:root{--primary: #1a8c1a;--primary-light: #229922;--primary-lighter: #eaf7ea;--accent: #e8961a;--accent-light: #fdf3e3;--success: #0f6b30;--success-light: #e4f5ec;--danger: #c0392b;--danger-light: #fdecea;--warning: #d4870a;--warning-light: #fef9e7;--text: #1a1a1a;--text-muted: #6b7280;--bg: #f3f7f3;--bg-card: #ffffff;--border: #d4e8d4;--radius: 12px;--radius-sm: 8px;--shadow: 0 2px 12px rgba(26,140,26,.1);--shadow-lg: 0 6px 24px rgba(26,140,26,.16);--nav-height: 64px;--header-height: 68px;--safe-bottom: env(safe-area-inset-bottom, 0px);font-size:16px}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}html{height:100%}body{height:100%;overflow:hidden;-webkit-text-size-adjust:100%;text-size-adjust:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe 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.nav-icon{transform:scale(1.1)}.card{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;margin-bottom:12px}.card-header{padding:14px 16px 12px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px}.card-header-icon{width:36px;height:36px;border-radius:10px;background:var(--primary-lighter);display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}.card-header h2{font-size:15px;font-weight:700;color:var(--primary)}.card-header p{font-size:12px;color:var(--text-muted);margin-top:1px}.card-body{padding:16px}.card-body+.card-body{padding-top:0}.form-group{margin-bottom:14px}.form-label{display:block;font-size:12px;font-weight:600;color:var(--primary);margin-bottom:5px;letter-spacing:.2px}.form-label.required:after{content:" *";color:var(--danger)}.form-input,.form-select,.form-textarea{width:100%;padding:12px 14px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:16px;color:var(--text);background:#fff;transition:border-color .15s,box-shadow .15s;-webkit-appearance:none;-moz-appearance:none;appearance:none;font-family:inherit}.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #1a3c5e1f}.form-select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236b7280' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:38px}.form-textarea{resize:vertical;min-height:80px}.form-hint{font-size:11px;color:var(--text-muted);margin-top:4px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.form-row-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}.toggle-group{display:flex;gap:8px;flex-wrap:wrap}.toggle-btn{flex:1;min-width:80px;padding:10px 12px;border:2px solid var(--border);border-radius:var(--radius-sm);background:#fff;color:var(--text-muted);font-size:13px;font-weight:600;cursor:pointer;text-align:center;transition:all .15s;touch-action:manipulation}.toggle-btn:hover{border-color:var(--primary-light);color:var(--primary)}.toggle-btn.active{border-color:var(--primary);background:var(--primary-lighter);color:var(--primary)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 20px;border:none;border-radius:var(--radius-sm);font-size:15px;font-weight:600;font-family:inherit;cursor:pointer;text-align:center;white-space:nowrap;transition:opacity .15s,transform 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th:last-child,.material-table td:last-child{text-align:right}.material-table td{padding:10px 8px;font-size:12px;border-bottom:1px solid var(--border)}.material-table tbody tr:hover{background:var(--primary-lighter)}.material-table tfoot td{font-weight:700;background:var(--primary-lighter);color:var(--primary);border-top:2px solid var(--primary);padding:10px 8px}.material-qty-input{width:70px;padding:6px 8px;font-size:16px;border:1.5px solid var(--border);border-radius:6px;text-align:right}.material-qty-input:focus{outline:none;border-color:var(--primary)}.project-card{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);padding:0;overflow:hidden;margin-bottom:10px;cursor:pointer;transition:box-shadow .15s,transform .1s;touch-action:manipulation}.project-card:active{transform:scale(.99);box-shadow:var(--shadow-lg)}.project-card-header{padding:14px 16px 10px;display:flex;align-items:flex-start;justify-content:space-between;border-bottom:1px solid 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h3{font-size:17px;color:var(--text);margin-bottom:8px}.empty-state p{font-size:13px;line-height:1.6}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:1000;display:flex;align-items:flex-end;animation:fadeIn .2s ease;pointer-events:auto}.modal-sheet{background:#fff;border-radius:20px 20px 0 0;width:100%;max-height:92vh;max-height:92dvh;display:flex;flex-direction:column;overflow:hidden;padding-bottom:calc(20px + var(--safe-bottom));animation:slideUp .25s ease}.modal-handle{width:40px;height:4px;background:var(--border);border-radius:2px;margin:12px auto 4px}.modal-header{padding:8px 16px 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}.modal-title{font-size:17px;font-weight:700;color:var(--primary)}.modal-close{font-size:22px;background:none;border:none;cursor:pointer;color:var(--text-muted);padding:8px 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1fr;gap:10px;margin-bottom:0}.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;margin-bottom:14px}@media (max-width: 400px){.form-row{grid-template-columns:1fr}.form-row-3{grid-template-columns:1fr 1fr}.row-2{grid-template-columns:1fr}.grid-3,.result-grid{grid-template-columns:1fr 1fr}}@media (min-width: 640px){.screen{padding:24px}.result-grid{grid-template-columns:repeat(3,1fr)}.stock-summary-grid{grid-template-columns:repeat(4,1fr)}.form-row,.grid-3{grid-template-columns:1fr 1fr 1fr}}@media (max-height: 500px) and (orientation: landscape){:root{--header-height: 48px;--nav-height: 48px}.app-header{padding:0 12px}.app-header .logo img{height:32px}.app-header .subtitle{display:none}.bottom-nav{height:calc(var(--nav-height) + var(--safe-bottom))}.bottom-nav .nav-item{padding:6px 4px;font-size:10px}.bottom-nav .nav-icon{margin-bottom:1px}.app-content{padding-bottom:calc(var(--nav-height) + var(--safe-bottom) + 8px)}}