:root {
    color-scheme: light;
    font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.7;
    --bg: #fffaf3;
    --surface: #fff;
    --text: #302e29;
    --muted: #605d54;
    --line: #d9ded3;
    --soft: #edf2e8;
    --glass: #fffaf3d9;
    --green: #28634f;
    --coral: #ff956e;
    --shadow: 0 10px 35px #302e2908;
}
* { box-sizing: border-box; }
body { margin: 0; word-break: keep-all; overflow-wrap: anywhere; }
h1, h2, h3, .card-title, .note-title { text-wrap: balance; }
p { text-wrap: pretty; }
main, footer { width: min(100% - 2rem, 64rem); margin: auto; }
.topbar { position: relative; z-index: 10; min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .5rem max(1rem, calc((100vw - 64rem) / 2)); background: var(--glass); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid var(--line); }
.topbar .request-link { font-size: .75rem; color: var(--muted); }
.brand { font-weight: 700; font-size: .9rem; text-decoration: none; }
.hero { text-align: center; padding: 3rem 0 4rem; }
.eyebrow { font-weight: 600; font-size: .85rem; color: var(--muted); }
h1 { margin: 1.3rem 0 1.5rem; font-size: clamp(2.8rem, 8.5vw, 6rem); line-height: 1.15; letter-spacing: -.055em; font-weight: 800; }

.intro { color: var(--muted); font-size: clamp(1rem, 2vw, 1.2rem); }
.upcoming { margin: 2rem 0 1rem; color: var(--muted); font-size: .9rem; }
.upcoming strong { color: var(--text); margin-left: .5rem; }
.keyword { display: block; max-width: 40rem; margin: auto; padding: 0; }
input[type=search] { display: block; width: 100%; min-width: 0; min-height: 64px; padding: 1rem 1.6rem; border: 1px solid var(--line); border-radius: 100px; background: var(--surface); color: var(--text); box-shadow: var(--shadow); }
.notice { margin: 1rem 0; font-size: .75rem; color: var(--muted); }
button, input, summary, a { font: inherit; }
button, summary, a { min-height: 44px; }
a { display: inline-flex; align-items: center; color: inherit; }
button { border: 1px solid var(--line); background: var(--surface); color: var(--text); padding: .65rem 1.1rem; border-radius: 100px; cursor: pointer; max-width: 100%; white-space: normal; }
:focus-visible { outline: 3px solid var(--text); outline-offset: 4px; }
.discovery { padding-bottom: 1rem; }
.field-chips { display: flex; gap: .5rem; padding: .5rem .25rem 1rem; }
.field-chip { flex-shrink: 0; }
.field-chip[aria-pressed=true] { background: var(--green); color: var(--surface); border-color: var(--green); }
.filter-row { display: grid; grid-template-columns: 6rem minmax(0, 1fr); gap: .75rem; margin: 1rem 0 2rem; }
.filters { grid-column: 1 / -1; grid-row: 1; }
.filter-row .selected-chips { grid-column: 2; grid-row: 1; align-self: start; }
summary { cursor: pointer; width: fit-content; padding: .6rem 1.4rem; border: 1px solid var(--line); border-radius: 100px; font-weight: 600; }
.filter-panel { margin-top: 1rem; padding: 1.5rem; background: var(--surface); border: 1px solid var(--line); border-radius: 28px; }
fieldset { border: 0; border-bottom: 1px solid var(--line); min-width: 0; padding: 1rem 0; margin: 0 0 .5rem; }
legend { font-weight: 600; }
label { display: inline-flex; align-items: center; gap: .5rem; min-height: 44px; padding: .4rem .7rem .4rem 0; }
input[type=checkbox] { width: 1.25rem; height: 1.25rem; flex-shrink: 0; accent-color: var(--text); }
.result-heading { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.result-heading h2 { font-size: clamp(1.5rem, 4vw, 2.2rem); letter-spacing: -.04em; margin: 0; }
#count { color: var(--muted); font-weight: 500; }
.selected-chips { display: flex; flex-wrap: wrap; gap: .5rem; margin: 0; flex: 1; }
.selected-chip { background: var(--soft); font-size: .8rem; border-color: transparent; }
.month-group { margin: 1rem 0 3rem; }
.month-heading { font-size: 1.6rem; letter-spacing: -.04em; margin: 1.5rem 0 1rem; }
.card { display: grid; grid-template-columns: 4rem minmax(0, 1fr); gap: 1rem; border-radius: 28px; padding: 1.4rem; margin: 0 0 1rem; background: var(--surface); box-shadow: var(--shadow); transition: transform .25s ease, box-shadow .25s ease; }
.date-block { display: flex; flex-direction: column; text-align: center; color: var(--muted); font-size: .75rem; padding-top: .25rem; }
.date-day { font-size: clamp(1.4rem, 4vw, 2.4rem); font-weight: 700; color: var(--text); line-height: 1.15; letter-spacing: -.06em; white-space: nowrap; }
.date-day-long { font-size: clamp(1rem, 3.2vw, 1.4rem); letter-spacing: -.02em; white-space: normal; overflow-wrap: normal; }
.card-body { min-width: 0; }
.card-title { display: block; width: 100%; text-align: left; font-size: 1.2rem; font-weight: 700; line-height: 1.5; padding: .25rem 1.5rem .5rem 0; border: 0; border-radius: 0; position: relative; }
.card-title::after { content: '+'; position: absolute; right: 0; top: .25rem; color: var(--muted); font-weight: 400; }
.card-title[aria-expanded=true]::after { content: '−'; }
.card p { margin: .35rem 0; }
.date, .metadata { color: var(--muted); font-size: .8rem; }
.badges { display: flex; flex-wrap: wrap; gap: .35rem; margin: .65rem 0; }
.badges span { border-radius: 100px; padding: .15rem .6rem; background: var(--soft); color: var(--muted); font-size: .7rem; }
.badges .badge-soon { background: var(--coral); color: var(--text); font-weight: 600; }
.card-detail { grid-column: 1 / -1; border-top: 1px solid var(--line); padding-top: 1.2rem; font-size: .9rem; animation: reveal .3s ease both; }
.organizer-link { display: flex; justify-content: center; text-align: center; padding: 1rem 1.5rem; border-radius: 100px; margin-top: 1.5rem; text-decoration: none; font-weight: 600; }
.organizer-link-open { background: var(--coral); color: var(--text); }
.organizer-link-muted { background: var(--soft); color: var(--text); }
#empty, #error, #loading { text-align: center; padding: 2rem 1rem; }
footer { border-top: 1px solid var(--line); padding: 2rem 0 3rem; color: var(--muted); font-size: .75rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
[hidden] { display: none!important; }
@keyframes reveal { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }
@media (hover: hover) { .card:hover { transform: translateY(-3px); box-shadow: 0 16px 40px #302e2912; } button:hover { filter: brightness(.96); } }
@media (min-width: 42rem) { .card { grid-template-columns: 6.5rem minmax(0, 1fr); gap: 1.8rem; padding: 2rem; } .card-detail { grid-column: 2; } .date-day { font-size: 2.6rem; } .date-day-long { font-size: 1.5rem; } }
@media (max-width: 35rem) { .hero { padding-top: 3rem; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none!important; transition: none!important; scroll-behavior: auto!important; } .card:hover { transform: none; } }
/* 対応ブラウザーでは高さもなめらかに変える。未対応でも開閉は使える。 */
@supports (interpolate-size: allow-keywords) and (transition-behavior: allow-discrete) {
    .card-detail {
        interpolate-size: allow-keywords;
        height: auto;
        overflow: clip;
        animation: none;
        transition: height .3s ease, opacity .3s ease, padding-top .3s ease, display .3s allow-discrete;
    }
    .card-detail[hidden] { height: 0; opacity: 0; padding-top: 0; }
    @starting-style {
        .card-detail { height: 0; opacity: 0; padding-top: 0; }
    }
}

