*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  font-weight: var(--w-regular);
  font-size: var(--fs-body);
  line-height: 1.5;
  color: var(--navy);
  background: var(--offwhite);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, p { margin: 0; }
button, input, select { font: inherit; color: inherit; }

/* ---------- Header (Navy band, white logo in right corner) ---------- */
.app-header {
  display: flex;
  flex-direction: row;          /* physical: logo stays in the right corner */
  align-items: center;
  gap: var(--cell);
  height: calc(var(--cell) * 3);
  padding: 0 var(--cell);
  background: var(--navy);
  color: var(--offwhite);
}
.app-header .titles { flex: 1; min-width: 0; display: flex; align-items: center; gap: var(--half); }
.app-title { font-weight: var(--w-black); font-size: var(--fs-subhead); line-height: 1.2; }
.app-sub { font-weight: var(--w-light); font-size: var(--fs-foot); opacity: .85; }
.header-actions { display: flex; gap: 10px; align-items: center; }

/* Logo: own space, clear space = half monogram height on all sides */
.logo-area { display: flex; align-items: center; padding-left: var(--cell); }
.logo-area img { height: 54px; width: auto; display: block; }

/* ---------- Badges ---------- */
.badge {
  display: inline-block;
  padding: 0 10px;
  border-radius: 999px;
  font-size: var(--fs-foot);
  font-weight: var(--w-semibold);
  line-height: 22px;
  white-space: nowrap;
}
.badge-demo { background: var(--yellow); color: var(--navy); }
.badge-illustrative { border: 1px solid var(--lightgray); color: var(--offwhite); }

/* ---------- Buttons ---------- */
.btn {
  border: 1px solid var(--lightgray);
  background: transparent;
  border-radius: var(--radius);
  padding: 2px 12px;
  cursor: pointer;
  font-weight: var(--w-semibold);
  font-size: var(--fs-foot);
  line-height: 24px;
}
.app-header .btn { color: var(--offwhite); }
.btn:hover { border-color: var(--teal); }
.btn:focus-visible, input:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }
.btn-primary { background: var(--blue); border-color: var(--blue); color: var(--offwhite); }

/* ---------- Layout on the 30px grid ---------- */
.app-main {
  display: grid;
  grid-template-columns: calc(var(--cell) * 11) 1fr;
  gap: var(--cell);
  padding: var(--cell);
  max-width: calc(var(--cell) * 48);
  margin: 0 auto;
}
.panel {
  border: var(--line);
  border-radius: var(--radius);
  background: var(--offwhite);
  padding: var(--cell) var(--cell);
}
.panel h2 {
  font-weight: var(--w-bold);
  font-size: var(--fs-intro);
  margin-block-end: var(--half);
}
.content { display: grid; gap: var(--cell); grid-template-columns: repeat(12, 1fr); align-content: start; }
.span-12 { grid-column: span 12; }
.span-8 { grid-column: span 8; }
.span-6 { grid-column: span 6; }
.span-4 { grid-column: span 4; }
.span-3 { grid-column: span 3; }

/* Line device: 4 parallel lines with rounded ends */
.line-device { display: block; width: calc(var(--cell) * 4); height: 18px; margin-block-start: var(--half); }
.line-device line { stroke: var(--lightgray); stroke-width: 2; stroke-linecap: round; }

.placeholder { color: var(--darkgray); font-weight: var(--w-light); font-size: var(--fs-foot); }
.app-footer {
  padding: 0 var(--cell) var(--cell);
  max-width: calc(var(--cell) * 48);
  margin: 0 auto;
  color: var(--darkgray);
  font-size: var(--fs-foot);
  font-weight: var(--w-light);
}

@media (max-width: 1000px) {
  .app-main { grid-template-columns: 1fr; }
  .span-8, .span-6, .span-4, .span-3 { grid-column: span 12; }
  .app-sub { display: none; }
}