*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body { font-family: var(--font); font-size: 14px; color: var(--text); background: var(--bg); line-height: 1.45; }
h1 { font-size: 28px; font-weight: 700; margin: 0 0 4px; }
h2 { font-size: 18px; font-weight: 700; margin: 0 0 12px; }
p { margin: 0 0 12px; }
a { color: var(--brand-blue); }
.sub { font-size: 15px; color: var(--muted); margin: 0 0 24px; }
.muted { color: var(--muted); }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
[hidden] { display: none !important; }

:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }
.sidebar :focus-visible, .dark :focus-visible { outline-color: var(--focus-ring-on-dark); }

/* buttons */
.btn { font: inherit; font-weight: 600; min-height: 36px; padding: 6px 16px; border-radius: var(--radius-s); border: 1px solid var(--brand-green); background: var(--brand-green); color: var(--white); cursor: pointer; transition: background var(--motion); }
.btn:hover { background: var(--brand-green-hover); }
.btn.secondary { background: var(--surface); color: var(--brand-blue); border-color: var(--brand-blue); }
.btn.secondary:hover { background: var(--brand-blue-light); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }

/* cards */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-m); box-shadow: var(--shadow-card); padding: 20px; margin-bottom: 20px; max-width: 880px; }
.kv { display: grid; grid-template-columns: 200px 1fr; gap: 8px 16px; margin: 0; }
.kv dt { color: var(--muted); font-weight: 600; font-size: 13px; }
.kv dd { margin: 0; word-break: break-word; }
.kv .mono { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 13px; }
.chip { display: inline-block; font-size: 12px; font-weight: 600; padding: 2px 10px; border-radius: var(--radius-pill); background: var(--neutral-bg); color: var(--neutral); }
.chip.ok { background: var(--ok-bg); color: var(--ok); }
.chip.warn { background: var(--warn-bg); color: var(--warn); }
.chip.danger { background: var(--danger-bg); color: var(--danger); }
.chip.info { background: var(--info-bg); color: var(--info); }
.notice { border-radius: var(--radius-s); padding: 10px 14px; margin: 0 0 16px; background: var(--warn-bg); color: var(--warn); font-weight: 600; max-width: 880px; }
.notice.error { background: var(--danger-bg); color: var(--danger); }
.notice.ok { background: var(--ok-bg); color: var(--ok); }
label { display: block; font-weight: 600; margin-bottom: 4px; }
select, input { font: inherit; min-height: 36px; padding: 4px 10px; border: 1px solid var(--border); border-radius: var(--radius-s); background: var(--surface); color: var(--text); min-width: 260px; }

/* sign-in screen */
.center { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 16px; }
.signin { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-m); box-shadow: var(--shadow-float); padding: 32px; width: 100%; max-width: 440px; }
.wordmark { font-size: 24px; font-weight: 700; color: var(--brand-green); margin-bottom: 16px; }
.wordmark span { color: var(--brand-blue); }

/* shell */
.shell { display: flex; min-height: 100vh; }
.sidebar { width: 232px; flex: none; background: var(--sidebar-bg); color: var(--sidebar-text); display: flex; flex-direction: column; padding: 20px 12px 16px; position: sticky; top: 0; height: 100vh; }
.sidebar .logo { font-size: 22px; font-weight: 700; color: var(--white); padding: 0 12px 20px; }
.nav { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.nav a { display: flex; align-items: center; gap: 12px; padding: 9px 12px; border-radius: var(--radius-s); color: var(--sidebar-text); text-decoration: none; font-size: 15px; font-weight: 500; min-height: 40px; transition: background var(--motion); }
.nav a:hover { background: var(--nav-active-bg); }
.nav a[aria-current="page"] { background: var(--nav-active-bg); color: var(--nav-active-text); }
.nav a[aria-current="page"] svg { color: var(--nav-active-icon); }
.nav svg { width: 20px; height: 20px; flex: none; }
.nav-sep { margin: 12px 12px 4px; font-size: 12px; font-weight: 600; color: var(--sidebar-muted); text-transform: uppercase; letter-spacing: .04em; }
.userblock { margin-top: auto; position: relative; }
.userbtn { width: 100%; display: flex; align-items: center; gap: 10px; background: transparent; border: 0; color: var(--sidebar-text); padding: 8px 10px; border-radius: var(--radius-s); cursor: pointer; text-align: left; font: inherit; }
.userbtn:hover { background: var(--nav-active-bg); }
.avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--brand-blue-light); color: var(--brand-blue); font-weight: 700; display: flex; align-items: center; justify-content: center; flex: none; }
.uname { font-weight: 600; font-size: 14px; color: var(--white); }
.urole { font-size: 12px; color: var(--sidebar-muted); }
.ver { font-size: 12px; color: var(--sidebar-muted); padding: 8px 10px 0; }
.menu { position: absolute; bottom: 56px; left: 8px; right: 8px; background: var(--surface); color: var(--text); border-radius: var(--radius-s); box-shadow: var(--shadow-float); padding: 4px; }
.menu button { width: 100%; text-align: left; font: inherit; background: transparent; border: 0; padding: 8px 12px; border-radius: var(--radius-s); cursor: pointer; color: var(--text); min-height: 36px; }
.menu button:hover { background: var(--brand-green-light); }
.menu :focus-visible { outline-color: var(--focus-ring); }
main { flex: 1; padding: 32px; min-width: 0; }

/* overlays */
.overlay { position: fixed; inset: 0; background: var(--overlay); display: flex; align-items: center; justify-content: center; padding: 16px; z-index: 50; }
.overlay.lock { background: var(--bg); z-index: 60; }
.dialog { background: var(--surface); border-radius: var(--radius-m); box-shadow: var(--shadow-float); padding: 28px; max-width: 460px; width: 100%; }
.dialog h2 { margin-bottom: 8px; }

.narrow-notice { display: none; background: var(--warn-bg); color: var(--warn); font-weight: 600; padding: 8px 16px; }

/* under 1280: icon sidebar fallback; under 1024: notice, tables scroll inside their card */
@media (max-width: 1279px) {
  .sidebar { width: 72px; padding: 20px 8px 16px; }
  .sidebar .logo { font-size: 15px; padding: 0 0 16px; text-align: center; }
  .nav a { justify-content: center; padding: 9px 0; }
  .nav .label, .uname, .urole, .ver, .nav-sep { display: none; }
  .userbtn { justify-content: center; padding: 8px 0; }
  main { padding: 24px 20px; }
}
@media (max-width: 1023px) {
  .narrow-notice { display: block; }
  .card { overflow-x: auto; }
  .kv { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }
.pre { white-space: pre-wrap; }
.card .btn-row { margin-top: 16px; }