@import url("https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&family=DM+Mono:wght@400;500&display=swap");*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--azul:#1b4fd8;--azul-hover:#1540b0;--azul-100:#eef2ff;--azul-200:#c7d2fe;--azul-600:#1b4fd8;--verde:#14785a;--verde-100:#ecfdf5;--verde-600:#14785a;--vermelho:#c8382a;--vermelho-100:#fef2f2;--amarelo:#b45309;--amarelo-100:#fffbeb;--cinza-50:#fafaf9;--cinza-100:#f4f4f2;--cinza-200:#e5e5e3;--cinza-400:#9e9e9a;--cinza-600:#6b6b67;--cinza-700:#3d3d3a;--cinza-900:#1a1a18;--branco:#fff;--font:"DM Sans",system-ui,sans-serif;--mono:"DM Mono",monospace;--radius:16px;--radius-sm:10px;--radius-xs:7px;--shadow:0 2px 12px rgba(0,0,0,.07);--shadow-md:0 4px 24px rgba(0,0,0,.1)}html{-webkit-tap-highlight-color:transparent}body{font-family:var(--font);background:var(--cinza-100);color:var(--cinza-900);line-height:1.5;min-height:100vh}a{color:inherit;text-decoration:none}button{cursor:pointer}button,input,select,textarea{font-family:var(--font)}.app-shell{display:flex;min-height:100vh}.main-content{flex:1 1;min-width:0}.main-content,.sidebar{display:flex;flex-direction:column}.sidebar{width:260px;flex-shrink:0;background:var(--branco);border-right:1px solid var(--cinza-200);position:-webkit-sticky;position:sticky;top:0;height:100vh;overflow-y:auto}@media (max-width:768px){.sidebar{display:none}}.sidebar-logo{display:flex;align-items:center;gap:10px;padding:24px 20px 20px;border-bottom:1px solid var(--cinza-200)}.sidebar-logo-mark{width:36px;height:36px;background:var(--azul);border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.sidebar-logo-text{font-size:17px;font-weight:600;letter-spacing:-.3px}.sidebar-logo-text span{color:var(--azul)}.sidebar-nav{padding:12px;flex:1 1}.sidebar-section-label{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;color:var(--cinza-400);padding:8px 10px 6px}.sidebar-link{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-xs);font-size:14px;font-weight:500;color:var(--cinza-600);transition:background .15s,color .15s;margin-bottom:2px}.sidebar-link:hover{background:var(--cinza-100);color:var(--cinza-900)}.sidebar-link.active{background:var(--azul-100);color:var(--azul)}.sidebar-link svg{width:18px;height:18px;flex-shrink:0}.sidebar-footer{padding:16px;border-top:1px solid var(--cinza-200)}.sidebar-user{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-xs);cursor:pointer;transition:background .15s}.sidebar-user:hover{background:var(--cinza-100)}.user-avatar{width:32px;height:32px;background:var(--azul);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:12px;font-weight:600;flex-shrink:0}.user-info{flex:1 1;min-width:0}.user-name{font-size:13px;font-weight:500;color:var(--cinza-900)}.user-email,.user-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.user-email{font-size:11px;color:var(--cinza-400)}.mobile-nav{display:none;position:fixed;bottom:0;left:0;right:0;background:var(--branco);border-top:1px solid var(--cinza-200);z-index:100;padding-bottom:env(safe-area-inset-bottom)}@media (max-width:768px){.mobile-nav{display:flex}.main-content{padding-bottom:64px}}.mobile-nav-btn{flex:1 1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;padding:10px 4px;border:none;background:none;font-size:10px;font-weight:500;color:var(--cinza-400);transition:color .15s}.mobile-nav-btn.active{color:var(--azul)}.mobile-nav-btn svg{width:20px;height:20px}.mobile-topbar{display:none;align-items:center;padding:14px 20px 12px;background:var(--branco);border-bottom:1px solid var(--cinza-200);gap:12px;position:-webkit-sticky;position:sticky;top:0;z-index:50}@media (max-width:768px){.mobile-topbar{display:flex}}.page-wrapper{padding:32px;max-width:960px}@media (max-width:768px){.page-wrapper{padding:20px 16px}}.page-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:28px}@media (max-width:640px){.page-header{flex-direction:column;gap:12px}}.page-title{font-size:24px;font-weight:600;letter-spacing:-.5px;color:var(--cinza-900)}.page-sub{font-size:14px;color:var(--cinza-400);margin-top:4px}.card{background:var(--branco);border:1px solid var(--cinza-200);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.card-sm{padding:16px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));grid-gap:12px;gap:12px;margin-bottom:28px}.stat-card{background:var(--branco);border:1px solid var(--cinza-200);border-radius:var(--radius-sm);padding:20px}.stat-num{font-size:32px;font-weight:600;font-family:var(--mono);color:var(--azul);line-height:1}.stat-label{font-size:12px;color:var(--cinza-400);margin-top:6px}.form-group{margin-bottom:18px}.form-label{display:block;font-size:12px;font-weight:500;color:var(--cinza-600);text-transform:uppercase;letter-spacing:.5px;margin-bottom:7px}.form-input{width:100%;padding:12px 14px;border:1.5px solid var(--cinza-200);border-radius:var(--radius-sm);font-size:15px;color:var(--cinza-900);background:var(--branco);outline:none;transition:border-color .2s;-webkit-appearance:none}.form-input:focus{border-color:var(--azul)}.form-input::placeholder{color:var(--cinza-400)}.form-error{font-size:12px;color:var(--vermelho);margin-top:5px}.form-row{display:grid;grid-template-columns:1fr 