.czai-register-wrapper {
    max-width: 640px;
    margin: 30px auto;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: #111827;
}

.czai-step-inner {
    background: #ffffff;
    border-radius: 16px;
    padding: 24px 22px 30px;
    box-shadow: 0 10px 28px rgba(15, 23, 42, 0.12);
}

.czai-warning-title {
    font-size: 1.25rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 18px;
}

.czai-video-wrapper {
    border-radius: 14px;
    overflow: hidden;
    margin-bottom: 20px;
}

.czai-video-inner {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
}

.czai-video-inner iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.czai-step-title {
    font-size: 1.5rem;
    text-align: center;
    margin-bottom: 22px;
    font-weight: 700;
}

.czai-field-group {
    margin-bottom: 16px;
}

.czai-field-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 4px;
}

.czai-field-group input {
    width: 100%;
    border-radius: 12px;
    border: 1px solid #d1d5db;
    padding: 11px 14px;
    font-size: 0.95rem;
    background: #f3f6ff;
    transition: all 0.12s ease;
}

.czai-field-group input:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.2);
    background: #ffffff;
}

.czai-help {
    font-size: 0.75rem;
    color: #b91c1c;
    font-weight: 500;
    margin-left: 4px;
}

.czai-step-footer {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 22px;
}

.czai-btn {
    border: none;
    border-radius: 999px;
    padding: 14px 22px;
    font-weight: 700;
    cursor: pointer;
    font-size: 0.96rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.12s ease, box-shadow 0.12s ease, background-color 0.12s ease;
    white-space: nowrap;
    width: 100%;
    background: #020617;
    color: #f9fafb;
    border: 1px solid #020617;
    box-shadow: 0 16px 38px rgba(15, 23, 42, 0.40);
}

.czai-btn-primary,
.czai-btn-secondary {
    background: #020617;
    color: #f9fafb;
}

.czai-btn:hover {
    background: #030712;
    transform: translateY(-1px);
    box-shadow: 0 20px 44px rgba(15, 23, 42, 0.48);
}

.czai-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.czai-register-messages {
    display: none;
    margin-bottom: 14px;
    padding: 10px 12px;
    border-radius: 10px;
    font-size: 0.9rem;
}

.czai-register-messages.czai-msg-error {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

.czai-register-messages.czai-msg-success {
    background: #ecfdf3;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.czai-cpf-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 11px;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
}

.czai-cpf-badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
}

.czai-cpf-badge--validated {
    background: #ecfdf3;
    color: #166534;
}
.czai-cpf-badge--validated .czai-cpf-badge-dot {
    background: #22c55e;
}

.czai-cpf-badge--pending {
    background: #fffbeb;
    color: #92400e;
}
.czai-cpf-badge--pending .czai-cpf-badge-dot {
    background: #facc15;
}

.czai-cpf-badge--problem {
    background: #fef2f2;
    color: #b91c1c;
}
.czai-cpf-badge--problem .czai-cpf-badge-dot {
    background: #ef4444;
}

@media (max-width: 640px) {
    .czai-step-inner {
        padding: 20px 16px 26px;
        border-radius: 14px;
    }

    .czai-btn {
        width: 100%;
    }
}