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

:root {
    --bg: #ffffff;
    --text: #1d1d1f;
    --text-secondary: #86868b;
    --border: #d2d2d7;
    --card-bg: #fbfbfd;
    --hover-bg: #f5f5f7;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 980px;
    margin: 0 auto;
    padding: 80px 22px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    text-align: center;
    margin-bottom: 60px;
}

header h1 {
    font-size: 48px;
    font-weight: 600;
    letter-spacing: -0.003em;
    color: var(--text);
    margin-bottom: 8px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 21px;
    font-weight: 400;
}

main {
    flex: 1;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.card {
    background: var(--card-bg);
    border-radius: 18px;
    padding: 32px 28px;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
    display: block;
    border: 1px solid transparent;
}

.card:hover {
    background: var(--hover-bg);
    transform: scale(1.02);
}

.card-icon {
    font-size: 32px;
    margin-bottom: 16px;
    filter: grayscale(100%);
    opacity: 0.8;
}

.card:hover .card-icon {
    filter: grayscale(0%);
    opacity: 1;
}

.card h3 {
    font-size: 19px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text);
    letter-spacing: -0.01em;
}

.card p {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 400;
}

footer {
    margin-top: 80px;
    padding-top: 20px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 12px;
}

footer p {
    margin-bottom: 4px;
}

.status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.status-dot {
    width: 6px;
    height: 6px;
    background: var(--text);
    border-radius: 50%;
}

@media (max-width: 768px) {
    .container {
        padding: 40px 20px;
    }

    header {
        margin-bottom: 40px;
    }

    header h1 {
        font-size: 32px;
    }

    .subtitle {
        font-size: 17px;
    }

    .card-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .card {
        padding: 24px 20px;
        border-radius: 12px;
    }

    .card-icon {
        font-size: 28px;
        margin-bottom: 12px;
    }
}