:root {
    color-scheme: light;
    --surface-page: #f9fafb;
    --surface-card: #ffffff;
    --text-primary: #111827;
    --text-subtle: #374151;
    --text-muted: #4b5563;
    --hero-gradient-start: #eef2ff;
    --hero-gradient-mid: #ffffff;
    --hero-gradient-end: #f8fafc;
    --hero-glow: rgba(59, 130, 246, 0.08);
    --skip-link-bg: #ffffff;
    --skip-link-text: #2563eb;
    --skip-link-shadow: rgba(37, 99, 235, 0.15);
    --nav-pill-bg: #eff6ff;
    --nav-pill-hover: #dbeafe;
    --nav-pill-text: #1d4ed8;
    --nav-pill-shadow: rgba(59, 130, 246, 0.25);
    --primary-cta-bg: #2563eb;
    --primary-cta-hover: #1d4ed8;
    --primary-cta-text: #ffffff;
    --primary-cta-hover-text: #ffffff;
    --cta-note: #4b5563;
    --trust-text: #4b5563;
    --trust-icon: #16a34a;
    --focus-outline: #2563eb;
    --border-base: #e5e7eb;
}

/* System font stack */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    border-width: 0;
    border-style: solid;
    border-color: var(--border-base);
}

body {
    margin: 0;
    background-color: var(--surface-page);
    color: var(--text-primary);
    line-height: 1.5;
}

h1,
h2,
h3,
h4,
h5,
h6,
p {
    margin: 0;
    font-size: inherit;
    font-weight: inherit;
}

a {
    color: inherit;
    text-decoration: none;
}

/* Focus states */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 2px solid var(--focus-outline);
    outline-offset: 2px;
}

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

.sr-only:not([data-critical-skip-link]):focus {
    position: static;
    width: auto;
    height: auto;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
}

[data-critical-skip-link] {
    position: absolute;
    top: 1rem;
    left: 1rem;
    z-index: 1000;
    padding: 0.5rem 1rem;
    border-radius: 0.75rem;
    background-color: var(--skip-link-bg);
    color: var(--skip-link-text);
    box-shadow: 0 10px 25px var(--skip-link-shadow);
    transform: translateY(-200%);
    opacity: 0;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

[data-critical-skip-link]:focus {
    transform: translateY(0);
    opacity: 1;
    clip: auto;
    width: auto;
    height: auto;
    overflow: visible;
    white-space: normal;
}

/* Honeypot field - hidden visually and from assistive tech while remaining in DOM */
.honeypot {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    clip-path: inset(50%);
    border: 0;
    white-space: nowrap;
}

/* Success message hidden by default */
#success-message {
    display: none;
}

#success-message.show {
    display: block;
}

.mobile-cta {
    transform: translateY(100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.mobile-cta.visible {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}

#hero {
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, var(--hero-gradient-start), var(--hero-gradient-mid) 35%, var(--hero-gradient-end));
    padding: 4rem 0;
}

#hero::before {
    content: "";
    position: absolute;
    inset: -25% -15% -35%;
    background: radial-gradient(circle at top, var(--hero-glow), transparent 65%);
    pointer-events: none;
}

#hero > [data-critical-container] {
    max-width: 64rem;
    margin: 0 auto;
    padding: 0 1.5rem;
    text-align: center;
    position: relative;
    z-index: 1;
}

#hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

#hero [data-critical-subtitle] {
    font-size: 1.25rem;
    color: var(--text-subtle);
    margin-bottom: 2rem;
    max-width: 48rem;
    margin-left: auto;
    margin-right: auto;
}

[data-critical-nav] {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    align-items: center;
    margin-bottom: 2rem;
}

[data-hero-pill-group] {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
}

[data-critical-nav-link] {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    background-color: var(--nav-pill-bg);
    color: var(--nav-pill-text);
    box-shadow: 0 1px 2px var(--nav-pill-shadow);
    transition: background-color 0.2s ease, color 0.2s ease;
}

[data-pricing-details] summary {
    list-style: none;
}

[data-pricing-details] summary::-webkit-details-marker {
    display: none;
}

[data-pricing-details] .expanded-label {
    display: none;
}

[data-pricing-details][open] .expanded-label {
    display: inline;
}

[data-pricing-details][open] .collapsed-label {
    display: none;
}

[data-pricing-details][open] .chevron-icon {
    transform: rotate(180deg);
}

img[loading="lazy"] {
    opacity: 0;
    transition: opacity 0.35s ease;
}

img[loading="lazy"].is-loaded {
    opacity: 1;
}

[data-critical-nav-link]:hover,
[data-critical-nav-link]:focus {
    background-color: var(--nav-pill-hover);
}

[data-critical-cta-wrapper] {
    display: flex;
    flex-direction: column;
    align-items: center;
}

[data-critical-primary-cta] {
    display: inline-block;
    background-color: var(--primary-cta-bg);
    color: var(--primary-cta-text);
    padding: 1rem 2rem;
    border-radius: 0.75rem;
    font-size: 1.125rem;
    font-weight: 600;
    transition: background-color 0.2s ease, color 0.2s ease;
}

[data-critical-primary-cta]:hover,
[data-critical-primary-cta]:focus {
    background-color: var(--primary-cta-hover);
    color: var(--primary-cta-hover-text);
}

[data-critical-cta-note] {
    margin-top: 1rem;
    margin-bottom: 0;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--cta-note);
}

[data-critical-trust] {
    margin-top: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--trust-text);
}

[data-critical-trust] svg {
    width: 1rem;
    height: 1rem;
    color: var(--trust-icon);
}

@media (min-width: 768px) {
    [data-critical-nav] {
        flex-direction: column;
        gap: 1rem;
    }

    [data-hero-pill-group] {
        width: auto;
        flex-wrap: nowrap;
    }

    #hero {
        padding: 6rem 0;
        display: flex;
        align-items: center;
    }

    #hero h1 {
        font-size: 3.5rem;
    }
}

@media (min-width: 1024px) {
    #hero {
        min-height: 80vh;
        padding: 6rem 0;
    }
}