/* ============================================================
   Base
============================================================ */
:root {
  --bg: #f5f7fb;
  --bg-card: #ffffff;
  --text: #1f2933;
  --muted: #6b7280;
  --brand: #2563eb;
  --brand-soft: #dbeafe;
  --accent: #f97316;

  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;

  --card-shadow: 0 12px 40px rgba(15, 23, 42, 0.12);
}

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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Noto Sans JP", sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* ============================================================
   Layout
============================================================ */
.section {
  padding: 40px 16px;
}

.container {
  max-width: 960px;
  margin: 0 auto;
}

/* ============================================================
   Header
============================================================ */
header {
  background-color: #ffffff;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
  position: sticky;
  top: 0;
  z-index: 100;
}

header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
}

.logo-area {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo-icon {
  height: 40px;
  width: auto;
}

/* ナビゲーション */
.nav-menu {
  list-style: none;
  display: flex;
  gap: 16px;
  margin: 0;
  padding: 0;
}

.nav-menu a {
  text-decoration: none;
  color: var(--text);
  font-size: 0.95rem;
  padding: 8px 10px;
  border-radius: 999px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-menu a:hover {
  background-color: var(--brand-soft);
  color: var(--brand);
}

/* ドロップダウン */
.dropdown {
  position: relative;
}

.dropdown > a::after {
  content: "▼";
  font-size: 0.65em;
  margin-left: 4px;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  background-color: #ffffff;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.18);
  border-radius: 14px;
  padding: 8px 0;
  list-style: none;
  margin: 0;
  min-width: 180px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s ease;
  z-index: 200;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu li a {
  display: block;
  padding: 8px 16px;
  font-size: 0.9rem;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}

.dropdown-menu li a:hover {
  background-color: var(--brand-soft);
  color: var(--brand);
}

/* ハンバーガーボタン（スマホ） */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: #111827;
  margin: 4px 0;
  transition: 0.3s;
}

/* ============================================================
   Hero
============================================================ */
.hero {
  padding: 80px 16px 60px;
  display: flex;
  justify-content: center;
}

.hero-inner {
  max-width: 720px;
  text-align: center;
  background: radial-gradient(circle at top left, #dbeafe, #eff6ff);
  border-radius: 32px;
  padding: 40px 20px 44px;
  box-shadow: 0 18px 60px rgba(15, 23, 42, 0.2);
}

.hero-logo {
  width: 220px;
  max-width: 60%;
  height: auto;
  margin-bottom: 20px;
}

.hero h2 {
  font-size: 2.2rem;
  margin: 0 0 16px;
  line-height: 1.35;
}

.hero h2 .accent {
  color: var(--brand);
}

.hero p {
  margin: 0;
  font-size: 1.05rem;
  color: #111827;
}

/* ============================================================
   Sections Common
============================================================ */
.section h3 {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.4rem;
  margin: 0 0 1.2rem;
}

.title-icon {
  width: 26px;
  height: 26px;
}

.subtitle-icon {
  width: 22px;
  height: 22px;
}

/* 汎用ボタン */
.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 999px;
  background-color: var(--brand);
  color: #ffffff;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.1s ease;
}

.btn:hover {
  background-color: #1d4ed8;
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
  transform: translateY(-1px);
}

/* コンテンツブロック（カード） */
.value-list {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.value-item {
  background-color: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 18px 16px 20px;
  box-shadow: 0 14px 40px rgba(15, 23, 42, 0.16);
}

.value-item h4 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
}

/* ============================================================
   CEO / Profile
============================================================ */
.ceo-profile {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 24px;
  align-items: center;
  background-color: var(--bg-card);
  border-radius: 24px;
  padding: 20px;
  box-shadow: var(--card-shadow);
}

/* 代表写真の丸枠（切り抜き用） */
.ceo-photo-wrap {
  width: 120px;
  height: 120px;
  border-radius: 999px;
  overflow: hidden;
}

/* 中の画像：ズームして、枠の中で右寄せになるようにずらす */
.ceo-photo {
  width: 120%;
  height: auto;
  object-fit: cover;
  transform: translateX(-25%);  /* ← 左にずらす = 顔は枠の中で右寄りに見える */
}




/* ============================================================
   Project list
============================================================ */
.project-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.project-list li {
  padding: 10px 14px;
  border-radius: 999px;
  background-color: #ffffff;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.12);
  font-size: 0.95rem;
}

