@import "https://fonts.googleapis.com/css2?family=Cairo:wght@300;400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700&display=swap";
:root{--brand-primary:#4f6ef7;--brand-primary-light:#7b96ff;--brand-primary-dark:#3451d1;--brand-accent:#14c8a0;--brand-accent-light:#3ddec0;--bg-base:#0a0c14;--bg-surface:#111320;--bg-card:#181b2e;--bg-elevated:#1f2340;--bg-border:#252a45;--text-primary:#f0f4ff;--text-secondary:#9ba8cc;--text-muted:#5a6480;--text-inverse:#0a0c14;--status-success:#14c8a0;--status-warning:#f5a623;--status-error:#ff5e7d;--status-info:#4f6ef7;--gradient-brand:linear-gradient(135deg,#4f6ef7 0%,#14c8a0 100%);--gradient-hero:radial-gradient(ellipse 80% 60% at 50% 0%,#4f6ef72e 0%,transparent 70%);--gradient-card:linear-gradient(145deg,#1f2340cc,#181b2e99);--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:32px;--space-2xl:48px;--space-3xl:64px;--space-4xl:96px;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--radius-full:9999px;--shadow-sm:0 1px 3px #0006;--shadow-md:0 4px 16px #00000080;--shadow-lg:0 8px 32px #0009;--shadow-glow:0 0 32px #4f6ef740;--shadow-glow-accent:0 0 24px #14c8a033;--transition-fast:.15s ease;--transition-base:.25s ease;--transition-slow:.4s ease;--font-arabic:"Cairo",sans-serif;--font-latin:"Inter",sans-serif;--font-size-xs:12px;--font-size-sm:14px;--font-size-base:16px;--font-size-lg:18px;--font-size-xl:20px;--font-size-2xl:24px;--font-size-3xl:30px;--font-size-4xl:36px;--font-size-5xl:48px;--font-size-6xl:60px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;font-size:16px}html[dir=rtl]{font-family:var(--font-arabic)}html[dir=ltr]{font-family:var(--font-latin)}body{background-color:var(--bg-base);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;line-height:1.7;overflow-x:hidden}[dir=rtl]{text-align:right}[dir=ltr]{text-align:left}h1,h2,h3,h4,h5,h6{color:var(--text-primary);font-weight:700;line-height:1.3}h1{font-size:var(--font-size-5xl)}h2{font-size:var(--font-size-4xl)}h3{font-size:var(--font-size-3xl)}h4{font-size:var(--font-size-2xl)}h5{font-size:var(--font-size-xl)}h6{font-size:var(--font-size-lg)}p{color:var(--text-secondary);line-height:1.8}a{color:var(--brand-primary-light);transition:color var(--transition-fast);text-decoration:none}a:hover{color:var(--brand-primary)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--bg-base)}::-webkit-scrollbar-thumb{background:var(--bg-border);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.container{width:100%;max-width:1180px;padding-inline:var(--space-lg);margin-inline:auto}.section{padding-block:var(--space-4xl)}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-sm{gap:var(--space-sm)}.gap-md{gap:var(--space-md)}.gap-lg{gap:var(--space-lg)}.gap-xl{gap:var(--space-xl)}.grid{display:grid}.card{background:var(--gradient-card);border:1px solid var(--bg-border);border-radius:var(--radius-lg);padding:var(--space-xl);-webkit-backdrop-filter:blur(12px);transition:border-color var(--transition-base),box-shadow var(--transition-base),transform var(--transition-base)}.card:hover{box-shadow:var(--shadow-glow);border-color:#4f6ef759}.card-clickable{cursor:pointer}.card-clickable:hover{transform:translateY(-2px)}.btn{justify-content:center;align-items:center;gap:var(--space-sm);padding:12px var(--space-xl);border-radius:var(--radius-full);font-weight:600;font-size:var(--font-size-base);cursor:pointer;transition:all var(--transition-fast);white-space:nowrap;border:none;outline:none;font-family:inherit;text-decoration:none;display:inline-flex;position:relative;overflow:hidden}.btn:after{content:"";transition:background