:root{--primary-color:#1a1a2e;--secondary-color:#16213e;--accent-color:#e94560;--gold-color:#f4d160;--text-color:#eaeaea;--text-muted:#a0a0a0;--success-color:#00d26a;--danger-color:#ff4757;--card-bg:#0f0f23;--border-color:#2a2a4a;--filter-chip-bg:#253560;--filter-chip-border:#4a5a8a;--gradient-primary:linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);--gradient-accent:linear-gradient(135deg, #e94560 0%, #ff6b6b 100%);--shadow-lg:0 25px 50px -12px rgba(0, 0, 0, 0.5);--shadow-glow:0 0 40px rgba(233, 69, 96, 0.3);--header-bg:rgba(26, 26, 46, 0.95);--header-bg-solid:rgba(26, 26, 46, 0.98);--overlay-bg:rgba(0, 0, 0, 0.3);--chat-user-bg:rgba(233, 69, 96, 0.2)}[data-theme=light]{--primary-color:#f0f2f5;--secondary-color:#e4e8ee;--text-color:#1a1a2e;--text-muted:#5a6072;--card-bg:#ffffff;--border-color:#d1d5db;--filter-chip-bg:#e4e8ee;--filter-chip-border:#c5cad3;--gradient-primary:linear-gradient(135deg, #f0f2f5 0%, #e4e8ee 100%);--shadow-lg:0 25px 50px -12px rgba(0, 0, 0, 0.15);--shadow-glow:0 0 40px rgba(233, 69, 96, 0.15);--header-bg:rgba(240, 242, 245, 0.95);--header-bg-solid:rgba(240, 242, 245, 0.98);--overlay-bg:rgba(0, 0, 0, 0.08);--chat-user-bg:rgba(233, 69, 96, 0.1)}[data-theme=light] .site-header{box-shadow:0 2px 20px rgba(0,0,0,.08)}[data-theme=light] .logo-text{-webkit-text-fill-color:unset;background:0 0;color:var(--accent-color)}[data-theme=light] .hero-bg{background:radial-gradient(circle at 20% 80%,rgba(233,69,96,.08) 0,transparent 50%),radial-gradient(circle at 80% 20%,rgba(244,209,96,.06) 0,transparent 50%),var(--gradient-primary)}[data-theme=light] .loader{background:#f0f2f5}[data-theme=light] .social-link{background:var(--primary-color)}[data-theme=light] .cta-section{color:#fff}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:Tajawal,'Segoe 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0;background:var(--header-bg);backdrop-filter:blur(20px);border-bottom:1px solid var(--border-color);transition:all .3s ease}.site-header.scrolled{padding:10px 0;background:var(--header-bg-solid)}.header-container{max-width:1400px;margin:0 auto;padding:0 30px;display:flex;align-items:center;justify-content:space-between}.site-logo{display:flex;align-items:center;gap:15px}.logo-icon{width:50px;height:50px;background:var(--gradient-accent);border-radius:15px;display:flex;align-items:center;justify-content:center;font-size:1.5rem}.logo-text{font-size:1.8rem;font-weight:800;background:linear-gradient(135deg,var(--accent-color),var(--gold-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.main-nav ul{display:flex;gap:30px;list-style:none;margin:0;padding:0}.main-nav li{white-space:nowrap}.main-nav a{color:var(--text-color);font-weight:500;position:relative;padding:5px 0;white-space:nowrap}.main-nav a::after{content:'';position:absolute;bottom:0;right:0;width:0;height:2px;background:var(--accent-color);transition:width .3s ease}.main-nav a.active::after,.main-nav a:hover::after{width:100%}.header-actions{display:flex;align-items:center;gap:20px}.user-points{display:flex;align-items:center;gap:8px;padding:10px 20px;background:rgba(244,209,96,.1);border:1px solid var(--gold-color);border-radius:50px;color:var(--gold-color);font-weight:600}.user-profile-link img{width:32px;height:32px;border-radius:50%;border:2px solid var(--accent-color);transition:transform .2s}.user-profile-link:hover img{transform:scale(1.1)}.hero-section{min-height:100vh;display:flex;align-items:center;justify-content:center;position:relative;padding:120px 30px 80px;overflow:hidden}.hero-bg{position:absolute;inset:0;background:radial-gradient(circle at 20% 80%,rgba(233,69,96,.15) 0,transparent 50%),radial-gradient(circle at 80% 20%,rgba(244,209,96,.1) 0,transparent 50%),var(--gradient-primary)}.hero-particles{position:absolute;inset:0;overflow:hidden}.particle{position:absolute;width:4px;height:4px;background:var(--accent-color);border-radius:50%;animation:float 15s infinite;opacity:.5}@keyframes float{0%,100%{transform:translateY(100vh) rotate(0);opacity:0}10%{opacity:.5}90%{opacity:.5}100%{transform:translateY(-100vh) rotate(720deg);opacity:0}}.hero-content{position:relative;z-index:1;text-align:center;max-width:900px}.hero-badge{display:inline-flex;align-items:center;gap:10px;padding:10px 25px;background:rgba(233,69,96,.1);border:1px solid var(--accent-color);border-radius:50px;color:var(--accent-color);font-size:.95rem;margin-bottom:30px;animation:pulse 2s infinite}@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(233,69,96,.4)}50%{box-shadow:0 0 0 15px rgba(233,69,96,0)}}.hero-title{font-size:clamp(2.5rem, 6vw, 4.5rem);font-weight:800;line-height:1.2;margin-bottom:25px}.hero-title span{background:linear-gradient(135deg,var(--accent-color),var(--gold-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-description{font-size:1.3rem;color:var(--text-muted);max-width:700px;margin:0 auto 40px}.hero-buttons{display:flex;gap:20px;justify-content:center;flex-wrap:wrap}.hero-stats{display:flex;justify-content:center;gap:60px;margin-top:60px;padding-top:40px;border-top:1px solid var(--border-color)}.stat-item{text-align:center}.stat-number{font-size:2.5rem;font-weight:800;color:var(--accent-color);display:block}.stat-label{color:var(--text-muted);font-size:.95rem}.cases-section{padding:100px 30px;background:var(--secondary-color)}.section-container{max-width:1400px;margin:0 auto}.section-header{text-align:center;margin-bottom:60px}.section-title{font-size:2.5rem;font-weight:800;margin-bottom:15px}.section-subtitle{color:var(--text-muted);font-size:1.1rem}.cases-filters{display:flex;justify-content:center;gap:15px;margin-bottom:50px;flex-wrap:wrap}.filter-btn{padding:12px 30px;background:var(--card-bg);border:1px solid var(--border-color);border-radius:50px;color:var(--text-color);font-family:inherit;font-size:1rem;cursor:pointer;transition:all .3s ease}.filter-btn.active,.filter-btn:hover{background:var(--accent-color);border-color:var(--accent-color)}.cases-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:30px}.case-card{background:var(--card-bg);border-radius:20px;overflow:hidden;border:1px solid var(--border-color);transition:all .4s ease;cursor:pointer}.case-card:hover{transform:translateY(-10px);box-shadow:var(--shadow-glow);border-color:var(--accent-color)}.case-image{position:relative;height:200px;overflow:hidden}.case-image img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}.case-card:hover .case-image img{transform:scale(1.1)}.case-difficulty{position:absolute;top:15px;right:15px;padding:8px 20px;border-radius:50px;font-size:.85rem;font-weight:600}.difficulty-easy{background:rgba(0,210,106,.2);color:var(--success-color);border:1px solid var(--success-color)}.difficulty-medium{background:rgba(244,209,96,.2);color:var(--gold-color);border:1px solid var(--gold-color)}.difficulty-hard{background:rgba(233,69,96,.2);color:var(--accent-color);border:1px solid var(--accent-color)}.case-category{position:absolute;bottom:15px;left:15px;padding:6px 15px;background:rgba(0,0,0,.7);border-radius:20px;font-size:.8rem;color:var(--text-muted)}.case-content{padding:25px}.case-title{font-size:1.3rem;font-weight:700;margin-bottom:10px;color:var(--text-color)}.case-excerpt{color:var(--text-muted);font-size:.95rem;line-height:1.7;margin-bottom:20px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.case-meta{display:flex;justify-content:space-between;align-items:center;padding-top:20px;border-top:1px solid var(--border-color)}.case-stats{display:flex;gap:20px}.case-stat{display:flex;align-items:center;gap:6px;color:var(--text-muted);font-size:.9rem}.case-stat i{color:var(--accent-color)}.case-play-btn{width:45px;height:45px;background:var(--gradient-accent);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;transition:all .3s ease}.case-card:hover .case-play-btn{transform:scale(1.1)}.case-page{min-height:100vh;padding:120px 30px 80px}.case-container{max-width:1200px;margin:0 auto}.case-hero{text-align:center;margin-bottom:50px}.case-hero .case-category{position:static;display:inline-block;margin-bottom:20px;background:rgba(233,69,96,.1);border:1px solid