@charset "utf-8";
/* 高校生国際美術展 共通スタイル（2026-10 作り直し）
   パソコン：これまでどおり幅800pxの枠。スマホ（820px未満）：画面の幅に合わせて縦に並べる */

:root{
  --ink:#333;
  --ink-soft:#666;
  --navy:#2b3996;
  --navy-deep:#1b2a6b;
  --navy-soft:#d9dcef;
  --red:#d9001b;
  --tile:#5f8ea8;
  --line:#ebe9e1;
  --link:#0000ff;
  --mincho:"Zen Old Mincho","Hiragino Mincho ProN","Yu Mincho",serif;
  --gothic:"Hiragino Kaku Gothic ProN","Hiragino Sans","Meiryo",sans-serif;
}

/* ---- 基本 ---- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;color:var(--ink);font:13px/1.6 var(--gothic);background:#fff url(img/bg_all.jpg) repeat-x}
h1,h2,h3,h4,p,ul,ol,dl,dd{margin:0;padding:0}
ul,ol{list-style:none}
img{border:0;max-width:100%;height:auto;vertical-align:bottom}
a{color:var(--link)}
a:hover{color:#0056b3}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---- 枠 ---- */
.page{width:800px;margin:0 auto;background:#fff url(img/bg_kage.gif) repeat-y}
.page-inner{width:796px;margin:0 auto;background:url(img/bg_contents.jpg) no-repeat top}
.main{width:730px;margin:0 auto;padding-bottom:10px}

/* ---- ヘッダー ---- */
.site-header{display:flex;justify-content:space-between;height:160px;padding-left:25px}
.site-logo{display:block;width:336px;height:130px;background:url(img/bg_hed.jpg) no-repeat;text-indent:-9999px;overflow:hidden}
.site-logo a{display:block;height:100%}
.gnav{position:relative;width:356px;height:160px}
.gnav li{position:absolute;width:65px;height:65px}
.gnav a{display:block;height:65px;text-indent:-9999px;overflow:hidden;background-repeat:no-repeat}
.gnav a:hover,.gnav a[aria-current="page"]{background-position:bottom}
.gnav .n_1{top:50px;left:0}
.gnav .n_2{top:40px;left:80px}
.gnav .n_3{top:30px;left:160px}
.gnav .n_4{top:5px;left:240px}
.gnav .n_1 a{background-image:url(img/navi_home.gif)}
.gnav .n_2 a{background-image:url(img/navi_invitation.gif)}
.gnav .n_3 a{background-image:url(img/navi_archive.gif)}
.gnav .n_4 a{background-image:url(img/navi_contact.gif)}

/* ---- トップ：キービジュアル ---- */
.key-visual{margin-bottom:10px}
.key-visual img{display:block;width:100%}

/* ---- トップ：会期のお知らせ ---- */
.notice{border:1px solid var(--navy);margin-bottom:15px;text-align:center;background:#fff}
.notice-title{font:600 34px/1.2 var(--mincho);color:var(--navy);padding:16px 10px 10px}
.notice-title small{font-size:20px}
.notice-term{background:var(--navy-soft);color:var(--navy);font-weight:bold;font-size:20px;padding:6px 10px}
.notice-term .wd{display:inline-block;background:var(--navy);color:#fff;font-size:13px;line-height:1;padding:3px 2px;margin:0 2px;vertical-align:3px}
.notice-term .note{font-size:11px;font-weight:normal;color:#333;margin-left:10px}
.notice-place{padding:12px 10px 4px;font-size:19px;font-weight:bold;color:#222}
.notice-place span{font-size:15px}
.notice-addr{font-size:14px;font-weight:bold;color:#222}
.notice-show{color:var(--red);font-size:14px;font-weight:bold;padding:6px 10px 12px}
.notice-link{display:block;background:var(--navy);color:#fff !important;text-decoration:none;font-size:18px;font-weight:bold;letter-spacing:.1em;padding:14px 10px}
.notice-link::after{content:"";display:inline-block;margin-left:12px;border:7px solid transparent;border-left:10px solid #fff;border-right:0;vertical-align:-1px}
.notice-link:hover{background:var(--navy-deep);color:#fff}

