/* === CHIMBA JEWELS — MAIN STYLESHEET === */

/* RESET & BASE */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --emerald: #1a7a4a;
  --emerald-dark: #0f5233;
  --emerald-light: #e8f5ee;
  --gold: #c9a84c;
  --gold-light: #f5f0e0;
  --text: #1a1a1a;
  --text-muted: #666;
  --bg: #fff;
  --bg-alt: #f8f8f5;
  --border: #e0e0d8;
  --radius: 6px;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, system-ui, sans-serif;
}

html { scroll-behavior: smooth; }
body { font-family: var(--font-body); color: var(--text); background: var(--bg); line-height: 1.6; font-size: 16px; }
a { color: var(--emerald); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

/* TYPOGRAPHY */
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.2; }
h1 { font-size: clamp(2rem, 5vw, 3rem); margin-bottom: 1rem; }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); margin-bottom: 0.75rem; }
h3 { font-size: 1.15rem; margin-bottom: 0.5rem; }
p { margin-bottom: 1rem; }

/* LAYOUT */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.container--narrow { max-width: 800px; }
.section { padding: 4rem 0; }
.section--alt { background: var(--bg-alt); }

/* HEADER */
.site-header { background: #fff; border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; flex-direction: column; gap: 0; text-decoration: none; }
.logo-text { font-family: var(--font-display); font-size: 1.25rem; font-weight: 700; color: var(--emerald-dark); letter-spacing: -0.02em; }
.logo-sub { font-size: 0.65rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--text-muted); line-height: 1; }
.main-nav ul { display: flex; gap: 2rem; align-items: center; }
.main-nav a { font-size: 0.9rem; font-weight: 500; color: var(--text); transition: color 0.15s; }
.main-nav a:hover { color: var(--emerald); text-decoration: none; }
.nav-cta { background: var(--emerald); color: #fff !important; padding: 0.5rem 1.25rem; border-radius: var(--radius); font-size: 0.85rem !important; }
.nav-cta:hover { background: var(--emerald-dark) !important; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 0.5rem; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; }

/* BUTTONS */
.btn { display: inline-block; padding: 0.75rem 1.5rem; border-radius: var(--radius); font-weight: 600; font-size: 0.95rem; cursor: pointer; transition: all 0.15s; text-decoration: none; border: 2px solid transparent; }
.btn--primary { background: var(--emerald); color: #fff; border-color: var(--emerald); }
.btn--primary:hover { background: var(--emerald-dark); border-color: var(--emerald-dark); text-decoration: none; }
.btn--secondary { background: transparent; color: var(--emerald); border-color: var(--emerald); }
.btn--secondary:hover { background: var(--emerald-light); text-decoration: none; }
.btn--ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn--ghost:hover { border-color: var(--text); text-decoration: none; }
.btn--sm { padding: 0.5rem 1rem; font-size: 0.85rem; }
.btn--lg { padding: 0.875rem 2rem; font-size: 1rem; }
.btn--xl { padding: 1rem 2.5rem; font-size: 1.05rem; }

/* HERO */
.hero { background: linear-gradient(135deg, var(--emerald-dark) 0%, var(--emerald) 100%); color: #fff; padding: 5rem 0 4rem; }
.hero-eyebrow { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.15em; opacity: 0.75; margin-bottom: 1rem; }
.hero-headline { font-size: clamp(2.5rem, 6vw, 4rem); font-family: var(--font-display); font-weight: 700; line-height: 1.1; margin-bottom: 1.5rem; }
.hero-description { font-size: 1.1rem; max-width: 600px; opacity: 0.9; margin-bottom: 2rem; line-height: 1.7; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.hero-actions .btn--primary { background: #fff; color: var(--emerald-dark); }
.hero-actions .btn--primary:hover { background: var(--gold-light); }
.hero-actions .btn--ghost { border-color: rgba(255,255,255,0.4); color: #fff; }
.hero-actions .btn--ghost:hover { border-color: #fff; }
.hero-sub { font-size: 0.85rem; opacity: 0.65; }

/* SECTION TITLES */
.section-title { font-size: clamp(1.5rem, 3vw, 2.25rem); margin-bottom: 0.5rem; }
.section-subtitle { color: var(--text-muted); margin-bottom: 2rem; font-size: 1.05rem; }
.section-cta { text-align: center; margin-top: 2rem; }

/* ORIGINS GRID */
.origins-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem; }
.origin-card { display: block; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; text-decoration: none; color: var(--text); transition: all 0.15s; }
.origin-card:hover { border-color: var(--emerald); box-shadow: var(--shadow); text-decoration: none; }
.origin-card h3 { font-size: 1.35rem; color: var(--emerald-dark); margin-bottom: 0.5rem; }
.origin-card p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 1rem; line-height: 1.6; }
.origin-link { font-size: 0.85rem; color: var(--emerald); font-weight: 600; }
.origin-icon { width: 40px; height: 40px; border-radius: 50%; margin-bottom: 1rem; }
.origin-icon--muzo { background: linear-gradient(135deg, #1a7a4a, #0f5233); }
.origin-icon--coscuez { background: linear-gradient(135deg, #146b42, #0a3d28); }
.origin-icon--chivor { background: linear-gradient(135deg, #1a6b7a, #0f4a5c); }

/* STONES GRID */
.stones-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1.25rem; }
.stone-card { display: block; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; text-decoration: none; color: var(--text); transition: all 0.15s; }
.stone-card:hover { border-color: var(--emerald); box-shadow: var(--shadow); transform: translateY(-2px); text-decoration: none; }
.stone-image-placeholder { background: linear-gradient(135deg, var(--emerald-light), #d0e8d8); aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center; position: relative; flex-direction: column; gap: 0.5rem; }
.stone-id { font-family: var(--font-display); font-size: 1rem; color: var(--emerald-dark); font-weight: 600; }
.stone-badge { position: absolute; top: 0.5rem; right: 0.5rem; background: var(--gold); color: #fff; font-size: 0.65rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; padding: 0.2rem 0.5rem; border-radius: 3px; }
.stone-info { padding: 1rem; }
.stone-origin { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--emerald); font-weight: 600; margin-bottom: 0.25rem; }
.stone-color { font-size: 1rem; margin-bottom: 0.5rem; }
.stone-specs { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 0.5rem; }
.spec { font-size: 0.75rem; background: var(--bg-alt); color: var(--text-muted); padding: 0.15rem 0.5rem; border-radius: 3px; }
.stone-treatment { font-size: 0.8rem; color: var(--text-muted); }
.stone-price { font-weight: 700; color: var(--emerald-dark); margin-bottom: 0; }
.stone-price--inquiry { font-size: 0.8rem; color: var(--text-muted); font-style: italic; }

/* CATALOG PAGE */
.catalog-header { background: var(--emerald-dark); color: #fff; padding: 3rem 0 2rem; }
.catalog-header h1 { color: #fff; }
.catalog-lead { opacity: 0.85; margin-bottom: 0; font-size: 1.05rem; }
.catalog-layout { display: grid; grid-template-columns: 220px 1fr; gap: 2rem; align-items: start; }
.catalog-filters h2 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); margin-bottom: 1rem; }
.filter-list { display: flex; flex-direction: column; gap: 0.25rem; margin-bottom: 2rem; }
.filter-item { display: block; padding: 0.5rem 0.75rem; border-radius: var(--radius); font-size: 0.9rem; color: var(--text); transition: all 0.1s; }
.filter-item:hover { background: var(--emerald-light); text-decoration: none; }
.filter-item--active { background: var(--emerald); color: #fff; font-weight: 600; }
.filter-item--active:hover { background: var(--emerald-dark); }
.filter-cta { border-top: 1px solid var(--border); padding-top: 1.5rem; }
.filter-cta p { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0.75rem; }
.stones-grid--catalog { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
.catalog-footer-cta { margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--border); font-size: 0.9rem; color: var(--text-muted); }

/* STONE DETAIL */
.stone-detail-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; margin-top: 1.5rem; }
.stone-image-lg { aspect-ratio: 4/3; border-radius: var(--radius); border: 1px solid var(--border); flex-direction: column; }
.stone-id-lg { font-family: var(--font-display); font-size: 1.5rem; color: var(--emerald-dark); font-weight: 700; }
.stone-image-note { font-size: 0.8rem; color: var(--text-muted); }
.detail-badge--untreated { background: var(--gold-light); border: 1px solid var(--gold); border-radius: var(--radius); padding: 0.75rem 1rem; margin-top: 1rem; display: flex; gap: 0.75rem; align-items: baseline; }
.detail-badge--untreated strong { color: var(--gold); font-size: 0.9rem; }
.detail-badge--untreated span { font-size: 0.8rem; color: var(--text-muted); }
.stone-detail-origin { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--emerald); font-weight: 600; margin-bottom: 0.25rem; }
.stone-detail-title { font-size: 2rem; margin-bottom: 0.25rem; }
.stone-detail-id { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1rem; }
.stone-detail-description { font-size: 1rem; color: var(--text-muted); margin-bottom: 1.5rem; line-height: 1.7; }
.stone-specs-dl { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin-bottom: 1.5rem; }
.spec-row { display: grid; grid-template-columns: 140px 1fr; border-bottom: 1px solid var(--border); }
.spec-row:last-child { border-bottom: none; }
.spec-row dt { background: var(--bg-alt); padding: 0.6rem 1rem; font-size: 0.85rem; font-weight: 600; color: var(--text-muted); }
.spec-row dd { padding: 0.6rem 1rem; font-size: 0.9rem; }
.stone-detail-cta { border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; margin-bottom: 1.5rem; text-align: center; }
.stone-detail-price { font-size: 2rem; font-family: var(--font-display); color: var(--emerald-dark); font-weight: 700; margin-bottom: 1rem; }
.stone-detail-price-note { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 1rem; }
.stone-sold-note { color: var(--text-muted); font-style: italic; }
.origin-summary { background: var(--emerald-light); border-radius: var(--radius); padding: 1.5rem; }
.origin-summary h2 { font-size: 1.1rem; color: var(--emerald-dark); margin-bottom: 0.5rem; }
.origin-summary p { font-size: 0.9rem; color: var(--text); line-height: 1.6; margin-bottom: 0.75rem; }
.learn-more-link { font-size: 0.85rem; color: var(--emerald); font-weight: 600; }

/* EDUCATION */
.edu-header { background: var(--emerald-dark); color: #fff; padding: 3rem 0; }
.edu-header h1 { color: #fff; }
.article-lead { font-size: 1.1rem; max-width: 700px; opacity: 0.9; line-height: 1.7; }
.edu-body { padding: 3rem 0; }
.toc { background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem 2rem; margin-bottom: 3rem; }
.toc h2 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); margin-bottom: 0.75rem; }
.toc ol { list-style: decimal; padding-left: 1.25rem; }
.toc li { margin-bottom: 0.35rem; }
.toc a { font-size: 0.9rem; }
.edu-section { margin-bottom: 3rem; padding-bottom: 3rem; border-bottom: 1px solid var(--border); }
.edu-section:last-of-type { border-bottom: none; }
.edu-section h2 { color: var(--emerald-dark); margin-bottom: 1rem; }
.edu-section h3 { font-size: 1.1rem; color: var(--text); margin-top: 1.5rem; margin-bottom: 0.5rem; }
.section-summary { font-size: 1.05rem; color: var(--emerald-dark); font-weight: 500; line-height: 1.6; margin-bottom: 1rem; }
.key-fact { background: var(--gold-light); border-left: 3px solid var(--gold); padding: 1rem 1.25rem; margin: 1.5rem 0; border-radius: 0 var(--radius) var(--radius) 0; font-size: 0.9rem; }
.key-fact strong { color: var(--gold); }
.mine-compare { overflow-x: auto; }
.mine-compare table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.mine-compare th { background: var(--emerald-dark); color: #fff; padding: 0.75rem 1rem; text-align: left; font-weight: 600; }
.mine-compare td { padding: 0.65rem 1rem; border-bottom: 1px solid var(--border); }
.mine-compare tr:last-child td { border-bottom: none; }
.mine-compare tr:nth-child(even) td { background: var(--bg-alt); }
.buying-checklist { list-style: decimal; padding-left: 1.5rem; }
.buying-checklist li { margin-bottom: 0.75rem; font-size: 0.95rem; }

/* VALUE PROPS */
.value-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 2rem; }
.value-item { text-align: center; }
.value-icon { font-size: 2rem; color: var(--emerald); margin-bottom: 1rem; }
.value-item h3 { font-size: 1.05rem; margin-bottom: 0.5rem; }
.value-prop-text { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }

/* FAQ */
.faq-list { display: flex; flex-direction: column; gap: 1.5rem; max-width: 800px; }
.faq-question { font-size: 1.05rem; font-weight: 600; font-family: var(--font-display); margin-bottom: 0.5rem; }
.faq-answer { font-size: 0.95rem; color: var(--text-muted); line-height: 1.7; }

/* CTA BOX */
.cta-box { background: var(--emerald-dark); color: #fff; border-radius: 12px; padding: 3rem 2rem; text-align: center; }
.cta-box h2 { color: #fff; margin-bottom: 1rem; font-size: 1.75rem; }
.cta-box p { opacity: 0.85; margin-bottom: 1.5rem; font-size: 1.05rem; }
.cta-box .btn--primary { background: #fff; color: var(--emerald-dark); font-size: 1.05rem; }
.cta-box .btn--primary:hover { background: var(--gold-light); }
.cta-sub { margin-top: 1rem; font-size: 0.85rem; opacity: 0.7; }
.cta-sub a { color: #fff; text-decoration: underline; }

/* WHOLESALE PAGE */
.page-lead { font-size: 1.15rem; color: var(--text-muted); margin-bottom: 2rem; line-height: 1.7; }
.wholesale-grid { display: grid; grid-template-columns: 1fr 340px; gap: 3rem; align-items: start; }
.how-it-works { list-style: none; counter-reset: steps; }
.how-it-works li { counter-increment: steps; display: grid; grid-template-columns: 2.5rem 1fr; gap: 0.5rem 1rem; margin-bottom: 1.5rem; }
.how-it-works li::before { content: counter(steps); background: var(--emerald); color: #fff; width: 2.5rem; height: 2.5rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 1rem; flex-shrink: 0; grid-row: span 2; }
.how-it-works strong { display: block; font-size: 1rem; }
.how-it-works p { font-size: 0.9rem; color: var(--text-muted); margin: 0; }
.offer-list { list-style: disc; padding-left: 1.25rem; margin-bottom: 2rem; }
.offer-list li { margin-bottom: 0.4rem; font-size: 0.95rem; }
.sidebar-cta { background: var(--emerald-light); border: 1px solid var(--emerald); border-radius: var(--radius); padding: 1.5rem; margin-bottom: 1.5rem; }
.sidebar-cta h2 { font-size: 1.1rem; color: var(--emerald-dark); margin-bottom: 0.5rem; }
.sidebar-cta p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 1rem; }
.sidebar-contact { font-size: 0.9rem; color: var(--text-muted); }
.sidebar-contact h3 { font-size: 1rem; margin-bottom: 0.25rem; }

/* INQUIRY FORM */
.inquiry-header { margin-bottom: 2rem; }
.inquiry-lead { font-size: 1.1rem; color: var(--text-muted); margin-bottom: 1rem; }
.inquiry-perks { padding-left: 1.25rem; list-style: disc; }
.inquiry-perks li { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 0.25rem; }
.inquiry-form { background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; }
fieldset { border: none; margin-bottom: 2rem; }
legend { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; color: var(--emerald-dark); margin-bottom: 1.25rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--emerald-light); width: 100%; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.35rem; }
.form-group--required label::after { content: " *"; color: #c0392b; }
label { font-size: 0.85rem; font-weight: 600; color: var(--text); }
input[type="text"], input[type="email"], input[type="tel"], select, textarea {
  width: 100%; padding: 0.65rem 0.875rem; border: 1px solid var(--border);
  border-radius: var(--radius); font-family: var(--font-body); font-size: 0.95rem;
  background: #fff; transition: border-color 0.15s; color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--emerald); box-shadow: 0 0 0 3px rgba(26,122,74,0.1); }
input.field--error, select.field--error { border-color: #c0392b; }
textarea { resize: vertical; min-height: 100px; }
.checkbox-group { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 0.25rem; }
.checkbox-label { display: flex; align-items: center; gap: 0.5rem; cursor: pointer; font-size: 0.9rem; }
.checkbox-label input { width: auto; }
.form-submit { text-align: center; margin-top: 1rem; }
.form-note { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.75rem; }

/* ABOUT PAGE */
.about-page h2 { margin-top: 2rem; }
.about-cta { margin-top: 2.5rem; display: flex; gap: 1rem; flex-wrap: wrap; }

/* THANKS PAGE */
.thanks-box { text-align: center; max-width: 500px; margin: 4rem auto; padding: 3rem 2rem; background: var(--bg-alt); border-radius: 12px; border: 1px solid var(--border); }
.thanks-icon { font-size: 3rem; color: var(--emerald); margin-bottom: 1rem; }
.thanks-box h1 { font-size: 2rem; margin-bottom: 1rem; }
.thanks-box p { color: var(--text-muted); margin-bottom: 1rem; }
.thanks-actions { display: flex; gap: 1rem; justify-content: center; margin-top: 1.5rem; flex-wrap: wrap; }

/* BREADCRUMB */
.breadcrumb { font-size: 0.8rem; color: rgba(255,255,255,0.6); margin-bottom: 1rem; }
.breadcrumb a { color: rgba(255,255,255,0.75); }
.breadcrumb a:hover { color: #fff; }
.catalog-body .breadcrumb, .stone-detail .breadcrumb, .inquiry-page .breadcrumb, .about-page .breadcrumb, .wholesale-page .breadcrumb { color: var(--text-muted); }
.catalog-body .breadcrumb a, .stone-detail .breadcrumb a, .inquiry-page .breadcrumb a, .about-page .breadcrumb a, .wholesale-page .breadcrumb a { color: var(--text-muted); }

/* FLASH */
.flash-messages { padding: 0.75rem 1.5rem; }
.flash { padding: 0.75rem 1rem; border-radius: var(--radius); font-size: 0.9rem; margin-bottom: 0.5rem; }
.flash--error { background: #fde8e8; border: 1px solid #e0a0a0; color: #8b2020; }
.flash--success { background: var(--emerald-light); border: 1px solid var(--emerald); color: var(--emerald-dark); }

/* FOOTER */
.site-footer { background: var(--text); color: rgba(255,255,255,0.7); padding: 3rem 0 1.5rem; margin-top: 4rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
.footer-logo { font-family: var(--font-display); font-size: 1.25rem; color: #fff; font-weight: 700; margin-bottom: 0.5rem; }
.footer-brand p { font-size: 0.85rem; line-height: 1.6; }
.footer-links h3 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; color: rgba(255,255,255,0.5); margin-bottom: 0.75rem; font-family: var(--font-body); }
.footer-links ul { display: flex; flex-direction: column; gap: 0.4rem; }
.footer-links a { font-size: 0.85rem; color: rgba(255,255,255,0.7); transition: color 0.15s; }
.footer-links a:hover { color: #fff; text-decoration: none; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 1.25rem; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.5rem; }
.footer-bottom p { font-size: 0.8rem; }
.footer-tagline { color: var(--emerald); font-style: italic; }

/* EMPTY STATE */
.empty-state { text-align: center; padding: 3rem; color: var(--text-muted); }

/* RESPONSIVE */
@media (max-width: 900px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .main-nav.is-open { display: block; position: absolute; top: 64px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--border); padding: 1rem 1.5rem; }
  .main-nav.is-open ul { flex-direction: column; gap: 0; }
  .main-nav.is-open li a { display: block; padding: 0.75rem 0; border-bottom: 1px solid var(--border); }
  .catalog-layout { grid-template-columns: 1fr; }
  .catalog-filters { display: none; }
  .stone-detail-layout { grid-template-columns: 1fr; }
  .wholesale-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; }
  .about-cta { flex-direction: column; }
}