/* ============================================================
   FoodInvoices — Shared Styles
   ============================================================ */

:root {
  --primary:        #16A34A;
  --primary-dark:   #15803D;
  --primary-light:  #DCFCE7;
  --bg:             #F9FAFB;
  --surface:        #FFFFFF;
  --text:           #111827;
  --text-muted:     #6B7280;
  --text-subtle:    #9CA3AF;
  --border:         #E5E7EB;
  --border-dark:    #D1D5DB;
  --danger:         #DC2626;
  --danger-bg:      #FEF2F2;
  --danger-border:  #FECACA;
  --warning:        #D97706;
  --warning-bg:     #FFFBEB;
  --warning-border: #FDE68A;
  --success-bg:     #F0FDF4;
  --success-border: #BBF7D0;
  --radius:         12px;
  --radius-sm:      6px;
  --shadow:         0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --sidebar-width:  240px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body { font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; background: var(--bg); color: var(--text); line-height: 1.5; }
a { color: inherit; }

/* ---- Layout ---- */
.app-layout   { display: flex; min-height: 100vh; }
.main-content { margin-left: var(--sidebar-width); flex: 1; background: var(--bg); min-height: 100vh; }

/* ---- Sidebar ---- */
.sidebar {
  width: var(--sidebar-width);
  background: var(--surface);
  border-right: 1px solid var(--border);
  position: fixed; top: 0; left: 0;
  height: 100vh; display: flex;
  flex-direction: column;
  overflow-y: auto; z-index: 50;
  transition: transform .3s;
}
.sidebar-logo   { padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: .625rem; }
.sidebar-logo-text { font-size: 1.125rem; font-weight: 700; color: var(--text); }
.sidebar-logo-text span { color: var(--primary); }
.sidebar-nav    { flex: 1; padding: .75rem 0; }
.nav-item       { display: flex; align-items: center; gap: .75rem; padding: .625rem 1.5rem; color: var(--text-muted); text-decoration: none; font-size: .9375rem; font-weight: 500; transition: all .15s; border-left: 3px solid transparent; }
.nav-item:hover { color: var(--text); background: var(--bg); }
.nav-item.active { color: var(--primary); background: var(--primary-light); border-left-color: var(--primary); }
.nav-icon       { font-size: 1.125rem; flex-shrink: 0; width: 20px; text-align: center; }
.nav-section    { padding: .375rem 1.5rem; font-size: .6875rem; font-weight: 600; color: var(--text-subtle); text-transform: uppercase; letter-spacing: .06em; margin-top: .5rem; }
.sidebar-footer { padding: 1rem 1.5rem; border-top: 1px solid var(--border); }
.user-restaurant { font-size: .8125rem; font-weight: 700; color: var(--text); margin-bottom: .125rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-email     { font-size: .75rem; color: var(--text-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-bottom: .75rem; }

/* ---- Page header ---- */
.page-header   { padding: 1.25rem 2rem; border-bottom: 1px solid var(--border); background: var(--surface); display: flex; align-items: center; gap: 1rem; }
.hamburger     { display: none; background: none; border: none; cursor: pointer; color: var(--text); font-size: 1.4rem; line-height: 1; padding: .25rem; }
.page-title    { font-size: 1.125rem; font-weight: 700; color: var(--text); }
.page-subtitle { font-size: .8125rem; color: var(--text-muted); margin-top: .125rem; }
.header-actions { margin-left: auto; display: flex; gap: .75rem; align-items: center; }

/* ---- KPI Grid ---- */
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; padding: 1.5rem 2rem; }
.kpi-card  { background: var(--surface); border-radius: var(--radius); padding: 1.25rem 1.5rem; box-shadow: var(--shadow); }
.kpi-icon  { font-size: 1.5rem; margin-bottom: .625rem; }
.kpi-label { font-size: .75rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; margin-bottom: .375rem; }
.kpi-value { font-size: 1.625rem; font-weight: 700; color: var(--text); line-height: 1.2; }
.kpi-sub   { font-size: .8125rem; color: var(--text-muted); margin-top: .25rem; }
.kpi-badge { display: inline-flex; align-items: center; gap: .25rem; padding: .25rem .625rem; border-radius: 99px; font-size: .75rem; font-weight: 600; margin-top: .5rem; }
.kpi-badge.green  { background: var(--success-bg);  color: var(--primary); }
.kpi-badge.yellow { background: var(--warning-bg);  color: var(--warning); }
.kpi-badge.red    { background: var(--danger-bg);   color: var(--danger); }
.kpi-badge.blue   { background: #EFF6FF; color: #2563EB; }

