:root {
    --background: #0f1115;
    --surface: #171a21;
    --text-primary: #cccccc;
    --text-secondary: #b5bcc9;
    --text-brand: #2d8437;
    --border: rgba(255, 255, 255, 0.08);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 48px 24px;
    background: var(--background);
    color: var(--text-primary);

    font-family:
        Inter,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;

    line-height: 1.7;
}

.container {
    max-width: 720px;
    margin: 0 auto;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;

    padding: 40px;
}

.brand {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;

    color: var(--text-brand);

    margin-bottom: 16px;
}

h1 {
    margin: 0;
    font-size: 40px;
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.subtitle {
    margin-top: 14px;
    margin-bottom: 40px;

    color: var(--text-secondary);
    font-size: 16px;
}

.section {
    margin-bottom: 28px;
}

p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 16px;
}

footer {
    margin-top: 32px;

    color: #7d8596;
    font-size: 14px;
}

@media (max-width: 640px) {
    body {
        padding: 24px 16px;
    }

    .card {
        padding: 28px;
        border-radius: 16px;
    }

    h1 {
        font-size: 32px;
    }
}

.hero {
    text-align: left;
}

.actions {
    margin-top: 36px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    padding: 14px 20px;

    border-radius: 12px;

    text-decoration: none;

    font-size: 15px;
    font-weight: 600;

    transition:
        transform 0.18s ease,
        opacity 0.18s ease,
        background 0.18s ease;
}

.button:hover {
    transform: translateY(-1px);
    opacity: 0.96;
}

.button.primary {
    background: #f5f7fa;
    color: #0f1115;
}

.button.primary:visited {
    color: #0f1115;
}

.back-link {
    display: inline-flex;
    align-items: center;

    margin: 28px 0px 28px 0px;

    color: var(--text-secondary);

    text-decoration: none;

    font-size: 14px;
    font-weight: 500;

    transition:
        opacity 0.18s ease,
        transform 0.18s ease;
}

.back-link:hover {
    opacity: 0.9;
    transform: translateX(-1px);
}