/* Folheador das edições — ver inc/folheador.php.
   Paleta e fontes do site: vermelho #C90301, NYTCheltenham nos títulos,
   pilha de sistema no resto (a página não carrega o CSS do tema). */

:root {
	--flip-vermelho: #C90301;
	--flip-fundo: #2a2a2a;
	--flip-barra: #151515;
	--flip-texto: #f4f4f4;
	--flip-suave: #a9a9a9;
	--flip-linha: rgba(255, 255, 255, .12);
	--flip-titulo: 'NYTCheltenham', Georgia, serif;
	--flip-corpo: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
	--flip-barra-h: 56px;
	--flip-rodape-h: 44px;
}

* { box-sizing: border-box; }
/* o display dos blocos abaixo venceria o atributo hidden */
.gpd-flip [hidden] { display: none !important; }
html, body.gpd-flip-body {
	margin: 0;
	height: 100%;
	background: var(--flip-fundo);
	color: var(--flip-texto);
	font: 15px/1.45 var(--flip-corpo);
	overflow: hidden;
	-webkit-tap-highlight-color: transparent;
}
.screen-reader-text {
	position: absolute; width: 1px; height: 1px; overflow: hidden;
	clip: rect(0 0 0 0); white-space: nowrap;
}
button { font: inherit; color: inherit; }
svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.gpd-flip {
	position: fixed; inset: 0;
	display: grid;
	grid-template-rows: var(--flip-barra-h) 1fr var(--flip-rodape-h);
}

/* ---------- barra superior ---------- */
.flip-barra {
	display: flex; align-items: center; gap: 16px;
	padding: 0 12px;
	background: var(--flip-barra);
	border-bottom: 3px solid var(--flip-vermelho);
	position: relative; z-index: 5;
}
.flip-voltar {
	display: inline-flex; align-items: center; gap: 4px;
	color: var(--flip-texto); text-decoration: none;
	padding: 8px 10px 8px 4px; border-radius: 4px;
	flex: 0 0 auto;
}
.flip-voltar:hover { background: rgba(255,255,255,.08); }
.flip-ident {
	flex: 1 1 auto; min-width: 0;
	display: flex; flex-direction: column; line-height: 1.2;
}
.flip-ident strong {
	font: 700 17px/1.2 var(--flip-titulo);
	white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.flip-contador { color: var(--flip-suave); font-size: 13px; }
.flip-acoes { display: flex; align-items: center; gap: 2px; flex: 0 0 auto; }
.flip-zoom { display: inline-flex; gap: 2px; }
.flip-btn {
	width: 40px; height: 40px;
	display: inline-grid; place-items: center;
	background: none; border: 0; border-radius: 4px; cursor: pointer;
}
.flip-btn:hover { background: rgba(255,255,255,.1); }
.flip-btn[aria-pressed="true"] { background: var(--flip-vermelho); }
.flip-btn:disabled { opacity: .35; cursor: default; background: none; }
.flip-ajuda {
	font: 700 17px/1 var(--flip-titulo);
	border: 1.8px solid currentColor; border-radius: 50%;
	width: 30px; height: 30px; margin-left: 6px;
}
.flip-ajuda:hover { background: var(--flip-vermelho); border-color: var(--flip-vermelho); }
:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }

/* ---------- palco ---------- */
.flip-palco {
	position: relative; overflow: hidden;
	display: flex; align-items: center; justify-content: center;
	padding: 18px 64px;
}
.flip-livro-wrap {
	width: 100%; height: 100%;
	display: flex; align-items: center; justify-content: center;
}
.flip-livro { margin: 0 auto; }
.gpd-flip[data-estado="carregando"] .flip-livro-wrap { visibility: hidden; }

.flip-pg {
	background: #fff;
	overflow: hidden;
}
.flip-pg img {
	display: block; width: 100%; height: 100%;
	object-fit: contain;
	user-select: none; -webkit-user-drag: none;
	pointer-events: none;
}
.flip-pg:not(.is-pronta)::after {
	content: ""; position: absolute; left: 50%; top: 50%;
	width: 26px; height: 26px; margin: -13px 0 0 -13px;
	border: 3px solid #ddd; border-top-color: var(--flip-vermelho);
	border-radius: 50%; animation: flip-gira .8s linear infinite;
}

.flip-seta {
	position: absolute; top: 50%; transform: translateY(-50%);
	width: 48px; height: 96px;
	display: grid; place-items: center;
	background: rgba(0,0,0,.35); border: 0; border-radius: 4px;
	color: #fff; cursor: pointer; z-index: 3;
	transition: background .15s, opacity .15s;
}
.flip-seta svg { width: 30px; height: 30px; }
.flip-seta:hover { background: var(--flip-vermelho); }
.flip-seta:disabled { opacity: 0; pointer-events: none; }
.flip-seta-ant { left: 8px; }
.flip-seta-prox { right: 8px; }

/* carregamento e erro */
.flip-carregando, .flip-erro {
	position: absolute; inset: 0;
	display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 18px;
	text-align: center; padding: 24px;
}
.flip-carregando img {
	max-height: 60%; max-width: 70%;
	box-shadow: 0 10px 40px rgba(0,0,0,.5);
	opacity: .55;
}
.flip-carregando p { margin: 0; display: flex; align-items: center; gap: 10px; color: var(--flip-suave); }
.gpd-flip:not([data-estado="carregando"]) .flip-carregando { display: none; }
.flip-erro a { color: #fff; }
.flip-spinner {
	width: 18px; height: 18px; border-radius: 50%;
	border: 2px solid var(--flip-linha); border-top-color: var(--flip-vermelho);
	animation: flip-gira .8s linear infinite;
}
@keyframes flip-gira { to { transform: rotate(360deg); } }

