:root { --bg:#f5f5f7; --card:#fff; --border:#d2d2d7; --text:#1d1d1f; --sub:#6e6e73; --primary:#0a84ff; }
*{box-sizing:border-box} body{margin:0;font:16px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,"Helvetica Neue",Arial}
.bb-bg{background:var(--bg); color:var(--text)}
.bb-container{max-width:960px; margin:0 auto; padding:16px}
.bb-header{position:sticky;top:0;background:rgba(255,255,255,.8);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--border)}
.bb-brand{font-weight:700}
.bb-nav{display:flex; gap:12px; align-items:center}
.bb-card{background:var(--card); border:1px solid var(--border); border-radius:16px; padding:20px; box-shadow:0 2px 12px rgba(0,0,0,.04)}
.bb-title{margin:0 0 8px}
.bb-sub{color:var(--sub); margin:0 0 16px}
.bb-row{display:flex; gap:12px; align-items:center; flex-wrap:wrap}
.bb-stack{display:grid; gap:16px}
.bb-btn{appearance:none;border:1px solid var(--border); background:#fff; padding:10px 14px; border-radius:12px; cursor:pointer}
.bb-btn.primary{background:var(--primary); color:#fff; border-color:var(--primary)}
.bb-btn.subtle{background:#fff}
.bb-link{color:var(--primary); text-decoration:none}
.bb-form{display:grid; gap:12px; margin-top:8px}
.bb-field{display:grid; gap:6px}
.bb-field input, .bb-field select{border:1px solid var(--border); border-radius:12px; padding:10px 12px; width:100%}
.bb-error{border:1px solid #ff375f; color:#ff375f; padding:8px 12px; border-radius:12px; background:#fff; margin-bottom:8px}
@media (max-width:600px){ .bb-container{padding:12px} .bb-card{padding:16px} }
.bb-row.between { justify-content: space-between; }
.bb-grid-4 { display:grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap:12px; }
@media (max-width:900px){ .bb-grid-4 { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width:520px){ .bb-grid-4 { grid-template-columns: 1fr; } }

.bb-stat-title{color:var(--sub); font-size:14px}
.bb-stat-value{font-size:28px; font-weight:700}
.bb-stat-sub{color:var(--sub); font-size:12px}

.bb-table-wrap{overflow:auto}
.bb-table{width:100%; border-collapse:collapse}
.bb-table th, .bb-table td{border-top:1px solid var(--border); padding:8px 10px; text-align:left; vertical-align:top}
.bb-table th{font-weight:600}

.bb-strong{font-weight:600}
.bb-textarea{width:100%; border:1px solid var(--border); border-radius:12px; padding:10px 12px; font:inherit}
.bb-field.small span{font-size:12px; color:var(--sub)}
.bb-field.small input{padding:8px 10px}
.bb-grid-2 { display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap:12px; }
@media (max-width:720px){ .bb-grid-2 { grid-template-columns: 1fr; } }

.bb-sep{opacity:.5;margin:0 6px}
.bb-table input { width: 100%; }
.bb-table td input[type=number] { text-align: right; }
.bb-table th:nth-child(4), .bb-table td:nth-child(4) { text-align: right; }
.bb-toolbar { display:flex; align-items:center; }
.toolbar-form { width:100%; display:flex; flex-wrap:wrap; gap:12px; align-items:flex-end; justify-content:space-between; }
.toolbar-form .filters { display:flex; gap:12px; flex-wrap:wrap; }
.toolbar-form .actions { display:flex; gap:8px; align-items:center; }

/* Landing Page Styles */
.bb-landing-container {
  min-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.bb-hero {
  text-align: center;
  max-width: 800px;
  width: 100%;
}

.bb-hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  margin: 0 0 1rem 0;
  background: linear-gradient(135deg, var(--primary), #007AFF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bb-hero-subtitle {
  font-size: 1.25rem;
  color: var(--sub);
  margin: 0 0 3rem 0;
  line-height: 1.5;
}

.bb-search-hero {
  max-width: 600px;
  margin: 0 auto;
}

.bb-search-form-hero {
  margin-bottom: 1rem;
}

.bb-search-container-hero {
  display: flex;
  gap: 0;
  background: white;
  border: 2px solid var(--border);
  border-radius: 50px;
  padding: 4px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
}

.bb-search-container-hero:focus-within {
  border-color: var(--primary);
  box-shadow: 0 8px 32px rgba(10, 132, 255, 0.2);
}

.bb-search-input-hero {
  flex: 1;
  border: none;
  outline: none;
  padding: 1rem 1.5rem;
  font-size: 1.1rem;
  background: transparent;
  border-radius: 46px;
}

.bb-search-input-hero::placeholder {
  color: var(--sub);
}

.bb-search-btn-hero {
  background: var(--primary);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 46px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
}

.bb-search-btn-hero:hover {
  background: #007AFF;
  transform: translateY(-1px);
}

.bb-search-icon {
  font-size: 1.1rem;
}

.bb-search-help-text {
  color: var(--sub);
  font-size: 0.9rem;
  margin: 0;
}

@media (max-width: 768px) {
  .bb-hero-title {
    font-size: 2.5rem;
  }
  
  .bb-hero-subtitle {
    font-size: 1.1rem;
  }
  
  .bb-search-container-hero {
    flex-direction: column;
    border-radius: 16px;
    padding: 8px;
  }
  
  .bb-search-input-hero {
    border-radius: 12px;
    margin-bottom: 4px;
  }
  
  .bb-search-btn-hero {
    border-radius: 12px;
    justify-content: center;
  }
}
.toolbar-form .actions .quick { display:flex; gap:6px; }
.bb-card.warn { margin-top:8px; border-color:#ff9f0a; color:#ff9f0a; }
.bb-toolbar { padding: 4px 0; }
.toolbar-form {width: 100%;display: grid;grid-template-columns: 1fr auto;gap: 12px;align-items: end;}
.toolbar-form .filters {display: grid;grid-template-columns: repeat(3, minmax(180px, 1fr));gap: 12px;}
.toolbar-form .actions {display: flex;gap: 8px;align-items: center;justify-content: flex-end;}
/* Segmented quick-range control */
.btn-group {display: inline-flex;border: 1px solid var(--border);border-radius: 10px;overflow: hidden;height: 38px;}
.btn-group .segment {background: #fff;border: 0;border-right: 1px solid var(--border);padding: 8px 12px;cursor: pointer;}
.btn-group .segment:last-child { border-right:0;}.bb-field.small input[type="date"],.bb-field.small input[type="text"],.bb-field.small input:not([type]) {height: 38px;}
@media (max-width: 880px) {.toolbar-form {grid-template-columns: 1fr;}.toolbar-form .actions {justify-content: flex-start;flex-wrap: wrap;}.btn-group { order: 3;}}.bb-table thead .summary-top th {background: #fafafa;position: sticky;top: 44px;z-index: 1;font-weight: 700;}