* { box-sizing: border-box; }

[hidden] { display: none !important; }

:root { --sticky-scroll-offset: 10.75rem; }

html { scroll-padding-top: var(--sticky-scroll-offset); }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 18px;
  line-height: 1.55;
  word-break: keep-all;
  overflow-wrap: break-word;
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

a {
  color: inherit;
  text-decoration-color: color-mix(in srgb, currentColor 35%, transparent);
  text-decoration-thickness: .08em;
  text-underline-offset: .18em;
}
a:visited {
  color: inherit;
}
a:hover,
a:focus-visible {
  color: var(--primary-strong);
  text-decoration-color: currentColor;
}

.app-nav {
  position: sticky;
  top: 0;
  z-index: 3;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: .85rem;
  align-items: center;
  padding: .7rem 1rem;
  background: var(--nav-bg);
  color: var(--nav-text);
  box-shadow: 0 1px 8px #0003;
}
.app-nav a,
.app-nav span,
.app-nav button { color: var(--nav-text); }
.app-nav a { text-decoration: none; }
.nav-brand {
  display: inline-flex;
  align-items: center;
  min-height: var(--touch-target);
  padding: .55rem .75rem;
  border: 1px solid var(--nav-line);
  border-radius: .85rem;
  font-weight: 900;
  letter-spacing: 0;
  background: #ffffff14;
}
.app-nav-groups,
.nav-account,
.nav-group {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  align-items: center;
}
.nav-group {
  padding: .3rem;
  border: 1px solid var(--nav-line);
  border-radius: .9rem;
  background: #ffffff0c;
}
.nav-group-label {
  padding: 0 .45rem;
  color: var(--nav-muted);
  font-size: .86rem;
  font-weight: 850;
}
.app-nav a:not(.nav-brand),
.nav-role {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--touch-target);
  padding: .55rem .75rem;
  border-radius: .75rem;
  font-weight: 800;
}
.app-nav a:not(.nav-brand):hover,
.app-nav a:not(.nav-brand):focus-visible { background: #ffffff22; }
.app-nav a.nav-active,
.app-nav a[aria-current="page"] {
  background: var(--primary);
  border: 1px solid var(--primary);
}
.nav-account { justify-content: flex-end; }
.nav-role { color: var(--nav-muted); }

main {
  max-width: 1440px;
  margin: 0 auto;
  padding: 1.25rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-soft);
  scroll-margin-top: var(--sticky-scroll-offset);
}
.card h1,
.card h2,
.card h3 { line-height: 1.25; }
.card h1:first-child,
.card h2:first-child,
.card h3:first-child { margin-top: 0; }
.login-card { max-width: 420px; margin: 10vh auto; }

.grid { display: grid; gap: 1rem; }
.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.stack { display: grid; gap: .9rem; }
/* Data-entry grids MUST top-align fields; helper text can change item height. */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .9rem;
  align-items: start;
}
.wide { grid-column: 1 / -1; }

.form-grid > button,
.form-grid > .toolbar {
  align-self: end;
}
label { display: grid; gap: .4rem; font-weight: 750; }

input, select, button, textarea {
  font: inherit;
  border: 1px solid var(--line);
  border-radius: .75rem;
  padding: .7rem .8rem;
  background: var(--input-bg);
  color: var(--input-text);
  min-height: var(--touch-target);
}
input, select, textarea { width: 100%; min-width: 0; }
input[type="checkbox"],
input[type="radio"] {
  width: var(--choice-mark-size);
  height: var(--choice-mark-size);
  min-width: var(--choice-mark-size);
  min-height: var(--choice-mark-size);
  margin: 0;
  padding: 0;
  accent-color: var(--primary);
  vertical-align: middle;
}
input[type="checkbox"] {
  border-radius: .25rem;
}
input[type="radio"] {
  border-radius: 999px;
}
textarea { resize: vertical; }
button,
.button-link,
.toolbar a {
  align-items: center;
  justify-content: center;
  text-align: center;
  line-height: 1.25;
  word-break: keep-all;
  overflow-wrap: normal;
}
button {
  display: inline-flex;
  cursor: pointer;
  font-weight: 850;
}
button.primary,
.button-link.primary {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}
button.primary:hover,
.button-link.primary:hover,
.button-link.primary:focus-visible {
  background: var(--primary-strong);
  color: white;
}
button.secondary,
.button-link.secondary { background: var(--primary-soft); border-color: var(--primary); color: var(--primary-strong); }
button.danger,
.button-link.danger { background: var(--danger); border-color: var(--danger); color: white; }
button.quiet,
.button-link.quiet { background: transparent; color: var(--muted); }
.large { width: 100%; font-size: 1.15rem; padding: 1rem; margin-top: .6rem; }

:focus { outline: none; }
:focus-visible {
  outline: 4px solid var(--focus);
  outline-offset: 3px;
  box-shadow: 0 0 0 7px color-mix(in srgb, var(--focus) 20%, transparent);
}

.page-hero {
  display: grid;
  gap: .45rem;
  padding: 1.1rem;
  border: 2px solid var(--primary);
  border-radius: 1rem;
  background: color-mix(in srgb, var(--primary-soft) 75%, var(--card));
}
.action-banner {
  display: grid;
  gap: .45rem;
}
.page-hero h1,
.action-banner h1,
.action-banner h2,
.action-banner p { margin: 0; }
.action-banner strong { font-size: 1.25rem; }
.banner-actions,
.task-actions { display: flex; flex-wrap: wrap; gap: .6rem; align-items: center; margin-top: .45rem; }

.task-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: .8rem;
}
.task-card {
  display: grid;
  gap: .3rem;
  min-height: 6rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: .95rem;
  background: var(--row-stripe);
  color: var(--text);
  text-decoration: none;
}
.task-card strong { font-size: 1.08rem; }
.task-card small { color: var(--muted); font-size: .96rem; }
.task-card.primary { border-color: var(--primary); background: var(--primary-soft); }
.task-card:hover,
.task-card:focus-visible { border-color: var(--primary); box-shadow: 0 0 0 4px color-mix(in srgb, var(--primary) 18%, transparent); }

.form-help { color: var(--muted); font-size: .98rem; font-weight: 650; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td {
  padding: .78rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
th { color: var(--text); font-size: 1rem; font-weight: 850; }
.num { text-align: right; white-space: nowrap; }
.action-cell {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  align-items: center;
  white-space: normal;
}
.action-cell form { margin: 0; }

.alert { padding: .9rem 1rem; border-radius: .8rem; font-weight: 800; }
.error { background: var(--alert-error-bg); color: var(--danger); }
.ok { background: var(--alert-ok-bg); color: var(--ok); }
.hint, small { color: var(--muted); font-size: .98rem; line-height: 1.45; }

@media (max-width: 960px) {
  .app-nav { grid-template-columns: 1fr; align-items: stretch; }
  .app-nav-groups, .nav-account { justify-content: flex-start; }
}

@media (max-width: 760px) {
  :root { --sticky-scroll-offset: 1rem; }
  body { font-size: 17px; }
  .two, .form-grid { grid-template-columns: 1fr; }
  main { padding: .7rem; }
  .app-nav { position: static; padding: .65rem; }
  .nav-group { width: 100%; }
  .nav-group a { flex: 1 1 8rem; }
  .nav-group-label { width: 100%; }
  .card { border-radius: .85rem; padding: .9rem; }
  table:not(.keep-table) { display: block; overflow-x: auto; white-space: nowrap; }
}