@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap");:root{--primary:#2563eb;--primary-dark:#1e3a5f;--primary-light:#dbeafe;--primary-bg:#eff6ff;--accent:#d97706;--accent-light:#fef3c7;--success:#059669;--success-light:#ecfdf5;--danger:#dc2626;--danger-light:#fef2f2;--warning:#f59e0b;--warning-light:#fffbeb;--info:#0891b2;--info-light:#ecfeff;--bg:#f8fafc;--card:#fff;--text:#1e293b;--text-secondary:#475569;--muted:#64748b;--subtle:#94a3b8;--border:#e2e8f0;--surface-2:#f1f5f9;--text-xs:11px;--text-sm:12px;--text-base:14px;--text-md:16px;--text-lg:18px;--text-xl:22px;--text-2xl:28px;--text-3xl:36px;--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:32px;--space-2xl:48px;--space-3xl:64px;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--radius-full:9999px;--radius:14px;--shadow-sm:0 1px 2px rgba(0,0,0,.05);--shadow:0 2px 8px rgba(0,0,0,.08);--shadow-md:0 4px 16px rgba(0,0,0,.1);--shadow-lg:0 8px 32px rgba(0,0,0,.12);--shadow-glow-blue:0 0 20px rgba(37,99,235,.15);--shadow-glow-gold:0 0 20px rgba(217,119,6,.15);--ring:0 0 0 3px rgba(37,99,235,.18)}[data-theme=dark]{--primary:#60a5fa;--primary-dark:#1e3a5f;--primary-light:rgba(96,165,250,.15);--primary-bg:rgba(37,99,235,.08);--accent:#fbbf24;--accent-light:rgba(251,191,36,.1);--success:#34d399;--success-light:rgba(52,211,153,.1);--danger:#f87171;--danger-light:hsla(0,91%,71%,.1);--warning:#fbbf24;--warning-light:rgba(251,191,36,.1);--info:#22d3ee;--info-light:rgba(34,211,238,.1);--bg:#0f172a;--card:#1e293b;--text:#e2e8f0;--text-secondary:#cbd5e1;--muted:#94a3b8;--subtle:#64748b;--border:#334155;--shadow:0 2px 16px rgba(0,0,0,.3);--shadow-lg:0 8px 32px rgba(0,0,0,.4);--ring:0 0 0 3px rgba(96,165,250,.25);--surface-2:#1e293b}[data-theme=dark] 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var(--primary);color:var(--primary)}.btn-outline:hover{background:var(--primary-light)}.btn-white{background:#fff;color:var(--primary);border:2px solid #fff}.btn-white:hover{background:#f0f0ff}.btn-ghost{background:hsla(0,0%,100%,.15);color:#fff;border:2px solid hsla(0,0%,100%,.3)}.btn-ghost:hover{background:hsla(0,0%,100%,.25)}.btn-danger{background:var(--danger);color:#fff}.btn-lg{padding:15px 32px;font-size:1rem;border-radius:12px}.btn-sm{padding:8px 16px;font-size:.8rem;border-radius:8px}.btn-block{width:100%;justify-content:center}.btn:focus-visible{outline:none;box-shadow:var(--ring)}.btn.disabled,.btn[disabled]{opacity:.62;cursor:not-allowed;transform:none!important;box-shadow:none!important}.form-group{margin-bottom:18px}.form-label{display:block;font-size:.82rem;font-weight:700;color:var(--text);margin-bottom:6px}.form-input{width:100%;padding:14px 16px;border:2px solid var(--border);border-radius:16px;font-size:.9rem;outline:none;transition:border 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span{color:var(--accent)}.lp-nav-links{display:flex;gap:6px;align-items:center}.lp-link{font-size:.85rem;font-weight:600;color:var(--muted);padding:8px 12px;transition:color .15s}.lp-link:hover{color:var(--primary)}.hero{background:linear-gradient(135deg,var(--primary-dark) 0,var(--primary) 50%,#7c3aed 100%);color:#fff;padding:clamp(72px,9vw,96px) 20px clamp(84px,10vw,104px);position:relative;overflow:hidden}.hero:before{content:"";position:absolute;top:-40%;left:-10%;width:120%;height:200%;background:radial-gradient(ellipse at 30% 40%,hsla(0,0%,100%,.07) 0,transparent 60%)}.hero-inner{max-width:760px;margin:0 auto;position:relative}.hero-badge{display:inline-flex;align-items:center;gap:8px;background:hsla(0,0%,100%,.14);border:1px solid hsla(0,0%,100%,.22);border-radius:30px;padding:8px 16px;font-size:.78rem;font-weight:700;margin-bottom:24px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);letter-spacing:.02em}.hero h1{font-size:clamp(2.3rem,5.8vw,4.1rem);font-weight:900;line-height:1.03;margin-bottom:18px;letter-spacing:-1px}.hero h1 span{color:#d1fae5}.hero p{font-size:1.06rem;opacity:.94;line-height:1.7;margin-bottom:34px;max-width:580px;margin-left:auto;margin-right:auto;text-align:center}.hero-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:32px}.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:14px;gap:14px;align-items:stretch}.hero-stat{padding:18px 14px;border-radius:20px;background:hsla(0,0%,100%,.11);border:1px solid hsla(0,0%,100%,.14);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);text-align:center}.hero-stat .num{font-size:1.3rem;font-weight:900;color:#fff;margin-bottom:5px}.hero-stat .lbl{font-size:.78rem;opacity:.82}.section{padding:clamp(64px,7vw,92px) 20px}.section-center{text-align:center;max-width:760px;margin:0 auto 56px}.section-label{font-size:.75rem;font-weight:800;color:var(--primary);text-transform:uppercase;letter-spacing:1.5px;margin-bottom:14px}.section h2{font-size:clamp(1.9rem,4vw,3rem);font-weight:900;line-height:1.2;letter-spacing:-.04em;margin-bottom:14px}.section h2 span{color:var(--primary)}.section p{color:var(--muted);line-height:1.8;font-size:1rem}#app-shell{min-height:100vh;display:flex;flex-direction:column}.app-header{box-shadow:var(--shadow);padding:0;position:-webkit-sticky;position:sticky;top:0;z-index:100}.app-header,.app-header-inner{background:var(--primary-dark)}.app-header-inner{max-width:1200px;margin:0 auto;min-height:64px;border-radius:0;box-shadow:none;padding:0 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0}.mnemonic-title{font-weight:800;font-size:.9rem;color:#92400e;margin-bottom:8px}.mnemonic-text{font-size:.88rem;color:#78350f;line-height:1.65;font-weight:600}.mnemonic-detail{font-size:.82rem;color:#92400e;margin-top:8px;line-height:1.6}.key-point{display:flex;gap:10px;align-items:flex-start;background:var(--success-light);border:1px solid rgba(5,150,105,.2);border-radius:12px;padding:12px 14px;margin:10px 0;font-size:.85rem;line-height:1.6}.key-point .icon{font-size:1.1rem;flex-shrink:0}.warning-point{background:var(--warning-light);border-color:rgba(217,119,6,.25)}.dummies-box{background:linear-gradient(135deg,#ede9fe,#e0e7ff);border:1.5px solid #6366f1;border-radius:16px;padding:18px 20px;margin:14px 0}.dummies-title{font-weight:800;font-size:.92rem;color:#3730a3;margin-bottom:10px}.dummies-body{font-size:.88rem;color:#4338ca;line-height:1.7}.dummies-scenario{background:hsla(0,0%,100%,.7);border-radius:12px;padding:12px 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cubic-bezier(.4,0,.2,1)}.fc-inner.flipped{transform:rotateY(180deg)}.fc-face{position:absolute;width:100%;min-height:260px;-webkit-backface-visibility:hidden;backface-visibility:hidden;border-radius:28px;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:28px;text-align:center}.fc-front{background:linear-gradient(135deg,#4f46e5,#6d7cff 55%,#0ea5a4)}.fc-back{background:linear-gradient(135deg,#065f46,#10b981 60%,#0284c7);transform:rotateY(180deg)}.fc-term{font-size:1.3rem;font-weight:800;color:#fff;max-width:420px;line-height:1.3}.fc-hint{font-size:.76rem;color:hsla(0,0%,100%,.75);margin-top:12px}.fc-def{font-size:.94rem;line-height:1.75;color:#fff;max-width:430px;white-space:pre-line}.fc-nav{display:flex;gap:12px;justify-content:center;margin-top:18px;flex-wrap:wrap}.results-wrap{background:linear-gradient(180deg,#fff,#fbfdff);border:1px solid rgba(148,163,184,.22);border-radius:24px;padding:28px;box-shadow:var(--shadow);text-align:center}.panel-title{font-size:1.3rem;font-weight:800;margin-bottom:6px}.panel-subtext{color:var(--muted);font-size:.85rem;margin-bottom:20px}.subpanel-title{font-size:.95rem;font-weight:800;margin-bottom:16px;color:var(--primary-dark)}.section-title-lite{font-size:1.3rem;font-weight:800;margin-bottom:20px}@keyframes spinRing{to{transform:rotate(1turn)}}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:200px;gap:16px}.loading-fullscreen{min-height:100vh;min-height:100dvh;background:var(--bg)}.loading-spinner{width:40px;height:40px;border:4px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spinRing .8s linear 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