/* ============ Guambia Software ============ */

:root {
  --bg: #E7EFFC;
  --bg-alt: #D3E2F9;
  --band-paper: #F7FAFF;
  --paper: #FFFFFF;
  --ink: #0D0F14;
  --text: #2B2F38;
  --muted: #465069;
  --line: #C2D4F0;
  --line-strong: #9DB6E0;
  --blue: #1B4FD1;
  --blue-soft: #C6D9F8;
  --red: #B03A3F;
  --ok: #1E8A5A;
  --btn-bg: #1B4FD1;
  --btn-fg: #FFFFFF;
  --chrome-bg: #0F2A5F;
  --chrome-fg: #FFFFFF;
  --chrome-muted: rgba(255, 255, 255, .74);
  --nav-cta-bg: #FFFFFF;
  --nav-cta-fg: #0F2A5F;
  --nav-icon-bg: rgba(255, 255, 255, .12);
  --nav-icon-bd: rgba(255, 255, 255, .38);
  --pad: clamp(16px, 5vw, 56px);
  --radius: 14px;
  --f-ink: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --f-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --f-label: 'Instrument Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --shadow-tint: 20, 40, 90;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #09090B; --bg-alt: #0F0F12; --paper: #141417; --ink: #F4F4F5; --text: #D2D3D8; --muted: #8B8D96;
    --line: #25252A; --line-strong: #3A3A41; --blue: #7C9DDB; --blue-soft: #181E2D; --red: #D9777B; --ok: #5FB88A; --shadow-tint: 0, 0, 0; color-scheme: dark;
    --btn-bg: #F4F4F5; --btn-fg: #09090B; --band-paper: #0B0B0E;
    --chrome-bg: #0C0C0F; --chrome-fg: #F4F4F5; --chrome-muted: #9A9CA6; --nav-cta-bg: #F4F4F5; --nav-cta-fg: #09090B; --nav-icon-bg: #141417; --nav-icon-bd: #3A3A41;
  }
}
:root[data-theme="dark"] {
  --bg: #09090B; --bg-alt: #0F0F12; --paper: #141417; --ink: #F4F4F5; --text: #D2D3D8; --muted: #8B8D96;
  --line: #25252A; --line-strong: #3A3A41; --blue: #7C9DDB; --blue-soft: #181E2D; --red: #D9777B; --ok: #5FB88A; --shadow-tint: 0, 0, 0; color-scheme: dark;
  --btn-bg: #F4F4F5; --btn-fg: #09090B; --band-paper: #0B0B0E;
  --chrome-bg: #0C0C0F; --chrome-fg: #F4F4F5; --chrome-muted: #9A9CA6; --nav-cta-bg: #F4F4F5; --nav-cta-fg: #09090B; --nav-icon-bg: #141417; --nav-icon-bd: #3A3A41;
}

/* Progreso de "aparición" de cada elemento (0 a 1) */
@property --p {
  syntax: '<number>';
  inherits: true;
  initial-value: 0;
}
:root { --accent: var(--blue); }

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 400 17px/1.65 var(--f-body);
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
  transition: background-color .3s, color .3s;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1em; }
.skip { position: absolute; left: -999px; top: 8px; }
.skip:focus { left: 8px; z-index: 999; background: var(--paper); padding: 8px 12px; border: 1px solid var(--ink); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

::selection { background: var(--accent); color: var(--bg); }
::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 99px; border: 3px solid var(--bg); }
* { scrollbar-color: var(--line-strong) var(--bg); scrollbar-width: thin; }

/* ---------- Barra de progreso de scroll ---------- */
.progress-bar {
  position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 60;
  transform-origin: left; transform: scaleX(0);
  background: var(--accent);
  pointer-events: none;
}
@supports (animation-timeline: scroll()) {
  .progress-bar { animation: progress-grow linear both; animation-timeline: scroll(root); }
}
@keyframes progress-grow { from { transform: scaleX(0); } to { transform: scaleX(1); } }

