/* =============================================================
   ALTIPLANO — Servicios & Construcción
   1. Tokens · 2. Reset · 3. Utilidades · 4. Tipografía
   5. Componentes · 6. Secciones · 7. Efectos · 8. Responsive
   9. Reduced motion
   ============================================================= */

/* =============================================================
   1. TOKENS
   ============================================================= */
:root {
  /* Superficies — café cálido, nunca negro puro */
  --bg:        #14100D;
  --bg-2:      #1B1512;
  --bg-3:      #241C17;
  --bg-4:      #0D0A08;

  /* Texto */
  --cream:     #F2ECE2;
  --cream-2:   #D6CBBB;
  --cream-3:   #938574;

  /* Marca */
  --accent:    #A8482F;   /* terracota */
  --accent-2:  #8A3A25;
  --brick:     #6D3223;   /* café del logo */
  --sand:      #C9A277;   /* dorado cálido secundario */

  --line:      rgba(242,236,226,.13);
  --line-2:    rgba(242,236,226,.07);

  /* Tipografías */
  --sans:  "Archivo", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --mono:  "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Ritmo */
  --gutter: clamp(1.25rem, 5vw, 4rem);
  --maxw: 1360px;
  --sec-y: clamp(5rem, 11vw, 10rem);
  --radius: 4px;

  /* Easings */
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:     cubic-bezier(0.7, 0, 0.84, 0);
  --ease-soft:   cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* =============================================================
   2. RESET & BASE
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; tab-size: 2; scroll-behavior: smooth; scroll-padding-top: 92px; }

body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.62;
  font-weight: 400;
  color: var(--cream-2);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  overscroll-behavior-y: none;
}

img, svg, video { 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 {
  font-family: var(--sans);
  font-weight: 700;
  line-height: 1.03;
  letter-spacing: -0.032em;
  color: var(--cream);
  text-wrap: balance;
}

::selection { background: var(--accent); color: var(--cream); }

:focus-visible {
  outline: 2px solid var(--sand);
  outline-offset: 3px;
  border-radius: 3px;
}

/* =============================================================
   3. UTILIDADES
   ============================================================= */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip-link {
  position: fixed; top: -100px; left: 1rem;
  padding: .7rem 1.1rem; background: var(--cream); color: var(--bg);
  z-index: 9999; border-radius: 4px; font-weight: 600; font-size: .9rem;
}
.skip-link:focus { top: 1rem; }

.kicker {
  display: flex; align-items: center; gap: .8rem;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cream-3);
  margin-bottom: 1.5rem;
}
.kicker .rule {
  display: block; width: clamp(28px, 5vw, 56px); height: 1px;
  background: var(--accent);
}
.kicker-light { color: var(--cream-2); }
.kicker .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(168,72,47,.7);
  animation: pulse 2.6s var(--ease-soft) infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(168,72,47,.65); }
  70%  { box-shadow: 0 0 0 11px rgba(168,72,47,0); }
  100% { box-shadow: 0 0 0 0 rgba(168,72,47,0); }
}

/* =============================================================
   4. TIPOGRAFÍA
   ============================================================= */
.sec-title {
  font-size: clamp(2.1rem, 5.6vw, 4.4rem);
  font-weight: 700;
  letter-spacing: -0.038em;
}
.sec-title em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.012em;
  color: var(--sand);
}

.lead {
  font-size: clamp(1.05rem, 1.9vw, 1.28rem);
  line-height: 1.55;
  color: var(--cream-2);
}

.sec-head { margin-bottom: clamp(2.5rem, 5vw, 4.5rem); }
.sec-title + .lead,
.sec-title + p,
.page-title + .lead { margin-top: clamp(1.1rem, 2vw, 1.6rem); }
.sec-head-row { display: grid; gap: 2rem; align-items: end; }
.sec-aside {
  color: var(--cream-3);
  font-size: 1rem;
  max-width: 42ch;
  border-left: 1px solid var(--line);
  padding-left: 1.4rem;
}

.link-arrow {
  display: inline-flex; align-items: center; gap: .6rem;
  margin-top: 2rem;
  font-weight: 600;
  color: var(--cream);
  border-bottom: 1px solid var(--line);
  padding-bottom: .35rem;
  transition: gap .4s var(--ease-out), border-color .4s var(--ease-out), color .4s var(--ease-out);
}
.link-arrow:hover { gap: 1rem; color: var(--sand); border-color: var(--sand); }

/* =============================================================
   5. COMPONENTES
   ============================================================= */

