/* Nginx Config Converter — Neutral Dark */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #3B82F6;
  --primary-dim: rgba(59,130,246,0.12);
  --accent: #10B981;
  --accent-dim: rgba(16,185,129,0.12);
  --bg: #111113;
  --bg-card: #1A1A1F;
  --bg-input: #0E0E10;
  --border: rgba(59,130,246,0.10);
  --text: #E5E7EB;
  --text-dim: #9CA3AF;
  --text-muted: #4B5563;
  --radius: 12px;
  --radius-sm: 8px;
  --font: 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', monospace;
  --transition: 0.2s ease;
}

html { font-size: 16px; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font); background: var(--bg); color: var(--text); min-height: 100vh; line-height: 1.6; }

.header { border-bottom: 1px solid var(--border); background: rgba(26,26,31,0.95); backdrop-filter: blur(12px); position: sticky; top: 0; z-index: 10; }
.header-inner { max-width: 1000px; margin: 0 auto; padding: 12px 20px; display: flex; align-items: center; justify-content: space-between; }
.header-left { display: flex; align-items: center; gap: 10px; }
.logo-icon { font-size: 1.2rem; width: 38px; height: 38px; display: flex; align-items: center; justify-content: center; background: var(--primary-dim); border-radius: var(--radius-sm); }
.header h1 { font-size: 1.05rem; font-weight: 700; }
.subtitle { font-size: 0.72rem; color: var(--text-dim); }

.mode-select { padding: 6px 10px; font-family: var(--font); font-size: 0.75rem; color: var(--text-dim); background: var(--bg-card); border: 1px solid var(--border); border-radius: 6px; outline: none; cursor: pointer; }

.main { max-width: 1000px; margin: 0 auto; padding: 20px; }
.panels { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.panel { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; }
.panel-header { display: flex; align-items: center; justify-content: space-between; padding: 8px 14px; border-bottom: 1px solid var(--border); }
.panel-label { font-size: 0.72rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.btn-copy { padding: 3px 10px; font-family: var(--font); font-size: 0.68rem; font-weight: 500; color: var(--accent); background: var(--accent-dim); border: 1px solid rgba(16,185,129,0.2); border-radius: 4px; cursor: pointer; }

.code-editor { flex: 1; min-height: 400px; padding: 12px 14px; font-family: var(--mono); font-size: 0.75rem; line-height: 1.6; color: var(--primary); background: var(--bg-input); border: none; outline: none; resize: none; }
.code-output { flex: 1; min-height: 400px; padding: 12px 14px; font-family: var(--mono); font-size: 0.75rem; line-height: 1.6; color: var(--accent); overflow: auto; white-space: pre-wrap; word-break: break-all; }

.toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 200; display: flex; flex-direction: column-reverse; gap: 8px; }
.toast { padding: 10px 16px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm); box-shadow: 0 4px 24px rgba(0,0,0,0.5); font-size: 0.82rem; animation: toastIn 0.3s ease; }
@keyframes toastIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

@media (max-width: 768px) { .panels { grid-template-columns: 1fr; } }