@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg:        #0d0f14;
  --surface:   #151821;
  --card:      #1c2030;
  --border:    #262d40;
  --accent:    #f5a623;
  --accent2:   #e8430a;
  --green:     #2ecc71;
  --red:       #e74c3c;
  --yellow:    #f39c12;
  --blue:      #3498db;
  --text:      #e8eaf0;
  --muted:     #7a8099;
  --font:      'Inter', system-ui, sans-serif;
  --mono:      'JetBrains Mono', monospace;
  --display:   'Inter', system-ui, sans-serif;
  --radius:    6px;
  --sidebar-w: 240px;
}

[data-theme="light"] {
  --bg:      #f0f2f7;
  --surface: #ffffff;
  --card:    #ffffff;
  --border:  #dde1ec;
  --text:    #1a1d2e;
  --muted:   #5a5f7a;
  --accent:  #d4890a;
  --accent2: #c93a08;
  --green:   #1b9e54;
  --red:     #c0392b;
  --yellow:  #d4850a;
  --blue:    #2471a3;
}

[data-theme="light"] body {
  background: var(--bg);
  color: var(--text);
}

[data-theme="light"] td {
  border-bottom: 1px solid rgba(0,0,0,0.06);
  color: var(--text);
}

[data-theme="light"] tr:hover td {
  background: rgba(0,0,0,0.02);
}

[data-theme="light"] input,
[data-theme="light"] select,
[data-theme="light"] textarea {
  background: #f8f9fc;
  color: var(--text);
  border-color: #ccd0dc;
}

[data-theme="light"] select option {
  background: #ffffff;
  color: var(--text);
}

[data-theme="light"] .modal-overlay {
  background: rgba(0,0,0,0.4);
}

[data-theme="light"] .nav-link:hover {
  background: rgba(0,0,0,0.04);
}

[data-theme="light"] .stat-value {
  color: var(--text);
}

[data-theme="light"] .panel-title {
  color: var(--text);
}

[data-theme="light"] .topbar-title {
  color: var(--text);
}

[data-theme="light"] .badge {
  font-weight: 700;
}

[data-theme="light"] .mono {
  color: var(--text);
}

[data-theme="light"] .alert-error {
  background: rgba(192,57,43,0.08);
  border-color: rgba(192,57,43,0.25);
  color: #922b21;
}

[data-theme="light"] .alert-success {
  background: rgba(27,158,84,0.08);
  border-color: rgba(27,158,84,0.25);
  color: #148f4b;
}

[data-theme="light"] ::-webkit-scrollbar-track { background: var(--bg); }
[data-theme="light"] ::-webkit-scrollbar-thumb { background: var(--border); }

[data-theme="light"] .sidebar { background: #ffffff; border-color: #dde1ec; }
[data-theme="light"] .sidebar-logo h1 { color: var(--accent); }
[data-theme="light"] .nav-link.active { color: var(--accent); background: rgba(212,137,10,0.06); border-left-color: var(--accent); }
[data-theme="light"] .sidebar-footer { border-color: #dde1ec; }
[data-theme="light"] .topbar { background: #ffffff; border-color: #dde1ec; }
[data-theme="light"] .filter-bar { background: #ffffff; border-color: #dde1ec; }
[data-theme="light"] .panel { background: #ffffff; border-color: #dde1ec; }
[data-theme="light"] .panel-header { border-color: #dde1ec; }
[data-theme="light"] .stat-card { background: #ffffff; border-color: #dde1ec; }
[data-theme="light"] #toast { background: #ffffff; border-color: #dde1ec; color: var(--text); }
[data-theme="light"] .btn-ghost { color: var(--text); border-color: #dde1ec; }
[data-theme="light"] .btn-ghost:hover { border-color: #aab0c0; }
[data-theme="light"] .modal { background: #ffffff; border-color: #dde1ec; }
[data-theme="light"] .modal-header { border-color: #eef0f5; }
[data-theme="light"] .modal-footer { border-color: #eef0f5; }
[data-theme="light"] .modal-title { color: var(--text); }
[data-theme="light"] .modal-close:hover { background: #eef0f5; color: var(--text); }
[data-theme="light"] th { color: #5a5f7a; border-color: #dde1ec; }
[data-theme="light"] strong { color: var(--text); }