var(--accent-color)}.case-hero-title{font-size:2.5rem;font-weight:800;margin-bottom:20px}.case-story{background:var(--card-bg);border-radius:20px;padding:40px;margin-bottom:40px;border:1px solid var(--border-color)}.story-header{display:flex;align-items:center;gap:15px;margin-bottom:25px;padding-bottom:20px;border-bottom:1px solid var(--border-color)}.story-icon{width:50px;height:50px;background:var(--gradient-accent);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.5rem}.story-title{font-size:1.3rem;font-weight:700}.story-content{font-size:1.1rem;line-height:2;color:var(--text-muted)}.story-content p{margin-bottom:15px}.suspects-section{margin-bottom:40px}.suspects-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px;margin-top:30px}.suspect-card{background:var(--card-bg);border-radius:20px;padding:30px;border:2px solid var(--border-color);cursor:pointer;transition:all .3s ease;position:relative}.suspect-card:hover{border-color:var(--accent-color);transform:translateY(-5px)}.suspect-card.selected{border-color:var(--gold-color);background:rgba(244,209,96,.05)}.suspect-avatar{width:80px;height:80px;border-radius:50%;background:var(--gradient-accent);display:flex;align-items:center;justify-content:center;font-size:2rem;margin:0 auto 20px}.suspect-name{font-size:1.2rem;font-weight:700;text-align:center;margin-bottom:10px}.suspect-role{text-align:center;color:var(--text-muted);font-size:.9rem;margin-bottom:15px}.suspect-details{font-size:.95rem;color:var(--text-muted);line-height:1.7}.suspect-alibi{margin-top:15px;padding-top:15px;border-top:1px solid var(--border-color)}.suspect-alibi strong{color:var(--accent-color)}.evidence-section{margin-bottom:40px}.evidence-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px;margin-top:30px}.evidence-card{background:var(--card-bg);border-radius:15px;padding:25px;border:1px solid var(--border-color);transition:all .3s ease}.evidence-card:hover{border-color:var(--accent-color)}.evidence-icon{width:50px;height:50px;background:rgba(233,69,96,.1);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:15px}.evidence-title{font-size:1.1rem;font-weight:600;margin-bottom:10px}.evidence-description{color:var(--text-muted);font-size:.9rem;line-height:1.6}.investigation-section{background:var(--card-bg);border-radius:20px;padding:40px;margin-bottom:40px;border:1px solid var(--border-color)}.investigation-chat{max-height:400px;overflow-y:auto;margin-bottom:30px;padding:20px;background:rgba(0,0,0,.3);border-radius:15px}.chat-message{display:flex;gap:15px;margin-bottom:20px}.chat-message.user{flex-direction:row-reverse}.chat-avatar{width:40px;height:40px;border-radius:50%;background:var(--gradient-accent);display:flex;align-items:center;justify-content:center;flex-shrink:0}.chat-message.user .chat-avatar{background:var(--gold-color);color:var(--primary-color)}.chat-bubble{max-width:70%;padding:15px 20px;background:var(--secondary-color);border-radius:15px;line-height:1.6}.chat-message.user .chat-bubble{background:rgba(233,69,96,.2)}.investigation-input{display:flex;gap:15px}.investigation-input input{flex:1;padding:18px 25px;background:var(--secondary-color);border:1px solid var(--border-color);border-radius:50px;color:var(--text-color);font-family:inherit;font-size:1rem}.investigation-input input:focus{outline:0;border-color:var(--accent-color)}.investigation-input button{padding:18px 35px}.accusation-section{background:linear-gradient(135deg,rgba(233,69,96,.1) 0,rgba(244,209,96,.1) 100%);border-radius:20px;padding:50px;text-align:center;border:2px solid var(--accent-color)}.accusation-title{font-size:1.8rem;font-weight:800;margin-bottom:15px}.accusation-subtitle{color:var(--text-muted);margin-bottom:30px}.accusation-btn{font-size:1.2rem;padding:20px 50px}.result-modal{position:fixed;inset:0;background:rgba(0,0,0,.9);display:none;align-items:center;justify-content:center;z-index:2000;padding:30px}.result-modal.active{display:flex}.result-content{background:var(--card-bg);border-radius:30px;padding:60px;text-align:center;max-width:600px;width:100%;border:2px