/* AquaMonitor Web — giao diện "Eco-Tech" theo bộ mockup đã duyệt (docs/design/mockup-web).
   Tông xanh rêu, bo góc lớn, bóng mềm, phông Manrope.

   Khác mockup một cách có chủ ý: mockup dùng chữ phụ #82928c (tương phản ~3,3:1) và cỡ chữ 11–13 px.
   Màn quan trắc phải đọc được cả khi đứng xa và trên máy cũ, nên chữ phụ đậm hơn (≥ 4,5:1) và cỡ
   chữ nền là 14 px. Mọi màu chữ trên nền trong tệp này đều đạt ít nhất 4,5:1. */
:root {
  /* Nền và chữ */
  --bg: #F5F8F3; --text: #1B332C; --muted: #5F7369; --muted2: #556A60;
  --line: #E2EBE4; --line2: #EEF4EF; --field: #D3E1D7; --head: #F3F8F4;
  /* Xanh rêu thương hiệu */
  --forest: #153F38; --deep: #10352F; --green: #17836C; --green-dark: #11644F; --mint: #E5F5EC;
  --accent: #17836C; --link: #13705C; --link-hover: #0E5847;
  /* Menu trái */
  --side: linear-gradient(165deg, #143E36, #0D302C); --side-flat: #123D35;
  --side-hover: #24544A; --side-on: #2C6154; --side-text: #C8DED5; --side-label: #8BB7A7;
  /* Trạng thái */
  --ok-bg: #E2F4E9; --ok: #15744F; --warn-bg: #FFF3E0; --warn: #8A5A12; --warn-line: #F0DCB8;
  --warn2-bg: #FBE7C4; --warn2: #6E4710;
  --danger: #B33D30; --danger-bg: #FFEAE6; --danger-line: #F0BDB5; --danger-dark: #8C2D22;
  --info-bg: #E6F2F8; --info: #1C6782; --neutral-bg: #EDF1EE;
  /* Hình khối */
  --r-card: 20px; --r-ctl: 11px; --r-field: 11px; --r-pill: 100px; --r-sm: 9px;
  --sh-card: 0 8px 30px rgba(23, 70, 50, .05); --sh-soft: 0 5px 20px rgba(35, 71, 44, .04);
  --pad-x: 34px; --pad-y: 14px;
  --sans: Manrope, system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { font-family: var(--sans); color: var(--text); background: var(--bg); font-size: 14px; line-height: 1.5; -webkit-text-size-adjust: 100%; }
a { color: var(--link); }
a:hover { color: var(--link-hover); }
h1, h2, h3 { line-height: 1.25; letter-spacing: -.4px; }
h1 { margin: 0; font-size: 23px; font-weight: 800; }
h2 { margin: 0; font-size: 17px; font-weight: 800; }
h3 { font-weight: 800; }
/* .mono trong markup là số liệu/giờ/phiên bản: mockup dùng Manrope với chữ số đều cột, không phải phông đẳng rộng.
   Khóa thiết bị và ô nhập mã vẫn lấy var(--mono) thẳng trong các quy tắc riêng bên dưới. */
.mono { font-variant-numeric: tabular-nums; letter-spacing: 0; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.note { font-size: 12px; color: var(--muted2); line-height: 1.65; }
.nowrap { white-space: nowrap; }
.right { text-align: right; }
.grow { flex-grow: 1; }
.sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
h1[tabindex="-1"]:focus, main[tabindex="-1"]:focus { outline: none; }
.skip-link { position: absolute; left: 8px; top: -60px; z-index: 50; background: #fff; padding: 10px 14px; border-radius: var(--r-ctl); font-weight: 700; }
.skip-link:focus { top: 8px; }

/* ---------- Khung trang ---------- */
.shell { display: flex; min-height: 100vh; background: var(--bg); }
.sidebar { width: 250px; flex: 0 0 250px; background: var(--side);
  padding: calc(24px + env(safe-area-inset-top, 0px)) 16px calc(24px + env(safe-area-inset-bottom, 0px)) calc(16px + env(safe-area-inset-left, 0px)); display: flex; flex-direction: column; gap: 2px; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.brand { display: flex; align-items: center; gap: 11px; padding: 0 10px; color: #fff; font-weight: 800; font-size: 19px; letter-spacing: -.8px; }
.brandmark { height: 42px; width: 42px; flex-shrink: 0; border-radius: 15px; background: #D3F4DD; color: #156B57; display: grid; place-items: center; font-size: 24px; line-height: 1; }
.brand-sub { padding: 4px 10px 10px; color: #A7C9BB; font-size: 11px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.grp { font-size: 10px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--side-label); margin: 16px 14px 7px; font-weight: 800; }
.nav a, .nav button.navbtn { display: flex; align-items: center; gap: 11px; padding: 11px 14px; border-radius: 12px; color: var(--side-text); text-decoration: none; font-size: 13.5px; font-weight: 600; min-height: 42px; }
.nav button.navbtn { background: none; border: 0; font-family: inherit; width: 100%; text-align: left; cursor: pointer; }
.nav a:hover, .nav button.navbtn:hover { background: var(--side-hover); color: #fff; }
.nav a.active { background: var(--side-on); color: #fff; font-weight: 700; box-shadow: inset 3px 0 #A5EBBF; }
.nav :focus-visible { outline-color: #fff; }
.nav .ico { width: 19px; height: 19px; flex-shrink: 0; opacity: .85; display: block; }
.nav a.active .ico, .nav a:hover .ico, .nav button.navbtn:hover .ico { opacity: 1; }
.nav .txt { flex-grow: 1; min-width: 0; }
.nav .spacer { flex-grow: 1; min-height: 16px; }
.badge { background: #E07A5F; color: #fff; border-radius: var(--r-pill); padding: 1px 8px; font-size: 11px; font-weight: 800; margin-left: auto; }

