/* ============================================================
   ISAQUE — Portfolio
   Inspired by Surfsky / Behance dark editorial aesthetic
   ============================================================ */

/* --- TOKENS --- */
:root {
  --clr-bg: #0a0a0a;
  --clr-surface: #111111;
  --clr-surface-2: #1a1a1a;
  --clr-border: rgba(255,255,255,0.1);
  --clr-border-hover: rgba(255,255,255,0.25);

  --clr-text: #f0ede8;
  --clr-text-muted: #7a7672;
  --clr-text-dim: #4a4845;

  /* Brand — retro warm palette */
  --clr-accent:    #e8a23a;   /* amber/gold */
  --clr-accent-2:  #d45a2a;   /* terracotta */
  --clr-teal:      #2a7a7a;   /* dark teal */
  --clr-teal-lt:   #3eb8b8;   /* light teal */
  --clr-green:     #4adb6f;   /* status green */
  --clr-amber:     #f0a830;   /* status amber */
  --clr-cyan:      #38c8d8;   /* status cyan */

  --font-sans: 'Space Grotesk', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Space Mono', monospace;

  /* Bordas praticamente quadradas, estilo editorial */
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 4px;

  --section-padding: clamp(4rem, 8vw, 8rem);
  --container-max: 1280px;

  --transition-fast: 150ms ease;
  --transition-med: 300ms ease;
}

/* --- RESET --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background-color: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

/* ============================================================
   DIAGONAL HATCH TOP PATTERN
   ============================================================ */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: repeating-linear-gradient(
    -45deg,
    var(--clr-text) 0,
    var(--clr-text) 1px,
    transparent 0,
    transparent 50%
  );
  background-size: 8px 8px;
  z-index: 9999;
  pointer-events: none;
}

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed;
  top: 4px;
  left: 0; right: 0;
  z-index: 100;
  background-color: var(--clr-bg);
  border-bottom: 1px solid var(--clr-border);
  padding: 0 clamp(1.25rem, 4vw, 3rem);
}

.nav__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  gap: 1rem;
}

.nav__menu {
  display: flex;
  flex: 1;
  justify-content: space-between;
  align-items: center;
}

.nav__links {
  display: flex;
  gap: 2rem;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-right: 1.5rem;
}

.nav__link {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--clr-text-muted);
  transition: color var(--transition-fast);
  text-transform: uppercase;
}

.nav__link:hover,
.nav__link--active {
  color: var(--clr-accent);
}

.nav__hamburger {
  display: none;
  background: transparent;
  color: var(--clr-text);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: var(--radius-sm);
}

.nav__right { display: flex; align-items: center; gap: 1rem; }
.nav__name {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--clr-text-muted);
  display: none;
}

@media (max-width: 850px) {
  .nav__hamburger { display: block; }
  
  .nav__menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--clr-bg);
    border-bottom: 1px solid var(--clr-border);
    flex-direction: column;
    gap: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-med);
  }
  
  .nav__links {
    display: flex;
    flex-direction: column;
  }
  
  .nav__actions {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    padding: 1.5rem;
    margin: 0;
    border-top: 1px solid rgba(255,255,255,0.05);
  }
  
  [data-theme="light"] .nav__actions {
    border-top: 1px solid rgba(60,50,35,0.08);
  }
  
  .nav__menu--open {
    max-height: 400px;
  }
  
  .nav__link {
    display: block;
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.05);
  }
  [data-theme="light"] .nav__link { border-top: 1px solid rgba(60,50,35,0.08); }
}

@media (min-width: 850px) { .nav__name { display: block; } }


/* ============================================================
   TAGS & BADGES
   ============================================================ */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--clr-text-muted);
  transition: border-color var(--transition-fast), color var(--transition-fast);
}
.tag:hover { border-color: var(--clr-border-hover); color: var(--clr-text); }
.tag--sm { font-size: 0.6rem; padding: 0.2rem 0.55rem; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius-sm);
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  color: var(--clr-text-muted);
}
.badge--accent { background: rgba(232, 162, 58, 0.12); border-color: rgba(232, 162, 58, 0.35); color: var(--clr-accent); }
.badge--green  { background: rgba(74, 219, 111, 0.1);  border-color: rgba(74, 219, 111, 0.3);  color: var(--clr-green); }
.badge--cyan   { background: rgba(56, 200, 216, 0.1);  border-color: rgba(56, 200, 216, 0.3);  color: var(--clr-cyan); }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  font-weight: 700;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn--primary {
  background: var(--clr-accent);
  color: #0a0a0a;
}
.btn--primary:hover { background: #f0b84a; transform: translateY(-1px); }

