.header[data-v-f38ee2de]{background:var(--bg-secondary);border-bottom:1px solid var(--border);padding:12px 24px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100}.logo[data-v-f38ee2de]{display:flex;align-items:center;gap:10px;font-size:1.25rem;font-weight:700;color:var(--text-primary)}.logo[data-v-f38ee2de]:hover{color:var(--text-primary)}.logo-icon[data-v-f38ee2de]{width:32px;height:32px;background:linear-gradient(135deg,#ff6b35,#f7931a);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:18px}.nav-links[data-v-f38ee2de]{display:flex;gap:16px}.nav-link[data-v-f38ee2de]{color:var(--text-secondary);font-size:14px;font-weight:500;padding:6px 12px;border-radius:6px;transition:all .2s}.nav-link[data-v-f38ee2de]:hover,.nav-link.router-link-active[data-v-f38ee2de]{color:var(--text-primary);background:var(--bg-tertiary)}.nav-admin[data-v-f38ee2de]{color:var(--warning)}.nav-admin[data-v-f38ee2de]:hover,.nav-admin.router-link-active[data-v-f38ee2de]{color:var(--warning);background:#d299221a}.header-actions[data-v-f38ee2de]{display:flex;align-items:center;gap:12px}.user-points[data-v-f38ee2de]{color:var(--accent);font-size:13px;font-weight:600;font-family:JetBrains Mono,monospace}.user-info[data-v-f38ee2de]{color:var(--text-secondary);font-size:14px;font-weight:500}.app[data-v-cbe7b1d1]{min-height:100vh;display:flex;flex-direction:column}.main-content[data-v-cbe7b1d1]{flex:1}.home[data-v-cdd27d90]{max-width:900px;margin:0 auto;padding:60px 24px}.hero[data-v-cdd27d90]{text-align:center;margin-bottom:60px}.hero-title[data-v-cdd27d90]{font-size:3rem;font-weight:700;margin-bottom:12px;background:linear-gradient(135deg,#ff6b35,#f7931a);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle[data-v-cdd27d90]{font-size:1.2rem;color:var(--text-secondary);margin-bottom:8px}.hero-desc[data-v-cdd27d90]{font-size:1rem;color:var(--text-muted);margin-bottom:32px}.github-star[data-v-cdd27d90]{display:inline-flex;align-items:center;gap:8px;margin-top:24px;padding:10px 20px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;color:var(--text-primary);font-size:14px;font-weight:500;text-decoration:none;transition:all .2s}.github-star[data-v-cdd27d90]:hover{background:var(--bg-tertiary);border-color:var(--accent)}.github-icon[data-v-cdd27d90]{flex-shrink:0}.hero-actions[data-v-cdd27d90]{display:flex;gap:12px;justify-content:center}.btn-lg[data-v-cdd27d90]{padding:12px 28px;font-size:16px}.features[data-v-cdd27d90]{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.feature-card[data-v-cdd27d90]{background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;padding:28px 24px;text-align:center}.feature-icon[data-v-cdd27d90]{font-size:2rem;margin-bottom:12px}.feature-card h3[data-v-cdd27d90]{font-size:1rem;margin-bottom:8px}.feature-card p[data-v-cdd27d90]{font-size:.875rem;color:var(--text-secondary);line-height:1.5}@media(max-width:640px){.features[data-v-cdd27d90]{grid-template-columns:1fr}.hero-title[data-v-cdd27d90]{font-size:2rem}}:root{--bg-primary: #0d1117;--bg-secondary: #161b22;--bg-tertiary: #21262d;--bg-hover: #30363d;--border: #30363d;--text-primary: #e6edf3;--text-secondary: #8b949e;--text-muted: #6e7681;--accent: #58a6ff;--accent-hover: #79b8ff;--success: #3fb950;--warning: #d29922;--error: #f85149;--easy: #3fb950;--medium: #d29922;--hard: #f85149}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover)}.btn{padding:8px 16px;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s;border:1px solid transparent;display:inline-flex;align-items:center;gap:6px;font-family:inherit}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-primary:hover{background:var(--accent-hover)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border-color:var(--border)}.btn-secondary:hover{background:var(--bg-hover)}input,select{background:var(--bg-tertiary);border:1px solid var(--border);color:var(--text-primary);padding:10px 14px;border-radius:6px;font-size:14px;font-family:inherit;outline:none;transition:border-color .2s;width:100%}input:focus,select:focus{border-color:var(--accent)}input::placeholder{color:var(--text-muted)}