:root{--primary-color: #2c3e50;--accent-color: #e74c3c;--bg-color: #f4f7f6;--card-bg: #ffffff;--karuta-red: #d32f2f;--modal-bg: rgba(0, 0, 0, .7);--line-green: #06c755;--x-black: #000000;--google-blue: #4285f4;--bg-white: #ffffff;--bg-soft: #f4f7f6;--text-main: #333333}*{box-sizing:border-box}body{font-family:Helvetica Neue,Arial,Hiragino Kaku Gothic ProN,Hiragino Sans,Meiryo,sans-serif;background-color:var(--bg-color);margin:0;padding:0;color:var(--primary-color)}#app{max-width:100%}.landing{width:100%}.app-frame{padding:20px}.app-footer{margin-top:40px;padding:20px 0 10px;text-align:center;font-size:.8rem;color:#95a5a6;display:flex;gap:10px;justify-content:center;align-items:center}.footer-separator{opacity:.5}.not-found{min-height:100vh;width:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;color:#7f8c8d}.not-found h2{font-size:2rem;margin-bottom:12px;color:var(--primary-color)}.app-header{width:100%;margin:20px 0 40px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px}.logo-area h1{font-size:2.2rem;font-weight:900;margin:0;letter-spacing:-.05em}.logo-area h1 span{color:var(--accent-color);font-style:italic}.logo-area p{font-size:.47rem;color:#95a5a6;letter-spacing:.2em;margin:5px 0 0;text-transform:uppercase}.logo-link{text-decoration:none;color:inherit}.header-right{display:flex;align-items:center;gap:15px;flex:1 1 auto}.header-actions{display:flex;align-items:center;gap:12px}.header-right .group-name-wrap,.header-right .shared-id-badge{flex:1 1 0;min-width:220px}@media(min-width:1201px){.header-right .group-name-wrap{flex:4 1 0}.header-right .shared-id-badge{flex:1.5 1 0}}@media(max-width:1200px){.app-header{position:relative}.header-right{flex-direction:column;align-items:stretch;position:static;width:100%;gap:16px}.header-right .group-name-wrap,.header-right .shared-id-badge{width:100%}.header-actions{position:absolute;top:0;right:0;z-index:3}}.shared-id-badge{background:#fff;padding:10px 15px 8px;border-radius:10px;box-shadow:0 2px 8px #0000000d;border:1px solid #eee;text-align:left;min-height:72px;display:flex;flex-direction:column;justify-content:center}.shared-id-row{display:flex;align-items:center;gap:10px}.row-content{display:flex;align-items:center;gap:10px;min-height:30px;width:100%;justify-content:space-between}.group-name-wrap{background:#fff;padding:10px 15px 8px;border-radius:10px;box-shadow:0 2px 8px #0000000d;border:1px solid #eee;text-align:left;min-width:180px;min-height:72px;display:flex;flex-direction:column;justify-content:center}.shared-id-badge,.group-name-wrap{gap:2px}.group-name-input{border:none;border-bottom:1px solid #cfd8dc;padding:4px 0;width:100%;flex:1 1 auto;font-size:.85rem;outline:none;color:var(--primary-color)}.group-name-input:focus{border-bottom-color:var(--primary-color)}.group-name-text{font-size:1rem;font-weight:700;color:var(--primary-color);display:block;line-height:1.2;flex:1 1 auto}.group-name-edit{display:flex;align-items:center;gap:8px;width:100%}.group-name-save{background:var(--accent-color);color:#fff;border:none;border-radius:6px;padding:6px 14px;font-size:.75rem;font-weight:700;cursor:pointer;white-space:nowrap;min-height:28px;margin-left:auto}.group-name-save:disabled{opacity:.5;cursor:not-allowed}.id-label{display:block;font-size:.6rem;color:#95a5a6;font-weight:700;line-height:1.2;min-height:14px;margin-bottom:4px}.id-value{font-family:monospace;font-size:1rem;font-weight:700;line-height:1.2;flex:1 1 auto;white-space:nowrap}.btn-share{background:var(--accent-color);border:none;color:#fff;padding:8px 14px;border-radius:8px;font-size:.75rem;font-weight:700;cursor:pointer;transition:.2s;min-height:30px;margin-left:auto}.btn-share:disabled{opacity:.5;cursor:not-allowed}.user-profile-svg{width:42px;height:42px;border-radius:50%;background:#fff;cursor:pointer;border:2px solid #fff;box-shadow:0 2px 6px #0000001a;display:flex;justify-content:center;align-items:center;color:#bdc3c7;flex-shrink:0}.help-button{font-weight:800;font-size:1.1rem;color:var(--primary-color)}.help-content{text-align:left;color:var(--primary-color)}.help-lead{font-weight:700;margin:0 0 12px}.help-list{padding-left:18px;margin:0 0 12px;color:#54606a;font-size:.9rem}.help-heading{margin:0 0 8px;font-size:1rem;font-weight:800;color:var(--primary-color)}.help-heading:not(:first-child){margin-top:18px}.help-note{margin:0;font-size:.8rem;color:#95a5a6}.user-profile-svg.is-authenticated{color:var(--primary-color)}#karuta-container{max-width:1400px;margin:0 auto}.landing{background-color:var(--bg-white);color:var(--text-main);margin:0 auto}.hero{padding:100px 20px;background:linear-gradient(135deg,#f4f7f6,#e8edec);position:relative;overflow:hidden;text-align:center}.hero-inner{max-width:820px;margin:0 auto 36px}.hero-logo{font-size:3.5rem;font-weight:900;margin:0;letter-spacing:-.05em;color:var(--text-main)}.hero-logo span{color:var(--accent-color);font-style:italic}.hero-copy{font-size:1.2rem;color:#7f8c8d;margin:20px 0 40px;text-align:center}.cta-button{display:inline-block;background:var(--accent-color);color:#fff;padding:18px 40px;border-radius:50px;text-decoration:none;font-weight:700;font-size:1.1rem;box-shadow:0 10px 20px #e74c3c4d;transition:.3s}.cta-button:hover{transform:translateY(-3px);box-shadow:0 15px 30px #e74c3c66}.legal-page{min-height:100vh;padding:40px 20px;background:var(--bg-color);color:var(--text-main)}.legal-container{max-width:800px;margin:0 auto;background:#fff;padding:40px;border-radius:20px;box-shadow:0 4px 15px #0000000d}.legal-header{text-align:center;margin-bottom:40px}.legal-logo-mark{margin:0 auto 20px;transform:scale(.75);transform-origin:center;display:inline-block}.legal-header h1{font-size:1.5rem;margin:0;color:var(--text-main)}.legal-tabs{display:flex;gap:10px;margin-bottom:30px;border-bottom:2px solid #eee}.tab-btn{padding:10px 20px;border:none;background:none;cursor:pointer;font-weight:700;color:#95a5a6;transition:.3s;text-decoration:none}.tab-btn.active{color:var(--accent-color);border-bottom:2px solid var(--accent-color);margin-bottom:-2px}.legal-content p,.legal-content li{font-size:.95rem;color:#555}.legal-content ul{padding-left:20px}.legal-link{margin-top:10px}.legal-link a{color:var(--accent-color);font-weight:700;text-decoration:none}.legal-link a:hover{text-decoration:underline}.legal-doc-title{font-size:1.2rem;margin-top:0}.legal-section-title{font-size:1.2rem;border-left:4px solid var(--accent-color);padding-left:10px;margin-top:30px}.legal-back{display:block;text-align:center;margin-top:40px;color:var(--primary-color);text-decoration:none;font-size:.9rem;font-weight:700;background:none;border:none;width:100%;cursor:pointer}@media(max-width:600px){.legal-container{padding:30px 24px}.legal-tabs{flex-direction:column;align-items:flex-start}}.section{padding:100px 20px;max-width:1100px;margin:0 auto}.section-title{text-align:center;margin-bottom:60px}.section-title h2{font-size:2.2rem;font-weight:800;position:relative;display:inline-block}.section-title h2:after{content:"";position:absolute;bottom:-10px;left:50%;transform:translate(-50%);width:50px;height:4px;background:var(--accent-color)}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:40px}.feature-card{background:var(--bg-soft);padding:40px;border-radius:20px;text-align:center;transition:.3s}.feature-card:hover{background:#fff;box-shadow:0 20px 40px #0000000d}.feature-icon{font-size:3rem;margin-bottom:20px;display:block}.feature-card h3{font-size:1.4rem;margin-bottom:15px}.section-cta{text-align:center;border-top:1px solid #eee;padding:120px 20px}.section-cta h2{font-size:2.2rem;font-weight:800;margin:0 0 15px;letter-spacing:-.02em}.cta-button.cta-secondary{background:var(--primary-color);box-shadow:none}.cta-hero{display:flex;flex-direction:column;align-items:center}.cta-badge-wrap{margin-bottom:50px;position:relative;display:inline-block}.cta-badge-glow{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:150px;height:150px;background:radial-gradient(circle,rgba(231,76,60,.1) 