:root {
  --accent-1: #5f9c1a;
  --accent-2: #265c0e;
  --accent-lime: #d4f042;
  --accent-lime-text: #375c0a;
  --bg: #fafbf3;
  --card-bg: #ffffff;
  --text: #222222;
  --text-sub: #6b6b76;
  --border: #eaeee0;
  --radius: 14px;
  --shadow: 0 4px 16px rgba(40, 60, 10, 0.07);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic",
    "Noto Sans JP", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}

a { color: inherit; text-decoration: none; }

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

/* ---- Header ---- */
.site-header {
  background: linear-gradient(120deg, var(--accent-1), var(--accent-2));
  color: #fff;
  padding: 28px 20px;
}

.site-header__inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

@media (max-width: 720px) {
  .site-header__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav {
    width: 100%;
  }
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.site-header__icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(255, 255, 255, 0.7);
  flex-shrink: 0;
}

.site-header__logo {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.03em;
}

.site-header__tagline {
  font-size: 13px;
  opacity: 0.9;
  margin-top: 2px;
}

.site-nav {
  display: flex;
  gap: 18px;
  font-size: 14px;
  font-weight: 600;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.site-nav::-webkit-scrollbar {
  display: none;
}

.site-nav a {
  padding: 6px 4px;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  flex: 0 0 auto;
}

.site-nav a.is-active,
.site-nav a:hover {
  border-bottom-color: #fff;
}

/* ---- Layout ---- */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

.page-title {
  font-size: 22px;
  font-weight: 800;
  margin: 0 0 6px;
}

.page-desc {
  color: var(--text-sub);
  font-size: 14px;
  margin: 0 0 24px;
}

/* ---- Playlist banner ---- */
.playlist-banner {
  display: flex;
  align-items: center;
  gap: 14px;
  background: linear-gradient(120deg, var(--accent-1), var(--accent-2));
  color: #fff;
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 24px;
  transition: opacity 0.15s ease;
}

.playlist-banner:hover { opacity: 0.92; }

.playlist-banner__icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.playlist-banner__icon i { font-style: normal; }

.playlist-banner__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
  min-width: 0;
}

.playlist-banner__text strong {
  font-size: 15px;
  font-weight: 800;
}

.playlist-banner__text span {
  font-size: 12.5px;
  opacity: 0.9;
}

.playlist-banner__arrow {
  font-size: 18px;
  flex-shrink: 0;
}

/* ---- Filter bar ---- */
.filter-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.filter-select-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-sub);
}

.filter-select {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  min-width: 200px;
}

.filter-select:focus {
  outline: none;
  border-color: var(--accent-2);
}

/* ---- Video grid & card ---- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 22px;
}

.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}

.card__thumb {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  background: #ddd;
  overflow: hidden;
}

.card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card__play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 28px;
  background: rgba(0, 0, 0, 0);
  opacity: 0;
  transition: opacity 0.15s ease, background 0.15s ease;
}

.card__thumb:hover .card__play {
  opacity: 1;
  background: rgba(0, 0, 0, 0.25);
}

.card__badge {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  font-size: 10.5px;
  padding: 3px 8px;
  border-radius: 999px;
}

.card__body {
  padding: 14px 16px 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.card__title {
  font-size: 15px;
  margin: 0;
  font-weight: 700;
  line-height: 1.4;
}

.card__title a:hover { color: var(--accent-2); }

.card__meta {
  font-size: 12.5px;
  color: var(--text-sub);
  margin: 0;
}

.card__views:empty { display: none; }

.card__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

.chip {
  font-size: 11.5px;
  background: #eef7d9;
  color: var(--accent-lime-text);
  padding: 3px 10px;
  border-radius: 999px;
}

.chip:hover { background: #dff0bd; }

.chip--active {
  background: var(--accent-2);
  color: #fff;
}

.score-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 8px;
  align-self: flex-start;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-lime-text);
  background: var(--accent-lime);
  padding: 5px 12px;
  border-radius: 999px;
}

