/* ============================================================
   RestroTrack — app.css
   Design: Refined dark-mode with amber accents, utility-focused
   ============================================================ */

:root {
  --bg-base:      #0d1117;
  --bg-surface:   #161b22;
  --bg-elevated:  #1c2128;
  --bg-hover:     #21262d;
  --border:       #30363d;
  --border-light: #21262d;

  --text-primary:   #e6edf3;
  --text-secondary: #8b949e;
  --text-muted:     #484f58;

  --accent:       #f0a500;
  --accent-dim:   rgba(240,165,0,.15);
  --accent-hover: #ffb700;

  --success:      #2ea043;
  --success-dim:  rgba(46,160,67,.15);
  --danger:       #da3633;
  --danger-dim:   rgba(218,54,51,.15);
  --warning:      #d29922;
  --warning-dim:  rgba(210,153,34,.15);
  --info:         #388bfd;
  --info-dim:     rgba(56,139,253,.15);

  --sidebar-w: 240px;
  --topbar-h:  60px;
  --radius:    8px;
  --radius-lg: 14px;
  --shadow:    0 4px 24px rgba(0,0,0,.4);
  --font:      'Plus Jakarta Sans', sans-serif;
  --mono:      'JetBrains Mono', monospace;
  --transition: .18s ease;
}

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

body {
  font-family: var(--font);
  background: var(--bg-base);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.6;
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Sidebar ─────────────────────────────────────────────── */
.sidebar {
  position: fixed; left: 0; top: 0; bottom: 0;
  width: var(--sidebar-w);
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  z-index: 100;
  transition: width var(--transition), transform var(--transition);
  overflow: hidden;
}
.sidebar.collapsed { width: 62px; }
.sidebar.collapsed .brand-text,
.sidebar.collapsed .nav-section-label,
.sidebar.collapsed .nav-item span:last-child,
.sidebar.collapsed .user-details { display: none; }
.sidebar.collapsed .sidebar-brand { padding: 20px 14px; }
.sidebar.collapsed .nav-item { padding: 12px 18px; justify-content: center; }
.sidebar.collapsed .nav-icon { margin: 0; }
.sidebar.collapsed .sidebar-footer { padding: 12px; flex-direction: column; gap: 8px; }

.sidebar-brand {
  display: flex; align-items: center; gap: 10px;
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border);
}
.brand-icon { font-size: 26px; line-height: 1; }
.brand-name { font-weight: 800; font-size: 15px; color: var(--accent); display: block; }
.brand-sub  { font-size: 10px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .06em; }

.sidebar-nav {
  flex: 1; overflow-y: auto; padding: 12px 10px;
  scrollbar-width: thin; scrollbar-color: var(--border) transparent;
}
.nav-section-label {
  font-size: 10px; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: var(--text-muted);
  padding: 12px 10px 4px;
}
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: var(--radius);
  color: var(--text-secondary); text-decoration: none;
  font-weight: 500; font-size: 13.5px;
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
}
.nav-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-item.active { background: var(--accent-dim); color: var(--accent); font-weight: 600; }
.nav-icon { font-size: 15px; min-width: 18px; text-align: center; }

.sidebar-footer {
  padding: 14px 16px; border-top: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px;
}
.user-info { display: flex; align-items: center; gap: 10px; flex: 1; min-width: 0; }
.user-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--accent-dim); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 13px; flex-shrink: 0;
}
.user-details { min-width: 0; }
.user-name { font-size: 13px; font-weight: 600; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.badge-admin   { color: var(--danger); }
.badge-manager { color: var(--accent); }
.badge-staff   { color: var(--info); }
.btn-logout {
  width: 32px; height: 32px; border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); text-decoration: none; font-size: 16px;
  transition: background var(--transition), color var(--transition);
  flex-shrink: 0;
}
.btn-logout:hover { background: var(--danger-dim); color: var(--danger); }

/* ── Main wrapper ────────────────────────────────────────── */
.main-wrapper {
  margin-left: var(--sidebar-w);
  flex: 1; display: flex; flex-direction: column;
  min-height: 100vh;
  transition: margin-left var(--transition);
}
.sidebar.collapsed ~ .main-wrapper { margin-left: 62px; }

.topbar {
  position: sticky; top: 0; z-index: 90;
  height: var(--topbar-h);
  background: var(--bg-base);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 16px;
  padding: 0 24px;
}
.sidebar-toggle {
  background: none; border: none; color: var(--text-secondary);
  font-size: 18px; cursor: pointer; padding: 6px;
  border-radius: var(--radius); transition: background var(--transition);
}
.sidebar-toggle:hover { background: var(--bg-hover); color: var(--text-primary); }
.page-title { font-size: 18px; font-weight: 700; flex: 1; }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.alert-badge {
  background: var(--warning-dim); color: var(--warning);
  border: 1px solid var(--warning); border-radius: 20px;
  padding: 4px 12px; font-size: 12px; font-weight: 700;
  text-decoration: none; animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100%{opacity:1}50%{opacity:.7} }
.topbar-date { font-size: 12px; color: var(--text-muted); }

.page-content { padding: 24px; flex: 1; }

/* ── Cards ───────────────────────────────────────────────── */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.card-title { font-size: 15px; font-weight: 700; }
.card-body { padding: 20px; }

/* ── Stat cards ──────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px; margin-bottom: 24px;
}
.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  position: relative; overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}
.stat-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.stat-card::before {
  content: ''; position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  background: var(--stat-color, var(--accent));
}
.stat-icon { font-size: 28px; margin-bottom: 10px; display: block; }
.stat-value { font-size: 28px; font-weight: 800; line-height: 1; margin-bottom: 4px; }
.stat-label { font-size: 12px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: .06em; font-weight: 600; }
.stat-card.danger  { --stat-color: var(--danger); }
.stat-card.success { --stat-color: var(--success); }
.stat-card.info    { --stat-color: var(--info); }
.stat-card.warning { --stat-color: var(--warning); }

/* ── Tables ──────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th {
  text-align: left; font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .07em;
  color: var(--text-secondary); padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
td { padding: 12px 16px; border-bottom: 1px solid var(--border-light); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg-hover); }
.td-mono { font-family: var(--mono); font-size: 13px; }

/* ── Badges ──────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center;
  padding: 3px 10px; border-radius: 20px;
  font-size: 11px; font-weight: 700; letter-spacing: .04em;
  text-transform: uppercase; white-space: nowrap;
}
.badge-success { background: var(--success-dim); color: var(--success); }
.badge-danger  { background: var(--danger-dim);  color: var(--danger); }
.badge-warning { background: var(--warning-dim); color: var(--warning); }
.badge-info    { background: var(--info-dim);    color: var(--info); }
.badge-muted   { background: var(--bg-hover);    color: var(--text-secondary); }

/* Stock indicator */
.stock-bar-wrap { display: flex; align-items: center; gap: 10px; }
.stock-bar { flex: 1; height: 6px; background: var(--bg-elevated); border-radius: 3px; min-width: 60px; }
.stock-bar-fill { height: 100%; border-radius: 3px; transition: width .4s; }
.stock-ok   .stock-bar-fill { background: var(--success); }
.stock-low  .stock-bar-fill { background: var(--warning); }
.stock-crit .stock-bar-fill { background: var(--danger); }
.stock-val  { font-family: var(--mono); font-size: 12px; min-width: 60px; text-align: right; }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; border-radius: var(--radius);
  font-family: var(--font); font-size: 13px; font-weight: 600;
  cursor: pointer; border: 1px solid transparent;
  text-decoration: none; transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #000; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-danger  { background: var(--danger-dim); color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-ghost   { background: transparent; color: var(--text-secondary); border-color: var(--border); }
.btn-ghost:hover { background: var(--bg-hover); color: var(--text-primary); }
.btn-success { background: var(--success-dim); color: var(--success); border-color: var(--success); }
.btn-success:hover { background: var(--success); color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-icon { padding: 7px; }

/* ── Forms ───────────────────────────────────────────────── */
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--text-secondary); margin-bottom: 6px; }
.form-control {
  width: 100%; padding: 9px 12px;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text-primary);
  font-family: var(--font); font-size: 14px;
  transition: border-color var(--transition);
  outline: none;
}
.form-control:focus { border-color: var(--accent); }
.form-control option { background: var(--bg-surface); }
select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 80px; }
.form-hint { font-size: 11px; color: var(--text-muted); margin-top: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

