/* ---------- Base ---------- */
:root{
  --bg: #ffffff;
  --bg-alt:#f7f8fb;
  --text:#111111;
  --muted:#666a73;
  --accent:#0070f3;
  --card:#ffffff;
  --border:#e6e8ee;
  --shadow: 0 10px 30px rgba(0,0,0,.06);
  --radius: 16px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  line-height:1.6;
  color:var(--text);
  background:var(--bg);
}

.container{width:100%;max-width:1100px;margin:0 auto;padding:0 20px}
.center{text-align:center}

h2{font-size:clamp(1.5rem, 3vw, 2rem); margin-top:0}
h3{font-size:clamp(1.1rem, 2vw, 1.3rem); margin-top:0}
p{margin-top:0}

/* ---------- Accessibility ---------- */
.skip-link{
  position:absolute; left:-9999px; top:auto; width:1px; height:1px; overflow:hidden;
}
.skip-link:focus{
  position:fixed; left:16px; top:16px; width:auto; height:auto; padding:8px 12px;
  background:#000; color:#fff; border-radius:8px; z-index:9999;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(255,255,255,0.8);
  backdrop-filter: blur(6px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex; align-items:center; justify-content:space-between; padding:14px 20px}
.brand{display:flex; flex-direction:column}
.brand-mark{font-weight:700; letter-spacing:1px}
.brand-tag{font-size:.9rem; color:var(--muted)}

.nav{display:flex; gap:14px; align-items:center}
.nav a{color:var(--text); text-decoration:none; font-weight:500; padding:8px 10px; border-radius:10px}
.nav a:hover{background:var(--bg-alt)}

@media (max-width: 640px){
  .header-inner{flex-direction:column; gap:12px; padding:14px 20px}
  .brand{align-items:center; text-align:center}
  .nav{gap:8px; flex-wrap:wrap; justify-content:center}
  .nav a{font-size:.9rem; padding:6px 8px}
}

/* ---------- Buttons ---------- */
.btn-primary{
  display:inline-block; text-decoration:none; font-weight:600; border-radius:12px;
  padding:12px 18px; border:1px solid var(--accent); background:var(--accent); color:#fff;
  box-shadow: var(--shadow);
}
.btn-primary.small{padding:8px 12px; font-size:.95rem}
.btn-primary:hover{filter:brightness(0.95)}

.btn-ghost{
  display:inline-block; text-decoration:none; font-weight:600; border-radius:12px;
  padding:12px 18px; border:1px solid var(--border); background:#fff; color:var(--text);
}
.btn-ghost:hover{border-color:var(--text)}

/* ---------- Hero ---------- */
.hero{position:relative; overflow:hidden}
.hero-inner{padding:72px 20px 64px; text-align:center}
.hero-title{font-size:clamp(2rem, 2vw + 1.5rem, 3rem); line-height:1.1; margin:0 0 35px}
.hero-subtitle{color:var(--muted); margin:0 auto 24px; max-width:52ch}
.hero-actions{display:flex; gap:12px; justify-content:center; flex-wrap:wrap}

@media (max-width: 480px){
  .hero-inner{padding:48px 20px 40px}
  .hero-actions{flex-direction:column; align-items:center}
  .hero-actions a{width:100%; max-width:280px; text-align:center}
}

.hero-gradient{
  position:absolute; inset:auto 0 0 0; height:240px;
  background: radial-gradient(1000px 240px at 50% 0%, rgba(0,112,243,0.10), transparent 60%);
  pointer-events:none;
}

/* ---------- Sections ---------- */
.section{padding:56px 0}
.section-alt{background:var(--bg-alt)}

@media (max-width: 640px){
  .section{padding:40px 0}
}

/* ---------- Grid / Cards ---------- */
.grid-two{display:grid; grid-template-columns: 1.2fr .8fr; gap:24px; align-items:start}
@media (max-width: 820px){
  .grid-two{grid-template-columns: 1fr}
}

.cards{display:grid; grid-template-columns: repeat(4, 1fr); gap:16px; margin-top:12px}
@media (max-width: 980px){ .cards{grid-template-columns: repeat(2, 1fr)} }
@media (max-width: 560px){ .cards{grid-template-columns: 1fr} }

.card{
  background:var(--card); border:1px solid var(--border); border-radius:var(--radius);
  padding:18px; box-shadow:var(--shadow);
}

.bullets{margin:0; padding-left:18px}
.bullets li{margin:8px 0}

/* ---------- Contact ---------- */
.narrow{max-width:780px}
.contact-card{
  display:grid; grid-template-columns: .9fr 1.1fr; gap:18px; align-items:start;
}
@media (max-width: 820px){ .contact-card{grid-template-columns: 1fr} }

.contact-lines{background:var(--card); border:1px solid var(--border); border-radius:var(--radius); padding:18px}
.contact-lines p{margin:8px 0; word-break:break-word}
.contact-lines a{color:var(--text); text-decoration:none}
.contact-lines a:hover{color:var(--accent)}

.contact-form{display:grid; grid-template-columns: 1fr 1fr; gap:12px}
.contact-form label{display:flex; flex-direction:column; gap:6px; font-weight:500}
.contact-form label.full{grid-column:1/-1}
.contact-form input, .contact-form textarea{
  padding:12px 12px; border-radius:12px; border:1px solid var(--border); font:inherit;
  background:#fff;
}
.contact-form input:focus, .contact-form textarea:focus{outline:2px solid rgba(0,112,243,.25); border-color:var(--accent)}

@media (max-width: 560px){
  .contact-form{grid-template-columns: 1fr}
  .contact-form label.full{grid-column:1}
  .contact-lines{font-size:.95rem}
}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--border); background:#fff}
.footer-inner{display:flex; align-items:center; justify-content:space-between; padding:22px 20px}
.to-top{text-decoration:none; border:1px solid var(--border); padding:6px 10px; border-radius:10px; color:var(--text)}
.to-top:hover{border-color:var(--text)}

@media (max-width: 480px){
  .footer-inner{flex-direction:column; gap:12px; text-align:center}
}