/* ============================================================
   IA Local - folha de estilos
   Tema claro por padrao; [data-theme="dark"] no <html> inverte.
   ============================================================ */

:root {
  --bg:            #ffffff;
  --bg-soft:       #f7f7f8;
  --bg-side:       #f9f9f9;
  --bg-elev:       #ffffff;
  --bg-hover:      #ececef;
  --bg-code:       #0f1115;
  --border:        #e3e3e6;
  --border-strong: #d0d0d5;
  --text:          #1f2023;
  --text-soft:     #6b6c72;
  --text-faint:    #9a9ba1;
  --accent:        #10a37f;
  --accent-hover:  #0d8c6d;
  --accent-soft:   #e7f6f1;
  --danger:        #d9432f;
  --shadow:        0 1px 2px rgba(0,0,0,.05), 0 8px 24px rgba(0,0,0,.06);
  --radius:        12px;
  --sidebar-w:     272px;
  --maxw:          768px;
}

[data-theme="dark"] {
  --bg:            #1c1c1f;
  --bg-soft:       #232427;
  --bg-side:       #141416;
  --bg-elev:       #26272b;
  --bg-hover:      #313136;
  --bg-code:       #0c0d10;
  --border:        #34353a;
  --border-strong: #45464c;
  --text:          #ececf1;
  --text-soft:     #a8a9b0;
  --text-faint:    #75767d;
  --accent:        #19c39c;
  --accent-hover:  #14ad8a;
  --accent-soft:   #163730;
  --danger:        #ff6b57;
  --shadow:        0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.35);
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  overflow: hidden;
}

body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

.ico {
  width: 18px; height: 18px;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

button { font: inherit; color: inherit; cursor: pointer; }

[hidden] { display: none !important; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 8px;
  border: 3px solid transparent;
  background-clip: content-box;
}
::-webkit-scrollbar-thumb:hover { background: var(--text-faint); background-clip: content-box; }
::-webkit-scrollbar-track { background: transparent; }

/* ================= LAYOUT ================= */

.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  height: 100dvh;
}

/* ================= SIDEBAR ================= */

.sidebar {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  background: var(--bg-side);
  border-right: 1px solid var(--border);
}

.sidebar-top {
  display: flex;
  gap: 8px;
  padding: 12px;
}

.btn-new {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  background: var(--bg-elev);
  font-weight: 550;
  transition: background .15s, border-color .15s;
}
.btn-new:hover { background: var(--bg-hover); border-color: var(--text-faint); }

.icon-btn {
  display: grid;
  place-items: center;
  width: 36px; height: 36px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--text-soft);
  transition: background .15s, color .15s;
}
.icon-btn:hover { background: var(--bg-hover); color: var(--text); }

.search-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 12px 10px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--bg);
  color: var(--text-faint);
}
.search-wrap:focus-within { border-color: var(--accent); }
.search-wrap input {
  flex: 1;
  min-width: 0;
  padding: 8px 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 14px;
}

.conv-list {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 0 8px 8px;
}

.conv-group {
  padding: 14px 8px 6px;
  color: var(--text-faint);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.conv {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 9px 8px 9px 10px;
  margin-bottom: 2px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  text-align: left;
  color: var(--text);
  transition: background .12s;
}
.conv:hover { background: var(--bg-hover); }
.conv.active { background: var(--bg-hover); font-weight: 550; }

.conv-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  font-size: 14px;
}

.conv-actions {
  display: flex;
  gap: 2px;
  opacity: 0;
  transition: opacity .12s;
}
.conv:hover .conv-actions,
.conv.active .conv-actions { opacity: 1; }

.mini-btn {
  display: grid;
  place-items: center;
  width: 26px; height: 26px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--text-soft);
}
.mini-btn:hover { background: var(--border); color: var(--text); }
.mini-btn.danger:hover { color: var(--danger); }
.mini-btn .ico { width: 15px; height: 15px; }

.empty-list {
  padding: 24px 12px;
  color: var(--text-faint);
  font-size: 13px;
  text-align: center;
}

.sidebar-bottom {
  padding: 10px 12px 14px;
  border-top: 1px solid var(--border);
}

.status-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 6px 10px;
  color: var(--text-soft);
  font-size: 12.5px;
}
.dot {
  width: 8px; height: 8px;
  flex: none;
  border-radius: 50%;
  background: var(--text-faint);
}
.dot.on  { background: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.dot.off { background: var(--danger); }

.ghost-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 10px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--text);
  font-size: 14px;
  transition: background .12s;
}
.ghost-btn:hover { background: var(--bg-hover); }
.ghost-btn.danger { color: var(--danger); }

.scrim { display: none; }

/* ================= MAIN ================= */

.main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;   /* permite que .messages role em vez de esticar o layout */
  background: var(--bg);
}

.topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(8px);
}

.title-block {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}
.title-block h1 {
  margin: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  font-size: 15px;
  font-weight: 600;
}

