/* ============================================================
   StallMS — Main Stylesheet
   Theme: Industrial Refined · Warm Charcoal + Amber Accent
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=DM+Sans:ital,wght@0,300;0,400;0,500;1,400&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── CSS Variables ───────────────────────────────────────── */
:root {
  --bg:          #0f0e0d;
  --bg2:         #181614;
  --bg3:         #211e1b;
  --border:      #2e2a25;
  --border2:     #3d3830;
  --text:        #e8e0d5;
  --text2:       #9e9185;
  --text3:       #5e564d;
  --amber:       #f5a623;
  --amber-dark:  #c4831a;
  --amber-glow:  rgba(245,166,35,.12);
  --green:       #4caf82;
  --green-bg:    rgba(76,175,130,.1);
  --red:         #e05252;
  --red-bg:      rgba(224,82,82,.1);
  --blue:        #5b9bd5;
  --blue-bg:     rgba(91,155,213,.1);
  --radius:      10px;
  --radius-sm:   6px;
  --shadow:      0 2px 12px rgba(0,0,0,.4);
  --shadow-lg:   0 8px 32px rgba(0,0,0,.5);
  --font:        'DM Sans', system-ui, sans-serif;
  --font-display:'Syne', sans-serif;
  --font-mono:   'JetBrains Mono', monospace;
  --sidebar-w:   240px;
  --topbar-h:    60px;
}

/* ── Reset & Base ────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}
a { color: var(--amber); text-decoration: none; }
a:hover { color: var(--amber-dark); }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; }

/* ── Typography ──────────────────────────────────────────── */
h1,h2,h3,h4,h5,h6 { font-family: var(--font-display); line-height: 1.2; }
h1 { font-size: 2rem; font-weight: 800; }
h2 { font-size: 1.5rem; font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 600; }
h4 { font-size: 1rem; font-weight: 600; }
small { font-size: .8rem; }
code { font-family: var(--font-mono); font-size: .85em;
       background: var(--bg3); padding: 2px 6px; border-radius: 4px; }

/* ── Layout ──────────────────────────────────────────────── */
.layout { display: grid; grid-template-columns: var(--sidebar-w) 1fr; min-height: 100vh; }
.main-content { padding: 32px; overflow-y: auto; }

/* ── Sidebar ─────────────────────────────────────────────── */
.sidebar {
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  height: 100vh; position: sticky; top: 0;
}
.sidebar-logo {
  padding: 24px 20px 20px;
  border-bottom: 1px solid var(--border);
}
.sidebar-logo .logo-mark {
  font-family: var(--font-display);
  font-size: 1.3rem; font-weight: 800;
  color: var(--amber);
  letter-spacing: -.02em;
}
.sidebar-logo .logo-sub {
  font-size: .7rem; color: var(--text3);
  text-transform: uppercase; letter-spacing: .1em;
  margin-top: 2px;
}
.sidebar-nav { flex: 1; padding: 16px 12px; overflow-y: auto; }
.nav-section-label {
  font-size: .65rem; text-transform: uppercase; letter-spacing: .12em;
  color: var(--text3); padding: 12px 8px 6px; font-weight: 600;
}
.nav-link {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 10px; border-radius: var(--radius-sm);
  color: var(--text2); font-size: .9rem; font-weight: 500;
  transition: all .15s; margin-bottom: 2px;
}
.nav-link:hover { background: var(--bg3); color: var(--text); }
.nav-link.active { background: var(--amber-glow); color: var(--amber); }
.nav-link svg { flex-shrink: 0; opacity: .7; }
.nav-link.active svg { opacity: 1; }
.sidebar-footer {
  padding: 16px 12px;
  border-top: 1px solid var(--border);
}
.user-chip {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px; border-radius: var(--radius-sm);
}
.user-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--amber-glow); border: 1px solid var(--amber-dark);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-size: .85rem; color: var(--amber);
  flex-shrink: 0;
}
.user-info .user-name { font-size: .85rem; font-weight: 600; }
.user-info .user-role { font-size: .7rem; color: var(--text3); text-transform: capitalize; }
.logout-btn {
  margin-top: 6px; width: 100%; padding: 7px;
  background: none; border: 1px solid var(--border);
  color: var(--text2); border-radius: var(--radius-sm);
  cursor: pointer; font-size: .82rem; transition: all .15s;
}
.logout-btn:hover { background: var(--red-bg); color: var(--red); border-color: var(--red); }

/* ── Top bar ─────────────────────────────────────────────── */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 28px;
}
.page-title { font-size: 1.6rem; font-weight: 800; }
.page-subtitle { color: var(--text3); font-size: .85rem; margin-top: 2px; }

/* ── Cards ───────────────────────────────────────────────── */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border);
}
.card-title { font-size: 1rem; font-weight: 700; }
.card-body { padding: 20px; }

