:root {
  /* Web Tools UI Kit: shared design tokens */
  color-scheme: light dark;

  /* Typography */
  --wt-font-sans: 'Avenir Next', Avenir, 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --wt-font-serif: 'Iowan Old Style', 'Palatino Linotype', Palatino, Georgia, serif;
  --wt-font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono',
    'Courier New', monospace;

  /* Light */
  --wt-bg: #f6f7fb;
  --wt-fg: #0b1221;
  --wt-muted: #52607a;
  --wt-border: rgba(15, 23, 42, 0.12);
  --wt-panel: rgba(255, 255, 255, 0.82);
  --wt-panel-solid: #ffffff;
  --wt-surface: rgba(255, 255, 255, 0.65);
  --wt-input: rgba(255, 255, 255, 0.85);
  --wt-accent: #2563eb;
  --wt-accent-2: #0ea5e9;
  --wt-accent-hover: #1d4ed8;
  --wt-accent-soft: rgba(37, 99, 235, 0.12);
  --wt-danger: #e11d48;
  --wt-success: #16a34a;
  --wt-warning: #d97706;

  --wt-shadow-sm: 0 2px 12px rgba(2, 6, 23, 0.08);
  --wt-shadow-md: 0 18px 50px rgba(2, 6, 23, 0.14);
  --wt-radius-sm: 10px;
  --wt-radius-md: 16px;
  --wt-radius-lg: 20px;

  /* Aliases for existing pages (keep pages working while unifying look) */
  --bg: var(--wt-bg);
  --fg: var(--wt-fg);
  --text: var(--wt-fg);
  --muted: var(--wt-muted);
  --border: var(--wt-border);
  --panel: var(--wt-panel-solid);
  --pane-bg: var(--wt-panel-solid);
  --header-bg: rgba(255, 255, 255, 0.72);
  --header-fg: var(--wt-fg);
  --accent: var(--wt-accent);
  --accent-hover: var(--wt-accent-hover);
  --accent-soft: var(--wt-accent-soft);
  --shadow: var(--wt-shadow-md);
  --shadow-sm: var(--wt-shadow-sm);

  --bg-body: var(--wt-bg);
  --bg-card: var(--wt-panel-solid);
  --fg-primary: var(--wt-fg);
  --fg-secondary: var(--wt-muted);
  --input-bg: var(--wt-input);

  --bg-app: var(--wt-bg);
  --bg-panel: var(--wt-panel-solid);
  --text-main: var(--wt-fg);
  --text-muted: var(--wt-muted);
  --primary: var(--wt-accent);
  --primary-hover: var(--wt-accent-hover);
}

[data-theme='dark'] {
  color-scheme: dark;

  --wt-bg: #070b16;
  --wt-fg: #e6edff;
  --wt-muted: #96a3c1;
  --wt-border: rgba(226, 237, 255, 0.12);
  --wt-panel: rgba(15, 23, 42, 0.82);
  --wt-panel-solid: #0f172a;
  --wt-surface: rgba(15, 23, 42, 0.56);
  --wt-input: rgba(9, 14, 30, 0.72);
  --wt-accent: #7aa2f7;
  --wt-accent-2: #22d3ee;
  --wt-accent-hover: #9bb7ff;
  --wt-accent-soft: rgba(122, 162, 247, 0.14);

  --wt-danger: #fb7185;
  --wt-success: #34d399;
  --wt-warning: #fbbf24;

  --wt-shadow-sm: 0 2px 14px rgba(0, 0, 0, 0.4);
  --wt-shadow-md: 0 26px 60px rgba(0, 0, 0, 0.55);

