html{-webkit-text-size-adjust:100%}
body{margin:0}
img{max-width:100%}
[hidden]{display:none!important}

/* Màu theo hệ thống CRM DConnect: xanh #1565f0, chữ navy, nền xám xanh. Layout: sổ cái một cột rộng; dải tổng ở trên, tab Tổng quan / Khoản chi / Thành viên, biểu mẫu nhập trượt lên như tờ phiếu chi */
:root{
  --bg:#f3f6fb; --surface:#ffffff; --sunk:#eef2f8; --line:#dde4ee;
  --ink:#0d1838; --muted:#5a6782; --accent:#1565f0; --accent-ink:#ffffff;
  --owe:#c2410c; --owe-bg:#fff1e8; --get:#0f7a55; --get-bg:#e3f5ee; --danger:#c62828;
  --f-display:"Be Vietnam Pro",system-ui,sans-serif;
  --f-body:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",sans-serif;
  --r:14px;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0b1226; --surface:#121b33; --sunk:#0a1020; --line:#26324f;
  --ink:#e6ecf8; --muted:#9aa8c4; --accent:#5b97ff; --accent-ink:#06122e;
  --owe:#ffa66b; --owe-bg:#3a2214; --get:#5fd6a6; --get-bg:#0f3327; --danger:#ff8a80; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0b1226; --surface:#121b33; --sunk:#0a1020; --line:#26324f;
  --ink:#e6ecf8; --muted:#9aa8c4; --accent:#5b97ff; --accent-ink:#06122e;
  --owe:#ffa66b; --owe-bg:#3a2214; --get:#5fd6a6; --get-bg:#0f3327; --danger:#ff8a80; color-scheme:dark}
*{box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:15px;line-height:1.5;font-variant-numeric:tabular-nums}
.wrap{max-width:1040px;margin:0 auto;padding-block:20px 80px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
h1,h2,h3{font-family:var(--f-display);text-wrap:balance;margin:0;line-height:1.2}
h1{font-size:1.6rem;letter-spacing:-.01em;font-weight:800}
.brand{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.brand img{width:36px;height:36px}
.brand span{font-weight:800;letter-spacing:.14em;font-size:.95rem;color:var(--ink)}
.brand small{display:block;font-size:.62rem;letter-spacing:.12em;color:var(--muted);font-weight:500;text-transform:uppercase}
h2{font-size:1.15rem}
.top{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end;justify-content:space-between}
.sub{color:var(--muted);font-size:.9rem}
.label{font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:600}
button,.btn{font:inherit;cursor:pointer;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:8px 14px;font-weight:500}
button:hover{border-color:var(--accent)}
button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.primary:hover{filter:brightness(1.08)}
.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);font-weight:600}
.ghost{background:transparent;border-color:transparent;color:var(--muted)}
.danger{color:var(--danger)}
button:disabled{opacity:.5;cursor:not-allowed}
.totals{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin-top:18px}
.totals>div{background:var(--surface);padding:14px 16px;min-width:0}
.big{font-family:var(--f-display);font-size:1.45rem;font-weight:600;margin-top:2px;overflow-wrap:anywhere}
.tabs{display:flex;gap:4px;margin-top:22px;border-bottom:1px solid var(--line);overflow-x:auto}
.tabs button{border:none;border-bottom:2px solid transparent;border-radius:0;background:none;padding:10px 12px;color:var(--muted);white-space:nowrap}
.tabs button[aria-selected="true"]{color:var(--ink);border-bottom-color:var(--accent);font-weight:600}
section.view{margin-top:18px;display:grid;gap:18px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px;min-width:0}
.panel-h{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-bottom:12px}
.scroll{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:.92rem}
th{text-align:left;font-weight:600;color:var(--muted);font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;padding:8px 10px;border-bottom:1px solid var(--line);white-space:nowrap}
td{padding:10px;border-bottom:1px solid var(--line);vertical-align:top}
tr:last-child td{border-bottom:none}
.num{text-align:right;white-space:nowrap}
.pill{display:inline-block;padding:2px 9px;border-radius:999px;font-size:.8rem;font-weight:600;white-space:nowrap}
.pill.owe{background:var(--owe-bg);color:var(--owe)}
.pill.get{background:var(--get-bg);color:var(--get)}
.pill.even{background:var(--sunk);color:var(--muted)}
.debts{display:grid;gap:8px}
.debt{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;padding:12px 14px;background:var(--sunk);border-radius:8px}
.debt b{font-weight:600}
.debt .amt{margin-left:auto;font-family:var(--f-display);font-weight:600;color:var(--owe)}
.arrow{color:var(--muted)}
.bars{display:grid;gap:12px}
.bar-row{display:grid;grid-template-columns:minmax(80px,140px) 1fr;gap:10px;align-items:center}
.bar-track{position:relative;height:22px;background:var(--sunk);border-radius:4px;overflow:hidden}
.bar-fill{position:absolute;inset:0 auto 0 0;background:var(--accent);opacity:.85}
.bar-share{position:absolute;top:-2px;bottom:-2px;width:2px;background:var(--ink)}
.bar-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:500}
.legend{display:flex;gap:16px;flex-wrap:wrap;font-size:.82rem;color:var(--muted);margin-top:10px}
.legend i{display:inline-block;width:12px;height:12px;border-radius:2px;vertical-align:-2px;margin-right:5px;background:var(--accent)}
.legend i.mk{width:2px;background:var(--ink)}
.filters{display:flex;flex-wrap:wrap;gap:8px}
.exp-title{font-weight:600}
.exp-meta{color:var(--muted);font-size:.82rem}
.thumb{width:44px;height:44px;border-radius:6px;object-fit:cover;border:1px solid var(--line);display:block;background:var(--sunk)}
.nobill{font-size:.75rem;color:var(--owe)}
.link{background:none;border:none;padding:0;color:var(--accent);font-weight:600;text-decoration:underline;text-underline-offset:2px}
.empty{padding:28px 16px;text-align:center;color:var(--muted)}
.empty strong{display:block;color:var(--ink);font-size:1.05rem;margin-bottom:4px}
.warn{background:var(--owe-bg);color:var(--owe);padding:10px 12px;border-radius:8px;font-size:.9rem}
.info{background:var(--sunk);color:var(--muted);padding:10px 12px;border-radius:8px;font-size:.88rem}
/* sheet */
.overlay{position:fixed;inset:0;background:rgba(10,20,15,.45);z-index:20;display:flex;align-items:flex-end;justify-content:center;padding:env(safe-area-inset-top,0px) 0 0}
.sheet{background:var(--surface);width:100%;max-width:620px;max-height:92vh;overflow:auto;border-radius:16px 16px 0 0;padding:20px max(16px,env(safe-area-inset-right,0px)) calc(20px + env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px));display:grid;gap:14px}
@media (min-width:700px){.overlay{align-items:center}.sheet{border-radius:16px;padding:24px}}
.field{display:grid;gap:5px;min-width:0}
.field label{font-size:.85rem;font-weight:600}
input,select,textarea{font:inherit;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:11px 13px;width:100%;min-width:0}
textarea{min-height:70px;resize:vertical}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:480px){.row2{grid-template-columns:1fr}}
.seg{display:flex;background:var(--sunk);border-radius:8px;padding:3px;gap:3px}
.seg button{flex:1;border:none;background:none;padding:8px}
.seg button[aria-pressed="true"]{background:var(--surface);font-weight:600;box-shadow:0 1px 2px rgba(0,0,0,.12)}
.drop{border:1.5px dashed var(--line);border-radius:10px;padding:16px;text-align:center;color:var(--muted);cursor:pointer}
.drop img{max-height:200px;margin:0 auto;border-radius:6px}
.who{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:8px;font-size:.9rem}
.who .chip{display:inline-flex;align-items:center;gap:6px;background:var(--get-bg);color:var(--accent);border-radius:999px;padding:4px 12px;font-weight:600}
.who .chip.none{background:var(--owe-bg);color:var(--owe)}
.acct{font-size:.8rem;color:var(--muted)}
.period{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;margin-top:18px}
.period select{width:auto;min-width:180px}
.label-strong{font-size:.85rem;font-weight:600}
.slot{display:grid;gap:10px;border:1.5px dashed var(--line);border-radius:12px;padding:12px}
.slot-btns{display:flex;gap:8px;flex-wrap:wrap}
.slot-btns button{flex:1 1 140px}
.shots{display:grid;grid-template-columns:repeat(auto-fill,minmax(84px,1fr));gap:8px}
.shot{position:relative;aspect-ratio:1;max-width:100%;border-radius:8px;overflow:hidden;border:1px solid var(--line);background:var(--sunk)}
.shot img{width:100%;height:100%;object-fit:cover}
.shot-doc{display:grid;place-items:center;height:100%;font-weight:700;color:var(--muted)}
.shot-x{position:absolute;top:4px;right:4px;width:26px;height:26px;padding:0;border-radius:50%;background:var(--surface);line-height:1;font-size:1.1rem}
.prod-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:8px}
.actions{display:flex;gap:8px;justify-content:flex-end;flex-wrap:wrap}
.err{color:var(--danger);font-size:.88rem}
.detail-img{width:100%;border-radius:8px;border:1px solid var(--line)}
.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;font-size:.92rem}
.kv dt{color:var(--muted)}
.kv dd{margin:0;overflow-wrap:anywhere}
.mem-row{display:grid;grid-template-columns:1fr 110px auto;gap:8px;align-items:center}
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(20px + env(safe-area-inset-bottom,0px));background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:8px;z-index:30;font-weight:500;max-width:calc(100% - 32px)}
.fab{position:fixed;right:calc(16px + env(safe-area-inset-right,0px));bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:10;padding:13px 18px;border-radius:999px;box-shadow:0 4px 14px rgba(0,0,0,.2)}
@media (min-width:700px){.fab{display:none}}
@media (max-width:699px){.hide-sm{display:none}}
@media (prefers-reduced-motion:no-preference){.sheet{animation:up .18s ease-out}@keyframes up{from{transform:translateY(16px);opacity:.6}}}

/* trang đăng nhập */
.login-top{display:flex;align-items:center;justify-content:space-between;padding-block:12px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));background:var(--surface);border-bottom:1px solid var(--line)}
.login-wrap{display:grid;place-items:start center;padding-block:48px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.login-card{width:100%;max-width:460px;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:32px 28px;display:grid;gap:16px}
.login-card .logo-big{width:72px;height:72px;margin:0 auto}
.login-card h1{text-align:center}
.login-card .primary{padding:13px;font-size:1rem}
.acct-menu{display:flex;gap:8px;align-items:center;flex-wrap:wrap}

.user-row{display:grid;grid-template-columns:minmax(140px,1fr) minmax(160px,1fr) auto;gap:10px;align-items:center;padding:10px 0;border-bottom:1px solid var(--line)}
.user-row>.acct:last-child{grid-column:1/-1}
.user-add{display:grid;grid-template-columns:1fr 1fr auto auto;gap:8px}
@media (max-width:640px){.user-row,.user-add{grid-template-columns:1fr}}
.overlay .sheet{color:var(--ink)}