:root{--primary:#1e3a8a;--secondary:#2563eb;--accent:#f59e0b;--bg-dark:#0f172a;--bg-sidebar:#f8fafc;--bg-panel:#fff;--text-main:#1e293b;--text-muted:#64748b;--border-light:#e2e8f0}*{box-sizing:border-box;margin:0;padding:0;font-family:Inter,Pretendard,sans-serif}body{color:var(--text-main);-webkit-font-smoothing:antialiased;background-color:#f1f5f9}.app-container{height:100vh;display:flex;overflow:hidden}.sidebar{background-color:var(--bg-panel);border-right:1px solid var(--border-light);flex-direction:column;width:280px;padding:1.5rem;display:flex}.logo-area{color:var(--primary);align-items:center;gap:.5rem;margin-bottom:2rem;font-size:1.25rem;font-weight:700;display:flex}.nav-link{color:var(--text-main);border-radius:.5rem;align-items:center;gap:.75rem;margin-bottom:.5rem;padding:.75rem 1rem;font-weight:500;text-decoration:none;transition:all .2s;display:flex}.nav-link:hover,.nav-link.active{color:var(--secondary);background-color:#eff6ff}.main-content{flex-direction:column;flex:1;padding:2rem;display:flex;overflow-y:auto}.page-header{justify-content:space-between;align-items:center;margin-bottom:2rem;display:flex}.page-title{font-size:1.5rem;font-weight:700}.card{background:var(--bg-panel);border-radius:1rem;margin-bottom:1.5rem;padding:1.5rem;box-shadow:0 4px 6px -1px #0000000d,0 2px 4px -1px #00000008}.btn{cursor:pointer;border:none;border-radius:.5rem;justify-content:center;align-items:center;gap:.5rem;padding:.75rem 1.25rem;font-weight:600;transition:all .2s;display:inline-flex}.btn-primary{background-color:var(--primary);color:#fff}.btn-primary:hover{background-color:var(--secondary);box-shadow:0 4px 12px #2563eb4d}.btn-accent{background-color:var(--accent);color:#fff}.editor-container{grid-template-columns:2fr 1fr;gap:1.5rem;height:calc(100vh - 8rem);display:grid}.editor-main{background:#fff;border-radius:1rem;flex-direction:column;display:flex;box-shadow:0 4px 6px -1px #0000000d}.editor-toolbar{border-bottom:1px solid var(--border-light);gap:1rem;padding:1rem;display:flex}.editor-textarea{resize:none;color:#334155;border:none;outline:none;flex:1;padding:2rem;font-size:1.1rem;line-height:1.8}.ai-sidebar{color:#fff;background:linear-gradient(145deg,#1e3a8a 0%,#0f172a 100%);border-radius:1rem;flex-direction:column;padding:1.5rem;display:flex}.ai-recommendation-card{cursor:pointer;background:#ffffff1a;border:1px solid #fff3;border-radius:.75rem;margin-top:1rem;padding:1rem;transition:all .2s}.ai-recommendation-card:hover{background:#fff3;transform:translateY(-2px)}.budget-table{border-collapse:collapse;width:100%}.budget-table th,.budget-table td{text-align:left;border-bottom:1px solid var(--border-light);padding:1rem}.budget-input{border:1px solid var(--border-light);border-radius:.25rem;width:100%;padding:.5rem}.pricing-cards{justify-content:center;align-items:center;gap:2rem;margin-top:3rem;display:flex}.pricing-card{text-align:center;background:#fff;border-radius:1rem;width:320px;padding:2.5rem;box-shadow:0 10px 15px -3px #0000001a}.pricing-card.premium{border:2px solid var(--primary);transform:scale(1.05)}.price{margin:1.5rem 0;font-size:2.5rem;font-weight:800}