/*
Theme Name: Edu Solution
Theme URI: https://edu-solution.com.ua
Description: Тема в духе швейцарской типографики (International Style) для блога о психологии отношений: строгая сетка, нумерованный список материалов, холодная палитра с красным акцентом. Чистый семантический SEO-HTML, один H1 на страницу.
Author: Claude Dev
Version: 2.0.0
Requires at least: 6.0
Tested up to: 7.0
Requires PHP: 7.4
License: GPL-2.0-or-later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: edu-solution
*/

/* ============================================================
   Tokens — Swiss / International: cool gray + black + red
   ============================================================ */
:root {
  --bg:          #eceef1;
  --surface:     #ffffff;
  --ink:         #15171c;
  --ink-soft:    #3f434c;
  --muted:       #7b818c;
  --line:        #d4d8de;
  --line-strong: #b4bac3;
  --red:         #e1322a;
  --red-dk:      #b8241d;

  --font: "Archivo", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;

  --text-base: clamp(1rem, 0.96rem + 0.2vw, 1.06rem);
  --text-hero: clamp(2.6rem, 1.2rem + 6.5vw, 7rem);
  --text-h2:   clamp(1.5rem, 1.1rem + 1.6vw, 2.1rem);
  --text-row:  clamp(1.35rem, 1rem + 1.6vw, 2.3rem);
  --text-feat: clamp(1.9rem, 1.2rem + 3.2vw, 3.6rem);

  --space-section: clamp(3rem, 2.2rem + 3.5vw, 5.5rem);
  --container:  1240px;
  --container-narrow: 720px;

  --duration: 220ms;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--font); font-size: var(--text-base);
  line-height: 1.65; font-weight: 400;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--ink); text-decoration: none; transition: color var(--duration) var(--ease); }
a:hover { color: var(--red); }

h1, h2, h3, h4 { font-family: var(--font); font-weight: 800; line-height: 1.02; letter-spacing: -0.02em; margin: 0 0 0.5em; color: var(--ink); }
p { margin: 0 0 1.2em; }

:focus-visible { outline: 2px solid var(--red); outline-offset: 3px; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: clamp(1.1rem, 0.5rem + 3vw, 2.8rem); }
.container--narrow { max-width: var(--container-narrow); }

.skip-link { position: absolute; left: -9999px; top: 0; background: var(--red); color: #fff; padding: 0.75rem 1.25rem; z-index: 1000; font-weight: 700; }
.skip-link:focus { left: 0; }
.screen-reader-text { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(1px,1px,1px,1px); white-space: nowrap; }

.eyebrow { font-size: 0.74rem; font-weight: 700; letter-spacing: 0.22em; text-transform: uppercase; color: var(--red); }

/* ============================================================
   Header
   ============================================================ */
.site-header { background: var(--bg); border-bottom: 2px solid var(--ink); position: sticky; top: 0; z-index: 100; }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; min-height: 76px; }
.site-brand { font-family: var(--font); font-weight: 800; font-size: 1.5rem; letter-spacing: -0.03em; text-transform: uppercase; color: var(--ink); display: inline-flex; align-items: center; gap: 0.5rem; }
.site-brand:hover { color: var(--red); }
.site-brand__sq { width: 14px; height: 14px; background: var(--red); }
.site-brand img { max-height: 44px; width: auto; }
.main-nav ul { list-style: none; display: flex; gap: clamp(0.9rem, 0.4rem + 1.5vw, 2.2rem); margin: 0; padding: 0; }
.main-nav a { color: var(--ink); font-size: 0.82rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.main-nav a:hover, .main-nav .current-menu-item > a { color: var(--red); }
.nav-toggle { display: none; background: none; border: 2px solid var(--ink); color: var(--ink); width: 46px; height: 42px; cursor: pointer; align-items: center; justify-content: center; }
.nav-toggle svg { width: 22px; height: 22px; }

/* ============================================================
   Hero
   ============================================================ */
.hero { padding-block: clamp(2.5rem, 4vw, 5rem) 0; }
.hero__grid { display: grid; grid-template-columns: 1.7fr 1fr; gap: clamp(1.5rem, 3vw, 3.5rem); align-items: end; padding-bottom: clamp(2rem, 3vw, 3.2rem); border-bottom: 2px solid var(--ink); }
.hero h1 { font-size: var(--text-hero); margin: 1rem 0 0; text-transform: uppercase; }
.hero__aside { padding-bottom: 0.4rem; }
.hero__lede { color: var(--ink-soft); font-size: clamp(1.02rem, 0.96rem + 0.4vw, 1.2rem); margin: 0; }
.hero__count { display: block; margin-top: 1.2rem; font-weight: 700; font-size: 0.8rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }

/* ============================================================
   Section head
   ============================================================ */
.section { padding-block: var(--space-section); }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 1.2rem; flex-wrap: wrap; margin-bottom: clamp(1.2rem, 0.8rem + 1.5vw, 2rem); }
.section-head h2, .section-head__title { font-size: var(--text-h2); margin: 0; text-transform: uppercase; }
.section-head__title { font-family: var(--font); font-weight: 800; line-height: 1.02; letter-spacing: -0.02em; color: var(--ink); }

