/* ── Tokens ──────────────────────────────────────────────── */
:root {
  --bg: #0e1517;
  --surface: #161f22;
  --surface-2: #1c272b;
  --line: #24333a;
  --text: #e9eeec;
  --muted: #8fa19d;
  --in: #57b98a;       /* recebida — verde dessaturado */
  --in-soft: rgba(87, 185, 138, 0.10);
  --out: #6e93b5;      /* enviada — aço */
  --out-soft: rgba(110, 147, 181, 0.10);
  --danger: #d97a6c;
  --display: "Space Grotesk", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --body: system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-size: 15px;
  line-height: 1.45;
}
a { color: inherit; text-decoration: none; }
.mono { font-family: var(--mono); font-size: 0.8em; letter-spacing: 0.01em; }

:focus-visible { outline: 2px solid var(--in); outline-offset: 2px; border-radius: 4px; }
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* ── Shell / topo ────────────────────────────────────────── */
.shell { max-width: 860px; margin: 0 auto; padding: 0 12px 24px; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 18px 4px 14px;
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; background: var(--bg); z-index: 5;
}
.brand-lockup { display: flex; align-items: center; gap: 12px; }
.brand-icon { border-radius: 10px; display: block; }
.login-icon { border-radius: 12px; margin-bottom: 10px; }
.brand-eyebrow {
  margin: 0; font-family: var(--mono); font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.22em; color: var(--in);
}
.brand { margin: 0; font-family: var(--display); font-size: 22px; font-weight: 700; }
.logout { color: var(--muted); font-size: 13px; padding: 6px 8px; }
.logout:hover { color: var(--text); }

/* ── Busca ───────────────────────────────────────────────── */
.searchbar { padding: 14px 0 4px; }
.searchbar input {
  width: 100%; padding: 11px 14px;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--line); border-radius: 10px;
  font: inherit;
}
.searchbar input::placeholder { color: var(--muted); }

/* ── Lista de conversas ──────────────────────────────────── */
.conv-ul { list-style: none; margin: 8px 0 0; padding: 0; }
.results-header {
  margin: 20px 0 2px; padding: 0 10px;
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.16em;
  color: var(--in);
}
.conv {
  display: flex; align-items: center; gap: 12px;
  padding: 13px 10px; border-bottom: 1px solid var(--line);
  border-left: 3px solid transparent;
}
.conv:hover { background: var(--surface); border-left-color: var(--in); }
.avatar {
  flex: none; width: 42px; height: 42px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--surface-2); border: 1px solid var(--line);
  font-family: var(--display); font-weight: 700; font-size: 17px; color: var(--in);
}
.conv-main { flex: 1; min-width: 0; display: grid; gap: 1px; }
.conv-name { font-family: var(--display); font-weight: 500; font-size: 15.5px; }
.conv-number { color: var(--muted); }
.conv-preview {
  color: var(--muted); white-space: nowrap; overflow: hidden;
  text-overflow: ellipsis; font-size: 13.5px; margin-top: 2px;
}
.conv-preview.is-out { color: #7d9db8; }
.conv-side { flex: none; display: grid; justify-items: end; gap: 6px; }
.conv-time { color: var(--muted); }
.conv-count {
  background: var(--surface-2); border: 1px solid var(--line);
  color: var(--muted); border-radius: 999px;
  padding: 1px 8px; font-size: 11px;
}
.empty { color: var(--muted); padding: 40px 10px; text-align: center; list-style: none; }

/* ── Thread ──────────────────────────────────────────────── */
.thread-shell { display: flex; flex-direction: column; height: 100dvh; padding-bottom: 0; }
.thread-topbar { flex: none; }
.back {
  font-size: 26px; line-height: 1; color: var(--muted);
  padding: 4px 10px 6px; border-radius: 8px;
}
.back:hover { color: var(--text); background: var(--surface); }
.thread-id { flex: 1; min-width: 0; }
.thread-name {
  margin: 0; font-family: var(--display); font-size: 17px; font-weight: 700;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.thread-number { margin: 0; color: var(--muted); }

#thread-body { flex: 1; overflow-y: auto; padding: 14px 4px 28px; scroll-behavior: smooth; }

