/*
 * Explorer One Website V2: design-system implementation (EO-WEB-DESIGN-V1, reconciled).
 * Light, electric blue and deep navy. Route-scoped: every rule lives under .eo2 (plus one
 * page-level font variable), so the shared Academy stylesheet, header, footer and other
 * pages are unaffected. Self-hosted font only; no external requests.
 *
 * Token layers (top of .eo2): palette scale > semantic roles (text, surface, brand, border,
 * focus) > elevation E0 to E4 > radius > spacing > type. Components use semantic roles only.
 * Deliberate departures from the spec, per later owner decisions: Google Sans Flex (not the
 * Segoe stack) and a white scroll-revealed header (set inline in the template).
 */

@font-face { font-family: "Google Sans Flex"; font-style: normal; font-weight: 300 800; font-stretch: 100%; font-display: swap; src: url("../fonts/google-sans-flex-latin-ext.woff2") format("woff2"); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Google Sans Flex"; font-style: normal; font-weight: 300 800; font-stretch: 100%; font-display: swap; src: url("../fonts/google-sans-flex-latin.woff2") format("woff2"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }

/* Size-matched fallback so the swap to Google Sans Flex does not reflow headings (measured ~2% wider than Segoe UI / Arial). */
@font-face { font-family: "Google Sans Flex Fallback"; src: local("Segoe UI"), local("Arial"), local("Helvetica Neue"); size-adjust: 102%; ascent-override: 96%; descent-override: 24%; line-gap-override: 0%; }

/* The shared header, footer and buttons read the theme's own font variable; point it at the same family on this page only. */
body.academy-explorer-one-page { --academy-font-sans: "Google Sans Flex", "Google Sans Flex Fallback", "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif; }

.eo2 {
  /* 1. Palette */
  --c-blue-50: #f1f4fe;
  --c-blue-100: #e3eafc;
  --c-blue-200: #bfcdf8;
  --c-blue-300: #8ba6f9;
  --c-blue-400: #4371f9;
  --c-blue: #0d44e8;
  --c-blue-600: #0b3bcb;
  --c-blue-700: #0930a4;
  --c-blue-800: #07257e;
  --c-blue-900: #0c205a;
  --c-navy: #08153a;
  --c-ink: #080c17;
  --c-ok: #22c55e;
  --c-warn: #f59e0b;
  --c-err: #ef4444;

  /* 2. Semantic roles */
  --text-primary: #0c1736;
  --text-body: #3b4666;
  --text-secondary: #4d5b78;
  --text-on-dark: #ffffff;
  --text-on-dark-body: #c6d2f3;
  --text-on-dark-muted: #a9bce5;
  --surface-canvas: #ffffff;
  --surface-cool: #f7f9fd;
  --surface-blue: var(--c-blue-50);
  --surface-blue-strong: var(--c-blue-100);
  --surface-card: #ffffff;
  --surface-navy: var(--c-navy);
  --surface-navy-raised: var(--c-blue-900);
  --surface-ink: var(--c-ink);
  --brand: var(--c-blue);
  --brand-hover: var(--c-blue-600);
  --brand-pressed: var(--c-blue-700);
  --brand-soft: var(--c-blue-100);
  --border-light: #dbe3f2;
  --border-dark: #31456b;
  --line-on-blue: rgba(255, 255, 255, 0.26);
  --focus: var(--c-blue);

  /* 3. Elevation: E0 flat, E1 quiet, E2 card, E3 product, E4 overlay. Neutral ink, low opacity. */
  --e0: none;
  --e1: 0 1px 3px rgb(8 21 58 / 0.05);
  --e2: 0 4px 16px rgb(8 21 58 / 0.07);
  --e3: 0 14px 36px rgb(8 21 58 / 0.11);
  --e4: 0 16px 44px rgb(8 21 58 / 0.14);
  /* Two-layer soft shadow (ambient + key) for the three flagship light surfaces (Step 2). */
  --e-soft: 0 1px 2px rgb(8 21 58 / 0.05), 0 12px 30px rgb(8 21 58 / 0.10);
  --e-dark: 0 8px 24px rgb(0 0 0 / 0.35);

  /* 4. Radius: 8 compact, 12 inputs and nested media, 16 ordinary cards, 20 featured surfaces, 24 largest. */
  --r-sm: 8px;
  --r-md: 12px;
  --r-card: 16px;
  --r-lg: 20px;
  --r-xl: 24px;

  /* 5. Spacing (4/8 base). Section padding varies on purpose: flagship > standard > compact. */
  /* Section rhythm — three deliberate tiers with clear gaps between them (Step 2). */
  --s-section-lg: clamp(5rem, 7vw, 7.5rem);    /* flagship: Quick Search, Quick View */
  --s-section: clamp(3.75rem, 5.5vw, 6rem);    /* standard */
  --s-section-sm: clamp(2.75rem, 4vw, 4.25rem); /* compact: technical/spec sections */
  --s-head: clamp(2rem, 3.5vw, 3rem);
  --s-col: clamp(2rem, 4vw, 4rem);
  --pad-card: 1.5rem;
  --pad-feature: clamp(1.5rem, 1.1rem + 1vw, 2rem);
  --gap: clamp(1rem, 0.6rem + 1vw, 1.5rem);
  --max: 1280px;
  --copy-max: 68ch;
  --gutter: clamp(20px, 3vw, 32px);

  /* 6. Type */
  --font: "Google Sans Flex", "Google Sans Flex Fallback", "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "Cascadia Mono", Consolas, "SFMono-Regular", Menlo, monospace;
  /* Type scale (Step 3): one body size (base 17); small (15) sits clearly below it, not
     competing; h2 lowered so the hero dominates; h2-sub is the secondary section-title tier. */
  --fs-xs: 0.875rem;    /* 14 — captions, chips, eyebrow */
  --fs-sm: 0.9375rem;   /* 15 — secondary/supporting text */
  --fs-base: 1.0625rem; /* 17 — body */
  --fs-lead: clamp(1.125rem, 1.05rem + 0.3vw, 1.25rem);
  --fs-h3: 1.25rem;
  --fs-h3-lg: clamp(1.375rem, 1.1rem + 0.9vw, 1.75rem);
  --fs-h2-sub: clamp(1.5rem, 1.15rem + 1.3vw, 2.25rem); /* secondary section titles */
  --fs-h2: clamp(1.875rem, 1.1rem + 2.3vw, 3.25rem);
  --fs-h1: clamp(2.5rem, 1.25rem + 4.35vw, 5rem);

  /* 7. Motion — one shared system. Micro states use --dur; larger moves (tab indicator,
     panel change) use --dur-move. One easing (exponential ease-out) throughout. */
  --dur-fast: 120ms;
  --dur: 170ms;
  --dur-move: 260ms;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  /* Authored icons (one 2px round stroke), applied as masks so they take any colour. */
  --i-arrow: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12h14M13 6l6 6-6 6'/%3E%3C/svg%3E");
  --i-plus: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E");
  --i-check: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E");

  display: block;
  background: var(--surface-canvas);
  color: var(--text-body);
  font-family: var(--font);
  font-size: var(--fs-base);
  line-height: 1.6;
  overflow-x: clip;
  color-scheme: light;
  accent-color: var(--brand);
  -webkit-font-smoothing: antialiased;
}

.eo2 *, .eo2 *::before, .eo2 *::after { box-sizing: border-box; }
.eo2 [hidden] { display: none !important; }
.eo2 section { position: relative; scroll-margin-top: 5rem; }
.eo2 :focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 6px; }
.eo2 a { color: var(--brand); text-underline-offset: 0.2em; }
.eo2 a:hover { color: var(--brand-pressed); }
.eo2 ::selection { background: rgba(67, 113, 249, 0.3); color: inherit; }
.eo2 :where(dd, li) { text-wrap: pretty; }
.eo2 :where(p) { margin: 0; text-wrap: pretty; max-width: var(--copy-max); }
.eo2-wrap { width: 100%; max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }
.eo2 section > .eo2-wrap { padding-block: var(--s-section); }