.btn--white {
  background: var(--clr-text);
  color: var(--clr-bg);
  padding: 0.85rem 2.25rem;
  font-size: 0.78rem;
}
.btn--white:hover { background: var(--clr-accent); transform: translateY(-2px); }

.btn--lg { padding: 1rem 2.5rem; font-size: 0.82rem; }

.btn__dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  height: 100svh;
  min-height: 600px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: 60px;
}

.hero__bg-wrapper {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg-img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center top;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10,10,10,0.35) 0%,
    rgba(10,10,10,0.2) 40%,
    rgba(10,10,10,0.7) 80%,
    rgba(10,10,10,1) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.hero__title {
  font-size: clamp(2rem, 15vw, 15rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  color: #fff;
  text-shadow: 0 4px 60px rgba(0,0,0,0.5);
  font-family: var(--font-sans);
}

.hero__subtitle {
  font-family: var(--font-mono);
  font-size: clamp(0.8rem, 1.6vw, 1.1rem);
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.75);
  text-transform: uppercase;
  margin-top: 0.5rem;
}

.hero__location {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  color: rgba(255,255,255,0.7);
}

.hero__loc-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--clr-green);
  animation: pulse 2s ease-in-out infinite;
}

/* Browser chrome decoration */
.hero__browser-chrome {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  width: min(500px, 90vw);
}

.browser-chrome {
  background: rgba(15,15,15,0.85);
  backdrop-filter: blur(12px);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.browser-chrome__controls { display: flex; gap: 6px; }
.dot {
  width: 10px; height: 10px;
  border-radius: 50%;
}
.dot--red    { background: #ff5f57; }
.dot--yellow { background: #febc2e; }
.dot--green  { background: #28c840; }

.browser-chrome__url {
  flex: 1;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--clr-text-muted);
  letter-spacing: 0.05em;
}

/* ============================================================
   TICKER
   ============================================================ */
.ticker {
  overflow: hidden;
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  border-bottom: 1px solid var(--clr-border);
  padding: 0.75rem 0;
  user-select: none;
}

.ticker__track {
  display: flex;
  gap: 2rem;
  width: max-content;
  animation: ticker-scroll 30s linear infinite;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--clr-text-muted);
}
.ticker__track span { white-space: nowrap; }
.ticker__sep { color: var(--clr-accent); }

@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .ticker__track { animation: none; }
}

/* ============================================================
   SECTIONS — BASE
   ============================================================ */
.section {
  padding: var(--section-padding) clamp(1.25rem, 4vw, 3rem);
  max-width: var(--container-max);
  margin: 0 auto;
  position: relative;
}

.section__header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 3.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--clr-border);
}

.section__num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--clr-text-dim);
  letter-spacing: 0.05em;
}

.section__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--clr-text-muted);
}

.section__heading {
  font-size: clamp(2.25rem, 5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--clr-text);
}

.section__heading--center { text-align: center; margin: 0 auto 4rem; }

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
}

@media (min-width: 900px) {
  .about-grid { grid-template-columns: 1.2fr 0.8fr; align-items: start; }
}

.about-grid__desc {
  color: var(--clr-text-muted);
  font-size: 1.05rem;
  line-height: 1.75;
  margin-bottom: 1.25rem;
}
.about-grid__desc strong { color: var(--clr-text); }

.about-grid__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 2rem;
}

.about-grid__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--clr-border);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.stat-card {
  background: var(--clr-surface);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  transition: background var(--transition-med);
}
.stat-card:hover { background: var(--clr-surface-2); }

.stat-card__num {
  font-size: 2.75rem;
  font-weight: 700;
  line-height: 1;
  color: var(--clr-accent);
  letter-spacing: -0.02em;
}
.stat-card__label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--clr-text-muted);
}

/* ============================================================
   TIMELINE
   ============================================================ */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.timeline__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--clr-border);
  position: relative;
  transition: padding-left var(--transition-med);
}

@media (min-width: 700px) {
  .timeline__item {
    grid-template-columns: 200px 1fr;
    gap: 2rem;
  }
}

.timeline__item::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 0;
  background: var(--clr-accent);
  transition: width var(--transition-med);
}
.timeline__item:hover::before { width: 2px; }
.timeline__item:hover { padding-left: 1rem; }

.timeline__period {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--clr-text-dim);
  letter-spacing: 0.05em;
  padding-top: 0.2rem;
}