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
}

/* ── Sidebar ── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
}

.sidebar-logo {
  padding: 24px 20px 20px;
  border-bottom: 1px solid var(--border);
}

.sidebar-logo .logo-icon {
  font-size: 28px;
  line-height: 1;
}

.sidebar-logo h1 {
  font-family: var(--display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 6px;
  line-height: 1.1;
}

.sidebar-logo p {
  font-size: 11px;
  color: var(--muted);
  margin-top: 2px;
  letter-spacing: 0.5px;
}

.sidebar-nav {
  padding: 16px 0;
  flex: 1;
}

.nav-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  padding: 8px 20px 4px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.15s;
  border-left: 3px solid transparent;
}

.nav-link:hover {
  color: var(--text);
  background: rgba(255,255,255,0.04);
}

.nav-link.active {
  color: var(--accent);
  background: rgba(245,166,35,0.08);
  border-left-color: var(--accent);
}

.nav-link .icon { font-size: 16px; width: 20px; text-align: center; }

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--muted);
}

/* ── Main content ── */
.main {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 28px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar-title {
  font-family: var(--display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

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

.content {
  padding: 28px;
  flex: 1;
}

/* ── Stats cards ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent);
}

.stat-card.green::before  { background: var(--green); }
.stat-card.red::before    { background: var(--red); }
.stat-card.blue::before   { background: var(--blue); }
.stat-card.yellow::before { background: var(--yellow); }

.stat-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.stat-value {
  font-family: var(--display);
  font-size: 32px;
  font-weight: 800;
  line-height: 1;
  color: var(--text);
}

.stat-sub {
  font-size: 12px;
  color: var(--muted);
  margin-top: 6px;
}

/* ── Cards / panels ── */
.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.panel-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.panel-title {
  font-family: var(--display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text);
}

.panel-body { padding: 20px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 2fr 1fr; gap: 20px; }

/* ── Tables ── */
.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

th {
  text-align: left;
  padding: 10px 14px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

td {
  padding: 12px 14px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  vertical-align: middle;
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,0.02); }

.mono { font-family: var(--mono); font-size: 12px; }

/* ── Badges ── */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 3px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.badge-paid    { background: rgba(46,204,113,0.15); color: var(--green); }
.badge-unpaid  { background: rgba(231,76,60,0.15);  color: var(--red); }
.badge-partial { background: rgba(243,156,18,0.15); color: var(--yellow); }
.badge-cash    { background: rgba(52,152,219,0.15); color: var(--blue); }
.badge-credit  { background: rgba(245,166,35,0.15); color: var(--accent); }
.badge-petrol  { background: rgba(46,204,113,0.12);  color: #2ecc71; }
.badge-diesel  { background: rgba(52,152,219,0.12); color: #3498db; }
.badge-kerosene{ background: rgba(46,204,113,0.12); color: #7ae0a8; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.15s;
  letter-spacing: 0.3px;
}

.btn-primary {
  background: var(--accent);
  color: #000;
}

.btn-primary:hover { background: #e09510; }

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

.btn-ghost:hover { color: var(--text); border-color: var(--muted); }

.btn-danger {
  background: rgba(231,76,60,0.15);
  color: var(--red);
  border: 1px solid rgba(231,76,60,0.3);
}

.btn-sm { padding: 5px 10px; font-size: 12px; }

/* ── Forms ── */
.form-grid { display: grid; gap: 16px; }
.form-grid-2 { grid-template-columns: 1fr 1fr; }
.form-grid-3 { grid-template-columns: 1fr 1fr 1fr; }

.form-group { display: flex; flex-direction: column; gap: 6px; }

label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted);
}

input, select, textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 9px 12px;
  color: var(--text);
  font-family: var(--font);
  font-size: 13.5px;
  transition: border-color 0.15s;
  width: 100%;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}

select option { background: var(--card); }

textarea { resize: vertical; min-height: 80px; }

/* ── Modal ── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 200;
  align-items: center;
  justify-content: center;
}

