/* ============================================================
   PORTFÓLIO — JOÃO PAULO  |  css/style.css
   Camadas:
     1. Reset
     2. Tokens (custom properties)
     3. Base
     4. Utilitários
     5. Componentes (navbar, botões, cards)
     6. Seções (hero → rodapé)
     7. Animações
     8. Responsivo
   ============================================================ */


/* ── 1. RESET ──────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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


/* ── 2. TOKENS ─────────────────────────────────────────────── */
:root {
  /* Paleta — light mode */
  --bg:           #f9f8f6;
  --surface:      #f2f0ec;
  --text:         #1a1a1a;
  --muted:        #888;
  --accent:       #1d4ed8;
  --accent-soft:  #e8eefb;
  --border:       #e5e3df;
  --deco:         #f0ede8;
  --skeleton-a:   #ede9e3;
  --skeleton-b:   #e5e1db;

  /* Tipografia */
  --font-serif: 'DM Serif Display', Georgia, serif;
  --font-sans:  'DM Sans', system-ui, sans-serif;

  /* Espaço */
  --nav-h:      60px;
  --gap-sec:    7rem;
  --w-max:      1100px;
  --pad-x:      clamp(1.25rem, 5vw, 3rem);
  --radius:     6px;

  /* Easing */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Dark mode — sobrescreve apenas cores */
[data-theme="dark"] {
  --bg:          #111110;
  --surface:     #1a1918;
  --text:        #e8e6e1;
  --muted:       #6b6b6b;
  --accent:      #4f7ef8;
  --accent-soft: #1a2340;
  --border:      #2a2926;
  --deco:        #1e1d1b;
  --skeleton-a:  #1e1d1b;
  --skeleton-b:  #252422;
}


/* ── 3. BASE ───────────────────────────────────────────────── */
html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Transição suave ao trocar tema — ativada só pelo JS */
body.tema-transicao,
body.tema-transicao *,
body.tema-transicao *::before,
body.tema-transicao *::after {
  transition:
    background-color 0.3s ease,
    border-color     0.3s ease,
    color            0.3s ease !important;
}


/* ── 4. UTILITÁRIOS ────────────────────────────────────────── */

/* Container centralizado */
.container {
  max-width: var(--w-max);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

/* Título de seção */
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 400;
  line-height: 1.15;
  margin-bottom: 2.5rem;
}

/* Subtítulo de seção */
.section-sub {
  font-size: 0.875rem;
  color: var(--muted);
  margin-top: -1.75rem;
  margin-bottom: 2.5rem;
}

/* Fade-in — estado inicial */
.fade-in {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity   0.7s var(--ease),
    transform 0.7s var(--ease);
}
.fade-in.visivel {
  opacity: 1;
  transform: none;
}

/* Delays não-redondos por seção */
#sobre.fade-in    { transition-delay: 0.10s; }
#skills.fade-in   { transition-delay: 0.23s; }
#projetos.fade-in { transition-delay: 0.41s; }
#andamento.fade-in{ transition-delay: 0.17s; }
#contato.fade-in  { transition-delay: 0.31s; }


/* ── 5. COMPONENTES ────────────────────────────────────────── */

/* ·· Botões de ação (CTA) ·· */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.65rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn-solid {
  background-color: var(--accent);
  color: #fff;
  border: 2px solid var(--accent);
}
.btn-solid:hover,
.btn-solid:focus-visible {
  background-color: #1a44c2;
  border-color: #1a44c2;
}

.btn-outline {
  background-color: transparent;
  color: var(--text);
  border: 2px solid var(--border);
}
.btn-outline:hover,
.btn-outline:focus-visible {
  border-color: var(--text);
}

/* ·· Botões de ícone (navbar) ·· */
.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--muted);
  cursor: pointer;
  padding: 0.35rem 0.55rem;
  transition: border-color 0.2s ease, color 0.2s ease;
  flex-shrink: 0;
}
.btn-icon:hover,
.btn-icon:focus-visible {
  border-color: var(--text);
  color: var(--text);
}

/* Rótulo do botão de idioma */
.btn-icon span {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1;
}

/* Ícones sol/lua — alternados pelo data-theme */
.icon-sol, .icon-lua { display: block; }
[data-theme="light"] .icon-sol { display: block; }
[data-theme="light"] .icon-lua { display: none;  }
[data-theme="dark"]  .icon-sol { display: none;  }
[data-theme="dark"]  .icon-lua { display: block; }

