:root {
  --bg: #0f0f10;
  --panel: #17171a;
  --text: #ffffff;
  --muted: #b9b9c0;
  --accent: #ff8a00;
  --radius: 14px;
}

* { box-sizing: border-box; }

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

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 18px;
  background: #000;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.brand {
  font-weight: 900;
  letter-spacing: 0.3px;
}

.nav {
  display: flex;
  gap: 14px;
  margin-left: auto;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
}

.nav a.active,
.nav a:hover {
  color: var(--text);
}

.main {
  padding: 16px;
}

.card {
  background: var(--panel);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
}

.loginCard {
  margin-bottom: 16px;
}

.formRow {
  display: grid;
  gap: 10px;
  margin-bottom: 10px;
}

.input {
  background: #0f0f12;
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
}

.btn {
  background: var(--accent);
  color: #000;
  border: 0;
  border-radius: 10px;
  padding: 10px 14px;
  font-weight: 700;
  cursor: pointer;
}

.btnSecondary {
  background: rgba(255,255,255,0.08);
  color: var(--text);
}

.loginStatus {
  color: var(--muted);
  font-size: 13px;
  margin-top: 8px;
}

.divider {
  height: 1px;
  background: rgba(255,255,255,0.08);
  margin: 12px 0;
}

.iframeWrap {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
}

.appFrame {
  width: 100%;
  height: calc(100vh - 86px);
  border: 0;
  background: var(--bg);
}

.pageTitle {
  margin: 0 0 8px;
  font-size: 22px;
}

.pageSub {
  margin: 0 0 18px;
  color: var(--muted);
}

.settingRow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.settingRow:last-child {
  border-bottom: none;
}

.badge {
  background: rgba(255,138,0,0.15);
  color: var(--accent);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
}