:root{--spark-orange: #F5A623;--spark-gold: #FFD700;--spark-dark-orange: #E8941A;--spark-light-orange: #FFF3E0;--dark-bg: #0a0a0f;--dark-surface: #12121a;--dark-card: #1a1a2e;--dark-border: #2a2a3e;--text-primary: #ffffff;--text-secondary: #a0a0b8;--text-muted: #6b6b80;--gradient-primary: linear-gradient(135deg, #F5A623 0%, #FFD700 100%);--gradient-dark: linear-gradient(135deg, #1a1a2e 0%, #0a0a0f 100%);--gradient-glow: radial-gradient(circle at 50% 50%, rgba(245, 166, 35, .15) 0%, transparent 70%);--gradient-hero: linear-gradient(180deg, #0a0a0f 0%, #12121a 50%, #0a0a0f 100%);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .3);--shadow-md: 0 4px 20px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 40px rgba(0, 0, 0, .5);--shadow-glow: 0 0 30px rgba(245, 166, 35, .3);--shadow-glow-sm: 0 0 15px rgba(245, 166, 35, .2);--font-family: "Tajawal", sans-serif;--container-max: 1200px;--section-padding: 80px 0;--transition-fast: .2s ease;--transition-normal: .3s ease;--transition-slow: .5s ease;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 20px;--radius-xl: 28px}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%}body{font-family:var(--font-family);background-color:var(--dark-bg);color:var(--text-primary);line-height:1.7;direction:rtl;overflow-x:hidden;margin:0;padding:0;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}a{text-decoration:none;color:inherit}ul,ol{list-style:none}img{max-width:100%;display:block}button{font-family:var(--font-family);cursor:pointer;border:none;outline:none}input,textarea,select{font-family:var(--font-family);outline:none}.container{max-width:var(--container-max);margin:0 auto;padding:0 24px}main{flex:1;display:flex;flex-direction:column;min-height:100%}.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;padding:16px 0;transition:var(--transition-normal);background:transparent}.navbar.scrolled{background:#0a0a0ff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--dark-border);padding:10px 0}.navbar .container{display:flex;align-items:center;justify-content:space-between}.navbar-brand{display:flex;align-items:center;gap:12px;font-size:1.6rem;font-weight:800}.navbar-brand .spark-logo-text{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.navbar-brand .spark-ai-badge{font-size:.65rem;background:var(--gradient-primary);color:var(--dark-bg);padding:2px 8px;border-radius:6px;font-weight:700;letter-spacing:1px}.nav-links{display:flex;align-items:center;gap:8px}.nav-links a{padding:8px 18px;border-radius:var(--radius-sm);font-weight:500;font-size:.95rem;color:var(--text-secondary);transition:var(--transition-fast);position:relative}.nav-links a:hover,.nav-links a.active{color:var(--spark-orange)}.nav-links .btn-nav-primary{background:var(--gradient-primary);color:var(--dark-bg);font-weight:700;padding:10px 24px;border-radius:var(--radius-xl)}.nav-links .btn-nav-primary:hover{box-shadow:var(--shadow-glow);transform:translateY(-2px)}.mobile-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:5px}.mobile-toggle span{width:28px;height:2.5px;background:var(--text-primary);border-radius:3px;transition:var(--transition-fast)}.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;position:relative;overflow:hidden;background:var(--gradient-hero)}.hero:before{content:"";position:absolute;top:-50%;right:-20%;width:600px;height:600px;background:radial-gradient(circle,rgba(245,166,35,.08) 0%,transparent 70%);animation:float 8s ease-in-out infinite}.hero:after{content:"";position:absolute;bottom:-30%;left:-10%;width:500px;height:500px;background:radial-gradient(circle,rgba(255,215,0,.06) 0%,transparent 70%);animation:float 10s ease-in-out infinite reverse}@keyframes float{0%,to{transform:translate(0)}50%{transform:translate(30px,-30px)}}.hero-content{position:relative;z-index:2;max-width:800px;padding:0 24px}.hero-spark-icon{font-size:4rem;margin-bottom:20px;display:inline-block;animation:pulse-glow 3s ease-in-out infinite}@keyframes pulse-glow{0%,to{filter:drop-shadow(0 0 10px rgba(245,166,35,.4))}50%{filter:drop-shadow(0 0 30px rgba(245,166,35,.8))}}.hero h1{font-size:3.5rem;font-weight:900;line-height:1.2;margin-bottom:10px}.hero h1 .highlight{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero .tagline{font-size:1.2rem;color:var(--text-secondary);margin-bottom:12px;letter-spacing:3px;text-transform:uppercase;font-weight:300}.hero