/* Uma opção por linha (aceite do Jimi) e sem preenchimento: só a borda. */
.opts { display: flex; flex-direction: column; align-items: stretch; gap: 6px; margin-top: 10px; max-width: 460px; }
.opt {
  border: 1px solid var(--accent-border);
  background: none;
  color: var(--text);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 13px;
  text-align: left;
  cursor: pointer;
}
.opt:hover { border-color: var(--accent); background: none; }
.opt.chosen { border: 2px solid var(--accent); color: var(--accent); font-weight: 600; background: none; }
.opt-count {
  display: inline-block;
  min-width: 16px;
  padding: 0 5px;
  margin-left: 4px;
  border-radius: 9px;
  background: color-mix(in srgb, var(--text) 16%, transparent);
  font-size: 11px;
}
.opts[data-fechada] .opt { opacity: .6; }
.file-img {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  max-height: min(74vh, 760px);
  border-radius: 8px;
  background: var(--panel-2);
  cursor: zoom-in;
}
/* Segundo clique: 1:1, com rolagem — print de tela pequeno precisa de zoom. */
.file-img.natural {
  max-width: none;
  max-height: none;
  cursor: zoom-out;
}
.file-img[hidden] { display: none; }
.file-frame {
  width: 100%;
  height: min(72vh, 720px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}
.file-frame[hidden], .file-body[hidden] { display: none; }
/* .overlay .card e .card.wide têm especificidade maior que .file-card:
   sem os três seletores juntos, largura, padding e gap não mudam nada. */
.overlay .card.file-card {
  width: min(1040px, 96vw);
  max-height: 92vh;
  padding: 14px 16px 12px;
  gap: 6px;
}
.file-actions { display: flex; gap: 6px; align-items: center; }
.file-body {
  max-height: none;
  flex: 1 1 auto;
  min-height: 90px;
  overflow: auto;
  margin: 4px 0 0;
  padding: 10px 12px;
  border: 1px solid var(--border, rgba(128, 128, 128, .25));
  border-radius: 8px;
  background: var(--panel-2);
  color: var(--text);
  font: 12.5px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  white-space: pre;
  tab-size: 4;
}
.ticks { color: var(--muted-2); font-size: 11px; letter-spacing: -1px; }
.ticks.delivered { color: var(--muted); }
.ticks.read { color: var(--accent); letter-spacing: -2px; }
.ticks.queued { opacity: .55; }

.peer-offline {
  margin-left: 6px;
  color: var(--warn);
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.msg { position: relative; }
.msg-reply {
  position: absolute;
  top: 4px;
  right: 4px;
  border: 0;
  background: none;
  color: var(--muted-2);
  font-size: 13px;
  line-height: 1;
  padding: 3px 5px;
  border-radius: 6px;
  cursor: pointer;
  opacity: 0;
  transition: opacity .12s;
}
.msg:hover .msg-reply, .msg-reply:focus-visible { opacity: 1; }
.msg-reply:hover { color: var(--accent); background: var(--hover); }

@media (pointer: coarse) {
  .msg-reply { opacity: .7; top: 2px; right: 2px; }
}
.ghost.small.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 7px;
  color: var(--muted);
}
.ghost.small.icon:hover { color: var(--text); }
.badge.unread {
  background: var(--danger);
  color: #fff;
  border-color: var(--danger);
  font-weight: 600;
}

.reply-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  margin-bottom: 6px;
  font-size: 12px;
  color: var(--muted);
  background: var(--panel-2);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
}
.reply-bar b { color: var(--accent); font-weight: 600; }
.reply-bar button {
  margin-left: auto;
  border: 0;
  background: none;
  color: var(--muted);
  font-size: 15px;
  cursor: pointer;
  padding: 0 4px;
}
.reply-bar button:hover { color: var(--danger); }

