* { box-sizing: border-box; margin: 0; }

:root {
  --bg: #f4f6fa;
  --panel: #ffffff;
  --panel-2: #f0f3f8;
  --border: #dfe5ee;
  --text: #1b2536;
  --muted: #5c6778;
  --accent: #3b7cf5;
  --accent-2: #6f52e8;
  --green: #1f8f5c;
  --red: #d64540;
  --shadow: rgba(23, 43, 77, .14);
  --glow-1: rgba(59, 124, 245, .10);
  --glow-2: rgba(111, 82, 232, .10);
}

body {
  font-family: ui-sans-serif, system-ui, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  overflow: hidden;
}

.hidden { display: none !important; }

.logo-mark {
  width: 56px; height: 56px; border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 30px; color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 8px 30px rgba(79, 140, 255, .35);
}
.logo-mark.small { width: 30px; height: 30px; font-size: 16px; border-radius: 9px; box-shadow: none; }

/* ---------- Login ---------- */

#login-view {
  height: 100vh; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 24px;
  background:
    radial-gradient(600px 400px at 20% 20%, var(--glow-1), transparent),
    radial-gradient(600px 400px at 80% 80%, var(--glow-2), transparent),
    var(--bg);
}

.login-card {
  display: flex; flex-direction: column; align-items: center; gap: 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 44px 52px;
  box-shadow: 0 20px 60px var(--shadow);
}
.login-card h1 { font-size: 26px; letter-spacing: .3px; }
.tagline { color: var(--muted); text-align: center; font-size: 14px; line-height: 1.5; margin-bottom: 8px; }
.login-error { color: #ff8f88; font-size: 13px; max-width: 320px; text-align: center; }
.login-foot { color: var(--muted); font-size: 12px; }

/* ---------- Top bar ---------- */

#app-view { height: 100vh; display: flex; flex-direction: column; }

#topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 15px; }
.top-actions { display: flex; align-items: center; gap: 12px; }
#username { font-size: 13px; color: var(--muted); }
.avatar { width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--border); }

.ghost-btn {
  background: transparent; color: var(--muted);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 6px 12px; font-size: 12px; cursor: pointer;
}
.ghost-btn:hover { color: var(--text); border-color: var(--accent); }

/* ---------- Layout ---------- */

main {
  flex: 1; min-height: 0;
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: 14px;
  padding: 14px;
}

#chat {
  display: flex; flex-direction: column; min-height: 0;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

#messages { flex: 1; overflow-y: auto; padding: 14px; display: flex; flex-direction: column; gap: 8px; }
#messages::-webkit-scrollbar { width: 8px; }
#messages::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.msg { padding: 9px 13px; border-radius: 10px; font-size: 13px; line-height: 1.5; white-space: pre-wrap; word-break: break-word; }
.msg.welcome { background: var(--panel-2); border: 1px solid var(--border); color: var(--muted); }
.msg.welcome strong { color: var(--text); }
.msg.user   { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; align-self: flex-end; max-width: 92%; }
.msg.status { color: var(--muted); font-style: italic; font-size: 12px; padding: 2px 13px; }
.msg.log    { color: #aeb9cc; background: var(--panel-2); border-left: 3px solid var(--border); font-size: 12px; }
.msg.result { background: rgba(31,143,92,.08); border: 1px solid rgba(31,143,92,.35); }
.msg.error  { background: rgba(214,69,64,.07); border: 1px solid rgba(214,69,64,.35); }
.msg.thought {
  background: var(--panel-2); border: 1px dashed var(--border);
  color: var(--muted); font-size: 12px; font-style: italic;
}
.msg.action {
  color: var(--accent); background: rgba(59,124,245,.06);
  border-left: 3px solid var(--accent); font-size: 12px;
  font-family: ui-monospace, Consolas, monospace;
}
.usage-line { display: block; margin-top: 6px; font-size: 11px; color: var(--muted); font-style: normal; }

#suggestions { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 14px 10px; }
.chip {
  font-size: 11px; padding: 6px 11px; border-radius: 999px;
  border: 1px solid var(--border); background: transparent; color: var(--muted); cursor: pointer;
  transition: all .15s;
}
.chip:hover { border-color: var(--accent); color: var(--text); }

