:root {
  /* White and blue palette shared by every White Oak bTech site. */
  --navy: #0f2a4a;
  --blue: #1f5fbf;
  --blue-dark: #174a96;
  --pale: #e8f0fb;
  --line: #d6e2f0;
  --white: #ffffff;
  --muted: #5b6b7f;
  --header-link: #c9d8ee;
  --bad: #9a2f1f;
  --bad-bg: #fbeceb;
  --font: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; background: var(--white); color: var(--navy); font: 1rem/1.5 var(--font); }
h1, h2, h3 { line-height: 1.15; margin: 0 0 0.5rem; letter-spacing: -0.01em; }
h1 { font-size: clamp(1.5rem, 3vw, 2rem); }
h2 { font-size: 1.1rem; margin-top: 1.75rem; }
a { color: var(--blue); text-underline-offset: 3px; }
p { margin: 0 0 1em; }
ul { margin: 0; padding: 0; list-style: none; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; }
.wrap { width: min(100% - 2rem, 72rem); margin-inline: auto; }
main.wrap { padding-block: 1.5rem 4rem; }

/* header */
.bar { background: var(--navy); color: var(--white); }
.bar-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.5rem 1.5rem; padding-block: 0.75rem; }
.mark { color: var(--white); font-weight: 800; letter-spacing: -0.02em; text-decoration: none; }
.mark span { color: var(--pale); font-weight: 500; }
.bar nav { display: flex; flex-wrap: wrap; align-items: center; gap: 0.25rem 1.25rem; }
.bar nav a, .bar .link { color: var(--header-link); text-decoration: none; padding: 0.25rem 0; border-bottom: 2px solid transparent; }
.bar nav a:hover, .bar .link:hover { color: var(--white); }
.bar nav a[aria-current="page"] { color: var(--white); border-bottom-color: var(--pale); }
.link { background: none; border: 0; font: inherit; cursor: pointer; }
.bar form { margin: 0; }

/* layout */
.page-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.75rem 1rem; margin-bottom: 1rem; }
.page-head h1 { margin: 0; }
.sub { color: var(--muted); margin: 0.25rem 0 0; }
.narrow { max-width: 24rem; margin: 3rem auto; }
.empty, .hint, .muted { color: var(--muted); }
.hint { font-size: 0.9rem; margin: 0.35rem 0 0; }
.muted { font-size: 0.9rem; }
.pre { white-space: pre-wrap; }

.notice { background: var(--pale); border-left: 4px solid var(--blue); padding: 0.6rem 0.9rem; border-radius: 4px; }
.notice.bad { background: var(--bad-bg); border-color: var(--bad); }

/* buttons */
.btn { display: inline-block; background: var(--blue); color: var(--white); border: 1px solid var(--blue); border-radius: 6px; padding: 0.55rem 1rem; font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; }
.btn:hover { background: var(--blue-dark); border-color: var(--blue-dark); }
.btn.quiet { background: transparent; color: var(--blue); }
.btn.quiet:hover { background: var(--pale); }
.btn.small { padding: 0.3rem 0.7rem; font-size: 0.9rem; }

/* panels */
.panel { background: var(--pale); border: 1px solid var(--line); border-radius: 8px; padding: 0.25rem 1rem 1rem; margin-top: 1.75rem; }
.panel h2 { margin-top: 0.9rem; }
.info { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 0.25rem 1rem; }
.info dt { color: var(--muted); }
.info dd { margin: 0; overflow-wrap: anywhere; }


/* forms */
.stack { display: grid; gap: 1rem; }
.form { max-width: 34rem; }
.field label { display: block; font-weight: 600; margin-bottom: 0.25rem; }
.field label small { font-weight: 400; color: var(--muted); }
input, select, textarea { width: 100%; font: inherit; color: var(--navy); background: var(--white); border: 1px solid var(--muted); border-radius: 6px; padding: 0.55rem 0.7rem; }
textarea { resize: vertical; }
.has-error input, .has-error select { border-color: var(--bad); }
.error { color: var(--bad); font-size: 0.9rem; margin: 0.3rem 0 0; }
.row { display: flex; align-items: center; gap: 1rem; }

@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }

/* portal */
.account { max-width: 40rem; }
.info dd .hint { display: block; }
.foot { color: var(--muted); font-size: 0.9rem; padding-bottom: 2rem; }