:root{
    --bg: #EEF0F3;
    --surface: #FFFFFF;
    --line: #D8DCE1;
    --ink: #14181F;
    --ink-soft: #4A525C;
    --copper: #B5652D;
    --copper-dark: #8F4E22;
    --teal: #1F6F6B;
    --teal-soft: #E6F0EF;
    --mono: 'IBM Plex Mono', monospace;
    --display: 'Space Grotesk', sans-serif;
    --body: 'Inter', sans-serif;
  }
  *{box-sizing:border-box; margin:0; padding:0;}
  body{
    background:var(--bg);
    color:var(--ink);
    font-family:var(--body);
    -webkit-font-smoothing:antialiased;
    line-height:1.5;
  }
  a{color:inherit; text-decoration:none;}
  .wrap{max-width:1180px; margin:0 auto; padding:0 32px;}

  /* focus visibility */
  a:focus-visible, button:focus-visible{outline:2px solid var(--copper); outline-offset:3px;}

  @media (prefers-reduced-motion: reduce){
    *{animation:none !important; transition:none !important;}
  }

  /* NAV */
  header{
    position:sticky; top:0; z-index:50;
    background:rgba(238,240,243,0.88);
    backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
  }
  nav{display:flex; align-items:center; justify-content:space-between; padding:18px 32px;}
  .logo{font-family:var(--display); font-weight:700; font-size:1.15rem; letter-spacing:-0.01em; display:flex; align-items:center; gap:8px;}
  .logo .dot{width:8px; height:8px; background:var(--copper); border-radius:1px; display:inline-block;}
  .nav-links{display:flex; gap:36px; font-size:0.92rem; font-weight:500; color:var(--ink-soft);}
  .nav-links a:hover{color:var(--ink);}
  .nav-cta{background:var(--ink); color:var(--bg); padding:10px 18px; border-radius:2px; font-size:0.88rem; font-weight:600;}
  .nav-cta:hover{background:var(--copper-dark);}
  @media (max-width:800px){ .nav-links{display:none;} }

  /* HERO */
  .hero{padding:110px 32px 80px;}
  .hero-grid{max-width:1180px; margin:0 auto; display:grid; grid-template-columns:1.05fr 0.95fr; gap:56px; align-items:center;}
  @media (max-width:900px){ .hero-grid{grid-template-columns:1fr;} }
  .eyebrow{
    font-family:var(--mono); font-size:0.78rem; color:var(--copper-dark);
    letter-spacing:0.06em; text-transform:uppercase; display:flex; align-items:center; gap:10px; margin-bottom:20px;
  }
  .eyebrow::before{content:''; width:22px; height:1px; background:var(--copper-dark);}
  h1{
    font-family:var(--display); font-weight:700; font-size:clamp(2.1rem, 4vw, 3.4rem);
    line-height:1.05; letter-spacing:-0.02em; margin-bottom:22px;
  }
  h1 em{font-style:normal; color:var(--copper);}
  .hero p.lede{font-size:1.08rem; color:var(--ink-soft); max-width:46ch; margin-bottom:32px;}
  .hero-actions{display:flex; gap:14px; flex-wrap:wrap;}
  .btn-primary{
    background:var(--ink); color:var(--bg); padding:14px 26px; border-radius:2px;
    font-weight:600; font-size:0.95rem; display:inline-block; border:1px solid var(--ink);
  }
  .btn-primary:hover{background:var(--copper-dark); border-color:var(--copper-dark);}
  .btn-ghost{
    padding:14px 26px; border-radius:2px; font-weight:600; font-size:0.95rem;
    border:1px solid var(--ink); color:var(--ink);
  }
  .btn-ghost:hover{background:var(--surface);}

  /* schematic illustration */
  .schematic{width:100%; height:auto;}
  .trace{stroke:var(--copper); stroke-width:1.4; fill:none;}
  .trace-teal{stroke:var(--teal); stroke-width:1.4; fill:none;}
  .node{fill:var(--surface); stroke:var(--ink); stroke-width:1.2;}
  .node-dot{fill:var(--copper);}
  .label-mono{font-family:var(--mono); font-size:10px; fill:var(--ink-soft);}

