/* ============ KIZZY Invoice - Global styles ============ */
:root{
  --brand:#6d28d9;
  --brand-d:#5b21b6;
  --brand-l:#ede9fe;
  --bg:#f4f5f8;
  --card:#fff;
  --tx:#1a1a2e;
  --tx2:#6b7280;
  --bd:#e5e7eb;
  --ok:#10b981;
  --warn:#f59e0b;
  --err:#ef4444;
  --sh:0 1px 3px rgba(0,0,0,.06),0 4px 14px rgba(0,0,0,.04);
  --safe-b:env(safe-area-inset-bottom,0px);
  --safe-t:env(safe-area-inset-top,0px);
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{
  font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--tx);
  overscroll-behavior-y:none;
}

/* ============ Top app bar ============ */
.appbar{
  position:fixed;top:0;left:0;right:0;z-index:50;
  padding:calc(var(--safe-t) + 10px) 14px 10px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-d) 100%);
  color:#fff;display:flex;align-items:center;justify-content:space-between;
  box-shadow:0 2px 10px rgba(109,40,217,.25);
}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-logo{
  width:38px;height:38px;object-fit:contain;
  background:#fff;border-radius:9px;padding:3px;flex-shrink:0;
}
.brand-name{font-size:16px;font-weight:800;letter-spacing:.5px;white-space:nowrap}
.brand-sub{font-size:10.5px;opacity:.85;white-space:nowrap}
.conn-dot{
  width:9px;height:9px;border-radius:50%;flex-shrink:0;
  background:var(--tx2);border:1.5px solid rgba(255,255,255,.6);
  transition:background .3s;
}
.conn-dot.ok{background:#34d399}
.conn-dot.err{background:#f87171}

/* ============ Content area ============ */
.content{
  padding:calc(var(--safe-t) + 68px) 12px calc(var(--safe-b) + 76px);
  max-width:640px;margin:0 auto;
}
.view{display:none;animation:fade .22s ease}
.view.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.spacer{height:16px}

/* ============ Cards ============ */
.card{
  background:var(--card);border-radius:14px;padding:14px;margin-bottom:12px;
  box-shadow:var(--sh);
}
.card-hd{
  display:flex;align-items:center;gap:7px;
  font-size:14px;font-weight:700;margin-bottom:11px;
  padding-bottom:9px;border-bottom:1px solid var(--bd);
}
.card-hd .ic{font-size:16px}
.card-hd .btn-mini{margin-left:auto}
.btn-mini{
  background:var(--brand-l);color:var(--brand);border:none;
  padding:5px 12px;border-radius:20px;font-size:12.5px;font-weight:700;cursor:pointer;
}
.btn-mini:active{transform:scale(.94)}
.btn-mini.danger{background:#fee2e2;color:var(--err)}

/* ============ Forms ============ */
.fld{margin-bottom:11px}
.fld:last-child{margin-bottom:0}
.fld label{
  display:block;font-size:12.5px;font-weight:600;color:var(--tx2);
  margin-bottom:5px;
}
.fld label .req{color:var(--err);font-style:normal}
.fld input,.fld textarea,.fld select{
  width:100%;padding:10px 12px;
  border:1.5px solid var(--bd);border-radius:10px;
  font-size:15px;font-family:inherit;background:#fbfbfd;color:var(--tx);
  transition:border-color .18s,background .18s;
  -webkit-appearance:none;appearance:none;
}
.fld textarea{resize:vertical;min-height:44px;line-height:1.45}
.fld input:focus,.fld textarea:focus{
  outline:none;border-color:var(--brand);background:#fff;
}
.fld input[readonly]{background:#f3f4f6;color:var(--tx2);font-weight:600}
.fld input[type=color]{padding:3px;height:42px;cursor:pointer}
.fld.inline{display:flex;align-items:center;gap:10px}
.fld.inline label{margin:0;flex-shrink:0}
.fld.inline input{width:110px;text-align:right;font-weight:700}
.hint{font-size:11px;color:var(--tx2);margin-top:4px;line-height:1.4}
.hint code{background:#f3f4f6;padding:1px 4px;border-radius:3px;font-size:10.5px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}

/* ============ Line items ============ */
.item{
  background:#fafafb;border:1px solid var(--bd);border-radius:11px;
  padding:12px;margin-bottom:10px;position:relative;
}
.item-top{display:flex;gap:8px;margin-bottom:9px}
.item-top input{
  flex:1;min-width:0;
  font-size:16px;                 /* 16px 可避免 iOS 自动放大页面 */
  padding:13px 14px;
  min-height:48px;
  border-radius:9px;
  line-height:1.35;
}
.item-bot{display:grid;grid-template-columns:78px 1fr auto;gap:9px;align-items:center}
.item-bot input{
  text-align:center;font-weight:600;
  font-size:16px;padding:11px 6px;min-height:44px;
}
.item-bot .amt{
  font-size:15px;font-weight:800;text-align:right;
  color:var(--brand);white-space:nowrap;min-width:76px;
}
.del-item{
  background:none;border:none;color:var(--tx2);font-size:19px;
  cursor:pointer;padding:2px 5px;line-height:1;flex-shrink:0;
}
.del-item:active{color:var(--err)}
.empty-hint{
  text-align:center;color:var(--tx2);font-size:12.5px;
  padding:14px 0;font-style:italic;
}

/* ============ Totals ============ */
.sum-row{
  display:flex;justify-content:space-between;align-items:center;
  padding:7px 0;font-size:13.5px;color:var(--tx2);
}
.sum-row b{font-weight:700;color:var(--tx);font-variant-numeric:tabular-nums}
.sum-row.grand{
  border-top:2px solid var(--brand);margin-top:6px;padding-top:11px;
  font-size:16px;font-weight:800;color:var(--tx);
}
.sum-row.grand b{font-size:21px;color:var(--brand);font-weight:800}

/* ============ Payment methods ============ */
.pay-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:7px}
.pay-opt{
  border:1.5px solid var(--bd);border-radius:10px;
  padding:9px 3px;text-align:center;cursor:pointer;
  background:#fbfbfd;transition:all .18s;
  min-width:0;
}
.pay-opt .pico{font-size:20px;display:block;margin-bottom:3px}
.pay-opt .ptx{
  font-size:11px;font-weight:600;color:var(--tx2);line-height:1.2;
  /* 名称过长时省略，保证 4 列不被撑破 */
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.pay-opt.sel{
  border-color:var(--brand);background:var(--brand-l);
  box-shadow:0 0 0 3px rgba(109,40,217,.1);
}
.pay-opt.sel .ptx{color:var(--brand);font-weight:800}
.pay-opt:active{transform:scale(.96)}
.chk{display:flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600}
.chk input{width:18px;height:18px;accent-color:var(--brand)}

/* ============ Buttons ============ */
.btn-primary{
  width:100%;padding:15px;border:none;border-radius:13px;
  background:linear-gradient(135deg,var(--brand),var(--brand-d));
  color:#fff;font-size:16px;font-weight:800;font-family:inherit;
  cursor:pointer;box-shadow:0 4px 14px rgba(109,40,217,.3);
  transition:transform .15s;
}
.btn-primary:active{transform:scale(.98)}
.btn-primary:disabled{background:#d1d5db;box-shadow:none;cursor:not-allowed}
.btn-ghost{
  flex:1;padding:13px;border:1.5px solid var(--bd);border-radius:13px;
  background:#fff;color:var(--tx);font-size:14.5px;font-weight:700;
  font-family:inherit;cursor:pointer;
}
.btn-ghost:active{transform:scale(.98)}
.btn-row{display:flex;gap:10px}

/* ============ Bottom tab bar ============ */
.tabbar{
  position:fixed;bottom:0;left:0;right:0;z-index:50;
  display:flex;background:rgba(255,255,255,.96);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-top:1px solid var(--bd);
  padding-bottom:var(--safe-b);
}
.tab{
  flex:1;padding:9px 0 8px;border:none;background:none;
  display:flex;flex-direction:column;align-items:center;gap:2px;
  font-size:11px;font-weight:600;color:var(--tx2);cursor:pointer;
  font-family:inherit;
}
.tab span{font-size:21px;line-height:1}
.tab.active{color:var(--brand)}
.tab.active span{transform:translateY(-1px)}
.tab:active{opacity:.6}

/* ============ Preview modal ============ */
.modal{
  position:fixed;inset:0;z-index:100;
  background:rgba(0,0,0,.55);
  display:none;align-items:flex-end;justify-content:center;
  backdrop-filter:blur(3px);
}
.modal.show{display:flex;animation:fade .2s ease}
.modal-box{
  background:#fff;width:100%;max-width:640px;max-height:92vh;
  border-radius:20px 20px 0 0;display:flex;flex-direction:column;
  animation:up .26s cubic-bezier(.2,.9,.3,1);
}
@keyframes up{from{transform:translateY(100%)}to{transform:none}}
.modal-hd{
  padding:15px 16px 11px;border-bottom:1px solid var(--bd);
  display:flex;align-items:center;justify-content:space-between;
}
.modal-hd b{font-size:16px}
.modal-hd .x{
  background:#f3f4f6;border:none;width:30px;height:30px;border-radius:50%;
  font-size:15px;cursor:pointer;color:var(--tx2);
}
.modal-body{
  flex:1;overflow-y:auto;padding:16px;-webkit-overflow-scrolling:touch;
}
.rcpt-wrap{
  display:flex;justify-content:center;background:#f9fafb;
  border-radius:12px;padding:12px;
}
#rcptCanvas{
  max-width:100%;height:auto;border-radius:6px;
  box-shadow:0 2px 12px rgba(0,0,0,.1);
}
.share-note{
  margin-top:11px;font-size:12px;color:var(--tx2);
  text-align:center;line-height:1.5;
}
.share-note:empty{display:none}
.modal-ft{
  padding:12px 16px calc(var(--safe-b) + 12px);
  border-top:1px solid var(--bd);display:flex;gap:9px;flex-wrap:wrap;
}
/* 4 个按钮分三行：存图/分享图 并排，发送与确认各占整行 */
.modal-ft #dlBtn,.modal-ft #shareImgBtn{flex:1 1 calc(50% - 5px);font-size:13.5px;padding:11px}
.modal-ft #custBtn,.modal-ft #confirmBtn{flex:1 1 100%}

/* ============ History ============ */
.hist{
  display:flex;align-items:center;gap:11px;
  padding:11px 0;border-bottom:1px solid var(--bd);
}
.hist:last-child{border-bottom:none}
.hist-ic{
  width:38px;height:38px;border-radius:10px;flex-shrink:0;
  background:var(--brand-l);display:flex;align-items:center;justify-content:center;
  font-size:17px;
}
.hist-main{flex:1;min-width:0}
.hist-t{font-size:14px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hist-s{font-size:11.5px;color:var(--tx2);margin-top:1px}
.hist-a{font-size:14.5px;font-weight:800;color:var(--brand);white-space:nowrap}
.hist-badge{
  font-size:9.5px;padding:2px 6px;border-radius:20px;font-weight:700;
  background:var(--brand-l);color:var(--brand);
}
.hist-del{
  flex-shrink:0;width:32px;height:32px;border-radius:9px;
  border:1px solid var(--bd);background:#fff;color:var(--err);
  font-size:15px;line-height:1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
}
.hist-del:active{background:var(--err);color:#fff;border-color:var(--err)}

/* ============ Toast ============ */
.toast{
  position:fixed;bottom:calc(var(--safe-b) + 86px);left:50%;
  transform:translateX(-50%) translateY(14px);z-index:200;
  background:rgba(26,26,46,.94);color:#fff;
  padding:11px 20px;border-radius:24px;font-size:13.5px;font-weight:600;
  opacity:0;pointer-events:none;transition:all .26s;
  max-width:88vw;text-align:center;
  backdrop-filter:blur(8px);
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ============ Small screen ============ */
@media(max-width:360px){
  .pay-grid{grid-template-columns:repeat(4,1fr);gap:5px}
  .pay-opt{padding:8px 2px}
  .pay-opt .pico{font-size:18px}
  .pay-opt .ptx{font-size:10px}
  .brand-sub{display:none}
  .item-bot{grid-template-columns:62px 1fr auto}
}
/* Desktop centering */
@media(min-width:700px){
  body{background:#eceef2}
  .appbar,.tabbar{max-width:640px;left:50%;transform:translateX(-50%)}
  .appbar{border-radius:0 0 14px 14px}
  .tabbar{border-radius:14px 14px 0 0}
  .modal{align-items:center}
  .modal-box{border-radius:20px;max-height:88vh}
}

/* ============ Login screen ============ */
.login-wrap{display:none}
body.locked .appbar,
body.locked .content,
body.locked .tabbar{display:none!important}
body.locked .login-wrap{
  position:fixed;inset:0;z-index:300;display:flex;
  align-items:center;justify-content:center;padding:20px;
  background:linear-gradient(150deg,var(--brand) 0%,var(--brand-d) 55%,#3b157a 100%);
}
.login-card{
  width:100%;max-width:380px;background:#fff;border-radius:22px;
  padding:32px 24px 24px;text-align:center;
  box-shadow:0 18px 50px rgba(0,0,0,.28);
}
.login-logo{width:140px;max-width:70%;height:auto;object-fit:contain;margin-bottom:12px}
.login-title{font-size:23px;font-weight:800;letter-spacing:1px;color:var(--tx)}
.login-sub{font-size:12px;color:var(--tx2);margin-bottom:22px;letter-spacing:.5px}
.login-fld{margin-bottom:14px;text-align:left}
.login-fld label{
  display:block;font-size:12px;font-weight:700;color:var(--tx2);margin-bottom:6px;
}
.login-fld input{
  width:100%;padding:12px 13px;border:1.5px solid var(--bd);border-radius:11px;
  font-size:15px;font-family:inherit;background:#fbfbfd;
}
.login-fld input:focus{outline:none;border-color:var(--brand);background:#fff}
.user-pick{display:flex;flex-direction:column;gap:8px}
.upick{
  display:flex;align-items:center;gap:11px;width:100%;
  padding:10px 12px;border:1.5px solid var(--bd);border-radius:11px;
  background:#fbfbfd;cursor:pointer;font-family:inherit;text-align:left;
  transition:all .16s;
}
.upick:active{transform:scale(.985)}
.upick.sel{border-color:var(--brand);background:var(--brand-l);box-shadow:0 0 0 3px rgba(109,40,217,.1)}
.up-av{
  width:33px;height:33px;border-radius:50%;flex-shrink:0;
  background:var(--brand);color:#fff;font-weight:800;font-size:15px;
  display:flex;align-items:center;justify-content:center;
}
.upick.sel .up-av{background:var(--brand-d)}
.up-nm{font-size:14.5px;font-weight:700;color:var(--tx);flex:1}
.up-ad{
  font-size:9px;font-weight:800;letter-spacing:.6px;padding:3px 7px;border-radius:20px;
  background:var(--brand);color:#fff;
}
.login-err{
  min-height:18px;font-size:12.5px;font-weight:700;color:var(--err);
  margin-top:10px;
}
.login-err:empty{min-height:0}
.login-foot{margin-top:16px;font-size:10.5px;color:var(--tx2);opacity:.8}

/* ============ App bar right (user) ============ */
.appbar-right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.who{display:flex;flex-direction:column;align-items:flex-end;line-height:1.15}
.who-name{font-size:13px;font-weight:700;color:#fff}
.who-role{
  font-size:8.5px;font-weight:800;letter-spacing:.6px;padding:1px 6px;border-radius:20px;
  background:rgba(255,255,255,.24);color:#fff;
}
.logout{
  background:rgba(255,255,255,.16);border:none;color:#fff;
  width:30px;height:30px;border-radius:50%;font-size:14px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
}
.logout:active{transform:scale(.92)}

/* ============ Cloud sync badge ============ */
.cloud-dot{
  font-size:8.5px;font-weight:800;letter-spacing:.5px;
  padding:3px 7px;border-radius:20px;flex-shrink:0;
  background:rgba(255,255,255,.18);color:rgba(255,255,255,.75);
  border:1px solid rgba(255,255,255,.28);
  white-space:nowrap;
}
.cloud-dot.on{background:#34d399;color:#064e3b;border-color:#34d399}
.cloud-dot.err{background:#fbbf24;color:#713f12;border-color:#fbbf24}

/* ============ Permission note ============ */
.perm-note{
  border-radius:12px;padding:11px 13px;margin-bottom:12px;
  font-size:12.5px;line-height:1.5;
}
.perm-note.ok{background:#ecfdf5;border:1px solid #a7f3d0;color:#065f46}
.perm-note.ro{background:#fffbeb;border:1px solid #fde68a;color:#92400e}

/* ============ Accounts (admin) ============ */
.acct{
  display:flex;align-items:center;gap:10px;
  padding:9px 0;border-bottom:1px solid var(--bd);
}
.acct:last-child{border-bottom:none}
.acct-nm{flex:1;font-size:13.5px;font-weight:700;min-width:0}
.acct-pw{
  width:130px;padding:8px 10px;border:1.5px solid var(--bd);border-radius:9px;
  font-size:13px;font-family:inherit;text-align:center;
}
.acct-pw:focus{outline:none;border-color:var(--brand)}

/* ============ Filter ============ */
.filter-stat{
  margin-top:10px;padding:9px 11px;border-radius:10px;
  background:#f7f7f9;font-size:12.5px;color:var(--tx2);text-align:center;
}
.filter-stat b{color:var(--brand);font-weight:800}
.auto-tag{
  font-size:9px;font-weight:800;letter-spacing:.5px;padding:2px 6px;border-radius:20px;
  background:var(--brand-l);color:var(--brand);vertical-align:middle;
}