:root{--primary-red: #c91f00;--primary-red-dark: #C30000;--background-light: #fefefe;--background-gray: #efefef;--background-darker: #ededed;--text-dark: #666666;--text-light: #737373;--border-light: #dedede;--border-gray: #ccc;--white: #ffffff;--gradient-background: linear-gradient(to bottom, var(--background-light), var(--background-gray));--gradient-bar: linear-gradient(to bottom, #fdfdfd, #e6e6e6)}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--gradient-background);color:var(--text-dark);line-height:1.5}.app-container{min-height:100vh;display:flex;flex-direction:column}.app-header{background:var(--gradient-bar);border-bottom:1px solid var(--border-light);padding:16px 24px;display:flex;justify-content:space-between;align-items:center;box-shadow:0 1px 3px #0000001a}.app-header h1{margin:0;color:var(--primary-red);font-size:1.5em;font-weight:700}.app-header a{text-decoration:none;color:inherit}.app-header a:hover{color:var(--primary-red)}.app-nav{display:flex;align-items:center;gap:16px}.app-nav a{color:var(--text-dark);text-decoration:none;font-weight:500;padding:8px 12px;border-radius:4px;transition:background-color .2s}.app-nav a:hover{background-color:#c91f001a;color:var(--primary-red)}.app-main{flex:1;padding:24px}.app-footer{background:#000;color:#fff;padding:24px;border-top:1px solid #333;margin-top:auto}.footer-content{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}.footer-content p{margin:0;color:#ccc}.footer-nav{display:flex;gap:24px}.footer-nav a{color:#fff;text-decoration:none;transition:color .2s}.footer-nav a:hover{color:var(--primary-red)}.btn{background:var(--primary-red);color:#fff;border:none;padding:12px 24px;border-radius:6px;font-weight:700;cursor:pointer;transition:background-color .2s;text-decoration:none;display:inline-block;text-align:center}.btn:hover{background:var(--primary-red-dark);color:#fff}.btn-secondary{background:var(--background-darker);color:var(--text-dark);border:1px solid var(--border-gray)}.btn-secondary:hover{background:var(--border-light)}.form-group{margin-bottom:16px}.form-group label{display:block;margin-bottom:4px;font-weight:700;color:var(--text-dark)}.form-group input,.form-group textarea,.form-group select{width:100%;padding:12px;border:1px solid var(--border-light);border-radius:4px;font-size:16px;background:#fff;box-sizing:border-box}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--primary-red);box-shadow:0 0 0 2px #c91f001a}.card{background:#fff;border:1px solid var(--border-light);border-radius:8px;padding:24px;margin-bottom:16px;box-shadow:0 1px 3px #0000001a}.alert{padding:12px 16px;border-radius:4px;margin-bottom:16px}.alert-success{background:#d4edda;color:#155724;border:1px solid #c3e6cb}.alert-error{background:#f8d7da;color:#721c24;border:1px solid #f5c6cb}.exchange-list{list-style:none;padding:0}.exchange-item{background:#fff;border:1px solid var(--border-light);border-radius:8px;padding:16px;margin-bottom:12px;box-shadow:0 1px 3px #0000001a;transition:box-shadow .2s,border-color .2s}.exchange-item a{color:var(--primary-red);text-decoration:none;font-weight:700;display:block}.exchange-item a:hover{text-decoration:none}.logo{max-width:200px;height:auto}.beta-marker{background:var(--primary-red);color:#fff;padding:2px 8px;border-radius:12px;font-size:.7em;font-weight:700;margin-left:8px}.home-list{list-style:none;padding:0;margin:1rem 0}.home-list li{border-bottom:1px solid var(--border-light);position:relative;padding:.5rem 0 .5rem 1.5rem}.home-list li:before{content:"✓";position:absolute;left:0;color:var(--primary-red);font-weight:700}.home-list li.last{border-bottom:none}.intro{font-size:1.1em;line-height:1.6;margin:1.5rem 0;color:var(--text-dark)}.tag{font-size:.9em;color:var(--text-light);margin:.5rem 0;font-weight:400}.exchange-section{margin-bottom:2rem}.exchange-section h3{background:var(--background-darker);padding:.75rem 1rem;margin:0 0 