/* ========================================================================
   TMS application stylesheet.
   Single :root / [data-theme="dark"] variable block drives the whole app.
   ======================================================================== */

:root {
  /* Backgrounds */
  --bg-page:        #F4F6F9;
  --bg-surface:     #FFFFFF;
  --bg-subtle:      #EEF3FB;
  --bg-selected:    #D6E6F7;

  /* Primary blue */
  --blue-primary:   #1A56A0;
  --blue-hover:     #2E6FC4;
  --blue-muted:     #5C7A9F;

  /* Text */
  --text-primary:   #0F1C2E;
  --text-secondary: #4A6580;
  --text-disabled:  #9BB2C8;

  /* Borders */
  --border:         #CBD5E1;
  --border-strong:  #94A8BE;

  /* Status */
  --status-success:       #16A34A;
  --status-success-bg:    #DCFCE7;
  --status-success-text:  #15803D;

  --status-warning:       #D97706;
  --status-warning-bg:    #FEF3C7;
  --status-warning-text:  #B45309;

  --status-danger:        #DC2626;
  --status-danger-bg:     #FEE2E2;
  --status-danger-text:   #B91C1C;

  --status-info:          #1A56A0;
  --status-info-bg:       #D6E6F7;
  --status-info-text:     #1A56A0;

  /* Misc */
  --radius-sm:  6px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --shadow-card: 0 1px 3px rgba(15,28,46,0.08);
}

[data-theme="dark"] {
  --bg-page:        #18191F;
  --bg-surface:     #22232B;
  --bg-subtle:      #2A2B34;
  --bg-selected:    #252A3D;

  --blue-primary:   #5B9BD5;
  --blue-hover:     #74AEE0;
  --blue-muted:     #6B7280;

  --text-primary:   #E2E4EA;
  --text-secondary: #8B909E;
  --text-disabled:  #454854;

  --border:         #2E3039;
  --border-strong:  #42454F;

  --status-success:       #4ADE80;
  --status-success-bg:    #1A2E1E;
  --status-success-text:  #4ADE80;

  --status-warning:       #FCD34D;
  --status-warning-bg:    #2E2210;
  --status-warning-text:  #FCD34D;

  --status-danger:        #F87171;
  --status-danger-bg:     #2E1515;
  --status-danger-text:   #F87171;

  --status-info:          #5B9BD5;
  --status-info-bg:       #1E2A3D;
  --status-info-text:     #5B9BD5;

  --shadow-card: 0 1px 3px rgba(0,0,0,0.5);
}

/* ---- Base ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  color: var(--text-primary);
  background: var(--bg-page);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, h5, h6 { margin: 0 0 .25rem; color: var(--text-primary); }
h1 { font-size: 26px; font-weight: 600; }
h2 { font-size: 21px; font-weight: 600; }
h3 { font-size: 17px; font-weight: 500; }
p  { margin: .25rem 0 .75rem; }
a { color: var(--blue-primary); text-decoration: none; }
a:hover { color: var(--blue-hover); text-decoration: underline; }
.muted { color: var(--text-secondary); }
.mono { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: 16px; color: var(--text-secondary); }

/* ---- Scrollbars (themed) ------------------------------------------------- */
html { scrollbar-color: var(--border-strong) var(--bg-page); scrollbar-width: thin; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-page); }
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 8px;
  border: 2px solid var(--bg-page);
}
::-webkit-scrollbar-thumb:hover { background: var(--blue-muted); }
::-webkit-scrollbar-corner { background: var(--bg-page); }

/* ---- App shell ----------------------------------------------------------- */
.app {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}
.main { display: flex; flex-direction: column; min-width: 0; }

.content {
  padding: 20px 28px 40px;
  width: 100%;
}

/* ---- Sidebar ------------------------------------------------------------- */
.sidebar {
  background: var(--bg-page);
  border-right: 1px solid var(--border);
  padding: 16px 10px 24px;
  position: sticky; top: 0; align-self: start;
  height: 100vh;
  overflow-y: auto;
}
.sidebar-brand {
  padding: 6px 12px 18px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}
.brand-mark {
  font-weight: 700; letter-spacing: .08em;
  color: var(--blue-primary); font-size: 19px;
}
.brand-company { display: block; font-size: 14px; color: var(--text-secondary); margin-top: 3px; }
.sidebar-nav { display: flex; flex-direction: column; gap: 1px; }
.nav-section {
  font-size: 17px; font-weight: 600;
  color: var(--text-primary); padding: 18px 12px 8px;
  margin-bottom: 6px; position: relative;
}
.nav-section::after {
  content: '';
  position: absolute;
  left: 12px; right: 12px; bottom: 0;
  height: 1px;
  background: var(--border);
}
.nav-section:first-child { padding-top: 6px; }
.nav-item {
  display: block; padding: 8px 12px; border-radius: var(--radius-sm);
  color: var(--text-primary); text-decoration: none; font-size: 16px;
}
.nav-item:hover { background: var(--bg-subtle); text-decoration: none; }
.nav-item.active {
  background: var(--bg-selected); color: var(--blue-primary); font-weight: 500;
}

/* ---- Topbar -------------------------------------------------------------- */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 28px; border-bottom: 1px solid var(--border);
  background: var(--bg-surface);
  position: sticky; top: 0; z-index: 5;
}
.page-title { margin: 0; font-size: 21px; font-weight: 600; }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.icon-btn {
  background: transparent; border: 1px solid var(--border);
  color: var(--text-primary); border-radius: var(--radius-sm);
  padding: 6px 10px; cursor: pointer; font-size: 16px;
}
.icon-btn:hover { background: var(--bg-subtle); }
.theme-icon-light, .theme-icon-dark { display: none; }
[data-theme="light"] .theme-icon-dark, :root:not([data-theme="dark"]) .theme-icon-dark { display: inline; }
[data-theme="dark"] .theme-icon-light { display: inline; }
.user-chip {
  display: flex; align-items: center; gap: 8px;
  color: var(--text-secondary); font-size: 16px;
}
.user-name { color: var(--text-primary); font-weight: 500; }

/* ---- Cards / layout primitives ------------------------------------------ */
.card {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 16px 18px;
  box-shadow: var(--shadow-card);
}
.card + .card { margin-top: 16px; }
.card-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 10px;
}
.card-row {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px; margin-top: 16px;
}
.card-row .card { margin-top: 0; }
@media (max-width: 980px) { .card-row { grid-template-columns: 1fr; } }

.chart-card { min-height: 280px; }
.page > * + * { margin-top: 16px; }

/* ---- KPI grid ------------------------------------------------------------ */
.kpi-grid {
  display: grid; gap: 12px;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}
@media (max-width: 1200px) { .kpi-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 640px)  { .kpi-grid { grid-template-columns: repeat(2, 1fr); } }
.kpi-card {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 12px 14px;
}
.kpi-label { font-size: 14px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: .04em; }
.kpi-value { font-size: 26px; font-weight: 600; color: var(--text-primary); margin-top: 4px; }

/* ---- Alerts ------------------------------------------------------------- */
.alert-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 6px; }
.alert-item {
  padding: 8px 12px; border-radius: var(--radius-sm); border-left: 3px solid var(--border);
  background: var(--bg-subtle); font-size: 16px;
}
.alert-item.alert-warning { border-left-color: var(--status-warning); background: var(--status-warning-bg); color: var(--status-warning-text); }
.alert-item.alert-danger  { border-left-color: var(--status-danger);  background: var(--status-danger-bg);  color: var(--status-danger-text);  }
.alert-item.alert-info    { border-left-color: var(--status-info);    background: var(--status-info-bg);    color: var(--status-info-text);    }
.alert-item.alert-success { border-left-color: var(--status-success); background: var(--status-success-bg); color: var(--status-success-text); }

