/* ============================================================
   AirFilterGeek – Unified Design System v1.0 (Sprint 3)
   Air palette: white, cool gray, slate/navy, light sky blue
   No gradients. No AI-slop. No clinical/cartoon aesthetics.
   Pattern: WFG-parity, problem-first, evidence-forward
   ============================================================ */

/* --- Variables --- */
:root {
  --navy:        #152b3e;
  --ink:         #233040;
  --muted:       #5a6b7a;
  --sky:         #4a90c8;
  --sky-dark:    #3372a6;
  --pale:        #eaf3f9;
  --line:        #d4e0e8;
  --paper:       #fff;
  --gray-lt:     #f4f7f9;
  --cool-gray:   #e8edf1;
  --slate:       #3d5468;
  --orange:      #c05a18;
  --bg:          #f4f7f9;
  --max-width:   1140px;
  --radius:      8px;
  --radius-sm:   5px;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 17px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
button, select { font: inherit; }
button, a, select { touch-action: manipulation; }
button { cursor: pointer; }
a { color: var(--sky); text-underline-offset: 4px; text-decoration: none; }
a:hover { color: var(--sky-dark); text-decoration: underline; }
button:focus-visible, a:focus-visible, select:focus-visible {
  outline: 3px solid var(--orange); outline-offset: 4px;
}

/* --- Typography --- */
h1, h2, h3, h4 { color: var(--navy); line-height: 1.17; letter-spacing: -.03em; }
h1 { font-size: clamp(30px, 4vw, 50px); margin: 12px 0 22px; max-width: 800px; }
h2 { font-size: clamp(24px, 3vw, 32px); margin: 0 0 14px; }
h3 { font-size: clamp(19px, 2.5vw, 23px); margin: 10px 0 12px; }
h4 { font-size: 18px; margin: 8px 0 10px; }
p { margin: 0 0 18px; }
.eyebrow {
  font-size: 12px; letter-spacing: .15em; font-weight: 750;
  color: var(--sky); text-transform: uppercase; display: block; margin-bottom: 6px;
}

/* --- Layout --- */
.wrap { max-width: var(--max-width); margin: auto; padding: 0 28px; }
.container { max-width: var(--max-width); margin: auto; padding: 0 28px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 28px; }
.grid2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 24px; }

/* ==============================
   HEADER / NAV
   ============================== */
.site-head {
  border-bottom: 1px solid var(--line);
  background: var(--navy);
  position: sticky; top: 0; z-index: 200;
}
.head-inner {
  display: flex; justify-content: space-between; align-items: center;
  min-height: 66px; gap: 20px; padding: 12px 28px; flex-wrap: wrap;
  max-width: var(--max-width); margin: auto;
}
.logo {
  font-size: 1.35rem; font-weight: 900; color: #fff;
  letter-spacing: -.5px; text-decoration: none; white-space: nowrap; flex-shrink: 0;
}
.logo span { color: #7dc9f0; }
.main-nav { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.main-nav a, .main-nav > .nav-dropdown > a {
  color: rgba(255,255,255,.85); font-size: 14px; font-weight: 600;
  padding: 8px 12px; border-radius: 4px; text-decoration: none;
  transition: background .15s, color .15s;
}
.main-nav a:hover, .main-nav > .nav-dropdown > a:hover {
  background: rgba(255,255,255,.1); color: #fff;
}
.nav-dropdown { position: relative; }
.dropdown-menu {
  display: none; position: absolute; top: 100%; left: 0;
  background: var(--navy); border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius); min-width: 230px; padding: 8px 0;
  box-shadow: 0 8px 24px rgba(0,0,0,.3); z-index: 300;
}
.nav-dropdown:hover .dropdown-menu { display: block; }
.dropdown-menu a {
  display: block; padding: 10px 18px; color: rgba(255,255,255,.82);
  font-size: 14px; font-weight: 500; text-decoration: none;
}
.dropdown-menu a:hover { background: rgba(255,255,255,.08); color: #fff; }
.nav-toggle {
  display: none; background: none; border: none; color: #fff; font-size: 22px;
  padding: 6px; cursor: pointer;
}

/* ==============================
   HERO
   ============================== */
.hero {
  padding: 60px 0 52px;
  background: white;
  border-bottom: 1px solid var(--line);
}
.hero-grid {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center;
}
.hero h1 { font-size: clamp(32px, 3.8vw, 48px); margin-bottom: 18px; }
.lede { font-size: 18px; color: var(--muted); max-width: 600px; margin-bottom: 24px; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  text-decoration: none; border: 0;
  background: var(--sky); color: white; font-weight: 700; font-size: 15px;
  padding: 14px 22px; min-height: 48px; border-radius: var(--radius-sm);
  transition: background .15s; white-space: nowrap;
}
.btn:hover { background: var(--sky-dark); text-decoration: none; color: white; }
.btn.secondary {
  color: var(--navy); border: 1.5px solid var(--line); background: white;
}
.btn.secondary:hover { background: var(--pale); }
.btn.ghost {
  background: transparent; color: white;
  border: 1.5px solid rgba(255,255,255,.55);
}
.btn.ghost:hover { background: rgba(255,255,255,.12); color: white; border-color: rgba(255,255,255,.85); }
.helper { margin-top: 10px; font-size: 13px; color: var(--muted); }

/* ==============================
   PROBLEM ENTRY CARDS (category nav)
   ============================== */
.cat-bar {
  background: var(--cool-gray); border-bottom: 1px solid var(--line);
  padding: 0; overflow-x: auto;
}
.cat-bar-inner {
  max-width: var(--max-width); margin: auto; padding: 0 28px;
  display: flex; gap: 0;
}
.cat-bar a {
  display: inline-block; padding: 14px 18px;
  font-size: 14px; font-weight: 600; color: var(--ink);
  text-decoration: none; border-right: 1px solid var(--line); white-space: nowrap;
  transition: color .15s, background .15s;
}
.cat-bar a:last-child { border-right: none; }
.cat-bar a:hover { background: white; color: var(--sky); }
.cat-bar a.highlight { color: var(--orange); }

/* ==============================
   RIBBON / TRUST BAR
   ============================== */
.ribbon {
  padding: 14px 0; background: white; border-block: 1px solid var(--line);
}
.ribbon .wrap {
  display: flex; gap: 24px; flex-wrap: wrap;
  justify-content: space-between; font-size: 13px; color: var(--muted);
}
.ribbon span { font-weight: 600; }

/* ==============================
   SECTION BLOCKS
   ============================== */
.block { padding: 52px 0; }
.block-sm { padding: 36px 0; }
.section-header { max-width: 680px; margin-bottom: 28px; }
.section-sep { border: 0; border-top: 2px solid var(--line); margin: 36px 0; }

/* ==============================
   CARDS
   ============================== */
.card {
  background: white; border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden;
}
.card-body { padding: 22px 24px; }
.card-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

/* Problem entry cards */
.path-card {
  padding: 0; overflow: hidden;
  display: flex; flex-direction: column;
  background: white; border: 1px solid var(--line); border-radius: var(--radius);
  transition: box-shadow .15s;
}
.path-card:hover { box-shadow: 0 6px 22px rgba(21,43,62,.1); }
.path-card-body {
  padding: 20px 24px 24px;
  display: flex; flex-direction: column; flex: 1; gap: 8px;
}
.path-card-body a { margin-top: auto; padding-top: 8px; }
.number {
  font-size: 11px; letter-spacing: .12em; font-weight: 700;
  color: var(--muted); text-transform: uppercase;
}

/* ==============================
   PRODUCT CARDS (WFG-parity)
   ============================== */
.product-card {
  background: white; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px;
  display: flex; flex-direction: column; gap: 16px;
}
.product-card.top-pick { border-left: 4px solid var(--sky); }
.product-badge {
  display: inline-block; font-size: 11px; font-weight: 800;
  letter-spacing: .08em; text-transform: uppercase;
  padding: 3px 10px; border-radius: 3px; margin-bottom: 4px;
}
.badge-sky { background: var(--pale); color: var(--sky); }
.badge-slate { background: var(--cool-gray); color: var(--slate); }
.badge-accent { background: var(--pale); color: var(--sky); }
.badge-steel { background: var(--cool-gray); color: var(--slate); }
.badge-dark { background: #e4e8ec; color: var(--ink); }
.badge-navy { background: var(--navy); color: white; }
.badge-orange { background: #fdf0e8; color: var(--orange); }

/* Product spec table inside card */
.spec-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.spec-table td { padding: 7px 0; border-bottom: 1px solid var(--cool-gray); vertical-align: top; }
.spec-table td:first-child { color: var(--muted); font-weight: 600; width: 46%; padding-right: 12px; }
.spec-table tr:last-child td { border-bottom: none; }
.spec-label { font-weight: 700; font-size: 12px; color: var(--sky); text-transform: uppercase; letter-spacing: .06em; }

/* Spec callout boxes within card */
.spec-callout {
  background: var(--gray-lt); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 12px 16px;
  font-size: 14px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
}
.spec-callout-item strong { display: block; font-size: 13px; color: var(--muted); font-weight: 600; }
.spec-callout-item span { font-size: 16px; font-weight: 700; color: var(--navy); }

/* ==============================
   QUICK PICKS STRIP
   ============================== */
.quick-picks { margin-top: 24px; }
.quick-picks-title {
  font-size: 14px; font-weight: 700; color: var(--muted);
  letter-spacing: .06em; text-transform: uppercase; margin-bottom: 12px;
}
.quick-picks-grid { display: flex; flex-direction: column; gap: 12px; }
.quick-pick-item {
  background: white; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 16px 20px;
  display: grid; grid-template-columns: 1fr auto;
  gap: 12px; align-items: center;
}
.quick-pick-item h4 { margin: 0 0 4px; font-size: 16px; }
.quick-pick-item p { margin: 0; font-size: 14px; color: var(--muted); }
.quick-pick-badge {
  display: inline-block; font-size: 11px; font-weight: 800;
  letter-spacing: .07em; text-transform: uppercase;
  padding: 2px 8px; border-radius: 3px;
  background: var(--pale); color: var(--sky);
  margin-bottom: 4px;
}
.quick-pick-badge.orange { background: #fdf0e8; color: var(--orange); }
.quick-pick-badge.slate { background: var(--cool-gray); color: var(--slate); }
.quick-pick-cta {
  display: inline-flex; align-items: center;
  font-size: 14px; font-weight: 700; color: var(--sky);
  white-space: nowrap;
}
.quick-pick-cta:hover { color: var(--sky-dark); }

/* ==============================
   "WHAT SOLUTION DO I NEED?" SECTION
   ============================== */
.solution-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 20px;
}
.solution-card {
  background: white; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 22px;
}
.solution-card h3 { font-size: 18px; margin-bottom: 6px; }
.solution-card p { font-size: 14px; color: var(--muted); margin-bottom: 10px; }
.solution-card a { font-weight: 700; font-size: 14px; }

/* ==============================
   SOURCE CONTROL CALLOUT
   ============================== */
.source-control-callout {
  background: var(--pale); border-left: 4px solid var(--sky);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 18px 22px; margin: 22px 0; font-size: 15px;
}
.source-control-callout strong { color: var(--navy); }

/* ==============================
   AEO ANSWER BLOCK
   ============================== */
.aeo-block {
  background: white; border: 1px solid var(--line);
  border-left: 4px solid var(--sky);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 20px 24px; margin: 24px 0;
}
.aeo-block .aeo-label {
  font-size: 11px; font-weight: 800; letter-spacing: .12em;
  text-transform: uppercase; color: var(--sky); margin-bottom: 8px; display: block;
}
.aeo-block .aeo-answer {
  font-size: 17px; font-weight: 700; color: var(--navy);
  margin-bottom: 10px; line-height: 1.4;
}
.aeo-block .aeo-qualification {
  font-size: 14px; color: var(--muted); margin-bottom: 10px;
}
.aeo-block .aeo-why { font-size: 14px; margin-bottom: 8px; }
.aeo-block .aeo-learn { font-size: 13px; font-weight: 700; }

/* ==============================
   ARTICLE TEMPLATE COMPONENTS
   ============================== */
.quick-verdict {
  background: var(--pale); padding: 20px 24px;
  border-left: 4px solid var(--sky); border-radius: 0 var(--radius) var(--radius) 0;
  margin-bottom: 24px;
}
.quick-verdict .verdict-label {
  font-size: 11px; font-weight: 800; letter-spacing: .1em;
  text-transform: uppercase; color: var(--sky); margin-bottom: 6px; display: block;
}
.verdict-summary { font-size: 17px; font-weight: 700; color: var(--navy); margin-bottom: 8px; }

/* ==============================
   TRUST BLOCK / EVIDENCE BLOCK
   ============================== */
.trust-block {
  display: flex; flex-wrap: wrap; gap: 20px; margin: 24px 0;
}
.trust-item {
  display: flex; flex-direction: column; align-items: center;
  text-align: center; min-width: 120px;
}
.trust-num {
  font-size: 28px; font-weight: 900; color: var(--navy); line-height: 1;
}
.trust-label {
  font-size: 12px; color: var(--muted); font-weight: 600;
  margin-top: 4px; text-align: center;
}

/* Evidence tier badges */
.tier-badge {
  display: inline-block; font-size: 10px; font-weight: 800;
  letter-spacing: .08em; text-transform: uppercase;
  padding: 1px 6px; border-radius: 3px; margin-left: 6px;
  vertical-align: middle;
}
.tier-t1 { background: #dff5e3; color: #196f30; }
.tier-t2 { background: #e0eeff; color: #1a4fa6; }
.tier-t3 { background: #fff4e0; color: #8a5200; }
.tier-t4 { background: #f0f0f0; color: #555; }

/* ==============================
   REVIEWER BLOCK
   ============================== */
.reviewer-block {
  display: flex; align-items: center; gap: 20px;
  background: var(--pale); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 16px 20px; margin-bottom: 24px;
}
.reviewer-img {
  width: 80px; height: 80px; object-fit: cover;
  border-radius: 50%; flex-shrink: 0; border: 2px solid var(--line);
}
.reviewer-text { flex: 1; }
.reviewer-label {
  font-size: 11px; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; color: var(--sky); margin-bottom: 2px;
}
.reviewer-name { font-size: 15px; font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.reviewer-bio { font-size: 13px; color: var(--muted); margin: 0; line-height: 1.5; }

/* ==============================
   INFO / NOTE BOXES
   ============================== */
.info-box {
  background: #e6f2fb; border-left: 4px solid #4a90c8;
  padding: 16px 20px; margin: 18px 0; border-radius: 0 6px 6px 0; font-size: 14px;
}
.affiliate-disclosure {
  font-size: 12.5px; color: #9aa7b0; padding: 12px 0;
  background: none; border: 0; text-align: center;
  max-width: 720px; margin: 18px auto;
}

/* ==============================
   ACH/COVERAGE UI
   ============================== */
.coverage-ui {
  background: white; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px 20px; margin: 16px 0;
}
.coverage-ui .coverage-row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 8px 0; border-bottom: 1px solid var(--cool-gray); font-size: 14px;
}
.coverage-ui .coverage-row:last-child { border-bottom: none; }
.coverage-ui .coverage-label { color: var(--muted); font-weight: 600; }
.coverage-ui .coverage-val { font-weight: 700; color: var(--navy); }
.coverage-ui .coverage-note { font-size: 12px; color: var(--muted); }
.coverage-badge-aham {
  display: inline-block; font-size: 10px; font-weight: 800;
  background: #dff5e3; color: #196f30; padding: 1px 6px;
  border-radius: 3px; letter-spacing: .06em; text-transform: uppercase;
}
.coverage-badge-mfr {
  display: inline-block; font-size: 10px; font-weight: 800;
  background: #fff4e0; color: #8a5200; padding: 1px 6px;
  border-radius: 3px; letter-spacing: .06em; text-transform: uppercase;
}

/* ==============================
   PROS / CONS
   ============================== */
.pros-cons {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 16px 0;
}
.pros-list, .cons-list { list-style: none; padding: 0; }
.pros-list { background: #eaf7ee; border-radius: var(--radius); padding: 16px 18px; }
.cons-list { background: #fdf2f0; border-radius: var(--radius); padding: 16px 18px; }
.pros-list li, .cons-list li { font-size: 14px; padding: 4px 0; padding-left: 20px; position: relative; }
.pros-list li::before { content: '✓'; position: absolute; left: 0; color: #2a7a41; font-weight: 700; }
.cons-list li::before { content: '✕'; position: absolute; left: 0; color: #c0392b; font-weight: 700; }

/* ==============================
   BREADCRUMB
   ============================== */
.breadcrumb {
  font-size: 13px; color: var(--muted); padding: 10px 0;
  display: flex; gap: 6px; flex-wrap: wrap;
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--sky); }
.breadcrumb span { color: var(--line); }

/* ==============================
   FOOTER
   ============================== */
.site-foot {
  background: var(--navy); color: rgba(255,255,255,.7);
  padding: 36px 0 28px; font-size: 13px; margin-top: 48px;
}
.foot-inner {
  max-width: var(--max-width); margin: auto; padding: 0 28px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 24px;
}
.foot-logo { color: #fff; font-weight: 900; font-size: 1.1rem; margin-bottom: 8px; display: block; }
.foot-logo span { color: #7dc9f0; }
.foot-links { display: flex; gap: 18px; flex-wrap: wrap; }
.foot-links a { color: rgba(255,255,255,.65); text-decoration: none; }
.foot-links a:hover { color: #fff; }
.foot-disclosure { max-width: var(--max-width); margin: 16px auto 0; padding: 0 28px; color: rgba(255,255,255,.45); line-height: 1.6; }