var(--transition-fast);background:#fff0;position:absolute;inset:0}.btn:hover:after{background:#ffffff14}.btn:active:after{background:#ffffff24}.btn:disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.btn-primary{background:var(--gradient-brand);color:#fff;box-shadow:0 4px 20px #4f6ef766}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 28px #4f6ef78c}.btn-secondary{background:var(--bg-elevated);color:var(--text-primary);border:1px solid var(--bg-border)}.btn-secondary:hover{border-color:var(--brand-primary);color:var(--brand-primary-light)}.btn-ghost{color:var(--text-secondary);background:0 0}.btn-ghost:hover{color:var(--text-primary);background:var(--bg-elevated)}.btn-danger{color:var(--status-error);background:#ff5e7d26;border:1px solid #ff5e7d4d}.btn-lg{font-size:var(--font-size-lg);padding:16px 36px}.btn-sm{font-size:var(--font-size-sm);padding:8px 16px}.btn-icon{border-radius:var(--radius-md);aspect-ratio:1;padding:10px}.input-wrap{width:100%;position:relative}.input{background:var(--bg-elevated);border:1.5px solid var(--bg-border);border-radius:var(--radius-lg);width:100%;color:var(--text-primary);font-size:var(--font-size-base);transition:border-color var(--transition-fast),box-shadow var(--transition-fast),background var(--transition-fast);outline:none;padding:14px 20px;font-family:inherit}.input::placeholder{color:var(--text-muted)}.input:focus{border-color:var(--brand-primary);background:var(--bg-card);box-shadow:0 0 0 3px #4f6ef726}.input-error{border-color:var(--status-error)!important}.input-xl{font-size:var(--font-size-lg);border-radius:var(--radius-xl);padding:18px 24px}.badge{border-radius:var(--radius-full);font-size:var(--font-size-xs);letter-spacing:.5px;align-items:center;gap:4px;padding:3px 10px;font-weight:600;display:inline-flex}.badge-primary{color:var(--brand-primary-light);background:#4f6ef726;border:1px solid #4f6ef74d}.badge-success{color:var(--status-success);background:#14c8a01f;border:1px solid #14c8a04d}.badge-warning{color:var(--status-warning);background:#f5a6231f;border:1px solid #f5a6234d}.badge-error{color:var(--status-error);background:#ff5e7d1f;border:1px solid #ff5e7d4d}.divider{background:var(--bg-border);width:100%;height:1px;margin-block:var(--space-lg)}@keyframes shimmer{0%{background-position:-400px 0}to{background-position:400px 0}}.skeleton{background:linear-gradient(90deg,var(--bg-elevated)0%,var(--bg-border)50%,var(--bg-elevated)100%);border-radius:var(--radius-sm);background-size:800px 100%;animation:1.5s linear infinite shimmer}.hero-bg{position:relative;overflow:hidden}.hero-bg:before{content:"";background:var(--gradient-hero);pointer-events:none;z-index:0;position:absolute;inset:0}.hero-bg>*{z-index:1;position:relative}.glass{-webkit-backdrop-filter:blur(20px);background:#181b2eb3;border:1px solid #ffffff0f}.text-gradient{background:var(--gradient-brand);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}@keyframes fadeIn{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInScale{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes bounceIn{0%{opacity:0;transform:scale(.8)}60%{transform:scale(1.05)}to{opacity:1;transform:scale(1)}}@keyframes progressBar{0%{transform:scaleX(0)}to{transform:scaleX(1)}}.animate-fade-in{animation:.4s forwards fadeIn}.animate-fade-in-scale{animation:.3s forwards fadeInScale}.animate-pulse{animation:2s infinite pulse}.animate-spin{animation:.8s linear infinite spin}.animate-bounce-in{animation:.5s forwards bounceIn}.stagger-children>:first-child{animation-delay:0s}.stagger-children>:nth-child(2){animation-delay:80ms}.stagger-children>:nth-child(3){animation-delay:.16s}.stagger-children>:nth-child(4){animation-delay:.24s}.stagger-children>:nth-child(5){animation-delay:.32s}.chat-bubble{border-radius:var(--radius-lg);max-width:82%;font-size:var(--font-size-sm);padding:12px 