/* Integrated from free SG Lot Calculator widget styles (calculator only). */
/* =========================================================================
   Scoped styles for this single tool page. Everything is nested under
   .sg-service-page so it never bleeds into the host site's global menus,
   typography, or colour scheme. Tokens match sggroup.jp service pages.
   ========================================================================= */
html, body { margin: 0; padding: 0; }
.sg-service-page {
  --sg-fg:        #1c1f24;
  --sg-fg-muted:  #5a6068;
  --sg-fg-faint:  #8c9098;
  --sg-bg:        #ffffff;
  --sg-bg-soft:   #f6f7f8;
  --sg-bg-card:   #fbfbfc;
  --sg-border:    #e4e6ea;
  --sg-border-strong: #c9ccd2;
  --sg-accent:    #1f3a5f;
  --sg-accent-soft: #eef2f7;
  --sg-warn:      #8a2a2a;
  --sg-warn-soft: #fbeeee;
  --sg-warn-border: #e4c5c5;
  /* Calm status colours (introduced for the result badges; not alarming). */
  --sg-ok:        #2f6b4f;
  --sg-ok-soft:   #eef4f0;
  --sg-ok-border: #cfe0d6;
  --sg-cau:       #8a6a2a;
  --sg-cau-soft:  #faf4e8;
  --sg-cau-border:#e6dcc2;
  --sg-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sg-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", "Meiryo", system-ui, sans-serif;
  --sg-radius: 4px;
  --sg-radius-lg: 8px;
  color: var(--sg-fg);
  background: var(--sg-bg);
  font-family: var(--sg-sans);
  font-size: 15.5px;
  line-height: 1.78;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
.sg-service-page * { box-sizing: border-box; }
.sg-service-page .sg-container { max-width: 1080px; margin: 0 auto; padding: 0 28px; }

/* ---- Breadcrumb ----------------------------------------------------- */
.sg-service-page .sg-breadcrumb {
  font-family: var(--sg-mono);
  font-size: 11.5px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--sg-fg-faint); padding: 18px 0 0;
}
.sg-service-page .sg-breadcrumb a { color: var(--sg-fg-faint); text-decoration: none; }
.sg-service-page .sg-breadcrumb a:hover { color: var(--sg-accent); }
.sg-service-page .sg-breadcrumb span[aria-current] { color: var(--sg-fg-muted); }
.sg-service-page .sg-breadcrumb .sep { margin: 0 8px; opacity: 0.6; }

/* ---- Hero ----------------------------------------------------------- */
.sg-service-page .sg-hero { padding: 56px 0 44px; border-bottom: 1px solid var(--sg-border);
  background: linear-gradient(180deg, var(--sg-bg-soft) 0%, var(--sg-bg) 100%); }
.sg-service-page .sg-eyebrow { font-family: var(--sg-mono); font-size: 12px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--sg-accent); margin: 0 0 16px; }
.sg-service-page h1.sg-h1 { font-size: 36px; line-height: 1.3; font-weight: 600; letter-spacing: -0.01em;
  margin: 0 0 18px; color: var(--sg-fg); }
.sg-service-page .sg-lede { font-size: 16.5px; line-height: 1.85; color: var(--sg-fg-muted);
  max-width: 780px; margin: 0; }
.sg-service-page .sg-badge-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; align-items: center; }
.sg-service-page .sg-free-badge { display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--sg-mono); font-size: 12px; letter-spacing: 0.08em; font-weight: 600;
  color: var(--sg-ok); background: var(--sg-ok-soft); border: 1px solid var(--sg-ok-border);
  padding: 7px 14px; border-radius: 999px; }
.sg-service-page .sg-free-badge::before { content: "●"; font-size: 8px; }
.sg-service-page .sg-paid-note { font-size: 12.5px; color: var(--sg-fg-faint); }
.sg-service-page .sg-paid-badge { display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--sg-mono); font-size: 12px; letter-spacing: 0.08em; font-weight: 600;
  color: var(--sg-accent); background: var(--sg-accent-soft); border: 1px solid var(--sg-border-strong);
  padding: 7px 14px; border-radius: 999px; text-decoration: none; transition: border-color 140ms ease, background 140ms ease; }
.sg-service-page .sg-paid-badge::before { content: "●"; font-size: 8px; }
.sg-service-page .sg-paid-badge:hover { border-color: var(--sg-accent); background: #e6edf5; }

