/* -----------------------------
   MenuQRPlus • Diseño base
   Paleta de colores (variables CSS)
   ----------------------------- */
:root {
  --c-primary: #007f97; /* turquesa profundo */
  --c-primary-600: #006679;
  --c-secondary: #a4bcbc; /* verde-azulado suave */
  --c-accent: #7c587f; /* malva */
  --c-accent-700: #4c3f77; /* púrpura oscuro */
  --c-dark: #051126; /* casi negro azulado */
  --c-light: #f4f7f8;
  --c-white: #ffffff;
  --shadow-1: 0 10px 30px rgba(5, 17, 38, .08);
}

/* Reset mínimo y tipografía */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: 'Poppins', system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, 'Helvetica Neue', Arial, sans-serif;
  color: var(--c-dark);
  background: var(--c-light);
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* Utilidades */
.container { width: min(1120px, 92%); margin-inline: auto; }
.w-100 { width: 100%; }

/* Botones */
.btn {
  display: inline-block;
  padding: .85rem 1.1rem;
  border-radius: 999px;
  font-weight: 700;
  transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease;
  box-shadow: var(--shadow-1);
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--c-primary); color: var(--c-white); }
.btn--primary:hover { background: var(--c-primary-600); }
.btn--dark { background: var(--c-dark); color: var(--c-white); }
.btn--dark:hover { filter: brightness(1.1); }
.btn--ghost { background: #e7eff0; color: var(--c-dark); }
.btn--ghost:hover { background: #dbe7e9; }
.btn--sm { padding: .6rem .95rem; font-weight: 600; box-shadow: none; }
.btn--lg { padding: 1.05rem 1.4rem; font-size: 1.05rem; }

/* Header / Nav */
.header {
  position: sticky; top: 0; z-index: 50;
  background: var(--c-white);
  box-shadow: 0 1px 0 rgba(5, 17, 38, .06);
}
.nav { display: flex; align-items: center; justify-content: space-between; padding: 1rem 0; }
.brand { font-size: 1.5rem; font-weight: 800; letter-spacing: .2px; display: inline-flex; align-items: baseline; gap: .25rem; }
.brand__main { color: var(--c-primary); }
.brand__plus { color: var(--c-dark); }

.nav__links { display: flex; align-items: center; gap: 1.2rem; }
.nav__link { color: #2a2f3a; opacity: .85; font-weight: 500; }
.nav__link:hover { color: var(--c-primary); }
.nav__cta { margin-left: .5rem; }

/* Toggle móvil */
.nav__toggle { display: none; background: transparent; border: 0; cursor: pointer; }
.nav__toggle-line { width: 26px; height: 3px; background: var(--c-dark); display: block; margin: 5px 0; border-radius: 2px; }

@media (max-width: 920px) {
  .nav__toggle { display: inline-block; }
  .nav__links { position: fixed; inset: 64px 0 auto 0; background: var(--c-white); display: grid; gap: .75rem; padding: 1rem 1.2rem; transform: translateY(-140%); opacity: 0; pointer-events: none; transition: transform .25s ease, opacity .25s ease; border-bottom: 1px solid #e9eef0; }
  .nav__links--open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav__cta { justify-self: start; }
}

/* HERO */
.hero { position: relative; padding: clamp(3rem, 9vw, 7rem) 0; background: linear-gradient(135deg, var(--c-secondary), #c9dadb 70%); }
.hero__grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 2rem; align-items: center; }
.hero__title { font-size: clamp(2rem, 5vw, 3.5rem); line-height: 1.12; margin: 0 0 .75rem; color: var(--c-dark); font-weight: 800; }
.hero__subtitle { font-size: clamp(1rem, 2.4vw, 1.2rem); color: #1a2530; opacity: .85; margin: 0 0 1.25rem; }
.hero__img { border-radius: 18px; box-shadow: 0 30px 50px rgba(5, 17, 38, .12); }
.hero__wave { position: absolute; left: 0; right: 0; bottom: -1px; height: 60px; background: radial-gradient(100% 60px at 50% 0, rgba(255,255,255,.8), transparent 70%); }

@media (max-width: 920px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__media { order: -1; }
}

/* Secciones generales */
.section { padding: clamp(3rem, 8vw, 5rem) 0; background: var(--c-white); }
.section--alt { background: #f0f5f6; }
.section__head { text-align: center; margin-bottom: 2rem; }
.section__title { font-size: clamp(1.6rem, 3.5vw, 2.2rem); margin: 0 0 .35rem; }
.section__subtitle { color: #2a2f3a; opacity: .7; margin: 0; }

