/* ============================================================
   Revisão Sistemática — Coleta de Artigos
   Design system do portfólio (paleta âmbar/teal), herdado de
   tcc/tcc.css. Tokens, topbar, hero, jump nav, blocks e footer
   seguem exatamente o padrão do projeto TCC.
   ============================================================ */

:root {
  --bg: #faf9f5;
  --surface: #ffffff;
  --surface-alt: #f1efe9;
  --text: #1c1917;
  --text-soft: #57534e;
  --border: #e7e5e4;
  --accent: #d97706;
  --accent-strong: #b45309;
  --accent-soft: #fdf1dd;
  --accent2: #0d9488;
  --accent2-strong: #0f766e;
  --accent2-soft: #d9f3f0;
  --ok: #059669;
  --warn: #d97706;
  --bad: #dc2626;
  --shadow: 0 10px 30px rgba(28, 25, 23, 0.10);
  --shadow-sm: 0 2px 8px rgba(28, 25, 23, 0.08);
  --radius: 14px;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "JetBrains Mono", Menlo, Consolas, monospace;
}

:root[data-theme="dark"] {
  --bg: #0f1113;
  --surface: #171a1f;
  --surface-alt: #1f2329;
  --text: #f1f5f4;
  --text-soft: #9aa4a1;
  --border: #262b2f;
  --accent: #fbbf24;
  --accent-strong: #f59e0b;
  --accent-soft: #3a2f12;
  --accent2: #2dd4bf;
  --accent2-strong: #5eead4;
  --accent2-soft: #0f3230;
  --ok: #34d399;
  --warn: #fbbf24;
  --bad: #f87171;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
}

:root { --acc: var(--accent); --acc-strong: var(--accent-strong); --acc-soft: var(--accent-soft); }
:root[data-accent="teal"] { --acc: var(--accent2); --acc-strong: var(--accent2-strong); --acc-soft: var(--accent2-soft); }

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  transition: background .3s, color .3s;
}
a { color: var(--acc); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--acc); outline-offset: 2px; }

/* ---------- Topbar ---------- */
header.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 20px;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.05rem; }
.brand .logo {
  display: grid; place-items: center;
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; border-radius: 10px; font-size: .95rem;
}
.topbar-left { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.topbar-actions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; margin-left: auto; }
.topbar-nav { display: flex; gap: 8px; flex-wrap: wrap; }
.icon-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font: inherit; font-size: .85rem; font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background .2s, transform .1s, border-color .2s;
}
.icon-btn:hover { background: var(--acc-soft); border-color: var(--acc); text-decoration: none; }
.icon-btn:active { transform: scale(.96); }

/* ---------- Jump nav ---------- */
nav.jump {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 8px;
  margin-bottom: 30px;
}
nav.jump a {
  padding: 6px 16px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border);
  font-size: .82rem; font-weight: 600; color: var(--text-soft);
  text-decoration: none;
}
nav.jump a:hover { border-color: var(--acc); color: var(--acc); }

/* ---------- Layout ---------- */
main { max-width: 860px; margin: 0 auto; padding: 28px 20px 80px; }

.hero {
  text-align: center;
  padding: 44px 24px;
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--acc-soft), var(--surface) 70%);
  border: 1px solid var(--border);
  margin-bottom: 36px;
}
.hero h1 { font-size: clamp(1.7rem, 4vw, 2.4rem); margin-bottom: 10px; letter-spacing: -.02em; }
.hero h1 span.g { color: var(--acc); }
.hero h1 span.p { color: var(--accent2); }
.hero p { color: var(--text-soft); max-width: 640px; margin: 0 auto; }

.hero-download {
  margin-top: 22px;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  scroll-margin-top: 90px;
}
.btn-download {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 34px;
  border: none; border-radius: 999px;
  background: linear-gradient(135deg, var(--acc), var(--acc-strong));
  color: #fff; font: inherit; font-weight: 800; font-size: 1rem;
  cursor: pointer; text-decoration: none;
  box-shadow: 0 6px 20px color-mix(in srgb, var(--acc) 30%, transparent);
  transition: transform .1s, filter .2s;
}
.btn-download:hover { filter: brightness(1.08); text-decoration: none; }
.btn-download:active { transform: scale(.97); }
.btn-download svg { flex: none; }
.btn-note { font-size: .82rem; color: var(--text-soft); font-weight: 500; }

