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

:root{
  --copper:#C17B3C;
  --copper-d:#9B5F28;
  --copper-l:#E0964E;
  --copper-f:rgba(193,123,60,0.1);
  --copper-b:rgba(193,123,60,0.35);
  --text:#1A1A18;
  --text2:#6B6B67;
  --bg:#EDEAE6;
  --surface:#FAFAF8;
  --surface2:#F0EDE8;
  --border:rgba(0,0,0,0.1);
  --stat-bg:rgba(255,255,255,0.6);
  --radius:10px;
  --shadow:0 1px 4px rgba(0,0,0,0.07);
}

@media(prefers-color-scheme:dark){
  :root{
    --copper:#D4893E;
    --copper-d:#B87030;
    --copper-l:#E8A865;
    --copper-f:rgba(212,137,62,0.12);
    --copper-b:rgba(212,137,62,0.35);
    --text:#F0EDE8;
    --text2:#9A9A96;
    --bg:#1A1A18;
    --surface:#232321;
    --surface2:#2D2D2B;
    --border:rgba(255,255,255,0.08);
    --stat-bg:rgba(0,0,0,0.25);
    --shadow:0 1px 4px rgba(0,0,0,0.3);
  }
}

body{font-family:system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}

/* ── Nav ─────────────────────────────────────────────────────── */
nav{background:#002447;height:52px;padding:0 1.5rem;display:flex;align-items:center;gap:2rem;position:sticky;top:0;z-index:100}
.nav-brand{color:#fff;font-size:15px;font-weight:700;letter-spacing:0.08em;text-decoration:none;display:flex;align-items:center;gap:2px}
.nav-brand em{color:var(--copper);font-style:normal}
.nav-links{display:flex;gap:2px}
.nav-link{color:rgba(255,255,255,0.55);text-decoration:none;font-size:13px;padding:6px 12px;border-radius:6px;transition:all 0.15s;white-space:nowrap}
.nav-link:hover{color:#fff;background:rgba(255,255,255,0.08)}
.nav-link.active{color:var(--copper-l);background:rgba(193,123,60,0.15)}
.nav-lock{margin-left:auto;background:none;border:none;color:rgba(255,255,255,0.4);font-size:14px;padding:4px 8px;cursor:pointer;border-radius:6px;transition:color 0.15s}
.nav-lock:hover{color:rgba(255,255,255,0.8);background:rgba(255,255,255,0.08)}
.nav-lock.unlocked{color:var(--copper-l)}

/* ── Layout ──────────────────────────────────────────────────── */
.page{padding:1.5rem;max-width:1100px;margin:0 auto}

/* ── Cards ───────────────────────────────────────────────────── */
.card{background:var(--surface);border:0.5px solid var(--border);border-radius:var(--radius);padding:1.25rem;margin-bottom:1rem;box-shadow:var(--shadow)}
.card-title{font-size:14px;font-weight:500;margin-bottom:1rem;color:var(--text)}

/* ── Typography ──────────────────────────────────────────────── */
h1{font-size:20px;font-weight:600;margin-bottom:4px;letter-spacing:0.02em}
h2{font-size:17px;font-weight:500;margin-bottom:1rem}
.subtitle{font-size:13px;color:var(--text2);margin-bottom:1.5rem}

/* ── Buttons ─────────────────────────────────────────────────── */
button{font-size:13px;font-weight:500;padding:7px 16px;border-radius:8px;border:0.5px solid var(--border);background:transparent;color:var(--text);cursor:pointer;transition:background 0.15s,border-color 0.15s;font-family:inherit}
button:hover{background:var(--surface2)}
button.primary{background:var(--copper);color:#fff;border-color:var(--copper)}
button.primary:hover{background:var(--copper-d);border-color:var(--copper-d)}
button.active{background:var(--copper);color:#fff;border-color:var(--copper)}
button.active:hover{background:var(--copper-d)}
button.ghost{color:var(--text2);border-color:transparent}
button.ghost:hover{color:var(--text);background:var(--surface2);border-color:var(--border)}
button.danger-ghost{color:#A32D2D;border-color:transparent;font-size:12px;padding:4px 10px}
button.danger-ghost:hover{background:rgba(163,45,45,0.08);border-color:rgba(163,45,45,0.2)}
.btn-row{display:flex;gap:8px;margin-top:10px;align-items:center;flex-wrap:wrap}

/* ── Textarea ────────────────────────────────────────────────── */
textarea{width:100%;min-height:120px;font-family:'Consolas','Courier New',monospace;font-size:12px;border:0.5px solid var(--border);border-radius:8px;padding:10px;background:var(--surface2);color:var(--text);resize:vertical;line-height:1.6}
textarea:focus{outline:none;border-color:var(--copper)}