0%,transparent 70%);z-index:1}.cta-badge-card{position:relative;z-index:2;width:100px;height:120px;background:#fff;border:2px dashed #dcd9d0;border-radius:10px;margin:0 auto;display:flex;flex-direction:column;align-items:center;justify-content:center;transform:rotate(-5deg);animation:float 3s ease-in-out infinite}.cta-badge-index{width:32px;height:32px;background-color:var(--karuta-red);color:#fff;border-radius:50%;display:flex;justify-content:center;align-items:center;font-weight:900;font-size:1rem;border:2px solid white;margin-bottom:10px}.cta-badge-logo{transform:scale(.6);border-style:dashed;opacity:.5}.cta-button.cta-button-large{padding:22px 60px;font-size:1.3rem}@keyframes float{0%{transform:translateY(0) rotate(-5deg)}50%{transform:translateY(-15px) rotate(-2deg)}to{transform:translateY(0) rotate(-5deg)}}.section-compare{padding-top:50px}.section-compare-title{font-size:1.8rem;font-weight:800}.compare-grid{gap:30px}.compare-card{background:#fff;border-radius:20px;padding:30px}.compare-legacy{border:1.5px solid #eee}.compare-legacy h4{color:#95a5a6;margin-top:0}.compare-legacy ul{list-style:none;padding:0;font-size:.95rem;color:#7f8c8d}.compare-legacy li{margin-bottom:12px}.compare-goroku{border:2px solid var(--accent-color);position:relative;box-shadow:0 10px 30px #e74c3c1a}.compare-goroku h4{color:var(--accent-color);margin-top:0}.compare-goroku ul{list-style:none;padding:0;font-size:.95rem;font-weight:500}.compare-goroku li{margin-bottom:12px}.compare-badge{position:absolute;top:-15px;left:20px;background:var(--accent-color);color:#fff;padding:4px 15px;border-radius:20px;font-size:.8rem;font-weight:700}.compare-footnote{text-align:center;margin-top:40px;font-weight:700;color:var(--primary-color)}.landing-footer{background:var(--primary-color);color:#fff;padding:60px 20px;text-align:center}.footer-logo{font-size:1.5rem;font-weight:900;margin-bottom:20px}.footer-logo span{color:var(--accent-color);font-style:italic}.footer-links{display:flex;justify-content:center;gap:16px;margin:8px 0 16px;font-size:.85rem}.footer-links a{color:#cfd8dc;text-decoration:none}.footer-links a:hover{color:#fff}.footer-social{display:flex;justify-content:center;margin-bottom:16px}.footer-x-link{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;color:#cfd8dc}.footer-x-link:hover{color:#fff}.footer-x-icon{width:20px;height:20px;fill:currentColor}@media(max-width:768px){.hero h1{font-size:2.5rem}.section{padding:60px 20px}.hero-share{position:static;margin-top:16px}}.share-id-hint{font-size:.8rem;color:#95a5a6}.card-grid{display:grid;gap:20px;margin-bottom:25px}@media(min-width:1200px){.card-grid{grid-template-columns:repeat(5,1fr)}}@media(min-width:768px)and (max-width:1199px){.card-grid{grid-template-columns:repeat(3,1fr)}.grid-spacer{display:none}}@media(max-width:767px){.card-grid{grid-template-columns:repeat(2,1fr)}.grid-spacer{display:none}}.grid-spacer{aspect-ratio:5 / 5.8}.karuta-card{background:var(--card-bg);border-radius:8px;overflow:hidden;box-shadow:0 4px 12px #00000014;transition:.2s;position:relative;cursor:pointer;border:1px solid #e0e0e0;aspect-ratio:5 / 5.8;display:flex;flex-direction:column}@media(max-width:767px){.karuta-card.has-content{aspect-ratio:auto}}.karuta-card:hover{transform:translateY(-5px);box-shadow:0 12px 20px #0000001f}.karuta-index{position:absolute;top:10px;left:10px;width:32px;height:32px;background-color:var(--karuta-red);color:#fff;border-radius:50%;display:flex;justify-content:center;align-items:center;font-weight:900;font-size:1rem;border:2px solid white;z-index:10}.image-container{width:100%;aspect-ratio:16 / 9;background-color:#f0eee9;background-image:radial-gradient(#dcd9d0 1.2px,transparent 1.2px);background-size:15px 