body.bv-body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
    color: #333;
    text-align: center;
    animation: bv-fadeIn 1s ease-in-out;
    font-size: 1.13rem;
}

main.bv-main {
    padding: 2rem;
    font-size: 1.13rem;
}

h1.bv-title {
    font-size: 2.8rem;
    color: #002a61;
}

h2.bv-subtitle, .bv-subtitle-important {
    font-size: 2rem;
    color: #002a61;
}

h3.bv-subtitle {
    font-size: 1.35rem;
    color: #002a61;
}

a.bv-link {
    color: #002a61;
    text-decoration: underline;
    font-weight: 600;
    transition:
        color 0.3s ease,
        background 0.3s ease,
        border-color 0.3s ease,
        transform 0.3s cubic-bezier(.4,0,.2,1);
    display: inline-block;
}

section.bv-section-portal {
    background: #f4f4f9;
    margin: 1rem auto 50px auto;
    padding: 1.5rem;
    width: 90%;
    text-align: center;
    animation: bv-fadeInUp 1s ease-in-out;
}

.bv-welcome-message {
    text-align: center;
    margin: 20px auto;
    padding: 0 20px;
    width: 90%;
}

.bv-welcome-message .bv-title {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: #002a61;
}

.bv-welcome-text {
    font-size: 1.2rem;
    color: #555;
    margin-bottom: 20px;
}

.bv-separator {
    border: 0;
    height: 1px;
    background: #ddd;
    margin: 20px 0;
}

.bv-card-container {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.bv-card {
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 20px;
    text-align: center;
    flex: 1 1 calc(48% - 20px);
    max-width: 600px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.bv-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.bv-card-title {
    font-size: 1.6rem;
    margin-bottom: 15px;
    color: #002a61;
}

.bv-button {
    display: inline-block;
    padding: 10px 20px;
    font-size: 1rem;
    font-weight: bold;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 3px;
    margin-bottom: 20px;
    transition: background-color 0.3s ease, transform 0.3s ease, color 0.3s ease;
    border: 2px solid transparent;
}

.bv-button:hover {
    transform: scale(1.05);
    border-color: #ddd;
    color: #fff;
}

.bv-button-blue {
    background-color: #002a61;
}

.bv-button-blue:hover {
    background-color: #002a61;
    color: #fff;
}

.bv-button-green {
    background-color: #28a745;
}

.bv-button-green:hover {
    background-color: #218838;
    color: #fff;
}

.bv-button-purple {
    background-color: #6f42c1;
}

.bv-button-purple:hover {
    background-color: #5a379e;
    color: #fff;
}

@media (max-width: 768px) {
    .bv-card-container {
        flex-direction: column;
        align-items: center;
    }
    .bv-card {
        flex: 1 1 100%;
        max-width: 90%;
    }
    .bv-important-info {
        max-width: 90%;
    }
}

.bv-section-videos {
    background: #f4f4f9;
    padding: 2rem 0 1rem 0;
    margin-bottom: 40px;
}

.bv-videos-grid {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.bv-video-card {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.07);
    padding: 20px 10px 10px 10px;
    max-width: 650px;
    flex: 1 1 500px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.bv-video-wrapper {
    width: 100%;
    max-width: 560px;
    aspect-ratio: 16/9;
    margin-bottom: 10px;
}

.bv-video-wrapper iframe {
    width: 100%;
    height: 315px;
    border-radius: 8px;
    border: none;
}

.bv-video-desc {
    color: #888;
    font-size: 1.1rem;
    margin-top: 10px;
    text-align: center;
}

@media (max-width: 1200px) {
    .bv-videos-grid {
        flex-direction: column;
        align-items: center;
        gap: 30px;
    }
    .bv-video-card {
        max-width: 95vw;
    }
    .bv-video-wrapper iframe {
        height: 220px;
    }
}

.bv-important-info {
    text-align: left;
    margin: 20px auto;
    padding: 20px;
    max-width: 1200px;
    background: #f4f4f9;
}

.bv-subtitle-important {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    text-align: center;
    color: #e60000;
}

.bv-info-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.bv-info-list li {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 20px;
    font-size: 1rem;
    line-height: 1.6;
    color: #333;
}

.bv-info-icon {
    font-size: 1.5rem;
    margin-right: 10px;
    color: #002a61;
}

.bv-info-content {
    max-width: 100%;
}

.bv-info-content strong {
    display: block;
    margin-bottom: 4px;
    color: #000;
}

.bv-doc-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    max-width: 950px;
    margin: 0 auto;
}

.bv-doc-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 0 8px rgba(0,0,0,0.05);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: 0.3s ease;
}

.bv-doc-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.bv-doc-icon {
    font-size: 2.2rem;
    margin-bottom: 0.75rem;
    color: #002a61;
}

.bv-doc-title {
    font-weight: bold;
    color: #002a61;
    font-size: 1.15rem;
    line-height: 1.4;
}

