:root {
    --primary-color: #333;
    --background-color: #fff;
    --font-family: 'Outfit', sans-serif, Arial, sans-serif;
    --title-font-size: 5rem;
    --subtitle-font-size: 1.2rem;
    --content-font-size: 1rem;
    --underline-offset: 0.5rem;
    --letter-spacing: 1rem;
}

/* Base Styles */
body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    margin: 0;
    padding: 0;
}

/* Hamburger Menu */
.hamburger-menu {
    position: fixed;
    top: 3rem;
    left: 3rem;
    width: 3rem;
    height: 3rem;
    background-color: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 0.25rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: scale(0.8);
}

.hamburger-menu:hover {
    background-color: rgba(255, 255, 255, 1);
    transform: scale(1.05);
}

.hamburger-line {
    width: 1.5rem;
    height: 2px;
    background-color: var(--primary-color);
    transition: all 0.3s ease;
    transform-origin: center;
}

/* Hamburger to X Animation */
.hamburger-menu.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger-menu.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger-menu.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Full Page Navigation Overlay */
.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 1500;
    opacity: 0;
    visibility: hidden;
    transition: all 0.5s ease;
}

/* Mobile Logo */
.mobile-logo {
    position: absolute;
    top: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.2rem;
    z-index: 1600;
    display: none;
}

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

.nav-overlay-content {
    display: flex;
    width: 100%;
    height: 100%;
}

.nav-column {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 4rem;
    color: white;
}

.full-nav {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-bottom: 4rem;
}

.full-nav-link {
    color: white;
    text-decoration: none;
    font-size: 2rem;
    font-weight: 300;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.full-nav-link::before {
    content: '';
    position: absolute;
    left: -100%;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: white;
    transition: left 0.3s ease;
    z-index: -1;
}

.full-nav-link:hover {
    color: var(--primary-color);
}

.full-nav-link:hover::before {
    left: 0;
}

.overlay-social {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.overlay-social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.overlay-social-link:hover {
    color: #ccc;
    transform: scale(1.1);
}

.overlay-social-icon {
    width: 1.5rem;
    height: 1.5rem;
}

.image-column {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem;
}

.black-image {
    width: 100%;
    height: 100%;
    background-color: #000;
    border-radius: 1rem;
}

/* Social Media Sidebar */
.social-sidebar {
    position: fixed;
    left: 3rem;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    z-index: 1000;
    mix-blend-mode: difference;
    transition: opacity 0.3s ease;
}

.social-sidebar.hidden {
    opacity: 0;
    pointer-events: none;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    transition: all 0.3s ease;
    text-decoration: none;
    color: white;
}

.social-link:hover {
    transform: translateY(-3px);
    opacity: 0.7;
}

.social-icon {
    width: 1.5rem;
    height: 1.5rem;
    transition: all 0.3s ease;
}

/* Navigation Header */
.nav-header {
    position: absolute;
    top: 1.5rem;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 4rem;
}

.nav-container {
    max-width: 100%;
    margin: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.nav-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #666;
    transform: translateY(-2px);
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-logo {
    display: flex;
    align-items: center;
}

.logo {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.1rem;
    transition: all 0.3s ease;
}

.logo:hover {
    color: #666;
    transform: scale(1.05);
}

/* Hero Section */
.hero {
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
}

.title {
    font-size: var(--title-font-size);
    color: var(--primary-color);
    letter-spacing: var(--letter-spacing);
    z-index: 99999;
    margin: 1rem;
}

.subtitle {
    font-size: var(--subtitle-font-size);
    color: var(--primary-color);
    margin: 0.5rem;
}

.content {
    font-size: var(--content-font-size);
    color: var(--primary-color);
    margin: 0.5rem;
    text-decoration: underline;
    text-underline-offset: var(--underline-offset);
}

/* Responsive Design */
@media screen and (max-width: 768px) {
    :root {
        --title-font-size: 3rem;
        --subtitle-font-size: 1rem;
        --content-font-size: 0.8rem;
        --letter-spacing: 0.5rem;
    }

    .social-sidebar {
        display: none;
    }

    /* Hide navigation header on mobile */
    .nav-header {
        display: none;
    }

    /* Always show hamburger menu on mobile */
    .hamburger-menu {
        opacity: 1;
        visibility: visible;
        transform: scale(1);
        top: 1.5rem;
        left: 1.5rem;
        width: 2.5rem;
        height: 2.5rem;
    }

    .hamburger-line {
        width: 1.2rem;
        height: 1.5px;
    }

    /* Show mobile logo on mobile */
    .mobile-logo {
        display: block;
    }

    .nav-overlay-content {
        flex-direction: column;
    }

    .nav-column {
        padding: 2rem;
        align-items: flex-start;
        text-align: left;
        margin-top: 5rem;
    }

    .full-nav-link {
        font-size: 1.8rem;
    }

    .image-column {
        padding: 2rem;
    }

    .black-image {
        height: 50vh;
    }
}

@media screen and (max-width: 480px) {
    .nav-links {
        gap: 0.5rem;
    }

    .nav-link {
        font-size: 0.8rem;
    }

    .logo {
        font-size: 1.2rem;
    }

    .full-nav-link {
        font-size: 1.3rem;
    }
}

/* Hide navigation header in abyss section */
#abyss-section .nav-header {
    display: none;
}

/* Scroll Down */
.scroll-down {
    position: absolute; 
    bottom: 5rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    cursor: pointer;
    color: var(--primary-color);
    transition: all 0.3s ease;
    font-weight: 500;
    letter-spacing: 0.1rem;
    text-transform: uppercase;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
}

.scroll-down-text {
    position: relative;
    overflow: hidden;
    display: inline-block;
    padding: 0.1rem 1rem;
}

.scroll-down-text::before {
    content: '';
    position: absolute;
    left: -100%;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: var(--primary-color);
    transition: left 0.3s ease;
    z-index: -1;
    animation: slideBackgroundBefore 3s ease-in-out infinite;
}

.scroll-down-text {
    color: var(--primary-color);
    transition: color 0.3s ease;
}

/* Change text color when background covers it */
.scroll-down-text::before {
    animation: slideBackgroundBefore 3s ease-in-out infinite;
}

/* Force text color change during animation */
.scroll-down-text {
    animation: textColorChange 3s ease-in-out infinite;
}

@keyframes textColorChange {
    0%, 100% {
        color: var(--primary-color);
    }
    50% {
        color: var(--background-color);
    }
}

@keyframes slideBackgroundBefore {
    0% {
        left: -100%;
    }
    50% {
        left: 0;
    }
    100% {
        left: 100%;
    }
}


.scroll-down__line {
    position: absolute;
    margin-top: 1rem;
    left: 50%;
    top: 100%;
    width: 2px;
    height: 0;
    background-color: var(--primary-color);
    transform: translateX(-50%);
    animation: scrollLine 3s infinite;
}

@keyframes scrollLine {
  0% {
    height: 0;
    top: 100%;
  }
  50% {
    height: 40px;
    top: 100%;
  }
  100% {
    height: 0;
    top: calc(100% + 40px);
  }
}


/* Abyss Section */
.text-with-line {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    text-align: center;
    z-index: 2;
}

.animated-line {
    width: calc(100% + 10rem); 
    max-width: 20rem; 
    height: 2px; 
}

.line {
    stroke: var(--background-color, white);
    stroke-width: 2; 
    fill: none;
    stroke-dasharray: 100;
    stroke-dashoffset: 100;
    animation: drawLine 3s ease-in-out infinite;
}

#abyss-section {
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: var(--primary-color);
    color: var(--background-color);
    position: relative;
    overflow: hidden;
}

@keyframes drawLine {
    0% {
        stroke-dashoffset: 100;
    }
    50% {
        stroke-dashoffset: 0;
    }
    100% {
        stroke-dashoffset: -100;
    }
}