/* ---------- ampliação (lupa) ---------- */
.flip-lupa {
	position: absolute; inset: 0; z-index: 4;
	background: var(--flip-fundo);
	overflow: auto;
	cursor: grab;
	overscroll-behavior: contain;
	touch-action: pan-x pan-y;
}
.flip-lupa.is-arrastando { cursor: grabbing; }
.flip-lupa[hidden] { display: none; }
.flip-lupa-conteudo {
	display: flex; gap: 0;
	width: max-content;
	margin: 24px auto;
	padding: 0 24px;
}
.flip-lupa-conteudo img, .flip-lupa-conteudo canvas {
	display: block; background: #fff;
	box-shadow: 0 6px 30px rgba(0,0,0,.45);
	user-select: none; -webkit-user-drag: none;
}

/* ---------- rodapé com régua ---------- */
.flip-rodape {
	display: flex; align-items: center; justify-content: center;
	padding: 0 24px;
	background: var(--flip-barra);
	border-top: 1px solid var(--flip-linha);
}
.flip-regua { width: min(720px, 100%); display: block; }
.flip-regua input {
	width: 100%; margin: 0;
	accent-color: var(--flip-vermelho);
	cursor: pointer;
}

/* ---------- miniaturas ---------- */
.flip-miniaturas {
	position: fixed; left: 0; right: 0;
	bottom: var(--flip-rodape-h);
	height: 190px; z-index: 6;
	background: rgba(15,15,15,.97);
	border-top: 3px solid var(--flip-vermelho);
	overflow-x: auto; overflow-y: hidden;
	overscroll-behavior: contain;
}
.flip-miniaturas[hidden] { display: none; }
.flip-miniaturas ol {
	list-style: none; margin: 0; padding: 16px 16px 10px;
	display: flex; gap: 14px; height: 100%;
}
.flip-miniaturas li { flex: 0 0 auto; height: 100%; }
.flip-miniaturas button {
	height: 100%; padding: 0; border: 0; background: none; cursor: pointer;
	display: flex; flex-direction: column; align-items: center; gap: 6px;
}
.flip-mini-img {
	height: calc(100% - 22px); aspect-ratio: var(--flip-proporcao, .75);
	background: #3a3a3a; display: block;
	outline: 3px solid transparent; outline-offset: 0;
}
.flip-mini-img img { width: 100%; height: 100%; object-fit: contain; display: block; background: #fff; }
.flip-miniaturas button span:last-child { font-size: 12px; color: var(--flip-suave); }
.flip-miniaturas li.is-atual .flip-mini-img { outline-color: var(--flip-vermelho); }
.flip-miniaturas li.is-atual span:last-child { color: #fff; font-weight: 600; }

/* ---------- guia de primeira leitura ---------- */
.flip-guia { position: fixed; inset: 0; z-index: 20; }
.flip-guia[hidden] { display: none; }
.flip-guia-foco {
	position: absolute;
	border-radius: 8px;
	box-shadow: 0 0 0 9999px rgba(0,0,0,.72);
	outline: 2px solid #fff;
	transition: all .3s ease;
	pointer-events: none;
}
.flip-guia.is-sem-foco .flip-guia-foco {
	left: 50% !important; top: 50% !important; width: 0 !important; height: 0 !important;
	outline: 0;
}
.flip-guia-balao {
	position: absolute;
	width: min(340px, calc(100vw - 32px));
	background: #fff; color: #1a1a1a;
	border-top: 4px solid var(--flip-vermelho);
	border-radius: 6px;
	padding: 18px 20px 16px;
	box-shadow: 0 14px 40px rgba(0,0,0,.4);
	transition: left .3s ease, top .3s ease;
}
.flip-guia-passo { margin: 0 0 4px; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--flip-vermelho); font-weight: 700; }
.flip-guia-balao h2 { margin: 0 0 6px; font: 700 21px/1.2 var(--flip-titulo); }
.flip-guia-texto { margin: 0 0 16px; color: #444; }
.flip-guia-botoes { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.flip-guia-pular { background: none; border: 0; padding: 8px 0; color: #666; cursor: pointer; text-decoration: underline; }
.flip-guia-prox {
	background: var(--flip-vermelho); color: #fff; border: 0; border-radius: 4px;
	padding: 9px 18px; font-weight: 600; cursor: pointer;
}
.flip-guia-prox:hover { background: #a10201; }

/* ---------- celular ---------- */
@media (max-width: 760px) {
	:root { --flip-barra-h: 52px; }
	.flip-barra { gap: 6px; padding: 0 4px; }
	.flip-voltar span { display: none; }
	.flip-ident strong { font-size: 15px; }
	.flip-so-largo { display: none; }
	.flip-btn { width: 36px; }
	.flip-palco { padding: 10px 6px; }
	.flip-seta { width: 34px; height: 64px; background: rgba(0,0,0,.25); }
	.flip-seta-ant { left: 2px; } .flip-seta-prox { right: 2px; }
	.flip-miniaturas { height: 150px; }
}

@media (prefers-reduced-motion: reduce) {
	.flip-guia-foco, .flip-guia-balao { transition: none; }
}

/* capa sozinha centralizada (ver centralizar() no .js) */
.flip-livro { transition: transform .45s ease; }
@media (prefers-reduced-motion: reduce) { .flip-livro { transition: none; } }