/* ---- トップ：お知らせの帯（審査結果・表彰式・Web美術館） ---- */
.band{display:flex;align-items:center;text-decoration:none;margin-bottom:10px;min-height:96px}
.band-result{justify-content:center;gap:40px;background:radial-gradient(ellipse at 70% 40%,#2c5fa3 0%,#173b7a 55%,#0d2350 100%);color:#fff !important;padding:12px 20px}
.band-result .ring{display:flex;align-items:center;justify-content:center;width:88px;height:88px;border:1.5px solid rgba(255,255,255,.85);border-radius:50%;font:600 22px/1 var(--mincho)}
.band-result .ring small{font-size:15px}
.band-result .t{font:600 30px/1.3 var(--mincho);letter-spacing:.04em}
.band-result .t em{font-style:normal;color:#ffea00;margin-left:30px}
.band-result:hover{filter:brightness(1.08)}
.band-video{border:4px solid var(--red);background:#fff;padding:0;color:var(--ink) !important}
.band-video .body{flex:1;padding:8px 18px}
.band-video .pre{font:600 16px/1.3 var(--mincho);color:#222}
.band-video .pre small{font-size:13px}
.band-video .big{font:700 36px/1.25 var(--mincho);color:var(--red);letter-spacing:.06em}
.band-video .sub{font-size:13px;color:#222;text-align:right}
.band-video .yt{align-self:stretch;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;width:165px;background:var(--red);color:#fff;font:bold 30px/1 Arial,Helvetica,sans-serif;letter-spacing:-.02em}
.band-video .yt small{font-size:11px;letter-spacing:.06em;font-weight:bold}
.band-video:hover .big{text-decoration:underline}

/* ---- 新着情報 ---- */
.topics h2{color:#4a5c94;font-size:20px;font-weight:bold;margin:30px 10px}
.topics ul{border-top:1px solid var(--line);margin:0 0 20px}
.topics li{display:flex;padding:15px;border-bottom:1px solid var(--line)}
.topics .day{flex:none;width:55px;font-size:11px}
.topics .label{flex:none;align-self:flex-start;border-radius:3px;color:#fff;padding:0 5px;margin:0 20px;background:var(--navy);line-height:1.6;font-size:11px}
.topics .text{font-size:11px}
.topics .text a{color:var(--link)}

/* ---- 3つのタイル ---- */
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:20px 0}
.tile{position:relative;display:flex;align-items:center;min-height:148px;padding:20px 28px;background:var(--tile);border:3px solid #fff;outline:1px solid #9bb6c6;color:#fff !important;text-decoration:none;font-size:22px;font-weight:bold;line-height:1.6;letter-spacing:.04em;cursor:pointer}
.tile::after{content:"";position:absolute;right:6px;bottom:6px;border:9px solid transparent;border-right-color:#fff;border-bottom-color:#fff}
.tile:hover{filter:brightness(1.1)}
.tile .ico{display:inline-block;margin-left:6px;vertical-align:-2px}

/* ---- 写真のバナー ---- */
.photo-banners{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:20px 0}
.photo-banners img{display:block;width:100%;border:1px solid #ccc}

/* ---- 過去の審査と展示の様子（ダイアログ） ---- */
.past-dialog{max-width:650px;width:calc(100% - 32px);max-height:80vh;border:0;border-radius:8px;padding:20px;box-shadow:0 4px 15px rgba(0,0,0,.3)}
.past-dialog::backdrop{background:rgba(0,0,0,.6)}
.past-dialog .head{position:relative;font-weight:bold;padding:0 30px 10px 0;border-bottom:1px solid #ccc;margin-bottom:15px}
.past-dialog .close{position:absolute;top:-4px;right:0;border:0;background:none;font-size:20px;font-weight:bold;color:#666;cursor:pointer}
.past-dialog dt{font-weight:bold;margin-top:10px;color:#333}
.past-dialog dd{margin:0 0 5px 15px;word-break:break-all}

/* ---- フッター ---- */
.to-top{display:flex;justify-content:flex-end;margin:30px 40px 0 0}
.site-footer{margin:0 2px;padding:10px 0;color:#666;font-size:10px;letter-spacing:1px;text-align:center;border-top:2px solid #999;background:#e6e6e6}

/* =====================================================================
   スマホ（820px未満）
   ===================================================================== */
@media (max-width:819px){
  body{font-size:15px;background:#fff linear-gradient(#bfe6f7,#fff 220px) no-repeat}
  .page,.page-inner,.main{width:auto}
  .page{background:#fff}
  .page-inner{background:none}
  .main{padding:0 16px 10px}
  .site-header{flex-direction:column;align-items:center;height:auto;padding:8px 16px 4px}
  .site-logo{width:100%;max-width:336px;aspect-ratio:336/130;height:auto;background-size:contain}
  .gnav{width:100%;max-width:360px;height:auto;display:flex;justify-content:space-around;margin:6px 0 10px}
  .gnav li{position:static}
  .notice-title{font-size:26px}
  .notice-title small{font-size:16px}
  .notice-term{font-size:16px}
  .notice-term .note{display:block;margin:2px 0 0}
  .notice-place{font-size:17px}
  .notice-place span{font-size:13px}
  .notice-link{font-size:16px}
  .band{min-height:0}
  .band-result{flex-direction:column;gap:8px;padding:16px}
  .band-result .ring{width:64px;height:64px;font-size:17px}
  .band-result .t{font-size:22px;text-align:center}
  .band-result .t em{display:block;margin:0}
  .band-video{flex-direction:column}
  .band-video .body{padding:10px 12px}
  .band-video .big{font-size:26px}
  .band-video .sub{text-align:left}
  .band-video .yt{width:100%;flex-direction:row;padding:8px;font-size:22px}
  .topics h2{margin:24px 0 12px}
  .topics li{flex-wrap:wrap;padding:12px 4px}
  .topics .day,.topics .label,.topics .text{font-size:13px}
  .topics .day{width:auto;margin-right:10px}
  .topics .label{margin:0}
  .topics .text{flex-basis:100%;margin-top:6px}
  .tiles{grid-template-columns:1fr;gap:10px}
  .tile{min-height:0;padding:16px 20px;font-size:18px}
  .tile br{display:none}
  .photo-banners{grid-template-columns:1fr}
  .to-top{margin:20px 16px 0 0}
  .site-footer{font-size:11px;padding:10px 12px;letter-spacing:0}
}
.band-video .pre,.band-video .big,.band-video .sub{display:block}
button.tile{text-align:left;font-family:inherit;width:100%}
@media (max-width:819px){.band-video .pre .date{display:block}}

/* ---- スマホ・狭い画面のヘッダー（2026-10-16 社長の指摘：左右の余白が大きい） ----
   パソコンと同じ構図（森と弧の背景・左にロゴ）を画面幅に合わせて縮小し、ナビは下に並べる */
@media (max-width:819px){
  .site-header{display:block;position:relative;height:auto;padding:0;background:none}
  .site-header::before{content:"";display:block;aspect-ratio:796/150;background:url(img/bg_contents.jpg) center top/100% auto no-repeat}
  .site-logo{position:absolute;left:3.14%;top:0;width:42.2%;max-width:none;aspect-ratio:336/130;height:auto;background-size:100% 100%}
  .gnav{position:static;display:flex;justify-content:center;gap:10px;width:auto;max-width:none;height:auto;margin:6px auto 4px}
  .gnav li{position:static;width:58px;height:58px}
  .gnav a{height:58px;background-size:100% 200%;background-position:center top}
  .gnav a:hover,.gnav a[aria-current="page"]{background-position:center bottom}
}
@media (max-width:559px){
  /* 小さい画面では背景の右側を少し切って、ロゴを大きく見せる */
  .site-header::before{aspect-ratio:590/150;background-size:135% auto;background-position:left top}
  .site-logo{left:4.24%;width:57%}
}

/* ---- 2026-10-16 社長の指摘で調整 ---- */
/* 新着情報の文字を読みやすく */
.topics li{padding:14px 15px}
.topics .day{width:80px;font-size:13px}
.topics .label{font-size:12px;padding:1px 6px}
.topics .text{font-size:14px;line-height:1.7}
@media (max-width:819px){
  .topics .day,.topics .text{font-size:15px}
  .topics .label{font-size:13px}
  /* 狭い画面のナビは、絵のアイコンをやめて文字のボタンを4つ均等に並べる */
  .gnav{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;max-width:560px;margin:8px auto 6px;padding:0 12px}
  .gnav li{width:auto;height:auto}
  .gnav a,.gnav a:hover,.gnav a[aria-current="page"]{height:auto;min-height:44px;display:flex;align-items:center;justify-content:center;text-indent:0;background:#fff;border:1px solid #c9cfe3;border-radius:6px;color:var(--navy);font-size:13px;font-weight:bold;line-height:1.3;text-align:center;text-decoration:none;padding:4px 2px}
  .gnav li a{background-image:none !important}
  .gnav a[aria-current="page"]{background:var(--navy);border-color:var(--navy);color:#fff}
}

/* ---- 字体の使い分け（2026-10-16 社長と決定） ----
   雰囲気を伝える短い文：明朝（Zen Old Mincho）／条件を細かく読ませる文：ゴシック（Noto Sans JP） */
:root{--gothic:"Noto Sans JP","Hiragino Kaku Gothic ProN","Hiragino Sans","Meiryo",sans-serif;--mincho-body:"Zen Old Mincho","Hiragino Mincho ProN","Yu Mincho",serif}
body{font-family:var(--gothic)}
.topics h2{font-family:var(--mincho);font-weight:600;letter-spacing:.06em}
.topics .text,.topics .day{font-family:var(--mincho-body);font-weight:400}
.topics .text{font-size:15px;line-height:1.8}
.topics .day{font-size:14px}
.notice-show,.band-video .sub{font-family:var(--mincho-body)}
.site-footer{font-family:var(--gothic)}
@media (max-width:819px){
  /* 「実行委員会から」を1行に収める */
  .gnav a,.gnav a:hover,.gnav a[aria-current="page"]{font-size:clamp(11px,3.3vw,13px);letter-spacing:-.02em;white-space:nowrap;padding:4px 1px}
}
/* リンクの色を落ち着いた紺に（純粋な青をやめる）。新着情報など文章内は控えめな下線 */
a{color:#1f4fa0}
a:hover{color:#0d2f6e}
.topics .text a{color:#1f4fa0;text-decoration:underline;text-decoration-color:rgba(31,79,160,.35);text-underline-offset:3px}
.topics .text a:hover{text-decoration-color:currentColor}

/* ---- フッターとページ先頭ボタン（2026-10-16 作り直し） ---- */
.to-top{display:flex;justify-content:flex-end;margin:32px 24px 14px}
.to-top a{display:inline-flex;align-items:center;gap:6px;padding:7px 16px;border:1px solid #c9cfe3;border-radius:999px;background:#fff;color:#2b3996;font:600 12px/1 "Noto Sans JP",sans-serif;letter-spacing:.14em;text-decoration:none}
.to-top a span{font-size:13px;letter-spacing:0}
.to-top a:hover{background:#2b3996;border-color:#2b3996;color:#fff}
.site-footer{margin:0;padding:22px 16px 18px;background:#1b2a6b;border-top:3px solid #3fc3c9;color:#cfd5ec;text-align:center;font-family:"Noto Sans JP",sans-serif;letter-spacing:.04em}
.site-footer .fnav{display:flex;flex-wrap:wrap;justify-content:center;gap:4px 20px;margin-bottom:12px}
.site-footer .fnav a{color:#fff;font-size:13px;text-decoration:none}
.site-footer .fnav a:hover{text-decoration:underline;text-underline-offset:3px}
.site-footer .ftag{font:600 15px/1.6 var(--mincho);color:#fff;letter-spacing:.12em;margin-bottom:4px}
.site-footer .fcopy{font-size:11px;color:#9aa5cf;letter-spacing:.06em}
@media (max-width:819px){
  .to-top{margin:24px 16px 12px}
  .site-footer .fnav{gap:8px 16px}
  .site-footer .fnav a{font-size:14px}
}

/* ==== トップの余白のリズム（2026-10-16 仕上げ）
   同じまとまりの中は12px、まとまりとまとまりの間は28px にそろえる
   まとまり：①キービジュアル＋会期 ②審査結果・表彰式・Web美術館の帯 ③新着情報 ④3つのタイル＋写真のバナー ==== */
.key-visual{margin-bottom:12px}
.notice{margin-bottom:28px}
.band{margin-bottom:12px}
.band + .topics{margin-top:28px}
.topics h2{margin:0 0 12px;padding:0 4px}
.topics ul{margin:0}
.tiles{margin:28px 0 12px;gap:12px}
.photo-banners{margin:0;gap:12px}
@media (max-width:819px){
  .key-visual{margin-bottom:12px}
  .notice{margin-bottom:24px}
  .band + .topics{margin-top:24px}
  .tiles{margin:24px 0 12px}
}
/* 仕上げ：新着情報の見出しの左端を、一覧の文字の左端（15px）にそろえる。会期の注記を少し大きく */
.topics h2{padding:0 15px}
.notice-term .note{font-size:12px}
/* タイルは、写真のバナーと同じ1本線の枠に（二重枠をやめる） */
.tile{border:0;outline:0;box-shadow:inset 0 0 0 1px rgba(255,255,255,.35)}
.photo-banners img{border:0}
@media (max-width:819px){.topics h2{padding:0 4px}}

/* ---- 学校コード検索（ダイアログ） 2026-10-16 ---- */
.school-dialog{max-width:720px;width:calc(100% - 32px);height:min(80vh,720px);display:none;flex-direction:column;padding:20px 22px}
.school-dialog[open]{display:flex}
.school-form{display:grid;grid-template-columns:1fr 1fr;gap:10px 14px;margin-bottom:10px}
.school-form label{display:flex;flex-direction:column;gap:4px;font-size:13px;font-weight:bold;color:#2b3996}
.school-form input{font:inherit;font-weight:normal;font-size:16px;color:#222;padding:9px 12px;border:1px solid #c9cfe3;border-radius:6px}
.school-form input:focus{outline:2px solid #3fc3c9;border-color:#3fc3c9}
.school-count{font-size:13px;color:#555;margin:2px 0 8px}
.school-results{flex:1;overflow:auto;border-top:1px solid #e3e6f0;-webkit-overflow-scrolling:touch}
.school-results table{width:100%;border-collapse:collapse;font-size:14px}
.school-results th{position:sticky;top:0;background:#f4f5fa;color:#2b3996;text-align:left;font-size:12px;padding:8px 10px;border-bottom:1px solid #d9dcef}
.school-results td{padding:9px 10px;border-bottom:1px solid #eef0f6;vertical-align:top;line-height:1.5}
.school-results .code{font-family:"SFMono-Regular",Consolas,monospace;font-weight:bold;font-size:15px;color:#1b2a6b;white-space:nowrap;letter-spacing:.04em}
.school-results .addr{color:#666;font-size:13px}
.school-note{font-size:12px;color:#777;margin-top:10px}
@media (max-width:819px){
  .school-dialog{height:calc(100vh - 32px);padding:16px}
  .school-form{grid-template-columns:1fr}
  .school-results thead{display:none}
  .school-results tr{display:grid;grid-template-columns:auto 1fr;gap:2px 12px;padding:10px 4px;border-bottom:1px solid #eef0f6}
  .school-results td{display:block;padding:0;border:0}
  .school-results .code{grid-row:span 2;align-self:start;padding-top:1px}
}