/* ===== LIGHT THEME (default) ===== */
:root{
  --c-bg:#F8F9FA; --c-surface:#FFFFFF; --c-text:#1A1A1A;
  --c-amber:#F5A623; --c-green:#00C853; --c-red:#E53935;
  --c-border:#E2E4E8; --c-border-light:#F0F1F3;
  --c-text-muted:#6B7280; --c-text-dim:#9BA1AA;
  --c-hover-bg:rgba(0,0,0,.04);
  --c-overlay:rgba(0,0,0,.5);
  --c-surface-glass:rgba(255,255,255,.88);
  --c-nav-glass:rgba(255,255,255,.92);
  --c-amber-light:rgba(245,166,35,.12); --c-green-light:rgba(0,200,83,.10);
  --radius-xs:6px; --radius-sm:10px; --radius-md:14px; --radius-lg:20px; --radius-xl:28px;
  --shadow-xs:0 1px 2px rgba(0,0,0,.04); --shadow-sm:0 2px 8px rgba(0,0,0,.06);
  --shadow-md:0 6px 20px rgba(0,0,0,.08); --shadow-lg:0 12px 36px rgba(0,0,0,.10);
  --shadow-amber:0 4px 20px rgba(245,166,35,.25);
  --max-w:100%; --bottom-nav-h:64px; --header-h:52px;
  --transition:0.2s cubic-bezier(.4,0,.2,1);
  --font:'Poppins',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  --font-heading:'Poppins',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
}
/* ===== DARK THEME ===== */
[data-theme="dark"]{
  --c-bg:#14171D; --c-surface:#1A1D24; --c-text:#F0F1F3;
  --c-amber:#F5A623; --c-green:#4ADE80; --c-red:#F87171;
  --c-border:#272C35; --c-border-light:#1E2228;
  --c-text-muted:#9BA1AA; --c-text-dim:#6B7280;
  --c-hover-bg:rgba(255,255,255,.06);
  --c-overlay:rgba(0,0,0,.7);
  --c-surface-glass:rgba(26,29,36,.88);
  --c-nav-glass:rgba(26,29,36,.92);
  --c-amber-light:rgba(245,166,35,.18); --c-green-light:rgba(74,222,128,.15);
  --shadow-xs:0 1px 2px rgba(0,0,0,.20); --shadow-sm:0 2px 8px rgba(0,0,0,.30);
  --shadow-md:0 6px 20px rgba(0,0,0,.35); --shadow-lg:0 12px 36px rgba(0,0,0,.40);
  --shadow-amber:0 4px 20px rgba(245,166,35,.35);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:var(--font);background:var(--c-bg);color:var(--c-text);line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3{font-family:var(--font-heading);font-weight:800;letter-spacing:-0.025em;line-height:1.15}
h1{font-size:clamp(1.6rem,5vw,2.2rem)}h2{font-size:1.25rem}h3{font-size:1.05rem}
p{color:var(--c-text-muted);font-size:0.88rem;line-height:1.6}
input,select,textarea,button{font-family:inherit;font-size:0.9rem}
input,select,textarea{width:100%;padding:11px 14px;border:1.5px solid var(--c-border);border-radius:var(--radius-sm);background:var(--c-surface);color:var(--c-text);-webkit-appearance:none;transition:border-color var(--transition),box-shadow var(--transition)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--c-amber);box-shadow:0 0 0 4px var(--c-amber-light)}
textarea{resize:vertical;min-height:80px}
label{display:block;font-size:0.76rem;font-weight:700;color:var(--c-text-muted);margin-bottom:5px;text-transform:uppercase;letter-spacing:0.04em}
.form-group{margin-bottom:18px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;min-height:48px;border-radius:999px;font-weight:700;font-size:0.95rem;border:none;cursor:pointer;text-decoration:none;transition:all var(--transition);position:relative;overflow:hidden;white-space:normal;word-break:break-word;-webkit-tap-highlight-color:transparent;user-select:none}
.btn::after{content:'';position:absolute;inset:0;background:rgba(255,255,255,0);transition:background var(--transition)}
.btn:active::after{background:rgba(0,0,0,.08)}
.btn--primary{background:var(--c-amber);color:var(--c-text);box-shadow:0 4px 16px rgba(245,166,35,.3)}
.btn--primary:hover{box-shadow:0 6px 24px rgba(245,166,35,.45);transform:translateY(-2px)}
.btn--dark{background:var(--c-text);color:var(--c-surface);box-shadow:var(--shadow-sm)}
.btn--dark:hover{box-shadow:var(--shadow-md);transform:translateY(-1px)}
.btn--outline{border:2px solid var(--c-text-dim);background:transparent;color:var(--c-text)}
.btn--outline:hover{border-color:var(--c-amber);color:var(--c-amber)}
.btn--danger{background:var(--c-red);color:var(--c-surface);box-shadow:0 2px 10px rgba(229,57,53,.25)}
.btn--success{background:#25D366;color:var(--c-surface);box-shadow:0 4px 16px rgba(37,211,102,.3)}
.btn--success:hover{box-shadow:0 6px 24px rgba(37,211,102,.45);transform:translateY(-2px)}
.btn--sm{padding:8px 18px;min-height:40px;font-size:0.82rem;white-space:nowrap}
.btn--block{width:100%}
@media(max-width:400px){.btn{padding:14px 18px;font-size:0.88rem}}
@media(max-width:360px){.btn{padding:12px 14px;font-size:0.82rem}}
.btn:disabled{opacity:.5;pointer-events:none}
.btn--white{background:var(--c-surface);color:var(--c-text);box-shadow:var(--shadow-sm)}
.btn--white:hover{box-shadow:var(--shadow-md)}

