/* ============================================================
   v6.0 — MATERIAL 3 EXPRESSIVE · NỀN TRẮNG
   Màu theo vai trò M3, tông xanh ngọc trầm của chủ:
   primary #0b5d4e · primary-container #d2ecdf.
   Font Manrope: 400 nội dung/mô tả · 500 ô nhập ·
   600 nhấn nhẹ · 700 tiêu đề, nút, nhãn.
   Icon: Ionicons (SVG nội tuyến trong icons.js).
   Thang bo góc: thẻ lớn 20 · khối con 16 · ô nhập/nút 14 ·
   ô nhỏ 12 · chip/pill 999. Ô nhập cao đều 52px.
   ============================================================ */
@font-face{font-family:'Manrope';font-style:normal;font-weight:200 800;font-display:swap;src:url('fonts/manrope-vi.woff2') format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:'Manrope';font-style:normal;font-weight:200 800;font-display:swap;src:url('fonts/manrope-latin.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

:root{
  color-scheme:light;
  --primary:#0b5d4e;
  --on-primary:#ffffff;
  --primary-container:#d2ecdf;
  --on-primary-container:#063f34;
  --primary-soft:#e7f4ee;
  --background:#ffffff;
  --surface:#ffffff;
  --surface-low:#f4f8f6;
  --surface-container:#eaf2ee;
  --surface-high:#dfeae5;
  --on-surface:#15211d;
  --on-variant:#4c5c56;
  --faint:#75857f;
  --outline:#b9c8c1;
  --outline-variant:#dfe9e4;
  --error:#b3261e;
  --error-container:#f9dedc;
  --on-error-container:#7a1410;
  --busy:#b3261e;
  --busy-container:#fdecea;
  --warn:#7a4d00;
  --warn-container:#ffedb8;
  --warn-soft:#fff7e0;
  --info:#1757a5;
  --info-container:#dbeafe;
  --shadow:0 1px 3px rgba(11,60,48,.08),0 6px 18px rgba(11,60,48,.06);
  --shadow-up:0 -12px 38px rgba(11,40,32,.18);
  --radius:20px; --radius-m:16px; --radius-s:14px; --radius-xs:12px;
  --ease-out:cubic-bezier(.2,.9,.3,1); /* đường cong xuất hiện chuẩn của app chấm công */
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  font-family:'Manrope',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  font-weight:400;
  color:var(--on-surface);
  background:var(--background);
  padding-bottom:calc(104px + env(safe-area-inset-bottom));
  min-height:100dvh;
}
::selection{background:var(--primary-container)}
h1,h2,h3{margin:0}
button{font:inherit;cursor:pointer;color:inherit}
input,select,textarea{font:inherit;font-weight:500;color:var(--on-surface)}
b,strong{font-weight:700}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* ---------- Ionicons ---------- */
.ion{width:1.3em;height:1.3em;flex-shrink:0;display:inline-block;vertical-align:-.28em}
.btn .ion{width:20px;height:20px;vertical-align:0}
.chip .ion{width:17px;height:17px;vertical-align:-.22em}
h2 .ion,h3 .ion{width:1.15em;height:1.15em;vertical-align:-.18em;color:var(--primary)}
.field>span .ion,.field span .ion{width:17px;height:17px;vertical-align:-.24em;color:var(--primary)}
.nav-ico .ion{width:26px;height:26px;vertical-align:0}
.icon-btn .ion{width:19px;height:19px;vertical-align:-.3em}
.room-name .ion{width:19px;height:19px;vertical-align:-.24em}
.unit-group-title .ion{width:21px;height:21px;vertical-align:-.26em;color:var(--primary)}
.pay-tag .ion{width:14px;height:14px;vertical-align:-.2em}
.title .ion{width:18px;height:18px;vertical-align:-.24em;color:var(--primary)}
.sub .ion{width:15px;height:15px;vertical-align:-.2em}
.bill-row .ion{width:17px;height:17px;vertical-align:-.24em;color:var(--primary)}
.holiday-chip .ion{width:15px;height:15px;vertical-align:-.2em}
.qr-count-text .ion{width:16px;height:16px;vertical-align:-.22em}
.countdown .ion{width:17px;height:17px;vertical-align:-.24em}
.mode-opt .ion{width:19px;height:19px;vertical-align:-.26em}
.mini-btn .ion{width:15px;height:15px;vertical-align:-.2em}
.svc-del .ion{width:21px;height:21px;vertical-align:0}
.note .ion{width:15px;height:15px;vertical-align:-.2em}

/* ---------- Header trắng dính trên cùng ---------- */
.app-header{
  position:sticky;top:0;z-index:20;
  padding:calc(12px + env(safe-area-inset-top)) 16px 13px;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--outline-variant);
}
.header-inner{max-width:1100px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-icon{
  width:auto;height:46px;max-width:118px;border-radius:var(--radius-xs);object-fit:contain;flex-shrink:0;
  background:#fff;padding:3px 6px;border:1px solid var(--outline-variant);
}
.brand h1{
  font-size:20px;line-height:1.2;font-weight:700;letter-spacing:.1px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--on-surface);
}
.header-sub{margin:2px 0 0;font-size:13px;font-weight:400;color:var(--on-variant);text-transform:capitalize}
.install-btn{
  background:var(--primary);color:var(--on-primary);border:0;border-radius:999px;
  padding:0 16px;font-weight:700;font-size:14px;flex-shrink:0;min-height:40px;
  display:inline-flex;align-items:center;gap:7px;
}
.install-btn .ion{width:18px;height:18px}
/* Màn hình hẹp: thu logo + chữ + nút Cài app để tên nhà nghỉ không bị cắt (ảnh user gửi 2026-11-01) */
@media (max-width:560px){
  .brand{gap:9px}
  .brand-icon{height:38px;max-width:82px;padding:2px 4px}
  .brand h1{font-size:17.5px}
  .header-sub{font-size:12.5px}
  .install-btn{padding:0 12px;font-size:13.5px;min-height:38px;gap:5px}
  .install-btn .ion{width:16px;height:16px}
  .header-inner{flex-wrap:wrap}
}
.summary-bar{max-width:1100px;margin:12px auto 0;display:flex;gap:8px;flex-wrap:wrap}
.chip{
  background:var(--surface-low);border:1px solid var(--outline-variant);border-radius:999px;
  padding:6px 12px;font-size:13.5px;font-weight:600;color:var(--on-surface);
  display:inline-flex;align-items:center;gap:6px;
}
.chip b{font-weight:700;font-variant-numeric:tabular-nums}
.chip .dot{width:9px;height:9px;border-radius:50%;flex-shrink:0}
.chip .dot.free{background:#0e7a55}
.chip .dot.busy{background:var(--busy)}
.chip.money{background:var(--primary-container);border-color:var(--primary-container);color:var(--on-primary-container)}
.chip.holiday{background:var(--warn-container);border-color:var(--warn-container);color:var(--warn)}
.chip.sync-ok{color:var(--on-primary-container)}
.chip.sync-ok .ion{color:var(--primary)}
.chip.sync-err{color:var(--on-error-container);background:var(--error-container);border-color:var(--error-container)}

/* ---------- Layout ---------- */
main{max-width:1100px;margin:0 auto;padding:20px 16px 8px}
.tab{display:none}
.tab.active{display:block}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:2px 0 15px}
@media(max-width:560px){.section-head{flex-direction:column;align-items:flex-start;gap:6px}.section-head .btn{align-self:flex-start}}
.section-head h2{font-size:21px;font-weight:700;display:flex;align-items:center;gap:9px}
.section-head.sub{margin-top:26px}
.section-head h3{font-size:16.5px;font-weight:700;display:flex;align-items:center;gap:8px}
.hint{color:var(--faint);font-size:13px;font-weight:400}

/* ---------- Lưới phòng: thẻ trắng M3, trạng thái bằng container ---------- */
.unit-group{margin-bottom:24px}
.unit-group-title{font-size:16.5px;font-weight:700;margin:2px 0 12px;display:flex;align-items:center;gap:8px}
.room-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
@media(min-width:720px){.room-grid{grid-template-columns:repeat(3,1fr);gap:16px}}
.room-card{
  background:var(--surface);
  border:1px solid var(--outline-variant);border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:15px;text-align:left;width:100%;display:flex;flex-direction:column;gap:8px;min-height:152px;
  position:relative;overflow:hidden;color:var(--on-surface);
}
.room-card.free{background:var(--primary-soft);border-color:var(--primary-container)}
.room-card.occupied{background:var(--surface);border-color:#f0cfcb}
.room-card.pending{border-color:var(--warn);box-shadow:0 0 0 1.5px var(--warn-container),var(--shadow)}
.room-top{display:flex;align-items:center;gap:10px}
.room-tile{
  width:46px;height:46px;border-radius:var(--radius-m);flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:700;font-variant-numeric:tabular-nums;
}
.room-tile.free{background:var(--primary);color:#fff}
.room-tile.occupied{background:var(--error-container);color:var(--on-error-container)}
.room-title{flex:1;min-width:0;display:flex;flex-direction:column;align-items:flex-start;gap:4px}
.room-name{font-size:16.5px;font-weight:700;white-space:nowrap;display:flex;align-items:center;gap:6px}
.status-pill{
  font-size:11.5px;font-weight:700;padding:4px 10px;border-radius:999px;white-space:nowrap;
  display:inline-flex;align-items:center;gap:6px;
}
.status-pill::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
.status-pill.free{background:var(--primary-container);color:var(--on-primary-container)}
.status-pill.occupied{background:var(--error-container);color:var(--on-error-container)}
.room-guest{font-size:14.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:flex;align-items:center;gap:6px}
.room-guest .ion{width:17px;height:17px;color:var(--primary)}
.room-detail{font-size:13px;font-weight:400;color:var(--on-variant);line-height:1.55}
.room-money{margin-top:auto;font-size:17px;font-weight:700;color:var(--busy);font-variant-numeric:tabular-nums}
.room-money.free-text{color:var(--primary);font-size:13.5px;font-weight:700}
.room-money.pending-text{color:var(--warn);font-size:14px}
.room-badge{font-size:12.5px;font-weight:600;color:var(--info);background:var(--info-container);border-radius:var(--radius-xs);padding:6px 9px;line-height:1.45}
.room-badge .ion{width:14px;height:14px;vertical-align:-.18em}
.elapsed-bar{height:6px;border-radius:3px;background:var(--surface-container);overflow:hidden}
.elapsed-fill{height:100%;border-radius:3px;background:var(--busy)}

/* ---------- Thẻ & danh sách ---------- */
.card{
  background:var(--surface);
  border:1px solid var(--outline-variant);border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:18px 16px;margin-bottom:16px;
}
.card h3{font-size:16px;font-weight:700;margin-bottom:13px;display:flex;align-items:center;gap:8px}
.list-item{
  background:var(--surface);
  border:1px solid var(--outline-variant);border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:14px 16px;margin-bottom:10px;
}
.list-item .row{display:flex;justify-content:space-between;gap:10px;align-items:baseline}
.list-item .title{font-weight:600;font-size:15.5px}
.list-item .sub{color:var(--on-variant);font-size:13.5px;font-weight:400;line-height:1.55;margin-top:3px}
.list-item .amount{font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap;color:var(--primary)}
.empty{
  background:var(--surface-low);border:1.5px dashed var(--outline);
  border-radius:var(--radius);padding:26px 16px;text-align:center;color:var(--on-variant);font-size:14.5px;line-height:1.6;
}
.pay-tag{font-size:12px;font-weight:600;border-radius:999px;padding:3px 9px;background:var(--surface-container);color:var(--on-variant);white-space:nowrap;display:inline-flex;align-items:center;gap:4px}
.pay-tag.warn{background:var(--warn-container);color:var(--warn)}

/* ---------- Thống kê ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
@media(min-width:720px){.stat-grid{grid-template-columns:repeat(4,1fr)}}
.stat{
  background:var(--surface-low);
  border:1px solid var(--outline-variant);border-radius:var(--radius);
  padding:16px;
}
.stat .label{font-size:13px;color:var(--on-variant);font-weight:600}
.stat .value{font-size:22px;font-weight:700;margin-top:5px;font-variant-numeric:tabular-nums;color:var(--on-surface)}
.stat .value.money{color:var(--primary)}

/* ---------- Form: ô nhập 52px, nhãn 700 ---------- */
.field{display:block;margin-bottom:12px}
.field>span,.field span{display:block;font-size:13.5px;font-weight:700;color:var(--on-surface);margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;height:52px;padding:0 14px;border:1.5px solid var(--outline);border-radius:var(--radius-s);
  background:var(--surface);color:var(--on-surface);font-size:16px;font-weight:500;
  transition:border-color .15s ease,box-shadow .15s ease;
}
.field textarea{height:auto;padding:12px 14px}
.field input::placeholder,.field textarea::placeholder{color:var(--faint);font-weight:400}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px var(--primary-container);
}
.field-row{display:flex;gap:12px}
.field-row .field{flex:1;min-width:0}
.field-row .field.grow{flex:2}
.field-row .field.price{flex:1}
.type-picker{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:14px}
.type-opt{
  border:1.5px solid var(--outline-variant);background:var(--surface);color:var(--on-surface);
  border-radius:var(--radius-s);padding:10px 6px;text-align:center;
}
.type-opt .t{font-weight:700;font-size:14.5px;display:block}
.type-opt .p{font-size:12.5px;color:var(--on-variant);display:block;margin-top:2px}
.type-opt.selected{border-color:var(--primary);background:var(--primary-container);color:var(--on-primary-container)}
.note{font-size:13.5px;font-weight:400;color:var(--on-variant);line-height:1.55}
.note b{color:var(--on-surface)}
.note.version{font-size:12.5px;color:var(--faint)}
.adj-box{
  margin-top:12px;padding:14px;border-radius:var(--radius-m);
  background:var(--warn-soft);border:1px solid var(--warn-container);
}
.adj-box .field>span{color:var(--warn)}
.adj-chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.adj-box .note{margin-top:9px}
.mini-btn{
  border:1.5px solid var(--outline);background:var(--surface);color:var(--on-surface);
  border-radius:999px;padding:8px 14px;font-weight:600;font-size:13.5px;min-height:38px;
  display:inline-flex;align-items:center;gap:5px;
}
.custom-qr{margin-top:16px;padding-top:14px;border-top:1px dashed var(--outline-variant)}
.qr-preview{
  width:150px;height:150px;object-fit:contain;background:#fff;border:1px solid var(--outline-variant);border-radius:var(--radius-xs);
  padding:8px;margin-bottom:10px;
}
.qr-img{width:min(240px,72vw);height:auto;border-radius:var(--radius-xs);margin-top:10px;background:#fff}

/* Popup mã QR */
.qr-popup{
  position:fixed;inset:0;z-index:50;padding:16px;
  background:rgba(16,28,24,.5);
  display:flex;align-items:center;justify-content:center;
}
.qr-popup[hidden]{display:none}
.qr-popup-card{
  position:relative;width:min(400px,100%);max-height:94dvh;overflow-y:auto;
  background:var(--surface);
  border-radius:28px;padding:18px;
  box-shadow:0 28px 60px rgba(11,40,32,.35);
}
.qr-popup-card .qr-card{margin-top:0}
.qr-popup-x{position:absolute;top:10px;right:10px;z-index:2}
.qr-count{height:8px;background:var(--surface-container);border-radius:99px;overflow:hidden;margin-top:14px}
.qr-count-bar{height:100%;width:100%;background:var(--primary);border-radius:99px;transition:width .25s linear}
.qr-count-text{text-align:center;color:var(--on-variant);font-size:13.5px;margin-top:8px;display:flex;align-items:center;justify-content:center;gap:6px}
.qr-count-text b{color:var(--primary);font-size:15px;font-variant-numeric:tabular-nums}

/* ---------- Chuyển động: dùng đúng hệ của app chấm công (user chốt v6.6) ----------
   Nhấn: nén nhanh .12s (nút .965 · tab .95 · hàng danh sách đổi nền, không scale).
   Xuất hiện: riseIn .5s · sheetUp .34s · popIn .34s nảy nhẹ · toastIn .28s nảy. */
.btn,.mini-btn,.room-card,.nav-btn,.radio-opt,.mode-opt,.month-nav,.icon-btn,.qty-btn,.mrow{
  transition:transform .12s ease,box-shadow .12s ease,background-color .18s ease,border-color .15s ease,opacity .2s ease;
}
.btn:active,.mini-btn:active,.room-card:active{transform:scale(.965)}
.nav-btn:active,.month-nav:active,.icon-btn:active,.radio-opt:active,.mode-opt:active,.qty-btn:active{transform:scale(.95)}
.mrow:active{background:#eef5f1}
.tab.active{animation:riseIn .5s cubic-bezier(.2,.9,.3,1)}
@keyframes riseIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
.overlay{animation:fadeIn .25s ease}
.overlay .sheet{animation:sheetUp .34s cubic-bezier(.2,.9,.3,1)}
.overlay.closing{opacity:0;transition:opacity .19s ease}
.overlay.closing .sheet{transform:translateY(44px);opacity:.45;transition:transform .19s ease,opacity .19s ease}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes sheetUp{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}
.qr-popup{animation:fadeIn .25s ease}
.qr-popup-card{animation:popIn .34s cubic-bezier(.2,1.35,.4,1)}
.qr-popup.closing{opacity:0;transition:opacity .17s ease}
.qr-popup.closing .qr-popup-card{transform:scale(.93) translateY(8px);opacity:.35;transition:transform .17s ease,opacity .17s ease}
@keyframes popIn{from{opacity:0;transform:scale(.9) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}
.toast{animation:toastIn .28s cubic-bezier(.2,1.4,.4,1)}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,16px) scale(.94)}to{opacity:1;transform:translate(-50%,0) scale(1)}}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
}

/* Tổng kết theo tháng */
.month-card{padding:18px}
.month-head{display:flex;align-items:center;justify-content:space-between;gap:8px}
.month-title{font-size:17px;font-weight:700}
.month-now{font-size:12px;font-weight:700;color:var(--on-primary-container);background:var(--primary-container);border-radius:999px;padding:3px 9px;vertical-align:2px;white-space:nowrap}
.month-nav{
  width:42px;height:42px;border-radius:50%;flex-shrink:0;
  background:var(--surface-low);border:1px solid var(--outline-variant);color:var(--on-surface);
  display:flex;align-items:center;justify-content:center;
}
.month-nav .ion{width:20px;height:20px}
.month-nav:disabled{opacity:.3}
.month-total{font-size:31px;font-weight:700;color:var(--primary);margin-top:8px;font-variant-numeric:tabular-nums}
.month-delta{font-size:13.5px;color:var(--on-variant);margin-top:2px}
.month-delta.up{color:#0e7a55;font-weight:600}
.month-delta.down{color:var(--busy);font-weight:600}
.month-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px 18px;margin-top:14px}
.mkv{display:flex;justify-content:space-between;gap:8px;border-bottom:1px dashed var(--outline-variant);padding-bottom:6px}
.mkv .k{color:var(--on-variant);font-size:13px;font-weight:400;display:flex;align-items:center;gap:5px}
.mkv .k .ion{width:15px;height:15px;color:var(--primary)}
.mkv .v{font-weight:700;font-size:13.5px;white-space:nowrap;font-variant-numeric:tabular-nums}
.month-recent{margin-top:16px}
.month-recent-title{font-size:13px;color:var(--on-variant);margin-bottom:4px}
.mrow{
  display:flex;align-items:center;gap:10px;width:100%;text-align:left;
  background:none;border:0;border-top:1px dashed var(--outline-variant);
  padding:9px 2px;color:var(--on-surface);font-size:13.5px;min-height:44px;
}
.mrow .mlabel{width:96px;flex-shrink:0;color:var(--on-variant);font-weight:500}
.mrow.sel .mlabel{color:var(--primary);font-weight:700}
.mbar{flex:1;height:8px;background:var(--surface-container);border-radius:99px;overflow:hidden}
.mfill{display:block;height:100%;background:var(--primary);border-radius:99px}
.mrow .mtotal{font-weight:700;white-space:nowrap;font-variant-numeric:tabular-nums}
.mrow .mcount{color:var(--faint);font-size:12px;width:48px;text-align:right;flex-shrink:0}
.price-line{
  background:var(--primary-soft);border:1px solid var(--primary-container);border-radius:var(--radius-s);
  padding:11px 13px;font-size:14px;line-height:1.5;margin-bottom:12px;color:var(--on-surface);
}
.price-line .ion{width:18px;height:18px;vertical-align:-.24em;color:var(--primary)}
.mode-switch{
  display:flex;gap:5px;padding:5px;margin-bottom:8px;
  background:var(--surface-low);border:1px solid var(--outline-variant);border-radius:var(--radius-m);
}
.mode-opt{
  flex:1;border:1px solid transparent;background:transparent;color:var(--on-variant);
  border-radius:var(--radius-xs);padding:11px 6px;font-weight:700;font-size:14px;min-height:48px;
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
}
.mode-opt.selected{
  color:var(--on-primary-container);background:var(--primary-container);border-color:var(--primary-container);
}
.holiday-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}
.holiday-chip{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--warn-soft);border:1px solid var(--warn-container);color:var(--warn);
  border-radius:999px;padding:6px 8px 6px 12px;font-size:13.5px;font-weight:700;
}
.holiday-del{
  border:0;width:24px;height:24px;border-radius:50%;line-height:1;
  background:rgba(122,77,0,.12);color:var(--warn);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
}
.holiday-del .ion{width:13px;height:13px}

/* ---------- Nút M3 ---------- */
.btn{
  border:1.5px solid var(--outline);background:var(--surface);color:var(--primary);
  border-radius:var(--radius-s);padding:11px 18px;font-weight:700;font-size:15px;
  display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:52px;
}
.btn.primary{
  background:var(--primary);border-color:var(--primary);color:var(--on-primary);
}
.btn.gold{
  background:var(--primary-container);border-color:var(--primary-container);color:var(--on-primary-container);
}
.btn.danger{color:var(--error);border-color:#e8b4b0;background:var(--surface)}
.btn.small{min-height:44px;padding:7px 14px;font-size:14px;border-radius:var(--radius-xs)}
.btn.block{width:100%}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
.file-btn{cursor:pointer}
.icon-btn{
  border:1px solid var(--outline-variant);background:var(--surface-low);color:var(--on-surface);
  width:38px;height:38px;border-radius:50%;line-height:1;flex-shrink:0;
}

/* Dịch vụ + số lượng */
.svc-row{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid var(--outline-variant)}
.svc-row:last-child{border-bottom:0}
.svc-info{flex:1;min-width:0}
.svc-info .n{font-weight:600;font-size:15px}
.svc-info .p{font-size:13px;color:var(--on-variant)}
.qty-ctrl{display:flex;align-items:center;gap:8px}
.qty-btn{
  width:38px;height:38px;border-radius:50%;border:1.5px solid var(--outline);
  background:var(--surface);color:var(--primary);font-size:18px;font-weight:700;line-height:1;
}
.qty-num{min-width:22px;text-align:center;font-weight:700;font-variant-numeric:tabular-nums}
.svc-del{border:0;background:none;color:var(--error);padding:6px;cursor:pointer}

/* ---------- Hoá đơn ---------- */
.receipt{
  background:var(--surface-low);color:var(--on-surface);
  border:1px solid var(--outline-variant);border-radius:var(--radius-m);
  padding:14px 14px 8px;margin-bottom:6px;
}
.bill-row{display:flex;justify-content:space-between;padding:6.5px 0;font-size:15px;gap:12px}
.bill-row>span:first-child{color:var(--on-variant);display:flex;align-items:center;gap:6px;flex-shrink:0}
.bill-row>span:last-child{font-variant-numeric:tabular-nums;text-align:right}
.bill-row.total{border-top:2px dashed var(--outline);margin-top:8px;padding-top:12px;font-size:18px;font-weight:700}
.bill-row.total>span:first-child{color:var(--on-surface)}
.bill-row.total span:last-child{color:var(--primary)}
.radio-row{display:flex;gap:8px;margin:10px 0 14px}
.radio-opt{
  flex:1;border:1.5px solid var(--outline-variant);border-radius:var(--radius-s);padding:11px;
  text-align:center;font-weight:700;background:var(--surface);color:var(--on-surface);
}
.radio-opt.selected{border-color:var(--primary);background:var(--primary-container);color:var(--on-primary-container)}

/* ---------- QR thanh toán: thẻ trắng viền rõ để quét ---------- */
.qr-card{
  background:#ffffff;color:var(--on-surface);
  border:1.5px solid var(--outline-variant);border-radius:var(--radius);padding:16px;text-align:center;
}
.qr-card-head{font-weight:700;font-size:15px;letter-spacing:.3px;display:flex;align-items:center;justify-content:center;gap:7px;color:var(--on-surface)}
.qr-card-head .ion{width:19px;height:19px;color:var(--primary)}
.qr-big-icon{color:var(--primary);display:flex;justify-content:center}
.qr-big-icon .ion{width:40px;height:40px}
.qr-box{display:flex;justify-content:center;margin:6px 0 10px}
.qr-box svg{width:min(68vw,264px);height:auto;display:block}
.qr-amount{font-size:25px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums}
.qr-meta{font-size:14px;color:var(--on-variant);line-height:1.6;margin-top:4px}
.qr-meta b{color:var(--on-surface)}
.qr-content{display:inline-block;margin-top:8px;background:var(--warn-soft);color:var(--warn);font-weight:700;font-size:13.5px;border-radius:var(--radius-xs);padding:5px 10px}
.qr-card .note{color:var(--on-variant)}
.qr-card .note b{color:var(--on-surface)}
.countdown{
  margin-top:12px;background:var(--warn-soft);border:1px solid var(--warn-container);color:var(--warn);
  border-radius:var(--radius-s);padding:11px 12px;font-weight:700;font-size:15px;text-align:center;
  display:flex;align-items:center;justify-content:center;gap:7px;flex-wrap:wrap;
}
.countdown b{font-variant-numeric:tabular-nums;font-size:17px}
.countdown.urgent{background:var(--error-container);border-color:#f0cfcb;color:var(--on-error-container)}

/* ---------- Thanh điều hướng dưới: M3 Navigation Bar trắng ---------- */
.bottom-nav{
  position:fixed;left:0;right:0;bottom:0;z-index:20;
  display:flex;padding:8px 8px calc(8px + env(safe-area-inset-bottom));
  background:var(--surface);
  border-top:1px solid var(--outline-variant);
}
.bottom-nav{max-width:none}
.nav-btn{
  flex:1;border:0;background:none;padding:4px 2px 2px;font-size:12.5px;font-weight:600;
  color:var(--on-variant);display:flex;flex-direction:column;align-items:center;gap:4px;
  min-height:58px;border-radius:var(--radius-m);justify-content:center;
}
.nav-ico{
  display:flex;align-items:center;justify-content:center;
  width:56px;height:32px;color:var(--on-variant);
  transition:color .18s ease;
}
.nav-ico .ico-solid{display:none}
.nav-btn.active{color:var(--on-surface);font-weight:700}
/* Tab đang chọn: icon ĐẶC xanh đậm + chữ đậm, KHÔNG pill nền — đúng kiểu app chấm công */
.nav-btn.active .nav-ico{color:var(--primary)}
.nav-btn.active .ico-solid{display:block}
.nav-btn.active .ico-outline{display:none}

/* ---------- Sheet trắng trượt lên ---------- */
.overlay{
  position:fixed;inset:0;z-index:40;display:flex;align-items:flex-end;justify-content:center;
  background:rgba(16,28,24,.5);
}
.overlay[hidden]{display:none}
.card[hidden]{display:none}
/* Thẻ thông báo dạng công tắc M3 (v6.8): chỉ 1 hàng, không ghi chú */
.notify-card{padding:16px 18px}
.notify-row{display:flex;align-items:center;gap:12px}
.notify-ico{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:var(--primary-container);color:var(--on-primary-container);flex-shrink:0}
.notify-ico .ion{width:21px;height:21px}
.notify-label{flex:1;font-size:15px;font-weight:600;color:var(--on-surface);line-height:1.35}
.switch{position:relative;display:inline-block;flex-shrink:0;cursor:pointer;-webkit-tap-highlight-color:transparent}
.switch input{position:absolute;opacity:0;width:100%;height:100%;margin:0;cursor:pointer}
.switch .track{display:block;width:52px;height:32px;border-radius:999px;background:var(--surface-container);border:2px solid var(--outline);position:relative;transition:background-color .18s ease,border-color .18s ease}
.switch .thumb{position:absolute;top:50%;left:8px;transform:translateY(-50%);width:16px;height:16px;border-radius:50%;background:var(--outline);transition:left .18s ease,width .18s ease,height .18s ease,background-color .18s ease}
.switch input:checked + .track{background:var(--primary);border-color:var(--primary)}
.switch input:checked + .track .thumb{left:calc(100% - 28px);width:24px;height:24px;background:#fff}
.switch input:disabled + .track{opacity:.45}
.switch input:focus-visible + .track{box-shadow:0 0 0 3px var(--primary-container)}

/* Thẻ thông tin app ở cuối Cài đặt (v6.7): chỉ phiên bản + tác giả, không lịch sử */
.app-info-card{text-align:center;padding:22px 18px}
.app-info-logo{height:44px;max-width:160px;object-fit:contain;margin-bottom:10px}
.app-info-version{margin:0;font-size:15px;font-weight:700;color:var(--on-surface)}
.app-info-build{margin:3px 0 0;font-size:13.5px;font-weight:500;color:var(--on-variant)}

.toast[hidden]{display:none}
@media(min-width:720px){.overlay{align-items:center;padding:20px}}
.sheet{
  background:var(--surface);
  width:100%;max-width:560px;max-height:92dvh;overflow-y:auto;
  border-radius:28px 28px 0 0;padding:10px 18px calc(18px + env(safe-area-inset-bottom));
  box-shadow:var(--shadow-up);
  color:var(--on-surface);
}
@media(min-width:720px){.sheet{border-radius:28px}}
.sheet::before{content:"";display:block;width:44px;height:5px;border-radius:3px;background:var(--outline);margin:2px auto 12px}
.sheet-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;gap:10px}
.sheet-head h3{font-size:18.5px;font-weight:700}
.sheet-actions{display:flex;flex-direction:column;gap:10px;margin-top:14px}

/* ---------- Toast: M3 snackbar ---------- */
.toast{
  position:fixed;left:50%;transform:translateX(-50%);bottom:calc(96px + env(safe-area-inset-bottom));
  background:#1d2b27;color:#eef5f2;
  padding:12px 18px;border-radius:var(--radius-xs);font-size:14.5px;font-weight:600;
  z-index:60;box-shadow:0 14px 30px rgba(11,40,32,.35);
  max-width:92vw;text-align:center;line-height:1.45;
}
.add-service-row{margin-top:6px}

/* ---------- Hướng dẫn cài app trên iOS (Safari không cho cài 1 chạm) ---------- */
.install-steps{display:flex;flex-direction:column;gap:12px;margin-top:4px}
.step-row{display:flex;gap:12px;align-items:flex-start;background:var(--surface-low);border:1px solid var(--outline-variant);border-radius:var(--radius-m);padding:13px 14px}
.step-num{width:30px;height:30px;border-radius:50%;background:var(--primary);color:#fff;font-weight:700;font-size:15px;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:1px}
.step-body{flex:1;min-width:0;font-size:15px;line-height:1.5}
.step-body b{font-weight:700}
.step-body .sub2{font-size:13.5px;color:var(--on-variant);margin-top:2px}
.share-demo{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:50%;background:var(--primary-container);color:var(--on-primary-container);vertical-align:-14px;margin:0 2px;position:relative}
.share-demo .ion{width:24px;height:24px;vertical-align:0}
.share-demo::after{content:"";position:absolute;inset:-6px;border-radius:50%;border:2px solid var(--primary);opacity:.55;animation:pulseRing 1.6s ease-out infinite}
@keyframes pulseRing{0%{transform:scale(.82);opacity:.7}70%{transform:scale(1.12);opacity:0}100%{transform:scale(1.12);opacity:0}}
.addhome-demo{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--outline-variant);border-radius:var(--radius-xs);padding:9px 12px;margin-top:8px;font-weight:600;font-size:14.5px}
.addhome-demo .plus-box{width:30px;height:30px;border:1.5px solid var(--outline);border-radius:9px;display:flex;align-items:center;justify-content:center;color:var(--on-surface);flex-shrink:0}
.addhome-demo .plus-box .ion{width:17px;height:17px}
.addhome-demo img{width:30px;height:30px;border-radius:8px;object-fit:contain;border:1px solid var(--outline-variant);background:#fff;padding:2px;flex-shrink:0}
.install-warn{background:var(--warn-soft);border:1px solid var(--warn-container);color:var(--warn);border-radius:var(--radius-m);padding:12px 14px;font-size:14.5px;line-height:1.55}
.install-warn b{color:var(--warn)}

/* ---------- Màn hình mở app (splash) ---------- */
#splash{position:fixed;inset:0;z-index:200;background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;transition:opacity .4s ease}
#splash.hide{opacity:0;pointer-events:none}
.splash-logo{width:150px;max-width:55vw;object-fit:contain}
.splash-name{font-size:21px;font-weight:700;letter-spacing:2.5px;color:var(--on-surface);margin-top:10px}
.splash-sub{font-size:14px;font-weight:500;color:var(--on-variant)}
.splash-bar{width:130px;height:4px;border-radius:999px;background:var(--surface-container);overflow:hidden;margin-top:20px}
.splash-bar span{display:block;height:100%;width:40%;border-radius:999px;background:var(--primary);animation:splashSlide 1.1s ease-in-out infinite}
@keyframes splashSlide{0%{transform:translateX(-110%)}100%{transform:translateX(340%)}}

/* ---------- Thẻ Hôm nay (đầu tab Phòng) ---------- */
.today-card{background:var(--primary-container);border-radius:var(--radius-l);padding:14px 16px;margin-bottom:14px}
.today-head{display:flex;align-items:center;gap:8px;font-size:15.5px;font-weight:700;color:var(--on-primary-container);margin-bottom:6px}
.today-head .ion{width:20px;height:20px}
.today-head .today-count{margin-left:auto;background:var(--primary);color:#fff;font-size:12.5px;font-weight:700;min-width:24px;height:24px;border-radius:999px;display:flex;align-items:center;justify-content:center;padding:0 7px}
.today-item{display:flex;align-items:center;gap:11px;width:100%;text-align:left;background:#fff;border:none;border-radius:var(--radius-m);padding:11px 13px;margin-top:8px;cursor:pointer;font-family:inherit;transition:transform .12s ease}
.today-item:active{transform:scale(.98)}
.today-item .t-ico{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;background:var(--surface-container);color:var(--primary);flex-shrink:0}
.today-item .t-ico .ion{width:20px;height:20px}
.today-item .t-main{flex:1;min-width:0}
.today-item .t-title{font-size:15px;font-weight:700;color:var(--on-surface)}
.today-item .t-sub{font-size:13.5px;font-weight:500;color:var(--on-variant);margin-top:1px}
.today-item .t-arrow{color:var(--outline);flex-shrink:0}
.today-item .t-arrow .ion{width:19px;height:19px}

/* ---------- Hoá đơn (bản xem trong app + bản in) ---------- */
.invoice-paper{background:#fff;border:1px solid var(--outline-variant);border-radius:var(--radius-m);padding:20px 18px;color:#14201b}
.invoice-paper .inv-logo{display:block;height:46px;max-width:170px;object-fit:contain;margin:0 auto 4px}
.invoice-paper .inv-name{text-align:center;font-size:17px;font-weight:700;letter-spacing:1.6px}
.invoice-paper .inv-title{text-align:center;font-size:13px;font-weight:700;letter-spacing:2.2px;color:var(--primary);margin-top:8px}
.invoice-paper .inv-meta{margin-top:12px;font-size:13.5px;line-height:1.65}
.invoice-paper .inv-meta b{font-weight:700}
.invoice-paper .inv-sep{border-top:1.5px dashed #c8d4ce;margin:12px 0}
.invoice-paper .inv-row{display:flex;justify-content:space-between;gap:14px;font-size:14px;padding:3.5px 0}
.invoice-paper .inv-row .l{color:#33413b}
.invoice-paper .inv-row .r{font-weight:600;text-align:right;white-space:nowrap}
.invoice-paper .inv-row.head{font-weight:700;color:var(--on-surface)}
.invoice-paper .inv-total{display:flex;justify-content:space-between;align-items:center;border-top:2px solid #14201b;margin-top:10px;padding-top:10px;font-size:16px;font-weight:700}
.invoice-paper .inv-total .r{font-size:19px;color:var(--primary)}
.invoice-paper .inv-foot{text-align:center;font-size:13px;color:#5c6f66;margin-top:14px;line-height:1.6}
.invoice-paper .inv-qr{text-align:center}
.invoice-paper .inv-qr-head{font-size:13px;font-weight:700;letter-spacing:2px;color:var(--primary)}
.invoice-paper .inv-qr-img{width:180px;height:180px;object-fit:contain;display:block;margin:10px auto 4px}
.invoice-paper .inv-qr-box{width:190px;margin:10px auto 4px}
.invoice-paper .inv-qr-box svg{width:100%;height:auto;display:block}
.invoice-paper .inv-qr-amt{font-size:19px;font-weight:700;color:var(--primary)}
.invoice-paper .inv-qr-note{font-size:12.5px;color:#5c6f66;line-height:1.55;margin-top:2px}
#printArea{display:none}
@media print{
  body>*{display:none !important}
  body>#printArea{display:block !important}
  #printArea .invoice-paper{border:none;border-radius:0;padding:8px}
}

/* ---------- Lịch phòng trống ---------- */
.cal-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:10px}
.cal-head .btn{flex-shrink:0;padding:8px 11px;font-size:13px;white-space:nowrap}
.cal-title{font-size:16.5px;font-weight:700;white-space:nowrap}
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}
.cal-dow{text-align:center;font-size:12px;font-weight:700;color:var(--on-variant);padding:4px 0}
.cal-day{border:1.5px solid var(--outline-variant);background:#fff;border-radius:12px;padding:6px 2px 5px;cursor:pointer;font-family:inherit;display:flex;flex-direction:column;align-items:center;gap:1px;min-height:52px;transition:transform .12s ease,border-color .15s ease}
.cal-day:active{transform:scale(.95)}
.cal-day .d-num{font-size:14.5px;font-weight:700;color:var(--on-surface)}
.cal-day .d-free{font-size:11px;font-weight:600;color:var(--primary)}
.cal-day.full{border-color:var(--busy);background:#fdf1f1}
.cal-day.full .d-free{color:var(--busy)}
.cal-day.today{border-color:var(--primary);box-shadow:0 0 0 1.5px var(--primary)}
.cal-day.dim{opacity:.35;pointer-events:none}
.cal-day .d-book{font-size:10.5px;font-weight:600;color:var(--warn)}
.cal-legend{display:flex;gap:14px;flex-wrap:wrap;margin-top:12px;font-size:12.5px;font-weight:600;color:var(--on-variant)}
.cal-legend .dot{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:5px}
.cal-legend .dot.free{background:#0e7a55}
.cal-legend .dot.busy{background:var(--busy)}
.cal-unit-row{display:flex;align-items:center;gap:11px;padding:11px 2px;border-bottom:1px solid var(--outline-variant)}
.cal-unit-row:last-child{border-bottom:none}
.cal-unit-row .u-ico{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;background:var(--surface-container);color:var(--primary);flex-shrink:0}
.cal-unit-row .u-ico .ion{width:20px;height:20px}
.cal-unit-row .u-main{flex:1;min-width:0}
.cal-unit-row .u-name{font-size:15px;font-weight:700}
.cal-unit-row .u-sub{font-size:13px;font-weight:500;color:var(--on-variant)}
.cal-unit-row .u-tag{font-size:12px;font-weight:700;padding:5px 10px;border-radius:999px;flex-shrink:0}
.cal-unit-row .u-tag.free{background:var(--primary-container);color:var(--on-primary-container)}
.cal-unit-row .u-tag.busy{background:#fbe3e3;color:var(--busy)}
.cal-unit-row .u-tag.booked{background:var(--warn-container);color:var(--warn)}