/* NodoStudio — total black + azul nodo */
:root {
  --negro: #000;
  --grafito: #0e0f12;
  --linea: #25272d;
  --tiza: #eceef1;
  --niebla: #969ba6;
  --nodo: #2563ff;
  --nodo-hover: #4a7dff;
  --cielo: #b7dcff;
  --gut: clamp(32px, 6vw, 96px);
  --max: 1280px;
  --radius: 14px;
  --font: "Figtree", system-ui, -apple-system, "Segoe UI", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; overflow-x: hidden; overflow-x: clip; }
body {
  margin: 0; background: var(--negro); color: var(--tiza);
  font: 400 1.0625rem/1.6 var(--font);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  overflow-x: hidden; overflow-x: clip;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3 { margin: 0; font-weight: 800; letter-spacing: -0.025em; line-height: 1.05; }
p { margin: 0; }
figure { margin: 0; }
:focus-visible { outline: 2px solid var(--cielo); outline-offset: 3px; border-radius: 4px; }

.wrap { max-width: var(--max); margin: 0 auto; padding-inline: var(--gut); }
.narrow > * { max-width: 820px; }

.skip { position: absolute; left: 12px; top: -60px; background: var(--nodo); color: #fff; padding: 10px 14px; border-radius: 8px; z-index: 50; }
.skip:focus { top: 12px; }

/* ---------- Esfera (la "o" del logo) ---------- */
.sphere {
  display: inline-block; border-radius: 50%;
  background: radial-gradient(circle at 42% 38%, var(--cielo) 0%, #5b9bff 22%, var(--nodo) 52%, #0b2ea8 82%, #061a66 100%);
  box-shadow: 0 0 0.6em rgba(37, 99, 255, 0.35);
}

/* ---------- Logo ---------- */
.logo { display: inline-flex; align-items: center; font-weight: 800; letter-spacing: -0.035em; font-size: 1.35rem; line-height: 1; }
.logo-nod { color: var(--tiza); }
.logo-studio { color: var(--nodo); }
.logo .sphere { width: 0.74em; height: 0.74em; margin: 0 0.03em 0 0.02em; transform: translateY(0.02em); }
.logo-lg { font-size: 2rem; }

/* ---------- Botones y links ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5em;
  min-height: 48px; padding: 0 1.4em; border-radius: 999px;
  background: var(--nodo); color: #fff; text-decoration: none; font-weight: 600;
  border: 1px solid var(--nodo); transition: background-color .2s, border-color .2s;
}
.btn:hover { background: var(--nodo-hover); border-color: var(--nodo-hover); }
.btn-ghost { background: transparent; color: var(--tiza); border-color: #3a3d45; }
.btn-ghost:hover { background: transparent; border-color: var(--tiza); }
.btn-sm { min-height: 38px; padding: 0 1em; font-size: .92rem; }
.link { color: var(--cielo); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }
.link:hover { color: #fff; }

/* ---------- Header ---------- */
.top { position: sticky; top: 0; z-index: 20; background: rgba(0,0,0,.82); backdrop-filter: saturate(140%) blur(12px); -webkit-backdrop-filter: saturate(140%) blur(12px); border-bottom: 1px solid transparent; transition: border-color .3s; }
.top.scrolled { border-bottom-color: var(--linea); }
.top-in { display: flex; align-items: center; gap: 28px; height: 72px; }
.top-logo { text-decoration: none; margin-right: auto; }
.menu { display: flex; gap: 26px; }
.menu a { color: var(--niebla); text-decoration: none; font-weight: 500; font-size: .96rem; }
.menu a:hover { color: var(--tiza); }

.lang { display: inline-flex; border: 1px solid var(--linea); border-radius: 999px; padding: 3px; }
.lang a { min-width: 38px; min-height: 30px; display: inline-flex; align-items: center; justify-content: center; border-radius: 999px; text-decoration: none; font-size: .8rem; font-weight: 600; color: var(--niebla); letter-spacing: .02em; }
.lang a:hover { color: var(--tiza); }
.lang a[aria-current="true"] { background: var(--tiza); color: var(--negro); }

/* ---------- Riel de nodos ---------- */
.rail {
  position: absolute; top: 120px; bottom: 0; width: 1px; pointer-events: none; z-index: 1;
  left: calc(max(0px, (100% - var(--max)) / 2) + var(--gut) / 2);
  background: linear-gradient(to bottom, var(--nodo) 0, rgba(37,99,255,.6) 30%, rgba(37,99,255,.4) 100%);
  transform-origin: top; animation: draw 1.6s cubic-bezier(.6,0,.2,1) .2s both;
}
.rail-sphere { position: absolute; top: -22px; left: -21px; width: 43px; height: 43px; box-shadow: 0 0 40px rgba(37,99,255,.55); }
@keyframes draw { from { transform: scaleY(0); } to { transform: scaleY(1); } }
body { position: relative; }

