/* ============================================================
   GRUPO SPS INTERNACIONAL — Hoja de estilos
   FECHA: 2026-07-11 · EDICION: 1 · VERSION: 1.0.0
   CAMBIOS: Creación inicial. Paleta Mastin, layout trilingüe.
   ============================================================ */

:root {
  /* Paleta corporativa Mastin */
  --verde:   #50B833;
  --rojo:    #CF100B;
  --azul:    #28B4FF;
  --azulp:   #032558;  /* azul profundo */
  --antra:   #2B2F33;  /* antracita */

  /* Derivados de trabajo */
  --bg:        #0a1220;
  --bg-2:      #0f1b2e;
  --panel:     #12233b;
  --panel-2:   #16263f;
  --line:      rgba(40, 180, 255, 0.14);
  --line-2:    rgba(255, 255, 255, 0.06);
  --ink:       #eaf2fb;
  --ink-soft:  #a7bcd4;
  --ink-dim:   #6b829c;

  --maxw: 1200px;
  --gutter: clamp(20px, 5vw, 64px);
  --radius: 4px;

  --f-display: "Sora", "Segoe UI", system-ui, sans-serif;
  --f-body:    "Inter", "Segoe UI", system-ui, sans-serif;
  --f-mono:    "JetBrains Mono", "Consolas", monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  font-family: var(--f-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---------- Tipografía base ---------- */
h1, h2, h3, h4 { font-family: var(--f-display); font-weight: 700; line-height: 1.1; letter-spacing: -0.02em; }
a { color: inherit; text-decoration: none; }

.eyebrow {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--azul);
  display: inline-block;
  margin-bottom: 1.1rem;
}
.eyebrow::before { content: "// "; color: var(--verde); }

.container { max-width: var(--maxw); margin: 0 auto; padding-inline: var(--gutter); }

section { padding-block: clamp(72px, 11vw, 150px); position: relative; }

.section-title { font-size: clamp(1.9rem, 4.4vw, 3.3rem); margin-bottom: 1rem; max-width: 16ch; }
.section-intro { color: var(--ink-soft); font-size: 1.08rem; max-width: 60ch; }

/* ---------- Header ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--gutter); height: 72px;
  background: rgba(10, 18, 32, 0.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-2);
  transition: background 0.3s;
}
.brand { display: flex; align-items: center; gap: 12px; font-family: var(--f-display); font-weight: 700; font-size: 1.05rem; letter-spacing: -0.01em; }
.brand .mark { height: 46px; width: auto; flex: none; }
.brand .sub { color: var(--azul); }
.site-footer .brand .mark { height: 42px; }

.nav { display: flex; align-items: center; gap: 30px; }
.nav-links { display: flex; gap: 26px; list-style: none; }
.nav-links a {
  font-size: 0.86rem; color: var(--ink-soft); font-weight: 500;
  position: relative; padding-block: 4px; transition: color 0.2s;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; height: 2px; width: 0;
  background: var(--verde); transition: width 0.25s;
}
.nav-links a:hover::after { width: 100%; }

/* Language switch */
.lang-switch { display: flex; align-items: center; gap: 8px; }
.lang-switch button {
  background: transparent; border: none; cursor: pointer; padding: 3px;
  line-height: 0; border-radius: 3px; transition: all 0.2s;
  opacity: 0.42; filter: grayscale(0.35);
}
.lang-switch button img {
  width: 30px; height: 20px; object-fit: cover; border-radius: 2px;
  display: block; box-shadow: 0 1px 3px rgba(0,0,0,0.4);
}
.lang-switch button:hover { opacity: 0.85; filter: none; }
.lang-switch button.active { opacity: 1; filter: none; outline: 2px solid var(--azul); outline-offset: 1px; }

.burger { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; }
.burger span { width: 24px; height: 2px; background: var(--ink); transition: 0.3s; }

/* ---------- Hero ---------- */
.hero { min-height: 100vh; display: flex; align-items: center; padding-top: 72px; position: relative; overflow: hidden; }
.hero-strata { position: absolute; inset: 0; z-index: 0; opacity: 0.55; }
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: radial-gradient(120% 90% at 78% 15%, transparent 20%, var(--bg) 78%),
              linear-gradient(180deg, rgba(10,18,32,0.2), var(--bg) 92%);
}
.hero .container { position: relative; z-index: 2; }
.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 40px; align-items: center; }

