:root{--bg-primary: #1A1A2E;--bg-secondary: #232336;--bg-elevated: #2A2A40;--bg-sidebar: #16162A;--accent-primary: #E74C4C;--accent-hover: #FF6B6B;--accent-secondary: #F5C542;--accent-green: #10B981;--danger: #EF4444;--text-primary: #FFFFFF;--text-secondary: #A0A0B8;--text-tertiary: #5A5A72;--border: rgba(255, 255, 255, .08);--border-focus: rgba(231, 76, 76, .5);--shadow-subtle: 0 4px 24px rgba(0, 0, 0, .3);--shadow-glow: 0 0 20px rgba(231, 76, 76, .15);--font-body: "Inter", system-ui, -apple-system, sans-serif;--font-heading: "Outfit", system-ui, -apple-system, sans-serif;--font-mono: "JetBrains Mono", monospace;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.5rem;--space-6: 2rem;--space-8: 3rem;--radius-sm: 6px;--radius-md: 12px;--radius-lg: 16px;--radius-full: 9999px;--pdf-bg: #FFFFFF;--pdf-text: #111827;--pdf-muted: #6B7280;--pdf-border: #E5E7EB;--pdf-accent: #E74C4C}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:var(--font-body);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;position:relative;overflow-x:hidden}.noise-overlay{position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:9999;opacity:.03;mix-blend-mode:overlay;background-image:url('data:image/svg+xml,%3Csvg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"%3E%3Cfilter id="noiseFilter"%3E%3CfeTurbulence type="fractalNoise" baseFrequency="0.65" numOctaves="3" stitchTiles="stitch"/%3E%3C/filter%3E%3Crect width="100%25" height="100%25" filter="url(%23noiseFilter)"/%3E%3C/svg%3E')}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);line-height:1.2;letter-spacing:-.02em;font-weight:600;color:var(--text-primary)}a{color:var(--accent-primary);text-decoration:none;transition:color .2s ease}a:hover{color:var(--accent-hover)}::selection{background-color:#e74c4c4d;color:#fff}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--bg-elevated);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}.text-secondary{color:var(--text-secondary)}.text-tertiary{color:var(--text-tertiary)}.font-mono{font-family:var(--font-mono)}.text-right{text-align:right}.mt-4{margin-top:var(--space-4)}*:focus-visible{outline:2px solid var(--accent-primary);outline-offset:2px}.top-nav{position:sticky;top:0;z-index:100;display:flex;justify-content:space-between;align-items:center;padding:var(--space-4) var(--space-6);background:#1a1a2ecc;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.nav-brand{display:flex;align-items:center;gap:var(--space-3)}.logo-mark{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));box-shadow:var(--shadow-glow)}.top-nav h1{font-size:1.25rem;margin:0}.app-layout{display:grid;grid-template-columns:1fr;min-height:calc(100vh - 73px)}@media (min-width: 1024px){.app-layout{grid-template-columns:55% 45%}}.panel{padding:var(--space-6);max-width:100%}.form-panel{display:flex;flex-direction:column;gap:var(--space-6);max-width:800px;margin:0 auto;width:100%}.panel-header h2{font-size:1.75rem;margin-bottom:var(--space-1)}.preview-panel{background-color:var(--bg-sidebar);border-left:1px solid var(--border);position:relative}.sticky-preview{position:sticky;top:calc(73px + var(--space-6));display:flex;flex-direction:column;gap:var(--space-4);align-items:center}.preview-actions{display:flex;justify-content:flex-end;width:100%;max-width:21cm}.A4-wrapper{background:#fff;width:21cm;height:29.7cm;max-width:100%;max-height:calc(100vh - 200px);aspect-ratio:1 / 1.414;height:auto;border-radius:var(--radius-sm);overflow-y:auto;overflow-x:hidden;box-shadow:0 20px 40px #0006}@media (max-width: 1023px){.preview-panel{border-left:none;border-top:1px solid var(--border)}.sticky-preview{position:static}}.card{background-color:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--space-5);box-shadow:var(--shadow-subtle);transition:transform .3s ease,box-shadow .3s ease}.card:hover{border-color:#ffffff1f;transform:translateY(-2px);box-shadow:0 8px 32px #0006}.card-title{font-size:1.125rem;margin-bottom:var(--space-4);color:var(--text-primary);display:flex;align-items:center;gap:var(--space-2)}.card-header-flex{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-4)}.form-grid{display:grid;grid-template-columns:1fr;gap:var(--space-4)}@media (min-width: 640px){.form-grid{grid-template-columns:1fr 1fr}.form-grid.three-cols{grid-template-columns:1fr 1fr 1fr}}.form-group{display:flex;flex-direction:column;gap:var(--space-2)}label{font-size:.875rem;font-weight:500;color:var(--text-secondary)}input,select,textarea{width:100%;background-color:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);padding:var(--space-3) var(--space-4);color:var(--text-primary);font-family:inherit;font-size:.9375rem;transition:all .2s ease}input::placeholder,textarea::placeholder{color:var(--text-tertiary)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--border-focus);background-color:#2a2a40cc;box-shadow:0 0 0 3px #e74c4c1a}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-5);border-radius:var(--radius-md);font-weight:600;font-size:.9375rem;cursor:pointer;border:none;transition:all .2s cubic-bezier(.4,0,.2,1)}.btn svg{width:18px;height:18px}.btn-primary{background-color:var(--accent-primary);color:#fff;box-shadow:var(--shadow-glow)}.btn-primary:hover{background-color:var(--accent-hover);transform:translateY(-1px);box-shadow:0 0 24px #e74c4c4d}.btn-primary:active{transform:translateY(1px)}.btn-secondary{background-color:var(--bg-elevated);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{background-color:#ffffff0d;border-color:#ffffff26}.btn-ghost{background:transparent;color:var(--text-secondary);padding:var(--space-2)}.btn-ghost:hover{background-color:#ffffff0d;color:var(--text-primary)}.btn-danger{background:transparent;color:var(--danger);padding:var(--space-2)}.btn-danger:hover{background-color:#ef44441a}.items-table-header{display:grid;grid-template-columns:2fr 80px 120px 120px 40px;gap:var(--space-3);padding-bottom:var(--space-2);border-bottom:1px solid var(--border);margin-bottom:var(--space-4);font-size:.875rem;color:var(--text-secondary);font-weight:500}.line-item-row{display:grid;grid-template-columns:2fr 80px 120px 120px 40px;gap:var(--space-3);align-items:center;margin-bottom:var(--space-3);position:relative}.amount-display{font-family:var(--font-mono);font-weight:500;color:var(--text-primary);display:flex;align-items:center;height:100%}.totals-summary{margin-top:var(--space-6);padding-top:var(--space-5);border-top:1px solid var(--border);display:flex;flex-direction:column;gap:var(--space-3);align-items:flex-end}.total-row{display:flex;justify-content:space-between;align-items:center;width:100%;max-width:300px;color:var(--text-secondary)}.total-row span:last-child{font-family:var(--font-mono);color:var(--text-primary)}.grand-total{font-size:1.25rem;font-weight:600;color:var(--text-primary);margin-top:var(--space-2);padding-top:var(--space-2);border-top:1px dashed var(--border)}.grand-total span:last-child{color:var(--accent-secondary)}.mini-input{width:60px;padding:var(--space-1) var(--space-2);display:inline-block;margin-left:var(--space-2)}.a4-page{width:100%;min-height:100%;background-color:var(--pdf-bg);color:var(--pdf-text);padding:40px;position:relative}.preview-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--pdf-muted);opacity:.5;text-align:center;padding-top:50%}.placeholder-icon{width:48px;height:48px;margin-bottom:var(--space-3)}.pdf-header{display:flex;justify-content:space-between;margin-bottom:40px;border-bottom:2px solid var(--pdf-border);padding-bottom:20px}.pdf-title{font-size:2.5rem;font-weight:700;color:var(--pdf-text);letter-spacing:-.02em;text-transform:uppercase}.pdf-meta{text-align:right;font-size:.875rem;color:var(--pdf-muted)}.pdf-meta strong{color:var(--pdf-text)}.pdf-addresses{display:flex;justify-content:space-between;margin-bottom:40px}.pdf-address-block h4{color:var(--pdf-muted);font-size:.875rem;text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px}.pdf-address-block p{font-size:1rem;font-weight:500;margin:0}.pdf-table{width:100%;border-collapse:collapse;margin-bottom:30px}.pdf-table th{text-align:left;padding:12px 8px;border-bottom:1px solid var(--pdf-border);color:var(--pdf-muted);font-weight:500;font-size:.875rem}.pdf-table td{padding:16px 8px;border-bottom:1px solid #F3F4F6;font-size:.9375rem}.pdf-table th:last-child,.pdf-table td:last-child{text-align:right}.pdf-totals{width:300px;margin-left:auto}.pdf-total-row{display:flex;justify-content:space-between;padding:8px 0;font-size:.9375rem;color:var(--pdf-muted)}.pdf-total-row span:last-child{color:var(--pdf-text);font-weight:500}.pdf-grand-total{font-size:1.25rem;font-weight:700;color:var(--pdf-text);border-top:2px solid var(--pdf-border);padding-top:12px;margin-top:4px}.auth-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9999;display:flex;align-items:center;justify-content:center;background:#0a0a0fd9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:var(--space-4);transition:opacity .3s ease,visibility .3s ease}.auth-overlay.hidden{opacity:0;visibility:hidden;pointer-events:none}.auth-card{background-color:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--space-6);width:100%;max-width:420px;box-shadow:0 20px 60px #00000080;transform:translateY(0);transition:transform .4s cubic-bezier(.16,1,.3,1)}.auth-overlay.hidden .auth-card{transform:translateY(20px)}.auth-header{text-align:center;margin-bottom:var(--space-6)}.auth-logo{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));box-shadow:var(--shadow-glow);margin:0 auto var(--space-4)}.auth-header h2{font-size:1.5rem;margin-bottom:var(--space-2)}.auth-form{display:flex;flex-direction:column;gap:var(--space-4)}.auth-form .btn{width:100%;padding:var(--space-3)}.divider{display:flex;align-items:center;text-align:center;color:var(--text-tertiary);font-size:.875rem;margin:var(--space-5) 0}.divider:before,.divider:after{content:"";flex:1;border-bottom:1px solid var(--border)}.divider:not(:empty):before{margin-right:var(--space-3)}.divider:not(:empty):after{margin-left:var(--space-3)}.google-btn{background-color:#fff;color:#333;border:none;font-weight:500;width:100%;display:flex;justify-content:center;align-items:center;gap:var(--space-3)}.google-btn:hover{background-color:#f1f1f1;transform:translateY(-1px)}.google-btn img{width:20px;height:20px}.auth-switch{text-align:center;margin-top:var(--space-5);font-size:.875rem;color:var(--text-secondary)}.auth-switch a{color:var(--accent-secondary);font-weight:500;cursor:pointer}.auth-switch a:hover{text-decoration:underline}.auth-error{color:var(--danger);background:#ef44441a;padding:var(--space-3);border-radius:var(--radius-sm);font-size:.875rem;text-align:center;margin-bottom:var(--space-4);display:none}.auth-error.visible{display:block}.auth-error.success-msg{color:var(--success);background:#10b9811a}.user-profile{display:none;align-items:center;gap:var(--space-4)}.user-email{font-size:.875rem;color:var(--text-secondary);font-weight:500}.btn-logout{padding:var(--space-2) var(--space-3);font-size:.875rem}.app-locked .app-layout{filter:blur(8px);pointer-events:none;-webkit-user-select:none;user-select:none}.reveal{opacity:0;transform:translateY(20px);will-change:opacity,transform}.reveal.active{animation:fadeInUp .6s cubic-bezier(.16,1,.3,1) forwards}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.item-enter{animation:slideDown .3s cubic-bezier(.16,1,.3,1) forwards}.item-exit{animation:slideUp .3s cubic-bezier(.16,1,.3,1) forwards}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px) scaleY(.9);transform-origin:top}to{opacity:1;transform:translateY(0) scaleY(1);transform-origin:top}}@keyframes slideUp{0%{opacity:1;transform:translateY(0) scaleY(1)}to{opacity:0;transform:translateY(-10px) scaleY(.9);margin-bottom:-60px}}.pulse-attention{animation:pulseShadow 2s infinite}@keyframes pulseShadow{0%{box-shadow:0 0 #e74c4c66}70%{box-shadow:0 0 0 10px #e74c4c00}to{box-shadow:0 0 #e74c4c00}}.loading-shimmer{position:relative;overflow:hidden}.loading-shimmer:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;transform:translate(-100%);background-image:linear-gradient(90deg,#fff0 0,#ffffff0d 20%,#ffffff1a 60%,#fff0);animation:shimmer 2s infinite}@keyframes shimmer{to{transform:translate(100%)}}