/* ---- Sections ------------------------------------------------------- */
.sg-service-page section.sg-section { padding: 56px 0; border-bottom: 1px solid var(--sg-border); }
.sg-service-page section.sg-section:last-of-type { border-bottom: 0; }
.sg-service-page h2.sg-h2 { font-size: 23px; line-height: 1.4; font-weight: 600; letter-spacing: -0.005em;
  margin: 0 0 10px; color: var(--sg-fg); }
.sg-service-page .sg-section-kicker { font-family: var(--sg-mono); font-size: 11.5px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--sg-fg-faint); margin: 0 0 12px; }
.sg-service-page h3.sg-h3 { font-size: 16.5px; line-height: 1.5; font-weight: 600; margin: 0 0 10px; color: var(--sg-fg); }
.sg-service-page p.sg-p { margin: 0 0 16px; color: var(--sg-fg); }
.sg-service-page p.sg-p--muted { color: var(--sg-fg-muted); }
.sg-service-page .sg-section-lede { max-width: 800px; margin: 0 0 32px; color: var(--sg-fg-muted); font-size: 16px; }

/* ---- Generic cards / grids ----------------------------------------- */
.sg-service-page .sg-grid { display: grid; gap: 18px; }
.sg-service-page .sg-grid--2 { grid-template-columns: repeat(2, 1fr); }
.sg-service-page .sg-grid--3 { grid-template-columns: repeat(3, 1fr); }
.sg-service-page .sg-card { border: 1px solid var(--sg-border); background: var(--sg-bg-card);
  border-radius: var(--sg-radius-lg); padding: 24px 24px 20px; }
.sg-service-page .sg-card .sg-card-tag { font-family: var(--sg-mono); font-size: 11px; letter-spacing: 0.12em;
  color: var(--sg-accent); text-transform: uppercase; margin: 0 0 12px; }
.sg-service-page .sg-card p { margin: 0; color: var(--sg-fg-muted); font-size: 14.5px; line-height: 1.75; }

/* ---- Definition list ------------------------------------------------ */
.sg-service-page .sg-deflist { display: grid; grid-template-columns: 230px 1fr; gap: 12px 28px; margin: 0; padding: 0; }
.sg-service-page .sg-deflist dt { font-family: var(--sg-mono); font-size: 12px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--sg-fg-faint); padding-top: 3px; }
.sg-service-page .sg-deflist dd { margin: 0; color: var(--sg-fg); }

/* ===================== CALCULATOR ===================== */
.sg-calc { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 28px; align-items: start; }
.sg-calc__form { min-width: 0; }
.sg-calc__results { min-width: 0; position: sticky; top: 20px; }

.sg-mode { display: inline-flex; background: var(--sg-bg-soft); border: 1px solid var(--sg-border);
  border-radius: 999px; padding: 4px; gap: 4px; margin-bottom: 24px; flex-wrap: wrap; }
.sg-mode button { appearance: none; border: 0; background: transparent; cursor: pointer;
  font-family: var(--sg-sans); font-size: 13.5px; font-weight: 600; color: var(--sg-fg-muted);
  padding: 8px 16px; border-radius: 999px; transition: background 140ms ease, color 140ms ease; }
.sg-mode button[aria-pressed="true"] { background: var(--sg-accent); color: #fff; }

