:root {
  --bg: var(--tg-theme-bg-color, #17212b);
  --secondary-bg: var(--tg-theme-secondary-bg-color, #1e2a38);
  --text: var(--tg-theme-text-color, #ffffff);
  --hint: var(--tg-theme-hint-color, #7d8b99);
  --button: var(--tg-theme-button-color, #f5a623);
  --button-text: var(--tg-theme-button-text-color, #1a1a1a);
  --card: rgba(255, 255, 255, 0.06);
  --danger: #ff6b6b;
  --success: #4cd964;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding-bottom: 72px; /* room for tab bar */
}

.loading,
.error { text-align: center; margin-top: 40vh; }

.container {
  max-width: 480px;
  margin: 0 auto;
  padding: 16px 16px 24px;
}

/* top bar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.brand { font-size: 20px; font-weight: 700; }
.balance-pill {
  background: var(--card);
  border-radius: 999px;
  padding: 8px 14px;
  font-weight: 700;
  color: var(--button);
}
.balance-pill span { color: var(--hint); font-weight: 500; font-size: 12px; }

/* hero / earn */
.hero {
  background: var(--card);
  border-radius: 18px;
  padding: 24px 16px;
  text-align: center;
  margin-bottom: 16px;
}
.hero-sub { color: var(--hint); margin: 0 0 16px; }

.btn-primary {
  width: 100%;
  border: none;
  border-radius: 14px;
  padding: 16px;
  font-size: 17px;
  font-weight: 700;
  background: var(--button);
  color: var(--button-text);
  cursor: pointer;
  transition: transform 0.06s ease, opacity 0.2s;
}
.btn-primary:active { transform: scale(0.98); }
.btn-primary:disabled { opacity: 0.6; cursor: default; }

.hint { color: var(--hint); font-size: 13px; margin: 10px 0 0; }

/* stats */
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.stat {
  background: var(--card);
  border-radius: 14px;
  padding: 16px;
  text-align: center;
}
.stat-n { font-size: 22px; font-weight: 800; }
.stat-l { color: var(--hint); font-size: 12px; margin-top: 4px; }

/* generic card */
.card {
  background: var(--card);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 16px;
}
.card.error p:first-child { color: var(--danger); }

/* tab bar */
.tabbar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  display: flex;
  background: var(--secondary-bg);
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 6px 0 calc(6px + env(safe-area-inset-bottom));
}
.tabbar button {
  flex: 1;
  background: none;
  border: none;
  color: var(--hint);
  font-size: 22px;
  padding: 4px 0;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.tabbar button span { font-size: 11px; }
.tabbar button.active { color: var(--button); }

/* forms */
.field-label {
  display: block;
  color: var(--hint);
  font-size: 12px;
  margin: 14px 0 6px;
}
.input {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.2);
  color: var(--text);
  border-radius: 10px;
  padding: 12px;
  font-size: 15px;
}
.input:focus { outline: none; border-color: var(--button); }

.btn-secondary {
  border: none;
  border-radius: 10px;
  padding: 0 16px;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
  cursor: pointer;
}

.copy-row {
  display: flex;
  gap: 8px;
  align-items: stretch;
}
.copy-row .input { font-size: 12px; }

/* withdrawals */
.wd-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.wd-row:last-child { border-bottom: none; }
.wd-row .hint { word-break: break-all; }

.badge {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: 999px;
  white-space: nowrap;
}
.badge-pending { background: rgba(245, 166, 35, 0.2); color: #f5a623; }
.badge-sent { background: rgba(76, 217, 100, 0.2); color: var(--success); }
.badge-rejected { background: rgba(255, 107, 107, 0.2); color: var(--danger); }

/* toast */
.toast {

  position: fixed;
  left: 50%;
  bottom: 90px;
  transform: translateX(-50%) translateY(20px);
  background: rgba(0,0,0,0.85);
  color: #fff;
  padding: 12px 18px;
  border-radius: 12px;
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 1000;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }