:root {
  /* Carbon-inspired g100 theme tokens */
  --bg: #161616;              /* background */
  --layer-01: #262626;        /* layer */
  --layer-02: #2f2f2f;        /* alt layer */
  --border-subtle: #393939;   /* subtle border */
  --border-strong: #6f6f6f;   /* strong border */

  --text-primary: #f4f4f4;
  --text-secondary: #c6c6c6;
  --text-helper: #a8a8a8;

  --interactive: #78a9ff;       /* link/interactive (blue 40) */
  --interactive-strong: #0f62fe; /* button (blue 60) */
  --interactive-hover: #0353e9;
  --focus: #0f62fe;

  --support-info: #4589ff;
  --support-success: #42be65;
  --support-warning: #f1c21b;
  --support-error: #fa4d56;

  --radius: 8px;
  --radius-sm: 6px;
  --radius-xs: 4px;

  --shadow-0: none;
  --shadow-1: 0 1px 0 rgba(0,0,0,0.6);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  font-family: "IBM Plex Sans", ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  background: var(--bg);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.45;
}
body.auth-open { overflow: hidden; }

a { color: var(--interactive); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Accessibility helpers */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: -9999px; top: auto; width: 1px; height: 1px; overflow: hidden;
}
.skip-link:focus {
  position: fixed; left: 12px; top: 12px; width: auto; height: auto;
  padding: 10px 12px; background: var(--layer-01);
  border: 2px solid var(--focus); border-radius: var(--radius-xs); z-index: 100;
}

/* Password gate overlay */
.auth-overlay {
  position: fixed; inset: 0; z-index: 9999;
  display: grid; place-items: center;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
}
.auth-card {
  width: min(92vw, 420px);
  background: var(--layer-01);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  box-shadow: var(--shadow-0);
  padding: 18px 16px 16px;
}
.auth-brand { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.brand .dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--interactive-strong);
  box-shadow: 0 0 0 3px rgba(15,98,254,0.25);
}
.brand-name { font-weight: 600; font-size: 16px; letter-spacing: 0.2px; }
.auth-title { margin: 4px 0 4px; font-size: 18px; font-weight: 600; }
.auth-subtitle { margin: 0 0 12px; color: var(--text-secondary); font-size: 14px; }
.auth-form { display: grid; grid-template-columns: 1fr auto; gap: 8px; align-items: center; }
.auth-form input[type="password"] {
  padding: 12px 14px;
  color: var(--text-primary);
  background: var(--layer-02);
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  outline: none;
}
.auth-form input[type="password"]::placeholder { color: var(--text-helper); }
.auth-form input[type="password"]:focus {
  border-color: var(--focus);
  box-shadow: 0 0 0 2px rgba(15,98,254,0.35);
}
.auth-error {
  grid-column: 1 / -1;
  color: var(--support-error);
  background: #2a1214;
  border: 1px solid #51292b;
  border-radius: var(--radius-xs);
  padding: 8px 10px;
  font-size: 13px;
}

/* UI Shell-like header (non-sticky) */
.ui-header {
  position: static; /* was sticky; now non-sticky */
  top: auto;
  z-index: auto;
  background: var(--layer-01);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-0);
}
.ui-header-row {
  height: 48px; display: flex; align-items: center; gap: 10px;
  padding: env(safe-area-inset-top) 12px 0 12px;
}
.icon-btn {
  height: 36px; width: 36px; border-radius: 50%;
  background: transparent; color: var(--text-primary);
  border: 1px solid transparent;
}
.icon-btn:focus-visible {
  outline: none; border-color: var(--focus); box-shadow: 0 0 0 2px rgba(15,98,254,0.4);
}
.brand { display: inline-flex; align-items: center; gap: 10px; }

.app-header { padding: 10px 12px 12px; }

/* Inputs */
.search-row {
  display: flex; gap: 8px;
}
input[type="search"] {
  flex: 1;
  padding: 12px 14px;
  color: var(--text-primary);
  background: var(--layer-02);
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  outline: none;
}
input[type="search"]::placeholder { color: var(--text-helper); }
input[type="search"]:focus {
  border-color: var(--focus);
  box-shadow: 0 0 0 2px rgba(15, 98, 254, 0.35);
}

.filters {
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 10px;
}
select {
  appearance: none;
  width: 100%;
  padding: 10px 12px;
  color: var(--text-primary);
  background: var(--layer-02) url("data:image/svg+xml,%3Csvg width='16' height='16' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='%23c6c6c6' d='M8 11L3 6h10z'/%3E%3C/svg%3E") no-repeat right 10px center/16px 16px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
}
select:focus {
  border-color: var(--focus);
  box-shadow: 0 0 0 2px rgba(15, 98, 254, 0.35);
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 12px; border-radius: var(--radius-xs);
  font-weight: 500; line-height: 1; cursor: pointer;
  border: 1px solid var(--border-subtle);
}
.btn-primary {
  background: var(--interactive-strong);
  color: #ffffff;
  border-color: transparent;
}
.btn-primary:hover { background: var(--interactive-hover); }
.btn-secondary {
  background: var(--layer-02);
  color: var(--text-primary);
}
.btn-secondary:active { transform: translateY(1px); }
.btn-ghost {
  background: transparent; color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}

/* Status + fallback */
.load-status, .load-fallback {
  margin-top: 10px;
  background: #1b1b1b;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 10px 12px;
  color: var(--text-secondary);
}
.load-status .spinner {
  width: 18px; height: 18px; border-radius: 50%;
  border: 2px solid #2a2a2a; border-top-color: var(--interactive-strong);
  animation: spin 1s linear infinite; display: inline-block; margin-left: 8px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.file-picker {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 12px; border: 1px dashed var(--border-subtle);
  border-radius: var(--radius-xs); background: var(--layer-01); cursor: pointer;
}
.file-picker input { display: none; }
.file-picker span { color: var(--text-primary); }

/* Summary row */
.summary {
  display: flex; justify-content: space-between; padding: 10px 12px;
  color: var(--text-secondary);
}

/* Cards list */
.cards {
  display: grid; padding: 8px; gap: 10px;
}
.card {
  background: var(--layer-01);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  box-shadow: var(--shadow-0);
  overflow: hidden;
}
.card-header {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  padding: 12px; border-bottom: 1px solid var(--border-subtle); gap: 8px;
}
.card-header .name { margin: 0; font-size: 16px; line-height: 1.2; font-weight: 600; }
.badges { display: flex; gap: 6px; flex-wrap: wrap; }
.badge {
  font-size: 12px; color: var(--text-secondary);
  background: #303030; border: 1px solid var(--border-subtle);
  border-radius: 999px; padding: 4px 8px;
}
.badge.industry { color: #a6c8ff; border-color: #3a3a3a; }
.badge.size { color: #8cd9a6; border-color: #3a3a3a; }

.card-body { padding: 10px 12px 12px; }
.kv { display: grid; grid-template-columns: 110px 1fr; gap: 8px; padding: 5px 0; }
.kv .k { color: var(--text-secondary); }
.kv .v { color: var(--text-primary); word-break: break-word; }

.more summary {
  margin-top: 6px; cursor: pointer; color: var(--interactive); font-weight: 600;
}
.more[open] summary { color: var(--support-success); }
.more .kv { padding: 6px 0; }

/* Footer */
.ui-footer {
  border-top: 1px solid var(--border-subtle);
  background: var(--layer-01);
  margin-top: 8px;
}
.footer-inner { padding: 12px; color: var(--text-secondary); font-size: 12px; }

/* Larger phones / small tablets */
@media (min-width: 520px) {
  .filters { grid-template-columns: repeat(3, 1fr); }
  .cards { grid-template-columns: 1fr 1fr; }
}