/* ══════════════════════════════════════════════════════
   毓秀居管家 – Firebase 雲端版 樣式
   ────────────────────────────────────────────────────── */

:root{
  --ink:#16201a; --ink2:#2c3e30;
  --sage:#3d6b52; --sage2:#5a8f70;
  --gold:#c9963a; --goldl:#e8c278; --goldp:#fdf4e3;
  --cream:#f7f4ee; --paper:#ffffff;
  --border:#ddd6c4; --borderl:#ede8dc;
  --muted:#8a7e6a;
  --danger:#c0392b; --success:#27774a; --warn:#c47a1a; --info:#1a6b9a;
  --sh:0 4px 16px rgba(22,32,26,.10);
  --shl:0 12px 40px rgba(22,32,26,.16);
}

*{ box-sizing:border-box; margin:0; padding:0; }

body{
  font-family:'Noto Sans TC',sans-serif;
  background:var(--cream);
  color:var(--ink);
  min-height:100vh;
}

button{ font-family:inherit; cursor:pointer; border:none; outline:none; }
input,select,textarea{ font-family:inherit; outline:none; }

::-webkit-scrollbar{ width:6px; height:6px; }
::-webkit-scrollbar-thumb{ background:var(--border); border-radius:3px; }

/* ── LOGIN（index.html）── */
.container{ max-width:420px; margin:80px auto; padding:0 20px; }
.card{
  background:#fff; border-radius:16px;
  padding:30px 26px;
  box-shadow:var(--sh);
  border:1px solid var(--borderl);
}
.card h1{
  font-family:'Noto Serif TC',serif;
  font-size:24px; font-weight:900;
  color:var(--ink2); text-align:center;
  letter-spacing:2px;
}
.card h2{ font-size:16px; margin:14px 0 8px; }
.card p{ font-size:13px; color:var(--muted); text-align:center; margin-top:6px; }
.card input{
  width:100%; padding:11px 14px;
  border:2px solid var(--border); border-radius:9px;
  font-size:14px; margin-top:14px;
  transition:border-color .15s;
}
.card input:focus{ border-color:var(--sage); }
.btn-row{ display:flex; gap:8px; margin-top:18px; }
.card button{
  flex:1; padding:11px;
  background:var(--sage); color:#fff;
  border-radius:10px; font-size:14px; font-weight:700;
}
.card button:hover{ background:var(--sage2); }
.card button.secondary{ background:#fff; color:var(--sage); border:2px solid var(--sage); }
.msg{ margin-top:14px; font-size:13px; min-height:18px; white-space:pre-wrap; }

/* ── 第三方登入：分隔線 + OAuth 按鈕 ── */
.login-divider{
  display:flex; align-items:center;
  margin:18px 0 12px;
  font-size:11px; color:var(--muted); letter-spacing:1px;
}
.login-divider::before, .login-divider::after{
  content:""; flex:1; border-top:1px solid var(--borderl);
}
.login-divider span{ padding:0 12px; }

.oauth-btn{
  width:100%; padding:11px 14px; margin-top:8px;
  background:#fff; color:#3c4043;
  border:1.5px solid var(--border); border-radius:10px;
  font-size:14px; font-weight:600;
  display:flex; align-items:center; justify-content:center; gap:10px;
  cursor:pointer;
  transition:background .15s, border-color .15s, transform .1s;
}
.oauth-btn svg{ flex-shrink:0; }
.oauth-btn:active{ transform:scale(.98); }
.oauth-btn.google:hover{ background:#f8f9fa; border-color:#3d6b52; }
.oauth-btn.apple{
  background:#000; color:#fff; border-color:#000;
}
.oauth-btn.apple:hover{ background:#1a1a1a; border-color:#1a1a1a; }
.oauth-btn.line{
  background:#06c755; color:#fff; border-color:#06c755;
}
.oauth-btn.line:hover{ background:#04a043; border-color:#04a043; }

/* ══════════ APP SHELL ══════════ */
.app{ display:flex; min-height:100vh; }

/* ── SIDEBAR ── */
.sidebar{
  width:240px;
  background:var(--ink2); color:#fff;
  display:flex; flex-direction:column;
  position:fixed; top:0; left:0; bottom:0;
  overflow-y:auto; z-index:100;
}
.sb-logo{ padding:22px 20px 14px; border-bottom:1px solid rgba(255,255,255,.08); }
.sb-logo h1{
  font-family:'Noto Serif TC',serif;
  font-size:20px; font-weight:900;
  color:var(--goldl); letter-spacing:2px;
}
.sb-logo h1 span{ color:#fff; opacity:.95; }
.sb-logo p{ font-size:10px; color:rgba(255,255,255,.3); margin-top:3px; letter-spacing:1px; }

