:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#0f172a;background-color:#0b1120}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at top,#1e293b 0,#020617 55%);display:flex;align-items:center;justify-content:center}.tool-root{width:100%;padding:24px;display:flex;justify-content:center;align-items:center;min-height:100vh}.tool-card{width:100%;max-width:600px;height:700px;max-height:90vh;display:flex;flex-direction:column;background:#0f172af2;border-radius:24px;padding:32px;box-shadow:0 24px 60px #00000080,0 0 0 1px #94a3b826;color:#e5e7eb;position:relative;overflow:hidden}.tool-header{text-align:center;margin-bottom:20px;flex-shrink:0;position:relative}.tool-header h1{margin:0 0 8px;font-size:.9rem;text-transform:uppercase;letter-spacing:.1em;color:#9ca3af;font-weight:600;opacity:.8;line-height:1.6;white-space:pre-line}.session-badge{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:#38bdf81a;border:1px solid rgba(56,189,248,.2);color:#7dd3fc;padding:6px 16px;border-radius:12px;font-size:.9rem;font-weight:600;margin-bottom:20px;letter-spacing:.02em;animation:fadeIn .8s ease-out}.tool-main{flex:1;display:flex;flex-direction:column;justify-content:flex-start;position:relative;overflow-y:auto;padding:0 4px 20px;scrollbar-width:none}.tool-main::-webkit-scrollbar{display:none}.tool-step-title{font-size:1.8rem;font-weight:700;text-align:center;margin-bottom:16px;line-height:1.3;color:#f8fafc;margin-top:auto}.tool-description{font-size:1.1rem;line-height:1.6;color:#cbd5e1;text-align:center;margin-bottom:24px;max-width:90%;margin-left:auto;margin-right:auto;white-space:pre-line}.tool-content-wrapper{display:flex;flex-direction:column;height:100%;width:100%}.tool-center-layout{display:flex;flex-direction:column;justify-content:center;align-items:center;height:100%;width:100%;min-height:350px}.tool-center-layout .tool-step-title{margin-top:0;margin-bottom:24px}.tool-center-layout .tool-description{margin-bottom:0}.tool-result-preview{background:#0f172a;border:1px solid rgba(148,163,184,.2);border-radius:12px;padding:18px 20px;margin-bottom:24px;text-align:left;color:#e2e8f0;font-family:inherit;font-size:1rem;line-height:1.6;white-space:pre-wrap;box-shadow:inset 0 2px 4px #0000004d}.zone-stack{display:flex;flex-direction:column;gap:16px;width:100%;margin-bottom:auto}.zone-card{background:#1e293b66;border:1px solid rgba(148,163,184,.1);border-left:4px solid var(--zone-color, #94a3b8);border-radius:12px;padding:20px;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;text-align:left;position:relative;overflow:hidden}.zone-card:hover{background:#1e293bcc;transform:translate(4px)}.zone-card.active{background:#1e293be6;box-shadow:0 4px 20px -5px #0006;border-color:#94a3b81a;border-left-color:var(--zone-color);border-left-width:6px}.zone-icon-wrapper{margin-right:16px;color:var(--zone-color);opacity:.8;display:flex;align-items:center}.zone-card.active .zone-icon-wrapper{opacity:1;transform:scale(1.1)}.zone-title{font-size:1rem;font-weight:700;margin-bottom:4px;text-transform:uppercase;letter-spacing:.05em}.zone-desc{font-size:.85rem;line-height:1.4;color:#94a3b8}.check-indicator{margin-left:12px;color:var(--zone-color);animation:fadeIn .2s ease-out}.protocol-card{background:#0f172a99;border:1px solid rgba(148,163,184,.1);border-radius:16px;padding:24px;margin-bottom:auto;text-align:left;animation:fadeIn .5s ease-out}.protocol-body{font-size:1.05rem;line-height:1.7;color:#e2e8f0;white-space:pre-wrap}.tool-footer{margin-top:0;display:flex;justify-content:center;gap:12px;min-height:60px;align-items:flex-end;flex-shrink:0;padding-bottom:10px}.tool-button{border-radius:12px;padding:14px 32px;font-size:1rem;border:none;cursor:pointer;font-weight:600;transition:all .2s;min-width:120px}.tool-button.primary{background:linear-gradient(135deg,#38bdf8,#818cf8);color:#fff;box-shadow:0 4px 12px #818cf84d}.tool-button.primary:hover{transform:translateY(-1px);box-shadow:0 6px 16px #818cf866}.tool-button.ghost{background:transparent;color:#94a3b8}.tool-button.ghost:hover{color:#e2e8f0;background:#ffffff0d}.tool-button:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}.premium-gradient-title{font-size:2.5rem;font-weight:800;text-align:center;background:linear-gradient(to right,#38bdf8,#818cf8,#c084fc);-webkit-background-clip:text;background-clip:text;color:transparent;margin-top:auto}.tool-summary{text-align:center;width:100%;margin-bottom:auto}@media (max-width: 640px){.tool-card{height:auto;min-height:600px}.premium-gradient-title{font-size:2rem}.zone-card{padding:16px}.protocol-body{font-size:1rem}}@keyframes fadeIn{0%{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}