/* ============ WINWIN AUTO PARTS — style.css ============ */
:root{
  --navy:#0c2b4d;
  --navy-2:#103a66;
  --navy-3:#081f3a;
  --accent:#f59e0b;
  --accent-d:#d97706;
  --ink:#1f2937;
  --muted:#5b6675;
  --bg:#f5f7fa;
  --card:#ffffff;
  --line:#e4e9f0;
  --radius:12px;
  --shadow:0 8px 28px rgba(12,43,77,.10);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Tahoma,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);line-height:1.65;background:#fff;font-size:16px}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{max-width:1200px;margin-inline:auto;padding-inline:24px}
section{scroll-margin-top:90px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 26px;border-radius:8px;font-weight:600;font-size:15px;border:2px solid transparent;cursor:pointer;transition:.2s;white-space:nowrap}
.btn-accent{background:var(--accent);color:#1a1a1a;border-color:var(--accent)}
.btn-accent:hover{background:var(--accent-d);border-color:var(--accent-d);color:#fff}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.12)}
.btn-lg{padding:14px 34px;font-size:16px}

/* ---------- top bar ---------- */
.topbar{background:var(--navy-3);color:#cdd7e4;font-size:13.5px}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;min-height:40px;gap:12px;flex-wrap:wrap;padding-top:4px;padding-bottom:4px}
.topbar-contact{display:flex;gap:22px;flex-wrap:wrap}
.topbar-link{display:inline-flex;align-items:center;gap:7px;color:#cdd7e4}
.topbar-link:hover{color:#fff}

/* language switcher */
.lang-switcher{position:relative}
.lang-btn{display:inline-flex;align-items:center;gap:7px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#fff;border-radius:7px;padding:6px 12px;font-size:13.5px;cursor:pointer;font-family:inherit}
.lang-btn:hover{background:rgba(255,255,255,.16)}
.lang-menu{position:absolute;inset-inline-end:0;top:calc(100% + 8px);background:#fff;border-radius:10px;box-shadow:0 14px 40px rgba(0,0,0,.22);min-width:150px;padding:6px;display:none;z-index:200}
.lang-menu.open{display:block}
.lang-menu button{display:flex;width:100%;text-align:start;background:none;border:0;padding:9px 12px;font-size:14px;color:var(--ink);border-radius:7px;cursor:pointer;font-family:inherit}
.lang-menu button:hover{background:var(--bg)}
.lang-menu button.active{background:var(--navy);color:#fff}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;background:#fff;z-index:100;transition:box-shadow .2s}
.site-header.scrolled{box-shadow:0 4px 20px rgba(12,43,77,.12)}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:76px;gap:16px}
.logo{display:flex;align-items:center;gap:11px}
.logo-badge{display:inline-flex;align-items:center;background:#000;border-radius:12px;padding:8px 18px;line-height:0;flex:none}
.logo-badge img{height:44px;width:auto;display:block}
@media(max-width:640px){.logo-badge img{height:36px}.logo-badge{padding:6px 14px}}
.logo-mark{width:44px;height:44px;border-radius:10px;background:var(--navy);color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:24px}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:21px;letter-spacing:1px;color:var(--navy)}
.logo-text small{font-size:11px;letter-spacing:3.5px;color:var(--muted);font-weight:600}
.logo.light .logo-text strong{color:#fff}
.main-nav{display:flex;gap:30px}
.main-nav a{font-weight:500;font-size:15.5px;color:var(--ink);position:relative;padding:6px 0}
.main-nav a::after{content:"";position:absolute;inset-inline-start:0;bottom:0;height:2.5px;width:0;background:var(--accent);border-radius:2px;transition:.25s}
.main-nav a:hover{color:var(--navy)}
.main-nav a:hover::after{width:100%}
.header-actions{display:flex;align-items:center;gap:14px}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.hamburger span{width:24px;height:2.5px;background:var(--navy);border-radius:2px;transition:.25s}

/* ---------- hero ---------- */
.hero{background:linear-gradient(105deg,rgba(8,31,58,.94) 20%,rgba(8,31,58,.72) 55%,rgba(8,31,58,.35) 100%),url('../images/hero.jpg') center/cover no-repeat;color:#fff;padding:110px 0 120px}
.hero-inner{max-width:760px}
.hero-badge{display:inline-block;background:rgba(245,158,11,.16);border:1px solid rgba(245,158,11,.55);color:var(--accent);font-size:13px;font-weight:600;letter-spacing:1px;text-transform:uppercase;padding:7px 16px;border-radius:50px;margin-bottom:22px}
.hero h1{font-size:52px;line-height:1.18;font-weight:800;margin-bottom:20px;letter-spacing:-.5px}
.hero-sub{font-size:18px;color:#dbe4ef;max-width:640px;margin-bottom:34px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:40px}
.hero-points{display:flex;gap:28px;flex-wrap:wrap}
.hero-points li{display:flex;align-items:center;gap:9px;font-size:15px;color:#e7edf5;font-weight:500}
.hero-points svg{color:var(--accent);flex-shrink:0}

/* ---------- strip ---------- */
.strip{background:var(--bg);padding:56px 0}
.strip-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.strip-item{display:flex;gap:15px;background:#fff;border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.strip-icon{width:48px;height:48px;flex-shrink:0;border-radius:12px;background:rgba(245,158,11,.14);color:var(--accent-d);display:flex;align-items:center;justify-content:center}
.strip-icon svg{width:24px;height:24px}
.strip-item h3{font-size:16.5px;margin-bottom:4px;color:var(--navy)}
.strip-item p{font-size:14px;color:var(--muted);line-height:1.55}

/* ---------- section head ---------- */
.section-head{text-align:center;max-width:720px;margin:0 auto 52px}
.section-head .eyebrow,.eyebrow{display:inline-block;color:var(--accent-d);font-weight:700;font-size:13.5px;letter-spacing:2.5px;text-transform:uppercase;margin-bottom:12px}
.section-head h2{font-size:36px;color:var(--navy);margin-bottom:14px;letter-spacing:-.3px}
.section-head p{color:var(--muted);font-size:17px}
.section-head.light h2{color:#fff}
.section-head.light p{color:#c3cfdd}

/* ---------- products ---------- */
.products{padding:96px 0;background:#fff}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.product-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.product-card:hover{transform:translateY(-6px);box-shadow:0 18px 44px rgba(12,43,77,.14)}
.product-img{aspect-ratio:4/3;overflow:hidden;background:var(--bg)}
.product-img img{width:100%;height:100%;object-fit:cover;transition:.4s}
.product-card:hover .product-img img{transform:scale(1.05)}
.product-body{padding:24px;display:flex;flex-direction:column;flex:1}
.product-body h3{font-size:19px;color:var(--navy);margin-bottom:9px}
.product-body p{font-size:14.5px;color:var(--muted);flex:1;margin-bottom:16px}
.inquiry-link{display:inline-flex;align-items:center;gap:8px;color:var(--accent-d);font-weight:600;font-size:14.5px}
.inquiry-link:hover{gap:12px;color:var(--navy)}
.inquiry-link svg{transition:.2s}
[dir="rtl"] .inquiry-link svg{transform:scaleX(-1)}

/* ---------- why ---------- */
.why{background:linear-gradient(135deg,var(--navy-3),var(--navy-2));padding:96px 0;color:#fff}
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.why-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:30px 24px;transition:.25s}
.why-card:hover{background:rgba(255,255,255,.1);transform:translateY(-4px)}
.why-icon{width:52px;height:52px;border-radius:14px;background:var(--accent);color:#1a1a1a;display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.why-icon svg{width:26px;height:26px}
.why-card h3{font-size:17.5px;margin-bottom:10px}
.why-card p{font-size:14.5px;color:#c3cfdd;line-height:1.6}

/* ---------- about ---------- */
.about{padding:96px 0;background:var(--bg)}
.about-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:center}
.about-img img{border-radius:16px;box-shadow:var(--shadow);width:100%}
.about-text h2{font-size:32px;color:var(--navy);margin-bottom:20px;letter-spacing:-.3px}
.about-text p{color:var(--muted);margin-bottom:16px;font-size:16px}
.checklist{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.checklist li{display:flex;align-items:flex-start;gap:11px;font-weight:500;color:var(--ink)}
.checklist svg{color:#16a34a;flex-shrink:0;margin-top:5px}

/* ---------- contact ---------- */
.contact{padding:96px 0;background:#fff}
.contact-grid{display:grid;grid-template-columns:1fr 1.35fr;gap:44px;align-items:start}
.contact-info{display:flex;flex-direction:column;gap:18px}
.info-card{display:flex;gap:16px;background:var(--bg);border-radius:var(--radius);padding:22px}
.info-icon{width:48px;height:48px;flex-shrink:0;border-radius:12px;background:var(--navy);color:var(--accent);display:flex;align-items:center;justify-content:center}
.info-icon svg{width:23px;height:23px}
.info-card h3{font-size:16px;color:var(--navy);margin-bottom:3px}
.info-card p{font-weight:600;font-size:15.5px}
.info-card p a:hover{color:var(--accent-d)}
.info-card small{color:var(--muted);font-size:13.5px}
.inquiry-form{background:var(--bg);border-radius:16px;padding:34px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-group{margin-bottom:18px;display:flex;flex-direction:column}
.form-group label{font-weight:600;font-size:14.5px;margin-bottom:7px;color:var(--navy)}
.form-group input,.form-group select,.form-group textarea{font-family:inherit;font-size:15px;padding:12px 15px;border:1.5px solid var(--line);border-radius:9px;background:#fff;color:var(--ink);width:100%}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(245,158,11,.18)}
.form-group textarea{resize:vertical}
.inquiry-form .btn{width:100%;margin-top:6px}
.form-note{font-size:13px;color:var(--muted);margin-top:12px;text-align:center}

/* ---------- footer ---------- */
.site-footer{background:var(--navy-3);color:#aebdcd}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding:64px 0 44px}
.footer-brand p{font-size:14.5px;margin-top:16px;max-width:340px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:18px}
.footer-col a,.footer-col span{display:block;font-size:14.5px;margin-bottom:11px}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;font-size:13.5px;text-align:center}

/* ---------- responsive ---------- */
@media(max-width:1024px){
  .strip-grid{grid-template-columns:repeat(2,1fr)}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .why-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr;gap:36px}
  .contact-grid{grid-template-columns:1fr}
}
@media(max-width:820px){
  .main-nav{position:fixed;inset-inline:0;top:116px;background:#fff;flex-direction:column;gap:0;padding:10px 24px 20px;box-shadow:0 20px 40px rgba(12,43,77,.15);display:none}
  .main-nav.open{display:flex}
  .main-nav a{padding:13px 0;border-bottom:1px solid var(--line)}
  .main-nav a::after{display:none}
  .hamburger{display:flex}
  .hero{padding:80px 0 90px}
  .hero h1{font-size:36px}
  .hero-sub{font-size:16.5px}
  .section-head h2{font-size:28px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 32px}
}
@media(max-width:600px){
  .product-grid{grid-template-columns:1fr}
  .strip-grid{grid-template-columns:1fr}
  .why-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .topbar-contact{gap:14px}
  .inquiry-form{padding:24px}
}