.timeline__role {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--clr-text);
  margin-bottom: 0.25rem;
}
.timeline__company {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--clr-accent);
  margin-bottom: 0.75rem;
  letter-spacing: 0.05em;
}
.timeline__desc {
  color: var(--clr-text-muted);
  font-size: 0.9rem;
  line-height: 1.65;
  margin-bottom: 1rem;
}
.timeline__tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }

/* ============================================================
   STACK
   ============================================================ */
.section--stack { background: var(--clr-surface); max-width: none; }
.section--stack > * { max-width: var(--container-max); margin-inline: auto; }

.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px;
  background: var(--clr-border);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  max-width: var(--container-max);
  margin-inline: auto;
}

.stack-category {
  background: var(--clr-bg);
  padding: 2rem;
  transition: background var(--transition-med);
}
.stack-category:hover { background: var(--clr-surface-2); }

.stack-category__header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--clr-text-muted);
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--clr-border);
}

.stack-category__icon {
  font-size: 0.9rem;
  color: var(--clr-accent);
}

.stack-list { display: flex; flex-direction: column; gap: 0.9rem; }

.stack-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.stack-item__icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stack-item__icon img {
  width: 20px;
  height: 20px;
  object-fit: contain;
  filter: brightness(0.9);
}

/* Ícone textual fallback (quando não existe SVG) */
.stack-item__icon--text {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--clr-text-dim);
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 2px 3px;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stack-item__name {
  font-size: 0.88rem;
  color: var(--clr-text);
  white-space: nowrap;
  flex: 1;
}

.stack-item__bar {
  height: 3px;
  background: var(--clr-border);
  border-radius: 2px;
  overflow: hidden;
  width: 90px;
  flex-shrink: 0;
}

.stack-item__bar span {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--clr-teal-lt), var(--clr-accent));
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.stack-item__bar span.animated { width: var(--w); }

/* ============================================================
   CODE BLOCK — componente reutilizável estilo terminal
   ============================================================ */
.code-block {
  background: #0d0d0d;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.65;
}

.code-block__header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.55rem 1rem;
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.code-block__dots {
  display: flex;
  gap: 5px;
}

.code-block__filename {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--clr-text-muted);
  letter-spacing: 0.04em;
}

.code-block__body {
  padding: 1rem 1.25rem;
  overflow-x: auto;
  margin: 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.1) transparent;
}

.code-block__body code {
  display: block;
  color: #d4d0c8;  /* texto padrão — cinza claro */
  white-space: pre;
}

/* Highlight de sintaxe simples */
.code-block .ck  { color: #6eb4f7; } /* keyword — azul claro */
.code-block .cs  { color: #c8d654; } /* string — amarelo esverdeado */
.code-block .cn  { color: #d4d0c8; } /* nome/identifier — branco/cinza */
.code-block .cc  { color: #555250; } /* comentário — cinza escuro */

/* ============================================================
   PROJECTS
   ============================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--clr-border);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

@media (min-width: 700px) {
  .projects-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.project-card {
  background: var(--clr-surface);
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transition: background var(--transition-med);
  position: relative;
  overflow: hidden;
}
.project-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 0;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-accent-2));
  transition: height var(--transition-fast);
}
.project-card:hover { background: var(--clr-surface-2); }
.project-card:hover::after { height: 2px; }

.project-card--featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}
@media (max-width: 800px) {
  .project-card--featured {
    grid-template-columns: 1fr;
  }
}

.project-card__main {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.project-card--dark { background: var(--clr-surface-2); }

.project-card__header { display: flex; flex-direction: column; gap: 0.5rem; }

.project-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.project-card__num {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--clr-text-dim);
  letter-spacing: 0.1em;
}

.project-card__title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--clr-text);
}

.project-card__subtitle {
  font-size: 0.82rem;
  color: var(--clr-text-muted);
  font-family: var(--font-mono);
}

.project-card__desc {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
  flex: 1;
}

.project-card__footer {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: auto;
}

.project-card__tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.project-card__link {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--clr-teal-lt);
  letter-spacing: 0.05em;
  transition: color var(--transition-fast);
}
.project-card__link:hover { color: var(--clr-accent); }

.project-card__ascii {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 1rem;
  flex-shrink: 0;
}
.project-card__ascii pre {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
  white-space: pre;
}

.project-card__ascii--inline {
  border: none;
  background: none;
  padding: 0;
}
.project-card__ascii--inline pre { font-size: 0.72rem; }

