:root{
  --navy:#0F2841; --slate:#4A5568; --amber:#D69E2E; --offwhite:#FAFAFA;
  --white:#FFFFFF; --text:#1F2937; --muted:#6B7280;
  --radius:14px; --shadow:0 6px 30px rgba(15,40,65,.08);
  --font-display:'Montserrat','Segoe UI',system-ui,sans-serif;
  --font-body:'Inter','Segoe UI',system-ui,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);background:var(--offwhite);color:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased}
.container{max-width:1180px;margin:0 auto;padding:0 28px}
a{text-decoration:none}

.header{background:var(--navy);color:#fff;padding:16px 0;position:sticky;top:0;z-index:50}
.header .container{display:flex;align-items:center;justify-content:space-between}
.brand{font-family:var(--font-display);font-weight:700;font-size:1.05rem;letter-spacing:.02em}
.brand small{display:block;font-weight:400;font-size:.68rem;opacity:.65;letter-spacing:.08em;text-transform:uppercase}
.nav{display:flex;gap:24px;align-items:center}
.nav a{color:rgba(255,255,255,.82);font-size:.88rem;transition:color .2s}
.nav a:hover{color:var(--amber)}
.nav .active{color:var(--amber)}

.hero{background:linear-gradient(135deg,var(--navy) 0%,#16324f 100%);color:#fff;padding:80px 0 76px}
.hero .kicker{color:var(--amber);font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;font-weight:600;margin-bottom:18px}
.hero h1{font-family:var(--font-display);font-size:2.5rem;line-height:1.15;max-width:820px;font-weight:700}
.hero p{font-size:1.08rem;color:rgba(255,255,255,.85);max-width:680px;margin-top:20px}
.hero .cta-row{display:flex;gap:16px;margin-top:34px;flex-wrap:wrap}
.btn{display:inline-block;padding:14px 34px;border-radius:50px;font-family:var(--font-display);font-weight:600;font-size:.95rem;transition:all .25s}
.btn-amber{background:var(--amber);color:var(--navy)}
.btn-amber:hover{background:#e8b347;transform:translateY(-2px)}
.btn-outline{border:1.5px solid rgba(255,255,255,.5);color:#fff}
.btn-outline:hover{border-color:var(--amber);color:var(--amber)}

section{padding:68px 0}
.section-label{color:var(--amber);font-size:.75rem;letter-spacing:.14em;text-transform:uppercase;font-weight:700;margin-bottom:12px}
h2{font-family:var(--font-display);font-size:1.85rem;line-height:1.2;color:var(--navy);margin-bottom:16px}
.lead{color:var(--muted);max-width:760px;font-size:1.02rem}

.problem{background:var(--white)}
.problem-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:36px}
.card{background:var(--offwhite);border:1px solid #E5E7EB;border-radius:var(--radius);padding:28px;transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.card h3{font-family:var(--font-display);font-size:1.05rem;color:var(--navy);margin-bottom:10px}
.card p{font-size:.93rem;color:var(--slate)}
.card .flag{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;border-radius:20px;padding:3px 12px;margin-bottom:14px}
.flag-red{background:#FEE2E2;color:#B91C1C}
.flag-green{background:#D1FAE5;color:#065F46}

.products{background:var(--offwhite)}
.product{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);padding:40px;margin-top:28px;border-top:4px solid var(--amber)}
.product .row{display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center}
.product h3{font-family:var(--font-display);font-size:1.45rem;color:var(--navy)}
.product .sub{color:var(--amber);font-weight:600;font-size:.85rem;letter-spacing:.06em;text-transform:uppercase;margin:6px 0 14px}
.product ul{list-style:none;margin-top:16px}
.product li{padding:7px 0 7px 26px;position:relative;font-size:.94rem;color:var(--slate)}
.product li::before{content:"✓";position:absolute;left:0;color:var(--amber);font-weight:700}
.product .photo{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.product .photo img{width:100%;display:block;object-fit:cover}
.price-box{background:var(--navy);color:#fff;border-radius:var(--radius);padding:24px;margin-top:18px}
.price-box .label{font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;opacity:.7}
.price-box .num{font-family:var(--font-display);font-size:1.6rem;font-weight:700;color:var(--amber);margin:6px 0}
.price-box p{font-size:.84rem;opacity:.85;margin-top:8px}
.price-box .saving{color:#6EE7B7;font-weight:600;font-size:.92rem;margin-top:12px;padding-top:12px;border-top:1px solid rgba(255,255,255,.15)}

.compare{background:var(--white)}
table{width:100%;border-collapse:collapse;margin-top:32px;font-size:.92rem;background:var(--offwhite);border-radius:var(--radius);overflow:hidden}
th,td{padding:14px 18px;text-align:left;border-bottom:1px solid #E5E7EB}
th{background:var(--navy);color:#fff;font-family:var(--font-display);font-weight:600;font-size:.85rem;letter-spacing:.04em}
tr:nth-child(even) td{background:#F3F4F6}
td:first-child{font-weight:600;color:var(--navy)}
.tag{display:inline-block;font-size:.72rem;font-weight:700;padding:2px 10px;border-radius:16px;margin-left:6px}
.tag-plant{background:#D1FAE5;color:#065F46}
.tag-oil{background:#FEE2E2;color:#B91C1C}

.detail{background:var(--offwhite)}
.detail .grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:start;margin-top:32px}
.detail .gallery{display:flex;flex-direction:column;gap:20px}
.detail .gallery img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow);display:block}
.detail h3{font-family:var(--font-display);font-size:1.3rem;color:var(--navy);margin:26px 0 12px}
.detail ul{list-style:none}
.detail li{padding:7px 0 7px 26px;position:relative;font-size:.95rem;color:var(--slate)}
.detail li::before{content:"✓";position:absolute;left:0;color:var(--amber);font-weight:700}

.why{background:var(--navy);color:#fff}
.why h2{color:#fff}
.why .lead{color:rgba(255,255,255,.75)}
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:40px}
.why-item .icon{font-size:1.6rem;margin-bottom:10px}
.why-item h4{font-family:var(--font-display);font-size:.98rem;margin-bottom:8px}
.why-item p{font-size:.86rem;color:rgba(255,255,255,.7)}

.cta{background:var(--amber);color:var(--navy);text-align:center}
.cta h2{color:var(--navy)}
.cta p{max-width:600px;margin:14px auto 28px;color:rgba(15,40,65,.8)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{transform:translateY(-2px);background:#16324f}

.footer{background:var(--navy);color:rgba(255,255,255,.6);padding:36px 0;font-size:.82rem}
.footer .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px}
.footer a{color:rgba(255,255,255,.7)}
.footer a:hover{color:var(--amber)}

@media(max-width:900px){
  .hero h1{font-size:2rem}
  .problem-grid,.product .row,.detail .grid{grid-template-columns:1fr}
  .why-grid{grid-template-columns:1fr 1fr}
  .nav{display:none}
}