:root {
    --black: #080808;
    --black-soft: #121212;
    --red: #d9232e;
    --red-dark: #aa111d;
    --white: #fff;
    --paper: #f4f4f2;
    --gray: #8e8e8e;
    --line: rgba(255,255,255,.15);
    --shadow: 0 22px 60px rgba(0,0,0,.18);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
    margin: 0;
    min-width: 320px;
    overflow-x: hidden;
    color: var(--black);
    background: var(--white);
    font-family: "IBM Plex Sans", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
button, input, select { font: inherit; }
.shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 1000; padding: 10px 14px; transform: translateY(-150%); background: #fff; color: #000; }
.skip-link:focus { transform: none; }

.site-header {
    position: absolute;
    inset: 0 0 auto;
    z-index: 20;
    min-height: 76px;
    padding: 14px max(20px, calc((100vw - 1180px) / 2));
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: #fff;
    background: linear-gradient(180deg, rgba(0,0,0,.9), rgba(0,0,0,0));
}
.brand { text-decoration: none; font-size: 34px; font-weight: 700; letter-spacing: -2px; line-height: 1; }
.brand span { color: var(--red); font-weight: 500; }
.desktop-nav { display: flex; gap: 28px; align-items: center; }
.desktop-nav a, .mobile-menu a { text-decoration: none; text-transform: uppercase; font-size: 13px; font-weight: 700; letter-spacing: .12em; }
.desktop-nav a:hover { color: var(--red); }
.menu-button { display: none; align-items: center; gap: 10px; min-height: 44px; border: 0; background: transparent; color: #fff; text-transform: uppercase; font-weight: 700; letter-spacing: .1em; }
.menu-button i, .menu-button i::before, .menu-button i::after { display: block; width: 24px; height: 2px; background: currentColor; content: ""; transition: .25s ease; }
.menu-button i { position: relative; }
.menu-button i::before { position: absolute; top: -7px; }
.menu-button i::after { position: absolute; top: 7px; }
.menu-button[aria-expanded="true"] i { background: transparent; }
.menu-button[aria-expanded="true"] i::before { top: 0; transform: rotate(45deg); }
.menu-button[aria-expanded="true"] i::after { top: 0; transform: rotate(-45deg); }
.mobile-menu { position: absolute; top: 68px; left: 0; right: 0; padding: 24px 20px 30px; background: rgba(0,0,0,.96); border-top: 1px solid var(--line); }
.mobile-menu:not([hidden]) { display: grid; gap: 22px; }

.hero { position: relative; min-height: min(880px, 100svh); display: grid; align-items: end; overflow: hidden; color: #fff; background: #090909; }
.hero-image, .hero-shade { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-image { object-fit: cover; object-position: center 58%; }
.hero-shade { background: linear-gradient(90deg, rgba(0,0,0,.92) 0%, rgba(0,0,0,.7) 42%, rgba(0,0,0,.08) 75%), linear-gradient(0deg, rgba(0,0,0,.78), transparent 40%); }
.hero-content { position: relative; z-index: 2; padding-block: 150px 76px; }
.eyebrow, .section-kicker { margin: 0 0 16px; color: var(--red); text-transform: uppercase; letter-spacing: .14em; font-size: 13px; font-weight: 700; }
h1, h2, h3, p { overflow-wrap: break-word; }
h1 { max-width: 790px; margin: 0; font-size: clamp(42px, 6vw, 78px); line-height: .98; letter-spacing: -.045em; text-transform: uppercase; }
.hero-copy { max-width: 660px; margin: 28px 0; font-size: clamp(17px, 2vw, 21px); line-height: 1.55; color: rgba(255,255,255,.8); }
.button { min-height: 54px; padding: 15px 28px; display: inline-flex; align-items: center; justify-content: center; border: 0; border-radius: 3px; text-decoration: none; text-transform: uppercase; letter-spacing: .06em; font-size: 14px; font-weight: 700; cursor: pointer; transition: transform .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #fff; background: var(--red); box-shadow: 0 12px 30px rgba(217,35,46,.28); }
.button-primary:hover { background: var(--red-dark); }
.button-light { background: #fff; color: #000; }
.microcopy { margin: 16px 0 0; font-size: 14px; color: rgba(255,255,255,.68); }
.microcopy span { color: var(--red); font-weight: 700; }

