/* ── Hero section on landing page ────────────────────── */
.hero-banner {
    text-align: center;
    padding: 2rem 1rem 2.5rem;
}

.hero-banner img {
    max-width: 400px;
    height: auto;
    border-radius: 8px;
    margin: 0 auto 0.5rem;
    display: block;
}

.hero-banner h1 {
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.6rem;
}

.hero-banner > p {
    max-width: 640px;
    margin: 0 auto 1rem;
    font-size: 1.05rem;
    line-height: 1.6;
    color: var(--md-default-fg-color--light);
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

/* ── Feature grid ───────────────────────────────────── */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.feature-grid .card {
    background: var(--md-default-bg-color);
    border: 1px solid var(--md-default-fg-color--lightest);
    border-radius: 0.6rem;
    padding: 1.25rem 1.5rem;
    transition: box-shadow 0.25s ease, border-color 0.25s ease, transform 0.15s ease;
}

.feature-grid .card:hover {
    border-color: var(--md-primary-fg-color);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.07);
    transform: translateY(-2px);
}

.feature-grid .card h3 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
    font-weight: 600;
}

.feature-grid .card h3 .twemoji,
.feature-grid .card h3 .card-icon {
    margin-right: 0.35rem;
    vertical-align: -0.1em;
}

.feature-grid .card p {
    margin-bottom: 0;
    font-size: 0.84rem;
    line-height: 1.55;
    color: var(--md-default-fg-color--light);
}

/* ── Tables ─────────────────────────────────────────── */
.md-typeset table:not([class]) th {
    white-space: nowrap;
}

/* ── Provider badges ────────────────────────────────── */
.provider-badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    margin-right: 0.3rem;
}

.provider-badge.cosmos  { background: #0078d4; color: #fff; }
.provider-badge.dynamo  { background: #ff9900; color: #fff; }
.provider-badge.spanner { background: #4285f4; color: #fff; }

/* ── Mermaid diagram sizing ─────────────────────────── */
.md-typeset .mermaid {
    max-width: 600px;
    margin: 1rem auto;
}

/* ── Subtle section separators ──────────────────────── */
.md-typeset hr {
    border-color: var(--md-default-fg-color--lightest);
}