/* ── Modal ───────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.7);
  z-index: 200; display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity var(--transition);
  padding: 20px;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); width: 100%; max-width: 560px;
  box-shadow: var(--shadow);
  transform: translateY(-16px); transition: transform var(--transition);
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal-header {
  padding: 18px 22px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-title { font-size: 16px; font-weight: 700; }
.modal-close {
  background: none; border: none; color: var(--text-muted);
  cursor: pointer; font-size: 20px; line-height: 1;
  transition: color var(--transition);
}
.modal-close:hover { color: var(--text-primary); }
.modal-body { padding: 22px; max-height: 70vh; overflow-y: auto; }
.modal-footer {
  padding: 16px 22px; border-top: 1px solid var(--border);
  display: flex; justify-content: flex-end; gap: 10px;
}

/* ── Alerts ──────────────────────────────────────────────── */
.alert {
  padding: 12px 16px; border-radius: var(--radius);
  border-left: 4px solid; margin-bottom: 18px; font-size: 14px;
}
.alert-success { background: var(--success-dim); border-color: var(--success); color: var(--success); }
.alert-danger  { background: var(--danger-dim);  border-color: var(--danger);  color: var(--danger); }
.alert-warning { background: var(--warning-dim); border-color: var(--warning); color: var(--warning); }
.alert-info    { background: var(--info-dim);    border-color: var(--info);    color: var(--info); }

/* ── Page toolbar ────────────────────────────────────────── */
.toolbar {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 20px; flex-wrap: wrap;
}
.toolbar-search { position: relative; }
.toolbar-search input { padding-left: 34px; width: 240px; }
.search-icon { position: absolute; left: 10px; top: 50%; transform: translateY(-50%); color: var(--text-muted); pointer-events: none; }
.toolbar-spacer { flex: 1; }

/* ── Pagination ──────────────────────────────────────────── */
.pagination {
  display: flex; align-items: center; gap: 6px;
  justify-content: center; margin-top: 20px;
}
.page-link {
  min-width: 34px; height: 34px; border-radius: var(--radius);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--text-secondary); text-decoration: none;
  border: 1px solid var(--border); font-size: 13px; font-weight: 600;
  transition: all var(--transition);
}
.page-link:hover { background: var(--bg-hover); color: var(--text-primary); }
.page-link.active { background: var(--accent); color: #000; border-color: var(--accent); }
.page-link.disabled { opacity: .4; pointer-events: none; }

/* ── Charts placeholder ──────────────────────────────────── */
.chart-container { position: relative; width: 100%; }
canvas { max-width: 100%; }

/* ── Login page ──────────────────────────────────────────── */
.login-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  margin: 0 auto;
  background: var(--bg-base);
  /* background-image: radial-gradient(ellipse at 20% 50%, rgba(240,165,0,.06) 0%, transparent 60%),
                    radial-gradient(ellipse at 80% 20%, rgba(56,139,253,.05) 0%, transparent 50%); */
}
.login-card {
  width: 100%; max-width: 400px;
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 40px;
  box-shadow: var(--shadow);
}
.login-logo { text-align: center; margin-bottom: 32px; }
.login-logo .brand-icon { font-size: 48px; display: block; margin-bottom: 8px; }
.login-logo h1 { font-size: 24px; font-weight: 800; color: var(--accent); }
.login-logo p  { font-size: 13px; color: var(--text-secondary); }

/* ── Misc utils ──────────────────────────────────────────── */
.text-muted    { color: var(--text-secondary); }
.text-danger   { color: var(--danger); }
.text-success  { color: var(--success); }
.text-warning  { color: var(--warning); }
.text-accent   { color: var(--accent); }
.text-center   { text-align: center; }
.text-right    { text-align: right; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-2 { margin-bottom: 16px; }
.d-flex { display: flex; align-items: center; gap: 8px; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 16px; }
.flex-wrap { flex-wrap: wrap; }
.empty-state {
  text-align: center; padding: 60px 20px; color: var(--text-secondary);
}
.empty-state .empty-icon { font-size: 48px; margin-bottom: 12px; display: block; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
.full-width { width: 100%; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.mobile-open { transform: translateX(0); }
  .main-wrapper { margin-left: 0 !important; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .page-content { padding: 14px; }
  .stats-grid { grid-template-columns: 1fr; }
  .toolbar-search input { width: 100%; }
}

/* ── Scrollbar ───────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }