/* Direction: ISP billing console — deep navy and white, brand-red highlights */
:root {
  --canvas: #f1f4fa;
  --surface: #ffffff;
  --surface-2: #e9eef8;
  --border: #d6deee;
  --border-strong: #aab6d0;
  --ink: #0e1a33;
  --muted: #4f5b75;
  --accent: #1d3a8a;
  --accent-hover: #17306f;
  --accent-ink: #ffffff;
  --accent-text: #1d3a8a;
  --accent-strong: #17306f;
  --accent-soft: #e2e9fb;
  --accent-border: #b5c3ec;
  --success: #15803d;
  --success-ink: #ffffff;
  --success-soft: #dcf0e3;
  --success-strong: #116631;
  --warning: #b45309;
  --warning-ink: #ffffff;
  --warning-soft: #f7e8d5;
  --warning-strong: #8f4207;
  --danger: #c8202f;
  --danger-ink: #ffffff;
  --danger-soft: #fbe1e3;
  --danger-strong: #a31a26;
  --chart-1: #1d3a8a;
  --chart-2: #c8202f;
  --chart-3: #15803d;
  --chart-4: #b45309;
  --chart-5: #0b6b82;
  --chart-6: #6b3fa0;

  --font-display: "Plus Jakarta Sans", "Noto Sans Bengali", system-ui, sans-serif;
  --font-body: "Inter", "Noto Sans Bengali", system-ui, sans-serif;
  --font-sans: "Inter", "Noto Sans Bengali", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
  --display-weight: 700;
  --display-tracking: -0.015em;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-input: 8px;
  --shadow-card: 0 1px 2px rgba(14, 26, 51, 0.06), 0 4px 14px rgba(14, 26, 51, 0.05);

  --x-side: #0a1530;
  --x-side-2: #162553;
  --x-side-navy: #0a1530;
  --x-side-navy-2: #162553;
  --x-side-charcoal: #14161c;
  --x-side-charcoal-2: #252a35;
  --x-side-forest: #0a2a22;
  --x-side-forest-2: #14463a;
  --x-brand: #d6212f;
  --x-on-photo: #ffffff;
  --x-card-navy: #1d3a8a;
  --x-card-green: #15803d;
  --x-card-red: #c8202f;
  --x-card-dark: #101828;
  --x-k-blue: #1f66d6; --x-k-blue-2: #174fb0;
  --x-k-green: #0c8062; --x-k-green-2: #096048;
  --x-k-red: #c8304a; --x-k-red-2: #a5223a;
  --x-k-amber: #f5b60a; --x-k-amber-2: #e8a200; --x-on-amber: #2a1c00;
  --x-k-slate: #55617a; --x-k-slate-2: #3d4860;
  --x-k-cyan: #0a85a0; --x-k-cyan-2: #076b82;
  --x-k-teal: #0b8272; --x-k-teal-2: #086858;
  --x-k-navy: #0b2d6e; --x-k-navy-2: #061f50;
  --x-k-dark: #33405a; --x-k-dark-2: #222c42;
}

html[data-theme="dark"] {
  --canvas: #0b1226;
  --surface: #131c36;
  --surface-2: #1a2547;
  --border: #26335c;
  --border-strong: #3f507f;
  --ink: #eef2fb;
  --muted: #a5b1cf;
  --accent: #5b83ee;
  --accent-hover: #7595f1;
  --accent-ink: #0a1530;
  --accent-text: #8fadf5;
  --accent-strong: #b3c6f8;
  --accent-soft: #1b2b5e;
  --accent-border: #34498a;
  --success: #22a24f;
  --success-ink: #07200f;
  --success-soft: #11301f;
  --success-strong: #6fd391;
  --warning: #d97a1c;
  --warning-ink: #261200;
  --warning-soft: #36250f;
  --warning-strong: #eaa65f;
  --danger: #e0434f;
  --danger-ink: #2b0409;
  --danger-soft: #3a1318;
  --danger-strong: #f0959c;
  --chart-1: #6f94f2;
  --chart-2: #ef6a75;
  --chart-3: #3fbf6c;
  --chart-4: #e69a47;
  --chart-5: #3cb7d3;
  --chart-6: #a98adb;
}

/* B NET ISP Dashboard — application shell, tables, charts, printable documents */
[data-dash="charcoal"] { --x-side: var(--x-side-charcoal); --x-side-2: var(--x-side-charcoal-2); }
[data-dash="forest"] { --x-side: var(--x-side-forest); --x-side-2: var(--x-side-forest-2); }

.app { display: flex; min-height: 100vh; }
.app-side { width: 16.5rem; flex: none; background: var(--x-side); color: var(--x-on-photo); position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; transition: width .2s ease; z-index: 40; }
.app-side nav { flex: 1; overflow-y: auto; padding: .5rem .6rem 1rem; display: flex; flex-direction: column; gap: 2px; }
.app-brand { padding: 1.1rem 1rem .9rem; display: flex; align-items: center; gap: .6rem; min-height: 4.5rem; }
.nav-link { display: flex; align-items: center; gap: .75rem; padding: .62rem .8rem; border-radius: 8px; font-size: .88rem; color: var(--x-on-photo); opacity: .82; transition: background .15s, opacity .15s; white-space: nowrap; }
.nav-link:hover { background: var(--x-side-2); opacity: 1; }
.nav-link:focus-visible { outline: 2px solid var(--x-on-photo); outline-offset: -2px; }
.nav-link.on { background: var(--x-brand); opacity: 1; font-weight: 600; }
.nav-sep { font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; opacity: .5; padding: .9rem .8rem .3rem; }
.app-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.app-top { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; gap: .75rem; padding: .6rem 1rem; background: var(--surface); border-bottom: 1px solid var(--border); }
.app-content { padding: 1.25rem 1rem 3rem; width: 100%; max-width: 88rem; margin: 0 auto; }
@media (min-width: 768px) { .app-content { padding: 1.75rem 1.75rem 3rem; } }
.app.collapsed .app-side { width: 4.6rem; }
.app.collapsed .nav-label, .app.collapsed .brand-text, .app.collapsed .nav-sep { display: none; }
.app.collapsed .nav-link { justify-content: center; }
.scrim { display: none; }
@media (max-width: 1023px) {
  .app-side { position: fixed; left: 0; top: 0; transform: translateX(-100%); transition: transform .2s ease; width: 16.5rem !important; }
  .app.open .app-side { transform: none; }
  .app.open .scrim { display: block; position: fixed; inset: 0; background: rgba(0, 0, 0, .45); z-index: 35; }
  .app.collapsed .nav-label, .app.collapsed .brand-text, .app.collapsed .nav-sep { display: initial; }
  .app.collapsed .nav-link { justify-content: flex-start; }
}

.brand { display: inline-flex; align-items: center; gap: .15rem; line-height: 1; }
.brand-b { width: 2.3rem; height: 2.3rem; border-radius: 999px; background: var(--x-brand); color: var(--x-on-photo); display: inline-grid; place-items: center; font: 800 1.5rem/1 var(--font-display); }
.brand-net { font: 800 1.7rem/1 var(--font-display); letter-spacing: -.03em; color: var(--x-on-photo); }
.brand-sub { display: block; font-size: .62rem; opacity: .7; letter-spacing: .02em; margin-top: .2rem; }
.brand-light .brand-net { color: var(--ink); }

.stat { border-radius: var(--radius-card); padding: 1rem 1.1rem; color: var(--x-on-photo); display: flex; flex-direction: column; gap: .15rem; box-shadow: var(--shadow-card); position: relative; overflow: hidden; }
.stat .stat-n { font: 700 1.9rem/1.1 var(--font-display); }
.stat .stat-l { font-size: .82rem; opacity: .92; display: flex; align-items: center; gap: .4rem; }
.stat a { color: var(--x-on-photo); font-size: .75rem; opacity: .9; text-decoration: underline; text-underline-offset: 2px; }
.stat-navy { background: var(--x-card-navy); } .stat-green { background: var(--x-card-green); } .stat-red { background: var(--x-card-red); } .stat-dark { background: var(--x-card-dark); }
.stat-plain { background: var(--surface); color: var(--ink); border: 1px solid var(--border); }
.stat-plain a { color: var(--accent-text); }

.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-card); box-shadow: var(--shadow-card); padding: 1rem 1.1rem; }
.panel-h { display: flex; align-items: center; justify-content: space-between; gap: .75rem; margin-bottom: .75rem; flex-wrap: wrap; }
.panel-h h2 { font: 700 1rem/1.3 var(--font-display); }

.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.dt { width: 100%; border-collapse: collapse; font-size: .85rem; }
.dt th { text-align: left; font-weight: 600; font-size: .75rem; color: var(--muted); padding: .55rem .6rem; border-bottom: 1px solid var(--border-strong); white-space: nowrap; background: var(--surface-2); }
.dt td { padding: .55rem .6rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
.dt tbody tr:hover { background: var(--accent-soft); }
.dt .num { text-align: right; font-variant-numeric: tabular-nums; }
.dt .act { white-space: nowrap; text-align: right; }
.dt tr[hidden] { display: none; }

