.hero-section {
    position: relative;
    width: 100%;
    height: calc(100vh - 75px);
    min-height: 400px;
    background-image: url('guideHero2.jpg');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(32, 58, 108, 0.4);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    color: #ffffff;
    font-size: 3.5rem;
    font-weight: 700;
}

.guide-sections-container {
    max-width: 900px;
    margin: 80px auto;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.scroll-animate {
    opacity: 0;
    transform: translateY(60px) scale(0.96);
    will-change: opacity, transform;
}

.guide-card {
    background-color: #ffffff;
    border: 2px solid #ccd3de;
    border-radius: 10px;
    padding: 30px 40px;
    display: flex;
    flex-direction: column;
}

.guide-card:hover {
    border-color: #203a6c;
}

.card-content h2 {
    font-size: 1.5rem;
    color: #203a6c;
    margin-bottom: 12px;
    font-weight: 600;
}

.card-content p {
    font-size: 0.95rem;
    color: #434656;
    line-height: 1.5;
    margin-bottom: 12px;
}

.prep-card-grid {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-top: 18px;
}

.prep-resource-card {
    display: flex;
    align-items: center;
    gap: 18px;
    background: #f8fafc;
    border: 1px solid #ccd3de;
    border-radius: 10px;
    padding: 16px 20px;
    text-decoration: none;
}

.prep-resource-card:hover {
    transform: translateY(-2px);
    border-color: #203a6c;
    background-color: #ffffff;
}

.prep-icon {
    font-size: 1.4rem;
    color: #203a6c;
    background-color: #ccd3de;
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.prep-resource-card:hover .prep-icon {
    background-color: #203a6c;
    color: #ffffff;
}

.prep-info {
    flex-grow: 1;
}

.prep-info h3 {
    font-size: 1.05rem;
    color: #203a6c;
    margin-bottom: 4px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.external-indicator {
    font-size: 0.75rem;
    opacity: 0.6;
}

.prep-info p {
    font-size: 0.9rem;
    color: #434656;
    margin: 0;
    line-height: 1.4;
}

.software-link-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin: 20px 0 16px 0;
}

.sw-link-card {
    display: flex;
    align-items: center;
    gap: 14px;
    background: #f8fafc;
    border: 1px solid #ccd3de;
    border-radius: 10px;
    padding: 14px 16px;
    text-decoration: none;
}

.sw-link-card:hover {
    transform: translateY(-2px);
    border-color: #203a6c;
    background-color: #ffffff;
}

.sw-link-icon {
    font-size: 1.1rem;
    color: #203a6c;
    background-color: #ccd3de;
    width: 38px;
    height: 38px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sw-link-card:hover .sw-link-icon {
    background-color: #203a6c;
    color: #ffffff;
}

.sw-link-text {
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.9rem;
    font-weight: 600;
    color: #203a6c;
    gap: 10px;
}

.sw-link-text i {
    font-size: 0.75rem;
    opacity: 0.4;
    transition: opacity 0.2s ease;
    flex-shrink: 0;
}

.sw-link-card:hover .sw-link-text i {
    opacity: 1;
}

.card-action {
    display: flex;
    justify-content: flex-start;
    margin-top: 15px;
}

.concentration-btn {
    display: inline-block;
    background-color: #203a6c;
    color: #ffffff;
    padding: 12px 24px;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
}

.concentration-btn:hover {
    background-color: #384f75;
    transform: translateY(-2px);
}

body.dark-mode .guide-card {
    background-color: #121212;
    border-color: #384f75;
}

body.dark-mode .card-content h2 {
    color: #ffffff;
}

body.dark-mode .card-content p {
    color: #ccd3de;
}

body.dark-mode .guide-card:hover {
    border-color: #8494ae;
}

body.dark-mode .prep-resource-card,
body.dark-mode .sw-link-card {
    background-color: #1a1a1a;
    border-color: #384f75;
}

body.dark-mode .prep-resource-card:hover,
body.dark-mode .sw-link-card:hover {
    border-color: #8494ae;
    background-color: #202a3c;
}

body.dark-mode .prep-icon,
body.dark-mode .sw-link-icon {
    background-color: #384f75;
    color: #ffffff;
}

body.dark-mode .prep-resource-card:hover .prep-icon,
body.dark-mode .sw-link-card:hover .sw-link-icon {
    background-color: #203a6c;
    color: #ffffff;
}

body.dark-mode .prep-info h3,
body.dark-mode .sw-link-text {
    color: #ffffff;
}

body.dark-mode .prep-info p {
    color: #ccd3de;
}

body.dark-mode .concentration-btn {
    background-color: #384f75;
    color: #ffffff;
}

body.dark-mode .concentration-btn:hover {
    background-color: #203a6c;
}

@media (max-width: 900px) {
    .hero-section {
        height: calc(100vh - 120px);
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }

    .software-link-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .guide-card {
        padding: 20px;
    }

    .concentration-btn {
        display: block;
        text-align: center;
        width: 100%;
    }
}