:root {
  --bg: #0e1418;
  --bg-2: #141c22;
  --card: #18222a;
  --card-2: #1d2932;
  --border: #26333d;
  --text: #e7eef3;
  --muted: #8fa3b0;
  --green: #25d366;
  --green-dark: #128c4b;
  --blue: #4aa3ff;
  --red: #ef5b5b;
  --amber: #f0b429;
  --radius: 12px;
  --shadow: 0 8px 30px rgba(0, 0, 0, .35);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

h1, h2, h3 { margin: 0; font-weight: 650; }
p { margin: 0; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.hidden { display: none !important; }

/* ---------- topbar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 20px;
  background: linear-gradient(180deg, #16212a, #121a21);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand h1 { font-size: 17px; letter-spacing: .2px; }
.logo {
  width: 40px; height: 40px; flex: 0 0 40px;
  border-radius: 12px;
  background: var(--green);
  color: #06210f;
  display: grid; place-items: center;
  font-weight: 800; font-size: 15px;
}
.topbar-right { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }

.pill {
  padding: 5px 11px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: var(--card-2);
  border: 1px solid var(--border);
  color: var(--muted);
  white-space: nowrap;
}
.pill-ok { background: rgba(37, 211, 102, .14); border-color: rgba(37, 211, 102, .4); color: #6ff0a3; }
.pill-warn { background: rgba(240, 180, 41, .12); border-color: rgba(240, 180, 41, .35); color: #ffd97a; }
.pill-bad { background: rgba(239, 91, 91, .12); border-color: rgba(239, 91, 91, .4); color: #ff9d9d; }
.pill-blue { background: rgba(74, 163, 255, .12); border-color: rgba(74, 163, 255, .4); color: #9ccdff; }

/* ---------- tabs ---------- */
.tabs {
  display: flex;
  gap: 6px;
  padding: 10px 20px 0;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}
.tab-btn {
  appearance: none;
  background: transparent;
  border: 1px solid transparent;
  border-bottom: none;
  color: var(--muted);
  padding: 10px 16px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  border-radius: 10px 10px 0 0;
}
.tab-btn:hover { color: var(--text); background: rgba(255, 255, 255, .03); }
.tab-btn.active {
  color: var(--text);
  background: var(--card);
  border-color: var(--border);
}

/* ---------- layout ---------- */
main { padding: 20px; max-width: 1200px; margin: 0 auto; }
.panel { display: none; }
.panel.active { display: block; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.card-head h2 { font-size: 15px; }

.grid { display: grid; gap: 14px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 820px) { .grid.two { grid-template-columns: 1fr; } }

.field { display: block; }
.field > span { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; }

input, select, textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 9px;
  padding: 10px 12px;
  font: inherit;
  outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--green-dark); box-shadow: 0 0 0 3px rgba(37, 211, 102, .12); }
textarea { min-height: 96px; resize: vertical; }
select { cursor: pointer; }

.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row.actions { margin-top: 16px; }
.row input { flex: 1 1 180px; }

.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--card-2);
  color: var(--text);
  padding: 10px 15px;
  border-radius: 9px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: .15s;
  white-space: nowrap;
}
.btn:hover { border-color: #3a4a56; background: #22303a; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn.primary { background: var(--green); border-color: var(--green); color: #052913; }
.btn.primary:hover { background: #2fe274; border-color: #2fe274; }
.btn.danger { background: rgba(239, 91, 91, .15); border-color: rgba(239, 91, 91, .45); color: #ff9d9d; }
.btn.ghost { background: transparent; }

/* ---------- status / qr ---------- */
.kv { display: grid; gap: 8px; }
.kv .kv-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
}
.kv .kv-row span:first-child { color: var(--muted); }
.kv .kv-row b { font-weight: 600; text-align: right; word-break: break-all; }

.profile {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
  padding: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.profile img { width: 52px; height: 52px; border-radius: 50%; object-fit: cover; background: var(--card-2); }
.profile .avatar-fallback {
  width: 52px; height: 52px; border-radius: 50%;
  background: var(--card-2); display: grid; place-items: center;
  font-weight: 700; color: var(--green);
}

