/*
Theme Name: Serena Yoga
Theme URI: https://example.com/serena-yoga
Author: Serena Theme Studio
Author URI: https://example.com
Description: A premium, image-led yoga and wellness studio theme with editable homepage sections, logos, booking links, booking embeds, and custom CSS via the WordPress Customizer.
Version: 1.1.0
Requires at least: 6.0
Tested up to: 6.5
Requires PHP: 7.4
License: GPL-2.0-or-later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: serena-yoga
Tags: custom-logo, custom-colors, custom-menu, featured-images, one-column, threaded-comments, translation-ready
*/

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --forest: #1e3120;
  --forest-mid: #2a4230;
  --forest-light: #3a5c40;
  --cream: #f7f3ec;
  --cream-warm: #f0ebe0;
  --gold: #c9a96e;
  --gold-light: #e0c99a;
  --text-on-dark: rgba(247,243,236,0.92);
  --text-on-dark-mid: rgba(247,243,236,0.6);
  --text-on-dark-dim: rgba(247,243,236,0.35);
  --text-dark: #1e2a1f;
  --text-mid: #5a6b5b;
  --text-light: #8a9b8b;
  --font-serif: 'Fraunces', Georgia, serif;
  --font-sans: 'Jost', Arial, sans-serif;
}
html { scroll-behavior: smooth; }
body { background: var(--forest); color: var(--text-on-dark); font-family: var(--font-sans); font-weight: 300; overflow-x: hidden; }
img { max-width: 100%; height: auto; }
.fade { opacity: 0; transition: opacity 0.8s ease; }
.fade.d1 { transition-delay: 0.1s; }
.fade.d2 { transition-delay: 0.2s; }
.fade.d3 { transition-delay: 0.3s; }
.fade.d4 { transition-delay: 0.4s; }
.fade.visible { opacity: 1; }
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 52px; background: var(--forest);
  border-bottom: 1px solid rgba(247,243,236,0.08);
}
.nav-logo, .footer-logo { color: var(--text-on-dark); text-decoration: none; line-height: 1; display: flex; flex-direction: column; align-items: flex-start; gap: 2px; }
.nav-logo img, .footer-logo img { display: block; width: auto; object-fit: contain; }
.nav-logo img { max-width: min(220px, 42vw); max-height: 48px; }
.footer-logo img { max-width: min(260px, 70vw); max-height: 72px; }
.nav-logo-main, .footer-logo-main { font-family: 'Nativera', var(--font-serif); font-weight: 400; letter-spacing: 0.01em; }
.nav-logo-main { font-size: 21px; }
.footer-logo-main { font-size: 28px; }
.nav-logo-sub, .footer-logo-sub {
  font-family: var(--font-sans); font-size: 8px; font-weight: 500;
  letter-spacing: 0.36em; text-transform: uppercase; color: var(--gold-light); padding-left: 2px;
}
.nav-links { display: flex; gap: 40px; list-style: none; }
.nav-links a { text-decoration: none; color: var(--text-on-dark-mid); font-size: 12px; font-weight: 400; letter-spacing: 0.08em; text-transform: uppercase; transition: color 0.2s; }
.nav-links a:hover { color: var(--text-on-dark); }
.nav-cta, .btn-gold, .btn-ghost, .class-card-link, .blog-header a { text-decoration: none; }
.nav-cta { border: 1px solid var(--gold); color: var(--gold); padding: 9px 22px; border-radius: 2px; font-size: 11.5px; font-weight: 400; letter-spacing: 0.1em; text-transform: uppercase; transition: background 0.2s, color 0.2s; }
.nav-cta:hover { background: var(--gold); color: var(--forest); }
.hero { position: relative; min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 120px 40px 80px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center 30%; opacity: 0.22; }
.hero-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to bottom, rgba(30,49,32,0.3) 0%, rgba(30,49,32,0.7) 100%); }
.hero-content { position: relative; z-index: 2; max-width: 820px; }
.hero-tag, .eyebrow { font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase; display: block; }
.hero-tag { color: var(--gold); margin-bottom: 28px; opacity: 0; animation: fadeIn 1s 0.2s forwards; }
.hero-content h1 { font-family: var(--font-serif); font-size: clamp(56px, 9vw, 120px); font-weight: 300; line-height: 0.92; color: var(--text-on-dark); margin-bottom: 32px; opacity: 0; animation: fadeIn 1s 0.4s forwards; }
.hero-content h1 em, .section-dark h2 em, .cta-section h2 em, .blog-header-left h2 em { font-style: italic; color: var(--gold-light); }
.hero-content p { font-size: 15px; color: var(--text-on-dark-mid); line-height: 1.8; max-width: 420px; margin: 0 auto 44px; opacity: 0; animation: fadeIn 1s 0.6s forwards; }
