/* =============================================================
   Formthotics — Size Guide page (/size/) scoped styles
   All rules are scoped under #size-guide to avoid leaking into
   the global theme. No external CSS framework.
   ============================================================= */

#size-guide {
  --sg-sky: #00a3e2;
  --sg-teal: #00577a;
  --sg-teal-deep: #003850;
  --sg-orange: #f57800;
  --sg-surface: #f0f0f0;
  --sg-line: #e8eaec;
  --sg-ink: #00577a;

  font-family: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--sg-ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  background: #fff;
  overflow-x: hidden;
}

#size-guide *,
#size-guide *::before,
#size-guide *::after { box-sizing: border-box; }

#size-guide img { max-width: 100%; height: auto; display: block; }

#size-guide .sg-display {
  font-family: "Outfit", "Noto Sans JP", sans-serif;
  letter-spacing: -0.02em;
}

#size-guide .sg-container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

#size-guide .sg-eyebrow {
  font-family: "Outfit", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 12px;
  font-weight: 700;
  color: var(--sg-sky);
  margin: 0 0 10px;
}

#size-guide .sg-h2 {
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 700;
  margin: 0;
  color: var(--sg-teal);
}

#size-guide .sg-section { padding: clamp(56px, 9vw, 96px) 0; }
#size-guide .sg-section--surface { background: var(--sg-surface); }

/* ---------- Buttons ---------- */
#size-guide .sg-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  transition: transform .25s ease, background-color .25s ease, box-shadow .25s ease;
  border: 1px solid transparent;
  cursor: pointer;
}
#size-guide .sg-btn svg { width: 18px; height: 18px; }
#size-guide .sg-btn--primary {
  background: var(--sg-teal);
  color: #fff;
  box-shadow: 0 18px 36px -16px rgba(0,87,122,.5);
}
#size-guide .sg-btn--primary:hover { transform: translateY(-2px); background: var(--sg-teal-deep); }
#size-guide .sg-btn--ghost {
  background: #fff;
  color: var(--sg-teal);
  border-color: var(--sg-line);
}
#size-guide .sg-btn--ghost:hover { background: var(--sg-surface); }
#size-guide .sg-btn--light { background: #fff; color: var(--sg-teal); }
#size-guide .sg-btn--light:hover { transform: translateY(-2px); }
#size-guide .sg-btn--outline {
  background: transparent; color: #fff; border-color: rgba(255,255,255,.35);
}
#size-guide .sg-btn--outline:hover { background: rgba(255,255,255,.12); }

/* ---------- Hero ---------- */
#size-guide .sg-hero {
  position: relative;
  background: var(--sg-surface);
  /* extra top padding clears the theme's fixed header (~100px on desktop) so the badge isn't tucked under it */
  padding: 132px 0 clamp(56px, 8vw, 88px);
  overflow: hidden;
}
#size-guide .sg-hero-watermark {
  position: absolute;
  top: 50%; left: 0; right: 0;
  transform: translateY(-50%);
  font-family: "Outfit", sans-serif;
  font-weight: 700;
  font-size: 20vw;
  line-height: 1;
  white-space: nowrap;
  color: var(--sg-teal);
  opacity: .04;
  pointer-events: none;
  user-select: none;
  text-align: center;
}
#size-guide .sg-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 48px;
  align-items: center;
}
#size-guide .sg-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  color: var(--sg-sky);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: .06em;
  padding: 7px 14px;
  border-radius: 999px;
  box-shadow: 0 4px 14px rgba(0,0,0,.05);
  margin-bottom: 22px;
}
#size-guide .sg-badge svg { width: 16px; height: 16px; }
#size-guide .sg-h1 {
  font-size: clamp(52px, 9vw, 104px);
  font-weight: 300;
  line-height: .88;
  letter-spacing: -0.03em;
  margin: 0 0 18px;
  color: var(--sg-teal);
}
#size-guide .sg-h1 b { display: block; font-weight: 500; color: var(--sg-sky); }
#size-guide .sg-hero-jp {
  font-size: clamp(19px, 2.6vw, 26px);
  font-weight: 500;
  margin: 0 0 18px;
  color: rgba(0,87,122,.75);
}
#size-guide .sg-hero-p {
  max-width: 30rem;
  color: rgba(0,87,122,.78);
  margin: 0 0 32px;
}
#size-guide .sg-cta-row { display: flex; gap: 14px; flex-wrap: wrap; }

#size-guide .sg-hero-media { position: relative; display: flex; justify-content: center; }
#size-guide .sg-hero-figure {
  position: relative;
  width: 100%;
  max-width: 440px;
}
#size-guide .sg-hero-glow {
  position: absolute;
  inset: 8% 6%;
  background: rgba(0,163,226,.18);
  filter: blur(48px);
  border-radius: 48px;
  transform: rotate(8deg);
}
#size-guide .sg-hero-img {
  position: relative;
  width: 100%;
  border-radius: 32px;
  border: 8px solid #fff;
  box-shadow: 0 30px 60px -22px rgba(0,87,122,.35);
  object-fit: cover;
}
#size-guide .sg-hero-chip {
  position: absolute;
  left: -14px; bottom: -22px;
  background: #fff;
  border: 1px solid var(--sg-line);
  border-radius: 18px;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 18px 40px -18px rgba(0,87,122,.4);
}
#size-guide .sg-hero-chip .sg-chip-ic {
  width: 40px; height: 40px; border-radius: 999px;
  background: var(--sg-surface);
  display: flex; align-items: center; justify-content: center;
  color: var(--sg-teal);
}
#size-guide .sg-hero-chip .sg-chip-ic svg { width: 20px; height: 20px; }
#size-guide .sg-hero-chip .sg-chip-k {
  font-family: "Outfit", sans-serif; font-size: 10px; font-weight: 700;
  letter-spacing: .15em; text-transform: uppercase; color: rgba(0,87,122,.5); margin: 0;
}
#size-guide .sg-hero-chip .sg-chip-v { font-weight: 600; margin: 0; line-height: 1.2; }

/* ---------- Video block ---------- */
#size-guide .sg-video-card {
  background: var(--sg-surface);
  border-radius: 32px;
  padding: clamp(16px, 2.5vw, 28px);
  display: grid;
  grid-template-columns: 1fr 1.8fr;
  gap: clamp(16px, 3vw, 36px);
  align-items: center;
}
#size-guide .sg-video-copy h3 { margin: 0 0 16px; }
#size-guide .sg-checklist { list-style: none; margin: 18px 0 0; padding: 0; }
#size-guide .sg-checklist li {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 14px; font-weight: 500; margin-bottom: 12px;
}
#size-guide .sg-checklist svg { width: 18px; height: 18px; color: var(--sg-sky); flex: none; margin-top: 2px; }
#size-guide .sg-embed {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  border-radius: 20px;
  overflow: hidden;
  background: #000;
  box-shadow: 0 24px 48px -20px rgba(0,87,122,.35);
}
#size-guide .sg-embed iframe {
  position: absolute; inset: 0; width: 100%; height: 100%; border: 0;
}

/* ---------- Thickness stat cards ---------- */
#size-guide .sg-head-center { text-align: center; max-width: 640px; margin: 0 auto clamp(32px,5vw,48px); }
#size-guide .sg-head-center p { color: rgba(0,87,122,.7); font-size: 15px; margin: 14px 0 0; }
#size-guide .sg-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
#size-guide .sg-stat {
  position: relative;
  background: #fff;
  border: 1px solid var(--sg-line);
  border-radius: 28px;
  padding: clamp(28px, 4vw, 48px);
  overflow: hidden;
  transition: box-shadow .3s ease, border-color .3s ease, transform .3s ease;
}
#size-guide .sg-stat:hover {
  box-shadow: 0 24px 50px -22px rgba(0,87,122,.25);
  border-color: rgba(0,163,226,.35);
  transform: translateY(-3px);
}
#size-guide .sg-stat > * { position: relative; z-index: 1; }

/* Highlighted tip callout (e.g. cut 3–5mm larger) */
#size-guide .sg-tip {
  display: flex; gap: 12px; align-items: flex-start;
  background: rgba(0,163,226,.07);
  border: 1px solid rgba(0,163,226,.25);
  border-radius: 14px;
  padding: 16px 18px;
  margin-top: 20px;
}
#size-guide .sg-tip svg { width: 22px; height: 22px; color: var(--sg-sky); flex: none; margin-top: 1px; }
#size-guide .sg-tip b { display: block; color: var(--sg-teal); font-size: 14px; margin-bottom: 3px; }
#size-guide .sg-tip span { font-size: 13px; color: rgba(0,87,122,.8); line-height: 1.7; }
#size-guide .sg-stat-tag {
  display: inline-block;
  font-size: 11px; font-weight: 700; letter-spacing: .08em;
  padding: 5px 12px; border-radius: 999px; margin-bottom: 12px;
}
#size-guide .sg-stat-tag--single { background: var(--sg-surface); color: var(--sg-teal); }
#size-guide .sg-stat-tag--dual { background: var(--sg-sky); color: #fff; }
#size-guide .sg-stat h4 { font-size: 22px; font-weight: 700; margin: 0; }
#size-guide .sg-stat-sub { font-size: 13px; color: rgba(0,87,122,.6); margin: 4px 0 0; }
#size-guide .sg-stat-figure { display: flex; align-items: baseline; gap: 8px; margin-top: clamp(28px,4vw,44px); }
#size-guide .sg-stat-num {
  font-family: "Outfit", sans-serif;
  font-weight: 300;
  font-size: clamp(64px, 11vw, 120px);
  line-height: .85;
  letter-spacing: -0.04em;
  color: var(--sg-teal);
}
#size-guide .sg-stat-unit { font-family: "Outfit", sans-serif; font-size: 28px; font-weight: 500; color: rgba(0,87,122,.45); }