.main { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; }
/* Lề cộng thêm env(safe-area-inset-*): khi cài làm app (display: standalone + viewport-fit=cover)
   nội dung tràn ra sát mép màn hình, phải tự chừa tai thỏ, mép cong và thanh gạt. */
.topbar { background: #fff; border-bottom: 1px solid var(--line);
  padding: calc(var(--pad-y) + env(safe-area-inset-top, 0px)) calc(var(--pad-x) + env(safe-area-inset-right, 0px)) var(--pad-y) calc(var(--pad-x) + env(safe-area-inset-left, 0px)); display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 5; min-height: 78px; }
.top-left { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; min-width: 0; }
.top-right { display: flex; flex-wrap: wrap; gap: 10px 13px; align-items: center; font-size: 12px; color: var(--muted); }
.crumb { font-size: 11px; color: var(--muted); font-weight: 600; }
.crumb b { color: #2C5F4E; }
.avatar { height: 35px; width: 35px; border-radius: 50%; background: var(--mint); display: grid; place-items: center; color: #246B53; font-weight: 800; font-size: 12px; flex-shrink: 0; }
.station-name { font-size: 13px; font-weight: 700; color: var(--muted); }
.ro { font-size: 12px; color: var(--muted2); }
.btn.menu-btn { display: none; }
.content { padding: 28px calc(var(--pad-x) + env(safe-area-inset-right, 0px)) calc(64px + env(safe-area-inset-bottom, 0px)) calc(var(--pad-x) + env(safe-area-inset-left, 0px)); display: flex; flex-direction: column; gap: 18px; max-width: 1500px; width: 100%; }
.content.row { flex-direction: row; flex-wrap: wrap; align-items: flex-start; }
.page-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

.offline-bar { background: var(--warn-bg); color: var(--warn); border-bottom: 1px solid var(--warn-line);
  padding: calc(11px + env(safe-area-inset-top, 0px)) calc(var(--pad-x) + env(safe-area-inset-right, 0px)) 11px calc(var(--pad-x) + env(safe-area-inset-left, 0px)); font-size: 13px; font-weight: 700; }

/* Dải báo có bản mới: cùng kiểu với dải mất kết nối nhưng tông xanh (tin vui, không phải sự cố). */
.update-bar { background: var(--mint); color: #15604C; border-bottom: 1px solid #CCE7D7;
  padding: 10px calc(var(--pad-x) + env(safe-area-inset-right, 0px)) 10px calc(var(--pad-x) + env(safe-area-inset-left, 0px));
  font-size: 13px; font-weight: 700; display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.update-bar .btn { min-height: 34px; padding: 5px 12px; }

/* ---------- Dải giới thiệu đầu trang ---------- */
.hero { border-radius: 24px; background: linear-gradient(110deg, rgba(18, 79, 66, .97), rgba(34, 133, 103, .92)), radial-gradient(circle at 90% 10%, #B4E5AE, transparent 45%);
  color: #fff; padding: 28px 34px; position: relative; overflow: hidden; display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.hero:before, .hero:after { content: ""; position: absolute; width: 380px; height: 380px; border: 1px solid rgba(255, 255, 255, .14); border-radius: 43% 57% 59% 41%; right: -80px; top: -170px; transform: rotate(25deg); }
.hero:after { right: 60px; top: 70px; width: 240px; height: 240px; }
.hero > .txt { position: relative; z-index: 1; min-width: 0; }
.hero .eyebrow { font-size: 10px; letter-spacing: 2px; font-weight: 800; color: #BCEAD4; text-transform: uppercase; }
.hero h1, .hero h2 { font-size: 26px; letter-spacing: -1px; margin: 9px 0 0; color: #fff; font-weight: 800; }
.hero p { max-width: 580px; color: #DCEFE6; line-height: 1.7; margin: 8px 0 0; font-size: 13px; }
.heroart { font-family: "Apple Symbols", "Segoe UI Symbol", "Noto Sans Symbols 2", var(--sans); font-size: 74px; opacity: .75; margin-right: 40px; z-index: 1; line-height: 1; flex-shrink: 0; }
.hero .chip { background: rgba(255, 255, 255, .16); color: #E7FFF0; }

/* Tiêu đề một khối nội dung */
.sectiontop { display: flex; align-items: center; justify-content: space-between; gap: 15px; flex-wrap: wrap; }
.sectiontop h2 { font-size: 18px; }
.sectiontop p { margin: 4px 0 0; color: var(--muted); font-size: 12px; }

/* ---------- Thẻ, lưới ---------- */
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-card); padding: 22px; min-width: 0; box-shadow: var(--sh-card); }
.card.flush { padding: 0; overflow: hidden; }
.card-head { padding: 20px 22px 10px; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; }
.card-foot { padding: 14px 22px; font-size: 12px; color: var(--muted2); border-top: 1px solid var(--line); }
.head-row { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 14px; }
.cols { display: flex; flex-wrap: wrap; gap: 18px; align-items: flex-start; }
.col-main { flex: 999 1 520px; min-width: 0; }
.col-side { flex: 1 1 330px; min-width: 0; display: flex; flex-direction: column; gap: 18px; }
.col-half { flex: 1 1 420px; min-width: 0; display: flex; flex-direction: column; gap: 18px; }
.kv-grid { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px 12px; font-size: 13px; }
.kv-grid.wide { grid-template-columns: minmax(0, 220px) minmax(0, 1fr); gap: 11px 16px; }
.kv-grid > .k { color: var(--muted); }
.kv-grid > .v { font-weight: 700; min-width: 0; overflow-wrap: anywhere; }
.kv-grid > .v.plain { font-weight: 500; }
.kv { display: flex; flex-direction: column; gap: 4px; font-size: 14px; min-width: 0; }
.kv b { font-size: 10px; font-weight: 800; color: var(--muted); text-transform: uppercase; letter-spacing: .8px; }
.kv-row { display: flex; flex-wrap: wrap; gap: 12px 28px; }
.dev-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 18px 20px; }
.row-list .row { display: flex; justify-content: space-between; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--line2); font-size: 13px; }
.row-list .row:last-child { border-bottom: 0; }
.row-list .row > span:first-child { color: var(--muted); flex-shrink: 0; }

