/* Battery Essentials Grün: the single source for every brand accent. */
:root { --battery-essentials-green: #29b99b; --page-background: #F5F5F7; --page-tint: color-mix(in srgb, var(--battery-essentials-green) 8%, var(--page-background)); --accent: var(--battery-essentials-green); }
.brand-filter-definitions { position: absolute; width: 0; height: 0; overflow: hidden; pointer-events: none; }
.brand-filter-definitions feFlood { flood-color: var(--battery-essentials-green); }
.proof-logo img, .header-logo, .logo-link img, .footer .text-wrapper img, .be-consent-logo { filter: url(#be-brand-ink); }
.steps-image, .personal-plan-icon, .commercial-plan-icon, .extended-plan-icon, .faq-section-illustration, .business-growth-section-illustration[src$=".svg"], .asterix-icon, .icon.asterix { filter: url(#be-brand-accents); }
.proof-intro h2 span { color: var(--battery-essentials-green); }
.battery-hero h1 .hero-span { color: var(--battery-essentials-green); }
.proof-toggle, .battery-controls button { color: var(--battery-essentials-green); border-color: var(--battery-essentials-green); }
.proof-toggle:hover, .battery-controls button:hover { color: #fff; background: var(--battery-essentials-green); }
.button:hover, .small-button:hover { transform: translateY(-2px); }
.button:focus-visible, .small-button:focus-visible { outline-color: var(--battery-essentials-green); }

a { color: var(--battery-essentials-green); }
.bar-1-middle { background-color: var(--battery-essentials-green); }

/* A continuous, quiet brand-green wash across every light section. */
html { background: var(--page-background); }
body, body.body {
  background-color: var(--page-background);
  background-image: linear-gradient(125deg, var(--page-tint) 0%, color-mix(in srgb, var(--battery-essentials-green) 3%, var(--page-background)) 48%, var(--page-background) 85%);
  background-attachment: fixed;
}
.header, .footer,
.section, .section.how-it-works-section, .section.reviews-section,
.section._404-section, .section.battery-hero,
.about-me-section, .about-me-section.how-it-works-section,
.about-me-section._404-section {
  background-color: transparent;
}

/* Floating glass navigation: centered links, brand left, actions right. */
.header { border: 0; background: transparent; box-shadow: none; }
.header .container { width: 100%; box-sizing: border-box; max-width: none; padding-left: 4.5%; padding-right: 4.5%; }
.header .navigation-wrapper { padding: 24px 0; }
.header .navigation { grid-template-columns: minmax(200px, 1fr) auto minmax(200px, 1fr); gap: 20px; align-items: center; }
.header .navigation-right { display: contents; }
.header .navigation-menu { justify-content: center; gap: 10px; }
.header-actions { display: flex; align-items: center; justify-content: flex-end; gap: 10px; }
.header .navigation-menu .navigation-link,
.header .language-switch,
.header .mobile-menu-toggle {
  border: 1px solid #ffffffb3; border-radius: 999px;
  background: linear-gradient(145deg, #ffffff80, #e5e5ea50);
  box-shadow: inset 0 1px 1px #fff, inset 0 -1px 1px #ffffff80, 0 3px 12px #20283008;
  -webkit-backdrop-filter: blur(18px) saturate(140%); backdrop-filter: blur(18px) saturate(140%);
}
.header .navigation-menu .navigation-link { display: flex; min-height: 48px; padding: 0 22px; align-items: center; justify-content: center; font-size: 14px; white-space: nowrap; transition: background .2s, box-shadow .2s; }
.header .navigation-menu .navigation-link:hover { background: #ffffffb3; box-shadow: inset 0 1px 1px #fff, 0 4px 16px #2028300d; }
.header .navigation-menu .cc-hidden { display: none; }
.header .navigation-menu .link-text { transform: none !important; }
.header .language-switch { min-height: 48px; padding: 0 8px; gap: 0; }
.header .language-switch-link { min-width: 30px; min-height: 44px; padding: 0 4px; font-size: 13px; border-radius: 999px; }
.header .language-switch-divider { flex: none; height: auto; margin: 0 2px; color: #b2b5ba; background: none; font: 400 13px/1 Inter, sans-serif; }
.header .header-purchase { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 28px; border: 1px solid var(--battery-essentials-green); border-radius: 999px; background: var(--battery-essentials-green); color: #fff; font: 600 14px/1 Inter, sans-serif; box-shadow: 0 3px 14px #20283009; }
.header .header-purchase:hover { box-shadow: 0 5px 18px #20283014; }
@media (min-width: 992px) and (max-width: 1199px) {
  .header .navigation { grid-template-columns: minmax(160px, 1fr) auto minmax(160px, 1fr); gap: 12px; }
  .header .header-logo { width: 160px; }
  .header .navigation-menu { gap: 6px; }
  .header .navigation-menu .navigation-link { padding: 0 14px; font-size: 13px; }
  .header .header-purchase { padding: 0 20px; }
}
@media (max-width: 991px) {
  .header .navigation { grid-template-columns: minmax(0, 1fr) auto; gap: 12px; }
  .header .navigation-menu { display: none; }
  .header .navigation-wrapper { padding: 18px 0; }
  .header .mobile-menu-toggle { display: flex; align-items: center; justify-content: center; width: 46px; height: 46px; order: -1; }
  .header .burger-menu { width: 22px; height: 20px; }
  .header .mobile-menu { background: #f5f5f7ed; -webkit-backdrop-filter: blur(24px); backdrop-filter: blur(24px); border-bottom: 1px solid #fff; }
  .header .mobile-menu-link { color: #222831; }
  .header .mobile-menu-link:hover { color: var(--battery-essentials-green); }
}
@media (max-width: 600px) {
  .header .container { padding-left: 14px; padding-right: 14px; }
  .header .navigation { gap: 8px; }
  .header .header-logo { width: 124px; }
  .header-actions { gap: 6px; }
  .header .header-purchase { min-height: 40px; padding: 0 14px; font-size: 12px; }
  .header .language-switch { min-height: 40px; padding: 0 3px; }
  .header .language-switch-link { min-height: 38px; min-width: 25px; font-size: 11px; padding: 0 2px; }
  .header .mobile-menu-toggle { width: 34px; height: 40px; }
  .header .burger-menu { width: 18px; }
}
@media (max-width: 359px) {
  .header .header-logo { width: 98px; }
  .header .header-purchase { padding: 0 10px; }
  .header-actions { gap: 4px; }
}
@media (max-width: 991px) {
  .header .burger-menu .top-bar, .header .burger-menu .middle-bar, .header .burger-menu .bottom-bar { width: 100%; }
}
.header .navigation-menu .link-text { color: #222831 !important; opacity: 1 !important; }

/* Hero actions inspired by the rounded label-and-arrow reference. */
.battery-hero .hero-buttons-wrapper { display: flex; flex-direction: row; flex-wrap: wrap; gap: 14px; }
.battery-hero .hero-buttons-wrapper .hero-cta {
  display: inline-flex; align-items: center; justify-content: space-between; gap: 20px;
  width: auto; min-height: 62px; padding: 8px 8px 8px 25px; border: 0; border-radius: 999px;
  font: 500 15px/1.2 Inter, Arial, sans-serif; text-decoration: none;
  box-shadow: 0 4px 16px #20283008; transition: transform .2s, box-shadow .2s;
}
.battery-hero .hero-buttons-wrapper .hero-cta-learn { background: #fff; color: #444; }
.battery-hero .hero-buttons-wrapper .hero-cta-buy { background: var(--battery-essentials-green); color: #fff; }
.hero-cta-icon { display: flex; align-items: center; justify-content: center; flex: 0 0 44px; width: 44px; height: 44px; border-radius: 50%; }
.hero-cta-learn .hero-cta-icon { background: var(--battery-essentials-green); color: #fff; }
.hero-cta-buy .hero-cta-icon { border: 1px solid #ffffff80; }
.hero-cta-icon svg { width: 20px; height: 20px; }
.battery-hero .hero-buttons-wrapper .hero-cta:hover { transform: translateY(-2px); box-shadow: 0 7px 20px #20283014; }
@media (max-width: 479px) {
 .battery-hero .hero-buttons-wrapper { gap: 10px; }
 .battery-hero .hero-buttons-wrapper .hero-cta { min-height: 52px; padding: 7px 7px 7px 16px; gap: 10px; font-size: 13px; }
 .hero-cta-icon { flex-basis: 36px; width: 36px; height: 36px; }
 .hero-cta-icon svg { width: 17px; height: 17px; }
}
@media (max-width: 359px) {
 .battery-hero .hero-buttons-wrapper .hero-cta { padding-left: 12px; gap: 6px; font-size: 12px; }
 .hero-cta-icon { flex-basis: 30px; width: 30px; height: 30px; }
}

