/* =========================================================
   揚げ鶏々 サイト共通CSS（gensogakusho.com）
   全ページで <link rel="stylesheet" href="../css/common.css"> で読み込む
   （トップは href="css/common.css"）
   ========================================================= */

/* ---------- 色・フォント（ここを変えると全ページに反映） ---------- */
:root {
  color-scheme: light;
  /* 寒色（花浅葱 #1E88A8 が基本）＋白黒＋差し色のベリー */
  --blue: #1e88a8; --blue-d: #0f5a78; --blue-l: #6cc3dc; --blue-xd: #0a3d52;
  --sky: #d2eef5; --sky-2: #eaf7fa; --mist: #eef7f9;
  --ink: #1f2a44; --berry: #c2346f; --berry-l: #f08ab4; --frost: #e3eef5; --paper: #ffffff;
  --grad: linear-gradient(135deg, var(--blue-l) 0%, var(--blue) 50%, var(--blue-d) 100%);
  --f-display: "Dela Gothic One", "Hiragino Kaku Gothic StdN", "Hiragino Sans", "Yu Gothic", sans-serif;
  --f-mid: "Monomaniac One", "RocknRoll One", "Hiragino Maru Gothic ProN", sans-serif;
  --f-body: "RocknRoll One", "Hiragino Maru Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  --f-thin: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  /* 水色の上の白い文字に付ける、濃い青のうすい縁取り＋影 */
  --edge: 0 0 1px rgba(10,61,82,.95), 0 0 2px rgba(10,61,82,.7), 1px 2px 3px rgba(10,61,82,.55);
  /* 太いゴシック体（Dela Gothic One）の文字の大きさの倍率。1 で元の大きさ */
  --dz: 1.08;
  --skew: -14deg;
  --cut: 22px;
}

/* ---------- 土台：白地に灰色のドット ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; overflow-x: clip; }
body { margin: 0; font-family: var(--f-body); color: var(--ink); line-height: 1.95; font-size: 16px; overflow-x: hidden;
  background: #fff radial-gradient(#dde2e8 1.6px, transparent 1.9px) 0 0 / 22px 22px; }
main { overflow-x: clip; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue-d); }
:focus-visible { outline: 3px solid var(--berry); outline-offset: 3px; }
.wrap { width: min(1080px, 100%); margin: 0 auto; padding: 0 24px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- 色の上に重ねる、うすい白のひし形模様 ---------- */
.diamonds { background-image: repeating-conic-gradient(from 45deg, rgba(255,255,255,.09) 0 25%, transparent 0 50%); background-size: 46px 46px; }

/* ---------- ななめのボタン ---------- */
.sk { display: inline-block; transform: skewX(var(--skew)); text-decoration: none; color: var(--ink); background: #fff; border: 2.5px solid var(--ink);
  padding: 7px 22px; box-shadow: 4px 4px 0 var(--ink); transition: transform .15s, box-shadow .15s, background-color .15s; }
.sk > span { display: inline-block; transform: skewX(calc(var(--skew) * -1)); }
.sk:hover { transform: skewX(var(--skew)) translate(-2px, -2px); box-shadow: 6px 6px 0 var(--ink); }
.sk:active { transform: skewX(var(--skew)) translate(2px, 2px); box-shadow: 1px 1px 0 var(--ink); }
.sk:focus-visible { outline: 3px solid var(--berry); outline-offset: 4px; }
.sk.blue { background: var(--blue); color: #fff; text-shadow: var(--edge); }
.sk.berry { background: var(--berry); color: #fff; }
.sk.big { font-family: var(--f-display); font-size: calc(clamp(1rem, 2.4vw, 1.15rem) * var(--dz)); padding: 11px 28px; }

/* ---------- 大見出し（番号つき） ---------- */
.sh { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 16px; margin: 0 0 30px; font-weight: 400; }
.sh-no { display: inline-grid; place-items: center; min-width: 74px; height: 50px; padding: 0 10px; transform: skewX(var(--skew)); background: var(--grad);
  color: #fff; text-shadow: var(--edge); font-family: var(--f-display); font-size: calc(1.5rem * var(--dz)); box-shadow: 4px 4px 0 var(--ink); }
.sh-no span { transform: skewX(14deg); }
.sh-t { font-family: var(--f-display); font-size: calc(clamp(1.5rem, 4.4vw, 2.3rem) * var(--dz)); line-height: 1.25; }
.sh-en { flex-basis: 100%; margin-left: 92px; font-family: var(--f-thin); font-size: .78rem; letter-spacing: .5em; color: var(--blue); }
.sh-en::before { content: ""; display: inline-block; width: 64px; height: 8px; margin-right: 12px; vertical-align: middle;
  background: repeating-linear-gradient(-45deg, var(--blue) 0 2px, transparent 2px 6px); }

/* ---------- 角を切ったパネル ---------- */
.cut-sh { filter: drop-shadow(6px 6px 0 var(--ink)); }
.cut { background: var(--ink); padding: 2.5px; clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut))); }
.cut-in { background: #fff; clip-path: polygon(0 0, calc(100% - var(--cut) + 1px) 0, 100% calc(var(--cut) - 1px), 100% 100%, calc(var(--cut) - 1px) 100%, 0 calc(100% - var(--cut) + 1px)); padding: clamp(20px, 3.6vw, 32px); height: 100%; }
.cut-in.mist { background: var(--mist); }

/* ---------- 背景イラストの帯（.scene） ----------
   使い方: <div class="scene" style="--scene: url(../images/materials/bg-night.webp)" aria-hidden="true"></div>
   イラストをぼかして、花浅葱のグラデとひし形模様を重ね、ゆっくり動かす */
.scene { position: absolute; inset: 0; z-index: 0; overflow: hidden; background: var(--blue-d); pointer-events: none; }
.scene::before { content: ""; position: absolute; inset: -6%; background: var(--scene, none) center / cover no-repeat;
  filter: blur(var(--scene-blur, 3px)); mix-blend-mode: luminosity; opacity: .9; animation: scene-pan 38s ease-in-out infinite alternate; }
.scene::after { content: ""; position: absolute; inset: 0;
  background:
    repeating-conic-gradient(from 45deg, rgba(255,255,255,.08) 0 25%, transparent 0 50%) 0 0 / 46px 46px,
    linear-gradient(110deg, rgba(10,61,82,.92) 0%, rgba(15,90,120,.78) 38%, rgba(30,136,168,.45) 70%, rgba(108,195,220,.18) 100%);
  animation: scene-dia 60s linear infinite; }
@keyframes scene-pan { from { transform: scale(1.04) translate(-1.5%, 0); } to { transform: scale(1.12) translate(1.5%, -2%); } }
@keyframes scene-dia { to { background-position: 460px 230px, 0 0; } }

/* ---------- 下層ページの上部（.pg-head）：背景イラスト＋ななめの切り口 ---------- */
.pg-head { position: relative; isolation: isolate; color: #fff; padding: 18px 0 92px; }
.pg-head .scene { clip-path: polygon(0 0, 100% 0, 100% calc(100% - 64px), 0 100%); }
/* 切り口にそって走る水色の線 */
.pg-head::after { content: ""; position: absolute; z-index: 0; left: 0; right: 0; bottom: -12px; height: 76px; background: var(--blue-l);
  clip-path: polygon(0 64px, 100% 0, 100% 10px, 0 100%); pointer-events: none; }
.pg-head .head { position: relative; z-index: 1; width: min(860px, 100%); display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 0 20px; }
.pg-head .brand { display: inline-flex; align-items: baseline; gap: 10px; font-family: var(--f-display); font-size: calc(1.2rem * var(--dz)); color: #fff; text-decoration: none; text-shadow: 2px 2px 0 rgba(10,61,82,.6); }
.pg-head .brand small { font-family: var(--f-mid); font-size: 1rem; letter-spacing: .04em; }
.pg-head .pg-nav { list-style: none; margin: 14px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 10px 12px; }
.pg-head .pg-nav .sk { padding: 3px 14px; font-size: .84rem; line-height: 1.6; box-shadow: 3px 3px 0 var(--ink); }
.pg-head .pg-nav .sk:hover { background: var(--sky); }
.pg-head .pg-nav .sk[aria-current="page"] { background: var(--berry); color: #fff; }
.pg-head .pg-en { display: inline-block; margin: 30px 0 0; transform: skewX(var(--skew)); background: #fff; color: var(--blue-d); padding: 1px 16px;
  font-family: var(--f-thin); font-size: .74rem; font-weight: 700; letter-spacing: .32em; animation: rise .6s .05s both; }
.pg-head .pg-en > span { display: inline-block; transform: skewX(14deg); }
.pg-head h1 { margin: 12px 0 0; font-family: var(--f-display); font-weight: 400; line-height: 1.2; letter-spacing: .02em;
  font-size: calc(clamp(2rem, 6.8vw, 3.4rem) * var(--dz)); color: #fff; -webkit-text-stroke: .06em var(--ink); paint-order: stroke fill;
  text-shadow: .07em .08em 0 var(--berry); overflow-wrap: anywhere; text-wrap: balance; animation: rise .7s .15s both; }
.pg-head .lead { margin: 12px 0 0; text-shadow: 0 1px 6px rgba(10,61,82,.7); animation: rise .7s .25s both; }
.pg-head .meta { display: inline-block; margin: 10px 0 0; transform: skewX(var(--skew)); padding: 0 14px; background: rgba(10,61,82,.55);
  border: 1.5px solid rgba(255,255,255,.55); font-size: .82rem; letter-spacing: .04em; animation: rise .7s .32s both; }
.pg-head .meta > span { display: inline-block; transform: skewX(14deg); }
.pg-head .mascot { width: clamp(96px, 20vw, 190px); margin-bottom: -84px; position: relative; z-index: 2; }
.pg-head .mascot.walk, .pg-head .mascot.float { width: clamp(80px, 15vw, 140px); }
.pg-head .mascot span { display: block; transform-origin: 50% 100%; }
.pg-head .mascot img { filter: drop-shadow(4px 5px 0 rgba(31,42,68,.2)); }
.pg-head .mascot.me span { animation: bob 3.4s ease-in-out infinite; }
.pg-head .mascot.walk span { animation: step .5s ease-in-out infinite alternate; }
.pg-head .mascot.float span { animation: drift 2.6s ease-in-out infinite; }

@keyframes bob { 0%, 100% { transform: translateY(0) rotate(-3deg); } 50% { transform: translateY(-10px) rotate(3deg); } }
@keyframes step { from { transform: translateY(0) rotate(-3deg); } to { transform: translateY(-6px) rotate(3deg); } }
@keyframes drift { 0%, 100% { transform: translateY(0) rotate(-4deg); } 50% { transform: translateY(-12px) rotate(4deg); } }

@media (max-width: 600px) {
  .pg-head { padding-bottom: 80px; }
  .pg-head .head { grid-template-columns: minmax(0, 1fr); }
  .pg-head .mascot { position: absolute; right: 14px; bottom: -58px; width: 84px; margin: 0; }
  .pg-head .mascot.walk, .pg-head .mascot.float { width: 66px; }
  .pg-head .pg-nav { gap: 8px 10px; }
  .pg-head .pg-nav .sk { font-size: .78rem; padding: 2px 11px; }
}

/* ---------- 出てくるアニメーション（JSで .in をつける） ---------- */
.rv { opacity: 0; transform: translateY(24px); transition: opacity .7s, transform .7s cubic-bezier(.2, 1, .3, 1); }
.rv.in { opacity: 1; transform: none; }
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
/* ひし形模様をゆっくり流す（--ds にひし形のサイズを入れる） */
@keyframes dia-drift { to { background-position: calc(var(--ds, 46px) * 10) calc(var(--ds, 46px) * 5); } }
@keyframes hop { 0%, 100% { transform: translateY(0) rotate(-3deg); } 50% { transform: translateY(-10px) rotate(3deg); } }

/* ---------- フッター（全ページ共通） ---------- */
footer { position: relative; background: var(--frost); padding: 0 0 34px; text-align: center; font-size: .9rem; }
.fwave { position: absolute; top: -38px; left: 0; width: 100%; height: 40px; display: block; }
.duo { display: flex; justify-content: center; align-items: flex-end; gap: 10px; transform: translateY(-62px); margin-bottom: -44px; }
.duo span { display: block; width: clamp(92px, 18vw, 150px); transform-origin: 50% 100%; }
.lean-l { animation: leanL 3.2s ease-in-out infinite; }
.lean-r { animation: leanR 3.2s ease-in-out infinite; }
footer ul { list-style: none; margin: 0 0 14px; padding: 0 16px; display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 18px; }
footer p { margin: 0 0 2px; }
footer .copy { font-family: var(--f-mid); font-size: 1rem; }
@keyframes leanL { 0%, 100% { transform: rotate(-3deg); } 50% { transform: rotate(4deg) translateX(6px); } }
@keyframes leanR { 0%, 100% { transform: rotate(3deg); } 50% { transform: rotate(-4deg) translateX(-6px); } }

.ft-nav { max-width: 900px; margin: 0 auto 16px; padding: 0 16px; }
.ft-label { margin: 0 0 8px !important; font-family: var(--f-thin); font-size: .68rem !important; letter-spacing: .45em; opacity: .6; }
footer .ft-main { list-style: none; margin: 0 0 18px; padding: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 14px; }
footer .ft-main a { display: inline-block; transform: skewX(var(--skew)); background: #fff; color: var(--ink); border: 2.5px solid var(--ink); box-shadow: 3px 3px 0 var(--ink);
  padding: 6px 18px; text-decoration: none; font-family: var(--f-display); font-size: calc(clamp(.9rem, 2.2vw, 1.02rem) * var(--dz)); line-height: 1.5; transition: transform .15s, box-shadow .15s; }
footer .ft-main a > span { display: inline-block; transform: skewX(14deg); }
footer .ft-main a:hover { transform: skewX(var(--skew)) translate(-2px, -2px); box-shadow: 5px 5px 0 var(--ink); }
footer .ft-main a:focus-visible { outline: 3px solid var(--berry); outline-offset: 3px; }
footer .ft-main a[aria-current="page"] { background: var(--grad); color: #fff; text-shadow: var(--edge); }
footer .ft-sub { list-style: none; margin: 0 0 14px; padding: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 2px 18px; font-size: .78rem; line-height: 1.9; }
footer .ft-sub a { color: var(--ink); text-decoration-color: rgba(31,42,68,.45); text-underline-offset: 3px; }
footer .ft-sub a[aria-current="page"] { font-weight: 700; }

/* ---------- 共通のレスポンシブ ---------- */
@media (max-width: 560px) {
  .wrap { padding: 0 18px; }
  .sh-en { margin-left: 0; }
}

/* ---------- 動きを減らす設定の人には止める ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .rv { opacity: 1; transform: none; }
}