.plan-upgrade-overlay {
    position: fixed;
    inset: 0;
    z-index: 100000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.plan-upgrade-overlay.is-visible {
    display: flex;
}

.plan-upgrade-overlay__backdrop {
    position: absolute;
    inset: 0;
    border: none;
    background: rgba(15, 23, 42, 0.78);
    backdrop-filter: blur(4px);
    cursor: pointer;
}

.plan-upgrade-modal {
    position: relative;
    z-index: 1;
    width: min(100%, 32rem);
    max-height: calc(100vh - 2rem);
    overflow: auto;
    border-radius: 1rem;
    border: 1px solid hsl(var(--border) / 0.8);
    background: hsl(var(--card));
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.35);
}

body.plan-upgrade-modal-locked {
    overflow: hidden;
}

.plan-upgrade-modal__hero {
    position: relative;
    padding: 2rem 2rem 1.25rem;
    background: linear-gradient(135deg, hsl(var(--primary) / 0.16), hsl(var(--accent) / 0.12));
    text-align: center;
}

.plan-upgrade-modal__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 4.5rem;
    height: 4.5rem;
    border-radius: 9999px;
    overflow: hidden;
    background: hsl(var(--background));
    border: 3px solid hsl(var(--primary) / 0.25);
    box-shadow: 0 12px 30px hsl(var(--primary) / 0.25);
}

.plan-upgrade-modal__icon-image {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.plan-upgrade-modal__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 9999px;
    border: 1px solid hsl(var(--border) / 0.7);
    background: hsl(var(--background) / 0.85);
    color: hsl(var(--muted-foreground));
    cursor: pointer;
}

.plan-upgrade-modal__close:hover {
    color: hsl(var(--foreground));
    background: hsl(var(--background));
}

.plan-upgrade-modal__body {
    padding: 1.5rem 2rem 2rem;
}

.plan-upgrade-modal__eyebrow {
    margin: 0 0 0.5rem;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: hsl(var(--primary));
}

.plan-upgrade-modal__title {
    margin: 0 0 0.75rem;
    font-family: var(--font-serif, ui-serif, Georgia, serif);
    font-size: 1.75rem;
    line-height: 1.2;
    font-weight: 700;
    color: hsl(var(--foreground));
}

.plan-upgrade-modal__message {
    margin: 0 0 1rem;
    font-size: 1rem;
    line-height: 1.6;
    color: hsl(var(--foreground));
}

.plan-upgrade-modal__plan {
    margin: 0 0 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.75rem;
    border-radius: 9999px;
    background: hsl(var(--muted));
    font-size: 0.8125rem;
    color: hsl(var(--muted-foreground));
}

.plan-upgrade-modal__plan.hidden {
    display: none;
}

.plan-upgrade-modal__plan strong {
    color: hsl(var(--foreground));
    font-weight: 600;
}

.plan-upgrade-modal__hint {
    margin: 0 0 1.5rem;
    font-size: 0.875rem;
    line-height: 1.5;
    color: hsl(var(--muted-foreground));
}

.plan-upgrade-modal__actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.plan-upgrade-modal__cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 3rem;
    border-radius: 0.75rem;
    background: hsl(var(--primary));
    color: hsl(var(--primary-foreground));
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    box-shadow: 0 10px 24px hsl(var(--primary) / 0.28);
    transition: transform 0.15s ease, opacity 0.15s ease;
}

.plan-upgrade-modal__cta:hover {
    opacity: 0.95;
    transform: translateY(-1px);
}

.plan-upgrade-modal__secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.75rem;
    border-radius: 0.75rem;
    border: 1px solid hsl(var(--border));
    background: hsl(var(--background));
    color: hsl(var(--foreground));
    font-size: 0.9375rem;
    font-weight: 500;
    text-decoration: none;
}

.plan-upgrade-modal__secondary:hover {
    background: hsl(var(--muted) / 0.45);
}

.plan-upgrade-modal__later {
    border: none;
    background: transparent;
    color: hsl(var(--muted-foreground));
    font-size: 0.875rem;
    cursor: pointer;
    padding: 0.35rem;
}

.plan-upgrade-modal__later:hover {
    color: hsl(var(--foreground));
}

.plan-upgrade-inline {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem 1.25rem;
    border-radius: 0.875rem;
    border: 1px solid hsl(var(--primary) / 0.25);
    background: hsl(var(--primary) / 0.06);
}

@media (min-width: 640px) {
    .plan-upgrade-inline {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

.plan-upgrade-inline__title {
    margin: 0 0 0.25rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: hsl(var(--primary));
}

.plan-upgrade-inline__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.5rem;
    padding: 0 1rem;
    border: none;
    border-radius: 0.625rem;
    background: hsl(var(--primary));
    color: hsl(var(--primary-foreground));
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
}

.plan-upgrade-inline__btn:hover {
    opacity: 0.92;
}