:root {
    color-scheme: light;
    --navy-950: #041126;
    --navy-900: #071a38;
    --navy-800: #0b2447;
    --navy-700: #12345e;
    --blue-700: #0755b3;
    --blue-600: #0b63ce;
    --blue-500: #1976df;
    --cyan-500: #18a9ce;
    --cyan-100: #dff7fc;
    --amber-500: #f4a62a;
    --amber-400: #ffbd4a;
    --amber-100: #fff1d5;
    --ink: #10243d;
    --muted: #53677f;
    --line: #d8e2ed;
    --surface: #ffffff;
    --surface-soft: #f4f8fc;
    --surface-blue: #eef6ff;
    --success: #147a4c;
    --danger: #a73838;
    --focus: #ffbf3f;
    --shadow-sm: 0 5px 20px rgba(5, 28, 61, .08);
    --shadow-lg: 0 24px 70px rgba(5, 28, 61, .17);
    --radius-sm: .55rem;
    --radius-md: 1rem;
    --radius-lg: 1.45rem;
    --shell: 1180px;
    --header-h: 74px;
    --ease: 180ms ease;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-h) + 1rem);
}

body {
    margin: 0;
    min-width: 320px;
    background: var(--surface);
    color: var(--ink);
    font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.65;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

body.nav-open { overflow: hidden; }

img { display: block; max-width: 100%; }

a { color: var(--blue-700); text-underline-offset: .18em; }
a:hover { color: var(--blue-600); }

button, input { font: inherit; }

button, a { -webkit-tap-highlight-color: transparent; }

:focus-visible {
    outline: 3px solid var(--focus);
    outline-offset: 3px;
}

h1, h2, h3, p, ul, ol { margin-top: 0; }
h1, h2, h3 {
    color: var(--navy-900);
    font-weight: 800;
    letter-spacing: -.025em;
    line-height: 1.12;
}
h1 { font-size: clamp(2.35rem, 5vw, 4.9rem); }
h2 { font-size: clamp(1.85rem, 3.4vw, 3rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.42rem); }

.shell { width: min(calc(100% - 2.5rem), var(--shell)); margin-inline: auto; }
.narrow { width: min(calc(100% - 2.5rem), 820px); margin-inline: auto; }
.prose { max-width: 780px; }
.prose > * + * { margin-top: 1.15rem; }
.prose p, .prose li { color: #334a64; }
.prose h2 { margin-top: 3rem; }
.prose h3 { margin-top: 2rem; }
.prose li + li { margin-top: .55rem; }

.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.skip-link {
    position: fixed;
    z-index: 999;
    top: .75rem;
    left: .75rem;
    transform: translateY(-180%);
    padding: .65rem 1rem;
    border-radius: var(--radius-sm);
    background: var(--surface);
    box-shadow: var(--shadow-lg);
    color: var(--navy-900);
    font-weight: 800;
}
.skip-link:focus { transform: translateY(0); }

.site-header {
    position: sticky;
    z-index: 100;
    top: 0;
    height: var(--header-h);
    border-bottom: 1px solid rgba(216, 226, 237, .9);
    background: rgba(255, 255, 255, .96);
    backdrop-filter: saturate(150%) blur(16px);
    transition: box-shadow var(--ease);
}
.site-header.is-scrolled { box-shadow: 0 8px 28px rgba(7, 26, 56, .09); }
.site-header__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1.25rem; }

.brand {
    display: inline-flex;
    align-items: center;
    gap: .7rem;
    color: var(--navy-900);
    text-decoration: none;
}
.brand__mark {
    display: grid;
    place-items: center;
    width: 2.3rem;
    height: 2.3rem;
    border-radius: .7rem;
    background: linear-gradient(145deg, var(--blue-600), var(--cyan-500));
    box-shadow: 0 8px 18px rgba(11, 99, 206, .23);
    color: #fff;
    font-size: 1.05rem;
    font-weight: 900;
}
.brand__text { display: grid; line-height: 1; }
.brand__text strong { font-size: 1rem; letter-spacing: .095em; }
.brand__text small { margin-top: .32rem; color: var(--muted); font-size: .69rem; font-weight: 750; letter-spacing: .025em; }

