.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
.chip { border: 1px solid var(--border); background: var(--surface); padding: 6px 12px; border-radius: 999px; cursor: pointer; }
.chip:hover { border-color: var(--accent); }
.mode-switch { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin: 8px 0 12px; }
.input-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.table-scroll { overflow-x: auto; }
.input-table { width: 100%; border-collapse: collapse; min-width: 420px; }
.input-table th, .input-table td { border: 1px solid var(--border); padding: 6px; text-align: left; }
.input-table input { width: 100%; box-sizing: border-box; }
.raw-panel { border: 1px solid var(--border); border-radius: 14px; padding: 12px; background: linear-gradient(135deg, rgba(11,87,208,0.06), rgba(0,0,0,0)); box-shadow: 0 10px 30px rgba(0,0,0,0.06); }
.raw-panel label { display: block; }
.raw-panel .raw-input, .raw-panel textarea { width: 100%; box-sizing: border-box; border: 1px solid var(--border); border-radius: 12px; padding: 10px 12px; font-family: var(--font-mono, monospace); background: rgba(255,255,255,0.75); }
.raw-panel .raw-input:focus, .raw-panel textarea:focus { outline: 2px solid var(--accent); }
.note-box { border: 1px solid var(--border); border-radius: 10px; padding: 10px; background: var(--surface); }
.banner { border: 1px solid #d81b60; background: rgba(216,27,96,0.08); color: #9b1747; padding: 10px; border-radius: 10px; margin: 8px 0; }
.status-line { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 8px 0; }
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); font-size: 0.95rem; }
.badge.good { border-color: #0b57d0; color: #0b57d0; }
.badge.warn { border-color: #d81b60; color: #d81b60; }
.summary-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.summary-tile { border: 1px solid var(--border); background: var(--surface); border-radius: 10px; padding: 10px; }
.summary-tile strong { display: block; font-size: 1.2rem; }
.derived-table { width: 100%; border-collapse: collapse; }
.derived-table th, .derived-table td { border: 1px solid var(--border); padding: 6px; text-align: right; }
.derived-table th:first-child, .derived-table td:first-child { text-align: left; }
.derived-table tr.highlight { background: rgba(11,87,208,0.08); }
.derived-table tr.modal { outline: 2px solid var(--accent); }
.derived-table tr.median { border-bottom: 2px dashed var(--accent); }
.graph-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; }
.graph-card svg { width: 100%; height: auto; }
.graph-card { border: 1px solid var(--border); border-radius: 12px; padding: 10px; background: var(--surface); }
.graph-card .highlight { outline: 2px solid var(--accent); }
.legend { display: flex; flex-wrap: wrap; gap: 10px; margin: 8px 0; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend .marker { width: 14px; height: 14px; display: inline-block; border-radius: 3px; background: #0b57d0; }
.legend .marker.line { background: transparent; border: 2px solid #d81b60; }
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 10px; }
.step-card { border: 1px solid var(--border); border-radius: 10px; padding: 10px; background: var(--surface); }
.action-row { display: flex; flex-wrap: wrap; gap: 8px; }
.sr-status { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.teacher-mode .derived-table th, .teacher-mode .derived-table td { font-size: 1.05rem; }
.teacher-mode .graph-card { border-width: 2px; }
.toggle-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.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; }