.score-link:hover { filter: brightness(0.95); }

.score-link i { font-style: normal; }

.empty-state {
  color: var(--text-sub);
  font-size: 14px;
  padding: 40px 0;
  text-align: center;
}

/* ---- Member grid & card ---- */
.member-gen-group {
  margin-bottom: 36px;
}

.member-gen-title {
  font-size: 15px;
  font-weight: 800;
  color: var(--accent-2);
  border-left: 4px solid var(--accent-2);
  padding-left: 10px;
  margin: 0 0 14px;
}

.member-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}

.member-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: block;
}

.member-card__photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.member-card__body { padding: 14px 16px; }

.member-card__name {
  margin: 0 0 2px;
  font-size: 16px;
  font-weight: 800;
}

.member-card__part {
  margin: 0;
  font-size: 12.5px;
  color: var(--accent-2);
  font-weight: 600;
}

.member-card__count {
  margin: 8px 0 0;
  font-size: 12px;
  color: var(--text-sub);
}

/* ---- Member profile (detail page) ---- */
.member-profile {
  display: flex;
  gap: 24px;
  align-items: center;
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.member-profile__photo {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.member-profile__name {
  margin: 0 0 4px;
  font-size: 22px;
  font-weight: 800;
}

.member-profile__part {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-2);
}

.member-profile__bio {
  margin: 0;
  font-size: 14px;
  color: var(--text-sub);
  max-width: 560px;
}

.back-link {
  display: inline-block;
  margin-bottom: 18px;
  font-size: 13px;
  color: var(--accent-2);
  font-weight: 600;
}

/* ---- Research page ---- */
.research-section {
  margin-bottom: 48px;
}

.research-section__title {
  font-size: 17px;
  font-weight: 800;
  margin: 0 0 8px;
  border-left: 4px solid var(--accent-2);
  padding-left: 10px;
}

.research-section__desc {
  font-size: 13.5px;
  color: var(--text-sub);
  margin: 0 0 16px;
  max-width: 680px;
}

.research-image-link {
  display: inline-block;
  max-width: 360px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.research-image {
  width: 100%;
  display: block;
}

.research-download {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-lime-text);
  background: var(--accent-lime);
  padding: 8px 16px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.research-download i { font-style: normal; }

.research-slides {
  display: flex;
  flex-direction: row;
  gap: 14px;
  overflow-x: auto;
  padding-bottom: 8px;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.research-slide-link {
  flex: 0 0 auto;
  scroll-snap-align: start;
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.research-slide {
  height: 220px;
  width: auto;
  display: block;
}

/* ---- Contact ---- */
.contact-card {
  display: flex;
  align-items: center;
  gap: 18px;
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px 26px;
  max-width: 480px;
}

.contact-card__icon {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
  border-radius: 50%;
  background: linear-gradient(120deg, var(--accent-1), var(--accent-2));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.contact-card__icon i { font-style: normal; }

.contact-card__label {
  margin: 0 0 4px;
  font-size: 12.5px;
  color: var(--text-sub);
}

.contact-card__email {
  font-size: 17px;
  font-weight: 700;
  word-break: break-all;
}

.contact-card__email:hover { color: var(--accent-2); }

/* ---- 限定コンテンツ（パスワードゲート） ---- */
.password-gate {
  max-width: 420px;
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 26px;
}

.password-gate__label {
  display: block;
  font-size: 13.5px;
  color: var(--text-sub);
  margin-bottom: 10px;
}

.password-gate__row {
  display: flex;
  gap: 10px;
}

.password-gate__input {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  background: #fff;
  color: var(--text);
}

.password-gate__input:focus {
  outline: none;
  border-color: var(--accent-2);
}

.password-gate__button {
  padding: 10px 18px;
  border: none;
  border-radius: 8px;
  background: var(--accent-1);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.15s ease;
}

.password-gate__button:hover { background: var(--accent-2); }

.password-gate__error {
  margin: 10px 0 0;
  font-size: 12.5px;
  color: #c0392b;
  display: none;
}

.password-gate__error.is-visible { display: block; }

.exclusive-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 640px;
}

.exclusive-item {
  display: flex;
  gap: 16px;
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.exclusive-item__thumb {
  position: relative;
  display: block;
  flex: 0 0 160px;
  aspect-ratio: 16 / 9;
  background: #ddd;
  overflow: hidden;
}

.exclusive-item__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.exclusive-item__body {
  padding: 14px 16px 14px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
}

.exclusive-item__title {
  font-size: 15px;
  margin: 0;
  font-weight: 700;
  line-height: 1.4;
}

.exclusive-item__title a:hover { color: var(--accent-2); }

.exclusive-item__meta {
  font-size: 12.5px;
  color: var(--text-sub);
  margin: 0;
}

@media (max-width: 480px) {
  .exclusive-item { flex-direction: column; }
  .exclusive-item__thumb { flex: none; width: 100%; }
  .exclusive-item__body { padding: 12px 16px 16px; }
}

/* ---- ぴのグリの歴史（手書きノート風） ---- */
.notebook {
  max-width: 720px;
  padding: 10px 0 30px;
}

.notebook__page {
  position: relative;
  background:
    linear-gradient(90deg, transparent 0 46px, rgba(217, 70, 70, 0.35) 46px, rgba(217, 70, 70, 0.35) 47px, transparent 47px),
    repeating-linear-gradient(
      to bottom,
      transparent 0,
      transparent 38px,
      rgba(95, 140, 200, 0.35) 39px,
      transparent 40px
    ),
    #fffdf5;
  border-radius: 6px;
  box-shadow: var(--shadow), 0 1px 0 rgba(0, 0, 0, 0.04);
  padding: 46px 34px 40px 62px;
  transform: rotate(-0.4deg);
}

.notebook__page::before {
  content: "";
  position: absolute;
  top: -10px;
  left: 36px;
  width: 64px;
  height: 26px;
  background: rgba(212, 240, 66, 0.55);
  border: 1px solid rgba(95, 156, 26, 0.25);
  transform: rotate(-3deg);
}

.notebook__page::after {
  content: "";
  position: absolute;
  top: -10px;
  right: 46px;
  width: 64px;
  height: 26px;
  background: rgba(212, 240, 66, 0.55);
  border: 1px solid rgba(95, 156, 26, 0.25);
  transform: rotate(2deg);
}

.notebook__text {
  font-family: "Klee One", "Hiragino Sans", "Yu Gothic", sans-serif;
  font-weight: 400;
  font-size: 19px;
  line-height: 40px;
  letter-spacing: 0.02em;
  color: #4a4844;
  margin: 0 0 0;
}

.notebook__text + .notebook__text {
  margin-top: 0;
}

@media (max-width: 560px) {
  .notebook__page {
    padding: 40px 18px 34px 40px;
    transform: rotate(0deg);
  }
  .notebook__text {
    font-size: 16.5px;
    line-height: 34px;
  }
  .notebook__page {
    background:
      linear-gradient(90deg, transparent 0 26px, rgba(217, 70, 70, 0.35) 26px, rgba(217, 70, 70, 0.35) 27px, transparent 27px),
      repeating-linear-gradient(
        to bottom,
        transparent 0,
        transparent 32px,
        rgba(95, 140, 200, 0.35) 33px,
        transparent 34px
      ),
      #fffdf5;
  }
}

/* ---- Footer ---- */
.site-footer {
  text-align: center;
  font-size: 12px;
  color: var(--text-sub);
  padding: 28px 20px 40px;
}

@media (max-width: 560px) {
  .member-profile { flex-direction: column; text-align: center; }
  .member-profile__bio { max-width: 100%; }
}