/* ---- Flash -------------------------------------------------------------- */
.flash {
  padding: 10px 14px; border-radius: var(--radius-sm); margin-bottom: 12px;
  border: 1px solid var(--border); font-size: 16px;
}
.flash-info    { background: var(--status-info-bg);    color: var(--status-info-text);    border-color: var(--status-info); }
.flash-success { background: var(--status-success-bg); color: var(--status-success-text); border-color: var(--status-success); }
.flash-warning { background: var(--status-warning-bg); color: var(--status-warning-text); border-color: var(--status-warning); }
.flash-danger  { background: var(--status-danger-bg);  color: var(--status-danger-text);  border-color: var(--status-danger); }

/* ---- Badges ------------------------------------------------------------- */
.badge {
  display: inline-block; padding: 3px 10px; font-size: 14px; font-weight: 500;
  border-radius: 999px; border: 1px solid transparent; letter-spacing: .02em;
}
.badge-success { background: var(--status-success-bg); color: var(--status-success-text); border-color: var(--status-success); }
.badge-warning { background: var(--status-warning-bg); color: var(--status-warning-text); border-color: var(--status-warning); }
.badge-danger  { background: var(--status-danger-bg);  color: var(--status-danger-text);  border-color: var(--status-danger); }
.badge-info    { background: var(--status-info-bg);    color: var(--status-info-text);    border-color: var(--status-info); }
.badge-neutral { background: var(--bg-subtle);         color: var(--text-secondary);      border-color: var(--border); }

/* ---- Buttons ------------------------------------------------------------ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 16px; border-radius: var(--radius-sm); font-size: 16px;
  font-weight: 500; cursor: pointer; border: 1px solid transparent;
  text-decoration: none; line-height: 1.3;
  transition: background .15s, color .15s, border-color .15s;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--blue-primary); color: #fff; border-color: var(--blue-primary); }
.btn-primary:hover { background: var(--blue-hover); border-color: var(--blue-hover); color: #fff; }
[data-theme="dark"] .btn-primary { color: var(--bg-page); }
.btn-secondary { background: transparent; color: var(--blue-primary); border-color: var(--blue-primary); }
.btn-secondary:hover { background: var(--bg-selected); }
.btn-danger { background: var(--status-danger); color: #fff; border-color: var(--status-danger); }
.btn-danger:hover { background: var(--status-danger-text); color: #fff; }
.btn-ghost { background: transparent; color: var(--text-secondary); border-color: var(--border); }
.btn-ghost:hover { background: var(--bg-subtle); color: var(--text-primary); }
.btn-link { background: transparent; border: none; color: var(--blue-primary); padding: 0; font-size: 16px; }
.btn-link:hover { text-decoration: underline; }
.btn-sm { padding: 5px 12px; font-size: 15px; }
.btn-block { width: 100%; }
.btn[disabled], .btn.disabled { opacity: .55; cursor: not-allowed; }

.toolbar {
  display: flex; justify-content: space-between; align-items: center;
  gap: 12px; margin-bottom: 12px; flex-wrap: wrap;
}
/* When a list page's toolbar contains a filter bar, merge them into a
   single visual container so the "+ New X" action sits inside the same
   surface, aligned to the right and vertically centred with the filter
   inputs' submit button. */
.toolbar:has(> .filter-bar) {
  align-items: flex-end;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  margin-bottom: 14px;
}
.toolbar:has(> .filter-bar) > .filter-bar {
  background: transparent; border: none; padding: 0; margin: 0; border-radius: 0;
}
.toolbar-actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: flex-end; }

/* ---- Forms -------------------------------------------------------------- */
.form { display: flex; flex-direction: column; gap: 14px; }
.form .section-title {
  margin: 20px 0 6px; font-size: 16px; text-transform: uppercase;
  letter-spacing: .06em; color: var(--text-secondary);
  border-top: 1px solid var(--border); padding-top: 16px;
}
.form .section-title:first-of-type { border-top: 0; padding-top: 0; margin-top: 4px; }
.field { display: flex; flex-direction: column; gap: 5px; font-size: 16px; }
.field > span { font-size: 17px; color: var(--text-secondary); font-weight: 500; }
.field-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
input[type="text"], input[type="number"], input[type="email"],
input[type="password"], input[type="tel"], input[type="date"],
input[type="datetime-local"], input[type="search"], select, textarea {
  background: var(--bg-surface); color: var(--text-primary);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 8px 11px; font-size: 16px; font-family: inherit;
  width: 100%;
}
[data-theme="dark"] input, [data-theme="dark"] select, [data-theme="dark"] textarea {
  background: var(--bg-subtle);
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--blue-primary); outline-offset: 0;
  border-color: var(--blue-primary);
}
textarea { min-height: 70px; resize: vertical; }
input::placeholder { color: var(--text-disabled); }
.field-help { font-size: 14px; color: var(--text-secondary); }