/* --- Botones --- */
.btn {
  --btn-bg: transparent;
  --btn-fg: var(--cream);
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  padding: .82rem 1.5rem;
  border-radius: 2px;
  font-weight: 600;
  font-size: .95rem;
  letter-spacing: -0.008em;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid transparent;
  position: relative;
  will-change: transform;
  transition: transform .45s var(--ease-out), background-color .35s var(--ease-out),
              color .35s var(--ease-out), border-color .35s var(--ease-out),
              box-shadow .45s var(--ease-out);
}
.btn-lg { padding: 1.05rem 1.9rem; font-size: 1rem; }
.btn-sm { padding: .6rem 1.05rem; font-size: .85rem; }
.btn-block { width: 100%; }

.btn-primary { --btn-bg: var(--accent); --btn-fg: #FFF6EF; }
.btn-primary:hover {
  --btn-bg: var(--accent-2);
  transform: translateY(-3px);
  box-shadow: 0 14px 34px -12px rgba(168,72,47,.75);
}
.btn-ghost {
  --btn-fg: var(--cream);
  border-color: rgba(242,236,226,.28);
  backdrop-filter: blur(6px);
  background: rgba(20,16,13,.25);
}
.btn-ghost:hover { border-color: var(--cream); transform: translateY(-3px); background: rgba(242,236,226,.08); }

.btn-outline {
  --btn-fg: var(--cream);
  border-color: var(--line);
  margin-top: clamp(2.5rem, 4vw, 3.5rem);
}
.btn-outline:hover { border-color: var(--sand); color: var(--sand); transform: translateY(-3px); }
.btn-outline svg { transition: transform .45s var(--ease-out); }
.btn-outline:hover svg { transform: translateX(5px); }

.btn:active { transform: translateY(-1px) scale(.99); }

/* --- Navegación --- */
.nav {
  position: fixed; inset: 0 0 auto 0;
  z-index: 900;
  transition: background-color .5s var(--ease-out), border-color .5s var(--ease-out),
              backdrop-filter .5s var(--ease-out), padding .5s var(--ease-out);
  border-bottom: 1px solid transparent;
  padding-block: .55rem;
}
.nav.is-stuck {
  background: rgba(13,10,8,.86);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line-2);
}
@supports not (backdrop-filter: blur(4px)) {
  .nav.is-stuck { background: rgba(13,10,8,.97); }
}
.nav-inner {
  max-width: var(--maxw); margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
  min-height: 62px;
}
.nav-brand, .brand-lg {
  display: flex; align-items: center; gap: .7rem;
}
.nav-brand img { width: auto; height: 34px; transition: height .5s var(--ease-out); }
.nav.is-stuck .nav-brand img { height: 29px; }
.brand-txt { display: grid; gap: .12rem; line-height: 1; }
.brand-txt b {
  font-weight: 700; font-size: .95rem; letter-spacing: .19em;
  color: var(--cream);
}
.brand-txt i {
  font-family: var(--mono); font-style: normal;
  font-size: .53rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--cream-3);
}
.nav.is-stuck .brand-txt b { font-size: .9rem; }

.nav-links { display: none; gap: 2rem; }
.nav-links a {
  position: relative;
  font-size: .92rem;
  font-weight: 500;
  color: var(--cream-2);
  padding-block: .3rem;
  transition: color .3s var(--ease-out);
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 100%; height: 1px; background: var(--sand);
  transform: scaleX(0); transform-origin: right;
  transition: transform .45s var(--ease-out);
}
.nav-links a:hover { color: var(--cream); }
.nav-links a:hover::after { transform: scaleX(1); transform-origin: left; }

.nav-actions { display: flex; align-items: center; gap: .7rem; }
.nav-actions .btn-primary { display: none; }

.nav-progress {
  position: absolute; left: 0; bottom: -1px; height: 2px;
  width: 100%; transform: scaleX(0); transform-origin: left;
  background: linear-gradient(90deg, var(--accent), var(--sand));
}

/* Burger */
.nav-burger {
  width: 42px; height: 42px;
  display: grid; place-content: center; gap: 6px;
  border: 1px solid var(--line); border-radius: 2px;
}
.nav-burger span {
  display: block; width: 18px; height: 1.5px; background: var(--cream);
  transition: transform .45s var(--ease-out), opacity .3s var(--ease-out);
}
.nav-burger[aria-expanded="true"] span:first-child { transform: translateY(3.75px) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:last-child { transform: translateY(-3.75px) rotate(-45deg); }

/* Menú móvil */
.menu {
  position: fixed; inset: 0; z-index: 890;
  background: var(--bg-4);
  padding: 7rem var(--gutter) 3rem;
  display: flex; flex-direction: column; justify-content: space-between;
  clip-path: inset(0 0 100% 0);
  transition: clip-path .7s var(--ease-out);
  pointer-events: none;
  visibility: hidden;
}
.menu.is-open { clip-path: inset(0 0 0 0); pointer-events: auto; visibility: visible; }
.menu-links { display: flex; flex-direction: column; gap: .35rem; }
.menu-links a {
  display: flex; align-items: baseline; gap: 1rem;
  font-size: clamp(1.6rem, 8vw, 2.4rem);
  font-weight: 700; letter-spacing: -0.035em;
  color: var(--cream);
  padding-block: .45rem;
  border-bottom: 1px solid var(--line-2);
  opacity: 0; transform: translateY(18px);
  transition: opacity .6s var(--ease-out), transform .6s var(--ease-out), color .3s var(--ease-out);
}
.menu.is-open .menu-links a { opacity: 1; transform: none; }
.menu-links a i {
  font-family: var(--mono); font-style: normal;
  font-size: .7rem; color: var(--accent); letter-spacing: .1em;
}
.menu-links a:hover { color: var(--sand); }
.menu-foot { display: flex; flex-direction: column; gap: .4rem; font-family: var(--mono); font-size: .85rem; color: var(--cream-3); }
.menu-foot a:hover { color: var(--sand); }

/* --- Tarjetas de servicio --- */
.cards {
  display: grid; gap: 1px;
  background: var(--line-2);
  border: 1px solid var(--line-2);
}
.card {
  position: relative;
  background: var(--bg-2);
  padding: clamp(1.8rem, 3.2vw, 2.7rem);
  overflow: hidden;
  isolation: isolate;
  transform-style: preserve-3d;
  transition: background-color .5s var(--ease-out);
}
.card:hover { background: var(--bg-3); }
.card-halo {
  position: absolute; inset: -40%;
  background: radial-gradient(340px circle at var(--mx, 50%) var(--my, 50%), rgba(168,72,47,.22), transparent 65%);
  opacity: 0; transition: opacity .5s var(--ease-out);
  pointer-events: none; z-index: -1;
}
.card:hover .card-halo { opacity: 1; }
.card-media {
  margin: 0 0 1.6rem; overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line-2);
  background: var(--bg-3);
}
.card-media img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 1.1s var(--ease-out), filter .8s var(--ease-out);
  filter: saturate(.92);
}
.card:hover .card-media img { transform: scale(1.06); filter: saturate(1.12); }
.card-n {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .16em;
  color: var(--accent); display: block; margin-bottom: .9rem;
}
.card h3 {
  font-size: clamp(1.35rem, 2.4vw, 1.7rem);
  margin-bottom: .8rem;
}
.card p { font-size: .96rem; color: var(--cream-3); }
.card-tags {
  display: flex; flex-wrap: wrap; gap: .4rem;
  margin-top: 1.6rem; padding-top: 1.3rem;
  border-top: 1px solid var(--line-2);
}
.card-tags li {
  font-family: var(--mono); font-size: .68rem; letter-spacing: .06em;
  color: var(--cream-3);
  border: 1px solid var(--line-2);
  padding: .28rem .6rem; border-radius: 999px;
}

/* --- Formulario --- */
.form {
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  padding: clamp(1.5rem, 4vw, 2.6rem);
  display: flex; flex-direction: column; gap: 1.1rem;
}
.field { display: flex; flex-direction: column; gap: .5rem; }
.field label {
  font-family: var(--mono); font-size: .7rem; letter-spacing: .13em;
  text-transform: uppercase; color: var(--cream-3);
}
.field input, .field textarea, .field select {
  font: inherit; font-size: .98rem;
  color: var(--cream);
  background: var(--bg);
  border: 1px solid var(--line-2);
  border-radius: 2px;
  padding: .82rem .95rem;
  width: 100%;
  transition: border-color .35s var(--ease-out), background-color .35s var(--ease-out);
}
.field textarea { resize: vertical; min-height: 110px; line-height: 1.55; }
.field input::placeholder, .field textarea::placeholder { color: #6C6053; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--accent); background: var(--bg-3);
}
.field input[aria-invalid="true"], .field select[aria-invalid="true"] { border-color: #C4543A; }

.select-wrap { position: relative; }
.select-wrap select { appearance: none; padding-right: 2.6rem; cursor: pointer; }
.select-wrap svg {
  position: absolute; right: .95rem; top: 50%; transform: translateY(-50%);
  color: var(--cream-3); pointer-events: none;
}
.select-wrap select option { background: var(--bg-2); color: var(--cream); }

.form-note {
  font-size: .82rem; color: var(--cream-3); text-align: center; line-height: 1.5;
}
.form-note.is-error { color: #E08A70; }
.form-note.is-ok { color: var(--sand); }

.btn-spin {
  width: 15px; height: 15px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,.35); border-top-color: #fff;
  display: none;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
[data-submit].is-sending .btn-label { opacity: .5; }
[data-submit].is-sending .btn-spin { display: block; }

/* =============================================================
   6. SECCIONES
   ============================================================= */
.section { padding-block: var(--sec-y); position: relative; }

