.dm-hero-visual{z-index:1;flex-direction:column;align-items:center;display:flex;position:relative}.dm-hero-label{letter-spacing:.13em;text-transform:uppercase;color:#ffffff59;text-align:center;margin-bottom:16px;font-size:.7rem;font-weight:700}.dm-math-grid{grid-template-columns:1fr 1fr;gap:8px;width:220px;display:grid}.dm-math-chip{text-align:center;background:#ffffff0a;border:1px solid #ffffff1a;border-radius:12px;flex-direction:column;align-items:center;gap:6px;padding:14px 10px;display:flex}.dm-math-chip-val{font-family:var(--font-display), "Instrument Serif", Georgia, serif;font-size:1.4rem;line-height:1}.dm-math-chip span:last-child{letter-spacing:.05em;text-transform:uppercase;color:#ffffff80;font-size:.6rem;font-weight:700;line-height:1.3}@media (max-width:860px){.dm-hero-visual{align-items:flex-start}}.dm-principle{background:var(--forest);color:#fff;border-radius:20px;margin-top:28px;padding:36px 40px;position:relative;overflow:hidden}.dm-principle:before{content:"";pointer-events:none;background:radial-gradient(circle,#c4933a4d,#0000 60%);border-radius:50%;width:200px;height:200px;position:absolute;top:-60px;right:-30px}.dm-principle p{z-index:1;font-family:var(--font-display), "Instrument Serif", Georgia, serif;font-size:clamp(1.3rem,2.6vw,1.8rem);line-height:1.3;position:relative}.dm-principle p em{color:var(--gold);font-style:italic}.dm-principle .dm-pr-sub{font-family:var(--font-body), "DM Sans", sans-serif;color:#ffffffb3;max-width:600px;margin-top:16px;font-size:.98rem;line-height:1.6}.dm-techniques{flex-direction:column;gap:14px;margin-top:32px;display:flex}.dm-technique{background:var(--card);border:1px solid var(--border);transition:border-color var(--t), box-shadow var(--t);border-radius:14px;overflow:hidden}.dm-technique.open{box-shadow:var(--shadow-soft);border-color:#1c3d2e38}.dm-tech-head{cursor:pointer;transition:background var(--t);align-items:flex-start;gap:16px;padding:22px 24px;display:flex}.dm-tech-head:hover{background:#1c3d2e05}.dm-technique.open .dm-tech-head{background:linear-gradient(180deg, var(--forest-light) 0%, var(--card) 100%)}.dm-tech-num{background:var(--forest);color:#fff;width:34px;height:34px;font-family:var(--font-display), "Instrument Serif", Georgia, serif;transition:background var(--t), color var(--t);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:1.1rem;display:inline-flex}.dm-technique.open .dm-tech-num{background:var(--gold);color:#231a14}.dm-tech-content{flex:1;min-width:0}.dm-tech-content h4{font-family:var(--font-body), "DM Sans", sans-serif;color:var(--ink);margin:4px 0 6px;font-size:1.05rem;font-weight:700;line-height:1.35}.dm-tech-content p.dm-tech-preview{color:var(--muted);font-size:.92rem;line-height:1.5}.dm-tech-chev{width:20px;height:20px;color:var(--muted);transition:transform .4s cubic-bezier(.2,.7,.2,1), color var(--t);flex-shrink:0;margin-top:6px}.dm-technique.open .dm-tech-chev{color:var(--forest);transform:rotate(180deg)}.dm-tech-reveal{max-height:0;transition:max-height .55s cubic-bezier(.2,.7,.2,1);overflow:hidden}.dm-technique.open .dm-tech-reveal{max-height:1200px}.dm-tech-inner{padding:0 24px 24px}.dm-tech-inner p{color:var(--muted);font-size:.96rem;line-height:1.65}.dm-tech-inner p em{color:var(--forest);font-style:italic}.dm-tech-inner p strong{color:var(--ink)}.dm-math-ex{background:var(--forest-light);color:var(--forest);border:1px solid #1c3d2e1f;border-radius:12px;margin:14px 0;padding:16px 20px;font-family:SF Mono,Fira Code,monospace;font-size:.9rem;line-height:1.7}.dm-math-ex .dm-arr{color:var(--gold);font-weight:700}.dm-math-ex .dm-result{color:var(--forest);font-weight:700}.dm-frac-table{border-collapse:separate;border-spacing:0;border:1px solid var(--border);background:var(--card);border-radius:12px;width:100%;margin:14px 0;overflow:hidden}.dm-frac-table thead th{background:var(--forest);color:#fff;letter-spacing:.06em;text-transform:uppercase;text-align:left;padding:10px 16px;font-size:.78rem;font-weight:700}.dm-frac-table tbody td{color:var(--ink);border-bottom:1px solid var(--border);padding:10px 16px;font-size:.92rem}.dm-frac-table tbody tr:last-child td{border-bottom:none}.dm-frac-table tbody td:first-child{color:var(--forest);font-weight:700}.dm-frac-table tbody td:nth-child(2){color:var(--gold);font-weight:600}.dm-freezes{flex-direction:column;gap:14px;margin-top:32px;display:flex}.dm-freeze{background:var(--card);border:1px solid var(--border);transition:border-color var(--t), box-shadow var(--t);border-radius:14px;overflow:hidden}.dm-freeze.open{box-shadow:var(--shadow-soft);border-color:#1c3d2e38}.dm-frz-head{cursor:pointer;transition:background var(--t);align-items:flex-start;gap:16px;padding:22px 24px;display:flex}.dm-frz-head:hover{background:#1c3d2e05}.dm-freeze.open .dm-frz-head{background:linear-gradient(180deg, #fbe7e3 0%, var(--card) 100%)}.dm-frz-ico{color:#e07a5f;background:#e07a5f1f;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:1.1rem;display:inline-flex}.dm-frz-body{flex:1;min-width:0}.dm-frz-body h4{font-family:var(--font-body), "DM Sans", sans-serif;color:var(--ink);margin:4px 0 6px;font-size:1.05rem;font-weight:700;line-height:1.35}.dm-frz-body p.dm-frz-preview{color:var(--muted);font-size:.92rem;line-height:1.5}.dm-frz-chev{width:20px;height:20px;color:var(--muted);transition:transform .4s cubic-bezier(.2,.7,.2,1), color var(--t);flex-shrink:0;margin-top:6px}.dm-freeze.open .dm-frz-chev{color:#e07a5f;transform:rotate(180deg)}.dm-frz-reveal{max-height:0;transition:max-height .55s cubic-bezier(.2,.7,.2,1);overflow:hidden}.dm-freeze.open .dm-frz-reveal{max-height:1000px}.dm-frz-inner{padding:0 24px 24px}.dm-frz-inner p{color:var(--muted);font-size:.96rem;line-height:1.65}.dm-frz-inner p em{color:var(--forest);font-style:italic}.dm-frz-wrong{color:#c0392b;background:#e07a5f14;border:1px solid #e07a5f26;border-radius:10px;margin-top:10px;padding:12px 16px;font-size:.88rem;font-weight:500;line-height:1.5}.dm-frz-right{color:#1a6b43;background:#1f8a5b0f;border:1px solid #1f8a5b26;border-radius:10px;margin-top:10px;padding:12px 16px;font-size:.88rem;font-weight:500;line-height:1.5}.dm-dodont{border-collapse:separate;border-spacing:0;border:1px solid var(--border);background:var(--card);border-radius:14px;width:100%;margin-top:32px;overflow:hidden}.dm-dodont thead th{letter-spacing:.06em;text-transform:uppercase;text-align:left;padding:14px 20px;font-size:.82rem;font-weight:700}.dm-dodont thead th:first-child{color:#fff;background:#1f8a5b}.dm-dodont thead th:last-child{color:#fff;background:#c0392b}.dm-dodont tbody td{color:var(--ink);border-bottom:1px solid var(--border);vertical-align:top;width:50%;padding:12px 20px;font-size:.94rem;line-height:1.5}.dm-dodont tbody tr:last-child td{border-bottom:none}.dm-dodont tbody td:first-child{color:#1a6b43}.dm-dodont tbody td:last-child{color:#8d2c20}.dm-exercises{flex-direction:column;gap:14px;margin-top:32px;display:flex}.dm-exercise{background:var(--card);border:1px solid var(--border);transition:border-color var(--t), box-shadow var(--t);border-radius:14px;overflow:hidden}.dm-exercise.open{box-shadow:var(--shadow-soft);border-color:#1c3d2e38}.dm-ex-head{cursor:pointer;transition:background var(--t);align-items:flex-start;gap:16px;padding:22px 24px;display:flex}.dm-ex-head:hover{background:#1c3d2e05}.dm-exercise.open .dm-ex-head{background:linear-gradient(180deg, var(--forest-light) 0%, var(--card) 100%)}.dm-ex-num{background:var(--gold-light);width:34px;height:34px;color:var(--gold);font-family:var(--font-display), "Instrument Serif", Georgia, serif;transition:background var(--t), color var(--t);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:1.1rem;font-weight:400;display:inline-flex}.dm-exercise.open .dm-ex-num{background:var(--gold);color:#231a14}.dm-ex-content{flex:1;min-width:0}.dm-ex-content h4{font-family:var(--font-body), "DM Sans", sans-serif;color:var(--ink);margin:4px 0 0;font-size:1.04rem;font-weight:600;line-height:1.35}.dm-ex-chev{width:20px;height:20px;color:var(--muted);transition:transform .4s cubic-bezier(.2,.7,.2,1), color var(--t);flex-shrink:0;margin-top:6px}.dm-exercise.open .dm-ex-chev{color:var(--gold);transform:rotate(180deg)}.dm-ex-reveal{max-height:0;transition:max-height .55s cubic-bezier(.2,.7,.2,1);overflow:hidden}.dm-exercise.open .dm-ex-reveal{max-height:1000px}.dm-ex-inner{padding:0 24px 24px}.dm-ex-inner p{color:var(--muted);font-size:.94rem;line-height:1.6}.dm-ex-inner p strong{color:var(--ink)}.dm-ex-inner p em{color:var(--forest);font-style:italic}.dm-real-test{background:var(--gold-light);border:1px dashed #c4933a59;border-radius:16px;align-items:flex-start;gap:16px;margin-top:32px;padding:28px 32px;display:flex}.dm-rt-ico{flex-shrink:0;margin-top:2px;font-size:1.4rem}.dm-real-test p{color:#6f5320;font-size:.98rem;line-height:1.6}.dm-real-test p strong{color:var(--ink)}.dm-real-test p em{font-style:italic}