/* Концепт «Розмовник»: друкований розмовник — кремовий папір, лінування, кольорові вкладки-пелюстки, картки-фрази. */
.c-rozmovnyk { --paper: #f4eee2; --ink: #17140f; --ink-2: #4a4335; --rule: #e2d8c4; --red: #c01a1a; background: var(--paper); color: var(--ink);
  background-image: repeating-linear-gradient(to bottom, transparent 0 31px, var(--rule) 31px 32px); background-attachment: local; }
.c-rozmovnyk { --lead-bg: #fbf7ee; --lead-accent: #c01a1a; }
.rz-top { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 18px; padding: 12px clamp(16px, 4vw, 48px); background: rgba(244, 238, 226, .94); border-bottom: 2px solid var(--ink); }
.rz-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; letter-spacing: -.02em; min-height: 44px; }
.rz-logo .rosette { width: 30px; height: 30px; }
.rz-ed { margin-right: auto; font-family: var(--serif); font-style: italic; color: var(--ink-2); font-size: 1rem; }
@media (max-width: 760px) { .rz-ed { display: none; } .rz-logo { margin-right: auto; } }
.rz-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 54px; padding: 0 24px; background: var(--red); color: #fff; font-weight: 700; text-decoration: none; border-radius: 3px; box-shadow: 4px 4px 0 var(--ink); transition: transform .2s var(--ease), box-shadow .2s var(--ease); }
.rz-btn:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--ink); }
.rz-btn-sm { min-height: 44px; padding: 0 16px; font-size: .9375rem; box-shadow: 3px 3px 0 var(--ink); }
.rz-link { display: inline-flex; align-items: center; min-height: 44px; font-weight: 600; text-decoration: underline; text-underline-offset: 4px; }

.rz-hero { padding: clamp(48px, 9vw, 120px) clamp(16px, 4vw, 48px) clamp(40px, 6vw, 80px); max-width: 1240px; margin: 0 auto; }
.rz-kicker { font-size: .8125rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); }
.rz-hero h1 { margin-top: 18px; font-size: clamp(2.6rem, 1.4rem + 5.4vw, 6.4rem); font-weight: 800; line-height: .95; letter-spacing: -.045em; max-width: 13ch; }
.rz-hero h1 em { font-family: var(--serif); font-weight: 500; color: var(--red); letter-spacing: -.02em; }
.rz-sub { margin-top: 24px; max-width: 36rem; font-size: clamp(1.0625rem, 1rem + .4vw, 1.3rem); color: var(--ink-2); }
.rz-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 26px; margin-top: 32px; }

/* книга: вкладки + сторінки */
.rz-book { display: grid; gap: 0; max-width: 1240px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 48px) clamp(48px, 7vw, 96px); }
.rz-tabs { position: sticky; top: 70px; z-index: 10; display: flex; gap: 6px; overflow-x: auto; padding: 10px 0; background: var(--paper); scrollbar-width: none; }
.rz-tabs::-webkit-scrollbar { display: none; }
.rz-tabs a { flex: none; display: flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 14px; border: 2px solid var(--ink); border-left: 8px solid var(--c); background: #fffaf0; text-decoration: none; font-weight: 600; font-size: .9375rem; white-space: nowrap; transition: transform .25s var(--ease); }
.rz-tabs a b { font-family: var(--serif); font-style: italic; font-weight: 500; color: var(--c); }
.rz-tabs a.on { background: var(--ink); color: #fffaf0; transform: translateY(-2px); }
.rz-howto { margin: 18px 0 8px; font-family: var(--serif); font-style: italic; color: var(--ink-2); }
.rz-page { padding: 36px 0 12px; border-top: 2px solid var(--ink); scroll-margin-top: 140px; }
.rz-page:first-of-type { border-top: 0; }
.rz-page > header { display: flex; align-items: baseline; gap: 16px; margin-bottom: 20px; }
.rz-no { font-family: var(--serif); font-style: italic; font-size: 1.2rem; color: var(--c, var(--red)); }
.rz-page h2 { font-size: clamp(1.9rem, 1.3rem + 2.4vw, 3.2rem); font-weight: 800; letter-spacing: -.035em; line-height: 1; }
.rz-cards { display: grid; gap: 14px; }
@media (min-width: 900px) { .rz-book { grid-template-columns: 260px 1fr; gap: 48px; } .rz-tabs { flex-direction: column; top: 96px; align-self: start; padding-top: 36px; } .rz-tabs a { white-space: normal; } .rz-cards { grid-template-columns: repeat(3, 1fr); } }
.rz-card { position: relative; }
/* без 3D-перевороту: Safari не ховає зворотний бік у кнопці (текст просвічував дзеркально) — фрази перетікають */
.rz-flip { position: relative; display: grid; width: 100%; min-height: 170px; padding: 0; border: 0; background: none; cursor: pointer; text-align: left; font: inherit; color: inherit; }
.rz-face { grid-area: 1 / 1; display: flex; align-items: flex-end; padding: 22px 20px 46px; border: 2px solid var(--ink); background: #fffaf0; box-shadow: 5px 5px 0 var(--c); transition: opacity .35s var(--ease), transform .5s var(--ease); }
.rz-en { font-size: 1.3rem; font-weight: 700; letter-spacing: -.015em; line-height: 1.25; }
.rz-ua { opacity: 0; transform: translateY(10px); background: var(--c); color: #fff; border-color: var(--c); box-shadow: 5px 5px 0 var(--ink); font-size: 1.15rem; font-weight: 600; }
.rz-flip[aria-pressed="true"] .rz-en { opacity: 0; transform: translateY(-10px); }
.rz-flip[aria-pressed="true"] .rz-ua { opacity: 1; transform: none; }
.rz-lv { position: absolute; left: 20px; bottom: 14px; z-index: 2; font-size: .75rem; font-weight: 700; letter-spacing: .06em; padding: 2px 8px; border: 1.5px solid var(--ink); background: #fffaf0; pointer-events: none; }
.rz-say { position: absolute; right: 10px; bottom: 8px; z-index: 2; width: 44px; height: 44px; border: 2px solid var(--ink); border-radius: 50%; background: #fffaf0; color: var(--ink); cursor: pointer; font-size: .9rem; transition: background .2s, color .2s; }
.rz-say:hover, .rz-say.on { background: var(--ink); color: #fffaf0; }
.rz-flip:hover .rz-en { text-decoration: underline; text-decoration-color: var(--c); text-underline-offset: 4px; }

/* розділи курсу */
.rz-chapters, .rz-margin, .rz-end { max-width: 1240px; margin: 0 auto; padding: clamp(56px, 8vw, 112px) clamp(16px, 4vw, 48px); }
.rz-chapters { border-top: 2px solid var(--ink); }
.rz-chapters h2, .rz-margin h2 { font-size: clamp(2rem, 1.3rem + 2.6vw, 3.4rem); font-weight: 800; letter-spacing: -.035em; line-height: 1; margin-bottom: 36px; }
.rz-chapters ol { display: grid; gap: 18px; }
@media (min-width: 800px) { .rz-chapters ol { grid-template-columns: 1fr 1fr; } }
.rz-chapters li { display: grid; gap: 10px; align-content: start; padding: 26px 24px; background: #fffaf0; border: 2px solid var(--ink); border-top: 10px solid var(--c); }
.rz-chapters h3 { font-size: 1.5rem; font-weight: 800; letter-spacing: -.02em; line-height: 1.1; }
.rz-chapters p { color: var(--ink-2); }
.rz-inside { font-size: .9375rem; font-weight: 600; color: var(--ink) !important; }

/* поля книги: факти про пропуски */
.rz-margin { background: var(--ink); color: #f4eee2; max-width: none; }
.rz-margin h2 { max-width: 1240px; margin-left: auto; margin-right: auto; }
.rz-margin dl { max-width: 1240px; margin: 0 auto; display: grid; gap: 0; }
.rz-margin dl > div { display: grid; gap: 6px 32px; padding: 20px 0; border-top: 1px solid rgba(244, 238, 226, .2); }
.rz-margin dt { font-family: var(--serif); font-style: italic; font-size: 1.6rem; color: #f1b711; }
.rz-margin dd { margin: 0; color: #d9d2c3; }
@media (min-width: 800px) { .rz-margin dl > div { grid-template-columns: 320px 1fr; } }

.rz-end { text-align: center; }
.rz-big { font-size: clamp(2.4rem, 1.2rem + 5vw, 5.6rem); font-weight: 800; letter-spacing: -.045em; line-height: 1; }
.rz-trans { margin: 18px auto 32px; font-family: var(--serif); font-style: italic; font-size: 1.3rem; color: var(--ink-2); }
@media (max-width: 899px) { .rz-flip { min-height: 128px; } .rz-face { padding: 18px 18px 46px; } }