/* ============================================================
   BIG3 ENERGY — shared stylesheet  (dark / neon / futuristic)
   No external dependencies. System font stack only.
   ============================================================ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --bg-0:#03050c;
  --bg-1:#060b17;
  --bg-2:#0a1224;
  --panel:rgba(13,21,42,.52);
  --panel-2:rgba(18,29,56,.6);
  --line:rgba(127,167,255,.16);
  --line-strong:rgba(0,229,255,.5);
  --neon:#00e5ff;
  --violet:#a78bfa;
  --violet-deep:#7c3aed;
  --text:#e4edff;
  --muted:#90a4cc;
  --muted-2:#5e73a0;
  --mono:"SF Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --radius:16px;
  --maxw:1180px;
  --nav-h:72px;
  --glow:0 0 22px rgba(0,229,255,.25);
}

html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  background:var(--bg-0);
  color:var(--text);
  line-height:1.65;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
::selection{background:rgba(0,229,255,.32);color:#031018}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px;border-radius:6px}

/* ---------- background layers ---------- */
.grid-mesh{position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    linear-gradient(rgba(0,229,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,229,255,.045) 1px,transparent 1px);
  background-size:54px 54px;
  -webkit-mask-image:radial-gradient(ellipse 100% 80% at 50% -5%,#000 20%,transparent 72%);
  mask-image:radial-gradient(ellipse 100% 80% at 50% -5%,#000 20%,transparent 72%);
}
.aurora{position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(45% 40% at 10% -5%,rgba(124,58,237,.20),transparent 70%),
    radial-gradient(40% 38% at 92% 4%,rgba(0,229,255,.13),transparent 70%),
    radial-gradient(55% 45% at 50% 108%,rgba(0,180,255,.09),transparent 70%);
}
body::after{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:repeating-linear-gradient(0deg,transparent 0 3px,rgba(255,255,255,.012) 3px 4px);
}

/* ---------- typography ---------- */
h1,h2,h3{line-height:1.15;font-weight:800;letter-spacing:-.01em}
.eyebrow{font-family:var(--mono);font-size:.78rem;letter-spacing:.32em;text-transform:uppercase;color:var(--neon)}
.grad-text{background:linear-gradient(92deg,#7ce7ff 0%,#00e5ff 35%,#a78bfa 75%,#c4b5fd 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
.mono{font-family:var(--mono)}
.muted{color:var(--muted)}

/* ---------- layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
section{padding:96px 0;position:relative}
.section-head{max-width:760px;margin-bottom:56px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{font-size:clamp(1.9rem,3.4vw,2.7rem);margin:14px 0 14px}
.section-head p{color:var(--muted);font-size:1.05rem}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:.95rem;
  padding:14px 26px;border-radius:12px;text-decoration:none;letter-spacing:.02em;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
  cursor:pointer;border:1px solid transparent;font-family:var(--sans)}
.btn-primary{background:linear-gradient(92deg,rgba(0,229,255,.16),rgba(124,58,237,.20));
  border-color:var(--line-strong);color:var(--text);box-shadow:var(--glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(0,229,255,.45)}
.btn-ghost{border-color:var(--line);color:var(--text);background:rgba(10,18,36,.5)}
.btn-ghost:hover{border-color:var(--neon);transform:translateY(-2px);box-shadow:var(--glow)}
.btn-sm{padding:10px 18px;font-size:.85rem}

/* ---------- nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;height:var(--nav-h);
  display:flex;align-items:center;
  background:rgba(4,7,15,.62);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(127,167,255,.10);transition:background .3s ease}
.nav.scrolled{background:rgba(4,7,15,.9)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;width:100%}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text)}
.logo-mark{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;flex:0 0 auto;
  background:linear-gradient(135deg,rgba(0,229,255,.25),rgba(124,58,237,.35));
  border:1px solid var(--line-strong);font-family:var(--mono);font-weight:800;color:#dffaff;
  box-shadow:0 0 18px rgba(0,229,255,.22);font-size:.95rem}
.logo-name{font-weight:800;font-size:1.06rem;letter-spacing:.02em;display:block;line-height:1.1}
.logo-name span{color:var(--neon)}
.logo-sub{display:block;font-family:var(--mono);font-size:.58rem;letter-spacing:.30em;color:var(--muted-2);text-transform:uppercase;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:6px;list-style:none}
.nav-links a{padding:10px 16px;text-decoration:none;color:var(--muted);font-size:.92rem;font-weight:600;border-radius:9px;transition:color .2s,background .2s}
.nav-links a:hover{color:var(--text);background:rgba(0,229,255,.07)}
.nav-links a.active{color:var(--neon);background:rgba(0,229,255,.08);box-shadow:inset 0 0 0 1px rgba(0,229,255,.25)}
.nav-cta{margin-left:10px}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:9px;color:var(--text);width:44px;height:40px;font-size:1.15rem;cursor:pointer;line-height:1}

/* ---------- hero ---------- */
.hero{min-height:100svh;display:flex;align-items:center;padding:calc(var(--nav-h) + 40px) 0 90px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:center}
.hero h1{font-size:clamp(2.6rem,5.6vw,4.3rem);margin:20px 0 22px}
.hero .lede{font-size:1.14rem;color:var(--muted);max-width:560px;margin-bottom:34px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-meta{margin-top:40px;display:flex;gap:28px;flex-wrap:wrap}
.hero-meta div{font-family:var(--mono);font-size:.72rem;letter-spacing:.22em;color:var(--muted-2);text-transform:uppercase;display:flex;align-items:center;gap:9px}
.pulse-dot{width:8px;height:8px;border-radius:50%;background:var(--neon);box-shadow:0 0 10px var(--neon);animation:pulse 1.8s infinite;flex:0 0 auto}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

/* terminal card */
.term{border:1px solid var(--line);border-radius:var(--radius);background:rgba(7,12,24,.72);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 24px 70px rgba(0,0,0,.5);overflow:hidden}
.term-bar{display:flex;align-items:center;gap:8px;padding:13px 16px;border-bottom:1px solid var(--line);background:rgba(13,21,42,.5)}
.term-bar i{width:11px;height:11px;border-radius:50%;display:inline-block}
.term-bar i:nth-child(1){background:#ff5f57}
.term-bar i:nth-child(2){background:#febc2e}
.term-bar i:nth-child(3){background:#28c840}
.term-title{margin-left:10px;font-family:var(--mono);font-size:.68rem;color:var(--muted-2);letter-spacing:.14em;text-transform:uppercase}
.term-body{padding:24px 24px 28px;font-family:var(--mono);font-size:.8rem;line-height:2;color:#b9e8ff;overflow-x:auto;white-space:nowrap}
.term-body .c1{color:var(--neon)}
.term-body .c2{color:var(--violet)}
.term-body .c3{color:var(--muted-2)}
.term-body .ok{color:#4ade80}
.term-cursor{display:inline-block;width:8px;height:15px;background:var(--neon);vertical-align:middle;animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}

/* ---------- ticker ---------- */
.ticker{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(7,12,24,.5);overflow:hidden;padding:16px 0}
.ticker-track{display:flex;white-space:nowrap;animation:scroll 38s linear infinite;width:max-content}
.ticker-track span{font-family:var(--mono);font-size:.74rem;letter-spacing:.30em;color:var(--muted);padding:0 26px;text-transform:uppercase}
.ticker-track span::before{content:"◆";color:var(--neon);margin-right:26px;font-size:.6rem;vertical-align:2px}
@keyframes scroll{to{transform:translateX(-50%)}}

/* ---------- cards ---------- */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);padding:30px;position:relative;overflow:hidden;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.card:hover{transform:translateY(-6px);border-color:rgba(0,229,255,.4);box-shadow:0 18px 50px rgba(0,0,0,.45),0 0 30px rgba(0,229,255,.08)}
.card .glyph{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;margin-bottom:20px;
  background:linear-gradient(135deg,rgba(0,229,255,.16),rgba(124,58,237,.22));border:1px solid rgba(0,229,255,.3);
  font-size:1.25rem;color:var(--neon)}
.card h3{font-size:1.18rem;margin-bottom:12px}
.card p{color:var(--muted);font-size:.95rem}
.card ul{list-style:none;margin-top:16px;display:grid;gap:9px}
.card li{font-size:.88rem;color:var(--muted);padding-left:22px;position:relative}
.card li::before{content:"▸";position:absolute;left:0;color:var(--neon);font-size:.8rem;top:1px}
.card-tag{font-family:var(--mono);font-size:.66rem;letter-spacing:.24em;color:var(--muted-2);text-transform:uppercase;display:block;margin-bottom:10px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}

/* ---------- check list ---------- */
.check-list{list-style:none;display:grid;gap:14px;margin-top:28px}
.check-list li{padding-left:34px;position:relative;color:var(--text);font-size:.98rem}
.check-list li::before{content:"✓";position:absolute;left:0;top:1px;width:21px;height:21px;border-radius:7px;display:grid;place-items:center;font-size:.7rem;color:#04121a;
  background:linear-gradient(135deg,var(--neon),var(--violet));font-weight:900;box-shadow:0 0 12px rgba(0,229,255,.4)}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split h2{font-size:clamp(1.8rem,3.2vw,2.5rem);margin:14px 0 14px}

/* ---------- process steps ---------- */
.steps{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.step{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px 16px;position:relative;transition:border-color .25s ease,transform .25s ease}
.step:hover{border-color:rgba(0,229,255,.4);transform:translateY(-4px)}
.step b{font-family:var(--mono);font-size:.7rem;color:var(--neon);letter-spacing:.28em}
.step h4{font-size:.95rem;margin-top:10px}
.step p{font-size:.78rem;color:var(--muted);margin-top:6px}
.step::after{content:"→";position:absolute;right:-13px;top:50%;transform:translateY(-50%);color:var(--muted-2);z-index:2}
.step:last-child::after{display:none}

/* ---------- chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;color:#bfe9ff;background:rgba(0,229,255,.06);border:1px solid rgba(0,229,255,.22);padding:9px 15px;border-radius:999px;transition:border-color .2s,box-shadow .2s}
.chip:hover{border-color:var(--neon);box-shadow:0 0 14px rgba(0,229,255,.2)}

/* ---------- CTA band ---------- */
.cta{max-width:var(--maxw);margin:0 auto;border-radius:22px;padding:64px 48px;text-align:center;position:relative;overflow:hidden;
  background:linear-gradient(135deg,rgba(0,229,255,.10),rgba(124,58,237,.14));
  border:1px solid rgba(0,229,255,.28);box-shadow:0 0 60px rgba(0,229,255,.10)}
.cta h2{font-size:clamp(1.7rem,3vw,2.4rem);margin:12px 0 14px}
.cta p{color:var(--muted);max-width:560px;margin:0 auto 30px}

/* ---------- sub-page hero ---------- */
.page-hero{padding:calc(var(--nav-h) + 90px) 0 70px}
.page-hero h1{font-size:clamp(2.3rem,4.6vw,3.6rem);margin:16px 0 14px}
.page-hero p{color:var(--muted);max-width:660px;font-size:1.06rem}
.breadcrumb{font-family:var(--mono);font-size:.72rem;letter-spacing:.28em;color:var(--muted-2);text-transform:uppercase;display:flex;align-items:center;gap:10px}
.breadcrumb::before{content:"⌂";color:var(--neon);font-size:.85rem}

/* ---------- stack diagram ---------- */
.diagram-shell{border:1px solid var(--line);border-radius:var(--radius);background:rgba(7,12,24,.6);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);padding:28px;overflow-x:auto}
.stack-diagram{width:100%;min-width:620px;height:auto;display:block}

/* ---------- contact ---------- */
.contact-split{align-items:start}
.field{display:grid;gap:8px;margin-bottom:18px}
.field label{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
input,select,textarea{width:100%;background:rgba(7,12,24,.7);border:1px solid var(--line);border-radius:11px;color:var(--text);padding:13px 15px;font-size:.95rem;font-family:var(--sans);transition:border-color .2s ease,box-shadow .2s ease}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--neon);box-shadow:0 0 0 3px rgba(0,229,255,.12)}
textarea{resize:vertical;min-height:140px}
select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--neon) 50%),linear-gradient(135deg,var(--neon) 50%,transparent 50%);background-position:calc(100% - 20px) 50%,calc(100% - 15px) 50%;background-size:5px 5px;background-repeat:no-repeat}
select option{background:#0a1224;color:var(--text)}
.form-note{font-size:.8rem;color:var(--muted-2);margin-top:16px}
.form-ok{display:none;margin-top:20px;padding:16px 18px;border-radius:12px;border:1px solid rgba(74,222,128,.4);background:rgba(74,222,128,.08);color:#bbf7d0;font-size:.9rem;line-height:1.7}
.info-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:8px 26px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.info-card .row{display:flex;gap:18px;padding:19px 0;border-bottom:1px solid rgba(127,167,255,.08)}
.info-card .row:last-child{border-bottom:none}
.info-card .k{font-family:var(--mono);font-size:.64rem;letter-spacing:.22em;color:var(--muted-2);text-transform:uppercase;min-width:74px;padding-top:3px}
.info-card .v{color:var(--text);font-size:.93rem}
.info-card .v a{color:var(--neon);text-decoration:none}
.info-card .v a:hover{text-decoration:underline}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);background:rgba(4,7,15,.7);padding:70px 0 34px;margin-top:40px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px}
.foot-h{font-family:var(--mono);font-size:.68rem;letter-spacing:.30em;color:var(--muted-2);text-transform:uppercase;margin-bottom:18px;font-weight:700}
.foot-links{list-style:none;display:grid;gap:11px}
.foot-links a{color:var(--muted);text-decoration:none;font-size:.9rem;transition:color .2s}
.foot-links a:hover{color:var(--neon)}
.foot-bottom{border-top:1px solid rgba(127,167,255,.08);margin-top:48px;padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--muted-2);font-size:.76rem;font-family:var(--mono);letter-spacing:.08em}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:1000px){
  .steps{grid-template-columns:repeat(3,1fr)}
  .step::after{display:none}
}
@media(max-width:860px){
  .nav-toggle{display:block}
  .nav-links{position:absolute;top:var(--nav-h);left:0;right:0;flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(4,7,15,.97);border-bottom:1px solid var(--line);padding:14px 20px 20px;display:none}
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 14px}
  .nav-cta{margin:8px 0 0}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .split{grid-template-columns:1fr;gap:40px}
  .foot-grid{grid-template-columns:1fr;gap:36px}
  .cta{padding:46px 26px}
}
@media(max-width:640px){
  .steps{grid-template-columns:repeat(2,1fr)}
  section{padding:72px 0}
}