/* ============================================================
   style.css — Paleta, tokens, layout geral, tipografia e grids
   Paleta baseada no design system do portfólio:
     - Escuros: Carvão, Fuligem, Terra queimada, Barro escuro
     - Neutros: Sombra, Pedra, Cinza areia, Linho
     - Claros:  Areia clara, Pergaminho, Bege quente, Creme
     - Acento:  Barro, Caramelo, Mogno
   ============================================================ */

:root {
  /* Paleta bruta (valores fixos) */
  --carvao:        #1A1814;
  --fuligem:       #2C2720;
  --terra-queimada:#3D352C;
  --barro-escuro:  #524840;
  --sombra:        #6B6259;
  --pedra:         #9C9085;
  --cinza-areia:   #C4BAB0;
  --linho:         #D9D2C5;
  --areia-clara:   #E8E0D0;
  --pergaminho:    #F0EBE0;
  --bege-quente:   #F5F0E8;
  --creme:         #FAF8F4;
  --barro:         #8C7B68;  /* acento principal */
  --caramelo:      #A8967F;  /* hover / destaque */
  --mogno:         #6B5C4E;  /* acento escuro */

  /* Layout */
  --container-max: 1320px;
  --pad-x: clamp(1rem, 1.5vw + 0.5rem, 3rem);
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;

  /* Tipografia fluida */
  --fs-hero:    clamp(2.5rem, 1.5rem + 5.5vw, 6rem);
  --fs-section: clamp(1.75rem, 1.25rem + 2vw, 3rem);
  --fs-body:    clamp(0.95rem, 0.9rem + 0.2vw, 1.06rem);

  /* Espaçamentos */
  --pad-section: clamp(3.5rem, 3rem + 3vw, 6rem);
  --gap-grid:    clamp(1.25rem, 1vw + 0.8rem, 2rem);

  /* Transições */
  --t-fast: 0.2s ease;
  --t-mid:  0.35s ease;
  --t-slow: 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);

  /* ---------- Tema padrão (DARK) ---------- */
  --bg-deep:       var(--carvao);
  --bg-main:       var(--fuligem);
  --bg-surface:    var(--terra-queimada);
  --bg-card:       var(--terra-queimada);
  --bg-card-hover: #4A4036;

  --border:        rgba(196, 186, 176, 0.14);
  --border-mid:    rgba(196, 186, 176, 0.26);
  --border-hover:  rgba(196, 186, 176, 0.50);
  --divider:       var(--barro-escuro);

  --text-primary:   var(--bege-quente);
  --text-secondary: var(--linho);
  --text-muted:     var(--pedra);
  --text-faint:     var(--sombra);

  --accent:        var(--caramelo);
  --accent-dim:    var(--barro);
  --accent-deep:   var(--mogno);

  /* noise overlay suave */
  --noise-opacity: 0.06;

  color-scheme: dark;
}

/* ---------- Tema LIGHT ---------- */
[data-theme="light"] {
  --bg-deep:       var(--creme);
  --bg-main:       var(--bege-quente);
  --bg-surface:    var(--pergaminho);
  --bg-card:       var(--creme);
  --bg-card-hover: var(--pergaminho);

  --border:        rgba(82, 72, 64, 0.14);
  --border-mid:    rgba(82, 72, 64, 0.26);
  --border-hover:  rgba(82, 72, 64, 0.45);
  --divider:       var(--linho);

  --text-primary:   var(--carvao);
  --text-secondary: var(--barro-escuro);
  --text-muted:     var(--sombra);
  --text-faint:     var(--pedra);

  --accent:        var(--mogno);
  --accent-dim:    var(--barro);
  --accent-deep:   var(--barro-escuro);

  --noise-opacity: 0.04;
  color-scheme: light;
}

/* ---------- Base ---------- */
html { scroll-behavior: smooth; }

body {
  background: var(--bg-main);
  color: var(--text-primary);
  font-family: 'DM Sans', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  font-weight: 300;
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
  position: relative;
  transition: background var(--t-mid), color var(--t-mid);
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/><feColorMatrix values='0 0 0 0 0.66, 0 0 0 0 0.59, 0 0 0 0 0.5, 0 0 0 0.6 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.35'/></svg>");
  opacity: var(--noise-opacity);
  pointer-events: none;
  z-index: 1;
  mix-blend-mode: overlay;
}

body::after {
  content: '';
  position: fixed; inset: 0;
  background:
    radial-gradient(ellipse at top right, rgba(168, 150, 127, 0.07), transparent 55%),
    radial-gradient(ellipse at bottom left, rgba(107, 92, 78, 0.08), transparent 55%);
  pointer-events: none;
  z-index: 0;
}

main, header, footer { position: relative; z-index: 2; }

::selection { background: var(--accent); color: var(--bg-deep); }

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

/* ---------- Tipografia ---------- */
h1, h2, h3, h4 {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

p { color: var(--text-secondary); }
strong { color: var(--text-primary); font-weight: 500; }
em { font-family: 'Instrument Serif', serif; font-style: italic; font-weight: 400; color: var(--accent); }

