.mailsec-checker-section {
    padding: 4.5rem 0 5rem;
    background: #fffaf8;
}

.mailsec-checker-intro {
    max-width: 760px;
    margin: 0 auto 2rem;
    text-align: center;
}

.mailsec-checker-intro p {
    color: #475569;
    line-height: 1.7;
}

.mailsec-checker-form {
    max-width: 760px;
    margin: 0 auto 1.5rem;
    background: #ffffff;
    border: 1px solid rgba(236, 72, 153, 0.16);
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: 0 12px 28px rgba(190, 24, 93, 0.08);
}

.mailsec-checker-label {
    display: block;
    font-weight: 600;
    color: #9f1239;
    margin-bottom: 0.65rem;
}

.mailsec-checker-input-row {
    display: flex;
    gap: 0.75rem;
}

.mailsec-checker-input-row input {
    flex: 1;
    min-width: 0;
    border: 1px solid rgba(249, 115, 22, 0.28);
    border-radius: 0.75rem;
    padding: 0.85rem 1rem;
    font: inherit;
}

.mailsec-checker-input-row input:focus {
    outline: 2px solid rgba(236, 72, 153, 0.35);
    outline-offset: 1px;
    border-color: rgba(236, 72, 153, 0.45);
}

.mailsec-checker-note {
    margin: 0.85rem 0 0;
    font-size: 0.8rem;
    color: #64748b;
}

.mailsec-checker-status {
    max-width: 760px;
    margin: 0 auto 1rem;
    padding: 0.9rem 1rem;
    border-radius: 0.75rem;
    background: rgba(249, 115, 22, 0.1);
    color: #9a3412;
    text-align: center;
}

.mailsec-checker-status.is-error {
    background: rgba(220, 38, 38, 0.1);
    color: #991b1b;
}

.mailsec-checker-results.is-hidden,
.mailsec-checker-status.is-hidden,
.mailsec-tips-card.is-hidden {
    display: none;
}

@property --score {
    syntax: '<number>';
    inherits: true;
    initial-value: 0;
}

.mailsec-checker-results {
    opacity: 0;
    transform: translateY(1.25rem);
}

.mailsec-checker-results.is-revealed {
    animation: mailsec-results-enter 0.7s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.mailsec-score-card {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1.5rem;
    align-items: center;
    max-width: 960px;
    margin: 0 auto 2rem;
    padding: 1.5rem;
    background: #ffffff;
    border: 1px solid rgba(236, 72, 153, 0.16);
    border-radius: 1rem;
    box-shadow: 0 12px 28px rgba(190, 24, 93, 0.08);
    opacity: 0;
    transform: translateY(1rem) scale(0.98);
}

.mailsec-checker-results.is-revealed .mailsec-score-card {
    animation: mailsec-block-enter 0.75s cubic-bezier(0.22, 1, 0.36, 1) 0.1s forwards;
}

.mailsec-score-ring {
    --score-color: #f97316;
    width: 9rem;
    height: 9rem;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(closest-side, #ffffff 74%, transparent 76% 100%),
        conic-gradient(var(--score-color) calc(var(--score, 0) * 1%), rgba(249, 115, 22, 0.15) 0);
    box-shadow: inset 0 0 0 1px rgba(236, 72, 153, 0.12);
    transform: scale(0.82);
    opacity: 0;
}

.mailsec-checker-results.is-revealed .mailsec-score-ring {
    animation: mailsec-ring-enter 0.85s cubic-bezier(0.34, 1.56, 0.64, 1) 0.2s forwards;
}

.mailsec-checker-results.is-score-done .mailsec-score-ring {
    box-shadow:
        inset 0 0 0 1px rgba(236, 72, 153, 0.12),
        0 0 0 6px rgba(249, 115, 22, 0.08);
}

.mailsec-score-value {
    font-size: 2rem;
    font-weight: 800;
    color: #9f1239;
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.mailsec-score-meta > * {
    opacity: 0;
    transform: translateY(0.65rem);
}

.mailsec-checker-results.is-revealed .mailsec-score-domain {
    animation: mailsec-meta-enter 0.6s ease 0.35s forwards;
}

.mailsec-checker-results.is-revealed .mailsec-score-grade {
    animation: mailsec-meta-enter 0.6s ease 0.45s forwards;
}

.mailsec-checker-results.is-revealed .mailsec-score-summary {
    animation: mailsec-meta-enter 0.6s ease 0.55s forwards;
}

.mailsec-checks-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    max-width: 960px;
    margin: 0 auto;
    position: relative;
    z-index: 0;
}

