/* QR Negocios 2026 — software first, hardware in monochrome. */
.qrn-page {
  --qrn-black: #090a0a;
  --qrn-ink: #111313;
  --qrn-graphite: #262929;
  --qrn-white: #fff;
  --qrn-paper: #f5f4f0;
  --qrn-soft: #e9e8e3;
  --qrn-line: #d4d5d1;
  --qrn-muted: #616765;
  --qrn-accent: #143d36;
  background: var(--qrn-white);
  color: var(--qrn-ink);
}

.qrn-page .navbar.scrolled { background: rgba(255, 255, 255, .94); }
.qrn-main { overflow: clip; }
.qrn-shell { width: min(1180px, calc(100% - 64px)); margin-inline: auto; }
.qrn-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 20px;
  color: inherit;
  font: 600 11px/1.4 var(--font-display);
  letter-spacing: .16em;
  text-transform: uppercase;
}
.qrn-kicker::before { content: ""; width: 28px; height: 1px; background: currentColor; }

.qrn-hero {
  position: relative;
  padding: 150px 0 82px;
  background: var(--qrn-white);
}
.qrn-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: var(--qrn-line);
}
.qrn-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, .86fr) minmax(0, 1.14fr);
  gap: clamp(42px, 7vw, 96px);
  align-items: center;
}
.qrn-badge {
  display: inline-flex;
  align-items: center;
  margin-bottom: 24px;
  border: 1px solid #bfc2be;
  border-radius: 999px;
  padding: 8px 13px;
  color: #444a48;
  font: 600 10px/1 var(--font-display);
  letter-spacing: .13em;
  text-transform: uppercase;
}
.qrn-hero h1 {
  max-width: 620px;
  margin: 0;
  font: 500 clamp(50px, 6.2vw, 88px)/.94 var(--font-display);
  letter-spacing: -.065em;
}
.qrn-hero h1 span { display: block; color: #7b817e; }
.qrn-hero-lead {
  max-width: 600px;
  margin: 30px 0 0;
  color: var(--qrn-muted);
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.72;
}
.qrn-hero-lead strong { color: var(--qrn-ink); font-weight: 600; }
.qrn-actions { display: flex; flex-wrap: wrap; gap: 14px 24px; align-items: center; margin-top: 34px; }
.qrn-actions .btn { padding-inline: 25px; }
.qrn-text-link {
  color: var(--qrn-ink);
  border-bottom: 1px solid #9da19e;
  padding: 10px 0 7px;
  font-weight: 600;
  font-size: 14px;
}
.qrn-price { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: baseline; margin-top: 28px; }
.qrn-price strong { font: 500 30px/1 var(--font-display); letter-spacing: -.04em; }
.qrn-price span { color: var(--qrn-muted); font-size: 13px; }
.qrn-hero-media { min-width: 0; margin: 0; }
.qrn-hero-media-frame {
  position: relative;
  overflow: hidden;
  background: #dededb;
  border-radius: 4px;
  aspect-ratio: 4/3;
}
.qrn-hero-media img { width: 100%; height: 100%; object-fit: cover; }
.qrn-concept-label {
  position: absolute;
  right: 16px;
  bottom: 16px;
  max-width: calc(100% - 32px);
  background: rgba(255,255,255,.94);
  color: #222;
  padding: 9px 12px;
  font: 600 9px/1.3 var(--font-display);
  letter-spacing: .11em;
  text-transform: uppercase;
}
.qrn-hero-media figcaption { margin-top: 12px; color: var(--qrn-muted); font-size: 12px; line-height: 1.6; }

.qrn-proofbar { background: var(--qrn-paper); border-bottom: 1px solid var(--qrn-line); }
.qrn-proofbar ul {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  list-style: none;
  padding: 0;
  margin: 0;
}
.qrn-proofbar li { padding: 25px 24px; border-left: 1px solid var(--qrn-line); }
.qrn-proofbar li:last-child { border-right: 1px solid var(--qrn-line); }
.qrn-proofbar strong { display: block; font: 600 14px/1.35 var(--font-display); }
.qrn-proofbar span { display: block; margin-top: 5px; color: var(--qrn-muted); font-size: 12px; line-height: 1.45; }

