/*
 * smstest.au — one stylesheet, no framework, no external fonts.
 * Deliberately plain: a visual pass comes with the real results page.
 * Mobile first; the only breakpoint widens the column on larger screens.
 */

:root {
  --ink: #0f172a;
  --ink-soft: #475569;
  --line: #e2e8f0;
  --bg: #f8fafc;
  --card: #ffffff;
  --accent: #1d4ed8;
  --accent-ink: #ffffff;
  --warn-bg: #fef3c7;
  --warn-ink: #78350f;
  --danger: #b91c1c;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
}

.wrap {
  max-width: 40rem;
  margin: 0 auto;
  padding: 1.75rem 1.25rem 0;
}

@media (min-width: 40rem) {
  .wrap { padding: 3rem 2rem 0; }
}

.brandline {
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 1.5rem;
}
.brandline a { color: inherit; text-decoration: none; }

h1 {
  font-size: 1.85rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}

@media (min-width: 40rem) {
  h1 { font-size: 2.35rem; }
}

h2 {
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  margin: 0 0 0.6rem;
}

p { margin: 0 0 1rem; }

.lede { font-size: 1.05rem; color: var(--ink-soft); }

.explainer { margin: 2.25rem 0; }

.steps { margin: 0 0 1rem; padding-left: 1.25rem; }
.steps li { margin-bottom: 0.4rem; }

.modes { list-style: none; margin: 0; padding: 0; }
.modes li {
  border-left: 3px solid var(--line);
  padding: 0 0 0 1rem;
  margin: 0 0 1.25rem;
  color: var(--ink-soft);
}
.modename { display: block; color: var(--ink); font-weight: 600; }

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  padding: 1.5rem 1.25rem;
  margin: 2.5rem 0;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  padding: 1.25rem;
  margin: 0 0 1.25rem;
}

.field { margin: 1.25rem 0; }
.field label { display: block; font-weight: 600; margin-bottom: 0.4rem; font-size: 0.95rem; }

textarea {
  width: 100%;
  font: inherit;
  font-size: 1rem;
  padding: 0.7rem;
  border: 1px solid #cbd5e1;
  border-radius: 0.5rem;
  background: #fff;
  color: inherit;
  resize: vertical;
}
textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.modepick { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.radio {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  cursor: pointer;
}
.radio input { margin: 0; }

.btn {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-ink);
  border: 0;
  border-radius: 0.5rem;
  font: inherit;
  font-weight: 600;
  padding: 0.7rem 1.25rem;
  cursor: pointer;
  text-decoration: none;
}
.btn:disabled { opacity: 0.55; cursor: default; }
.btn.secondary { background: #fff; color: var(--accent); border: 1px solid var(--accent); }

.hint { font-size: 0.875rem; color: var(--ink-soft); margin: 0.5rem 0 0; }
.fineprint { font-size: 0.85rem; color: var(--ink-soft); }

.error { color: var(--danger); font-weight: 600; margin-top: 0.75rem; }

.notice {
  background: var(--warn-bg);
  color: var(--warn-ink);
  border-radius: 0.5rem;
  padding: 0.75rem 0.9rem;
  font-size: 0.95rem;
}

.tokenbox {
  border: 1px dashed #cbd5e1;
  border-radius: 0.5rem;
  padding: 1rem;
  margin: 1.25rem 0;
  text-align: center;
}
.token {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 1.6rem;
  letter-spacing: 0.06em;
  margin: 0.25rem 0;
}

.label {
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 0.35rem;
}

.status { font-weight: 600; }

.number { font-weight: 600; }
.nowrap { white-space: nowrap; }

.code, .mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.95em;
}
.code {
  background: #eef2ff;
  border-radius: 0.25rem;
  padding: 0.05em 0.35em;
}

.facts { margin: 0 0 1rem; }
.facts dt {
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.facts dd { margin: 0 0 0.75rem; }

.sms {
  white-space: pre-wrap;
  word-break: break-word;
  font-family: inherit;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 0.9rem;
  margin: 0;
}

.site-footer {
  max-width: 40rem;
  margin: 3rem auto 0;
  padding: 1.5rem 1.25rem 2.5rem;
  border-top: 1px solid var(--line);
  font-size: 0.875rem;
  color: var(--ink-soft);
}

a { color: var(--accent); }