:root{--color-bg: #f5f7f5;--color-surface: #ffffff;--color-border: #e2e8e4;--color-text: #1f2a24;--color-text-muted: #667169;--color-primary: #2f6f4f;--color-primary-dark: #24583e;--color-danger: #c94b4b;--color-accent: #f4b400;--radius: 14px;--shadow: 0 1px 3px rgba(0, 0, 0, .08), 0 1px 2px rgba(0, 0, 0, .06)}@media(prefers-color-scheme:dark){:root{--color-bg: #14201a;--color-surface: #1b2b22;--color-border: #2c3d33;--color-text: #eef3ef;--color-text-muted: #9db3a5;--color-primary: #4c9d72;--color-primary-dark: #3f8a62}}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--color-bg);color:var(--color-text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}button,input,select{font:inherit;color:inherit}.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.login-card{width:100%;max-width:360px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow);padding:32px 28px;text-align:center}.login-logo{width:64px;height:64px;margin-bottom:12px}.login-card h1{margin:0 0 4px;font-size:1.4rem}.muted{color:var(--color-text-muted);font-size:.9rem;margin:0 0 20px}.app-shell{min-height:100vh;display:flex;flex-direction:column}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;padding:14px 16px;background:var(--color-primary);color:#fff}.topbar-title{font-weight:600}.topbar-user{display:flex;align-items:center;gap:10px;font-size:.9rem;opacity:.95}.app-main{flex:1;width:100%;max-width:720px;margin:0 auto;padding:16px 16px 96px}.bottom-nav{position:fixed;bottom:0;left:0;right:0;display:flex;background:var(--color-surface);border-top:1px solid var(--color-border);padding-bottom:env(safe-area-inset-bottom);z-index:10}.bottom-nav-item{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:10px 0 8px;background:none;border:none;color:var(--color-text-muted);font-size:.75rem;cursor:pointer}.bottom-nav-item.active{color:var(--color-primary);font-weight:600}.bottom-nav-icon{font-size:1.3rem}.page{display:flex;flex-direction:column;gap:16px}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}.card-title{margin:0 0 14px;font-size:1.05rem}.card-title-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.card-title-row .card-title{margin:0}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field{display:flex;flex-direction:column;gap:4px;font-size:.8rem;color:var(--color-text-muted)}.field-wide{grid-column:1 / -1}input,select{background:var(--color-bg);border:1px solid var(--color-border);border-radius:10px;padding:10px 12px;font-size:.95rem;color:var(--color-text)}input:focus,select:focus{outline:2px solid var(--color-primary);outline-offset:1px}.btn{border:none;border-radius:10px;padding:11px 18px;font-size:.95rem;font-weight:600;cursor:pointer}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-dark)}.btn-primary:disabled{opacity:.6;cursor:default}.link-btn{background:none;border:none;color:inherit;text-decoration:underline;cursor:pointer;font-size:.85rem;padding:0}.icon-btn{background:none;border:none;color:var(--color-text-muted);cursor:pointer;font-size:1rem;padding:6px;line-height:1}.icon-btn:hover{color:var(--color-danger)}.error-text{color:var(--color-danger);font-size:.85rem;margin:0}.empty-state{color:var(--color-text-muted);font-size:.9rem;text-align:center;padding:20px 0}.item-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}.item-row{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 0;border-bottom:1px solid var(--color-border)}.item-row:last-child{border-bottom:none}.item-row.checked .item-title{text-decoration:line-through;color:var(--color-text-muted)}.item-main{display:flex;flex-direction:column;gap:2px;min-width:0}.item-title{font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.item-sub{font-size:.78rem;color:var(--color-text-muted)}.item-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}.item-amount{font-weight:600;white-space:nowrap}.shopping-check{display:flex;align-items:center;gap:12px;min-width:0;cursor:pointer}.shopping-check input[type=checkbox]{width:20px;height:20px;accent-color:var(--color-primary);flex-shrink:0}.summary-total{font-size:1.4rem;font-weight:700;margin:0 0 14px}.summary-columns{display:grid;grid-template-columns:1fr 1fr;gap:20px}.summary-heading{font-size:.8rem;text-transform:uppercase;letter-spacing:.03em;color:var(--color-text-muted);margin:0 0 8px}.summary-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px;font-size:.9rem}.summary-list li{display:flex;justify-content:space-between;gap:8px}.month-picker{width:auto}.shopping-form{display:flex;gap:8px;flex-wrap:wrap;padding:14px}.shopping-input-name{flex:1;min-width:140px}.shopping-input-qty{width:90px}@media(max-width:480px){.form-grid{grid-template-columns:1fr}.summary-columns{grid-template-columns:1fr;gap:14px}}