/* ============================================================
   RVA TECNOLOGIA — STYLESHEET
   Design language: "Circuito" — dark tech canvas inspired by the
   brand's cyber-lion mark. Signature element: an animated circuit
   trace (glowing pulse line) used in the hero and as section
   dividers, echoing the glowing linework in the logo.
   ============================================================ */

/* ---------------------------------------------------------
   1. DESIGN TOKENS
--------------------------------------------------------- */
:root {
  /* Brand palette (fonte: identidade visual RVA TECNOLOGIA) */
  --blue: #13AEE3;
  --blue-rgb: 19, 174, 227;
  --blue-dark: #0C86AC;
  --blue-glow: #5BD8FF;
  --purple: #4C3FE0;
  --purple-rgb: 76, 63, 224;
  --indigo-deep: #1C2B6B;
  --indigo-deep-rgb: 28, 43, 107;
  --white: #FCFCFC;
  --graphite: #1F2228;
  --graphite-rgb: 31, 34, 40;
  --graphite-2: #262A32;
  --graphite-3: #2E333C;
  --graphite-4: #383E48;
  --gray: #ABACAE;
  --gray-dim: #94969B; /* ajustado para >=4.5:1 de contraste sobre --bg (WCAG AA) */

  /* Semantic */
  --bg: var(--graphite);
  --bg-elevated: var(--graphite-2);
  --bg-card: rgba(38, 42, 50, 0.55);
  --border-subtle: rgba(171, 172, 174, 0.14);
  --border-strong: rgba(19, 174, 227, 0.35);
  --text-primary: var(--white);
  --text-secondary: var(--gray);
  --text-muted: var(--gray-dim);

  /* Typography */
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', monospace;

  /* Type scale (fluid) */
  --fs-hero: clamp(2.6rem, 6vw, 5rem);
  --fs-h1: clamp(2.1rem, 4vw, 3.2rem);
  --fs-h2: clamp(1.7rem, 3vw, 2.4rem);
  --fs-h3: clamp(1.2rem, 2vw, 1.5rem);
  --fs-body: 1rem;
  --fs-small: 0.875rem;
  --fs-mono: 0.8rem;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 7rem;

  /* Layout */
  --container-w: 1240px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --header-h: 84px;

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast: 0.2s;
  --dur-med: 0.45s;
  --dur-slow: 0.9s;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea { font: inherit; color: inherit; }
svg { display: block; }

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

/* Skip-link: primeiro elemento focável da página — invisível até
   receber foco por teclado, quando desce por cima do header. */
.skip-link {
  position: fixed;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 300;
  padding: 0.75rem 1.4rem;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  background: var(--blue);
  color: #08171D;
  font-weight: 600;
  font-size: 0.9rem;
  transition: top var(--dur-fast) var(--ease);
}
.skip-link:focus-visible { top: 0; outline-offset: 0; }

/* Ambient background: azul + roxo em camadas, cobrindo mais do viewport
   (antes só havia glow perto do topo — o resto da tela ficava "chapado"),
   mais uma grade fina de linhas para reforçar a leitura tecnológica. */
body {
  background-image:
    linear-gradient(rgba(var(--blue-rgb), 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--blue-rgb), 0.05) 1px, transparent 1px),
    radial-gradient(ellipse 1100px 800px at 10% -5%, rgba(var(--blue-rgb), 0.22), transparent 60%),
    radial-gradient(ellipse 900px 700px at 95% 10%, rgba(var(--purple-rgb), 0.18), transparent 55%),
    radial-gradient(ellipse 1000px 800px at 50% 100%, rgba(var(--indigo-deep-rgb), 0.4), transparent 65%),
    radial-gradient(ellipse 800px 600px at 0% 60%, rgba(var(--purple-rgb), 0.12), transparent 55%),
    linear-gradient(var(--bg), var(--bg));
  background-size: 56px 56px, 56px 56px, auto, auto, auto, auto, auto;
  background-attachment: fixed;
}

/* ---------------------------------------------------------
   3. TYPOGRAPHY
--------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: var(--space-sm);
}
.eyebrow::before {
  content: '';
  width: 22px;
  height: 1px;
  background: linear-gradient(90deg, var(--blue), transparent);
}

