:root {
  --bg: #f4f6f8;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --border: #dde2e8;
  --text: #111827;
  --muted: #5f6b7a;
  --primary: #1f2937;
  --primary-strong: #0f172a;
  --success: #16a34a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Manrope", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

.site-shell {
  min-height: 100vh;
}

.topbar {
  height: 64px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  position: sticky;
  top: 0;
}

.brand {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
}

.topnav {
  display: flex;
  gap: 8px;
}

.topnav a {
  text-decoration: none;
  color: var(--muted);
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-weight: 600;
}

.topnav a:hover {
  color: var(--text);
  background: var(--surface-soft);
  border-color: var(--border);
}

.topnav a.active {
  color: var(--text);
  background: var(--surface-soft);
  border-color: var(--border);
}

.profile-pill {
  border: 1px solid var(--border);
  background: var(--surface-soft);
  padding: 7px 10px;
  font-size: 0.9rem;
  color: var(--muted);
}

.page-wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 24px 20px 30px;
}

h1 {
  margin: 8px 0 10px;
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  line-height: 1.15;
}

.cta-row {
  margin-top: 18px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  font: inherit;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  padding: 9px 14px;
  border-radius: 4px;
  text-decoration: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--primary-strong);
  border-color: var(--primary-strong);
}

.btn-secondary:hover {
  background: var(--surface-soft);
}

.queue-layout {
  margin-top: 14px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.chip {
  border: 1px solid var(--border);
  background: var(--surface-soft);
  color: var(--text);
  border-radius: 4px;
  padding: 7px 11px;
  font: inherit;
  cursor: pointer;
}

.chip.active,
.chip:hover {
  border-color: #b7c0cb;
  background: #eef2f6;
}

.friend-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.friend-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
}

.friend-list li:first-child {
  border-top: 0;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 4px;
  background: var(--success);
}

@media (max-width: 900px) {
  .panel-grid {
    grid-template-columns: 1fr;
  }

  .queue-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .topbar {
    height: auto;
    flex-wrap: wrap;
    gap: 8px;
    padding: 10px 14px;
  }

  .topnav {
    width: 100%;
    order: 3;
  }

  .topnav a {
    flex: 1;
    text-align: center;
  }

  .page-wrap {
    padding: 16px 14px 24px;
  }

  .hero,
  .stack-head,
  .panel {
    padding: 14px;
  }
}