.model-pill {
  flex: none;
  padding: 3px 9px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--text-soft);
  font-size: 11.5px;
  font-weight: 600;
}

.topbar-actions { display: flex; gap: 2px; }

/* ================= MENSAGENS ================= */

.messages {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  scroll-behavior: smooth;
  padding: 8px 0 12px;
}

.msg {
  padding: 18px 20px;
}
.msg-inner {
  display: flex;
  gap: 16px;
  max-width: var(--maxw);
  margin: 0 auto;
}

.msg.assistant { background: var(--bg-soft); }

.avatar {
  display: grid;
  place-items: center;
  width: 30px; height: 30px;
  flex: none;
  margin-top: 1px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
}
.msg.user .avatar      { background: #5b6270; }
.msg.assistant .avatar { background: var(--accent); }

.msg-body { flex: 1; min-width: 0; }

.msg-role {
  margin-bottom: 4px;
  font-size: 13px;
  font-weight: 650;
}

.msg-content { word-wrap: break-word; overflow-wrap: anywhere; }
.msg-content > *:first-child { margin-top: 0; }
.msg-content > *:last-child  { margin-bottom: 0; }
.msg-content p { margin: 0 0 12px; }
.msg-content h1, .msg-content h2, .msg-content h3, .msg-content h4 {
  margin: 20px 0 10px;
  line-height: 1.3;
}
.msg-content h1 { font-size: 1.4em; }
.msg-content h2 { font-size: 1.25em; }
.msg-content h3 { font-size: 1.1em; }
.msg-content h4 { font-size: 1em; }
.msg-content ul, .msg-content ol { margin: 0 0 12px; padding-left: 24px; }
.msg-content li { margin: 4px 0; }
.msg-content li > ul, .msg-content li > ol { margin: 4px 0; }
.msg-content a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.msg-content blockquote {
  margin: 0 0 12px;
  padding: 2px 0 2px 14px;
  border-left: 3px solid var(--border-strong);
  color: var(--text-soft);
}
.msg-content hr { margin: 18px 0; border: 0; border-top: 1px solid var(--border); }

.msg-content code.inline {
  padding: 2px 5px;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--bg-hover);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: .875em;
}

.table-wrap { overflow-x: auto; margin: 0 0 12px; }
.msg-content table { border-collapse: collapse; font-size: 14px; }
.msg-content th, .msg-content td {
  padding: 7px 12px;
  border: 1px solid var(--border);
  text-align: left;
}
.msg-content th { background: var(--bg-hover); font-weight: 650; }

/* blocos de codigo */
.code-block {
  margin: 0 0 14px;
  border-radius: 10px;
  overflow: hidden;
  background: var(--bg-code);
  border: 1px solid var(--border);
}
.code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 8px 6px 14px;
  background: rgba(255,255,255,.05);
  color: #9aa0aa;
  font-size: 12px;
}
.code-lang { font-family: Consolas, monospace; letter-spacing: .04em; }
.copy-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: #9aa0aa;
  font-size: 12px;
}
.copy-btn:hover { background: rgba(255,255,255,.1); color: #fff; }
.copy-btn .ico { width: 14px; height: 14px; }
.code-block pre {
  margin: 0;
  padding: 14px;
  overflow-x: auto;
}
.code-block code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 13.5px;
  line-height: 1.55;
  color: #e6e6e6;
  white-space: pre;
}

/* acoes da mensagem */
.msg-tools {
  display: flex;
  gap: 4px;
  margin-top: 8px;
  opacity: 0;
  transition: opacity .15s;
}
.msg:hover .msg-tools { opacity: 1; }
.tool-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--text-faint);
  font-size: 12.5px;
}
.tool-btn:hover { background: var(--bg-hover); color: var(--text); }
.tool-btn .ico { width: 14px; height: 14px; }

.msg-stats {
  margin-top: 6px;
  color: var(--text-faint);
  font-size: 12px;
}

.msg-error {
  margin-top: 4px;
  padding: 10px 12px;
  border: 1px solid color-mix(in srgb, var(--danger) 40%, transparent);
  border-radius: 9px;
  background: color-mix(in srgb, var(--danger) 10%, transparent);
  color: var(--danger);
  font-size: 14px;
}

/* cursor de digitacao */
.caret {
  display: inline-block;
  width: 7px; height: 15px;
  margin-left: 2px;
  border-radius: 1px;
  background: var(--text);
  vertical-align: -2px;
  animation: blink 1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ================= TELA INICIAL ================= */

.welcome {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 8vh 20px 20px;
  text-align: center;
}
.welcome-logo { font-size: 44px; line-height: 1; }
.welcome h2 { margin: 16px 0 4px; font-size: 26px; font-weight: 650; }
.welcome-sub { margin: 0 0 32px; color: var(--text-soft); font-size: 14px; }

.suggestions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  text-align: left;
}
.sugg {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 13px 15px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--bg);
  transition: background .15s, border-color .15s, transform .12s;
}
.sugg:hover { background: var(--bg-soft); border-color: var(--border-strong); transform: translateY(-1px); }
.sugg b    { font-size: 14px; font-weight: 600; }
.sugg span { color: var(--text-soft); font-size: 13px; }