.section-heading { max-width: 640px; margin-bottom: var(--space-lg); }
.section-heading h2 { margin-bottom: var(--space-sm); }
.section-heading p { color: var(--text-secondary); font-size: 1.05rem; }
.section-heading.center { margin-inline: auto; text-align: center; }

.text-gradient {
  background: linear-gradient(100deg, var(--blue-glow) 0%, var(--blue) 45%, var(--blue-dark) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------------------------------------------------------
   4. LAYOUT UTILITIES
--------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

.section { padding-block: var(--space-2xl); position: relative; }
.section--tight { padding-block: var(--space-xl); }

/* Circuit divider — signature motif reused between sections */
.circuit-divider {
  position: relative;
  height: 1px;
  width: 100%;
  background: linear-gradient(90deg, transparent, var(--border-subtle) 20%, var(--border-subtle) 80%, transparent);
  overflow: visible;
}
.circuit-divider::after {
  content: '';
  position: absolute;
  top: -1.5px;
  width: 90px;
  height: 4px;
  border-radius: 4px;
  background: linear-gradient(90deg, transparent, var(--blue-glow), transparent);
  filter: blur(2px);
  animation: trace-run 6s linear infinite;
}
@keyframes trace-run {
  0% { left: -10%; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { left: 100%; opacity: 0; }
}

/* Reveal-on-scroll (driven by IntersectionObserver in main.js) */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-med) var(--ease), transform var(--dur-med) var(--ease);
}
.reveal-stagger.is-visible > * { opacity: 1; transform: translateY(0); }
/* Atraso em cascata — cobre até 12 itens (antes parava em 6: grids
   maiores como Diferenciais/8 e Tecnologias/10 tinham os itens extras
   aparecendo todos de uma vez, sem cascata). */
.reveal-stagger.is-visible > *:nth-child(1) { transition-delay: 0.03s; }
.reveal-stagger.is-visible > *:nth-child(2) { transition-delay: 0.09s; }
.reveal-stagger.is-visible > *:nth-child(3) { transition-delay: 0.15s; }
.reveal-stagger.is-visible > *:nth-child(4) { transition-delay: 0.21s; }
.reveal-stagger.is-visible > *:nth-child(5) { transition-delay: 0.27s; }
.reveal-stagger.is-visible > *:nth-child(6) { transition-delay: 0.33s; }
.reveal-stagger.is-visible > *:nth-child(7) { transition-delay: 0.39s; }
.reveal-stagger.is-visible > *:nth-child(8) { transition-delay: 0.45s; }
.reveal-stagger.is-visible > *:nth-child(9) { transition-delay: 0.51s; }
.reveal-stagger.is-visible > *:nth-child(10) { transition-delay: 0.57s; }
.reveal-stagger.is-visible > *:nth-child(11) { transition-delay: 0.63s; }
.reveal-stagger.is-visible > *:nth-child(12) { transition-delay: 0.69s; }

/* ---------------------------------------------------------
   5. BUTTONS
--------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.9rem 1.8rem;
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.btn:active { transform: scale(0.97); }

.btn--primary {
  background: linear-gradient(100deg, var(--blue-glow), var(--blue) 60%, var(--blue-dark));
  color: #08171D;
  box-shadow: 0 8px 24px -8px rgba(var(--blue-rgb), 0.55);
}
.btn--primary:hover { box-shadow: 0 10px 32px -6px rgba(var(--blue-rgb), 0.75); transform: translateY(-2px); }

.btn--ghost {
  background: rgba(var(--blue-rgb), 0.06);
  border: 1px solid var(--border-strong);
  color: var(--white);
  backdrop-filter: blur(6px);
}
.btn--ghost:hover { background: rgba(var(--blue-rgb), 0.14); border-color: var(--blue); transform: translateY(-2px); }

.btn--block { width: 100%; }
.btn--lg { padding: 1.1rem 2.4rem; font-size: 1.05rem; }

/* Estado de carregamento (envio do formulário) */
.btn.is-loading { pointer-events: none; opacity: 0.85; }
.btn.is-loading::before {
  content: '';
  width: 1em;
  height: 1em;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: btn-spin 0.7s linear infinite;
}
@keyframes btn-spin { to { transform: rotate(360deg); } }