/* ============================================================
   Footer
============================================================ */
footer {
  margin-top: 40px;
  padding: 24px 16px 32px;
  background-color: #0f172a;
  color: #e5e7eb;
}

footer .container {
  max-width: 960px;
  margin: 0 auto;
}

.sitemap {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 14px;
}

.sitemap-group h4 {
  margin: 0 0 8px;
  font-size: 0.95rem;
  color: #e5e7eb;
}

.sitemap-group ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sitemap-group li {
  margin-bottom: 4px;
}

.sitemap-group a {
  color: #cbd5f5;
  text-decoration: none;
  font-size: 0.9rem;
}

.sitemap-group a:hover {
  text-decoration: underline;
}

footer small {
  font-size: 0.8rem;
  color: #9ca3af;
}

/* ============================================================
   Back-to-top Button
============================================================ */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 999px;
  background-color: #0f172a;
  color: #e5e7eb;
  text-decoration: none;
  font-size: 0.8rem;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.back-to-top.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* ============================================================
   Fade-in Animation
============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(12px);
  animation: fadeInUp 0.6s ease forwards;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================================
   Responsive
============================================================ */
.sp-only {
  display: none;
}

@media (max-width: 768px) {
  .section {
    padding: 32px 16px;
  }

  .container {
    max-width: 100%;
  }

  .hero {
    padding: 64px 16px 40px;
  }

  .hero-inner {
    padding: 28px 18px 32px;
  }

  .hero h2 {
    font-size: 1.7rem;
  }

  .value-list {
    grid-template-columns: 1fr;
  }

  .ceo-profile {
    grid-template-columns: 1fr;
  }

  .sp-only {
    display: inline;
  }

  /* ハンバーガーメニュー表示 */
  .hamburger {
    display: block;
  }

  /* PCナビは非表示 */
  .nav-menu {
    display: none;
  }

  /* スマホ用ナビ展開 */
  #nav-menu.open .nav-menu {
    display: flex;
    flex-direction: column;
    margin-top: 12px;
    background-color: #ffffff;
    padding: 10px 12px 12px;
    border-radius: 18px;
    box-shadow: 0 14px 40px rgba(15, 23, 42, 0.18);
  }

  #nav-menu.open .nav-menu li {
    margin-bottom: 4px;
  }

  header .container {
    flex-direction: column;
    align-items: stretch;
  }
}

/* ============================================================
   About page
============================================================ */
main.about-main {
  padding-top: 20px;
}

.about-hero {
  margin-bottom: 32px;
}

.about-hero .lead {
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

/* 段落間の余白 */
.about-main p {
  margin: 0 0 0.9rem;
}

/* 段落のまとまり */
.about-block {
  background-color: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 18px 18px 16px;
  box-shadow: 0 14px 40px rgba(15, 23, 42, 0.16);
  margin-bottom: 24px;
}

/* 見出し */
.about-main h2 {
  font-size: 1.5rem;
  margin: 1.4rem 0 0.8rem;
}

.about-main h3 {
  font-size: 1.2rem;
  margin: 1.1rem 0 0.6rem;
}

/* 団体概要テーブル */
.about-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.6rem 0 0.3rem;
  font-size: 0.95rem;
}

.about-table th,
.about-table td {
  padding: 6px 8px;
  vertical-align: top;
}

.about-table th {
  width: 26%;
  text-align: left;
  font-weight: 600;
  color: #374151;
}

.about-table td {
  width: 74%;
}

/* ビジョン図エリア */
.vision-diagram {
  margin: 1.2rem 0 0.4rem;
  padding: 12px 10px 10px;
  border-radius: 18px;
  background: linear-gradient(135deg, #dbeafe, #eff6ff);
}

.vision-diagram h4 {
  margin: 0 0 0.6rem;
  font-size: 1rem;
}

.vision-diagram p {
  margin: 0 0 0.4rem;
  font-size: 0.92rem;
}

/* CEO/代表紹介カードを流用しつつ微調整 */
.about-main .ceo-profile {
  margin-bottom: 24px;
}

/* Visionの説明用リスト */
.vision-steps {
  list-style: none;
  margin: 0.2rem 0 0;
  padding: 0;
}

.vision-steps li {
  margin-bottom: 0.3rem;
  padding-left: 1.2rem;
  position: relative;
  font-size: 0.94rem;
}

