@charset "UTF-8";

/* ==========================================================================
   第一線監督者の集い 開催レポート - スタイルシート
   ========================================================================== */

/* --------------------------------------------------------------------------
   リセット & 基本設定
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-main: #1c3688;
  --color-accent: #e05552;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-bg: #ffffff;
  --color-bg-light: #f8f9fa;
  --color-border: #dee2e6;
  --font-family-base: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  --line-height-base: 1.8;
  --max-width: 960px;
}

html {
  font-size: 62.5%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-base);
  font-size: 1.6rem;
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: bottom;
}

a {
  color: var(--color-main);
  text-decoration: none;
  transition: opacity 0.3s ease;
}

a:hover {
  opacity: 0.7;
}

/* --------------------------------------------------------------------------
   レイアウト
   -------------------------------------------------------------------------- */
.wrapper {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.article {
  padding: 4rem 0 6rem;
}

.section {
  margin-bottom: 5rem;
}

.section:last-child {
  margin-bottom: 0;
}

/* クリアフィックス */
.clearfix::after {
  content: "";
  display: table;
  clear: both;
}

/* --------------------------------------------------------------------------
   ヒーローセクション
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  width: 100%;
  height: 60vh;
  min-height: 400px;
  max-height: 600px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.7) 0%,
    rgba(0, 0, 0, 0.4) 40%,
    rgba(0, 0, 0, 0.2) 70%,
    rgba(0, 0, 0, 0.1) 100%
  );
  z-index: 2;
}

.hero__content {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 4rem 0;
  z-index: 3;
}

.hero__title {
  display: inline-block;
  font-size: 3.2rem;
  font-weight: 700;
  color: var(--color-main);
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
  padding: 0.2rem 2rem;
  background-color: var(--color-bg-light);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.hero__subtitle {
  display: block;
  font-size: 2.6rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.6;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.hero__info {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 3rem;
  margin-top: 2rem;
}

.hero__info-item {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.hero__info-label {
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
  background-color: var(--color-main);
  padding: 0.4rem 1rem;
  border-radius: 3px;
}

.hero__info-value {
  font-size: 1.6rem;
  font-weight: 700;
  color: #fff;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.5);
}

.hero__breadcrumb {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1.2rem 0;
  z-index: 4;
  font-size: 1.3rem;
  color: rgba(255, 255, 255, 0.8);
}

.hero__breadcrumb a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 0.3s ease;
}

.hero__breadcrumb a:hover {
  color: #fff;
  opacity: 1;
}

.hero__breadcrumb span {
  margin: 0 0.5rem;
}

/* --------------------------------------------------------------------------
   見出し
   -------------------------------------------------------------------------- */
.heading-h2 {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-main);
  margin-bottom: 2.5rem;
  padding-bottom: 1.2rem;
  border-bottom: 3px solid var(--color-main);
  position: relative;
}

.heading-h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 80px;
  height: 3px;
  background-color: var(--color-accent);
}

.heading-h3 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
  border-left: 4px solid var(--color-accent);
}

.heading-h3__label {
  display: inline-block;
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
  background-color: var(--color-main);
  padding: 0.3rem 1rem;
  margin-right: 1rem;
  border-radius: 3px;
  vertical-align: middle;
}

.heading-h3__sub {
  display: block;
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--color-text-light);
  margin-top: 0.5rem;
}

/* --------------------------------------------------------------------------
   リード文
   -------------------------------------------------------------------------- */
.section--lead {
  margin-bottom: 4rem;
}

.lead-block {
  max-width: 1000px;
  margin: 0 auto;
}

.lead-block__text {
  font-size: 1.5rem;
  line-height: 2;
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
  text-align: justify;
}

.lead-block__text:last-child {
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   本文
   -------------------------------------------------------------------------- */
.text {
  margin-bottom: 2rem;
}

.text:last-child {
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   画像
   -------------------------------------------------------------------------- */
.figure {
  margin: 2.5rem 0;
}

.figure--main {
  margin: 3rem 0;
}

.figure--main img {
  width: 100%;
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* 回り込み画像 - 右寄せ */
.figure--float-right {
  float: right;
  width: 45%;
  margin: 0 0 2rem 2.5rem;
}

.figure--float-right img {
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* 回り込み画像 - 左寄せ */
.figure--float-left {
  float: left;
  width: 45%;
  margin: 0 2.5rem 2rem 0;
}

.figure--float-left img {
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.figure__caption {
  font-size: 1.3rem;
  color: var(--color-text-light);
  text-align: center;
  margin-top: 0.8rem;
}

/* 2カラムグリッド */
.figure-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin: 2.5rem 0;
}

.figure-grid img {
  width: 100%;
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.figure-grid--4col {
  grid-template-columns: repeat(4, 1fr);
}

/* --------------------------------------------------------------------------
   スライダー
   -------------------------------------------------------------------------- */
.slider {
  display: flex;
  gap: 1rem;
  margin: 2.5rem 0;
  width: 100%;
}

.slider__main {
  flex: 1;
  min-width: 0;
}

.slider__main-img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: opacity 0.3s ease;
}

.slider__thumbs {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 28%;
  flex-shrink: 0;
}

.slider__thumb {
  display: block;
  width: 100%;
  padding: 0;
  border: 3px solid transparent;
  border-radius: 4px;
  background: none;
  cursor: pointer;
  overflow: hidden;
  transition: all 0.3s ease;
  opacity: 0.6;
}

