:root{--bg:#fafaf9;--surface:#fff;--border:#e7e5e4;--text:#1c1917;--dim:#78716c;--accent:#7c5cff;--accent-dim:#f3f0ff;--green:#16a34a;--green-dim:#f0fdf4}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}a{color:inherit;text-decoration:none}.container{max-width:1100px;margin:0 auto;padding:0 1.5rem}.nav{background:var(--surface);border-bottom:1px solid var(--border);position:-webkit-sticky;position:sticky;top:0;z-index:50}.nav-inner{max-width:1100px;margin:0 auto;padding:.9rem 1.5rem;display:flex;align-items:center;gap:1.5rem}.logo{font-weight:700;font-size:1.1rem;color:var(--accent)}.nav a{color:var(--dim);font-size:.9rem;font-weight:500;transition:color .15s}.nav a.active,.nav a:hover{color:var(--text)}.nav-right{margin-left:auto;display:flex;align-items:center;gap:1rem}.avatar{width:30px;height:30px;border-radius:50%}.btn{background:var(--accent);color:#fff;border:none;padding:.55rem 1.1rem;border-radius:8px;font-weight:600;font-size:.9rem;cursor:pointer}.btn-ghost{background:none;color:var(--dim);border:1px solid var(--border)}.search-box{width:100%;padding:.7rem 1rem;border:1px solid var(--border);border-radius:10px;font-size:.95rem}.card,.search-box{background:var(--surface)}.card{border:1px solid var(--border);border-radius:12px;padding:1.3rem;transition:all .15s}.card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 4px 16px rgba(0,0,0,.05)}.card h3{font-size:1.05rem;margin-bottom:.4rem}.meta{font-size:.8rem;color:var(--dim);display:flex;gap:.8rem;flex-wrap:wrap}.tag{background:var(--accent-dim);color:var(--accent);padding:.15rem .55rem;border-radius:5px;font-size:.72rem;font-weight:600}.tag-green{background:var(--green-dim);color:var(--green)}.grid{display:grid;grid-gap:1rem;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}.page-title{font-size:1.6rem;font-weight:700;margin:2rem 0 .3rem}.page-sub{color:var(--dim);margin-bottom:1.5rem}.prose{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:2rem;max-width:760px}.prose h1{font-size:1.6rem;margin-bottom:1rem}.prose h2{font-size:1.2rem;margin:1.5rem 0 .7rem;padding-bottom:.3rem;border-bottom:1px solid var(--border)}.prose ul{margin:.7rem 0 .7rem 1.5rem}.prose li{margin:.3rem 0}.prose a{color:var(--accent)}.prose table{border-collapse:collapse;margin:1rem 0;width:100%}.prose td,.prose th{border:1px solid var(--border);padding:.5rem .8rem;text-align:left}.prose blockquote{border-left:3px solid var(--accent);padding-left:1rem;color:var(--dim);margin:1rem 0}.login-screen{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1.5rem;text-align:center}.login-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:3rem;max-width:400px}.empty{text-align:center;color:var(--dim);padding:3rem}