/* ============================================================
   TextKit — folha de estilo central
   Paleta: tinta arroxeada + verde-caret + lavanda
   Tipografia: Space Grotesk (display) / Inter (corpo) / JetBrains Mono (texto)
   ============================================================ */

:root {
  --bg:        #14131A;
  --surface:   #1E1C26;
  --surface-2: #272430;
  --border:    #332F3F;
  --text:      #E8E6F0;
  --muted:     #908DA0;
  --faint:     #6B6878;
  --accent:    #7BF1A8;  /* verde-caret */
  --accent-dim:#4FBF82;
  --violet:    #A78BFA;
  --danger:    #F87171;
  --warning:   #FBBF24;

  --radius:    14px;
  --radius-sm: 9px;
  --maxw:      1080px;

  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', 'SF Mono', Menlo, monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* glow ambiente */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(40% 35% at 12% 8%, rgba(123,241,168,0.06), transparent 70%),
    radial-gradient(30% 30% at 88% 92%, rgba(167,139,250,0.06), transparent 70%);
}

main, header, footer { position: relative; z-index: 1; }

a { color: inherit; text-decoration: none; }

::selection { background: rgba(123,241,168,0.25); color: #fff; }

/* ---------- caret piscando (assinatura da marca) ---------- */
.caret {
  display: inline-block;
  width: 0.55ch;
  color: var(--accent);
  animation: blink 1.1s steps(1) infinite;
  font-weight: 400;
}
@keyframes blink { 50% { opacity: 0; } }

@media (prefers-reduced-motion: reduce) {
  .caret { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- header ---------- */
.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(20,19,26,0.8);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header .wrap {
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 1px;
}
.logo b { color: var(--accent); font-weight: 700; }
.header-actions { display: flex; align-items: center; gap: 18px; }
.header-actions a {
  font-size: 0.82rem;
  color: var(--muted);
  font-weight: 500;
  transition: color 0.15s;
}
.header-actions a:hover { color: var(--text); }

/* seletor de idioma */
.lang-toggle {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.7rem;
}
.lang-toggle a {
  padding: 4px 9px;
  color: var(--faint);
}
.lang-toggle a.active { background: var(--accent); color: #0c0b10; font-weight: 700; }

/* ---------- hero ---------- */
.hero { padding: 72px 0 40px; text-align: center; }
.hero .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.04;
  margin-bottom: 18px;
}
.hero p.sub {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 36px;
}

/* contador ao vivo do hero (assinatura) */
.hero-demo {
  max-width: 640px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: left;
  box-shadow: 0 24px 60px -28px rgba(0,0,0,0.7);
}
.hero-demo textarea {
  width: 100%;
  min-height: 96px;
  resize: vertical;
  background: transparent;
  border: none;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  line-height: 1.6;
  padding: 18px 20px;
  outline: none;
}
.hero-demo .demo-stats {
  display: flex;
  gap: 0;
  border-top: 1px solid var(--border);
  background: var(--surface-2);
}
.hero-demo .demo-stat {
  flex: 1;
  padding: 12px 16px;
  text-align: center;
  border-right: 1px solid var(--border);
}
.hero-demo .demo-stat:last-child { border-right: none; }
.hero-demo .demo-stat .n {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
  display: block;
  line-height: 1;
}
.hero-demo .demo-stat .l {
  font-size: 0.66rem;
  color: var(--faint);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 5px;
}

/* ---------- grid de ferramentas ---------- */
.section-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 56px 0 8px;
}
.section-desc { color: var(--muted); margin-bottom: 28px; font-size: 0.95rem; }

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(244px, 1fr));
  gap: 14px;
}
.tool-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  transition: border-color 0.18s, transform 0.18s, background 0.18s;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 116px;
}
.tool-card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-2px);
  background: var(--surface-2);
}
.tool-card .tc-cat {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--violet);
}
.tool-card h3 {
  font-family: var(--font-display);
  font-size: 1.04rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.tool-card p { font-size: 0.84rem; color: var(--muted); line-height: 1.5; }

/* categoria filtro */
.cat-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 26px; }
.cat-chip {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  padding: 6px 13px;
  border-radius: 7px;
  border: 1px solid var(--border);
  color: var(--muted);
  cursor: pointer;
  background: none;
  transition: all 0.15s;
}
.cat-chip:hover { border-color: var(--accent-dim); color: var(--text); }
.cat-chip.active { background: var(--accent); color: #0c0b10; border-color: var(--accent); font-weight: 700; }