/* ·· Hamburguer ·· */
.btn-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  flex-shrink: 0;
}
.btn-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--text);
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.btn-hamburger.aberto span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.btn-hamburger.aberto span:nth-child(2) { opacity: 0; }
.btn-hamburger.aberto span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ·· Card de projeto ·· */
.projeto-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color 0.2s ease, transform 0.25s var(--ease);
}
.projeto-card:hover,
.projeto-card:focus-visible {
  border-color: var(--accent);
  transform: translateY(-3px);
  outline: none;
}

.projeto-nome {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 400;
  line-height: 1.2;
}
.projeto-desc {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.6;
  flex: 1;
}
.projeto-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--muted);
}
.projeto-lang {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.lang-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ·· Skeleton ·· */
.skeleton {
  border-radius: var(--radius);
  background: linear-gradient(
    90deg,
    var(--skeleton-a) 25%,
    var(--skeleton-b) 50%,
    var(--skeleton-a) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.4s ease infinite;
  min-height: 160px;
}
.skeleton-wide {
  grid-column: 1 / -1;
  min-height: 200px;
}


/* ── 6. SEÇÕES ─────────────────────────────────────────────── */

/* ·· Navbar ·· */
.navbar {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  background-color: var(--bg);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.navbar.scrolled {
  border-color: var(--border);
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.05);
}

.nav-inner {
  max-width: var(--w-max);
  margin-inline: auto;
  padding-inline: var(--pad-x);
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  /* Ancora o menu mobile */
  position: relative;
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
  /* Empurra para o centro */
  margin-inline: auto;
}
.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  transition: color 0.2s ease;
}
.nav-links a:hover,
.nav-links a:focus-visible { color: var(--text); }

.nav-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

/* ·· Hero ·· */
.hero {
  padding-block: calc(var(--nav-h) + 5rem) var(--gap-sec);
}

.hero-eyebrow {
  font-size: 0.875rem;
  font-weight: 300;
  color: var(--muted);
  letter-spacing: 0.02em;
  margin-bottom: 1.25rem;
}

.hero-headline {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 7vw, 5rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.hero-headline .line-muted  { font-style: italic; color: var(--muted); }
.hero-headline .line-strong { color: var(--text); }

.hero-badge {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--accent);
  background-color: var(--accent-soft);
  border-radius: var(--radius);
  padding: 0.4rem 0.85rem;
  margin-bottom: 2.5rem;
  letter-spacing: 0.01em;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.hero-social {
  display: flex;
  gap: 1.5rem;
}
.hero-social a {
  font-size: 0.875rem;
  color: var(--muted);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}
.hero-social a:hover { color: var(--text); }

/* ·· Sobre ·· */
.sobre {
  padding-block: var(--gap-sec);
  border-top: 1px solid var(--border);
}

.sobre-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  position: relative;
}

.sobre-texto { max-width: 62ch; }
.sobre-texto .section-title { margin-bottom: 1.5rem; }

.sobre-abertura {
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  font-style: italic;
  line-height: 1.4;
  margin-bottom: 1.25rem;
  color: var(--text);
}
/* Parágrafos do corpo (exclui a abertura) */
.sobre-texto p:not(.sobre-abertura) {
  font-size: 0.975rem;
  color: var(--muted);
  margin-bottom: 0.9rem;
  line-height: 1.75;
}

.sobre-deco {
  font-family: var(--font-serif);
  font-size: clamp(100px, 18vw, 180px);
  color: var(--deco);
  line-height: 1;
  letter-spacing: -0.05em;
  user-select: none;
  pointer-events: none;
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
}

/* ·· Skills ·· */
.skills {
  padding-block: var(--gap-sec);
  border-top: 1px solid var(--border);
}

.skills-grupos { display: flex; flex-direction: column; gap: 2.5rem; }

.skills-cat {
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 1.25rem;
}

.skills-lista {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.skill-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  min-width: 80px;
  transition: border-color 0.2s ease, transform 0.2s var(--ease);
}
.skill-item:hover { border-color: var(--accent); transform: translateY(-2px); }
.skill-item i { font-size: 1.75rem; line-height: 1; }
.skill-item i:not([class*="colored"]) { color: var(--text); }
.skill-item span { font-size: 0.75rem; font-weight: 500; color: var(--muted); white-space: nowrap; }

/* ·· Projetos ·· */
.projetos {
  padding-block: var(--gap-sec);
  border-top: 1px solid var(--border);
}

