.memberships-page { max-width: 1400px; }

/* ---- Membership Stats ---- */
.membership-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

/* ---- Tier Cards ---- */
.tier-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.tier-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
    transition: all var(--transition-base);
    cursor: pointer;
}

/* Gradient border effect */
.tier-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    padding: 1px;
    background: linear-gradient(135deg, var(--border-subtle), var(--border-subtle));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    transition: background var(--transition-base);
}

.tier-card:hover::before {
    background: linear-gradient(135deg, var(--brand-cyan), var(--brand-purple));
}

.tier-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Tier variants with distinct gradient borders */
.tier-card--basic::before {
    background: linear-gradient(135deg, #6B7280, #9CA3AF);
}

.tier-card--pro::before {
    background: linear-gradient(135deg, var(--brand-cyan), var(--accent-green));
}

.tier-card--premium::before {
    background: linear-gradient(135deg, var(--brand-purple), var(--brand-magenta));
}

.tier-card--vip::before {
    background: linear-gradient(135deg, #F59E0B, #EF4444, var(--brand-magenta));
}

.tier-card--featured {
    box-shadow: 0 0 30px rgba(139, 92, 246, 0.1);
}

.tier-card--featured::before {
    padding: 2px;
}

.tier-card__ribbon {
    position: absolute;
    top: 16px;
    right: -30px;
    background: var(--brand-gradient);
    color: white;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 4px 40px;
    transform: rotate(45deg);
    z-index: 2;
}

.tier-card__header {
    padding: var(--space-lg) var(--space-lg) var(--space-md);
    text-align: center;
}

.tier-card__icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-md);
    font-size: var(--text-2xl);
}

.tier-card__icon--basic { background: rgba(107, 114, 128, 0.15); }
.tier-card__icon--pro { background: rgba(6, 182, 212, 0.15); }
.tier-card__icon--premium { background: rgba(139, 92, 246, 0.15); }
.tier-card__icon--vip { background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(217, 70, 239, 0.15)); }

.tier-card__name {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.tier-card__desc {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    line-height: 1.5;
}

.tier-card__pricing {
    padding: var(--space-md) var(--space-lg);
    text-align: center;
}

.tier-card__price {
    font-size: var(--text-3xl);
    font-weight: 800;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.02em;
}

.tier-card__price-currency {
    font-size: var(--text-lg);
    font-weight: 600;
    vertical-align: super;
}

.tier-card__price-period {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    font-weight: 400;
}

.tier-card__subscribers {
    font-size: var(--text-xs);
    color: var(--text-secondary);
    margin-top: var(--space-xs);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.tier-card__features {
    padding: var(--space-md) var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.tier-card__feature {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.tier-card__feature svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    color: var(--accent-green);
}

.tier-card__feature--disabled {
    color: var(--text-tertiary);
    opacity: 0.5;
}

.tier-card__feature--disabled svg {
    color: var(--text-tertiary);
}

.tier-card__footer {
    padding: var(--space-md) var(--space-lg) var(--space-lg);
}

.tier-card__mrr {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
}

.tier-card__mrr-label {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tier-card__mrr-value {
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--accent-green);
    font-variant-numeric: tabular-nums;
}

/* ---- Subscriber List ---- */
.subscriber-list {
    margin-top: var(--space-xl);
}

.subscriber-row {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid var(--border-subtle);
    transition: background var(--transition-fast);
}

.subscriber-row:hover {
    background: var(--bg-tertiary);
}

.subscriber-row__info {
    flex: 1;
    min-width: 0;
}

.subscriber-row__name {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.subscriber-row__email {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
}

.subscriber-row__tier {
    min-width: 100px;
}

.subscriber-row__joined {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    min-width: 80px;
    text-align: right;
}

.subscriber-row__revenue {
    font-size: var(--text-sm);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    min-width: 90px;
    text-align: right;
}

/* ---- Tier Builder / Editor ---- */
.tier-builder {
    max-width: 700px;
}

.tier-builder__preview {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    margin-bottom: var(--space-xl);
    text-align: center;
}

.tier-builder__form {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.tier-builder__color-picker {
    display: flex;
    gap: var(--space-sm);
}

.tier-builder__color-swatch {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-fast);
}

.tier-builder__color-swatch:hover { transform: scale(1.1); }
.tier-builder__color-swatch--active { border-color: white; box-shadow: 0 0 0 2px var(--border-focus); }

.tier-builder__features-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.tier-builder__feature-row {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.tier-builder__feature-row .input {
    flex: 1;
}

.tier-builder__feature-remove {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    transition: all var(--transition-fast);
    cursor: pointer;
    flex-shrink: 0;
}

.tier-builder__feature-remove:hover {
    background: rgba(239, 68, 68, 0.1);
    color: #EF4444;
}

/* Churn indicator */
.churn-indicator {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--text-xs);
    font-weight: 500;
}

.churn-indicator--low { color: var(--accent-green); }
.churn-indicator--medium { color: #F59E0B; }
.churn-indicator--high { color: #EF4444; }

/* Responsive */
@media (max-width: 1200px) {
    .membership-stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .tier-grid { grid-template-columns: 1fr; }
    .membership-stats { grid-template-columns: 1fr; }
}