.site-nav { display: flex; align-items: center; gap: .25rem; }
.site-nav a {
    padding: .72rem .88rem;
    border-radius: .6rem;
    color: #27415f;
    font-size: .91rem;
    font-weight: 720;
    text-decoration: none;
    transition: background var(--ease), color var(--ease);
}
.site-nav a:hover, .site-nav a[aria-current="page"] { background: var(--surface-blue); color: var(--blue-700); }
.site-nav .nav-cta { margin-left: .35rem; background: var(--blue-600); color: #fff; }
.site-nav .nav-cta:hover, .site-nav .nav-cta[aria-current="page"] { background: var(--navy-800); color: #fff; }
.nav-toggle { display: none; }

.button-row { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; }
.button-row--center { justify-content: center; }
.button {
    display: inline-flex;
    min-height: 3rem;
    align-items: center;
    justify-content: center;
    padding: .78rem 1.18rem;
    border: 1px solid transparent;
    border-radius: .72rem;
    font-size: .94rem;
    font-weight: 800;
    line-height: 1.2;
    text-decoration: none;
    cursor: pointer;
    transition: transform var(--ease), background var(--ease), border-color var(--ease), box-shadow var(--ease);
}
.button:hover { transform: translateY(-1px); }
.button--primary { background: var(--blue-600); color: #fff; box-shadow: 0 9px 22px rgba(11, 99, 206, .22); }
.button--primary:hover { background: var(--navy-800); color: #fff; }
.button--secondary { border-color: #b8cade; background: #fff; color: var(--navy-800); }
.button--secondary:hover { border-color: var(--blue-600); background: var(--surface-blue); color: var(--blue-700); }
.button--amber { background: var(--amber-500); color: var(--navy-950); box-shadow: 0 9px 22px rgba(244, 166, 42, .2); }
.button--amber:hover { background: var(--amber-400); color: var(--navy-950); }
.button--ghost-light { border-color: rgba(255,255,255,.5); background: rgba(255,255,255,.08); color: #fff; }
.button--ghost-light:hover { background: #fff; color: var(--navy-900); }
.button--whatsapp { background: #147a4c; color: #fff; }
.button--whatsapp:hover { background: #0d603a; color: #fff; }
.button--small { min-height: 2.5rem; padding: .58rem .9rem; font-size: .86rem; }
.button[disabled], .button[aria-disabled="true"] {
    border-color: #ccd6e0;
    background: #e8edf2;
    box-shadow: none;
    color: #5a6877;
    cursor: not-allowed;
    transform: none;
}

.breadcrumbs { padding-block: 1.15rem; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: .45rem; margin: 0; padding: 0; list-style: none; }
.breadcrumbs li { display: flex; align-items: center; color: var(--muted); font-size: .82rem; font-weight: 650; }
.breadcrumbs li:not(:last-child)::after { content: "/"; margin-left: .45rem; color: #a8b5c3; }
.breadcrumbs a { color: var(--blue-700); text-decoration: none; }

.hero {
    position: relative;
    min-height: clamp(640px, calc(100svh - var(--header-h)), 790px);
    display: grid;
    align-items: center;
    overflow: hidden;
    isolation: isolate;
    background: #dceaf6;
}
.hero__media, .hero__media picture, .hero__media img { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero__media { z-index: -2; }
.hero__media img { object-fit: cover; object-position: center; }
.hero::after {
    position: absolute;
    z-index: -1;
    inset: auto 0 0;
    height: 28%;
    background: linear-gradient(to top, rgba(4, 17, 38, .18), transparent);
    content: "";
    pointer-events: none;
}
.hero__inner { padding-block: 4.25rem; }
.hero__panel {
    width: min(620px, 58%);
    padding: clamp(1.65rem, 3.5vw, 3.2rem);
    border: 1px solid rgba(255,255,255,.86);
    border-radius: var(--radius-lg);
    background: rgba(255,255,255,.94);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(14px);
}
.hero__panel h1 { max-width: 12ch; margin-bottom: 1.15rem; font-size: clamp(2.55rem, 5.3vw, 4.65rem); }
.hero__lead { max-width: 55ch; margin-bottom: 1.5rem; color: #324b67; font-size: clamp(1.02rem, 1.45vw, 1.2rem); }
.hero__facts { display: flex; flex-wrap: wrap; gap: .5rem 1.05rem; margin: 1.35rem 0 0; padding: 0; list-style: none; }
.hero__facts li { position: relative; padding-left: 1rem; color: #465e77; font-size: .88rem; font-weight: 700; }
.hero__facts li::before { position: absolute; left: 0; top: .65em; width: .4rem; height: .4rem; border-radius: 50%; background: var(--cyan-500); content: ""; }

.trust-rail { border-bottom: 1px solid var(--line); background: var(--navy-900); color: #fff; }
.trust-rail__inner { display: grid; grid-template-columns: repeat(4, 1fr); }
.trust-item { padding: 1.25rem 1.3rem; border-left: 1px solid rgba(255,255,255,.13); }
.trust-item:last-child { border-right: 1px solid rgba(255,255,255,.13); }
.trust-item strong { display: block; font-size: .93rem; }
.trust-item span { display: block; margin-top: .2rem; color: #bcd2e9; font-size: .78rem; }

.section { padding-block: clamp(4rem, 8vw, 7rem); }
.section--soft { background: var(--surface-soft); }
.section--blue { background: var(--surface-blue); }
.section--navy { background: var(--navy-900); color: #fff; }
.section--navy h2, .section--navy h3 { color: #fff; }
.section--navy p { color: #c5d6e8; }
.section-head { max-width: 780px; margin-bottom: clamp(2rem, 5vw, 3.8rem); }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head h2 { margin-bottom: .85rem; }
.section-head p { margin-bottom: 0; color: var(--muted); font-size: 1.08rem; }
.section--navy .section-head p { color: #c5d6e8; }
.kicker { margin-bottom: .65rem; color: var(--blue-600); font-size: .78rem; font-weight: 900; letter-spacing: .13em; text-transform: uppercase; }
.section--navy .kicker { color: var(--cyan-500); }

.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(340px, .82fr); gap: clamp(2.5rem, 7vw, 6rem); align-items: start; }
.split--reverse > :first-child { order: 2; }
.split__content > p { color: #415971; font-size: 1.04rem; }
.split__content > * + * { margin-top: 1.15rem; }
.callout {
    padding: 1.35rem 1.45rem;
    border-left: 4px solid var(--cyan-500);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    background: var(--surface-blue);
}
.callout--amber { border-left-color: var(--amber-500); background: var(--amber-100); }
.callout strong { color: var(--navy-900); }
.callout p:last-child { margin-bottom: 0; }
.mt-1 { margin-top: 1rem; }
.mt-12 { margin-top: 1.2rem; }
.mt-065 { margin-top: .65rem; }
.notice-title { font-size: 1.45rem; }

.comparison { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow-sm); }
.comparison__row { display: grid; grid-template-columns: 1fr 1fr; }
.comparison__row + .comparison__row { border-top: 1px solid var(--line); }
.comparison__cell { padding: 1.2rem 1.35rem; }
.comparison__cell + .comparison__cell { border-left: 1px solid var(--line); }
.comparison__cell strong { display: block; color: var(--navy-900); }
.comparison__cell span { display: block; margin-top: .3rem; color: var(--muted); font-size: .9rem; }
.comparison__head { background: var(--navy-900); }
.comparison__head .comparison__cell { color: #fff; font-weight: 850; }

.feature-layout { display: grid; grid-template-columns: .9fr 1.4fr; gap: clamp(2.5rem, 7vw, 6rem); }
.feature-nav { position: sticky; top: calc(var(--header-h) + 1.5rem); align-self: start; }
.feature-nav h2 { margin-bottom: .8rem; }
.feature-nav p { color: var(--muted); }
.feature-list { border-top: 1px solid var(--line); }
.feature-row { display: grid; grid-template-columns: 3rem 1fr; gap: 1rem; padding: 1.6rem 0; border-bottom: 1px solid var(--line); }
.feature-row__number { color: var(--blue-700); font-size: 1.3rem; font-weight: 900; }
.feature-row h3 { margin-bottom: .45rem; }
.feature-row p { margin-bottom: 0; color: var(--muted); }

.course-tool { display: grid; grid-template-columns: .9fr 1.1fr; overflow: hidden; border: 1px solid rgba(255,255,255,.14); border-radius: var(--radius-lg); background: rgba(255,255,255,.055); }
.course-tool__copy { padding: clamp(1.7rem, 4vw, 3.2rem); }
.course-tool__copy p { max-width: 55ch; }
.course-tool__screen { padding: 1.5rem; background: #fff; color: var(--ink); }
.adr-browser { overflow: hidden; height: 100%; min-height: 350px; border: 1px solid var(--line); border-radius: 1rem; background: var(--surface-soft); }
.adr-browser__bar { display: flex; gap: .35rem; padding: .9rem 1rem; border-bottom: 1px solid var(--line); background: #fff; }
.adr-browser__bar span { width: .58rem; height: .58rem; border-radius: 50%; background: #c8d4df; }
.adr-browser__body { display: grid; grid-template-columns: 115px 1fr; min-height: 300px; }
.adr-browser__side { padding: 1rem .75rem; background: var(--navy-900); color: #d9e7f5; font-size: .75rem; }
.adr-browser__side strong, .adr-browser__side span { display: block; padding: .55rem .6rem; border-radius: .4rem; }
.adr-browser__side strong { margin-bottom: .35rem; background: var(--blue-600); color: #fff; }
.adr-browser__content { padding: 1.25rem; }
.adr-browser__content h3 { color: var(--navy-900); font-size: 1.05rem; }
.adr-browser__line { height: .65rem; margin-top: .7rem; border-radius: 99px; background: #dae5ef; }
.adr-browser__line:nth-child(2n) { width: 78%; }
.adr-browser__ref { display: inline-block; margin-top: 1.2rem; padding: .45rem .65rem; border-radius: .42rem; background: var(--cyan-100); color: #06667d; font-size: .74rem; font-weight: 850; }

