/* =========================================================
   Bluefin LLC — Design System
   Dark ocean look · navy #13324B · teal #1F7A8C
   Single shared stylesheet for all pages.
   ========================================================= */

:root{
  /* Brand */
  --navy-900:#0a1622;   /* page background, deepest */
  --navy-850:#0c1a29;
  --navy-800:#0f2033;   /* panels */
  --navy-700:#13324b;   /* brand navy */
  --navy-600:#1b4568;
  --teal:#1f7a8c;       /* brand teal */
  --teal-bright:#3bb6c9;/* links / hover */
  --teal-glow:#57d0e0;

  /* Text */
  --ink:#eaf1f7;        /* primary text */
  --ink-soft:#b8c8d8;   /* secondary text */
  --ink-mut:#7f95a8;    /* muted / captions */

  /* Lines & fills */
  --line:rgba(120,160,190,.16);
  --line-strong:rgba(120,175,200,.28);
  --panel:rgba(19,50,75,.35);
  --panel-2:rgba(15,32,51,.55);

  --radius:16px;
  --radius-sm:11px;
  --maxw:1140px;
  --shadow:0 18px 50px -20px rgba(0,0,0,.65);

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  color:var(--ink);
  background-color:var(--navy-900);
  background-image:
    radial-gradient(1100px 620px at 78% -2%, rgba(31,122,140,.20), transparent 60%),
    radial-gradient(900px 560px at 5% 4%, rgba(27,69,104,.28), transparent 62%),
    linear-gradient(180deg, var(--navy-900) 0%, #08111c 100%);
  background-repeat:no-repeat;
  background-size:100% 100%;
  line-height:1.62;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
a{color:var(--teal-bright);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--teal-glow)}
img{max-width:100%}
h1,h2,h3{line-height:1.15;font-weight:700;letter-spacing:-.02em;margin:0 0 .5em}
h1{font-size:clamp(2.1rem,5vw,3.5rem)}
h2{font-size:clamp(1.5rem,3vw,2.15rem)}
h3{font-size:1.16rem;letter-spacing:-.01em}
p{margin:0 0 1.05em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(20px,5vw,44px)}
.eyebrow{
  text-transform:uppercase;letter-spacing:.22em;font-size:.74rem;font-weight:700;
  color:var(--teal-glow);margin:0 0 .9rem
}
.lead{font-size:clamp(1.05rem,1.6vw,1.28rem);color:var(--ink-soft);max-width:64ch}
.muted{color:var(--ink-mut)}
.center{text-align:center}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(12px);
  background:rgba(8,17,28,.72);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:.02em;
  font-size:1.15rem;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand .mark{width:30px;height:30px;flex:0 0 auto}
.brand .llc{color:var(--ink-mut);font-weight:600;font-size:.72rem;letter-spacing:.18em;
  align-self:center;margin-left:2px}
.nav-links{display:flex;gap:6px;align-items:center;list-style:none;margin:0;padding:0}
.nav-links a{
  color:var(--ink-soft);font-weight:600;font-size:.95rem;
  padding:9px 14px;border-radius:9px;
}
.nav-links a:hover{color:var(--ink);background:rgba(120,175,200,.09)}
.nav-links a.active{color:var(--teal-glow)}
.nav-cta{
  background:linear-gradient(180deg,var(--teal),#166573);
  color:#eafcff !important;border:1px solid rgba(87,208,224,.35);
  box-shadow:0 6px 18px -8px rgba(31,122,140,.8);
}
.nav-cta:hover{filter:brightness(1.1);background:linear-gradient(180deg,var(--teal),#166573)}
.nav-toggle{display:none;background:none;border:0;color:var(--ink);cursor:pointer;padding:8px}
.nav-toggle svg{width:26px;height:26px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-weight:700;font-size:1rem;line-height:1;
  padding:15px 26px;border-radius:12px;cursor:pointer;
  border:1px solid transparent;transition:all .18s ease;
}
.btn-primary{
  background:linear-gradient(180deg,var(--teal),#155d6a);
  color:#eafcff;border-color:rgba(87,208,224,.4);
  box-shadow:0 12px 30px -12px rgba(31,122,140,.9);
}
.btn-primary:hover{filter:brightness(1.1);transform:translateY(-1px);color:#eafcff}
.btn-ghost{
  background:rgba(120,175,200,.06);color:var(--ink);
  border-color:var(--line-strong);
}
.btn-ghost:hover{background:rgba(120,175,200,.12);color:var(--ink);transform:translateY(-1px)}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- Section rhythm ---------- */
section{padding:clamp(56px,8vw,104px) 0}
.section-tight{padding:clamp(40px,6vw,72px) 0}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- Hero ---------- */
.hero{padding-top:clamp(60px,9vw,120px);padding-bottom:clamp(52px,8vw,96px);position:relative}
.hero h1{max-width:16ch}
.hero .lead{margin-top:.3rem;margin-bottom:2rem}
.hero-accent{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--ink-soft);font-weight:600;font-size:.92rem;margin-bottom:1.4rem;
  padding:7px 15px 7px 12px;border:1px solid var(--line-strong);border-radius:999px;
  background:var(--panel-2);
}
.hero-accent .dot{width:8px;height:8px;border-radius:50%;background:var(--teal-glow);
  box-shadow:0 0 12px var(--teal-glow)}

