/* ============================================================
   TechAssist Staff Portal — brand stylesheet
   Palette: TechAssist Purple #491CB1 + Slate neutral scale.
   Logo gradient (#5836F7->#7019DC) is reserved for the logo symbol only.
   Type: Segoe UI (Arial fallback). Australian spelling.
   ============================================================ */
:root {
  /* Brand purple */
  --purple: #491CB1;
  --purple-dark: #33127A;
  --purple-darker: #1E0A4E;
  --purple-light: #6B3FD4;
  --purple-lighter: #8B5CF6;
  --purple-200: #D4BFFF;
  --purple-100: #E8DEFF;
  --purple-50: #F5F0FF;

  /* Slate neutrals */
  --slate-900: #0F172A;
  --slate-800: #1E293B;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748B;
  --slate-400: #94A3B8;
  --slate-300: #CBD5E1;
  --slate-200: #E2E8F0;
  --slate-100: #F1F5F9;
  --slate-50: #F8FAFC;

  /* Semantic aliases (kept so templates need no changes) */
  --bg: var(--slate-50);
  --card: #ffffff;
  --ink: var(--slate-900);
  --muted: var(--slate-500);
  --line: var(--slate-200);
  --brand: var(--purple);
  --brand-dark: var(--purple-dark);
  --accent: var(--purple-light);

  /* Status (functional) */
  --warn-bg: #FEF3C7;  --warn-ink: #92400E;  --warn-line: #FDE68A;
  --ok-bg: #DCFCE7;    --ok-ink: #166534;    --ok-line: #BBF7D0;
  --bad-bg: #FEE2E2;   --bad-ink: #B91C1C;   --bad-line: #FECACA;

  --radius: 10px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .05);
  --shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 1px 2px rgba(15, 23, 42, .04);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.45;
}
img { max-width: 100%; }
a { color: var(--purple); }
:focus-visible { outline: 2px solid var(--purple); outline-offset: 2px; }
code, kbd, samp, .mono { font-family: Consolas, "SF Mono", Menlo, monospace; font-size: .92em; }

/* Top bar */
.topbar { background: #fff; border-top: 3px solid var(--purple); border-bottom: 1px solid var(--line); box-shadow: var(--shadow-sm); }
.topbar-inner {
  max-width: 1180px; margin: 0 auto; padding: 0 16px;
  display: flex; align-items: center; gap: 18px; min-height: 60px; flex-wrap: wrap;
}
.brand { display: inline-flex; align-items: center; text-decoration: none; line-height: 0; }
.brand-logo { height: 30px; width: auto; display: block; }
.brand-fallback { color: var(--slate-900); text-decoration: none; font-weight: 700; font-size: 17px; }
.brand-fallback span { color: var(--purple); }

.nav-wrap { display: flex; align-items: center; gap: 18px; flex: 1; min-width: 0; }
.mainnav { display: flex; gap: 2px; flex-wrap: wrap; }
.mainnav a {
  color: var(--slate-700); text-decoration: none; padding: 7px 11px; border-radius: 7px;
  font-size: 14px; white-space: nowrap; transition: background .15s, color .15s;
}
.mainnav a:hover { background: var(--purple-50); color: var(--purple); }
.mainnav a.active { background: var(--purple-50); color: var(--purple); font-weight: 600; }
.userbox { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.username { font-size: 13px; color: var(--slate-500); }
.username em { color: var(--slate-400); font-style: normal; }

/* Mobile nav toggle (hamburger) */
.nav-toggle {
  display: none; margin-left: auto; align-items: center; justify-content: center;
  width: 42px; height: 38px; padding: 0; cursor: pointer;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); color: var(--slate-700);
}
.nav-toggle:hover { background: var(--purple-50); border-color: var(--purple-200); color: var(--purple); }
.nav-toggle svg { display: block; }

/* Layout */
.container { max-width: 1180px; margin: 24px auto; padding: 0 16px; }
.footer { text-align: center; color: var(--muted); font-size: 12px; padding: 28px 0 36px; }
h1 { font-size: 22px; margin: 6px 0 16px; font-weight: 700; letter-spacing: -.01em; color: var(--slate-900); }
h2 { font-size: 16px; margin: 0 0 12px; font-weight: 700; color: var(--slate-900); }
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }

/* Cards */
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; margin-bottom: 18px; box-shadow: var(--shadow-sm);
}

/* Balance cards — purple banner gradient (NOT the logo gradient) */
.balance-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin-bottom: 6px; }
.balance-card {
  background: linear-gradient(135deg, var(--purple) 0%, var(--purple-dark) 100%);
  color: #fff; border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow);
}
.balance-name { font-size: 13px; opacity: .9; }
.balance-units { font-size: 34px; font-weight: 700; margin: 4px 0 2px; letter-spacing: -.02em; }
.balance-type { font-size: 12px; opacity: .85; }

/* Forms */
label { display: block; font-size: 13px; color: var(--slate-700); font-weight: 500; }
input, select, textarea {
  display: block; width: 100%; margin-top: 5px; padding: 9px 11px;
  border: 1px solid var(--slate-300); border-radius: var(--radius-sm); font: inherit; color: var(--ink);
  background: #fff; transition: border-color .15s, box-shadow .15s;
}
input::placeholder, textarea::placeholder { color: var(--slate-400); }
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--purple); box-shadow: 0 0 0 3px var(--purple-100);
}
textarea { resize: vertical; }
.form-row { margin-bottom: 14px; }
.form-row-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }
.form-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.inline-form { display: inline-flex; align-items: center; gap: 8px; }
.inline-form.wrap { flex-wrap: wrap; }
.inline-form input, .inline-form select { width: auto; margin-top: 0; }
.input-sm { max-width: 150px; padding: 6px 9px; font-size: 13px; }
.select-wide { min-width: 240px; max-width: 100%; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid transparent; border-radius: var(--radius-sm);
  padding: 9px 15px; font: inherit; font-size: 14px; font-weight: 600; cursor: pointer;
  text-decoration: none; text-align: center; transition: background .15s, border-color .15s, color .15s;
}
.btn-sm { padding: 5px 11px; font-size: 13px; }
.btn-block { display: flex; width: 100%; }
.btn-primary { background: var(--purple); color: #fff; }
.btn-primary:hover { background: var(--purple-dark); }
.btn-secondary { background: #fff; color: var(--purple); border-color: var(--purple-200); }
.btn-secondary:hover { background: var(--purple-50); border-color: var(--purple); }
.btn-danger { background: #fff; color: var(--bad-ink); border-color: var(--bad-line); }
.btn-danger:hover { background: var(--bad-bg); border-color: var(--bad-ink); }
.btn-ghost { background: #fff; color: var(--slate-700); border-color: var(--slate-300); }
.btn-ghost:hover { background: var(--slate-100); color: var(--slate-900); }

/* Tables */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: var(--radius-sm); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 11px; border-bottom: 1px solid var(--line); vertical-align: top; }
thead th { background: var(--slate-50); }
th { font-size: 11.5px; text-transform: uppercase; letter-spacing: .5px; color: var(--slate-500); font-weight: 600; }
tbody tr:hover { background: var(--slate-50); }
.num { text-align: right; }
.desc-cell { max-width: 260px; }
.actions-cell { white-space: nowrap; }
.actions-cell form { margin-bottom: 4px; }
.row-inactive { opacity: .55; }
.kv-table th { width: 260px; text-transform: none; font-size: 14px; color: var(--slate-900); background: transparent; font-weight: 600; }

/* Badges */
.badge {
  display: inline-block; padding: 3px 10px; border-radius: 99px; font-size: 12px; font-weight: 600;
  border: 1px solid transparent; line-height: 1.5;
}
.badge-ok { background: var(--ok-bg); color: var(--ok-ink); border-color: var(--ok-line); }
.badge-warn { background: var(--warn-bg); color: var(--warn-ink); border-color: var(--warn-line); }
.badge-bad { background: var(--bad-bg); color: var(--bad-ink); border-color: var(--bad-line); }
.badge-muted { background: var(--slate-100); color: var(--slate-600); border-color: var(--slate-200); }

