.ui-toast-host {
    position: fixed;
    top: 18px;
    left: 0;
    right: 0;
    z-index: 1600;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    pointer-events: none;
}

.ui-toast-stack {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
}

.ui-toast {
    min-width: 280px;
    max-width: 420px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 14px;
    border-radius: 16px;
    border: 1px solid #e5e7eb;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 18px 40px rgba(17, 24, 39, 0.08);
    backdrop-filter: blur(12px);
    color: #111827;
    transform: translateY(-10px) scale(0.98);
    opacity: 0;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.ui-toast.is-visible {
    transform: translateY(0) scale(1);
    opacity: 1;
}

.ui-toast-icon {
    width: 20px;
    height: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 1px;
}

.ui-toast-success .ui-toast-icon {
    color: #16a34a;
}

.ui-toast-error .ui-toast-icon {
    color: #dc2626;
}

.ui-toast-text {
    font-size: 13px;
    line-height: 1.5;
    color: #111827;
    word-break: break-word;
}

.ui-confirm {
    position: fixed;
    inset: 0;
    z-index: 1650;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ui-confirm.hidden {
    display: none;
}

.ui-confirm-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(17, 24, 39, 0.28);
    backdrop-filter: blur(4px);
}

.ui-confirm-card {
    position: relative;
    z-index: 1;
    width: min(420px, 92vw);
    border-radius: 20px;
    border: 1px solid #e5e7eb;
    background: #fff;
    box-shadow: 0 24px 60px rgba(17, 24, 39, 0.14);
    overflow: hidden;
}

.ui-confirm-header {
    padding: 18px 20px 8px;
}

.ui-confirm-title {
    font-size: 16px;
    font-weight: 600;
    color: #111827;
}

.ui-confirm-body {
    padding: 0 20px 18px;
    font-size: 13px;
    line-height: 1.7;
    color: #4b5563;
}

.ui-confirm-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 16px 20px;
    border-top: 1px solid #eef0f3;
    background: #fafafa;
}

.ui-btn {
    height: 38px;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    background: #fff;
    color: #374151;
    padding: 0 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
}

.ui-btn:hover {
    background: #f3f4f6;
}

.ui-btn-primary {
    border-color: #dbe2f4;
    background: #4f46e5;
    color: #fff;
}

.ui-btn-primary:hover {
    background: #4338ca;
}

.ui-modal {
    position: fixed;
    inset: 0;
    z-index: 1655;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.ui-modal.hidden {
    display: none;
}

.ui-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(17, 24, 39, 0.32);
    backdrop-filter: blur(6px);
}

.ui-modal-card {
    position: relative;
    z-index: 1;
    width: min(760px, 94vw);
    max-height: min(88vh, 920px);
    overflow: hidden;
    border-radius: 24px;
    border: 1px solid #e5e7eb;
    background: #ffffff;
    box-shadow: 0 28px 80px rgba(17, 24, 39, 0.18);
}

.ui-modal-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 22px 10px;
    border-bottom: 1px solid #eef0f3;
}

.ui-modal-title {
    font-size: 18px;
    font-weight: 700;
    color: #111827;
}

.ui-modal-subtitle {
    margin-top: 6px;
    font-size: 13px;
    line-height: 1.6;
    color: #6b7280;
}

.ui-modal-close {
    width: 38px;
    height: 38px;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    background: #fff;
    color: #6b7280;
    cursor: pointer;
}

.ui-modal-close:hover {
    background: #f3f4f6;
}

.ui-modal-body {
    padding: 20px 22px 22px;
    overflow-y: auto;
    max-height: calc(88vh - 80px);
}

.invite-modal-card {
    width: min(760px, 94vw);
}

.invite-loading,
.invite-empty,
.invite-qr-fallback {
    padding: 28px 16px;
    border-radius: 18px;
    border: 1px dashed #dbe2ea;
    background: #f8fafc;
    text-align: center;
    color: #6b7280;
    font-size: 14px;
}