.qr-box {
  background: #fff;
  border-radius: 10px;
  min-height: 240px;
  display: grid;
  place-items: center;
  padding: 14px;
}
.qr-box img { width: 230px; height: 230px; image-rendering: pixelated; }
.qr-box .placeholder { color: #6b7c88; font-size: 13px; }
.pair-box {
  margin-top: 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  text-align: center;
}
.pair-code {
  font-size: 30px;
  letter-spacing: 8px;
  font-weight: 800;
  color: var(--green);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.info {
  margin-top: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--blue);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 13px;
}
.info.ok { border-left-color: var(--green); }
.info.err { border-left-color: var(--red); }

.result {
  margin: 14px 0 0;
  background: #0b1115;
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 12px;
  max-height: 280px;
  overflow: auto;
  font: 12px/1.6 ui-monospace, SFMono-Regular, Menlo, monospace;
  color: #b9cdda;
  white-space: pre-wrap;
  word-break: break-word;
}

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .4px; }
tbody tr:hover { background: rgba(255, 255, 255, .02); }

/* ---------- modal ---------- */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(4, 8, 11, .7);
  backdrop-filter: blur(3px);
  display: grid;
  place-items: center;
  z-index: 50;
  padding: 16px;
}
.modal-box {
  width: min(520px, 100%);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.modal-box .field { margin-bottom: 14px; }

/* ---------- toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  background: var(--card-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 11px 18px;
  border-radius: 10px;
  box-shadow: var(--shadow);
  z-index: 80;
  max-width: min(560px, 92vw);
  font-size: 13px;
}
.toast.ok { border-color: rgba(37, 211, 102, .5); }
.toast.err { border-color: rgba(239, 91, 91, .55); }

@media (max-width: 640px) {
  main { padding: 14px; }
  .topbar { flex-direction: column; align-items: flex-start; }
  .topbar-right { width: 100%; justify-content: flex-start; }
  .row.actions .btn { flex: 1 1 auto; }
}

/* ================= auth gate ================= */
body.preauth .topbar,
body.preauth .tabs,
body.preauth main { display: none; }

.login-screen {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: radial-gradient(circle at top, #16222b, var(--bg) 62%);
  z-index: 60;
  overflow: auto;
}
body:not(.preauth) .login-screen { display: none; }

.login-card {
  width: min(380px, 100%);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 14px;
  text-align: center;
  align-content: start;
}
.login-card .field { text-align: left; }
.login-card .logo { margin: 0 auto; width: 52px; height: 52px; font-size: 18px; }
.login-card h1 { font-size: 18px; }
.btn.block { width: 100%; justify-content: center; }
.login-card .info { text-align: left; }

/* ================= packages ================= */
.pkg-group { margin-top: 18px; }
.pkg-group:first-child { margin-top: 0; }
.pkg-group h3 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
  margin-bottom: 8px;
}
.pkg-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.pkg-item .pkg-name { font-weight: 600; }
.pkg-meta { color: var(--muted); font-size: 12px; }
.price-chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip {
  background: rgba(74, 163, 255, .1);
  border: 1px solid rgba(74, 163, 255, .3);
  color: #9ccdff;
  border-radius: 999px;
  padding: 2px 9px;
  font-size: 12px;
}
.chip.dim { background: rgba(255, 255, 255, .05); border-color: var(--border); color: var(--muted); }

/* ================= misc ================= */
.radio { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; }
.modal-box.wide { width: min(900px, 96vw); }
#packages-list .empty { color: var(--muted); }
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, .04);
  color: var(--muted);
}
.badge.ok { color: #6ff0a3; border-color: rgba(37, 211, 102, .4); background: rgba(37, 211, 102, .12); }
.badge.warn { color: #ffd97a; border-color: rgba(240, 180, 41, .4); background: rgba(240, 180, 41, .12); }
.badge.bad { color: #ff9d9d; border-color: rgba(239, 91, 91, .4); background: rgba(239, 91, 91, .12); }
.badge.info { color: #9ccdff; border-color: rgba(74, 163, 255, .4); background: rgba(74, 163, 255, .12); }