.hero h1 {
  font-size: clamp(2.6rem, 6.6vw, 5.4rem);
  margin: 0.6rem 0 1.4rem;
  background: linear-gradient(180deg, #fff 30%, var(--azul) 160%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-sub { font-size: clamp(1rem, 1.6vw, 1.22rem); color: var(--ink-soft); max-width: 54ch; margin-bottom: 2.4rem; }

.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  font-family: var(--f-display); font-weight: 600; font-size: 0.9rem;
  padding: 13px 26px; border-radius: var(--radius); cursor: pointer;
  border: 1px solid transparent; transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
  display: inline-flex; align-items: center; gap: 9px;
}
.btn-primary { background: var(--verde); color: #04140a; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px -8px rgba(80,184,51,0.5); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--azul); color: var(--azul); }

/* Hero stats */
.hero-stats { display: grid; gap: 22px; border-left: 2px solid var(--line); padding-left: 26px; }
.stat .num { font-family: var(--f-display); font-size: clamp(2.2rem, 4vw, 3.1rem); font-weight: 700; color: var(--azul); line-height: 1; }
.stat .num .unit { font-size: 0.5em; color: var(--verde); }
.stat .lbl { font-family: var(--f-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-dim); margin-top: 6px; }

/* ---------- Intro band ---------- */
.intro { background: var(--bg-2); border-block: 1px solid var(--line-2); }
.intro-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px; align-items: start; }
.intro-body { font-size: 1.15rem; color: var(--ink-soft); }
.intro-body strong { color: var(--ink); font-weight: 600; }

/* ---------- Ecosystem ---------- */
.eco-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; margin-top: 3rem; }
.eco-card {
  background: linear-gradient(160deg, var(--panel), var(--panel-2));
  border: 1px solid var(--line-2); border-radius: var(--radius);
  padding: 30px 26px; position: relative; overflow: hidden;
  transition: transform 0.2s, border-color 0.2s;
}
.eco-card::before {
  content: ""; position: absolute; top: 0; left: 0; width: 3px; height: 100%;
  background: var(--verde); opacity: 0.8;
}
.eco-card:hover { transform: translateY(-4px); border-color: var(--line); }
.eco-card .tag {
  font-family: var(--f-mono); font-size: 0.68rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--azul); display: inline-block; margin-bottom: 14px;
}
.eco-card h3 { font-size: 1.28rem; margin-bottom: 12px; }
.eco-card p { color: var(--ink-soft); font-size: 0.95rem; margin-bottom: 20px; }
.eco-card .foot { display: flex; align-items: center; justify-content: space-between; }
.status { font-family: var(--f-mono); font-size: 0.68rem; letter-spacing: 0.08em; display: inline-flex; align-items: center; gap: 7px; }
.status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; }
.status.prod { color: var(--verde); } .status.prod::before { background: var(--verde); box-shadow: 0 0 8px var(--verde); }
.status.dev  { color: var(--azul); }  .status.dev::before  { background: var(--azul); }
.eco-icon { width: 40px; height: 40px; margin-bottom: 18px; }

/* ---------- Services ---------- */
.services { background: var(--bg-2); border-block: 1px solid var(--line-2); }
.srv-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1px; background: var(--line-2); border: 1px solid var(--line-2); border-radius: var(--radius); overflow: hidden; margin-top: 3rem; }
.srv-item { background: var(--bg); padding: 34px 28px; transition: background 0.2s; }
.srv-item:hover { background: var(--panel); }
.srv-num { font-family: var(--f-mono); font-size: 0.78rem; color: var(--verde); margin-bottom: 14px; }
.srv-item h3 { font-size: 1.12rem; margin-bottom: 10px; }
.srv-item p { color: var(--ink-soft); font-size: 0.92rem; }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
.about-body p { color: var(--ink-soft); font-size: 1.05rem; margin-bottom: 1.2rem; }
.rijalba-card {
  background: linear-gradient(155deg, var(--azulp), #041a3d);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 34px;
  position: relative; overflow: hidden;
}
.rijalba-card::after {
  content: ""; position: absolute; right: -40px; bottom: -40px; width: 180px; height: 180px;
  border: 1px solid var(--azul); border-radius: 50%; opacity: 0.18;
}
.rijalba-card .eyebrow { color: var(--verde); }
.rijalba-card h3 { font-size: 1.5rem; margin-bottom: 14px; }
.rijalba-card p { color: var(--ink-soft); }
.about-side { display: flex; flex-direction: column; gap: 22px; }
.founder { position: relative; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
.founder img { width: 100%; display: block; aspect-ratio: 4/3; object-fit: cover; object-position: center 22%; filter: saturate(1.02); }
.founder figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 40px 20px 16px;
  display: flex; flex-direction: column; gap: 3px;
  background: linear-gradient(180deg, transparent, rgba(3,20,45,0.94));
}
.founder-name { font-family: var(--f-display); font-weight: 700; font-size: 1.05rem; color: #fff; }
.founder-role { font-family: var(--f-mono); font-size: 0.72rem; letter-spacing: 0.04em; color: var(--azul); }