/* ============================================================
   CERTIFICATIONS
   ============================================================ */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  background: var(--clr-border);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.cert-card {
  background: var(--clr-surface);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transition: background var(--transition-med);
}
.cert-card:hover { background: var(--clr-surface-2); }
.cert-card--obtained { border-top: 2px solid var(--clr-green); }
.cert-card--wip { border-top: 2px solid var(--clr-amber); }

.cert-card__status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--clr-text-muted);
}

.status-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}
.status-dot--green  { background: var(--clr-green);  animation: pulse 2s infinite; }
.status-dot--amber  { background: var(--clr-amber);  animation: pulse 3s infinite; }
.status-dot--cyan   { background: var(--clr-cyan); }

.cert-card__title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.cert-card__level {
  font-size: 0.82rem;
  color: var(--clr-text-muted);
  margin-top: 0.2rem;
}
.cert-card__org {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--clr-text-dim);
  margin-top: 0.5rem;
  letter-spacing: 0.05em;
}

/* ============================================================
   CTA / OBJETIVO
   ============================================================ */
.section--cta {
  --clr-text: #f0ede8;
  --clr-text-muted: rgba(240,237,232,0.65);
  --clr-bg: #0a0a0a;
  padding: 0;
  max-width: none;
  position: relative;
  overflow: hidden;
}

.cta-inner {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: var(--section-padding) clamp(1.25rem, 4vw, 3rem);
}

.cta-bg {
  position: absolute;
  inset: 0;
}
.cta-bg__img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 30%;
  filter: saturate(0.7) brightness(0.5);
}
.cta-bg__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(10,10,10,0.92) 0%,
    rgba(10,10,10,0.75) 50%,
    rgba(10,10,10,0.4) 100%
  );
}

.cta-content {
  position: relative;
  z-index: 1;
  max-width: 600px;
}

.cta__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--clr-accent);
  display: block;
  margin-bottom: 1.5rem;
}

.cta__heading {
  font-size: clamp(3rem, 7vw, 6rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  color: var(--clr-text);
}

.cta__desc {
  color: rgba(240,237,232,0.65);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 2.5rem;
  max-width: 440px;
}

/* ============================================================
   ABOUT PHOTO
   ============================================================ */
.about-grid__photo-col {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.about-photo {
  margin-top: 1px;
  position: relative;
  background: var(--clr-surface);
  padding: 0.75rem 0.75rem 3rem 0.75rem;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.about-photo__img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  display: block;
  border-radius: var(--radius-sm);
  filter: grayscale(0.15);
  transition: filter var(--transition-med);
}
.about-photo:hover .about-photo__img { filter: grayscale(0); }

.about-photo__caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--clr-text-muted);
  letter-spacing: 0.06em;
}

/* ============================================================
   CONTACT PHOTO
   ============================================================ */
.contact-photo {
  margin-top: 2rem;
  background: var(--clr-surface);
  padding: 0.75rem 0.75rem 3rem 0.75rem;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  max-width: 320px;
}

.contact-photo__img {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
  border-radius: var(--radius-sm);
  filter: grayscale(0.2);
  transition: filter var(--transition-med);
}
.contact-photo:hover .contact-photo__img { filter: grayscale(0); }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
}
@media (min-width: 800px) {
  .contact-grid { grid-template-columns: 1fr 1fr; }
}

.contact-desc {
  color: var(--clr-text-muted);
  font-size: 1rem;
  line-height: 1.7;
  margin-top: 1.5rem;
}

.contact-grid__links {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--clr-border);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  align-self: start;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: var(--clr-surface);
  transition: background var(--transition-fast), padding-left var(--transition-fast);
  text-decoration: none;
}
.contact-link:hover {
  background: var(--clr-surface-2);
  padding-left: 2rem;
}

.contact-link__icon {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text-muted);
  flex-shrink: 0;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}
.contact-link:hover .contact-link__icon {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
}

.contact-link__text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.contact-link__label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--clr-text-dim);
  letter-spacing: 0.08em;
}

.contact-link__value {
  font-size: 0.88rem;
  color: var(--clr-text);
}

.contact-link__arrow {
  color: var(--clr-text-dim);
  font-size: 0.9rem;
  transition: color var(--transition-fast), transform var(--transition-fast);
}
.contact-link:hover .contact-link__arrow { color: var(--clr-accent); transform: translateX(4px); }

.contact-location {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.25rem 1.5rem;
  background: var(--clr-surface);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--clr-text-muted);
  letter-spacing: 0.05em;
}

