:root {
  --bg: #ffffff;
  --bg-soft: #f7f8fc;
  --card: #ffffff;
  --line: #e4e7f0;
  --text: #1a1d2e;
  --text-secondary: #5a6178;
  --muted: #8891a8;
  --primary: #5b6df5;
  --primary-strong: #4354e6;
  --primary-soft: rgba(91, 109, 245, 0.08);
  --green: #22c55e;
  --green-soft: rgba(34, 197, 94, 0.08);
  --red: #ef4444;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.04);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--text);
  background: var(--bg-soft);
  -webkit-font-smoothing: antialiased;
}

[hidden] { display: none !important; }

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px 16px;
}

.card {
  width: min(480px, 100%);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: var(--shadow-md);
  padding: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 0.3px;
  font-size: 0.88rem;
}

.brand .dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--primary);
}

h1 { margin: 20px 0 6px; font-size: 1.45rem; font-weight: 800; letter-spacing: -0.01em; }
.lede { margin: 0; color: var(--text-secondary); line-height: 1.5; font-size: 0.92rem; }

.form { margin-top: 20px; display: grid; gap: 14px; }
.form label {
  display: grid;
  gap: 6px;
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--text-secondary);
}
.form input, .form select, .form textarea {
  width: 100%;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 11px 14px;
  font: inherit;
  font-size: 0.92rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.form input:focus, .form select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}

.code-input {
  letter-spacing: 14px;
  text-align: center;
  font-size: 1.4rem;
  font-weight: 700;
}

.btn {
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  display: inline-block;
  text-align: center;
  text-decoration: none;
  color: inherit;
  font: inherit;
  font-size: 0.92rem;
  transition: all 0.15s;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 2px 6px rgba(91,109,245,0.2);
}
.btn-primary:hover {
  background: var(--primary-strong);
  box-shadow: 0 4px 12px rgba(91,109,245,0.3);
}
.btn-secondary {
  border-color: var(--line);
  background: var(--card);
  color: var(--text-secondary);
}
.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-soft);
}
.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--muted);
}
.btn-ghost:hover {
  color: var(--primary);
}
.btn[disabled], .btn.is-disabled {
  opacity: 0.55;
  pointer-events: none;
}

.row { display: flex; flex-wrap: wrap; gap: 10px; }
.row > * { flex: 1 1 auto; }

.message {
  margin-top: 12px;
  min-height: 20px;
  font-size: 0.88rem;
  color: var(--muted);
}
.message.error { color: var(--red); }
.message.success { color: var(--green); }

.helper {
  margin-top: 18px;
  font-size: 0.88rem;
  color: var(--muted);
}
.helper a { color: var(--primary); font-weight: 500; }
.helper a:hover { text-decoration: underline; }

.account {
  margin-top: 16px;
  display: grid;
  gap: 14px;
}
.kpis {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}
.kpi {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px;
  background: var(--bg-soft);
}
.kpi b {
  display: block;
  font-size: 0.7rem;
  color: var(--muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  font-weight: 600;
}
.kpi span { font-size: 0.95rem; color: var(--text); font-weight: 600; }

.section-title {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--muted);
  margin: 6px 0 0;
  font-weight: 600;
}

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  background: var(--bg-soft);
}
.toggle-row p { margin: 0; color: var(--text); font-size: 0.92rem; }
.toggle-row small { color: var(--muted); font-size: 0.82rem; }

.switch-toggle {
  position: relative;
  width: 44px;
  height: 24px;
  background: #d1d5db;
  border-radius: 999px;
  cursor: pointer;
  border: 0;
  flex: 0 0 auto;
  transition: background 0.15s;
}
.switch-toggle::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
  transition: transform 120ms ease;
}
.switch-toggle.on { background: var(--primary); }
.switch-toggle.on::after { transform: translateX(20px); }

.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 4px; }

.top-link {
  display: inline-block;
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.88rem;
}
.top-link:hover { color: var(--primary); }

@media (max-width: 680px) {
  .kpis { grid-template-columns: 1fr; }
  .card { padding: 24px; }
}