/* BizFlow — Stylesheet v18 — All Devices */
:root{
  --blue:#2563eb;--blue-d:#1d4ed8;--blue-bg:#eff6ff;--blue-lt:#dbeafe;
  --green:#16a34a;--green-bg:#f0fdf4;--green-lt:#dcfce7;
  --red:#dc2626;--red-bg:#fef2f2;--red-lt:#fee2e2;
  --amber:#d97706;--amber-bg:#fffbeb;--amber-lt:#fef3c7;
  --purple:#7c3aed;--purple-bg:#f5f3ff;--purple-lt:#ede9fe;
  --bg:#f1f5f9;--surface:#ffffff;--surface2:#f8fafc;
  --text:#0f172a;--text2:#64748b;--text3:#94a3b8;
  --border:#e2e8f0;--border2:#cbd5e1;
  --r:8px;--r-lg:14px;--r-xl:20px;
  --shadow:0 1px 3px rgba(0,0,0,.07),0 1px 2px rgba(0,0,0,.04);
  --shadow-md:0 4px 16px rgba(0,0,0,.10);
  --nav:62px;--top:56px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html{height:100%;-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;
  background:var(--bg);color:var(--text);font-size:15px;line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
body.auth-mode{background:linear-gradient(135deg,#1e40af 0%,#7c3aed 100%)}

/* ROOT fills full screen */
#root{
  position:fixed;
  top:0;left:0;right:0;bottom:0;
  overflow:hidden;
}

/* MOBILE APP */
#app{
  position:absolute;
  top:0;left:0;right:0;bottom:0;
  max-width:600px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  background:var(--surface);
  overflow:hidden;
}

/* TOPBAR — handles its own safe area top padding */
.topbar{
  flex:0 0 auto;
  min-height:var(--top);
  height:auto;
  background:var(--blue);
  color:#fff;
  padding:0 16px;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  padding-bottom:10px;
  box-shadow:0 2px 8px rgba(37,99,235,.3);
  z-index:20;
  /* Safe area for notch/dynamic island */
  padding-top:max(14px, env(safe-area-inset-top, 14px));
}
.topbar-left{min-width:0;flex:1}
.topbar-left .biz-name{font-size:11px;opacity:.8;letter-spacing:.03em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar-left .page-title{font-size:17px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar-right{display:flex;align-items:center;gap:8px;flex-shrink:0}
.topbar-btn{background:rgba(255,255,255,.2);border:none;color:#fff;width:34px;height:34px;border-radius:50%;cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center}

/* PAGE — fills between topbar and nav */
.page{
  flex:1 1 0%;
  overflow-y:auto;
  overflow-x:hidden;
  -webkit-overflow-scrolling:touch;
  overscroll-behavior:contain;
  padding:14px;
  background:var(--bg);
  min-height:0;
}

/* NAV — bottom safe area for iPhone home indicator */
.nav{
  flex:0 0 auto;
  display:flex;
  background:var(--surface);
  border-top:1px solid var(--border);
  box-shadow:0 -1px 8px rgba(0,0,0,.06);
  z-index:20;
  position:relative;
  width:100%;
  padding-bottom:env(safe-area-inset-bottom, 0px);
  min-height:var(--nav);
}
.nav-btn{
  flex:1;border:none;background:none;cursor:pointer;
  font-size:9px;color:var(--text2);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-family:inherit;transition:color .15s;
  padding:6px 2px;
  min-width:0;
}
.nav-btn .icon{font-size:20px;line-height:1}
.nav-btn.active{color:var(--blue);font-weight:600}

/* DESKTOP */
@media(min-width:860px){
  #root{position:static;height:auto;overflow:visible}
  body{overflow:auto}
  #app-shell{display:flex;min-height:100vh;max-width:1400px;margin:0 auto}
  #app{
    position:static;
    flex:1;
    height:100vh;
    max-width:none;
    overflow:hidden;
    padding-top:0;
  }
  .topbar{
    padding-top:0;
    min-height:var(--top);
    height:var(--top);
    padding:0 24px;
    align-items:center;
  }
  .nav{display:none}
  .sidebar{
    width:230px;flex-shrink:0;background:var(--surface);
    border-right:1px solid var(--border);
    display:flex;flex-direction:column;
    position:sticky;top:0;height:100vh;overflow-y:auto;
  }
  .sidebar-brand{padding:20px 16px 16px;border-bottom:1px solid var(--border)}
  .sidebar-brand .brand-logo{font-size:22px;font-weight:800;color:var(--blue);letter-spacing:-.5px}
  .sidebar-brand .brand-biz{font-size:12px;color:var(--text2);margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .sidebar-nav{padding:10px 8px;flex:1}
  .sidebar-btn{
    display:flex;align-items:center;gap:11px;width:100%;
    padding:10px 12px;border:none;background:none;cursor:pointer;
    font-family:inherit;font-size:14px;font-weight:500;color:var(--text2);
    border-radius:var(--r);margin-bottom:2px;text-align:left;transition:all .15s;
  }
  .sidebar-btn:hover{background:var(--bg);color:var(--text)}
  .sidebar-btn.active{background:var(--blue-bg);color:var(--blue)}
  .sidebar-btn .icon{font-size:18px;width:22px;text-align:center;flex-shrink:0}
  .sidebar-footer{padding:12px 16px;border-top:1px solid var(--border);font-size:12px;color:var(--text3)}
  .page{padding:20px 28px}
  .modal-box{border-radius:var(--r-lg);max-width:640px;max-height:88vh}
  .modal-wrap{align-items:center}
  .grid2{grid-template-columns:repeat(4,1fr)}
  .grid2.two{grid-template-columns:1fr 1fr}
}
@media(min-width:860px)and(max-width:1100px){.grid2{grid-template-columns:1fr 1fr}}

/* TABLET */
@media(min-width:600px)and(max-width:859px){
  #app{max-width:100%}
  .grid2{grid-template-columns:repeat(3,1fr)}
  .page{padding:16px 20px}
  .nav-btn{font-size:10px}
  .nav-btn .icon{font-size:22px}
}

/* AUTH */
.auth-wrap{
  min-height:100vh;
  display:flex;align-items:center;justify-content:center;
  padding:max(20px, env(safe-area-inset-top, 20px)) 20px max(20px, env(safe-area-inset-bottom, 20px));
}
.auth-card{background:#fff;border-radius:var(--r-xl);padding:36px 28px;width:100%;max-width:420px;box-shadow:var(--shadow-md)}
.auth-logo{font-size:28px;font-weight:800;color:var(--blue);letter-spacing:-.5px;margin-bottom:4px}
.auth-sub{font-size:13px;color:var(--text2);margin-bottom:28px}
.auth-tabs{display:flex;background:var(--bg);border-radius:var(--r);padding:4px;margin-bottom:24px}
.auth-tab{flex:1;padding:9px;border:none;background:none;cursor:pointer;font-family:inherit;font-size:14px;font-weight:500;color:var(--text2);border-radius:6px;transition:all .15s}
.auth-tab.active{background:#fff;color:var(--blue);box-shadow:var(--shadow)}

/* CARDS */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:16px;margin-bottom:12px;box-shadow:var(--shadow)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:12px}
.kpi{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:13px 14px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.kpi::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;border-radius:2px 0 0 2px}
.kpi.blue::before{background:var(--blue)}.kpi.green::before{background:var(--green)}
.kpi.red::before{background:var(--red)}.kpi.amber::before{background:var(--amber)}
.kpi.purple::before{background:var(--purple)}
.kpi-label{font-size:11px;color:var(--text2);font-weight:500;text-transform:uppercase;letter-spacing:.05em;margin-bottom:5px}
.kpi-val{font-size:20px;font-weight:700;color:var(--text);line-height:1}
.kpi-sub{font-size:11px;color:var(--text3);margin-top:3px}

/* LISTS */
.list-item{display:flex;justify-content:space-between;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--border);cursor:pointer;gap:8px;transition:opacity .1s}
.list-item:last-child{border-bottom:none}
.list-item:active{opacity:.7}
.list-nc{cursor:default}.list-nc:active{opacity:1}
.li-main{font-size:14px;font-weight:600;color:var(--text)}
.li-sub{font-size:12px;color:var(--text2);margin-top:2px}
.li-right{text-align:right;flex-shrink:0}
.section-hd{font-size:11px;font-weight:600;color:var(--text2);text-transform:uppercase;letter-spacing:.06em;margin-bottom:10px;display:flex;align-items:center;justify-content:space-between}
.stat-row{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px solid var(--border)}
.stat-row:last-child{border-bottom:none}
.stat-k{font-size:13px;color:var(--text2)}.stat-v{font-size:13px;font-weight:600}

/* TAGS */
.tag{display:inline-block;padding:3px 9px;border-radius:20px;font-size:11px;font-weight:600}
.tag-good{background:var(--green-lt);color:#15803d}.tag-average{background:var(--amber-lt);color:#92400e}
.tag-risky{background:var(--red-lt);color:#991b1b}.tag-paid{background:var(--green-lt);color:#15803d}
.tag-pending{background:var(--amber-lt);color:#92400e}.tag-fast{background:var(--green-lt);color:#15803d}
.tag-slow{background:var(--red-lt);color:#991b1b}.tag-hm{background:var(--blue-lt);color:#1e40af}

/* BARS */
.bar-row{display:flex;align-items:center;gap:8px;margin-bottom:7px}
.bar-lbl{font-size:12px;color:var(--text2);width:90px;flex-shrink:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bar-track{flex:1;background:var(--surface2);border-radius:4px;height:8px;overflow:hidden}
.bar-fill{height:8px;border-radius:4px;background:var(--blue);transition:width .4s ease}
.bar-fill.g{background:var(--green)}.bar-fill.a{background:var(--amber)}.bar-fill.p{background:var(--purple)}
.bar-val{font-size:12px;font-weight:600;width:76px;text-align:right;flex-shrink:0}

/* FORMS */
.fg{margin-bottom:12px}
.fg label{font-size:13px;font-weight:500;color:var(--text2);display:block;margin-bottom:5px}
.g2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
input,select,textarea{
  width:100%;padding:10px 12px;
  border:1px solid var(--border2);border-radius:var(--r);
  background:#fff;color:var(--text);font-size:14px;font-family:inherit;
  outline:none;transition:border-color .15s,box-shadow .15s;
  -webkit-appearance:none;appearance:none;
}
input:focus,select:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
input::placeholder,textarea::placeholder{color:var(--text3)}
select{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;padding-right:32px;
}
textarea{resize:vertical;min-height:70px}
.search-wrap{position:relative;flex:1}
.search-wrap input{padding-left:36px}
.search-ico{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--text3);font-size:15px;pointer-events:none}
.hint{font-size:12px;color:var(--green);font-weight:600;margin-bottom:10px}
.info-box{background:var(--blue-bg);border:1px solid var(--blue-lt);border-radius:var(--r);padding:10px 14px;font-size:13px;color:var(--blue);margin-bottom:12px}
.warn-box{background:var(--amber-bg);border:1px solid var(--amber-lt);border-radius:var(--r);padding:10px 14px;font-size:13px;color:var(--amber);margin-bottom:12px}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 18px;border-radius:var(--r);border:1px solid var(--border2);background:var(--surface);color:var(--text);font-size:14px;font-weight:500;cursor:pointer;font-family:inherit;transition:all .15s;white-space:nowrap;text-decoration:none;-webkit-appearance:none}
.btn:hover{background:var(--bg)}.btn:active{transform:scale(.98)}
.btn-primary{background:var(--blue);color:#fff;border-color:var(--blue)}.btn-primary:hover{background:var(--blue-d)}
.btn-green{background:var(--green);color:#fff;border-color:var(--green)}
.btn-red{background:var(--red);color:#fff;border-color:var(--red)}.btn-red:hover{background:#b91c1c}
.btn-purple{background:var(--purple);color:#fff;border-color:var(--purple)}.btn-purple:hover{background:#6d28d9}
.btn-ghost{background:transparent;border-color:transparent;color:var(--text2)}.btn-ghost:hover{background:var(--bg);color:var(--text)}
.btn-sm{padding:6px 12px;font-size:13px}.btn-xs{padding:4px 9px;font-size:12px}
.btn-block{width:100%;display:flex;margin-bottom:10px}
.btn-outline{background:transparent;color:var(--blue);border-color:var(--blue)}.btn-outline:hover{background:var(--blue-bg)}
.link-btn{background:none;border:none;cursor:pointer;color:var(--blue);font-size:12px;font-weight:500;text-decoration:underline;font-family:inherit;padding:0;display:inline}

/* MODAL */
.modal-wrap{
  position:fixed;inset:0;
  background:rgba(0,0,0,.45);
  z-index:500;
  display:flex;align-items:flex-end;justify-content:center;
  backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px);
}
.modal-box{
  background:var(--surface);
  border-radius:var(--r-xl) var(--r-xl) 0 0;
  padding:20px 16px;
  padding-bottom:max(36px, calc(env(safe-area-inset-bottom, 0px) + 20px));
  width:100%;max-width:600px;max-height:90vh;
  overflow-y:auto;box-shadow:var(--shadow-md);
}
.modal-handle{display:block;width:36px;height:4px;background:var(--border2);border-radius:2px;margin:0 auto 18px}
.modal-title{font-size:17px;font-weight:700;margin-bottom:16px}
.modal-title.purple{color:var(--purple)}.modal-title.red{color:var(--red)}

/* ORDER ROWS */
.item-row{display:flex;gap:6px;align-items:center;margin-bottom:8px;padding:10px;border-radius:var(--r);border:1px solid var(--border)}
.item-row.sale{background:var(--surface2)}.item-row.purchase{background:var(--purple-bg);border-color:var(--purple-lt)}
.item-row select{flex:1;min-width:0;font-size:13px;padding:7px 28px 7px 8px}
.item-row input{flex-shrink:0;font-size:13px;padding:7px 6px;text-align:center}
.item-row .iqty{width:54px}.item-row .iprice{width:80px}
.item-total{width:72px;text-align:right;font-size:13px;font-weight:600;flex-shrink:0}
.item-total.p{color:var(--purple)}
.remove-btn{background:none;border:none;cursor:pointer;color:var(--red);font-size:20px;line-height:1;padding:2px;flex-shrink:0}

/* INVOICE */
.inv-header{text-align:center;padding:8px 0 16px;border-bottom:2px dashed var(--border2);margin-bottom:14px}
.inv-biz{font-size:20px;font-weight:700;color:var(--blue)}
.inv-sub{font-size:12px;color:var(--text2);margin-top:3px}
.inv-meta{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--border);margin-bottom:6px}
.inv-meta-blk .lbl{font-size:11px;color:var(--text3);font-weight:500;text-transform:uppercase;letter-spacing:.04em}
.inv-meta-blk .val{font-size:13px;font-weight:600;margin-top:2px}
.inv-table{width:100%;border-collapse:collapse;margin:10px 0}
.inv-table th{font-size:11px;color:var(--text2);font-weight:600;text-align:left;padding:6px 0;border-bottom:1px solid var(--border2);text-transform:uppercase;letter-spacing:.04em}
.inv-table th:last-child,.inv-table td:last-child{text-align:right}
.inv-table td{font-size:13px;padding:8px 0;border-bottom:1px solid var(--border)}
.inv-table tr:last-child td{border-bottom:none}
.inv-total{display:flex;justify-content:space-between;align-items:center;padding:13px 16px;border-radius:var(--r);margin:10px 0;color:#fff}
.inv-total.blue{background:var(--blue)}.inv-total.purple{background:var(--purple)}
.inv-total .lbl{font-size:13px;opacity:.9}.inv-total .amt{font-size:22px;font-weight:700}
.inv-footer{text-align:center;font-size:11px;color:var(--text3);padding-top:10px;border-top:1px dashed var(--border2)}

/* MISC */
.divider{height:1px;background:var(--border);margin:12px 0}
.back-btn{display:inline-flex;align-items:center;gap:6px;background:none;border:none;cursor:pointer;color:var(--blue);font-size:14px;font-weight:500;padding:0;margin-bottom:14px;font-family:inherit}
.empty{text-align:center;padding:48px 20px}
.empty .empty-ico{font-size:48px;margin-bottom:12px}
.empty .empty-title{font-size:15px;font-weight:600;color:var(--text);margin-bottom:6px}
.empty .empty-sub{font-size:13px;color:var(--text2)}
.total-banner{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border-radius:var(--r);margin:12px 0}
.total-banner.blue{background:var(--blue-bg);color:var(--blue)}.total-banner.purple{background:var(--purple-bg);color:var(--purple)}
.total-banner .tb-lbl{font-size:14px;font-weight:600}.total-banner .tb-val{font-size:20px;font-weight:700}
.upload-zone{border:2px dashed var(--border2);border-radius:var(--r-lg);padding:28px 20px;text-align:center;cursor:pointer;transition:all .2s;background:var(--surface2)}
.upload-zone:hover,.upload-zone.drag{border-color:var(--blue);background:var(--blue-bg)}
.upload-ico{font-size:36px;margin-bottom:8px}
.upload-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:4px}
.upload-sub{font-size:12px;color:var(--text2)}

/* INSTALL BAR */
.install-banner{
  position:fixed;
  bottom:calc(var(--nav) + 8px);
  left:50%;transform:translateX(-50%);
  background:var(--blue);color:#fff;
  padding:11px 16px;border-radius:12px;
  font-size:13px;font-weight:500;
  box-shadow:var(--shadow-md);
  z-index:100;display:none;
  align-items:center;gap:10px;
  max-width:340px;width:90%;
}
.install-banner.show{display:flex}
.install-banner .ib-btn{background:#fff;color:var(--blue);border:none;padding:5px 12px;border-radius:6px;font-weight:600;cursor:pointer;font-size:12px}
.install-banner .ib-close{background:none;border:none;color:#fff;cursor:pointer;font-size:18px;padding:0;line-height:1;margin-left:auto}

/* UTILS */
.row{display:flex;align-items:center;gap:8px}
.row-b{display:flex;align-items:center;justify-content:space-between}
.row-e{display:flex;align-items:center;justify-content:flex-end;gap:8px;flex-wrap:wrap}
.mt4{margin-top:4px}.mt8{margin-top:8px}.mt12{margin-top:12px}
.mb8{margin-bottom:8px}.mb12{margin-bottom:12px}
.c-blue{color:var(--blue)}.c-green{color:var(--green)}.c-red{color:var(--red)}
.c-amber{color:var(--amber)}.c-purple{color:var(--purple)}.c-grey{color:var(--text2)}
.fw6{font-weight:600}.fw7{font-weight:700}
.fs12{font-size:12px}.fs13{font-size:13px}.fs14{font-size:14px}

/* PRINT */
.print-only{display:none}
@media print{
  #root,#app,#app-shell,.install-banner{display:none!important}
  .print-only{display:block!important;font-family:'Courier New',monospace;padding:20px;color:#000;font-size:13px}
}

/* SCROLLBAR */
::-webkit-scrollbar{width:4px;height:4px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--border2);border-radius:2px}

/* ANIMATIONS */
@keyframes fadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
.page > *{animation:fadeIn .15s ease}

/* ── SAFE AREA — iPhone notch, Dynamic Island, home indicator ── */
@supports(padding-top: env(safe-area-inset-top)){
  .topbar{
    padding-top:max(14px, env(safe-area-inset-top));
  }
  .nav{
    padding-bottom:env(safe-area-inset-bottom, 0px);
  }
  .modal-box{
    padding-bottom:max(36px, calc(env(safe-area-inset-bottom) + 20px));
  }
  #install-bar{
    padding-bottom:max(14px, calc(env(safe-area-inset-bottom) + 8px));
  }
}