:root {
  color-scheme: dark;
  --bg: #0a0f1a;
  --panel: #111827;
  --panel-2: #172033;
  --line: #253044;
  --text: #f7fafc;
  --muted: #aab6c7;
  --accent: #24c6b0;
  --accent-2: #ffd166;
  --danger: #ff6b6b;
  --good: #71d99e;
}

* {
  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;
}

button,
textarea,
input {
  font: inherit;
}

.shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
}

.sidebar {
  border-right: 1px solid var(--line);
  background: #0d1422;
  padding: 18px 14px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 4px 6px 12px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(36, 198, 176, 0.55);
  border-radius: 8px;
  color: var(--accent);
  font-weight: 800;
}

.brand-name {
  font-size: 20px;
  font-weight: 800;
}

.brand-note,
.eyebrow,
.tool-panel p,
.message,
.trust-box span {
  color: var(--muted);
}

.tool-nav {
  display: grid;
  gap: 8px;
}

.nav-item,
button {
  border: 1px solid var(--line);
  background: #101928;
  color: var(--text);
  border-radius: 8px;
  min-height: 40px;
  padding: 8px 12px;
  cursor: pointer;
}

.nav-item {
  text-align: left;
}

.nav-item.active,
button.primary {
  border-color: transparent;
  background: var(--accent);
  color: #061015;
  font-weight: 800;
}

.trust-box {
  margin-top: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #101928;
  display: grid;
  gap: 6px;
}

.workspace {
  padding: 24px;
  min-width: 0;
}

.topbar,
.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0;
  font-weight: 800;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 22px;
  font-size: 30px;
  line-height: 1.15;
}

h2 {
  margin-bottom: 8px;
  font-size: 22px;
}

.status-pill {
  white-space: nowrap;
  color: var(--accent-2);
  border: 1px solid rgba(255, 209, 102, 0.35);
  border-radius: 999px;
  padding: 8px 12px;
  background: rgba(255, 209, 102, 0.08);
}

.tool-panel {
  display: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 20px;
}

.tool-panel.active {
  display: block;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.editor-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.editor {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.editor span,
.time-box span,
.url-results span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

textarea,
input,
pre {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-2);
  color: var(--text);
  outline: none;
}

textarea {
  min-height: 390px;
  padding: 14px;
  resize: vertical;
  font-family: "Cascadia Code", Consolas, monospace;
  line-height: 1.55;
}

.editor.tall textarea {
  min-height: 170px;
}

input {
  height: 46px;
  padding: 0 12px;
}

.message {
  margin-top: 12px;
  min-height: 22px;
}

.message.error {
  color: var(--danger);
}

.message.good {
  color: var(--good);
}

.result-list {
  margin-top: 14px;
  display: grid;
  gap: 8px;
}

.diff-row {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  background: #101928;
  overflow-wrap: anywhere;
}

.diff-added {
  border-color: rgba(113, 217, 158, 0.45);
}

.diff-removed {
  border-color: rgba(255, 107, 107, 0.45);
}

.diff-changed {
  border-color: rgba(255, 209, 102, 0.45);
}

.jwt-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

pre {
  margin: 0;
  min-height: 220px;
  padding: 14px;
  overflow: auto;
  font-family: "Cascadia Code", Consolas, monospace;
  line-height: 1.5;
}

.time-box {
  display: grid;
  gap: 16px;
  margin-top: 12px;
}

.time-box label {
  display: grid;
  gap: 8px;
}

.time-results,
.url-results {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.time-results div,
.url-results div {
  display: grid;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #101928;
  padding: 14px;
  overflow-wrap: anywhere;
}

.url-results {
  margin-top: 2px;
}

.tool-content {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 16px;
}

.tool-content h3,
.tool-content h4 {
  margin: 0 0 8px;
}

.tool-content h3 {
  font-size: 18px;
}

.tool-content h4 {
  font-size: 14px;
}

.tool-content p,
.tool-content ul {
  margin: 0;
}

.tool-content ul {
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.65;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 0.65fr);
  gap: 16px;
}

.related-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.related-tools button {
  min-height: 34px;
  padding: 6px 10px;
  font-size: 13px;
}

@media (max-width: 860px) {
  .shell {
    grid-template-columns: 1fr;
  }

  .workspace {
    order: 1;
  }

  .sidebar {
    position: static;
    order: 2;
  }

  .tool-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .topbar,
  .panel-head {
    display: grid;
  }

  .status-pill {
    white-space: normal;
  }

  .editor-grid,
  .jwt-grid,
  .time-results,
  .url-results,
  .content-grid {
    grid-template-columns: 1fr;
  }

  textarea {
    min-height: 260px;
  }
}

@media (max-width: 480px) {
  .workspace {
    padding: 14px;
  }

  .tool-panel {
    padding: 14px;
  }

  h1 {
    font-size: 24px;
  }

  .actions {
    justify-content: stretch;
  }

  .actions button {
    flex: 1 1 120px;
  }
}