.sg-fieldset { border: 1px solid var(--sg-border); border-radius: var(--sg-radius-lg);
  padding: 20px 20px 8px; margin: 0 0 18px; background: var(--sg-bg); }
.sg-fieldset > legend { font-family: var(--sg-mono); font-size: 11.5px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--sg-accent); font-weight: 600; padding: 0 8px; margin-left: -4px; }
.sg-field { margin-bottom: 16px; }
.sg-field > label, .sg-field > .sg-field-label { display: block; font-size: 13px; font-weight: 600;
  color: var(--sg-fg); margin-bottom: 6px; }
.sg-field-req { color: var(--sg-warn); font-weight: 700; margin-left: 2px; }
.sg-input, .sg-select { width: 100%; font-family: var(--sg-sans); font-size: 15px; color: var(--sg-fg);
  background: var(--sg-bg); border: 1px solid var(--sg-border-strong); border-radius: var(--sg-radius);
  padding: 10px 12px; line-height: 1.4; transition: border-color 140ms ease, box-shadow 140ms ease; }
.sg-input:focus, .sg-select:focus { outline: none; border-color: var(--sg-accent);
  box-shadow: 0 0 0 3px var(--sg-accent-soft); }
.sg-input[aria-invalid="true"] { border-color: var(--sg-warn); box-shadow: 0 0 0 3px var(--sg-warn-soft); }
.sg-input:disabled { background: var(--sg-bg-soft); color: var(--sg-fg-faint); }
.sg-input-suffix { position: relative; }
.sg-input-suffix .sg-suffix { position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  font-size: 12.5px; color: var(--sg-fg-faint); font-family: var(--sg-mono); pointer-events: none; }
.sg-input-suffix .sg-input { padding-right: 46px; }
.sg-field-hint { font-size: 12px; color: var(--sg-fg-faint); margin-top: 5px; line-height: 1.5; }
.sg-field-error { font-size: 12.5px; color: var(--sg-warn); margin-top: 5px; line-height: 1.5; display: none; }
.sg-field-error.is-shown { display: block; }
.sg-chiprow { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.sg-chip { appearance: none; cursor: pointer; font-family: var(--sg-mono); font-size: 11.5px;
  border: 1px solid var(--sg-border-strong); background: var(--sg-bg); color: var(--sg-fg-muted);
  padding: 5px 10px; border-radius: 999px; transition: all 120ms ease; }
.sg-chip:hover { border-color: var(--sg-accent); color: var(--sg-accent); }
.sg-chip[aria-pressed="true"] { background: var(--sg-accent); color: #fff; border-color: var(--sg-accent); }
.sg-field-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.sg-switch { display: flex; align-items: center; gap: 10px; cursor: pointer; font-size: 13.5px; color: var(--sg-fg); }
.sg-switch input { width: 18px; height: 18px; accent-color: var(--sg-accent); cursor: pointer; }

/* ---- Action buttons ------------------------------------------------- */
.sg-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 6px; }
.sg-btn { appearance: none; cursor: pointer; font-family: var(--sg-sans); font-size: 14px; font-weight: 600;
  border-radius: var(--sg-radius); padding: 11px 18px; border: 1px solid var(--sg-border-strong);
  background: var(--sg-bg); color: var(--sg-fg); transition: all 140ms ease; }
.sg-btn:hover { border-color: var(--sg-accent); color: var(--sg-accent); }
.sg-btn--primary { background: var(--sg-accent); color: #fff; border-color: var(--sg-accent); }
.sg-btn--primary:hover { background: #16314f; color: #fff; }
.sg-btn:focus-visible { outline: 2px solid var(--sg-accent); outline-offset: 2px; }

