*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:'Kanit',system-ui,sans-serif;font-weight:300;color:#1F2937;background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased}:root{--cyan:#06B6D4;--cyan-dark:#0891B2;--navy:#1F2937;--navy-dark:#111827;--emerald:#059669;--g50:#F9FAFB;--g100:#F3F4F6;--g200:#E5E7EB;--g300:#D1D5DB;--g400:#9CA3AF;--g500:#6B7280;--g600:#4B5563;--g900:#111827;--sh-md:0 4px 16px rgba(0,0,0,.08),0 2px 6px rgba(0,0,0,.05);--sh-lg:0 12px 40px rgba(0,0,0,.1),0 4px 12px rgba(0,0,0,.06);--ease:cubic-bezier(.16,1,.3,1)}.container{width:100%;max-width:1160px;margin:0 auto;padding:0 24px}nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--g200)}.nav-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}.logo{display:flex;align-items:center;gap:10px;text-decoration:none}.logo-icon{width:36px;height:36px;background:var(--cyan);border-radius:8px;display:flex;align-items:flex-end;justify-content:center;gap:3px;padding:7px 6px 6px}.logo-bar{background:#fff;width:5px;border-radius:2px 2px 0 0}.logo-bar:nth-child(1){height:10px}.logo-bar:nth-child(2){height:15px}.logo-bar:nth-child(3){height:8px}.logo-text{font-weight:600;font-size:1.1rem;color:var(--navy)}.logo-text span{color:var(--cyan)}.nav-links{display:flex;align-items:center;gap:4px;list-style:none}.nav-links a{font-weight:400;font-size:.9rem;color:var(--g600);text-decoration:none;padding:8px 14px;border-radius:8px}.nav-links a:hover{background:var(--g50);color:var(--navy)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;font-family:inherit;font-weight:500;font-size:.9rem;text-decoration:none;border:none;cursor:pointer;border-radius:9999px;padding:10px 22px;transition:all .22s var(--ease);white-space:nowrap}.btn-primary{background:var(--navy);color:#fff}.btn-primary:hover{background:var(--navy-dark);transform:translateY(-1px);box-shadow:var(--sh-md)}.btn-cyan{background:var(--cyan);color:#fff}.btn-cyan:hover{background:var(--cyan-dark);transform:translateY(-1px);box-shadow:0 4px 14px rgba(6,182,212,.35)}.btn-ghost{background:#fff;color:var(--navy);border:1.5px solid var(--g300)}.btn-ghost:hover{border-color:var(--navy);transform:translateY(-1px)}.btn-full{width:100%}.checkout-hero{padding:130px 0 72px;background:linear-gradient(180deg,#fff 0%,var(--g50) 100%);border-bottom:1px solid var(--g200)}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);margin-bottom:16px}h1{font-size:clamp(2.3rem,4.5vw,3.5rem);line-height:1.08;letter-spacing:-.02em;color:var(--navy);font-weight:600;margin-bottom:18px}h1 span{color:var(--cyan)}.lead{font-size:1.08rem;color:var(--g600);line-height:1.75;max-width:560px;margin-bottom:28px}.trust-row{display:flex;flex-wrap:wrap;gap:10px}.trust-pill{font-size:.8rem;font-weight:400;color:var(--g600);background:#fff;border:1px solid var(--g200);border-radius:9999px;padding:7px 13px}.summary-card{background:#fff;border:1px solid var(--g200);border-radius:18px;padding:30px;box-shadow:var(--sh-lg)}.summary-top{display:flex;justify-content:space-between;gap:18px;align-items:flex-start;margin-bottom:24px}.summary-label{font-size:.72rem;font-weight:700;color:var(--g400);letter-spacing:.12em;text-transform:uppercase;margin-bottom:4px}.summary-title{font-size:1.35rem;font-weight:600;color:var(--navy)}.summary-price{font-size:1.45rem;font-weight:700;color:var(--navy);text-align:right}.stripe-badge{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:500;color:#635BFF;background:#F7F6FF;border:1px solid #E5E2FF;border-radius:9999px;padding:6px 12px;margin-top:8px}.checkout-note{font-size:.9rem;color:var(--g500);line-height:1.65;margin-bottom:22px}.line-items{border-top:1px solid var(--g200);border-bottom:1px solid var(--g200);padding:18px 0;margin-bottom:22px;display:flex;flex-direction:column;gap:10px}.line-item{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:.9rem;color:var(--g600)}.line-item strong{font-weight:500;color:var(--navy)}.helper-text{font-size:.78rem;color:var(--g400);line-height:1.55;margin-top:12px}.section{padding:86px 0}.section-header{max-width:680px;margin:0 auto 40px;text-align:center}.section-header h2{font-size:clamp(1.7rem,3vw,2.45rem);line-height:1.18;color:var(--navy);font-weight:600;margin-bottom:12px}.section-header p{color:var(--g600);font-size:1rem}.products-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.product-card{background:#fff;border:1px solid var(--g200);border-radius:16px;padding:24px;transition:all .25s var(--ease);display:flex;flex-direction:column;min-height:260px}.product-card:hover{box-shadow:var(--sh-md);transform:translateY(-3px);border-color:var(--g300)}.product-card.featured{border-color:var(--cyan);background:rgba(6,182,212,.025)}.product-icon{font-size:2rem;margin-bottom:14px}.product-kicker{font-size:.68rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--cyan);margin-bottom:6px}.product-title{font-size:1.05rem;font-weight:600;color:var(--navy);margin-bottom:8px}.product-desc{font-size:.86rem;color:var(--g500);line-height:1.6;margin-bottom:18px}.product-price{font-size:1.4rem;font-weight:700;color:var(--navy);margin-top:auto;margin-bottom:16px}.how{background:var(--g50);border-top:1px solid var(--g200);border-bottom:1px solid var(--g200)}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.step{background:#fff;border:1px solid var(--g200);border-radius:16px;padding:24px}.step-num{width:34px;height:34px;background:var(--cyan);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.85rem;font-weight:700;margin-bottom:16px}.step h3{font-size:1rem;font-weight:600;color:var(--navy);margin-bottom:8px}.step p{font-size:.88rem;color:var(--g500);line-height:1.6}@media(max-width:980px){.hero-grid,.products-grid,.steps{grid-template-columns:1fr}.nav-links{display:none}.checkout-hero{padding-top:110px}.summary-price{text-align:left}.summary-top{flex-direction:column}}@media(max-width:640px){.container{padding:0 18px}.summary-card,.product-card,.step{border-radius:12px;padding:22px}}