* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    overflow-x: hidden;
}
.img-header {
    position: absolute;
    margin: auto;
    top: 10;
    left: 0;
    right: 0;
    bottom: 0;
}

.container {
    background: linear-gradient(50deg, #ffffffbd 0%, #ac47ff27 70%);
    background-blend-mode:overlay;
    backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: 0 36px 40px rgba(0, 0, 0, 0.226);
    padding: 36px;
    width: 100%;
    max-width: 860px;
    margin-top: 120px;
    margin-bottom: 100px;
}

.logo-container {
    text-align: center;
    margin-bottom: 600px;
    position: absolute;
    top: 48px;
    left: 50%;
    bottom: 12px;
    transform: translateX(-50%);
    transform: translateY(-20%);
}

.logo {
    width: 900px;
    height: 900px;
    opacity: 20%;
    
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

.header {
    color: #ffffff;
    text-align: center;
    margin-bottom: 30px;
}
.header h1 {
    color: #ffffff;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 8px;
}
.header p {
    color: #e6f0ff;
    font-size: 18px;
}
.form-group {
    margin-bottom: 24px;
}
.form-group label {
    display: block;
    color: #3940a8;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 16px;
}
.form-group input,
.form-group select {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: white;
    color: #4a5568;
}
.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    transform: translateY(-1px);
}
.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 30px;
}
.checkbox-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin: 0;
    cursor: pointer;
    accent-color: #1f359b;
}
.checkbox-group label {
    color: #3940a8;
    font-size: 16px;
    font-weight: 600px;
    line-height: 1.5;
    cursor: pointer;
    margin: 0;
}
.btn-group {
    display: flex;
    gap: 12px;
    margin-top: 30px;
}
.btn {
    flex: 1;
    padding: 16px 24px;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}
.btn-primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}
.btn-secondary {
    background: transparent;
    color: #ffffff;
    border: 2px solid #ffffff4f;
}
.btn-secondary:hover {
    transform: translateY(-4px);
    color: rgb(32, 25, 88);
    backdrop-filter: blur(10px);
    background: linear-gradient(135deg, #c7d1ff67 0%, #c890ffa8 100%);
    border-color: #cbd5e01f;
}
.error-message {
    background-blend-mode:overlay;
    backdrop-filter: blur(10px);
    display: none;
    background: linear-gradient(135deg, #63cbff8a 0%, #eff0a9b7 100%);
    color: white;
    padding: 16px;
    border-radius: 12px;
    margin-bottom: 20px;
    margin-top: 20px;
    text-align: center;
    font-weight: 600;
    animation: slideIn 0.5s ease-out;
}

.version-container {
    display: flex;
    align-items:flex-end;
}

.version-pill {
    display: inline-flex;
    padding: 3px 8px;
    margin-top: 30px;
    border-radius: 99px;
    background-color: rgba(66, 66, 66, 0.44);
    color: white;
    font-size: 10px;
    white-space: nowrap;
}


@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@media (max-width: 600px) {
    .container {
        padding: 30px 20px;
        margin: 10px;
    }
    .btn-group {
        flex-direction: column;
    }
    .header h1 {
        font-size: 24px;
    }
}
.form-group input:hover,
.form-group select:hover {
    border-color: #cbd5e0;
}
.form-group input::placeholder {
    color: #a0aec0;
    font-style: italic;
}
.form-group select:invalid {
    color: #a0aec0;
}
.form-group select:valid {
    color: #4a5568;
}