:root {
  --fd-admin-bg: #08111b;
  --fd-admin-surface: #101a26;
  --fd-admin-surface-strong: #172230;
  --fd-admin-panel: #1c2735;
  --fd-admin-border: rgba(255, 255, 255, 0.08);
  --fd-admin-border-strong: rgba(25, 215, 195, 0.24);
  --fd-admin-text: #f3f7fb;
  --fd-admin-text-muted: #aeb9c8;
  --fd-admin-text-soft: #8896a7;
  --fd-admin-accent: #19d7c3;
  --fd-admin-accent-strong: #4fb7ff;
  --fd-admin-danger: #ff6c7a;
  --fd-admin-shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
  --fd-admin-radius-lg: 28px;
  --fd-admin-radius-md: 18px;
  --fd-admin-radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(25, 215, 195, 0.08), transparent 24%),
    linear-gradient(180deg, #09131d 0%, #08111b 100%);
  color: var(--fd-admin-text);
  font-family: "SUIT", "Pretendard", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

.fd-admin-body {
  min-height: 100vh;
}

.fd-admin-layout {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
}

.fd-admin-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 28px 22px;
  border-right: 1px solid var(--fd-admin-border);
  background: rgba(10, 17, 27, 0.92);
  backdrop-filter: blur(18px);
}

.fd-admin-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}

.fd-admin-brand img {
  width: 52px;
  height: 52px;
}

.fd-admin-brand__label {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.fd-admin-brand__eyebrow {
  color: var(--fd-admin-accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.fd-admin-brand__name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.fd-admin-sidebar__section {
  margin-top: 24px;
}

.fd-admin-sidebar__label {
  margin-bottom: 12px;
  color: var(--fd-admin-text-soft);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.fd-admin-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.fd-admin-nav a {
  padding: 14px 16px;
  border: 1px solid transparent;
  border-radius: var(--fd-admin-radius-md);
  color: var(--fd-admin-text-muted);
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.fd-admin-nav a:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.04);
  color: var(--fd-admin-text);
}

.fd-admin-nav a.is-active {
  border-color: var(--fd-admin-border-strong);
  background: linear-gradient(135deg, rgba(25, 215, 195, 0.12), rgba(79, 183, 255, 0.10));
  color: var(--fd-admin-text);
}

.fd-admin-nav__title {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
  font-weight: 700;
}

.fd-admin-nav__desc {
  display: block;
  color: var(--fd-admin-text-soft);
  font-size: 13px;
  line-height: 1.5;
}

.fd-admin-sidebar__note {
  margin-top: 28px;
  padding: 18px;
  border: 1px solid var(--fd-admin-border);
  border-radius: var(--fd-admin-radius-md);
  background: rgba(255, 255, 255, 0.03);
}

.fd-admin-sidebar__note strong {
  display: block;
  margin-bottom: 10px;
  font-size: 15px;
}

.fd-admin-sidebar__note p {
  margin: 0;
  color: var(--fd-admin-text-muted);
  font-size: 14px;
  line-height: 1.7;
}

.fd-admin-main {
  min-width: 0;
}

.fd-admin-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 20px 28px;
  border-bottom: 1px solid var(--fd-admin-border);
  background: rgba(8, 17, 27, 0.92);
  backdrop-filter: blur(18px);
}

.fd-admin-topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.fd-admin-topbar__meta strong {
  display: block;
  font-size: 18px;
  font-weight: 800;
}

.fd-admin-topbar__meta span {
  color: var(--fd-admin-text-muted);
  font-size: 14px;
}

.fd-admin-topbar__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.fd-admin-btn,
.fd-admin-topbar__actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--fd-admin-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--fd-admin-text);
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.fd-admin-btn:hover,
.fd-admin-topbar__actions a:hover {
  transform: translateY(-1px);
  border-color: var(--fd-admin-border-strong);
}

.fd-admin-btn--primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--fd-admin-accent), var(--fd-admin-accent-strong));
  color: #08111b;
  font-weight: 800;
}

