:root {
    --bg: #f4f6f5;
    --panel: #ffffff;
    --text: #1b2420;
    --muted: #66736d;
    --line: #e1e6e3;
    --accent: #128c4a;
    --accent-ink: #ffffff;
    --accent-soft: #e3f4ea;
    --danger: #c0392b;
    --danger-soft: #fbe9e7;
    --warn: #a86b00;
    --warn-soft: #fff4dc;
    --info: #2160a8;
    --info-soft: #e5effa;
    --c-wa: #1baf7a;
    --c-sms: #2a78d6;
    --c-one: #64748b;
    --radius: 10px;
    --shadow: 0 1px 2px rgba(0, 0, 0, .05), 0 1px 8px rgba(0, 0, 0, .04);
    color-scheme: light;
}
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #111614;
        --panel: #1a211e;
        --text: #e5ebe8;
        --muted: #93a19a;
        --line: #2b3531;
        --accent: #25b866;
        --accent-ink: #06210f;
        --accent-soft: #173826;
        --danger: #ef6f60;
        --danger-soft: #3a1f1c;
        --warn: #e0a83a;
        --warn-soft: #3a2f14;
        --info: #6aa8ef;
        --info-soft: #182b42;
        --c-wa: #199e70;
        --c-sms: #3987e5;
        --c-one: #8d9bb0;
        --shadow: none;
        color-scheme: dark;
    }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
    background: var(--bg);
    color: var(--text);
    font: 14px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 16px; margin: 0 0 12px; }
p { margin: 0 0 10px; }
code, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12.5px; }
.boot { padding: 40px; color: var(--muted); }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.right { text-align: right; }
.nowrap { white-space: nowrap; }
.hidden { display: none !important; }

/* layout */
.shell { display: grid; grid-template-columns: 232px 1fr; min-height: 100vh; }
.side {
    background: var(--panel);
    border-right: 1px solid var(--line);
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
}
.side-top { display: flex; align-items: center; gap: 8px; padding: 18px 16px 10px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 16px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand img { width: 28px; height: 28px; }
.sb-chip { display: none; }
.drawer { flex: 1; display: flex; flex-direction: column; min-height: 0; padding: 0 12px 12px; }
.navs { flex: 1; overflow-y: auto; margin: 0 -4px; padding: 0 4px; }
.side a.nav {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 10px;
    border-radius: 8px;
    color: var(--text);
    font-size: 14.5px;
}
.side a.nav .ico { color: var(--muted); flex: 0 0 auto; }
.side a.nav:hover { background: var(--bg); text-decoration: none; }
.side a.nav.on { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.side a.nav.on .ico { color: var(--accent); }
.side .group { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); padding: 14px 10px 4px; }
.side .who { display: flex; align-items: center; gap: 10px; margin-top: 8px; padding: 12px 4px 0; border-top: 1px solid var(--line); font-size: 12.5px; color: var(--muted); }
.side .who > .ico { flex: 0 0 auto; }
.who-text { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.who-text b, .who-text span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.side .who b { color: var(--text); }
.backdrop { display: none; }
.ico { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.ico .knob { fill: var(--panel); }
.icon-btn { display: inline-flex; align-items: center; justify-content: center; padding: 6px; border-radius: 8px; background: transparent; border: 1px solid transparent; color: var(--muted); }
.icon-btn:hover { background: var(--bg); color: var(--text); }
.main { padding: 24px 28px 60px; min-width: 0; max-width: 1200px; }
.head { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.banner {
    background: var(--warn-soft);
    color: var(--warn);
    border-radius: var(--radius);
    padding: 10px 14px;
    margin-bottom: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}

/* panels */
.card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 18px;
    margin-bottom: 16px;
}
.grid { display: grid; gap: 16px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-bottom: 16px; }
.grid > .card { margin-bottom: 0; }
.grid.stats { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); margin-bottom: 16px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); }
.stat .n { font-size: 26px; font-weight: 700; line-height: 1.2; }
.stat .l { color: var(--muted); font-size: 12.5px; }
.stat.bad .n { color: var(--danger); }

