/* ================================================================
   EPF Admin Dashboard — Premium Dark Theme
   ================================================================ */

/* ── Reset & Base ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #F6F6FB;
  --bg2:         #FFFFFF;
  --card:        #FFFFFF;
  --card-hover:  #FBFAFF;
  --card-border: #ECECF5;
  --surface:     #FFFFFF;
  --text:        #1E1E2D;
  --text2:       #5B5B76;
  --text3:       #9494AC;
  --accent:      #6C5CE7;
  --accent2:     #5847D4;
  --accent-glow: rgba(108, 92, 231, .16);
  --green:       #1FAA59;
  --green-glow:  rgba(31,170,89,.12);
  --amber:       #DE9A1F;
  --red:         #E5484D;
  --blue:        #4C6FFF;
  --purple:      #A855F7;
  --sidebar-w:   260px;
  --topbar-h:    64px;
  --radius:      16px;
  --radius-sm:   10px;
  --shadow:      0 2px 14px rgba(30,30,45,.06);
  --shadow-lg:   0 12px 40px rgba(30,30,45,.14);
  --transition:  .2s cubic-bezier(.4,0,.2,1);
  --font:        'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Inter', -apple-system, sans-serif;
  --font-mono:    'Inter', -apple-system, sans-serif;
}

html[data-theme="dark"] {
  --bg: #14141F;
  --bg2: #1A1A26;
  --card: #1C1C29;
  --card-hover: #22222F;
  --card-border: #2A2A3A;
  --surface: #1C1C29;
  --text: #EDEDF2;
  --text2: #A8A8BD;
  --text3: #6E6E85;
  --accent: #8B7CF6;
  --accent2: #A498FF;
  --accent-glow: rgba(139, 124, 246, .22);
  --green: #34D399;
  --green-glow: rgba(52, 211, 153, .16);
  --amber: #F0B429;
  --red: #F16063;
  --blue: #6E8CFF;
  --purple: #C084FC;
  --shadow: 0 2px 14px rgba(0,0,0,.35);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.5);
}

body, .card, .sidebar, .stat-card, .modal, thead th, tbody td { 
  transition: background-color .25s ease, color .25s ease, border-color .25s ease; 
}

html { font-size: 14px; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow: hidden;
  height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
::selection { background: var(--accent); color: #fff; }
h1, h2, h3 { font-family: var(--font-heading); }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--card-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text3); }

/* ── Layout ────────────────────────────────────────────────────── */
.app { display: flex; height: 100vh; }

/* ── Sidebar ───────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--card-border);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition);
  z-index: 100;
}
.sidebar.collapsed { transform: translateX(-100%); min-width: 0; width: 0; }

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--card-border);
}
.brand-icon {
  font-size: 18px;
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  border-radius: 10px;
  color: #fff;
}
.brand-title { font-size: 15.5px; font-weight: 700; letter-spacing: -.2px; font-family: var(--font-heading); color: var(--text); }
.brand-sub { font-size: 11px; color: var(--text3); font-weight: 500; text-transform: uppercase; letter-spacing: .6px; }

.sidebar-nav { flex: 1; padding: 14px 12px; overflow-y: auto; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  color: var(--text2);
  font-weight: 500;
  font-size: 13.5px;
  cursor: pointer;
  transition: all var(--transition);
  margin-bottom: 2px;
}
.nav-item:hover { background: var(--bg); color: var(--text); }
.nav-item.active {
  background: var(--accent-glow);
  color: var(--accent2);
  font-weight: 600;
  box-shadow: none;
}
.nav-icon { font-size: 16px; width: 20px; text-align: center; opacity: .85; }
.nav-item.active .nav-icon { opacity: 1; }

.sidebar-footer {
  padding: 14px;
  border-top: 1px solid var(--card-border);
}
.version { font-size: 10px; color: var(--text3); margin-top: 8px; }
.version-badge-container {
  transition: all var(--transition);
  box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}
.version-badge-container:hover {
  background: var(--card) !important;
  border-color: var(--primary) !important;
  box-shadow: 0 4px 12px rgba(37,99,235,0.08);
  transform: translateY(-1px);
}