/* Ícone de link externo nos cards do portfólio */
.btn svg { flex-shrink: 0; }

/* ---------------------------------------------------------
   6. HEADER / NAV
--------------------------------------------------------- */
.header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  height: var(--header-h);
  z-index: 200;
  display: flex;
  align-items: center;
  background: rgba(31, 34, 40, 0.55);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: background var(--dur-med) var(--ease), border-color var(--dur-med) var(--ease);
}
.header.is-scrolled {
  background: rgba(31, 34, 40, 0.85);
  border-bottom-color: var(--border-subtle);
}

/* Progresso de leitura — o "trace" de circuito da marca aplicado como
   feedback de posição na página. Escala controlada via JS (initHeader). */
.header__progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: linear-gradient(90deg, var(--blue-dark), var(--blue) 55%, var(--blue-glow));
  box-shadow: 0 0 10px rgba(var(--blue-rgb), 0.5);
  pointer-events: none;
}

.header__inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.brand { display: flex; align-items: center; gap: 0.65rem; }
.brand__logo { height: 38px; width: auto; }
.brand__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
}
.brand__name span { color: var(--blue); }

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  font-size: 0.92rem;
  font-weight: 500;
}
.nav__list a {
  position: relative;
  padding-block: 0.3rem;
  color: var(--text-secondary);
  transition: color var(--dur-fast) var(--ease);
}
.nav__list a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--blue);
  transition: width var(--dur-fast) var(--ease);
}
.nav__list a:hover { color: var(--white); }
.nav__list a:hover::after { width: 100%; }
.nav__list a.is-active { color: var(--white); }
.nav__list a.is-active::after { width: 100%; }

.header__actions { display: flex; align-items: center; gap: var(--space-md); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 26px;
  z-index: 210;
}
.nav-toggle span {
  height: 2px; width: 100%;
  background: var(--white);
  border-radius: 2px;
  transition: transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease);
}
.nav-toggle.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-active span:nth-child(2) { opacity: 0; }
.nav-toggle.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------------------------------------------------------
   7. HERO
--------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  overflow: hidden;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-xl);
  align-items: center;
  width: 100%;
}

.hero__eyebrow { margin-bottom: var(--space-md); }

.hero h1 {
  font-size: var(--fs-hero);
  margin-bottom: var(--space-md);
}

.hero__subtitle {
  max-width: 540px;
  font-size: clamp(1rem, 1.3vw, 1.15rem);
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-sm); margin-bottom: var(--space-lg); }

.hero__meta {
  display: flex;
  gap: var(--space-lg);
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  color: var(--text-muted);
}
.hero__meta strong { display: block; font-family: var(--font-display); font-size: 1.4rem; color: var(--white); font-weight: 600; }
/* Divisor entre os números: com o gap existente, a linha fica a meio
   caminho entre um item e o próximo. */
.hero__meta div + div { border-left: 1px solid var(--border-subtle); padding-left: var(--space-lg); }

.hero__visual {
  position: relative;
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
}

.hero__ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--border-subtle);
}
.hero__ring--2 { inset: 10%; border-color: rgba(var(--blue-rgb), 0.18); }
.hero__ring--3 { inset: 22%; border-style: dashed; border-color: rgba(var(--blue-rgb), 0.14); animation: spin-slow 40s linear infinite; }

@keyframes spin-slow { to { transform: rotate(360deg); } }

.hero__core {
  position: relative;
  width: 58%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, rgba(var(--blue-rgb), 0.35), rgba(19,174,227,0.02) 70%);
  border: 1px solid var(--border-strong);
  display: grid;
  place-items: center;
  box-shadow: 0 0 90px -20px rgba(var(--blue-rgb), 0.55);
}
.hero__core img { width: 62%; height: auto; border-radius: 50%; filter: drop-shadow(0 0 30px rgba(var(--blue-rgb), 0.45)); }