.fd-admin-content {
  padding: 28px;
}

.fd-admin-page {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.fd-admin-hero {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px;
  border: 1px solid var(--fd-admin-border);
  border-radius: var(--fd-admin-radius-lg);
  background: linear-gradient(180deg, rgba(18, 28, 40, 0.96), rgba(10, 16, 24, 0.96));
  box-shadow: var(--fd-admin-shadow);
}

.fd-admin-hero__eyebrow {
  display: inline-flex;
  margin-bottom: 14px;
  color: var(--fd-admin-accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.fd-admin-hero h1 {
  margin: 0 0 12px;
  font-size: 40px;
  font-weight: 800;
  line-height: 1.1;
}

.fd-admin-hero p {
  max-width: 760px;
  margin: 0;
  color: var(--fd-admin-text-muted);
  line-height: 1.8;
}

.fd-admin-hero__meta {
  min-width: 280px;
  padding: 22px;
  border: 1px solid var(--fd-admin-border);
  border-radius: var(--fd-admin-radius-md);
  background: rgba(255, 255, 255, 0.03);
}

.fd-admin-hero__meta ul {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.fd-admin-hero__meta li span {
  display: block;
  margin-bottom: 6px;
  color: var(--fd-admin-text-soft);
  font-size: 13px;
}

.fd-admin-hero__meta li strong {
  font-size: 16px;
}

.fd-admin-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.fd-admin-stat {
  padding: 22px;
  border: 1px solid var(--fd-admin-border);
  border-radius: var(--fd-admin-radius-md);
  background: rgba(255, 255, 255, 0.03);
}

.fd-admin-stat__label {
  display: block;
  margin-bottom: 10px;
  color: var(--fd-admin-text-soft);
  font-size: 13px;
}

.fd-admin-stat__value {
  font-size: 30px;
  font-weight: 800;
}

.fd-admin-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 18px;
}

.fd-admin-card {
  padding: 24px;
  border: 1px solid var(--fd-admin-border);
  border-radius: var(--fd-admin-radius-lg);
  background: linear-gradient(180deg, rgba(17, 26, 35, 0.96), rgba(10, 16, 24, 0.96));
  box-shadow: var(--fd-admin-shadow);
}

.fd-admin-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.fd-admin-card__header h2,
.fd-admin-card__header h3 {
  margin: 0 0 8px;
  font-size: 24px;
}

.fd-admin-card__header p {
  margin: 0;
  color: var(--fd-admin-text-muted);
  line-height: 1.7;
}

.fd-admin-badge {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(25, 215, 195, 0.10);
  color: var(--fd-admin-accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.fd-admin-table-wrap {
  overflow: auto;
  border: 1px solid var(--fd-admin-border);
  border-radius: var(--fd-admin-radius-md);
}

.fd-admin-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

.fd-admin-table th,
.fd-admin-table td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  text-align: left;
  vertical-align: top;
}

.fd-admin-table th {
  color: var(--fd-admin-text-soft);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.fd-admin-table td {
  color: var(--fd-admin-text);
  font-size: 14px;
}

.fd-admin-table tbody tr:nth-child(odd) {
  background: rgba(255, 255, 255, 0.02);
}

.fd-admin-table code,
.fd-admin-mono {
  word-break: break-all;
  font-family: "SFMono-Regular", "Consolas", monospace;
  color: var(--fd-admin-text);
}

.fd-admin-empty {
  margin: 0;
  color: var(--fd-admin-text-muted);
  line-height: 1.7;
}

.fd-admin-pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--fd-admin-text);
  font-size: 12px;
  font-weight: 700;
}

.fd-admin-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.fd-admin-field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.fd-admin-form label {
  display: block;
  margin-bottom: 8px;
  color: var(--fd-admin-text-soft);
  font-size: 13px;
  font-weight: 700;
}

.fd-admin-input,
.fd-admin-form input,
.fd-admin-form select,
.fd-admin-form textarea {
  width: 100%;
  min-height: 46px;
  padding: 0 14px;
  border: 1px solid var(--fd-admin-border);
  border-radius: var(--fd-admin-radius-sm);
  background: rgba(255, 255, 255, 0.04);
  color: var(--fd-admin-text);
}

.fd-admin-form textarea {
  min-height: 120px;
  padding: 14px;
  resize: vertical;
}

.fd-admin-form input[type="checkbox"] {
  width: 18px;
  min-height: auto;
  padding: 0;
}

.fd-admin-table .fd-admin-input {
  min-width: 140px;
}

.fd-admin-checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
}

.fd-admin-alert {
  padding: 14px 16px;
  border: 1px solid rgba(25, 215, 195, 0.2);
  border-radius: var(--fd-admin-radius-md);
  background: rgba(25, 215, 195, 0.08);
  color: var(--fd-admin-text);
}

.fd-admin-note-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.fd-admin-note-list li {
  color: var(--fd-admin-text-muted);
  line-height: 1.7;
}

.fd-admin-note-list strong {
  color: var(--fd-admin-text);
}

.fd-admin-login {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px;
}

.fd-admin-login__panel {
  width: min(1080px, 100%);
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(380px, 0.9fr);
  overflow: hidden;
  border: 1px solid var(--fd-admin-border);
  border-radius: 32px;
  background: linear-gradient(180deg, rgba(18, 28, 40, 0.98), rgba(10, 16, 24, 0.98));
  box-shadow: var(--fd-admin-shadow);
}

.fd-admin-login__brand {
  padding: 44px;
  background:
    radial-gradient(circle at top left, rgba(25, 215, 195, 0.16), transparent 32%),
    linear-gradient(180deg, rgba(12, 20, 29, 0.96), rgba(8, 14, 22, 0.96));
}

.fd-admin-login__brand img {
  width: 72px;
  height: 72px;
  margin-bottom: 26px;
}

.fd-admin-login__brand span {
  display: inline-flex;
  margin-bottom: 14px;
  color: var(--fd-admin-accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.fd-admin-login__brand h1 {
  margin: 0 0 14px;
  font-size: 48px;
  line-height: 1.08;
}

.fd-admin-login__brand p {
  max-width: 520px;
  margin: 0;
  color: var(--fd-admin-text-muted);
  line-height: 1.8;
}

.fd-admin-login__brand ul {
  display: grid;
  gap: 12px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.fd-admin-login__brand li {
  padding: 14px 16px;
  border-radius: var(--fd-admin-radius-md);
  background: rgba(255, 255, 255, 0.04);
  color: var(--fd-admin-text-muted);
}

.fd-admin-login__form {
  padding: 44px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.fd-admin-login__form h2 {
  margin: 0 0 10px;
  font-size: 30px;
}

.fd-admin-login__form p {
  margin: 0 0 22px;
  color: var(--fd-admin-text-muted);
  line-height: 1.7;
}

.fd-admin-validation {
  margin-bottom: 16px;
  color: var(--fd-admin-danger);
  font-size: 14px;
}

.fd-admin-login__field + .fd-admin-login__field {
  margin-top: 16px;
}

.fd-admin-login__hint {
  margin-top: 18px;
  color: var(--fd-admin-text-soft);
  font-size: 13px;
}

@media screen and (max-width: 1180px) {
  .fd-admin-layout {
    grid-template-columns: 1fr;
  }

  .fd-admin-sidebar {
    position: static;
    height: auto;
  }

  .fd-admin-hero,
  .fd-admin-grid {
    grid-template-columns: 1fr;
  }

  .fd-admin-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media screen and (max-width: 860px) {
  .fd-admin-login {
    padding: 18px;
  }

  .fd-admin-login__panel {
    grid-template-columns: 1fr;
  }

  .fd-admin-login__brand,
  .fd-admin-login__form,
  .fd-admin-content,
  .fd-admin-topbar,
  .fd-admin-sidebar {
    padding: 24px;
  }

  .fd-admin-stats,
  .fd-admin-field-grid {
    grid-template-columns: 1fr;
  }

  .fd-admin-topbar__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .fd-admin-topbar__actions {
    width: 100%;
  }
}