@layer base,components,pages; @layer base{:root{--primary-color:#f5a623;--primary-hover:#e6951a;--primary-text:#a86000;--primary-focus-color:#a86000;--text-dark:#333333;--text-gray:#666666;--text-light:#666666 /* M-A1: 5.74:1 (was #767676 4.54:1) */;--bg-white:#ffffff;--bg-light:#fafafa;--bg-cream:#fff3cc;--notification-unread-hover-bg:#ffeaa7;--border-color:#e0e0e0;--border-dark:#333333;--font-family:'Noto Sans JP',sans-serif;--max-width:800px;--header-height:60px;--z-header:100;--z-modal-bg:1000;--z-modal:1001;--z-confirm-bg:1100;--z-confirm:1101;--z-toast:9999;--z-top:10000;--error-color:#c53030;--error-bg:#fff5f5;--error-border:#e74c3c;--danger-text:#c62828;--success-text:#2e7d32;--disabled-color:#cccccc;--text-muted:#6b6b6b;--color-black:#000000;--rank-1-bg-start:#fffbeb;--rank-2-bg-start:#f8f8f8;--rank-3-bg-start:#fdf5eb;--gradient-accent-end:#fff9e6;--like-liked-bg:#fff0f0;--like-border:#ff6b6b;--line-green:#00c300;--gold-color:#ffd700;--gold-dark:#ffb800;--gold-text:#5d4e00;--danger-color:#e53e3e;--danger-hover:#c53030;--shadow-primary:rgba(245, 166, 35, 0.3);--primary-focus:rgba(168, 96, 0, 0.15);--primary-focus-strong:rgba(168, 96, 0, 0.25);--primary-focus-xl:rgba(168, 96, 0, 0.35);--shadow-golden:rgba(255, 179, 0, 0.3);--shadow-danger:rgba(229, 62, 62, 0.3);--tx-pending-bg:#fff3e0;--tx-pending-color:#bf4400;--tx-negotiating-bg:#e8f5e9;--tx-negotiating-color:#2e7d32;--tx-approved-bg:#e3f2fd;--tx-approved-color:#1565c0;--tx-rejected-bg:#fce4ec;--tx-rejected-color:#c62828;--tx-payment-bg:#fff8e1;--tx-payment-color:#c66900;--tx-payment-confirmed-bg:#e3f2fd;--tx-payment-confirmed-color:#0d47a1;--tx-delivered-bg:#fff3e0;--tx-delivered-color:#bf4400;--tx-completed-bg:#e8f5e9;--tx-completed-color:#1b5e20;--tx-cancelled-bg:#f5f5f5;--tx-disputed-bg:#fff3e0;--tx-disputed-color:#bf4400;--tx-refunded-bg:#fce4ec;--tx-refunded-color:#b71c1c;--tx-reviewed-bg:#ede7f6;--tx-reviewed-color:#4527a0;--negotiation-bg:#f1f8e9;--negotiation-border:#aed581;--visited-link-color:#6b4c8a;--unread-badge-bg:#c53030;--unread-badge-color:#fff;--form-error-color:#e53935;--form-success-color:#43a047;--form-disabled-bg:#f5f5f5;--warning-border:#ffcccc;--warning-important-bg:#fffbeb;--warning-important-border:#fde68a;--notice-border:#f59e0b;--notice-strong:#d97706;--check-color:#10b981;--status-reviewing-bg:#fff3cd;--status-reviewing-color:#856404;--status-published-bg:#d4edda;--status-published-color:#155724;--status-adopted-bg:#cce5ff;--status-adopted-color:#004085;--status-decided-border:#28a745;--rank-gold:#ffd700;--rank-silver:#c0c0c0;--rank-bronze:#cd7f32;--radius-xs:2px;--radius-sm:4px;--radius-md:6px;--radius-base:8px;--radius-lg:12px;--radius-xl:16px;--radius-2xl:20px;--border-radius-pill:30px;--valid-border:#c5e1c5;--scrollbar-hover:#aaaaaa;--idea-textarea-bg:#fffbf0;--thanks-card-bg:#fff8e6;--thanks-hover-bg:#fff3cc;--balance-color:#1b5e20;--like-benefit-bg-start:#fffbeb;--like-benefit-bg-end:#fff9e0;--like-benefit-border:#ffd54f;--level-none-bg:#e0e0e0;--level-none-color:#757575;--level-bronze-start:#cd7f32;--level-bronze-end:#b87333;--level-silver-start:#c0c0c0;--level-silver-end:#a8a8a8;--warning-light-border:#fed7d7;--print-border:#cccccc;--chat-meta-mine:rgba(255, 255, 255, 0.85);--cream-text:#8a5000;--strength-weak:#d32f2f;--strength-fair:#f57c00;--strength-good:#fbc02d;--strength-strong:#388e3c;--toast-bg:rgba(30, 30, 30, 0.92);--toast-color:#ffffff;--footer-bg-dark:#111118;--input-bg:#ffffff;--overlay-bg:rgba(0, 0, 0, 0.6);--spinner-border:rgba(51, 51, 51, 0.3);--card-bg:#ffffff;--premium-cream:#fff8e8;--premium-cream-end:#fff3d6;--banner-bg:#333333;--banner-text:#ffffff;--banner-text-secondary:#e0e0e0;--banner-link:#ffbb3d;--banner-primary-bg:#f5a623;--banner-primary-text:#1a1a1a;--banner-focus-outline:#ffffff;--banner-accept-bg:#a86000;--banner-accept-text:#ffffff;--shadow-sm:0 4px 12px rgba(0, 0, 0, 0.06);--shadow-md:0 4px 16px rgba(0, 0, 0, 0.06);--shadow-lg:0 8px 24px rgba(0, 0, 0, 0.08);--shadow-xl:0 8px 32px rgba(0, 0, 0, 0.12);--shadow-2xl:0 20px 60px rgba(0, 0, 0, 0.4)}*{margin:0;padding:0;box-sizing:border-box}[role=button],[role=tab],a,button,input[type=button],input[type=submit]{-webkit-tap-highlight-color:rgba(245,166,35,0.15)}fieldset{border:none;padding:0;margin:0;min-width:0}legend{padding:0;font-size:inherit;font-weight:inherit}.hidden{display:none}html{scroll-behavior:smooth;-webkit-overflow-scrolling:touch}body{font-family:var(--font-family);font-size:1rem;line-height:1.8;color:var(--text-dark);background-color:var(--bg-white);overflow-x:clip;-webkit-tap-highlight-color:transparent}[role=button],a,button,input[type=button],input[type=reset],input[type=submit],label,summary{touch-action:manipulation}.idea-content img,.idea-detail