@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg-deep: #050812; --bg-mid: #080e22; --bg-elevated: #0d1635;
  --bg-hover: rgba(59,130,246,0.08); --accent: #3b82f6; --accent-light: #60a5fa;
  --accent-glow: rgba(59,130,246,0.2); --cyan: #06b6d4;
  --text-primary: #e2e8f0; --text-secondary: #94a3b8; --text-dim: #64748b;
  --border: rgba(59,130,246,0.12); --border-light: rgba(148,163,184,0.08);
  --font-sans: "Inter",sans-serif; --font-mono: "JetBrains Mono",monospace;
  --hdr: 3rem; --ftr: 2.5rem;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}body{background:var(--bg-deep);color:var(--text-primary);font-family:var(--font-sans);line-height:1.5;min-height:100vh;display:flex;flex-direction:column}

/* Header */
.browser-header{position:sticky;top:0;z-index:50;background:rgba(5,8,18,0.95);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);height:var(--hdr)}
.browser-header-inner{max-width:1320px;margin:0 auto;padding:0 2rem;height:100%;display:flex;align-items:center;justify-content:space-between}
.browser-back{display:flex;align-items:center;gap:.5rem;color:var(--text-secondary);text-decoration:none;font-size:.82rem;font-weight:500;transition:color .15s}
.browser-back:hover{color:var(--text-primary)}
.browser-logo{display:flex;align-items:center;gap:.5rem;font-weight:700;font-size:1rem;color:var(--text-primary)}

/* Main */
.browser-main{flex:1;max-width:1320px;width:100%;margin:0 auto;padding:2rem}
.search-section{background:var(--bg-mid);border:1px solid var(--border);border-radius:8px;padding:1.5rem;margin-bottom:1.5rem}
.search-tabs{display:flex;gap:.5rem;margin-bottom:1.25rem}
.search-tab{padding:.4rem 1rem;border:1px solid var(--border);border-radius:6px;background:transparent;color:var(--text-secondary);font-size:.82rem;font-family:var(--font-sans);cursor:pointer;transition:all .15s}
.search-tab:hover{border-color:var(--accent);color:var(--text-primary)}
.search-tab.active{background:var(--accent);border-color:var(--accent);color:#fff}
.search-input-group{display:flex;margin-bottom:1rem}
.search-input{flex:1;padding:.65rem 1rem;border:1px solid var(--border);border-right:none;border-radius:6px 0 0 6px;background:var(--bg-elevated);color:var(--text-primary);font-size:.92rem;font-family:var(--font-sans);outline:none;transition:border-color .15s}
.search-input:focus{border-color:var(--accent)}
.search-input::placeholder{color:var(--text-dim)}
.search-btn{padding:.65rem 1.75rem;border:none;border-radius:0 6px 6px 0;background:var(--accent);color:#fff;font-size:.9rem;font-weight:500;font-family:var(--font-sans);cursor:pointer;transition:background .15s}
.search-btn:hover{background:var(--accent-light)}
.search-hints{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}
.hints-label{font-size:.78rem;color:var(--text-dim)}
.hint-link{font-size:.8rem;color:var(--accent-light);text-decoration:none;padding:.15rem .6rem;border:1px solid var(--border);border-radius:4px;transition:all .15s;cursor:pointer}
.hint-link:hover{background:var(--bg-hover);border-color:var(--accent)}

/* Results */
.results-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;flex-wrap:wrap;gap:.75rem}
.results-summary{font-size:.85rem;color:var(--text-secondary)}
.results-summary span{color:var(--accent-light);font-weight:600}
.results-filters{display:flex;gap:.5rem}
.filter-select{padding:.4rem .75rem;border:1px solid var(--border);border-radius:6px;background:var(--bg-mid);color:var(--text-secondary);font-size:.78rem;font-family:var(--font-sans);cursor:pointer;outline:none}
.filter-select:focus{border-color:var(--accent)}