.day-divider {
  display: flex; align-items: center; gap: 12px;
  margin: 22px 0 12px; color: var(--muted);
  font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.14em;
}
.day-divider::before, .day-divider::after {
  content: ""; flex: 1; height: 1px; background: var(--line);
}

/* assinatura: balões retos com barra lateral por direção,
   metadados sempre visíveis — aqui o metadado é o produto */
.msg {
  max-width: min(78%, 560px);
  margin: 6px 0; padding: 8px 12px 9px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 10px;
}
.msg-in  { border-left: 3px solid var(--in);  background: linear-gradient(var(--in-soft), var(--in-soft)) var(--surface); margin-right: auto; }
.msg-out { border-right: 3px solid var(--out); background: linear-gradient(var(--out-soft), var(--out-soft)) var(--surface); margin-left: auto; }
.msg-meta { margin: 0 0 3px; color: var(--muted); font-size: 11px; }
.msg-out .msg-meta { text-align: right; }
.ticks { letter-spacing: -0.18em; margin-left: 2px; }
.ticks.is-read { color: #5db4e8; }
.ticks.is-failed { color: var(--danger); }
.msg-type { margin: 0; color: var(--muted); font-size: 13.5px; font-style: italic; }
.msg-body { margin: 0; white-space: pre-wrap; overflow-wrap: break-word; }

.msg-image {
  display: block; max-width: 100%; max-height: 320px;
  border-radius: 8px; margin: 2px 0;
}
.msg-sticker { max-height: 140px; }
.msg-audio { width: min(300px, 100%); margin: 2px 0; display: block; }
.msg-video { max-width: 100%; max-height: 320px; border-radius: 8px; margin: 2px 0; display: block; }
.msg-doc { color: var(--in); font-style: normal; text-decoration: underline; }

.link-card {
  display: flex; gap: 10px; align-items: stretch;
  margin-top: 8px; padding: 8px;
  background: var(--surface-2); border: 1px solid var(--line);
  border-radius: 8px;
}
.link-card:hover { border-color: var(--in); }
.link-thumb {
  flex: none; width: 96px; height: 68px;
  object-fit: cover; border-radius: 6px;
}
.link-info { min-width: 0; display: grid; gap: 2px; align-content: center; }
.link-site { color: var(--in); font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.12em; }
.link-title {
  font-family: var(--display); font-weight: 500; font-size: 14px; line-height: 1.3;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.link-desc { color: var(--muted); font-size: 12.5px; line-height: 1.35; }

.msg-transcript {
  margin: 6px 0 0; padding: 7px 10px;
  border-top: 1px dashed var(--line);
  color: var(--text); font-size: 13.5px; line-height: 1.5;
}
.msg-transcript.is-pending { color: var(--muted); font-style: italic; }
.transcript-tag {
  display: block; margin-bottom: 2px;
  font-size: 10px; text-transform: uppercase; letter-spacing: 0.16em;
  color: var(--muted);
}

/* ── Login ───────────────────────────────────────────────── */
.login-wrap { min-height: 100dvh; display: grid; place-items: center; padding: 20px; }
.login-card {
  width: 100%; max-width: 360px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 14px; padding: 30px 26px 26px;
  display: grid; gap: 8px;
}
.login-card .brand { font-size: 24px; }
.login-hint { margin: 0 0 12px; color: var(--muted); font-size: 13px; }
.login-error { margin: 0 0 6px; color: var(--danger); font-size: 13.5px; }
.login-card label {
  font-family: var(--mono); font-size: 11px; text-transform: uppercase;
  letter-spacing: 0.14em; color: var(--muted); margin-top: 6px;
}
.login-card input {
  padding: 11px 12px; background: var(--bg); color: var(--text);
  border: 1px solid var(--line); border-radius: 8px; font: inherit;
}
.login-card button {
  margin-top: 16px; padding: 12px;
  background: var(--in); color: #0b1410;
  font-family: var(--display); font-weight: 700; font-size: 15px;
  border: none; border-radius: 8px; cursor: pointer;
}
.login-card button:hover { filter: brightness(1.1); }

/* ── Desktop: duas colunas viriam na Parte 2; por ora, largura confortável ── */
@media (min-width: 720px) {
  .shell { padding: 0 20px 24px; }
  .msg { max-width: 62%; }
}