:root {
  /* Preserved names (referenced inline across templates) — values updated for the dark theme */
  --tea-green: #4fbf72;
  --tea-green-dark: #eaf7ee;      /* used inline for "good" text on dark cards — now a light, high-contrast tone */
  --tea-green-light: rgba(79, 191, 114, 0.14);
  --accent: #3ddc84;
  --accent-2: #2dd4bf;
  --bg: #0a0e0d;
  --bg-elevated: #0f1512;
  --card: #131a17;
  --card-hover: #182019;
  --text: #eef3ef;
  --muted: #8ea095;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --danger: #ff6b6b;
  --success: #3ddc84;
  --warning: #f2b84b;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.38);
  --shadow-glow: 0 0 0 1px rgba(61, 220, 132, 0.15), 0 8px 24px rgba(61, 220, 132, 0.08);
  --transition: 180ms cubic-bezier(0.4, 0, 0.2, 1);
  --sidebar-width: 240px;
}

* { box-sizing: border-box; }

html { scrollbar-color: #2a352e var(--bg); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #2a352e; border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: #38473d; }

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  background:
    radial-gradient(1200px 600px at 100% -10%, rgba(61, 220, 132, 0.06), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(45, 212, 191, 0.05), transparent 60%),
    var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--tea-green); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-2); text-decoration: underline; }

.layout { display: flex; min-height: 100vh; }

/* ---------- Sidebar ---------- */

.sidebar {
  width: var(--sidebar-width);
  background: linear-gradient(180deg, #0c1210 0%, #0a0e0d 100%);
  border-right: 1px solid var(--border);
  color: #fff;
  padding: 22px 0;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 20;
}

.sidebar .brand {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  padding: 0 20px 18px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  flex-shrink: 0;
  object-fit: contain;
  background: #0a0e0d;
}

.auth-card .logo-mark { width: 48px; height: 48px; border-radius: 12px; }

.sidebar .brand .brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.sidebar .brand span { display: block; font-size: 0.68rem; font-weight: 500; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; margin-top: 2px; }

.sidebar nav { display: flex; flex-direction: column; gap: 2px; padding: 0 12px; }

.sidebar nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
  position: relative;
}

.sidebar nav a .nav-icon { font-size: 1rem; width: 18px; text-align: center; flex-shrink: 0; }

.sidebar nav a:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  text-decoration: none;
}

.sidebar nav a.active {
  background: linear-gradient(90deg, rgba(61, 220, 132, 0.16), rgba(61, 220, 132, 0.04));
  color: #fff;
}

.sidebar nav a.active::before {
  content: "";
  position: absolute;
  left: -12px;
  top: 8px;
  bottom: 8px;
  width: 3px;
  border-radius: 999px;
  background: var(--tea-green);
}

.sidebar-footer {
  margin-top: auto;
  padding: 16px 20px;
  border-top: 1px solid var(--border);
}

.sidebar-footer .signed-in { color: var(--muted); font-size: 0.78rem; margin-bottom: 10px; display: flex; align-items: center; gap: 6px; }
.sidebar-footer .signed-in .dot { width: 7px; height: 7px; border-radius: 999px; background: var(--success); box-shadow: 0 0 8px var(--success); flex-shrink: 0; }

.nav-toggle {
  display: none;
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 30;
  background: var(--card);
  border: 1px solid var(--border-strong);
  color: var(--text);
  width: 40px;
  height: 40px;
  border-radius: 10px;
  font-size: 1.1rem;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

/* ---------- Main content ---------- */

.main {
  flex: 1;
  min-width: 0;
  padding: 28px 36px 48px;
  max-width: 1320px;
  animation: fadeInUp 320ms ease both;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 22px;
  flex-wrap: wrap;
  gap: 12px;
}

.page-header h1 { margin: 0; font-size: 1.6rem; font-weight: 700; letter-spacing: -0.01em; }
.page-header p.subtitle { margin: 5px 0 0; color: var(--muted); font-size: 0.9rem; }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, var(--tea-green), var(--accent-2));
  color: #06140c;
  border: none;
  padding: 10px 18px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 700;
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
  box-shadow: 0 4px 14px rgba(61, 220, 132, 0.18);
}
.btn:hover { filter: brightness(1.08); text-decoration: none; color: #06140c; transform: translateY(-1px); box-shadow: 0 8px 20px rgba(61, 220, 132, 0.26); }
.btn:active { transform: translateY(0); }

.btn-secondary {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border-strong);
  box-shadow: none;
}
.btn-secondary:hover { background: var(--card-hover); color: #fff; border-color: rgba(61, 220, 132, 0.35); box-shadow: var(--shadow-sm); }

.btn-danger { background: linear-gradient(135deg, #ff6b6b, #e04b4b); color: #fff; box-shadow: 0 4px 14px rgba(255, 107, 107, 0.18); }
.btn-danger:hover { color: #fff; filter: brightness(1.08); }

.btn-sm { padding: 6px 12px; font-size: 0.78rem; }

/* ---------- Cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

.card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(61, 220, 132, 0.05), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}