.hero__scanline {
  position: absolute;
  left: 8%; right: 8%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--blue-glow), transparent);
  filter: blur(1px);
  animation: scan-move 4.5s ease-in-out infinite;
  opacity: 0.85;
}
@keyframes scan-move {
  0%, 100% { top: 18%; opacity: 0; }
  10% { opacity: 0.9; }
  50% { top: 82%; opacity: 0.9; }
  60% { opacity: 0; }
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  text-transform: uppercase;
}
.hero__scroll .line { width: 1px; height: 34px; background: linear-gradient(var(--blue), transparent); animation: scroll-pulse 2s ease-in-out infinite; }
@keyframes scroll-pulse { 0%,100% { opacity: 0.3; } 50% { opacity: 1; } }

/* ---------------------------------------------------------
   8. ABOUT
--------------------------------------------------------- */
.about__grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: var(--space-xl);
  align-items: center;
}

.about__media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  aspect-ratio: 4/5;
  background: var(--bg-elevated);
}
.about__media img { width: 100%; height: 100%; object-fit: cover; }
.about__media::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(200deg, rgba(var(--blue-rgb), 0.25), transparent 55%);
}

/* Placa de marca: a logo é um lockup quadrado (ícone + wordmark lado a
   lado), então mostrá-la inteira (contain) sobre um campo de cor evita
   cortar o texto — diferente de uma foto, onde cover/crop funciona bem. */
.about__media--brand {
  background: radial-gradient(circle at 30% 30%, rgba(var(--blue-rgb), 0.22), var(--bg-elevated) 70%);
}
.about__media--brand img { object-fit: contain; padding: 14%; }
.about__badge {
  position: absolute;
  bottom: var(--space-md);
  left: var(--space-md);
  right: var(--space-md);
  background: rgba(31,34,40,0.75);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  color: var(--gray);
}
.about__badge strong { color: var(--blue); }

.about__text p { color: var(--text-secondary); margin-bottom: var(--space-md); font-size: 1.02rem; }

.about__pillars {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}
.pillar {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  padding: var(--space-md);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease), opacity var(--dur-med) var(--ease);
}
.pillar:hover { border-color: var(--border-strong); transform: translateY(-3px); }
.pillar__icon {
  flex-shrink: 0;
  width: 40px; height: 40px;
  border-radius: 10px;
  display: grid; place-items: center;
  background: rgba(var(--blue-rgb), 0.12);
  color: var(--blue);
}
.pillar h4 { font-size: 0.98rem; margin-bottom: 0.2rem; }
.pillar p { font-size: 0.85rem; color: var(--text-muted); }

/* ---------------------------------------------------------
   9. PORTFOLIO
--------------------------------------------------------- */
.portfolio__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: var(--space-lg);
}
.filter-btn {
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  transition: all var(--dur-fast) var(--ease);
}
.filter-btn:hover { border-color: var(--border-strong); color: var(--white); }
.filter-btn.is-active {
  background: var(--blue);
  border-color: var(--blue);
  color: #08171D;
  font-weight: 600;
}
/* Contagem de projetos por categoria (injetada em initPortfolioFilters) */
.filter-btn__count {
  display: inline-block;
  margin-left: 0.5em;
  padding: 0.05rem 0.5rem;
  border-radius: 999px;
  background: rgba(var(--blue-rgb), 0.12);
  color: var(--blue-glow);
  font-size: 0.7rem;
}
.filter-btn.is-active .filter-btn__count {
  background: rgba(8, 23, 29, 0.2);
  color: inherit;
}

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.project-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  transition: transform var(--dur-med) var(--ease), border-color var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease), opacity var(--dur-slow) var(--ease);
}
.project-card.is-filtered-out {
  opacity: 0;
  transform: scale(0.94);
  pointer-events: none;
  transition-duration: var(--dur-fast);
}
.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: 0 20px 50px -20px rgba(var(--blue-rgb), 0.4);
}

.project-card__media {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--graphite-3);
}
.project-card__media img {
  width: 100%; height: 100%; object-fit: contain; padding: 8%;
  transition: transform 0.6s var(--ease);
}
.project-card:hover .project-card__media img { transform: scale(1.06); }

