/* Root Variables */
:root {
    --primary-blue: #205CFF;
    --dark-bg: #161F33;
    --darker-bg: #0E182C;
    --light-blue: #ADE5FF;
    --cyan: rgba(0, 245, 255, 0.51);
    --white: #ffffff;
    --black: #000000;
}

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

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--dark-bg);
    color: var(--white);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Main Section */
.main-section {
    flex: 1;
    padding: 40px 0 60px;
    display: flex;
    align-items: center;
}

/* Typography */
.sub-heading {
    font-size: 18px;
    color: var(--primary-blue);
    text-transform: uppercase;
    letter-spacing: 2px;
    line-height: 2em;
    font-weight: 400;
    margin-bottom: 10px;
}

.main-heading {
    font-size: 48px;
    color: var(--white);
    font-weight: 700;
    line-height: 1.2em;
    margin-bottom: 0;
    padding-top: 10px;
}

/* Features Box */
.features-box {
    background-color: var(--darker-bg);
    border-radius: 10px;
    padding: 30px 40px;
    margin: 10px 40px;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 20px;
    padding: 10px 20px;
}

.feature-list li:last-child {
    margin-bottom: 0;
}

.feature-list i {
    color: var(--primary-blue);
    font-size: 20px;
    margin-right: 15px;
    margin-top: 2px;
    flex-shrink: 0;
}

.feature-list p {
    color: var(--light-blue);
    font-size: 20px;
    line-height: 1.5em;
    margin: 0;
}

/* CTA Button */
.btn-cta {
    background-color: var(--primary-blue);
    color: var(--white);
    font-size: 18px;
    font-weight: 700;
    padding: 15px 40px;
    border: 3px solid transparent;
    border-radius: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(32, 92, 255, 0.3);
}

.btn-cta:hover {
    background-color: #1a4dd4;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(32, 92, 255, 0.4);
}

/* Footer */
.footer-section {
    padding: 15px 0;
    background-color: var(--dark-bg);
}

.footer-text {
    color: var(--cyan);
    font-size: 12px;
    margin: 0;
}

.footer-text a {
    color: var(--cyan);
    text-decoration: none;
}

.footer-text a:hover {
    text-decoration: underline;
}

/* Modal Styles */
.modal-content {
    background-color: var(--black);
    border: 10px solid #cbd5e0;
    border-radius: 2px;
    color: var(--white);
}

.modal-header {
    border-bottom: none;
    padding: 20px 20px 10px;
}

.modal-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--white);
    text-align: center;
    width: 100%;
}

.btn-close-white {
    filter: brightness(0) invert(1);
}

.modal-body {
    padding: 20px 30px 30px;
}

.signup-form {
    max-width: 550px;
    margin: 0 auto;
}

.signup-form .form-control {
    background-color: #f8f8f8;
    border: none;
    border-radius: 6px;
    padding: 20px;
    height: 61px;
    color: var(--black);
    font-size: 16px;
}

.signup-form .form-control::placeholder {
    color: #999;
}

.signup-form .form-control:focus {
    background-color: #f8f8f8;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 0.2rem rgba(32, 92, 255, 0.25);
}

.btn-submit {
    background-color: var(--primary-blue);
    color: var(--white);
    font-size: 18px;
    font-weight: 500;
    padding: 18px;
    border: none;
    border-radius: 4px;
    height: 72px;
    transition: all 0.3s ease;
}

.btn-submit:hover {
    background-color: #1a4dd4;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(32, 92, 255, 0.4);
}

/* Responsive Design */
@media (max-width: 768px) {
    .main-heading {
        font-size: 26px;
    }
    
    .sub-heading {
        font-size: 12px;
    }
    
    .feature-list p {
        font-size: 16px;
    }
    
    .features-box {
        margin: 10px 15px;
        padding: 20px 15px;
    }
    
    .btn-cta {
        font-size: 16px;
        padding: 12px 30px;
    }
    
    .modal-title {
        font-size: 24px;
    }
    
    .modal-dialog {
        margin: 1rem;
    }
    
    .signup-form {
        padding: 0 10px;
    }
}

@media (max-width: 480px) {
    .modal-content {
        border-width: 5px;
    }
    
    .features-box {
        margin: 10px 0;
    }
    
    .feature-list li {
        padding: 10px;
    }
    
    .feature-list i {
        font-size: 16px;
    }
}