/* Djunta Mon — estilos do frontend. Sem framework: CSS simples, tema claro/escuro, responsivo.
   O foco de desenho é a secção 8 do plano: a ESPERA nunca pode parecer avaria — daí a linha de
   estado viva (.status-line) com um ponto a pulsar, e o texto a correr suave. */

:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --surface-2: #eef1f5;
  --border: #dfe3ea;
  --text: #1c2430;
  --text-dim: #5b6675;
  --accent: #0a6cff;
  --accent-ink: #ffffff;
  --user-bubble: #0a6cff;
  --user-ink: #ffffff;
  --ok: #1a8f4c;
  --warn: #b8860b;
  --danger: #c23a2b;
  --shadow: 0 1px 3px rgba(20, 30, 50, 0.08), 0 6px 24px rgba(20, 30, 50, 0.06);
  --radius: 14px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1420;
    --surface: #171d2b;
    --surface-2: #1f2738;
    --border: #2b3446;
    --text: #e6ebf2;
    --text-dim: #9aa6b8;
    --accent: #4d9bff;
    --user-bubble: #2b6fd6;
    --user-ink: #ffffff;
    --ok: #46c47c;
    --warn: #e0b64a;
    --danger: #ff6f61;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 8px 30px rgba(0, 0, 0, 0.35);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.55;
}

button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; font-size: inherit; }

/* ---------------- Login ---------------- */

.login-screen {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 30px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.brand {
  margin: 0;
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.5px;
  text-align: center;
  color: var(--accent);
}
.brand-sub {
  margin: -6px 0 8px;
  text-align: center;
  color: var(--text-dim);
  font-size: 13.5px;
}

.field { display: flex; flex-direction: column; gap: 5px; }
.field > span { font-size: 13px; color: var(--text-dim); font-weight: 600; }
.field input {
  padding: 11px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-2);
  color: var(--text);
  outline: none;
  transition: border-color 0.15s;
}
.field input:focus { border-color: var(--accent); }

.hint { margin: 2px 0 4px; font-size: 12.5px; color: var(--text-dim); }

.login-error {
  background: color-mix(in srgb, var(--danger) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--danger) 40%, transparent);
  color: var(--danger);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 13px;
}

.btn-primary {
  margin-top: 4px;
  padding: 12px;
  border: none;
  border-radius: 10px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
  font-size: 15px;
  transition: filter 0.15s, opacity 0.15s;
}
.btn-primary:hover { filter: brightness(1.06); }
.btn-primary:disabled { opacity: 0.6; cursor: progress; }

.login-foot { color: var(--text-dim); font-size: 12px; }

/* ---------------- Chat ---------------- */

.chat-screen {
  height: 100%;
  display: flex;
  flex-direction: column;
  max-width: 900px;
  margin: 0 auto;
  background: var(--bg);
}

.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  flex-wrap: wrap;
}
.chat-header-left { display: flex; align-items: center; gap: 10px; }
.chat-header-right { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

.brand-small { font-weight: 700; color: var(--accent); font-size: 16px; }
.cycle-badge {
  font-size: 12px;
  color: var(--text-dim);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 10px;
}

.profile-picker { display: flex; align-items: center; gap: 6px; }
.profile-label { font-size: 12px; color: var(--text-dim); }
#profile-select {
  padding: 6px 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
}

.user-chip { display: flex; flex-direction: column; line-height: 1.15; text-align: right; }
.user-name { font-size: 13px; font-weight: 600; }
.user-scope { font-size: 11.5px; color: var(--text-dim); }

.btn-ghost {
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--text-dim);
  font-size: 13px;
  transition: background 0.15s, color 0.15s;
}
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }

/* mensagens */
.messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px 16px 8px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.welcome { color: var(--text-dim); padding: 12px 4px; }
.welcome h2 { margin: 0 0 6px; color: var(--text); font-size: 20px; }
.welcome p { margin: 0 0 14px; max-width: 60ch; }
.suggestions { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.suggestions button {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 13.5px;
  text-align: left;
  transition: border-color 0.15s, background 0.15s;
}
.suggestions button:hover { border-color: var(--accent); background: var(--surface-2); }

