:root {
    --ink-950: #07111F;
    --ink-900: #0F172A;
    --ink-800: #16233A;
    --ink-700: #27364F;
    --slate-700: #334155;
    --slate-600: #475569;
    --slate-500: #64748B;
    --slate-400: #94A3B8;
    --slate-300: #CBD5E1;
    --slate-200: #E2E8F0;
    --slate-100: #F1F5F9;
    --slate-50: #F8FAFC;
    --surface: #FFFFFF;
    --surface-soft: #F7FAFF;
    --orange-700: #C2410C;
    --orange-650: #D94C12;
    --orange-600: #EA580C;
    --orange-500: #F97316;
    --orange-400: #FB923C;
    --orange-100: #FFEDD5;
    --green-700: #15803D;
    --green-100: #DCFCE7;
    --red-700: #B91C1C;
    --red-100: #FEE2E2;
    --blue-700: #1D4ED8;
    --blue-100: #DBEAFE;
    --container: 1184px;
    --radius-xs: 8px;
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 18px;
    --radius-xl: 26px;
    --shadow-sm: 0 8px 18px rgba(15, 23, 42, .07);
    --shadow-card: 0 18px 44px rgba(15, 23, 42, .08);
    --shadow-elevated: 0 24px 70px rgba(15, 23, 42, .14);
    --focus-ring: 0 0 0 4px rgba(249, 115, 22, .20);
}

* { box-sizing: border-box; }
html {
    scroll-behavior: smooth;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
body {
    margin: 0;
    min-height: 100vh;
    color: var(--ink-900);
    background: var(--surface);
    font-family: "Segoe UI Variable Text", "Segoe UI Variable", "Segoe UI", Aptos, Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.55;
}
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3, p { margin-top: 0; }
h1, h2 {
    font-family: "Segoe UI Variable Display", "Segoe UI Variable", "Segoe UI", Aptos, Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--ink-950);
    letter-spacing: -.035em;
    line-height: 1.08;
}
h1 { margin: 14px 0 17px; font-size: clamp(2.35rem, 4.6vw, 3.55rem); font-weight: 760; }
h2 { margin: 0 0 14px; font-size: clamp(1.85rem, 3.3vw, 2.65rem); font-weight: 760; }
h3 { margin: 0 0 8px; color: var(--ink-950); font-size: 1.08rem; font-weight: 760; letter-spacing: -.012em; }
p { margin-bottom: 0; color: var(--slate-600); line-height: 1.72; }
strong, b { font-weight: 760; }
.container { width: min(100% - 48px, var(--container)); margin-inline: auto; }
.narrow { max-width: 860px; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 60;
    background: rgba(255, 255, 255, .96);
    border-bottom: 1px solid rgba(226, 232, 240, .88);
    box-shadow: 0 1px 0 rgba(15, 23, 42, .02);
    backdrop-filter: blur(18px);
}
.nav-wrap {
    min-height: 74px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
    outline: none;
}
.brand:focus-visible { border-radius: 14px; box-shadow: var(--focus-ring); }
.brand-logo { width: 46px; height: 46px; flex: 0 0 auto; filter: drop-shadow(0 11px 18px rgba(249, 115, 22, .22)); }
.brand-copy { display: grid; line-height: 1.05; min-width: 0; }
.brand-copy strong { color: var(--ink-950); font-size: 1.05rem; font-weight: 760; letter-spacing: -.015em; }
.brand-copy small {
    max-width: 250px;
    margin-top: 4px;
    color: var(--slate-500);
    font-size: .735rem;
    font-weight: 650;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.nav-links, .admin-nav { display: flex; align-items: center; justify-content: flex-end; gap: 6px; flex-wrap: wrap; }
.nav-links a, .admin-nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 0 12px;
    border-radius: 10px;
    color: var(--slate-700);
    font-size: .92rem;
    font-weight: 650;
    line-height: 1;
    transition: background .18s ease, color .18s ease, transform .18s ease;
}
.nav-links a:hover, .admin-nav a:hover { color: var(--ink-950); background: var(--slate-50); }
.nav-download-link {
    min-height: 40px !important;
    padding: 0 16px !important;
    color: #FFFFFF !important;
    border-radius: 10px !important;
    background: linear-gradient(135deg, var(--orange-500), var(--orange-650));
    box-shadow: 0 12px 28px rgba(249, 115, 22, .28);
    position: relative;
    overflow: hidden;
}
.nav-download-link:hover { transform: translateY(-1px); box-shadow: 0 16px 36px rgba(249, 115, 22, .34); }

.hero {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    padding: 60px 0 68px;
    background:
        radial-gradient(circle at 88% 12%, rgba(249, 115, 22, .13), transparent 30%),
        radial-gradient(circle at 8% 88%, rgba(37, 99, 235, .08), transparent 30%),
        linear-gradient(180deg, #FFFFFF 0%, #F7FAFF 100%);
}
.hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, .92fr) minmax(430px, 1.08fr);
    gap: 52px;
    align-items: center;
}
.hero-copy { max-width: 620px; }
.hero-lead { max-width: 575px; margin-bottom: 0; color: var(--slate-600); font-size: clamp(1.02rem, 1.7vw, 1.14rem); line-height: 1.65; }
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 30px;
    padding: 0 11px;
    border: 1px solid rgba(249, 115, 22, .18);
    border-radius: 999px;
    color: var(--orange-700);
    background: rgba(249, 115, 22, .08);
    font-size: .72rem;
    font-weight: 760;
    letter-spacing: .11em;
    text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; box-shadow: 0 0 0 4px rgba(249, 115, 22, .12); }
.hero-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin: 26px 0 16px; }
.btn {
    position: relative;
    z-index: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 48px;
    padding: 0 20px;
    border: 1px solid transparent;
    border-radius: 12px;
    color: var(--ink-900);
    background: #FFFFFF;
    box-shadow: none;
    font-size: .96rem;
    font-weight: 720;
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    overflow: hidden;
    transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease, color .18s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:focus-visible { outline: 0; box-shadow: var(--focus-ring); }
.btn-primary {
    color: #FFFFFF;
    background: linear-gradient(135deg, #FF8A35 0%, var(--orange-500) 46%, #E05216 100%);
    box-shadow: 0 16px 36px rgba(249, 115, 22, .28), inset 0 1px 0 rgba(255, 255, 255, .26);
}
.btn-primary:hover { box-shadow: 0 20px 48px rgba(249, 115, 22, .36), inset 0 1px 0 rgba(255, 255, 255, .26); }
.btn-secondary { color: var(--ink-900); background: #FFFFFF; border-color: var(--slate-200); box-shadow: 0 10px 26px rgba(15, 23, 42, .06); }
.btn-secondary:hover { border-color: var(--slate-300); box-shadow: 0 14px 34px rgba(15, 23, 42, .09); }
.btn-download {
    min-height: 56px;
    padding: 0 24px 0 16px;
    border-radius: 13px;
    border: 1px solid rgba(255, 255, 255, .16);
    gap: 13px;
    transform: translateZ(0);
}
.btn-download::before, .nav-download-link::before, .download-final-button::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    transform: translateX(-125%);
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .32), transparent);
    animation: downloadShine 3.1s ease-in-out infinite;
}
.download-icon {
    position: relative;
    z-index: 1;
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    border-radius: 9px;
    color: #FFFFFF;
    background: rgba(255, 255, 255, .18);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .22);
}
.download-icon svg { width: 20px; height: 20px; }
.download-copy { position: relative; z-index: 1; display: grid; gap: 4px; text-align: left; }
.download-copy strong { color: inherit; font-size: 1rem; line-height: 1; }
.download-copy small { color: rgba(255, 255, 255, .82); font-size: .72rem; font-weight: 650; letter-spacing: .02em; }
.download-animated { animation: downloadGlow 2.7s ease-in-out infinite; }
.download-final-button { position: relative; color: #FFFFFF; background: linear-gradient(135deg, #FF8A35, var(--orange-600)); box-shadow: 0 16px 36px rgba(249, 115, 22, .30); }
@keyframes downloadShine { 0%, 46% { transform: translateX(-125%); } 68%, 100% { transform: translateX(125%); } }
@keyframes downloadGlow { 0%, 100% { filter: saturate(1); } 50% { filter: saturate(1.12) brightness(1.02); } }

.platform-card {
    display: grid;
    gap: 7px;
    max-width: 575px;
    margin: 15px 0 15px;
    padding: 14px 16px;
    border: 1px solid var(--slate-200);
    border-left: 4px solid var(--green-700);
    border-radius: var(--radius-md);
    background: #FFFFFF;
    box-shadow: var(--shadow-sm);
}
.platform-card.blocked { border-left-color: var(--red-700); background: #FFFDFD; }
.platform-card strong, .platform-card span { display: block; }
.platform-card strong { color: var(--ink-950); font-size: .98rem; }
.platform-card span { color: var(--slate-600); line-height: 1.55; }
.status-pill {
    width: max-content;
    min-height: 24px;
    display: inline-flex;
    align-items: center;
    padding: 0 9px;
    border: 1px solid #BBF7D0;
    border-radius: 999px;
    color: #166534;
    background: var(--green-100);
    font-size: .66rem;
    font-weight: 760;
    letter-spacing: .08em;
    text-transform: uppercase;
}
.status-pill.blocked { color: var(--red-700); background: var(--red-100); border-color: #FECACA; }
.mandatory-note {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 11px;
    align-items: start;
    max-width: 575px;
    margin: 16px 0 15px;
    padding: 14px 15px;
    border: 1px solid #FED7AA;
    border-radius: var(--radius-md);
    background: #FFF7ED;
}
.mandatory-note::before {
    content: "!";
    width: 26px;
    height: 26px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: #FFFFFF;
    background: var(--orange-500);
    font-size: .82rem;
    font-weight: 800;
    box-shadow: 0 8px 18px rgba(249, 115, 22, .22);
}
.mandatory-note strong, .mandatory-note span { display: block; line-height: 1.52; }
.mandatory-note strong { color: var(--ink-950); }
.mandatory-note span { color: var(--slate-700); }
.step-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.step-row span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 34px;
    padding: 0 11px;
    border: 1px solid var(--slate-200);
    border-radius: 999px;
    color: var(--slate-700);
    background: #FFFFFF;
    font-size: .89rem;
    font-weight: 650;
}
.step-row b, .install-number {
    width: 22px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: #FFFFFF;
    background: var(--orange-500);
    font-size: .74rem;
    font-weight: 800;
}

.hero-video-card, .install-card, .reader-showcase, .requirement-card, .content-card, .chapter-card, .system-card, .cta-card, .feature-card {
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-xl);
    background: #FFFFFF;
    box-shadow: var(--shadow-card);
}
.hero-video-card {
    padding: 14px;
    overflow: hidden;
    box-shadow: var(--shadow-elevated);
}
.video-card-head, .video-caption-line {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
    padding: 3px 4px 12px;
}
.video-card-head span, .video-card-head strong, .video-caption-line span {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 10px;
    border-radius: 999px;
    font-size: .73rem;
    font-weight: 760;
    line-height: 1;
}
.video-card-head span { color: var(--orange-700); background: #FFF7ED; border: 1px solid #FED7AA; text-transform: uppercase; letter-spacing: .08em; }
.video-card-head strong { color: #166534; background: #F0FDF4; border: 1px solid #BBF7D0; }
.tutorial-video {
    width: 100%;
    display: block;
    aspect-ratio: 16 / 9;
    border: 1px solid rgba(15, 23, 42, .10);
    border-radius: 18px;
    background: var(--ink-900);
    box-shadow: 0 12px 32px rgba(15, 23, 42, .10);
}
.video-caption-line { justify-content: flex-start; padding: 12px 4px 0; }
.video-caption-line span { color: var(--ink-900); background: var(--slate-50); border: 1px solid var(--slate-200); }
.large-video-card { align-self: start; }

.section { padding: 70px 0; }
.section-light { background: var(--surface-soft); }
.section-heading { max-width: 760px; margin-bottom: 32px; }
.section-heading.centered { margin-inline: auto; text-align: center; }
.section-heading p, .product-copy p, .requirements-grid p, .page-hero p { font-size: 1rem; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-card { padding: 26px; min-height: 190px; transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
.feature-card:hover { transform: translateY(-2px); border-color: #F7C59C; box-shadow: 0 22px 52px rgba(15, 23, 42, .10); }
.feature-icon {
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    border: 1px solid #FED7AA;
    border-radius: 14px;
    color: var(--orange-700);
    background: #FFF7ED;
    font-size: 1.02rem;
    font-weight: 800;
    letter-spacing: .02em;
}
.feature-card p, .install-card p { font-size: .96rem; }
.section-steps { background: #FFFFFF; }
.install-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.install-card { padding: 24px; min-height: 214px; }
.install-card.featured { border-color: rgba(249, 115, 22, .42); background: linear-gradient(180deg, #FFFFFF, #FFF7ED); box-shadow: 0 18px 44px rgba(249, 115, 22, .13); }
.install-card h3 { margin-top: 17px; }
.product-section { background: linear-gradient(180deg, #FFFFFF, var(--surface-soft)); }
.product-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 36px; align-items: center; }
.feature-list { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 22px; }
.feature-list span {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 0 11px;
    border: 1px solid var(--slate-200);
    border-radius: 999px;
    color: var(--ink-900);
    background: #FFFFFF;
    font-size: .89rem;
    font-weight: 650;
}
.reader-showcase { padding: 18px; overflow: hidden; }
.showcase-toolbar { display: flex; align-items: center; gap: 13px; padding: 0 2px 16px; border-bottom: 1px solid var(--slate-200); }
.showcase-logo { width: 48px; height: 48px; }
.showcase-toolbar strong, .showcase-toolbar span { display: block; }
.showcase-toolbar span { margin-top: 2px; color: var(--slate-500); font-size: .86rem; font-weight: 650; }
.showcase-body { display: grid; grid-template-columns: .8fr .8fr 1.1fr; gap: 12px; padding-top: 16px; }
.document-card, .open-preview { min-height: 154px; padding: 16px; border: 1px solid var(--slate-200); border-radius: 18px; background: var(--slate-50); }
.document-card b { display: inline-flex; margin-bottom: 24px; padding: 5px 8px; border-radius: 8px; font-size: .72rem; letter-spacing: .08em; }
.pdf-card b { color: #991B1B; background: #FEE2E2; }
.xls-card b { color: #166534; background: #DCFCE7; }
.document-card strong, .document-card span, .open-preview span { display: block; }
.document-card span, .open-preview span { margin-top: 5px; color: var(--slate-500); font-weight: 650; }
.open-preview em { display: block; height: 10px; margin: 16px 0 0; border-radius: 99px; background: var(--slate-200); }
.open-preview em.short { width: 62%; }
.requirements-public { background: #FFFFFF; }
.requirements-grid { display: grid; grid-template-columns: 1.15fr .75fr .75fr; gap: 18px; align-items: stretch; }
.system-card { display: grid; align-content: center; gap: 8px; padding: 24px; }
.system-card strong { color: var(--ink-950); font-size: 1.1rem; }
.system-card span { color: var(--slate-700); font-weight: 650; }
.system-card.ok { border-color: rgba(22, 163, 74, .26); background: #F0FDF4; }
.system-card.no { border-color: rgba(153, 27, 27, .20); background: #FEF2F2; }
.cta-section { background: var(--ink-950); }
.cta-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 34px;
    color: #FFFFFF;
    border-color: rgba(255, 255, 255, .10);
    background:
        radial-gradient(circle at 92% 18%, rgba(249, 115, 22, .24), transparent 35%),
        linear-gradient(135deg, var(--ink-900), var(--ink-950));
    box-shadow: none;
}
.cta-card h2 { color: #FFFFFF; }
.cta-card p { color: rgba(255, 255, 255, .74); }
.cta-card .eyebrow { color: #FDBA74; border-color: rgba(253, 186, 116, .22); background: rgba(249, 115, 22, .15); }

.page-hero { padding: 70px 0 50px; background: linear-gradient(180deg, #FFFFFF, var(--surface-soft)); }
.blocked-hero { min-height: 54vh; display: flex; align-items: center; }
.requirement-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.requirement-card, .content-card, .chapter-card { padding: 26px; }
.requirement-card h2, .content-card h2, .chapter-card h2 { font-size: 1.48rem; }
.requirement-card ul { margin: 0; padding-left: 20px; color: var(--slate-700); line-height: 1.85; }
.requirement-card.ok { border-color: rgba(22, 163, 74, .26); }
.requirement-card.block { border-color: rgba(153, 27, 27, .20); }
.requirement-card.important { border-color: rgba(249, 115, 22, .34); background: #FFF7ED; }
.content-card { max-width: 900px; }
.content-card h2:not(:first-child) { margin-top: 28px; }
.video-page-grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(320px, .65fr); gap: 28px; align-items: start; }
.chapter-list { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 10px; }
.chapter-list li { padding: 12px 14px; border-radius: 14px; background: var(--slate-50); border: 1px solid var(--slate-200); }
.chapter-list strong, .chapter-list span { display: block; }
.chapter-list span { margin-top: 3px; color: var(--slate-700); line-height: 1.5; }
.download-actions { display: grid; gap: 8px; justify-items: start; }
.download-actions small { color: var(--slate-500); font-weight: 650; }
.page-download-actions { justify-items: start; margin-top: 20px; }
.page-download-actions small { text-align: left; }

.site-footer { padding: 44px 0; color: rgba(255, 255, 255, .76); background: var(--ink-950); }
.site-footer .brand-copy strong { color: #FFFFFF; }
.site-footer .brand-copy small, .site-footer p, .footer-muted { color: rgba(255, 255, 255, .62); }
.footer-grid { display: grid; grid-template-columns: 1.35fr .8fr .8fr; gap: 32px; }
.footer-grid p { max-width: 430px; }
.footer-grid strong, .footer-grid a, .footer-grid span { display: block; }
.footer-grid strong { margin-bottom: 12px; color: #FFFFFF; }
.footer-grid a, .footer-grid span { margin: 9px 0; }
.footer-download-link { color: #FDBA74; font-weight: 760; }
.footer-download-link:hover { color: #FFFFFF; }

.download-modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 22px;
    background: rgba(7, 17, 31, .66);
    backdrop-filter: blur(10px);
}
.download-modal-backdrop.open { display: flex; }
body.modal-open { overflow: hidden; }
.download-modal { position: relative; width: min(100%, 560px); border-radius: 24px; background: #FFFFFF; box-shadow: 0 30px 84px rgba(0, 0, 0, .30); overflow: hidden; }
.modal-close { position: absolute; top: 14px; right: 14px; z-index: 2; width: 36px; height: 36px; border: 0; border-radius: 50%; color: var(--ink-900); background: var(--slate-100); cursor: pointer; font-size: 1.2rem; font-weight: 760; }
.download-modal-head { padding: 28px 28px 16px; background: radial-gradient(circle at 92% 12%, rgba(249, 115, 22, .14), transparent 30%), #FFFFFF; }
.download-modal-head span { color: var(--orange-700); font-size: .72rem; font-weight: 760; letter-spacing: .1em; text-transform: uppercase; }
.download-modal h2 { margin: 8px 38px 10px 0; font-size: clamp(1.55rem, 3.2vw, 2.05rem); }
.modal-steps { display: grid; gap: 8px; padding: 0 28px 16px; }
.modal-steps div { display: grid; grid-template-columns: auto 1fr; gap: 10px; align-items: center; padding: 11px; border: 1px solid var(--slate-200); border-radius: 14px; background: var(--slate-50); font-weight: 720; }
.modal-steps b { width: 26px; height: 26px; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; color: #FFFFFF; background: var(--orange-500); }
.modal-confirm { margin: 0 28px 16px; padding: 13px; border: 1px solid #FED7AA; border-radius: 14px; background: #FFF7ED; display: flex; align-items: flex-start; gap: 10px; color: var(--ink-900); font-weight: 720; line-height: 1.5; cursor: pointer; }
.modal-confirm input { width: 17px; height: 17px; flex: 0 0 auto; margin-top: 3px; }
.download-honeypot { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }
.modal-status { margin: 0 28px 16px !important; padding: 11px 13px; border: 1px solid var(--slate-200); border-radius: 14px; color: var(--slate-700) !important; background: var(--slate-50); font-weight: 650; }
.modal-actions { display: flex; gap: 10px; flex-wrap: wrap; padding: 18px 28px 28px; border-top: 1px solid var(--slate-200); }
.modal-actions .btn[disabled] { color: var(--slate-700); background: var(--slate-300); box-shadow: none; cursor: not-allowed; }

/* Admin compatibility base */
.admin-body { background: #F6F8FC; }
.admin-shell { width: min(100% - 36px, 1380px); margin: 0 auto; }
.admin-topbar { position: sticky; top: 0; z-index: 30; background: rgba(255,255,255,.92); border-bottom: 1px solid rgba(203,213,225,.72); backdrop-filter: blur(18px); }
.topbar-inner { min-height: 76px; display: flex; align-items: center; gap: 18px; justify-content: space-between; }
.admin-user, .status-chip { display: inline-flex; align-items: center; min-height: 36px; padding: 0 13px; border-radius: 999px; background: #EEF2FF; color: #172554; font-weight: 760; font-size: .86rem; }
.admin-main { padding: 34px 0 60px; }

@media (max-width: 1100px) {
    .hero-grid, .product-grid, .requirements-grid, .video-page-grid, .footer-grid { grid-template-columns: 1fr; }
    .features-grid, .install-grid, .requirement-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-copy { max-width: none; }
    .hero { padding-top: 44px; }
    .brand-copy small { max-width: 210px; }
}
@media (max-width: 820px) {
    .brand-copy small { display: none; }
    .nav-links a:not(.nav-download-link) { padding-inline: 9px; }
}
@media (max-width: 760px) {
    .container { width: min(100% - 28px, var(--container)); }
    .site-header { position: static; }
    .nav-wrap { min-height: 0; align-items: flex-start; flex-direction: column; padding: 14px 0; gap: 13px; }
    .brand-logo { width: 44px; height: 44px; }
    .brand-copy small { display: block; max-width: 210px; }
    .nav-links { width: 100%; justify-content: flex-start; }
    .nav-links a { min-height: 36px; padding: 0 10px; font-size: .86rem; }
    h1 { font-size: clamp(2.1rem, 10vw, 2.85rem); }
    h2 { font-size: clamp(1.72rem, 8vw, 2.2rem); }
    .hero { padding: 38px 0 52px; }
    .hero-grid { gap: 28px; }
    .hero-actions, .modal-actions { align-items: stretch; flex-direction: column; }
    .btn, .btn-download { width: 100%; }
    .features-grid, .install-grid, .requirement-grid, .showcase-body { grid-template-columns: 1fr; }
    .requirements-grid { grid-template-columns: 1fr; }
    .section { padding: 54px 0; }
    .feature-card, .install-card, .requirement-card, .content-card, .chapter-card { padding: 22px; }
    .cta-card { align-items: stretch; flex-direction: column; padding: 26px; }
    .download-modal-head, .modal-steps, .modal-actions { padding-left: 22px; padding-right: 22px; }
    .modal-confirm, .modal-status { margin-left: 22px !important; margin-right: 22px !important; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}

/* Refinamento focado: CTA sempre visível no Windows, botões premium e layout mais equilibrado. */
:root {
    --orange-700: #B94310;
    --orange-600: #E85D18;
    --orange-500: #FF7226;
    --orange-400: #FF9B52;
    --button-shadow: 0 18px 42px rgba(232, 93, 24, .34), 0 3px 0 rgba(126, 48, 10, .20);
}
body {
    font-family: "Inter", "Segoe UI Variable Text", "Segoe UI", Aptos, Roboto, "Helvetica Neue", Arial, sans-serif;
    color: #111827;
}
h1, h2 {
    font-family: "Inter Display", "Inter", "Segoe UI Variable Display", "Segoe UI", Aptos, Roboto, "Helvetica Neue", Arial, sans-serif;
    letter-spacing: -.042em;
}
h1 { font-size: clamp(2.3rem, 4vw, 3.35rem); line-height: 1.04; max-width: 680px; }
h2 { font-size: clamp(1.72rem, 2.8vw, 2.42rem); }
.site-header { background: rgba(255, 255, 255, .985); }
.nav-wrap { min-height: 72px; }
.brand-logo { width: 48px; height: 48px; filter: drop-shadow(0 12px 18px rgba(255, 114, 38, .18)); }
.brand-copy strong { font-size: 1.07rem; letter-spacing: -.02em; }
.brand-copy small { font-size: .74rem; }
.hero { padding: 50px 0 60px; }
.hero-grid { grid-template-columns: minmax(0, .96fr) minmax(460px, 1.04fr); gap: 48px; }
.hero-lead { font-size: clamp(1rem, 1.35vw, 1.10rem); line-height: 1.68; max-width: 610px; }
.hero-actions, .cta-actions { min-height: 60px; align-items: center; }
.js-download-holder { display: contents; }
.btn {
    min-height: 48px;
    padding: 0 20px;
    border-radius: 13px;
    font-size: .96rem;
    font-weight: 760;
    letter-spacing: -.006em;
}
.btn-primary {
    color: #FFFFFF;
    background:
        linear-gradient(180deg, rgba(255,255,255,.22), rgba(255,255,255,0) 45%),
        linear-gradient(135deg, #FF9B52 0%, #FF7226 45%, #D94C12 100%);
    border: 1px solid rgba(183, 69, 12, .18);
    box-shadow: var(--button-shadow);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 24px 54px rgba(232, 93, 24, .42), 0 4px 0 rgba(126, 48, 10, .18);
}
.btn-secondary {
    color: #0F172A;
    background: #FFFFFF;
    border-color: #D8DEE9;
    box-shadow: 0 10px 28px rgba(15, 23, 42, .08);
}
.btn-secondary:hover { transform: translateY(-2px); box-shadow: 0 16px 38px rgba(15, 23, 42, .11); }
.btn-download {
    min-height: 58px;
    min-width: 244px;
    padding: 0 26px 0 15px;
    border-radius: 15px;
    gap: 13px;
}
.download-icon {
    width: 35px;
    height: 35px;
    border-radius: 10px;
    background: rgba(255, 255, 255, .20);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .28), 0 8px 16px rgba(126, 48, 10, .18);
}
.download-icon svg { width: 20px; height: 20px; }
.download-copy strong { font-size: 1.02rem; }
.download-copy small { margin-top: 1px; font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; opacity: .88; }
.nav-download-slot:empty { display: none; }
.nav-download-link {
    min-height: 42px !important;
    padding: 0 17px !important;
    border-radius: 12px !important;
    font-size: .90rem !important;
    background: linear-gradient(135deg, #FF8A3D, #E85D18) !important;
    box-shadow: 0 12px 28px rgba(232, 93, 24, .30) !important;
}
.nav-download-link:hover { transform: translateY(-2px); }
.download-animated { animation: downloadPulse 2.6s ease-in-out infinite; }
.btn-download::after, .nav-download-link::after, .download-final-button::after {
    content: "";
    position: absolute;
    inset: -2px;
    z-index: -1;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(255, 178, 112, .42), rgba(232, 93, 24, .16));
    filter: blur(11px);
    opacity: .55;
}
@keyframes downloadPulse {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-1px); }
}
.platform-card { max-width: 620px; border-radius: 16px; padding: 15px 17px; }
.mandatory-note {
    max-width: 620px;
    grid-template-columns: auto 1fr;
    border-radius: 16px;
    background: linear-gradient(180deg, #FFF9F3, #FFF4E7);
}
.mandatory-note::before { content: none; }
.mandatory-note > svg {
    width: 27px;
    height: 27px;
    color: #E85D18;
    margin-top: 1px;
    filter: drop-shadow(0 8px 14px rgba(232, 93, 24, .20));
}
.step-row span { min-height: 36px; font-size: .88rem; }
.hero-video-card {
    padding: 17px;
    border-radius: 28px;
    background: linear-gradient(180deg, #FFFFFF, #F8FAFC);
}
.tutorial-video { border-radius: 20px; border-color: rgba(15, 23, 42, .14); }
.video-card-head span, .video-card-head strong, .video-caption-line span { font-size: .70rem; }
.install-grid {
    display: grid;
    grid-template-columns: minmax(0, .84fr) minmax(420px, 1.16fr);
    gap: 46px;
    align-items: start;
}
.install-steps {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 12px;
    counter-reset: install;
}
.install-steps li {
    position: relative;
    display: grid;
    gap: 4px;
    padding: 17px 18px 17px 64px;
    border: 1px solid #E2E8F0;
    border-radius: 18px;
    background: #FFFFFF;
    box-shadow: 0 14px 34px rgba(15, 23, 42, .06);
    counter-increment: install;
}
.install-steps li::before {
    content: counter(install);
    position: absolute;
    left: 18px;
    top: 17px;
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    color: #FFFFFF;
    background: linear-gradient(135deg, #FF8A3D, #E85D18);
    font-weight: 820;
    box-shadow: 0 10px 22px rgba(232, 93, 24, .22);
}
.install-steps strong { color: #0F172A; font-size: 1.02rem; }
.install-steps span { color: #526176; line-height: 1.55; }
.split-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, .72fr);
    gap: 28px;
    align-items: center;
    padding: 32px;
    border: 1px solid #E2E8F0;
    border-radius: 28px;
    background: #FFFFFF;
    box-shadow: 0 18px 44px rgba(15, 23, 42, .07);
}
.compat-list { display: grid; gap: 10px; }
.compat-list span {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 43px;
    padding: 0 14px;
    border-radius: 13px;
    font-weight: 760;
}
.compat-list .ok { color: #166534; background: #F0FDF4; border: 1px solid #BBF7D0; }
.compat-list .block { color: #991B1B; background: #FEF2F2; border: 1px solid #FECACA; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; justify-content: flex-end; }
.footer-download-slot:empty { display: none; }
.download-ready [data-download-unavailable] { display: none !important; }
.download-unavailable [data-download-slot] > .btn-download, .download-unavailable .nav-download-link, .download-unavailable .footer-download-link { display: none !important; }

@media (max-width: 1100px) {
    .hero-grid, .install-grid, .split-card { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
    .btn-download { min-width: 0; width: 100%; }
    .hero-actions, .cta-actions { align-items: stretch; flex-direction: column; }
    .cta-actions { justify-content: stretch; }
    .nav-download-slot { width: 100%; }
    .nav-download-link { width: 100%; }
    .install-steps li { padding-right: 15px; }
    .split-card { padding: 24px; }
}