.billing-page {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-height: 0;
    background: linear-gradient(180deg, #f7fbff 0%, #eef4fb 100%);
}

.billing-page .billing-shell {
    flex: 1;
    overflow: auto;
    padding: clamp(1.25rem, 2.2vw, 2rem);
}

.billing-page .billing-stack {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 1120px;
    margin: 0 auto;
}

.billing-page .billing-hero,
.billing-page .billing-card,
.billing-page .billing-cycle-card {
    border: 1px solid rgba(32, 56, 95, 0.12);
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 0.55rem 1.4rem rgba(30, 64, 175, 0.08);
}

.billing-page .billing-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.8fr) minmax(16rem, 1fr);
    gap: 1rem;
    padding: clamp(1.25rem, 2vw, 1.7rem);
}

.billing-page .billing-eyebrow {
    margin: 0;
    color: #1d4ed8;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.billing-page .billing-title {
    margin: 0.35rem 0 0;
    color: #0f172a;
    font-size: clamp(1.4rem, 1.1vw + 1rem, 2rem);
    line-height: 1.08;
}

.billing-page .billing-copy {
    margin: 0.55rem 0 0;
    color: #47688f;
    font-size: 0.95rem;
    line-height: 1.65;
}

.billing-page .billing-chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    align-self: start;
}

.billing-page .billing-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.4rem;
    padding: 0.55rem 0.95rem;
    border-radius: 999px;
    font-size: 0.84rem;
    font-weight: 700;
    color: #20385f;
    background: #e2e8f0;
}

.billing-page .billing-chip-primary {
    color: #0f172a;
    background: #facc15;
}

.billing-page .billing-alert {
    padding: 0.9rem 1rem;
    border: 1px solid rgba(30, 64, 175, 0.18);
    border-radius: 0.9rem;
    color: #19324f;
    background: rgba(219, 234, 254, 0.82);
    font-size: 0.92rem;
    line-height: 1.55;
}

.billing-page .billing-alert-error {
    border-color: rgba(185, 28, 28, 0.18);
    color: #991b1b;
    background: rgba(254, 226, 226, 0.9);
}

.billing-page .billing-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(18rem, 0.8fr);
    gap: 1rem;
}

.billing-page .billing-card,
.billing-page .billing-cycle-card {
    padding: 1.1rem 1.15rem;
}

.billing-page .billing-card h2,
.billing-page .billing-cycle-card h2 {
    margin: 0;
    color: #20385f;
    font-size: 1.05rem;
    font-weight: 700;
}

.billing-page .billing-card > p,
.billing-page .billing-cycle-card > p {
    margin: 0.4rem 0 0;
    color: #547195;
    font-size: 0.9rem;
    line-height: 1.55;
}

.billing-page .billing-status-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.8rem;
    margin-top: 1rem;
}

.billing-page .billing-status-card {
    margin: 0;
    padding: 0.9rem;
    border-radius: 0.85rem;
    background: #f8fbff;
    border: 1px solid rgba(71, 104, 143, 0.14);
}

.billing-page .billing-status-card dt {
    color: #6480a3;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.billing-page .billing-status-card dd {
    margin: 0.35rem 0 0;
    color: #20385f;
    font-size: 0.96rem;
    font-weight: 700;
    line-height: 1.35;
}

.billing-page .billing-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-top: 1rem;
}

.billing-page .billing-button,
.billing-page .billing-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.7rem;
    padding: 0.65rem 1rem;
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}

.billing-page .billing-button {
    border: 0;
    color: #fff;
    background: linear-gradient(135deg, #20385f, #315a93);
    cursor: pointer;
}

.billing-page .billing-link {
    color: #20385f;
    background: #facc15;
}

.billing-page .billing-link-muted {
    color: #315a93;
    background: #e8f0fb;
}

.billing-page .billing-button:hover,
.billing-page .billing-link:hover {
    transform: translateY(-1px);
    box-shadow: 0 0.55rem 1rem rgba(32, 56, 95, 0.14);
}

.billing-page .billing-cycles {
    display: grid;
    gap: 0.8rem;
    margin-top: 1rem;
}

.billing-page .billing-cycle-card-active {
    border-color: rgba(29, 78, 216, 0.24);
    background: linear-gradient(180deg, rgba(219, 234, 254, 0.82), rgba(255, 255, 255, 0.96));
}

.billing-page .billing-cycle-meta {
    display: flex;
    justify-content: space-between;
    gap: 0.8rem;
    align-items: baseline;
}

.billing-page .billing-cycle-meta strong {
    color: #0f172a;
    font-size: 1rem;
}

.billing-page .billing-cycle-price {
    color: #1d4ed8;
    font-size: 0.94rem;
    font-weight: 700;
}

.billing-page .billing-cycle-card p {
    margin: 0.45rem 0 0;
}

.billing-page .billing-empty-note {
    margin-top: 1rem;
    color: #92400e;
    font-size: 0.9rem;
    line-height: 1.55;
}

@media (max-width: 64rem) {
    .billing-page .billing-hero,
    .billing-page .billing-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 40rem) {
    .billing-page .billing-shell {
        padding: 1rem;
    }

    .billing-page .billing-status-grid {
        grid-template-columns: 1fr;
    }

    .billing-page .billing-actions {
        flex-direction: column;
    }

    .billing-page .billing-button,
    .billing-page .billing-link {
        width: 100%;
    }
}