:root {
  color-scheme: light dark;
  --bg: #f7f7f2;
  --text: #171717;
  --muted: #64645f;
  --panel: #ffffff;
  --line: #d8d6cc;
  --primary: #0f766e;
  --primary-text: #ffffff;
  --accent: #b45309;
  --danger: #b91c1c;
  --shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

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

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px clamp(16px, 4vw, 40px);
  background: #111827;
  color: white;
}

h1 {
  margin: 0;
  font-size: clamp(1.2rem, 2.4vw, 1.8rem);
  font-weight: 760;
}

h2 {
  margin: 0 0 12px;
  font-size: 1rem;
}

.status {
  min-height: 1.25rem;
  margin: 4px 0 0;
  color: #cbd5e1;
  font-size: 0.9rem;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}

.tab {
  min-height: 48px;
  border: 0;
  background: #ece8df;
  color: var(--text);
  font: inherit;
  font-weight: 700;
}

.tab.active {
  background: var(--panel);
  color: var(--primary);
  box-shadow: inset 0 -3px 0 var(--primary);
}

main {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: clamp(16px, 4vw, 32px);
}

.view {
  display: none;
}

.view.active {
  display: grid;
  gap: 18px;
}

.panel,
.result {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.panel {
  display: grid;
  gap: 12px;
  padding: clamp(16px, 4vw, 24px);
}

.panel.compact {
  box-shadow: none;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  font: inherit;
  padding: 10px 12px;
}

textarea {
  resize: vertical;
  line-height: 1.5;
}

button {
  min-height: 44px;
  border: 0;
  border-radius: 6px;
  background: var(--primary);
  color: var(--primary-text);
  font: inherit;
  font-weight: 760;
  padding: 0 18px;
  cursor: pointer;
}

button:disabled {
  cursor: wait;
  opacity: 0.65;
}

.icon-button {
  width: 44px;
  padding: 0;
  border-radius: 50%;
  font-size: 1.4rem;
}

.input-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

.grid.two {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(120px, 180px);
  gap: 12px;
  align-items: end;
}

.check {
  min-height: 44px;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
}

.check input {
  width: 20px;
  min-height: 20px;
}

.output:empty {
  display: none;
}

.result {
  position: relative;
  overflow: hidden;
}

.result-actions {
  display: flex;
  justify-content: flex-end;
  padding: 10px;
  background: #f1efe8;
  border-bottom: 1px solid var(--line);
}

.copy-button {
  min-height: 36px;
  background: var(--accent);
}

pre {
  margin: 0;
  padding: 18px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92rem;
  line-height: 1.55;
}

dl {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 8px 14px;
  margin: 0;
}

dt {
  color: var(--muted);
  font-weight: 760;
}

dd {
  margin: 0;
  overflow-wrap: anywhere;
}

@media (max-width: 700px) {
  .tabs {
    grid-template-columns: repeat(5, minmax(64px, 1fr));
    overflow-x: auto;
  }

  .input-row,
  .grid.two {
    grid-template-columns: 1fr;
  }

  main {
    padding: 12px;
  }

  .topbar {
    padding: 14px 12px;
  }

  dl {
    grid-template-columns: 1fr;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #18181b;
    --text: #f4f4f5;
    --muted: #a1a1aa;
    --panel: #242428;
    --line: #3f3f46;
    --primary: #14b8a6;
    --primary-text: #042f2e;
    --accent: #f59e0b;
  }

  .tab {
    background: #202024;
  }

  .result-actions {
    background: #202024;
  }
}