.mailsec-check-card {
    background: #ffffff;
    border: 1px solid rgba(249, 115, 22, 0.16);
    border-radius: 0.9rem;
    padding: 1.1rem 1.2rem;
    opacity: 0;
    transform: translateY(1.1rem) scale(0.98);
    position: relative;
    overflow: visible;
    z-index: 1;
}

.mailsec-check-card.is-help-open {
    z-index: 30;
}

.mailsec-checker-results.is-revealed .mailsec-check-card {
    animation: mailsec-check-enter 0.65s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    animation-delay: calc(0.45s + (var(--card-index, 0) * 0.08s));
}

.mailsec-tips-card {
    max-width: 960px;
    margin: 1.5rem auto 0;
    background: #ffffff;
    border: 1px solid rgba(236, 72, 153, 0.16);
    border-radius: 1rem;
    padding: 1.25rem 1.4rem;
    opacity: 0;
    transform: translateY(1rem);
}

.mailsec-checker-results.is-revealed .mailsec-tips-card:not(.is-hidden) {
    animation: mailsec-block-enter 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.75s forwards;
}

.mailsec-tips-card ul li {
    opacity: 0;
    transform: translateX(-0.4rem);
}

.mailsec-checker-results.is-revealed .mailsec-tips-card:not(.is-hidden) li {
    animation: mailsec-tip-enter 0.45s ease forwards;
    animation-delay: calc(0.95s + (var(--tip-index, 0) * 0.05s));
}

.mailsec-results-footer {
    max-width: 960px;
    margin: 1.5rem auto 0;
    opacity: 0;
    transform: translateY(1rem);
}

.mailsec-checker-results.is-revealed .mailsec-results-footer {
    animation: mailsec-block-enter 0.75s cubic-bezier(0.22, 1, 0.36, 1) 0.9s forwards;
}

@keyframes mailsec-results-enter {
    from {
        opacity: 0;
        transform: translateY(1.25rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes mailsec-block-enter {
    from {
        opacity: 0;
        transform: translateY(1rem) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes mailsec-ring-enter {
    from {
        opacity: 0;
        transform: scale(0.82) rotate(-18deg);
    }
    to {
        opacity: 1;
        transform: scale(1) rotate(0deg);
    }
}

@keyframes mailsec-meta-enter {
    from {
        opacity: 0;
        transform: translateY(0.65rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes mailsec-check-enter {
    from {
        opacity: 0;
        transform: translateY(1.1rem) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes mailsec-tip-enter {
    from {
        opacity: 0;
        transform: translateX(-0.4rem);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    .mailsec-checker-results,
    .mailsec-score-card,
    .mailsec-score-ring,
    .mailsec-score-meta > *,
    .mailsec-check-card,
    .mailsec-tips-card,
    .mailsec-tips-card li,
    .mailsec-results-footer {
        animation: none !important;
        opacity: 1 !important;
        transform: none !important;
    }
}

.mailsec-score-ring[data-grade="A"] { --score-color: #16a34a; }
.mailsec-score-ring[data-grade="B"] { --score-color: #65a30d; }
.mailsec-score-ring[data-grade="C"] { --score-color: #f59e0b; }
.mailsec-score-ring[data-grade="D"] { --score-color: #f97316; }
.mailsec-score-ring[data-grade="F"] { --score-color: #dc2626; }

.mailsec-score-label {
    font-size: 0.78rem;
    color: #64748b;
    margin-top: 0.25rem;
}

.mailsec-score-domain {
    font-size: 1.2rem;
    font-weight: 700;
    color: #9f1239;
    margin-bottom: 0.35rem;
}

.mailsec-score-grade {
    color: #475569;
    margin-bottom: 0.5rem;
}

.mailsec-score-summary {
    color: #475569;
    line-height: 1.65;
    margin: 0;
}

.mailsec-check-card[data-status="pass"] {
    border-color: rgba(22, 163, 74, 0.28);
}

.mailsec-check-card[data-status="warn"] {
    border-color: rgba(245, 158, 11, 0.35);
}

.mailsec-check-card[data-status="fail"] {
    border-color: rgba(220, 38, 38, 0.35);
}

.mailsec-check-card[data-status="info"] {
    border-color: rgba(100, 116, 139, 0.25);
}

.mailsec-check-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.55rem;
}

.mailsec-check-title-wrap {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    min-width: 0;
}

.mailsec-check-header h3 {
    margin: 0;
    font-size: 1.05rem;
    color: #9f1239;
}

.mailsec-check-card[data-status="pass"] .mailsec-check-header h3 {
    color: #166534;
}

.mailsec-check-card[data-status="warn"] .mailsec-check-header h3 {
    color: #c2410c;
}

.mailsec-check-card[data-status="fail"] .mailsec-check-header h3 {
    color: #991b1b;
}