/* ---------- Nút, ô nhập ---------- */
.btn, .nav a, .nav button.navbtn, .tab, .icon-btn, .station-pick { -webkit-tap-highlight-color: transparent; }
.btn { font-family: inherit; font-size: 13px; font-weight: 700; padding: 10px 16px; border-radius: var(--r-ctl); border: 1px solid var(--field); background: #fff; color: #2A5C4B; min-height: 44px; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; gap: 7px; white-space: nowrap; }
.btn:hover { background: var(--mint); border-color: #BFDCC9; }
.btn.primary { background: var(--green); border-color: var(--green); color: #fff; }
.btn.primary:hover { background: var(--green-dark); border-color: var(--green-dark); }
.btn.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn.danger:hover { background: #96301F; border-color: #96301F; }
.btn.danger-outline { color: var(--danger); border-color: var(--danger-line); }
.btn.danger-outline:hover { background: var(--danger-bg); border-color: var(--danger-line); }
.btn.sm { min-height: 38px; padding: 7px 13px; font-size: 12px; }
.btn.chip-btn { min-height: 36px; padding: 5px 13px; font-size: 12px; border-radius: var(--r-pill); }
.btn.chip-btn[aria-pressed="true"] { background: var(--green); border-color: var(--green); color: #fff; }
.btn.block { width: 100%; min-height: 50px; font-size: 14px; }
.btn.link { border: 0; background: none; color: var(--link); padding: 0 2px; min-height: 40px; font-weight: 800; }
.btn.link:hover { text-decoration: underline; background: none; }
.btn:disabled, .btn[aria-disabled="true"] { opacity: .45; cursor: not-allowed; }
.spin { width: 14px; height: 14px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; display: inline-block; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.input, select.input, .content select, .content input:not([type=checkbox]):not([type=radio]) {
  font-family: inherit; font-size: 13px; padding: 11px 13px; border: 1px solid var(--field); border-radius: var(--r-field); min-height: 44px; background: #FCFEFD; color: var(--text); max-width: 100%; }
.input:focus, .content select:focus, .content input:focus:not([type=checkbox]):not([type=radio]) { outline: 0; border-color: #3BA882; box-shadow: 0 0 0 3px rgba(45, 165, 119, .14); }
.input.invalid, .input[aria-invalid="true"] { border-color: var(--danger); box-shadow: 0 0 0 1px var(--danger); }
.input.mono { font-family: var(--mono); }
.input.dt { width: 178px; }
.input.w-search { width: 272px; }
.field { display: flex; flex-direction: column; gap: 7px; font-size: 12px; font-weight: 700; color: #4F6A5E; min-width: 0; }
.field > .input, .field > select { font-weight: 500; }
.field-inline { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.req { color: var(--danger); }
.ck { display: flex; align-items: center; gap: 9px; font-size: 13px; color: var(--text); min-height: 36px; font-weight: 500; cursor: pointer; }
.ck input { width: 18px; height: 18px; margin: 0; accent-color: var(--green); }
/* Ô tích có nhãn nhiều dòng: ô vuông canh theo dòng đầu, không canh giữa khối chữ. */
.ck.top { align-items: flex-start; }
.ck.top input { margin-top: 3px; }
fieldset.plain { border: none; padding: 0; margin: 0; min-width: 0; }
fieldset.plain legend { font-size: 12px; font-weight: 700; color: #4F6A5E; margin-bottom: 6px; padding: 0; }
.ck-row { display: flex; flex-wrap: wrap; gap: 4px 16px; }
.field-error { font-size: 12px; color: var(--danger); font-weight: 600; }
.field-warn { font-size: 12px; color: var(--warn); font-weight: 600; }
.filters { display: flex; flex-wrap: wrap; gap: 14px; align-items: flex-end; }
.filters .grow { flex-grow: 1; }
.pw-wrap { display: flex; gap: 8px; }
.pw-wrap .input { flex-grow: 1; min-width: 0; }
.icon-btn { font: inherit; width: 44px; min-height: 44px; border: 1px solid var(--field); border-radius: var(--r-field); background: #fff; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; color: #4F6A5E; }
.icon-btn:hover { background: var(--mint); }
.code-input { font-family: var(--mono); font-size: 26px; letter-spacing: .2em; text-align: center; width: 100%; min-height: 56px; }
.code-input.backup { font-size: 20px; letter-spacing: .08em; min-height: 52px; }
.code-input.small { font-size: 18px; letter-spacing: .15em; width: 170px; min-height: 44px; }

/* ---------- Hộp thông báo ---------- */
.box { border-radius: 14px; padding: 13px 17px; font-size: 13px; line-height: 1.6; }
.box.error { background: var(--danger-bg); border: 1px solid var(--danger-line); color: var(--danger-dark); }
.box.warn { background: #FFF9ED; border: 1px solid var(--warn-line); color: var(--warn); }
.box.info { background: #F0F8F3; border: 1px solid #D9EBDF; color: #3D6B57; }
.box.ok { background: var(--ok-bg); border: 1px solid #CDE8D7; color: var(--ok); }
.error-summary ul { margin: 6px 0 0; padding-left: 18px; }
.error-summary button { font: inherit; background: none; border: 0; color: var(--danger-dark); text-decoration: underline; cursor: pointer; padding: 2px 0; text-align: left; }
.alarm-strip { background: var(--danger); color: #fff; border-radius: 16px; padding: 16px 20px; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; }
.alarm-strip .t { font-weight: 800; font-size: 15px; }
.alarm-strip .s { font-size: 13px; }
.alarm-strip .r { font-size: 12px; }

