:root {
  --bg-primary: #111814;
  --bg-secondary: #1a241f;
  --bg-card: #223029;
  --bg-hover: #2b3d34;
  --border-color: #354a3f;
  --text-main: #f0f5f2;
  --text-muted: #9ab3a4;
  --accent: #52c488;
  --accent-hover: #62d699;
  --accent-dim: rgba(82, 196, 136, 0.15);
  --danger: #ff6b6b;
  --danger-hover: #ff8585;
  --warning: #f5a623;
  --info: #4da3ff;
  --radius: 12px;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Pretendard", "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.6;
}

header {
  padding: 20px 32px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  font-size: 26px;
}

.logo-title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.logo-sub {
  font-size: 13px;
  color: var(--text-muted);
}

.admin-header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}

.container {
  width: 100%;
  max-width: 540px;
}

.admin-container {
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  background: var(--bg-secondary);
  padding: 6px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
}

.tab-btn {
  flex: 1;
  padding: 10px;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.tab-btn:hover {
  color: var(--text-main);
}

.tab-btn.active {
  background: var(--bg-card);
  color: var(--accent);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* Forms */
.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-main);
}

input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-main);
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s;
}

input:focus {
  border-color: var(--accent);
}

.help-text {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Checkbox & Terms */
.terms-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 14px;
  margin-bottom: 14px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 14px;
  cursor: pointer;
  user-select: none;
}

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

input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  cursor: pointer;
}

.view-terms-btn {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 13px;
  text-decoration: underline;
  cursor: pointer;
  padding: 4px 6px;
}

.btn-primary {
  width: 100%;
  padding: 14px;
  background: var(--accent);
  color: #0c1410;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s;
  margin-top: 10px;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  padding: 8px 16px;
  background: var(--bg-hover);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.btn-secondary:hover {
  background: var(--border-color);
}

/* Alert / Banners */
.banner {
  padding: 14px 18px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 14px;
  line-height: 1.5;
}

.banner-admin-init {
  background: rgba(245, 166, 35, 0.15);
  border: 1px solid var(--warning);
  color: #ffcf75;
}

.banner-info {
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  color: #8bf0bc;
}

.banner-danger {
  background: rgba(255, 107, 107, 0.15);
  border: 1px solid var(--danger);
  color: #ffa1a1;
}

/* Status Badges */
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.badge-pending {
  background: rgba(245, 166, 35, 0.2);
  color: var(--warning);
  border: 1px solid var(--warning);
}

.badge-approved {
  background: rgba(82, 196, 136, 0.2);
  color: var(--accent);
  border: 1px solid var(--accent);
}

.badge-rejected {
  background: rgba(255, 107, 107, 0.2);
  color: var(--danger);
  border: 1px solid var(--danger);
}

.badge-admin {
  background: rgba(77, 163, 255, 0.2);
  color: var(--info);
  border: 1px solid var(--info);
}

/* Status Result Card */
.status-result {
  margin-top: 20px;
  padding: 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  display: none;
}

.status-result h3 {
  font-size: 16px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Admin Dashboard */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 30px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
}

.section-title {
  font-size: 18px;
  font-weight: 700;
  margin: 28px 0 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-card);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  text-align: left;
}

th, td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
}

th {
  background: var(--bg-secondary);
  color: var(--text-muted);
  font-weight: 600;
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.action-btns {
  display: flex;
  gap: 8px;
}

.btn-approve {
  padding: 6px 12px;
  background: var(--accent);
  color: #0c1410;
  border: none;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  font-size: 12px;
}

.btn-approve:hover {
  background: var(--accent-hover);
}

.btn-reject {
  padding: 6px 12px;
  background: rgba(255, 107, 107, 0.15);
  color: var(--danger);
  border: 1px solid var(--danger);
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  font-size: 12px;
}

.btn-reject:hover {
  background: rgba(255, 107, 107, 0.3);
}

.btn-del {
  padding: 6px 12px;
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
}

.btn-del:hover {
  border-color: var(--danger);
}

.empty-row {
  text-align: center;
  color: var(--text-muted);
  padding: 32px !important;
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 1000;
}

.modal-overlay.open {
  display: flex;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  max-width: 600px;
  width: 100%;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.6);
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 18px;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 22px;
  cursor: pointer;
}

.modal-close:hover {
  color: var(--text-main);
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
  white-space: pre-line;
}

.modal-body h4 {
  color: var(--text-main);
  margin: 14px 0 6px;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
}

footer {
  text-align: center;
  padding: 24px;
  color: var(--text-muted);
  font-size: 13px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-secondary);
}