/* ---------- Blocks ---------- */
.group { scroll-margin-top: 90px; }
.group-title {
  margin: 8px 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  font-size: 1.35rem;
  letter-spacing: -.01em;
}
.group-title small {
  display: block; font-size: .85rem; color: var(--text-soft); font-weight: 500; letter-spacing: 0;
}

section.block {
  margin-bottom: 32px;
  padding: 24px 24px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  scroll-margin-top: 90px;
}
section.block > header { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.sec-num {
  display: grid; place-items: center;
  width: 40px; height: 40px; flex: none;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--acc), var(--acc-strong));
  color: #fff;
  font-weight: 800; font-size: 1.05rem;
}
section.block[data-accent="teal"] .sec-num { background: linear-gradient(135deg, var(--accent2), var(--accent2-strong)); }
section.block h2 { font-size: 1.2rem; letter-spacing: -.01em; }
section.block small.sub { display: block; color: var(--text-soft); font-weight: 500; font-size: .85rem; }
section.block p { margin-bottom: 12px; color: var(--text); font-size: .95rem; }
section.block p:last-child { margin-bottom: 0; }
section.block p strong { color: inherit; }
section.block .ref-tag { color: var(--text-soft); font-size: .85rem; }

/* ---------- Listas ---------- */
ol.pipeline {
  padding-left: 20px;
  display: grid; gap: 8px;
  font-size: .95rem;
}
ol.pipeline li::marker { color: var(--acc); font-weight: 800; }
ul.dots { padding-left: 20px; display: grid; gap: 8px; font-size: .95rem; }
ul.dots li::marker { color: var(--accent2); font-weight: 800; }

code {
  font-family: var(--font-mono);
  font-size: .85em;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2px 6px;
}
p.note { font-size: .85rem; color: var(--text-soft); }

/* ---------- Blocos de código ---------- */
pre.code-block {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: .82rem;
  line-height: 1.7;
  overflow-x: auto;
  white-space: pre;
  color: var(--text);
}
pre.code-block .hl { color: var(--acc); font-weight: 700; }

/* ---------- Tabelas ---------- */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 14px;
}
.table-wrap:last-child { margin-bottom: 0; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: .88rem;
  min-width: 480px;
}
.table-wrap.wide table { min-width: 640px; }
thead th {
  background: var(--surface-alt);
  color: var(--text-soft);
  text-align: left;
  font-size: .76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: 12px 14px;
  white-space: nowrap;
  border-bottom: 1px solid var(--border);
}
tbody td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:nth-child(even) { background: color-mix(in srgb, var(--surface-alt) 45%, transparent); }
tbody td.num { white-space: nowrap; font-weight: 700; color: var(--acc); }
tbody td.ano { white-space: nowrap; color: var(--text-soft); }
table .small { color: var(--text-soft); font-size: .8rem; }

/* Sub-bloco (destaques internos) */
.sub-block {
  margin-top: 18px;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--bad);
  border-radius: 12px;
  background: var(--surface-alt);
}
.sub-block h3 { font-size: .95rem; margin-bottom: 10px; color: var(--text); }

/* Pasta de keyword (sub-tabelas por pasta, página Screen) */
.folder { margin-top: 22px; }
.folder-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  font-size: .95rem;
  margin-bottom: 8px;
  color: var(--text);
}
.folder-head code { font-size: .82rem; color: var(--acc); }

/* ---------- Footer ---------- */
footer { text-align: center; color: var(--text-soft); font-size: .8rem; margin-top: 40px; }
footer a { color: var(--acc); text-decoration: none; }
footer .footer-logo { color: var(--text); font-weight: 800; }
footer .footer-logo span { color: var(--acc); }

/* ---------- Responsivo ---------- */
@media (max-width: 520px) {
  .topbar { padding: 10px 14px; }
  .topbar-left { gap: 10px; }
  .brand { font-size: .95rem; }
  main { padding: 20px 14px 60px; }
  .hero { padding: 32px 18px; }
  section.block { padding: 20px 16px 16px; }
  .btn-download { width: 100%; }
  .group-title { font-size: 1.15rem; }
  thead th, tbody td { padding: 10px 12px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}