/* Table */
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:8px;background:var(--bg-mid)}
.results-table{width:100%;border-collapse:collapse;font-size:.85rem}
.results-table thead{z-index:1}
.results-table th{padding:.7rem .85rem;text-align:left;font-weight:600;font-size:.78rem;color:var(--text-dim);text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid var(--border);background:rgba(5,8,18,0.9);white-space:nowrap;user-select:none}
.results-table th.sortable{cursor:pointer;transition:color .15s}
.results-table th.sortable:hover{color:var(--accent-light)}
.sort-arrow{font-size:.65rem;margin-left:.25rem;opacity:0;transition:opacity .15s}
.results-table th.sortable.asc .sort-arrow::after{content:"\25B2";opacity:1}
.results-table th.sortable.desc .sort-arrow::after{content:"\25BC";opacity:1}
.results-table td{padding:.6rem .85rem;border-bottom:1px solid var(--border-light);color:var(--text-primary);white-space:nowrap;font-variant-numeric:tabular-nums}
.results-table tbody tr{transition:background .12s}
.results-table tbody tr:hover{background:var(--bg-hover)}
.results-table .cell-vid{font-family:var(--font-mono);font-size:.8rem;color:var(--accent-light)}
.results-table .cell-gene{font-weight:600;color:var(--cyan)}
.results-table .cell-pos{font-family:var(--font-mono);font-size:.8rem;color:var(--text-secondary)}
.results-table .cell-type{font-size:.78rem}
.results-table .cell-maf{font-family:var(--font-mono);font-size:.8rem}
.results-table .cell-cohort{font-size:.78rem}
.results-table .cell-detail button{background:transparent;border:1px solid var(--border);border-radius:4px;color:var(--text-secondary);padding:.25rem .6rem;font-size:.75rem;cursor:pointer;transition:all .15s}
.results-table .cell-detail button:hover{background:var(--bg-hover);border-color:var(--accent);color:var(--text-primary)}
.type-badge{display:inline-block;padding:.15rem .5rem;border-radius:3px;font-size:.72rem;font-weight:600;letter-spacing:.03em}
.type-SNP{background:rgba(59,130,246,0.15);color:var(--accent-light)}
.type-INDEL{background:rgba(6,182,212,0.15);color:var(--cyan)}
.type-CNV{background:rgba(139,92,246,0.15);color:#a78bfa}

/* Pagination */
.pagination{display:flex;justify-content:center;align-items:center;gap:.5rem;margin-top:1.25rem;padding:.5rem 0}
.page-btn{width:32px;height:32px;border:1px solid var(--border);border-radius:6px;background:var(--bg-mid);color:var(--text-secondary);font-size:.8rem;font-family:var(--font-mono);cursor:pointer;transition:all .12s;display:flex;align-items:center;justify-content:center}
.page-btn:hover:not(:disabled){border-color:var(--accent);color:var(--text-primary)}
.page-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}
.page-btn:disabled{opacity:.3;cursor:default}
.page-ellipsis{color:var(--text-dim);font-size:.8rem;padding:0 .25rem}

/* Empty state */
.empty-state{text-align:center;padding:5rem 2rem;color:var(--text-dim)}
.empty-icon{margin-bottom:1rem;opacity:.3}
.empty-state h2{font-size:1.25rem;font-weight:600;color:var(--text-secondary);margin-bottom:.5rem}
.empty-state p{font-size:.9rem}

/* Detail panel */
.detail-overlay{position:fixed;inset:0;z-index:100;background:rgba(0,0,0,0.6);display:flex;align-items:center;justify-content:center;padding:1rem}
.detail-panel{background:var(--bg-mid);border:1px solid var(--border);border-radius:12px;max-width:600px;width:100%;max-height:80vh;overflow-y:auto;padding:1.5rem}
.detail-panel h3{font-size:1.1rem;margin-bottom:1rem;color:var(--accent-light)}
.detail-grid{display:grid;grid-template-columns:auto 1fr;gap:.6rem 1.5rem;font-size:.85rem}
.detail-label{color:var(--text-dim)}
.detail-value{color:var(--text-primary);font-family:var(--font-mono);font-size:.82rem}
.detail-close{position:absolute;top:.75rem;right:.75rem;background:transparent;border:none;color:var(--text-dim);cursor:pointer;font-size:1.2rem}
.detail-panel{position:relative}


/* Export button */
.export-btn{padding:.4rem 1rem;border:1px solid var(--border);border-radius:6px;background:var(--bg-mid);color:var(--accent-light);font-size:.78rem;font-family:var(--font-sans);cursor:pointer;transition:all .15s;margin-right:.5rem}
.export-btn:hover{background:var(--bg-hover);border-color:var(--accent)}/* Footer */
.browser-footer{text-align:center;padding:1rem;color:var(--text-dim);font-size:.72rem;border-top:1px solid var(--border)}

@media(max-width:768px){
  .browser-main{padding:1rem}
  .search-tabs{flex-wrap:wrap}
  .search-tab{font-size:.75rem;padding:.3rem .7rem}
  .results-toolbar{flex-direction:column;align-items:flex-start}
  .results-table{font-size:.78rem}
  .results-table th,.results-table td{padding:.45rem .5rem}
}
/* Error banner */
.error-banner{display:flex;align-items:center;gap:1rem;padding:1.5rem 2rem;margin:0;background:rgba(239,68,68,0.12);border:1px solid rgba(239,68,68,0.3);border-radius:8px;text-align:left}
.error-icon{width:40px;height:40px;border-radius:50%;background:rgba(239,68,68,0.2);color:#ef4444;display:flex;align-items:center;justify-content:center;font-size:1.3rem;font-weight:800;flex-shrink:0}
.error-text strong{color:#fca5a5;font-size:.95rem;display:block;margin-bottom:.25rem}
.error-text{color:#fca5a5;font-size:.85rem;line-height:1.5}
.error-text small{color:#94a3b8}