.sb-user{
  padding:12px 14px;
  background:rgba(255,255,255,.04);
  border-bottom:1px solid rgba(255,255,255,.06);
  display:flex; align-items:center; gap:10px;
}
.sb-avatar{
  width:34px; height:34px;
  border-radius:10px; background:var(--gold);
  display:flex; align-items:center; justify-content:center;
  font-size:16px; flex-shrink:0;
}
.sb-role{ font-size:10px; color:var(--goldl); letter-spacing:.5px; }
.sb-name{ font-size:13px; font-weight:600; word-break:break-all; }

.sb-section{
  padding:14px 20px 5px;
  font-size:10px; color:rgba(255,255,255,.3);
  letter-spacing:2px; text-transform:uppercase;
}

.nav-item{
  display:flex; align-items:center; gap:10px;
  padding:10px 20px; width:100%;
  background:transparent;
  border:none; border-left:3px solid transparent;
  color:rgba(255,255,255,.75);
  font-size:13px; font-weight:400;
  text-align:left;
  transition:all .15s;
}
.nav-item:hover{ background:rgba(255,255,255,.06); color:#fff; }
.nav-item.active{
  background:rgba(201,150,58,.18);
  border-left-color:var(--gold);
  color:var(--goldl); font-weight:600;
}
.nav-item .ni{ font-size:16px; width:20px; text-align:center; }

.sb-footer{
  padding:14px;
  border-top:1px solid rgba(255,255,255,.08);
  margin-top:auto;
}
.logout-btn{
  width:100%; padding:9px;
  background:rgba(192,57,43,.2);
  border:1px solid rgba(192,57,43,.35);
  color:#e74c3c;
  border-radius:8px; font-size:12px;
  transition:all .15s;
}
.logout-btn:hover{ background:rgba(192,57,43,.35); }

/* ── MAIN ── */
.main{
  margin-left:240px;
  flex:1;
  display:flex; flex-direction:column;
  min-height:100vh;
}

.topbar{
  position:sticky; top:0; z-index:50;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--borderl);
  padding:0 28px;
  height:60px;
  display:flex; align-items:center; justify-content:space-between;
  box-shadow:0 2px 8px rgba(22,32,26,.06);
}
.topbar h2{
  font-family:'Noto Serif TC',serif;
  font-size:18px; font-weight:700;
}
.topbar-sub{ font-size:11px; color:var(--muted); margin-top:1px; }
.topbar-actions{ display:flex; gap:8px; align-items:center; }

.page-body{ padding:24px; }

/* ══════════ COMPONENTS ══════════ */

/* PANEL */
.panel{
  background:#fff; border-radius:14px;
  border:1px solid var(--borderl);
  box-shadow:0 1px 6px rgba(22,32,26,.07);
  margin-bottom:18px;
}
.panel-head{
  padding:16px 22px 12px;
  border-bottom:1px solid var(--borderl);
  display:flex; align-items:center; justify-content:space-between;
  flex-wrap:wrap; gap:8px;
}
.panel-title{
  font-family:'Noto Serif TC',serif;
  font-size:15px; font-weight:700;
}
.panel-sub{ font-size:11px; color:var(--muted); margin-top:2px; }
.panel-body{ padding:18px 22px; }

/* STAT CARDS */
.stats-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(220px, 1fr));
  gap:14px; margin-bottom:18px;
}
.stat-card{
  background:#fff; border-radius:14px;
  border:1px solid var(--borderl);
  padding:18px 20px;
  display:flex; align-items:center; gap:14px;
  box-shadow:0 1px 6px rgba(22,32,26,.07);
}
.stat-icon{
  width:48px; height:48px; border-radius:12px;
  display:flex; align-items:center; justify-content:center;
  font-size:22px; flex-shrink:0;
  background:var(--goldp);
}
.stat-val{
  font-family:'Noto Serif TC',serif;
  font-size:26px; font-weight:900; line-height:1.1;
}
.stat-lbl{ font-size:12px; color:var(--muted); margin-top:2px; }