/* ---- Share URL (revealed by "copy share URL") ----------------------- */
.sg-share-url { margin-top: 12px; border: 1px solid var(--sg-border); background: var(--sg-bg-soft);
  border-radius: var(--sg-radius); padding: 12px 14px; }
.sg-share-url[hidden] { display: none; }
.sg-share-url label { display: block; font-family: var(--sg-mono); font-size: 11px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--sg-fg-faint); margin: 0 0 6px; }
.sg-share-url input { width: 100%; font-family: var(--sg-mono); font-size: 12.5px; color: var(--sg-fg);
  background: var(--sg-bg); border: 1px solid var(--sg-border-strong); border-radius: var(--sg-radius);
  padding: 8px 10px; }
.sg-share-url p { margin: 6px 0 0; font-size: 11.5px; color: var(--sg-fg-faint); line-height: 1.6; }

/* ---- Results -------------------------------------------------------- */
.sg-results-panel { border: 1px solid var(--sg-border-strong); border-radius: var(--sg-radius-lg);
  background: var(--sg-bg-card); padding: 22px; min-height: 360px; }
.sg-results-empty { color: var(--sg-fg-faint); font-size: 14px; line-height: 1.8; }
.sg-results-blocker { border: 1px solid var(--sg-cau-border); background: var(--sg-cau-soft);
  color: var(--sg-cau); border-radius: var(--sg-radius); padding: 14px 16px; font-size: 13.5px; line-height: 1.7; }
.sg-result-primary { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.sg-result-primary .sg-rc--wide { grid-column: 1 / -1; }
.sg-rc { border: 1px solid var(--sg-border); border-radius: var(--sg-radius); background: var(--sg-bg); padding: 14px 16px; }
.sg-rc__label { font-family: var(--sg-mono); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--sg-fg-faint); margin: 0 0 6px; }
.sg-rc__value { font-size: 24px; font-weight: 600; color: var(--sg-fg); line-height: 1.1; letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums; }
.sg-rc--wide .sg-rc__value { font-size: 30px; color: var(--sg-accent); }
.sg-rc__sub { font-size: 11.5px; color: var(--sg-fg-faint); margin-top: 5px; }

.sg-badge { display: inline-flex; align-items: center; gap: 5px; font-family: var(--sg-mono); font-size: 11px;
  font-weight: 600; letter-spacing: 0.06em; padding: 3px 9px; border-radius: 999px; border: 1px solid transparent; }
.sg-badge::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.sg-badge--ok   { color: var(--sg-ok);   background: var(--sg-ok-soft);   border-color: var(--sg-ok-border); }
.sg-badge--cau  { color: var(--sg-cau);  background: var(--sg-cau-soft);  border-color: var(--sg-cau-border); }
.sg-badge--high { color: var(--sg-warn); background: var(--sg-warn-soft); border-color: var(--sg-warn-border); }

.sg-result-warnings { margin: 16px 0 0; display: grid; gap: 8px; }
.sg-inline-warn { border: 1px solid var(--sg-warn-border); background: var(--sg-warn-soft);
  border-radius: var(--sg-radius); padding: 11px 14px; font-size: 12.8px; line-height: 1.65; color: var(--sg-warn); }
.sg-inline-note { border: 1px solid var(--sg-cau-border); background: var(--sg-cau-soft);
  border-radius: var(--sg-radius); padding: 11px 14px; font-size: 12.8px; line-height: 1.65; color: var(--sg-cau); }

.sg-result-detail { margin-top: 18px; }
.sg-result-detail summary { cursor: pointer; font-family: var(--sg-mono); font-size: 11.5px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--sg-accent); font-weight: 600; padding: 6px 0; }
.sg-dtable { width: 100%; border-collapse: collapse; font-size: 13px; margin-top: 8px; }
.sg-dtable th, .sg-dtable td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--sg-border); vertical-align: top; }
.sg-dtable th { font-weight: 500; color: var(--sg-fg-muted); width: 56%; }
.sg-dtable td { font-weight: 600; color: var(--sg-fg); text-align: right; font-variant-numeric: tabular-nums; }
.sg-dtable tr:last-child th, .sg-dtable tr:last-child td { border-bottom: 0; }
.sg-result-foot { margin-top: 14px; font-size: 11.5px; color: var(--sg-fg-faint); line-height: 1.6; }

