/* =========================================================
   Ejemplo: Veterinaria Huellitas
   Azul noche para lo serio, naranja para lo que se toca y
   crema de fondo. Esquinas redondas y letra redonda: se
   trata de bajarle el susto a quien llega con su mascota.
   ========================================================= */
:root{
  --noche:    #1D2B4F;
  --noche-2:  #26365F;
  --crema:    #FFF8F0;
  --crema-2:  #F6EADC;
  --gris:     #5B5A63;   /* 6.6:1 sobre crema */
  --naranja:  #EE7B30;
  --naranja-os:#9C4A08;  /* 5.2:1 sobre crema, para letra */
  --tinta:    #17203A;
  --verde:    #128C4A;
  --linea:    rgba(23,32,58,.14);
  --f-titulo: "Nunito", "Segoe UI", system-ui, sans-serif;
  --f-texto:  "Inter", "Segoe UI", system-ui, sans-serif;
  --r-sm: 10px; --r: 18px; --r-lg: 26px;
  --max: 1150px;
  --pad: clamp(1.1rem, 4vw, 2.2rem);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; scroll-padding-top:80px; }
@media (prefers-reduced-motion:reduce){ html{ scroll-behavior:auto; } }
body{ margin:0; background:var(--crema); color:var(--gris);
  font-family:var(--f-texto); font-size:1.02rem; line-height:1.65; overflow-x:hidden; }
img{ display:block; max-width:100%; height:auto; }
h1,h2,h3{ margin:0; font-family:var(--f-titulo); font-weight:800; color:var(--tinta);
  line-height:1.12; letter-spacing:-.01em; text-wrap:balance; }
h1{ font-size:clamp(2.2rem, 4.8vw, 3.4rem); }
h2{ font-size:clamp(1.7rem, 3.4vw, 2.4rem); }
h3{ font-size:1.16rem; font-weight:700; }
p{ margin:0 0 1rem; text-wrap:pretty; }
ul,ol{ margin:0; padding:0; list-style:none; }
a{ color:inherit; }
button,select,input,legend{ font:inherit; color:inherit; }
:focus-visible{ outline:3px solid var(--naranja); outline-offset:3px; border-radius:6px; }
.wrap{ width:100%; max-width:var(--max); margin-inline:auto; padding-inline:var(--pad); }
.wrap--angosto{ max-width:760px; }
.ico{ width:20px; height:20px; flex:none; fill:none; stroke:currentColor;
  stroke-width:1.7; stroke-linecap:round; stroke-linejoin:round; }
.mini{ font-size:.86rem; }

.sobre{ margin:0 0 .7rem; font-weight:700; font-size:.75rem; letter-spacing:.16em;
  text-transform:uppercase; color:var(--naranja-os); }
.sobre--claro{ color:#FFC79A; }
.seccion{ padding:clamp(3rem, 7vw, 5rem) 0; }
.seccion--crema{ background:var(--crema-2); }
.sec-head{ max-width:620px; margin:0 auto clamp(1.8rem,4vw,2.6rem); text-align:center; }

/* ---------- Botones ---------- */
.btn{
  --bg:var(--naranja); --fg:#fff; --bd:transparent; --bg-h:#D96A21;
  display:inline-flex; align-items:center; justify-content:center; gap:.5rem;
  min-height:50px; padding:.8rem 1.5rem;
  background:var(--bg); color:var(--fg); border:2px solid var(--bd); border-radius:999px;
  font-family:var(--f-titulo); font-weight:700; font-size:.98rem; text-decoration:none; cursor:pointer;
  transition:background .2s ease, color .2s ease, border-color .2s ease;
}
.btn:hover{ background:var(--bg-h); }
.btn--grande{ min-height:56px; padding:1rem 1.8rem; font-size:1.05rem; }
.btn--bloque{ width:100%; }
.btn--linea{ --bg:transparent; --fg:var(--tinta); --bd:rgba(23,32,58,.28); --bg-h:rgba(23,32,58,.06); }
.btn--linea:hover{ border-color:var(--tinta); }
.btn--wa{ --bg:var(--verde); --fg:#fff; --bg-h:#0E7A3F; }
.btn .ico[href$="i-wa"]{ fill:currentColor; stroke:none; }

