/* assets/css/app.css — PayrollPro */
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

/* ── Variables ─────────────────────────────────────────── */
:root {
  --navy:       #0d1b2a;
  --navy-light: #1a2d44;
  --navy-mid:   #243b55;
  --white:      #ffffff;
  --off-white:  #f4f6f9;
  --border:     #dde3ea;
  --muted:      #8496a9;
  --accent:     #2563eb;
  --accent-dim: #1e4fc0;
  --danger:     #dc2626;
  --success:    #16a34a;
  --warning:    #d97706;
  --text:       #1a2534;
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08);
  --shadow-md:  0 4px 16px rgba(0,0,0,.10);
  --radius:     6px;
  --sidebar-w:  240px;
  --font:       'IBM Plex Sans', sans-serif;
  --font-mono:  'IBM Plex Mono', monospace;
}

/* ── Reset ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font); color: var(--text); background: var(--off-white); line-height: 1.6; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }

/* ── Login ──────────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--navy);
  background-image: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 40px,
    rgba(255,255,255,.015) 40px,
    rgba(255,255,255,.015) 80px
  );
}
.login-card {
  background: var(--white);
  border-radius: 10px;
  width: 100%;
  max-width: 400px;
  padding: 2.5rem 2rem;
  box-shadow: 0 20px 60px rgba(0,0,0,.35);
}
.login-logo {
  text-align: center;
  margin-bottom: 2rem;
}
.login-logo .wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: .3rem;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -.5px;
}
.login-logo .wordmark span { color: var(--accent); }
.login-logo p {
  font-size: .8rem;
  color: var(--muted);
  margin-top: .25rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ── Shell ──────────────────────────────────────────────── */
.shell { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
  width: var(--sidebar-w);
  background: var(--navy);
  color: var(--white);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform .25s ease;
}
.sidebar-brand {
  padding: 1.4rem 1.4rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.sidebar-brand .wordmark {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -.4px;
}
.sidebar-brand .wordmark span { color: var(--accent); }
.sidebar-brand .tagline {
  font-size: .7rem;
  color: rgba(255,255,255,.4);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: .1rem;
}
.sidebar-nav { flex: 1; padding: 1rem 0; overflow-y: auto; }
.nav-section {
  font-size: .65rem;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: rgba(255,255,255,.35);
  padding: .8rem 1.4rem .3rem;
  margin-top: .5rem;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .6rem 1.4rem;
  font-size: .875rem;
  color: rgba(255,255,255,.7);
  border-left: 3px solid transparent;
  transition: background .15s, color .15s, border-color .15s;
}
.nav-link svg { width: 16px; height: 16px; flex-shrink: 0; opacity: .75; }
.nav-link:hover, .nav-link.active {
  background: rgba(255,255,255,.07);
  color: var(--white);
  border-left-color: var(--accent);
}
.nav-link.active svg { opacity: 1; }
.sidebar-footer {
  padding: 1rem 1.4rem;
  border-top: 1px solid rgba(255,255,255,.08);
  font-size: .8rem;
  color: rgba(255,255,255,.5);
}
.sidebar-footer a { color: rgba(255,255,255,.65); }
.sidebar-footer a:hover { color: var(--white); }

/* Main content */
.main-wrap {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
.topbar {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 0 1.75rem;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 90;
  box-shadow: var(--shadow-sm);
}
.topbar-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--navy);
}
.topbar-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.topbar-user {
  font-size: .8rem;
  color: var(--muted);
}
.topbar-user strong { color: var(--text); }
.page-content { padding: 1.75rem; flex: 1; }

/* ── Cards ──────────────────────────────────────────────── */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.card-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.card-title {
  font-size: .9rem;
  font-weight: 600;
  color: var(--navy);
}
.card-body { padding: 1.25rem; }

/* Stat cards */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}
.stat-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.4rem;
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent);
}
.stat-card .stat-label {
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--muted);
  margin-bottom: .4rem;
}
.stat-card .stat-val {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
}
.stat-card .stat-sub {
  font-size: .75rem;
  color: var(--muted);
  margin-top: .3rem;
}

/* ── Tables ─────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .85rem;
}
.data-table thead th {
  background: var(--navy);
  color: rgba(255,255,255,.85);
  font-weight: 500;
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .8px;
  padding: .7rem 1rem;
  text-align: left;
  white-space: nowrap;
}
.data-table tbody tr { border-bottom: 1px solid var(--border); transition: background .1s; }
.data-table tbody tr:hover { background: #f0f4ff; }
.data-table tbody td { padding: .65rem 1rem; vertical-align: middle; }
.data-table tfoot td {
  padding: .65rem 1rem;
  font-weight: 600;
  border-top: 2px solid var(--border);
  background: var(--off-white);
}

