:root{--primary: #4f46e5;--primary-hover: #4338ca;--secondary: #10b981;--secondary-hover: #059669;--bg-color: #f8fafc;--bg-card: #ffffff;--text-main: #0f172a;--text-muted: #64748b;--border: #e2e8f0;--radius: 12px;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--top-control-height: 40px;--top-control-radius: 14px}[data-theme=dark]{--primary: #8b9bff;--primary-hover: #7285ff;--secondary: #34d399;--secondary-hover: #10b981;--bg-color: #0f172a;--bg-card: #111827;--text-main: #e5e7eb;--text-muted: #94a3b8;--border: #27344a;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .3);--shadow-md: 0 4px 8px -2px rgb(0 0 0 / .35);--shadow-lg: 0 12px 22px -8px rgb(0 0 0 / .45)}*{box-sizing:border-box;margin:0;padding:0;font-family:Inter,system-ui,-apple-system,sans-serif}body{background-color:var(--bg-color);color:var(--text-main);min-height:100dvh;overflow:auto}#root{min-height:100dvh;display:flex}h1,h2,h3{font-weight:700}h1{font-size:1.5rem}h2{font-size:1.25rem}p{font-size:.875rem;color:var(--text-muted)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1rem;font-weight:500;border-radius:var(--radius);border:none;cursor:pointer;transition:all .2s ease-in-out;font-size:.875rem}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px)}.btn-success{background:var(--secondary);color:#fff}.btn-success:hover{background:var(--secondary-hover)}.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text-main)}.btn-outline:hover{background:var(--bg-color)}.btn-icon{padding:.5rem;border-radius:50%}.lang-switcher{position:relative}.lang-trigger{min-width:82px;height:var(--top-control-height);padding:0 .62rem;border-radius:var(--top-control-radius);border:1px solid var(--border);background:var(--bg-card);color:var(--text-main);display:inline-flex;align-items:center;gap:.45rem;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease}.lang-trigger:hover{border-color:color-mix(in srgb,var(--primary) 45%,var(--border))}.lang-trigger:focus-visible{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #4f46e533}.lang-current{line-height:1;min-width:20px;text-align:center}.lang-caret{color:var(--text-muted);transition:transform .2s ease}.lang-caret-open{transform:rotate(180deg)}.lang-menu{position:absolute;top:calc(100% + .45rem);right:0;width:178px;border-radius:12px;border:1px solid var(--border);background:var(--bg-card);box-shadow:var(--shadow-lg);padding:.4rem;z-index:40}.lang-option{width:100%;border:none;border-radius:9px;background:transparent;color:var(--text-main);display:flex;align-items:center;justify-content:space-between;gap:.75rem;padding:.55rem .6rem;cursor:pointer;transition:background .16s ease,color .16s ease}.lang-option:hover{background:color-mix(in srgb,var(--primary) 12%,transparent)}.lang-option-active{background:var(--primary);color:#fff}.lang-option-short{font-size:.95rem;font-weight:700}.lang-option-label{font-size:.84rem;opacity:.95}[data-theme=dark] .lang-trigger{background:#0b1324;border-color:#314158;color:#e2e8f0}[data-theme=dark] .lang-menu{background:#0b1324;border-color:#314158}[data-theme=dark] .lang-option{color:#e2e8f0}[data-theme=dark] .lang-option:hover{background:#8b9bff38}.input{width:100%;padding:.75rem 1rem;border-radius:var(--radius);border:1px solid var(--border);outline:none;font-size:1rem;transition:border-color .2s}.input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #4f46e51a}.app-container{display:flex;min-height:100dvh;height:100%;width:100%}.main-content{flex:1;min-width:0;min-height:0;display:flex;flex-direction:column;padding:1.5rem;overflow-y:auto}.sidebar{width:min(420px,36vw);min-width:340px;max-width:420px;min-height:0;background:var(--bg-card);border-left:1px solid var(--border);display:flex;flex-direction:column;box-shadow:var(--shadow-md);z-index:10}.top-nav{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap;margin-bottom:1.5rem;background:var(--bg-card);padding:1rem 1.5rem;border-radius:var(--radius);box-shadow:var(--shadow-sm)}.top-nav-actions{display:flex;gap:.75rem;align-items:stretch;flex-wrap:wrap;justify-content:flex-end}.top-control{height:var(--top-control-height);border-radius:var(--top-control-radius);padding:0 .85rem;font-size:1rem;font-weight:600}.top-control-icon{width:var(--top-control-height);padding:0}.offline-badge{background:#fef08a;color:#854d0e;border:1px solid #eab308}.online-badge{background:#dcfce7;color:#166534;border:1px solid #22c55e}.status-chip{display:inline-flex;align-items:center;justify-content:center;gap:.45rem;height:var(--top-control-height);border-radius:var(--top-control-radius);padding:0 .9rem;font-size:1rem;font-weight:600;white-space:nowrap}[data-theme=dark] .online-badge{background:#0f3d2d;color:#9aebc3}[data-theme=dark] .offline-badge{background:#4f3f15;color:#fde68a}.