/* ==========================================================================
   Portfólio — Pedro Paulo Lopes Alves
   Stylesheet organizado por seção. Mobile-first.
   ========================================================================== */

/* === Reset & base ======================================================= */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: clip; /* rede de segurança contra scroll horizontal (iOS) */
}

body {
  margin: 0;
  font-family: 'JetBrains Mono', 'Consolas', ui-monospace, monospace;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.72;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background-color .35s ease, color .35s ease;
}

h1, h2, h3, h4 {
  font-family: 'JetBrains Mono', 'Consolas', monospace;
  font-weight: 700;
  line-height: 1.2;
  margin: 0;
  letter-spacing: -0.02em;
}

p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

a {
  color: inherit;
  text-decoration: none;
  transition: color .2s ease;
}

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

/* Foco visível e acessível em qualquer elemento interativo */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: 1rem;
  top: -100px;
  z-index: 1000;
  padding: .6rem 1rem;
  background: var(--accent);
  color: #04121c;
  font-weight: 600;
  border-radius: 8px;
  transition: top .2s ease;
}
.skip-link:focus { top: 1rem; }

/* === Tokens / temas ===================================================== */
:root,
html[data-theme='dark'] {
  --bg: #050812;
  --bg-2: #0C1220;
  --card: #101827;
  --card-hover: #131F33;
  --text: #F8FAFC;
  --text-2: #94A3B8;
  --text-soft: #7C8BA1;
  --accent: #38BDF8;
  --accent-2: #22C55E;
  --border: rgba(148, 163, 184, 0.16);
  --border-strong: rgba(148, 163, 184, 0.28);

  --glass: rgba(12, 18, 32, 0.72);
  --shadow: 0 18px 40px -22px rgba(0, 0, 0, 0.85);
  --shadow-hover: 0 26px 60px -24px rgba(56, 189, 248, 0.28);
  --grad: linear-gradient(120deg, var(--accent), var(--accent-2));

  --container: 1180px;
  --radius: 16px;
  --radius-lg: 22px;
  --section-pad: clamp(3.5rem, 8vw, 8rem);
}

/* Tema claro (override dos mesmos tokens) */
html[data-theme='light'] {
  --bg: #F4F7FB;
  --bg-2: #FFFFFF;
  --card: #FFFFFF;
  --card-hover: #FFFFFF;
  --text: #0B1220;
  --text-2: #475569;
  --text-soft: #5B6675;
  --accent: #0284C7;
  --accent-2: #16A34A;
  --border: rgba(15, 23, 42, 0.12);
  --border-strong: rgba(15, 23, 42, 0.2);

  --glass: rgba(255, 255, 255, 0.78);
  --shadow: 0 18px 40px -26px rgba(15, 23, 42, 0.3);
  --shadow-hover: 0 26px 60px -28px rgba(2, 132, 199, 0.32);
}

/* === Tipografia & utilitários =========================================== */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.section {
  padding-block: var(--section-pad);
  scroll-margin-top: 84px; /* compensa o header fixo no smooth scroll */
}
.section--alt { background: var(--bg-2); }

.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-header { max-width: 680px; margin-bottom: 2.75rem; }
.section-header--center { margin-inline: auto; text-align: center; }

.eyebrow {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: .8rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .85rem;
}

.section-title {
  font-size: clamp(1.7rem, 4vw, 2.6rem);
}

.section-lead {
  margin-top: 1rem;
  color: var(--text-2);
  font-size: 1.05rem;
}

.group-title {
  display: flex;
  align-items: center;
  gap: .7rem;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 1.5rem;
}
.group-bar {
  width: 26px; height: 4px; border-radius: 4px;
  background: var(--accent);
}
.group-bar--green { background: var(--accent-2); }

/* Chips / tags */
.tags, .chips {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}
.tags li, .chips li {
  font-size: .78rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-2);
  padding: .28rem .65rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.06);
  transition: border-color .2s ease, color .2s ease, transform .2s ease, background-color .2s ease;
}
.tags li:hover, .chips li:hover {
  color: var(--text);
  border-color: var(--accent);
  transform: translateY(-2px);
}

/* Botões */
.btn {
  --btn-bg: transparent;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-weight: 600;
  font-size: .95rem;
  padding: .8rem 1.35rem;
  border-radius: 12px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .25s ease, background-color .25s ease,
    border-color .25s ease, color .2s ease, opacity .2s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn svg { flex: none; }

