/* =========================================================
   toyop-lab.jp 新サイト 共通スタイル
   ========================================================= */
:root {
  --primary: #0f7c7a;
  --primary-dark: #0a5a59;
  --primary-light: #e3f3f1;
  --accent: #f28c28;
  --bg: #f4f8f7;
  --card: #ffffff;
  --text: #1f2d2c;
  --muted: #5f716f;
  --border: #dbe6e3;
  --danger: #c0392b;
  --like: #e5484d;
  --cat-taiiku: #0f7c7a;
  --cat-chu: #2b6cb0;
  --cat-kou: #6b46c1;
  --cat-shiryo: #4a7c59;
  --radius: 14px;
  --shadow: 0 2px 10px rgba(15, 60, 58, 0.08);
  --shadow-hover: 0 8px 24px rgba(15, 60, 58, 0.14);
  --wrap: 1120px;
}

* { box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }
button { font-family: inherit; font-size: inherit; cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .6; }
input, select, textarea { font-family: inherit; font-size: 1rem; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* ---------- ヘッダー ---------- */
.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 50;
}
.site-header .wrap { display: flex; align-items: center; gap: 16px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); flex-shrink: 0; }
.brand:hover { text-decoration: none; }
.brand img { height: 36px; width: auto; }
.brand strong { display: block; font-size: 1.1rem; line-height: 1.1; color: var(--primary-dark); }
.brand small { display: block; font-size: .72rem; color: var(--muted); }
.gnav { margin-left: auto; display: flex; gap: 4px; }
.gnav a {
  padding: 8px 12px; border-radius: 8px; color: var(--text); font-weight: 500; font-size: .95rem;
}
.gnav a:hover, .gnav a.active { background: var(--primary-light); color: var(--primary-dark); text-decoration: none; }
.menu-btn {
  margin-left: auto; display: none; border: 1px solid var(--border); background: var(--card);
  border-radius: 10px; width: 44px; height: 44px; font-size: 1.3rem; color: var(--primary-dark);
}
@media (max-width: 860px) {
  .gnav { display: none; }
  .menu-btn { display: inline-flex; align-items: center; justify-content: center; }
}

/* ドロワー（全領域メニュー） */
.drawer-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.35); z-index: 90; opacity: 0; pointer-events: none; transition: opacity .2s;
}
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: min(360px, 88vw); background: var(--card); z-index: 100;
  transform: translateX(100%); visibility: hidden; overflow-y: auto; box-shadow: -4px 0 20px rgba(0,0,0,.15);
  transition: transform .25s, visibility 0s linear .25s;
}
body.drawer-open .drawer { transform: none; visibility: visible; transition: transform .25s; }
body.drawer-open .drawer-backdrop { opacity: 1; pointer-events: auto; }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px; border-bottom: 1px solid var(--border); }
.drawer-head strong { color: var(--primary-dark); }
.drawer-close { border: 0; background: transparent; font-size: 1.5rem; line-height: 1; color: var(--muted); width: 40px; height: 40px; }
.drawer-group { padding: 10px 16px 4px; }
.drawer-group h4 { margin: 8px 0 6px; font-size: .8rem; color: var(--muted); letter-spacing: .08em; }
.drawer-group a { display: block; padding: 9px 10px; border-radius: 8px; color: var(--text); }
.drawer-group a:hover, .drawer-group a.active { background: var(--primary-light); text-decoration: none; }
.drawer-foot { padding: 12px 16px 30px; border-top: 1px solid var(--border); margin-top: 10px; }
.drawer-foot a { display: block; padding: 9px 10px; }

