species-option { flex: 1; margin: 0; }
.species-option input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.species-option span {
  display: block; padding: 10px; text-align: center; border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg); cursor: pointer; font-weight: 500;
}
.species-option input:checked + span { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.species-option input:focus-visible + span { outline: 3px solid var(--accent); outline-offset: 2px; }

/* Botones */
button, .button {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 44px; padding: 8px 16px; font: inherit; font-weight: 600; cursor: pointer;
  color: var(--accent-text); background: var(--accent); border: 1px solid var(--accent);
  border-radius: 8px; text-decoration: none; white-space: nowrap;
}
button:hover, .button:hover { filter: brightness(1.05); }
button.secondary, .button.secondary { background: transparent; color: var(--accent); }
button.small, .button.small { min-height: 36px; padding: 4px 12px; font-size: 0.875rem; }
button.block { width: 100%; }
button.link { background: none; border: none; color: var(--accent); padding: 0; min-height: 0; font-weight: 500; text-decoration: underline; }
button.danger { color: var(--danger); }
.button.big { display: flex; width: 100%; padding: 14px; font-size: 1.05rem; margin-top: 8px; }
.button.whatsapp, button.whatsapp { background: var(--whatsapp); border-color: var(--whatsapp); color: #fff; }
.icon-button {
  min-height: 32px; width: 32px; padding: 0; background: transparent; border: 1px solid transparent;
  color: var(--muted); font-weight: normal; border-radius: 999px;
}
.icon-button:hover { border-color: var(--border); color: var(--danger); }
form.inline { display: inline; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: -4px 0 14px; }
.chip {
  min-height: 34px; padding: 4px 12px; font-size: 0.85rem; font-weight: 500;
  background: var(--bg); color: var(--text); border: 1px solid var(--border); border-radius: 999px;
}
.chip.active { background: var(--accent-soft); color: var(--accent); border-color: var(--accent); }

/* Avatar */
.avatar {
  flex: 0 0 auto; display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; font-size: 1.5rem; background: var(--accent-soft); border-radius: 50%;
}
.avatar-lg { width: 64px; height: 64px; font-size: 2.2rem; }
.avatar-xl { width: 96px; height: 96px; font-size: 3.2rem; }

/* Lista de mascotas */
.pet-list { list-style: none; margin: 0; padding: 0; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.pet-list li + li { border-top: 1px solid var(--border); }
.pet-row { display: flex; align-items: center; gap: 12px; padding: 12px 14px; text-decoration: none; color: var(--text); }
.pet-row:hover { background: var(--bg); }
.pet-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.pet-name { font-weight: 600; }

/* Fechas con urgencia */
.due { flex: 0 0 auto; display: flex; flex-direction: column; align-items: flex-end; text-align: right; line-height: 1.25; padding: 4px 10px; border-radius: 8px; }
.due strong { font-size: 0.9rem; }
.due.overdue { background: var(--alert-bg); color: var(--alert-text); }
.due.soon { background: var(--warn-bg); color: var(--warn-text); }
.due.ok { color: var(--muted); }
.due.none { color: var(--muted); }
.due-inline.overdue { color: var(--alert-text); font-weight: 600; }
.due-inline.soon { color: var(--warn-text); font-weight: 600; }

/* Ficha de la mascota */
.pet-header { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }
.pet-header-main { flex: 1; min-width: 160px; }
.pet-header-main p { margin: 2px 0 0; }
.pet-alert { flex-basis: 100%; margin: 0; }
.owner-line { flex-basis: 100%; display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: flex-end; justify-content: space-between; padding-top: 12px; border-top: 1px solid var(--border); }
.owner-line p { margin: 0; }
.owner-name { font-weight: 600; margin: 0; }
.card p.small { margin: 0 0 4px; }
.contact-buttons { display: flex; flex-wrap: wrap; gap: 8px; }

.timeline { list-style: none; margin: 0; padding: 0; }
.event { padding: 12px 0 12px 14px; border-left: 3px solid var(--border); }
.event + .event { margin-top: 4px; }
.event.overdue { border-left-color: var(--danger); }
.event.soon { border-left-color: #d99a1e; }
.event.ok { border-left-color: var(--accent); }
.event-head { display: flex; justify-content: space-between; gap: 8px; align-items: flex-start; }
.event.overdue .due-text { color: var(--alert-text); font-weight: 600; }
.event.soon .due-text { color: var(--warn-text); font-weight: 600; }
.done-form { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 8px; margin-top: 8px; }
.done-form label { margin: 0; flex: 1 1 160px; max-width: 220px; font-weight: normal; color: var(--muted); }
.done-form select { min-height: 36px; padding: 4px 8px; margin-top: 2px; }

.history { list-style: none; margin: 0; padding: 0; }
.history li { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--border); }
.history li:last-child { border-bottom: none; }

/* Recordatorios */
.count { display: inline-block; min-width: 24px; padding: 0 8px; font-size: 0.8rem; line-height: 22px; text-align: center; border-radius: 999px; background: var(--bg); border: 1px solid var(--border); color: var(--muted); }
.count-alert { background: var(--alert-bg); color: var(--alert-text); border-color: transparent; }
.reminder-list { list-style: none; margin: 0; padding: 0; }
.reminder { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: center; justify-content: space-between; padding: 12px 0; border-bottom: 1px solid var(--border); }
.reminder:last-child { border-bottom: none; }
.reminder-main { display: flex; gap: 12px; align-items: center; }
.reminder-main .due { align-items: flex-start; text-align: left; min-width: 92px; }
.reminder-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

/* Etiquetas y avisos */
.tag { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 0.78rem; font-weight: 500; background: var(--bg); border: 1px solid var(--border); vertical-align: middle; }
.tag.done, .tag.sent { background: var(--ok-bg); color: var(--ok-text); border-color: transparent; }
.tag.overdue, .tag.error { background: var(--warn-bg); color: var(--warn-text); border-color: transparent; }
.flash { padding: 10px 14px; border-radius: 10px; margin: 0 0 16px; background: var(--ok-bg); color: var(--ok-text); }
.flash.error { background: var(--alert-bg); color: var(--alert-text); }
.flash.info { background: var(--card); color: var(--muted); border: 1px solid var(--border); }
.alert { padding: 10px 14px; border-radius: 10px; background: var(--warn-bg); color: var(--warn-text); }
.empty { color: var(--muted); padding: 8px 0; margin: 0; }
.empty-state { text-align: center; padding: 32px 16px; background: var(--card); border: 1px dashed var(--border); border-radius: var(--radius); }
.empty-state h2 { justify-content: center; }
.empty-icon { font-size: 2.5rem; margin: 0; }

.qr img { display: block; background: #fff; border-radius: 8px; padding: 6px; margin-bottom: 8px; }
.message pre { white-space: pre-wrap; font: inherit; font-size: 0.9rem; background: var(--bg); padding: 12px; border-radius: 8px; }
.message summary { cursor: pointer; padding: 6px 0; font-size: 0.9rem; }

/* Ingreso */
.auth { max-width: 400px; margin: 24px auto; }
.auth-brand { text-align: center; margin-bottom: 16px; }
.auth-logo { display: inline-flex; align-items: center; justify-content: center; width: 72px; height: 72px; font-size: 2.4rem; background: var(--accent-soft); border-radius: 20px; }
.auth-brand h1 { margin-top: 10px; }
.auth-brand p { margin: 6px 0 0; }

/* Ficha pública */
.public { max-width: 480px; margin: 0 auto; }
.public-hero { text-align: center; padding: 20px 0 12px; }
.public-hero h1 { font-size: 2.1rem; margin-top: 10px; }
.public-hero p { margin: 4px 0 0; }
.public .alert { margin: 0 0 16px; }
.found p { margin: 0 0 4px; }
.clinic p { margin: 0 0 10px; }
.footer-note { text-align: center; color: var(--muted); font-size: 0.85rem; }

/* Celular */
@media (max-width: 600px) {
  h1 { font-size: 1.4rem; }
  .page-head { align-items: stretch; }
  .page-head > .button, .page-head > form, .page-head > form button { width: 100%; }
  .stat { padding: 10px; }
  .stat-num { font-size: 1.45rem; }
  .stat-label { font-size: 0.78rem; }
  .topbar nav a { padding: 6px 10px; }
  .history li { flex-direction: column; gap: 0; }
}