/* ==========================================================================
   AYRE S.L. Ingenieros — hoja de estilos del sitio publico
   Paleta tomada del logotipo: azul claro del trazado + azul del texto.
   ========================================================================== */

:root{
  --blue-900:#16324a;
  --blue-800:#1b4062;
  --blue-700:#245279;
  --blue-600:#2f6fa8;
  --blue-500:#4a7fb5;
  --blue-400:#6b96c6;
  --blue-300:#8fa9d5;
  --blue-200:#c3d6ea;
  --blue-100:#dde9f5;
  --blue-050:#f2f7fc;

  --ink:#15232f;
  --body:#4d5f6e;
  --muted:#7b8b99;
  --line:#dce5ee;
  --white:#ffffff;

  --radius:14px;
  --radius-sm:9px;
  --shadow:0 1px 2px rgba(22,50,74,.06), 0 8px 28px rgba(22,50,74,.07);
  --shadow-lg:0 18px 48px rgba(22,50,74,.14);
  --wrap:1180px;
  --header-h:78px;

  --font:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);color:var(--body);background:var(--white);
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--blue-600);text-decoration:none}
a:hover{color:var(--blue-800)}
h1,h2,h3,h4{color:var(--ink);line-height:1.18;margin:0 0 .5em;font-weight:650;letter-spacing:-.015em}
h1{font-size:clamp(2.1rem,4.6vw,3.35rem)}
h2{font-size:clamp(1.65rem,3vw,2.35rem)}
h3{font-size:1.2rem}
p{margin:0 0 1.1em}
ul.plain{list-style:none;margin:0;padding:0}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.narrow{max-width:760px}
.center{text-align:center}
.section{padding:88px 0}
.section-tight{padding:56px 0}
.section-pale{background:var(--blue-050);border-block:1px solid var(--blue-100)}

.eyebrow{
  text-transform:uppercase;letter-spacing:.14em;font-size:.72rem;font-weight:700;
  color:var(--blue-500);margin:0 0 .6em;
}
.lead{font-size:1.16rem;color:var(--body);max-width:62ch}
.section-head{max-width:70ch;margin-bottom:44px}
.section-head.center{margin-inline:auto}

.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:12px;z-index:100;background:#fff;padding:10px 16px;border-radius:8px}

/* ---------- Botones ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  padding:.82em 1.5em;border-radius:999px;font-weight:600;font-size:.97rem;
  border:1.5px solid transparent;cursor:pointer;transition:.18s ease;
  text-align:center;
}
.btn-primary{background:var(--blue-600);color:#fff;box-shadow:0 6px 18px rgba(47,111,168,.28)}
.btn-primary:hover{background:var(--blue-700);color:#fff;transform:translateY(-1px)}
.btn-ghost{border-color:var(--blue-200);color:var(--blue-700);background:#fff}
.btn-ghost:hover{border-color:var(--blue-500);background:var(--blue-050)}
.btn-light{background:#fff;color:var(--blue-800)}
.btn-light:hover{background:var(--blue-050);color:var(--blue-900)}
.btn-lg{padding:1em 1.9em;font-size:1.03rem}

/* ---------- Cabecera ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.93);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:var(--header-h)}
.brand img{height:54px;width:auto}
.nav{display:flex;align-items:center;gap:26px}
.nav>a{color:var(--ink);font-weight:550;font-size:.98rem;padding:6px 0;position:relative}
.nav>a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--blue-500);
  transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav>a:hover::after,.nav>a.is-active::after{transform:scaleX(1)}
.nav>a.is-active{color:var(--blue-700)}
.nav .btn{color:#fff}
.lang{display:flex;gap:2px;background:var(--blue-050);border:1px solid var(--blue-100);border-radius:999px;padding:3px}
.lang a{font-size:.78rem;font-weight:700;letter-spacing:.04em;color:var(--muted);padding:4px 10px;border-radius:999px}
.lang a.is-active{background:var(--blue-600);color:#fff}
.navtoggle,.burger{display:none}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(170deg,var(--blue-050) 0%,#fff 62%)}
.hero-inner{position:relative;z-index:2;padding:96px 0 104px;max-width:44rem}
.hero h1{margin-bottom:.35em}
.hero .lead{font-size:1.22rem;margin-bottom:2em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-art{
  position:absolute;inset:0;left:auto;width:min(52%,700px);z-index:1;
  color:var(--blue-300);opacity:.45;pointer-events:none;
}
.hero-art svg{height:100%;width:100%}
.hero-tags{list-style:none;display:flex;flex-wrap:wrap;gap:10px;margin:38px 0 0;padding:28px 0 0;
  border-top:1px solid var(--blue-100)}
.hero-tags li{font-size:.83rem;font-weight:600;color:var(--blue-700);background:rgba(255,255,255,.8);
  border:1px solid var(--blue-100);border-radius:999px;padding:.42em 1.05em}

