/*
Theme Name:  Upper Directions
Theme URI:   https://upperdirections.com
Author:      Upper Directions
Description: Strategy & Innovation House — custom theme for Upper Directions. Dark/red/white brand. Thinking blog included.
Version:     1.0
License:     Private
Text Domain: upperdirections
*/

/* ─────────────────────────────────────────────────────
   UPPER DIRECTIONS — WordPress Theme Stylesheet
   Fonts: Playfair Display (headings) + DM Sans (body)
   Colors: Dark #0D1B2A · Red #C0392B · White #FFFFFF
───────────────────────────────────────────────────── */

:root {
  --dark:    #0D1B2A;
  --dark2:   #162436;
  --red:     #C0392B;
  --red-h:   #A93226;
  --white:   #FFFFFF;
  --off:     #F7F6F3;
  --light:   #F2F4F6;
  --body:    #2C3E50;
  --muted:   #6B7B8D;
  --border:  #E2E6EA;
  --ff-head: 'Playfair Display', Georgia, serif;
  --ff-body: 'DM Sans', system-ui, sans-serif;
  --max:     1160px;
  --nav-h:   72px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--ff-body);
  color: var(--body);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ── TYPOGRAPHY ───────────────────────────── */
h1,h2,h3,h4 { font-family: var(--ff-head); line-height: 1.2; }
h1 { font-size: clamp(2.4rem,5vw,4rem);   font-weight: 700; }
h2 { font-size: clamp(1.8rem,3.5vw,2.8rem); font-weight: 600; }
h3 { font-size: clamp(1.2rem,2vw,1.5rem); font-weight: 600; }
p  { font-size: 1rem; line-height: 1.75; }

/* ── LAYOUT ───────────────────────────────── */
.container { max-width: var(--max); margin: 0 auto; padding: 0 2rem; }
.section-white { background: var(--white); padding: 100px 0; }
.section-dark  { background: var(--dark);  padding: 100px 0; }
.section-light { background: var(--light); padding: 100px 0; }
.section-red   { background: var(--red);   padding: 80px 0; }

.section-label {
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--red); margin-bottom: 1rem;
}
.section-label.light { color: rgba(255,255,255,0.5); }
.section-title { margin-bottom: 1.5rem; color: var(--dark); }
.section-title.light { color: var(--white); }
.section-intro { max-width: 680px; color: var(--muted); font-size: 1.05rem; margin-bottom: 3rem; }

/* ── BUTTONS ──────────────────────────────── */
.btn-primary {
  display: inline-block; background: var(--red); color: var(--white);
  font-size: 0.9rem; font-weight: 600; letter-spacing: 0.04em;
  padding: 0.85rem 2rem; border-radius: 2px;
  transition: background .2s, transform .2s; border: none; cursor: pointer;
}
.btn-primary:hover { background: var(--red-h); transform: translateY(-2px); }
.btn-ghost {
  display: inline-block; border: 1.5px solid rgba(255,255,255,0.35); color: var(--white);
  font-size: 0.9rem; font-weight: 500; padding: 0.85rem 2rem; border-radius: 2px;
  transition: border-color .2s, background .2s;
}
.btn-ghost:hover { border-color: var(--white); background: rgba(255,255,255,0.08); }
.btn-outline {
  display: inline-block; border: 1.5px solid var(--dark); color: var(--dark);
  font-size: 0.9rem; font-weight: 600; padding: 0.8rem 2rem; border-radius: 2px;
  transition: background .2s, color .2s;
}
.btn-outline:hover { background: var(--dark); color: var(--white); }
.btn-white {
  display: inline-block; background: var(--white); color: var(--red);
  font-size: 0.95rem; font-weight: 700; padding: 0.9rem 2.2rem; border-radius: 2px;
  transition: transform .2s, box-shadow .2s;
}
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,.15); }

/* ── NAVIGATION ───────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; height: var(--nav-h);
  background: var(--dark); z-index: 1000; transition: box-shadow .3s;
}
.nav.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,.4); }
.nav-inner {
  max-width: var(--max); margin: 0 auto; padding: 0 2rem; height: 100%;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo img { height: 38px; filter: brightness(0) invert(1); }
.nav-links { display: flex; align-items: center; gap: 2.5rem; }
.nav-links a {
  color: rgba(255,255,255,.7); font-size: 0.88rem; font-weight: 500;
  letter-spacing: 0.03em; transition: color .2s;
}
.nav-links a:hover, .nav-links a.current-menu-item > a,
.nav-links li.current-menu-item a, .nav-links a.active { color: var(--white); }
.nav-cta {
  background: var(--red) !important; color: var(--white) !important;
  padding: 0.5rem 1.2rem; border-radius: 2px; font-weight: 600 !important;
}
.nav-cta:hover { background: var(--red-h) !important; }
.nav-burger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.nav-burger span { display: block; width: 24px; height: 2px; background: var(--white); transition: transform .3s, opacity .3s; }

