:root {
  --navy: #07111f;
  --navy-2: #0b1a2b;
  --navy-3: #10273b;
  --cyan: #35d1dc;
  --cyan-bright: #44e5f0;
  --mist: #eef7f8;
  --white: #ffffff;
  --ink: #0b1723;
  --muted: #5d6b78;
  --line: #dbe5e8;
  --page: #f5f8f9;
  --radius-lg: 30px;
  --radius-md: 20px;
  --shadow: 0 30px 80px rgba(3, 18, 31, 0.13);
  --product-stage: radial-gradient(circle at 50% 43%, #17485b 0%, #0d2b3e 40%, #07111f 78%);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--page); font-family: "Inter", Arial, sans-serif; font-size: 16px; line-height: 1.6; overflow-x: hidden; }
h1, h2, h3 { font-family: "Manrope", Arial, sans-serif; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
svg { width: 1.1em; height: 1.1em; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.skip-link { position: fixed; top: -100px; left: 1rem; z-index: 1000; padding: .75rem 1rem; background: #fff; color: #000; }
.skip-link:focus { top: 1rem; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 100; height: 82px; display: flex; align-items: center; justify-content: space-between; padding: 0 clamp(1.2rem, 5vw, 5.5rem); color: #fff; border-bottom: 1px solid rgba(255,255,255,.11); transition: background .3s, backdrop-filter .3s, height .3s; }
.site-header.scrolled { height: 70px; background: rgba(7,17,31,.9); backdrop-filter: blur(18px); }
.brand { display: inline-flex; align-items: center; line-height: 1; }
.brand img { display: block; width: 178px; height: auto; }
.main-nav { display: flex; align-items: center; gap: clamp(1.2rem, 2.8vw, 2.8rem); font-size: .84rem; font-weight: 600; letter-spacing: .02em; }
.main-nav a { color: rgba(255,255,255,.74); transition: color .2s; }
.main-nav a:hover { color: #fff; }
.main-nav .nav-cta { padding: .68rem 1.05rem; border: 1px solid rgba(255,255,255,.25); border-radius: 999px; color: #fff; }
.language-switcher { display: inline-flex; align-items: center; gap: .5rem; padding: .42rem .65rem; border: 1px solid rgba(255,255,255,.17); border-radius: 999px; }
.language-switcher a { color: rgba(255,255,255,.52); font-size: .72rem; line-height: 1; }
.language-switcher a.active { color: var(--cyan); }
.language-switcher span { width: 1px; height: 12px; background: rgba(255,255,255,.2); }
.menu-button { display: none; border: 0; background: transparent; color: #fff; padding: .6rem; }
.menu-button span { display: block; width: 24px; height: 2px; background: currentColor; margin: 6px 0; }

.hero { min-height: 100svh; position: relative; display: grid; grid-template-columns: minmax(0, .9fr) minmax(360px, 1.1fr); align-items: center; background: var(--navy); color: #fff; padding: 8.5rem clamp(1.2rem, 6vw, 7rem) 5rem; overflow: hidden; isolation: isolate; }
.hero-grid { position: absolute; inset: 0; z-index: -3; opacity: .22; background-image: linear-gradient(rgba(100,160,190,.13) 1px, transparent 1px), linear-gradient(90deg, rgba(100,160,190,.13) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(to right, black, transparent 78%); }
.hero-glow { position: absolute; z-index: -2; width: 70vw; height: 70vw; right: -18vw; top: -6vw; border-radius: 50%; background: radial-gradient(circle, rgba(53,209,220,.22), rgba(14,67,93,.13) 35%, transparent 70%); }
.hero::after { content: ""; position: absolute; z-index: -1; right: 0; bottom: 0; width: 60%; height: 35%; background: linear-gradient(145deg, transparent 40%, rgba(53,209,220,.08)); clip-path: polygon(24% 100%, 100% 0, 100% 100%); }
.hero-copy { position: relative; z-index: 2; max-width: 710px; }
.kicker { margin: 0 0 1.5rem; display: flex; align-items: center; gap: .75rem; color: #b8c6cf; font-size: .76rem; font-weight: 700; letter-spacing: .15em; text-transform: uppercase; }
.kicker span { width: 30px; height: 1px; background: var(--cyan); }
.kicker.dark { color: #56707e; }
.hero h1 { margin: 0; font-size: clamp(3.15rem, 6.4vw, 7.4rem); line-height: .91; letter-spacing: -.065em; font-weight: 700; }
.hero h1 em { color: var(--cyan); font-family: "Manrope", Arial, sans-serif; font-style: normal; font-weight: 300; }
.hero-copy > p:not(.kicker) { max-width: 600px; margin: 2rem 0 0; color: #aebac3; font-size: clamp(1rem, 1.25vw, 1.2rem); line-height: 1.8; }
.hero-actions, .product-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2.2rem; }
.button { min-height: 52px; display: inline-flex; align-items: center; justify-content: center; gap: .65rem; padding: .82rem 1.35rem; border: 1px solid transparent; border-radius: 999px; font-size: .86rem; font-weight: 700; transition: transform .2s, background .2s, border-color .2s; }
.button:hover { transform: translateY(-2px); }
.button.primary { background: var(--cyan); color: #05212a; }
.button.primary:hover { background: var(--cyan-bright); }
.button.ghost { color: #fff; border-color: rgba(255,255,255,.24); background: rgba(255,255,255,.04); }
.button.light { background: #fff; color: var(--navy); }
.button.dark { background: var(--navy); color: #fff; }
.button svg, .text-link svg { transition: transform .2s; }
.button:hover svg, .text-link:hover svg { transform: translateX(3px); }
.hero-proof { display: flex; align-items: center; gap: .8rem; margin-top: 2.6rem; color: #788b98; font-size: .74rem; font-weight: 600; }
.hero-proof i { width: 3px; height: 3px; background: var(--cyan); border-radius: 50%; }
.hero-product { position: relative; min-height: 590px; display: flex; align-items: center; justify-content: center; }
.hero-product::before { content: ""; position: absolute; width: 78%; aspect-ratio: 1; border: 1px solid rgba(53,209,220,.25); border-radius: 50%; box-shadow: 0 0 70px rgba(53,209,220,.06) inset; }
.hero-product::after { content: ""; position: absolute; left: 5%; right: 5%; bottom: 13%; height: 12%; border-radius: 50%; background: rgba(0,0,0,.65); filter: blur(28px); }
.hero-product img { position: relative; z-index: 2; width: min(860px, 120%); max-width: none; transform: translateX(2%) rotate(-2deg); filter: drop-shadow(0 25px 35px rgba(0,0,0,.45)); }
.blue-tip-callout { position: absolute; z-index: 3; left: 5%; bottom: 25%; display: flex; gap: .55rem; align-items: center; font-size: .72rem; text-transform: uppercase; letter-spacing: .12em; color: #c6d8e2; }
.blue-tip-callout span { width: 36px; height: 1px; background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }
.hero-model { position: absolute; right: 3%; bottom: 6%; text-align: right; z-index: 3; }
.hero-model span { display: block; color: #6d8491; font-size: .68rem; text-transform: uppercase; letter-spacing: .18em; }
.hero-model strong { display: block; font-family: "Manrope", Arial, sans-serif; color: #fff; font-size: 2.5rem; font-style: normal; font-weight: 300; letter-spacing: -.055em; line-height: 1; }
.scroll-cue { position: absolute; left: clamp(1.2rem, 6vw, 7rem); bottom: 1.4rem; display: flex; gap: .8rem; align-items: center; color: #6f8390; font-size: .68rem; text-transform: uppercase; letter-spacing: .15em; }
.scroll-cue b { width: 44px; height: 1px; background: #335063; }

.section { padding: clamp(5rem, 9vw, 9rem) clamp(1.2rem, 6vw, 7rem); }
.section-heading { display: grid; grid-template-columns: 1fr minmax(280px, .65fr); gap: 4rem; align-items: end; margin-bottom: 3.6rem; }
.section-heading h2, .compare-intro h2 { margin: 0; font-size: clamp(2.5rem, 5vw, 5.7rem); line-height: .98; letter-spacing: -.055em; }
.section-heading > p, .compare-intro > p:last-child { margin: 0; color: var(--muted); font-size: 1.04rem; max-width: 560px; }
.products-section { background: #fff; }
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.product-card { border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: #fff; transition: transform .3s, box-shadow .3s; }
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.product-card-image { position: relative; display: block; aspect-ratio: 1.3; overflow: hidden; background: var(--product-stage); }
.product-card-image::after { content: ""; position: absolute; left: 13%; right: 13%; bottom: 8%; height: 10%; border-radius: 50%; background: rgba(0,0,0,.38); filter: blur(18px); }
.product-card-image img { position: relative; z-index: 1; width: 100%; height: 100%; object-fit: contain; padding: clamp(.8rem, 2vw, 1.8rem); filter: drop-shadow(0 18px 18px rgba(0,0,0,.32)); transition: transform .55s; }
.product-card:hover .product-card-image img { transform: scale(1.035); }
.product-card.featured { border-color: rgba(53,209,220,.7); box-shadow: 0 20px 65px rgba(21,135,151,.11); }
.product-card.featured .product-card-image { background: var(--product-stage); }
.favourite-badge { position: absolute; top: 1rem; left: 1rem; padding: .45rem .75rem; background: var(--cyan); color: #06232a; border-radius: 999px; font-size: .66rem; font-weight: 800; text-transform: uppercase; letter-spacing: .09em; }
.product-card-copy { padding: 1.55rem; }
.product-card-copy p { margin: 0 0 .35rem; color: #77909a; font-size: .68rem; text-transform: uppercase; letter-spacing: .13em; font-weight: 700; }
.product-card-copy h3 { margin: 0; font-family: "Manrope", Arial, sans-serif; font-size: 2.15rem; font-style: normal; font-weight: 400; letter-spacing: -.045em; line-height: 1; }
.product-card-copy > span { display: block; min-height: 3.2em; margin: 1rem 0 1.2rem; color: var(--muted); font-size: .9rem; }
.text-link { display: inline-flex; align-items: center; gap: .55rem; color: #14394b; font-size: .8rem; font-weight: 800; }

.statement-section { position: relative; overflow: hidden; padding: clamp(5rem, 9vw, 9rem) clamp(1.2rem, 6vw, 7rem); background: var(--navy); color: #fff; text-align: center; }
.statement-glow { position: absolute; width: 700px; height: 700px; left: calc(50% - 350px); top: -350px; background: radial-gradient(circle, rgba(53,209,220,.18), transparent 65%); }
.statement-section .kicker { justify-content: center; }
.statement-section h2 { position: relative; margin: 0; font-size: clamp(2.7rem, 6vw, 6.8rem); line-height: .96; letter-spacing: -.055em; }
.statement-section h2 em { color: var(--cyan); font-family: "Manrope", Arial, sans-serif; font-style: normal; font-weight: 300; }
.statement-stats { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); max-width: 1000px; margin: 4.5rem auto 0; border-top: 1px solid rgba(255,255,255,.13); }
.statement-stats div { padding: 2rem 1rem 0; border-right: 1px solid rgba(255,255,255,.13); }
.statement-stats div:last-child { border-right: 0; }
.statement-stats strong { display: block; color: #fff; font-size: clamp(2rem, 3vw, 3.2rem); }
.statement-stats span { color: #8294a0; font-size: .75rem; }

.features-section { background: var(--page); }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.feature-card { overflow: hidden; border-radius: var(--radius-md); background: #fff; border: 1px solid var(--line); }
.feature-card img { width: 100%; aspect-ratio: 1.35; object-fit: cover; background: #f8fafc; }
.feature-card div { padding: 1.3rem 1.4rem 1.5rem; }
.feature-card h3 { margin: 0 0 .35rem; font-size: 1rem; }
.feature-card p { margin: 0; color: var(--muted); font-size: .82rem; }

.videos-section { background: #fff; }
.videos-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.video-card { appearance: none; overflow: hidden; padding: 0; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; color: var(--ink); cursor: pointer; text-align: left; transition: transform .3s, box-shadow .3s, border-color .3s; }
.video-card:hover { transform: translateY(-5px); border-color: rgba(53,209,220,.7); box-shadow: var(--shadow); }
.video-card:focus-visible { outline: 3px solid var(--cyan); outline-offset: 4px; }
.video-thumbnail { position: relative; display: block; aspect-ratio: 16 / 9; overflow: hidden; background: var(--navy); }
.video-thumbnail::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(7,17,31,.32), transparent 62%); }
.video-thumbnail img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s; }
.video-card:hover .video-thumbnail img { transform: scale(1.035); }
.video-play { position: absolute; z-index: 2; left: 50%; top: 50%; width: 64px; height: 64px; display: grid; place-items: center; transform: translate(-50%, -50%); border-radius: 50%; background: var(--cyan); color: #05212a; box-shadow: 0 15px 40px rgba(0,0,0,.3); transition: transform .25s, background .25s; }
.video-card:hover .video-play { transform: translate(-50%, -50%) scale(1.08); background: var(--cyan-bright); }
.video-play svg { width: 28px; height: 28px; fill: currentColor; stroke-width: 1.2; }
.video-card-copy { display: flex; flex-direction: column; min-height: 210px; padding: 1.5rem; }
.video-card-copy strong { font-family: "Manrope", Arial, sans-serif; font-size: 1.45rem; line-height: 1.15; letter-spacing: -.03em; }
.video-card-copy > span { margin-top: .75rem; color: var(--muted); font-size: .84rem; }
.video-card-copy b { display: inline-flex; align-items: center; gap: .5rem; margin-top: auto; padding-top: 1.1rem; color: #14394b; font-size: .78rem; }

.video-dialog { width: min(1040px, calc(100% - 2rem)); max-width: none; padding: 0; border: 0; border-radius: 22px; background: transparent; color: #fff; overflow: visible; }
.video-dialog::backdrop { background: rgba(3,10,18,.88); backdrop-filter: blur(10px); }
.video-dialog-shell { overflow: hidden; border: 1px solid rgba(255,255,255,.12); border-radius: 22px; background: var(--navy); box-shadow: 0 35px 100px rgba(0,0,0,.55); }
.video-dialog-bar { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .9rem 1rem .9rem 1.3rem; }
.video-dialog-bar strong { font-family: "Manrope", Arial, sans-serif; font-size: 1rem; }
.video-dialog-close { width: 42px; height: 42px; flex: 0 0 auto; border: 1px solid rgba(255,255,255,.17); border-radius: 50%; background: rgba(255,255,255,.06); color: #fff; cursor: pointer; font-size: 1.6rem; line-height: 1; }
.video-dialog-close:hover { background: rgba(255,255,255,.13); }
.video-frame-wrap { aspect-ratio: 16 / 9; background: #000; }
.video-frame-wrap iframe { width: 100%; height: 100%; display: block; border: 0; }
body:has(.video-dialog[open]) { overflow: hidden; }

.compare-section { display: grid; grid-template-columns: minmax(250px, .6fr) minmax(600px, 1.4fr); gap: clamp(3rem, 7vw, 8rem); background: #fff; }
.compare-intro { align-self: start; position: sticky; top: 120px; }
.compare-intro > p:last-child { margin-top: 1.5rem; }
.comparison-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-lg); }
.comparison-wrap table { width: 100%; min-width: 720px; border-collapse: collapse; background: #fff; }
.comparison-wrap th, .comparison-wrap td { padding: 1.2rem 1.3rem; text-align: left; border-bottom: 1px solid var(--line); font-size: .84rem; }
.comparison-wrap thead th { height: 110px; background: var(--navy); color: #fff; vertical-align: bottom; }
.comparison-wrap thead th:first-child { color: #76909e; font-size: .68rem; text-transform: uppercase; letter-spacing: .1em; }
.comparison-wrap thead b { display: block; font-family: "Manrope", Arial, sans-serif; font-size: 1.45rem; font-style: normal; font-weight: 500; letter-spacing: -.035em; }
.comparison-wrap thead th:nth-child(2) { background: #0b3342; color: var(--cyan); }
.comparison-wrap thead small { display: block; font-size: .55rem; text-transform: uppercase; letter-spacing: .1em; }
.comparison-wrap tbody th { color: #6c7a84; font-weight: 600; }
.comparison-wrap tbody td:nth-child(2) { background: rgba(53,209,220,.07); color: #0d4656; font-weight: 700; }
.comparison-wrap tr:last-child th, .comparison-wrap tr:last-child td { border-bottom: 0; }

.lenses-section { display: grid; grid-template-columns: 1.1fr .9fr; min-height: 620px; background: #0b1723; color: #fff; }
.lenses-image { min-height: 540px; display: flex; align-items: center; justify-content: center; overflow: hidden; background: var(--product-stage); }
.lenses-image img { width: 100%; height: 100%; object-fit: contain; padding: clamp(1.5rem, 4vw, 4rem); filter: drop-shadow(0 25px 28px rgba(0,0,0,.35)); }
.lenses-copy { display: flex; flex-direction: column; align-items: flex-start; justify-content: center; padding: clamp(3rem, 7vw, 7rem); background: linear-gradient(145deg, #0c1b29, #07111f); }
.lenses-copy h2 { margin: 0; font-size: clamp(2.7rem, 5vw, 5.6rem); line-height: .98; letter-spacing: -.055em; }
.lenses-copy > p:not(.kicker) { color: #96a7b1; max-width: 560px; margin: 1.7rem 0; }

.contact-cta { display: grid; grid-template-columns: 1fr .75fr; gap: 5rem; align-items: center; padding: clamp(5rem, 9vw, 8rem) clamp(1.2rem, 8vw, 10rem); background: var(--cyan); }
.contact-cta h2 { margin: 0; font-size: clamp(2.6rem, 5.5vw, 6rem); line-height: .94; letter-spacing: -.06em; }
.contact-cta > div:last-child > p { max-width: 560px; margin: 0 0 1.5rem; color: #16424c; }
.contact-email { display: block; margin-top: 1rem; font-size: .83rem; font-weight: 700; text-decoration: underline; text-underline-offset: 4px; }

.site-footer { padding: 4rem clamp(1.2rem, 6vw, 7rem) 1.5rem; background: var(--navy); color: #fff; }
.footer-main { display: grid; grid-template-columns: 1.3fr 1fr .7fr; gap: 4rem; padding-bottom: 3rem; }
.brand-footer img { width: 208px; }
.footer-main p { color: #758995; font-size: .82rem; }
.footer-contact, .footer-links { display: flex; flex-direction: column; align-items: flex-start; gap: .55rem; }
.footer-contact span { color: #758995; font-size: .7rem; text-transform: uppercase; letter-spacing: .1em; }
.footer-contact a { color: var(--cyan); font-weight: 700; }
.footer-links a { color: #b9c3c9; font-size: .8rem; }
.footer-bottom { display: flex; justify-content: space-between; gap: 2rem; padding-top: 1.3rem; border-top: 1px solid rgba(255,255,255,.1); color: #607682; font-size: .68rem; }

.whatsapp-button { position: fixed; right: 1.25rem; bottom: 1.25rem; z-index: 90; min-width: 56px; height: 56px; display: flex; align-items: center; justify-content: center; gap: .6rem; padding: 0 1rem; border-radius: 999px; background: #20c869; color: #fff; box-shadow: 0 14px 35px rgba(5,62,34,.3); font-size: .78rem; font-weight: 800; transition: transform .2s; }
.whatsapp-button:hover { transform: translateY(-3px); }
.whatsapp-button svg { width: 25px; height: 25px; fill: currentColor; stroke: none; }
.toast { position: fixed; left: 50%; bottom: 1.5rem; z-index: 120; transform: translate(-50%, 130%); padding: .8rem 1rem; border-radius: 999px; background: #fff; box-shadow: var(--shadow); font-size: .8rem; transition: transform .3s; }
.toast.show { transform: translate(-50%, 0); }

/* Product detail route */
.product-hero { position: relative; min-height: 100svh; display: grid; grid-template-columns: .85fr 1.15fr; align-items: center; padding: 9rem clamp(1.2rem, 6vw, 7rem) 8rem; background: var(--navy); color: #fff; overflow: hidden; }
.product-hero::before { content: ""; position: absolute; width: 62vw; height: 62vw; right: -12vw; top: -8vw; border-radius: 50%; background: radial-gradient(circle, color-mix(in srgb, var(--product-accent) 20%, transparent), transparent 68%); }
.product-hero-copy { position: relative; z-index: 2; }
.back-link { display: inline-block; margin-bottom: 2.5rem; color: #7d909c; font-size: .75rem; }
.product-hero h1 { margin: 0; color: var(--product-accent); font-family: "Manrope", Arial, sans-serif; font-size: clamp(4.7rem, 9vw, 10rem); font-style: normal; font-weight: 300; line-height: .76; letter-spacing: -.065em; }
.product-hero h2 { margin: 2.2rem 0 0; max-width: 680px; font-size: clamp(1.8rem, 3vw, 3.4rem); line-height: 1.05; letter-spacing: -.04em; }
.product-lead { max-width: 660px; color: #9bacb6; margin: 1.4rem 0 0; }
.product-hero-visual { position: relative; min-height: 580px; display: flex; align-items: center; justify-content: center; }
.product-orbit { position: absolute; width: min(600px, 80%); aspect-ratio: 1; border: 1px solid color-mix(in srgb, var(--product-accent) 30%, transparent); border-radius: 50%; }
.product-orbit::before, .product-orbit::after { content: ""; position: absolute; inset: 10%; border: 1px dashed rgba(255,255,255,.1); border-radius: 50%; }
.product-orbit::after { inset: 26%; }
.product-hero-visual img { position: relative; z-index: 2; width: min(900px, 112%); max-width: none; filter: drop-shadow(0 30px 30px rgba(0,0,0,.42)); }
.product-hero-visual img[src$=".webp"] { border-radius: 22px; box-shadow: var(--shadow); }
.product-metrics { position: absolute; left: clamp(1.2rem, 6vw, 7rem); right: clamp(1.2rem, 6vw, 7rem); bottom: 1.5rem; display: grid; grid-template-columns: repeat(4, 1fr); z-index: 3; border-top: 1px solid rgba(255,255,255,.13); }
.product-metrics div { padding: 1.3rem 1.2rem 0; border-right: 1px solid rgba(255,255,255,.13); }
.product-metrics div:first-child { padding-left: 0; }
.product-metrics div:last-child { border-right: 0; }
.product-metrics span { display: block; color: #708692; font-size: .65rem; text-transform: uppercase; letter-spacing: .1em; }
.product-metrics strong { color: #fff; font-size: 1.1rem; }
.product-overview { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(3rem, 7vw, 7rem); align-items: center; background: #fff; }
.product-cover { overflow: hidden; border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.product-cover img { width: 100%; }
.product-cover.transparent-cover { min-height: 560px; display: flex; align-items: center; justify-content: center; background: var(--product-stage); }
.product-cover.transparent-cover img { width: 100%; max-width: none; padding: clamp(1.2rem, 3vw, 3rem); filter: drop-shadow(0 30px 32px rgba(0,0,0,.42)); }
.product-highlights h2 { margin: 0 0 2rem; font-size: clamp(2.5rem, 4.7vw, 5rem); line-height: .98; letter-spacing: -.055em; }
.product-highlights ul { list-style: none; padding: 0; margin: 0; }
.product-highlights li { display: flex; align-items: center; gap: .85rem; padding: 1rem 0; border-bottom: 1px solid var(--line); font-weight: 700; }
.product-highlights li svg { width: 24px; height: 24px; color: #1ca9b6; }
.spec-section { display: grid; grid-template-columns: .7fr 1.3fr; gap: 5rem; padding: clamp(5rem, 9vw, 9rem) clamp(1.2rem, 8vw, 10rem); background: var(--navy); color: #fff; }
.spec-heading { position: sticky; top: 120px; align-self: start; }
.spec-heading h2 { margin: 0; font-size: clamp(2.7rem, 4.7vw, 5.2rem); line-height: .98; letter-spacing: -.05em; }
.spec-section dl { margin: 0; }
.spec-section dl div { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; padding: 1.25rem 0; border-bottom: 1px solid rgba(255,255,255,.13); }
.spec-section dt { color: #768b97; font-size: .8rem; }
.spec-section dd { margin: 0; font-weight: 700; text-align: right; }
.spec-note { grid-column: 2; margin: -3rem 0 0; color: #607682; font-size: .68rem; }
.detail-features { background: var(--page); }
.features-grid.compact { grid-template-columns: repeat(4, 1fr); }
.more-products { padding: clamp(5rem, 8vw, 8rem) clamp(1.2rem, 6vw, 7rem); background: var(--navy); }
.light-heading h2 { color: #fff; }
.compact-products .product-card-copy > span { min-height: 0; }

.reveal { opacity: 0; transform: translateY(20px); transition: opacity .75s ease, transform .75s ease; }
.reveal.delay-1 { transition-delay: .12s; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1080px) {
  .hero { grid-template-columns: 1fr; padding-top: 9rem; }
  .hero-product { min-height: 480px; }
  .hero-product img { width: min(820px, 110%); }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .product-card:last-child { grid-column: span 2; }
  .feature-card { grid-column: auto; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .compare-section { grid-template-columns: 1fr; }
  .compare-intro { position: static; }
  .product-hero { grid-template-columns: 1fr; padding-bottom: 11rem; }
  .product-hero-visual { min-height: 480px; }
  .product-overview { grid-template-columns: 1fr; }
  .features-grid.compact { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  .site-header { height: 68px; padding-inline: 1rem; }
  .menu-button { display: block; }
  .main-nav { position: absolute; left: 0; right: 0; top: 68px; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: .5rem 1rem 1rem; background: rgba(7,17,31,.98); border-bottom: 1px solid rgba(255,255,255,.1); }
  .main-nav.open { display: flex; }
  .main-nav a { padding: .9rem .5rem; }
  .main-nav .nav-cta { margin-top: .4rem; text-align: center; }
  .language-switcher { align-self: flex-start; margin: .65rem .5rem; padding: .62rem .8rem; }
  .language-switcher a { padding: 0; }
  .brand img { width: 148px; }
  .brand-footer img { width: 185px; }
  .hero { min-height: auto; grid-template-columns: 1fr; padding: 7.8rem 1.2rem 4rem; }
  .hero h1 { font-size: clamp(3.25rem, 15vw, 5.3rem); }
  .hero-proof { flex-wrap: wrap; }
  .hero-product { min-height: 360px; }
  .hero-product img { width: 115%; transform: translateX(4%) rotate(-2deg); }
  .blue-tip-callout { left: 0; bottom: 19%; }
  .hero-model { right: 0; bottom: 2%; }
  .scroll-cue { display: none; }
  .section-heading { grid-template-columns: 1fr; gap: 1.4rem; margin-bottom: 2.4rem; }
  .products-grid { grid-template-columns: 1fr; }
  .product-card:last-child { grid-column: auto; }
  .statement-stats { grid-template-columns: 1fr; }
  .statement-stats div { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.13); padding: 1.3rem 0; }
  .features-grid, .features-grid.compact { grid-template-columns: 1fr; }
  .videos-grid { grid-template-columns: 1fr; }
  .video-card-copy { min-height: 0; }
  .video-dialog { width: calc(100% - 1rem); }
  .video-dialog-bar { min-height: 58px; }
  .compare-section { padding-inline: 1rem; }
  .lenses-section { grid-template-columns: 1fr; }
  .lenses-image { min-height: 300px; }
  .contact-cta { grid-template-columns: 1fr; gap: 2rem; }
  .footer-main { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; gap: .5rem; }
  .whatsapp-button span { display: none; }
  .whatsapp-button { width: 56px; padding: 0; }
  .product-hero { padding: 7.5rem 1.2rem 12.5rem; }
  .product-hero h1 { font-size: clamp(4.3rem, 22vw, 7rem); }
  .product-hero-visual { min-height: 340px; }
  .product-hero-visual img { width: 115%; }
  .product-metrics { grid-template-columns: repeat(2, 1fr); left: 1.2rem; right: 1.2rem; }
  .product-metrics div { padding: .8rem .5rem; border-bottom: 1px solid rgba(255,255,255,.13); }
  .product-metrics div:nth-child(2) { border-right: 0; }
  .product-overview { padding-inline: 1rem; }
  .spec-section { grid-template-columns: 1fr; gap: 2.5rem; padding-inline: 1.2rem; }
  .spec-heading { position: static; }
  .spec-section dl div { grid-template-columns: 1fr; gap: .2rem; }
  .spec-section dd { text-align: left; }
  .spec-note { grid-column: 1; margin: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}