:root {
  --bg: #080d16;
  --panel: #101827;
  --line: #27344a;
  --text: #edf3ff;
  --muted: #94a2b8;
  --blue: #7898ff;
  --green: #36d6a0;
  --red: #ff7180;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background: radial-gradient(ellipse at top, #172541, var(--bg) 60%);
  font-family: Inter, system-ui, Arial, sans-serif;
}

.topbar {
  max-width: 1100px;
  margin: auto;
  padding: 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #263247;
}

.brand {
  color: white;
  font-size: 25px;
  font-weight: 850;
  text-decoration: none;
  letter-spacing: -1px;
}

.brand span { color: var(--blue); }

.status, .count {
  border: 1px solid var(--line);
  padding: 7px 12px;
  border-radius: 30px;
  color: var(--muted);
  font-size: 12px;
}

.status i {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 6px;
  border-radius: 50%;
  background: var(--green);
}

main {
  width: min(100% - 28px, 1000px);
  margin: 45px auto;
}

.login-card, .panel {
  border: 1px solid var(--line);
  background: rgba(16, 24, 39, .96);
  border-radius: 18px;
  padding: 24px;
  margin-bottom: 20px;
}

.login-card {
  max-width: 430px;
  margin: 7vh auto;
}

.brand-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 13px;
  background: linear-gradient(135deg, #82a5ff, #6265ef);
  font-size: 23px;
  font-weight: 800;
}

h1 { font-size: clamp(28px, 5vw, 38px); margin: 10px 0; }
h2 { font-size: 18px; margin: 0 0 20px; }
p { line-height: 1.6; }
.muted { color: var(--muted); }
.eyebrow { color: #a8baff; font-size: 12px; letter-spacing: 1.4px; }
label { display: block; margin-bottom: 8px; color: #b9c6da; font-size: 12px; font-weight: 700; }

input, select {
  width: 100%;
  min-width: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  background: #0a111e;
  font: inherit;
}

input:focus, select:focus {
  outline: 1px solid var(--blue);
  border-color: var(--blue);
}

.field { margin-bottom: 16px; }

button {
  padding: 12px 16px;
  border: 0;
  border-radius: 10px;
  cursor: pointer;
  font: inherit;
  font-weight: 750;
}

.primary {
  color: white;
  background: linear-gradient(135deg, #7da1ff, #6265ef);
}

.full { width: 100%; margin-top: 14px; }
.secondary { color: var(--text); background: #182338; border: 1px solid var(--line); }

.page-heading, .feed-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.page-heading h1 { margin-bottom: 5px; }
.page-heading p { margin-top: 5px; }

.event-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 16px;
}

.event-form button, .event-form .message { align-self: start; }
.events-list { display: grid; gap: 12px; }

.event {
  background: #0b1422;
  border: 1px solid var(--line);
  border-radius: 13px;
  padding: 17px;
}

.event-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.event-pair { font-size: 20px; font-weight: 800; }
.event-name { color: var(--muted); font-size: 13px; margin-top: 4px; }

.side {
  padding: 6px 9px;
  border-radius: 7px;
  font-size: 12px;
  font-weight: 800;
}

.buy { color: var(--green); background: #123b31; }
.sell { color: var(--red); background: #421f2b; }

.event-meta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 12px;
  color: var(--muted);
  font-size: 12px;
}

.message, .error { font-size: 13px; }
.error { color: var(--red); }
.message { color: var(--muted); }
.hidden { display: none !important; }

.empty {
  padding: 28px;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: 12px;
}

footer {
  text-align: center;
  padding: 20px;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 600px) {
  main { margin-top: 25px; }
  .event-form { grid-template-columns: 1fr; }
  .login-card, .panel { padding: 18px; }
}