/* Swiss Circular Engineering SA — estilo tipográfico internacional:
   retícula estricta, blanco/negro, un único acento rojo suizo. */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --ink: #111111;
  --ink-2: #4a4a4a;
  --ink-3: #8a8a8a;
  --paper: #ffffff;
  --grey: #f4f4f2;
  --rule: #111111;
  --hair: #d9d9d6;
  --red: #d52b1e;
  --font: "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --wrap: 1200px;
  --gutter: clamp(16px, 4vw, 40px);
  --header-h: 72px;
  /* motion kit */
  --mk-primario: #d52b1e; --mk-secundario: #111111; --mk-fondo: #ffffff; --mk-texto: #111111;
}

html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body { font-family: var(--font); background: var(--paper); color: var(--ink); font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; }
ul { list-style: none; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- Header ---------- */
.header { position: fixed; inset: 0 0 auto 0; height: var(--header-h); background: rgba(255,255,255,.96); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--hair); z-index: 100; }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; flex-shrink: 0; }
.brand-mark { display: block; width: 40px; height: 40px; flex: none; }
.brand-mark svg { display: block; width: 100%; height: 100%; }
.brand-name { font-size: 13px; font-weight: 700; line-height: 1.15; letter-spacing: .01em; }
.brand-name span { font-weight: 400; color: var(--ink-2); }
.nav { display: flex; gap: 28px; margin-left: auto; }
.nav a { font-size: 14px; font-weight: 500; text-decoration: none; color: var(--ink-2); padding: 6px 0; border-bottom: 1px solid transparent; transition: color .15s, border-color .15s; }
.nav a:hover { color: var(--ink); border-color: var(--ink); }
.lang { display: flex; border: 1px solid var(--ink); }
.lang-btn { border: 0; background: transparent; font: 600 12px/1 var(--font); letter-spacing: .06em; padding: 8px 10px; cursor: pointer; color: var(--ink); }
.lang-btn + .lang-btn { border-left: 1px solid var(--ink); }
.lang-btn.active { background: var(--ink); color: var(--paper); }
.menu-toggle { display: none; background: none; border: 0; width: 36px; height: 36px; cursor: pointer; position: relative; }
.menu-toggle span { position: absolute; left: 7px; right: 7px; height: 2px; background: var(--ink); transition: transform .2s; }
.menu-toggle span:first-child { top: 13px; } .menu-toggle span:last-child { top: 21px; }
.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }

/* ---------- Tipografía ---------- */
h1 { font-size: clamp(2.4rem, 5.6vw, 4.6rem); font-weight: 600; line-height: 1.04; letter-spacing: -0.035em; }
h2 { font-size: clamp(1.6rem, 2.6vw, 2.1rem); font-weight: 600; letter-spacing: -0.02em; line-height: 1.15; }
h3 { font-size: 1.1rem; font-weight: 600; letter-spacing: -0.01em; line-height: 1.3; }
p { color: var(--ink-2); }
.lead { font-size: clamp(1.15rem, 1.9vw, 1.45rem); line-height: 1.5; color: var(--ink); font-weight: 400; letter-spacing: -0.01em; max-width: 760px; }
.lead + p { margin-top: 1.2em; max-width: 680px; }
.label { display: flex; align-items: center; gap: 10px; font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--ink); }
.num { font-size: 13px; font-weight: 600; color: var(--red); margin-bottom: 10px; font-variant-numeric: tabular-nums; }
.small { font-size: 14px; color: var(--ink-3); margin-top: 8px; }

/* Cruz suiza y bandera de Colombia en miniatura */
.swiss { position: relative; display: inline-block; width: 14px; height: 14px; background: var(--red); flex: none; }
.swiss::before, .swiss::after { content: ""; position: absolute; background: #fff; }
.swiss::before { left: 6px; top: 3px; width: 2px; height: 8px; }
.swiss::after { left: 3px; top: 6px; width: 8px; height: 2px; }
.co { display: inline-block; width: 14px; height: 14px; background: linear-gradient(#fcd116 0 50%, #003893 50% 75%, #ce1126 75%); flex: none; vertical-align: -2px; }