.card-summary { white-space: normal; }
#request { scroll-margin-top: 5rem; }

.page-tabs { display: flex; gap: .5rem; padding-top: 1.5rem; }
.page-tabs button { flex: 1; min-width: 44px; min-height: 48px; }
.page-tabs [aria-selected=true] { background: var(--green); color: var(--surface); }
.page-tabs + #event-panel .hero { padding-top: 3rem; }
.guide-title { font-size: clamp(2rem, 6vw, 3rem); }
.qualification-card { display: block; }
.qualification-card .card-detail { margin-top: 1rem; }

h1, .month-heading, .result-heading h2, .brand { color: var(--green); }
.field-chips { flex-wrap: wrap; overflow: visible; }
.field-chip { flex-shrink: 1; display: inline-flex; align-items: center; justify-content: center; gap: .4rem; }
.kind-icon { flex-shrink: 0; }
.topbar { flex-wrap: wrap; }
footer { font-size: .9rem; }
footer h2 { color: var(--green); font-size: 1.2rem; }
footer a { color: var(--green); }
@media (max-width: 35rem) {
    .card { grid-template-columns: minmax(0, 1fr); padding: 1.2rem; }
    .date-block { flex-direction: row; align-items: baseline; gap: .5rem; text-align: left; }
    .filter-row { display: flex; flex-direction: column; }
    .filter-panel { padding: 1rem; }
}

/* 外部画像なしの note・LINE 案内 */
.topbar { position: sticky; top: 0; z-index: 10; flex-wrap: wrap; }
#social-nav, #social-intro { display: flex; gap: .5rem; flex-wrap: wrap; }
.social-button { display: inline-flex; align-items: center; justify-content: center; gap: .4rem; min-height: 44px; padding: .5rem .8rem; border-radius: 12px; text-decoration: none; font-weight: 700; overflow-wrap: anywhere; }
.social-note { background: #242424; color: #fff; }
.social-line { background: #06c755; color: #10341d; }
.social-card, .article-links { background: #edf2e8; padding: 1rem; border-radius: 16px; margin: 1rem 0; overflow-wrap: anywhere; }
.article-links a { display: block; padding: .6rem 0; min-height: 44px; }
@media (max-width: 480px) { #social-nav .social-button { font-size: .75rem; padding: .4rem; } .topbar .brand { font-size: .9rem; } }

.page-tabs button { min-width: 0; padding: .7rem .35rem; overflow-wrap: anywhere; }
.note-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.note-card { background: #fff; border: 1px solid var(--border, #deded7); border-radius: 14px; padding: 1rem; overflow-wrap: anywhere; }
.note-label { display: inline-block; background: #222; color: #fff; border-radius: 4px; font-size: .75rem; padding: .15rem .5rem; margin-right: .5rem; }
.series-label { display: inline-block; font-size: .85rem; color: var(--green); }
.note-title { font-weight: 700; }
.note-card time { display: block; font-size: .85rem; color: #555; }
.note-card a, #np-official a, #np-all { display: block; min-height: 44px; padding: .6rem 0; }
#np-panel h2 { margin-top: 2rem; }
/* スマホでは4つのタブを2×2に並べて、言葉の途中で折れないようにする。 */
@media (max-width: 35rem) { .note-grid { grid-template-columns: minmax(0, 1fr); } .page-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: .4rem; } .page-tabs button { font-size: .9rem; overflow-wrap: normal; word-break: keep-all; } }

/* 短いかぎかっこの名前（phrase.js が付ける）は途中で折らない。 */
.nobr { white-space: nowrap; }