1rem;border-radius:4px;display:flex;justify-content:space-between;align-items:center}.count{background:var(--primary-red);color:#fff;padding:.25rem .5rem;border-radius:12px;font-size:.8em;font-weight:700}.exchange-item{background:#fff;border:1px solid var(--border-light);border-radius:8px;margin-bottom:1rem;overflow:hidden;box-shadow:0 1px 3px #0000001a;transition:box-shadow .2s,border-color .2s}.exchange-item:hover{box-shadow:0 2px 8px #0000001a;border-color:var(--primary-red)}.exchange-item a{display:flex;padding:1rem;text-decoration:none;color:inherit}.exchange-image{width:80px;height:80px;margin-right:1rem;flex-shrink:0}.exchange-image img{width:100%;height:100%;object-fit:cover;border-radius:4px;border:1px solid var(--border-light)}.exchange-details{flex:1}.exchange-details h4{margin:0 0 .5rem;color:var(--primary-red);font-size:1.1em}.exchange-details p{margin:.25rem 0;font-size:.9em;color:var(--text-dark)}.exchange-members{margin-top:.5rem;display:flex;flex-wrap:wrap;gap:.25rem}.member-box{background:var(--background-darker);padding:.25rem .5rem;border-radius:12px;font-size:.8em;color:var(--text-dark)}.no-results{text-align:center;padding:2rem;color:var(--text-light)}.no-results p{margin-bottom:1rem}.see-all{text-align:center;padding:1rem;background:var(--background-darker)}.see-all a{color:var(--primary-red);text-decoration:none;font-weight:700}.invite-list li{padding:.75rem 0;border-bottom:1px solid var(--border-light)}.invite-list a{color:var(--primary-red);text-decoration:none;font-weight:700}.footnote{font-size:.8em;color:var(--text-light);font-weight:400}.dashboard-page{max-width:1200px;margin:0 auto}.dashboard-header h2{margin:0 0 24px;color:var(--text-dark);font-size:1.8em}.dashboard-content{display:grid;grid-template-columns:1fr 300px;gap:24px}.dashboard-main,.dashboard-sidebar{min-width:0}.dashboard-section{margin-bottom:32px}.section-header{display:flex;justify-content:space-between;align-items:center;background:var(--background-darker);padding:12px 16px;border-radius:4px;margin-bottom:16px}.section-header h3,.section-header h4{margin:0;color:var(--text-dark);font-size:1.2em}.count-badge{background:var(--primary-red);color:#fff;padding:4px 12px;border-radius:12px;font-size:.9em;font-weight:700}.exchange-list{display:flex;flex-direction:column;gap:12px}.exchange-card{background:#fff;border:1px solid var(--border-light);border-radius:8px;padding:16px;display:flex;gap:16px;text-decoration:none;color:inherit;transition:box-shadow .2s,border-color .2s}.exchange-card:hover{box-shadow:0 2px 8px #0000001a;border-color:var(--primary-red)}.exchange-card-wrapper{display:flex;align-items:stretch;background:#fff;border:1px solid var(--border-light);border-radius:8px;margin-bottom:12px;box-shadow:0 1px 3px #0000001a;transition:box-shadow .2s,border-color .2s}.exchange-card-wrapper:hover{box-shadow:0 2px 8px #0000001a;border-color:var(--primary-red)}.exchange-card-image{flex-shrink:0;width:80px;height:80px}.exchange-card-image img{width:100%;height:100%;object-fit:cover;border-radius:4px;border:1px solid var(--border-light)}.exchange-card-content{flex:1;min-width:0}.exchange-card-content h3{margin:0 0 8px;color:var(--primary-red);font-size:1.1em}.exchange-card-details p{margin:4px 0;font-size:.9em;color:var(--text-dark)}.exchange-card-members{margin-top:8px}.member-count{font-size:.85em;color:var(--text-light)}.text-muted{color:var(--text-light);font-size:.9em}.empty-state{background:#fff;border:1px solid var(--border-light);border-radius:8px;padding:32px 24px;text-align:center}.empty-state p{color:var(--text-dark);margin:8px 0;line-height:1.6}.empty-state .btn{margin-top:16px}.section-footer{margin-top:12px;text-align:center}.view-all-link{color:var(--primary-red);text-decoration:none;font-weight:600;font-size:.95em}.view-all-link:hover{text-decoration:underline}.sidebar-section{background:#fff;border:1px solid var(--border-light);border-radius:8px;padding:16px;margin-bottom:16px}.sidebar-section .section-header{background:transparent;padding:0 0 12px;border-bottom:1px solid var(--border-light);margin-bottom:12px}.sidebar-section .section-header h4{font-size:1em}.invite-list{list-style:none;padding:0;margin:0}.invite-list li{padding:12px 0;border-bottom:1px solid var(--border-light)}.invite-list li:last-child{border-bottom:none}.invite-list a{color:var(--primary-red);text-decoration:none;display:block}.invite-list a:hover{text-decoration:underline}.invite-list strong{display:block;margin-bottom:4px}.btn-block{width:100%;display:block}.btn-primary{background:var(--primary-red);color:#fff}.btn-primary:hover{background:var(--primary-red-dark)}.link-list{list-style:none;padding:0;margin:0}.link-list li{padding:8px 0}.link-list a{color:var(--text-dark);text-decoration:none;font-size:.9em}.link-list a:hover{color:var(--primary-red)}.error-message{background:#fff;border:1px solid #f5c6cb;border-radius:8px;padding:24px;text-align:center}.error-message p{color:#721c24;margin-bottom:16px}.error-message button{background:var(--primary-red);color:#fff;border:none;padding:10px 20px;border-radius:4px;cursor:pointer;font-weight:700}.error-message button:hover{background:var(--primary-red-dark)}@media (max-width: 768px){.app-header{flex-direction:column;gap:16px;text-align:center}.app-nav{flex-wrap:wrap;justify-content:center}.app-main{padding:16px}.homepage-layout,.exchange-item a{flex-direction:column}.exchange-image{width:100%;height:120px;margin-right:0;margin-bottom:1rem}.dashboard-content{grid-template-columns:1fr}.exchange-card{flex-direction:column}.exchange-card-image{width:100%;height:120px}}.past-exchanges-page{max-width:1200px;margin:0 auto}.page-header{display:flex;align-items:center;gap:12px;margin-bottom:24px}.page-header h2{margin:0;color:var(--text-dark);font-size:1.8em}.page-content{display:grid;grid-template-columns:1fr 300px;gap:24px}.content-main,.content-sidebar{min-width:0}.comments-page,.report-page{max-width:700px;margin:0 auto}.page-container{background:#fff;border:1px solid var(--border-light);border-radius:8px;padding:32px;box-shadow:0 1px 3px #0000001a}.page-container h2{margin:0 0 16px;color:var(--text-dark);font-size:1.8em}.page-intro{color:var(--text-dark);line-height:1.6;margin-bottom:24px}.feedback-form{margin-top:24px}.form-actions{display:flex;gap:12px;margin-top:16px}.form-actions .btn{padding:12px 32px}.tour-page{max-width:800px;margin:0 auto}.tour-container{background:#fff;border:1px solid var(--border-light);border-radius:8px;padding:32px;box-shadow:0 1px 3px #0000001a}.tour-header{text-align:center;margin-bottom:32px;padding-bottom:24px;border-bottom:2px solid var(--border-light)}.tour-header h1{margin:0;display:flex;align-items:center;justify-content:center;gap:12px}.site-title{color:var(--primary-red);font-size:2em;font-weight:700}.tour-content h2{text-align:center;color:var(--text-dark);font-size:1.5em;margin:0 0 32px;line-height:1.4}.tour-section{margin-bottom:32px;padding-bottom:32px;border-bottom:1px solid var(--border-light)}.tour-section:last-of-type{border-bottom:none}.tour-section h3{color:var(--primary-red);font-size:1.2em;margin:0 0 12px;line-height:1.4}.tour-section p{color:var(--text-dark);line-height:1.6;margin:0}.tour-cta{text-align:center;margin:24px 0}.tour-footer{text-align:center;margin-top:48px;padding-top:32px;border-top:2px solid var(--border-light)}.btn-large{padding:16px 48px;font-size:1.1em}.tour-skip{margin-top:16px}.tour-skip a{color:var(--text-light);text-decoration:none;font-size:.9em}.tour-skip a:hover{color:var(--primary-red);text-decoration:underline}@media (max-width: 768px){.page-content{grid-template-columns:1fr}.page-container,.tour-container{padding:24px 16px}.tour-header h1{flex-direction:column;gap:8px}.site-title{font-size:1.5em}.form-actions{flex-direction:column}.form-actions .btn{width:100%}.btn-large{width:100%;padding:14px 24px;font-size:1em}}