.project-card__category {
  position: absolute;
  top: 0.8rem; left: 0.8rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(31,34,40,0.75);
  border: 1px solid var(--border-strong);
  color: var(--blue-glow);
  backdrop-filter: blur(6px);
}

.project-card__play {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(15,17,20,0.35);
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease);
}
.project-card:hover .project-card__play { opacity: 1; }
.project-card__play svg {
  width: 52px; height: 52px;
  filter: drop-shadow(0 4px 14px rgba(0,0,0,0.4));
}

.project-card__body { padding: var(--space-md); display: flex; flex-direction: column; gap: 0.6rem; flex: 1; }
.project-card__meta { display: flex; justify-content: space-between; align-items: center; font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-muted); }
.project-card__title { font-size: 1.15rem; }
.project-card__desc { color: var(--text-secondary); font-size: 0.9rem; flex: 1; }

.project-card__tech { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.3rem; }
.badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 0.28rem 0.6rem;
  border-radius: 6px;
  background: rgba(var(--blue-rgb), 0.1);
  border: 1px solid rgba(var(--blue-rgb), 0.22);
  color: var(--blue-glow);
}

.project-card__footer { display: flex; gap: 0.6rem; margin-top: var(--space-sm); }
.project-card__footer .btn { flex: 1; padding: 0.7rem 1rem; font-size: 0.85rem; }

/* Video modal */
.video-modal {
  position: fixed; inset: 0; z-index: 500;
  display: none;
  align-items: center; justify-content: center;
  background: rgba(8, 9, 11, 0.86);
  backdrop-filter: blur(6px);
  padding: var(--space-md);
}
.video-modal.is-open { display: flex; }
.video-modal__box {
  width: min(920px, 100%);
  aspect-ratio: 16/9;
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-strong);
  position: relative;
}
.video-modal__box video, .video-modal__box iframe { width: 100%; height: 100%; border: 0; }
.video-modal__close {
  position: absolute;
  top: -46px; right: 0;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  display: grid; place-items: center;
  color: var(--white);
}

.portfolio__more {
  margin-top: var(--space-xl);
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: linear-gradient(160deg, rgba(var(--blue-rgb), 0.08), transparent 60%);
  position: relative;
  overflow: hidden;
}
.portfolio__more h3 { font-size: var(--fs-h3); margin-bottom: var(--space-sm); }
.portfolio__more p { color: var(--text-secondary); margin-bottom: var(--space-md); max-width: 460px; margin-inline: auto; }

/* ---------------------------------------------------------
   10. DIFERENCIAIS
--------------------------------------------------------- */
.diff__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}
.diff-card {
  padding: var(--space-lg) var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  text-align: left;
  transition: transform var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), opacity var(--dur-med) var(--ease);
}
.diff-card:hover { transform: translateY(-5px); border-color: var(--border-strong); }
.diff-card__icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: grid; place-items: center;
  background: rgba(var(--blue-rgb), 0.12);
  color: var(--blue);
  margin-bottom: var(--space-sm);
}
.diff-card h4 { font-size: 1rem; margin-bottom: 0.35rem; }
.diff-card p { font-size: 0.85rem; color: var(--text-muted); }

/* ---------------------------------------------------------
   11. PROCESS TIMELINE
--------------------------------------------------------- */
.timeline {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  position: relative;
}
.timeline::before {
  content: '';
  position: absolute;
  top: 26px; left: 0; right: 0;
  height: 1px;
  background: var(--border-subtle);
}
.timeline-step { position: relative; padding-top: var(--space-lg); text-align: center; padding-inline: 0.5rem; }
.timeline-step__dot {
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--graphite);
  border: 2px solid var(--blue);
  box-shadow: 0 0 0 4px rgba(var(--blue-rgb), 0.12);
}
.timeline-step.is-visible .timeline-step__dot { animation: dot-pulse 1.8s ease-out; }
@keyframes dot-pulse {
  0% { box-shadow: 0 0 0 0 rgba(var(--blue-rgb), 0.55); }
  100% { box-shadow: 0 0 0 10px rgba(var(--blue-rgb), 0); }
}
.timeline-step__index { font-family: var(--font-mono); font-size: 0.7rem; color: var(--blue); letter-spacing: 0.1em; margin-bottom: 0.4rem; }
.timeline-step h4 { font-size: 0.95rem; margin-bottom: 0.35rem; }
.timeline-step p { font-size: 0.78rem; color: var(--text-muted); }

