:root{--bg: #0f1115;--surface: #181b22;--border: #2a2f3a;--fg: #e6e9ef;--muted: #9aa3b2;--accent: #4f8cff;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);min-height:100vh}.centered{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;text-align:center;gap:.75rem;padding:1rem}.page{max-width:1200px;margin:0 auto;padding:2rem 1.5rem}.page-header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border);padding-bottom:1rem;margin-bottom:2rem}.user{display:flex;align-items:center;gap:1rem;color:var(--muted);font-size:.9rem}.tile-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1.25rem}.tile{display:block;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:1.25rem;color:var(--fg);text-decoration:none;transition:border-color .12s ease,transform .12s ease}.tile:hover{border-color:var(--accent);transform:translateY(-2px)}.tile-title{font-size:1.15rem;font-weight:600;margin-bottom:.35rem}.tile-description{color:var(--muted);font-size:.9rem}.tile-note{margin-top:.5rem;color:var(--muted);font-size:.75rem;font-style:italic}button{background:var(--accent);color:#fff;border:0;border-radius:8px;padding:.55rem 1.1rem;cursor:pointer;font:inherit}button:hover{filter:brightness(1.1)}