.solver-main { max-width: 720px; margin: 0 auto; padding: clamp(2rem, 5vw, 3.5rem) max(1rem, 4vw) 4rem; }
.solver-main h1 { font-size: clamp(1.9rem, 4vw, 2.8rem); margin-bottom: 0.6rem; }
.solver-sub { color: var(--ink-soft); margin-bottom: 1.6rem; }
.solver-form { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-bottom: 0.5rem; }
.solver-input {
  flex: 1 1 220px; font: inherit; font-size: 1.35rem; letter-spacing: 0.35em; text-transform: uppercase;
  padding: 0.65rem 0.9rem; border: 1px solid var(--rule-strong); border-radius: var(--radius-md);
  background: var(--surface); color: var(--ink); min-width: 0;
}
.solver-input:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.solver-btn {
  font: inherit; font-weight: 600; padding: 0.65rem 1.4rem; border: 0; border-radius: var(--radius-md);
  background: var(--ink); color: var(--bg); cursor: pointer;
}
.solver-btn:hover { background: color-mix(in srgb, var(--ink) 88%, var(--accent)); }
.solver-hint { color: var(--mute); font-size: 0.9rem; margin-bottom: 2rem; }
.solver-results h2 { font-size: 1.15rem; margin: 1.6rem 0 0.6rem; font-style: normal; font-family: var(--font-sans); font-weight: 600; }
.solver-count { color: var(--mute); font-weight: 400; }
.word-list { display: flex; flex-wrap: wrap; gap: 0.45rem; padding: 0; margin: 0; list-style: none; }
.word-list li {
  background: var(--surface); border: 1px solid var(--rule); border-radius: 8px;
  padding: 0.25rem 0.65rem; font-size: 0.98rem; letter-spacing: 0.04em;
}
.word-list li.all-letters { border-color: var(--accent); background: var(--accent-soft); font-weight: 600; }
.solver-empty { color: var(--mute); margin-top: 1.5rem; }
.solver-fields { display: grid; grid-template-columns: 1fr auto; gap: 0.6rem; width: 100%; }
.solver-field { min-width: 0; }
.solver-fields .solver-input { width: 100%; }
.solver-fields .solver-centre { width: 4.2rem; }
@media (max-width: 480px) { .solver-input { letter-spacing: 0.18em; font-size: 1.2rem; } }
.solver-field label { display: block; font-size: 0.82rem; color: var(--mute); margin-bottom: 0.25rem; font-weight: 500; }
.solver-centre { width: 4.2rem; text-align: center; letter-spacing: 0; padding-left: 0.4rem; padding-right: 0.4rem; }
.solver-options { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 1.2rem; margin: 0.8rem 0 0.4rem; font-size: 0.92rem; color: var(--ink-soft); }
.solver-min { display: inline-flex; gap: 0.3rem; align-items: center; }
.solver-min button {
  font: inherit; min-width: 2.6rem; min-height: 2.4rem; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--rule-strong); background: var(--surface); color: var(--ink);
}
.solver-min button[aria-pressed="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.solver-check { display: inline-flex; gap: 0.45rem; align-items: center; min-height: 2.4rem; cursor: pointer; }
.solver-check input { width: 1.1rem; height: 1.1rem; accent-color: var(--accent); }
.solver-answer {
  background: var(--accent-soft); border: 1px solid var(--accent); border-radius: var(--radius-md);
  padding: 0.8rem 1rem; margin: 1.4rem 0 1rem; color: var(--ink); font-size: 1.05rem;
}
.solver-answer strong { letter-spacing: 0.06em; }
.solver-miss { color: var(--mute); font-size: 0.9rem; }
.word-list li sup { color: var(--accent-text); font-size: 0.7em; margin-left: 1px; }
.solver-steps { padding-left: 1.2rem; margin: 0 0 1rem; }
.solver-steps li { margin-bottom: 0.45rem; color: var(--ink-soft); }
.solver-faq details { border-top: 1px solid var(--rule); padding: 0.75rem 0; }
.solver-faq summary { cursor: pointer; font-weight: 600; color: var(--ink); }
.solver-faq details p { margin: 0.5rem 0 0; }
.solver-about { margin-top: 3rem; border-top: 1px solid var(--rule); padding-top: 1.8rem; }
.solver-about h2 { font-size: 1.3rem; margin-bottom: 0.5rem; }
.solver-about p { margin: 0 0 0.8rem; }