.node { position: relative; }
.node::before {
  content: ""; position: absolute; top: .42em; left: calc(var(--gut) / -2 - 5px);
  width: 11px; height: 11px; border-radius: 50%; background: var(--nodo);
  box-shadow: 0 0 0 4px var(--negro), 0 0 18px rgba(37,99,255,.8);
}

/* ---------- Hero ---------- */
.hero { position: relative; }
.hero-in { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr); align-items: end; gap: 24px; min-height: min(86vh, 860px); }
.hero-copy { padding: 72px 0 96px; position: relative; z-index: 2; }
.hero h1 { font-size: clamp(2.7rem, 6.4vw, 6rem); line-height: .98; letter-spacing: -0.04em; }
.hero h1 span { display: block; }
.lead { margin-top: 28px; max-width: 34em; color: #c3c7cf; font-size: clamp(1.08rem, 1.5vw, 1.25rem); }
.actions { margin-top: 36px; display: flex; flex-wrap: wrap; gap: 12px; }
.hero-photo { align-self: stretch; position: relative; margin-right: calc(-1 * (var(--gut) + max(0px, (100vw - var(--sb, 0px) - var(--max)) / 2))); }
.hero-photo img {
  width: 100%; height: 100%; object-fit: cover; object-position: 50% 12%;
  -webkit-mask-image: linear-gradient(to right, transparent 0, #000 22%), linear-gradient(to top, transparent 0, #000 18%);
  -webkit-mask-composite: source-in; mask-image: linear-gradient(to right, transparent 0, #000 22%), linear-gradient(to top, transparent 0, #000 18%);
  mask-composite: intersect;
}

/* ---------- Secciones ---------- */
.sec { padding: clamp(80px, 11vw, 150px) 0; position: relative; scroll-margin-top: 64px; }
.sec h2 { font-size: clamp(2rem, 4.2vw, 3.4rem); max-width: 18em; }
.intro { margin-top: 18px; color: var(--niebla); max-width: 36em; font-size: 1.12rem; }
.big { font-size: clamp(1.2rem, 2vw, 1.5rem); line-height: 1.5; color: #d4d7dd; margin-top: 26px; }

.problem .dashes { list-style: none; padding: 0; margin: 40px 0 0; display: grid; gap: 14px; }
.dashes li { padding-left: 28px; position: relative; color: var(--niebla); }
.dashes li::before { content: ""; position: absolute; left: 0; top: .78em; width: 14px; height: 1px; background: var(--nodo); }

.frame { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--linea); background: var(--grafito); }
.frame img { width: 100%; height: 100%; object-fit: cover; }

/* Servicios */
.split { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(40px, 6vw, 96px); align-items: start; }
.split-side { position: sticky; top: 110px; }
.side-img { margin-top: 36px; aspect-ratio: 4 / 4.2; }
.svc-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--linea); }
.svc { padding: 30px 0 32px; border-bottom: 1px solid var(--linea); display: grid; gap: 10px; }
.svc h3 { font-size: clamp(1.3rem, 2vw, 1.6rem); letter-spacing: -0.02em; }
.svc p { color: var(--niebla); max-width: 36em; }

/* Casos */
.case { margin-top: 56px; display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
.case h3, .case-mini h3 { font-size: clamp(1.6rem, 2.6vw, 2.2rem); }
.case-sector { color: var(--cielo); margin: 8px 0 18px; font-weight: 500; }
.case-copy p:not(.case-sector) { color: #c3c7cf; }
.case-copy .link, .case-mini .link { display: inline-block; margin-top: 22px; }
.shots { position: relative; display: grid; gap: 14px; }
.shot { border-radius: 10px; overflow: hidden; border: 1px solid var(--linea); box-shadow: 0 30px 60px -30px rgba(37,99,255,.35); background: #f6f2ea; }
.shot img { width: 100%; }
.shots figcaption { color: var(--niebla); font-size: .9rem; margin-top: 4px; }
.case-row { margin-top: 72px; padding-top: 48px; border-top: 1px solid var(--linea); display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(32px, 5vw, 72px); }
.case-mini p:not(.case-sector) { color: #c3c7cf; }
.others { color: var(--niebla); align-self: end; max-width: 40em; }

/* Proceso */
.process { margin-top: 56px; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); gap: clamp(32px, 5vw, 80px); align-items: start; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 44px 40px; }
.step { position: relative; padding-top: 22px; border-top: 1px solid var(--linea); }
.step-n { display: block; font-size: 3.2rem; font-weight: 800; line-height: 1; color: var(--nodo); letter-spacing: -0.04em; margin-bottom: 18px; }
.step h3 { font-size: 1.3rem; margin-bottom: 10px; }
.step p { color: var(--niebla); }
.process-img { aspect-ratio: 3 / 4; }