.b-ok, .b-warn, .b-bad, .b-info, .b-mute { display: inline-flex; align-items: center; gap: .25rem; font-size: .72rem; font-weight: 600; padding: .15rem .55rem; border-radius: 999px; white-space: nowrap; }
.b-ok { background: var(--success-soft); color: var(--success-strong); }
.b-warn { background: var(--warning-soft); color: var(--warning-strong); }
.b-bad { background: var(--danger-soft); color: var(--danger-strong); }
.b-info { background: var(--accent-soft); color: var(--accent-strong); }
.b-mute { background: var(--surface-2); color: var(--muted); }

.pills { display: flex; gap: .35rem; overflow-x: auto; padding-bottom: .25rem; }
.pills a { padding: .4rem .85rem; border-radius: 999px; font-size: .82rem; font-weight: 600; color: var(--muted); border: 1px solid var(--border); background: var(--surface); white-space: nowrap; }
.pills a:hover { border-color: var(--accent); color: var(--accent-text); }
.pills a.on { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

.bar-chart text, .line-chart text { fill: var(--muted); font-size: 11px; }
.chart-grid { stroke: var(--border); stroke-width: 1; }
.chart-a { fill: var(--chart-1); } .chart-b { fill: var(--chart-2); }
.chart-line { stroke: var(--chart-2); fill: none; stroke-width: 2.5; stroke-linejoin: round; }
.chart-area { fill: var(--chart-2); opacity: .1; }
.chart-dot { fill: var(--surface); stroke: var(--chart-2); stroke-width: 2; }

.login-wrap { min-height: 100vh; display: grid; grid-template-columns: 1fr; }
@media (min-width: 900px) { .login-wrap { grid-template-columns: 1fr 1.1fr; } }
.login-art { display: none; background: var(--x-side); color: var(--x-on-photo); position: relative; overflow: hidden; padding: 3rem; align-content: end; }
@media (min-width: 900px) { .login-art { display: grid; } }
.login-art::before { content: ""; position: absolute; width: 38rem; height: 38rem; border-radius: 999px; right: -14rem; top: -10rem; background: var(--x-brand); opacity: .9; }
.login-art::after { content: ""; position: absolute; width: 26rem; height: 26rem; border-radius: 999px; left: -9rem; bottom: -9rem; border: 2.5rem solid var(--x-side-2); }
.login-art > * { position: relative; z-index: 1; }

.flash { animation: flashIn .35s ease; }
@keyframes flashIn { from { transform: translateY(-6px); } to { transform: none; } }
html.reduced-motion .flash { animation: none; }

dialog.modal { max-width: min(42rem, 94vw); width: 100%; }
.modal-body-wrap { padding: 1.25rem; }
.mono { font-family: var(--font-mono); font-size: .8rem; }
.kv { display: grid; grid-template-columns: 9rem 1fr; gap: .35rem .75rem; font-size: .88rem; }
.kv dt { color: var(--muted); }
.ticket-reply { border-left: 3px solid var(--accent-border); padding: .5rem .8rem; background: var(--surface-2); border-radius: 0 8px 8px 0; }

/* ---------- dashboard KPI cards ---------- */
.kpi-grid { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 560px) { .kpi-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1180px) { .kpi-grid { grid-template-columns: repeat(4, 1fr); } }
.kpi { border-radius: 14px; overflow: hidden; background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow-card); transition: transform .15s ease, box-shadow .15s ease; }
.kpi:hover { transform: translateY(-2px); }
.kpi > a { display: flex; flex-direction: column; height: 100%; color: inherit; }
.kpi > a:focus-visible { outline: 3px solid var(--accent); outline-offset: -3px; }
.kpi-top { position: relative; overflow: hidden; padding: 1.1rem 1.2rem 1rem; color: var(--x-on-photo); min-height: 9.6rem; display: flex; flex-direction: column; gap: .15rem; flex: 1; }
.kpi-ico svg { width: 2rem; height: 2rem; }
.kpi-label { font-size: .98rem; margin-top: .55rem; }
.kpi-num { font: 700 2.15rem/1.15 var(--font-display); letter-spacing: -.01em; }
.kpi-sub { font-size: .78rem; margin-top: .15rem; }
.kpi-trend { font-weight: 700; display: inline-flex; align-items: center; gap: .2rem; }
.kpi-trend svg { width: .95rem; height: .95rem; }
.kpi-mark { position: absolute; right: .9rem; top: 50%; transform: translateY(-50%); opacity: .16; pointer-events: none; }
.kpi-mark svg { width: 5rem; height: 5rem; }
.kpi-foot { display: flex; align-items: center; justify-content: space-between; padding: .8rem 1.2rem; font-size: .86rem; font-weight: 600; color: var(--accent-text); background: var(--surface); }
.kpi-foot svg { width: 1.1rem; height: 1.1rem; }
.kpi-blue .kpi-top { background: linear-gradient(135deg, var(--x-k-blue), var(--x-k-blue-2)); }
.kpi-green .kpi-top { background: linear-gradient(135deg, var(--x-k-green), var(--x-k-green-2)); }
.kpi-red .kpi-top { background: linear-gradient(135deg, var(--x-k-red), var(--x-k-red-2)); }
.kpi-amber .kpi-top { background: linear-gradient(135deg, var(--x-k-amber), var(--x-k-amber-2)); color: var(--x-on-amber); }
.kpi-slate .kpi-top { background: linear-gradient(135deg, var(--x-k-slate), var(--x-k-slate-2)); }
.kpi-cyan .kpi-top { background: linear-gradient(135deg, var(--x-k-cyan), var(--x-k-cyan-2)); }
.kpi-teal .kpi-top { background: linear-gradient(135deg, var(--x-k-teal), var(--x-k-teal-2)); }
.kpi-navy .kpi-top { background: linear-gradient(135deg, var(--x-k-navy), var(--x-k-navy-2)); }
.kpi-dark .kpi-top { background: linear-gradient(135deg, var(--x-k-dark), var(--x-k-dark-2)); }
.kpi-plain .kpi-top { background: var(--surface); color: var(--ink); }
.kpi-plain .kpi-ico { color: var(--accent-text); }
.date-pill { display: inline-flex; align-items: center; gap: .5rem; padding: .35rem .75rem; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); box-shadow: var(--shadow-card); font-weight: 600; }
.date-pill input { border: 0; background: transparent; color: var(--ink); font: inherit; outline: none; }
.date-pill:focus-within { outline: 2px solid var(--accent); }
html.reduced-motion .kpi { transition: none; }
html.reduced-motion .kpi:hover { transform: none; }

