/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body, html {
    height: 100%;
    overflow-x: hidden;
    font-family: 'Roboto', 'Roboto Condensed', Arial, sans-serif;
}

/* Slideshow container - fullscreen background */
.slideshow-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity 2s ease-in-out;
}
.slide.active {
    opacity: 1;
}

/* Show desktop images by default, hide mobile */
.desktop-slide {
    display: block;
}
.mobile-slide {
    display: none;
}

.logo-container {
    position: fixed;
    top: 80px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1100; /* Above content sections */
    width: 80px;
    height: 32px;
}
.logo {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: auto;
    transition: opacity 2s ease-in-out;
}
.logo-black { opacity: 0; }
.logo-white { opacity: 1; }
.bright-background .logo-black { opacity: 1; }
.bright-background .logo-white { opacity: 0; }
.dark-background .logo-black { opacity: 0; }
.dark-background .logo-white { opacity: 1; }

.nav-container {
    position: fixed;
    top: 200px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1100; /* Above content sections */
    display: flex;
    align-items: center;
    gap: 15px;
}
.menu-item {
    font-family: 'Roboto Condensed', 'Arial Narrow', 'Arial', sans-serif;
    font-weight: 900;
    font-size: 22px;
    letter-spacing: 0.5px;
}
.menu-item a {
    color: white;
    text-decoration: none;
    transition: color 2s ease-in-out;
    display: block;
    cursor: pointer;
}
.menu-item a:hover {
    opacity: 0.7;
}
.bright-background .menu-item a { color: black; }
.dark-background .menu-item a { color: white; }

/* Content sections (about/contact overlays) */
.content-section {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: transparent;
    color: white;
    display: none;
    z-index: 1000;
    text-align: left;
    pointer-events: auto; /* Allow clicks everywhere on the overlay */
}

.content-section.show,
.content-section.hide {
    display: block;
}

/* Z-index management for crossfade */
.content-section.show {
    z-index: 1000;
}

.content-section.hide {
    z-index: 999; /* Lower z-index so new section appears on top */
}

.content-section.show.crossfade {
    z-index: 1001; /* New section on top during crossfade */
}

/* Overlay: FADE IN ONLY (no sliding) */
.content-section .scrollable-area {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: calc(100vh - 250px);
    overflow-y: auto;
    padding: 60px 40px 0px;
    background: linear-gradient(
        to top,
        rgba(0, 0, 0, 1) 0%,
        rgba(0, 0, 0, 0.95) 20%,
        rgba(0, 0, 0, 0.8) 40%,
        rgba(0, 0, 0, 0.6) 60%,
        rgba(0, 0, 0, 0.4) 80%,
        rgba(0, 0, 0, 0) 100%
    );
    opacity: 0;
    animation: fadeInGradient 0.8s cubic-bezier(0.25,0.46,0.45,0.94) forwards;
    --fadeSize: 54px;
    -webkit-mask-image: linear-gradient(
        to bottom,
        transparent 0px,
        black var(--fadeSize),
        black 100%
    );
    mask-image: linear-gradient(
        to bottom,
        transparent 0px,
        black var(--fadeSize),
        black 100%
    );
    pointer-events: auto;
}

.content-section.show .scrollable-area {
    animation: fadeInGradient 0.8s cubic-bezier(0.25,0.46,0.45,0.94) forwards;
}

@keyframes fadeInGradient {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Fade out scrollable area when hiding */
.content-section.hide .scrollable-area {
    animation: fadeOutGradient 0.8s cubic-bezier(0.25,0.46,0.45,0.94) forwards;
}

@keyframes fadeOutGradient {
    from { opacity: 1; }
    to { opacity: 0; }
}

/* Crossfade: instant fade with no delay */
.content-section.crossfade .scrollable-area {
    animation: fadeInGradient 0.8s cubic-bezier(0.25,0.46,0.45,0.94) forwards;
    animation-delay: 0s !important;
}

/* Fade out entire section */
@keyframes fadeOutSection {
    from { opacity: 1; }
    to { opacity: 0; }
}

.content-section.hide {
    animation: fadeOutSection 0.8s cubic-bezier(0.25,0.46,0.45,0.94) forwards;
}

/* Content inside scrollable area: fade in after overlay */
.content-section .scrollable-content {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
    opacity: 0;
    transition: none;
    animation: fadeInText 0.6s cubic-bezier(0.25,0.46,0.45,0.94) forwards;
    animation-delay: 0.8s;
}

.content-section.show .scrollable-content {
    animation: fadeInText 0.6s cubic-bezier(0.25,0.46,0.45,0.94) forwards;
    animation-delay: 0.8s;
}

