:root {
  --bg: #0f0f12;
  --surface: #1a1a22;
  --surface-2: #242430;
  --border: #2e2e3a;
  --text: #f0f0f5;
  --muted: #9a9aad;
  --accent: #7c5cff;
  --accent-hover: #6a4ae8;
  --success: #3ecf8e;
  --warning: #f5a623;
  --radius: 12px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

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

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

.container--wide { max-width: 960px; }

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.logo span { color: var(--accent); }

.badge {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--muted);
  border: 1px solid var(--border);
}

.badge--warning {
  background: rgba(245, 166, 35, 0.12);
  color: var(--warning);
  border-color: rgba(245, 166, 35, 0.3);
}

h1 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
}

.subtitle {
  color: var(--muted);
  margin-bottom: 2rem;
  font-size: 1rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}

label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--muted);
}

input[type="text"],
input[type="password"],
textarea {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font);
  font-size: 0.95rem;
  padding: 0.75rem 1rem;
  transition: border-color 0.15s;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
}

textarea { resize: vertical; min-height: 180px; }

textarea.prompt-editor {
  min-height: 420px;
  font-family: "Cascadia Code", "Consolas", monospace;
  font-size: 0.85rem;
  line-height: 1.5;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1.4rem;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}

.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover { background: var(--accent-hover); }

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

.btn-ghost:hover { color: var(--text); border-color: var(--muted); }

.actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}

.alert {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-size: 0.875rem;
  margin-bottom: 1.25rem;
}

.alert-error {
  background: rgba(255, 80, 80, 0.1);
  border: 1px solid rgba(255, 80, 80, 0.3);
  color: #ff8080;
}

.alert-success {
  background: rgba(62, 207, 142, 0.1);
  border: 1px solid rgba(62, 207, 142, 0.3);
  color: var(--success);
}

.result-block {
  white-space: pre-wrap;
  font-size: 0.95rem;
  line-height: 1.7;
}

.result-block h3,
.result-block strong {
  color: var(--accent);
}

.meta {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.5rem;
}

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--muted);
  text-align: center;
}

.source-preview {
  font-size: 0.85rem;
  color: var(--muted);
  background: var(--surface-2);
  border-radius: 8px;
  padding: 1rem;
  max-height: 120px;
  overflow: hidden;
  margin-bottom: 1rem;
}