/* Technical cards introduce the learning challenges. */
.section.before-section { padding: 100px 0 112px; scroll-margin-top: 96px; }
.before-section h2 { margin: 0 0 48px; color: #222831; font: 600 clamp(34px, 4vw, 58px)/1.1 Inter, sans-serif; letter-spacing: -.045em; }
.before-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.before-card { position: relative; min-width: 0; padding: 28px 25px 32px; border: 1px solid #ffffffd9; border-radius: 28px; background: linear-gradient(150deg, #ffffffed, #ffffff80); box-shadow: 0 12px 36px #172a3005, inset 0 1px 0 #fff; transition: transform .35s, box-shadow .35s; }
.before-card:hover { transform: translateY(-7px); box-shadow: 0 22px 45px #172a300d; }
.before-card-top { display: flex; align-items: flex-start; justify-content: space-between; height: 125px; }
.before-number { display: inline-flex; width: 32px; height: 32px; align-items: center; justify-content: center; border: 1px solid #22283114; border-radius: 50%; font: 500 11px/1 Inter, sans-serif; color: #7a8388; }
.before-icon { width: 106px; height: 106px; color: var(--battery-essentials-green); transition: transform .5s; }
.before-card:hover .before-icon { transform: translateY(-3px) rotate(-3deg); }
.before-card h3 { max-width: 230px; margin: 0 0 20px; color: #222831; font: 600 23px/1.18 Inter, sans-serif; letter-spacing: -.035em; }
.before-card p { margin: 0; color: #586168; font: 400 15px/1.7 Inter, sans-serif; }
.before-pending:not(.before-visible) .before-card { opacity: 0; transform: translateY(28px); }
.before-visible .before-card { animation: before-arrive .75s cubic-bezier(.2,.7,.2,1) backwards; animation-delay: calc(var(--card-index) * 100ms); }
@keyframes before-arrive { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 1100px) { .before-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; } .before-card h3 { max-width: none; } }
@media (max-width: 600px) {
 .section.before-section { padding: 60px 0 64px; scroll-margin-top: 80px; }
 .before-section h2 { margin-bottom: 30px; }
 .before-grid { grid-template-columns: minmax(0, 1fr); gap: 16px; }
 .before-card { padding: 24px; border-radius: 24px; }
 .before-card-top { height: 100px; }
 .before-icon { width: 86px; height: 86px; }
 .before-card h3 { font-size: 23px; margin-bottom: 14px; }
}
@media (prefers-reduced-motion: reduce) {
 .before-section .before-card { animation: none; opacity: 1; transform: none; transition: none; }
 .before-icon, .before-card:hover .before-icon { transform: none; transition: none; }
}

@media (min-width: 1101px) { .before-card h3 { min-height: 55px; } }

/* Center the section title at every size and emphasize the brand. */
.before-section h2 { text-align: center; color: #222831; }
.before-section h2 span { color: var(--battery-essentials-green); }
.before-card h3 { max-width: none; font-size: 28px; line-height: 1.15; }
@media (min-width: 1101px) { .before-card h3 { min-height: 97px; } }
@media (max-width: 600px) { .before-card h3 { font-size: 27px; } }

/* Override the legacy mobile container row: title always above the cards. */
.before-section > .container { display: block; }
.before-section #before-title, .before-section .before-grid { width: 100%; min-width: 0; }

/* Three cards above two on desktop; smaller screens retain their own grid. */
.before-section #before-title { margin-bottom: 16px; }
.before-section .before-subtitle { margin: 0 0 48px; text-align: center; color: #586168; font: 400 clamp(17px, 1.6vw, 21px)/1.5 Inter, sans-serif; }
@media (max-width: 600px) { .before-section .before-subtitle { margin-bottom: 30px; } }

/* A floating glass sheet for compact navigation. */
.header .glass-menu-toggle { display: none; cursor: pointer; position: relative; color: #222831; }
@media (max-width: 991px) {
 .header .glass-menu-toggle { display: flex; flex-direction: column; gap: 5px; padding: 8px; }
 .glass-menu-toggle span { display: block; width: 18px; height: 1.5px; background: currentColor; transition: transform .3s; }
 .glass-menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.25px) rotate(45deg); }
 .glass-menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.25px) rotate(-45deg); }
 .header .mobile-menu { position: absolute; inset: calc(100% - 4px) 14px auto; width: auto; max-height: calc(100dvh - 100px); overflow-y: auto; border: 1px solid #ffffffd9; border-radius: 28px; background: linear-gradient(135deg,#ffffffc9,#f5f5f79e); box-shadow: inset 0 1px 1px #fff,0 24px 60px #172a301a; backdrop-filter: blur(30px) saturate(150%); -webkit-backdrop-filter: blur(30px) saturate(150%); }
 .header .mobile-menu:not([hidden]) { display: block; animation: glass-menu-in .3s cubic-bezier(.2,.7,.2,1); }
 .header .mobile-menu[hidden] { display: none !important; }
 .header .mobile-menu-wrapper { padding: 14px; }
 .header .mobile-menu-navigation { gap: 8px; align-items: stretch; }
 .header .mobile-menu-link { width: 100%; min-height: 62px; padding: 16px 18px; align-items: center; justify-content: space-between; border: 1px solid #ffffffb0; border-radius: 18px; background: linear-gradient(130deg,#ffffff85,#ffffff25); box-shadow: inset 0 1px #fff; }
 .header .mobile-menu-link .heading { margin: 0; color: #222831; font: 500 20px/1.25 Inter,sans-serif; letter-spacing: -.025em; }
 .header .mobile-menu-link:after { content: '↗'; color: var(--battery-essentials-green); font: 400 23px/1 Inter,sans-serif; }
 .header .mobile-menu-link:hover { background: #fff; }
 .header .mobile-divider-line { height: 0; margin: 2px; background: transparent; }
 .header .mobile-menu .small-button { border: 1px solid #fff; border-radius: 999px; background: #fff; color: var(--battery-essentials-green); padding: 18px; font: 600 16px/1.2 Inter,sans-serif; text-align: center; }
}
.glass-menu-toggle:focus-visible,.mobile-menu a:focus-visible { outline: 2px solid var(--battery-essentials-green); outline-offset: 3px; }
@keyframes glass-menu-in { from { opacity: 0; transform: translateY(-10px) scale(.98); } to { opacity: 1; transform: none; } }