img,.pinch-zoom,.premium-attachment-image{touch-action:pinch-zoom}body.scroll-locked{overflow:hidden;padding-inline-end:var(--scrollbar-width,0px)}body.scroll-locked .header{padding-inline-end:var(--scrollbar-width,0px)}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.4}a{color:inherit;text-decoration:none;transition:opacity .2s ease,text-decoration .2s ease}a:hover{opacity:.7}.content a:not([class]):visited,dd a:not([class]):visited,li a:not([class]):visited,p a:not([class]):visited{color:var(--visited-link-color)}.content a:not([class]),dd a:not([class]),li a:not([class]),p a:not([class]){color:var(--primary-text);text-decoration:underline;text-underline-offset:2px}.content a:not([class]):hover,dd a:not([class]):hover,li a:not([class]):hover,p a:not([class]):hover{text-decoration-thickness:2px;opacity:1;color:var(--primary-hover)}.container{max-width:var(--max-width);margin:0 auto;padding-inline-start:max(20px,env(safe-area-inset-left,0px));padding-inline-end:max(20px,env(safe-area-inset-right,0px))}form{padding-bottom:env(safe-area-inset-bottom,0)}body{padding-bottom:env(safe-area-inset-bottom,0)}img,picture,svg,video{max-width:100%;height:auto}iframe{max-width:100%}}.header{position:fixed;top:0;left:0;right:0;height:var(--header-height);padding-block-start:env(safe-area-inset-top,0px);padding-inline-start:env(safe-area-inset-left,0px);padding-inline-end:env(safe-area-inset-right,0px);box-sizing:content-box;background-color:var(--bg-white);border-bottom:1px solid var(--border-color);z-index:var(--z-header)}.header-content{display:flex;justify-content:space-between;align-items:center;height:100%}.header-logo{font-size:1.25rem;font-weight:700;color:var(--text-dark)}.logo-accent{color:var(--primary-text)}.header-link{font-size:.75rem;color:var(--text-gray);padding:8px 16px;border:1px solid var(--border-color);border-radius:var(--radius-sm);transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease,opacity .2s ease}.header-link:hover{background-color:var(--bg-light);opacity:1}.header-nav{display:flex;align-items:center;gap:32px}.header-nav-link{font-size:.8125rem;color:var(--text-dark);transition:color .2s ease}.header-nav-link:hover{color:var(--primary-text);opacity:1}.hamburger-menu{position:relative;display:flex;align-items:center;gap:12px}.header-theme-btn{background:0 0;border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;padding:4px 8px;font-size:1rem;line-height:1;transition:border-color .2s,background-color .2s;color:var(--text-dark)}.header-theme-btn:hover{border-color:var(--primary-color);background-color:var(--bg-cream)}.header-theme-icon{display:none}.hamburger-btn{display:flex;flex-direction:column;justify-content:space-between;width:24px;height:18px;padding:13px 10px;box-sizing:content-box;background:0 0;border:none;cursor:pointer;z-index:var(--z-modal)}.hamburger-btn span{display:block;width:100%;height:2px;background-color:var(--text-dark);border-radius:1px;transition:background-color .3s ease,color .3s ease,border-color .3s ease,box-shadow .3s ease,transform .3s ease,opacity .3s ease}.hamburger-btn.active span:first-child{transform:translateY(8px) rotate(45deg)}.hamburger-btn.active span:nth-child(2){opacity:0}.hamburger-btn.active span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}.hamburger-dropdown{display:none;position:absolute;top:calc(100% + 12px);right:0;min-width:220px;background-color:var(--bg-white);border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);z-index:var(--z-modal-bg);opacity:0;transform:translateY(-10px);transition:opacity .2s ease,transform .2s ease}.hamburger-dropdown.active{display:block;opacity:1;transform:translateY(0)}.hamburger-dropdown-content{padding:12px 0;max-height:calc(100vh - 120px);overflow-y:auto}.hamburger-dropdown-item{display:block;padding:12px 20px;font-size:.875rem;color:var(--text-dark);text-decoration:none;transition:background-color .2s ease}.hamburger-dropdown-item:hover{background-color:var(--bg-light);opacity:1}.hamburger-dropdown-item:active{background-color:var(--border-color)}.hamburger-dropdown-item.nav-current{color:var(--primary-text);font-weight:600;background-color:var(--bg-light);pointer-events:none}.hamburger-dropdown-item.nav-current::after{content:' ✓';font-size:.75em;opacity:.7}.hamburger-dropdown-item--highlight{color:var(--primary-text);font-weight:500}.menu-unread-badge{display:inline-block;background-color:var(--unread-badge-bg);color:var(--unread-badge-color);font-size:.7rem;font-weight:700;line-height:1;padding:2px 6px;border-radius:var(--radius-base);margin-inline-start:6px;vertical-align:middle}.hamburger-dropdown-divider{height:1px;background-color:var(--border-color);margin:8px 0}@media (min-width:769px){.header-nav>.header-link,.header-nav>.header-nav-link{display:inline-block}}.header-nav-link--active{color:var(--primary-text);font-weight:500;position:relative}.header-nav-link--active::after{content:'';position:absolute;bottom:-4px;left:0;right:0;height:2px;background-color:var(--primary-color);border-radius:1px}.header-mypage-link{min-height:44px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-dark);font-size:.8125rem;font-weight:500;transition:border-color .2s,background-color .2s,color .2s}.header-mypage-link:hover{border-color:var(--primary-color);background-color:var(--bg-cream);color:var(--primary-text);opacity:1}.notification-bell{position:relative;display:flex;align-items:center}.notification-bell-btn{background:0 0;border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;min-width:44px;min-height:44px;padding:4px 10px;font-size:1rem;line-height:1;position:relative;display:inline-flex;align-items:center;justify-content:center;transition:border-color .2s,background-color .2s;color:var(--text-dark)}.notification-bell-btn:hover{border-color:var(--primary-color);background-color:var(--bg-cream)}.notification-badge{position:absolute;top:-6px;right:-6px;background-color:var(--error-color);color:var(--bg-white);font-size:.625rem;font-weight:700;min-width:16px;height:16px;line-height:16px;text-align:center;border-radius:8px;padding:0 4px;pointer-events:none}.notification-dropdown{position:absolute;top:calc(100% + 8px);right:0;width:320px;max-height:400px;background-color:var(--bg-white);border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);z-index:var(--z-modal-bg);overflow:hidden}.notification-header{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid var(--border-color)}.notification-title{font-size:.875rem;font-weight:700;margin:0;color:var(--text-dark)}.notification-mark-all{background:0 0;border:none;color:var(--primary-text);font-size:.75rem;cursor:pointer;padding:4px 8px;min-height:44px;min-width:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);transition:background-color .2s}.notification-mark-all:hover{background-color:var(--bg-light)}.notification-list{max-height:320px;overflow-y:auto}.notification-item{display:flex;gap:10px;padding:10px 16px;cursor:pointer;transition:background-color .2s;border-bottom:1px solid var(--border-color)}.notification-item:last-child{border-bottom:none}.notification-item:hover{background-color:var(--bg-light)}.notification-item.unread{background-color:var(--bg-cream)}.notification-item.unread:hover{background-color:var(--notification-unread-hover-bg)}.notification-item-icon{flex-shrink:0;font-size:1.25rem;line-height:1.4}.notification-item-content{flex:1;min-width:0}.notification-item-message{font-size:.8125rem;color:var(--text-dark);margin:0;line-height:1.4;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.notification-item-time{font-size:.6875rem;color:var(--text-light);margin-top:2px;display:block}.notification-filter-tabs{display:flex;gap:0;border-bottom:1px solid var(--border-color);padding:0 12px}.notification-filter-tab{background:0 0;border:none;border-bottom:2px solid transparent;padding:6px 8px;font-size:.75rem;cursor:pointer;color:var(--text-light);transition:color .2s,border-color .2s;flex:1;text-align:center}.notification-filter-tab:hover{color:var(--text-dark)}.notification-filter-tab.active{color:var(--primary-text);border-bottom-color:var(--primary-color);font-weight:600}.notification-empty{padding:24px 16px;text-align:center;color:var(--text-light);font-size:.8125rem}@media (max-width:480px){.notification-dropdown{width:280px;right:-40px}}.header-lang-wrapper{display:none}.header-lang-select{font-size:.8rem;min-height:44px;padding:8px 10px;border:1px solid var(--border-color);border-radius:6px;background:var(--bg-white);color:var(--text-dark);cursor:pointer;max-width:120px}.header-lang-select:hover{border-color:var(--primary-color)}.header-lang-select:focus{outline:2px solid var(--primary-color);outline-offset:1px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media (max-width:480px){.header-lang-select{font-size:.75rem;max-width:90px;padding:8px 8px}}.hero{padding-top:calc(var(--header-height) + 60px);padding-bottom:80px;text-align:center;background-color:var(--bg-white)}.hero-logo{font-size:4rem;margin-bottom:24px}.hero-title{font-size:3rem;font-weight:700;margin-bottom:36px;line-height:1.6}.hero-description{font-size:1.375rem;color:var(--text-dark);margin-bottom:24px;line-height:1.8;font-weight:500}.hero-sub-description{font-size:.875rem;color:var(--text-gray);line-height:2;max-width:560px;margin:0 auto;text-align:left;background-color:var(--bg-light);padding:20px 24px;border-radius:var(--radius-lg);border-left:4px solid var(--primary-color)}.hero-buttons-wrapper{margin-top:48px}.hero-buttons{display:flex;flex-direction:row;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap}.hero-guideline-link{margin-top:20px;font-size:.8125rem;color:var(--text-gray)}.hero-guideline-link a{color:var(--primary-text);text-decoration:underline}.hero-guideline-link a:hover{opacity:.7}.how-it-works{padding:60px 0;background-color:var(--bg-light);text-align:center}.steps-wrapper{max-width:600px;margin:0 auto;list-style:none;padding-left:0}.step{background-color:var(--bg-white);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:24px 28px;margin-bottom:0;text-align:left;position:relative;transition:background-color .3s ease,color .3s ease,border-color .3s ease,box-shadow .3s ease,transform .3s ease,opacity .3s ease}.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.step-number{display:inline-block;font-size:.75rem;font-weight:700;color:var(--cream-text);background-color:var(--bg-cream);padding:4px 12px;border-radius:var(--radius-2xl);margin-bottom:12px}.step-title{font-size:1rem;font-weight:700;margin-bottom:10px;color:var(--text-dark)}.step-description{font-size:.8125rem;color:var(--text-gray);line-height:1.8}.step-arrow{font-size:1.25rem;color:var(--primary-text);margin:16px 0;text-align:center}.marketplace-intro{padding:80px 0 60px;text-align:center}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:32px}.feature-card{background-color:var(--bg-white);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:28px 24px;text-align:left;transition:background-color .3s ease,color .3s ease,border-color .3s ease,box-shadow .3s ease,transform .3s ease,opacity .3s ease}.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.about{padding:60px 0;background-color:var(--bg-white)}.section-title{font-size:1.125rem;font-weight:700;text-align:center;margin-bottom:30px}.section-subtitle{font-size:.875rem;color:var(--text-gray);text-align:center;margin-top:-16px;margin-bottom:16px}.about-description{font-size:.875rem;color:var(--text-gray);line-height:2;text-align:center;max-width:600px;margin-inline:auto;margin-bottom:16px}.about-link{text-align:center;margin-top:24px}.about-link a{font-size:.875rem;color:var(--primary-text);font-weight:500;transition:opacity .2s ease}.about-link a:hover{opacity:.7}.genres{padding:60px 0;background-color:var(--bg-cream)}.genre-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-bottom:20px}.genre-card{background-color:var(--bg-white);border:1px solid var(--border-color);border-radius:var(--radius-base);padding:20px;transition:background-color .3s ease,color .3s ease,border-color .3s ease,box-shadow .3s ease,transform .3s ease,opacity .3s ease}.genre-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.genre-title{font-size:.875rem;font-weight:700;margin-bottom:10px;padding-bottom:10px;border-bottom:2px solid var(--primary-color)}.genre-description{font-size:.75rem;color:var(--text-gray);line-height:1.7}.genre-group-title{font-size:.8125rem;font-weight:600;color:var(--cream-text);margin-bottom:12px;margin-top:24px;padding-inline-start:4px;letter-spacing:.05em}.genre-group-title:first-of-type{margin-top:0}.cta-buttons{display:flex;flex-direction:row;align-items:center;justify-content:center;gap:16px;margin-top:40px;padding-top:20px;flex-wrap:wrap}.back-to-top-section{text-align:center;padding:40px 0}.back-to-top-section .btn-outline{min-width:auto;padding:12px 24px}.footer{padding:60px 0 calc(40px + env(safe-area-inset-bottom,0px));padding-inline-start:env(safe-area-inset-left,0px);padding-inline-end:env(safe-area-inset-right,0px);background-color:var(--bg-cream);text-align:center;border-top:1px solid var(--border-color)}.footer-logo{font-family:var(--font-family);font-size:2.25rem;font-weight:700;line-height:1.2;color:var(--text-dark);margin-bottom:16px}.footer-tagline{font-size:.875rem;color:var(--text-gray);margin-bottom:30px}.footer-nav{display:flex;flex-direction:row;flex-wrap:wrap;justify-content:center;align-items:center;gap:24px;margin-bottom:30px}.footer-nav a{font-size:.8125rem;color:var(--text-dark);transition:color .2s ease}.footer-nav a:hover{color:var(--primary-text);opacity:1}.footer-bottom{font-size:.75rem;color:var(--text-gray)}.copyright{margin-bottom:4px}.credit{font-size:.75rem}.btn{display:inline-block;padding:14px 32px;font-size:.875rem;font-weight:500;text-align:center;border-radius:var(--border-radius-pill);cursor:pointer;transition:background-color .3s ease,color .3s ease,border-color .3s ease,box-shadow .3s ease,transform .3s ease,opacity .3s ease;border:none;font-family:var(--font-family)}.btn-primary{background-color:var(--primary-color);color:var(--text-dark);min-width:min(280px,100%);font-weight:600}.btn-primary:hover{background-color:var(--primary-hover);opacity:1;transform:translateY(-2px);box-shadow:0 4px 12px