/* ---- Differentiation / feature cards -------------------------------- */
.sg-callout { border-left: 3px solid var(--sg-accent); background: var(--sg-accent-soft);
  border-radius: 0 var(--sg-radius) var(--sg-radius) 0; padding: 18px 22px; margin: 0 0 28px;
  font-size: 15px; line-height: 1.8; color: var(--sg-fg); }

/* ---- Notice / warn blocks ------------------------------------------- */
.sg-service-page .sg-notice { border: 1px solid var(--sg-border); background: var(--sg-accent-soft);
  border-radius: var(--sg-radius-lg); padding: 24px 26px; color: var(--sg-fg); font-size: 14.5px; line-height: 1.85; }
.sg-service-page .sg-notice h3 { font-size: 14px; margin: 0 0 10px; font-family: var(--sg-mono);
  text-transform: uppercase; letter-spacing: 0.12em; color: var(--sg-accent); }
.sg-service-page .sg-warn-block { border: 1.5px solid var(--sg-warn-border); background: var(--sg-warn-soft);
  border-radius: var(--sg-radius-lg); padding: 26px 28px; color: var(--sg-fg); font-size: 14px; line-height: 1.85; }
.sg-service-page .sg-warn-block h3 { font-size: 13.5px; margin: 0 0 12px; font-family: var(--sg-mono);
  text-transform: uppercase; letter-spacing: 0.12em; color: var(--sg-warn); font-weight: 700; }
.sg-service-page .sg-warn-block ul { margin: 8px 0 12px; padding-left: 20px; }
.sg-service-page .sg-warn-block li { margin: 4px 0; }

/* ---- Paid CTA ------------------------------------------------------- */
.sg-cta { border: 1px solid var(--sg-border-strong); border-radius: var(--sg-radius-lg);
  background: linear-gradient(180deg, #fff 0%, var(--sg-bg-soft) 100%); padding: 30px 30px 28px; }
.sg-cta__kicker { font-family: var(--sg-mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--sg-fg-faint); margin: 0 0 10px; }
.sg-cta h3 { font-size: 20px; font-weight: 600; margin: 0 0 12px; color: var(--sg-fg); }
.sg-cta p { margin: 0 0 18px; color: var(--sg-fg-muted); font-size: 14.5px; line-height: 1.8; max-width: 760px; }
.sg-cta__list { list-style: none; margin: 0 0 22px; padding: 0; display: grid;
  grid-template-columns: repeat(2, 1fr); gap: 8px 20px; }
.sg-cta__list li { font-size: 13.5px; color: var(--sg-fg); padding-left: 18px; position: relative; line-height: 1.6; }
.sg-cta__list li::before { content: "→"; position: absolute; left: 0; color: var(--sg-accent); font-family: var(--sg-mono); }
.sg-cta__btn { display: inline-flex; align-items: center; gap: 10px; text-decoration: none;
  font-family: var(--sg-sans); font-size: 14px; font-weight: 600; color: #fff; background: var(--sg-accent);
  border: 1px solid var(--sg-accent); border-radius: var(--sg-radius); padding: 12px 22px; transition: background 140ms ease; }
.sg-cta__btn:hover { background: #16314f; }
.sg-cta--slim { padding: 22px 26px; }
.sg-cta--slim .sg-cta__list { display: none; }

/* ---- FAQ ------------------------------------------------------------ */
.sg-faq details { border: 1px solid var(--sg-border); border-radius: var(--sg-radius); margin-bottom: 10px; background: var(--sg-bg-card); }
.sg-faq summary { cursor: pointer; list-style: none; padding: 16px 20px; font-weight: 600; font-size: 15px;
  color: var(--sg-fg); display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.sg-faq summary::-webkit-details-marker { display: none; }
.sg-faq summary::after { content: "+"; font-family: var(--sg-mono); color: var(--sg-accent); font-size: 18px; flex-shrink: 0; }
.sg-faq details[open] summary::after { content: "−"; }
.sg-faq .sg-faq-a { padding: 0 20px 18px; color: var(--sg-fg-muted); font-size: 14.5px; line-height: 1.8; }