.quote {
  border-left: 3px solid var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  padding: 4px 8px;
  border-radius: 4px;
  margin-bottom: 6px;
  font-size: 12px;
  color: var(--muted);
}
.quote b { color: var(--accent); font-weight: 600; }
.fav {
  margin: 0;
  padding: 0 3px;
  border: 0;
  background: none;
  color: #6d6258;
  font-size: 12px;
  cursor: pointer;
  opacity: 0;
}
.persona:hover .fav, .room:hover .fav, .fav.on { opacity: 1; }
.fav.on { color: #e8c46f; }
.fav:hover { color: var(--accent); }
.table-wrap { overflow-x: auto; margin: 8px 0; }
.msg table { border-collapse: collapse; font-size: 13px; min-width: 50%; }
.msg th, .msg td {
  border: 1px solid var(--line);
  padding: 6px 10px;
  text-align: left;
  vertical-align: top;
}
.msg th { background: var(--panel-2); font-weight: 600; color: var(--text); }
.msg tbody tr:nth-child(even) { background: color-mix(in srgb, var(--text) 4%, transparent); }

.mention {
  font-style: italic;
  font-weight: 600;
  color: var(--accent);
  text-decoration: underline dotted;
  text-underline-offset: 3px;
}

:root {
  --bg: #080706;
  --panel: #12100d;
  --panel-2: #1c1713;
  --line: #33291f;
  --text: #f2ece5;
  --muted: #a3948a;
  --accent: #f07c1e;
  --accent-2: #ffb25e;
  --warn: #e0a030;
  --danger: #f4685a;
  --radius: 10px;
  color-scheme: dark;
  --bg-deep: #0b0907;
  --accent-strong: #d96a1c;
  --accent-border: #5c3c1f;
  --accent-soft-2: #2b1e14;
  --hover: #2e2419;
  --muted-2: #6d6258;
  --muted-strong: #cbbfb4;
  --danger-border: #6e2a22;
  --warn-border: #6b4a12;
  --accent-soft: #3a2416;
  --logo-ring: #7a5430;
  --logo-halo: rgba(240, 124, 30, .22);
  --dot: #4b4038;
  --danger-soft: #2a1712;
  --danger-strong: #ff8f84;
  --human: #7fb3e8;
  --human-border: #2b3f55;
  --overlay: rgba(5, 8, 12, .94);
  --warn-soft: #2a1c12;

}

/* Tema claro: laranja mais escuro para manter contraste sobre fundo claro. */
:root[data-theme="light"] {
  --bg: #f6f2ec;
  --panel: #fffdfa;
  --panel-2: #f1ebe2;
  --line: #e2d9cc;
  --text: #1f1a15;
  --muted: #6f6559;
  --accent: #c95f0c;
  --accent-2: #a54f0a;
  --warn: #a86b12;
  --danger: #b23a2c;
  color-scheme: light;
  --bg-deep: #ece5db;
  --accent-strong: #b3540a;
  --accent-border: #e0a86f;
  --accent-soft-2: #f6e3ce;
  --hover: #efe7dc;
  --muted-2: #857a6d;
  --muted-strong: #4a4136;
  --danger-border: #e0b4ad;
  --warn-border: #e0c48f;
  --accent-soft: #f6e3ce;
  --logo-ring: #d9c3a6;
  --logo-halo: rgba(201, 95, 12, .16);
  --dot: #cfc4b6;
  --danger-soft: #fdeceb;
  --danger-strong: #a33224;
  --human: #1f5f9c;
  --human-border: #b9d2ea;
  --overlay: rgba(255, 255, 255, .96);
  --warn-soft: #fdf4e3;

}

/* #87: o branco sobre o laranja media 2,76:1 no escuro. Fundo suave, borda e texto do tema passam de 4,5:1. */
.menu-button[data-theme-set].active {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--text);
  font-weight: 600;
}

/* #87: o seletor liga/desliga das notificações e do som. Ligado = trilho no laranja. */
.sw-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 6px 10px; border-radius: 6px; cursor: pointer; }
.sw-row:hover { background: var(--hover); }
.sw-label { font-size: 13px; color: var(--text); }
.switch { flex: none; position: relative; width: 36px; height: 20px; margin: 0; padding: 0; border-radius: 999px; border: 1px solid var(--muted); background: var(--bg-deep); cursor: pointer; transition: background .15s, border-color .15s; }
.switch .knob { position: absolute; top: 2px; left: 2px; width: 14px; height: 14px; border-radius: 50%; background: var(--muted-strong); transition: left .15s, background .15s; }
.switch[aria-checked="true"] { background: var(--accent); border-color: var(--accent); }
.switch[aria-checked="true"] .knob { left: 18px; background: var(--bg-deep); }
.switch:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.switch:disabled { opacity: .5; cursor: not-allowed; }
.sw-row:has(.switch:disabled) { cursor: not-allowed; }
.sw-row:has(.switch:disabled) .sw-label { color: var(--muted); }
.menu-hint { padding: 2px 10px 6px; font-size: 11.5px; line-height: 1.4; color: var(--muted); max-width: 260px; }
.menu-hint.warn { color: var(--muted-strong); }
.menu-hint.warn::before { content: "⚠ "; color: var(--warn); }