/* Crossfade: instant content fade with no delay */
.content-section.crossfade .scrollable-content {
    animation: fadeInText 0.8s cubic-bezier(0.25,0.46,0.45,0.94) forwards;
    animation-delay: 0s !important;
    opacity: 1; /* Start visible immediately */
}

/* Fade out content when hiding */
.content-section.hide .scrollable-content {
    animation: fadeOutText 0.8s cubic-bezier(0.25,0.46,0.45,0.94) forwards;
}

@keyframes fadeInText {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeOutText {
    from { opacity: 1; }
    to { opacity: 0; }
}

.content-section h1 {
    font-family: 'Roboto Condensed', Arial, sans-serif;
    font-size: 3rem;
    margin-bottom: 30px;
    color: white;
}

.content-section h2 {
    font-family: 'Roboto Condensed', Arial, sans-serif;
    font-size: 2rem;
    margin: 40px 0 20px;
    color: white;
}

.content-section p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.9);
}

/* ABOUT section: bigger copy with bottom padding */
#about .scrollable-content {
    padding-bottom: 100px;
}

#about .scrollable-content h1 {
    font-size: 3.5rem;
}

#about .scrollable-content h2 {
    font-size: 2.5rem;
}

#about .scrollable-content p {
    font-size: 1.5rem;
    line-height: 1.8;
    margin-bottom: 28px;
    font-family: 'Roboto', Arial, sans-serif;
}

#about .scrollable-content p:last-child {
    margin-bottom: 0;
}

/* CONTACT: stylize email link and heading */
#contact .scrollable-content h1 {
    font-size: 3.5rem;
}

#contact .scrollable-content p {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}

#contact .scrollable-content p,
#contact .scrollable-content a {
    font-size: 1.5rem;
    font-family: 'Roboto', Arial, sans-serif;
    color: #fff;
    text-decoration: none;
    margin-bottom: 0;
}

#contact .scrollable-content a:hover {
    opacity: 0.8;
    text-decoration: none;
}

/* Copy button styling */
.copy-btn {
    margin-left: 15px;
    background: transparent;
    border: none;
    color: white;
    font-size: 1.5rem;
    padding: 0;
    cursor: pointer;
    transition: opacity 0.3s ease;
    vertical-align: middle;
    outline: none;
}

.copy-btn:hover {
    background: transparent;
    opacity: 0.8;
    transform: none;
}

.copy-btn:active {
    transform: none;
}

/* Custom scrollbar for the scrollable area */
.scrollable-area::-webkit-scrollbar {
    width: 8px;
}

.scrollable-area::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

.scrollable-area::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

.scrollable-area::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    /* On mobile: hide desktop, show mobile */
    .desktop-slide {
        display: none;
    }
    .mobile-slide {
        display: block;
    }

    .logo-container {
        top: 20px;
        width: 100px;
        height: 40px;
    }
    .nav-container {
        top: 85px;
        gap: 12px;
    }
    .menu-item {
        font-size: 16px;
    }
    .scrollable-area {
        height: calc(100vh - 200px);
        padding: 40px 20px 0px;
    }
    .content-section h1,
    #about .scrollable-content h1,
    #contact .scrollable-content h1 {
        font-size: 2.5rem;
    }
    .content-section h2,
    #about .scrollable-content h2 {
        font-size: 1.9rem;
    }
    .content-section p,
    #about .scrollable-content p,
    #contact .scrollable-content p,
    #contact .scrollable-content a {
        font-size: 1.15rem;
    }
    .copy-btn {
        font-size: 1rem;
        padding: 0;
    }
}

@media (max-width: 480px) {
  .logo-container {
    top: 15px !important;
    width: 80px;
    height: 32px;
  }

  .nav-container {
    top: 135px !important;
    gap: 10px;
  }

  .menu-item {
    font-size: 18px;
  }

  .scrollable-area {
    height: calc(100vh - 150px);
    padding: 30px 15px 0px;
  }

  .content-section h1,
  #about .scrollable-content h1,
  #contact .scrollable-content h1 {
    font-size: 2rem;
  }

  .content-section h2,
  #about .scrollable-content h2 {
    font-size: 1.4rem;
  }

  #about .scrollable-content {
    padding-bottom: 60px;
  }

  .content-section p,
  #about .scrollable-content p,
  #contact .scrollable-content p,
  #contact .scrollable-content a {
    font-size: 1.15rem;
  }

  .copy-btn {
    font-size: 1rem;
    padding: 0;
  }
}

/* Hide scrollbars */
body::-webkit-scrollbar { display: none; }
body { -ms-overflow-style: none; scrollbar-width: none; }