.page {
  max-width: 560px;
  margin: 0 auto;
  padding: 48px 20px 80px;
  font-family: 'JetBrains Mono', 'Courier New', monospace;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 24px;
  backdrop-filter: blur(10px);
}

.filetag { font-size: 13px; font-weight: 500; color: var(--cyan); margin-bottom: 10px; }

h1 { font-size: 26px; font-weight: 700; margin: 0 0 14px; color: var(--text); }
h2 { font-size: 19px; font-weight: 600; margin: 0 0 10px; color: var(--text); }

.intro { font-size: 15px; font-weight: 400; color: var(--text-dim); line-height: 1.55; margin: 0 0 22px; }

.form { display: flex; flex-direction: column; gap: 16px; }

.field { display: flex; flex-direction: column; gap: 6px; }
.field span { font-size: 12.5px; color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.4px; }

.field input {
  font-family: inherit;
  font-size: 16px;
  color: var(--text);
  background: var(--panel-solid);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  outline: none;
}
.field input:focus { border-color: var(--cyan); }
.field input::placeholder { color: var(--text-faint); }

.btn-primary {
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  color: #0A0E1A;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  background-clip: padding-box;
  border: none;
  border-radius: 100px;
  padding: 14px 18px;
  cursor: pointer;
  margin-top: 4px;
}
[data-theme="light"] .btn-primary { color: #FFFFFF; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.email-status { font-size: 13px; color: var(--good); margin-top: 14px; }

.result { margin-top: 24px; padding-top: 22px; border-top: 1px solid var(--border); }
.result-label { font-size: 12.5px; color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.4px; }
.result-value { font-size: 44px; font-weight: 700; color: var(--good); margin-top: 6px; font-variant-numeric: tabular-nums; }
.result-sub { font-size: 13px; color: var(--text-dim); margin-top: 8px; line-height: 1.5; }

.divider { height: 1px; background: var(--border); margin: 26px 0 22px; }

.gate .intro { margin-bottom: 18px; }

.dev-note { font-size: 11.5px; color: var(--text-faint); margin-top: 12px; font-style: italic; }
.dev-note:empty { display: none; }

.chart-section { margin-top: 24px; padding-top: 22px; border-top: 1px solid var(--border); }
.chart-section canvas { margin-top: 16px; max-width: 100%; }

.formula-box { margin-top: 16px; padding: 14px 16px; background: var(--panel-solid); border: 1px solid var(--border); border-radius: 8px; }
.formula { font-size: 14px; font-weight: 600; color: var(--cyan); }
.formula-note { font-size: 13px; color: var(--text-dim); margin-top: 8px; line-height: 1.5; }

.disclaimer { font-size: 12px; color: var(--text-faint); margin: 26px 0 0; line-height: 1.5; }

@media (max-width: 480px) {
  .page { padding: 32px 16px 60px; }
  .card { padding: 22px 16px; }
  h1 { font-size: 22px; }
  .result-value { font-size: 36px; }
}