var(--shadow-primary)}[data-theme=dark] .btn-primary:hover{color:var(--btn-primary-hover-text,#1a1a1a)}.btn-primary:active{transform:translateY(0);box-shadow:none}.btn-outline{background-color:var(--bg-white);color:var(--text-dark);border:1px solid var(--border-color);min-width:min(280px,100%)}.btn-outline:hover{background-color:var(--bg-light);opacity:1}.btn-outline:active{background-color:var(--border-color)}.btn-outline-dark{background-color:var(--bg-white);color:var(--primary-text);border:2px solid var(--primary-color);min-width:min(280px,100%)}.btn-outline-dark:hover{background-color:var(--bg-cream);opacity:1}.modal{display:none;position:fixed;top:0;left:0;right:0;bottom:0;z-index:var(--z-modal-bg);align-items:center;justify-content:center}.modal.active{display:flex}.modal-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background-color:var(--overlay-bg)}.modal-content{position:relative;background-color:var(--bg-white);padding:40px;padding-bottom:calc(40px + env(safe-area-inset-bottom,0px));border-radius:var(--radius-lg);max-width:500px;width:90%;max-height:min(90vh,calc(100dvh - env(safe-area-inset-bottom,0px) - env(safe-area-inset-top,0px) - 20px));overflow-y:auto;z-index:var(--z-modal);animation:modalSlideIn .3s ease;will-change:transform,opacity}@keyframes modalSlideIn{from{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.modal-close{position:absolute;top:max(8px,env(safe-area-inset-top));right:max(8px,env(safe-area-inset-right));font-size:1.75rem;background:0 0;border:none;cursor:pointer;color:var(--text-light);transition:color .2s ease;line-height:1;min-width:44px;min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:8px;border-radius:var(--radius-sm,4px)}.modal-close:hover{color:var(--text-dark)}.modal-title{font-size:1.125rem;font-weight:700;text-align:center;margin-bottom:30px}.like-button{display:flex;flex-direction:column;align-items:center;gap:4px;padding:12px 16px;min-height:44px;min-width:44px;background:var(--bg-light);border:1px solid var(--border-color);border-radius:var(--radius-lg);cursor:pointer;transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease,opacity .2s ease}.like-button:hover:not(.disabled){transform:scale(1.05);border-color:var(--like-border)}.like-button.liked{background:var(--like-liked-bg);border-color:var(--like-border)}.like-button.disabled{opacity:.6;cursor:not-allowed}.like-button.disabled:hover{transform:none;border-color:var(--border-color)}.like-button .like-icon{font-size:1.5rem}.like-button .like-count{font-size:.875rem;font-weight:600;color:var(--text-dark)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.form-group{margin-bottom:24px}.form-group label{display:block;font-size:.8125rem;font-weight:500;margin-bottom:8px}.required{color:var(--error-border)}.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 16px;font-size:1rem;font-family:var(--font-family);border:1px solid var(--border-color);border-radius:var(--radius-md);transition:border-color .2s ease,box-shadow .2s ease}.form-group input:focus:not(:focus-visible),.form-group textarea:focus:not(:focus-visible){outline:0;border-color:var(--primary-color);box-shadow:0 0 0 3px var(--primary-focus)}.form-group input:focus-visible,.form-group textarea:focus-visible{outline:2px solid var(--primary-text);outline-offset:2px}.form-group textarea{resize:vertical;min-height:150px}.checkbox-group{margin-top:20px}.checkbox-label{display:flex;align-items:flex-start;gap:12px;cursor:pointer;font-size:.8125rem;line-height:1.5;min-height:44px;padding:4px 0}.checkbox-label input[type=checkbox]{width:20px;height:20px;min-width:20px;margin-top:2px;cursor:pointer;accent-color:var(--primary-color)}.checkbox-text{flex:1}.checkbox-text a{color:var(--primary-text);text-decoration:underline}.checkbox-text a:hover{opacity:.7}.form-note{font-size:.75rem;color:var(--text-light);text-align:center;margin-bottom:24px}.btn-submit{width:100%;padding:16px;font-size:.9375rem;font-weight:500;background-color:var(--primary-color);color:var(--text-dark);border:none;border-radius:var(--border-radius-pill);cursor:pointer;transition:background-color .3s ease,color .3s ease,border-color .3s ease,box-shadow .3s ease,transform .3s ease,opacity .3s ease}.btn-submit:hover{background-color:var(--primary-hover);transform:translateY(-2px);box-shadow:0 4px 12px var(--shadow-primary)}.detail-close,.modal-close{min-width:44px;min-height:44px;display:flex;align-items:center;justify-content:center}.detail-overlay,.modal-overlay{cursor:pointer}.detail-modal{position:fixed;top:0;left:0;right:0;bottom:0;z-index:var(--z-modal-bg);display:flex;justify-content:center;align-items:center}.detail-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:var(--overlay-bg)}.detail-content{position:relative;background:var(--bg-white);border-radius:var(--radius-xl);padding:32px;max-width:600px;width:90%;max-height:90vh;overflow-y:auto;z-index:var(--z-modal)}@media (orientation:landscape) and (max-height:500px){.detail-content{max-height:85vh;padding:20px}}.detail-close{position:absolute;top:16px;right:16px;background:0 0;border:none;font-size:1.75rem;cursor:pointer;color:var(--text-gray);transition:color .2s}.detail-close:hover{color:var(--text-dark)}.detail-title{font-size:1.25rem;font-weight:700;margin-bottom:12px;padding-inline-end:40px}.detail-category{display:inline-block;font-size:.75rem;color:var(--primary-text);background:var(--bg-cream);padding:6px 14px;border-radius:var(--radius-xl);margin-bottom:16px}.detail-description{font-size:.9375rem;color:var(--text-dark);line-height:1.8;margin-bottom:24px}.detail-meta{display:flex;gap:20px;margin-bottom:20px;font-size:.8125rem;color:var(--text-light)}.detail-actions{display:flex;justify-content:center}.detail-view-full{display:block;width:100%;text-align:center;margin-top:16px;padding:12px 20px;font-size:.875rem}.detail-login-note{text-align:center;font-size:.8125rem;color:var(--text-light)}.detail-login-note a{color:var(--primary-text);text-decoration:underline}.detail-modal.hidden,.register-modal.hidden{display:none}.register-modal{position:fixed;top:0;left:0;right:0;bottom:0;z-index:var(--z-modal-bg);display:flex;justify-content:center;align-items:center}.register-content{position:relative;background:var(--bg-white);border-radius:var(--radius-xl);padding:32px;max-width:500px;width:90%;max-height:90vh;overflow-y:auto;z-index:var(--z-modal)}.register-header{text-align:center;margin-bottom:16px}.register-icon{font-size:3rem;display:block;margin-bottom:12px}.register-title{font-size:1.25rem;font-weight:700}.register-modal-desc{text-align:center;margin-bottom:20px}.register-modal-actions{display:flex;flex-direction:column;gap:12px;align-items:center}.register-modal-btn{width:100%;max-width:280px;text-align:center}@keyframes btnSpinner{to{transform:rotate(360deg)}}.btn-submitting,button.btn-submitting{position:relative;cursor:not-allowed;opacity:.85}.btn-submitting::before{content:'';display:inline-block;width:14px;height:14px;border:2px solid var(--spinner-border);border-top-color:var(--text-dark);border-radius:50%;animation:spin .7s linear infinite;margin-inline-end:8px;vertical-align:middle}.form-error-msg{display:none;color:var(--error-color);background:var(--error-bg);border:1px solid var(--error-border);border-radius:var(--radius-base);padding:12px 16px;margin:12px 0;font-size:.875rem;line-height:1.5;text-align:left}.form-error-msg.visible{display:flex;align-items:flex-start;gap:8px}.form-error-msg::before{content:'⚠️';flex-shrink:0;font-size:1rem}.field-error.field-error{border-color:var(--error-border)}.field-error-msg{color:var(--error-color);font-size:.8rem;margin-top:4px;line-height:1.4}.char-counter{text-align:right;font-size:.8rem;color:var(--text-light);margin-top:4px}.char-counter.near-limit{color:var(--error-color,#d32f2f);font-weight:500}.offline-banner{display:none;position:fixed;top:var(--header-height);left:0;right:0;background:var(--strength-weak);color:var(--toast-color);text-align:center;padding:8px 16px;font-size:.85rem;z-index:calc(var(--z-header) - 1);transition:transform .3s ease}.offline-banner.visible{display:block}.password-strength{margin-top:6px}.password-strength-bar{height:4px;background:var(--border-color);border-radius:var(--radius-xs);overflow:hidden}.password-strength-fill{height:100%;width:0;border-radius:var(--radius-xs);transition:width .3s ease,background-color .3s ease}.password-strength-fill.strength-weak{width:25%;background-color:var(--strength-weak)}.password-strength-fill.strength-fair{width:50%;background-color:var(--strength-fair)}.password-strength-fill.strength-good{width:75%;background-color:var(--strength-good)}.password-strength-fill.strength-strong{width:100%;background-color:var(--strength-strong)}.password-strength-label{font-size:.75rem;margin-top:2px;color:var(--text-light)}.toast-notification{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(80px);background:var(--toast-bg);color:var(--toast-color);padding:12px 24px;border-radius:var(--radius-base);z-index:var(--z-toast);font-size:.9rem;pointer-events:none;transition:transform .3s ease,opacity .3s ease;opacity:0;white-space:normal;max-width:90vw;overflow-wrap:break-word}.toast-notification.show{transform:translateX(-50%) translateY(0);opacity:1}.toast-notification.toast-no-animation{transition:none}.toast-retry{display:flex;align-items:center;gap:12px;padding:12px 16px;pointer-events:auto;flex-wrap:wrap}.toast-retry__message{flex:1 1 auto;min-width:200px}.toast-retry__actions{display:inline-flex;gap:8px;flex-shrink:0}.toast-retry__btn{background:0 0;color:inherit;border:1px solid currentColor;padding:6px 