:root {
  --on-accent: #fff; --ok: #1b7f3b;
  --bg: #f6f7f9; --fg: #1d2330; --muted: #667085; --card: #fff; --line: #e3e6ec;
  --accent: #1f5eff; --danger: #c62828;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #14171f; --fg: #e8eaf0; --muted: #9aa3b5; --card: #1c212c; --line: #2c3342; --accent: #6b94ff; --danger: #ff7b72; --on-accent: #10131a; --ok: #5fd08a; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.6 system-ui, -apple-system, "Noto Sans KR", sans-serif; }
a { color: var(--accent); }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 16px; }
.top { background: var(--card); border-bottom: 1px solid var(--line); }
.bar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; padding-top: 10px; padding-bottom: 10px; }
.brand { font-weight: 700; text-decoration: none; color: var(--fg); }
nav { display: flex; flex-wrap: wrap; gap: 4px 16px; flex: 1; }
nav a, .right a { text-decoration: none; }
.right { display: flex; align-items: center; gap: 14px; }
main.wrap { padding-top: 24px; padding-bottom: 48px; }
h1 { font-size: 1.7rem; margin: 0 0 12px; }
h2 { font-size: 1.2rem; margin: 0 0 8px; }
h3 { font-size: 1rem; margin: 18px 0 6px; }
.hero { padding: 24px 0 8px; }
.lead { font-size: 1.15rem; margin: 0 0 4px; }
.muted { color: var(--muted); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 18px 20px; margin: 0 0 16px; }
.narrow { max-width: 460px; }
.pre { white-space: pre-wrap; overflow-wrap: anywhere; }
.flash { background: color-mix(in srgb, var(--accent) 12%, var(--card)); border: 1px solid var(--accent); border-radius: 8px; padding: 10px 14px; margin-bottom: 16px; }
.btn { display: inline-block; background: var(--accent); color: var(--on-accent); border: 0; border-radius: 8px; padding: 9px 18px; font: inherit; text-decoration: none; cursor: pointer; }
.btn.secondary { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
.btn.block { display: block; text-align: center; }
button.link { background: none; border: 0; padding: 0; font: inherit; color: var(--accent); cursor: pointer; }
button.link.danger { color: var(--danger); }
form.inline { display: inline; margin-left: 6px; }
label { display: block; margin: 0 0 12px; font-weight: 600; }
label.check { font-weight: 400; }
input, textarea { display: block; width: 100%; margin-top: 4px; padding: 8px 10px; font: inherit; color: var(--fg); background: var(--bg); border: 1px solid var(--line); border-radius: 8px; }
input[type=checkbox] { display: inline; width: auto; }
input[type=file] { border: 0; padding-left: 0; background: none; }
fieldset { border: 0; padding: 0; margin: 0; }
table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: 6px 10px 6px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.scroll { overflow-x: auto; }
.row { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; padding: 6px 0; border-bottom: 1px solid var(--line); }
.note { padding: 6px 0; border-bottom: 1px solid var(--line); }

/* header: brand + right on one row, nav wraps below on phones */
.bar { row-gap: 4px; }
.brand { order: 1; min-height: 44px; display: inline-flex; align-items: center; }
.right { order: 2; margin-left: auto; gap: 4px 12px; flex-wrap: wrap; justify-content: flex-end; }
nav { order: 3; flex-basis: 100%; gap: 0 4px; margin: 0 -8px; }
nav:empty { display: none; }
nav { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; font-size: .9rem; }
nav::-webkit-scrollbar { display: none; }
.top nav a { padding: 0 4px; white-space: nowrap; flex: none; }
nav a, .right a, .right button.link { display: inline-flex; align-items: center; min-height: 44px; padding: 0 10px; }
.right form.inline { margin: 0; }
@media (min-width: 640px) {
  nav { order: 2; flex: 1; flex-basis: auto; margin: 0; font-size: 1rem; }
  .top nav a { padding: 0 8px; }
  .right { order: 3; margin-left: 0; }
}

/* wizard */
.steps { display: flex; justify-content: center; align-items: center; gap: 8px; list-style: none; margin: 8px 0 4px; padding: 0; }
.steps li { width: 10px; height: 10px; border-radius: 5px; background: var(--line); }
.steps li.done { background: var(--accent); }
.steps li.current { background: var(--accent); width: 24px; }
.step-label { text-align: center; margin: 0 0 16px; font-size: .9rem; }
.card.wizard { margin-left: auto; margin-right: auto; padding: 22px 20px; }
.wizard h1 { font-size: 1.5rem; line-height: 1.3; }
.wizard .btn, .account-form .btn { display: block; width: 100%; min-height: 48px; padding: 12px 18px; text-align: center; margin-top: 12px; }
.wizard .btn:first-of-type { margin-top: 20px; }
.wizard input, .account-form input { min-height: 48px; font-size: 1rem; }
.hint { margin: 0 0 12px; }
input[aria-invalid=true], input[aria-invalid=true]:focus { border-color: var(--danger); outline-color: var(--danger); }
.field-error { color: var(--danger); margin: 8px 0 0; font-weight: 600; }
.check-mark { width: 48px; height: 48px; border-radius: 50%; background: var(--accent); margin: 8px auto 16px; position: relative; }
.check-mark::after { content: ""; position: absolute; left: 17px; top: 9px; width: 12px; height: 22px; border: solid var(--on-accent); border-width: 0 4px 4px 0; transform: rotate(45deg); }
.center { text-align: center; }
.linkrow { text-align: center; margin: 4px 0 0; }
.linkrow button.link { min-height: 44px; padding: 0 12px; }
.sub { display: block; font-weight: 400; font-size: .85rem; overflow-wrap: break-word; }
@keyframes slidein { from { transform: translateY(8px); opacity: 0; } to { transform: none; opacity: 1; } }
.js .wizard { animation: slidein 150ms ease-out; }
@media (prefers-reduced-motion: reduce) { .js .wizard { animation: none; } }

