:root {
    --color-bg: #ffffff;
    --color-bg-alt: #f6f7f9;
    --color-text: #1a1d26;
    --color-muted: #5c6478;
    --color-accent: #1b2a4a;
    --color-accent-hover: #0f1a30;
    --color-border: #dde1ea;
    --color-success: #1a6b3c;
    --color-error: #b42318;
    --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --radius: 10px;
    --shadow: 0 8px 30px rgba(27, 42, 74, 0.08);
    --container: 1100px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
}

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

a {
    color: var(--color-accent);
}

a:hover {
    color: var(--color-accent-hover);
}

.container {
    width: min(100% - 2rem, var(--container));
    margin-inline: auto;
}

.container--narrow {
    width: min(100% - 2rem, 720px);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(8px);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.9rem 0;
}

.logo {
    font-weight: 700;
    font-size: 1.1rem;
    text-decoration: none;
    color: var(--color-accent);
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.site-nav a {
    text-decoration: none;
    font-size: 0.95rem;
}

.hero {
    padding: 3.5rem 0 2.5rem;
    background: linear-gradient(180deg, #f9fafc 0%, #ffffff 100%);
}

.hero__grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 2rem;
    align-items: center;
}

.hero h1 {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    line-height: 1.15;
    margin: 0 0 1rem;
    color: var(--color-accent);
}

.hero__subtitle {
    font-size: 1.1rem;
    color: var(--color-muted);
    margin: 0 0 1.5rem;
    max-width: 38ch;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.hero__demo {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--color-bg-alt);
    box-shadow: var(--shadow);
}

.section {
    padding: 3.5rem 0;
}

.section--alt {
    background: var(--color-bg-alt);
}

.section h2 {
    margin: 0 0 1.5rem;
    font-size: clamp(1.4rem, 3vw, 1.9rem);
    color: var(--color-accent);
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow);
}

.card h3 {
    margin: 0 0 0.5rem;
    font-size: 1.05rem;
}

.card p {
    margin: 0;
    color: var(--color-muted);
    font-size: 0.95rem;
}

.table-wrap {
    overflow-x: auto;
}

.pricing-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
}

.pricing-table th,
.pricing-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
}

.pricing-table th {
    background: var(--color-accent);
    color: #fff;
    font-weight: 600;
}

.pricing-table tr:last-child td {
    border-bottom: none;
}

.price {
    font-weight: 700;
}

.price-intro {
    font-size: 0.9rem;
    color: var(--color-muted);
}

.download-block {
    text-align: center;
}

.download-block__meta {
    color: var(--color-muted);
    margin-bottom: 1.25rem;
}

.download-block__version {
    color: var(--color-muted);
    font-size: 0.875rem;
    margin-top: 0.75rem;
}

.subscribe-block {
    max-width: 520px;
}

.subscribe-form {
    display: grid;
    gap: 0.85rem;
}

.subscribe-form input[type="email"] {
    width: 100%;
    padding: 0.75rem 0.9rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font: inherit;
}

.checkbox {
    display: flex;
    gap: 0.5rem;
    align-items: flex-start;
    font-size: 0.92rem;
    color: var(--color-muted);
}

.checkbox input {
    margin-top: 0.25rem;
}

.hp-field {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    opacity: 0;
}

.form-message {
    min-height: 1.25rem;
    margin: 0;
    font-size: 0.95rem;
}

.form-message--success {
    color: var(--color-success);
}

.form-message--error {
    color: var(--color-error);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.7rem 1.2rem;
    border-radius: var(--radius);
    border: 1px solid transparent;
    font: inherit;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn--primary {
    background: var(--color-accent);
    color: #fff;
}

.btn--primary:hover {
    background: var(--color-accent-hover);
    color: #fff;
}

.btn--secondary {
    background: #fff;
    color: var(--color-accent);
    border-color: var(--color-border);
}

.btn--secondary:hover {
    border-color: var(--color-accent);
}

.btn--small {
    padding: 0.45rem 0.8rem;
    font-size: 0.9rem;
}

.btn--large {
    padding: 0.9rem 1.6rem;
    font-size: 1.05rem;
}

.site-footer {
    border-top: 1px solid var(--color-border);
    padding: 1.5rem 0 2rem;
    background: var(--color-bg);
}

.site-footer__inner {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.75rem;
    color: var(--color-muted);
    font-size: 0.92rem;
}

.site-footer nav {
    display: flex;
    gap: 1rem;
}

.legal h1 {
    margin-top: 0;
    color: var(--color-accent);
}

.legal h2 {
    font-size: 1.15rem;
    margin-top: 2rem;
}

.legal__draft {
    color: var(--color-error);
    font-weight: 600;
}

.legal__back {
    margin-top: 2.5rem;
}

.download-unavailable {
    min-height: 50vh;
    display: flex;
    align-items: center;
}

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

@media (max-width: 860px) {
    .hero__grid {
        grid-template-columns: 1fr;
    }

    .hero__demo {
        order: -1;
    }

    .site-header__inner {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 600px) {
    .pricing-table th:nth-child(3),
    .pricing-table td:nth-child(3) {
        min-width: 180px;
    }
}