/* ============================================================
   Battery Associates — shared stylesheet (styles.css)
   Linked by index, enterprise, advisory, about, contact
   ============================================================ */

:root{
  /* Primary — BA Cobalt Blue */
  --cobalt-dark:#21224E; --cobalt:#30368B; --cobalt-60:#8386B9; --cobalt-40:#ACAFD1; --cobalt-5:#F5F5F9;
  /* Primary — BA Ruby Red */
  --ruby-dark:#700A0B; --ruby:#9A1C20; --ruby-60:#C27779; --ruby-5:#FAF4F4;
  /* Accent (UI only) */
  --teal:#3D9CCC; --teal-dark:#2d7ba3; --teal-5:#eef6fb;
  /* Neutrals */
  --black:#050716; --grey-80:#4D4D4D; --grey-70:#646464; --grey-60:#7A7A7A; --grey-10:#E9E9E9; --grey-5:#F4F4F4; --white:#FFFFFF;
  /* Tokens */
  --text:#21224E; --muted:#646464; --line:#E9E9E9; --maxw:1180px; --r:14px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--white);color:var(--text);font-family:'Asap',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:17px;line-height:1.5;-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3,h4,h5{font-family:'Roboto',sans-serif;color:var(--cobalt-dark);line-height:1.15}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.sr-only:focus{position:static;width:auto;height:auto;margin:0;clip:auto;padding:10px 16px;background:var(--cobalt);color:#fff}
.accent-text{background:linear-gradient(120deg,var(--ruby),var(--cobalt));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* ---------- Logo ---------- */
.logo-lockup{display:flex;align-items:center;gap:13px}
.sig-svg{height:32px;width:auto;flex:none;display:block}
.sig-svg .fill-grad{fill:url(#baGrad)}
.on-dark .sig-svg .fill-grad{fill:#fff}
.wordmark{display:flex;flex-direction:column;line-height:.9}
.wordmark .b1{font-family:'Roboto';font-weight:900;font-style:italic;font-size:22px;background:linear-gradient(105deg,var(--ruby) 0%,var(--cobalt) 70%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;transform:skewX(-7deg)}
.wordmark .b2{font-family:'Roboto';font-weight:400;font-size:9.5px;letter-spacing:5.5px;background:linear-gradient(105deg,var(--ruby) 0%,var(--cobalt-dark) 70%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin-left:3px;margin-top:2px}
.on-dark .wordmark .b1{background:none;-webkit-text-fill-color:#fff}
.on-dark .wordmark .b2{background:none;-webkit-text-fill-color:rgba(255,255,255,.9)}

/* ---------- Nav ---------- */
header.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;min-height:74px}
.nav-links{display:flex;gap:30px;align-items:center}
.nav-links a{color:var(--grey-70);font-size:15px;font-weight:500;font-family:'Roboto';transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:var(--cobalt)}
.nav-cta{display:flex;gap:12px}
.menu-toggle{display:none;background:none;border:none;color:var(--cobalt-dark);font-size:26px;cursor:pointer}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:'Roboto';font-weight:500;font-size:15px;padding:11px 22px;border-radius:8px;cursor:pointer;border:1.5px solid transparent;transition:transform .15s,box-shadow .2s,background .2s,color .2s}
.btn-primary{background:var(--cobalt);color:#fff}
.btn-primary:hover{background:var(--cobalt-dark);transform:translateY(-2px);box-shadow:0 10px 24px -10px rgba(33,34,78,.55)}
.btn-ruby{background:var(--ruby);color:#fff}
.btn-ruby:hover{background:var(--ruby-dark);transform:translateY(-2px);box-shadow:0 10px 24px -10px rgba(112,10,11,.5)}
.btn-teal{background:var(--teal);color:#fff}
.btn-teal:hover{background:var(--teal-dark);transform:translateY(-2px)}
.btn-ghost{border-color:var(--cobalt-40);color:var(--cobalt)}
.btn-ghost:hover{border-color:var(--cobalt);background:var(--cobalt-5)}
.btn-light{background:#fff;color:var(--cobalt-dark)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 10px 24px -10px rgba(0,0,0,.4)}
.btn-outline-light{border-color:rgba(255,255,255,.6);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff}

