/* === GLOBAL / BACKGROUND === */
html {
    height: 100%;
    width: 100%;
    overflow: hidden;
    overscroll-behavior: none;
  }

body {
    margin: 0;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
    background-color: #6223d2;
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
  }
  
  /* Gradient overlay for depth */
  .overlay {
    position: absolute;
    width: 100vw;
    height: 100vh;
    /* Adaptive opacity: lighter on smaller screens, heavier on wide/ultrawide */
    --overlay-alpha: 0.95;
    background: radial-gradient(circle, transparent 0%, rgb(98 35 210 / var(--overlay-alpha)) 100%);
    z-index: 1;
  }

  @media (max-width: 1400px) {
    .overlay { --overlay-alpha: 0.75; }
  }

  @media (max-width: 900px) {
    .overlay { --overlay-alpha: 0.65; }
  }

  @media (min-width: 2200px) {
    .overlay { --overlay-alpha: 0.95; }
  }

  /* Triangle sizing (small by default, scales gently with viewport) */
  :root {
    /* width in px; tune these 3 numbers to taste */
    /* 20% smaller everywhere (scaled from 22/2.2vw/42 -> 17.6/1.76vw/33.6) */
    /* 2× bigger */
    --tri-w: clamp(35.2px, 3.52vw, 67.2px);
    /* keep original aspect ratio: 57.5 / 50 = 1.15 */
    --tri-h: calc(var(--tri-w) * 1.15);
  }
  
  /* Animated triangles - dynamically sized */
  .container {
    display: grid;
    transform: translate(-3%, -4%);
    position: absolute;
    top: 0;
    left: 0;
    z-index: 0;
    width: 110%;
    height: 110%;
  }
  
  .shape {
    width: var(--tri-w);
    height: var(--tri-h);
    -webkit-clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
  }
  
  /* === CONTENT AREA === */
  .content {
    z-index: 3;
    text-align: center;
    color: #fff;
    max-width: 800px;
    padding: 20px;
    perspective: 1000px; /* enables 3D depth for floating elements */
  }
  
  h1 {
    margin: 0 auto 20px auto;
    font-size: 7rem;
    font-family: 'Monoton', cursive;
    text-transform: uppercase;
    letter-spacing: 8px;
    animation: titleCycle 6s linear infinite, floatTitle3D 30s ease-in-out infinite;
    text-shadow: 0 0 25px hsl(320,100%,75%), 0 0 45px rgba(255,255,255,0.4);
    transition: transform 0.3s ease, text-shadow 0.3s ease;
    transform-style: preserve-3d;
    width: 100%;
    text-align: center;
  }
  
  
  /* Same color cycle as the button's border/text */
  @keyframes titleCycle {
    0%   { color: hsl(320,100%,75%); text-shadow: 0 0 25px hsl(320,100%,60%); }
    25%  { color: hsl(240,100%,75%); text-shadow: 0 0 25px hsl(240,100%,60%); }
    50%  { color: hsl(160,100%,75%); text-shadow: 0 0 25px hsl(160,100%,60%); }
    75%  { color: hsl(80,100%,75%);  text-shadow: 0 0 25px hsl(80,100%,60%); }
    100% { color: hsl(320,100%,75%); text-shadow: 0 0 25px hsl(320,100%,60%); }
  }
  
  /* Floating animation for title - different from video */
  @keyframes floatTitle3D {
    0% {
      transform: translate3d(0px, 0px, 0px) rotateX(0deg) rotateY(0deg) rotateZ(0deg);
    }
    20% {
      transform: translate3d(-12px, -6px, 5px) rotateX(-3deg) rotateY(5deg) rotateZ(-1deg);
    }
    40% {
      transform: translate3d(-8px, -15px, 0px) rotateX(-5deg) rotateY(-3deg) rotateZ(0.5deg);
    }
    60% {
      transform: translate3d(10px, -10px, 5px) rotateX(3deg) rotateY(-5deg) rotateZ(-0.5deg);
    }
    80% {
      transform: translate3d(8px, -5px, 0px) rotateX(5deg) rotateY(3deg) rotateZ(1deg);
    }
    100% {
      transform: translate3d(0px, 0px, 0px) rotateX(0deg) rotateY(0deg) rotateZ(0deg);
    }
  }
  
  /* Make sure it scales well on mobile */
  @media (max-width: 480px) {
    h1 {
      font-size: 2.79rem; /* -10% */
      letter-spacing: 3px;
    }
  }
  .video-container {
    width: 100%;
    max-width: 800px;
    margin: 0 auto 30px auto;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1000px; /* enables 3D depth */
  }
  
