/* Design tokens ----------------------------------------------------- */
:root {
  --bg: #0e1120;
  --panel: #161a2e;
  --panel-raised: #1c2138;
  --border: #2a2f4a;
  --text: #edeef7;
  --muted: #9298b8;
  --accent: #ff6b4a;      /* neon coral - dashboard / city light */
  --accent-soft: #ff6b4a22;
  --accent2: #5b8def;     /* cool synth blue */
  --success: #4ad991;
  --danger: #ff5c6c;
  --radius: 10px;
  --font-display: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(ellipse at top, #171c33 0%, var(--bg) 55%);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.5;
  min-height: 100vh;
}

/* Topbar -------------------------------------------------------------- */
.topbar {
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #12162a 0%, transparent 100%);
}

.topbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 22px 28px;
}

.brand { display: flex; align-items: center; gap: 14px; }

.logo-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #ffb199, var(--accent) 70%);
  box-shadow: 0 0 18px 2px var(--accent-soft);
  flex-shrink: 0;
}

.brand h1 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0;
}

.subtitle {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

/* Layout ---------------------------------------------------------------- */
.layout {
  max-width: 1280px;
  margin: 0 auto;
  padding: 28px;
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 24px;
  align-items: start;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}

.input-panel { position: sticky; top: 20px; }

/* Form fields ------------------------------------------------------------ */
.field { display: block; margin-bottom: 16px; }

.field-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}

.field-label em {
  color: var(--accent);
  font-style: normal;
  font-weight: 500;
  text-transform: none;
  margin-left: 6px;
  font-size: 0.75rem;
}

textarea, select, input[type="text"] {
  width: 100%;
  background: var(--panel-raised);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.9rem;
  resize: vertical;
}

textarea:focus, select:focus, input:focus {
  outline: 2px solid var(--accent2);
  outline-offset: 1px;
  border-color: var(--accent2);
}

.hint { display: block; font-size: 0.72rem; color: var(--muted); margin-top: 4px; }

fieldset.field { border: none; padding: 0; margin: 0 0 16px; }

.checkbox-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.checkbox-grid label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text);
}

.toggle-field { display: flex; align-items: center; justify-content: space-between; }
.toggle-wrap { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--muted); }

.generate-btn {
  width: 100%;
  padding: 13px;
  margin-top: 6px;
  background: linear-gradient(135deg, var(--accent), #ff8f6d);
  color: #17101a;
  border: none;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  cursor: pointer;
  box-shadow: 0 6px 20px -6px var(--accent-soft);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.generate-btn:hover { transform: translateY(-1px); box-shadow: 0 8px 24px -6px var(--accent-soft); }
.generate-btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.form-error {
  color: var(--danger);
  font-size: 0.82rem;
  margin-top: 10px;
}

/* Output panel ------------------------------------------------------------ */
.output-panel { min-height: 420px; }

.empty-state, .loading-state {
  height: 100%;
  min-height: 380px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--muted);
  padding: 40px;
}

.spinner {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
  margin-bottom: 14px;
}

@keyframes spin { to { transform: rotate(360deg); } }

.output-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.output-card {
  background: var(--panel-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.output-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.output-card-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
}

.card-actions { display: flex; gap: 6px; }

.icon-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 6px;
  padding: 5px 9px;
  font-size: 0.75rem;
  cursor: pointer;
  transition: color 0.12s ease, border-color 0.12s ease;
}

.icon-btn:hover { color: var(--text); border-color: var(--accent2); }
.icon-btn.copied { color: var(--success); border-color: var(--success); }

.output-card-body {
  font-size: 0.86rem;
  color: var(--text);
  white-space: pre-wrap;
}

.output-card-body strong {
  color: var(--accent2);
  font-weight: 600;
}

.output-card.loading .output-card-body { color: var(--muted); font-style: italic; }
.output-card.error .output-card-body { color: var(--danger); }

.chip-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 2px; }

.chip {
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 0.76rem;
  font-family: var(--font-mono);
}

.footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.78rem;
  padding: 30px 20px 40px;
}

/* Responsive -------------------------------------------------------------- */
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; padding: 16px; }
  .input-panel { position: static; }
  .output-grid { grid-template-columns: 1fr; }
  .checkbox-grid { grid-template-columns: 1fr; }
}