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.active{background:#f1f5f7;color:#1d5d79;font-weight:700}.media-card{min-height:80px;display:grid;align-content:end;background:linear-gradient(145deg,#25685fe6,#0b2a35cc)}.quiz-option.correct{background:#3dc98ae6}.quiz-option.wrong{background:#ff5d81e6}.chat-avatar{width:100%;height:170px;border-radius:14px;background:linear-gradient(180deg,#92cde0e6,#7db8cdd9);border:1px solid rgba(234,242,246,.26);overflow:hidden}.chat-avatar img{width:100%;height:100%;display:block;object-fit:contain;object-position:center center}.chat-header{font-weight:700;line-height:1.4}.chat-bubble{border-radius:12px;border:1px solid rgba(232,241,246,.22);padding:10px;font-size:.78rem;line-height:1.45}.chat-bubble.bot{background:#4f849f80}.chat-bubble.user{background:#f1ebde;color:#245d72;align-self:flex-end;width:90%}.profile-card{text-align:center}.profile-pic{width:78px;height:78px;border-radius:50%;margin:0 auto 10px;padding:4px;background:linear-gradient(145deg,#ff4f84,#ed8771);box-shadow:0 8px 20px 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var(--accent-coral)}.intro-logo{font-size:3rem;font-weight:800;color:#fff;letter-spacing:4px;opacity:0;filter:blur(10px);animation:logoEmerge 2s cubic-bezier(.16,1,.3,1) .6s forwards;text-shadow:0 0 30px rgba(255,255,255,.5)}@keyframes streakSweep{0%{transform:translateY(-50%) scaleX(0);transform-origin:left;opacity:0}50%{transform:translateY(-50%) scaleX(1);transform-origin:left;opacity:1}50.1%{transform-origin:right}to{transform:translateY(-50%) scaleX(0);transform-origin:right;opacity:0}}@keyframes logoEmerge{0%{opacity:0;filter:blur(10px);transform:scale(1.1);letter-spacing:12px}40%{opacity:1;filter:blur(0px);transform:scale(1);letter-spacing:4px}80%{opacity:1;filter:blur(0px);transform:scale(1);letter-spacing:4px}to{opacity:0;filter:blur(10px);transform:scale(.9)}}@keyframes cinematicOut{to{opacity:0;visibility:hidden}}.cinematic-nav{opacity:0;transform:translateY(-100%);animation:navDrop 1s cubic-bezier(.16,1,.3,1) 3s forwards}@keyframes navDrop{to{opacity:1;transform:translateY(0)}}.cinematic-item{opacity:0;transform:translateY(30px);filter:blur(6px)}.cinematic-item:nth-child(1){animation:textEmerge 1.2s cubic-bezier(.16,1,.3,1) 3.2s forwards}.cinematic-item:nth-child(2){animation:textEmerge 1.2s cubic-bezier(.16,1,.3,1) 3.4s forwards}.cinematic-item:nth-child(3){animation:textEmerge 1.2s cubic-bezier(.16,1,.3,1) 3.6s forwards}.cinematic-item:nth-child(4){animation:textEmerge 1.2s cubic-bezier(.16,1,.3,1) 3.8s forwards}@keyframes textEmerge{to{opacity:1;transform:translateY(0);filter:blur(0)}}.cinematic-visual{opacity:0;transform:scale(.9) translateZ(-100px);animation:visualDollyIn 1.5s cubic-bezier(.16,1,.3,1) 3.5s forwards}@keyframes visualDollyIn{to{opacity:1;transform:scale(1) translateZ(0)}}.particles{position:absolute;top:-100px;right:-100px;bottom:-100px;left:-100px;pointer-events:none;z-index:0}.particles div{position:absolute;border-radius:50%;background:#b9c7cf99;box-shadow:0 0 10px #b9c7cfcc;animation:floatParticle 8s infinite alternate ease-in-out}.particles .p1{width:4px;height:4px;top:10%;left:20%;animation-delay:0s}.particles .p2{width:6px;height:6px;top:80%;left:15%;animation-delay:1s;background:#ed877199}.particles .p3{width:3px;height:3px;top:40%;right:10%;animation-delay:2s}.particles .p4{width:5px;height:5px;bottom:10%;right:25%;animation-delay:.5s;background:#22596d99}.particles .p5{width:4px;height:4px;top:-5%;left:60%;animation-delay:3s}@keyframes floatParticle{0%{transform:translateY(0) translate(0) scale(1);opacity:.4}to{transform:translateY(-40px) translate(20px) scale(1.5);opacity:1}}.wa-panel-head p{margin:4px 0 0;color:var(--secondary-text);line-height:1.3}.wa-close{border:0;background:transparent;color:#fff;font-size:2.1rem;cursor:pointer;line-height:1}.wa-panel-body{padding:24px}.wa-intro{margin:0 0 18px;color:var(--secondary-text)}.wa-options{display:grid;gap:14px}.wa-option{min-height:56px;border-radius:12px;border:1px solid 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h3{font-size:1.35rem}}.cinematic-scroll-section{position:relative;height:400vh;background:var(--dark-gradient)}.scroll-sticky-container{position:sticky;top:0;height:100vh;width:100%;display:flex;align-items:center;justify-content:center;overflow:hidden}.scroll-canvas-wrapper{width:100%;max-width:1200px;height:80vh;position:relative;z-index:1;display:flex;align-items:center;justify-content:center}.blend-screen{mix-blend-mode:screen;filter:contrast(1.3) brightness(.85);width:100%;height:100%;object-fit:contain;opacity:.95;transform:scale(1.05);transition:transform .1s ease-out}.scroll-text-overlay{position:absolute;bottom:8%;left:0;width:100%;text-align:center;z-index:2;pointer-events:none}.scroll-text-block{background:#0f1418bf;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);display:inline-block;padding:20px 40px;border-radius:999px;border:1px solid rgba(255,255,255,.08);box-shadow:0 20px 40px #0006}.scroll-text-block h2{font-size:1.6rem;margin-bottom:6px;color:var(--accent-coral-light)}.scroll-text-block p{margin:0;font-size:1.05rem;color:var(--light-text)}.app-bg-video{position:fixed;top:0;left:0;width:100vw;height:100vh;object-fit:cover;z-index:-2;pointer-events:none}.video-overlay{background:radial-gradient(circle at center,#0f14188c,#0f1418d9);z-index:-1;position:fixed;top:0;left:0;width:100vw;height:100vh;pointer-events:none}