/* Coloured-surface sections share one focus colour. Quick Search, the Shelf and the Windows
   section are light surfaces now, so they keep the default blue ring. */
.eo2-final { --focus: var(--c-blue-300); }
.eo2-get { --focus: #fff; }
.eo2-get__panel { --focus: var(--c-blue); }

/* ---------- typography ---------- */
.eo2 h1, .eo2 h2, .eo2 h3 { margin: 0; color: var(--text-primary); font-family: var(--font); text-wrap: balance; }
.eo2 h1 { font-size: var(--fs-h1); font-weight: 720; line-height: 1.05; letter-spacing: -0.035em; }
.eo2 h2 { font-size: var(--fs-h2); font-weight: 700; line-height: 1.1; letter-spacing: -0.025em; }
/* Secondary section-title tier (Step 3): the compact technical sections sit a step below the
   flagship section titles, so the sections no longer all shout at one size. */
.eo2-win h2, .eo2-info h2 { font-size: var(--fs-h2-sub); line-height: 1.15; letter-spacing: -0.02em; }
.eo2 h3 { font-size: var(--fs-h3); font-weight: 650; line-height: 1.3; letter-spacing: -0.01em; }
.eo2-head { display: grid; gap: 1.25rem 3rem; margin-bottom: var(--s-head); }
@media (min-width: 62rem) { .eo2-head { grid-template-columns: minmax(0, 1fr) minmax(0, 36rem); align-items: end; } }
.eo2-head h2 { max-width: 16ch; }
.eo2-deck { max-width: 36rem; margin: 0; color: var(--text-body); font-size: var(--fs-lead); line-height: 1.55; text-wrap: balance; }
.eo2-head--center { display: block; text-align: center; }
.eo2-head--center h2 { max-width: none; }
.eo2-head--center .eo2-deck { margin: 1.25rem auto 0; max-width: 40rem; }

/* ---------- keycaps ---------- */
.eo2 kbd {
  display: inline-block; min-width: 1.9em; padding: 0.2em 0.65em 0.14em;
  border: 1px solid var(--border-light); border-bottom-width: 3px; border-radius: var(--r-sm);
  background: var(--surface-card); color: var(--text-primary);
  font: 600 var(--fs-xs)/1.4 var(--font); font-variant-numeric: tabular-nums; text-align: center; white-space: nowrap;
}

/* ---------- buttons, notices, links ---------- */
.eo2-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem 1rem; align-items: center; }
.eo2-actions > span { display: inline-flex; }
.eo2 .eo2-btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 3.25rem; padding: 0.7rem 2rem;
  border: 1px solid transparent; border-radius: 999px; font: 600 var(--fs-base)/1.2 var(--font); text-decoration: none;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.eo2 .eo2-btn--primary { background: var(--brand); color: #fff; box-shadow: var(--e0); }
.eo2 .eo2-btn--primary:hover { background: var(--brand-hover); color: #fff; box-shadow: var(--e1); }
.eo2 .eo2-btn--primary:active { background: var(--brand-pressed); }
.eo2 .eo2-btn--secondary { background: var(--surface-card); border-color: var(--border-light); color: var(--text-primary); }
.eo2 .eo2-btn--secondary:hover { background: var(--surface-blue); border-color: var(--c-blue-300); color: var(--text-primary); }
.eo2 .eo2-btn--secondary:active { background: var(--brand-soft); }
.eo2 .eo2-notice { margin: 1.25rem auto 0; padding: 0.9rem 1.1rem; border: 1px solid var(--c-blue-200); border-radius: var(--r-md); background: var(--surface-blue); color: var(--text-primary); font-size: var(--fs-sm); max-width: 46ch; text-align: left; }
.eo2-link { display: inline-flex; align-items: center; gap: 0.5rem; color: var(--brand); font-weight: 600; }
.eo2-link::after { content: ""; width: 1.1em; height: 1.1em; background: currentColor; -webkit-mask: var(--i-arrow) center / contain no-repeat; mask: var(--i-arrow) center / contain no-repeat; transition: transform var(--dur) var(--ease); }

/* ---------- media frames and designed placeholders ---------- */
.eo2-frame { position: relative; margin: 0; overflow: hidden; border: 1px solid var(--border-light); border-radius: var(--r-lg); background: var(--surface-card); box-shadow: var(--e2); }
.eo2-frame img, .eo2-frame video { display: block; width: 100%; height: 100%; object-fit: cover; background: var(--surface-blue); }
.eo2-demo { position: absolute; inset: 0; background: var(--surface-blue); }
.eo2-demo__poster, .eo2-demo__animation { position: absolute; inset: 0; object-fit: contain !important; }
.eo2-slot { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.7rem; padding: 1.5rem; text-align: center; background: radial-gradient(90% 90% at 50% 15%, #fff, transparent 70%), linear-gradient(160deg, var(--surface-blue), var(--c-blue-100) 55%, var(--c-blue-200)); }
.eo2-slot__tile { display: grid; place-items: center; width: clamp(3.5rem, 7vw, 5rem); aspect-ratio: 1; border-radius: 22%; background: #fff; box-shadow: var(--e1); }
.eo2-frame .eo2-slot__mark { width: 62%; height: auto; object-fit: contain; background: none; }
.eo2-slot__label { max-width: 32ch; color: var(--text-primary); font-size: var(--fs-base); font-weight: 600; line-height: 1.35; }
.eo2-slot__tag { padding: 0.15em 0.8em; border-radius: 999px; background: rgba(13, 68, 232, 0.09); color: var(--brand-pressed); font: 600 var(--fs-xs)/1.6 var(--font); }
.eo2-slot__dev { color: var(--text-secondary); font: 0.75rem/1.4 var(--mono); word-break: break-all; }
.eo2-slot__dev b { color: var(--brand-pressed); }
.eo2-slot__brief { max-width: 46ch; color: var(--text-body); font-size: var(--fs-xs); line-height: 1.5; }
/* Step 2: until real captures land, a frame holding only a placeholder slot collapses from its
   tall aspect ratio to a compact band, so empty sections stop dominating the page. When real
   media is present the slot is absent, :has() stops matching, and the frame's own aspect ratio
   (set inline per media) returns automatically — real product media is never constrained. */
.eo2-frame:has(> .eo2-slot):not(.eoa-intro__media) { aspect-ratio: auto !important; min-height: clamp(8.5rem, 20vw, 13rem); }

/* ---------- 01 hero ---------- */
/* A quiet cool-white wash: the product screenshot below is the hero's colour, not the backdrop. */
.eo2-hero {
  overflow: hidden;
  background: linear-gradient(180deg, var(--surface-cool), var(--surface-canvas) 85%);
}
.eo2 .eo2-hero > .eo2-wrap { padding-block: clamp(2.5rem, 2rem + 2vw, 4rem); }
.eo2-hero__head { max-width: 62rem; margin-inline: auto; text-align: center; }
.eo2-hero__identity { margin: 0 auto 1.25rem; color: var(--text-primary); font-size: var(--fs-base); font-weight: 650; letter-spacing: -0.01em; }
.eo2-hero__identity span { color: var(--text-secondary); font-weight: 500; }
.eo2-h1__l { display: block; white-space: nowrap; }
.eo2-h1__l--accent { color: var(--brand); }
.eo2-hero__lead { max-width: 44rem; margin: 1.5rem auto 2rem; color: var(--text-body); font-size: var(--fs-lead); line-height: 1.5; text-wrap: balance; }
/* The maker credit reads as text but still looks like a link on hover and keyboard focus. */
.eo2 .eo2-hero__by { color: inherit; text-decoration: underline; text-decoration-color: transparent; text-decoration-thickness: 1px; transition: text-decoration-color var(--dur) var(--ease), color var(--dur) var(--ease); }
.eo2 .eo2-hero__by:hover, .eo2 .eo2-hero__by:focus-visible { color: var(--brand); text-decoration-color: currentColor; }
.eo2-showcase {
  padding-block: clamp(0.75rem, 1.5vw, 1.5rem) clamp(2.5rem, 4vw, 4rem);
  background: var(--surface-canvas);
}
.eo2-facts { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.35rem 0; margin: 1.5rem 0 0; padding: 0; list-style: none; color: var(--text-secondary); font-size: var(--fs-sm); }
.eo2-facts li:not(:last-child)::after { content: ""; display: inline-block; width: 4px; height: 4px; margin: 0 1.1rem 0.2em; border-radius: 50%; background: var(--c-blue-300); }
.eo2-stage { position: relative; width: min(calc(100% - (2 * var(--gutter))), 112rem); margin-inline: auto; }
@media (min-width: 48rem) { .eo2-stage { width: min(75%, 84rem); } }
.eo2-showcase .eo2-frame { border: 0; border-radius: var(--r-xl); background: var(--surface-canvas); box-shadow: var(--e-soft); }
.eo2-showcase .eo2-frame > img, .eo2-showcase .eo2-frame > video { object-fit: contain; }
.eo2-showcase .eo2-slot { background: radial-gradient(70% 70% at 50% 16%, #fff, transparent 72%), linear-gradient(160deg, var(--c-blue-100), var(--c-blue-200) 55%, var(--c-blue-300)); }
.eo2-showcase .eo2-facts { justify-content: center; color: var(--text-secondary); }

/* ---------- shared: feature badge and icons ---------- */
.eo2-ico { width: 1.5rem; height: 1.5rem; flex: none; }
.eo2-badge { display: inline-flex; align-items: center; gap: 0.5rem; margin-bottom: 1.25rem; padding: 0.35rem 0.9rem 0.35rem 0.7rem; border: 1px solid var(--border-light); border-radius: 999px; background: var(--surface-card); color: var(--brand-pressed); font: 600 var(--fs-xs)/1.4 var(--font); }
.eo2 .eo2-badge__ico { width: 1.125rem; height: 1.125rem; }

/* ---------- 02 why: problem to answer lanes ---------- */
.eo2-why { background: var(--surface-canvas); }
.eo2-why__grid { display: grid; gap: var(--s-head) var(--s-col); align-items: center; }
.eo2-why__head h2 { max-width: 16ch; }
.eo2-why__head .eo2-deck { margin-top: 1.25rem; }
.eo2-lanes { display: grid; margin: 0; padding: 0; list-style: none; overflow: hidden; border: 1px solid var(--border-light); border-radius: var(--r-lg); background: var(--surface-card); }
.eo2-lane + .eo2-lane { border-top: 1px solid var(--border-light); }
.eo2-lane a { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 1.25rem; padding: 1.5rem; color: inherit; text-decoration: none; transition: background-color var(--dur) var(--ease); }
.eo2-lane a:hover { background: var(--surface-cool); }
.eo2 .eo2-lane__ico { width: 3.5rem; height: 3.5rem; padding: 0.85rem; border-radius: var(--r-md); }
.eo2-lane:nth-child(1) .eo2-lane__ico { background: var(--surface-blue-strong); color: var(--brand); }
.eo2-lane:nth-child(2) .eo2-lane__ico { background: var(--brand); color: #fff; }
.eo2-lane:nth-child(3) .eo2-lane__ico { background: var(--surface-navy); color: #fff; }
.eo2-lane__body { display: grid; gap: 0.35rem; line-height: 1.4; }
.eo2-lane__problem { color: var(--text-secondary); font-size: var(--fs-sm); text-decoration: line-through; text-decoration-color: var(--c-blue-200); text-decoration-thickness: 1.5px; }
.eo2-lane__answer { color: var(--text-primary); font: 700 var(--fs-h3-lg)/1.15 var(--font); letter-spacing: -0.02em; }
.eo2-lane__text { color: var(--text-body); font-size: var(--fs-base); }
.eo2-lane__go { display: grid; place-items: center; width: 2.75rem; height: 2.75rem; border: 1px solid var(--border-light); border-radius: 50%; color: var(--brand); transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease); }
.eo2-lane__go::after { content: ""; width: 1.1rem; height: 1.1rem; background: currentColor; -webkit-mask: var(--i-arrow) center / contain no-repeat; mask: var(--i-arrow) center / contain no-repeat; }
.eo2-lane a:hover .eo2-lane__go { border-color: var(--brand); background: var(--brand); color: #fff; }

/* ---------- 03a quick search: cool light stage, the demo is the star ---------- */
.eo2-qs { overflow: hidden; background: var(--surface-cool); }
.eo2 .eo2-qs > .eo2-wrap { padding-block: var(--s-section-lg); }
.eo2 .eo2-qs__hint { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 0.4rem; max-width: none; margin: 1.5rem 0 0; color: var(--text-secondary); font-size: var(--fs-sm); }
.eo2-qs__hint span { margin-left: 0.4rem; }
.eo2-qs__media { position: relative; isolation: isolate; width: min(100%, 80rem); margin: clamp(2rem, 4vw, 3.5rem) auto 0; }
.eo2-qs .eo2-frame { border-radius: var(--r-xl); box-shadow: var(--e3); }
.eo2-reach { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem; margin: 2rem 0 0; padding: 0; list-style: none; }
.eo2-reach li { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.45rem 1rem 0.45rem 0.8rem; border: 1px solid var(--border-light); border-radius: 999px; background: var(--surface-card); color: var(--text-body); font-size: var(--fs-sm); }
.eo2-reach .eo2-ico { width: 1.125rem; height: 1.125rem; color: var(--brand); }

/* ---------- 03b quick view: pale blue, wide preview, controls under it ---------- */
.eo2-qv { background: var(--surface-blue); }
.eo2 .eo2-qv > .eo2-wrap { padding-block: var(--s-section-lg); }
/* Heading and deck stack, like Quick Search: one focused message per section header. */
.eo2-qv__head { display: grid; gap: 1.25rem; max-width: 46rem; margin-bottom: var(--s-head); }
.eo2-qv__head .eo2-deck { max-width: 36rem; }
.eo2-qv__media { width: min(100%, 76rem); margin-inline: auto; }
.eo2-qv .eo2-frame { border-radius: var(--r-xl); box-shadow: var(--e3); }
.eo2-qv__controls { width: min(100%, 52rem); margin: 2rem auto 0; text-align: center; }

.eo2-tabs__list { display: none; }
.eo2-js .eo2-tabs__list { display: flex; gap: 0.25rem; overflow-x: auto; scrollbar-width: thin; }
.eo2 .eo2-tab { flex: none; display: inline-flex; align-items: center; min-height: 2.5rem; padding: 0.45rem 1.05rem; border: 1px solid transparent; border-radius: 999px; background: none; color: var(--text-body); font: 600 var(--fs-sm)/1.3 var(--font); cursor: pointer; transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease); }
.eo2 .eo2-tab:hover { color: var(--text-primary); background: rgba(13, 68, 232, 0.07); }
/* Fallback fill when the JS indicator is absent (e.g. before init); the indicator supersedes it. */
.eo2 .eo2-tab[aria-selected="true"] { background: var(--brand); color: #fff; }
.eo2-tabs--ind .eo2-tab:hover { background: rgba(13, 68, 232, 0.07); }
.eo2-tabs--ind .eo2-tab[aria-selected="true"]:hover { background: none; }
.eo2-qv .eo2-tabs__list, .eo2-explore .eo2-tabs__list { padding: 0.25rem; border: 1px solid var(--border-light); border-radius: var(--r-card); background: var(--surface-card); width: fit-content; max-width: 100%; }
.eo2-qv .eo2-tabs__list { flex-wrap: wrap; justify-content: center; margin-inline: auto; border-radius: 999px; }
.eo2-js .eo2-tabpanel__h { display: none; }
.eo2-tabpanel { padding: 1.5rem 0 0; }
.eo2-tabpanel:not(:first-of-type) { margin-top: 1.5rem; border-top: 1px solid var(--border-light); }
.eo2-js .eo2-tabpanel:not(:first-of-type) { margin-top: 0; border-top: 0; }
.eo2-qv__controls .eo2-tabpanel > p { margin-inline: auto; color: var(--text-primary); font-size: var(--fs-base); }
.eo2-tabpanel__h { margin-bottom: 0.5rem; }
.eo2-types { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 1.25rem 0 0; padding: 0; list-style: none; }
.eo2-types li { padding: 0.1em 0.7em; border: 1px solid var(--border-light); border-radius: var(--r-sm); background: var(--surface-card); color: var(--text-body); font-size: var(--fs-xs); font-weight: 500; line-height: 1.8; }
.eo2-keylist { display: flex; flex-wrap: wrap; gap: 0.6rem 1.75rem; margin: 1.5rem 0 0; padding: 0; list-style: none; }
.eo2-keylist li { display: inline-flex; align-items: center; gap: 0.6rem; font-size: var(--fs-sm); color: var(--text-body); }
.eo2-qv__controls .eo2-types, .eo2-qv__controls .eo2-keylist { justify-content: center; }

/* ---------- 03c shelf: a soft cool-tinted card, the portrait demo beside the copy ---------- */
.eo2-shelf { --shelf-pad: clamp(1.5rem, 1rem + 3vw, 3.5rem); background: var(--surface-canvas); }
.eo2 .eo2-shelf > .eo2-wrap { padding-block: var(--s-section-sm) var(--s-section); }
.eo2-shelf__card { position: relative; overflow: hidden; padding: var(--shelf-pad); border: 1px solid var(--border-light); border-radius: var(--r-xl); background: linear-gradient(160deg, var(--surface-blue), var(--surface-cool) 60%); box-shadow: var(--e1); color: var(--text-body); }
.eo2-shelf__grid { display: grid; gap: var(--s-col); align-items: center; }
.eo2-shelf .eo2-deck { margin-top: 1.25rem; }
.eo2-flow { display: grid; gap: 1.25rem; margin: 2rem 0 0; padding: 0; list-style: none; }
.eo2-flow li { position: relative; display: flex; gap: 1rem; }
.eo2-flow li:not(:last-child)::after { content: ""; position: absolute; left: 1.25rem; top: 2.75rem; bottom: -1.1rem; width: 1px; background: var(--c-blue-200); }
.eo2 .eo2-flow__ico { width: 2.5rem; height: 2.5rem; padding: 0.6rem; border: 1px solid var(--c-blue-200); border-radius: 50%; background: var(--surface-card); color: var(--brand); }
.eo2-flow h3 { font-size: var(--fs-base); }
.eo2-flow p { margin-top: 0.15rem; color: var(--text-body); font-size: var(--fs-sm); }
.eo2-shelf__media { min-width: 0; }
.eo2-shelf .eo2-frame { box-shadow: var(--e3); }
.eo2-shelf__keys { margin-top: 2rem; }
.eo2-shelf__keys summary { display: inline-flex; align-items: center; gap: 0.6rem; padding: 0.6rem 1.1rem; border: 1px solid var(--border-light); border-radius: 999px; background: var(--surface-card); color: var(--text-primary); font: 600 var(--fs-sm)/1.3 var(--font); cursor: pointer; list-style: none; transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease); }
.eo2-shelf__keys summary::-webkit-details-marker { display: none; }
.eo2-shelf__keys summary:hover { border-color: var(--c-blue-300); background: var(--surface-blue); }
.eo2-shelf__keys summary::after { content: ""; width: 1rem; height: 1rem; background: currentColor; -webkit-mask: var(--i-plus) center / contain no-repeat; mask: var(--i-plus) center / contain no-repeat; transition: transform var(--dur) var(--ease); }
.eo2-shelf__keys[open] summary::after { transform: rotate(45deg); }
.eo2-shelf__keys[open] summary { margin-bottom: 1rem; }
.eo2-shelf__keys > ul, .eo2-shelf__keys > p { padding-inline: var(--pad-feature); }
.eo2-keylist--grid { display: grid; gap: 0.9rem 2rem; margin: 0; padding: var(--pad-feature); border: 1px solid var(--border-light); border-radius: var(--r-card); background: var(--surface-card); }
.eo2-keylist--grid li { display: grid; grid-template-columns: 6rem minmax(0, 1fr); gap: 0.75rem; color: var(--text-body); }
.eo2-keylist--grid kbd { justify-self: start; }
.eo2-shelf__keys > .eo2-shelf__note { margin-top: 1rem; padding-inline: 0; color: var(--text-secondary); font-size: var(--fs-sm); }
.eo2-shelf__keys > ul { padding-inline: var(--pad-feature); }

/* ---------- 04 explore: horizontal product showcase ---------- */
.eo2-explore { background: var(--surface-cool); }
.eo2-rail { margin-bottom: var(--s-section-sm); }
.eo2-rail { position: relative; }
.eo2-rail__bar { display: contents; }
.eo2 .eo2-rail__hint { display: none; }
.eo2-rail__nav { position: absolute; z-index: 2; inset-inline: 0.75rem; top: calc(50% - 1.25rem); display: flex; justify-content: space-between; pointer-events: none; }
.eo2 .eo2-rail__btn { display: grid; place-items: center; width: 2.75rem; height: 2.75rem; padding: 0; border: 1px solid var(--border-light); border-radius: 50%; background: rgba(255, 255, 255, 0.92); box-shadow: var(--e1); color: var(--text-secondary); cursor: pointer; pointer-events: auto; -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); transition: opacity var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease), translate var(--dur) var(--ease); }
.eo2 .eo2-rail__btn .eo2-ico { width: 1.25rem; height: 1.25rem; }
.eo2 .eo2-rail__btn:hover:not([aria-disabled="true"]) { border-color: var(--c-blue-300); color: var(--brand); }
.eo2 [data-eo2-prev]:hover:not([aria-disabled="true"]) { translate: -2px 0; }
.eo2 [data-eo2-next]:hover:not([aria-disabled="true"]) { translate: 2px 0; }
.eo2 .eo2-rail__btn[aria-disabled="true"] { opacity: 0.38; cursor: default; }
@media (hover: none) { .eo2-rail__nav { display: none; } }
.eo2-rail__track { display: flex; gap: var(--gap); --rail-edge: calc((100vw - min(100vw, var(--max))) / 2 + var(--gutter)); margin-inline: calc(-1 * var(--rail-edge)); margin-top: -0.5rem; padding: 0.5rem var(--rail-edge) 1rem; /* top room for the 4px hover lift; overflow-x also clips y */ list-style: none; overflow-x: auto; overscroll-behavior-x: contain; scroll-snap-type: x mandatory; scroll-behavior: smooth; scroll-padding-inline: var(--rail-edge); scrollbar-width: thin; }
.eo2-slide { transition: translate 0.25s var(--ease), box-shadow 0.25s var(--ease); flex: 0 0 min(30rem, 84vw); display: grid; grid-template-rows: auto 1fr; gap: 1rem; padding: 0.75rem 0.75rem 1.5rem; border-radius: var(--r-lg); scroll-snap-align: start; }
.eo2-slide__media .eo2-frame { border: 0; border-radius: var(--r-md); box-shadow: var(--e0); }
.eo2-slide__copy { padding-inline: 0.5rem; }
.eo2-slide h3 { display: flex; align-items: center; gap: 0.6rem; font-size: var(--fs-h3-lg); letter-spacing: -0.02em; }
.eo2 .eo2-slide__ico { color: var(--brand); }
.eo2-slide__copy > p { margin-top: 0.6rem; max-width: 40ch; }
/* Light, tone-stepped cards: the demos carry the colour. */
.eo2-slide--tabs { background: var(--surface-blue-strong); }
.eo2-slide--tree, .eo2-slide--colours { background: var(--surface-card); box-shadow: inset 0 0 0 1px var(--border-light); }
.eo2-slide--network { background: var(--surface-blue); box-shadow: inset 0 0 0 1px var(--border-light); }
/* The FTP/FTPS/SMB protocol chips duplicate the slide title, so they are hidden (owner request). */
.eo2-slide__chips { display: none; }
.eo2-swatch { display: flex; gap: 0.5rem; margin-top: 1rem; }
.eo2-swatch i { width: 1.25rem; height: 1.25rem; border-radius: 50%; box-shadow: 0 0 0 2px var(--surface-card), 0 0 0 3px var(--border-light); }
.eo2-swatch i:nth-child(1) { background: var(--c-blue-400); }
.eo2-swatch i:nth-child(2) { background: var(--c-ok); }
.eo2-swatch i:nth-child(3) { background: var(--c-warn); }
.eo2-swatch i:nth-child(4) { background: var(--c-err); }
.eo2-swatch i:nth-child(5) { background: var(--c-blue-200); }

.eo2-more__head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 0.5rem 2rem; margin-bottom: 1.25rem; }
.eo2-more__head h3 { font-size: var(--fs-h3-lg); letter-spacing: -0.02em; }
.eo2 .eo2-more__head p { color: var(--text-secondary); font-size: var(--fs-sm); }
.eo2-tabs--side .eo2-tabs__list { flex-wrap: wrap; padding: 0.3rem; border: 1px solid var(--border-light); border-radius: 999px; background: var(--surface-card); width: fit-content; max-width: 100%; }
.eo2 .eo2-tab__ico { width: 1.125rem; height: 1.125rem; margin-right: 0.5rem; }
.eo2-explore__panels { margin-top: 1rem; }
.eo2-explore__panels .eo2-tabpanel { display: grid; gap: 1.5rem var(--s-col); margin: 0; padding: clamp(1.5rem, 1rem + 2vw, 2.5rem); border: 1px solid var(--border-light); border-radius: var(--r-lg); background: var(--surface-card); }
.eo2:not(.eo2-js) .eo2-explore__panels .eo2-tabpanel + .eo2-tabpanel { margin-top: 1rem; }
.eo2-explore__panels .eo2-tabpanel__h { grid-column: 1 / -1; margin: 0; }
.eo2 .eo2-explore__lead { max-width: 20ch; margin: 0; color: var(--text-primary); font: 650 clamp(1.5rem, 1.1rem + 1.2vw, 2rem)/1.2 var(--font); letter-spacing: -0.02em; }
.eo2-more__lead .eo2-frame { margin-top: 1.5rem; border-radius: var(--r-card); box-shadow: var(--e0); }
.eo2-feat { display: grid; gap: 0.75rem; margin: 0; }
.eo2-feat > div { padding: 1.25rem 1.25rem 1.25rem 3.25rem; position: relative; border-radius: var(--r-card); background: var(--surface-cool); }
.eo2-feat > div::before { content: ""; position: absolute; left: 1.25rem; top: 1.45rem; width: 1.1rem; height: 1.1rem; background: var(--brand); -webkit-mask: var(--i-check) center / contain no-repeat; mask: var(--i-check) center / contain no-repeat; }
.eo2-feat dt { color: var(--text-primary); font-weight: 650; }
.eo2-feat dd { margin: 0.2rem 0 0; color: var(--text-body); font-size: var(--fs-sm); line-height: 1.55; }

/* ---------- 05 windows: light fact sheet, flat, dividers only ---------- */
.eo2-win { background: var(--surface-canvas); }
.eo2 .eo2-win > .eo2-wrap { padding-block: var(--s-section-sm); }
.eo2-win h2 { max-width: 16ch; }
.eo2-win__grid { display: grid; gap: var(--s-head); }
.eo2-win__copy p { margin-top: 1.25rem; max-width: 40rem; color: var(--text-body); font-size: var(--fs-lead); }
.eo2-spec { display: grid; gap: 0 2.5rem; margin: 0; }
.eo2-spec > div { padding: 1.25rem 0; border-top: 1px solid var(--border-light); }
.eo2-spec dt { color: var(--text-primary); font-weight: 650; font-size: 1.125rem; }
.eo2-spec dd { margin: 0.35rem 0 0; color: var(--text-body); font-size: var(--fs-base); }

/* ---------- 06 get: the one blue call-to-action band, flat colour without glow ---------- */
.eo2-get { overflow: hidden; background: linear-gradient(160deg, var(--brand), var(--c-blue-700)); color: var(--text-on-dark-body); }
.eo2-get__grid { display: grid; gap: var(--s-col); align-items: start; }
.eo2-get h2 { margin-bottom: 1rem; color: #fff; }
.eo2-get__deck { margin: 0 0 2rem; color: #fff; font-size: var(--fs-lead); }
.eo2-path { margin: 0; padding: 0; list-style: none; counter-reset: eo2-step; }
.eo2-path li { position: relative; padding: 1rem 0 1rem 3.4rem; border-top: 1px solid var(--line-on-blue); counter-increment: eo2-step; color: #e6ecff; }
.eo2-path li:last-child { border-bottom: 1px solid var(--line-on-blue); }
.eo2-path li::before { content: counter(eo2-step); position: absolute; left: 0; top: 0.9rem; display: grid; place-items: center; width: 2.1rem; height: 2.1rem; border-radius: 50%; background: #fff; color: var(--brand); font: 700 var(--fs-sm)/1 var(--font); }
.eo2-path strong { color: #fff; }
.eo2-path a { color: #fff; text-decoration-thickness: 1px; }
.eo2-path a:hover { color: var(--c-blue-100); }
.eo2-get__panel { padding: var(--pad-feature); border-radius: var(--r-lg); background: var(--surface-card); box-shadow: var(--e-soft); color: var(--text-body); }
.eo2-get__panel .eo2-actions { justify-content: flex-start; }
.eo2-get__panel .eo2-notice { margin-left: 0; }
.eo2-release { margin-bottom: 1.5rem; color: var(--text-body); }
.eo2-release strong { color: var(--text-primary); font-size: 1.875rem; font-weight: 700; letter-spacing: -0.025em; }
.eo2-release__flag { margin-left: 0.5rem; padding: 0.1em 0.7em; border-radius: 999px; background: rgba(34, 197, 94, 0.14); color: #136c34; font-size: var(--fs-xs); font-weight: 600; }
/* Installer reassurance: what SmartScreen will show and the exact clicks, beside the download. */
.eo2-install { margin-top: 1.5rem; padding-top: 1.25rem; border-top: 1px solid var(--border-light); }
.eo2 .eo2-install__title { margin-bottom: 0.5rem; font-size: var(--fs-base); }
.eo2-install p { font-size: var(--fs-sm); }
.eo2-install q { color: var(--text-primary); font-weight: 600; quotes: "\201C" "\201D"; }
.eo2-install__steps { display: grid; gap: 0.5rem; margin: 0.9rem 0 0; padding: 0; list-style: none; counter-reset: eo2-install; font-size: var(--fs-sm); }
.eo2-install__steps li { position: relative; padding-left: 2rem; counter-increment: eo2-install; }
.eo2-install__steps li::before { content: counter(eo2-install); position: absolute; left: 0; top: 0.05rem; display: grid; place-items: center; width: 1.35rem; height: 1.35rem; border-radius: 50%; background: var(--brand-soft); color: var(--brand-pressed); font: 700 0.75rem/1 var(--font); }
.eo2-install__steps strong { color: var(--text-primary); }
.eo2-install code { padding: 0.05em 0.4em; border: 1px solid var(--border-light); border-radius: 6px; background: var(--surface-card); color: var(--text-primary); font: 500 0.875em/1.5 var(--mono); word-break: break-all; }
.eo2-get__note { margin-top: 1.5rem; padding-top: 1.25rem; border-top: 1px solid var(--border-light); font-size: var(--fs-sm); line-height: 1.6; }
.eo2-get__note strong { color: var(--text-primary); }