/* ---------- Hero (home) + page-head (subpages): shared gradient ---------- */
.hero,.page-head{position:relative;color:#fff;overflow:hidden;background:var(--cobalt-dark)}
.hero .grad,.page-head .grad{position:absolute;inset:-15%;z-index:0;background:radial-gradient(130% 130% at 50% 50%,#2a1e54 0%,#21224E 50%,#18091f 100%)}
.hero .bloom,.page-head .bloom{position:absolute;inset:-15%;z-index:1;will-change:transform}
.hero .bloom.red,.page-head .bloom.red{background:radial-gradient(38% 50% at 16% 84%,#9A1C20 0%,rgba(154,28,32,0) 58%);animation:driftRed 19s ease-in-out infinite}
.hero .bloom.blue,.page-head .bloom.blue{background:radial-gradient(42% 54% at 84% 16%,#30368B 0%,rgba(48,54,139,0) 60%);animation:driftBlue 23s ease-in-out infinite}
@keyframes driftRed{0%{transform:translate(0,0) scale(1)}25%{transform:translate(9%,-6%) scale(1.18)}50%{transform:translate(3%,5%) scale(.94)}75%{transform:translate(-6%,2%) scale(1.08)}100%{transform:translate(0,0) scale(1)}}
@keyframes driftBlue{0%{transform:translate(0,0) scale(1)}25%{transform:translate(-8%,7%) scale(1.14)}50%{transform:translate(-3%,-5%) scale(.93)}75%{transform:translate(6%,-3%) scale(1.1)}100%{transform:translate(0,0) scale(1)}}
@media(prefers-reduced-motion:reduce){.hero .bloom,.page-head .bloom{animation:none}}
.hero .grain{position:absolute;inset:0;z-index:0;opacity:.5;pointer-events:none;background-image:radial-gradient(rgba(255,255,255,.04) 1px,transparent 1px);background-size:3px 3px}
.hero-inner{position:relative;z-index:2;padding:108px 0 96px;max-width:760px}
.page-head-inner{position:relative;z-index:2;padding:88px 0 82px;max-width:740px}

.eyebrow{display:inline-flex;align-items:center;gap:11px;font-family:'Roboto';font-size:13px;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;color:rgba(255,255,255,.85)}
.eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--ruby);box-shadow:0 0 12px 1px rgba(154,28,32,.9)}
.hero h1{color:#fff;font-weight:300;font-size:clamp(40px,6vw,72px);letter-spacing:-1.5px;margin:28px 0 24px;max-width:18ch}
.page-head h1{color:#fff;font-weight:300;font-size:clamp(36px,5vw,58px);letter-spacing:-1.2px;margin:24px 0 20px}
.hero h1 b,.page-head h1 b{font-weight:900;font-style:italic;display:inline-block}
.hero p.lede{font-size:clamp(17px,2vw,21px);color:rgba(255,255,255,.82);max-width:60ch;margin-bottom:36px}
.page-head p{font-size:clamp(17px,2vw,20px);color:rgba(255,255,255,.82);max-width:58ch;margin-bottom:30px}
.hero-cta,.page-head .cta-row{display:flex;gap:14px;flex-wrap:wrap}
.hero-cta .btn{padding:14px 28px}

/* ---------- Credibility bar (home) ---------- */
.cred{background:var(--cobalt-5);border-bottom:1px solid var(--line);padding:34px 0}
.cred .label{font-family:'Roboto';font-size:13px;text-transform:uppercase;letter-spacing:.8px;color:var(--grey-60);text-align:center;margin-bottom:22px}
.logos{display:flex;flex-wrap:wrap;justify-content:center;gap:14px 40px;align-items:center}
.logos span{font-family:'Roboto';font-size:18px;font-weight:600;color:var(--cobalt-dark);opacity:.45;transition:opacity .2s}
.logos span:hover{opacity:.9}