.projetos-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

/* Quebra de padrão: 1º e 5º cards ocupam linha inteira */
.projetos-grid > .projeto-card:first-child,
.projetos-grid > .projeto-card:nth-child(5) {
  grid-column: 1 / -1;
}

.projetos-erro {
  padding: 2rem 0;
}
.projetos-erro p {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}
.projetos-erro a {
  color: var(--accent);
  font-size: 0.9rem;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ·· Em andamento ·· */
.andamento {
  padding-block: var(--gap-sec);
  border-top: 1px solid var(--border);
}

.andamento-inner {
  display: flex;
  gap: 3rem;
  align-items: flex-start;
}

/* Linha vertical azul — elemento editorial inesperado */
.andamento-linha {
  width: 2px;
  align-self: stretch;
  min-height: 120px;
  background-color: var(--accent);
  flex-shrink: 0;
}

.andamento-titulo {
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 400;
  margin-bottom: 0.75rem;
}
.andamento-intro {
  font-size: 0.875rem;
  color: var(--muted);
  margin-bottom: 1.25rem;
}
.andamento-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.andamento-tags li {
  font-size: 0.825rem;
  font-weight: 500;
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.andamento-tags li:hover { border-color: var(--accent); color: var(--accent); }

/* ·· Contato ·· */
.contato {
  padding-block: var(--gap-sec);
  border-top: 1px solid var(--border);
}

.contato-convite {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--muted);
  line-height: 1.6;
  max-width: 45ch;
  margin-bottom: 2rem;
}

.contato-email {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 3.5vw, 2rem);
  font-style: italic;
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 5px;
  text-decoration-color: var(--accent);
  margin-bottom: 2rem;
  transition: color 0.2s ease;
}
.contato-email:hover { color: var(--accent); }

.contato-social {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  font-size: 0.875rem;
  color: var(--muted);
}
.contato-social a {
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}
.contato-social a:hover { color: var(--text); }

/* ·· Rodapé ·· */
.rodape {
  border-top: 1px solid var(--border);
  padding-block: 1.5rem;
  padding-inline: var(--pad-x);
  max-width: var(--w-max);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.rodape p { font-size: 0.8rem; color: var(--muted); }

.rodape-topo {
  font-size: 0.8rem;
  color: var(--muted);
  text-decoration: underline;
  text-underline-offset: 3px;
  white-space: nowrap;
  transition: color 0.2s ease;
}
.rodape-topo:hover { color: var(--text); }


/* ── 7. ANIMAÇÕES ──────────────────────────────────────────── */
@keyframes shimmer {
  from { background-position:  200% 0; }
  to   { background-position: -200% 0; }
}


/* ── 8. RESPONSIVO ─────────────────────────────────────────── */

/* Tablet ≥ 640px */
@media (min-width: 640px) {
  .sobre-grid {
    grid-template-columns: 3fr 1fr;
    align-items: center;
  }
  .sobre-deco {
    position: static;
    transform: none;
    text-align: right;
  }
}

/* Desktop ≥ 900px */
@media (min-width: 900px) {
  .sobre-grid { grid-template-columns: 60% 1fr; }
}

/* Mobile < 640px */
@media (max-width: 639px) {

  /* Hamburguer visível */
  .btn-hamburger { display: flex; }

  /* Menu mobile */
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-h);
    inset-inline: 0;
    background-color: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    gap: 0;
    padding-block: 0.5rem;
    z-index: 99;
    margin-inline: 0;
  }
  .nav-links.aberto { display: flex; }
  .nav-links a {
    display: block;
    padding: 0.75rem var(--pad-x);
    font-size: 1rem;
  }

  /* Área de toque maior nos botões de ícone */
  .btn-icon {
    padding: 0.5rem 0.65rem;
    min-width: 36px;
    min-height: 36px;
  }

  /* Hero: menos espaço no topo */
  .hero { padding-top: calc(var(--nav-h) + 3rem); }

  /* Sobre: esconde decorativo */
  .sobre-deco { display: none; }

  /* Projetos: coluna única */
  .projetos-grid { grid-template-columns: 1fr; }
  .projetos-grid > .projeto-card:first-child,
  .projetos-grid > .projeto-card:nth-child(5) { grid-column: auto; }

  /* Em andamento: empilha */
  .andamento-inner { flex-direction: column; gap: 1.5rem; }
  .andamento-linha { width: 40px; height: 2px; min-height: unset; align-self: auto; }
}