/* ===========================================================
   Humble Disruption — shared stylesheet
   Brand: Inter, charcoal #1f2937 ink, off-white #f5f5f4 paper.
   Monochrome — no color. Weight-contrast wordmark.
   =========================================================== */
:root {
  --ink: #1f2937;
  --ink-soft: #4b5563;
  --ink-faint: #9ca3af;
  --paper: #f5f5f4;
  --paper-pure: #ffffff;
  --line: #e2e1de;
  --line-dark: #374151;
  /* monochrome accent: charcoal ink on light surfaces (no color) */
  --red: #1f2937;
  --red-deep: #111827;
  --max: 1180px;
  --measure: 720px;
  --gutter: clamp(1.5rem, 5vw, 5rem);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: 'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  color: var(--ink); background: var(--paper); line-height: 1.6; font-weight: 400; overflow-x: hidden;
}
::selection { background: var(--red); color: #fff; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.wrap { max-width: var(--max); margin: 0 auto; padding-inline: var(--gutter); }

.topbar { position: fixed; top: 0; left: 0; right: 0; height: 4px; background: var(--red); z-index: 200; }
.hl { color: var(--red); }

.word { letter-spacing: 0; white-space: nowrap; }
.word .h { font-weight: 200; }
.word .d { font-weight: 700; }

/* Nav */
header.site {
  position: fixed; top: 4px; left: 0; right: 0; z-index: 100;
  background: rgba(245,245,244,0.82); backdrop-filter: saturate(180%) blur(14px); -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent; transition: border-color .3s ease;
}
header.site.scrolled { border-bottom-color: var(--line); }
nav.site { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); height: 70px; display: flex; align-items: center; justify-content: space-between; }
nav.site .word { font-size: 1.35rem; }
.nav-links { display: flex; gap: 2rem; align-items: center; }
.nav-links a { font-size: .82rem; font-weight: 500; letter-spacing: .02em; color: var(--ink-soft); transition: color .2s ease; position: relative; }
.nav-links a:not(.nav-cta):hover, .nav-links a.active { color: var(--ink); }
.nav-links a:not(.nav-cta)::after { content: ''; position: absolute; left: 0; bottom: -4px; height: 2px; width: 0; background: var(--red); transition: width .25s ease; }
.nav-links a:not(.nav-cta):hover::after, .nav-links a.active::after { width: 100%; }
.nav-cta { background: var(--red); border: 1px solid var(--red); border-radius: 999px; padding: .5rem 1.1rem; color: #fff !important; transition: background .2s ease; }
.nav-cta:hover { background: var(--red-deep); border-color: var(--red-deep); }
@media (max-width: 880px) { .nav-links a:not(.nav-cta) { display: none; } }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: .55rem; font-size: .92rem; font-weight: 600; letter-spacing: .01em; padding: .9rem 1.7rem; border-radius: 999px; cursor: pointer; border: 1px solid var(--red); transition: all .22s ease; }
.btn-primary { background: var(--red); color: #fff; }
.btn-primary:hover { background: var(--red-deep); border-color: var(--red-deep); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }
.btn .arrow { transition: transform .22s ease; }
.btn:hover .arrow { transform: translateX(4px); }
.btn-light { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.btn-light:hover { background: transparent; color: var(--paper); }

/* Hero */
.hero { padding: clamp(9rem, 22vh, 13.5rem) 0 clamp(3.5rem, 8vh, 6rem); }
.eyebrow { font-size: .78rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 1.6rem; display: flex; align-items: center; gap: .8rem; flex-wrap: wrap; }
.hero h1 { font-size: clamp(2.6rem, 7vw, 5.3rem); line-height: 1.02; letter-spacing: -0.03em; font-weight: 300; max-width: 17ch; }
.hero h1 strong { font-weight: 800; }
.hero p.lead { margin-top: 2rem; max-width: 50ch; font-size: clamp(1.05rem, 2.2vw, 1.3rem); color: var(--ink-soft); font-weight: 300; line-height: 1.55; }
.hero-actions { margin-top: 2.6rem; display: flex; gap: 1rem; flex-wrap: wrap; align-items: center; }
.seatnote { font-size: .82rem; color: var(--ink-soft); font-weight: 500; display: inline-flex; align-items: center; gap: .5rem; }
.seatnote .pip { width: 8px; height: 8px; border-radius: 50%; background: var(--red); box-shadow: 0 0 0 0 rgba(31,41,55,.45); animation: pulse 2.4s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(31,41,55,.45);} 70%{ box-shadow: 0 0 0 8px rgba(31,41,55,0);} 100%{ box-shadow:0 0 0 0 rgba(31,41,55,0);} }