/* Korean (also user content on EN pages): break between words, never mid-word; long strings still wrap */
body { overflow-wrap: anywhere; }
body { word-break: keep-all; }
table { overflow-wrap: normal; }

/* v2: landing, dashboard, preferences, admin list */
.landing-h1 { margin: 8px 0 16px; }
.btn.big, .account-form .btn { display: block; width: 100%; min-height: 48px; padding: 12px 18px; text-align: center; }
.account-form .btn { margin-top: 12px; }
.card .btn.big { margin-top: 12px; }
.card .stack { margin: 0 0 12px; }
.card .stack .btn.big { margin-top: 0; }
.card p { margin: 0 0 8px; }
.clamp { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; overflow-wrap: anywhere; }
a.tap { display: inline-flex; align-items: center; min-height: 44px; padding: 0 6px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
nav a[aria-current=page], .right a[aria-current=page] { box-shadow: inset 0 -3px 0 var(--accent); }
fieldset legend { padding: 0; }
fieldset legend h2 { margin-bottom: 4px; }
label.radio { display: flex; align-items: center; gap: 12px; min-height: 48px; margin: 0 0 8px; padding: 0 12px; font-weight: 400; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; cursor: pointer; }
label.radio input { width: 22px; height: 22px; margin: 0; min-height: 0; flex: none; accent-color: var(--accent); }
label.radio:has(input:checked) { border-color: var(--accent); }
.narrow .hint { margin-top: 8px; }
.account-form .narrow { margin-left: 0; }
.account-form input[type=radio] { min-height: 0; }

.user { display: block; padding: 12px 0; }
.u-name { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; }
.u-email, .u-login, .u-att { overflow-wrap: anywhere; font-size: .9rem; }
.u-act:empty { display: none; }
.actions { display: flex; gap: 8px; margin-top: 8px; }
.actions .btn { flex: 1; min-height: 44px; padding: 8px 12px; margin: 0; text-align: center; }
.btn.secondary.danger { color: var(--danger); border-color: var(--danger); }
.chip { display: inline-block; font-size: .8rem; line-height: 1.5; padding: 0 10px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); }
.chip.approved { color: var(--ok); border-color: var(--ok); }
.chip.rejected { color: var(--danger); border-color: var(--danger); }
@media (min-width: 720px) {
  .user { display: grid; grid-template-columns: 2fr 1.2fr 1fr 1.2fr; gap: 4px 16px; align-items: start; }
  .u-name { grid-column: 1; grid-row: 1; }
  .u-email { grid-column: 1; grid-row: 2; }
  .u-login { grid-column: 2; grid-row: 1; }
  .u-att { grid-column: 3; grid-row: 1; }
  .u-act { grid-column: 4; grid-row: 1 / 3; }
  .actions { margin-top: 0; }
}

/* QA round 1: header on one row, nav aligned, admin buttons, tap areas */
.bar { column-gap: 8px; }
.brand { font-size: 1rem; white-space: nowrap; }
.right { flex-wrap: nowrap; gap: 0; }
.right a, .right button.link { padding: 0 8px; font-size: .95rem; white-space: nowrap; }
nav { margin: 0 -8px; padding: 0 8px; }
nav a, .top nav a { padding: 0 8px; }
.actions .btn { white-space: nowrap; }
.card a.tap { margin-left: 4px; }
.linkrow a.tap { padding: 0 12px; }
@media (min-width: 640px) {
  nav { margin: 0; padding: 0; }
  nav a, .top nav a { padding: 0 10px; }
  .bar { column-gap: 12px; }
  .right a, .right button.link { font-size: 1rem; }
}
@media (min-width: 720px) {
  .user { grid-template-columns: 2fr 1.2fr 1fr minmax(210px, 1.2fr); }
}
@media (max-width: 639px) {
  .brand { font-size: .95rem; }
  .right a, .right button.link { padding: 0 6px; font-size: .9rem; }
  .right { margin-right: -6px; }
}
@media (max-width: 639px) {
  nav { margin: 0 -10px; padding: 0 10px; font-size: .92rem; }
  nav a, .top nav a { padding: 0 8px; }
  nav a:first-child { margin-left: -8px; padding-left: 8px; }
}
@media (max-width: 639px) {
  nav { font-size: .9rem; }
  nav a, .top nav a { padding: 0 5px; }
  nav a:first-child { margin-left: -5px; padding-left: 5px; }
}

nav a[aria-current=page], .right a[aria-current=page] { font-weight: inherit; color: var(--fg); }
@media (max-width: 639px) {
  nav { font-size: .86rem; }
  nav a, .top nav a { padding: 0 4px; }
  nav a:first-child { margin-left: -4px; padding-left: 4px; }
}