:root {
    --blue: #003366;
    --green: #00FF99;
    --sky: #007BFF;
    --white: #FFFFFF;
    --dark: #0A1A2F;
    --text: #10243B;
    --muted: #5A6A85;
    --bg-light: #F2F6FB;
    --border: rgba(10, 26, 47, 0.1);
    --shadow: 0 20px 40px rgba(10, 26, 47, 0.12);
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 2rem;
    --space-xs: 0.75rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --max-width: 1120px;
    --transition: all 0.3s ease;
    font-size: 16px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Poppins', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background-color: var(--white);
    line-height: 1.6;
    min-height: 100vh;
}

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

video {
    max-width: 100%;
    border-radius: var(--radius-lg);
}

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

a:focus-visible,
button:focus-visible {
    outline: 3px solid var(--green);
    outline-offset: 4px;
}

h1, h2, h3 {
    font-family: 'Montserrat', 'Poppins', sans-serif;
    color: var(--dark);
    line-height: 1.2;
    margin: 0 0 var(--space-sm);
}

h1 { font-size: clamp(2rem, 4vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p {
    margin: 0 0 var(--space-sm);
    color: var(--muted);
}

.section {
    padding: var(--space-xl) var(--space-sm);
}

.container {
    margin: 0 auto;
    max-width: var(--max-width);
    width: min(100%, var(--max-width));
}

.grid {
    display: grid;
    gap: var(--space-lg);
}

.two-column {
    grid-template-columns: repeat(12, 1fr);
}

.two-column > * {
    grid-column: 1 / -1;
}

.four-column {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: repeat(1, minmax(0, 1fr));
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.section-header p {
    max-width: 44ch;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--green), var(--sky));
    color: var(--dark);
    border-color: transparent;
    box-shadow: 0 10px 20px rgba(0, 123, 255, 0.25);
}

.btn-primary:hover,
.btn-primary:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 16px 32px rgba(0, 123, 255, 0.32);
}

.btn-outline {
    background-color: transparent;
    color: var(--blue);
    border-color: var(--blue);
}

.btn-outline:hover,
.btn-outline:focus-visible {
    background-color: rgba(0, 51, 102, 0.08);
}

.button-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin: var(--space-md) 0;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background-color: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    color: var(--blue);
}

.brand-name {
    font-size: 1rem;
}

.primary-nav {
    position: relative;
}

.nav-toggle {
    display: inline-flex;
    flex-direction: column;
    gap: 0.3rem;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
}

.nav-toggle span {
    width: 1.5rem;
    height: 2px;
    background-color: var(--dark);
    transition: var(--transition);
}

.nav-list {
    position: absolute;
    top: 100%;
    right: 0;
    display: none;
    flex-direction: column;
    background-color: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-sm);
    min-width: 200px;
    box-shadow: var(--shadow);
}

.nav-list.is-open {
    display: flex;
}

.nav-list a {
    padding: 0.5rem 0.75rem;
    color: var(--muted);
    border-radius: var(--radius-sm);
}

.nav-list a:hover,
.nav-list a:focus-visible {
    background-color: rgba(0, 51, 102, 0.08);
    color: var(--blue);
}

.hero {
    padding-top: calc(var(--space-xl) + 2rem);
}

.hero-copy {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}
.bottom-pad {
padding-bottom: calc(var(--space-xl) + 1rem);
}

.hero-meta {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    background-color: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: var(--space-sm);
}

.hero-video {
    width: 100%;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.logo-strip {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    align-items: center;
    gap: var(--space-lg);
    opacity: 0.8;
}

.card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg) var(--space-md);
    border: 1px solid var(--border);
    box-shadow: 0 12px 24px rgba(10, 26, 47, 0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 24px 40px rgba(10, 26, 47, 0.12);
}

.pricing {
    background-color: var(--bg-light);
}

.pricing-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.pricing-card ul {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-md);
    display: grid;
    gap: 0.5rem;
    color: var(--muted);
}

.pricing-card .price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--blue);
}

.pricing-card .price span {
    font-size: 1rem;
    color: var(--muted);
    margin-left: 0.25rem;
}

.pricing-card.highlighted {
    border: 2px solid var(--green);
    box-shadow: 0 20px 40px rgba(0, 255, 153, 0.24);
}

.demo {
    background: linear-gradient(120deg, rgba(0, 51, 102, 0.95), rgba(0, 123, 255, 0.85));
    color: var(--white);
}

.demo-banner {
    display: grid;
    gap: var(--space-md);
    align-items: center;
}

.demo-banner p {
    color: rgba(255, 255, 255, 0.8);
}

.faq {
    background-color: var(--white);
}

.accordion {
    display: grid;
    gap: var(--space-sm);
}

.accordion-item {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background-color: var(--white);
    box-shadow: 0 12px 30px rgba(10, 26, 47, 0.08);
}

.accordion-trigger {
    width: 100%;
    background: none;
    border: none;
    padding: var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark);
    cursor: pointer;
}

.accordion-icon {
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    border: 2px solid var(--sky);
    position: relative;
}

.accordion-icon::before,
.accordion-icon::after {
    content: '';
    position: absolute;
    background-color: var(--sky);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.accordion-icon::before {
    width: 10px;
    height: 2px;
}

.accordion-icon::after {
    width: 2px;
    height: 10px;
    transition: opacity 0.2s ease;
}

.accordion-item.is-open .accordion-icon::after {
    opacity: 0;
}

.accordion-content {
    padding: 0 var(--space-md) var(--space-md);
    color: var(--muted);
}

.site-footer {
    background-color: var(--dark);
    color: rgba(255, 255, 255, 0.82);
    padding: var(--space-xl) var(--space-sm);
}

.footer-grid {
    display: grid;
    gap: var(--space-lg);
}

.footer-links ul,
.footer-contact ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.5rem;
}

.footer-links a,
.footer-contact a {
    color: rgba(255, 255, 255, 0.82);
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--green);
}

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

@media (min-width: 640px) {
    .button-group {
        flex-direction: row;
        align-items: center;
    }

    .demo-banner {
        grid-template-columns: repeat(12, 1fr);
    }

    .demo-banner > :first-child {
        grid-column: span 7;
    }

    .demo-banner > :last-child {
        grid-column: span 5;
        justify-self: end;
    }
}

@media (min-width: 768px) {
    .two-column {
        grid-template-columns: repeat(12, 1fr);
        gap: var(--space-xl);
    }

    .two-column > :first-child {
        grid-column: span 6;
    }

    .two-column > :last-child {
        grid-column: span 6;
    }

    .four-column {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .nav-toggle {
        display: none;
    }

    .nav-list {
        position: static;
        display: flex !important;
        flex-direction: row;
        align-items: center;
        background: none;
        border: none;
        box-shadow: none;
        padding: 0;
        gap: var(--space-sm);
    }

    .nav-list a {
        padding: 0.5rem;
        color: var(--muted);
    }

    .header-container {
        gap: var(--space-md);
    }
}

@media (min-width: 992px) {
    .four-column {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .footer-grid {
        grid-template-columns: repeat(12, 1fr);
    }

    .footer-brand {
        grid-column: span 5;
    }

    .footer-links {
        grid-column: span 3;
    }

    .footer-contact {
        grid-column: span 4;
    }
}

.site-header.is-scrolled {
    box-shadow: 0 10px 30px rgba(10, 26, 47, 0.12);
}