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  display: grid;
  grid-template-rows: 54px 1fr;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

[hidden] { display: none !important; }

header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.brand { font-size: 15px; font-weight: 600; letter-spacing: .3px; }
.brand-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  /* O SVG tem fundo escuro próprio: sem anel ele desaparece no tema escuro. */
  border: 1px solid var(--logo-ring);
  box-shadow: 0 0 0 2px var(--logo-halo), 0 2px 8px rgba(0, 0, 0, .3);
}
.brand .brand-nepta { color: var(--accent); }

/* O texto ao lado do ícone fica 1px abaixo do centro visual do logo. */
header .brand { position: relative; top: 1px; }
.room-title { color: var(--muted); font-size: 13px; }

.version {
  color: var(--muted);
  font-size: 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 1px 8px;
}

.user-menu { position: relative; }

.user-button {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--panel-2);
  color: var(--text);
}
.user-button:hover { border-color: var(--accent); }

.menu {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  min-width: 230px;
  padding: 6px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 14px 34px rgba(0, 0, 0, .5);
  z-index: 40;
}

.menu-label {
  padding: 6px 10px 2px;
  font-size: 10px;
  letter-spacing: .8px;
  text-transform: uppercase;
  color: var(--muted);
}

.menu-item {
  display: block;
  width: 100%;
  margin: 0;
  padding: 7px 10px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--text);
  font-size: 13px;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}
.menu-item:hover { background: var(--hover); }

.menu-sep { height: 1px; margin: 6px 4px; background: var(--line); }

.grant-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-bottom: 6px;
  font-size: 12.5px;
}
.grant-actions { display: flex; gap: 4px; flex-wrap: wrap; }
.grant-actions button { margin: 0; padding: 4px 8px; font-size: 11px; }
.overlay .grant-actions button.ghost { border-color: var(--line); }

.menu-row { display: flex; gap: 6px; padding: 2px 10px 4px; }

.menu-button {
  flex: 1;
  margin: 0;
  padding: 6px 0;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--panel);
  color: var(--text);
  font-size: 12px;
}
.menu-button:hover { border-color: var(--accent); color: var(--accent-2); }

button.zoom { padding: 4px 9px; font-size: 12px; margin: 0 0 0 6px; }

#send {
  width: 42px;
  height: 42px;
  padding: 0;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  color: #fff;
}
#send:hover { background: var(--accent-soft); border-color: var(--accent-soft); }
#send:disabled { opacity: .45; }

/* #6 (a): o ↵ só aparece em tela de toque, onde não existe Shift+Enter. */
.newline-button {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  place-items: center;
  border-radius: 11px;
  font-size: 18px;
  line-height: 1;
  flex: 0 0 auto;
}
@media (pointer: coarse) {
  .newline-button { display: grid; }
}
.spacer { flex: 1; }
.me { font-size: 13px; color: var(--muted); }
.me b { color: var(--text); font-weight: 600; }

button {
  font: inherit;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 14px;
  cursor: pointer;
}
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent-strong); border-color: var(--accent-strong); }
button.ghost { background: transparent; }

main {
  display: grid;
  /* #5: minmax(0, 1fr), para que nada da conversa alargue a página além da tela. */
  grid-template-columns: var(--sidebar-width, 300px) minmax(0, 1fr);
  min-height: 0;
}

aside {
  position: relative;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
  padding: 14px 12px 0;
}

.sidebar-scroll {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 2px;
}

.resizer {
  position: absolute;
  top: 0;
  right: 0;
  width: 6px;
  height: 100%;
  cursor: col-resize;
  z-index: 6;
  background: transparent;
}
.resizer:hover, body.resizing .resizer { background: var(--accent); opacity: .45; }
body.resizing { cursor: col-resize; user-select: none; }

aside h2 {
  margin: 18px 6px 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .9px;
  text-transform: uppercase;
  color: var(--muted-strong);
}
aside h2:first-child { margin-top: 0; }

.list { display: flex; flex-direction: column; gap: 1px; }

.group {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 10px 6px 2px;
  padding: 0;
  background: transparent;
  border: 0;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .8px;
  text-transform: uppercase;
  color: var(--muted-strong);
  cursor: pointer;
}
.group:hover { color: var(--text); }
.group .count { margin-left: auto; opacity: .7; }

.collapse-toggle {
  padding: 0 4px;
  background: transparent;
  border: 0;
  color: var(--muted);
  font-size: 11px;
  cursor: pointer;
}
.collapse-toggle:hover { color: var(--text); }

.sidebar-foot {
  margin: 0 -12px;
  padding: 14px 12px 14px;
  border-top: 1px solid var(--line);
  background: var(--panel);
}

.stsdata {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel-2);
  text-decoration: none;
}
.stsdata:hover { border-color: var(--accent); }

.stsdata-powered {
  font-size: 9px;
  letter-spacing: 1.1px;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}

.stsdata-mark { width: 22px; height: 21px; flex: 0 0 auto; }

.stsdata-name {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1.6px;
  color: var(--text);
}
.stsdata:hover .stsdata-name { color: var(--accent-2); }

.persona, .room {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 8px;
  border-radius: 8px;
  cursor: pointer;
  border: 1px solid transparent;
  min-width: 0;
}
.persona { position: relative; }
.persona:hover, .room:hover { background: var(--panel-2); }
.room.active { background: var(--accent-soft-2); border-color: var(--accent-border); }

.room-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lock { color: var(--muted); flex: 0 0 auto; }
.persona.active { background: var(--accent-soft-2); border-color: var(--accent-border); }

.persona .mention, .persona-edit {
  padding: 0 6px;
  line-height: 18px;
  font-size: 12px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--muted);
}
.persona .mention:hover, .persona-edit:hover { border-color: var(--line); color: var(--text); }

.persona-actions {
  position: absolute;
  right: 4px;
  top: 4px;
  bottom: 4px;
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 0 4px 0 18px;
  border-radius: 0 7px 7px 0;
  background: linear-gradient(90deg, transparent, var(--panel-2) 35%);
  opacity: 0;
  pointer-events: none;
}
.persona.active .persona-actions { background: linear-gradient(90deg, transparent, var(--accent-soft-2) 35%); }
.persona:hover .persona-actions { opacity: 1; pointer-events: auto; }

.room-rename {
  padding: 0 6px;
  line-height: 18px;
  font-size: 12px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--muted);
  opacity: 0;
  transition: opacity .12s;
}
.room:hover .room-rename { opacity: 1; }
.room-rename:hover { border-color: var(--line); color: var(--text); }
/* #3: arquivar fica ao lado do renomear; em tela de toque não existe hover, então os dois ficam sempre visíveis. */
.room-archive:hover { color: var(--danger); }
@media (hover: none) { .room-rename { opacity: 1; } }

.room-input {
  flex: 1;
  min-width: 0;
  background: var(--bg-deep);
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: var(--text);
  padding: 2px 6px;
  font: inherit;
}
.room-input:focus { outline: none; }

.icon {
  margin-left: 6px;
  padding: 0 8px;
  line-height: 18px;
  font-size: 14px;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
}
.icon:hover { color: var(--text); border-color: var(--accent); }

.checklist {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 220px;
  overflow-y: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px;
}
.check { display: flex; align-items: center; gap: 8px; font-size: 13px; cursor: pointer; }
.check small { color: var(--muted); margin-left: auto; }

.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--dot); flex: 0 0 auto; }
.dot.online { background: var(--accent-2); }

.persona .who { min-width: 0; flex: 1; display: flex; flex-direction: column; }
.persona .name { font-weight: 600; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.persona .meta {
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.badge {
  margin-left: auto;
  font-size: 10px;
  letter-spacing: .4px;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 1px 7px;
  white-space: nowrap;
}
.badge.warn { color: var(--warn); border-color: var(--warn-border); }
.badge.danger { color: var(--danger); border-color: var(--danger-border); }

