/* ============================================
   NPO Homepage - Main Stylesheet
   参考: 日本NPOセンター (jnpoc.ne.jp)
   ============================================ */

/* --- CSS Variables --- */
:root {
  --color-primary: #004098;
  --color-primary-dark: #003380;
  --color-secondary: #198cd2;
  --color-accent: #E8A317;
  --color-base: #ffffff;
  --color-text: #1A202C;
  --color-text-sub: #4A5568;
  --color-text-light: #94A3B8;
  --color-border: #E2E8F0;
  --color-bg-light: #F8FAFC;
  --color-bg-section: #f1f7f9;
  --color-success: #38A169;
  --color-error: #E53E3E;
  --font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Meiryo", "Yu Gothic", sans-serif;
  --max-width: 1200px;
  --content-width: 850px;
  --header-height: auto;
  --transition: 0.2s ease;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-lg: 0 4px 16px rgba(0,0,0,0.08);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
}

/* --- Skip Link --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 9999;
  background: #004098;
  color: white;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 16px;
  color: white;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-base);
  line-height: 1.8;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-wrap: break-word;
  word-break: break-word;
}

html, body {
  overflow-x: hidden;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-secondary);
}

/* --- Focus Visible --- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

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

ul, ol {
  list-style: none;
}

/* --- Utility --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.container--narrow {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 24px;
}

.container .container--narrow {
  padding: 0;
}

.section {
  padding: 96px 0;
}

.section--gray {
  background: var(--color-bg-light);
}

.section--primary {
  background: linear-gradient(135deg, #003380 0%, #004098 50%, #198cd2 100%);
  color: var(--color-base);
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

.section-title--white {
  color: var(--color-base);
}

.section-subtitle {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  text-align: center;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.section-desc {
  text-align: center;
  color: var(--color-text-sub);
  max-width: 640px;
  margin: 0 auto 48px;
  line-height: 1.9;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.mt-0 { margin-top: 0; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mb-0 { margin-bottom: 0; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }

/* --- Visually Hidden (screen reader only) --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ============================================
   MISSION SECTION
   ============================================ */
.mission-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-top: 48px;
}

.mission-heading {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.mission-text {
  color: var(--color-text-sub);
  line-height: 1.9;
}

.mission-text + .mission-heading {
  margin-top: 24px;
}

/* ============================================
   CHAIRMAN GREETING SECTION
   ============================================ */
.chairman-greeting {
  display: flex;
  gap: 48px;
  align-items: center;
  margin-top: 48px;
}

.chairman-photo {
  flex-shrink: 0;
  width: 280px;
}

.chairman-photo__img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  object-fit: cover;
  aspect-ratio: 4 / 5;
}

.chairman-photo__caption {
  text-align: center;
  margin-top: 16px;
  font-size: 0.875rem;
  color: var(--color-text-sub);
}

.chairman-photo__name {
  display: block;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  margin-top: 4px;
}

.chairman-body {
  flex: 1;
}

.chairman-body__title {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--color-secondary);
}

.chairman-body__text {
  color: var(--color-text-sub);
  line-height: 2;
  font-size: 0.975rem;
}

.chairman-body__text p + p {
  margin-top: 16px;
}

.chairman-body__placeholder {
  background: var(--color-bg-light);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: 40px 32px;
  text-align: center;
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* Chairman Profile (略歴) */
.chairman-profile {
  margin-top: 48px;
  padding-top: 40px;
  border-top: 2px solid var(--color-secondary);
}

.chairman-profile__heading {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 24px;
}

.chairman-profile__inner {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.chairman-profile__img {
  max-width: 140px;
  width: 100%;
  border-radius: var(--radius-lg);
  flex-shrink: 0;
}

.chairman-profile__name {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.chairman-profile__ruby {
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--color-text-sub);
  margin-left: 12px;
}

.chairman-profile__title {
  color: var(--color-text-sub);
  font-size: 0.875rem;
  margin-bottom: 20px;
}

.chairman-profile__label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.chairman-profile__list {
  list-style: none;
  padding: 0;
  font-size: 0.875rem;
  line-height: 2;
  color: var(--color-text);
  margin-bottom: 20px;
}

