/* CSS Variables */
:root {
    --primary-dark: #0A1E50;
    --primary-darker: #050F28;
    --accent-cyan: #00FFFF;
    --accent-cyan-dim: rgba(0, 255, 255, 0.1);
    --text-light: #E8F4F8;
    --text-dim: #94A3B8;
    --gradient-1: linear-gradient(135deg, #0A1E50 0%, #050F28 100%);
    --gradient-accent: linear-gradient(135deg, #00FFFF 0%, #00D4D4 100%);
}

/* Navigation Styles */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(5, 15, 40, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
    color: var(--text-light);
    font-size: 1.5rem;
    font-weight: 600;
}

.logo-icon {
    width: 40px;
    height: 40px;
    position: relative;
}

.logo-ring {
    position: absolute;
    border: 2px solid var(--accent-cyan);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.logo-ring:nth-child(1) {
    width: 100%;
    height: 100%;
    animation-delay: 0s;
}

.logo-ring:nth-child(2) {
    width: 70%;
    height: 70%;
    top: 15%;
    left: 15%;
    animation-delay: 0.2s;
}

.logo-ring:nth-child(3) {
    width: 40%;
    height: 40%;
    top: 30%;
    left: 30%;
    animation-delay: 0.4s;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.05);
    }
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-dim);
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--accent-cyan);
}

.cta-button {
    background: var(--gradient-accent);
    color: var(--primary-dark) !important;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 255, 255, 0.3);
}

/* Footer Styles */
footer {
    padding: 3rem 2rem;
    background: var(--primary-darker);
    border-top: 1px solid rgba(0, 255, 255, 0.1);
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.footer-section h4 {
    color: var(--accent-cyan);
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section ul li {
    padding: 0.5rem 0;
}

.footer-section a {
    color: var(--text-dim);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--accent-cyan);
}

.footer-bottom {
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 255, 255, 0.1);
    color: var(--text-dim);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--primary-dark);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--accent-cyan);
    max-width: 400px;
    width: 90%;
}

.modal-content h3 {
    margin-bottom: 1.5rem;
    color: var(--accent-cyan);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-dim);
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    background: rgba(0, 255, 255, 0.05);
    border: 1px solid rgba(0, 255, 255, 0.2);
    border-radius: 6px;
    color: var(--text-light);
    font-size: 1rem;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-cyan);
}

.form-buttons {
    display: flex;
    gap: 1rem;
}

.form-buttons button {
    flex: 1;
    padding: 0.75rem;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-submit {
    background: var(--gradient-accent);
    color: var(--primary-dark);
}

.btn-cancel {
    background: transparent;
    color: var(--text-dim);
    border: 1px solid var(--text-dim);
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 1.5rem;
    cursor: pointer;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(5, 15, 40, 0.98);
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
    }

    .nav-links.active {
        display: flex;
    }
}