app/static/styles.css

/* Planificador VFR — self-contained styles (no CDN, no webfonts).
   Light and dark are both first-class: a Space inherits whatever the visitor's
   OS is set to, and a briefing screen that is unreadable in one of them is
   unreadable half the time. */

:root {
  color-scheme: light dark;

  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #f0f2f5;
  --border: #d9dee5;
  --text: #16191d;
  --text-dim: #5b636e;
  --accent: #1d63b8;
  --accent-text: #ffffff;
  --ok: #1a7f52;
  --warn: #9a6413;
  --err: #b3261e;
  --tool: #6b3fa0;
  --radius: 10px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --surface: #1c1f24;
    --surface-2: #23272e;
    --border: #333941;
    --text: #e8eaed;
    --text-dim: #9aa3ae;
    --accent: #5b9dff;
    --accent-text: #0b1220;
    --ok: #56c78d;
    --warn: #e0aa4a;
    --err: #ff8a80;
    --tool: #bda0f0;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
  height: 100vh;
  font-size: 13px;
  line-height: 1.45;
}

/* ---------- Top bar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 18px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  font-size: 22px;
  background: var(--accent);
  color: var(--accent-text);
  width: 38px; height: 38px;
  border-radius: 9px;
  display: grid; place-items: center;
}
.brand h1 { font-size: 16px; margin: 0; font-weight: 650; }
.brand-sub { margin: 0; font-size: 12px; color: var(--text-dim); }
.brand-sub code { font-family: var(--mono); font-size: 11px; }

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

.pill {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-dim);
  font-size: 12px;
  font-family: var(--sans);
  cursor: pointer;
}
.pill .dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; flex: none; }
.pill-ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, var(--border)); }
.pill-warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 40%, var(--border)); }
.pill-err { color: var(--err); border-color: color-mix(in srgb, var(--err) 40%, var(--border)); }
.pill-muted { color: var(--text-dim); }

.btn {
  font-family: var(--sans);
  font-size: 13px;
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  cursor: pointer;
}
.btn:hover { border-color: var(--accent); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); font-weight: 600; }
.btn-ghost { background: transparent; }
.btn-send { min-width: 140px; }

/* ---------- Two-column layout: chat on the left, form + progress on the right ---------- */
.app-body {
  flex: 1;
  display: flex;
  min-height: 0;
}
.chat-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* ---------- Transcript ---------- */
.transcript {
  flex: 1;
  overflow-y: auto;
  padding: 18px 18px 8px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.welcome {
  max-width: 640px; margin: 6vh auto 0; text-align: center; color: var(--text-dim);
}
.welcome h2 { color: var(--text); font-size: 17px; margin: 0 0 8px; }
.welcome p { margin: 6px 0; }
.welcome-warn {
  margin-top: 16px; font-size: 12px;
  border: 1px solid var(--border); border-left: 3px solid var(--warn);
  background: var(--surface); border-radius: var(--radius);
  padding: 9px 12px; text-align: left;
}

.msg { max-width: 780px; width: 100%; margin: 0 auto; }

.msg-user .bubble {
  background: var(--accent); color: var(--accent-text);
  border-radius: var(--radius) var(--radius) 2px var(--radius);
  padding: 9px 13px;
  margin-left: auto;
  max-width: 78%;
  white-space: pre-wrap;
}
.msg-user { display: flex; }

.msg-agent .bubble {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 15px;
}

/* Activity trace: reasoning + tool calls, collapsed by default so the answer
   stays the thing you read first. */
.trace {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
  margin-bottom: 10px;
}
.trace-head {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 14px;
  background: var(--surface-2);
  font-size: 13px; color: var(--text-dim);
  border-bottom: 1px solid transparent;
}
.trace[open] .trace-head { border-bottom-color: var(--border); }
.trace-head::-webkit-details-marker { display: none; }
.trace-head { cursor: pointer; list-style: none; }
.trace-head .spinner {
  width: 12px; height: 12px; border-radius: 50%;
  border: 2px solid var(--border); border-top-color: var(--accent);
  animation: spin .8s linear infinite; flex: none;
}
@keyframes spin { to { transform: rotate(360deg); } }
.trace-body { padding: 6px 14px 12px; display: flex; flex-direction: column; gap: 8px; }

.step {
  border-left: 2px solid var(--border);
  padding: 4px 0 4px 12px;
  font-size: 13px;
}
.step-label {
  font-size: 11px; text-transform: uppercase; letter-spacing: .06em;
  color: var(--text-dim); margin-bottom: 3px; display: flex; gap: 8px; align-items: center;
}
.step-reasoning { border-left-color: var(--accent); }
.step-reasoning .step-body { color: var(--text-dim); font-style: italic; white-space: pre-wrap; }
.step-thinking { border-left-color: var(--accent); }
.step-thinking .step-body { white-space: pre-wrap; }
.step-tool { border-left-color: var(--tool); }
.step-tool .tool-name { font-family: var(--mono); color: var(--tool); font-weight: 600; font-size: 12px; }
.step-status { border-left-color: var(--border); color: var(--text-dim); }
.step-err { border-left-color: var(--err); }
.step-err .step-body { color: var(--err); white-space: pre-wrap; }

pre.code {
  font-family: var(--mono); font-size: 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 9px 11px;
  overflow-x: auto;
  margin: 5px 0 0;
  max-height: 320px;
  white-space: pre-wrap;
  word-break: break-word;
}

