:root {
  --brand: #ff8a00;
  --preview-theme-color: var(--brand);
  /* Light Mode Colors */
  --text-primary: #1c1c1e;
  --text-secondary: #8a8a8e;
  --bg-main: #f2f2f7;
  --bg-panel: #ffffff;
  --border-color: #e5e5ea;
  --bg-component: #f2f2f7;

  /* Fallback for preview - will be overridden by JS */
  --preview-bg-panel: var(--bg-panel);
  --preview-bg-card: color-mix(in srgb, var(--preview-theme-color) 10%, #f9f9f9);
  --preview-border-color: color-mix(in srgb, var(--preview-theme-color) 20%, #e5e5ea);
  --preview-bg-component: color-mix(in srgb, var(--preview-theme-color) 10%, #f9f9f9);
}

body, html {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  height: 100%;
}

.layout {
  display: flex;
  height: 100vh;
  gap: 24px;
  padding: 24px;
  box-sizing: border-box;
}

.chat-panel {
  width: 380px;
  flex-shrink: 0;
  background-color: var(--bg-panel);
  border-radius: 24px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.chat-header {
  font-size: 20px;
  font-weight: 700;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
}

.chat-header .dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--brand);
  margin-right: 12px;
  box-shadow: 0 0 10px var(--brand);
  transition: background-color .4s ease, box-shadow .4s ease;
}

.messages {
  flex-grow: 1;
  overflow-y: auto;
  padding-right: 10px;
}

.msg {
  padding: 12px 16px;
  border-radius: 18px;
  line-height: 1.5;
  margin-bottom: 12px;
  max-width: 90%;
}

.msg.ai {
  background-color: var(--bg-component);
  border-top-left-radius: 4px;
}

.msg.me {
  background-color: var(--brand);
  color: white;
  margin-left: auto;
  border-top-right-radius: 4px;
  transition: background-color .4s ease;
}

.composer {
  display: flex;
  margin-top: 16px;
}

.composer textarea {
  flex-grow: 1;
  border: none;
  background-color: var(--bg-component);
  color: var(--text-primary);
  border-radius: 12px;
  padding: 14px 16px;
  font-size: 16px;
  outline: none;
  resize: none;
  font-family: inherit;
  line-height: 1.4;
}

.composer button {
  border: none;
  background-color: var(--brand);
  color: white;
  border-radius: 12px;
  padding: 0 20px;
  margin-left: 10px;
  cursor: pointer;
  font-weight: 600;
  transition: background-color .4s ease;
}

.preview-panel {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  background-color: transparent;
  border-radius: 0;
  padding: 0;
  box-shadow: none;
  transition: none;
  min-height: 0; /* Ensure panel can shrink if needed */
}

.card {
  background-color: var(--preview-bg-card);
  border: 1px solid var(--preview-border-color);
  border-radius: 24px;
  padding: 30px;
  width: 100%;
  margin: auto;
  transition: background-color .4s ease, border-color .4s ease, opacity 0.4s ease, transform 0.4s ease;
  position: relative;
  overflow: hidden;
  height: 100%;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
}

/* State management */
.card.is-blank {
  opacity: 0;
  transform: scale(0.98);
  pointer-events: none;
}

.card.is-blank .card-content-wrapper,
.card.is-title-only .card-content-wrapper,
.card.is-loading .card-content-wrapper {
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
}

.card.is-blank .title {
  opacity: 0;
  transform: translateY(10px);
}

.card.is-title-only .title,
.card.is-loading .title,
.card.is-ready .title {
  opacity: 1;
  transform: translateY(0);
}

.card.is-ready .card-content-wrapper {
  opacity: 1;
  transform: translateY(0);
}

.title {
  font-size: 24px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  text-align: center;
  margin: 0 0 30px 0;
  transition: opacity 0.4s ease, transform 0.4s ease;
  flex-shrink: 0;
}

/* Anti-Spam Specific Styles */
.card-content-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 24px;
  flex-grow: 1;
  min-height: 0;
  min-width: 0; /* Prevents content from forcing grid column to expand */
}

.rules-editor, .test-simulator {
  background-color: var(--preview-bg-component);
  padding: 20px;
  border-radius: 16px;
  border: 1px solid var(--preview-border-color);
  display: flex;
  flex-direction: column;
  min-height: 0; /* Prevents flexbox from overflowing its grid container */
  min-width: 0; /* Prevents content from forcing grid column to expand */
}

.rules-editor h3, .test-simulator h3 {
  margin-top: 0;
  border-bottom: 1px solid var(--preview-border-color);
  padding-bottom: 12px;
  margin-bottom: 16px;
  flex-shrink: 0;
}

#rulesContainer {
  flex-grow: 1;
  overflow-y: auto;
  padding-right: 10px;
}

.rule {
  background: #fff;
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 10px;
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.rule-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.rule-header select {
  flex-grow: 1;
}
.rule-params input {
  width: 60px;
}
.rule button.delete-rule-btn {
  background: none;
  border: none;
  color: #ff4d6d;
  cursor: pointer;
  font-size: 16px;
}

.spam-threshold {
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.spam-threshold input {
  width: 60px;
  padding: 8px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.add-rule-btn, .run-tests-btn {
  width: 100%;
  padding: 12px;
  background-color: var(--brand);
  color: white;
  border: none;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 16px;
  flex-shrink: 0;
}
.run-tests-btn:disabled {
  background-color: #ccc;
  cursor: not-allowed;
}

.score-counter {
  text-align: right;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 12px;
  min-height: 20px;
  font-size: 14px;
}

.test-cases-container {
  overflow-y: auto;
  padding-right: 10px;
  flex-grow: 1; /* Make this container take up available space */
}

.test-case-placeholder {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  color: var(--text-secondary);
  text-align: center;
  padding: 20px;
  font-size: 14px;
}

.test-case {
  background: #fff;
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 10px;
  border-left: 4px solid #ccc;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color 0.5s ease;
}

.test-case.visible {
  opacity: 1;
  transform: translateY(0);
}
.test-case.correct { border-color: #06D6A0; }
.test-case.incorrect { border-color: #EF476F; }


.test-case .header {
  display: flex;
  justify-content: space-between;
  font-weight: 600;
  margin-bottom: 8px;
  font-size: 14px;
}
.test-case .header .score {
  font-weight: normal;
  color: var(--text-secondary);
}
.test-case .result.spam { color: #EF476F; font-weight: bold; }
.test-case .result.not-spam { color: #06D6A0; font-weight: bold; }
.test-case .content {
  font-family: Menlo, Monaco, Consolas, "Courier New", monospace;
  white-space: pre-wrap;
  font-size: 14px;
  background: var(--bg-main);
  padding: 8px;
  border-radius: 6px;
  overflow-wrap: break-word; /* Force long text to wrap */
  word-break: break-all; /* More aggressive wrapping for unbreakable strings */
}
.test-case .content mark {
  background-color: color-mix(in srgb, var(--brand) 40%, transparent);
  border-radius: 3px;
  padding: 1px 3px;
}