  .responsive-iframe {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    z-index: 1;
    transform-style: preserve-3d;
  }
  
  .responsive-iframe iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 16px;
    background: rgba(0, 0, 0, 0.3);
    box-shadow: 0 0 50px rgba(0, 0, 0, 1);
    animation: floatVideo3D 20s linear infinite;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  
  /* Smooth multidirectional floating & rotation */
  @keyframes floatVideo3D {
    0% {
      transform: translate3d(0px, 0px, 0px) rotateX(0deg) rotateY(0deg);
    }
    25% {
      transform: translate3d(7.65px, -7.65px, 0px) rotateX(5.1deg) rotateY(-5.1deg);
    }
    50% {
      transform: translate3d(0px, -10.2px, 0px) rotateX(0deg) rotateY(0deg);
    }
    75% {
      transform: translate3d(-7.65px, -7.65px, 0px) rotateX(-5.1deg) rotateY(5.1deg);
    }
    100% {
      transform: translate3d(0px, 0px, 0px) rotateX(0deg) rotateY(0deg);
    }
  }
  
/* === PSYCHEDELIC HOLOGRAPHIC BUTTON === */
.btn {
    position: relative;
    padding: 1rem 6rem;
    font-size: 3.0rem;
    font-weight: 800;
    font-family: 'Monoton', cursive;
    color: #fff;
    background: none;
    border: none;
    cursor: pointer;
    overflow: hidden;
    transition: all 0.8s ease;
    border-radius: 12px;
    z-index: 2;
    text-transform: uppercase;
    letter-spacing: 6px;
    /* Keep enclosure stable even if label text changes */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
    box-sizing: border-box;
  }
  
  /* Thicker glowing border */
  .hologram {
    border: 1px solid; 
    background: rgba(150, 50, 255, 0.1);
    box-shadow: 0 0 25px rgba(200, 100, 255, 0.5);
    backdrop-filter: blur(3px);
    animation: borderCycle 6s linear infinite;
  }
  
  /* Intensified holographic effect on hover (desktop/trackpad only) */
  @media (hover: hover) and (pointer: fine) {
    .hologram:hover {
      transform: scale(1.05); /* no scaling the button container */
      box-shadow: 
        0 0 50px rgba(255, 150, 255, 1),
        0 0 100px rgba(200, 100, 255, 0.8),
        0 0 150px rgba(150, 50, 255, 0.6),
        inset 0 0 30px rgba(255, 150, 255, 0.3);
      animation: borderCycle 3s linear infinite; /* faster cycle on hover */
    }
  }
  
  /* Text hover: only enlarge the text smoothly */
  .hologram span {
    position: relative;
    display: inline-block;
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.8);
    animation: textCycle 6s linear infinite;
    transition: transform 0.2s ease; /* smooth scaling */
  }
  
  @media (hover: hover) and (pointer: fine) {
    .hologram:hover span {
      transform: scale(1.2); /* only text grows */
      text-shadow: 
        0 0 30px rgba(255, 255, 255, 1),
        0 0 50px currentColor,
        0 0 70px currentColor;
      animation: textCycle 3s linear infinite; /* faster cycle on hover */
    }
  }

  /* Animated border hue cycle (matches triangle colors) */
  @keyframes borderCycle {
    0% {
      border-color: hsl(320,100%,70%);
      box-shadow: 0 0 25px hsl(320,100%,60%);
    }
    25% {
      border-color: hsl(240,100%,70%);
      box-shadow: 0 0 25px hsl(240,100%,60%);
    }
    50% {
      border-color: hsl(160,100%,70%);
      box-shadow: 0 0 25px hsl(160,100%,60%);
    }
    75% {
      border-color: hsl(80,100%,70%);
      box-shadow: 0 0 25px hsl(80,100%,60%);
    }
    100% {
      border-color: hsl(320,100%,70%);
      box-shadow: 0 0 25px hsl(320,100%,60%);
    }
  }
  
  /* Color cycle matching the border’s hues */
  @keyframes textCycle {
    0%   { color: hsl(320,100%,80%); text-shadow: 0 0 15px hsl(320,100%,70%); }
    25%  { color: hsl(240,100%,80%); text-shadow: 0 0 15px hsl(240,100%,70%); }
    50%  { color: hsl(160,100%,80%); text-shadow: 0 0 15px hsl(160,100%,70%); }
    75%  { color: hsl(80,100%,80%);  text-shadow: 0 0 15px hsl(80,100%,70%); }
    100% { color: hsl(320,100%,80%); text-shadow: 0 0 15px hsl(320,100%,70%); }
  }
  
