/* ═══════════════════════════════════════════════════════════
   CIA DE AGENTES — identidade "Grafite & Ciano" (2026)
   Fonte única de tokens + componentes compartilhados.
   Guia: ciagt-docs/identidade-visual.md
   ═══════════════════════════════════════════════════════════ */

:root {
  --bg:        #0A0F14;                    /* azul-carvão — fundo base   */
  --panel:     #10161D;                    /* superfície (cards, faixas) */
  --panel-2:   #141C25;                    /* superfície elevada          */
  --ink:       #EFF6F8;                    /* texto principal             */
  --muted:     rgba(239,246,248,.60);      /* texto secundário            */
  --faint:     rgba(239,246,248,.38);      /* texto terciário / legendas  */
  --line:      rgba(239,246,248,.09);      /* bordas padrão               */
  --line-hi:   rgba(239,246,248,.18);      /* bordas em destaque/hover    */
  --cyan:      #22D3EE;                    /* acento único da marca       */
  --cyan-hi:   #67E8F9;                    /* acento em hover/realce      */
  --cyan-dim:  rgba(34,211,238,.13);       /* acento como fundo/aura      */
  --font-h:    'Archivo', system-ui, sans-serif;
  --font-b:    'Inter', system-ui, sans-serif;
  --font-m:    'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;

  /* tema do widget de webchat (chn cia-de-agentes lê estas variáveis) */
  --ciagt-webchat-primary:     #22D3EE;
  --ciagt-webchat-on-primary:  #06252B;
  --ciagt-webchat-bg:          #10161D;
  --ciagt-webchat-messages-bg: #0A0F14;
  --ciagt-webchat-bot-bg:      #141C25;
  --ciagt-webchat-text:        #EFF6F8;
  --ciagt-webchat-border:      rgba(239,246,248,.14);
  --ciagt-webchat-font:        'Inter', system-ui, sans-serif;
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-b);
  font-size: 16px;
  line-height: 1.6;
}

img, svg { max-width: 100%; height: auto; }
a { color: inherit; }

::selection { background: var(--cyan); color: #06252B; }

/* ── tipografia ─────────────────────────────────────────── */

h1, h2, h3, h4 {
  font-family: var(--font-h);
  font-weight: 600;
  letter-spacing: -.02em;
  line-height: 1.08;
  margin: 0;
  text-wrap: balance;
}

.k-label {                    /* rótulo de seção — mono, ciano, caixa alta */
  font-family: var(--font-m);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
}
.k-label::before { content: '● '; font-size: 8px; vertical-align: 2px; }

.k-num {                      /* números e dados */
  font-family: var(--font-m);
  font-variant-numeric: tabular-nums;
}

/* ── layout ─────────────────────────────────────────────── */

.k-wrap   { max-width: 1120px; margin: 0 auto; padding: 0 32px; }
.k-narrow { max-width: 760px;  margin: 0 auto; padding: 0 32px; }
section   { padding: 88px 0; }
@media (max-width: 640px) {
  .k-wrap, .k-narrow { padding: 0 20px; }
  section { padding: 60px 0; }
}

.k-section-head { margin-bottom: 44px; }
.k-section-head h2 { font-size: clamp(26px, 3.6vw, 38px); margin-top: 14px; }
.k-section-head p  { color: var(--muted); max-width: 60ch; margin: 14px 0 0; }

/* ── botões ─────────────────────────────────────────────── */

.k-btn {
  display: inline-block;
  background: var(--cyan);
  color: #06252B;
  font-family: var(--font-b);
  font-weight: 500;
  font-size: 14.5px;
  padding: 13px 26px;
  border-radius: 8px;
  border: none;
  text-decoration: none;
  cursor: pointer;
  transition: background .2s, transform .15s;
}
.k-btn:hover { background: var(--cyan-hi); transform: translateY(-1px); }

.k-btn-ghost {
  display: inline-block;
  background: transparent;
  color: var(--ink);
  font-family: var(--font-b);
  font-weight: 500;
  font-size: 14.5px;
  padding: 12px 25px;
  border-radius: 8px;
  border: 1px solid var(--line-hi);
  text-decoration: none;
  cursor: pointer;
  transition: border-color .2s, background .2s;
}
.k-btn-ghost:hover { border-color: var(--cyan); background: var(--cyan-dim); }

.k-btn:focus-visible, .k-btn-ghost:focus-visible, a:focus-visible {
  outline: 2px solid var(--cyan-hi);
  outline-offset: 3px;
}

/* ── cards de caso ──────────────────────────────────────── */

.k-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
}
.k-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 26px 24px 22px;
  text-decoration: none;
  transition: border-color .2s, transform .2s, background .2s;
}
.k-card:hover { border-color: var(--cyan); transform: translateY(-3px); background: var(--panel-2); }
.k-card .tag {
  font-family: var(--font-m);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan);
}
.k-card h3 { font-size: 18px; letter-spacing: -.01em; }
.k-card p  { margin: 0; font-size: 13.5px; color: var(--muted); flex: 1; }
.k-card .go { font-size: 13px; font-weight: 600; color: var(--cyan); margin-top: 8px; }
.k-card:hover .go { color: var(--cyan-hi); }

/* ── status pill ────────────────────────────────────────── */

.k-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-m);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--cyan);
  border: 1px solid rgba(34,211,238,.35);
  background: var(--cyan-dim);
  border-radius: 999px;
  padding: 5px 14px;
}
.k-pill::before {
  content: '';
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--cyan);
  animation: k-pulse 2.4s ease-in-out infinite;
}
@keyframes k-pulse { 0%,100%{opacity:1} 50%{opacity:.35} }

/* ── conversa recriada (chat demonstrativo) ─────────────── */

.k-chat {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  max-width: 480px;
}
.k-chat-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--line);
}
.k-chat-avatar {
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--cyan-dim);
  border: 1px solid rgba(34,211,238,.4);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-h); font-weight: 600; font-size: 15px; color: var(--cyan);
  flex-shrink: 0;
}
.k-chat-head .who   { font-size: 14px; font-weight: 600; line-height: 1.3; }
.k-chat-head .state { font-size: 11.5px; color: var(--faint); }
.k-chat-head .chan  {
  margin-left: auto;
  font-family: var(--font-m); font-size: 10px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--faint);
}
.k-chat-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px;
}
.k-msg {
  max-width: 85%;
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 13.5px;
  line-height: 1.5;
}
.k-msg.user {
  align-self: flex-end;
  background: var(--cyan-dim);
  border: 1px solid rgba(34,211,238,.25);
  border-bottom-right-radius: 4px;
}
.k-msg.bot {
  align-self: flex-start;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-bottom-left-radius: 4px;
  color: var(--muted);
}
.k-msg.bot strong { color: var(--ink); font-weight: 600; }
.k-msg .doc {
  display: flex; align-items: center; gap: 8px;
  margin-top: 8px; padding: 8px 12px;
  background: rgba(34,211,238,.08);
  border: 1px dashed rgba(34,211,238,.35);
  border-radius: 8px;
  font-family: var(--font-m); font-size: 11.5px; color: var(--cyan);
}
.k-chat-note {
  padding: 10px 18px 14px;
  font-size: 11px;
  color: var(--faint);
  border-top: 1px solid var(--line);
}

/* ── ficha técnica (página de caso) ─────────────────────── */

.k-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}
.k-fact { background: var(--panel); padding: 20px 22px; }
.k-fact .t {
  font-family: var(--font-m); font-size: 10px; font-weight: 600;
  letter-spacing: .16em; text-transform: uppercase; color: var(--faint);
  margin-bottom: 8px;
}
.k-fact .v { font-size: 14px; color: var(--ink); line-height: 1.5; }
.k-fact .v a { color: var(--cyan); text-decoration: none; }
.k-fact .v a:hover { color: var(--cyan-hi); }

/* ── CTA ao vivo dos clientes (desligado por padrão) ────── */
/* Ligar = trocar data-live="off" por "on" no bloco da página do caso,
   mediante autorização do cliente. */
[data-live="off"] { display: none !important; }

/* ── faixa CTA final ────────────────────────────────────── */

.k-cta-band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(ellipse 60% 120% at 50% 100%, var(--cyan-dim), transparent),
    var(--panel);
  text-align: center;
}
.k-cta-band h2 { font-size: clamp(24px, 3.4vw, 34px); }
.k-cta-band p  { color: var(--muted); max-width: 52ch; margin: 16px auto 30px; }

/* ── footer ─────────────────────────────────────────────── */

.k-footer {
  border-top: 1px solid var(--line);
  padding: 52px 0 40px;
  font-size: 13px;
  color: var(--faint);
}
.k-footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.k-footer .brand {
  font-family: var(--font-h); font-weight: 500; font-size: 13px;
  letter-spacing: .22em; text-transform: uppercase; color: var(--ink);
}
.k-footer .tagline { margin-top: 8px; max-width: 34ch; }
.k-footer nav { display: flex; flex-direction: column; gap: 8px; }
.k-footer nav b {
  font-family: var(--font-m); font-size: 10px; font-weight: 600;
  letter-spacing: .16em; text-transform: uppercase; color: var(--faint);
  margin-bottom: 4px;
}
.k-footer a { color: var(--muted); text-decoration: none; transition: color .15s; }
.k-footer a:hover { color: var(--cyan-hi); }
.k-footer .legal {
  margin-top: 44px; padding-top: 20px;
  border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}

/* ── reveal on scroll (progressive enhancement) ─────────── */

.k-reveal { opacity: 0; transform: translateY(22px); transition: opacity 1.1s ease, transform 1.1s ease; }
.k-reveal.in { opacity: 1; transform: none; }

/* entrada em câmera lenta (hero e topos de página) */
.k-enter { opacity: 0; transform: translateY(26px); animation: k-enter 1.4s ease forwards; }
.k-enter-2 { animation-delay: .25s; }
.k-enter-3 { animation-delay: .5s; }
.k-enter-4 { animation-delay: .75s; }
.k-enter-5 { animation-delay: 1s; }
@keyframes k-enter { to { opacity: 1; transform: none; } }

/* conversa demonstrativa: mensagens aparecem uma a uma */
.k-chat .k-msg { opacity: 0; transform: translateY(14px); transition: opacity .9s ease, transform .9s ease; }
.k-chat.in .k-msg { opacity: 1; transform: none; }
.k-chat.in .k-msg:nth-child(1) { transition-delay: .3s; }
.k-chat.in .k-msg:nth-child(2) { transition-delay: 1.3s; }
.k-chat.in .k-msg:nth-child(3) { transition-delay: 2.4s; }
.k-chat.in .k-msg:nth-child(4) { transition-delay: 3.5s; }
.k-chat.in .k-msg:nth-child(5) { transition-delay: 4.6s; }
.k-chat.in .k-msg:nth-child(6) { transition-delay: 5.7s; }

@media (prefers-reduced-motion: reduce) {
  .k-reveal, .k-enter, .k-chat .k-msg { opacity: 1; transform: none; animation: none; transition: none; }
}