/* ============ Katalog: sayfası çevrilen kitap ============ */
.catalog-hero { padding: 130px 0 10px; background: radial-gradient(ellipse at 50% 0%, #e9efe0 0%, var(--paper) 60%); }
.catalog-hero .crumbs { color: var(--muted); }
.catalog-hero .crumbs a { color: var(--green-800); }
.catalog-hero h1 { font-size: clamp(2.2rem, 1.5rem + 2.6vw, 3.6rem); margin: 0 0 .3em; }
.catalog-hero p { color: var(--muted); max-width: 640px; margin: 0; }
.catalog-hero__row { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; flex-wrap: wrap; }

.book-wrap { padding: 28px 0 70px; background: radial-gradient(ellipse at 50% 40%, #e3e9d8 0%, var(--paper) 65%); overflow: hidden; }
.book-stage { position: relative; width: min(100%, calc((100svh - 190px) * 1.444), 1180px); margin: 0 auto; animation: bookIn 1.2s var(--ease) both; }
@keyframes bookIn { from { opacity: 0; transform: translateY(40px) rotateX(18deg) scale(.94); } }
.book-stage::before { content: ""; position: absolute; left: 6%; right: 6%; bottom: -26px; height: 40px; background: radial-gradient(ellipse at center, rgba(16, 38, 26, .35), transparent 70%); filter: blur(6px); z-index: -1; }
#book { margin: 0 auto; }
#book:not(.is-ready) .page ~ .page { display: none; }

/* sayfa kağıdı */
.page { background: #fbf8f1; color: var(--ink); overflow: hidden; }
.page__in { position: absolute; inset: 0; display: flex; flex-direction: column; padding: 7% 8% 5%; }
.page--left .page__in { background: linear-gradient(270deg, rgba(60, 45, 20, .16) 0%, rgba(60, 45, 20, .04) 5%, transparent 12%); }
.page--right .page__in { background: linear-gradient(90deg, rgba(60, 45, 20, .16) 0%, rgba(60, 45, 20, .04) 5%, transparent 12%); }
.page__in::after { content: ""; position: absolute; inset: 0; pointer-events: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .35 0 0 0 0 .3 0 0 0 0 .2 0 0 0 .07 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); opacity: .8; }

.pg-head { display: flex; justify-content: space-between; font-size: clamp(.55rem, .45rem + .25vw, .72rem); letter-spacing: .16em; text-transform: uppercase; color: #8a8f7f; font-weight: 700; padding-bottom: 3%; border-bottom: 1px solid rgba(27, 42, 33, .1); margin-bottom: 5%; }
.pg-foot { margin-top: auto; padding-top: 3%; display: flex; justify-content: space-between; align-items: center; font-family: var(--serif); font-size: clamp(.7rem, .6rem + .3vw, .9rem); color: #8a8f7f; }
.page--left .pg-foot { flex-direction: row-reverse; }

/* ürün sayfası */
.pg-img { position: relative; margin: 0 0 5%; border-radius: 10px; overflow: hidden; aspect-ratio: 4 / 3; background: #e8e2d2; flex: none; }
.pg-img img { width: 100%; height: 100%; object-fit: cover; }
.pg-num { position: absolute; left: 10px; top: 10px; padding: 4px 10px; border-radius: 999px; background: rgba(251, 248, 241, .92); font-size: clamp(.55rem, .45rem + .25vw, .72rem); font-weight: 800; letter-spacing: .1em; color: var(--green-800); }
.pg-title { font-family: var(--serif); font-size: clamp(1.1rem, .75rem + 1.3vw, 1.9rem); line-height: 1.1; margin: 0; color: var(--green-950); }
.pg-latin { font-family: var(--serif); font-style: italic; color: var(--green-500); margin: .25em 0 .8em; font-size: clamp(.72rem, .6rem + .35vw, .98rem); }
.pg-desc { font-size: clamp(.7rem, .55rem + .45vw, .95rem); line-height: 1.55; color: #3c4a40; margin: 0 0 4%; }
.pg-specs { display: grid; grid-template-columns: auto 1fr; gap: 0; margin: 0; font-size: clamp(.62rem, .5rem + .35vw, .84rem); border-top: 1px solid rgba(27, 42, 33, .1); }
.pg-specs dt, .pg-specs dd { padding: .45em 0; border-bottom: 1px solid rgba(27, 42, 33, .1); margin: 0; }
.pg-specs dt { color: #8a8f7f; padding-right: 1.2em; font-weight: 600; }
.pg-specs dd { font-weight: 600; color: var(--green-900); }
.pg-actions { display: flex; gap: 8px; margin-top: 4%; }
.pg-add, .pg-ask { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: .6em 1em; border-radius: 999px; font: 700 clamp(.62rem, .5rem + .35vw, .82rem) var(--sans); cursor: pointer; text-decoration: none; border: 1.5px solid var(--green-800); transition: background .25s, color .25s, transform .3s cubic-bezier(.34, 1.56, .64, 1); }
.pg-add { background: var(--green-800); color: #fff; flex: 1; }
.pg-add:hover { background: var(--green-700); }
.pg-add.is-added { background: var(--terra); border-color: var(--terra); }
.pg-add:active { transform: scale(.95); }
.pg-ask { background: transparent; color: var(--green-800); }
.pg-ask:hover { background: #eef3e8; }

/* bölüm (kategori) sayfası */
.page--divider .page__in { padding: 0; color: #fff; justify-content: flex-end; }
.page--divider .pg-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.page--divider .page__in::before { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(10, 26, 16, .92) 0%, rgba(10, 26, 16, .55) 45%, rgba(10, 26, 16, .1) 100%); }
.pg-divider { position: relative; padding: 9% 9% 10%; }
.pg-divider b { display: block; font-family: var(--serif); font-size: clamp(2.6rem, 1.5rem + 4vw, 5.2rem); line-height: .9; color: rgba(255, 255, 255, .25); -webkit-text-stroke: 1px rgba(255, 255, 255, .6); }
.pg-divider h2 { color: #fff; font-size: clamp(1.4rem, .9rem + 1.8vw, 2.6rem); margin: .2em 0 .3em; }
.pg-divider p { color: rgba(255, 255, 255, .85); font-size: clamp(.72rem, .6rem + .4vw, 1rem); margin: 0 0 1em; }
.pg-divider ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.pg-divider li { padding: .3em .8em; border: 1px solid rgba(255, 255, 255, .35); border-radius: 999px; font-size: clamp(.58rem, .5rem + .3vw, .78rem); }

/* kapaklar */
.page--cover .page__in { padding: 0; color: #fff; background: var(--green-900); }
.page--cover .pg-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .55; }
.page--cover .page__in::before { content: ""; position: absolute; inset: 0; background: linear-gradient(160deg, rgba(16, 38, 26, .3) 0%, rgba(16, 38, 26, .92) 70%); }
.pg-cover { position: relative; height: 100%; display: flex; flex-direction: column; padding: 11% 10%; }
.pg-cover__brand { display: flex; align-items: center; gap: .5em; font-family: var(--serif); font-size: clamp(1rem, .8rem + .8vw, 1.5rem); }
.pg-cover__brand svg { width: 1.6em; height: 1.6em; color: #cfe0bf; }
.pg-cover h1, .pg-cover .pg-cover__title { font-family: var(--serif); font-size: clamp(2.2rem, 1.3rem + 3.6vw, 4.6rem); line-height: .98; margin: auto 0 .25em; color: #fff; font-weight: 500; }
.pg-cover__title em { color: #d9c48a; font-weight: 400; }
.pg-cover p { color: rgba(255, 255, 255, .85); font-size: clamp(.75rem, .6rem + .45vw, 1.05rem); max-width: 90%; margin: 0 0 1.4em; }
.pg-cover__year { display: inline-block; padding: .35em 1em; border: 1px solid #d9c48a; color: #d9c48a; border-radius: 999px; font-size: clamp(.6rem, .5rem + .3vw, .8rem); letter-spacing: .2em; font-weight: 700; align-self: flex-start; }
.pg-cover__rule { position: absolute; inset: 4.5%; border: 1px solid rgba(217, 196, 138, .45); border-radius: 6px; pointer-events: none; }

/* bilgi sayfaları */
.pg-text h2 { font-size: clamp(1.2rem, .8rem + 1.4vw, 2.1rem); margin: 0 0 .5em; }
.pg-text p { font-size: clamp(.72rem, .58rem + .45vw, .98rem); color: #3c4a40; line-height: 1.6; }
.pg-steps { list-style: none; counter-reset: s; padding: 0; margin: 6% 0 0; display: grid; gap: 4%; }
.pg-steps li { counter-increment: s; display: grid; grid-template-columns: auto 1fr; gap: .9em; align-items: start; font-size: clamp(.7rem, .56rem + .42vw, .95rem); }
.pg-steps li::before { content: counter(s); width: 2.2em; height: 2.2em; border-radius: 50%; display: grid; place-items: center; background: var(--green-800); color: #fff; font-family: var(--serif); }
.pg-steps b { display: block; font-family: var(--serif); font-size: 1.15em; color: var(--green-950); }
.pg-toc { list-style: none; padding: 0; margin: 4% 0 0; display: grid; }
.pg-toc a { display: grid; grid-template-columns: auto 1fr auto; gap: .8em; align-items: baseline; padding: .7em 0; border-bottom: 1px dashed rgba(27, 42, 33, .2); text-decoration: none; font-size: clamp(.75rem, .6rem + .5vw, 1.05rem); transition: color .25s, padding .3s var(--ease); }
.pg-toc a:hover { color: var(--terra); padding-left: .4em; }
.pg-toc i { font-style: normal; font-family: var(--serif); color: var(--green-500); }
.pg-toc span { font-weight: 600; }
.pg-toc em { font-style: normal; font-family: var(--serif); color: #8a8f7f; }
.pg-contact dl { display: grid; gap: .9em; margin: 6% 0; }
.pg-contact dt { font-size: clamp(.55rem, .45rem + .25vw, .72rem); letter-spacing: .14em; text-transform: uppercase; color: var(--green-500); font-weight: 800; }
.pg-contact dd { margin: 0; font-weight: 600; font-size: clamp(.78rem, .6rem + .55vw, 1.1rem); }
.pg-svc { columns: 2; gap: 1.2em; padding: 0; margin: 4% 0 0; list-style: none; font-size: clamp(.66rem, .52rem + .42vw, .9rem); }
.pg-svc li { break-inside: avoid; padding: .35em 0; border-bottom: 1px solid rgba(27, 42, 33, .08); }
.pg-svc a { text-decoration: none; }
.pg-svc a:hover { color: var(--terra); }

