/* --- 1. Font Face Placeholder --- */
  @font-face {
    font-family: 'Cofigra';
    src: url('fonts/Cofigra.ttf') format('woff2'),
         url('fonts/Cofigra-Bold.woff') format('woff');
    font-weight: 900;
    font-style: normal;
    font-display: swap;
  }

  /* --- 2. Shared Variables & Reset --- */
  :root {
    --msd-text-color: #ffffff;
    --msd-bg-color: #111111;
    --msd-accent-color: #333333;
    --msd-padding: 40px;
    --msd-menu-bg: #0a0a0a;
    --msd-transition: 0.6s cubic-bezier(0.83, 0, 0.17, 1); /* Cinematic easing */
  }

  body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    background-color: var(--msd-bg-color);
    font-family: 'Cofigra', sans-serif;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden; /* Prevent horizontal scroll */
  }

  /* --- 3. Main Container & Video --- */
  .msd-container {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .msd-video-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    filter: brightness(0.5) contrast(1.1);
  }

  .msd-texture-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    opacity: 0.1;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  }

  .msd-content {
    position: relative;
    z-index: 2;
    padding: var(--msd-padding);
    height: 100%;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  /* --- 4. Typography --- */
  .msd-title {
    font-size: clamp(5rem, 18vw, 16rem);
    font-weight: 900;
    line-height: 0.85;
    color: var(--msd-text-color);
    margin: 0;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    /* Simple entrance animation */
    animation: msdFadeInUp 1.2s ease-out forwards;
    opacity: 0;
    transform: translateY(20px);
  }

  .msd-subtitle {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 700;
    color: var(--msd-text-color);
    margin-top: 20px;
    margin-left: 5px;
    animation: msdFadeInUp 1.2s ease-out 0.2s forwards;
    opacity: 0;
    transform: translateY(20px);
  }

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

  /* --- 5. Navigation Elements --- */
  /* Hamburger Trigger */
  .msd-menu-trigger {
    position: absolute;
    top: var(--msd-padding);
    right: var(--msd-padding);
    z-index: 50; /* Above content, below menu overlay */
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    color: var(--msd-text-color);
    opacity: 0.8;
    transition: opacity 0.3s ease;
  }
  .msd-menu-trigger:hover {
    opacity: 1;
  }

  /* Bottom Nav */
  .msd-bottom-nav {
    position: absolute;
    bottom: var(--msd-padding);
    right: var(--msd-padding);
    display: flex;
    align-items: center;
    gap: 30px;
    color: var(--msd-text-color);
    font-family: 'Cofigra', sans-serif;
    letter-spacing: 0.04em;
    z-index: 10;
  }

  /* Responsive Bottom Nav for Mobile */
  @media (max-width: 768px) {
    .msd-bottom-nav {
        flex-direction: column;
        align-items: flex-end;
        gap: 15px;
    }
  }

  .msd-nav-link {
    text-decoration: none;
    color: var(--msd-text-color);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
    opacity: 0.7;
    transition: opacity 0.3s ease;
  }
  .msd-nav-link:hover {
    opacity: 1;
  }

  .msd-icon {
    width: 14px;
    height: 14px;
    fill: currentColor;
  }
  .msd-icon-arrow { transform: rotate(-45deg); }
  .msd-bottom-icons { display: flex; gap: 15px; margin-left: 20px; opacity: 0.5; }

  /* --- 6. SLIDING MENU OVERLAY --- */
  .msd-overlay-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 100vw; /* Default to full width on mobile */
    height: 100vh;
    background-color: var(--msd-menu-bg);
    z-index: 100; /* Highest z-index */
    transform: translateX(100%); /* Hidden by default */
    transition: transform var(--msd-transition);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }

  /* Desktop/Tablet: Drawer style */
  @media (min-width: 768px) {
    .msd-overlay-menu {
      width: 40vw; /* Takes up 40% of width */
      box-shadow: -10px 0 30px rgba(0,0,0,0.5);
    }
  }

  /* Active Class to Open Menu */
  .msd-overlay-menu.msd-is-open {
    transform: translateX(0);
  }

  /* Close Button inside Menu */
  .msd-close-btn {
    position: absolute;
    top: var(--msd-padding);
    right: var(--msd-padding);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--msd-text-color);
    padding: 10px;
    transition: transform 0.3s ease;
  }
  .msd-close-btn:hover {
    transform: rotate(90deg);
  }
  .msd-close-icon {
    width: 32px;
    height: 32px;
    fill: currentColor;
  }

  /* Menu Links List */
  .msd-menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: center; /* Center on mobile */
  }
  @media (min-width: 768px) {
    .msd-menu-list { text-align: left; } /* Align left on desktop drawer */
  }

  .msd-menu-item {
    margin: 20px 0;
    overflow: hidden; /* For reveal animation */
  }

  .msd-menu-anchor {
    display: block;
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 800;
    color: var(--msd-text-color);
    text-decoration: none;
    transition: color 0.3s ease, transform 0.3s ease;
    opacity: 0; /* Hidden initially for animation sequence */
    transform: translateY(30px);
  }

  .msd-menu-anchor:hover {
    color: #888; /* Subtle grey on hover */
    transform: translateX(10px);
  }

  /* Animation Staggering when Menu Opens */
  .msd-is-open .msd-menu-anchor {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.5s ease, transform 0.5s ease, color 0.3s ease;
  }
  /* Delay for each item */
  .msd-is-open .msd-menu-item:nth-child(1) .msd-menu-anchor { transition-delay: 0.1s; }
  .msd-is-open .msd-menu-item:nth-child(2) .msd-menu-anchor { transition-delay: 0.2s; }
  .msd-is-open .msd-menu-item:nth-child(3) .msd-menu-anchor { transition-delay: 0.3s; }
  .msd-is-open .msd-menu-item:nth-child(4) .msd-menu-anchor { transition-delay: 0.4s; }