/* ============================================================
   Numbered post list (the signature layout)
   ============================================================ */
.post-list { counter-reset: idx; border-top: 1px solid var(--line-strong); }
.post-row {
  display: grid;
  grid-template-columns: auto 150px 1fr auto;
  align-items: center;
  gap: clamp(1rem, 0.6rem + 1.5vw, 2.4rem);
  padding-block: clamp(1.4rem, 1rem + 1.2vw, 2.2rem);
  border-bottom: 1px solid var(--line-strong);
  position: relative;
}
.post-list--numbered .post-row::before {
  counter-increment: idx;
  content: counter(idx, decimal-leading-zero);
  font-weight: 800; font-size: clamp(1rem, 0.8rem + 0.8vw, 1.4rem);
  color: var(--muted); font-variant-numeric: tabular-nums;
  transition: color var(--duration) var(--ease);
}
.post-list:not(.post-list--numbered) .post-row { grid-template-columns: 150px 1fr auto; }
.post-row:hover::before { color: var(--red); }
.post-row__media { width: 150px; height: 100px; overflow: hidden; background: var(--line); }
.post-row__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 500ms var(--ease); }
.post-row:hover .post-row__media img { transform: scale(1.06); }
.post-row__media-fallback { display: block; width: 100%; height: 100%; background: repeating-linear-gradient(45deg, #d7dbe0, #d7dbe0 8px, #cdd2d9 8px, #cdd2d9 16px); }
.post-row__body { min-width: 0; }
.post-row__cat { display: inline-block; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--red); margin-bottom: 0.4rem; }
.post-row__title { font-size: var(--text-row); line-height: 1.05; margin: 0 0 0.4rem; letter-spacing: -0.02em; }
.post-row__title a { color: var(--ink); }
.post-row__title a:hover { color: var(--red); }
.post-row__excerpt { color: var(--ink-soft); font-size: 0.95rem; margin: 0.3rem 0 0; max-width: 60ch; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.post-row__meta { font-size: 0.8rem; color: var(--muted); margin-top: 0.5rem; letter-spacing: 0.02em; }
.post-row__arrow { font-size: 1.6rem; color: var(--ink); transition: transform var(--duration) var(--ease), color var(--duration) var(--ease); }
.post-row:hover .post-row__arrow { color: var(--red); transform: translateX(6px); }

/* feature row (first item) */
.post-row--feature { grid-template-columns: auto 1fr; align-items: stretch; gap: clamp(1.5rem, 1rem + 2vw, 3rem); }
.post-list:not(.post-list--numbered) .post-row--feature { grid-template-columns: 1fr; }
.post-row--feature .post-row__media { grid-column: 2; width: 100%; height: clamp(260px, 34vw, 440px); }
.post-row--feature .post-row__body { grid-column: 2; }
.post-row--feature .post-row__title { font-size: var(--text-feat); }
.post-row--feature .post-row__excerpt { font-size: 1.1rem; -webkit-line-clamp: 3; }
.post-row--feature .post-row__media { order: -1; margin-bottom: 1.4rem; }

/* ============================================================
   Single
   ============================================================ */
.breadcrumbs { font-size: 0.8rem; color: var(--muted); padding-block: 1.2rem; text-transform: uppercase; letter-spacing: 0.06em; }
.breadcrumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0; padding: 0; align-items: center; }
.breadcrumbs li { display: inline-flex; align-items: center; gap: 0.5rem; }
.breadcrumbs li:not(:last-child)::after { content: "→"; color: var(--line-strong); }
.breadcrumbs a { color: var(--ink-soft); }

.entry-header { padding-block: clamp(0.8rem, 2vw, 1.8rem) clamp(1.2rem, 2vw, 2rem); border-bottom: 2px solid var(--ink); margin-bottom: clamp(1.8rem, 3vw, 2.8rem); }
.entry-title { font-size: clamp(2.1rem, 1.3rem + 3.4vw, 4.2rem); margin: 0.7rem 0 1rem; text-transform: uppercase; letter-spacing: -0.025em; }
.entry-meta { display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center; color: var(--muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; }
.entry-meta .dot { width: 4px; height: 4px; background: var(--red); }

.entry-featured { margin: 0 0 clamp(1.8rem, 3vw, 2.8rem); overflow: hidden; }
.entry-featured img { width: 100%; max-height: 580px; object-fit: cover; }