/* ── Badges ─────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: .2em .6em;
  border-radius: 4px;
  font-size: .72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.badge-success  { background:#dcfce7; color:var(--success); }
.badge-danger   { background:#fee2e2; color:var(--danger); }
.badge-warning  { background:#fef9c3; color:var(--warning); }
.badge-info     { background:#dbeafe; color:var(--accent); }
.badge-neutral  { background:#f1f5f9; color:var(--muted); }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .5rem 1rem;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: .85rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background .15s, box-shadow .15s, border-color .15s;
  white-space: nowrap;
  text-decoration: none;
}
.btn svg { width: 15px; height: 15px; }
.btn-primary  { background: var(--accent); color: var(--white); border-color: var(--accent); }
.btn-primary:hover  { background: var(--accent-dim); border-color: var(--accent-dim); }
.btn-navy    { background: var(--navy); color: var(--white); border-color: var(--navy); }
.btn-navy:hover { background: var(--navy-light); }
.btn-outline  { background: transparent; color: var(--text); border-color: var(--border); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger   { background: var(--danger); color: var(--white); }
.btn-danger:hover { opacity: .85; }
.btn-sm { padding: .35rem .75rem; font-size: .8rem; }
.btn-xs { padding: .2rem .55rem; font-size: .75rem; }

/* ── Forms ──────────────────────────────────────────────── */
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: .35rem; }
.form-group.full { grid-column: 1 / -1; }
label { font-size: .8rem; font-weight: 500; color: var(--navy); }
label .req { color: var(--danger); margin-left: 2px; }
.form-control {
  padding: .5rem .75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: .875rem;
  color: var(--text);
  background: var(--white);
  transition: border-color .15s, box-shadow .15s;
  width: 100%;
}
.form-control:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(37,99,235,.1); }
select.form-control { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238496a9' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right .75rem center; padding-right: 2rem; }
.form-hint { font-size: .75rem; color: var(--muted); }
.form-actions { margin-top: 1.5rem; display: flex; gap: .75rem; align-items: center; }

/* ── Alerts / Flash ─────────────────────────────────────── */
.alert {
  padding: .8rem 1rem;
  border-radius: var(--radius);
  font-size: .875rem;
  margin-bottom: 1.25rem;
  border-left: 4px solid;
}
.alert-success { background:#f0fdf4; border-color:var(--success); color:#166534; }
.alert-danger  { background:#fef2f2; border-color:var(--danger);  color:#991b1b; }
.alert-warning { background:#fffbeb; border-color:var(--warning); color:#92400e; }
.alert-info    { background:#eff6ff; border-color:var(--accent);  color:#1e40af; }

/* ── Page header ─────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  gap: 1rem;
  flex-wrap: wrap;
}
.page-header h1 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.2;
}
.page-header p { font-size: .85rem; color: var(--muted); margin-top: .2rem; }

/* ── Upload drop zone ───────────────────────────────────── */
.drop-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: border-color .2s, background .2s;
  background: var(--off-white);
}
.drop-zone:hover, .drop-zone.over {
  border-color: var(--accent);
  background: #eff6ff;
}
.drop-zone .dz-icon { font-size: 2.5rem; opacity: .4; margin-bottom: .75rem; }
.drop-zone p { color: var(--muted); font-size: .875rem; }
.drop-zone strong { color: var(--accent); }

/* ── Payslip print view ─────────────────────────────────── */
@media print {
  .sidebar, .topbar, .no-print { display: none !important; }
  .main-wrap { margin-left: 0; }
  .payslip { box-shadow: none; border: 1px solid #ccc; }
}
.payslip {
  max-width: 78mm;
  margin: 0 auto;
  font-family: var(--font-mono);
  font-size: .7rem;
  background: white;
  padding: 1rem;
  border: 1px solid var(--border);
  line-height: 1.5;
}
.payslip-title { text-align: center; font-weight: 700; font-size: .85rem; margin-bottom: .5rem; }
.payslip-divider { border: none; border-top: 1px dashed #999; margin: .4rem 0; }
.payslip-row { display: flex; justify-content: space-between; }
.payslip-row.total { font-weight: 700; border-top: 1px solid #999; margin-top: .2rem; padding-top: .2rem; }

/* ── Utilities ───────────────────────────────────────────── */
.mt-1 { margin-top: .5rem; } .mt-2 { margin-top: 1rem; } .mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: .5rem; } .mb-2 { margin-bottom: 1rem; } .mb-3 { margin-bottom: 1.5rem; }
.flex { display: flex; } .items-center { align-items: center; } .gap-1 { gap: .5rem; }
.text-right { text-align: right; } .text-center { text-align: center; }
.text-muted { color: var(--muted); } .text-danger { color: var(--danger); } .text-success { color: var(--success); }
.font-mono { font-family: var(--font-mono); }
.w-full { width: 100%; }
.hidden { display: none; }
.sr-only { position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0; }

/* ── Responsive ─────────────────────────────────────────── */
.menu-toggle { display: none; background: none; border: none; cursor: pointer; padding: .4rem; }
@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-wrap { margin-left: 0; }
  .menu-toggle { display: flex; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
  .stat-grid { grid-template-columns: 1fr; }
  .page-content { padding: 1rem; }
  .form-grid { grid-template-columns: 1fr; }
}