:root{--primary-color: #4f46e5;--primary-hover: #4338ca;--text-main: #0f172a;--text-muted: #64748b;--bg-color: #f8fafc;--card-bg: rgba(255, 255, 255, .75);--tag-humor: #ff6b6b;--tag-life: #10b981;--tag-heart: #8b5cf6;--tag-story: #3b82f6}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--bg-color);background-image:radial-gradient(at 0% 0%,rgba(79,70,229,.05) 0px,transparent 50%),radial-gradient(at 100% 100%,rgba(139,92,246,.05) 0px,transparent 50%);color:var(--text-main);min-height:100vh;display:flex;justify-content:center;align-items:center;padding:20px}.container{width:100%;max-width:600px;display:flex;flex-direction:column;gap:15px}.top-nav{display:flex;justify-content:space-between;align-items:center;width:100%}.back-link{color:var(--text-muted);text-decoration:none;font-size:.95rem;font-weight:500;transition:color .2s}.back-link:hover{color:var(--primary-color)}.auth-status-container{display:flex;align-items:center}.user-profile-badge{display:flex;align-items:center;gap:10px;background:#fffc;padding:6px 12px;border-radius:50px;border:1px solid #e2e8f0}.user-email{font-size:.85rem;font-weight:500;color:var(--text-main)}.auth-btn{font-family:inherit;font-size:.8rem;font-weight:600;padding:6px 14px;border-radius:50px;border:1px solid #e2e8f0;background:#fff;cursor:pointer;transition:all .2s ease}.auth-btn:hover{background:#f8fafc;border-color:#cbd5e1}.auth-btn.logout{border-color:#fee2e2;color:#ef4444;background:#fff8f8}.auth-btn.logout:hover{background:#fef2f2}.glass-card{background:var(--card-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:24px;padding:24px;box-shadow:0 10px 40px -10px #00000014,0 4px 6px -2px #0000000a;border:1px solid rgba(255,255,255,.4);display:flex;flex-direction:column;gap:20px}.title{font-size:2.2rem;font-weight:700;letter-spacing:-.03em;background:linear-gradient(135deg,var(--primary-color),#8b5cf6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:5px}.subtitle{font-size:.95rem;color:var(--text-muted)}.board-controls{display:flex;justify-content:space-between;align-items:center;gap:15px;flex-wrap:wrap;border-bottom:1.5px solid #f1f5f9;padding-bottom:15px}.category-tabs{display:flex;gap:8px;overflow-x:auto;padding-bottom:5px;scrollbar-width:none}.category-tabs::-webkit-scrollbar{display:none}.category-tabs .tab-btn{background:#ffffff80;border:1px solid #e2e8f0;padding:8px 16px;border-radius:50px;font-family:inherit;font-size:.85rem;font-weight:600;color:var(--text-muted);cursor:pointer;white-space:nowrap;transition:all .2s ease}.category-tabs .tab-btn:hover{background:#fff;color:var(--text-main);border-color:#cbd5e1}.category-tabs .tab-btn.active{background:var(--primary-color);color:#fff;border-color:var(--primary-color);box-shadow:0 4px 10px #4f46e533}.write-btn{background:var(--primary-color);color:#fff;border:none;padding:10px 18px;border-radius:50px;font-family:inherit;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .2s ease;box-shadow:0 4px 10px #4f46e526;white-space:nowrap}.write-btn:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 6px 14px #4f46e540}.posts-feed{display:flex;flex-direction:column;gap:15px;min-height:250px}.loading-spinner,.empty-state{text-align:center;color:var(--text-muted);padding:40px;font-size:.95rem}.post-card{background:#fff;border-radius:16px;padding:20px;border:1px solid #e2e8f0;display:flex;flex-direction:column;gap:12px;text-align:left;transition:all .3s cubic-bezier(.16,1,.3,1)}.post-card:hover{transform:translateY(-2px);box-shadow:0 12px 20px -8px #0000000d,0 4px 6px -2px #00000005;border-color:#cbd5e1}.post-meta{display:flex;justify-content:space-between;align-items:center}.post-tag{font-size:.75rem;font-weight:700;padding:4px 