body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(-45deg, #667eea, #764ba2, #f093fb, #f5576c);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    color: white;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

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

.container {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.2);
    max-width: 600px;
    width: 100%;
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

h1, h2 {
    text-align: center;
}

form {
    display: flex;
    flex-direction: column;
}

input, select, button {
    margin: 10px 0;
    padding: 12px 15px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s ease;
}

.password-container {
    position: relative;
}

.toggle-password {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    font-size: 18px;
}

textarea {
    resize: vertical;
    min-height: 80px;
}

input, select {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

input:focus, select:focus {
    outline: none;
    border-color: #f093fb;
    box-shadow: 0 0 10px rgba(240, 147, 251, 0.5);
}

button {
    background: linear-gradient(45deg, #9c27b0, #ba68c8);
    color: white;
    cursor: pointer;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
}

button:hover {
    background: linear-gradient(45deg, #7b1fa2, #9c27b0);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(156, 39, 176, 0.4);
}

.error {
    color: #ff5722;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 8px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.4);
}

.modal-content {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    margin: 10% auto;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    width: 90%;
    max-width: 500px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.4s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.8) translateY(-50px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

footer {
    text-align: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    margin-top: 20px;
    border-radius: 10px;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .container {
        margin: 10px;
        padding: 20px;
        max-width: none;
    }

    h1 {
        font-size: 24px;
    }

    h2 {
        font-size: 20px;
    }

    input, select, button {
        font-size: 16px; /* Prevent zoom on iOS */
        padding: 10px;
    }

    .modal-content {
        width: 95%;
        margin: 5% auto;
        padding: 20px;
    }

    footer {
        padding: 15px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    .container {
        padding: 15px;
    }

    input, select, button {
        width: 100%;
        box-sizing: border-box;
    }

    .modal-content {
        width: 98%;
        padding: 15px;
    }
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close:hover {
    color: black;
    cursor: pointer;
}

.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip.show::after {
    content: "Copied!";
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: #333;
    color: white;
    padding: 5px;
    border-radius: 3px;
    white-space: nowrap;
    opacity: 1;
    visibility: visible;
}