  /* TRUST BAR */
  .trust{border-top:1px solid var(--line); border-bottom:1px solid var(--line); background:var(--surface);}
  .trust-grid{
    max-width:1180px; margin:0 auto; padding:26px 32px;
    display:grid; grid-template-columns:repeat(4,1fr); gap:24px;
  }
  @media (max-width:800px){ .trust-grid{grid-template-columns:repeat(2,1fr);} }
  .trust-item{display:flex; flex-direction:column; gap:4px;}
  .trust-item .num{font-family:var(--mono); font-size:0.78rem; color:var(--copper-dark);}
  .trust-item .t{font-weight:600; font-size:0.95rem;}

  /* SECTION HEADERS */
  section{padding:120px 0;}
  .sec-head{max-width:640px; margin-bottom:64px;}
  .sec-eyebrow{font-family:var(--mono); font-size:0.76rem; color:var(--teal); text-transform:uppercase; letter-spacing:0.06em; margin-bottom:10px;}
  h2{font-family:var(--display); font-weight:700; font-size:clamp(1.6rem,3vw,2.3rem); letter-spacing:-0.01em;}
  .sec-head p{color:var(--ink-soft); margin-top:14px; font-size:1.02rem;}

  /* PROCESS STEPS */
  .steps{display:grid; grid-template-columns:repeat(3,1fr); gap:0; position:relative; margin-bottom:24px;}
  @media (max-width:800px){ .steps{grid-template-columns:1fr; gap:28px;} }
  .step{padding:0 32px 8px 0; border-right:1px solid var(--line); position:relative;}
  .step:last-child{border-right:none;}
  @media (max-width:800px){ .step{border-right:none; border-left:2px solid var(--line); padding:0 0 0 24px;} }
  .step-num{font-family:var(--mono); font-size:0.85rem; color:var(--copper); margin-bottom:14px; display:block;}
  .step h3{font-family:var(--display); font-weight:600; font-size:1.15rem; margin-bottom:10px;}
  .step p{color:var(--ink-soft); font-size:0.94rem;}

  /* DEVICE CARDS */
  .devices{display:grid; grid-template-columns:1fr 1fr; gap:28px; margin-top:72px;}
  @media (max-width:800px){ .devices{grid-template-columns:1fr;} }
  .device-card{
    background:var(--surface); border:1px solid var(--line); border-radius:3px; padding:40px;
    display:flex; flex-direction:column; gap:18px;
  }
  .device-card h4{font-family:var(--display); font-size:1.3rem; font-weight:600;}
  .tag-row{display:flex; flex-wrap:wrap; gap:8px;}
  .tag{
    font-family:var(--mono); font-size:0.74rem; color:var(--ink-soft);
    border:1px solid var(--line); padding:5px 10px; border-radius:2px;
  }
  .device-card .cta{margin-top:auto; font-weight:600; font-size:0.9rem; color:var(--copper-dark); display:flex; align-items:center; gap:6px;}
  .device-card .cta::after{content:'→';}

  /* PARTS SECTION (teal band) */
  .parts{background:var(--teal); color:#fff;}
  .parts .sec-eyebrow{color:#BFE3E0;}
  .parts .sec-head p{color:#D8ECEB;}
  .parts h2{color:#fff;}
  .parts-note{
    display:inline-flex; align-items:center; gap:8px; background:rgba(255,255,255,0.1);
    border:1px solid rgba(255,255,255,0.25); padding:8px 14px; border-radius:2px;
    font-family:var(--mono); font-size:0.78rem; margin-top:18px;
  }
  .parts-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:24px; margin-top:64px;}
  @media (max-width:900px){ .parts-grid{grid-template-columns:repeat(2,1fr);} }
  .part-card{
    background:rgba(255,255,255,0.06); border:1px solid rgba(255,255,255,0.18);
    border-radius:3px; padding:28px 24px; display:flex; flex-direction:column; gap:14px;
  }
  .part-sku{font-family:var(--mono); font-size:0.72rem; color:#BFE3E0;}
  .part-card h5{font-family:var(--display); font-weight:600; font-size:1.05rem;}
  .part-price{font-family:var(--mono); font-size:0.95rem; margin-top:auto; padding-top:10px; border-top:1px solid rgba(255,255,255,0.15);}
  .part-price .from{font-size:0.7rem; color:#BFE3E0; display:block;}

