/* ============================================================
   CONSTRUTECH — Blueprint sostenible (verde bosque + concreto)
   Paleta ajustada al logo real (verde bosque + verde claro)
   ============================================================ */

:root {
  --concrete: #f2efe2;      /* marfil concreto (fondo) */
  --concrete-2: #e5e0cf;
  --concrete-3: #d1cbb7;
  --paper-w: #faf8f0;
  --ink: #1c3524;           /* verde muy oscuro (casi negro) */
  --ink-2: #365941;
  --ink-3: #647668;
  --navy: #2e5a3d;          /* verde bosque principal (del logo) */
  --navy-deep: #1c3524;
  --steel: #7cb98a;         /* verde claro (del logo, columnas) */
  --steel-soft: #a5d3ae;
  --blue: #4a9d5f;          /* verde acento medio (el "TECH" del logo) */
  --line: rgba(28,53,36,0.14);
  --line-soft: rgba(28,53,36,0.06);

  --pad: clamp(1.2rem, 4vw, 4rem);
  --maxw: 1280px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { overflow-x: clip; scroll-behavior: smooth; }
body {
  background: var(--concrete);
  color: var(--ink);
  font-family: "Archivo", system-ui, -apple-system, sans-serif;
  font-weight: 400; line-height: 1.55;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }

/* SPLASH — rejilla blueprint sobre fondo claro para lucir el logo real */
.splash {
  position: fixed; inset: 0; z-index: 999;
  background: var(--paper-w);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  transition: opacity .7s var(--ease), clip-path .8s var(--ease);
  animation: splashSafety .01s 4.5s forwards;
}
.splash.is-out { opacity: 0; pointer-events: none; clip-path: inset(0 0 100% 0); }
@keyframes splashSafety { to { opacity: 0; pointer-events: none; } }
.splash-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(30,55,106,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,55,106,0.06) 1px, transparent 1px);
  background-size: 44px 44px;
}
.splash-logo {
  width: clamp(180px, 32vw, 300px); height: auto;
  z-index: 1;
  animation: fadeUp .8s var(--ease) both;
}
.splash-tag {
  z-index: 1; margin-top: 1.4rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.85rem; letter-spacing: 0.10em;
  color: var(--navy);
  animation: fadeUp .8s var(--ease) .15s both;
}
@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* NAV */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem var(--pad);
  background: transparent;
  transition: background .3s var(--ease), padding .25s var(--ease), border-color .3s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(238,236,218,0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom-color: var(--line);
  padding-block: 0.7rem;
}
.nav-brand {
  display: inline-flex; align-items: center; gap: 0.7rem;
  color: var(--ink);
}
.nav-logo { height: 44px; width: auto; transition: height .3s var(--ease); }
.nav.is-scrolled .nav-logo { height: 36px; }
.nav-name {
  font-family: "Archivo Narrow", sans-serif;
  font-weight: 700; letter-spacing: 0.16em; font-size: 1.05rem;
  color: var(--ink);
}
.nav-links { display: flex; align-items: center; gap: clamp(1rem, 2.2vw, 2rem); }
.nav-links a {
  font-size: 0.9rem; font-weight: 500; letter-spacing: 0.01em;
  color: var(--ink-2);
  transition: color .25s var(--ease);
}
.nav-links a:not(.nav-cta):hover { color: var(--navy); }
.nav-cta {
  background: var(--ink); color: var(--paper-w);
  padding: 0.55rem 1.1rem;
  font-weight: 600; letter-spacing: 0.04em;
  transition: background .25s var(--ease);
}
.nav-cta:hover { background: var(--navy); color: var(--paper-w); }
@media (max-width: 720px) {
  .nav-links a:not(.nav-cta) { display: none; }
}

/* HERO — Blueprint técnico */
.hero {
  position: relative;
  min-height: 100vh; min-height: 100svh;
  padding: 7rem var(--pad) 4rem;
  background:
    linear-gradient(180deg, var(--concrete) 0%, var(--paper-w) 100%);
  display: flex; align-items: center;
}
.hero-blueprint {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(30,55,106,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,55,106,0.07) 1px, transparent 1px);
  background-size: 44px 44px;
}
.bp-coord {
  position: absolute;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem; letter-spacing: 0.06em;
  color: var(--ink-3);
}
.bp-tl { top: 82px; left: var(--pad); }
.bp-tr { top: 82px; right: var(--pad); }
.bp-bl { bottom: 2rem; left: var(--pad); }
.bp-br { bottom: 2rem; right: var(--pad); }

.hero-content {
  position: relative; z-index: 1;
  max-width: var(--maxw); margin: 0 auto; width: 100%;
}
.hero-tag {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.85rem; color: var(--navy);
  letter-spacing: 0.08em; margin-bottom: 2rem;
}
.hero-h {
  font-family: "Archivo", sans-serif;
  font-weight: 700;
  font-size: clamp(2.4rem, 6.5vw, 5.2rem);
  line-height: 1; letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 2rem;
  text-wrap: balance;
  max-width: 22ch;
}
.hero-h .mark {
  color: var(--navy);
  position: relative;
  display: inline-block;
}
.hero-h .mark::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 6px;
  height: 8px;
  background: var(--steel-soft);
  opacity: 0.5;
  z-index: -1;
}
.hero-h .mark-2 {
  color: var(--blue);
  border-bottom: 4px solid var(--blue);
  padding-bottom: 3px;
}
.hero-desc {
  font-size: clamp(1rem, 1.3vw, 1.15rem);
  color: var(--ink-2);
  max-width: 55ch;
  margin-bottom: 2rem;
}
.hero-desc strong { color: var(--ink); font-weight: 600; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-bottom: 3rem; }
.btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.9rem 1.4rem;
  font-family: "Archivo", sans-serif;
  font-size: 0.95rem; font-weight: 600; letter-spacing: 0.01em;
  border: 1.5px solid transparent; cursor: pointer;
  transition: transform .2s var(--ease), background .2s, color .2s, border-color .2s;
}
.btn-solid { background: var(--ink); color: var(--paper-w); }
.btn-solid:hover { background: var(--navy); color: var(--paper-w); transform: translateY(-2px); }
.btn-ghost { border-color: var(--ink); color: var(--ink); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); transform: translateY(-2px); }

.hero-strip {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
  border-top: 1.5px solid var(--ink);
  padding-top: 1.5rem;
}
.strip-item {
  font-family: "Archivo Narrow", sans-serif;
  font-weight: 600; font-size: 0.95rem;
  color: var(--ink);
  display: flex; align-items: baseline; gap: 0.5rem;
}
.strip-n {
  font-family: "IBM Plex Mono", monospace;
  color: var(--navy); font-size: 0.85rem;
}
@media (max-width: 720px) {
  .hero-strip { grid-template-columns: 1fr 1fr; }
  .bp-tr, .bp-br { display: none; }
}

/* SECTION genérica */
.section {
  padding: clamp(4rem, 8vw, 7rem) var(--pad);
  max-width: var(--maxw); margin: 0 auto;
}
.s-head {
  display: grid; grid-template-columns: 1.4fr 1fr;
  gap: 2rem; margin-bottom: 3rem;
  padding-bottom: 1.5rem;
  border-bottom: 1.5px solid var(--ink);
  align-items: end;
}
.s-idx {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem; color: var(--navy);
  letter-spacing: 0.12em; margin-bottom: 0.8rem;
}
.s-idx.light { color: var(--steel-soft); }
.s-head h2 {
  font-family: "Archivo", sans-serif;
  font-weight: 700; font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.05; letter-spacing: -0.015em;
  color: var(--ink);
}
.s-head-right {
  font-size: 0.95rem; color: var(--ink-2);
  max-width: 40ch;
}
@media (max-width: 720px) { .s-head { grid-template-columns: 1fr; } }

/* SERVICIOS — Fichas técnicas */
.serv-blueprint {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
.ficha {
  background: var(--paper-w);
  border: 1px solid var(--line);
  border-top: 3px solid var(--navy);
  padding: 1.8rem 1.6rem;
  transition: transform .25s var(--ease), border-color .25s var(--ease);
}
.ficha:hover { transform: translateY(-4px); border-top-color: var(--blue); }
.ficha-head { display: flex; align-items: baseline; gap: 1rem; margin-bottom: 1rem; padding-bottom: 0.8rem; border-bottom: 1px dashed var(--line); }
.ficha-code {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem; color: var(--navy);
  letter-spacing: 0.1em;
  background: rgba(30,55,106,0.10);
  padding: 0.15rem 0.5rem;
}
.ficha h3 {
  font-family: "Archivo", sans-serif;
  font-weight: 700; font-size: 1.35rem;
  color: var(--ink);
}
.ficha p { color: var(--ink-2); font-size: 0.98rem; margin-bottom: 1rem; }
.ficha-list { list-style: none; }
.ficha-list li {
  padding: 0.4rem 0;
  font-size: 0.9rem; color: var(--ink-2);
  border-bottom: 1px dashed var(--line-soft);
  position: relative;
  padding-left: 1.2rem;
}
.ficha-list li::before {
  content: "▸";
  position: absolute; left: 0;
  color: var(--navy);
}
.ficha-list li:last-child { border-bottom: 0; }
@media (max-width: 700px) { .serv-blueprint { grid-template-columns: 1fr; } }