/* ── HERO ─────────────────────────────────── */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  background: var(--dark); overflow: hidden; padding-top: var(--nav-h);
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 60% 60% at 80% 40%, rgba(192,57,43,.12) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 10% 80%, rgba(192,57,43,.06) 0%, transparent 60%);
}
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-inner { position: relative; z-index: 2; max-width: var(--max); margin: 0 auto; padding: 6rem 2rem 8rem; }
.hero-tag {
  display: inline-block; font-size: 0.75rem; font-weight: 600; letter-spacing: .2em;
  text-transform: uppercase; color: var(--red); border: 1px solid rgba(192,57,43,.4);
  padding: .4rem 1rem; border-radius: 2px; margin-bottom: 2rem;
  animation: fadeUp .8s ease both;
}
.hero-headline { color: var(--white); max-width: 760px; animation: fadeUp .8s .1s ease both; }
.hero-accent { color: var(--red); display: block; }
.hero-sub {
  color: rgba(255,255,255,.6); font-size: 1.1rem; max-width: 560px;
  margin: 1.8rem 0 2.8rem; animation: fadeUp .8s .2s ease both;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; animation: fadeUp .8s .3s ease both; }
.hero-scroll {
  position: absolute; bottom: 2.5rem; left: 2rem;
  display: flex; align-items: center; gap: .8rem;
  color: rgba(255,255,255,.3); font-size: .7rem; letter-spacing: .15em; text-transform: uppercase;
}
.hero-scroll-line { width: 40px; height: 1px; background: rgba(255,255,255,.2); }

/* ── PROBLEMS ─────────────────────────────── */
.problems-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.5px; background: var(--border); border: 1.5px solid var(--border); }
.problem-card { background: var(--white); padding: 2.2rem 1.8rem; transition: background .2s; }
.problem-card:hover { background: var(--off); }
.problem-num { font-family: var(--ff-head); font-size: 2rem; font-weight: 700; color: var(--red); opacity: .3; margin-bottom: .8rem; line-height: 1; }
.problem-card p { font-size: .95rem; }

/* ── OFFERS ───────────────────────────────── */
.offers-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: rgba(255,255,255,.1); margin-top: 3rem; }
.offer-card {
  display: flex; flex-direction: column; background: var(--dark2); padding: 2.5rem 2rem;
  border-top: 3px solid transparent; transition: border-color .2s, background .2s;
}
.offer-card:hover { border-top-color: var(--red); background: rgba(255,255,255,.04); }
.offer-num { font-family: var(--ff-head); font-size: 1.8rem; font-weight: 700; color: var(--red); opacity: .4; margin-bottom: 1.2rem; }
.offer-card h3 { color: var(--white); margin-bottom: 1rem; font-size: 1.2rem; }
.offer-card p  { color: rgba(255,255,255,.55); font-size: .92rem; flex: 1; }
.offer-arrow { margin-top: 1.8rem; color: var(--red); font-size: 1.2rem; transition: transform .2s; }
.offer-card:hover .offer-arrow { transform: translateX(6px); }

/* ── THE WAY ──────────────────────────────── */
.way-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start; margin-top: 2rem; }
.way-lead { font-size: 1.05rem; margin-bottom: 1.2rem; }
.way-content p:last-of-type { margin-bottom: 2rem; }
.way-principles { display: flex; flex-direction: column; gap: 2rem; }
.principle { display: flex; gap: 1.2rem; align-items: flex-start; }
.principle-marker {
  flex-shrink: 0; width: 4px; height: 4px; background: var(--red); border-radius: 50%;
  margin-top: .65rem; box-shadow: 0 0 0 5px rgba(192,57,43,.12);
}
.principle strong { display: block; font-weight: 600; color: var(--dark); margin-bottom: .3rem; font-size: .95rem; }
.principle p { font-size: .9rem; color: var(--muted); }

