/* =============================================================
   Multiservicios MC — Brutalist / Architectural minimal
   1. Tokens
   ============================================================= */
:root {
  --bg:        #f2efe9;   /* warm concrete paper */
  --bg-2:      #e9e5dd;
  --paper:     #ffffff;
  --ink:       #17150f;   /* warm near-black */
  --ink-soft:  #38342b;
  --ink-mute:  #7c7669;
  --accent:    #df531a;   /* safety / construction orange */
  --accent-2:  #b93f11;
  --on-accent: #ffffff;

  --line:        rgba(23,21,15,0.16);
  --line-2:      rgba(23,21,15,0.30);
  --line-strong: #17150f;

  --shell:  1240px;
  --gut:    clamp(1.15rem, 4vw, 2.75rem);

  --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft:  cubic-bezier(0.25, 0.46, 0.45, 0.94);

  --sans: "Inter", system-ui, -apple-system, sans-serif;
  --disp: "Archivo", "Inter", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html {
  -webkit-text-size-adjust: 100%;
  tab-size: 2;
  overflow-x: clip;
  scroll-behavior: smooth;
}
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  overscroll-behavior-y: none;
}
img, svg { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
ul, ol { list-style: none; padding: 0; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.02; letter-spacing: -0.02em; font-family: var(--disp); font-weight: 800; }
::selection { background: var(--accent); color: var(--on-accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* =============================================================
   3. Utilities
   ============================================================= */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gut);
}
.mono {
  font-family: var(--mono);
  font-weight: 500;
  letter-spacing: 0.04em;
  font-size: 0.72rem;
  text-transform: uppercase;
}
.kicker {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 1.4rem;
}
.hl { color: var(--accent); }
.skip-link {
  position: fixed; top: -100px; left: 1rem;
  padding: .6rem 1rem; background: var(--ink); color: var(--bg);
  z-index: 9999; font-weight: 600;
}
.skip-link:focus { top: 1rem; }

/* Reveal-on-scroll */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease-out), transform .8s var(--ease-out); }
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-split] { opacity: 1; transform: none; }

/* =============================================================
   4. Buttons
   ============================================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font-family: var(--disp); font-weight: 700; font-size: 0.9rem;
  letter-spacing: 0.01em;
  padding: 0.95rem 1.6rem;
  border: 1.5px solid var(--ink);
  transition: background .35s var(--ease-out), color .35s var(--ease-out), transform .35s var(--ease-out);
  will-change: transform;
}
.btn-primary { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.btn-primary:hover { background: var(--ink); border-color: var(--ink); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--bg); transform: translateY(-2px); }
.btn-block { width: 100%; }

/* =============================================================
   5. Splash
   ============================================================= */
.splash {
  position: fixed; inset: 0; z-index: 9000;
  background: var(--ink);
  display: grid; place-items: center;
  transition: clip-path .9s var(--ease-out), opacity .5s .5s;
  clip-path: inset(0 0 0 0);
  animation: splashSafety .01s 3.8s forwards;
}
.splash.is-out { clip-path: inset(0 0 100% 0); pointer-events: none; }
.splash-inner { display: flex; flex-direction: column; align-items: center; gap: 1.1rem; }
.splash-mark {
  font-family: var(--disp); font-weight: 900; font-size: clamp(3rem, 12vw, 6rem);
  color: var(--bg); letter-spacing: -0.04em; line-height: 1;
}
.splash-line { display: block; height: 2px; width: 0; background: var(--accent); animation: splashLine 1.2s .1s var(--ease-out) forwards; }
@keyframes splashLine { to { width: 120px; } }
@keyframes splashSafety { to { clip-path: inset(0 0 100% 0); opacity: 0; pointer-events: none; } }

/* =============================================================
   6. Nav
   ============================================================= */
.nav {
  position: sticky; top: 0; z-index: 800;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  transition: border-color .3s, background .3s;
}
.nav.is-scrolled { border-color: var(--line-strong); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: .7rem; }
.brand-mark {
  font-family: var(--disp); font-weight: 900; font-size: 1.05rem;
  background: var(--ink); color: var(--bg);
  width: 34px; height: 34px; display: grid; place-items: center;
  letter-spacing: -0.03em;
}
.brand-mark.big { width: 58px; height: 58px; font-size: 1.6rem; }
.brand-text { font-family: var(--disp); font-weight: 800; font-size: 1rem; letter-spacing: -0.01em; }
.brand-dim { color: var(--accent); }
.nav-links { display: none; align-items: center; gap: 2rem; }
.nav-links a { font-size: 0.9rem; font-weight: 500; position: relative; }
.nav-links a:not(.nav-cta)::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 1.5px; width: 0;
  background: var(--accent); transition: width .35s var(--ease-out);
}
.nav-links a:not(.nav-cta):hover::after { width: 100%; }
.nav-cta {
  border: 1.5px solid var(--ink); padding: .5rem 1.1rem; font-weight: 700; font-family: var(--disp);
  transition: background .3s var(--ease-out), color .3s var(--ease-out);
}
.nav-cta:hover { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }

.nav-burger { display: flex; flex-direction: column; gap: 5px; padding: 8px; }
.nav-burger span { width: 24px; height: 2px; background: var(--ink); transition: transform .3s, opacity .3s; }
.nav.is-open .nav-burger span:first-child { transform: translateY(3.5px) rotate(45deg); }
.nav.is-open .nav-burger span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

/* Mobile menu panel */
@media (max-width: 819px) {
  .nav-links {
    position: fixed; inset: 68px 0 auto 0;
    display: flex; flex-direction: column; align-items: flex-start; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--line-strong);
    padding: 0; transform: translateY(-120%); transition: transform .45s var(--ease-out);
  }
  .nav.is-open .nav-links { transform: translateY(0); }
  .nav-links a { width: 100%; padding: 1.15rem var(--gut); border-top: 1px solid var(--line); font-size: 1.1rem; font-family: var(--disp); font-weight: 700; }
  .nav-links a::after { display: none; }
  .nav-cta { border: 0; }
  .nav-cta:hover { background: var(--accent); }
}
@media (min-width: 820px) {
  .nav-links { display: flex; }
  .nav-burger { display: none; }
}

/* =============================================================
   7. Hero
   ============================================================= */
.hero { padding-top: clamp(2.5rem, 7vw, 5rem); padding-bottom: clamp(2rem, 5vw, 3.5rem); }
.hero-grid { display: grid; grid-template-columns: 1fr; gap: clamp(1.75rem, 4vw, 3rem); align-items: end; }
.hero-title {
  font-size: clamp(2.9rem, 11vw, 6.4rem);
  font-weight: 900;
  letter-spacing: -0.045em;
  line-height: 0.94;
  text-transform: uppercase;
  margin-bottom: 1.6rem;
}
.hero-sub { max-width: 46ch; color: var(--ink-soft); font-size: 1.05rem; margin-bottom: 2rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-bottom: 2.6rem; }
.hero-index {
  display: flex; flex-wrap: wrap; gap: 1.6rem;
  border-top: 1px solid var(--line-strong); padding-top: 1.1rem;
  font-family: var(--mono); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--ink-soft);
}
.hero-index span { color: var(--accent); font-weight: 700; margin-right: .4rem; }
.hero-figure { position: relative; border: 1px solid var(--line-strong); overflow: hidden; }
.hero-figure img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform 1.2s var(--ease-out); }
.hero-figure:hover img { transform: scale(1.04); }
.hero-figure figcaption {
  position: absolute; left: 0; bottom: 0;
  background: var(--ink); color: var(--bg);
  padding: .45rem .8rem; font-size: 0.66rem; letter-spacing: 0.1em;
}

@media (min-width: 900px) {
  .hero-grid { grid-template-columns: 1.15fr 0.85fr; }
  .hero-figure img { aspect-ratio: 4 / 3.6; }
}

/* =============================================================
   8. Marquee
   ============================================================= */
.marquee {
  border-block: 1px solid var(--line-strong);
  overflow: hidden; background: var(--ink); color: var(--bg);
  padding-block: .85rem;
}
.marquee-track { display: inline-flex; align-items: center; white-space: nowrap; will-change: transform; }
.marquee-track span {
  font-family: var(--disp); font-weight: 800; font-size: clamp(1.1rem, 2.4vw, 1.7rem);
  text-transform: uppercase; letter-spacing: 0.01em; padding-inline: 1.1rem;
}
.marquee-track i { color: var(--accent); font-style: normal; font-size: 1.2rem; }

/* =============================================================
   9. Section heads
   ============================================================= */
.sec-head { padding-top: clamp(3.5rem, 8vw, 6rem); margin-bottom: clamp(2rem, 4vw, 3.2rem); max-width: 60ch; }
.sec-head h2 { font-size: clamp(1.9rem, 5vw, 3.2rem); font-weight: 800; letter-spacing: -0.03em; text-transform: uppercase; }
.sec-lead { margin-top: 1.1rem; color: var(--ink-soft); font-size: 1.02rem; max-width: 52ch; }