/* --- SPLASH --- */
.splash {
  position: fixed; inset: 0; z-index: 9998;
  background: var(--bg-4);
  display: grid; place-items: center;
  /* Seguridad: se oculta sola a los 4.5s aunque el JS falle */
  animation: splashSafety .01s 4.5s forwards;
}
.splash-inner { display: grid; justify-items: center; gap: 1.6rem; }
.splash-logo {
  width: clamp(150px, 34vw, 230px); height: auto;
  animation: splashIn 1s var(--ease-out) both;
}
.splash-bar {
  display: block; width: clamp(120px, 28vw, 180px); height: 1px;
  background: var(--line); overflow: hidden;
}
.splash-bar i {
  display: block; height: 100%; width: 100%;
  background: var(--accent);
  transform-origin: left; transform: scaleX(0);
  animation: splashBar 1.5s var(--ease-soft) .15s forwards;
}
@keyframes splashIn { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@keyframes splashBar { to { transform: scaleX(1); } }
@keyframes splashSafety { to { opacity: 0; pointer-events: none; clip-path: inset(0 0 100% 0); } }
.splash.is-out {
  opacity: 0; pointer-events: none;
  clip-path: inset(0 0 100% 0);
  transition: clip-path .9s var(--ease-out), opacity .7s var(--ease-out) .15s;
}

/* --- HERO --- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 7rem 0 clamp(2rem, 6vw, 4rem);
  overflow: hidden;
  isolation: isolate;
}
.hero-bg { position: absolute; inset: 0; z-index: -3; }
.hero-bg img {
  width: 100%; height: 100%; object-fit: cover; object-position: center 42%;
  filter: saturate(.9) contrast(1.06);
  transform: scale(1.06);
  will-change: transform;
}
.hero-tint {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(13,10,8,.82) 0%, rgba(13,10,8,.42) 32%, rgba(13,10,8,.88) 76%, var(--bg) 100%),
    linear-gradient(100deg, rgba(109,50,35,.32), transparent 62%);
}
.hero-grid { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; }
.hg-lines line {
  stroke: rgba(242,236,226,.16); stroke-width: 1;
  stroke-dasharray: 1000; stroke-dashoffset: 1000;
  animation: drawLine 2.4s var(--ease-out) forwards;
}
.hg-lines line:nth-child(2) { animation-delay: .12s; }
.hg-lines line:nth-child(3) { animation-delay: .24s; }
.hg-lines line:nth-child(4) { animation-delay: .36s; }
.hg-lines line:nth-child(5) { animation-delay: .48s; }
.hg-lines line:nth-child(6) { animation-delay: .6s; }
@keyframes drawLine { to { stroke-dashoffset: 0; } }
.hg-marks circle {
  fill: var(--accent); opacity: 0;
  animation: markIn .8s var(--ease-out) 1.6s forwards;
}
@keyframes markIn { to { opacity: .85; } }

.hero-grain {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  opacity: .35; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.42'/%3E%3C/svg%3E");
}

.hero-inner {
  max-width: var(--maxw); margin-inline: auto; width: 100%;
  padding-inline: var(--gutter);
}
.hero-title {
  font-size: clamp(3rem, 10.5vw, 8.2rem);
  font-weight: 800;
  letter-spacing: -0.052em;
  line-height: .93;
  margin-bottom: 1.6rem;
}
.hero-title em {
  font-family: var(--serif); font-style: italic; font-weight: 400;
  letter-spacing: -0.018em;
  color: var(--sand);
}
.hero-lead {
  max-width: 54ch;
  font-size: clamp(1rem, 1.75vw, 1.22rem);
  color: var(--cream-2);
  line-height: 1.58;
}
.hero-actions {
  display: flex; flex-wrap: wrap; gap: .7rem;
  margin-top: clamp(1.8rem, 4vw, 2.3rem);
}
.hero-actions .btn, .page-actions .btn { flex: 1 1 auto; }
.hero-stats {
  display: grid; grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 1.2rem .8rem;
  margin-top: clamp(2rem, 6vw, 4.5rem);
  padding-top: clamp(1.4rem, 3vw, 2rem);
  border-top: 1px solid var(--line);
}
.hero-stats dt {
  font-size: clamp(1.55rem, 6vw, 2.9rem);
  font-weight: 700; letter-spacing: -0.04em; color: var(--cream);
  line-height: 1; display: flex; align-items: baseline;
}
.hero-stats dt i { font-style: normal; color: var(--accent); }
.hero-stats dd {
  font-family: var(--mono); font-size: .6rem; letter-spacing: .08em;
  line-height: 1.4;
  text-transform: uppercase; color: var(--cream-3); margin-top: .5rem;
}

