/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  --bg: #0a0a0d;
  --bg-2: #131318;
  --bg-3: #1a1a21;
  --ink: #f5f5f7;
  --ink-soft: rgba(245, 245, 247, 0.78);
  --mute: #8f8f9a;
  --accent: #ff2f6e;
  --accent-soft: rgba(255, 47, 110, 0.16);
  --accent-2: #34d6f0;
  --accent-2-soft: rgba(52, 214, 240, 0.16);
  --line: rgba(245, 245, 247, 0.12);
  --line-soft: rgba(245, 245, 247, 0.06);

  --display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);

  --container: 1200px;
  --nav-h: 84px;
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html {
  -webkit-text-size-adjust: 100%;
  tab-size: 2;
  overflow-x: clip;
  scroll-behavior: smooth;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  overscroll-behavior-y: none;
}
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1, h2, h3, h4 { font-family: var(--display); text-wrap: balance; line-height: 1.05; letter-spacing: -0.01em; font-weight: 600; }
ul { list-style: none; padding: 0; }
::selection { background: var(--accent); color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 3px;
  border-radius: 4px;
}

/* =============================================================
   3. Utilities
   ============================================================= */
.container { max-width: var(--container); margin-inline: auto; padding-inline: 1.5rem; }
@media (min-width: 720px) { .container { padding-inline: 2.5rem; } }

.skip-link {
  position: fixed; top: -100px; left: 1rem;
  padding: .7rem 1.2rem; background: var(--ink); color: var(--bg);
  z-index: 9999; border-radius: 8px; font-weight: 600;
  transition: top .2s var(--ease-out);
}
.skip-link:focus { top: 1rem; }

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 1rem;
}
.section-kicker::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.section-title {
  font-size: clamp(2rem, 4.2vw, 3.4rem);
  max-width: 18ch;
}
.section-title em {
  font-style: normal;
  background: linear-gradient(95deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.grain {
  position: fixed; inset: 0; z-index: 1;
  opacity: .05; mix-blend-mode: overlay; pointer-events: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* =============================================================
   4. Buttons
   ============================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: 1rem 1.8rem;
  border-radius: 100px;
  font-weight: 600;
  font-size: .95rem;
  transition: transform .35s var(--ease-out), background .35s var(--ease-out), color .35s var(--ease-out), box-shadow .35s var(--ease-out);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(95deg, var(--accent), var(--accent-2));
  color: #0a0a0d;
}
.btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 12px 30px -10px var(--accent-soft);
}
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}
.btn-ghost:hover {
  border-color: var(--accent-2);
  color: var(--accent-2);
}

/* =============================================================
   5. Nav
   ============================================================= */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.4rem 1.5rem;
  height: var(--nav-h);
  transition: background .4s var(--ease-out), border-color .4s var(--ease-out), padding .4s var(--ease-out);
  border-bottom: 1px solid transparent;
}
@media (min-width: 720px) { .nav { padding: 1.4rem 2.5rem; } }
.nav.is-scrolled {
  background: rgba(10, 10, 13, 0.82);
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  border-bottom-color: var(--line);
}
.nav-logo {
  display: flex; align-items: center; gap: .6rem;
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: .02em;
}
.nav-logo img { width: 36px; height: 36px; border-radius: 50%; }
.nav-links { display: none; align-items: center; gap: 2rem; }
@media (min-width: 960px) { .nav-links { display: flex; } }
.nav-links a {
  position: relative;
  font-size: .92rem;
  font-weight: 500;
  color: var(--ink-soft);
  padding-block: .3rem;
  transition: color .3s var(--ease-out);
}
.nav-links a::after {
  content: "";
  position: absolute; left: 0; right: 100%; bottom: 0;
  height: 1px;
  background: var(--accent-2);
  transition: right .35s var(--ease-out);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { right: 0; }
.nav-links .nav-cta {
  padding: .6rem 1.3rem;
  border-radius: 100px;
  background: var(--ink);
  color: var(--bg);
  font-weight: 600;
}
.nav-links .nav-cta::after { display: none; }
.nav-links .nav-cta:hover { background: var(--accent-2); color: var(--bg); }

.nav-burger {
  display: flex; flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px;
  padding: 0; align-items: center;
}
@media (min-width: 960px) { .nav-burger { display: none; } }
.nav-burger span { width: 22px; height: 2px; background: var(--ink); transition: transform .3s var(--ease-out), opacity .3s var(--ease-out); }
.nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile {
  position: fixed; inset: var(--nav-h) 0 0 0; z-index: 99;
  background: var(--bg);
  display: flex; flex-direction: column;
  padding: 2rem 1.5rem;
  gap: 1.5rem;
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s var(--ease-out), transform .3s var(--ease-out);
}
.nav-mobile.is-open { opacity: 1; transform: translateY(0); pointer-events: auto; }
@media (min-width: 960px) { .nav-mobile { display: none; } }
.nav-mobile a { font-family: var(--display); font-size: 1.6rem; font-weight: 600; }
.nav-mobile a.nav-cta { color: var(--accent-2); }

/* =============================================================
   6. Hero
   ============================================================= */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex; align-items: center;
  padding-top: var(--nav-h);
  overflow: clip;
}
.hero-gradient {
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(circle 620px at var(--mx, 30%) var(--my, 30%), var(--accent) 0%, transparent 60%),
    radial-gradient(circle 700px at calc(var(--mx, 70%) + 10%) calc(var(--my, 70%) - 10%), var(--accent-2) 0%, transparent 60%),
    var(--bg);
  opacity: .32;
  filter: blur(60px) saturate(140%);
}
.hero-inner {
  position: relative;
  width: 100%;
  padding-block: 4rem 3rem;
}
.kicker {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-size: .85rem;
  font-weight: 500;
  letter-spacing: .04em;
  color: var(--mute);
  margin-bottom: 1.6rem;
}
.kicker::before {
  content: "";
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.hero-title {
  font-size: clamp(2.6rem, 9vw, 6.6rem);
  max-width: 16ch;
  margin-bottom: 1.8rem;
}
.hero-title em {
  font-style: normal;
  background: linear-gradient(95deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  color: var(--ink-soft);
  max-width: 46ch;
  margin-bottom: 2.6rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }

/* =============================================================
   7. Tension (problem/context) section
   ============================================================= */
.tension { padding-block: 3rem 5rem; border-bottom: 1px solid var(--line-soft); }
.tension-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) { .tension-grid { grid-template-columns: 1fr 1fr; gap: 3rem; } }
.tension-label {
  font-family: var(--display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1.2rem;
  color: var(--mute);
}
.tension-list { display: flex; flex-direction: column; gap: .7rem; }
.tension-list li {
  font-size: 1.15rem;
  padding-left: 1.6rem;
  position: relative;
}
.tension-list--need li { color: var(--ink); }
.tension-list--need li::before { content: "+"; position: absolute; left: 0; color: var(--accent-2); font-weight: 700; }
.tension-list--get li { color: var(--mute); }
.tension-list--get li::before { content: "–"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

/* =============================================================
   8. About / Quiénes somos
   ============================================================= */
.about { padding-block: 6rem; border-bottom: 1px solid var(--line-soft); }
.about-title { font-size: clamp(1.8rem, 3.6vw, 3rem); max-width: 22ch; margin-bottom: 1.6rem; }
.about-title em {
  font-style: normal;
  background: linear-gradient(95deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.about-body { font-size: 1.1rem; color: var(--ink-soft); max-width: 62ch; }

