/* ============================================================
   Earthlink Broadband - shared styles
   BRAND SWAP: change --brand and --brand-2 below to your colours.
   ============================================================ */
:root{
  --brand:#21A7E0;       /* Earth Link blue */
  --brand-2:#4FC3EC;     /* lighter tint */
  --radius:12px;
  --max:1120px;
  --font:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;
}
html[data-theme="light"]{
  --bg:#f5f7f9; --surface:#ffffff; --surface-2:#fafbfc;
  --text:#0e1726; --muted:#5c6b80; --line:#e4e8ee;
  --accent:var(--brand); --accent-2:var(--brand-2); --accent-ink:#ffffff; --accent-weak:#e8f5fc;
  --shadow:0 1px 2px rgba(15,23,42,.05); --shadow-lg:0 12px 40px rgba(15,23,42,.12);
  --stream:rgba(33,167,224,.30);
}
html[data-theme="dark"]{
  --bg:#0a111e; --surface:#111a2e; --surface-2:#0e1626;
  --text:#e8eef8; --muted:#93a2ba; --line:#20304a;
  --accent:#4FC3EC; --accent-2:#8AD6F2; --accent-ink:#062231; --accent-weak:#0f2740;
  --shadow:none; --shadow-lg:0 14px 44px rgba(0,0,0,.5);
  --stream:rgba(79,195,236,.45);
}

*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.6;
  -webkit-font-smoothing:antialiased;display:flex;flex-direction:column;min-height:100vh;position:relative}
a{color:inherit}
img{max-width:100%;display:block}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
.narrow{max-width:820px}

/* animated background */
.bg{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none}
.bg .glow{position:absolute;width:55vw;height:55vw;border-radius:50%;
  background:radial-gradient(circle,var(--accent-weak),transparent 60%);top:-18vw;right:-8vw;opacity:.55;filter:blur(20px)}
.bg .stream{position:absolute;height:2px;width:38%;left:-40%;
  background:linear-gradient(90deg,transparent,var(--stream),transparent);filter:blur(.4px);animation:flow linear infinite}
.bg .stream:nth-child(2){top:18%;animation-duration:11s;opacity:.5}
.bg .stream:nth-child(3){top:40%;animation-duration:15s;animation-delay:2.5s;opacity:.32;height:1px}
.bg .stream:nth-child(4){top:66%;animation-duration:9s;animation-delay:1s;opacity:.55}
.bg .stream:nth-child(5){top:85%;animation-duration:17s;animation-delay:4s;opacity:.28;height:1px}
@keyframes flow{from{transform:translateX(0)}to{transform:translateX(280vw)}}
body>header,body>main,body>footer{position:relative;z-index:1}

/* nav */
header.site{background:color-mix(in srgb,var(--surface) 88%,transparent);backdrop-filter:saturate(1.2) blur(8px);
  border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.nav{display:flex;align-items:center;gap:20px;padding:14px 0}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit;font-weight:700;letter-spacing:-.2px}
.logo .mark{width:26px;height:26px;border-radius:7px;background:linear-gradient(135deg,var(--brand),var(--brand-2));
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:14px;flex:none}
.logo .name{font-size:16px;line-height:1}
.logo .name span{display:block;font-size:10.5px;color:var(--muted);font-weight:500;letter-spacing:.3px;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:12px}
.nav-links a{text-decoration:none;color:var(--muted);font-size:14.5px;font-weight:550;padding:8px 12px;border-radius:8px;
  transition:color .14s,background .14s}
.nav-links a:hover{color:var(--text);background:var(--accent-weak)}
.nav-links a.active{color:var(--accent)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;gap:8px;text-decoration:none;font-weight:600;font-size:14.5px;
  padding:10px 18px;border-radius:10px;cursor:pointer;border:1px solid transparent;transition:filter .15s,transform .08s,box-shadow .15s,background .15s,color .15s}
.btn.primary{background:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(1.06);box-shadow:0 8px 22px color-mix(in srgb,var(--accent) 32%,transparent)}
.btn.primary:active{transform:translateY(1px)}
.btn.ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn.ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn.lg{padding:13px 24px;font-size:15.5px}
.toggle{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;
  border:1px solid var(--line);background:var(--surface-2);border-radius:9px;color:var(--muted);cursor:pointer;
  transition:color .15s,border-color .15s,transform .15s;flex:none}
.toggle:hover{color:var(--accent);border-color:var(--accent);transform:rotate(-12deg)}
.toggle:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.toggle svg{width:18px;height:18px}
html[data-theme="dark"] .toggle .i-sun{display:block} html[data-theme="dark"] .toggle .i-moon{display:none}
html[data-theme="light"] .toggle .i-sun{display:none} html[data-theme="light"] .toggle .i-moon{display:block}
.burger{display:none;width:38px;height:38px;border:1px solid var(--line);background:var(--surface-2);border-radius:9px;
  color:var(--text);cursor:pointer;align-items:center;justify-content:center}
.burger svg{width:20px;height:20px}

