@import url("./style-common.css");

/* Research notes styles for GENAI-RON */
:root{
  --paper:#faf7f0;
  --ink:#242424;
  --muted:#66625a;
  --subtle:#8a857c;
  --line:rgba(151,139,119,.36);
  --accent:#245c63;
  --academic:#7b4fa3;
  --technology:#3267a8;
  --compute:#4f8a5b;
  --company:#b8742a;
  --society:#b85a52;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body.note-page{margin:0;color:var(--ink);background:var(--paper);font-family:"Hiragino Mincho ProN","Yu Mincho",YuMincho,"Noto Serif JP",serif;line-height:1.95;letter-spacing:.015em}
a{color:inherit;text-decoration-color:rgba(36,92,99,.45);text-underline-offset:.22em}a:hover{text-decoration-color:currentColor}
.note-hero{width:min(1120px,calc(100% - 32px));margin:0 auto;padding:58px 0 42px;border-bottom:1px solid var(--line)}
.note-kicker{margin:0 0 14px;color:var(--subtle);font-size:12px;letter-spacing:.18em;text-transform:uppercase}
.note-hero h1{margin:0;font-size:clamp(42px,7vw,82px);line-height:1.05;letter-spacing:-.045em;font-weight:650}
.note-lead{margin:24px 0 0;max-width:820px;font-size:clamp(18px,2.1vw,24px);line-height:1.78}.note-sublead{margin:18px 0 0;max-width:820px;color:var(--muted);font-size:17px;line-height:1.78}.note-meta{margin-top:24px;color:var(--subtle);font-size:13px;letter-spacing:.04em}
.note-layout{width:min(1120px,calc(100% - 32px));margin:38px auto 88px;display:grid;grid-template-columns:220px minmax(0,1fr);gap:42px}.note-sidebar{position:sticky;top:88px;align-self:start;padding:0;border:0;background:transparent;border-radius:0}.note-sidebar-title{margin:0 0 12px;color:var(--subtle);font-size:12px;letter-spacing:.18em;text-transform:uppercase}.note-sidebar a{display:block;padding:9px 0;color:var(--muted);font-size:14px;text-decoration:none;border-top:1px solid var(--line)}.note-sidebar a:first-of-type{border-top:0}.note-sidebar a:hover{color:var(--accent)}
.note-content{min-width:0}.note-section{margin:0 0 56px;padding-top:0;border-top:1px solid var(--line)}.note-section:first-child{border-top:0}.note-section h2{margin:0 0 20px;font-size:clamp(24px,3.4vw,36px);line-height:1.35;letter-spacing:-.01em;font-weight:600}.note-section h3{margin:32px 0 12px;font-size:20px;line-height:1.5}.note-section p{margin:0 0 18px}.note-intro{padding:0;border:0;border-radius:0;background:transparent}
.turning-grid,.layer-grid,.note-card-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0}.note-card-grid-single{grid-template-columns:1fr}.turning-card,.layer-card{padding:20px 0;border:0;border-top:1px solid var(--line);border-radius:0;background:transparent}.turning-number{display:block;margin:0 0 10px;color:var(--subtle);font-family:Georgia,"Times New Roman",serif;font-size:14px;letter-spacing:.12em}.turning-card h3,.layer-card h3{margin:0 0 8px;font-size:20px;line-height:1.45}.turning-card p,.layer-card p{margin:0;color:var(--muted);font-size:15px;line-height:1.75}.layer-card{border-left:0;border-top:1px solid var(--line)}
.period{margin:0 0 40px;padding:0;border:0;border-top:1px solid var(--line);border-radius:0;background:transparent}.period-header{margin-bottom:22px;border-bottom:1px solid var(--line);padding:24px 0 18px}.period-label{margin:0 0 8px;color:var(--subtle);font-size:13px;letter-spacing:.14em;text-transform:uppercase}.period h2{margin:0 0 12px;font-size:clamp(24px,3.6vw,34px)}.period-summary{max-width:760px;color:var(--muted)}
.timeline-list{display:grid;gap:0}.timeline-card{display:grid;grid-template-columns:118px minmax(0,1fr);gap:18px;padding:18px 0;border:0;border-top:1px solid var(--line);border-left:0;border-radius:0;background:transparent}.timeline-date{color:var(--subtle);font-family:Georgia,"Times New Roman",serif;font-size:16px;line-height:1.4}.timeline-body h3{margin:0 0 8px;font-size:18px}.timeline-body p{margin:0;color:var(--muted);font-size:15px}.badge{display:inline-flex;align-items:center;gap:6px;margin:0 0 8px;padding:0;color:var(--subtle);background:transparent!important;font-size:12px;line-height:1.5;letter-spacing:.08em;text-transform:uppercase}.source-list{padding-left:1.4em}.source-list li{margin:0 0 8px}
.note-footer{padding:36px 0;border-top:1px solid var(--line);color:var(--subtle);font-size:12px;text-align:center;letter-spacing:.12em;text-transform:uppercase}.note-footer p{font-size:0;margin:0}.note-footer p::before{content:"GENAI-RON｜Research Archive of Generative AI";font-size:12px}
@media(max-width:920px){.note-layout{display:block}.note-sidebar{position:static;margin-bottom:34px}.turning-grid,.layer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){body.note-page{font-size:18px;line-height:1.9}.note-hero{padding:44px 0 32px}.note-kicker{font-size:16px}.note-hero h1{font-size:clamp(42px,13vw,64px)}.note-lead{font-size:22px;line-height:1.72}.note-sublead{font-size:19px;line-height:1.72}.note-layout{margin-top:28px}.note-sidebar a{font-size:18px}.turning-grid,.layer-grid{grid-template-columns:1fr}.note-intro,.period{padding:0;border-radius:0}.timeline-card{grid-template-columns:1fr;gap:8px}.timeline-date{font-size:18px}.turning-card h3,.layer-card h3,.timeline-body h3{font-size:24px}.turning-card p,.layer-card p,.timeline-body p,.note-section p,.note-section li{font-size:18px;line-height:1.78}.note-section h2{font-size:30px}.badge{font-size:15px}}