/* ---- Tables ------------------------------------------------------------- */
.table {
  width: 100%; border-collapse: collapse; font-size: 16px;
}
.table th, .table td {
  padding: 8px 10px; text-align: left; vertical-align: top;
}
.table thead th {
  background: var(--bg-subtle); color: var(--text-secondary);
  font-weight: 500; font-size: 14px; text-transform: uppercase; letter-spacing: .04em;
  border-bottom: 1px solid var(--border);
}
.table tbody tr { border-bottom: 1px solid var(--border); }
.table tbody tr:nth-child(even) { background: var(--bg-subtle); }
.table tbody tr:hover { background: var(--bg-selected); }
.table .num, .num { text-align: right; font-variant-numeric: tabular-nums; }
.table .actions { width: 1%; white-space: nowrap; }

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

/* ---- Empty state -------------------------------------------------------- */
.empty-state {
  padding: 40px 20px; text-align: center; color: var(--text-secondary);
  border: 1px dashed var(--border); border-radius: var(--radius-md);
}
.empty-state h3 { color: var(--text-primary); }

/* ---- Quick actions (dashboard) ----------------------------------------- */
.quick-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* ---- Auth layout -------------------------------------------------------- */
.auth-body { background: var(--bg-page); }
.auth-shell {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 40px 20px;
}
.auth-card {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 32px; width: 100%; max-width: 380px;
  box-shadow: var(--shadow-card);
}
.auth-card-wide { max-width: 620px; }
.auth-brand { text-align: center; margin-bottom: 18px; }
.auth-brand .brand-mark { font-size: 22px; }

/* ---- Tabs --------------------------------------------------------------- */
.tabs {
  display: flex; gap: 2px; border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}
.tab {
  padding: 10px 16px; color: var(--text-secondary); border-bottom: 2px solid transparent;
  font-size: 16px; text-decoration: none; cursor: pointer;
}
.tab:hover { color: var(--text-primary); text-decoration: none; }
.tab.active { color: var(--blue-primary); border-bottom-color: var(--blue-primary); font-weight: 500; }

/* ---- Detail header ------------------------------------------------------ */
.detail-header {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 20px; margin-bottom: 18px; flex-wrap: wrap;
}
.detail-title h1 { margin-bottom: 4px; }
.detail-meta {
  display: flex; gap: 16px; flex-wrap: wrap; color: var(--text-secondary);
  font-size: 16px;
}
.detail-meta .label { color: var(--text-secondary); }
.detail-meta .value { color: var(--text-primary); font-weight: 500; }

.kv-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px 20px;
}
.kv-grid > div > .label { font-size: 14px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: .04em; }
.kv-grid > div > .value { font-size: 17px; color: var(--text-primary); }

/* ---- Filter bar --------------------------------------------------------- */
.filter-bar {
  background: var(--bg-surface); border: 1px solid var(--border);
  padding: 12px 16px; border-radius: var(--radius-md); margin-bottom: 14px;
  display: flex; gap: 12px; flex-wrap: wrap; align-items: end;
}
.filter-bar .field { min-width: 140px; }
.filter-bar .field > span { font-size: 17px; font-weight: 500; }

/* ---- Print -------------------------------------------------------------- */
@media print {
  .sidebar, .topbar, .btn, .toolbar, .quick-actions, .filter-bar { display: none !important; }
  body { background: #fff; color: #000; }
  .app { display: block; }
  .content { padding: 0; }
  .card { box-shadow: none; border-color: #999; page-break-inside: avoid; }
  .table thead th { background: #eee; color: #000; }
}