15px;position:relative;display:flex;justify-content:center;align-items:center;overflow:hidden;border-bottom:1px solid #f0f0f0;flex-shrink:0}.karuta-card.unregistered .image-container{flex:1;border-bottom:none}.placeholder-logo{display:flex;flex-direction:column;align-items:center;justify-content:center;color:#e74c3c33;border:2.5px solid rgba(231,76,60,.2);width:55px;height:65px;border-radius:4px;pointer-events:none;line-height:1.1}.placeholder-logo .p-top{font-size:.5rem;font-weight:900;letter-spacing:.05em;margin-bottom:1px}.placeholder-logo .p-main{font-family:serif;font-size:1.8rem;font-weight:700;margin:0}.card-image{width:100%;height:100%;object-fit:cover;position:absolute;top:0;left:0;z-index:2}.card-content{padding:12px;flex:1;display:flex;flex-direction:column;gap:8px;min-height:0}.quote-text{font-weight:700;font-size:.85rem;line-height:1.4;color:#333;margin:0;display:-webkit-box;line-clamp:3;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;flex:0 0 auto;min-height:3.6em}.card-meta{display:flex;justify-content:space-between;align-items:center;font-size:.7rem;border-top:1px solid #f0f0f0;padding-top:8px;margin-top:auto;flex:0 0 auto}.vote-count{color:var(--accent-color);font-weight:700}.vote-count.mini{font-size:.75rem}.youtube-link{color:#bdc3c7;display:inline-flex;align-items:center;line-height:1}.youtube-link.mini{font-size:.7rem;cursor:pointer}.youtube-link.is-active{color:var(--accent-color);text-decoration:none}.youtube-link.is-disabled{color:#bdc3c7;cursor:not-allowed}.yt-icon{display:inline-flex;width:16px;height:16px;margin-right:6px;line-height:0}.yt-icon svg{width:100%;height:100%;fill:currentColor}.view-candidates-btn{background:#f8f9fa;color:#95a5a6;text-align:center;padding:6px 0;border-radius:4px;font-size:.65rem;margin-top:4px;font-weight:700;border:1px solid #eee;cursor:pointer;flex:0 0 auto}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:var(--modal-bg);display:flex;justify-content:center;align-items:center;z-index:1000;opacity:0;visibility:hidden;transition:.3s}.modal-overlay.active{opacity:1;visibility:visible}.modal-content{background:#fff;padding:30px;border-radius:15px;width:90%;max-width:550px;position:relative;max-height:85vh;overflow-y:auto}.modal-content.modal-center{text-align:center}.modal-close-btn{position:absolute;top:15px;right:15px;background:none;border:none;font-size:1.8rem;cursor:pointer;color:#ccc}.form-group{margin-bottom:15px}.form-group label{display:block;font-size:.8rem;font-weight:700;margin-bottom:5px}.form-group textarea,.form-group input[type=text]{width:100%;padding:12px;border:1px solid #ddd;border-radius:8px}.img-preview{width:100%;aspect-ratio:16 / 9;object-fit:cover;border-radius:8px;margin-top:10px;border:1px solid #eee}.modal-actions{display:flex;gap:12px;margin-top:12px}.modal-actions .btn-primary,.modal-actions .btn-secondary{width:100%}.btn-primary{width:100%;background:var(--accent-color);color:#fff;border:none;padding:14px;border-radius:8px;font-weight:700;cursor:pointer}.btn-secondary{background:#f7f8fa;color:var(--primary-color);border:1px solid #e1e6ea;padding:14px;border-radius:8px;font-weight:700;cursor:pointer}.btn-danger{background:#fbeaea;color:#c0392b;border-color:#f3b7b0}.candidate-item{display:flex;gap:12px;padding:15px 0;border-bottom:1px solid #eee;align-items:center}.candidate-body{flex:1}.candidate-title{font-weight:700;font-size:.85rem}.candidate-actions{display:flex;align-items:center;gap:10px;margin-top:8px}.btn-vote-mini{background:var(--accent-color);color:#fff;border:none;padding:4px 10px;border-radius:4px;font-size:.7rem;font-weight:700;cursor:pointer}.btn-delete-mini{background:#f1f2f6;color:#a4b0be;border:none;width:28px;height:28px;border-radius:50%;cursor:pointer;display:flex;justify-content:center;align-items:center;font-size:1rem}.login-options{display:flex;flex-direction:column;align-items:center;margin-top:20px;gap:12px}.login-note{margin:8px 