10px;border-radius:6px;text-transform:uppercase;letter-spacing:.02em}.post-tag.tag-유머{background:#fff0f0;color:var(--tag-humor)}.post-tag.tag-일상{background:#ecfdf5;color:var(--tag-life)}.post-tag.tag-감동{background:#f5f3ff;color:var(--tag-heart)}.post-tag.tag-썰{background:#eff6ff;color:var(--tag-story)}.post-date{font-size:.8rem;color:var(--text-muted)}.post-title{font-size:1.15rem;font-weight:700;color:var(--text-main);line-height:1.4}.post-content{font-size:.95rem;color:#334155;line-height:1.6;white-space:pre-line;word-break:break-word}.post-actions{display:flex;gap:15px;border-top:1px solid #f1f5f9;padding-top:12px;margin-top:5px}.action-btn{background:none;border:none;font-family:inherit;font-size:.85rem;font-weight:600;color:var(--text-muted);cursor:pointer;display:flex;align-items:center;gap:6px;transition:all .2s ease;padding:4px 8px;border-radius:8px}.action-btn:hover{background:#f1f5f9;color:var(--text-main)}.action-btn.liked{color:var(--tag-humor)}.action-btn.liked:hover{background:#fff0f0}.modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:#0f172a66;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);z-index:1000;justify-content:center;align-items:center;padding:20px}.modal.active{display:flex}.modal-content{background:#fff;border-radius:24px;padding:30px;max-width:420px;width:100%;box-shadow:0 25px 50px -12px #00000026;border:1px solid rgba(255,255,255,.8);position:relative;text-align:left;animation:modalSlideUp .3s cubic-bezier(.16,1,.3,1)}@keyframes modalSlideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-close{position:absolute;top:20px;right:20px;font-size:1.5rem;cursor:pointer;color:var(--text-muted);transition:color .2s;line-height:1}.modal-close:hover{color:var(--text-main)}.modal-content h2{font-size:1.4rem;font-weight:700;margin-bottom:20px;letter-spacing:-.02em}.form-group{margin-bottom:18px}.form-group label{display:block;font-size:.85rem;font-weight:600;margin-bottom:6px;color:#475569}.form-group input,.form-group select,.form-group textarea{width:100%;font-family:inherit;font-size:.95rem;padding:12px 16px;border-radius:12px;border:1.5px solid #e2e8f0;background:#fff;transition:all .2s}.form-group textarea{resize:vertical}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 4px #4f46e51a}.submit-btn{width:100%;font-family:inherit;font-weight:600;font-size:.95rem;padding:14px;border-radius:12px;border:none;background:var(--primary-color);color:#fff;cursor:pointer;transition:all .2s}.submit-btn:hover{background:var(--primary-hover);box-shadow:0 10px 15px -3px #4f46e533}.submit-btn:disabled{background:#94a3b8;cursor:not-allowed;box-shadow:none}.auth-tabs{display:flex;border-bottom:2px solid #f1f5f9;margin-bottom:20px;gap:15px}.tab-btn-auth{background:none;border:none;font-family:inherit;font-size:.95rem;font-weight:600;color:var(--text-muted);padding:10px 5px;cursor:pointer;position:relative;transition:color .2s}.tab-btn-auth:hover{color:var(--text-main)}.tab-btn-auth.active{color:var(--primary-color)}.tab-btn-auth.active:after{content:"";position:absolute;bottom:-2px;left:0;width:100%;height:2px;background:var(--primary-color)}.auth-error-msg{color:#ef4444;font-size:.85rem;font-weight:500;margin-bottom:15px;min-height:1.2em}.social-auth-divider{display:flex;align-items:center;text-align:center;margin:20px 0;color:#94a3b8;font-size:.8rem;font-weight:500}.social-auth-divider:before,.social-auth-divider:after{content:"";flex:1;border-bottom:1.5px solid #f1f5f9}.social-auth-divider:not(:empty):before{margin-right:.5em}.social-auth-divider:not(:empty):after{margin-left:.5em}.social-auth-buttons{display:flex;flex-direction:column;gap:10px}.social-btn{width:100%;font-family:inherit;font-size:.9rem;font-weight:600;padding:12px;border-radius:12px;border:1.5px solid transparent;cursor:pointer;display:flex;justify-content:center;align-items:center;gap:8px;transition:all .2s ease}.social-btn.kakao{background-color:#fee500;color:#191919}.social-btn.kakao:hover{background-color:#fada0a}.social-btn.google{background-color:#fff;border-color:#e2e8f0;color:#374151}.social-btn.google:hover{background-color:#f8fafc;border-color:#cbd5e1}.version-label{position:fixed;bottom:20px;left:20px;font-size:.85rem;color:#94a3b8;font-weight:500;z-index:100;pointer-events:none}