/* BIMのコラージュに合わせた白・墨色・赤のテーマ。
   共通レイアウトは styles.css、テーマの調整はこのファイルで管理します。 */
.hero .hero-content{grid-template-columns:minmax(0,1.2fr) auto;gap:32px;align-items:center;padding-block:34px}
.hero .hero-actions{justify-content:flex-end}
.intro.section{grid-template-columns:minmax(240px,.65fr) minmax(0,1.35fr);gap:48px;align-items:start;padding-block:76px}
.intro .section-heading{margin:0}
.intro .intro-copy{align-self:start}.intro .intro-copy p{margin:0;line-height:2;white-space:pre-line}
.partners #organizer-logos img,.partners #supporter-logos img{width:520px;max-width:100%;height:auto}
@media(max-width:1000px){.hero .hero-content{grid-template-columns:minmax(0,1fr)}.hero .hero-actions{justify-content:flex-start}.intro.section{grid-template-columns:minmax(0,1fr);gap:24px;padding-block:56px}}
.venue-details{container-type:inline-size;min-width:0}
.venue-details h3.venue-name{white-space:nowrap;font-size:clamp(.75rem,5.3cqw,1.5rem);line-height:1.6;margin:0 0 22px;padding:0 0 18px;border-bottom:3px solid var(--accent);letter-spacing:-.035em}
.faq-item summary i:before{top:9px;left:2px;width:16px;height:2px;background:#171719;transform:none;transition:none}
.faq-item summary i:after{top:2px;left:9px;width:2px;height:16px;background:#171719;transform:none;transition:none}
.faq-item[open] summary i:after{transform:none;opacity:0}
.outline-list a[href^="mailto:"]{text-decoration:underline;text-underline-offset:4px;overflow-wrap:anywhere}
.program .program-body>p{white-space:pre-line}
#sponsor-logos>.sponsor-logo{max-width:520px;min-height:0;padding:20px 0;flex-basis:auto}
@media(max-width:600px){.venue-name{padding:22px 16px}#sponsor-logos>.sponsor-logo{width:100%;max-width:520px;padding:16px 0}}
.program .program-meta .program-end{font-size:.95rem;color:#606066}
.program .program-body h3{white-space:pre-line;overflow-wrap:anywhere}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.program .program-list{border:0;display:grid;gap:28px}
.program .program-item{border:1px solid #dedee1;background:#fff;grid-template-columns:150px minmax(0,1fr)}
.program .program-meta{padding:32px 24px;gap:12px;border-color:#dedee1}
.program .program-meta small{margin-top:0}
.program .program-body{padding:32px;min-width:0}
.program .program-index{position:static;display:block;font-size:.85rem;color:#a1a1a8;margin-bottom:14px}
.program .program-body h3{font-size:clamp(1.2rem,2.2vw,1.7rem);line-height:1.6}
.program .summary-label{font-size:.875rem;font-weight:700;color:#171719;margin:22px 0 8px}
.session-speakers{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:30px;padding-top:28px;border-top:1px solid #dedee1}
.session-speakers[data-count="1"]{grid-template-columns:1fr}
.session-speaker{display:flex;align-items:flex-start;gap:18px;min-width:0}
.session-speaker img{display:block;width:96px;height:120px;object-fit:cover;object-position:top;flex-shrink:0;background:#efeff1}
.session-speaker>div{min-width:0;overflow-wrap:anywhere}
.program .session-speaker p{font-size:.875rem;line-height:1.7;margin:0 0 3px}
.session-speaker h4{font-size:1.12rem;margin:12px 0 0;line-height:1.6}
.session-speakers[data-count="1"] .session-speaker img{width:120px;height:150px}
.venue.section{padding-top:0}
.venue-card{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);background:#f4f4f5;border-radius:6px;overflow:hidden}
.venue-details{padding:44px;align-self:center}.venue-details h3{font-size:clamp(1.4rem,2.6vw,2rem);line-height:1.6;margin:0 0 22px;padding-bottom:18px;border-bottom:3px solid var(--accent)}
.venue-details p{margin:0;font-size:1rem}.venue-details .button{margin-top:26px;font-size:.94rem;padding-inline:20px}
.venue-card iframe{border:0;width:100%;height:100%;min-height:360px;display:block}
.partners.section{padding-top:0;display:grid;gap:56px;text-align:center}
.partners h2{font-size:2rem;margin:0 0 25px}
#organizer-logos,#supporter-logos,#sponsor-logos{display:grid;justify-items:center;gap:24px}
#organizer-logos img,#supporter-logos img{max-width:100%;width:540px;height:auto;object-fit:contain}
#sponsor-logos img{display:block;width:720px;max-width:100%;height:auto;object-fit:contain}
@media(max-width:1000px){.program .program-item{grid-template-columns:110px minmax(0,1fr)}.program .program-meta{padding:26px 16px}.program .program-body{padding:26px}.session-speaker{display:block}.session-speaker img{margin-bottom:14px;width:110px;height:138px}.session-speakers[data-count="1"] .session-speaker{display:flex}.venue-details{padding:28px}}
@media(max-width:600px){.program .program-item{grid-template-columns:minmax(0,1fr);padding:0}.program .program-meta{padding:20px 22px;border-right:0;border-bottom:1px solid #dedee1;flex-direction:row}.program .program-body{padding:22px}.session-speakers{grid-template-columns:minmax(0,1fr);gap:24px}.session-speaker,.session-speakers[data-count="1"] .session-speaker{display:flex;gap:16px}.session-speaker img,.session-speakers[data-count="1"] .session-speaker img{width:86px;height:108px;margin:0}.session-speaker h4{font-size:1.05rem}.venue-card{grid-template-columns:minmax(0,1fr)}.venue-card iframe{min-height:300px}.venue-details{padding:25px}.partners.section{gap:36px}}
:root{--ink:#171719;--ink-2:#303034;--paper:#fff;--muted:#606066;--line:#dedee1;--accent:#d90826;--accent-2:#b70821}