.vision-steps li::before {
  content: "●";
  position: absolute;
  left: 0;
  font-size: 0.55rem;
  top: 0.45rem;
}

/* 代表・CEO セクションタイトルの余白調整 */
.about-main .section h3 {
  margin-top: 1.6rem;
}

/* smaller screens for about */
@media (max-width: 768px) {
  .about-block {
    padding: 16px 14px 14px;
  }

  .about-table th,
  .about-table td {
    display: block;
    width: 100%;
    padding: 4px 0;
  }

  .about-table th {
    margin-top: 0.4rem;
  }

  .vision-diagram {
    padding: 10px 10px 8px;
  }
}

/* ============================================================
   Philosophy page
============================================================ */

.philo-main {
  padding-top: 20px;
}

.philo-main p {
  margin: 0 0 0.9rem;
}

.philo-block {
  background-color: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 18px 18px 16px;
  box-shadow: 0 14px 40px rgba(15, 23, 42, 0.16);
  margin-bottom: 24px;
}

/* Philosophy 用のリスト */
.philo-main ul {
  margin: 0.4rem 0 0.2rem;
  padding-left: 1.2rem;
}

/* 重要度を少しだけ強調する */
.philo-main strong {
  font-weight: 600;
}

/* ============================================================
   Contact page
============================================================ */

.contact-main {
  padding-top: 20px;
}

.contact-main p {
  margin: 0 0 0.8rem;
}

/* 簡易フォーム風ボックス */
.contact-box {
  background-color: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 18px 18px 16px;
  box-shadow: 0 14px 40px rgba(15, 23, 42, 0.16);
  margin-top: 12px;
}

/* リスト形式の連絡手段 */
.contact-list {
  list-style: none;
  margin: 0.4rem 0 0;
  padding: 0;
}

.contact-list li {
  margin-bottom: 0.4rem;
}

/* ============================================================
   Hero inner responsive typography
============================================================ */
@media (max-width: 480px) {
  .hero h2 {
    font-size: 1.5rem;
  }

  .hero-inner {
    padding: 22px 14px 26px;
  }
}

/* Vision timeline-like list */
.vision-ol {
  counter-reset: vision-step;
  list-style: none;
  margin: 0.4rem 0 0.2rem;
  padding: 0;
}

.vision-ol li {
  counter-increment: vision-step;
  margin-bottom: 0.5rem;
  padding-left: 1.4rem;
  position: relative;
  font-size: .94rem;
}

.vision-ol li::before {
  content: counter(vision-step) ".";
  position: absolute;
  left: 0;
  top: 0.1rem;
  font-weight: 600;
  color: var(--brand);
}

/* narrower devices */
@media (max-width: 920px) {
  .hero-logo{
    max-width: 72%;
  }
  .ceo-profile{
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .hero{
    padding-top: 52px;
  }
  .hero h2{
    font-size: 1.35rem;
  }
  .section{
    padding-inline: 12px;
  }
  .value-item{
    padding-inline: 14px;
  }
  .ceo-profile{
    padding-inline: 14px;
  }
  .project-list li{
    border-radius: 18px;
  }
  .vision-diagram{
    border-radius: 18px;
  }
  .ceo-photo{
    width: 100px;
    height: 100px;
  }
}

/* ============================================
   About page additional responsive tweaks
============================================ */
@media (max-width: 480px) {
  .about-main h2{
    font-size: 1.35rem;
  }
  .about-main h3{
    font-size: 1.05rem;
  }
  .about-block{
    padding-inline: 12px;
  }
  .about-table{
    font-size: .9rem;
  }
  .vision-steps li{
    font-size: .9rem;
  }
}

/* ============================================
   Vision layout fine-tuning
============================================ */
.vision-diagram-cols{
  display: grid;
  grid-template-columns: 1.2fr 1.3fr;
  gap: .75rem;
  align-items: stretch;
}

.vision-diagram-box{
  background-color: rgba(255,255,255,.8);
  border-radius: 18px;
  padding: .55rem .7rem;
  font-size: .92rem;
}

.vision-diagram-box h5{
  margin: 0 0 .3rem;
  font-size: .95rem;
}

.vision-diagram-box p{
  margin: 0;
}

/* small devices */
@media (max-width: 768px) {
  .vision-diagram-cols{
    grid-template-columns: 1fr;
  }
  .vision-diagram-box{
    font-size: .9rem;
  }
}