/* ---------- 07 resources: light, flows into the shared footer ---------- */
.eo2-info { background: var(--surface-canvas); }
.eo2 .eo2-info > .eo2-wrap { padding-block: var(--s-section-sm) var(--s-section); }
.eo2-info h2 { margin-bottom: var(--s-head); }
.eo2-info__grid { display: grid; gap: 2.5rem 3rem; }
.eo2-info__block { padding-top: 1.25rem; border-top: 1px solid var(--border-light); }
.eo2-info__block h3 { margin-bottom: 0.75rem; }
.eo2-info__block p { font-size: var(--fs-sm); }
.eo2-info__block p + p { margin-top: 0.8rem; }
.eo2-info__meta { margin-bottom: 0.75rem; color: var(--text-secondary); }
.eo2-info__empty { color: var(--text-secondary); }
.eo2-list { margin: 0; padding: 0; list-style: none; font-size: var(--fs-sm); }
.eo2-list li { position: relative; padding: 0.35rem 0 0.35rem 1.25rem; }
.eo2-list li::before { content: ""; position: absolute; left: 0; top: 1.05em; width: 6px; height: 2px; border-radius: 2px; background: var(--brand); }
.eo2-legal { display: flex; gap: 1.5rem; margin-top: 1.25rem; }
.eo2-legal a { display: inline-block; padding: 0.7rem 0; font-weight: 600; }
.eo2-faq { display: grid; margin-bottom: var(--s-head); }
.eo2-faq h3 { grid-column: 1 / -1; margin-bottom: 1rem; }
.eo2-faq details { align-self: start; border-top: 1px solid var(--border-light); }
.eo2-faq summary { position: relative; padding: 1.1rem 2.75rem 1.1rem 0; color: var(--text-primary); font-weight: 600; cursor: pointer; list-style: none; }
.eo2-faq summary::-webkit-details-marker { display: none; }
.eo2-faq summary::after { content: ""; position: absolute; right: 0.25rem; top: 1.2rem; width: 1.25rem; height: 1.25rem; background: var(--brand); -webkit-mask: var(--i-plus) center / contain no-repeat; mask: var(--i-plus) center / contain no-repeat; transition: transform var(--dur) var(--ease); }
.eo2-faq details[open] summary::after { transform: rotate(45deg); }
.eo2-faq details p { padding: 0 2.75rem 1.25rem 0; }

/* ---------- 08 final call to action: the page's one dark section, calm and static ---------- */
.eo2-final { position: relative; overflow: hidden; background: linear-gradient(180deg, var(--surface-navy), var(--surface-ink)); }
.eo2 .eo2-final > .eo2-wrap { padding-block: var(--s-section-lg); }
.eo2-final__panel { position: relative; text-align: center; }
.eo2-final__mark { display: block; width: 4rem; height: 4rem; margin: 0 auto 1.75rem; border-radius: 22%; background: #fff; padding: 0.4rem; }
.eo2 .eo2-final h2 { max-width: 16ch; margin-inline: auto; color: var(--text-on-dark); }
.eo2-final h2 span { display: block; color: var(--c-blue-300); }
.eo2 .eo2-final__deck { max-width: 36rem; margin: 1.25rem auto 2rem; color: var(--text-on-dark-body); font-size: var(--fs-lead); }
.eo2 .eo2-btn--light { background: #fff; color: var(--c-blue-700); }
.eo2 .eo2-btn--light:hover { background: var(--c-blue-100); color: var(--c-blue-800); }
.eo2 .eo2-notice--dark { border-color: rgba(255, 255, 255, 0.24); background: rgba(255, 255, 255, 0.08); color: #fff; }
.eo2 .eo2-final__fine { max-width: none; margin-top: 1.5rem; color: var(--text-on-dark-muted); font-size: var(--fs-sm); }

/* ---------- responsive ---------- */
@media (min-width: 48rem) {
  .eo2-keylist--grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .eo2-spec { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .eo2-info__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .eo2-info__block--notes { grid-column: 1 / -1; }
  .eo2-faq { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 3rem; }
}
@media (min-width: 62rem) {
  .eo2-explore__panels .eo2-tabpanel { grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); align-items: start; }
  .eo2-feat { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .eo2-why__grid { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
  .eo2-why__head h2 { max-width: 14ch; }
  .eo2-shelf__grid { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
  .eo2-get__grid { grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); }
  .eo2-keylist--grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .eo2-spec { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .eo2-info__grid { grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); }
}
@media (max-width: 47.99rem) {
  .eo2 .eo2-lane a { grid-template-columns: auto minmax(0, 1fr); gap: 1rem; padding: 1.25rem; }
  .eo2-lane__go { display: none; }
  .eo2 .eo2-lane__ico { width: 3rem; height: 3rem; padding: 0.7rem; }
  .eo2-qs .eo2-head--center, .eo2-qv__head { text-align: left; }
  .eo2-qs__hint, .eo2-reach, .eo2-qv__controls .eo2-types, .eo2-qv__controls .eo2-keylist { justify-content: flex-start; }
  .eo2-qv__controls { text-align: left; }
  .eo2-qv .eo2-tabs__list { justify-content: flex-start; }
  .eo2-slide { align-self: start; } /* one card shows at a time: size to its own content, not the tallest card */
  .eo2-hero__head { text-align: left; }
  .eo2-hero__lead { margin-inline: 0; }
  .eo2-actions { justify-content: flex-start; }
  .eo2-facts { justify-content: flex-start; }
  .eo2-head--center, .eo2-qs__more { text-align: left; }
  .eo2-head--center .eo2-deck { margin-inline: 0; }
  .eo2 .eo2-btn { width: 100%; }
  .eo2-actions > span { display: block; width: 100%; }
  .eo2-stage .eo2-frame { border-radius: var(--r-lg); }
  .eo2-keylist--grid li { grid-template-columns: 5.5rem minmax(0, 1fr); }
  .eo2-qv .eo2-tabs__list { width: 100%; }
  .eo2-qv .eo2-tab { flex: 1 1 auto; justify-content: center; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .eo2 *, .eo2 *::before, .eo2 *::after { animation: none !important; transition-property: color, background-color, border-color, box-shadow, opacity !important; transition-duration: 0.12s !important; transition-delay: 0s !important; }
	.eo2-demo__animation { display: none !important; }
}

@media print {
  .eo2-demo__animation { display: none !important; }
  .eo2-demo__poster { display: block !important; }
}

/* ---------- scroll-activated header: page-side adjustments (header rules live inline in the template) ---------- */
html.eo2-glass .eo2 .eo2-hero > .eo2-wrap { padding-top: clamp(2.5rem, 2rem + 2vw, 4rem); }
html.eo2-glass .eo2 [id] { scroll-margin-top: calc(var(--eo2-header-h, 4.25rem) + 1rem); }

/* ---------- rail: no visible scrollbar once the arrows exist (JS adds .eo2-js) ---------- */
.eo2-js .eo2-rail__track { scrollbar-width: none; }
.eo2-js .eo2-rail__track::-webkit-scrollbar { display: none; }

/* ---------- motion ---------- */
@keyframes eo2-rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
@keyframes eo2-pop { from { opacity: 0; transform: translateY(24px) scale(0.975); } to { opacity: 1; transform: none; } }
@keyframes eo2-panel-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
/* hero entrance: plays once on load, always ends visible (the h1 is never animated) */
.eo2-hero__identity { animation: eo2-rise 0.7s var(--ease) backwards; }
.eo2-hero__lead { animation: eo2-rise 0.7s var(--ease) 0.08s backwards; }
.eo2-hero .eo2-actions { animation: eo2-rise 0.7s var(--ease) 0.16s backwards; }
.eo2-facts { animation: eo2-rise 0.7s var(--ease) 0.32s backwards; }
.eo2-stage { animation: eo2-pop 0.9s var(--ease) 0.3s backwards; }
/* content that swaps in place */
.eo2-tabpanel:not([hidden]) { animation: eo2-panel-in var(--dur-move) var(--ease); }
.eo2-faq details[open] > p, .eo2-shelf__keys[open] > :not(summary) { animation: eo2-panel-in 0.3s var(--ease); }

/* ---------- shared tab motion (Step 1): one sliding blue indicator ---------- */
/* The active tab's background is carried by a single indicator that slides between tabs,
   instead of each pill switching its own background. JS positions it; CSS animates it. */
.eo2-js .eo2-tabs { position: relative; }
.eo2-js .eo2-tabs__list { position: relative; flex-wrap: nowrap; }
.eo2 .eo2-tab { position: relative; z-index: 1; transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease), scale var(--dur-fast) var(--ease); }
.eo2 .eo2-tab:active { scale: 0.97; }
/* With the indicator present the selected pill only changes text colour; no per-pill fill or ring. */
.eo2-tabs--ind .eo2-tab[aria-selected="true"] { background: none; box-shadow: none; }
.eo2-tabs__indicator {
  position: absolute; left: 0; top: 0; z-index: 0; margin: 0; padding: 0; border-radius: 999px;
  background: var(--brand); box-shadow: var(--e1); pointer-events: none; opacity: 0;
  transition: transform var(--dur-move) var(--ease), width var(--dur-move) var(--ease), height var(--dur-move) var(--ease), opacity var(--dur) var(--ease);
  will-change: transform, width;
}
.eo2-tabs--ind.eo2-tabs--ready .eo2-tabs__indicator { opacity: 1; }
.eo2-qv .eo2-tabs__indicator { border-radius: 999px; }
.eo2 .eo2-btn { transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), translate var(--dur) var(--ease), scale var(--dur) var(--ease); }
.eo2 .eo2-btn:active { scale: 0.98; }
/* scroll reveal: JS adds .eo2-rv-on and .eo2-rv, so with no JS or reduced motion nothing is ever hidden */
.eo2-rv-on .eo2-rv { opacity: 0; transform: translateY(20px); transition: opacity 0.6s var(--ease) var(--rv-d, 0ms), transform 0.7s var(--ease) var(--rv-d, 0ms), translate var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background-color var(--dur) var(--ease); }
.eo2-rv-on .eo2-rv--scale { transform: translateY(28px) scale(0.975); }
.eo2-rv-on .eo2-rv.eo2-in { opacity: 1; transform: none; }
/* hover: a small, consistent lift */
@media (hover: hover) {
  .eo2-slide:hover { translate: 0 -4px; }
  .eo2-slide--tree:hover, .eo2-slide--colours:hover, .eo2-slide--network:hover { box-shadow: inset 0 0 0 1px var(--c-blue-200), var(--e2); }
  .eo2-slide--tabs:hover { box-shadow: var(--e2); }
  .eo2-feat > div { transition: background-color var(--dur) var(--ease), translate var(--dur) var(--ease); }
  .eo2-feat > div:hover { background: var(--surface-blue); translate: 0 -2px; }
  .eo2-reach li { transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease); }
  .eo2-reach li:hover { border-color: var(--c-blue-300); color: var(--text-primary); }
  .eo2 .eo2-btn:hover { translate: 0 -1px; }
}
.eo2-lane__ico { transition: scale 0.25s var(--ease); }
.eo2-lane a:hover .eo2-lane__ico { scale: 1.08; }
.eo2-lane__go { transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease), translate var(--dur) var(--ease); }
.eo2-lane a:hover .eo2-lane__go { translate: 4px 0; }
@media (prefers-reduced-motion: reduce) {
  .eo2-rail__track { scroll-behavior: auto; }
  .eo2 *, .eo2 *::before, .eo2 *::after { translate: none !important; scale: none !important; }
  /* The indicator still marks the active tab, it just snaps instead of sliding. */
  .eo2-tabs__indicator { transition: opacity var(--dur) var(--ease) !important; }
  .eo2-js .eo2-tabs__list { scroll-behavior: auto; }
}

/* ---------- desktop hero type remains balanced without forcing the introduction to viewport height ---------- */
@media (min-width: 62rem) and (min-height: 36rem) {
  .eo2-hero h1 { font-size: min(var(--fs-h1), 8.2svh); }
}

/* ---------- Quick Search composition: left-aligned head, near full-bleed stage, chips set on its lower edge ---------- */
.eo2-qs { --qs-w: min(100vw - 2rem, 96rem, max(34rem, calc((100svh - 4rem) * 1.6))); }
.eo2-qs__head { max-width: 46rem; margin-bottom: clamp(2rem, 4vw, 3.5rem); }
.eo2-qs__head .eo2-deck { max-width: 34rem; margin-top: 1.25rem; }
.eo2 .eo2-qs__hint { justify-content: flex-start; }
.eo2-qs__media { width: var(--qs-w); max-width: none; margin: 0 0 2.5rem calc((100% - var(--qs-w)) / 2); }
.eo2-qs__media .eo2-reach { position: absolute; left: 50%; bottom: 0; translate: -50% 50%; justify-content: center; width: max-content; max-width: calc(100% - 2rem); margin: 0; }
.eo2-qs__media .eo2-reach li { background: var(--surface-card); }
@media (max-width: 47.99rem) {
  .eo2-qs__media { width: 100%; margin: 0; }
  .eo2-qs__media .eo2-reach { position: static; translate: none; width: auto; max-width: none; justify-content: flex-start; margin-top: 1rem; }
  .eo2-qs__media .eo2-reach li { background: none; }
}

/* ================= audit fixes (taste audit, items 2 to 7 and P3) ================= */

/* item 2: rail. Equal copy blocks, arrows level with the media, a quiet progress line */
.eo2-slide__copy { min-height: 10.5rem; }
.eo2-rail__nav { top: calc(1rem + (min(30rem, 84vw) - 2rem) * 0.375); translate: 0 -50%; }
.eo2-rail__progress { display: none; position: relative; height: 3px; width: min(12rem, 40%); margin: 0.5rem 0 0; border-radius: 3px; background: var(--border-light); overflow: hidden; }
.eo2-js .eo2-rail__progress { display: block; }
.eo2-rail__progress i { position: absolute; inset: 0 auto 0 0; width: var(--rail-w, 30%); border-radius: 3px; background: var(--brand); translate: var(--rail-x, 0) 0; transition: translate 0.15s linear; }

/* item 3: the three delays, at the weight of a section opener */
.eo2-why__grid { align-items: center; }
.eo2-why__head h2 { max-width: none; }
.eo2-lane a { gap: 1.5rem; padding: 1.75rem; }
.eo2 .eo2-lane__ico { width: 3.75rem; height: 3.75rem; padding: 0.95rem; }
.eo2-lane__problem { color: var(--text-body); font-size: 1.0625rem; text-decoration-color: var(--c-blue-300); }
.eo2-lane__answer { font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem); }
.eo2-lane__text { font-size: 1.0625rem; }
@media (min-width: 62rem) { .eo2-why__grid { grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); } .eo2-why__head h2 { max-width: none; } }

/* item 4: the resources zone as tone-stepped panels with readable type */
.eo2-info__grid { gap: 1.25rem; }
.eo2-info__block { padding: clamp(1.5rem, 1rem + 1.5vw, 2.25rem); border-top: 0; border-radius: var(--r-lg); background: var(--surface-cool); }
.eo2-info__block h3 { margin-bottom: 1rem; font-size: var(--fs-h3-lg); letter-spacing: -0.02em; }
.eo2-info__block p { font-size: var(--fs-base); }
.eo2-list { font-size: var(--fs-base); }
.eo2-list li { padding: 0.4rem 0 0.4rem 1.75rem; }
.eo2-list li::before { top: 0.65em; width: 1rem; height: 1rem; border-radius: 0; background: var(--brand); -webkit-mask: var(--i-check) center / contain no-repeat; mask: var(--i-check) center / contain no-repeat; }
.eo2-faq h3 { font-size: var(--fs-h3-lg); letter-spacing: -0.02em; }
.eo2-faq summary { font-size: var(--fs-base); }
.eo2-faq details p { font-size: var(--fs-base); }