/* ---------- Cabecera ---------- */
.cabecera{ position:sticky; top:0; z-index:100; background:var(--crema);
  border-bottom:1px solid var(--linea); }
.cabecera__inner{ display:flex; align-items:center; gap:1.2rem; min-height:74px; }
.marca{ display:flex; align-items:center; gap:.7rem; text-decoration:none; color:var(--tinta); }
.marca__ico{ display:grid; place-items:center; width:42px; height:42px; background:var(--naranja);
  border-radius:50%; color:#fff; }
.marca__ico .ico{ fill:currentColor; stroke:none; }
.marca__txt{ display:flex; flex-direction:column; font-family:var(--f-titulo); font-weight:800;
  font-size:1.3rem; line-height:1.05; }
.marca__txt small{ font-family:var(--f-texto); font-weight:500; font-size:.66rem;
  letter-spacing:.16em; text-transform:uppercase; color:var(--gris); }
.nav{ display:flex; align-items:center; gap:1.5rem; margin-left:auto; }
.nav a{ text-decoration:none; color:var(--gris); font-weight:600; font-size:.93rem; }
.nav a:not(.btn):hover{ color:var(--tinta); }
.nav a.nav__cta{ color:var(--fg); min-height:42px; padding:.5rem 1.15rem; font-size:.9rem; }
.nav-toggle{ display:none; margin-left:auto; width:44px; height:44px; padding:11px;
  background:transparent; border:1px solid var(--linea); border-radius:12px; cursor:pointer; }
.nav-toggle span{ display:block; height:2px; background:var(--tinta);
  transition:transform .25s ease, opacity .2s ease; }
.nav-toggle span + span{ margin-top:5px; }
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }
@media (max-width:900px){
  .nav-toggle{ display:block; }
  .nav{ position:absolute; left:0; right:0; top:100%; flex-direction:column; align-items:stretch; gap:0;
    background:var(--crema); border-bottom:1px solid var(--linea); padding:.4rem var(--pad) 1.1rem;
    max-height:0; overflow:hidden; visibility:hidden; transition:max-height .3s ease, visibility 0s linear .3s; }
  .nav.is-abierto{ max-height:80vh; visibility:visible; transition:max-height .35s ease, visibility 0s; }
  .nav a{ padding:.95rem 0; border-bottom:1px solid var(--linea); }
  .nav a.nav__cta{ margin-top:.9rem; border-bottom:0; }
}

/* ---------- Hero ---------- */
.hero{ padding:clamp(2.5rem,6vw,4.5rem) 0 clamp(3rem,7vw,5rem); }
.hero__inner{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(1.8rem,4vw,3.4rem);
  align-items:center; }
.hero .lede{ margin:1.2rem 0 1.9rem; font-size:1.08rem; max-width:48ch; }
.hero__acciones{ display:flex; flex-wrap:wrap; gap:.7rem; }
.hero__datos{ display:flex; flex-wrap:wrap; gap:.6rem 1.6rem; margin-top:1.8rem; font-size:.93rem; }
.hero__datos li{ display:inline-flex; align-items:center; gap:.5rem; }
.hero__datos .ico{ color:var(--naranja-os); }
.hero__foto{ display:block; border-radius:var(--r-lg); overflow:hidden;
  box-shadow:0 30px 60px -34px rgba(23,32,58,.7); }
.hero__foto img{ width:100%; aspect-ratio:4/3; object-fit:cover; }
@media (max-width:900px){ .hero__inner{ grid-template-columns:1fr; } }
@media (max-width:560px){ .hero__acciones .btn{ width:100%; } }

/* ---------- Servicios ---------- */
.servicios{ display:grid; gap:1rem; grid-template-columns:repeat(auto-fit, minmax(260px,1fr)); }
.servicio{ background:#fff; border:1px solid var(--linea); border-radius:var(--r); padding:1.5rem 1.4rem; }
.servicio__ico{ display:grid; place-items:center; width:48px; height:48px; margin-bottom:1rem;
  background:var(--crema-2); border-radius:50%; color:var(--naranja-os); }
.servicio h3{ margin-bottom:.35rem; }
.servicio p{ margin:0; font-size:.95rem; }

/* ---------- Calendario de vacunas ---------- */
.vacunas{ background:var(--noche); color:rgba(255,255,255,.84); padding:clamp(3rem,7vw,5rem) 0; }
.vacunas__inner{ display:grid; grid-template-columns:1fr 1.05fr; gap:clamp(1.8rem,4vw,3.4rem);
  align-items:start; }
.vacunas h2{ color:#fff; }
.lista-check{ display:grid; gap:.55rem; margin-top:1.2rem; }
.lista-check li{ position:relative; padding-left:1.8rem; }
.lista-check li::before{ content:""; position:absolute; left:.15rem; top:.55em; width:.8rem; height:.42rem;
  border-left:2.5px solid var(--naranja); border-bottom:2.5px solid var(--naranja); transform:rotate(-45deg); }
.vacunas__foto{ display:block; margin-top:1.8rem; border-radius:var(--r); overflow:hidden; }
.vacunas__foto img{ width:100%; aspect-ratio:16/10; object-fit:cover; }
@media (max-width:900px){ .vacunas__foto{ display:none; } }
.vacunas__caja{ background:var(--noche-2); border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-lg); padding:clamp(1.3rem,3vw,1.9rem); }
.campo{ margin:0 0 1.1rem; padding:0; border:0; }
.campo legend, .campo > label{ display:block; margin-bottom:.5rem; padding:0;
  font-family:var(--f-titulo); font-weight:700; font-size:.92rem; color:#fff; }
.campo--doble{ display:grid; grid-template-columns:1fr 1fr; gap:.9rem; }
.campo--doble label{ display:flex; flex-direction:column; gap:.4rem;
  font-family:var(--f-titulo); font-weight:700; font-size:.92rem; color:#fff; }
.campo--doble small{ font-family:var(--f-texto); font-weight:400; color:rgba(255,255,255,.6); }
.campo input[type="text"], .campo input[type="date"]{
  min-height:48px; padding:.65rem .9rem; background:var(--noche);
  border:1px solid rgba(255,255,255,.25); border-radius:12px; color:#fff;
  font-family:var(--f-texto); font-weight:400; }
.campo input::placeholder{ color:rgba(255,255,255,.45); }
.campo input:focus-visible{ outline:3px solid var(--naranja); outline-offset:1px; }
.opciones{ display:flex; gap:.5rem; }
.opciones label{ position:relative; flex:1; }
.opciones input{ position:absolute; opacity:0; width:100%; height:100%; margin:0; cursor:pointer; }
.opciones span{ display:flex; align-items:center; justify-content:center; gap:.45rem;
  min-height:48px; padding:.6rem 1rem; background:var(--noche);
  border:1.5px solid rgba(255,255,255,.25); border-radius:999px;
  font-family:var(--f-titulo); font-weight:700; color:#fff; cursor:pointer;
  transition:background .2s, border-color .2s; }
.opciones span .ico{ width:18px; height:18px; fill:currentColor; stroke:none; }
.opciones input:checked + span{ background:var(--naranja); border-color:var(--naranja); }
.opciones input:focus-visible + span{ outline:3px solid var(--naranja); outline-offset:2px; }