  /* WHY US */
  .why-grid{display:grid; grid-template-columns:1fr 1fr; gap:80px; align-items:start;}
  @media (max-width:900px){ .why-grid{grid-template-columns:1fr;} }
  .why-list{display:flex; flex-direction:column; gap:36px;}
  .why-item{display:flex; gap:18px;}
  .why-item .mark{font-family:var(--mono); font-size:0.85rem; color:var(--copper); flex-shrink:0; padding-top:2px;}
  .why-item h4{font-family:var(--display); font-weight:600; font-size:1.05rem; margin-bottom:6px;}
  .why-item p{color:var(--ink-soft); font-size:0.92rem;}

  /* CONTACT / FOOTER */
  footer{background:var(--ink); color:var(--bg); margin-top:72px; padding:64px 0 28px;}
  .footer-grid{display:grid; grid-template-columns:1.2fr 1fr 1fr; gap:48px;}
  @media (max-width:800px){ .footer-grid{grid-template-columns:1fr; gap:32px;} }
  .footer-logo{font-family:var(--display); font-weight:700; font-size:1.2rem; margin-bottom:14px;}
  footer p{color:#9AA2AC; font-size:0.92rem; max-width:38ch;}
  .footer-col h6{font-family:var(--mono); font-size:0.74rem; text-transform:uppercase; letter-spacing:0.06em; color:#9AA2AC; margin-bottom:14px;}
  .footer-col a, .footer-col div{display:block; font-size:0.92rem; margin-bottom:10px; color:#DADFE5;}
  .footer-col a:hover{color:var(--copper);}
  .footer-bottom{
    margin-top:56px; padding-top:24px; border-top:1px solid rgba(255,255,255,0.12);
    display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;
    font-family:var(--mono); font-size:0.74rem; color:#7A828C;
  }

/* ---------- Adăugări pentru shop / cart / checkout / admin ---------- */
.breadcrumb{font-family:var(--mono); font-size:0.8rem; color:var(--ink-soft); margin-bottom:24px;}
.breadcrumb a:hover{color:var(--copper);}

.filters{display:flex; gap:10px; flex-wrap:wrap; margin-bottom:40px;}
.filter-chip{
  font-family:var(--mono); font-size:0.8rem; padding:8px 16px; border-radius:2px;
  border:1px solid var(--line); color:var(--ink-soft); background:var(--surface);
}
.filter-chip.active{background:var(--ink); color:var(--bg); border-color:var(--ink);}

.shop-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:20px;}
@media (max-width:900px){ .shop-grid{grid-template-columns:repeat(2,1fr);} }
@media (max-width:520px){ .shop-grid{grid-template-columns:1fr;} }
.shop-card{
  background:var(--surface); border:1px solid var(--line); border-radius:3px;
  padding:22px; display:flex; flex-direction:column; gap:10px;
}
.shop-card img{width:100%; height:150px; object-fit:cover; border-radius:2px; background:var(--bg); border:1px solid var(--line);}
.shop-card .name{font-family:var(--display); font-weight:600; font-size:1.02rem;}
.shop-card .stock{font-family:var(--mono); font-size:0.72rem; color:var(--teal);}
.shop-card .stock.out{color:#B23A2E;}
.shop-card form{margin-top:auto; display:flex; gap:8px; align-items:center;}
.shop-card input[type=number]{
  width:56px; padding:8px; border:1px solid var(--line); border-radius:2px; font-family:var(--mono);
}
.btn-small{
  background:var(--ink); color:var(--bg); border:none; padding:9px 14px; border-radius:2px;
  font-weight:600; font-size:0.82rem; cursor:pointer;
}
.btn-small:hover{background:var(--copper-dark);}
.btn-small:disabled{background:var(--line); color:var(--ink-soft); cursor:not-allowed;}