.invite-summary-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 20px;
    border-radius: 20px;
    background: linear-gradient(135deg, #f8fbff 0%, #f5f7ff 100%);
    border: 1px solid #dbe6ff;
}

.invite-summary-main {
    display: flex;
    align-items: center;
    gap: 14px;
}

.invite-summary-count {
    font-size: 36px;
    line-height: 1;
    font-weight: 800;
    color: #111827;
}

.invite-summary-label {
    font-size: 13px;
    color: #6b7280;
}

.invite-summary-hint {
    margin-top: 4px;
    font-size: 14px;
    font-weight: 600;
    color: #3b82f6;
}

.invite-summary-code {
    padding: 8px 12px;
    border-radius: 999px;
    background: #ffffff;
    border: 1px solid #dbe2ea;
    font-size: 12px;
    font-weight: 700;
    color: #111827;
}

.invite-rule-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-top: 16px;
}

.invite-rule-item {
    padding: 14px 16px;
    border-radius: 18px;
    border: 1px solid #e5e7eb;
    background: #ffffff;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.invite-rule-item span {
    font-size: 13px;
    color: #6b7280;
}

.invite-rule-item strong {
    font-size: 16px;
    color: #111827;
}

.invite-rule-item.is-reached {
    border-color: #bfdbfe;
    background: #eff6ff;
}

.invite-share-grid {
    display: grid;
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 18px;
    margin-top: 16px;
}

.invite-qr-wrap,
.invite-share-panel,
.invite-recent-block {
    padding: 18px;
    border-radius: 20px;
    border: 1px solid #e5e7eb;
    background: #ffffff;
}

.invite-qr {
    width: 168px;
    height: 168px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 18px;
    background: #ffffff;
    border: 1px solid #eef0f3;
}

.invite-qr img,
.invite-qr canvas {
    max-width: 100%;
    max-height: 100%;
    border-radius: 12px;
}

.invite-qr-text {
    margin-top: 12px;
    text-align: center;
    font-size: 12px;
    color: #6b7280;
}

.invite-share-title,
.invite-recent-title {
    font-size: 14px;
    font-weight: 700;
    color: #111827;
}

.invite-share-link {
    margin-top: 12px;
    padding: 12px 14px;
    border-radius: 14px;
    background: #f8fafc;
    border: 1px solid #e5e7eb;
    font-size: 13px;
    line-height: 1.6;
    color: #111827;
    word-break: break-all;
}

.invite-share-copytext {
    margin-top: 10px;
    font-size: 13px;
    color: #6b7280;
}

.invite-share-actions {
    display: flex;
    gap: 10px;
    margin-top: 14px;
}

.invite-recent-block {
    margin-top: 16px;
}

.invite-recent-list {
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.invite-recent-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 14px;
    border-radius: 16px;
    background: #f8fafc;
    border: 1px solid #eef0f3;
}

.invite-recent-main {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.invite-recent-main strong {
    font-size: 14px;
    color: #111827;
}

.invite-recent-main span,
.invite-recent-meta time {
    font-size: 12px;
    color: #6b7280;
}

.invite-recent-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.invite-reward-chip {
    padding: 4px 8px;
    border-radius: 999px;
    background: #eef4ff;
    color: #2563eb;
    font-size: 11px;
    font-weight: 700;
}

@media (max-width: 768px) {
    .ui-modal {
        padding: 14px 14px calc(82px + env(safe-area-inset-bottom, 0px));
        align-items: flex-end;
    }

    .ui-modal-card {
        width: 100%;
        max-height: 86vh;
        border-radius: 24px;
    }

    .ui-modal-body {
        max-height: calc(86vh - 80px);
        padding: 16px;
    }

    .invite-summary-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .invite-rule-grid {
        grid-template-columns: 1fr;
    }

    .invite-share-grid {
        grid-template-columns: 1fr;
    }

    .invite-share-actions {
        flex-direction: column;
    }

    .invite-recent-item {
        flex-direction: column;
        align-items: flex-start;
    }

    .invite-recent-meta {
        justify-content: flex-start;
    }
}