.error-box {
  border: 1px solid color-mix(in srgb, var(--err) 45%, var(--border));
  border-left: 3px solid var(--err);
  background: var(--surface);
  border-radius: var(--radius);
  padding: 12px 15px;
  color: var(--err);
  white-space: pre-wrap;
  font-size: 14px;
}

/* Rendered answer */
.bubble h2, .bubble h3 { font-size: 15px; margin: 14px 0 6px; }
.bubble p { margin: 8px 0; }
.bubble ul, .bubble ol { margin: 8px 0; padding-left: 22px; }
.bubble li { margin: 3px 0; }
.bubble code { font-family: var(--mono); font-size: 13px; background: var(--surface-2); padding: 1px 5px; border-radius: 4px; }
.bubble table { border-collapse: collapse; margin: 10px 0; font-size: 13px; width: 100%; }
.bubble th, .bubble td { border: 1px solid var(--border); padding: 5px 9px; text-align: left; }
.bubble th { background: var(--surface-2); }

/* ---------- Composer (free text — always visible, bottom of the chat column) ---------- */
.composer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding: 8px 14px 8px;
}
.free-form { display: flex; align-items: flex-end; gap: 8px; }
.free-form .btn-send { min-width: auto; padding: 7px 16px; }

.field { display: flex; flex-direction: column; gap: 3px; font-size: 11px; color: var(--text-dim); }
.field em { color: var(--err); font-style: normal; }
.field em.hint { color: var(--text-dim); font-weight: 400; }
.field input, .field textarea, #free-text {
  font-family: var(--sans); font-size: 13px;
  padding: 6px 9px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--bg);
  color: var(--text);
  width: 100%;
}
.field input:focus, #free-text:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

#free-text {
  font-family: var(--sans); resize: none; min-height: 36px; flex: 1;
}

.composer-hint { margin: 4px 0 0; font-size: 11px; color: var(--text-dim); }

/* ---------- Sidebar: flight-data form + live progress ---------- */
.sidebar {
  width: 300px;
  flex: none;
  border-left: 1px solid var(--border);
  background: var(--surface);
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.sidebar-section h3 {
  margin: 0 0 9px; font-size: 11px; font-weight: 650;
  text-transform: uppercase; letter-spacing: .05em; color: var(--text-dim);
}
.flight-form { display: flex; flex-direction: column; gap: 8px; }
.flight-form .composer-hint { margin: 2px 0 4px; }
.flight-form .btn-send { width: 100%; margin-top: 2px; }

.progress-panel { font-size: 12px; }
.progress-empty { margin: 0; color: var(--text-dim); }
.checklist { list-style: none; margin: 0 0 10px; padding: 0; display: flex; flex-direction: column; gap: 5px; }
.checklist li { display: flex; align-items: center; gap: 7px; color: var(--text-dim); }
.checklist li.done { color: var(--text); }
.checklist .check {
  width: 15px; height: 15px; border-radius: 50%; flex: none;
  display: grid; place-items: center; font-size: 10px; line-height: 1;
  border: 1px solid var(--border); color: var(--text-dim);
}
.checklist li.done .check { background: var(--ok); border-color: var(--ok); color: var(--accent-text); }
.progress-live {
  margin: 0; padding: 8px 10px; border-radius: 7px;
  background: var(--surface-2); border: 1px solid var(--border);
  color: var(--text-dim); display: flex; align-items: center; gap: 8px;
}
.progress-live.busy::before {
  content: ""; width: 10px; height: 10px; border-radius: 50%; flex: none;
  border: 2px solid var(--border); border-top-color: var(--accent);
  animation: spin .8s linear infinite;
}
.progress-live.ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, var(--border)); }
.progress-live.err { color: var(--err); border-color: color-mix(in srgb, var(--err) 40%, var(--border)); }

/* ---------- Settings dialog ---------- */
.dialog {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0;
  background: var(--surface);
  color: var(--text);
  max-width: 620px;
  width: calc(100% - 32px);
}
.dialog::backdrop { background: rgba(0,0,0,.5); }
.dialog-inner { padding: 22px 24px 20px; display: flex; flex-direction: column; gap: 12px; }
.dialog-inner h2 { margin: 0; font-size: 17px; }
.dialog-inner h3 { margin: 0; font-size: 14px; }
.dialog-inner hr { border: none; border-top: 1px solid var(--border); margin: 4px 0; width: 100%; }
.dialog-note { margin: 0; font-size: 12px; color: var(--text-dim); }
.dialog-note code { font-family: var(--mono); font-size: 11px; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 9px; margin-top: 6px; }
.dialog-actions-inline { justify-content: space-between; align-items: center; margin-top: 0; }
.settings-msg { font-size: 12px; color: var(--text-dim); text-align: right; }
.settings-msg.ok { color: var(--ok); }
.settings-msg.err { color: var(--err); }

/* Used only inside the settings dialog now (endpoint name / namespace) —
   the flight form is a single column in the sidebar. */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

@media (max-width: 860px) {
  .app-body { flex-direction: column; }
  .sidebar {
    width: auto; border-left: none; border-top: 1px solid var(--border);
    flex-direction: row; flex-wrap: wrap; max-height: 40vh;
  }
  .sidebar-section { flex: 1 1 220px; }
  .brand-sub { display: none; }
  .transcript { padding: 14px 12px 4px; }
  .composer { padding: 8px 12px 8px; }
}