/* Pirkal — landing. Tokens según Manual de identidad v1.0 (§03 paleta, §04 tipografía). */
:root {
  --lapis: #22417E;
  --lapis2: #4A6FB8;
  --pirita: #C9A227;
  --roca: #12161B;
  --niebla: #EDEFF1;
  --gris: #6B7480;
  --linea: #CDD3DA;

  --bg: var(--niebla);
  --bg-alt: #E3E6EA;
  --fg: var(--roca);
  --card: #fff;
  --mono: var(--lapis);
  --acento: var(--lapis);

  --disp: 'Archivo', 'Helvetica Neue', Arial, sans-serif;
  --txt: 'Source Serif 4', Georgia, serif;
  --ut: 'IBM Plex Mono', ui-monospace, monospace;

  --nav-h: 68px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0D1014; --bg-alt: #12161B; --fg: #E6E9ED; --card: #171B21;
    --linea: #2A313B; --gris: #8D97A3; --mono: var(--lapis2); --acento: var(--lapis2);
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.6 var(--txt); }
img, svg { display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--disp); margin: 0; }
p { margin: 0 0 14px; }
.w { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.nowrap { white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--roca); color: var(--niebla); padding: 10px 14px; font: 13px var(--ut); }
.skip:focus { top: 12px; }
:focus-visible { outline: 2px solid var(--lapis2); outline-offset: 3px; }

.rotulo { font: 500 11px var(--ut); letter-spacing: .16em; text-transform: uppercase; color: var(--gris); margin: 0 0 14px; }
h2 { font-weight: 800; font-size: clamp(30px, 4.6vw, 48px); line-height: 1.02; font-stretch: 118%; letter-spacing: -.015em; margin-bottom: 18px; }
h3 { font-weight: 700; font-size: 19px; font-stretch: 110%; margin-bottom: 8px; }
.intro { max-width: 62ch; color: var(--gris); font-size: 18px; }

/* Botones */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: 600 15px var(--disp); font-stretch: 110%; letter-spacing: .01em;
  background: var(--lapis); color: #fff; border: 0; padding: 14px 22px;
  text-decoration: none; cursor: pointer; transition: background .2s, transform .2s;
}
.btn:hover { background: #1A3363; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .6; cursor: wait; }
.btn--sm { padding: 9px 16px; font-size: 14px; }
.btn--claro { background: var(--niebla); color: var(--roca); }
.btn--claro:hover { background: #fff; }
.enlace { font: 13px var(--ut); letter-spacing: .08em; color: var(--pirita); text-decoration: none; border-bottom: 1px solid rgba(201, 162, 39, .4); }
.enlace:hover { border-bottom-color: var(--pirita); }

/* Marca (monograma + logotipo) */
.marca { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.marca__ico { width: 30px; height: 30px; color: var(--mono); }
.marca__txt { font: 800 22px var(--disp); font-stretch: 118%; letter-spacing: -.01em; }

/* Navegación */
.nav { position: fixed; inset: 0 0 auto; z-index: 50; height: var(--nav-h); color: var(--niebla); transition: background .25s, color .25s, border-color .25s; border-bottom: 1px solid transparent; }
.nav .marca__ico { color: var(--lapis2); }
.nav--fija { background: color-mix(in srgb, var(--bg) 92%, transparent); color: var(--fg); border-bottom-color: var(--linea); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.nav--fija .marca__ico { color: var(--mono); }
.nav__in { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.nav__menu { display: flex; align-items: center; gap: 28px; }
.nav__menu a:not(.btn) { font: 500 12px var(--ut); letter-spacing: .12em; text-transform: uppercase; text-decoration: none; opacity: .85; }
.nav__menu a:not(.btn):hover { opacity: 1; }
.nav__toggle { display: none; background: none; border: 0; padding: 10px; cursor: pointer; color: inherit; }
.nav__toggle i { display: block; width: 22px; height: 2px; background: currentColor; margin: 5px 0; transition: transform .2s, opacity .2s; }
.nav__toggle[aria-expanded="true"] i:nth-of-type(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] i:nth-of-type(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] i:nth-of-type(3) { transform: translateY(-7px) rotate(-45deg); }

/* Textura de hiladas: baja opacidad (manual §05) */
.textura { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .22; pointer-events: none; }

/* Hero */
.hero { position: relative; overflow: hidden; background: var(--roca); color: var(--niebla); padding-top: var(--nav-h); }
.hero::after { content: ""; position: absolute; inset: 0; background: radial-gradient(ellipse at 75% 40%, transparent 0, var(--roca) 70%); opacity: .7; pointer-events: none; }
.hero__in { position: relative; z-index: 1; display: grid; grid-template-columns: 1.3fr 1fr; align-items: center; gap: 56px; min-height: min(86vh, 760px); padding-top: 56px; padding-bottom: 72px; }
.hero .rotulo { color: #7C8898; }
.hero h1 { font-weight: 800; font-size: clamp(40px, 5.6vw, 72px); line-height: .96; font-stretch: 122%; letter-spacing: -.025em; margin-bottom: 26px; }
.hero__lead { font-size: clamp(18px, 2vw, 21px); color: #B9C2CC; max-width: 46ch; margin-bottom: 34px; }
.hero__cta { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }

/* Secciones */
.sec { position: relative; padding: 104px 0; border-top: 1px solid var(--linea); }
.sec--alt { background: var(--bg-alt); }
.sec--oscuro { background: var(--roca); color: var(--niebla); border-top: 0; overflow: hidden; }
.sec--oscuro .rotulo { color: #7C8898; }
.sec--oscuro .w { position: relative; z-index: 1; }

/* Servicios */
.grilla { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; margin-top: 44px; }
.card { position: relative; background: var(--card); border: 1px solid var(--linea); padding: 28px 24px 26px; transition: border-color .2s, transform .2s; }
.card:hover { border-color: var(--acento); transform: translateY(-3px); }
.card p { font-size: 15.5px; color: var(--gris); }

/* Método: hiladas con juntas trabadas (cada fila desplazada) */
.muro { list-style: none; margin: 48px 0 0; padding: 0; display: grid; gap: 6px; }
.hilada { display: grid; grid-template-columns: 64px 1fr auto; gap: 24px; align-items: start; background: var(--card); border: 1px solid var(--linea); padding: 26px 28px; }
.hilada:nth-child(odd) { margin-right: 8%; }
.hilada:nth-child(even) { margin-left: 8%; }
.hilada__n { font: 800 34px/1 var(--disp); font-stretch: 120%; color: var(--acento); }
.hilada p { margin: 0; color: var(--gris); font-size: 16px; max-width: 60ch; }
.hilada__t { font: 11px var(--ut); letter-spacing: .12em; text-transform: uppercase; color: var(--gris); white-space: nowrap; padding-top: 6px; }



/* Oferta del hero: el primer paso concreto */
.oferta { position: relative; background: rgba(23, 27, 33, .88); border: 1px solid #2A313B; border-top: 3px solid var(--lapis2); padding: 30px 30px 24px; color: #B9C2CC; }
.oferta .rotulo { color: #7C8898; }
.oferta__t { font-size: 28px; color: var(--niebla); margin-bottom: 12px; }
.oferta p:not(.rotulo) { font-size: 15.5px; }
.lista-check { list-style: none; margin: 0 0 20px; padding: 0; display: grid; gap: 10px; font-size: 15.5px; }
.lista-check li { position: relative; padding-left: 26px; color: var(--niebla); }
.lista-check li::before { content: ""; position: absolute; left: 0; top: .45em; width: 12px; height: 7px; border-left: 2px solid var(--lapis2); border-bottom: 2px solid var(--lapis2); transform: rotate(-45deg); }
.oferta__pie { margin: 0; padding-top: 16px; border-top: 1px solid #2A313B; font: 13px var(--ut); color: var(--niebla); }
.oferta__pie span { color: #7C8898; text-transform: uppercase; letter-spacing: .12em; font-size: 11px; margin-right: 10px; }

/* Problemas */
.dolores { list-style: none; margin: 40px 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 4px; }
.dolores li { border-left: 2px solid var(--acento); background: var(--card); padding: 22px 26px; color: var(--gris); font-size: 16px; }
.dolores b { display: block; font: 700 18px var(--disp); font-stretch: 110%; color: var(--fg); margin-bottom: 6px; }

/* Servicios: resultado y enlace al formulario */
.card { display: flex; flex-direction: column; }
.card__res { margin-top: auto !important; padding-top: 16px; border-top: 1px solid var(--linea); color: var(--fg) !important; font-size: 15px !important; }
.card__res span, .hilada__e span { display: block; font: 500 11px var(--ut); letter-spacing: .14em; text-transform: uppercase; color: var(--acento); margin-bottom: 4px; }
.card__cta { margin-top: 6px; font: 600 14px var(--disp); font-stretch: 110%; color: var(--acento); text-decoration: none; }
.card__cta:hover { text-decoration: underline; text-underline-offset: 4px; }
.hilada__e { margin-top: 12px !important; color: var(--fg) !important; font-size: 15px !important; }
.hilada__e span { display: inline; margin-right: 8px; }

/* Compromisos */
.principios { list-style: none; margin: 40px 0 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 4px; }
.principios li { border-left: 2px solid var(--lapis2); padding: 20px 22px; background: rgba(255, 255, 255, .03); }
.principios p { margin: 0; font-size: 15.5px; color: #B9C2CC; }

/* Preguntas frecuentes */
.faq { display: grid; grid-template-columns: 1fr 1.4fr; gap: 64px; align-items: start; }
.faq__lista { border-top: 1px solid var(--linea); }
.faq details { border-bottom: 1px solid var(--linea); }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; gap: 16px; padding: 22px 0; font: 700 18px var(--disp); font-stretch: 110%; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font: 400 22px/1 var(--ut); color: var(--acento); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: -6px 0 22px; color: var(--gris); max-width: 60ch; }

/* Contacto */
.contacto { display: grid; grid-template-columns: 1fr 1.25fr; gap: 64px; align-items: start; }
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; background: var(--card); border: 1px solid var(--linea); padding: 32px; }
.campo { display: grid; gap: 6px; }
.campo--full { grid-column: 1 / -1; }
.campo label { font: 500 11px var(--ut); letter-spacing: .12em; text-transform: uppercase; color: var(--gris); }
.campo small { text-transform: none; letter-spacing: 0; }
.campo input, .campo select, .campo textarea {
  width: 100%; font: 16px var(--txt); color: var(--fg); background: var(--bg);
  border: 1px solid var(--linea); border-radius: 0; padding: 12px 14px; transition: border-color .2s;
}
.campo textarea { resize: vertical; min-height: 120px; }
.campo input:focus, .campo select:focus, .campo textarea:focus { outline: none; border-color: var(--acento); }
.campo [aria-invalid="true"] { border-color: #B3261E; }
.form__pie { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.form__estado { margin: 0; font: 13px var(--ut); color: var(--gris); }
.form__estado[data-tipo="ok"] { color: #2E7D4F; }
.form__estado[data-tipo="error"] { color: #B3261E; }
.trampa { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* Pie */
.pie { background: var(--roca); color: #8D97A3; padding: 48px 0; }
.pie__in { display: flex; justify-content: space-between; align-items: flex-start; gap: 32px; flex-wrap: wrap; }
.pie .marca { color: var(--niebla); }
.pie .marca__ico { width: 24px; height: 24px; color: var(--lapis2); }
.pie .marca__txt { font-size: 18px; }
.pie__marca p { margin: 12px 0 0; font-size: 14px; line-height: 1.5; max-width: 38ch; }
.pie__copy { margin: 0; font: 11px var(--ut); letter-spacing: .12em; text-transform: uppercase; }

/* Conversión. Pirita: un solo elemento por pantalla (manual §03) → sólo el CTA principal del hero. */
.btn--pirita { background: var(--pirita); color: var(--roca); }
.btn--pirita:hover { background: #D9B43A; }
.btn--linea { background: transparent; color: inherit; box-shadow: inset 0 0 0 1px currentColor; }
.btn--linea:hover { background: var(--lapis); color: #fff; box-shadow: none; }
.hero__sec { font: 500 13px var(--ut); letter-spacing: .08em; color: var(--niebla); text-decoration: none; border-bottom: 1px solid #4A5361; padding-bottom: 2px; }
.hero__sec:hover { border-bottom-color: var(--niebla); }
.hero__nota { margin: 22px 0 0; font-size: 15px; color: #8D97A3; max-width: 46ch; }
.pasos { list-style: none; counter-reset: paso; margin: 28px 0 0; padding: 0; display: grid; gap: 14px; }
.pasos li { counter-increment: paso; position: relative; padding-left: 44px; color: var(--gris); font-size: 16px; }
.pasos li::before { content: "0" counter(paso); position: absolute; left: 0; top: 1px; font: 500 13px var(--ut); color: var(--acento); }
.pasos b { color: var(--fg); }

/* Revelado al hacer scroll (sólo si hay JS y sin reduced-motion) */
.js .revela { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.js .revela.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .revela { opacity: 1; transform: none; transition: none; }
  .card, .btn { transition: none; }
}

/* Responsive */
@media (max-width: 880px) {
  .hero__in { grid-template-columns: 1fr; min-height: 0; padding-top: 48px; padding-bottom: 64px; }
  .dolores { grid-template-columns: 1fr; }
  .contacto, .faq { grid-template-columns: 1fr; gap: 40px; }
  .hilada:nth-child(n) { margin: 0; }
}
@media (max-width: 760px) {
  .nav__toggle { display: block; }
  .nav__menu {
    position: fixed; top: var(--nav-h); left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg); color: var(--fg); border-bottom: 1px solid var(--linea); padding: 8px 24px 24px;
    transform: translateY(-8px); opacity: 0; visibility: hidden; transition: opacity .2s, transform .2s, visibility .2s;
  }
  .nav__menu a:not(.btn) { padding: 16px 0; border-bottom: 1px solid var(--linea); font-size: 13px; }
  .nav__menu .btn { margin-top: 18px; }
  .nav--abierta .nav__menu { opacity: 1; visibility: visible; transform: none; }
  .nav--abierta { background: var(--bg); color: var(--fg); }
  .nav--abierta .marca__ico { color: var(--mono); }
  .sec { padding: 72px 0; }
  .hilada { grid-template-columns: 1fr; gap: 10px; padding: 22px; }
  .hilada__t { padding-top: 0; }
  .form { grid-template-columns: 1fr; padding: 22px; }
  .oferta { padding: 24px 22px 20px; }
}