/* forms */
label { display: block; font-weight: 600; font-size: 13px; margin: 0 0 4px; }
.field { margin-bottom: 12px; }
.field .hint { color: var(--muted); font-size: 12px; margin-top: 3px; }
input, select, textarea {
    width: 100%;
    font: inherit;
    color: var(--text);
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 8px 10px;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }
input[type=checkbox] { width: auto; margin: 0; }
textarea { min-height: 110px; resize: vertical; }
.row { display: flex; gap: 10px; align-items: flex-start; flex-wrap: wrap; }
.row > .field { flex: 1 1 140px; }
.row > .field.act { flex: 0 0 auto; padding-top: 25px; }
.checks { display: flex; flex-wrap: wrap; gap: 6px 16px; }
.checks label { font-weight: 400; display: flex; gap: 6px; align-items: center; margin: 0; }

button, .btn {
    font: inherit;
    font-weight: 600;
    border: 1px solid var(--line);
    background: var(--panel);
    color: var(--text);
    padding: 7px 14px;
    border-radius: 8px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}
button:hover { border-color: var(--muted); }
button.primary, .btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
button.danger { color: var(--danger); }
button.danger.solid { background: var(--danger); border-color: var(--danger); color: #fff; }
button.link { border: 0; background: none; color: var(--accent); padding: 0; font-weight: 500; }
button:disabled { opacity: .55; cursor: default; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

/* tables */
.table-wrap { overflow-x: auto; margin: 0 -18px; padding: 0 18px; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
tr:last-child td { border-bottom: 0; }
td.text { max-width: 360px; overflow-wrap: anywhere; }
tr.click { cursor: pointer; }
tr.click:hover td { background: var(--bg); }
.empty { color: var(--muted); padding: 24px 0; text-align: center; }

/* chips */
.chip { display: inline-block; font-size: 12px; font-weight: 600; padding: 2px 9px; border-radius: 999px; background: var(--bg); color: var(--muted); white-space: nowrap; }
.chip.green { background: var(--accent-soft); color: var(--accent); }
.chip.red { background: var(--danger-soft); color: var(--danger); }
.chip.amber { background: var(--warn-soft); color: var(--warn); }
.chip.blue { background: var(--info-soft); color: var(--info); }

/* notices */
.notice { border-radius: 8px; padding: 10px 12px; margin-bottom: 12px; background: var(--info-soft); color: var(--info); }
.notice.warn { background: var(--warn-soft); color: var(--warn); }
.notice.bad { background: var(--danger-soft); color: var(--danger); }
.notice.good { background: var(--accent-soft); color: var(--accent); }
.notice.pre { white-space: pre-line; }
h2.spaced { margin-top: 18px; }
.secret { display: flex; gap: 8px; align-items: center; background: var(--bg); border: 1px dashed var(--line); padding: 10px 12px; border-radius: 8px; overflow-wrap: anywhere; }
.secret code { flex: 1; }

/* QR */
.qr { text-align: center; }
.qr img { width: 264px; height: 264px; border-radius: 8px; background: #fff; padding: 6px; border: 1px solid var(--line); }
.steps { padding-left: 20px; margin: 8px 0 14px; }
.steps li { margin-bottom: 4px; }

/* chart */

/* toast */
.toast {
    position: fixed;
    right: 18px;
    bottom: 18px;
    background: var(--text);
    color: var(--panel);
    padding: 10px 16px;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, .2);
    z-index: 10;
    max-width: calc(100vw - 36px);
}
.toast.bad { background: var(--danger); color: #fff; }

/* login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login .card { width: 100%; max-width: 360px; padding: 26px; }
.login .brand { padding: 0 0 18px; justify-content: center; font-size: 18px; }

