/* Спільна основа варіантів блогу: токени головної «Одна нитка», шапка, фільтри, кнопки, підвал. */
:root {
  --bg: #EDE7DC; --paper: #F6F1E8; --ink: #141210; --muted: #6B645A; --line: rgba(20, 18, 16, .14);
  --accent: #F0560F; --accent-ink: #FFFFFF;
  --r-ideas: #D7262E; --r-materials: #2F7DF6; --r-guides: #E0B000; --r-tech: #13A89E; --r-prices: #F0560F;
  --gutter: clamp(1rem, 3vw, 2.75rem); --display: Geologica, system-ui, sans-serif; --mono: "JetBrains Mono", ui-monospace, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --bg: #13110E; --paper: #1D1A16; --ink: #F1EBE1; --muted: #A69C8E; --line: rgba(241, 235, 225, .14); --accent: #FF6A24; --accent-ink: #1A0A02; --r-guides: #F2C200; color-scheme: dark; }
}
:root[data-theme="dark"] { --bg: #13110E; --paper: #1D1A16; --ink: #F1EBE1; --muted: #A69C8E; --line: rgba(241, 235, 225, .14); --accent: #FF6A24; --accent-ink: #1A0A02; --r-guides: #F2C200; color-scheme: dark; }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: var(--bg); }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 1.0625rem/1.55 var(--display); overflow-x: clip; }
a { color: inherit; }
button, input { font: inherit; color: inherit; }
img { display: block; max-width: 100%; }
[hidden] { display: none !important; }
:focus-visible { outline: 0.1875rem solid var(--accent); outline-offset: 0.1875rem; }
.wrap { width: min(85rem, 100% - var(--gutter) * 2); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

.top { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(0.75rem); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 1.625rem; height: 4.5rem; }
.logo { display: inline-flex; align-items: center; gap: 0.25rem; font: 900 1.375rem/1 var(--display); letter-spacing: -.04em; text-decoration: none; }
.logo i { width: 0.625rem; height: 0.625rem; border-radius: 50%; background: var(--accent); }
.nav { display: flex; gap: 1.5rem; margin-left: auto; font-size: 0.9375rem; }
.nav a { text-decoration: none; }
.nav a:hover { color: var(--accent); }
.nav a[aria-current="page"] { color: var(--accent); }
.icon-btn { width: 2.75rem; height: 2.75rem; flex: none; display: grid; place-items: center; border: 1.5px solid var(--line); border-radius: 50%; background: transparent; cursor: pointer; }
.icon-btn svg { width: 1.25rem; height: 1.25rem; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.625rem; min-height: 3rem; padding: 0 1.375rem; border: 0; border-radius: 62.4375rem; background: var(--ink); color: var(--bg); font-weight: 600; font-size: 0.9375rem; text-decoration: none; cursor: pointer; }
.btn--accent { background: var(--accent); color: var(--accent-ink); }
.btn--ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--ink); }
.top .btn { min-height: 2.75rem; padding: 0 1.125rem; }

/* Рубрики й пошук */
.filters { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0; padding: 0; list-style: none; }
.filters a, .filters button { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.5625rem 0.9375rem; border: 1.5px solid var(--line); border-radius: 62.4375rem; background: transparent; cursor: pointer; font-size: 0.9375rem; }
.filters a i, .filters button i { width: 0.625rem; height: 0.625rem; border-radius: 50%; background: var(--c, var(--ink)); }
.filters a small, .filters button small { color: var(--muted); font-size: 0.8125rem; }
.filters a { text-decoration: none; }
.filters a:hover { border-color: var(--ink); }
.filters a[aria-current="true"], .filters button[aria-pressed="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.filters a[aria-current="true"] small, .filters button[aria-pressed="true"] small { color: inherit; opacity: .7; }
.crumbs { display: flex; flex-wrap: wrap; gap: 0.5rem; font-size: 0.875rem; color: var(--muted); }
.crumbs a { text-decoration: none; }
.crumbs a:hover { color: var(--accent); }
.search { position: relative; }
.search input { width: 100%; padding: 0.8125rem 1rem 0.8125rem 2.75rem; border: 1.5px solid var(--line); border-radius: 62.4375rem; background: var(--paper); }
.search input:focus { border-color: var(--accent); outline: none; }
.search svg { position: absolute; left: 1rem; top: 50%; translate: 0 -50%; width: 1.125rem; height: 1.125rem; color: var(--muted); }
.empty { padding: 2.5rem 0; color: var(--muted); }
.more { display: flex; justify-content: center; padding: 2.125rem 0 0.625rem; }
.chip { display: inline-flex; align-items: center; gap: 0.375rem; font-size: 0.8125rem; font-weight: 600; white-space: nowrap; }
.chip i { width: 0.5rem; height: 0.5rem; border-radius: 50%; background: var(--c); }

/* Заклик і підвал */
.cta { margin: clamp(3.75rem, 9vw, 7.5rem) 0 0; padding: clamp(1.75rem, 4vw, 3.25rem); border-radius: 1.75rem; background: var(--ink); color: var(--bg); display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1.375rem; }
.cta h2 { margin: 0; max-width: 18em; font: 900 clamp(1.625rem, 3.2vw, 2.75rem)/1.02 var(--display); letter-spacing: -.035em; text-wrap: balance; }
.cta .btn--ghost { color: var(--bg); box-shadow: inset 0 0 0 1.5px var(--bg); }
.foot { padding: 2.5rem 0; color: var(--muted); font-size: 0.875rem; }
.foot .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.625rem; }
.foot a { text-decoration: none; }

/* Повний підвал (блог і стаття) */
.footer { margin-top: clamp(3.75rem, 9vw, 6.875rem); padding: 3.125rem 0 2.125rem; border-top: 1px solid var(--line); font-size: 0.9375rem; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 1.75rem; }
.footer h2 { margin: 0 0 0.75rem; font-size: 0.8125rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.footer ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 0.4375rem; }
.footer a { text-decoration: none; }
.footer a:hover { color: var(--accent); }
.footer p { margin: 0.75rem 0 0; color: var(--muted); max-width: 26em; }
.footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.625rem; margin-top: 2.5rem; padding-top: 1.25rem; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.875rem; }
@media (max-width: 900px) { .footer__grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer__grid { grid-template-columns: 1fr; } }

@media (max-width: 1000px) { .nav { display: none; } .top .btn { margin-left: auto; } }
@media (max-width: 520px) { .top .btn { display: none; } .top .icon-btn { margin-left: auto; } }