.qrn-platform { padding: 105px 0; background: var(--qrn-black); color: #f7f7f4; }
.qrn-platform-grid { display: grid; grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr); gap: 72px; align-items: center; }
.qrn-platform .qrn-kicker { color: #c7cbc8; }
.qrn-platform h2,
.qrn-section-head h2,
.qrn-split-copy h2,
.qrn-process h2,
.qrn-buy h2 {
  margin: 0;
  font: 500 clamp(38px, 4.8vw, 66px)/1.02 var(--font-display);
  letter-spacing: -.055em;
}
.qrn-platform h2 span { color: #919795; }
.qrn-platform-copy > p:not(.qrn-kicker) { margin: 26px 0 0; max-width: 540px; color: #bfc4c1; font-size: 17px; line-height: 1.78; }
.qrn-platform-copy > p strong { color: #fff; }
.qrn-platform-list { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin-top: 38px; background: #383b3a; }
.qrn-platform-list article { min-height: 145px; padding: 24px; background: var(--qrn-black); }
.qrn-platform-list span { color: #878d8a; font-size: 11px; letter-spacing: .12em; }
.qrn-platform-list h3 { margin: 18px 0 8px; font: 500 18px/1.3 var(--font-display); }
.qrn-platform-list p { margin: 0; color: #aeb3b0; font-size: 14px; line-height: 1.6; }
.qrn-system-art { margin: 0; min-width: 0; }
.qrn-system-art img { width: 100%; border: 1px solid #343635; border-radius: 3px; background: #111; }
.qrn-system-art figcaption { color: #8d9390; font-size: 11px; line-height: 1.6; margin-top: 12px; }

.qrn-experience { padding: 105px 0; background: var(--qrn-white); }
.qrn-section-head { display: grid; grid-template-columns: 1fr .72fr; gap: 48px; align-items: end; margin-bottom: 54px; }
.qrn-section-head p:not(.qrn-kicker) { color: var(--qrn-muted); font-size: 17px; line-height: 1.75; max-width: 490px; }
.qrn-audiences { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--qrn-line); }
.qrn-audience { padding: clamp(32px, 5vw, 58px); min-width: 0; }
.qrn-audience + .qrn-audience { color: #f7f7f4; background: var(--qrn-black); }
.qrn-audience-label { display: block; color: var(--qrn-muted); font: 600 10px/1.3 var(--font-display); letter-spacing: .14em; text-transform: uppercase; }
.qrn-audience + .qrn-audience .qrn-audience-label { color: #979d9a; }
.qrn-audience h3 { max-width: 440px; margin: 24px 0 34px; font: 500 clamp(29px, 3vw, 43px)/1.08 var(--font-display); letter-spacing: -.045em; }
.qrn-audience ol { list-style: none; counter-reset: audience; margin: 0; padding: 0; }
.qrn-audience li { counter-increment: audience; display: grid; grid-template-columns: 38px 1fr; gap: 14px; padding: 17px 0; border-top: 1px solid var(--qrn-line); color: var(--qrn-muted); line-height: 1.6; }
.qrn-audience li::before { content: "0" counter(audience); color: var(--qrn-ink); font: 600 11px/1.7 var(--font-display); letter-spacing: .08em; }
.qrn-audience + .qrn-audience li { border-color: #343736; color: #bac0bd; }
.qrn-audience + .qrn-audience li::before { color: #fff; }