.site-header{position:sticky;color:var(--ink);background:#fff;border-bottom:1px solid var(--line)}
.site-header.is-scrolled{background:rgba(255,255,255,.96);box-shadow:0 4px 24px #00000009}
.brand{font-family:"Noto Sans JP",sans-serif;letter-spacing:0;font-size:1.4rem;font-weight:800}
.button-small{color:white}.button{border-radius:3px}.button:focus-visible,a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #175ca6;outline-offset:5px}
.hero{height:auto;min-height:0;max-height:none;background:#fff;color:var(--ink);overflow:visible}
.hero-visual{position:relative;width:min(1400px,100%);margin:auto;isolation:isolate}
.bim-collage{display:block;width:100%;height:auto}
.hero-title-block{position:absolute;left:57%;right:3%;top:12%;animation:title-enter .85s ease-out both}
.hero-title-block .eyebrow{color:var(--muted);font-size:clamp(.7rem,1vw,.9rem);letter-spacing:.13em;margin:0 0 24px}
.hero h1{font-size:clamp(1.8rem,4.1vw,3.6rem);line-height:1.5;letter-spacing:-.045em;font-weight:800;max-width:none}
.hero h1>span{display:block;text-wrap:balance}
.hero h1>strong{display:block;color:var(--accent);font-family:"Roboto Mono",monospace;font-size:clamp(4rem,10vw,9rem);line-height:1.2;letter-spacing:-.09em;margin-top:8px}
.hero-content{height:auto;display:grid;grid-template-columns:1fr 1fr;gap:22px 64px;padding:42px 0 48px;border-top:2px solid var(--ink)}
.hero-content>.eyebrow{display:none}.hero-lead{margin:0;color:#49494e;font-size:1rem;grid-row:1/3;align-self:center;max-width:580px}
.event-facts{margin:0;gap:22px}.event-facts>div{padding:0 0 0 20px;min-width:0;border-color:var(--line);grid-template-columns:1fr;gap:3px}.event-facts>div:first-child{padding:0}.fact-label{writing-mode:initial;grid-row:auto;font-size:.75rem}.event-facts strong{font-size:1.05rem}.event-facts div>span:last-child{color:var(--muted);font-size:.88rem}
.hero-actions{gap:22px}.hero-actions .button{padding-inline:22px;font-size:.94rem}.hero-actions .text-link{border-color:var(--ink);white-space:nowrap}.hero-index{display:none}
.section{padding-block:92px}.intro{border-top:1px solid var(--line)}.intro-copy p{color:#49494e}.section-heading h2{font-size:clamp(2rem,3.4vw,3.5rem)}
.benefit-grid{gap:20px}.benefit-card{border:1px solid var(--line);border-top:3px solid var(--accent);background:#fafafa;min-height:250px}.benefit-card:first-child{border-left:1px solid var(--line)}.benefit-card h3{margin-top:34px}
.program{background:#f4f4f5;color:var(--ink)}.program .section-heading>p{color:var(--muted)}.program-list,.program-item,.program-meta{border-color:#d4d4d8}.program-meta small{font-size:.8rem}.program-body p{color:#57575e}.program-index{color:#d6d6da}.program-speaker{color:var(--ink)}
.speaker-card{border:1px solid var(--line)}.speaker-photo{background:#eeeef0;color:#74747c}.speaker-info p{font-size:.875rem}.speaker-info h3{font-size:1.06rem}.speaker-photo small{font-size:.75rem}
.quote-band{background:var(--ink);padding:23px 0}.marquee span{font-size:clamp(1.8rem,4vw,3.5rem)}
.outline-list dd{color:#57575e}.faq{padding-top:0}.application{background:#f5f5f6;color:var(--ink);border-top:5px solid var(--accent)}.application:after{display:none}.application .kicker{color:var(--accent)}.application h2{font-size:clamp(2.1rem,4vw,4rem)}.button-light{background:var(--accent);color:white}.site-footer{background:#fff;color:var(--muted);border-top:1px solid var(--line)}.footer-inner{font-size:.8rem}.mobile-cta{background:var(--accent)}
@keyframes title-enter{from{opacity:0;transform:translateY(15px)}to{opacity:1;transform:none}}
@media(max-width:1000px){.hero-content{grid-template-columns:1fr;gap:24px}.hero-lead{grid-row:auto;max-width:none}.hero-title-block{top:10%}.hero-title-block .eyebrow{margin-bottom:10px}.hero-actions{flex-direction:row}.benefit-grid{gap:12px}.benefit-card{padding:24px}.brand{font-size:1.2rem}}
@media(max-width:900px){.menu-button span{background:var(--ink)}.mobile-nav{background:#fff;color:var(--ink);border-bottom:1px solid var(--line)}.mobile-nav a{border-color:var(--line)}}
@media(max-width:600px){.hero-visual{padding-bottom:0}.bim-collage{width:100%}.hero-title-block{position:relative;left:auto;right:auto;top:auto;margin:-22px 16px 0;padding:22px 16px 28px;background:#fff;border-bottom:4px solid var(--accent)}.hero-title-block .eyebrow{font-size:.75rem;margin-bottom:12px}.hero h1{font-size:clamp(1.7rem,7vw,2.6rem);line-height:1.35}.hero h1>span{text-wrap:initial}.hero h1>strong{font-size:clamp(4rem,21vw,6rem);margin-top:6px;line-height:1.1}.hero-content{border-top:0;padding-top:26px;gap:22px}.hero-actions{flex-direction:column;gap:16px}.hero-lead{font-size:1rem}.event-facts{grid-template-columns:1fr 1fr;gap:14px}.event-facts>div{padding-left:12px!important}.fact-label{display:block}.event-facts strong{font-size:.93rem}.event-facts div>span:last-child{font-size:.875rem}.section{padding-block:65px}.benefit-grid{gap:14px}.speaker-grid{grid-template-columns:1fr}.speaker-card{display:grid;grid-template-columns:110px 1fr;align-items:center}.speaker-photo{aspect-ratio:4/5}.speaker-photo span{font-size:3rem}.speaker-info p{font-size:.875rem}.speaker-info h3{font-size:1.05rem}.faq{padding-top:0}.outline-list dd{font-size:1rem}.brand{font-size:.84rem}.footer-inner{padding-bottom:95px}}
@media(prefers-reduced-motion:reduce){.hero-title-block{animation:none}}

