@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";:root{--primary-color:#0ea5e9;--primary-hover:#0284c7;--bg-color:#f8fafc;--surface-color:#fff;--text-main:#0f172a;--text-muted:#64748b;--border-color:#e2e8f0;--shadow-sm:0 1px 2px 0 #0000000d;--shadow:0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-main);-webkit-font-smoothing:antialiased;font-family:Inter,sans-serif;line-height:1.5}a{color:var(--primary-color);text-decoration:none}button{cursor:pointer;font-family:inherit}.btn-primary{background-color:var(--primary-color);color:#fff;box-shadow:var(--shadow-sm);border:none;border-radius:.5rem;justify-content:center;align-items:center;gap:.5rem;padding:.875rem 1.5rem;font-size:1rem;font-weight:600;transition:all .2s;display:inline-flex}.btn-primary:hover{background-color:var(--primary-hover);box-shadow:var(--shadow);transform:translateY(-1px)}.btn-primary:active{transform:translateY(0)}.btn-primary:disabled{opacity:.7;cursor:not-allowed;transform:none}input{border:1px solid var(--border-color);width:100%;color:var(--text-main);background-color:#fff;border-radius:.5rem;padding:.75rem 1rem;font-family:inherit;font-size:1rem;transition:all .2s}input:focus{border-color:var(--primary-color);outline:none;box-shadow:0 0 0 3px #0ea5e926}label{color:var(--text-main);margin-bottom:.5rem;font-weight:500;display:block}.form-group{margin-bottom:1.5rem}.container{max-width:1200px;margin:0 auto;padding:2rem}.card{background:var(--surface-color);box-shadow:var(--shadow-lg);border:1px solid var(--border-color);border-radius:1rem;padding:2rem}.text-center{text-align:center}.mt-4{margin-top:1rem}.mb-4{margin-bottom:1rem}.mb-6{margin-bottom:1.5rem}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:.4s ease-out forwards fadeIn}.admin-layout{background-color:var(--bg-color);min-height:100vh;display:flex}.sidebar{background-color:var(--surface-color);border-right:1px solid var(--border-color);flex-direction:column;width:260px;display:flex}.sidebar-header{border-bottom:1px solid var(--border-color);align-items:center;gap:.75rem;padding:1.5rem;display:flex}.sidebar-nav{flex-direction:column;gap:.5rem;padding:1.5rem 1rem;display:flex}.nav-link{color:var(--text-muted);border-radius:.5rem;align-items:center;gap:.75rem;padding:.75rem 1rem;font-weight:500;transition:all .2s;display:flex}.nav-link:hover{color:var(--text-main);background-color:#f1f5f9}.nav-link.active{color:var(--primary-color);background-color:#e0f2fe}.admin-content{flex:1;padding:2.5rem;overflow-y:auto}.admin-table{border-collapse:collapse;width:100%}.admin-table th,.admin-table td{text-align:left;border-bottom:1px solid var(--border-color);padding:1.25rem 1.5rem}.admin-table th{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;background-color:#f8fafc;font-size:.875rem;font-weight:600}.admin-table tr:hover{background-color:#f8fafc}.btn-icon{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:.375rem;justify-content:center;align-items:center;padding:.5rem;transition:all .2s;display:inline-flex}.btn-icon:hover{color:var(--primary-color);background-color:#e2e8f0}.btn-outline{border:1px solid var(--border-color);color:var(--text-main);background:0 0;border-radius:.5rem;align-items:center;gap:.25rem;padding:.5rem 1rem;font-weight:500;transition:all .2s;display:inline-flex}.btn-outline:hover:not(:disabled){background-color:#f1f5f9}.btn-outline:disabled{opacity:.5;cursor:not-allowed}.webinar-select{border:1px solid var(--border-color);min-width:250px;color:var(--text-main);background-color:#fff;border-radius:.5rem;padding:.625rem 1rem;font-family:inherit;font-size:1rem}.tabs-container{border-bottom:1px solid var(--border-color);margin-bottom:1.5rem;display:flex}.tab-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;transition:all .2s}.tab-btn.active{color:var(--primary-color);border-bottom-color:var(--primary-color)}.tab-btn:hover:not(.active){color:var(--text-main);background-color:#f8fafc}.schedule-row{border:1px solid var(--border-color);background-color:#f8fafc;border-radius:.5rem;flex-wrap:wrap;align-items:center;gap:.75rem;margin-bottom:.75rem;padding:1rem;display:flex}.schedule-row select,.schedule-row input{flex:1;width:auto;padding:.5rem;font-size:.875rem}.youtube-overlay{z-index:10;background-color:#1e293b;background-position:50%;background-size:cover;justify-content:center;align-items:center;transition:opacity .4s;display:flex;position:absolute;inset:0}.spinner{border:4px solid #ffffff4d;border-top:4px solid var(--primary-color);border-radius:50%;width:50px;height:50px;animation:1s linear infinite spin}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.waiting-room{background-color:var(--bg-color);color:var(--text-main);flex-direction:column;min-height:100vh;display:flex}.waiting-content{flex:1;justify-content:center;align-items:center;padding:2rem;display:flex}.waiting-card{box-shadow:var(--shadow-lg);text-align:center;border:1px solid var(--border-color);background:#fff;border-radius:1.5rem;width:100%;max-width:650px;padding:4rem 3rem}.timer-display{color:var(--primary-color);letter-spacing:-2px;margin:2rem 0;font-family:Inter,monospace;font-size:4.5rem;font-weight:800;line-height:1}