/* mobile */
.menu-btn { display: none; background: transparent; border: 1px solid var(--line); border-radius: 8px; color: var(--text); }
@media (max-width: 1100px) {
    .main { padding: 22px 22px 60px; }
    .grid.two { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 820px) {
    .shell { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto 1fr; }
    .side { height: auto; z-index: 30; border-right: 0; border-bottom: 1px solid var(--line); }
    .side-top { padding: 10px 12px 10px 16px; }
    .brand { margin-right: auto; }
    .sb-chip { display: inline-block; }
    .menu-btn { display: inline-flex; align-items: center; justify-content: center; padding: 7px; }
    .menu-btn .ico { width: 22px; height: 22px; }
    .drawer {
        position: fixed; top: 0; bottom: 0; left: 0; width: min(300px, 86vw); z-index: 32;
        background: var(--panel); padding: 16px 12px 16px; visibility: hidden;
        transform: translateX(-102%); transition: transform .2s ease, visibility .2s;
    }
    .side.open .drawer { transform: none; visibility: visible; box-shadow: 4px 0 24px rgba(0, 0, 0, .18); }
    .backdrop { position: fixed; inset: 0; background: rgba(0, 0, 0, .35); z-index: 31; }
    .side.open .backdrop { display: block; }
    .main { padding: 18px 16px 50px; }
    .grid.two { grid-template-columns: minmax(0, 1fr); }
    .grid.stats { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
    .stat { padding: 12px 14px; }
    .stat .n { font-size: 22px; }
    .head h1 { font-size: 22px; }
    .head > .actions, .head > a.btn, .head > button { width: 100%; }
    .row > .field { flex: 1 1 140px; min-width: 0; }
}
@media (prefers-reduced-motion: reduce) { .drawer { transition: none; } }

/* phones: table rows as cards, each cell labelled with its column */
@media (max-width: 640px) {
    .table-wrap { overflow: visible; }
    table.cardable, table.cardable tbody, table.cardable tr, table.cardable td { display: block; width: 100%; }
    table.cardable thead { display: none; }
    table.cardable tr { border: 1px solid var(--line); border-radius: 10px; padding: 6px 12px; margin-bottom: 10px; background: var(--panel); }
    table.cardable tr:hover td { background: transparent; }
    table.cardable td { border: 0; padding: 5px 0; text-align: right; overflow-wrap: anywhere; }
    table.cardable td::after { content: ''; display: table; clear: both; }
    table.cardable td::before { content: attr(data-label); float: left; margin-right: 14px; max-width: 45%; text-align: left; color: var(--muted); font-size: 11.5px; font-weight: 600; text-transform: uppercase; letter-spacing: .03em; line-height: 1.9; }
    table.cardable td[data-label=""]::before { display: none; }
    table.cardable td[data-label=""] { text-align: left; }
    table.cardable td.text { text-align: left; }
    table.cardable td.text::before { float: none; display: block; max-width: none; line-height: 1.5; margin-bottom: 2px; }
    table.cardable td.empty, table.cardable td[colspan] { text-align: center; }
    table.cardable td.empty::before, table.cardable td[colspan]::before { display: none; }
}

/* campaigns, USSD */
.progress { display: flex; height: 10px; border-radius: 999px; overflow: hidden; background: var(--bg); border: 1px solid var(--line); }
.progress i { display: block; height: 100%; }
.ussd { white-space: pre-wrap; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13px; margin-top: 6px; }
.pre { white-space: pre-wrap; }
input[type=radio] { width: auto; margin: 0; }
.w-progress { min-width: 140px; }
.w-time { width: 80px; }
.bad-text { color: var(--danger); }
.spaced { margin-top: 14px; }