.hero-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; opacity: 0; animation: fadeIn 1s 0.8s forwards; }
@keyframes fadeIn { to { opacity: 1; } from { opacity: 0; } }
.btn-gold { display: inline-block; background: var(--gold); color: var(--forest); padding: 15px 34px; border-radius: 2px; font-size: 12px; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; transition: background 0.2s, transform 0.15s; }
.btn-gold:hover { background: var(--gold-light); transform: translateY(-1px); }
.btn-ghost { display: inline-block; border: 1px solid var(--text-on-dark-dim); color: var(--text-on-dark); padding: 15px 34px; border-radius: 2px; font-size: 12px; font-weight: 400; letter-spacing: 0.1em; text-transform: uppercase; transition: border-color 0.2s, transform 0.15s; }
.btn-ghost:hover { border-color: var(--text-on-dark); transform: translateY(-1px); }
.hero-scroll { position: absolute; bottom: 36px; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 10px; opacity: 0; animation: fadeIn 1s 1.2s forwards; }
.hero-scroll span { font-size: 9px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--text-on-dark-dim); }
.hero-scroll-line { width: 1px; height: 40px; background: linear-gradient(to bottom, var(--text-on-dark-dim), transparent); }
.philosophy-wrap { background: var(--forest); padding: 100px 52px; }
.philosophy { padding: 100px 40px; display: grid; grid-template-columns: 1fr 1fr; gap: 80px; max-width: 1200px; margin: 0 auto; align-items: center; }
.philosophy-left { border-left: 1px solid var(--text-on-dark-dim); padding-left: 40px; }
.philosophy-left .eyebrow, .blog-header-left .eyebrow, .cta-rule em { color: var(--gold); }
.philosophy-left h2, .testimonials-header h2, .classes-header h2, .studio-text h2, .blog-header-left h2, .faq-header h2, .cta-section h2 { font-family: var(--font-serif); font-weight: 300; line-height: 1.1; }
.philosophy-left h2 { font-size: clamp(38px, 4vw, 58px); color: var(--text-on-dark); }
.philosophy-right p { font-size: 15px; color: var(--text-on-dark-mid); line-height: 1.9; margin-bottom: 20px; }
.philosophy-stat { margin-top: 40px; padding-top: 32px; border-top: 1px solid var(--text-on-dark-dim); display: flex; gap: 40px; }
.stat-num { font-family: var(--font-serif); font-size: 36px; font-weight: 300; color: var(--gold); line-height: 1; margin-bottom: 6px; }
.stat-label { font-size: 11px; color: var(--text-on-dark-dim); letter-spacing: 0.1em; text-transform: uppercase; }
.testimonials { background: var(--forest-mid); padding: 88px 0 100px; overflow: hidden; }
.testimonials-header { text-align: center; margin-bottom: 60px; padding: 0 40px; }
.gold-rule, .cta-rule { display: flex; align-items: center; justify-content: center; gap: 16px; margin-bottom: 24px; }
.gold-rule span, .cta-rule span { height: 1px; width: 60px; background: var(--gold); opacity: 0.4; }
.gold-rule em, .cta-rule em { font-family: var(--font-serif); font-style: italic; font-size: 13px; letter-spacing: 0.08em; }
.testimonials-header h2 { font-size: clamp(30px, 4vw, 48px); color: var(--text-on-dark); }
.testimonials-track-wrapper { overflow: hidden; padding: 20px 0 40px; }
.testimonials-track { display: flex; gap: 36px; width: max-content; align-items: center; animation: scrollLeft 42s linear infinite; padding: 0 36px; }
.testimonials-track:hover { animation-play-state: paused; }
@keyframes scrollLeft { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
.polaroid { background: #f8f5ef; padding: 12px 12px 52px; width: 240px; flex: 0 0 240px; box-shadow: 0 8px 32px rgba(0,0,0,0.35), 0 2px 8px rgba(0,0,0,0.2); position: relative; }
.polaroid:nth-child(odd) { transform: rotate(-2deg); }
.polaroid:nth-child(even) { transform: rotate(1.6deg); }
.polaroid:hover { transform: rotate(0deg) scale(1.04); z-index: 2; transition: transform 0.3s ease; box-shadow: 0 16px 48px rgba(0,0,0,0.45); }
.polaroid-img { width: 100%; aspect-ratio: 1 / 1; height: 200px; object-fit: cover; object-position: center; display: block; filter: saturate(0.88) brightness(0.96); background: #e8dfd1; }
.polaroid-caption { position: absolute; bottom: 0; left: 0; right: 0; padding: 10px 12px 14px; display: flex; flex-direction: column; gap: 4px; }
