:root{--font-sans:"Inter", system-ui, -apple-system, sans-serif;--transition-fast:.15s ease;--transition-normal:.3s ease;--radius-md:12px;--radius-lg:16px;--radius-full:9999px}:root[data-theme=dark]{--bg-main:#0f1119;--bg-surface:#181b25;--bg-surface-hover:#212331;--bg-glass:#181b25b3;--text-primary:#f2f2f2;--text-secondary:#a7abbe;--text-muted:#6c7393;--primary:#7c67e4;--primary-hover:#a193ec;--accent:#fab338;--accent-hover:#fbc66a;--border:#292c3d;--border-glow:#7c67e44d;--error:#e05252;--success:#3c6}:root[data-theme=light]{--bg-main:#fafafa;--bg-surface:#fff;--bg-surface-hover:#f1f1f4;--bg-glass:#fffc;--text-primary:#1d2030;--text-secondary:#575c75;--text-muted:#8a8fa8;--primary:#573cdd;--primary-hover:#3d22c3;--accent:#f9a006;--accent-hover:#e09006;--border:#e0e2eb;--border-glow:#573cdd33;--error:#d92626;--success:#29a352}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-main);color:var(--text-primary);transition:background-color var(--transition-normal), color var(--transition-normal);min-height:100vh;line-height:1.5}a{color:inherit;text-decoration:none}button{font-family:inherit}.gradient-text{background:linear-gradient(135deg, var(--primary), var(--accent));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes pulseGlow{0%{box-shadow:0 0 0 0 var(--border-glow)}50%{box-shadow:0 0 15px 0 var(--border-glow)}to{box-shadow:0 0 0 0 var(--border-glow)}}.fade-in{animation:.4s forwards fadeIn}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-main)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.app-layout{height:100vh;display:flex;overflow:hidden}.sidebar{background:var(--bg-surface);border-right:1px solid var(--border);width:260px;transition:width var(--transition-normal);z-index:10;flex-direction:column;display:flex}.sidebar.collapsed{width:80px}.sidebar-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:24px;display:flex}.sidebar-logo{font-size:1.5rem;font-weight:700}.sidebar.collapsed .sidebar-logo span{display:none}.sidebar-nav{flex-direction:column;flex:1;gap:8px;padding:24px 12px;display:flex}.nav-item{border-radius:var(--radius-md);color:var(--text-secondary);transition:all var(--transition-fast);align-items:center;gap:12px;padding:12px;font-weight:500;display:flex}.nav-item:hover{background:var(--bg-surface-hover);color:var(--text-primary)}.nav-item.active{background:var(--bg-surface-hover);color:var(--primary);position:relative}.nav-item.active:before{content:"";background:var(--accent);border-radius:0 4px 4px 0;width:4px;height:24px;position:absolute;top:50%;left:-12px;transform:translateY(-50%)}.nav-icon{flex-shrink:0;width:24px;height:24px}.sidebar.collapsed .nav-label{display:none}.sidebar-footer{border-top:1px solid var(--border);flex-direction:column;align-items:flex-start;gap:16px;padding:16px;display:flex}.user-profile{align-items:center;gap:12px;display:flex;overflow:hidden}.avatar{background:linear-gradient(135deg, var(--primary), var(--accent));color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-weight:600;display:flex}.user-info{white-space:nowrap;flex-direction:column;display:flex}.user-name{font-size:.9rem;font-weight:500}.user-email{color:var(--text-muted);font-size:.75rem}.sidebar.collapsed .user-info{display:none}.sidebar.collapsed .sidebar-footer{align-items:center;padding:16px 0}.sidebar-toggles{gap:8px;display:flex}.sidebar.collapsed .sidebar-toggles{flex-direction:column}.content-area{background:var(--bg-main);flex:1;padding:32px;overflow-y:auto}.mobile-header{display:none}.logout-btn{color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;padding:8px;display:flex}.logout-btn:hover{color:#eb4747;background:#eb47471a}@media (width<=768px){.app-layout{flex-direction:column}.mobile-header{border-bottom:1px solid var(--border);background:var(--bg-surface);z-index:100;justify-content:space-between;align-items:center;padding:12px 16px;display:flex}.mobile-header-actions{align-items:center;gap:8px;display:flex}.sidebar{border-right:none;border-top:1px solid var(--border);z-index:100;flex-direction:row;justify-content:space-around;align-items:center;height:auto;padding:8px;position:fixed;bottom:0;left:0;right:0;width:100%!important}.sidebar-header,.sidebar-footer{display:none}.sidebar-nav{flex-direction:row;justify-content:space-around;width:100%;padding:0}.nav-item{flex-direction:column;gap:4px;padding:8px 12px}.sidebar.collapsed .nav-label{display:block}.nav-label{font-size:.7rem;display:block}.nav-item.active:before{display:none}.content-area{height:calc(100vh - 60px);padding:16px 16px 80px}}.btn{border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);border:none;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:.95rem;font-weight:600;text-decoration:none;display:inline-flex}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg, var(--primary), #8152e0);color:#fff;box-shadow:0 4px 14px #7c67e44d}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #7c67e466}.btn-secondary{color:var(--text-primary);border:1px solid var(--border);background:0 0}.btn-secondary:hover:not(:disabled){background:var(--bg-surface-hover);border-color:var(--text-muted)}.btn-ghost{color:var(--text-secondary);background:0 0}.btn-ghost:hover:not(:disabled){background:var(--bg-surface-hover);color:var(--text-primary)}.btn-sm{padding:6px 12px;font-size:.85rem}.btn-lg{padding:14px 