styles.py

import streamlit as st

def get_theme_colors(dark_mode: bool) -> dict:
    """Return a color palette based on dark mode preference."""
    return {
        "BG": "#0f1620" if dark_mode else "#f5f5f5",
        "PANEL_BG": "#1c2330" if dark_mode else "#ffffff",
        "TEXT": "#e3e8f1" if dark_mode else "#1a1a1a",
        "ACCENT": "#ff5252",
        "BORDER": "#2a3240" if dark_mode else "#dddddd",
        "SHADOW": "rgba(0,0,0,0.3)" if dark_mode else "rgba(0,0,0,0.1)",
        "ACE_THEME": "monokai" if dark_mode else "chrome",
    }

def inject_global_css(colors: dict) -> None:
    """Inject global styling overrides into the Streamlit app based on theme colors."""
    st.markdown(f"""
    <style>
      .stApp {{
        background-color: {colors["BG"]};
        color: {colors["TEXT"]};
      }}
      [data-testid="stSidebar"] {{
        background-color: {colors["PANEL_BG"]} !important;
      }}
      .ace_editor, .ace_scroller {{
        background: {colors["PANEL_BG"]} !important;
        box-shadow: 0 4px 8px {colors["SHADOW"]} !important;
        border-radius: 8px !important;
      }}
      textarea, input, .stTextArea textarea {{
        background: {colors["PANEL_BG"]} !important;
        color: {colors["TEXT"]} !important;
        border: 1px solid {colors["BORDER"]} !important;
        border-radius: 4px !important;
      }}
      button, .stDownloadButton > button {{
        background-color: {colors["ACCENT"]} !important;
        color: #fff !important;
        border-radius: 6px !important;
        transition: transform 0.1s;
      }}
      button:hover {{
        transform: scale(1.02) !important;
      }}
      .chat-container {{
        background: {colors["PANEL_BG"]} !important;
        border: 1px solid {colors["BORDER"]} !important;
        border-radius: 8px !important;
        padding: 1rem;
        max-height: 480px;
        overflow-y: auto;
      }}
      .chat-message {{
        margin-bottom: 1rem;
        padding: 0.75rem 1rem;
        border-radius: 12px;
      }}
      .user-message {{
        background: rgba(100,149,237,0.2);
        align-self: flex-end;
      }}
      .bot-message {{
        background: rgba(200,200,200,0.2);
        align-self: flex-start;
      }}
      pre code {{
        display: block;
        padding: 0.5rem;
        background: rgba(0,0,0,0.1);
        border-radius: 4px;
        overflow-x: auto;
      }}
      label[data-testid="stMarkdownContainer"] > div > div {{
        color: {colors["TEXT"]} !important;
      }}
    </style>
    """, unsafe_allow_html=True)