/* ============================================================
   GESTIUM — Landing Programa de Referidos
   Paleta: Azul oscuro tecnológico + acento cian/eléctrico
   ============================================================ */

/* -------- RESET & BASE -------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: #1a1d2e;
  background: #f7f8fc;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

/* -------- TOKENS -------- */
:root {
  --clr-brand-dark:  #0b0e1f;
  --clr-brand-mid:   #101433;
  --clr-brand-blue:  #1a2255;
  --clr-accent:      #00d4ff;
  --clr-accent-dark: #00a8cc;
  --clr-accent-2:    #7c3aed;
  --clr-text:        #1a1d2e;
  --clr-text-muted:  #64748b;
  --clr-text-light:  #94a3b8;
  --clr-surface:     #ffffff;
  --clr-surface-2:   #f1f5f9;
  --clr-border:      #e2e8f0;
  --clr-error:       #dc2626;
  --clr-success:     #16a34a;

  --radius-sm:   6px;
  --radius-md:   12px;
  --radius-lg:   20px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md: 0 4px 16px rgba(0,0,0,.10), 0 2px 6px rgba(0,0,0,.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.14), 0 4px 12px rgba(0,0,0,.07);

  --transition: 0.22s ease;
}

/* -------- TYPOGRAPHY -------- */
.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: var(--clr-text);
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.section-title--light { color: #fff; }
.text-logo-orange { color: #F19C05; }

.section-eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: 0.5rem;
}
.section-eyebrow--light { color: var(--clr-accent); }

.section-subtitle {
  font-size: 1.05rem;
  color: var(--clr-text-muted);
  margin-top: 0.75rem;
  max-width: 560px;
  margin-inline: auto;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.highlight {
  color: var(--clr-accent);
  background: linear-gradient(135deg, var(--clr-accent), #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.link {
  color: var(--clr-accent-dark);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition);
}
.link:hover { color: var(--clr-brand-blue); }

/* -------- CONTAINER -------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 1.25rem;
}

/* -------- BUTTONS -------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
  white-space: nowrap;
  line-height: 1;
}
.btn:focus-visible {
  outline: 3px solid var(--clr-accent);
  outline-offset: 3px;
}
.btn:active { transform: scale(0.97); }

.btn--primary {
  background: linear-gradient(135deg, #00d4ff 0%, #0070f3 60%, #7c3aed 100%);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0, 112, 243, 0.35);
}
.btn--primary:hover {
  box-shadow: 0 6px 28px rgba(0, 112, 243, 0.5);
  transform: translateY(-2px);
}

.btn--ghost {
  background: transparent;
  color: rgba(255,255,255,0.9);
  border-color: rgba(255,255,255,0.35);
}
.btn--ghost:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.6);
}

.btn--sm  { padding: 0.55rem 1.2rem; font-size: 0.8rem; }
.btn--md  { padding: 0.7rem 1.6rem; }
.btn--lg  { padding: 0.9rem 2rem; font-size: 0.9rem; }
.btn--xl  { padding: 1rem 2.5rem; font-size: 1rem; }
.btn--full { width: 100%; }
.whatsapp-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  box-shadow: 0 6px 18px rgba(5, 183, 35, 0.32);
  transition: transform var(--transition), box-shadow var(--transition);
}
.whatsapp-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(5, 183, 35, 0.42);
}
.whatsapp-button:focus-visible {
  outline: 3px solid var(--clr-accent);
  outline-offset: 3px;
}
.whatsapp-button img {
  width: 100%;
  height: 100%;
}
.whatsapp-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}
.whatsapp-cta__text {
  font-size: 0.84rem;
  font-weight: 700;
  color: rgba(255,255,255,0.82);
  white-space: nowrap;
}

/* -------- NAVBAR -------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11,14,31,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding-block: 0.875rem;
}
.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.navbar__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}
.navbar__logo-img {
  height: 32px;
  width: auto;
  display: block;
}

.footer__logo-img {
  height: 28px;
  width: auto;
  display: block;
}

/* -------- HERO -------- */
.hero {
  background: var(--clr-brand-dark);
  background-image:
    radial-gradient(ellipse 80% 60% at 60% 20%, rgba(0,212,255,0.08) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 90% 80%, rgba(124,58,237,0.08) 0%, transparent 60%);
  padding-block: 3rem 2rem;
  overflow: hidden;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero__inner {
  display: block;
  position: relative;
  z-index: 1;
}
.hero__content {
  max-width: 860px;
  margin-inline: auto;
  text-align: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0,212,255,0.1);
  border: 1px solid rgba(0,212,255,0.25);
  color: var(--clr-accent);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.5rem;
  width: fit-content;
}
.badge__dot {
  width: 7px;
  height: 7px;
  background: var(--clr-accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero__title {
  font-size: clamp(1.6rem, 3.2vw, 2.6rem);
  font-weight: 900;
  color: #fff;
  line-height: 1.18;
  letter-spacing: -0.025em;
  margin-bottom: 1.5rem;
  max-width: 820px;
  margin-inline: auto;
}

.hero__subtitle {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.65;
  margin-bottom: 2rem;
  max-width: 720px;
  margin-inline: auto;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.hero__legal {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
}
.hero__legal svg { flex-shrink: 0; color: var(--clr-success); }

/* -------- STEPS -------- */
.steps {
  padding-block: 5rem;
  background: var(--clr-surface-2);
}

.steps__grid {
  display: flex;
  align-items: stretch;
  gap: 0;
}

.step-card {
  flex: 1;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: var(--shadow-sm);
}
.step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }

.step-card--accent {
  background: linear-gradient(135deg, var(--clr-brand-dark) 0%, var(--clr-brand-blue) 100%);
  border-color: rgba(0,212,255,0.2);
  box-shadow: var(--shadow-md);
}
.step-card--accent .step-card__number { color: rgba(0,212,255,0.3); }
.step-card--accent .step-card__icon   { color: var(--clr-accent); background: rgba(0,212,255,0.1); }
.step-card--accent .step-card__title  { color: #fff; }
.step-card--accent .step-card__text   { color: rgba(255,255,255,0.7); }

.step-card__number {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1;
  color: var(--clr-surface-2);
  margin-bottom: 1rem;
  letter-spacing: -0.04em;
}

.step-card__icon {
  width: 56px;
  height: 56px;
  background: var(--clr-surface-2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-brand-blue);
  margin-bottom: 1rem;
}

.step-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: 0.5rem;
}

.step-card__text {
  font-size: 0.92rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
}

.steps__connector {
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  padding-inline: 0.5rem;
  color: var(--clr-border);
  gap: 0.25rem;
  min-width: 36px;
}
.connector-line { flex: 1; width: 2px; background: var(--clr-border); }

/* -------- ABOUT -------- */
.about {
  padding-block: 5rem;
  background: var(--clr-surface);
  background-image:
    radial-gradient(ellipse 50% 40% at 0% 0%, rgba(0,212,255,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 100% 20%, rgba(124,58,237,0.07) 0%, transparent 60%);
  position: relative;
  overflow: hidden;
}
.about::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(15,23,42,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15,23,42,0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.about__inner {
  display: flex;
  flex-direction: column;
  gap: 3.5rem;
  position: relative;
  z-index: 1;
}
.about__content {
  max-width: 784px;
}
.about__text {
  font-size: 1.05rem;
  color: var(--clr-text-muted);
  line-height: 1.75;
  margin-top: 1rem;
}
.video-carousel {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(320px, 1fr);
  gap: 1.25rem;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scroll-snap-type: inline mandatory;
  padding-bottom: 0.5rem;
  scrollbar-color: rgba(0,212,255,0.45) rgba(255,255,255,0.08);
}
.video-slide {
  scroll-snap-align: start;
  aspect-ratio: 16 / 9;
  min-width: 0;
  background: var(--clr-brand-dark);
  border: 1px solid rgba(15,23,42,0.1);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.video-slide iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}
.about__capabilities {
  width: 100%;
}
.about__caps-title {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: 1.25rem;
  margin-top: 0.5rem;
}
.caps-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
}
.caps-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  background: rgba(255,255,255,0.78);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.75rem;
  box-shadow: var(--shadow-sm);
}
.caps-item svg { color: var(--clr-accent); flex-shrink: 0; }

/* -------- BENEFITS -------- */
.benefits {
  padding-block: 5rem;
  background: var(--clr-surface);
}
.benefits__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}
.benefit-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.benefit-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(0,112,243,0.2);
}
.benefit-card__icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, rgba(0,212,255,0.1) 0%, rgba(0,112,243,0.1) 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0070f3;
  margin: 0 auto 1.25rem;
}
.benefit-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: 0.5rem;
}
.benefit-card__text {
  font-size: 0.88rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
}
.benefits__note {
  text-align: center;
  margin-top: 2rem;
  font-size: 0.82rem;
  color: var(--clr-text-light);
}

/* -------- FAQ -------- */
.faq {
  padding-block: 5rem;
  background: var(--clr-surface);
}

.faq__list {
  max-width: 760px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.faq__item {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq__item:has(.faq__question[aria-expanded="true"]) {
  border-color: rgba(0,112,243,0.25);
}

.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 1.4rem;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 0.97rem;
  font-weight: 600;
  font-family: inherit;
  color: var(--clr-text);
  transition: background var(--transition), color var(--transition);
}
.faq__question:hover { background: var(--clr-surface-2); }
.faq__question:focus-visible { outline: 2px solid var(--clr-accent); outline-offset: -2px; }
.faq__question[aria-expanded="true"] { color: #0070f3; }

.faq__icon {
  flex-shrink: 0;
  transition: transform var(--transition);
  color: var(--clr-text-light);
}
.faq__question[aria-expanded="true"] .faq__icon {
  transform: rotate(180deg);
  color: #0070f3;
}

.faq__answer {
  padding: 0 1.4rem 1.2rem;
  font-size: 0.93rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
}
.faq__answer p + p { margin-top: 0.75rem; }

/* -------- LEGAL BLOCK -------- */
.legal-block {
  padding-block: 2rem;
  background: var(--clr-surface-2);
  border-top: 1px solid var(--clr-border);
}
.legal-block__text {
  text-align: center;
  font-size: 0.82rem;
  color: var(--clr-text-light);
  line-height: 1.7;
}

/* -------- FOOTER -------- */
.footer {
  background: var(--clr-brand-dark);
  padding-block: 0.9rem;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}
.footer__brand { display: flex; flex-direction: column; gap: 0.4rem; }
.footer__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.footer__tagline { font-size: 0.8rem; color: rgba(255,255,255,0.35); }
.footer__nav { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer__link {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
  transition: color var(--transition);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.footer__link:hover { color: rgba(255,255,255,0.75); }
.footer__copy {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.25);
  width: 100%;
  text-align: center;
  padding-top: 1rem;
  border-top: 1px solid rgba(255,255,255,0.06);
}

/* ============================================================
   RESPONSIVE — TABLET  (≤ 1024px)
   ============================================================ */
@media (max-width: 1024px) {
  .benefits__grid { grid-template-columns: repeat(2, 1fr); }
  .caps-list { grid-template-columns: 1fr; }
}

/* ============================================================
   RESPONSIVE — PHABLET / TABLET  (≤ 768px)
   ============================================================ */
@media (max-width: 768px) {
  .hero { padding-block: 3.5rem 3rem; }

  .about__inner { gap: 2rem; }
  .video-carousel { grid-auto-columns: 88%; }
  .caps-list { grid-template-columns: 1fr 1fr; }

  .steps__grid {
    flex-direction: column;
    gap: 1rem;
  }
  .steps__connector {
    flex-direction: row;
    min-width: auto;
    padding-block: 0;
    padding-inline: 1rem;
    height: 36px;
  }
  .connector-line { flex: 1; width: auto; height: 2px; }

  .footer__inner { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .footer__nav { flex-direction: column; gap: 0.75rem; }
  .footer__copy { text-align: left; }
}

/* ============================================================
   RESPONSIVE — MOBILE  (≤ 480px)
   ============================================================ */
@media (max-width: 480px) {
  .hero__actions { flex-direction: column; }
  .btn--lg { width: 100%; justify-content: center; }

  .benefits__grid { grid-template-columns: 1fr; }

  .caps-list { grid-template-columns: 1fr; }

  .navbar__logo-img { height: 26px; }
}

/* ============================================================
   ACCESSIBILITY — reduced motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}