/* Grid utilitario */
.grid { display: grid; gap: 1.2rem; }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 1024px) { .grid--4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 720px)  { .grid--4, .grid--3 { grid-template-columns: 1fr; } }

/* Cards y features */
.card { background: var(--c-white); border: 1px solid #e7edf0; border-radius: 16px; padding: 1.2rem; box-shadow: var(--shadow-1); transition: transform .2s ease, border-color .2s ease; }
.card:hover { transform: translateY(-6px); border-color: var(--c-primary); }
.feature { text-align: center; padding: 1.6rem; }
.feature__icon { width: 64px; height: 64px; margin: 0 auto 1rem; border-radius: 50%; display: grid; place-items: center; font-weight: 800; background: linear-gradient(135deg, var(--c-primary), var(--c-accent)); color: var(--c-white); box-shadow: var(--shadow-1); }
.feature__title { margin: .4rem 0 .35rem; font-size: 1.1rem; }
.feature__text { opacity: .8; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3,1fr); gap: 1rem; }
.step { text-align: center; padding: 1.6rem; background: var(--c-white); border-radius: 16px; border: 1px solid #e7edf0; box-shadow: var(--shadow-1); }
.step__badge { width: 74px; height: 74px; margin: 0 auto .9rem; border-radius: 50%; display: grid; place-items: center; font-weight: 800; font-size: 1.3rem; color: var(--c-white); background: linear-gradient(135deg, var(--c-accent-700), var(--c-accent)); box-shadow: var(--shadow-1); }
.step__title { margin: .2rem 0 .3rem; }
.step__text { opacity: .85; }
@media (max-width: 920px) { .steps { grid-template-columns: 1fr; } }

/* Pricing */
.pricing { align-items: stretch; }
.price { position: relative; padding: 1.6rem; display: grid; gap: .7rem; }
.price__name { font-size: 1.4rem; font-weight: 800; color: var(--c-dark); margin: 0; }
.price__desc { color: #2a2f3a; opacity: .75; min-height: 2.5rem; }
.price__value { margin: .2rem 0; }
.price__amount { font-size: 2rem; font-weight: 800; }
.price__period { margin-left: .25rem; opacity: .65; font-weight: 600; }
.price__setup { font-size: .9rem; opacity: .7; }
.list { list-style: none; padding: 0; margin: .5rem 0 0; display: grid; gap: .5rem; }
.list li { position: relative; padding-left: 1.4rem; }
.list li::before { content: "✔"; position: absolute; left: 0; top: 0; color: #2db57a; font-weight: 800; }

.price--featured { border: 2px solid var(--c-primary); transform: translateY(-6px); }
.price--featured .badge { position: absolute; top: 0; left: 50%; transform: translate(-50%, -50%); background: var(--c-primary); color: var(--c-white); font-size: .7rem; font-weight: 800; padding: .35rem .6rem; border-radius: 999px; box-shadow: var(--shadow-1); letter-spacing: .3px; }

/* CTA */
.cta { background: linear-gradient(135deg, var(--c-accent-700), var(--c-primary)); color: var(--c-white); padding: clamp(2.6rem, 7vw, 4.6rem) 0; position: relative; }
.cta__box { text-align: center; }
.cta__title { font-size: clamp(1.6rem, 3.5vw, 2.2rem); margin: 0 0 .5rem; }
.cta__text { opacity: .92; margin: 0 0 1.1rem; }

/* Footer */
.footer { color: var(--c-white); background: radial-gradient(1200px 70% at 50% -10%, #162642, var(--c-dark)); margin-top: 2rem; }
.footer__grid { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 1rem; padding: 1.6rem 0; }
.brand--footer .brand__main { color: var(--c-secondary); }
.brand--footer .brand__plus { color: var(--c-white); }
.footer__claim { margin-top: .35rem; color: #b9c8d7; }
.footer__social { display: flex; gap: .6rem; }
.social { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 10px; background: rgba(255,255,255,.08); color: #e8f1ff; font-weight: 800; box-shadow: inset 0 0 0 1px rgba(255,255,255,.06); transition: transform .2s ease, background .2s ease; }
.social:hover { transform: translateY(-2px); background: rgba(255,255,255,.18); }
.footer__legal { text-align: center; padding: .9rem 0 1.2rem; color: #a0b3c7; border-top: 1px solid rgba(255,255,255,.08); font-size: .9rem; }

/* Accesibilidad focus */
:focus-visible { outline: 3px solid var(--c-secondary); outline-offset: 2px; border-radius: 6px; }