/* Solvagon — monochrome palette & type taken from the live solvagon.com
   (black / white / greys #969696; Playfair Display headings, Source Sans Pro body, Montserrat UI) */
:root{
  --ink:#111111; --ink-2:#1b1b1b; --muted:#6b6b6b; --grey:#969696; --line:#e2e2e2;
  --paper:#ffffff; --paper-2:#f6f6f4; --accent:#111111;
  --radius:14px; --max:1120px;
  --serif:'Playfair Display',Georgia,serif;
  --sans:'Source Sans Pro','Source Sans 3',Arial,sans-serif;
  --ui:'Montserrat',Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);font-size:18px;line-height:1.6;color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
.container{max-width:var(--max);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:16px;background:#fff;padding:8px 12px;z-index:100}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--ui);font-weight:700;letter-spacing:.18em;text-transform:uppercase;font-size:15px}
.brand-mark{width:30px;height:30px}
.nav-links{display:flex;gap:28px;align-items:center;list-style:none;margin:0;padding:0}
.nav-links a{font-family:var(--ui);font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;text-decoration:none;color:var(--muted);transition:color .2s}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--ink)}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 10px;font:600 13px var(--ui);cursor:pointer}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--ui);font-size:13px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;text-decoration:none;padding:15px 26px;border-radius:999px;border:1.5px solid var(--ink);transition:all .2s}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:#fff;color:var(--ink)}
.btn-ghost{background:transparent;color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-light{background:#fff;color:var(--ink);border-color:#fff}
.btn-light:hover{background:transparent;color:#fff}
.nav-links .btn{color:#fff;padding:10px 18px}
.nav-links .btn:hover{color:var(--ink)}

/* Hero */
.hero{position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:120px 0 110px}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(900px 420px at 85% -10%,rgba(255,255,255,.12),transparent 60%),
  radial-gradient(700px 380px at -10% 110%,rgba(150,150,150,.18),transparent 60%)}
.hero::after{content:"";position:absolute;right:-120px;top:50%;width:520px;height:520px;transform:translateY(-50%);
  background:url("/assets/polygon.svg") center/contain no-repeat;opacity:.18}
.hero .container{position:relative;z-index:1}
.eyebrow{font-family:var(--ui);font-size:12px;font-weight:600;letter-spacing:.24em;text-transform:uppercase;color:var(--grey);margin:0 0 18px}
.hero h1{font-family:var(--serif);font-weight:600;font-size:clamp(40px,6vw,72px);line-height:1.08;margin:0 0 22px;max-width:14ch}
.hero p.lead{font-size:clamp(18px,2vw,21px);color:#cfcfcf;max-width:58ch;margin:0 0 36px}
.hero .actions{display:flex;flex-wrap:wrap;gap:14px}
.hero .btn-ghost{color:#fff;border-color:rgba(255,255,255,.5)}
.hero .btn-ghost:hover{background:#fff;color:var(--ink)}

/* Sections */
section{padding:96px 0}
.section-alt{background:var(--paper-2)}
.section-head{max-width:680px;margin:0 0 52px}
.section-head h2{font-family:var(--serif);font-weight:600;font-size:clamp(30px,4vw,44px);line-height:1.15;margin:0 0 14px}
.section-head p{color:var(--muted);margin:0}
.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.card p a{color:var(--ink);text-underline-offset:2px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-3px);box-shadow:0 18px 40px -24px rgba(0,0,0,.35)}
.card h3{font-family:var(--ui);font-size:17px;font-weight:700;margin:18px 0 10px;letter-spacing:.01em}
.card p{color:var(--muted);margin:0;font-size:16.5px}
.tags{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:14px 0 0;padding:0}
.tags li{font-family:var(--ui);font-size:11.5px;font-weight:600;letter-spacing:.02em;line-height:1;padding:6px 10px;border:1px solid var(--line);border-radius:999px;background:var(--paper-2);color:var(--ink)}
.icon{width:46px;height:46px;border-radius:12px;background:var(--ink);color:#fff;display:grid;place-items:center}
.icon svg{width:22px;height:22px}

/* Steps */
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{border-top:2px solid var(--ink);padding-top:22px}
.step::before{counter-increment:step;content:"0" counter(step);font-family:var(--ui);font-weight:700;font-size:13px;letter-spacing:.14em;color:var(--grey)}
.step h3{font-family:var(--ui);font-size:17px;margin:10px 0 8px}
.step p{color:var(--muted);margin:0;font-size:16px}

/* Contact */
.contact{background:var(--ink);color:#fff}
.contact .section-head p{color:#bdbdbd}
.contact-wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.contact-card{border:1px solid rgba(255,255,255,.16);border-radius:var(--radius);padding:32px;background:rgba(255,255,255,.03)}
.contact-card .label{font-family:var(--ui);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--grey);margin:0 0 8px}
.contact-email{font-family:var(--serif);font-size:clamp(24px,3vw,32px);color:#fff;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.35);word-break:break-all}
.contact-email:hover{border-color:#fff}
.contact-card p{color:#bdbdbd}
.contact-email-line{margin:0 0 28px}
.contact-form{display:grid;gap:16px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field label{font-family:var(--ui);font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:#d6d6d6}
.field .optional{text-transform:none;letter-spacing:0;font-weight:500;color:var(--grey)}
.field input,.field select,.field textarea{width:100%;font:16px/1.4 var(--sans);color:#fff;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.2);border-radius:10px;padding:12px 14px;transition:border-color .2s,background .2s}
.field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23bdbdbd' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;background-size:16px;padding-right:38px}
.field select option{color:#111;background:#fff}
.field textarea{resize:vertical;min-height:120px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:#fff;background:rgba(255,255,255,.1)}
.field [aria-invalid="true"]{border-color:#ff8a80}
.field-error{margin:0;min-height:0;font-size:14px;color:#ff8a80}
.field-error:empty{display:none}
.contact-form .btn{justify-self:start;cursor:pointer}
.form-note{margin:0;font-size:15px;color:#d6d6d6}
.form-note:empty{display:none}
.form-note a{color:#fff}

/* CTA band */
.cta-band{padding:80px 0}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:32px;border:1px solid var(--line);border-radius:22px;padding:48px}
.cta-inner h2{font-family:var(--serif);font-size:clamp(26px,3vw,36px);margin:0 0 8px;font-weight:600}
.cta-inner p{margin:0;color:var(--muted)}

/* Footer */
.site-footer{background:#0b0b0b;color:#a9a9a9;padding:64px 0 32px;font-size:15.5px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:48px}
.site-footer .brand{color:#fff;margin-bottom:14px}
.site-footer h4{font-family:var(--ui);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:#fff;margin:0 0 16px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin:0 0 10px}
.site-footer a{text-decoration:none;color:#a9a9a9}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid #222;padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:14px}

/* Responsive */
@media (max-width:960px){
  .grid-3,.steps{grid-template-columns:1fr 1fr}
  .contact-wrap{grid-template-columns:1fr;gap:40px}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:960px) and (min-width:721px){
  .services-grid>.card:last-child:nth-child(odd){grid-column:1/-1}
}
@media (max-width:720px){
  body{font-size:17px}
  section{padding:72px 0}
  .hero{padding:88px 0 80px}
  .grid-3,.steps,.footer-grid{grid-template-columns:1fr}
  .nav-toggle{display:block}
  .nav-links{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;align-items:flex-start;padding:20px 24px;border-bottom:1px solid var(--line);gap:18px}
  .nav-links.open{display:flex}
  .cta-inner{padding:32px}
}