.entry-content { font-size: clamp(1.06rem, 1rem + 0.4vw, 1.2rem); line-height: 1.85; color: var(--ink-soft); }
.entry-content > * { margin-bottom: 1.4em; }
.entry-content h2 { font-size: clamp(1.5rem, 1.1rem + 1.6vw, 2.1rem); margin: 1.8em 0 0.5em; color: var(--ink); text-transform: uppercase; letter-spacing: -0.02em; }
.entry-content h3 { font-size: 1.4rem; margin: 1.5em 0 0.4em; color: var(--ink); }
.entry-content a { color: var(--red); text-decoration: underline; text-underline-offset: 3px; }
.entry-content img { } /* sharp corners — Swiss */
.entry-content blockquote { border-left: 4px solid var(--red); margin: 1.6em 0; padding: 0.3em 0 0.3em 1.5rem; font-size: 1.45rem; font-weight: 600; color: var(--ink); }
.entry-content ul, .entry-content ol { padding-left: 1.4rem; }
.entry-content li { margin-bottom: 0.4em; }
.entry-content li::marker { color: var(--red); }
.entry-content figcaption { color: var(--muted); font-size: 0.86rem; margin-top: 0.5rem; text-transform: uppercase; letter-spacing: 0.04em; }

.entry-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 2.5rem; padding-top: 1.8rem; border-top: 2px solid var(--ink); }
.entry-tags a { font-size: 0.78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink); border: 1px solid var(--line-strong); padding: 0.4rem 0.85rem; }
.entry-tags a:hover { background: var(--red); color: #fff; border-color: var(--red); }

.related { margin-top: var(--space-section); padding-top: clamp(1.8rem, 3vw, 2.6rem); border-top: 2px solid var(--ink); }

/* ============================================================
   Archive / page hero
   ============================================================ */
.page-hero { padding-block: clamp(2.6rem, 4vw, 4.5rem) clamp(1.5rem, 2.5vw, 2.2rem); border-bottom: 2px solid var(--ink); }
.page-hero h1 { font-size: clamp(2.2rem, 1.4rem + 3vw, 4.4rem); margin: 0.5rem 0 0.5rem; text-transform: uppercase; }
.page-hero p { color: var(--ink-soft); max-width: 58ch; margin: 0; }

/* ============================================================
   Buttons + pagination
   ============================================================ */
.btn { display: inline-flex; align-items: center; gap: 0.55rem; padding: 0.9rem 1.8rem; font-weight: 700; font-size: 0.85rem; letter-spacing: 0.08em; text-transform: uppercase; }
.btn--primary { background: var(--red); color: #fff; }
.btn--primary:hover { background: var(--ink); color: #fff; }

.pagination { margin-top: clamp(2.5rem, 4vw, 4rem); }
.pagination .nav-links { display: flex; flex-wrap: wrap; gap: 0.4rem; justify-content: center; }
.pagination .page-numbers { min-width: 46px; height: 46px; display: inline-flex; align-items: center; justify-content: center; padding-inline: 0.7rem; border: 1px solid var(--line-strong); color: var(--ink); font-weight: 700; }
.pagination .page-numbers:hover { border-color: var(--red); color: var(--red); }
.pagination .page-numbers.current { background: var(--red); color: #fff; border-color: var(--red); }

/* ============================================================
   Footer
   ============================================================ */
.site-footer { margin-top: var(--space-section); border-top: 2px solid var(--ink); background: var(--ink); color: #c7ccd4; padding-block: clamp(3rem, 5vw, 4.5rem) 2rem; }
.site-footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 2.5rem; margin-bottom: 3rem; }
.site-footer__title { font-family: var(--font); font-size: 0.74rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; color: #7b818c; margin: 0 0 1.1rem; }
.site-footer__about .site-footer__brand { font-family: var(--font); font-weight: 800; font-size: 1.7rem; text-transform: uppercase; letter-spacing: -0.02em; color: #fff; display: block; margin-bottom: 0.6rem; }
.site-footer__about p { color: #9aa1ab; max-width: 38ch; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.6rem; }
.site-footer ul a { color: #9aa1ab; font-size: 0.95rem; }
.site-footer ul a:hover { color: var(--red); }
.site-footer__bottom { border-top: 1px solid rgba(255,255,255,0.14); padding-top: 1.6rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; font-size: 0.8rem; color: #7b818c; text-transform: uppercase; letter-spacing: 0.05em; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 880px) {
  .nav-toggle { display: inline-flex; }
  .main-nav { position: absolute; top: 100%; left: 0; right: 0; background: var(--bg); border-bottom: 2px solid var(--ink); padding: 1rem clamp(1.1rem,0.5rem+3vw,2.8rem) 1.5rem; display: none; }
  .main-nav.is-open { display: block; }
  .main-nav ul { flex-direction: column; gap: 0.2rem; }
  .main-nav a { display: block; padding: 0.6rem 0; }
  .hero__grid { grid-template-columns: 1fr; align-items: start; }
  .site-footer__grid { grid-template-columns: 1fr; gap: 2rem; }
}
@media (max-width: 680px) {
  .post-row { grid-template-columns: auto 1fr; gap: 0.9rem 1.1rem; }
  .post-list:not(.post-list--numbered) .post-row { grid-template-columns: 1fr; }
  .post-row__media { display: none; }
  .post-row__arrow { display: none; }
  .post-row--feature .post-row__media { display: block; grid-column: 1 / -1; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}