:root{--bg-base: #F5F7FA;--bg-surface: #FFFFFF;--bg-card: #FFFFFF;--bg-elevated: #EEF2F7;--text-primary: #1A1D23;--text-secondary: #4B5563;--text-muted: #94A3B8;--border-subtle: #E8ECF0;--border-medium: #CBD5E1;--brand-primary: #4F6EF7;--brand-accent: #10B981;--brand-primary-light: #EEF2FF;--success: #10B981;--warning: #F59E0B;--danger: #EF4444;--info: #4F6EF7;--shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 12px rgba(0,0,0,.08), 0 2px 4px rgba(0,0,0,.05);--shadow-lg: 0 12px 32px rgba(0,0,0,.1), 0 4px 8px rgba(0,0,0,.06);--shadow-brand: 0 4px 14px rgba(79,110,247,.25);--sp-1: 4px;--sp-2: 8px;--sp-3: 12px;--sp-4: 16px;--sp-5: 20px;--sp-6: 24px;--sp-8: 32px;--sp-10: 40px;--sp-12: 48px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--radius-xl: 20px;--radius-full: 9999px;--font-base: "Inter", system-ui, sans-serif;--text-xs: 11px;--text-sm: 13px;--text-base: 15px;--text-md: 17px;--text-lg: 20px;--text-xl: 24px;--text-2xl: 30px;--transition-fast: .14s ease;--transition-base: .22s ease;--nav-height: 60px;--header-height: 56px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:var(--text-base);scroll-behavior:smooth}body{font-family:var(--font-base);background:var(--bg-base);color:var(--text-primary);min-height:100dvh;-webkit-font-smoothing:antialiased;overscroll-behavior:none}a{color:inherit;text-decoration:none}button,input,select,textarea{font-family:inherit}img{max-width:100%;display:block}.app-shell{display:flex;flex-direction:column;min-height:100dvh}.page-content{flex:1;padding:var(--sp-4);padding-top:calc(var(--header-height) + var(--sp-5));padding-bottom:calc(var(--nav-height) + var(--sp-6));max-width:680px;margin:0 auto;width:100%}.header{position:fixed;top:0;left:0;right:0;height:var(--header-height);background:#ffffffeb;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border-subtle);display:flex;align-items:center;justify-content:space-between;padding:0 var(--sp-4);z-index:100;box-shadow:var(--shadow-sm)}.header-logo{display:flex;align-items:center;gap:var(--sp-2)}.header-logo-icon{width:32px;height:32px;background:var(--brand-primary);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 2px 8px #4f6ef74d}.header-logo-text{font-weight:800;font-size:var(--text-md);color:var(--brand-primary);letter-spacing:-.5px}.header-title{font-size:var(--text-sm);font-weight:500;color:var(--text-muted);letter-spacing:.1px}.bottom-nav{position:fixed;bottom:0;left:0;right:0;height:var(--nav-height);background:#fffffff2;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--border-subtle);display:flex;align-items:stretch;z-index:100;padding-bottom:env(safe-area-inset-bottom,0px);box-shadow:0 -1px 8px #0000000d}.nav-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;border:none;background:transparent;color:var(--text-muted);font-size:var(--text-xs);font-weight:500;transition:color var(--transition-fast);-webkit-tap-highlight-color:transparent;padding:0 var(--sp-2)}.nav-item .nav-icon{transition:transform var(--transition-fast);display:flex;align-items:center;justify-content:center}.nav-item.active{color:var(--brand-primary)}.nav-item.active .nav-icon{transform:scale(1.08)}.nav-item:hover{color:var(--text-secondary)}.card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:var(--sp-5);transition:border-color var(--transition-base),box-shadow var(--transition-base);box-shadow:var(--shadow-sm)}.card:hover{border-color:var(--border-medium);box-shadow:var(--shadow-md)}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--sp-4)}.card-title{font-size:var(--text-md);font-weight:700;letter-spacing:-.2px;color:var(--text-primary)}.card-subtitle{font-size:var(--text-sm);color:var(--text-secondary);margin-top:2px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--sp-2);padding:10px var(--sp-5);border-radius:var(--radius-full);font-weight:600;font-size:var(--text-sm);border:none;cursor:pointer;transition:all var(--transition-fast);-webkit-tap-highlight-color:transparent;white-space:nowrap;letter-spacing:.1px}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--brand-primary);color:#fff;box-shadow:var(--shadow-brand)}.btn-primary:hover:not(:disabled){background:#3b58e8;box-shadow:0 6px 18px #4f6ef759;transform:translateY(-1px)}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-success{background:var(--brand-accent);color:#fff;box-shadow:0 4px 12px #10b98140}.btn-success:hover:not(:disabled){background:#0da572;transform:translateY(-1px)}.btn-danger{background:#fef2f2;color:var(--danger);border:1px solid #FECACA}.btn-danger:hover:not(:disabled){background:#fee2e2;border-color:#fca5a5}.btn-ghost{background:var(--bg-elevated);color:var(--text-secondary);border:1px solid var(--border-subtle)}.btn-ghost:hover:not(:disabled){background:var(--bg-surface);color:var(--text-primary);border-color:var(--border-medium)}.btn-icon{padding:var(--sp-2);width:34px;height:34px;border-radius:var(--radius-sm);flex-shrink:0}.btn-full{width:100%}.btn-lg{padding:13px var(--sp-6);font-size:var(--text-base)}.fab{position:fixed;bottom:calc(var(--nav-height) + var(--sp-4));right:var(--sp-5);width:52px;height:52px;border-radius:var(--radius-full);background:var(--brand-primary);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-brand),var(--shadow-md);transition:transform var(--transition-fast),box-shadow var(--transition-fast),background var(--transition-fast);z-index:50;-webkit-tap-highlight-color:transparent}.fab:hover{transform:scale(1.06);background:#3b58e8;box-shadow:0 6px 20px #4f6ef766}.fab:active{transform:scale(.95)}.form-group{margin-bottom:var(--sp-4)}.form-label{display:block;font-size:11px;font-weight:700;color:var(--text-muted);margin-bottom:var(--sp-2);text-transform:uppercase;letter-spacing:.7px}.form-input{width:100%;background:var(--bg-elevated);border:1.5px solid var(--border-subtle);border-radius:var(--radius-md);padding:11px var(--sp-4);color:var(--text-primary);font-size:var(--text-base);transition:border-color var(--transition-fast),box-shadow var(--transition-fast),background var(--transition-fast);-webkit-appearance:none;appearance:none}.form-input:focus{outline:none;border-color:var(--brand-primary);background:var(--bg-surface);box-shadow:0 0 0 3px #4f6ef71f}.form-input::placeholder{color:var(--text-muted)}.form-input.error{border-color:var(--danger)}.form-error{font-size:var(--text-xs);color:var(--danger);margin-top:var(--sp-1);display:flex;align-items:center;gap:4px;font-weight:500}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-3)}.form-hint{font-size:var(--text-xs);color:var(--text-muted);margin-top:var(--sp-1);line-height:1.4}select.form-input{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%234B5563' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:40px;cursor:pointer}select.form-input option{background:#fff;color:var(--text-primary)}.badge{display:inline-flex;align-items:center;gap:var(--sp-1);padding:3px 10px;border-radius:var(--radius-full);font-size:var(--text-xs);font-weight:600}.badge-primary{background:#eef2ff;color:#4338ca}.badge-success{background:#ecfdf5;color:#059669}.badge-warning{background:#fffbeb;color:#b45309}.badge-danger{background:#fef2f2;color:#b91c1c}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--sp-4)}.section-title{font-size:var(--text-lg);font-weight:800;letter-spacing:-.4px;color:var(--text-primary)}.section-subtitle{font-size:var(--text-sm);color:var(--text-muted);margin-top:2px}.divider{height:1px;background:var(--border-subtle);margin:var(--sp-5) 0}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:var(--sp-12) var(--sp-6);gap:var(--sp-4)}.empty-icon{width:64px;height:64px;background:var(--bg-elevated);border-radius:var(--radius-xl);display:flex;align-items:center;justify-content:center;color:var(--text-muted)}.empty-title{font-size:var(--text-lg);font-weight:700;color:var(--text-primary)}.empty-desc{font-size:var(--text-sm);color:var(--text-secondary);max-width:240px;line-height:1.6}.modal-overlay{position:fixed;inset:0;background:#1e293b73;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:200;display:flex;align-items:flex-end;justify-content:center;animation:fadeIn .2s ease}@media(min-width:480px){.modal-overlay{align-items:center}}.modal-sheet{background:var(--bg-surface);border-radius:var(--radius-xl) var(--radius-xl) 0 0;padding:var(--sp-6);width:100%;max-width:520px;max-height:90dvh;overflow-y:auto;animation:slideUp .24s ease;border:1px solid var(--border-subtle);border-bottom:none;box-shadow:var(--shadow-lg)}@media(min-width:480px){.modal-sheet{border-radius:var(--radius-xl);border:1px solid var(--border-medium)}}.modal-handle{width:36px;height:4px;background:var(--border-medium);border-radius:var(--radius-full);margin:0 auto var(--sp-5)}.modal-title{font-size:var(--text-lg);font-weight:800;margin-bottom:var(--sp-5);letter-spacing:-.3px;color:var(--text-primary)}.tabs{display:flex;background:var(--bg-elevated);border-radius:var(--radius-md);padding:4px;gap:4px;margin-bottom:var(--sp-5);border:1px