.silson-page {
  --silson-ink: #162238;
  --silson-muted: #65758a;
  --silson-line: #d5e0e6;
  --silson-soft: #f5f8f8;
  --silson-green: #087f72;
  --silson-green-dark: #06675e;
  --silson-green-soft: #e8f6f2;
  --silson-coral: #b6483d;
  --silson-coral-soft: #fff2ef;
  color: var(--silson-ink);
}

.silson-page * { box-sizing: border-box; }
.silson-page [hidden] { display: none !important; }

.silson-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 176px;
  gap: 28px;
  align-items: center;
  margin-bottom: 22px;
}

.silson-heading h1 {
  margin: 4px 0 14px;
  color: var(--silson-ink);
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.18;
  letter-spacing: 0;
}

.silson-heading > div > p:not(.silson-eyebrow) {
  margin: 0;
  color: #53657c;
  font-size: 1.06rem;
  line-height: 1.8;
}

.silson-heading img {
  display: block;
  width: 176px;
  height: 176px;
  object-fit: cover;
  border: 1px solid var(--silson-line);
  border-radius: 7px;
}

.silson-heading nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-top: 16px;
}

.silson-heading nav a {
  color: var(--silson-green-dark);
  font-size: .91rem;
  font-weight: 750;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.silson-eyebrow {
  margin: 0 0 7px;
  color: var(--silson-green-dark);
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: 0;
}

.silson-reference {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 24px;
  padding: 15px 17px;
  border: 1px solid #edcfc9;
  border-left: 4px solid var(--silson-coral);
  border-radius: 6px;
  background: var(--silson-coral-soft);
  color: #6d4942;
  line-height: 1.55;
}

.silson-reference strong { flex: 0 0 auto; color: #65362e; }

.silson-tool {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin-bottom: 34px;
  padding: 24px;
  border: 1px solid var(--silson-line);
  border-radius: 8px;
  background: #fff;
}

.silson-tool.has-result {
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, .85fr);
  align-items: start;
}

.silson-panel-heading {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-start;
}

.silson-panel-heading h2,
.silson-data h2,
.silson-guide h2,
.silson-faq h2,
.silson-sources h2,
.silson-related h2 {
  margin: 0;
  color: var(--silson-ink);
  font-size: 1.62rem;
  line-height: 1.35;
  letter-spacing: 0;
}

.silson-panel-heading > span {
  padding: 5px 9px;
  border-radius: 4px;
  background: var(--silson-green-soft);
  color: var(--silson-green-dark);
  font-size: .77rem;
  font-weight: 750;
  white-space: nowrap;
}

#silsonForm { min-width: 0; }

.silson-group {
  min-width: 0;
  margin: 0 0 20px;
  padding: 18px;
  border: 1px solid var(--silson-line);
  border-radius: 7px;
  background: #fff;
}

.silson-group legend {
  padding: 0 7px;
  color: #20324a;
  font-size: 1rem;
  font-weight: 800;
}

.silson-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px;
  margin-bottom: 17px;
  padding: 4px;
  border-radius: 7px;
  background: #edf2f4;
}

.silson-tabs button {
  min-height: 46px;
  padding: 9px 10px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: #54657a;
  font: inherit;
  font-weight: 750;
  cursor: pointer;
}

.silson-tabs button.is-active {
  background: #fff;
  color: var(--silson-green-dark);
  box-shadow: 0 1px 4px rgba(15, 34, 50, .14);
}

.silson-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 17px 15px;
}

.silson-field {
  display: block;
  min-width: 0;
  margin: 0;
}

.silson-field.silson-wide { grid-column: 1 / -1; }

.silson-field > span:first-child,
.silson-field > label:first-child {
  display: block;
  margin-bottom: 8px;
  color: #203149;
  font-size: .93rem;
  font-weight: 750;
}

.silson-field input,
.silson-field select {
  width: 100%;
  min-width: 0;
  height: 52px;
  padding: 0 14px;
  border: 1px solid #cbd8e0;
  border-radius: 7px;
  background: #fff;
  color: var(--silson-ink);
  font: inherit;
  font-size: 1rem;
  font-weight: 650;
}

.silson-field input:disabled {
  background: #edf2f3;
  color: #5c6c7e;
}

.silson-field input:focus,
.silson-field select:focus {
  border-color: var(--silson-green);
  box-shadow: 0 0 0 3px rgba(8, 127, 114, .13);
  outline: none;
}

.silson-field small {
  display: block;
  margin-top: 7px;
  color: var(--silson-muted);
  font-size: .79rem;
  line-height: 1.5;
}

.silson-unit { position: relative; }
.silson-unit input { padding-right: 53px; }
.silson-unit b {
  position: absolute;
  top: 50%;
  right: 14px;
  color: #6b7c90;
  font-size: .87rem;
  font-weight: 750;
  transform: translateY(-50%);
  pointer-events: none;
}

.silson-check {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin: 15px 0 0;
  color: var(--silson-ink);
  cursor: pointer;
}