.stats-wrap{padding:64px 0 0}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{padding:26px 24px;border:1px solid var(--line);border-radius:var(--r);background:#fff}
.stat .num{font-family:'Roboto';font-size:40px;font-weight:900;color:var(--cobalt);letter-spacing:-1px;line-height:1}
.stat .num.r{color:var(--ruby)}
.stat .desc{font-size:14px;color:var(--muted);margin-top:8px}

/* ---------- Section heads ---------- */
.sec{padding:84px 0}
.sec-head{max-width:64ch;margin-bottom:50px}
.kicker{font-family:'Roboto';color:var(--ruby);font-weight:600;font-size:13.5px;letter-spacing:1px;text-transform:uppercase}
.sec-head h2{font-weight:500;font-size:clamp(28px,4vw,44px);letter-spacing:-.8px;margin:14px 0 16px}
.sec-head h2 .lighter{font-weight:300;color:var(--cobalt-60)}
.sec-head p{color:var(--muted);font-size:18px}
.sec h2{font-weight:500;font-size:clamp(27px,3.6vw,40px);letter-spacing:-.7px;margin:14px 0 18px;max-width:32ch}
.sec h2 b{font-weight:900;color:var(--ruby)}
.lead-p{font-size:19px;color:var(--grey-80);max-width:62ch;margin-bottom:16px}
.body-p{color:var(--muted);max-width:62ch;margin-bottom:16px}

/* ---------- Offerings: editorial numbered rows (home) ---------- */
.offer-list{border-top:1px solid var(--cobalt-dark)}
.offer{position:relative;display:grid;grid-template-columns:auto 1fr auto;gap:36px;align-items:start;padding:38px 8px 38px 0;border-bottom:1px solid var(--line);color:inherit;transition:padding-left .35s cubic-bezier(.2,.8,.2,1),background .35s}
.offer-num{font-family:'Roboto';font-weight:900;font-size:40px;font-style:italic;line-height:1;color:var(--cobalt-40);transform:skewX(-7deg);transition:color .3s;min-width:64px}
.offer-body{max-width:62ch}
.offer .tag{font-family:'Roboto';font-size:12px;font-weight:600;color:var(--grey-60);text-transform:uppercase;letter-spacing:.8px;display:block;margin-bottom:8px}
.offer h3{font-size:clamp(26px,3.2vw,38px);font-weight:500;letter-spacing:-.6px;margin-bottom:12px;transition:transform .35s cubic-bezier(.2,.8,.2,1)}
.offer p{color:var(--muted);font-size:16px;max-width:60ch}
.offer-go{font-family:'Roboto';font-size:30px;color:var(--cobalt-40);align-self:center;transition:transform .35s cubic-bezier(.2,.8,.2,1),color .3s}
.offer-edge{position:absolute;left:0;top:0;bottom:0;width:0;overflow:hidden;transition:width .35s cubic-bezier(.2,.8,.2,1);pointer-events:none}
.offer-edge::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:6px;transform:skewX(-7deg)}
.offer[data-c="cobalt"] .offer-edge::before{background:var(--cobalt)}
.offer[data-c="ruby"] .offer-edge::before{background:var(--ruby)}
.offer[data-c="teal"] .offer-edge::before{background:var(--teal)}
.offer:hover{padding-left:34px;background:linear-gradient(90deg,var(--cobalt-5),transparent 40%)}
.offer[data-c="ruby"]:hover{background:linear-gradient(90deg,var(--ruby-5),transparent 40%)}
.offer[data-c="teal"]:hover{background:linear-gradient(90deg,#eef6fb,transparent 40%)}
.offer:hover .offer-edge{width:34px}
.offer:hover h3{transform:translateX(4px)}
.offer[data-c="cobalt"]:hover .offer-num,.offer[data-c="cobalt"]:hover .offer-go{color:var(--cobalt)}
.offer[data-c="ruby"]:hover .offer-num,.offer[data-c="ruby"]:hover .offer-go{color:var(--ruby)}
.offer[data-c="teal"]:hover .offer-num,.offer[data-c="teal"]:hover .offer-go{color:var(--teal)}
.offer:hover .offer-go{transform:translateX(8px)}

