:root {
  --bg: #f7f7f5;
  --panel: #ffffff;
  --border: #dcdad4;
  --text: #2a2a26;
  --muted: #6b6b63;
  --accent: #b5651d;
  --accent-dark: #8f4f16;
  --outcome-bg: #fdf2e3;
  --output-bg: #f6f6f2;
  --activity-bg: #fbfbf9;
}

* { box-sizing: border-box; }

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

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

.app-header h1 { font-size: 18px; margin: 0; }
.app-header-actions { display: flex; gap: 8px; }

.btn {
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel);
  cursor: pointer;
  font-size: 14px;
}
.btn:hover { background: #f0efe9; }
.btn-ghost { background: transparent; }
.btn-primary { background: var(--accent); color: white; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-dark); }

.hidden { display: none !important; }

.sector-picker {
  max-width: 640px;
  margin: 60px auto;
  padding: 0 20px;
  text-align: center;
}
.sector-picker h2 { margin-bottom: 4px; }
.hint { color: var(--muted); font-size: 13px; }

.sector-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 20px;
}
.sector-buttons button {
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  cursor: pointer;
  font-size: 14px;
}
.sector-buttons button:hover { border-color: var(--accent); color: var(--accent-dark); }

.app-main {
  display: grid;
  grid-template-columns: minmax(340px, 1fr) minmax(420px, 1.4fr);
  gap: 16px;
  padding: 16px;
  height: calc(100vh - 57px);
}

.chat-panel, .preview-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-log {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.chat-msg { max-width: 85%; padding: 8px 12px; border-radius: 10px; line-height: 1.4; font-size: 14px; white-space: pre-wrap; }
.chat-msg.user { align-self: flex-end; background: var(--accent); color: white; }
.chat-msg.assistant { align-self: flex-start; background: var(--output-bg); }
.chat-msg.system-note { align-self: center; color: var(--muted); font-size: 12px; font-style: italic; background: none; }
.chat-msg.error { align-self: stretch; background: #fbe4e4; color: #7a1f1f; }

.chat-form {
  display: flex;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid var(--border);
}
.chat-form textarea {
  flex: 1;
  resize: none;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: inherit;
  font-size: 14px;
}

.preview-panel { padding: 12px; gap: 10px; }
.export-toolbar { display: flex; gap: 8px; }
.export-warnings {
  background: #fff6e0;
  border: 1px solid #e7cf8f;
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 13px;
}
.logframe-preview { flex: 1; overflow: auto; }

.lf-empty { color: var(--muted); font-size: 14px; }
.lf-meta { margin-bottom: 10px; }
.lf-sector-badge {
  display: inline-block;
  background: var(--outcome-bg);
  color: var(--accent-dark);
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.lf-rationale { font-size: 13px; color: var(--muted); margin-top: 6px; }

.lf-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.lf-table th, .lf-table td {
  border: 1px solid var(--border);
  padding: 6px 8px;
  text-align: left;
  vertical-align: top;
}
.lf-table th { background: #efeee8; position: sticky; top: 0; }
.lf-row-outcome { background: var(--outcome-bg); font-weight: 600; }
.lf-row-output { background: var(--output-bg); }
.lf-row-activity { background: var(--activity-bg); font-style: italic; }
.lf-level { white-space: nowrap; font-weight: 600; }
.lf-no { white-space: nowrap; color: var(--muted); }

.modal {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.35);
  display: flex; align-items: center; justify-content: center;
  z-index: 50;
}
.modal-card {
  background: var(--panel);
  border-radius: 10px;
  padding: 20px;
  width: 420px;
  max-width: 90vw;
}
.modal-card h2 { margin-top: 0; font-size: 16px; }
.modal-card input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  margin-top: 8px;
}
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }

.gate-overlay {
  position: fixed; inset: 0;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
}
.gate-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px;
  width: 320px;
  max-width: 90vw;
  text-align: center;
}
.gate-card h2 { margin-top: 0; font-size: 18px; }
.gate-card input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  margin: 10px 0;
  text-align: center;
}
.gate-card .btn { width: 100%; }
.gate-error { color: #a32020; font-size: 13px; }

@media (max-width: 860px) {
  .app-main { grid-template-columns: 1fr; height: auto; }
  .chat-panel { height: 60vh; }
}