.chairman-profile__list--last {
  margin-bottom: 0;
}

@media (max-width: 782px) {
  .chairman-greeting {
    flex-direction: column;
    align-items: center;
    gap: 32px;
  }

  .chairman-photo {
    width: 220px;
  }

  .chairman-body__title {
    text-align: center;
  }

  .chairman-profile__inner {
    flex-direction: column;
    align-items: center;
  }

  .chairman-profile__img {
    max-width: 160px;
  }

  .chairman-profile__detail {
    width: 100%;
  }

  .chairman-profile__name {
    text-align: center;
  }

  .chairman-profile__ruby {
    display: block;
    margin-left: 0;
    margin-top: 4px;
  }

  .chairman-profile__title {
    text-align: center;
  }
}

/* ============================================
   NEWSLETTER BANNER
   ============================================ */
.newsletter-banner {
  background: linear-gradient(135deg, #003380 0%, #004098 100%);
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
  color: white;
}

.newsletter-banner__title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.newsletter-banner__desc {
  margin-bottom: 24px;
  opacity: 0.9;
}

.newsletter-banner__form {
  max-width: 500px;
  margin: 0 auto;
  display: flex;
  gap: 8px;
}

.newsletter-banner__input {
  flex: 1;
  padding: 12px 16px;
  border-radius: var(--radius-full);
  border: none;
  font-size: 0.9375rem;
  font-family: var(--font-family);
}

.newsletter-banner__input:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ============================================
   ABOUT PAGE: LINK CARD GRID
   ============================================ */
.link-card-grid {
  display: grid;
  gap: 24px;
  margin-top: 48px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   ORGANIZATION PAGE
   ============================================ */
.data-table tbody th {
  width: 200px;
  padding: 12px 16px;
  font-size: 0.875rem;
  font-weight: 600;
  background: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.timeline-heading {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-top: 64px;
  margin-bottom: 24px;
}

.data-table .list-disc {
  list-style: disc;
  padding-left: 24px;
  margin-top: 8px;
}

/* ============================================
   CONTACT PAGE
   ============================================ */
.form-intro {
  text-align: center;
  color: var(--color-text-sub);
  margin-bottom: 48px;
}

.form-container {
  max-width: 700px;
  margin: 0 auto;
}

.form-label .optional {
  font-size: 0.75rem;
  color: var(--color-text-light);
  margin-left: 6px;
}

.form-submit-group {
  text-align: center;
  margin-top: 32px;
}

.form-note {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-top: 24px;
}

/* ============================================
   HEADER
   ============================================ */

/* Utility Bar */
.utility-bar {
  display: none;
}

.utility-bar .container {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 20px;
}

.utility-bar a {
  color: rgba(255,255,255,0.85);
  font-size: 0.8125rem;
  transition: color var(--transition);
}

.utility-bar a:hover {
  color: #ffffff;
}

.utility-bar__sns {
  display: flex;
  gap: 12px;
  align-items: center;
}

.utility-bar__sns a {
  display: flex;
  align-items: center;
  gap: 4px;
}

.btn-mail-magazine {
  background: var(--color-accent);
  color: #fff !important;
  padding: 3px 14px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.btn-mail-magazine:hover {
  background: #DD6B20;
  color: #fff !important;
}

/* Main Header */
.main-header {
  background: var(--color-base);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

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

.header-logo {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-logo__img {
  height: 48px;
  width: auto;
}

.header-logo__text {
  display: flex;
  flex-direction: column;
}

.header-logo__name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
}

.header-logo__tagline {
  font-size: 0.6875rem;
  color: var(--color-text-sub);
  line-height: 1.4;
}

.header-search {
  display: none;
}

.header-search input {
  border: 1px solid var(--color-border);
  border-radius: 20px 0 0 20px;
  padding: 8px 16px;
  font-size: 0.875rem;
  width: 200px;
  outline: none;
  font-family: var(--font-family);
}

.header-search input:focus {
  border-color: var(--color-secondary);
}

.header-search button {
  background: #004098;
  color: white;
  border: none;
  border-radius: 0 20px 20px 0;
  padding: 8px 16px;
  cursor: pointer;
  font-size: 0.875rem;
  transition: background var(--transition);
}

.header-search button:hover {
  background: var(--color-primary-dark);
}

/* Navigation */
.global-nav {
  background: #004098;
}

.global-nav .container {
  display: flex;
  align-items: stretch;
  justify-content: center;
}

.nav-list {
  display: flex;
  justify-content: center;
}

.nav-item {
  position: relative;
}

.nav-item > a {
  display: flex;
  align-items: center;
  padding: 14px 20px;
  color: rgba(255,255,255,0.9);
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  transition: all var(--transition);
}

.nav-item > a:hover,
.nav-item.active > a {
  background: rgba(255,255,255,0.15);
  color: #ffffff;
}

.nav-item > a .arrow {
  margin-left: 6px;
  font-size: 0.625rem;
  transition: transform var(--transition);
}

/* Highlight Nav Item (特別講演会等) */
.nav-item--sub {
  margin-left: 8px;
}

.nav-item--sub > a {
  background: rgba(255,255,255,0.9) !important;
  color: var(--color-primary) !important;
  font-weight: 600;
  border: 1px solid rgba(255,255,255,0.9);
  border-radius: 6px;
  margin: 5px 0;
  padding: 9px 20px !important;
  font-size: 0.8125rem;
  letter-spacing: 0.03em;
}

.nav-item--sub > a:hover {
  background: white !important;
  color: var(--color-primary) !important;
}

.nav-item--highlight {
  margin-left: 8px;
}

.nav-item--highlight > a {
  position: relative;
  background: rgba(255,255,255,0.15) !important;
  color: white !important;
  font-weight: 600;
  border: 1px solid rgba(255,255,255,0.5);
  border-radius: 6px;
  margin: 5px 0;
  padding: 9px 20px !important;
  font-size: 0.8125rem;
  letter-spacing: 0.03em;
}

.nav-item--highlight > a::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  background: #ff4d4f;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
  box-shadow: 0 0 6px rgba(255,77,79,0.6);
  animation: dot-pulse 2s ease-in-out infinite;
}

@keyframes dot-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.nav-item--highlight > a:hover {
  background: rgba(255,255,255,0.25) !important;
  border-color: white;
  color: white !important;
}

/* Dropdown */
.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-base);
  min-width: 220px;
  box-shadow: var(--shadow-md);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: all var(--transition);
  z-index: 100;
}

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

.dropdown a {
  display: block;
  padding: 10px 20px;
  color: var(--color-text);
  font-size: 0.8125rem;
  border-bottom: 1px solid #f0f0f0;
  transition: background var(--transition), padding-left var(--transition);
}

.dropdown a:last-child {
  border-bottom: none;
}

.dropdown a:hover {
  background: var(--color-bg-light);
  padding-left: 28px;
  color: var(--color-primary);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 12px;
  position: relative;
  z-index: 1100;
  width: 48px;
  height: 48px;
  align-items: center;
  justify-content: center;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: #004098;
  transition: all 0.3s ease;
  border-radius: 2px;
}

/* Overlay (背景の黒い半透明) */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1040;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.nav-overlay.active {
  display: block;
  opacity: 1;
}

/* Close button inside menu */
.nav-close {
  display: none;
  position: absolute;
  top: 16px;
  right: 16px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 10;
  align-items: center;
  justify-content: center;
}

.nav-close::before,
.nav-close::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2.5px;
  background: #333;
  border-radius: 2px;
}

.nav-close::before {
  transform: rotate(45deg);
}

.nav-close::after {
  transform: rotate(-45deg);
}

/* ============================================
   HERO / PAGE HEADER
   ============================================ */
.hero {
  position: relative;
  overflow: hidden;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.3);
  z-index: 1;
}

.hero__bg-image {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 30%;
  z-index: 0;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: white;
  padding: 80px 24px;
  max-width: 800px;
}

.hero__catch {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 20px;
  text-shadow: 0 2px 12px rgba(0,0,0,0.7), 0 0 40px rgba(0,0,0,0.3);
}

.hero__lead {
  font-size: clamp(0.9375rem, 1.8vw, 1.125rem);
  opacity: 0.95;
  line-height: 1.9;
  margin-bottom: 36px;
  text-shadow: 0 1px 8px rgba(0,0,0,0.6), 0 0 20px rgba(0,0,0,0.2);
}

.hero__buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Page Header (sub pages) */
.page-header {
  position: relative;
  padding: 80px 0 60px;
  text-align: center;
  overflow: hidden;
}

.page-header__bg {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.35);
  z-index: 1;
}

.page-header__bg-image {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.page-header__content {
  position: relative;
  z-index: 2;
}

.page-header__en {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.9);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: 8px;
  text-shadow: 0 1px 6px rgba(0,0,0,0.5);
}

.page-header__title {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  color: white;
  font-weight: 700;
  text-shadow: 0 2px 12px rgba(0,0,0,0.6), 0 0 30px rgba(0,0,0,0.2);
}

/* ============================================
   BREADCRUMB
   ============================================ */
.breadcrumb {
  background: var(--color-bg-light);
  padding: 12px 0;
  font-size: 0.8125rem;
  border-bottom: 1px solid var(--color-border);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  align-items: center;
}

.breadcrumb__item {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--color-text-sub);
}

.breadcrumb__item a {
  color: var(--color-text-sub);
}

.breadcrumb__item a:hover {
  color: var(--color-primary);
}

.breadcrumb__item:not(:last-child)::after {
  content: ">";
  margin-left: 8px;
  color: var(--color-text-light);
  font-size: 0.75rem;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: var(--font-family);
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  text-align: center;
  line-height: 1.4;
}

.btn--primary {
  background: #004098;
  color: white;
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background: var(--color-secondary);
  color: white;
  border-color: var(--color-secondary);
}

.btn--secondary:hover {
  background: #1279b5;
  border-color: #1279b5;
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background: transparent;
  color: white;
  border-color: rgba(255,255,255,0.6);
}

.btn--outline:hover {
  background: rgba(255,255,255,0.15);
  border-color: white;
  color: white;
}

.btn--outline-primary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--outline-primary:hover {
  background: #004098;
  color: white;
}

.btn--accent {
  background: var(--color-accent);
  color: white;
  border-color: var(--color-accent);
}

.btn--accent:hover {
  background: #DD6B20;
  border-color: #d49615;
  color: white;
  transform: translateY(-2px);
}

.btn--white {
  background: white;
  color: var(--color-primary);
  border-color: white;
}

.btn--white:hover {
  background: #f0f0f0;
  transform: translateY(-2px);
  color: var(--color-primary);
}

.btn--lg {
  padding: 18px 44px;
  font-size: 1.0625rem;
}

.btn--sm {
  padding: 8px 20px;
  font-size: 0.8125rem;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

/* Steps */
.steps {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 48px;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 24px;
  background: var(--color-bg-light);
  border-radius: var(--radius-lg);
}

.step__number {
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.125rem;
  flex-shrink: 0;
}

.step__content {
  flex: 1;
}

.step__title {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.step__text {
  font-size: 0.9375rem;
  color: var(--color-text-sub);
  line-height: 1.7;
}

/* ============================================
   CARDS
   ============================================ */
.card-grid {
  display: grid;
  gap: 28px;
}

.card-grid--2 { grid-template-columns: repeat(2, 1fr); }
.card-grid--3 { grid-template-columns: repeat(3, 1fr); }
.card-grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--color-base);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.card__image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--color-bg-section);
}

.card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.card:hover .card__image img {
  transform: scale(1.05);
}

.card__body {
  padding: 24px;
}

.card__category {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--color-secondary);
  background: rgba(25,140,210,0.1);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 10px;
}

.card__date {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-bottom: 8px;
}

.card__title {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: 10px;
}

.card__title a {
  color: inherit;
}

.card__title a:hover {
  color: var(--color-primary);
}

.card__excerpt {
  font-size: 0.875rem;
  color: var(--color-text-sub);
  line-height: 1.8;
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-top: 16px;
}

.card__link:hover {
  gap: 10px;
}

/* Link Card (About page sub-links) */
.link-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px;
  background: var(--color-base);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  border-left: 4px solid var(--color-primary);
}

.link-card:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
  color: var(--color-text);
}

.link-card__icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  background: var(--color-bg-section);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--color-primary);
}

.link-card__icon svg {
  width: 24px;
  height: 24px;
}

.link-card__text h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.link-card__text p {
  font-size: 0.8125rem;
  color: var(--color-text-sub);
}

/* ============================================
   IMAGE PLACEHOLDER (for AI-generated images)
   ============================================ */
.img-placeholder {
  background: linear-gradient(135deg, #e8eef5 0%, #d4dde8 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
  min-height: 200px;
  border: 2px dashed #b0c4de;
  border-radius: var(--radius-md);
  position: relative;
}

.img-placeholder__icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  opacity: 0.5;
}

.img-placeholder__label {
  font-size: 0.75rem;
  color: var(--color-primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.img-placeholder__desc {
  font-size: 0.8125rem;
  color: var(--color-text-sub);
  max-width: 300px;
  line-height: 1.6;
}

.img-placeholder__size {
  font-size: 0.6875rem;
  color: var(--color-text-light);
  margin-top: 8px;
  background: rgba(255,255,255,0.7);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

/* ============================================
   NEWS LIST
   ============================================ */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.news-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
  text-decoration: none;
  transition: background 0.15s;
}

a.news-item {
  margin: 0 -16px;
  padding: 20px 16px;
  border-radius: var(--radius-sm);
}

a.news-item:hover {
  background: var(--color-bg-light);
}

.news-item__date {
  flex-shrink: 0;
  font-size: 0.8125rem;
  color: var(--color-text-light);
  min-width: 100px;
  padding-top: 2px;
}

.news-item__category {
  flex-shrink: 0;
  font-size: 0.6875rem;
  font-weight: 600;
  color: white;
  background: var(--color-secondary);
  padding: 2px 10px;
  border-radius: var(--radius-full);
  min-width: 80px;
  text-align: center;
}

.news-item__category--event {
  background: #2aa5a0;
}

.news-item__category--press {
  background: #6c757d;
}

.news-item__title {
  font-size: 0.9375rem;
  color: var(--color-text);
  line-height: 1.6;
}

a.news-item:hover .news-item__title {
  color: var(--color-primary);
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
  position: relative;
  padding: 80px 0;
  text-align: center;
  overflow: hidden;
}

.cta-section__bg {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.35);
  z-index: 1;
}

.cta-section__bg-image {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.cta-section__content {
  position: relative;
  z-index: 2;
}

.cta-section__title {
  font-size: 1.5rem;
  color: white;
  font-weight: 700;
  margin-bottom: 16px;
  text-shadow: 0 2px 12px rgba(0,0,0,0.6), 0 0 30px rgba(0,0,0,0.2);
}

.cta-section__desc {
  color: rgba(255,255,255,0.9);
  max-width: 600px;
  margin: 0 auto 32px;
  line-height: 1.9;
  text-shadow: 0 1px 8px rgba(0,0,0,0.5);
}

.cta-section__buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   TABLES
   ============================================ */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
}

.data-table thead th {
  background: #004098;
  color: white;
  padding: 12px 16px;
  text-align: left;
  font-size: 0.875rem;
  font-weight: 600;
}

.data-table tbody td {
  padding: 12px 16px;
  font-size: 0.875rem;
  border-bottom: 1px solid var(--color-border);
}

.data-table tbody tr:nth-child(even) {
  background: var(--color-bg-light);
}

.data-table tbody tr:hover {
  background: var(--color-bg-section);
}

/* ============================================
   FORM
   ============================================ */
.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.form-label .required {
  color: var(--color-error);
  font-size: 0.75rem;
  margin-left: 6px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-family: var(--font-family);
  color: var(--color-text);
  transition: border-color var(--transition);
  background: white;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(25,140,210,0.15);
}

.form-textarea {
  min-height: 160px;
  resize: vertical;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: #002060;
  color: rgba(255,255,255,0.75);
  padding: 60px 0 0;
  margin-top: auto;
}

.footer a {
  color: rgba(255,255,255,0.75);
}

.footer a:hover {
  color: white;
}

.footer__top {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer__logo-img {
  height: 40px;
  width: auto;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.footer__logo-name {
  font-size: 1.125rem;
  color: white;
  font-weight: 700;
}

.footer__mission {
  font-size: 0.8125rem;
  line-height: 1.8;
  opacity: 0.7;
}

.footer__sns {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.footer__sns a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  transition: background var(--transition);
}

.footer__sns a:hover {
  background: rgba(255,255,255,0.2);
}

.footer__nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer__nav-group h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: white;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-secondary);
  display: inline-block;
}

.footer__nav-group ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer__nav-group li a {
  font-size: 0.8125rem;
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer__nav-group li a::before {
  content: "";
  display: block;
  width: 4px;
  height: 4px;
  background: var(--color-secondary);
  border-radius: 50%;
  flex-shrink: 0;
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  font-size: 0.75rem;
  opacity: 0.6;
}

.footer__bottom-links {
  display: flex;
  gap: 20px;
}

/* ============================================
   PAGINATION
   ============================================ */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4px;
  margin-top: 48px;
}

.pagination__item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  color: var(--color-text-sub);
  transition: all var(--transition);
}

.pagination__item:hover {
  background: var(--color-bg-light);
  color: var(--color-primary);
}

.pagination__item.active {
  background: #004098;
  color: white;
  font-weight: 600;
}

/* ============================================
   ABOUT PAGE: TIMELINE
   ============================================ */
.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline__item {
  position: relative;
  padding-bottom: 32px;
}

.timeline__item::before {
  content: "";
  position: absolute;
  left: -34px;
  top: 6px;
  width: 12px;
  height: 12px;
  background: #004098;
  border-radius: 50%;
  border: 2px solid white;
  box-shadow: 0 0 0 2px var(--color-primary);
}

.timeline__year {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.timeline__text {
  font-size: 0.9375rem;
  color: var(--color-text-sub);
  line-height: 1.7;
}

/* ============================================
   SUPPORT PAGE: PLAN CARDS
   ============================================ */
.plan-card {
  background: var(--color-base);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: all var(--transition);
  border: 2px solid transparent;
}

.plan-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.plan-card--featured {
  border-color: var(--color-primary);
}

.plan-card__header {
  padding: 28px 24px 20px;
  background: var(--color-bg-light);
}

.plan-card--featured .plan-card__header {
  background: #004098;
  color: white;
}

.plan-card__name {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.plan-card__price {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
}

.plan-card--featured .plan-card__price {
  color: white;
}

.plan-card__price span {
  font-size: 0.875rem;
  font-weight: 400;
}

.plan-card__body {
  padding: 24px;
}

.plan-card__features {
  text-align: left;
  margin-bottom: 24px;
}

.plan-card__features li {
  padding: 8px 0;
  font-size: 0.875rem;
  color: var(--color-text-sub);
  border-bottom: 1px solid #f0f0f0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.plan-card__features li::before {
  content: "✓";
  color: var(--color-success);
  font-weight: 700;
}

/* ============================================
   KNOWLEDGE PAGE: ACCORDION
   ============================================ */
.accordion {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.accordion__item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.accordion__header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--color-bg-light);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9375rem;
  border: none;
  width: 100%;
  text-align: left;
  font-family: var(--font-family);
  transition: background var(--transition);
}

.accordion__header:hover {
  background: var(--color-bg-section);
}

.accordion__header .q-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: #004098;
  color: white;
  border-radius: 50%;
  font-size: 0.8125rem;
  flex-shrink: 0;
}

.accordion__header .toggle {
  margin-left: auto;
  font-size: 1.25rem;
  color: var(--color-text-light);
  transition: transform var(--transition);
}

