* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: #f5f5f2;
    color: #202020;
    font-family:
        Tahoma,
        Arial,
        sans-serif;
}

.page {
    width: min(
        1100px,
        calc(100% - 40px)
    );

    margin: 0 auto;
    padding: 70px 0;
}

.hero {
    text-align: center;
    margin-bottom: 55px;
}

.eyebrow {
    margin: 0 0 12px;
    color: #777;
    font-size: 14px;
    letter-spacing: 1px;
}

h1 {
    margin: 0;
    font-size: clamp(
        34px,
        6vw,
        64px
    );
    line-height: 1.4;
}

.intro {
    max-width: 650px;
    margin: 22px auto 0;
    color: #666;
    font-size: 18px;
    line-height: 2;
}

.cards {
    display: grid;
    grid-template-columns:
        repeat(
            3,
            minmax(0, 1fr)
        );
    gap: 24px;
}

.card {
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 18px;
    padding: 28px;
}

.card h2 {
    margin-top: 0;
    font-size: 23px;
}

.card p {
    color: #666;
    line-height: 2;
    min-height: 105px;
}

.card button {
    width: 100%;
    border: none;
    border-radius: 10px;
    padding: 13px 18px;
    font-size: 15px;
}

.status {
    margin-top: 35px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    color: #555;
}

.status-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: green;
}

@media (
    max-width: 800px
) {

    .cards {
        grid-template-columns: 1fr;
    }

    .card p {
        min-height: auto;
    }
}
.button-link {
    display: block;
    width: 100%;
    padding: 13px 18px;
    text-align: center;
    text-decoration: none;
    border-radius: 10px;
    background: #202020;
    color: #ffffff;
}

.button-link:hover {
    opacity: 0.85;
}

.top-nav {
    margin-bottom: 30px;
}

.top-nav a {
    color: #444;
    text-decoration: none;
}

.rhythm-hero {
    margin-bottom: 35px;
}

.summary-grid {
    display: grid;
    grid-template-columns:
        repeat(
            4,
            minmax(0, 1fr)
        );
    gap: 16px;
    margin-bottom: 25px;
}

.summary-card {
    background: #ffffff;
    border: 1px solid #dddddd;
    border-radius: 16px;
    padding: 22px;
    text-align: center;
}

.summary-number {
    display: block;
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 8px;
}

.summary-label {
    color: #666666;
}

.bank-info {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
    background: #ffffff;
    border: 1px solid #dddddd;
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 40px;
}

.pattern-section h2 {
    margin-bottom: 20px;
}

.pattern-grid {
    display: grid;
    grid-template-columns:
        repeat(
            4,
            minmax(0, 1fr)
        );
    gap: 16px;
}

.pattern-card {
    background: #ffffff;
    border: 1px solid #dddddd;
    border-radius: 14px;
    padding: 18px;
}

.pattern-header {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 16px;
}

.pattern-header span {
    color: #777777;
    font-size: 13px;
}

.pattern-stats {
    display: flex;
    flex-direction: column;
    gap: 7px;
    color: #555555;
    font-size: 14px;
}

.feature {
    margin-top: 8px;
    background: #f2f2ef;
    border-radius: 7px;
    padding: 7px 9px;
    font-size: 13px;
}

.pattern-api-link {
    display: block;
    margin-top: 15px;
    color: #333333;
    font-size: 13px;
}

@media (
    max-width: 900px
) {

    .summary-grid {
        grid-template-columns:
            repeat(
                2,
                1fr
            );
    }

    .pattern-grid {
        grid-template-columns:
            repeat(
                2,
                1fr
            );
    }
}

@media (
    max-width: 550px
) {

    .summary-grid,
    .pattern-grid {
        grid-template-columns: 1fr;
    }
}
.notation-card {
    background: #ffffff;
    border: 1px solid #dddddd;
    border-radius: 18px;
    padding: 30px;
    min-height: 250px;
}

.notation-container {
    width: 100%;
    min-height: 180px;
    direction: ltr;
}

.pattern-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 25px;
}

.secondary-button {
    width: auto;
    min-width: 150px;
}