/* multi-select dropdown */
.ms { position: relative; }
.ms-btn { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 8px; text-align: left; font-weight: 400; min-height: 40px; background: var(--panel); }
.ms-summary { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; min-width: 0; }
.ms-chip { background: var(--accent-soft); color: var(--accent); border-radius: 999px; padding: 1px 9px; font-size: 12.5px; font-weight: 600; white-space: nowrap; }
.ms-caret { color: var(--muted); font-size: 12px; }
.ms-panel { position: absolute; z-index: 20; left: 0; right: 0; top: calc(100% + 4px); background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 8px 24px rgba(0, 0, 0, .14); padding: 8px; }
.ms-search { margin-bottom: 6px; }
.ms-tools { display: flex; gap: 14px; padding: 2px 6px 6px; border-bottom: 1px solid var(--line); margin-bottom: 4px; }
.ms-list { max-height: 260px; overflow-y: auto; }
.ms-opt { display: flex; align-items: center; gap: 8px; font-weight: 400; margin: 0; padding: 7px 6px; border-radius: 6px; cursor: pointer; }
.ms-opt:hover { background: var(--bg); }
.ms-opt.on { background: var(--accent-soft); }
.ms-opt .muted { margin-left: auto; }
.ms-empty { padding: 8px 6px; }
.mode .choice { display: flex; gap: 8px; align-items: flex-start; font-weight: 400; margin: 6px 0 0; }
.mode .choice input { margin-top: 3px; }
.hint.bad-text { color: var(--danger); }

/* plans */
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.plan.current { border-color: var(--accent); }
.plan h2 { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.price { font-size: 20px; font-weight: 700; margin: 4px 0 8px; }
.plan-list { list-style: none; padding: 0; margin: 8px 0 0; }
.plan-list li { padding: 3px 0; }
.plan-list li.off { color: var(--muted); text-decoration: line-through; }
.usage { margin-bottom: 12px; }
.usage-head { display: flex; justify-content: space-between; font-size: 13.5px; margin-bottom: 4px; }
input.tiny { width: 70px; display: inline-block; }
.plan-banner { margin-bottom: 16px; }

/* live / sandbox */
.mode-switch { display: flex; gap: 0; margin: 4px 0 14px; border: 1px solid var(--line); border-radius: 999px; padding: 3px; background: var(--bg); }
.mode-switch button { flex: 1; border: 0; background: transparent; border-radius: 999px; padding: 5px 10px; font-weight: 600; color: var(--muted); }
.mode-switch button.on { background: var(--accent); color: var(--accent-ink); }
.mode-switch button.on.sb { background: var(--warn); color: #fff; }
.sandbox-banner { background: var(--warn-soft); color: var(--warn); margin-bottom: 16px; }
.in-sandbox .side { border-right: 3px solid var(--warn); }

/* billing */
.buy { margin-top: 12px; border-top: 1px solid var(--line); padding-top: 12px; }
.buy .row { flex-wrap: wrap; gap: 8px; }
.buy .row .field { flex: 1 1 110px; min-width: 110px; }
.buy .row .field.act button { width: 100%; white-space: nowrap; }
.buy .row > .field.act { padding-top: 0; flex: 1 1 auto; }
.buy .row > .field { margin-bottom: 0; }
.quote { margin-top: 8px; display: grid; gap: 4px; }
.invoice { position: relative; overflow: hidden; }
.inv-head { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; margin-bottom: 18px; }
.inv-biz { font-size: 20px; font-weight: 700; }
.inv-title { font-size: 26px; font-weight: 800; letter-spacing: 0.08em; color: var(--accent); }
.inv-meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-bottom: 16px; }
.inv-lines { width: 100%; }
.inv-lines tfoot td { border-bottom: 0; }
.inv-lines tr.total td { font-weight: 800; font-size: 17px; border-top: 2px solid var(--text); }
.paid-stamp { position: absolute; right: 30px; top: 120px; transform: rotate(-14deg); border: 4px solid var(--accent); color: var(--accent); font-weight: 900; font-size: 30px; padding: 2px 16px; border-radius: 8px; opacity: 0.55; }
.methods { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 12px; }
.method { border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; }
.method-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.method-head img { height: 32px; max-width: 90px; object-fit: contain; }
.method-edit { display: flex; gap: 16px; border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.method-logo { width: 130px; display: flex; flex-direction: column; gap: 6px; align-items: flex-start; }
.method-logo img { width: 100px; height: 60px; object-fit: contain; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
.method-fields { flex: 1; min-width: 240px; }
label.inline { display: flex; gap: 6px; align-items: center; font-weight: 400; }
img.proof { max-width: 100%; max-height: 520px; border: 1px solid var(--line); border-radius: 8px; display: block; }
@media print {
    .side, .banner, .plan-banner, .sandbox-banner, .no-print, .head .actions, .toast { display: none !important; }
    .shell { display: block; }
    .main { padding: 0; }
    body { background: #fff; }
    .card { box-shadow: none; border: 0; }
    .head h1 { display: none; }
}

