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80%,var(--app-bg-blob-1) 0%,transparent 50%),radial-gradient(circle at 80% 20%,var(--app-bg-blob-2) 0%,transparent 50%),radial-gradient(circle at 40% 40%,var(--app-bg-blob-3) 0%,transparent 50%);position:absolute;top:0;right:0;bottom:0;left:0}.shape{opacity:.4;filter:blur(1px);border-radius:50%;animation:20s ease-in-out infinite float;position:absolute}.shape-1{background:radial-gradient(circle,var(--color-accent-yellow) 0%,transparent 70%);width:400px;height:400px;animation-delay:0s;top:-10%;right:-10%}.shape-2{background:radial-gradient(circle,var(--color-accent-red) 0%,transparent 70%);width:350px;height:350px;animation-delay:-7s;bottom:5%;left:-8%}.shape-3{background:radial-gradient(circle,var(--color-accent-teal) 0%,transparent 70%);width:280px;height:280px;animation-delay:-14s;top:35%;right:8%}.shape-4{background:radial-gradient(circle,var(--color-accent-purple) 0%,transparent 70%);width:200px;height:200px;animation-delay:-10s;top:15%;left:12%}@keyframes float{0%,to{transform:translate(0)rotate(0)scale(1)}25%{transform:translate(30px,-40px)rotate(8deg)scale(1.08)}50%{transform:translate(-20px,25px)rotate(-5deg)scale(.92)}75%{transform:translate(35px,30px)rotate(6deg)scale(1.05)}}.glass-card{background:var(--color-bg-glass);-webkit-backdrop-filter:blur(24px)saturate(180%);border:1px solid var(--surface-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-card);transition:all var(--transition-bounce)}.glass-card:hover{box-shadow:var(--shadow-card-hover),0 0 40px #4ecdc433;border-color:#4ecdc44d;transform:translateY(-6px)scale(1.02)}.btn{justify-content:center;align-items:center;gap:var(--space-sm);padding:var(--space-md) var(--space-xl);font-family:var(--font-display);border-radius:var(--radius-full);cursor:pointer;transition:all var(--transition-base);letter-spacing:.02em;border:none;font-size:1.05rem;font-weight:600;text-decoration:none;display:inline-flex;position:relative;overflow:hidden}.btn:after{content:"";opacity:0;transition:opacity var(--transition-fast);background:linear-gradient(135deg,#fff3,#0000 50%);position:absolute;top:0;right:0;bottom:0;left:0}.btn:hover:after{opacity:1}.btn:active{transform:scale(.96)}.btn-primary{color:#fff;background:linear-gradient(135deg,#ff4757,#ff6b81);box-shadow:0 4px 20px #ff475766}.btn-primary:hover{background:linear-gradient(135deg,#ff6b81,#ff4757);transform:translateY(-3px);box-shadow:0 8px 32px #ff475780}.btn-secondary{background:var(--surface-solid);color:var(--color-text-primary);box-shadow:var(--shadow-soft);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:2px solid #4ecdc44d}.btn-secondary:hover{background:var(--surface-hover);border-color:var(--color-accent-teal);box-shadow:var(--shadow-card);transform:translateY(-3px)}.btn-back{background:var(--surface-solid);color:var(--color-text-secondary);padding:var(--space-sm) var(--space-lg);border:1px solid var(--surface-border);box-shadow:var(--shadow-soft);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);font-size:.95rem}.btn-back:hover{background:var(--surface-hover);color:var(--color-accent-teal);border-color:var(--color-accent-teal);transform:translateY(-2px)}.input-field{width:100%;padding:var(--space-lg) var(--space-xl);font-family:var(--font-body);color:var(--color-text-primary);background:var(--input-bg);border-radius:var(--radius-lg);transition:all var(--transition-base);letter-spacing:.2em;text-align:center;text-transform:uppercase;border:2px solid #4ecdc433;outline:none;font-size:1.3rem;font-weight:700;box-shadow:0 4px 16px #0000000f}.input-field::placeholder{color:var(--color-text-muted);letter-spacing:.05em;text-transform:none;font-size:1rem;font-weight:400}.input-field:focus{border-color:var(--color-accent-teal);background:var(--surface-hover);box-shadow:0 0 0 4px #4ecdc426,0 4px 20px #4ecdc41a}.input-error{border-color:var(--color-accent-red)}.error-text{color:var(--color-accent-red);margin-top:var(--space-sm);text-align:center;font-size:.875rem;font-weight:500}.cards-grid{gap:var(--space-lg);width:100%;padding-bottom:var(--space-3xl);grid-template-columns:repeat(auto-fill,minmax(240px,1fr));display:grid}.class-card{padding:var(--space-xl) var(--space-lg);border-radius:var(--radius-2xl);cursor:pointer;text-align:center;align-items:center;gap:var(--space-md);color:#fff;min-height:200px;transition:all