:root{--primary: #16a34a;--primary-dark: #15803d;--primary-tint: #dcfce7;--primary-soft: #f0fdf4;--bg: #f8fafc;--surface: #ffffff;--surface-alt: #f1f5f9;--text: #0f172a;--text-muted: #64748b;--text-faint: #94a3b8;--border: #e2e8f0;--danger: #ef4444;--star: #f59e0b;--radius: 12px;--radius-lg: 16px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font-family:inherit}.app-shell{display:grid;grid-template-columns:248px 1fr;min-height:100vh}.sidebar{border-right:1px solid var(--border);background:var(--surface);padding:20px 12px;position:sticky;top:0;height:100vh;overflow-y:auto}.sidebar-brand{display:flex;align-items:center;gap:8px;font-weight:800;font-size:20px;padding:4px 10px 18px}.nav-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:10px;color:var(--text-muted);font-weight:600;font-size:14px;cursor:pointer;margin-bottom:2px}.nav-item:hover{background:var(--surface-alt);color:var(--text)}.nav-item.active{background:var(--primary-soft);color:var(--primary)}.main{display:flex;flex-direction:column;min-width:0}.topbar{display:flex;align-items:center;gap:16px;padding:12px 24px;background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}.topbar .search{flex:1;display:flex;align-items:center;gap:8px;background:var(--surface-alt);border:1px solid var(--border);border-radius:10px;padding:9px 14px;color:var(--text-muted)}.topbar .search input{border:none;background:transparent;outline:none;flex:1;font-size:14px;color:var(--text)}.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;cursor:pointer;color:var(--text)}.icon-btn:hover{background:var(--surface-alt)}.content{padding:24px;max-width:1200px;width:100%;margin:0 auto}.content-grid{display:grid;grid-template-columns:1fr 320px;gap:24px;align-items:start}@media (max-width: 1024px){.content-grid{grid-template-columns:1fr}.app-shell{grid-template-columns:72px 1fr}.sidebar .nav-label,.sidebar-brand span{display:none}}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px}.section-title{font-size:16px;font-weight:800;margin:0 0 12px}.row{display:flex;align-items:center;gap:12px}.spacer{flex:1}.muted{color:var(--text-muted)}.faint{color:var(--text-faint)}.avatar{display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:var(--primary);color:#fff;font-weight:700;flex:none;background-size:cover;background-position:center}.hero{position:relative;border-radius:var(--radius-lg);overflow:hidden;color:#fff;min-height:200px;display:flex}.hero-bg{position:absolute;top:0;right:0;bottom:0;left:0;background-size:cover;background-position:center}.hero-overlay{position:relative;background:linear-gradient(90deg,#0f172abf,#0f172a59);padding:28px;display:flex;flex-direction:column;justify-content:center;gap:8px;width:100%}.hero-close{position:absolute;top:12px;right:12px;width:30px;height:30px;border-radius:50%;background:#0006;color:#fff;border:none;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}.hero h1{margin:0;font-size:30px;line-height:1.1;font-weight:800}.hero .accent{color:var(--primary-tint)}.stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.stat-value{font-size:26px;font-weight:800}.stat-label{font-size:13px;color:var(--text-muted);display:flex;align-items:center;justify-content:space-between}.tabs{display:flex;gap:24px;border-bottom:1px solid var(--border);margin:4px 0 16px}.tab{padding:10px 0;font-weight:700;font-size:14px;color:var(--text-muted);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px}.tab.active{color:var(--primary);border-bottom-color:var(--primary)}.post+.post{margin-top:16px}.post-actions{display:flex;gap:28px;padding-top:12px;border-top:1px solid var(--border);margin-top:12px}.post-action{display:inline-flex;align-items:center;gap:6px;color:var(--text-muted);font-weight:600;font-size:13px;cursor:pointer;background:none;border:none}.post-action.liked{color:var(--danger)}.composer textarea{width:100%;border:none;outline:none;resize:none;font-size:14px;font-family:inherit;color:var(--text);background:transparent;min-height:40px}.skill+.skill{margin-top:10px}.skill-head{display:flex;justify-content:space-between;font-size:13px;font-weight:600;margin-bottom:4px}.skill-track{height:8px;border-radius:999px;background:var(--surface-alt);overflow:hidden}.skill-fill{height:8px;border-radius:999px;background:var(--primary)}.detail-row{display:flex;justify-content:space-between;padding:6px 0;font-size:14px}.detail-row .k{color:var(--text-muted)}.detail-row .v{font-weight:700}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a80;display:flex;align-items:center;justify-content:center;z-index:50}.modal{background:var(--surface);border-radius:var(--radius-lg);width:480px;max-width:92vw;max-height:80vh;display:flex;flex-direction:column;overflow:hidden}.modal-head{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid var(--border)}.modal-body{padding:16px;overflow-y:auto;flex:1}.comment-row{display:flex;gap:10px;padding:8px 0}.comment-bubble{background:var(--surface-alt);border-radius:12px;padding:8px 12px;flex:1}.modal-input{display:flex;gap:8px;padding:12px 16px;border-top:1px solid var(--border)}.modal-input input{flex:1;border:1px solid var(--border);border-radius:10px;padding:10px 12px;outline:none;font-size:14px}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.login-card{width:420px;max-width:100%}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:10px;padding:12px 16px;font-weight:700;font-size:14px;cursor:pointer;background:var(--primary);color:#fff;width:100%}.btn.outline{background:var(--surface);color:var(--text);border:1.5px solid var(--border)}.input{width:100%;border:1px solid var(--border);border-radius:10px;padding:11px 12px;font-size:14px;outline:none}.label{font-size:13px;font-weight:700;margin:12px 0 6px;display:block}