/* Shared CSS for Sino Great Chemical Website */
:root {
  --navy: #0A1628;
  --navy-mid: #112240;
  --navy-light: #1a3155;
  --gold: #C9952A;
  --gold-light: #E5B84A;
  --gold-pale: #F5E6C0;
  --white: #FFFFFF;
  --off-white: #F8F6F1;
  --gray-100: #F0EDE8;
  --gray-300: #C8C4BC;
  --gray-500: #8A8680;
  --text-dark: #1A1612;
  --text-mid: #3D3830;
  --accent-green: #2D6B4F;
  --font-display: 'Cormorant Garamond', serif;
  --font-body: 'Outfit', sans-serif;
  --transition: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --shadow-lg: 0 32px 80px rgba(10, 22, 40, 0.18);
  --shadow-card: 0 4px 24px rgba(10, 22, 40, 0.10);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px;-webkit-text-size-adjust:100%}
body{font-family:var(--font-body);background:var(--white);color:var(--text-dark);line-height:1.6;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
button{cursor:pointer;border:none;background:none;font-family:var(--font-body)}
.nav{position:fixed;top:0;left:0;right:0;z-index:1000;padding:0 2rem;transition:all 0.4s var(--transition)}
.nav-inner{max-width:1440px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:80px;border-bottom:1px solid transparent;transition:all 0.4s var(--transition)}
.nav.scrolled{background:rgba(10,22,40,0.97);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}
.nav.scrolled .nav-inner{border-bottom-color:rgba(201,149,42,0.2)}
.nav-logo{display:flex;align-items:center;gap:12px}
.nav-logo-icon{width:48px;height:48px;background:linear-gradient(135deg,var(--gold),var(--gold-light));border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;color:var(--navy);font-family:var(--font-body);letter-spacing:-0.5px;flex-shrink:0}
.nav-logo-text{display:flex;flex-direction:column}
.nav-logo-name{font-family:var(--font-display);font-size:1.1rem;font-weight:600;color:var(--white);line-height:1.1;letter-spacing:0.02em}
.nav-logo-sub{font-size:0.62rem;color:var(--gold);letter-spacing:0.15em;text-transform:uppercase;font-weight:400}
.nav-links{display:flex;align-items:center;gap:2.5rem;list-style:none}
.nav-links a{font-size:0.82rem;font-weight:500;color:rgba(255,255,255,0.85);letter-spacing:0.08em;text-transform:uppercase;transition:color 0.3s;position:relative}
.nav-links a::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:1px;background:var(--gold);transition:width 0.3s var(--transition)}
.nav-links a:hover{color:var(--gold)}
.nav-links a:hover::after{width:100%}
.btn-nav{padding:10px 24px;background:var(--gold);color:var(--navy);font-size:0.8rem;font-weight:600;letter-spacing:0.1em;text-transform:uppercase;border-radius:2px;transition:all 0.3s var(--transition)}
.btn-nav:hover{background:var(--gold-light);transform:translateY(-1px)}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.hamburger span{display:block;width:26px;height:2px;background:var(--white);transition:all 0.3s}
.page-hero{height:45vh;min-height:380px;display:flex;align-items:flex-end;position:relative;overflow:hidden;margin-top:0;padding-top:80px}
.page-hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.page-hero-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(10,22,40,0.92) 0%,rgba(10,22,40,0.4) 100%)}
.page-hero-content{position:relative;z-index:1;padding:0 4rem 4rem;max-width:1440px;margin:0 auto;width:100%}
.breadcrumb{font-size:0.72rem;letter-spacing:0.12em;text-transform:uppercase;color:rgba(255,255,255,0.45);margin-bottom:0.75rem}
.breadcrumb span{color:var(--gold)}
.page-hero-title{font-family:var(--font-display);font-size:clamp(2.5rem,5vw,4rem);font-weight:300;color:var(--white);line-height:1.1}
.section{padding:7rem 2rem}
.container{max-width:1440px;margin:0 auto}
.section-label{display:inline-flex;align-items:center;gap:12px;margin-bottom:1rem}
.section-label-line{width:32px;height:1px;background:var(--gold)}
.section-label-text{font-size:0.72rem;font-weight:600;letter-spacing:0.22em;text-transform:uppercase;color:var(--gold)}
.section-title{font-family:var(--font-display);font-size:clamp(2rem,4vw,3.5rem);font-weight:300;line-height:1.12;color:var(--navy);letter-spacing:-0.01em}
.section-title em{font-style:italic;color:var(--gold)}
.btn-primary{display:inline-flex;align-items:center;gap:10px;padding:16px 36px;background:var(--gold);color:var(--navy);font-size:0.82rem;font-weight:600;letter-spacing:0.12em;text-transform:uppercase;border-radius:2px;transition:all 0.3s var(--transition)}
.btn-primary:hover{background:var(--gold-light);transform:translateY(-2px);box-shadow:0 12px 32px rgba(201,149,42,0.35)}
.gallery-strip{display:flex;gap:6px;overflow-x:auto;padding:0 2rem;scrollbar-width:none;-ms-overflow-style:none}
.gallery-strip::-webkit-scrollbar{display:none}
.gallery-item{flex-shrink:0;width:340px;aspect-ratio:3/2;overflow:hidden}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s var(--transition);filter:brightness(0.85) saturate(0.9)}
.gallery-item:hover img{transform:scale(1.06);filter:brightness(1) saturate(1)}
.gallery-scroll-btn{display:flex;align-items:center;gap:1rem;margin:2rem 2rem 0}
.g-btn{width:48px;height:48px;border:1px solid rgba(255,255,255,0.2);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--white);font-size:1.1rem;cursor:pointer;transition:all 0.3s}
.g-btn:hover{background:var(--gold);border-color:var(--gold);color:var(--navy)}
.mobile-nav{position:fixed;inset:0;background:var(--navy);z-index:999;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:2rem;transform:translateX(-100%);transition:transform 0.4s var(--transition)}
.mobile-nav.open{transform:translateX(0)}
.mobile-nav a{font-family:var(--font-display);font-size:2.5rem;font-weight:300;color:var(--white);transition:color 0.3s}
.mobile-nav a:hover{color:var(--gold)}
.mobile-nav-close{position:absolute;top:1.5rem;right:2rem;font-size:2rem;color:var(--white);cursor:pointer}
.reveal{opacity:0;transform:translateY(40px);transition:all 0.8s var(--transition)}
.reveal.visible{opacity:1;transform:translateY(0)}
.footer{background:#060E1A;padding:5rem 2rem 2rem}
.footer-grid{max-width:1440px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:4rem;padding-bottom:4rem;border-bottom:1px solid rgba(255,255,255,0.06);margin-bottom:2rem}
.footer-brand p{font-size:0.88rem;color:rgba(255,255,255,0.4);line-height:1.8;margin:1.5rem 0;max-width:280px}
.footer-socials{display:flex;gap:10px}
.footer-social{width:36px;height:36px;border:1px solid rgba(255,255,255,0.1);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:0.9rem;color:rgba(255,255,255,0.5);transition:all 0.3s}
.footer-social:hover{border-color:var(--gold);color:var(--gold)}
.footer-col h4{font-size:0.72rem;font-weight:600;letter-spacing:0.2em;text-transform:uppercase;color:var(--gold);margin-bottom:1.5rem}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-links li a{font-size:0.85rem;color:rgba(255,255,255,0.4);transition:color 0.3s}
.footer-links li a:hover{color:var(--white)}
.footer-contact-item{display:flex;align-items:flex-start;gap:10px;margin-bottom:12px}
.footer-contact-icon{font-size:0.9rem;margin-top:2px;flex-shrink:0;color:var(--gold)}
.footer-contact-text{font-size:0.82rem;color:rgba(255,255,255,0.4);line-height:1.5}
.footer-bottom{max-width:1440px;margin:0 auto;display:flex;align-items:center;justify-content:space-between}
.footer-copy{font-size:0.78rem;color:rgba(255,255,255,0.25)}
.footer-bottom-links{display:flex;gap:2rem}
.footer-bottom-links a{font-size:0.75rem;color:rgba(255,255,255,0.25);transition:color 0.3s}
.footer-bottom-links a:hover{color:rgba(255,255,255,0.6)}
@media(max-width:768px){
  .nav-links,.nav-cta{display:none}
  .hamburger{display:flex}
  .page-hero-content{padding:0 1.5rem 3rem}
  .footer-grid{grid-template-columns:1fr;gap:2rem}
  .footer-bottom{flex-direction:column;gap:1rem;text-align:center}
  .gallery-item{width:260px}
  .section{padding:4rem 1.5rem}
  .about-intro-grid{grid-template-columns:1fr!important}
  .leadership-cards{grid-template-columns:1fr!important}
}