src/streamlit_app.py

import streamlit as st
import streamlit.components.v1 as components

# 頁面配置
st.set_page_config(layout="wide", page_title="AlterEgo LinkedIn Lab")

# 1. CSS 樣式 (絕對靠左，防止誤判)
css_styles = """
<style>
/* --- 全局設定 --- */
html, body, .stApp {
    height: 100vh;
    overflow: hidden !important;
    margin: 0;
}
.stApp {
    background: 
        radial-gradient(circle at 20% 30%, rgba(70, 130, 255, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(255, 20, 147, 0.2) 0%, transparent 50%),
        radial-gradient(circle at center, #4b1a8a 0%, #1a0b2e 60%, #000000 100%);
}
.block-container { padding: 0 !important; max-width: 100% !important; }
header, footer, .stDeployButton { display: none !important; }

/* --- 佈局外殼 --- */
.shell {
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    display: flex;
    flex-direction: column;
}

/* --- Header & Footer --- */
.header, .footer {
    flex: 0 0 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(15px);
    z-index: 100;
}
.header { border-bottom: 1px solid rgba(255, 255, 255, 0.15); }
.footer { 
    border-top: 1px solid rgba(255, 255, 255, 0.15); 
    position: fixed; bottom: 0; left: 0; width: 100%;
}
.header-title { color: white; font-weight: bold; font-size: 1.1rem; }
.step-indicator { font-size: 0.7rem; color: #45B0FF; margin-top: 2px; }

/* --- Main Content --- */
.main-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-bottom: 70px;
}

.linkedin-box {
    width: 800px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 0 60px rgba(0, 0, 0, 0.6);
    position: relative;
}

/* User Info */
.user-info { display: flex; align-items: center; margin-bottom: 20px; }
.avatar {
    width: 64px; height: 64px;
    border-radius: 50%;
    background: #555;
    border: 3px solid #FF69B4;
    box-shadow: 0 0 15px #FF69B4;
    margin-right: 18px;
}
.name-text { color: white; font-weight: 600; font-size: 1.3rem; }
.anyone-badge {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 20px;
    padding: 4px 12px;
    font-size: 0.85rem;
    color: #ccc;
    display: inline-block;
    margin-top: 6px;
}

/* Magic Button */
.alterego-magic-btn {
    position: absolute;
    top: 55%; left: 50%;
    transform: translate(-50%, -50%);
    background: linear-gradient(135deg, #45B0FF, #FF69B4);
    border: none;
    border-radius: 35px;
    padding: 15px 35px;
    color: white;
    font-weight: 900;
    font-size: 1.2rem;
    box-shadow: 0 0 25px rgba(69, 176, 255, 0.8);
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    z-index: 10;
    white-space: nowrap;
    animation: pulse 3s infinite ease-in-out;
}
@keyframes pulse {
    0% { box-shadow: 0 0 20px rgba(69, 176, 255, 0.8); }
    50% { box-shadow: 0 0 40px rgba(255, 105, 180, 0.8); transform: translate(-50%, -50%) scale(1.05); }
    100% { box-shadow: 0 0 20px rgba(69, 176, 255, 0.8); }
}

/* Text Area */
.input-placeholder {
    height: 180px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 1.5rem;
    padding-top: 10px;
}

/* Smiley Icon */
.smiley-icon {
    font-size: 1.8rem;
    color: #45B0FF;
    margin-bottom: 15px;
    cursor: pointer;
    width: fit-content;
}

/* Bottom Icons Row */
.bottom-row {
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    border-top: 1px solid rgba(255,255,255,0.1); 
    padding-top: 20px;
}
.icon-group {
    display: flex;
    gap: 30px;
    font-size: 1.6rem;
    color: #45B0FF;
}

/* Post Actions (Clock + Button) */
.post-actions {
    display: flex;
    align-items: center;
    gap: 15px; /* 時鐘與按鈕的距離 */
}
.schedule-icon {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.6);
    cursor: pointer;
}

/* Hide native buttons */
div[data-testid="stButton"] { display: none !important; }
.shell div[data-testid="stButton"] { display: inline-block !important; }
</style>
"""
st.markdown(css_styles, unsafe_allow_html=True)

# 2. HTML 骨架 (絕對靠左)
html_structure = f"""
<div class="shell">
<div class="header">
<div id="slot-back"></div>
<div style="text-align: center;">
<div class="header-title">新 LinkedIn 貼文</div>
<div class="step-indicator">STEP 2/3 : 專業賦能</div>
</div>
<div id="slot-next"></div>
</div>

<div class="main-content">
<div class="linkedin-box">
<div class="user-info">
<div class="avatar"></div>
<div>
<div class="name-text">Judy Wang</div>
<div class="anyone-badge">🌐 Anyone</div>
</div>
</div>

<div class="input-placeholder">分享您的意見想法......</div>

<div class="alterego-magic-btn">
<span>🤖</span> ✨ AlterEgo AI 智能潤飾
</div>

<div class="smiley-icon">🙂</div>

<div class="bottom-row">
<div class="icon-group">
<span>🖼️</span> <span>🗓️</span> <span>🏵️</span> <span>➕</span> 
</div>

<div class="post-actions">
<span class="schedule-icon">🕒</span>
<div id="slot-post"></div>
</div>

</div>

</div>
</div>

<div class="footer"></div>
</div>
"""
st.markdown(html_structure, unsafe_allow_html=True)

# 3. Streamlit 按鈕
st.button("⬅ 返回上一步", key="btn_back")
st.button("下一步", key="btn_next")
# 注意：這裡的按鈕文字改成了 "發表"
st.button("發表", key="btn_post")

# 4. JS 搬運工
components.html("""
<script>
    function move(btnText, targetId) {
        const buttons = Array.from(window.parent.document.querySelectorAll('button'));
        const targetBtn = buttons.find(b => b.innerText.includes(btnText));
        const targetSlot = window.parent.document.getElementById(targetId);
        if (targetBtn && targetSlot) {
            const wrapper = targetBtn.closest('div[data-testid="stButton"]');
            if (wrapper) targetSlot.appendChild(wrapper);
        }
    }
    setTimeout(() => {
        move("返回上一步", "slot-back");
        move("下一步", "slot-next");
        move("發表", "slot-post"); // JS 也要改成抓取 "發表"
    }, 150);
</script>
""", height=0)