.resume {
  margin-left: 6px;
  padding: 2px 8px;
  font-size: 11px;
  background: transparent;
  border-color: var(--danger-border);
  color: var(--danger);
}

.system-note {
  max-width: 760px;
  margin: 16px auto;
  padding: 8px 12px;
  border: 1px solid var(--warn-border);
  border-radius: 8px;
  background: color-mix(in srgb, var(--warn) 8%, transparent);
  color: var(--warn);
  font-size: 12.5px;
  text-align: center;
}

#chat { display: flex; flex-direction: column; min-height: 0; }

.peer-bar {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 24px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  font-size: 13px;
}
.peer-bar .peer-name { font-weight: 600; }
.peer-bar .peer-model {
  font-size: 11px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 1px 8px;
}

.messages { flex: 1; overflow-y: auto; padding: 20px 24px 8px; }

.load-older { padding: 8px 24px 0; text-align: center; }
.load-older button {
  margin: 0;
  padding: 5px 12px;
  font-size: 12px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--muted);
  border-radius: 999px;
}
.load-older button:hover { color: var(--text); border-color: var(--accent); }

/* --------------------------------------------------- membros da sala ---- */
.members-add { display: flex; gap: 8px; margin: 10px 0 6px; }
.members-add input {
  flex: 1;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 8px 12px;
  color: var(--text);
  font: inherit;
}
.members-add input::placeholder { color: var(--muted-2); }
.members-add button {
  margin: 0;
  padding: 0 16px;
  background: var(--accent);
  color: #1a0f06;
  border: 0;
  border-radius: 9px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.members-list { max-height: 340px; overflow-y: auto; margin-top: 6px; }
.member-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 6px;
  border-radius: 9px;
}
.member-row:hover { background: var(--panel-2); }
.member-avatar {
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  border-radius: 9px;
  display: grid;
  place-items: center;
  font-size: 11px;
  font-weight: 700;
  background: var(--accent-soft);
  color: var(--accent);
}
.member-who { flex: 1; min-width: 0; }
.member-name { display: flex; align-items: center; gap: 6px; }
.member-who small { color: var(--muted); font-size: 11.5px; }
.member-row select {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 8px;
  padding: 5px 8px;
  font: inherit;
  font-size: 12.5px;
}
.member-remove {
  margin: 0;
  width: 26px;
  height: 26px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--muted-2);
  font-size: 16px;
  border-radius: 7px;
  cursor: pointer;
}
.member-remove:hover { color: var(--danger); background: var(--danger-soft); }

.tag {
  font-size: 10px;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 1px 6px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
}
.tag.human { color: var(--human); border-color: var(--human-border); }
.tag.ai { color: var(--accent); border-color: var(--accent-border); }

.thinking {
  padding: 2px 24px 6px;
  font-size: 12.5px;
  color: var(--muted);
  font-style: italic;
}
.thinking .pulse {
  color: var(--accent-2);
  animation: pulse 1.2s ease-in-out infinite;
  margin-right: 4px;
}
@keyframes pulse {
  0%, 100% { opacity: .25; }
  50% { opacity: 1; }
}

.empty { color: var(--muted); text-align: center; margin-top: 80px; }

.msg { max-width: 100%; margin-bottom: 14px; display: flex; gap: 10px; align-items: flex-end; }
.msg.mine { flex-direction: row-reverse; }

.avatar {
  width: 32px; height: 32px; flex: 0 0 auto;
  border-radius: 9px;
  display: grid; place-items: center;
  font-size: 12px; font-weight: 700;
  background: var(--hover); color: var(--accent);
}
.msg.mine .avatar { background: var(--accent-soft-2); color: var(--accent-2); }

.msg .content {
  min-width: 0;
  max-width: min(680px, 78%);
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 14px 14px 14px 4px;
  padding: 8px 12px;
}
.msg.mine .content {
  background: var(--accent-soft);
  border-color: var(--accent-border);
  border-radius: 14px 14px 4px 14px;
}
.msg.mine .head { text-align: right; }

