:root {
  --blue: #2b3be0;
  --blue-dark: #1f2cb8;
  --navy: #141b3b;
  --ink: #2c3352;
  --muted: #5d6583;
  --line: #e1e5f3;
  --panel: #f3f5fd;
  --panel-2: #e9ecfb;
  --lime: #d9ff47;
  --green: #1a9a5a;
  --red: #d63b3b;
  --white: #fff;
  --radius: 18px;
  --radius-sm: 12px;
  --max: 1240px;
  --font: "DM Sans", -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img, video { max-width: 100%; height: auto; display: block; }
[hidden] { display: none !important; }
a { color: var(--blue); }
h1, h2, h3 { color: var(--navy); font-weight: 700; letter-spacing: -0.02em; line-height: 1.05; margin: 0 0 16px; }
h1 { font-size: clamp(44px, 7vw, 84px); font-weight: 800; letter-spacing: -0.035em; }
h1 span { color: var(--blue); }
h2 { font-size: clamp(32px, 4.5vw, 52px); }
p { margin: 0 0 12px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.center { text-align: center; }
.green { color: var(--green); font-weight: 600; }
main > section { max-width: var(--max); margin: 0 auto; padding: 72px 24px; }
.hero > *, .product > *, .how-grid > *, .know-grid > *, .order-wrap > *, .gift > *, .video-grid > *, .gallery > * { min-width: 0; }
.section-head { margin-bottom: 32px; }
.section-head p { font-size: 18px; }

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: inherit; font-weight: 600; font-size: 16px;
  padding: 16px 28px; border-radius: 999px; border: 1.5px solid transparent;
  text-decoration: none; cursor: pointer; transition: background .15s, transform .1s, border-color .15s;
  position: relative;
}
.btn-primary { background: var(--blue); color: var(--white); }
.btn-primary:hover { background: var(--blue-dark); }
.btn-primary:active { transform: translateY(1px); }
.btn-outline { background: var(--white); color: var(--navy); border-color: var(--line); }
.btn-outline:hover { border-color: var(--navy); }
.btn-block { width: 100%; padding: 18px; font-size: 17px; }
.btn:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, summary:focus-visible {
  outline: 3px solid rgba(43,59,224,.35); outline-offset: 2px;
}
.btn[disabled] { opacity: .75; cursor: wait; }
.btn-spinner { display: none; width: 18px; height: 18px; border: 2.5px solid rgba(255,255,255,.4); border-top-color: #fff; border-radius: 50%; animation: spin .7s linear infinite; }
.btn.is-loading .btn-spinner { display: inline-block; }
.btn.is-loading .btn-text { opacity: .7; }
@keyframes spin { to { transform: rotate(360deg); } }

/* top bar + header */
.topbar { background: var(--blue); color: #fff; text-align: center; font-size: 14px; font-weight: 500; padding: 8px 16px; }
.topbar span { color: var(--lime); }
.site-header {
  position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.92); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  max-width: var(--max); margin: 0 auto; padding: 18px 24px;
}
.logo { font-size: 30px; font-weight: 800; letter-spacing: -0.04em; color: var(--navy); text-decoration: none; display: inline-flex; align-items: flex-start; }
.logo em { font-style: normal; color: var(--blue); }
.logo i { width: 6px; height: 6px; background: var(--blue); border-radius: 50%; margin: 8px 0 0 2px; }
.nav { display: flex; gap: 32px; }
.nav a { color: var(--ink); text-decoration: none; font-size: 17px; }
.nav a:hover { color: var(--blue); }

/* hero */
.hero { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; padding-top: 48px !important; }
.eyebrow { color: var(--blue); font-weight: 600; font-size: 14px; letter-spacing: .12em; text-transform: uppercase; display: flex; align-items: center; gap: 10px; margin-bottom: 28px; }
.lead { font-size: 20px; color: var(--ink); margin-bottom: 8px; }
.pills { list-style: none; padding: 0; margin: 28px 0; display: flex; flex-wrap: wrap; gap: 10px; }
.pills li { border: 1.5px solid var(--line); border-radius: 999px; padding: 9px 16px; font-size: 15px; font-weight: 500; }
.hero-price { display: flex; align-items: baseline; flex-wrap: wrap; gap: 6px 14px; margin-bottom: 24px; }
.old { text-decoration: line-through; color: var(--muted); font-size: 18px; }
.badge { background: var(--lime); color: var(--navy); font-weight: 700; font-size: 13px; padding: 4px 10px; border-radius: 999px; letter-spacing: .02em; }
.hero-price .new { font-size: 40px; font-weight: 800; color: var(--navy); letter-spacing: -0.03em; width: 100%; line-height: 1.1; }
.hero-price .ship { color: var(--green); font-weight: 600; font-size: 15px; width: 100%; }
.hero-price .bulk { width: 100%; font-size: 15px; font-weight: 600; color: var(--navy); background: var(--panel-2); border-radius: 10px; padding: 8px 12px; margin-top: 6px; }
.hero-actions { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.play-link { display: inline-flex; align-items: center; gap: 12px; color: var(--navy); font-weight: 600; text-decoration: none; }
.play-icon { width: 40px; height: 40px; border-radius: 50%; border: 1.5px solid var(--line); background: #fff; position: relative; }
.play-icon::after { content: ""; position: absolute; left: 16px; top: 13px; border-left: 11px solid var(--navy); border-top: 7px solid transparent; border-bottom: 7px solid transparent; }
.hero-visual { background: var(--panel); border-radius: 28px; padding: 36px; position: relative; }
.panel-label { color: var(--muted); font-size: 12px; letter-spacing: .18em; text-transform: uppercase; font-weight: 600; margin: 0 0 8px; }
.panel-label.bottom { position: absolute; left: 32px; bottom: 24px; margin: 0; }
.gallery-main:has(video:not([hidden])) .panel-label { display: none; }
.hero-visual img { margin: 0 auto; width: min(100%, 520px); }
.sticker {
  position: absolute; right: 24px; bottom: 16px; width: 130px; height: 130px; border-radius: 50%;
  background: var(--lime); color: var(--navy); display: flex; align-items: center; justify-content: center; text-align: center;
  font-weight: 700; font-size: 17px; line-height: 1.15; transform: rotate(-12deg);
}

/* product */
.product { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.gallery-main { background: var(--white); border: 1.5px solid var(--line); border-radius: 24px; padding: 32px; position: relative; aspect-ratio: 1; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.gallery-main img, .gallery-main video { max-height: 100%; object-fit: contain; border-radius: 12px; }
.thumbs { display: flex; gap: 10px; margin-top: 14px; overflow-x: auto; padding-bottom: 6px; scrollbar-width: thin; }
.thumb { flex: 0 0 82px; height: 82px; border-radius: 12px; border: 2px solid var(--line); padding: 0; background: #fff; cursor: pointer; overflow: hidden; position: relative; }
.thumb img { width: 100%; height: 100%; object-fit: cover; }
.thumb.is-active { border-color: var(--blue); }
.thumb-play { position: absolute; inset: 0; margin: auto; width: 30px; height: 30px; border-radius: 50%; background: rgba(20,27,59,.75); }
.thumb-play::after { content: ""; position: absolute; left: 12px; top: 9px; border-left: 9px solid #fff; border-top: 6px solid transparent; border-bottom: 6px solid transparent; }
.gallery-note { color: var(--muted); font-size: 14px; margin-top: 10px; }
.product-name { font-weight: 700; color: var(--navy); font-size: 19px; }
.checks { list-style: none; padding: 0; margin: 20px 0 28px; }
.checks li { padding: 6px 0 6px 30px; position: relative; }
.checks li::before { content: "\2713"; position: absolute; left: 0; color: var(--blue); font-weight: 700; }
.price-box { border-top: 1.5px solid var(--line); padding-top: 24px; margin-bottom: 20px; }
.price-row { display: flex; align-items: center; gap: 12px; margin-bottom: 4px; }
.price-now { font-size: 44px; font-weight: 800; color: var(--navy); letter-spacing: -0.03em; line-height: 1.1; }
.price-now small { font-size: 16px; font-weight: 500; color: var(--muted); letter-spacing: 0; }
.ship-line { color: var(--green); font-weight: 600; margin-top: 8px; }
.bulk-offer { background: var(--panel-2); border-radius: 10px; padding: 10px 14px; margin-top: 10px; font-size: 15px; }
.bulk-offer strong { color: var(--navy); }
.bulk-note { font-size: 14px; color: var(--muted); margin: -6px 0 16px; }
.bulk-note.is-on { color: var(--green); font-weight: 600; }
.qty-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin: 18px 0; }
.qty-label { font-weight: 600; color: var(--navy); margin: 0; }
.qty { display: inline-flex; border: 1.5px solid var(--line); border-radius: 12px; overflow: hidden; }
.qty button { width: 48px; height: 52px; border: 0; background: #fff; font-size: 22px; cursor: pointer; color: var(--navy); }
.qty button:hover { background: var(--panel); }
.qty input { width: 56px; border: 0; text-align: center; font: inherit; font-size: 18px; font-weight: 600; color: var(--navy); -moz-appearance: textfield; }
.qty input::-webkit-inner-spin-button, .qty input::-webkit-outer-spin-button { -webkit-appearance: none; }
.total-line { font-size: 18px; margin-bottom: 18px; }
.total-line strong { color: var(--navy); font-size: 22px; }
.headsup { margin-top: 24px; border-top: 1.5px solid var(--line); padding-top: 16px; }
.headsup summary { cursor: pointer; font-weight: 600; color: var(--navy); }
.headsup p { margin-top: 10px; color: var(--muted); font-size: 15px; }

/* video */
.action { background: var(--panel); border-radius: 32px; }
.video-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.video-grid video { width: 100%; border-radius: 20px; background: #000; aspect-ratio: 1; object-fit: cover; }

/* how */
.how-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.how-grid img { border-radius: 24px; border: 1.5px solid var(--line); }
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 20px; }
.steps li { display: flex; gap: 18px; align-items: flex-start; }
.steps span { flex: 0 0 44px; height: 44px; border-radius: 50%; background: var(--blue); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 18px; }
.steps strong { display: block; color: var(--navy); font-size: 20px; margin-bottom: 4px; }
.steps p { margin: 0; color: var(--muted); }
.photo-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 48px; }
.photo-strip img { border-radius: 20px; aspect-ratio: 1; object-fit: cover; width: 100%; }

/* know */
.know-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; }
.specs { margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 24px 32px; }
.specs div { border-top: 1.5px solid var(--line); padding-top: 14px; }
.specs dt { font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.specs dd { margin: 0; color: var(--muted); }
.know-grid img { border-radius: 24px; }

/* order */
.order { background: var(--panel); border-radius: 32px; }
.order-wrap { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: start; }
.order-form-col { background: #fff; border-radius: 24px; padding: 36px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 600; color: var(--navy); margin-bottom: 8px; }
.optional { font-weight: 400; color: var(--muted); }
.field input, .field textarea { width: 100%; font: inherit; font-size: 17px; padding: 14px 16px; border: 1.5px solid var(--line); border-radius: 12px; color: var(--navy); background: #fff; }
.field input:focus, .field textarea:focus { border-color: var(--blue); outline: none; box-shadow: 0 0 0 3px rgba(43,59,224,.15); }
.field.has-error input, .field.has-error textarea { border-color: var(--red); }
.hint { display: block; color: var(--muted); font-size: 14px; margin-top: 6px; }
.error { display: none; color: var(--red); font-size: 14px; margin-top: 6px; }
.field.has-error .error { display: block; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-error { background: #fdecec; color: #8f1f1f; border-radius: 12px; padding: 12px 16px; margin-top: 14px; font-size: 15px; }
.summary { background: #fff; border-radius: 24px; padding: 28px; position: sticky; top: 96px; }
.summary-product { display: flex; gap: 14px; align-items: center; margin-bottom: 18px; }
.summary-product img { width: 72px; height: 72px; border-radius: 12px; background: var(--panel); object-fit: contain; }
.summary-product strong { display: block; color: var(--navy); }
.summary-lines { margin: 0 0 14px; }
.summary-lines div { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-top: 1.5px solid var(--line); }
.summary-lines dt { color: var(--muted); }
.summary-lines dd { margin: 0; font-weight: 600; color: var(--navy); text-align: right; }
.summary-lines dd s { font-weight: 400; font-size: 14px; margin-left: 6px; }
.summary-lines .total { border-top: 2px solid var(--navy); margin-top: 4px; }
.summary-lines .total dd { font-size: 24px; font-weight: 800; }
.success { background: #fff; border-radius: 24px; padding: 48px 36px; max-width: 620px; margin: 0 auto; text-align: center; }
.success .summary-lines { text-align: left; margin: 20px 0; }
.success-check { width: 72px; height: 72px; border-radius: 50%; background: var(--green); color: #fff; font-size: 36px; font-weight: 700; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; }

/* gift */
.gift { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.gift img { border-radius: 24px; }
.gift p { font-size: 18px; margin-bottom: 24px; }

/* footer */
.site-footer { max-width: var(--max); margin: 0 auto; padding: 40px 24px 120px; border-top: 1.5px solid var(--line); text-align: center; }
.site-footer .logo { font-size: 24px; margin-bottom: 12px; }

/* sticky bar (mobile) */
.sticky-bar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 30; background: #fff; border-top: 1.5px solid var(--line); padding: 10px 16px; display: none; align-items: center; justify-content: space-between; gap: 12px; box-shadow: 0 -8px 24px rgba(20,27,59,.08); }
.sticky-bar strong { color: var(--navy); font-size: 20px; margin: 0 4px; }
.sticky-bar .btn { padding: 12px 22px; }
.sticky-bar.is-visible { display: flex; }

/* responsive */
@media (max-width: 960px) {
  .hero, .product, .how-grid, .know-grid, .order-wrap, .gift, .video-grid { grid-template-columns: 1fr; }
  .hero { gap: 32px; }
  .hero-visual { order: -1; padding: 24px; }
  .hero-visual img { width: min(100%, 360px); }
  .sticker { width: 100px; height: 100px; font-size: 14px; right: 12px; bottom: 12px; }
  .summary { position: static; }
  main > section { padding: 48px 20px; }
  .photo-strip { grid-template-columns: 1fr; }
  .specs { grid-template-columns: 1fr; }
  .site-header .btn { display: none; }
  .nav { gap: 18px; }
  .nav a { font-size: 15px; }
  .logo { font-size: 26px; }
}
@media (max-width: 520px) {
  .order-form-col { padding: 24px 18px; }
  .qty-row { flex-direction: column; align-items: flex-start; }
  .hero-actions { gap: 16px; }
  .btn-primary { width: 100%; }
  .sticky-bar .btn { width: auto; }
}

/* pack selector */
.packs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 18px 0 8px; }
.pack { position: relative; font: inherit; text-align: left; background: #fff; border: 2px solid var(--line); border-radius: 14px; padding: 14px 12px 12px; cursor: pointer; display: flex; flex-direction: column; gap: 2px; min-height: 92px; transition: border-color .15s; }
.pack:hover { border-color: var(--navy); }
.pack.is-active { border-color: var(--blue); background: var(--panel); box-shadow: 0 0 0 3px rgba(43,59,224,.12); }
.pack-name { font-weight: 600; color: var(--navy); }
.pack-price { font-size: 20px; font-weight: 800; color: var(--navy); letter-spacing: -0.02em; }
.pack-sub { font-size: 12px; color: var(--muted); line-height: 1.3; }
.pack-best .pack-sub { color: var(--green); font-weight: 600; }
.pack-tag { position: absolute; top: -11px; left: 10px; background: var(--lime); color: var(--navy); font-size: 11px; font-weight: 700; padding: 3px 8px; border-radius: 999px; letter-spacing: .02em; }
.bulk-note { margin: 2px 0 0; }

/* why */
.why-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px 40px; margin-bottom: 40px; }
.why-item { border-top: 2px solid var(--blue); padding-top: 14px; }
.why-item strong { display: block; color: var(--navy); font-size: 19px; margin-bottom: 6px; }
.why-item p { margin: 0; color: var(--muted); }
.action-cta { margin-top: 28px; }

/* faq */
.faq-list { max-width: 760px; }
.faq-list details { border-top: 1.5px solid var(--line); }
.faq-list details:last-child { border-bottom: 1.5px solid var(--line); }
.faq-list summary { cursor: pointer; font-weight: 600; color: var(--navy); font-size: 18px; padding: 18px 32px 18px 0; list-style: none; position: relative; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 4px; top: 14px; font-size: 24px; color: var(--blue); font-weight: 400; }
.faq-list details[open] summary::after { content: "\2212"; }
.faq-list p { margin: 0 0 18px; color: var(--muted); max-width: 640px; }

/* trust list in summary */
.trust { list-style: none; padding: 0; margin: 4px 0 0; }
.trust li { font-size: 14px; color: var(--muted); padding: 5px 0 5px 24px; position: relative; }
.trust li::before { content: "\2713"; position: absolute; left: 0; color: var(--green); font-weight: 700; }

/* reviews (used once you uncomment the section) */
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.review-grid blockquote { margin: 0; background: var(--panel); border-radius: 18px; padding: 24px; }
.review-grid p { color: var(--navy); font-size: 17px; }
.review-grid cite { font-style: normal; color: var(--muted); font-size: 14px; }

@media (max-width: 960px) {
  .why-grid, .review-grid { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .packs { grid-template-columns: 1fr; gap: 14px; }
  .pack { min-height: 0; flex-direction: row; align-items: center; justify-content: space-between; flex-wrap: wrap; }
  .pack-sub { width: 100%; }
}