/**
 * Scroll-to-top button styles
 *
 * @package c-mo-site-v2
 */

.cmo-scroll-top {
  position: fixed;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: none;
  background: var(--cmo-scroll-top-bg, var(--cmo-color-main, #1f2937));
  color: #fff;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.cmo-scroll-top:hover {
  background: var(--cmo-scroll-top-bg-hover, var(--cmo-scroll-top-bg, var(--cmo-color-main, #111827)));
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
  transform: translateY(-2px);
}

.cmo-scroll-top:active {
  transform: translateY(0);
}

/* Display mode: float (default) — fixed bottom-right */
.cmo-scroll-top--float {
  position: fixed;
  bottom: var(--cmo-scroll-top-offset, 20px);
  right: 20px;
}

/* スマホフッターナビ表示時は float ボタンをナビの上へ逃がす（重なり回避）。
   ナビ高さは内容（1〜2行ラベル/マイクロコピー）で変わるため、実高を JS が
   --cmo-fmn-height に書き込む。JS 前/無効時は既定値でフォールバックする。 */
@media (max-width: 767px) {
  body.cmo-has-footer-mobile-nav {
    --cmo-fmn-height: 88px;
  }
  body.cmo-has-footer-mobile-nav .cmo-scroll-top--float {
    bottom: calc(var(--cmo-fmn-height) + 24px);
  }
}

/* Display mode: footer — positioned above .cmo-footer */
.cmo-scroll-top-footer-wrap {
  position: relative;
}
.cmo-scroll-top--footer {
  position: absolute;
  top: 0;
  transform: translateY(calc(-100% - var(--cmo-scroll-top-offset, 20px)));
}
.cmo-scroll-top--footer-right {
  right: 20px;
}
.cmo-scroll-top--footer-center {
  left: 50%;
  transform: translateX(-50%) translateY(calc(-100% - var(--cmo-scroll-top-offset, 20px)));
}

/* Footer mode: preserve positioning transform on hover/active */
.cmo-scroll-top--footer:hover {
  transform: translateY(calc(-100% - var(--cmo-scroll-top-offset, 20px) - 2px));
}
.cmo-scroll-top--footer:active {
  transform: translateY(calc(-100% - var(--cmo-scroll-top-offset, 20px)));
}
.cmo-scroll-top--footer-center:hover {
  transform: translateX(-50%) translateY(calc(-100% - var(--cmo-scroll-top-offset, 20px) - 2px));
}
.cmo-scroll-top--footer-center:active {
  transform: translateX(-50%) translateY(calc(-100% - var(--cmo-scroll-top-offset, 20px)));
}

/* Style variants */
.cmo-scroll-top--simple {
  width: 50px;
  height: 50px;
  border-radius: 50%;
}

.cmo-scroll-top--simple .cmo-scroll-top__icon {
  font-size: 24px;
  line-height: 1;
}

/* --- simple-arrow: 円形 + 上矢印SVG --- */
/* 丸の塗りは背景色ピッカー（--cmo-scroll-top-bg → base .cmo-scroll-top が解決）、
   矢印は文字色ピッカー（color → currentColor）に追従する。simple と同じ塗り系。
   背景色なし時は base のスキンメインカラー、文字色なし時は白矢印。 */
.cmo-scroll-top--simple-arrow {
  width: 50px;
  height: 50px;
  border-radius: 50%;
}

.cmo-scroll-top--simple-arrow .cmo-scroll-top__svg {
  width: 14px;
  height: auto;
  display: block;
  fill: currentColor;
}

.cmo-scroll-top--text {
  padding: 10px 20px;
  border-radius: 25px;
  gap: 5px;
}

.cmo-scroll-top--text .cmo-scroll-top__icon {
  font-size: 18px;
  line-height: 1;
}

.cmo-scroll-top--text .cmo-scroll-top__text {
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
}

/* Image style */
.cmo-scroll-top--image {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  overflow: hidden;
  padding: 0;
  background: transparent;
  border: none;
}