/* ENFOQUE — banda navy */
.approach {
  background: var(--navy-deep);
  color: var(--paper-w);
  padding: clamp(4rem, 7vw, 6rem) var(--pad);
}
.approach-wrap {
  max-width: var(--maxw); margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1.4fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: start;
}
.approach-left h2 {
  font-family: "Archivo", sans-serif;
  font-weight: 700;
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  line-height: 1.05; letter-spacing: -0.02em;
  color: var(--paper-w);
}
.approach-left h2 em {
  color: var(--steel-soft); font-style: italic; font-weight: 500;
}
.approach-right {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem;
}
.approach-item {
  padding: 1.4rem 1.2rem;
  border: 1px solid rgba(166,173,187,0.25);
  background: rgba(255,255,255,0.03);
}
.approach-icon {
  display: inline-block;
  font-size: 1.5rem; color: var(--steel-soft);
  margin-bottom: 0.6rem;
}
.approach-item h4 {
  font-family: "Archivo", sans-serif;
  font-weight: 600; font-size: 1.05rem;
  color: var(--paper-w); margin-bottom: 0.4rem;
}
.approach-item p { font-size: 0.9rem; color: var(--concrete); }
@media (max-width: 820px) {
  .approach-wrap { grid-template-columns: 1fr; }
  .approach-right { grid-template-columns: 1fr; }
}

/* NOSOTROS */
.about { background: var(--paper-w); }
.about-split {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}
.about-photo {
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 4/5;
}
.about-photo img { width: 100%; height: 100%; object-fit: cover; filter: saturate(0.95) contrast(1.03); }

.about-content .lead {
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  color: var(--ink); margin-bottom: 2rem;
  line-height: 1.55;
}
.about-content .lead strong { color: var(--navy); font-weight: 600; }

.about-check { list-style: none; }
.about-check li {
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.98rem;
  color: var(--ink);
  position: relative;
  padding-left: 1.6rem;
}
.about-check li::before {
  content: "◆";
  position: absolute; left: 0; top: 0.85rem;
  color: var(--navy);
  font-size: 0.75rem;
}
@media (max-width: 820px) { .about-split { grid-template-columns: 1fr; } .about-photo { max-width: 420px; margin-inline: auto; } }

/* CONTACTO */
.contact { background: var(--concrete-2); }
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 1rem;
}
.c-card {
  padding: 1.5rem 1.3rem;
  display: flex; flex-direction: column; gap: 0.4rem;
  min-height: 130px;
  position: relative;
  transition: transform .25s var(--ease);
}
a.c-card:hover { transform: translateY(-3px); }
.c-solid { background: var(--navy); color: var(--paper-w); }
.c-solid .c-k { color: var(--steel-soft); }
.c-line { background: var(--paper-w); border: 1.5px solid var(--navy); color: var(--ink); }
.c-line .c-k { color: var(--navy); }
.c-plain { background: var(--paper-w); border: 1px solid var(--line); color: var(--ink); }
.c-plain .c-k { color: var(--navy); }
.c-k {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase;
}
.c-v {
  font-family: "Archivo", sans-serif;
  font-weight: 600; font-size: 1.1rem; line-height: 1.35;
}
.c-a { position: absolute; right: 1.3rem; bottom: 1.3rem; font-size: 1.3rem; }
.c-map {
  grid-column: 1 / -1;
  border: 1px solid var(--line);
  overflow: hidden; min-height: 340px;
  filter: saturate(0.85);
}
.c-map iframe { width: 100%; height: 100%; min-height: 340px; border: 0; }

@media (max-width: 720px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* FOOTER */
.footer {
  background: var(--ink);
  color: var(--paper-w);
  padding: clamp(3rem, 5vw, 5rem) var(--pad) 2rem;
}
.foot-top {
  max-width: var(--maxw); margin: 0 auto;
  display: grid; grid-template-columns: auto 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(166,173,187,0.20);
  align-items: center;
}
.foot-logo {
  height: 84px; width: auto;
  filter: brightness(1.4) contrast(1.05);
  background: var(--paper-w);
  padding: 0.5rem 1rem; border-radius: 4px;
}
.foot-info p { font-size: 0.9rem; color: var(--concrete); margin-bottom: 0.3rem; }
.foot-bot {
  max-width: var(--maxw); margin: 1.4rem auto 0;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem; color: var(--steel-soft);
  letter-spacing: 0.06em;
}
@media (max-width: 620px) {
  .foot-top { grid-template-columns: 1fr; }
}

/* WHATSAPP FLOTANTE */
.wa-float {
  position: fixed; right: 1.3rem; bottom: 1.3rem; z-index: 60;
  width: 54px; height: 54px;
  background: var(--navy); color: var(--paper-w);
  display: grid; place-items: center;
  box-shadow: 0 12px 30px rgba(15,27,53,0.35);
  transition: transform .3s var(--ease);
}
.wa-float:hover { transform: translateY(-3px) scale(1.05); }