.product-band { position: relative; z-index: 3; background: var(--red); color: #fff; }
.product-band-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.product-band p { margin: 0; font-weight: 700; text-transform: uppercase; letter-spacing: .03em; }
.product-band span { font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .22em; }
.offer-strip { padding: 28px 0; background: #000; color: #fff; }
.offer-grid { display: grid; grid-template-columns: 1fr 1fr auto auto; gap: 36px; align-items: center; }
.offer-grid div:not(.discount-badge) { display: grid; gap: 4px; }
.offer-grid span { color: #9b9b9b; font-size: 12px; text-transform: uppercase; letter-spacing: .08em; }
.offer-grid strong { font-size: 30px; line-height: 1; }
.old-price { color: #777; text-decoration: line-through; }
.discount-badge { min-width: 74px; aspect-ratio: 1; display: grid; place-items: center; border-radius: 50%; background: var(--red); font-size: 19px; font-weight: 700; }

.section { padding: 104px 0; }
.section-white { background: var(--white); }
.section h2, .feature h2, .premium-cta h2, .order-section h2 { max-width: 850px; margin: 0 0 28px; font-size: clamp(34px, 5vw, 62px); line-height: 1.02; letter-spacing: -.045em; text-transform: uppercase; }
.benefit-grid { margin-top: 58px; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid #d8d8d8; }
.benefit-grid article { padding: 28px 24px 10px 0; border-right: 1px solid #d8d8d8; }
.benefit-grid article + article { padding-left: 24px; }
.benefit-grid article:last-child { border-right: 0; }
.benefit-grid article > span, .order-steps article > span { color: var(--red); font-weight: 700; font-size: 13px; }
.benefit-grid h3, .order-steps h3 { margin: 18px 0 10px; font-size: 21px; line-height: 1.2; }
.benefit-grid p, .order-steps p { margin: 0; color: #666; line-height: 1.6; }

.feature { position: relative; background: #0b0b0b; color: #fff; }
.feature-media { position: relative; height: min(72vw, 690px); overflow: hidden; }
.feature-media img { width: 100%; height: 100%; object-fit: cover; }
.comparison-labels { position: absolute; inset: auto 0 0; padding: 16px max(20px, calc((100vw - 1180px)/2)); display: flex; justify-content: space-between; background: linear-gradient(0deg, rgba(0,0,0,.75), transparent); font-weight: 700; text-transform: uppercase; letter-spacing: .1em; }
.feature-copy { padding-block: 70px 90px; }
.feature-copy p:not(.section-kicker) { max-width: 820px; margin: 0; color: #bdbdbd; font-size: 19px; line-height: 1.7; }
.feature-copy .note { margin-top: 24px !important; padding-left: 18px; border-left: 3px solid var(--red); color: #868686 !important; font-size: 14px !important; }

.split-section { background: var(--paper); }
.split-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 70px; align-items: center; }
.split-copy > p:not(.section-kicker) { color: #535353; font-size: 18px; line-height: 1.7; }
.product-card { position: relative; padding: 20px; background: #fff; box-shadow: var(--shadow); }
.product-card::after { position: absolute; right: -14px; bottom: -14px; width: 52%; height: 52%; z-index: -1; background: var(--red); content: ""; }
.check-list { margin: 30px 0; padding: 0; list-style: none; display: grid; gap: 13px; }
.check-list li { position: relative; padding-left: 30px; font-weight: 600; }
.check-list li::before { position: absolute; left: 0; color: var(--red); content: "✓"; }
.text-link { display: inline-flex; gap: 10px; color: var(--red); text-transform: uppercase; text-decoration: none; font-weight: 700; letter-spacing: .05em; }
.hydrophobic .feature-copy { background: #0b0b0b; }

.section-head { margin-bottom: 50px; display: grid; grid-template-columns: 1.2fr .8fr; gap: 60px; align-items: end; }
.section-head h2 { margin-bottom: 0; }
.section-head > p { margin: 0 0 6px; color: #666; font-size: 17px; line-height: 1.7; }
.wide-image { width: 100%; aspect-ratio: 3/1.55; object-fit: cover; box-shadow: var(--shadow); }
.steps { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); list-style: none; }
.steps li { min-height: 140px; padding: 28px 22px; display: grid; align-content: start; gap: 18px; border-right: 1px solid #ddd; }
.steps li:last-child { border-right: 0; }
.steps span { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: var(--red); font-weight: 700; }