.section-title { font-size: var(--fs-section); margin-bottom: 0.5rem; line-height: 1.05; }
.section-subtitle { color: var(--text-muted); font-size: 1rem; margin-bottom: 2.5rem; max-width: 60ch; }

.eyebrow {
  display: inline-block;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

/* ---------- TICKER ---------- */
.ticker {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 101;
  height: 34px;
  background: var(--bg-deep);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: stretch; overflow: hidden;
}
.ticker__label {
  flex: 0 0 auto;
  display: flex; align-items: center;
  padding: 0 clamp(1rem, 2vw, 1.5rem);
  background: var(--bg-deep);
  color: var(--accent);
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  position: relative; z-index: 2;
}
.ticker__label::after {
  content: ''; position: absolute; top: 0; bottom: 0; left: 100%;
  width: 20px;
  background: linear-gradient(90deg, var(--bg-deep), transparent);
  pointer-events: none;
}
.ticker__scroll { flex: 1 1 auto; min-width: 0; overflow: hidden; display: flex; align-items: center; }
.ticker__track {
  display: flex;
  animation: tickerMove 42s linear infinite;
  white-space: nowrap;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  will-change: transform;
}
.ticker__item { display: inline-flex; align-items: center; padding-right: clamp(1.5rem, 3vw, 2.5rem); }
.ticker__item::after {
  content: '/'; color: var(--text-faint);
  margin-left: clamp(1.5rem, 3vw, 2.5rem); font-weight: 300;
}
@keyframes tickerMove {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ---------- HERO ---------- */
.hero { padding: clamp(7rem, 12vw, 10rem) 0 var(--pad-section); position: relative; }

.hero__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(2rem, 4vw, 4.5rem);
  align-items: center;
}

.hero__kicker {
  font-size: 0.78rem; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--accent);
  margin-bottom: 1.25rem;
  display: inline-flex; align-items: center; gap: 0.6rem;
}
.hero__kicker::before {
  content: ''; width: 28px; height: 1px; background: var(--accent);
  display: inline-block;
}

.hero__title {
  font-size: var(--fs-hero);
  line-height: 0.98;
  letter-spacing: -0.035em;
  margin-bottom: 1.5rem;
}
.hero__title .last {
  display: block;
  color: var(--accent);
  font-family: 'Instrument Serif', serif;
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.03em;
}

.hero__lead {
  font-size: clamp(1rem, 0.9rem + 0.35vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 52ch;
  margin-bottom: 1.75rem;
}

.hero__tags { display: flex; flex-wrap: wrap; gap: 0.55rem; margin-bottom: 2rem; }
.hero__tag {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  background: rgba(168, 150, 127, 0.08);
  border: 1px solid var(--border-mid);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  display: inline-flex; align-items: center; gap: 0.45rem;
}
.hero__tag::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
}

.hero__cta { display: flex; flex-wrap: wrap; gap: 0.8rem; }

/* Profile card à direita */
.profile-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(1rem, 1.5vw, 1.5rem);
  display: flex; flex-direction: column; gap: 1rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
}

.profile-photo {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-deep);
}
.profile-photo img {
  display: block;
  width: 100%;
  height: auto;
  transition: transform var(--t-slow);
}
.profile-card:hover .profile-photo img { transform: scale(1.02); }
.photo-badge {
  position: absolute; top: 1rem; left: 1rem;
  font-size: 0.7rem; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--bege-quente);
  background: rgba(26, 24, 20, 0.65);
  backdrop-filter: blur(6px);
  padding: 0.4rem 0.85rem; border-radius: 999px;
  border: 1px solid rgba(245, 240, 232, 0.18);
  z-index: 2;
  display: inline-flex; align-items: center; gap: 0.45rem;
}
.photo-badge::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}

.id-card {
  display: grid; grid-template-columns: 1fr;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.id-row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 0.75rem;
  padding: 0.85rem 1.1rem;
  border-bottom: 1px solid var(--border);
}
.id-row:last-child { border-bottom: none; }
.id-label {
  font-size: 0.7rem; letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-faint);
  align-self: center;
}
.id-value {
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 400;
}
.id-value .sub { color: var(--text-muted); font-size: 0.82rem; display: block; }

/* ---------- SECTION ---------- */
.section { padding: var(--pad-section) 0; }
.section--alt { background: var(--bg-surface); }

.section__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}
.section__head p { max-width: 55ch; color: var(--text-muted); }

.section__num {
  display: flex; align-items: baseline; gap: 0.8rem;
  margin-bottom: 0.75rem;
  font-family: 'Syne', sans-serif;
}
.section__num .big {
  font-size: clamp(2.5rem, 1.75rem + 2.5vw, 4rem);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.04em;
  line-height: 1;
}
.section__num .label {
  font-size: 0.72rem; letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ---------- GRID DE PROJETOS ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: var(--gap-grid);
}
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); }

/* ---------- PAGE HEADER (subpáginas) ---------- */
.page-header {
  padding: clamp(7rem, 12vw, 10rem) 0 clamp(3rem, 6vw, 5rem);
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, var(--bg-deep), var(--bg-main));
}
.page-header__category {
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.page-header__title {
  font-size: clamp(2.5rem, 1.5rem + 4vw, 4.5rem);
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}
.page-header__desc { max-width: 60ch; color: var(--text-secondary); font-size: 1.05rem; }

/* ---------- ABOUT / TIMELINE ---------- */
.about {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(2rem, 3vw, 4rem);
}
.about__text p + p { margin-top: 1rem; }

.timeline { position: relative; padding-left: 1.25rem; border-left: 1px solid var(--border-mid); }
.timeline__item { position: relative; padding: 0.6rem 0 1.4rem; }
.timeline__item::before {
  content: '';
  position: absolute; left: -1.625rem; top: 1rem;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(168, 150, 127, 0.14);
}
.timeline__when { font-size: 0.75rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent); }
.timeline__what { font-family: 'Syne', sans-serif; font-weight: 600; font-size: 1.05rem; margin: 0.2rem 0 0.3rem; }
.timeline__detail { color: var(--text-muted); font-size: 0.95rem; line-height: 1.6; }

/* ---------- STACK ---------- */
.stack-list { display: grid; gap: 0.75rem; }
.stack-item {
  display: grid;
  grid-template-columns: 60px 1.2fr 1fr 2fr;
  gap: 1rem; align-items: center;
  padding: 1rem 1.25rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color var(--t-fast), transform var(--t-fast);
}
.stack-item:hover { border-color: var(--border-hover); transform: translateX(2px); }
.stack-num { font-family: 'Syne', sans-serif; color: var(--text-faint); font-size: 0.8rem; letter-spacing: 0.1em; }
.stack-name { font-family: 'Syne', sans-serif; font-weight: 600; font-size: 1.05rem; color: var(--text-primary); }
.stack-level { color: var(--text-muted); font-size: 0.85rem; }
.stack-bar { height: 4px; background: var(--border); border-radius: 999px; overflow: hidden; }
.stack-bar__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-dim), var(--accent));
  width: calc(var(--fill, 0.5) * 100%);
  border-radius: 999px;
}

@media (max-width: 720px) {
  .stack-item { grid-template-columns: 1fr 1fr; gap: 0.5rem 1rem; }
  .stack-num { grid-column: 1 / -1; }
  .stack-bar { grid-column: 1 / -1; }
}

/* hero colunas */
.hero__left { align-self: center; }
.hero__right { align-self: center; }

/* light-theme: seção alt usa pergaminho em vez de terra-queimada */
[data-theme="light"] .section--alt { background: var(--pergaminho); }

/* ---------- SKIP LINK (acessibilidade) ---------- */
.skip-link {
  position: fixed;
  top: -100px; left: 1rem;
  z-index: 999;
  background: var(--accent);
  color: var(--bg-deep);
  padding: 0.6rem 1.2rem;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-weight: 500;
  font-size: 0.9rem;
  transition: top 0.2s;
}
.skip-link:focus { top: 0; }

/* ---------- BACK TO TOP ---------- */
.back-to-top {
  position: fixed;
  bottom: 2rem; right: 1.5rem;
  z-index: 50;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 1px solid var(--border-mid);
  color: var(--text-secondary);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity var(--t-mid), transform var(--t-mid), border-color var(--t-fast), color var(--t-fast);
}
.back-to-top.is-visible { opacity: 1; transform: none; pointer-events: auto; }
.back-to-top:hover { border-color: var(--border-hover); color: var(--accent); }

/* ---------- UTILIDADES ---------- */
.divider { height: 1px; background: var(--border); border: none; margin: 0; }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* ---------- RESPONSIVIDADE ---------- */
@media (max-width: 960px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__grid .profile-card { max-width: 460px; margin-inline: auto; width: 100%; }
  .about { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .hero { padding-top: clamp(6rem, 22vw, 8rem); }
  .section__head { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .ticker__track { animation: none !important; }
}