@media (max-width: 480px) {
  .vision-diagram{
    padding-inline: 10px;
  }
  .vision-diagram-box{
    border-radius: 16px;
  }
}

/* ============================================================== */
/* Contact page: card spacing tweaks */
/* ============================================================== */

.contact-box h4{
  margin-top: 0;
  margin-bottom: .4rem;
}

.contact-box p:last-child{
  margin-bottom: 0;
}

/* Top hero alignment small devices */
@media (max-width: 360px) {
  .hero-inner{
    padding-inline: 10px;
  }
  .hero h2{
    font-size: 1.3rem;
  }
}

/* we keep UL defaults inside content but slightly adjust spacing */
.section ul{
  margin-top: .3rem;
  margin-bottom: .4rem;
}

.section li{
  padding-left: .5rem;
}

/* Philosophy page extra small layout */
@media (max-width: 480px) {
  .philo-block{
    padding-inline: 12px;
  }
  .project-list{
    row-gap: .4rem;
  }
  .project-list li{
    padding-block: 8px;
    padding-inline: 10px;
    border-radius: 16px;
    font-size: .9rem;
  }
  .ceo-profile{
    gap: 18px;
  }
  .ceo-photo{
    width: 96px;
    height: 96px;
  }
  .vision-diagram-box{
    padding: .45rem .6rem;
  }
  .vision-ol li{
    font-size: .9rem;
  }
  .vision-ol li::before{
    top: .15rem;
  }
  .hero-logo{
    max-width: 82%;
  }
  .section{
    padding-block: 28px;
  }
}

/* further fine tune on mid range */
@media (min-width: 768px) and (max-width: 1024px) {
  .container{
    max-width: 840px;
  }
  .hero-inner{
    max-width: 640px;
  }
  .value-item{
    padding-inline: 16px;
  }
  .ceo-profile{
    padding-inline: 18px;
  }
  .project-list li{
    padding-inline: 14px;
  }
  .vision-diagram{
    padding-inline: 14px;
  }
  .vision-diagram-cols{
    gap: .85rem;
  }
  .vision-diagram-box{
    font-size: .93rem;
  }
  .vision-ol{
    row-gap: .3rem;
  }
}

/* end */


/* ==============================
   Top Page - News ＆ Release
   ============================== */

.news-top-list,
.news-top-list li,
.news-top-item {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* News一覧（Top用の1〜数件表示） */
.news-top-list {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

/* 各Newsカード */
.news-top-item a {
  display: block;
  padding: 16px 20px;
  background: #fff;
  border-radius: 1rem;
  box-shadow: var(--card-shadow);
  text-decoration: none;
  color: var(--text);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.news-top-item a:hover {
  box-shadow: 0 6px 16px rgba(0, 0, 0, .08);
  transform: translateY(-2px);
}

/* 日付 */
.news-top-date {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 4px;
}

/* タイトル */
.news-top-title {
  font-size: 1.05rem;
  line-height: 1.5;
}

/* スマホ向け微調整 */
@media (max-width: 768px) {
  .news-top-item a {
    padding: 14px 16px;
  }

  .news-top-title {
    font-size: 1rem;
  }
}

/* ==============================
   Top Page - News Tile Layout
============================== */

.news-top-tile {
  background: #fff;
  border-radius: 1.2rem;
  padding: 24px 24px 28px;
  box-shadow: var(--card-shadow);
  margin-top: 20px;
}

/* ボタンエリア */
.news-top-btn-area {
  margin-top: 20px;
  text-align: left; /* または center にしたければ center */
}

/* タイル内のリスト */
.news-top-list,
.news-top-list li,
.news-top-item {
  list-style: none;
  margin: 0;
  padding: 0;
}

.news-top-list {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

/* 各Newsカード */
.news-top-item a {
  display: block;
  padding: 16px 20px;
  background: #fff;
  border-radius: 1rem;
  box-shadow: 0 6px 20px rgba(0,0,0,0.05);
  text-decoration: none;
  color: var(--text);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.news-top-item a:hover {
  box-shadow: 0 8px 26px rgba(0,0,0,0.09);
  transform: translateY(-2px);
}

.news-top-date {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 4px;
}

.news-top-title {
  font-size: 1.05rem;
  line-height: 1.5;
}

@media (max-width: 768px) {
  .news-top-tile {
    padding: 18px 16px 22px;
  }
}