/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root{
  --accent1:#667eea;
  --accent2:#764ba2;
  --bg:#f1f4f9;
  --text:#1e293b;
  --muted:#667085;
  --card:#ffffff;
  --radius:16px;
  --shadow:0 12px 30px rgba(20,20,40,0.12);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  background: linear-gradient(135deg, var(--accent1) 0%, var(--accent2) 100%) fixed;
  color:var(--text);
}
.container{
  max-width:1200px; margin:0 auto; padding:24px 20px 48px;
}

/* Header */
.header{
  background:linear-gradient(180deg, rgba(255,255,255,0.95), rgba(255,255,255,0.88));
  border-radius:20px; padding:18px 20px; box-shadow:var(--shadow); position:sticky; top:12px; z-index:50;
}
.brand{display:flex; align-items:center; gap:12px}
.brand .logo{width:56px; height:56px; border-radius:12px; display:grid; place-items:center; color:white; font-weight:800; letter-spacing:0.5px; background:linear-gradient(135deg,var(--accent1),var(--accent2))}
.brand .title{display:flex; flex-direction:column}
.brand .title h1{margin:0; font-size:20px}
.brand .title span{color:var(--muted); font-size:13px}

/* Nav */
.navbar{margin-top:12px; display:flex; align-items:center; justify-content:space-between; gap:12px}
.menu{display:flex; gap:6px; background:rgba(255,255,255,0.7); padding:6px; border-radius:12px; box-shadow:0 6px 18px rgba(0,0,0,0.06)}
.menu a{padding:10px 14px; border-radius:10px; text-decoration:none; color:var(--text); font-weight:600}
.menu a.active, .menu a:hover{background:linear-gradient(90deg,var(--accent1),var(--accent2)); color:#fff}
.cta{background:linear-gradient(90deg,var(--accent1),var(--accent2)); color:white; border:none; padding:10px 14px; border-radius:12px; font-weight:700; cursor:pointer}

/* Mobile nav */
.hamburger{display:none; width:42px; height:42px; border:none; border-radius:10px; background:rgba(255,255,255,0.9); box-shadow:0 6px 18px rgba(0,0,0,0.08);}
.hamburger span{display:block; height:2px; background:var(--accent2); margin:8px; border-radius:2px}

/* Layout cards */
.card{background:var(--card); border-radius:var(--radius); padding:22px; box-shadow:var(--shadow)}
.hero{
  display:grid; grid-template-columns:1.1fr 0.9fr; gap:18px; align-items:center; margin-top:18px;
  background:linear-gradient(180deg, rgba(255,255,255,0.96), rgba(255,255,255,0.9));
}
.hero h2{margin:0 0 8px 0}
.hero p{color:var(--muted); margin:0 0 12px}
.hero img{width:100%; height:auto; border-radius:16px; box-shadow:0 10px 26px rgba(0,0,0,0.1)}

.grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:14px}
.feature{padding:16px; border:1px solid #eef2f6; border-radius:14px; background:#fff}
.feature h4{margin:0 0 6px}
.feature p{margin:0; color:var(--muted)}

/* Footer */
footer{margin-top:24px; color:#e8ecf7; text-align:center}

/* --- Configurator styles --- */
.cfg .configurator{display:grid; grid-template-columns:1fr 360px; gap:24px}
.cfg .step{background:#fff; border-radius:12px; padding:18px; margin-bottom:14px; border:1px solid #eef2f6; box-shadow:0 10px 22px rgba(10,10,25,0.06)}
.cfg .step h3{display:flex; align-items:center; gap:10px; margin:0 0 12px}
.cfg .step-number{background:linear-gradient(45deg,var(--accent1),var(--accent2)); color:#fff; width:28px; height:28px; border-radius:50%; display:grid; place-items:center; font-weight:800}
.cfg .slider-group{margin:14px 0}
.cfg .slider-group label{display:block; margin-bottom:8px; font-weight:600}
.cfg .slider{width:100%; height:8px; border-radius:4px; background:#e5e7eb; outline:none}
.cfg .slider::-webkit-slider-thumb{appearance:none; width:20px; height:20px; border-radius:50%; background:linear-gradient(45deg,var(--accent1),var(--accent2)); cursor:pointer}
.cfg .value-display{font-weight:800; color:var(--accent1)}
.cfg .option-group{display:grid; grid-template-columns:repeat(auto-fit,minmax(180px,1fr)); gap:10px; margin:12px 0}
.cfg .option{padding:12px; border:1px solid #eef2f6; border-radius:10px; background:#f8fafc; cursor:pointer; text-align:center; transition:.2s}
.cfg .option:hover{border-color:var(--accent1); background:#eef2ff}
.cfg .option.selected{border-color:var(--accent1); background:linear-gradient(45deg,var(--accent1),var(--accent2)); color:#fff}
.cfg .summary{position:sticky; top:24px}
.cfg .summary-item{display:flex; justify-content:space-between; padding:10px 0; border-bottom:1px solid #eef2f6}
.cfg .summary-item:last-child{border-bottom:none}
.cfg .price{font-weight:800; color:#16a34a}
.cfg .btn{width:100%; padding:12px 16px; border:none; border-radius:12px; background:linear-gradient(90deg,var(--accent1),var(--accent2)); color:#fff; font-weight:800; cursor:pointer}
.cfg .equipment-list{background:#f8fafc; border-radius:10px; padding:12px; margin:12px 0}
.cfg .equipment-item{display:flex; justify-content:space-between; margin:6px 0; font-size:14px}
.cfg .total-price-note{font-size:12px; color:var(--muted)}

/* Sections basic */
.section{margin-top:18px}

/* Responsive */
@media (max-width: 1024px){
  .hero{grid-template-columns:1fr}
  .cfg .configurator{grid-template-columns:1fr}
}
@media (max-width: 860px){
  .menu{display:none}
  .hamburger{display:block}
}
@media (max-width: 600px){
  .container{padding:16px 12px 28px}
  .card{padding:16px}
  .hero{padding:16px}
  .brand .title h1{font-size:18px}
}
/* Mobile menu drawer */
.mobile-drawer{
  position:fixed; inset:0 0 0 auto; width:min(80%, 340px); transform:translateX(100%);
  background:#fff; box-shadow:-12px 0 30px rgba(0,0,0,0.25); transition:transform .25s ease; z-index:1000; padding:20px;
}
.mobile-drawer.open{transform:translateX(0%)}
.mobile-drawer a{display:block; padding:12px 10px; border-radius:10px; color:var(--text); text-decoration:none; font-weight:600}
.mobile-drawer a:hover{background:#eef2ff; color:#111}
.mobile-overlay{position:fixed; inset:0; background:rgba(0,0,0,0.4); opacity:0; pointer-events:none; transition:.2s; z-index:999}
.mobile-overlay.show{opacity:1; pointer-events:auto}