/* ---------- Cards / grids ---------- */
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 28px;box-shadow:var(--shadow);
  transition:border-color .2s ease, transform .2s ease;
}
.card:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.card .icon{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;margin-bottom:18px;
  background:rgba(31,122,140,.16);border:1px solid rgba(87,208,224,.28);color:var(--teal-glow);
}
.card .icon svg{width:24px;height:24px}
.card h3{margin-bottom:.4em}
.card p{color:var(--ink-soft);margin-bottom:0;font-size:.98rem}

/* Service phase blocks */
.svc-block{
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);border-radius:var(--radius);
  padding:clamp(26px,3vw,40px);box-shadow:var(--shadow);
}
.svc-block + .svc-block{margin-top:22px}
.svc-block .block-head{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin-bottom:.4em}
.svc-block h2{margin:0}
.svc-block > p{color:var(--ink-soft);max-width:70ch}
.phase-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;margin-top:26px}
.phase h3{color:var(--teal-glow);font-size:.82rem;text-transform:uppercase;letter-spacing:.14em;
  margin-bottom:.7em;padding-bottom:.5em;border-bottom:1px solid var(--line)}

/* Feature list with ticks */
.ticks{list-style:none;margin:1.1em 0 0;padding:0}
.ticks li{position:relative;padding:7px 0 7px 30px;color:var(--ink-soft);
  border-bottom:1px solid rgba(120,160,190,.08);font-size:.98rem}
.ticks li:last-child{border-bottom:0}
.ticks li::before{
  content:"";position:absolute;left:0;top:13px;width:15px;height:15px;
  background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2357d0e0' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><path d='M20 6 9 17l-5-5'/></svg>") no-repeat center/contain;
}

/* Chips (systems covered) */
.chips{display:flex;flex-wrap:wrap;gap:11px;margin-top:1.2em}
.chip{
  padding:9px 16px;border-radius:999px;font-size:.92rem;font-weight:600;color:var(--ink-soft);
  background:rgba(120,175,200,.06);border:1px solid var(--line-strong);
}

/* Credentials strip */
.creds{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.cred{
  display:inline-flex;align-items:center;gap:9px;
  padding:11px 18px;border-radius:12px;font-weight:600;font-size:.92rem;color:var(--ink-soft);
  background:var(--panel-2);border:1px solid var(--line);
}
.cred b{color:var(--ink);font-weight:700}
.cred .dot{width:7px;height:7px;border-radius:50%;background:var(--teal);flex:0 0 auto}

