* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-bg: #fafafa;
    --color-text: #1a1a1a;
    --color-text-muted: #666;
    --color-accent: #22c55e;
    --color-accent-hover: #16a34a;
    --color-border: #e0e0e0;
    --color-card: #fff;
    --max-width: 640px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
}

header, main, footer {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

main {
    padding-top: 0;
    padding-bottom: 2rem;
}

article, main > section {
    margin-bottom: 2.5rem;
}

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

h1 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.3;
}

h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 0.75rem;
}

.hero {
    text-align: center;
    padding: 3rem 0 2rem;
}

.badge {
    display: inline-block;
    background: #fff3cd;
    color: #856404;
    padding: 0.5rem 1.25rem;
    border-radius: 2rem;
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.brand {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
    letter-spacing: 0.05em;
}

.problem ul {
    list-style: none;
    margin-top: 1rem;
}

.problem li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.problem li::before {
    content: "✗";
    position: absolute;
    left: 0;
    color: #dc3545;
}

.features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1.5rem;
}

.feature {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
}

.feature .icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.feature strong {
    display: block;
    margin-bottom: 0.25rem;
}

.feature p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    margin: 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9375rem;
}

th, td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

th {
    font-weight: 600;
    background: var(--color-card);
}

th:first-child {
    width: 30%;
}

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

.cta {
    text-align: center;
    padding: 2rem;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 0.75rem;
}

.cta h2 {
    margin-bottom: 0.5rem;
}

.cta p {
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
}

.button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--color-accent);
    color: #fff;
    padding: 0.875rem 1.5rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 500;
    transition: background 0.2s;
}

.button:hover {
    background: var(--color-accent-hover);
}

.tg-icon {
    font-size: 1.25rem;
}

footer {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: 0.875rem;
}


@media (max-width: 480px) {
    h1 {
        font-size: 1.5rem;
    }

    main {
        padding: 1.5rem 1rem;
    }
}