:root{--primary-color:#e53935;--primary-hover:#c62828;--secondary-color:#ff9800;--bg-color:#f8fafc;--text-dark:#1e293b;--text-light:#64748b;--white:#fff;--glass-bg:#ffffffd9;--glass-border:#fff6;--shadow-sm:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;--shadow-lg:0 10px 15px -3px #0000001a,0 4px 6px -2px #0000000d;--transition:all .3s ease}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-dark);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}.container{max-width:1200px;margin:0 auto;padding:0 20px}.navbar{background:var(--glass-bg);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--glass-border);z-index:100;padding:15px 0;position:sticky;top:0}.nav-content{justify-content:space-between;align-items:center;display:flex}.logo{color:var(--primary-color);letter-spacing:-.5px;font-size:24px;font-weight:800}.logo span{color:var(--secondary-color)}.nav-links{align-items:center;gap:20px;font-weight:500;display:flex}.user-greeting{align-items:center;gap:15px;display:flex}.logout-btn{color:var(--text-light);cursor:pointer;background:0 0;border:none;font-size:14px;text-decoration:underline}.btn-secondary{background-color:var(--white);color:var(--text-dark);transition:var(--transition);cursor:pointer;border:1px solid #cbd5e1;border-radius:8px;padding:10px 20px;font-weight:500}.btn-secondary:hover{background-color:#f1f5f9}.btn-primary-outline{border:2px solid var(--primary-color);color:var(--primary-color);transition:var(--transition);cursor:pointer;background:0 0;border-radius:9999px;padding:8px 20px;font-weight:600}.btn-primary-outline:hover{background:var(--primary-color);color:var(--white)}.btn-primary{background:var(--primary-color);color:var(--white);cursor:pointer;transition:var(--transition);text-align:center;border:none;border-radius:9999px;padding:10px 24px;font-size:16px;font-weight:600;display:inline-block}.btn-primary:hover{background:var(--primary-hover);box-shadow:var(--shadow-sm);transform:translateY(-2px)}.btn-primary:disabled{cursor:not-allowed;box-shadow:none;background:#ccc;transform:none}.btn-secondary{background:var(--secondary-color);color:var(--white);cursor:pointer;transition:var(--transition);border:none;border-radius:9999px;padding:10px 24px;font-weight:600}.main-content{min-height:calc(100vh - 140px);padding:40px 0}.footer{text-align:center;color:var(--text-light);border-top:1px solid #e2e8f0;padding:20px;font-size:14px}.auth-container{justify-content:center;align-items:center;min-height:80vh;display:flex}.auth-card{background:var(--white);box-shadow:var(--shadow-lg);text-align:center;border-radius:20px;width:100%;max-width:400px;padding:40px}.auth-title{color:var(--primary-color);margin-bottom:8px;font-size:28px}.auth-subtitle{color:var(--text-light);margin-bottom:30px;font-size:14px}.form-group{text-align:left;margin-bottom:20px}.form-label{color:var(--text-dark);margin-bottom:8px;font-size:14px;font-weight:500;display:block}.form-input{width:100%;transition:var(--transition);border:1px solid #cbd5e1;border-radius:10px;padding:12px 16px;font-size:16px}.form-input:focus{border-color:var(--primary-color);outline:none;box-shadow:0 0 0 3px #e539351a}.w-full{width:100%}.page-header{text-align:center;margin-bottom:40px}.page-title{margin-bottom:10px;font-size:36px;font-weight:800}.page-desc{color:var(--text-light);max-width:600px;margin:0 auto;font-size:18px}.filters{flex-wrap:wrap;justify-content:center;gap:15px;margin-bottom:40px;display:flex}.filter-btn{background:var(--white);cursor:pointer;transition:var(--transition);color:var(--text-light);border:1px solid #e2e8f0;border-radius:9999px;padding:8px 20px;font-weight:500}.filter-btn:hover,.filter-btn.active{background:var(--primary-color);color:var(--white);border-color:var(--primary-color)}.conferences-grid{grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:30px;padding:0 20px;display:grid}.conference-card{background:var(--white);box-shadow:var(--shadow-sm);transition:var(--transition);border:1px solid #f1f5f9;border-radius:16px;flex-direction:column;display:flex;overflow:hidden}.conference-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-5px)}.card-img-placeholder{height:160px;color:var(--white);text-shadow:1px 1px 3px #0003;background:linear-gradient(135deg,#f8fafc 0%,#e2e8f0 100%);justify-content:center;align-items:center;font-size:24px;font-weight:800;display:flex}.health-bg{background:linear-gradient(135deg,#ff9a9e 0%,#fecfef 99% 100%)}.comm-bg{background:linear-gradient(120deg,#f6d365 0%,#fda085 100%)}.edu-bg{background:linear-gradient(120deg,#84fab0 0%,#8fd3f4 100%)}.psy-bg{background:linear-gradient(120deg,#a1c4fd 0%,#c2e9fb 100%)}.card-content{flex-direction:column;flex-grow:1;padding:24px;display:flex}.category-tag{color:var(--primary-color);text-transform:uppercase;background:#e539351a;border-radius:9999px;align-self:flex-start;margin-bottom:12px;padding:4px 12px;font-size:12px;font-weight:700;display:inline-block}.card-title{color:var(--text-dark);margin-bottom:10px;font-size:20px;font-weight:700}.card-desc{color:var(--text-light);flex-grow:1;margin-bottom:20px;font-size:14px}.card-meta{color:var(--text-dark);background:#f8fafc;border-radius:8px;justify-content:space-between;margin-bottom:20px;padding:10px;font-size:13px;font-weight:500;display:flex}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:.5s forwards fadeIn}