*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0d1117;
  --bg2:#131920;
  --bg3:#1a2332;
  --surface:#1e2d3d;
  --surface2:#243447;
  --border:#2a3f55;
  --border2:#344f6b;
  --accent:#00d4ff;
  --accent2:#0097b8;
  --accent-glow:rgba(0,212,255,0.15);
  --green:#00e599;
  --red:#ff4d6d;
  --orange:#ffb347;
  --text:#e8f4f8;
  --text2:#8da5b8;
  --text3:#566d83;
  --radius:14px;
  --radius-sm:8px;
  --shadow:0 8px 32px rgba(0,0,0,0.4);
  --shadow-sm:0 2px 12px rgba(0,0,0,0.3);
  --font-display:'Syne',sans-serif;
  --font-body:'DM Sans',sans-serif;
}
:root[data-theme="light"]{
  --bg:#f5f8fa;
  --bg2:#eef2f6;
  --bg3:#ffffff;
  --surface:#ffffff;
  --surface2:#f1f5f9;
  --border:#dde5ec;
  --border2:#c7d2dc;
  --accent:#0097b8;
  --accent2:#007a94;
  --accent-glow:rgba(0,151,184,0.10);
  --green:#00a878;
  --red:#e0294a;
  --orange:#c97b12;
  --text:#14202c;
  --text2:#47607a;
  --text3:#7c93a8;
  --shadow:0 8px 32px rgba(15,35,55,0.10);
  --shadow-sm:0 2px 12px rgba(15,35,55,0.07);
}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  background:var(--bg);
  color:var(--text);
  min-height:100vh;
  overflow-x:hidden;
}
/* ── BACKGROUND ── */
body::before{
  content:'';position:fixed;inset:0;z-index:-1;
  background:
    radial-gradient(ellipse 60% 50% at 10% 20%,rgba(0,212,255,0.06) 0%,transparent 70%),
    radial-gradient(ellipse 50% 40% at 85% 80%,rgba(0,229,153,0.04) 0%,transparent 70%),
    var(--bg);
}
:root[data-theme="light"] body::before{
  background:
    radial-gradient(ellipse 60% 50% at 10% 20%,rgba(0,151,184,0.05) 0%,transparent 70%),
    radial-gradient(ellipse 50% 40% at 85% 80%,rgba(0,168,120,0.04) 0%,transparent 70%),
    var(--bg);
}
/* ── LAYOUT ── */
#app{display:flex;flex-direction:column;min-height:100vh}
/* ── NAV ── */
nav{
  position:sticky;top:0;z-index:100;
  background:rgba(13,17,23,0.85);
  backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border);
  padding:0 20px;
  display:flex;align-items:center;justify-content:space-between;
  height:64px;
}
/* ── NAV BRAND ── */
.nav-brand{
  display:flex;align-items:center;gap:10px;
  text-decoration:none;
}
.nav-brand-icon{
  width:36px;height:36px;flex-shrink:0;
  border-radius:8px;
  background:linear-gradient(135deg,#0d1117,#161b2e);
  border:1px solid rgba(245,200,66,0.35);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 2px 8px rgba(0,0,0,0.4);
}
.nav-brand-text{
  display:flex;flex-direction:column;line-height:1.1;
}
.nav-brand-company{
  font-family:var(--font-body);
  font-size:.62rem;font-weight:600;
  letter-spacing:.12em;text-transform:uppercase;
  color:var(--accent);opacity:.8;
}
.nav-brand-name{
  font-family:var(--font-display);
  font-size:1.05rem;font-weight:700;
  letter-spacing:-.01em;
  background:linear-gradient(135deg,var(--text),var(--text2));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
/* ── NAV TABS ── */
.nav-tabs{display:flex;gap:4px}
.nav-tab{
  display:flex;align-items:center;gap:7px;
  padding:8px 14px;border-radius:10px;
  font-family:var(--font-body);font-size:.85rem;font-weight:500;
  cursor:pointer;border:none;background:transparent;color:var(--text2);
  transition:all .2s;
}
.nav-tab-icon{font-size:.95rem;line-height:1}
.nav-tab:hover{color:var(--text);background:var(--surface)}
.nav-tab.active{color:var(--accent);background:var(--accent-glow)}
/* ── NAV RIGHT CLUSTER ── */
.nav-right{display:flex;align-items:center;gap:10px}
/* ── BOTTOM APP NAV (mobile) ── */
.bottom-nav{
  display:none; /* shown only on mobile via media query below */
  position:fixed;left:0;right:0;bottom:0;z-index:150;
  background:rgba(13,17,23,0.9);backdrop-filter:blur(20px);
  border-top:1px solid var(--border);
  padding:6px 6px calc(6px + env(safe-area-inset-bottom,0px));
  align-items:flex-end;justify-content:space-around;
}
:root[data-theme="light"] .bottom-nav{background:rgba(245,248,250,0.92)}
.bottom-nav-item{
  display:flex;flex-direction:column;align-items:center;gap:2px;
  background:transparent;border:none;color:var(--text3);
  font-family:var(--font-body);font-size:.62rem;font-weight:600;
  padding:6px 4px;border-radius:10px;flex:1;min-width:0;
  transition:color .2s;
}
.bottom-nav-icon{font-size:1.15rem;line-height:1}
.bottom-nav-label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}
.bottom-nav-item.active{color:var(--accent)}
.bottom-nav-fab{
  flex:0 0 auto;position:relative;top:-16px;
  width:52px;height:52px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent2),var(--accent));
  box-shadow:0 6px 18px rgba(0,212,255,0.35);
  align-items:center;justify-content:center;padding:0;
}
.bottom-nav-fab-icon{font-size:1.3rem;color:#04222c;line-height:1}
.bottom-nav-fab.active{color:initial}
/* ── MAIN ── */
main{flex:1;padding:24px 20px;max-width:900px;width:100%;margin:0 auto}
/* ── VIEWS ── */
.view{display:none;animation:fadeUp .3s ease}
.view.active{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
/* ── PAGE HEADER ── */
.page-header{margin-bottom:28px}
.page-title{
  font-family:var(--font-display);font-weight:700;font-size:1.6rem;
  letter-spacing:-.02em;color:var(--text);
}
.page-subtitle{color:var(--text2);font-size:.9rem;margin-top:4px}
/* ── STATS ROW ── */
.stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:28px}
.stat-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:16px;
}
.stat-label{font-size:.75rem;color:var(--text3);text-transform:uppercase;letter-spacing:.06em;font-weight:600}
.stat-value{font-family:var(--font-display);font-size:1.4rem;font-weight:700;margin-top:4px}
.stat-value.green{color:var(--green)}
.stat-value.accent{color:var(--accent)}
.stat-value.orange{color:var(--orange)}
/* ── BUTTONS ── */
.btn{
  display:inline-flex;align-items:center;gap:7px;
  padding:10px 18px;border-radius:var(--radius-sm);
  font-family:var(--font-body);font-size:.88rem;font-weight:500;
  cursor:pointer;border:none;transition:all .2s;
}
.btn-primary{background:var(--accent);color:#000}
.btn-primary:hover{background:#33ddff;transform:translateY(-1px);box-shadow:0 4px 20px rgba(0,212,255,.3)}
.btn-outline{background:transparent;color:var(--text2);border:1px solid var(--border2)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}
.btn-danger{background:rgba(255,77,109,.12);color:var(--red);border:1px solid rgba(255,77,109,.25)}
.btn-danger:hover{background:rgba(255,77,109,.2)}
.btn-whatsapp{background:rgba(37,211,102,.12);color:#25D366;border:1px solid rgba(37,211,102,.3)}
.btn-whatsapp:hover{background:rgba(37,211,102,.2)}
.btn-success{background:rgba(0,229,153,.1);color:var(--green);border:1px solid rgba(0,229,153,.2)}
.btn-success:hover{background:rgba(0,229,153,.2)}
.btn-sm{padding:6px 12px;font-size:.8rem}
.btn-icon{padding:8px;border-radius:var(--radius-sm)}
/* ── CARD ── */
.card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:24px;margin-bottom:16px;
  box-shadow:var(--shadow-sm);
}
.card-header{
  display:flex;align-items:center;justify-content:space-between;
  margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--border);
}
.card-title{font-family:var(--font-display);font-weight:600;font-size:1rem}
/* ── FORM ── */
.form-grid{display:grid;gap:16px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group{display:flex;flex-direction:column;gap:6px}
.form-label{font-size:.8rem;font-weight:500;color:var(--text2);text-transform:uppercase;letter-spacing:.05em}
.form-input,.form-select,.form-textarea{
  background:var(--bg3);border:1px solid var(--border);
  border-radius:var(--radius-sm);padding:10px 14px;
  color:var(--text);font-family:var(--font-body);font-size:.9rem;
  transition:border-color .2s,box-shadow .2s;width:100%;
}
.form-input:focus,.form-select:focus,.form-textarea:focus{
  outline:none;border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(0,212,255,.1);
}
.form-select option{background:var(--bg3)}
.form-textarea{resize:vertical;min-height:80px}
/* ── ITEMS SECTION ── */
.items-section{margin:20px 0}
.items-header{
  display:flex;align-items:center;justify-content:space-between;
  margin-bottom:12px;
}
