/* ============================================================
   MATESISMEX — Catálogo industrial azul acero (fondo claro)
   ============================================================ */

:root {
  --paper: #ffffff;
  --paper-2: #f4f5f7;
  --paper-3: #e6e9ee;
  --ink: #0f1620;         /* casi negro azulado */
  --ink-2: #414a58;
  --ink-3: #6d7686;
  --steel: #2f5aa1;       /* azul acero */
  --steel-deep: #1e3d75;
  --steel-soft: #6c8fce;
  --accent: #ff6b1a;      /* naranja industrial */
  --line: rgba(15,22,32,0.10);
  --line-soft: rgba(15,22,32,0.05);

  --pad: clamp(1.2rem, 4vw, 4rem);
  --maxw: 1320px;
  --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(--paper);
  color: var(--ink);
  font-family: "Space Grotesk", system-ui, 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 */
.splash {
  position: fixed; inset: 0; z-index: 999;
  background: var(--paper);
  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-logo {
  width: clamp(160px, 30vw, 240px); height: auto;
  filter: brightness(0.15) invert(0);
  animation: fadeUp .8s var(--ease) both;
}
.splash-load {
  width: 180px; height: 2px;
  background: var(--paper-3); margin-top: 1.6rem;
  position: relative; overflow: hidden;
}
.splash-load span {
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 0%; background: var(--steel);
  animation: loadFill 1.6s var(--ease) forwards;
}
@keyframes loadFill { to { width: 100%; } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } 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: 0.9rem var(--pad);
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), padding .25s var(--ease);
}
.nav.is-scrolled { border-bottom-color: var(--line); padding-block: 0.65rem; }
.nav-brand {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700; letter-spacing: 0.10em; font-size: 1rem;
  color: var(--ink);
}
.nav-logo { height: 34px; width: auto; filter: brightness(0.15) invert(0); }
.brand-txt { color: var(--ink); }
.nav-links { display: flex; align-items: center; gap: clamp(1rem, 2vw, 1.8rem); }
.nav-links a {
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.88rem; font-weight: 500;
  color: var(--ink-2);
  transition: color .25s var(--ease);
}
.nav-links a:not(.nav-cta):hover { color: var(--steel); }
.nav-cta {
  background: var(--ink); color: var(--paper);
  padding: 0.55rem 1.1rem;
  font-weight: 600;
  transition: background .25s var(--ease);
}
.nav-cta:hover { background: var(--steel-deep); color: var(--paper); }
@media (max-width: 720px) { .nav-links a:not(.nav-cta) { display: none; } }

/* HERO — dos columnas: info + métricas */
.hero {
  padding: 8rem var(--pad) 2rem;
  background:
    linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%);
  border-bottom: 1px solid var(--line);
}
.hero-cols {
  max-width: var(--maxw); margin: 0 auto;
  display: grid; grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: start;
}
.hero-badge {
  display: inline-block;
  font-family: "Space Mono", monospace;
  font-size: 0.75rem; letter-spacing: 0.10em;
  color: var(--steel);
  background: rgba(47,90,161,0.08);
  padding: 0.35rem 0.7rem;
  margin-bottom: 2rem;
}
.hero-h {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: clamp(2.4rem, 6vw, 5rem);
  line-height: 1.02; letter-spacing: -0.02em;
  color: var(--ink); margin-bottom: 1.5rem;
  text-wrap: balance;
}
.hero-h .under { border-bottom: 3px solid var(--accent); padding-bottom: 2px; }
.hero-h .bg-under {
  background: linear-gradient(180deg, transparent 60%, var(--steel-soft) 60%);
  padding: 0 0.15em;
}
.hero-h .mono-tag {
  font-family: "Space Mono", monospace;
  color: var(--steel); font-size: 0.65em;
  display: block; margin-top: 0.3em;
}
.hero-desc {
  font-size: clamp(1rem, 1.3vw, 1.12rem);
  color: var(--ink-2); max-width: 55ch;
  margin-bottom: 2rem;
}
.hero-desc strong { color: var(--ink); font-weight: 600; }