/* ---- Content sections ---- */
.content-section   { padding: 0 2rem 1.5rem; }
.grid-2            { display: grid; grid-template-columns: 1fr 1fr;    gap: 1.25rem; }
.grid-cols-3-2     { display: grid; grid-template-columns: 3fr 2fr;    gap: 1.25rem; }

/* ---- Cards ---- */
.card         { background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.card-header  { padding: 1rem 1.5rem; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.card-title   { font-size: .9375rem; font-weight: 600; color: var(--text); }
.card-body    { padding: 1.25rem 1.5rem; }
.card-body.no-pad { padding: 0; }

/* ---- Tables ---- */
.table-wrap     { overflow-x: auto; }
table           { width: 100%; border-collapse: collapse; font-size: .875rem; }
th              { text-align: left; padding: .625rem 1rem; font-size: .6875rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; border-bottom: 1px solid var(--border); background: var(--bg); white-space: nowrap; }
td              { padding: .75rem 1rem; border-bottom: 1px solid var(--border); color: var(--text); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: #F9FAFB; }
.text-right     { text-align: right; }
.text-muted     { color: var(--text-muted); }
.font-medium    { font-weight: 500; }

/* ---- Status badges ---- */
.badge          { display: inline-block; padding: .2rem .6rem; border-radius: 99px; font-size: .6875rem; font-weight: 600; white-space: nowrap; }
.badge-green    { background: var(--success-bg);  color: var(--primary); }
.badge-yellow   { background: var(--warning-bg);  color: var(--warning); }
.badge-red      { background: var(--danger-bg);   color: var(--danger); }
.badge-blue     { background: #EFF6FF; color: #2563EB; }
.badge-purple   { background: #F5F3FF; color: #7C3AED; }
.badge-gray     { background: var(--bg); color: var(--text-muted); border: 1px solid var(--border); }

/* ---- Buttons ---- */
.btn          { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; padding: .625rem 1.25rem; border-radius: var(--radius-sm); font-size: .9375rem; font-weight: 600; cursor: pointer; transition: all .15s; border: none; text-decoration: none; white-space: nowrap; }
.btn-primary  { background: var(--primary); color: white; }
.btn-primary:hover  { background: var(--primary-dark); }
.btn-primary:disabled { background: #86EFAC; cursor: not-allowed; }
.btn-outline  { background: transparent; color: var(--text); border: 1px solid var(--border-dark); }
.btn-outline:hover { background: var(--bg); border-color: var(--text-muted); }
.btn-ghost    { background: transparent; color: var(--text-muted); border: none; }
.btn-ghost:hover { color: var(--text); background: var(--bg); }
.btn-danger   { background: var(--danger); color: white; }
.btn-danger:hover { background: #B91C1C; }
.btn-sm       { padding: .375rem .875rem; font-size: .8125rem; border-radius: var(--radius-sm); }
.btn-full     { width: 100%; }

/* ---- Forms ---- */
.form-group      { margin-bottom: 1.25rem; }
.form-row        { display: grid; gap: 1rem; }
.form-row.cols-2 { grid-template-columns: 1fr 1fr; }
.form-row.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
label            { display: block; font-size: .875rem; font-weight: 500; color: #374151; margin-bottom: .375rem; }
label .opt       { color: var(--text-subtle); font-weight: 400; }
input, select    { width: 100%; padding: .625rem .875rem; border: 1px solid var(--border-dark); border-radius: var(--radius-sm); font-size: .9375rem; color: var(--text); background: white; outline: none; transition: border-color .15s, box-shadow .15s; }
input:focus, select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(22,163,74,.12); }
input::placeholder { color: var(--text-subtle); }
input.is-error   { border-color: var(--danger); }
input.is-error:focus { box-shadow: 0 0 0 3px rgba(220,38,38,.1); }

/* ---- Alert boxes ---- */
.alert         { padding: .875rem 1rem; border-radius: var(--radius-sm); font-size: .875rem; margin-bottom: 1.25rem; display: none; }
.alert.show    { display: block; }
.alert-error   { background: var(--danger-bg);  border: 1px solid var(--danger-border); color: var(--danger); }
.alert-success { background: var(--success-bg); border: 1px solid var(--success-border); color: var(--primary); }
.alert-warning { background: var(--warning-bg); border: 1px solid var(--warning-border); color: var(--warning); }

/* ---- Spinner ---- */
.spinner       { display: inline-block; width: 16px; height: 16px; border: 2px solid rgba(255,255,255,.35); border-top-color: white; border-radius: 50%; animation: spin .7s linear infinite; vertical-align: middle; margin-right: 6px; }
.spinner-sm    { width: 14px; height: 14px; }
.spinner-green { border-color: var(--primary-light); border-top-color: var(--primary); }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- Empty state ---- */
.empty-state  { text-align: center; padding: 2.5rem 1.5rem; }
.empty-icon   { font-size: 2.25rem; margin-bottom: .75rem; }
.empty-title  { font-size: .9375rem; font-weight: 600; color: var(--text); margin-bottom: .375rem; }
.empty-text   { font-size: .875rem; color: var(--text-muted); }

/* ---- Alert list items (dashboard) ---- */
.alert-list-item  { display: flex; align-items: flex-start; gap: .75rem; padding: .75rem 0; border-bottom: 1px solid var(--border); }
.alert-list-item:last-child { border-bottom: none; }
.alert-dot        { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; margin-top: .35rem; }
.alert-dot.red    { background: var(--danger); }
.alert-dot.yellow { background: var(--warning); }
.alert-dot.green  { background: var(--primary); }
.alert-item-title { font-size: .875rem; font-weight: 500; color: var(--text); }
.alert-item-sub   { font-size: .8125rem; color: var(--text-muted); }

/* ---- Mobile overlay ---- */
.overlay      { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 40; }
.overlay.show { display: block; }

/* ---- Auth pages (centered card) ---- */
.auth-page    { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 1.5rem; background: var(--bg); }
.auth-card    { background: var(--surface); border-radius: var(--radius); box-shadow: 0 4px 24px rgba(0,0,0,.08); padding: 2.5rem; width: 100%; max-width: 440px; }
.auth-card.wide { max-width: 580px; }
.auth-logo    { display: flex; align-items: center; gap: .625rem; margin-bottom: 2rem; justify-content: center; }
.auth-logo-text { font-size: 1.4rem; font-weight: 700; color: var(--text); }
.auth-logo-text span { color: var(--primary); }
.auth-heading { font-size: 1.25rem; font-weight: 700; color: var(--text); text-align: center; margin-bottom: .375rem; }
.auth-sub     { font-size: .875rem; color: var(--text-muted); text-align: center; margin-bottom: 1.75rem; }
.auth-divider { text-align: center; color: var(--text-subtle); font-size: .875rem; margin: 1.25rem 0; position: relative; }
.auth-divider::before, .auth-divider::after { content: ''; position: absolute; top: 50%; width: calc(50% - 1.25rem); height: 1px; background: var(--border); }
.auth-divider::before { left: 0; } .auth-divider::after { right: 0; }
.auth-link    { text-align: center; font-size: .875rem; color: var(--text-muted); margin-top: 1.25rem; }
.auth-link a  { color: var(--primary); text-decoration: none; font-weight: 500; }
.auth-link a:hover { text-decoration: underline; }
.form-section { border-top: 1px solid var(--border); padding-top: 1.5rem; margin-top: 1.5rem; }
.form-section-title { font-size: .875rem; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 1.25rem; }

/* ---- Slide-over panel ---- */
.slide-over-wrap { position: fixed; inset: 0; z-index: 300; pointer-events: none; }
.slide-over-wrap.open { pointer-events: all; }
.slide-over-bg   { position: absolute; inset: 0; background: rgba(0,0,0,.45); opacity: 0; transition: opacity .3s; }
.slide-over-wrap.open .slide-over-bg { opacity: 1; }
.slide-over       { position: absolute; top: 0; right: 0; bottom: 0; width: 520px; max-width: 100vw; background: white; box-shadow: -4px 0 32px rgba(0,0,0,.12); display: flex; flex-direction: column; transform: translateX(100%); transition: transform .3s; overflow: hidden; }
.slide-over-wrap.open .slide-over { transform: translateX(0); }
.slide-over-head  { padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--border); display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; flex-shrink: 0; }
.slide-over-title { font-size: 1.0625rem; font-weight: 700; color: var(--text); }
.slide-over-sub   { font-size: .8125rem; color: var(--text-muted); margin-top: .25rem; }
.slide-over-close { background: none; border: none; cursor: pointer; color: var(--text-muted); font-size: 1.25rem; line-height: 1; padding: .25rem; flex-shrink: 0; }
.slide-over-close:hover { color: var(--text); }
.slide-over-body  { flex: 1; overflow-y: auto; padding: 1.5rem; }
.slide-over-footer { padding: 1rem 1.5rem; border-top: 1px solid var(--border); display: flex; gap: .75rem; justify-content: flex-end; flex-shrink: 0; }

/* ---- Tabs ---- */
.tabs          { display: flex; border-bottom: 2px solid var(--border); margin-bottom: 1.5rem; gap: 0; }
.tab-btn       { padding: .75rem 1.25rem; font-size: .9375rem; font-weight: 500; color: var(--text-muted); background: none; border: none; cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -2px; transition: all .15s; white-space: nowrap; }
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ---- Filter bar ---- */
.filter-bar    { display: flex; gap: .75rem; align-items: center; flex-wrap: wrap; padding: 1rem 2rem; background: var(--surface); border-bottom: 1px solid var(--border); }
.filter-input  { padding: .5rem .875rem .5rem 2.25rem; border: 1px solid var(--border-dark); border-radius: var(--radius-sm); font-size: .875rem; color: var(--text); background: white url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%239CA3AF' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E") no-repeat .75rem center; outline: none; min-width: 200px; flex: 1; max-width: 300px; transition: border-color .15s, box-shadow .15s; }
.filter-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(22,163,74,.1); }
.filter-select { padding: .5rem .875rem; border: 1px solid var(--border-dark); border-radius: var(--radius-sm); font-size: .875rem; color: var(--text); background: white; outline: none; cursor: pointer; transition: border-color .15s; }
.filter-select:focus { border-color: var(--primary); }
.filter-clear  { font-size: .8125rem; color: var(--text-muted); background: none; border: none; cursor: pointer; padding: .5rem; }
.filter-clear:hover { color: var(--danger); }
.filter-summary { padding: .625rem 2rem; font-size: .875rem; color: var(--text-muted); background: var(--bg); border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 1.5rem; }
.filter-summary strong { color: var(--text); }

/* ---- Progress / Upload ---- */
.upload-zone  { border: 2px dashed var(--border-dark); border-radius: var(--radius); padding: 3rem 2rem; text-align: center; cursor: pointer; transition: all .2s; background: var(--bg); }
.upload-zone:hover, .upload-zone.drag-over { border-color: var(--primary); background: var(--primary-light); }
.upload-zone.drag-over * { pointer-events: none; }
.upload-icon  { font-size: 2.5rem; margin-bottom: .75rem; }
.upload-title { font-size: 1rem; font-weight: 600; color: var(--text); margin-bottom: .375rem; }
.upload-hint  { font-size: .875rem; color: var(--text-muted); }
.upload-hint a { color: var(--primary); text-decoration: none; font-weight: 500; }
.upload-hint a:hover { text-decoration: underline; }
.progress-bar  { height: 6px; background: var(--border); border-radius: 3px; overflow: hidden; margin-top: .75rem; }
.progress-fill { height: 100%; background: var(--primary); border-radius: 3px; transition: width .3s; }

/* ---- Stat pairs ---- */
.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.stat-item { background: var(--bg); border-radius: var(--radius-sm); padding: .875rem 1rem; }
.stat-label { font-size: .75rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; margin-bottom: .25rem; }
.stat-value { font-size: 1.125rem; font-weight: 700; color: var(--text); }

/* ---- Inline editable row ---- */
.inline-edit-input { padding: .375rem .625rem; border: 1px solid var(--border-dark); border-radius: 4px; font-size: .875rem; width: 100%; max-width: 100px; }
.inline-edit-input:focus { border-color: var(--primary); outline: none; box-shadow: 0 0 0 2px rgba(22,163,74,.1); }

/* ---- Supplier spend bar ---- */
.spend-bar      { background: var(--primary-light); border-radius: 3px; height: 5px; margin-top: 4px; }
.spend-bar-fill { background: var(--primary); height: 100%; border-radius: 3px; }

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .kpi-grid      { grid-template-columns: repeat(2, 1fr); }
  .grid-2        { grid-template-columns: 1fr; }
  .grid-cols-3-2 { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .sidebar       { transform: translateX(-100%); }
  .sidebar.open  { transform: translateX(0); }
  .main-content  { margin-left: 0; }
  .hamburger     { display: block; }
  .kpi-grid      { padding: 1rem; gap: .875rem; }
  .content-section { padding: 0 1rem 1.25rem; }
  .page-header   { padding: .875rem 1rem; }
}
@media (max-width: 480px) {
  .kpi-grid        { grid-template-columns: 1fr 1fr; }
  .form-row.cols-2, .form-row.cols-3 { grid-template-columns: 1fr; }
  .auth-card       { padding: 1.75rem 1.25rem; }
}