/* ---------- Why band / generic light band ---------- */
.band,.why,.mv,.areas,.direct{background:var(--cobalt-5);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.band-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:60px;align-items:center}
.band-grid h2{font-weight:500;font-size:clamp(26px,3.4vw,38px);letter-spacing:-.6px;margin-bottom:20px}
.band-grid h2 b{font-weight:900;color:var(--ruby)}
.band-grid p{color:var(--grey-80);font-size:16.5px;margin-bottom:16px}
.value-list{display:grid;gap:14px}
.value{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 20px}
.value .v-ic{flex:none;width:42px;height:42px;border-radius:10px;background:var(--cobalt-5);color:var(--cobalt);display:grid;place-items:center}
.value .v-ic svg{width:20px;height:20px}
.value h4{font-family:'Roboto';font-size:16px;font-weight:600;margin-bottom:3px}
.value p{font-size:14px;margin:0;color:var(--muted)}
.volta{font-size:15px;color:var(--grey-70);border-left:3px solid var(--cobalt-40);padding-left:16px;margin-top:22px;max-width:64ch}
.volta b{color:var(--cobalt-dark)}

/* ---------- Deep dives (home) ---------- */
.deep{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}
.deep.rev{direction:rtl}.deep.rev>*{direction:ltr}
.deep-copy h3{font-weight:500;font-size:clamp(24px,3vw,34px);letter-spacing:-.6px;margin:12px 0 16px}
.deep-copy p{color:var(--muted);font-size:16.5px;margin-bottom:18px}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.pill{font-family:'Roboto';font-size:13px;font-weight:500;color:var(--cobalt);background:var(--cobalt-5);border:1px solid var(--cobalt-40);padding:7px 14px;border-radius:999px}
.deep-visual{background:var(--cobalt-dark);border-radius:var(--r);padding:18px 30px;color:#fff}
.deep-visual.ruby{background:var(--ruby-dark)}
.deep-visual.teal{background:var(--cobalt)}
.deep-visual .row{display:flex;justify-content:space-between;gap:20px;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.12);font-size:15px}
.deep-visual .row:last-child{border-bottom:none}
.deep-visual .k{color:rgba(255,255,255,.62)}
.deep-visual .v{font-weight:600;font-family:'Roboto';text-align:right}

/* ---------- Testimonials (home) ---------- */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.quote{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px}
.quote .mark{font-family:'Roboto';font-weight:900;font-size:46px;line-height:.6;color:var(--cobalt-40);height:26px}
.quote p{font-size:15.5px;color:var(--grey-80);margin:14px 0 22px;line-height:1.6}
.quote .who{display:flex;align-items:center;gap:13px}
.quote .who .av{width:44px;height:44px;border-radius:50%;background:var(--cobalt);color:#fff;display:grid;place-items:center;font-family:'Roboto';font-weight:600}
.quote:nth-child(2) .who .av{background:var(--ruby)}
.quote:nth-child(3) .who .av{background:var(--teal)}
.quote .n{font-family:'Roboto';font-weight:600;font-size:14.5px;color:var(--cobalt-dark)}
.quote .t{font-size:13px;color:var(--muted)}

/* ---------- Final CTA / cta-box ---------- */
.final,.cta{padding:84px 0}
.final-box,.cta-box{background:var(--cobalt-dark);border-radius:20px;padding:60px 50px;text-align:center;color:#fff}
.final-box h2,.cta-box h2{color:#fff;font-weight:500;font-size:clamp(26px,3.8vw,42px);letter-spacing:-.6px;margin-bottom:16px}
.final-box h2 b,.cta-box h2 b{font-weight:900}
.final-box>p,.cta-box>p{color:rgba(255,255,255,.8);font-size:17px;max-width:54ch;margin:0 auto 28px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:46px;text-align:left}
.path-grid .path{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:26px;transition:transform .2s,background .2s}
.path-grid .path:hover{transform:translateY(-4px);background:rgba(255,255,255,.1)}
.path-grid .ptag{font-family:'Roboto';font-size:11.5px;letter-spacing:.8px;text-transform:uppercase;font-weight:600;margin-bottom:10px}
.path-grid .path:nth-child(1) .ptag{color:var(--cobalt-40)}
.path-grid .path:nth-child(2) .ptag{color:var(--ruby-60)}
.path-grid .path:nth-child(3) .ptag{color:var(--teal)}
.path-grid h4{font-family:'Roboto';color:#fff;font-size:17px;font-weight:600;margin-bottom:6px}
.path-grid .path p{font-size:14px;color:rgba(255,255,255,.72);margin-bottom:16px}
.path-grid .go{font-family:'Roboto';font-size:14px;font-weight:600;color:#fff;display:inline-flex;gap:6px;align-items:center}

