:root{--bg: #f5f7fb;--fg: #1f2430;--muted: #5f6673;--card: #ffffff;--border: #d8deeb;--hover: #f0f4ff;--toast-bg: #1f2430;--toast-fg: #ffffff}:root[data-theme=dark]{--bg: #10131b;--fg: #e7ecf7;--muted: #9da8c3;--card: #191f2b;--border: #2a3345;--hover: #222b3d;--toast-bg: #f5f7fb;--toast-fg: #10131b}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--fg);background:var(--bg)}#app{min-height:100vh}.container{width:min(680px,100%);margin:0 auto;padding:20px 16px 56px}.top-row{display:flex;justify-content:flex-end;align-items:center;gap:8px;margin-bottom:12px}.theme-label{color:var(--muted);font-size:12px}.theme-toggle{width:36px;height:36px;border-radius:999px;border:1px solid var(--border);background:var(--card);color:var(--fg);cursor:pointer}.profile-header{text-align:center;margin-bottom:20px}.avatar{width:96px;height:96px;border-radius:999px;border:1px solid var(--border);object-fit:cover;background:var(--card)}.name{margin:12px 0 4px;font-size:30px;line-height:1.2}.tagline{margin:0;color:var(--muted)}.link-list{list-style:none;padding:0;margin:0;display:grid;gap:10px}.link-card{display:grid;grid-template-columns:1fr auto;align-items:center;border:1px solid var(--border);border-radius:12px;background:var(--card);transition:background .2s ease}.link-card:hover{background:var(--hover)}.link-main{display:flex;align-items:center;gap:12px;padding:12px 14px;color:var(--fg);text-decoration:none}.link-icon{width:24px;height:24px}.copy-button{height:100%;min-width:48px;border:0;border-left:1px solid var(--border);background:transparent;color:var(--muted);cursor:pointer;font-size:18px}.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%);background:var(--toast-bg);color:var(--toast-fg);padding:9px 14px;border-radius:10px;font-size:14px}@media (max-width: 480px){.name{font-size:26px}}