.cmo-scroll-top--image .cmo-scroll-top__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 50%;
}

.cmo-scroll-top--image:hover {
  background: transparent;
  transform: translateY(-2px);
}

.cmo-scroll-top--image:hover .cmo-scroll-top__image {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.cmo-scroll-top--image:active {
  transform: translateY(0);
}

/* --- minimal: 背景・影なし --- */
.cmo-scroll-top--minimal {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: transparent;
  box-shadow: none;
  color: #666;
}
.cmo-scroll-top--minimal .cmo-scroll-top__icon {
  font-size: 28px;
  line-height: 1;
}
.cmo-scroll-top--minimal:hover {
  background: transparent;
  box-shadow: none;
  color: #333;
  transform: translateY(-3px);
}

/* --- outline: 枠線のみ円形 --- */
.cmo-scroll-top--outline {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: transparent;
  border: 2px solid #666;
  color: #666;
  box-shadow: none;
}
.cmo-scroll-top--outline .cmo-scroll-top__icon {
  font-size: 24px;
  line-height: 1;
}
.cmo-scroll-top--outline:hover {
  background: #666;
  color: #fff;
  box-shadow: none;
  transform: translateY(-2px);
}

/* --- text-vertical: 矢印+テキスト縦配置 --- */
.cmo-scroll-top--text-vertical {
  flex-direction: column;
  align-items: center;
  background: transparent;
  color: #666;
  box-shadow: none;
  padding: 0;
  gap: 0;
}
.cmo-scroll-top--text-vertical .cmo-scroll-top__icon {
  position: relative;
  width: 10px;
  height: 7px;
}
.cmo-scroll-top--text-vertical .cmo-scroll-top__icon::before,
.cmo-scroll-top--text-vertical .cmo-scroll-top__icon::after {
  content: "";
  position: absolute;
  top: 2px;
  width: 6px;
  height: 1px;
  background: currentColor;
}
.cmo-scroll-top--text-vertical .cmo-scroll-top__icon::before {
  left: 0;
  transform: rotate(-40deg);
  transform-origin: left center;
}
.cmo-scroll-top--text-vertical .cmo-scroll-top__icon::after {
  right: 0;
  transform: rotate(40deg);
  transform-origin: right center;
}
.cmo-scroll-top--text-vertical .cmo-scroll-top__text {
  margin-top: 10px;
  font-size: 24px;
  font-family: "Helvetica Neue", Helvetica, "Arial Narrow", Arial, sans-serif;
  letter-spacing: 0.04em;
  writing-mode: vertical-rl;
  text-orientation: sideways;
  line-height: 1;
}
.cmo-scroll-top--text-vertical:hover {
  background: transparent;
  box-shadow: none;
  color: #333;
  transform: translateY(-3px);
}

/* --- line-arrow: 縦ライン+テキスト縦書き --- */
.cmo-scroll-top--line-arrow {
  flex-direction: column;
  align-items: center;
  background: transparent;
  color: #666;
  box-shadow: none;
  padding: 0;
  gap: 0;
  width: auto;
}
.cmo-scroll-top--line-arrow .cmo-scroll-top__line {
  position: relative;
  width: 1px;
  height: 130px;
}
.cmo-scroll-top--line-arrow .cmo-scroll-top__line::before {
  content: "";
  position: absolute;
  top: 8px;
  left: -6px;
  width: 8px;
  height: 1px;
  background: currentColor;
  transform: translate(0, -3px) rotate(45deg);
  transform-origin: right center;
}
.cmo-scroll-top--line-arrow .cmo-scroll-top__line::after {
  content: "";
  position: absolute;
  top: 0;
  left: -4px;
  width: 1px;
  height: 100%;
  background: currentColor;
}
.cmo-scroll-top--line-arrow .cmo-scroll-top__text {
  margin-top: 12px;
  font-size: 13px;
  font-family: "Helvetica Neue", Helvetica, "Arial Narrow", Arial, sans-serif;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
  text-orientation: sideways;
  line-height: 1;
}
.cmo-scroll-top--line-arrow:hover {
  background: transparent;
  box-shadow: none;
  color: #333;
}

