/*
 * Books in the AH Field Guide reader (content/books/<key>/, scripts/books/build_book.py).
 * Adds to field-guide.css: the cover in the hero, story text (lead, dialogue), the boxes
 * (ask the assistant, check it yourself, consultant's note, your task, warning), the rule in
 * Ruqaa, figures with an optional before/after switch, and code titles.
 */
/* the cover as a bound book: an Arabic book is bound on the right, so the spine shows on the right */
.ah-book .ah-bk-cover-wrap{display:grid;justify-items:center;gap:18px;align-content:center;perspective:1600px}
.ah-bk-book{--w:min(290px,64vw);--d:30px;position:relative;width:var(--w);aspect-ratio:2/3;transform-style:preserve-3d;transform:rotateY(-24deg) rotateX(4deg);transition:transform .7s var(--ah-ease)}
.ah-book[dir="ltr"] .ah-bk-book{transform:rotateY(24deg) rotateX(4deg)}
.ah-bk-book__front{position:absolute;inset:0;border-radius:2px 5px 5px 2px;overflow:hidden;box-shadow:0 34px 50px -18px rgba(0,0,0,.6),0 4px 10px rgba(0,0,0,.25);transform:translateZ(calc(var(--d) / 2))}
.ah-bk-book__front svg{display:block;width:100%;height:100%}
/* the hinge: a soft shading line where the cover meets the spine */
.ah-bk-book__front::after{content:"";position:absolute;inset-block:0;inset-inline-start:0;width:14px;background:linear-gradient(to left,rgba(0,0,0,.28),rgba(255,255,255,.06) 40%,transparent);pointer-events:none}
.ah-bk-book__spine{position:absolute;top:0;bottom:0;left:100%;width:var(--d);transform-origin:left center;transform:translateZ(calc(var(--d) / 2)) rotateY(90deg);display:flex;flex-direction:column;align-items:center;justify-content:space-between;padding-block:18px;writing-mode:vertical-rl;font:800 13px/1 var(--ah-f-display);border-radius:2px}
/* an English book is bound on the left */
.ah-book[dir="ltr"] .ah-bk-book__spine{left:auto;right:100%;transform-origin:right center;transform:translateZ(calc(var(--d) / 2)) rotateY(-90deg)}
.ah-book[dir="ltr"] .ah-bk-book__front::after{background:linear-gradient(to right,rgba(0,0,0,.28),rgba(255,255,255,.06) 40%,transparent)}
.ah-bk-book__spine-by{font:600 10px/1 var(--ah-f-body);opacity:.75}
.ah-bk-book--dark .ah-bk-book__spine{background:linear-gradient(to right,#060D20,#0F1B3C 60%,#1A2952);color:var(--ah-gold-hi)}
.ah-bk-book--light .ah-bk-book__spine{background:linear-gradient(to right,#DDD8CB,#F3EFE6 60%,#E9E4D7);color:var(--ah-navy)}
.ah-book .ah-bk-cover-wrap:hover .ah-bk-book{transform:rotateY(-12deg) rotateX(2deg)}
.ah-book[dir="ltr"] .ah-bk-cover-wrap:hover .ah-bk-book{transform:rotateY(12deg) rotateX(2deg)}
@media (prefers-reduced-motion:reduce){.ah-bk-book,.ah-book[dir="ltr"] .ah-bk-book,.ah-book .ah-bk-cover-wrap:hover .ah-bk-book{transition:none}}
@media (max-width:767px){.ah-bk-book{--w:min(230px,60vw);--d:24px}}

/* chapter openings: the chapter number set large in outline above the title */
.ah-bk-chapter::before{content:attr(data-key);display:block;font:800 clamp(64px,9vw,104px)/.9 var(--ah-f-display);color:color-mix(in srgb,var(--ah-gold) 34%,transparent);margin-block-end:4px;font-variant-numeric:tabular-nums;letter-spacing:0}
.ah-bk-chapter[data-key="00"]::before,.ah-bk-chapter[data-key="epilogue"]::before,.ah-bk-chapter[data-key="glossary"]::before,.ah-bk-chapter[data-key="rules"]::before{content:none}
.ah-bk-chapter > h2{font-size:clamp(28px,3.4vw,40px);line-height:1.35;letter-spacing:0}

/* a book in one language only: no language switch */
.ah-book[data-langs="ar"] [data-guide-language],.ah-book[data-langs="en"] [data-guide-language]{display:none!important}

/* the rules file that grows one line per chapter */
.ah-bk-file{margin-block:18px 28px;border-radius:12px;overflow:hidden;background:var(--ah-deep);box-shadow:var(--ah-shadow-dark)}
.ah-bk-file-head{display:flex;align-items:center;gap:8px;padding:9px 16px;background:var(--ah-navy-2);font:600 12px/1.6 var(--ah-f-body);color:var(--ah-on-navy-muted)}
.ah-bk-file-head::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--ah-gold);box-shadow:16px 0 0 rgba(232,201,136,.35),32px 0 0 rgba(232,201,136,.18);margin-inline-end:34px}
.ah-bk-file-line{padding:14px 18px 16px;font:500 15px/1.9 var(--ah-f-body);color:var(--ah-gold-hi)}

/* story text */
.ah-bk-chapter .ah-bk-when{font:500 13px/1.7 var(--ah-f-body);color:var(--ah-soft);margin-block:-10px 30px;padding-block-end:20px;border-block-end:1px solid var(--ah-line)}
.ah-bk-chapter{font-size:16.5px;line-height:2.05}
.ah-bk-chapter .ah-bk-lead{font-size:18px;line-height:1.95;color:var(--ah-navy);font-weight:500;margin-block:-6px 26px;padding-inline-start:16px;border-inline-start:3px solid var(--ah-gold)}
.ah-bk-chapter .ah-bk-say{padding-inline-start:14px;margin-block:0 12px;color:#2c3140;border-inline-start:2px solid var(--ah-line)}
.ah-bk-chapter .ah-bk-say + p:not(.ah-bk-say){margin-block-start:22px}
.ah-bk-chapter h3{font-family:var(--ah-f-display);font-weight:700;color:var(--ah-navy)}
.ah-bk-chapter[lang="en"] , .ahfg-guide[lang="en"] .ah-bk-chapter{line-height:1.8}

/* boxes */
.ah-bk-box{position:relative;margin-block:28px;padding:18px 20px 6px;background:var(--ah-card);border:1px solid var(--ah-card-line);border-radius:var(--ah-r-card);box-shadow:var(--ah-shadow)}
.ah-bk-box-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-block-end:10px}
.ah-bk-box-head span{display:inline-flex;align-items:center;gap:8px;font:700 13px/1.6 var(--ah-f-display);color:var(--ah-ink-gold)}
.ah-bk-box-head span::before{content:"";width:22px;height:22px;border-radius:7px;background:var(--ah-tint) no-repeat center/14px;border:1px solid var(--ah-tint-line)}
.ah-bk-box p,.ah-bk-box li{font-size:15px;line-height:1.95}
.ah-bk-box ul,.ah-bk-box ol{margin-block:0 14px}
.ah-bk-box--ask{background:var(--ah-navy);border-color:var(--ah-navy-2);color:var(--ah-on-navy);box-shadow:var(--ah-shadow-dark)}
.ah-bk-box--ask .ah-bk-box-head span{color:var(--ah-gold-hi)}
.ah-bk-box--ask .ah-bk-box-head span::before{background-color:rgba(232,201,136,.12);border-color:var(--ah-line-navy);background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23E8C988' stroke-width='2' stroke-linecap='round'><path d='m5 7 5 5-5 5M12 17h7'/></svg>")}
.ah-bk-box--ask .ah-bk-prompt p{color:var(--ah-on-navy);font-size:15px}
.ah-bk-box--ask .ah-bk-prompt strong{color:var(--ah-gold-hi)}
.ah-bk-box--ask code{background:rgba(255,255,255,.08);border-color:var(--ah-line-navy);color:var(--ah-gold-hi)}
.ah-bk-copy{font:600 12px/1 var(--ah-f-body);color:var(--ah-deep);background:var(--ah-gold);border:0;border-radius:999px;padding:8px 14px;cursor:pointer}
.ah-bk-copy:hover{background:var(--ah-gold-hi)}
.ah-bk-copy:focus-visible{outline:2px solid var(--ah-gold-hi);outline-offset:2px}
.ah-bk-box--check .ah-bk-box-head span::before{background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237A5F31' stroke-width='2.2' stroke-linecap='round'><path d='m5 12 4 4L19 6'/></svg>")}
.ah-bk-box--note{background:var(--ah-tint);border-color:var(--ah-tint-line);box-shadow:none}
.ah-bk-box--note .ah-bk-box-head span::before{background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237A5F31' stroke-width='2' stroke-linecap='round'><path d='M4 20h4L19 9l-4-4L4 16Zm9-13 4 4'/></svg>")}
.ah-bk-box--site{border-inline-start:4px solid var(--ah-gold)}
.ah-bk-box--site .ah-bk-box-head span::before{background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237A5F31' stroke-width='2' stroke-linecap='round'><path d='M3 10 12 3l9 7v10H3Zm6 10v-6h6v6'/></svg>")}
.ah-bk-box--more .ah-bk-box-head span::before{background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237A5F31' stroke-width='2' stroke-linecap='round'><path d='M14 3h7v7M21 3 10 14M10 3H3v18h18v-7'/></svg>")}
.ah-bk-box--ask .ah-bk-prompt p{margin-block:0 6px}
.ah-bk-box--task{border-style:dashed;border-color:var(--ah-gold);box-shadow:none;background:transparent}
.ah-bk-box--task .ah-bk-box-head span::before{background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237A5F31' stroke-width='2' stroke-linecap='round'><path d='M9 6h11M9 12h11M9 18h11M4 6h1M4 12h1M4 18h1'/></svg>")}
.ah-bk-box--warn{border-inline-start:4px solid var(--ah-red)}
.ah-bk-box--warn .ah-bk-box-head span{color:var(--ah-red)}
.ah-bk-box--warn .ah-bk-box-head span::before{background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239B3B2A' stroke-width='2.2' stroke-linecap='round'><path d='M12 4 2 20h20Zm0 6v4m0 3v.5'/></svg>")}
.ah-bk-box--scene{background:transparent;box-shadow:none;border:0;border-block:1px solid var(--ah-line);border-radius:0;padding-inline:0}

/* the one rule of the chapter, in Ruqaa */
.ah-bk-rule{display:grid;gap:4px;justify-items:start;margin-block:34px;padding:18px 22px;background:var(--ah-ivory) var(--ah-grain);border-radius:var(--ah-r-card);border:1px solid var(--ah-line)}
.ah-bk-rule-label{font:600 11px/1.6 var(--ah-f-body);color:var(--ah-soft)}
.ah-bk-rule-text{font:700 clamp(22px,3vw,28px)/1.7 var(--ah-f-hand);color:var(--ah-navy);background:linear-gradient(transparent 70%,rgba(232,201,136,.55) 70%);padding-inline:4px}

/* figures */
.guide-chapter .ah-bk-fig{margin:30px 0;padding:14px;border:1px solid var(--ah-card-line);border-radius:var(--ah-r-card);background:var(--ah-card);box-shadow:var(--ah-shadow)}
.ah-bk-fig-art svg{display:block;width:100%;height:auto}
.guide-chapter .ah-bk-fig svg text{font-family:var(--ah-f-body)!important}
.guide-chapter .ah-bk-fig svg .fd,.guide-chapter .ah-bk-fig svg .fd text{font-family:var(--ah-f-display)!important}
.guide-chapter .ah-bk-fig svg .fh,.guide-chapter .ah-bk-fig svg .fh text{font-family:var(--ah-f-hand)!important}
.guide-chapter .ah-bk-fig svg .fm,.guide-chapter .ah-bk-fig svg .fm text{font-family:var(--ah-f-mono)!important}
.guide-chapter .ah-bk-fig figcaption{font-size:13px;line-height:1.9;color:var(--ah-muted);border-top:1px solid var(--ah-line);padding-block-start:12px;margin-block-start:12px}
.ah-bk-fig--missing div{padding:40px;text-align:center;font:12px var(--ah-f-mono);color:var(--ah-soft);background:var(--ah-sand)}
.ah-bk-switch{display:inline-flex;gap:4px;padding:4px;margin-block-end:12px;background:var(--ah-sand);border-radius:999px}
.ah-bk-switch button{font:600 13px/1 var(--ah-f-body);padding:9px 16px;border:0;border-radius:999px;background:transparent;color:var(--ah-muted);cursor:pointer}
.ah-bk-switch button[aria-pressed="true"]{background:var(--ah-navy);color:var(--ah-on-navy)}
.ah-bk-switch button:focus-visible{outline:2px solid var(--ah-gold);outline-offset:2px}
.ah-bk-fig[data-fig-toggle] .st-a,.ah-bk-fig[data-fig-toggle] .st-b{transition:opacity .35s var(--ah-ease)}
.ah-bk-fig[data-fig-toggle][data-state="a"] .st-b,.ah-bk-fig[data-fig-toggle][data-state="b"] .st-a{opacity:0;visibility:hidden}
@media (prefers-reduced-motion:reduce){.ah-bk-fig[data-fig-toggle] .st-a,.ah-bk-fig[data-fig-toggle] .st-b{transition:none}}

/* code with a title */
.guide-chapter .ah-bk-code{margin:24px 0;padding:0;border:0;background:none;box-shadow:none}
.guide-chapter .ah-bk-code figcaption{font-size:12px;border:0;padding:0 0 6px;margin:0;color:var(--ah-soft)}
.guide-chapter .ah-bk-code pre{margin:0}

@media (max-width:767px){
	.ah-bk-chapter{font-size:16px;line-height:2}
	.ah-bk-box{padding:16px 16px 4px}
	.guide-chapter .ah-bk-fig{padding:8px;margin-inline:-6px}
	.ah-bk-rule{padding:16px}
}
@media print{
	.ah-bk-switch,.ah-bk-copy{display:none}
	.ah-bk-fig[data-fig-toggle] .st-a,.ah-bk-fig[data-fig-toggle] .st-b{opacity:1;visibility:visible}
	.ah-bk-box--ask{background:#fff;color:#000;border:1px solid #999}
	.ah-bk-box--ask .ah-bk-prompt p{color:#000}
}