/* ---------- About: mission/vision ---------- */
.mv-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.mv-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:36px;position:relative;overflow:hidden}
.mv-card::before{content:"";position:absolute;left:0;top:0;height:100%;width:4px}
.mv-card.mission::before{background:var(--cobalt)}
.mv-card.vision::before{background:var(--ruby)}
.mv-card h3{font-size:14px;text-transform:uppercase;letter-spacing:1px;color:var(--grey-60);margin-bottom:14px;font-weight:600}
.mv-card p{font-family:'Roboto';font-weight:500;font-size:22px;line-height:1.4;color:var(--cobalt-dark)}
.mv-card.vision p{color:var(--ruby-dark)}

/* ---------- About: values ---------- */
.values{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-top:8px}
.val{padding:24px 20px;border:1px solid var(--line);border-radius:var(--r);transition:transform .25s,border-color .25s}
.val:hover{transform:translateY(-5px);border-color:var(--cobalt-40)}
.val .vn{font-family:'Roboto';font-weight:900;font-style:italic;font-size:19px;color:var(--cobalt);transform:skewX(-7deg);display:inline-block;margin-bottom:10px}
.val:nth-child(2) .vn{color:var(--ruby)}
.val:nth-child(3) .vn{color:var(--teal)}
.val:nth-child(4) .vn{color:var(--cobalt)}
.val:nth-child(5) .vn{color:var(--ruby)}
.val p{font-size:13.5px;color:var(--muted);line-height:1.5}

/* ---------- Dark sections (About network / Enterprise audience / Advisory clients) ---------- */
.net,.audience,.clients{background:var(--cobalt-dark);color:#fff}
.net .kicker,.audience .kicker,.clients .kicker{color:var(--ruby-60)}
.net h2,.audience h2,.clients h2{color:#fff}
.net h2 b,.audience h2 b,.clients h2 b{color:#fff}
.net .net-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:54px;align-items:center}
.net p{color:rgba(255,255,255,.8);max-width:60ch;margin-bottom:16px}
.net .volta{color:rgba(255,255,255,.8);border-left-color:var(--ruby-60)}
.net .volta b{color:#fff}
.net-stats{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.net-stat{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r);padding:24px}
.net-stat .n{font-family:'Roboto';font-weight:900;font-size:34px;color:#fff;letter-spacing:-1px}
.net-stat .d{font-size:13.5px;color:rgba(255,255,255,.7);margin-top:6px}
.net .logos{justify-content:flex-start;gap:12px 30px;margin-top:30px}
.net .logos span{color:#fff;opacity:.5}
.aud-tags,.client-tags{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.aud-tags span,.client-tags span{font-family:'Roboto';font-weight:500;font-size:15px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);padding:10px 18px;border-radius:999px}
.stance{margin-top:28px;border-left:3px solid var(--ruby-60);padding-left:18px;max-width:60ch;color:rgba(255,255,255,.82)}

