/* ===== iOS theme tokens — light (default, ตามระบบ) ===== */
:root{
  --navy:#e5e5ea;            /* secondary/hover surface */
  --navy-deep:#f2f2f7;       /* page bg (iOS grouped) */
  --navy-card:#ffffff;       /* card/cell */
  --navy-card-2:#ffffff;     /* card gradient top (แบนใน light) */
  --navy-input:#f2f2f5;      /* field bg */
  --gold:#b0781a;
  --gold-dim:#8a5d10;
  --gold-soft:rgba(176,120,26,.12);
  --gold-lite:#d89a2a;
  --green:#2ca24a;
  --green-soft:rgba(44,162,74,.12);
  --green-border:rgba(44,162,74,.5);
  --danger:#e0362b;
  --danger-soft:rgba(224,54,43,.1);
  --text:#1c1c1e;
  --text-dim:#8a8a8e;
  --text-mute:#aeaeb2;
  --border:rgba(60,60,67,.16);
  --bar:rgba(249,249,251,.82);     /* translucent tab bar */
  --radius:16px;
  --shadow:0 1px 3px rgba(0,0,0,.06),0 10px 26px rgba(0,0,0,.06);
  --fs-cap:13.5px; --fs-body:15px; --fs-title:18px; --fs-head:22px; --fs-display:28px;
}
/* ===== dark = โทนกรมท่า (navy) แบรนด์เดิม ===== */
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --navy:#1a3c5e; --navy-deep:#0e2740; --navy-card:#16314d; --navy-card-2:#1d3c5d; --navy-input:#0c2138;
  --gold:#f3b23f; --gold-dim:#c98715; --gold-soft:rgba(243,178,63,.15); --gold-lite:#f4c25f;
  --green:#33c46f; --green-soft:rgba(51,196,111,.13); --green-border:rgba(51,196,111,.55);
  --danger:#e8604c; --danger-soft:rgba(232,96,76,.12);
  --text:#eaf2fb; --text-dim:#b8cdda; --text-mute:#aebfd0; --border:rgba(255,255,255,.09);
  --bar:rgba(14,39,64,.82);
  --shadow:0 2px 6px rgba(0,0,0,.28),0 10px 26px rgba(0,0,0,.22);
}}
:root[data-theme="dark"]{
  --navy:#1a3c5e; --navy-deep:#0e2740; --navy-card:#16314d; --navy-card-2:#1d3c5d; --navy-input:#0c2138;
  --gold:#f3b23f; --gold-dim:#c98715; --gold-soft:rgba(243,178,63,.15); --gold-lite:#f4c25f;
  --green:#33c46f; --green-soft:rgba(51,196,111,.13); --green-border:rgba(51,196,111,.55);
  --danger:#e8604c; --danger-soft:rgba(232,96,76,.12);
  --text:#eaf2fb; --text-dim:#b8cdda; --text-mute:#aebfd0; --border:rgba(255,255,255,.09);
  --bar:rgba(14,39,64,.82);
  --shadow:0 2px 6px rgba(0,0,0,.28),0 10px 26px rgba(0,0,0,.22);
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{background:var(--navy-deep);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,'Sarabun',system-ui,sans-serif;font-size:16px;line-height:1.5}
body{min-height:100vh;padding-bottom:env(safe-area-inset-bottom)}
h1,h2,h3,.font-head{font-family:-apple-system,'Prompt',system-ui,sans-serif;font-weight:700;letter-spacing:-.3px}
.app{max-width:680px;margin:0 auto;padding:0 14px calc(88px + env(safe-area-inset-bottom))}

/* ===== Header (large-title iOS) ===== */
.topbar{padding:22px 4px 14px;display:flex;align-items:center;gap:12px;margin-bottom:6px}
.brand-badge{width:46px;height:46px;border-radius:13px;background:linear-gradient(135deg,var(--gold),var(--gold-lite));display:grid;place-items:center;font-size:24px;box-shadow:0 6px 16px rgba(176,120,26,.28);flex-shrink:0}
.brand-txt small{display:block;font-size:var(--fs-cap);letter-spacing:3px;color:var(--gold);font-weight:600}
.brand-txt h1{font-size:var(--fs-head);line-height:1.15}
.brand-apt{font-size:var(--fs-cap);color:var(--text-dim);margin-top:2px}
.nav-brand{display:none}

/* ===== Tabs (iOS translucent tab bar) ===== */
.bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:50;display:flex;gap:4px;background:var(--bar);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);padding:7px 8px calc(7px + env(safe-area-inset-bottom));border-top:.5px solid var(--border);box-shadow:none}
.bottom-nav .tab-btn{flex-direction:column;gap:3px;font-size:var(--fs-cap);padding:7px 2px;min-height:54px;border-radius:13px;color:var(--text-dim)}
.bottom-nav .tab-btn .ic{font-size:21px;line-height:1}
.bottom-nav .tab-btn.active{background:var(--gold-soft);color:var(--gold);box-shadow:none}
.tab-btn{flex:1;border:none;background:transparent;color:var(--text-dim);font-family:-apple-system,'Prompt',system-ui,sans-serif;font-weight:500;font-size:var(--fs-body);padding:11px 3px;border-radius:10px;cursor:pointer;transition:.18s;display:flex;align-items:center;justify-content:center;gap:4px;white-space:nowrap}
.tab-btn.active{background:var(--gold);color:#fff;box-shadow:0 4px 14px rgba(176,120,26,.28)}
.tab-btn:not(.active):hover{background:var(--navy);color:var(--text)}

/* ===== Cards ===== */
.card{background:linear-gradient(180deg,var(--navy-card-2),var(--navy-card));border:1px solid var(--border);border-radius:var(--radius);padding:18px;margin-bottom:16px;box-shadow:var(--shadow)}
.card-title{display:flex;align-items:center;gap:9px;font-size:var(--fs-title);color:var(--gold);margin-bottom:14px;font-family:'Prompt',sans-serif;font-weight:600}
.card-title .ic{font-size:19px}
.hr{height:1px;background:var(--border);margin:14px -18px}

