:root {
    --primary-color: #003366;
    --secondary-color: #001f3f;
    --accent-color: #00ccff;
    --text-color: #ffffff;
    --background-color: #000033;
    --scrollbar-width: 10px;
    --scrollbar-track: rgba(0, 51, 102, 0.1);
    --scrollbar-thumb: rgba(0, 204, 255, 0.5);
    --scrollbar-thumb-hover: rgba(0, 204, 255, 0.7);
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Modern Scrollbar - Webkit browsers */
::-webkit-scrollbar {
    width: var(--scrollbar-width);
}

::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 5px;
    transition: background 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

/* Modern Scrollbar - Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

body {
    font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.5;
    font-weight: 400;
    font-synthesis: none;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

header {
    position: fixed;
    width: 100%;
    z-index: 1000;
    background: linear-gradient(rgba(0, 51, 102, 0.7), rgba(0, 31, 63, 0.9));
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    color: var(--text-color);
    text-decoration: none;
}

.logo-icon {
    font-size: 2rem;
}

.menu-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1001;
}

.menu-button:hover {
    background: rgba(255, 255, 255, 0.2);
}

.menu-button .menu-icon {
    position: relative;
    width: 24px;
    height: 2px;
    background: var(--text-color);
    transition: all 0.3s ease;
}

.menu-button .menu-icon::before,
.menu-button .menu-icon::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--text-color);
    transition: all 0.3s ease;
}

.menu-button .menu-icon::before {
    transform: translateY(-8px);
}

.menu-button .menu-icon::after {
    transform: translateY(8px);
}

.menu-button.active .menu-icon {
    background: transparent;
}

.menu-button.active .menu-icon::before {
    transform: rotate(45deg) translateY(0);
}

.menu-button.active .menu-icon::after {
    transform: rotate(-45deg) translateY(0);
}

.hero {
    height: 100vh;
    position: relative;
    overflow: hidden;
}

.video-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0, 0, 51, 0.3), rgba(0, 0, 51, 0.6));
}

.hero-content {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    z-index: 2;
}

.hero-title {
    font-size: 5rem;
    margin: 0;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-color);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin: 1rem 0 2rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
}

.button-group {
    display: flex;
    gap: 1rem;
}

.primary-button, .secondary-button {
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    transition: transform 0.3s ease;
    font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
}

.primary-button {
    background-color: var(--accent-color);
    color: var(--background-color);
}

.secondary-button {
    background-color: transparent;
    color: var(--text-color);
    border: 2px solid var(--text-color);
}

.primary-button:hover, .secondary-button:hover {
    transform: scale(1.05);
}

.ocean-nav {
    display: flex;
    justify-content: space-around;
    padding: 1rem;
    background: rgba(0, 51, 102, 0.3);
    position: absolute;
    bottom: 0;
    width: 100%;
    z-index: 2;
}

.ocean-nav a {
    color: var(--text-color);
    text-decoration: none;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
    font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
}

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

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 120px 40px 40px;
    transition: right 0.5s cubic-bezier(0.77, 0, 0.175, 1);
    z-index: 1000;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-items {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.mobile-menu-items a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.3s ease;
    font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
}

.mobile-menu.active .mobile-menu-items a {
    opacity: 1;
    transform: translateX(0);
}

.mobile-menu-items a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

.mobile-menu-items a:hover::after {
    width: 100%;
}

.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Page Navigation */
.page-navigation {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    z-index: 100;
    pointer-events: none;
}

.nav-arrow {
    position: absolute;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    border: none;
    border-radius: 50%;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: auto;
}

.nav-arrow:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.nav-arrow.prev {
    left: 2rem;
}

.nav-arrow.next {
    right: 2rem;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }

    .ocean-nav {
        flex-wrap: wrap;
    }

    .ocean-nav a {
        padding: 0.5rem;
    }

    .nav-arrow {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }

    .nav-arrow.prev {
        left: 1rem;
    }

    .nav-arrow.next {
        right: 1rem;
    }
}