@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes inputFocus {
    from {
        transform: scale(1);
    }
    to {
        transform: scale(1.02);
    }
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.container {
    background: rgba(255, 255, 255, 0.95);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 500px;
    animation: slideUp 0.8s cubic-bezier(0.23, 1, 0.32, 1);
    transform-style: preserve-3d;
}

h1 {
    color: #2c3e50;
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2.2em;
    position: relative;
    padding-bottom: 0.5rem;
}

h1::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: #3498db;
    border-radius: 2px;
}

.form-group {
    margin-bottom: 1.8rem;
    position: relative;
}

label {
    display: block;
    margin-bottom: 0.8rem;
    color: #34495e;
    font-weight: 600;
    transform: translateY(25px);
    transition: all 0.3s ease;
    pointer-events: none;
}

input[type="text"],
input[type="number"] {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    background: #f8f9fa;
}

input[type="text"]:focus,
input[type="number"]:focus {
    outline: none;
    border-color: #3498db;
    background: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.2);
    animation: inputFocus 0.3s ease;
}

input[type="submit"] {
    background: linear-gradient(45deg, #3498db, #2980b9);
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: bold;
}

input[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
    background: linear-gradient(45deg, #2980b9, #3498db);
}

.form-group:focus-within label {
    transform: translateY(0);
    color: #3498db;
    font-size: 0.9em;
}

@media (max-width: 480px) {
    .container {
        padding: 1.5rem;
        margin: 1rem;
    }
}

@keyframes success {
    0% { transform: scale(0); opacity: 0; }
    80% { transform: scale(1.1); }
    100% { transform: scale(1); opacity: 1; }
}

.success-message {
    animation: success 0.6s ease;
    color: #2ecc71;
    text-align: center;
    margin-top: 1rem;
    display: none;
}