/* ── Form inputs ─────────────────────────────────────────────── */
input[type=text],input[type=number],select{font-size:13px;padding:8px 10px;border-radius:8px;border:0.5px solid var(--border);background:var(--surface2);color:var(--text);font-family:inherit;width:100%}
input:focus,select:focus{outline:none;border-color:var(--copper)}
label{font-size:11px;font-weight:500;color:var(--text2);display:block;margin-bottom:5px;text-transform:uppercase;letter-spacing:0.04em}
.field{margin-bottom:14px}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;align-items:end}

/* ── Error / status ──────────────────────────────────────────── */
.error{color:#A32D2D;font-size:13px}
.success{font-size:13px;color:#3B6D11}
@media(prefers-color-scheme:dark){.success{color:#7DC14A}}
.info-box{background:var(--surface2);border:0.5px solid var(--border);border-radius:8px;padding:10px 14px;font-size:12px;color:var(--text2);margin-bottom:1rem}

/* ── Summary blocks ──────────────────────────────────────────── */
.summary-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:1rem}
@media(max-width:560px){.summary-row{grid-template-columns:1fr}}

.sum-block{border-radius:var(--radius);padding:1rem 1.1rem}
.sum-block.current{background:var(--copper-f);border:0.5px solid var(--copper-b)}
.sum-block.prev{background:var(--surface2);border:0.5px solid var(--border)}
.sum-block.nodata{background:var(--surface2);border:0.5px solid var(--border);opacity:0.6}

.sum-title{font-size:11px;font-weight:600;margin-bottom:10px;letter-spacing:0.05em;text-transform:uppercase}
.sum-title.current{color:var(--copper)}
.sum-title.prev,.sum-title.nodata{color:var(--text2)}

.sum-stats{display:grid;grid-template-columns:1fr 1fr;gap:7px}
.sum-stat{border-radius:7px;padding:8px 10px;text-align:center;background:var(--stat-bg)}
.sum-stat-label{font-size:10px;margin-bottom:3px;color:var(--text2)}
.sum-stat-value{font-size:15px;font-weight:500;color:var(--text)}
.sum-block.current .sum-stat-value{color:var(--copper-d)}
@media(prefers-color-scheme:dark){.sum-block.current .sum-stat-value{color:var(--copper-l)}}
.sum-stat-sub{font-size:10px;margin-top:2px;color:var(--text2)}
.sum-incomplete{font-size:11px;margin-top:8px;padding:5px 8px;border-radius:6px;background:rgba(0,0,0,0.04);color:var(--text2)}
@media(prefers-color-scheme:dark){.sum-incomplete{background:rgba(255,255,255,0.04)}}

/* ── Metric cards ────────────────────────────────────────────── */
.metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:10px;margin-bottom:1rem}
.metric{background:var(--surface2);border-radius:8px;padding:0.9rem 1rem;text-align:center;border:0.5px solid var(--border)}
.metric-label{font-size:10px;color:var(--text2);margin-bottom:6px;text-transform:uppercase;letter-spacing:0.05em}
.metric-value{font-size:19px;font-weight:500;color:var(--text)}
.metric.hi .metric-value{color:var(--copper)}
.metric-sub{font-size:10px;color:var(--text2);margin-top:4px;min-height:14px;line-height:14px}

/* ── Aggregation controls ────────────────────────────────────── */
.agg-row{display:flex;gap:8px;margin-bottom:1rem;align-items:center;flex-wrap:wrap}
.agg-label{font-size:12px;color:var(--text2);margin-right:2px}

/* ── Period navigation ───────────────────────────────────────── */
.period-nav{display:flex;align-items:center;gap:4px}
.period-nav-label{font-size:14px;font-weight:600;color:var(--text);min-width:130px;text-align:center}
.nav-arrow{padding:5px 12px;font-size:17px;line-height:1;border-radius:8px}
.nav-arrow:disabled{opacity:0.25;cursor:default;pointer-events:none}

/* ── Chart containers ────────────────────────────────────────── */
.chart-wrap{position:relative;width:100%}
#dashboard{display:none}

/* ── CREG table ──────────────────────────────────────────────── */
.creg-table{width:100%;border-collapse:collapse;font-size:13px}
.creg-table th{text-align:left;padding:8px 12px;font-size:10px;font-weight:600;color:var(--text2);text-transform:uppercase;letter-spacing:0.05em;border-bottom:0.5px solid var(--border)}
.creg-table td{padding:9px 12px;border-bottom:0.5px solid var(--border);vertical-align:middle}
.creg-table tbody tr:last-child td{border-bottom:none}
.creg-table tbody tr:hover td{background:var(--surface2)}
.creg-val{font-weight:600;color:var(--copper)}
.creg-badge{display:inline-block;font-size:10px;padding:2px 7px;border-radius:4px;font-weight:500;background:var(--copper-f);color:var(--copper);border:0.5px solid var(--copper-b)}
.creg-badge.file{background:var(--surface2);color:var(--text2);border-color:var(--border)}
.creg-empty{padding:2rem;text-align:center;color:var(--text2);font-size:13px}
.creg-edit-btn{font-size:11px;padding:3px 10px;color:var(--text2)}