/* App Shell 鈥?mobile-first: full width */
.app-shell{max-width:var(--max-w);margin:0 auto;min-height:100vh;padding-top:var(--header-h);padding-bottom:calc(var(--bottom-nav-h) + env(safe-area-inset-bottom,0px))}
/* Tablet+ 鈥?constrain width for readability */
@media(min-width:481px){.app-shell{max-width:480px;border-left:1px solid var(--c-border-light);border-right:1px solid var(--c-border-light)}}
@media(min-width:769px){body{background:var(--c-text)}.app-shell{box-shadow:0 0 40px rgba(0,0,0,.08);margin:0 auto;border-left:1px solid var(--c-border);border-right:1px solid var(--c-border);border-radius:0 0 12px 12px}}
.app-header{position:fixed;top:0;left:0;right:0;z-index:100;background:var(--c-surface-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--c-border-light);padding:0 16px;display:flex;align-items:center;height:var(--header-h);gap:12px}
@media(min-width:481px){.app-header{left:50%;right:auto;transform:translateX(-50%);max-width:480px;border-radius:0 0 12px 12px;box-shadow:0 2px 12px rgba(0,0,0,.04)}}
@media(min-width:769px){.app-header{box-shadow:0 4px 20px rgba(0,0,0,.06)}}
.app-header__title{font-family:var(--font-heading);font-weight:800;font-size:1.05rem;flex:1;letter-spacing:-0.02em}
.app-header__back{font-size:1.2rem;background:none;border:none;cursor:pointer;padding:4px 8px;color:var(--c-text);border-radius:var(--radius-xs)}
.app-header__back:active{background:var(--c-border-light)}
.app-page{padding:16px;display:none;animation:fadeIn .25s ease;min-height:calc(100vh - var(--header-h) - var(--bottom-nav-h))}
.app-page--active{display:block;overflow-y:auto;-webkit-overflow-scrolling:touch}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}

/* Bottom Nav */
.bottom-nav{position:fixed;bottom:0;left:0;right:0;width:100%;background:var(--c-nav-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-top:1px solid var(--c-border-light);display:flex;height:var(--bottom-nav-h);z-index:100;padding-bottom:env(safe-area-inset-bottom,0)}
@media(min-width:481px){.bottom-nav{left:50%;right:auto;transform:translateX(-50%);max-width:480px}}
@media(min-width:769px){.bottom-nav{border-radius:12px 12px 0 0;box-shadow:0 -4px 20px rgba(0,0,0,.06);bottom:8px}}
.bottom-nav__btn{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;border:none;background:none;font-size:0.62rem;font-weight:700;color:var(--c-text-dim);cursor:pointer;gap:3px;transition:color var(--transition);-webkit-tap-highlight-color:transparent;position:relative}
.bottom-nav__btn--active{color:var(--c-amber)}
.bottom-nav__btn .icon{font-size:1.35rem;transition:transform var(--transition)}
.bottom-nav__btn--active .icon{transform:scale(1.1)}
.bottom-nav__btn::before{content:'';position:absolute;top:0;left:50%;transform:translateX(-50%) translateY(-3px);width:0;height:3px;background:var(--c-amber);border-radius:0 0 3px 3px;transition:width var(--transition)}
.bottom-nav__btn--active::before{width:24px}

/* Dashboard */
.dash-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:18px}
.dash-card{background:var(--c-surface);border-radius:var(--radius-md);padding:18px 14px;border:1px solid var(--c-border-light);box-shadow:var(--shadow-xs);transition:box-shadow var(--transition)}
.dash-card:hover{box-shadow:var(--shadow-sm)}
.dash-card__label{font-size:0.68rem;color:var(--c-text-dim);font-weight:700;text-transform:uppercase;margin-bottom:6px;letter-spacing:0.05em}
.dash-card__value{font-size:1.5rem;font-weight:800;color:var(--c-text);line-height:1}
.dash-card__value--amber{color:var(--c-amber)}
.dash-card__value--green{color:var(--c-green)}
.dash-alert{background:#FFFBEB;border:1px solid #FDE68A;border-radius:var(--radius-md);padding:14px;margin-bottom:10px;font-size:0.83rem}
.dash-alert__title{font-weight:700;color:#B45309;margin-bottom:3px}
.dash-section{margin-bottom:20px}
.dash-section__title{font-size:0.74rem;font-weight:700;color:var(--c-text-dim);text-transform:uppercase;margin-bottom:10px;letter-spacing:0.06em}

/* Lists */
.list-item{display:flex;align-items:center;gap:14px;padding:14px;background:var(--c-surface);border-radius:var(--radius-md);border:1px solid var(--c-border-light);margin-bottom:8px;cursor:pointer;transition:all var(--transition);box-shadow:var(--shadow-xs)}
.list-item:active{box-shadow:var(--shadow-sm);transform:scale(.985)}
.list-item__icon{font-size:1.6rem;width:40px;text-align:center;flex-shrink:0}
.list-item__body{flex:1;min-width:0}
.list-item__title{font-weight:700;font-size:0.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.list-item__sub{font-size:0.76rem;color:var(--c-text-dim);margin-top:1px}
.list-item__trail{font-size:0.92rem;font-weight:700;text-align:right;flex-shrink:0;min-width:60px}
.list-item__trail--amber{color:var(--c-amber)}.list-item__trail--red{color:var(--c-red)}.list-item__trail--green{color:var(--c-green)}
.list-empty{text-align:center;padding:48px 20px;color:var(--c-text-dim)}
.list-empty__icon{font-size:3.5rem;margin-bottom:14px;opacity:.7}

/* Search bar */
.search-bar{display:flex;gap:8px;margin-bottom:14px}
.search-bar input{flex:1}
.search-bar select{width:auto;min-width:110px}

/* Chips */
.chip-row{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}
.chip{padding:6px 14px;border-radius:999px;font-size:0.74rem;font-weight:700;border:1.5px solid var(--c-border);background:var(--c-surface);cursor:pointer;white-space:nowrap;transition:all var(--transition)}
.chip--active{background:var(--c-amber);color:var(--c-text);border-color:var(--c-amber);box-shadow:var(--shadow-amber)}
.chip--new{background:var(--c-green);color:var(--c-surface);border-color:var(--c-green);box-shadow:0 2px 12px rgba(0,200,83,.3)}
.chip--hist{background:var(--c-amber);color:var(--c-text);border-color:var(--c-amber);box-shadow:var(--shadow-amber)}

/* Sale type toggle */
.sale-type-toggle{display:flex;gap:0;background:var(--c-border-light);border-radius:999px;padding:3px;margin-bottom:14px}
.sale-type-toggle button{flex:1;padding:10px 0;border-radius:999px;border:none;background:none;font-size:0.85rem;font-weight:700;cursor:pointer;color:var(--c-text-muted);transition:all var(--transition)}
.sale-type-toggle button.active{background:var(--c-surface);color:var(--c-text);box-shadow:var(--shadow-sm)}
.sale-type-toggle button.active.cash-active{background:var(--c-green);color:var(--c-surface);box-shadow:0 2px 12px rgba(0,200,83,.3)}
.sale-type-toggle button.active.credit-active{background:var(--c-amber);color:var(--c-text);box-shadow:var(--shadow-amber)}
/* Payment method toggle */
.payment-method-toggle{display:flex;gap:6px;margin-bottom:14px;flex-wrap:wrap}
.payment-method-toggle button{flex:1;min-width:80px;padding:8px 6px;border-radius:999px;border:1px solid var(--c-border);background:var(--c-surface);font-size:0.78rem;font-weight:600;cursor:pointer;color:var(--c-text-muted);transition:all var(--transition)}
.payment-method-toggle button.active{background:var(--c-green);color:var(--c-surface);border-color:var(--c-green);box-shadow:0 2px 8px rgba(0,200,83,.2)}

/* Product card */
.cust-sales-group{margin-bottom:12px;border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--c-border-light);box-shadow:var(--shadow-xs)}
.cust-sales-group .list-item{border-radius:0;margin-bottom:0;border:none;border-bottom:1px solid var(--c-bg)}
.cust-sales-group .cust-sales-detail .list-item{padding-left:28px;background:var(--c-bg)}
.cust-sales-detail .list-item__title{font-size:0.82rem}
.cust-sales-detail .list-item__sub{font-size:0.7rem}
.prod-card{background:var(--c-surface);border-radius:var(--radius-md);border:1px solid var(--c-border-light);overflow:hidden;margin-bottom:12px;box-shadow:var(--shadow-xs);transition:all var(--transition);cursor:pointer}
.prod-card:active{box-shadow:var(--shadow-md);transform:scale(.985)}
.prod-card__img{width:100%;height:150px;background:var(--c-border-light);display:flex;align-items:center;justify-content:center;font-size:3rem;overflow:hidden}
.prod-card__img img{width:100%;height:100%;object-fit:cover}
.prod-card__body{padding:12px 14px}
.prod-card__name{font-weight:700;font-size:0.9rem;margin-bottom:3px}
.prod-card__meta{font-size:0.74rem;color:var(--c-text-dim)}
.prod-card__price{font-weight:800;color:var(--c-amber);font-size:0.95rem}
.prod-card__stock{font-size:0.72rem;font-weight:700;padding:2px 8px;border-radius:999px}
.prod-card__stock--low{color:#E65100;background:#FFF3E0}
.prod-card__stock--out{color:var(--c-red);background:#FFEBEE}

/* Detail view */
.detail-section{background:var(--c-surface);border-radius:var(--radius-lg);border:1px solid var(--c-border-light);padding:18px;margin-bottom:14px;box-shadow:var(--shadow-xs)}
.detail-row{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--c-bg);font-size:0.86rem}
.detail-row:last-child{border-bottom:none}
.detail-row__label{color:var(--c-text-dim);font-weight:600}
.detail-row__value{font-weight:700}

/* Sale form */
.sale-items{margin-bottom:14px}
.sale-item-row{display:flex;gap:8px;align-items:center;margin-bottom:8px;padding:10px;background:var(--c-bg);border-radius:var(--radius-sm);border:1px solid var(--c-border-light)}
.sale-item-row select{flex:1}
.sale-item-row input{width:68px;text-align:center}
.sale-item-row button{background:none;border:none;color:var(--c-red);font-size:1.3rem;cursor:pointer;padding:4px 8px;border-radius:var(--radius-xs)}
.sale-item-row button:active{background:rgba(229,57,53,.1)}
.sale-total{text-align:right;font-size:1.4rem;font-weight:800;color:var(--c-amber);padding:14px 0}

/* Report */
.report-summary{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:18px}
.report-card{background:var(--c-surface);border-radius:var(--radius-md);padding:16px;border:1px solid var(--c-border-light);text-align:center;box-shadow:var(--shadow-xs)}
.report-card__value{font-size:1.4rem;font-weight:800;line-height:1.1}
.report-card__label{font-size:0.7rem;color:var(--c-text-dim);margin-top:6px;font-weight:600;text-transform:uppercase;letter-spacing:0.04em}
.chart-container{background:var(--c-surface);border-radius:var(--radius-lg);border:1px solid var(--c-border-light);padding:18px;margin-bottom:14px;min-height:220px;box-shadow:var(--shadow-xs)}
.chart-container canvas{width:100%!important;max-height:260px}

/* Referral */
.ref-stat{background:var(--c-surface);border-radius:var(--radius-lg);border:1px solid var(--c-border-light);padding:24px;text-align:center;margin-bottom:14px;box-shadow:var(--shadow-xs)}
.ref-stat__value{font-size:1.3rem;font-weight:800;color:var(--c-amber);line-height:1}
.ref-stat__label{font-size:0.78rem;color:var(--c-text-dim);margin-top:6px;font-weight:600}
.ref-link-box{background:var(--c-bg);border:2px dashed var(--c-border);border-radius:var(--radius-md);padding:14px;text-align:center;margin-bottom:14px;word-break:break-all;font-size:0.82rem;color:var(--c-text-muted);font-weight:600}
.ref-tree-node{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--c-surface);border-radius:var(--radius-md);border:1px solid var(--c-border-light);margin-bottom:6px;font-size:0.82rem;box-shadow:var(--shadow-xs)}

/* Settings */
.setting-row{display:flex;align-items:center;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--c-border-light)}
.setting-row__label{font-weight:700;font-size:0.9rem}
.setting-row__value{color:var(--c-text-dim);font-size:0.84rem;font-weight:600}
.setting-row__action{color:var(--c-amber);font-weight:700;font-size:0.84rem;cursor:pointer;background:none;border:none}

/* Activation — Premium Plan Cards */
.activation-steps{text-align:center;padding:4px 0}
.activation-header h3{font-size:1.25rem;font-weight:800;margin:0}
.activation-header p{font-size:0.82rem;color:var(--c-gray-400);margin:6px 0 0}
.activation-plan-select{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px;margin:24px 0}
@media(max-width:520px){.activation-plan-select{grid-template-columns:1fr}}
.activation-plan-opt{position:relative;border:2px solid var(--c-border);border-radius:var(--radius-lg);padding:28px 14px 18px;text-align:center;cursor:pointer;transition:all .25s cubic-bezier(.4,0,.2,1);background:var(--c-surface);overflow:hidden}
.activation-plan-opt::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:var(--c-border);transition:background .25s}
.activation-plan-opt:hover{transform:translateY(-3px);border-color:var(--c-amber);box-shadow:0 8px 24px rgba(245,166,35,.15)}
.activation-plan-opt:hover::before{background:var(--c-amber)}
.activation-plan-opt--selected{border-color:var(--c-amber);background:linear-gradient(180deg,var(--c-amber-light) 0%,var(--c-surface) 60%);box-shadow:0 4px 20px rgba(245,166,35,.2)}
.activation-plan-opt--selected::before{background:var(--c-amber);height:4px}
.activation-plan-opt__badge{position:absolute;top:8px;right:8px;font-size:0.6rem;font-weight:700;background:var(--c-amber);color:var(--c-text);padding:2px 10px;border-radius:99px;text-transform:uppercase;letter-spacing:.04em}
.activation-plan-opt__name{font-weight:800;font-size:1.05rem;margin-top:2px}
.activation-plan-opt__price{font-size:1.6rem;color:var(--c-amber);font-weight:900;margin:8px 0 2px;letter-spacing:-.03em}
.activation-plan-opt__period{font-size:0.7rem;color:var(--c-gray-400);margin-bottom:12px}
.activation-plan-opt__features{display:flex;flex-direction:column;gap:5px}
.activation-plan-opt__feat{font-size:0.72rem;color:var(--c-text-muted);background:var(--c-border-light);padding:4px 8px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;gap:4px}
.activation-pay-code{font-size:1.4rem;font-weight:800;letter-spacing:0.12em;background:var(--c-border-light);padding:14px;border-radius:var(--radius-md);margin:14px 0;text-align:center;word-break:break-all;border:2px dashed var(--c-text-dim)}

/* Modal */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:200;display:none;align-items:flex-end;justify-content:center;animation:fadeOverlay .2s ease}
.modal-overlay--show{display:flex}
@keyframes fadeOverlay{from{background:rgba(0,0,0,0)}to{background:rgba(0,0,0,.55)}}
.modal-box{background:var(--c-surface);border-radius:var(--radius-xl) var(--radius-xl) 0 0;padding:24px 20px calc(24px + env(safe-area-inset-bottom,0));width:100%;max-width:var(--max-w);max-height:85vh;overflow-y:auto;animation:slideUp .3s ease}
@keyframes slideUp{from{transform:translateY(100%)}to{transform:translateY(0)}}
.modal-box__title{font-weight:800;font-size:1.15rem;margin-bottom:18px}
.modal-box__actions{display:flex;gap:10px;margin-top:22px;justify-content:flex-end}

/* Scanner overlay */
.scanner-overlay{position:fixed;inset:0;z-index:400;background:#000;display:none;flex-direction:column}
.scanner-overlay--active{display:flex}
.scanner-overlay video{flex:1;object-fit:cover;width:100%;height:100%}
.scanner-overlay__header{position:absolute;top:0;left:0;right:0;display:flex;justify-content:space-between;align-items:center;padding:12px 16px;z-index:10;background:linear-gradient(to bottom,rgba(0,0,0,.6),transparent)}
.scanner-overlay__close{background:rgba(255,255,255,.2);border:none;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;cursor:pointer;color:#fff;backdrop-filter:blur(6px)}
.scanner-overlay__torch{background:rgba(255,255,255,.2);border:none;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1rem;cursor:pointer;color:#fff;backdrop-filter:blur(6px)}
.scanner-overlay__torch--active{background:var(--c-amber);color:#000}
.scanner-frame{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:260px;height:200px;border:3px solid rgba(255,255,255,.6);border-radius:16px;pointer-events:none;z-index:5;box-shadow:0 0 0 9999px rgba(0,0,0,.4)}
.scanner-frame::before{content:'';position:absolute;top:-2px;left:-2px;width:40px;height:40px;border-top:4px solid var(--c-amber);border-left:4px solid var(--c-amber);border-radius:6px 0 0 0}
.scanner-frame::after{content:'';position:absolute;bottom:-2px;right:-2px;width:40px;height:40px;border-bottom:4px solid var(--c-amber);border-right:4px solid var(--c-amber);border-radius:0 0 6px 0}
.scanner-beam{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:220px;height:2px;background:linear-gradient(to right,transparent,var(--c-amber),transparent);z-index:6;animation:scanBeam 2s ease-in-out infinite;pointer-events:none}
@keyframes scanBeam{0%,100%{top:40%}50%{top:60%}}
.scanner-overlay__hint{position:absolute;bottom:120px;left:0;right:0;text-align:center;color:rgba(255,255,255,.7);font-size:0.82rem;font-weight:600;z-index:10;text-shadow:0 1px 4px rgba(0,0,0,.5)}
.scanner-overlay__found{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:15;background:var(--c-green);color:#fff;padding:20px 32px;border-radius:16px;font-size:1.1rem;font-weight:800;box-shadow:0 4px 24px rgba(0,0,0,.4);animation:scanFound .3s ease;pointer-events:none;display:none}
@keyframes scanFound{0%{transform:translate(-50%,-50%) scale(.5);opacity:0}to{transform:translate(-50%,-50%) scale(1);opacity:1}}

/* Toast */
.toast{position:fixed;bottom:90px;left:50%;transform:translateX(-50%);background:var(--c-text);color:var(--c-surface);padding:12px 28px;border-radius:999px;font-size:0.84rem;font-weight:700;opacity:0;pointer-events:none;transition:opacity .3s,transform .3s;z-index:300;white-space:nowrap;box-shadow:var(--shadow-lg)}
.toast--show{opacity:1;transform:translateX(-50%) translateY(-4px)}
.toast--error{background:var(--c-red)}
.toast--success{background:var(--c-green)}

/* Photo upload */
.photo-grid{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
.photo-thumb{width:72px;height:72px;border-radius:var(--radius-sm);background:var(--c-border-light);display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative;border:2px solid var(--c-border-light)}
.photo-thumb img{width:100%;height:100%;object-fit:cover}
.photo-thumb__remove{position:absolute;top:-6px;right:-6px;width:22px;height:22px;border-radius:50%;background:var(--c-red);color:var(--c-surface);border:2px solid var(--c-surface);font-size:11px;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm)}
.photo-add{width:72px;height:72px;border-radius:var(--radius-sm);border:2px dashed var(--c-text-dim);display:flex;align-items:center;justify-content:center;font-size:1.8rem;cursor:pointer;color:var(--c-text-dim);background:var(--c-surface);transition:all var(--transition)}
.photo-add:hover{border-color:var(--c-amber);color:var(--c-amber)}

/* Theme toggle */
.theme-toggle{font-size:1.1rem;background:none;border:none;cursor:pointer;padding:4px 6px;border-radius:var(--radius-xs);transition:all var(--transition);color:var(--c-text-muted);flex-shrink:0}
.theme-toggle:active{background:var(--c-border-light)}

/* Lang switcher */
.lang-switch{display:flex;gap:1px;background:var(--c-border-light);border-radius:var(--radius-sm);padding:2px}
.lang-switch button{padding:5px 10px;border-radius:var(--radius-xs);border:none;background:none;font-size:0.72rem;font-weight:700;cursor:pointer;color:var(--c-text-muted);transition:all var(--transition)}
.lang-switch button.active{background:var(--c-surface);color:var(--c-text);box-shadow:var(--shadow-xs)}

/* Plan badge */
.plan-badge{display:inline-block;font-size:0.66rem;font-weight:800;padding:3px 10px;border-radius:999px;background:var(--c-amber);color:var(--c-text);letter-spacing:0.02em}

/* Limit bar */
.limit-bar{height:4px;background:var(--c-border);border-radius:2px;margin-top:5px;overflow:hidden}
.limit-bar__fill{height:100%;background:var(--c-amber);border-radius:2px;transition:width .4s ease}
.limit-bar__fill--warn{background:#E65100}.limit-bar__fill--full{background:var(--c-red)}

/* ========== AFRICAN PATTERN (CSS-only Kente-inspired) ========== */
.bg-kente{position:relative;overflow:hidden}
.bg-kente::before{content:'';position:absolute;inset:0;opacity:.04;pointer-events:none;background:
  repeating-linear-gradient(90deg,transparent,transparent 26px,var(--c-amber) 26px,var(--c-amber) 28px),
  repeating-linear-gradient(0deg,transparent,transparent 26px,var(--c-green) 26px,var(--c-green) 28px),
  repeating-linear-gradient(45deg,transparent,transparent 16px,var(--c-amber) 16px,var(--c-amber) 17px,transparent 17px,transparent 34px),
  repeating-linear-gradient(-45deg,transparent,transparent 16px,var(--c-green) 16px,var(--c-green) 17px,transparent 17px,transparent 34px)}
.bg-kente--hero::before{opacity:.06}

/* ========== LANDING PAGE STYLES ========== */
.landing-wrap{padding:0}
.landing-hero{text-align:center;padding:40px 20px 32px;position:relative;overflow:hidden;background:linear-gradient(180deg,var(--c-surface) 0%,var(--c-bg) 100%)}
.landing-hero::before{content:'';position:absolute;top:-80px;right:-60px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(245,166,35,.18) 0%,transparent 70%);pointer-events:none}
.landing-hero::after{content:'';position:absolute;bottom:-40px;left:-40px;width:160px;height:160px;border-radius:50%;background:radial-gradient(circle,rgba(0,200,83,.1) 0%,transparent 70%);pointer-events:none}
.landing-logo{font-size:3.5rem;margin-bottom:12px;display:block;position:relative;z-index:1}
.landing-badge{display:inline-block;background:rgba(0,200,83,.1);color:var(--c-green);font-size:0.76rem;font-weight:800;padding:5px 16px;border-radius:999px;margin-bottom:18px;position:relative;z-index:1;letter-spacing:0.02em}
.landing-title{position:relative;z-index:1;margin-bottom:12px}
.landing-title .accent{color:var(--c-amber)}
.landing-sub{position:relative;z-index:1;max-width:360px;margin:0 auto 28px;font-size:0.95rem;color:var(--c-text-muted)}
.landing-cta{position:relative;z-index:1;display:inline-block;padding:15px 36px;font-size:1.05rem}
.landing-trust{margin-top:18px;display:flex;flex-wrap:wrap;justify-content:center;gap:12px 20px;font-size:0.76rem;color:var(--c-text-dim);position:relative;z-index:1}
.landing-trust span{display:flex;align-items:center;gap:5px}
.landing-trust .check{color:var(--c-green);font-weight:800;font-size:0.9rem}

.landing-section{padding:40px 20px}
.landing-section--gray{background:var(--c-surface)}
.landing-section--dark{background:var(--c-text);color:var(--c-surface)}
.landing-section--dark p,.landing-section--dark .section-label{color:var(--c-text-dim)}
.landing-section--dark h2{color:var(--c-surface)}
.landing-section__inner{max-width:var(--max-w);margin:0 auto}
.section-label{font-size:0.72rem;font-weight:800;text-transform:uppercase;letter-spacing:0.08em;color:var(--c-amber);margin-bottom:8px}
.section-title{margin-bottom:10px}
.section-desc{max-width:400px;margin-bottom:28px;font-size:0.9rem}

/* FAQ Accordion */
.faq-list{max-width:600px;margin:0 auto;display:flex;flex-direction:column;gap:8px}
.faq-item{border:1px solid var(--c-border-light);border-radius:var(--radius-md);overflow:hidden;background:var(--c-surface);transition:box-shadow var(--transition);box-shadow:var(--shadow-xs)}
.faq-item:hover{box-shadow:var(--shadow-sm)}
.faq-q{display:flex;justify-content:space-between;align-items:center;width:100%;padding:16px 18px;background:none;border:none;cursor:pointer;font-size:0.88rem;font-weight:700;color:var(--c-text);text-align:left;gap:12px;line-height:1.4;user-select:none;-webkit-user-select:none}
.faq-q:hover{color:var(--c-amber)}
.faq-arrow{flex-shrink:0;font-size:0.7rem;color:var(--c-gray-400);transition:transform .25s ease;transform:rotate(0deg)}
.faq-item--open .faq-arrow{transform:rotate(90deg);color:var(--c-amber)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease;padding:0 18px}
.faq-item--open .faq-a{max-height:300px;padding:0 18px 16px}
.faq-a p{font-size:0.82rem;color:var(--c-text-muted);line-height:1.7;margin:0}
[data-theme="dark"] .faq-item{background:var(--c-bg);border-color:var(--c-border)}

.pain-grid{display:grid;grid-template-columns:1fr;gap:12px}
@media(min-width:420px){.pain-grid{grid-template-columns:repeat(3,1fr)}}
.pain-card{background:var(--c-surface);border-radius:var(--radius-lg);padding:24px 18px;text-align:center;border:1px solid var(--c-border-light);box-shadow:var(--shadow-xs);transition:all var(--transition)}
.pain-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.pain-card__icon{font-size:2.2rem;margin-bottom:14px;display:block}
.pain-card__title{font-weight:800;font-size:0.95rem;margin-bottom:8px;color:var(--c-text)}
.pain-card__desc{font-size:0.78rem;color:var(--c-text-muted);line-height:1.6}

.feat-grid{display:grid;grid-template-columns:1fr;gap:10px}
@media(min-width:400px){.feat-grid{grid-template-columns:repeat(2,1fr)}}
.feat-item{display:flex;align-items:flex-start;gap:14px;padding:18px;background:var(--c-surface);border-radius:var(--radius-md);border:1px solid var(--c-border-light);box-shadow:var(--shadow-xs);transition:all var(--transition)}
.feat-item:hover{box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.feat-item__icon{font-size:1.5rem;flex-shrink:0;width:32px;text-align:center;margin-top:2px}
.feat-item__text h4{font-size:0.9rem;font-weight:800;margin-bottom:4px;color:var(--c-text)}
.feat-item__text p{font-size:0.76rem;color:var(--c-text-muted);line-height:1.6}

.steps-row{display:flex;flex-direction:column;gap:20px}
.step-item{display:flex;gap:16px;align-items:flex-start;padding:20px;background:var(--c-surface);border-radius:var(--radius-lg);border:1px solid var(--c-border-light);box-shadow:var(--shadow-xs)}
.step-num{flex-shrink:0;width:44px;height:44px;border-radius:50%;background:var(--c-text);color:var(--c-amber);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.1rem}
.step-body h3{font-size:1rem;margin-bottom:4px}
.step-body p{font-size:0.8rem;color:var(--c-text-muted)}

/* 濂楅瀵规瘮缃戞牸 鈥?鍝嶅簲寮忥細灏忓睆2鍒楋紝澶у睆4鍒楋紝淇濊瘉鎵€鏈夊椁愬彲瑙?*/
.plan-compare-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
@media(min-width:480px){.plan-compare-grid{grid-template-columns:repeat(4,1fr)}}
.plan-compare-card{background:var(--c-surface);border:2px solid var(--c-border-light);border-radius:var(--radius-lg);padding:20px 12px;text-align:center;position:relative;transition:all var(--transition);box-shadow:var(--shadow-xs)}
.plan-compare-card:hover{box-shadow:var(--shadow-md)}
.plan-compare-card--featured{border-color:var(--c-amber);box-shadow:0 4px 28px rgba(245,166,35,.2);z-index:1}
.plan-compare-card__badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--c-amber);color:var(--c-text);font-size:0.66rem;font-weight:800;padding:3px 14px;border-radius:999px;white-space:nowrap}
.plan-compare-card__name{font-weight:800;font-size:1rem;margin-top:4px}
.plan-compare-card__price{font-size:1.5rem;font-weight:800;color:var(--c-amber);margin:6px 0 2px}
.plan-compare-card__period{font-size:0.7rem;color:var(--c-text-dim);margin-bottom:14px}
.plan-compare-card__feat{font-size:0.7rem;padding:4px 0;border-bottom:1px solid var(--c-bg);color:var(--c-text-muted);display:flex;align-items:center;gap:4px;justify-content:center}
.plan-compare-card__feat .dot{color:var(--c-green);font-weight:800}
.plan-compare-card__feat .cross{color:var(--c-text-dim)}

.country-chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.country-chip{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;background:var(--c-surface);border-radius:999px;border:1px solid var(--c-border-light);font-size:0.78rem;font-weight:600;box-shadow:var(--shadow-xs);transition:all var(--transition)}
.country-chip:hover{box-shadow:var(--shadow-sm);transform:translateY(-1px)}
.country-chip__flag{font-size:1.1rem}

.ref-teaser{background:var(--c-surface);border-radius:var(--radius-xl);padding:24px;text-align:center;border:1px solid var(--c-border-light);box-shadow:var(--shadow-xs);max-width:400px;margin:0 auto}
.ref-teaser__pct{font-size:2.5rem;font-weight:800;color:var(--c-amber);line-height:1}
.ref-scenario{font-size:0.82rem;color:var(--c-text-muted);line-height:1.5;margin-bottom:16px;text-align:center;background:var(--c-bg);border-radius:var(--radius-sm);padding:12px 14px}
.ref-teaser__label{font-size:0.85rem;color:var(--c-text-muted);margin:8px 0 16px}
.ref-table{width:100%;font-size:0.78rem;border-collapse:collapse}
.ref-table th,.ref-table td{padding:8px 10px;text-align:left;border-bottom:1px solid var(--c-border-light)}
.ref-table th{font-weight:700;color:var(--c-text-dim);font-size:0.7rem;text-transform:uppercase}
.ref-table .hl{color:var(--c-amber);font-weight:700}

.landing-cta-bottom{text-align:center;padding:48px 20px}
.landing-cta-bottom h2{margin-bottom:8px}
.landing-cta-bottom p{margin-bottom:24px}

.landing-footer{text-align:center;padding:32px 20px;background:var(--c-text);color:var(--c-text-dim);font-size:0.76rem}
.landing-footer a{color:var(--c-text-dim);text-decoration:none}
.landing-footer a:hover{color:var(--c-amber)}

/* Floating WhatsApp */
.wa-float{position:fixed;bottom:24px;right:20px;z-index:1000;width:56px;height:56px;border-radius:50%;background:#25D366;box-shadow:0 4px 16px rgba(37,211,102,.35);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition);text-decoration:none}
.wa-float:hover{transform:scale(1.08);box-shadow:0 6px 24px rgba(37,211,102,.45)}
.wa-float svg{width:28px;height:28px;fill:#fff}
@media(min-width:768px){.wa-float{right:calc((100vw - 480px)/2 + 20px)}}

/* ===== DARK THEME OVERRIDES ===== */
[data-theme="dark"] .dash-alert{background:rgba(251,191,36,.12);border-color:rgba(251,191,36,.25)}
[data-theme="dark"] .dash-alert__title{color:#FBBF24}
[data-theme="dark"] .prod-card__stock--low{background:rgba(230,81,0,.2);color:#FF9800}
[data-theme="dark"] .prod-card__stock--out{background:rgba(229,57,53,.2)}
[data-theme="dark"] .landing-badge{background:rgba(74,222,128,.12);color:#4ADE80}
[data-theme="dark"] .landing-hero::before{background:radial-gradient(circle,rgba(245,166,35,.25) 0%,transparent 70%)}
[data-theme="dark"] .landing-hero::after{background:radial-gradient(circle,rgba(74,222,128,.12) 0%,transparent 70%)}
[data-theme="dark"] .app-header{background:rgba(26,29,36,.92)}
[data-theme="dark"] .bottom-nav{background:rgba(26,29,36,.92)}
[data-theme="dark"] .modal-box{background:var(--c-border-light)}
[data-theme="dark"] .modal-overlay{background:rgba(0,0,0,.72)}
[data-theme="dark"] .lang-switch{background:var(--c-border)}
[data-theme="dark"] .lang-switch button.active{background:var(--c-border-light);color:var(--c-surface)}
[data-theme="dark"] .landing-footer{background:var(--c-border-light)}
[data-theme="dark"] .toast{background:var(--c-text-muted);color:var(--c-text)}
[data-theme="dark"] .btn--outline{border-color:var(--c-text-dim);color:var(--c-text)}
[data-theme="dark"] .btn--outline:hover{border-color:var(--c-amber);color:var(--c-amber)}
[data-theme="dark"] .setting-row{border-bottom-color:var(--c-border)}
[data-theme="dark"] .dash-section__title{color:var(--c-text-muted)}
[data-theme="dark"] .ref-link-box{background:var(--c-bg);border-color:var(--c-text-dim);color:var(--c-text-muted)}
[data-theme="dark"] .activation-plan-opt{background:var(--c-bg)}
[data-theme="dark"] .activation-plan-opt--selected{background:linear-gradient(180deg,rgba(245,166,35,.08) 0%,var(--c-bg) 60%)}
[data-theme="dark"] .activation-plan-opt__feat{background:var(--c-surface);color:var(--c-text-muted)}
[data-theme="dark"] .activation-pay-code{background:var(--c-bg);border-color:var(--c-text-dim)}
[data-theme="dark"] .landing-section--dark{background:var(--c-border);color:var(--c-text)}
[data-theme="dark"] .landing-section--dark p,
[data-theme="dark"] .landing-section--dark .section-label{color:var(--c-text-muted)}
[data-theme="dark"] .landing-section--dark h2{color:var(--c-text)}
[data-theme="dark"] .landing-hero{background:linear-gradient(180deg,var(--c-surface) 0%,var(--c-bg) 100%)}
[data-theme="dark"] .step-num{background:var(--c-surface);color:var(--c-amber)}
[data-theme="dark"] .landing-section--gray{background:var(--c-bg)}
[data-theme="dark"] .sale-type-toggle{background:var(--c-border)}
[data-theme="dark"] .sale-type-toggle button.active{background:var(--c-border-light);color:var(--c-surface)}
[data-theme="dark"] .sale-type-toggle button.active.cash-active{background:var(--c-green);color:var(--c-surface);box-shadow:0 2px 12px rgba(0,200,83,.4)}
[data-theme="dark"] .sale-type-toggle button.active.credit-active{background:var(--c-amber);color:var(--c-text)}

/* Receipt */
.receipt-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.6);z-index:2000;display:flex;align-items:flex-start;justify-content:center;padding-top:20px;overflow-y:auto}
.receipt-paper{background:#fff;color:#1a1a1a;width:100%;max-width:420px;padding:24px 20px;font-family:'Courier New',monospace;font-size:0.85rem;line-height:1.6;box-shadow:0 8px 32px rgba(0,0,0,.3);border-radius:4px;margin-bottom:40px}
.receipt-paper table{width:100%;border-collapse:collapse;margin:12px 0}
.receipt-paper th,.receipt-paper td{padding:4px 6px;text-align:left;border-bottom:1px dashed #ccc}
.receipt-paper th{font-size:0.72rem;text-transform:uppercase;color:#888}
.receipt-paper .rc-total{font-size:1.1rem;font-weight:700;border-top:2px solid #1a1a1a}
.receipt-paper .rc-shop{text-align:center;margin-bottom:4px;font-size:0.78rem;color:#555}
.receipt-paper .rc-title{text-align:center;font-size:1.2rem;font-weight:700;letter-spacing:2px;margin:12px 0}
.receipt-paper .rc-divider{border-top:1px dashed #ccc;margin:10px 0}
.receipt-paper .rc-footer{text-align:center;font-size:0.78rem;color:#888;margin-top:16px}
/* ---- Receipt watermark (浠樻姘村嵃, 寮哄埗涓嶅彲鏇存敼) ---- */
.receipt-paper .rc-watermark{margin-top:16px;padding-top:10px;border-top:1px dashed #ccc;font-size:0.68rem;color:#999;text-align:center;line-height:1.5;opacity:.85}
.receipt-paper .rc-watermark .rc-wm-title{font-weight:700;color:#888;font-size:0.7rem;margin-bottom:4px;text-transform:uppercase;letter-spacing:1px}
.receipt-paper .rc-watermark .rc-wm-line{display:flex;justify-content:center;align-items:center;gap:4px}
.receipt-paper .rc-watermark .rc-wm-line span{font-weight:600;color:#777}
.receipt-paper .rc-actions{display:flex;gap:8px;margin-top:16px;justify-content:center}
@media(max-width:480px){
  .receipt-paper .rc-actions{flex-wrap:wrap;gap:6px}
  .receipt-paper .rc-actions .btn--sm{font-size:0.7rem;padding:6px 10px}
  .rc-btn.btn--sm{font-size:0.65rem;padding:3px 7px;min-width:auto}
}
@media print{
  body>*:not(.receipt-overlay){display:none!important}
  .receipt-overlay{position:static;background:none;padding:0;overflow:visible}
  .receipt-paper{box-shadow:none;max-width:100%;width:100%;font-size:0.82rem;border-radius:0;margin:0;padding:16px 12px}
  .receipt-paper .rc-actions{display:none!important}
  @page{margin:8mm}
}

/* Spinner */
@keyframes spin{to{transform:rotate(360deg)}}
.spinner{display:inline-block;width:18px;height:18px;border:2.5px solid var(--c-text-dim);border-top-color:var(--c-amber);border-radius:50%;animation:spin .6s linear infinite;vertical-align:middle}
.spinner--sm{width:14px;height:14px;border-width:2px}
.spinner--lg{width:28px;height:28px;border-width:3px}
.btn .spinner{border-color:rgba(255,255,255,.3);border-top-color:#fff;margin-right:6px}

/* Skeleton loader */
@keyframes shimmer{0%{background-position:-200px 0}100%{background-position:calc(200px + 100%) 0}}
.skel{background:linear-gradient(90deg,var(--c-border-light) 25%,var(--c-border) 50%,var(--c-border-light) 75%);background-size:200px 100%;animation:shimmer 1.8s ease-in-out infinite;border-radius:var(--radius-sm)}
.skel--line{height:14px;margin-bottom:10px;width:100%}
.skel--line-sm{height:10px;width:60%}
.skel--card{height:72px;margin-bottom:10px;width:100%}
.skel--thumb{width:72px;height:72px;display:inline-block;margin-right:8px}
.skel--circle{width:40px;height:40px;border-radius:50%;display:inline-block}

/* Page transition enhancements */
.app-page{animation:fadeIn .2s ease}
@keyframes slideUp{from{transform:translateY(100%)}to{transform:translateY(0)}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}

/* Make 鈴?spin in loading buttons */
.btn:disabled .spin-emoji,.btn:disabled:active .spin-emoji{display:inline-block;animation:spin .8s linear infinite;transform-origin:center}
.btn:disabled .spin-emoji{display:inline-block;animation:spin .8s linear infinite}

/* Better toast */
.toast{max-width:calc(100vw - 32px);white-space:normal;text-align:center;line-height:1.4;padding:12px 20px}

/* Better modal animation */
.modal-overlay--show{display:flex!important}
.modal-box{animation:slideUp .25s ease}

/* List item staggered animation */
.list-item,.prod-card,.dash-card{animation:fadeIn .3s ease both}
/* Stagger delay via nth-child */
.list-item:nth-child(1),.prod-card:nth-child(1){animation-delay:0s}
.list-item:nth-child(2),.prod-card:nth-child(2){animation-delay:.04s}
.list-item:nth-child(3),.prod-card:nth-child(3){animation-delay:.08s}
.list-item:nth-child(4),.prod-card:nth-child(4){animation-delay:.12s}
.list-item:nth-child(n+5),.prod-card:nth-child(n+5){animation-delay:.16s}

/* Smooth scrollbar 鈥?WebKit only, Firefox ignores (warning is cosmetic,涓嶅奖鍝嶅姛鑳? */
@supports selector(::-webkit-scrollbar){
  ::-webkit-scrollbar{width:4px;height:4px}
  ::-webkit-scrollbar-track{background:transparent}
  ::-webkit-scrollbar-thumb{background:var(--c-text-dim);border-radius:99px}
}

/* Utility */
.text-center{text-align:center}

/* ---- PWA Install Banner ---- */
.install-banner {
  position: fixed; bottom: calc(var(--bottom-nav-h) + 8px); left: 8px; right: 8px;
  z-index: 999; background: var(--c-surface); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); padding: 12px 16px; display: flex;
  align-items: center; gap: 12px; animation: slideUp .3s ease;
}
.install-banner__content { flex: 1; display: flex; align-items: center; gap: 10px; }
.install-banner__icon { font-size: 28px; }
.install-banner__text { display: flex; flex-direction: column; gap: 2px; }
.install-banner__text strong { font-size: 15px; color: var(--c-text); }
.install-banner__text span { font-size: 12px; color: var(--c-text-muted); }
.install-banner__close { background: none; border: none; font-size: 18px; color: var(--c-text-dim); cursor: pointer; padding: 4px; }
.install-banner__btn { background: var(--c-amber); color: #fff; border: none; border-radius: var(--radius-sm); padding: 10px 20px; font-size: 14px; font-weight: 600; cursor: pointer; white-space: nowrap; }
.install-banner__btn:active { opacity: .8; }
@keyframes slideUp { from { transform: translateY(100px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* ---- Offline Indicator ---- */
.offline-indicator {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: var(--c-red); color: #fff; text-align: center;
  font-size: 13px; font-weight: 600; padding: 6px;
  transform: translateY(-100%); transition: transform .3s ease;
}
.offline-indicator--visible { transform: translateY(0); }

/* ---- Receipt Print Styles ---- */
@media print {
  body * { visibility: hidden; }
  .receipt-modal, .receipt-modal * { visibility: visible; }
  .receipt-modal {
    position: fixed !important; top: 0 !important; left: 0 !important;
    width: 100% !important; max-width: 80mm !important; margin: 0 !important;
    background: #fff !important; box-shadow: none !important;
  }
  .receipt-modal .modal-header { display: none !important; }
  .receipt-modal .receipt-actions { display: none !important; }
  @page { margin: 0; size: 80mm auto; }
}