/* Floating learning objects, with independent object and copy reveals. */
#Probleme-2.methods-section { display: block; padding: 30px 0 120px; scroll-margin-top: 115px; }
.methods-section h2 { margin: 0 0 16px; text-align: center; color: #222831; font: 600 clamp(32px,4vw,54px)/1.12 Inter,sans-serif; letter-spacing: -.045em; }
.methods-subtitle { margin: 0 0 45px; text-align: center; color: #586168; font: 400 clamp(17px,1.6vw,21px)/1.5 Inter,sans-serif; }
.methods-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 48px; }
.method-item { min-width: 0; --reveal-delay: calc(var(--method-index) * .45s); }
.method-stage { position: relative; height: 340px; display: grid; place-items: center; perspective: 1100px; }
.method-object { position: relative; z-index: 1; }
.method-shadow { position: absolute; bottom: 22px; width: 145px; height: 15px; border-radius: 50%; background: #263a4321; filter: blur(12px); }
.method-copy { max-width: 360px; margin: 15px auto 0; text-align: center; }
.method-copy h3 { margin: 0 0 18px; color: #222831; font: 600 27px/1.2 Inter,sans-serif; letter-spacing: -.035em; }
.method-copy p { margin: 0; color: #586168; font: 400 16px/1.7 Inter,sans-serif; }
.method-book { width: 162px; height: 217px; position: relative; transform: rotateX(15deg) rotateY(-24deg) rotateZ(-10deg); transform-style: preserve-3d; }
.book-pages { position: absolute; inset: 3px -7px -5px 5px; padding: 24px 18px; border-radius: 2px 7px 7px 2px; background: repeating-linear-gradient(0deg,#e5e6e6 0 1px,#fff 1px 4px); box-shadow: 8px 12px 20px #172a3020; border: 1px solid #d2d7d7; }
.book-pages:before { content:''; position:absolute; inset: 0 6px 7px 0; background: #fff; border-radius: 2px 6px 6px 2px; }
.book-pages span { display: block; position: relative; width: 80%; height: 3px; background: #d2d9dc; margin-bottom: 8px; }
.book-pages svg { position: relative; margin-top: 12px; fill: none; stroke: var(--battery-essentials-green); stroke-width: 1.4; }
.book-cover { position: absolute; inset: 0; padding: 23px 17px; border-radius: 3px 7px 7px 3px; border-left: 7px solid #333e47; background: linear-gradient(120deg,#56616c,#232b34); box-shadow: inset 0 1px 1px #ffffff66,3px 4px 9px #0002; transform-origin: left center; transform: rotateY(-48deg); backface-visibility: hidden; color: #fff; }
.book-cover span { font: 500 19px/1.1 Inter,sans-serif; letter-spacing: -.03em; }
.book-cover svg { display: block; height: 98px; width: 70px; margin: 8px auto; fill: none; stroke: var(--battery-essentials-green); stroke-width: 1.5; }
.book-cover small { font: 400 5px/1 Inter,sans-serif; letter-spacing: .16em; opacity: .7; }
.method-paper { width: 180px; height: 239px; padding: 19px; border: 1px solid #fff; background: linear-gradient(125deg,#fff,#f2f4f4); border-radius: 3px 12px 3px 3px; box-shadow: 5px 7px 0 -2px #e2e6e7,9px 12px 0 -4px #f9fafa,15px 20px 30px #172a3014; transform: rotateX(12deg) rotateY(-16deg) rotateZ(9deg); }
.paper-journal { display: block; font: 500 5px/1 Inter,sans-serif; letter-spacing: .1em; color: #68767a; }
.method-paper strong { display: block; margin: 13px 0; color: #222831; font: 600 13px/1.2 Inter,sans-serif; }
.paper-rule { height: 2px; background: var(--battery-essentials-green); margin-bottom: 12px; }
.paper-columns { display: flex; gap: 8px; height: 37px; }
.paper-columns div { flex: 1; background: repeating-linear-gradient(0deg,transparent 0 4px,#cdd5d8 4px 5px); }
.paper-columns.short { height: 20px; }
.method-paper svg { width: 100%; height: 65px; fill: none; stroke: var(--battery-essentials-green); stroke-width: 2; }
.method-paper .plot-grid { stroke: #d3dcde; stroke-width: .7; }
.method-paper .plot-secondary { stroke: #849498; stroke-width: 1; }
.method-paper small { display:block; margin-top:10px; color:#859295; font:400 4px/1 Inter,sans-serif; letter-spacing:.1em; }
.method-tube { width: 158px; height: 274px; transform: rotate(19deg); color: var(--battery-essentials-green); filter: drop-shadow(12px 15px 12px #172a3010); }
.method-tube svg { width: 100%; height: 100%; }
.methods-ready .method-item:not(.method-visible) .method-object,.methods-ready .method-item:not(.method-visible) .method-copy,.methods-ready .method-item:not(.method-visible) .method-shadow { opacity: 0; }
.method-visible .method-object { animation: object-arrive 1.1s var(--reveal-delay) both, object-float 6s calc(var(--reveal-delay) + 1.1s) ease-in-out infinite; }
.method-visible .method-copy { animation: copy-arrive 1s calc(var(--reveal-delay) + .55s) both; }
.method-visible .method-shadow { animation: copy-arrive 1s var(--reveal-delay) both; }
.method-visible .book-cover { animation: book-open 2s calc(var(--reveal-delay) + .35s) both; }
.method-item:not(.method-onscreen) .method-object { animation-play-state: paused; }
@keyframes object-arrive { from { opacity:0; transform:translateY(35px) rotate(-6deg) scale(.92); } to { opacity:1; transform:translateY(0) rotate(0) scale(1); } }
@keyframes object-float { 0%,100% { transform:translateY(0) rotate(-1deg); } 50% { transform:translateY(-14px) rotate(2deg); } }
@keyframes copy-arrive { from { opacity:0; transform:translateY(14px); } to { opacity:1; transform:translateY(0); } }
@keyframes book-open { from { transform:rotateY(0); } to { transform:rotateY(-48deg); } }
@media(max-width:991px) { .methods-grid { gap: 20px; } .method-copy h3 { font-size:23px; } .method-copy p { font-size:15px; } }
@media(max-width:700px) { #Probleme-2.methods-section { padding: 20px 0 70px; } .methods-grid { grid-template-columns:1fr; gap:50px; } .methods-subtitle { margin-bottom: 12px; } .method-item { --reveal-delay:0s; } .method-stage { height: 305px; } .method-copy { margin-top:0; } }
@media(prefers-reduced-motion:reduce) { .methods-section .method-object,.methods-section .method-copy,.methods-section .method-shadow,.methods-section .book-cover,.header .mobile-menu { animation:none!important; opacity:1!important; } .glass-menu-toggle span { transition:none; } }

/* A calm, positive counterpart to the challenges above. */
.section.after-section { padding: 0 0 100px; scroll-margin-top: 110px; }
.after-section > .after-panel { display: block; padding: 72px 38px 50px; border-radius: 36px; background: linear-gradient(145deg,#ffffff65,#ffffff20); border: 1px solid #ffffffb3; }
.after-section h2 { margin: 0 0 16px; color: #222831; text-align: center; font: 600 clamp(34px,4vw,58px)/1.1 Inter,sans-serif; letter-spacing: -.045em; }
.after-section h2 span { color: var(--battery-essentials-green); }
.after-subtitle { margin: 0 0 64px; color: #586168; text-align: center; font: 400 clamp(17px,1.6vw,21px)/1.5 Inter,sans-serif; }
.after-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); align-items: stretch; gap: 22px; }
.after-card { padding: 34px 30px 40px; border: 1px solid #fff; border-radius: 28px; background: #ffffffdb; box-shadow: 0 12px 36px #172a3005; transition: transform .35s, box-shadow .35s; }
.after-card:nth-child(2) { background: color-mix(in srgb,var(--battery-essentials-green) 10%,#fff); transform: translateY(-16px); }
.after-card:hover { transform: translateY(-7px); box-shadow: 0 20px 40px #172a300c; }
.after-card:nth-child(2):hover { transform: translateY(-23px); }
.after-icon { width: 66px; height: 66px; display: grid; place-items: center; margin-bottom: 52px; border-radius: 50%; background: color-mix(in srgb,var(--battery-essentials-green) 7%,#fff); color: var(--battery-essentials-green); }
.after-card:nth-child(2) .after-icon { background: #ffffffa6; }
.after-icon svg { width: 38px; height: 38px; }
.after-card h3 { margin: 0 0 24px; color: #222831; font: 600 clamp(24px,2.2vw,30px)/1.16 Inter,sans-serif; letter-spacing: -.035em; }
.after-card p { margin: 0; color: #586168; font: 400 16px/1.7 Inter,sans-serif; }
.after-pending .after-card:not(.after-visible) { opacity: 0; }
.after-card.after-visible { animation: after-arrive .8s calc(var(--card-index) * .12s) backwards; }
@keyframes after-arrive { from { opacity: 0; translate: 0 22px; } to { opacity: 1; translate: 0 0; } }
@media(max-width:991px) { .after-section > .after-panel { padding: 50px 24px 30px; } .after-grid { gap: 14px; } .after-card { padding: 26px 20px 32px; } .after-card p { font-size: 15px; } }
@media(max-width:760px) { .section.after-section { padding-bottom: 60px; } .after-section > .after-panel { padding: 40px 18px 20px; border-radius: 28px; } .after-subtitle { margin-bottom: 30px; } .after-grid { grid-template-columns: 1fr; gap: 16px; } .after-card { padding: 28px; border-radius: 24px; } .after-card:nth-child(2),.after-card:nth-child(2):hover { transform: none; } .after-icon { margin-bottom: 28px; } .after-card h3 { font-size: 27px; } }
@media(prefers-reduced-motion:reduce) { .after-section .after-card { animation: none; opacity: 1; transition: none; } .after-card:hover { transform: none; } }

/* Four alternatives, including a floating lecture board. */
.after-section #after-title { margin-bottom: 64px; }
.methods-section #methods-title { margin-bottom: 44px; }
.methods-grid { grid-template-columns: repeat(4,minmax(0,1fr)); gap: 30px; }
.methods-grid .method-copy h3 { font-size: 25px; }
.method-board { width: 210px; height: 225px; position: relative; transform: rotateY(-16deg) rotateZ(-5deg); }
.board-frame { position: relative; z-index: 1; padding: 19px; height: 154px; border: 6px solid #d2d8da; border-radius: 8px; background: linear-gradient(125deg,#37434a,#202a31); box-shadow: inset 0 2px 8px #0003,7px 12px 20px #172a3015; }
.board-frame span { color: #fff; font: 400 17px/1.1 Inter,sans-serif; letter-spacing: .04em; }
.board-frame svg { width: 100%; height: 85px; stroke-width: 1.7; }
.board-axis,.board-chalk { stroke: #ffffffb0; }
.board-graph { stroke: var(--battery-essentials-green); stroke-dasharray: 220; stroke-dashoffset: 0; }
.method-visible .board-graph { animation: board-draw 2.4s calc(var(--reveal-delay) + .7s) backwards; }
.board-frame i { position: absolute; right: 13px; bottom: 2px; width: 18px; height: 3px; background: #fff; border-radius: 2px; }
.board-leg { position: absolute; top: 148px; width: 7px; height: 72px; background: linear-gradient(90deg,#bfc8cc,#fff); transform-origin: top; }
.board-leg.left { left: 43px; transform: rotate(13deg); }
.board-leg.right { right: 43px; transform: rotate(-13deg); }
@keyframes board-draw { from { stroke-dashoffset: 220; } to { stroke-dashoffset: 0; } }
@media(max-width:1199px) { .methods-grid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 50px 38px; } }
@media(max-width:700px) { .methods-grid { grid-template-columns: 1fr; gap: 50px; } .after-section #after-title { margin-bottom: 34px; } }

/* Spacious course highlights, with the closed 3D box in the first card. */
.package-section { --package-pin-top: clamp(120px,11svh,160px); position: relative; margin: 60px 0 120px; padding: 0; scroll-margin-top: var(--package-pin-top); }
.package-feature-story { position: relative; }
.package-content.container { display: block; width: 88%; max-width: 1600px; min-width: 0; }
.package-section h2 { margin: 0 0 clamp(44px,5svh,72px); color: #222831; text-align: center; font: 600 clamp(44px,4.4vw,76px)/1.08 Inter,sans-serif; letter-spacing: -.045em; }
.package-cards { display: grid; gap: 32px; }
.package-card { box-sizing: border-box; display: grid; grid-template-columns: minmax(0,.85fr) minmax(0,1.35fr); align-items: center; gap: clamp(28px,4vw,76px); min-width: 0; min-height: clamp(480px,60svh,760px); padding: clamp(28px,3.5vw,56px); border-radius: 36px; border: 1px solid #ffffffed; background: linear-gradient(140deg,#ffffffed,#ffffff8c); box-shadow: inset 0 1px 1px #fff,inset 0 -1px #ffffff80,0 24px 60px #172a3008; backdrop-filter: blur(24px) saturate(140%); -webkit-backdrop-filter: blur(24px) saturate(140%); }
.package-card-copy { min-width: 0; }
.package-card-number { display: block; margin-bottom: 24px; color: var(--battery-essentials-green); font: 500 14px/1 Inter,sans-serif; letter-spacing: .14em; }
.package-card h3 { margin: 0 0 24px; color: #222831; font: 600 clamp(30px,2.8vw,46px)/1.1 Inter,sans-serif; letter-spacing: -.045em; }
.package-card-copy p { margin: 0; color: #586168; font: 400 clamp(16px,1.22vw,22px)/1.6 Inter,sans-serif; }
.package-visual { position: relative; display: grid; align-self: stretch; min-width: 0; min-height: 300px; }
.package-stage { --box-width: min(65cqw,56cqh,600px); --box-height: calc(var(--box-width) * 1.414); --box-depth: calc(var(--box-width) * .34); position: relative; container-type: size; display: grid; place-items: center; height: 100%; min-height: 0; perspective: 1800px; }
.course-package { position: relative; width: var(--box-width); height: var(--box-height); transform-style: preserve-3d; transform: rotateX(var(--package-pitch,-5deg)) rotateY(var(--package-yaw,32deg)); }
.package-face { position: absolute; background: linear-gradient(130deg,#fff,#dfe2e2); backface-visibility: hidden; border: 1px solid #d7dcdd; }
.package-back { inset: 0; transform: translateZ(calc(var(--box-depth) / -2)) rotateY(180deg); }
.package-spine { width: var(--box-depth); height: 100%; left: calc(var(--box-depth) / -2); transform: rotateY(-90deg); background: linear-gradient(95deg,#c9cfd0,#e9eded 70%,#f7f8f8); }
.package-spine img { position: absolute; max-width: none; width: calc(var(--box-height) * .72); height: auto; top: 50%; left: 50%; transform: translate(-50%,-50%) rotate(-90deg); filter: url(#be-brand-ink); }
.package-right { width: var(--box-depth); height: 100%; left: calc(100% - var(--box-depth) / 2); transform: rotateY(90deg); background: linear-gradient(90deg,#d8dddd,#f0f2f2); }
.package-right:after { content:'battery essentials'; color: var(--battery-essentials-green); position: absolute; top: 50%; left: 50%; white-space: nowrap; transform: translate(-50%,-50%) rotate(90deg); font: 500 24px/1 Inter,sans-serif; }
.package-top,.package-bottom { width: 100%; height: var(--box-depth); left: 0; }
.package-top { top: calc(var(--box-depth) / -2); transform: rotateX(90deg); background: linear-gradient(130deg,#fff,#eff1f1); }
.package-bottom { top: calc(100% - var(--box-depth) / 2); transform: rotateX(-90deg); }
.package-front { inset: 0; transform: translateZ(calc(var(--box-depth) / 2)); border: 1px solid #e2e5e5; border-radius: 2px; background: linear-gradient(130deg,#fff,#e7e9e9); overflow: hidden; box-shadow: inset -2px 1px 3px #fff; }
.package-cover-art { position: absolute; inset: 0 0 auto; height: 83%; overflow: hidden; mask-image: linear-gradient(#000 0 87%,transparent 100%); -webkit-mask-image: linear-gradient(#000 0 87%,transparent 100%); }
.package-cover-art img { display: block; width: 100%; height: auto; filter: url(#be-brand-accents); }
.package-printed-cells { position: absolute; top: 27%; left: 7%; width: 86%; height: 54%; object-fit: contain; }
.package-card .package-cover-caption { position: absolute; bottom: 5%; left: 4%; right: 4%; margin: 0; text-align: center; color: #363d43; font: 400 clamp(14px,1.5vw,21px)/1.35 Inter,sans-serif; }
.package-floor-shadow { position: absolute; bottom: 4%; width: calc(var(--box-width) * 1.2); max-width: 80%; height: 25px; border-radius: 50%; background: #253d3426; filter: blur(24px); }
.package-screenshot { display: flex; flex-direction: column; justify-content: center; align-items: center; align-self: stretch; min-width: 0; min-height: 0; margin: 0; }
.package-screenshot a { display: block; width: 100%; min-height: 0; overflow: hidden; border: 1px solid #e2e8e6; border-radius: 18px; background: #fff; box-shadow: 0 16px 48px #24393214; transition: transform .3s,box-shadow .3s; }
.package-screenshot a:hover { transform: translateY(-3px); box-shadow: 0 20px 50px #2439321c; }
.package-screenshot img { display: block; width: 100%; height: auto; max-height: 100%; aspect-ratio: 1600/923; object-fit: contain; }
.package-screenshot figcaption { display: flex; align-items: center; justify-content: space-between; width: 100%; gap: 14px; margin-top: 14px; color: #78817f; font: 400 14px/1.5 Inter,sans-serif; }
.package-screenshot figcaption span { color: var(--battery-essentials-green); font-size: 20px; }
.package-step-controls { display: none; }
.package-enhanced .package-feature-story { height: 400svh; }
.package-enhanced .package-pin { position: sticky; top: var(--package-pin-top); height: calc(100svh - var(--package-pin-top) - clamp(36px,5svh,64px)); box-sizing: border-box; }
.package-enhanced .package-content { display: grid; align-items: stretch; grid-template-rows: auto minmax(0,1fr) auto; gap: 28px; height: min(100%,1060px); }
.package-enhanced h2 { margin: 0 0 clamp(16px,2svh,28px); }
.package-enhanced .package-cards { position: relative; gap: 0; min-height: 0; }
.package-enhanced .package-card { grid-area: 1/1; align-self: stretch; min-height: 0; height: 100%; opacity: var(--card-opacity,0); transform: translateX(var(--card-shift,32px)); pointer-events: none; transition: opacity .4s ease,transform .55s cubic-bezier(.2,.7,.2,1); }
.package-enhanced .package-card[data-active] { pointer-events: auto; }
.package-enhanced .package-card:first-child { --card-opacity:1; --card-shift:0px; }
.package-enhanced .package-step-controls { display: flex; justify-self: center; align-items: center; justify-content: center; gap: 4px; margin: 0; padding: 0 8px; border-radius: 99px; background: #e7eceb; }
.package-step-controls button { display: grid; place-items: center; width: 44px; height: 44px; padding: 0; border: 0; border-radius: 99px; background: transparent; cursor: pointer; }
.package-step-controls button span { width: 7px; height: 7px; border-radius: 99px; background: #a5b1ae; transition: background .2s,width .2s; }
.package-step-controls button[aria-current="step"] span { width: 27px; background: var(--battery-essentials-green); }
.package-step-controls button:focus-visible,.package-screenshot a:focus-visible { outline: 2px solid var(--battery-essentials-green); outline-offset: 4px; }
@media(max-aspect-ratio:6/5) {
 .package-card { grid-template-columns: 1fr; grid-template-rows: auto minmax(0,1fr); gap: clamp(24px,3vh,48px); }
 .package-card-copy { width: 100%; max-width: 1050px; margin: 0 auto; text-align: center; }
 .package-card h3 { margin-bottom: 18px; }
 .package-card-number { margin-bottom: 18px; }
 .package-screenshot { width: 100%; max-width: 1400px; margin: 0 auto; }
 .package-screenshot a { width: auto; max-width: 100%; max-height: calc(100% - 40px); }
 .package-screenshot img { width: 100%; height: 100%; max-height: 100%; }
 .package-screenshot figcaption { max-width: 1400px; }
 .package-visual { min-height: 320px; }
}
@media(max-width:991px) {
 .package-card { padding: 28px; gap: 24px; border-radius: 28px; }
 .package-card h3 { font-size: 32px; }
 .package-card-copy p { font-size: 16px; }
}
@media(max-width:760px) {
 .package-section { margin: 40px 0 80px; scroll-margin-top: 100px; }
 .package-content.container { width: 90%; }
 .package-section h2 { font-size: clamp(38px,8vw,48px); margin-bottom: 40px; }
 .package-card { grid-template-columns: 1fr; grid-template-rows: auto minmax(0,1fr); padding: 24px; gap: 28px; min-height: 0; }
 .package-card-copy { text-align: left; }
 .package-card h3 { font-size: 30px; margin-bottom: 18px; }
 .package-card-copy p { font-size: 16px; line-height: 1.6; }
 .package-card-number { margin-bottom: 20px; }
 .package-visual { min-height: 330px; }
 .package-stage { --box-width: min(70cqw,53cqh,320px); perspective: 1200px; }
 .package-card .package-cover-caption { font-size: clamp(10px,2.8vw,15px); }
 .package-screenshot a { width: 100%; max-height: none; border-radius: 10px; }
 .package-screenshot img { height: auto; }
 .package-screenshot figcaption { font-size: 12px; margin-top: 10px; }
}
@media(prefers-reduced-motion:reduce) { .board-graph { animation: none!important; } .package-screenshot a { transition: none; } .course-package { transform: rotateX(-5deg) rotateY(25deg); } }