.product-detail{display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:start;}
@media (max-width:800px){ .product-detail{grid-template-columns:1fr;} }
.product-detail img{width:100%; border-radius:3px; border:1px solid var(--line); background:var(--surface);}
.product-detail .sku{font-family:var(--mono); font-size:0.78rem; color:var(--copper-dark); margin-bottom:10px;}
.product-detail h1{font-size:clamp(1.6rem,3vw,2.2rem);}
.product-detail .price{font-family:var(--mono); font-size:1.4rem; margin:18px 0;}
.product-detail .desc{color:var(--ink-soft); margin-bottom:24px;}

table.simple{width:100%; border-collapse:collapse; margin-bottom:24px;}
table.simple th, table.simple td{padding:14px 10px; border-bottom:1px solid var(--line); text-align:left; font-size:0.92rem;}
table.simple th{font-family:var(--mono); font-size:0.72rem; text-transform:uppercase; color:var(--ink-soft); letter-spacing:0.05em;}
table.simple .qty-input{width:56px; padding:6px; border:1px solid var(--line); border-radius:2px; font-family:var(--mono);}
.cart-total-row td{font-weight:700; font-size:1.05rem; border-top:2px solid var(--ink); border-bottom:none;}

.form-field{margin-bottom:18px;}
.form-field label{display:block; font-family:var(--mono); font-size:0.78rem; color:var(--ink-soft); margin-bottom:6px;}
.form-field input, .form-field textarea, .form-field select{
  width:100%; padding:12px; border:1px solid var(--line); border-radius:2px; font-family:var(--body); font-size:0.95rem;
  background:var(--surface); color:var(--ink);
}
.form-field textarea{resize:vertical; min-height:90px;}

.alert{padding:14px 18px; border-radius:2px; font-size:0.9rem; margin-bottom:24px;}
.alert-error{background:#FBEAE8; border:1px solid #E4A69E; color:#8B2E22;}
.alert-success{background:var(--teal-soft); border:1px solid var(--teal); color:var(--teal);}

/* Admin */
.admin-shell{display:grid; grid-template-columns:220px 1fr; min-height:100vh;}
@media (max-width:800px){ .admin-shell{grid-template-columns:1fr;} }
.admin-side{background:var(--ink); color:var(--bg); padding:28px 20px;}
.admin-side .logo{color:var(--bg); margin-bottom:32px;}
.admin-side a{display:block; padding:10px 0; color:#C7CDD5; font-size:0.92rem;}
.admin-side a:hover, .admin-side a.active{color:#fff; font-weight:600;}
.admin-main{padding:40px 40px;}
.admin-topbar{display:flex; justify-content:space-between; align-items:center; margin-bottom:32px;}
.stat-cards{display:grid; grid-template-columns:repeat(3,1fr); gap:20px; margin-bottom:40px;}
@media (max-width:700px){ .stat-cards{grid-template-columns:1fr;} }
.stat-card{background:var(--surface); border:1px solid var(--line); border-radius:3px; padding:22px;}
.stat-card .num{font-family:var(--display); font-size:1.8rem; font-weight:700;}
.stat-card .label{font-family:var(--mono); font-size:0.75rem; color:var(--ink-soft);}
.login-box{max-width:380px; margin:100px auto; background:var(--surface); border:1px solid var(--line); border-radius:3px; padding:40px;}
.badge{font-family:var(--mono); font-size:0.72rem; padding:4px 10px; border-radius:10px; display:inline-block;}
.badge-pending{background:#FBF0DE; color:#8A6116;}
.badge-paid{background:var(--teal-soft); color:var(--teal);}