.exam-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.exam-step { padding: clamp(1.5rem, 3vw, 2.3rem); border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow-sm); }
.exam-step__number { display: inline-grid; place-items: center; width: 2.3rem; height: 2.3rem; margin-bottom: 1.2rem; border-radius: .7rem; background: var(--navy-900); color: #fff; font-weight: 900; }
.exam-step p { color: var(--muted); }
.exam-step ul { margin-bottom: 0; padding-left: 1.2rem; color: #3a526b; }

.module-list { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow-sm); }
.module {
    display: grid;
    grid-template-columns: 4rem 1fr auto;
    gap: 1rem;
    align-items: start;
    padding: 1.25rem 1.4rem;
}
.module + .module { border-top: 1px solid var(--line); }
.module__number { color: var(--blue-600); font-size: .88rem; font-weight: 900; letter-spacing: .06em; }
.module h3 { margin: 0; font-size: 1.05rem; letter-spacing: -.01em; }
.module p { margin: .4rem 0 0; color: var(--muted); font-size: .9rem; }
.module__scope { padding: .25rem .52rem; border-radius: 99px; background: var(--surface-blue); color: var(--blue-700); font-size: .68rem; font-weight: 850; white-space: nowrap; }

.pricing-wrap { display: grid; grid-template-columns: 1fr minmax(340px, 480px); gap: clamp(2.5rem, 7vw, 6rem); align-items: center; }
.pricing-copy p { max-width: 58ch; color: #425970; }
.pricing-card { padding: clamp(1.7rem, 4vw, 2.7rem); border: 1px solid #c7d8e8; border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow-lg); }
.pricing-card h3 { margin-bottom: .4rem; }
.pricing-card__price { display: flex; align-items: baseline; gap: .75rem; margin: 1.4rem 0; }
.pricing-card__price strong { color: var(--navy-900); font-size: 3.4rem; line-height: 1; }
.pricing-card__reference { max-width: 14rem; color: var(--muted); font-size: .82rem; font-weight: 750; line-height: 1.35; }
.pricing-card__list { margin: 0 0 1.5rem; padding: 0; list-style: none; }
.pricing-card__list li { position: relative; padding: .48rem 0 .48rem 1.55rem; color: #405770; }
.pricing-card__list li::before { position: absolute; left: 0; color: var(--success); font-weight: 900; content: "✓"; }
.sales-status { margin-top: 1rem; padding: .8rem 1rem; border-radius: .65rem; background: var(--amber-100); color: #704b0a; font-size: .82rem; font-weight: 750; }
.checkout-form { display: grid; gap: .85rem; margin-top: 1.25rem; }
.checkout-form .field { display: grid; gap: .38rem; }
.checkout-form label { color: var(--navy-800); font-size: .9rem; font-weight: 750; }
.checkout-form input[type="text"], .checkout-form input[type="email"] { width: 100%; border: 1px solid #b9c9da; border-radius: .7rem; padding: .78rem .85rem; background: #fff; color: var(--ink); }
.checkout-form input:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.consent { display: flex; align-items: flex-start; gap: .55rem; color: var(--muted) !important; font-size: .82rem !important; font-weight: 550 !important; line-height: 1.45; }
.consent input { flex: 0 0 auto; margin-top: .2rem; }
.form-feedback { padding: .85rem 1rem; border: 1px solid #e4aaaa; border-radius: .7rem; background: #fff2f2; color: var(--danger); font-size: .86rem; }

.source-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: .8rem; margin: 0; padding: 0; list-style: none; }
.source-item { padding: 1.1rem 1.15rem; border: 1px solid var(--line); border-radius: .8rem; background: #fff; }
.source-item a { color: var(--navy-800); font-weight: 800; text-decoration: none; }
.source-item span { display: block; margin-top: .25rem; color: var(--muted); font-size: .78rem; }

.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary { position: relative; padding: 1.35rem 3rem 1.35rem 0; color: var(--navy-900); font-size: 1.03rem; font-weight: 800; cursor: pointer; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { position: absolute; top: 1.2rem; right: .2rem; display: grid; place-items: center; width: 2rem; height: 2rem; border-radius: 50%; background: var(--surface-blue); color: var(--blue-700); content: "+"; transition: transform var(--ease); }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item__answer { max-width: 760px; padding: 0 2.5rem 1.35rem 0; color: var(--muted); }
.faq-item__answer p { margin-bottom: 0; }

.cta-band { padding-block: 3rem; background: linear-gradient(120deg, var(--navy-900), #0d3b68); color: #fff; }
.cta-band__inner { display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.cta-band h2 { margin-bottom: .5rem; color: #fff; font-size: clamp(1.6rem, 3vw, 2.35rem); }
.cta-band p { max-width: 660px; margin-bottom: 0; color: #c8daeb; }

.review-stamp { display: inline-flex; align-items: center; gap: .45rem; margin: 1.2rem 0 0; color: #536b84; font-size: .78rem; font-weight: 750; }
.review-stamp span { display: grid; place-items: center; width: 1.4rem; height: 1.4rem; border-radius: 50%; background: #def5e8; color: var(--success); }

.seo-hero { padding: clamp(3.2rem, 8vw, 6.8rem) 0 clamp(3.8rem, 8vw, 7rem); border-bottom: 1px solid var(--line); background: radial-gradient(circle at 85% 5%, #dff7fc 0, transparent 30%), linear-gradient(180deg, #f5f9fd 0%, #fff 100%); }
.seo-hero__inner { display: grid; grid-template-columns: 1.35fr .65fr; gap: clamp(2.5rem, 7vw, 6rem); align-items: end; }
.seo-hero h1 { max-width: 14ch; margin-bottom: 1rem; font-size: clamp(2.35rem, 5vw, 4.25rem); }
.seo-hero__lead { max-width: 62ch; color: #405a75; font-size: 1.1rem; }
.seo-hero__aside { padding: 1.35rem; border: 1px solid var(--line); border-radius: var(--radius-md); background: #fff; box-shadow: var(--shadow-sm); }
.seo-hero__aside strong { display: block; margin-bottom: .45rem; color: var(--navy-900); }
.seo-hero__aside p { margin-bottom: 0; color: var(--muted); font-size: .9rem; }

.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: clamp(2.5rem, 7vw, 6rem); align-items: start; }
.article-aside { position: sticky; top: calc(var(--header-h) + 1.5rem); }
.toc { padding: 1.1rem 1.15rem; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface-soft); }
.toc strong { display: block; margin-bottom: .6rem; color: var(--navy-900); }
.toc ul { margin: 0; padding: 0; list-style: none; }
.toc li + li { margin-top: .45rem; }
.toc a { color: #405a73; font-size: .84rem; font-weight: 700; text-decoration: none; }
.toc a:hover { color: var(--blue-600); }
.aside-card { margin-top: 1rem; padding: 1.15rem; border-radius: var(--radius-md); background: var(--navy-900); color: #fff; }
.aside-card h2 { margin-bottom: .5rem; color: #fff; font-size: 1.15rem; }
.aside-card p { color: #c4d6e8; font-size: .87rem; }

.info-table-wrap { overflow-x: auto; margin: 1.6rem 0; border: 1px solid var(--line); border-radius: var(--radius-md); }
.info-table { width: 100%; border-collapse: collapse; background: #fff; font-size: .92rem; }
.info-table th, .info-table td { padding: .9rem 1rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.info-table tr:last-child th, .info-table tr:last-child td { border-bottom: 0; }
.info-table th { width: 34%; background: var(--surface-soft); color: var(--navy-900); }

.check-list { margin: 1.25rem 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding: .52rem 0 .52rem 1.75rem; }
.check-list li::before { position: absolute; left: 0; top: .55rem; display: grid; place-items: center; width: 1.15rem; height: 1.15rem; border-radius: 50%; background: var(--cyan-100); color: #087991; font-size: .72rem; font-weight: 900; content: "✓"; }
.warning-list li::before { background: var(--amber-100); color: #885a08; content: "!"; }

.related-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: .8rem; margin-top: 2rem; }
.related-link { padding: 1rem 1.1rem; border: 1px solid var(--line); border-radius: .75rem; color: var(--navy-800); font-size: .9rem; font-weight: 800; text-decoration: none; }
.related-link:hover { border-color: var(--blue-500); background: var(--surface-blue); }

.demo-shell { padding-block: clamp(2.5rem, 6vw, 5rem); }
.demo-intro { max-width: 830px; margin-bottom: 2rem; }
.demo-intro p { color: var(--muted); }
.demo-app { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow-lg); }
.demo-progress { height: .45rem; background: #e5edf5; }
.demo-progress span { display: block; width: 0; height: 100%; background: linear-gradient(90deg, var(--blue-600), var(--cyan-500)); transition: width 280ms ease; }
.demo-progress .progress-0 { width: 0; }
.demo-progress .progress-10 { width: 10%; }
.demo-progress .progress-20 { width: 20%; }
.demo-progress .progress-30 { width: 30%; }
.demo-progress .progress-40 { width: 40%; }
.demo-progress .progress-50 { width: 50%; }
.demo-progress .progress-60 { width: 60%; }
.demo-progress .progress-70 { width: 70%; }
.demo-progress .progress-80 { width: 80%; }
.demo-progress .progress-90 { width: 90%; }
.demo-progress .progress-100 { width: 100%; }
.demo-app__head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem 1.4rem; border-bottom: 1px solid var(--line); }
.demo-app__head strong { color: var(--navy-900); }
.demo-app__head span { color: var(--muted); font-size: .82rem; font-weight: 750; }
.demo-question { min-height: 410px; padding: clamp(1.4rem, 5vw, 3.3rem); }
.demo-question fieldset { margin: 0; padding: 0; border: 0; }
.demo-question legend { max-width: 850px; margin-bottom: 1.5rem; color: var(--navy-900); font-size: clamp(1.25rem, 2.6vw, 1.8rem); font-weight: 850; line-height: 1.3; }
.answer-options { display: grid; gap: .72rem; }
.answer-option { position: relative; display: flex; align-items: flex-start; gap: .8rem; padding: 1rem 1.1rem; border: 1px solid var(--line); border-radius: .75rem; background: #fff; color: #334d67; cursor: pointer; transition: border-color var(--ease), background var(--ease); }
.answer-option:hover { border-color: #8cb6e2; background: var(--surface-blue); }
.answer-option input { margin-top: .28rem; accent-color: var(--blue-600); }
.answer-option.is-correct { border-color: #4fa97b; background: #eefaf3; }
.answer-option.is-incorrect { border-color: #d58b8b; background: #fff2f2; }
.answer-feedback { margin-top: 1.25rem; padding: 1rem 1.1rem; border-radius: .75rem; background: var(--surface-soft); }
.answer-feedback strong { display: block; margin-bottom: .35rem; }
.answer-feedback.is-correct-feedback strong { color: var(--success); }
.answer-feedback.is-incorrect-feedback strong { color: var(--danger); }
.answer-feedback p { margin-bottom: .45rem; color: #415970; }
.answer-feedback small { color: var(--muted); }
.demo-actions { display: flex; justify-content: flex-end; gap: .75rem; padding: 1rem 1.4rem; border-top: 1px solid var(--line); background: var(--surface-soft); }
.demo-results { padding: clamp(1.6rem, 5vw, 3.5rem); text-align: center; }
.score-ring { display: grid; place-items: center; width: 9rem; height: 9rem; margin: 0 auto 1.4rem; border-radius: 50%; background: conic-gradient(var(--blue-600) var(--score-angle, 0deg), #e2eaf2 0); }
.score-ring.score-0 { --score-angle: 0deg; }
.score-ring.score-10 { --score-angle: 36deg; }
.score-ring.score-20 { --score-angle: 72deg; }
.score-ring.score-30 { --score-angle: 108deg; }
.score-ring.score-40 { --score-angle: 144deg; }
.score-ring.score-50 { --score-angle: 180deg; }
.score-ring.score-60 { --score-angle: 216deg; }
.score-ring.score-70 { --score-angle: 252deg; }
.score-ring.score-80 { --score-angle: 288deg; }
.score-ring.score-90 { --score-angle: 324deg; }
.score-ring.score-100 { --score-angle: 360deg; }
.score-ring__inner { display: grid; place-items: center; width: 7.2rem; height: 7.2rem; border-radius: 50%; background: #fff; }
.score-ring strong { color: var(--navy-900); font-size: 2rem; }
.demo-results p { max-width: 650px; margin-inline: auto; color: var(--muted); }