.silson-check input {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  margin: 2px 0 0;
  accent-color: var(--silson-green);
}

.silson-check span,
.silson-check small { display: block; }
.silson-check small { margin-top: 3px; color: var(--silson-muted); line-height: 1.45; }

.silson-generation {
  display: block;
  margin-top: 15px;
  padding: 11px 13px;
  border-left: 4px solid var(--silson-green);
  border-radius: 5px;
  background: var(--silson-green-soft);
  color: var(--silson-green-dark);
  font-size: 1.04rem;
  font-weight: 800;
}

.silson-help {
  margin: 9px 0 0;
  color: var(--silson-muted);
  font-size: .82rem;
  line-height: 1.55;
}

.silson-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.silson-quick button {
  min-height: 44px;
  padding: 7px 10px;
  border: 1px solid #cad7df;
  border-radius: 6px;
  background: #fff;
  color: #405369;
  font: inherit;
  font-size: .79rem;
  font-weight: 700;
  cursor: pointer;
}

.silson-quick button:hover,
.silson-quick button:focus-visible {
  border-color: var(--silson-green);
  color: var(--silson-green-dark);
}

.silson-alert {
  margin: 14px 0 0;
  padding: 12px 13px;
  border: 1px solid #edcfc9;
  border-radius: 6px;
  background: var(--silson-coral-soft);
  color: #833e34;
  font-size: .83rem;
  font-weight: 650;
  line-height: 1.55;
}

.silson-advanced {
  margin-bottom: 20px;
  padding: 0 16px;
  border: 1px solid var(--silson-line);
  border-radius: 7px;
  background: var(--silson-soft);
}

.silson-advanced summary {
  padding: 15px 0;
  color: #24364c;
  font-weight: 750;
  cursor: pointer;
}

.silson-advanced[open] { padding-bottom: 17px; }
.silson-advanced > p { margin: 0 0 14px; color: var(--silson-muted); font-size: .82rem; }

.silson-actions,
.silson-result-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 112px;
  gap: 10px;
}

.silson-actions button,
.silson-result-actions button {
  min-height: 50px;
  padding: 10px 16px;
  border: 1px solid var(--silson-green);
  border-radius: 7px;
  background: var(--silson-green);
  color: #fff;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.silson-actions button:hover,
.silson-result-actions button:hover { background: var(--silson-green-dark); }
.silson-actions .secondary,
.silson-result-actions button:last-child { border-color: #c7d3dc; background: #fff; color: #34475f; }

.silson-status {
  min-height: 1.5em;
  margin: 10px 0 0;
  color: var(--silson-coral);
  font-size: .85rem;
  font-weight: 700;
}

.silson-status[data-type="success"] { color: var(--silson-green-dark); }
.silson-status[data-type="warning"] { color: #9a5b16; }

.silson-result {
  min-width: 0;
  padding: 20px;
  border: 1px solid #acd6cf;
  border-top: 5px solid var(--silson-green);
  border-radius: 7px;
  background: #fbfefd;
}

.silson-result > p { margin: 12px 0 3px; color: var(--silson-muted); font-size: .8rem; }
.silson-result > h2 { margin: 0; color: var(--silson-ink); font-size: 1.08rem; letter-spacing: 0; }
.silson-result > output {
  display: block;
  margin: 7px 0 15px;
  overflow-wrap: anywhere;
  color: var(--silson-green-dark);
  font-size: clamp(2rem, 5vw, 3.15rem);
  font-weight: 850;
  line-height: 1.1;
}

.silson-badge {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  padding: 4px 9px;
  border-radius: 4px;
  background: var(--silson-green-soft);
  color: var(--silson-green-dark);
  font-size: .78rem;
  font-weight: 800;
}

.silson-result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.silson-result-grid > div {
  min-height: 72px;
  padding: 10px;
  border: 1px solid var(--silson-line);
  border-radius: 6px;
  background: #fff;
}

.silson-result-grid span,
.silson-result-grid strong { display: block; }
.silson-result-grid span { margin-bottom: 5px; color: var(--silson-muted); font-size: .75rem; }
.silson-result-grid strong { overflow-wrap: anywhere; color: var(--silson-ink); font-size: 1rem; }

.silson-warnings {
  margin: 14px 0;
  padding: 13px 13px 13px 31px;
  border-radius: 6px;
  background: #fff8e9;
  color: #6f562d;
  font-size: .78rem;
  line-height: 1.55;
}

.silson-result-actions { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }

.silson-data,
.silson-guide,
.silson-faq,
.silson-sources,
.silson-related {
  margin-top: 34px;
  padding-top: 30px;
  border-top: 1px solid var(--silson-line);
}

.silson-data p,
.silson-guide p,
.silson-faq p,
.silson-sources p,
.silson-related p { color: #596b81; line-height: 1.75; }

.silson-guide h3 {
  margin: 25px 0 8px;
  color: var(--silson-ink);
  font-size: 1.1rem;
  letter-spacing: 0;
}

.silson-table {
  overflow-x: auto;
  margin-top: 16px;
  border: 1px solid var(--silson-line);
  border-radius: 7px;
  background: #fff;
  -webkit-overflow-scrolling: touch;
}

