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b{display:block;font-size:calc(14px + var(--font-bump));margin:4px 0}.term-mini-grid p{font-size:calc(12px + var(--font-bump));line-height:1.55;color:var(--muted);margin:0}.term-language-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:13px}.term-language-grid article{padding:16px;border:1px solid var(--line);border-radius:16px;background:#ffffff09}.term-language-grid p{font-size:calc(15px + var(--font-bump));line-height:1.7;color:#e4ebfa}.term-symbol{margin-top:10px;padding:14px;border-radius:15px;background:linear-gradient(135deg,#ffd16317,#6f8fff17);border:1px solid rgba(255,209,99,.18)}.term-symbol b{display:block;font-size:calc(23px + var(--font-bump));margin-top:4px;color:#fff0ac}.term-example,.example-takeaway{margin-top:10px;padding:14px 16px;border-radius:15px;background:#59e0ac12;border:1px solid rgba(89,224,172,.19)}.term-example p,.example-takeaway p{font-size:calc(14px + var(--font-bump));line-height:1.65;margin:5px 0 0;color:#d5f5e8}.example-steps{display:grid;gap:8px;margin-top:13px}.example-steps article{display:grid;grid-template-columns:38px 1fr;align-items:center;gap:10px;padding:12px;border-radius:14px;background:#ffffff09;border:1px solid var(--line)}.example-steps b{width:32px;height:32px;display:grid;place-items:center;border-radius:10px;background:linear-gradient(145deg,#647fff,#9c68ff)}.example-steps span{font-size:calc(14px + var(--font-bump));line-height:1.55}@media(max-width:820px){.concept-support-strip{grid-template-columns:1fr 1fr}.concept-support-strip>div{grid-column:1/-1}.lesson-grid,.term-language-grid,.term-mini-grid,.mastery-summary{grid-template-columns:1fr}.extreme-bars{overflow-x:auto}.concept-coach{padding:18px}.coach-head{padding-right:36px}}@media(max-width:560px){.diagnostic-options,.concept-support-strip{grid-template-columns:1fr}.concept-support-strip>div{grid-column:auto}.coach-tabs{display:grid;grid-template-columns:1fr 1fr}.coach-actions.end button{width:100%}.machine-flow{gap:4px}.machine-flow span{min-width:44px;height:44px}.demo-sequence button{min-width:75px}}.user-chip{display:flex;flex-direction:column;align-items:center;gap:2px;min-width:86px;padding:6px 12px;border-radius:12px;background:#6f91ff1f;border:1px solid rgba(138,168,255,.32);line-height:1.2}.user-chip b{font-size:calc(13px + var(--font-bump));color:#fff;max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-chip span{font-size:calc(10px + var(--font-bump));color:#b9caff}.user-chip.offline{border-color:#ff7d9959;background:#ff7d9914}.user-chip.offline span{color:#ffb8c7}.user-modal{width:min(520px,100%);max-height:92vh;overflow:auto;position:relative;border:1px solid rgba(153,184,255,.28);border-radius:24px;background:linear-gradient(145deg,#0b1b39,#181940);box-shadow:0 36px 120px #000000b3;padding:30px;text-align:center}.user-modal h2{font-size:calc(26px + var(--font-bump));margin:8px 0 6px}.user-modal .lead{font-size:calc(14px + var(--font-bump));color:#c8d4e9;line-height:1.7;margin:0 0 18px}.user-input{width:100%;padding:14px 16px;border-radius:14px;background:#030b19b3;border:1px solid rgba(146,173,255,.4);color:#fff;font-size:calc(17px + var(--font-bump));text-align:center;outline:none}.user-input:focus{border-color:#8fa8ff;box-shadow:0 0 0 3px #718fff26}.known-users{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:14px}.known-users span{font-size:calc(11px + var(--font-bump));color:var(--muted)}.known-user{padding:5px 11px;font-size:calc(12px + var(--font-bump));border-radius:999px;background:#59e0ac14;border-color:#59e0ac40}.user-error{color:#ff9aac;font-size:calc(13px + var(--font-bump));margin:10px 0 0}.user-notice{color:#8fffc8;font-size:calc(12px + var(--font-bump));margin:10px 0 0}.user-actions{display:flex;justify-content:center;gap:12px;margin-top:22px}.user-actions button{min-width:130px;padding:11px 18px}.concept-ask-modal{width:min(560px,100%);position:relative;border:1px solid rgba(255,209,99,.32);border-radius:24px;background:linear-gradient(145deg,#101f3d,#1c1a45);box-shadow:0 36px 120px #000000b8;padding:32px;text-align:center}.concept-ask-modal h2{font-size:calc(24px + var(--font-bump));margin:10px 0 8px;line-height:1.35}.concept-ask-modal .lead{font-size:calc(15px + var(--font-bump));color:#c8d4e9;line-height:1.75;margin:0 0 4px}.concept-ask-modal .lead b{color:#ffe29a}.concept-ask-actions{display:flex;justify-content:center;gap:14px;margin-top:26px;flex-wrap:wrap}.concept-ask-actions button{min-width:170px;padding:13px 20px;font-size:calc(15px + var(--font-bump))}.coach-skip-hint{font-size:calc(12px + var(--font-bump))!important;color:#a8c3ff!important;margin-top:6px!important;padding:7px 11px;border-radius:10px;background:#ffd16312;border:1px solid rgba(255,209,99,.18)}.footer .danger-text{margin-left:14px}