/* Reused from the current Jinbe introduction; game is isolated in its trial iframe. */
:root{--layout-vw:1vw}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Zen Maru Gothic",sans-serif;background:#fff8ec}a:focus-visible{outline:3px solid #d9771a;outline-offset:5px}.rough-bar{padding:9px 20px;background:#092e50;color:#fff;text-align:center;font-size:12px;line-height:1.6}.rough-bar a{color:inherit;margin-left:14px;text-underline-offset:3px}.game-preview{height:min(100svh,900px);background:#263c25}.game-preview iframe{display:block;width:100%;height:100%;border:0}.trial-link{text-align:center;padding:12px 20px;font-size:13px;background:#f8ecd8}.trial-link a{color:#6b3c1a}.rough-note{color:#8a6a4a;font-size:12px!important;line-height:1.6!important;margin:18px auto 0;max-width:650px}
.koba-intro *{box-sizing:border-box}.koba-intro{color:#3d2412;background:#fff8ec;margin:0;font-family:Zen Maru Gothic,Hiragino Maru Gothic ProN,sans-serif;line-height:1.9}.koba-intro header{background:#073257;justify-content:space-between;align-items:center;padding:16px 6%;display:flex}.koba-intro header img{width:170px}.koba-intro a{color:inherit}.koba-intro header a,.koba-intro .challenge>a{color:#fff;background:#d9771a;border-radius:30px;padding:12px 30px;font-weight:700;text-decoration:none;display:inline-block}.koba-intro main{overflow:hidden}.koba-intro section{text-align:center;padding:76px max(6%,50vw - 550px)}.koba-intro .opening{background:linear-gradient(#f8ecd8,#fff8ec)}.koba-intro .opening>img{border-radius:30px;width:100%;margin-top:30px}.koba-intro .kicker{letter-spacing:.08em;color:#c56a14;font-size:14px;font-weight:800}.koba-intro h1{font-size:clamp(30px,4vw,48px)}.koba-intro h2{font-size:clamp(26px,3vw,36px);line-height:1.5}.koba-intro h3{font-size:21px;line-height:1.6}.koba-intro .cards,.koba-intro .steps{text-align:left;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px;display:grid}.koba-intro .cards article{background:#fff;border:1px solid #efd9b8;border-radius:24px;padding:30px;box-shadow:0 8px #f0dfc2}.koba-intro .cards span{color:#c56a14;font-size:13px;font-weight:800}.koba-intro .cards p,.koba-intro .steps p{font-size:15px}.koba-intro .journey{color:#fff;background:#103c65}.koba-intro .journey .kicker{color:#97dff1}.koba-intro .steps article{border-top:2px solid #4d9ec2;padding-top:20px}.koba-intro .steps b{color:#ffe89a;font-size:26px}.koba-intro .challenge{background:#f3e2c6}.koba-intro .challenge small{margin-top:16px;font-size:12px;display:block}.koba-intro footer{text-align:center;color:#fff3df;background:#092e50;padding:40px}.koba-intro footer img{width:210px}.koba-intro footer nav{justify-content:center;gap:24px;margin:20px;display:flex}.koba-intro footer small{display:block}@media (width<=650px){.koba-intro header{padding:10px 20px}.koba-intro header img{width:115px}.koba-intro header a{padding:8px 16px;font-size:12px}.koba-intro section{padding:48px 22px}.koba-intro .cards,.koba-intro .steps{grid-template-columns:1fr;gap:20px}.koba-intro .cards article{padding:25px}.koba-intro .opening>img{border-radius:18px}.koba-intro .opening p{font-size:15px}.koba-intro .challenge br{display:none}}.koba-intro .route-art{border-radius:24px;width:100%;margin:30px auto 0;display:block}.koba-intro footer img{filter:brightness(0)invert()}@media (width<=650px){.koba-intro .how h2{font-size:22px}.koba-intro .opening h1{font-size:28px}}.koba-intro .cards article{padding:0;overflow:hidden}.koba-intro .card-art{aspect-ratio:16/9;object-fit:cover;width:100%;display:block}.koba-intro .card-copy{padding:24px}.koba-intro .challenge-art{aspect-ratio:16/9;object-fit:cover;border-radius:24px;width:100%;max-width:900px;margin:28px auto;display:block}.koba-intro .challenge p{margin-block:26px}@media (width<=650px){.koba-intro .cards article{padding:0}.koba-intro .card-copy{padding:24px}.koba-intro .challenge-art{border-radius:18px}}.koba-intro .about-heading{align-items:center;min-height:300px;margin-bottom:0;display:grid;position:relative}.koba-intro .about-copy{z-index:1;width:calc(100% - 490px);margin-inline:auto;position:relative}.koba-intro .about-heading h1{white-space:nowrap;font-size:clamp(32px,3.5vw,46px);line-height:1.4}.koba-intro .about-heading p{font-size:18px}.koba-intro .about-art{pointer-events:none;position:absolute;inset:0}.koba-intro .about-art img{object-fit:contain;width:270px;height:300px;display:block;position:absolute;top:50%;transform:translateY(-50%)}.koba-intro .about-art .intro-treasure{left:-12px}.koba-intro .about-art .intro-jinbe{right:-12px}@media (width<=1100px){.koba-intro .about-heading{flex-direction:column;gap:18px;min-height:0;display:flex}.koba-intro .about-copy{width:100%}.koba-intro .about-heading h1{white-space:normal;font-size:clamp(28px,4.5vw,42px)}.koba-intro .about-heading p{font-size:16px}.koba-intro .about-art{justify-content:center;align-items:center;width:100%;height:240px;display:flex;position:relative;inset:auto}.koba-intro .about-art img{width:53%;height:240px;position:relative;top:auto;transform:none;left:auto!important;right:auto!important}.koba-intro .about-art .intro-jinbe{margin-left:-6%}}@media (width<=480px){.koba-intro .about-heading{gap:14px}.koba-intro .about-art,.koba-intro .about-art img{height:205px}}body{display:block}.koba-intro{color:#3d2412;background:#fff8ec;font-family:Zen Maru Gothic,sans-serif;line-height:1.8}.koba-intro .opening h1{margin:0}.koba-intro footer{width:100%}body.playing .koba-intro{display:none}@media (width<=650px){.koba-intro .about-art .intro-treasure{z-index:1;flex:0 0 45%;width:45%}.koba-intro .about-art .intro-jinbe{z-index:2;flex:0 0 65%;width:65%;margin-left:-10%}}@media (width>=1101px){.koba-intro .opening{padding:50px 0 54px}.koba-intro .about-heading{width:100%;min-height:350px}.koba-intro .about-copy{width:42%;max-width:760px}.koba-intro .about-heading h1{font-size:clamp(32px,3vw,46px)}.koba-intro .about-heading p{font-size:clamp(14px,1.25vw,18px)}.koba-intro .about-art img{width:29vw;max-width:570px;height:380px}.koba-intro .about-art .intro-treasure{left:3vw}.koba-intro .about-art .intro-jinbe{z-index:2;width:36vw;max-width:700px;right:-5vw}.koba-intro .about-art .intro-treasure{left:0;transform:translateY(-50%)scaleX(-1)}.koba-intro .opening{padding-bottom:28px}.koba-intro .how{padding-top:44px}}

