/* ============================================================
   FOOTWEAR POS — Base Stylesheet
   ============================================================ */

:root {
  --primary:      #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light:#eff6ff;
  --success:      #16a34a;
  --warning:      #d97706;
  --danger:       #dc2626;
  --info:         #0891b2;
  --dark:         #1e293b;
  --muted:        #64748b;
  --border:       #e2e8f0;
  --bg:           #f8fafc;
  --white:        #ffffff;
  --radius:       8px;
  --shadow:       0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:    0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
}

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

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 15px;
  color: var(--dark);
  background: var(--bg);
  min-height: 100vh;
}

/* ---- NAVBAR ---- */
.navbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--dark);
  color: #fff;
  padding: 0 1.5rem;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}
.navbar-brand {
  display: flex;
  align-items: center;
  white-space: nowrap;
  margin-right: .5rem;
  text-decoration: none;
}
.navbar-logo {
  height: 38px;
  width: auto;
  display: block;
  object-fit: contain;
  background: #fff;
  border-radius: 6px;
  padding: 2px 8px;
}
.brand-icon   { margin-right: .35rem; }
.brand-icon-lg { font-size: 2.5rem; display: block; margin-bottom: .5rem; }
.navbar-menu  { display: flex; gap: .25rem; flex: 1; }
.nav-link {
  color: #cbd5e1;
  text-decoration: none;
  padding: .45rem .75rem;
  border-radius: var(--radius);
  font-size: .9rem;
  transition: background .15s, color .15s;
}
.nav-link:hover, .nav-link.active {
  background: rgba(255,255,255,.12);
  color: #fff;
}
.navbar-user  { display: flex; align-items: center; gap: .6rem; }
.user-name    { color: #e2e8f0; font-size: .9rem; }

/* ---- PWA ---- */
.btn-pwa {
  background: #7c3aed;
  color: #fff;
  border: none;
  font-size: .78rem;
  padding: .3rem .65rem;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  transition: background .15s;
}
.btn-pwa:hover { background: #6d28d9; }
.pwa-offline-badge {
  background: #dc2626;
  color: #fff;
  font-size: .72rem;
  font-weight: 700;
  padding: .2rem .55rem;
  border-radius: 999px;
  letter-spacing: .03em;
  animation: pulse-red 1.8s ease-in-out infinite;
}
@keyframes pulse-red {
  0%, 100% { opacity: 1; }
  50%       { opacity: .55; }
}
.hidden { display: none !important; }

/* ---- BADGES / ROLES ---- */
.badge {
  display: inline-block;
  padding: .2rem .55rem;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.badge-admin      { background: #7c3aed; color: #fff; }
.badge-manager    { background: #0891b2; color: #fff; }
.badge-supervisor { background: #16a34a; color: #fff; }
.badge-cashier    { background: #475569; color: #fff; }

/* ---- MAIN CONTENT ---- */
.main-content {
  padding: 1.5rem;
  max-width: 1600px;
  margin: 0 auto;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}
.page-title { font-size: 1.4rem; font-weight: 700; }
.page-actions { display: flex; gap: .5rem; }

/* ---- CARDS ---- */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.card-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.card-body  { padding: 1.25rem; }
.card-footer {
  padding: .75rem 1.25rem;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .5rem 1rem;
  border: none;
  border-radius: var(--radius);
  font-size: .9rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: opacity .15s, box-shadow .15s;
  white-space: nowrap;
}
.btn:hover       { opacity: .88; }
.btn:active      { opacity: .75; }
.btn-primary     { background: var(--primary);  color: #fff; }
.btn-success     { background: var(--success);  color: #fff; }
.btn-danger      { background: var(--danger);   color: #fff; }
.btn-warning     { background: var(--warning);  color: #fff; }
.btn-secondary   { background: #64748b;          color: #fff; }
.btn-outline {
  background: transparent;
  border: 1px solid rgba(255,255,255,.4);
  color: #fff;
}
.btn-outline-primary {
  background: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
}
.btn-sm  { padding: .3rem .65rem; font-size: .82rem; }
.btn-lg  { padding: .75rem 1.5rem; font-size: 1.05rem; }
.btn-xl  { padding: 1rem 1.75rem; font-size: 1.15rem; font-weight: 700; }
.btn-block { width: 100%; justify-content: center; }

/* ---- FORMS ---- */
.form-group   { margin-bottom: 1rem; }
.form-row     { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
label         { display: block; font-size: .88rem; font-weight: 600; margin-bottom: .35rem; color: var(--muted); }
.form-control {
  display: block;
  width: 100%;
  padding: .5rem .75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: .95rem;
  color: var(--dark);
  background: var(--white);
  transition: border-color .15s, box-shadow .15s;
}
.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
select.form-control { cursor: pointer; }

/* ---- TABLES ---- */
.table-wrapper, .table-responsive { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
}
thead th {
  background: var(--bg);
  padding: .65rem 1rem;
  text-align: left;
  font-weight: 600;
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--muted);
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}
tbody td {
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover         { background: var(--primary-light); }
.text-right { text-align: right; }
.text-center { text-align: center; }

/* ---- ALERTS ---- */
.alert {
  padding: .75rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: .9rem;
  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: #ecfeff; border-color: var(--info);    color: #155e75; }

/* ---- STAT CARDS ---- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.stat-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  box-shadow: var(--shadow);
}
.stat-label { font-size: .78rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; }
.stat-value { font-size: 1.6rem; font-weight: 700; margin-top: .25rem; }
.stat-sub   { font-size: .82rem; color: var(--muted); margin-top: .15rem; }