12px;border-radius:var(--radius-base);cursor:pointer;font-size:.85rem;font-family:inherit;line-height:1.2;pointer-events:auto}.toast-retry__btn:disabled{opacity:.6;cursor:not-allowed}.toast-retry__btn:hover:not(:disabled){background:rgba(255,255,255,.12)}.toast-retry__btn:focus-visible{outline:2px solid currentColor;outline-offset:2px}.toast-retry__btn--primary{background:var(--primary-color);border-color:var(--primary-color);color:#fff;font-weight:600}.toast-retry__btn--primary:hover:not(:disabled){filter:brightness(1.05)}input:invalid:not(:placeholder-shown):not(:focus),textarea:invalid:not(:placeholder-shown):not(:focus){border-color:var(--error-border)}input:valid:not(:placeholder-shown):not([type=checkbox]):not([type=hidden]),textarea:valid:not(:placeholder-shown){border-color:var(--valid-border)}.reactions-bar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:16px 0}.reaction-btn{display:inline-flex;align-items:center;gap:4px;padding:6px 12px;background:var(--bg-light);border:1px solid var(--border-color);border-radius:var(--border-radius-pill);cursor:pointer;font-size:.875rem;color:var(--text-dark);transition:background-color .15s ease,border-color .15s ease,transform .1s ease;line-height:1}.reaction-btn:hover{background:var(--bg-cream);border-color:var(--primary-color)}.reaction-btn:active{transform:scale(.96)}.reaction-btn--active{background:var(--primary-focus);border-color:var(--primary-color);color:var(--primary-text);font-weight:600}.reaction-btn:disabled{opacity:.6;cursor:not-allowed}.reaction-emoji{font-size:1.1rem}.reaction-count{font-variant-numeric:tabular-nums;min-width:1ch;text-align:right}.ideasun-dynamic-banner{position:fixed;background:var(--banner-bg);color:var(--banner-text);padding:12px 16px;border-radius:8px;display:flex;align-items:center;gap:12px;font-size:.875rem;box-shadow:0 4px 16px rgba(0,0,0,.3)}.ideasun-dynamic-banner__primary-btn{background:var(--banner-primary-bg);color:var(--banner-primary-text);border:none;padding:6px 12px;border-radius:4px;cursor:pointer;font-weight:600;white-space:nowrap}.ideasun-dynamic-banner__secondary-btn{background:0 0;color:var(--banner-text-secondary);border:1px solid var(--banner-text-secondary);padding:6px 12px;border-radius:4px;cursor:pointer}.ideasun-dynamic-banner__link{color:var(--banner-link);text-decoration:underline}.ideasun-dynamic-banner a:focus-visible,.ideasun-dynamic-banner button:focus-visible{outline-color:var(--banner-focus-outline)}.pwa-install-banner{bottom:calc(16px + env(safe-area-inset-bottom,0px));left:16px;right:16px;max-width:480px;margin:0 auto;justify-content:space-between;z-index:calc(var(--z-toast) - 2)}.pwa-install-banner__actions{display:flex;gap:8px}.cookie-consent-banner__actions{display:flex;gap:8px}.sw-update-banner{bottom:calc(16px + env(safe-area-inset-bottom,0px));left:50%;transform:translateX(-50%);padding:12px 20px;z-index:calc(var(--z-toast) - 1);max-width:calc(100vw - 32px)}.sw-update-banner__dismiss{background:0 0;border:none;color:var(--banner-text-secondary);cursor:pointer;font-size:1rem;padding:0 4px}.tx-poll-banner{bottom:calc(16px + env(safe-area-inset-bottom,0px));left:50%;transform:translateX(-50%);padding:12px 20px;z-index:calc(var(--z-toast) - 1);max-width:calc(100vw - 32px);display:flex;align-items:center;gap:12px}.tx-poll-banner[data-kind=reconnecting]{opacity:.95}.tx-poll-banner[data-kind=fatal]{border-color:var(--err-color,#c0392b)}.cookie-consent-banner{bottom:0;left:0;right:0;padding:16px 16px calc(16px + env(safe-area-inset-bottom,0px));z-index:calc(var(--z-toast) - 3);flex-wrap:wrap;justify-content:center;border-radius:0;box-shadow:0 -2px 8px rgba(0,0,0,.3)}.cookie-consent-banner__msg{max-width:600px}.cookie-consent-banner__accept{background:var(--banner-accept-bg);color:var(--banner-accept-text);border:none;padding:8px 16px;border-radius:4px;cursor:pointer;font-weight:700}.cookie-consent-banner__reject{background:0 0;color:var(--banner-text);border:1px solid var(--banner-text);padding:8px 16px;border-radius:4px;cursor:pointer}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:clamp(2rem,6vw,4rem) 1rem;gap:.75rem;color:var(--text-light,#767676)}.empty-state__icon{font-size:clamp(2.5rem, 6vw, 3.5rem);line-height:1;opacity:.85}.empty-state__title{margin:0;font-size:clamp(1rem, 2.4vw, 1.125rem);font-weight:600;color:var(--text-color,#333)}.empty-state__description{margin:0;font-size:.9375rem;max-width:32ch;line-height:1.6}.empty-state__cta{margin-top:.5rem}.tip-card{background-color:var(--bg-white);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:24px}.tip-card-title{font-size:.875rem;font-weight:700;margin:0 0 16px}.tip-description{font-size:.8125rem;color:var(--text-light);margin-bottom:16px;line-height:1.6}.tip-amounts{display:flex;gap:8px;margin-bottom:12px}.tip-amount-btn{flex:1;padding:8px 