/* Footer mode overrides for style variants with custom hover transform */
.cmo-scroll-top--footer.cmo-scroll-top--minimal:hover,
.cmo-scroll-top--footer.cmo-scroll-top--text-vertical:hover {
  transform: translateY(calc(-100% - var(--cmo-scroll-top-offset, 20px) - 3px));
}
.cmo-scroll-top--footer-center.cmo-scroll-top--minimal:hover,
.cmo-scroll-top--footer-center.cmo-scroll-top--text-vertical:hover {
  transform: translateX(-50%) translateY(calc(-100% - var(--cmo-scroll-top-offset, 20px) - 3px));
}
.cmo-scroll-top--footer.cmo-scroll-top--line-arrow:hover {
  transform: translateY(calc(-100% - var(--cmo-scroll-top-offset, 20px)));
}
.cmo-scroll-top--footer-center.cmo-scroll-top--line-arrow:hover {
  transform: translateX(-50%) translateY(calc(-100% - var(--cmo-scroll-top-offset, 20px)));
}

/* Color theme: light */
.cmo-scroll-top--light {
  background: #ffffff;
  color: #333;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}
.cmo-scroll-top--light:hover {
  background: #f5f5f5;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Light + transparent-bg styles (minimal, text-vertical, line-arrow) */
.cmo-scroll-top--light.cmo-scroll-top--minimal,
.cmo-scroll-top--light.cmo-scroll-top--text-vertical,
.cmo-scroll-top--light.cmo-scroll-top--line-arrow {
  background: transparent;
  color: #fff;
  box-shadow: none;
}
.cmo-scroll-top--light.cmo-scroll-top--minimal:hover,
.cmo-scroll-top--light.cmo-scroll-top--text-vertical:hover,
.cmo-scroll-top--light.cmo-scroll-top--line-arrow:hover {
  background: transparent;
  color: rgba(255, 255, 255, 0.7);
  box-shadow: none;
}

/* Light + outline */
.cmo-scroll-top--light.cmo-scroll-top--outline {
  background: transparent;
  border-color: #fff;
  color: #fff;
  box-shadow: none;
}
.cmo-scroll-top--light.cmo-scroll-top--outline:hover {
  background: #fff;
  color: #333;
  box-shadow: none;
}

/* Light + image */
.cmo-scroll-top--light.cmo-scroll-top--image {
  background: transparent;
  box-shadow: none;
}
.cmo-scroll-top--light.cmo-scroll-top--image:hover {
  background: transparent;
}

/* Trigger: on scroll */
.cmo-scroll-top--on-scroll {
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.3s ease,
    visibility 0.3s ease,
    transform 0.3s ease,
    background 0.3s ease,
    box-shadow 0.3s ease;
}

/* Responsive */
@media (max-width: 768px) {
  .cmo-scroll-top--float {
    bottom: var(--cmo-scroll-top-offset, 15px);
    right: 15px;
  }

  .cmo-scroll-top--footer-right {
    right: 15px;
  }

  .cmo-scroll-top--simple {
    width: 44px;
    height: 44px;
  }

  .cmo-scroll-top--simple .cmo-scroll-top__icon {
    font-size: 20px;
  }

  .cmo-scroll-top--text {
    padding: 8px 16px;
  }

  .cmo-scroll-top--text .cmo-scroll-top__icon {
    font-size: 16px;
  }

  .cmo-scroll-top--text .cmo-scroll-top__text {
    font-size: 12px;
  }

  .cmo-scroll-top--minimal,
  .cmo-scroll-top--outline {
    width: 44px;
    height: 44px;
  }

  .cmo-scroll-top--text-vertical .cmo-scroll-top__text {
    font-size: 20px;
  }

  .cmo-scroll-top--line-arrow .cmo-scroll-top__line {
    height: 112px;
  }
}