/* Page hero (subpages) */
.page-hero { padding: clamp(8rem, 18vh, 11rem) 0 clamp(2.5rem, 5vh, 4rem); }
.page-hero h1 { font-size: clamp(2.2rem, 6vw, 4rem); font-weight: 300; letter-spacing: -0.03em; line-height: 1.04; max-width: 20ch; }
.page-hero h1 strong { font-weight: 800; }
.page-hero p.lead { margin-top: 1.4rem; max-width: 56ch; font-size: clamp(1.05rem, 2.2vw, 1.25rem); color: var(--ink-soft); font-weight: 300; }

/* Breadcrumb */
.crumb { display: flex; gap: .5rem; align-items: center; font-size: .8rem; color: var(--ink-faint); margin-bottom: 1.4rem; flex-wrap: wrap; }
.crumb a { color: var(--ink-soft); }
.crumb a:hover { color: var(--red); }
.crumb .sep { color: var(--ink-faint); }

/* Marquee */
.strip { border-block: 1px solid var(--line); background: var(--paper-pure); overflow: hidden; }
.strip .track { display: flex; gap: 3rem; white-space: nowrap; padding: 1rem 0; width: max-content; animation: slide 34s linear infinite; }
@media (prefers-reduced-motion: reduce) { .strip .track { animation: none; flex-wrap: wrap; width: auto; justify-content: center; } }
.strip span { font-size: .92rem; font-weight: 500; color: var(--ink-soft); letter-spacing: .02em; }
.strip span b { color: var(--red); }
.strip .dot { color: var(--ink-faint); }
@keyframes slide { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* Sections */
section { padding: clamp(4.5rem, 10vh, 8rem) 0; }
.sec-head { max-width: 62ch; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.sec-label { font-size: .76rem; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 1.1rem; display: flex; align-items: center; gap: .8rem; }
.sec-label::before { content: ''; width: 28px; height: 2px; background: var(--red); }
.sec-head h2 { font-size: clamp(1.9rem, 4.4vw, 3rem); font-weight: 300; letter-spacing: -0.025em; line-height: 1.1; }
.sec-head h2 strong { font-weight: 800; }
.sec-head p { margin-top: 1.2rem; color: var(--ink-soft); font-size: 1.08rem; font-weight: 300; max-width: 54ch; }

/* Services */
.services { display: grid; gap: 0; border-top: 1px solid var(--line); }
.service { display: grid; grid-template-columns: minmax(0,0.44fr) minmax(0,1fr) auto; gap: 2rem; align-items: start; padding: clamp(2rem,4vw,3rem) 0; border-bottom: 1px solid var(--line); position: relative; transition: padding-left .3s ease; }
.service::before { content: ''; position: absolute; left: 0; top: -1px; height: calc(100% + 1px); width: 3px; background: var(--red); transform: scaleY(0); transform-origin: top; transition: transform .3s ease; }
.service:hover { padding-left: 1.4rem; }
.service:hover::before { transform: scaleY(1); }
.service .num { font-size: .82rem; font-weight: 700; color: var(--red); letter-spacing: .1em; }
.service h3 { font-size: clamp(1.4rem,3vw,2rem); font-weight: 300; letter-spacing: -0.02em; line-height: 1.12; }
.service h3 strong { font-weight: 800; }
.service .body p { color: var(--ink-soft); font-weight: 300; font-size: 1.02rem; }
.service .tags { margin-top: 1.1rem; display: flex; flex-wrap: wrap; gap: .5rem; }
.tag { font-size: .74rem; font-weight: 500; letter-spacing: .02em; color: var(--ink-soft); border: 1px solid var(--line); border-radius: 999px; padding: .3rem .8rem; }
.service .head-col { display: flex; flex-direction: column; gap: 1rem; }
@media (max-width: 820px) { .service { grid-template-columns: 1fr; gap: 1rem; } .service .plus { display: none; } }
.plus { font-size: 1.5rem; font-weight: 200; color: var(--ink-faint); transition: transform .3s ease, color .3s ease; }
.service:hover .plus { transform: rotate(90deg); color: var(--red); }