/* ---------------------------------------------------------
   12. TECHNOLOGIES
--------------------------------------------------------- */
.tech__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: var(--space-sm);
}
.tech-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  padding: var(--space-md) var(--space-sm);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  transition: transform var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), opacity var(--dur-med) var(--ease);
}
.tech-chip:hover { transform: translateY(-4px) scale(1.03); border-color: var(--border-strong); }
.tech-chip img, .tech-chip svg { width: 34px; height: 34px; }
.tech-chip span { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-secondary); }

/* ---------------------------------------------------------
   13. TESTIMONIALS
--------------------------------------------------------- */
.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.testimonial-card {
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.testimonial-card__stars { color: var(--blue); font-size: 0.85rem; letter-spacing: 0.15em; }
.testimonial-card__quote { color: var(--text-secondary); font-size: 0.95rem; flex: 1; }
.testimonial-card__author { display: flex; align-items: center; gap: 0.75rem; }
.avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: linear-gradient(140deg, var(--blue), var(--blue-dark));
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  color: #08171D;
}
.testimonial-card__author strong { display: block; font-size: 0.9rem; }
.testimonial-card__author span { font-size: 0.78rem; color: var(--text-muted); }

/* ---------------------------------------------------------
   14. FINAL CTA
--------------------------------------------------------- */
.cta-final {
  border-radius: var(--radius-lg);
  padding: var(--space-2xl) var(--space-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-strong);
  background:
    radial-gradient(ellipse 600px 300px at 50% 0%, rgba(var(--blue-rgb), 0.25), transparent 70%),
    var(--bg-elevated);
}
.cta-final h2 { font-size: var(--fs-h1); margin-bottom: var(--space-sm); }
.cta-final p { color: var(--text-secondary); max-width: 480px; margin-inline: auto; margin-bottom: var(--space-lg); }

/* ---------------------------------------------------------
   15. CONTACT
--------------------------------------------------------- */
.contact__grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-xl);
}
.contact__info { display: flex; flex-direction: column; gap: var(--space-md); }
.contact__item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  transition: border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.contact__item:hover { border-color: var(--border-strong); transform: translateX(4px); }
.contact__item__icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: grid; place-items: center;
  background: rgba(var(--blue-rgb), 0.12);
  color: var(--blue);
  flex-shrink: 0;
}
.contact__item h4 { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; margin-bottom: 0.15rem; }
.contact__item p, .contact__item a { font-size: 0.98rem; font-weight: 500; }

.form {
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  backdrop-filter: blur(10px);
}
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-md); }
.field { margin-bottom: var(--space-md); display: flex; flex-direction: column; gap: 0.4rem; }
.field label { font-size: 0.8rem; color: var(--text-muted); font-family: var(--font-mono); }
.field input, .field textarea {
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: rgba(255,255,255,0.03);
  color: var(--white);
  transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}
.field input::placeholder, .field textarea::placeholder { color: var(--text-muted); }
.field input:focus, .field textarea:focus { border-color: var(--blue); background: rgba(255,255,255,0.05); outline: none; }
.field textarea { resize: vertical; min-height: 110px; }
/* Validação inline (mensagens injetadas em initContactForm) */
.field input.is-invalid, .field textarea.is-invalid { border-color: #FF8A80; }
.field__error {
  display: none;
  font-size: 0.75rem;
  color: #FF8A80;
}
.field__error:not(:empty) { display: block; }
.form__note { font-size: 0.78rem; color: var(--text-muted); margin-top: var(--space-sm); text-align: center; }
.form__status { font-size: 0.85rem; margin-top: var(--space-sm); min-height: 1.2em; }
.form__status.success { color: var(--blue-glow); }
.form__status.error { color: #FF8A80; }