.qrn-studio {
  position: relative;
  overflow: hidden;
  padding: 108px 0;
  background:
    radial-gradient(circle at 92% 12%, rgba(20, 61, 54, .12) 0 7%, transparent 7.2%),
    linear-gradient(135deg, transparent 0 62%, rgba(20, 61, 54, .06) 62% 63%, transparent 63% 100%),
    #dfe3df;
}
.qrn-studio::before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  left: -230px;
  bottom: -245px;
  border: 1px solid rgba(20, 61, 54, .2);
  border-radius: 50%;
  box-shadow: 0 0 0 55px rgba(20, 61, 54, .045), 0 0 0 110px rgba(20, 61, 54, .03);
}
.qrn-studio-grid { position: relative; display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(48px, 7vw, 92px); align-items: center; }
.qrn-studio-copy { min-width: 0; }
.qrn-studio-copy h2 { margin: 0; font: 500 clamp(40px, 4.6vw, 64px)/1.02 var(--font-display); letter-spacing: -.055em; }
.qrn-studio-copy h2 span { display: block; color: #717a76; }
.qrn-studio-lead { max-width: 620px; margin: 26px 0 0; color: #4f5b57; font-size: 17px; line-height: 1.8; }
.qrn-studio-paths { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin-top: 36px; background: #bbc5bf; border: 1px solid #bbc5bf; }
.qrn-studio-paths article { min-width: 0; padding: 27px 25px; background: rgba(248, 249, 246, .85); }
.qrn-studio-paths article > span { color: #53615c; font: 600 9px/1.4 var(--font-display); letter-spacing: .13em; }
.qrn-studio-paths h3 { margin: 14px 0 9px; font: 500 22px/1.2 var(--font-display); letter-spacing: -.035em; }
.qrn-studio-paths p { margin: 0; color: #56625e; font-size: 14px; line-height: 1.7; }
.qrn-studio-truth { margin: 24px 0 0; padding-left: 18px; border-left: 3px solid var(--qrn-accent); color: #53605b; font-size: 13px; line-height: 1.75; }
.qrn-studio-truth strong { color: var(--qrn-ink); }
.qrn-control-preview { min-width: 0; padding: clamp(24px, 3.3vw, 44px); border: 1px solid #2c302f; border-radius: 5px; background: #0b0d0c; color: #f4f5f1; box-shadow: 0 35px 90px rgba(8, 15, 12, .24); }
.qrn-preview-top { display: flex; justify-content: space-between; gap: 20px; align-items: flex-start; padding-bottom: 23px; border-bottom: 1px solid #343a37; }
.qrn-preview-top > div span { display: block; color: #8f9994; font: 600 9px/1.3 var(--font-display); letter-spacing: .14em; }
.qrn-preview-top > div strong { display: block; margin-top: 7px; font: 600 12px/1.3 var(--font-display); letter-spacing: .08em; }
.qrn-preview-status { flex: 0 0 auto; border: 1px solid #65716c; border-radius: 999px; padding: 7px 10px; color: #d5ddd8; font: 600 8px/1 var(--font-display); letter-spacing: .12em; }
.qrn-preview-title { padding: 28px 0 26px; }
.qrn-preview-title span { display: block; color: #9ea8a3; font-size: 12px; }
.qrn-preview-title strong { display: block; max-width: 430px; margin-top: 8px; font: 500 clamp(26px, 3vw, 38px)/1.12 var(--font-display); letter-spacing: -.045em; }
.qrn-preview-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.qrn-preview-card { position: relative; overflow: hidden; min-height: 142px; padding: 20px; border: 1px solid #353b38; background: #161917; }
.qrn-preview-card--wide { grid-column: 1 / -1; min-height: 118px; background: #f2f3ef; color: #111; }
.qrn-preview-card > span { display: block; color: #89938e; font: 600 8px/1.4 var(--font-display); letter-spacing: .12em; }
.qrn-preview-card--wide > span { color: #66706b; }
.qrn-preview-card > strong { display: block; max-width: 190px; margin-top: 9px; font: 500 17px/1.3 var(--font-display); }
.qrn-preview-card--wide i { position: absolute; inset: 24px 24px 24px auto; width: 42%; border-left: 1px solid #9ca49f; background: repeating-linear-gradient(0deg, transparent 0 12px, rgba(17, 17, 17, .09) 12px 13px); }
.qrn-preview-card b { position: absolute; right: 19px; bottom: 16px; color: #7d8983; font: 500 32px/1 var(--font-display); }
.qrn-preview-card em { position: absolute; right: 20px; bottom: 20px; width: 46px; height: 32px; border-block: 1px solid #77817c; }
.qrn-preview-card em::after { content: ""; position: absolute; inset: 50% 0 auto; border-top: 1px solid #77817c; }
.qrn-preview-card--code { display: grid; grid-template-columns: 1fr 72px; align-items: end; gap: 12px; }
.qrn-preview-card--code > span { grid-column: 1 / -1; }
.qrn-abstract-code { width: 72px; aspect-ratio: 1; border: 5px solid #eef0ec; background: repeating-conic-gradient(#eef0ec 0 25%, transparent 0 50%) 0 0 / 18px 18px; opacity: .8; }
.qrn-preview-save { display: flex; justify-content: space-between; gap: 18px; align-items: center; margin-top: 10px; padding: 17px 19px; background: #f2f3ef; color: #111; }
.qrn-preview-save strong { font-size: 13px; }
.qrn-preview-save span { color: #58635e; font-size: 11px; }
.qrn-control-preview > p { margin: 15px 0 0; color: #77817c; font-size: 10px; line-height: 1.6; }

.qrn-finishes { padding: 105px 0; background: var(--qrn-paper); }
.qrn-finish-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.qrn-finish { min-width: 0; border: 1px solid var(--qrn-line); background: #fff; }
.qrn-finish-visual {
  position: relative;
  aspect-ratio: 20 / 31;
  min-height: 0;
  overflow: hidden;
  background: #e6e4df;
}
.qrn-finish--black .qrn-finish-visual { background: #111; }
.qrn-finish-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.03);
  transition: transform .7s cubic-bezier(.2, .65, .3, 1);
}
.qrn-finish-image--white,
.qrn-finish-image--black { object-position: center; }
.qrn-finish-visual::after {
  content: "QR DE MUESTRA · SIN DESTINO";
  position: absolute;
  right: 16px;
  bottom: 16px;
  border: 1px solid rgba(255,255,255,.24);
  background: rgba(8,10,9,.84);
  color: #fff;
  padding: 8px 10px;
  font: 600 8px/1 var(--font-display);
  letter-spacing: .12em;
  text-transform: uppercase;
  backdrop-filter: blur(8px);
}
.qrn-finish:hover .qrn-finish-image { transform: scale(1.012); }
.qrn-finish-copy { padding: 30px 32px 34px; border-top: 1px solid var(--qrn-line); }
.qrn-finish-copy span { color: var(--qrn-muted); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
.qrn-finish-copy h3 { margin: 10px 0 10px; font: 500 28px/1.15 var(--font-display); letter-spacing: -.04em; }
.qrn-finish-copy p { margin: 0; color: var(--qrn-muted); font-size: 15px; line-height: 1.7; }
.qrn-concept-note { margin-top: 22px; color: var(--qrn-muted); font-size: 12px; line-height: 1.7; }

.qrn-process { padding: 105px 0; background: #fff; }
.qrn-process-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 80px; align-items: start; }
.qrn-process .qrn-kicker { color: #626865; }
.qrn-process-list { list-style: none; margin: 0; padding: 0; counter-reset: qrn-step; }
.qrn-process-list li { counter-increment: qrn-step; display: grid; grid-template-columns: 52px 1fr; gap: 18px; padding: 28px 0; border-top: 1px solid var(--qrn-line); }
.qrn-process-list li::before { content: "0" counter(qrn-step); color: #747a77; font: 600 12px/1.6 var(--font-display); letter-spacing: .1em; }
.qrn-process-list h3 { margin: 0 0 8px; font: 500 21px/1.3 var(--font-display); }
.qrn-process-list p { margin: 0; color: var(--qrn-muted); font-size: 15px; line-height: 1.7; }

.qrn-security { padding: 86px 0; background: var(--qrn-soft); }
.qrn-security-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.qrn-security h2 { margin: 0; font: 500 clamp(34px, 4vw, 53px)/1.05 var(--font-display); letter-spacing: -.05em; }
.qrn-security p { margin: 0; color: var(--qrn-muted); font-size: 16px; line-height: 1.8; }
.qrn-security strong { color: var(--qrn-ink); }

.qrn-faq { padding: 100px 0; background: #fff; }
.qrn-faq-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 72px; }
.qrn-faq h2 { margin: 0; font: 500 clamp(36px, 4vw, 55px)/1.05 var(--font-display); letter-spacing: -.05em; }
.qrn-faq .faq-list { width: 100%; margin: 0; max-width: none; }
.qrn-faq .faq-item { border: 0; border-bottom: 1px solid var(--qrn-line); background: transparent; border-radius: 0; margin: 0; }
.qrn-faq .faq-question { width: 100%; text-align: left; padding: 23px 0; gap: 20px; align-items: flex-start; }
.qrn-faq .faq-answer { padding: 0; }
.qrn-faq .faq-answer p { padding: 0 0 24px; color: var(--qrn-muted); font-size: 15px; line-height: 1.75; }

