/* Shared shell for standalone tool pages — matches the homepage redesign. */
:root {
  color-scheme: light;
  --ink: #0c1524;
  --ink-soft: #1a2740;
  --muted: #5c6b7e;
  --bg: #eef1f5;
  --panel: #ffffff;
  --panel-2: #f7f9fb;
  --border: #d5dde8;
  --accent: #b86a1a;
  --accent-cool: #2a6f97;
  --accent-dim: rgba(42, 111, 151, 0.10);
  --sans: "IBM Plex Sans", system-ui, sans-serif;
  --display: "Sora", "IBM Plex Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(12, 21, 36, 0.04), 0 8px 24px rgba(12, 21, 36, 0.06);
  --max: 1080px;

  /* Aliases used by older per-page rules */
  --text: var(--ink);
  --text-muted: var(--muted);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent-cool);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 2px;
}

img { max-width: 100%; }

/* —— Site header —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  backdrop-filter: blur(14px);
  background: rgba(238, 241, 245, 0.94);
  border-bottom: 1px solid var(--border);
}

.site-header__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.wordmark {
  font-family: var(--display);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: -0.02em;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.wordmark:hover { text-decoration: none; }

.wordmark__mark {
  width: 20px;
  height: 20px;
  border-radius: 5px;
  background:
    radial-gradient(circle at 35% 35%, #7eb6d9 0%, transparent 55%),
    radial-gradient(circle at 70% 65%, #c47a22 0%, transparent 50%),
    #122033;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
  flex-shrink: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav a {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--muted);
  padding: 7px 11px;
  border-radius: 8px;
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--ink);
  background: rgba(12, 21, 36, 0.04);
  text-decoration: none;
}

@media (max-width: 640px) {
  .site-nav { display: none; }
}

/* —— Page —— */
.page {
  max-width: var(--max);
  margin: 0 auto;
  padding: 36px 24px 64px;
}

.page--narrow { max-width: 920px; }

.page-header { margin-bottom: 18px; }

.eyebrow,
.crumb {
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 14px;
}

.eyebrow a,
.crumb a {
  color: var(--accent-cool);
  text-decoration: none;
}

.eyebrow a:hover,
.crumb a:hover {
  text-decoration: underline;
  text-underline-offset: 2px;
}

h1 {
  font-family: var(--display);
  font-size: clamp(1.7rem, 3vw, 2.1rem);
  font-weight: 650;
  letter-spacing: -0.03em;
  margin: 0 0 8px;
  text-wrap: balance;
  color: var(--ink);
}

.h1-sub {
  font-size: 15px;
  font-weight: 600;
  color: var(--muted);
  margin: 0 0 6px;
  text-wrap: balance;
}

.lede,
.subtitle {
  font-size: 15.5px;
  color: var(--muted);
  line-height: 1.55;
  margin: 0 0 4px;
  max-width: 42rem;
}

.subtitle { font-size: 13.5px; }

.status,
.mjo-status {
  font-size: 14.5px;
  font-weight: 600;
  margin: 16px 0 0;
  padding: 8px 14px;
  background: var(--accent-dim);
  border-left: 3px solid var(--accent-cool);
  border-radius: 4px;
  display: inline-block;
  color: var(--ink);
}

.mjo-status strong { color: var(--accent-cool); }

/* —— Controls —— */
.controls {
  display: flex;
  gap: 20px;
  align-items: center;
  flex-wrap: wrap;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin: 24px 0 16px;
  box-shadow: var(--shadow);
}

.control {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  min-width: 0;
  max-width: 100%;
}

.control-label,
.controls label,
label {
  font-weight: 600;
  font-size: 12.5px;
  color: var(--muted);
  white-space: nowrap;
}

.seg {
  display: inline-flex;
  flex-wrap: wrap;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  background: var(--panel-2);
}

.seg button {
  appearance: none;
  border: 0;
  border-right: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  font-weight: 500;
  padding: 7px 12px;
  cursor: pointer;
}

.seg button:last-child { border-right: 0; }

.seg button[aria-pressed="true"],
.seg button.is-active {
  background: var(--ink);
  color: #fff;
}

.seg button:hover {
  color: var(--ink);
  background: rgba(12, 21, 36, 0.04);
}

.seg button[aria-pressed="true"]:hover,
.seg button.is-active:hover {
  background: var(--ink-soft);
  color: #fff;
}

.seg button:focus-visible {
  outline: 2px solid var(--accent-cool);
  outline-offset: -2px;
}

.valid,
#leadLabel {
  font-family: var(--mono);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  color: var(--accent-cool);
  font-weight: 600;
  min-width: 62px;
}

select {
  padding: 6px 10px;
  font-size: 14px;
  font-family: var(--sans);
  background: var(--panel-2);
  color: var(--ink);
  border: 1px solid var(--border);
  border-radius: 6px;
  max-width: 100%;
  min-width: 0;
}

.slider-wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  flex: 1;
  min-width: min(280px, 100%);
}

input[type="range"] {
  flex: 1 1 80px;
  min-width: 80px;
  accent-color: var(--accent-cool);
}

.slider-wrap > button,
#playBtn {
  padding: 6px 14px;
  font-size: 13.5px;
  font-family: var(--sans);
  font-weight: 600;
  background: var(--panel-2);
  color: var(--ink);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
}

.slider-wrap > button:hover,
#playBtn:hover {
  background: var(--accent-dim);
  border-color: var(--accent-cool);
}

button:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent-cool);
  outline-offset: 2px;
}

/* —— Content frames —— */
.frame {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  line-height: 0;
  box-shadow: var(--shadow);
  margin: 0 0 10px;
}

.frame img,
.frame > img {
  width: 100%;
  display: block;
}

.frame.is-empty img { display: none; }

.empty {
  display: none;
  padding: 72px 28px;
  text-align: center;
  line-height: 1.55;
  color: var(--muted);
  font-size: 15px;
}

.frame.is-empty .empty { display: block; }

.empty strong {
  color: var(--ink);
  font-weight: 650;
}

.hint {
  color: var(--muted);
  font-size: 12.5px;
  margin-top: 12px;
}

.section-title {
  font-family: var(--display);
  font-size: 18px;
  font-weight: 600;
  margin: 28px 0 6px;
  letter-spacing: -0.02em;
}

.section-lede { margin-bottom: 12px; }

/* —— Key / legend panels —— */
.key {
  margin-top: 26px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px 20px;
  box-shadow: var(--shadow);
}

.key h2 {
  font-family: var(--display);
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 10px;
  color: var(--ink);
  text-wrap: balance;
}

.key p {
  margin: 0 0 10px;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--muted);
}

.key p:last-child { margin-bottom: 0; }

/* —— Footer —— */
.site-footer {
  border-top: 1px solid var(--border);
  background: #e7ebf1;
  padding: 28px 24px 40px;
}

.site-footer__inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 24px;
  font-size: 13.5px;
  color: var(--muted);
}

.site-footer strong {
  color: var(--ink-soft);
  font-family: var(--display);
  font-weight: 600;
}