/* ── Main ──────────────────────────────────────────────────────── */
.main { flex: 1; display: flex; flex-direction: column; overflow: hidden; }

.topbar {
  height: var(--topbar-h);
  min-height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 24px;
  background: var(--bg2);
  border-bottom: 1px solid var(--card-border);
}
.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 22px;
  cursor: pointer;
}
.topbar-title { font-size: 18px; font-weight: 700; letter-spacing: -.3px; }
.theme-toggle-btn {
  margin-left: auto;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--card-border);
  color: var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
  padding: 0;
  transition: all var(--transition);
  outline: none;
  flex-shrink: 0;
}
.theme-toggle-btn:hover {
  background: var(--card-hover);
  border-color: var(--accent);
  transform: scale(1.05);
}
.topbar-right { display: flex; align-items: center; gap: 12px; color: var(--text2); font-size: 12px; }

.content {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  background: var(--bg);
}

/* ── Cards ─────────────────────────────────────────────────────── */
.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 20px;
  transition: all var(--transition);
}
.card:hover { border-color: var(--accent); }

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.card-title { font-size: 15px; font-weight: 600; }
.card-subtitle { font-size: 12px; color: var(--text3); margin-top: 2px; }

/* Stat Cards */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-bottom: 24px; }

.stat-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 20px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: transparent; }
.stat-card.blue   .stat-icon { background: rgba(76,111,255,.12); color: var(--blue); }
.stat-card.green  .stat-icon { background: var(--green-glow); color: var(--green); }
.stat-card.purple .stat-icon { background: rgba(168,85,247,.12); color: var(--purple); }
.stat-card.amber  .stat-icon { background: rgba(222,154,31,.14); color: var(--amber); }

.stat-icon {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 11px;
  font-size: 18px;
  margin-bottom: 14px;
}
.stat-value { font-size: 26px; font-weight: 700; letter-spacing: -.4px; margin-bottom: 2px; color: var(--text); }
.stat-label { font-size: 12px; color: var(--text3); font-weight: 500; }

/* Chart Cards */
.charts-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; }
.chart-card { background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius); padding: 20px; }
.chart-title { font-size: 14px; font-weight: 600; margin-bottom: 16px; }
.chart-wrap { position: relative; height: 280px; }

/* ── Tables ────────────────────────────────────────────────────── */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
thead th {
  background: var(--bg);
  color: var(--text3);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .5px;
  padding: 12px 14px;
  text-align: left;
  white-space: nowrap;
  position: sticky;
  top: 0;
  z-index: 2;
  border-bottom: 1px solid var(--card-border);
}
tbody td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--card-border);
  white-space: nowrap;
}
tbody tr { transition: background var(--transition); }
tbody tr:hover { background: var(--accent-glow); }
tbody tr:nth-child(even) { background: transparent; }
tbody tr:nth-child(even):hover { background: var(--accent-glow); }
tbody tr.grand-total {
  background: var(--bg) !important;
  font-weight: 700;
}
th.num, td.num { text-align: right !important; font-variant-numeric: tabular-nums; }
th.num[style*="text-align:center"], td.num[style*="text-align:center"] { text-align: center !important; }
td.actions { text-align: center; white-space: nowrap; }
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 50px;
  font-size: 11px;
  font-weight: 600;
}
.badge-blue   { background: rgba(76,111,255,.12); color: var(--blue); }
.badge-green  { background: var(--green-glow); color: var(--green); }
.badge-amber  { background: rgba(222,154,31,.14); color: var(--amber); }
.badge-red    { background: rgba(229,72,77,.12); color: var(--red); }
.badge-purple { background: rgba(168,85,247,.12); color: var(--purple); }

.superannuation-row { background: rgba(239,68,68,.08) !important; }

/* ── Buttons ───────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent2); }

.btn-success {
  background: var(--green);
  color: #fff;
}
.btn-success:hover { filter: brightness(.93); }
.btn-danger {
  background: var(--red);
  color: #fff;
}
.btn-danger:hover { filter: brightness(.93); }
.btn-ghost {
  background: transparent;
  color: var(--text2);
  border: 1px solid var(--card-border);
}
.btn-ghost:hover { background: var(--bg); color: var(--text); border-color: var(--card-border); }

.btn-glass {
  background: var(--bg);
  color: var(--text2);
  border: 1px solid var(--card-border);
}
.btn-glass:hover { background: var(--card-hover); color: var(--text); }

.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-xs { padding: 4px 8px; font-size: 11px; border-radius: 6px; }
.btn-icon { padding: 6px 8px; }

.btn-group { display: flex; gap: 8px; flex-wrap: wrap; }

/* ── Forms ─────────────────────────────────────────────────────── */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 4px; }
.form-group.full { grid-column: 1 / -1; }
.form-label { font-size: 12px; font-weight: 600; color: var(--text2); text-transform: uppercase; letter-spacing: .5px; }

.form-input, .form-select {
  padding: 10px 14px;
  background: var(--surface);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font);
  font-size: 13px;
  transition: all var(--transition);
  outline: none;
  width: 100%;
}
.form-input:focus, .form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-input::placeholder { color: var(--text3); }
.form-input.sm { padding: 7px 10px; font-size: 12px; }

input[type="date"] { color-scheme: light; }
html[data-theme="dark"] input[type="date"] { color-scheme: dark; }

.form-select { cursor: pointer; }
.form-select option { background: var(--card); }

.form-row { display: flex; gap: 12px; align-items: flex-end; }

/* Search */
.search-box {
  position: relative;
  max-width: 320px;
}
.search-box .form-input { padding-left: 36px; }
.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text3);
  font-size: 14px;
  pointer-events: none;
}

/* Toolbar */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.toolbar-left { display: flex; align-items: center; gap: 8px; }
.toolbar-right { display: flex; align-items: center; gap: 8px; }

/* ── Modal ─────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  backdrop-filter: blur(4px);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
.modal-overlay.open { opacity: 1; pointer-events: all; }

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(.95);
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  z-index: 201;
  width: 90%;
  max-width: 640px;
  max-height: 85vh;
  overflow-y: auto;
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition);
}
.modal.open { opacity: 1; pointer-events: all; transform: translate(-50%, -50%) scale(1); }
.modal.wide { max-width: 1400px; width: 95%; }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--card-border);
}
.modal-title { font-size: 17px; font-weight: 700; }
.modal-close {
  background: none;
  border: none;
  color: var(--text3);
  font-size: 22px;
  cursor: pointer;
  padding: 4px;
  line-height: 1;
  transition: color var(--transition);
}
.modal-close:hover { color: var(--text); }

.modal-body { padding: 24px; }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 16px 24px;
  border-top: 1px solid var(--card-border);
}

/* ── Toast ─────────────────────────────────────────────────────── */
.toast-box {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow);
  animation: slideIn .3s ease;
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 280px;
}
.toast-success { background: var(--green); color: #fff; }
.toast-error   { background: var(--red); color: #fff; }
.toast-info    { background: var(--accent); color: #fff; }
.toast { border-radius: var(--radius-sm); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

/* ── Loading ───────────────────────────────────────────────────── */
.page-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 300px;
  color: var(--text3);
  gap: 16px;
}
.spinner {
  width: 36px; height: 36px;
  border: 3px solid var(--card-border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Page-specific ─────────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.page-desc { color: var(--text2); font-size: 13px; max-width: 600px; }

.section-title { font-size: 15px; font-weight: 700; margin-bottom: 12px; }

/* Establishment card */
.est-card { max-width: 700px; }

/* Year cards grid */
.year-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.year-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 18px;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}
.year-card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow); }
.year-card.active { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-glow); }
.year-card-title { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.year-card-scheme { font-size: 11px; color: var(--text3); margin-bottom: 10px; }
.year-card-stat { font-size: 12px; color: var(--text2); display: flex; justify-content: space-between; padding: 2px 0; }
.year-card-stat span:last-child { font-weight: 600; color: var(--text); }
.year-card-actions { display: flex; gap: 6px; margin-top: 10px; }

