:root{--paper:#fff;--ink:#000;--blue:#0F3675;--line:#ddd;--serif:'Yu Mincho','Hiragino Mincho ProN','Noto Serif JP',serif;--sans:'Hiragino Kaku Gothic ProN','Yu Gothic',sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--ink);font-family:var(--serif);-webkit-font-smoothing:antialiased}a{color:inherit}a:focus-visible{outline:2px solid #C30D23;outline-offset:6px}.skip{position:absolute;top:-100px;left:20px;background:#fff;padding:10px;z-index:5}.skip:focus{top:10px}.hero{position:relative;width:100%;aspect-ratio:1840/990;overflow:hidden;background:#e1eff8}.hero-image{display:block;width:100%;height:100%;object-fit:cover;object-position:50% 15%}.hero:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(238,249,255,.94) 0%,rgba(235,248,255,.85) 24%,rgba(230,246,255,.48) 45%,transparent 68%);pointer-events:none}.hero-content{position:absolute;z-index:1;left:9%;top:32%}h1{margin:0;font-weight:500;font-size:clamp(34px,5vw,80px);line-height:1.5;letter-spacing:.11em;color:#0F3675}h1 span{display:block;font-size:.51em;letter-spacing:.2em;margin-top:15px}.hero-content:after{content:'';display:block;width:42px;height:2px;background:#C30D23;margin-top:32px}.hero-ribbons{position:absolute;bottom:-1px;left:0;width:100%;height:18%;z-index:2;pointer-events:none}.letter{max-width:830px;margin:auto;padding:75px 35px 90px}.letter h2{font-size:26px;line-height:2;font-weight:500;letter-spacing:.08em;margin:0 0 34px;color:#0F3675}.letter-body p{font-size:17px;line-height:2.5;letter-spacing:.045em;margin:0 0 26px}.registration{text-align:center;padding:0 24px;margin:55px auto 85px}.letter .registration{padding:0;margin:48px 0 0}.button{display:inline-flex;align-items:center;justify-content:center;min-height:62px;max-width:100%;min-width:330px;padding:19px 40px;background:#0F3675;border:1px solid #0F3675;color:#fff;font-family:var(--sans);font-size:16px;letter-spacing:.08em;text-decoration:none;box-shadow:0 5px 16px #0f367515;transition:background .2s,box-shadow .2s}.button:hover{background:#0F3675;box-shadow:0 6px 20px #0f367526}.profile{position:relative;display:grid;grid-template-columns:36% 1fr;gap:7%;align-items:start;padding:85px max(7%,calc((100vw - 1080px)/2));background:linear-gradient(125deg,#e6f3fc,#f5fbff 70%,#fff)}.profile-photo{height:540px;overflow:hidden;box-shadow:16px 16px 0 #fff}.profile-photo img{width:100%;height:100%;object-fit:cover;object-position:50% 57%}.profile h2{font-size:32px;letter-spacing:.12em;font-weight:500;margin:0 0 30px;color:#0F3675}.profile h2:before{content:'';display:block;width:30px;height:2px;background:#C30D23;margin:0 0 22px}.profile p{font-size:16px;line-height:2.2;letter-spacing:.035em;margin:0 0 22px}.books{max-width:960px;margin:auto;padding:75px 35px 15px}.section-label{font-size:26px;font-weight:500;letter-spacing:.15em;text-align:center;margin:0 0 42px;color:#0F3675}.section-label:after{content:'';display:block;width:26px;height:2px;margin:19px auto 0;background:#C30D23}.book-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:55px}figure{margin:0}.book-image{height:275px;display:flex;align-items:center;justify-content:center}.book-image img{width:auto;max-width:100%;height:100%;object-fit:contain;box-shadow:4px 8px 18px #29476115}footer{text-align:center;border-top:1px solid var(--line);padding:28px;color:#666;background:#F7F7F7;font-family:var(--sans);font-size:12px}@media(max-width:800px){.letter{padding:60px 8% 65px}.profile{padding:55px 8%;grid-template-columns:1fr;gap:42px}.profile-photo{max-width:360px;width:100%;height:440px;margin:auto}.profile h2{font-size:29px}.books{padding:60px 7% 15px}.book-grid{gap:25px}.book-image{height:220px}.registration{margin:45px auto 65px}}@media(max-width:520px){.hero{aspect-ratio:4/5}.hero-image{object-position:62% center}.hero:after{background:linear-gradient(90deg,#edf8ffc7, #edf8ff50 48%,transparent 74%)}.hero-content{top:13%;left:7%}h1{font-size:31px;line-height:1.6;letter-spacing:.04em}h1 span{font-size:22px;margin-top:3px;letter-spacing:.08em}.hero-content:after{margin-top:18px;width:25px}.hero-ribbons{height:13%}.letter{padding:44px 7% 55px}.letter h2{font-size:22px;margin-bottom:28px}.letter-body p{font-size:16px;line-height:2.3;letter-spacing:.025em}.button{font-size:15px;padding:18px 24px;width:100%;min-width:0;max-width:330px}.profile{padding:45px 7%}.profile p{font-size:16px}.book-grid{gap:17px}.book-image{height:auto;align-items:flex-start}.book-image img{height:auto;width:100%;max-height:220px}.books{padding:48px 7% 5px}.section-label{font-size:23px;margin-bottom:30px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}}