.hero-scroll {
  position: absolute; right: var(--gutter); bottom: 2rem;
  display: none; align-items: center; gap: .6rem;
  font-family: var(--mono); font-size: .65rem; letter-spacing: .2em;
  text-transform: uppercase; color: var(--cream-3);
  writing-mode: vertical-rl;
}
.hero-scroll i {
  display: block; width: 1px; height: 46px;
  background: linear-gradient(var(--accent), transparent);
  animation: scrollHint 2.4s var(--ease-soft) infinite;
}
@keyframes scrollHint { 0%,100% { transform: scaleY(.3); opacity: .4; } 50% { transform: scaleY(1); opacity: 1; } }

/* --- MARQUEE --- */
.marquee {
  background: var(--accent);
  border-block: 1px solid rgba(0,0,0,.18);
  padding-block: .95rem;
  overflow: hidden;
}
.marquee-track {
  display: flex; width: max-content;
}
.marquee-track.is-live { animation: marquee 46s linear infinite; }
.marquee-track span {
  font-family: var(--mono);
  font-size: .78rem; letter-spacing: .22em; text-transform: uppercase;
  color: #FBEFE7; white-space: nowrap; padding-right: 1.2rem;
}
.marquee-track b { color: rgba(251,239,231,.5); padding-inline: .3rem; font-weight: 400; }
@keyframes marquee { to { transform: translateX(-50%); } }
.marquee:hover .marquee-track { animation-play-state: paused; }

/* --- EMPRESA --- */
.section-empresa { background: var(--bg); }
.empresa-grid { display: grid; gap: clamp(2.5rem, 6vw, 5rem); }
.empresa-text p + p { margin-top: 1.2rem; }
.empresa-text p:not(.lead) { color: var(--cream-3); }

.pillars { display: grid; gap: 1px; background: var(--line-2); border-block: 1px solid var(--line-2); }
.pillar { background: var(--bg); padding: 1.7rem 0; }
.pillar-n {
  font-family: var(--mono); font-size: .68rem; letter-spacing: .16em;
  color: var(--accent); display: block; margin-bottom: .7rem;
}
.pillar h3 { font-size: 1.15rem; margin-bottom: .45rem; letter-spacing: -0.02em; }
.pillar p { font-size: .93rem; color: var(--cream-3); }

/* --- SERVICIOS --- */
.section-servicios { background: var(--bg-2); }
.section-servicios .card { background: var(--bg); }
.section-servicios .card:hover { background: var(--bg-3); }
.section-servicios .cards { background: var(--line-2); border-color: var(--line-2); }
.section-servicios .btn-outline { display: inline-flex; }

/* --- PROYECTOS --- */
.section-proyectos { background: var(--bg); }
.proyectos-grid { display: grid; gap: clamp(1.6rem, 3vw, 2.4rem); }
.proy { margin: 0; }
.proy-img {
  overflow: hidden; background: var(--bg-3);
  border: 1px solid var(--line-2);
}
.proy-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 1.1s var(--ease-out), filter .8s var(--ease-out);
  filter: saturate(.92);
}
.proy:hover .proy-img img { transform: scale(1.045); filter: saturate(1.08); }
.proy figcaption { padding-top: 1.15rem; }
.proy-meta {
  font-family: var(--mono); font-size: .68rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--accent); margin-bottom: .5rem;
}
.proy h3 { font-size: clamp(1.15rem, 2vw, 1.45rem); margin-bottom: .45rem; }
.proy-text { font-size: .93rem; color: var(--cream-3); max-width: 52ch; }
.proy-lg .proy-img { aspect-ratio: 16 / 10; }
.proy-wide .proy-img { aspect-ratio: 16 / 10; }
.proy:not(.proy-lg):not(.proy-wide) .proy-img { aspect-ratio: 4 / 5; }

.proy-note {
  margin-top: clamp(2rem, 4vw, 3rem);
  font-family: var(--mono); font-size: .8rem; letter-spacing: .06em;
  color: var(--cream-3);
}
.proy-note a { color: var(--sand); border-bottom: 1px solid rgba(201,162,119,.35); }
.proy-note a:hover { border-color: var(--sand); }

/* --- PROCESO --- */
.section-proceso { background: var(--bg-2); }
.proceso-wrap { display: grid; gap: clamp(2.5rem, 6vw, 4rem); }
.proceso-sticky .btn { margin-top: 2rem; }
.proceso-aside { color: var(--cream-3); margin-top: 1.4rem; max-width: 38ch; }

.steps { display: grid; gap: 1px; background: var(--line-2); border-block: 1px solid var(--line-2); }
.step {
  background: var(--bg-2);
  display: grid; grid-template-columns: auto 1fr; gap: 1.3rem;
  padding: 1.9rem 0;
  transition: background-color .5s var(--ease-out);
}
.step:hover { background: var(--bg-3); }
.step-n {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .16em;
  color: var(--accent); padding-top: .35rem;
}
.step h3 { font-size: clamp(1.15rem, 2.2vw, 1.5rem); margin-bottom: .5rem; }
.step p { font-size: .95rem; color: var(--cream-3); max-width: 58ch; }

/* --- COBERTURA --- */
.section-cobertura { background: var(--bg); }
.cobertura-inner { display: grid; gap: clamp(2.5rem, 5vw, 4rem); }
.comunas { display: flex; flex-wrap: wrap; gap: .55rem; align-content: flex-start; }
.comunas li {
  font-family: var(--mono); font-size: .78rem; letter-spacing: .06em;
  color: var(--cream-2);
  border: 1px solid var(--line);
  padding: .55rem 1rem; border-radius: 999px;
  transition: border-color .4s var(--ease-out), color .4s var(--ease-out),
              background-color .4s var(--ease-out), transform .4s var(--ease-out);
}
.comunas li:hover {
  border-color: var(--accent); color: var(--cream);
  background: rgba(168,72,47,.12); transform: translateY(-2px);
}

/* --- COTIZAR --- */
.section-cotizar { background: var(--bg-2); }
.cotizar-inner { display: grid; gap: clamp(2.5rem, 5vw, 4rem); align-items: start; }
.cotizar-direct { margin-top: 2.5rem; display: grid; gap: 1px; background: var(--line-2); border-block: 1px solid var(--line-2); }
.cotizar-direct li {
  background: var(--bg-2);
  padding: 1.05rem 0;
  display: grid; gap: .25rem;
}
.cotizar-direct span {
  font-family: var(--mono); font-size: .66rem; letter-spacing: .16em;
  text-transform: uppercase; color: var(--cream-3);
}
.cotizar-direct a {
  font-size: 1.02rem; font-weight: 600; color: var(--cream);
  transition: color .3s var(--ease-out);
}
.cotizar-direct a:hover { color: var(--sand); }

/* --- FOOTER --- */
.footer { background: var(--bg-4); padding-block: clamp(3.5rem, 7vw, 5.5rem) 2rem; border-top: 1px solid var(--line-2); }
.footer-top { display: grid; gap: 2.5rem; padding-bottom: 3rem; border-bottom: 1px solid var(--line-2); }
.footer-brand .brand-lg { margin-bottom: 1.3rem; gap: .85rem; }
.footer-brand img { height: 42px; width: auto; }
.footer-brand .brand-txt b { font-size: 1.1rem; letter-spacing: .2em; }
.footer-brand .brand-txt i { font-size: .58rem; }
.footer-brand p { font-size: .92rem; color: var(--cream-3); max-width: 38ch; }
.footer-col { display: flex; flex-direction: column; gap: .55rem; }
.footer-col h4 {
  font-family: var(--mono); font-size: .68rem; letter-spacing: .16em;
  text-transform: uppercase; color: var(--accent);
  font-weight: 500; margin-bottom: .5rem;
}
.footer-col a { font-size: .93rem; color: var(--cream-3); transition: color .3s var(--ease-out); }
.footer-col a:hover { color: var(--cream); }
.footer-bottom {
  display: flex; flex-wrap: wrap; gap: .6rem; justify-content: space-between;
  padding-top: 1.8rem;
  font-family: var(--mono); font-size: .7rem; letter-spacing: .08em;
  color: #6C6053;
}

/* --- WhatsApp flotante --- */
.wa-float {
  position: fixed; right: 1.1rem; bottom: 1.1rem; z-index: 880;
  width: 54px; height: 54px; border-radius: 50%;
  display: grid; place-items: center;
  background: #1FA855; color: #fff;
  box-shadow: 0 12px 30px -8px rgba(0,0,0,.65);
  opacity: 0; transform: translateY(16px) scale(.85);
  pointer-events: none;
  transition: opacity .5s var(--ease-out), transform .5s var(--ease-bounce), background-color .3s var(--ease-out);
}
.wa-float.is-in { opacity: 1; transform: none; pointer-events: auto; }
.wa-float:hover { background: #17914A; transform: translateY(-3px); }

/* =============================================================
   7. EFECTOS
   ============================================================= */
.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity .95s var(--ease-out), transform .95s var(--ease-out);
}
.reveal.is-revealed { opacity: 1; transform: none; }

/* Defensa: si un .reveal lleva data-split, nunca queda invisible */
.reveal[data-split] { opacity: 1; transform: none; }

/* Si el JS no corre, todo visible igual */
.no-js .reveal { opacity: 1; transform: none; }