.items-label{font-size:.8rem;font-weight:600;color:var(--text2);text-transform:uppercase;letter-spacing:.05em}
.item-row{
  display:grid;grid-template-columns:1fr auto 90px auto;gap:8px;align-items:center;
  background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:10px 12px;margin-bottom:8px;
  transition:border-color .2s;
}
.item-row:hover{border-color:var(--border2)}
.item-name{font-size:.9rem;color:var(--text)}
.item-qty-input{
  width:60px;background:var(--surface2);border:1px solid var(--border2);
  border-radius:6px;padding:6px 8px;color:var(--text);
  font-family:var(--font-body);font-size:.85rem;text-align:center;
}
.item-price{font-size:.85rem;color:var(--accent);font-weight:600;white-space:nowrap}
.item-remove{
  background:none;border:none;color:var(--text3);cursor:pointer;
  padding:4px;border-radius:4px;transition:color .2s;font-size:1rem;
  display:flex;align-items:center;
}
.item-remove:hover{color:var(--red)}
.no-items{
  text-align:center;padding:32px;color:var(--text3);
  border:1px dashed var(--border);border-radius:var(--radius-sm);
  font-size:.88rem;
}
/* ── TOTALS ── */
.totals-section{
  background:var(--bg3);border:1px solid var(--border2);
  border-radius:var(--radius-sm);padding:16px;margin-top:8px;
}
.total-row{
  display:flex;justify-content:space-between;align-items:center;
  padding:6px 0;font-size:.9rem;
}
.total-row.main{
  border-top:1px solid var(--border2);margin-top:8px;padding-top:12px;
  font-weight:700;font-size:1rem;
}
.total-row.balance{font-size:1rem;font-weight:700}
.balance-positive{color:var(--red)}
.balance-zero{color:var(--green)}
.balance-negative{color:var(--orange)}
/* ── ITEM PICKER MODAL ── */
.modal-overlay{
  display:none;position:fixed;inset:0;z-index:200;
  background:rgba(0,0,0,.6);backdrop-filter:blur(4px);
  align-items:center;justify-content:center;padding:20px;
}
.modal-overlay.open{display:flex}
.modal{
  background:var(--bg2);border:1px solid var(--border2);
  border-radius:18px;width:100%;max-width:480px;max-height:80vh;
  overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--shadow);animation:fadeUp .25s ease;
}
.modal-header{
  padding:20px 24px;border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
}
.modal-title{font-family:var(--font-display);font-weight:600;font-size:1rem}
.modal-close{
  background:none;border:none;color:var(--text3);cursor:pointer;
  font-size:1.4rem;line-height:1;padding:2px;
  transition:color .2s;
}
.modal-close:hover{color:var(--text)}
.modal-body{padding:16px 24px;overflow-y:auto}
.catalog-item{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px;border-radius:var(--radius-sm);cursor:pointer;
  transition:background .15s;border:1px solid transparent;
}
.catalog-item:hover{background:var(--surface2);border-color:var(--border)}
.catalog-item-name{font-size:.9rem;font-weight:500}
.catalog-item-price{font-size:.85rem;color:var(--accent);font-weight:600}
/* ── SALES LIST ── */
.sales-toolbar{
  display:flex;gap:10px;margin-bottom:20px;align-items:center;flex-wrap:wrap;
}
.search-input{
  flex:1;min-width:180px;
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-sm);padding:9px 14px;
  color:var(--text);font-family:var(--font-body);font-size:.88rem;
}
.search-input:focus{outline:none;border-color:var(--accent)}
.sale-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:18px 20px;margin-bottom:12px;
  cursor:pointer;transition:all .2s;
}
.sale-card:hover{border-color:var(--accent);transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.sale-card-top{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:10px}
.sale-buyer{font-weight:600;font-size:.95rem}
.sale-date{font-size:.8rem;color:var(--text3);margin-top:2px}
.sale-badge{
  padding:4px 10px;border-radius:20px;font-size:.75rem;font-weight:600;
  white-space:nowrap;
}
.badge-paid{background:rgba(0,229,153,.12);color:var(--green)}
.badge-partial{background:rgba(255,179,71,.12);color:var(--orange)}
.badge-unpaid{background:rgba(255,77,109,.12);color:var(--red)}
.sale-meta{display:flex;gap:16px;flex-wrap:wrap}
.sale-meta-item{font-size:.82rem;color:var(--text2)}
.sale-meta-item strong{color:var(--text)}
.sale-actions{display:flex;gap:8px;margin-top:12px;padding-top:12px;border-top:1px solid var(--border)}
/* ── SETTINGS ── */
.settings-section{margin-bottom:32px}
.settings-title{
  font-family:var(--font-display);font-weight:600;font-size:1rem;
  margin-bottom:16px;color:var(--text2);
}
.catalog-list{display:flex;flex-direction:column;gap:8px}
.catalog-edit-row{
  display:grid;grid-template-columns:1fr auto auto auto;gap:8px;align-items:center;
  background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 12px;
}
.catalog-edit-name{font-size:.9rem}
.catalog-edit-price{
  color:var(--accent);font-size:.9rem;font-weight:600;width:90px;
  background:var(--surface2);border:1px solid var(--border2);border-radius:6px;
  padding:6px 8px;color:var(--accent);font-family:var(--font-body);text-align:right;
}
.add-item-form{
  display:flex;gap:10px;margin-top:12px;align-items:flex-end;flex-wrap:wrap;
}
.add-item-form .form-group{flex:1;min-width:150px}
/* ── DETAIL PANEL ── */
.detail-section{margin-bottom:20px}
.detail-label{font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;color:var(--text3);font-weight:600;margin-bottom:6px}
.detail-value{font-size:.95rem;color:var(--text)}
.items-table{width:100%;border-collapse:collapse;margin-top:8px;font-size:.88rem}
.items-table th{text-align:left;padding:8px 10px;border-bottom:1px solid var(--border);color:var(--text2);font-weight:500}
.items-table td{padding:8px 10px;border-bottom:1px solid var(--border)}
.items-table tr:last-child td{border-bottom:none}
/* ── TOAST ── */
#toast{
  position:fixed;bottom:24px;right:20px;z-index:999;
  padding:12px 20px;border-radius:var(--radius-sm);
  font-size:.88rem;font-weight:500;
  background:var(--surface2);border:1px solid var(--border2);
  box-shadow:var(--shadow);
  transform:translateY(80px);opacity:0;
  transition:all .3s ease;pointer-events:none;
}
#toast.show{transform:none;opacity:1}
#toast.success{border-color:var(--green);color:var(--green)}
#toast.error{border-color:var(--red);color:var(--red)}
/* ── EMPTY STATE ── */
.empty-state{
  text-align:center;padding:60px 20px;
}
.empty-icon{font-size:3rem;margin-bottom:12px;opacity:.4}
.empty-title{font-family:var(--font-display);font-size:1.1rem;color:var(--text2);margin-bottom:6px}
.empty-sub{font-size:.85rem;color:var(--text3)}
/* ── DIVIDER ── */
.divider{border:none;border-top:1px solid var(--border);margin:20px 0}
/* ── FOOTER ── */
footer{
  text-align:center;padding:20px;
  border-top:1px solid var(--border);
  font-size:.75rem;color:var(--text3);
  line-height:1.6;
}
footer a{color:var(--text3);text-decoration:none}
footer a:hover{color:var(--accent)}
/* ── SCROLLBAR ── */
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--border2);border-radius:3px}
/* ── MOBILE ── */
@media(max-width:600px){
  nav{
    flex-wrap:wrap;height:auto;
    padding:14px 16px 0;row-gap:12px;
  }
  .nav-brand{flex:1 1 100%;order:1}
  .nav-brand-icon{width:40px;height:40px}
  .nav-brand-company{font-size:.68rem}
  .nav-brand-name{font-size:1.3rem}
  .nav-right{flex:1 1 100%;order:2;justify-content:flex-start}
  .nav-user{margin-left:0;padding-left:0}
  .nav-tabs{
    order:3;flex:1 1 100%;display:flex;
    justify-content:space-between;gap:2px;
    border-top:1px solid var(--border);
    padding:10px 0 12px;margin-top:0;
  }
  .nav-tab{flex-direction:column;gap:3px;padding:6px 4px;font-size:.66rem;flex:1;border-radius:10px}
  .nav-tab-icon{font-size:1.25rem}
  .bottom-nav{display:none}
  main{padding:16px 14px}
  .stats-row{grid-template-columns:1fr 1fr}
  .form-row{grid-template-columns:1fr}
  .item-row{grid-template-columns:1fr 60px 80px 28px;gap:6px}
  .catalog-edit-row{grid-template-columns:1fr 80px 28px}
  .sale-meta{gap:10px}
  .sale-actions{flex-wrap:wrap}
}
@media(max-width:380px){
  .stats-row{grid-template-columns:1fr}
  .nav-brand-name{font-size:1.1rem}
  .nav-brand-company{font-size:.6rem}
}

/* ── SPLASH / LOADING SCREEN ── */
.splash-screen{
  position:fixed;inset:0;z-index:500;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg);
}
.splash-inner{
  display:flex;flex-direction:column;align-items:center;gap:14px;
  text-align:center;padding:40px;
}
.splash-logo{
  width:80px;height:80px;border-radius:18px;
  background:linear-gradient(135deg,#0d1117,#161b2e);
  border:1px solid rgba(245,200,66,0.35);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 32px rgba(0,0,0,0.5);
  animation:pulse 2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{box-shadow:0 8px 32px rgba(0,0,0,.5)}50%{box-shadow:0 8px 40px rgba(245,200,66,.2)}}
.splash-title{
  font-family:var(--font-display);font-size:1.4rem;font-weight:700;
  background:linear-gradient(135deg,var(--text),var(--text2));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.splash-sub{font-size:.88rem;color:var(--text3)}
.splash-spinner{
  width:28px;height:28px;border-radius:50%;
  border:2px solid var(--border2);
  border-top-color:var(--accent);
  animation:spin .8s linear infinite;margin-top:8px;
}
.btn-spinner{
  display:inline-block;width:14px;height:14px;border-radius:50%;
  border:2px solid currentColor;border-top-color:transparent;
  opacity:.85;animation:spin .7s linear infinite;vertical-align:middle;margin-right:7px;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ── FIREBASE SETUP MODAL ── */
.fb-setup-modal{max-width:560px;max-height:90vh}
.fb-setup-body{padding:20px 24px 24px}
.fb-setup-intro{font-size:.9rem;color:var(--text2);margin-bottom:14px;line-height:1.55}
.fb-paste-hint{
  background:rgba(0,212,255,.06);border:1px solid rgba(0,212,255,.15);
  border-radius:var(--radius-sm);padding:12px 14px;
  font-size:.82rem;color:var(--text2);line-height:1.5;
}
.fb-paste-hint strong{color:var(--accent)}
.fb-error{
  color:var(--red);font-size:.83rem;margin-top:12px;min-height:18px;
  font-weight:500;
}
.fb-tip{
  margin-top:12px;font-size:.78rem;color:var(--text3);
  text-align:center;line-height:1.5;
}