/* ── THINKING PREVIEW (homepage) ─────────── */
.articles-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 1.5rem; margin: 2.5rem 0; }
.article-card {
  display: block; background: var(--white); padding: 2rem;
  border: 1.5px solid var(--border); border-radius: 3px;
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.article-card:hover { border-color: var(--red); transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,.08); }
.article-tag { font-size: .7rem; font-weight: 600; letter-spacing: .15em; text-transform: uppercase; color: var(--red); margin-bottom: .8rem; }
.article-card h3 { font-size: 1.1rem; color: var(--dark); margin-bottom: .8rem; line-height: 1.35; }
.article-card.featured h3 { font-size: 1.3rem; }
.article-card p { font-size: .88rem; color: var(--muted); line-height: 1.6; }
.article-read { margin-top: 1.5rem; font-size: .85rem; font-weight: 600; color: var(--red); }
.thinking-more { text-align: center; margin-top: 1rem; }

/* ── CTA ──────────────────────────────────── */
.cta { text-align: center; }
.cta h2 { font-size: clamp(1.8rem,3vw,2.6rem); color: var(--white); margin-bottom: 1rem; }
.cta p  { color: rgba(255,255,255,.75); max-width: 520px; margin: 0 auto 2.2rem; }

/* ── FOOTER ───────────────────────────────── */
.footer { background: var(--dark); padding: 60px 0 0; }
.footer-inner {
  max-width: var(--max); margin: 0 auto; padding: 0 2rem 3rem;
  display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 3rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand img { filter: brightness(0) invert(1); margin-bottom: .8rem; }
.footer-brand p   { color: rgba(255,255,255,.4); font-size: .88rem; line-height: 1.7; }
.footer-links { display: flex; flex-direction: column; gap: .8rem; padding-top: .3rem; }
.footer-links a   { color: rgba(255,255,255,.5); font-size: .9rem; transition: color .2s; }
.footer-links a:hover { color: var(--white); }
.footer-contact p { color: rgba(255,255,255,.4); font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; margin-bottom: .5rem; }
.footer-cta { color: var(--red); font-size: .95rem; font-weight: 600; }
.footer-cta:hover { color: #e74c3c; }
.footer-bottom { max-width: var(--max); margin: 0 auto; padding: 1.2rem 2rem; }
.footer-bottom p { color: rgba(255,255,255,.2); font-size: .8rem; }

/* ── PAGE HERO (inner pages) ──────────────── */
.page-hero {
  background: var(--dark); padding: calc(var(--nav-h) + 70px) 0 70px;
  position: relative; overflow: hidden;
}
.page-hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 50% 80% at 90% 50%, rgba(192,57,43,.1), transparent 70%);
}
.page-hero .container  { position: relative; z-index: 1; }
.page-hero-label       { font-size: .72rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; color: var(--red); margin-bottom: 1rem; }
.page-hero h1          { color: var(--white); max-width: 700px; }
.page-hero p           { color: rgba(255,255,255,.55); font-size: 1.1rem; max-width: 560px; margin-top: 1.2rem; }

/* ── ABOUT PAGE ───────────────────────────── */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start; }
.about-text h2 { margin-bottom: 1.5rem; }
.about-text p  { margin-bottom: 1.2rem; color: var(--muted); }
.about-text p.lead { color: var(--body); font-size: 1.05rem; }
.about-beliefs { display: flex; flex-direction: column; }
.belief { padding: 1.8rem 0; border-bottom: 1px solid var(--border); }
.belief:first-child { border-top: 1px solid var(--border); }
.belief strong { display: block; font-weight: 600; color: var(--dark); margin-bottom: .4rem; }
.belief p { font-size: .92rem; color: var(--muted); }
.team-card { background: var(--off); padding: 2.5rem; border-left: 4px solid var(--red); }
.team-card h3 { margin-bottom: .2rem; }
.team-title { font-size: .85rem; color: var(--red); font-weight: 600; letter-spacing: .05em; margin-bottom: 1rem; }
.team-card p { color: var(--muted); font-size: .95rem; }
.team-photo { width: 80px; height: 80px; border-radius: 50%; object-fit: cover; margin-bottom: 1.2rem; border: 3px solid var(--red); }