/* Site integration only. The approved game, art and wide-screen intro remain intact. */
.koba-intro .challenge { margin-bottom: 0; padding-bottom: 100px; }
.koba-intro footer img { height: auto; max-width: 100%; }
.koba-intro footer nav { flex-wrap: wrap; }
@media (min-width: 1240px) {
  .koba-intro .cards article { display: block; }
  .koba-intro .guide-copy h3 { white-space: normal; text-wrap: balance; }
}
@media (min-width: 901px) and (max-width: 1239px) {
  .koba-intro .cards { grid-template-columns: minmax(0, 1fr); }
  .koba-intro .cards article { display: grid; grid-template-columns: 1fr 1fr; align-items: center; }
  .koba-intro .card-art { height: 100%; min-height: 230px; }
}
@media (max-width: 900px) {
  .koba-intro section { padding: 48px 20px; }
  .koba-intro .cards { grid-template-columns: minmax(0, 1fr); max-width: 540px; margin-inline: auto; gap: 22px; }
  .koba-intro .cards article { display: grid; grid-template-columns: minmax(0, 1fr); }
  .koba-intro .opening p { font-size: 15px; }
  .koba-intro .challenge { padding-bottom: 64px; }
  .koba-intro .challenge br { display: none; }
  .koba-intro footer { padding: 30px 20px calc(30px + env(safe-area-inset-bottom)); }
  .koba-intro footer nav { gap: 16px 24px; margin-inline: 0; font-size: 15px; }
}

/* Local integration of the requested art positions; no source asset transformations. */
.koba-intro .opening{padding:58px 20px 30px}.koba-intro .about-heading{display:grid;grid-template-columns:minmax(0,1fr) minmax(330px,1.2fr) minmax(0,1.15fr);align-items:center;gap:18px;max-width:1500px;margin:auto;min-height:350px}.koba-intro .about-copy{grid-column:2;grid-row:1;max-width:none;width:100%;margin:0}.koba-intro .about-heading h1{font-size:clamp(29px,2.6vw,42px);white-space:normal;margin:8px 0 16px;line-height:1.45}.koba-intro .about-heading h1 span{display:block}.koba-intro .about-heading p{font-size:16px}.koba-intro .about-art{display:contents;position:static}.koba-intro .about-art img{position:static;inset:auto;transform:none!important;width:100%;height:auto;max-width:none;object-fit:contain;margin:0}.koba-intro .about-art .intro-treasure{grid-column:1;grid-row:1;width:100%;border-radius:20px}.koba-intro .about-art .intro-jinbe{grid-column:3;grid-row:1;width:100%;max-height:410px;margin:0}.koba-intro .cards{grid-template-columns:1fr;gap:26px;max-width:1100px;margin:40px auto 0}.koba-intro .cards article{display:grid;grid-template-columns:1fr 1fr;align-items:center}.koba-intro .guide-image{display:block;width:100%;aspect-ratio:4/3;background:#f3e2c6;overflow:hidden}.koba-intro .guide-image img{display:block;width:100%;height:100%;object-fit:contain}.koba-intro .guide-card:nth-child(even) .guide-image{order:2}.koba-intro .guide-copy{padding:30px 34px}.koba-intro .guide-copy h3{font-size:clamp(22px,2.2vw,30px);text-wrap:balance;white-space:normal}.koba-intro .guide-copy p{font-size:17px}.koba-intro .characters{background:#f8ecd8}.koba-intro .bird-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;text-align:center;margin:36px auto 0;max-width:1100px}.koba-intro .bird-card{padding:22px 20px 26px;background:#fff;border:1px solid #efd9b8;border-radius:24px}.koba-intro .bird-card img{display:block;width:130px;height:130px;object-fit:contain;margin:0 auto}.koba-intro .bird-card h3{margin:10px 0 4px;font-size:23px}.koba-intro .bird-card p{font-size:15px;margin:8px 0}.koba-intro .bird-role{color:#c56a14;font-size:13px;font-weight:700}.koba-intro .stage-intro{width:auto}.koba-intro .stage-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;margin:36px auto 0;max-width:1100px;text-align:left}.koba-intro .stage-card{background:#fff;border:1px solid #efd9b8;border-radius:24px;overflow:hidden}.koba-intro .stage-card img{display:block;width:100%;height:auto;aspect-ratio:8/5;object-fit:contain}.koba-intro .stage-copy{padding:24px 28px}.koba-intro .stage-copy h3{margin:7px 0 10px;font-size:24px}.koba-intro .stage-copy p{font-size:16px;margin:0}.koba-intro .course-label{color:#c56a14;font-size:14px;font-weight:700}.koba-intro .challenge{margin-bottom:0;padding-bottom:100px}.koba-intro .challenge h2{margin:0 0 18px}.koba-intro .challenge>a{font-size:18px;min-height:48px}.koba-intro .site-footer{display:block;width:100%;margin:0;border:0}.koba-intro footer nav{margin:22px 0}.koba-intro footer .copyright{display:block;margin:0}.koba-intro footer small{font-size:13px}
@media(max-width:1100px){.koba-intro .about-heading{display:flex;flex-direction:column;gap:14px;min-height:0}.koba-intro .about-copy{width:100%;max-width:680px}.koba-intro .about-heading h1{font-size:clamp(28px,4vw,40px)}.koba-intro .about-heading h1 span{display:inline}.koba-intro .about-art{display:flex;position:static;width:min(720px,100%);height:auto;align-items:center;gap:12px;justify-content:center}.koba-intro .about-art .intro-treasure{flex:0 1 42%;width:42%;height:auto}.koba-intro .about-art .intro-jinbe{flex:0 1 54%;width:54%;height:auto;margin:0}.koba-intro .bird-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:900px){.game-preview{height:100svh}.koba-intro .opening{padding:44px 20px 26px}.koba-intro section{padding:48px 20px}.koba-intro .cards{max-width:540px}.koba-intro .cards article{grid-template-columns:minmax(0,1fr)}.koba-intro .guide-card:nth-child(even) .guide-image{order:0}.koba-intro .about-heading h1 span{display:block}.koba-intro .about-heading p{font-size:16px}.koba-intro .about-art .intro-treasure{flex-basis:42%;width:42%}.koba-intro .about-art .intro-jinbe{flex-basis:54%;width:54%;margin:0}.koba-intro .stage-intro{width:100%}.koba-intro .stage-grid{grid-template-columns:1fr;max-width:540px}.koba-intro .stage-copy{padding:24px}.koba-intro .stage-copy h3{font-size:23px}.koba-intro .challenge{padding-bottom:64px}.koba-intro .site-footer{width:100%;padding:30px 20px calc(30px + env(safe-area-inset-bottom))}.koba-intro .site-footer .copyright{margin-top:26px}}
@media(max-width:480px){.koba-intro .bird-grid{grid-template-columns:1fr;max-width:340px}.koba-intro .bird-card{padding:22px 24px}.koba-intro .bird-card img{width:145px;height:145px}.koba-intro .about-heading h1{font-size:28px}.koba-intro .about-art{gap:8px}.koba-intro .about-art .intro-treasure{border-radius:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Keep full-bleed sections when the shared narrow-column utility loads last. */
.koba-intro section.stage-intro,.koba-intro footer.site-footer{width:100%;}