.vacunas__edad{ margin:1.4rem 0 .8rem; font-family:var(--f-titulo); font-weight:700;
  font-size:1.05rem; color:#FFC79A; }
.plan{ display:grid; gap:.4rem; margin-bottom:1.4rem; }
.plan__fila{ display:flex; align-items:baseline; justify-content:space-between; gap:1rem;
  padding:.7rem .9rem; background:rgba(255,255,255,.06); border-radius:12px;
  border-left:3px solid transparent; font-size:.93rem; }
.plan__que{ font-weight:500; color:#fff; }
.plan__fecha{ flex:none; text-align:right; font-weight:600; color:#fff; }
.plan__fecha small{ display:block; font-weight:400; font-size:.78rem; color:rgba(255,255,255,.62); }
.plan__fila.es-pasada{ opacity:.55; }
.plan__fila.es-pasada .plan__que{ text-decoration:line-through; }
.plan__fila.es-siguiente{ background:rgba(238,123,48,.18); border-left-color:var(--naranja); }
.plan__fila.es-siguiente .plan__fecha small{ color:#FFC79A; }
.vacunas__nota{ margin:.9rem 0 0; font-size:.83rem; color:rgba(255,255,255,.62); }
@media (max-width:900px){ .vacunas__inner{ grid-template-columns:1fr; } }
@media (max-width:480px){ .campo--doble{ grid-template-columns:1fr; } }

/* ---------- La clínica ---------- */
.clinica{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(1.8rem,4vw,3.2rem); align-items:center; }
.clinica__fotos{ display:grid; grid-template-columns:1fr 1fr; gap:.9rem; }
.clinica__fotos figure{ margin:0; border-radius:var(--r); overflow:hidden; }
.clinica__fotos figure:first-child{ grid-row:span 2; }
.clinica__fotos img{ width:100%; height:100%; object-fit:cover; }
@media (max-width:900px){ .clinica{ grid-template-columns:1fr; } }

/* ---------- Preguntas ---------- */
.faq{ display:grid; gap:.5rem; }
.faq__item{ background:#fff; border:1px solid var(--linea); border-radius:var(--r-sm); overflow:hidden; }
.faq__item summary{ position:relative; cursor:pointer; list-style:none; min-height:44px;
  padding:1rem 3rem 1rem 1.2rem; font-family:var(--f-titulo); font-weight:700; color:var(--tinta); }
.faq__item summary::-webkit-details-marker{ display:none; }
.faq__item summary::after{ content:""; position:absolute; right:1.3rem; top:50%; width:10px; height:10px;
  margin-top:-7px; border-right:2px solid var(--naranja-os); border-bottom:2px solid var(--naranja-os);
  transform:rotate(45deg); transition:transform .25s ease; }
.faq__item[open] summary::after{ transform:rotate(-135deg); margin-top:-2px; }
.faq__a{ padding:0 1.2rem 1.1rem; }
.faq__a p{ margin:0; }

/* ---------- Pie ---------- */
.pie{ background:var(--noche); color:rgba(255,255,255,.78); padding:2.2rem 0 2.6rem; }
.pie__inner{ display:flex; flex-wrap:wrap; gap:1rem 2rem; justify-content:space-between; }
.pie__marca{ margin:0 0 .2rem; font-family:var(--f-titulo); font-weight:800; font-size:1.3rem; color:#fff; }
.pie__datos{ display:grid; gap:.4rem; font-size:.92rem; }
.pie__datos li{ display:flex; align-items:center; gap:.5rem; }
.pie__datos .ico{ color:#FFC79A; }