/* ── Section header ──────────────────────────────────────────── */
.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}
.section-header h2{margin:0}

/* ── Report page ─────────────────────────────────────────────── */
.rpt-card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:0}
.rpt-nav-row{display:flex;align-items:center;gap:6px}
.rpt-print-btn{font-size:12px;padding:6px 14px}
.rpt-month{font-size:22px;font-weight:600;color:var(--text);letter-spacing:0.01em;min-width:220px;text-align:center}

.rpt-divider{border:none;border-top:0.5px solid var(--border);margin:1.1rem 0}

.rpt-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:0.5rem}
@media(max-width:480px){.rpt-summary{grid-template-columns:1fr 1fr}}
.rpt-stat{background:var(--surface2);border:0.5px solid var(--border);border-radius:8px;padding:12px 14px}
.rpt-stat.hi{background:var(--copper-f);border-color:var(--copper-b)}
.rpt-stat-label{font-size:10px;text-transform:uppercase;letter-spacing:0.05em;color:var(--text2);margin-bottom:5px}
.rpt-stat-value{font-size:17px;font-weight:600;color:var(--text)}
.rpt-stat.hi .rpt-stat-value{color:var(--copper)}
@media(prefers-color-scheme:dark){.rpt-stat.hi .rpt-stat-value{color:var(--copper-l)}}

.rpt-notariff{font-size:12px;color:var(--text2);margin-top:6px}
.rpt-notariff a{color:var(--copper);text-decoration:none}
.rpt-notariff a:hover{text-decoration:underline}

.report-warning{background:#FFF8E8;border:0.5px solid #E0C060;border-radius:8px;padding:10px 14px;font-size:13px;color:#6B5200;margin-bottom:1rem}
@media(prefers-color-scheme:dark){.report-warning{background:rgba(180,140,20,0.12);border-color:rgba(180,140,20,0.3);color:#D4B84A}}

.report-table{width:100%;border-collapse:collapse;font-size:12.5px}
.report-table th{text-align:left;padding:7px 10px;font-size:10px;font-weight:600;color:var(--text2);text-transform:uppercase;letter-spacing:0.05em;border-bottom:1px solid var(--border)}
.report-table td{padding:7px 10px;border-bottom:0.5px solid var(--border)}
.report-table tbody tr:last-child td{border-bottom:none}
.report-table tbody tr:hover td{background:var(--surface2)}
.report-table tfoot td{border-top:1px solid var(--border);border-bottom:none;padding-top:8px;font-weight:600}
.rpt-th-num,.rpt-num{text-align:right}
.report-table .rpt-th-num{text-align:right}
.rpt-date{color:var(--text2);white-space:nowrap;font-variant-numeric:tabular-nums}
.rpt-foot-label{color:var(--text2);font-size:11px;text-transform:uppercase;letter-spacing:0.04em}
.rpt-foot{color:var(--copper)}
.report-empty{padding:1.5rem;text-align:center;color:var(--text2)}

/* ── Report info section ─────────────────────────────────────── */
.rpt-info-section{display:flex;gap:2rem;flex-wrap:wrap;padding:10px 0 4px}
.rpt-info-item{display:flex;flex-direction:column;gap:2px}
.rpt-info-label{font-size:9px;font-weight:600;color:var(--text2);text-transform:uppercase;letter-spacing:0.06em}
.rpt-info-value{font-size:13px;color:var(--text);font-weight:500}

/* ── Report calendar ─────────────────────────────────────────── */
.rpt-calendar{margin-top:1.5rem}
.rpt-cal-title{font-size:10px;font-weight:600;color:var(--text2);text-transform:uppercase;letter-spacing:0.05em;margin-bottom:0.6rem}
.rpt-cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}
.rpt-cal-day-name{text-align:center;font-size:10px;font-weight:600;color:var(--text2);text-transform:uppercase;letter-spacing:0.03em;padding:5px 2px}
.rpt-cal-cell{border-radius:6px;padding:7px 6px;min-height:62px;background:var(--surface2);border:0.5px solid var(--border)}
.rpt-cal-cell.empty{background:transparent;border-color:transparent}
.rpt-cal-cell.has-data{background:var(--copper-f);border-color:var(--copper-b)}
.rpt-cal-num{font-size:11px;color:var(--text2);font-weight:500}
.rpt-cal-cell.has-data .rpt-cal-num{color:var(--copper)}
.rpt-cal-kwh{font-size:10px;color:var(--copper);font-weight:600;margin-top:4px;font-variant-numeric:tabular-nums}
.rpt-cal-cost{font-size:10px;color:var(--text);font-weight:500;margin-top:2px;font-variant-numeric:tabular-nums}

