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

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #0a0e1b;
    min-height: 100vh;
    color: #e6f0ff;
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Background Gradients */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
            radial-gradient(ellipse at top left, rgba(26, 47, 99, 0.4) 0%, transparent 50%),
            radial-gradient(ellipse at bottom right, rgba(15, 31, 66, 0.4) 0%, transparent 50%),
            radial-gradient(ellipse at center, rgba(20, 35, 70, 0.2) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

/* Grid Pattern Overlay */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
            linear-gradient(rgba(255,255,255,.01) 1px, transparent 1px),
            linear-gradient(90deg, rgba(255,255,255,.01) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* Header */
header {
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(1, 9, 21, 0.9);
    backdrop-filter: blur(5px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    width: 100%;
    left: 0;
    right: 0;
}

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

.logo {
    font-size: 24px;
    font-weight: 700;
    color: #ffffff;
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
}

.nav-links a {
    color: #b3d9ff;
    text-decoration: none;
    transition: color 0.3s;
    font-weight: 500;
}

.nav-links a:hover {
    color: #ffffff;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: #b3d9ff;
    transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.back-link {
    color: #b3d9ff;
    text-decoration: none;
    transition: color 0.3s;
    font-weight: 500;
}

.back-link:hover {
    color: #ffffff;
}

/* Buttons */
.cta-button {
    padding: 12px 28px;
    background: linear-gradient(135deg, #4d94ff, #66b3ff);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    display: inline-block;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(77, 148, 255, 0.5);
    background: linear-gradient(135deg, #66b3ff, #4d94ff);
}

.secondary-button {
    padding: 12px 28px;
    background: rgba(255, 255, 255, 0.05);
    color: #b3d9ff;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    border: 1px solid rgba(77, 148, 255, 0.3);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    display: inline-block;
}

.secondary-button::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(77, 148, 255, 0.2), rgba(102, 179, 255, 0.1));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.secondary-button:hover::before {
    opacity: 1;
}

.secondary-button:hover {
    background: rgba(77, 148, 255, 0.15);
    border-color: #4d94ff;
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(77, 148, 255, 0.3);
}

/* Cards */
.card {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(12px);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    position: relative;
    z-index: 1;
    transition: all 0.3s ease;
}

/* Typography */
h1 {
    font-size: 42px;
    font-weight: 300;
    margin-bottom: 20px;
    color: #ffffff;
    letter-spacing: -0.5px;
}

h2 {
    font-size: 32px;
    font-weight: 300;
    margin-bottom: 20px;
    color: #ffffff;
}

h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #ffffff;
}

p {
    color: #8099cc;
    line-height: 1.8;
    margin-bottom: 15px;
}

strong {
    color: #b3d9ff;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.gradient-text {
    background: linear-gradient(135deg, #ffffff, #b3d9ff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.gradient-text-blue {
    background: linear-gradient(135deg, #4d94ff, #66b3ff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Highlight Box */
.highlight-box {
    background: rgba(77, 148, 255, 0.08);
    border-left: 3px solid #4d94ff;
    padding: 20px;
    margin: 25px 0;
    border-radius: 8px;
}

.highlight-box p {
    color: #b3d9ff;
    margin-bottom: 0;
}

/* Footer */
footer {
    padding: 60px 0 30px;
    position: relative;
    z-index: 1;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #ffffff;
}

.footer-section p,
.footer-section a {
    color: #8099cc;
    text-decoration: none;
    display: block;
    margin-bottom: 10px;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: #ffffff;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: #64748b;
    font-size: 14px;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.5;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.1);
        opacity: 0.8;
    }
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    25% {
        transform: translate(50px, -50px) rotate(90deg);
    }
    50% {
        transform: translate(0, -100px) rotate(180deg);
    }
    75% {
        transform: translate(-50px, -50px) rotate(270deg);
    }
}

@keyframes rotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    header {
        position: fixed;
        width: 100%;
        left: 0;
        right: 0;
    }

    body {
        padding-top: 70px;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(0, 0, 0, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        gap: 0;
        padding: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease, padding 0.3s ease;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .nav-links.active {
        max-height: 300px;
        padding: 20px 0;
    }

    .nav-links li {
        padding: 0;
    }

    .nav-links a {
        display: block;
        padding: 15px 20px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .nav-links li:last-child a {
        border-bottom: none;
    }

    .container {
        padding: 0 15px;
    }

    h1 {
        font-size: 32px;
    }

    h2 {
        font-size: 26px;
    }

    h3 {
        font-size: 20px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .cta-button,
    .secondary-button {
        padding: 10px 24px;
        font-size: 14px;
    }
}

@media (max-width: 600px) {
    body {
        padding: 15px;
    }

    h1 {
        font-size: 28px;
    }

    h2 {
        font-size: 24px;
    }

    p {
        font-size: 15px;
    }
}