/* =========================================================
   Ejemplo: Clínica Dental Aurora
   Paleta clínica sin frialdad de hospital: verde azulado,
   menta muy diluida y blanco. Esquinas suaves y sombras
   bajas, para que una página de dentista no intimide.
   ========================================================= */
:root{
  --azul:        #0E7C86;   /* 4.95:1 sobre blanco */
  --azul-osc:    #0A545C;
  --azul-claro:  #E3F2F3;
  --menta:       #F2FAFA;
  --tinta:       #0F2226;
  --tinta-2:     #4A6167;   /* 6.7:1 sobre menta */
  --coral:       #E4604A;
  --blanco:      #FFFFFF;
  --linea:       rgba(15,34,38,.12);
  --f-titulo: "Plus Jakarta Sans", "Segoe UI", system-ui, sans-serif;
  --f-texto:  "Inter", "Segoe UI", system-ui, sans-serif;
  --r-sm: 10px; --r-md: 16px; --r-lg: 22px;
  --sombra: 0 20px 40px -24px rgba(10,60,66,.45);
  --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(--menta); color:var(--tinta-2);
  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); color:var(--tinta); line-height:1.2;
  letter-spacing:-.02em; text-wrap:balance; }
h1{ font-size:clamp(2.1rem, 4.6vw, 3.2rem); font-weight:800; }
h2{ font-size:clamp(1.6rem, 3.2vw, 2.3rem); font-weight:700; }
h3{ font-size:1.1rem; font-weight:700; }
p{ margin:0 0 1rem; text-wrap:pretty; }
ul,ol{ margin:0; padding:0; list-style:none; }
a{ color:inherit; }
button,input,select{ font:inherit; color:inherit; }
:focus-visible{ outline:3px solid var(--coral); outline-offset:2px; border-radius:6px; }
.wrap{ width:100%; max-width:var(--max); margin-inline:auto; padding-inline:var(--pad); }
.wrap--angosto{ max-width:780px; }
.ico{ width:20px; height:20px; flex:none; fill:none; stroke:currentColor;
  stroke-width:1.7; stroke-linecap:round; stroke-linejoin:round; }
.mini{ font-size:.85rem; }

.sobre{ margin:0 0 .6rem; font-family:var(--f-titulo); font-weight:700;
  font-size:.78rem; letter-spacing:.12em; text-transform:uppercase; color:var(--azul); }
.sobre--claro{ color:#9FE0E4; }
.seccion{ padding:clamp(3rem, 7vw, 5rem) 0; }
.seccion--suave{ background:var(--azul-claro); }
.sec-head{ max-width:620px; margin:0 auto clamp(1.8rem, 4vw, 2.8rem); text-align:center; }
.sec-head__txt{ margin:.8rem 0 0; }

/* ---------- Botones ---------- */
.btn{
  --bg:var(--azul); --fg:#fff; --bd:transparent; --bg-h:var(--azul-osc);
  display:inline-flex; align-items:center; justify-content:center; gap:.55rem;
  min-height:48px; padding:.8rem 1.4rem;
  background:var(--bg); color:var(--fg); border:2px solid var(--bd); border-radius:999px;
  font-family:var(--f-titulo); font-weight:700; font-size:.95rem; text-decoration:none; cursor:pointer;
  transition:background .2s ease, color .2s ease, border-color .2s ease, transform .15s ease;
}
.btn:hover{ background:var(--bg-h); }
.btn:active{ transform:translateY(1px); }
.btn--grande{ min-height:54px; padding:.95rem 1.7rem; font-size:1rem; }
.btn--linea{ --bg:transparent; --fg:var(--azul); --bd:var(--azul); --bg-h:var(--azul-claro); }
.btn--claro{ --bg:#fff; --fg:var(--azul-osc); --bg-h:#E8F6F7; }
.btn--linea-claro{ --bg:transparent; --fg:#fff; --bd:rgba(255,255,255,.6); --bg-h:rgba(255,255,255,.14); }
.btn--wa{ --bg:#128C4A; --fg:#fff; --bg-h:#0E7A3F; }
.btn--wa .ico{ fill:currentColor; stroke:none; }

/* ---------- Cabecera ---------- */
.cabecera{ position:sticky; top:0; z-index:100; background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px); border-bottom:1px solid var(--linea); }
.cabecera__inner{ display:flex; align-items:center; gap:1.2rem; min-height:72px; }
.marca{ display:flex; align-items:center; gap:.6rem; text-decoration:none; }
.marca__ico{ display:grid; place-items:center; width:40px; height:40px; border-radius:12px;
  background:var(--azul); color:#fff; }
.marca__ico .ico{ width:22px; height:22px; fill:currentColor; stroke:none; }
.marca__txt{ display:flex; flex-direction:column; line-height:1.1; }
.marca__txt strong{ font-family:var(--f-titulo); font-size:1.15rem; color:var(--tinta); }
.marca__txt small{ font-size:.72rem; letter-spacing:.1em; text-transform:uppercase; color:var(--tinta-2); }
.nav{ display:flex; align-items:center; gap:1.4rem; margin-left:auto; }
.nav a{ text-decoration:none; font-weight:500; font-size:.95rem; color:var(--tinta-2); }
.nav a:not(.btn):hover{ color:var(--azul); }
.nav a.nav__cta{ color:#fff; min-height:44px; padding:.6rem 1.2rem; 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); border-radius:2px;
  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:880px){
  .nav-toggle{ display:block; }
  .nav{ position:absolute; left:0; right:0; top:100%; flex-direction:column; align-items:stretch; gap:0;
    background:#fff; 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:75vh; visibility:visible; transition:max-height .35s ease, visibility 0s; }
  .nav a{ padding:.9rem 0; border-bottom:1px solid var(--linea); }
  .nav a.nav__cta{ margin-top:.9rem; border-bottom:0; justify-content:center; }
}

