:root {
  --bg: #10140f;
  --bg-2: #171d15;
  --ink: #e7eedc;
  --muted: #8b9578;
  --line: #2a3326;
  --accent: #c6f355;
  --warn: #e7b549;
  --bad: #e26d5a;
  --ok: #7ad38a;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(1200px 400px at 10% -10%, #1d2818 0%, transparent 50%),
    var(--bg);
  color: var(--ink);
  font: 15px/1.45 "Segoe UI", "IBM Plex Sans", sans-serif;
}

.frame {
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 20px 48px;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--line);
}

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

.brand h1, .panel-head h2, .kicker {
  margin: 0;
}

.brand h1 {
  font-size: 22px;
  letter-spacing: -0.03em;
}

.kicker {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.led {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--warn);
  box-shadow: 0 0 0 4px rgba(231, 181, 73, 0.15);
}

.led[data-state="proxy_up"] {
  background: var(--ok);
  box-shadow: 0 0 0 4px rgba(122, 211, 138, 0.16);
}

.led[data-state="waiting_config"] {
  background: #6b6458;
  box-shadow: none;
}

.top-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.pill {
  border: 1px solid var(--line);
  padding: 6px 10px;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
  gap: 16px;
}

.panel {
  background: var(--bg-2);
  border: 1px solid var(--line);
  padding: 16px;
}

.panel-head {
  margin-bottom: 12px;
}

.panel-head.with-action {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.panel-head.with-action .ghost {
  flex-shrink: 0;
  white-space: nowrap;
}

.howto {
  margin: 0 0 14px;
  padding: 14px;
  border: 1px dashed var(--line);
  background: #0c100b;
}

.howto ol {
  margin: 0 0 14px;
  padding-left: 1.2em;
  color: var(--ink);
  font-size: 14px;
}

.howto li + li {
  margin-top: 6px;
}

.howto img {
  display: block;
  width: min(100%, 320px);
  height: auto;
  border: 1px solid var(--line);
}

.usage-panel {
  margin-top: 16px;
}

.howto.usage {
  padding-top: 12px;
}

.usage-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.usage-grid h3 {
  margin: 0 0 8px;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.howto.usage p {
  margin: 0 0 10px;
  color: var(--ink);
  font-size: 14px;
}

.howto.usage p code, .panel-head p code {
  font: 12px/1.4 ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color: var(--accent);
}

.code-block {
  position: relative;
  margin: 0 0 12px;
}

.code-block pre {
  margin: 0;
  padding: 12px 96px 12px 12px;
  overflow-x: auto;
  background: #080b07;
  border: 1px solid var(--line);
  color: var(--ink);
  font: 12px/1.5 ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

.code-block .copy {
  position: absolute;
  top: 6px;
  right: 6px;
  padding: 4px 8px;
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  background: #10140f;
}

.panel-head p, .hint {
  color: var(--muted);
  font-size: 13px;
  margin: 8px 0 0;
}

textarea, input[type="password"] {
  width: 100%;
  background: #0c100b;
  color: var(--ink);
  border: 1px solid var(--line);
  padding: 12px;
  font: 13px/1.5 ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

textarea {
  min-height: 460px;
  resize: vertical;
}

textarea:focus, input:focus {
  outline: 1px solid var(--accent);
}

.actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

button {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  padding: 10px 14px;
  cursor: pointer;
  font: inherit;
}

button.primary {
  background: var(--accent);
  color: #1a220f;
  border-color: var(--accent);
  font-weight: 650;
}

button.ghost:hover, button.primary:hover {
  filter: brightness(1.08);
}

button.wide {
  width: 100%;
  margin-top: 12px;
}

.kv {
  margin: 0;
}

.kv > div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 8px;
  padding: 8px 0;
  border-top: 1px solid var(--line);
}

.kv dt {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.kv dd {
  margin: 0;
  word-break: break-all;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px;
}

.flash {
  margin: 12px 0 0;
  font-size: 14px;
}

.flash.ok { color: var(--ok); }
.flash.error { color: var(--bad); }

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
}

.login-card {
  width: min(420px, 100%);
}

.login-form {
  display: grid;
  gap: 12px;
}

.login-form label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 860px) {
  .grid { grid-template-columns: 1fr; }
  .usage-grid { grid-template-columns: 1fr; }
  textarea { min-height: 320px; }
}