/* --------------------------------------------------------------------------
   «Блог» (page-blog.php). Визуальный язык — как у /cases/, /docs/:
   кремовый hero, моно-подписи, акцент #A30C33, navy-обложки и CTA.
   Префикс .rbl-*. JS — assets/js/robin-blog.js.
   -------------------------------------------------------------------------- */
:root {
	--rbl-parchment: #f6f3f1;
	--rbl-ash: #cecac8;
	--rbl-line: #e7e3e0;
	--rbl-ink: #242424;
	--rbl-graphite: #4e4d4d;
	--rbl-smoke: #797776;
	--rbl-accent: #a30c33;
	--rbl-result: #c52229;
	--rbl-navy: #0e1526;
	--rbl-mono-f: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

/* ==========================================================================
   HERO
   ========================================================================== */
.rbl-hero { padding: 32px 48px 44px; border-radius: 24px; background: var(--rbl-parchment); color: var(--rbl-ink); }
.rbl-hero-grid { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 6fr); gap: 56px; align-items: center; margin-top: 28px; }
.rbl-hero-title { margin: 0; font-family: var(--robin-font-head); font-weight: 500; font-size: 58px; line-height: 1.02; letter-spacing: -0.035em; }
.rbl-hero-title em { display: block; font-style: normal; color: var(--rbl-accent); }
.rbl-hero-sub { margin: 22px 0 0; max-width: 36rem; padding-left: 20px; border-left: 2px solid var(--rbl-accent); font-size: 17px; line-height: 1.55; color: var(--rbl-graphite); }
.rbl-hero-sub b { font-weight: 500; color: var(--rbl-ink); }

.rbl-index { display: flex; flex-direction: column; gap: 6px; margin: 0; padding: 0; list-style: none; }
.rbl-index a {
	display: grid;
	grid-template-columns: 36px minmax(0, 15rem) minmax(0, 1fr) 28px;
	gap: 12px;
	align-items: center;
	padding: 8px 12px 8px 8px;
	border-radius: 14px;
	color: var(--rbl-ink);
	transition: background .2s ease;
}
.rbl-index a:hover { background: #fff; }
.rbl-index-ico {
	display: inline-flex; align-items: center; justify-content: center;
	width: 36px; height: 36px;
	border-radius: 10px;
	background: #fff;
	color: var(--rbl-accent);
}
.rbl-index-ico svg { width: 18px; height: 18px; }
.rbl-index-label { font-size: 14px; line-height: 1.3; }
.rbl-index-bar { height: 10px; border-radius: 5px; background: rgba(255, 255, 255, .8); overflow: hidden; }
.rbl-index-bar span {
	display: block; height: 100%;
	width: calc(var(--w) * 100%);
	border-radius: 5px;
	background: var(--rbl-ink);
	transform-origin: left;
	transition: background .2s ease;
}
.rbl-index a:hover .rbl-index-bar span { background: linear-gradient(90deg, var(--rbl-result), var(--rbl-accent)); }
.rbl-index b { font-family: var(--robin-font-head); font-weight: 400; font-size: 20px; text-align: right; font-variant-numeric: tabular-nums; }
.rbl-reveal-ready.rbl-index .rbl-index-bar span { transform: scaleX(0); }
.rbl-reveal-ready.rbl-index.is-inview .rbl-index-bar span { transform: scaleX(1); transition: transform .9s cubic-bezier(.2, .8, .2, 1) calc(var(--i) * 90ms + .1s), background .2s ease; }

/* ==========================================================================
   Липкая навигация по темам
   ========================================================================== */
.rbl-nav-wrap { position: sticky; top: 44px; z-index: 20; display: flex; justify-content: center; padding: 28px 16px 0; pointer-events: none; }
.rbl-nav {
	display: flex;
	gap: 2px;
	max-width: 100%;
	overflow-x: auto;
	padding: 5px;
	border: 1px solid var(--rbl-line);
	border-radius: 999px;
	background: rgba(255, 255, 255, .88);
	backdrop-filter: blur(12px);
	box-shadow: 0 16px 36px -24px rgba(36, 36, 36, .35);
	scrollbar-width: none;
	pointer-events: auto;
}
.rbl-nav::-webkit-scrollbar { display: none; }
.rbl-nav a {
	flex: none;
	padding: 8px 14px;
	border-radius: 999px;
	font-size: 13px;
	color: var(--rbl-graphite);
	white-space: nowrap;
	transition: background .25s ease, color .25s ease;
}
.rbl-nav a:hover { color: var(--rbl-ink); background: var(--rbl-parchment); }
.rbl-nav a.is-active { background: var(--rbl-navy); color: #fff; }

/* ==========================================================================
   ТЕМЫ
   ========================================================================== */
.rbl-topic { padding-top: 56px; scroll-margin-top: 120px; }
.rbl-topic-head {
	display: grid;
	grid-template-columns: auto minmax(0, 1fr) auto;
	gap: 24px;
	align-items: end;
	padding-bottom: 20px;
	border-bottom: 1px solid var(--rbl-line);
}
.rbl-topic-num {
	font-family: var(--robin-font-head);
	font-weight: 300;
	font-size: 80px;
	line-height: .8;
	letter-spacing: -0.06em;
	color: transparent;
	-webkit-text-stroke: 1.2px var(--rbl-ash);
	transition: color .4s ease, -webkit-text-stroke-color .4s ease;
}
.rbl-topic.is-active .rbl-topic-num { color: var(--rbl-accent); -webkit-text-stroke-color: var(--rbl-accent); }
.rbl-topic-title { margin: 0; font-family: var(--robin-font-head); font-weight: 400; font-size: 32px; line-height: 1.1; letter-spacing: -0.03em; color: var(--rbl-ink); }
.rbl-topic-lead { margin: 6px 0 0; font-size: 15px; color: var(--rbl-smoke); }
.rbl-topic-count {
	padding: 6px 12px;
	border-radius: 999px;
	background: var(--rbl-parchment);
	font-family: var(--rbl-mono-f);
	font-size: 12px;
	color: var(--rbl-graphite);
}
.rbl-topic-count::after { content: " статей"; }

.rbl-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 24px; }
.rbl-card {
	display: flex;
	flex-direction: column;
	overflow: hidden;
	border: 1px solid var(--rbl-line);
	border-radius: 20px;
	background: #fff;
	transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.rbl-card:hover { transform: translateY(-4px); border-color: var(--rbl-ash); box-shadow: 0 24px 48px -30px rgba(36, 36, 36, .4); }
.rbl-cover { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--rbl-parchment); }
.rbl-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s cubic-bezier(.2, .8, .2, 1); }
.rbl-card:hover .rbl-cover img { transform: scale(1.05); }
.rbl-cover-type {
	position: absolute; inset: 0;
	display: flex; flex-direction: column; justify-content: space-between;
	padding: 18px 20px;
	background: linear-gradient(160deg, #141d33 0%, #0b1120 60%, #0e1526 100%);
	overflow: hidden;
}
.rbl-cover-type::after {
	content: "";
	position: absolute; right: -70px; bottom: -90px;
	width: 220px; aspect-ratio: 1; border-radius: 50%;
	background: radial-gradient(closest-side, rgba(197, 34, 41, .45), rgba(197, 34, 41, 0));
	transition: transform .6s ease;
}
.rbl-card:hover .rbl-cover-type::after { transform: translate(-24px, -18px) scale(1.15); }
.rbl-cover-ico {
	position: relative; z-index: 1;
	display: inline-flex; align-items: center; justify-content: center;
	width: 44px; height: 44px;
	border-radius: 14px;
	background: rgba(255, 255, 255, .08);
	color: #ff6b70;
}
.rbl-cover-ico svg { width: 22px; height: 22px; }
.rbl-cover-topic { position: relative; z-index: 1; font-family: var(--rbl-mono-f); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; color: rgba(255, 255, 255, .55); }
.rbl-body { display: flex; flex: 1; flex-direction: column; padding: 18px 20px 20px; }
.rbl-title { flex: 1; margin: 0; font-size: 16px; font-weight: 500; line-height: 1.4; letter-spacing: -0.015em; color: var(--rbl-ink); transition: color .2s ease; }
.rbl-card:hover .rbl-title { color: var(--rbl-accent); }
.rbl-read { display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; font-size: 13px; font-weight: 500; color: var(--rbl-accent); }
.rbl-read svg { transition: transform .25s ease; }
.rbl-card:hover .rbl-read svg { transform: translate(2px, -2px); }

.rbl-reveal-ready.rbl-grid > * { opacity: 0; transform: translateY(16px); }
.rbl-reveal-ready.rbl-grid.is-inview > * {
	opacity: 1; transform: none;
	transition: opacity .55s ease, transform .55s cubic-bezier(.2, .8, .2, 1), box-shadow .35s ease, border-color .35s ease;
	transition-delay: calc(var(--i, 0) * 70ms);
}
.rbl-reveal-ready.rbl-grid.is-inview > *:hover { transition-delay: 0s; transform: translateY(-4px); }

/* ==========================================================================
   CTA
   ========================================================================== */
.rbl-cta {
	position: relative;
	overflow: hidden;
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	align-items: center;
	gap: 24px;
	margin-top: 24px;
	padding: 40px 44px;
	border-radius: 28px;
	background: linear-gradient(160deg, #141d33 0%, #0b1120 60%, #0e1526 100%);
	color: #fff;
}
.rbl-cta::after {
	content: ""; position: absolute; right: -100px; top: -160px;
	width: 380px; aspect-ratio: 1; border-radius: 50%;
	background: radial-gradient(closest-side, rgba(197, 34, 41, .3), rgba(197, 34, 41, 0));
	pointer-events: none;
}
.rbl-cta-text { position: relative; z-index: 1; }
.rbl-cta > a { position: relative; z-index: 1; }
.rbl-cta h2 { margin: 0; font-family: var(--robin-font-head); font-weight: 400; font-size: 36px; letter-spacing: -0.03em; }
.rbl-cta h2 em { font-style: normal; color: #ff6b70; }
.rbl-cta p { margin: 10px 0 0; max-width: 38rem; font-size: 15px; line-height: 1.6; color: rgba(255, 255, 255, .7); }

/* ==========================================================================
   Адаптив
   ========================================================================== */
@media (max-width: 1023px) {
	.rbl-hero { padding: 24px 28px 32px; }
	.rbl-hero-grid { grid-template-columns: 1fr; gap: 32px; }
	.rbl-hero-title { font-size: 44px; }
	.rbl-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.rbl-nav-wrap { top: 36px; }
}
@media (max-width: 639px) {
	.rbl-hero { padding: 20px 18px 24px; border-radius: 20px; }
	.rbl-hero-title { font-size: 34px; }
	.rbl-index a { grid-template-columns: 32px minmax(0, 1fr) 24px; }
	.rbl-index-bar { grid-column: 2 / 3; grid-row: 2; }
	.rbl-index b { grid-row: 1 / 3; grid-column: 3; }
	.rbl-index-ico { grid-row: 1 / 3; }
	.rbl-nav-wrap { justify-content: flex-start; }
	.rbl-grid { grid-template-columns: 1fr; }
	.rbl-topic-head { grid-template-columns: auto minmax(0, 1fr); gap: 14px; align-items: center; }
	.rbl-topic-count { display: none; }
	.rbl-topic-num { font-size: 52px; }
	.rbl-topic-title { font-size: 24px; }
	.rbl-cta { padding: 28px 22px; }
	.rbl-cta h2 { font-size: 28px; }
}
@media (prefers-reduced-motion: reduce) {
	.rbl-card, .rbl-cover img { transition: none; }
}