@media(min-width:761px) and (max-height:800px) {
 .package-section { --package-pin-top: 104px; }
 .package-section h2 { font-size: 44px; }
 .package-enhanced .package-pin { height: calc(100svh - 132px); }
 .package-enhanced .package-content { gap: 20px; }
 .package-enhanced h2 { margin-bottom: 16px; }
 .package-card { padding: 28px; gap: 28px; }
 .package-card h3 { font-size: 30px; }
 .package-card-copy p { font-size: 16px; }
}

/* Participant voices: a focused center card, with the adjacent voices in view. */
.participant-reviews { margin: 0; padding: clamp(72px,8vw,130px) 0 90px; overflow: hidden; scroll-margin-top: 110px; }
.participant-heading { width: 88%; max-width: 1440px; margin: 0 auto 56px; }
.participant-heading h2 { margin: 0; text-align: center; color: #222831; font: 600 clamp(38px,4.4vw,72px)/1.08 Inter,sans-serif; letter-spacing: -.045em; }
.participant-deck { display: flex; align-items: stretch; gap: 28px; padding: 28px max(24px,calc((100vw - 660px)/2)); overflow-x: auto; scroll-snap-type: x mandatory; touch-action: pan-y; }
.participant-review { box-sizing: border-box; flex: 0 0 min(660px,82vw); width: min(660px,82vw); min-height: 440px; padding: 40px; border-radius: 32px; background: #ffffffc9; border: 1px solid #fff; box-shadow: 0 16px 48px #263b3310,inset 0 1px #fff; display: flex; flex-direction: column; scroll-snap-align: center; }
.participant-review-top { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 36px; margin-bottom: 24px; }
.participant-review-top > span:last-child { color: #717b7a; font: 400 13px/1.5 Inter,sans-serif; }
.participant-quote-mark { height: 36px; color: var(--battery-essentials-green); font: 500 72px/1 Georgia,serif; }
.participant-stars { color: var(--battery-essentials-green); letter-spacing: 3px; font-size: 18px; }
.participant-review blockquote { margin: 0 0 32px; padding: 0; border: 0; }
.participant-review blockquote p { margin: 0; color: #252c31; font: 500 clamp(19px,1.65vw,24px)/1.5 Inter,sans-serif; letter-spacing: -.025em; }
.participant-person { display: flex; align-items: center; gap: 16px; margin-top: auto; }
.participant-avatar { flex: 0 0 64px; position: relative; width: 64px; height: 64px; border-radius: 50%; overflow: hidden; background: #edf1f0; }
.participant-avatar img,.participant-initials { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.participant-avatar img[hidden] { display: none; }
.participant-initials { display: grid; place-items: center; color: #5e6e6a; font: 500 20px/1 Inter,sans-serif; }
.participant-person h3 { margin: 0 0 4px; color: #222831; font: 600 18px/1.3 Inter,sans-serif; letter-spacing: -.02em; }
.participant-person p { margin: 0; color: #747e7b; font: 400 14px/1.4 Inter,sans-serif; }
.participant-source-link { align-self: flex-start; color: #596d68; margin-top: 24px; text-decoration: none; font: 400 14px/1.4 Inter,sans-serif; }
.participant-source-link span { color: var(--battery-essentials-green); margin-left: 6px; }
.reviews-enhanced .participant-deck { display: grid; grid-template-columns: min(660px,64vw); justify-content: center; padding: 32px 0 42px; gap: 0; overflow: clip; scroll-snap-type: none; mask-image: linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent); }
.reviews-enhanced .participant-review { scroll-snap-align: none; grid-area: 1/1; width: 100%; transform: translateX(calc(var(--review-offset,0) * (100% + 28px))) scale(.92); opacity: .25; transition: transform .6s cubic-bezier(.22,.68,.2,1),opacity .5s; }
.reviews-enhanced .participant-review[data-position="current"] { transform: translateX(0) scale(1); opacity: 1; background: #fff; box-shadow: 0 20px 55px #263b3315; z-index: 2; }
.reviews-enhanced .participant-review[data-position="away"] { opacity: 0; visibility: hidden; }
.participant-controls { display: flex; align-items: center; justify-content: center; gap: 20px; margin: 0 auto; }
.participant-controls[hidden] { display: none; }
.participant-controls button { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%; border: 1px solid #fff; background: #ffffffad; color: #34403b; box-shadow: 0 4px 16px #233d3008; cursor: pointer; transition: transform .2s; }
.participant-controls button:hover { transform: scale(1.07); }
.participant-controls button:focus-visible,.participant-deck:focus-visible,.participant-source-link:focus-visible,.google-rating a:focus-visible { outline: 2px solid var(--battery-essentials-green); outline-offset: 5px; }
.participant-position { min-width: 54px; text-align: center; color: #77827e; font: 400 14px/1 Inter,sans-serif; font-variant-numeric: tabular-nums; }
.google-rating { display: flex; flex-direction: column; align-items: center; gap: 14px; width: max-content; max-width: 88%; margin: 76px auto 0; text-align: center; }
.google-rating-score { display: flex; align-items: baseline; gap: 8px; font-family: Inter,sans-serif; }
.google-rating-score strong { color: #222831; font-size: clamp(58px,6vw,80px); font-weight: 600; line-height: 1; letter-spacing: -.065em; font-variant-numeric: tabular-nums; }
.google-rating-score > span { color: #7d8683; font-size: 23px; }
.google-rating-stars { display: flex; gap: 8px; color: var(--battery-essentials-green); font-size: 32px; line-height: 1; }
.google-rating-stars span { display: inline-block; }
.reviews-enhanced .google-rating-stars span { opacity: .2; transform: translateY(6px) scale(.85); transition: opacity .55s,transform .55s; transition-delay: calc(var(--star-index) * 120ms); }
.reviews-enhanced .rating-visible .google-rating-stars span { opacity: 1; transform: none; }
.google-rating a { margin-top: 2px; color: #394841; text-decoration: none; font: 500 16px/1.4 Inter,sans-serif; }
.google-rating a span { color: var(--battery-essentials-green); margin-left: 6px; }
.google-rating > p { color: #858e8a; font: 400 12px/1.4 Inter,sans-serif; margin: -6px 0 0; }
.participant-video-grid { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 28px; width: 88%; max-width: 1320px; margin: 64px auto 0; scroll-margin-top: 110px; }
.participant-video-card { position: relative; aspect-ratio: 16/9; overflow: hidden; border-radius: 24px; background: #fff; box-shadow: 0 14px 40px #263b330d; border: 1px solid #ffffffc9; }
.participant-video-card iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
@media(max-width:760px) {
 .participant-heading { margin-bottom: 28px; }
 .participant-heading h2 { font-size: 38px; }
 .reviews-enhanced .participant-deck { grid-template-columns: 82vw; padding-bottom: 30px; mask-image: none; }
 .participant-review { padding: 26px; min-height: 460px; border-radius: 26px; }
 .reviews-enhanced .participant-review { transform: translateX(calc(var(--review-offset,0) * (100% + 16px))) scale(.93); }
 .participant-review-top { gap: 12px; margin-bottom: 20px; }
 .participant-review-top > span:last-child { font-size: 12px; }
 .participant-review blockquote p { font-size: 19px; line-height: 1.5; }
 .participant-person { gap: 12px; }
 .participant-avatar { flex-basis: 52px; width: 52px; height: 52px; }
 .participant-person h3 { font-size: 16px; }
 .participant-person p { font-size: 12px; }
 .google-rating { margin-top: 54px; }
 .participant-video-grid { grid-template-columns: 1fr; }
 }
@media(prefers-reduced-motion:reduce) { .reviews-enhanced .participant-review,.participant-controls button,.reviews-enhanced .google-rating-stars span { transition: none; } .reviews-enhanced .google-rating-stars span { opacity: 1; transform: none; } }

