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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #0a0a0a;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    background: #1a1a2e;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(138, 43, 226, 0.3);
    padding: 40px;
    max-width: 600px;
    width: 100%;
    border: 2px solid #8a2be2;
}

h1 {
    color: #00ff88;
    margin-bottom: 30px;
    text-align: center;
    font-size: 32px;
    font-weight: 600;
    letter-spacing: 2px;
    text-shadow: 0 0 10px #00ff88;
}

label, p {
    display: block;
    margin-top: 12px;
    margin-bottom: 6px;
    color: #00ffff;
    font-weight: 500;
    font-size: 14px;
}

input[type="text"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 10px 12px;
    border: 2px solid #8a2be2;
    border-radius: 6px;
    font-size: 14px;
    margin-bottom: 12px;
    background: #0f0f1e;
    color: #00ffff;
    transition: border-color 0.3s, box-shadow 0.3s;
    font-family: inherit;
}

input[type="text"]:focus,
input[type="number"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: #00ff88;
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.5);
}

fieldset {
    border: 2px solid #8a2be2;
    border-radius: 6px;
    padding: 15px;
    margin-top: 12px;
    margin-bottom: 12px;
    background: #0f0f1e;
}

legend {
    color: #00ff88;
    font-weight: 500;
    font-size: 14px;
    padding: 0 8px;
}

input[type="checkbox"] {
    margin-right: 8px;
    cursor: pointer;
    width: 16px;
    height: 16px;
    accent-color: #00ff88;
    appearance: none;
    -webkit-appearance: none;
    border: 2px solid #8a2be2;
    border-radius: 3px;
    background: #0f0f1e;
    transition: all 0.3s;
    flex-shrink: 0;
}

input[type="checkbox"]:hover {
    border-color: #00ff88;
    box-shadow: 0 0 8px rgba(0, 255, 136, 0.5);
}

input[type="checkbox"]:checked {
    background: linear-gradient(135deg, #8a2be2 0%, #00ff88 100%);
    border-color: #00ff88;
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.6);
    position: relative;
}

input[type="checkbox"]:checked::after {
    content: "✓";
    color: #ffffff;
    font-size: 12px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.checkbox-group {
    display: flex;
    gap: 15px;
    flex-wrap: nowrap;
    margin-top: 8px;
    margin-bottom: 8px;
    align-items: center;
}

.checkbox-group label {
    display: inline-flex;
    align-items: center;
    margin-right: 0;
    margin-top: 0;
    margin-bottom: 0;
    font-weight: 400;
    cursor: pointer;
    font-size: 14px;
    color: #00ffff;
    white-space: nowrap;
}

#btn {
    padding: 18px 40px;
    background: linear-gradient(135deg, #8a2be2 0%, #ff006e 100%);
    color: #ffffff;
    border: 2px solid #00ff88;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 0 20px rgba(138, 43, 226, 0.5);
    display: block;
    margin-left: auto;
    margin-right: auto;
}

#div {
    background: linear-gradient(135deg, #1a1a2e 0%, #0f0f1e 100%);
    border: 2px solid #00ff88;
    border-left: 4px solid #ff006e;
    padding: 20px;
    margin-top: 20px;
    border-radius: 8px;
    color: #00ff88;
    font-size: 16px;
    font-weight: 500;
    text-align: center;
    min-height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.3);
    text-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}