/* ---------- Nhãn trạng thái (luôn có chữ) ---------- */
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 6px 11px; border-radius: var(--r-pill); font-size: 11px; font-weight: 800; white-space: nowrap; line-height: 1.3; }
.chip.ok { background: var(--ok-bg); color: var(--ok); }
.chip.warn { background: var(--warn-bg); color: var(--warn); }
.chip.warn-strong { background: var(--warn2-bg); color: var(--warn2); }
.chip.danger { background: var(--danger-bg); color: var(--danger); }
.chip.danger-solid { background: var(--danger); color: #fff; }
.chip.info { background: var(--info-bg); color: var(--info); }
.chip.neutral { background: var(--neutral-bg); color: var(--muted2); }
.chip.dark { background: var(--forest); color: #fff; }
.chip .dot { font-size: 9px; }

/* ---------- Bảng ---------- */
.tbl-wrap { position: relative; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.card.flush .tbl-wrap { border-radius: 0; }
table.tbl { border-collapse: collapse; width: 100%; }
.tbl th { text-align: left; font-size: 11px; color: #5B7568; font-weight: 800; letter-spacing: .3px; padding: 14px 14px; background: var(--head); border-bottom: 1px solid var(--line); white-space: nowrap; }
.tbl tbody th { background: none; color: var(--text); font-size: 13px; font-weight: 700; padding: 13px 14px; border-bottom: 1px solid var(--line2); text-align: left; }
.tbl td { padding: 13px 14px; border-bottom: 1px solid var(--line2); font-size: 13px; vertical-align: middle; }
.tbl tbody tr:hover td, .tbl tbody tr:hover th { background: #F9FCFA; }
.tbl tbody tr:last-child td, .tbl tbody tr:last-child th { border-bottom: 0; }
.tbl .num { text-align: right; font-variant-numeric: tabular-nums; font-weight: 700; }
.tbl th.num { font-weight: 800; }
.tbl td.over { background: var(--danger-bg); color: var(--danger); font-weight: 800; }
.tbl .sub { font-size: 11px; color: var(--muted2); }
.tbl .actions { text-align: right; white-space: nowrap; }
.tbl .actions .btn + .btn { margin-left: 6px; }
.tbl tr.gap-row td { background: var(--head); color: var(--muted); font-style: italic; }
.empty { padding: 38px 20px; text-align: center; color: var(--muted2); font-size: 13px; }
.pager { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; padding: 14px 18px; border-top: 1px solid var(--line); }
.pager .info { font-size: 12px; color: var(--muted); }
.pager .pages { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.pager .btn { min-width: 44px; min-height: 38px; padding: 7px 12px; }
.pager .btn[aria-current="page"] { background: var(--green); border-color: var(--green); color: #fff; }

/* ---------- Thẻ chọn (tab) ---------- */
.tabs { display: flex; flex-wrap: wrap; gap: 8px; border-bottom: 1px solid var(--line); }
.tab { font-family: inherit; font-size: 13px; font-weight: 700; border: none; background: none; color: #5B7568; padding: 12px 18px; min-height: 44px; cursor: pointer; border-radius: 12px 12px 0 0; }
.tab[aria-selected="true"] { background: #E0F1E8; color: #0B6E56; box-shadow: inset 0 -3px 0 #218568; }
.tab:hover { color: var(--text); }

/* ---------- Ô thông số (W-03) ---------- */
.vcards { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 15px; }
.vcard { background: #fff; border: 1px solid var(--line); border-radius: var(--r-card); padding: 20px; min-width: 0; box-shadow: var(--sh-card); position: relative; overflow: hidden; }
.vcard:before { content: ""; position: absolute; width: 112px; height: 112px; border-radius: 50%; background: #E9F7ED; right: -42px; top: -45px; }
.vcard .top { display: flex; justify-content: space-between; align-items: center; gap: 8px; position: relative; }
.vcard .name { font-weight: 800; font-size: 13px; }
.vcard .val { font-size: 32px; font-weight: 800; letter-spacing: -1.4px; margin-top: 10px; line-height: 1.15; font-variant-numeric: tabular-nums; position: relative; }
.vcard .unit { font-size: 13px; font-weight: 700; letter-spacing: 0; margin-left: 5px; color: var(--muted); }
.vcard .thr { font-size: 11px; color: var(--muted); position: relative; line-height: 1.7; }
.vcard.near { background: #FFF9ED; border-color: var(--warn-line); }
.vcard.near:before { background: #FDEFD7; }
.vcard.near .val { color: var(--warn); }
.vcard.near .thr { color: var(--warn2); }
.vcard.over { background: var(--danger-bg); border: 2px solid var(--danger); padding: 19px; }
.vcard.over:before { background: #FBDAD3; }
.vcard.over .val { color: var(--danger); }
.vcard.over .thr { color: var(--danger-dark); }
.vcard.acked { background: var(--danger-bg); border-color: var(--danger-line); }
.vcard.acked:before { background: #FBDAD3; }
.vcard.acked .val { color: var(--danger); }
.vcard.stale .val { color: var(--muted2); }