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

.modal {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  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 {
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-family: var(--display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.modal-close {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 20px;
  cursor: pointer;
  line-height: 1;
  padding: 2px 6px;
  border-radius: 4px;
}

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

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

/* ── Filter bar ── */
.filter-bar {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.filter-bar label { margin-bottom: 0; }

.filter-bar select,
.filter-bar input[type="text"],
.filter-bar input[type="date"] {
  width: auto;
  min-width: 0;
  padding: 7px 10px;
  font-size: 13px;
}

/* ── Alerts ── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 13.5px;
  margin-bottom: 16px;
}

.alert-success { background: rgba(46,204,113,0.1); border: 1px solid rgba(46,204,113,0.3); color: var(--green); }
.alert-error   { background: rgba(231,76,60,0.1);  border: 1px solid rgba(231,76,60,0.3);  color: var(--red); }

/* ── Misc ── */
.empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--muted);
}

.empty-state .empty-icon { font-size: 40px; margin-bottom: 12px; }
.empty-state p { font-size: 14px; }

.balance-high  { color: var(--red); font-weight: 600; }
.balance-mid   { color: var(--yellow); font-weight: 600; }
.balance-low   { color: var(--muted); }

.divider { height: 1px; background: var(--border); margin: 20px 0; }

.text-right { text-align: right; }
.text-muted { color: var(--muted); }
.text-sm    { font-size: 12px; }
.mt-4       { margin-top: 16px; }
.mb-4       { margin-bottom: 16px; }
.gap-2      { gap: 8px; }
.flex       { display: flex; align-items: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }

/* ── Toast ── */
#toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 18px;
  font-size: 13.5px;
  font-weight: 500;
  z-index: 9999;
  display: none;
  animation: slideUp 0.2s ease;
  min-width: 220px;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

#toast.success { border-left: 3px solid var(--green); }
#toast.error   { border-left: 3px solid var(--red); }

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


/* ── Modal large ── */
.modal-lg { max-width: 640px; }

/* ── Responsive / Mobile ── */
@media (max-width: 768px) {
  :root { --sidebar-w: 0px; }

  .sidebar {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    width: 280px;
    transform: translateX(-100%);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 200;
    box-shadow: none;
    overflow-y: auto;
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 32px rgba(0,0,0,0.4);
  }

  .sidebar.open::after {
    content: '';
    position: fixed;
    top: 0; left: 280px; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: -1;
  }

  .sidebar-logo { padding: 20px 18px 16px; }
  .sidebar-logo h1 { font-size: 18px; }

  .nav-link {
    padding: 14px 20px;
    font-size: 15px;
    border-left-width: 4px;
  }

  .main { margin-left: 0; }

  .topbar {
    padding: 0 14px;
    height: 56px;
    gap: 8px;
  }

  .topbar::before {
    content: '☰';
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
    margin-right: 8px;
    border-radius: 6px;
    min-width: 40px;
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .topbar-title { font-size: 14px; letter-spacing: 0.5px; }

  .topbar-right {
    gap: 6px;
    flex-shrink: 0;
  }

  .topbar-right .btn {
    padding: 8px 10px;
    font-size: 12px;
    min-height: 36px;
  }

  .content { padding: 12px; }

  /* Stats grid — 2 columns, compact */
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 16px;
  }

  .stat-card {
    padding: 12px;
    border-radius: 8px;
  }

  .stat-label { font-size: 9px; letter-spacing: 1px; margin-bottom: 4px; }
  .stat-value { font-size: 18px; }
  .stat-sub { font-size: 10px; margin-top: 3px; }

  .grid-3, .grid-2 { grid-template-columns: 1fr; gap: 12px; }

  /* Filter bar — horizontal scroll */
  .filter-bar {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding: 10px 12px;
    gap: 8px;
    margin-bottom: 12px;
    border-radius: 8px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .filter-bar::-webkit-scrollbar { display: none; }