/* =============================================================
   10. Services
   ============================================================= */
.svc-list { border-top: 1px solid var(--line-strong); }
.svc {
  display: grid; grid-template-columns: auto 1fr; gap: 1rem 1.4rem; align-items: start;
  padding: clamp(1.75rem, 4vw, 2.75rem) 0;
  border-bottom: 1px solid var(--line);
  transition: background .4s var(--ease-out), color .4s var(--ease-out), padding-inline .4s var(--ease-out);
}
.svc-num { color: var(--accent); font-weight: 700; font-size: 0.9rem; padding-top: .35rem; }
.svc-body h3 { font-size: clamp(1.6rem, 4vw, 2.4rem); font-weight: 800; text-transform: uppercase; margin-bottom: .7rem; }
.svc-body p { color: var(--ink-soft); max-width: 48ch; transition: color .4s var(--ease-out); }
.svc-tags { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.1rem; }
.svc-tags li { border: 1px solid var(--line-2); padding: .3rem .7rem; font-size: 0.64rem; color: var(--ink-mute); transition: border-color .4s, color .4s; }
.svc-fig { grid-column: 1 / -1; margin-top: .4rem; overflow: hidden; border: 1px solid var(--line); }
.svc-fig img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; filter: grayscale(0.15); transition: transform 1s var(--ease-out), filter .5s; }
.svc:hover .svc-fig img { transform: scale(1.05); filter: grayscale(0); }

/* hover invert (signature) */
@media (hover: hover) and (pointer: fine) {
  .svc[data-invert]:hover { background: var(--ink); color: var(--bg); padding-inline: clamp(1rem, 3vw, 2rem); }
  .svc[data-invert]:hover .svc-body p { color: rgba(242,239,233,0.82); }
  .svc[data-invert]:hover .svc-num { color: var(--accent); }
  .svc[data-invert]:hover .svc-tags li { border-color: rgba(242,239,233,0.35); color: rgba(242,239,233,0.75); }
}

@media (min-width: 860px) {
  .svc { grid-template-columns: 64px minmax(0, 1fr) minmax(0, 38%); gap: 1.5rem 2.5rem; align-items: center; }
  .svc-fig { grid-column: auto; margin-top: 0; }
  .svc-fig img { aspect-ratio: 4 / 3; }
}

/* =============================================================
   11. Process
   ============================================================= */
.steps {
  display: grid; grid-template-columns: 1fr; gap: 0;
  border-top: 1px solid var(--line-strong);
}
.step { padding: clamp(1.5rem, 3vw, 2.2rem) 0; border-bottom: 1px solid var(--line); }
.step-num { display: block; color: var(--accent); font-weight: 700; font-size: 0.8rem; margin-bottom: .9rem; }
.step h3 { font-size: 1.3rem; font-weight: 700; text-transform: uppercase; margin-bottom: .5rem; letter-spacing: -0.01em; }
.step p { color: var(--ink-soft); max-width: 34ch; font-size: 0.96rem; }
@media (min-width: 720px) {
  .steps { grid-template-columns: repeat(2, 1fr); column-gap: 0; }
  .step { padding-inline: 0 2.5rem; border-right: 1px solid var(--line); }
  .step:nth-child(2n) { padding-inline: 2.5rem 0; border-right: 0; }
}
@media (min-width: 1040px) {
  .steps { grid-template-columns: repeat(4, 1fr); }
  .step { padding: 2.2rem 1.8rem 2.2rem 0; border-right: 1px solid var(--line); }
  .step:nth-child(2n) { padding-inline: 0 1.8rem; }
  .step:last-child { border-right: 0; }
}

/* =============================================================
   12. Craft mosaic
   ============================================================= */
.mosaic {
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px;
  border-top: 1px solid var(--line-strong); padding-top: clamp(1.5rem, 3vw, 2.2rem);
}
.tile { position: relative; overflow: hidden; border: 1px solid var(--line); background: var(--ink); }
.tile img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; filter: grayscale(0.2); transition: transform .9s var(--ease-out), filter .5s, opacity .5s; }
.tile figcaption {
  position: absolute; left: 0; bottom: 0; z-index: 2;
  background: var(--bg); color: var(--ink); padding: .4rem .7rem;
  font-size: 0.62rem; letter-spacing: 0.08em;
  transition: background .4s, color .4s;
}
.tile:hover img { transform: scale(1.06); filter: grayscale(0); }
.tile:hover figcaption { background: var(--accent); color: var(--on-accent); }
.tile-tall { grid-row: span 2; }
.tile-tall img { aspect-ratio: auto; height: 100%; min-height: 260px; }
.tile-wide { grid-column: 1 / -1; }
@media (min-width: 760px) {
  .mosaic { grid-template-columns: repeat(4, 1fr); grid-auto-rows: 1fr; }
  .tile-tall { grid-column: span 1; grid-row: span 2; }
  .tile-wide { grid-column: span 2; grid-row: span 1; }
}