/* ---------- Thẻ trạm (W-02 Danh sách trạm) ---------- */
.scards { display: grid; grid-template-columns: repeat(auto-fit, minmax(310px, 1fr)); gap: 17px; }
.scard { background: #fff; border: 1px solid var(--line); border-radius: var(--r-card); padding: 21px; min-width: 0; display: flex; flex-direction: column; gap: 10px; box-shadow: var(--sh-soft); transition: transform .2s, box-shadow .2s; }
.scard:hover { transform: translateY(-3px); box-shadow: 0 15px 30px rgba(35, 71, 44, .09); }
.scard.cur { border: 1.5px solid #62AD92; }
.scard.off { background: #FAFCFA; }
.scard > .top { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; flex-wrap: wrap; }
.scard .kv b { font-size: 10px; letter-spacing: 1px; color: #7E9589; text-transform: none; }
.scard .nm { font-size: 16px; font-weight: 800; letter-spacing: -.3px; overflow-wrap: anywhere; }
.scard .loc { font-size: 11.5px; color: var(--muted); line-height: 1.7; overflow-wrap: anywhere; }
.scard .chips { display: flex; flex-wrap: wrap; gap: 6px; }
.scard .chips:empty { display: none; }
.scard .vals { display: grid; grid-template-columns: repeat(auto-fit, minmax(62px, 1fr)); gap: 10px 8px; }
.scard .vals .one { display: flex; flex-direction: column; min-width: 0; }
.scard .vals .k { font-size: 10px; color: var(--muted); margin-bottom: 3px; }
.scard .vals .v { font-size: 16px; font-weight: 800; color: #254C3C; font-variant-numeric: tabular-nums; }
.scard .sub { font-size: 11px; color: var(--muted2); }
.scard .acts { display: flex; flex-wrap: wrap; gap: 9px; margin-top: auto; padding-top: 4px; }
.scard .acts .btn { min-height: 40px; padding: 9px 14px; }

/* Ô chọn trạm trên thanh trên cùng */
.station-pick { font-family: inherit; font-size: 12px; font-weight: 700; max-width: 240px; min-height: 40px; padding: 9px 12px;
  border: 1px solid var(--field); border-radius: 10px; background: #fff; color: #355B4D; cursor: pointer; }

.alarm-list { display: flex; flex-direction: column; gap: 0; }
.alarm-item { display: flex; gap: 13px; align-items: flex-start; padding: 14px 0; border-bottom: 1px solid var(--line2); }
.alarm-item:last-child { border-bottom: 0; padding-bottom: 0; }
.alarm-item:first-child { padding-top: 0; }
.alarm-item .t { font-weight: 800; font-size: 13px; }
.alarm-item .s { font-size: 11.5px; color: var(--muted); line-height: 1.6; }

/* ---------- Biểu đồ ---------- */
.chart { position: relative; user-select: none; -webkit-user-select: none; }
.chart svg { width: 100%; height: auto; display: block; overflow: visible; }
.chart .hit { cursor: crosshair; touch-action: pan-y; }
.chart-tip { position: absolute; top: 8px; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; font-size: 12px; box-shadow: 0 6px 20px rgba(18, 60, 44, .16); pointer-events: none; min-width: 150px; z-index: 2; }
.chart-tip .tt { font-weight: 800; margin-bottom: 5px; font-variant-numeric: tabular-nums; }
.chart-tip .tr { display: flex; align-items: center; gap: 6px; white-space: nowrap; }
.chart-tip .tr .v { font-variant-numeric: tabular-nums; font-weight: 700; margin-left: auto; padding-left: 10px; }
.legend { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 12px; font-size: 11.5px; color: var(--muted); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.swatch { width: 15px; height: 3px; border-radius: 3px; display: inline-block; }
.swatch.dash { background-image: linear-gradient(90deg, currentColor 60%, transparent 60%); background-size: 6px 3px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 15px; }
.stat { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 19px 21px; box-shadow: var(--sh-card); display: flex; align-items: center; gap: 14px; }
.stat .symbol { width: 47px; height: 47px; flex-shrink: 0; border-radius: 15px; background: #E8F5ED; display: grid; place-items: center; font-size: 22px; line-height: 1; }
.stat.warn .symbol { background: #FFF0E6; }
.stat.off .symbol { background: #EEF1EF; }
.stat > div { min-width: 0; }
.stat .l { font-size: 12px; color: var(--muted); font-weight: 600; }
.stat .v { font-size: 25px; font-weight: 800; letter-spacing: -1px; margin-top: 3px; font-variant-numeric: tabular-nums; }
.stat .n { font-size: 11px; color: var(--muted2); margin-top: 2px; }

/* ---------- Modal ---------- */
.modal-back { position: fixed; inset: 0; background: rgba(14, 48, 39, .6); display: flex; align-items: center; justify-content: center; padding: 16px; z-index: 40; }
.modal { background: #fff; border-radius: 22px; width: 100%; max-width: 520px; padding: 26px; max-height: 92vh; overflow-y: auto; box-shadow: 0 30px 90px rgba(10, 40, 32, .3); }
.modal h2 { margin: 0 0 9px; font-size: 20px; }
.modal .body { margin: 0 0 16px; font-size: 13px; color: var(--muted); line-height: 1.7; }
.modal-actions { display: flex; justify-content: flex-end; gap: 9px; flex-wrap: wrap; margin-top: 20px; }
.modal .code { font-size: 11px; color: var(--muted2); font-family: var(--mono); }
.secret { display: flex; flex-direction: column; gap: 12px; background: #F6FAF7; border: 1px solid #E7EEE8; border-radius: 14px; padding: 16px; }
.secret .item { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; }
.secret .item > div { flex: 1 1 260px; min-width: 0; }
.secret .lbl { font-size: 11px; color: var(--muted); font-weight: 700; }
.secret .val { font-family: var(--mono); font-size: 16px; font-weight: 600; word-break: break-all; }
.codes { font-family: var(--mono); display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px 16px; font-size: 14px; background: #F6FAF7; border-radius: 12px; padding: 14px 16px; }
body.modal-open { overflow: hidden; }

/* ---------- Thông báo ngắn ---------- */
.toasts { position: fixed; right: calc(22px + env(safe-area-inset-right, 0px)); bottom: calc(22px + env(safe-area-inset-bottom, 0px)); z-index: 60; display: flex; flex-direction: column; gap: 9px; max-width: min(380px, calc(100vw - 32px)); }
.toast { border-radius: 13px; padding: 14px 17px; font-size: 13px; font-weight: 700; color: #fff; display: flex; align-items: flex-start; gap: 10px; box-shadow: 0 10px 30px rgba(10, 40, 32, .25); }
.toast .x { margin-left: auto; background: none; border: 0; color: inherit; font-size: 20px; line-height: 1; cursor: pointer; min-width: 32px; min-height: 32px; }
.toast.success { background: #177D65; }
.toast.error { background: var(--danger); }
.toast.info { background: var(--forest); }
.toast.warning { background: #FFF3E0; color: var(--warn); border: 1px solid var(--warn-line); }
.toast.alarm { background: var(--danger); }
.toast a { color: #fff; }
.toast .open { color: inherit; text-decoration: underline; background: none; border: 0; font: inherit; font-weight: 800; cursor: pointer; padding: 0; text-align: left; }

/* ---------- Đăng nhập ---------- */
/* Hai khoang: khoang thương hiệu xanh rêu bên trái, thẻ đăng nhập bên phải (mockup 00). */
.login, .login-main { --lg-ink: #1B332C; --lg-muted: #5F7369; --lg-line: #D6E5DC; }
.login { min-height: 100vh; min-height: 100dvh; color: var(--lg-ink); background: #F5FAF7; display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(380px, .92fr); }
.login-side { position: relative; min-height: 100%; overflow: hidden; color: #fff; padding: 44px 48px; display: flex; flex-direction: column;
  background: linear-gradient(150deg, #0F3A33, #16624F 60%, #1C7A5F); }
.login-side:before, .login-side:after { content: ""; position: absolute; border-radius: 50%; background: rgba(255, 255, 255, .05); }
.login-side:before { width: 500px; height: 500px; right: -230px; top: -180px; }
.login-side:after { width: 350px; height: 350px; left: -230px; top: 40%; }
.login-side .mark { display: flex; align-items: center; gap: 12px; position: relative; z-index: 1; }
.login-side .mark .logo { height: 43px; width: 43px; display: grid; place-items: center; border-radius: 14px; background: rgba(255, 255, 255, .15); border: 1px solid rgba(255, 255, 255, .34); font-size: 23px; }
.login-side .mark strong { font-size: 19px; font-weight: 800; letter-spacing: -.6px; display: block; }
.login-side .mark small { font-size: 9.5px; letter-spacing: 2.4px; color: #A8D8C3; }
.login-side .pitch { margin: auto 0; position: relative; z-index: 1; }
.login-side .eyebrow { font-size: 11px; letter-spacing: 1.6px; font-weight: 800; color: #9EDCBE; text-transform: uppercase; }
.login-side h2 { font-size: clamp(27px, 3.2vw, 38px); letter-spacing: -1.4px; margin: 14px 0 0; line-height: 1.22; color: #fff; }
.login-side p { max-width: 460px; color: #CFEADF; line-height: 1.75; margin: 14px 0 0; font-size: 14px; }
.login-side .cap { position: relative; z-index: 1; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 11px; color: #AFD6C7; }
.login-main { display: flex; align-items: center; justify-content: center; padding: 50px 32px;
  background: radial-gradient(circle at 90% 5%, #D9F2E6, transparent 40%), #F5FAF7; }
.login-card { width: min(100%, 470px); background: #fff; border: 1px solid #E3EFE8; border-radius: 28px; padding: clamp(28px, 4vw, 42px); box-shadow: 0 28px 65px rgba(30, 98, 69, .1); }
.login-card.wide { max-width: 570px; }
.login-card .card-icon { display: grid; place-items: center; width: 56px; height: 56px; border-radius: 18px; background: #E7F7ED; color: #188362; margin-bottom: 22px; font-size: 25px; }
.login-card .brand { display: block; padding: 0; font-size: clamp(23px, 2.4vw, 29px); font-weight: 800; letter-spacing: -1px; color: var(--forest); line-height: 1.15; }
.login-card .brand span { color: var(--green); }
.login-card .brand-tag { font-size: 9.5px; letter-spacing: 2.6px; color: #7E9B8E; margin: 7px 0 30px; padding: 0; white-space: normal; }
.login-card h1 { margin: 0 0 9px; font-size: 27px; letter-spacing: -1px; color: var(--lg-ink); }
.login-card .lead { margin: 0 0 26px; color: #70897E; font-size: 13.5px; line-height: 1.7; }
.login-card .field { margin-bottom: 2px; gap: 9px; font-size: 13px; font-weight: 800; color: var(--lg-ink); }
.login-card .field + .field { margin-top: 18px; }
.login-card .input { width: 100%; font-size: 14px; padding: 15px 16px; min-height: 52px; border: 1px solid var(--lg-line); border-radius: 12px; background: #FCFEFD; color: var(--lg-ink); }
.login-card .input:focus { outline: 0; border-color: #3FA77B; box-shadow: 0 0 0 4px rgba(45, 165, 119, .13); }
.login-card .input.invalid, .login-card .input[aria-invalid="true"] { border-color: var(--danger); box-shadow: 0 0 0 1px var(--danger); }
.login-card .pw-wrap { gap: 0; align-items: center; border: 1px solid var(--lg-line); border-radius: 12px; background: #FCFEFD; }
.login-card .pw-wrap:focus-within { border-color: #3FA77B; box-shadow: 0 0 0 4px rgba(45, 165, 119, .13); }
.login-card .pw-wrap:has(.input[aria-invalid="true"]) { border-color: var(--danger); box-shadow: 0 0 0 1px var(--danger); }
.login-card .pw-wrap .input, .login-card .pw-wrap .input:focus { border: 0; background: transparent; box-shadow: none; }
.login-card .pw-wrap .icon-btn { border: 0; background: transparent; min-height: 52px; }
.login-card .ck { margin: 16px 0 24px; font-size: 13px; }
.login-card .ck input { width: 17px; height: 17px; accent-color: var(--green); }
.login-card .btn.primary.block { border: 0; border-radius: 13px; padding: 16px; min-height: 54px; font-size: 15px; font-weight: 800; background: linear-gradient(100deg, #148664, #21A17B); box-shadow: 0 10px 22px rgba(27, 145, 108, .2); }
.login-card .btn.primary.block:hover:not(:disabled) { background: linear-gradient(100deg, #148664, #21A17B); filter: brightness(1.06); }
.login-card .note { color: #6D8578; text-align: center; }
.login-card .login-foot { margin-top: 24px; font-size: 11px; text-align: center; color: #90A49A; border-top: 1px solid #E7F0EA; padding-top: 20px; }
.login-links { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.qr-box { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-start; }
.qr { border: 1px solid var(--line); border-radius: 10px; padding: 6px; background: #fff; flex-shrink: 0; display: block; }
.countdown { font-size: 12px; color: var(--muted2); margin-top: 10px; }