.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.card:hover::after { opacity: 1; }

.card .stat { font-size: 1.9rem; font-weight: 800; color: var(--text); letter-spacing: -0.02em; position: relative; }
.card .label { color: var(--muted); font-size: 0.82rem; margin-top: 6px; position: relative; }

/* ---------- Panels ---------- */

.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  margin-bottom: 20px;
  overflow-x: auto;
  box-shadow: var(--shadow-sm);
}

.panel h2 { margin-top: 0; font-size: 1.02rem; font-weight: 700; }

.chart-panel canvas { max-height: 280px; }

/* ---------- Tables ---------- */

table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }

th, td { text-align: left; padding: 11px 12px; border-bottom: 1px solid var(--border); white-space: nowrap; }

th { color: var(--muted); font-weight: 600; font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.05em; }

tbody tr { transition: background var(--transition); }
tr:hover td { background: rgba(255, 255, 255, 0.025); }

/* ---------- Badges ---------- */

.badge {
  display: inline-block;
  padding: 3px 11px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 700;
  border: 1px solid transparent;
}
.badge-present { background: rgba(61, 220, 132, 0.12); color: var(--success); border-color: rgba(61, 220, 132, 0.25); }
.badge-absent { background: rgba(255, 107, 107, 0.12); color: var(--danger); border-color: rgba(255, 107, 107, 0.25); }
.badge-leave, .badge-sick-leave { background: rgba(242, 184, 75, 0.12); color: var(--warning); border-color: rgba(242, 184, 75, 0.25); }
.badge-half-day { background: rgba(93, 156, 236, 0.12); color: #7fb0f2; border-color: rgba(93, 156, 236, 0.25); }
.badge-pending { background: rgba(255, 255, 255, 0.06); color: var(--muted); border-color: var(--border); }
.badge-in-progress { background: rgba(242, 184, 75, 0.12); color: var(--warning); border-color: rgba(242, 184, 75, 0.25); }
.badge-completed { background: rgba(61, 220, 132, 0.12); color: var(--success); border-color: rgba(61, 220, 132, 0.25); }

/* ---------- Search / forms ---------- */

.search-bar { margin-bottom: 16px; display: flex; gap: 8px; flex-wrap: wrap; }
.search-bar input, .search-bar select {
  padding: 9px 11px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  font-size: 0.88rem;
  background: var(--bg-elevated);
  color: var(--text);
}

form.stack { display: flex; flex-direction: column; gap: 16px; max-width: 760px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.field label { display: block; font-size: 0.8rem; font-weight: 600; color: var(--muted); margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 10px 11px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  font-size: 0.88rem;
  font-family: inherit;
  background: var(--bg-elevated);
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.field input:focus, .field select:focus, .field textarea:focus,
.search-bar input:focus, .search-bar select:focus {
  outline: none;
  border-color: var(--tea-green);
  box-shadow: 0 0 0 3px rgba(61, 220, 132, 0.15);
}
.field-section h3 { font-size: 0.92rem; color: var(--text); margin: 0 0 10px; border-bottom: 2px solid var(--border); padding-bottom: 8px; }

/* ---------- Flash messages ---------- */

.flash {
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 16px;
  font-size: 0.88rem;
  border: 1px solid transparent;
  animation: slideIn 220ms ease both;
}
@keyframes slideIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}
.flash-success { background: rgba(61, 220, 132, 0.1); color: var(--success); border-color: rgba(61, 220, 132, 0.25); }
.flash-error { background: rgba(255, 107, 107, 0.1); color: var(--danger); border-color: rgba(255, 107, 107, 0.25); }

.empty-state { color: var(--muted); padding: 28px; text-align: center; }

.actions-row { display: flex; gap: 8px; }
.actions-row form { display: inline; }

/* ---------- Auth pages (login / setup) ---------- */

.auth-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  max-width: 380px;
  width: 100%;
  box-shadow: var(--shadow-md);
}
.auth-card h1 { font-size: 1.3rem; margin: 0 0 4px; font-weight: 800; }
.auth-card p.sub { color: var(--muted); margin: 0 0 20px; font-size: 0.9rem; }
.auth-card form { display: flex; flex-direction: column; gap: 14px; }
.auth-card label { font-size: 0.82rem; font-weight: 600; color: var(--muted); margin-bottom: 5px; display: block; }
.auth-card input {
  width: 100%;
  padding: 10px 11px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  font-size: 0.9rem;
  background: var(--bg-elevated);
  color: var(--text);
}
.auth-card input:focus { outline: none; border-color: var(--tea-green); box-shadow: 0 0 0 3px rgba(61, 220, 132, 0.15); }
.auth-card .btn { width: 100%; justify-content: center; }

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }

  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    transform: translateX(-100%);
    transition: transform var(--transition);
    box-shadow: var(--shadow-md);
  }

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

  .main { padding: 76px 18px 40px; max-width: 100%; }

  .page-header { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 560px) {
  .cards { grid-template-columns: 1fr 1fr; }
  .card .stat { font-size: 1.5rem; }
}