.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 2.6rem; }
.pillar { border-top: 2px solid var(--verde); padding-top: 14px; }
.pillar h4 { font-size: 1.05rem; color: var(--azul); margin-bottom: 6px; }
.pillar p { font-size: 0.85rem; color: var(--ink-dim); }

/* ---------- Cases ---------- */
.cases { background: var(--bg-2); border-block: 1px solid var(--line-2); }
.case-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; margin-top: 3rem; }
.case-card { background: var(--panel); border: 1px solid var(--line-2); border-radius: var(--radius); padding: 28px; position: relative; }
.case-place { font-family: var(--f-mono); font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--verde); margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.case-place::before { content: "◆"; color: var(--azul); }
.case-card p { color: var(--ink-soft); font-size: 0.95rem; }
.reach { margin-top: 3rem; text-align: center; padding: 32px; border: 1px dashed var(--line); border-radius: var(--radius); }
.reach .lbl { font-family: var(--f-mono); font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-dim); margin-bottom: 10px; }
.reach .countries { font-family: var(--f-display); font-size: clamp(1rem, 2.4vw, 1.6rem); font-weight: 600; color: var(--ink); }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.contact-info h2 { margin-bottom: 1.2rem; }
.contact-info > p { color: var(--ink-soft); margin-bottom: 2rem; }
.contact-block { display: flex; gap: 14px; margin-bottom: 20px; align-items: flex-start; }
.contact-block .ic { width: 22px; height: 22px; flex: none; color: var(--azul); margin-top: 2px; }
.contact-block .k { font-family: var(--f-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-dim); }
.contact-block .v { color: var(--ink); font-weight: 500; }
.contact-form { background: var(--panel); border: 1px solid var(--line-2); border-radius: var(--radius); padding: 34px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-family: var(--f-mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-dim); margin-bottom: 8px; }
.field input, .field textarea {
  width: 100%; background: var(--bg); border: 1px solid var(--line-2); border-radius: var(--radius);
  padding: 12px 14px; color: var(--ink); font-family: var(--f-body); font-size: 0.95rem; transition: border-color 0.2s;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--azul); }
.field textarea { resize: vertical; min-height: 110px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--antra); border-top: 1px solid var(--line-2); padding-block: 56px 30px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 40px; }
.footer-brand .brand { margin-bottom: 14px; }
.footer-brand p { color: var(--ink-dim); font-size: 0.9rem; max-width: 34ch; }
.footer-col h4 { font-family: var(--f-mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--azul); margin-bottom: 16px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: var(--ink-soft); font-size: 0.9rem; transition: color 0.2s; }
.footer-col a:hover { color: var(--verde); }
.footer-bottom { border-top: 1px solid var(--line-2); padding-top: 24px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; color: var(--ink-dim); font-size: 0.82rem; }
.footer-bottom .flags { font-family: var(--f-mono); letter-spacing: 0.1em; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid, .intro-grid, .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: row; border-left: none; border-top: 2px solid var(--line); padding-left: 0; padding-top: 24px; display: flex; gap: 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; position: absolute; top: 72px; left: 0; right: 0; flex-direction: column; background: var(--bg-2); padding: 20px var(--gutter); gap: 4px; border-bottom: 1px solid var(--line); }
  .nav-links.open { display: flex; }
  .nav-links li { padding: 8px 0; }
  .burger { display: flex; }
  .pillars { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; gap: 20px; }
  .hero-cta { flex-direction: column; }
  .btn { justify-content: center; }
}

