:root {
    --color-bg: #0a192f;
    --color-bg-light: #112240;
    --color-text: #e6f1ff;
    --color-text-muted: #8892b0;
    --color-primary: #d4af37; /* Gold */
    --color-primary-hover: #b5952f;
    --color-secondary: #64ffda; /* Teal accent for tech feel, optional */
    
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    --container-width: 1200px;
    --border-radius: 4px;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-text);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

ul {
    list-style: none;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-family: var(--font-body);
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-bg);
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-1px);
}

.btn-block {
    display: block;
    width: 100%;
}

/* Navbar */
.navbar {
    padding: var(--spacing-md) 0;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-links a:not(.btn) {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.nav-links a:not(.btn):hover {
    color: var(--color-primary);
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    text-align: center;
    background: radial-gradient(circle at 50% 50%, #112240 0%, #0a192f 100%);
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(to right, #e6f1ff, #8892b0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-form {
    display: flex;
    gap: var(--spacing-sm);
    max-width: 500px;
    margin: 0 auto var(--spacing-sm);
}

.hero-form input {
    flex: 1;
    padding: 12px 16px;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-text-muted);
    background-color: rgba(255,255,255,0.05);
    color: var(--color-text);
    font-family: var(--font-body);
}

.hero-form input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-note {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    opacity: 0.7;
}

/* Trusted By */
.trusted-by {
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.trusted-label {
    text-align: center;
    font-size: 0.75rem;
    letter-spacing: 2px;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
}

.logo-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    opacity: 0.5;
}

.partner-logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--color-text-muted);
}

/* Features */
.features {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    color: var(--color-text-muted);
    font-size: 1.1rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background-color: var(--color-bg-light);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    transition: transform 0.3s ease;
    border: 1px solid transparent;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(212, 175, 55, 0.3);
}

.feature-icon {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--color-text-muted);
}

/* Security */
.security {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-light);
}

.security-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.security-text h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.security-text p {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.security-list li {
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    color: var(--color-text);
}

.security-list li::before {
    content: "✓";
    color: var(--color-primary);
    margin-right: 10px;
    font-weight: bold;
}

.security-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.shield-graphic {
    width: 200px;
    height: 200px;
    border: 1px solid var(--color-primary);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.shield-graphic::after {
    content: "";
    position: absolute;
    width: 240px;
    height: 240px;
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 50%;
    animation: pulse 3s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.8); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: scale(1.2); opacity: 0; }
}

/* CTA Section */
.cta-section {
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.cta-section p {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.cta-form {
    max-width: 400px;
    margin: 0 auto;
    text-align: left;
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

.cta-form input {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-text-muted);
    background-color: rgba(255,255,255,0.05);
    color: var(--color-text);
    font-family: var(--font-body);
}

.cta-form input:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* Footer */
footer {
    padding: var(--spacing-lg) 0 var(--spacing-md);
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-brand p {
    color: var(--color-text-muted);
    margin-top: var(--spacing-sm);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: var(--spacing-xl);
}

.link-column h4 {
    margin-bottom: var(--spacing-sm);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.link-column a {
    display: block;
    color: var(--color-text-muted);
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.link-column a:hover {
    color: var(--color-primary);
}

.copyright {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.8rem;
    opacity: 0.5;
}

/* Modal */
.modal {
    display: none; 
    position: fixed; 
    z-index: 2000; 
    left: 0;
    top: 0;
    width: 100%; 
    height: 100%; 
    overflow: auto; 
    background-color: rgba(0,0,0,0.7); 
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--color-bg-light);
    margin: 10% auto; 
    padding: var(--spacing-lg);
    border: 1px solid var(--color-text-muted);
    width: 90%;
    max-width: 500px;
    border-radius: var(--border-radius);
    position: relative;
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

.close-modal {
    color: var(--color-text-muted);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close-modal:hover,
.close-modal:focus {
    color: var(--color-primary);
    text-decoration: none;
    cursor: pointer;
}

.modal h2 {
    margin-bottom: var(--spacing-sm);
}

.modal p {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-text-muted);
    background-color: rgba(255,255,255,0.05);
    color: var(--color-text);
    font-family: var(--font-body);
}

.contact-form textarea {
    resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-form {
        flex-direction: column;
    }
    
    .security-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .security-list li {
        justify-content: center;
    }
    
    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}