/* ---------- レイアウト ---------- */
main { padding: 28px 0 60px; }
.page-title { margin: 0 0 6px; font-size: 1.7rem; color: var(--primary-dark); line-height: 1.3; }
.page-title small { display: block; font-size: .85rem; font-weight: 400; color: var(--muted); letter-spacing: .06em; }
.lead { color: var(--muted); margin: 0 0 20px; }
.section { margin-top: 40px; }
.section-title {
  display: flex; align-items: baseline; gap: 12px; margin: 0 0 16px; font-size: 1.3rem; color: var(--primary-dark);
  padding-left: 14px; border-left: 5px solid var(--primary); line-height: 1.3;
}
.section-title small { font-size: .8rem; color: var(--muted); font-weight: 400; }
.section-title .count { margin-left: auto; font-size: .85rem; color: var(--muted); font-weight: 400; }
.breadcrumb { font-size: .85rem; color: var(--muted); margin: 0 0 14px; }
.breadcrumb a { color: var(--muted); }
.breadcrumb span { margin: 0 6px; }

/* カテゴリ色 */
.cat-体育 { --cat: var(--cat-taiiku); }
.cat-中学保健 { --cat: var(--cat-chu); }
.cat-高校保健 { --cat: var(--cat-kou); }
.cat-資料 { --cat: var(--cat-shiryo); }
.cat-other { --cat: var(--primary); }

/* ---------- ヒーロー（トップ） ---------- */
.hero {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary) 60%, #2aa198);
  color: #fff; padding: 46px 0 40px; margin: -28px 0 8px;
}
.hero h1 { margin: 0 0 8px; font-size: 2rem; line-height: 1.25; }
.hero h1 small { display: block; font-size: 1rem; font-weight: 400; opacity: .9; margin-bottom: 6px; }
.hero p { margin: 0; opacity: .95; max-width: 640px; }
.hero-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.hero-links a {
  background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.45); color: #fff;
  padding: 8px 16px; border-radius: 999px; font-weight: 500;
}
.hero-links a:hover { background: rgba(255,255,255,.28); text-decoration: none; }

/* ---------- 領域カード ---------- */
.area-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; }
.area-card {
  display: flex; flex-direction: column; gap: 4px; background: var(--card); border-radius: var(--radius);
  padding: 18px 18px 14px; box-shadow: var(--shadow); color: var(--text); border-top: 5px solid var(--cat, var(--primary));
  transition: transform .15s, box-shadow .15s; min-height: 108px;
}
.area-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); text-decoration: none; }
.area-card .name { font-weight: 700; font-size: 1.08rem; line-height: 1.35; }
.area-card .en { font-size: .75rem; color: var(--muted); letter-spacing: .04em; }
.area-card .meta { margin-top: auto; font-size: .82rem; color: var(--muted); padding-top: 6px; }
.area-card .meta b { color: var(--cat, var(--primary)); font-size: 1rem; }
.area-card.is-empty .meta { color: #999; }