/* ================= COMPOSER ================= */

.composer-area {
  position: relative;
  padding: 0 20px 14px;
  background: var(--bg);
}

.scroll-bottom-wrap {
  position: absolute;
  top: -46px; left: 0; right: 0;
  display: flex;
  justify-content: center;
  pointer-events: none;
}
.scroll-bottom {
  display: none;
  place-items: center;
  width: 34px; height: 34px;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  background: var(--bg-elev);
  color: var(--text-soft);
  box-shadow: var(--shadow);
  pointer-events: auto;
}
.scroll-bottom.show { display: grid; }
.scroll-bottom:hover { color: var(--text); }

.composer {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 8px 8px 8px 16px;
  border: 1px solid var(--border-strong);
  border-radius: 24px;
  background: var(--bg-elev);
  box-shadow: var(--shadow);
  transition: border-color .15s;
}
.composer:focus-within { border-color: var(--accent); }

.composer textarea {
  flex: 1;
  max-height: 220px;
  padding: 9px 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  line-height: 1.5;
  resize: none;
  overflow-y: auto;
}
.composer textarea::placeholder { color: var(--text-faint); }

.send-btn {
  display: grid;
  place-items: center;
  width: 36px; height: 36px;
  flex: none;
  border: 0;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  transition: background .15s, opacity .15s;
}
.send-btn:hover:not(:disabled) { background: var(--accent-hover); }
.send-btn:disabled { opacity: .35; cursor: default; }
.send-btn.stop { background: var(--text); color: var(--bg); }

.hint {
  max-width: var(--maxw);
  margin: 8px auto 0;
  color: var(--text-faint);
  font-size: 11.5px;
  text-align: center;
}

/* ================= MODAL ================= */

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(0,0,0,.45);
  backdrop-filter: blur(2px);
}
.modal-backdrop[hidden] { display: none; }

.modal {
  display: flex;
  flex-direction: column;
  width: min(560px, 100%);
  max-height: 88dvh;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg-elev);
  box-shadow: 0 20px 60px rgba(0,0,0,.35);
  overflow: hidden;
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 12px 14px 20px;
  border-bottom: 1px solid var(--border);
}
.modal-head h3 { margin: 0; font-size: 16px; }

.modal-body {
  flex: 1;
  overflow-y: auto;
  padding: 18px 20px;
}

.field { display: block; margin-bottom: 18px; }
.field-label {
  display: block;
  margin-bottom: 6px;
  font-size: 13.5px;
  font-weight: 600;
}
.field small { display: block; margin-top: 5px; color: var(--text-faint); font-size: 12px; }

.field select,
.field input[type="number"],
.field textarea {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--border-strong);
  border-radius: 9px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
  font-size: 14px;
  outline: 0;
}
.field textarea { resize: vertical; line-height: 1.5; }
.field select:focus,
.field input:focus,
.field textarea:focus { border-color: var(--accent); }
.field input[type="range"] { width: 100%; accent-color: var(--accent); }

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.server-box {
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-soft);
  font-size: 13px;
}
.server-box div { display: flex; justify-content: space-between; gap: 12px; padding: 3px 0; }
.server-box span { color: var(--text-soft); }
.server-box b { font-family: Consolas, monospace; font-weight: 500; }

.modal-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
}
.modal-foot .ghost-btn { width: auto; font-size: 13.5px; }

.primary-btn {
  padding: 9px 20px;
  border: 0;
  border-radius: 9px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}
.primary-btn:hover { background: var(--accent-hover); }

/* ================= TOAST ================= */

.toast {
  position: fixed;
  bottom: 26px; left: 50%;
  z-index: 90;
  transform: translateX(-50%);
  padding: 10px 18px;
  border-radius: 10px;
  background: var(--text);
  color: var(--bg);
  font-size: 13.5px;
  box-shadow: var(--shadow);
  animation: rise .2s ease;
}
.toast[hidden] { display: none; }
@keyframes rise { from { opacity: 0; transform: translate(-50%, 8px); } }

/* ================= RESPONSIVO ================= */

.only-mobile { display: none; }

@media (max-width: 860px) {
  .app { grid-template-columns: 1fr; }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 40;
    width: var(--sidebar-w);
    transform: translateX(-100%);
    transition: transform .22s ease;
  }
  .sidebar.open { transform: none; }

  .scrim {
    position: fixed;
    inset: 0;
    z-index: 35;
    display: none;
    background: rgba(0,0,0,.45);
  }
  .scrim.show { display: block; }

  .only-mobile { display: grid; }
  .suggestions { grid-template-columns: 1fr; }
  .field-row   { grid-template-columns: 1fr; }
  .msg { padding: 16px 14px; }
  .msg-inner { gap: 12px; }
  .composer-area { padding: 0 12px 10px; }
}