/* ---------- printable documents ---------- */
.doc-shell { background: var(--surface-2); min-height: 100vh; padding: 1rem; }
.doc-bar { display: flex; gap: .5rem; align-items: center; justify-content: center; flex-wrap: wrap; padding: .5rem 0 1rem; }
.doc-page { color-scheme: light; background: Canvas; color: CanvasText; margin: 0 auto 1.25rem; box-shadow: var(--shadow-card); font-family: var(--font-body); }
.doc-page * { border-color: color-mix(in srgb, CanvasText 30%, transparent); }
.doc-a4 { width: 210mm; max-width: 100%; min-height: 270mm; padding: 14mm 14mm; font-size: 13px; line-height: 1.5; }
.doc-th { width: 80mm; max-width: 100%; padding: 4mm 3.5mm; font-size: 11.5px; line-height: 1.4; }
.doc-page h1 { font: 800 1.5rem/1.2 var(--font-display); }
.doc-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; border-bottom: 2px solid CanvasText; padding-bottom: .75rem; margin-bottom: 1rem; }
.doc-th .doc-head { flex-direction: column; align-items: center; text-align: center; gap: .3rem; padding-bottom: .4rem; margin-bottom: .5rem; border-bottom-style: dashed; border-bottom-width: 1px; }
.doc-tbl { width: 100%; border-collapse: collapse; }
.doc-tbl td, .doc-tbl th { padding: .35rem .5rem; border-bottom: 1px solid; text-align: left; }
.doc-tbl td:last-child, .doc-tbl th:last-child { text-align: right; }
.doc-th .doc-tbl td, .doc-th .doc-tbl th { padding: .2rem 0; }
.doc-total td { font-weight: 800; font-size: 1.05em; border-top: 2px solid CanvasText; }
.doc-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
.doc-th .doc-meta { grid-template-columns: 1fr; gap: .4rem; margin-bottom: .5rem; }
.doc-sign { margin-top: 2.5rem; display: flex; justify-content: space-between; gap: 1rem; }
.doc-sign div { border-top: 1px solid CanvasText; padding-top: .25rem; min-width: 8rem; text-align: center; font-size: .85em; }
.doc-th .doc-sign { margin-top: 1.2rem; }
.doc-stamp { display: inline-block; border: 2px solid; padding: .1rem .6rem; font-weight: 800; letter-spacing: .08em; transform: rotate(-4deg); }
.doc-logo { max-height: 56px; width: auto; }
.doc-brand .brand-net { color: CanvasText; }
.preview-frame { width: 100%; height: 70vh; border: 1px solid var(--border); border-radius: var(--radius-card); background: var(--surface-2); }

@media print {
  .no-print, .app-side, .app-top, .scrim { display: none !important; }
  html, body { background: Canvas !important; }
  .doc-shell { background: none; padding: 0; min-height: 0; }
  .doc-page { box-shadow: none; margin: 0; page-break-after: always; break-after: page; }
  .doc-page:last-child { page-break-after: auto; break-after: auto; }
  .doc-a4 { width: auto; min-height: 0; padding: 0; }
  .doc-th { width: auto; padding: 0; }
  .app-content { padding: 0; max-width: none; }
}