.silson-table table {
  width: 100%;
  min-width: 650px;
  margin: 0;
  border-collapse: collapse;
}

.silson-table th,
.silson-table td {
  padding: 12px 13px;
  border-bottom: 1px solid #e4eaee;
  color: #43566d;
  font-size: .84rem;
  text-align: right;
  vertical-align: top;
}

.silson-table th { background: var(--silson-soft); color: #263950; font-weight: 800; }
.silson-table th:first-child,
.silson-table td:first-child { text-align: left; }
.silson-table tbody tr:last-child td,
.silson-table tbody tr:last-child th { border-bottom: 0; }

.silson-process {
  margin-top: 14px;
  padding: 0 15px;
  border: 1px solid var(--silson-line);
  border-radius: 7px;
  background: var(--silson-soft);
}

.silson-process summary { padding: 14px 0; color: #24364c; font-weight: 750; cursor: pointer; }
.silson-process article { padding: 4px 0 15px; border-top: 1px solid #dde5e9; }
.silson-process h3 { margin: 12px 0 4px; font-size: .96rem; }
.silson-process p { margin: 0; font-size: .82rem; }
.silson-process small { display: block; margin-top: 5px; color: var(--silson-muted); line-height: 1.5; }

.silson-formulas,
.silson-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 18px 0;
}

.silson-formulas > div,
.silson-columns article {
  min-height: 128px;
  padding: 16px;
  border: 1px solid var(--silson-line);
  border-radius: 7px;
  background: var(--silson-soft);
}

.silson-formulas strong,
.silson-formulas span { display: block; }
.silson-formulas strong,
.silson-columns h3 { margin: 0 0 8px; color: var(--silson-ink); font-size: 1rem; }
.silson-formulas span,
.silson-columns p { margin: 0; color: #5d6e82; font-size: .86rem; line-height: 1.65; }

.silson-faq details { border-bottom: 1px solid var(--silson-line); }
.silson-faq summary { padding: 16px 4px; color: var(--silson-ink); font-weight: 750; cursor: pointer; }
.silson-faq details p { margin: 0; padding: 0 4px 17px; }

.silson-sources ul { margin: 16px 0 10px; padding-left: 21px; }
.silson-sources li { margin: 8px 0; }
.silson-sources a { color: var(--silson-green-dark); text-underline-offset: 3px; }

.silson-related > div {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.silson-related a {
  display: flex;
  min-width: 0;
  min-height: 110px;
  flex-direction: column;
  justify-content: center;
  padding: 16px;
  border: 1px solid var(--silson-line);
  border-radius: 7px;
  background: #fff;
  text-decoration: none;
}

.silson-related a:hover,
.silson-related a:focus-visible { border-color: #83beb5; background: #fbfefd; }
.silson-related strong,
.silson-related span { display: block; overflow-wrap: anywhere; }
.silson-related strong { color: var(--silson-ink); font-size: 1rem; }
.silson-related span { margin-top: 7px; color: var(--silson-muted); font-size: .81rem; line-height: 1.5; }

@media screen and (max-width: 980px) {
  .silson-tool.has-result { grid-template-columns: minmax(0, 1fr); }
  .silson-formulas,
  .silson-columns { grid-template-columns: minmax(0, 1fr); }
  .silson-formulas > div,
  .silson-columns article { min-height: 0; }
}

@media screen and (max-width: 620px) {
  .silson-heading { grid-template-columns: minmax(0, 1fr) 92px; gap: 14px; }
  .silson-heading img { width: 92px; height: 92px; }
  .silson-heading h1 { font-size: 2rem; }
  .silson-heading > div > p:not(.silson-eyebrow) { font-size: .96rem; }
  .silson-reference { flex-direction: column; gap: 5px; }
  .silson-tool { padding: 17px 14px; }
  .silson-panel-heading { align-items: center; }
  .silson-panel-heading h2,
  .silson-data h2,
  .silson-guide h2,
  .silson-faq h2,
  .silson-sources h2,
  .silson-related h2 { font-size: 1.36rem; }
  .silson-group { padding: 15px 12px; }
  .silson-fields,
  .silson-related > div { grid-template-columns: minmax(0, 1fr); }
  .silson-field.silson-wide { grid-column: auto; }
  .silson-actions { grid-template-columns: minmax(0, 1fr); }
  .silson-result-grid { grid-template-columns: minmax(0, 1fr); }
  .silson-related a { min-height: 94px; }
}

@media screen and (max-width: 380px) {
  .silson-heading { grid-template-columns: minmax(0, 1fr); }
  .silson-heading img { width: 100%; height: 118px; }
  .silson-heading h1 { font-size: 1.55rem; }
  .silson-heading h1 span { display: block; }
  .silson-tabs button { min-height: 48px; padding: 8px 5px; font-size: .8rem; }
  .silson-panel-heading > span { display: none; }
  .silson-result-actions { grid-template-columns: minmax(0, 1fr); }
}