/* ---------- Botones ---------- */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 14px 22px; font: 600 14px/1 var(--font); text-decoration: none; letter-spacing: .01em; transition: background .15s, color .15s; border: 1px solid var(--ink); }
.btn::after { content: "→"; font-weight: 400; }
.btn-dark { background: var(--ink); color: var(--paper); }
.btn-dark:hover { background: var(--red); border-color: var(--red); }
.btn-line { background: transparent; color: var(--ink); }
.btn-line:hover { background: var(--ink); color: var(--paper); }

/* ---------- Hero ---------- */
.hero { padding-top: calc(var(--header-h) + clamp(40px, 7vw, 96px)); }
.hero-grid { display: grid; grid-template-columns: 7fr 5fr; gap: clamp(24px, 5vw, 72px); align-items: end; }
.hero-text h1 { margin-top: 28px; }
.hero-sub { margin-top: 28px; font-size: clamp(1.02rem, 1.4vw, 1.15rem); max-width: 560px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.hero-photo { aspect-ratio: 4 / 5; overflow: hidden; background: var(--grey); }
.hero-photo img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.08); }

.facts { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: clamp(48px, 7vw, 88px); border-top: 2px solid var(--rule); }
.fact { display: flex; flex-direction: column; gap: 4px; padding: 20px 20px 24px 0; }
.fact + .fact { padding-left: 20px; border-left: 1px solid var(--hair); }
.fact-k { font-size: 12px; color: var(--ink-3); font-variant-numeric: tabular-nums; margin-bottom: 8px; }
.fact strong { font-size: clamp(1.25rem, 2vw, 1.6rem); font-weight: 600; letter-spacing: -0.02em; }
.fact span:last-child { font-size: 14px; color: var(--ink-2); line-height: 1.45; }

/* ---------- Secciones ---------- */
.section { padding: clamp(72px, 10vw, 128px) 0; }
.section-grey { background: var(--grey); }
.grid-12 { display: grid; grid-template-columns: 4fr 8fr; gap: clamp(24px, 5vw, 72px); border-top: 2px solid var(--rule); padding-top: 28px; }
.col-head h2 { max-width: 12ch; }

/* Esquema del proceso */
.scheme { margin-top: clamp(40px, 6vw, 72px); background: var(--paper); border: 1px solid var(--hair); padding: clamp(16px, 3vw, 40px); }
.scheme svg { width: 100%; height: auto; color: var(--ink); overflow: visible; }
.s-ring { fill: none; stroke: var(--ink); stroke-width: 10; }
.s-line { fill: none; stroke: var(--ink); stroke-width: 1.5; }
.s-red { stroke: var(--red); color: var(--red); stroke-dasharray: 5 5; }
.s-box { fill: var(--paper); stroke: var(--ink); stroke-width: 1.5; }
.s-box-dark { fill: var(--ink); }
.s-box-red { stroke: var(--red); }
.s-lbl { font: 500 17px var(--font); fill: var(--ink); text-anchor: middle; }
.s-left { text-anchor: start; }
.s-lbl-inv { fill: #fff; font-weight: 400; font-size: 15px; }
.s-lbl-strong { font-weight: 600; font-size: 22px; }
.s-small { font-size: 14px; }
.s-redtxt { fill: var(--red); }
.scheme-v { display: none; }
.s-v { font-size: 14px; }
.scheme figcaption { margin-top: 16px; font-size: 13px; color: var(--ink-3); }

.outputs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 40px; border-top: 1px solid var(--ink); }
.output { padding: 20px 20px 0 0; }
.output + .output { padding-left: 20px; border-left: 1px solid var(--hair); }
.num-s { display: block; font-size: 12px; font-weight: 600; color: var(--red); margin-bottom: 10px; }