/* ---------- 教材カード ---------- */
.item-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; }
.item-card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden;
  display: flex; flex-direction: column;
}
.item-card .media { position: relative; background: #0f1f1e; aspect-ratio: 16 / 9; }
.item-card .media iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.yt-thumb {
  position: absolute; inset: 0; width: 100%; height: 100%; border: 0; padding: 0; background: #000; overflow: hidden;
}
.yt-thumb img { width: 100%; height: 100%; object-fit: cover; opacity: .92; transition: transform .3s, opacity .2s; }
.yt-thumb:hover img { transform: scale(1.04); opacity: 1; }
.yt-thumb .play {
  position: absolute; left: 50%; top: 50%; width: 64px; height: 44px; margin: -22px 0 0 -32px;
  background: rgba(229, 72, 77, .95); border-radius: 12px; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 14px rgba(0,0,0,.35);
}
.yt-thumb .play::after { content: ""; border-left: 18px solid #fff; border-top: 11px solid transparent; border-bottom: 11px solid transparent; margin-left: 4px; }
.media-file {
  position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
  color: #fff; background: linear-gradient(135deg, #1d5f5d, #0f7c7a); font-weight: 600; text-decoration: none;
}
.media-file:hover { text-decoration: none; filter: brightness(1.08); }
.media-file .icon { font-size: 2.4rem; line-height: 1; }
.media-file.pdf { background: linear-gradient(135deg, #8e2a2a, #c0392b); }
.media-file.link { background: linear-gradient(135deg, #2b4c6f, #2b6cb0); }
.media-file small { font-weight: 400; font-size: .8rem; opacity: .9; }
.media-placeholder {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  background: repeating-linear-gradient(45deg, #e8efee, #e8efee 10px, #f2f6f5 10px, #f2f6f5 20px); color: var(--muted); font-weight: 600;
}
.item-card .body { padding: 14px 16px 6px; flex: 1; }
.item-card .title { margin: 0 0 6px; font-size: 1.02rem; line-height: 1.45; font-weight: 700; }
.item-card .provider { margin: 0 0 8px; font-size: .84rem; color: var(--muted); }
.item-card .provider a { color: var(--muted); text-decoration: underline dotted; }
.item-card .point { margin: 8px 0 0; font-size: .9rem; background: var(--primary-light); border-radius: 8px; padding: 8px 10px; }
.item-card .point b { color: var(--primary-dark); font-size: .8rem; display: block; margin-bottom: 2px; }
.item-card .foot { display: flex; align-items: center; justify-content: space-between; padding: 8px 12px 12px 16px; gap: 8px; }
.badge {
  display: inline-block; font-size: .72rem; padding: 2px 8px; border-radius: 999px; background: #eef2f1; color: var(--muted); font-weight: 600;
}
.badge.type-YouTube { background: #fdecec; color: #c0392b; }
.badge.type-PDF { background: #fdf0e6; color: #b45309; }
.badge.type-リンク { background: #e6effa; color: #2b6cb0; }
.badge.type-準備中 { background: #eef2f1; color: #7a8a88; }

/* いいねボタン */
.like-btn {
  display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--border); background: var(--card);
  border-radius: 999px; padding: 6px 14px; color: var(--muted); font-weight: 600; transition: all .15s;
}
.like-btn .heart { color: #b9c5c3; font-size: 1.1rem; line-height: 1; transition: transform .15s, color .15s; }
.like-btn:hover:not(:disabled) { border-color: var(--like); color: var(--like); }
.like-btn:hover:not(:disabled) .heart { color: var(--like); transform: scale(1.15); }
.like-btn.liked { border-color: var(--like); background: #fff1f2; color: var(--like); opacity: 1; }
.like-btn.liked .heart { color: var(--like); }
.like-btn.sending .heart { animation: pulse .6s infinite; }
@keyframes pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.3); } }
@keyframes pop { 0% { transform: scale(1); } 40% { transform: scale(1.5); } 100% { transform: scale(1); } }
.like-btn.pop .heart { animation: pop .4s; }

/* 単元ジャンプ */
.unit-nav { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 24px; }
.unit-nav a {
  background: var(--card); border: 1px solid var(--border); border-radius: 999px; padding: 6px 14px; font-size: .9rem; color: var(--text);
}
.unit-nav a:hover { border-color: var(--primary); color: var(--primary-dark); text-decoration: none; }
.unit-block { margin-bottom: 40px; scroll-margin-top: 80px; }
.area-pager { display: flex; justify-content: space-between; gap: 12px; margin-top: 30px; flex-wrap: wrap; }
.area-pager a {
  background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 10px 16px; color: var(--text); font-size: .92rem;
}
.area-pager a:hover { border-color: var(--primary); text-decoration: none; }

/* お知らせ */
.notice-list { list-style: none; margin: 0; padding: 0; background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); }
.notice-list li { display: flex; gap: 14px; align-items: baseline; padding: 12px 18px; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.notice-list li:last-child { border-bottom: 0; }
.notice-list time { font-size: .86rem; color: var(--muted); white-space: nowrap; }
.notice-list .badge { min-width: 56px; text-align: center; }
.notice-list .badge.type-動画 { background: #fdecec; color: #c0392b; }
.notice-list .badge.type-改訂 { background: #e6effa; color: #2b6cb0; }
.notice-list .badge.type-指導案 { background: #fdf0e6; color: #b45309; }