/* ── Metric Cards ────────────────────────────────────────── */
.metrics-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px,1fr)); gap: 16px; }
.metric-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 20px 16px;
  position: relative; overflow: hidden;
}
.metric-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
}
.metric-card.amber::before { background: var(--amber); }
.metric-card.green::before { background: var(--green); }
.metric-card.red::before   { background: var(--red); }
.metric-card.blue::before  { background: var(--blue); }
.metric-label { font-size: .75rem; text-transform: uppercase; letter-spacing: .1em; color: var(--text3); }
.metric-value { font-family: var(--font-display); font-size: 1.8rem; font-weight: 800; margin: 6px 0 2px; }
.metric-sub   { font-size: .78rem; color: var(--text2); }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 18px; border-radius: var(--radius-sm);
  font-size: .875rem; font-weight: 600; cursor: pointer;
  border: 1px solid transparent; transition: all .15s; white-space: nowrap;
}
.btn-primary   { background: var(--amber); color: #0f0e0d; border-color: var(--amber); }
.btn-primary:hover { background: var(--amber-dark); border-color: var(--amber-dark); color: #fff; }
.btn-secondary { background: var(--bg3); color: var(--text); border-color: var(--border2); }
.btn-secondary:hover { background: var(--border); }
.btn-success   { background: var(--green-bg); color: var(--green); border-color: var(--green); }
.btn-danger    { background: var(--red-bg);   color: var(--red);   border-color: var(--red); }
.btn-ghost     { background: transparent; color: var(--text2); border-color: var(--border); }
.btn-ghost:hover { background: var(--bg3); color: var(--text); }
.btn-sm        { padding: 5px 12px; font-size: .8rem; }
.btn-xs        { padding: 3px 9px;  font-size: .75rem; }
.btn-icon      { padding: 7px; }
.btn:disabled  { opacity: .45; cursor: not-allowed; }

/* ── Form elements ───────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: .82rem; font-weight: 600;
              color: var(--text2); margin-bottom: 6px; text-transform: uppercase; letter-spacing: .06em; }
.form-control {
  width: 100%; padding: 10px 14px;
  background: var(--bg3); border: 1px solid var(--border2);
  border-radius: var(--radius-sm); color: var(--text);
  transition: border-color .15s;
}
.form-control:focus { outline: none; border-color: var(--amber); }
.form-control::placeholder { color: var(--text3); }
select.form-control { cursor: pointer; }
.form-hint  { font-size: .78rem; color: var(--text3); margin-top: 4px; }
.form-error { font-size: .78rem; color: var(--red); margin-top: 4px; }
.input-group { display: flex; }
.input-group .form-control { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.input-group .btn { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; border-left: none; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ── Tables ──────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .875rem; }
thead th {
  text-align: left; padding: 10px 14px;
  font-size: .7rem; text-transform: uppercase; letter-spacing: .1em;
  color: var(--text3); border-bottom: 1px solid var(--border);
}
tbody tr { border-bottom: 1px solid var(--border); transition: background .1s; }
tbody tr:hover { background: var(--bg3); }
tbody td { padding: 11px 14px; color: var(--text2); }
tbody td strong { color: var(--text); font-weight: 600; }
tbody tr:last-child { border-bottom: none; }

/* ── Badges ──────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 9px; border-radius: 99px; font-size: .72rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: .06em;
}
.badge-green  { background: var(--green-bg); color: var(--green); }
.badge-red    { background: var(--red-bg);   color: var(--red); }
.badge-amber  { background: var(--amber-glow); color: var(--amber); }
.badge-blue   { background: var(--blue-bg);  color: var(--blue); }
.badge-gray   { background: var(--bg3);      color: var(--text3); }
.dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; display: inline-block; }

/* ── Alerts ──────────────────────────────────────────────── */
.alert {
  padding: 12px 16px; border-radius: var(--radius-sm);
  font-size: .875rem; margin-bottom: 16px; border-left: 3px solid;
}
.alert-success { background: var(--green-bg); color: var(--green); border-color: var(--green); }
.alert-error   { background: var(--red-bg);   color: var(--red);   border-color: var(--red); }
.alert-info    { background: var(--blue-bg);  color: var(--blue);  border-color: var(--blue); }
.alert-warning { background: var(--amber-glow); color: var(--amber); border-color: var(--amber); }

/* ── Modal ───────────────────────────────────────────────── */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.7);
  backdrop-filter: blur(4px); z-index: 100;
  display: none; align-items: center; justify-content: center;
}
.modal-backdrop.open { display: flex; }
.modal {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); width: 500px; max-width: 95vw;
  max-height: 90vh; overflow-y: auto; box-shadow: var(--shadow-lg);
  animation: slideUp .2s ease;
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 20px; border-bottom: 1px solid var(--border);
}
.modal-title { font-weight: 700; font-family: var(--font-display); }
.modal-close { background: none; border: none; color: var(--text3); cursor: pointer; font-size: 1.2rem; line-height: 1; }
.modal-close:hover { color: var(--text); }
.modal-body   { padding: 20px; }
.modal-footer { padding: 16px 20px; border-top: 1px solid var(--border); display: flex; gap: 10px; justify-content: flex-end; }

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

/* ── Grid Layouts ────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
.grid-sidebar { display: grid; grid-template-columns: 1fr 340px; gap: 24px; align-items: start; }