/* Modelo */
.rows { border-top: 1px solid var(--ink); }
.row { display: grid; grid-template-columns: 1fr 1.6fr; gap: 24px; padding: 28px 0; border-bottom: 1px solid var(--hair); }
.band { margin-top: clamp(24px, 4vw, 40px); }
.band img { width: 100%; height: clamp(220px, 38vw, 520px); object-fit: cover; filter: grayscale(1) contrast(1.06); }
.band figcaption { margin-top: 10px; font-size: 13px; color: var(--ink-3); }

/* Presencia */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-top: 1px solid var(--ink); }
.place { padding: 24px 24px 8px 0; }
.place + .place { padding-left: 24px; border-left: 1px solid var(--hair); }
.place-k { display: flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--ink); margin-bottom: 14px; }
.place h3 { margin-bottom: 14px; }
.list li { padding: 9px 0; border-top: 1px solid var(--hair); font-size: 15px; color: var(--ink-2); }
.statement { margin-top: clamp(40px, 6vw, 72px); font-size: clamp(1.4rem, 2.8vw, 2.2rem); font-weight: 500; letter-spacing: -0.025em; line-height: 1.2; color: var(--ink); max-width: 22ch; padding-left: 20px; border-left: 4px solid var(--red); }

/* Contacto */
.contact { background: var(--ink); color: var(--paper); }
.contact .grid-12 { border-top-color: var(--paper); }
.contact p, .contact .lead { color: #e8e8e6; }
.contact .num { color: var(--red); }
.mail { display: inline-block; margin-top: 32px; font-size: clamp(1.5rem, 4vw, 2.8rem); font-weight: 500; letter-spacing: -0.02em; color: var(--paper); text-decoration: none; border-bottom: 2px solid var(--red); padding-bottom: 4px; word-break: break-all; }
.mail:hover { color: var(--red); }
.tel { margin-top: 18px; font-size: clamp(1.05rem, 2vw, 1.3rem); }
.tel span { color: #9a9a98; margin-right: 8px; }
.tel a { color: var(--paper); text-decoration: none; border-bottom: 1px solid #555; }
.tel a:hover { border-color: var(--red); }

/* Footer */
.footer { background: var(--paper); padding: 48px 0 28px; border-top: 1px solid var(--hair); }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 32px; }
.footer a { color: var(--ink); }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand p { color: var(--ink); font-weight: 600; font-size: 14px; }
.f-k { font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--ink) !important; margin-bottom: 10px; }
.footer p { font-size: 14px; line-height: 1.55; }
.footer-bottom { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--hair); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; }
.footer-bottom p { font-size: 13px; color: var(--ink-3); }
.made-by { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; color: var(--ink-3); text-decoration: none; }
.made-by strong { color: var(--ink); font-weight: 600; letter-spacing: .01em; }
.made-by:hover strong { color: #3E6BFF; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .nav { display: none; position: absolute; top: var(--header-h); left: 0; right: 0; flex-direction: column; gap: 0; background: var(--paper); border-bottom: 1px solid var(--ink); padding: 8px var(--gutter) 16px; }
  .nav.open { display: flex; }
  .nav a { padding: 14px 0; border-bottom: 1px solid var(--hair); font-size: 16px; color: var(--ink); }
  .menu-toggle { display: block; }
  .lang { margin-left: auto; }
  .hero-grid, .grid-12 { grid-template-columns: 1fr; }
  .hero-photo { aspect-ratio: 16 / 10; }
  .facts, .outputs { grid-template-columns: 1fr 1fr; }
  .fact:nth-child(3), .output:nth-child(3) { padding-left: 0; border-left: 0; }
  .fact:nth-child(n+3), .output:nth-child(n+3) { border-top: 1px solid var(--hair); }
  .output { padding-bottom: 20px; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .brand-name { display: none; }
  .row, .split { grid-template-columns: 1fr; }
  .row { gap: 8px; }
  .place + .place { padding-left: 0; border-left: 0; border-top: 1px solid var(--hair); }
  .scheme-h { display: none; }
  .scheme-v { display: block !important; max-width: 420px; margin: 0 auto; }
}