.slider__thumb:hover {
  opacity: 1;
}

.slider__thumb.is-active {
  border-color: var(--color-accent);
  opacity: 1;
}

.slider__thumb img {
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 3;
  object-fit: cover;
  display: block;
}

/* --------------------------------------------------------------------------
   カルーセル（4枚表示）
   -------------------------------------------------------------------------- */
.carousel {
  margin: 2.5rem 0;
}

.carousel__track-wrapper {
  overflow: hidden;
}

.carousel__track {
  display: flex;
  gap: 1rem;
  transition: transform 0.5s ease;
}

.carousel__slide {
  flex: 0 0 calc((100% - 3rem) / 4);
  min-width: 0;
}

.carousel__slide img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.carousel__dots {
  display: flex;
  justify-content: center;
  gap: 0.8rem;
  margin-top: 1.5rem;
}

.carousel__dot {
  width: 1.2rem;
  height: 1.2rem;
  padding: 0;
  background-color: transparent;
  border: 2px solid var(--color-main);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
}

.carousel__dot:hover {
  background-color: rgba(28, 54, 136, 0.3);
}

.carousel__dot.is-active {
  background-color: var(--color-main);
}

/* --------------------------------------------------------------------------
   インタビュー
   -------------------------------------------------------------------------- */
.interview {
  margin-top: 3rem;
}

.interview__item {
  margin-bottom: 2.5rem;
}

.interview__question {
  font-weight: 700;
  color: var(--color-main);
  margin-bottom: 1rem;
  padding-left: 2.5rem;
  position: relative;
}

.interview__question::before {
  content: "Q";
  position: absolute;
  left: 0;
  top: 0;
  padding-bottom: 0.3rem;
  width: 2rem;
  height: 2rem;
  background-color: var(--color-accent);
  color: #fff;
  font-size: 1.2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}





/* --------------------------------------------------------------------------
   ハイライトボックス
   -------------------------------------------------------------------------- */
.highlight-box {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 2rem;
  margin: 2.5rem 0;
}

.highlight-box--accent {
  border-left: 4px solid var(--color-accent);
}

/* --------------------------------------------------------------------------
   フッター
   -------------------------------------------------------------------------- */
.footer {
  background-color: var(--color-main);
  color: #fff;
  padding: 4rem 0 3rem;
  text-align: center;
}

.footer__cta {
  margin-bottom: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.footer__cta-text {
  font-size: 1.6rem;
  margin-bottom: 1.5rem;
}

.footer__btn {
  display: inline-block;
  padding: 1.2rem 3rem;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-main);
  background-color: #fff;
  border-radius: 4px;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.footer__btn:hover {
  opacity: 1;
  background-color: var(--color-accent);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
}

.footer__text {
  font-size: 1.4rem;
  opacity: 0.7;
}

/* --------------------------------------------------------------------------
   スクロールトップボタン
   -------------------------------------------------------------------------- */
.scroll-top {
  position: fixed;
  right: 2rem;
  bottom: 2rem;
  width: 5rem;
  height: 5rem;
  background-color: var(--color-main);
  padding-right: 0.3rem;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  z-index: 1000;
}

.scroll-top.is-visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  background-color: var(--color-accent);
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
}

.scroll-top__arrow {
  display: block;
  width: 1.2rem;
  height: 1.2rem;
  margin: 0 auto;
  border-top: 3px solid #fff;
  border-right: 3px solid #fff;
  transform: rotate(-45deg) translateY(3px);
}

/* --------------------------------------------------------------------------
   アニメーション
   -------------------------------------------------------------------------- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   レスポンシブ
   -------------------------------------------------------------------------- */
@media screen and (max-width: 768px) {
  html {
    font-size: 56.25%;
  }

  .hero {
    height: 50vh;
    min-height: 320px;
  }

  .hero__content {
    padding: 3rem 0;
  }

  .hero__title {
    font-size: 2.2rem;
    padding: 0.6rem 1.5rem;
  }

  .hero__subtitle {
    font-size: 1.6rem;
  }

  .hero__info {
    flex-direction: column;
    gap: 1rem;
    margin-top: 1.5rem;
  }

  .hero__info-label {
    font-size: 1.2rem;
    padding: 0.3rem 0.8rem;
  }

  .hero__info-value {
    font-size: 1.4rem;
  }

  .heading-h2 {
    font-size: 2rem;
  }

  .heading-h3 {
    font-size: 1.8rem;
  }

  .figure--float-right,
  .figure--float-left {
    float: none;
    width: 100%;
    margin: 2rem 0;
  }

  .figure-grid {
    grid-template-columns: 1fr;
  }

  .figure-grid--4col {
    grid-template-columns: repeat(2, 1fr);
  }

  .slider {
    flex-direction: column;
    width: 100%;
  }

  .slider__main {
    width: 100%;
  }

  .slider__thumbs {
    flex-direction: row;
    justify-content: flex-start;
    gap: 0.5rem;
  }

  .slider__thumb {
    width: 22%;
  }

  .carousel__slide {
    flex: 0 0 calc((100% - 1rem) / 2);
  }

  .interview__question,
  .interview__answer {
    padding-left: 2rem;
  }

  .interview__question::before {
    width: 1.6rem;
    height: 1.6rem;
    font-size: 1rem;
  }

  .interview__answer::before {
    left: 0.7rem;
  }
}

@media screen and (max-width: 480px) {
  .wrapper {
    padding: 0 1.5rem;
  }

  .article {
    padding: 3rem 0 4rem;
  }

  .lead-intro {
    padding: 1.5rem;
  }
}