4px;border:2px solid var(--border-color);border-radius:var(--radius-base);background:var(--bg-white);font-size:.875rem;font-weight:600;cursor:pointer;transition:background-color .2s,color .2s,border-color .2s,box-shadow .2s,transform .2s,opacity .2s;color:var(--text-dark)}.tip-amount-btn:hover{border-color:var(--primary-color);background:var(--primary-focus)}.tip-amount-btn.selected{border-color:var(--primary-color);background:var(--primary-focus-strong);color:var(--primary-text)}.tip-custom{display:flex;gap:8px}.tip-custom-input{flex:1;padding:8px 12px;border:1px solid var(--border-color);border-radius:var(--radius-base);font-size:1rem;background:var(--bg-white);color:var(--text-dark)}.tip-custom-input:focus:not(:focus-visible){outline:0;border-color:var(--primary-color);box-shadow:0 0 0 3px var(--primary-focus)}.tip-custom-input:focus-visible{outline:2px solid var(--primary-text);outline-offset:2px;box-shadow:none}.tip-send-btn{white-space:nowrap;padding:8px 16px;font-size:.875rem}.detail-tip-container:not(:empty){margin-top:16px}@media (max-width:768px){.tip-amounts{flex-wrap:wrap}.tip-custom{flex-direction:column}}.idea-card,.mypage-card{transition:border-color .2s ease,box-shadow .2s ease}.idea-card:hover{border-color:var(--primary-color);box-shadow:0 4px 16px var(--primary-focus)}.marketplace-loading,.purchase-loading,.ranking-loading{text-align:center;padding:60px 20px}.loading-spinner{width:40px;height:40px;border:3px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 16px}@keyframes spin{to{transform:rotate(360deg)}}.ranking-list{list-style:none;padding-inline-start:0;margin:0}.ranking-item.rank-1{border-left:4px solid var(--rank-gold)}.ranking-item.rank-2{border-left:4px solid var(--rank-silver)}.ranking-item.rank-3{border-left:4px solid var(--rank-bronze)}@keyframes skeletonPulse{0%{opacity:.6}50%{opacity:1}100%{opacity:.6}}.skeleton-line{background-color:var(--border-color,#e0e0e0);border-radius:var(--radius-sm);animation:skeletonPulse 1.5s ease-in-out infinite}@media (prefers-reduced-motion:reduce){.skeleton-line{animation:none;opacity:.8}}.skeleton-title{width:60%;height:1.1rem;margin-bottom:.5rem}.skeleton-meta{width:40%;height:.875rem}.skeleton-badge{width:60px;height:1.5rem;border-radius:var(--radius-lg)}.skeleton-item{pointer-events:none}.js-state-center{text-align:center;padding:2rem;color:var(--text-light)}.js-state-center-lg{text-align:center;padding:3rem;color:var(--text-light)}.js-state-error{text-align:center;padding:2rem;color:var(--error-color)}.js-mt-sm{margin-top:1rem}.cursor-pointer{cursor:pointer}.text-meta{color:var(--text-light);font-size:.8125rem}.no-ideas{text-align:center;padding:3rem}.no-ideas__title{font-size:1.25rem;color:var(--text-dark);margin-bottom:1.5rem}.no-ideas__body{font-size:1rem;color:var(--text-gray);margin-bottom:1rem}.escrow-notice{padding:12px 16px;border-radius:var(--radius-base);font-size:.8125rem;margin-bottom:10px;width:100%}.escrow-notice--success{background:var(--tx-negotiating-bg)}.escrow-notice--warning{background:var(--tx-pending-bg)}.btn-danger-outline{color:var(--error-color);border-color:var(--error-color)}.admin-auth-overlay{position:fixed;inset:0;background:rgba(0,0,0,.85);display:flex;align-items:center;justify-content:center;z-index:var(--z-top)}.admin-auth-box{background:var(--bg-white);border-radius:var(--radius-lg);padding:2.5rem 2rem;width:100%;max-width:380px;box-shadow:var(--shadow-2xl)}.admin-auth-title{font-size:1.5rem;font-weight:700;margin-bottom:.5rem;color:var(--text-dark)}.admin-auth-title__accent{color:var(--primary-text)}.admin-auth-subtitle{color:var(--text-light);margin-bottom:1.5rem;font-size:.9rem}.admin-auth-field{margin-bottom:1rem}.admin-auth-input{width:100%;padding:.75rem 1rem;border:1.5px solid var(--border-color);border-radius:var(--radius-base);font-size:1rem;transition:border-color .2s;box-sizing:border-box}.admin-auth-input:focus:not(:focus-visible){outline:0;border-color:var(--primary-color)}.admin-auth-error{color:var(--error-color);font-size:1rem;margin-bottom:.75rem;display:none}.admin-auth-btn{width:100%;padding:.75rem;background:var(--primary-color);color:var(--text-dark);border:none;border-radius:var(--radius-base);font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s}.admin-auth-btn:hover{background:var(--primary-hover)}.admin-auth-btn:focus-visible{outline:2px solid var(--text-dark);outline-offset:2px}.sales-chart{display:flex;align-items:flex-end;gap:8px;height:180px}.sales-chart__bar-wrap{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px}.sales-chart__amount{font-size:.7rem;color:var(--text-light)}.sales-chart__bar{width:100%;background:var(--primary-color);border-radius:var(--radius-sm) var(--radius-sm) 0 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