.sec { padding: clamp(3.5rem, 9vw, 7rem) 0; border-top: 1px solid var(--line); }
.sec-dark { background: var(--ink); color: var(--paper); border-top: 0; }
.sec.sec-dark .label, .sec.sec-dark .intro { color: #d8d1c3; }
.sec-tint { background: var(--paper-2); }
.sec h2 { font-size: clamp(1.9rem, 1.3rem + 2.4vw, 3rem); line-height: 1.1; font-weight: 500; letter-spacing: -0.02em; margin: 0.8rem 0 1.2rem; max-width: 24ch; }
.sec .intro { color: var(--ink-2); max-width: 42rem; margin: 0 0 2.5rem; font-size: clamp(1.08rem, 1rem + 0.35vw, 1.22rem); }

.p-hero { padding: clamp(2.5rem, 7vw, 6rem) 0 clamp(3rem, 8vw, 6rem); }
.p-hero-grid { display: grid; grid-template-columns: 1.25fr 0.75fr; gap: clamp(2rem, 6vw, 5rem); align-items: center; }
.p-hero h1 { font-size: clamp(2.4rem, 1.4rem + 4.2vw, 4.8rem); line-height: 1.02; letter-spacing: -0.03em; font-weight: 500; margin: 0.8rem 0 0.6rem; }
.p-hero .sub { font-style: italic; color: var(--red); font-size: clamp(1.2rem, 1rem + 0.9vw, 1.6rem); line-height: 1.3; margin: 0 0 1.4rem; max-width: 34rem; }
.p-hero .lead { color: var(--ink-2); max-width: 38rem; margin: 0 0 1rem; }
.chips { list-style: none; display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1.4rem 0 1.8rem; padding: 0; font-family: var(--sans); font-size: 0.82rem; }
.chips li { border: 1px solid var(--line-strong); padding: 0.3rem 0.75rem; border-radius: 999px; }
.actions { display: flex; flex-wrap: wrap; gap: 0.7rem 1.3rem; align-items: center; }
.p-cover img { box-shadow: 0 1px 2px rgba(0,0,0,0.12), 0 30px 50px -24px rgba(28, 31, 38, 0.6); }
.p-covers { position: relative; }
.p-covers img:nth-child(2) { position: absolute; width: 62%; right: -6%; bottom: -8%; transform: rotate(3deg); }
.p-covers img:first-child { width: 80%; transform: rotate(-2deg); }
.retail { margin: 1.6rem 0 0; font-family: var(--sans); font-size: 0.85rem; color: var(--ink-2); }
.retail ul { display: inline-flex; flex-wrap: wrap; gap: 0.2rem 1rem; list-style: none; padding: 0; margin: 0 0 0 0.4rem; }
.retail a { display: inline-block; padding: 0.3rem 0; color: var(--ink); }
.audio { margin-top: 1.8rem; padding: 1rem 1.1rem; background: var(--sheet); border: 1px solid var(--line); max-width: 30rem; }
.audio p { margin: 0 0 0.6rem; font-family: var(--sans); font-size: 0.85rem; color: var(--ink-2); }
.audio audio { width: 100%; }
@media (max-width: 820px) { .p-hero-grid { grid-template-columns: 1fr; } .p-cover, .p-covers { max-width: 240px; } }

.facts-row { list-style: none; margin: 1.4rem 0 1.8rem; padding: 0; display: flex; flex-wrap: wrap; gap: 0.4rem 1.6rem; font-family: var(--sans); font-size: 0.9rem; }
.facts-row li::before { content: "–"; color: var(--red); margin-right: 0.45rem; }

.stats { list-style: none; margin: 0 0 3rem; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 2px solid var(--ink); }
.stats li { padding: 1.2rem 1.2rem 0 0; }
.stats .src { font-family: var(--sans); font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-2); }
.stats .num { display: block; font-size: clamp(1.8rem, 1.3rem + 1.6vw, 2.6rem); line-height: 1.05; color: var(--red); margin: 0.4rem 0; font-weight: 500; }
.stats p { margin: 0; font-size: 1rem; color: var(--ink-2); line-height: 1.5; }
@media (max-width: 860px) { .stats { grid-template-columns: 1fr 1fr; row-gap: 1.6rem; } }
@media (max-width: 480px) { .stats { grid-template-columns: 1fr; } }

.cards { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.4rem, 3vw, 2.4rem); counter-reset: c; }
.cards.two { grid-template-columns: repeat(2, 1fr); }
.cards > li { border-top: 1px solid var(--line-strong); padding-top: 1.1rem; counter-increment: c; }
.cards.num > li::before { content: counter(c, upper-roman); display: block; font-style: italic; color: var(--red); font-size: 1.4rem; margin-bottom: 0.3rem; }
.sec-dark .cards > li { border-top-color: rgba(244, 239, 230, 0.3); }
.sec-dark .cards.num > li::before { color: #e2867f; }
.cards .k { display: block; font-family: var(--sans); font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-2); margin-bottom: 0.4rem; }
.cards h3 { font-size: 1.25rem; line-height: 1.25; font-weight: 600; margin: 0 0 0.45rem; }
.cards p { margin: 0; font-size: 1.02rem; line-height: 1.55; color: var(--ink-2); }
.sec-dark .cards p { color: #d8d1c3; }
@media (max-width: 860px) { .cards, .cards.two { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .cards, .cards.two { grid-template-columns: 1fr; } }

