:root {
  --bg: #0d0d0d;
  --card-bg: #1a1a1a;
  --purple: #9b59b6;
  --orange: #f39c12;
  --text-color: #ecf0f1;
  --muted-text: #bdc3c7;
  --gradient-purple: linear-gradient(90deg, #9b59b6, #8e44ad);
  --gradient-orange: linear-gradient(90deg, #f39c12, #e67e22);
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: 'Tajawal', sans-serif;
  background-color: var(--bg);
  color: var(--text-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}
.container {
  width: 100%;
  max-width: 900px;
  background-color: var(--card-bg);
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
h1 {
  color: var(--purple);
  text-align: center;
  margin-bottom: 20px;
  border-bottom: 2px solid var(--purple);
  padding-bottom: 10px;
}
.feature-options {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 20px;
}
.feature-options button {
  background: var(--gradient-purple);
  color: #fff;
  border: none;
  padding: 12px 25px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 700;
  font-size: 16px;
  transition: background 0.3s, transform 0.2s;
}
.feature-options button.active {
  background: var(--gradient-orange);
}
.feature-options button:hover {
  transform: translateY(-2px);
}
.input-area {
  display: flex;
  flex-direction: column;
  gap: 15px;
}
.input-area textarea {
  width: 100%;
  min-height: 150px;
  background-color: #2c2c2c;
  color: var(--text-color);
  border: 1px solid #444;
  border-radius: 10px;
  padding: 15px;
  font-size: 16px;
  resize: vertical;
}
.input-area select {
  width: 100%;
  padding: 12px;
  background-color: #2c2c2c;
  color: var(--text-color);
  border: 1px solid #444;
  border-radius: 10px;
  font-size: 16px;
  appearance: none;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%23bdc3c7" viewBox="0 0 16 16"><path fill-rule="evenodd" d="M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z"/></svg>');
  background-repeat: no-repeat;
  background-position: right 15px center;
}
.input-area button {
  background: var(--gradient-orange);
  color: #fff;
  border: none;
  padding: 15px 30px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 900;
  font-size: 18px;
  transition: background 0.3s, box-shadow 0.3s;
}
.input-area button:hover {
  box-shadow: 0 5px 20px rgba(243, 156, 18, 0.4);
}
.results-area {
  background-color: #2c2c2c;
  border-radius: 10px;
  padding: 20px;
  min-height: 200px;
  border: 1px solid #444;
}
.results-area h3 {
  color: var(--orange);
  margin-bottom: 15px;
}
.result-text {
  white-space: pre-wrap;
  font-size: 16px;
  line-height: 1.6;
}
.loading-spinner {
  border: 4px solid rgba(255, 255, 255, 0.1);
  border-left-color: #f39c12;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  animation: spin 1s linear infinite;
  display: inline-block;
  vertical-align: middle;
  margin-left: 10px;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}