/* ── Auth pages ──────────────────────────────────────────── */
.auth-page {
  min-height: 100vh; background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  background-image: radial-gradient(circle at 20% 50%, rgba(245,166,35,.06) 0%, transparent 50%),
                    radial-gradient(circle at 80% 20%, rgba(76,175,130,.04) 0%, transparent 40%);
}
.auth-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 40px 36px;
  width: 420px; max-width: 95vw; box-shadow: var(--shadow-lg);
}
.auth-logo { text-align: center; margin-bottom: 32px; }
.auth-logo .logo { font-family: var(--font-display); font-size: 2rem; font-weight: 800; color: var(--amber); }
.auth-logo .tagline { font-size: .82rem; color: var(--text3); margin-top: 4px; }
.auth-footer { text-align: center; margin-top: 20px; font-size: .85rem; color: var(--text3); }

/* ── Basket POS styles ───────────────────────────────────── */
.pos-grid { display: grid; grid-template-columns: 1fr 380px; gap: 0; min-height: calc(100vh - 60px); }
.pos-products { padding: 20px; overflow-y: auto; }
.pos-sidebar  { background: var(--bg2); border-left: 1px solid var(--border); padding: 20px; display: flex; flex-direction: column; }
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px,1fr)); gap: 12px; }
.product-tile {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px; cursor: pointer;
  transition: all .15s; text-align: left;
}
.product-tile:hover { border-color: var(--amber); background: var(--amber-glow); }
.product-tile .p-name { font-weight: 600; font-size: .9rem; margin-bottom: 4px; }
.product-tile .p-cat  { font-size: .72rem; color: var(--text3); text-transform: uppercase; letter-spacing: .08em; }
.product-tile .p-price{ font-family: var(--font-mono); color: var(--amber); font-size: 1rem; font-weight: 500; margin-top: 8px; }
.product-tile .p-stock { font-size: .75rem; color: var(--text3); }
.product-tile.out-of-stock { opacity: .4; cursor: not-allowed; }
.basket-items-list { flex: 1; overflow-y: auto; margin: 0 -4px; }
.basket-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px; border-radius: var(--radius-sm);
  border-bottom: 1px solid var(--border);
}
.basket-item .bi-name { flex: 1; font-size: .875rem; font-weight: 600; }
.basket-item .bi-qty  { font-family: var(--font-mono); font-size: .82rem; color: var(--text2); }
.basket-item .bi-price{ font-family: var(--font-mono); font-size: .9rem; color: var(--amber); min-width: 70px; text-align: right; }
.basket-item .bi-del  { background: none; border: none; color: var(--text3); cursor: pointer; padding: 2px 5px; font-size: 1rem; }
.basket-item .bi-del:hover { color: var(--red); }
.basket-total { border-top: 1px solid var(--border2); padding-top: 14px; margin-top: 14px; }
.total-row { display: flex; justify-content: space-between; margin-bottom: 6px; font-size: .875rem; }
.total-row.grand { font-weight: 700; font-size: 1.1rem; font-family: var(--font-display); color: var(--amber); }

/* ── Summary Report ──────────────────────────────────────── */
.report-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; margin-bottom: 24px; }
.report-stat {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px; text-align: center;
}
.report-stat .rs-value { font-family: var(--font-display); font-size: 2rem; font-weight: 800; color: var(--amber); }
.report-stat .rs-label { font-size: .78rem; color: var(--text3); text-transform: uppercase; letter-spacing: .1em; margin-top: 4px; }

/* ── Utility classes ─────────────────────────────────────── */
.flex      { display: flex; }
.flex-col  { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.mb-1 { margin-bottom: 6px; }
.mb-2 { margin-bottom: 12px; }
.mb-3 { margin-bottom: 20px; }
.mb-4 { margin-bottom: 28px; }
.mt-2 { margin-top: 12px; }
.mt-3 { margin-top: 20px; }
.text-right { text-align: right; }
.text-center{ text-align: center; }
.text-muted { color: var(--text3); }
.text-amber { color: var(--amber); }
.text-green { color: var(--green); }
.text-red   { color: var(--red); }
.text-sm    { font-size: .85rem; }
.text-xs    { font-size: .75rem; }
.font-mono  { font-family: var(--font-mono); }
.font-bold  { font-weight: 700; }
.w-full     { width: 100%; }
.hidden     { display: none; }
.divider    { border: none; border-top: 1px solid var(--border); margin: 16px 0; }
.spinner    { border: 2px solid var(--border2); border-top-color: var(--amber); border-radius: 50%; width: 20px; height: 20px; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.empty-state { text-align: center; padding: 48px 24px; color: var(--text3); }
.empty-state svg { opacity: .25; margin: 0 auto 12px; display: block; }

/* ── Scrollbar ───────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text3); }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .form-row { grid-template-columns: 1fr; }
  .grid-2, .grid-3, .grid-sidebar { grid-template-columns: 1fr; }
  .main-content { padding: 16px; }
  .pos-grid { grid-template-columns: 1fr; }
  .pos-sidebar { border-left: none; border-top: 1px solid var(--border); }
  .report-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .metrics-grid { grid-template-columns: 1fr 1fr; }
  .report-grid  { grid-template-columns: 1fr; }
}