/* ---------- Botón de volver arriba ---------- */
.to-top {
  position: fixed; right: clamp(16px, 4vw, 28px); bottom: clamp(16px, 4vw, 28px); z-index: 55;
  opacity: 0; transform: translateY(14px); pointer-events: none;
  transition: opacity .3s var(--ease-out), transform .3s var(--ease-out);
}
.to-top.show { opacity: 1; transform: none; pointer-events: auto; }
.to-top svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- Botones ---------- */
.ink-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  font: 600 15px/1 var(--f-body); letter-spacing: 0;
  color: var(--ink); background: var(--paper); cursor: pointer; user-select: none; -webkit-tap-highlight-color: transparent;
  padding: 14px 22px; border: 1px solid var(--line-strong); border-radius: 10px;
  box-shadow: 0 1px 2px rgba(var(--shadow-tint), .08);
  transition: transform .15s ease-out, box-shadow .15s ease-out, background-color .2s, border-color .2s, color .2s;
}
.ink-btn:hover { transform: translateY(-2px); border-color: var(--ink); box-shadow: 0 8px 18px -8px rgba(var(--shadow-tint), .35); }
.ink-btn:active { transform: translateY(1px) scale(.98); box-shadow: inset 0 2px 4px rgba(var(--shadow-tint), .25); transition-duration: .05s; }
.ink-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.ink-btn--blue, .ink-btn--red { background: var(--btn-bg); color: var(--btn-fg); border-color: var(--btn-bg); }
.ink-btn--blue:hover, .ink-btn--red:hover { background: color-mix(in srgb, var(--btn-bg) 85%, #000); border-color: transparent; }
.ink-btn--icon { width: 40px; height: 40px; padding: 0; font: 17px/1 system-ui, sans-serif; border-radius: 10px; }

.ink-link { font-weight: 600; border-bottom: 1px solid var(--accent); padding-bottom: 1px; transition: color .2s, border-color .2s; }
.ink-link:hover { color: var(--accent); }


/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 12px var(--pad); background: var(--chrome-bg);
  border-bottom: 1px solid var(--line);
  transition: padding .3s var(--ease-out), background-color .3s, box-shadow .3s;
  overflow-anchor: none;
}
.nav.nav--scrolled { box-shadow: 0 10px 24px -20px rgba(var(--shadow-tint), .5); }
.nav--over:not(.nav--scrolled) { background: transparent; border-bottom-color: transparent; }
.nav--over ~ main .hero { margin-top: -65px; padding-top: calc(65px + 3svh); }
.nav__logo { transition: opacity .3s var(--ease-out), transform .3s var(--ease-out); }
.nav__logo img { height: 40px; width: auto; transition: height .3s var(--ease-out); }
.nav--logo-hidden .nav__logo { opacity: 0; transform: translateY(-6px); pointer-events: none; }
.nav__links { display: flex; gap: clamp(12px, 2vw, 30px); font: 500 15px var(--f-ink); color: var(--chrome-muted); }
.nav__links a { position: relative; padding: 6px 0; transition: color .2s; }
.nav__links a::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 1.5px; border-radius: 2px;
  background: var(--chrome-fg); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease-out);
}
.nav__links a:hover, .nav__links a.active { color: var(--chrome-fg); }
.nav__links a:hover::after, .nav__links a.active::after { transform: scaleX(1); }
.nav__actions { display: flex; gap: 10px; }
.burger { display: none; }
.nav__cta { padding: 11px 18px; font-size: 14px; white-space: nowrap; }
.nav__coin { width: 46px; height: 46px; flex: none; align-self: center; margin-right: -4px; pointer-events: auto; }
.nav__coin svg { display: block; }
.nav .ink-btn--blue { background: var(--nav-cta-bg); color: var(--nav-cta-fg); border-color: transparent; }
.nav .ink-btn--blue:hover { background: color-mix(in srgb, var(--nav-cta-bg) 88%, #000); }
.nav .ink-btn--icon { background: var(--nav-icon-bg); color: var(--chrome-fg); border-color: var(--nav-icon-bd); }
.nav .ink-btn--icon:hover { border-color: var(--chrome-fg); }