.btn-sm { padding: .55rem 1rem; font-size: .85rem; border-radius: 10px; }

.btn-primary {
  background: var(--grad);
  color: #03121d;
  box-shadow: 0 10px 26px -14px rgba(56, 189, 248, 0.7);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 38px -14px rgba(56, 189, 248, 0.7);
}

.btn-ghost {
  background: rgba(148, 163, 184, 0.04);
  border-color: var(--border-strong);
  color: var(--text);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* Microinteração nos ícones dos botões */
.btn svg { transition: transform .25s ease; }
.btn:hover svg { transform: translateY(-1px); }

/* === Header / Nav ======================================================= */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: transparent;
  transition: background-color .3s ease, border-color .3s ease, backdrop-filter .3s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: var(--glass);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 68px;
}

.logo {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 1.18rem;
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: baseline;
}
.logo-caret {
  color: var(--accent);
  margin-left: 2px;
  animation: blink 1.15s steps(1) infinite;
}

.nav-list { display: flex; gap: .35rem; }
.nav-link {
  position: relative;
  padding: .5rem .85rem;
  border-radius: 9px;
  color: var(--text-2);
  font-weight: 500;
  font-size: .95rem;
}
.nav-link:hover { color: var(--text); }
.nav-link[aria-current='true'] { color: var(--accent); }
.nav-link[aria-current='true']::after {
  content: '';
  position: absolute;
  left: .85rem; right: .85rem; bottom: .25rem;
  height: 2px; border-radius: 2px;
  background: var(--accent);
}

.header-actions { display: flex; align-items: center; gap: .65rem; }

.theme-toggle {
  display: inline-grid;
  place-items: center;
  width: 40px; height: 40px;
  border-radius: 11px;
  border: 1px solid var(--border-strong);
  background: rgba(148, 163, 184, 0.05);
  color: var(--text);
  cursor: pointer;
  transition: border-color .2s ease, color .2s ease, background-color .2s ease;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
html[data-theme='light'] .theme-toggle .icon-sun { display: block; }
html[data-theme='light'] .theme-toggle .icon-moon { display: none; }

/* Hambúrguer */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px; height: 42px;
  padding: 0 9px;
  border-radius: 11px;
  border: 1px solid var(--border-strong);
  background: rgba(148, 163, 184, 0.05);
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text);
  border-radius: 2px;
  transition: transform .3s ease, opacity .25s ease;
}
.menu-toggle[aria-expanded='true'] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded='true'] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded='true'] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgba(2, 6, 16, 0.55);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
}

/* === Hero =============================================================== */
.hero {
  position: relative;
  padding-top: clamp(7rem, 14vh, 10rem);
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -20%; right: -10%;
  width: 60vw; height: 60vw;
  max-width: 760px; max-height: 760px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.16), transparent 62%);
  transform: translate3d(0, calc(var(--py, 0) * 1px), 0);
  will-change: transform;
  pointer-events: none;
  z-index: 0;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -25%; left: -15%;
  width: 50vw; height: 50vw;
  max-width: 620px; max-height: 620px;
  background: radial-gradient(circle, rgba(34, 197, 94, 0.12), transparent 60%);
  transform: translate3d(0, calc(var(--py, 0) * -0.5px), 0);
  will-change: transform;
  pointer-events: none;
  z-index: 0;
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 3rem;
  align-items: center;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-size: .85rem;
  color: var(--text-2);
  padding: .45rem .9rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.05);
}
.tag-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.6);
  animation: pulse 2s infinite;
}

.hero-title {
  margin-top: 1.4rem;
  font-size: clamp(2.1rem, 6vw, 3.7rem);
  letter-spacing: -0.03em;
}
.hero-subtitle {
  margin-top: 1.4rem;
  max-width: 560px;
  color: var(--text-2);
  font-size: 1.08rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
  margin-top: 2rem;
}
.hero-cv-link {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  margin-top: 1.1rem;
  color: var(--text-2);
  font-size: .9rem;
  font-weight: 500;
}
.hero-cv-link svg { color: var(--accent); }
.hero-cv-link:hover { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }

.hero-facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: .7rem;
  margin-top: 2.4rem;
}
.hero-facts li {
  display: flex;
  align-items: center;
  gap: .6rem;
  color: var(--text-2);
  font-size: .92rem;
}
.hero-facts svg { color: var(--accent); flex: none; }

/* Terminal / cartão de código */
.terminal {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(16, 24, 39, 0.95), rgba(8, 13, 24, 0.95));
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--border);
  background: rgba(148, 163, 184, 0.04);
}
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot-red { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green { background: #28c840; }
.terminal-title {
  margin-left: .5rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: .8rem;
  color: var(--text-soft);
}
.terminal-body {
  margin: 0;
  padding: 1.3rem 1.4rem;
  font-family: 'JetBrains Mono', 'Consolas', monospace;
  font-size: clamp(.74rem, 2.6vw, .86rem); /* encolhe no mobile */
  line-height: 1.85;
  color: var(--text);
  /* pre-wrap: mantém a indentação, mas quebra linhas longas em vez de cortá-las.
     Em telas largas cada statement continua numa linha só. */
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.c-key { color: #c084fc; }
.c-var { color: var(--accent); }
.c-prop { color: #7dd3fc; }
.c-str { color: var(--accent-2); }
.c-op { color: var(--text-2); }
.c-caret {
  display: inline-block;
  width: 8px; height: 1.05em;
  margin-left: 2px;
  vertical-align: text-bottom;
  background: var(--accent);
  animation: blink 1.1s steps(1) infinite;
}
.status { display: inline-flex; align-items: center; gap: .45rem; }
.status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent-2);
  animation: pulse-soft 1.8s infinite;
}
.status-dot.cyan { background: var(--accent); }

/* Ilustração do hero (avatar dev) */
.hero-figure {
  position: relative;
  margin: 0;
  max-width: 460px;
  margin-inline: auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: 0 30px 80px -30px rgba(56, 189, 248, 0.35), var(--shadow);
  animation: float 6s ease-in-out infinite;
}
/* Borda em gradiente sutil */
.hero-figure::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  padding: 1.5px;
  background: linear-gradient(140deg, var(--accent), transparent 42%, transparent 58%, var(--accent-2));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  z-index: 2;
}
.hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: cover;
}
.hero-figure-status {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .9rem;
  padding: 1.6rem 1.2rem .9rem;
  background: linear-gradient(transparent, rgba(5, 8, 18, 0.94));
  font-family: 'JetBrains Mono', monospace;
  font-size: .74rem;
  color: #cbd5e1;
  z-index: 1;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* === Projetos =========================================================== */
.project-card {
  position: relative;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .28s ease, border-color .28s ease, box-shadow .3s ease, background-color .28s ease;
}
/* Linha de destaque que cresce no hover */
.project-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s ease;
  z-index: 3;
}
.project-card:hover {
  transform: translateY(-6px);
  background: var(--card-hover);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-hover);
}
.project-card:hover::after { transform: scaleX(1); }

.project-media {
  position: relative;
  aspect-ratio: 8 / 5;
  background: linear-gradient(135deg, var(--bg-2), var(--card));
  overflow: hidden;
}
.project-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.project-card:hover .project-media img { transform: scale(1.04); }

.project-body {
  display: flex;
  flex-direction: column;
  gap: .9rem;
  padding: 1.5rem;
  flex: 1;
}
.project-title { font-size: 1.18rem; }
.project-desc { color: var(--text-2); font-size: .96rem; }
.project-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: auto;
  padding-top: .4rem;
}

/* Card CTA "seu projeto pode ser o próximo" */
.project-card--cta {
  background:
    radial-gradient(120% 120% at 0% 0%, rgba(56, 189, 248, 0.12), transparent 55%),
    var(--card);
  border-style: dashed;
  border-color: var(--border-strong);
}
.cta-badge {
  align-self: flex-start;
  font-family: 'JetBrains Mono', monospace;
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent-2);
  padding: .25rem .6rem;
  border: 1px solid rgba(34, 197, 94, 0.35);
  border-radius: 999px;
  background: rgba(34, 197, 94, 0.08);
}

/* Cards de dados (sem mídia, com ícone) */
.project-card--data .project-body { padding-top: 1.6rem; }
.data-icon {
  display: inline-grid;
  place-items: center;
  width: 46px; height: 46px;
  border-radius: 12px;
  color: var(--accent);
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.22);
}

/* === Carrossel scroll-snap (subgrupos de projetos) ===================== */
.carousel { position: relative; }
.carousel--spaced { margin-top: 3.5rem; }