@media print{
  nav,.rpt-print-btn,.nav-arrow,.bottom-nav{display:none!important}
  body,html{background:white}
  .card{box-shadow:none;border:1px solid #ccc}
  .page{padding:0;max-width:none}
  .rpt-stat{background:#f5f5f5;border:1px solid #ccc}
  .rpt-stat.hi{background:#fdf3e8;border-color:#c9956a}
  .rpt-stat-value,.rpt-stat.hi .rpt-stat-value{color:#1A1A18}
  .rpt-foot{color:#1A1A18}
  .report-warning{background:#fff8e8;border-color:#e0b040;color:#5a4200;-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .report-table td{border:none!important}
  .report-table tbody tr:hover td{background:none!important}
  .report-table thead th{border-bottom:1px solid #ccc!important}
  .report-table tfoot td{border-top:1px solid #ccc!important}
  .report-table tr{page-break-inside:avoid}
  .rpt-cal-cell{background:#f5f5f5;border:0.5px solid #ccc}
  .rpt-cal-cell.has-data{background:#fdf3e8;border-color:#c9956a;-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .rpt-cal-kwh{color:#1A1A18}
  .rpt-cal-cost{color:#444}
}

/* ── Dashboard topbar ────────────────────────────────────────── */
.dash-topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:0.75rem}

/* ── Data modal ──────────────────────────────────────────────── */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.45);display:flex;align-items:center;justify-content:center;z-index:500}
.modal{background:var(--surface);border-radius:var(--radius);padding:1.5rem;width:min(520px,90vw);border:0.5px solid var(--border);box-shadow:0 8px 32px rgba(0,0,0,0.2)}
.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}
.modal-title{font-size:15px;font-weight:600}
.modal-last-wrap{margin-bottom:0.8rem}
.modal-last-label{font-size:10px;font-weight:600;color:var(--text2);text-transform:uppercase;letter-spacing:0.05em;margin-bottom:5px}
.modal-last-entry{font-family:'Consolas','Courier New',monospace;font-size:11.5px;color:var(--text2);background:var(--surface2);border-radius:6px;padding:8px 10px;display:block}
.modal-actions{display:flex;gap:8px;align-items:center;margin-top:10px}

/* ── Bottom navigation (mobile) ─────────────────────────────── */
.bottom-nav{display:none;position:fixed;bottom:0;left:0;right:0;z-index:100;background:#002447;border-top:0.5px solid rgba(255,255,255,0.1)}
.bottom-nav-items{display:flex;padding-bottom:env(safe-area-inset-bottom)}
.bottom-nav-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:9px 0;text-decoration:none;color:rgba(255,255,255,0.45);font-size:10px;font-weight:500;letter-spacing:0.02em;transition:color 0.15s}
.bottom-nav-item.active{color:var(--copper-l)}

/* ── Mobile breakpoint ───────────────────────────────────────── */
@media(max-width:640px){
  .bottom-nav{display:block}
  .nav-links{display:none}
  nav{height:48px;padding:0 1rem;gap:0.5rem}

  .page{padding:0.75rem;padding-bottom:calc(68px + env(safe-area-inset-bottom))}
  .card{padding:0.9rem;margin-bottom:0.75rem}

  .metrics{grid-template-columns:1fr 1fr}
  .metric-value{font-size:17px}
  .dash-topbar{flex-wrap:wrap;gap:6px;margin-bottom:0.5rem}
  #btnUpdate{font-size:12px;padding:5px 12px}
  .period-nav-label{min-width:80px;font-size:13px}

  .rpt-card-header{flex-wrap:wrap;gap:6px}
  .rpt-month{min-width:unset;font-size:18px}
  .rpt-print-btn{display:none}
  .rpt-info-section{gap:1.2rem}
  .rpt-summary{grid-template-columns:1fr 1fr}
  .rpt-summary .rpt-stat:nth-child(3){grid-column:span 2}
  .rpt-stat{padding:10px 12px}
  .rpt-stat-value{font-size:15px}

  .rpt-cal-grid{gap:2px}
  .rpt-cal-cell{min-height:48px;padding:4px 3px}
  .rpt-cal-kwh,.rpt-cal-cost,.rpt-cal-num{font-size:9px}
  .rpt-cal-day-name{font-size:8px;padding:4px 1px}

  .section-header{flex-direction:column;align-items:flex-start;gap:8px}
  .creg-table{font-size:12px}
  .creg-table td,.creg-table th{padding:7px 8px}

  .modal{padding:1.1rem;width:min(520px,95vw)}
}