.ticks { margin-left: 6px; letter-spacing: -2px; color: var(--muted); }
.ticks.read { color: var(--accent); }
.msg .head { font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.msg .head b { color: var(--accent); font-weight: 600; }
.msg.mine .head b { color: var(--accent-2); }
.msg .head .tag { color: var(--warn); }
.msg .head time { margin-left: 8px; }

.msg-actions { margin-left: 10px; display: inline-flex; gap: 2px; opacity: .5; transition: opacity .12s; }
.msg:hover .msg-actions { opacity: 1; }
.msg-action {
  display: grid;
  place-items: center;
  width: 22px;
  height: 20px;
  padding: 0;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 5px;
  color: var(--muted);
}
.msg-action:hover { border-color: var(--line); color: var(--text); }
.edited { color: var(--muted); font-size: 11px; }
.deleted { color: var(--muted); }
.msg-edit {
  width: 100%;
  min-height: 60px;
  background: var(--bg-deep);
  border: 1px solid var(--accent);
  border-radius: 8px;
  color: var(--text);
  padding: 8px 10px;
  font: inherit;
}
.msg-edit-actions { display: flex; gap: 8px; margin-top: 6px; }
.msg-edit-actions button { padding: 4px 10px; font-size: 12px; }

.body { word-wrap: break-word; }
.body p { margin: 0 0 8px; }
.body p:last-child { margin-bottom: 0; }
.body code {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 1px 5px;
  font: 12.5px ui-monospace, SFMono-Regular, Consolas, monospace;
}
.body ul { margin: 4px 0 8px; padding-left: 22px; }
.body a { color: var(--accent); }

pre {
  margin: 8px 0;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
pre .code-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 10px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
  text-transform: lowercase;
}
pre .code-head button { padding: 2px 8px; font-size: 11px; }
pre code {
  display: block;
  padding: 12px;
  overflow-x: auto;
  font: 12.5px/1.55 ui-monospace, SFMono-Regular, Consolas, monospace;
  background: none;
  border: 0;
}

.composer {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px 18px 16px;
  border-top: 1px solid var(--line);
  background: var(--panel);
  position: relative;
}

.composer-row {
  display: flex;
  align-items: flex-end;
  gap: 10px;
}

.round-ghost {
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  padding: 0;
  border-radius: 11px;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
}
.round-ghost:hover { color: var(--text); border-color: var(--accent); }

.attach-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.attach-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px 4px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-2);
  font-size: 12px;
  max-width: 280px;
}
.attach-chip span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.attach-chip small { color: var(--muted); }
.attach-chip button {
  margin: 0;
  padding: 0 4px;
  background: transparent;
  border: 0;
  color: var(--muted);
  font-size: 13px;
}
.attach-chip button:hover { color: var(--danger); }

.attachments { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.attach-img {
  display: block;
  max-width: 260px;
  max-height: 220px;
  border-radius: 9px;
  border: 1px solid var(--line);
}
.attach-file {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--bg-deep);
  text-decoration: none;
  color: var(--text);
  font-size: 12.5px;
}
.attach-file:hover { border-color: var(--accent); }
.attach-file small { display: block; color: var(--muted); font-size: 11px; }
.attach-ext {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 7px;
  background: var(--panel-2);
  color: var(--accent);
  font-size: 10px;
  font-weight: 700;
}

textarea {
  flex: 1;
  resize: none;
  max-height: 220px;
  min-height: 44px;
  background: var(--bg-deep);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  padding: 11px 13px;
  font: inherit;
}
textarea:focus { outline: none; border-color: var(--accent); }

.mention-box {
  position: absolute;
  bottom: calc(100% - 4px);
  left: 18px;
  width: 340px;
  max-height: 240px;
  overflow-y: auto;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, .45);
  z-index: 5;
}
.mention-box .item { padding: 8px 11px; cursor: pointer; display: flex; gap: 8px; align-items: center; }
.mention-box .item.active, .mention-box .item:hover { background: var(--hover); }
.mention-box .item small { color: var(--muted); margin-left: auto; }

.overlay {
  position: fixed; inset: 0;
  display: grid; place-items: center;
  background: var(--overlay);
  z-index: 20;
}
.overlay .card {
  width: min(420px, 92vw);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.overlay h2 { margin: 0 0 2px; font-size: 17px; }
.overlay p { margin: 0 0 10px; font-size: 12.5px; }
.overlay label { font-size: 12px; color: var(--muted); margin-top: 6px; }
.overlay input {
  background: var(--bg-deep);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  padding: 10px 12px;
  font: inherit;
}
.overlay input:focus { outline: none; border-color: var(--accent); }

