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#e5e7eb;margin-top:1.5rem}.meta-item{display:flex;flex-direction:column;gap:.25rem}.meta-label{font-size:.875rem;color:#6b7280}.meta-value{font-size:1.25rem;font-weight:600;color:#1f2937}.material-detail-footer{padding:1rem 1.5rem;border-top:1px solid #e5e7eb;display:flex;justify-content:flex-end}.close-modal-button{padding:.5rem 1.5rem;background:#4a90e2;color:#fff;border:none;border-radius:4px;font-size:1rem;cursor:pointer;font-weight:500}.close-modal-button:hover{background:#357abd}@media(max-width:768px){.material-detail-modal{max-width:95%;margin:1rem}.material-detail-header{padding:1rem}.material-detail-header h2{font-size:1.25rem}.material-detail-content{padding:1rem}.material-detail-section{margin-bottom:1rem}.material-detail-meta{flex-direction:column;gap:1rem}.material-detail-footer{padding:.75rem 1rem}.close-modal-button{width:100%;padding:.65rem}}@media(max-width:480px){.material-detail-modal{max-width:98%;margin:.5rem}.material-detail-header h2{font-size:1.1rem}}.karma-alert{position:fixed;top:100px;right:20px;background:#36f;color:#fff;padding:1rem 1.5rem;border-radius:8px;box-shadow:0 4px 12px #00000026;z-index:2000;animation:slideIn .3s ease-out,fadeOut .3s ease-out 2.7s;min-width:250px}.karma-alert-content{display:flex;align-items:center;gap:1rem}.karma-alert-icon{font-size:2rem;animation:pulse 1s ease-in-out infinite}.karma-alert-text{flex:1}.karma-alert-title{font-weight:600;font-size:1.1rem;margin-bottom:.25rem}.karma-alert-level{font-size:.9rem;opacity:.9}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}@keyframes fadeOut{0%{opacity:1}to{opacity:0}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.landing-container{display:flex;justify-content:space-between;align-items:center;height:100vh;width:100%;overflow:hidden;font-family:Inter,sans-serif}.landing-container{background:linear-gradient(277deg,#136ac7,#45be9f);background-size:400% 400%;-webkit-animation:bg 5s ease infinite;-moz-animation:bg 5s ease infinite;-o-animation:bg 5s ease infinite;animation:bg 5s ease infinite}@-webkit-keyframes bg{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}@-moz-keyframes bg{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}@-o-keyframes bg{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}@keyframes bg{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}.landing-left{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;padding-left:8vw;color:#fff;z-index:2}.landing-left h1{font-size:3.5rem;font-weight:700;margin-bottom:15px;background:#fff;color:#fff;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.landing-left p{font-size:1.25rem;max-width:500px;line-height:1.6;color:#fff;margin-bottom:30px}.signup-button{padding:14px 36px;font-size:1.2rem;font-weight:600;background:#36f;border:none;border-radius:50px;color:#fff;cursor:pointer;box-shadow:0 8px 20px #3250ff4d;transition:all .3s ease}.signup-button:hover{transform:translateY(-3px);box-shadow:0 12px 24px #3250ff66}.landing-right{flex:1;height:100%;background:url(https://images.unsplash.com/photo-1522204507491-51b8b22f66d1?auto=format&fit=crop&w=1200&q=80) center/cover no-repeat;filter:brightness(.9);clip-path:polygon(15% 0%,100% 0,100% 100%,0 100%)}@media(max-width:900px){.landing-container{flex-direction:column}.landing-right{display:none}.landing-left{align-items:center;text-align:center;padding-left:0}.landing-left h1{font-size:2.5rem}}/*!* Simplified Design System - Only essential variables *!*//*!* Base styles *!*//*!* Typography *!*/