/* ===== RESET & BASE ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --black:#0a0a0a;--charcoal:#1a1a1a;--dark:#222;--mid:#333;--light:#999;--white:#f5f0eb;
  --orange:#FF6B00;--amber:#FFA500;--deep-orange:#E65100;
  --font-heading:'Segoe UI',system-ui,-apple-system,sans-serif;
  --font-body:'Segoe UI',system-ui,-apple-system,sans-serif;
}
html{scroll-behavior:smooth}
body{background:var(--black);color:var(--white);font-family:var(--font-body);line-height:1.6;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--orange);text-decoration:none}
a:hover{color:var(--amber)}

/* ===== UTILITY ===== */
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-title{font-size:clamp(2rem,5vw,3rem);font-weight:900;text-transform:uppercase;letter-spacing:3px;text-align:center;margin-bottom:16px}
.section-subtitle{text-align:center;color:var(--light);font-size:1.1rem;max-width:700px;margin:0 auto 48px}
.accent{color:var(--orange)}
.btn{display:inline-block;padding:14px 36px;background:var(--orange);color:var(--black);font-weight:800;font-size:1rem;text-transform:uppercase;letter-spacing:2px;border:none;border-radius:4px;cursor:pointer;transition:all .3s}
.btn:hover{background:var(--amber);transform:translateY(-2px);box-shadow:0 8px 30px rgba(255,107,0,.3)}
.btn:focus{outline:2px solid var(--amber);outline-offset:4px}
.btn-outline{background:transparent;border:2px solid var(--orange);color:var(--orange)}
.btn-outline:hover{background:var(--orange);color:var(--black)}

/* ===== NAV ===== */
nav{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(10,10,10,.92);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,107,0,.15);padding:16px 0;transition:all .3s}
nav .container{display:flex;justify-content:space-between;align-items:center}
.logo{font-size:1.4rem;font-weight:900;letter-spacing:4px;text-transform:uppercase;color:var(--white)}
.logo span{color:var(--orange)}
.nav-links{display:flex;gap:28px;list-style:none;align-items:center}
.nav-links a{color:var(--light);font-size:.85rem;text-transform:uppercase;letter-spacing:2px;font-weight:600;transition:color .3s}
.nav-links a:hover{color:var(--orange)}
.nav-toggle{display:none;background:none;border:none;color:var(--white);font-size:1.5rem;cursor:pointer}
.nav-toggle:focus{outline:2px solid var(--orange);outline-offset:4px}

/* ===== HERO ===== */
.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;position:relative;padding:120px 24px 80px;background:radial-gradient(ellipse at center bottom,rgba(255,107,0,.08) 0%,transparent 60%),var(--black)}
.hero::before{content:'';position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 0L60 30L30 60L0 30Z' fill='none' stroke='%23FF6B00' stroke-width='.3' opacity='.07'/%3E%3C/svg%3E");opacity:.5}
.hero-content{position:relative;z-index:1;max-width:800px}
.hero-tag{font-size:.9rem;text-transform:uppercase;letter-spacing:6px;color:var(--orange);margin-bottom:20px;font-weight:700}
.hero h1{font-size:clamp(3rem,8vw,5.5rem);font-weight:900;text-transform:uppercase;letter-spacing:4px;line-height:1.05;margin-bottom:24px}
.hero h1 span{display:block;color:var(--orange);font-size:clamp(1.2rem,3vw,1.8rem);letter-spacing:8px;margin-top:8px}
.hero p{font-size:1.15rem;color:var(--light);max-width:550px;margin:0 auto 40px;line-height:1.7}
.hero-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ===== PRODUCTS ===== */
#products{background:var(--charcoal)}
.product-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:32px}
.product-card{background:var(--dark);border-radius:12px;overflow:hidden;border:1px solid rgba(255,107,0,.1);transition:all .3s;position:relative}
.product-card:hover{transform:translateY(-6px);border-color:rgba(255,107,0,.3);box-shadow:0 20px 60px rgba(0,0,0,.5)}
.product-card .badge{position:absolute;top:16px;right:16px;background:var(--orange);color:var(--black);font-size:.7rem;font-weight:800;padding:4px 12px;border-radius:20px;text-transform:uppercase;letter-spacing:1px;z-index:2}
.product-img{width:100%;aspect-ratio:6/7;display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(180deg,rgba(255,107,0,.03),transparent)}
.product-img img{max-height:320px;width:auto;max-width:80%;filter:drop-shadow(0 10px 30px rgba(0,0,0,.5))}
.product-info{padding:24px}
.product-name{font-size:1.3rem;font-weight:900;text-transform:uppercase;letter-spacing:2px;margin-bottom:6px}
.product-desc{color:var(--light);font-size:.9rem;margin-bottom:16px;line-height:1.6}
.product-bottom{display:flex;justify-content:space-between;align-items:center}
.product-price{font-size:1.4rem;font-weight:900;color:var(--orange)}
.product-price .old{text-decoration:line-through;color:var(--light);font-size:.9rem;font-weight:400;margin-right:8px}
.btn-cart{padding:10px 24px;font-size:.8rem}