/* ==============================
   BUTTONS
   ============================== */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  text-decoration: none; border: 0;
  background: var(--sky); color: white; font-weight: 700; font-size: 15px;
  padding: 12px 20px; min-height: 44px; border-radius: var(--radius-sm);
  transition: background .15s;
}
.btn-primary:hover { background: var(--sky-dark); text-decoration: none; color: white; }
.btn-sm { padding: 8px 14px; min-height: 36px; font-size: 13px; }
.cta-box { padding: 20px; background: var(--pale); border-radius: var(--radius); margin: 16px 0; }

/* ==============================
   LABEL
   ============================== */
.label { font-size: 12px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .1em; }
.label-orange { color: var(--orange); }

/* ==============================
   TABLE SCROLL
   ============================== */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table-scroll table { min-width: 580px; width: 100%; border-collapse: collapse; font-size: 14px; }
.table-scroll th { background: var(--navy); color: #fff; padding: 10px 14px; text-align: left; font-size: 13px; }
.table-scroll td { padding: 9px 14px; border-bottom: 1px solid var(--cool-gray); vertical-align: top; }
.table-scroll tr:nth-child(even) td { background: var(--gray-lt); }

/* ==============================
   HERO IMAGE (background)
   ============================== */
.hero-img-bg {
  position: absolute; inset: 0; z-index: 0;
  width: 100%; height: 100%; object-fit: cover; opacity: 0.10;
}

/* ==============================
   GUIDE CALLOUT (paid guide — moved lower)
   ============================== */
.guide-callout {
  border: 2px solid var(--sky); border-radius: var(--radius);
  padding: 28px 32px; background: var(--pale); margin: 32px 0;
}
.guide-callout h3 { color: var(--navy); font-size: 1.15em; margin-bottom: 8px; }
.guide-callout p { color: var(--ink); font-size: 15px; }
.guide-callout ul { padding-left: 20px; margin: 10px 0 16px; font-size: 14px; color: var(--muted); line-height: 1.8; }
.guide-callout .guide-cta-row { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.guide-callout .guide-price-note { font-size: 13px; color: var(--muted); }

/* ==============================
   RESPONSIVE
   ============================== */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .grid3 { grid-template-columns: 1fr 1fr; }
  .solution-grid { grid-template-columns: 1fr; }
  .pros-cons { grid-template-columns: 1fr; }
  .page-layout { grid-template-columns: 1fr; gap: 28px; }
  .sidebar { display: none; }
}
@media (max-width: 620px) {
  .wrap, .container { padding-inline: 18px; }
  .head-inner { padding: 10px 18px; }
  .hero { padding: 40px 0 36px; }
  .block { padding: 36px 0; }
  .grid3 { grid-template-columns: 1fr; }
  .grid2 { grid-template-columns: 1fr; }
  .quick-pick-item { grid-template-columns: 1fr; }
  .trust-block { gap: 14px; }
  .reviewer-block { flex-direction: column; align-items: flex-start; }
  .reviewer-img { width: 64px; height: 64px; }
  .table-scroll table { min-width: 480px; }
  .foot-inner { flex-direction: column; gap: 16px; }
  .spec-callout { grid-template-columns: 1fr 1fr; }
  .guide-callout { padding: 20px 20px; }
  .nav-toggle { display: block; }
  .main-nav { display: none; width: 100%; flex-direction: column; background: var(--navy); padding: 8px 0 16px; }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 10px 18px; }
  .dropdown-menu { position: static; display: none; box-shadow: none; border: none; padding: 0 0 0 18px; }
  .nav-dropdown:hover .dropdown-menu { display: none; }
  .nav-dropdown.open .dropdown-menu { display: block; }
}

/* Mobile fix 2026-09-23 (Codey, deploy-gate step 3): 15 review/guide/blog pages use an
   inline two-column grid (`grid-template-columns:1fr 300px`) on .wrap for the
   content+sidebar layout. Inline styles win over the .page-layout responsive rule above,
   so those pages kept a 300px sidebar track below 900px and overflowed horizontally
   (measured 838px scrollWidth at a 375px viewport). Collapse the inline grid on small
   screens so the aside stacks under the article. */
@media (max-width: 900px) {
  .wrap[style*="300px"] { grid-template-columns: 1fr !important; gap: 28px !important; }
  /* Grid items default to min-width:auto, so the 480px min-width comparison tables
     inside .table-scroll were still stretching the column past the viewport. Force the
     tracks to shrink and let .table-scroll do the horizontal scrolling it was built for. */
  .wrap[style*="300px"] > main,
  .wrap[style*="300px"] > aside { min-width: 0; }
}