/* item 5: empty media slots read as an app window (disappears when real media arrives) */
.eo2-frame[data-eo2-media="hero"] .eo2-slot::before, .eo2-frame[data-eo2-media="quick-search"] .eo2-slot::before, .eo2-frame[data-eo2-media="quick-view"] .eo2-slot::before, .eo2-frame[data-eo2-media="shelf"] .eo2-slot::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 2.5rem; border-bottom: 1px solid rgba(8, 21, 58, 0.08); background:
    radial-gradient(circle at 1.25rem 50%, rgba(8, 21, 58, 0.2) 0.3125rem, transparent 0.375rem),
    radial-gradient(circle at 2.25rem 50%, rgba(8, 21, 58, 0.2) 0.3125rem, transparent 0.375rem),
    radial-gradient(circle at 3.25rem 50%, rgba(8, 21, 58, 0.2) 0.3125rem, transparent 0.375rem),
    rgba(255, 255, 255, 0.45); }

/* item 6: phone order and rhythm */
@media (max-width: 61.99rem) {
  .eo2-shelf__copy { display: contents; }
  .eo2-shelf__media { order: 4; }
  .eo2-flow { order: 5; margin-top: 0; }
  .eo2-shelf__keys { order: 6; margin-top: 0; }
}
@media (max-width: 47.99rem) {
  .eo2-tabs--side .eo2-tabs__list { flex-wrap: nowrap; width: 100%; overflow-x: auto; scrollbar-width: none; border-radius: 999px; }
  .eo2-tabs--side .eo2-tabs__list::-webkit-scrollbar { display: none; }
  .eo2-tabs--side .eo2-tab { white-space: nowrap; }
}

/* item 7: the portrait Shelf demo sits centred beside the copy, capped so it never outgrows it */
.eo2-shelf__media .eo2-frame { width: min(100%, 36rem); margin-inline: auto; }
@media (min-width: 62rem) {
  .eo2-shelf__copy .eo2-keylist--grid { grid-template-columns: 1fr; }
  .eo2-shelf__keys { margin-top: 1.75rem; }
}

/* P3: printed or saved pages never keep scroll reveals hidden */
@media print { .eo2-rv-on .eo2-rv { opacity: 1 !important; transform: none !important; } }

/* item 2 (cont.): swatches and protocol chips sit on the title row, so every rail card has the same copy height */
.eo2-slide__copy { position: relative; min-height: 8.5rem; }
.eo2-slide__copy .eo2-swatch, .eo2-slide__copy .eo2-slide__chips { position: absolute; top: 0.35rem; right: 0.5rem; margin: 0; }
.eo2-slide__copy .eo2-slide__chips li { line-height: 1.5; }

/* ================= phones: concise introduction, proportional showcase, Quick View tabs as a clean 2 x 2 ================= */
@media (max-width: 47.99rem) {
	.eo2 .eo2-hero > .eo2-wrap { padding-block: 2rem 2.5rem; }
	html.eo2-glass .eo2 .eo2-hero > .eo2-wrap { padding-top: 2rem; }
	.eo2-hero h1 { font-size: clamp(2rem, 10vw, 2.5rem); }
  .eo2-hero__lead { margin: 0.875rem 0 1.25rem; font-size: 1rem; line-height: 1.5; }
	.eo2-hero__identity { margin: 0 0 1rem; }
	.eo2-showcase { padding-block: 0.75rem 2.5rem; }
	.eo2-showcase .eo2-facts { margin-top: 1rem; font-size: 0.875rem; }
  .eo2-js .eo2-qv .eo2-tabs__list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.25rem; overflow: visible; border-radius: var(--r-card); }
  .eo2-qv .eo2-tab { justify-content: center; border-radius: var(--r-md); text-align: center; }
}
@media (max-width: 47.99rem) and (min-width: 23rem) {
  .eo2-hero .eo2-actions { flex-wrap: nowrap; gap: 0.5rem; }
  .eo2-hero .eo2-actions > span, .eo2-hero .eo2-actions > a { flex: 1 1 0; width: auto; min-width: 0; }
  .eo2-hero .eo2-actions .eo2-btn { width: 100%; min-height: 3rem; padding: 0.6rem 0.5rem; font-size: 0.9375rem; }
}

/* ================= Impeccable gates ================= */

/* gate 1: anchors that fade in must not also shift */
.eo2-rv-on .eo2-rv--fade { transform: none; }

/* gate 2: window chrome never collides with placeholder content */
.eo2-frame[data-eo2-media="hero"] .eo2-slot, .eo2-frame[data-eo2-media="quick-search"] .eo2-slot, .eo2-frame[data-eo2-media="quick-view"] .eo2-slot, .eo2-frame[data-eo2-media="shelf"] .eo2-slot { padding-top: 2.75rem; }
@media (max-width: 23rem) {
  .eo2-frame[data-eo2-media] .eo2-slot::before { display: none; }
  .eo2-frame[data-eo2-media] .eo2-slot { padding-top: 1.5rem; }
}

/* gate 3: quieter details */
.eo2 .eo2-tab[aria-selected="true"] { box-shadow: none; }
.eo2 .eo2-ico, .eo2 .eo2-ico * { vector-effect: non-scaling-stroke; }
.eo2 .eo2-ico { stroke-width: 1.5px; }
.eo2-shelf__keys summary { min-height: 2.75rem; }
.eo2-slide__copy > p, .eo2-info__block p, .eo2-win__copy p { text-wrap: balance; }

/* ================= UI/UX Pro Max checklist pass ================= */
/* touch: no 300ms tap delay, no accidental double-tap zoom on controls; iOS keeps text size */
.eo2 { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
.eo2 a, .eo2 button, .eo2 summary, .eo2 [role="tab"] { touch-action: manipulation; -webkit-tap-highlight-color: transparent; }
/* press feedback on every clickable surface that only had hover */
.eo2-lane a:active { background: var(--surface-blue); }
.eo2-lane a:active .eo2-lane__go { scale: 0.94; }
.eo2 .eo2-rail__btn:active:not([aria-disabled="true"]) { scale: 0.94; }
.eo2-faq summary { transition: color var(--dur) var(--ease); }
.eo2-faq summary:hover { color: var(--brand); }
.eo2-faq summary:active { color: var(--brand-pressed); }
.eo2-shelf__keys summary:active { background: var(--brand-soft); }
.eo2-link:hover::after { translate: 3px 0; }
.eo2-legal a:hover { color: var(--brand-pressed); }
/* touch: 8px between adjacent targets on small screens */
@media (max-width: 47.99rem) {
  .eo2-js .eo2-qv .eo2-tabs__list { gap: 0.5rem; }
  .eo2-tabs--side .eo2-tabs__list { gap: 0.5rem; }
}
/* forced-colours / high-contrast: selection and boundaries must not rely on background colour */
@media (forced-colors: active) {
  .eo2 .eo2-tab[aria-selected="true"] { outline: 2px solid Highlight; outline-offset: -2px; }
  .eo2 .eo2-btn, .eo2 .eo2-rail__btn, .eo2-lanes, .eo2-tile, .eo2-slide, .eo2-info__block, .eo2-frame { border: 1px solid CanvasText; }
  .eo2-rail__progress i { background: Highlight; }
}

/* ================= Quick Search fits one screen: copy left, stage bleeding off the right edge ================= */
@media (min-width: 62rem) {
  .eo2 .eo2-qs > .eo2-wrap { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--s-col); align-items: center; padding-block: var(--s-section); }
  .eo2-qs__head { margin-bottom: 0; }
  .eo2-qs__media { --qs-edge: calc((100vw - min(100vw, var(--max))) / 2 + var(--gutter)); width: auto; margin: 0 calc(-1 * var(--qs-edge)) 1.5rem 0; }
  .eo2-qs .eo2-frame { border-right: 0; border-radius: var(--r-xl) 0 0 var(--r-xl); }
}

/* Quick Search: with a real capture in the frame, the capability chips sit below it instead of covering its status bar */
@media (min-width: 48rem) {
  .eo2-qs__media { margin-bottom: 4.5rem; }
  .eo2-qs__media .eo2-reach { bottom: auto; top: 100%; translate: -50% 1rem; }
}
@media (min-width: 62rem) { .eo2-qs__media { margin-bottom: 4.5rem; } }