.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border: 1px solid var(--line); }
.compare > div { padding: clamp(1.3rem, 3vw, 2.2rem); }
.compare > div + div { background: var(--sheet); border-left: 2px solid var(--red); }
.compare h3 { font-size: 1.35rem; margin: 0.4rem 0 0.6rem; font-weight: 600; line-height: 1.25; }
.compare p { margin: 0; color: var(--ink-2); }
@media (max-width: 700px) { .compare { grid-template-columns: 1fr; } .compare > div + div { border-left: 0; border-top: 2px solid var(--red); } }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
@media (max-width: 820px) { .split { grid-template-columns: 1fr; } }
.shot { margin: 0; }
.shot img { border: 1px solid var(--line); box-shadow: 0 20px 40px -24px rgba(28, 31, 38, 0.5); }
.shot figcaption { font-family: var(--sans); font-size: 0.82rem; color: var(--ink-2); margin-top: 0.6rem; }
.gallery { list-style: none; margin: 2.5rem 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(1rem, 3vw, 2rem); }
.gallery a { display: block; text-decoration: none; }
@media (max-width: 560px) { .gallery { grid-template-columns: 1fr; } }

.callout { border-left: 3px solid var(--red); padding: 0.4rem 0 0.4rem 1.3rem; max-width: 42rem; margin: 0; }
.callout strong { display: block; font-size: clamp(1.6rem, 1.2rem + 1.4vw, 2.2rem); color: var(--red); font-weight: 500; line-height: 1.1; margin-bottom: 0.4rem; }
.callout p { margin: 0; }

.books2 { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 4vw, 3rem); }
.books2 article { display: grid; grid-template-columns: 130px 1fr; gap: 1.3rem; align-items: start; background: var(--sheet); border: 1px solid var(--line); padding: clamp(1.2rem, 3vw, 1.8rem); }
.books2 img { box-shadow: 0 14px 24px -14px rgba(28, 31, 38, 0.55); }
.books2 h3 { font-size: 1.45rem; margin: 0.3rem 0 0.5rem; font-weight: 600; line-height: 1.15; }
.books2 p { margin: 0 0 0.8rem; font-size: 1rem; color: var(--ink-2); line-height: 1.55; }
.books2 .for { font-size: 0.95rem; color: var(--ink); }
.guide-hint { margin: 1.8rem 0 0; font-style: italic; }
@media (max-width: 860px) { .books2 { grid-template-columns: 1fr; } }
@media (max-width: 460px) { .books2 article { grid-template-columns: 1fr; } .books2 img { max-width: 120px; } }

.ticks { list-style: none; margin: 1.2rem 0 1.6rem; padding: 0; display: grid; gap: 0.45rem; }
.ticks li { padding-left: 1.3rem; position: relative; }
.ticks li::before { content: "–"; position: absolute; left: 0; color: var(--red); }

.form-card { background: var(--sheet); border: 1px solid var(--line); padding: clamp(1.4rem, 4vw, 2.5rem); max-width: 46rem; }
.form-card h3 { font-size: 1.4rem; margin: 0 0 0.5rem; font-weight: 600; }
.form-card > p { color: var(--ink-2); margin: 0 0 1.4rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem 1.2rem; }
.form-grid .full { grid-column: 1 / -1; }
@media (max-width: 600px) { .form-grid { grid-template-columns: 1fr; } }
.field label { display: block; font-family: var(--sans); font-size: 0.85rem; font-weight: 500; margin-bottom: 0.35rem; }
.field .opt { font-weight: 400; color: var(--ink-2); }
.field input, .field select { width: 100%; min-height: 48px; padding: 0.6rem 0.8rem; font-family: var(--sans); font-size: 1rem; color: var(--ink); background: #fff; border: 1px solid var(--line-strong); border-radius: 2px; }
.field input:focus-visible, .field select:focus-visible { outline: 3px solid var(--red); outline-offset: 1px; border-color: var(--ink); }
.field input[aria-invalid="true"], .field select[aria-invalid="true"] { border-color: var(--red); }
.consent { font-family: var(--sans); font-size: 0.8rem; color: var(--ink-2); margin: 1rem 0 0; }
.status { font-family: var(--sans); font-size: 0.92rem; margin: 0.9rem 0 0; min-height: 1.4em; }
.status.ok { color: #1f6b3a; }
.status.err { color: var(--red); }
.form-actions { margin-top: 1.3rem; }

.author-mini { display: grid; grid-template-columns: 200px 1fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: center; }
.author-mini img { background: var(--paper-3); }
.author-mini h2 { margin-top: 0.4rem; }
.author-mini p { margin: 0 0 1rem; max-width: 38rem; }
.author-mini ul { display: flex; flex-wrap: wrap; gap: 0.3rem 1.3rem; list-style: none; margin: 0; padding: 0; font-family: var(--sans); font-size: 0.92rem; }
.author-mini ul a { display: inline-block; padding: 0.3rem 0; }
@media (max-width: 620px) { .author-mini { grid-template-columns: 1fr; } .author-mini img { max-width: 200px; } }

.final { text-align: left; }
.final h2 { max-width: 26ch; }

.m-cta { position: fixed; left: 0; right: 0; bottom: 0; z-index: 45; padding: 0.6rem var(--gutter) calc(0.6rem + env(safe-area-inset-bottom)); background: var(--ink); display: none; }
.m-cta .btn { width: 100%; background: var(--paper); color: var(--ink); border-color: var(--paper); }
@media (max-width: 760px) { .m-cta { display: block; transform: translateY(110%); transition: transform 0.35s var(--ease); } .m-cta.on { transform: none; } .has-mcta .site-foot { padding-bottom: 5.5rem; } }
@media (max-width: 760px) { .head-nav .hide-sm { display: none; } }