/* ============================================================
   STACKO | Componentes / seções
   ============================================================ */

/* ===================== NAVBAR ===================== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-nav);
  transition: background var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out),
              backdrop-filter var(--dur-base) var(--ease-out);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(5, 5, 6, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom-color: var(--border-subtle);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.nav__brand { display: inline-flex; align-items: center; gap: 10px; }
.nav__logo { border-radius: 8px; }
.nav__name {
  font-weight: var(--fw-semibold);
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  color: var(--text-primary);
}
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}
.nav__links a {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  transition: color var(--dur-fast) var(--ease-out);
  position: relative;
}
.nav__links a:hover { color: var(--text-primary); }
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 1px;
  background: var(--royal-bright);
  transition: width var(--dur-base) var(--ease-out);
}
.nav__links a:hover::after { width: 100%; }
.nav__cta { padding: 0.6rem 1.15rem; font-size: var(--fs-sm); }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
}
.nav__toggle span {
  width: 20px; height: 1.5px;
  background: var(--text-primary);
  transition: transform var(--dur-base) var(--ease-out),
              opacity var(--dur-fast) var(--ease-out);
}
.nav.is-open .nav__toggle span:nth-child(1) { transform: translateY(3.25px) rotate(45deg); }
.nav.is-open .nav__toggle span:nth-child(2) { transform: translateY(-3.25px) rotate(-45deg); }

.nav__mobile {
  display: none;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--gutter);
  padding-top: var(--space-4);
  background: rgba(5, 5, 6, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}
.nav__mobile a {
  font-size: var(--fs-lg);
  color: var(--text-secondary);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border-subtle);
}
.nav__mobile a:last-child { border: none; margin-top: var(--space-3); justify-content: center; }
.nav.is-open .nav__mobile { display: flex; }

/* ===================== HERO ===================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: 120px;
  padding-bottom: var(--space-9);
  overflow: hidden;
}
.hero__glow {
  width: 900px; height: 900px;
  top: -400px; left: 50%;
  transform: translateX(-50%);
  opacity: 0.35;
}
/* Feixe de luz sutil descendo do topo */
.hero__beam {
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 1px; height: 45vh;
  background: linear-gradient(180deg, var(--royal-glow), transparent);
  opacity: 0.5;
  pointer-events: none;
}
.hero__inner {
  position: relative;
  z-index: 2;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(10px);
  margin-bottom: var(--space-6);
}
.hero__badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--royal-bright);
  box-shadow: 0 0 12px var(--royal-glow);
  animation: pulse 2.4s var(--ease-in-out) infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 12px var(--royal-glow); }
  50% { opacity: 0.6; box-shadow: 0 0 4px var(--royal-glow); }
}
.hero__title {
  max-width: 16ch;
  margin-bottom: var(--space-5);
}
.hero__sub {
  max-width: 60ch;
  font-size: var(--fs-lg);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-7);
}
.hero__cta {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--space-9);
}
.hero__meta {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
  justify-content: center;
}
.hero__meta-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.hero__meta-item strong {
  font-size: 1.5rem;
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.hero__meta-item span { font-size: var(--fs-xs); color: var(--text-tertiary); }
.hero__meta-sep { width: 1px; height: 32px; background: var(--border-soft); }

/* ===================== CLIENTS / MARQUEE ===================== */
.clients { padding-block: var(--space-8); border-block: 1px solid var(--border-subtle); }
.clients__label {
  text-align: center;
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: var(--space-6);
}
.marquee {
  position: relative;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee__track {
  display: flex;
  gap: var(--space-8);
  width: max-content;
  animation: marquee 38s linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__item {
  font-size: 1.25rem;
  font-weight: var(--fw-semibold);
  letter-spacing: -0.01em;
  color: var(--text-tertiary);
  white-space: nowrap;
  opacity: 0.7;
  transition: color var(--dur-base), opacity var(--dur-base);
}
.marquee__item:hover { color: var(--text-secondary); opacity: 1; }
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ===================== SERVIÇOS ===================== */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.service {
  position: relative;
  background: var(--bg-base);
  padding: var(--space-6);
  min-height: 230px;
  display: flex;
  flex-direction: column;
  transition: background var(--dur-base) var(--ease-out);
  overflow: hidden;
}
.service::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 0%), var(--royal-tint), transparent 70%);
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out);
  pointer-events: none;
}
.service:hover { background: var(--bg-elevated); }
.service:hover::before { opacity: 1; }
.service__icon {
  width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: var(--radius-md);
  background: var(--bg-elevated-2);
  border: 1px solid var(--border-soft);
  color: var(--text-primary);
  margin-bottom: var(--space-5);
  transition: border-color var(--dur-base), color var(--dur-base), transform var(--dur-base) var(--ease-out);
}
.service:hover .service__icon {
  border-color: var(--border-royal);
  color: var(--royal-soft);
  transform: translateY(-2px);
}
.service__icon svg { width: 22px; height: 22px; }
.service__title { font-size: var(--fs-h4); margin-bottom: var(--space-2); }
.service__desc { font-size: var(--fs-sm); color: var(--text-secondary); line-height: 1.55; flex: 1; }
.service__tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: var(--space-4); }
.service__tag {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
  padding: 3px 9px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
}

/* ===================== PROCESSO ===================== */
.process { overflow: hidden; }
.process__glow { width: 700px; height: 700px; top: 20%; right: -300px; opacity: 0.22; }
.process__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
.process__step {
  position: relative;
  padding: var(--space-5);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  transition: border-color var(--dur-base), transform var(--dur-base) var(--ease-out);
}
.process__step:hover { border-color: var(--border-royal); transform: translateY(-3px); }
.process__n {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--royal-soft);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
  display: inline-block;
}
.process__step h3 { font-size: var(--fs-h4); margin-bottom: var(--space-2); }
.process__step p { font-size: var(--fs-sm); color: var(--text-secondary); line-height: 1.5; }

/* ===================== DIFERENCIAIS ===================== */
.edge__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
.edge__item {
  padding: var(--space-5);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  transition: border-color var(--dur-base), background var(--dur-base), transform var(--dur-base) var(--ease-out);
}
.edge__item:hover { border-color: var(--border-soft); background: var(--bg-elevated-2); transform: translateY(-3px); }
.edge__icon {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border-radius: var(--radius-sm);
  background: var(--royal-tint);
  color: var(--royal-soft);
  margin-bottom: var(--space-4);
}
.edge__icon svg { width: 20px; height: 20px; }
.edge__item h3 { font-size: var(--fs-h4); margin-bottom: var(--space-2); }
.edge__item p { font-size: var(--fs-sm); color: var(--text-secondary); line-height: 1.5; }

/* ===================== CASES ===================== */
.cases__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}
.case-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  overflow: hidden;
  transition: border-color var(--dur-base), transform var(--dur-base) var(--ease-out);
}
.case-card:hover { border-color: var(--border-soft); transform: translateY(-4px); }
.case-card__thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--border-subtle);
}
.case-card__thumb::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 34px 34px;
  opacity: 0.5;
}
.case-card__mark {
  position: relative;
  font-size: 2.4rem;
  font-weight: var(--fw-bold);
  letter-spacing: -0.04em;
  color: #fff;
  z-index: 1;
}
.case-card__cat {
  position: absolute;
  top: var(--space-3); left: var(--space-3);
  z-index: 1;
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--text-primary);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(5, 5, 6, 0.6);
  border: 1px solid var(--border-soft);
  backdrop-filter: blur(8px);
}
.case-card__body { padding: var(--space-5); display: flex; flex-direction: column; flex: 1; }
.case-card__title { font-size: var(--fs-h3); margin-bottom: var(--space-2); }
.case-card__desc { font-size: var(--fs-sm); color: var(--text-secondary); line-height: 1.55; margin-bottom: var(--space-5); flex: 1; }
.case-card__results {
  display: flex;
  gap: var(--space-5);
  padding-block: var(--space-4);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: var(--space-4);
}
.case-card__result strong {
  display: block;
  font-size: 1.35rem;
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.case-card__result span { font-size: var(--fs-xs); color: var(--text-tertiary); }
.case-card__tech { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: var(--space-4); }
.case-card__tech span {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
  padding: 3px 9px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
}
.case-card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-primary);
  transition: gap var(--dur-base) var(--ease-out), color var(--dur-base);
}
.case-card__link:hover { color: var(--royal-soft); gap: 10px; }

/* ===================== TECNOLOGIAS ===================== */
.tech__grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 1px;
  background: var(--border-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.tech__item {
  background: var(--bg-base);
  padding: var(--space-5) var(--space-3);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 92px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  transition: background var(--dur-base), color var(--dur-base);
}
.tech__item:hover { background: var(--bg-elevated); color: var(--text-primary); }

/* ===================== ESTATÍSTICAS ===================== */
.stats { overflow: hidden; }
.stats__glow { width: 800px; height: 500px; top: 50%; left: 50%; transform: translate(-50%, -50%); opacity: 0.18; }
.stats__grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
  padding: var(--space-8) var(--space-6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, var(--bg-elevated), var(--bg-base));
}
.stat { text-align: center; }
.stat__value {
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: var(--fw-semibold);
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: var(--space-2);
}
.stat__value .u { color: var(--royal-soft); }
.stat__label { font-size: var(--fs-sm); color: var(--text-secondary); }

/* ===================== SOBRE (resumo na home) ===================== */
.about__top {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-7);
  align-items: start;
}
.about__intro { display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-6); }
.about__lead { font-size: var(--fs-lg); color: var(--text-secondary); line-height: 1.65; }

/* ===================== DEPOIMENTOS ===================== */
.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}
.testimonial {
  padding: var(--space-6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  display: flex;
  flex-direction: column;
  transition: border-color var(--dur-base), transform var(--dur-base) var(--ease-out);
}
.testimonial:hover { border-color: var(--border-soft); transform: translateY(-3px); }
.testimonial__quote {
  font-size: var(--fs-lg);
  color: var(--text-primary);
  line-height: 1.55;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-5);
  flex: 1;
}
.testimonial__mark { color: var(--royal-soft); font-size: 2rem; line-height: 0; display: block; margin-bottom: var(--space-3); height: 14px; }
.testimonial__author { display: flex; flex-direction: column; }
.testimonial__name { font-size: var(--fs-sm); font-weight: var(--fw-semibold); color: var(--text-primary); }
.testimonial__role { font-size: var(--fs-xs); color: var(--text-tertiary); }

/* ===================== FAQ ===================== */
.faq__container { max-width: 820px; }
.faq__list { display: flex; flex-direction: column; }
.faq__item { border-bottom: 1px solid var(--border-subtle); }
.faq__item:first-child { border-top: 1px solid var(--border-subtle); }
.faq__q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  text-align: left;
  padding: var(--space-5) 0;
  font-size: var(--fs-lg);
  font-weight: var(--fw-medium);
  color: var(--text-primary);
  transition: color var(--dur-base);
}
.faq__q:hover { color: var(--royal-soft); }
.faq__icon {
  flex-shrink: 0;
  width: 22px; height: 22px;
  position: relative;
}
.faq__icon::before, .faq__icon::after {
  content: "";
  position: absolute;
  background: currentColor;
  transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-base);
}
.faq__icon::before { top: 50%; left: 3px; right: 3px; height: 1.5px; transform: translateY(-50%); }
.faq__icon::after { left: 50%; top: 3px; bottom: 3px; width: 1.5px; transform: translateX(-50%); }
.faq__item.is-open .faq__icon::after { opacity: 0; transform: translateX(-50%) rotate(90deg); }
.faq__a {
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--dur-base) var(--ease-out);
}
.faq__a-inner {
  padding-bottom: var(--space-5);
  padding-right: var(--space-8);
  font-size: var(--fs-body);
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ===================== CTA FINAL ===================== */
.cta-final__card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, var(--bg-elevated-2), var(--bg-base));
  padding: clamp(3rem, 8vw, 6rem) var(--gutter);
  text-align: center;
}
.cta-final__glow {
  width: 600px; height: 400px;
  bottom: -200px; left: 50%;
  transform: translateX(-50%);
  opacity: 0.4;
}
.cta-final__content { position: relative; z-index: 2; display: flex; flex-direction: column; align-items: center; }
.cta-final__title {
  font-size: var(--fs-h1);
  margin-top: var(--space-4);
  margin-bottom: var(--space-4);
  letter-spacing: -0.03em;
}
.cta-final__sub {
  max-width: 46ch;
  font-size: var(--fs-lg);
  color: var(--text-secondary);
  margin-bottom: var(--space-7);
}
.cta-final__actions { display: flex; gap: var(--space-3); flex-wrap: wrap; justify-content: center; }

/* ===================== FOOTER ===================== */
.footer { border-top: 1px solid var(--border-subtle); padding-top: var(--space-9); }
.footer__inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: var(--space-6);
  padding-bottom: var(--space-8);
}
.footer__brand { max-width: 300px; }
.footer__tag { font-size: var(--fs-sm); color: var(--text-secondary); margin-top: var(--space-4); line-height: 1.55; }
.footer__social { display: flex; gap: var(--space-4); margin-top: var(--space-5); }
.footer__social a {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  transition: color var(--dur-fast);
}
.footer__social a:hover { color: var(--royal-soft); }
.footer__col { display: flex; flex-direction: column; gap: var(--space-3); }
.footer__col h4 {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: var(--space-2);
}
.footer__col a { font-size: var(--fs-sm); color: var(--text-secondary); transition: color var(--dur-fast); }
.footer__col a:hover { color: var(--text-primary); }
.footer__cta { margin-top: var(--space-3); align-self: flex-start; }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  padding-block: var(--space-5);
  border-top: 1px solid var(--border-subtle);
  flex-wrap: wrap;
}
.footer__bottom p { font-size: var(--fs-xs); color: var(--text-tertiary); }

/* ============================================================
   RESPONSIVIDADE
   ============================================================ */
@media (max-width: 1080px) {
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .process__grid, .edge__grid { grid-template-columns: repeat(2, 1fr); }
  .cases__grid, .testimonials__grid { grid-template-columns: repeat(2, 1fr); }
  .tech__grid { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 860px) {
  .nav__links { display: none; }
  .nav__cta { display: none; }
  .nav__toggle { display: flex; }
  .about__top { grid-template-columns: 1fr; gap: var(--space-5); }
  .stats__grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-7) var(--space-4); }
  .footer__inner { grid-template-columns: 1fr 1fr; gap: var(--space-7) var(--space-5); }
  .footer__brand { grid-column: 1 / -1; max-width: 100%; }
}

@media (max-width: 560px) {
  .services__grid, .process__grid, .edge__grid,
  .cases__grid, .testimonials__grid { grid-template-columns: 1fr; }
  .tech__grid { grid-template-columns: repeat(2, 1fr); }
  .hero__meta { gap: var(--space-4); }
  .hero__meta-sep { display: none; }
  .stats__grid { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
  .case-card__results { gap: var(--space-6); }
}