.grammar-lesson-hero{margin:1rem 0 1.2rem;padding:clamp(1.2rem,3vw,2rem);border-radius:24px;background:linear-gradient(120deg,#e8f5ef,#fff3d2);border:1px solid #d9e9de}.grammar-lesson-hero h1{margin:.35rem 0;font-size:clamp(1.8rem,4vw,3rem)}.grammar-lesson-hero h1 small{display:block;color:#47736c;font-size:.52em}.grammar-lesson-hero p{max-width:70ch;color:#34565b;line-height:1.7}.grammar-lesson-tabs{display:flex;gap:.55rem;flex-wrap:wrap;margin:1rem 0}.grammar-lesson-tabs button,.grammar-car-controls button{border:1px solid #c7d9d4;border-radius:14px;background:#fff;padding:.75rem 1rem;color:#173a45;font-weight:750;cursor:pointer}.grammar-lesson-tabs button.is-active{background:#183c45;color:white;border-color:#183c45}.grammar-lesson-columns{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(260px,.8fr);gap:1rem}.grammar-lesson-panel,.grammar-practice-panel,.grammar-game-panel{margin:1rem 0;padding:clamp(1rem,2.5vw,1.5rem);border-radius:20px;background:#fff;border:1px solid #dce7e2;box-shadow:0 10px 30px #193e4510}.grammar-lesson-panel h2,.grammar-practice-panel h2,.grammar-game-panel h2{margin-top:.2rem}.grammar-table-wrap{overflow:auto}.grammar-table{width:100%;border-collapse:collapse;min-width:560px}.grammar-table th,.grammar-table td{text-align:left;vertical-align:top;padding:.75rem;border-bottom:1px solid #e7eeeb;line-height:1.5}.grammar-table tr:first-child{background:#e9f4ef;color:#183c45}.grammar-table tr:first-child th{font-size:.92rem}.grammar-rules{padding-left:1.35rem;line-height:1.75}.grammar-rules li{padding:.25rem 0}.grammar-error-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:.75rem}.grammar-error-card{padding:.8rem 1rem;border-radius:14px;background:#f8faf8;border:1px solid #e4ece8}.grammar-error-card p{margin:.3rem 0;line-height:1.5}.grammar-error-card .wrong{color:#a22c2c}.grammar-error-card .right{color:#167452}.grammar-error-card small{color:#526d72}.grammar-next-actions{display:flex;gap:.65rem;flex-wrap:wrap;margin:1rem 0}.grammar-practice-top,.grammar-game-hud{display:flex;justify-content:space-between;align-items:center;gap:.8rem;flex-wrap:wrap;color:#35575e;font-weight:750}.grammar-practice-panel h2{margin:1.5rem 0}.grammar-choice-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:.7rem}.grammar-choice-grid button{padding:1rem;border:1px solid #cbdcd6;border-radius:14px;background:#f4faf6;font-weight:750;cursor:pointer}.grammar-choice-grid button:disabled{opacity:.7}.grammar-game-panel{overflow:hidden}.grammar-game-hud span{padding:.45rem .7rem;border-radius:999px;background:#e9f5ef}.grammar-game-panel>p{line-height:1.55}.grammar-target-arena{position:relative;height:300px;border-radius:18px;overflow:hidden;background:radial-gradient(ellipse at 50% 120%,#488b6b,#174653 75%);border:6px solid #aac5b8}.grammar-crosshair{position:absolute;left:50%;top:50%;color:#ffffffa8;font-size:2.4rem;transform:translate(-50%,-50%);pointer-events:none}.grammar-moving-target{position:absolute;max-width:40%;padding:.7rem .95rem;border:3px solid #f8d56d;border-radius:50%;background:#fff4c4;color:#173945;font-weight:800;box-shadow:0 5px 0 #9a7641;cursor:crosshair;animation:target-pulse 1s ease-in-out infinite alternate}.grammar-moving-target:hover{background:#fff}.grammar-car-road{position:relative;height:340px;overflow:hidden;border-radius:20px;background:repeating-linear-gradient(90deg,#193f49 0 32.8%,#f6f0dd 33% 33.3%,#193f49 33.5% 66%,#f6f0dd 66.2% 66.5%,#193f49 66.7%);border:6px solid #9ab9ae;touch-action:manipulation}.grammar-lane-mark{position:absolute;inset:0;background:linear-gradient(0deg,#13323a,#28555d);opacity:.45}.grammar-word-rain{position:absolute;inset:0}.grammar-rain-word{position:absolute;top:10%;transform:translate(-50%,-50%);min-width:100px;text-align:center;padding:.65rem .8rem;border-radius:12px;background:#fff5cf;color:#173945;font-weight:800;box-shadow:0 4px 0 #b69050;transition:top .12s linear}.grammar-catch-line{position:absolute;left:0;right:0;bottom:22%;border-top:4px dashed #f1d979}.grammar-player-car{position:absolute;left:50%;bottom:2%;transform:translateX(-50%);font-size:2.6rem;transition:left .16s ease;z-index:2}.grammar-car-controls{display:flex;justify-content:center;gap:.5rem;margin:.75rem 0}.game-feedback.good{color:#12754c;font-weight:800}.game-feedback.bad,.feedback.try{color:#a52828;font-weight:800}.grammar-game-finish{text-align:center}.finish-symbol{display:inline-grid;place-items:center;width:64px;height:64px;border-radius:50%;background:#e6f5eb;color:#178254;font-size:2rem}.grammar-game-finish .button{margin:.5rem}.grammar-race-feedback{position:absolute;z-index:3;left:50%;top:40%;transform:translate(-50%,-50%);font-size:3rem;color:#fff;text-shadow:0 2px 8px #000;pointer-events:none}@keyframes target-pulse{to{box-shadow:0 0 0 7px #f8d56d44,0 5px 0 #9a7641;transform:scale(1.05)}}@media(max-width:760px){.grammar-lesson-columns{grid-template-columns:1fr}.grammar-target-arena{height:260px}.grammar-car-road{height:300px}.grammar-table{min-width:500px}}
.grammar-game-panel [hidden]{display:none!important}

/* Clear comparison tables, explicit part-of-speech highlighting, and tense-color key */
.pronoun-reference-table-wrap{overflow-x:auto;margin:14px 0;border:1px solid #d5e4dc;border-radius:12px;background:#fff}
.pronoun-forms-table{width:100%;min-width:850px;border-collapse:collapse}
.pronoun-forms-table th,.pronoun-forms-table td{padding:10px 12px;text-align:left;vertical-align:middle;border-bottom:1px solid #e2ece6;line-height:1.45}
.pronoun-forms-table thead th{background:#e7f2ec;color:#244e4c;font-size:12px}
.pronoun-forms-table tbody tr:nth-child(even){background:#f8fbf9}
.pronoun-forms-table tbody tr:last-child td{border-bottom:0}
.pronoun-forms-table td:first-child{font-weight:900;color:#146d70;font-size:17px}
.pronoun-form-1{color:#375a94}.pronoun-form-2{color:#79539b}.pronoun-form-3{color:#815c35}.pronoun-form-4{color:#b2495e}
.grammar-lesson-table-stack{display:grid;gap:.75rem;min-width:0}
.grammar-mark{display:inline;padding:.04em .22em;border-radius:.25em;font-weight:850;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.grammar-mark-noun{background:#e6efff;color:#244d89}.grammar-mark-verb{background:#ffe8d8;color:#9b471e}.grammar-mark-adjective{background:#f6e6fa;color:#793b87}.grammar-mark-adverb{background:#fff1c9;color:#765400}.grammar-mark-pronoun{background:#dff4f2;color:#176b68}.grammar-mark-preposition,.grammar-mark-conjunction{background:#e8edf0;color:#405661}.grammar-mark-interjection{background:#ffe3e3;color:#a32e3c}.grammar-mark-subject,.grammar-mark-object,.grammar-mark-complement,.grammar-mark-adverbial{background:#e9f3ed;color:#285a41}
.grammar-mark-single{background:#e4f3e7;color:#17633c}.grammar-mark-plural{background:#e5edff;color:#315d9d}.grammar-mark-base{background:#eef0f2;color:#46505a}
.grammar-mark-present{background:#d9f2df;color:#17643a;border-bottom:2px solid #3a9b5e}.grammar-mark-past{background:#ffebd5;color:#98520d;border-bottom:2px solid #db8a34}.grammar-mark-perfect{background:#e4e8ff;color:#414c9a;border-bottom:2px solid #737fe0}.grammar-mark-future{background:#dff2fb;color:#176485;border-bottom:2px solid #49a4c9}.grammar-mark-modal{background:#f0e2fb;color:#6d328f;border-bottom:2px solid #a067c5}
.grammar-color-legend{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 .75rem;padding:.75rem;border:1px solid #e1e9e4;border-radius:12px;background:#f8fbf9}
.grammar-color-legend span{display:inline-flex;align-items:center;gap:6px;padding:.35rem .5rem;border-radius:8px;background:#fff;color:#34545b;font-size:.8rem;font-weight:750}
.grammar-color-legend i{width:14px;height:14px;padding:0;border-radius:4px;border:1px solid currentColor}
.grammar-table tbody tr:nth-child(even){background:#fbfcfb}
@media(max-width:620px){.pronoun-forms-table{min-width:820px}.grammar-color-legend{gap:6px}}

.grammar-mark-I,.grammar-mark-you,.grammar-mark-we,.grammar-mark-they,.grammar-mark-he,.grammar-mark-she,.grammar-mark-it{background:#dff4f2;color:#176b68}