.koba-intro h2{text-wrap:balance}.koba-intro .copy-phrase{white-space:nowrap;display:inline-block}

/* Tom feedback 2026-10-06 23:39: enlarge rivals on SP, preserve the lead character size. */
@media(max-width:900px){
 .koba-intro .about-art{width:min(720px,calc(100% + 20px));gap:0}
 .koba-intro .about-art .intro-treasure{flex:0 0 48%;width:48%}
 .koba-intro .about-art .intro-jinbe{flex:0 0 52%;width:52%}
}

/* Tom feedback 2026-10-06: slightly larger rivals on desktop too. */
@media(min-width:1101px){.koba-intro .about-heading{grid-template-columns:minmax(0,1.15fr) minmax(330px,1.2fr) minmax(0,1.15fr)}}

.koba-intro .challenge{background:linear-gradient(rgba(255,248,236,.58),rgba(255,248,236,.58)),url("./assets/farm-cta-background-v1.png") center/cover no-repeat}.koba-intro .challenge h2,.koba-intro .challenge p{text-shadow:0 1px 5px #fff8ec}

.koba-intro .challenge{display:flex;flex-direction:column;align-items:center;justify-content:center;padding-block:88px}.koba-intro .challenge h2{margin:0 0 18px}.koba-intro .challenge p{margin:0 0 26px}@media(max-width:900px){.koba-intro .challenge{padding-block:56px}}

.koba-intro .challenge p{font-weight:600}

.koba-intro .special-thanks{padding-block:40px;background:#fff8ec}.koba-intro .special-thanks p{margin:0 0 8px}.koba-intro .special-thanks a{font-weight:700;text-underline-offset:4px}