/* ==========================================================================
   base.css — Reset, tipografia e componentes compartilhados
   Carregado em TODAS as páginas, depois de tokens.css.
   ========================================================================== */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg, video { max-width: 100%; height: auto; display: block; }

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Link "pular para o conteúdo" — acessibilidade */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--accent); color: #fff;
  padding: var(--space-3) var(--space-5);
  border-radius: 0 0 var(--radius) 0;
  font-family: var(--font-display); font-size: .85rem; font-weight: 600;
}
.skip-link:focus { left: 0; color: #fff; }

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.container--wide { max-width: var(--measure-wide); }

/* --------------------------------------------------------------------------
   Tipografia
   -------------------------------------------------------------------------- */

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.15;
  text-wrap: balance;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: .8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--accent);
}

.lede {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 60ch;
}

.muted { color: var(--text-secondary); }

/* --------------------------------------------------------------------------
   Botões
   -------------------------------------------------------------------------- */

.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-size: .88rem;
  font-weight: 600;
  line-height: 1.4;
  padding: var(--space-3) var(--space-6);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: center;
  transition: background .2s, color .2s, border-color .2s, transform .1s;
}

.btn:active { transform: translateY(1px); }

.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: var(--accent-hover); color: #fff; }

.btn--ghost { background: transparent; color: var(--accent); border-color: var(--border); }
.btn--ghost:hover { border-color: var(--accent); background: var(--tag-bg); }

.btn--lg { font-size: 1rem; padding: var(--space-4) var(--space-7); }
.btn--block { display: block; width: 100%; }

/* --------------------------------------------------------------------------
   Cards, tags e listas
   -------------------------------------------------------------------------- */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-5) var(--space-6);
}

.tags { display: flex; flex-wrap: wrap; gap: var(--space-2); }

.tag {
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 500;
  background: var(--tag-bg);
  color: var(--text-secondary);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: .7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--blush);
  color: var(--accent);
  border: 1px solid var(--accent);
}

.status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-secondary);
}

.status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--success);
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   Formulários
   -------------------------------------------------------------------------- */

.form { display: flex; flex-direction: column; gap: var(--space-4); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }

.form-group { display: flex; flex-direction: column; gap: var(--space-2); }

.form-group label {
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--clay);
}

.form-group input,
.form-group textarea {
  font-family: var(--font-body);
  font-size: .9rem;
  color: var(--text);
  background: var(--bg);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color .2s;
}

.form-group input:focus,
.form-group textarea:focus { border-color: var(--accent); }

.form-group textarea { resize: vertical; min-height: 110px; }

.form .btn { align-self: flex-start; }
.form .btn:disabled { opacity: .6; cursor: wait; }

/* Retorno do envio — vazio não ocupa espaço */
.form-status {
  font-family: var(--font-mono);
  font-size: .78rem;
  line-height: 1.5;
  margin: 0;
}
.form-status:empty { display: none; }
.form-status.is-pending { color: var(--text-secondary); }
.form-status.is-success { color: var(--success); }
.form-status.is-error   { color: var(--accent); }

/* --------------------------------------------------------------------------
   Header do site
   -------------------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

.logo {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--text);
}
.logo:hover { color: var(--accent); }

.nav-links { display: flex; gap: var(--space-5); align-items: center; }

.nav-links a {
  font-family: var(--font-mono);
  font-size: .74rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-secondary);
}
.nav-links a:hover { color: var(--accent); }

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .2s, opacity .2s;
}

.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 640px) {
  .menu-toggle { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
    background: var(--bg);
    padding: var(--space-5);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }
  .nav-links.open { display: flex; }
}

/* --------------------------------------------------------------------------
   Footer do site
   -------------------------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-7) 0 var(--space-8);
  margin-top: var(--space-8);
  font-size: .8rem;
  color: var(--text-secondary);
}

.site-footer .footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
  margin-top: var(--space-3);
}

/* --------------------------------------------------------------------------
   Utilitários
   -------------------------------------------------------------------------- */

.center { text-align: center; }
.stack > * + * { margin-top: var(--space-4); }
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

@media (max-width: 480px) {
  .form-row { grid-template-columns: 1fr; }
  .card { padding: var(--space-4); }
}