/* ============================================================
   Impuls Clínica — Variante C: "Tibio Wellness"
   Referencia: Alveos One (alveoslabs.com) · tendencia 2026
   Marca: Impuls Longevity · oro #c79325 · gris #666665
   Canvas crema cálida #fbf8f3 · Hanken Grotesk · esquinas muy suaves
   Oro SOLO en CTA/acentos · sombras difusas · nav en versalitas
   ============================================================ */

:root {
  --brand: #c79325;        /* oro Impuls Longevity */
  --brand-dark: #a67815;   /* oro profundo (hover) */
  --brand-ink: #8f6410;    /* oro legible como texto sobre claro */
  --brand-tint: #f6efdd;   /* fondo suave dorado */
  --canvas: #fbf8f3;       /* crema cálida */
  --surface: #ffffff;
  --graphite: #1a1712;     /* grafito cálido para footer */
  --ink: #2b2620;
  --body: #5c574f;
  --muted: #a5a09a;
  --line: #ece6dc;
  --wa: #27d061;

  --radius-card: 25px;
  --radius-img: 20px;
  --radius-btn: 12px;
  --maxw: 1160px;
  --gutter: clamp(20px, 5vw, 64px);
  --section-y: clamp(56px, 8vw, 104px);

  --shadow-card: rgba(0, 0, 0, 0.08) 0px 8px 30px 0px, rgba(0, 0, 0, 0.05) 0px 2px 8px 0px;
  --shadow-soft: rgba(0, 0, 0, 0.06) 0px 1px 5px 0px;

  --font: "Hanken Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  --track: 0.42em; /* versalitas aireadas, firma Alveos */
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--canvas);
  color: var(--body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
  color: var(--ink);
}

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding-inline: var(--gutter); }

.eyebrow {
  display: inline-block;
  font-size: 0.72rem; font-weight: 700;
  letter-spacing: var(--track); text-transform: uppercase;
  color: var(--brand-ink); margin-bottom: 6px;
}

.section { padding-block: var(--section-y); }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 15px 30px; border-radius: var(--radius-btn);
  font-weight: 600; font-size: 0.82rem; letter-spacing: 0.08em; text-transform: uppercase;
  cursor: pointer; border: 1px solid transparent;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--brand); color: #1c1405; box-shadow: 0 12px 26px -12px rgba(199,147,37,.55); }
.btn-primary:hover { background: var(--brand-dark); color: #1c1405; transform: translateY(-2px); }
.btn-ghost { background: transparent; border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--graphite); color: var(--graphite); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(252, 249, 247, 0.85);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 78px; }
.nav__logo img { height: 50px; width: auto; }
.nav__menu { display: flex; align-items: center; gap: 24px; list-style: none; margin: 0; padding: 0; }
.nav__menu a {
  font-size: 0.7rem; color: var(--ink); font-weight: 600;
  letter-spacing: 0.09em; text-transform: uppercase; transition: color .2s ease; white-space: nowrap;
}
.nav__menu a:hover { color: var(--brand-ink); }
.nav__right { display: flex; align-items: center; gap: 18px; }

.lang { display: flex; gap: 2px; align-items: center; border: 1px solid var(--line); border-radius: 999px; padding: 3px; background: #fff; }
.lang a { font-size: 0.72rem; font-weight: 700; letter-spacing: .08em; padding: 5px 10px; border-radius: 999px; color: var(--muted); }
.lang a.is-active { background: var(--brand); color: #1c1405; }

.nav__toggle { display: none; background: none; border: 0; cursor: pointer; width: 44px; height: 44px; color: var(--ink); }
.nav__toggle svg { width: 26px; height: 26px; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding-block: clamp(64px, 10vw, 140px);
  background: radial-gradient(1000px 620px at 50% -18%, #f7edd6 0%, var(--canvas) 58%);
}
.hero__grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(30px, 5vw, 68px); align-items: center; }
.hero h1 { font-size: clamp(2.4rem, 5.4vw, 4.1rem); font-weight: 600; margin-bottom: 22px; letter-spacing: -0.03em; }
.hero h1 .accent { color: var(--brand); }
.hero__lead { font-size: clamp(1.05rem, 1.6vw, 1.2rem); color: var(--body); max-width: 46ch; margin-bottom: 34px; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__trust { display: flex; gap: 28px; margin-top: 44px; flex-wrap: wrap; }
.hero__trust > div { flex: 0 0 auto; max-width: 132px; }
.hero__trust .num { font-size: 1.7rem; font-weight: 700; color: var(--ink); }
.hero__trust .lbl { font-size: .7rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.14em; }
.hero__media { position: relative; border-radius: var(--radius-img); overflow: hidden; aspect-ratio: 4 / 5; box-shadow: var(--shadow-card); }
.hero__media img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- Tira de marcas ---------- */
.brands { border-block: 1px solid var(--line); padding-block: 26px; background: var(--surface); }
.brands__row { display: flex; align-items: center; justify-content: center; gap: clamp(24px, 6vw, 72px); flex-wrap: wrap; color: var(--muted); font-weight: 600; letter-spacing: .12em; text-transform: uppercase; }
.brands__row span { font-size: clamp(.72rem, 1.1vw, .84rem); }

/* ---------- Encabezado de sección ---------- */
.section-head { max-width: 660px; margin-bottom: clamp(34px, 5vw, 56px); }
.section-head h2 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); margin-top: 8px; }
.section-head p { color: var(--body); font-size: 1.08rem; }

/* ---------- Servicios ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(258px, 1fr)); gap: 20px; }
.card {
  position: relative; background: var(--surface);
  border: 1px solid transparent; border-radius: var(--radius-card);
  padding: 30px 28px; box-shadow: var(--shadow-card);
  transition: transform .25s ease, box-shadow .25s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: rgba(0,0,0,.12) 0px 18px 44px 0px; }
.card__icon { width: 52px; height: 52px; border-radius: 16px; display: grid; place-items: center; margin-bottom: 20px; background: var(--brand-tint); color: var(--brand-ink); font-weight: 800; font-size: 1.25rem; }
.card__icon svg { width: 25px; height: 25px; }
.card h3 { font-size: 1.16rem; margin-bottom: 8px; font-weight: 600; }
.card p { font-size: .95rem; color: var(--body); margin: 0; }
.card__link { display: inline-flex; align-items: center; gap: 6px; margin-top: 18px; font-size: .72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--brand-ink); }

/* ---------- Programas destacados (editorial) ---------- */
.program { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(30px, 5vw, 72px); align-items: center; padding-block: clamp(40px, 6vw, 80px); }
.program + .program { border-top: 1px solid var(--line); }
.program--rev .program__media { order: 2; }
.program__media { border-radius: var(--radius-lg); overflow: hidden; aspect-ratio: 4 / 5; box-shadow: var(--shadow-card); }
.program__media img { width: 100%; height: 100%; object-fit: cover; }
.program__badge { display: inline-block; font-size: .7rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--brand-ink); margin-bottom: 14px; }
.program h2 { font-size: clamp(2rem, 3.6vw, 2.8rem); margin: 0 0 8px; }
.program__tag { color: var(--body); font-size: 1.12rem; margin: 0 0 20px; }
.program__desc p { color: var(--body); margin: 0 0 12px; font-size: 1.03rem; }
.program__list-title { font-size: .76rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin: 24px 0 12px; }
.program__list { list-style: none; padding: 0; margin: 0 0 8px; display: grid; gap: 11px; }
.program__list li { display: flex; gap: 11px; align-items: flex-start; color: var(--body); font-size: .98rem; }
.program__list svg { flex: none; width: 20px; height: 20px; color: var(--brand-ink); margin-top: 2px; }
.program__pricing { border-top: 1px solid var(--line); margin-top: 26px; padding-top: 22px; display: grid; gap: 12px; }
.program__price-line { display: flex; justify-content: space-between; align-items: baseline; gap: 18px; }
.program__price-line span { color: var(--muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; }
.program__price-line b { font-size: 1.4rem; font-weight: 700; color: var(--ink); text-align: right; line-height: 1.15; }
.program__price-line b small { display: block; font-weight: 400; font-size: .72rem; color: var(--muted); letter-spacing: 0; text-transform: none; margin-top: 2px; }
.program__content .btn { margin-top: 28px; }
@media (max-width: 860px) { .program { grid-template-columns: 1fr; gap: 26px; } .program--rev .program__media { order: 0; } .program__media { aspect-ratio: 16 / 11; } }

