:root{--bg-app:#e8eef0;--bg-phone:#f2f5f4;--bg-surface:#fff;--bg-muted:#eef3f2;--bg-hero:linear-gradient(165deg, #0a4a46 0%, #0d635c 48%, #147a70 100%);--bg-industrial:radial-gradient(ellipse at 20% 0%, #147a701f, transparent 50%), radial-gradient(ellipse at 90% 100%, #b8782814, transparent 40%), linear-gradient(180deg, #eef3f2 0%, #e4ebe9 100%);--ink:#1a2b2a;--ink-soft:#4a5c5a;--ink-faint:#7a8c8a;--line:#d4dedc;--primary:#0b5f5a;--primary-hover:#094e4a;--primary-soft:#d8eeeb;--accent:#c47d1a;--accent-soft:#f8eedc;--success:#1f7a4d;--success-soft:#e2f3ea;--warning:#b56a12;--warning-soft:#fff3e0;--danger:#b33a32;--danger-soft:#fce8e6;--info:#1f5f8a;--info-soft:#e4f0f8;--shadow:0 12px 40px #1a2b2a1f;--radius:14px;--radius-sm:10px;--font:"Vazirmatn", system-ui, 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button.active{color:var(--primary);background:#fff;box-shadow:0 1px 4px #0000000f}.scenario-list{flex-direction:column;gap:8px;display:flex}.scenario-btn{text-align:right;border:1px solid var(--line);background:#fff;border-radius:12px;padding:12px;transition:all .15s}.scenario-btn:hover,.scenario-btn.active{border-color:var(--primary);background:#f3faf9}.scenario-btn .flow-num{color:var(--accent);margin-bottom:4px;font-size:.7rem;font-weight:700;display:inline-block}.scenario-btn strong{margin-bottom:2px;font-size:.9rem;display:block}.scenario-btn small{color:var(--ink-faint);font-size:.75rem;line-height:1.45}.flow-map-screen{padding:44px 16px 24px}.flow-map-screen h2{margin:0 0 6px;font-size:1.2rem}.flow-map-screen>p{color:var(--ink-soft);margin:0 0 16px;font-size:.88rem;line-height:1.55}.arch-card{background:var(--bg-surface);border:1px solid var(--line);border-radius:14px;margin-bottom:12px;padding:14px}.arch-card h4{color:var(--primary);margin:0 0 8px;font-size:.92rem}.arch-card 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