/* Escalonado dentro de grupos */
.cards .reveal:nth-child(2), .pillars .reveal:nth-child(2),
.steps .reveal:nth-child(2), .proyectos-grid .reveal:nth-child(2) { transition-delay: .09s; }
.cards .reveal:nth-child(3), .pillars .reveal:nth-child(3),
.steps .reveal:nth-child(3), .proyectos-grid .reveal:nth-child(3) { transition-delay: .18s; }
.cards .reveal:nth-child(4), .pillars .reveal:nth-child(4),
.steps .reveal:nth-child(4), .proyectos-grid .reveal:nth-child(4) { transition-delay: .27s; }

/* =============================================================
   8. RESPONSIVE
   ============================================================= */
@media (min-width: 540px) {
  .hero-actions .btn, .page-actions .btn { flex: 0 0 auto; }
  .hero-stats { gap: 1.4rem 1rem; }
  .hero-stats dd { font-size: .7rem; letter-spacing: .1em; }
  .footer-bottom { font-size: .72rem; }
}

@media (min-width: 720px) {
  .cards { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .pillars { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .pillar { padding: 1.9rem clamp(1.2rem, 2.5vw, 2rem); }
  .pillar:nth-child(odd) { padding-left: 0; }
  .footer-top { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .proyectos-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .proy-lg, .proy-wide { grid-column: 1 / -1; }
  .sec-head-row { grid-template-columns: 1.5fr 1fr; }
  .step { grid-template-columns: auto 1fr; padding: 2.1rem clamp(1.2rem, 2.5vw, 2rem) 2.1rem 0; }
}

@media (min-width: 960px) {
  html { scroll-padding-top: 104px; }
  .nav-links { display: flex; }
  .nav-actions .btn-primary { display: inline-flex; }
  .nav-burger { display: none; }
  .menu { display: none; }
  .hero-scroll { display: flex; }

  .empresa-grid { grid-template-columns: 1.15fr 1fr; align-items: start; }
  .cards { grid-template-columns: repeat(4, minmax(0,1fr)); }
  .pillars { grid-template-columns: 1fr; border-block: none; background: transparent; gap: 0; }
  .pillar,
  .pillar:nth-child(odd) {
    border-bottom: 1px solid var(--line-2);
    border-left: 1px solid var(--line-2);
    padding: 1.6rem 0 1.6rem 1.8rem;
  }
  .pillar:first-child { border-top: 1px solid var(--line-2); }

  .proyectos-grid { grid-template-columns: repeat(12, 1fr); }
  .proy-lg { grid-column: 1 / 9; }
  .proy:nth-child(2) { grid-column: 9 / 13; align-self: end; }
  .proy:nth-child(3) { grid-column: 1 / 5; }
  .proy-wide { grid-column: 5 / 13; }

  .proceso-wrap { grid-template-columns: .85fr 1.15fr; gap: clamp(3rem, 6vw, 6rem); }
  .proceso-sticky { position: sticky; top: 120px; align-self: start; }

  .cobertura-inner { grid-template-columns: 1fr 1fr; align-items: center; }
  .cotizar-inner { grid-template-columns: .9fr 1.1fr; }
  .cotizar-copy { position: sticky; top: 120px; align-self: start; }

  .footer-top { grid-template-columns: 1.6fr 1fr 1.2fr 1fr; }
  .footer-brand { grid-column: auto; }

  .wa-float { display: none; }
}

@media (min-width: 1280px) {
  .hero-title { letter-spacing: -0.055em; }
  .card { padding: 2rem 2rem 2.4rem; }
}

/* =============================================================
   9. REDUCED MOTION — solo lo intrusivo
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; }
  .hero-scroll i { animation: none; }
  .kicker .dot { animation: none; }
  .hg-lines line { animation: none; stroke-dashoffset: 0; }
  .hg-marks circle { animation: none; opacity: .85; }
  .hero-bg img { transform: none; }
}

/* =============================================================
   10. PÁGINA DE SERVICIOS
   ============================================================= */
.page-hero {
  padding: clamp(8rem, 16vw, 12rem) 0 clamp(3rem, 6vw, 5rem);
  background:
    radial-gradient(120% 90% at 15% 0%, rgba(109,50,35,.42), transparent 62%),
    var(--bg);
  border-bottom: 1px solid var(--line-2);
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: "";
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(to right, var(--line-2) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-2) 1px, transparent 1px);
  background-size: clamp(70px, 12vw, 130px) clamp(70px, 12vw, 130px);
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.55), transparent 78%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,.55), transparent 78%);
}
.page-hero .wrap { position: relative; z-index: 1; }

.crumbs {
  display: flex; align-items: center; gap: .55rem;
  font-family: var(--mono); font-size: .7rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--cream-3);
  margin-bottom: 2.2rem;
}
.crumbs a { transition: color .3s var(--ease-out); }
.crumbs a:hover { color: var(--sand); }
.crumbs span[aria-current] { color: var(--cream); }