/* ---------- Tarjeta de diagnóstico ---------- */
.diag { display: flex; gap: clamp(20px, 4vw, 44px); align-items: center; background: var(--brand-tint); border-radius: var(--radius-lg); padding: clamp(24px, 4vw, 38px); margin-top: 28px; flex-wrap: wrap; }
.diag__prices { display: flex; flex-direction: column; gap: 18px; min-width: 150px; }
.diag__price { display: flex; flex-direction: column; gap: 4px; }
.diag__price span { font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--brand-ink); }
.diag__price b { font-size: 2rem; font-weight: 800; color: var(--ink); line-height: 1; }
.diag__text { flex: 1; min-width: 260px; }
.diag__text p { color: var(--body); margin: 0 0 8px; font-size: .98rem; }
.diag__cond { color: var(--muted); font-size: .84rem; }

/* ---------- Foto de equipo ---------- */
.team-photo { border-radius: var(--radius-img); overflow: hidden; box-shadow: var(--shadow-card); }
.team-photo img { width: 100%; height: auto; display: block; }

/* ---------- Índice (TOC) y volver arriba (páginas legales) ---------- */
.toc { max-width: 760px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 28px; margin-bottom: 42px; box-shadow: var(--shadow-soft); }
.toc h2 { font-size: .76rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin: 0 0 14px; }
.toc ul { columns: 2; column-gap: 40px; margin: 0; padding: 0; list-style: none; }
.toc li { margin-bottom: 9px; break-inside: avoid; }
.toc a { color: var(--brand-ink); font-size: .95rem; }
.toc a:hover { text-decoration: underline; }
@media (max-width: 640px) { .toc ul { columns: 1; } }
.to-top { position: fixed; left: 22px; bottom: 22px; z-index: 90; width: 46px; height: 46px; border-radius: 50%; background: var(--brand); color: #1c1405; display: grid; place-items: center; box-shadow: var(--shadow-card); opacity: 0; visibility: hidden; transform: translateY(8px); transition: opacity .25s ease, transform .25s ease, visibility .25s ease; }
.to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--brand-dark); }
.to-top svg { width: 22px; height: 22px; }

/* ---------- Prosa / texto largo ---------- */
.prose { max-width: 760px; }
.prose h2 { scroll-margin-top: 96px; }
.prose + .prose { margin-top: 34px; }
.prose h2 { font-size: clamp(1.6rem, 2.8vw, 2.2rem); }
.prose p { color: var(--body); margin: 0 0 1em; font-size: 1.06rem; }
.prose.sources { margin-top: 34px; border-top: 1px solid var(--line); padding-top: 24px; }
.prose.sources ul { margin: 0 0 12px; padding-left: 1.1em; }
.prose.sources li { color: var(--body); margin-bottom: 6px; }
.prose.sources a { color: var(--brand-ink); font-weight: 600; }

/* ---------- Horario y mapa (Contacto) ---------- */
.hours { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.hours li { color: var(--body); font-size: .96rem; }
.card h3 + p, .card > p { color: var(--body); }
.card a { color: var(--brand-ink); font-weight: 600; }
.map { margin-top: 22px; border-radius: var(--radius-img); overflow: hidden; box-shadow: var(--shadow-card); }
.map iframe { width: 100%; height: 420px; border: 0; display: block; }

/* ---------- Sección superficie ---------- */
.section--mint { background: var(--surface); }
.section--wellness { background: var(--brand-tint); }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(30px, 5vw, 64px); align-items: center; }
.split__media { border-radius: var(--radius-img); overflow: hidden; aspect-ratio: 5 / 4; box-shadow: var(--shadow-card); }
.split__media img { width: 100%; height: 100%; object-fit: cover; }
.split__text h2 { font-size: clamp(1.8rem, 3.2vw, 2.6rem); }
.split__text p { color: var(--body); }
.checklist { list-style: none; padding: 0; margin: 26px 0 0; display: grid; gap: 15px; }
.checklist li { display: flex; gap: 12px; align-items: flex-start; }
.checklist svg { flex: none; width: 22px; height: 22px; color: var(--brand-ink); margin-top: 2px; }

/* ---------- Tecnologías ---------- */
.tech-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.tech { border: 1px solid var(--line); border-radius: var(--radius-card); padding: 28px 26px; background: var(--surface); box-shadow: var(--shadow-soft); }
.tech .k { color: var(--ink); font-weight: 700; font-size: 1.05rem; }
.tech .k::before { content: "—"; color: var(--brand-ink); margin-right: 8px; }
.tech p { color: var(--body); font-size: .92rem; margin: 8px 0 0; }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 14px; max-width: 820px; }
.faq details { border: 1px solid var(--line); border-radius: var(--radius-card); padding: 8px 24px; background: var(--surface); box-shadow: var(--shadow-soft); }
.faq summary { cursor: pointer; list-style: none; padding: 16px 0; font-weight: 600; font-size: 1.05rem; color: var(--ink); display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--brand-ink); font-size: 1.4rem; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq p { color: var(--body); margin: 0 0 18px; }

/* ---------- CTA / Formulario ---------- */
.cta {
  background: var(--surface); border: 1px solid var(--line); border-radius: 32px;
  padding: clamp(30px, 5vw, 60px); box-shadow: var(--shadow-card);
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(30px, 5vw, 56px); align-items: center;
}
.cta h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
.cta p { color: var(--body); }
.form { display: grid; gap: 14px; position: relative; }
.form input, .form textarea, .form select {
  width: 100%; padding: 15px 18px; border-radius: 14px;
  border: 1px solid var(--line); background: var(--canvas);
  color: var(--ink); font-family: inherit; font-size: 1rem;
}
.form input::placeholder, .form textarea::placeholder { color: var(--muted); }
.phone-row { display: flex; gap: 8px; }
.phone-row input { flex: 1; min-width: 0; }
.phone-row .phone-code { width: auto; flex: 0 0 auto; padding-inline: 12px; }
.form input:focus, .form textarea:focus, .form select:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(199,147,37,.18); }
.form .hp { position: absolute; left: -9999px; }
.form small { color: var(--muted); font-size: .8rem; }
.form small a { color: var(--brand-ink); }

/* ---------- Footer ---------- */
.footer { background: var(--graphite); color: #cfcac6; padding-top: clamp(50px, 7vw, 82px); }
.footer h4 { font-size: .68rem; letter-spacing: .18em; text-transform: uppercase; color: #fff; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 44px; }
.footer__brand img { height: 56px; margin-bottom: 18px; }
.footer__brand p { color: #a7a29d; font-size: .92rem; max-width: 34ch; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer ul a, .footer ul li { color: #a7a29d; font-size: .93rem; }
.footer ul a:hover { color: #fff; }
.footer__legal-note { font-size: .78rem; color: #8b8681; line-height: 1.7; border-top: 1px solid rgba(255,255,255,.1); padding-block: 22px; }
.footer__bottom { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; border-top: 1px solid rgba(255,255,255,.1); padding-block: 22px; color: #8b8681; font-size: .85rem; }
.footer__bottom a:hover { color: #fff; }
.socials { display: flex; gap: 12px; }
.socials a { width: 40px; height: 40px; border-radius: 50%; border: 1px solid rgba(255,255,255,.16); display: grid; place-items: center; color: #cfcac6; transition: all .2s ease; }
.socials a:hover { border-color: var(--brand); background: var(--brand); color: #fff; }
.socials svg { width: 18px; height: 18px; }

/* ---------- WhatsApp flotante ---------- */
.wa-float { position: fixed; right: 22px; bottom: 22px; z-index: 90; width: 58px; height: 58px; border-radius: 50%; background: var(--wa); display: grid; place-items: center; box-shadow: 0 12px 30px -8px rgba(39,208,97,.6); transition: transform .2s ease; }
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 30px; height: 30px; color: #fff; }

/* ---------- Accesibilidad ---------- */
.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; }
.skip { position: absolute; left: -9999px; top: 0; z-index: 200; background: var(--brand); color: #1c1405; padding: 10px 16px; border-radius: 0 0 10px 0; font-weight: 700; }
.skip:focus { left: 0; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, summary:focus-visible { outline: 3px solid var(--brand); outline-offset: 2px; border-radius: 4px; }

/* ---------- Formulario mejorado ---------- */
.form__field { display: block; margin: 0; }
.form__check { display: flex; gap: 10px; align-items: flex-start; font-size: .85rem; color: var(--body); cursor: pointer; }
.form__check input { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--brand); flex: none; }
.form__check a { color: var(--brand-ink); font-weight: 600; }
.form__success { display: none; background: var(--brand-tint); border: 1px solid var(--brand); color: var(--brand-ink); padding: 16px 18px; border-radius: 12px; font-weight: 600; }
.form.is-sent > *:not(.form__success) { display: none; }
.form.is-sent .form__success { display: block; }

/* ---------- Banner de cookies ---------- */
.cookie-banner { position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 120; max-width: 640px; margin: 0 auto; background: #fff; border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow-card); padding: 20px 22px; display: flex; flex-direction: column; gap: 14px; }
.cookie-banner[hidden] { display: none; }
.cookie-banner p { margin: 0; font-size: .9rem; color: var(--body); }
.cookie-banner a { color: var(--brand-ink); font-weight: 600; }
.cookie-banner__btns { display: flex; gap: 10px; justify-content: flex-end; flex-wrap: wrap; }
.cookie-banner .btn { padding: 11px 22px; }
@media (max-width: 560px) { .cookie-banner__btns .btn { flex: 1; } }

/* ---------- Bloque "Por qué" (confianza) ---------- */
.why-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.why { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); padding: 28px 26px; box-shadow: var(--shadow-soft); }
.why .why__n { font-size: 1.9rem; font-weight: 800; color: var(--brand-ink); }
.why h3 { font-size: 1.1rem; margin: 6px 0 8px; }
.why p { color: var(--body); font-size: .94rem; margin: 0; }

/* ---------- Responsive ---------- */
/* Colapsa el menú a hamburguesa abans (4 idiomes + 5 enllaços atapeeixen la capçalera) */
@media (max-width: 1100px) {
  .nav__menu, .nav__right .btn { display: none; }
  .nav__toggle { display: grid; place-items: center; }
  .nav[data-open="true"] .nav__menu { display: flex; position: absolute; left: 0; right: 0; top: 78px; flex-direction: column; gap: 0; background: var(--surface); border-bottom: 1px solid var(--line); padding: 8px 0; }
  .nav[data-open="true"] .nav__menu a { padding: 14px var(--gutter); width: 100%; }
}
@media (max-width: 960px) {
  .hero__grid, .split, .cta { grid-template-columns: 1fr; }
  .hero__media { aspect-ratio: 16/11; }
  .lang a { padding: 8px 13px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer__grid { grid-template-columns: 1fr; }
  .hero__trust { gap: 22px; }
  .nav { gap: 10px; }
  .nav__logo img { height: 40px; }
  .lang { padding: 2px; }
  .lang a { padding: 6px 9px; font-size: .68rem; letter-spacing: .02em; }
}