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

body {
    font-family:
        -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        Oxygen, Ubuntu, Cantarell, sans-serif;
    color: #ffffff;
    overflow-x: hidden;
}

/* Navigation Header */
.nav-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    /* background: rgba(0, 0, 19, 0.8); */
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(196, 196, 255, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: #ffffff;
    text-decoration: none;
}

.logo svg {
    width: 28px;
    height: 28px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.language-switcher {
    display: flex;
    align-items: center;
}

.language-switcher select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    color: #ffffff;
    background: rgba(196, 196, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 999px;
    padding: 0.5rem 2.2rem 0.5rem 0.8rem;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    cursor: pointer;
    background-image:
        linear-gradient(45deg, transparent 50%, #ffffff 50%),
        linear-gradient(135deg, #ffffff 50%, transparent 50%);
    background-position:
        calc(100% - 16px) calc(50% - 2px),
        calc(100% - 11px) calc(50% - 2px);
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
    outline: none;
    transition: all 0.2s ease;
}

.language-switcher select:hover,
.language-switcher select:focus {
    background-color: rgba(196, 196, 255, 0.26);
    border-color: rgba(255, 255, 255, 0.4);
}

.nav-button {
    padding: 0.8rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    color: #000013;
    text-align: center;
    background: linear-gradient(135deg, #ffffff 0%, #c4c4ff 100%);
    border: none;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(196, 196, 255, 0.3);
    cursor: pointer;
}

.nav-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(196, 196, 255, 0.5);
}

/* Gradient Background */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg,
            #000013 0%,
            #00003b 25%,
            #000076 50%,
            #0000b0 75%,
            #0000ff 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8rem 2rem;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%,
            rgba(78, 78, 255, 0.2) 0%,
            transparent 50%),
        radial-gradient(circle at 80% 80%,
            rgba(0, 0, 235, 0.2) 0%,
            transparent 50%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.6;
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-content {
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

h1 {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #ffffff 0%, #c4c4ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: #d8d8ff;
    margin-bottom: 3rem;
    font-weight: 300;
    line-height: 1.6;
}

strong {
    font-weight: 700;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 4rem 0;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(196, 196, 255, 0.2);
    border-radius: 20px;
    padding: 2rem;
    transition: all 0.3s ease;
    animation: fadeInUp 1s ease-out;
}

.feature-card:nth-child(1) {
    animation-delay: 0.1s;
}

.feature-card:nth-child(2) {
    animation-delay: 0.2s;
}

.feature-card:nth-child(3) {
    animation-delay: 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(196, 196, 255, 0.4);
    box-shadow: 0 20px 40px rgba(0, 0, 255, 0.2);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.feature-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #ebebff;
    font-weight: 600;
}

.feature-description {
    color: #b0b0ff;
    line-height: 1.6;
}

.cta-section {
    margin-top: 4rem;
    text-align: center;
}

.cta-button {
    display: inline-block;
    padding: 1.2rem 3rem;
    font-size: 1.2rem;
    font-weight: 600;
    color: #000013;
    background: linear-gradient(135deg, #ffffff 0%, #c4c4ff 100%);
    border: none;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(196, 196, 255, 0.3);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
            transparent,
            rgba(255, 255, 255, 0.4),
            transparent);
    transition: left 0.5s;
}

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

.cta-button:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 40px rgba(196, 196, 255, 0.5);
}

.cta-note {
    margin-top: 1.5rem;
    color: #b0b0ff;
    font-size: 0.9rem;
}

.highlight {
    display: inline-block;
    background: rgba(0, 0, 255, 0.2);
    padding: 0.3rem 1rem;
    border-radius: 20px;
    margin: 0.5rem;
    border: 1px solid rgba(196, 196, 255, 0.3);
}

/* Additional Section */
.benefits {
    background: linear-gradient(135deg,
            #0000ff 0%,
            #4e4eff 50%,
            #8989ff 100%);
    padding: 6rem 2rem;
    position: relative;
}

.benefits-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.benefits h2 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: 2rem;
    color: #ffffff;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.benefit-item {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.benefit-item h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: #ebebff;
}

.benefit-item p {
    color: #d8d8ff;
}

/* Footer */
.footer {
    background: #000013;
    padding: 2rem;
    text-align: center;
    color: #7676ff;
}

.footer a {
    color: #9d9dff;
    text-decoration: none;
    transition: color 0.3s;
}

.footer a:hover {
    color: #c4c4ff;
}

@media (max-width: 768px) {
    .features {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 2.5rem;
    }

    .nav-header {
        padding: 1rem;
    }

    .nav-button {
        padding: 0.6rem 0.8rem;
        font-size: 0.9rem;
    }

    .nav-actions {
        gap: 0.6rem;
    }
}