/* Nexis public website — design system. Extends the exact color tokens already used in
   Nexis.Owner.Admin / Nexis.Customer.Panel (wwwroot/app.css, --nx-* variables) so the public site,
   Customer Panel, and Owner Admin all read as the same product. No UI framework — plain CSS, same
   approach the other Nexis apps already take with their own nx- prefixed classes. */

:root {
    --nx-bg: #0B1420;
    --nx-bg-elevated: #111D2C;
    --nx-bg-card: #14202F;
    --nx-bg-hover: #1B2A3D;
    --nx-border: #223247;
    --nx-border-soft: #1A2738;
    --nx-text: #E7EEF6;
    --nx-text-dim: #93A4BA;
    --nx-text-faint: #5E7086;
    --nx-accent: #5AD1FF;
    --nx-accent-dim: #2A5A73;
    --nx-accent-contrast: #06141F;
    --nx-success: #4ADE80;
    --nx-warning: #FBBF24;
    --nx-danger: #F87171;
    --nx-radius: 10px;
    --nx-radius-lg: 16px;
    --nx-radius-sm: 6px;
    --nx-shadow: 0 4px 16px rgba(0,0,0,0.35);
    --nx-shadow-lg: 0 20px 60px rgba(0,0,0,0.45);
    --nx-max-width: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

html, body {
    font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--nx-bg);
    color: var(--nx-text);
    margin: 0;
    overflow-x: hidden;
}

body {
    background-image:
        radial-gradient(ellipse 900px 500px at 15% -10%, rgba(90,209,255,0.10), transparent 60%),
        radial-gradient(ellipse 700px 500px at 100% 10%, rgba(90,209,255,0.06), transparent 55%);
    background-repeat: no-repeat;
}

a { color: var(--nx-accent); text-decoration: none; }
a:hover, a:focus-visible { text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible {
    outline: 2px solid var(--nx-accent);
    outline-offset: 2px;
}

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

h1, h2, h3, h4 { font-weight: 700; letter-spacing: -0.01em; margin: 0 0 12px 0; line-height: 1.15; }
p { line-height: 1.6; color: var(--nx-text-dim); margin: 0 0 12px 0; }

.nx-container { max-width: var(--nx-max-width); margin: 0 auto; padding: 0 24px; }

.nx-eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em;
    color: var(--nx-accent); margin-bottom: 14px;
}
.nx-eyebrow::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--nx-accent); box-shadow: 0 0 10px var(--nx-accent); }

/* ---------- Buttons ---------- */

.nx-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 13px 26px; border-radius: var(--nx-radius-sm);
    font-size: 0.95rem; font-weight: 700; cursor: pointer;
    border: 1px solid var(--nx-border); background: var(--nx-bg-elevated); color: var(--nx-text);
    transition: transform 0.15s ease, filter 0.15s ease, background 0.15s ease, border-color 0.15s ease;
    white-space: nowrap;
}
.nx-btn:hover { background: var(--nx-bg-hover); text-decoration: none; }
.nx-btn:active { transform: translateY(1px); }
.nx-btn-primary {
    background: var(--nx-accent); border-color: var(--nx-accent); color: var(--nx-accent-contrast);
    box-shadow: 0 0 0 rgba(90,209,255,0);
}
.nx-btn-primary:hover { filter: brightness(1.08); box-shadow: 0 0 24px rgba(90,209,255,0.35); }
.nx-btn-ghost { background: transparent; border-color: var(--nx-border); color: var(--nx-text); }
.nx-btn-ghost:hover { border-color: var(--nx-accent); color: var(--nx-accent); }
.nx-btn-lg { padding: 15px 32px; font-size: 1rem; }
.nx-btn-block { width: 100%; }

/* ---------- Nav ---------- */

.nx-nav-bar {
    position: sticky; top: 0; z-index: 100;
    background: rgba(11,20,32,0.82);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--nx-border-soft);
}
.nx-nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 20px; }
.nx-nav-brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.1rem; color: var(--nx-text); flex-shrink: 0; }
.nx-nav-brand img { width: 30px; height: 30px; }
.nx-nav-brand:hover { text-decoration: none; }
.nx-nav-links { display: flex; align-items: center; gap: 4px; }
.nx-nav-links a {
    color: var(--nx-text-dim); font-weight: 600; font-size: 0.92rem;
    padding: 8px 14px; border-radius: var(--nx-radius-sm);
}
.nx-nav-links a:hover { color: var(--nx-text); background: var(--nx-bg-hover); text-decoration: none; }
.nx-nav-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nx-nav-toggle {
    display: none; background: none; border: 1px solid var(--nx-border); color: var(--nx-text);
    border-radius: var(--nx-radius-sm); width: 40px; height: 40px; cursor: pointer; font-size: 1.1rem;
}

/* ---------- Hero ---------- */

.nx-hero { padding: 96px 0 80px 0; position: relative; }
.nx-hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
.nx-hero h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); margin-bottom: 18px; }
.nx-hero h1 .nx-accent-text { color: var(--nx-accent); }
.nx-hero-sub { font-size: 1.15rem; max-width: 560px; margin-bottom: 32px; }
.nx-hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 28px; }
.nx-hero-meta { display: flex; gap: 22px; flex-wrap: wrap; font-size: 0.86rem; color: var(--nx-text-faint); }
.nx-hero-meta span { display: inline-flex; align-items: center; gap: 7px; }
.nx-hero-meta span::before { content: "✓"; color: var(--nx-success); font-weight: 700; }

.nx-hero-art { position: relative; display: flex; align-items: center; justify-content: center; }
.nx-hero-art img {
    width: 100%; max-width: 460px; border-radius: var(--nx-radius-lg);
    filter: drop-shadow(0 30px 70px rgba(90,209,255,0.18));
}

/* ---------- Section shells ---------- */

.nx-section { padding: 88px 0; border-top: 1px solid var(--nx-border-soft); }
.nx-section:first-of-type { border-top: none; }
.nx-section-head { max-width: 640px; margin: 0 auto 52px auto; text-align: center; }
.nx-section-head h2 { font-size: clamp(1.7rem, 3.2vw, 2.3rem); }
.nx-section-head p { font-size: 1.02rem; }
.nx-section-alt { background: linear-gradient(180deg, transparent, rgba(90,209,255,0.03), transparent); }

/* ---------- Feature grid ---------- */

.nx-feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.nx-feature-card {
    background: var(--nx-bg-card); border: 1px solid var(--nx-border-soft); border-radius: var(--nx-radius-lg);
    padding: 26px 24px; transition: border-color 0.15s ease, transform 0.15s ease;
}
.nx-feature-card:hover { border-color: var(--nx-accent-dim); transform: translateY(-2px); }
.nx-feature-icon {
    width: 46px; height: 46px; border-radius: 12px; margin-bottom: 16px;
    display: flex; align-items: center; justify-content: center; font-size: 1.3rem;
    background: rgba(90,209,255,0.10); color: var(--nx-accent);
}
.nx-feature-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.nx-feature-card p { font-size: 0.92rem; margin-bottom: 0; }
.nx-feature-badge {
    display: inline-block; margin-top: 12px; font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.05em; color: var(--nx-warning); background: rgba(251,191,36,0.12);
    padding: 3px 9px; border-radius: 999px;
}

/* ---------- Showcase (Overlay / Customer Panel) ---------- */

.nx-showcase { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.nx-showcase.nx-reverse .nx-showcase-art { order: 2; }
.nx-showcase.nx-reverse .nx-showcase-copy { order: 1; }
.nx-showcase-art {
    background: var(--nx-bg-card); border: 1px solid var(--nx-border-soft); border-radius: var(--nx-radius-lg);
    padding: 28px; box-shadow: var(--nx-shadow-lg);
}
.nx-showcase-list { list-style: none; padding: 0; margin: 20px 0 0 0; display: flex; flex-direction: column; gap: 12px; }
.nx-showcase-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 0.95rem; color: var(--nx-text); }
.nx-showcase-list li::before { content: "◆"; color: var(--nx-accent); font-size: 0.7rem; margin-top: 5px; }

.nx-mock-window {
    background: var(--nx-bg-elevated); border: 1px solid var(--nx-border); border-radius: var(--nx-radius);
    overflow: hidden;
}
.nx-mock-titlebar {
    display: flex; align-items: center; gap: 6px; padding: 10px 14px;
    background: var(--nx-bg-hover); border-bottom: 1px solid var(--nx-border-soft);
}
.nx-mock-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--nx-border); }
.nx-mock-body { padding: 18px; display: flex; flex-direction: column; gap: 12px; }
.nx-mock-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.nx-mock-label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--nx-text-faint); }
.nx-mock-value { font-size: 0.85rem; font-weight: 700; color: var(--nx-text); }
.nx-mock-bar { height: 7px; border-radius: 999px; background: var(--nx-bg); overflow: hidden; border: 1px solid var(--nx-border-soft); }
.nx-mock-bar-fill { height: 100%; background: linear-gradient(90deg, var(--nx-accent-dim), var(--nx-accent)); }

/* ---------- How it works ---------- */

.nx-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: nx-step; }
.nx-step { position: relative; padding: 24px 20px 20px 20px; background: var(--nx-bg-card); border: 1px solid var(--nx-border-soft); border-radius: var(--nx-radius); }
.nx-step::before {
    counter-increment: nx-step; content: counter(nx-step);
    display: flex; align-items: center; justify-content: center;
    width: 32px; height: 32px; border-radius: 50%; margin-bottom: 14px;
    background: var(--nx-accent); color: var(--nx-accent-contrast); font-weight: 800; font-size: 0.95rem;
}
.nx-step h3 { font-size: 0.98rem; margin-bottom: 6px; }
.nx-step p { font-size: 0.88rem; margin-bottom: 0; }

/* ---------- Pricing ---------- */

.nx-pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
.nx-price-card {
    background: var(--nx-bg-card); border: 1px solid var(--nx-border-soft); border-radius: var(--nx-radius-lg);
    padding: 30px 26px; display: flex; flex-direction: column; position: relative;
}
.nx-price-card.nx-recommended { border-color: var(--nx-accent); box-shadow: 0 0 0 1px var(--nx-accent), 0 20px 50px rgba(90,209,255,0.12); }
.nx-price-ribbon {
    position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
    background: var(--nx-accent); color: var(--nx-accent-contrast);
    font-size: 0.7rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.05em;
    padding: 5px 14px; border-radius: 999px; white-space: nowrap;
}
.nx-price-name { font-size: 1.2rem; margin-bottom: 4px; }
.nx-price-tagline { font-size: 0.85rem; color: var(--nx-text-faint); margin-bottom: 18px; min-height: 2.6em; }
.nx-price-amount { display: flex; align-items: baseline; gap: 6px; margin-bottom: 4px; }
.nx-price-amount .nx-num { font-size: 2.4rem; font-weight: 800; color: var(--nx-text); }
.nx-price-amount .nx-cur { font-size: 1rem; color: var(--nx-text-dim); }
.nx-price-period { font-size: 0.85rem; color: var(--nx-text-faint); margin-bottom: 22px; }
.nx-price-features { list-style: none; padding: 0; margin: 0 0 26px 0; display: flex; flex-direction: column; gap: 11px; flex: 1; }
.nx-price-features li { display: flex; align-items: flex-start; gap: 9px; font-size: 0.9rem; color: var(--nx-text); }
.nx-price-features li::before { content: "✓"; color: var(--nx-success); font-weight: 800; flex-shrink: 0; }
.nx-price-features li.nx-not-included { color: var(--nx-text-faint); }
.nx-price-features li.nx-not-included::before { content: "–"; color: var(--nx-text-faint); }
.nx-price-note { font-size: 0.78rem; color: var(--nx-text-faint); margin-top: 12px; }

.nx-pricing-unavailable {
    text-align: center; padding: 50px 20px; color: var(--nx-text-faint);
    border: 1px dashed var(--nx-border); border-radius: var(--nx-radius-lg);
}

/* ---------- Branding comparison table ---------- */

.nx-compare-wrap { overflow-x: auto; border: 1px solid var(--nx-border-soft); border-radius: var(--nx-radius-lg); }
table.nx-compare { width: 100%; border-collapse: collapse; min-width: 560px; }
table.nx-compare th, table.nx-compare td { padding: 14px 18px; text-align: center; border-bottom: 1px solid var(--nx-border-soft); }
table.nx-compare th:first-child, table.nx-compare td:first-child { text-align: left; }
table.nx-compare thead th { background: var(--nx-bg-elevated); color: var(--nx-text); font-size: 0.9rem; }
table.nx-compare tbody td { color: var(--nx-text-dim); font-size: 0.88rem; }
table.nx-compare tbody tr:last-child td { border-bottom: none; }
.nx-check-yes { color: var(--nx-success); font-weight: 800; }
.nx-check-no { color: var(--nx-text-faint); }

/* ---------- Voice callout ---------- */

.nx-voice-card {
    background: var(--nx-bg-card); border: 1px solid var(--nx-border-soft); border-radius: var(--nx-radius-lg);
    padding: 34px; display: flex; align-items: center; gap: 28px; justify-content: space-between; flex-wrap: wrap;
}
.nx-voice-copy { max-width: 640px; }
.nx-voice-tag {
    display: inline-block; font-size: 0.72rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.05em;
    color: var(--nx-accent); background: rgba(90,209,255,0.10); padding: 4px 10px; border-radius: 999px; margin-bottom: 12px;
}

/* ---------- FAQ ---------- */

.nx-faq-list { display: flex; flex-direction: column; gap: 10px; max-width: 800px; margin: 0 auto; }
.nx-faq-item { background: var(--nx-bg-card); border: 1px solid var(--nx-border-soft); border-radius: var(--nx-radius); overflow: hidden; }
.nx-faq-question {
    width: 100%; text-align: left; background: none; border: none; cursor: pointer;
    display: flex; align-items: center; justify-content: space-between; gap: 14px;
    padding: 18px 22px; color: var(--nx-text); font-size: 0.98rem; font-weight: 700;
}
.nx-faq-question:hover { color: var(--nx-accent); }
.nx-faq-icon { flex-shrink: 0; transition: transform 0.2s ease; color: var(--nx-text-faint); }
.nx-faq-item[open] .nx-faq-icon { transform: rotate(45deg); color: var(--nx-accent); }
.nx-faq-answer { padding: 0 22px 20px 22px; }
.nx-faq-answer p { margin: 0; font-size: 0.92rem; }
.nx-faq-item summary { list-style: none; }
.nx-faq-item summary::-webkit-details-marker { display: none; }

/* ---------- Final CTA ---------- */

.nx-cta-band {
    background: radial-gradient(ellipse 700px 300px at 50% -40%, rgba(90,209,255,0.14), transparent 70%), var(--nx-bg-elevated);
    border-top: 1px solid var(--nx-border-soft); border-bottom: 1px solid var(--nx-border-soft);
    padding: 76px 0; text-align: center;
}
.nx-cta-band h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); }
.nx-cta-band p { max-width: 520px; margin: 0 auto 28px auto; }

/* ---------- Footer ---------- */

.nx-footer { padding: 56px 0 32px 0; }
.nx-footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 32px; margin-bottom: 40px; }
.nx-footer-brand { display: flex; align-items: center; gap: 10px; font-weight: 800; margin-bottom: 12px; }
.nx-footer-brand img { width: 26px; height: 26px; }
.nx-footer-tagline { font-size: 0.88rem; max-width: 280px; }
.nx-footer-col h4 { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--nx-text-faint); margin-bottom: 14px; }
.nx-footer-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.nx-footer-col a { color: var(--nx-text-dim); font-size: 0.9rem; }
.nx-footer-col a:hover { color: var(--nx-accent); }
.nx-footer-bottom {
    display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
    padding-top: 24px; border-top: 1px solid var(--nx-border-soft);
    font-size: 0.82rem; color: var(--nx-text-faint);
}
.nx-footer-legal-note {
    font-size: 0.76rem; color: var(--nx-text-faint); background: rgba(251,191,36,0.06);
    border: 1px solid rgba(251,191,36,0.2); border-radius: var(--nx-radius-sm);
    padding: 10px 14px; margin-top: 18px;
}

/* ---------- Legal pages ---------- */

.nx-legal { padding: 64px 0 96px 0; max-width: 760px; margin: 0 auto; }
.nx-legal h1 { margin-bottom: 8px; }
.nx-legal section { margin-top: 28px; }
.nx-legal h2 { font-size: 1.1rem; margin-bottom: 8px; }

/* ---------- Utilities ---------- */

.nx-muted { color: var(--nx-text-faint); }
.nx-center { text-align: center; }

/* ---------- Responsive ---------- */

@media (max-width: 980px) {
    .nx-hero-grid { grid-template-columns: 1fr; gap: 40px; }
    .nx-hero-art { order: -1; max-width: 380px; margin: 0 auto; }
    .nx-showcase, .nx-showcase.nx-reverse { grid-template-columns: 1fr; }
    .nx-showcase.nx-reverse .nx-showcase-art,
    .nx-showcase.nx-reverse .nx-showcase-copy { order: initial; }
    .nx-feature-grid { grid-template-columns: repeat(2, 1fr); }
    .nx-steps { grid-template-columns: repeat(2, 1fr); }
    .nx-pricing-grid { grid-template-columns: 1fr; max-width: 440px; margin: 0 auto; }
    .nx-footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
    .nx-nav-links { display: none; }
    .nx-nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
    .nx-nav-actions .nx-btn-ghost { display: none; }
    body.nx-nav-open .nx-nav-links {
        display: flex; flex-direction: column; align-items: stretch; gap: 2px;
        position: absolute; top: 68px; left: 0; right: 0;
        background: var(--nx-bg-elevated); border-bottom: 1px solid var(--nx-border-soft);
        padding: 10px 16px 16px 16px;
    }
    body.nx-nav-open .nx-nav-links a { padding: 12px 10px; }
    .nx-hero { padding: 60px 0 56px 0; }
    .nx-hero-ctas { flex-direction: column; align-items: stretch; }
    .nx-hero-ctas .nx-btn { width: 100%; }
    .nx-section { padding: 60px 0; }
    .nx-feature-grid { grid-template-columns: 1fr; }
    .nx-steps { grid-template-columns: 1fr; }
    .nx-voice-card { flex-direction: column; align-items: flex-start; text-align: left; }
    .nx-voice-card .nx-btn { width: 100%; }
    .nx-footer-grid { grid-template-columns: 1fr; gap: 26px; }
    .nx-footer-bottom { flex-direction: column; align-items: flex-start; }
    table.nx-compare { min-width: 480px; }
}