:root {
  color-scheme: dark;
  --bg: #10140f;
  --card: #1a2118;
  --card-2: #232b20;
  --line: rgba(226, 255, 87, 0.16);
  --text: #f6f3ea;
  --muted: #b7b1a1;
  --accent: #e2ff57;
  --ink: #17200a;
  --danger: #ff6a45;
  --ok: #8dffc1;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
  font-family: "Segoe UI", "Arial Hebrew", Tahoma, sans-serif;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(900px 420px at 100% -10%, rgba(226, 255, 87, 0.16), transparent 60%),
    var(--bg);
  color: var(--text);
}

button, input { font: inherit; }

button {
  border: 0;
  border-radius: 999px;
  padding: 0.75rem 1.1rem;
  background: var(--accent);
  color: var(--ink);
  font-weight: 700;
  cursor: pointer;
}

button:disabled { opacity: 0.55; cursor: wait; }

button.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}

button.danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid rgba(255, 106, 69, 0.5);
}

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

.card {
  background: rgba(26, 33, 24, 0.92);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.login-card { width: min(440px, 100%); }

.eyebrow {
  margin: 0;
  color: var(--accent);
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  font-weight: 700;
}

h1, h2, h3 { margin: 0.2rem 0 0.6rem; font-weight: 750; }
h1 { font-size: 1.8rem; }
h2 { font-size: 1.2rem; }
h3 { margin-top: 1.2rem; font-size: 1rem; }

.lede, .fine, .hint { color: var(--muted); line-height: 1.5; }
.fine { font-size: 0.88rem; }
.error { color: var(--danger); min-height: 1.2em; margin: 0.4rem 0; }
.error:empty { display: none; }

label { display: grid; gap: 0.35rem; margin: 0.8rem 0; color: var(--muted); font-size: 0.92rem; }

input {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #12170f;
  color: var(--text);
  padding: 0.75rem 0.85rem;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: end;
  padding: 1.4rem 1.4rem 0.4rem;
}

.top-actions { display: flex; gap: 0.7rem; align-items: center; }
.who { color: var(--muted); }

.layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1rem;
  padding: 1rem 1.4rem 0.4rem;
}

.tools-card { grid-column: 1 / -1; }

.card-head, .actions, .tools, .pair-form {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  flex-wrap: wrap;
}

.card-head { justify-content: space-between; }
.actions, .pair-form { margin-top: 0.8rem; }
.pair-form { align-items: end; }
.pair-form label { flex: 1; min-width: 220px; margin: 0; }

.pill {
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
  background: var(--card-2);
  color: var(--muted);
  font-size: 0.85rem;
}

.pill.on { color: var(--ink); background: var(--ok); }
.pill.wait { color: var(--ink); background: var(--accent); }

.account-name { font-size: 1.3rem; margin-bottom: 0.2rem; }
.account-number { font-size: 1.1rem; letter-spacing: 0.03em; margin-top: 0; }

.qr-box, .code-box {
  margin-top: 0.6rem;
  background: var(--card-2);
  border-radius: 18px;
  padding: 0.9rem;
  text-align: center;
}

.qr-box img {
  width: min(280px, 100%);
  background: white;
  border-radius: 12px;
  padding: 0.6rem;
}

#pair-code {
  font-size: 2rem;
  letter-spacing: 0.18em;
  font-weight: 800;
  margin: 0.2rem 0 0.6rem;
}

.demo { display: grid; gap: 0.45rem; margin: 0.8rem 0; }
.bubble {
  max-width: 80%;
  padding: 0.55rem 0.75rem;
  border-radius: 14px;
  line-height: 1.45;
}
.bubble.in { background: #2b3424; }
.bubble.out { background: #31401a; margin-inline-start: auto; }
.bubble.file { font-weight: 700; }

.activity { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.45rem; }
.activity li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.55rem;
  padding: 0.55rem 0.2rem;
  border-top: 1px solid var(--line);
}
.activity time { color: var(--muted); font-size: 0.85rem; }
.activity .ok { color: var(--ok); }
.activity .err { color: var(--danger); }
.empty { color: var(--muted); }

.tools { list-style: none; padding: 0; margin: 0 0 0.8rem; }
.dot {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  display: inline-block;
  background: var(--danger);
}
.dot.on { background: var(--ok); }

details { margin-top: 0.4rem; }
summary { cursor: pointer; color: var(--muted); }
.stack { max-width: 420px; }

.footer-note {
  color: var(--muted);
  font-size: 0.82rem;
  padding: 0.2rem 1.5rem 1.4rem;
}

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; padding-inline: 0.8rem; }
  .topbar { padding-inline: 0.8rem; align-items: start; }
  .tools-card { grid-column: auto; }
}