src/static/css/watchlist.css

    /* --- Layout Container --- */
    .container { 
        width: 95%; 
        max-width: 1200px; 
        margin: 20px auto; 
    }
    
    /* --- Controls Header --- */
    .controls-bar {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 25px;
        padding: 0 10px;
    }

    /* --- Bubble Canvas Logic --- */
    .bubble-container {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
        padding-bottom: 60px;
    }

    /* --- Bubble Component Architecture --- */
    .bubble {
        border-radius: 50%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        cursor: pointer;
        transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        width: 105px;
        height: 105px;
        position: relative;
        overflow: hidden; 
    }

    .bubble:hover {
        transform: scale(1.1);
        z-index: 10;
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    }

    .b-sym { 
    font-weight: 800; 
    font-size: 0.95rem; 
    line-height: 1; 
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
    width: 85%;
    display: block;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    }

    .b-chg { 
        font-size: 0.7rem; 
        font-family: 'JetBrains Mono', monospace; 
        margin-top: 4px; 
    }
  
    /* Bullish State */
    .bubble.pos { 
        border: 1px solid var(--accent-green);
        background: var(--bg-card);
    }
    .bubble.pos .b-sym, .bubble.pos .b-chg { color: var(--accent-green); }

    /* Bearish State */
    .bubble.neg { 
        border: 1px solid var(--accent-red);
        background: rgba(239, 68, 68, 0.1);
    }
    .bubble.neg .b-sym, .bubble.neg .b-chg { color: var(--accent-red); }
    
    /* Neutral State */
    .bubble.flat { 
        border: 1px solid var(--border);
        background: var(--bg-card);
        color: var(--text-dim);
    }

    /* --- Empty State --- */
    .wl-empty {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        color: var(--text-dim);
        text-align: center;
        padding: 80px 20px;
        width: 100%;
    }
    .wl-empty p {
        margin: 16px 0 8px;
        font-size: 0.95rem;
        line-height: 1.6;
        max-width: 280px;
    }
    .wl-empty a {
        color: var(--accent-green);
        font-weight: 600;
        font-size: 0.9rem;
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 8px 16px;
        border-radius: 8px;
        transition: background 0.2s;
    }
    .wl-empty a:hover {
        background: rgba(16, 185, 129, 0.1);
    }

    /* --- Mobile --- */
    @media (max-width: 480px) {
        .bubble-container { 
            gap: 8px; 
            padding: 10px 5px; 
        }
        
        .bubble { 
            width: 78px; 
            height: 78px; 
        } 
        
        .b-sym { font-size: 0.8rem; }
        .b-chg { font-size: 0.65rem; }
        
        .detail-card { 
            width: 100% !important; 
            max-width: 320px; 
            padding: 20px; 
            border-radius: 16px;
        }
        
        .metric-grid {
            gap: 8px; 
            margin: 15px 0;
        }

        .m-box {
            padding: 8px;
        }

        .m-val {
            font-size: 0.8rem;
        }

        .btn-act {
            padding: 10px;
            font-size: 0.75rem;
        }
    }

    /* --- Modal Overlay Logic --- */
    .detail-overlay {
        display: none;
        position: fixed; 
        top: 0; left: 0; right: 0; bottom: 0;
        background: rgba(0, 0, 0, 0.85);
        z-index: 2000;
        justify-content: center;
        align-items: center;
        padding: 20px;
    }
    
    .detail-card {
        background: #151a1e;
        border: 1px solid var(--border);
        border-radius: 16px;
        padding: 24px;
        max-width: 340px;
        width: 100%;
        box-sizing: border-box;
        position: relative;
        text-align: center;
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
    }
    
    .metric-grid { 
        display: grid; 
        grid-template-columns: 1fr 1fr; 
        gap: 12px; 
        margin: 20px 0; 
    }
    
    .m-box { 
        background: #0b0e11; 
        padding: 10px; 
        border-radius: 8px; 
        border: 1px solid var(--border); 
    }

    .m-lbl { 
        font-size: 0.7rem; 
        color: var(--text-dim); 
        display: block; 
        text-transform: uppercase; 
        font-weight: 600; 
        margin-bottom: 4px; 
    }

    .m-val { 
        font-size: 0.9rem; 
        font-weight: 700; 
        color: #fff; 
    }

    /* Action Buttons */
    .action-group { display: flex; gap: 10px; margin-top: 20px; }
    
    .btn-act { 
        flex: 1; 
        padding: 12px; 
        border-radius: 10px; 
        font-weight: 800; 
        cursor: pointer; 
        border: none; 
        font-size: 0.8rem; 
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 6px;
        transition: all 0.2s ease;
        font-family: 'Inter', sans-serif;
    }
    .btn-act:disabled {
        opacity: 0.4;
        cursor: not-allowed;
        transform: none !important;
    }

    .btn-refresh { background: var(--bg-input); color: #fff; border: 1px solid var(--border); }
    .btn-refresh:hover:not(:disabled) { background: rgba(255,255,255,0.08); }
    .btn-dive { background: var(--accent-green); color: #000; }
    .btn-dive:hover:not(:disabled) { background: #059669; transform: translateY(-1px); }
    .btn-del { background: rgba(239, 68, 68, 0.15); color: #ef4444; }
    .btn-del:hover:not(:disabled) { background: rgba(239, 68, 68, 0.25); transform: translateY(-1px); }

    @keyframes spin {
        to { transform: rotate(360deg); }
    }