/* Main Content Area */
.content { 
    flex: 1; 
    overflow-y: auto; 
    padding: 2rem 3rem; 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
}

/* Top Navigation Bar */
.topbar { 
    width: 100%; 
    display: flex; 
    justify-content: space-between; 
    margin-bottom: 2.5rem; 
}

.search-bar { 
    background: rgba(255,255,255,0.05); 
    border: 1px solid rgba(255,255,255,0.1); 
    border-radius: 12px; 
    padding: 0.8rem 1.2rem; 
    display: flex; 
    align-items: center; 
    gap: 0.5rem; 
    width: 400px; 
}

.search-bar input { 
    background: transparent; 
    border: none; 
    outline: none; 
    color: white; 
    width: 100%; 
    font-family: var(--font); 
}

/* Glass Panels & Modals Base */
.glass-panel {
    background: var(--card); backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,0.1); border-radius: 16px;
    padding: 1.2rem; box-shadow: 0 10px 30px -10px rgba(0,0,0,0.5);
}

.modal { 
    display: none; 
    position: fixed; 
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%; 
    background: rgba(0,0,0,0.6); 
    backdrop-filter: blur(5px); 
    z-index: 1000; 
    justify-content: center; 
    align-items: center; 
}

.modal.active { display: flex; }

.modal-content { 
    width: 90%; 
    max-width: 800px; 
    max-height: 85vh; 
    overflow-y: auto; 
    background: var(--bg); 
}

/* UI Utility Components */
.spinner { 
    width: 40px; 
    height: 40px; 
    border: 4px solid rgba(255,255,255,0.1); 
    border-top: 4px solid var(--accent); 
    border-radius: 50%; 
    animation: spin 1s linear infinite; 
}

@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

.primary-btn { 
    background: var(--accent); 
    color: #0f172a; 
    font-weight: 700; 
    border: none; 
    padding: 0.5rem 1.2rem; 
    border-radius: 8px; 
    cursor: pointer; 
    transition: background 0.2s; 
}

.primary-btn:hover { background: var(--accent-hover); }

.action-btn { 
    background: rgba(0,0,0,0.4); 
    border: none; 
    border-radius: 4px; 
    padding: 5px 10px; 
    cursor: pointer; 
    color: white; 
    transition: background 0.2s; 
    font-weight: bold; 
}

.action-btn:hover { background: rgba(184, 59, 94, 0.8); }
.btn-label { display: none; }
.ai-btn:hover { background: var(--ai-accent); color: white; }

/* Memo Footer Metadata Styling */
.memo-metadata-footer {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px dashed rgba(255, 255, 255, 0.1);
    color: var(--muted);
    font-size: 0.85rem;
    opacity: 0.7;
}

.memo-metadata-footer p {
    margin: 5px 0;
}

/* === Composer Category Chips === */
#composerCategoryBar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 15px;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    flex-wrap: wrap;
}

.cat-chip {
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    font-size: 0.8rem;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--text-dim);
    display: flex;
    align-items: center;
    gap: 6px;
    user-select: none;
}

.cat-chip:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent-light);
    transform: translateY(-1px);
    color: white;
}

.cat-chip.active {
    background: var(--accent-light);
    color: white;
    border-color: var(--accent-light);
    box-shadow: 0 4px 12px rgba(56, 189, 248, 0.3);
    font-weight: 600;
}

.cat-chip.done-chip.active {
    background: #10b981; /* Success Green */
    border-color: #10b981;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

/* 💡 외부 카테고리 강조칩 (핀에 없지만 지정된 경우) */
.cat-chip.external-active {
    border: 1px dashed #ff4d4d !important;
    background: rgba(255, 77, 77, 0.05);
    color: #ff4d4d !important;
}

.cat-chip.external-active:hover {
    background: rgba(255, 77, 77, 0.12);
}

.cat-chip kbd {
    font-size: 10px;
    opacity: 0.6;
    margin-left: 4px;
    background: rgba(0, 0, 0, 0.2);
    padding: 1px 4px;
    border-radius: 3px;
}

/* Category Management List */
.cat-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 14px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    margin-bottom: 6px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.cat-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-1px);
}

.cat-item .cat-name {
    flex: 1;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
}

.cat-actions {
    display: flex;
    gap: 15px;
}

.cat-action-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    padding: 2px;
    opacity: 0.4;
    transition: all 0.2s;
}

.cat-action-btn:hover {
    opacity: 1;
    transform: scale(1.2);
}

.cat-action-btn.pin.active {
    opacity: 1;
    color: var(--accent);
    filter: drop-shadow(0 0 5px var(--accent));
}

.cat-action-btn.delete:hover {
    color: #f87171;
}

/* Custom Scrollbar for Category List */
#categoryListContainer::-webkit-scrollbar {
    width: 6px;
}
#categoryListContainer::-webkit-scrollbar-track {
    background: transparent;
}
#categoryListContainer::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}
#categoryListContainer::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}