:root{
  --ink:#0f1b2d;
  --muted:#5b6778;
  --bg:#f6f9ff;
  --card:#ffffff;
  --line:rgba(15,27,45,0.10);
  --blue:#1f5bd6;
  --blue2:#2d76ff;
  --orange:#f59e0b;
  --shadow:0 20px 60px rgba(15,27,45,0.10);
  --radius:18px;
  --radius2:26px;
  --max:1120px;
  --font: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Helvetica Neue", sans-serif;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--font);
  color:var(--ink);
  background: #ffffff;
}
a{color:inherit;text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:var(--max);margin:0 auto;padding:0 18px}
/* header */
.site-topbar{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,0.86);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--line);
}
.site-topbar .row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 0}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{
  width:28px;height:28px;border-radius:9px;
  background: linear-gradient(135deg,var(--blue),#11c5ff);
  box-shadow: 0 10px 28px rgba(31,91,214,.25);
}
.brand b{font-size:15px;letter-spacing:0.2px}
.nav{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.nav a{font-size:14px;color:rgba(15,27,45,0.85);padding:8px 10px;border-radius:999px}
.nav a.pill{background:rgba(31,91,214,0.08);border:1px solid rgba(31,91,214,0.18)}
.nav a.pill:hover{background:rgba(31,91,214,0.12);text-decoration:none}
/* hero */
.hero{
  background:
    linear-gradient(90deg, rgba(10,18,34,0.82), rgba(10,18,34,0.36)),
    url("/practice-welder.png") center/cover no-repeat;
  color:#fff;
  padding:86px 0 54px;
}
.hero h1{margin:0;font-size:56px;line-height:1.05;letter-spacing:-0.5px;max-width:760px}
.hero .sub{margin-top:10px;font-size:16px;font-weight:600;opacity:.9}
.hero p{margin:18px 0 0;max-width:820px;line-height:1.7;opacity:.92}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 16px;border-radius:12px;
  font-weight:700;font-size:14px;border:1px solid transparent;
  text-decoration:none !important;
}
.btn-orange{background:var(--orange);color:#111827}
.btn-blue{background:var(--blue2);color:#fff}
.btn-ghost{background:rgba(255,255,255,0.10);border-color:rgba(255,255,255,0.22);color:#fff}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.tag{
  padding:7px 10px;border-radius:999px;
  border:1px solid rgba(255,255,255,0.22);
  background:rgba(255,255,255,0.08);
  font-size:12px;font-weight:700;letter-spacing:0.2px;
}
.hero-note{margin-top:12px;font-size:12.5px;opacity:.85}
/* sections */
.section{padding:54px 0}
.section.alt{background:var(--bg);border-top:1px solid rgba(15,27,45,0.06);border-bottom:1px solid rgba(15,27,45,0.06)}
.h2{margin:0 0 12px;font-size:34px;letter-spacing:-0.3px}
.lead{margin:0;color:var(--muted);line-height:1.8;max-width:900px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:980px){.grid3{grid-template-columns:1fr}.hero h1{font-size:40px}}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius2);
  box-shadow: 0 10px 30px rgba(15,27,45,0.06);
}
.pad{padding:18px}
.usp{display:flex;gap:12px;align-items:flex-start}
.usp .ico{
  width:28px;height:28px;border-radius:10px;
  background:rgba(31,91,214,0.12);border:1px solid rgba(31,91,214,0.18);
  display:flex;align-items:center;justify-content:center;
  font-weight:900;color:var(--blue);
}
.usp p{margin:6px 0 0;color:var(--muted);line-height:1.6}
.trust{margin:26px 0 10px;text-align:center;color:rgba(15,27,45,0.65);font-weight:700}
.trust-logos{display:flex;gap:18px;justify-content:center;flex-wrap:wrap;align-items:center}
.trust-logos img{height:46px;opacity:.92;filter:grayscale(1)}
/* module pills */
.feature-row{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:18px}
.feature-row .item{
  display:flex;gap:8px;align-items:center;
  padding:10px 12px;border-radius:999px;
  background:rgba(31,91,214,0.06);border:1px solid rgba(31,91,214,0.16);
  font-weight:800;font-size:13px;
}
.mini{width:22px;height:22px;border-radius:8px;background:rgba(245,158,11,0.15);display:inline-flex;align-items:center;justify-content:center}
/* media grid */
.media-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:22px}
@media(max-width:980px){.media-grid{grid-template-columns:1fr}}
.media-card img{width:100%;height:auto;display:block;border-radius:18px}
.media-card .cap{padding:14px 14px 18px}
.media-card .cap span{display:block;margin-top:6px;color:var(--muted);line-height:1.6}
/* faq */
.faq{max-width:980px;margin-top:14px}
.faq-item{border:1px solid var(--line);background:#fff;border-radius:16px;padding:10px 14px;margin:10px 0}
.faq-item summary{cursor:pointer;font-weight:900}
.faq-item p{margin:10px 0 0;color:var(--muted);line-height:1.7}
/* footer */
.footer{border-top:1px solid var(--line);background:#fff;padding:18px 0}
.footer .row{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:rgba(15,27,45,0.75);font-size:13px}
/* forms */
label{display:block;font-weight:800;font-size:13px;margin:0 0 6px}
input,select,textarea{
  width:100%;padding:12px 12px;border-radius:14px;
  border:1px solid rgba(15,27,45,0.14);
  font-family:var(--font);font-size:14px;
  outline:none;
}
input:focus,select:focus,textarea:focus{border-color:rgba(31,91,214,0.55);box-shadow:0 0 0 4px rgba(31,91,214,0.12)}
.form-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:14px}