.page-title {
  font-size: clamp(2.4rem, 7.5vw, 5.6rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: .96;
  margin-bottom: 1.5rem;
}
.page-title em {
  font-family: var(--serif); font-style: italic; font-weight: 400;
  letter-spacing: -0.018em; color: var(--sand);
}
.page-lead { max-width: 56ch; }
.page-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2.2rem; }

.section-srv { background: var(--bg); padding-top: clamp(3rem, 7vw, 5rem); }
.srv-wrap { display: grid; gap: clamp(2.5rem, 5vw, 4rem); align-items: start; }

.srv-index { display: none; }
.srv-index-title {
  font-family: var(--mono); font-size: .68rem; letter-spacing: .16em;
  text-transform: uppercase; color: var(--accent);
  padding-bottom: 1rem; margin-bottom: .4rem;
  border-bottom: 1px solid var(--line-2);
}
.srv-index ol { display: grid; }
.srv-index a {
  display: grid; grid-template-columns: 2.1rem 1fr; align-items: baseline;
  gap: .3rem;
  font-size: .87rem; color: var(--cream-3);
  padding: .52rem 0;
  border-bottom: 1px solid var(--line-2);
  transition: color .3s var(--ease-out), padding-left .4s var(--ease-out);
}
.srv-index a i {
  font-family: var(--mono); font-style: normal;
  font-size: .66rem; letter-spacing: .1em; color: var(--accent);
}
.srv-index a:hover { color: var(--cream); padding-left: .4rem; }

.srv-list { display: grid; gap: 1px; background: var(--line-2); border-block: 1px solid var(--line-2); }
.srv {
  background: var(--bg);
  padding: clamp(2rem, 4vw, 3.2rem) 0;
  display: grid; gap: 1.4rem;
  scroll-margin-top: 110px;
  transition: background-color .5s var(--ease-out);
}
.srv:hover { background: var(--bg-2); }
.srv-head { display: grid; gap: .5rem; }
.srv-n {
  font-family: var(--mono); font-size: .7rem; letter-spacing: .16em;
  color: var(--accent);
}
.srv h2 { font-size: clamp(1.45rem, 3.2vw, 2.15rem); letter-spacing: -0.035em; }
.srv-lead {
  font-family: var(--serif); font-style: italic;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: var(--sand); line-height: 1.35;
}
.srv-body { display: grid; gap: 1.4rem; }
.srv-copy { display: grid; gap: 1.4rem; align-content: start; }
.srv-copy > p { color: var(--cream-3); font-size: .98rem; max-width: 62ch; }

.srv-media {
  margin: 0; overflow: hidden;
  border: 1px solid var(--line-2);
  background: var(--bg-3);
  aspect-ratio: 16 / 10;
}
.srv-media img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 1.1s var(--ease-out), filter .8s var(--ease-out);
  filter: saturate(.95);
}
.srv:hover .srv-media img { transform: scale(1.045); filter: saturate(1.1); }
.srv-items { display: grid; gap: .1rem; align-content: start; }
.srv-items li {
  position: relative;
  padding: .42rem 0 .42rem 1.5rem;
  font-size: .92rem; color: var(--cream-2);
  border-bottom: 1px solid var(--line-2);
}
.srv-items li::before {
  content: ""; position: absolute; left: 0; top: 1.05rem;
  width: 8px; height: 1px; background: var(--accent);
}
.srv-items li:last-child { border-bottom: 0; }

.section-cta {
  background: var(--bg-2);
  border-top: 1px solid var(--line-2);
  text-align: center;
}
.cta-inner { display: grid; justify-items: center; }
.cta-inner .kicker { justify-content: center; }
.cta-inner .lead { max-width: 52ch; margin-top: 1.3rem; }
.cta-inner .page-actions { justify-content: center; margin-top: 2.4rem; }

@media (min-width: 720px) {
  .srv { grid-template-columns: 1fr; padding-inline: clamp(1.2rem, 2.5vw, 2rem) 0; padding-left: 0; }
  .srv-body { grid-template-columns: .85fr 1.15fr; gap: clamp(1.5rem, 3vw, 2.6rem); align-items: start; }
}

@media (min-width: 960px) {
  .srv-wrap { grid-template-columns: 250px 1fr; gap: clamp(3rem, 5vw, 5rem); }
  .srv-index { display: block; position: sticky; top: 118px; }
  .srv-head { grid-template-columns: 3.5rem 1fr; align-items: baseline; }
  .srv-n { grid-row: 1 / span 2; padding-top: .55rem; }
  .srv-head h2, .srv-head .srv-lead { grid-column: 2; }
  .srv-body { padding-left: 3.5rem; }
}

@media (min-width: 1280px) {
  .srv-wrap { grid-template-columns: 280px 1fr; }
}