:root {
  --bg: #0f1720;
  --panel: #1a2532;
  --accent: #4fb0ff;
  --accent-2: #7ee787;
  --text: #e6edf3;
  --muted: #8b98a5;
  --danger: #ff6b6b;
  --warn: #ffb454;
}

* { box-sizing: border-box; }

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

.topbar {
  padding: 16px 24px;
  border-bottom: 1px solid #263140;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}

.topbar h1 {
  margin: 0 0 12px;
  font-size: 22px;
}
.topbar h1 span {
  font-size: 14px;
  color: var(--muted);
  font-weight: normal;
  margin-left: 8px;
}

.tabs { display: flex; gap: 8px; flex-wrap: wrap; }

.tab-btn {
  background: var(--panel);
  color: var(--text);
  border: 1px solid #263140;
  padding: 8px 16px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 14px;
}
.tab-btn.active { background: var(--accent); color: #051018; border-color: var(--accent); }

main { padding: 24px; max-width: 960px; margin: 0 auto; }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.card {
  background: var(--panel);
  border: 1px solid #263140;
  border-radius: 12px;
  padding: 16px;
  cursor: pointer;
  transition: border-color 0.15s;
}
.card:hover { border-color: var(--accent); }
.card h3 { margin: 0 0 8px; }
.card .meta { color: var(--muted); font-size: 13px; margin-bottom: 8px; }
.badge {
  display: inline-block;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 10px;
  margin-right: 6px;
}
.badge.risk-low { background: #16321f; color: var(--accent-2); }
.badge.risk-medium { background: #3a2f13; color: var(--warn); }
.badge.risk-high { background: #3a1717; color: var(--danger); }

.link-btn {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-size: 14px;
  padding: 0 0 12px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  align-items: end;
  margin-top: 16px;
  max-width: 700px;
}
.form-grid label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
}
.form-grid input, .form-grid select {
  background: var(--panel);
  border: 1px solid #263140;
  color: var(--text);
  padding: 8px;
  border-radius: 6px;
  font-size: 14px;
}
.form-grid button, .chat-input-row button {
  background: var(--accent);
  color: #051018;
  border: none;
  padding: 10px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
}

#risk-result { margin-top: 20px; }
.risk-card {
  background: var(--panel);
  border: 1px solid #263140;
  border-radius: 12px;
  padding: 16px;
  max-width: 400px;
}
.risk-bar-row { display: flex; align-items: center; gap: 8px; margin: 6px 0; font-size: 13px; }
.risk-bar-track { flex: 1; background: #0f1720; border-radius: 6px; height: 8px; overflow: hidden; }
.risk-bar-fill { height: 100%; background: var(--accent); }

#chat-window {
  background: var(--panel);
  border: 1px solid #263140;
  border-radius: 12px;
  padding: 16px;
  height: 360px;
  overflow-y: auto;
  margin-top: 16px;
}
.chat-msg { margin-bottom: 12px; max-width: 80%; padding: 8px 12px; border-radius: 10px; line-height: 1.4; }
.chat-msg.user { background: var(--accent); color: #051018; margin-left: auto; }
.chat-msg.bot { background: #263140; }

.chat-input-row { display: flex; gap: 8px; margin-top: 12px; }
.chat-input-row input {
  flex: 1;
  background: var(--panel);
  border: 1px solid #263140;
  color: var(--text);
  padding: 10px;
  border-radius: 6px;
}

footer {
  text-align: center;
  padding: 12px;
  color: var(--muted);
  font-size: 12px;
}