/* Wages */
.wage-table input {
  background: var(--surface);
  border: 1px solid var(--card-border);
  border-radius: 4px;
  color: var(--text);
  padding: 5px 8px;
  width: 80px;
  font-family: var(--font);
  font-size: 12px;
  text-align: right;
  outline: none;
  transition: border-color var(--transition);
}
.wage-table input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

/* Hide spin buttons for number inputs */
input[type=number]::-webkit-inner-spin-button, 
input[type=number]::-webkit-outer-spin-button { 
  -webkit-appearance: none; 
  margin: 0; 
}
input[type=number] {
  -moz-appearance: textfield;
}

/* Reports */
.report-options { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; margin: 16px 0; }
.report-opt {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 16px;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}
.report-opt:hover { border-color: var(--accent); }
.report-opt.selected { border-color: var(--accent); background: rgba(59,130,246,.08); }
.report-opt-icon { font-size: 32px; margin-bottom: 8px; }
.report-opt-title { font-size: 13px; font-weight: 600; }
.report-opt-desc { font-size: 11px; color: var(--text3); margin-top: 4px; }

/* Empty state */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text3);
}
.empty-state-icon { font-size: 48px; margin-bottom: 12px; }
.empty-state-text { font-size: 14px; }

/* Fade in animation */
.fade-in { animation: fadeIn .4s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* ── Responsive ────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .charts-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .form-grid-3 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .sidebar { position: fixed; left: 0; top: 0; bottom: 0; transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .hamburger { display: block; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .modal { width: 95%; }
  .content { padding: 16px; }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .form-grid-3 { grid-template-columns: 1fr; }
}

/* All Establishments */
.est-row-wagegrid td { padding-top: 14px; padding-bottom: 18px; }
.est-wage-grid { display: flex; flex-direction: column; gap: 10px; }
.est-wage-year { display: flex; align-items: center; gap: 10px; font-size: 12px; }
.est-wage-boxes { display: flex; gap: 5px; flex-wrap: wrap; }
.est-wage-header { margin-bottom: 3px; }
.month-box-label { width: 30px; text-align: center; font-size: 9px; font-weight: 700; letter-spacing: 0.3px; color: var(--text3); }
.month-box { width: 30px; height: 30px; border-radius: 6px; position: relative; cursor: help; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; color: #fff; text-shadow: 0 1px 1px rgba(0,0,0,.25); }
.month-box.green { background: var(--green); }
.month-box.red { background: var(--red); }
.month-box:hover::after { content: attr(title); position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%); background: #000; color: #fff; padding: 4px 6px; border-radius: 4px; font-size: 10px; white-space: nowrap; z-index: 10; pointer-events: none; margin-bottom: 4px; font-weight: 500; }
.status-badge { padding: 4px 10px; border-radius: 20px; font-size: 11px; font-weight: 600; white-space: nowrap; }
.status-active { background: var(--green-glow); color: var(--green); }
.status-inactive { background: rgba(229,72,77,.12); color: var(--red); }

@media print {
  body * {
    visibility: hidden;
  }
  #r-emp-history-view, #r-emp-history-view * {
    visibility: visible;
  }
  #r-emp-history-view {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    margin: 0;
    padding: 0;
    border: none;
    box-shadow: none;
  }
  .no-print {
    display: none !important;
  }
  
  #r-emp-history-view table {
    border-collapse: collapse !important;
    width: 100% !important;
    margin-top: 16px !important;
  }
  
  #r-emp-history-view th,
  #r-emp-history-view td {
    border: 1px solid #000 !important;
    padding: 8px !important;
  }
  
  #r-emp-history-view th {
    background-color: #f0f0f0 !important;
    color: #000 !important;
    font-weight: 900 !important;
    -webkit-print-color-adjust: exact;
    color-adjust: exact;
  }
  
  #r-emp-history-view > div:first-child {
    border: 1px solid #000 !important;
  }
}