.bv-doc-title span {
    font-weight: normal;
    font-size: 0.95rem;
}

@media (max-width: 600px) {
    .bv-doc-grid {
        grid-template-columns: 1fr;
    }
}

.bv-doc-note {
    color: #e63946;
    font-size: 0.85rem;
    margin-top: 0.5rem;
}

.bv-doc-guidelines {
    max-width: 950px;
    margin: 2.5rem auto 0 auto;
    padding: 1.5rem 2rem 1.2rem 2rem;
    background: #f4f4f9;
    color: #222;
    font-size: 1.13rem;
    text-align: left;
}

.bv-doc-guidelines-list {
    background: #fffbe7;
    border: 1px solid #ffe066;
    border-radius: 8px;
    padding: 1.1rem 1.5rem;
    list-style: none;
}

.bv-doc-guidelines-list li {
    margin-bottom: 0.7rem;
    font-weight: 600;
    color: #b8860b;
    position: relative;
    padding-left: 1.5em;
}

.bv-doc-guidelines-list li::before {
    content: "⚠️";
    position: absolute;
    left: 0;
    top: 0;
}

.bv-useful-links {
    text-align: center;
    margin-top: 3rem;
    margin-bottom: 50px;
}

.link-cards {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    margin-top: 1.5rem;
}

.link-card {
    background-color: #fff;
    border-radius: 16px;
    padding: 2rem 3rem;
    text-decoration: none;
    color: #333;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    width: 220px;
}

.link-card i {
    font-size: 2.5rem;
    color: #002a61;
    margin-bottom: 0.8rem;
}

.link-card span {
    font-weight: 600;
    font-size: 1rem;
    color: #002a61;
    transition: color 0.2s;
}

.link-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.12);
}

.link-card:hover span {
    color: #002a61;
}

.bv-faq-item {
    margin-bottom: 1rem;
    border-bottom: 1px solid #ccc;
}

.bv-faq-question {
    background: none;
    border: none;
    font-size: 1.13rem;
    color: #002a61;
    font-weight: bold;
    text-align: left;
    width: 100%;
    padding: 0.75rem 0.5rem;
    cursor: pointer;
    position: relative;
    transition: background 0.2s;
}

.bv-faq-question::after {
    content: '\f107';
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    right: 20px;
    transition: transform 0.3s ease;
}

.bv-faq-item.active .bv-faq-question::after {
    transform: rotate(180deg);
}

.bv-faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s cubic-bezier(.4,0,.2,1), opacity 0.5s cubic-bezier(.4,0,.2,1), padding 0.5s cubic-bezier(.4,0,.2,1);
    opacity: 0;
    padding: 0 0.5rem;
    background: #f9f9fc;
    border-left: 4px solid #003f7e;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,63,126,0.07);
    text-align: left;
    margin-top: 0.2rem;
    font-size: 1.09rem;
}

.bv-faq-item.active .bv-faq-answer {
    max-height: 900px;
    opacity: 1;
    padding: 18px 1.2rem 18px 1.5rem;
    transition: max-height 0.7s cubic-bezier(.4,0,.2,1), opacity 0.5s cubic-bezier(.4,0,.2,1), padding 0.5s cubic-bezier(.4,0,.2,1);
}

.bv-faq-answer p {
    margin: 0 0 1rem 0;
    color: #222;
    line-height: 1.7;
}

.bv-faq-answer ul,
.bv-faq-answer ol {
    margin: 0 0 1rem 1.5rem;
    padding-left: 1.2rem;
}

.bv-faq-answer li {
    margin-bottom: 0.5rem;
    color: #222;
    font-size: 1.05rem;
}

.bv-faq-answer strong {
    color: #003f7e;
    font-weight: 700;
}

.bv-faq-answer a {
    color: #003f7e;
    font-weight: 600;
    text-decoration: underline;
    transition: color 0.2s;
}

.bv-faq-answer a:hover {
    color: #fff;
    background: #003f7e;
    border-radius: 4px;
    padding: 2px 6px;
    text-decoration: none;
}

.bv-certificado-img-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 1.2rem 0 0.5rem 0;
    gap: 0.5rem;
    background: #f4f8ff;
    border-radius: 8px;
    padding: 1rem 0.5rem;
    box-shadow: 0 1px 6px rgba(0,63,126,0.06);
}

.bv-certificado-label {
    font-weight: bold;
    color: #003f7e;
    margin-bottom: 0.3rem;
    font-size: 1.08rem;
    letter-spacing: 0.5px;
}

.bv-certificado-img {
    max-width: 730px;
    width: 100%;
    border-radius: 10px;
    border: 2px solid #003f7e;
    box-shadow: 0 2px 12px rgba(0,63,126,0.08);
    background: #fff;
    padding: 8px;
    margin-bottom: 0.5rem;
    display: block;
}

@media (max-width: 700px) {
    .bv-certificado-img {
        max-width: 98vw;
        padding: 4px;
    }
}

@keyframes bv-fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes bv-fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bv-slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}