/* 空・読み込み・エラー */
.empty {
  background: var(--card); border: 1px dashed var(--border); border-radius: var(--radius); padding: 30px 20px; text-align: center; color: var(--muted);
}
.loading { display: flex; align-items: center; justify-content: center; gap: 12px; padding: 50px 20px; color: var(--muted); }
.spinner {
  width: 26px; height: 26px; border: 3px solid var(--border); border-top-color: var(--primary); border-radius: 50%; animation: spin .8s linear infinite; flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }
.error-box { background: #fff4f3; border: 1px solid #f3c9c5; color: #8f2a22; border-radius: var(--radius); padding: 20px; text-align: center; }
.error-box p { margin: 0 0 12px; }
.error-box code { display: inline-block; background: #fff; padding: 2px 8px; border-radius: 6px; font-size: .85rem; word-break: break-all; }

/* ---------- ボタン ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 10px 18px; border-radius: 10px;
  border: 1px solid var(--primary); background: var(--primary); color: #fff; font-weight: 600; line-height: 1.2; transition: filter .15s;
}
.btn:hover:not(:disabled) { filter: brightness(1.08); text-decoration: none; }
.btn.secondary { background: var(--card); color: var(--primary-dark); }
.btn.danger { background: var(--danger); border-color: var(--danger); }
.btn.ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn.small { padding: 6px 12px; font-size: .86rem; border-radius: 8px; }
.btn.icon { padding: 6px 9px; min-width: 34px; }

/* ---------- モーダル・トースト ---------- */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(15, 40, 38, .5); display: flex; align-items: center; justify-content: center;
  z-index: 200; padding: 16px; animation: fadein .15s;
}
@keyframes fadein { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: var(--card); border-radius: 16px; width: 100%; max-width: 520px; max-height: 92vh; overflow: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,.3); padding: 24px;
}
.modal.wide { max-width: 720px; }
.modal h2 { margin: 0 0 14px; font-size: 1.2rem; color: var(--primary-dark); }
.modal p { margin: 0 0 12px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; flex-wrap: wrap; }
.form-row { margin-bottom: 14px; }
.form-row label { display: block; font-size: .85rem; font-weight: 600; color: var(--muted); margin-bottom: 4px; }
.form-row label .req { color: var(--danger); margin-left: 4px; }
.form-row input[type="text"], .form-row input[type="password"], .form-row input[type="date"], .form-row input[type="number"],
.form-row select, .form-row textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; background: #fff; color: var(--text);
}
.form-row textarea { min-height: 90px; resize: vertical; }
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { outline: 2px solid var(--primary-light); border-color: var(--primary); }
.form-row .hint { font-size: .78rem; color: var(--muted); margin-top: 4px; }
.form-row.inline { display: flex; align-items: center; gap: 10px; }
.form-row.inline label { margin: 0; }
.form-error { color: var(--danger); font-size: .9rem; min-height: 1.4em; margin-top: 8px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }
@media (max-width: 600px) { .form-grid { grid-template-columns: 1fr; } }

.toast-wrap { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 300; display: flex; flex-direction: column; gap: 8px; align-items: center; pointer-events: none; }
.toast {
  background: #1f2d2c; color: #fff; padding: 12px 20px; border-radius: 999px; font-size: .95rem; box-shadow: 0 6px 20px rgba(0,0,0,.25);
  animation: toastin .25s; max-width: 90vw;
}
.toast.error { background: var(--danger); }
.toast.success { background: var(--primary-dark); }
@keyframes toastin { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

.busy-overlay {
  position: fixed; inset: 0; background: rgba(255,255,255,.7); z-index: 250; display: flex; align-items: center; justify-content: center; gap: 12px; color: var(--primary-dark); font-weight: 600;
}

/* ---------- フッター ---------- */
.site-footer { background: var(--card); border-top: 1px solid var(--border); padding: 28px 0 36px; color: var(--muted); font-size: .86rem; }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 14px 24px; align-items: center; }
.site-footer .copy { margin-right: auto; }
.site-footer .copy strong { color: var(--primary-dark); }
.site-footer .admin-link { background: transparent; border: 1px solid var(--border); color: var(--muted); border-radius: 8px; padding: 6px 12px; font-size: .82rem; }
.site-footer .admin-link:hover { border-color: var(--primary); color: var(--primary-dark); }

/* ---------- 当サイトについて ---------- */
.prose { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px 30px; max-width: 820px; }
.prose p { margin: 0 0 1em; }
.prose p:last-child { margin: 0; }
.prose h3 { color: var(--primary-dark); font-size: 1.05rem; margin: 1.6em 0 .5em; }

/* ---------- 管理画面 ---------- */
body.admin { background: #eef3f2; }
.admin-bar { background: var(--primary-dark); color: #fff; }
.admin-bar .wrap { display: flex; align-items: center; gap: 14px; height: 60px; }
.admin-bar strong { font-size: 1.05rem; }
.admin-bar .spacer { flex: 1; }
.admin-bar a, .admin-bar button { color: #fff; border: 1px solid rgba(255,255,255,.5); background: transparent; border-radius: 8px; padding: 6px 12px; font-size: .88rem; }
.admin-bar a:hover, .admin-bar button:hover { background: rgba(255,255,255,.15); text-decoration: none; }
.tabs { display: flex; gap: 4px; border-bottom: 2px solid var(--border); margin: 20px 0 18px; overflow-x: auto; }
.tabs button {
  border: 0; background: transparent; padding: 10px 16px; font-weight: 600; color: var(--muted); border-bottom: 3px solid transparent; margin-bottom: -2px; white-space: nowrap;
}
.tabs button.active { color: var(--primary-dark); border-bottom-color: var(--primary); }
.toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 14px; }
.toolbar select, .toolbar input[type="text"] { padding: 9px 12px; border: 1px solid var(--border); border-radius: 10px; background: #fff; min-width: 180px; }
.toolbar .grow { flex: 1; }
.table-wrap { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); overflow-x: auto; }
table.admin-table { width: 100%; border-collapse: collapse; font-size: .9rem; min-width: 760px; }
.admin-table th, .admin-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
.admin-table th { background: #f6faf9; color: var(--muted); font-size: .8rem; font-weight: 600; white-space: nowrap; }
.admin-table tr:last-child td { border-bottom: 0; }
.admin-table tr.is-hidden td { color: #9aa8a6; background: #fafcfb; }
.admin-table td.ops { white-space: nowrap; text-align: right; }
.admin-table td.ops .btn { margin-left: 4px; }
.admin-table .title-cell { max-width: 380px; }
.admin-table .sub { display: block; font-size: .78rem; color: var(--muted); }
.admin-table .num { text-align: right; font-variant-numeric: tabular-nums; }
.unit-head td { background: var(--primary-light); color: var(--primary-dark); font-weight: 700; }
.cat-head td { background: #eef2f1; font-weight: 700; }
.stat-row { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 16px; }
.stat { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 14px 20px; min-width: 150px; }
.stat .label { font-size: .78rem; color: var(--muted); }
.stat .value { font-size: 1.6rem; font-weight: 700; color: var(--primary-dark); }
.login-card { max-width: 420px; margin: 60px auto; background: var(--card); border-radius: 16px; box-shadow: var(--shadow); padding: 30px; }
.login-card h1 { margin: 0 0 6px; font-size: 1.3rem; color: var(--primary-dark); }
.login-card p { margin: 0 0 18px; color: var(--muted); font-size: .92rem; }
.yt-preview { margin-top: 8px; }
.yt-preview img { width: 200px; border-radius: 8px; display: block; }

@media (max-width: 600px) {
  html { font-size: 15px; }
  .hero { padding: 34px 0 30px; }
  .hero h1 { font-size: 1.55rem; }
  .page-title { font-size: 1.4rem; }
  .item-grid { grid-template-columns: 1fr; }
  .modal { padding: 18px; }
  main { padding-top: 20px; }
}