/* amarúa — paleta «Pissarra i blau» (manual d'identitat v1) */
:root {
  --ink: #232831;
  --bg: #eef0f2;
  --acc: #46638f;
  --acc2: #7f9cc7;
  --sub: #535a66;
  --line: #d5d9df;
  --muted: #9299a5;
  --bg2: #f6f7f9;
  --onink: #b3bac6;
  --inkline: #424955;
  --glass: rgba(238, 240, 242, .92);

  --f-title: 'Archivo', sans-serif;
  --f-text: 'Instrument Sans', sans-serif;
  --f-mono: 'DM Mono', monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 16px/1.55 var(--f-text);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; }

.wrap { max-width: 1240px; margin: 0 auto; padding-left: 32px; padding-right: 32px; }
@media (max-width: 600px) { .wrap { padding-left: 20px; padding-right: 20px; } }

.dark { background: var(--ink); color: var(--bg); }
.dark .label--acc { color: var(--acc2); }
.dark .label--sub { color: var(--onink); }
.dark .form__error { color: var(--acc2); }
.dark .thanks { background: var(--inkline); }
.dark .lead, .dark .step p { color: var(--onink); }
.dark .dot, .dark .step__n { color: var(--acc2); }
.dark .btn--primary { background: var(--bg); color: var(--ink); border-color: var(--bg); }
.dark .btn--primary:hover { background: var(--acc2); border-color: var(--acc2); color: var(--ink); }
.dark .btn--ghost { color: var(--bg); border-color: var(--bg); }
.dark .btn--ghost:hover { background: var(--bg); color: var(--ink); }

/* Etiquetes */
.label {
  font: 500 13px var(--f-mono);
  letter-spacing: .2em;
  text-transform: uppercase;
  white-space: nowrap;
}
.label--acc { color: var(--acc); }
.label--sub { color: var(--sub); }
.label--muted { color: var(--muted); }

/* Logotip (SVG de marca-amarua) */
.logo { display: flex; align-items: center; }
.logo img { height: 30px; width: auto; display: block; }

/* Botons */
.btn {
  display: inline-block;
  white-space: nowrap;
  padding: 15px 24px;
  border-radius: 3px;
  font: 500 16px var(--f-text);
  border: 1px solid var(--ink);
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.btn--primary { background: var(--ink); color: var(--bg); }
.btn--primary:hover { background: var(--acc); border-color: var(--acc); color: #fff; }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--bg); }

/* Capçalera */
.header {
  position: sticky; top: 0; z-index: 5;
  background: var(--glass);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header__in { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding-top: 18px; padding-bottom: 18px; }
.nav { display: flex; gap: clamp(16px, 2.5vw, 32px); align-items: center; font: 500 15px var(--f-text); white-space: nowrap; }
.nav__link { color: var(--sub); transition: color .15s; }
.nav__link:hover { color: var(--ink); }
.nav .btn { padding: 11px 20px; font-size: 15px; }
.lang { display: flex; gap: 10px; font: 500 12px var(--f-mono); letter-spacing: .1em; text-transform: uppercase; }
.lang a { color: var(--muted); }
.lang a:hover, .lang a[aria-current="true"] { color: var(--ink); }
@media (max-width: 760px) {
  .nav__link { display: none; }
}

/* Inici */
.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr));
  gap: 48px 64px;
  align-items: end;
  padding-top: 72px; padding-bottom: 64px;
}
.hero__title { display: flex; flex-direction: column; gap: 32px; }
.hero h1 { margin: 0; font: 600 clamp(48px, 7vw, 96px)/.98 var(--f-title); letter-spacing: -.04em; text-wrap: balance; }
.hero__side { display: flex; flex-direction: column; gap: 28px; padding-bottom: 12px; }
.lead { margin: 0; font: 400 19px/1.55 var(--f-text); color: var(--sub); text-wrap: pretty; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* Seccions */
.section { padding-top: 112px; padding-bottom: 112px; display: flex; flex-direction: column; gap: 64px; }
.section--tight { padding-top: 96px; padding-bottom: 96px; gap: 56px; }
@media (max-width: 600px) { .section, .section--tight { padding-top: 72px; padding-bottom: 72px; gap: 40px; } }
.section__head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 20px 48px; align-items: flex-end; }
.section__head h2 {
  margin: 0; flex: 1 1 560px; max-width: 880px; text-align: right;
  font: 600 clamp(32px, 4vw, 52px)/1.04 var(--f-title); letter-spacing: -.03em; text-wrap: balance;
}
.section__head h2.big { font-size: clamp(36px, 5vw, 68px); line-height: 1; letter-spacing: -.035em; }
@media (max-width: 760px) { .section__head h2 { text-align: left; } }
.dot { color: var(--acc); }

/* Serveis */
.services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
  gap: 1px;
  background: var(--inkline);
  border: 1px solid var(--inkline);
}
.service { background: var(--ink); padding: 32px 28px 40px; display: flex; flex-direction: column; gap: 20px; min-height: 240px; transition: background .15s; }
.service:hover { background: #2a2f38; }
.service__n { display: flex; gap: 10px; align-items: center; font: 500 13px var(--f-mono); color: var(--acc2); }
.service__n::before { content: ""; width: 22px; height: 16px; background: url(/assets/img/nucli-clar.svg) center / contain no-repeat; }
.service h3 { margin: 0; font: 600 26px/1.1 var(--f-title); letter-spacing: -.02em; }
.service p { margin: 0; font: 400 16px/1.55 var(--f-text); color: var(--onink); text-wrap: pretty; }

/* Com treballem */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); gap: 40px 32px; }
.step { display: flex; flex-direction: column; gap: 16px; border-top: 1px solid var(--line); padding-top: 24px; }
.step__mark { display: flex; gap: 12px; align-items: center; }
.step__mark::before { content: ""; width: 28px; height: 20px; background: url(/assets/img/nucli.svg) center / contain no-repeat; }
.dark .step { border-top-color: var(--inkline); }
.dark .step__mark::before { background-image: url(/assets/img/nucli-clar.svg); }
.step__n { font: 500 13px var(--f-mono); color: var(--acc); }
.step h3 { margin: 0; font: 600 24px/1.1 var(--f-title); letter-spacing: -.02em; }
.step p { margin: 0; color: var(--sub); text-wrap: pretty; }

/* Contacte */
.contact { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr)); gap: 48px 64px; align-items: start; }
.contact__text { display: flex; flex-direction: column; gap: 28px; }
.contact h2 { margin: 0; font: 600 clamp(40px, 5.5vw, 76px)/.98 var(--f-title); letter-spacing: -.04em; text-wrap: balance; }
.contact .lead { max-width: 520px; }
.form { display: flex; flex-direction: column; gap: 14px; }
.field {
  font: 400 16px var(--f-text);
  padding: 16px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 3px;
  color: var(--ink);
  outline: none;
  width: 100%;
}
.field:focus { border-color: var(--ink); }
textarea.field { resize: vertical; min-height: 140px; }
.form__row { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.form__error { font: 400 14px var(--f-text); color: var(--acc); }
.form__hp { position: absolute; left: -9999px; }
.thanks { background: var(--ink); color: var(--bg); padding: 32px; border-radius: 3px; display: flex; flex-direction: column; gap: 10px; }
.thanks strong { font: 600 24px var(--f-title); letter-spacing: -.02em; }
.thanks span { color: var(--onink); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Peu */
.footer__in { padding-top: 28px; padding-bottom: 20px; display: flex; flex-direction: column; gap: 14px; }
.footer__top { display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; flex-wrap: wrap; }
.footer .logo img { height: 28px; }
.footer__cols { display: flex; gap: 40px; flex-wrap: wrap; font: 400 14px/1.6 var(--f-text); color: var(--sub); }
.footer__cols div { display: flex; flex-direction: column; }
.footer__cols div:last-child { flex-direction: row; flex-wrap: wrap; justify-content: flex-end; column-gap: 28px; }
.footer__cols div:last-child .label { text-align: right; }
.footer__cols div:last-child .label { flex-basis: 100%; }
.footer__cols .label { font-size: 12px; letter-spacing: .14em; margin-bottom: 4px; }
.footer__cols a:hover { color: var(--acc); }
.footer__bottom {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  border-top: 1px solid var(--line); padding-top: 14px;
  font: 400 12px var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted);
}

/* 404 */
.notfound { min-height: 70vh; display: flex; flex-direction: column; justify-content: center; gap: 28px; padding-top: 72px; padding-bottom: 72px; }
.notfound h1 { margin: 0; font: 600 clamp(48px, 7vw, 96px)/.98 var(--f-title); letter-spacing: -.04em; }