/* ═══════════════════════════════════════════
   NPP 재고관리 — Design System
   ═══════════════════════════════════════════ */

:root {
  --bg: #0f1117;
  --bg-2: #161b27;
  --bg-3: #1e2534;
  --bg-4: #252d3d;
  --border: #2a3347;
  --border-2: #354060;
  --text-1: #e8edf5;
  --text-2: #9aa5b8;
  --text-3: #5c6880;
  --accent: #4f7ef8;
  --accent-hover: #3b6af0;
  --accent-light: rgba(79,126,248,0.12);
  --green: #22c55e;
  --green-light: rgba(34,197,94,0.12);
  --amber: #f59e0b;
  --amber-light: rgba(245,158,11,0.12);
  --red: #ef4444;
  --red-light: rgba(239,68,68,0.12);
  --purple: #a855f7;
  --purple-light: rgba(168,85,247,0.12);
  --sidebar-w: 240px;
  --topbar-h: 64px;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 4px 20px rgba(0,0,0,0.35);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
}

/* ── Light Mode ── */
body.light {
  --bg: #f0f2f7;
  --bg-2: #ffffff;
  --bg-3: #f5f7fc;
  --bg-4: #e8ecf5;
  --border: #d5dae8;
  --border-2: #b8c0d8;
  --text-1: #1a2035;
  --text-2: #4a5568;
  --text-3: #8896aa;
  --accent: #3b6af0;
  --accent-hover: #2a58e0;
  --accent-light: rgba(59,106,240,0.1);
  --green: #16a34a;
  --green-light: rgba(22,163,74,0.1);
  --amber: #d97706;
  --amber-light: rgba(217,119,6,0.1);
  --red: #dc2626;
  --red-light: rgba(220,38,38,0.1);
  --purple: #7c3aed;
  --purple-light: rgba(124,58,237,0.1);
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
}
body.light ::-webkit-scrollbar-thumb { background: var(--border); }
body.light ::-webkit-scrollbar-thumb:hover { background: var(--border-2); }

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

html, body {
  height: 100%;
  font-family: 'Pretendard', 'Apple SD Gothic Neo', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  background: var(--bg);
  color: var(--text-1);
  line-height: 1.5;
}

a { cursor: pointer; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--bg-4); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-2); }

/* ═══════════════════════════════════════════
   LOGIN
   ═══════════════════════════════════════════ */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(79,126,248,0.18) 0%, transparent 70%),
    var(--bg);
}

.login-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow);
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 36px;
}

.login-logo {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--accent), #7c3aed);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #fff;
}

.login-brand h1 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-1);
}

.login-brand p {
  font-size: 0.78rem;
  color: var(--text-3);
  margin-top: 2px;
}

/* ═══════════════════════════════════════════
   APP LAYOUT
   ═══════════════════════════════════════════ */
.app-wrap {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ── Sidebar ── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  z-index: 200;
  transition: transform 0.25s ease;
}

.sidebar-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 16px;
  border-bottom: 1px solid var(--border);
}

.sidebar-logo {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent), #7c3aed);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}

.sidebar-brand { flex: 1; min-width: 0; }
.brand-name {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.brand-sub {
  display: block;
  font-size: 0.62rem;
  color: var(--text-3);
  letter-spacing: 0.08em;
  margin-top: 1px;
}

.sidebar-close { display: none; background: none; border: none; color: var(--text-3); padding: 4px; }

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-section-label {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 10px 8px 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  color: var(--text-2);
  font-size: 0.875rem;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
  cursor: pointer;
  position: relative;
}

.nav-item i { width: 18px; height: 18px; flex-shrink: 0; }
.nav-item span { flex: 1; }

.nav-item:hover { background: var(--bg-3); color: var(--text-1); }
.nav-item.active { background: var(--accent-light); color: var(--accent); }
.nav-item.active i { color: var(--accent); }

.nav-badge {
  background: var(--red);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 20px;
  min-width: 18px;
  text-align: center;
}

.nav-badge-pending { background: var(--amber); }

.sidebar-footer {
  padding: 12px 10px;
  border-top: 1px solid var(--border);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: var(--bg-3);
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.user-name { font-size: 0.82rem; font-weight: 600; color: var(--text-1); }
.user-role { font-size: 0.72rem; color: var(--text-3); }

/* ── Overlay (mobile) ── */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 190;
}

/* ── Main ── */
.main-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg);
}

.topbar {
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-2);
  flex-shrink: 0;
  gap: 16px;
}

.topbar-left { display: flex; align-items: center; gap: 14px; }
.page-title-text { font-size: 1rem; font-weight: 700; color: var(--text-1); }
.page-desc-text { font-size: 0.75rem; color: var(--text-3); margin-top: 1px; }

#menuToggle { display: none; }

.topbar-right { display: flex; align-items: center; gap: 12px; }

.role-badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
  background: var(--accent-light);
  color: var(--accent);
}

.page-body {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

.page { display: none; }
.page.active { display: block; }

/* ═══════════════════════════════════════════
   COMPONENTS
   ═══════════════════════════════════════════ */

/* ── Cards ── */
.card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.card-title {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

/* ── Stat Cards ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.stat-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon i { width: 22px; height: 22px; }
.stat-icon.blue { background: var(--accent-light); color: var(--accent); }
.stat-icon.green { background: var(--green-light); color: var(--green); }
.stat-icon.amber { background: var(--amber-light); color: var(--amber); }
.stat-icon.red { background: var(--red-light); color: var(--red); }
.stat-icon.purple { background: var(--purple-light); color: var(--purple); }

.stat-info {}
.stat-label { font-size: 0.76rem; color: var(--text-3); font-weight: 500; margin-bottom: 4px; }
.stat-value { font-size: 1.5rem; font-weight: 700; color: var(--text-1); line-height: 1; }
.stat-sub { font-size: 0.72rem; color: var(--text-3); margin-top: 3px; }

/* ── Grid layouts ── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }

/* ── Section ── */
.section { margin-bottom: 24px; }
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  gap: 12px;
  flex-wrap: wrap;
}
.section-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-1);
}

/* ── Toolbar ── */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.toolbar-filters {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.toolbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* ── Table ── */
.table-wrap {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table thead tr {
  background: var(--bg-3);
  border-bottom: 1px solid var(--border);
}

.data-table th {
  padding: 11px 14px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-3);
  text-align: left;
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.data-table td {
  padding: 12px 14px;
  color: var(--text-2);
  font-size: 0.85rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.data-table tbody tr:last-child td { border-bottom: none; }

.data-table tbody tr:hover td { background: var(--bg-3); }

.data-table .td-main {
  font-weight: 600;
  color: var(--text-1);
}

.empty-row td {
  text-align: center;
  padding: 48px 14px;
  color: var(--text-3);
}

.table-overflow { overflow-x: auto; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  font-weight: 600;
  border: none;
  transition: all 0.15s;
  white-space: nowrap;
}

.btn i { width: 15px; height: 15px; }

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

.btn-secondary {
  background: var(--bg-3);
  color: var(--text-1);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--bg-4); border-color: var(--border-2); }

.btn-danger { background: var(--red-light); color: var(--red); border: 1px solid rgba(239,68,68,0.3); }
.btn-danger:hover { background: var(--red); color: #fff; }

.btn-success { background: var(--green-light); color: var(--green); border: 1px solid rgba(34,197,94,0.3); }
.btn-success:hover { background: var(--green); color: #fff; }

.btn-sm { padding: 5px 10px; font-size: 0.78rem; }
.btn-sm i { width: 13px; height: 13px; }

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: none;
  background: var(--bg-3);
  color: var(--text-2);
  transition: all 0.15s;
}
.btn-icon:hover { background: var(--bg-4); color: var(--text-1); }

.btn-full { width: 100%; justify-content: center; padding: 11px 16px; }

/* ── Forms ── */
.form-group { margin-bottom: 16px; }
.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-2);
  margin-bottom: 6px;
}

.form-input, .form-select {
  width: 100%;
  padding: 9px 12px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-1);
  font-size: 0.875rem;
  transition: border-color 0.15s, box-shadow 0.15s;
  outline: none;
  appearance: none;
}

.form-input:focus, .form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,126,248,0.15);
}

.form-input::placeholder { color: var(--text-3); }

select.form-input {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235c6880' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

select.form-input option { background: var(--bg-3); }

.filter-select {
  padding: 7px 30px 7px 10px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-2);
  font-size: 0.82rem;
  outline: none;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235c6880' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  transition: border-color 0.15s;
}
.filter-select:focus { outline: none; border-color: var(--accent); }
.filter-select option { background: var(--bg-3); }

/* ── Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 600;
  white-space: nowrap;
}

.badge-blue { background: var(--accent-light); color: var(--accent); }
.badge-green { background: var(--green-light); color: var(--green); }
.badge-amber { background: var(--amber-light); color: var(--amber); }
.badge-red { background: var(--red-light); color: var(--red); }
.badge-gray { background: var(--bg-4); color: var(--text-2); }
.badge-purple { background: var(--purple-light); color: var(--purple); }

/* ── Alerts ── */
.alert {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.alert-danger { background: var(--red-light); color: var(--red); border: 1px solid rgba(239,68,68,0.3); }
.alert-success { background: var(--green-light); color: var(--green); border: 1px solid rgba(34,197,94,0.3); }
.alert-warning { background: var(--amber-light); color: var(--amber); border: 1px solid rgba(245,158,11,0.3); }
.alert-info { background: var(--accent-light); color: var(--accent); border: 1px solid rgba(79,126,248,0.3); }

/* ── Modal ── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

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

.modal {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
  animation: modalIn 0.2s ease;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

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

.modal-title { font-size: 1rem; font-weight: 700; color: var(--text-1); }

.modal-body { padding: 20px 24px; }

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
}

/* ── Loading ── */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px;
  color: var(--text-3);
  gap: 10px;
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Divider ── */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 20px 0;
}

/* ── Chart container ── */
.chart-container {
  position: relative;
  height: 260px;
}

/* ── Stock indicator ── */
.stock-bar-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}
.stock-bar-bg {
  flex: 1;
  height: 6px;
  background: var(--bg-4);
  border-radius: 3px;
  overflow: hidden;
}
.stock-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.3s;
}

/* ── Tabs ── */
.tabs {
  display: flex;
  gap: 2px;
  background: var(--bg-3);
  border-radius: var(--radius-sm);
  padding: 3px;
  margin-bottom: 20px;
}

.tab {
  flex: 1;
  padding: 7px 12px;
  text-align: center;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-3);
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.15s;
  border: none;
  background: none;
}

.tab.active { background: var(--bg-2); color: var(--text-1); }

/* ── Chips (filter tags) ── */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-2);
  cursor: pointer;
  transition: all 0.15s;
}
.chip:hover, .chip.active { background: var(--accent-light); color: var(--accent); border-color: rgba(79,126,248,0.4); }

/* ── Settlement table ── */
.settlement-total {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
  padding: 14px 20px;
  background: var(--bg-3);
  border-top: 1px solid var(--border);
  font-weight: 700;
}

.settlement-amount {
  font-size: 1.2rem;
  color: var(--accent);
}

/* ── Request items form ── */
.req-items-container {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.req-item-row {
  display: grid;
  grid-template-columns: 1fr 120px 36px;
  gap: 8px;
  align-items: end;
}

/* ── Print styles ── */
@media print {
  body > *:not(#printArea) { display: none !important; }
  #printArea { display: block !important; }
  * { color-adjust: exact; -webkit-print-color-adjust: exact; }
}

/* ═══════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════ */
@media (max-width: 1024px) {
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-overlay.open { display: block; }

  .sidebar-close { display: flex; }

  #menuToggle { display: flex; }

  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }

  .page-body { padding: 16px; }
}

@media (max-width: 640px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .topbar { padding: 0 16px; }
  .modal { max-width: 100%; }
  .req-item-row { grid-template-columns: 1fr 90px 36px; }
}