/* Purchase: the course package beside one clear, complete licence card. */
.purchase-section { padding: clamp(80px,8vw,132px) 0; scroll-margin-top: 100px; }
.purchase-container { width: 88%; max-width: 1240px; margin: 0 auto; }
.purchase-heading { max-width: 1020px; margin: 0 auto clamp(56px,6vw,88px); text-align: center; }
.purchase-heading h2 { margin: 0 0 24px; color: #222831; font: 600 clamp(38px,4.4vw,68px)/1.08 Inter,sans-serif; letter-spacing: -.045em; }
.purchase-heading > p { max-width: 730px; margin: 0 auto; color: #586168; font: 400 clamp(17px,1.5vw,21px)/1.55 Inter,sans-serif; }
.purchase-layout { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); align-items: center; gap: clamp(40px,5vw,80px); }
.purchase-visual { min-height: 700px; align-self: center; height: 700px; }
.purchase-visual .package-stage { --box-width: min(77cqw,57cqh,420px); perspective: 1900px; }
.purchase-visual .package-cover-caption { position: absolute; bottom: 5%; left: 4%; right: 4%; margin: 0; text-align: center; color: #363d43; font: 400 clamp(12px,1.4vw,19px)/1.35 Inter,sans-serif; }
/* The package floats gently while its ground shadow softens with the lift. */
.purchase-visual .course-package { animation: purchase-package-float 7s ease-in-out infinite; animation-play-state: paused; }
.purchase-visual .package-floor-shadow { bottom: calc(50% - var(--box-height) / 2 - 22px); height: 30px; background: rgba(30,42,39,.2); filter: blur(18px); animation: purchase-package-shadow 7s ease-in-out infinite; animation-play-state: paused; }
.purchase-visual[data-floating="true"] .course-package,.purchase-visual[data-floating="true"] .package-floor-shadow { animation-play-state: running; }
@keyframes purchase-package-float {
 0%,100% { transform: translateY(0) rotateX(var(--package-pitch,-5deg)) rotateY(var(--package-yaw,32deg)) rotateZ(-.5deg); }
 50% { transform: translateY(-12px) rotateX(calc(var(--package-pitch,-5deg) + 1.5deg)) rotateY(calc(var(--package-yaw,32deg) - 3deg)) rotateZ(.5deg); }
}
@keyframes purchase-package-shadow { 0%,100% { transform: scaleX(1); opacity: .8; } 50% { transform: scaleX(1.1); opacity: .5; } }
@media(prefers-reduced-motion:reduce) { .purchase-visual .course-package,.purchase-visual .package-floor-shadow { animation: none; } }
.purchase-card { box-sizing: border-box; min-width: 0; padding: clamp(30px,3.4vw,48px); border-radius: 36px; border: 1px solid #fff; background: linear-gradient(140deg,#fffffff5,#ffffffbf); box-shadow: inset 0 1px 1px #fff,0 24px 72px #263b330b; }
.purchase-eyebrow { margin: 0 0 18px; color: var(--battery-essentials-green); font: 600 12px/1.4 Inter,sans-serif; letter-spacing: .12em; }
.purchase-card h3 { margin: 0 0 14px; color: #222831; font: 600 clamp(28px,2.6vw,38px)/1.12 Inter,sans-serif; letter-spacing: -.04em; }
.purchase-description { margin: 0; color: #68716f; font: 400 16px/1.55 Inter,sans-serif; }
.purchase-price { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px 16px; padding: 30px 0; margin-bottom: 26px; border-bottom: 1px solid #23312b12; }
.purchase-price strong { color: #222831; font: 600 clamp(48px,4.5vw,64px)/1 Inter,sans-serif; letter-spacing: -.055em; white-space: nowrap; }
.purchase-price > span { color: #717b77; font: 400 14px/1.5 Inter,sans-serif; }
.purchase-features { display: grid; gap: 13px; padding: 0; margin: 0 0 32px; list-style: none; }
.purchase-features li { display: grid; grid-template-columns: 20px minmax(0,1fr); gap: 10px; color: #404b47; font: 400 16px/1.45 Inter,sans-serif; }
.purchase-features li > span:first-child { color: var(--battery-essentials-green); font-weight: 600; }
.purchase-button { display: flex; align-items: center; justify-content: center; min-height: 58px; padding: 16px 24px; border-radius: 999px; background: var(--battery-essentials-green); color: #fff; font: 600 17px/1.4 Inter,sans-serif; text-decoration: none; transition: transform .2s,box-shadow .2s; }
.purchase-button:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px #1b403322; }
.purchase-button:focus-visible { outline: 2px solid #222831; outline-offset: 5px; }
.purchase-guarantee { margin: 20px auto 0; max-width: 350px; text-align: center; color: #78817c; font: 400 13px/1.5 Inter,sans-serif; }
.purchase-guarantee strong { color: #58645e; font-weight: 500; }
@media(max-width:900px) {
 .purchase-container { max-width: 620px; }
 .purchase-layout { grid-template-columns: minmax(0,1fr); gap: 36px; }
 .purchase-heading { margin-bottom: 24px; }
 .purchase-visual { height: 570px; min-height: 570px; }
 .purchase-visual .package-stage { --box-width: min(70cqw,56cqh,340px); }
 .purchase-visual .package-cover-caption { font-size: 16px; }
}
@media(max-width:480px) {
 .purchase-section { padding: 72px 0; }
 .purchase-container { width: 90%; }
 .purchase-heading h2 { font-size: 38px; }
 .purchase-layout { gap: 24px; }
 .purchase-visual { height: 430px; min-height: 430px; }
 .purchase-visual .package-stage { --box-width: min(70cqw,55cqh,270px); }
 .purchase-visual .package-cover-caption { font-size: 12px; }
 .purchase-card { padding: 28px 24px; border-radius: 28px; }
}
@media(prefers-reduced-motion:reduce) { .purchase-button { transition: none; } }

/* Consistent purchase links at the end of the decision-making sections. */
.section-purchase-action { display: flex; justify-content: center; margin-top: 44px; }
.section-purchase-link { width: max-content; min-width: 200px; max-width: 100%; box-sizing: border-box; }
.package-actions { display: flex; justify-content: center; align-items: center; gap: 24px; margin-top: 36px; }
.package-enhanced .package-actions { margin-top: 0; }
.package-actions .section-purchase-link { min-height: 50px; padding: 13px 28px; font-size: 16px; }
@media(max-width:760px) { .section-purchase-action { margin-top: 32px; } .package-actions { flex-wrap: wrap; gap: 16px; } }