solid var(--border-color);animation:slideUp .5s ease}@keyframes slideUp{from{opacity:0;transform:translateY(50px)}to{opacity:1;transform:translateY(0)}}.result-icon{width:100px;height:100px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:3rem;margin:0 auto 30px}.result-icon.success{background:rgba(0,210,106,.2);color:var(--success-color);border:3px solid var(--success-color)}.result-icon.fail{background:rgba(255,71,87,.2);color:var(--danger-color);border:3px solid var(--danger-color)}.result-title{font-size:2rem;font-weight:800;margin-bottom:15px}.result-message{color:var(--text-muted);font-size:1.1rem;line-height:1.8;margin-bottom:30px}.result-points{display:inline-flex;align-items:center;gap:10px;padding:15px 30px;background:rgba(244,209,96,.1);border:1px solid var(--gold-color);border-radius:50px;color:var(--gold-color);font-size:1.2rem;font-weight:700;margin-bottom:30px}.result-actions{display:flex;gap:15px;justify-content:center}.categories-section{padding:120px 30px 80px}.categories-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:30px}.category-card{background:var(--card-bg);border-radius:20px;padding:40px;text-align:center;border:1px solid var(--border-color);transition:all .4s ease}.category-card:hover{border-color:var(--accent-color);transform:translateY(-10px);box-shadow:var(--shadow-glow)}.category-icon{width:80px;height:80px;background:var(--gradient-accent);border-radius:20px;display:flex;align-items:center;justify-content:center;font-size:2.5rem;margin:0 auto 25px}.category-title{font-size:1.4rem;font-weight:700;margin-bottom:10px}.category-count{color:var(--text-muted);font-size:.95rem}.leaderboard-section{padding:120px 30px 80px}.leaderboard-table{background:var(--card-bg);border-radius:20px;overflow:hidden;border:1px solid var(--border-color)}.leaderboard-header{display:grid;grid-template-columns:80px 1fr 150px 150px;gap:20px;padding:20px 30px;background:var(--secondary-color);font-weight:600;color:var(--text-muted)}.leaderboard-row{display:grid;grid-template-columns:80px 1fr 150px 150px;gap:20px;padding:20px 30px;border-bottom:1px solid var(--border-color);align-items:center;transition:background .3s ease}.leaderboard-row:hover{background:rgba(233,69,96,.05)}.leaderboard-rank{font-size:1.5rem;font-weight:800}.leaderboard-rank.gold{color:gold}.leaderboard-rank.silver{color:silver}.leaderboard-rank.bronze{color:#cd7f32}.leaderboard-user{display:flex;align-items:center;gap:15px}.leaderboard-avatar{width:50px;height:50px;border-radius:50%;background:var(--gradient-accent);display:flex;align-items:center;justify-content:center;font-weight:700;overflow:hidden}.leaderboard-avatar img{width:100%;height:100%;border-radius:50%;object-fit:cover}.leaderboard-name{font-weight:600}.leaderboard-points{color:var(--gold-color);font-weight:700}.leaderboard-solved{color:var(--text-muted)}.site-footer{background:var(--card-bg);padding:80px 30px 30px;border-top:1px solid var(--border-color)}.footer-container{max-width:1400px;margin:0 auto}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:50px;margin-bottom:50px}.footer-brand{max-width:350px}.footer-logo{display:flex;align-items:center;gap:15px;margin-bottom:20px}.footer-description{color:var(--text-muted);line-height:1.8;margin-bottom:25px}.footer-social{display:flex;gap:15px}.social-link{width:45px;height:45px;background:var(--secondary-color);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--text-muted);transition:all .3s ease}.social-link:hover{background:var(--accent-color);color:#fff}.footer-title{font-size:1.2rem;font-weight:700;margin-bottom:25px}.footer-links{list-style:none}.footer-links li{margin-bottom:12px}.footer-links a{color:var(--text-muted)}.footer-links a:hover{color:var(--accent-color)}.footer-bottom{padding-top:30px;border-top:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center;color:var(--text-muted);font-size:.9rem}.loader{position:fixed;inset:0;background:var(--primary-color);display:flex;align-items:center;justify-content:center;z-index:3000;transition:opacity .5s