p.hero-desc{font-size:1.15rem;color:var(--text-secondary);line-height:1.8;margin-bottom:40px;max-width:600px;margin-left:auto;margin-right:auto}.hero-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 36px;border-radius:var(--radius-xl);font-size:1rem;font-weight:700;transition:all var(--transition-normal);border:none;cursor:pointer}.btn-primary{background:var(--gradient-primary);color:var(--dark-bg);box-shadow:var(--shadow-glow-sm)}.btn-primary:hover{transform:translateY(-3px);box-shadow:var(--shadow-glow)}.btn-secondary{background:transparent;color:var(--spark-orange);border:2px solid var(--spark-orange)}.btn-secondary:hover{background:#f5a6231a;transform:translateY(-3px)}.btn-sm{padding:10px 24px;font-size:.9rem}.btn-danger{background:linear-gradient(135deg,#e74c3c,#c0392b);color:#fff}.btn-danger:hover{transform:translateY(-2px);box-shadow:0 0 20px #e74c3c4d}.stats-section{padding:60px 0;position:relative}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.stat-card{background:var(--dark-card);border:1px solid var(--dark-border);border-radius:var(--radius-lg);padding:32px 24px;text-align:center;transition:var(--transition-normal);position:relative;overflow:hidden}.stat-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient-primary);transform:scaleX(0);transition:var(--transition-normal)}.stat-card:hover:before{transform:scaleX(1)}.stat-card:hover{transform:translateY(-5px);border-color:#f5a6234d;box-shadow:var(--shadow-glow-sm)}.stat-icon{font-size:2.5rem;margin-bottom:12px}.stat-number{font-size:2.5rem;font-weight:900;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.stat-label{color:var(--text-secondary);font-size:.95rem;margin-top:4px}.section-header{text-align:center;margin-bottom:50px}.section-header h2{font-size:2.5rem;font-weight:800;margin-bottom:12px}.section-header h2 .highlight{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.section-header p{color:var(--text-secondary);font-size:1.1rem;max-width:600px;margin:0 auto}.courses-section{padding:var(--section-padding)}.courses-filter{display:flex;justify-content:center;gap:10px;margin-bottom:40px;flex-wrap:wrap}.filter-btn{padding:10px 24px;border-radius:var(--radius-xl);background:var(--dark-card);color:var(--text-secondary);border:1px solid var(--dark-border);font-size:.9rem;font-weight:500;transition:var(--transition-fast);cursor:pointer}.filter-btn:hover,.filter-btn.active{background:var(--gradient-primary);color:var(--dark-bg);border-color:transparent;font-weight:700}.courses-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:28px}.course-card{background:var(--dark-card);border:1px solid var(--dark-border);border-radius:var(--radius-lg);overflow:hidden;transition:all var(--transition-normal);cursor:pointer;position:relative}.course-card:hover{transform:translateY(-8px);border-color:#f5a62366;box-shadow:var(--shadow-glow-sm)}.course-card-image{width:100%;height:190px;background:var(--gradient-dark);display:flex;align-items:center;justify-content:center;font-size:4rem;position:relative;overflow:hidden}.course-card-image:after{content:"";position:absolute;bottom:0;left:0;right:0;height:60px;background:linear-gradient(transparent,var(--dark-card))}.course-card-category{position:absolute;top:14px;right:14px;background:#f5a623e6;color:var(--dark-bg);padding:4px 14px;border-radius:var(--radius-xl);font-size:.78rem;font-weight:700}.course-card-body{padding:22px}.course-card-body h3{font-size:1.2rem;font-weight:700;margin-bottom:8px;line-height:1.4}.course-card-body p{color:var(--text-secondary);font-size:.9rem;line-height:1.6;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.course-card-meta{display:flex;justify-content:space-between;align-items:center;padding-top:14px;border-top:1px solid var(--dark-border)}.course-card-meta span{font-size:.85rem;color:var(--text-muted);display:flex;align-items:center;gap:6px}.auth-page{min-height:100%;padding:60px 20px 30px;padding-top:max(60px,env(safe-area-inset-top,60px));padding-bottom:max(30px,env(safe-area-inset-bottom,30px));padding-right:max(20px,env(safe-area-inset-right,20px));padding-left:max(20px,env(safe-area-inset-left,20px));display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;background:var(--gradient-hero);overflow-x:hidden;box-sizing:border-box}.auth-page:before{content:"";position:absolute;top:20%;left:50%;transform:translate(-50%);width:500px;height:500px;background:var(--gradient-glow);pointer-events:none}.auth-card{background:var(--dark-card);border:1px