/* ====================================================================
   BLUMI SOLAR — SHARED DESIGN SYSTEM
   ==================================================================== */

:root {
  --bg:       #FAFAFA;
  --bg-alt:   #F2F2F4;
  --bg-dark:  #0A0F1A;
  --ink:      #0D1116;
  --ink-2:    #1F2530;
  --muted:    #6B7280;
  --muted-2:  #9AA1AB;
  --line:     #E7E7EA;
  --line-2:   #D8D9DD;
  --navy:     #0B1A3D;
  --navy-2:   #14306B;
  --sky:      #7BB3E8;
  --sky-soft: #DCEAF8;
  --amber:    #F5A623;
  --amber-2:  #E89512;
  --green:    #5C8A6E;
  --radius-s: 10px;
  --radius:   18px;
  --radius-l: 28px;
  --shadow-s: 0 1px 2px rgba(11,36,71,.04), 0 2px 8px rgba(11,36,71,.04);
  --shadow:   0 2px 6px rgba(11,36,71,.05), 0 12px 40px rgba(11,36,71,.07);
  --shadow-l: 0 30px 80px -20px rgba(11,36,71,.18), 0 8px 24px rgba(11,36,71,.08);
}

/* ---------- Reset ---------- */
*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--ink);
  font-family:'Geist',-apple-system,BlinkMacSystemFont,sans-serif;
  font-weight:400;font-size:17px;line-height:1.55;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  letter-spacing:-0.005em;
}
::selection{background:var(--navy);color:#fff}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}

/* ---------- Typography ---------- */
.eyebrow{
  font-family:'Geist Mono',monospace;font-size:12px;
  letter-spacing:.12em;text-transform:uppercase;
  color:var(--navy);font-weight:500;
}
.eyebrow.muted{color:var(--muted)}
.eyebrow.amber{color:var(--amber-2)}
.eyebrow.on-dark{color:var(--sky)}
h1,h2,h3,h4{
  font-family:'Geist',sans-serif;font-weight:500;
  letter-spacing:-0.025em;line-height:1.05;
  color:var(--ink);margin:0;text-wrap:balance;
}
h1{font-size:clamp(44px,6.4vw,92px);letter-spacing:-0.032em}
h2{font-size:clamp(38px,4.6vw,64px);letter-spacing:-0.028em}
h3{font-size:clamp(24px,2.2vw,32px);letter-spacing:-0.02em}
h4{font-size:18px;font-weight:500;letter-spacing:-0.01em}
.lede{
  font-size:clamp(18px,1.5vw,22px);line-height:1.45;
  color:var(--muted);font-weight:400;text-wrap:pretty;max-width:56ch;
}
.on-dark{color:#F2F2F4}
.on-dark .lede{color:#A5ACB8}
.on-dark h1,.on-dark h2,.on-dark h3,.on-dark h4{color:#fff}

/* ---------- Layout ---------- */
.container{max-width:1200px;margin:0 auto;padding:0 28px}
.container-narrow{max-width:920px;margin:0 auto;padding:0 28px}
section{padding:56px 0;position:relative}
section.tight{padding:36px 0}
section .container>.eyebrow+h2,
section .container-narrow>.eyebrow+h2{margin-top:18px}
section .container>h2+.lede,
section .container-narrow>h2+.lede{margin-top:24px}
.section-dark{background:var(--bg-dark);color:#F2F2F4}
.section-dark .eyebrow{color:var(--sky)}
.section-alt{background:var(--bg-alt)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 22px;border-radius:999px;font-size:15px;
  font-weight:500;letter-spacing:-0.005em;
  transition:transform .2s,background .2s,color .2s,box-shadow .2s;
  white-space:nowrap;
}
.btn-primary{background:var(--navy);color:#fff}
.btn-primary:hover{background:var(--navy-2);transform:translateY(-1px)}
.btn-amber{background:var(--amber);color:#1B1300}
.btn-amber:hover{background:var(--amber-2);transform:translateY(-1px)}
.btn-ghost{color:var(--ink);padding:14px 18px}
.btn-ghost:hover{color:var(--navy)}
.btn-ghost .arrow{transition:transform .2s}
.btn-ghost:hover .arrow{transform:translateX(3px)}
.btn-outline{color:var(--navy);border:1px solid var(--line-2);padding:14px 22px}
.btn-outline:hover{border-color:var(--navy);transform:translateY(-1px)}
.on-dark .btn-ghost{color:#F2F2F4}
.on-dark .btn-primary{background:#fff;color:var(--ink)}
.on-dark .btn-primary:hover{background:#E9E9EC}

/* ---------- Nav ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(250,250,250,.78);
  backdrop-filter:saturate(180%) blur(20px);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid rgba(11,36,71,.06);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:60px;max-width:1200px;margin:0 auto;padding:0 28px;
}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:500;letter-spacing:-0.015em;font-size:18px}
.brand-logo{height:26px;width:auto;display:block}
.brand-solar{
  font-family:'Geist',sans-serif;font-size:11px;letter-spacing:.32em;
  text-transform:uppercase;color:var(--muted);font-weight:400;
  padding-left:10px;margin-left:2px;border-left:1px solid var(--line);
  transform:translateY(1px);
}
.on-dark .brand-solar{color:var(--muted-2);border-left-color:rgba(255,255,255,.12)}
.brand-tile{width:30px;height:30px;border-radius:8px;overflow:hidden;background:var(--navy);flex:0 0 auto}
.brand-tile img{width:100%;height:100%;object-fit:cover;display:block}
.nav-links{display:flex;gap:28px;font-size:14px;color:var(--ink-2)}
.nav-links a{transition:color .15s}
.nav-links a:hover{color:var(--navy)}
.nav-links a.active{color:var(--navy);font-weight:500}
.nav-cta{display:flex;align-items:center;gap:6px}
.nav .btn{padding:9px 16px;font-size:13px}
@media(max-width:800px){
  .nav-inner{height:auto;min-height:60px;flex-wrap:wrap;gap:10px;padding:10px 20px}
  .nav-links{order:3;width:100%;display:flex;gap:18px;overflow-x:auto;padding:2px 0 4px;font-size:13px;white-space:nowrap;-webkit-overflow-scrolling:touch}
  .nav-links::-webkit-scrollbar{display:none}
  .nav-cta{margin-left:auto}
}
@media(max-width:560px){
  .brand-solar{display:none}
  .nav-cta .btn-ghost{display:none}
  .nav .btn{padding:8px 13px}
}

/* ---------- Footer ---------- */
footer{
  background:var(--bg-dark);color:#9AA1AB;
  padding:60px 0 40px;border-top:1px solid rgba(255,255,255,.06);
}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
@media(max-width:800px){.foot-grid{grid-template-columns:1fr 1fr}}
.foot-grid .brand{color:#fff}
.foot-grid h5{
  font-family:'Geist Mono',monospace;font-size:11px;letter-spacing:.08em;
  text-transform:uppercase;color:var(--muted-2);font-weight:500;margin:0 0 16px;
}
.foot-grid ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:10px;font-size:14px}
.foot-grid li a:hover{color:#fff}
.foot-bottom{
  margin-top:60px;padding-top:24px;border-top:1px solid rgba(255,255,255,.06);
  display:flex;justify-content:space-between;color:var(--muted-2);
  font-size:12px;font-family:'Geist Mono',monospace;
}
@media(max-width:600px){.foot-bottom{flex-direction:column;gap:8px}}

/* ---------- Page hero (inner pages) ---------- */
.page-hero{padding:64px 0 40px;text-align:center}
.page-hero h1{font-size:clamp(38px,5vw,72px);max-width:18ch;margin:18px auto 0}
.page-hero .lede{margin:24px auto 0}

/* ---------- Common card ---------- */
.card{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:32px;
  box-shadow:var(--shadow-s);
}
.card-dark{
  background:var(--bg-dark);border-color:rgba(255,255,255,.08);
  color:#F2F2F4;
}

/* ---------- FAQ (shared) ---------- */
.faq{margin-top:32px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;justify-content:space-between;align-items:center;
  padding:28px 0;text-align:left;font-size:19px;font-weight:500;
  color:var(--ink);letter-spacing:-0.015em;
}
.faq-q .plus{width:22px;height:22px;position:relative;flex:0 0 auto;transition:transform .25s}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:var(--ink-2);
  top:50%;left:50%;transform:translate(-50%,-50%);
}
.faq-q .plus::before{width:14px;height:1.5px}
.faq-q .plus::after{width:1.5px;height:14px;transition:transform .25s}
.faq-item.open .faq-q .plus::after{transform:translate(-50%,-50%) rotate(90deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;color:var(--muted)}
.faq-a-inner{padding:0 0 28px;font-size:15.5px;line-height:1.6;max-width:72ch}
.faq-a-inner p{margin:0}
.faq-a-inner p + p{margin-top:14px}

/* ---------- Pricing cards (shared) ---------- */
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:900px){.pricing-grid{grid-template-columns:1fr}}
.price-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:36px 32px;display:flex;flex-direction:column;position:relative;
  transition:transform .2s,box-shadow .2s;
}
.price-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.price-card .tier{
  font-family:'Geist Mono',monospace;font-size:11px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--muted);
}
.price-card h4{margin-top:8px;font-size:28px;font-weight:500;letter-spacing:-0.025em}
.price-card .desc{margin-top:12px;color:var(--muted);font-size:14.5px;line-height:1.5;min-height:64px}
.price-card .price-meta{
  margin-top:20px;padding-top:20px;border-top:1px solid var(--line);
  color:var(--muted);font-size:13px;font-family:'Geist Mono',monospace;
}
.price-card .price-meta .ix{
  display:block;font-size:24px;font-weight:500;color:var(--ink);
  margin-bottom:4px;font-family:'Geist',sans-serif;letter-spacing:-0.02em;
}
.price-card .cta{margin-top:28px}
.price-card.featured{background:var(--navy);color:#fff;border-color:var(--navy);position:relative}
.price-card.featured .tier{color:var(--sky)}
.price-card.featured h4{color:#fff}
.price-card.featured .desc{color:#C7CCD4}
.price-card.featured .price-meta{border-color:rgba(255,255,255,.1);color:var(--muted-2)}
.price-card.featured .price-meta .ix{color:#fff}
.price-card.featured .btn-primary{background:var(--amber);color:#1B1300}
.price-card.featured .btn-primary:hover{background:var(--amber-2)}

/* ---------- CTA banner (shared) ---------- */
.cta-banner{
  padding:88px 0;background:var(--bg-dark);color:#fff;
  text-align:center;position:relative;overflow:hidden;
}
.cta-banner::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(ellipse at 50% 100%,rgba(245,166,35,.18) 0%,transparent 60%),
    radial-gradient(ellipse at 20% 0%,rgba(123,179,232,.1) 0%,transparent 50%);
}
.cta-banner .container{position:relative}
.cta-banner h2{color:#fff;max-width:18ch;margin:0 auto}
.cta-banner .lede{color:#B7BCC4;margin:28px auto 0}
.cta-banner .cta-row{display:flex;gap:12px;justify-content:center;margin-top:40px;flex-wrap:wrap}
.cta-banner .btn-ghost{color:#F2F2F4;border:1px solid rgba(255,255,255,.18)}
.cta-banner .btn-ghost:hover{color:#fff;border-color:rgba(255,255,255,.32)}
.cta-banner .micro{
  margin-top:24px;font-family:'Geist Mono',monospace;
  font-size:12px;color:var(--muted-2);letter-spacing:.04em;
}