ease;animation:qadiyahLoaderFallbackHide 0s linear 6s forwards}.loader.hidden{opacity:0;pointer-events:none;visibility:hidden;animation:none}@keyframes qadiyahLoaderFallbackHide{to{opacity:0;visibility:hidden;pointer-events:none}}.loader-content{text-align:center}.loader-icon{width:80px;height:80px;border:4px solid var(--border-color);border-top-color:var(--accent-color);border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 20px}@keyframes spin{to{transform:rotate(360deg)}}.loader-text{color:var(--text-muted);font-size:1.1rem}.mobile-menu-toggle{display:none;flex-direction:column;gap:5px;background:0 0;border:none;cursor:pointer;padding:8px;z-index:1100}.mobile-menu-toggle span{display:block;width:24px;height:2px;background:var(--text-color);border-radius:2px;transition:all .3s}.mobile-menu-toggle.active span:first-child{transform:rotate(45deg) translate(5px,5px)}.mobile-menu-toggle.active span:nth-child(2){opacity:0}.mobile-menu-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}.theme-toggle-btn{width:42px;height:42px;border-radius:50%;border:1px solid var(--border-color);background:var(--card-bg);color:var(--gold-color);font-size:1.1rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s}.theme-toggle-btn:hover{border-color:var(--gold-color);transform:rotate(30deg)}.share-buttons{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.share-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border-radius:50px;border:none;font-family:inherit;font-size:.9rem;font-weight:600;cursor:pointer;color:#fff;transition:all .3s;text-decoration:none}.share-btn:hover{transform:translateY(-2px);color:#fff}.share-btn.share-twitter{background:#1da1f2}.share-btn.share-whatsapp{background:#25d366}.share-btn.share-facebook{background:#1877f2}.share-btn.share-telegram{background:#08c}.share-btn.share-copy{background:var(--card-bg);border:1px solid var(--border-color);color:var(--text-color)}.share-btn.share-copy:hover{color:var(--accent-color);border-color:var(--accent-color)}.share-section{background:var(--card-bg);border-radius:20px;padding:30px;margin-top:30px;border:1px solid var(--border-color);text-align:center}.share-section h3{margin-bottom:5px}.share-section p{color:var(--text-muted);margin-bottom:16px;font-size:.95rem}.notification-bar{position:fixed;bottom:24px;right:24px;z-index:9000;display:flex;flex-direction:column;gap:10px;pointer-events:none}.notif-toast{display:flex;align-items:center;gap:12px;background:var(--card-bg);border:1px solid var(--accent-color);border-radius:16px;padding:16px 20px;box-shadow:0 10px 40px rgba(0,0,0,.3);pointer-events:auto;animation:slideInRight .4s ease;max-width:360px}@keyframes slideInRight{from{transform:translateX(120%);opacity:0}to{transform:translateX(0);opacity:1}}.notif-toast-icon{font-size:1.8rem;flex-shrink:0}.notif-toast-body h4{font-size:.95rem;margin-bottom:2px}.notif-toast-body p{color:var(--text-muted);font-size:.85rem}.notif-toast-close{background:0 0;border:none;color:var(--text-muted);cursor:pointer;padding:4px;margin-right:auto;font-size:1rem}.pwa-install-banner{position:fixed;bottom:0;left:0;right:0;background:var(--card-bg);border-top:1px solid var(--border-color);padding:16px 24px;display:flex;align-items:center;gap:16px;z-index:8000;box-shadow:0 -4px 30px rgba(0,0,0,.2);transform:translateY(100%);transition:transform .4s ease}.pwa-install-banner.visible{transform:translateY(0)}.pwa-install-icon{font-size:2.2rem;flex-shrink:0}.pwa-install-text{flex:1}.pwa-install-text h4{font-size:1rem;margin-bottom:2px}.pwa-install-text p{color:var(--text-muted);font-size:.85rem}.pwa-install-actions{display:flex;gap:10px;flex-shrink:0}.pwa-install-actions .btn{padding:10px 24px;font-size:.9rem}.pwa-dismiss-btn{background:0 0;border:none;color:var(--text-muted);cursor:pointer;font-size:1.2rem;padding:4px}@media (max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr}.leaderboard-header,.leaderboard-row{grid-template-columns:60px 1fr 100px}.leaderboard-solved{display:none}}@media 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