.trainer-settings{display:grid;gap:20px}
.trainer-settings h2{margin-bottom:18px;font-size:20px}
.trainer-modes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.trainer-mode{display:flex;gap:11px;align-items:flex-start;padding:17px 14px;border:1px solid var(--line);border-radius:8px;background:var(--paper);cursor:pointer;min-width:0}
.trainer-mode:has(input:checked){background:var(--soft);border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent)}
.trainer-mode input{accent-color:var(--accent);width:17px;height:17px;flex-shrink:0;margin:3px 0 0}
.trainer-mode span{min-width:0}.trainer-mode strong{display:block;font-size:15px;font-weight:500;line-height:1.4}.trainer-mode small{display:block;font-size:12px;color:var(--muted);line-height:1.55;margin-top:7px}
.trainer-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 24px}
.trainer-field{display:flex;flex-direction:column;gap:8px;font-size:13px;color:var(--ink);min-width:0}
.trainer-field input,.trainer-field select{background:var(--paper);border:1px solid #bdcbbd;border-radius:6px;padding:11px 12px;font:inherit;font-size:15px;color:var(--ink);width:100%;min-width:0;min-height:46px}
.trainer-field input:focus,.trainer-field select:focus,.trainer-coefficient input:focus{outline:2px solid var(--accent);outline-offset:2px}
.trainer-context{align-self:end;background:var(--soft);padding:12px 14px;border-radius:6px;font-size:13px;overflow-wrap:anywhere}
.trainer-start{display:flex;justify-content:space-between;align-items:center;gap:18px;border-top:1px solid var(--line);margin-top:24px;padding-top:21px;font-size:14px}
.trainer-start strong{font-weight:500}.trainer-caption{display:block;font-size:12px;color:var(--muted);margin-top:3px}.trainer-notice{margin-top:16px;font-size:13px;color:var(--muted)}.trainer-settings button:disabled{opacity:.5;cursor:default}
.trainer-entry-actions{display:flex;flex-wrap:wrap;gap:8px}.trainer-session{max-width:960px;margin:0 auto}
.trainer-session-top{display:flex;align-items:center;justify-content:space-between;gap:14px}.trainer-session-top p{font-size:14px;margin:4px 0 0}
.trainer-progress{display:block;width:100%;height:5px;border:0;appearance:none;border-radius:4px;overflow:hidden;background:var(--soft);accent-color:var(--accent);margin:20px 0 30px}
.trainer-progress::-webkit-progress-bar{background:var(--soft)}.trainer-progress::-webkit-progress-value{background:var(--accent)}.trainer-progress::-moz-progress-bar{background:var(--accent)}
.trainer-session h2{font-size:23px;margin-bottom:22px;letter-spacing:-.4px}
.trainer-equation{display:flex;align-items:center;flex-wrap:wrap;gap:12px 13px;font-size:24px;line-height:1.65;margin:18px 0;overflow-wrap:anywhere}
.trainer-term{display:inline-block;max-width:100%;overflow-wrap:anywhere}.trainer-equation.as-names{font-size:18px;gap:9px 12px}.trainer-equation.as-names .trainer-term{max-width:100%}
.trainer-operator{color:#7b8c7d;font-size:20px;flex-shrink:0}
.trainer-blank,.trainer-answer-space{display:inline-flex;align-items:center;justify-content:center;min-width:47px;min-height:44px;border-bottom:2px solid #a2b9a3;color:var(--accent);font-size:24px;background:var(--soft);border-radius:5px 5px 0 0;padding:0 9px}
.trainer-condition{color:var(--accent);font-size:14px;margin:12px 0;overflow-wrap:anywhere}.trainer-input-label{margin-top:25px;max-width:760px}
.trainer-input-label input{font-size:18px;padding:13px 14px;min-height:52px}.trainer-input-preview{font-size:20px;overflow-wrap:anywhere;min-height:12px;margin-top:9px;color:var(--muted)}
.trainer-instruction{font-size:13px;color:var(--muted);margin:9px 0;max-width:760px}.trainer-name-question{font-size:28px;line-height:1.45;margin:18px 0 22px;overflow-wrap:anywhere}
.trainer-coefficient{display:inline-flex;align-items:center;gap:7px;max-width:100%}.trainer-coefficient input{width:62px;padding:7px 4px;border:1px solid #b1c5b1;border-radius:6px;color:var(--accent);background:#f5f8f1;font:inherit;font-size:20px;text-align:center;min-height:46px}.trainer-coefficient input::placeholder{color:#95a894}
.trainer-feedback{font-size:14px;line-height:1.6;overflow-wrap:anywhere}.trainer-feedback:empty{display:none}.trainer-feedback.success,.trainer-feedback.error{margin-top:22px;padding:13px 15px;border-radius:6px}.trainer-feedback.success{background:#edf5e9;color:#28563b}.trainer-feedback.error{background:#fbf2ea;color:#89491d}
.trainer-answer{margin-top:25px;border-top:1px solid var(--line);padding-top:21px}.trainer-answer h3{font-size:14px;font-weight:500;color:var(--muted)}.trainer-answer .trainer-equation{margin-top:12px}.trainer-answer-names{font-size:16px;line-height:1.8;margin-bottom:15px}.trainer-answer .plain-link{font-size:13px}
.trainer-actions{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:27px}
.trainer-summary{max-width:660px;margin:0 auto;padding:32px}.trainer-summary h2{font-size:28px;margin:9px 0 12px}.trainer-summary p{font-size:15px;color:var(--muted)}.trainer-summary dl{margin:25px 0;max-width:350px}.trainer-summary dl>div{display:flex;justify-content:space-between;gap:20px;padding:12px 0;border-bottom:1px solid var(--line);font-size:15px}.trainer-summary dd{font-size:18px;font-weight:500;margin:0}