/* ---------- Rejillas ---------- */
.grid{display:grid;gap:26px}
.grid-3{grid-template-columns:repeat(auto-fill,minmax(310px,1fr))}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(340px,1fr))}
.grid-4{grid-template-columns:repeat(auto-fill,minmax(230px,1fr))}

/* ---------- Tarjetas de proyecto ---------- */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:.2s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--blue-200)}
.card-media{display:block;aspect-ratio:16/10;background:var(--blue-050);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-placeholder{
  display:grid;place-items:center;height:100%;color:var(--blue-300);
  background:repeating-linear-gradient(135deg,var(--blue-050),var(--blue-050) 14px,#fff 14px,#fff 28px);
}
.card-placeholder svg{width:76px;height:76px}
.card-body{padding:22px 24px 24px;flex:1;display:flex;flex-direction:column}
.card-body h3{margin-bottom:.4em;font-size:1.14rem}
.card-body h3 a{color:var(--ink)}
.card-body h3 a:hover{color:var(--blue-600)}
.card-body p{font-size:.95rem;margin-bottom:.9em}
.card-meta{margin-top:auto;display:flex;gap:14px;font-size:.82rem;color:var(--muted)}
.card-meta span::before{content:"";display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--blue-300);margin-right:8px;vertical-align:middle}

/* ---------- Servicios ---------- */
.service{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 28px;transition:.2s ease;height:100%;
}
.service{color:var(--body)}
.service:hover{border-color:var(--blue-300);box-shadow:var(--shadow)}
a.service h3{color:var(--ink)}
a.service:hover h3{color:var(--blue-700)}
.service .ico{
  width:52px;height:52px;border-radius:13px;display:grid;place-items:center;
  background:var(--blue-050);color:var(--blue-600);margin-bottom:18px;border:1px solid var(--blue-100);
}
.service .ico svg{width:28px;height:28px}
.service h3{font-size:1.1rem;margin-bottom:.45em}
.service p{font-size:.95rem;margin:0}
.service-detail{display:grid;grid-template-columns:minmax(0,1fr);gap:10px}

/* ---------- Franja CTA ---------- */
.cta-band{background:linear-gradient(120deg,var(--blue-800),var(--blue-600));color:#fff;position:relative;overflow:hidden}
.cta-band h2{color:#fff}
.cta-band p{color:rgba(255,255,255,.86);max-width:56ch;margin-inline:auto}
.cta-band .wrap{position:relative;z-index:2;padding-block:74px;text-align:center}
.cta-band::after{
  content:"";position:absolute;inset:auto -10% -60% auto;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.14),transparent 62%);
}

/* ---------- Filtros ---------- */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.chip{
  padding:.5em 1.1em;border-radius:999px;border:1px solid var(--blue-100);background:#fff;
  font-size:.88rem;font-weight:550;color:var(--body);
}
.chip:hover{border-color:var(--blue-400);color:var(--blue-700)}
.chip.is-active{background:var(--blue-600);border-color:var(--blue-600);color:#fff}

/* ---------- Ficha de proyecto ---------- */
.project-hero{background:var(--blue-050);border-bottom:1px solid var(--blue-100);padding:56px 0 0}
.project-hero .back{font-size:.9rem;color:var(--blue-600)}
.project-hero h1{margin:.35em 0 .3em}
.project-cover{margin-top:40px;border-radius:var(--radius) var(--radius) 0 0;overflow:hidden;box-shadow:var(--shadow-lg)}
.project-cover img{width:100%;max-height:560px;object-fit:cover}
.project-layout{display:grid;grid-template-columns:minmax(0,1.75fr) minmax(260px,.85fr);gap:56px;align-items:start}
.project-body p{font-size:1.04rem}
.factsheet{
  background:var(--blue-050);border:1px solid var(--blue-100);border-radius:var(--radius);
  padding:26px 26px 10px;position:sticky;top:calc(var(--header-h) + 20px);
}
.factsheet dt{font-size:.74rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);font-weight:700}
.factsheet dd{margin:.2em 0 1.2em;color:var(--ink);font-weight:550}
.scope-list{list-style:none;margin:0;padding:0}
.scope-list li{position:relative;padding-left:26px;margin-bottom:.6em}
.scope-list li::before{
  content:"";position:absolute;left:0;top:.55em;width:11px;height:11px;border-radius:3px;
  border:2px solid var(--blue-400);
}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}
.gallery img{border-radius:var(--radius-sm);width:100%;aspect-ratio:4/3;object-fit:cover;border:1px solid var(--line)}
.gallery figure{margin:0}
.gallery figcaption{font-size:.84rem;color:var(--muted);margin-top:.5em}