/* ===== Form ===== */
.field{margin-bottom:13px}
.field:last-child{margin-bottom:0}
label{display:block;font-size:var(--fs-cap);color:var(--text-dim);margin-bottom:6px;font-weight:500}
input,select{width:100%;background:var(--navy-input);border:1.5px solid var(--border);border-radius:11px;color:var(--text);font-family:'Sarabun',sans-serif;font-size:16px;padding:13px 14px;transition:.15s;outline:none}
input::placeholder{color:var(--text-mute)}
/* ซ่อนลูกศรปรับเลขของช่อง number (กันกดพลาด/หน้าตารก) */
input[type=number]::-webkit-outer-spin-button,input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
input[type=number]{-moz-appearance:textfield;appearance:textfield}
input:focus,select:focus{border-color:var(--gold);box-shadow:0 0 0 3px var(--gold-soft);background:var(--navy-card)}
select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%239cb2c9' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:38px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:11px}
.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:11px}
input.locked{border-color:var(--green-border);background:var(--green-soft);color:var(--green);font-weight:600;cursor:not-allowed}

/* month nav */
.month-nav{display:flex;align-items:center;gap:8px}
.month-nav select{flex:1}
.mn-arrow{width:46px;height:46px;flex-shrink:0;border-radius:11px;border:1.5px solid var(--border);background:var(--navy-input);color:var(--gold);font-size:20px;cursor:pointer;display:grid;place-items:center;transition:.15s}
.mn-arrow:hover{background:var(--gold-soft);border-color:var(--gold)}

/* meter banner */
.banner{display:flex;align-items:center;gap:10px;flex-wrap:wrap;background:var(--green-soft);border:1px solid var(--green-border);border-radius:11px;padding:10px 12px;margin-bottom:13px;font-size:var(--fs-cap);color:var(--text)}
.banner .b-txt{flex:1;min-width:160px;line-height:1.4}
.banner button{background:var(--navy-card);border:1px solid var(--border);color:var(--text);font-size:var(--fs-cap);padding:7px 12px;border-radius:8px;cursor:pointer;font-family:'Prompt',sans-serif;white-space:nowrap}
.banner button:hover{background:var(--navy)}
.banner.edit{background:var(--gold-soft);border-color:var(--gold);color:var(--text)}

/* meter result note */
.meter-note{margin-top:8px;font-size:var(--fs-body);color:var(--text);background:var(--navy-input);border-radius:9px;padding:9px 12px;display:flex;justify-content:space-between;align-items:center;gap:8px}
/* meter photo (เฟส 1: ถ่ายรูปมิเตอร์เก็บหลักฐาน) */
.meter-photo{margin-top:10px}
.photo-btn{width:100%;padding:11px;border:1.5px dashed var(--gold);border-radius:11px;background:rgba(232,160,32,.09);color:var(--gold);font-family:'Prompt',sans-serif;font-weight:500;font-size:14px;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px}
.photo-btn:active{background:rgba(232,160,32,.18)}
.photo-thumb{margin-top:10px;position:relative;border-radius:11px;overflow:hidden;border:1px solid rgba(255,255,255,.08)}
.photo-thumb img{width:100%;display:block;max-height:230px;object-fit:cover;cursor:zoom-in}
.photo-thumb .ph-rm{position:absolute;top:8px;right:8px;width:32px;height:32px;border-radius:50%;border:none;background:rgba(0,0,0,.62);color:#fff;font-size:15px;cursor:pointer;display:grid;place-items:center;line-height:1}
.photo-thumb .ph-tag{position:absolute;left:8px;bottom:8px;background:rgba(0,0,0,.62);color:#fff;font-size:11.5px;padding:3px 9px;border-radius:7px}
/* building manager (Stage 1: อัตรา/ค่าบริการแยกรายตึก) */
.bld-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:12px;margin-bottom:11px}
.bld-head{display:flex;gap:8px;align-items:center;margin-bottom:10px}
.bld-name{flex:1;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:9px;padding:9px 11px;color:var(--text);font-family:'Prompt',sans-serif;font-weight:600;font-size:var(--fs-body)}
.bld-del{background:none;border:none;font-size:18px;cursor:pointer;padding:6px;line-height:1}
.bchg-title{font-size:var(--fs-cap);color:var(--gold);font-weight:600;margin:12px 0 7px}
.bchg-row{display:flex;gap:7px;margin-bottom:7px}
.bchg-row input{flex:1;min-width:0;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09);border-radius:8px;padding:8px 10px;color:var(--text);font-family:inherit;font-size:var(--fs-cap)}
.bchg-row input.amt{flex:0 0 90px;text-align:right}
.bchg-row .x-btn{background:none;border:none;color:#e8604c;font-size:15px;cursor:pointer;padding:0 4px}
.bchg-add,.bld-add{background:rgba(232,160,32,.1);border:1px dashed var(--gold);color:var(--gold);border-radius:9px;padding:9px;font-family:'Prompt',sans-serif;font-weight:500;font-size:var(--fs-cap);cursor:pointer;width:100%;margin-top:4px}
.bld-add{margin-top:6px;font-size:var(--fs-body)}
.meter-note .u{color:var(--text-dim)}
.meter-note .c{font-family:'Prompt',sans-serif;font-weight:600;color:var(--gold)}
.meter-note.warn{background:var(--danger-soft);color:var(--danger)}
.meter-note.warn .c{color:var(--danger)}
.rate-row{display:flex;align-items:center;gap:8px;margin-top:10px}
.rate-row label{margin:0;font-size:var(--fs-cap);white-space:nowrap}
.rate-row input{width:90px;padding:9px 11px;text-align:center;font-size:var(--fs-body)}
.rate-row .unit{font-size:var(--fs-cap);color:var(--text-dim)}