/* Tabs */
.tabs { display: flex; gap: 4px; margin-bottom: 14px; flex-wrap: wrap; border-bottom: 1px solid var(--line); }
.tabs a {
  text-decoration: none; color: var(--slate-500); padding: 8px 14px; border-radius: 7px 7px 0 0;
  border: 1px solid transparent; border-bottom: none; font-size: 14px; margin-bottom: -1px;
}
.tabs a:hover { color: var(--purple); background: var(--purple-50); }
.tabs a.active { background: var(--card); border-color: var(--line); color: var(--purple); font-weight: 600; }
.tabs .count { background: var(--slate-100); border-radius: 99px; padding: 1px 8px; font-size: 12px; margin-left: 5px; color: var(--slate-600); }

/* Flash messages */
.flash { padding: 12px 15px; border-radius: var(--radius-sm); margin-bottom: 14px; border: 1px solid; font-size: 14px; }
.flash-success { background: var(--ok-bg); color: var(--ok-ink); border-color: var(--ok-line); }
.flash-error { background: var(--bad-bg); color: var(--bad-ink); border-color: var(--bad-line); }
.flash-warning { background: var(--warn-bg); color: var(--warn-ink); border-color: var(--warn-line); }

/* Timesheets */
.day-card h2 { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.private-note {
  margin-top: 6px; padding: 7px 10px; background: var(--purple-50); border: 1px dashed var(--purple-200);
  border-radius: var(--radius-sm); font-size: 13px; color: var(--slate-700);
}
.inline-check { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: var(--ink); }
.inline-check input { width: auto; margin: 0; }

/* Autocomplete (OSM) */
.autocomplete-wrap { position: relative; }
.autocomplete-list {
  display: none; position: absolute; z-index: 30; left: 0; right: 0; top: 100%;
  background: #fff; border: 1px solid var(--line); border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  max-height: 220px; overflow-y: auto; box-shadow: var(--shadow);
}
.autocomplete-item { padding: 9px 11px; font-size: 13px; cursor: pointer; }
.autocomplete-item:hover { background: var(--purple-50); }

/* Login */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--bg); padding: 16px; }
.login-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  width: 100%; max-width: 400px; padding: 36px 32px; box-shadow: var(--shadow);
  border-top: 3px solid var(--purple);
}
.login-logo { height: 38px; width: auto; display: block; margin: 0 0 20px; }
.login-card h1 { margin: 0 0 2px; font-size: 23px; }
.login-card .accent { color: var(--purple); }
.login-card .muted { margin: 0 0 22px; }
.login-card .btn { margin-top: 4px; }
.local-login { margin-top: 22px; border-top: 1px solid var(--line); padding-top: 18px; }
.local-login summary { color: var(--muted); font-size: 13px; cursor: pointer; }
.local-login form { margin-top: 12px; }
.local-login label { margin-bottom: 12px; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .nav-wrap {
    display: none; flex-basis: 100%; flex-direction: column; align-items: stretch;
    gap: 0; padding: 6px 0 10px;
  }
  .nav-wrap.open { display: flex; }
  .mainnav { flex-direction: column; gap: 0; }
  .mainnav a { padding: 11px 12px; border-radius: var(--radius-sm); font-size: 15px; }
  .userbox {
    margin-left: 0; justify-content: space-between; margin-top: 8px;
    padding-top: 12px; border-top: 1px solid var(--line);
  }
}

@media (max-width: 640px) {
  body { font-size: 15px; }
  .container { margin: 16px auto; padding: 0 13px; }
  .card { padding: 15px; }
  h1 { font-size: 20px; }
  .page-head { align-items: flex-start; }
  .page-head .inline-form { width: 100%; flex-wrap: wrap; }
  .balance-units { font-size: 30px; }
  /* Buttons easier to tap; stretch primary actions on narrow screens */
  .page-head .btn, .form-actions .btn { flex: 1 1 auto; }
  .btn { padding: 10px 15px; }
  th, td { padding: 9px 9px; }
}