/* ===== SCIENCE ===== */
#science{background:var(--black);position:relative}
.science-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:32px}
.science-card{background:var(--charcoal);border:1px solid rgba(255,107,0,.1);border-radius:12px;padding:36px;text-align:center;transition:all .3s}
.science-card:hover{border-color:rgba(255,107,0,.3)}
.science-icon{font-size:3rem;margin-bottom:16px}
.science-card h3{font-size:1.1rem;font-weight:800;text-transform:uppercase;letter-spacing:2px;margin-bottom:12px}
.science-card p{color:var(--light);font-size:.9rem;line-height:1.7}

/* ===== FOUNDER ===== */
#founder{background:var(--charcoal)}
.founder-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.founder-img{border-radius:12px;overflow:hidden;border:2px solid rgba(255,107,0,.2)}
.founder-img img{width:100%;aspect-ratio:3/4;object-fit:cover}
.founder-text h3{font-size:1.8rem;font-weight:900;text-transform:uppercase;letter-spacing:2px;margin-bottom:8px}
.founder-text .title{color:var(--orange);font-size:.9rem;text-transform:uppercase;letter-spacing:3px;font-weight:700;margin-bottom:24px;display:block}
.founder-text p{color:var(--light);margin-bottom:16px;line-height:1.8;font-size:.95rem}
.founder-text p:first-of-type{color:var(--white);font-size:1.05rem}

/* ===== TESTIMONIALS ===== */
#testimonials{background:var(--black)}
.testimonial-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:28px}
.testimonial{background:var(--charcoal);border-radius:12px;padding:32px;border:1px solid rgba(255,107,0,.08);position:relative}
.testimonial::before{content:'"';position:absolute;top:12px;left:24px;font-size:4rem;color:var(--orange);opacity:.2;font-family:Georgia,serif;line-height:1}
.testimonial p{color:var(--light);font-size:.95rem;line-height:1.7;margin-bottom:16px;font-style:italic;position:relative;z-index:1}
.testimonial .author{display:flex;align-items:center;gap:12px}
.testimonial .author .stars{color:var(--orange);font-size:.85rem;letter-spacing:2px}
.testimonial .author .name{font-weight:700;font-size:.85rem}
.testimonial .author .detail{color:var(--light);font-size:.8rem}

/* ===== FAQ ===== */
#faq{background:var(--charcoal)}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border-bottom:1px solid rgba(255,107,0,.1);padding:24px 0}
.faq-q{appearance:none;background:none;border:none;color:inherit;width:100%;text-align:left;padding:0;font-size:1.05rem;font-weight:700;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;transition:color .3s;user-select:none}
.faq-q:hover{color:var(--orange)}
.faq-q:focus{outline:2px solid var(--orange);outline-offset:4px}
.faq-q::after{content:'+';font-size:1.5rem;color:var(--orange);transition:transform .3s;flex-shrink:0}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .3s;color:var(--light);font-size:.95rem;line-height:1.7}
.faq-item.open .faq-a{max-height:300px;padding-top:16px}

/* ===== FOOTER ===== */
footer{background:var(--black);border-top:1px solid rgba(255,107,0,.1);padding:48px 0 32px;text-align:center}
footer .logo{font-size:1.2rem;margin-bottom:16px;display:inline-block}
footer p{color:#666;font-size:.8rem;max-width:600px;margin:0 auto 12px;line-height:1.6}
footer .disclaimer{color:#555;font-size:.7rem;margin-top:24px;padding-top:24px;border-top:1px solid rgba(255,255,255,.05)}

/* ===== CART TOAST ===== */
.toast{position:fixed;bottom:30px;right:30px;background:var(--orange);color:var(--black);padding:16px 28px;border-radius:8px;font-weight:700;font-size:.9rem;transform:translateY(100px);opacity:0;transition:all .4s;z-index:9999}
.toast.show{transform:translateY(0);opacity:1}

/* ===== RESPONSIVE ===== */
@media(max-width:768px){
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:rgba(10,10,10,.98);padding:24px;gap:20px;border-bottom:1px solid rgba(255,107,0,.15)}
  .nav-links.open{display:flex}
  .nav-toggle{display:block}
  .founder-grid{grid-template-columns:1fr;gap:32px}
  .product-grid{grid-template-columns:1fr}
  .hero h1{font-size:clamp(2.2rem,7vw,3.5rem)}
  .section{padding:60px 0}
}