#mode-row {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px 0; border-top: 1px solid var(--border); background: var(--panel-2);
}
#mode-toggle {
  display: flex; background: var(--bg);
  border: 1px solid var(--border); border-radius: 999px; padding: 3px;
}
.mode-btn {
  border: none; background: transparent; color: var(--muted);
  font-size: 12px; font-weight: 600; padding: 6px 14px; border-radius: 999px; cursor: pointer;
}
.mode-btn.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff;
}
#mode-help {
  width: 24px; height: 24px; border-radius: 50%;
  border: 1px solid var(--border); background: transparent; color: var(--muted);
  font-size: 12px; font-weight: 700; cursor: pointer;
}
#mode-help:hover { color: var(--accent); border-color: var(--accent); }

.help-body h3 { font-size: 14px; margin: 14px 0 6px; }
.help-body p { font-size: 13px; color: var(--muted); line-height: 1.55; }
.help-body strong { color: var(--text); }
.badge {
  font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: .5px;
  color: var(--green); border: 1px solid var(--green); border-radius: 999px;
  padding: 2px 8px; margin-left: 6px; vertical-align: middle;
}

#task-form { display: flex; gap: 8px; padding: 12px 14px; background: var(--panel-2); }
#task-input {
  flex: 1; padding: 11px 14px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--bg); color: var(--text); font-size: 13px;
}
#task-input:focus { outline: none; border-color: var(--accent); }
#run-btn {
  padding: 11px 20px; border: none; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; font-weight: 600; cursor: pointer; font-size: 13px;
}
#run-btn:disabled { background: var(--border); cursor: not-allowed; }
#stop-btn {
  padding: 11px 16px; border: 1px solid var(--red); border-radius: 10px;
  background: transparent; color: var(--red); font-weight: 600; cursor: pointer; font-size: 13px;
}
#stop-btn:hover { background: rgba(214,69,64,.08); }

#cost-line {
  padding: 6px 16px 10px; font-size: 11px; color: var(--muted);
  background: var(--panel-2); border-top: 1px solid var(--border);
}

.control-toggle { margin-left: auto; }
.control-toggle.active {
  background: var(--accent); color: #fff; border-color: var(--accent);
}
#screen.controlled { outline: 3px solid var(--accent); outline-offset: -3px; cursor: crosshair; }

/* ---------- Viewer ---------- */

#viewer { display: flex; align-items: flex-start; justify-content: center; min-width: 0; }
#viewer-frame {
  width: 100%;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}
#viewer-bar { display: flex; align-items: center; gap: 6px; padding: 11px 15px; border-bottom: 1px solid var(--border); }
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.red { background: #e5534b; } .dot.yellow { background: #d4a72c; } .dot.green { background: #2ea86e; }
#viewer-status { margin-left: 10px; font-size: 12px; color: var(--muted); }
#screen { display: block; width: 100%; height: auto; background: #fff; }

/* ---------- Members modal ---------- */

.modal-backdrop {
  position: fixed; inset: 0; z-index: 50;
  background: rgba(15, 23, 42, .55);
  display: flex; align-items: center; justify-content: center;
}
.modal {
  width: 420px; max-width: calc(100vw - 32px);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 24px 80px var(--shadow);
}
.modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 4px; }
.modal-head h2 { font-size: 17px; }
.modal-hint { color: var(--muted); font-size: 12px; margin-bottom: 14px; }
#member-add-form { display: flex; gap: 8px; margin-bottom: 12px; }
#member-email {
  flex: 1; padding: 9px 12px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--bg); color: var(--text); font-size: 13px;
}
#member-email:focus { outline: none; border-color: var(--accent); }
#member-add-form button {
  padding: 9px 16px; border: none; border-radius: 8px;
  background: var(--accent); color: #fff; font-weight: 600; cursor: pointer;
}
#member-list { list-style: none; max-height: 260px; overflow-y: auto; display: flex; flex-direction: column; gap: 6px; }
#member-list li {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 12px; border-radius: 8px;
  background: var(--panel-2); border: 1px solid var(--border); font-size: 13px;
}
#member-list .role { font-size: 10px; color: var(--muted); text-transform: uppercase; letter-spacing: .6px; margin-left: 8px; }
#member-list button { background: none; border: none; color: var(--muted); cursor: pointer; font-size: 14px; }
#member-list button:hover { color: var(--red); }

@media (max-width: 900px) {
  main { grid-template-columns: 1fr; grid-template-rows: 1fr auto; overflow-y: auto; }
  body { overflow: auto; }
}