var(--transition-bounce);border:2px solid #fff3;flex-direction:column;justify-content:center;text-decoration:none;display:flex;position:relative;overflow:hidden;box-shadow:0 8px 32px #00000026}.class-card:before{content:"";transition:opacity var(--transition-base);background:linear-gradient(135deg,#ffffff40,#0000 60%);position:absolute;top:0;right:0;bottom:0;left:0}.class-card:after{content:"";opacity:0;transition:opacity var(--transition-base);background:radial-gradient(circle at 30% 20%,#ffffff4d,#0000 60%);position:absolute;top:0;right:0;bottom:0;left:0}.class-card:hover{border-color:#fff6;transform:translateY(-8px)scale(1.04);box-shadow:0 16px 48px #0003}.class-card:hover:after{opacity:1}.class-card__emoji{filter:drop-shadow(0 4px 8px #0003);transition:all var(--transition-bounce);font-size:3.5rem}.class-card:hover .class-card__emoji{transform:scale(1.25)rotate(-8deg)translateY(-4px)}.class-card__name{font-family:var(--font-display);text-shadow:0 2px 4px #0003;font-size:1.4rem;font-weight:700}.class-card__age{border-radius:var(--radius-full);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);letter-spacing:.02em;background:#ffffff4d;padding:6px 16px;font-size:.85rem;font-weight:500}.game-card{padding:var(--space-2xl) var(--space-xl);border-radius:var(--radius-2xl);cursor:pointer;text-align:center;align-items:center;gap:var(--space-md);color:#fff;min-height:240px;transition:all var(--transition-bounce);border:2px solid #fff3;flex-direction:column;justify-content:center;text-decoration:none;display:flex;position:relative;overflow:hidden;box-shadow:0 8px 32px #00000026}.game-card:before{content:"";opacity:0;transition:opacity var(--transition-base);background:linear-gradient(135deg,#fff3,#0000 60%);position:absolute;top:0;right:0;bottom:0;left:0}.game-card:after{content:"";opacity:0;width:200%;height:200%;transition:opacity var(--transition-base);pointer-events:none;background:radial-gradient(circle,#ffffff1a,#0000 60%);position:absolute;top:-50%;left:-50%}.game-card:hover{border-color:#fff6;transform:translateY(-8px)scale(1.04);box-shadow:0 16px 48px #0003}.game-card:hover:before,.game-card:hover:after{opacity:1}.game-card--locked{opacity:.5;cursor:not-allowed;filter:saturate(.5)brightness(.9)}.game-card--locked:hover{transform:none;box-shadow:0 8px 32px #00000026}.game-card__emoji{transition:all var(--transition-bounce);filter:drop-shadow(0 4px 8px #0003);font-size:4rem}.game-card:hover .game-card__emoji{transform:scale(1.35)rotate(8deg)translateY(-6px)}.game-card__name{font-family:var(--font-display);text-shadow:0 2px 4px #0003;font-size:1.35rem;font-weight:700}.game-card__desc{opacity:.9;max-width:220px;font-size:.9rem;line-height:1.4}.game-card__badge{top:var(--space-md);right:var(--space-md);border-radius:var(--radius-full);text-transform:uppercase;letter-spacing:.08em;padding:6px 14px;font-size:.7rem;font-weight:700;position:absolute}.game-card__badge--live{color:#fff;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:linear-gradient(135deg,#ffffff59,#ffffff26);border:1px solid #ffffff4d}.game-card__badge--soon{color:#fffc;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0000004d}.header{padding:var(--space-md) var(--space-xl);z-index:100;background:var(--surface);-webkit-backdrop-filter:blur(20px)saturate(180%);border-bottom:1px solid var(--header-border);transition:background var(--transition-base),border-color var(--transition-base);justify-content:space-between;align-items:center;display:flex;position:sticky;top:0;box-shadow:0 1px 3px #0000000d}.header__logo{align-items:center;gap:var(--space-sm);transition:transform var(--transition-base);text-decoration:none;display:flex}.header__logo:hover{transform:scale(1.05)}.header__logo img{width:auto;height:48px}.header__school{align-items:center;gap:var(--space-sm);color:var(--color-text-secondary);background:var(--chip-bg);padding:var(--space-sm) var(--space-lg);border-radius:var(--radius-full);border:1px solid var(--surface-border);letter-spacing:.01em;font-size:.9rem;font-weight:600;display:flex;box-shadow:0 2px 8px #0000000a}.page-header{text-align:center;padding:var(--space-3xl) 0 var(--space-2xl)}.page-header__title{margin-bottom:var(--space-md);color:var(--color-text-primary);text-shadow:0 2px 4px #0000000d}.page-header__subtitle{color:var(--color-text-secondary);font-size:1.15rem;font-weight:500}.landing-bg-video{z-index:-2;position:fixed;top:0;right:0;bottom:0;left:0;overflow:hidden}.landing-bg-video__el{object-fit:cover;width:100%;height:100%}.landing-bg-video__overlay{-webkit-backdrop-filter:blur(2px);background:linear-gradient(#87ceeb4d,#e8f4fd73,#e8f4fd99);position:absolute;top:0;right:0;bottom:0;left:0}.landing{text-align:center;padding:var(--space-3xl) var(--space-lg);justify-content:center;align-items:center;gap:var(--space-xl);z-index:1;flex-direction:column;flex:1;display:flex;position:relative}.landing__logo{filter:drop-shadow(0 12px 40px #0003);width:clamp(220px,38vw,360px);height:auto;transition:all var(--transition-bounce)}.landing__logo:hover{filter:drop-shadow(0 16px 48px #00000040);transform:scale(1.08)rotate(-3deg)}.landing__tagline{color:#fff;text-shadow:0 2px 12px #0000004d;max-width:520px;font-size:clamp(1.15rem,2.8vw,1.5rem);font-weight:600;line-height:1.5}.landing__features{gap:var(--space-lg);margin-top:var(--space-lg);flex-wrap:wrap;justify-content:center;display:flex}.landing__feature{align-items:center;gap:var(--space-sm);color:#fff;padding:var(--space-md) var(--space-xl);border-radius:var(--radius-full);-webkit-backdrop-filter:blur(12px);transition:all var(--transition-base);background:#ffffff26;border:1px solid #ffffff40;font-size:1rem;font-weight:600;display:flex;box-shadow:0 4px 16px #0000001a}.landing__feature:hover{background:#ffffff40;transform:translateY(-3px);box-shadow:0 8px 24px #00000026}.landing__feature-icon{font-size:1.4rem}.code-entry{padding:var(--space-3xl) var(--space-lg);justify-content:center;align-items:center;gap:var(--space-xl);flex-direction:column;flex:1;display:flex}.code-entry__card{padding:var(--space-3xl) var(--space-2xl);align-items:center;gap:var(--space-xl);background:var(--surface-solid);border-radius:var(--radius-2xl);border:1px solid var(--surface-border);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);flex-direction:column;width:100%;max-width:480px;display:flex;box-shadow:0 20px 60px #0000001a,0 4px 16px #0000000d}.code-entry__icon{filter:drop-shadow(0 4px 8px #0000001a);font-size:3.5rem}.code-entry__title{font-family:var(--font-display);color:var(--color-text-primary);text-align:center;font-size:1.6rem}.code-entry__hint{color:var(--color-text-muted);text-align:center;font-size:.9rem}.game-wrapper{padding:var(--space-xl);align-items:center;gap:var(--space-xl);flex-direction:column;flex:1;display:flex}.game-wrapper__header{width:100%;max-width:960px;padding:var(--space-md) var(--space-lg);background:var(--surface);border-radius:var(--radius-xl);box-shadow:var(--shadow-soft);border:1px solid var(--surface-border);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);justify-content:space-between;align-items:center;display:flex}.game-wrapper__title{font-family:var(--font-display);align-items:center;gap:var(--space-sm);color:var(--color-text-primary);font-size:1.4rem;display:flex}.game-wrapper__canvas{aspect-ratio:16/10;border-radius:var(--radius-2xl);background:#000;border:3px solid #ffffffe6;width:100%;max-width:960px;overflow:hidden;box-shadow:0 16px 64px #0003,0 4px 16px #0000001a}@media(max-width:768px){.cards-grid{gap:var(--space-md);grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}.class-card{padding:var(--space-lg);min-height:160px}.class-card__emoji{font-size:2.5rem}.game-card{padding:var(--space-xl) var(--space-lg);min-height:200px}.landing__features{flex-direction:column;align-items:center}.header__school{display:none}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(32px)}to{opacity:1;transform:translateY(0)}}@keyframes bounceIn{0%{opacity:0;transform:scale(.7)}60%{transform:scale(1.08)}80%{transform:scale(.96)}to{opacity:1;transform:scale(1)}}@keyframes slideIn{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.animate-in{animation:.7s cubic-bezier(.4,0,.2,1) forwards fadeInUp}.animate-in-delay-1{opacity:0;animation-delay:.12s}.animate-in-delay-2{opacity:0;animation-delay:.24s}.animate-in-delay-3{opacity:0;animation-delay:.36s}.animate-in-delay-4{opacity:0;animation-delay:.48s}.game-wrapper:fullscreen{background:linear-gradient(135deg,#1a1a2e,#16213e);justify-content:center;align-items:center;padding:0}.game-wrapper:fullscreen .game-wrapper__header{padding:var(--space-md) var(--space-xl);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#ffffff1a;border-bottom:1px solid #ffffff1a;max-width:100%}.game-wrapper:fullscreen .game-wrapper__title{color:#fff}.game-wrapper:fullscreen .btn-back{color:#fff;background:#ffffff1a;border-color:#fff3}.game-wrapper:fullscreen .btn-back:hover{background:#fff3}.game-wrapper:fullscreen .game-wrapper__canvas{border:none;border-radius:0;flex:1;justify-content:center;align-items:center;max-width:100%;display:flex}.sound-toggle{bottom:var(--space-xl);right:var(--space-xl);z-index:200;-webkit-backdrop-filter:blur(16px);cursor:pointer;width:56px;height:56px;transition:all var(--transition-base);background:#fff3;border:2px solid #fff6;border-radius:50%;justify-content:center;align-items:center;font-size:1.5rem;display:flex;position:fixed;box-shadow:0 8px 32px #00000026}.sound-toggle:hover{background:#ffffff59;transform:scale(1.12);box-shadow:0 12px 40px #0003}.sound-toggle:active{transform:scale(.95)}.theme-toggle{border-radius:var(--radius-full);border:1px solid var(--surface-border);background:var(--surface-solid);width:46px;height:46px;color:var(--color-text-primary);cursor:pointer;box-shadow:var(--shadow-soft);-webkit-backdrop-filter:blur(12px);transition:background var(--transition-base),color var(--transition-base),border-color var(--transition-base);justify-content:center;align-items:center;display:inline-flex}.theme-toggle:hover{border-color:var(--color-accent-teal);color:var(--color-accent-teal)}.theme-toggle--floating{top:var(--space-lg);right:var(--space-lg);z-index:200;width:52px;height:52px;position:fixed}.header__actions{align-items:center;gap:var(--space-md);display:flex}.breadcrumb{align-items:center;gap:var(--space-xs);color:var(--color-text-secondary);flex-wrap:wrap;font-size:.9rem;font-weight:600;display:inline-flex}.breadcrumb a{color:var(--color-text-secondary);border-radius:var(--radius-full);transition:all var(--transition-fast);padding:4px 10px;text-decoration:none}.breadcrumb a:hover{color:var(--color-accent-teal);background:var(--surface)}.breadcrumb__sep{opacity:.5}.breadcrumb__current{color:var(--color-text-primary)}.demo-chips{gap:var(--space-sm);flex-wrap:wrap;justify-content:center;display:flex}.demo-chip{font-family:var(--font-display);letter-spacing:.08em;border-radius:var(--radius-full);border:2px dashed var(--color-border-soft);background:var(--input-bg);color:var(--color-text-secondary);cursor:pointer;transition:all var(--transition-bounce);padding:8px 16px;font-size:.85rem;font-weight:700}.demo-chip:hover{border-style:solid;border-color:var(--color-accent-teal);color:var(--color-accent-teal);transform:translateY(-2px)scale(1.05)}.eyebrow{align-items:center;gap:var(--space-sm);border-radius:var(--radius-full);background:var(--surface);border:1px solid var(--surface-border);color:var(--color-text-secondary);letter-spacing:.04em;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:var(--shadow-soft);padding:6px 18px;font-size:.85rem;font-weight:700;display:inline-flex}.count-pill{border-radius:var(--radius-full);background:var(--surface);border:1px solid var(--surface-border);color:var(--color-text-secondary);align-items:center;gap:6px;padding:4px 14px;font-size:.8rem;font-weight:700;display:inline-flex}@keyframes shake{0%,to{transform:translate(0)}20%{transform:translate(-10px)}40%{transform:translate(10px)}60%{transform:translate(-6px)}80%{transform:translate(6px)}}.shake{animation:.45s cubic-bezier(.36,.07,.19,.97) shake}@media(prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-gradient-position{syntax:"*";inherits:false}@property --tw-gradient-from{syntax:"<color>";inherits:false;initial-value:#0000}@property --tw-gradient-via{syntax:"<color>";inherits:false;initial-value:#0000}@property --tw-gradient-to{syntax:"<color>";inherits:false;initial-value:#0000}@property --tw-gradient-stops{syntax:"*";inherits:false}@property --tw-gradient-via-stops{syntax:"*";inherits:false}@property --tw-gradient-from-position{syntax:"<length-percentage>";inherits:false;initial-value:0%}@property --tw-gradient-via-position{syntax:"<length-percentage>";inherits:false;initial-value:50%}@property --tw-gradient-to-position{syntax:"<length-percentage>";inherits:false;initial-value:100%}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}@property --tw-duration{syntax:"*";inherits:false}