.hero-cta { display: flex; flex-wrap: wrap; gap: 0.8rem; }
.btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.85rem 1.4rem;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600; font-size: 0.95rem;
  border: 1.5px solid transparent; cursor: pointer;
  transition: transform .2s var(--ease), background .2s, color .2s, border-color .2s;
}
.btn-primary { background: var(--steel); color: var(--paper); }
.btn-primary:hover { background: var(--steel-deep); transform: translateY(-2px); color: var(--paper); }
.btn-secondary { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-secondary:hover { border-color: var(--steel); color: var(--steel); }

.hero-metrics {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.metric {
  background: var(--paper);
  padding: 1.4rem 1.2rem;
  display: flex; flex-direction: column; gap: 0.35rem;
  transition: background .25s var(--ease);
}
.metric:hover { background: var(--paper-2); }
.metric-k {
  font-family: "Space Mono", monospace;
  font-size: 0.72rem; letter-spacing: 0.10em;
  color: var(--steel);
}
.metric-v {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700; font-size: 2.2rem;
  color: var(--ink); line-height: 1;
}
.metric-l { font-size: 0.85rem; color: var(--ink-2); }

@media (max-width: 820px) { .hero-cols { grid-template-columns: 1fr; } }

.hero-rail {
  max-width: var(--maxw); margin: 3rem auto 0;
  padding: 0.9rem var(--pad);
  border-top: 1px solid var(--line);
  display: flex; gap: 1rem; align-items: center; flex-wrap: wrap;
  font-family: "Space Mono", monospace;
  font-size: 0.82rem; letter-spacing: 0.10em; text-transform: uppercase;
  color: var(--ink-2);
}
.hero-rail span { color: var(--accent); }
.hero-rail b { color: var(--ink); font-weight: 700; }

/* SECTION */
.section { padding: clamp(4rem, 8vw, 7rem) var(--pad); max-width: var(--maxw); margin: 0 auto; }
.sec-head { text-align: center; margin-bottom: 3rem; }
.sec-left { text-align: left; }
.sec-num {
  display: inline-block;
  font-family: "Space Mono", monospace;
  font-size: 0.78rem; letter-spacing: 0.12em;
  color: var(--steel); margin-bottom: 0.8rem;
}
.sec-head h2 {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700; font-size: clamp(1.9rem, 4.5vw, 3.2rem);
  line-height: 1.05; color: var(--ink);
  letter-spacing: -0.015em;
}
.sec-head h2 .under { border-bottom: 3px solid var(--accent); padding-bottom: 2px; }
.sec-sub { color: var(--ink-2); margin-top: 0.8rem; max-width: 55ch; margin-inline: auto; }

/* CATÁLOGO — tabla técnica */
.grid-table {
  width: 100%; border-collapse: collapse;
  background: var(--paper);
  border: 1px solid var(--line);
  font-size: 0.98rem;
}
.grid-table thead { background: var(--ink); color: var(--paper); }
.grid-table th {
  padding: 1rem 1.2rem;
  font-family: "Space Mono", monospace;
  font-size: 0.78rem; letter-spacing: 0.10em;
  text-align: left; text-transform: uppercase;
}
.grid-table tbody tr {
  border-top: 1px solid var(--line);
  transition: background .2s var(--ease);
}
.grid-table tbody tr:hover { background: var(--paper-2); }
.grid-table td {
  padding: 1.5rem 1.2rem;
  vertical-align: top;
}
.grid-table .td-num {
  font-family: "Space Mono", monospace;
  color: var(--steel); font-weight: 700;
  width: 60px;
}
.grid-table td strong {
  display: block;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700; font-size: 1.15rem;
  color: var(--ink); margin-bottom: 0.4rem;
}
.grid-table td p { color: var(--ink-2); font-size: 0.92rem; }
.grid-table .td-tag {
  font-family: "Space Mono", monospace;
  font-size: 0.75rem; letter-spacing: 0.08em;
  color: var(--accent);
  width: 80px;
}
@media (max-width: 720px) {
  .grid-table thead { display: none; }
  .grid-table tr { display: block; padding: 1rem; }
  .grid-table td { display: block; padding: 0.5rem 0; }
  .grid-table .td-num { width: auto; }
}

/* BANDA */
.band { background: var(--ink); color: var(--paper); padding: clamp(3.5rem, 6vw, 5.5rem) var(--pad); text-align: center; }
.band-inner {
  max-width: 900px; margin: 0 auto;
  display: flex; align-items: center; justify-content: center; gap: 1.5rem;
  flex-wrap: wrap;
}
.band-mark { color: var(--accent); font-size: 2rem; font-weight: 700; }
.band-txt {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 500; font-size: clamp(1.4rem, 3vw, 2.2rem);
  line-height: 1.25; color: var(--paper);
}
.band-txt em { color: var(--accent); font-style: italic; }

/* NOSOTROS */
.about { background: var(--paper-2); }
.about-grid {
  display: grid; grid-template-columns: 1.3fr 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: start;
}
.about-lead {
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  color: var(--ink); margin-bottom: 1.4rem;
  line-height: 1.55; max-width: 55ch;
}
.about-lead strong { color: var(--steel); font-weight: 600; }
.about-txt p:not(.about-lead) {
  font-size: 1rem; color: var(--ink-2); max-width: 55ch;
}

.specs {
  background: var(--paper);
  border: 1px solid var(--line);
}
.spec-row {
  display: grid; grid-template-columns: auto 1fr;
  gap: 1.5rem; padding: 0.85rem 1.2rem;
  border-bottom: 1px solid var(--line-soft);
}
.spec-row:last-child { border-bottom: 0; }
.spec-k {
  font-family: "Space Mono", monospace;
  font-size: 0.78rem; letter-spacing: 0.06em;
  color: var(--steel); text-transform: uppercase;
}
.spec-v {
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.95rem; color: var(--ink); font-weight: 500;
  text-align: right;
}
@media (max-width: 820px) { .about-grid { grid-template-columns: 1fr; } }

/* CONTACTO */
.contact-cols {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
.c-left { display: flex; flex-direction: column; border: 1px solid var(--line); }
.c-line {
  display: grid; grid-template-columns: 120px 1fr auto;
  gap: 1rem; align-items: center;
  padding: 1.2rem 1.2rem;
  border-bottom: 1px solid var(--line);
  transition: background .2s var(--ease), padding-left .2s var(--ease);
}
.c-line:last-child { border-bottom: 0; }
.c-line.c-static { align-items: start; }
a.c-line:hover { background: var(--paper-2); padding-left: 1.6rem; }
.c-k {
  font-family: "Space Mono", monospace;
  font-size: 0.78rem; letter-spacing: 0.08em;
  color: var(--steel); text-transform: uppercase;
}
.c-v {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 500; font-size: 1.1rem;
  color: var(--ink); line-height: 1.35;
}
.c-static .c-v { font-weight: 400; font-size: 0.95rem; color: var(--ink-2); }
.c-a { color: var(--accent); font-size: 1.3rem; }

.c-map { border: 1px solid var(--line); overflow: hidden; min-height: 340px; }
.c-map iframe { width: 100%; height: 100%; min-height: 340px; border: 0; filter: grayscale(0.4); }

@media (max-width: 820px) { .contact-cols { grid-template-columns: 1fr; } }

/* FOOTER */
.footer {
  background: var(--ink); color: var(--paper);
  padding: clamp(3rem, 5vw, 4rem) var(--pad) 1.6rem;
}
.foot-wrap {
  max-width: var(--maxw); margin: 0 auto;
  display: grid; grid-template-columns: auto 1fr;
  gap: 2rem; align-items: center;
  padding-bottom: 1.6rem;
  border-bottom: 1px solid rgba(255,255,255,0.15);
}
.foot-logo { height: 56px; filter: brightness(2.5) invert(1); }
.foot-info p { color: var(--paper); font-size: 0.9rem; opacity: 0.85; margin-bottom: 0.2rem; }
.foot-info p strong { color: var(--steel-soft); font-weight: 600; }
.foot-legal {
  max-width: var(--maxw); margin: 1rem auto 0;
  font-family: "Space Mono", monospace;
  font-size: 0.78rem; color: var(--paper); opacity: 0.55;
  letter-spacing: 0.04em;
}
@media (max-width: 620px) { .foot-wrap { grid-template-columns: 1fr; } }

/* WA */
.wa-float {
  position: fixed; right: 1.3rem; bottom: 1.3rem; z-index: 60;
  width: 56px; height: 56px; border-radius: 50%;
  background: #25d366; color: #062b13;
  display: grid; place-items: center;
  box-shadow: 0 12px 30px rgba(15,22,32,0.25);
  transition: transform .3s var(--ease);
}
.wa-float:hover { transform: translateY(-3px) scale(1.05); }