#gk-app * { box-sizing: border-box; }
#gk-app {
  max-width: 420px;
  margin: 0 auto;
  background: #000;
  color: #f5f5f5;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid #262626;
}
#gk-app .gk-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid #262626;
}
#gk-app .gk-header img { width: 40px; height: 40px; object-fit: contain; }
#gk-app .gk-eyebrow { font-size: 10px; letter-spacing: .3em; text-transform: uppercase; color: #f2b90c; font-weight: 600; margin: 0; }
#gk-app .gk-title { font-size: 18px; font-weight: 900; text-transform: uppercase; letter-spacing: -0.02em; margin: 2px 0 0; color: #f2b90c; }
#gk-app .gk-logout { margin-left: auto; background: none; border: none; color: #a3a3a3; font-size: 13px; cursor: pointer; }
#gk-app .gk-logout:hover { color: #f2b90c; }
#gk-app .gk-main { padding: 28px 20px; }
#gk-app .gk-hero-logo { width: 96px; height: 96px; object-fit: contain; display: block; margin: 0 auto 12px; }
#gk-app .gk-center { text-align: center; margin-bottom: 20px; }
#gk-app .gk-muted { color: #a3a3a3; font-size: 14px; }
#gk-app label { display: block; font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: #737373; margin-bottom: 4px; }
#gk-app input {
  width: 100%;
  background: #171717;
  border: 1px solid #262626;
  color: #f5f5f5;
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 15px;
  margin-bottom: 14px;
}
#gk-app input:focus { outline: none; border-color: #f2b90c; }
#gk-app input.gk-pin { letter-spacing: .35em; }
#gk-app button.gk-primary {
  width: 100%;
  background: #f2b90c;
  color: #000;
  font-weight: 700;
  border: none;
  border-radius: 10px;
  padding: 12px;
  font-size: 15px;
  cursor: pointer;
}
#gk-app button.gk-primary:hover { background: #ffce33; }
#gk-app button.gk-link {
  width: 100%;
  background: none;
  border: none;
  color: #f2b90c;
  font-weight: 600;
  font-size: 14px;
  padding: 10px;
  cursor: pointer;
}
#gk-app button.gk-link.gk-subtle { color: #525252; font-size: 12px; }
#gk-app .gk-error { color: #f87171; font-size: 13px; margin: -6px 0 12px; }
#gk-app .gk-success { color: #4ade80; font-size: 13px; margin: -6px 0 12px; }
#gk-app .gk-balance-card {
  background: #0a0a0a;
  border: 1px solid rgba(242,185,12,.3);
  border-radius: 16px;
  padding: 26px 20px;
  text-align: center;
  margin-bottom: 24px;
}
#gk-app .gk-balance-label { font-size: 10px; text-transform: uppercase; letter-spacing: .3em; color: #737373; margin: 0 0 8px; }
#gk-app .gk-balance-amount {
  font-family: "SF Mono", "Courier New", monospace;
  font-size: 44px;
  font-weight: 700;
  color: #f2b90c;
  text-shadow: 0 0 24px rgba(242,185,12,.45);
  margin: 0;
}
#gk-app .gk-section-label { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: #737373; margin: 0 0 12px; }
#gk-app .gk-drink-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 28px; }
#gk-app .gk-drink-btn {
  background: #171717;
  border: 1px solid rgba(242, 185, 12, 0.4);
  border-radius: 12px;
  padding: 18px 14px;
  text-align: left;
  cursor: pointer;
  color: #f5f5f5;
}
#gk-app .gk-drink-btn:hover { background: #1f1f1f; border-color: rgba(242, 185, 12, 0.75); }
#gk-app .gk-drink-btn .gk-drink-name { font-weight: 600; font-size: 14px; display: block; margin-top: 8px; }
#gk-app .gk-drink-btn .gk-drink-price { color: #737373; font-size: 12px; }
#gk-app ul.gk-list { list-style: none; padding: 0; margin: 0; }
#gk-app ul.gk-list li {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 14px; padding: 9px 0; border-bottom: 1px solid #171717;
}
#gk-app .gk-toast {
  position: fixed; top: 16px; left: 50%; transform: translateX(-50%);
  background: #f2b90c; color: #000; font-weight: 600; font-size: 13px;
  padding: 8px 18px; border-radius: 999px; z-index: 9999;
}
#gk-app .gk-member-row {
  display: flex; align-items: center; justify-content: space-between;
  background: #0a0a0a; border: 1px solid #262626; border-radius: 10px;
  padding: 10px 12px; margin-bottom: 8px;
}
#gk-app .gk-pill-btn {
  background: #262626; color: #d4d4d4; border: none; border-radius: 8px;
  font-size: 12px; padding: 6px 10px; cursor: pointer;
}
#gk-app .gk-pill-btn:hover { background: #14532d; }
#gk-app .gk-pill-btn:disabled { opacity: .3; cursor: default; }
#gk-app .gk-row-inline { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
#gk-app .gk-row-inline input { margin-bottom: 0; }
#gk-app .gk-row-fit { display: flex; gap: 8px; flex-wrap: nowrap; align-items: center; }
#gk-app .gk-row-fit input,
#gk-app .gk-row-fit select { width: auto; flex: 1 1 0; min-width: 0; margin-bottom: 0; }
#gk-app .gk-row-fit button { flex: 0 0 auto; white-space: nowrap; }
#gk-app .gk-icon-btn { background: none; border: none; color: #525252; cursor: pointer; font-size: 16px; }
#gk-app .gk-icon-btn:hover { color: #f87171; }