.msg { display: flex; flex-direction: column; max-width: 100%; }
.msg-user { align-items: flex-end; }
.msg-assistant { align-items: flex-start; }

.bubble {
  padding: 11px 15px;
  border-radius: 16px;
  max-width: min(680px, 92%);
  word-wrap: break-word;
  overflow-wrap: anywhere;
}
.msg-user .bubble {
  background: var(--user-bubble);
  color: var(--user-ink);
  border-bottom-right-radius: 5px;
}
.msg-assistant .bubble {
  background: var(--surface);
  border: 1px solid var(--border);
  border-bottom-left-radius: 5px;
}

/* markdown dentro da bolha do assistente */
.bubble :first-child { margin-top: 0; }
.bubble :last-child { margin-bottom: 0; }
.bubble p { margin: 0 0 8px; }
.bubble ul, .bubble ol { margin: 6px 0; padding-left: 20px; }
.bubble code { font-family: var(--mono); font-size: 0.9em; background: var(--surface-2); padding: 1px 4px; border-radius: 4px; }
.bubble pre { background: var(--surface-2); padding: 10px; border-radius: 8px; overflow-x: auto; }
.bubble pre code { background: none; padding: 0; }
.bubble h1, .bubble h2, .bubble h3, .bubble h4 { margin: 12px 0 6px; line-height: 1.3; }

/* tabelas — a razão de ser do markdown aqui */
.table-wrap { overflow-x: auto; margin: 8px 0; }
.bubble table { border-collapse: collapse; font-size: 13px; width: auto; }
.bubble th, .bubble td { border: 1px solid var(--border); padding: 5px 9px; text-align: right; white-space: nowrap; }
.bubble th { background: var(--surface-2); font-weight: 600; }
.bubble td:first-child, .bubble th:first-child { text-align: left; }

/* linha de estado viva — o coração da UX da espera (secção 8) */
.status-line {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--text-dim);
  font-size: 13.5px;
  padding: 4px 2px;
  min-height: 22px;
}
.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.1s ease-in-out infinite;
  flex-shrink: 0;
}
@keyframes pulse {
  0%, 100% { opacity: 0.35; transform: scale(0.85); }
  50% { opacity: 1; transform: scale(1.15); }
}
.status-text { transition: opacity 0.2s; }

@media (prefers-reduced-motion: reduce) {
  .status-dot { animation: none; opacity: 0.8; }
  .status-text { transition: none; }
}

/* passos (disclosure "ver passos") */
.steps { margin-top: 6px; font-size: 12.5px; }
.steps summary { color: var(--text-dim); cursor: pointer; user-select: none; }
.steps ul { margin: 6px 0 0; padding-left: 18px; color: var(--text-dim); }
.steps li { margin: 2px 0; }

/* rodapé de metadados da resposta */
.meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 6px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border-radius: 999px;
  padding: 2px 9px;
  border: 1px solid var(--border);
}
.badge-ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 45%, transparent); }
.badge-warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 50%, transparent); }
.meta .suspects { color: var(--warn); }

.error-bubble {
  background: color-mix(in srgb, var(--danger) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--danger) 35%, transparent);
  color: var(--danger);
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 13.5px;
}

/* composer */
.composer {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 12px 16px 16px;
  border-top: 1px solid var(--border);
  background: var(--surface);
}
.input {
  flex: 1;
  resize: none;
  max-height: 180px;
  padding: 11px 13px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface-2);
  color: var(--text);
  outline: none;
  line-height: 1.5;
}
.input:focus { border-color: var(--accent); }

.btn-send {
  padding: 11px 18px;
  border: none;
  border-radius: 12px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
  transition: filter 0.15s, opacity 0.15s;
}
.btn-send:hover { filter: brightness(1.06); }
.btn-send:disabled { opacity: 0.55; cursor: default; }

.btn-stop {
  padding: 11px 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: transparent;
  color: var(--danger);
  font-weight: 600;
}
.btn-stop:hover { background: color-mix(in srgb, var(--danger) 10%, transparent); }

@media (max-width: 620px) {
  .user-chip { display: none; }
  .profile-label { display: none; }
  .bubble { max-width: 100%; }
}