28px;font-size:1.1rem}.input-group{flex-direction:column;gap:6px;width:100%;margin-bottom:16px;display:flex}.input-label{color:var(--text-secondary);font-size:.85rem;font-weight:500}.input-field{border-radius:var(--radius-md);border:1px solid var(--border);background:var(--bg-surface);color:var(--text-primary);transition:all var(--transition-fast);width:100%;padding:12px 16px;font-family:inherit;font-size:1rem}.input-field:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--border-glow);outline:none}.input-field.error{border-color:var(--error)}.input-field.error:focus{box-shadow:0 0 0 3px #e0525233}.error-text{color:var(--error);font-size:.75rem}.card{background:var(--bg-glass);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border);border-radius:var(--radius-lg);transition:all var(--transition-normal);padding:24px}.card.interactive{cursor:pointer}.card.interactive:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:0 8px 30px #0000001f}.spinner{border:2px solid;border-color:currentColor currentColor #0000 #0000;border-radius:50%;width:20px;height:20px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.theme-toggle{color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;padding:8px;display:flex}.theme-toggle:hover{background:var(--bg-surface-hover);color:var(--text-primary)}.theme-toggle svg{width:20px;height:20px;transition:transform .5s}.theme-toggle:active svg{transform:rotate(45deg)}.landing-page{background:radial-gradient(circle at 50% -20%, #7c67e426, var(--bg-main) 60%);flex-direction:column;justify-content:center;align-items:center;min-height:100vh;padding:40px 20px;display:flex}.hero{text-align:center;margin-bottom:60px}.hero-title{letter-spacing:-.05em;margin-bottom:16px;font-size:4rem;font-weight:800}.hero-subtitle{color:var(--text-secondary);max-width:600px;margin:0 auto;font-size:1.2rem}.hero-description{color:var(--text-muted);max-width:600px;margin:16px auto 0;font-size:1rem}.landing-content{flex-wrap:wrap;gap:40px;width:100%;max-width:1000px;display:flex}.features{flex-direction:column;flex:1;gap:20px;min-width:300px;display:flex}.feature-card{align-items:flex-start;gap:16px;display:flex}.feature-icon{background:var(--bg-surface);border:1px solid var(--border);width:48px;height:48px;color:var(--primary);border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.feature-text h3{margin-bottom:4px;font-size:1.1rem}.feature-text p{color:var(--text-secondary);font-size:.9rem}.auth-panel{flex:1;min-width:320px;max-width:400px;margin:0 auto}.auth-header{text-align:center;margin-bottom:24px}.auth-header h2{margin-bottom:8px;font-size:1.5rem}.auth-divider{color:var(--text-muted);align-items:center;margin:20px 0;font-size:.85rem;display:flex}.auth-divider:before,.auth-divider:after{content:"";background:var(--border);flex:1;height:1px}.auth-divider:before{margin-right:12px}.auth-divider:after{margin-left:12px}.dashboard-header{margin-bottom:32px}.dashboard-header h1{font-size:2rem;font-weight:700}.quick-actions{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;margin-bottom:40px;display:grid}.action-card{text-align:center;flex-direction:column;align-items:center;gap:16px;padding:32px;display:flex}.action-icon{width:64px;height:64px;color:var(--primary);background:#7c67e41a;border-radius:50%;justify-content:center;align-items:center;display:flex}.calc-container{max-width:800px;margin:0 auto;padding:40px 20px}.calc-tabs{background:var(--bg-surface);border-radius:var(--radius-lg);border:1px solid var(--border);gap:8px;margin-bottom:32px;padding:6px;display:flex}.calc-tab{text-align:center;border-radius:var(--radius-md);cursor:pointer;color:var(--text-secondary);transition:all var(--transition-fast);flex:1;padding:12px;font-weight:600}.calc-tab.active{background:var(--bg-surface-hover);color:var(--text-primary);box-shadow:0 2px 8px #0000001a}.calc-form{grid-template-columns:1fr 1fr;gap:20px;display:grid}.calc-form .full-width{grid-column:1/-1}.results-panel{border-top:1px solid var(--border);margin-top:32px;padding-top:32px}.results-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px;margin-bottom:32px;display:grid}.result-item{flex-direction:column;gap:8px;display:flex}.result-label{color:var(--text-secondary);font-size:.9rem}.result-value{color:var(--primary);font-size:1.8rem;font-weight:700}.result-value.accent{color:var(--accent)}.breakdown-table{border-collapse:collapse;width:100%;margin-top:16px}.breakdown-table th,.breakdown-table td{text-align:left;border-bottom:1px solid var(--border);padding:12px}.breakdown-table th{color:var(--text-muted);font-size:.85rem;font-weight:500}.wizard-steps{justify-content:space-between;margin-bottom:40px;display:flex;position:relative}.wizard-steps:before{content:"";background:var(--border);z-index:0;height:2px;position:absolute;top:50%;left:0;right:0}.step-item{z-index:1;background:var(--bg-main);color:var(--text-muted);padding:0 16px;font-weight:600;position:relative}.step-item.active{color:var(--primary)}.template-grid{grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px;display:grid}.dashboard-grid{grid-template-columns:1fr 300px;gap:24px;display:grid}.doc-form-grid{grid-template-columns:1fr 1fr;gap:20px;display:grid}@media (width<=768px){.hero-title{font-size:2.5rem}.landing-content{flex-direction:column}.calc-form,.doc-form-grid,.dashboard-grid{grid-template-columns:1fr}.wizard-steps{flex-direction:column;align-items:center;gap:16px}.wizard-steps:before{display:none}}