/*
  MIT License
  Copyright (c) 2025 ngboonkhai
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:
  
  The above copyright notice and this permission notice shall be included in all
  copies or substantial portions of the Software.
  
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  SOFTWARE.
*/

:root {
  --bg-color: #f0f2f5;
  --text-color: #333;
  --input-bg: #fff;
  --input-border: #ccc;
  --button-bg: #1976d2;
  --button-hover: #1565c0;
}

body.dark-mode {
  --bg-color: #1e1e1e;
  --text-color: #ddd;
  --input-bg: #2e2e2e;
  --input-border: #444;
  --button-bg: #4444aa;
  --button-hover: #6666cc;
}

body {
  font-family: Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  margin: 0;
  padding: 20px;
  transition: background-color 0.3s, color 0.3s;
}

h1 {
  text-align: center;
  font-size: 2em;
  margin-bottom: 20px;
}

.grid-wrapper {
  overflow-x: auto;
  margin-bottom: 10px;
  display: flex;
  justify-content: center;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
}

.bit-labels,
.bit-field {
  display: grid;
  grid-template-columns: repeat(32, 30px); /* exactly 32 bits */
  gap: 2px;
  text-align: center;
  min-width: 1024px;
}

/* Change this for the size adjust */
.bit-labels div,
.bit-field input {
  width: 30px;      /* Change this for the size adjust */
  min-width: 30px;  /* Change this for the size adjust */
  max-width: 30px;  /* Change this for the size adjust */
  text-align: center;
  box-sizing: border-box;
  font-size: 12px;  /* Change this for the size adjust */
}

.bit-labels div.group-space,
.bit-field div.group-space {
  pointer-events: none;
  background: none;
  width: 10px;
}

/* Change this for the size adjust */
.bit-field input {
  padding: 4px;                         /* Change this for the size adjust */
  font-family: monospace;
  font-size: 14px;                      /* Change this for the size adjust */
  background-color: var(--input-bg);
  color: var(--text-color);
  border: 1px solid var(--input-border);
  border-radius: 3px;
}

.bit-field input.bit-1 {
  background-color: #c8f7c5; /* light green when value is 1 */
  color: black;
  font-weight: bold;
}

.controls,
.extra-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 20px;
}

button {
  padding: 10px 15px;
  background-color: var(--button-bg);
  border: none;
  color: white;
  border-radius: 5px;
  cursor: pointer;
  font-size: 1em;
  transition: background 0.2s ease;
}

button:hover {
  background-color: var(--button-hover);
}

.label-display {
  margin-top: 20px;
  font-size: 16px;
  text-align: center;
}

.inputs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 15px;
}

.inputs input[type="text"] {
  padding: 8px;
  font-family: monospace;
  font-size: 1em;
  width: 250px;
  box-sizing: border-box;
  background-color: var(--input-bg);
  color: var(--text-color);
  border: 1px solid var(--input-border);
}

@media (max-width: 768px) {
  h1 {
    font-size: 1.5em;
  }

  button {
    font-size: 0.9em;
    padding: 8px 12px;
  }

  .bit-labels,
  .bit-field {
    font-size: 10px;
    min-width: 1080px;
  }

  .inputs {
    flex-direction: column;
    align-items: center;
  }

  .inputs input[type="text"] {
    width: 100%;
    max-width: 90vw;
  }
}

.tool-info {
  max-width: 800px;
  margin: 20px auto;
  padding: 20px;
  background: #f9f9f9;
  border-radius: 10px;
  line-height: 1.6;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.tool-info h2 {
  margin-top: 20px;
  color: #333;
}

.tool-info p, .tool-info ul, .tool-info ol {
  font-size: 16px;
  color: #555;
}

.tool-info ul, .tool-info ol {
  padding-left: 20px;
}

.site-footer {
  text-align: center;
  padding: 20px;
  margin-top: 40px;
  font-size: 14px;
  color: #777;
  background-color: #f1f1f1;
}

.site-footer a {
  color: #555;
  text-decoration: none;
  margin: 0 5px;
}

.site-footer a:hover {
  text-decoration: underline;
}