/* ── Reset ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
body, h1, h2, h3, h4, h5, h6, p, ul, ol, li, dl, dd,
input, button, select, textarea { margin: 0; padding: 0; }
ul, ol { list-style: none; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* ── CSS Variables ───────────────────────────────────────── */
:root {
  --primary:        #185FA5;
  --primary-light:  #E6F1FB;
  --primary-dark:   #0C447C;

  --success-text:   #1D9E75;
  --success-bg:     #EAF3DE;
  --warning-text:   #BA7517;
  --warning-bg:     #FAEEDA;
  --error-text:     #E24B4A;
  --error-bg:       #FCEBEB;

  --page-bg:        #F5F6F8;
  --card-bg:        #FFFFFF;
  --border:         #E5E7EB;
  --text:           #111827;
  --text-sub:       #6B7280;
  --text-hint:      #9CA3AF;

  --toner-k: #374151;
  --toner-c: #3B82F6;
  --toner-m: #EC4899;
  --toner-y: #F59E0B;

  --font:           "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  --sidebar-w:      200px;
  --topbar-h:       52px;
  --radius:         10px;
  --radius-sm:      6px;
}

/* ── Base ────────────────────────────────────────────────── */
html { font-size: 14px; }
body {
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
  background: var(--page-bg);
}

/* ── Layout ──────────────────────────────────────────────── */
.ps-page {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

.ps-sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  background: var(--card-bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  flex-shrink: 0;
}

.ps-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

.ps-topbar {
  height: var(--topbar-h);
  min-height: var(--topbar-h);
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  gap: 12px;
  flex-shrink: 0;
  z-index: 10;
}

.ps-topbar-left {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.ps-topbar-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}

.ps-topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.ps-topbar-user {
  font-size: 13px;
  color: var(--text-sub);
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

.ps-topbar-time {
  font-size: 12px;
  color: var(--text-hint);
  white-space: nowrap;
}

.ps-content {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
}

/* ── Sidebar Logo ─────────────────────────────────────────── */
.ps-sidebar-logo {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: baseline;
  gap: 6px;
  flex-shrink: 0;
}

.ps-logo-text {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.3px;
}

.ps-logo-sub {
  font-size: 10px;
  font-weight: 700;
  background: var(--primary-light);
  color: var(--primary);
  padding: 1px 6px;
  border-radius: 4px;
}

/* ── Sidebar Nav ─────────────────────────────────────────── */
.ps-sidebar-nav {
  flex: 1;
  padding: 10px 0;
  overflow-y: auto;
}

.sb-section-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-hint);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 10px 16px 4px;
}

.sb-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  font-size: 13px;
  color: var(--text-sub);
  border-left: 3px solid transparent;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
}

.sb-item:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.sb-item.active {
  color: var(--primary);
  background: #EFF6FF;
  border-left-color: var(--primary);
  font-weight: 500;
}

.sb-item i {
  font-size: 16px;
  flex-shrink: 0;
}

.sb-divider {
  height: 1px;
  background: var(--border);
  margin: 8px 16px;
}

/* ── Card ────────────────────────────────────────────────── */
.ps-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.ps-card-header {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 40px;
}

.ps-card-header-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.ps-card-body {
  padding: 16px;
}

/* ── Tab Bar ──────────────────────────────────────────────── */
.ps-tab-bar {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: var(--card-bg);
  padding: 0 4px;
  overflow-x: auto;
}

.ps-tab {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--text-sub);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.15s;
  user-select: none;
  flex-shrink: 0;
}

.ps-tab:hover { color: var(--primary); }

.ps-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 500;
}

/* ── Button ──────────────────────────────────────────────── */
.ps-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  font-size: 13px;
  font-family: var(--font);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card-bg);
  color: var(--text);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  white-space: nowrap;
  line-height: 1.4;
}

.ps-btn:hover { background: #F3F4F6; }
.ps-btn:disabled { opacity: 0.55; cursor: not-allowed; }

.ps-btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.ps-btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
}

.ps-btn-sm {
  padding: 3px 10px;
  font-size: 12px;
}

.ps-btn-danger {
  color: var(--error-text);
  border-color: #FECACA;
  background: #FEF2F2;
}

.ps-btn-danger:hover { background: #FEE2E2; }

.ps-btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-sub);
  padding: 3px 8px;
}

.ps-btn-ghost:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary-light);
}

/* ── Badge ───────────────────────────────────────────────── */
.ps-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

.ps-badge-blue   { background: var(--primary-light); color: var(--primary); }
.ps-badge-green  { background: var(--success-bg);    color: var(--success-text); }
.ps-badge-red    { background: var(--error-bg);      color: var(--error-text); }
.ps-badge-amber  { background: var(--warning-bg);    color: var(--warning-text); }
.ps-badge-gray   { background: #F3F4F6;              color: var(--text-sub); }
.ps-badge-yellow { background: #FEF3C7;              color: #92400E; }
.ps-badge-orange { background: #FAEEDA;              color: #92400E; }
.ps-badge-dark   { background: #374151;              color: #F9FAFB; }

.ps-badge-large {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
}
.ps-badge-large.ps-badge-green  { background: #EAF3DE; color: #166534; }
.ps-badge-large.ps-badge-yellow { background: #FEF3C7; color: #92400E; }
.ps-badge-large.ps-badge-red    { background: #FCEBEB; color: #991B1B; }
.ps-badge-large.ps-badge-orange { background: #FAEEDA; color: #92400E; }
.ps-badge-large.ps-badge-dark   { background: #374151; color: #F9FAFB; }

/* ── Table ───────────────────────────────────────────────── */
.ps-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.ps-table th {
  background: #F9FAFB;
  font-size: 12px;
  color: var(--text-sub);
  font-weight: 600;
  padding: 8px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.ps-table td {
  padding: 8px 12px;
  border-bottom: 1px solid #F3F4F6;
  vertical-align: middle;
}

.ps-table tbody tr:hover td { background: #F9FAFB; }
.ps-table tbody tr:last-child td { border-bottom: none; }
.ps-table tbody tr.row-hidden { display: none; }

/* ── Field Grid (2-col info grid) ────────────────────────── */
.ps-field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.ps-field-item {
  padding: 8px 14px;
  border-bottom: 1px solid #F3F4F6;
}

.ps-field-item:nth-child(odd) {
  border-right: 1px solid #F3F4F6;
}

.ps-field-label {
  font-size: 11px;
  color: var(--text-hint);
  font-weight: 600;
  margin-bottom: 2px;
}

.ps-field-value {
  font-size: 13px;
  color: var(--text);
  word-break: break-all;
}

/* ── Toner Bar ───────────────────────────────────────────── */
.ps-toner-bar { margin-bottom: 12px; }

.ps-toner-bar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 5px;
}

.ps-toner-label {
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.ps-toner-dot {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
}

.ps-toner-pct {
  font-size: 12px;
  font-weight: 700;
}

.ps-toner-track {
  height: 7px;
  background: #F3F4F6;
  border-radius: 4px;
  overflow: hidden;
}

.ps-toner-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.4s;
}

.ps-toner-fill.high { background: var(--success-text); }
.ps-toner-fill.mid  { background: var(--primary); }
.ps-toner-fill.low  { background: var(--error-text); }

/* ── Status Dot ──────────────────────────────────────────── */
.ps-status-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.ps-status-dot.online  { background: var(--success-text); }
.ps-status-dot.offline { background: var(--text-hint); }
.ps-status-dot.error   { background: var(--error-text); }
.ps-status-dot.warning { background: var(--warning-text); }

/* ── Summary Cards ───────────────────────────────────────── */
.ps-summary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.ps-summary-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.ps-summary-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
}

.ps-summary-val {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}

.ps-summary-val.is-error   { color: var(--error-text); }
.ps-summary-val.is-success { color: var(--success-text); }
.ps-summary-val.is-warning { color: var(--warning-text); }

.ps-summary-label {
  font-size: 12px;
  color: var(--text-sub);
  margin-top: 4px;
}

/* ── Counter Section ─────────────────────────────────────── */
.ps-counter-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  text-align: center;
}

.ps-counter-item {
  padding: 12px 8px;
  border-right: 1px solid #F3F4F6;
}

.ps-counter-item:last-child { border-right: none; }

.ps-counter-val {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}

.ps-counter-label {
  font-size: 11px;
  color: var(--text-hint);
  margin-top: 2px;
}

.ps-counter-delta {
  font-size: 11px;
  font-weight: 600;
  margin-top: 2px;
}

/* ── Form Controls ───────────────────────────────────────── */
.ps-form-group { margin-bottom: 14px; }

.ps-form-label {
  display: block;
  font-size: 12px;
  color: var(--text-sub);
  font-weight: 600;
  margin-bottom: 5px;
}

.ps-form-input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.15s;
  background: var(--card-bg);
  color: var(--text);
}

.ps-form-input:focus { border-color: var(--primary); }

.ps-form-input-sm {
  padding: 4px 8px;
  font-size: 12px;
  width: auto;
}

.ps-form-select {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-family: var(--font);
  outline: none;
  background: var(--card-bg);
  color: var(--text);
}

.ps-form-textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-family: var(--font);
  outline: none;
  resize: vertical;
  min-height: 60px;
  transition: border-color 0.15s;
}

.ps-form-textarea:focus { border-color: var(--primary); }

/* ── 2-col form grid ─────────────────────────────────────── */
.ps-form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* ── Pagination ──────────────────────────────────────────── */
.ps-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.ps-page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 32px;
  padding: 0 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 13px;
  color: var(--text);
  background: var(--card-bg);
  text-decoration: none;
  transition: background 0.15s;
}

.ps-page-btn:hover { background: #F3F4F6; }

.ps-page-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* ── Flash Messages ──────────────────────────────────────── */
.ps-flash-wrap { padding: 8px 16px 0; }

.flash-success,
.flash-error {
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.flash-success {
  background: var(--success-bg);
  color: var(--success-text);
  border: 1px solid #BBF7D0;
}

.flash-error {
  background: var(--error-bg);
  color: var(--error-text);
  border: 1px solid #FECACA;
}

/* ── Inline Toggle Panel ─────────────────────────────────── */
.ps-panel {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 16px;
}

.ps-panel-header {
  padding: 10px 16px;
  background: #F9FAFB;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  font-weight: 600;
}

.ps-panel-body { padding: 16px; }

/* ── Toast ───────────────────────────────────────────────── */
#toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #1F2937;
  color: #fff;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 13px;
  display: none;
  z-index: 999;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* ── Misc ────────────────────────────────────────────────── */
.ps-monospace { font-family: "SFMono-Regular", Consolas, monospace; font-size: 12px; }
.ps-text-sub  { color: var(--text-sub); font-size: 12px; }
.ps-text-hint { color: var(--text-hint); font-size: 12px; }
.ps-no-data   { text-align: center; padding: 40px 20px; color: var(--text-hint); font-size: 14px; }

/* ── Toolbar ─────────────────────────────────────────────── */
.ps-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.ps-toolbar-left  { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.ps-toolbar-right { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }

/* ── Search Input ─────────────────────────────────────────── */
.ps-search {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-family: var(--font);
  outline: none;
  width: 240px;
  transition: border-color 0.15s;
  background: var(--card-bg);
}

.ps-search:focus { border-color: var(--primary); }

/* ── 2-col layout ────────────────────────────────────────── */
.ps-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ── Login page ──────────────────────────────────────────── */
.ps-login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--page-bg);
}

.ps-login-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 40px 36px;
  width: 380px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
}

.ps-login-logo {
  text-align: center;
  margin-bottom: 28px;
}

.ps-login-logo-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.5px;
}

.ps-login-logo-sub {
  font-size: 12px;
  color: var(--text-hint);
  margin-top: 4px;
}

.ps-login-error {
  background: var(--error-bg);
  color: var(--error-text);
  border: 1px solid #FECACA;
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 16px;
}

.ps-login-input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.15s;
  background: var(--card-bg);
  color: var(--text);
}

.ps-login-input:focus { border-color: var(--primary); }

.ps-login-btn {
  width: 100%;
  padding: 12px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 700;
  font-family: var(--font);
  cursor: pointer;
  margin-top: 6px;
  transition: background 0.2s;
}

.ps-login-btn:hover { background: var(--primary-dark); }

.ps-login-link {
  text-align: center;
  margin-top: 20px;
  font-size: 13px;
  color: var(--text-hint);
}

.ps-login-link a {
  color: var(--primary);
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 768px) {
  .ps-sidebar { display: none; }
  .ps-summary-grid { grid-template-columns: repeat(2, 1fr); }
  .ps-summary-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .ps-grid-2 { grid-template-columns: 1fr; }
  .ps-form-grid-2 { grid-template-columns: 1fr; }
  .ps-field-grid { grid-template-columns: 1fr; }
}