/* hero */
.hero{padding:76px 0 44px}
.hero.center{text-align:center}
.eyebrow{display:inline-block;color:var(--accent);font-weight:600;font-size:12.5px;letter-spacing:.7px;
  text-transform:uppercase;margin:0 0 16px;padding:5px 12px;border:1px solid var(--line);border-radius:999px;background:var(--surface)}
h1{font-size:clamp(32px,5.4vw,54px);line-height:1.08;letter-spacing:-1px;margin:0 0 18px;font-weight:780}
.hero p.lead{color:var(--muted);font-size:clamp(16px,2vw,19px);max-width:60ch;margin:0 0 28px}
.hero.center p.lead{margin-left:auto;margin-right:auto}
.cta-row{display:flex;gap:12px;flex-wrap:wrap}
.hero.center .cta-row{justify-content:center}

/* generic sections */
main{flex:1 0 auto}
.section{padding:56px 0}
.section h2{font-size:clamp(24px,3.4vw,34px);line-height:1.15;letter-spacing:-.6px;margin:0 0 12px;font-weight:750}
.section .sub{color:var(--muted);max-width:64ch;margin:0 0 36px;font-size:16px}
.section.center{text-align:center}
.section.center .sub{margin-left:auto;margin-right:auto}
.section.alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* stat strip */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;text-align:center;box-shadow:var(--shadow)}
.stat .n{font-size:28px;font-weight:780;letter-spacing:-.5px}
.stat .l{color:var(--muted);font-size:13.5px;margin-top:4px}

/* feature grid */
.grid{display:grid;gap:18px}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);
  transition:transform .16s,box-shadow .16s,border-color .16s}
.card.hover:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--accent)}
.card .ic{width:44px;height:44px;border-radius:11px;background:var(--accent-weak);color:var(--accent);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.card .ic svg{width:22px;height:22px}
.card h3{font-size:17px;font-weight:680;margin:0 0 8px;letter-spacing:-.2px}
.card p{color:var(--muted);font-size:14.5px;margin:0}

/* plans */
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.plan{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);
  display:flex;flex-direction:column;position:relative;transition:transform .16s,box-shadow .16s,border-color .16s}
.plan:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.plan.featured{border-color:var(--accent);border-width:2px}
.plan .tag{position:absolute;top:-11px;left:26px;background:var(--accent);color:var(--accent-ink);font-size:11px;font-weight:700;
  letter-spacing:.4px;text-transform:uppercase;padding:4px 10px;border-radius:999px}
.plan .pname{font-size:15px;font-weight:650;color:var(--muted)}
.plan .speed{font-size:38px;font-weight:800;letter-spacing:-1px;margin:6px 0 2px}
.plan .speed u{font-size:15px;color:var(--muted);text-decoration:none;font-weight:500;margin-left:4px}
.plan .price{font-size:15px;color:var(--muted);margin-bottom:18px}
.plan .price b{color:var(--text);font-size:22px;font-weight:750}
.plan ul{list-style:none;margin:0 0 22px;padding:0;display:flex;flex-direction:column;gap:10px}
.plan li{font-size:14px;color:var(--muted);display:flex;align-items:flex-start;gap:9px}
.plan li svg{width:16px;height:16px;color:var(--accent);flex:none;margin-top:2px}
.plan .btn{margin-top:auto;justify-content:center}

/* coverage */
.areas{display:flex;flex-wrap:wrap;gap:10px}
.chip{background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:9px 16px;font-size:14px;font-weight:550}
.chip.soon{opacity:.6}

/* forms */
.form{display:grid;gap:16px;max-width:560px}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:13.5px;font-weight:600}
.field input,.field textarea,.field select{font-family:inherit;font-size:15px;color:var(--text);background:var(--surface);
  border:1px solid var(--line);border-radius:10px;padding:12px 14px;transition:border-color .14s,box-shadow .14s}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--accent);
  box-shadow:0 0 0 3px var(--accent-weak)}
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:start}
.contact-list{display:flex;flex-direction:column;gap:18px}
.contact-item{display:flex;gap:14px;align-items:flex-start}
.contact-item .ic{width:40px;height:40px;border-radius:10px;background:var(--accent-weak);color:var(--accent);
  display:flex;align-items:center;justify-content:center;flex:none}
.contact-item .ic svg{width:19px;height:19px}
.contact-item .t{font-weight:640;font-size:14.5px}
.contact-item .v{color:var(--muted);font-size:14px}
.contact-item a{color:var(--accent);text-decoration:none}

/* cta band */
.band{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;border-radius:16px;padding:44px;text-align:center;
  box-shadow:var(--shadow-lg)}
.band h2{color:#fff;margin:0 0 10px}
.band p{color:rgba(255,255,255,.9);margin:0 0 24px;font-size:16px}
.band .btn{background:#fff;color:var(--brand)}
.band .btn:hover{filter:brightness(.97)}

/* prose (about) */
.prose p{color:var(--muted);font-size:16px;max-width:70ch;margin:0 0 18px}
.prose h2{margin-top:36px}

/* footer */
footer.site{border-top:1px solid var(--line);background:var(--surface);margin-top:56px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding:48px 0 28px}
.foot-brand p{color:var(--muted);font-size:14px;max-width:34ch;margin:14px 0 0}
.foot-col h4{font-size:13px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);margin:0 0 14px}
.foot-col a{display:block;text-decoration:none;color:var(--text);font-size:14.5px;padding:5px 0;transition:color .14s}
.foot-col a:hover{color:var(--accent)}
.foot-bottom{border-top:1px solid var(--line);padding:18px 0;display:flex;flex-wrap:wrap;gap:8px 16px;
  align-items:center;font-size:12.5px;color:var(--muted)}
.foot-bottom .mono{font-family:var(--mono)} .foot-bottom .sep{opacity:.5}

/* entrance */
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
.anim{opacity:0;animation:rise .55s cubic-bezier(.2,.7,.2,1) forwards}
.anim.d1{animation-delay:.05s}.anim.d2{animation-delay:.13s}.anim.d3{animation-delay:.21s}.anim.d4{animation-delay:.29s}

/* mobile nav panel */
.mnav{display:none}
@media(prefers-reduced-motion:reduce){.bg .stream{animation:none}.anim{opacity:1;animation:none}.card.hover:hover,.plan:hover{transform:none}}
@media(max-width:900px){
  .stats,.grid.c4,.plans{grid-template-columns:repeat(2,1fr)}
  .grid.c3{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr;gap:28px}
}
@media(max-width:680px){
  .nav-links{display:none}
  .burger{display:inline-flex}
  .nav-right .btn.primary{display:none}
  .mnav.open{display:block;border-top:1px solid var(--line);background:var(--surface)}
  .mnav a{display:block;text-decoration:none;color:var(--text);font-weight:600;padding:14px 24px;border-bottom:1px solid var(--line)}
  .mnav a:last-child{border-bottom:0}
  .stats,.grid.c4,.plans{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .band{padding:32px 22px}
  .hero{padding:52px 0 32px}
}

/* ---- brand logo (theme-aware) ---- */
.logo img{height:38px;width:auto;display:block}
.logo .lg-dark{display:none}
html[data-theme="dark"] .logo .lg-light{display:none}
html[data-theme="dark"] .logo .lg-dark{display:block}
.foot-brand .logo img{height:44px}
@media(max-width:680px){.logo img{height:32px}}