/* ---- Formula list --------------------------------------------------- */
.sg-formulas { display: grid; gap: 10px; }
.sg-formula { border: 1px solid var(--sg-border); border-radius: var(--sg-radius); background: var(--sg-bg-card); padding: 14px 16px; }
.sg-formula b { display: block; font-size: 13.5px; color: var(--sg-fg); margin-bottom: 4px; }
.sg-formula code { font-family: var(--sg-mono); font-size: 12.5px; color: var(--sg-accent); line-height: 1.7; word-break: break-word; }

/* ---- Footer / legal ------------------------------------------------- */
.sg-service-page .sg-legal-links { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 18px; font-size: 13px; }
.sg-service-page .sg-legal-links a { color: var(--sg-accent); text-decoration: none; }
.sg-service-page .sg-legal-links a:hover { text-decoration: underline; }
.sg-service-page .sg-footer { padding: 32px 0 56px; color: var(--sg-fg-faint); font-size: 12.5px;
  font-family: var(--sg-mono); letter-spacing: 0.06em; border-top: 1px solid var(--sg-border); }

/* ---- Toast ---------------------------------------------------------- */
.sg-toast { position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(20px);
  background: var(--sg-fg); color: #fff; font-size: 13px; padding: 10px 18px; border-radius: 999px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.18); opacity: 0; pointer-events: none; transition: opacity 180ms ease, transform 180ms ease; z-index: 200; }
.sg-toast.is-shown { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---- Responsive ----------------------------------------------------- */
@media (max-width: 900px) {
  .sg-calc { grid-template-columns: 1fr; gap: 22px; }
  .sg-calc__results { position: static; }
  .sg-service-page .sg-grid--2, .sg-service-page .sg-grid--3 { grid-template-columns: 1fr; }
  .sg-cta__list { grid-template-columns: 1fr; }
  .sg-service-page .sg-deflist { grid-template-columns: 1fr; gap: 4px 0; }
  .sg-service-page .sg-deflist dt { padding-top: 12px; }
  .sg-service-page h1.sg-h1 { font-size: 29px; }
  .sg-service-page .sg-hero { padding: 40px 0 36px; }
  .sg-service-page section.sg-section { padding: 44px 0; }
}
@media (max-width: 520px) {
  .sg-service-page .sg-container { padding: 0 18px; }
  .sg-result-primary { grid-template-columns: 1fr; }
  .sg-field-2col { grid-template-columns: 1fr; }
}

/* ---- Optional dark adaptation (only if host prefers dark) ------------ */
@media (prefers-color-scheme: dark) {
  .sg-service-page.sg-dark-ok {
    --sg-fg: #e8eaed; --sg-fg-muted: #a8adb5; --sg-fg-faint: #7a8089;
    --sg-bg: #15171b; --sg-bg-soft: #1b1e23; --sg-bg-card: #1a1d22;
    --sg-border: #2a2e35; --sg-border-strong: #3a3f47;
    --sg-accent: #7ba6d8; --sg-accent-soft: #1e2733;
    --sg-warn: #d98a8a; --sg-warn-soft: #2a1d1d; --sg-warn-border: #4a3030;
    --sg-ok: #7fc6a3; --sg-ok-soft: #18241e; --sg-ok-border: #2c4438;
    --sg-cau: #d9bd7f; --sg-cau-soft: #262017; --sg-cau-border: #45391f;
  }
}
@media (prefers-reduced-motion: reduce) {
  .sg-service-page *, .sg-toast { transition: none !important; }
}