@font-face{font-family:Phenomena;src:local('Phenomena')} :root{--green:#55a577;--dark:#397d55;--ink:#193027;--muted:#64756c;--paper:#f5f8f5;--line:#d8e4da;--bad:#bb4545}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:18px/1.25 Phenomena,Arial,sans-serif}header{height:70px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:13px;padding:0 max(20px,calc((100% - 1220px)/2));position:sticky;top:0;z-index:10}.header-back{width:36px;height:36px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--dark);font:24px/1 Arial;cursor:pointer}#brand{color:var(--dark);font-size:22px;font-weight:700;text-decoration:none}#crumb{margin-left:auto;color:var(--muted)}main{max-width:1220px;margin:auto;padding:40px 20px}.welcome{max-width:1000px;margin:7vh auto}.eyebrow{margin:0 0 6px;color:var(--dark);font-size:14px;font-weight:700;letter-spacing:.09em;text-transform:uppercase}h1{font-size:42px;line-height:1;margin:0}.lead{margin:13px 0 18px;color:var(--muted);font-size:23px}.landing-copy{max-width:760px;margin:0 0 18px;color:#52645a;font-size:20px}.benefits{display:flex;gap:9px;flex-wrap:wrap;margin:0 0 18px}.benefits span{padding:8px 11px;border-radius:8px;background:#e4f2e8;color:var(--dark);font-size:15px;font-weight:700}.progress-card{max-width:510px;margin:0 0 22px;padding:14px 16px;border:1px solid var(--line);border-radius:10px;background:#fff}.progress-card strong,.progress-card small{display:block}.progress-card small{margin-top:6px;color:var(--muted);font-size:15px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.cards.modes{margin-top:34px}.choice{min-height:205px;padding:25px;text-align:left;border:1px solid var(--line);border-radius:16px;background:#fff;color:var(--ink);font:inherit;cursor:pointer;transition:.15s transform,.15s box-shadow}.choice:hover,.choice:focus-visible{transform:translateY(-3px);box-shadow:0 9px 24px #397d5520;border-color:var(--green)}.choice b,.choice small{display:block}.choice b{margin-top:20px;font-size:27px}.choice small{margin-top:7px;color:var(--muted);font-size:17px}.choice i{display:grid;place-items:center;width:43px;height:43px;border-radius:50%;background:#e4f2e8;color:var(--dark);font-style:normal;font-weight:700;font-size:22px}.mode-primary{background:#f4fbf6;border-color:var(--green)}.mode-badge{display:inline-block;padding:4px 7px;border-radius:5px;background:var(--green);color:#fff;font-size:13px;font-weight:700}.trust-note{max-width:760px;margin:22px 0 0;padding:13px 15px;border-left:3px solid var(--green);background:#fff;color:#52645a;font-size:16px}.workstation{display:grid;grid-template-columns:minmax(440px,1.05fr) minmax(400px,.95fr);gap:22px;align-items:start}.ecg-stack{position:sticky;top:85px}.trainer-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:14px}.trainer-head h1{font-size:34px}.case-control{font-size:16px;font-weight:700}.case-control select{display:block;margin-top:5px}.ecg-panel{background:#28352d;border-radius:16px;overflow:hidden;box-shadow:0 2px 8px #173f2317}.ecg-bar{height:50px;background:#fff;display:flex;justify-content:space-between;align-items:center;padding:0 15px}.ecg-bar button{border:1px solid var(--line);border-radius:7px;background:#fff;color:var(--dark);font:inherit;font-weight:700;cursor:pointer;padding:4px 8px}.ecg-bar>div{display:flex;align-items:center;gap:7px}.ecg-bar span{min-width:45px;text-align:center;color:var(--muted);font-size:15px}.ecg-canvas{overflow:hidden;line-height:0}.ecg-canvas img{display:block;width:100%;height:auto;transform-origin:top left;transition:transform .12s}.report-panel{background:#fff;border:1px solid var(--line);border-radius:16px;padding:25px}.report-head{display:flex;align-items:center;gap:16px}.report-head>div{margin-right:auto}.report-head h2{margin:0;font-size:28px}.check-button,.next-button{background:var(--green);border:0;color:#fff;border-radius:9px;padding:11px 17px;font:inherit;font-weight:700;cursor:pointer}.check-bottom{display:block;margin:24px 0 0 auto}.hint{color:var(--muted);margin:17px 0;font-size:16px}.form-progress{margin:0 0 12px;color:var(--dark);font-weight:700}.field{border:0;border-top:1px solid var(--line);margin:0;padding:19px 0}.field.invalid,.field.correct{border-radius:10px;padding:19px 14px;margin:0 -14px}.field.invalid{border-top-color:var(--bad);box-shadow:inset 0 0 0 3px var(--bad);background:#fff8f8}.field.correct{border-top-color:var(--green);background:#f4fbf6}.field legend{padding:0;font-size:19px;font-weight:700}.options{display:grid;gap:8px;margin-top:11px}.option{display:flex;gap:9px;align-items:flex-start;cursor:pointer}.option input{margin-top:4px;accent-color:var(--green)}.option input:disabled{opacity:1}.option:has(input:disabled){cursor:default}.option input[type="checkbox"]{appearance:none;width:17px;height:17px;flex:0 0 17px;border:2px solid #748078;border-radius:50%;background:#fff}.option input[type="checkbox"]:checked{border-color:var(--dark);background:radial-gradient(circle,var(--green) 0 45%,transparent 48%)}.answer-picked span{background:var(--bad);color:#fff;border-radius:4px;padding:2px 5px}.answer-correct span{background:#e4f2e8;color:var(--dark);border-radius:4px;padding:2px 5px;font-weight:700}.feedback-label{display:inline-block;margin:5px 0 0 8px;font-size:13px;font-weight:700}.answer-picked .feedback-label{color:var(--bad)}.answer-correct .feedback-label{color:var(--dark)}.multi-select-note{display:block;margin-top:5px;color:var(--muted);font-size:14px;font-weight:400}.notice{font-weight:700;margin:16px 0 0}.notice.error{color:var(--bad)}.notice.success,#score{color:var(--dark)}.next-button{margin-top:12px}select{border:1px solid #bbcebf;border-radius:8px;padding:8px;background:#fff;color:var(--ink);font:inherit}@media(max-width:900px){.workstation{grid-template-columns:1fr}.ecg-stack{position:static}.report-panel{margin-top:14px}}@media(max-width:700px){body{font-size:17px}header{height:58px;padding:0 14px}#brand{font-size:16px;line-height:1.1}#crumb{display:none}main{padding:25px 12px}.welcome{margin:3vh 0}h1{font-size:33px}.lead{font-size:20px}.landing-copy{font-size:18px}.benefits{display:grid;grid-template-columns:1fr}.cards{grid-template-columns:1fr}.choice{min-height:135px;padding:18px}.choice b{margin-top:12px;font-size:24px}.trainer-head{align-items:flex-start;flex-direction:column}.trainer-head h1{font-size:29px}.ecg-bar>div{display:none}.ecg-canvas img{transform:none!important}.report-panel{padding:16px}.report-head{align-items:flex-start;flex-wrap:wrap}.report-head h2{font-size:24px}.check-button{margin-left:auto}.field{padding:16px 0}.field legend{font-size:18px}.field.invalid,.field.correct{padding:16px 12px;margin:0 -12px}}