:root {
  --bg: #0b1220;
  --panel: #111a2b;
  --panel-2: #0f1726;
  --text: #e7eefc;
  --subtext: #aeb7c9;
  --brand: #4f7cff;
  --accent: #22c55e;
  --border: #1f2a44;
  --danger: #ef4444;
}
/* light theme tokens */
.theme-light {
  --bg: #f7f8fb;
  --panel: #ffffff;
  --panel-2: #ffffff;
  --text: #0b1220;
  --subtext: #465065;
  --brand: #3353b0;
  --accent: #16a34a;
  --border: #e5e7ef;
  --danger: #dc2626;
  background: #f7f8fb;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu,
    Cantarell, "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 800px at 10% -10%, #19233a 0%, #0b1220 60%) fixed,
    var(--bg);
}
.theme-light body, body.theme-light {
  background: var(--bg);
}

.app {
  display: grid;
  grid-template-columns: 260px 1fr;
  grid-template-rows: auto 1fr;
  min-height: 100vh;
}

.sidebar {
  grid-row: 1 / span 2;
  background: linear-gradient(180deg, var(--panel) 0%, var(--panel-2) 100%);
  border-right: 1px solid var(--border);
  padding: 16px 12px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  font-weight: 700;
  color: var(--text);
}
.brand-logo {
  font-size: 20px;
}
.brand-text {
  letter-spacing: 0.5px;
}

.nav {
  margin-top: 8px;
}
.nav-divider {
  height: 1px;
  background: var(--border);
  margin: 8px 8px 12px;
}
.nav-item {
  width: 100%;
  text-align: left;
  padding: 10px 12px;
  margin: 6px 4px;
  background: transparent;
  color: var(--text);
  border: 1px solid transparent;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.15s ease;
  font-size: 14px;
}
.nav-item:hover {
  background: rgba(79, 124, 255, 0.08);
  border-color: var(--border);
}
.nav-item.active {
  background: rgba(79, 124, 255, 0.14);
  border-color: #3353b0;
  box-shadow: inset 0 0 0 1px rgba(79, 124, 255, 0.2);
}

.sidebar-footer {
  position: absolute;
  bottom: 10px;
  left: 12px;
  right: 12px;
  color: var(--subtext);
  font-size: 12px;
}

.main {
  display: grid;
  grid-template-rows: 56px 1fr;
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border);
  padding: 10px 14px;
  background: rgba(15, 23, 38, 0.7);
  backdrop-filter: blur(6px);
}
.icon-btn {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
}
.topbar-spacer {
  flex: 1;
}
.user {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--subtext);
}
.avatar {
  background: #223356;
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
}

.content {
  padding: 18px;
}

.card {
  background: linear-gradient(180deg, rgba(255,255,255,0.02) 0%, rgba(255,255,255,0.01) 100%), var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}
.grid {
  display: grid;
  gap: 14px;
}
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
/* safer wrapping */
.card h3, .list-item div, .hint { word-break: break-word; overflow-wrap: anywhere; }

.search-hero {
  display: grid;
  gap: 10px;
  padding: 24px;
  text-align: center;
}
.search-input {
  display: flex;
  gap: 8px;
}
.search-input input {
  flex: 1;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #0b1322;
  color: var(--text);
}
.search-input button {
  padding: 12px 16px;
  border-radius: 12px;
  background: var(--brand);
  color: white;
  border: none;
  cursor: pointer;
}
.hint {
  color: var(--subtext);
  font-size: 13px;
}

.quick-links {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}
.quick-link {
  display: grid;
  place-items: center;
  padding: 16px 10px;
  border: 1px dashed var(--border);
  border-radius: 12px;
  color: var(--text);
  cursor: pointer;
  background: rgba(255, 255, 255, 0.02);
}
.quick-link:hover { background: rgba(79,124,255,0.08); }

.list {
  display: grid;
  gap: 10px;
}
.list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255,255,255,0.02);
}

.form {
  display: grid;
  gap: 12px;
}
.row { display: grid; gap: 10px; }
.row.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.row.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.form input, .form select, .form textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0b1322;
  color: var(--text);
}
.btn {
  padding: 10px 14px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
}
.btn.primary { background: var(--brand); color: white; }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }

.chat-box {
  display: grid;
  gap: 10px;
}
.chat-log {
  display: grid;
  gap: 8px;
  max-height: 340px;
  overflow: auto;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255,255,255,0.02);
}
.msg { display: grid; gap: 4px; }
.msg .role { font-size: 12px; color: var(--subtext); }
.msg .bubble { background: #0e1830; border: 1px solid var(--border); padding: 10px; border-radius: 10px; }

/* Additions for home overview sections */
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.card-header .title { font-size: 16px; font-weight: 600; }
.refresh-btn {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
}
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 9999px;
  font-size: 12px;
  border: 1px solid var(--border);
}
.badge.positive { color: #16a34a; border-color: #14532d; background: rgba(22,163,74,0.08); }
.badge.negative { color: #dc2626; border-color: #7f1d1d; background: rgba(220,38,38,0.08); }
.badge.neutral { color: var(--subtext); border-color: var(--border); background: rgba(255,255,255,0.04); }
.link { color: #9ab4ff; text-decoration: none; }
.link:hover { text-decoration: underline; }

.tabs { display: flex; gap: 8px; margin-bottom: 10px; flex-wrap: wrap; }
.tab { padding: 8px 12px; border: 1px solid var(--border); border-radius: 999px; background: transparent; color: var(--text); cursor: pointer; }
.tab.active { background: rgba(79,124,255,0.14); border-color: #3353b0; }
.scenario-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.scenario-card { border: 1px solid var(--border); border-radius: 12px; padding: 12px; background: rgba(255,255,255,0.02); display: grid; gap: 8px; }
.scenario-title { font-weight: 600; }
.scenario-actions { display: flex; gap: 8px; justify-content: flex-end; }
.pill { display: inline-block; padding: 2px 8px; border: 1px solid var(--border); border-radius: 999px; font-size: 12px; color: var(--subtext); }

@media (max-width: 1024px) {
  .app { grid-template-columns: 0 1fr; }
  .sidebar { position: fixed; left: 0; top: 0; bottom: 0; transform: translateX(-100%); transition: transform 0.2s ease; width: 240px; height: 100%; z-index: 10; }
  .sidebar.open { transform: translateX(0); }
  .quick-links { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .scenario-grid { grid-template-columns: 1fr; }
  .grid.cols-3 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
  .grid.cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid.cols-2 { grid-template-columns: 1fr; }
  .search-input { flex-direction: column; }
  .search-input button { width: 100%; }
}