/* =============================================================
   9. Services
   ============================================================= */
.services { padding-block: 6rem; border-bottom: 1px solid var(--line-soft); }
.services > .container:first-child { margin-bottom: 3rem; }
.services-list { display: flex; flex-direction: column; }
.service-row {
  border-top: 1px solid var(--line);
}
.service-row:last-child { border-bottom: 1px solid var(--line); }
.service-summary {
  list-style: none;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.2rem;
  padding: 1.6rem 1.5rem;
  cursor: pointer;
  transition: background .3s var(--ease-out);
}
@media (min-width: 720px) { .service-summary { padding: 2rem 2.5rem; gap: 2rem; } }
.service-summary::-webkit-details-marker { display: none; }
.service-summary:hover { background: var(--bg-2); }
.service-num {
  font-family: var(--display);
  font-size: 1rem;
  color: var(--mute);
  font-variant-numeric: tabular-nums;
}
.service-heading { display: flex; flex-direction: column; gap: .35rem; min-width: 0; }
.service-name { font-size: clamp(1.3rem, 2.6vw, 2rem); }
.service-short { color: var(--mute); font-size: .95rem; max-width: 52ch; }
.service-toggle {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  position: relative;
  transition: border-color .3s var(--ease-out), transform .4s var(--ease-out);
}
.service-toggle::before, .service-toggle::after {
  content: "";
  position: absolute;
  background: var(--ink);
  transition: transform .3s var(--ease-out), opacity .3s var(--ease-out);
}
.service-toggle::before { width: 14px; height: 1.5px; }
.service-toggle::after { width: 1.5px; height: 14px; }
details[open] .service-toggle { transform: rotate(45deg); border-color: var(--accent-2); }
.service-row:hover .service-toggle { border-color: var(--accent-2); }
.service-body {
  display: none;
  padding: 0 1.5rem 2.4rem;
  grid-template-columns: 1fr;
  gap: 1.6rem;
}
details[open] > .service-body {
  display: grid;
  animation: serviceBodyIn .4s var(--ease-out);
}
@media (min-width: 720px) {
  .service-body { padding: 0 2.5rem 3rem 5.5rem; grid-template-columns: 1.1fr .9fr; gap: 2.5rem; align-items: center; }
}
@keyframes serviceBodyIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: none; }
}
.service-long { font-size: 1.05rem; color: var(--ink-soft); margin-bottom: 1.4rem; max-width: 50ch; }
.service-tags { display: flex; flex-wrap: wrap; gap: .6rem; }
.service-tags span {
  font-size: .82rem;
  padding: .45rem .9rem;
  border-radius: 100px;
  border: 1px solid var(--line);
  color: var(--ink-soft);
}
.service-photo-wrap {
  border-radius: 20px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--line);
}
.service-photo-wrap img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .6s var(--ease-out);
}
.service-row:hover .service-photo-wrap img,
details[open] .service-photo-wrap img { transform: scale(1.06); }

/* =============================================================
   10. Work / portfolio
   ============================================================= */
.work { padding-block: 6rem; border-bottom: 1px solid var(--line-soft); }
.work > .container:first-child { margin-bottom: 2.5rem; }
.work-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.5rem;
}
@media (min-width: 720px) { .work-grid { grid-template-columns: 1fr 1fr; padding-inline: 2.5rem; gap: 1.6rem; } }
.work-card {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--line);
}
.work-card img,
.work-card video {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .7s var(--ease-out), filter .5s var(--ease-out);
  filter: saturate(0.9);
}
.work-card:hover img,
.work-card:hover video { transform: scale(1.08); filter: saturate(1.1); }
.work-caption {
  position: absolute; inset-inline: 0; bottom: 0;
  padding: 1.6rem;
  background: linear-gradient(0deg, rgba(10,10,13,.92) 10%, transparent 100%);
  pointer-events: none;
}
.work-caption .work-name { font-family: var(--display); font-size: 1.15rem; font-weight: 600; }
.work-caption .work-category { font-size: .82rem; color: var(--mute); }

/* Video work-cards — poster shows by default, plays on click */
.work-card--video .work-play {
  position: absolute; inset: 0; margin: auto;
  width: 64px; height: 64px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(10, 10, 13, 0.55);
  border: 1px solid rgba(245, 245, 247, 0.35);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: var(--ink);
  transition: transform .35s var(--ease-out), background .35s var(--ease-out), opacity .35s var(--ease-out);
}
.work-card--video .work-play svg { width: 22px; height: 22px; margin-left: 3px; }
.work-card--video:hover .work-play { transform: scale(1.08); background: var(--accent); border-color: var(--accent); }
.work-card--video.is-playing .work-play,
.work-card--video.is-playing .work-caption { opacity: 0; pointer-events: none; }
.work-card--video video { cursor: pointer; }

/* =============================================================
   11. Why us
   ============================================================= */
.why { padding-block: 6rem; border-bottom: 1px solid var(--line-soft); }
.why-grid {
  margin-top: 3rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
@media (min-width: 720px) { .why-grid { grid-template-columns: 1fr 1fr; } }
.why-item {
  padding: 2.2rem 0;
  border-top: 1px solid var(--line);
}
@media (min-width: 720px) {
  .why-item { padding: 2.6rem 2.5rem 2.6rem 0; }
  .why-item:nth-child(even) { padding-left: 2.5rem; padding-right: 0; border-left: 1px solid var(--line); }
}
.why-item-num {
  font-family: var(--display);
  color: var(--accent-2);
  font-size: .9rem;
  display: block;
  margin-bottom: .8rem;
}
.why-item h3 { font-size: 1.4rem; margin-bottom: .7rem; }
.why-item p { color: var(--ink-soft); max-width: 42ch; }

/* =============================================================
   12. Contact / CTA
   ============================================================= */
.cta { padding-block: 6rem 4rem; }
.cta-inner { text-align: left; }
.cta-title { font-size: clamp(2rem, 4.6vw, 3.6rem); max-width: 20ch; margin-bottom: 2.2rem; }
.cta-title em {
  font-style: normal;
  background: linear-gradient(95deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.cta-email {
  display: inline-block;
  font-family: var(--display);
  font-size: clamp(1.6rem, 5vw, 3rem);
  font-weight: 600;
  position: relative;
  margin-bottom: 3.5rem;
  padding-bottom: .4rem;
  background-image: linear-gradient(var(--accent-2), var(--accent-2));
  background-position: 0 100%;
  background-repeat: no-repeat;
  background-size: 0% 2px;
  transition: background-size .45s var(--ease-out), color .3s var(--ease-out);
}
.cta-email:hover { background-size: 100% 2px; color: var(--accent-2); }

.cta-form {
  max-width: 640px;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}
.form-row { display: grid; grid-template-columns: 1fr; gap: 1.4rem; }
@media (min-width: 600px) { .form-row { grid-template-columns: 1fr 1fr; } }
.cta-form label { display: flex; flex-direction: column; gap: .5rem; font-size: .9rem; color: var(--mute); }
.cta-form input, .cta-form textarea {
  font: inherit;
  color: var(--ink);
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: .9rem 1.1rem;
  resize: vertical;
  transition: border-color .3s var(--ease-out);
}
.cta-form input:focus, .cta-form textarea:focus { border-color: var(--accent-2); outline: none; }
.cta-form .btn { align-self: flex-start; }

/* =============================================================
   13. Footer
   ============================================================= */
.footer { border-top: 1px solid var(--line); padding-block: 2.6rem; }
.footer-inner {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem;
}
.footer-logo { width: 32px; height: 32px; border-radius: 50%; }
.footer-inner p { color: var(--mute); font-size: .85rem; }
.footer-inner a { font-size: .85rem; color: var(--mute); transition: color .3s var(--ease-out); }
.footer-inner a:hover { color: var(--accent-2); }

/* =============================================================
   14. Reveal-on-scroll
   ============================================================= */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease-out), transform .8s var(--ease-out); }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-split] { opacity: 1; transform: none; }

/* =============================================================
   15. Reduced motion — only intrusive effects
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  .hero-gradient { transition: none; }
}