.carousel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.carousel-head .group-title { margin: 0; }

.carousel-nav { display: none; gap: .5rem; }

.carousel-btn {
  display: inline-grid;
  place-items: center;
  width: 40px; height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  background: rgba(148, 163, 184, 0.04);
  color: var(--text);
  cursor: pointer;
  transition: transform .2s ease, border-color .2s ease, color .2s ease,
    background-color .2s ease, opacity .2s ease;
}
.carousel-btn:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.carousel-btn:active:not(:disabled) { transform: translateY(0); }
.carousel-btn:disabled { opacity: .35; cursor: default; }
.carousel-btn svg { width: 18px; height: 18px; }

/* Trilha rolável: 1 card (+ peek) no mobile → mais cards conforme a largura.
   Basta adicionar <article class="project-card"> que o overflow é tratado. */
.cards-rail {
  --rail-gap: 1.4rem;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 86%;
  gap: var(--rail-gap);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  overscroll-behavior-x: contain;
  /* respiro vertical: o hover levanta o card (-6px) e há sombra a absorver;
     o padding lateral evita corte do foco e é compensado pela margem negativa */
  padding: .5rem .25rem 1rem;
  margin-inline: -.25rem;
  scrollbar-width: none;            /* Firefox */
  -webkit-overflow-scrolling: touch;
}
.cards-rail::-webkit-scrollbar { display: none; }  /* WebKit */

.cards-rail > .project-card {
  min-width: 0;
  scroll-snap-align: start;
}

/* === Stack ============================================================== */
.stack-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
  margin-bottom: 2.75rem;
}
/* min-width:0 impede o blowout do grid (a coluna do terminal não força a
   linha a ficar mais larga que o container e cortar texto/cartão) */
.stack-top > * { min-width: 0; }
.stack-top .section-header { margin-bottom: 0; max-width: none; }
.stack-top .terminal { width: 100%; max-width: 100%; }

.stack-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.4rem;
}

.stack-card {
  padding: 1.6rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  transition: transform .28s ease, border-color .28s ease, box-shadow .3s ease, background-color .28s ease;
}
.stack-card:hover {
  transform: translateY(-5px);
  background: var(--card-hover);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-hover);
}
.stack-card-title {
  display: flex;
  align-items: center;
  gap: .65rem;
  font-size: 1.08rem;
  font-weight: 600;
  margin-bottom: 1.15rem;
}

/* Card IA em destaque (borda em gradiente + brilho) */
.stack-card--ai {
  position: relative;
  padding: 0;
  background: transparent;
  border: none;
  grid-column: 1 / -1;
}
.stack-card--ai::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  padding: 1.5px;
  background: linear-gradient(120deg, var(--accent), var(--accent-2), #c084fc);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.stack-card--ai::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius);
  background: radial-gradient(60% 120% at 100% 0%, rgba(56, 189, 248, 0.18), transparent 60%),
    radial-gradient(60% 120% at 0% 100%, rgba(34, 197, 94, 0.14), transparent 60%);
  pointer-events: none;
  z-index: -1;
}
.stack-card--ai:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.ai-inner {
  position: relative;
  padding: 1.9rem;
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(16, 24, 39, 0.96), rgba(9, 14, 26, 0.96));
}
html[data-theme='light'] .ai-inner {
  background: linear-gradient(160deg, #ffffff, #f3f8ff);
}
.ai-head {
  display: flex;
  align-items: center;
  gap: .8rem;
  margin-bottom: 1rem;
}
.ai-icon {
  display: inline-grid;
  place-items: center;
  width: 42px; height: 42px;
  border-radius: 12px;
  color: #fff;
  background: var(--grad);
  box-shadow: 0 0 24px -6px rgba(56, 189, 248, 0.6);
}
.stack-card-title--ai { font-size: 1.2rem; margin: 0; }
.ai-text { color: var(--text-2); font-size: 1rem; margin-bottom: 1.2rem; max-width: 60ch; }
.chips--ai li {
  border-color: rgba(56, 189, 248, 0.3);
  color: var(--text);
  background: rgba(56, 189, 248, 0.07);
}

/* === Experiência (timeline) ============================================ */
.timeline {
  position: relative;
  padding-left: 1.75rem;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 6px; top: 6px; bottom: 6px;
  width: 2px;
  background: linear-gradient(var(--accent), var(--accent-2), transparent);
  opacity: .6;
}
.timeline-item {
  position: relative;
  padding-bottom: 2rem;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-marker {
  position: absolute;
  left: -1.75rem; top: 6px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--bg);
  border: 3px solid var(--accent);
  box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.12);
}
.timeline-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  padding: 1.4rem 1.5rem;
  transition: transform .25s ease, border-color .25s ease, background-color .25s ease, box-shadow .3s ease;
}
.timeline-card:hover {
  transform: translateX(4px);
  border-color: var(--border-strong);
  background: var(--card-hover);
  box-shadow: var(--shadow);
}
.timeline-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  margin-bottom: .35rem;
}
.timeline-role { font-size: 1.15rem; }
.period {
  font-family: 'JetBrains Mono', monospace;
  font-size: .76rem;
  color: var(--accent);
  padding: .25rem .6rem;
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.07);
  white-space: nowrap;
}
.timeline-company {
  color: var(--text);
  font-weight: 600;
  font-size: .95rem;
  margin-bottom: .6rem;
}
.timeline-desc { color: var(--text-2); font-size: .96rem; }

/* === Formação ========================================================== */
.formacao-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.4rem;
}
.edu-card, .cert-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  padding: 1.6rem;
  transition: transform .25s ease, border-color .25s ease, background-color .25s ease;
}
.edu-card:hover, .cert-card:hover { transform: translateY(-4px); border-color: var(--border-strong); background: var(--card-hover); }
.edu-badge {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent-2);
  padding: .25rem .6rem;
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 999px;
  margin-bottom: 1rem;
}
.edu-title { font-size: 1.3rem; }
.edu-org { color: var(--text); font-weight: 600; margin-top: .35rem; }
.edu-period { color: var(--text-2); font-size: .9rem; margin-top: .2rem; font-family: 'JetBrains Mono', monospace; }

.cert-heading { font-size: 1.1rem; margin-bottom: 1.1rem; }
.cert-list { display: grid; gap: .95rem; }
.cert-list li {
  display: flex;
  flex-direction: column;
  gap: .15rem;
  padding-left: 1.1rem;
  position: relative;
}
.cert-list li::before {
  content: '';
  position: absolute;
  left: 0; top: .55em;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
}
.cert-name { font-weight: 600; font-size: .98rem; }
.cert-meta { color: var(--text-2); font-size: .85rem; }

/* === Sobre ============================================================= */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: start;
}
.about-text { color: var(--text-2); margin-top: 1.1rem; font-size: 1.03rem; max-width: 65ch; }
.about-content .eyebrow { margin-top: 0; }

.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 2.2rem;
}
.stat-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--card);
  padding: 1.1rem 1.2rem;
  transition: transform .25s ease, border-color .25s ease, background-color .25s ease;
}
.stat-card:hover { transform: translateY(-4px); border-color: var(--border-strong); background: var(--card-hover); }
.stat-card strong {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.6rem;
  color: var(--accent);
  line-height: 1;
}
.stat-card span { display: block; margin-top: .45rem; color: var(--text-2); font-size: .88rem; }

.profile {
  position: relative;
  margin: 0;
  max-width: 420px;
  margin-inline: auto; /* evita que o avatar estoure em telas médias (1 coluna) */
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--card);
  box-shadow: var(--shadow);
}
.profile img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.profile-cap {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  display: flex;
  flex-direction: column;
  gap: .15rem;
  padding: 1.2rem 1.3rem;
  background: linear-gradient(transparent, rgba(5, 8, 18, 0.92));
}
.profile-name { font-family: 'JetBrains Mono', monospace; font-weight: 700; color: #fff; }
.profile-role { color: #cbd5e1; font-size: .85rem; }

/* === Contato =========================================================== */
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .8rem;
  margin-bottom: 3rem;
}
.contact-info {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  max-width: 640px;
  margin-inline: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--border);
}
.contact-info li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  padding: 1rem 1.3rem;
  background: var(--card);
}
.ci-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-soft);
}
.contact-info a:hover { color: var(--accent); }
/* Evita que o e-mail (token sem espaços) estoure a linha em telas estreitas */
.contact-info li > a,
.contact-info li > span:last-child { min-width: 0; overflow-wrap: anywhere; }
.discord-handle { font-family: 'JetBrains Mono', monospace; color: var(--text); }
.js-copy-discord { cursor: pointer; }
.js-copy-discord.copied { border-color: var(--accent-2); color: var(--accent-2); }