/* ---------- Product gallery ---------- */
#size-guide .sg-gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: clamp(36px,5vw,56px); }
#size-guide .sg-gallery figure { margin: 0; }
#size-guide .sg-gallery img {
  width: 100%; aspect-ratio: 4 / 3; object-fit: cover;
  border-radius: 24px;
  box-shadow: 0 22px 46px -26px rgba(0,87,122,.4);
}

/* ---------- Sizing table ---------- */
#size-guide .sg-table-intro { max-width: 640px; margin-bottom: 28px; }
#size-guide .sg-table-intro .sg-h2.sg-display { font-weight: 300; font-size: clamp(34px,6vw,64px); }
#size-guide .sg-table-intro p { color: rgba(0,87,122,.72); margin: 14px 0 0; }
#size-guide .sg-table-intro strong { border-bottom: 2px solid var(--sg-sky); font-weight: 700; }
#size-guide .sg-table-wrap {
  position: relative;
  background: #fff;
  border: 1px solid var(--sg-line);
  border-radius: 24px;
  box-shadow: 0 24px 50px -28px rgba(0,87,122,.25);
  overflow: hidden;
}
#size-guide .sg-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
#size-guide table.sg-table { width: 100%; min-width: 820px; border-collapse: collapse; }
#size-guide .sg-table thead th {
  font-family: "Outfit", sans-serif;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: 11px;
  font-weight: 600;
  color: rgba(0,87,122,.6);
  background: #fafbfc;
  padding: 16px 12px;
  border-bottom: 1px solid var(--sg-line);
  text-align: center;
  white-space: nowrap;
}
#size-guide .sg-table thead th:first-child { text-align: left; padding-left: 28px; }
#size-guide .sg-table thead th.sg-col-len { color: var(--sg-sky); }
#size-guide .sg-table tbody td {
  padding: 14px 12px;
  border-bottom: 1px solid #f3f4f5;
  text-align: center;
  font-size: 14px;
  color: rgba(0,87,122,.85);
  white-space: nowrap;
}
#size-guide .sg-table tbody tr:last-child td { border-bottom: 0; }
#size-guide .sg-table tbody tr { transition: background-color .2s ease; }
#size-guide .sg-table tbody tr:hover { background: rgba(0,163,226,.04); }
#size-guide .sg-table td.sg-size {
  text-align: left; padding-left: 28px;
  font-family: "Outfit", sans-serif; font-weight: 700; font-size: 17px; color: var(--sg-teal);
}
#size-guide .sg-table td.sg-len {
  font-family: "Outfit", sans-serif; font-weight: 600; color: var(--sg-sky);
}
#size-guide .sg-table td.sg-len span {
  display: inline-block; background: rgba(0,163,226,.08); border-radius: 8px; padding: 4px 12px; min-width: 64px;
}
#size-guide .sg-table td.sg-muted { color: rgba(0,87,122,.55); font-family: "Outfit", sans-serif; }
#size-guide .sg-scroll-hint {
  display: none;
  align-items: center; justify-content: flex-end; gap: 6px;
  font-size: 12px; color: rgba(0,87,122,.5); margin-top: 10px;
}
#size-guide .sg-scroll-hint svg { width: 16px; height: 16px; }
#size-guide .sg-note { font-size: 12.5px; color: rgba(0,87,122,.6); margin: 14px 4px 0; }

