/* =========================================================
   CAR-TUNING THEME — "Industrial Cyber Garage" (Pretty Pack)
   - Neon Purple/Green + Metallic background
   - Animated grid, glossy buttons, 3D cards, chips & badges
   - Mobile friendly
   - Safe for PHP 5.3 (CSS/JS only)
   ========================================================= */

/* Fallback fonts approximate Orbitron/Rajdhani vibe */
@font-face{font-family:'SYS-Heading';src:local('Segoe UI'), local('Roboto');font-display:swap}
@font-face{font-family:'SYS-Mono';src:local('Consolas'), local('Menlo');font-display:swap}

:root{
  --bg:#0a0a0d;
  --text:#E7ECFF;
  --muted:#8A94A9;
  --accent:#A259FF;   /* Neon purple */
  --accent2:#19F7AE;  /* Neon green  */
  --surface:#14151A;
  --metal:#1F2028;
  --grid:#1a1d27;
  --glow: 0 0 20px rgba(162,89,255,.35);
  --glow2: 0 0 16px rgba(25,247,174,.25);
  --radius: 14px;
}

*{box-sizing:border-box}
html,body{
  margin:0; padding:0;
  color:var(--text);
  background: radial-gradient(1200px 800px at 70% -10%, #23263A 0%, #0A0A0D 60%);
  font-family:'SYS-Heading', system-ui, -apple-system, Segoe UI, Roboto, 'Noto Sans KR', '맑은 고딕', sans-serif;
  letter-spacing: .2px;
}

/* ========= Layout ========== */
.container{width:min(1120px,92%); margin:0 auto}

/* ========= Header ========== */
.site-header{
  position:sticky; top:0; z-index:30;
  background: linear-gradient(180deg, rgba(10,10,13,.9), rgba(10,10,13,.65));
  border-bottom: 1px solid rgba(255,255,255,.06);
  box-shadow: var(--glow);
  backdrop-filter: blur(6px);
}
.site-header .container{
  display:flex; align-items:center; justify-content:space-between;
  padding:12px 0;
}
.logo{
  font-weight:900; font-size:1.1rem; text-transform:uppercase; letter-spacing: .18em;
  color:var(--accent2);
  text-shadow: 0 0 8px rgba(25,247,174,.6);
  border: 1px solid rgba(25,247,174,.4);
  padding:6px 10px; border-radius:8px;
}
.site-nav a{
  color:var(--text); margin:0 10px; padding:8px 2px; position:relative;
}
.site-nav a::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transform: scaleX(0); transform-origin:left; transition:transform .25s ease;
}
.site-nav a:hover{ color:var(--accent2) }
.site-nav a:hover::after{ transform: scaleX(1) }

/* ========= Animated Grid Backdrop ========== */
.hero{
  position:relative; padding:40px 0 20px; overflow:hidden;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.grid-bg{
  position:absolute; inset:0; z-index:0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 28px 28px;
  animation: gridMove 18s linear infinite;
  opacity:.28;
}
@keyframes gridMove{
  from{ transform: translateY(0) translateX(0) }
  to{ transform: translateY(28px) translateX(28px) }
}
.hero .inner{ position:relative; z-index:1; display:grid; grid-template-columns:1.15fr .85fr; gap:26px; align-items:center }
.hero h1{ font-size:clamp(34px,5.4vw,64px); line-height:1.06; margin:.2em 0; text-transform:uppercase; color:var(--accent) }
.hero p{ color:var(--muted) }
.kv{ border-radius:16px; overflow:hidden; box-shadow: var(--glow), 0 24px 60px rgba(0,0,0,.4) }

/* ========= Chips & Badges ========== */
.badges{ display:flex; flex-wrap:wrap; gap:8px; margin:8px 0 2px }
.chip{
  display:inline-flex; align-items:center; gap:6px;
  padding:6px 10px; border-radius:999px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  color:var(--muted); font-size:.88rem;
}
.chip i{ width:8px; height:8px; border-radius:50%; display:inline-block; background:var(--accent2); box-shadow: var(--glow2) }

/* ========= Buttons ========= */
.btn{
  --b1: var(--accent); --b2: var(--accent2);
  position:relative; border:2px solid var(--b1); color:var(--b1);
  background: transparent; font-weight:900; text-transform:uppercase;
  padding:11px 18px; border-radius:10px; letter-spacing:.08em; overflow:hidden;
  transition: color .25s ease, border-color .25s ease, transform .15s ease;
}
.btn::before{
  /* sheen */
  content:""; position:absolute; top:-120%; left:-30%; width:60%; height:340%;
  transform: rotate(35deg); background: linear-gradient(90deg, transparent, rgba(255,255,255,.18), transparent);
  transition: transform .45s ease;
}
.btn:hover{ color:var(--b2); border-color: var(--b2); transform: translateY(-2px) }
.btn:hover::before{ transform: rotate(35deg) translateX(220%) }
.btn.solid{ background: linear-gradient(90deg,var(--accent), var(--accent2)); color:#071014; border-color: transparent; box-shadow: 0 12px 20px rgba(162,89,255,.25) }
.btn.solid:hover{ filter: brightness(1.05) }

/* ========= Section ========= */
.section{ padding:38px 0 }
.section h2{ margin:0 0 12px; letter-spacing:.12em; text-transform:uppercase }

/* ========= Parts Grid + Cards ========= */
.parts{ display:grid; grid-template-columns:repeat(3,1fr); gap:18px; margin-top:16px }
.card{
  background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.00)), var(--surface);
  border:1px solid var(--metal);
  border-radius: var(--radius);
  overflow:hidden;
  box-shadow: inset 0 0 15px rgba(162,89,255,.14), 0 10px 26px rgba(0,0,0,.45);
  transform-style: preserve-3d; perspective: 900px;
  transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.card:hover{
  transform: translateY(-6px) rotateX(2deg) rotateY(4deg);
  box-shadow: 0 16px 30px rgba(162,89,255,.38);
  border-color: rgba(162,89,255,.45);
}
.card img{ width:100%; height:210px; object-fit:cover; opacity:.92; filter: contrast(110%) saturate(112%) }
.card .p{ padding:12px }
.card h3{ margin:0 0 6px; color:var(--accent2) }
.small{ color:var(--muted) }

/* ========= Slider (banner) ========= */
.banner{
  border:1px solid rgba(255,255,255,.08);
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.00));
  border-radius: 16px;
  box-shadow: var(--glow);
  padding:10px;
}
.slider{ display:grid; grid-template-columns: 1fr 1fr 1fr; gap:10px }
.slider img{ width:100%; height:320px; object-fit:cover; border-radius:10px; box-shadow: 0 8px 24px rgba(0,0,0,.4) }

.cta{ display:flex; gap:12px; padding:14px 6px }

/* ========= Footer ========= */
.site-footer{
  background: rgba(10,10,13,.7);
  backdrop-filter: blur(4px);
  border-top: 1px solid rgba(255,255,255,.08);
  margin-top:42px;
}
.site-footer .container{ padding:18px 0; color:#9aa3b7; font-family:'SYS-Mono', monospace }

/* ========= Responsive ========= */
@media (max-width: 1024px){
  .hero .inner{ grid-template-columns: 1fr }
  .slider img{ height:280px }
}
@media (max-width: 900px){
  .parts{ grid-template-columns: 1fr 1fr }
}
@media (max-width: 540px){
  .parts{ grid-template-columns: 1fr }
  .slider{ grid-template-columns:1fr }
}