:root{--bg-color:#f8fafc;--card-bg:#fff;--primary-color:#2563eb;--primary-hover:#1d4ed8;--danger-color:#ef4444;--danger-hover:#dc2626;--text-primary:#0f172a;--text-secondary:#64748b;--border-color:#e2e8f0;--focus-ring:#2563eb33;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #00000012, 0 2px 4px -2px #0000000d;--radius-md:8px;--radius-lg:12px}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.5}.container{max-width:680px;margin:0 auto;padding:24px 16px}.header{background-color:var(--card-bg);border-bottom:1px solid var(--border-color);z-index:10;box-shadow:var(--shadow-sm);position:sticky;top:0}.header-content{justify-content:space-between;align-items:center;max-width:680px;margin:0 auto;padding:14px 16px;display:flex}.logo{color:var(--text-primary);align-items:center;gap:8px;font-size:1.25rem;font-weight:700;text-decoration:none;display:flex}.nav-links{align-items:center;gap:12px;display:flex}.user-badge{color:var(--text-secondary);background:var(--bg-color);border:1px solid var(--border-color);border-radius:20px;padding:4px 10px;font-size:.85rem}.btn{border-radius:var(--radius-md);cursor:pointer;border:none;justify-content:center;align-items:center;padding:8px 16px;font-size:.9rem;font-weight:600;text-decoration:none;transition:all .15s ease-in-out;display:inline-flex}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover{background-color:var(--primary-hover)}.btn-danger{background-color:var(--danger-color);color:#fff}.btn-danger:hover{background-color:var(--danger-hover)}.btn-outline{color:var(--text-secondary);border:1px solid var(--border-color);background-color:#0000}.btn-outline:hover{background-color:var(--bg-color);color:var(--text-primary)}.card{background-color:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);margin-bottom:20px;padding:24px}.post-card{background-color:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--radius-lg);margin-bottom:16px;padding:20px;transition:transform .15s,box-shadow .15s}.post-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.post-title{color:var(--text-primary);margin-bottom:8px;font-size:1.15rem;font-weight:600}.post-content{color:var(--text-secondary);white-space:pre-line;margin-bottom:16px;font-size:.95rem}.post-meta{color:var(--text-secondary);border-top:1px dashed var(--border-color);justify-content:space-between;padding-top:12px;font-size:.8rem;display:flex}.form-group{margin-bottom:18px}.form-label{color:var(--text-primary);margin-bottom:6px;font-size:.875rem;font-weight:600;display:block}.form-input,.form-textarea{border:1px solid var(--border-color);border-radius:var(--radius-md);width:100%;color:var(--text-primary);background-color:#fff;outline:none;padding:10px 14px;font-size:.95rem;transition:border-color .15s,box-shadow .15s}.form-input:focus,.form-textarea:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px var(--focus-ring)}.form-actions{justify-content:flex-end;gap:10px;margin-top:24px;display:flex}.toast-container{z-index:9999;pointer-events:none;flex-direction:column;align-items:center;gap:10px;width:fit-content;max-width:90vw;margin:0 auto;padding:0 16px;display:flex;position:fixed;top:24px;left:0;right:0}.toast{pointer-events:auto;color:#fff;cursor:pointer;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background-color:#0f172a;border:1px solid #ffffff1f;border-radius:50px;align-items:center;gap:10px;padding:12px 20px;font-size:.92rem;font-weight:600;transition:transform .2s,opacity .2s;animation:.35s cubic-bezier(.175,.885,.32,1.275) toastBounceIn,.4s 3.6s forwards toastFadeOut;display:inline-flex;box-shadow:0 10px 25px -5px #0000004d,0 8px 10px -6px #0003}.toast:hover{transform:scale(1.03)}.toast-icon{border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:22px;height:22px;font-size:.8rem;font-weight:800;display:flex}.toast-message{white-space:nowrap;line-height:1.4}.toast-success{border-color:#10b98180}.toast-success .toast-icon{color:#fff;background-color:#10b981}.toast-error{border-color:#ef444480}.toast-error .toast-icon{color:#fff;background-color:#ef4444}.toast-info{border-color:#2563eb80}.toast-info .toast-icon{color:#fff;background-color:#2563eb}@keyframes toastBounceIn{0%{opacity:0;transform:translateY(-25px)scale(.9)}to{opacity:1;transform:translateY(0)scale(1)}}@keyframes toastFadeOut{0%{opacity:1;transform:translateY(0)scale(1)}to{opacity:0;transform:translateY(-10px)scale(.95)}}