:root{color-scheme:dark;font-family:Vazirmatn,Inter,Segoe UI,system-ui,sans-serif;--bg-base: #050608;--bg-elevated: rgba(12, 14, 20, .82);--border-subtle: rgba(255, 255, 255, .06);--border-strong: rgba(255, 255, 255, .1);--text-primary: #eceff4;--text-secondary: #9aa3b2;--text-muted: #6b7280;--accent: #3b82f6;--accent-bright: #60a5fa;--accent-dim: rgba(59, 130, 246, .14);--accent-glow: rgba(59, 130, 246, .35);--radius-lg: 14px;--radius-xl: 20px;--header-h: 3.5rem;background:var(--bg-base);color:var(--text-primary)}*{box-sizing:border-box}body{margin:0;min-height:100vh;line-height:1.55;background:var(--bg-base)}.page-grid{position:fixed;inset:0;pointer-events:none;z-index:0;background:radial-gradient(ellipse 80% 50% at 50% -20%,rgba(59,130,246,.18),transparent 55%),radial-gradient(circle at 85% 60%,rgba(37,99,235,.08),transparent 40%),linear-gradient(180deg,#07080c 0%,var(--bg-base) 45%,#030405 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20px var(--accent-glow)}.site-nav{display:flex;align-items:center;gap:.25rem}.site-nav a{padding:.4rem .75rem;border-radius:8px;color:var(--text-secondary);text-decoration:none;font-size:.88rem;font-weight:500;transition:color .15s,background .15s}.site-nav a:hover{color:var(--text-primary);background:#ffffff0a}.site-nav span[aria-current],.site-nav .active{padding:.4rem .75rem;border-radius:8px;color:var(--text-primary);font-size:.88rem;font-weight:500;background:var(--accent-dim)}.page-landing{display:flex;flex-direction:column}.landing-main{position:relative;z-index:1;flex:1;width:min(960px,92vw);margin:0 auto;padding:clamp(2.5rem,6vw,4.5rem) 0 3rem}.hero{text-align:center;margin-bottom:clamp(2.5rem,5vw,4rem)}.eyebrow{display:inline-block;margin:0 0 1.25rem;padding:.3rem .7rem;border-radius:999px;border:1px solid var(--border-strong);background:var(--accent-dim);color:var(--accent-bright);font-size:.78rem;font-weight:600;letter-spacing:.02em}h1{margin:0 0 1rem;font-size:clamp(1.85rem,4.5vw,2.75rem);font-weight:650;letter-spacing:-.03em;line-height:1.15}.lead{margin:0 auto 1.75rem;max-width:36rem;font-size:1.05rem;line-height:1.75;color:var(--text-secondary)}.cta-row{display:flex;flex-wrap:wrap;gap:.75rem;justify-content:center}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.7rem 1.35rem;border-radius:var(--radius-lg);font:inherit;font-size:.92rem;font-weight:600;text-decoration:none;cursor:pointer;border:1px solid transparent;transition:filter .15s,border-color .15s,background .15s}.btn-primary{color:#f8fafc;background:linear-gradient(180deg,#4b8df8,#2563eb);box-shadow:0 1px #ffffff1f inset,0 8px 24px #2563eb59}.btn-primary:hover{filter:brightness(1.06)}.btn-ghost{color:var(--text-primary);background:#ffffff0a;border-color:var(--border-strong)}.btn-ghost:hover{background:#ffffff12;border-color:#ffffff24}.feature-grid{display:grid;gap:1rem;grid-template-columns:1fr}@media(min-width:720px){.feature-grid{grid-template-columns:repeat(3,1fr)}}.feature-card{padding:1.25rem 1.35rem;border-radius:var(--radius-xl);border:1px solid var(--border-subtle);background:var(--bg-elevated);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);text-align:right}.feature-card h2{margin:0 0 .5rem;font-size:.95rem;font-weight:600;letter-spacing:-.02em}.feature-card p{margin:0;font-size:.88rem;color:var(--text-secondary);line-height:1.65}.site-footer{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;gap:.5rem;padding:1.5rem;font-size:.8rem;color:var(--text-muted);border-top:1px solid var(--border-subtle)}.footer-dot{opacity:.5}.muted{color:var(--text-muted)}.page-app{display:flex;flex-direction:column;min-height:100vh}.app-main{position:relative;z-index:1;flex:1;width:min(720px,94vw);margin:0 auto;padding:1.5rem 0 3rem}.app-main .page-title{margin:0 0 .5rem;font-size:clamp(1.35rem,3vw,1.75rem);font-weight:650;letter-spacing:-.02em}.app-main .page-intro{margin:0 0 1.5rem;color:var(--text-secondary);font-size:.95rem;line-height:1.7}.shell,.shell-wide{width:100%;padding:0;border:0;border-radius:0;background:transparent;-webkit-backdrop-filter:none;backdrop-filter:none;text-align:right}.badge{display:inline-block;margin:0 0 1rem;padding:.35rem .75rem;border-radius:999px;background:var(--accent-dim);color:var(--accent-bright);font-size:.8rem;font-weight:600}button{border:0;border-radius:var(--radius-lg);padding:.7rem 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var(--border-subtle);font-size:.78rem;overflow-x:auto;color:var(--text-secondary)}.shell-wide{width:100%;text-align:right}.settings-form{display:grid;gap:1rem;margin:1.5rem 0;text-align:right}.field{display:grid;gap:.35rem}.field span{font-weight:600}.field select,.field input{width:100%;padding:.65rem .75rem;border-radius:10px;border:1px solid rgba(255,255,255,.12);background:#00000040;color:inherit;font:inherit}.hint{color:var(--text-muted, #8fa3bc);font-size:.85rem;line-height:1.5}.signup a{color:var(--accent-bright, #60a5fa)}.actions{margin-top:.5rem}.note{margin-top:2rem;padding-top:1.25rem;border-top:1px solid rgba(255,255,255,.08);text-align:right;color:#b8c4d6;font-size:.92rem}.note h2{font-size:1rem;margin:0 0 .75rem}.note ul{margin:0 0 1rem;padding-right:1.2rem}.note code{font-size:.85em}