:root {
  --bg: #f4f6f8;
  --panel: #ffffff;
  --text: #16202a;
  --muted: #637282;
  --line: #e2e7ec;
  --brand: #0f9d58;
  --brand-ink: #ffffff;
  --brand-soft: #e3f5ec;
  --side: #10231a;
  --side-text: #c9dbd1;
  --side-active: #1c3a2b;
  --ok: #0f9d58;
  --warn: #c77700;
  --warn-soft: #fff4e0;
  --err: #d93025;
  --err-soft: #fdeceb;
  --info: #1a73e8;
  --info-soft: #e8f0fe;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 35, 26, .06), 0 1px 3px rgba(16, 35, 26, .08);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1512;
    --panel: #16201b;
    --text: #e4ece7;
    --muted: #93a39a;
    --line: #26332c;
    --brand: #27b872;
    --brand-ink: #06140d;
    --brand-soft: #173628;
    --side: #0a100d;
    --side-text: #a9bdb2;
    --side-active: #17271f;
    --warn-soft: #3a2a0c;
    --err-soft: #3b1614;
    --info-soft: #14243d;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font: 14px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}
a { color: var(--brand); }
code, .mono { font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace; font-size: 13px; }

/* ---------- Layout ---------- */
.layout { display: flex; min-height: 100vh; }
.side {
  width: 230px; flex: none; background: var(--side); color: var(--side-text);
  display: flex; flex-direction: column; padding: 18px 12px;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 4px 8px 22px; color: #fff; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 9px; background: var(--brand); color: var(--brand-ink);
  display: grid; place-items: center; font-weight: 800; font-size: 13px; letter-spacing: -.5px;
}
.brand b { display: block; font-size: 15px; line-height: 1.1; }
.brand small { color: var(--side-text); font-size: 11px; }
.nav a {
  display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 8px;
  color: var(--side-text); text-decoration: none; margin-bottom: 2px;
}
.nav a:hover { background: var(--side-active); color: #fff; }
.nav a.active { background: var(--side-active); color: #fff; font-weight: 600; }
.nav svg { width: 18px; height: 18px; flex: none; }
.side .spacer { flex: 1; }

.main { flex: 1; min-width: 0; padding: 26px 30px 40px; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 20px; }
.topbar h1 { font-size: 21px; margin: 0; }
.menu-btn { display: none; }

.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px 20px;
}
.card h2 { font-size: 15px; margin: 0 0 14px; }
.card h2 small { font-weight: 400; color: var(--muted); }

/* ---------- Device info ---------- */
.kv { display: grid; grid-template-columns: 130px minmax(0, 1fr); row-gap: 14px; column-gap: 12px; align-items: center; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; min-width: 0; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.kv dd .mono { overflow-wrap: anywhere; }

.badge {
  display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 99px;
  font-size: 12px; font-weight: 600; text-transform: lowercase;
}
.badge::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.b-online, .b-sent { background: var(--brand-soft); color: var(--ok); }
.b-paused, .b-pending, .b-sending, .b-qr, .b-connecting { background: var(--warn-soft); color: var(--warn); }
.b-offline, .b-logged_out, .b-error { background: var(--err-soft); color: var(--err); }

.btn {
  display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line); background: var(--panel);
  color: var(--text); padding: 7px 13px; border-radius: 8px; font: inherit; font-weight: 500; cursor: pointer;
}
.btn:hover { border-color: var(--muted); }
.btn:disabled { opacity: .5; cursor: default; }
.btn-sm { padding: 3px 9px; font-size: 12px; }
.btn-primary { background: var(--brand); border-color: var(--brand); color: var(--brand-ink); }
.btn-primary:hover { filter: brightness(1.05); border-color: var(--brand); }
.btn-danger { color: var(--err); }
.btn-danger:hover { border-color: var(--err); }
.btns { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.stat { border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; background: var(--panel); }
.stat span { display: block; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .4px; }
.stat b { display: block; font-size: 26px; font-variant-numeric: tabular-nums; margin-top: 4px; }
.stat.error b { color: var(--err); }
.stat.sent b { color: var(--ok); }
.stat.pending b { color: var(--warn); }

/* ---------- QR ---------- */
.qr-box { text-align: center; }
.qr-box img { width: 260px; max-width: 100%; border-radius: 8px; background: #fff; padding: 8px; }
.qr-box ol { text-align: left; color: var(--muted); padding-left: 20px; margin: 14px 0 0; }
.connected { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 22px 0; text-align: center; }
.connected .dot { width: 56px; height: 56px; border-radius: 50%; background: var(--brand-soft); color: var(--ok); display: grid; place-items: center; }
.muted { color: var(--muted); }

/* ---------- Form ---------- */
label { display: block; font-weight: 500; margin: 0 0 5px; }
input, textarea, select {
  width: 100%; font: inherit; color: var(--text); background: var(--panel);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 11px;
}
input:focus, textarea:focus, select:focus { outline: 2px solid var(--brand); outline-offset: -1px; border-color: transparent; }
.field { margin-bottom: 12px; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.row > * { flex: 1 1 160px; }

/* ---------- Tabel ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: .4px; }
td.msg { max-width: 360px; overflow-wrap: anywhere; }
td .err { color: var(--err); font-size: 12px; margin-top: 3px; }
.pager { display: flex; align-items: center; justify-content: flex-end; gap: 10px; margin-top: 12px; }

pre {
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px;
  overflow-x: auto; margin: 8px 0 16px;
}
.docs h3 { font-size: 14px; margin: 20px 0 6px; }
.docs h3:first-child { margin-top: 0; }

.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%) translateY(20px); opacity: 0;
  background: var(--text); color: var(--bg); padding: 9px 16px; border-radius: 8px; transition: .2s;
  pointer-events: none; z-index: 20;
}
.toast.show { opacity: 1; transform: translateX(-50%); }
[hidden] { display: none !important; }

/* ---------- Login ---------- */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login { width: 100%; max-width: 380px; }
.login .brand { color: var(--text); justify-content: center; padding-bottom: 18px; }
.login .brand small { color: var(--muted); }
.alert { background: var(--err-soft); color: var(--err); padding: 9px 12px; border-radius: 8px; margin-bottom: 12px; }

/* ---------- Responsif ---------- */
@media (max-width: 1100px) {
  .grid-2 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .side { position: fixed; inset: 0 auto 0 0; z-index: 10; transform: translateX(-100%); transition: .2s; }
  .side.open { transform: none; box-shadow: 0 0 0 100vmax rgba(0, 0, 0, .4); }
  .main { padding: 16px; }
  .menu-btn { display: inline-flex; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kv { grid-template-columns: 1fr; row-gap: 4px; }
  .kv dd { margin-bottom: 10px; }
}