.polaroid-quote { font-family: var(--font-serif); font-style: italic; font-size: 12px; font-weight: 300; line-height: 1.5; color: #3a3028; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.polaroid-name { font-size: 9.5px; letter-spacing: 0.14em; text-transform: uppercase; color: #8a7a66; font-family: var(--font-sans); font-weight: 400; }
.classes, .faq { background: var(--cream); padding: 100px 40px; }
.classes-header, .faq-header { text-align: center; margin-bottom: 60px; }
.classes-header .eyebrow, .studio-text .eyebrow, .faq-header .eyebrow { color: var(--text-light); margin-bottom: 18px; }
.classes-header h2, .faq-header h2 { font-size: clamp(34px, 4vw, 52px); color: var(--text-dark); }
.classes-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; max-width: 1200px; margin: 0 auto; }
.class-card { position: relative; overflow: hidden; cursor: pointer; min-height: 440px; aspect-ratio: 4 / 5; background: var(--forest-mid); }
.class-card img { width: 100%; height: 100%; min-height: 440px; object-fit: cover; object-position: center; display: block; transition: transform 0.6s ease; filter: brightness(0.75); }
.class-card:hover img { transform: scale(1.04); filter: brightness(0.6); }
.class-card-overlay { position: absolute; inset: 0; padding: 32px; display: flex; flex-direction: column; justify-content: flex-end; background: linear-gradient(to top, rgba(30,49,32,0.85) 0%, transparent 50%); }
.class-card-name { font-family: var(--font-serif); font-size: 26px; font-weight: 300; color: #fff; line-height: 1.1; margin-bottom: 8px; }
.class-card-desc { font-size: 12.5px; color: rgba(255,255,255,0.7); line-height: 1.5; margin-bottom: 16px; max-width: 220px; }
.class-card-link { font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold-light); opacity: 0; transform: translateY(8px); transition: opacity 0.3s, transform 0.3s; }
.class-card:hover .class-card-link { opacity: 1; transform: translateY(0); }
.studio { background: var(--cream-warm); padding: 100px 40px; }
.studio-inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.studio-text h2 { font-size: clamp(34px, 3.5vw, 50px); color: var(--text-dark); margin-bottom: 24px; }
.studio-text p { font-size: 14.5px; color: var(--text-mid); line-height: 1.85; margin-bottom: 16px; }
.studio-text p:last-of-type { margin-bottom: 32px; }
.studio-images { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); grid-template-rows: minmax(0, 1fr) minmax(0, 1fr); gap: 8px; height: 520px; min-height: 360px; }
.studio-img-large { grid-row: span 2; overflow: hidden; border-radius: 4px; }
.studio-img-large img, .studio-img-small img { width: 100%; height: 100%; object-fit: cover; object-position: center; display: block; border-radius: 4px; }
.studio-img-small { overflow: hidden; border-radius: 4px; }
.blog { background: var(--forest); padding: 100px 40px; }
.blog-header { max-width: 1200px; margin: 0 auto 48px; display: flex; justify-content: space-between; align-items: flex-end; }
.blog-header-left h2 { font-size: clamp(30px, 3.5vw, 46px); color: var(--text-on-dark); }
.blog-header a { font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-on-dark-mid); border-bottom: 1px solid var(--text-on-dark-dim); padding-bottom: 3px; white-space: nowrap; transition: color 0.2s, border-color 0.2s; }
.blog-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 4px; max-width: 1200px; margin: 0 auto; }
.blog-main, .blog-side-post { position: relative; overflow: hidden; }
.blog-main { border-radius: 4px 0 0 4px; min-height: 500px; background: var(--forest-mid); }
.blog-main img { width: 100%; height: 500px; aspect-ratio: 6 / 5; object-fit: cover; object-position: center; display: block; filter: brightness(0.7); transition: transform 0.5s, filter 0.5s; }
.blog-main:hover img, .blog-side-post:hover img { transform: scale(1.03); filter: brightness(0.55); }
.blog-main-overlay, .blog-side-overlay { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: flex-end; background: linear-gradient(to top, rgba(30,49,32,0.9) 0%, transparent 55%); }
.blog-main-overlay { padding: 36px; }
.blog-side-overlay { padding: 24px; }
.blog-tag { font-size: 9.5px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--gold); margin-bottom: 10px; display: block; }
.blog-main-title, .blog-side-title { font-family: var(--font-serif); font-weight: 300; color: #fff; line-height: 1.2; }
.blog-main-title { font-size: 28px; margin-bottom: 10px; }