/* ---------- página de ferramenta ---------- */
.tool-page { padding: 36px 0 60px; }
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--faint);
  margin-bottom: 22px;
}
.breadcrumb a:hover { color: var(--accent); }
.tool-head h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 10px;
}
.tool-head p { color: var(--muted); max-width: 620px; margin-bottom: 28px; }

.tool-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.tool-io { display: grid; grid-template-columns: 1fr; }
@media (min-width: 760px) {
  .tool-io.split { grid-template-columns: 1fr 1fr; }
}
.io-pane { display: flex; flex-direction: column; border-right: 1px solid var(--border); }
.io-pane:last-child { border-right: none; }
.io-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--faint);
  padding: 12px 16px 6px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
textarea.io {
  width: 100%;
  min-height: 280px;
  resize: vertical;
  background: transparent;
  border: none;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.92rem;
  line-height: 1.65;
  padding: 4px 16px 16px;
  outline: none;
}
textarea.io::placeholder { color: var(--faint); }

.tool-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  padding: 14px 16px;
  border-top: 1px solid var(--border);
  background: var(--surface-2);
}

/* botões */
.btn {
  font-family: var(--font-body);
  font-size: 0.86rem;
  font-weight: 600;
  padding: 9px 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.btn:hover { border-color: var(--accent-dim); }
.btn-primary {
  background: var(--accent);
  color: #0c0b10;
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-dim); border-color: var(--accent-dim); }
.btn-ghost { background: none; }

/* stats row */
.stats-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-top: 1px solid var(--border);
  background: var(--surface-2);
}
.stat-cell {
  flex: 1;
  min-width: 90px;
  padding: 14px 16px;
  text-align: center;
  border-right: 1px solid var(--border);
}
.stat-cell:last-child { border-right: none; }
.stat-cell .n {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--accent);
  display: block;
  line-height: 1;
}
.stat-cell .l {
  font-size: 0.64rem;
  color: var(--faint);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 6px;
}

/* select e input inline */
select.ctrl, input.ctrl {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 8px 11px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  outline: none;
  cursor: pointer;
}
select.ctrl:focus, input.ctrl:focus { border-color: var(--accent-dim); }
label.ctrl-label { font-size: 0.82rem; color: var(--muted); display: inline-flex; align-items: center; gap: 7px; }

/* toast copiar */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--accent);
  color: #0c0b10;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 11px 20px;
  border-radius: 9px;
  opacity: 0;
  pointer-events: none;
  transition: all 0.25s;
  z-index: 100;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- conteúdo SEO / artigo ---------- */
.article {
  max-width: 720px;
  margin: 52px auto 0;
}
.article h2 {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 36px 0 12px;
}
.article h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin: 26px 0 10px;
}
.article p { color: #C9C6D6; margin-bottom: 14px; }
.article ul, .article ol { color: #C9C6D6; margin: 0 0 16px 22px; }
.article li { margin-bottom: 7px; }
.article strong { color: var(--text); }

/* FAQ */
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
  overflow: hidden;
  background: var(--surface);
}
.faq-q {
  padding: 16px 18px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.95rem;
}
.faq-q::after { content: '+'; color: var(--accent); font-family: var(--font-mono); }
.faq-item[open] .faq-q::after { content: '−'; }
.faq-a { padding: 0 18px 16px; color: var(--muted); font-size: 0.9rem; }

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 64px;
  padding: 40px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 28px;
}
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 22px; } }
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--faint);
  margin-bottom: 12px;
}
.footer-col a { display: block; color: var(--muted); font-size: 0.85rem; margin-bottom: 7px; transition: color 0.15s; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--faint);
  font-size: 0.8rem;
}

/* ---------- slot de anúncio ---------- */
.ad-slot {
  margin: 32px auto;
  max-width: 728px;
  min-height: 90px;
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
}

/* banner de topo: aparece logo abaixo do header */
.ad-slot.ad-top {
  margin: 18px auto 0;
}

/* banner dentro do artigo: respira entre os parágrafos */
.ad-slot.ad-in-article {
  margin: 36px auto;
}

/* utilitários */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }