:root {
  --background: #0f0f0f;
  --panel-bg: #141414;
  --text: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --border: #282828;
  --primary: #ffffff50;
  --radius: 8px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Inter", sans-serif;
}

body {
  background-color: #000;
  color: var(--text);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 40px;
}

.main {
  display: flex;
  width: 100%;
  max-width: 1000px;
  gap: 40px;
}

.left-panel {
  width: 480px;
}

.preview {
  background-color: var(--panel-bg);
  height: 280px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 14px;
  overflow: hidden;
  color: var(--text-secondary);
  font-size: 15px;
  text-align: center;
  padding: 12px;
}
.preview.card-loaded {
  background-color: transparent;
  border: none;
  box-shadow: none;
}

.preview-message {
  margin: 40px;
  margin: 70px;
}

.preview iframe {
  max-height: 100%;
  max-width: 100%;
  margin: auto;
  display: block;
}

.preview.error-loading {
  background-color: var(--panel-bg);
}

.preview a {
  color: var(--primary);
  text-decoration: underline;
}

.code-tabs {
  display: flex;
  margin-bottom: 10px;
  width: 100%;
  gap: 10px;
}

.tab-button {
  flex: 1;
  padding: 10px 0;
  background-color: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: #c0c0c0;
  cursor: pointer;
  font-size: 13px;
  text-transform: uppercase;
  font-weight: 500;
  text-align: center;
  transition: all 0.2s ease;
}

.tab-button:hover {
  background-color: #1d1d1d;
  border-color: #3a3a3a;
  transform: translateY(-1px);
}

.tab-button.active {
  background-color: var(--primary);
  color: rgb(255, 255, 255);
  border-color: var(--primary);
}

.tab-button.active:hover {
  background-color: #ffffff50;
  transform: translateY(-1px);
}

.tab-button.active::after {
  display: none;
}

.code-display {
  background-color: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  color: #00a2ff;
  font-family: monospace;
  font-size: 16px;
  font-weight: 500;
  overflow: auto;
  white-space: normal;
  word-break: break-word;
  margin-bottom: 5px;
  min-height: 70px;
  max-height: none;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
}

.code-display #code-output {
  max-width: 100%;
  margin: 0 auto;
  display: inline;
  line-height: 1.4;
  font-family: "Consolas", "Monaco", "Courier New", monospace;
  overflow-wrap: break-word;
}

.right-panel {
  flex: 1;
}

.content {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 2px;
}

.subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 5px;
  margin-top: 0px;
}

.subtitle a {
  text-decoration: none;
  color: #00a2ff;
}

.form-row {
  display: flex;
  gap: 14px;
  margin-bottom: 12px;
}

.form-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

#youtube_id {
  background-color: #000;
}

label {
  font-size: 13px;
  color: var(--text);
  display: flex;
  justify-content: space-between;
  margin-bottom: 2px;
}

.info-icon {
  color: var(--text-secondary);
  font-size: 10px;
  cursor: help;
}

input[type="text"],
select {
  padding: 8px 10px;
  background-color: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 13px;
  height: 36px;
}

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='6' viewBox='0 0 8 6'%3E%3Cpath fill='%23fff' d='M0 0h8L4 6z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 24px;
}

input[type="range"] {
  width: 100%;
  margin: 8px 0;
}

.copy-button {
  background-color: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 10px;
  width: 100%;
  text-align: center;
  cursor: pointer;
  font-size: 13px;
  margin-top: 6px;
  transition: all 0.2s ease;
}

copy-button:hover {
  background-color: #1d1d1d;
  border-color: #3a3a3a;
  transform: translateY(-1px);
}

.range-value {
  text-align: right;
  font-size: 13px;
  color: var(--text-secondary);
}

.more-info {
  display: flex;
  justify-content: center;
  margin-top: 14px;
}

.more-info-link {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text);
  text-decoration: none;
  background-color: var(--panel-bg);
  border: 1px solid var(--border);
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 13px;
}

.more-info-link:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

.checkbox-group {
  display: flex;
  align-items: center;
  height: 47px;
  padding-top: 24px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  width: 100%;
  gap: 10px;
  cursor: pointer;
  color: var(--text);
  font-size: 13px;
  position: relative;
}

.checkbox-label input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.checkbox-label .checkmark {
  position: relative;
  display: inline-block;
  width: 22px;
  height: 22px;
  background-color: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: 40%;
  margin-left: 10px;
  order: 2;
  transition: all 0.2s ease;
}

.checkbox-label:hover .checkmark {
  border-color: #3a3a3a;
}

.checkbox-label input:checked ~ .checkmark {
  background-color: var(--primary);
  border-color: var(--primary);
}

.checkbox-label .checkmark:after {
  content: "";
  position: absolute;
  display: none;
  left: 8px;
  top: 4px;
  width: 5px;
  height: 10px;
  border: solid rgb(255, 255, 255);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.checkbox-label input:checked ~ .checkmark:after {
  display: block;
}

@media (max-width: 900px) {
  .main {
    flex-direction: column;
  }

  .title,
  .subtitle {
    order: 0;
  }

  .right-panel {
    order: 1;
    margin-bottom: 20px;
  }

  .left-panel {
    order: 2;
    width: 100%;
    margin-bottom: 20px;
  }

  .right-panel .content {
    display: flex;
    flex-direction: column;
  }

  .form-row:first-of-type {
    order: 2;
  }

  .form-row:not(:first-of-type),
  .checkbox-group,
  .more-info {
    order: 3;
  }

  #youtube_id {
    font-size: 14px;
    height: 42px;
  }
}