*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}:root{--color-bg: #0a0a0a;--color-bg-elevated: #111111;--color-text: #f5f5f7;--color-text-muted: #86868b;--color-text-subtle: #6e6e73;--color-accent: #0071e3;--color-accent-hover: #0077ed;--color-border: #1d1d1f;--color-border-light: #2d2d2f;--font-family: "Vazirmatn", -apple-system, BlinkMacSystemFont, sans-serif;--font-family-latin: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--space-3xl: 4rem;--space-4xl: 6rem;--space-5xl: 8rem;--radius-sm: .5rem;--radius-md: 1rem;--radius-lg: 1.5rem;--radius-xl: 2rem;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .3s cubic-bezier(.4, 0, .2, 1);--transition-slow: .5s cubic-bezier(.4, 0, .2, 1)}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}body{font-family:var(--font-family);background-color:var(--color-bg);color:var(--color-text);line-height:1.6;overflow-x:hidden;direction:rtl}h1,h2,h3{font-weight:700;line-height:1.2;letter-spacing:-.02em}h1{font-size:clamp(2.5rem,6vw,5rem);font-weight:800}h2{font-size:clamp(2rem,4vw,3.5rem)}h3{font-size:clamp(1.5rem,3vw,2.5rem)}p{font-size:clamp(1rem,1.5vw,1.25rem);color:var(--color-text-muted);line-height:1.8}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--space-xl)}.section{min-height:100vh;position:relative;display:flex;align-items:center;justify-content:center;padding:var(--space-5xl) 0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:var(--space-md) var(--space-xl);font-family:var(--font-family);font-size:1rem;font-weight:500;text-decoration:none;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast)}.btn-primary{background-color:var(--color-accent);color:#fff}.btn-primary:hover{background-color:var(--color-accent-hover);transform:translateY(-2px)}.btn-secondary{background-color:transparent;color:var(--color-text);border:1px solid var(--color-border-light)}.btn-secondary:hover{background-color:var(--color-bg-elevated);border-color:var(--color-text-muted)}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}html{scroll-behavior:auto}}*:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}.scroll-top{position:fixed;bottom:24px;left:24px;z-index:70;width:52px;height:52px;border-radius:50%;border:1px solid var(--color-border-light);background:#111111d9;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);color:var(--color-text);display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;transform:translateY(16px);pointer-events:none;transition:opacity var(--transition-base),transform var(--transition-base),border-color var(--transition-fast)}.scroll-top svg{width:22px;height:22px}.scroll-top.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}.scroll-top:hover{border-color:var(--color-accent);color:var(--color-accent)}@media (max-width: 768px){.scroll-top{bottom:16px;left:16px;width:46px;height:46px}}