solid var(--border-subtle)}.tab-item{flex:1;padding:8px var(--sp-3);border-radius:7px;font-size:var(--text-sm);font-weight:600;border:none;background:transparent;color:var(--text-muted);cursor:pointer;transition:all var(--transition-fast);text-align:center;-webkit-tap-highlight-color:transparent;display:flex;align-items:center;justify-content:center;gap:var(--sp-2)}.tab-item.active{background:var(--bg-surface);color:var(--brand-primary);box-shadow:var(--shadow-sm);font-weight:700}.cost-row{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px solid var(--border-subtle);font-size:var(--text-sm)}.cost-row:last-child{border-bottom:none}.cost-row-label{color:var(--text-secondary);display:flex;align-items:center;gap:var(--sp-2)}.cost-row-value{font-weight:600;font-variant-numeric:tabular-nums;color:var(--text-primary)}.cost-total{display:flex;justify-content:space-between;align-items:flex-start;gap:var(--sp-4);padding:var(--sp-4) var(--sp-5);background:#eef2ff;border-radius:var(--radius-lg);border:1.5px solid #C7D2FE;margin-top:var(--sp-4)}.cost-total-label{font-size:var(--text-base);font-weight:700;color:var(--text-primary)}.cost-total-value{font-size:var(--text-xl);font-weight:800;color:var(--brand-primary);font-variant-numeric:tabular-nums}.quote-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:var(--sp-5);cursor:pointer;transition:all var(--transition-base);position:relative;overflow:hidden;box-shadow:var(--shadow-sm)}.quote-card:before{content:"";position:absolute;top:0;left:0;width:4px;height:100%;background:var(--brand-primary);border-radius:0}.quote-card:hover{border-color:var(--border-medium);box-shadow:var(--shadow-md);transform:translateY(-2px)}.quote-card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-left:var(--sp-3)}.quote-client{font-weight:700;font-size:var(--text-base);color:var(--text-primary)}.quote-project{font-size:var(--text-sm);color:var(--text-secondary);margin-top:2px}.quote-meta{display:flex;gap:var(--sp-4);margin-top:var(--sp-3);margin-left:var(--sp-3)}.quote-meta-item{font-size:var(--text-sm);color:var(--text-muted);display:flex;align-items:center;gap:5px}.piece-card{background:var(--bg-elevated);border:1.5px solid var(--border-subtle);border-radius:var(--radius-md);padding:var(--sp-4);margin-bottom:var(--sp-3);position:relative;transition:border-color var(--transition-fast)}.piece-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--sp-3)}.piece-number{width:24px;height:24px;background:var(--brand-primary);border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;font-size:var(--text-xs);font-weight:800;color:#fff;flex-shrink:0}.step-indicator{display:flex;align-items:center;gap:var(--sp-2);margin-bottom:var(--sp-6)}.step-dot{width:28px;height:28px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;transition:all var(--transition-base);flex-shrink:0}.step-dot.done{background:var(--brand-accent);color:#fff}.step-dot.active{background:var(--brand-primary);color:#fff;box-shadow:0 0 0 4px #4f6ef72e}.step-dot.pending{background:var(--bg-elevated);color:var(--text-muted);border:1.5px solid var(--border-medium)}.step-line{flex:1;height:2px;background:var(--border-subtle);border-radius:var(--radius-full)}.step-line.done{background:var(--brand-accent)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(32px);opacity:0}to{transform:translateY(0);opacity:1}}.animate-fade{animation:fadeIn var(--transition-base) both}.animate-slide-up{animation:slideUp var(--transition-base) both}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-2{gap:var(--sp-2)}.gap-3{gap:var(--sp-3)}.gap-4{gap:var(--sp-4)}.mt-2{margin-top:var(--sp-2)}.mt-3{margin-top:var(--sp-3)}.mt-4{margin-top:var(--sp-4)}.mt-5{margin-top:var(--sp-5)}.mb-3{margin-bottom:var(--sp-3)}.mb-4{margin-bottom:var(--sp-4)}.text-sm{font-size:var(--text-sm)}.text-xs{font-size:var(--text-xs)}.text-muted{color:var(--text-muted)}.text-secondary{color:var(--text-secondary)}.text-success{color:var(--success)}.text-danger{color:var(--danger)}.text-warning{color:var(--warning)}.text-brand{color:var(--brand-primary)}.font-bold{font-weight:700}.font-mono{font-family:"ui-monospace",Courier New,monospace}.w-full{width:100%}.hidden{display:none!important}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-medium);border-radius:var(--radius-full)}@media(min-width:480px){.page-content{padding:var(--sp-6);padding-top:calc(var(--header-height) + var(--sp-6));padding-bottom:calc(var(--nav-height) + var(--sp-8))}}