.accordion__item.active .accordion__header .toggle {
  transform: rotate(180deg);
}

.accordion__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.accordion__content {
  padding: 20px 20px 20px 60px;
  font-size: 0.9375rem;
  color: var(--color-text-sub);
  line-height: 1.9;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .card-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .card-grid--3 { grid-template-columns: repeat(2, 1fr); }
  .footer__top { grid-template-columns: 1fr; }
  .footer__nav { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 782px) {
  .utility-bar .container {
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
  }

  .main-header .container {
    flex-wrap: wrap;
    gap: 12px;
  }

  .header-search {
    order: 3;
    width: 100%;
  }

  .header-search input {
    width: 100%;
  }

  .hamburger {
    display: flex;
  }

  .global-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 280px;
    max-width: 80vw;
    background: #fff;
    z-index: 1050;
    padding: 72px 24px 40px;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.15);
  }

  .global-nav.active {
    transform: translateX(0);
  }

  .global-nav .container {
    display: block;
    padding: 0;
    max-width: none;
  }

  .nav-close {
    display: flex;
  }

  .nav-list {
    flex-direction: column;
    gap: 0;
  }

  .nav-item > a {
    font-size: 1rem;
    padding: 16px 12px;
    color: #333;
    border-bottom: 1px solid #eee;
    transition: background 0.2s;
  }

  .nav-item > a:hover,
  .nav-item > a:active {
    background: #f5f5f5;
    color: var(--color-primary);
  }

  .nav-item.active > a,
  .nav-item > a[aria-current="page"] {
    color: var(--color-primary);
    font-weight: 600;
  }

  .nav-item--sub {
    margin-top: 8px;
  }

  .nav-item--sub a {
    font-size: 0.9375rem;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    border-radius: 8px;
    text-align: center;
    padding: 12px;
    margin: 4px 0;
    border-bottom: none;
  }

  .nav-item--highlight {
    margin-left: 0;
  }

  .nav-item--highlight > a {
    font-size: 0.9375rem !important;
    background: var(--color-primary) !important;
    color: white !important;
    border-radius: 8px !important;
    text-align: center;
    padding: 12px !important;
    margin: 4px 0;
    border: none !important;
    border-bottom: none !important;
  }

  .nav-item--highlight > a::before {
    display: none;
  }

  .nav-item--highlight > a:hover {
    background: var(--color-primary-dark) !important;
    color: white !important;
  }

  .nav-item--sub {
    margin-left: 0;
  }

  .nav-item--sub > a {
    background: white !important;
    color: var(--color-primary) !important;
    border: 1px solid var(--color-primary) !important;
    border-radius: 8px !important;
    text-align: center;
    padding: 12px !important;
    margin: 4px 0;
  }

  .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    background: #f9f9f9;
    border-radius: 0;
    display: none;
  }

  .nav-item.active .dropdown {
    display: block;
  }

  .dropdown a {
    color: #333;
    border-bottom-color: #eee;
    padding: 14px 24px;
  }

  .dropdown a:hover {
    background: #f0f0f0;
    color: var(--color-primary);
    padding-left: 32px;
  }

  .hero {
    min-height: 400px;
  }

  .hero__content {
    padding: 48px 16px;
  }

  .hero__buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero__buttons .btn {
    width: 100%;
    max-width: 320px;
  }

  .footer__nav-group li a {
    padding: 6px 0;
    display: inline-block;
  }

  .mission-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .card-grid--2,
  .card-grid--3,
  .card-grid--4 {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 48px 0;
  }

  .footer__nav {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .news-item {
    flex-direction: column;
    gap: 8px;
  }

  .news-item__date {
    min-width: auto;
  }

  .data-table {
    display: block;
    overflow-x: auto;
  }

  .newsletter-banner__form {
    flex-direction: column;
  }

  .data-table tbody th {
    width: auto;
  }

  .cta-section__buttons {
    flex-direction: column;
    align-items: center;
  }

  .info-grid {
    grid-template-columns: 1fr !important;
    gap: 24px !important;
  }

  .chairman-bio {
    flex-direction: column !important;
    gap: 24px !important;
    align-items: center !important;
  }

  .chairman-bio > img {
    max-width: 200px !important;
  }

  .featured-event-inner {
    flex-wrap: wrap !important;
    padding: 20px !important;
    gap: 16px !important;
  }

  .data-table,
  .data-table tbody,
  .data-table tr,
  .data-table th,
  .data-table td {
    display: block;
    width: 100%;
  }

  .data-table th {
    border-bottom: none;
    padding-bottom: 4px;
    font-weight: 700;
  }

  .data-table td {
    padding-top: 4px;
  }

  .data-table tr {
    border-bottom: 1px solid var(--color-border);
    padding: 12px 0;
  }
}

@media (max-width: 480px) {
  .footer__nav {
    grid-template-columns: 1fr;
  }

  .btn--lg {
    padding: 14px 28px;
    font-size: 0.9375rem;
    width: 100%;
  }
}

/* SNS Icons */
.utility-bar__sns a,
.footer__sns a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  transition: opacity 0.2s;
}
.utility-bar__sns a:hover,
.footer__sns a:hover {
  opacity: 0.7;
}
.utility-bar__sns svg {
  width: 18px;
  height: 18px;
}
.footer__sns svg {
  width: 20px;
  height: 20px;
}


/* Greeting (理事長挨拶) */
.greeting {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 3rem;
  align-items: center;
}
.greeting__photo {
  text-align: center;
}
.greeting__photo .img-placeholder {
  border-radius: 8px;
  overflow: hidden;
}
.greeting__name {
  margin-top: 1rem;
  font-size: 1.1rem;
  font-weight: 600;
  color: #333;
}
.greeting__body {
  line-height: 1.9;
}
.greeting__heading {
  font-size: 1.4rem;
  color: var(--color-primary, #004098);
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--color-primary, #004098);
}
.greeting__body p {
  margin-bottom: 1rem;
  color: #444;
}
.greeting__body p:last-child {
  margin-bottom: 0;
}
@media (max-width: 782px) {
  .greeting {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .greeting__photo {
    max-width: 240px;
    margin: 0 auto;
  }
  .greeting__heading {
    font-size: 1.2rem;
  }
}


/* ============================================
   HERO TOP (Homepage)
   ============================================ */
.hero-top {
  position: relative;
  padding: 100px 0 80px;
  text-align: center;
  background: linear-gradient(135deg, #003380 0%, #004098 50%, #198cd2 100%);
  color: white;
  overflow: hidden;
}

.hero-top__label {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.8);
  letter-spacing: 0.2em;
  margin-bottom: 16px;
}

.hero-top__title {
  font-size: clamp(1.75rem, 4.5vw, 2.75rem);
  font-weight: 700;
  color: white;
  line-height: 1.4;
  margin-bottom: 24px;
  letter-spacing: 0.04em;
  text-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.hero-top__lead {
  font-size: 1.0625rem;
  color: rgba(255,255,255,0.9);
  line-height: 2;
}

@media (max-width: 782px) {
  .hero-top {
    padding: 64px 0 48px;
  }
}

/* ============================================
   FOOTER (Simplified)
   ============================================ */
.footer__main {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  gap: 32px;
}

.footer__org-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
  margin-bottom: 8px;
}

.footer__address {
  font-style: normal;
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.8;
}

.footer__links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.footer__links a {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.5);
  transition: color var(--transition);
}

.footer__links a:hover {
  color: rgba(255,255,255,0.9);
}

@media (max-width: 782px) {
  .footer__main {
    flex-direction: column;
    gap: 24px;
  }
  .footer__links {
    gap: 16px;
  }
}

/* ============================================
   BACK TO TOP BUTTON
   ============================================ */
.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: var(--color-primary);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s, visibility 0.3s, transform 0.3s, background 0.3s;
  z-index: 900;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-primary-dark, #003080);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

@media (max-width: 782px) {
  .back-to-top {
    bottom: 16px;
    right: 16px;
    width: 44px;
    height: 44px;
  }
}