/* ---------- Enterprise: steps / model / benefits ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:40px}
.step{position:relative;padding:30px 26px;border:1px solid var(--line);border-radius:var(--r);background:#fff}
.step .sn{font-family:'Roboto';font-weight:900;font-style:italic;font-size:34px;color:var(--ruby-60);transform:skewX(-7deg);display:inline-block;margin-bottom:14px}
.step h3{font-size:19px;font-weight:600;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--muted)}
.model{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.model-card{background:var(--cobalt-dark);color:#fff;border-radius:var(--r);padding:18px 32px}
.model-card .row{display:flex;justify-content:space-between;gap:20px;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.12);font-size:15px}
.model-card .row:last-child{border-bottom:none}
.model-card .k{color:rgba(255,255,255,.62)}
.model-card .v{font-weight:600;font-family:'Roboto';text-align:right}
.benefits{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:38px}
.benefit{display:flex;gap:16px;padding:24px;border:1px solid var(--line);border-radius:var(--r);transition:border-color .25s,transform .25s}
.benefit:hover{border-color:var(--ruby-60);transform:translateY(-4px)}
.benefit .bi{flex:none;width:44px;height:44px;border-radius:10px;background:var(--ruby-5);color:var(--ruby);display:grid;place-items:center}
.benefit .bi svg{width:21px;height:21px}
.benefit h4{font-family:'Roboto';font-size:16px;font-weight:600;margin-bottom:4px}
.benefit p{font-size:14px;color:var(--muted)}
/* Enterprise leads with ruby buttons + ruby pills */
.lead-ruby .btn-primary{background:var(--ruby)}
.lead-ruby .btn-primary:hover{background:var(--ruby-dark)}
.lead-ruby .kicker{color:var(--ruby)}
.lead-ruby .pill{color:var(--ruby);background:var(--ruby-5);border-color:var(--ruby-60)}
.lead-ruby .cta-box{background-image:radial-gradient(80% 120% at 80% 0%,rgba(48,54,139,.5),transparent 60%)}

/* ---------- Advisory: strands / expertise areas ---------- */
.strands{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:40px}
.strand{position:relative;border:1px solid var(--line);border-radius:var(--r);padding:38px 34px;overflow:hidden;transition:transform .25s,box-shadow .25s}
.strand::before{content:"";position:absolute;left:0;top:0;height:5px;width:100%}
.strand.eng::before{background:var(--cobalt)}
.strand.ins::before{background:var(--teal)}
.strand:hover{transform:translateY(-5px);box-shadow:0 18px 40px -22px rgba(33,34,78,.4)}
.strand .stag{font-family:'Roboto';font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.7px;margin-bottom:10px;display:block}
.strand.eng .stag{color:var(--cobalt)}
.strand.ins .stag{color:var(--teal)}
.strand h3{font-size:24px;font-weight:600;margin-bottom:12px}
.strand>p{color:var(--muted);font-size:15.5px;margin-bottom:20px}
.strand ul{list-style:none;margin-bottom:24px}
.strand li{font-size:14.5px;color:var(--grey-80);padding-left:24px;position:relative;margin-bottom:10px}
.strand li svg{position:absolute;left:0;top:3px;width:15px;height:15px}
.strand.eng li svg{color:var(--cobalt)}
.strand.ins li svg{color:var(--teal)}
.area-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:38px}
.area{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px}
.area .ai{width:42px;height:42px;border-radius:10px;background:var(--ruby-5);color:var(--ruby);display:grid;place-items:center;margin-bottom:16px}
.area .ai svg{width:20px;height:20px}
.area h4{font-family:'Roboto';font-size:17px;font-weight:600;margin-bottom:6px}
.area p{font-size:14px;color:var(--muted)}