/* ---------- Vai trò dạng thẻ chọn ---------- */
.role-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(165px, 1fr)); gap: 9px; }
.role-card { font: inherit; text-align: left; display: flex; flex-direction: column; align-items: flex-start; min-height: 66px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; background: #fff; color: var(--text); cursor: pointer; }
.role-card:hover { border-color: #A6D7BF; }
.role-card .rl { font-weight: 800; font-size: 13px; }
.role-card .rd { font-size: 11px; margin-top: 3px; color: var(--muted); }
.role-card[aria-checked="true"] { background: #E9F7F0; border: 2px solid #20896D; padding: 11px 13px; }
.grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }

/* ---------- Báo cáo (W-07), khổ A4 khi in ---------- */
.report-stage { flex: 999 1 600px; min-width: 0; background: #E4EFE7; border-radius: var(--r-card); padding: 22px; }
.paper { background: #fff; max-width: 790px; margin: 0 auto; padding: 46px 50px; box-shadow: 0 12px 30px rgba(35, 69, 43, .09); color: #273A32; }
.paper .ph { display: flex; justify-content: space-between; gap: 12px; font-size: 11px; color: var(--muted); border-bottom: 2px solid #D9EBE0; padding-bottom: 14px; }
.paper .title { text-align: center; margin: 26px 0 7px; font-size: 19px; font-weight: 800; letter-spacing: -.3px; }
.paper .sub { text-align: center; font-size: 12px; color: var(--muted); }
.paper .sec { font-size: 13px; font-weight: 800; margin: 22px 0 10px; border-left: 4px solid #4CA989; padding-left: 10px; }
.paper .fine { font-size: 10.5px; color: var(--muted); margin-top: 7px; }
.paper table.pt { border-collapse: collapse; width: 100%; }
.pt th { font-size: 11px; text-align: left; padding: 8px 9px; border: 1px solid #DCE8DF; background: #EEF7F1; font-weight: 800; }
.pt td { font-size: 11px; padding: 8px 9px; border: 1px solid #DCE8DF; }
.pt td.n { font-variant-numeric: tabular-nums; text-align: right; }
.paper .sign { display: flex; justify-content: space-around; margin-top: 40px; font-size: 12px; text-align: center; }
.paper .sign .hint { color: var(--muted2); font-size: 11px; margin-top: 50px; }
.mini-charts { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; }
.mini-charts .mc { border: 1px solid #E0EAE3; border-radius: 10px; padding: 9px 10px 3px; }
.mini-charts .mc .h { font-size: 11px; font-weight: 800; }

.loading { padding: 44px; text-align: center; color: var(--muted2); }
.forbidden { max-width: 580px; }