/* ── FIREBASE STATUS (settings page) ── */
.fb-status-row{
  display:flex;align-items:center;gap:10px;
  background:rgba(0,229,153,.06);border:1px solid rgba(0,229,153,.15);
  border-radius:var(--radius-sm);padding:12px 16px;
}
.fb-status-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--green);
  box-shadow:0 0 8px rgba(0,229,153,.6);
  flex-shrink:0;
}

/* ══ LOGIN SCREEN ══ */
.login-screen{
  position:fixed;inset:0;z-index:400;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg);padding:20px;
}
.login-card{
  background:var(--surface);border:1px solid var(--border2);
  border-radius:20px;padding:40px 36px;
  width:100%;max-width:400px;
  text-align:center;
  box-shadow:0 24px 64px rgba(0,0,0,.5);
  animation:fadeUp .3s ease;
}
.login-logo{
  width:80px;height:80px;border-radius:18px;
  background:linear-gradient(135deg,#0d1117,#161b2e);
  border:1px solid rgba(245,200,66,0.4);
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 16px;
  box-shadow:0 8px 24px rgba(0,0,0,.4),0 0 32px rgba(245,200,66,.08);
}
.login-brand{
  font-size:.7rem;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--accent);opacity:.8;margin-bottom:4px;
}
.login-title{
  font-family:var(--font-display);font-size:1.7rem;font-weight:800;
  letter-spacing:-.02em;color:var(--text);margin-bottom:6px;
}
.login-subtitle{font-size:.88rem;color:var(--text2);margin-bottom:32px}

