/* Layout: coluna única estreita, terminal do ECHO-6 como peça central.
   Paleta noir: azul-cobalto (Cobalt City) + âmbar de luz de rua. */
:root {
  --bg: #0d1017;
  --surface: #151a24;
  --line: #262e3d;
  --text: #dfe4ee;
  --muted: #8b95a8;
  --cobalt: #4f7cff;
  --amber: #f2b54a;

  --font-display: "Big Shoulders Display", "Arial Narrow", sans-serif;
  --font-body: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, Consolas, monospace;

  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
}

a { color: var(--cobalt); }
a:focus-visible, input:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

/* ---------- Topo ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px 24px;
  padding: 14px max(16px, calc((100% - 960px) / 2));
  background: rgb(13 16 23 / 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.875rem;
}
.logo { color: var(--text); text-decoration: none; font-weight: 500; }
.logo span { color: var(--amber); }
.topbar nav { display: flex; flex-wrap: wrap; gap: 4px 18px; }
.topbar nav a { color: var(--muted); text-decoration: none; }
.topbar nav a:hover { color: var(--text); }

/* ---------- Estrutura ---------- */
main {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px;
}

.section { padding: 72px 0 0; }

h1, h2, h3 { text-wrap: balance; margin: 0; }

h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 2.25rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: 24px;
  display: flex;
  align-items: baseline;
  gap: 14px;
}
.num {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--amber);
}

.section-note { color: var(--muted); margin: -12px 0 20px; }

/* ---------- Hero ---------- */
.hero { padding: 88px 0 24px; }
.tag {
  font-family: var(--font-mono);
  color: var(--amber);
  font-size: 0.875rem;
  margin: 0 0 8px;
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(4rem, 16vw, 9rem);
  line-height: 0.9;
  text-transform: uppercase;
}
.lead {
  max-width: 34ch;
  font-size: 1.375rem;
  line-height: 1.45;
  margin: 20px 0 32px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.btn {
  display: inline-block;
  padding: 10px 20px;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--text);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
}
.btn:hover { border-color: var(--muted); }
.btn-primary { background: var(--cobalt); border-color: var(--cobalt); color: #fff; }
.btn-primary:hover { background: #3d68e8; border-color: #3d68e8; }

/* ---------- Sobre ---------- */
.about { display: grid; gap: 16px; max-width: 65ch; }
.about p { margin: 0; }

/* ---------- Projetos ---------- */
.project {
  display: grid;
  gap: 28px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
}
.project.featured { grid-template-columns: 1fr 1.1fr; align-items: start; }

.project-kind {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--muted);
  margin: 0 0 4px;
}
.project h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 2rem;
  margin-bottom: 10px;
}
.project-info p { margin: 0 0 16px; max-width: 60ch; }

.chips {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chips li {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
}
.project-links { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.project-links a { font-family: var(--font-mono); font-size: 0.9375rem; }
.status { color: var(--amber); font-size: 0.9375rem; }

/* Projetos menores em grade */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.card {
  display: flex;
  flex-direction: column;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
}
.card h3 { font-size: 1.5rem; }
.card p { margin: 0 0 16px; }
.card .project-links { margin-top: auto; }
.more { margin: 20px 0 0; }

/* Terminal */
.terminal {
  background: #080a0f;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgb(0 0 0 / 0.35), 0 0 0 1px rgb(79 124 255 / 0.08);
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 12px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.terminal-bar span { width: 10px; height: 10px; border-radius: 50%; background: var(--line); }
.terminal-bar p {
  margin: 0 0 0 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
}
.terminal-body {
  margin: 0;
  padding: 16px;
  min-height: 230px;
  max-height: 320px;
  overflow: auto;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
  color: #b9c6e4;
  white-space: pre-wrap;
}
.terminal-input {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  color: var(--amber);
}
.terminal-input input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: 0;
  color: var(--text);
  font: inherit;
  font-size: 0.875rem;
}

/* ---------- Stack ---------- */
.stack {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.stack li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 16px;
  background: var(--bg);
}
.level { font-family: var(--font-mono); font-size: 0.8125rem; color: var(--muted); }

/* ---------- Trajetória ---------- */
.timeline {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 24px;
  border-left: 1px solid var(--line);
}
.timeline li { position: relative; padding-left: 24px; }
.timeline li::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 8px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cobalt);
}
.timeline li:last-child::before { background: var(--bg); border: 1px solid var(--amber); }
.when { margin: 0; font-family: var(--font-mono); font-size: 0.8125rem; color: var(--amber); }
.timeline h3 { font-size: 1.125rem; font-weight: 600; }
.timeline p:last-child { margin: 2px 0 0; color: var(--muted); }

/* ---------- Contato ---------- */
.contact p { max-width: 55ch; margin: 0 0 20px; }
.contact-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  font-family: var(--font-mono);
}
.contact-links span { color: var(--muted); }

.footer {
  max-width: 960px;
  margin: 96px auto 0;
  padding: 24px 16px 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}
.footer p { margin: 0; }

/* ---------- Celular ---------- */
@media (max-width: 760px) {
  .project.featured { grid-template-columns: 1fr; }
  .section { padding-top: 56px; }
  .hero { padding-top: 56px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}