/* ---------- Contact: paths + direct ---------- */
.paths{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:64px}
.path{position:relative;border:1px solid var(--line);border-radius:var(--r);padding:32px 28px;transition:transform .25s,border-color .25s,box-shadow .25s;overflow:hidden;display:flex;flex-direction:column}
.path::before{content:"";position:absolute;left:0;top:0;height:4px;width:100%}
.path.a::before{background:var(--cobalt)}.path.b::before{background:var(--ruby)}.path.c::before{background:var(--teal)}
.path:hover{transform:translateY(-6px);box-shadow:0 18px 40px -22px rgba(33,34,78,.4)}
.path.a:hover{border-color:var(--cobalt-40)}.path.b:hover{border-color:var(--ruby-60)}.path.c:hover{border-color:var(--teal)}
.path .ptag{font-family:'Roboto';font-size:11.5px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;margin-bottom:12px}
.path.a .ptag{color:var(--cobalt)}.path.b .ptag{color:var(--ruby)}.path.c .ptag{color:var(--teal)}
.path h3{font-size:21px;font-weight:600;margin-bottom:8px}
.path>p{color:var(--muted);font-size:15px;margin-bottom:22px;flex:1}
.path .btn{align-self:flex-start}
.path.b .btn-primary{background:var(--ruby)}.path.b .btn-primary:hover{background:var(--ruby-dark)}
.path.c .btn-primary{background:var(--teal)}.path.c .btn-primary:hover{background:var(--teal-dark)}
.direct-grid{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}
.direct h2{margin-bottom:18px}
.direct>div>p{color:var(--muted);max-width:52ch;margin-bottom:24px}
.contact-row{display:flex;align-items:center;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.contact-row:last-child{border-bottom:none}
.contact-row .ic{width:42px;height:42px;flex:none;border-radius:10px;background:#fff;border:1px solid var(--line);color:var(--cobalt);display:grid;place-items:center}
.contact-row .ic svg{width:20px;height:20px}
.contact-row .lbl{font-size:13px;color:var(--grey-60);font-family:'Roboto'}
.contact-row .val{font-family:'Roboto';font-weight:500;font-size:16px;color:var(--cobalt-dark)}
.contact-row a.val:hover{color:var(--cobalt)}
.map-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:34px}
.map-card h4{font-size:16px;margin-bottom:16px}

/* ---------- Footer ---------- */
footer{background:var(--black);color:rgba(255,255,255,.7);padding:56px 0 36px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px}
.foot-grid h5{font-family:'Roboto';color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:.9px;margin-bottom:16px}
.foot-grid a{display:block;color:rgba(255,255,255,.66);font-size:14.5px;margin-bottom:11px;transition:color .2s}
.foot-grid a:hover{color:#fff}
.foot-brand p{margin-top:16px;font-size:14px;max-width:36ch;color:rgba(255,255,255,.6)}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:44px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.5);flex-wrap:wrap;gap:12px}

/* ---------- Battery 101 callout (BatteryMBA page) ---------- */
.startwith{display:flex;align-items:center;justify-content:space-between;gap:30px;background:var(--cobalt-5);border:1px solid var(--line);border-left:5px solid var(--cobalt);border-radius:var(--r);padding:32px 36px}
.startwith-text{max-width:60ch}
.startwith h3{font-size:24px;font-weight:600;margin:8px 0 8px}
.startwith p{color:var(--muted);font-size:15.5px}
.startwith .btn{flex:none}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .stats{grid-template-columns:repeat(2,1fr)}
  .quotes,.path-grid,.paths,.steps,.benefits,.area-grid,.strands,.values{grid-template-columns:1fr}
  .values{grid-template-columns:1fr 1fr}
  .band-grid,.deep,.net-grid,.model,.direct-grid,.mv-grid{grid-template-columns:1fr;gap:30px}
  .deep.rev{direction:ltr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .nav-inner{flex-wrap:wrap;position:relative}
  .nav-links{display:none;flex-direction:column;align-items:flex-start;gap:0;width:100%;order:3;padding:14px 0 6px;border-top:1px solid var(--line);margin-top:14px}
  .nav-links.open{display:flex}
  .nav-links a{padding:10px 0;font-size:16px;width:100%}
  .nav-cta .btn-ghost{display:none}
  .menu-toggle{display:block}
  .offer{grid-template-columns:auto 1fr;gap:18px 20px}
  .offer-go{display:none}
  .offer-num{font-size:30px;min-width:46px}
  .offer:hover{padding-left:18px}
  .startwith{flex-direction:column;align-items:flex-start;gap:20px}
  .h1-br{display:none}
  .cred .logos span{white-space:normal}
  .wrap{padding:0 18px}
  .final-box,.cta-box{padding:44px 22px}
  .mv-card,.map-card,.strand,.quote{padding:24px}
  .startwith{padding:24px}
}
/* ---------- Official logo image ---------- */
.ba-logo{height:44px;width:auto;display:block;flex:none}
.on-dark .ba-logo{filter:brightness(0) invert(1)}
.logo-lockup{display:inline-flex;align-items:center}