/*== Captcha Modal ==*/

.cap-overlay,
.cap-help-overlay {
    position: fixed;
    inset: 0;
    z-index: 12000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(15, 23, 42, 0.58);
    backdrop-filter: blur(10px);
}

.cap-overlay[hidden],
.cap-help-overlay[hidden] {
    display: none;
}

.cap-modal,
.cap-help-modal {
    width: min(100%, 520px);
    max-height: calc(100vh - 48px);
    overflow: hidden;
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    background: var(--card);
    color: var(--text);
    box-shadow: var(--shadow-lg);
}

.cap-help-modal {
    width: min(100%, 860px);
}

.cap-header,
.cap-help-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 20px;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(135deg, rgba(255, 122, 24, 0.08), rgba(229, 57, 53, 0.06));
}

.cap-title,
.cap-help-title {
    color: var(--text);
    font-size: 1.05rem;
    font-weight: 900;
    letter-spacing: -0.03em;
}

.cap-close,
.cap-help-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    width: 36px;
    height: 36px;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: #fff;
    color: var(--text);
    font-size: 1.4rem;
    line-height: 1;
    cursor: pointer;
    transition:
            background 0.2s ease,
            color 0.2s ease,
            border-color 0.2s ease,
            transform 0.2s ease;
}

.cap-close:hover,
.cap-help-close:hover {
    transform: translateY(-1px);
    border-color: rgba(255, 122, 24, 0.35);
    background: rgba(255, 122, 24, 0.08);
    color: var(--primary);
}

.cap-prompt {
    padding: 22px 22px 0;
    color: var(--text);
    font-size: 1rem;
    font-weight: 800;
    line-height: 1.45;
    text-align: center;
}

.captcha-help-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 14px 10px 0;
    padding: 8px 14px;
    border: 1px solid rgba(255, 122, 24, 0.22);
    border-radius: 999px;
    background: rgba(255, 122, 24, 0.08);
    color: var(--primary);
    font-size: 0.82rem;
    font-weight: 800;
    cursor: pointer;
}

.captcha-help-link:hover {
    background: rgba(255, 122, 24, 0.14);
}

.cap-image-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 18px 22px 22px;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background:
            linear-gradient(135deg, rgba(255, 122, 24, 0.04), rgba(229, 57, 53, 0.04)),
            #fff;
}

.cap-image {
    display: block;
    max-width: 100%;
    height: auto;
    border-radius: 14px;
    user-select: none;
    -webkit-user-drag: none;
}

.cap-error {
    min-height: 24px;
    margin: -8px 22px 22px;
    color: #dc2626;
    font-size: 0.9rem;
    font-weight: 700;
    text-align: center;
}

/*== Captcha Help ==*/

.cap-help-body {
    max-height: calc(100vh - 150px);
    overflow-y: auto;
    padding: 22px;
}

.cap-help-text {
    display: grid;
    gap: 8px;
    margin-bottom: 18px;
    color: var(--text);
    font-size: 0.95rem;
    line-height: 1.6;
}

.cap-help-text strong {
    color: var(--primary);
}

.cap-help-svg {
    overflow-x: auto;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: #f8fafc;
}

.cap-help-svg svg {
    display: block;
    width: 100%;
    min-width: 680px;
    height: auto;
}

.cap-help-footnote {
    margin-top: 14px;
    color: var(--muted);
    font-size: 0.82rem;
    line-height: 1.5;
    text-align: center;
}

/*== Responsive ==*/

@media (max-width: 768px) {
    .cap-overlay,
    .cap-help-overlay {
        padding: 14px;
        align-items: flex-start;
        overflow-y: auto;
    }

    .cap-modal,
    .cap-help-modal {
        margin-top: 72px;
        border-radius: 20px;
    }

    .cap-header,
    .cap-help-header {
        padding: 14px 16px;
    }

    .cap-title,
    .cap-help-title {
        font-size: 0.98rem;
    }

    .cap-prompt {
        padding: 18px 16px 0;
        font-size: 0.95rem;
    }

    .cap-image-wrap {
        margin: 16px;
        padding: 12px;
        border-radius: 16px;
    }

    .cap-error {
        margin: -4px 16px 18px;
        font-size: 0.85rem;
    }

    .cap-help-body {
        padding: 16px;
    }

    .cap-help-svg {
        padding: 10px;
        border-radius: 16px;
    }
}