.mailsec-check-card[data-status="info"] .mailsec-check-header h3 {
    color: #475569;
}

.mailsec-check-help {
    position: relative;
    flex-shrink: 0;
}

.mailsec-check-help-btn {
    width: 1.35rem;
    height: 1.35rem;
    border: 0;
    border-radius: 50%;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(249, 115, 22, 0.12);
    color: #c2410c;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.mailsec-check-help-btn:hover,
.mailsec-check-help.is-open .mailsec-check-help-btn {
    background: rgba(236, 72, 153, 0.16);
    color: #9f1239;
}

.mailsec-check-help-btn:focus-visible {
    outline: 2px solid rgba(236, 72, 153, 0.45);
    outline-offset: 2px;
}

.mailsec-check-help-btn i {
    font-size: 0.82rem;
}

.mailsec-check-popover {
    position: absolute;
    top: calc(100% + 0.45rem);
    left: 50%;
    transform: translateX(-50%);
    z-index: 40;
    width: min(17.5rem, calc(100vw - 2.5rem));
    padding: 0.75rem 0.85rem;
    border-radius: 0.75rem;
    border: 1px solid rgba(236, 72, 153, 0.2);
    background: #ffffff;
    box-shadow: 0 14px 30px rgba(190, 24, 93, 0.14);
}

.mailsec-check-popover::before {
    content: "";
    position: absolute;
    top: -0.35rem;
    left: 50%;
    width: 0.65rem;
    height: 0.65rem;
    background: #ffffff;
    border-left: 1px solid rgba(236, 72, 153, 0.2);
    border-top: 1px solid rgba(236, 72, 153, 0.2);
    transform: translateX(-50%) rotate(45deg);
}

.mailsec-check-popover-title {
    margin: 0 0 0.35rem;
    font-size: 0.82rem;
    font-weight: 700;
    color: #9f1239;
}

.mailsec-check-popover-text {
    margin: 0;
    font-size: 0.8rem;
    line-height: 1.55;
    color: #475569;
}

.mailsec-check-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.mailsec-check-badge[data-status="pass"] {
    background: rgba(22, 163, 74, 0.12);
    color: #166534;
}

.mailsec-check-badge[data-status="warn"] {
    background: rgba(245, 158, 11, 0.14);
    color: #92400e;
}

.mailsec-check-badge[data-status="fail"] {
    background: rgba(220, 38, 38, 0.12);
    color: #991b1b;
}

.mailsec-check-badge[data-status="info"] {
    background: rgba(100, 116, 139, 0.12);
    color: #334155;
}

.mailsec-check-summary {
    margin: 0 0 0.65rem;
    color: #475569;
    line-height: 1.55;
}

.mailsec-check-points {
    font-size: 0.85rem;
    color: #64748b;
    margin-bottom: 0.65rem;
}

.mailsec-check-details {
    margin: 0;
    padding-left: 1rem;
    color: #334155;
    font-size: 0.88rem;
    line-height: 1.5;
    word-break: break-word;
}

.mailsec-check-details li + li {
    margin-top: 0.35rem;
}

.mailsec-tips-card h3 {
    margin: 0 0 0.75rem;
    color: #9f1239;
}

.mailsec-tips-card ul {
    margin: 0;
    padding-left: 1.2rem;
    color: #475569;
    line-height: 1.65;
}

.mailsec-tips-card li + li {
    margin-top: 0.45rem;
}

.mailsec-results-warning {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1rem;
    align-items: start;
    padding: 1.2rem 1.35rem;
    border-radius: 1rem;
    border: 1px solid rgba(220, 38, 38, 0.2);
    background: linear-gradient(135deg, rgba(254, 242, 242, 0.9) 0%, rgba(255, 247, 237, 0.92) 100%);
}

.mailsec-results-warning > i {
    font-size: 1.5rem;
    color: #dc2626;
    margin-top: 0.15rem;
}

.mailsec-results-warning h3 {
    margin: 0 0 0.45rem;
    color: #9f1239;
    font-size: 1.1rem;
}

.mailsec-results-warning p {
    margin: 0;
    color: #475569;
    line-height: 1.65;
}

.mailsec-results-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin-top: 1.25rem;
}

@media (max-width: 800px) {
    .mailsec-checker-input-row {
        flex-direction: column;
    }

    .mailsec-score-card {
        grid-template-columns: 1fr;
        text-align: center;
        justify-items: center;
    }

    .mailsec-checks-grid {
        grid-template-columns: 1fr;
    }

    .mailsec-results-warning {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .mailsec-results-warning > i {
        margin: 0 auto;
    }

    .mailsec-results-actions {
        flex-direction: column;
        align-items: stretch;
    }
}