/* kontroller */
.book-ui { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 30px; flex-wrap: wrap; }
.book-btn { width: 50px; height: 50px; border-radius: 50%; border: 0; background: #fff; box-shadow: var(--shadow); color: var(--green-900); font-size: 22px; cursor: pointer; transition: transform .3s cubic-bezier(.34, 1.56, .64, 1), background .25s, color .25s; }
.book-btn:hover { background: var(--green-800); color: #fff; transform: scale(1.08); }
.book-btn:disabled { opacity: .35; pointer-events: none; }
.book-count { min-width: 92px; text-align: center; font-family: var(--serif); font-size: 1.1rem; color: var(--green-900); }
.book-count b { font-weight: 600; }
.book-select { font: 600 .9rem var(--sans); padding: .75rem 2.2rem .75rem 1rem; border-radius: 999px; border: 1.5px solid var(--line); background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='m6 9 6 6 6-6' fill='none' stroke='%231f4630' stroke-width='2'/%3E%3C/svg%3E") right 12px center/16px no-repeat; appearance: none; color: var(--green-900); cursor: pointer; }
.book-hint { position: absolute; right: 3%; bottom: 8%; z-index: 5; display: flex; align-items: center; gap: 10px; padding: 10px 16px 10px 12px; border-radius: 999px; background: rgba(16, 38, 26, .88); color: #fff; font-size: .85rem; font-weight: 600; pointer-events: none; animation: hintIn .6s var(--ease) 1.4s both; transition: opacity .4s, transform .4s; }
.book-hint.is-gone { opacity: 0; transform: translateY(10px); }
.book-hint svg { width: 26px; height: 26px; animation: hintHand 1.8s ease-in-out infinite; }
@keyframes hintIn { from { opacity: 0; transform: translateY(12px); } }
@keyframes hintHand { 0%, 100% { transform: translateX(6px) rotate(0); } 50% { transform: translateX(-10px) rotate(-12deg); } }

/* liste görünümü */
.catalog-list { padding: clamp(60px, 7vw, 100px) 0; }
.catalog-cat { margin-top: 56px; }
.catalog-cat:first-of-type { margin-top: 0; }
.catalog-cat > h2 { font-size: clamp(1.6rem, 1.2rem + 1.2vw, 2.3rem); display: flex; align-items: baseline; gap: .5em; }
.catalog-cat > h2 small { font-family: var(--sans); font-size: .8rem; letter-spacing: .14em; color: var(--green-500); font-weight: 700; }
.pcards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.pcard { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: transform .5s var(--ease), box-shadow .5s var(--ease); }
.pcard:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.pcard img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.pcard__b { padding: 16px 18px 18px; display: flex; flex-direction: column; gap: 4px; flex: 1; }
.pcard h3 { margin: 0; font-size: 1.12rem; }
.pcard .pg-latin { margin: 0 0 6px; font-size: .85rem; }
.pcard p { margin: 0 0 12px; font-size: .88rem; color: var(--muted); }
.pcard .pg-add { margin-top: auto; font-size: .82rem; }
@media (max-width: 1080px) { .pcards { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 760px) { .pcards { grid-template-columns: repeat(2, 1fr); } .book-hint { font-size: .75rem; } }
@media (max-width: 480px) { .pcards { grid-template-columns: 1fr; } }
@media (prefers-reduced-motion: reduce) { .book-stage { animation: none; } .book-hint svg { animation: none; } }

/* sayfaya sığma: görsel kalan alanı esnek kullanır, metin her zaman görünür */
.page--right .pg-img, .page--left .pg-img, .page .pg-img { aspect-ratio: auto; flex: 1 1 0; min-height: 18%; margin-bottom: 4%; }
.pg-specs dt, .pg-specs dd { padding: .35em 0; }
.pg-desc { margin-bottom: 3%; }
/* kapalı kitap ortada dursun */
#book { transition: transform .9s var(--ease); }
.book-stage.is-closed-front #book { transform: translateX(-25%); }
.book-stage.is-closed-back #book { transform: translateX(25%); }
.pg-specs dt { padding-right: 1.2em; }