/* Google sign-in button */
.btn-google{
  display:flex;align-items:center;justify-content:center;gap:12px;
  width:100%;padding:13px 20px;border-radius:10px;
  background:#fff;color:#1f1f1f;
  font-family:var(--font-body);font-size:.95rem;font-weight:600;
  border:none;cursor:pointer;
  transition:all .2s;
  box-shadow:0 2px 8px rgba(0,0,0,.2);
}
.btn-google:hover{background:#f5f5f5;transform:translateY(-1px);box-shadow:0 6px 20px rgba(0,0,0,.25)}
.btn-google:active{transform:none}

.login-spinner{
  display:flex;align-items:center;justify-content:center;gap:10px;
  margin-top:4px;height:48px;
}
.login-error{
  color:var(--red);font-size:.83rem;margin-top:14px;
  min-height:20px;font-weight:500;line-height:1.4;
}
.login-footer{
  margin-top:28px;font-size:.78rem;color:var(--text3);
  line-height:1.6;border-top:1px solid var(--border);padding-top:20px;
}
.login-links{margin-top:14px;font-size:.78rem;text-align:center}
.login-links a{color:var(--text3);text-decoration:none}
.login-links a:hover{color:var(--accent)}

/* ══ NAV USER ══ */
.nav-user{
  display:flex;align-items:center;gap:8px;
  margin-left:auto;padding-left:16px;
  cursor:pointer;border-radius:8px;padding:6px 10px;
  transition:background .2s;
  flex-shrink:0;
}
.nav-user:hover{background:var(--surface)}
.nav-user-name{font-size:.82rem;color:var(--text2);font-weight:500}
.nav-avatar{width:28px;height:28px;border-radius:50%;font-size:.7rem}
.nav-user-caret{font-size:.65rem;color:var(--text3);margin-left:-2px}