/* ============================================================
   FONDOS FOTOGRÁFICOS DE MINERÍA · v1.2.0 · 2026-07-11
   ============================================================ */

/* HERO: foto de rajo de fondo, bajo los estratos SVG */
.hero { position: relative; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background: url('../img/rajo_1_soft.jpg') center/cover no-repeat;
  opacity: 0.55;
}
.hero-strata { opacity: 0.35; }

/* SERVICIOS: fondo subterráneo */
.services { position: relative; }
.services::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background: url('../img/subte_3_soft.jpg') center/cover no-repeat;
  opacity: 0.32;
}
.services .container { position: relative; z-index: 1; }

/* CLIENTES: fondo cielo abierto */
.cases { position: relative; }
.cases::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background: url('../img/rajo_4_soft.jpg') center/cover no-repeat;
  opacity: 0.30;
}
.cases .container { position: relative; z-index: 1; }

/* Galería de productos / capturas técnicas */
.prodshow { background: var(--bg-2); border-block: 1px solid var(--line-2); }
.prodshow .container { position: relative; z-index: 1; }
.shot-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 18px; margin-top: 2.6rem; }
.shot { background: var(--panel); border: 1px solid var(--line-2); border-radius: var(--radius); overflow: hidden; transition: transform 0.2s, border-color 0.2s; }
.shot:hover { transform: translateY(-4px); border-color: var(--line); }
.shot img { width: 100%; height: 220px; object-fit: cover; object-position: center; display: block; background: #0a1220; }
.shot .cap { padding: 16px 18px; }
.shot .cap .k { font-family: var(--f-mono); font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--verde); margin-bottom: 6px; }
.shot .cap h4 { font-size: 1.05rem; margin-bottom: 6px; }
.shot .cap p { color: var(--ink-soft); font-size: 0.88rem; }

/* Sección con fondo fotográfico genérico */
.photo-band { position: relative; }
.photo-band::before { content: ""; position: absolute; inset: 0; z-index: 0; background-size: cover; background-position: center; opacity: 0.3; }
.photo-band .container { position: relative; z-index: 1; }
.photo-band.blasting::before { background-image: url('../img/voladura_catoca_soft.jpg'); opacity: 0.5; }

/* ============================================================
   IMAGEN EN TARJETAS DEL ECOSISTEMA · 2026-07-12
   ============================================================ */
.eco-card { display: flex; flex-direction: column; padding: 0; overflow: hidden; }
.eco-thumb { width: 100%; height: 160px; object-fit: cover; object-position: center; display: block; background: #0a1220; border-bottom: 1px solid var(--line-2); }
.eco-card > .tag, .eco-card > h3, .eco-card > p, .eco-card > .foot { padding-inline: 26px; }
.eco-card > .tag { padding-top: 24px; }
.eco-card > .foot { padding-bottom: 26px; margin-top: auto; }

/* ============================================================
   CASOS DE ÉXITOS INTERNACIONALES (video) · 2026-07-12
   Rejilla adaptable: respeta orientación de cada video
   ============================================================ */
.casos { position: relative; }
.caso-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 26px; margin-top: 3rem; align-items: start; }
.caso-card { background: var(--panel); border: 1px solid var(--line-2); border-radius: var(--radius); overflow: hidden; transition: transform 0.2s, border-color 0.2s; }
.caso-card:hover { transform: translateY(-4px); border-color: var(--line); }
.caso-video { width: 100%; display: block; background: #000; }
.caso-video.horizontal { aspect-ratio: 16 / 9; object-fit: cover; }
.caso-video.vertical { aspect-ratio: 9 / 16; max-height: 560px; object-fit: contain; }
.caso-body { padding: 22px 24px 26px; }
.caso-flag { font-family: var(--f-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--verde); margin-bottom: 10px; display: inline-flex; align-items: center; gap: 8px; }
.caso-flag::before { content: "▶"; color: var(--azul); font-size: 0.8em; }
.caso-body h3 { font-size: 1.05rem; line-height: 1.4; color: var(--ink); font-weight: 600; }