/* ---------- Điện thoại, máy tính bảng: menu thu thành nút dưới 900 px ---------- */
@media (max-width: 899px) {
  .sidebar { position: fixed; left: 0; top: 0; bottom: 0; z-index: 45; transform: translateX(-100%); transition: transform .2s ease; visibility: hidden; }
  .shell.menu-open .sidebar { transform: none; visibility: visible; box-shadow: 4px 0 18px rgba(0, 0, 0, .3); }
  .shell.menu-open .scrim { position: fixed; inset: 0; background: rgba(14, 48, 39, .5); z-index: 44; }
  .btn.menu-btn { display: inline-flex; }
  :root { --pad-x: 16px; --pad-y: 12px; }
  .topbar { position: static; min-height: 0; }
  .content { padding-top: 16px; padding-bottom: calc(32px + env(safe-area-inset-bottom, 0px)); gap: 15px; }
  .toasts { left: calc(16px + env(safe-area-inset-left, 0px)); right: calc(16px + env(safe-area-inset-right, 0px)); bottom: calc(16px + env(safe-area-inset-bottom, 0px)); max-width: none; }
  .card { padding: 17px; border-radius: 17px; }
  .card-head { padding: 16px 17px 8px; }
  .card.flush .empty { padding: 22px 16px; }
  .hero { padding: 24px; border-radius: 20px; }
  .hero h1, .hero h2 { font-size: 21px; }
  .heroart { display: none; }
  .vcard .val { font-size: 27px; }
  .kv-grid.wide { grid-template-columns: minmax(0, 1fr); gap: 2px 0; }
  .kv-grid.wide > .v { margin-bottom: 8px; }
  .report-stage { padding: 8px; }
  .paper { padding: 24px 16px; }
  .login { grid-template-columns: minmax(0, 1fr); }
  .login-side { min-height: 0; padding: 24px 20px 26px; }
  .login-side .pitch { margin: 22px 0 18px; }
  .login-side h2 { font-size: 24px; }
  .login-side p { font-size: 13px; }
  .login-side:before, .login-side:after { display: none; }
  .login-main { padding: 24px 16px 40px; }
  .login-card { width: min(100%, 520px); padding: 28px 22px; border-radius: 22px; }
  /* iOS tự phóng to trang khi con trỏ vào ô nhập có cỡ chữ dưới 16px. Đặt đúng 16px để không bị phóng. */
  .input, select.input, .content select, .content input:not([type=checkbox]):not([type=radio]),
  .login-card .input, .filters select { font-size: 16px; }
  .input.dt { width: 100%; }
  .filters > .field { flex: 1 1 140px; }
  .filters > .field .input, .filters > .field select { width: 100%; }
  .grid2 { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 480px) {
  h1 { font-size: 19px; }
  .top-right { width: 100%; justify-content: space-between; gap: 6px 10px; font-size: 12px; }
  .top-right .user { display: none; }
  .codes { grid-template-columns: minmax(0, 1fr); }
  .stats, .vcards { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .vcard { padding: 14px; }
  .vcard.over { padding: 13px; }
  .vcard .val { font-size: 23px; }
  .stat { padding: 13px; gap: 10px; }
  .stat .symbol { width: 40px; height: 40px; font-size: 19px; border-radius: 12px; }
  .stat .v { font-size: 21px; }
  .scards { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- Khi đã cài về màn hình chính (PWA) ---------- */
/* Kéo xuống để tải lại của trình duyệt sẽ nạp lại toàn bộ ứng dụng WASM — trong một app thì đó là
   thao tác nhầm, không phải tính năng. Chỉ tắt ở chế độ app, trên tab trình duyệt vẫn giữ như thường. */
@media (display-mode: standalone), (display-mode: fullscreen), (display-mode: minimal-ui) {
  html, body { overscroll-behavior-y: contain; }
  /* Chữ trong khung app không cho bôi đen nhầm khi chạm giữ; nội dung dữ liệu vẫn chọn chép được. */
  .sidebar, .topbar { -webkit-user-select: none; user-select: none; }
}

/* ---------- In (báo cáo A4) ---------- */
@page { size: A4; margin: 14mm 12mm; }
@media print {
  body { background: #fff; font-size: 12px; }
  .sidebar, .topbar, .no-print, .toasts, .offline-bar, .modal-back, .skip-link, .scrim, .hero { display: none !important; }
  .shell, .main, .content { display: block; padding: 0; margin: 0; max-width: none; }
  .report-stage { background: none; padding: 0; border-radius: 0; }
  .paper { box-shadow: none; max-width: none; padding: 0; margin: 0; }
  .pt th, .pt td { font-size: 10.5pt; }
  .paper table, .paper .mini-charts { page-break-inside: auto; }
  .paper tr, .mini-charts .mc { page-break-inside: avoid; }
  a { color: inherit; text-decoration: none; }
}
.login-card form > .box, .login-card form > .error-summary { margin-bottom: 16px; }
.filters .field-error, .filters .field-warn { width: 0; min-width: 100%; }

/* ---- Trợ lý hỏi đáp (W trợ lý) ---------------------------------------- */
.chat { display: flex; flex-direction: column; gap: 14px; padding: 0; }
.chat-log { display: flex; flex-direction: column; gap: 12px; padding: 20px 22px; max-height: 62vh; overflow-y: auto; }
.chat-empty { color: var(--muted2); font-size: 13px; text-align: center; padding: 26px 0; }
.bubble { max-width: min(78%, 680px); border-radius: 14px; padding: 11px 14px; font-size: 14px; line-height: 1.6; white-space: pre-wrap; overflow-wrap: anywhere; }
.bubble.me { align-self: flex-end; background: var(--brand, #1f6f4a); color: #fff; border-bottom-right-radius: 4px; }
.bubble.bot { align-self: flex-start; background: #F2F7F4; border: 1px solid var(--line); border-bottom-left-radius: 4px; }
.bubble.sys { align-self: center; background: #FFF8E6; border: 1px solid #E8D9A8; font-size: 13px; }
.bubble .when { display: block; margin-top: 6px; font-size: 11px; opacity: .65; }
.bubble-extra { align-self: flex-start; max-width: min(92%, 760px); display: flex; flex-direction: column; gap: 8px; }
.chat-imgs { display: flex; flex-wrap: wrap; gap: 8px; }
.chat-imgs figure { margin: 0; width: 150px; }
.chat-imgs img { width: 150px; height: 112px; object-fit: cover; border-radius: 8px; border: 1px solid var(--line); background: #EEF4EF; }
.chat-imgs figcaption { font-size: 11px; color: var(--muted2); margin-top: 3px; line-height: 1.4; }
.chat-form { display: flex; gap: 10px; padding: 14px 22px; border-top: 1px solid var(--line); }
.chat-form input { flex: 1; min-width: 0; }
.chat-hint { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 22px 16px; }
.chat-hint button { font-size: 12px; padding: 5px 10px; border-radius: 999px; border: 1px solid var(--line); background: #fff; color: var(--muted); cursor: pointer; }
.chat-hint button:hover { border-color: var(--brand, #1f6f4a); color: var(--brand, #1f6f4a); }
@media (max-width: 720px) { .bubble { max-width: 92%; } .chat-log { padding: 14px; } .chat-form, .chat-hint { padding-inline: 14px; } }
.chat-chart { width: 100%; height: auto; border: 1px solid var(--line); border-radius: 10px; }
.chat-legend { display: flex; flex-wrap: wrap; gap: 12px; font-size: 11px; color: var(--muted2); }
.chat-legend i { display: inline-block; width: 12px; height: 3px; border-radius: 2px; margin-right: 5px; vertical-align: 2px; }
.chat-legend i.dash { width: 14px; height: 0; border-top: 2px dashed #D08A2C; background: none !important; }