/* ---------------------------------------------------------------- charts */
.s-wa { background: var(--c-wa); }
.s-sms { background: var(--c-sms); }
.s-fail { background: var(--danger); }
.s-one { background: var(--c-one); }
.stat .delta { display: block; margin-top: 2px; font-size: 12px; color: var(--muted); }
.stat .delta.up { color: var(--accent); }
.stat .delta.down { color: var(--danger); }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: var(--panel); }
.seg button { border: 0; border-radius: 0; background: none; padding: 6px 12px; color: var(--muted); font: inherit; cursor: pointer; }
.seg button + button { border-left: 1px solid var(--line); }
.seg button.on { background: var(--accent-soft); color: var(--text); font-weight: 600; }
.chart-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 8px; }
.legend { display: flex; flex-wrap: wrap; gap: 4px 14px; font-size: 12.5px; color: var(--muted); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.sw { display: inline-block; width: 10px; height: 10px; border-radius: 3px; flex: none; }
.tip .sw { margin-right: 6px; vertical-align: -1px; }
.plot { position: relative; height: 190px; margin: 10px 0 0 38px; }
.grid-line { position: absolute; left: 0; right: 0; border-top: 1px dashed var(--line); }
.grid-line.base { border-top-style: solid; }
.grid-line span { position: absolute; right: calc(100% + 6px); top: -8px; font-size: 10.5px; color: var(--muted); white-space: nowrap; }
.cols { position: absolute; inset: 0 0 0 0; display: flex; align-items: stretch; gap: 2px; }
.col { flex: 1 1 0; min-width: 0; position: relative; display: flex; flex-direction: column; justify-content: flex-end; outline: none; cursor: default; }
.col .stack { flex: 1; display: flex; flex-direction: column-reverse; align-items: center; gap: 2px; padding-bottom: 0; margin-bottom: 20px; }
.col .stack i { display: block; width: 70%; max-width: 28px; min-height: 2px; }
.col .stack i:last-child { border-radius: 4px 4px 0 0; }
.cols.dense .col .stack i { width: 100%; }
.cols.dense .col .stack { gap: 1px; }
.col.on, .col:focus-visible { background: color-mix(in srgb, var(--text) 6%, transparent); border-radius: 4px; }
.col .x { position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); font-size: 10.5px; color: var(--muted); white-space: nowrap; }
.col .x.hide { display: none; }
.tip { position: absolute; top: 0; transform: translateX(-50%); z-index: 5; pointer-events: none; background: var(--panel); border: 1px solid var(--line); border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, .12); padding: 8px 10px; font-size: 12.5px; min-width: 130px; white-space: nowrap; }
.tip > b { display: block; margin-bottom: 2px; }
.barlist { display: grid; gap: 12px; }
.bl-head { display: flex; justify-content: space-between; gap: 10px; font-size: 13.5px; }
.bl-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
.bl-track { height: 8px; border-radius: 999px; background: var(--bg); margin-top: 4px; overflow: hidden; }
.bl-track i { display: block; height: 100%; border-radius: 999px; }
@media (max-width: 720px) {
    .plot { height: 160px; }
    .col .stack i { width: 100%; }
    .head .seg { width: 100%; }
    .head .seg button { flex: 1; }
}

.block { display: block; }
.month-usage { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); font-size: 13px; }