import gradio as gr
import math

def emi_calculator(principal, rate, time):
    try:
        principal = float(principal)
        rate = float(rate)
        time = float(time)

        if principal <= 0 or rate <= 0 or time <= 0:
            return "❌ Please enter positive values only."

        rate = rate / (12 * 100)
        time = time * 12

        emi = (principal * rate * pow(1 + rate, time)) / (pow(1 + rate, time) - 1)
        return f"✅ Your Monthly EMI is: ₹{round(emi, 2)}"
    except:
        return "⚠️ Please enter valid numeric values."

# 🌸 New background with soft blur-glass style card
custom_css = """
body {
    background: linear-gradient(135deg, #fce4ec, #f8bbd0);
    background-attachment: fixed;
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    padding: 0;
}

h1, h3 {
    color: #ad1457;
    text-align: center;
    margin-top: 10px;
}

.gradio-container {
    padding: 2rem;
}

.card {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(12px);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
    max-width: 700px;
    margin: 0 auto;
}

textarea {
    background-color: #fff0f5 !important;
    border: 1px solid #f48fb1 !important;
    border-radius: 10px !important;
}

.gr-button {
    background-color: #ec407a !important;
    color: white !important;
    font-weight: bold !important;
    border-radius: 10px !important;
    padding: 0.75em 1.5em !important;
}
"""

with gr.Blocks(css=custom_css, theme=gr.themes.Soft(primary_hue="pink")) as demo:
    gr.Markdown("""
    <div class='card'>
        <h1>🌸 EMI Calculator 🌸</h1>
        <h3>Enter your details to calculate your monthly loan payments 💸</h3>
    """)

    with gr.Row():
        principal = gr.Textbox(label="🏦 Loan Amount (₹)", placeholder="e.g., 500000")
        rate = gr.Textbox(label="📈 Annual Interest Rate (%)", placeholder="e.g., 7.5")
        time = gr.Textbox(label="⏳ Loan Duration (Years)", placeholder="e.g., 10")

    output = gr.Textbox(label="📄 Result", max_lines=1)

    gr.Button("Calculate EMI").click(fn=emi_calculator, inputs=[principal, rate, time], outputs=output)

    gr.Markdown("</div>")  # closing .card
demo.launch(share=True)