/* 2econdWind Technology — "Beacon" theme, 2026-09-27
   Deep-navy dark theme; cyan accent drawn from the logo.
   Concept: a lifeline of light in dark water. */
:root{
  --bg:#14171c; --bg-soft:#1b1f26; --card:rgba(255,255,255,.05); --line:rgba(200,215,228,.22);
  --text:#edf1f5; --muted:#a7b0ba;
  --cyan:#6fd3f2; --cyan-deep:#1f9dd4; --cyan-dim:rgba(111,211,242,.12);
  --navy-ink:#06222f;
  --radius:16px; --maxw:1120px;
  --font-display:"Sora",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --font-body:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font-body);line-height:1.65;font-size:17px;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--font-display);line-height:1.18;letter-spacing:-.5px}
a{color:var(--cyan);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
/* header */
header.site{position:sticky;top:0;z-index:50;background:rgba(20,23,28,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;max-width:var(--maxw);margin:0 auto;padding:10px 24px}
.brand img{height:52px;width:auto;display:block;filter:drop-shadow(0 0 14px rgba(111,211,242,.55))}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{color:var(--text);font-size:15px;font-weight:500}
.nav-links a:not(.btn):hover{color:var(--cyan);text-decoration:none}
.btn{display:inline-block;background:linear-gradient(135deg,#8fe0fa,#2aa9de);color:var(--navy-ink);font-weight:700;padding:13px 28px;border-radius:12px;border:0;cursor:pointer;font-size:16px;font-family:var(--font-body);transition:transform .15s ease,box-shadow .15s ease;text-align:center;box-shadow:0 4px 24px rgba(111,211,242,.4),0 0 44px rgba(111,211,242,.18)}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 36px rgba(111,211,242,.6),0 0 70px rgba(111,211,242,.3);text-decoration:none;color:var(--navy-ink)}
.btn-ghost{background:rgba(111,211,242,.06);color:var(--text);border:1px solid rgba(148,199,233,.3);box-shadow:none}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);box-shadow:0 0 24px rgba(111,211,242,.15)}
/* hero — the beacon */
.hero{padding:120px 0 100px;text-align:center;background:
  radial-gradient(ellipse 75% 60% at 50% -5%, rgba(111,211,242,.22), transparent 70%),
  radial-gradient(ellipse 50% 38% at 50% 0%, rgba(42,169,222,.16), transparent 70%),
  linear-gradient(180deg,#262b33,var(--bg));position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;top:-40%;left:50%;transform:translateX(-50%);width:80%;height:90%;background:radial-gradient(ellipse at center,rgba(111,211,242,.14),transparent 65%);pointer-events:none;animation:breathe 7s ease-in-out infinite}
@keyframes breathe{0%,100%{opacity:.65;transform:translateX(-50%) scale(1)}50%{opacity:1;transform:translateX(-50%) scale(1.08)}}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,transparent,rgba(111,211,242,.5),transparent);box-shadow:0 0 18px rgba(111,211,242,.4)}
.eyebrow{display:inline-block;color:var(--cyan);text-transform:uppercase;letter-spacing:3.5px;font-size:13px;font-weight:700;margin-bottom:22px;text-shadow:0 0 22px rgba(111,211,242,.8),0 0 60px rgba(111,211,242,.35)}
.hero h1{font-size:clamp(36px,5.4vw,60px);margin-bottom:22px;max-width:820px;margin-left:auto;margin-right:auto;text-shadow:0 2px 30px rgba(0,0,0,.5),0 0 80px rgba(111,211,242,.12)}
.hero p.lead{color:var(--muted);font-size:19px;max-width:700px;margin:0 auto 36px}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.truststrip{margin-top:46px;color:var(--muted);font-size:14px;letter-spacing:.4px}
/* sections */
section.block{padding:72px 0;position:relative}
section.block:nth-of-type(even)::before{content:"";position:absolute;top:10%;left:50%;transform:translateX(-50%);width:80%;height:70%;background:radial-gradient(ellipse at center,rgba(111,211,242,.06),transparent 65%);pointer-events:none}
section.block h2{font-size:clamp(28px,3.6vw,38px);margin-bottom:14px}
section.block h2::after{content:"";display:block;width:163px;height:3px;margin-top:14px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),transparent);box-shadow:0 0 12px rgba(111,211,242,.7)}
section.block .sub{color:var(--muted);font-size:17px;max-width:700px;margin-bottom:38px}
section.block .sub strong{color:var(--text)}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px;transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);position:relative;overflow:hidden}
.card::before{content:"";position:absolute;top:0;left:10%;right:10%;height:1px;background:linear-gradient(90deg,transparent,rgba(111,211,242,.55),transparent);opacity:.55}
.card:hover{border-color:rgba(111,211,242,.6);transform:translateY(-4px);box-shadow:0 16px 44px rgba(0,0,0,.45),0 0 40px rgba(111,211,242,.2),inset 0 0 30px rgba(111,211,242,.05)}
.card:hover::before{opacity:1;box-shadow:0 0 14px rgba(111,211,242,.8)}
.card h3{font-size:19px;margin-bottom:10px;color:var(--text)}
.card p{color:var(--muted);font-size:15px;margin-bottom:16px}
.card a{font-size:15px;font-weight:600}
.cols3{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:28px}
.why h3{font-size:19px;margin-bottom:8px;color:var(--cyan)}
.why p{color:var(--muted);font-size:15px}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px}
.step .n{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:var(--cyan-dim);color:var(--cyan);font-weight:800;font-size:17px;margin-bottom:16px;box-shadow:0 0 22px rgba(111,211,242,.45),inset 0 0 12px rgba(111,211,242,.15);font-family:var(--font-display);border:1px solid rgba(111,211,242,.35)}
.step h3{font-size:17px;margin-bottom:8px}
.step p{color:var(--muted);font-size:15px}
/* cta band */
.ctaband{background:linear-gradient(135deg,rgba(111,211,242,.13),rgba(42,169,222,.05));border:1px solid rgba(111,211,242,.4);border-radius:20px;padding:64px 40px;text-align:center;margin:32px 0;position:relative;overflow:hidden;box-shadow:0 0 80px rgba(111,211,242,.14),inset 0 0 60px rgba(111,211,242,.05)}
.ctaband::before{content:"";position:absolute;top:-60%;left:50%;transform:translateX(-50%);width:75%;height:130%;background:radial-gradient(ellipse at center,rgba(111,211,242,.2),transparent 70%);pointer-events:none;animation:breathe 7s ease-in-out infinite}
.ctaband h2{font-size:clamp(28px,3.6vw,38px);margin-bottom:12px;position:relative}
.ctaband p{color:var(--muted);margin-bottom:28px;font-size:17px;position:relative}
.ctaband .btn,.ctaband .hamburger{position:relative}
/* forms */
.formwrap{max-width:640px;margin:0 auto;background:rgba(148,199,233,.05);border:1px solid var(--line);border-radius:20px;padding:46px 42px;box-shadow:0 20px 60px rgba(0,0,0,.4);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.field{margin-bottom:20px}
.field label{display:block;font-weight:600;font-size:15px;margin-bottom:8px;color:var(--text)}
.field input,.field select,.field textarea{width:100%;background:rgba(20,23,28,.7);border:1px solid var(--line);border-radius:10px;padding:13px 16px;color:var(--text);font-size:16px;font-family:var(--font-body)}
.field select option{background:#1b1f26}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(111,211,242,.15)}
.field textarea{min-height:130px;resize:vertical}
.field .hint{font-size:13px;color:var(--muted);margin-top:6px;font-weight:400}
.formmsg{margin-top:18px;font-weight:600}
.formmsg.ok{color:var(--cyan)}
.formmsg.err{color:#ff7b7b}
/* footer */
footer.site{border-top:1px solid var(--line);margin-top:64px;padding:48px 0 32px;background:#0e1013}
.foot{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.foot h4{font-size:14px;text-transform:uppercase;letter-spacing:1.5px;color:var(--muted);margin-bottom:14px}
.foot a{display:block;color:var(--text);font-size:15px;margin-bottom:10px}
.foot a:hover{color:var(--cyan)}
.fine{max-width:var(--maxw);margin:32px auto 0;padding:20px 24px 0;border-top:1px solid var(--line);color:var(--muted);font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
/* page hero (interior) */
.pagehero{padding:84px 0 54px;text-align:center;background:
  radial-gradient(ellipse 60% 50% at 50% -5%, rgba(111,211,242,.12), transparent 70%),
  linear-gradient(180deg,#0c1a2e,var(--bg))}
.pagehero h1{font-size:clamp(32px,4.6vw,48px);margin-bottom:14px}
.pagehero p{color:var(--muted);font-size:18px;max-width:660px;margin:0 auto}
/* mobile menu */
.hamburger{display:none;background:none;border:0;cursor:pointer;padding:10px}
.hamburger span{display:block;width:26px;height:3px;background:var(--text);margin:5px 0;border-radius:2px;transition:.2s}
.mobile-menu{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(14,16,19,.96);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);z-index:100;padding:80px 32px 32px}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;color:var(--text);font-size:24px;font-weight:600;padding:14px 0;border-bottom:1px solid var(--line);font-family:var(--font-display)}
.mobile-menu a:hover{color:var(--cyan);text-decoration:none}
.mobile-menu .btn{margin-top:24px;font-size:18px;font-family:var(--font-body)}
.menu-close{position:absolute;top:20px;right:24px;background:none;border:0;color:var(--text);font-size:36px;cursor:pointer;line-height:1}
/* responsive */
@media(max-width:820px){
  .nav-links a:not(.btn){display:none}
  .hamburger{display:block}
  .hero{padding:72px 0 60px}
  section.block{padding:52px 0}
  .formwrap{padding:32px 24px}
  .ctaband{padding:44px 24px}
}
/* second-wind story */
section.surge{background:radial-gradient(ellipse 65% 75% at 50% 50%, rgba(111,211,242,.1), transparent 70%)}
.story{max-width:780px;margin:0 auto;text-align:center}
.story .eyebrow{margin-bottom:16px}
.story p{color:var(--muted);font-size:18px;margin-bottom:20px}
.story p strong{color:var(--text)}
.story .burst{font-family:var(--font-display);font-size:clamp(21px,2.8vw,27px);line-height:1.45;color:var(--text);
  text-shadow:0 0 34px rgba(111,211,242,.4);margin:30px 0;padding:6px 0}
.story h2::after{margin-left:auto;margin-right:auto}
/* product card */
.product{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:36px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:20px;padding:36px;position:relative;overflow:hidden}
.product::before{content:"";position:absolute;top:0;left:10%;right:10%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(111,211,242,.55),transparent);opacity:.55}
.product .shot{background:#f4f4f5;border-radius:14px;overflow:hidden;box-shadow:0 18px 50px rgba(0,0,0,.45)}
.product .shot img{display:block;width:100%;height:auto}
.product h3{font-size:24px;margin-bottom:6px}
.product .price{font-family:var(--font-display);font-size:20px;color:var(--cyan);font-weight:700;margin-bottom:14px;
  text-shadow:0 0 18px rgba(111,211,242,.4)}
.product p{color:var(--muted);font-size:16px;margin-bottom:14px}
.product .colors{font-size:14px;color:var(--muted);margin-bottom:20px}
@media(max-width:820px){.product{grid-template-columns:1fr;padding:24px}}

/* Blog article typography */
.article{max-width:760px;margin:0 auto}
.article p{color:var(--muted);font-size:18px;margin-bottom:22px}
.article p strong{color:var(--text)}
.article .lede{font-size:21px;color:var(--text);line-height:1.6}
.article h3{font-size:22px;margin:38px 0 12px}
.article ul{color:var(--muted);font-size:18px;margin:0 0 22px;padding-left:22px;display:grid;gap:10px}
.article ul strong{color:var(--text)}