:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --panel: #ffffff;
  --text: #17202a;
  --muted: #657080;
  --line: #dce1e8;
  --accent: #1769e0;
  --accent-dark: #0f55ba;
  --danger: #c53232;
  --danger-dark: #9f2525;
  --shadow: 0 10px 28px rgba(20, 28, 38, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  line-height: 1.08;
}

h2 {
  font-size: 1.1rem;
}

p,
span {
  color: var(--muted);
}

code {
  display: block;
  max-width: 100%;
  overflow-wrap: anywhere;
  color: #26313f;
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 0.86rem;
}

.center {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.app {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 64px;
}

.topbar,
.sectionHeader,
.configItem,
.actions,
.inlineForm {
  display: flex;
  gap: 16px;
}

.topbar,
.sectionHeader,
.configItem {
  align-items: flex-start;
  justify-content: space-between;
}

.topbar {
  margin-bottom: 24px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 22px;
  margin-bottom: 18px;
}

.panel.small {
  width: min(520px, 100%);
}

.panel.small p {
  margin: 12px 0 20px;
}

.form,
.inlineForm {
  margin-top: 18px;
}

.form {
  display: grid;
  gap: 14px;
}

.inlineForm {
  align-items: end;
}

label {
  display: grid;
  gap: 7px;
  color: #2d3745;
  font-weight: 650;
}

.inlineForm label {
  flex: 1;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 12px;
  background: #fff;
  color: var(--text);
  font: inherit;
}

textarea {
  resize: vertical;
  min-height: 120px;
}

input:focus,
textarea:focus {
  outline: 2px solid rgba(23, 105, 224, 0.2);
  border-color: var(--accent);
}

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

.check input {
  width: 18px;
  height: 18px;
}

button,
.button {
  border: 0;
  border-radius: 6px;
  padding: 10px 14px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

button:hover,
.button:hover {
  background: var(--accent-dark);
}

button.ghost {
  background: #eef3fa;
  color: #25364d;
}

button.ghost:hover {
  background: #dde8f6;
}

button.danger {
  background: var(--danger);
}

button.danger:hover {
  background: var(--danger-dark);
}

.configList {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.configItem {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #fbfcfe;
}

.configMeta {
  display: grid;
  gap: 7px;
  min-width: 0;
}

.actions {
  flex-wrap: wrap;
}

.empty {
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
  padding: 20px;
  text-align: center;
}

.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  max-width: min(420px, calc(100vw - 40px));
  background: #17202a;
  color: #fff;
  border-radius: 8px;
  padding: 12px 14px;
  box-shadow: var(--shadow);
}

.toast.error {
  background: var(--danger);
}

.hidden {
  display: none !important;
}

@media (max-width: 720px) {
  .topbar,
  .sectionHeader,
  .configItem,
  .inlineForm {
    display: grid;
  }

  .actions {
    justify-content: start;
  }

  button,
  .button {
    width: 100%;
    text-align: center;
  }
}