/* =============================================================
   13. Contact
   ============================================================= */
.contact { padding-bottom: clamp(3.5rem, 7vw, 6rem); }
.contact-grid {
  display: grid; grid-template-columns: 1fr; gap: clamp(2rem, 5vw, 4rem);
  border-top: 1px solid var(--line-strong); padding-top: clamp(2.5rem, 5vw, 3.5rem);
}
.contact-copy h2 { font-size: clamp(1.9rem, 5vw, 3rem); font-weight: 800; text-transform: uppercase; }
.contact-lead { margin-top: 1.1rem; color: var(--ink-soft); max-width: 42ch; }
.contact-channels { margin-top: 2.2rem; display: grid; gap: 0; }
.contact-channels li {
  display: flex; flex-wrap: wrap; gap: .3rem 1rem; align-items: baseline;
  padding: .9rem 0; border-top: 1px solid var(--line);
}
.contact-channels .ch-label { color: var(--ink-mute); min-width: 90px; }
.contact-channels a { color: var(--ink); border-bottom: 1.5px solid var(--accent); padding-bottom: 1px; transition: color .3s; }
.contact-channels a:hover { color: var(--accent); }

.contact-form { display: grid; gap: 1.1rem; align-content: start; }
.field { display: grid; gap: .45rem; }
.field label { font-family: var(--mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-mute); }
.field input, .field select, .field textarea {
  font: inherit; font-size: 0.98rem; color: var(--ink);
  background: var(--paper); border: 1.5px solid var(--line-2);
  padding: .85rem 1rem; width: 100%;
  transition: border-color .3s var(--ease-out), box-shadow .3s;
}
.field textarea { resize: vertical; min-height: 110px; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px rgba(223,83,26,0.14);
}
.field input:user-invalid, .field select:user-invalid { border-color: var(--accent-2); }
.form-note { margin-top: .2rem; color: var(--ink-mute); text-transform: none; letter-spacing: 0.02em; font-size: 0.72rem; }
.contact-form.is-ok .form-note { color: var(--accent-2); font-weight: 700; }

@media (min-width: 900px) {
  .contact-grid { grid-template-columns: 1fr 1fr; align-items: start; }
}

/* =============================================================
   14. Footer
   ============================================================= */
.footer { border-top: 1px solid var(--line-strong); padding-block: clamp(2.5rem, 5vw, 3.5rem) 1.5rem; }
.footer-grid { display: grid; gap: 2rem; grid-template-columns: 1fr; }
.footer-brand { display: flex; align-items: center; gap: 1rem; }
.footer-brand p { color: var(--ink-soft); text-transform: none; letter-spacing: 0.02em; line-height: 1.5; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 1.1rem 1.6rem; align-content: start; }
.footer-nav a { font-size: 0.9rem; font-weight: 500; position: relative; color: var(--ink-soft); transition: color .3s; }
.footer-nav a:hover { color: var(--accent); }
.footer-base {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: .8rem;
  margin-top: 2.5rem; padding-top: 1.2rem; border-top: 1px solid var(--line);
  color: var(--ink-mute); text-transform: none; letter-spacing: 0.03em;
}
.footer-credits { color: var(--ink-mute); transition: color .3s; }
.footer-credits:hover { color: var(--accent); }
@media (min-width: 760px) {
  .footer-grid { grid-template-columns: 1fr auto; align-items: center; }
}

/* =============================================================
   15. Credits page
   ============================================================= */
.page-credits { padding: 0; }
.credits-head { border-bottom: 1px solid var(--line-strong); padding-block: 1.4rem; margin-bottom: 2.5rem; }
.credits-wrap { max-width: 760px; }
.credits-wrap h1 { font-size: clamp(2rem, 6vw, 3rem); text-transform: uppercase; margin-bottom: 1rem; }
.credits-wrap > p { color: var(--ink-soft); margin-bottom: 2rem; }
.credits-list { display: grid; gap: 0; border-top: 1px solid var(--line-strong); }
.credits-list li { padding: 1rem 0; border-bottom: 1px solid var(--line); font-size: 0.9rem; color: var(--ink-soft); }
.credits-list a { color: var(--ink); border-bottom: 1px solid var(--accent); }
.credits-list a:hover { color: var(--accent); }

/* =============================================================
   16. Reduced motion — only intrusive
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none !important; transform: none !important; }
  .splash { animation-duration: .01s; }
  .splash-line { animation: none; width: 120px; }
}