.premium-cta { position: relative; min-height: 590px; display: grid; align-items: center; overflow: hidden; color: #fff; background: #080808; }
.premium-cta > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.premium-cta::after { position: absolute; inset: 0; background: linear-gradient(90deg, transparent 25%, rgba(0,0,0,.2) 52%, rgba(0,0,0,.96) 82%); content: ""; }
.premium-copy { position: relative; z-index: 2; padding-left: min(50%, 600px); }
.premium-copy h2 { font-size: clamp(34px, 4.5vw, 60px); }

.order-process { background: #0c0c0c; color: #fff; }
.order-steps { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 50px; }
.order-steps article { min-height: 190px; padding: 28px; border: 1px solid #333; border-right: 0; }
.order-steps article:last-child { border-right: 1px solid #333; }
.order-steps p { color: #999; }

.order-section { padding: 105px 0; background: var(--red); color: #fff; }
.order-layout { display: grid; grid-template-columns: 1fr 480px; gap: 80px; align-items: center; }
.order-section .section-kicker { color: #fff; opacity: .7; }
.price-line { margin: 34px 0 22px; display: flex; flex-wrap: wrap; align-items: center; gap: 18px; }
.price-line span { color: rgba(255,255,255,.6); text-decoration: line-through; font-size: 24px; }
.price-line strong { font-size: 48px; line-height: 1; }
.price-line b { padding: 7px 10px; background: #fff; color: var(--red); }
.order-summary > p:not(.section-kicker) { color: rgba(255,255,255,.75); }
.assurances { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 18px; font-weight: 600; }
.order-form { padding: 38px; display: grid; background: #fff; color: #111; box-shadow: 0 30px 80px rgba(0,0,0,.26); }
.order-form label { margin: 14px 0 8px; font-size: 14px; font-weight: 600; }
.order-form label:first-child { margin-top: 0; }
.order-form input, .order-form select { width: 100%; min-height: 56px; padding: 0 15px; border: 1px solid #c9c9c9; border-radius: 2px; background: #fff; color: #111; outline: none; }
.order-form input:focus, .order-form select:focus { border-color: var(--red); box-shadow: 0 0 0 3px rgba(217,35,46,.14); }
.form-total { margin: 22px 0; padding: 16px 0; display: flex; justify-content: space-between; gap: 20px; border-block: 1px solid #ddd; }
.form-total strong { color: var(--red); font-size: 22px; }
.button-submit { width: 100%; }
.form-note { margin: 14px 0 0; color: #777; text-align: center; font-size: 13px; line-height: 1.5; }

.legal { padding-block: 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 30px; }
.legal details { padding: 16px 0; border-bottom: 1px solid #ddd; }
.legal summary { cursor: pointer; font-weight: 700; }
.legal p { color: #666; line-height: 1.6; }
.site-footer { padding: 42px 0 90px; background: #050505; color: #fff; }
.footer-inner { display: grid; grid-template-columns: auto 1fr auto; gap: 18px 35px; align-items: center; }
.footer-inner p, .footer-inner span { margin: 0; color: #777; font-size: 13px; }
.footer-inner a:not(.brand) { color: #aaa; font-size: 13px; }
.sticky-order { display: none; }

@media (max-width: 900px) {
    .desktop-nav { display: none; }
    .menu-button { display: flex; }
    .hero-shade { background: linear-gradient(0deg, rgba(0,0,0,.94) 0%, rgba(0,0,0,.54) 55%, rgba(0,0,0,.05) 100%); }
    .offer-grid { grid-template-columns: 1fr 1fr auto; gap: 20px; }
    .offer-grid .button { grid-column: 1/-1; }
    .benefit-grid, .steps, .order-steps { grid-template-columns: 1fr 1fr; }
    .benefit-grid article:nth-child(2) { border-right: 0; }
    .benefit-grid article:nth-child(n+3) { border-top: 1px solid #d8d8d8; }
    .split-grid, .section-head { grid-template-columns: 1fr; }
    .section-head { gap: 12px; }
    .order-layout { grid-template-columns: 1fr; gap: 50px; }
    .order-form { max-width: 620px; width: 100%; }
    .premium-copy { padding-left: 46%; }
}

@media (max-width: 600px) {
    .shell { width: min(100% - 32px, 1180px); }
    .site-header { min-height: 64px; padding: 10px 16px; background: #000; }
    .brand { font-size: 29px; }
    .menu-button span { font-size: 12px; }
    .mobile-menu { top: 64px; }
    .hero { min-height: 760px; padding-top: 64px; }
    .hero-image { height: 58%; object-position: center 64%; }
    .hero-shade { background: linear-gradient(0deg, #090909 0%, #090909 48%, rgba(9,9,9,.1) 72%); }
    .hero-content { padding: 390px 0 46px; }
    h1 { font-size: clamp(36px, 11vw, 48px); line-height: .98; }
    .hero-copy { margin: 20px 0 24px; font-size: 16px; line-height: 1.52; }
    .button { width: 100%; min-height: 56px; padding-inline: 18px; }
    .microcopy { text-align: center; }
    .product-band-inner { min-height: 82px; display: grid; gap: 4px; align-content: center; }
    .product-band p { font-size: 15px; }
    .product-band span { font-size: 10px; }
    .offer-strip { padding: 22px 0; }
    .offer-grid { grid-template-columns: 1fr 1fr; gap: 18px 10px; }
    .offer-grid strong { font-size: 25px; }
    .discount-badge { position: absolute; right: 16px; min-width: 58px; font-size: 15px; transform: translateY(-96px); }
    .offer-grid .button { grid-column: 1/-1; }
    .section { padding: 74px 0; }
    .section h2, .feature h2, .premium-cta h2, .order-section h2 { margin-bottom: 22px; font-size: clamp(32px, 10vw, 44px); }
    .benefit-grid { margin-top: 38px; grid-template-columns: 1fr; }
    .benefit-grid article, .benefit-grid article + article { padding: 24px 0; border-right: 0; border-top: 1px solid #d8d8d8; }
    .feature-media { height: 74vw; min-height: 280px; }
    .feature-copy { padding-block: 50px 62px; }
    .feature-copy p:not(.section-kicker) { font-size: 16px; }
    .split-grid { gap: 42px; }
    .split-copy { order: 2; }
    .product-card { order: 1; padding: 8px; }
    .wide-image { aspect-ratio: 4/3; }
    .steps { grid-template-columns: 1fr; margin-top: 10px; }
    .steps li { min-height: 0; padding: 19px 0; display: flex; align-items: center; border-right: 0; border-bottom: 1px solid #ddd; }
    .premium-cta { min-height: 680px; align-items: end; }
    .premium-cta > img { height: 58%; top: 0; object-position: 28% center; }
    .premium-cta::after { background: linear-gradient(0deg, #090909 0%, #090909 46%, transparent 76%); }
    .premium-copy { padding: 410px 0 54px; }
    .order-steps { grid-template-columns: 1fr; }
    .order-steps article { min-height: 0; padding: 24px 0; border: 0; border-bottom: 1px solid #333; }
    .order-steps article:last-child { border-right: 0; }
    .order-section { padding: 74px 0; }
    .order-layout { gap: 36px; }
    .price-line strong { font-size: 40px; }
    .order-form { padding: 24px 18px; }
    .legal { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr; }
    .sticky-order { position: fixed; z-index: 50; left: 12px; right: 12px; bottom: calc(10px + env(safe-area-inset-bottom)); min-height: 52px; display: flex; align-items: center; justify-content: center; border-radius: 4px; color: #fff; background: var(--red); text-decoration: none; text-transform: uppercase; font-weight: 700; box-shadow: 0 14px 36px rgba(0,0,0,.36); transition: opacity .2s, transform .2s; }
    .sticky-order.is-hidden { opacity: 0; pointer-events: none; transform: translateY(130%); }
}

@media (max-width: 360px) {
    .shell { width: calc(100% - 28px); }
    h1 { font-size: 35px; }
    .hero-content { padding-top: 370px; }
    .order-form { margin-inline: -2px; width: calc(100% + 4px); }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}