/* ---------- Hero ---------- */
.hero{ padding:clamp(2.4rem, 5vw, 4rem) 0 clamp(2.4rem, 5vw, 3.6rem); }
.hero__inner{ display:grid; grid-template-columns:1.05fr 1fr; gap:clamp(1.8rem, 4vw, 3.2rem); align-items:center; }
.hero .lede{ font-size:1.12rem; max-width:48ch; margin:1.1rem 0 1.8rem; }
.hero__acciones{ display:flex; flex-wrap:wrap; gap:.7rem; }
.sellos{ display:flex; flex-wrap:wrap; gap:.6rem 1.4rem; margin-top:1.8rem; font-size:.92rem; }
.sellos li{ display:inline-flex; align-items:center; gap:.45rem; }
.sellos .ico{ width:18px; height:18px; color:var(--azul); }
.hero__foto{ margin:0; border-radius:var(--r-lg); overflow:hidden; box-shadow:var(--sombra); }
@media (max-width:880px){
  .hero__inner{ grid-template-columns:1fr; }
  .hero__acciones .btn{ width:100%; }
}

/* ---------- Servicios ---------- */
.servicios{ display:grid; gap:clamp(.9rem, 2vw, 1.4rem);
  grid-template-columns:repeat(auto-fit, minmax(250px, 1fr)); }
.servicio{ background:#fff; border:1px solid var(--linea); border-radius:var(--r-md);
  padding:1.5rem 1.4rem 1.4rem; transition:transform .25s ease, box-shadow .25s ease; }
.servicio:hover{ transform:translateY(-3px); box-shadow:var(--sombra); }
.servicio__ico{ display:grid; place-items:center; width:46px; height:46px; margin-bottom:1rem;
  border-radius:14px; background:var(--azul-claro); color:var(--azul-osc); }
.servicio__ico .ico{ width:24px; height:24px; fill:currentColor; stroke:none; }
.servicio p{ margin:.35rem 0 .8rem; font-size:.96rem; }
.servicio__precio{ margin:0; font-family:var(--f-titulo); font-weight:700; color:var(--azul-osc); }

/* ---------- Agenda (la mecánica) ---------- */
.agenda{ padding:clamp(3rem, 7vw, 5rem) 0; background:
  radial-gradient(circle at 15% 10%, rgba(255,255,255,.12), transparent 40%), var(--azul-osc); }
.agenda h2{ color:#fff; }
.agenda .sec-head__txt{ color:rgba(255,255,255,.82); }
.agenda__caja{ background:#fff; border-radius:var(--r-lg); padding:clamp(1.3rem, 3vw, 2rem);
  box-shadow:0 30px 60px -30px rgba(0,0,0,.5); max-width:860px; margin:0 auto; }
.paso{ border:0; padding:0; margin:0 0 1.6rem; }
.paso legend{ display:flex; align-items:center; gap:.6rem; padding:0; margin-bottom:.9rem;
  font-family:var(--f-titulo); font-weight:700; font-size:1.05rem; color:var(--tinta); }
.paso__n{ display:grid; place-items:center; width:28px; height:28px; border-radius:50%;
  background:var(--azul); color:#fff; font-size:.9rem; }
.opciones{ display:flex; flex-wrap:wrap; gap:.55rem; }
.opcion{ position:relative; }
.opcion input{ position:absolute; opacity:0; width:100%; height:100%; margin:0; cursor:pointer; }
.opcion span{ display:inline-flex; align-items:center; justify-content:center; min-height:44px;
  padding:.6rem 1rem; border:1.5px solid var(--linea); border-radius:999px;
  font-size:.94rem; cursor:pointer; transition:border-color .2s ease, background .2s ease, color .2s ease; }
.opcion input:hover + span{ border-color:var(--azul); }
.opcion input:checked + span{ background:var(--azul); border-color:var(--azul); color:#fff; font-weight:600; }
.opcion input:focus-visible + span{ outline:3px solid var(--coral); outline-offset:2px; }
.opcion input:disabled + span{ opacity:.45; cursor:not-allowed; text-decoration:line-through; }
.opciones--dias .opcion span{ flex-direction:column; gap:.1rem; min-width:84px; border-radius:14px; line-height:1.2; }
.opciones--dias small{ font-size:.72rem; text-transform:uppercase; letter-spacing:.06em; opacity:.75; }
.opciones--horas .opcion span{ min-width:84px; }
.nota{ margin:.7rem 0 0; font-size:.85rem; color:var(--tinta-2); }
.paso--datos{ display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
.campo{ display:flex; flex-direction:column; gap:.35rem; font-size:.9rem; font-weight:500; color:var(--tinta); }
.campo input, .campo select{ min-height:48px; padding:.7rem .9rem; border:1.5px solid var(--linea);
  border-radius:12px; background:#fff; font-weight:400; }
.campo input:focus, .campo select:focus{ border-color:var(--azul); outline:none; }
.agenda__pie{ display:flex; flex-wrap:wrap; align-items:center; gap:1rem; justify-content:space-between;
  margin-top:1.4rem; padding-top:1.4rem; border-top:1px solid var(--linea); }
.agenda__resumen{ margin:0; font-size:.98rem; color:var(--tinta); max-width:44ch; }
.agenda__resumen strong{ color:var(--azul-osc); }
.agenda__resumen.is-falta{ color:var(--coral); font-weight:600; }
@media (max-width:640px){
  .paso--datos{ grid-template-columns:1fr; }
  .agenda__pie .btn{ width:100%; }
}