/* ── NAV USER DROPDOWN MENU ── */
.nav-user-wrap{position:relative}
.user-menu{
  display:none;position:absolute;top:calc(100% + 8px);right:0;z-index:120;
  min-width:250px;max-width:300px;
  background:var(--surface);border:1px solid var(--border2);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:8px;
}
.user-menu.open{display:block}
.user-menu-header{display:flex;align-items:center;gap:10px;padding:8px 10px 10px}
.user-menu-avatar{width:36px;height:36px;font-size:.8rem;flex-shrink:0}
.user-menu-operator-name{font-size:.88rem;font-weight:600;color:var(--text)}
.user-menu-operator-role{font-size:.76rem;color:var(--text3);margin-top:1px}
.user-menu-divider{height:1px;background:var(--border);margin:6px 4px}
.user-menu-label{font-size:.7rem;text-transform:uppercase;letter-spacing:.04em;color:var(--text3);padding:6px 10px 4px;font-weight:600}
.user-menu-item{
  display:flex;align-items:center;gap:9px;width:100%;text-align:left;
  background:transparent;border:none;color:var(--text2);
  font-family:var(--font-body);font-size:.85rem;font-weight:500;
  padding:9px 10px;border-radius:8px;cursor:pointer;transition:background .15s;
}
.user-menu-item:hover{background:var(--bg3);color:var(--text)}
.user-menu-danger:hover{background:rgba(255,77,109,0.1);color:var(--red)}
.user-menu-operator-avatar{
  width:26px;height:26px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--accent2),var(--accent));
  color:#04222c;font-weight:700;font-size:.68rem;
  display:flex;align-items:center;justify-content:center;
}
.user-menu-operator-info{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.user-menu-operator-info .role-badge{margin-left:0}

/* ══ USER AVATAR (shared) ══ */
.user-avatar{
  background:linear-gradient(135deg,var(--accent2),var(--accent));
  color:#000;font-weight:700;font-size:.85rem;
  display:flex;align-items:center;justify-content:center;
  background-size:cover;background-position:center;
  flex-shrink:0;
}

/* ══ ACCOUNT CARD (settings) ══ */
.account-card{
  display:flex;align-items:center;gap:16px;
  padding:20px 24px;margin-bottom:24px;
  background:var(--bg3);
  border-color:var(--border2);
}
.account-avatar-wrap{ flex-shrink:0; }
.account-avatar{
  width:52px;height:52px;border-radius:50%;
  font-size:1.1rem;font-weight:700;
  border:2px solid var(--border2);
}
.account-info{flex:1;min-width:0}
.account-name{
  font-family:var(--font-display);font-weight:600;
  font-size:1rem;color:var(--text);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.account-email{font-size:.82rem;color:var(--text2);margin-top:2px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}

/* ══ MOBILE TWEAKS ══ */
@media(max-width:600px){
  .login-card{padding:32px 20px}
}

/* ══ STATISTICS ══ */
.stats-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.chart-svg{width:100%;height:auto;display:block}
.chart-empty{text-align:center;padding:36px 20px;color:var(--text3);font-size:.88rem}
.donut-wrap{display:flex;align-items:center;justify-content:center;gap:24px;flex-wrap:wrap;padding:8px 0}
.donut-svg{flex-shrink:0}
.legend{display:flex;flex-direction:column;gap:10px;min-width:130px}
.legend-row{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--text2)}
.legend-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}
.legend-label{flex:1}
.legend-value{font-weight:600;color:var(--text);white-space:nowrap}
.legend-pct{color:var(--text3);font-weight:400;font-size:.78rem;margin-left:2px}
.topitem-row{display:grid;grid-template-columns:120px 1fr auto;align-items:center;gap:12px;margin-bottom:14px}
.topitem-row:last-child{margin-bottom:0}
.topitem-name{font-size:.85rem;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topitem-bar-track{background:var(--bg3);border-radius:6px;height:10px;overflow:hidden;border:1px solid var(--border)}
.topitem-bar-fill{height:100%;background:linear-gradient(90deg,var(--accent2),var(--accent));border-radius:6px;transition:width .5s ease}
.topitem-value{font-size:.82rem;color:var(--accent);font-weight:600;white-space:nowrap}
@media(max-width:600px){
  .stats-grid-2{grid-template-columns:1fr}
  .topitem-row{grid-template-columns:84px 1fr auto;gap:8px}
  .donut-wrap{gap:16px}
}

/* ══ DASHBOARD HEADER (with export button) ══ */
.dashboard-header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;flex-wrap:wrap}
@media(max-width:480px){
  .dashboard-header .btn{width:100%;justify-content:center}
}

/* ══ MULTI-USER: WIZARD, OPERATOR LOGIN, TEAM MANAGEMENT ══ */
.operator-badge{
  font-size:.7rem;font-weight:600;color:var(--accent);background:rgba(0,212,255,0.12);
  padding:2px 9px;border-radius:20px;margin-left:2px;white-space:nowrap;
}

.wizard-card{max-width:460px}
.wizard-progress{display:flex;justify-content:center;gap:8px;margin-bottom:22px}
.wizard-dot{width:8px;height:8px;border-radius:50%;background:var(--border2);transition:background .25s}
.wizard-dot.active{background:var(--accent)}
.wizard-step{display:none;text-align:left}
.wizard-step.active{display:block}
.wizard-step-title{font-family:var(--font-display);font-size:1.15rem;font-weight:700;color:var(--text);margin-bottom:6px;text-align:center}
.wizard-step-sub{font-size:.85rem;color:var(--text3);margin-bottom:20px;text-align:center;line-height:1.5}
.wizard-actions{display:flex;justify-content:space-between;align-items:center;margin-top:18px;gap:10px}

