:root{--bg-primary:#1461ed;--bg-card:#fff;--bg-input:#f8f9fb;--text-primary:#1a1a2e;--text-secondary:#555770;--text-muted:#8e90a6;--border-color:#e2e4ea;--accent:#1461ed;--accent-light:#eef2ff;--accent-hover:#1461ed;--success:#10b981;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--shadow-sm:0 1px 3px #0000000f;--shadow-md:0 4px 16px #00000014;--shadow-lg:0 8px 32px #0000001a;--transition:.2s ease}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{color:var(--text-primary);-webkit-font-smoothing:antialiased;background-color:#0a1628;background-image:radial-gradient(80% 60% at 20% 10%,#1461ed8c 0%,#0000 60%),radial-gradient(60% 50% at 80% 80%,#63b3ed4d 0%,#0000 55%),radial-gradient(50% 40% at 60% 20%,#8b5cf640 0%,#0000 50%),linear-gradient(135deg,#0a1628 0%,#0d1f3c 50%,#0a1628 100%);background-position:0 0;background-repeat:repeat;background-size:auto;background-attachment:fixed;background-origin:padding-box;background-clip:border-box;min-height:100vh;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.6}#app-header{z-index:100;-webkit-backdrop-filter:blur(24px)saturate(180%)brightness(1.08);background:linear-gradient(135deg,#ffffff2e 0%,#ffffff14 40%,#1461ed1f 70%,#ffffff1a 100%);border-bottom:.2px solid #ffffff40;padding:20px 32px;position:sticky;top:0;overflow:hidden;box-shadow:inset 0 -1px #00000014,0 8px 32px #00000040,0 2px 8px #1461ed26}#app-header:before{content:"";pointer-events:none;background:linear-gradient(105deg,#fff0 0%,#ffffff2e 30%,#fff0 60%);position:absolute;inset:0}#app-header:after{content:"";pointer-events:none;background:linear-gradient(90deg,#0000,#ffffff1f,#0000);width:40%;height:100%;position:absolute;top:0;left:-60%}.header-content{justify-content:space-between;align-items:center;max-width:1280px;margin:0 auto;display:flex}.logo{align-items:center;gap:10px;display:flex}.logo-icon{align-items:center;display:flex}.logo-img{filter:drop-shadow(0 1px 4px #00000040);width:auto;height:36px}.logo h1{color:#fff;letter-spacing:-.5px;text-shadow:0 1px 3px #0003;font-size:22px;font-weight:700}.logo .highlight{color:#90c4ff}.subtitle{color:#fff9;font-size:14px;font-weight:400}#app-main{max-width:1280px;margin:0 auto;padding:28px 32px}.app-grid{grid-template-columns:1fr 1fr;align-items:start;gap:28px;display:grid}.form-panel,.preview-panel{background:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--border-color);overflow:hidden}.panel-header{border-bottom:1px solid var(--border-color);background:var(--bg-card);justify-content:space-between;align-items:center;padding:20px 24px;display:flex}.panel-header h2{color:var(--text-primary);font-size:16px;font-weight:600}.form-section{border-bottom:1px solid var(--border-color);padding:20px 24px}.form-section:last-child{border-bottom:none}.form-section h3{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:14px;font-size:13px;font-weight:600}.form-group{margin-bottom:14px}.form-group:last-child{margin-bottom:0}.form-group label{color:var(--text-secondary);margin-bottom:5px;font-size:13px;font-weight:500;display:block}.form-group input[type=text],.form-group input[type=email],.form-group input[type=url],.form-group input[type=tel]{border:1.5px solid var(--border-color);border-radius:var(--radius-sm);background:var(--bg-input);width:100%;color:var(--text-primary);transition:border-color var(--transition), box-shadow var(--transition);outline:none;padding:10px 14px;font-family:inherit;font-size:14px}.form-group input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-light);background:#fff}.form-group input::placeholder{color:var(--text-muted);font-weight:400}.photo-upload-area{align-items:center;gap:16px;display:flex}.photo-preview-wrapper{background:var(--bg-input);border:2px dashed var(--border-color);cursor:pointer;width:80px;height:80px;transition:border-color var(--transition);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.photo-preview-wrapper:hover{border-color:var(--accent)}.photo-preview-wrapper img{object-fit:cover;width:100%;height:100%;display:block}.photo-placeholder{text-align:center;color:var(--text-muted)}.photo-placeholder span{font-size:24px;display:block}.photo-placeholder p{margin-top:2px;font-size:9px}.photo-controls{margin-top:14px}.range-label{color:var(--text-secondary);justify-content:space-between;margin-top:10px;margin-bottom:4px;font-size:12px;display:flex}.range-label:first-child{margin-top:0}.range-input{appearance:none;background:var(--bg-input);border:1px solid var(--border-color);cursor:pointer;border-radius:3px;outline:none;width:100%;height:6px}.range-input::-webkit-slider-thumb{appearance:none;background:var(--accent);cursor:pointer;width:18px;height:18px;transition:transform var(--transition);border-radius:50%;box-shadow:0 2px 6px #4f46e54d}.range-input::-webkit-slider-thumb:hover{transform:scale(1.15)}.color-picker-row{align-items:center;gap:10px;display:flex}.color-input{appearance:none;border:2px solid var(--border-color);border-radius:var(--radius-sm);cursor:pointer;background:var(--bg-input);width:40px;height:34px;padding:2px}.color-input::-webkit-color-swatch-wrapper{padding:0}.color-input::-webkit-color-swatch{border:none;border-radius:4px}.color-hex{color:var(--text-muted);font-family:SF Mono,Fira Code,monospace;font-size:13px}.btn{cursor:pointer;border-radius:var(--radius-sm);transition:all var(--transition);white-space:nowrap;border:none;align-items:center;gap:6px;font-family:inherit;font-weight:500;display:inline-flex}.btn-primary{background:var(--accent);color:#fff;padding:10px 18px;font-size:13px;box-shadow:0 2px 8px #4f46e540}.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 4px 14px #4f46e559}.btn-primary:active{transform:translateY(0)}.btn-outline{color:var(--accent);border:1.5px solid var(--accent);background:0 0;padding:8px 14px;font-size:12px}.btn-outline:hover{background:var(--accent-light)}.btn-ghost{color:var(--text-muted);background:0 0;padding:6px 10px;font-size:12px}.btn-ghost:hover{color:#e53e3e;background:#fff5f5}.btn-sm{padding:6px 12px;font-size:12px}.btn-icon{font-size:14px}.preview-panel{position:sticky;top:90px}.preview-card{border-radius:var(--radius-md);border:1px solid var(--border-color);box-shadow:var(--shadow-sm);margin:20px;overflow:hidden}.preview-email-header{border-bottom:1px solid var(--border-color);background:#f7f8fa;align-items:center;gap:12px;padding:10px 14px;display:flex}.email-dots{gap:5px;display:flex}.email-dots span{background:#ddd;border-radius:50%;width:10px;height:10px}.email-dots span:first-child{background:#ff5f57}.email-dots span:nth-child(2){background:#ffbd2e}.email-dots span:nth-child(3){background:#28ca41}.email-bar{background:#eee;border-radius:4px;flex:1;height:8px}.preview-body{background:#fff;padding:20px}.email-mock-text{margin-bottom:16px}.mock-line{background:#f0f0f0;border-radius:4px;height:8px;margin-bottom:8px}.mock-line.w100{width:100%}.mock-line.w90{width:90%}.mock-line.w80{width:80%}.mock-line.w60{width:60%}.mock-line.w40{width:40%}.signature-divider{background:#e0e0e0;height:1px;margin:16px 0}.copy-toast{background:var(--text-primary);color:#fff;box-shadow:var(--shadow-lg);opacity:0;pointer-events:none;z-index:999;border-radius:50px;padding:12px 24px;font-size:14px;font-weight:500;transition:all .35s cubic-bezier(.2,.8,.2,1);position:fixed;bottom:30px;left:50%;transform:translate(-50%)translateY(80px)}.copy-toast.show{opacity:1;transform:translate(-50%)translateY(0)}.instructions-box{background:var(--accent-light);border-radius:var(--radius-md);border:1px solid #4f46e51a;margin:0 20px 20px;padding:16px 20px}.instructions-box h4{color:var(--accent);margin-bottom:8px;font-size:13px;font-weight:600}.instructions-box ol{color:var(--text-secondary);padding-left:18px;font-size:12px;line-height:1.8}.char-counter{align-items:center;gap:10px;margin:0 20px 12px;display:flex}.char-bar-wrap{background:var(--border-color);border-radius:3px;flex:1;height:5px;overflow:hidden}.char-bar{background:#10b981;border-radius:3px;width:0;height:100%;transition:width .3s,background .3s}#char-label{color:var(--text-muted);white-space:nowrap;font-variant-numeric:tabular-nums;font-size:11px}.crop-modal-overlay{z-index:1000;-webkit-backdrop-filter:blur(8px);background:#000000a6;justify-content:center;align-items:center;animation:.25s crop-overlay-in;display:flex;position:fixed;inset:0}@keyframes crop-overlay-in{0%{opacity:0}to{opacity:1}}.crop-modal{background:var(--bg-card);border-radius:var(--radius-lg);width:420px;max-width:95vw;animation:.3s cubic-bezier(.2,.8,.2,1) crop-modal-in;overflow:hidden;box-shadow:0 24px 80px #00000059,0 0 0 1px #ffffff1a}@keyframes crop-modal-in{0%{opacity:0;transform:scale(.92)translateY(20px)}to{opacity:1;transform:scale(1)translateY(0)}}.crop-modal-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:18px 24px;display:flex}.crop-modal-header h3{color:var(--text-primary);font-size:16px;font-weight:600}.crop-modal-close{cursor:pointer;color:var(--text-muted);transition:all var(--transition);background:0 0;border:none;border-radius:6px;padding:4px;display:flex}.crop-modal-close:hover{color:var(--text-primary);background:#f5f5f5}.crop-modal-body{flex-direction:column;align-items:center;gap:16px;padding:24px;display:flex}.crop-hint{color:var(--text-muted);text-align:center;font-size:12px}.crop-canvas-container{width:300px;height:300px;box-shadow:0 0 0 4px var(--bg-card), 0 0 0 5px var(--border-color), 0 8px 32px #00000026;border-radius:50%;position:relative;overflow:hidden}.crop-checkerboard{background-image:linear-gradient(45deg,#e0e0e0 25%,#0000 25%),linear-gradient(-45deg,#e0e0e0 25%,#0000 25%),linear-gradient(45deg,#0000 75%,#e0e0e0 75%),linear-gradient(-45deg,#0000 75%,#e0e0e0 75%);background-position:0 0,0 8px,8px -8px,-8px 0;background-size:16px 16px;border-radius:50%;position:absolute;inset:0}.crop-canvas{touch-action:none;-webkit-user-select:none;user-select:none;display:block;position:relative}.crop-controls{flex-direction:column;align-items:center;gap:6px;width:100%;display:flex}.crop-zoom-row{align-items:center;gap:10px;width:100%;display:flex}.crop-zoom-icon{color:var(--text-muted);flex-shrink:0}.crop-zoom-slider{flex:1}.crop-zoom-label{color:var(--text-muted);font-variant-numeric:tabular-nums;font-family:SF Mono,Fira Code,monospace;font-size:12px}.crop-modal-footer{border-top:1px solid var(--border-color);background:#fafafa;justify-content:flex-end;gap:10px;padding:16px 24px;display:flex}#app-footer{text-align:center;color:#fff6;padding:24px;font-size:13px}@media (width<=900px){.app-grid{grid-template-columns:1fr}.preview-panel{position:static}#app-main{padding:16px}.header-content{text-align:center;flex-direction:column;gap:4px}.preview-actions{flex-direction:column}}@media (width<=480px){#app-header{padding:14px 16px}.panel-header{flex-direction:column;align-items:flex-start;gap:10px}}