/* Author: the same quiet glass surfaces, balanced with a photographic gallery. */
.author-section { padding: clamp(80px,8vw,130px) 0; scroll-margin-top: 100px; }
.author-container { width: 88%; max-width: 1320px; margin: 0 auto; }
.author-container > h2 { margin: 0 0 clamp(48px,5vw,72px); text-align: center; color: #222831; font: 600 clamp(38px,4.4vw,68px)/1.08 Inter,sans-serif; letter-spacing: -.045em; }
.author-grid { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 28px; align-items: stretch; }
.author-bio,.author-gallery { box-sizing: border-box; min-width: 0; border-radius: 36px; box-shadow: 0 20px 60px #263b330a; }
.author-bio { padding: clamp(32px,3.6vw,54px); background: linear-gradient(135deg,#ffffffef,#ffffffa8); border: 1px solid #fff; }
.author-bio .author-eyebrow { margin: 0 0 20px; color: var(--battery-essentials-green); font: 600 14px/1.4 Inter,sans-serif; letter-spacing: .035em; }
.author-bio h3 { margin: 0 0 28px; color: #222831; font: 600 clamp(30px,3vw,44px)/1.12 Inter,sans-serif; letter-spacing: -.045em; }
.author-bio > p:not(.author-eyebrow) { margin: 0 0 24px; color: #586168; font: 400 clamp(17px,1.15vw,18px)/1.6 Inter,sans-serif; }
.author-bio > p:last-child { margin-bottom: 0; }
.author-bio a { color: inherit; text-decoration: none; }
.author-bio a:hover { text-decoration: none; }
.author-bio a:focus-visible { outline: 2px solid var(--battery-essentials-green); outline-offset: 4px; border-radius: 2px; }
.author-bio strong { font-weight: 500; color: #27352e; }
.author-gallery { position: relative; overflow: hidden; min-height: 600px; background: #e8eceb; isolation: isolate; touch-action: pan-y; }
.author-slides { position: absolute; inset: 0; }
.author-slide { position: absolute; inset: 0; margin: 0; opacity: 0; transform: translateX(8%); transition: transform 1.4s cubic-bezier(.22,.61,.36,1),opacity 1.4s; pointer-events: none; }
.author-slide.is-previous { transform: translateX(-8%); }
.author-slide.is-current { z-index: 1; opacity: 1; transform: translateX(0); }
.author-slide img { width: 100%; height: 100%; display: block; }
.author-gallery-controls { position: absolute; z-index: 2; bottom: 22px; left: 50%; transform: translateX(-50%); display: flex; align-items: center; gap: 4px; width: max-content; max-width: calc(100% - 28px); padding: 5px 8px; border: 1px solid #ffffffb3; border-radius: 99px; background: #ffffffc9; backdrop-filter: blur(20px) saturate(130%); -webkit-backdrop-filter: blur(20px) saturate(130%); box-shadow: 0 4px 24px #24322b15; }
.author-gallery-controls[hidden] { display: none; }
.author-gallery-controls button { display: grid; place-items: center; width: 44px; height: 44px; flex: none; border: 0; border-radius: 50%; background: transparent; color: #25332e; cursor: pointer; }
.author-gallery-controls button:hover { background: #ffffffa6; }
.author-gallery-controls button svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.author-photo-count { min-width: 50px; text-align: center; color: #586860; font: 500 13px/1.4 Inter,sans-serif; font-variant-numeric: tabular-nums; }
.author-control-divider { height: 20px; width: 1px; background: #364f4226; margin: 0 4px; }
.author-gallery-controls .author-play-icon,.author-gallery[data-paused="true"] .author-pause-icon { display: none; }
.author-gallery[data-paused="true"] .author-play-icon { display: block; }
.author-gallery:focus-visible,.author-gallery-controls button:focus-visible { outline: 2px solid var(--battery-essentials-green); outline-offset: -4px; }
.author-references.social-proof { width: 92%; max-width: 1560px; margin: 78px auto 0; padding: 0; }
.author-references > h3 { margin: 0 0 30px; color: #222831; text-align: center; font: 600 clamp(28px,2.5vw,38px)/1.2 Inter,sans-serif; letter-spacing: -.035em; }
.author-references .proof-banner { margin-top: 0; padding-bottom: 40px; }
.author-references .proof-logo { flex: 0 0 212px; width: 212px; height: 110px; padding: 15px; }
.author-references .proof-logo img { width: var(--reference-width); height: 76px; max-width: 100%; }
.author-references .reference-alpha img { filter: brightness(0) url(#be-brand-ink); }
.author-references .reference-light img { filter: url(#be-reference-light); }
.author-references .reference-soft img { filter: url(#be-reference-soft); }
.author-references .reference-podcast { position: relative; overflow: hidden; height: 70px; align-self: center; padding: 0; margin: 0; }
.author-references .reference-podcast img { position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 185px; height: 185px; max-width: none; filter: url(#be-reference-light); }
.author-references[data-motion="true"] .proof-track { animation-duration: 75s; }
@media(max-width:900px) {
 .author-container { width: 90%; max-width: 660px; }
 .author-grid { grid-template-columns: minmax(0,1fr); gap: 24px; }
 .author-bio { padding: 36px; }
 .author-gallery { min-height: 0; aspect-ratio: 1/1; }
 .author-references.social-proof { width: 100%; }
 .author-references .proof-toggle { right: 5%; }
}
@media(max-width:480px) {
 .author-bio { padding: 30px 26px; border-radius: 28px; }
 .author-gallery { border-radius: 28px; aspect-ratio: 4/5; }
 .author-gallery-controls { bottom: 18px; }
 .author-references.social-proof { margin-top: 56px; }
 .author-bio h3 { font-size: 32px; }
}
@media(prefers-reduced-motion:reduce) { .author-slide { transition: none; } }

/* Quiet, native publication disclosure. */
.author-publications { margin: 4px auto 0; max-width: 1040px; border-top: 1px solid #263b331c; border-bottom: 1px solid #263b331c; }
.author-publications summary { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 26px 4px; color: #586168; font: 500 clamp(17px,1.4vw,20px)/1.4 Inter,sans-serif; cursor: pointer; list-style: none; }
.author-publications summary::-webkit-details-marker { display: none; }
.publication-toggle { color: var(--battery-essentials-green); font-size: 28px; font-weight: 300; transition: transform .25s ease; }
.author-publications[open] .publication-toggle { transform: rotate(45deg); }
.author-publications summary:focus-visible,.author-publications a:focus-visible { outline: 2px solid var(--battery-essentials-green); outline-offset: 4px; border-radius: 4px; }
.publication-content { padding: 0 4px 28px; }
.publication-group + .publication-group { margin-top: 32px; }
.publication-group h4 { margin: 0 0 12px; color: #586168; font: 500 14px/1.5 Inter,sans-serif; }
.publication-group ul { margin: 0; padding: 0; list-style: none; }
.publication-group li + li { border-top: 1px solid #263b330d; }
.publication-group a { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 16px 0; color: #273039; text-decoration: none; }
.publication-title { display: block; font: 400 clamp(16px,1.25vw,18px)/1.5 Inter,sans-serif; overflow-wrap: anywhere; }
.publication-source { display: block; margin-top: 6px; color: #778087; font: 400 13px/1.5 Inter,sans-serif; }
.publication-arrow { color: var(--battery-essentials-green); font-size: 24px; flex-shrink: 0; transition: transform .2s ease; }
.publication-group a:hover .publication-arrow { transform: translate(2px,-2px); }
@media (prefers-reduced-motion: reduce) { .publication-toggle,.publication-arrow { transition: none; } }

/* FAQ: the same quiet glass surfaces as the rest of the page. */
.faq-modern { padding: 70px 0 clamp(90px,9vw,150px); scroll-margin-top: 110px; }
.faq-modern-container { width: 88%; max-width: 1040px; margin: 0 auto; }
.faq-modern h2 { margin: 0 0 clamp(38px,5vw,68px); text-align: center; color: #222831; font: 600 clamp(36px,4.6vw,64px)/1.08 Inter,sans-serif; letter-spacing: -.045em; }
.faq-glass-list { display: grid; gap: 14px; }
.faq-glass-item { min-width: 0; border-radius: 24px; border: 1px solid #ffffffed; background: linear-gradient(125deg,#ffffffd9,#ffffff80); box-shadow: 0 8px 28px #263b3305,inset 0 1px 0 #fff; backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); transition: box-shadow .25s ease,background .25s ease; }
.faq-glass-item:hover { box-shadow: 0 12px 32px #263b330b,inset 0 1px 0 #fff; }
.faq-glass-item summary { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 26px 32px; list-style: none; cursor: pointer; border-radius: 24px; }
.faq-glass-item summary::-webkit-details-marker { display: none; }
.faq-glass-item h3 { margin: 0; color: #273039; font: 500 clamp(18px,1.6vw,21px)/1.45 Inter,sans-serif; letter-spacing: -.02em; }
.faq-glass-toggle { display: grid; place-items: center; flex: 0 0 36px; width: 36px; height: 36px; border-radius: 50%; color: var(--battery-essentials-green); background: #ffffffa6; border: 1px solid #263b3309; transition: transform .25s ease; }
.faq-glass-toggle svg { width: 22px; height: 22px; }
.faq-glass-item[open] .faq-glass-toggle { transform: rotate(45deg); }
.faq-glass-answer { padding: 0 92px 30px 32px; }
.faq-glass-answer p { margin: 0; color: #586168; font: 400 clamp(16px,1.25vw,18px)/1.7 Inter,sans-serif; }
.faq-glass-answer a { color: inherit; text-decoration: none; border-bottom: 1px solid #263b3326; overflow-wrap: anywhere; }
.faq-glass-answer a:hover { border-color: var(--battery-essentials-green); }
.faq-glass-item summary:focus-visible,.faq-glass-answer a:focus-visible { outline: 2px solid var(--battery-essentials-green); outline-offset: 4px; }
.faq-glass-item[open] .faq-glass-answer { animation: faq-answer-in .28s ease both; }
@keyframes faq-answer-in { from { opacity: 0; transform: translateY(-5px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 600px) { .faq-modern { padding-top: 48px; } .faq-modern-container { width: 90%; } .faq-glass-item,.faq-glass-item summary { border-radius: 20px; } .faq-glass-item summary { padding: 22px 20px; gap: 16px; } .faq-glass-answer { padding: 0 20px 26px; } .faq-glass-toggle { flex-basis: 30px; width: 30px; height: 30px; } }
@media (prefers-reduced-motion: reduce) { .faq-glass-item,.faq-glass-toggle { transition: none; } .faq-glass-item[open] .faq-glass-answer { animation: none; } }

.author-grid { grid-template-areas: "bio gallery" "publications socials"; row-gap: 20px; }
.author-bio { grid-area: bio; }
.author-gallery { grid-area: gallery; }
.author-grid > .author-publications { grid-area: publications; margin: 0; align-self: start; min-width: 0; }
.author-grid > .author-publications summary { padding: 20px 4px; }
.author-socials { grid-area: socials; display: flex; gap: 12px; align-self: start; padding: 5px 0; }
.author-socials a { display: flex; align-items: center; justify-content: center; gap: 12px; flex: 1; min-height: 54px; padding: 12px 20px; border: 1px solid #fff; border-radius: 99px; background: #ffffffad; box-shadow: 0 6px 24px #263b3306; color: #273039; font: 500 16px/1.4 Inter,sans-serif; text-decoration: none; transition: transform .2s ease,box-shadow .2s ease; }
.author-socials a:hover { transform: translateY(-2px); box-shadow: 0 8px 24px #263b3310; }
.author-socials a:focus-visible { outline: 2px solid var(--battery-essentials-green); outline-offset: 4px; }
.author-social-icon { color: var(--battery-essentials-green); font: 700 24px/1 Arial,sans-serif; letter-spacing: -.06em; }
.author-social-youtube { width: 26px; height: 26px; color: var(--battery-essentials-green); flex-shrink: 0; }
.author-social-arrow { color: var(--battery-essentials-green); font-size: 20px; }
@media(max-width:900px) { .author-grid { grid-template-areas: "bio" "publications" "gallery" "socials"; } }
@media(max-width:480px) { .author-socials a { padding: 12px; gap: 8px; font-size: 15px; } }
@media(prefers-reduced-motion:reduce) { .author-socials a { transition: none; } }

@media(max-width:600px) { .participant-video-grid { width: 90%; gap: 20px; margin-top: 40px; } .participant-video-card { border-radius: 18px; } }

/* Quiet glass footer, independent of the legacy Webflow navigation animations. */
.site-footer { padding: 72px 4.5% 28px; color: #252c33; }
.site-footer-shell { max-width: 1440px; margin: 0 auto; padding: 56px 52px 24px; border: 1px solid rgba(255,255,255,.9); border-radius: 32px; background: rgba(255,255,255,.48); box-shadow: 0 12px 48px rgba(25,44,41,.035); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); }
.site-footer-main { display: grid; grid-template-columns: minmax(270px,1.8fr) repeat(2,minmax(120px,1fr)); gap: 40px; padding-bottom: 48px; }
.site-footer-brand img { display: block; width: 240px; max-width: 100%; height: auto; filter: url(#be-brand-ink); }
.site-footer-brand p { margin: 24px 0 20px; font-size: 16px; line-height: 1.6; color: #626b72; }
.site-footer a { color: inherit; text-decoration: none; font-size: 16px; line-height: 1.5; }
.site-footer a:hover { color: var(--battery-essentials-green); }
.site-footer a:focus-visible { outline: 2px solid var(--battery-essentials-green); outline-offset: 5px; border-radius: 4px; }
.site-footer-column { display: flex; flex-direction: column; align-items: flex-start; gap: 14px; }
.site-footer-column h2 { margin: 0 0 9px; font: 600 16px/1.5 Inter, sans-serif; letter-spacing: -.2px; }
.site-footer-column a { display: inline-flex; gap: 16px; align-items: center; min-height: 32px; }
.site-footer a span[aria-hidden] { color: var(--battery-essentials-green); }
.site-footer-contact { display: inline-flex; align-items: center; gap: 14px; min-height: 44px; overflow-wrap: anywhere; }
.site-footer-bottom { display: flex; justify-content: space-between; gap: 16px 36px; flex-wrap: wrap; padding-top: 24px; border-top: 1px solid rgba(32,48,43,.1); font-size: 14px; line-height: 1.6; color: #687178; }
@media(max-width: 1000px) { .site-footer-main { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 32px; } .site-footer-brand { grid-column: 1 / -1; } .site-footer-shell { padding: 40px 32px 24px; } }
@media(max-width: 560px) { .site-footer { padding: 40px 5% 20px; } .site-footer-shell { padding: 32px 24px 24px; border-radius: 26px; } .site-footer-main { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 32px 20px; padding-bottom: 32px; } .site-footer-brand img { width: 220px; } .site-footer-bottom { flex-direction: column; gap: 12px; } }

/* Legal pages: static headings and a comfortable reading width. */
.legal-page { width: min(100% - 48px, 1040px); margin: 0 auto; padding: 176px 0 32px; color: #252c33; }
.legal-heading { margin-bottom: 48px; }
.legal-heading h1 { margin: 0; font: 600 clamp(36px,5vw,68px)/1.12 Inter,sans-serif; letter-spacing: -.045em; overflow-wrap: anywhere; }
.legal-content { padding: clamp(24px,5vw,64px); background: rgba(255,255,255,.55); border: 1px solid #fff; border-radius: 32px; box-shadow: 0 12px 48px #263b3308; }
.legal-content h2 { margin: 48px 0 22px; font: 600 clamp(24px,2.5vw,32px)/1.25 Inter,sans-serif; letter-spacing: -.025em; }
.legal-content > h2:first-child { margin-top: 0; }
.legal-content h3 { margin: 32px 0 14px; font: 600 21px/1.4 Inter,sans-serif; letter-spacing: -.015em; }
.legal-content h4 { margin: 24px 0 12px; font: 600 18px/1.45 Inter,sans-serif; }
.legal-content p,.legal-content li { margin: 0 0 18px; font: 400 17px/1.8 Inter,sans-serif; color: #4f5961; }
.legal-content strong { font-weight: 600; }
.legal-content,.legal-content a { overflow-wrap: anywhere; }
.legal-content a { color: inherit; text-decoration: underline; text-decoration-color: var(--battery-essentials-green); text-underline-offset: 4px; }
.legal-content a:focus-visible { outline: 2px solid var(--battery-essentials-green); outline-offset: 4px; }
.legal-content ul,.legal-content ol { padding-left: 24px; }
.legal-content .rich-text { margin: 0; }
@media(max-width:600px) { .legal-page { width: calc(100% - 32px); padding-top: 140px; } .legal-heading { margin-bottom: 32px; } .legal-content { border-radius: 24px; padding: 24px; } .legal-content p,.legal-content li { font-size: 16px; line-height: 1.75; } }