:root {
  --ink: #14244e;
  --ink-soft: #52607f;
  --paper: #fffaf3;
  --cream: #f7ecdf;
  --white: #ffffff;
  --pink: #ee397c;
  --orange: #ff7b22;
  --yellow: #f5c31a;
  --blue: #1786df;
  --green: #2dad71;
  --purple: #7739bb;
  --gold: #e5a916;
  --line: rgba(20,36,78,.12);
  --shadow: 0 24px 70px rgba(42,37,77,.12);
  --radius: 28px;
  --max: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 10%, rgba(255,172,109,.16), transparent 25rem),
    radial-gradient(circle at 92% 24%, rgba(93,183,255,.12), transparent 28rem),
    var(--paper);
  font-family: "Segoe UI", "Trebuchet MS", system-ui, -apple-system, sans-serif;
  line-height: 1.55;
  overflow-x: hidden;
}
body.modal-open { overflow: hidden; }
img { max-width: 100%; display: block; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
button { color: inherit; }

::selection { background: rgba(238,57,124,.18); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 999; transform: translateY(-150%); padding: 10px 16px; background: var(--ink); color: white; border-radius: 10px; }
.skip-link:focus { transform: none; }
.site-progress { position: fixed; inset: 0 0 auto 0; z-index: 100; height: 3px; background: transparent; }
.site-progress span { display: block; width: 0; height: 100%; background: linear-gradient(90deg,var(--orange),var(--pink),var(--blue),var(--green)); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  width: min(calc(100% - 28px), var(--max));
  margin: 14px auto 0;
  min-height: 70px;
  padding: 9px 12px 9px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border: 1px solid rgba(255,255,255,.8);
  border-radius: 22px;
  background: rgba(255,250,243,.82);
  box-shadow: 0 12px 36px rgba(41,35,70,.08);
  backdrop-filter: blur(18px);
}
.brand { display: flex; align-items: center; gap: 11px; min-width: max-content; }
.brand img { width: 48px; height: 48px; border-radius: 50%; box-shadow: 0 5px 14px rgba(31,63,122,.14); }
.brand span { display: flex; flex-direction: column; line-height: 1.15; }
.brand strong { font-size: 1rem; }
.brand small { margin-top: 4px; color: var(--ink-soft); font-size: .72rem; letter-spacing: .04em; }
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a { padding: 10px 12px; border-radius: 12px; color: #3d4a6d; font-weight: 700; font-size: .9rem; transition: .25s ease; }
.main-nav a:hover, .main-nav a:focus-visible { color: var(--ink); background: rgba(255,255,255,.9); transform: translateY(-1px); }
.menu-button { display: none; width: 45px; height: 45px; border: 0; border-radius: 14px; background: white; cursor: pointer; place-content: center; gap: 5px; box-shadow: 0 5px 18px rgba(20,36,78,.09); }
.menu-button span { width: 21px; height: 2px; background: var(--ink); border-radius: 2px; transition: .25s; }

.hero {
  position: relative;
  width: min(calc(100% - 28px), var(--max));
  min-height: 690px;
  margin: 18px auto 0;
  padding: clamp(46px, 6vw, 84px);
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  align-items: center;
  gap: 52px;
  overflow: hidden;
  border-radius: 38px;
  background:
    linear-gradient(120deg, rgba(255,255,255,.94), rgba(255,248,237,.82)),
    radial-gradient(circle at 70% 10%, rgba(255,209,52,.15), transparent 25rem);
  border: 1px solid rgba(255,255,255,.9);
  box-shadow: var(--shadow);
}
#heroCanvas { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; opacity: .78; }
.hero-glow { position: absolute; width: 370px; height: 370px; border-radius: 50%; filter: blur(30px); opacity: .22; pointer-events: none; }
.hero-glow-one { left: -120px; bottom: -130px; background: radial-gradient(circle,var(--pink),transparent 68%); }
.hero-glow-two { right: -120px; top: -100px; background: radial-gradient(circle,var(--blue),transparent 68%); }
.hero-copy, .hero-visual { position: relative; z-index: 2; }
.eyebrow { margin: 0 0 14px; color: var(--purple); font-size: .78rem; font-weight: 900; letter-spacing: .16em; text-transform: uppercase; }
.eyebrow span { color: var(--gold); }
.hero h1, .section-heading h2, .about-copy h2, .contact-card h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
  letter-spacing: -.045em;
  line-height: .98;
}
.hero h1 { max-width: 630px; font-size: clamp(3.2rem, 6vw, 5.8rem); }
.hero h1 em { font-style: italic; color: transparent; background: linear-gradient(90deg,var(--orange),var(--pink),var(--purple),var(--blue)); background-clip: text; -webkit-background-clip: text; }
.hero-text { max-width: 570px; margin: 24px 0 0; color: var(--ink-soft); font-size: 1.06rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button { min-height: 48px; padding: 13px 20px; display: inline-flex; align-items: center; justify-content: center; border: 0; border-radius: 15px; font-weight: 850; cursor: pointer; transition: transform .22s ease, box-shadow .22s ease, background .22s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: white; background: linear-gradient(135deg,var(--pink),var(--purple)); box-shadow: 0 12px 28px rgba(147,46,146,.24); }
.button-primary:hover { box-shadow: 0 16px 36px rgba(147,46,146,.32); }
.button-ghost { color: var(--ink); background: rgba(255,255,255,.8); box-shadow: inset 0 0 0 1px var(--line); }
.button-soft { width: 100%; margin-top: 12px; background: #edf4ff; color: #1b5e9b; }
.button-white { background: white; color: var(--ink); box-shadow: 0 14px 30px rgba(23,40,90,.18); }
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px; margin: 28px 0 0; padding: 0; list-style: none; }
.hero-badges li { padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.66); color: #465477; font-size: .78rem; font-weight: 700; }
.hero-image-wrap { transform: rotate(1.5deg); border: 10px solid white; border-radius: 30px; overflow: hidden; box-shadow: 0 24px 54px rgba(30,43,88,.18); }
.hero-image-wrap img { width: 100%; min-height: 330px; object-fit: cover; }
.floating-note { position: absolute; display: flex; align-items: center; gap: 8px; padding: 12px 15px; border-radius: 14px; background: rgba(255,255,255,.92); box-shadow: 0 14px 35px rgba(35,45,84,.16); font-size: .8rem; font-weight: 800; animation: float 4s ease-in-out infinite; }
.note-one { left: -28px; top: 15%; }
.note-two { right: -18px; bottom: 9%; animation-delay: -1.4s; }
@keyframes float { 50% { transform: translateY(-8px) rotate(.5deg); } }

.marquee { margin: 24px 0 0; overflow: hidden; border-block: 1px solid var(--line); background: rgba(255,255,255,.45); }
.marquee-track { width: max-content; display: flex; gap: 26px; align-items: center; padding: 13px 0; animation: marquee 26s linear infinite; }
.marquee span { color: #53607d; font-size: .82rem; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.marquee i { color: var(--gold); font-style: normal; }
@keyframes marquee { to { transform: translateX(-50%); } }

.section { width: min(calc(100% - 28px), var(--max)); margin: 0 auto; padding: 108px 0 0; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 50px; margin-bottom: 34px; }
.section-heading > div { max-width: 710px; }
.section-heading h2, .about-copy h2, .contact-card h2 { font-size: clamp(2.4rem,4vw,4.3rem); }
.section-heading > p { max-width: 450px; margin: 0; color: var(--ink-soft); }
.section-heading.compact { margin-bottom: 28px; }

.product-tools { display: flex; justify-content: space-between; gap: 20px; margin-bottom: 24px; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.filter { padding: 10px 15px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.72); color: #5a6683; font-weight: 800; cursor: pointer; transition: .2s; }
.filter:hover, .filter.is-active { color: white; border-color: transparent; background: var(--ink); }
.search-box { min-width: min(330px,100%); height: 45px; padding: 0 14px; display: flex; align-items: center; gap: 9px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.8); }
.search-box svg { width: 18px; fill: none; stroke: var(--ink-soft); stroke-width: 2; stroke-linecap: round; }
.search-box input { width: 100%; border: 0; outline: 0; background: transparent; color: var(--ink); }
.product-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.product-card { min-width: 0; overflow: hidden; border: 1px solid rgba(255,255,255,.9); border-radius: 26px; background: rgba(255,255,255,.73); box-shadow: 0 17px 45px rgba(35,35,72,.08); transition: transform .3s ease, box-shadow .3s ease; }
.product-card:hover { transform: translateY(-7px); box-shadow: 0 26px 60px rgba(35,35,72,.15); }
.product-image { position: relative; aspect-ratio: 4/4.55; overflow: hidden; background: #f3eee7; }
.product-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.product-card:hover .product-image img { transform: scale(1.035); }
.product-badge { position: absolute; top: 14px; left: 14px; padding: 7px 10px; border-radius: 999px; background: rgba(255,255,255,.9); color: var(--purple); box-shadow: 0 8px 22px rgba(25,38,74,.12); font-size: .7rem; font-weight: 900; text-transform: uppercase; letter-spacing: .08em; }
.product-body { padding: 21px; }
.product-category { color: var(--pink); font-size: .72rem; font-weight: 900; text-transform: uppercase; letter-spacing: .12em; }
.product-body h3 { margin: 7px 0 8px; font-family: Georgia,serif; font-size: 1.45rem; line-height: 1.1; }
.product-body p { min-height: 48px; margin: 0; color: var(--ink-soft); font-size: .9rem; }
.product-footer { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-top: 18px; }
.product-meta { color: #6c7896; font-size: .75rem; font-weight: 800; }
.details-button { padding: 10px 14px; border: 0; border-radius: 12px; background: #eef3ff; color: #345caa; font-weight: 850; cursor: pointer; }
.empty-state { padding: 48px; text-align: center; border: 1px dashed var(--line); border-radius: 22px; color: var(--ink-soft); }

.experience-panel { padding: clamp(28px,5vw,62px); border-radius: 34px; color: white; background:
 linear-gradient(130deg,rgba(21,37,82,.97),rgba(72,37,120,.94)),
 radial-gradient(circle at 100% 0%,rgba(0,166,255,.4),transparent 40%);
 box-shadow: var(--shadow); }
.experience-panel .eyebrow { color: #ffd461; }
.steps { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.step { position: relative; min-height: 265px; padding: 26px; overflow: hidden; border: 1px solid rgba(255,255,255,.12); border-radius: 24px; background: rgba(255,255,255,.07); }
.step-number { position: absolute; right: 16px; top: 4px; color: rgba(255,255,255,.08); font-family: Georgia,serif; font-size: 5rem; font-weight: 800; }
.step-icon { width: 52px; height: 52px; display: grid; place-items: center; border-radius: 16px; background: rgba(255,255,255,.1); font-size: 1.5rem; }
.step h3 { margin: 42px 0 10px; font-family: Georgia,serif; font-size: 1.45rem; }
.step p { margin: 0; color: rgba(255,255,255,.7); }

.lab-grid { display: grid; grid-template-columns: .85fr 1.25fr .9fr; gap: 20px; align-items: stretch; }
.lab-card { padding: 26px; border: 1px solid rgba(255,255,255,.92); border-radius: 28px; background: rgba(255,255,255,.74); box-shadow: 0 17px 45px rgba(40,35,75,.09); }
.lab-card-head { margin-bottom: 18px; }
.lab-card h3 { margin: 4px 0 0; font-family: Georgia,serif; font-size: 1.65rem; }
.lab-kicker { color: var(--pink); font-size: .72rem; font-weight: 900; text-transform: uppercase; letter-spacing: .14em; }
.color-mixer > p { color: var(--ink-soft); }
.mix-picker { display: flex; gap: 12px; }
.color-dot { width: 47px; height: 47px; border: 5px solid white; border-radius: 50%; box-shadow: 0 0 0 1px var(--line),0 8px 15px rgba(39,40,80,.1); cursor: pointer; transition: .2s; }
.color-dot:hover { transform: scale(1.08); }
.color-dot.is-selected { box-shadow: 0 0 0 3px var(--ink),0 8px 15px rgba(39,40,80,.16); }
.color-dot.red { background: #ef3d43; }
.color-dot.blue { background: #176ed0; }
.color-dot.yellow { background: #f6c91e; }
.mix-plus { display: block; margin: 8px 0; padding-left: 61px; color: var(--ink-soft); font-size: 1.4rem; font-weight: 700; }
.mix-result { display: flex; align-items: center; gap: 14px; margin-top: 22px; padding: 14px; border-radius: 18px; background: #f6f3fb; }
.mix-result > span { width: 58px; height: 58px; border: 7px solid white; border-radius: 17px; background: #7e3db2; box-shadow: 0 8px 18px rgba(62,35,100,.2); transition: .3s; }
.mix-result div { display: flex; flex-direction: column; }
.mix-result small { color: var(--ink-soft); }
.mix-result strong { font-size: 1.2rem; }
.mix-tip { min-height: 68px; margin-bottom: 0; font-size: .86rem; }
.drawing-card { display: flex; flex-direction: column; }
.drawing-head { display: flex; justify-content: space-between; align-items: flex-start; }
.icon-button { width: 40px; height: 40px; border: 0; border-radius: 12px; background: #eef3ff; color: #3562ad; font-size: 1.3rem; cursor: pointer; }
.drawing-toolbar { display: flex; justify-content: space-between; gap: 15px; align-items: center; margin-bottom: 12px; }
.drawing-colors { display: flex; gap: 7px; }
.draw-color { width: 26px; height: 26px; padding: 0; border: 3px solid white; border-radius: 50%; background: var(--draw); box-shadow: 0 0 0 1px var(--line); cursor: pointer; }
.draw-color.is-selected { box-shadow: 0 0 0 2px var(--ink); }
.brush-control { display: flex; align-items: center; gap: 7px; color: var(--ink-soft); font-size: .75rem; font-weight: 800; }
.brush-control input { width: 82px; accent-color: var(--purple); }
.drawing-surface { position: relative; flex: 1; min-height: 290px; overflow: hidden; border: 1px dashed rgba(66,80,125,.25); border-radius: 20px; background:
 linear-gradient(rgba(31,61,110,.035) 1px,transparent 1px),
 linear-gradient(90deg,rgba(31,61,110,.035) 1px,transparent 1px),#fffdf9;
 background-size: 22px 22px; touch-action: none; }
#drawingCanvas { width: 100%; height: 100%; display: block; cursor: crosshair; touch-action: none; }
.canvas-hint { position: absolute; inset: 50% auto auto 50%; transform: translate(-50%,-50%); color: #a7aec0; font-weight: 800; pointer-events: none; }
.challenge-card { position: relative; overflow: hidden; color: white; background: linear-gradient(150deg,#ee3d79,#a038bd 58%,#346bd8); }
.challenge-card .lab-kicker { color: #ffe178; }
.challenge-card h3 { max-width: 240px; font-size: 2rem; }
.challenge-card blockquote { min-height: 145px; margin: 35px 0; padding: 0; font-family: Georgia,serif; font-size: 1.2rem; line-height: 1.45; }
.challenge-card .button { color: var(--purple); background: white; box-shadow: none; }
.challenge-spark { position: absolute; right: 24px; top: 16px; color: #ffd658; font-size: 4rem; opacity: .55; }

.tips-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 24px; }
.tips-list { display: flex; flex-direction: column; gap: 10px; }
.tip-tab { width: 100%; padding: 17px; display: grid; grid-template-columns: 44px 1fr; grid-template-rows: auto auto; text-align: left; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.58); cursor: pointer; transition: .23s; }
.tip-tab span { grid-row: 1/3; align-self: center; color: #9b70bd; font-family: Georgia,serif; font-size: 1.25rem; }
.tip-tab strong { font-size: .96rem; }
.tip-tab small { color: var(--ink-soft); }
.tip-tab:hover, .tip-tab.is-active { transform: translateX(5px); border-color: rgba(125,57,186,.2); background: white; box-shadow: 0 14px 32px rgba(47,40,82,.08); }
.tip-display { position: relative; min-height: 360px; padding: clamp(30px,5vw,62px); overflow: hidden; border-radius: 30px; color: white; background: linear-gradient(135deg,#132551,#293f7b); box-shadow: var(--shadow); }
.tip-display h3 { max-width: 620px; margin: 6px 0 18px; font-family: Georgia,serif; font-size: clamp(2rem,4vw,3.6rem); line-height: 1.05; }
.tip-display > p:not(.eyebrow) { max-width: 650px; color: rgba(255,255,255,.75); font-size: 1.05rem; }
.tip-display .eyebrow { color: #ffd05d; }
.tip-symbol { position: absolute; right: 35px; top: 5px; color: rgba(255,255,255,.08); font-size: 10rem; }
.tip-note { margin-top: 30px; padding: 14px 16px; border: 1px solid rgba(255,255,255,.14); border-radius: 14px; background: rgba(255,255,255,.07); color: rgba(255,255,255,.8); }

.about-card { padding: clamp(28px,5vw,62px); display: grid; grid-template-columns: .7fr 1.3fr; align-items: center; gap: clamp(30px,6vw,80px); overflow: hidden; border: 1px solid rgba(255,255,255,.9); border-radius: 34px; background: linear-gradient(135deg,rgba(255,255,255,.86),rgba(255,241,230,.68)); box-shadow: var(--shadow); }
.about-logo { position: relative; }
.about-logo::before { content: ""; position: absolute; inset: 8%; border-radius: 50%; background: conic-gradient(from 60deg,rgba(255,190,35,.28),rgba(238,57,124,.22),rgba(23,134,223,.22),rgba(45,173,113,.2),rgba(255,190,35,.28)); filter: blur(15px); }
.about-logo img { position: relative; width: min(100%,420px); margin: auto; border-radius: 50%; box-shadow: 0 20px 55px rgba(40,38,80,.13); }
.about-copy > p:not(.eyebrow) { max-width: 700px; color: var(--ink-soft); font-size: 1.05rem; }
.about-points { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 27px; }
.about-points span { padding: 10px 14px; border: 1px solid var(--line); border-radius: 999px; background: white; font-weight: 800; }
.about-points b { margin-right: 7px; color: var(--pink); }

.contact-section { padding-bottom: 80px; }
.contact-card { padding: clamp(34px,6vw,72px); display: flex; justify-content: space-between; align-items: center; gap: 40px; border-radius: 34px; color: white; background: linear-gradient(125deg,#ef3e7c,#9939bc 54%,#1c7bd2); box-shadow: 0 28px 70px rgba(119,49,166,.25); }
.contact-card .eyebrow { color: #ffe16b; }
.contact-card h2 { max-width: 800px; }
.contact-card p:not(.eyebrow) { max-width: 690px; color: rgba(255,255,255,.76); }
.contact-actions { min-width: 230px; display: flex; flex-direction: column; gap: 14px; align-items: center; }
.text-link { font-weight: 800; }
.text-link span { display: inline-block; transition: .2s; }
.text-link:hover span { transform: translateX(5px); }

.site-footer { width: min(calc(100% - 28px),var(--max)); margin: 0 auto; padding: 26px 0 38px; display: flex; align-items: center; justify-content: space-between; gap: 22px; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: .82rem; }
.footer-brand { display: flex; align-items: center; gap: 10px; color: var(--ink); }
.footer-brand img { width: 42px; height: 42px; border-radius: 50%; }
.footer-brand div { display: flex; flex-direction: column; }
.footer-brand small { color: var(--ink-soft); }

.product-modal { width: min(950px,calc(100% - 28px)); max-height: min(800px,calc(100vh - 28px)); padding: 0; border: 0; border-radius: 28px; overflow: auto; color: var(--ink); background: var(--paper); box-shadow: 0 40px 100px rgba(14,22,54,.35); }
.product-modal::backdrop { background: rgba(15,24,52,.66); backdrop-filter: blur(8px); }
.product-modal[open] { display: grid; grid-template-columns: 1fr 1fr; animation: modalIn .25s ease; }
@keyframes modalIn { from { opacity: 0; transform: translateY(14px) scale(.98); } }
.modal-close { position: absolute; top: 13px; right: 13px; z-index: 3; width: 42px; height: 42px; border: 0; border-radius: 50%; background: rgba(255,255,255,.9); font-size: 1.7rem; line-height: 1; cursor: pointer; box-shadow: 0 8px 24px rgba(20,35,75,.14); }
.modal-media { min-height: 570px; background: #f2ece5; }
.modal-media img { width: 100%; height: 100%; object-fit: cover; }
.modal-copy { padding: clamp(30px,5vw,58px); align-self: center; }
.modal-copy h2 { margin: 5px 0 16px; font-family: Georgia,serif; font-size: clamp(2.2rem,4vw,3.4rem); line-height: 1; }
.modal-copy > p:not(.eyebrow) { color: var(--ink-soft); }
.modal-includes { margin: 25px 0; padding: 18px; border-radius: 17px; background: white; box-shadow: inset 0 0 0 1px var(--line); }
.modal-includes ul { margin: 10px 0 0; padding-left: 20px; color: var(--ink-soft); }
.toast { position: fixed; left: 50%; bottom: 25px; z-index: 200; transform: translate(-50%,20px); padding: 12px 17px; border-radius: 999px; color: white; background: #17264f; box-shadow: 0 15px 35px rgba(20,30,65,.25); opacity: 0; pointer-events: none; transition: .25s; font-size: .86rem; font-weight: 750; }
.toast.is-visible { opacity: 1; transform: translate(-50%,0); }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .75s ease, transform .75s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1050px) {
  .hero { min-height: auto; grid-template-columns: 1fr; padding: 60px; }
  .hero-copy { max-width: 760px; }
  .hero-visual { max-width: 820px; }
  .product-grid { grid-template-columns: repeat(2,1fr); }
  .lab-grid { grid-template-columns: 1fr 1fr; }
  .challenge-card { grid-column: 1/-1; }
  .challenge-card blockquote { min-height: auto; }
}

@media (max-width: 820px) {
  .site-header { margin-top: 8px; }
  .menu-button { display: grid; }
  .main-nav { position: absolute; top: calc(100% + 8px); right: 0; left: 0; padding: 10px; display: none; flex-direction: column; align-items: stretch; border: 1px solid rgba(255,255,255,.9); border-radius: 18px; background: rgba(255,250,243,.98); box-shadow: 0 18px 40px rgba(35,35,70,.14); }
  .main-nav.is-open { display: flex; }
  .main-nav a { padding: 13px; }
  .menu-button[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-button[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .hero { padding: 45px 28px; gap: 36px; border-radius: 30px; }
  .hero h1 { font-size: clamp(3rem,13vw,5rem); }
  .floating-note { display: none; }
  .section { padding-top: 82px; }
  .section-heading { flex-direction: column; align-items: flex-start; gap: 16px; }
  .product-tools { flex-direction: column; }
  .search-box { width: 100%; }
  .steps { grid-template-columns: 1fr; }
  .step { min-height: auto; }
  .step h3 { margin-top: 28px; }
  .tips-layout { grid-template-columns: 1fr; }
  .tips-list { display: grid; grid-template-columns: 1fr 1fr; }
  .about-card { grid-template-columns: 1fr; }
  .about-logo img { max-width: 340px; }
  .contact-card { flex-direction: column; align-items: flex-start; }
  .contact-actions { align-items: flex-start; }
  .site-footer { flex-direction: column; align-items: flex-start; }
  .product-modal[open] { grid-template-columns: 1fr; }
  .modal-media { min-height: auto; aspect-ratio: 4/4.5; }
}

@media (max-width: 620px) {
  .brand small { display: none; }
  .site-header { width: calc(100% - 16px); border-radius: 18px; }
  .hero, .section, .site-footer { width: calc(100% - 20px); }
  .hero { margin-top: 10px; padding: 42px 20px 28px; border-radius: 25px; }
  .hero-image-wrap { border-width: 6px; border-radius: 22px; }
  .hero-image-wrap img { min-height: 230px; }
  .hero-actions .button { width: 100%; }
  .product-grid { grid-template-columns: 1fr; }
  .filters { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 5px; }
  .filter { white-space: nowrap; }
  .lab-grid { grid-template-columns: 1fr; }
  .challenge-card { grid-column: auto; }
  .drawing-toolbar { flex-direction: column; align-items: flex-start; }
  .drawing-colors { flex-wrap: wrap; }
  .tips-list { grid-template-columns: 1fr; }
  .tip-display { min-height: 410px; }
  .about-points { flex-direction: column; align-items: flex-start; }
  .contact-actions, .contact-actions .button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}