/* Products / cards */
.products-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 1.4rem; }
@media (max-width: 760px) { .products-grid { grid-template-columns: 1fr; } }
.product { background: var(--paper-pure); border: 1px solid var(--line); border-radius: 14px; padding: clamp(1.6rem,3vw,2.2rem); position: relative; overflow: hidden; transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.product:hover { transform: translateY(-4px); box-shadow: 0 18px 40px -24px rgba(31,41,55,.4); border-color: #d6d5d1; }
.product .ptag { font-size: .72rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--red); }
.product h3 { margin-top: .7rem; font-size: 1.5rem; font-weight: 700; letter-spacing: -0.02em; }
.product p { margin-top: .7rem; color: var(--ink-soft); font-weight: 300; font-size: 1rem; }
.product.wide { grid-column: 1 / -1; }
.product .meta { margin-top: 1.1rem; display: flex; flex-wrap: wrap; gap: .5rem; }

/* Dark */
.dark { background: var(--ink); color: var(--paper); --red: #f5f5f4; --red-deep: #ffffff; }
.dark .btn-primary { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.dark .btn-primary:hover { background: transparent; color: var(--paper); border-color: var(--paper); }
.dark .sec-label { color: #6b7280; }
.dark .sec-label::before { background: var(--red); }
.dark .sec-head p { color: #cbd5d8; }

/* Work */
.work { display: grid; gap: 1.4rem; }
.case { border: 1px solid var(--line-dark); border-radius: 16px; overflow: hidden; background: #1b242f; transition: background .25s ease, border-color .25s ease; }
.case:hover { background: #212c39; border-color: #44505f; }
.case-inner { padding: clamp(1.8rem,4vw,2.8rem); display: grid; grid-template-columns: minmax(0,0.9fr) minmax(0,1.1fr); gap: clamp(1.5rem,4vw,3rem); align-items: center; }
@media (max-width: 820px) { .case-inner { grid-template-columns: 1fr; gap: 1.6rem; } }
.case .cname { font-size: clamp(1.5rem,3.5vw,2.1rem); font-weight: 700; letter-spacing: -0.02em; }
.case .crole { margin-top: .5rem; font-size: .78rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--red); }
.case .cdesc { margin-top: 1.1rem; color: #cbd5d8; font-weight: 300; font-size: 1.02rem; line-height: 1.6; }
.case ul { margin-top: 1.2rem; list-style: none; display: grid; gap: .6rem; }
.case li { display: flex; gap: .7rem; align-items: flex-start; font-size: .98rem; color: #e5e7eb; font-weight: 300; }
.case li::before { content: ''; flex: none; margin-top: .55rem; width: 7px; height: 7px; background: var(--red); border-radius: 2px; }
.nums { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line-dark); border: 1px solid var(--line-dark); border-radius: 12px; overflow: hidden; }
.nums .cell { background: #1b242f; padding: 1.3rem 1.2rem; }
.nums .n { font-size: clamp(1.8rem,4vw,2.6rem); font-weight: 200; letter-spacing: -0.03em; line-height: 1; }
.nums .n b { color: var(--red); font-weight: 200; }
.nums .l { margin-top: .5rem; font-size: .8rem; color: #9aa6b2; font-weight: 400; letter-spacing: .02em; }
.engine { display: flex; flex-direction: column; gap: .9rem; }
.engine .src { display: inline-flex; align-self: flex-start; align-items: center; gap: .6rem; background: var(--red); color: var(--ink); font-weight: 700; font-size: .95rem; padding: .55rem 1rem; border-radius: 999px; }
.engine .fan { color: #6b7280; font-size: 1.4rem; line-height: 1; padding-left: .4rem; }
.engine .outs { display: flex; flex-wrap: wrap; gap: .5rem; }
.chip { font-size: .76rem; font-weight: 500; color: #e5e7eb; border: 1px solid var(--line-dark); border-radius: 999px; padding: .32rem .8rem; }
.chip.lang { border-color: var(--red); color: #fff; }

