.install-button{display:inline-flex;align-items:center;gap:.5rem;padding:.75rem 1.25rem;border:none;border-radius:.5rem;font-size:.95rem;font-weight:600;font-family:inherit;cursor:pointer;transition:transform .1s,box-shadow .2s}.install-button:active{transform:scale(.98)}.install-icon{font-size:1.1rem}.install-button-primary{background:var(--color-primary);color:#fff;box-shadow:0 4px 12px #1a73e84d}.install-button-primary:hover{box-shadow:0 6px 16px #1a73e866}.install-button-ios{background:#1a73e81a;color:var(--color-primary);border:2px solid var(--color-primary)}.ios-hint-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000c;display:flex;align-items:flex-end;justify-content:center;z-index:100;padding:1rem;animation:fadeIn .2s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.ios-hint-card{width:100%;max-width:380px;background:#fff;border-radius:1rem 1rem 0 0;padding:1.5rem;position:relative;animation:slideUp .3s ease-out}@keyframes slideUp{0%{transform:translateY(100%);opacity:0}to{transform:translateY(0);opacity:1}}.ios-hint-title{font-size:1.15rem;font-weight:700;margin-bottom:1rem;color:var(--color-text)}.ios-hint-steps{list-style:decimal;list-style-position:inside;color:var(--color-text-light);font-size:.95rem;line-height:1.6;margin-bottom:1.5rem}.ios-hint-steps li{margin-bottom:.75rem}.ios-hint-steps strong{color:var(--color-text)}.share-icon{display:inline-block;margin-left:.25rem}.ios-hint-close{width:100%;padding:.875rem;background:var(--color-primary);color:#fff;border:none;border-radius:.5rem;font-size:1rem;font-weight:600;font-family:inherit;cursor:pointer}.ios-hint-arrow{position:absolute;bottom:-2.5rem;left:50%;transform:translate(-50%);font-size:1.5rem;animation:bounce 1s ease-in-out infinite}@keyframes bounce{0%,to{transform:translate(-50%) translateY(0)}50%{transform:translate(-50%) translateY(8px)}}:root{--color-primary: #1a73e8;--color-primary-dark: #1557b0;--color-primary-light: #4285f4;--color-success: #34a853;--color-gold: #f9ab00;--color-bg: #f0f4f8;--color-card: #ffffff;--color-text: #1e293b;--color-text-light: #64748b;--radius: 1rem;--shadow: 0 10px 40px rgba(0, 0, 0, .12)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;overflow:hidden}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none}#root{height:100%}.loading-screen{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;background:var(--color-bg)}.spinner{width:48px;height:48px;border:4px solid rgba(26,115,232,.2);border-top-color:var(--color-primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.login-page{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:1.5rem;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%)}.login-card{width:100%;max-width:360px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:2rem}.login-logo{text-align:center;margin-bottom:2rem}.login-logo h1{font-size:1.75rem;color:var(--color-primary)}.login-logo p{color:var(--color-text-light);font-size:.875rem;margin-top:.25rem}.form-group{margin-bottom:1.25rem}.form-label{display:block;font-weight:500;font-size:.875rem;margin-bottom:.5rem}.form-input{width:100%;padding:.75rem 1rem;border:2px solid #e2e8f0;border-radius:.5rem;font-size:1rem;font-family:inherit;transition:border-color .2s}.form-input:focus{outline:none;border-color:var(--color-primary)}.btn{display:block;width:100%;padding:.875rem;border:none;border-radius:.5rem;font-size:1rem;font-weight:600;font-family:inherit;cursor:pointer;transition:transform .1s,background .2s}.btn:active{transform:scale(.98)}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:disabled{opacity:.6}.login-error{background:#ea43351a;color:#ea4335;padding:.75rem 1rem;border-radius:.5rem;margin-bottom:1rem;font-size:.875rem;text-align:center}.login-install-hint{margin-top:1.5rem;text-align:center}.card-page{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:1rem;background:var(--color-bg)}.id-card{width:100%;max-width:380px;background:var(--color-card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;position:relative}.id-card.teacher{border:3px solid var(--color-gold)}.id-card.teacher .card-header{background:linear-gradient(135deg,var(--color-gold) 0%,#e68a00 100%)}.card-header{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);color:#fff;padding:1rem 1.25rem;display:flex;justify-content:space-between;align-items:center}.school-name{font-weight:700;font-size:1.1rem;line-height:1.2;margin-bottom:2px}.card-type{font-size:.85rem;opacity:.9;font-weight:500}.offline-badge{background:#fff3;padding:.25rem .5rem;border-radius:.25rem;font-size:.7rem}.card-content{padding:1.25rem}.card-top{display:flex;gap:1rem;margin-bottom:1.25rem}.photo-container{width:100px;height:120px;background:#e2e8f0;border-radius:.5rem;overflow:hidden;flex-shrink:0}.photo-container img{width:100%;height:100%;object-fit:cover}.photo-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;font-size:3rem;color:#94a3b8}.student-info{flex:1}.student-name{font-size:1.35rem;font-weight:700;line-height:1.2;margin-bottom:.5rem}.info-row{display:flex;justify-content:space-between;font-size:.875rem;margin-bottom:.25rem}.info-label{color:var(--color-text-light)}.info-value{font-weight:500}.qr-section{text-align:center;padding-top:1rem;border-top:1px solid #e2e8f0}.qr-container{position:relative;display:inline-block}.qr-code{border-radius:.5rem}.hologram-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,#ff008026,#00ffff1f,#ffff001a,#0080ff1f,#ff00ff1a,#00ff801f);background-size:400% 400%;animation:hologram-shimmer 4s ease-in-out infinite;pointer-events:none;border-radius:.5rem;mix-blend-mode:overlay;opacity:.8}.hologram-overlay:after{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:linear-gradient(45deg,transparent 30%,rgba(255,255,255,.4) 50%,transparent 70%);animation:hologram-shine 3s linear infinite;pointer-events:none}@keyframes hologram-shimmer{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}@keyframes hologram-shine{0%{transform:translate(-100%) rotate(45deg)}to{transform:translate(100%) rotate(45deg)}}.qr-timer{margin-top:.75rem;font-size:.875rem;color:var(--color-text-light)}.timer-bar{width:100%;height:4px;background:#e2e8f0;border-radius:2px;overflow:hidden;margin-top:.5rem}.timer-progress{height:100%;background:var(--color-primary);transition:width 1s linear}.validity{text-align:center;padding:.75rem;background:#34a8531a;color:var(--color-success);font-size:.8rem;font-weight:500}.card-footer{padding:1rem;text-align:center}.btn-logout{background:transparent;border:1px solid #e2e8f0;color:var(--color-text-light);padding:.5rem 1rem;border-radius:.5rem;font-size:.875rem;cursor:pointer}.kickout-screen{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:1.5rem;background:linear-gradient(135deg,#ff6b6b,#ee5253)}.kickout-card{width:100%;max-width:360px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:2rem;text-align:center}.kickout-icon{font-size:4rem;margin-bottom:1rem}.kickout-card h2{font-size:1.5rem;margin-bottom:1rem;color:var(--color-text)}.kickout-card p{color:var(--color-text-light);font-size:.95rem;line-height:1.5;margin-bottom:1.5rem}