:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light;background-color:#f8fafc;background-image:radial-gradient(#e2e8f0 .5px,transparent .5px),radial-gradient(#e2e8f0 .5px,#f8fafc .5px);background-size:20px 20px;background-position:0 0,10px 10px;color:#1e293b;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}:root{--primary: #6366f1;--primary-dark: #4f46e5;--primary-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);--bg: #f8fafc;--card-bg: #ffffff;--text-main: #1e293b;--text-muted: #64748b;--accent: #f43f5e;--radius-lg: 28px;--radius-md: 18px;--radius-sm: 12px;--shadow-sm: 0 1px 3px rgba(0,0,0,.1);--shadow-md: 0 10px 25px -5px rgba(0, 0, 0, .05);--shadow-primary: 0 10px 20px -5px rgba(99, 102, 241, .3)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}body{margin:0;background-color:var(--bg);font-family:Pretendard,-apple-system,BlinkMacSystemFont,system-ui,Roboto,sans-serif;color:var(--text-main);line-height:1.6}.App{max-width:800px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column}.top-nav{position:sticky;top:0;background:#ffffffd9;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-bottom:1px solid #e2e8f0;z-index:1000;height:70px}.nav-container{padding:0 1.5rem;height:100%;display:flex;align-items:center;justify-content:space-between}.nav-logo{font-weight:900;font-size:1.5rem;background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;cursor:pointer}.nav-links{display:flex;gap:1rem}.nav-links button{background:none;border:none;font-size:.95rem;font-weight:700;color:var(--text-muted);cursor:pointer;padding:10px 8px;transition:all .2s;border-radius:10px}.nav-links button:hover{color:var(--primary);background:#f1f5f9}.nav-links button.active{color:var(--primary);background:#eef2ff}.mobile-menu-btn{display:none;background:#f1f5f9;border:none;padding:8px;border-radius:10px;cursor:pointer}.main-content{flex:1;padding:2rem 1.5rem}.page-title{font-size:1.75rem;font-weight:900;margin-bottom:.5rem;text-align:center}.home-hero{text-align:center;padding:5rem 1.5rem;background:#fff;border-radius:32px;box-shadow:var(--shadow-md);border:1px solid #f1f5f9}.hero-sparkle{color:#fbbf24;margin-bottom:1.5rem}.hero-buttons{display:flex;gap:1rem;justify-content:center;margin:3rem 0}.main-cta,.secondary-cta{padding:1.1rem 2.5rem;border-radius:20px;font-size:1.1rem;font-weight:800;cursor:pointer;display:flex;align-items:center;gap:10px;transition:all .2s}.main-cta{background:var(--primary-gradient);color:#fff;border:none;box-shadow:var(--shadow-primary)}.secondary-cta{background:#f1f5f9;color:var(--text-main);border:none}.main-cta:hover{transform:translateY(-2px);filter:brightness(1.05)}.home-features{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:4rem}.feat-item{background:#f8fafc;padding:1.5rem;border-radius:24px;font-weight:800}.feat-item span{display:block;font-size:2rem;margin-bottom:10px}.input-card{background:#fff;border-radius:28px;padding:2rem;box-shadow:var(--shadow-md);margin-bottom:1.5rem;border:1px solid #f1f5f9}.input-card h3{display:flex;align-items:center;gap:10px;margin-top:0;font-size:1.25rem;font-weight:800}.dropzone,.conv-dropzone{border:2px dashed #e2e8f0;border-radius:20px;padding:3rem 1.5rem;text-align:center;cursor:pointer;background:#fdfdfd;transition:all .2s}.dropzone:hover{border-color:var(--primary);background:#f5f7ff}.conv-preview img,.single-preview img,.conv-preview-small img{width:100%;max-width:400px;border-radius:16px;margin:0 auto;display:block;box-shadow:var(--shadow-sm)}.tabs-container{display:flex;background:#f1f5f9;padding:4px;border-radius:14px;margin-bottom:1.5rem}.tabs-container button{flex:1;border:none;padding:10px;border-radius:10px;font-size:.95rem;font-weight:700;color:var(--text-muted);cursor:pointer;background:transparent}.tabs-container button.active{background:#fff;color:var(--primary);box-shadow:var(--shadow-sm)}.styled-textarea{width:100%;border:1px solid #e2e8f0;border-radius:16px;padding:1.25rem;min-height:150px;font-family:inherit;resize:none}.styled-input{width:100%;padding:14px 18px;border-radius:12px;border:1px solid #e2e8f0;font-size:1rem}.options-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:1rem}.option-item label{display:block;font-size:.85rem;font-weight:700;color:var(--text-muted);margin-bottom:6px}.option-item input,.option-item select{width:100%;padding:12px;border-radius:10px;border:1px solid #e2e8f0;background:#fff}.magic-button{width:100%;background:var(--primary-gradient);color:#fff;border:none;padding:1.5rem;border-radius:24px;font-size:1.25rem;font-weight:800;cursor:pointer;box-shadow:var(--shadow-primary);transition:all .2s}.report-container{margin-top:3rem}.report-view{background:#fff;padding:3rem 2rem;border-radius:32px;box-shadow:var(--shadow-md);border:1px solid #f1f5f9}.report-badge{background:#eef2ff;color:var(--primary);padding:6px 14px;border-radius:20px;font-size:.8rem;font-weight:800;display:inline-block;margin-bottom:1rem}.report-title{font-size:1.75rem;font-weight:900;margin-bottom:2rem}.report-actions{display:flex;justify-content:flex-end;gap:10px;margin-bottom:1.5rem}.report-actions button{background:#fff;border:1px solid #e2e8f0;padding:10px 18px;border-radius:12px;display:flex;align-items:center;gap:8px;font-weight:700;font-size:.9rem;cursor:pointer}.grid-overlay-container{position:relative;width:100%;aspect-ratio:1/1;background:#000;border-radius:20px;overflow:hidden;margin-bottom:2rem}.grid-image{width:100%;height:100%;object-fit:contain}.styling-grid-overlay{position:absolute;top:0;left:0;width:100%;height:100%;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);pointer-events:none}.grid-cell-label{display:flex;align-items:flex-end;justify-content:center;padding-bottom:10px}.grid-cell-label span{background:#000000bf;color:#fff;padding:5px 10px;border-radius:8px;font-size:.7rem;font-weight:800;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);text-align:center}.report-body{line-height:1.8;color:#334155}.report-footer-logo{text-align:center;margin-top:3rem;color:#cbd5e1;font-weight:800;letter-spacing:2px}.result-buttons-group{display:flex;gap:1rem;margin-top:3rem}.reset-btn,.boost-btn{flex:1;padding:1.25rem;border-radius:20px;font-weight:800;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:10px}.reset-btn{background:#fff;border:1px solid #e2e8f0;color:var(--text-muted)}.boost-btn{background:var(--primary-gradient);color:#fff;border:none;box-shadow:var(--shadow-primary)}.article-list{display:flex;flex-direction:column;gap:1.25rem;margin-top:2rem}.article-card{background:#fff;padding:1.75rem;border-radius:24px;display:flex;align-items:center;gap:1.5rem;box-shadow:var(--shadow-md);cursor:pointer;transition:transform .2s}.article-card:hover{transform:translate(5px)}.article-card h4{margin:0 0 4px;font-size:1.15rem}.article-card p{margin:0;color:var(--primary);font-weight:700;font-size:.9rem}.guide-steps-detailed{display:flex;flex-direction:column;gap:1.5rem;margin:2.5rem 0}.step-item-large{background:#fff;padding:2rem;border-radius:28px;display:flex;gap:1.5rem;box-shadow:var(--shadow-md)}.step-icon-box{width:56px;height:56px;background:#eef2ff;color:var(--primary);border-radius:16px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.step-content h4{margin:0 0 8px;font-size:1.25rem;font-weight:800}.guide-tip{background:#fef9c3;color:#854d0e;padding:1.25rem;border-radius:16px;display:flex;align-items:center;gap:12px;font-weight:700}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0f172a99;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:2000;padding:1.5rem}.modal-content{background:#fff;width:100%;max-width:550px;max-height:85vh;border-radius:32px;padding:3.5rem 2.5rem;position:relative;overflow-y:auto}.close-modal{position:absolute;top:1.5rem;right:1.5rem;background:#f1f5f9;border:none;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer}.markdown-content h1{font-size:1.5rem;margin-bottom:1.5rem;border-bottom:2px solid #f1f5f9;padding-bottom:1rem}.contact-form-container h2{margin-top:0;margin-bottom:1.5rem;text-align:center}.contact-form-container .form-group{margin-bottom:1.25rem}.contact-form-container label{display:block;font-weight:700;margin-bottom:6px;font-size:.9rem}.contact-form-container input,.contact-form-container textarea{width:100%;padding:14px;border-radius:12px;border:1px solid #e2e8f0;font-family:inherit}.contact-form-container .send-btn{width:100%;padding:1rem;margin-top:1rem;border-radius:16px}.payment-modal{text-align:center}.price-tag{font-size:2rem;font-weight:900;color:var(--primary);margin:1.5rem 0}.advanced-footer{margin-top:auto;padding:5rem 1.5rem 3rem;text-align:center;border-top:1px solid #e2e8f0}.footer-links{display:flex;justify-content:center;gap:2rem;margin-bottom:2rem}.footer-links button{background:none;border:none;color:var(--text-muted);font-size:.9rem;font-weight:700;cursor:pointer}.copyright{font-size:.85rem;color:#cbd5e1;font-weight:600}@media(max-width:768px){.nav-links{display:none;flex-direction:column;position:absolute;top:70px;left:0;right:0;background:#fff;padding:1.5rem;border-bottom:1px solid #e2e8f0;box-shadow:0 10px 15px #0000000d;gap:1rem}.nav-links.open{display:flex}.mobile-menu-btn{display:block}.hero-buttons{flex-direction:column}.home-features,.options-grid{grid-template-columns:1fr}.result-buttons-group{flex-direction:column}.step-item-large{flex-direction:column;align-items:center;text-align:center}}.slide-up{animation:slideUp .6s cubic-bezier(.16,1,.3,1)}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.spin{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}