/* experion — landing. DS Electric. Solo para index.html (las legales usan site.css). */

:root {
  --ink-800: #070A18;
  --ink-900: #04060F;
  --ink-700: #0A0E26;
  --ink-border: #2A355F;
  --electric: #2348FF;
  --violet: #7C4DFF;
  --violet-deep: #5A39E6;
  --cyan: #5FD0FF;
  --fog: #A9B2C8;
  --white: #ffffff;
  --grad-signature:
    radial-gradient(120% 90% at 78% 8%, rgba(95,208,255,0.45) 0%, rgba(95,208,255,0) 42%),
    radial-gradient(130% 120% at 12% 0%, rgba(124,77,255,0.55) 0%, rgba(124,77,255,0) 55%),
    linear-gradient(168deg, #2348FF 0%, #4733D6 46%, #16133A 82%, #070A18 100%);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  background: var(--ink-800);
  color: var(--white);
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }

/* ---- grano sutil (overlay turbulence) ---- */
.grain {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  opacity: 0.06; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---- tipografía base ---- */
.eyebrow {
  display: inline-block;
  font-size: 11px; font-weight: 500; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--cyan);
}
.eyebrow--violet { color: #b8a3ff; }
.eyebrow--cyan { color: var(--cyan); }

.wordmark {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600; letter-spacing: -0.02em; font-size: 22px;
  color: var(--white);
}
.wordmark--lg { font-size: clamp(28px, 6vw, 44px); display: block; opacity: 0.92; }

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex; flex-direction: column;
  background: var(--grad-signature);
  padding: 0 24px;
  overflow: hidden;
}
.hero::after { /* viñeta inferior para fundir con el ink */
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 38%;
  background: linear-gradient(180deg, rgba(7,10,24,0) 0%, var(--ink-800) 100%);
  z-index: 1; pointer-events: none;
}

.nav {
  position: relative; z-index: 2;
  display: flex; align-items: center;
  padding: 24px 4px; max-width: 1100px; width: 100%; margin: 0 auto;
}

.hero__inner {
  position: relative; z-index: 2;
  margin: auto 0; max-width: 1100px; width: 100%;
  padding: 0 4px 12vh;
  margin-left: auto; margin-right: auto;
  animation: rise 0.9s cubic-bezier(.2,.7,.2,1) both;
}
.hero__title {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600; letter-spacing: -0.03em; line-height: 1.02;
  font-size: clamp(48px, 12vw, 104px);
  margin: 18px 0 0; text-transform: lowercase;
}
.hero__sub {
  margin-top: 22px; max-width: 30ch;
  font-size: clamp(17px, 2.4vw, 21px); line-height: 1.45;
  color: rgba(255,255,255,0.92);
}
.hero__cta { margin-top: 34px; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.hero__hint { font-size: 12px; letter-spacing: 0.04em; color: rgba(255,255,255,0.62); }

.hero__scroll {
  position: absolute; z-index: 2; bottom: 26px; left: 50%; transform: translateX(-50%);
}
.hero__scroll span {
  display: block; width: 22px; height: 36px; border: 1.5px solid rgba(255,255,255,0.35);
  border-radius: 999px; position: relative;
}
.hero__scroll span::after {
  content: ""; position: absolute; top: 7px; left: 50%; transform: translateX(-50%);
  width: 3px; height: 7px; border-radius: 2px; background: var(--cyan);
  animation: scrolldot 1.6s ease-in-out infinite;
}

/* ============ BOTÓN APP STORE ============ */
.btn-appstore {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 13px 24px; border-radius: 999px;
  background: linear-gradient(135deg, var(--violet-deep), var(--violet));
  color: var(--white); text-decoration: none;
  box-shadow: 0 8px 28px -8px rgba(124,77,255,0.55);
  transition: transform 140ms ease, box-shadow 140ms ease;
  cursor: not-allowed; /* placeholder hasta link real */
  user-select: none;
}
.btn-appstore:hover { transform: translateY(-1px); box-shadow: 0 14px 38px -10px rgba(124,77,255,0.72); }
.btn-appstore__logo { width: 26px; height: 26px; fill: var(--white); flex: none; }
.btn-appstore__txt { display: flex; flex-direction: column; line-height: 1.05; text-align: left; }
.btn-appstore__txt small { font-size: 10px; letter-spacing: 0.04em; opacity: 0.85; text-transform: lowercase; }
.btn-appstore__txt strong { font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: 18px; letter-spacing: -0.01em; }

/* ============ SECCIONES ============ */
.section {
  max-width: 1100px; margin: 0 auto;
  padding: clamp(72px, 12vw, 132px) 24px;
}
.section__title {
  font-family: 'Space Grotesk', sans-serif; font-weight: 600;
  font-size: clamp(30px, 5.5vw, 52px); letter-spacing: -0.02em; line-height: 1.05;
  text-transform: lowercase; margin: 14px 0 0;
}
.section__lead { margin-top: 16px; max-width: 46ch; color: var(--fog); font-size: 16px; }

/* ---- cards ---- */
.cards {
  margin-top: 48px;
  display: grid; gap: 20px;
  grid-template-columns: repeat(4, 1fr);
}
.card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: 24px; overflow: hidden;
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  transition: transform 200ms ease, border-color 200ms ease;
}
.card:hover { transform: translateY(-4px); border-color: rgba(124,77,255,0.45); }
.card__media { position: relative; aspect-ratio: 4 / 5; overflow: hidden; }
.card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 500ms ease; }
.card:hover .card__media img { transform: scale(1.05); }
.card__media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(7,10,24,0) 35%, rgba(7,10,24,0.55) 100%);
}
.card__credit {
  position: absolute; bottom: 8px; right: 10px; z-index: 2;
  font-size: 9px; letter-spacing: 0.02em; color: rgba(255,255,255,0.6);
}
.card__body { padding: 18px 18px 22px; }
.card__title {
  font-family: 'Space Grotesk', sans-serif; font-weight: 600; letter-spacing: -0.02em;
  font-size: 19px; line-height: 1.12; text-transform: lowercase; margin: 10px 0 8px;
}
.card__desc { font-size: 14px; color: var(--fog); line-height: 1.5; }

/* ---- cómo funciona ---- */
.how { border-top: 1px solid rgba(255,255,255,0.06); }
.steps {
  list-style: none; margin-top: 48px;
  display: grid; gap: 28px; grid-template-columns: repeat(3, 1fr);
}
.step {
  padding: 28px; border-radius: 24px;
  background: rgba(255,255,255,0.035);
  border: 1px solid rgba(255,255,255,0.08);
}
.step__num {
  font-family: 'Space Grotesk', sans-serif; font-weight: 700;
  font-size: 44px; letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.step__title {
  font-family: 'Space Grotesk', sans-serif; font-weight: 600; letter-spacing: -0.02em;
  font-size: 21px; text-transform: lowercase; margin: 14px 0 8px;
}
.step__desc { color: var(--fog); font-size: 15px; }

/* ============ CTA FINAL ============ */
.cta {
  position: relative; overflow: hidden;
  background: var(--grad-signature);
  text-align: center;
  padding: clamp(80px, 14vw, 150px) 24px;
}
.cta::before { /* fundido superior desde el ink */
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 30%;
  background: linear-gradient(180deg, var(--ink-800) 0%, rgba(7,10,24,0) 100%);
  z-index: 1; pointer-events: none;
}
.cta__inner { position: relative; z-index: 2; display: flex; flex-direction: column; align-items: center; gap: 22px; }
.cta__title {
  font-family: 'Space Grotesk', sans-serif; font-weight: 600;
  font-size: clamp(34px, 7vw, 68px); letter-spacing: -0.03em; text-transform: lowercase;
}

/* ============ FOOTER ============ */
.footer {
  background: var(--ink-900);
  padding: 48px 24px 56px; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 18px;
}
.footer__links { display: flex; gap: 26px; flex-wrap: wrap; justify-content: center; }
.footer__links a {
  color: var(--fog); text-decoration: none; font-size: 14px;
  transition: color 140ms ease;
}
.footer__links a:hover { color: var(--cyan); }
.footer__meta { display: flex; flex-direction: column; gap: 6px; margin-top: 6px; }
.footer__brand { font-family: 'Space Grotesk', sans-serif; font-weight: 600; letter-spacing: -0.02em; color: rgba(255,255,255,0.85); }
.footer__legal, .footer__credit { font-size: 12px; color: rgba(169,178,200,0.6); }

/* ============ ANIMACIONES ============ */
@keyframes rise { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: none; } }
@keyframes scrolldot { 0%,100% { transform: translate(-50%,0); opacity: 1; } 50% { transform: translate(-50%,8px); opacity: 0.3; } }
@keyframes reveal { from { opacity: 0; transform: translateY(34px); } to { opacity: 1; transform: none; } }

/* scroll-reveal solo si el browser soporta scroll timelines → nunca esconde contenido en navegadores sin soporte */
@supports (animation-timeline: view()) {
  .reveal { animation: reveal linear both; animation-timeline: view(); animation-range: entry 5% cover 24%; }
}

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

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; gap: 16px; }
}
@media (max-width: 560px) {
  .cards { grid-template-columns: 1fr; }
  .hero__inner { padding-bottom: 16vh; }
  .hero__title { font-size: clamp(44px, 15vw, 64px); }
  .card__media { aspect-ratio: 16 / 11; }
}