.case-demo { margin-top: 2rem; padding: clamp(1.4rem, 4vw, 2.5rem); border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface-soft); }
.case-demo h2 { font-size: clamp(1.55rem, 3vw, 2.2rem); }
.case-demo__statement { padding: 1.1rem 1.2rem; border-left: 4px solid var(--blue-600); background: #fff; }
.case-demo ol { color: #405871; }
.case-solution { margin-top: 1rem; padding: 1.2rem; border-radius: .8rem; background: #fff; }
.case-solution[hidden] { display: none; }
.no-script { margin-top: 1rem; }

.legal-hero { padding: 3.5rem 0; background: var(--navy-900); }
.legal-hero h1 { margin-bottom: .8rem; color: #fff; font-size: clamp(2.15rem, 5vw, 3.8rem); }
.legal-hero p { max-width: 720px; margin-bottom: 0; color: #c3d6e8; }
.legal-page { padding-block: 4rem 6rem; }
.legal-page h2 { margin-top: 2.5rem; font-size: 1.65rem; }
.legal-page h3 { margin-top: 1.7rem; font-size: 1.15rem; }
.legal-page p, .legal-page li { color: #384f68; }
.legal-alert { padding: 1.1rem 1.2rem; border: 1px solid #efd49b; border-radius: .8rem; background: var(--amber-100); color: #66450d; }

.site-footer { padding-top: 4rem; background: var(--navy-950); color: #c3d3e4; }
.site-footer__grid { display: grid; grid-template-columns: 1.3fr .8fr .9fr .9fr; gap: clamp(1.5rem, 4vw, 3.6rem); }
.brand--footer { color: #fff; }
.brand--footer .brand__text small { color: #9fb8d0; }
.site-footer__brand p { max-width: 42ch; margin-top: 1rem; color: #9fb3c8; font-size: .88rem; }
.site-footer h2 { margin: .45rem 0 1rem; color: #fff; font-size: .9rem; letter-spacing: .04em; }
.site-footer ul { margin: 0; padding: 0; list-style: none; }
.site-footer li + li { margin-top: .55rem; }
.site-footer a, .footer-link-button { color: #b8cce0; font-size: .86rem; text-decoration: none; }
.site-footer a:hover, .footer-link-button:hover { color: #fff; }
.footer-link-button { padding: 0; border: 0; background: none; cursor: pointer; }
.site-footer__bottom { display: flex; justify-content: space-between; gap: 2rem; margin-top: 3rem; padding: 1.25rem 0 1.5rem; border-top: 1px solid rgba(255,255,255,.12); }
.site-footer__bottom p { margin: 0; color: #88a1ba; font-size: .75rem; }
.footer-version { color: var(--cyan-500) !important; font-weight: 750; }
.footer-note { color: #8ea7c0; font-size: .78rem; }

.cookie-dialog { width: min(calc(100% - 2rem), 580px); padding: 0; border: 0; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); color: var(--ink); }
.cookie-dialog::backdrop { background: rgba(4,17,38,.66); backdrop-filter: blur(4px); }
.cookie-dialog form { padding: 1.5rem; }
.cookie-dialog__head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.cookie-dialog h2 { margin-bottom: 0; font-size: 1.4rem; }
.cookie-dialog p { color: var(--muted); }
.icon-button { display: grid; place-items: center; width: 2.4rem; height: 2.4rem; border: 0; border-radius: 50%; background: var(--surface-soft); color: var(--navy-900); font-size: 1.5rem; cursor: pointer; }
.cookie-choice { margin: 1rem 0 1.3rem; padding: 1rem; border: 1px solid var(--line); border-radius: .75rem; }
.cookie-choice div { display: flex; justify-content: space-between; gap: 1rem; }
.cookie-choice div span { color: var(--success); font-size: .78rem; font-weight: 800; }
.cookie-choice p { margin: .35rem 0 0; font-size: .82rem; }

@media (max-width: 980px) {
    :root { --header-h: 68px; }
    .nav-toggle {
        display: grid;
        place-content: center;
        gap: .28rem;
        width: 2.8rem;
        height: 2.8rem;
        border: 1px solid var(--line);
        border-radius: .7rem;
        background: #fff;
        cursor: pointer;
    }
    .nav-toggle span:not(.sr-only) { display: block; width: 1.25rem; height: 2px; background: var(--navy-900); transition: transform var(--ease), opacity var(--ease); }
    .nav-toggle[aria-expanded="true"] span:nth-of-type(2) { transform: translateY(6px) rotate(45deg); }
    .nav-toggle[aria-expanded="true"] span:nth-of-type(3) { opacity: 0; }
    .nav-toggle[aria-expanded="true"] span:nth-of-type(4) { transform: translateY(-6px) rotate(-45deg); }
    .site-nav {
        position: fixed;
        top: var(--header-h);
        left: 0;
        right: 0;
        display: grid;
        gap: .2rem;
        padding: 1rem 1.25rem 1.3rem;
        border-bottom: 1px solid var(--line);
        background: #fff;
        box-shadow: var(--shadow-lg);
        transform: translateY(-140%);
        visibility: hidden;
        transition: transform 240ms ease, visibility 240ms;
    }
    .site-nav.is-open { transform: translateY(0); visibility: visible; }
    .site-nav a { padding: .9rem 1rem; }
    .site-nav .nav-cta { margin: .4rem 0 0; text-align: center; }
    .hero { min-height: 720px; align-items: end; }
    .hero__panel { width: min(650px, 82%); }
    .hero__media img { object-position: 62% center; }
    .trust-rail__inner { grid-template-columns: 1fr 1fr; }
    .trust-item:nth-child(2) { border-right: 1px solid rgba(255,255,255,.13); }
    .trust-item:nth-child(n+3) { border-top: 1px solid rgba(255,255,255,.13); }
    .split, .feature-layout, .course-tool, .pricing-wrap, .seo-hero__inner, .article-layout { grid-template-columns: 1fr; }
    .split--reverse > :first-child { order: initial; }
    .feature-nav, .article-aside { position: static; }
    .course-tool__screen { min-height: 390px; }
    .site-footer__grid { grid-template-columns: 1.25fr 1fr 1fr; }
    .site-footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
    .shell, .narrow { width: min(calc(100% - 1.5rem), var(--shell)); }
    .brand__text small { display: none; }
    .hero { min-height: 710px; }
    .hero__inner { width: 100%; padding: 1.2rem 0 2rem; }
    .hero__panel { width: 100%; padding: 1.4rem; border-radius: 1rem; background: rgba(255,255,255,.96); }
    .hero__panel h1 { font-size: clamp(2.15rem, 11vw, 3.35rem); }
    .hero__media img { object-position: center 18%; }
    .hero__facts { display: grid; }
    .button-row { align-items: stretch; }
    .button-row .button { flex: 1 1 100%; }
    .trust-rail__inner { grid-template-columns: 1fr; }
    .trust-item, .trust-item:last-child, .trust-item:nth-child(2) { border: 0; border-top: 1px solid rgba(255,255,255,.13); }
    .trust-item:first-child { border-top: 0; }
    .comparison__row { grid-template-columns: 1fr; }
    .comparison__cell + .comparison__cell { border-left: 0; border-top: 1px solid var(--line); }
    .comparison__head .comparison__cell + .comparison__cell { border-top-color: rgba(255,255,255,.14); }
    .course-tool__screen { padding: .8rem; }
    .adr-browser__body { grid-template-columns: 85px 1fr; }
    .exam-layout, .source-list, .related-links { grid-template-columns: 1fr; }
    .module { grid-template-columns: 2.6rem 1fr; gap: .7rem; padding: 1rem; }
    .module__scope { grid-column: 2; justify-self: start; }
    .pricing-wrap { gap: 2rem; }
    .pricing-card { padding: 1.35rem; }
    .pricing-card__price strong { font-size: 2.8rem; }
    .cta-band__inner, .site-footer__bottom { flex-direction: column; align-items: stretch; }
    .seo-hero { padding-top: 2.5rem; }
    .seo-hero h1 { font-size: clamp(2.15rem, 10vw, 3.2rem); }
    .article-layout { gap: 2rem; }
    .info-table th, .info-table td { min-width: 150px; padding: .75rem; }
    .demo-question { min-height: 480px; }
    .demo-actions { flex-direction: column; }
    .demo-actions .button { width: 100%; }
    .site-footer__grid { grid-template-columns: 1fr; }
    .cookie-dialog form { padding: 1.15rem; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

@media print {
    .site-header, .site-footer, .breadcrumbs, .cta-band, .button-row, .cookie-dialog { display: none !important; }
    body { color: #000; font-size: 11pt; }
    .section, .legal-page { padding: 1rem 0; }
    a { color: #000; text-decoration: none; }
}