:root {
  --brand: #7AB800;
  --brand-light: #ABED3A;
  --brand-mid: #669900;
  --brand-dark: #4D7300;
  --brand-glow: rgba(122,184,0,0.15);
  --bg-primary: #08090f;
  --bg-secondary: #0f1019;
  --bg-card: rgba(255,255,255,0.04);
  --bg-input: rgba(255,255,255,0.05);
  --border: rgba(255,255,255,0.07);
  --text-primary: #ffffff;
  --text-secondary: rgba(255,255,255,0.55);
  --text-tertiary: rgba(255,255,255,0.3);
  --green: #00d4aa;
  --red: #ff4d6a;
  --amber: #f59e0b;
  --success-bg: rgba(0,212,170,0.1);
  --danger-bg: rgba(255,77,106,0.1);
  --font-display: 'Bricolage Grotesque', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --font-mono: 'DM Mono', monospace;
  --spring: cubic-bezier(0.16, 1, 0.3, 1);
  --radius-sm: 8px; --radius-md: 14px; --radius-lg: 20px; --radius-xl: 28px;
}

* { margin:0; padding:0; box-sizing:border-box; -webkit-tap-highlight-color:transparent; }
html,body { height:100%; height:100dvh; overflow:hidden; }
body { font-family:var(--font-body); background:var(--bg-primary); color:var(--text-primary); display:flex; justify-content:center; -webkit-font-smoothing:antialiased; }
.app { width:100%; max-width:430px; height:100vh; height:100dvh; background:var(--bg-primary); display:flex; flex-direction:column; position:relative; overflow:hidden; }
.screen { display:none; flex:1; flex-direction:column; min-height:0; animation:screenIn .3s var(--spring) forwards; }
.screen.active { display:flex; }
@keyframes screenIn { from{opacity:0} to{opacity:1} }

/* ── LOGIN ── */
#screen-login { justify-content:center; padding:28px 24px; }
.login-logo { display:flex; flex-direction:column; align-items:center; gap:10px; margin-bottom:36px; }
.login-mark { width:56px; height:56px; border-radius:18px; background:linear-gradient(135deg,var(--brand),var(--brand-dark)); display:flex; align-items:center; justify-content:center; font-family:var(--font-display); font-weight:800; font-size:1.4rem; color:#fff; box-shadow:0 8px 24px rgba(122,184,0,.4); }
.login-title { font-family:var(--font-display); font-weight:800; font-size:1.2rem; }
.login-sub { font-size:.8rem; color:var(--text-tertiary); }
.input-label { display:block; font-size:.75rem; font-weight:600; color:var(--text-secondary); text-transform:uppercase; letter-spacing:.4px; margin-bottom:6px; }
.input-group { margin-bottom:16px; }
.input-f { width:100%; padding:15px 16px; border:1.5px solid var(--border); border-radius:var(--radius-md); font-family:var(--font-body); font-size:.95rem; color:var(--text-primary); background:var(--bg-input); outline:none; }
.input-f:focus { border-color:var(--brand); box-shadow:0 0 0 4px var(--brand-glow); }
.pw-wrap { position:relative; }
.pw-eye { position:absolute; right:14px; top:50%; transform:translateY(-50%); color:var(--text-tertiary); cursor:pointer; }
.btn-p { width:100%; padding:16px; border:none; border-radius:var(--radius-md); font-family:var(--font-body); font-size:1rem; font-weight:700; cursor:pointer; background:linear-gradient(135deg,var(--brand),var(--brand-mid)); color:#fff; box-shadow:0 4px 16px rgba(122,184,0,.35); transition:all .2s var(--spring); }
.btn-p:active { transform:scale(.97); }
.btn-p:disabled { opacity:.6; cursor:not-allowed; }
.login-err { background:var(--danger-bg); color:var(--red); border-radius:var(--radius-sm); padding:11px 14px; font-size:.85rem; font-weight:600; margin-bottom:16px; display:none; }
.login-foot { text-align:center; font-size:.75rem; color:var(--text-tertiary); margin-top:20px; }

/* ── TILL PICKER ── */
#screen-picker { padding:24px 20px; }
.picker-title { font-family:var(--font-display); font-weight:800; font-size:1.1rem; margin-bottom:4px; }
.picker-sub { font-size:.8rem; color:var(--text-tertiary); margin-bottom:20px; }
.till-card { background:var(--bg-card); border:1px solid var(--border); border-radius:var(--radius-lg); padding:18px; margin-bottom:12px; cursor:pointer; transition:all .15s; }
.till-card:active { transform:scale(.98); background:var(--bg-input); }
.till-card.suspended { opacity:.5; pointer-events:none; }
.till-label { font-weight:700; font-size:.95rem; }
.till-meta { font-size:.75rem; color:var(--text-tertiary); margin-top:4px; }
.till-stat { font-family:var(--font-mono); font-size:.8rem; color:var(--brand); margin-top:8px; }

/* ── HEADER (shared by main screens) ── */
.pos-header { display:flex; align-items:center; justify-content:space-between; padding:16px 18px; flex-shrink:0; }
.pos-header-title { font-family:var(--font-display); font-weight:800; font-size:1rem; }
.pos-header-sub { font-size:.72rem; color:var(--text-tertiary); }
.icon-btn { width:38px; height:38px; border-radius:var(--radius-md); border:1px solid var(--border); background:var(--bg-input); display:flex; align-items:center; justify-content:center; color:var(--text-secondary); cursor:pointer; font-size:1rem; }
.icon-btn:active { transform:scale(.92); }

/* ── CHARGE SCREEN ── */
#screen-charge { flex:1; min-height:0; }
.charge-display { text-align:center; padding:20px 20px 10px; }
.charge-label { font-size:.75rem; color:var(--text-tertiary); font-weight:600; text-transform:uppercase; letter-spacing:.5px; margin-bottom:8px; }
.charge-amount { font-family:var(--font-mono); font-size:2.6rem; font-weight:600; }
.pos-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:10px; padding:16px 18px; flex-shrink:0; }
.pos-key { height:60px; border-radius:var(--radius-md); background:var(--bg-input); border:1px solid var(--border); font-size:1.35rem; font-weight:600; color:var(--text-primary); display:flex; align-items:center; justify-content:center; cursor:pointer; font-family:var(--font-mono); }
.pos-key:active { transform:scale(.92); background:var(--brand-glow); }
.pos-key.clear { background:var(--danger-bg); color:var(--red); font-size:1rem; }
.charge-methods { display:flex; gap:8px; padding:0 18px 12px; flex-wrap:wrap; }
.method-chip { padding:7px 14px; border-radius:20px; border:1.5px solid var(--border); background:var(--bg-input); font-size:.78rem; font-weight:600; color:var(--text-secondary); cursor:pointer; }
.method-chip.active { background:var(--brand-glow); border-color:var(--brand); color:var(--brand); }
.charge-actions { padding:6px 18px 18px; margin-top:auto; }

/* ── QR MODAL ── */
.modal-overlay { position:fixed; inset:0; background:rgba(0,0,0,.65); backdrop-filter:blur(6px); z-index:500; display:none; align-items:flex-end; justify-content:center; }
.modal-overlay.open { display:flex; }
.modal-sheet { background:var(--bg-secondary); border-radius:var(--radius-xl) var(--radius-xl) 0 0; width:100%; max-width:430px; padding:8px 24px 32px; text-align:center; animation:slideUp .35s var(--spring); }
@keyframes slideUp { from{transform:translateY(100%)} to{transform:translateY(0)} }
.modal-handle { width:36px; height:4px; background:var(--border); border-radius:2px; margin:0 auto 18px; }
.qr-box { background:#fff; border-radius:var(--radius-lg); padding:18px; display:inline-flex; margin:14px 0; }
.qr-amount { font-family:var(--font-mono); font-size:1.6rem; font-weight:700; }
.qr-status { font-size:.85rem; color:var(--text-tertiary); margin:10px 0 18px; display:flex; align-items:center; justify-content:center; gap:8px; }
.spinner { width:14px; height:14px; border:2px solid var(--border); border-top-color:var(--brand); border-radius:50%; animation:spin .7s linear infinite; }
@keyframes spin { to{transform:rotate(360deg)} }
.qr-status.paid { color:var(--green); }

/* ── HISTORY ── */
#screen-history { flex:1; min-height:0; display:flex; flex-direction:column; }
.history-list { flex:1; overflow-y:auto; padding:0 18px 18px; -webkit-overflow-scrolling:touch; }
.tx-row { display:flex; align-items:center; gap:12px; padding:14px 0; border-bottom:1px solid var(--border); }
.tx-icon { width:38px; height:38px; border-radius:var(--radius-md); background:var(--success-bg); color:var(--green); display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.tx-info { flex:1; min-width:0; }
.tx-method { font-weight:600; font-size:.88rem; text-transform:capitalize; }
.tx-date { font-size:.72rem; color:var(--text-tertiary); }
.tx-amount { font-family:var(--font-mono); font-weight:700; font-size:.9rem; color:var(--green); flex-shrink:0; }
.empty-state { text-align:center; padding:60px 24px; color:var(--text-tertiary); }
.empty-state i { font-size:2rem; margin-bottom:12px; opacity:.5; }

/* ── BOTTOM NAV ── */
.bottom-nav { flex-shrink:0; display:flex; justify-content:space-around; align-items:center; padding:10px 0 calc(10px + env(safe-area-inset-bottom)); border-top:1px solid var(--border); background:var(--bg-secondary); }
.nav-link { display:flex; flex-direction:column; align-items:center; gap:3px; color:var(--text-tertiary); font-size:.65rem; font-weight:600; cursor:pointer; background:transparent; border:none; font-family:var(--font-body); padding:4px 20px; }
.nav-link i { font-size:1.1rem; }
.nav-link.active { color:var(--brand); }

/* ── TOAST ── */
.toast-el { position:fixed; bottom:90px; left:50%; transform:translateX(-50%); background:var(--bg-secondary); color:var(--text-primary); padding:11px 22px; border-radius:30px; font-weight:600; font-size:.82rem; z-index:9999; border:1px solid var(--border); box-shadow:0 8px 32px rgba(0,0,0,.3); animation:toastIn .3s var(--spring); white-space:nowrap; }
.toast-el.leaving { opacity:0; transition:opacity .2s; }
.toast-el.success { background:var(--green); color:#fff; }
.toast-el.error { background:var(--red); color:#fff; }
@keyframes toastIn { from{opacity:0;transform:translateX(-50%) translateY(10px)} to{opacity:1;transform:translateX(-50%) translateY(0)} }

.spinner-full { display:flex; align-items:center; justify-content:center; flex:1; }
.spinner-full .spinner { width:28px; height:28px; border-width:3px; }

/* ── RECEIPT / EOD MODAL ── */
.receipt-sheet { max-height:85dvh; overflow-y:auto; }
.receipt-doc { background:#fff; color:#111; border-radius:var(--radius-md); padding:22px 18px; font-family:var(--font-mono); font-size:.8rem; text-align:left; }
.receipt-doc .r-center { text-align:center; }
.receipt-doc .r-biz { font-family:var(--font-display); font-weight:800; font-size:1rem; margin-bottom:2px; }
.receipt-doc .r-till { font-size:.72rem; color:#555; margin-bottom:14px; }
.receipt-doc hr { border:none; border-top:1px dashed #bbb; margin:12px 0; }
.receipt-doc .r-row { display:flex; justify-content:space-between; padding:3px 0; }
.receipt-doc .r-row.total { font-weight:700; font-size:.95rem; border-top:1px solid #333; margin-top:6px; padding-top:8px; }
.receipt-doc .r-foot { text-align:center; font-size:.68rem; color:#777; margin-top:16px; }
.eod-table .r-row span:last-child { font-weight:600; }
.eod-date-picker { display:flex; align-items:center; gap:8px; margin-bottom:14px; justify-content:center; }
.eod-date-picker input { padding:8px 10px; border:1px solid var(--border); border-radius:var(--radius-sm); background:var(--bg-input); color:var(--text-primary); font-family:var(--font-body); }
.receipt-actions { display:flex; gap:10px; margin-top:16px; }
.receipt-actions .btn-p, .receipt-actions .btn-s { flex:1; justify-content:center; display:flex; align-items:center; gap:6px; }
.nfc-btn { display:none; align-items:center; justify-content:center; gap:8px; }

@media print {
  body * { visibility:hidden; }
  .app, .modal-overlay, .modal-overlay * { visibility:visible !important; }
  .modal-overlay { position:absolute; inset:0; background:#fff !important; backdrop-filter:none; display:block !important; }
  .modal-sheet { box-shadow:none; max-width:100%; padding:0; animation:none; }
  .modal-handle, .receipt-actions, .bottom-nav, .qr-box, .qr-status, #qr-link-btn, .icon-btn { display:none !important; }
  .receipt-doc { border:none; padding:0; }
}