/* ── SERVICES PAGE ────────────────────────── */
.service-block { padding: 80px 0; border-bottom: 1px solid var(--border); }
.service-block:last-child { border-bottom: none; }
.service-inner { display: grid; grid-template-columns: 1fr 1.6fr; gap: 5rem; align-items: start; }
.service-num { font-family: var(--ff-head); font-size: 3.5rem; font-weight: 700; color: var(--red); opacity: .2; line-height: 1; margin-bottom: .5rem; }
.service-meta h2 { font-size: 1.6rem; margin-bottom: .8rem; }
.service-tag  { font-size: .75rem; font-weight: 600; letter-spacing: .15em; text-transform: uppercase; color: var(--red); }
.service-detail h3 { font-size: 1.1rem; margin-bottom: .8rem; margin-top: 1.8rem; color: var(--dark); }
.service-detail h3:first-child { margin-top: 0; }
.service-detail p  { color: var(--muted); margin-bottom: .5rem; }
.service-detail ul { padding: 0; margin: .8rem 0; }
.service-detail ul li { padding: .4rem 0 .4rem 1.2rem; position: relative; color: var(--muted); font-size: .95rem; }
.service-detail ul li::before { content: '—'; position: absolute; left: 0; color: var(--red); font-weight: 700; }
.pilot-box { background: var(--off); border-left: 3px solid var(--red); padding: 1.5rem 1.8rem; margin-top: 1.5rem; }
.pilot-box strong { display: block; color: var(--dark); margin-bottom: .4rem; font-size: .95rem; }
.pilot-box p { font-size: .88rem; color: var(--muted); }

/* ── THINKING / BLOG PAGE ─────────────────── */
.blog-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 2rem; margin-top: 3rem; }
.blog-card {
  display: block; background: var(--white); border: 1.5px solid var(--border); border-radius: 3px;
  overflow: hidden; transition: transform .2s, box-shadow .2s, border-color .2s;
}
.blog-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,.08); border-color: var(--red); }
.blog-card-body  { padding: 1.8rem; }
.blog-tag { font-size: .7rem; font-weight: 600; letter-spacing: .15em; text-transform: uppercase; color: var(--red); margin-bottom: .7rem; }
.blog-card h3  { font-size: 1.05rem; color: var(--dark); margin-bottom: .7rem; line-height: 1.4; }
.blog-card p   { font-size: .88rem; color: var(--muted); line-height: 1.6; margin-bottom: 1.2rem; }
.blog-read     { font-size: .82rem; font-weight: 600; color: var(--red); }
.blog-featured { grid-column: span 3; display: grid; grid-template-columns: 1.2fr 1fr; }
.blog-featured .blog-card-image { min-height: 260px; background: var(--dark); position: relative; overflow: hidden; }
.blog-featured .blog-card-image img { width: 100%; height: 100%; object-fit: cover; opacity: .7; }
.blog-featured .blog-card-body { display: flex; flex-direction: column; justify-content: center; padding: 2.5rem; }
.blog-featured .blog-card h3 { font-size: 1.4rem; }
.blog-pagination { display: flex; justify-content: center; gap: .8rem; margin-top: 3rem; }
.blog-pagination a, .blog-pagination span {
  width: 40px; height: 40px; display: flex; align-items: center; justify-content: center;
  border: 1.5px solid var(--border); border-radius: 2px; font-size: .88rem; color: var(--dark);
  transition: background .2s, color .2s, border-color .2s;
}
.blog-pagination a:hover, .blog-pagination .current { background: var(--red); border-color: var(--red); color: var(--white); }

/* ── SINGLE POST ──────────────────────────── */
.post-hero { padding: calc(var(--nav-h) + 80px) 0 60px; background: var(--dark); }
.post-meta  { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.5rem; flex-wrap: wrap; }
.post-category {
  background: var(--red); color: var(--white); font-size: .7rem; font-weight: 700;
  letter-spacing: .15em; text-transform: uppercase; padding: .3rem .8rem; border-radius: 2px;
}
.post-date { color: rgba(255,255,255,.4); font-size: .85rem; }
.post-hero h1 { color: var(--white); max-width: 780px; }
.post-byline  { color: rgba(255,255,255,.4); font-size: .85rem; margin-top: 1.2rem; }
.post-body {
  max-width: 720px; margin: 0 auto; padding: 4rem 2rem;
}
.post-body p    { margin-bottom: 1.4rem; color: var(--body); font-size: 1rem; line-height: 1.85; }
.post-body h2   { margin: 2.5rem 0 1rem; color: var(--dark); }
.post-body h3   { margin: 2rem 0 .8rem; color: var(--dark); font-size: 1.15rem; }
.post-body ul   { padding-left: 1.5rem; margin-bottom: 1.4rem; }
.post-body ul li { color: var(--body); margin-bottom: .4rem; }
.post-body ol   { padding-left: 1.5rem; margin-bottom: 1.4rem; }
.post-body ol li { color: var(--body); margin-bottom: .4rem; }
.post-body blockquote {
  border-left: 3px solid var(--red); padding-left: 1.5rem; margin: 2rem 0;
  color: var(--dark); font-size: 1.1rem; font-style: italic; font-family: var(--ff-head);
}
.post-body img { margin: 2rem auto; border-radius: 3px; }
.post-nav { display: flex; justify-content: space-between; gap: 2rem; padding: 3rem 0; border-top: 1px solid var(--border); max-width: 720px; margin: 0 auto 0; padding-left: 2rem; padding-right: 2rem; }
.post-nav a { font-size: .88rem; color: var(--muted); transition: color .2s; max-width: 45%; }
.post-nav a:hover { color: var(--red); }
.post-nav span { font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--red); display: block; margin-bottom: .4rem; }

/* ── CONTACT PAGE ─────────────────────────── */
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 5rem; align-items: start; }
.contact-info h3 { margin-bottom: 1rem; }
.contact-info p  { color: var(--muted); margin-bottom: 1.5rem; }
.contact-item    { padding: 1.2rem 0; border-bottom: 1px solid var(--border); }
.contact-item:first-of-type { border-top: 1px solid var(--border); }
.contact-item strong { display: block; font-size: .75rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-bottom: .3rem; }
.contact-item a  { color: var(--dark); font-weight: 500; transition: color .2s; }
.contact-item a:hover { color: var(--red); }
.contact-form  { display: flex; flex-direction: column; gap: 1.2rem; }
.form-group    { display: flex; flex-direction: column; gap: .4rem; }
.form-group label { font-size: .82rem; font-weight: 600; letter-spacing: .05em; color: var(--dark); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: .8rem 1rem; border: 1.5px solid var(--border); border-radius: 2px;
  font-family: var(--ff-body); font-size: .95rem; color: var(--body); background: var(--white);
  transition: border-color .2s; outline: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--red); }
.form-group textarea { resize: vertical; min-height: 130px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-submit { margin-top: .5rem; }
.form-submit .btn-primary { width: 100%; text-align: center; padding: 1rem; font-size: 1rem; }
.form-note { font-size: .8rem; color: var(--muted); text-align: center; margin-top: .5rem; }
.form-success { background: #f0fdf4; border: 1.5px solid #86efac; padding: 1.5rem; border-radius: 3px; text-align: center; display: none; }
.form-success.show { display: block; }
.form-success p { color: #166534; font-weight: 500; }

/* ── ANIMATIONS ───────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ── WP ADMIN BAR FIX ─────────────────────── */
.admin-bar .nav { top: 32px; }
@media screen and (max-width: 782px) { .admin-bar .nav { top: 46px; } }

/* ── RESPONSIVE ───────────────────────────── */
@media (max-width: 1024px) {
  .problems-grid { grid-template-columns: repeat(2,1fr); }
  .offers-grid   { grid-template-columns: 1fr 1fr; }
  .articles-grid { grid-template-columns: 1fr 1fr; }
  .articles-grid .article-card.featured { grid-column: span 2; }
  .blog-grid     { grid-template-columns: 1fr 1fr; }
  .blog-featured { grid-column: span 2; }
  .way-grid      { grid-template-columns: 1fr; gap: 3rem; }
  .about-grid    { grid-template-columns: 1fr; gap: 3rem; }
  .contact-grid  { grid-template-columns: 1fr; gap: 3rem; }
  .service-inner { grid-template-columns: 1fr; gap: 2rem; }
  .footer-inner  { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column; position: fixed;
    top: var(--nav-h); left: 0; right: 0; background: var(--dark);
    padding: 1.5rem 2rem; gap: 1.2rem; border-top: 1px solid rgba(255,255,255,.08);
  }
  .nav-burger        { display: flex; }
  .problems-grid     { grid-template-columns: 1fr; }
  .offers-grid       { grid-template-columns: 1fr; }
  .articles-grid     { grid-template-columns: 1fr; }
  .articles-grid .article-card.featured { grid-column: span 1; }
  .blog-grid         { grid-template-columns: 1fr; }
  .blog-featured     { grid-template-columns: 1fr; }
  .footer-inner      { grid-template-columns: 1fr; gap: 2rem; }
  .form-row          { grid-template-columns: 1fr; }
  .hero-sub          { font-size: 1rem; }
  .post-nav          { flex-direction: column; }
}

/* ── BLOG CATEGORY FILTER ─────────────────── */
.blog-filter {
  display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: 2.5rem;
}
.blog-filter-btn {
  display: inline-block; padding: .45rem 1.1rem; border: 1.5px solid var(--border);
  border-radius: 2px; font-size: .82rem; font-weight: 600; color: var(--muted);
  transition: background .2s, color .2s, border-color .2s; cursor: pointer;
}
.blog-filter-btn:hover, .blog-filter-btn.active {
  background: var(--dark); border-color: var(--dark); color: var(--white);
}