  .filter-bar label { display: none; }

  .filter-bar select,
  .filter-bar input[type="text"],
  .filter-bar input[type="date"] {
    min-width: 110px;
    flex-shrink: 0;
    padding: 9px 10px;
    font-size: 13px;
    border-radius: 6px;
  }

  /* Tables: horizontal scroll, bigger touch */
  .table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: 8px;
  }

  table { font-size: 12px; min-width: 580px; }
  th { padding: 10px 8px; font-size: 9px; }
  td { padding: 12px 8px; }

  /* Buttons: bigger touch targets */
  .btn {
    padding: 11px 16px;
    font-size: 13px;
    min-height: 42px;
    border-radius: 8px;
  }

  .btn-sm {
    padding: 9px 12px;
    font-size: 12px;
    min-height: 36px;
    border-radius: 6px;
  }

  .btn-primary { font-weight: 700; }

  /* Modal — full screen bottom sheet */
  .modal-overlay {
    align-items: flex-end;
    padding: 0;
  }

  .modal {
    max-width: 100%;
    width: 100%;
    max-height: 94vh;
    border-radius: 20px 20px 0 0;
    margin: 0;
  }

  .modal-header {
    padding: 18px 20px 14px;
    position: sticky;
    top: 0;
    background: var(--card);
    z-index: 10;
    border-radius: 20px 20px 0 0;
  }

  .modal-title { font-size: 15px; }
  .modal-body { padding: 16px 20px 24px; }
  .modal-footer {
    padding: 14px 20px;
    position: sticky;
    bottom: 0;
    background: var(--card);
    z-index: 10;
  }

  .modal-footer .btn { flex: 1; justify-content: center; }

  /* Forms */
  .form-grid { gap: 14px; }
  .form-grid-2, .form-grid-3 { grid-template-columns: 1fr; }

  .form-group label { font-size: 10px; }

  input, select, textarea {
    padding: 12px 14px;
    font-size: 15px;
    border-radius: 8px;
    /* Prevent zoom on iOS */
    font-size: max(16px, 1em);
  }

  textarea { min-height: 70px; }

  /* Panel */
  .panel {
    border-radius: 10px;
    overflow: hidden;
  }

  .panel-header {
    padding: 12px 14px;
    flex-wrap: wrap;
    gap: 6px;
  }

  .panel-title { font-size: 12px; }

  /* Alerts */
  .alert { padding: 12px 14px; font-size: 13px; border-radius: 8px; }

  /* Badges */
  .badge { padding: 3px 6px; font-size: 10px; }

  /* Flex gap */
  .flex.gap-2 { gap: 6px; }

  /* Sidebar footer */
  .sidebar-footer { padding: 14px 18px; }

  /* Empty state */
  .empty-state { padding: 32px 16px; }
  .empty-state .empty-icon { font-size: 32px; }
  .empty-state p { font-size: 13px; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; gap: 8px; }
  .stat-card { padding: 14px 12px; display: flex; align-items: center; justify-content: space-between; }
  .stat-card::before { height: 100%; width: 3px; top: 0; left: 0; right: auto; bottom: 0; }
  .stat-value { font-size: 20px; text-align: right; }
  .stat-label { font-size: 10px; }
  .stat-sub { display: none; }

  .topbar-title { font-size: 13px; }

  .content { padding: 10px; }

  table { min-width: 500px; font-size: 11px; }
  th { font-size: 8px; }
  td { padding: 10px 6px; }

  .modal-body { padding: 14px 16px 20px; }
}

/* ── Safe area for notched phones ── */
@supports (padding: env(safe-area-inset-top)) {
  .topbar { padding-top: env(safe-area-inset-top); }
  .sidebar { padding-top: env(safe-area-inset-top); }
  .modal-footer { padding-bottom: env(safe-area-inset-bottom); }
}

/* ── Print ── */
@media print {
  .sidebar, .topbar, .btn, .modal-overlay, .filter-bar, #toast { display: none !important; }
  .main { margin-left: 0; }
  .content { padding: 0; }
  body { background: white; color: black; }
  .panel { border: 1px solid #ddd; }
  .stat-card { border: 1px solid #ddd; }
}