/* ---------------------------------------------------------
   16. FOOTER
--------------------------------------------------------- */
.footer { padding-top: var(--space-2xl); padding-bottom: var(--space-lg); border-top: 1px solid var(--border-subtle); margin-top: var(--space-xl); }
.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
}
.footer__brand .brand { margin-bottom: var(--space-sm); }
.footer__brand p { color: var(--text-muted); font-size: 0.88rem; max-width: 300px; }
.footer h5 { font-size: 0.82rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); margin-bottom: var(--space-md); font-family: var(--font-mono); font-weight: 500; }
.footer__links { display: flex; flex-direction: column; gap: 0.65rem; }
.footer__links a { color: var(--text-secondary); font-size: 0.9rem; transition: color var(--dur-fast) var(--ease); }
.footer__links a:hover { color: var(--blue); }
.footer__social { display: flex; gap: 0.6rem; }
.footer__social a {
  width: 40px; height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
  display: grid; place-items: center;
  color: var(--text-secondary);
  transition: all var(--dur-fast) var(--ease);
}
.footer__social a:hover { border-color: var(--blue); color: var(--blue); transform: translateY(-3px); }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: var(--space-sm);
}
.footer__bottom a { color: var(--text-muted); }
.footer__bottom a:hover { color: var(--blue); }

/* ---------------------------------------------------------
   17. BACK TO TOP + WHATSAPP FLOAT
--------------------------------------------------------- */
.back-to-top {
  position: fixed;
  bottom: var(--space-md);
  right: var(--space-md);
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  color: var(--blue);
  display: grid; place-items: center;
  z-index: 150;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--dur-fast) var(--ease);
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--blue); color: #08171D; }

.whatsapp-float {
  position: fixed;
  bottom: var(--space-md);
  left: var(--space-md);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.8rem 1.1rem 0.8rem 0.8rem;
  border-radius: 999px;
  background: #1FBE5B;
  color: #08171D;
  z-index: 150;
  box-shadow: 0 10px 26px -8px rgba(31, 190, 91, 0.55);
  font-weight: 600;
  font-size: 0.85rem;
  transition: transform var(--dur-fast) var(--ease);
}
.whatsapp-float:hover { transform: translateY(-3px); }
.whatsapp-float svg { width: 22px; height: 22px; }

/* ---------------------------------------------------------
   18. MOBILE NAV DRAWER
--------------------------------------------------------- */
@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .nav {
    position: fixed;
    inset: 0;
    top: var(--header-h);
    background: rgba(20, 22, 27, 0.98);
    backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    transform: translateX(100%);
    transition: transform var(--dur-med) var(--ease);
    z-index: 190;
  }
  .nav.is-open { transform: translateX(0); }
  .nav__list { flex-direction: column; text-align: center; gap: var(--space-lg); }
  .nav__list a { font-size: 1.3rem; }
  .header__actions .btn--ghost { display: none; }
}

/* ---------------------------------------------------------
   19. RESPONSIVE
--------------------------------------------------------- */
@media (max-width: 1080px) {
  .portfolio__grid { grid-template-columns: repeat(2, 1fr); }
  .diff__grid { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; row-gap: var(--space-lg); }
}

@media (max-width: 960px) {
  .hero__grid { grid-template-columns: 1fr; text-align: center; }
  /* Com o layout empilhado o conteúdo ocupa a altura toda — o indicador
     de rolagem passaria por cima dos números do hero. */
  .hero__scroll { display: none; }
  .hero__visual { max-width: 380px; margin-inline: auto; order: -1; }
  .hero__subtitle { margin-inline: auto; }
  .hero__actions, .hero__meta { justify-content: center; }
  .about__grid { grid-template-columns: 1fr; }
  .about__pillars { grid-template-columns: 1fr; }
  .contact__grid { grid-template-columns: 1fr; }
  .testimonials__grid { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: repeat(3, 1fr); row-gap: var(--space-lg); }
  .timeline::before { display: none; }
}

@media (max-width: 640px) {
  :root { --space-2xl: 4.5rem; --space-xl: 2.75rem; }
  .hero__meta { gap: var(--space-sm); }
  .hero__meta div + div { padding-left: var(--space-sm); }
  .portfolio__grid { grid-template-columns: 1fr; }
  .diff__grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
  .whatsapp-float span { display: none; }
  .whatsapp-float { padding: 0.8rem; }
}