0 0;font-size:.85rem;color:#95a5a6}.demo-note{text-align:center;font-size:.75rem}.login-required{display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center}.login-divider{margin:18px 0 10px;font-size:.8rem;color:#95a5a6}.login-form{width:100%;max-width:320px;margin:0 auto;display:flex;flex-direction:column;gap:12px;align-items:stretch}.login-label{font-size:.75rem;color:#95a5a6;text-align:left;align-self:flex-start;display:block;width:100%}.login-input{width:100%;border:none;border-bottom:1px solid #cfd8dc;padding:8px 4px;font-size:.9rem;outline:none}.login-input:focus{border-bottom-color:var(--primary-color)}.login-submit{margin-top:8px;background:var(--accent-color);color:#fff;border:none;border-radius:6px;padding:10px 16px;font-weight:700;cursor:pointer;box-shadow:0 6px 12px #e74c3c40}.login-actions{display:flex;flex-direction:column;gap:10px;margin-top:16px}.login-submit.secondary{background:#eceff1;color:#455a64;box-shadow:none}.account-actions{display:flex;flex-direction:column;gap:8px;align-items:center}.account-email{font-size:.85rem;color:#95a5a6;margin:0}.account-tabs{display:flex;gap:8px;justify-content:center;margin:12px 0 18px;flex-wrap:wrap}.account-tab{border:1px solid #e6eaed;background:#fff;color:#7f8c8d;padding:8px 14px;border-radius:999px;font-size:.85rem;font-weight:600;cursor:pointer}.account-tab.active{border-color:var(--accent-color);color:var(--accent-color);background:#e74c3c14}.account-links{display:inline-flex;align-items:center;gap:8px;font-size:.85rem}.link-button{background:none;border:none;color:#1a73e8;cursor:pointer;padding:0}.link-button:disabled{color:#c0c8cc;cursor:not-allowed}.link-separator{color:#c0c8cc}.login-submit:disabled{opacity:.6;cursor:not-allowed}.login-error{margin:4px 0 0;font-size:.75rem;color:#e74c3c}.account-group{margin-top:18px;padding:16px;border-radius:14px;background:#f8f9fb;border:1px solid #eef1f4;text-align:center}.account-group-title{font-size:.9rem;font-weight:700;color:var(--primary-color);margin:0 0 8px}.account-group-note{margin:6px 0 0;font-size:.8rem;color:#7f8c8d}.account-group-actions{display:flex;flex-direction:column;gap:10px}.account-group-links{display:flex;flex-direction:column;gap:6px}.account-group-link{color:var(--accent-color);font-weight:700;text-decoration:none}.account-group-link:hover{text-decoration:underline}.account-group-button{padding:12px 16px;border-radius:10px;border:none;background:var(--accent-color);color:#fff;font-weight:700;cursor:pointer}.account-group-button:disabled{opacity:.5;cursor:not-allowed}.account-group+.login-form{margin-top:24px}.password-field{position:relative;display:flex;align-items:center}.password-field .login-input{padding-right:32px}.password-toggle{position:absolute;right:0;top:50%;transform:translateY(-50%);background:none;border:none;padding:4px;cursor:pointer;color:#95a5a6}.password-toggle svg{width:18px;height:18px;stroke:currentColor;fill:none}.login-footer{margin-top:18px;font-size:.8rem;color:#7f8c8d}.login-footer.links{display:flex;justify-content:center;gap:12px;margin-top:10px}.login-footer.links a{color:#7f8c8d;text-decoration:none}.login-footer a{color:#1a73e8;text-decoration:none;margin-left:4px}.login-btn{display:block;width:100%;max-width:320px;padding:14px;border-radius:10px;border:none;color:#fff;font-weight:700;cursor:pointer;text-align:center;text-decoration:none}.login-btn.x-login{background:var(--x-black)}.login-btn.google-login{background:var(--google-blue)}.share-row{display:flex;gap:10px}.share-row input{flex:1;padding:10px;border-radius:8px;border:1px solid #ddd}.share-row button{padding:10px;background:var(--primary-color);color:#fff;border:none;border-radius:8px;cursor:pointer}.share-x-button{margin-top:24px;width:100%;padding:12px;border-radius:10px;background:#000;color:#fff;font-weight:700;text-align:center;text-decoration:none;display:inline-block}