/* About / portrait */
.about-grid { display: grid; grid-template-columns: minmax(0,0.78fr) minmax(0,1.22fr); gap: clamp(2rem,5vw,4rem); align-items: start; }
@media (max-width: 860px) { .about-grid { grid-template-columns: 1fr; gap: 2.4rem; } }
.portrait { position: relative; }
.portrait img { width: 100%; border-radius: 16px; border: 1px solid var(--line); aspect-ratio: 445/585; object-fit: cover; object-position: center top; }
.portrait .sig { position: absolute; left: -10px; bottom: -10px; background: var(--red); color: #fff; font-weight: 700; font-size: .82rem; letter-spacing: .04em; padding: .5rem .9rem; border-radius: 10px; }
.about-body h2 { font-size: clamp(1.9rem,4.4vw,3rem); font-weight: 300; letter-spacing: -0.025em; line-height: 1.08; }
.about-body h2 strong { font-weight: 800; }
.about-body .kicker { font-size: .95rem; font-weight: 600; color: var(--red); letter-spacing: .02em; margin-top: .9rem; }
.about-body p { margin-top: 1.1rem; color: var(--ink-soft); font-weight: 300; font-size: 1.06rem; line-height: 1.65; }
.about-body p strong { color: var(--ink); font-weight: 600; }
.statbar { margin-top: 2rem; display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
@media (max-width: 560px) { .statbar { grid-template-columns: 1fr 1fr; } }
.statbar .s { background: var(--paper-pure); padding: 1.1rem 1rem; }
.statbar .s .n { font-size: 1.7rem; font-weight: 200; letter-spacing: -0.02em; color: var(--ink); }
.statbar .s .n b { color: var(--red); font-weight: 300; }
.statbar .s .l { margin-top: .3rem; font-size: .76rem; color: var(--ink-soft); }
.cred { margin-top: 2rem; }
.cred h4 { font-size: .76rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: .9rem; }
.cred ul { list-style: none; display: grid; gap: .55rem; }
.cred li { font-size: .95rem; color: var(--ink-soft); display: flex; gap: .7rem; }
.cred li b { color: var(--ink); font-weight: 600; }
.cred li::before { content: '—'; color: var(--red); font-weight: 700; }
.socials { margin-top: 1.8rem; display: flex; flex-wrap: wrap; gap: .6rem; }
.socials a { font-size: .82rem; font-weight: 500; color: var(--ink); border: 1px solid var(--line); border-radius: 999px; padding: .4rem .9rem; transition: all .2s ease; }
.socials a:hover { border-color: var(--red); color: var(--red); }

/* White glove */
.glove-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.4rem; margin-top: .5rem; }
@media (max-width: 820px) { .glove-grid { grid-template-columns: 1fr; } }
.gcard { background: #1b242f; border: 1px solid var(--line-dark); border-radius: 14px; padding: 1.8rem; }
.gcard .gi { width: 38px; height: 38px; border-radius: 10px; background: rgba(245,245,244,.12); color: var(--red); display: grid; place-items: center; font-weight: 800; font-size: 1.1rem; }
.gcard h3 { margin-top: 1.1rem; font-size: 1.2rem; font-weight: 700; }
.gcard p { margin-top: .6rem; color: #cbd5d8; font-weight: 300; font-size: .98rem; }
.seats { margin-top: 2.6rem; display: flex; align-items: center; gap: 1.4rem; flex-wrap: wrap; border-top: 1px solid var(--line-dark); padding-top: 2rem; }
.seats .dots { display: flex; gap: .6rem; }
.seats .seat { width: 30px; height: 30px; border-radius: 8px; border: 2px solid var(--line-dark); }
.seats .seat.filled { background: var(--red); border-color: var(--red); }
.seats .scopy { font-size: 1.02rem; color: #e5e7eb; font-weight: 300; }
.seats .scopy b { color: #fff; font-weight: 700; }

/* Philosophy */
.philosophy .big { font-size: clamp(1.8rem,4.6vw,3.4rem); font-weight: 300; letter-spacing: -0.025em; line-height: 1.18; max-width: 24ch; }
.philosophy .big .h { font-weight: 200; }
.philosophy .big .d { font-weight: 800; color: var(--red); }
.philosophy .who { margin-top: 2.2rem; max-width: 56ch; color: var(--ink-soft); font-weight: 300; font-size: 1.12rem; }
.philosophy .who + .who { margin-top: 1.2rem; }

/* FAQ */
.faq { display: grid; gap: 0; border-top: 1px solid var(--line); }
details.qa { border-bottom: 1px solid var(--line); padding: 1.4rem 0; }
details.qa summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; gap: 1rem; align-items: center; font-size: clamp(1.05rem,2.2vw,1.25rem); font-weight: 500; color: var(--ink); }
details.qa summary::-webkit-details-marker { display: none; }
details.qa summary .mk { flex: none; width: 26px; height: 26px; border-radius: 50%; border: 1px solid var(--line); display: grid; place-items: center; color: var(--red); font-weight: 700; transition: transform .25s ease, background .25s ease; }
details.qa[open] summary .mk { transform: rotate(45deg); background: var(--red); color: #fff; border-color: var(--red); }
details.qa p { margin-top: 1rem; color: var(--ink-soft); font-weight: 300; font-size: 1.04rem; max-width: 70ch; }
.dark .faq { border-top-color: var(--line-dark); }
.dark details.qa { border-bottom-color: var(--line-dark); }
.dark details.qa summary { color: var(--paper); }
.dark details.qa p { color: #cbd5d8; }

/* Blog */
.blog-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.4rem; }
@media (max-width: 760px) { .blog-grid { grid-template-columns: 1fr; } }
.post-card { display: flex; flex-direction: column; background: var(--paper-pure); border: 1px solid var(--line); border-radius: 14px; padding: clamp(1.6rem,3vw,2rem); transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.post-card:hover { transform: translateY(-4px); box-shadow: 0 18px 40px -24px rgba(31,41,55,.4); border-color: #d6d5d1; }
.post-card.featured { grid-column: 1 / -1; }
.post-card .cat { font-size: .72rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--red); }
.post-card h3 { margin-top: .7rem; font-size: clamp(1.25rem,2.6vw,1.7rem); font-weight: 700; letter-spacing: -0.02em; line-height: 1.18; }
.post-card p { margin-top: .7rem; color: var(--ink-soft); font-weight: 300; font-size: 1rem; }
.post-card .pm { margin-top: 1.1rem; font-size: .8rem; color: var(--ink-faint); display: flex; gap: .6rem; align-items: center; }
.post-card .more { margin-top: 1.1rem; font-weight: 600; font-size: .9rem; color: var(--red); display: inline-flex; gap: .4rem; }
.post-card.soon { background: transparent; border-style: dashed; }
.post-card.soon h3 { font-weight: 600; }
.post-card.soon .cat { color: var(--ink-faint); }

/* Article / prose */
.article { padding: clamp(7rem, 16vh, 9.5rem) 0 4rem; }
.article .head { max-width: var(--measure); margin: 0 auto; }
.article .cat { font-size: .74rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--red); }
.article h1 { margin-top: 1rem; font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1.08; }
.article .pm { margin-top: 1.4rem; font-size: .9rem; color: var(--ink-faint); display: flex; gap: .7rem; align-items: center; flex-wrap: wrap; }
.article .pm .au { color: var(--ink-soft); font-weight: 600; }
.prose { max-width: var(--measure); margin: 2.6rem auto 0; }
.prose > * + * { margin-top: 1.3rem; }
.prose p { font-size: 1.12rem; line-height: 1.75; color: #313c49; font-weight: 400; }
.prose h2 { margin-top: 2.6rem; font-size: clamp(1.5rem, 3.4vw, 2rem); font-weight: 700; letter-spacing: -0.02em; line-height: 1.2; }
.prose h3 { margin-top: 2rem; font-size: 1.3rem; font-weight: 700; letter-spacing: -0.01em; }
.prose ul, .prose ol { padding-left: 1.3rem; }
.prose li { font-size: 1.1rem; line-height: 1.7; color: #313c49; margin-top: .5rem; }
.prose strong { font-weight: 700; color: var(--ink); }
.prose a { color: var(--red); border-bottom: 1px solid rgba(31,41,55,.3); }
.prose a:hover { border-bottom-color: var(--red); }
.prose blockquote { border-left: 3px solid var(--red); padding: .4rem 0 .4rem 1.4rem; margin-left: 0; font-size: 1.25rem; font-weight: 300; color: var(--ink); font-style: italic; }
.prose .lead { font-size: 1.28rem; line-height: 1.6; color: var(--ink-soft); font-weight: 300; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2.6rem 0; }
.takeaway { background: var(--paper-pure); border: 1px solid var(--line); border-left: 3px solid var(--red); border-radius: 12px; padding: 1.4rem 1.6rem; }
.takeaway h4 { font-size: .76rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--red); margin-bottom: .6rem; }
.author-box { max-width: var(--measure); margin: 3rem auto 0; display: flex; gap: 1.2rem; align-items: center; background: var(--paper-pure); border: 1px solid var(--line); border-radius: 14px; padding: 1.4rem 1.6rem; }
.author-box img { width: 64px; height: 64px; border-radius: 50%; object-fit: cover; object-position: center top; flex: none; }
.author-box .ab-name { font-weight: 700; }
.author-box .ab-bio { margin-top: .3rem; font-size: .92rem; color: var(--ink-soft); font-weight: 300; }

