:root {
  --sd-preview-ink: #172225;
  --sd-preview-muted: #5d696d;
  --sd-preview-gold: #c9962f;
  --sd-preview-paper: #f7f5ef;
  --sd-preview-line: rgba(23, 34, 37, 0.18);
}

/* Keep a dedicated gutter for the fixed desktop contact rail. */
@media (min-width: 768px) {
  body.sd-current-improvement-preview {
    padding-inline-end: 4rem;
  }
}

/* Four columns become too narrow before the mobile breakpoint once the rail is present. */
@media (min-width: 768px) and (max-width: 1180px) {
  .sd-easy-guide__facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sd-easy-guide__facts > div {
    border-top: 1px solid rgba(23, 34, 37, 0.13);
  }

  .sd-easy-guide__facts > div:nth-child(-n + 2) {
    border-top: 0;
  }

  .sd-easy-guide__facts > div:nth-child(odd) {
    border-left: 0;
  }
}

.sd-benchmark-kicker {
  margin: 0 0 24px;
  color: var(--sd-preview-gold);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.sd-benchmark-reasons {
  padding: clamp(96px, 11vw, 176px) 0;
  background: #fff;
  color: var(--sd-preview-ink);
}

.sd-benchmark-reasons__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(430px, 0.94fr);
  gap: clamp(64px, 8vw, 128px);
  align-items: start;
}

.sd-benchmark-reasons__photo {
  position: sticky;
  top: 112px;
  margin: 0;
}

.sd-benchmark-reasons__photo::after {
  position: absolute;
  inset: auto -28px -28px 28px;
  z-index: -1;
  height: 48%;
  background: var(--sd-preview-paper);
  content: "";
}

.sd-benchmark-reasons__photo img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.02) brightness(1.04);
}

.sd-benchmark-reasons__photo figcaption {
  margin-top: 14px;
  color: var(--sd-preview-muted);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.sd-benchmark-reasons__body h2,
.sd-benchmark-day h2,
.sd-benchmark-guides h2 {
  margin: 0;
  color: var(--sd-preview-ink);
  font-family: "Noto Serif JP", "Yu Mincho", serif;
  font-size: clamp(38px, 4.2vw, 68px);
  font-weight: 500;
  line-height: 1.42;
  letter-spacing: 0.015em;
}

.sd-benchmark-reasons__list {
  margin: clamp(48px, 6vw, 80px) 0 36px;
  padding: 0;
  border-top: 1px solid var(--sd-preview-line);
  list-style: none;
}

.sd-benchmark-reasons__list li {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 20px;
  padding: 25px 0 27px;
  border-bottom: 1px solid var(--sd-preview-line);
}

.sd-benchmark-reasons__list li > span {
  padding-top: 5px;
  color: var(--sd-preview-gold);
  font-family: Georgia, serif;
  font-size: 15px;
}

.sd-benchmark-reasons__list strong {
  display: block;
  font-size: clamp(19px, 1.5vw, 24px);
  line-height: 1.5;
}

.sd-benchmark-reasons__list p {
  margin: 8px 0 0;
  color: var(--sd-preview-muted);
  font-size: 15px;
  line-height: 1.9;
}

.sd-benchmark-text-link {
  display: inline-flex;
  gap: 26px;
  align-items: center;
  padding-bottom: 8px;
  border-bottom: 1px solid currentColor;
  color: var(--sd-preview-ink);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.sd-benchmark-text-link span {
  color: var(--sd-preview-gold);
  transition: transform 0.25s ease;
}

.sd-benchmark-text-link:hover span { transform: translate(3px, -3px); }

.sd-benchmark-day {
  position: relative;
  display: grid;
  min-height: 820px;
  overflow: hidden;
  background: #101a1d;
  color: #fff;
}

.sd-benchmark-day__photo,
.sd-benchmark-day__photo::after {
  position: absolute;
  inset: 0;
}

.sd-benchmark-day__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 66%;
  filter: saturate(0.6) contrast(1.05);
}

.sd-benchmark-day__photo::after {
  background: linear-gradient(90deg, rgba(10, 20, 23, 0.93) 0%, rgba(10, 20, 23, 0.86) 42%, rgba(10, 20, 23, 0.38) 72%, rgba(10, 20, 23, 0.18) 100%);
  content: "";
}

.sd-benchmark-day__content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(320px, 0.8fr) minmax(430px, 1fr);
  gap: clamp(72px, 10vw, 164px);
  align-items: center;
  padding-top: clamp(100px, 10vw, 150px);
  padding-bottom: clamp(100px, 10vw, 150px);
}

body .sd-benchmark-day h2 { color: #fff !important; }

.sd-benchmark-day header > p:last-child {
  max-width: 470px;
  margin: 30px 0 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 16px;
  line-height: 2;
}

.sd-benchmark-day__timeline {
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.28);
  list-style: none;
}

.sd-benchmark-day__timeline li {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 32px;
  align-items: center;
  min-height: 132px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.28);
}

.sd-benchmark-day__timeline time {
  color: #fff;
  font-family: Georgia, serif;
  font-size: 35px;
  letter-spacing: 0.03em;
}

.sd-benchmark-day__timeline strong,
.sd-benchmark-day__timeline span { display: block; }
.sd-benchmark-day__timeline strong { font-size: 19px; }
.sd-benchmark-day__timeline span { margin-top: 9px; color: rgba(255, 255, 255, 0.65); font-size: 13px; }