solid var(--dark-border);border-radius:var(--radius-lg);padding:32px 20px;width:100%;max-width:420px;position:relative;z-index:2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-sizing:border-box;margin-top:40px}.auth-card h2{font-size:2rem;font-weight:800;text-align:center;margin-bottom:8px}.auth-card .auth-subtitle{text-align:center;color:var(--text-secondary);margin-bottom:32px;font-size:.95rem}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-size:.9rem;font-weight:500;color:var(--text-secondary)}.form-group input,.form-group select,.form-group textarea{width:100%;padding:14px 18px;background:var(--dark-surface);border:1px solid var(--dark-border);border-radius:var(--radius-md);color:var(--text-primary);font-size:1rem;transition:var(--transition-fast)}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--spark-orange);box-shadow:0 0 0 3px #f5a62326}.form-group input::placeholder{color:var(--text-muted)}.auth-card .btn{width:100%;margin-top:8px}.auth-link{text-align:center;margin-top:20px;color:var(--text-secondary);font-size:.9rem}.auth-link a{color:var(--spark-orange);font-weight:600}.auth-link a:hover{text-decoration:underline}.form-error{color:#e74c3c;font-size:.85rem;margin-top:6px}.form-success{background:#2ecc711a;border:1px solid rgba(46,204,113,.3);color:#2ecc71;padding:12px 16px;border-radius:var(--radius-sm);margin-bottom:20px;text-align:center}.course-detail-page{padding:120px 0 60px;min-height:100vh}.course-detail-header{display:flex;gap:40px;margin-bottom:50px;align-items:flex-start}.course-detail-image{flex:0 0 400px;height:280px;background:var(--dark-card);border:1px solid var(--dark-border);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;font-size:6rem}.course-detail-info{flex:1}.course-detail-info .category-badge{display:inline-block;background:var(--gradient-primary);color:var(--dark-bg);padding:6px 18px;border-radius:var(--radius-xl);font-size:.85rem;font-weight:700;margin-bottom:16px}.course-detail-info h1{font-size:2.5rem;font-weight:800;margin-bottom:16px;line-height:1.3}.course-detail-info p{color:var(--text-secondary);font-size:1.05rem;line-height:1.8;margin-bottom:24px}.course-meta-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:28px}.course-meta-item{background:var(--dark-surface);border:1px solid var(--dark-border);border-radius:var(--radius-md);padding:16px;text-align:center}.course-meta-item .meta-icon{font-size:1.5rem;margin-bottom:6px}.course-meta-item .meta-label{font-size:.8rem;color:var(--text-muted)}.course-meta-item .meta-value{font-size:1rem;font-weight:700;color:var(--spark-orange)}.course-topics{margin-top:40px}.course-topics h2{font-size:1.8rem;font-weight:700;margin-bottom:24px}.topics-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}.topic-item{background:var(--dark-card);border:1px solid var(--dark-border);border-radius:var(--radius-md);padding:16px 20px;display:flex;align-items:center;gap:14px;transition:var(--transition-fast)}.topic-item:hover{border-color:#f5a6234d;background:#f5a6230d}.topic-number{width:36px;height:36px;background:var(--gradient-primary);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--dark-bg);font-size:.9rem;flex-shrink:0}.topic-name{font-weight:500;font-size:.95rem}.dashboard-page{padding:120px 0 60px;min-height:100vh}.dashboard-welcome{margin-bottom:40px}.dashboard-welcome h1{font-size:2.2rem;font-weight:800;margin-bottom:8px}.dashboard-welcome h1 .highlight{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.dashboard-welcome p{color:var(--text-secondary);font-size:1.05rem}.dashboard-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:50px}.dash-stat{background:var(--dark-card);border:1px solid var(--dark-border);border-radius:var(--radius-lg);padding:28px;text-align:center;transition:var(--transition-normal)}.dash-stat:hover{border-color:#f5a6234d}.dash-stat .stat-icon{font-size:2rem;margin-bottom:10px}.dash-stat .stat-val{font-size:2rem;font-weight:900;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.dash-stat .stat-label{color:var(--text-secondary);font-size:.9rem}.dashboard-section{margin-bottom:50px}.dashboard-section