.blog-main-excerpt { font-size: 13px; color: rgba(255,255,255,0.65); line-height: 1.7; }
.blog-side { display: flex; flex-direction: column; gap: 4px; }
.blog-side-post { flex: 1; min-height: 248px; background: var(--forest-mid); }
.blog-side-post img { width: 100%; height: 100%; min-height: 248px; aspect-ratio: 16 / 9; object-fit: cover; object-position: center; display: block; filter: brightness(0.6); transition: transform 0.5s, filter 0.5s; }
.blog-side-title { font-size: 20px; }
.faq-inner { max-width: 720px; margin: 0 auto; }
.faq-item { border-top: 1px solid rgba(30,49,32,0.1); }
.faq-item:last-child { border-bottom: 1px solid rgba(30,49,32,0.1); }
.faq-question { display: flex; justify-content: space-between; align-items: center; width: 100%; padding: 22px 0; cursor: pointer; font-size: 14px; font-weight: 400; color: var(--text-dark); transition: color 0.2s; letter-spacing: 0.01em; user-select: none; background: none; border: 0; font-family: inherit; text-align: left; }
.faq-icon { font-size: 20px; color: var(--text-light); flex-shrink: 0; margin-left: 20px; transition: transform 0.35s, color 0.2s; line-height: 1; }
.faq-item.open .faq-icon { transform: rotate(45deg); color: var(--forest); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; font-size: 13.5px; color: var(--text-mid); line-height: 1.85; }
.faq-item.open .faq-answer { max-height: 260px; padding-bottom: 22px; }
.booking { background: var(--cream-warm); padding: 92px 40px; color: var(--text-dark); }
.booking-inner { max-width: 980px; margin: 0 auto; text-align: center; }
.booking h2 { font-family: var(--font-serif); font-size: clamp(34px, 4vw, 54px); font-weight: 300; line-height: 1.1; margin-bottom: 18px; }
.booking p { max-width: 620px; margin: 0 auto 28px; color: var(--text-mid); line-height: 1.8; }
.booking-frame { margin-top: 34px; overflow: hidden; border-radius: 4px; background: #fff; box-shadow: 0 18px 52px rgba(30,49,32,0.12); }
.booking-frame iframe { display: block; width: 100%; min-height: 680px; border: 0; }
.booking-frame > * { max-width: 100%; }
.cta-section { background: var(--forest-mid); padding: 110px 40px; text-align: center; position: relative; overflow: hidden; }
.cta-bg { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: 0.12; }
.cta-content { position: relative; z-index: 1; }
.cta-section h2 { font-size: clamp(44px, 7vw, 88px); line-height: 1.0; color: var(--text-on-dark); margin-bottom: 44px; }
.site-footer { background: var(--forest); border-top: 1px solid rgba(247,243,236,0.07); padding: 72px 52px 44px; }
.footer-top { max-width: 1200px; margin: 0 auto 60px; display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 60px; }
.footer-brand p { font-size: 13px; color: var(--text-on-dark-mid); line-height: 1.75; margin: 18px 0 24px; max-width: 280px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a { width: 34px; height: 34px; border: 1px solid rgba(247,243,236,0.12); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--text-on-dark-mid); transition: all 0.2s; }
.footer-social a:hover { border-color: var(--gold); color: var(--gold); }
.footer-col h4 { font-size: 9.5px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--gold); margin-bottom: 22px; font-weight: 400; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 12px; }
.footer-col a { text-decoration: none; color: var(--text-on-dark-mid); font-size: 13px; transition: color 0.2s; }
.footer-col a:hover { color: var(--text-on-dark); }
.footer-newsletter p { font-size: 13px; color: var(--text-on-dark-mid); margin-bottom: 16px; line-height: 1.65; }
.footer-newsletter-form { display: flex; }
.footer-newsletter-form input { flex: 1; padding: 11px 14px; border: 1px solid rgba(247,243,236,0.12); border-right: none; border-radius: 2px 0 0 2px; background: rgba(247,243,236,0.04); font-family: var(--font-sans); font-size: 13px; color: var(--text-on-dark); outline: none; }
.footer-newsletter-form button { background: var(--gold); color: var(--forest); border: none; padding: 11px 18px; border-radius: 0 2px 2px 0; cursor: pointer; font-size: 11px; font-family: var(--font-sans); font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; }
.footer-bottom { max-width: 1200px; margin: 0 auto; padding-top: 28px; border-top: 1px solid rgba(247,243,236,0.07); display: flex; justify-content: space-between; align-items: center; }