.outline-list dd{white-space:pre-line}
.site-footer .footer-inner{display:flex;justify-content:center;text-align:center}

/* 大きな講師写真と長い所属・役職の表示。高さは文字量に合わせて伸長。 */
.session-speakers{gap:32px;align-items:start}
.session-speaker,.session-speakers[data-count="1"] .session-speaker{display:grid;grid-template-columns:minmax(0,1fr);gap:18px;align-items:start}
.session-speaker img,.session-speakers[data-count="1"] .session-speaker img{width:180px;max-width:100%;height:auto;aspect-ratio:4/5;object-fit:cover;margin:0}
.session-speakers[data-count="1"] .session-speaker{grid-template-columns:180px minmax(0,1fr);gap:28px}
.program .session-speaker p{font-size:1rem;line-height:1.85;white-space:pre-wrap;overflow-wrap:anywhere;word-break:normal;max-width:none}
.session-speaker h4{font-size:1.2rem;margin-top:14px;overflow-wrap:anywhere}
.program .program-meta small{font-family:"Noto Sans JP",sans-serif;letter-spacing:.02em;font-size:.875rem}
#sponsor-logos{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:24px}
.sponsor-logo{flex:none;width:100%;max-width:640px;min-width:0;min-height:120px;display:flex;align-items:center;justify-content:center;padding:18px 0}
#sponsor-logos .sponsor-logo>img{width:100%;height:auto;object-fit:contain}
.logo-window{width:100%;position:relative;overflow:hidden}
#sponsor-logos .logo-window img{position:absolute;top:0;left:0;width:100%;max-width:none;height:auto;display:block}
@media(max-width:600px){.session-speakers{gap:32px}.session-speaker,.session-speakers[data-count="1"] .session-speaker{grid-template-columns:minmax(0,1fr);gap:18px}.session-speaker img,.session-speakers[data-count="1"] .session-speaker img{width:160px;height:auto;aspect-ratio:4/5}.sponsor-logo{flex-basis:100%;max-width:480px;min-height:80px}#sponsor-logos{gap:12px}}