.overlay select {
  appearance: none;
  -webkit-appearance: none;
  background-color: var(--bg-deep);
  background-image:
    linear-gradient(45deg, transparent 50%, var(--muted) 50%),
    linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 18px) calc(50% + 2px), calc(100% - 13px) calc(50% + 2px);
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  padding: 10px 34px 10px 12px;
  font: inherit;
  cursor: pointer;
}
.overlay select:hover { border-color: var(--accent-border); }
.overlay select:focus { outline: none; border-color: var(--accent); }
.overlay select option { background: var(--bg-deep); color: var(--text); }
.overlay button { margin-top: 14px; background: var(--accent-strong); border-color: var(--accent-strong); }

.overlay button.ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--text);
}
.overlay button.ghost:hover {
  background: transparent;
  border-color: var(--accent);
  color: var(--accent-2);
}

.overlay button.ghost.danger { color: var(--danger); border-color: var(--line); }
.overlay button.ghost.danger:hover {
  background: transparent;
  border-color: var(--danger);
  color: var(--danger-strong);
}
.muted { color: var(--muted); }

a { color: var(--accent); }

.btn {
  display: inline-block;
  padding: 9px 14px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  text-decoration: none;
  font-size: 13px;
}
.btn:hover { border-color: var(--accent); color: var(--text); }
.error { color: var(--danger); font-size: 12.5px; min-height: 18px; margin-top: 8px; }
/* Div de erro vazia reserva min-height e o gap do cartão: sobra um vão no modal.
   Restrito ao visualizador — nos formulários os 18px evitam o conteúdo pular
   quando o erro aparece. */
.file-card .error:empty { display: none; }

.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.card-head h2 { margin: 0; }
.card.wide { width: min(820px, 94vw); max-height: 86vh; overflow-y: auto; }

.copy-box {
  position: relative;
  background: var(--bg-deep);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 58px 12px 12px;
}
.copy-box pre {
  margin: 0;
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
  font: 12.5px/1.55 ui-monospace, "Cascadia Code", Consolas, monospace;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-all;
  overflow: visible;
}
.overlay .copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  margin: 0;
  padding: 0;
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--muted);
  border-radius: 7px;
  opacity: 0;
  transition: opacity .12s;
}
.copy-box:hover .copy-btn,
.copy-btn:focus-visible,
.copy-btn.copied { opacity: 1; }
.overlay .copy-btn:hover { color: var(--text); border-color: var(--accent); background: var(--panel-2); }
.overlay .copy-btn.copied { color: var(--accent); border-color: var(--accent); }
.overlay h3 {
  margin: 16px 0 8px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--muted);
}

.grid { width: 100%; border-collapse: collapse; font-size: 13px; }
.grid th {
  text-align: left;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .6px;
  color: var(--muted);
  padding: 6px 8px;
  border-bottom: 1px solid var(--line);
}
.grid td { padding: 8px; border-bottom: 1px solid var(--line); }
.grid td.actions { text-align: right; white-space: nowrap; }
.grid td.actions button { padding: 4px 9px; font-size: 12px; margin-left: 6px; }

.inline-form { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; }
.inline-form input, .inline-form select {
  background: var(--bg-deep);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 10px;
  font: inherit;
}
.inline-form input { flex: 1; min-width: 140px; }
.inline-form button { white-space: nowrap; }

.strength {
  height: 6px;
  background: var(--bg-deep);
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 6px;
}
.strength > div { height: 100%; width: 0; background: var(--danger); transition: width .15s, background .15s; }
.strength > div.medium { background: var(--warn); }
.strength > div.strong { background: var(--accent-2); }

.rules { margin: 8px 0 0; padding-left: 18px; color: var(--muted); font-size: 12px; }
.notice {
  margin-top: 12px;
  padding: 10px 12px;
  border: 1px solid var(--accent-border);
  background: var(--warn-soft);
  border-radius: 8px;
  font-size: 12.5px;
  word-break: break-all;
}
.row { display: flex; gap: 8px; margin-top: 14px; }
.row button { flex: 1; }
.small { font-size: 11.5px; }

/* #5: a barra lateral recolhível (☰) e, no celular, a gaveta por cima da conversa. */
.sidebar-toggle {
  flex: 0 0 auto;
  padding: 4px 9px;
  font-size: 16px;
  line-height: 1;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
}
.sidebar-toggle:hover { border-color: var(--accent); }

@media (min-width: 761px) {
  body.sidebar-closed main { grid-template-columns: minmax(0, 1fr); }
  body.sidebar-closed aside { display: none; }
}

@media (max-width: 760px) {
  header { gap: 10px; padding: 0 10px; }
  header .version, header .room-title { display: none; }
  .brand { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

  main { grid-template-columns: minmax(0, 1fr); }

  aside {
    position: fixed;
    top: 54px;
    bottom: 0;
    left: 0;
    width: min(86vw, 320px);
    z-index: 30;
    transform: translateX(-100%);
    transition: transform .18s ease;
    box-shadow: 0 0 34px rgba(0, 0, 0, .6);
  }
  body.sidebar-open aside { transform: none; }
  .resizer { display: none; }

  .sidebar-scrim {
    position: fixed;
    inset: 54px 0 0 0;
    background: rgba(0, 0, 0, .5);
    z-index: 25;
  }
}

/* ---------------------------------------------------------------- login (#9) ----
   Mockup B aceito: no computador, a marca à esquerda (ícone grande, nome, frase e o selo «powered by STSDATA» no
   rodapé) e o formulário à direita, sem moldura. No celular, a marca vira faixa no topo e o selo desce para o fim.
   O painel da marca é o ::before da grade, para o selo poder trocar de lugar sem duplicar o elemento. */
.overlay.login { place-items: stretch; background: var(--bg); overflow-y: auto; }
.login-wrap {
  position: relative;
  min-height: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  grid-template-rows: 1fr auto;
  grid-template-areas: "hero form" "selo form";
}
.login-wrap::before {
  content: "";
  grid-column: 1;
  grid-row: 1 / 3;
  background: radial-gradient(70% 60% at 40% 40%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 70%), var(--panel);
  border-right: 1px solid var(--line);
}
.login-hero, .login-stsdata { position: relative; z-index: 1; grid-column: 1; }
.login-hero {
  grid-area: hero;
  align-self: center;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 40px clamp(24px, 6vw, 72px) 24px;
}
.login-mark { width: 132px; height: 132px; border-radius: 33px; border: 1px solid var(--logo-ring); box-shadow: 0 0 0 3px var(--logo-halo), 0 8px 24px rgba(0, 0, 0, .35); }
.login-wordmark { margin: 0; font-size: 30px; font-weight: 700; letter-spacing: .2px; }
.overlay.login .login-tagline { margin: 0; color: var(--muted); max-width: 34ch; font-size: 14px; line-height: 1.5; }
.login-stsdata { grid-area: selo; justify-self: start; margin: 0 clamp(24px, 6vw, 72px) 28px; }
.overlay.login .login-form {
  grid-area: form;
  align-self: center;
  justify-self: center;
  width: min(360px, 100%);
  background: transparent;
  border: 0;
  padding: 24px;
}
.login-form button[type="submit"] { margin-top: 10px; }

@media (max-width: 720px) {
  .login-wrap {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto auto 1fr auto;
    grid-template-areas: "hero" "form" "." "selo";
  }
  .login-wrap::before {
    grid-row: 1;
    background: radial-gradient(70% 80% at 50% 30%, color-mix(in srgb, var(--accent) 20%, transparent), transparent 70%), var(--panel);
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .login-hero { align-items: center; text-align: center; gap: 10px; padding: 26px 20px 20px; }
  .login-mark { width: 92px; height: 92px; border-radius: 23px; border: 1px solid var(--logo-ring); box-shadow: 0 0 0 2px var(--logo-halo); }
  .login-wordmark { font-size: 24px; }
  .overlay.login .login-tagline { display: none; }
  .overlay.login .login-form { align-self: start; padding: 18px 16px; }
  .login-stsdata { justify-self: center; margin: 14px 16px 22px; }
}