/* ---------- Hero ---------- */
.hero { position: relative; isolation: isolate; overflow: hidden; text-align: center; justify-content: center; display: flex; align-items: center; padding: 40px var(--pad) 54px; min-height: 100vh; min-height: 100svh; border-bottom: 1px solid var(--line-strong); }
.hero__bg {
  position: absolute; inset: -30px; z-index: -2;
  background: url('assets/header.jpg') center 58% / cover no-repeat;
  will-change: transform;
}
.hero::before {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background: radial-gradient(ellipse 90% 80% at 50% 42%, rgba(8, 24, 64, .2) 0%, rgba(5, 14, 40, .62) 100%), linear-gradient(180deg, rgba(5, 14, 40, .5) 0%, transparent 28%), linear-gradient(0deg, rgba(5, 14, 40, .45) 0%, transparent 30%);
}
.hero__inner { max-width: 900px; margin-inline: auto; position: relative; z-index: 1; will-change: transform, opacity; }
.hero__title { margin: 0 0 clamp(20px, 4.5svh, 34px); line-height: 0; }
.hero__title img { width: 100%; max-width: min(100%, 340px, 40svh); height: auto; margin-inline: auto; rotate: -6deg; cursor: pointer; -webkit-tap-highlight-color: transparent; }
.hero__title img.spin { animation: spin3d .9s cubic-bezier(.45, .05, .25, 1); }
@keyframes spin3d {
  from { transform: perspective(900px) rotateY(0deg); }
  to { transform: perspective(900px) rotateY(360deg); }
}
.hero__headline {
  font: 700 clamp(28px, min(4.6vw, 6.4svh), 52px)/1.08 var(--f-ink); letter-spacing: -.035em; color: #fff; margin: 0 0 22px;
}
.hero__lead {
  max-width: 680px; margin: 0 auto 28px; padding: 22px 30px; text-align: center;
  background: var(--paper); border: 3px solid #fff; border-radius: 18px;
  box-shadow: 0 0 0 8px rgba(255, 255, 255, .22), 0 28px 50px -18px rgba(0, 0, 0, .65);
}
.hero__lead p { margin: 0; font-size: clamp(17px, 1.7vw, 20px); line-height: 1.5; color: var(--ink); }
.hero__lead .hero__price { margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--line-strong); font-size: clamp(16px, 1.5vw, 18px); color: var(--text); }
.hero__lead .hero__price strong { color: var(--blue); font-weight: 700; }
.hero__ctas { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 14px 18px; }
.hero__ctas .ink-btn { font-size: 18px; padding: 19px 38px; border-radius: 12px; }
.hero__ctas .ink-btn:not(.ink-btn--blue):not(.ink-btn--red) { background: #fff; border-color: #fff; color: #0F2A5F; }
.hero__ctas .ink-btn--blue { border-color: rgba(255, 255, 255, .55); }
.contact__box .hero__ctas .ink-btn--red { border-color: var(--btn-bg); }
.contact__box .hero__ctas { justify-content: flex-start; }

/* ---------- Secciones ---------- */
.section { position: relative; padding: clamp(72px, 10vw, 120px) var(--pad); max-width: 1180px; margin: 0 auto; }
.section--band { background: var(--bg-alt); box-shadow: 0 0 0 100vmax var(--bg-alt); clip-path: inset(0 -100vmax); }
.section--paper { background: var(--band-paper); box-shadow: 0 0 0 100vmax var(--band-paper); clip-path: inset(0 -100vmax); }
.section--alt { max-width: none; background: var(--bg-alt); border-block: 1px solid var(--line); }
.title {
  position: relative; display: block; font: 700 clamp(30px, 4.2vw, 46px)/1.1 var(--f-ink);
  letter-spacing: -.03em; color: var(--ink); margin: 0 0 18px;
}
.intro { font-size: 18px; max-width: 58ch; color: var(--muted); margin-bottom: 44px; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px;
  transition: transform .3s var(--ease-out), box-shadow .3s var(--ease-out), border-color .3s;
}
.card:hover { transform: translateY(-3px); border-color: var(--line-strong); box-shadow: 0 16px 32px -20px rgba(var(--shadow-tint), .4); }
.card h3 { font: 600 22px/1.2 var(--f-ink); letter-spacing: -.02em; color: var(--ink); margin: 0 0 10px; }
.card p:last-child { margin: 0; color: var(--text); }

/* Proyectos */
.carousel { position: relative; }
.projects { display: flex; gap: 20px; overflow-x: auto; scroll-snap-type: x mandatory; scroll-behavior: smooth; padding: 4px 2px 20px; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
.projects::-webkit-scrollbar { display: none; }
.project { flex: 0 0 calc((100% - 40px) / 3); scroll-snap-align: start; }
.carousel__controls { display: flex; justify-content: flex-end; gap: 10px; margin-top: 4px; }
.carousel__controls .ink-btn:disabled { opacity: .4; cursor: default; transform: none; box-shadow: none; }
.project {
  display: block; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  transition: transform .3s var(--ease-out), box-shadow .3s var(--ease-out), border-color .3s;
}
.project:hover { transform: translateY(-3px); border-color: var(--line-strong); box-shadow: 0 16px 32px -20px rgba(var(--shadow-tint), .4); }
.project__shot { aspect-ratio: 800 / 520; overflow: hidden; border-bottom: 1px solid var(--line); background: var(--bg-alt); }
.project__shot img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .5s var(--ease-out); }
.project:hover .project__shot img { transform: scale(1.04); }
.project__shot--logo { display: grid; place-items: center; background: #fff; padding: 30px; }
.project__shot--logo img { width: 100%; height: 100%; object-fit: contain; }
.project__shot--placeholder { display: grid; place-items: center; }
.project h3, .project > p { padding-inline: 22px; }
.project h3 { font: 600 20px/1.2 var(--f-ink); letter-spacing: -.02em; color: var(--ink); margin: 20px 0 8px; }
.project > p:last-child { margin: 0 0 22px; color: var(--text); font-size: 15.5px; }
.project--soon h3, .project--soon > p { opacity: .7; }

.cta-band {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px 32px;
  margin-top: 28px; padding: 28px 32px; background: var(--btn-bg); border-radius: var(--radius);
}
.cta-band p { flex: 1 1 360px; margin: 0; font: 600 clamp(20px, 2.4vw, 26px)/1.25 var(--f-ink); letter-spacing: -.02em; color: var(--btn-fg); }
.cta-band .ink-btn { flex: none; background: var(--paper); color: var(--ink); border-color: transparent; font-size: 16px; padding: 16px 28px; }
.cta-band .ink-btn:hover { background: var(--bg-alt); border-color: transparent; }

#servicios > .title, #planes > .title, #proyectos > .title, #equipo > .title { text-align: center; }
#servicios > .intro, #planes > .intro, #proyectos > .intro { text-align: center; margin-inline: auto; }

/* ---------- Ventajas ---------- */
.benefits { display: grid; grid-template-columns: 5fr 7fr; gap: clamp(36px, 6vw, 84px); align-items: start; }
.benefits__intro { position: sticky; top: 110px; }
.benefits__intro .intro { margin-bottom: 28px; }
.benefits__list { list-style: none; margin: 0; padding: 0; }
.benefits__list li { padding: 26px 0; border-top: 1px solid var(--line-strong); }
.benefits__list li:last-child { border-bottom: 1px solid var(--line-strong); }
.benefits__list h3 { font: 600 22px/1.2 var(--f-ink); letter-spacing: -.02em; color: var(--ink); margin: 0 0 8px; }
.benefits__list p { margin: 0; color: var(--text); max-width: 52ch; }

/* ---------- Planes ---------- */
.plans__note { text-align: center; margin: -22px auto 36px; font-weight: 600; color: var(--ink); max-width: 56ch; }
.plans { display: grid; grid-template-columns: repeat(3, 1fr); column-gap: 20px; row-gap: 0; align-items: stretch; }
.plan {
  display: grid; grid-row: span 18; grid-template-rows: subgrid; row-gap: 0;
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 28px 28px;
  transition: transform .3s var(--ease-out), box-shadow .3s var(--ease-out), border-color .3s;
}
.plan:hover { transform: translateY(-3px); border-color: var(--line-strong); box-shadow: 0 16px 32px -20px rgba(var(--shadow-tint), .4); }
.plan h3 { font: 600 20px/1.2 var(--f-ink); letter-spacing: -.02em; color: var(--ink); margin: 0 0 6px; }
.plan__price { font: 700 40px/1.1 var(--f-ink); letter-spacing: -.035em; color: var(--ink); margin: 6px 0 14px; }
.plan__price small { display: block; font: 500 14px/1.3 var(--f-body); letter-spacing: 0; color: var(--muted); margin: 4px 0 0; }
.plan__for { font-size: 15px; color: var(--muted); margin-bottom: 18px; }
.plan ul { list-style: none; margin: 0 0 26px; padding: 18px 0 0; border-top: 1px solid var(--line); display: grid; grid-row: span 14; grid-template-rows: subgrid; row-gap: 10px; align-items: start; }
.plan li { position: relative; display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding-left: 26px; font-size: 15px; line-height: 1.4; color: var(--text); }
.plan li .v { flex: none; font-weight: 600; color: var(--ink); font-size: 14px; }
.plan li.off { color: var(--muted); opacity: .7; }
.plan li.off::before { content: '✕'; width: auto; height: auto; border: 0; transform: none; left: 1px; top: 0; font-size: 13px; color: var(--muted); }
.plan li::before {
  content: ''; position: absolute; left: 2px; top: .38em; width: 6px; height: 10px;
  border: solid var(--ok); border-width: 0 2px 2px 0; transform: rotate(45deg);
}
.plan .ink-btn { width: 100%; }
@media (min-width: 1021px) { .plan__for { min-height: 6.2em; } }
.hosting { display: grid; grid-template-columns: 1fr 2fr; gap: 20px 40px; margin-top: 28px; padding: 28px 32px; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); }
.hosting h3 { font: 600 22px/1.2 var(--f-ink); letter-spacing: -.02em; color: var(--ink); margin: 0; }
.hosting p { margin: 0 0 .8em; }
.hosting p:last-child { margin: 0; font-weight: 600; color: var(--ink); }


/* ---------- Nosotros ---------- */
.about { display: grid; grid-template-columns: 1.2fr 1fr; gap: 50px; align-items: center; max-width: 1180px; margin: 0 auto; }
.about p { max-width: 52ch; }
.values { list-style: none; padding: 0; margin: 28px 0 0; display: flex; flex-wrap: wrap; gap: 10px; }
.values li {
  padding: 8px 16px; font: 600 14px/1.2 var(--f-ink); color: var(--ink);
  background: var(--paper); border: 1px solid var(--line-strong); border-radius: 99px;
  transition: transform .25s var(--ease-out), border-color .25s;
}
.values li:hover { transform: translateY(-2px); border-color: var(--ink); }
.values .values__main { background: var(--btn-bg); color: var(--btn-fg); border-color: var(--btn-bg); }
.map { margin: 0; text-align: center; }
.map svg { width: 100%; max-width: 320px; margin: 0 auto; overflow: visible; }
.map__fill { fill: var(--blue-soft); }
.map__line { fill: none; stroke: var(--ink); stroke-width: 1.8; stroke-linejoin: round; stroke-dasharray: 700; stroke-dashoffset: 700; }
.map__dot { fill: var(--red); stroke: var(--paper); stroke-width: 2; }
.map figcaption { font: 500 15px var(--f-label); color: var(--muted); margin-top: 10px; }

/* ---------- Equipo ---------- */
.team { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 36px; }
.person { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.person__head { display: flex; align-items: center; gap: 18px; margin-bottom: 18px; }
.person h3 { font: 600 24px/1.1 var(--f-ink); letter-spacing: -.02em; color: var(--ink); margin: 0; }
.person__role { font: 500 15px var(--f-label); color: var(--muted); margin: 6px 0 0; }
.person > p { font-size: 16px; }
.avatar {
  width: 88px; height: 88px; flex: none; object-fit: cover; object-position: center 20%;
  border: 1px solid var(--line-strong); border-radius: 50%; background: var(--bg-alt);
}

/* ---------- Contacto ---------- */
.contact__box {
  background: var(--paper); border: 1px solid var(--line); border-radius: 20px;
  padding: clamp(32px, 6vw, 64px);
}
.contact__box { background: var(--chrome-bg); border-color: transparent; }
.contact__box .title { margin-bottom: 14px; color: var(--chrome-fg); }
.contact__box .ink-link { color: var(--chrome-fg); border-color: var(--chrome-muted); }
.contact__box .hero__ctas .ink-btn--red { background: var(--nav-cta-bg); color: var(--nav-cta-fg); border-color: transparent; }
.contact__box p { font-size: 18px; color: var(--chrome-muted); max-width: 44ch; margin-bottom: 28px; }

/* ---------- Footer ---------- */
.footer { position: relative; padding: 50px var(--pad) 30px; background: var(--chrome-bg); color: var(--chrome-fg); }
.footer__cols { max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 30px; }
.footer__h { font: 600 15px var(--f-ink); color: var(--chrome-fg); margin: 0 0 12px; }
.footer__cols a { display: block; width: fit-content; margin-bottom: 8px; font-weight: 500; color: var(--chrome-muted); transition: transform .25s var(--ease-out), color .2s; }
.footer__cols a:hover { color: var(--chrome-fg); transform: translateX(4px); }
.footer__logo { height: 56px; width: auto; }
.footer__legal { max-width: 1180px; margin: 40px auto 0; font: 400 14px var(--f-label); color: var(--chrome-muted); }
.footer__legal a { text-decoration: underline; text-underline-offset: 3px; }
.footer__legal a:hover { color: var(--chrome-fg); }

