:root{
  --bg:#070b12;
  --bg2:#0c1422;
  --panel:#111a2a;
  --panel2:#151f31;
  --ink:#f4f8fb;
  --muted:#91a1b8;
  --line:#243248;
  --teal:#19d3b0;
  --cyan:#38bdf8;
  --amber:#f7b731;
  --red:#ff5a68;
  --green:#4ade80;
  --violet:#a78bfa;
  --blue:#4f8cff;
  --shadow:0 18px 50px rgba(0,0,0,.32);
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family:Inter,Segoe UI,Arial,Helvetica,sans-serif;
  background:
    radial-gradient(circle at top left,rgba(25,211,176,.12),transparent 32%),
    linear-gradient(135deg,var(--bg),var(--bg2));
  color:var(--ink);
}
.hidden{display:none!important}

.login{
  min-height:100vh;
  display:grid;
  place-items:center;
  padding:20px;
}
.login-card{
  width:min(680px,100%);
  background:rgba(17,26,42,.88);
  border:1px solid rgba(56,189,248,.22);
  border-radius:8px;
  padding:28px;
  box-shadow:var(--shadow);
  backdrop-filter:blur(16px);
}
.login-logo,.brand{display:flex;align-items:center;gap:12px}
.login-card h1{margin:0;font-size:34px}
.login-card p{margin:10px 0 18px;color:var(--muted)}
.login-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.login-grid button,.pin-login{
  min-height:50px;
  border:1px solid rgba(25,211,176,.36);
  border-radius:8px;
  background:linear-gradient(135deg,#0f766e,#174ea6);
  color:#fff;
  font-weight:900;
  cursor:pointer;
}
.pin-input{
  width:100%;
  height:48px;
  border:1px solid var(--line);
  border-radius:8px;
  padding:0 12px;
  font:inherit;
  background:#0b1220;
  color:var(--ink);
  margin-bottom:10px;
}
.pin-login{width:100%;margin-bottom:10px}
.pin-error{color:var(--red);font-weight:900;min-height:20px}
.login-muted{font-size:12px;margin-top:8px!important}

.logo-mark{
  width:42px;
  height:42px;
  display:grid;
  place-items:center;
  border-radius:8px;
  background:
    linear-gradient(135deg,rgba(25,211,176,.95),rgba(79,140,255,.95));
  box-shadow:0 0 28px rgba(25,211,176,.28);
  position:relative;
  overflow:hidden;
  flex:0 0 auto;
}
.logo-mark:before,.logo-mark:after{
  content:"";
  position:absolute;
  border:2px solid rgba(255,255,255,.9);
  border-radius:4px;
}
.logo-mark:before{width:22px;height:22px;transform:rotate(45deg)}
.logo-mark:after{width:8px;height:28px}
.logo-mark span{
  width:5px;
  height:5px;
  border-radius:50%;
  background:#fff;
  z-index:1;
}

.app{display:grid;grid-template-columns:248px 1fr;min-height:100vh}
.side{
  background:rgba(7,11,18,.94);
  border-right:1px solid var(--line);
  padding:18px;
  position:sticky;
  top:0;
  height:100vh;
}
.brand{font-size:21px;font-weight:950;margin-bottom:8px}
.build-label{
  color:var(--muted);
  font-size:12px;
  font-weight:800;
  margin:0 0 18px 54px;
}
.nav{
  width:100%;
  min-height:44px;
  border:1px solid transparent;
  border-radius:8px;
  margin-bottom:8px;
  background:transparent;
  color:#cbd6e4;
  text-align:left;
  padding:0 12px;
  font-weight:850;
  cursor:pointer;
}
.nav:hover{background:#121c2e;border-color:#22334e}
.nav.active{
  background:linear-gradient(135deg,rgba(25,211,176,.22),rgba(79,140,255,.18));
  border-color:rgba(25,211,176,.45);
  color:#fff;
  box-shadow:inset 3px 0 0 var(--teal);
}

.main{padding:20px;min-width:0}
.top{
  display:flex;
  justify-content:space-between;
  gap:16px;
  align-items:center;
  margin-bottom:18px;
  padding:14px 16px;
  border:1px solid rgba(56,189,248,.16);
  background:rgba(17,26,42,.68);
  border-radius:8px;
  box-shadow:0 10px 28px rgba(0,0,0,.18);
  backdrop-filter:blur(14px);
}
.top h1{margin:0;font-size:30px}
.top p{margin:5px 0 0;color:var(--muted)}
.user{
  display:flex;
  align-items:center;
  gap:10px;
  background:#0b1220;
  border:1px solid var(--line);
  border-radius:8px;
  padding:10px 12px;
  font-weight:850;
  color:#dbeafe;
}
.user button{height:32px;border:0;border-radius:6px;background:var(--red);color:#fff;padding:0 10px;font-weight:850;cursor:pointer}

.screen{display:none}
.screen.active{display:block}
.layout{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(360px,.8fr);gap:16px}
.admin-layout{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.panel,.stat,.list-item,.ticket{
  background:linear-gradient(180deg,rgba(21,31,49,.95),rgba(13,20,33,.95));
  border:1px solid rgba(145,161,184,.2);
  border-radius:8px;
  box-shadow:0 12px 34px rgba(0,0,0,.22);
}
.panel{padding:16px}
.panel-head{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:14px}
.panel h2,.panel-head h2{margin:0 0 14px;font-size:20px}
.panel-head h2{margin:0}
.head-actions{display:flex;gap:8px;flex-wrap:wrap}

.small,.form button,.report-actions button{
  min-height:38px;
  border:1px solid rgba(56,189,248,.25);
  border-radius:7px;
  background:#16243a;
  color:#eaf2ff;
  padding:0 12px;
  font-weight:900;
  cursor:pointer;
}
.small:hover,.form button:hover,.report-actions button:hover{border-color:var(--cyan)}
.danger-btn,.danger-mini{background:#7f1d2d!important;border-color:rgba(255,90,104,.45)!important}
.send{background:#0f766e!important}
.pay{background:#2459c7!important}

.tables{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.table{
  min-height:110px;
  border:1px solid var(--line);
  border-radius:8px;
  padding:13px;
  background:#0c1422;
  cursor:pointer;
  position:relative;
  overflow:hidden;
}
.table:before{
  content:"";
  position:absolute;
  inset:0 auto 0 0;
  width:5px;
}
.table strong{display:block;font-size:20px;margin-bottom:10px}
.table.active{outline:2px solid var(--teal);box-shadow:0 0 0 4px rgba(25,211,176,.1)}
.free:before{background:var(--green)}
.open:before{background:var(--amber)}
.billing:before{background:var(--blue)}
.reserved:before{background:var(--violet)}

.tag{
  display:inline-flex;
  align-items:center;
  min-height:25px;
  padding:0 9px;
  border-radius:999px;
  font-size:12px;
  font-weight:950;
}
.green{background:rgba(74,222,128,.16);color:#86efac}
.yellow{background:rgba(247,183,49,.16);color:#fcd34d}
.blue{background:rgba(79,140,255,.16);color:#93c5fd}
.purple{background:rgba(167,139,250,.18);color:#c4b5fd}
.red{background:rgba(255,90,104,.16);color:#fda4af}

.empty{
  padding:28px;
  border:1px dashed #33445f;
  border-radius:8px;
  color:var(--muted);
  text-align:center;
  background:rgba(12,20,34,.55);
}
.notice{
  background:rgba(56,189,248,.12);
  border:1px solid rgba(56,189,248,.26);
  color:#bae6fd;
  border-radius:8px;
  padding:10px;
  margin-bottom:10px;
  font-weight:850;
}
.hint{margin-top:8px;color:var(--teal);font-weight:850}
.muted{color:var(--muted);font-size:13px}

.menu{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:14px}
.dish{
  border:1px solid var(--line);
  border-radius:8px;
  background:#0c1422;
  padding:12px;
  cursor:pointer;
  display:flex;
  justify-content:space-between;
  gap:8px;
  min-height:72px;
}
.dish:hover{border-color:var(--teal);box-shadow:0 0 0 3px rgba(25,211,176,.08)}
.dish.disabled{opacity:.45;cursor:not-allowed;background:#111827}
.dish span{color:var(--muted);font-size:13px}

.row{
  display:flex;
  justify-content:space-between;
  gap:10px;
  border-bottom:1px solid rgba(145,161,184,.16);
  padding:10px 0;
}
.row:last-child{border-bottom:0}
.order-line{align-items:center;display:grid;grid-template-columns:1fr auto auto}
.qty{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.qty button{height:31px!important;color:#fff;background:#213049;padding:0 9px;border:1px solid #34445f;border-radius:6px}
.total{font-size:22px;font-weight:950;border-top:2px solid var(--line);margin-top:12px;padding-top:14px}
.actions{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:10px;margin-top:14px}
.actions button,.row button,.ticket button,.modal-actions button{
  min-height:40px;
  border:0;
  border-radius:7px;
  font-weight:950;
  color:#fff;
  cursor:pointer;
}

.list{display:grid;gap:10px}
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.station{display:grid;gap:10px;align-content:start}
.station>h3{
  margin:0;
  background:linear-gradient(135deg,#102033,#17243a);
  border:1px solid var(--line);
  color:#fff;
  border-radius:8px;
  padding:12px;
}
.ticket,.list-item{padding:14px}
.ticket h3,.list-item h3{margin:10px 0 8px}
.ticket ul{margin:0 0 12px;padding-left:18px;color:#cbd5e1}
.item-ready{color:#86efac;font-weight:900}
.mini-btn{height:25px!important;border:0;border-radius:5px;background:#0f766e;color:#fff;font-weight:850;margin-left:6px}

.stats,.report-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.report-grid{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:14px}
.stat{padding:16px}
.stat b{display:block;font-size:29px;margin-bottom:4px;color:#fff}
.stat span{color:var(--muted)}

.form{display:grid;gap:10px;margin-bottom:14px}
.finance-form{grid-template-columns:1fr 160px 130px}
.form input,.form select,.modal-card input,.modal-card select,.head-actions input,.head-actions select{
  min-height:42px;
  border:1px solid var(--line);
  border-radius:7px;
  padding:0 10px;
  font:inherit;
  background:#0b1220;
  color:var(--ink);
}

.modal{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.62);
  display:grid;
  place-items:center;
  padding:18px;
  z-index:40;
}
.modal-card{
  width:min(460px,100%);
  max-height:92vh;
  overflow:auto;
  background:#101a2a;
  border:1px solid rgba(56,189,248,.24);
  border-radius:8px;
  padding:18px;
  box-shadow:var(--shadow);
}
.modal-card h2{margin:0 0 12px}
.modal-card label{display:block;margin:10px 0 5px;font-weight:850;color:#dbeafe}
.modal-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}
.split-box{display:grid;gap:8px}

.matrix-wrap{overflow:auto}
.matrix{width:100%;border-collapse:collapse;font-size:13px}
.matrix th,.matrix td{border:1px solid var(--line);padding:8px;text-align:center}
.matrix th{background:#0b1220;color:#fff}
.matrix td:first-child,.matrix th:first-child{text-align:left;font-weight:900}
.backup-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.mobile-menu{display:none!important}
.status-ok{color:#86efac}
.status-bad{color:var(--red)}
.pin-error{color:var(--red);font-weight:900;min-height:20px}
.hint{margin-top:6px;color:var(--teal);font-weight:800}

@media(max-width:1120px){
  .admin-layout,.stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tables{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media(max-width:900px){
  .app{display:block}
  .side{position:fixed;left:-270px;top:0;bottom:0;width:250px;z-index:30;transition:left .2s;height:100vh}
  .side.open{left:0}
  .mobile-menu{display:inline-flex!important;align-items:center}
  .layout,.cards,.report-grid,.finance-form{grid-template-columns:1fr}
  .tables,.menu{grid-template-columns:repeat(2,minmax(0,1fr))}
  .top{position:sticky;top:0;z-index:20}
  .user{width:100%;justify-content:space-between;flex-wrap:wrap}
}
@media(max-width:620px){
  .main,.side{padding:14px}
  .top{align-items:flex-start;flex-direction:column}
  .tables,.menu,.login-grid,.admin-layout,.stats,.backup-actions{grid-template-columns:1fr}
  .order-line{grid-template-columns:1fr;gap:8px}
  .login-card{padding:20px}
}

/* ── Phase Improvements CSS ── */

/* Phase tab navigation */
.phase-tabs{
  display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap;
}
.ptab{
  min-height:38px;border:1px solid rgba(56,189,248,.2);border-radius:8px;
  background:#16243a;color:#eaf2ff;padding:0 16px;font-weight:900;cursor:pointer;
  transition:background .15s,border-color .15s;
}
.ptab:hover{border-color:var(--cyan)}
.ptab.active{
  background:linear-gradient(135deg,rgba(25,211,176,.22),rgba(79,140,255,.18));
  border-color:rgba(25,211,176,.5);color:#fff;
}

/* Phase stats bar */
.ph-stats{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(110px,1fr));
  gap:12px;
  margin-bottom:14px;
}
.ph-stat{
  background:linear-gradient(180deg,rgba(21,31,49,.95),rgba(13,20,33,.95));
  border:1px solid rgba(145,161,184,.18);
  border-radius:10px;
  padding:14px 12px;
  text-align:center;
}
.ph-stat b{display:block;font-size:20px;font-weight:950;color:#fff;margin-bottom:4px}
.ph-stat span{font-size:12px;color:var(--muted);font-weight:700}
.red-stat b{color:var(--red)!important}

/* Inventory forms */
.inv-form{grid-template-columns:2fr 1fr 1fr 1fr 1fr 1fr 1fr auto!important}
.sup-form{grid-template-columns:1fr 1fr 1fr 1fr 1fr 1fr auto!important}

/* Cashbook two-column layout */
.cb-cols{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* List items extra spacing */
.list-item+.list-item{margin-top:0}

/* Leaderboard rank styling */
.rank-gold{border-left:3px solid var(--amber)!important}
.rank-silver{border-left:3px solid #94a3b8!important}
.rank-bronze{border-left:3px solid var(--teal)!important}

@media(max-width:900px){
  .inv-form,.sup-form{grid-template-columns:1fr 1fr!important}
  .cb-cols{grid-template-columns:1fr}
  .ph-stats{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:580px){
  .phase-tabs{gap:6px}
  .ptab{padding:0 10px;font-size:13px}
  .ph-stats{grid-template-columns:repeat(2,1fr)}
  .inv-form,.sup-form{grid-template-columns:1fr!important}
}

/* ── Phase 5-7 CSS ── */

/* CSS Bar Charts (Task 1.1) */
.bar-chart{display:flex;align-items:flex-end;gap:8px;height:160px;padding:0 0 8px;overflow-x:auto;border-bottom:1px solid var(--line)}
.bar-col{display:flex;flex-direction:column;align-items:center;flex:1;min-width:36px}
.bar-fill{width:100%;background:var(--blue);border-radius:4px 4px 0 0;transition:height .3s ease;min-height:0}
.bar-label{font-size:11px;color:var(--muted);margin-top:6px;white-space:nowrap;text-align:center}
.bar-value{font-size:11px;color:var(--ink);font-weight:850;margin-top:2px;white-space:nowrap;text-align:center}

/* Toast Notifications (Task 12.2) */
#toastContainer{position:fixed;top:16px;right:16px;z-index:50;display:flex;flex-direction:column;gap:10px;pointer-events:none;width:min(340px,calc(100vw - 32px))}
.toast{background:linear-gradient(135deg,rgba(21,31,49,.98),rgba(13,20,33,.98));border:1px solid rgba(145,161,184,.3);border-radius:8px;padding:12px 36px 12px 14px;color:var(--ink);font-weight:850;position:relative;pointer-events:all;animation:toastIn .2s ease;box-shadow:0 8px 24px rgba(0,0,0,.3)}
.toast-warn{border-left:3px solid var(--amber)}
.toast-info{border-left:3px solid var(--teal)}
.toast-close{position:absolute;top:8px;right:8px;background:transparent;border:0;color:var(--muted);cursor:pointer;font-size:14px;line-height:1;padding:2px 6px}
.toast-close:hover{color:var(--ink)}
@keyframes toastIn{from{opacity:0;transform:translateX(24px)}to{opacity:1;transform:translateX(0)}}

/* Dashboard KPI Cards (Task 14.1) */
.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:18px}
.kpi-card{background:linear-gradient(180deg,rgba(21,31,49,.95),rgba(13,20,33,.95));border:1px solid rgba(145,161,184,.2);border-radius:10px;padding:18px 14px;text-align:center}
.kpi-card b{display:block;font-size:26px;font-weight:950;color:#fff;margin-bottom:6px}
.kpi-card span{font-size:12px;color:var(--muted);font-weight:700}
.kpi-card.kpi-alert b{color:var(--red)}
.kpi-card.kpi-ok b{color:var(--green)}

/* GST Tables (Task 18.2) */
.gst-table{width:100%;border-collapse:collapse;font-size:13px;margin-top:10px;overflow-x:auto}
.gst-table th,.gst-table td{border:1px solid var(--line);padding:8px 10px;text-align:right}
.gst-table th:first-child,.gst-table td:first-child{text-align:left}
.gst-table th{background:#0b1220;color:#fff;font-weight:950}
.gst-table tr:last-child td{font-weight:950;border-top:2px solid var(--line)}
.gst-surplus{color:var(--green)!important;font-weight:950}
.gst-payable{color:var(--red)!important;font-weight:950}
.gst-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-bottom:16px}
.gst-panel{background:linear-gradient(180deg,rgba(21,31,49,.95),rgba(13,20,33,.95));border:1px solid rgba(145,161,184,.2);border-radius:8px;padding:16px}
.gst-panel h3{margin:0 0 12px;font-size:16px}
.table-wrap{overflow-x:auto}

/* Demo Banner Mobile (Task 15.2) */
@media(max-width:620px){.demo-banner .demo-desc{display:none}}

/* Sidebar Overlay (Task 15.2) */
.side-overlay{display:none;position:fixed;inset:0;z-index:29;background:rgba(0,0,0,.45)}
.side-overlay.visible{display:block}

/* Report tab containers */
.report-tab-content{margin-top:14px}

@media(max-width:900px){
  .gst-grid{grid-template-columns:1fr}
}
@media(max-width:620px){
  .bar-chart{height:120px}
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
}

/* ── Table Floor Groups & Improved Order Panel ── */

/* Section grouping on table floor */
.section-group{margin-bottom:18px}
.section-label{
  font-size:13px;font-weight:950;color:var(--cyan);
  text-transform:uppercase;letter-spacing:.8px;
  padding:6px 0 8px;
  border-bottom:1px solid rgba(56,189,248,.18);
  margin-bottom:10px;
}
.section-tables{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(110px,1fr));
  gap:10px;
}
/* Make order panel scrollable independently */
.order-panel{
  max-height:calc(100vh - 140px);
  overflow-y:auto;
  display:flex;
  flex-direction:column;
}
/* Menu station grouping */
.menu-station-group{margin-bottom:14px}
.menu-station-label{
  font-size:12px;font-weight:950;color:var(--muted);
  text-transform:uppercase;letter-spacing:.6px;
  padding:4px 0 6px;
  border-bottom:1px solid var(--line);
  margin-bottom:8px;
}
/* Qty buttons row in order */
.qty button{min-width:30px;height:30px!important}
.qty span{display:flex;align-items:center}
/* Table card seats info */
.table .muted{margin-top:2px}

@media(max-width:900px){
  .section-tables{grid-template-columns:repeat(3,minmax(0,1fr))}
  .order-panel{max-height:none}
}
@media(max-width:620px){
  .section-tables{grid-template-columns:repeat(2,minmax(0,1fr))}
}