Webleb - UI Elements - The DOC Sign Up

<!DOCTYPE html>
<html lang="en">
<head>
  <title>The DOC Sign Up</title>
  <meta charset="utf-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
  <meta name="description" content="Sign up for The DOC – your secure document and collaboration platform." />
  <meta name="keywords" content="sign up, register, The DOC, document, collaboration, secure, cloud, user, authentication, web app" />
  <link href="style.css" rel="stylesheet" />
</head>
<body>
<!-- 
  Webleb Logo Color Palette (dark to light):

1. #232526   (dark anthracite)
  2. #ff6a00   (dark orange)
  3. #ff9100   (vivid orange)
  4. #ffd580   (light cream orange)
-->
<div class="vid-container">
  <video id="Video1" class="bgvid back" autoplay muted loop playsinline>
      <source src="/vids/Sunset-on-the-seashore-1428970.mp4" type="video/mp4"> 
  </video>
  <div class="overlay"></div>
  <div class="inner-container">
    <div class="box">
      <h1 style="text-align:center;margin-bottom:24px;color:#fff;">Sign Up</h1>
      <input type="text" placeholder="Username" autocomplete="username"/>
      <input type="text" placeholder="Email" autocomplete="email"/>
      <input type="password" placeholder="Password" autocomplete="new-password"/>
      <input type="password" placeholder="Confirm Password" autocomplete="new-password"/>
      <button>Sign Up</button>
      <p>Already have an account? <span class="signup">Login</span></p>
    </div>
  </div>
</div>
<script src="/js/main.js"></script>
</body>
</html>
</div>
<script src="/js/main.js"></script>
</body>
</html>

@import url(https://fonts.googleapis.com/css?family=Inter:300);
body, html {
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', 'Roboto', Arial, sans-serif;
  box-sizing: border-box;
  min-height: 100vh;
}

.vid-container {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

.bgvid {
  position: absolute;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  z-index: 1;
}

.overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  background: linear-gradient(120deg, rgba(30,30,40,0.7) 60%, rgba(255,145,0,0.2) 100%);
  z-index: 2;
}

.inner-container {
  position: relative;
  z-index: 3;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.box {
  background: rgba(23, 23, 26, 0.82);
  border-radius: 18px;
  box-shadow: 0 8px 32px 0 #000a, 0 1.5px 8px 0 #ff910055;
  padding: 38px 32px 28px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 320px;
  max-width: 90vw;
  backdrop-filter: blur(8px);
  border: 1.5px solid #ff9100;
}

.logo {
  font-size: 2.1rem;
  font-weight: bold;
  color: #ff9100;
  margin-bottom: 10px;
  letter-spacing: 2px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo span {
  color: #fff;
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: 1px;
}

.box h1 {
  color: #fff;
  margin-bottom: 22px;
  font-size: 1.5rem;
  letter-spacing: 1px;
}

.box input[type="text"], .box input[type="password"] {
  width: 100%;
  padding: 12px 14px;
  margin-bottom: 16px;
  border: none;
  border-radius: 8px;
  background: #232526;
  color: #fff;
  font-size: 1rem;
  outline: none;
  transition: box-shadow 0.2s, border 0.2s;
  box-shadow: 0 1px 4px #0002;
  border: 1.5px solid #444;
}
.box input[type="text"]:focus, .box input[type="password"]:focus {
  border: 1.5px solid #ff9100;
  box-shadow: 0 0 0 2px #ff910055;
}

.box button {
  width: 100%;
  padding: 12px 0;
  background: linear-gradient(90deg, #ff9100 60%, #ffb347 100%);
  color: #232526;
  border: none;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: 12px;
  transition: background 0.2s, color 0.2s;
  box-shadow: 0 2px 8px #ff910033;
  letter-spacing: 0.5px;
}
.box button:hover {
  background: linear-gradient(90deg, #ffb347 0%, #ff9100 100%);
  color: #fff;
}

.box p {
  color: #fff;
  font-size: 1rem;
  margin: 0;
}
.signup {
  color: #ff9100;
  cursor: pointer;
  font-weight: 600;
  margin-left: 4px;
  transition: text-decoration 0.2s;
}
.signup:hover {
  text-decoration: underline;
}

.input-group {
  position: relative;
  width: 100%;
  margin-bottom: 18px;
}
.input-group input[type="text"]#username {
  width: 100%;
  padding: 14px 12px 8px 12px;
  border: none;
  border-bottom: 2px solid #444;
  background: transparent;
  color: #fff;
  font-size: 1rem;
  outline: none;
  transition: border-color 0.3s;
  z-index: 1;
  position: relative;
}
.input-group label {
  position: absolute;
  left: 12px;
  top: 14px;
  color: #aaa;
  font-size: 1rem;
  pointer-events: none;
  transition: 
    color 0.2s,
    font-size 0.2s,
    transform 0.3s cubic-bezier(.4,2,.6,1),
    top 0.2s;
  background: transparent;
  z-index: 2;
}
.input-group input:focus + label,
.input-group input:not(:placeholder-shown):not(:focus) + label,
.input-group input:not(:focus):valid + label {
  color: #ff9100;
  font-size: 0.85rem;
  top: -12px;
  transform: translateY(-8px) scale(0.95);
  background: #232526;
  padding: 0 4px;
}

.input-group .underline {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: #ff9100;
  transform: scaleX(0);
  transition: transform 0.3s cubic-bezier(.4,2,.6,1);
  z-index: 1;
}
.input-group input:focus ~ .underline {
  transform: scaleX(1);
}
.input-group input:not(:placeholder-shown):not(:focus) ~ .underline,
.input-group input:valid ~ .underline {
  transform: scaleX(1);
}

@media (max-width: 600px) {
  .box {
    min-width: 90vw;
    padding: 24px 8vw 18px 8vw;
  }
  .logo {
    font-size: 1.5rem;
  }
  .box h1 {
    font-size: 1.1rem;
  }
}

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