h2{font-size:1.6rem;font-weight:700;margin-bottom:24px;display:flex;align-items:center;gap:10px}.enrolled-courses-list{display:grid;gap:16px}.enrolled-course-item{background:var(--dark-card);border:1px solid var(--dark-border);border-radius:var(--radius-lg);padding:24px;display:flex;align-items:center;gap:20px;transition:var(--transition-normal)}.enrolled-course-item:hover{border-color:#f5a6234d}.enrolled-course-icon{font-size:2.5rem;flex-shrink:0}.enrolled-course-info{flex:1}.enrolled-course-info h3{font-size:1.15rem;font-weight:700;margin-bottom:4px}.enrolled-course-info p{color:var(--text-secondary);font-size:.88rem}.enrolled-course-status{display:flex;flex-direction:column;align-items:center;gap:8px}.status-badge{padding:6px 16px;border-radius:var(--radius-xl);font-size:.82rem;font-weight:700}.status-badge.in-progress{background:#f5a62326;color:var(--spark-orange);border:1px solid rgba(245,166,35,.3)}.status-badge.completed{background:#2ecc7126;color:#2ecc71;border:1px solid rgba(46,204,113,.3)}.btn-complete{padding:6px 16px;border-radius:var(--radius-xl);font-size:.82rem;font-weight:600;background:transparent;color:var(--spark-orange);border:1px solid var(--spark-orange);cursor:pointer;transition:var(--transition-fast)}.btn-complete:hover{background:var(--spark-orange);color:var(--dark-bg)}.empty-state{text-align:center;padding:60px 24px;background:var(--dark-card);border:1px dashed var(--dark-border);border-radius:var(--radius-lg)}.empty-state .empty-icon{font-size:3rem;margin-bottom:16px}.empty-state p{color:var(--text-secondary);margin-bottom:20px}.certificate-page{padding:120px 0 60px;min-height:100vh}.certificate-wrapper{max-width:900px;margin:0 auto}.certificate-actions{display:flex;justify-content:center;gap:16px;margin-bottom:30px}.certificate{background:linear-gradient(135deg,#1a1a2e,#0f0f1a);border:3px solid var(--spark-orange);border-radius:var(--radius-lg);padding:60px;text-align:center;position:relative;overflow:hidden}.certificate:before{content:"";position:absolute;inset:15px;border:1px solid rgba(245,166,35,.3);border-radius:var(--radius-md);pointer-events:none}.certificate-corner{position:absolute;width:60px;height:60px;border-color:var(--spark-orange)}.certificate-corner.top-right{top:25px;right:25px;border-top:3px solid;border-right:3px solid}.certificate-corner.top-left{top:25px;left:25px;border-top:3px solid;border-left:3px solid}.certificate-corner.bottom-right{bottom:25px;right:25px;border-bottom:3px solid;border-right:3px solid}.certificate-corner.bottom-left{bottom:25px;left:25px;border-bottom:3px solid;border-left:3px solid}.cert-logo{font-size:3rem;margin-bottom:10px}.cert-company{font-size:2rem;font-weight:900;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:4px}.cert-slogan{font-size:.85rem;color:var(--text-muted);letter-spacing:4px;text-transform:uppercase;margin-bottom:30px}.cert-title{font-size:2.5rem;font-weight:800;color:var(--spark-gold);margin-bottom:10px}.cert-text{color:var(--text-secondary);font-size:1.05rem;margin-bottom:8px}.cert-name{font-size:2.2rem;font-weight:800;color:var(--text-primary);margin:16px 0;padding-bottom:10px;border-bottom:2px solid var(--spark-orange);display:inline-block}.cert-course{font-size:1.3rem;font-weight:700;color:var(--spark-orange);margin:10px 0 30px}.cert-footer{display:flex;justify-content:space-between;align-items:flex-end;margin-top:40px;padding-top:20px;border-top:1px solid var(--dark-border)}.cert-footer-item{text-align:center}.cert-footer-item .label{font-size:.8rem;color:var(--text-muted);margin-bottom:4px}.cert-footer-item .value{font-size:.95rem;font-weight:600;color:var(--text-secondary)}.cert-id{font-size:.8rem;color:var(--text-muted);margin-top:12px;letter-spacing:2px}.admin-page{padding:120px 0 60px;min-height:100vh}.admin-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:40px}.admin-header h1{font-size:2rem;font-weight:800}.admin-tabs{display:flex;gap:8px;margin-bottom:30px;border-bottom:1px solid var(--dark-border);padding-bottom:0}.admin-tab{padding:12px 24px;background:none;color:var(--text-secondary);font-size:.95rem;font-weight:500;cursor:pointer;border:none;border-bottom:3px solid transparent;transition:var(--transition-fast);margin-bottom:-1px}.admin-tab:hover{color:var(--text-primary)}.admin-tab.active{color:var(--spark-orange);border-bottom-color:var(--spark-orange);font-weight:700}.admin-table{width:100%;border-collapse:separate;border-spacing:0;background:var(--dark-card);border:1px