/* extras */
.extra-row{display:grid;grid-template-columns:1fr 130px 42px;gap:9px;margin-bottom:10px;align-items:center}
.extra-row input{padding:11px 12px}
.extra-row .amt{text-align:right}
.x-btn{width:42px;height:46px;border-radius:11px;border:1px solid var(--danger);background:var(--danger-soft);color:var(--danger);font-size:18px;cursor:pointer;display:grid;place-items:center;transition:.15s}
.x-btn:hover{background:var(--danger);color:#fff}
.add-btn{width:100%;border:1.5px dashed rgba(232,160,32,.5);background:transparent;color:var(--gold);font-family:'Prompt',sans-serif;font-weight:500;font-size:var(--fs-body);padding:12px;border-radius:11px;cursor:pointer;transition:.15s;margin-top:4px}
.add-btn:hover{background:var(--gold-soft);border-style:solid}

/* summary */
.sum-table{width:100%;border-collapse:collapse}
.sum-table td{padding:11px 2px;border-bottom:1px dashed var(--border);font-size:var(--fs-body)}
.sum-table td:last-child{text-align:right;font-weight:600;font-family:'Prompt',sans-serif;white-space:nowrap}
.sum-table .lbl-sub{color:var(--text-dim);font-size:var(--fs-cap);display:block;margin-top:1px}
.sum-total{display:flex;justify-content:space-between;align-items:center;background:linear-gradient(135deg,var(--gold),var(--gold-lite));color:#1a1206;border-radius:13px;padding:15px 18px;margin-top:14px}
.sum-total .lab{font-family:'Prompt',sans-serif;font-weight:600;font-size:var(--fs-body)}
.sum-total .val{font-family:'Prompt',sans-serif;font-weight:700;font-size:var(--fs-display)}

/* action buttons */
.actions{display:flex;flex-direction:column;gap:10px;margin-top:4px}
.btn{border:none;border-radius:13px;font-family:'Prompt',sans-serif;font-weight:600;font-size:var(--fs-body);padding:15px;cursor:pointer;transition:.16s;display:flex;align-items:center;justify-content:center;gap:9px}
.btn:active{transform:scale(.98)}
.btn-pdf{background:linear-gradient(135deg,var(--gold),var(--gold-lite));color:#1a1206;box-shadow:0 6px 18px rgba(232,160,32,.3)}
.btn-pdf:hover{filter:brightness(1.05)}
.btn-rcpt{background:var(--navy-card-2);color:var(--text);border:1.5px solid var(--gold)}
.btn-rcpt:hover{background:var(--navy);border-color:var(--gold-lite)}
.btn:disabled{opacity:.55;cursor:default;filter:none}
.btn-save{background:var(--green);color:#06210f;box-shadow:0 6px 18px rgba(51,196,111,.25)}
.btn-save:hover{filter:brightness(1.06)}
.btn-new{background:rgba(255,255,255,.06);color:var(--text-dim);border:1px solid var(--border);font-size:var(--fs-body);padding:12px}
.btn-new:hover{background:rgba(255,255,255,.1);color:var(--text)}
.btn-row{display:flex;gap:10px}
.bill-back{display:inline-flex;align-items:center;gap:4px;background:rgba(255,255,255,.06);border:1px solid var(--border);color:var(--text-dim);font-family:'Prompt',sans-serif;font-size:var(--fs-body);font-weight:500;padding:9px 16px;border-radius:11px;cursor:pointer;margin-bottom:14px}
.bill-back:hover{background:rgba(255,255,255,.1);color:var(--text)}
.bill-back .ic{font-size:20px;line-height:1}
.btn-row .btn{flex:1}

/* history */
.hist-item{background:linear-gradient(180deg,var(--navy-card-2),var(--navy-card));border:1px solid var(--border);border-radius:14px;padding:15px 16px;margin-bottom:11px;transition:.15s}
.hist-item:hover{border-color:rgba(232,160,32,.4)}
.hist-top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px}
.hist-room{font-family:'Prompt',sans-serif;font-weight:600;font-size:var(--fs-title);color:var(--gold)}
.hist-meta{font-size:var(--fs-cap);color:var(--text-dim);margin-top:2px}
.hist-tenant{font-size:var(--fs-cap);color:var(--text);margin-top:3px}
.hist-total{font-family:'Prompt',sans-serif;font-weight:700;font-size:var(--fs-title);color:var(--green);white-space:nowrap}
.hist-actions{display:flex;gap:8px;margin-top:12px}
.hist-actions button{flex:1;border:none;border-radius:9px;font-family:'Prompt',sans-serif;font-size:var(--fs-cap);font-weight:500;padding:9px;cursor:pointer;transition:.15s}
.h-load{background:var(--gold-soft);color:var(--gold);border:1px solid rgba(232,160,32,.35)!important}
.h-load:hover{background:var(--gold);color:#1a1206}
.h-pdf{background:rgba(255,255,255,.06);color:var(--text);border:1px solid var(--border)!important;flex:0 0 46px!important}
.h-pdf:hover{background:rgba(255,255,255,.12)}
.h-del{background:var(--danger-soft);color:var(--danger);border:1px solid rgba(232,96,76,.35)!important;flex:0 0 46px!important}
.h-del:hover{background:var(--danger);color:#fff}
.empty{text-align:center;padding:50px 20px;color:var(--text-mute)}
.empty .e-ic{font-size:48px;margin-bottom:12px;opacity:.5}
.hist-search{margin-bottom:14px}
/* ===== Dashboard ผู้บริหาร ===== */
.dash-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px}
.dash-title{font-family:'Prompt',sans-serif;font-weight:700;font-size:var(--fs-head);color:var(--gold)}
.dash-sub{font-size:var(--fs-cap);color:var(--text-dim);margin-top:2px}
.dash-head select{width:auto;min-width:120px;padding:10px 32px 10px 12px;font-size:var(--fs-body)}
.kpi-grid{display:grid;grid-template-columns:1fr 1fr;gap:11px;margin-bottom:16px}
.kpi{background:linear-gradient(180deg,var(--navy-card-2),var(--navy-card));border:1px solid var(--border);border-radius:14px;padding:15px 16px}
.kpi .k-lbl{font-size:var(--fs-cap);color:var(--text-dim)}
.kpi .k-val{font-family:'Prompt',sans-serif;font-weight:700;font-size:var(--fs-head);color:var(--gold);margin-top:3px;line-height:1.1}
.kpi .k-sub{font-size:var(--fs-cap);color:var(--text-mute);margin-top:3px}
.kpi.green .k-val{color:var(--green)}
.chart-title{font-family:'Prompt',sans-serif;font-weight:600;font-size:var(--fs-title);color:var(--text);margin-bottom:14px}
.bars{display:flex;align-items:flex-end;gap:5px;height:158px}
.bar-col{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;min-width:0}
.bar-val{font-size:11px;color:var(--text-dim);margin-bottom:4px;white-space:nowrap}
.bar{width:100%;max-width:30px;background:linear-gradient(180deg,var(--gold),var(--gold-dim));border-radius:5px 5px 0 0;min-height:3px;transform-origin:bottom;animation:barGrow .45s ease}
.bar-lbl{font-size:11px;color:var(--text-mute);margin-top:6px;white-space:nowrap}
.hbar-row{margin-bottom:12px}
.hbar-row:last-child{margin-bottom:0}
.hbar-top{display:flex;justify-content:space-between;align-items:baseline;gap:8px;font-size:var(--fs-cap);margin-bottom:5px}
.hbar-top .hb-name{color:var(--text)}
.hbar-top .hb-val{color:var(--text-dim);font-family:'Prompt',sans-serif;font-weight:600;white-space:nowrap;font-size:var(--fs-cap)}
.hbar-track{height:12px;background:rgba(255,255,255,.06);border-radius:6px;overflow:hidden}
.hbar-fill{height:100%;border-radius:6px;background:linear-gradient(90deg,var(--gold),var(--gold-lite));min-width:3px;transform-origin:left;animation:barFill .45s ease}

/* toast */
#toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%) translateY(120px);background:var(--navy-card);border:1px solid var(--gold);color:var(--text);padding:13px 22px;border-radius:13px;font-family:'Prompt',sans-serif;font-weight:500;font-size:var(--fs-body);box-shadow:0 12px 32px rgba(0,0,0,.5);z-index:100;opacity:0;transition:.3s;max-width:90%;text-align:center}
#toast.show{transform:translateX(-50%) translateY(0);opacity:1}

.hidden{display:none!important}
.help{font-size:var(--fs-cap);color:var(--text-mute);margin-top:6px;line-height:1.5}

/* ===== PDF (off-screen) ===== */
/* ใช้ position:absolute (ไม่ใช่ fixed) เพราะ html2canvas จับภาพ element ที่ fixed ไม่ครบ -> ได้ PDF ว่าง */
#pdf-content{position:absolute;left:-10000px;top:0;width:794px;background:#fff;z-index:-1}
.pdf-page{width:794px;background:#fff;color:#212529;font-family:'Sarabun',sans-serif;padding:30px 32px}
.rc-band{background:#d4edda;border-radius:18px;padding:26px 30px;display:flex;justify-content:space-between;align-items:flex-start;gap:20px}
.rc-band .col-r{text-align:right}
.rc-lbl{font-size:23px;color:#155724;font-weight:600;line-height:1.2}
.rc-big{font-family:'Prompt',sans-serif;font-weight:700;color:#155724;line-height:1.02;margin-top:2px}
.rc-top .amt{font-size:60px}
.rc-top .room{font-size:42px}
.rc-bot{margin-top:6px}
.rc-bot .amt{font-size:54px}
.rc-sign-line{border-top:2.5px solid #155724;width:210px;margin:26px 0 8px auto}
.rc-title{text-align:center;padding:36px 10px 24px}
.rc-title .s1{font-size:25px;color:#7b8794}
.rc-title .room-big{font-family:'Prompt',sans-serif;font-weight:700;font-size:64px;color:#212529;margin:4px 0;line-height:1.05}
.rc-title .s2{font-size:27px;color:#7b8794}
.rc-div{border-top:3px solid #212529;margin:0 4px}
.rc-items{padding:8px 6px 16px}
.rc-item{display:flex;justify-content:space-between;align-items:baseline;gap:16px}
.rc-item .l{color:#212529}
.rc-item .v{font-weight:700;color:#212529;white-space:nowrap}
.rc-item.big{padding:18px 0}
.rc-item.big .l,.rc-item.big .v{font-family:'Prompt',sans-serif;font-weight:700;font-size:35px}
.rc-item.sm{padding:12px 0}
.rc-item.sm .l{font-size:25px}
.rc-item.sm .v{font-size:27px;font-weight:700}
/* ===== ใบเสร็จ 80mm (ขาว-ดำ) ===== */
#receipt-content{position:absolute;left:-10000px;top:0;width:302px;background:#fff;z-index:-1}
.rcpt{width:302px;background:#fff;font-family:'Sarabun',sans-serif;color:#141414;padding:20px 18px 22px;font-size:14px;line-height:1.5}
.rcpt-name{text-align:center;font-family:'Prompt',sans-serif;font-weight:700;font-size:19px;line-height:1.2;letter-spacing:.2px;color:#141414}
.rcpt-addr{text-align:center;font-size:11px;color:#666;margin-top:4px;line-height:1.5}
.rcpt-cap{text-align:center;font-family:'Prompt',sans-serif;font-weight:600;font-size:14px;letter-spacing:2px;margin-top:12px;color:#141414}
.rcpt-hr-d{border-top:1.5px dashed #bbb;margin:11px 0}
.rcpt-kv{display:flex;justify-content:space-between;gap:8px;font-size:12.5px;padding:2px 0}
.rcpt-kv span{color:#666}
.rcpt-kv b{color:#141414;font-weight:700}
.rcpt-li{display:flex;justify-content:space-between;gap:10px;align-items:baseline;margin:9px 0;font-size:13.5px;color:#141414}
.rcpt-li .d{flex:1}
.rcpt-li .d small{display:block;color:#999;font-size:10.5px;margin-top:1px}
.rcpt-li .m{font-weight:700;white-space:nowrap;color:#141414}
.rcpt-total-box{display:flex;justify-content:space-between;align-items:baseline;background:#e8f5ec;border-radius:10px;padding:12px 15px;margin-top:12px}
.rcpt-total-box span:first-child{font-family:'Prompt',sans-serif;font-weight:600;font-size:14px;color:#15803d}
.rcpt-total-box span:last-child{font-family:'Prompt',sans-serif;font-weight:800;font-size:24px;color:#15803d;white-space:nowrap}
.rcpt-sign{margin-top:22px;text-align:center}
.rcpt-sign .ln{border-top:1px dotted #999;width:70%;margin:0 auto 5px}
.rcpt-sign .role{font-size:11px;color:#666}
.rcpt-foot{text-align:center;font-size:11px;color:#888;margin-top:16px}

