@import url("https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap");

:root {
  --primary: #00898a;
  --primary-dark: #006e6f;
  --secondary: #d9efef;
  --ink: #222e2f;
  --muted: #6b7a7b;
  --line: #d3dada;
  --bg: #f9f9f9;
  --card: #ffffff;
  --bad: #c0392b;
  --bad-bg: #fdecea;
  --ok: #00898a;
  --ok-bg: #d9efef;
  --shadow: 0 8px 24px rgba(34, 46, 47, 0.08);
  --radius: 18px;
  --radius-sm: 12px;
  --radius-pill: 999px;
  font-family: "Plus Jakarta Sans", "Noto Sans KR", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(ellipse 80% 50% at 100% -10%, rgba(0, 137, 138, 0.12), transparent 55%),
    radial-gradient(ellipse 60% 40% at -10% 20%, rgba(217, 239, 239, 0.9), transparent 50%),
    var(--bg);
  font-family: "Plus Jakarta Sans", "Noto Sans KR", sans-serif;
  -webkit-font-smoothing: antialiased;
}

.page {
  padding: 1.25rem 1rem 2.5rem;
  max-width: 440px;
  margin: 0 auto;
}
.page.wide { max-width: 1100px; }
.page.demo { max-width: 420px; }

.brand {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: 1.25rem;
}
.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(145deg, var(--primary), #00b3b4);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: .95rem;
  box-shadow: 0 6px 16px rgba(0, 137, 138, 0.35);
}
.brand-text strong {
  display: block;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.brand-text span {
  display: block;
  font-size: .78rem;
  color: var(--muted);
  font-weight: 500;
}

.bar {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.1rem;
  padding: .85rem 1rem;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid rgba(211, 218, 218, 0.7);
}
.bar > strong {
  font-weight: 800;
  letter-spacing: -0.02em;
}
.bar nav {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}
.bar a {
  color: var(--primary);
  text-decoration: none;
  font-size: .82rem;
  font-weight: 600;
  padding: .4rem .7rem;
  border-radius: var(--radius-pill);
  background: var(--secondary);
  transition: background .15s ease, color .15s ease;
}
.bar a:hover {
  background: var(--primary);
  color: #fff;
}

.box {
  background: var(--card);
  border: 1px solid rgba(211, 218, 218, 0.75);
  border-radius: var(--radius);
  padding: 1.15rem 1.2rem 1.25rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
}
.box h1,
.box h2 {
  margin: 0 0 .85rem;
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}
.section-kicker {
  display: inline-block;
  margin-bottom: .45rem;
  padding: .2rem .65rem;
  border-radius: var(--radius-pill);
  background: var(--secondary);
  color: var(--primary);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .02em;
  text-transform: uppercase;
}

label {
  display: block;
  margin: .65rem 0;
  font-size: .82rem;
  font-weight: 600;
  color: var(--muted);
}
input[type=text],
input[type=password],
input[type=number],
input:not([type]) {
  display: block;
  width: 100%;
  margin-top: .35rem;
  padding: .85rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: .95rem;
  font-weight: 500;
  transition: border-color .15s ease, box-shadow .15s ease;
}
input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 137, 138, 0.15);
}
input[readonly] {
  background: var(--bg);
  color: var(--muted);
}

button,
.btn {
  appearance: none;
  margin-top: .65rem;
  margin-right: .4rem;
  padding: .8rem 1.2rem;
  border: none;
  border-radius: var(--radius-pill);
  background: var(--primary);
  color: #fff;
  font: inherit;
  font-size: .92rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform .12s ease, background .15s ease, box-shadow .15s ease;
  box-shadow: 0 4px 14px rgba(0, 137, 138, 0.28);
}
button:hover,
.btn:hover {
  background: var(--primary-dark);
}
button:active,
.btn:active {
  transform: scale(0.98);
}
button.primary-wide {
  width: 100%;
  margin-right: 0;
  padding: .95rem 1.2rem;
  font-size: 1rem;
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin: .65rem 0;
}
.row button,
button.chip {
  margin-top: 0;
  background: var(--secondary);
  color: var(--primary);
  border: none;
  box-shadow: none;
  font-size: .8rem;
  font-weight: 700;
  padding: .55rem .85rem;
}
.row button:hover,
button.chip:hover {
  background: var(--primary);
  color: #fff;
}
.row button.active,
button.chip.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(0, 137, 138, 0.25);
}

.punch-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .55rem;
  margin: .75rem 0 .35rem;
}
.punch-row button {
  margin: 0;
  width: 100%;
  padding: 1rem .75rem;
  font-size: .95rem;
}
.punch-row button.secondary {
  background: var(--secondary);
  color: var(--primary);
  box-shadow: none;
}

.check {
  display: flex;
  align-items: center;
  gap: .55rem;
  margin: .55rem 0;
  padding: .7rem .85rem;
  background: var(--bg);
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  font-size: .88rem;
  font-weight: 600;
  color: var(--ink);
}
.check input {
  width: 1.05rem;
  height: 1.05rem;
  margin: 0;
  accent-color: var(--primary);
}

.hint {
  color: var(--muted);
  font-size: .82rem;
  font-weight: 500;
  line-height: 1.45;
  margin: .35rem 0 .6rem;
}
.err {
  color: var(--bad);
  font-weight: 700;
  background: var(--bad-bg);
  padding: .65rem .85rem;
  border-radius: var(--radius-sm);
}

.table-wrap {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid rgba(211, 218, 218, 0.75);
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: transparent;
  font-size: .86rem;
}
th, td {
  border-bottom: 1px solid var(--line);
  padding: .7rem .75rem;
  text-align: left;
  vertical-align: top;
}
th {
  background: var(--secondary);
  color: var(--primary-dark);
  font-weight: 700;
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .03em;
  position: sticky;
  top: 0;
}
tr:last-child td { border-bottom: none; }
tr.rej { background: var(--bad-bg); }
tr.rej td:last-child { font-weight: 700; color: var(--bad); }
tbody tr:not(.payload) {
  cursor: pointer;
  transition: background .12s ease;
}
tbody tr:not(.payload):hover { background: rgba(217, 239, 239, 0.45); }
tr.payload { display: none; }
tr.payload.open { display: table-row; }
tr.payload pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-all;
  font-size: .75rem;
  color: var(--muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: .25rem;
  padding: .2rem .55rem;
  border-radius: var(--radius-pill);
  font-size: .75rem;
  font-weight: 700;
}
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.bad { background: var(--bad-bg); color: var(--bad); }

.result {
  margin-top: .85rem;
  padding: 1rem 1.05rem;
  white-space: pre-wrap;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  min-height: 3rem;
  font-size: .95rem;
  font-weight: 600;
  background: var(--bg);
  line-height: 1.45;
}
.result.ok {
  background: var(--ok-bg);
  border-color: rgba(0, 137, 138, 0.35);
  color: var(--ok);
}
.result.bad {
  background: var(--bad-bg);
  border-color: rgba(192, 57, 43, 0.3);
  color: var(--bad);
  font-weight: 700;
}

.qr-wrap {
  margin: 1rem auto .5rem;
  width: fit-content;
  padding: 1rem;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
#qr {
  display: grid;
  place-items: center;
  min-width: 220px;
  min-height: 220px;
  margin: 0 auto;
  background: #fff;
  border-radius: 8px;
}
#qr img, #qr canvas {
  display: block;
  margin: 0 auto;
}

.countdown {
  text-align: center;
  font-weight: 700;
  color: var(--primary);
  font-size: .95rem;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem 1rem;
}
.login-shell .box {
  width: 100%;
  max-width: 400px;
  margin: 0;
}
.login-shell h1 {
  font-size: 1.45rem;
}

.guide-page h1 {
  margin: 0 0 .65rem;
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}
.guide-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 0;
}
@media (max-width: 860px) {
  .guide-grid { grid-template-columns: 1fr; }
}
.steps {
  margin: 0;
  padding-left: 1.15rem;
  line-height: 1.55;
}
.steps li { margin: .55rem 0; }
.steps li span,
.steps li strong + br + span {
  color: var(--muted);
  font-size: .88rem;
  font-weight: 500;
}
.steps.numbered { list-style: decimal; }
.plain-list {
  margin: 0;
  padding-left: 1.1rem;
  line-height: 1.55;
}
.plain-list li { margin: .4rem 0; }
.plain-list code {
  font-size: .82rem;
  background: var(--secondary);
  color: var(--primary-dark);
  padding: .1rem .4rem;
  border-radius: 6px;
}
.callout {
  margin-top: 1rem;
  padding: .9rem 1rem;
  background: var(--secondary);
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--primary);
  font-size: .92rem;
  line-height: 1.5;
}
.howto {
  background: linear-gradient(160deg, #e7f6f6 0%, #ffffff 55%);
  border-color: rgba(0, 137, 138, 0.25);
}
.howto ol {
  margin: .4rem 0 0;
  padding-left: 1.2rem;
  line-height: 1.55;
}
.howto li { margin: .35rem 0; font-size: .9rem; font-weight: 500; }
.howto .howto-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin-top: .85rem;
}
.howto .howto-actions a {
  text-decoration: none;
  font-size: .8rem;
  font-weight: 700;
  padding: .45rem .8rem;
  border-radius: var(--radius-pill);
  background: var(--primary);
  color: #fff;
}
.howto .howto-actions a.ghost {
  background: var(--secondary);
  color: var(--primary);
}
a.btn.secondary {
  background: var(--secondary);
  color: var(--primary);
  box-shadow: none;
}
a.btn {
  display: inline-block;
}
.hero-help .punch-row .btn { margin-top: 0; }