/* 開催情報は上揃えにし、関連する日付・時間をひとまとまりに表示。 */
.event-facts{align-items:flex-start}
.event-facts>.fact-column{display:flex;flex-direction:column;gap:12px;align-self:stretch}
.event-facts .fact-content{display:flex;flex-direction:column;gap:18px}
.event-facts .recording-date,.event-facts .format-detail{display:flex;flex-direction:column;gap:4px}
.event-facts .fact-content strong{line-height:1.65}
.event-facts .fact-note{font-size:.88rem;line-height:1.65;color:var(--muted)}
@media(max-width:600px){
  .event-facts{display:grid;grid-template-columns:1fr;gap:22px}
  .event-facts>.fact-column{padding:0!important;border-left:0}
  .event-facts>.fact-column+ .fact-column{padding-top:20px!important;border-top:1px solid var(--line)}
}

/* ヘッダータイトルは年まで横一列。年はメインタイトルと同じ赤。 */
.site-header .brand{flex-shrink:0;flex-wrap:nowrap;white-space:nowrap;gap:0;line-height:1.4}
.site-header .brand-year{color:var(--accent)}
@media(max-width:600px){.site-header .brand{font-size:clamp(.72rem,3.3vw,.9rem)}.header-inner{gap:12px}}

.hero-actions{flex-wrap:wrap}.button-streaming{border:1px solid var(--accent);color:var(--accent);background:#fff}

/* 申込・動画視聴ボタンは画面幅に応じて折り返し、右端に揃える。 */
.hero .hero-actions{justify-content:flex-end}
@media(max-width:600px){.hero .hero-actions{align-items:flex-end}.hero .hero-actions .button{max-width:100%}}

/* 時間を公開収録の日付の左端に合わせる。 */
.event-facts .recording-date{display:grid;grid-template-columns:max-content minmax(0,1fr);column-gap:0;row-gap:4px}
.event-facts .recording-date .fact-note{grid-column:2}