16px;line-height:1.7}.chat-bubble-user{color:var(--text-primary);background:#4f6ef733;border:1px solid #4f6ef74d;border-end-start-radius:var(--radius-sm);margin-inline-start:auto}.chat-bubble-ai{background:var(--bg-elevated);border:1px solid var(--bg-border);color:var(--text-primary);border-end-end-radius:var(--radius-sm);margin-inline-end:auto}.quiz-card{perspective:1000px;cursor:pointer;height:200px}.quiz-card-inner{width:100%;height:100%;transform-style:preserve-3d;transition:transform .6s cubic-bezier(.4,0,.2,1);position:relative}.quiz-card.flipped .quiz-card-inner{transform:rotateY(180deg)}.quiz-card-front,.quiz-card-back{backface-visibility:hidden;border-radius:var(--radius-lg);padding:var(--space-xl);text-align:center;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.quiz-card-front{background:var(--gradient-card);border:1px solid var(--bg-border)}.quiz-card-back{background:linear-gradient(145deg,#14c8a026,#4f6ef71a);border:1px solid #14c8a04d;transform:rotateY(180deg)}.progress-bar-track{background:var(--bg-elevated);border-radius:var(--radius-full);width:100%;height:4px;overflow:hidden}.progress-bar-fill{background:var(--gradient-brand);border-radius:var(--radius-full);height:100%;transition:width .5s}.tabs{background:var(--bg-elevated);border-radius:var(--radius-lg);gap:4px;padding:4px;display:flex}.tab{border-radius:var(--radius-md);font-size:var(--font-size-sm);cursor:pointer;color:var(--text-muted);transition:all var(--transition-fast);background:0 0;border:none;padding:8px 20px;font-family:inherit;font-weight:600}.tab.active{background:var(--bg-card);color:var(--brand-primary-light);box-shadow:var(--shadow-sm)}.tab:hover:not(.active){color:var(--text-secondary)}.empty-state{justify-content:center;align-items:center;gap:var(--space-lg);padding:var(--space-4xl)var(--space-xl);text-align:center;flex-direction:column;display:flex}.empty-state-icon{border-radius:var(--radius-xl);background:var(--bg-elevated);width:80px;height:80px;color:var(--text-muted);border:1px dashed var(--bg-border);justify-content:center;align-items:center;display:flex}.banner{border-radius:var(--radius-lg);padding:var(--space-md)var(--space-lg);align-items:center;gap:var(--space-md);display:flex}.banner-warning{color:var(--status-warning);background:#f5a6231a;border:1px solid #f5a62340}.banner-error{color:var(--status-error);background:#ff5e7d1a;border:1px solid #ff5e7d40}.banner-info{color:var(--brand-primary-light);background:#4f6ef714;border:1px solid #4f6ef733}.text-sm{font-size:var(--font-size-sm)}.text-xs{font-size:var(--font-size-xs)}.text-lg{font-size:var(--font-size-lg)}.text-xl{font-size:var(--font-size-xl)}.text-2xl{font-size:var(--font-size-2xl)}.text-muted{color:var(--text-muted)}.text-secondary{color:var(--text-secondary)}.text-success{color:var(--status-success)}.text-error{color:var(--status-error)}.text-warning{color:var(--status-warning)}.font-medium{font-weight:500}.font-semibold{font-weight:600}.font-bold{font-weight:700}.w-full{width:100%}.h-full{height:100%}.relative{position:relative}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (max-width:768px){h2{font-size:var(--font-size-3xl)}h3{font-size:var(--font-size-2xl)}.container{padding-inline:var(--space-md)}.section{padding-block:var(--space-3xl)}.card{padding:var(--space-lg)}.btn-lg{font-size:var(--font-size-base);padding:14px 28px}h1{font-size:2.2rem}}@media (max-width:480px){h1{font-size:1.9rem}.chat-bubble{max-width:95%}}