/* ---- LOGIN PAGE ---- */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--dark);
}
.login-card {
  background: var(--white);
  border-radius: 12px;
  padding: 2.5rem;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-md);
}
.login-logo {
  text-align: center;
  margin-bottom: 2rem;
}
.login-logo h1 { font-size: 1.4rem; font-weight: 700; }
.login-logo p  { color: var(--muted); font-size: .9rem; }
.login-form    { margin-top: 1.5rem; }

/* ---- UTILITIES ---- */
.mt-1 { margin-top: .25rem; }
.mt-2 { margin-top: .5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: .25rem; }
.mb-2 { margin-bottom: .5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.gap-2 { gap: .5rem; }
.gap-3 { gap: 1rem; }
.flex-1 { flex: 1; }
.text-muted    { color: var(--muted); }
.text-danger   { color: var(--danger); }
.text-success  { color: var(--success); }
.text-warning  { color: var(--warning); }
.text-info     { color: var(--info); }
.fw-bold { font-weight: 700; }
.fs-sm  { font-size: .85rem; }
.hidden { display: none !important; }

/* Stock badge */
.stock-ok   { color: var(--success); font-weight: 600; }
.stock-low  { color: var(--warning); font-weight: 600; }
.stock-zero { color: var(--danger);  font-weight: 600; }

/* ============================================================
   NAVBAR COLLAPSE WRAPPER (used for mobile hamburger)
   ============================================================ */
.navbar-collapse {
  display: flex;
  flex: 1;
  align-items: center;
  gap: 1rem;
  overflow: hidden;
}
.navbar-toggle {
  display: none;
  background: transparent;
  border: 1px solid rgba(255,255,255,.25);
  color: #fff;
  font-size: 1.3rem;
  line-height: 1;
  padding: .3rem .55rem;
  border-radius: 6px;
  cursor: pointer;
  margin-left: auto;
  flex-shrink: 0;
  -webkit-tap-highlight-color: transparent;
}

/* ============================================================
   RESPONSIVE — MOBILE (≤ 768px)
   ============================================================ */
@media (max-width: 768px) {

  /* ── Navbar ── */
  .navbar {
    height: 52px;
    padding: 0 .75rem;
    gap: .5rem;
    position: relative;
  }
  .navbar-logo   { height: 30px; }
  .navbar-toggle { display: inline-flex; align-items: center; }

  .navbar-collapse {
    display: none;
    position: fixed;
    top: 52px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--dark);
    max-height: calc(100vh - 52px);
    overflow-y: auto;
    z-index: 500;
    padding: .4rem 0 .75rem;
    box-shadow: 0 8px 24px rgba(0,0,0,.5);
    align-items: stretch;
    gap: 0;
  }
  .navbar.nav-open .navbar-collapse { display: flex; }

  /* Nav links: full width, taller touch target */
  .navbar-menu { flex-direction: column; gap: 0; padding: .4rem .6rem; }
  .nav-link    { padding: .7rem .85rem; font-size: .95rem; border-radius: 6px; }

  /* User section inside dropdown */
  .navbar-user {
    flex-direction: row;
    flex-wrap: wrap;
    gap: .5rem;
    padding: .75rem 1rem;
    border-top: 1px solid rgba(255,255,255,.12);
    align-items: center;
    margin-top: .25rem;
  }
  .user-name { font-size: .88rem; flex: 1; }

  /* ── Main content ── */
  .main-content { padding: .75rem .65rem; }

  /* ── Page header ── */
  .page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: .6rem;
    margin-bottom: .85rem;
  }
  .page-title { font-size: 1.15rem; }
  .page-actions {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
    width: 100%;
  }
  .page-actions .btn {
    flex: 1 1 130px;
    justify-content: center;
    font-size: .82rem;
    padding: .4rem .6rem;
  }

  /* ── Stat grid: 2-column ── */
  .stat-grid { grid-template-columns: repeat(2, 1fr); gap: .6rem; margin-bottom: 1rem; }
  .stat-value { font-size: 1.25rem; }

  /* ── Cards ── */
  .card-header { padding: .65rem .85rem; font-size: .88rem; flex-wrap: wrap; gap: .4rem; }
  .card-body   { padding: .75rem .65rem; }

  /* ── Tables: always scrollable, compact ── */
  .table-wrapper, .table-responsive { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  table    { font-size: .8rem; min-width: 520px; }
  thead th { padding: .45rem .6rem; }
  tbody td { padding: .55rem .6rem; }

  /* ── Forms ── */
  .form-row { grid-template-columns: 1fr; gap: .65rem; }
  .form-control { font-size: .92rem; }

  /* ── Flex rows (search + filter bars) ── */
  .d-flex.gap-2, .d-flex.gap-3, .d-flex[style*="gap"] {
    flex-wrap: wrap !important;
  }

  /* ── Alerts ── */
  .alert { font-size: .85rem; }

  /* ── Login page ── */
  .login-card { padding: 1.5rem 1.25rem; margin: 1rem; max-width: 100%; }

  /* ── Modals (base) ── */
  .modal-box {
    width: 100% !important;
    max-width: 100% !important;
    border-radius: 16px 16px 0 0 !important;
    margin: auto 0 0 !important;
  }
  .modal-overlay { align-items: flex-end !important; }
}