/* Sobre mí */
.about-in { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(40px, 6vw, 96px); align-items: start; }
.about-img { aspect-ratio: 3 / 4; }
.about-copy p + p { margin-top: 18px; color: #c3c7cf; }
.sign { color: var(--cielo) !important; font-weight: 600; }
.why { margin-top: 56px; padding-top: 40px; border-top: 1px solid var(--linea); }
.why-title { font-size: 1.5rem; }
.why-grid { margin-top: 26px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 36px; }
.why-item h3 { font-size: 1.12rem; letter-spacing: -0.01em; margin-bottom: 6px; }
.why-item p { color: var(--niebla); font-size: 1rem; }

/* FAQ */
.faq { margin-top: 40px; border-top: 1px solid var(--linea); }
.qa { border-bottom: 1px solid var(--linea); }
.qa summary { list-style: none; cursor: pointer; padding: 24px 44px 24px 0; font-weight: 600; font-size: 1.15rem; position: relative; }
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after { content: ""; position: absolute; right: 6px; top: 50%; width: 14px; height: 14px; margin-top: -7px;
  background: linear-gradient(var(--tiza), var(--tiza)) center / 14px 2px no-repeat, linear-gradient(var(--tiza), var(--tiza)) center / 2px 14px no-repeat; transition: transform .25s; }
.qa[open] summary::after { transform: rotate(45deg); }
.qa p { padding: 0 44px 26px 0; color: var(--niebla); max-width: 44em; }

/* Contacto */
.contact { border-top: 1px solid var(--linea); background: radial-gradient(ellipse 60% 70% at 85% 60%, rgba(37,99,255,.14), transparent 70%); }
.contact-in { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr); gap: clamp(32px, 5vw, 80px); align-items: center; }
.contact-title { font-size: clamp(2.3rem, 5vw, 4.4rem) !important; max-width: 12em !important; }
.contact-alt { margin-top: 22px; }
.contact-photo { border-radius: 50%; overflow: hidden; aspect-ratio: 1; max-width: 360px; justify-self: end; width: 100%; box-shadow: 0 0 0 1px var(--linea), 0 0 80px rgba(37,99,255,.25); }
.contact-photo img { width: 100%; height: 100%; object-fit: cover; }

/* Footer */
.foot { border-top: 1px solid var(--linea); padding: 56px 0 28px; position: relative; z-index: 2; background: var(--negro); }
.foot-in { display: grid; grid-template-columns: 1.4fr 1fr auto; gap: 32px; align-items: start; }
.foot-tag { margin-top: 12px; color: var(--niebla); }
.foot-links { display: grid; gap: 10px; }
.foot-links a { color: var(--niebla); text-decoration: none; }
.foot-links a:hover { color: var(--tiza); }
.foot-legal { margin-top: 48px; color: #6c717b; font-size: .88rem; }

/* 404 */
.nf { min-height: 70vh; display: flex; align-items: center; }
.nf-in { display: grid; gap: 48px; padding-block: 80px; }
.nf-block h1 { font-size: clamp(1.8rem, 3.6vw, 2.8rem); }
.nf-block p { color: var(--niebla); margin: 12px 0 20px; }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .menu { display: none; }
  .hero-copy { padding: 56px 0 72px; }
}
@media (max-width: 860px) {
  .hero-in { grid-template-columns: 1fr; min-height: 0; }
  .hero-copy { padding: 56px 0 8px; }
  .hero-photo { margin: 0 calc(var(--gut) * -1); max-height: 640px; overflow: hidden; }
  .hero-photo img { -webkit-mask-image: linear-gradient(to bottom, transparent 0, #000 16%, #000 76%, transparent 100%); mask-image: linear-gradient(to bottom, transparent 0, #000 16%, #000 76%, transparent 100%); -webkit-mask-composite: source-over; mask-composite: add; height: auto; }
  .split, .case, .case-row, .process, .about-in, .contact-in { grid-template-columns: 1fr; }
  .split-side { position: static; }
  .side-img { aspect-ratio: 16 / 11; max-width: 640px; }
  .process-img, .about-img { aspect-ratio: 4 / 3; max-width: 640px; }
  .contact-photo { justify-self: start; max-width: 220px; }
  .foot-in { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  :root { --gut: 34px; }
  .top-in { gap: 10px; height: 64px; }
  .top .logo { font-size: 1.15rem; }
  .top .btn-sm { display: none; }
  .lang a { min-width: 40px; min-height: 36px; }
  .rail-sphere { width: 26px; height: 26px; top: -13px; left: -13px; box-shadow: 0 0 24px rgba(37,99,255,.5); }
  .steps, .why-grid { grid-template-columns: 1fr; }
  .actions .btn { width: 100%; }
  .qa summary { font-size: 1.05rem; }
}

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