/* Site-wide form submit feedback — spinners, overlays, reduced motion */

@keyframes form-feedback-spin {
    to {
        transform: rotate(360deg);
    }
}

.btn:not(.btn--loading) > .btn__spinner,
.btn__spinner,
.form-feedback-overlay__spinner {
    display: none;
    width: 1.1rem;
    height: 1.1rem;
    flex-shrink: 0;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    opacity: 0.85;
    animation: form-feedback-spin 0.75s linear infinite;
}

.btn--loading .btn__spinner,
.checkout-submit.btn--loading .btn__spinner {
    display: inline-block;
}

.btn--loading {
    pointer-events: none;
    cursor: wait;
}

.btn.btn--loading,
.checkout-submit.btn--loading {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
}

.btn.btn--loading .btn__spinner {
    border-color: #cbd5e1;
    border-top-color: #2563eb;
}

.btn--icon-only.btn--loading .btn__icon {
    display: none;
}

.checkout-submit.btn--loading {
    transform: none;
    cursor: wait;
    pointer-events: none;
}

.checkout-submit.btn--loading .checkout-submit__arrow {
    display: none;
}

.form-feedback-host {
    position: relative;
}

.form-feedback--active {
    pointer-events: none;
}

.form-feedback-page-progress {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 10050;
    height: 3px;
    width: 0;
    background: linear-gradient(90deg, #2563eb, #22d3ee);
    box-shadow: 0 0 14px rgba(37, 99, 235, 0.45);
    pointer-events: none;
    opacity: 0;
    transition: width 0.35s ease-out, opacity 0.12s ease-out;
}

.form-feedback-page-progress.is-active {
    opacity: 1;
}

body.form-feedback-page-busy {
    cursor: wait;
}

.form-feedback-overlay {
    position: absolute;
    inset: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    border-radius: inherit;
    background: rgba(248, 250, 252, 0.82);
    backdrop-filter: blur(4px);
}

.form-feedback-overlay[hidden] {
    display: none !important;
}

.form-feedback-overlay__card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.65rem;
    max-width: 18rem;
    padding: 1rem 1.25rem;
    border: 1px solid #e2e8f0;
    border-radius: 0.75rem;
    background: #fff;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.1);
    text-align: center;
}

.form-feedback-overlay__spinner {
    display: inline-block;
    border-color: #cbd5e1;
    border-top-color: #0891b2;
}

.form-feedback-overlay__title {
    margin: 0;
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.45;
    color: #334155;
}

.checkout-step--processing .checkout-step__marker {
    animation: form-feedback-pulse 1.2s ease-in-out infinite;
}

@keyframes form-feedback-pulse {
    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.65;
        transform: scale(0.94);
    }
}

.mk-scroll-progress--submit {
    transition: width 0.45s ease-out;
    box-shadow: 0 0 16px rgba(34, 211, 238, 0.65);
}

.mk-marketing-body .form-feedback-overlay {
    background: rgba(11, 18, 32, 0.55);
    backdrop-filter: blur(6px);
}

.mk-marketing-body .form-feedback-overlay__card {
    border-color: rgba(255, 255, 255, 0.12);
    background: rgba(21, 29, 46, 0.95);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
}

.mk-marketing-body .form-feedback-overlay__title {
    color: #e2e8f0;
}

.mk-marketing-body .form-feedback-overlay__spinner {
    border-color: rgba(148, 163, 184, 0.45);
    border-top-color: #22d3ee;
}

@media (prefers-reduced-motion: reduce) {
    .btn__spinner,
    .form-feedback-overlay__spinner {
        animation: none;
        border-right-color: currentColor;
        opacity: 0.7;
    }

    .checkout-step--processing .checkout-step__marker {
        animation: none;
    }

    .mk-scroll-progress--submit {
        transition: none;
    }
}

[data-theme="dark"] body.app-body .form-feedback-overlay {
    background: var(--overlay);
}

[data-theme="dark"] body.app-body .form-feedback-overlay__card {
    border-color: var(--border);
    background: var(--surface);
    box-shadow: var(--shadow-md);
}

[data-theme="dark"] body.app-body .form-feedback-overlay__title {
    color: var(--text);
}

[data-theme="dark"] body.app-body .form-feedback-overlay__spinner,
[data-theme="dark"] body.app-body .btn.btn--loading .btn__spinner {
    border-color: var(--border-strong);
    border-top-color: var(--primary);
}