:root{--bg:#f4f7fb;--card:#fff;--text:#15213d;--muted:#71809a;--line:#e3e9f2;--sidebar:#152231;--sidebar2:#1a2a3c;--blue:#3b82f6;--blue-soft:#eaf3ff;--green:#16a56a;--green-soft:#eaf9f2;--red:#ef476f;--orange:#ff9f1c;--amber:#f7b731;--purple:#805ad5;--shadow:0 5px 18px rgba(23,42,73,.07);--radius:16px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:linear-gradient(135deg,#f7f9fc 0%,#f3f7fb 55%,#eef4fb 100%);color:var(--text);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:14px}.app{min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:236px;background:linear-gradient(180deg,var(--sidebar),#111d2a 75%,#101b28);color:#d8e2ef;padding:22px 14px 18px;z-index:50;display:flex;flex-direction:column;box-shadow:12px 0 38px rgba(15,29,44,.09)}
.brand{display:flex;align-items:center;gap:12px;padding:0 10px 22px;border-bottom:1px solid rgba(255,255,255,.07)}.brand-mark{width:42px;height:42px;border:2px solid #4f9cff;border-radius:12px;display:grid;place-items:center;color:#62a8ff;background:rgba(60,130,246,.08)}.brand-mark svg{width:25px;height:25px}.brand-title{font-size:20px;font-weight:750;color:#fff;letter-spacing:-.02em}.brand-sub{font-size:11px;color:#9fb0c4;margin-top:2px}.nav{display:grid;gap:7px;margin-top:20px}.nav a{display:flex;align-items:center;gap:13px;padding:13px 14px;border-radius:11px;color:#c9d5e4;text-decoration:none;position:relative;transition:.2s ease}.nav a svg{width:20px;height:20px;stroke-width:2}.nav a:hover{background:rgba(255,255,255,.055);color:#fff}.nav a.active{background:linear-gradient(90deg,rgba(55,128,231,.28),rgba(51,103,173,.22));color:#fff;box-shadow:inset 3px 0 0 #4f9cff}.badge{margin-left:auto;min-width:20px;height:20px;padding:0 6px;border-radius:10px;background:#ff5364;color:#fff;font-size:11px;font-weight:700;display:grid;place-items:center}.sidebar-foot{margin-top:auto;padding:16px 11px 4px;border-top:1px solid rgba(255,255,255,.07);font-size:12px;color:#a9b8c9}.status-line{display:flex;align-items:center;gap:8px;margin-bottom:8px}.dot{width:9px;height:9px;border-radius:50%;background:#28c987;box-shadow:0 0 0 4px rgba(40,201,135,.08)}.dot.warn{background:#f2ad3a;box-shadow:0 0 0 4px rgba(242,173,58,.1)}
.main{margin-left:236px;padding:26px 28px 24px;min-height:100vh}.topbar{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;margin-bottom:20px}.eyebrow{font-size:12px;color:#7484a0;margin-bottom:6px}.title-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap}h1{font-size:30px;line-height:1.1;margin:0;letter-spacing:-.035em}.subtitle{color:#75839a;margin-top:7px}.online-pill{display:inline-flex;align-items:center;gap:8px;border-radius:999px;background:#e9f8f0;color:#197851;padding:8px 12px;font-size:12px;font-weight:650}.online-pill .dot{width:8px;height:8px;box-shadow:none}.top-actions{display:flex;align-items:center;gap:10px;padding-top:10px}.action-chip{height:42px;background:#fff;border:1px solid var(--line);border-radius:11px;display:flex;align-items:center;gap:9px;padding:0 13px;color:#40516d;box-shadow:0 3px 11px rgba(33,48,74,.045);white-space:nowrap}.action-chip svg{width:17px;height:17px}.clock{font-variant-numeric:tabular-nums}.menu-toggle{display:none;border:0;background:#fff;border-radius:10px;width:42px;height:42px;box-shadow:var(--shadow);color:var(--text)}
.kpi-grid{display:grid;grid-template-columns:repeat(4,minmax(180px,1fr));gap:12px;margin-bottom:14px}.kpi{background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:16px 16px 13px;min-height:106px;position:relative;overflow:hidden}.kpi::after{content:"";position:absolute;inset:auto -35px -45px auto;width:120px;height:120px;border-radius:50%;background:var(--glow,#eef5ff);opacity:.75}.kpi-head{display:flex;align-items:center;gap:9px;color:#506079;font-weight:650;position:relative;z-index:2}.kpi-head svg{width:20px;height:20px;color:var(--accent,var(--blue))}.kpi-value{font-size:26px;font-weight:780;letter-spacing:-.035em;margin:8px 0 4px;position:relative;z-index:2;font-variant-numeric:tabular-nums}.kpi-sub{font-size:12px;color:var(--muted);position:relative;z-index:2}.trend.up{color:#12a56b}.trend.down{color:#e45165}.trend.neutral{color:#8996aa}.spark{position:absolute;right:13px;bottom:12px;width:94px;height:32px;opacity:.9;z-index:1}.spark polyline{fill:none;stroke:var(--accent,var(--blue));stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.kpi.state-on{background:linear-gradient(135deg,#fff,#ebfaf2)}.kpi.state-off{background:linear-gradient(135deg,#fff,#f5f7fa)}