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1.25rem;padding-bottom:2rem}.product-card{background:var(--bg-card);border-radius:var(--radius);padding:1rem;cursor:pointer;border:1px solid transparent;box-shadow:var(--shadow-sm);transition:all .2s;display:flex;flex-direction:column;align-items:center;text-align:center}.product-card:hover{border-color:var(--primary);box-shadow:var(--shadow-md);transform:translateY(-2px)}.product-image{width:120px;height:120px;object-fit:cover;border-radius:50%;margin-bottom:1rem}.product-price{color:var(--primary);font-weight:700;margin-top:.5rem}.login-screen{display:flex;align-items:center;justify-content:center;min-height:100dvh;width:100%;padding:1rem;background:radial-gradient(circle at 15% 20%,#4f46e524,#4f46e500 38%),radial-gradient(circle at 85% 80%,#10b9811f,#10b98100 42%),linear-gradient(160deg,#f8fafc,#e2e8f0)}[data-theme=dark] .login-screen{background:radial-gradient(circle at 15% 20%,#7285ff47,#7285ff00 42%),radial-gradient(circle at 85% 80%,#34d39938,#34d39900 45%),linear-gradient(160deg,#020617,#0f172a 52%,#111827)}.login-card{background:var(--bg-card);padding:2.5rem;border-radius:20px;box-shadow:var(--shadow-lg);width:100%;max-width:400px;text-align:center}.login-top-actions{display:flex;justify-content:flex-end;align-items:center;gap:.5rem;margin-bottom:1rem}.login-logo{width:86px;height:86px;margin-bottom:.8rem}.cashier-select{margin-top:1.5rem;display:flex;flex-direction:column;gap:1rem}@media print{body{background:#fff;color:#000}}.receipt-modal{display:none}.cart-header{padding:1.5rem;border-bottom:1px solid var(--border);flex-shrink:0}.cart-clear-btn{width:46px;height:46px;border:1px solid #ef4444;color:#ef4444;background:#ef44441a;border-radius:9999px;display:inline-flex;align-items:center;justify-content:center;transition:all .2s ease}.cart-clear-btn:hover{color:#fff;background:#ef4444;transform:translateY(-1px)}.cart-body{flex:1;min-height:0;overflow-y:auto;padding:1.5rem;display:flex;flex-direction:column;gap:1rem}.cart-footer{padding:1.5rem;border-top:1px solid var(--border);background:var(--bg-card);flex-shrink:0}.receipt-settings{border:1px solid var(--border);border-radius:var(--radius);padding:.75rem;margin-bottom:1rem;background:var(--bg-color)}.receipt-settings-title{font-size:.8rem;font-weight:700;margin-bottom:.5rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.3px}.receipt-setting-row{display:flex;align-items:center;justify-content:space-between;gap:.75rem;font-size:.85rem;margin-bottom:.5rem}.receipt-setting-row:last-child{margin-bottom:0}.receipt-size-select{border:1px solid var(--border);background:var(--bg-card);color:var(--text-main);border-radius:8px;padding:.35rem .5rem}.receipt-checkbox-row input{width:16px;height:16px}@media(max-width:1100px){.sidebar{min-width:320px;width:min(380px,42vw)}.product-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}}@media(max-width:920px){.app-container{flex-direction:column;min-height:100dvh}.main-content{min-height:58dvh}.sidebar{width:100%;max-width:none;min-width:0;border-left:none;border-top:1px solid var(--border)}.cart-body{max-height:42dvh}}.cart-item{display:flex;justify-content:space-between;align-items:flex-start;gap:.75rem;padding-bottom:1rem;border-bottom:1px dashed var(--border)}.qty-control{display:flex;align-items:center;gap:.5rem;background:var(--bg-color);border:1px solid var(--border);padding:.25rem;border-radius:9999px}.qty-btn{background:var(--bg-card);border:1px solid var(--border);color:var(--text-main);width:28px;height:28px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease}.qty-btn:hover{border-color:var(--primary);color:var(--primary)}[data-theme=dark] .qty-btn{background:#0b1324;border-color:#314158;color:#e2e8f0}[data-theme=dark] .qty-control{background:#0b1324;border-color:#314158}.receipt-preview{margin:1rem 1.5rem 1.5rem;padding:1rem;border:1px dashed var(--border);border-radius:10px;background:var(--bg-card);font-family:Courier New,Courier,monospace;font-size:.95rem;line-height:1.55}.receipt-head{text-align:center;margin-bottom:.75rem}.receipt-head h3{margin-bottom:.35rem}.receipt-head p,.receipt-separator{margin:0;letter-spacing:.5px}.receipt-row{display:flex;justify-content:space-between;gap:.75rem;margin-bottom:.35rem}.receipt-row span:first-child{flex:1}.receipt-total-row{display:flex;justify-content:space-between;font-weight:700;margin-top:.7rem}.receipt-thanks{text-align:center;margin-top:1rem}