body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, rgba(133, 63, 255, 0.6), rgba(0, 200, 100, 0.5));
    background-size: 300% 300%;
    animation: gradientMove 12s ease infinite;
    color: #222;
}

@keyframes gradientMove {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.outer-container {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
    padding: 60px 20px;
}

.inner-container {
    background-color: rgba(255, 255, 255, 0.93);
    backdrop-filter: blur(6px);
    border-radius: 16px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    max-width: 950px;
    width: 100%;
    padding: 50px;
    animation: fadeIn 0.6s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

h1 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 1.9rem;
    line-height: 1.4;
    color: #1a1a40;
    letter-spacing: 0.3px;
}

h2 {
    color: #3a3a7a;
    font-size: 1.25rem;
    border-left: 5px solid #6a5acd;
    padding-left: 12px;
    margin-top: 45px;
    margin-bottom: 10px;
    font-weight: 600;
}

label {
    display: block;
    font-weight: 600;
    margin-top: 18px;
    font-size: 15px;
    color: #333;
}

textarea {
    width: 100%;
    min-height: 90px;
    resize: vertical;
    padding: 12px;
    margin-top: 6px;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 15px;
    background-color: #fafafa;
    transition: border 0.3s ease, box-shadow 0.3s ease;
}

textarea:focus {
    border-color: #7c4dff;
    box-shadow: 0 0 0 2px rgba(124, 77, 255, 0.2);
    outline: none;
    background-color: #fff;
}

button {
    display: block;
    margin: 50px auto 0;
    background: linear-gradient(90deg, #7c4dff, #00c46a);
    color: white;
    border: none;
    border-radius: 10px;
    padding: 14px 40px;
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.3s ease;
}

button:hover {
    transform: scale(1.04);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.alert {
    background-color: #e6ffed;
    color: #216e39;
    padding: 12px 18px;
    border-radius: 8px;
    margin-bottom: 25px;
    text-align: center;
    font-weight: 500;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.footer-note {
    margin-top: 40px;
    padding: 20px;
    background-color: rgba(240, 240, 240, 0.8);
    border-radius: 8px;
    text-align: center;
    font-size: 15px;
    color: #333;
    line-height: 1.5;
}