.logo-upload-row{display:flex;align-items:center;gap:14px}
.logo-preview{
  width:64px;height:64px;border-radius:12px;border:1.5px dashed var(--border2);
  display:flex;align-items:center;justify-content:center;overflow:hidden;flex-shrink:0;
  color:var(--text3);font-size:.72rem;background:var(--bg3);
}
.logo-preview img{width:100%;height:100%;object-fit:cover}

.operator-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(84px,1fr));gap:10px;margin-bottom:16px}
.operator-tile{
  display:flex;flex-direction:column;align-items:center;gap:6px;padding:12px 6px;
  border:1px solid var(--border);border-radius:12px;cursor:pointer;background:var(--bg3);
  transition:border-color .15s, transform .15s;
}
.operator-tile:hover{border-color:var(--accent);transform:translateY(-2px)}
.operator-tile-avatar{
  width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,var(--accent2),var(--accent));
  color:#04222c;font-weight:700;font-size:.85rem;display:flex;align-items:center;justify-content:center;
}
.operator-tile-name{font-size:.76rem;color:var(--text);text-align:center;line-height:1.2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}
.operator-tile-role{font-size:.68rem;color:var(--text3)}

.role-badge{
  display:inline-block;font-size:.68rem;font-weight:600;padding:1px 8px;border-radius:20px;
  text-transform:uppercase;letter-spacing:.03em;vertical-align:middle;margin-left:4px;
}
.role-badge.admin{background:rgba(0,212,255,0.14);color:var(--accent)}
.role-badge.staff{background:rgba(0,229,153,0.14);color:var(--green)}

.team-row{
  display:grid;grid-template-columns:1fr auto auto;gap:10px;align-items:center;
  background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:10px 12px;margin-bottom:8px;
}
.team-row-4{grid-template-columns:1fr auto auto auto}
.team-row.clickable-row{cursor:pointer;transition:border-color .15s, background .15s}
.team-row.clickable-row:hover{border-color:var(--accent2);background:var(--surface2)}
.team-row.editing{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}
.staff-form-title{font-size:.85rem;font-weight:600;color:var(--accent);margin-bottom:8px}
.staff-form-hint{font-size:.78rem;color:var(--text3);margin-top:10px}
@media(max-width:480px){
  .team-row,.team-row-4{grid-template-columns:1fr;text-align:left}
}

/* ══ SUBSCRIPTION / BILLING ══ */
.tier-badge{
  font-size:.68rem;font-weight:700;padding:2px 9px;border-radius:20px;margin-left:2px;
  white-space:nowrap;text-transform:uppercase;letter-spacing:.03em;cursor:pointer;
}
.tier-badge.tier-free{background:var(--bg3);color:var(--text3);border:1px solid var(--border2)}
.tier-badge.tier-business{background:rgba(0,212,255,0.14);color:var(--accent)}
.tier-badge.tier-pro{background:rgba(255,179,71,0.16);color:var(--orange)}

.lock-hint{
  font-size:.62rem;font-weight:700;background:rgba(255,179,71,0.18);color:var(--orange);
  padding:1px 6px;border-radius:20px;margin-left:6px;vertical-align:middle;
}

.billing-warning{
  background:rgba(255,77,109,0.1);border:1px solid rgba(255,77,109,0.3);color:var(--red);
  padding:10px 14px;border-radius:var(--radius-sm);font-size:.85rem;margin-bottom:16px;
}
.billing-trial{
  background:rgba(0,212,255,0.08);border:1px solid rgba(0,212,255,0.28);color:var(--text);
  padding:10px 14px;border-radius:var(--radius-sm);font-size:.85rem;margin-bottom:16px;
}
.billing-trial strong{color:var(--accent)}
.trial-offer{
  display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  background:var(--bg3);border:1px dashed var(--accent2);border-radius:var(--radius-sm);
  padding:14px 16px;margin-bottom:20px;font-size:.85rem;color:var(--text2);
}
@media(max-width:480px){ .trial-offer{flex-direction:column;align-items:stretch;text-align:center} }
.billing-usage{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:20px}
.billing-usage-item{
  flex:1;min-width:150px;background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:10px 14px;display:flex;justify-content:space-between;align-items:center;font-size:.82rem;color:var(--text2);
}
.billing-usage-item strong{color:var(--accent);font-family:var(--font-display)}

.plan-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px}
.plan-card{
  border:1px solid var(--border);border-radius:var(--radius);background:var(--bg3);
  padding:18px 16px;display:flex;flex-direction:column;gap:10px;
}
.plan-card.current{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}
.plan-card-name{font-family:var(--font-display);font-weight:700;font-size:1rem;color:var(--text)}
.plan-card-price{font-size:.85rem;color:var(--accent);font-weight:600}
.plan-card-features{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px;font-size:.8rem;color:var(--text2)}
.plan-card-current-badge{
  text-align:center;font-size:.78rem;font-weight:600;color:var(--accent);
  background:rgba(0,212,255,0.1);border-radius:20px;padding:6px;
}