/* GRID UTIL */
.g2{ display:grid; grid-template-columns:1fr 1fr; gap:14px; }
.g3{ display:grid; grid-template-columns:1fr 1fr 1fr; gap:14px; }
.g4{ display:grid; grid-template-columns:repeat(4,1fr); gap:12px; }
@media (max-width:900px){
  .g2,.g3,.g4{ grid-template-columns:1fr 1fr; }
}
@media (max-width:600px){
  .g2,.g3,.g4{ grid-template-columns:1fr; }
}

/* BUTTONS */
.btn{
  display:inline-flex; align-items:center; gap:6px;
  padding:8px 14px;
  border-radius:9px; font-size:13px; font-weight:600;
  transition:all .15s;
  border:1px solid transparent;
  background:transparent;
}
.btn-primary{ background:var(--sage); color:#fff; }
.btn-primary:hover{ background:var(--sage2); }
.btn-accent{ background:var(--gold); color:#fff; }
.btn-accent:hover{ background:#b58530; }
.btn-success{ background:var(--success); color:#fff; }
.btn-danger{ background:var(--danger); color:#fff; }
.btn-outline{
  background:#fff; color:var(--sage);
  border-color:var(--sage);
}
.btn-outline:hover{ background:var(--sage); color:#fff; }
.btn-ghost{
  background:transparent; color:var(--ink2);
  border-color:var(--borderl);
}
.btn-ghost:hover{ background:var(--cream); }
.btn-sm{ padding:5px 10px; font-size:12px; }
.btn-block{ width:100%; justify-content:center; }

/* FORM */
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:14px; margin-bottom:12px; }
.form-row-3{ display:grid; grid-template-columns:1fr 1fr 1fr; gap:14px; margin-bottom:12px; }
.form-group{ margin-bottom:12px; }
.form-label{
  display:block;
  font-size:12px; font-weight:600;
  color:var(--ink2); margin-bottom:5px;
  letter-spacing:.5px;
}
.form-label .req{ color:var(--danger); }
.form-control{
  width:100%; padding:9px 12px;
  border:1.5px solid var(--border); border-radius:8px;
  font-size:13px;
  background:#fff;
  transition:border-color .15s;
}
.form-control:focus{ border-color:var(--sage); }
.form-hint{ font-size:11px; color:var(--muted); margin-top:4px; }

@media (max-width:700px){
  .form-row, .form-row-3{ grid-template-columns:1fr; }
}

/* TABLE */
.table-wrap{
  overflow-x:auto;
  border:1px solid var(--borderl);
  border-radius:10px;
  -webkit-overflow-scrolling:touch;
}
table.tbl{
  width:100%; border-collapse:collapse;
  font-size:13px;
}
.tbl th, .tbl td{
  padding:10px 14px;
  border-bottom:1px solid var(--borderl);
  text-align:left;
}
.tbl th{
  background:var(--cream);
  font-weight:700; color:var(--ink2);
  font-size:12px; letter-spacing:.5px;
  white-space:nowrap;
}
.tbl tr:last-child td{ border-bottom:none; }
.tbl tr:hover td{ background:#fafaf6; }

/* 序號欄（# 欄）：固定窄寬、灰色、不換行 */
.tbl th.col-seq, .tbl td.col-seq{
  width:42px; min-width:42px;
  color:var(--muted); font-weight:600;
  text-align:center;
  background:var(--cream);
}
.tbl tr:hover td.col-seq{ background:var(--goldp); }

/* 可排序欄頭 */
.tbl th.sortable{
  cursor:pointer; user-select:none;
  position:relative; padding-right:24px;
  transition:background .15s, color .15s;
}
.tbl th.sortable:hover{ background:#f0eadc; color:var(--sage); }
.tbl th.sortable::after{
  content:"⇅";
  position:absolute; right:8px; top:50%;
  transform:translateY(-50%);
  font-size:10px; color:var(--muted);
  opacity:.55;
}
.tbl th.sort-asc, .tbl th.sort-desc{
  background:var(--goldp); color:var(--sage);
}
.tbl th.sort-asc::after{
  content:"▲"; opacity:1; color:var(--sage); font-size:9px;
}
.tbl th.sort-desc::after{
  content:"▼"; opacity:1; color:var(--sage); font-size:9px;
}

/* BADGE */
.badge{
  display:inline-block; padding:3px 9px;
  border-radius:999px;
  font-size:11px; font-weight:700;
  letter-spacing:.3px;
}
.badge-success{ background:#d4ebdf; color:var(--success); }
.badge-warn{ background:#fde9c8; color:var(--warn); }
.badge-danger{ background:#f6d4cf; color:var(--danger); }
.badge-info{ background:#cee0ec; color:var(--info); }
.badge-muted{ background:var(--borderl); color:var(--muted); }

/* MODAL */
.modal-overlay{
  position:fixed; inset:0;
  background:rgba(22,32,26,.55);
  display:none; align-items:center; justify-content:center;
  z-index:200; padding:20px;
}
.modal-overlay.show{ display:flex; }
.modal-box{
  background:#fff; border-radius:14px;
  width:100%; max-width:560px;
  max-height:90vh;
  display:flex; flex-direction:column;
  box-shadow:var(--shl);
}
.modal-box.modal-lg{ max-width:780px; }
.modal-head{
  padding:16px 22px;
  border-bottom:1px solid var(--borderl);
  display:flex; align-items:center; justify-content:space-between;
}
.modal-title{
  font-family:'Noto Serif TC',serif;
  font-size:15px; font-weight:700;
}
.modal-close{
  background:transparent; font-size:18px; color:var(--muted);
  border:none; padding:0 4px;
}
.modal-close:hover{ color:var(--ink); }
.modal-body{ padding:18px 22px; overflow-y:auto; flex:1; }
.modal-foot{
  padding:14px 22px;
  border-top:1px solid var(--borderl);
  display:flex; justify-content:flex-end; gap:8px;
}

/* TOAST */
#toast-root{
  position:fixed; top:80px; right:24px;
  z-index:300;
  display:flex; flex-direction:column; gap:8px;
}
.toast{
  background:var(--ink2); color:#fff;
  padding:10px 16px; border-radius:9px;
  font-size:13px;
  box-shadow:var(--sh);
  min-width:200px;
  animation:toast-in .25s ease-out;
}
.toast.success{ background:var(--success); }
.toast.error{ background:var(--danger); }
.toast.warn{ background:var(--warn); }
@keyframes toast-in{
  from{ transform:translateX(20px); opacity:0; }
  to{ transform:translateX(0); opacity:1; }
}

/* UPLOAD */
.upload-area{
  border:2px dashed var(--border);
  border-radius:10px;
  padding:24px; text-align:center;
  cursor:pointer;
  transition:all .15s;
  background:var(--cream);
}
.upload-area:hover{ border-color:var(--sage); background:#fff; }
.upload-area img{ max-width:100%; max-height:160px; border-radius:8px; }
.upload-icon{ font-size:32px; margin-bottom:6px; }

/* EMPTY STATE */
.empty{
  padding:50px 20px; text-align:center;
  color:var(--muted);
}
.empty-icon{ font-size:42px; margin-bottom:10px; }
.empty-title{ font-size:15px; font-weight:600; color:var(--ink2); margin-bottom:4px; }
.empty-sub{ font-size:12px; }

/* RESPONSIVE: 摺疊側欄 */
@media (max-width:900px){
  .sidebar{
    transform:translateX(-100%);
    transition:transform .2s;
  }
  .sidebar.open{ transform:translateX(0); }
  .main{ margin-left:0; }
  .topbar{ padding-left:60px; }
}

/* DASHBOARD CARD（P2） */
.dash-grid{
  display:grid;
  grid-template-columns:repeat(12, 1fr);
  gap:14px;
}
.dash-card{
  background:#fff; border-radius:14px;
  border:1px solid var(--borderl);
  box-shadow:0 1px 6px rgba(22,32,26,.07);
  display:flex; flex-direction:column;
  overflow:hidden;
}
.dash-card.col-3{ grid-column: span 3; }
.dash-card.col-4{ grid-column: span 4; }
.dash-card.col-6{ grid-column: span 6; }
.dash-card.col-8{ grid-column: span 8; }
.dash-card.col-12{ grid-column: span 12; }
@media (max-width:1100px){
  .dash-card.col-3{ grid-column: span 6; }
  .dash-card.col-4{ grid-column: span 6; }
}
@media (max-width:700px){
  .dash-card.col-3,
  .dash-card.col-4,
  .dash-card.col-6,
  .dash-card.col-8{ grid-column: span 12; }
}
.dash-head{
  padding:12px 16px;
  border-bottom:1px solid var(--borderl);
  display:flex; align-items:center; justify-content:space-between;
  background:linear-gradient(180deg,#fffefb,#fff);
}
.dash-title{
  font-family:'Noto Serif TC',serif;
  font-size:14px; font-weight:700; color:var(--ink2);
  display:flex; align-items:center; gap:6px;
}
.dash-actions{ display:flex; gap:4px; }
.dash-icon-btn{
  width:26px; height:26px; border-radius:7px;
  background:transparent;
  display:inline-flex; align-items:center; justify-content:center;
  font-size:13px; color:var(--muted);
  transition:all .15s;
}
.dash-icon-btn:hover{ background:var(--cream); color:var(--ink); }
.dash-drag{ cursor:grab; }
.dash-card.sortable-ghost{ opacity:.4; background:var(--goldp); }
.dash-card.sortable-chosen{ box-shadow:var(--shl); }
.dash-body{ padding:14px 16px; flex:1; overflow:auto; }
.dash-body.compact{ padding:10px 12px; }

/* big stat */
.dash-bignum{
  font-family:'Noto Serif TC',serif;
  font-size:30px; font-weight:900; line-height:1.1;
}
.dash-substat{ font-size:12px; color:var(--muted); margin-top:3px; }

/* mini list rows */
.dash-row{
  display:flex; align-items:center; justify-content:space-between;
  padding:8px 6px;
  border-bottom:1px dashed var(--borderl);
  font-size:13px;
}
.dash-row:last-child{ border-bottom:none; }
.dash-row .left{ display:flex; flex-direction:column; gap:2px; }
.dash-row .right{ display:flex; gap:6px; align-items:center; }

/* hidden card panel */
.hidden-cards-bar{
  margin-bottom:14px;
  padding:10px 14px;
  background:var(--goldp);
  border:1px dashed var(--goldl);
  border-radius:10px;
  font-size:12px; color:var(--ink2);
  display:flex; flex-wrap:wrap; gap:8px; align-items:center;
}
.hidden-cards-bar .lbl{ font-weight:700; color:var(--gold); }

/* MESSAGES（P3） */
.msg-layout{
  display:grid;
  grid-template-columns: 280px 1fr;
  gap:14px;
  height:calc(100vh - 60px - 48px);
  min-height:520px;
}
@media (max-width:760px){
  .msg-layout{ grid-template-columns:1fr; height:auto; }
  .msg-chat-pane.empty-state{ display:none; }
}
.msg-list-pane, .msg-chat-pane{
  background:#fff; border-radius:14px;
  border:1px solid var(--borderl);
  box-shadow:0 1px 6px rgba(22,32,26,.07);
  display:flex; flex-direction:column;
  overflow:hidden;
}
.msg-list-head, .msg-chat-head{
  padding:12px 16px;
  border-bottom:1px solid var(--borderl);
  background:linear-gradient(180deg,#fffefb,#fff);
  display:flex; align-items:center; justify-content:space-between;
}
.msg-list-title, .msg-chat-title{
  font-family:'Noto Serif TC',serif;
  font-size:14px; font-weight:700; color:var(--ink2);
}
.msg-list-body{ flex:1; overflow-y:auto; }
.msg-thread-item{
  padding:11px 14px; cursor:pointer;
  border-bottom:1px solid var(--borderl);
  display:flex; gap:10px; align-items:center;
  transition:background .15s;
}
.msg-thread-item:hover{ background:var(--cream); }
.msg-thread-item.active{ background:var(--goldp); border-left:3px solid var(--gold); padding-left:11px; }
.msg-thread-avatar{
  width:36px; height:36px; border-radius:50%;
  background:var(--sage2); color:#fff;
  display:flex; align-items:center; justify-content:center;
  font-size:13px; font-weight:700; flex-shrink:0;
}
.msg-thread-info{ flex:1; min-width:0; }
.msg-thread-name{
  font-size:13px; font-weight:600;
  display:flex; justify-content:space-between; gap:6px;
}
.msg-thread-time{ font-size:10px; color:var(--muted); font-weight:400; flex-shrink:0; }
.msg-thread-last{
  font-size:11px; color:var(--muted);
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}
.msg-thread-badge{
  background:var(--danger); color:#fff;
  border-radius:999px;
  font-size:10px; font-weight:700;
  padding:1px 7px; min-width:18px; text-align:center;
  margin-left:6px;
}

.msg-chat-body{
  flex:1; overflow-y:auto;
  padding:18px 18px 8px;
  background:#fbfaf5;
  display:flex; flex-direction:column; gap:8px;
}
.msg-bubble{
  max-width:70%;
  padding:8px 12px; border-radius:14px;
  font-size:13px; line-height:1.6;
  word-wrap:break-word; white-space:pre-wrap;
  position:relative;
}
.msg-bubble.outbound{
  align-self:flex-end;
  background:var(--sage); color:#fff;
  border-bottom-right-radius:4px;
}
.msg-bubble.inbound{
  align-self:flex-start;
  background:#fff; color:var(--ink);
  border:1px solid var(--borderl);
  border-bottom-left-radius:4px;
}
.msg-bubble .meta{
  font-size:10px; opacity:.65;
  margin-top:3px;
}
.msg-day-divider{
  align-self:center;
  font-size:10px; color:var(--muted);
  background:var(--cream);
  padding:3px 12px; border-radius:999px;
  margin:6px 0;
}

.msg-chat-input{
  border-top:1px solid var(--borderl);
  padding:10px 12px;
  display:flex; gap:8px; align-items:center;
  background:#fff;
}
.msg-chat-input textarea{
  flex:1; padding:9px 12px;
  border:1.5px solid var(--border); border-radius:18px;
  font-size:13px; resize:none; font-family:inherit;
  max-height:90px; min-height:38px;
}
.msg-chat-input textarea:focus{ border-color:var(--sage); }

.msg-empty-pane{
  display:flex; align-items:center; justify-content:center;
  flex:1;
  color:var(--muted); font-size:13px;
  text-align:center; padding:20px;
}

/* sidebar nav badge */
.nav-badge{
  background:var(--danger); color:#fff;
  border-radius:999px;
  font-size:10px; font-weight:700;
  padding:0 6px; min-width:16px;
  margin-left:auto;
  text-align:center; line-height:14px;
}

/* ═══════════ ROOM OVERVIEW (樓層分組卡片) ═══════════ */
.floor-section{ margin-bottom:22px; }
.floor-head{
  display:flex; align-items:center; gap:14px;
  margin-bottom:10px;
}
.floor-pill{
  display:inline-flex; align-items:center; justify-content:center;
  background:var(--sage); color:#fff;
  font-weight:800; font-size:13px; letter-spacing:1px;
  padding:5px 16px; border-radius:14px;
  min-width:48px;
}
.floor-line{
  flex:1;
  border-top:1.5px dashed var(--borderl);
}
.floor-count{
  font-size:11px; color:var(--muted);
}
.room-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(180px, 1fr));
  gap:14px;
}
.room-card{
  background:var(--cream);
  border:1px solid var(--borderl);
  border-radius:12px;
  overflow:hidden;
  cursor:pointer;
  transition:transform .15s, box-shadow .15s;
  display:flex; flex-direction:column;
  position:relative;
}
.room-card:hover{
  transform:translateY(-2px);
  box-shadow:0 6px 18px rgba(22,32,26,.10);
}
.room-card-top{
  height:5px;
  background:var(--muted);
}
.room-card[data-status="occupied"]    .room-card-top{ background:var(--sage); }
.room-card[data-status="vacant"]      .room-card-top{ background:var(--gold); }
.room-card[data-status="maintenance"] .room-card-top{ background:var(--danger); }
.room-card-img{
  height:96px;
  background:var(--paper);
  display:flex; align-items:center; justify-content:center;
  font-size:48px;
  border-bottom:1px solid var(--borderl);
  position:relative;
  overflow:hidden;
}
.room-card-img img{
  width:100%; height:100%; object-fit:cover;
}
.room-sqm{
  position:absolute; top:8px; right:8px;
  background:rgba(255,255,255,.92);
  border:1px solid var(--borderl);
  font-size:10px; font-weight:700; color:var(--ink2);
  padding:2px 8px; border-radius:10px;
}
.room-card-body{
  padding:10px 12px 12px;
  display:flex; flex-direction:column; gap:6px;
  flex:1;
}
.room-no{
  font-family:'Noto Serif TC', serif;
  font-size:20px; font-weight:900; color:var(--ink);
  letter-spacing:1px;
}
.room-tenants{
  font-size:12px; color:var(--ink2); line-height:1.6;
  display:flex; flex-direction:column; gap:2px;
}
.room-tenant-line{
  display:flex; align-items:center; gap:5px;
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}
.room-tenant-line::before{ content:"👤"; font-size:11px; }
.room-tenants-empty{
  font-size:11px; color:var(--muted); font-style:italic;
}
.room-rent{
  font-size:13px; font-weight:700; color:var(--success);
  margin-top:auto; padding-top:6px;
  border-top:1px dashed var(--borderl);
}
.room-card[data-status="vacant"]      .room-rent{ color:var(--gold); }
.room-card[data-status="maintenance"] .room-rent{ color:var(--danger); }
.room-elec{
  font-size:10px; color:var(--muted);
}

