:root {
  --admin-login-bg: linear-gradient(180deg, #eff4f7 0%, #d8e3ea 100%);
  --admin-login-card: rgba(255, 255, 255, 0.94);
  --admin-login-ink: #13354e;
  --admin-login-muted: #51677a;
  --admin-login-line: rgba(19, 53, 78, 0.12);
  --admin-login-accent: #0f8a83;
  --admin-login-accent-dark: #0a6b66;
  --admin-login-shadow: 0 24px 54px rgba(19, 53, 78, 0.14);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body.admin-login-page {
  font-family: "Segoe UI", "Malgun Gothic", "Noto Sans KR", sans-serif;
  color: var(--admin-login-ink);
  background: var(--admin-login-bg);
}

.admin-login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px 18px;
}

.admin-login-card {
  width: min(100%, 460px);
  background: var(--admin-login-card);
  border: 1px solid var(--admin-login-line);
  border-radius: 28px;
  box-shadow: var(--admin-login-shadow);
  padding: 28px 24px 24px;
  backdrop-filter: blur(12px);
}

.admin-login-overline {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--admin-login-accent);
}

.admin-login-card h1 {
  margin: 0;
  font-size: clamp(28px, 4vw, 34px);
  line-height: 1.08;
}

.admin-login-lead,
.admin-login-state,
.admin-login-summary {
  margin: 14px 0 0;
  line-height: 1.6;
  color: var(--admin-login-muted);
}

.admin-login-form,
.admin-login-account {
  margin-top: 20px;
}

.admin-login-form label {
  display: block;
  margin-top: 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--admin-login-ink);
}

.admin-login-form input {
  width: 100%;
  margin-top: 8px;
  border: 1px solid var(--admin-login-line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.92);
  padding: 14px 16px;
  font-size: 15px;
  color: var(--admin-login-ink);
}

.admin-login-form input:focus {
  outline: 2px solid rgba(15, 138, 131, 0.18);
  border-color: rgba(15, 138, 131, 0.42);
}

.admin-login-check {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 10px;
  align-items: start;
  margin-top: 14px;
  padding: 12px 14px;
  border: 1px solid rgba(19, 53, 78, 0.1);
  border-radius: 16px;
  background: rgba(239, 244, 247, 0.76);
}

.admin-login-check input {
  width: 18px;
  height: 18px;
  margin: 2px 0 0;
}

.admin-login-check span {
  font-size: 14px;
  font-weight: 700;
  color: var(--admin-login-ink);
}

.admin-login-check small {
  grid-column: 2;
  color: var(--admin-login-muted);
  line-height: 1.45;
}

.admin-login-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.admin-login-pwa {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--admin-login-line);
}

.admin-login-pwa-head h2 {
  margin: 0;
  font-size: 17px;
  color: var(--admin-login-ink);
}

.admin-login-pwa-head p {
  margin: 8px 0 0;
  line-height: 1.55;
  color: var(--admin-login-muted);
}

.admin-login-pwa-note {
  margin: 12px 0 0;
  min-height: 22px;
  line-height: 1.5;
  color: var(--admin-login-muted);
}

.admin-login-btn {
  appearance: none;
  border: 0;
  border-radius: 16px;
  background: var(--admin-login-accent);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  padding: 15px 18px;
  min-height: 48px;
  cursor: pointer;
  transition: transform 140ms ease, background-color 140ms ease, box-shadow 140ms ease;
  box-shadow: 0 12px 24px rgba(15, 138, 131, 0.18);
}

.admin-login-btn:hover {
  background: var(--admin-login-accent-dark);
}

.admin-login-btn:active {
  transform: translateY(1px);
}

.admin-login-btn[disabled] {
  cursor: wait;
  opacity: 0.72;
  transform: none;
  box-shadow: none;
}

.admin-login-btn-ghost {
  background: rgba(19, 53, 78, 0.08);
  color: var(--admin-login-ink);
  box-shadow: none;
}

.admin-login-msg {
  margin: 18px 0 0;
  min-height: 24px;
}

@media (max-width: 640px) {
  .admin-login-shell {
    padding: 18px 14px;
    align-items: start;
  }

  .admin-login-card {
    width: 100%;
    border-radius: 22px;
    padding: 24px 18px 20px;
  }

  .admin-login-btn,
  .admin-login-actions .admin-login-btn {
    width: 100%;
    justify-content: center;
  }
}