.sd-benchmark-guides {
  padding: clamp(100px, 11vw, 176px) 0;
  background: var(--sd-preview-paper);
  color: var(--sd-preview-ink);
}

.sd-benchmark-guides__header {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 60px;
  align-items: end;
  margin-bottom: clamp(60px, 8vw, 108px);
}

.sd-benchmark-guides__header > p {
  max-width: 440px;
  margin: 0 0 12px;
  color: var(--sd-preview-muted);
  font-size: 16px;
  line-height: 2;
}

.sd-benchmark-guides__grid {
  display: grid;
  grid-template-columns: 1.18fr 0.82fr;
  grid-template-rows: repeat(2, minmax(270px, 32vw));
  gap: 18px;
}

.sd-benchmark-guide {
  position: relative;
  display: block;
  overflow: hidden;
  color: #fff;
  text-decoration: none;
}

.sd-benchmark-guide--wide { grid-row: 1 / 3; }

.sd-benchmark-guide::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 18, 20, 0.03) 25%, rgba(10, 18, 20, 0.84) 100%);
  content: "";
}

.sd-benchmark-guide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.04);
  transition: transform 0.8s cubic-bezier(0.22, 1, 0.36, 1), filter 0.5s ease;
}

.sd-benchmark-guide--wide img { object-position: center; }
.sd-benchmark-guide:hover img { transform: scale(1.035); filter: saturate(0.92) contrast(1.02); }

.sd-benchmark-guide > span {
  position: absolute;
  right: clamp(24px, 4vw, 54px);
  bottom: clamp(24px, 4vw, 50px);
  left: clamp(24px, 4vw, 54px);
  z-index: 1;
}

.sd-benchmark-guide small,
.sd-benchmark-guide strong,
.sd-benchmark-guide em { display: block; }
.sd-benchmark-guide small { margin-bottom: 13px; color: #e1b95e; font-family: Georgia, serif; font-size: 13px; }
.sd-benchmark-guide strong { max-width: 520px; font-family: "Noto Serif JP", "Yu Mincho", serif; font-size: clamp(24px, 2.7vw, 43px); font-weight: 500; line-height: 1.5; }
.sd-benchmark-guide em { margin-top: 18px; font-size: 13px; font-style: normal; font-weight: 700; }
.sd-benchmark-guide:not(.sd-benchmark-guide--wide) strong { font-size: clamp(20px, 2vw, 30px); }

@media (max-width: 900px) {
  .sd-benchmark-reasons__layout,
  .sd-benchmark-day__content,
  .sd-benchmark-guides__header { grid-template-columns: 1fr; }
  .sd-benchmark-reasons__photo { position: relative; top: auto; }
  .sd-benchmark-reasons__photo img { aspect-ratio: 4 / 3; }
  .sd-benchmark-day__content { align-content: center; gap: 64px; }
  .sd-benchmark-guides__header { gap: 30px; }
}

@media (max-width: 767px) {
  .sd-benchmark-kicker { margin-bottom: 16px; font-size: 11px; }
  .sd-benchmark-reasons,
  .sd-benchmark-guides { padding: 82px 0; }
  .sd-benchmark-reasons__layout { gap: 58px; }
  .sd-benchmark-reasons__photo::after { inset: auto -16px -16px 18px; }
  .sd-benchmark-reasons__body h2,
  .sd-benchmark-day h2,
  .sd-benchmark-guides h2 { font-size: clamp(31px, 9vw, 42px); line-height: 1.48; }
  .sd-benchmark-reasons__list { margin-top: 42px; }
  .sd-benchmark-reasons__list li { grid-template-columns: 38px 1fr; gap: 12px; padding: 21px 0 23px; }
  .sd-benchmark-reasons__list strong { font-size: 17px; }
  .sd-benchmark-reasons__list p { font-size: 13px; line-height: 1.8; }

  .sd-benchmark-day { min-height: auto; }
  .sd-benchmark-day__photo::after { background: rgba(9, 19, 22, 0.82); }
  .sd-benchmark-day__content { gap: 50px; padding-top: 82px; padding-bottom: 82px; }
  .sd-benchmark-day header > p:last-child { margin-top: 22px; font-size: 14px; line-height: 1.85; }
  .sd-benchmark-day__timeline li { grid-template-columns: 92px 1fr; gap: 16px; min-height: 100px; }
  .sd-benchmark-day__timeline time { font-size: 27px; }
  .sd-benchmark-day__timeline strong { font-size: 16px; }
  .sd-benchmark-day__timeline span { font-size: 12px; }

  .sd-benchmark-guides__header { margin-bottom: 48px; }
  .sd-benchmark-guides__header > p { font-size: 14px; line-height: 1.85; }
  .sd-benchmark-guides__grid { display: block; }
  .sd-benchmark-guide { min-height: 390px; margin-top: 12px; }
  .sd-benchmark-guide:first-child { margin-top: 0; }
  .sd-benchmark-guide:not(.sd-benchmark-guide--wide) { min-height: 300px; }
  .sd-benchmark-guide strong,
  .sd-benchmark-guide:not(.sd-benchmark-guide--wide) strong { font-size: clamp(22px, 6.4vw, 29px); }
}

@media (prefers-reduced-motion: reduce) {
  .sd-benchmark-guide img,
  .sd-benchmark-text-link span { transition: none; }
}