/* Palette from mushozoku.jp: red #C30D23, blue #0F3675. */
:root{--book-link:#0F3675;--book-surface:#F7F7F7}
.profile{background:#F7F7F7}.hero{background:#eee}.hero:after{background:linear-gradient(90deg,#ffffffed 0%,#ffffffb3 24%,#ffffff45 45%,transparent 68%)}.button{background:#C30D23;border-color:#C30D23;box-shadow:none}.button:hover{background:#BE1D2C;border-color:#BE1D2C}

/* Four books: featured cover, title, and Amazon link. */
.books{padding-top:65px;max-width:1040px}
.books .book-featured{max-width:100%;margin:0 auto 64px;padding:42px 24px;background:var(--book-surface,#f2f2f2);text-align:center;border:1px solid var(--line)}
.books .book-featured .book-image{height:420px;max-width:100%;margin:0 auto}
.books .book-image{display:flex;text-decoration:none}
.books .book-image img{object-fit:contain;max-width:100%;width:auto;height:100%;filter:none}
.books .book-card{min-width:0;text-align:center;display:flex;flex-direction:column}
.books figcaption{flex:1;display:flex;flex-direction:column;align-items:center}
.books .book-title{font-size:17px;font-weight:500;line-height:1.8;letter-spacing:.025em;margin:24px 0 12px}
.books .book-title span{display:block;font-size:15px;margin-top:5px}
.books .book-featured .book-title{font-size:28px;margin-top:28px}
.books .book-featured .book-title span{font-size:18px}
.books .amazon-link{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:44px;padding:8px 4px;margin-top:auto;font-family:var(--sans);font-size:15px;line-height:1.5;text-underline-offset:5px;text-decoration-thickness:1px;color:var(--book-link,var(--ink))}
.books .amazon-link:hover{text-decoration-thickness:2px}
.books .book-featured .amazon-link{padding:13px 30px;margin-top:6px;background:var(--book-link,var(--ink));color:#fff;text-decoration:none;font-size:16px}
.books a:focus-visible{outline:2px solid currentColor;outline-offset:5px}
@media(max-width:700px){.books .book-grid{grid-template-columns:1fr;gap:46px}.books .book-image{height:270px}.books .book-featured{padding:30px 20px;margin-bottom:46px}.books .book-featured .book-image{height:360px}.books .book-title{margin-top:20px;max-width:320px}.books .book-featured .book-title{font-size:26px}.books .book-featured .book-title span{font-size:16px}.books .book-image img{max-height:none}.books{padding-top:42px}}
@media(max-width:360px){.books .book-featured .book-image{height:310px}}

/* Blue-to-red gradient, using the reference site's two brand colors. */
:root{--brand-gradient:linear-gradient(110deg,#0F3675 0%,#C30D23 100%)}
.button,.button:hover{background:var(--brand-gradient);border-color:transparent;box-shadow:0 5px 18px #0f36751a}
.button:hover{box-shadow:0 7px 24px #0f367530}
.hero-content:after,.profile h2:before,.section-label:after{background:var(--brand-gradient);width:64px;height:3px}
.profile{background:linear-gradient(120deg,#eef2f8 0%,#faf9fb 52%,#fcf0f2 100%)}
.books .book-featured{background:linear-gradient(120deg,#f1f4f9 0%,#fff 52%,#fcf1f3 100%);border-color:#e5e5ec}
.books .book-featured .amazon-link{background:var(--brand-gradient)}
footer{background:linear-gradient(110deg,#f1f4f9,#fcf1f3)}

.books .book-release{margin:12px 0 0;font-family:var(--sans);font-size:17px;line-height:1.8;color:var(--ink)}
footer a{text-underline-offset:4px}