/* HELPERS */
.row-actions{ display:flex; gap:6px; flex-wrap:wrap; }
.text-muted{ color:var(--muted); }
.text-right{ text-align:right; }
.mt-12{ margin-top:12px; }
.mb-12{ margin-bottom:12px; }
.gap-8{ gap:8px; }
.flex{ display:flex; }
.flex-1{ flex:1; }
.items-center{ align-items:center; }
.justify-between{ justify-content:space-between; }
.hidden{ display:none !important; }

/* ═══════════ RWD：手機 / 平板統一優化 ═══════════ */

/* 漢堡按鈕（mobile only） */
.hamburger{
  display:none;
  position:absolute; left:14px; top:50%;
  transform:translateY(-50%);
  width:36px; height:36px;
  border-radius:8px;
  background:var(--cream); color:var(--ink2);
  border:1px solid var(--borderl);
  font-size:18px; line-height:1;
  align-items:center; justify-content:center;
  cursor:pointer; z-index:60;
}
.hamburger:hover{ background:var(--goldp); }
.sidebar-backdrop{
  display:none;
  position:fixed; inset:0;
  background:rgba(22,32,26,.45);
  z-index:99;
}
.sidebar-backdrop.show{ display:block; }

@media (max-width:900px){
  .hamburger{ display:flex; }
  .topbar{ position:relative; padding-left:60px; }
  .topbar h2{ font-size:16px; }
  .page-body{ padding:14px; }

  /* 表格在 mobile 顯示橫向 scroll 提示 */
  .table-wrap{
    box-shadow:inset -8px 0 8px -8px rgba(22,32,26,.15);
    border-radius:8px;
  }
  .tbl th, .tbl td{ padding:8px 10px; font-size:12px; }
  .tbl th.col-seq, .tbl td.col-seq{ width:34px; min-width:34px; }
  .row-actions{ gap:4px; }
  .row-actions .btn-sm{ padding:4px 8px; font-size:11px; }

  /* Panel padding 收窄 */
  .panel-head{ padding:12px 14px 10px; }
  .panel-body{ padding:14px; }

  /* Stats card 縮一點 */
  .stat-card{ padding:14px 16px; gap:10px; }
  .stat-icon{ width:40px; height:40px; font-size:18px; }
  .stat-val{ font-size:22px; }

  /* Form 欄位高度更友善觸控 */
  .form-control{ padding:11px 12px; font-size:14px; }
  .btn{ padding:10px 14px; font-size:13px; }
  .btn-sm{ padding:7px 10px; font-size:12px; }

  /* Modal full-bleed */
  .modal-overlay{ padding:0; align-items:flex-end; }
  .modal-box{
    max-width:100%;
    max-height:96vh;
    border-radius:14px 14px 0 0;
  }
  .modal-box.modal-lg{ max-width:100%; }
  .modal-head, .modal-foot{ padding:14px 16px; }
  .modal-body{ padding:14px 16px; }
  .modal-foot{ flex-wrap:wrap; }
  .modal-foot .btn{ flex:1 1 auto; min-width:90px; justify-content:center; }
}

@media (max-width:600px){
  /* 房間總覽：卡片網格更密 */
  .room-grid{ grid-template-columns:repeat(auto-fill, minmax(150px, 1fr)); gap:10px; }
  .room-card-img{ height:80px; font-size:36px; }
  .room-no{ font-size:18px; }

  /* Panel 標題稍微再縮 */
  .panel-title{ font-size:14px; }
  .topbar{ padding:0 14px 0 60px; height:54px; }
  .topbar h2{ font-size:15px; }
  .topbar-sub{ font-size:10px; }

  /* Toast 收到右上靠近 */
  #toast-root{ top:64px; right:10px; left:10px; }
  .toast{ min-width:0; font-size:12px; }
}