solid var(--dark-border);border-radius:var(--radius-lg);overflow:hidden}.admin-table th{background:var(--dark-surface);padding:16px 20px;text-align:right;font-weight:700;font-size:.9rem;color:var(--text-secondary);border-bottom:1px solid var(--dark-border)}.admin-table td{padding:16px 20px;border-bottom:1px solid var(--dark-border);font-size:.92rem}.admin-table tr:last-child td{border-bottom:none}.admin-table tr:hover td{background:#f5a62308}.admin-form{background:var(--dark-card);border:1px solid var(--dark-border);border-radius:var(--radius-lg);padding:32px;margin-bottom:30px}.admin-form h3{font-size:1.3rem;font-weight:700;margin-bottom:24px}.admin-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.admin-form-grid .form-group.full-width{grid-column:span 2}.admin-login{max-width:400px;margin:0 auto;text-align:center}.admin-login h2{font-size:1.8rem;font-weight:800;margin-bottom:16px}.admin-login p{color:var(--text-secondary);margin-bottom:28px}.footer{background:var(--dark-surface);border-top:1px solid var(--dark-border);padding:50px 0 24px;margin-top:80px}.footer-content{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:40px}.footer-brand h3{font-size:1.5rem;font-weight:800;margin-bottom:12px;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.footer-brand p{color:var(--text-secondary);font-size:.92rem;line-height:1.8}.footer-links h4{font-size:1rem;font-weight:700;margin-bottom:16px;color:var(--spark-orange)}.footer-links a{display:block;color:var(--text-secondary);font-size:.9rem;padding:6px 0;transition:var(--transition-fast)}.footer-links a:hover{color:var(--spark-orange);padding-right:6px}.footer-bottom{text-align:center;padding-top:24px;border-top:1px solid var(--dark-border);color:var(--text-muted);font-size:.85rem}@media(max-width:992px){.hero h1{font-size:2.5rem}.stats-grid{grid-template-columns:repeat(2,1fr)}.course-detail-header{flex-direction:column}.course-detail-image{flex:none;width:100%;height:220px}.course-meta-grid{grid-template-columns:repeat(2,1fr)}.footer-content{grid-template-columns:1fr}.dashboard-stats{grid-template-columns:repeat(2,1fr)}.admin-form-grid{grid-template-columns:1fr}.admin-form-grid .form-group.full-width{grid-column:span 1}}@media(max-width:768px){.nav-links{display:none;position:fixed;inset:0;background:#0a0a0ffa;flex-direction:column;justify-content:center;align-items:center;gap:16px;z-index:999}.nav-links.open{display:flex}.nav-links a{font-size:1.2rem}.mobile-toggle{display:flex;z-index:1001}.hero h1{font-size:2rem}.hero p.hero-desc{font-size:1rem}.hero-buttons{flex-direction:column;align-items:center}.stats-grid{grid-template-columns:1fr 1fr}.courses-grid{grid-template-columns:1fr}.certificate{padding:40px 24px}.cert-title{font-size:1.8rem}.cert-name{font-size:1.6rem}.cert-footer{flex-direction:column;gap:20px;align-items:center}.enrolled-course-item{flex-direction:column;text-align:center}.dashboard-stats{grid-template-columns:1fr}.admin-table{font-size:.85rem}.admin-table th,.admin-table td{padding:12px}}@media(max-width:480px){.hero h1{font-size:1.7rem}.stats-grid{grid-template-columns:1fr}.section-header h2{font-size:1.8rem}.auth-card{padding:24px 16px;max-width:100%;border-radius:var(--radius-md)}.auth-card h2{font-size:1.6rem}.form-group input,.form-group select,.form-group textarea{padding:12px 14px;font-size:.95rem}.form-group label{font-size:.85rem}.container{padding:0 16px}.classroom-page .container{padding:16px}.section-header h2{font-size:1.5rem}.btn{padding:12px 24px;font-size:.95rem}}.back-btn{display:flex;align-items:center;gap:10px;background:#1e1f22b3;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.08);color:var(--text-primary);padding:10px 20px;border-radius:var(--radius-xl);font-size:.95rem;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);width:fit-content;text-decoration:none;z-index:100;position:relative;box-shadow:0 4px 15px #0003}.back-btn:before{content:"→";font-size:1.2rem;transition:transform .3s ease}.back-btn i,.back-btn span{font-size:1rem}.back-btn:hover{background:var(--spark-orange);color:var(--dark-bg);border-color:transparent;box-shadow:0 6px 20px 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