/* Books */
.books { display: grid; gap: 1.4rem; max-width: 860px; }
.book { display: grid; grid-template-columns: 132px 1fr; gap: 1.6rem; background: var(--paper-pure); border: 1px solid var(--line); border-radius: 14px; padding: 1.5rem; align-items: start; transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.book:hover { transform: translateY(-3px); box-shadow: 0 18px 40px -26px rgba(31,41,55,.5); border-color: #d6d5d1; }
@media (max-width: 560px) { .book { grid-template-columns: 96px 1fr; gap: 1.1rem; padding: 1.1rem; } }
.book .cover img { width: 100%; border-radius: 6px; box-shadow: 0 12px 28px -14px rgba(31,41,55,.55); }
.book .bt { font-size: 1.2rem; font-weight: 700; letter-spacing: -0.01em; line-height: 1.2; }
.book .bsub { margin-top: .35rem; font-size: .88rem; color: var(--ink-soft); font-weight: 400; }
.book .bby { margin-top: .55rem; font-size: .78rem; letter-spacing: .02em; color: var(--ink-faint); }
.book p.bd { margin-top: .8rem; font-size: .94rem; color: var(--ink-soft); font-weight: 300; line-height: 1.6; }
.book .bamz { margin-top: 1rem; display: inline-flex; align-items: center; gap: .4rem; font-size: .82rem; font-weight: 600; color: var(--ink); border: 1px solid var(--ink); border-radius: 999px; padding: .45rem 1rem; transition: all .2s ease; }
.book .bamz:hover { background: var(--ink); color: var(--paper); }

/* CTA */
.cta.dark { text-align: center; padding: clamp(5rem,12vh,9rem) 0; }
.cta h2 { font-size: clamp(2.1rem,5.5vw,4rem); font-weight: 300; letter-spacing: -0.03em; line-height: 1.05; }
.cta h2 strong { font-weight: 800; }
.cta p { margin: 1.4rem auto 0; max-width: 46ch; color: #cbd5d8; font-weight: 300; font-size: 1.1rem; }
.cta .btn { margin-top: 2.6rem; }
.cta .subtle { margin-top: 1.4rem; font-size: .85rem; color: #8b97a3; }

/* Footer */
footer.site { padding: 3rem 0; border-top: 1px solid var(--line); }
.foot { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; }
.foot-links { display: flex; gap: 1.4rem; flex-wrap: wrap; }
.foot-links a { font-size: .85rem; color: var(--ink-soft); }
.foot-links a:hover { color: var(--red); }
.foot .word { font-size: 1.15rem; }
.foot .meta { font-size: .82rem; color: var(--ink-faint); }
.foot a.mail { font-weight: 600; border-bottom: 2px solid var(--red); padding-bottom: 1px; color: var(--ink); }
.foot a.mail:hover { color: var(--red); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s cubic-bezier(.2,.6,.2,1), transform .7s cubic-bezier(.2,.6,.2,1); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } }