:root{--primary: #6366f1;--primary-dark: #4f46e5;--primary-light: #eef2ff;--text-main: #1e293b;--text-muted: #64748b;--bg-app: #f8fafc;--card-bg: #ffffff;--accent: #f43f5e;--radius: 16px;--radius-lg: 24px;--shadow: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1)}body{margin:0;font-family:Plus Jakarta Sans,sans-serif;background-color:var(--bg-app);color:var(--text-main);-webkit-font-smoothing:antialiased}.landing-page{min-height:100vh;background:#fff;display:flex;flex-direction:column}.landing-header{padding:20px 40px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #f1f5f9;position:sticky;top:0;background:#fffc;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:100}.header-nav{display:flex;gap:12px;align-items:center}.landing-main{flex:1;max-width:1200px;margin:0 auto;padding:60px 24px}.hero{display:grid;grid-template-columns:1.2fr 1fr;gap:80px;align-items:center;margin-bottom:120px}@media (max-width: 900px){.hero{grid-template-columns:1fr;text-align:center;gap:60px}}.badge-new{display:inline-flex;align-items:center;gap:6px;background:var(--primary-light);color:var(--primary);padding:6px 14px;border-radius:99px;font-size:.85rem;font-weight:600;margin-bottom:24px}.hero-title{font-size:clamp(3rem,6vw,4.5rem);font-weight:800;line-height:1.05;margin-bottom:24px;letter-spacing:-.03em}.text-gradient{background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero-subtitle{font-size:1.25rem;color:var(--text-muted);margin-bottom:40px;max-width:520px;line-height:1.6}@media (max-width: 900px){.hero-subtitle{margin:0 auto 40px}}.user-trust{margin-top:48px;display:flex;align-items:center;gap:16px}@media (max-width: 900px){.user-trust{justify-content:center}}.avatar-group{display:flex}.mini-avatar{width:32px;height:32px;border-radius:50%;border:2px solid white;margin-left:-8px;display:flex;align-items:center;justify-content:center;font-size:.65rem;color:#fff;font-weight:700}.mini-avatar:first-child{margin-left:0}.user-trust p{font-size:.85rem;color:var(--text-muted);margin:0}.hero-actions{display:flex;gap:16px}@media (max-width: 900px){.hero-actions{justify-content:center}}.btn-primary-large{background:var(--primary);color:#fff;border:none;padding:18px 36px;border-radius:14px;font-weight:600;font-size:1.1rem;display:flex;align-items:center;gap:10px;cursor:pointer;transition:all .2s}.btn-primary-large:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 10px 20px -10px var(--primary)}.btn-secondary{background:var(--text-main);color:#fff;border:none;padding:10px 20px;border-radius:10px;font-weight:600;cursor:pointer}.btn-ghost{background:transparent;border:none;padding:10px 20px;border-radius:10px;font-weight:600;cursor:pointer;color:var(--text-muted)}.hero-preview{position:relative}.preview-card{background:#fff;border-radius:var(--radius-lg);box-shadow:0 30px 60px -12px #0003;overflow:hidden;border:4px solid white}.preview-header{background:#f8fafc;padding:14px;display:flex;gap:8px;border-bottom:1px solid #f1f5f9}.preview-header .dot{width:10px;height:10px;border-radius:50%;background:#e2e8f0}.preview-img{width:100%;height:auto;display:block}.floating-ui-card{position:absolute;bottom:20px;left:-40px;background:#fff;padding:16px 24px;border-radius:16px;box-shadow:0 10px 30px #0000001a;display:flex;align-items:center;gap:12px;font-weight:600}@media (max-width: 900px){.floating-ui-card{left:20px}}.info-section{padding:100px 0;text-align:center}.section-header h2{font-size:2.5rem;font-weight:800;margin-bottom:16px}.section-header p{font-size:1.2rem;color:var(--text-muted);margin-bottom:60px}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:32px}.feature-card{padding:40px;background:#f8fafc;border-radius:var(--radius-lg);transition:all .3s;text-align:left}.feature-card:hover{background:#fff;box-shadow:0 20px 40px -10px #00000014}.feature-icon{width:56px;height:56px;background:var(--primary-light);color:var(--primary);border-radius:16px;display:flex;align-items:center;justify-content:center;margin-bottom:24px}.visual-section{margin-bottom:120px}.visual-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}@media (max-width: 768px){.visual-grid{grid-template-columns:1fr}}.visual-item{position:relative;border-radius:var(--radius-lg);overflow:hidden;height:400px}.visual-item img{width:100%;height:100%;object-fit:cover}.visual-overlay{position:absolute;bottom:0;left:0;right:0;padding:40px;background:linear-gradient(to top,rgba(0,0,0,.8),transparent);color:#fff}.visual-overlay h4{font-size:1.5rem;margin:0 0 8px}.visual-overlay p{margin:0;opacity:.8}.cta-banner{background:var(--primary-light);padding:80px;border-radius:var(--radius-lg);text-align:center}@media (max-width: 768px){.cta-banner{padding:40px 20px}}.cta-content h3{font-size:2.5rem;font-weight:800;margin-bottom:16px}.cta-content p{font-size:1.2rem;color:var(--text-muted);margin-bottom:40px}.cta-content button{margin:0 auto}.landing-footer{padding:100px 40px 40px;background:#f8fafc;margin-top:120px}.footer-links{max-width:1200px;margin:0 auto 80px;display:grid;grid-template-columns:2fr 1fr 1fr;gap:80px}@media (max-width: 768px){.footer-links{grid-template-columns:1fr;gap:40px}}.footer-col h4{margin-bottom:24px}.footer-col span{display:block;margin-bottom:12px;color:var(--text-muted);cursor:pointer}.footer-bottom{text-align:center;border-top:1px solid #e2e8f0;padding-top:40px;color:var(--text-muted)}.app-container{max-width:480px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column}.app-header{padding:24px;background:#fff;border-bottom:1px solid #e2e8f0;display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:10}.logo{font-weight:800;font-size:1.25rem;color:var(--primary);display:flex;align-items:center;gap:8px}.app-main{padding:20px;flex:1}.card{background:var(--card-bg);border-radius:var(--radius);padding:20px;margin-bottom:20px;box-shadow:var(--shadow);border:1px solid rgba(0,0,0,.05)}.section-title{font-size:1.1rem;font-weight:600;margin-bottom:16px;display:flex;align-items:center;gap:8px}.housemate-scroll{display:flex;gap:12px;overflow-x:auto;padding-bottom:8px;scrollbar-width:none}.housemate-avatar{flex-shrink:0;text-align:center}.avatar-circle{width:56px;height:56px;border-radius:50%;background:var(--primary-light);display:flex;align-items:center;justify-content:center;font-weight:600;color:var(--primary);border:2px solid white;box-shadow:0 2px 4px #0000000d}.avatar-name{font-size:.75rem;margin-top:6px;color:var(--text-muted)}.task-item{display:flex;align-items:center;padding:12px 0;border-bottom:1px solid #f1f5f9}.task-item:last-child{border-bottom:none}.task-checkbox{width:20px;height:20px;border-radius:6px;border:2px solid #cbd5e1;margin-right:12px;cursor:pointer;display:flex;align-items:center;justify-content:center}.task-checkbox.checked{background:var(--primary);border-color:var(--primary)}.task-info{flex:1}.task-title{font-weight:500;font-size:.95rem}.task-meta{font-size:.8rem;color:var(--text-muted)}.expense-item{display:flex;justify-content:space-between;align-items:center;padding:16px;background:#f8fafc;border-radius:12px;margin-bottom:12px}.amount-positive{color:#10b981;font-weight:600}.amount-negative{color:#f43f5e;font-weight:600}.nav-bar{background:#fff;padding:12px 24px;display:flex;justify-content:space-around;border-top:1px solid #e2e8f0;position:sticky;bottom:0}.nav-item{display:flex;flex-direction:column;align-items:center;gap:4px;color:var(--text-muted);cursor:pointer;font-size:.7rem}.nav-item.active{color:var(--primary)}.floating-btn{background:var(--primary);color:#fff;width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;position:fixed;right:20px;bottom:80px;box-shadow:0 4px 12px #6366f166;cursor:pointer;border:none}.status-badge{padding:4px 10px;border-radius:99px;font-size:.75rem;background:var(--primary-light);color:var(--primary);font-weight:600}