.contact-location__dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--clr-green);
  animation: pulse 2s infinite;
  flex-shrink: 0;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  border-top: 1px solid var(--clr-border);
  padding: 2.5rem clamp(1.25rem, 4vw, 3rem);
}

.footer__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer__left {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.footer__name {
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  font-size: 0.85rem;
}

.footer__tagline {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--clr-text-dim);
  letter-spacing: 0.05em;
}

.footer__center nav {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}
.footer__center nav a {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--clr-text-muted);
  letter-spacing: 0.08em;
  transition: color var(--transition-fast);
}
.footer__center nav a:hover { color: var(--clr-accent); }

.footer__right {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--clr-text-dim);
  letter-spacing: 0.05em;
}

/* ============================================================
   SCROLL REVEAL ANIMATIONS
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Delay variants */
.reveal-d1 { transition-delay: 0.1s; }
.reveal-d2 { transition-delay: 0.2s; }
.reveal-d3 { transition-delay: 0.3s; }
.reveal-d4 { transition-delay: 0.4s; }

/* ============================================================
   NAV SCROLL STATE
   ============================================================ */
.nav.scrolled {
  background: rgba(10,10,10,0.95);
  backdrop-filter: blur(12px);
}

/* ============================================================
   RESPONSIVE TWEAKS
   ============================================================ */
@media (max-width: 600px) {
  .hero__title { font-size: clamp(4rem, 25vw, 8rem); }
  .project-card { padding: 1.5rem; }
  .stat-card { padding: 1.5rem 1rem; }
  .stat-card__num { font-size: 2rem; }
  .footer__center { display: none; }
  .about-grid__stats { grid-template-columns: 1fr 1fr; }
}

/* ============================================================
   SELECTION
   ============================================================ */
::selection {
  background: var(--clr-accent);
  color: #0a0a0a;
}

/* ============================================================
   SCROLLBAR
   ============================================================ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--clr-bg); }
::-webkit-scrollbar-thumb {
  background: var(--clr-border-hover);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: var(--clr-accent); }

/* ============================================================
   FOCUS VISIBLE
   ============================================================ */
:focus-visible {
  outline: 2px solid var(--clr-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ============================================================
   LIGHT THEME — variáveis sobrescritas via data-theme="light"
   ============================================================ */
[data-theme="light"] {
  --clr-bg:           #f2ede4;
  --clr-surface:      #e9e1d3;
  --clr-surface-2:    #ddd2bd;
  --clr-border:       rgba(60,50,35,0.14);
  --clr-border-hover: rgba(60,50,35,0.30);
  --clr-text:         #2a2318;
  --clr-text-muted:   #6b624d;
  --clr-text-dim:     #a89b82;
  --painting-overlay-color: 242, 237, 228;
  --painting-overlay-opacity: 0.88;
}

[data-theme="dark"] {
  --painting-overlay-color: 10, 10, 10;
  --painting-overlay-opacity: 0.82;
}

/* body::before (hatch) adapta ao tema */
[data-theme="light"] body::before {
  background: repeating-linear-gradient(
    -45deg,
    var(--clr-text) 0,
    var(--clr-text) 1px,
    transparent 0,
    transparent 50%
  );
  background-size: 8px 8px;
}

[data-theme="light"] .nav.scrolled {
  background: rgba(242,237,228,0.95);
}

[data-theme="light"] .code-block {
  background: var(--clr-surface);
  border-color: rgba(60,50,35,0.1);
}
[data-theme="light"] .code-block__header {
  background: rgba(60,50,35,0.06);
  border-color: rgba(60,50,35,0.1);
}
[data-theme="light"] .code-block__body code { color: var(--clr-text); }
[data-theme="light"] .code-block .ck  { color: #1a5ca8; }
[data-theme="light"] .code-block .cs  { color: #455e00; }
[data-theme="light"] .code-block .cc  { color: var(--clr-text-muted); }

/* Selection */
[data-theme="light"] ::selection { color: #fff; }

/* Scrollbar */
[data-theme="light"] ::-webkit-scrollbar-track { background: var(--clr-bg); }

/* ============================================================
   SECTION COM PINTURA DE FUNDO
   ============================================================ */
.section--painting {
  position: relative;
  max-width: none;
  padding-left: 0;
  padding-right: 0;
}

.section--painting .section__inner {
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--section-padding) clamp(1.25rem, 4vw, 3rem);
}

