app/static/style.css

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Segoe UI", Roboto, sans-serif;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #1e293b, #0f172a);
    color: #e2e8f0;
}

.container {
    width: 100%;
    max-width: 650px;
    padding: 30px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

h1 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 5px;
    background: linear-gradient(90deg, #fb923c, #f97316);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h3 {
    text-align: center;
    margin-bottom: 30px;
    font-weight: 400;
    color: #cbd5f5;
}

form {
    padding: 5px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

textarea {
    height: 160px;
    padding: 12px;
    border-radius: 10px;
    border: none;
    outline: none;
    font-size: 15px;
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    resize: none;
    transition: 0.3s ease;
}

textarea:focus {
    box-shadow: 0 0 0 2px #fb923c;
}

button {
    padding: 12px;
    border-radius: 10px;
    border: none;
    font-size: 16px;
    cursor: pointer;
    background: linear-gradient(135deg, #fb923c, #f97316);
    color: white;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(251, 146, 60, 0.4);
}

button:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 6px 25px rgba(249, 115, 22, 0.6);
}

#summary-output {
    margin-top: 20px;
    padding: 15px;
    border-radius: 10px;
    background: rgba(251, 146, 60, 0.08);
    border: 1px solid rgba(251, 146, 60, 0.3);
    backdrop-filter: blur(6px);
}

#summary-heading {
    margin-bottom: 10px;
    font-weight: 600;
    color: #fb923c;
}