/* ---------- Página legal ---------- */
.legal__body { max-width: 68ch; }
.legal__body h2 { font: 600 22px var(--f-ink); letter-spacing: -.02em; color: var(--ink); margin: 34px 0 10px; }
.legal__body p { font-size: 17px; color: var(--text); }
.legal__back { margin-top: 44px; }

/* ---------- Aparición al bajar / al subir, atada al scroll ----------
   Bajar adelanta la animación, subir la rebobina. En navegadores con
   animation-timeline: view() lo hace el CSS solo; donde no, main.js
   calcula --p a mano en cada scroll. */
.reveal {
  --p: 0;
  opacity: var(--p);
  transform: translateY(calc(24px * (1 - var(--p))));
}
.reveal.flip {
  --rp: 0;
  transform: translateY(calc(30px * (1 - var(--p)))) rotateY(calc(40deg * var(--rp) * (1 - var(--p))));
  transform-origin: 30% 50%;
}
.team, .cards, .plans { perspective: 1600px; }
.team .person.reveal.flip { --rp: -1; }
.team .person:nth-child(2).reveal.flip { --rp: 1; transform-origin: 70% 50%; }
.cards .card:nth-child(odd).reveal.flip { --rp: 1; transform-origin: 70% 50%; }
.cards .card:nth-child(even).reveal.flip { --rp: -1; }
.plans .plan:nth-child(1).reveal.flip { --rp: -1; }
.plans .plan:nth-child(2).reveal.flip { --rp: 1; }
.plans .plan:nth-child(3).reveal.flip { --rp: -1; }

@supports (animation-timeline: view()) {
  .reveal {
    opacity: 1; transform: none;
    animation: reveal-scrub linear backwards; animation-timeline: view(); animation-range: entry 0% cover 38%;
  }
  .reveal.flip { transform: none; animation-name: reveal-flip; }
  @keyframes reveal-scrub {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
  }
  @keyframes reveal-flip {
    from { opacity: 0; transform: translateY(30px) rotateY(calc(40deg * var(--rp))); }
    to { opacity: 1; transform: translateY(0) rotateY(0deg); }
  }
  .map__line { animation: map-draw-scrub linear both; animation-timeline: view(); animation-range: entry 0% cover 38%; }
  @keyframes map-draw-scrub { from { stroke-dashoffset: 700; } to { stroke-dashoffset: 0; } }
}

/* ---------- Responsive ---------- */
@media (max-width: 1020px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .project { flex-basis: calc((100% - 20px) / 2); }
  .plans { grid-template-columns: 1fr; max-width: 560px; margin-inline: auto; }
  .plan { margin-bottom: 20px; }
}
@media (max-width: 860px) {
  .burger { display: inline-flex; }
  .nav__cta { display: none; }
  .nav__coin { display: none; }
  .hero__ctas .ink-btn { font-size: 17px; padding: 18px 30px; }
  .hero__title img { max-width: min(78%, 300px, 38svh); }
  .nav__links {
    position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; gap: 14px;
    padding: 22px var(--pad) 26px; background: var(--chrome-bg); border-bottom: 1px solid var(--line); font-size: 20px;
    opacity: 0; visibility: hidden; transform: translateY(-10px);
    transition: opacity .25s var(--ease-out), transform .25s var(--ease-out), visibility 0s .25s;
  }
  .nav.menu-open .nav__links {
    opacity: 1; visibility: visible; transform: none;
    transition: opacity .25s var(--ease-out), transform .25s var(--ease-out), visibility 0s;
  }
  .cards, .team, .about, .benefits, .hosting { grid-template-columns: 1fr; }
  .project { flex-basis: 84%; }
  .benefits__intro { position: static; }
  .map svg { max-width: 240px; }
  .footer__cols { grid-template-columns: 1fr 1fr; }
  .footer__cols > div:first-child { grid-column: 1 / -1; }

  /* El celular tiene menos GPU: sin parallax ni giro 3D. */
  .reveal.flip { animation-name: reveal-scrub; }
  .team, .cards, .plans { perspective: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal, .reveal.flip { opacity: 1; transform: none; transition: none; animation: none !important; }
  .map__line { stroke-dashoffset: 0; animation: none !important; }
  .hero__title img { animation: none; }
  .card:hover, .project:hover, .plan:hover, .values li:hover, .ink-btn:hover { transform: none; }
  :root { transition: none; }
  .progress-bar { animation: none !important; transform: none !important; }
  .nav__links, .nav__links a, .nav__logo { transition: none !important; }
  .to-top { transition: none !important; }
}