/* ---------- Confianza ---------- */
.confianza{ display:grid; grid-template-columns:1fr 1.1fr; gap:clamp(1.8rem, 4vw, 3.4rem); align-items:center; }
.confianza__foto{ margin:0; border-radius:var(--r-lg); overflow:hidden; box-shadow:var(--sombra); }
.lista-check{ display:grid; gap:.8rem; margin:1.2rem 0 1.8rem; }
.lista-check li{ position:relative; padding-left:1.9rem; }
.lista-check strong{ color:var(--tinta); }
.lista-check li::before{ content:""; position:absolute; left:.25rem; top:.5em; width:.85rem; height:.45rem;
  border-left:2.5px solid var(--azul); border-bottom:2.5px solid var(--azul); transform:rotate(-45deg); }
@media (max-width:880px){ .confianza{ grid-template-columns:1fr; } }

/* ---------- Reseñas (hueco a propósito) ---------- */
.resenas{ display:grid; gap:1rem; grid-template-columns:repeat(auto-fit, minmax(220px, 1fr)); }
.resena-hueco{ display:grid; place-items:center; min-height:150px; border-radius:var(--r-md);
  border:2px dashed rgba(14,124,134,.45); color:var(--azul-osc); font-weight:600;
  background:rgba(255,255,255,.5); text-align:center; padding:1rem; }

/* ---------- Preguntas ---------- */
.faq{ display:grid; gap:.6rem; }
.faq__item{ background:#fff; border:1px solid var(--linea); border-radius:var(--r-md); overflow:hidden; }
.faq__item[open]{ box-shadow:var(--sombra); }
.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(--azul); border-bottom:2px solid var(--azul);
  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; }

/* ---------- Cierre ---------- */
.cierre{ background:var(--azul); color:#fff; padding:clamp(2.6rem, 6vw, 4rem) 0; }
.cierre h2{ color:#fff; }
.cierre p{ margin:.6rem 0 0; color:rgba(255,255,255,.88); }
.cierre__inner{ display:flex; flex-wrap:wrap; gap:1.5rem; align-items:center; justify-content:space-between; }
.cierre__acciones{ display:flex; flex-wrap:wrap; gap:.7rem; }

/* ---------- Pie ---------- */
.pie{ background:var(--tinta); color:rgba(255,255,255,.78); padding:2.4rem 0 3rem; }
.pie__inner{ display:flex; flex-wrap:wrap; gap:1.5rem; justify-content:space-between; }
.pie__marca{ display:flex; align-items:center; gap:.6rem; margin:0 0 .3rem;
  font-family:var(--f-titulo); font-weight:700; color:#fff; }
.pie__marca .marca__ico{ width:32px; height:32px; border-radius:10px; }
.pie__datos{ display:grid; gap:.5rem; font-size:.92rem; }
.pie__datos li{ display:flex; align-items:center; gap:.55rem; }
.pie__datos .ico{ color:#7FD0D6; }

/* ---------- Botón flotante (solo en celular) ---------- */
.flotante{ display:none; }
@media (max-width:640px){
  .flotante{ position:fixed; left:1rem; right:1rem; bottom:1rem; z-index:90;
    display:flex; align-items:center; justify-content:center; min-height:52px;
    background:var(--azul); color:#fff; border-radius:999px; text-decoration:none;
    font-family:var(--f-titulo); font-weight:700;
    box-shadow:0 14px 30px -12px rgba(10,60,66,.7);
    padding-bottom:calc(0px + env(safe-area-inset-bottom, 0px)); }
}

/* ---------- Aparición al hacer scroll ---------- */
.reveal{ transition:opacity .5s ease, transform .5s ease; transition-delay:calc(var(--i,0) * 60ms); }
.js .reveal{ opacity:0; transform:translateY(14px); }
.js .reveal.is-in{ opacity:1; transform:none; }
@media (prefers-reduced-motion:reduce){
  .js .reveal{ opacity:1; transform:none; }
  .servicio:hover{ transform:none; }
}