.email-send-progress-overlay {
    position: fixed;
    inset: 0;
    z-index: 30000;
    display: grid;
    place-items: center;
    box-sizing: border-box;
    padding: max(1rem, env(safe-area-inset-top)) max(1rem, env(safe-area-inset-right)) max(1rem, env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left));
    background: rgba(15, 23, 42, 0.58);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
}

.email-send-progress-overlay[hidden] {
    display: none;
}

body.email-send-page-locked {
    overflow: hidden;
}

.email-send-progress {
    display: grid;
    gap: 0.45rem;
    width: min(30rem, 100%);
    box-sizing: border-box;
    padding: 1.15rem;
    border: 1px solid color-mix(in srgb, var(--primary) 28%, var(--border));
    border-radius: 1rem;
    background: var(--surface);
    box-shadow: 0 24px 70px rgba(15, 23, 42, 0.34);
}

.email-send-progress-eyebrow {
    color: var(--primary);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.email-send-progress-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    color: var(--text);
}

.email-send-progress-head span {
    flex: 0 0 auto;
    color: var(--primary);
    font-weight: 800;
}

.email-send-progress-track {
    position: relative;
    height: 0.55rem;
    overflow: hidden;
    border-radius: 999px;
    background: color-mix(in srgb, var(--primary) 14%, var(--surface));
}

.email-send-progress-track span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: var(--primary);
    transition: width 180ms ease;
}

.email-send-progress small {
    color: var(--text-secondary);
    line-height: 1.35;
}

.email-send-progress-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 0.35rem;
}

.email-send-progress-actions[hidden] {
    display: none;
}

.email-send-progress-actions .btn {
    min-width: 7.5rem;
}

.email-send-progress.is-indeterminate .email-send-progress-track span {
    position: absolute;
    left: -38%;
    width: 38% !important;
    animation: email-send-progress-slide 1.15s ease-in-out infinite;
}

.email-send-progress.is-success {
    border-color: color-mix(in srgb, #15803d 40%, var(--border));
    background: color-mix(in srgb, #15803d 7%, var(--surface));
}

.email-send-progress.is-success .email-send-progress-track span {
    background: #15803d;
}

.email-send-progress.is-success .email-send-progress-head span {
    color: #15803d;
}

.email-send-progress.is-error {
    border-color: color-mix(in srgb, #b91c1c 42%, var(--border));
    background: color-mix(in srgb, #b91c1c 7%, var(--surface));
}

.email-send-progress.is-error .email-send-progress-track span {
    background: #b91c1c;
}

.email-send-progress.is-error .email-send-progress-head span {
    color: #b91c1c;
}

.modal.email-send-locked .modal-close,
.modal.email-send-locked .modal-back {
    cursor: not-allowed;
    opacity: 0.38;
}

@keyframes email-send-progress-slide {
    0% { left: -38%; }
    55% { left: 45%; }
    100% { left: 100%; }
}

@media (prefers-reduced-motion: reduce) {
    .email-send-progress.is-indeterminate .email-send-progress-track span {
        animation-duration: 2.5s;
    }
}

@media (max-width: 520px) {
    .email-send-progress-overlay {
        align-items: center;
        padding: 0.8rem;
    }

    .email-send-progress {
        padding: 1rem;
    }

    .email-send-progress-actions .btn {
        width: 100%;
    }
}