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16px;list-style:none;display:grid}.subject>summary::-webkit-details-marker{display:none}@media (max-width:640px){.subject>summary{grid-template-columns:1fr auto}.subject .subject-bars{grid-column:1/-1}}.subject-title{font-family:var(--font-display);font-size:15px;font-weight:700}.subject-title small{font-family:var(--font-body);color:var(--ink-2);font-size:12px;font-weight:400;display:block}.subject-bars{gap:4px;display:grid}.chev{color:var(--ink-3);transition:transform .15s}.subject[open] .chev{transform:rotate(90deg)}.topics{border-top:1px solid var(--rule);margin:0;padding:0 0 6px;list-style:none}.topic{border-bottom:1px solid var(--rule);grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:12px;padding:10px 16px;display:grid}.topic:last-child{border-bottom:0}.topic.child{padding-left:34px}.topic.parent{background:color-mix(in srgb, var(--paper) 60%, transparent)}.topic-title{font-size:14px}.topic-title small{color:var(--ink-3);font-size:12px;display:block}.mates{gap:4px;display:flex}.mate{border:1.5px solid var(--trace);background:0 0;border-radius:50%;width:12px;height:12px}.mate[data-s=in_progress]{background:linear-gradient(90deg, var(--trace) 50%, transparent 50%)}.mate[data-s=studied],.mate[data-s=mastered]{background:var(--trace)}.mate[data-s=mastered]{box-shadow:0 0 0 2px var(--surface), 0 0 0 3.5px var(--trace)}.status-select{border-radius:var(--radius-sm);border:1px solid var(--rule-strong);background:var(--surface);min-width:128px;padding:5px 8px;font-size:13px}.status-select[data-s=studied],.status-select[data-s=mastered]{border-color:var(--ok);color:var(--ok)}.status-select[data-s=in_progress]{border-color:var(--warn)}.status-badge{border:1px solid var(--rule-strong);white-space:nowrap;color:var(--ink-2,inherit);border-radius:999px;padding:4px 10px;font-size:12.5px}.status-badge[data-s=studied],.status-badge[data-s=mastered]{border-color:var(--ok);color:var(--ok)}.status-badge[data-s=mastered]{font-weight:600}.status-badge[data-s=in_progress]{border-color:var(--warn)}.not-counted{color:var(--ink-3);font-size:11.5px}.feed{margin:0;padding:4px 0;list-style:none}.feed li{border-bottom:1px solid var(--rule);grid-template-columns:auto minmax(0,1fr) auto;align-items:baseline;gap:10px;padding:9px 16px;font-size:14px;display:grid}.feed li:last-child{border-bottom:0}.feed time{color:var(--ink-3);white-space:nowrap;font-size:12px}.feed .swatch{transform:translateY(1px)}.timer{gap:10px;padding:16px;display:grid}.timer .clock{font-family:var(--font-mono);font-size:28px;font-weight:500}.narrow{max-width:520px;padding:0 var(--gutter);margin:48px auto}.card-pad{padding:22px}.form{gap:12px;display:grid}.field{gap:5px;font-size:13.5px;display:grid}.field span{color:var(--ink-2)}.input{border:1px solid var(--rule-strong);border-radius:var(--radius-sm);background:var(--surface);width:100%;padding:9px 12px}textarea.input{min-height:140px;font-family:var(--font-mono);font-size:12.5px}.code{font-family:var(--font-mono);letter-spacing:.08em;background:var(--paper);border:1px dashed var(--rule-strong);border-radius:var(--radius-sm);padding:10px 14px;font-size:22px;display:inline-block}.list-plain{margin:0;padding:0;list-style:none}.list-plain li{border-bottom:1px solid var(--rule);justify-content:space-between;align-items:center;gap:10px;padding:10px 0;font-size:14px;display:flex}.muted{color:var(--ink-2)}.small{font-size:12.5px}.stack{gap:16px;display:grid}.row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.skeleton{background:linear-gradient(90deg, var(--rule) 25%, color-mix(in srgb, var(--rule) 50%, var(--surface)) 50%, var(--rule) 75%);border-radius:var(--radius);background-size:200% 100%;animation:1.4s infinite shimmer}@keyframes shimmer{to{background-position:-200% 0}}.toast{z-index:10;border-radius:999px;max-width:calc(100vw - 32px);padding:10px 16px;font-size:13.5px;position:fixed;bottom:20px;left:50%;transform:translate(-50%);box-shadow:0 6px 24px #00000026}.dot-key{color:var(--ink-3);flex-wrap:wrap;gap:12px;margin-top:4px;font-size:12px;display:inline-flex}.dot-key span{align-items:center;gap:5px;display:inline-flex}.dot-key .mate{--trace:var(--ink-3)}.rules-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px 16px;display:grid}.rules-grid small{margin-top:4px;font-size:12px;display:block}.verified-note{color:var(--ink-3);margin:6px 0 0;font-size:12px}.status-badge[data-v=tutor_keyed]{border-style:dashed}