.trainer-panel p{margin-top:5px}.trainer-panel .primary{white-space:nowrap}
.trainer-role-rows{display:grid;gap:12px;margin-top:25px}.trainer-role-row{display:grid;grid-template-columns:minmax(90px,1fr) minmax(0,2fr);gap:18px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}.trainer-role-formula{font-size:21px;overflow-wrap:anywhere}.trainer-role-row select,.trainer-condition-choice select{min-width:0;width:100%;font:inherit;font-size:14px;padding:11px;border:1px solid #bdcbbd;border-radius:6px;background:var(--paper);color:var(--ink);min-height:44px}.trainer-role-answer{display:grid;gap:9px;margin-top:16px;font-size:15px}
.trainer-electronic-rows{display:grid;gap:16px;margin:25px 0 18px}.trainer-electronic-row{display:grid;grid-template-columns:minmax(0,1fr) 90px auto;gap:12px;align-items:end}.trainer-electronic-row .trainer-field input{font-size:16px}.trainer-electronic-row .button{margin-bottom:1px}.trainer-electronic-answer{margin:24px 0}.trainer-electronic-answer h3{margin-bottom:12px;font-size:15px;font-weight:500}.trainer-electronic-answer>div{display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;padding:9px 0;font-size:17px;border-bottom:1px solid var(--line);overflow-wrap:anywhere}.trainer-electronic-answer>div>span:last-child{color:var(--accent);white-space:nowrap}
.trainer-condition-layout{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.4fr);gap:24px;margin-top:25px}.trainer-condition-choices{display:grid;gap:16px;align-content:start}.trainer-condition-choice{display:grid;gap:11px;background:var(--soft);border-radius:7px;padding:15px;font-size:15px;overflow-wrap:anywhere}.trainer-condition-equations{display:grid;gap:18px;align-content:start}.trainer-condition-equations>div{padding-bottom:15px;border-bottom:1px solid var(--line)}.trainer-condition-equations strong{font-size:13px;font-weight:500;color:var(--muted)}.trainer-condition-equations .trainer-equation{font-size:19px;gap:7px 8px;margin:10px 0 0}
.trainer-memo-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:24px}.trainer-memo-card{min-width:0;min-height:105px;border:1px solid #c4d2bd;border-radius:9px;background:var(--soft);color:var(--accent);font:inherit;font-size:17px;padding:14px 11px;overflow-wrap:anywhere;cursor:pointer;line-height:1.5}.trainer-memo-card>span{font-size:28px}.trainer-memo-card.is-open{background:var(--paper);border-color:var(--accent);color:var(--ink)}.trainer-memo-card.is-matched{background:#edf5e9;border-color:#83a37b;color:#2c5936;cursor:default}.trainer-memo-card:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.trainer-memo-card:disabled{opacity:1}
@media(max-width:750px){.trainer-condition-layout{grid-template-columns:1fr}.trainer-electronic-row{grid-template-columns:minmax(0,1fr) 78px}.trainer-electronic-row .button{grid-column:1/-1;justify-self:start}.trainer-memo-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:500px){.trainer-role-row{grid-template-columns:1fr;gap:10px}.trainer-role-row select{font-size:16px}.trainer-memo-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.trainer-memo-card{min-height:100px;font-size:16px;padding:11px 9px}.trainer-electronic-row{grid-template-columns:minmax(0,1fr) auto;gap:10px}.trainer-electronic-row .trainer-field{font-size:12px}.trainer-electronic-row .trainer-field:first-child{grid-column:1/-1}.trainer-electronic-row .trainer-field:nth-child(2){max-width:100px}.trainer-electronic-row .button{grid-column:auto;justify-self:end}.trainer-electronic-row .trainer-field input{padding:10px 8px}.trainer-electronic-answer>div{font-size:15px}.trainer-condition-choice{font-size:14px}.trainer-condition-equations .trainer-equation{font-size:17px}}
@media(max-width:1000px){.trainer-modes{grid-template-columns:repeat(2,minmax(0,1fr))}.top-nav{gap:19px}.trainer-equation{font-size:22px}}
@media(max-width:600px){.trainer-settings{gap:15px}.trainer-modes{grid-template-columns:1fr}.trainer-mode{padding:14px}.trainer-mode small{margin-top:4px}.trainer-mode strong{font-size:15px}.trainer-fields{grid-template-columns:1fr;gap:17px}.trainer-start{align-items:stretch;flex-direction:column}.trainer-start .button{justify-content:center}.trainer-session{padding:20px 16px}.trainer-session h2{font-size:21px}.trainer-session-top{align-items:flex-start}.trainer-session-top .eyebrow{font-size:9px;letter-spacing:1px}.trainer-progress{margin:19px 0 24px}.trainer-equation{font-size:21px;gap:10px 9px}.trainer-equation.as-names{font-size:16px;gap:8px}.trainer-name-question{font-size:24px}.trainer-coefficient{gap:5px}.trainer-coefficient input{width:53px;font-size:18px}.trainer-actions{gap:9px}.trainer-actions .button{flex:1 1 auto;justify-content:center}.trainer-feedback{font-size:13px}.trainer-summary{padding:24px 20px}.trainer-summary h2{font-size:25px}.trainer-panel{align-items:flex-start;flex-wrap:wrap}.trainer-entry-actions{width:100%}.section-heading:has(.trainer-entry-actions){flex-wrap:wrap}.top-nav{gap:12px}}