:root{--color-bg: #f4f5f7;--color-surface: #ffffff;--color-border: #e0e2e7;--color-text: #1f2430;--color-text-muted: #6b7280;--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-danger: #dc2626;--color-danger-hover: #b91c1c;--radius: 8px}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:-apple-system,Segoe UI,Hiragino Sans,Hiragino Kaku Gothic ProN,Noto Sans JP,sans-serif;background-color:var(--color-bg);color:var(--color-text)}h1,h2,h3{margin:0 0 .5rem}a{color:var(--color-primary);text-decoration:none}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.6rem 1.2rem;font-size:.95rem;font-weight:600;border-radius:var(--radius);border:1px solid transparent;cursor:pointer;transition:background-color .15s ease}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover{background-color:var(--color-primary-hover)}.btn-secondary{background-color:var(--color-surface);color:var(--color-text);border-color:var(--color-border)}.btn-secondary:hover{background-color:var(--color-bg)}.btn-danger{background-color:#fff;color:var(--color-danger);border-color:var(--color-danger)}.btn-danger:hover{background-color:var(--color-danger-hover);color:#fff}.btn-block{width:100%}.form-field{display:flex;flex-direction:column;gap:.35rem;margin-bottom:1rem}.form-field label{font-size:.875rem;font-weight:600;color:var(--color-text-muted)}.form-field input,.form-field select,.form-field textarea{padding:.6rem .75rem;font-size:1rem;font-family:inherit;border:1px solid var(--color-border);border-radius:var(--radius);background-color:var(--color-surface)}.form-field textarea{resize:vertical}.form-field input:focus,.form-field select:focus,.form-field textarea:focus{outline:2px solid var(--color-primary);outline-offset:1px}.form-error{color:var(--color-danger);font-size:.875rem;margin:-.25rem 0 1rem}.form-success{color:var(--color-success, #2e7d32);font-size:.875rem;margin:-.25rem 0 1rem}.estimated-profit{font-weight:600;background:var(--color-surface-alt, #f5f5f5);border-radius:.375rem;padding:.5rem .75rem;margin:0 0 1rem}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 1rem}.form-grid .form-field--full{grid-column:1 / -1}.form-section-title{font-size:.95rem;font-weight:700;margin:1.25rem 0 .5rem}.checkbox-field{display:flex;align-items:center;gap:.5rem;margin-bottom:1rem}.item-specifics-row{display:flex;gap:.5rem;margin-bottom:.5rem}.item-specifics-row input,.item-specifics-row select{flex:1;padding:.5rem .65rem;border:1px solid var(--color-border);border-radius:var(--radius);font-family:inherit;font-size:1rem}.item-specifics-row__label{flex:0 0 160px;display:flex;align-items:center;font-size:.875rem;font-weight:600;color:var(--color-text-muted)}.item-specifics-custom-label{font-size:.8rem;color:var(--color-text-muted);margin:.75rem 0 .25rem}.btn-link{display:inline-flex;align-items:center;background:none;border:none;padding:0;color:var(--color-primary);font-size:.875rem;font-weight:600;cursor:pointer;text-decoration:underline}.btn-link:hover{opacity:.8}.btn-link:disabled{color:var(--color-text-muted);cursor:not-allowed;text-decoration:none}.category-search-row{display:flex;gap:.5rem}.category-search-row input{flex:1}.category-selected{margin-top:.35rem;font-size:.875rem;color:var(--color-text-muted)}.category-search-results{list-style:none;margin:.35rem 0 0;padding:0;border:1px solid var(--color-border);border-radius:var(--radius);max-height:180px;overflow-y:auto}.category-search-results li{padding:.5rem .65rem;font-size:.875rem;cursor:pointer;border-bottom:1px solid var(--color-border)}.category-search-results li:last-child{border-bottom:none}.category-search-results li:hover{background-color:var(--color-bg)}.image-upload-grid{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:.75rem}.image-thumb{position:relative;width:90px;height:90px;border:1px solid var(--color-border);border-radius:var(--radius);overflow:hidden}.image-thumb img{width:100%;height:100%;object-fit:cover;display:block}.image-thumb__remove{position:absolute;top:2px;right:2px;width:22px;height:22px;border:none;border-radius:50%;background:#0f172aa6;color:#fff;font-size:.85rem;line-height:1;cursor:pointer}.auth-page{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:1rem}.auth-card{width:100%;max-width:380px;background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:2rem;box-shadow:0 1px 3px #0000000f}.auth-card h1{font-size:1.4rem;margin-bottom:1.5rem;text-align:center}.auth-card__footer{margin-top:1.25rem;text-align:center;font-size:.9rem;color:var(--color-text-muted)}.app-layout{display:flex;flex-direction:column;min-height:100vh}.app-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.75rem 1.5rem;background-color:var(--color-surface);border-bottom:1px solid var(--color-border)}.app-header__brand{font-weight:700;font-size:1.05rem;white-space:nowrap}.app-nav{display:flex;gap:1.25rem;flex:1}.app-nav