.qrn-buy { padding: 92px 0; background: var(--qrn-black); color: #f7f7f4; }
.qrn-buy-grid { display: grid; grid-template-columns: 1fr .7fr; gap: 68px; align-items: end; }
.qrn-buy h2 span { color: #8d9390; }
.qrn-buy p { max-width: 610px; margin: 24px 0 0; color: #b8bebb; font-size: 17px; line-height: 1.75; }
.qrn-buy-action { justify-self: end; }
.qrn-buy-action .btn { background: #fff; color: #111; border-color: #fff; text-align: center; }
.qrn-buy-action small { display: block; max-width: 360px; margin-top: 16px; color: #929895; font-size: 12px; line-height: 1.65; }

.qrn-page a:focus-visible,
.qrn-page button:focus-visible { outline: 3px solid #6a9d91; outline-offset: 4px; }

@media (max-width: 980px) {
  .qrn-shell { width: min(100% - 48px, 1180px); }
  .qrn-hero-grid,
  .qrn-platform-grid { grid-template-columns: 1fr; }
  .qrn-hero-copy { max-width: 760px; }
  .qrn-platform-grid { gap: 48px; }
  .qrn-section-head { grid-template-columns: 1fr; gap: 22px; }
  .qrn-process-grid,
  .qrn-faq-grid { grid-template-columns: 1fr; gap: 42px; }
}

@media (max-width: 720px) {
  .qrn-shell { width: calc(100% - 40px); }
  .qrn-hero { padding: 112px 0 54px; }
  .qrn-hero h1 { font-size: clamp(43px, 12vw, 62px); }
  .qrn-hero-media-frame { aspect-ratio: 4 / 3; }
  .qrn-proofbar ul { grid-template-columns: 1fr 1fr; }
  .qrn-proofbar li:nth-child(odd) { border-left: 1px solid var(--qrn-line); }
  .qrn-proofbar li:nth-child(even) { border-right: 1px solid var(--qrn-line); }
  .qrn-proofbar li:nth-child(-n+2) { border-bottom: 1px solid var(--qrn-line); }
  .qrn-platform,
  .qrn-experience,
  .qrn-studio,
  .qrn-finishes,
  .qrn-process,
  .qrn-faq { padding: 70px 0; }
  .qrn-platform-list,
  .qrn-audiences,
  .qrn-studio-grid,
  .qrn-finish-grid,
  .qrn-security-grid,
  .qrn-buy-grid { grid-template-columns: 1fr; }
  .qrn-audience + .qrn-audience { border-top: 1px solid #343736; }
  .qrn-control-preview { max-width: 680px; }
  .qrn-buy-action { justify-self: start; width: 100%; }
  .qrn-buy-action .btn { width: 100%; }
}

@media (max-width: 440px) {
  .qrn-shell { width: calc(100% - 32px); }
  .qrn-hero-grid { gap: 34px; }
  .qrn-hero h1 { font-size: 41px; }
  .qrn-hero-lead { font-size: 16px; }
  .qrn-actions { align-items: flex-start; }
  .qrn-actions .btn { width: 100%; }
  .qrn-proofbar li { padding: 20px 14px; }
  .qrn-platform-list { grid-template-columns: 1fr; }
  .qrn-platform-list article { min-height: 0; }
  .qrn-audience { padding: 30px 22px; }
  .qrn-studio-paths { grid-template-columns: 1fr; }
  .qrn-preview-grid { grid-template-columns: 1fr; }
  .qrn-preview-card--wide { grid-column: auto; }
  .qrn-preview-card--code { grid-template-columns: 1fr 64px; }
  .qrn-abstract-code { width: 64px; }
  .qrn-preview-save { align-items: flex-start; flex-direction: column; }
  .qrn-finish-visual::after { right: 12px; bottom: 12px; }
  .qrn-security { padding: 64px 0; }
}

@media (prefers-reduced-motion: reduce) {
  .qrn-page *, .qrn-page *::before, .qrn-page *::after { scroll-behavior: auto !important; transition: none !important; }
}