:root{--color-bg-primary:#0a0e1a;--color-bg-secondary:#131824;--color-surface:#131824;--color-bg-tertiary:#1a2030;--color-bg-elevated:#1f2937;--color-text-primary:#f9fafb;--color-text-secondary:#d1d5db;--color-text-tertiary:#9ca3af;--color-accent-primary:#3b82f6;--color-accent-secondary:#8b5cf6;--color-accent-tertiary:#ec4899;--color-similarity-far:#ef4444;--color-similarity-medium:#f59e0b;--color-similarity-close:#10b981;--color-similarity-very-close:#06b6d4;--gradient-primary:linear-gradient(135deg,#667eea,#764ba2);--gradient-secondary:linear-gradient(135deg,#f093fb,#f5576c);--gradient-accent:linear-gradient(135deg,#4facfe,#00f2fe);--spacing-xs:0.25rem;--spacing-sm:0.5rem;--spacing-md:1rem;--spacing-lg:1.5rem;--spacing-xl:2rem;--spacing-2xl:3rem;--radius-sm:0.375rem;--radius-md:0.5rem;--radius-lg:0.75rem;--radius-xl:1rem;--radius-full:9999px;--shadow-sm:0 1px 2px 0 rgba(0,0,0,0.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.1);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.1);--shadow-xl:0 20px 25px -5px rgba(0,0,0,0.1);--shadow-glow:0 0 20px rgba(59,130,246,0.3);--transition-fast:150ms cubic-bezier(0.4,0,0.2,1);--transition-base:250ms cubic-bezier(0.4,0,0.2,1);--transition-slow:350ms cubic-bezier(0.4,0,0.2,1)}[data-theme=light]{--color-bg-primary:#ffffff;--color-bg-secondary:#f9fafb;--color-bg-tertiary:#f3f4f6;--color-bg-elevated:#ffffff;--color-text-primary:#111827;--color-text-secondary:#4b5563;--color-text-tertiary:#6b7280;--shadow-glow:0 0 20px rgba(59,130,246,0.15)}*{margin:0;padding:0;box-sizing:border-box}html{direction:rtl;font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:Cairo,Tajawal,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--color-bg-primary);color:var(--color-text-primary);line-height:1.6;min-height:100vh;overflow-x:hidden}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2;margin-bottom:var(--spacing-md)}h1{font-size:2.5rem;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}h2{font-size:2rem}h3{font-size:1.5rem}p{margin-bottom:var(--spacing-md)}a{color:var(--color-accent-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-accent-secondary)}button{font-family:inherit;font-size:1rem;font-weight:600;padding:var(--spacing-sm) var(--spacing-lg);border:none;border-radius:var(--radius-md);background:var(--gradient-primary);color:white;cursor:pointer;transition:all var(--transition-base);box-shadow:var(--shadow-md)}button:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}button:active{transform:translateY(0)}button:disabled{opacity:.5;cursor:not-allowed;transform:none}input[type=search],input[type=text]{font-family:inherit;font-size:1.125rem;padding:var(--spacing-md) var(--spacing-lg);border:2px solid var(--color-bg-tertiary);border-radius:var(--radius-lg);background:var(--color-bg-secondary);color:var(--color-text-primary);width:100%;transition:all var(--transition-base);text-align:right}input[type=search]:focus,input[type=text]:focus{outline:none;border-color:var(--color-accent-primary);box-shadow:var(--shadow-glow)}input::placeholder{color:var(--color-text-tertiary)}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--color-bg-secondary)}::-webkit-scrollbar-thumb{background:var(--color-bg-tertiary);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-accent-primary)}.container{max-width:800px;margin:0 auto;padding:0 var(--spacing-lg)}.card{background:var(--color-bg-secondary);border-radius:var(--radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-md)}.glass{background:rgba(26,32,48,.7);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.1)}.gradient-text{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInRight{0%{opacity:0;transform:translateX(-20px)}to{opacity:1;transform:translateX(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes shimmer{0%{background-position:-1000px 0}to{background-position:1000px 0}}.animate-fade-in{animation:fadeIn var(--transition-base) ease-out}.animate-slide-in{animation:slideInRight var(--transition-base) ease-out}.animate-pulse{animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}.spinner{width:40px;height:40px;border:4px solid var(--color-bg-tertiary);border-top-color:var(--color-accent-primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}@media (max-width:768px){html{font-size:14px}h1{font-size:2rem}.container{padding:0 var(--spacing-md)}}