a{color:var(--color-text-muted);font-weight:600;padding:.4rem 0;border-bottom:2px solid transparent}.app-nav a.active,.app-nav a:hover{color:var(--color-primary);border-bottom-color:var(--color-primary)}.app-header__user{display:flex;align-items:center;gap:.75rem}.app-header__email{font-size:.875rem;color:var(--color-text-muted)}.app-main{flex:1;padding:1.5rem;max-width:1100px;width:100%;margin:0 auto}.loading-screen{display:flex;align-items:center;justify-content:center;min-height:100vh;color:var(--color-text-muted)}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.5rem}.tabs{display:flex;gap:.25rem;border-bottom:1px solid var(--color-border);margin-bottom:1.5rem}.tab{padding:.6rem 1.25rem;font-size:.95rem;font-weight:600;color:var(--color-text-muted);background:none;border:none;border-bottom:2px solid transparent;cursor:pointer}.tab.active{color:var(--color-primary);border-bottom-color:var(--color-primary)}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1rem}.empty-state{padding:3rem 1rem;text-align:center;color:var(--color-text-muted);border:1px dashed var(--color-border);border-radius:var(--radius)}.listing-card{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:1rem;display:flex;flex-direction:column}.listing-card h3{font-size:1rem}.listing-card__meta{font-size:.85rem;color:var(--color-text-muted)}.listing-card__image{width:100%;aspect-ratio:1 / 1;object-fit:cover;border-radius:var(--radius);margin-bottom:.75rem;background-color:var(--color-bg)}.listing-card__image--placeholder{display:flex;align-items:center;justify-content:center;color:var(--color-text-muted);font-size:.8rem;border:1px dashed var(--color-border)}.listing-card__actions{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.75rem}.listing-card__error{color:var(--color-danger);font-size:.8rem;margin-top:.5rem}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background-color:#0f172a73;display:flex;align-items:center;justify-content:center;padding:1rem;z-index:50}.modal{width:100%;max-width:480px;background-color:var(--color-surface);border-radius:var(--radius);padding:1.5rem;box-shadow:0 10px 30px #00000026;max-height:90vh;overflow-y:auto}.modal--wide{max-width:760px}.modal__header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}.modal__close{background:none;border:none;font-size:1.25rem;line-height:1;cursor:pointer;color:var(--color-text-muted)}.modal__footer{display:flex;justify-content:flex-end;gap:.5rem;margin-top:1.5rem}.settings-section{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:1.5rem;margin-bottom:1.5rem}.settings-section h2{font-size:1.1rem;margin-bottom:1rem}.settings-section__description{font-size:.875rem;color:var(--color-text-muted);margin:-.5rem 0 1rem}.settings-actions{display:flex;gap:.75rem;flex-wrap:wrap}.plan-status{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem}.badge{display:inline-flex;align-items:center;padding:.25rem .65rem;border-radius:999px;font-size:.8rem;font-weight:600}.badge-active{background-color:#dcfce7;color:#15803d}.badge-inactive{background-color:#fee2e2;color:#b91c1c}.badge-canceled{background-color:#fef3c7;color:#b45309}.chip-list{display:flex;flex-wrap:wrap;gap:.5rem}.chip{display:inline-flex;align-items:center;gap:.4rem;padding:.25rem .5rem .25rem .65rem;border-radius:999px;background-color:var(--color-border);font-size:.8rem}.chip__remove{background:none;border:none;cursor:pointer;font-size:.9rem;line-height:1;color:var(--color-text-muted);padding:0}.subscribe-card{max-width:480px;margin:4rem auto;text-align:center;background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:2.5rem}.subscribe-card p{color:var(--color-text-muted);margin-bottom:1.5rem}.placeholder-panel{background-color:var(--color-surface);border:1px dashed var(--color-border);border-radius:var(--radius);padding:4rem 1rem;text-align:center;color:var(--color-text-muted)}.filter-bar{display:flex;align-items:flex-end;gap:1rem;margin-bottom:1.5rem}.filter-bar .form-field{margin-bottom:0}.filter-bar .btn{height:2.6rem}.analytics-error{color:var(--color-danger);margin-bottom:1rem}.analytics-message{color:var(--color-text-muted);font-size:.875rem;margin:0}section+section{margin-top:2rem}.table-scroll{overflow-x:auto;background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius)}.analytics-table{width:100%;border-collapse:collapse;font-size:.875rem;white-space:nowrap}.analytics-table th,.analytics-table td{padding:.6rem 1rem;border-bottom:1px solid var(--color-border);text-align:right}.analytics-table thead th{background-color:var(--color-bg);color:var(--color-text-muted);font-weight:600}.analytics-table tbody th{text-align:left;font-weight:600;background-color:var(--color-bg);color:var(--color-text)}.analytics-table tbody tr:last-child th,.analytics-table tbody tr:last-child td{border-bottom:none}.analytics-total-col{font-weight:700;background-color:var(--color-bg)}