/* ---------- Equipo ---------- */
.member{text-align:center}
.member .avatar{
  width:132px;height:132px;border-radius:50%;object-fit:cover;margin:0 auto 16px;
  border:4px solid var(--blue-050);box-shadow:var(--shadow);
}
.member .avatar-fallback{
  width:132px;height:132px;border-radius:50%;margin:0 auto 16px;display:grid;place-items:center;
  background:var(--blue-050);color:var(--blue-500);font-size:2.1rem;font-weight:650;border:1px solid var(--blue-100);
}
.member h3{margin-bottom:.15em;font-size:1.08rem}
.member .role{color:var(--blue-600);font-size:.9rem;font-weight:600;margin-bottom:.6em}
.member p{font-size:.92rem}

/* ---------- Formulario ---------- */
.contact-layout{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr);gap:56px;align-items:start}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow)}
.field{margin-bottom:20px}
.field label{display:block;font-size:.88rem;font-weight:600;color:var(--ink);margin-bottom:.45em}
.field label .opt{font-weight:400;color:var(--muted)}
.field input,.field textarea,.field select{
  width:100%;padding:.78em .95em;border:1.5px solid var(--line);border-radius:var(--radius-sm);
  font:inherit;font-size:.97rem;color:var(--ink);background:#fff;transition:.15s;
}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--blue-400);box-shadow:0 0 0 4px rgba(74,127,181,.13);
}
.field textarea{min-height:150px;resize:vertical}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.check{display:flex;gap:11px;align-items:flex-start;font-size:.9rem}
.check input{width:auto;margin-top:.25em;accent-color:var(--blue-600)}
.hp{position:absolute;left:-9999px}
.alert{padding:16px 20px;border-radius:var(--radius-sm);margin-bottom:24px;font-size:.95rem}
.alert-ok{background:#e8f5ec;border:1px solid #b8e0c6;color:#1c6b3a}
.alert-error{background:#fdecec;border:1px solid #f5c3c3;color:#a12b2b}
.contact-aside{background:var(--blue-050);border:1px solid var(--blue-100);border-radius:var(--radius);padding:30px}
.contact-aside h3{font-size:1.02rem}
.contact-list{list-style:none;margin:0 0 22px;padding:0}
.contact-list li{display:flex;gap:12px;margin-bottom:14px;font-size:.95rem;align-items:flex-start}
.contact-list svg{width:19px;height:19px;flex:none;color:var(--blue-500);margin-top:.2em}

/* ---------- Pie ---------- */
.site-footer{background:var(--blue-900);color:rgba(255,255,255,.74);margin-top:0;padding:66px 0 26px;font-size:.94rem}
.site-footer h3{color:#fff;font-size:.8rem;text-transform:uppercase;letter-spacing:.12em;margin-bottom:1.1em}
.site-footer a{color:rgba(255,255,255,.74)}
.site-footer a:hover{color:#fff}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr;gap:44px;padding-bottom:44px}
.footer-logo{height:58px;width:auto;margin-bottom:16px}
.footer-tagline{max-width:34ch;color:rgba(255,255,255,.62)}
.plain li{margin-bottom:.6em}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.13);padding-top:22px;font-size:.85rem;color:rgba(255,255,255,.5);
}
.muted-link{color:rgba(255,255,255,.42)!important}

.empty{padding:60px 20px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:var(--radius)}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  .project-layout,.contact-layout{grid-template-columns:1fr;gap:36px}
  .factsheet{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero-art{opacity:.28;width:78%}
}
@media (max-width:760px){
  body{font-size:16px}
  .section{padding:62px 0}
  .hero-inner{padding:64px 0 72px}
  .burger{
    display:flex;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;
    cursor:pointer;border-radius:10px;border:1px solid var(--line);padding:0 11px;
  }
  .burger span{display:block;height:2px;background:var(--ink);border-radius:2px;transition:.2s}
  .nav{
    position:fixed;inset:var(--header-h) 0 auto 0;background:#fff;flex-direction:column;
    align-items:stretch;gap:0;padding:14px 24px 26px;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-lg);display:none;
  }
  .navtoggle:checked~.nav{display:flex}
  .nav>a{padding:14px 0;border-bottom:1px solid var(--blue-050)}
  .nav>a::after{display:none}
  .lang{margin:16px 0;align-self:flex-start}
  .nav-cta{margin-top:6px}
  .field-row{grid-template-columns:1fr;gap:0}
  .footer-grid{grid-template-columns:1fr}
  .hero-tags{gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}