/* ══ THEME TOGGLE ══ */
.nav-theme-toggle{
  background:var(--bg3);border:1px solid var(--border);border-radius:50%;
  width:32px;height:32px;font-size:.95rem;line-height:1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:border-color .15s, transform .15s;
}
.nav-theme-toggle:hover{border-color:var(--accent);transform:translateY(-1px)}

.theme-row{display:flex;align-items:center;justify-content:space-between;gap:14px}
.theme-row-label{font-size:.92rem;color:var(--text);font-weight:500}
.theme-row-sub{font-size:.8rem;color:var(--text3);margin-top:2px}

.theme-switch{position:relative;display:inline-flex;align-items:center;width:52px;height:28px;cursor:pointer;flex-shrink:0}
.theme-switch input{opacity:0;width:0;height:0;position:absolute}
.theme-switch-slider{
  position:absolute;inset:0;background:var(--bg3);border:1px solid var(--border2);
  border-radius:20px;transition:background .25s, border-color .25s;
}
.theme-switch-slider::before{
  content:'☀️';
  position:absolute;height:22px;width:22px;left:2px;top:2px;
  background:var(--surface);border-radius:50%;transition:transform .25s;
  display:flex;align-items:center;justify-content:center;font-size:11px;
  box-shadow:var(--shadow-sm);
}
.theme-switch input:checked + .theme-switch-slider{background:var(--accent-glow);border-color:var(--accent)}
.theme-switch input:checked + .theme-switch-slider::before{transform:translateX(24px);content:'🌙'}

/* ══ ABOUT MODAL ══ */
.about-modal-body{display:flex;flex-direction:column;align-items:center;text-align:center;gap:2px}
.about-logo{margin-bottom:10px}
.about-app-name{font-family:'Syne',sans-serif;font-size:1.15rem;font-weight:700;color:var(--text)}
.about-app-version{font-size:.82rem;color:var(--text3);margin-bottom:14px}
.about-divider{width:100%;height:1px;background:var(--border);margin-bottom:14px}
.about-row{display:flex;justify-content:space-between;width:100%;font-size:.86rem;padding:6px 0;gap:12px}
.about-row-label{color:var(--text3)}
.about-row-value{color:var(--text2);font-weight:500;text-align:right}
.about-row-value a{color:var(--accent);text-decoration:none}
.about-row-value a:hover{text-decoration:underline}
.about-copyright{margin-top:16px;font-size:.74rem;line-height:1.5;color:var(--text3)}
.about-links{margin-top:14px;font-size:.8rem}
.about-links a{color:var(--accent);text-decoration:none}
.about-links a:hover{text-decoration:underline}

/* ══ INVENTORY TRACKING ══ */
.catalog-item-card{margin-bottom:10px}
.catalog-item-card.low-stock .catalog-edit-row{border-color:var(--orange)}
.low-stock-badge{
  display:inline-block;font-size:.68rem;font-weight:700;color:var(--orange);
  background:rgba(255,179,71,0.14);padding:1px 8px;border-radius:20px;margin-left:6px;vertical-align:middle;
}
.inventory-toggle-mini{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:8px;cursor:pointer;
  background:var(--bg2);border:1px solid var(--border);font-size:.9rem;
  position:relative;
}
.inventory-toggle-mini input{position:absolute;opacity:0;width:100%;height:100%;margin:0;cursor:pointer}
.inventory-toggle-mini input:checked ~ span{filter:none;opacity:1}
.inventory-toggle-mini span{opacity:.35;filter:grayscale(1);transition:opacity .15s,filter .15s}
.catalog-stock-row{
  display:flex;gap:10px;align-items:flex-end;flex-wrap:wrap;
  background:var(--bg2);border:1px solid var(--border);border-top:none;
  border-radius:0 0 var(--radius-sm) var(--radius-sm);padding:10px 12px;margin-top:-1px;
}
.stock-field{display:flex;flex-direction:column;gap:4px}
.stock-field label{font-size:.68rem;text-transform:uppercase;letter-spacing:.03em;color:var(--text3);font-weight:600}
.stock-input{
  width:80px;padding:6px 8px;border-radius:6px;border:1px solid var(--border2);
  background:var(--bg3);color:var(--text);font-size:.85rem;
}
.low-stock-row{
  display:flex;justify-content:space-between;align-items:center;
  padding:9px 0;border-bottom:1px solid var(--border);font-size:.87rem;
}
.low-stock-row:last-child{border-bottom:none}
.low-stock-name{color:var(--text)}
.low-stock-qty{color:var(--orange);font-weight:600;font-size:.82rem}
.low-stock-qty.out{color:var(--red)}