@media(max-width:480px){
  .grid3{grid-template-columns:1fr 1fr}
  .extra-row{grid-template-columns:1fr 105px 42px}
  .sum-total .val{font-size:24px}
  .topbar{padding-top:16px}
}
/* ============ DESKTOP (≥980px): เลย์เอาต์เดสก์ท็อป — แถบเมนูด้านซ้าย + เนื้อหากว้างขึ้น ============ */
@media(min-width:980px){
  body{padding-bottom:0;background:radial-gradient(1200px 700px at 100% -10%,rgba(232,160,32,.07),transparent 55%),radial-gradient(1000px 600px at -10% 0%,rgba(26,60,94,.55),transparent 55%),var(--navy-deep)}
  .app{
    max-width:1280px;display:grid;grid-template-columns:252px minmax(0,1fr);
    column-gap:32px;align-items:start;padding:26px 36px 52px;
  }
  /* โลโก้ย้ายไปอยู่บน sidebar แล้ว -> ซ่อนหัวเรื่องด้านบนบนเดสก์ท็อป */
  .topbar{display:none}
  /* แถบเมนูซ้าย (เดิมเป็น bottom-nav) -> sidebar แนวตั้ง ติดบนเวลาเลื่อน */
  .bottom-nav{
    position:sticky;top:20px;grid-column:1;grid-row:1;align-self:start;
    flex-direction:column;gap:6px;height:auto;
    padding:16px 14px;border-top:none;border-radius:18px;
    background:rgba(12,33,56,.55);backdrop-filter:blur(8px);box-shadow:var(--shadow)
  }
  /* โลโก้บน sidebar */
  .nav-brand{display:flex;align-items:center;gap:11px;padding:6px 8px 14px;margin-bottom:8px;border-bottom:1px solid var(--border)}
  .nav-brand .brand-badge{width:42px;height:42px;flex-shrink:0}
  .nav-brand-txt h2{font-family:'Prompt',sans-serif;font-weight:600;font-size:var(--fs-title);color:var(--text);line-height:1.1}
  .nav-brand-txt small{display:block;font-size:var(--fs-cap);color:var(--gold);margin-top:2px;word-break:break-word}
  .bottom-nav .tab-btn{
    flex:none;flex-direction:row;justify-content:flex-start;gap:13px;
    width:100%;min-height:50px;padding:13px 16px;font-size:var(--fs-body);border-radius:12px
  }
  .bottom-nav .tab-btn .ic{font-size:20px}
  .bottom-nav .tab-btn .ic svg{width:22px;height:22px}
  .bottom-nav .tab-btn:hover:not(.active){background:rgba(255,255,255,.05);color:var(--text)}
  /* เนื้อหาอยู่คอลัมน์ขวา */
  section{grid-column:2;grid-row:1}
  /* ฟอร์มจำกัดความกว้างให้อ่านสบาย ส่วนรายการให้กว้างเต็ม */
  #tab-bill,#tab-settings{max-width:760px}
  /* ห้อง & ประวัติ -> กริดหลายคอลัมน์อัตโนมัติตามความกว้าง */
  #roomsList{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:12px}
  #histList{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:14px;align-items:start}
  #roomsList .room-row,#histList .hist-item{margin-bottom:0}
  .room-row{cursor:pointer}
  .room-row:hover{border-color:rgba(232,160,32,.4)}
  /* โมดัลชำระเงินจัดกึ่งกลางบนจอใหญ่ */
  .pay-modal{align-items:center}
}
/* ============ DESKTOP กว้างมาก (≥1400px) ============ */
@media(min-width:1400px){
  .app{max-width:1440px}
  #tab-bill{max-width:860px}
}
/* ===== Quick Wins: touch targets (≥48–56px) ===== */
.btn{min-height:56px}
input,select{min-height:52px}
.mn-arrow{width:52px;height:52px}
.x-btn{height:52px}
.hist-actions button{min-height:48px;padding:13px 8px}
.tab-btn{min-height:48px}
.banner button{min-height:42px}
/* ===== Pro SVG icons + Touch Feedback ===== */
.ic-svg{stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;display:inline-block;vertical-align:middle;width:1.1em;height:1.1em}
.card-title .ic svg{width:20px;height:20px}
.bottom-nav .tab-btn .ic svg{width:24px;height:24px}
.sub-ic{width:17px;height:17px;vertical-align:-3px;margin-right:3px}
.lbl-ic{width:15px;height:15px;vertical-align:-3px;margin-right:3px}
.btn-ic{width:18px;height:18px;vertical-align:-3px;margin-right:4px}
*{-webkit-tap-highlight-color:transparent}
button,.tab-btn,.chip,select,input,[onclick]{touch-action:manipulation}
button{position:relative;overflow:hidden}
.btn,.bottom-nav .tab-btn,.hist-actions button,.x-btn,.mn-arrow{transition:transform .09s ease, background-color .18s, color .18s, box-shadow .18s}
button:active{transform:scale(.95)}
.btn:active{transform:scale(.97)}
.bottom-nav .tab-btn:active{transform:scale(.9);background:rgba(255,255,255,.06)}
.ripple{position:absolute;border-radius:50%;background:rgba(255,255,255,.32);transform:scale(0);animation:rip .55s ease-out;pointer-events:none;z-index:1}
@keyframes rip{to{transform:scale(2.6);opacity:0}}
@keyframes barGrow{from{transform:scaleY(0)}to{transform:scaleY(1)}}
@keyframes barFill{from{transform:scaleX(0)}to{transform:scaleX(1)}}
/* ===== Rooms tab ===== */
.rooms-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px}
.rooms-title{font-family:'Prompt',sans-serif;font-weight:700;font-size:var(--fs-head);color:var(--gold);display:flex;align-items:center;gap:7px}
.rooms-count{font-size:var(--fs-cap);color:var(--text-dim);font-weight:500}
.rooms-head select{width:auto;min-width:140px}
.add-room{display:flex;gap:9px;margin-bottom:14px}
.add-room input{flex:1}
.add-room-btn{background:var(--gold);color:#1a1206;border:none;border-radius:11px;font-family:'Prompt',sans-serif;font-weight:700;font-size:var(--fs-body);padding:0 18px;min-height:52px;white-space:nowrap}
.rooms-summary{display:flex;gap:8px;margin-bottom:12px}
.rsum{flex:1;background:linear-gradient(180deg,var(--navy-card-2),var(--navy-card));border:1px solid var(--border);border-radius:12px;padding:11px 6px;text-align:center;cursor:pointer;transition:.15s}
.rsum.on{border-color:var(--gold)}
.rsum .n{font-family:'Prompt',sans-serif;font-weight:700;font-size:var(--fs-head);line-height:1}
.rsum .l{font-size:var(--fs-cap);color:var(--text-dim);margin-top:4px}
.rsum.paid .n{color:#33c46f}.rsum.due .n{color:#e8604c}.rsum.none .n{color:var(--text)}
.rooms-filters{display:flex;gap:7px;margin-bottom:12px;flex-wrap:wrap}
.rfilter{font-size:var(--fs-cap);padding:9px 14px;border-radius:20px;background:var(--navy-card);color:var(--text-dim);font-family:'Prompt',sans-serif;border:1px solid var(--border);cursor:pointer}
.rfilter.on{background:var(--gold);color:#1a1206;font-weight:700;border-color:var(--gold)}
.room-row{display:flex;align-items:center;gap:10px;background:var(--navy-card);border:1px solid var(--border);border-radius:13px;padding:13px 14px;margin-bottom:9px;cursor:pointer;min-height:62px}
.room-main{flex:1;min-width:0}
.room-name{font-family:'Prompt',sans-serif;font-weight:700;font-size:var(--fs-title);color:var(--text)}
.room-tenant{font-size:var(--fs-cap);color:var(--text-dim);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.room-right{display:flex;flex-direction:column;align-items:flex-end;gap:4px;flex-shrink:0;padding:4px 2px}
.room-amt{font-family:'Prompt',sans-serif;font-weight:700;font-size:var(--fs-body);color:var(--gold)}
.room-pill{font-size:var(--fs-cap);font-weight:600;padding:3px 9px;border-radius:20px;font-family:'Prompt',sans-serif;white-space:nowrap}
.pill-paid{background:var(--green-soft);color:var(--green);border:1px solid var(--green-border)}
.pill-due{background:var(--danger-soft);color:var(--danger);border:1px solid var(--danger)}
.pill-partial{background:var(--gold-soft);color:var(--gold);border:1px solid var(--gold)}
.pill-none{background:var(--navy);color:var(--text-dim);border:1px solid var(--border)}
.room-del{background:transparent;border:none;color:var(--text-mute);font-size:17px;padding:8px;flex-shrink:0;cursor:pointer;border-radius:8px;min-height:auto}

/* ===== lock screen (PIN) ===== */
.lock-screen{position:fixed;inset:0;z-index:9999;background:#0a1f33;display:flex;align-items:center;justify-content:center;padding:24px}
.lock-screen.hidden{display:none}
.lock-box{width:100%;max-width:320px;text-align:center}
.lock-ic{font-size:42px;margin-bottom:14px}
.lock-title{font-family:'Prompt',sans-serif;font-size:var(--fs-title);color:#e8e8e8;margin-bottom:18px}
.lock-input{width:100%;box-sizing:border-box;text-align:center;letter-spacing:8px;font-size:24px;padding:14px;border-radius:12px;border:1px solid #1a3a5a;background:#0e2740;color:#fff;margin-bottom:12px}
.lock-msg{min-height:20px;color:#e8604c;font-size:var(--fs-cap);margin-bottom:12px}
.lock-btn{width:100%;padding:14px;border:none;border-radius:12px;background:var(--gold);color:#1a1206;font-family:'Prompt',sans-serif;font-weight:600;font-size:var(--fs-body);cursor:pointer}
/* payment modal */
.pay-modal{position:fixed;inset:0;z-index:9000;background:rgba(4,12,22,.78);display:flex;align-items:flex-end;justify-content:center}
.pay-modal.hidden{display:none}
.pay-card{width:100%;max-width:520px;max-height:92vh;overflow-y:auto;background:#0e2740;border-radius:18px 18px 0 0;padding:18px 16px calc(18px + env(safe-area-inset-bottom));box-shadow:0 -8px 30px rgba(0,0,0,.5)}
@media(min-width:560px){.pay-modal{align-items:center}.pay-card{border-radius:18px}}
.pay-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}
.pay-title{font-family:'Prompt',sans-serif;font-weight:600;font-size:var(--fs-title);color:#e8e8e8}
.pay-x{background:#1a3a5a;border:none;color:#cfe0f2;width:34px;height:34px;border-radius:9px;font-size:16px;cursor:pointer}
.pay-sub{color:#9cb2c9;font-size:var(--fs-cap);margin-bottom:12px}
.pay-summary{background:#0a1f33;border:1px solid #1a3a5a;border-radius:12px;padding:10px 13px;margin-bottom:12px}
.ps-row{display:flex;justify-content:space-between;align-items:center;padding:3px 0;font-size:var(--fs-body);color:#cfe0f2}
.pay-list{margin-bottom:12px}
.pay-empty{color:#7f97ad;text-align:center;padding:14px 0;font-size:var(--fs-cap)}
.pay-item{display:flex;align-items:flex-start;gap:10px;background:#0a1f33;border:1px solid #1a3a5a;border-radius:11px;padding:10px 12px;margin-bottom:8px}
.pi-main{flex:1;min-width:0}
.pi-amt{font-family:'Prompt',sans-serif;font-weight:600;color:#e8e8e8;font-size:var(--fs-body)}
.pi-method{display:inline-block;font-family:'Sarabun',sans-serif;font-weight:400;font-size:var(--fs-cap);background:#1a3a5a;color:#9cd0ff;padding:1px 8px;border-radius:20px;margin-left:5px;vertical-align:middle}
.pi-meta{color:#9cb2c9;font-size:var(--fs-cap);margin-top:2px;word-break:break-word}
.pi-slip{margin-top:6px;max-width:84px;max-height:84px;border-radius:8px;border:1px solid #1a3a5a;cursor:pointer;display:block}
.pi-del{background:none;border:none;color:#e8604c;font-size:15px;cursor:pointer;padding:2px 4px}
.pay-form{border-top:1px dashed #1a3a5a;padding-top:12px}
.pay-fill{float:right;background:var(--gold-soft);color:var(--gold);border:1px solid var(--gold);border-radius:8px;font-family:'Sarabun',sans-serif;font-size:var(--fs-cap);font-weight:600;padding:2px 10px;cursor:pointer;min-height:0}
.slip-view{position:fixed;inset:0;z-index:9500;background:rgba(0,0,0,.92);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:18px}
.slip-view.hidden{display:none}
.slip-view img{max-width:100%;max-height:84vh;border-radius:8px}
.slip-x{position:absolute;top:14px;right:16px;width:42px;height:42px;border-radius:11px;border:none;background:rgba(255,255,255,.14);color:#fff;font-size:18px;cursor:pointer}
.slip-hint{margin-top:14px;color:rgba(255,255,255,.6);font-size:var(--fs-cap)}
/* ===== Stage B1: iOS large-title + grouped inset room list (มือถือ) ===== */
@media(max-width:979px){
  .rooms-title{font-family:-apple-system,'Prompt',sans-serif;font-weight:800;font-size:30px;letter-spacing:-.7px;color:var(--text);gap:0}
  .rooms-title .sub-ic{display:none}
  .rooms-count{font-size:15px;color:var(--text-dim);font-weight:500}
  .rooms-head{align-items:flex-end;margin-bottom:16px}
  .rooms-head select{min-width:130px}
  #roomsList{background:var(--navy-card);border:1px solid var(--border);border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}
  #roomsList .room-row{margin-bottom:0;border:none;border-radius:0;background:transparent;box-shadow:none}
  #roomsList .room-row+.room-row{border-top:.5px solid var(--border)}
  #roomsList .room-row:active{background:var(--navy-input)}
}
/* ===== Stage B2: ออกบิลเป็น bottom sheet ===== */
.sheet-scrim{position:fixed;inset:0;z-index:60;background:rgba(0,0,0,.42);opacity:0;visibility:hidden;transition:.3s}
.sheet-scrim.open{opacity:1;visibility:visible}
#tab-bill.bill-sheet{position:fixed;left:0;right:0;bottom:0;top:auto;z-index:61;max-width:560px;margin:0 auto;max-height:94vh;background:var(--navy-deep);border-radius:18px 18px 0 0;box-shadow:0 -10px 44px rgba(0,0,0,.34);transform:translateY(101%);transition:transform .4s cubic-bezier(.32,.72,0,1);overflow-y:auto;-webkit-overflow-scrolling:touch;padding:0 14px calc(16px + env(safe-area-inset-bottom));display:block}
#tab-bill.bill-sheet.open{transform:translateY(0)}
.sheet-grab{width:38px;height:5px;border-radius:3px;background:var(--text-mute);opacity:.5;margin:9px auto 2px}
.sheet-header{position:sticky;top:0;z-index:3;background:var(--navy-deep);display:flex;align-items:center;justify-content:space-between;gap:8px;padding:6px 2px 12px;margin-bottom:6px;box-shadow:0 .5px 0 var(--border)}
.sheet-header .sheet-title{font-family:-apple-system,'Prompt',sans-serif;font-weight:700;font-size:17px;color:var(--text)}
.sheet-cancel{background:none;border:none;color:var(--gold);font-family:-apple-system,'Prompt',sans-serif;font-weight:600;font-size:16px;cursor:pointer;padding:6px 2px;min-height:auto}
.sheet-sp{width:44px}
.bill-sheet .actions{position:sticky;bottom:0;background:var(--navy-deep);margin:8px -14px 0;padding:10px 14px calc(6px + env(safe-area-inset-bottom));box-shadow:0 -.5px 0 var(--border)}
/* ===== iOS tab-switch motion + active icon pop ===== */
@keyframes tabEnter{from{opacity:0;transform:translateY(9px)}to{opacity:1;transform:none}}
.tab-enter{animation:tabEnter .34s cubic-bezier(.2,.8,.2,1)}
.bottom-nav .tab-btn{transition:color .2s,background-color .25s}
.bottom-nav .tab-btn .ic{transition:transform .28s cubic-bezier(.34,1.56,.64,1)}
.bottom-nav .tab-btn.active .ic{transform:translateY(-1px) scale(1.1)}
@media(prefers-reduced-motion:reduce){.tab-enter{animation:none}.bottom-nav .tab-btn .ic{transition:none}}
/* ===== Stage B3/B4: iOS large titles + grouped inset (history) ===== */
.ios-h1{font-family:-apple-system,'Prompt',sans-serif;font-weight:800;font-size:30px;letter-spacing:-.7px;color:var(--text);margin:6px 2px 16px;line-height:1.1}
@media(max-width:979px){
  #histList{background:var(--navy-card);border:1px solid var(--border);border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}
  #histList .hist-item{margin-bottom:0;border:none;border-radius:0;background:transparent;box-shadow:none}
  #histList .hist-item+.hist-item{border-top:.5px solid var(--border)}
  .dash-title{font-size:27px;font-weight:800;letter-spacing:-.6px}
  .dash-head{align-items:flex-end}
}
/* ===== อาคาร→ห้อง drill-down + grid ===== */
.bld-back{display:inline-flex;align-items:center;gap:3px;background:none;border:none;color:var(--gold);font-family:-apple-system,'Prompt',sans-serif;font-weight:600;font-size:16px;cursor:pointer;padding:4px 2px;margin-bottom:6px;min-height:auto}
.chips{display:flex;gap:8px;overflow-x:auto;padding:2px 0 8px;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chips .chip{flex:none;border:1px solid var(--border);background:var(--navy-card);color:var(--text);font-family:-apple-system,'Prompt',sans-serif;font-weight:600;font-size:14px;padding:8px 15px;border-radius:100px;cursor:pointer}
.chips .chip.on{background:var(--gold);color:#fff;border-color:var(--gold)}
.dot{width:9px;height:9px;border-radius:50%;display:inline-block;flex:none}
.d-paid{background:var(--green)}.d-due{background:var(--danger)}.d-part{background:var(--gold)}.d-none{background:var(--text-mute)}
.bld-o-kpi{background:linear-gradient(135deg,var(--gold),var(--gold-dim));color:#fff;border-radius:16px;padding:15px 17px;margin-bottom:14px}
.bld-o-kpi .l{font-size:13px;font-weight:600;opacity:.92}
.bld-o-kpi .v{font-size:29px;font-weight:800;letter-spacing:-.6px;margin-top:3px}
.bld-o-kpi .s{font-size:12.5px;opacity:.88;margin-top:2px}
.bld-o-card{display:flex;align-items:center;gap:13px;width:100%;background:var(--navy-card);border:1px solid var(--border);border-radius:16px;padding:14px 15px;margin-bottom:11px;cursor:pointer;font-family:inherit;text-align:left;color:var(--text);box-shadow:var(--shadow)}
.bld-o-ic{width:46px;height:46px;border-radius:13px;background:var(--gold-soft);color:var(--gold);display:grid;place-items:center;flex:none}
.bld-o-ic .ic-svg{width:24px;height:24px}
.bld-o-main{flex:1;min-width:0}
.bld-o-name{font-family:-apple-system,'Prompt',sans-serif;font-weight:700;font-size:18px}
.bld-o-meta{display:flex;gap:12px;align-items:center;font-size:13px;color:var(--text-dim);margin-top:4px;font-variant-numeric:tabular-nums}
.bld-o-meta i{font-style:normal;display:inline-flex;align-items:center;gap:5px}
.bld-o-chev{color:var(--text-mute);font-size:22px;flex:none}
.rview-seg{display:flex;gap:2px;background:var(--navy-input);border-radius:10px;padding:3px;margin-bottom:12px}
.rview-seg button{flex:1;border:none;background:none;color:var(--text-dim);font-family:-apple-system,'Prompt',sans-serif;font-weight:600;font-size:13.5px;padding:8px;border-radius:8px;cursor:pointer;transition:.15s}
.rview-seg button.on{background:var(--navy-card);color:var(--text);box-shadow:0 1px 3px rgba(0,0,0,.14)}
#roomsGrid{display:grid;grid-template-columns:repeat(4,1fr);gap:9px}
.gcell{aspect-ratio:1/1;border-radius:13px;border:1px solid var(--border);background:var(--navy-card);color:var(--text);cursor:pointer;font-family:inherit;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:4px}
.gcell .gn{font-family:-apple-system,'Prompt',sans-serif;font-weight:700;font-size:15px;font-variant-numeric:tabular-nums;text-align:center;line-height:1.1;word-break:break-word}
.gcell.g-paid{background:color-mix(in srgb,var(--green) 14%,var(--navy-card));border-color:color-mix(in srgb,var(--green) 34%,transparent)}
.gcell.g-due{background:color-mix(in srgb,var(--danger) 14%,var(--navy-card));border-color:color-mix(in srgb,var(--danger) 34%,transparent)}
.gcell.g-part{background:color-mix(in srgb,var(--gold) 15%,var(--navy-card));border-color:color-mix(in srgb,var(--gold) 36%,transparent)}
/* ===== theme segmented (ตั้งค่า) ===== */
.group-h2{font-size:12.5px;font-weight:600;color:var(--text-dim);text-transform:uppercase;letter-spacing:.5px;margin:2px 2px 8px}
.seg3{position:relative;display:flex;margin:0 0 6px;background:var(--navy-input);border-radius:10px;padding:3px}
.seg3 .thumb{position:absolute;top:3px;bottom:3px;left:3px;width:calc(33.333% - 2px);background:var(--navy-card);border-radius:8px;box-shadow:0 1px 3px rgba(0,0,0,.16);transition:transform .28s cubic-bezier(.32,.72,0,1)}
.seg3.p2 .thumb{transform:translateX(100%)}.seg3.p3 .thumb{transform:translateX(200%)}
.seg3 button{position:relative;z-index:1;flex:1;border:none;background:none;color:var(--text-dim);font-family:-apple-system,'Prompt',sans-serif;font-weight:600;font-size:13.5px;padding:10px 4px;cursor:pointer;transition:color .2s;min-height:auto}
.seg3 button.on{color:var(--text)}
/* ===== สรุปห้องว่าง (dashboard) ===== */
.occ-rate{display:flex;justify-content:space-between;align-items:center;margin-top:11px;padding:11px 14px;background:var(--gold-soft);border-radius:11px;font-size:14px;color:var(--text)}
.occ-rate b{font-size:19px;color:var(--gold)}
.occ-list{margin-top:11px;background:var(--navy-input);border-radius:11px;overflow:hidden}
.occ-row{display:flex;align-items:center;gap:10px;padding:11px 13px;position:relative}
.occ-row+.occ-row::before{content:"";position:absolute;top:0;left:13px;right:0;height:.5px;background:var(--border)}
.occ-rn{flex:1;font-weight:600;font-size:15px;color:var(--text)}
.occ-tag{font-size:11.5px;font-weight:700;color:var(--text-dim);background:var(--navy);padding:3px 9px;border-radius:100px}
.occ-more{padding:10px 13px;font-size:13px;color:var(--text-dim)}