:root{--bg:#050816;--bg-card:#0f172a;--bg-card-soft:#020617;--accent:#22c55e;--accent-soft:#22c55e1a;--accent-soft-strong:#22c55e2e;--accent-border:#22c55eb3;--text:#e5e7eb;--text-soft:#9ca3af;--border:#94a3b859;--danger:#f97373;--shadow-soft:0 24px 80px #0f172ad9;--radius-lg:18px;--radius-md:12px;--radius-pill:999px;--sans:system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;font-family:var(--sans);color:var(--text);background-color:var(--bg);text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;font-size:16px;line-height:1.5}*,:before,:after{box-sizing:border-box}body{background:radial-gradient(circle at top,#1e293b 0,#020617 52% 100%);min-height:100vh;margin:0}#app{justify-content:center;min-height:100vh;padding:16px 12px 72px;display:flex}.app-root{width:100%;max-width:480px;color:var(--text);flex-direction:column;gap:16px;display:flex}@media (width>=768px){#app{padding:32px 16px 80px}.app-root{max-width:960px}}.app-header{box-shadow:var(--shadow-soft);z-index:10;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:linear-gradient(135deg,#0f172ae6,#0f172a99,#0f172ae6);border:1px solid #94a3b84d;border-radius:24px;padding:16px 18px 6px;position:sticky;top:0}.app-header h1{letter-spacing:.02em;align-items:baseline;gap:6px;margin:0 0 4px;font-size:1.4rem;font-weight:700;display:flex}.app-header h1:after{content:"beta";color:var(--accent);background:#0f172ab3;border:1px solid #22c55e73;border-radius:999px;padding:2px 7px;font-size:.7rem;font-weight:500}.app-subtitle{color:var(--text-soft);margin:0;font-size:.82rem}.app-main{flex-direction:column;flex:1;gap:12px;display:flex}.view{flex-direction:column;gap:12px;display:flex}.card{border-radius:var(--radius-lg);box-shadow:var(--shadow-soft);background:radial-gradient(circle at 0 0,#0b1120 0,#020617 55%);border:1px solid #94a3b859;padding:16px 16px 14px}@media (width>=768px){.card{padding:18px 18px 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0,#22c55e,#16a34a);border:none;justify-content:center;align-items:center;gap:6px;width:100%;margin-top:2px;padding:10px 14px;font-size:.9rem;font-weight:600;transition:transform .12s ease-out,box-shadow .12s ease-out,filter 80ms ease-out;display:inline-flex;box-shadow:0 18px 45px #22c55e80,inset 0 1px #fff3}.primary-button:hover{filter:brightness(1.03);transform:translateY(-1px);box-shadow:0 20px 50px #22c55e99,inset 0 1px #ffffff40}.primary-button:active{transform:translateY(0);box-shadow:0 10px 25px #22c55e73,inset 0 1px #ffffff26}.primary-button:focus-visible{outline-offset:2px;outline:2px solid #22c55ee6}.info-text{color:var(--text-soft);margin-top:8px;font-size:.78rem}.session-date{color:var(--text-soft);margin:0 0 10px;font-size:.82rem}.session-exercise-list{flex-direction:column;gap:10px;margin-bottom:10px;display:flex}.session-exercise{background:linear-gradient(135deg,#1e40af42,#0f172af2);border:1px solid #2563ebb3;border-radius:14px;padding:10px 10px 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6px;font-size:.84rem}.exercise-list-full{flex-direction:column;gap:8px;margin-top:10px;display:flex}.exercise-card{border-radius:var(--radius-md);background:radial-gradient(circle at 0 0,#020617 0 50%);border:1px solid #1e40af8c;padding:10px 10px 8px}.exercise-card-header{justify-content:space-between;align-items:baseline;gap:8px;display:flex}.exercise-media{border:1px solid #1e40af99;border-radius:12px;margin:6px 0;overflow:hidden}.exercise-media img{object-fit:cover;width:100%;max-height:180px;display:block}.exercise-card-header h3{margin:0 0 2px;font-size:.92rem}.exercise-description{color:var(--text-soft);margin:0;font-size:.8rem}.exercise-hint{color:#f4f4f5db;margin:4px 0 0;font-size:.76rem}.exercise-schema{color:var(--accent);margin:6px 0 0;font-size:.78rem}.plan-card{border-radius:var(--radius-md);background:radial-gradient(circle at 0 0,#020617 0 52%);border:1px solid #22c55e8c;padding:10px 10px 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