/* === Footer ============================================================ */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-2);
  padding-block: 2rem;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.footer-copy { color: var(--text-2); font-size: .9rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1.2rem; }
.footer-links a { color: var(--text-2); font-size: .9rem; }
.footer-links a:hover { color: var(--accent); }

/* === Animações de entrada ============================================== */
/* Reveal baseado em animation (não toca em `transition`, preservando os
   hovers dos componentes). Escondido só quando há JS (.js) → sem JS, tudo
   aparece normalmente. O atraso do stagger vem de --reveal-delay (setado no JS). */
.js [data-animate] { opacity: 0; }
.js [data-animate].is-visible {
  animation: reveal-up .7s cubic-bezier(.22, .61, .36, 1) both;
  animation-delay: var(--reveal-delay, 0ms);
}

/* Entrada do hero em sequência (acima da dobra → roda no load, sem depender do JS) */
.hero-content > * { animation: reveal-up .7s cubic-bezier(.22, .61, .36, 1) both; }
.hero-content > *:nth-child(1) { animation-delay: .10s; }
.hero-content > *:nth-child(2) { animation-delay: .18s; }
.hero-content > *:nth-child(3) { animation-delay: .26s; }
.hero-content > *:nth-child(4) { animation-delay: .34s; }
.hero-content > *:nth-child(5) { animation-delay: .42s; }
.hero-content > *:nth-child(6) { animation-delay: .50s; }

/* Timeline: a linha "desenha" ao entrar na viewport (itens fazem stagger à parte) */
.js .timeline::before { transform: scaleY(0); transform-origin: top; transition: transform .9s ease; }
.js .timeline[data-animate] { opacity: 1; }
.timeline[data-animate].is-visible { animation: none; }
.timeline.is-visible::before { transform: scaleY(1); }

@keyframes reveal-up {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: none; }
}

@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.55); }
  70% { box-shadow: 0 0 0 9px rgba(34, 197, 94, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}
@keyframes pulse-soft {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .4; transform: scale(.8); }
}

/* === Responsivo (mobile-first → up) ==================================== */
@media (max-width: 860px) {
  .nav {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(82vw, 320px);
    z-index: 95;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 5rem 1.75rem 2rem;
    background: var(--bg-2);
    border-left: 1px solid var(--border);
    transform: translateX(110%);
    transition: transform .32s cubic-bezier(.4, 0, .2, 1);
  }
  .nav.open { transform: translateX(0); }
  .nav-list { flex-direction: column; gap: .35rem; }
  .nav-link { display: block; padding: .8rem 1rem; font-size: 1.05rem; }
  .nav-link[aria-current='true']::after { display: none; }

  .menu-toggle { display: flex; }
  .cv-link { display: none; }

  body.nav-open { overflow: hidden; }
}

/* Alvos de toque maiores e grade de stats mais respirada no mobile */
@media (max-width: 600px) {
  .theme-toggle, .menu-toggle { width: 44px; height: 44px; }
  /* Garante área de toque ≥ 44px (WCAG/HIG) em todos os botões no mobile */
  .btn { min-height: 44px; }
  .btn-sm { padding-block: .72rem; min-height: 44px; }
}
@media (max-width: 380px) {
  .stats { grid-template-columns: 1fr; }
}

@media (min-width: 600px) {
  .cards-rail { grid-auto-columns: calc((100% - var(--rail-gap)) / 2); }
  .formacao-grid { grid-template-columns: 1fr 1.3fr; }
  .hero-facts { grid-template-columns: 1fr 1fr; }
  .stack-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 940px) {
  .hero-grid { grid-template-columns: 1.05fr .95fr; gap: 3.5rem; }
  .about-grid { grid-template-columns: 1.4fr 1fr; gap: 3.5rem; }
  .cards-rail { grid-auto-columns: calc((100% - 2 * var(--rail-gap)) / 3); }
  .carousel-nav { display: inline-flex; }
  .carousel-nav[hidden] { display: none; }
  .stack-grid { grid-template-columns: repeat(3, 1fr); }
  .stack-top { grid-template-columns: 1.1fr .9fr; gap: 3rem; }
}

/* === Acessibilidade / motion =========================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-delay: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    transition-delay: 0s !important;
  }
  .js [data-animate], .hero-content > * { opacity: 1 !important; transform: none !important; animation: none !important; }
}