.section__painting-overlay {
  position: absolute;
  inset: 0;
  background-image: var(--section-painting);
  background-size: cover;
  background-position: center;
  opacity: 0.12;
  z-index: 0;
  pointer-events: none;
  /* Overlay de cor de tema por cima da pintura */
  /* Usa pseudo-element para o overlay de cor */
}

/* Overlay de cor sólida — garante contraste WCAG AA */
.section--painting::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: var(--section-painting);
  background-size: cover;
  background-position: center;
  opacity: 0.09;
  z-index: 0;
  pointer-events: none;
}

/* Stack section tem fundo próprio — mantém mas adiciona pintura */
.section--stack.section--painting {
  background: var(--clr-surface);
}
.section--stack.section--painting > * { position: relative; z-index: 1; }

/* about-photo com pintura de fundo */
/* About: floresta como fundo da seção (florest.png) */
.section--forest { position: relative; isolation: isolate; }
.section--forest::before {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  width: 100vw;
  transform: translateX(-50%);
  background-image: var(--section-painting);
  background-size: cover;
  background-position: center;
  opacity: 0.09;
  z-index: -1;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(to bottom, transparent, #000 12%, #000 88%, transparent);
}
[data-theme="light"] .section--forest::before { opacity: 0.06; }

.about-photo__img { position: relative; z-index: 1; }
.about-photo__caption { z-index: 2; }

/* Formatos modernos para os fundos: AVIF → WebP → PNG.
   Sem suporte a image-set() com type(), fica o PNG definido acima. */
@supports (background-image: image-set(url("x.avif") type("image/avif"))) {
  .section__painting-overlay,
  .section--painting::before,
  .section--forest::before {
    background-image: var(--section-painting-set, var(--section-painting));
  }
}

/* <picture> não deve criar caixa própria (mantém o layout do <img>) */
.hero__bg-wrapper picture,
.cta-bg picture,
.about-photo picture,
.contact-photo picture { display: contents; }

/* ============================================================
   CERT TOOLTIP
   ============================================================ */
.cert-card {
  position: relative;  /* garante posicionamento do tooltip */
}

.cert-tooltip {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--clr-surface-2);
  padding: 1.5rem;
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--clr-text-muted);
  z-index: 10;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-med);
}

.cert-card:hover .cert-tooltip,
.cert-card:focus .cert-tooltip,
.cert-card:focus-within .cert-tooltip {
  opacity: 1;
  pointer-events: auto;
}



/* ============================================================
   LANG SWITCHER
   ============================================================ */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.lang-btn {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--clr-text-dim);
  padding: 0.25rem 0.4rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  cursor: pointer;
}

.lang-btn:hover { color: var(--clr-text-muted); }

.lang-btn--active {
  color: var(--clr-accent);
  background: rgba(232,162,58,0.1);
}

.lang-sep {
  color: var(--clr-text-dim);
  font-size: 0.6rem;
  user-select: none;
}

/* ============================================================
   THEME SWITCHER (3 options)
   ============================================================ */
.theme-switcher {
  display: flex;
  align-items: center;
  gap: 0;
  border-radius: var(--radius-sm);
  border: 1px solid var(--clr-border);
  background: transparent;
  overflow: hidden;
  flex-shrink: 0;
}

.theme-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  cursor: pointer;
  transition: background var(--transition-fast);
  border-right: 1px solid var(--clr-border);
}
.theme-btn:last-child {
  border-right: none;
}

.theme-btn:hover {
  background: var(--clr-surface-2);
}

.theme-btn--active {
  background: var(--clr-surface-2);
}
[data-theme="light"] .theme-btn--active { background: rgba(60,50,35,0.08); }

.theme-btn__icon {
  width: 14px;
  height: 14px;
  object-fit: contain;
  display: none;
  opacity: 0.5;
  transition: opacity var(--transition-fast);
}

.theme-btn:hover .theme-btn__icon,
.theme-btn--active .theme-btn__icon {
  opacity: 1;
}

/* Dark theme: show white icons */
[data-theme="dark"] .theme-btn__icon--white { display: block; }
[data-theme="dark"] .theme-btn__icon--dark  { display: none; }

/* Light theme: show dark icons */
[data-theme="light"] .theme-btn__icon--white { display: none; }
[data-theme="light"] .theme-btn__icon--dark  { display: block; }

/* ============================================================
   ACESSIBILIDADE (A11Y)
   ============================================================ */

/* Skip Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--clr-surface-2);
  color: var(--clr-text);
  padding: 8px 16px;
  z-index: 9999;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 0;
}

/* Prefers 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;
  }
}