.footer-bottom span, .footer-bottom a { font-size: 11px; color: var(--text-on-dark-dim); text-decoration: none; }
.content-page { background: var(--cream); color: var(--text-dark); padding: 140px 40px 90px; min-height: 70vh; }
.page-hero { position: relative; min-height: 58vh; padding: 150px 40px 72px; display: flex; align-items: flex-end; overflow: hidden; background: var(--forest); }
.page-hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: 0.24; }
.page-hero::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(30,49,32,0.86), rgba(30,49,32,0.18)); }
.page-hero-inner { position: relative; z-index: 1; width: min(1120px, 100%); margin: 0 auto; }
.page-hero h1 { font-family: var(--font-serif); font-size: clamp(48px, 8vw, 96px); font-weight: 300; line-height: 0.95; max-width: 780px; }
.page-hero p { max-width: 520px; margin-top: 24px; color: var(--text-on-dark-mid); line-height: 1.8; }
.serena-section { padding: 92px 40px; }
.serena-inner { width: min(1120px, 100%); margin: 0 auto; }
.serena-two-col { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 64px; align-items: center; }
.serena-copy h2 { font-family: var(--font-serif); font-size: clamp(34px, 4vw, 56px); font-weight: 300; line-height: 1.08; margin-bottom: 24px; color: var(--text-dark); }
.serena-copy p { color: var(--text-mid); line-height: 1.85; margin-bottom: 18px; }
.serena-image { border-radius: 4px; overflow: hidden; aspect-ratio: 4 / 3; background: var(--cream-warm); }
.serena-image img { width: 100%; height: 100%; object-fit: cover; object-position: center; display: block; }
.serena-band-dark { background: var(--forest); color: var(--text-on-dark); }
.serena-band-dark .serena-copy h2 { color: var(--text-on-dark); }
.serena-band-dark .serena-copy p { color: var(--text-on-dark-mid); }
.serena-card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.serena-info-card { background: rgba(30,49,32,0.04); border: 1px solid rgba(30,49,32,0.08); border-radius: 4px; padding: 28px; }
.serena-info-card h3 { font-family: var(--font-serif); font-size: 24px; font-weight: 300; margin-bottom: 12px; color: var(--text-dark); }
.serena-info-card p { color: var(--text-mid); line-height: 1.75; }
.contact-panel { background: var(--cream-warm); border-radius: 4px; padding: 34px; }
.contact-panel p { color: var(--text-mid); line-height: 1.8; margin-bottom: 14px; }
.post-list { display: grid; gap: 28px; }
.post-card { padding-bottom: 28px; border-bottom: 1px solid rgba(30,49,32,0.12); }
.post-card h2 { font-family: var(--font-serif); font-size: clamp(28px, 4vw, 44px); font-weight: 300; margin-bottom: 12px; }
.post-card h2 a { color: var(--text-dark); text-decoration: none; }
.post-card p { color: var(--text-mid); line-height: 1.8; }
.post-meta { font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-light); margin-bottom: 12px; }
.single-content { font-size: 16px; }
.single-content > * + * { margin-top: 1.1em; }
.content-page-inner { max-width: 820px; margin: 0 auto; line-height: 1.8; }
.content-page h1 { font-family: var(--font-serif); font-size: clamp(38px, 5vw, 68px); font-weight: 300; margin-bottom: 24px; }
@media (max-width: 1000px) {
  .site-nav { padding: 18px 24px; }
  .nav-links { display: none; }
  .philosophy { grid-template-columns: 1fr; gap: 40px; padding: 70px 24px; }
  .philosophy-left { border-left: none; border-top: 1px solid var(--text-on-dark-dim); padding-left: 0; padding-top: 32px; }
  .classes-grid { grid-template-columns: 1fr 1fr; }
  .studio-inner, .blog-grid { grid-template-columns: 1fr; }
  .studio-images { height: 340px; }
  .blog-main img { height: 340px; }
  .blog-main { min-height: 340px; }
  .serena-two-col { grid-template-columns: 1fr; gap: 40px; }
  .serena-card-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .classes, .studio, .blog, .faq, .booking, .cta-section { padding: 70px 24px; }
  .testimonials { padding: 70px 0; }
}
@media (max-width: 640px) {
  .classes-grid, .footer-top { grid-template-columns: 1fr; }
  .hero-content h1 { font-size: 54px; }
  .site-nav { gap: 18px; }
  .nav-cta { padding: 9px 14px; font-size: 10px; }
  .page-hero { min-height: 48vh; padding: 128px 24px 58px; }
  .serena-section { padding: 68px 24px; }
}