.dashboard-grid{display:grid;grid-template-columns:minmax(0,2.15fr) minmax(310px,.92fr);gap:14px}.stack{display:grid;gap:14px}.card{background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 18px}.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}.card-title{display:flex;align-items:center;gap:9px;font-size:17px;font-weight:750;letter-spacing:-.02em}.card-title svg{width:20px;height:20px}.card-meta{font-size:12px;color:#7b8ba2}.chart-wrap{position:relative;height:300px}.chart-wrap.short{height:220px}.chart-note{display:flex;gap:16px;align-items:center;flex-wrap:wrap;color:#6f7f96;font-size:11px;margin-top:9px}.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:11px}.mini-stat{border:1px solid var(--line);border-radius:13px;padding:14px;background:linear-gradient(145deg,#fff,#fbfdff);min-height:105px}.mini-label{display:flex;align-items:center;gap:7px;color:#506079;font-weight:650;font-size:12px}.mini-label svg{width:17px;height:17px}.mini-value{font-size:24px;font-weight:760;margin-top:9px;letter-spacing:-.03em;font-variant-numeric:tabular-nums}.mini-sub{font-size:11px;color:#8190a6;margin-top:4px}.events{display:grid;gap:0}.event{display:grid;grid-template-columns:18px 1fr auto;gap:9px;padding:10px 0;border-bottom:1px solid #edf1f6}.event:last-child{border-bottom:0}.event-dot{width:10px;height:10px;border-radius:50%;background:#21b978;margin-top:4px;position:relative}.event-dot::after{content:"";position:absolute;left:4px;top:10px;width:1px;height:35px;background:#dce5ee}.event:last-child .event-dot::after{display:none}.event-dot.warn{background:#eda93a}.event-title{font-weight:690;font-size:12.5px}.event-sub{font-size:11px;color:#8391a6;margin-top:2px}.event-time{font-size:11px;color:#8090a6;font-variant-numeric:tabular-nums}.health-banner{display:flex;align-items:center;gap:10px;margin-top:11px;padding:11px 12px;border-radius:12px;background:#eaf9f1;color:#187b54;font-size:12px;font-weight:650}.health-banner.warn{background:#fff6df;color:#8a6517}.health-banner svg{width:19px;height:19px}.summary-side{display:grid;gap:12px}.meter-row{display:flex;justify-content:space-between;align-items:flex-end;gap:10px;padding:10px 0;border-bottom:1px solid #edf1f5}.meter-row:last-child{border-bottom:0}.meter-name{font-size:12px;color:#697a92}.meter-value{font-size:19px;font-weight:750;font-variant-numeric:tabular-nums}.meter-date{font-size:10.5px;color:#8a98aa;margin-top:2px}.footer{margin-top:14px;border:1px solid var(--line);border-radius:13px;background:rgba(255,255,255,.72);display:flex;justify-content:space-between;gap:20px;align-items:center;padding:11px 15px;color:#78879b;font-size:11px}.footer strong{color:#3a536a}.section-anchor{scroll-margin-top:18px}.hide-desktop{display:none}
@media(max-width:1180px){.kpi-grid{grid-template-columns:repeat(2,1fr)}.dashboard-grid{grid-template-columns:1fr}.summary-side{grid-template-columns:1fr 1fr}.events-card{grid-column:1/-1}}
@media(max-width:780px){.sidebar{transform:translateX(-100%);transition:.25s ease}.sidebar.open{transform:translateX(0)}.main{margin-left:0;padding:18px 14px}.menu-toggle{display:grid;place-items:center}.topbar{align-items:center}.top-actions .action-chip.date-chip{display:none}.kpi-grid{grid-template-columns:1fr 1fr}.summary-side{grid-template-columns:1fr}.chart-wrap{height:255px}.chart-wrap.short{height:215px}.overlay{position:fixed;inset:0;background:rgba(8,20,33,.4);backdrop-filter:blur(2px);z-index:40;display:none}.overlay.show{display:block}.hide-mobile{display:none}.hide-desktop{display:flex}}
@media(max-width:520px){.kpi-grid{grid-template-columns:1fr}.mini-grid{grid-template-columns:1fr}h1{font-size:25px}.top-actions{gap:6px}.action-chip{padding:0 10px}.card{padding:14px}.chart-wrap{height:240px}.footer{display:block}.footer span:last-child{display:block;margin-top:4px}}


/* Secondary dashboard pages */
.page-tabs{display:flex;gap:8px;flex-wrap:wrap}.page-tabs a{display:inline-flex;align-items:center;gap:7px;text-decoration:none;color:#52637b;background:#fff;border:1px solid var(--line);padding:9px 12px;border-radius:10px;font-size:12px;font-weight:650}.page-tabs a.active,.page-tabs a:hover{color:#176ed6;border-color:#bcd7ff;background:#eef6ff}.page-tabs svg{width:15px;height:15px}.page-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:14px}.span-12{grid-column:span 12}.span-8{grid-column:span 8}.span-7{grid-column:span 7}.span-6{grid-column:span 6}.span-5{grid-column:span 5}.span-4{grid-column:span 4}.span-3{grid-column:span 3}.metric-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:14px}.metric-box{background:#fff;border:1px solid var(--line);border-radius:14px;padding:15px 16px;box-shadow:var(--shadow)}.metric-box .label{font-size:11.5px;color:#71819a}.metric-box .value{font-size:24px;font-weight:780;margin-top:6px;letter-spacing:-.03em}.metric-box .hint{font-size:10.5px;color:#8a98aa;margin-top:3px}.sensor-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.sensor-card{display:flex;align-items:center;justify-content:space-between;gap:14px;border:1px solid var(--line);border-radius:13px;padding:13px 14px;background:linear-gradient(145deg,#fff,#fbfdff)}.sensor-name{font-size:12px;color:#63748c}.sensor-value{font-size:21px;font-weight:760;text-align:right}.sensor-time{font-size:10px;color:#8b99aa;text-align:right;margin-top:2px}.table-wrap{overflow:auto}.data-table{width:100%;border-collapse:collapse;min-width:650px}.data-table th,.data-table td{text-align:left;padding:11px 10px;border-bottom:1px solid #edf1f5;font-size:12px}.data-table th{color:#77869b;font-weight:650;background:#fafcff;position:sticky;top:0}.status-chip{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:6px 9px;font-size:11px;font-weight:700;background:#eaf9f1;color:#187b54}.status-chip.warn{background:#fff4dc;color:#8f6819}.status-chip.bad{background:#fff0f2;color:#b33d4d}.insight-list{display:grid;gap:10px}.insight{border:1px solid var(--line);border-radius:12px;padding:12px;background:#fff}.insight strong{font-size:12px}.insight p{font-size:11px;color:#79889e;line-height:1.5;margin:4px 0 0}.callout{border-radius:13px;padding:13px 14px;background:#eef6ff;border:1px solid #d8e8ff;color:#385a83;font-size:12px;line-height:1.55}.callout.warn{background:#fff8e8;border-color:#f6e5bd;color:#795c21}.range-form{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.range-form select,.range-form input,.range-form button{height:38px;border:1px solid var(--line);border-radius:10px;background:#fff;color:#445570;padding:0 11px;font:inherit}.range-form button{cursor:pointer;font-weight:700;color:#176ed6}.big-number{font-size:35px;font-weight:800;letter-spacing:-.045em}.subtle{color:#7f8ea2;font-size:11px}.progress{height:7px;background:#edf1f6;border-radius:999px;overflow:hidden}.progress span{display:block;height:100%;background:linear-gradient(90deg,#397df4,#6ba3ff);border-radius:inherit}.empty{padding:28px;text-align:center;color:#8492a7}.settings-list{display:grid;gap:0}.settings-row{display:flex;justify-content:space-between;gap:20px;padding:12px 0;border-bottom:1px solid #edf1f5}.settings-row:last-child{border-bottom:0}.settings-key{color:#6f7f95;font-size:12px}.settings-value{font-weight:700;font-size:12px;text-align:right}.chart-wrap.tall{height:360px}.chart-wrap.medium{height:260px}
@media(max-width:1180px){.span-8,.span-7,.span-6,.span-5,.span-4,.span-3{grid-column:span 12}.metric-strip{grid-template-columns:repeat(2,1fr)}.sensor-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.metric-strip,.sensor-grid{grid-template-columns:1fr}.page-tabs{display:grid;grid-template-columns:1fr 1fr}.page-tabs a{justify-content:center}.range-form{width:100%}.range-form select,.range-form input,.range-form button{flex:1}.big-number{font-size:30px}}

/* Hydraulic circuit view */
.hydraulic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-bottom:14px}.circuit-card{background:rgba(255,255,255,.95);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:17px;position:relative;overflow:hidden}.circuit-card::after{content:"";position:absolute;width:160px;height:160px;border-radius:50%;right:-70px;top:-80px;background:var(--circuit-glow,#eef5ff);opacity:.72}.circuit-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;position:relative;z-index:1}.circuit-title{font-size:16px;font-weight:760;letter-spacing:-.02em}.circuit-sub{font-size:11px;color:var(--muted);margin-top:3px}.circuit-icon{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:var(--circuit-glow,#eef5ff);color:var(--circuit-color,var(--blue))}.circuit-icon svg{width:20px;height:20px}.flowline{display:flex;align-items:center;gap:7px;margin:16px 0 14px;position:relative;z-index:1;min-height:36px}.flow-node{padding:8px 10px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:11px;font-weight:680;white-space:nowrap}.flow-arrow{color:#98a8ba;font-size:18px}.flow-arrow.active{color:var(--circuit-color,var(--green));font-weight:800}.circuit-statuses{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:12px;position:relative;z-index:1}.state-pill{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:6px 9px;background:#f1f4f8;color:#627187;font-size:11px;font-weight:700}.state-pill.on{background:#e7f8ef;color:#14774f}.state-pill .mini-dot{width:7px;height:7px;border-radius:50%;background:#9aabbc}.state-pill.on .mini-dot{background:#21b978}.circuit-values{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;position:relative;z-index:1}.circuit-value{border-top:1px solid #edf1f6;padding-top:8px}.circuit-value .name{font-size:10.5px;color:#7d8ba0}.circuit-value .value{font-size:17px;font-weight:760;margin-top:2px;font-variant-numeric:tabular-nums}.mode-card{grid-column:1/-1;display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;padding:13px 15px;border:1px solid var(--line);border-radius:13px;background:linear-gradient(90deg,#fff,#f7fbff);margin-bottom:14px}.mode-card .mode-icon{width:39px;height:39px;border-radius:12px;background:#edf5ff;color:#397df4;display:grid;place-items:center}.mode-card .mode-title{font-weight:760}.mode-card .mode-sub{font-size:11px;color:var(--muted);margin-top:2px}.mode-card .mode-value{font-weight:800;font-size:17px;text-align:right}.delta-good{color:#16865b}.delta-low{color:#d18a16}
@media(max-width:1180px){.hydraulic-grid{grid-template-columns:1fr}.flowline{justify-content:flex-start}.circuit-values{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:650px){.circuit-values{grid-template-columns:1fr 1fr}.flowline{overflow-x:auto;padding-bottom:3px}.mode-card{grid-template-columns:auto 1fr}.mode-card .mode-value{grid-column:2;text-align:left}}

/* Heating authority strip */
.authority-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-bottom:14px}
.authority-strip>div{background:rgba(255,255,255,.82);border:1px solid var(--line);border-radius:12px;padding:11px 13px;box-shadow:0 3px 12px rgba(23,42,73,.045)}
.authority-strip span{display:block;font-size:10.5px;color:#7d8ba0;margin-bottom:3px}
.authority-strip strong{display:block;font-size:12px;color:#40516d;line-height:1.35}
@media(max-width:980px){.authority-strip{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.authority-strip{grid-template-columns:1fr}}

/* Meter entry / utility billing */
.meter-form{display:grid;gap:12px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.form-grid label,.form-wide{display:grid;gap:6px}.form-grid label span,.form-wide span{font-size:11px;color:#6f7f95;font-weight:650}.form-grid input,.form-wide input{width:100%;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;color:#33445f;padding:0 11px;font:inherit}.form-grid input:focus,.form-wide input:focus{outline:2px solid #d9eaff;border-color:#9cc4ff}.primary-button{height:43px;border:0;border-radius:11px;background:#2376e5;color:#fff;font-weight:750;padding:0 16px;cursor:pointer;box-shadow:0 6px 16px rgba(35,118,229,.18)}.primary-button:hover{background:#1769d2}
@media(max-width:700px){.form-grid{grid-template-columns:1fr}}