  --header-bg: rgba(15, 23, 42, 0.78);
  --header-fg: var(--wt-fg);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body.wt {
  margin: 0;
  font-family: var(--wt-font-sans);
  color: var(--wt-fg);
  background:
    radial-gradient(1000px 500px at 10% 0%, rgba(37, 99, 235, 0.16), transparent 55%),
    radial-gradient(900px 600px at 90% 15%, rgba(14, 165, 233, 0.12), transparent 55%),
    radial-gradient(900px 700px at 60% 85%, rgba(37, 99, 235, 0.08), transparent 60%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.55), transparent 42%),
    var(--wt-bg);
  line-height: 1.5;
}

@media (prefers-reduced-motion: no-preference) {
  body.wt {
    background-attachment: fixed;
  }
}

.wt-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--wt-border);
  background: var(--header-bg);
  color: var(--header-fg);
  backdrop-filter: blur(14px);
}

.wt-header-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: nowrap;
}

.wt-brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-width: 0;
}

.wt-brand a {
  text-decoration: none;
  color: inherit;
}

.wt-logo-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  border: 1px solid transparent;
  background: rgba(127, 127, 127, 0.06);
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.wt-logo-link:hover {
  background: rgba(127, 127, 127, 0.12);
  border-color: rgba(127, 127, 127, 0.25);
}

.wt-logo-link:active {
  transform: translateY(1px);
}

.wt-logo {
  width: 26px;
  height: 26px;
  display: block;
}

.wt-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.wt-toolname {
  font-size: 0.9rem;
  color: var(--wt-muted);
  border-left: 1px solid var(--wt-border);
  padding-left: 10px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 52vw;
}

.wt-spacer {
  flex: 1;
  min-width: 12px;
}

.wt-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: flex-end;
  flex-wrap: nowrap;
}

.wt-extra {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.wt-header #authArea {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.wt-header #authArea span {
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Normalize pill sizing when used inside the global header (mode indicators, etc.) */
.wt-header .pill {
  font-size: 0.88rem;
  padding: 6px 10px;
  border-radius: 999px;
  line-height: 1;
}

.wt-btn,
.wt-btn:visited {
  appearance: none;
  border: 1px solid var(--wt-border);
  background: rgba(255, 255, 255, 0.06);
  color: inherit;
  padding: 8px 10px;
  border-radius: 12px;
  font: inherit;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  transition: transform 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

.wt-btn:hover {
  border-color: rgba(127, 127, 127, 0.35);
  background: rgba(127, 127, 127, 0.12);
}

.wt-btn:active {
  transform: translateY(1px);
}

.wt-btn.wt-btn-primary {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.92), rgba(14, 165, 233, 0.82));
  border-color: rgba(37, 99, 235, 0.65);
  box-shadow: 0 12px 30px rgba(37, 99, 235, 0.25);
  color: #fff;
  font-weight: 650;
}

.wt-btn.wt-btn-primary:hover {
  border-color: rgba(14, 165, 233, 0.75);
}

.wt-btn.wt-btn-ghost {
  background: transparent;
  border-style: dashed;
}

.wt-btn.wt-btn-danger {
  background: rgba(225, 29, 72, 0.1);
  border-color: rgba(225, 29, 72, 0.4);
  color: var(--wt-danger);
  font-weight: 600;
}

.wt-select {
  border: 1px solid var(--wt-border);
  background: rgba(255, 255, 255, 0.06);
  color: inherit;
  border-radius: 12px;
  padding: 8px 10px;
  font: inherit;
}

.wt-page {
  max-width: 1240px;
  margin: 0 auto;
  padding: 18px 14px 40px;
}

/* Basic form normalization inside WT pages */
body.wt input,
body.wt select,
body.wt textarea {
  font: inherit;
  color: inherit;
}

body.wt input:focus,
body.wt select:focus,
body.wt textarea:focus,
body.wt button:focus {
  outline: 2px solid var(--wt-accent);
  outline-offset: 2px;
}

@media (max-width: 560px) {
  .wt-toolname {
    display: none;
  }
  .wt-header-inner {
    flex-wrap: wrap;
  }
  .wt-actions {
    flex-wrap: wrap;
  }
}