:root {
  --bg: #212121;
  --surface: #2f2f2f;
  --surface-hover: #383838;
  --border: #444;
  --text: #ececec;
  --text-secondary: #8e8e8e;
  --accent: #FF6600;
  --accent-hover: #ff8533;
  --success: #4caf50;
  --danger: #f44336;
  --radius: 12px;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font);
  font-size: 14px;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; font-weight: 500; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

header {
  padding: 24px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}
header h2 { font-size: 20px; font-weight: 600; }
header h3 { font-size: 14px; color: var(--text-secondary); font-weight: 400; margin-top: 4px; }

footer {
  margin-top: auto;
  padding: 16px 24px;
  text-align: right;
  font-size: 12px;
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
}

.logo { height: 20px; vertical-align: middle; margin-left: 4px; }
.biglogo { height: 80px; margin-bottom: 24px; }

/* Cards / Pages */
.card, page {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  max-width: 480px;
  width: 90%;
  margin: 24px auto;
}

/* Form elements */
input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.2s;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
}
textarea { height: 100px; resize: vertical; }

label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

.form-group { margin-bottom: 16px; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 24px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.2s;
  color: #fff;
}
.btn-primary { background: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); }
.btn-success { background: var(--success); }
.btn-success:hover { background: #66bb6a; }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: #e57373; }
.btn-block { display: block; width: 100%; }

/* Toggle visibility */
.toggle-content { display: none; }
.toggle-content.is-visible { display: block; }

/* Text utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-secondary { color: var(--text-secondary); }
.text-italic { font-style: italic; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-16 { margin-bottom: 16px; }
.gap-8 { gap: 8px; }

/* Demo links */
.demo-links { list-style: none; padding: 0; }
.demo-links li { margin-bottom: 12px; }
.demo-links a {
  display: block;
  padding: 12px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: background 0.2s, border-color 0.2s;
}
.demo-links a:hover {
  background: var(--surface-hover);
  border-color: var(--accent);
  text-decoration: none;
}

/* Visualizer */
.visualizer {
  width: 100%;
  height: 60px;
  border-radius: 8px;
  background: var(--accent);
}

/* Target text */
.target-text { font-style: italic; color: var(--accent); }

/* Recording buttons */
.recording-buttons {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 16px;
}

/* Scrollable list */
.scrollable {
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  padding: 8px;
}

/* Error message */
.error-msg { color: var(--danger); font-size: 13px; margin-top: 8px; }

/* Info box */
.info-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  margin-top: 16px;
  word-break: break-all;
}
.info-box p { margin-bottom: 4px; }
.info-box strong { color: var(--text-secondary); }