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768px){.tariff-translation-management{padding:16px}.translation-controls{flex-direction:column;gap:16px}.plans-grid{grid-template-columns:1fr}.plan-card{margin-bottom:16px}.modal-overlay{padding:10px}.modal-content{max-width:100%}.editor-tabs{flex-direction:column;gap:4px}.language-selector{flex-wrap:wrap}.form-actions{flex-direction:column}.feature-item{flex-direction:column;gap:12px;align-items:stretch}.feature-actions{justify-content:flex-end}}.geogebra-test-page{min-height:100vh;background:#f8fafc;display:flex;flex-direction:column}.geogebra-test-container{max-width:1400px;margin:0 auto;padding:24px;flex:1}.geogebra-test-header{text-align:center;margin-bottom:32px}.geogebra-test-header h1{font-size:2.5rem;font-weight:600;color:#1e293b;margin-bottom:8px}.geogebra-test-header p{font-size:1.125rem;color:#64748b}.error-message{background:#fef2f2;border:1px solid #fecaca;border-radius:8px;padding:16px;margin-bottom:24px}.error-message h3{color:#dc2626;margin-bottom:8px}.error-message 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infinite}.hero-element-1{top:20%;left:10%;animation-delay:0s}.hero-element-2{top:15%;right:20%;animation-delay:1.5s}.hero-element-3{bottom:25%;left:15%;animation-delay:3s}.hero-element-4{bottom:20%;right:10%;animation-delay:4.5s}.hero-element-5{top:60%;right:25%;animation-delay:6s}.hero-element-content{background:#ffffffe6;border-radius:12px;padding:8px;box-shadow:0 4px 20px #0000001a;backdrop-filter:blur(10px)}.hero-element-trail{position:absolute;top:50%;left:50%;width:2px;height:30px;background:linear-gradient(to bottom,rgba(255,215,0,.8),transparent);transform:translate(-50%,-100%);animation:trail-glow 2s ease-in-out infinite}.hero-screen{position:absolute;top:20%;right:10%;background:#fffffff2;border-radius:16px;padding:20px;box-shadow:0 10px 40px #0003;backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.3);animation:screen-float 4s ease-in-out infinite}.hero-screen-header{display:flex;justify-content:center;margin-bottom:16px}.hero-screen-dots 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infinite}.hero-symbol-1{top:15%;left:15%;animation-delay:0s}.hero-symbol-2{top:25%;right:20%;animation-delay:2s}.hero-symbol-3{bottom:30%;left:10%;animation-delay:4s}.hero-symbol-4{bottom:20%;right:15%;animation-delay:6s}.hero-symbol-5{top:50%;left:5%;animation-delay:8s}.hero-progress-bars{position:absolute;inset:0}.hero-progress-bar{position:absolute;width:80px;height:4px;background:#fff3;border-radius:2px;overflow:hidden}.hero-progress-1{top:40%;right:25%;animation:progress-bar-1 3s ease-in-out infinite}.hero-progress-2{bottom:40%;left:25%;animation:progress-bar-2 4s ease-in-out infinite}.hero-progress-fill{height:100%;background:linear-gradient(90deg,gold,#ffed4e);border-radius:2px;animation:progress-fill 2s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}@keyframes underline-glow{0%{box-shadow:0 0 5px #ffd70080}to{box-shadow:0 0 20px #ffd700cc}}@keyframes 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1rem}.header-content{display:flex;align-items:center;justify-content:space-between;height:4rem}.logo-link{font-size:1.5rem;font-weight:700;color:#2563eb;text-decoration:none;transition:color .2s ease}.logo-link:hover{color:#1d4ed8}.nav{display:flex;align-items:center;gap:1rem}.user-name{color:#64748b;font-size:.875rem}.hero{padding:4rem 0;background:linear-gradient(135deg,#eff6ff,#fff,#f0fdf4);position:relative;overflow:hidden}.hero:before{content:"";position:absolute;inset:0;opacity:.05;background-image:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%232563eb' fill-opacity='0.1'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");background-repeat:repeat}.hero-container{max-width:1280px;margin:0 auto;padding:0 1rem;position:relative;z-index:10}.hero-content{display:grid;grid-template-columns:1fr 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infinite}.math-element-1{top:1rem;left:1rem;animation-delay:0s}.math-element-2{top:2rem;right:2rem;animation-delay:.5s}.math-element-3{bottom:2rem;left:2rem;animation-delay:1s}.math-element-4{bottom:1rem;right:1rem;animation-delay:1.5s}.illustration-title{font-size:1.125rem;font-weight:600;color:#374151;margin-top:1rem}.illustration-subtitle{font-size:.875rem;color:#6b7280}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.5rem 1rem;font-size:.875rem;font-weight:500;border-radius:.5rem;transition:all .2s ease;cursor:pointer;border:1px solid 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