:root {
  color-scheme: dark;
  --bg: #101414;
  --panel: #18201f;
  --panel-2: #202a28;
  --line: #34403d;
  --text: #eef5f0;
  --muted: #aebbb5;
  --accent: #77d9ae;
  --accent-2: #f2c46d;
  --danger: #ff8a8a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, Segoe UI, system-ui, sans-serif;
}

button,
input,
textarea,
select {
  border: 1px solid var(--line);
  background: #111817;
  color: var(--text);
  border-radius: 6px;
  font: inherit;
}

button {
  cursor: pointer;
  background: var(--accent);
  color: #07100d;
  font-weight: 700;
  padding: 10px 14px;
}

button.danger {
  background: var(--danger);
  color: #1d0707;
}

button.toggle {
  background: #24302d;
  color: var(--text);
  border-color: var(--line);
}

button.toggle.on {
  background: var(--accent-2);
  color: #171106;
}

input,
textarea,
select {
  padding: 10px 12px;
  width: 100%;
}

textarea {
  min-height: 92px;
  resize: vertical;
}

.shell {
  min-height: 100vh;
}

.hidden {
  display: none !important;
}

.login {
  width: min(460px, calc(100vw - 32px));
  margin: 18vh auto 0;
}

.login h1,
.topbar h1 {
  margin: 0;
  letter-spacing: 0;
}

.release-badge {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 12px;
  padding: 6px 10px;
  border: 1px solid rgba(119, 217, 174, 0.45);
  border-radius: 999px;
  background: rgba(119, 217, 174, 0.12);
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.login p,
.topbar p {
  color: var(--muted);
}

.login form {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 8px;
}

.login > button {
  width: 100%;
  margin: 10px 0 8px;
}

.hint {
  font-size: 13px;
}

.app {
  padding: 18px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-bottom: 16px;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.controls select {
  width: auto;
  max-width: 260px;
}

.grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 14px;
}

.panel {
  min-height: 320px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}

.panel h2 {
  margin: 0 0 12px;
  font-size: 18px;
}

.chat {
  min-height: 520px;
  display: flex;
  flex-direction: column;
}

.messages {
  flex: 1;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-right: 4px;
}

.msg {
  max-width: 88%;
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--panel-2);
  white-space: pre-wrap;
}

.msg.user {
  align-self: flex-end;
  background: #23362f;
}

.msg.error {
  color: var(--danger);
}

.composer {
  display: grid;
  grid-template-columns: auto 1fr auto auto auto;
  gap: 8px;
  margin-top: 12px;
}

.composer button,
.file-button {
  min-width: 42px;
  text-align: center;
}

.file-button {
  display: grid;
  place-items: center;
  cursor: pointer;
  background: var(--accent-2);
  color: #171106;
  font-weight: 800;
  border-radius: 6px;
}

.file-button input {
  display: none;
}

.upload-row {
  color: var(--accent-2);
  font-size: 13px;
  min-height: 18px;
}

.task-form,
.file-tools {
  display: grid;
  gap: 8px;
}

.file-tools {
  grid-template-columns: 1fr auto auto;
}

.tasks,
.files {
  margin-top: 12px;
  display: grid;
  gap: 8px;
}

.task,
.file-entry {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 9px;
  font-size: 14px;
}

.task small,
.file-entry small {
  color: var(--muted);
}

pre,
.file-content {
  width: 100%;
  min-height: 220px;
  overflow: auto;
  background: #111817;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px;
  color: var(--text);
}

.file-content {
  margin-top: 10px;
  font-family: Consolas, monospace;
}

@media (max-width: 980px) {
  .topbar,
  .grid {
    display: block;
  }

  .panel {
    margin-bottom: 14px;
  }

  .controls {
    margin-top: 10px;
  }

  .login form {
    grid-template-columns: 1fr;
  }
}