/* Stat / highlight row */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;text-align:center}
.stat .num{font-size:clamp(2rem,4vw,2.8rem);font-weight:800;color:var(--ink);letter-spacing:-.03em;
  background:linear-gradient(180deg,#eaf1f7,#8fd3df);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent}
.stat .label{color:var(--ink-mut);font-size:.95rem;font-weight:600}

/* Panel band (CTA) */
.band{
  background:
    radial-gradient(600px 300px at 80% 0%,rgba(31,122,140,.28),transparent 60%),
    linear-gradient(180deg,var(--navy-700),var(--navy-800));
  border:1px solid var(--line-strong);border-radius:22px;
  padding:clamp(36px,5vw,64px);text-align:center;box-shadow:var(--shadow);
}
.band h2{max-width:20ch;margin-inline:auto}
.band p{color:var(--ink-soft);max-width:56ch;margin-inline:auto}

/* Prose / About */
.prose{max-width:70ch}
.prose p{color:var(--ink-soft)}
.prose h2{margin-top:1.6em;color:var(--ink)}
.prose strong{color:var(--ink)}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:start}
.contact-card{
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);border-radius:var(--radius);padding:clamp(26px,3vw,38px);
  box-shadow:var(--shadow);
}
.contact-item{display:flex;gap:16px;align-items:flex-start;padding:16px 0;border-bottom:1px solid var(--line)}
.contact-item:last-child{border-bottom:0}
.contact-item .ic{
  width:42px;height:42px;flex:0 0 auto;border-radius:11px;display:grid;place-items:center;
  background:rgba(31,122,140,.16);border:1px solid rgba(87,208,224,.28);color:var(--teal-glow);
}
.contact-item .ic svg{width:21px;height:21px}
.contact-item .k{font-size:.78rem;text-transform:uppercase;letter-spacing:.14em;color:var(--ink-mut);
  font-weight:700;margin-bottom:2px}
.contact-item .v{font-size:1.08rem;font-weight:600;color:var(--ink);word-break:break-word}
.contact-item .v a{color:var(--teal-glow)}

/* Form */
.field{margin-bottom:18px}
.field label{display:block;font-size:.85rem;font-weight:700;color:var(--ink-soft);margin-bottom:7px;
  letter-spacing:.02em}
.field input,.field textarea{
  width:100%;font:inherit;font-size:1rem;color:var(--ink);
  background:rgba(8,17,28,.6);border:1px solid var(--line-strong);border-radius:11px;
  padding:13px 15px;transition:border-color .18s ease, box-shadow .18s ease;
}
.field input:focus,.field textarea:focus{
  outline:0;border-color:var(--teal-bright);box-shadow:0 0 0 3px rgba(59,182,201,.16)
}
.field textarea{min-height:130px;resize:vertical}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);background:rgba(6,13,22,.6);margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;padding:56px 0 28px}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{color:var(--ink-mut);font-size:.95rem;max-width:38ch}
.footer-col h4{font-size:.78rem;text-transform:uppercase;letter-spacing:.16em;color:var(--ink-mut);
  margin:0 0 14px;font-weight:700}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--ink-soft);font-weight:500}
.footer-col a:hover{color:var(--teal-glow)}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0;display:flex;justify-content:space-between;
  flex-wrap:wrap;gap:10px;color:var(--ink-mut);font-size:.85rem}

/* ---------- Responsive ---------- */
@media (max-width:860px){
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .phase-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr;gap:26px}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:40px 0 20px}
  .nav-links{
    position:fixed;inset:70px 0 auto 0;flex-direction:column;gap:0;
    background:rgba(8,17,28,.98);border-bottom:1px solid var(--line);
    padding:10px 20px 22px;transform:translateY(-140%);transition:transform .28s ease;
    box-shadow:var(--shadow);
  }
  .nav-links.open{transform:translateY(0)}
  .nav-links a{width:100%;padding:14px 6px;border-radius:0;border-bottom:1px solid var(--line)}
  .nav-links li:last-child a{border-bottom:0}
  .nav-cta{margin-top:12px;justify-content:center}
  .nav-toggle{display:block}
}