  /* Glitch text layers */
  .hologram span::before,
  .hologram span::after {
    content: attr(data-text);
    position: absolute;
    left: 0;
    opacity: 0;
    filter: blur(1px);
    transition: all 0.3s ease;
  }
  
  .hologram span::before {
    top: -2px;
    color: #ff66ff;
    transform: translateX(0);
    animation: glitch 2s infinite;
  }
  
  .hologram span::after {
    bottom: -2px;
    color: #b366ff;
    transform: translateX(0);
    animation: glitch 2s infinite reverse;
  }
  
  /* Intensified glitch on hover (desktop/trackpad only) */
  @media (hover: hover) and (pointer: fine) {
    .hologram:hover span::before,
    .hologram:hover span::after {
      filter: blur(2px);
    }
    
    .hologram:hover span::before {
      animation: glitchIntense 1.5s infinite;
    }
    
    .hologram:hover span::after {
      animation: glitchIntense 1.5s infinite reverse;
    }
  }
  
  @keyframes glitch {
    0%, 100% { transform: translateX(0); opacity: 0.3; }
    20% { transform: translateX(-4px); opacity: 0.5; }
    40% { transform: translateX(4px); opacity: 0.7; }
    60% { transform: translateX(-2px); opacity: 0.5; }
    80% { transform: translateX(2px); opacity: 0.3; }
  }
  
  @keyframes glitchIntense {
    0%, 100% { transform: translateX(0); opacity: 0.6; }
    10% { transform: translateX(-8px); opacity: 0.9; }
    20% { transform: translateX(8px); opacity: 1; }
    30% { transform: translateX(-6px); opacity: 0.8; }
    40% { transform: translateX(6px); opacity: 0.9; }
    50% { transform: translateX(-4px); opacity: 1; }
    60% { transform: translateX(4px); opacity: 0.8; }
    70% { transform: translateX(-6px); opacity: 0.9; }
    80% { transform: translateX(6px); opacity: 0.7; }
    90% { transform: translateX(-3px); opacity: 0.8; }
  }
  
  /* Mobile optimization */
  @media (max-width: 480px) {
    .btn {
      padding: 1rem 2rem;
      font-size: 1.32rem; /* +10% */
    }
  }
  
  
  @keyframes gradient {
    0% {
      background-position: 0% 50%;
    }
    50% {
      background-position: 100% 50%;
    }
    100% {
      background-position: 0% 50%;
    }
  }
  
  @keyframes pulse {
    0% {
      transform: scale(1);
    }
    50% {
      transform: scale(1.02);
    }
    100% {
      transform: scale(1);
    }
  }
  
  /* === RESPONSIVE DESIGN === */
  @media (max-width: 768px) {
    h1 {
      font-size: 3.24rem; /* -10% */
      letter-spacing: 4px;
    }
  
    button {
      padding: 12px 24px;
      font-size: 16px;
    }
  
    .content {
      padding: 10px;
    }
  
    .video-container {
      max-width: 100%;
    }
  }
  
  @media (max-width: 480px) {
    h1 {
      font-size: 2.79rem; /* -10% */
      letter-spacing: 3px;
    }
  
    button {
      padding: 10px 20px;
      font-size: 15px;
    }
  }

  /* Mobile: make the video frame slightly smaller */
  @media (max-width: 768px) {
    .video-container {
      width: 90%;
    }
  }

  @media (max-width: 480px) {
    .video-container {
      width: 90%;
    }
  }

  /* Mobile: prevent any scroll/overscroll and remove background overflow edges */
  @media (hover: none) and (pointer: coarse) {
    html, body {
      overflow: hidden;
      height: 100%;
      width: 100%;
      overscroll-behavior: none;
      -webkit-overflow-scrolling: auto;
      touch-action: none;
    }

    .overlay {
      position: fixed;
      inset: 0;
      width: 100vw;
      height: 100vh;
    }

    .container {
      position: fixed;
      inset: 0;
      width: 100vw;
      height: 100vh;
      transform: none;
    }

    /* Disable hover-only hologram intensification on touch (prevents sticky :hover) */
    .hologram:hover {
      transform: none;
      box-shadow: 0 0 25px rgba(200, 100, 255, 0.5);
      animation: borderCycle 6s linear infinite;
    }

    .hologram:hover span {
      transform: none;
      text-shadow: 0 0 15px rgba(255, 255, 255, 0.8);
      animation: textCycle 6s linear infinite;
    }

    .hologram:hover span::before,
    .hologram:hover span::after {
      filter: blur(1px);
    }

    .hologram:hover span::before {
      animation: glitch 2s infinite;
    }

    .hologram:hover span::after {
      animation: glitch 2s infinite reverse;
    }
  }