/* ---------- How to trim ---------- */
#size-guide .sg-trim-head {
  display: flex; justify-content: space-between; align-items: flex-end; gap: 24px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--sg-line); padding-bottom: 28px; margin-bottom: 48px;
}
#size-guide .sg-trim-head .sg-display { font-weight: 300; font-size: clamp(30px,5vw,48px); margin: 0 0 4px; color: var(--sg-teal); }
#size-guide .sg-trim-head h3 { font-size: 22px; font-weight: 700; margin: 0; }
#size-guide .sg-warn {
  background: rgba(245,120,0,.10);
  border-left: 4px solid var(--sg-orange);
  border-radius: 0 12px 12px 0;
  padding: 16px 18px;
  max-width: 380px;
  display: flex; gap: 12px; align-items: flex-start;
}
#size-guide .sg-warn svg { width: 22px; height: 22px; color: var(--sg-orange); flex: none; margin-top: 2px; }
#size-guide .sg-warn b { display: block; color: var(--sg-orange); font-size: 14px; margin-bottom: 4px; }
#size-guide .sg-warn span { font-size: 12.5px; color: rgba(0,87,122,.8); line-height: 1.7; }
#size-guide .sg-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
#size-guide .sg-step-num {
  width: 60px; height: 60px; border-radius: 18px;
  background: #fff; border: 1px solid var(--sg-line);
  display: flex; align-items: center; justify-content: center;
  font-family: "Outfit", sans-serif; font-weight: 700; font-size: 22px; color: var(--sg-sky);
  margin-bottom: 22px;
  box-shadow: 0 6px 16px rgba(0,87,122,.06);
  transition: transform .3s ease;
}
#size-guide .sg-step:hover .sg-step-num { transform: translateY(-4px); }
#size-guide .sg-step--accent .sg-step-num { background: var(--sg-sky); color: #fff; border-color: var(--sg-sky); }
#size-guide .sg-step h4 {
  font-size: 17px; font-weight: 700; margin: 0 0 12px;
  display: inline-block; border-bottom: 2px solid var(--sg-sky); padding-bottom: 4px;
}
#size-guide .sg-step p { font-size: 14px; color: rgba(0,87,122,.72); margin: 0; }

#size-guide .sg-points { margin-top: 40px; background: var(--sg-surface); border-radius: 20px; padding: clamp(22px,3vw,32px); }
#size-guide .sg-points h4 { margin: 0 0 14px; font-size: 16px; font-weight: 700; color: var(--sg-teal); }
#size-guide .sg-points ol { margin: 0; padding-left: 1.2em; }
#size-guide .sg-points li { font-size: 14px; margin-bottom: 8px; color: rgba(0,87,122,.82); }

/* ---------- CTA band ---------- */
#size-guide .sg-cta-band {
  position: relative;
  background: var(--sg-teal);
  color: #fff;
  text-align: center;
  padding: clamp(56px, 9vw, 96px) 0;
  overflow: hidden;
}
#size-guide .sg-cta-band::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 42px 42px;
  opacity: .5;
}
#size-guide .sg-cta-band > * { position: relative; z-index: 1; }
#size-guide .sg-cta-band h2 {
  font-family: "Outfit", "Noto Sans JP", sans-serif;
  font-weight: 300;
  font-size: clamp(28px, 5vw, 52px);
  margin: 0 0 18px;
}
#size-guide .sg-cta-band h2 b { color: var(--sg-sky); font-weight: 700; }
#size-guide .sg-cta-band p { color: rgba(255,255,255,.82); max-width: 620px; margin: 0 auto 32px; }
#size-guide .sg-cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* =====================  Responsive  ===================== */
@media (max-width: 900px) {
  #size-guide .sg-hero-grid { grid-template-columns: 1fr; gap: 56px; }
  #size-guide .sg-hero-media { order: 2; }
  #size-guide .sg-video-card { grid-template-columns: 1fr; }
  #size-guide .sg-stats { grid-template-columns: 1fr; }
  #size-guide .sg-gallery { grid-template-columns: 1fr; }
  #size-guide .sg-steps { grid-template-columns: 1fr; gap: 20px; }
  #size-guide .sg-step { display: flex; gap: 18px; align-items: flex-start; }
  #size-guide .sg-step-num { margin-bottom: 0; flex: none; }
}
@media (max-width: 768px) {
  #size-guide .sg-scroll-hint { display: flex; }
  #size-guide .sg-hero { padding-top: 84px; } /* mobile header is ~50px */
}
@media (max-width: 560px) {
  #size-guide .sg-container { padding: 0 18px; }
  #size-guide .sg-hero-chip { left: 8px; }
  #size-guide .sg-cta-row .sg-btn { flex: 1 1 auto; justify-content: center; }
}