1fr;grid-gap:12px;gap:12px}@media (max-width:400px){.form-row{grid-template-columns:1fr}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:var(--radius-sm);border:none;font-size:14px;font-weight:500;transition:all .15s;cursor:pointer;white-space:nowrap;text-decoration:none}.btn-full{width:100%}.btn-sm{padding:8px 14px;font-size:13px;border-radius:var(--radius-xs)}.btn-xs{padding:6px 10px;font-size:12px;border-radius:6px}.btn-primary{background:var(--azul);color:#fff}.btn-primary:hover{background:var(--azul-hover)}.btn-primary:active{background:#1032a0}.btn-secondary{background:var(--cinza-100);color:var(--cinza-700);border:1.5px solid var(--cinza-200)}.btn-secondary:hover{background:var(--cinza-200)}.btn-success{background:var(--verde);color:#fff}.btn-success:hover{background:#0f5e46}.btn-danger{background:var(--vermelho);color:#fff}.btn-danger:hover{background:#a62d22}.btn-ghost{background:transparent;color:var(--cinza-600)}.btn-ghost:hover{background:var(--cinza-100)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn svg{width:16px;height:16px;flex-shrink:0}.badge{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:20px;font-size:11px;font-weight:500}.badge-dot{width:6px;height:6px;border-radius:50%;background:currentColor}.badge-green{background:var(--verde-100);color:var(--verde)}.badge-blue{background:var(--azul-100);color:var(--azul)}.badge-gray{background:var(--cinza-200);color:var(--cinza-600)}.badge-red{background:var(--vermelho-100);color:var(--vermelho)}.badge-yellow{background:var(--amarelo-100);color:var(--amarelo)}.list-item{display:flex;align-items:center;gap:14px;padding:16px 20px;border-bottom:1px solid var(--cinza-200);transition:background .15s}.list-item:last-child{border-bottom:none}.list-item:hover{background:var(--cinza-50)}.empty-state{text-align:center;padding:56px 24px;color:var(--cinza-400)}.empty-icon{font-size:48px;margin-bottom:14px}.empty-title{font-size:16px;font-weight:500;color:var(--cinza-700);margin-bottom:6px}.empty-sub{font-size:13px;line-height:1.6;max-width:280px;margin:0 auto}.alert{display:flex;align-items:flex-start;gap:12px;padding:14px 16px;border-radius:var(--radius-sm);font-size:14px;line-height:1.5}.alert-icon{font-size:18px;flex-shrink:0;margin-top:1px}.alert-info{background:var(--azul-100);color:var(--azul)}.alert-success{background:var(--verde-100);color:var(--verde)}.alert-error{background:var(--vermelho-100);color:var(--vermelho)}.alert-warning{background:var(--amarelo-100);color:var(--amarelo)}.qr-wrap{display:flex;flex-direction:column;align-items:center;padding:28px;background:#fff;border:1px solid var(--cinza-200);border-radius:var(--radius);box-shadow:var(--shadow)}.geo-dot{width:10px;height:10px;border-radius:50%;background:var(--cinza-400);flex-shrink:0}.geo-dot.ok{background:var(--verde);animation:pulse 2s infinite}.geo-dot.bad{background:var(--vermelho)}@keyframes pulse{0%,to{box-shadow:0 0 0 0 rgba(20,120,90,.3)}50%{box-shadow:0 0 0 6px rgba(20,120,90,0)}}.divider{height:1px;background:var(--cinza-200)}.spinner{width:20px;height:20px;border:2px solid var(--cinza-200);border-top-color:var(--azul);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:200;display:flex;align-items:flex-end;justify-content:center;padding:16px}@media (min-width:640px){.modal-backdrop{align-items:center}}.modal{background:var(--branco);border-radius:var(--radius) var(--radius) var(--radius-sm) var(--radius-sm);padding:28px 24px 24px;width:100%;max-width:480px;max-height:90vh;overflow-y:auto}@media (min-width:640px){.modal{border-radius:var(--radius)}}.modal-title{font-size:18px;font-weight:600;letter-spacing:-.3px;margin-bottom:20px}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:var(--cinza-100)}.auth-card{background:var(--branco);border:1px solid var(--cinza-200);border-radius:var(--radius);padding:36px 32px;width:100%;max-width:400px;box-shadow:var(--shadow-md)}@media (max-width:440px){.auth-card{padding:28px 20px}}.auth-logo{gap:10px;margin-bottom:28px}.auth-logo,.auth-logo-mark{display:flex;align-items:center}.auth-logo-mark{width:40px;height:40px;background:var(--azul);border-radius:12px;justify-content:center}.auth-title{font-size:22px;font-weight:600;letter-spacing:-.4px;margin-bottom:6px}.auth-sub{font-size:14px;color:var(--cinza-400);margin-bottom:28px}.student-hero{background:var(--azul);padding:40px 24px 32px;color:#fff}.student-hero-emoji{font-size:36px;margin-bottom:10px}.student-hero-title{font-size:22px;font-weight:600;letter-spacing:-.4px}.student-hero-sub{font-size:14px;opacity:.75;margin-top:4px}.flex{display:flex}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-2{gap:8px}.gap-3{gap:12px}.mt-2{margin-top:8px}.mt-3{margin-top:12px}.mt-4{margin-top:16px}.mb-4{margin-bottom:16px}.text-sm{font-size:13px}.text-xs{font-size:11px}.text-muted{color:var(--cinza-400)}.text-center{text-align:center}.font-mono{font-family:var(--mono)}.font-semibold{font-weight:600}.w-full{width:100%}.min-w-0{min-width:0}.flex-1{flex:1 1}.truncate{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}