header {
    width: 100vw;
    position: fixed;
    top: 0;
    left: 0;
    text-align: center;
    background-color: #232946; 
    color: #f4d35e;       
    z-index: 1000;
    box-sizing: border-box;
    padding: 16px 20px 10px 20px;
    box-shadow: 0 2px 8px rgba(35,41,70,0.10);
}
.title {
    font-weight: 700;
    margin: 0;
    font-size: 1.6rem;
    letter-spacing: 1px;
}
body, html {
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
}
body {
    padding-top: 56px;
    padding-bottom: 70px; 
    background: #f7f7ff;
}
.notes-container {
    max-width: 1100px;
    margin: 48px auto 0 auto;
    padding: 24px 12px 0 12px;
}
.notes-title {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #232946;
}
.notes-desc {
    text-align: center;
    font-size: 1.1rem;
    color: #232946cc;
    margin-bottom: 32px;
}
.notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}
.notes-card {
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 4px 16px rgba(35,41,70,0.10);
    padding: 32px 18px 24px 18px;
    text-align: center;
    transition: transform 0.15s, box-shadow 0.15s;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
}
.notes-card:hover {
    transform: translateY(-6px) scale(1.025);
    box-shadow: 0 8px 24px rgba(35,41,70,0.16);
}
.notes-card:visited {
    color: inherit;
}
.notes-card img {
    width: 80px;
    height: 80px;
    margin-bottom: 18px;
}
.notes-card-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #232946;
    margin-bottom: 0;
    pointer-events: none; 
}
.title-link {
    text-decoration: none;
    color: inherit;
    display: inline-block;
    transition: opacity 0.15s;
}
.title-link:hover {
    opacity: 0.7;
}
.notes-card-desc {
    font-size: 0.98rem;
    color: #444;
    margin-top: 8px;
}
.notes-btn {
    display: inline-block;
    background: #232946;
    color: #f4d35e;
    font-weight: 700;
    font-size: 1.08rem;
    padding: 12px 32px;
    border: none;
    border-radius: 8px;
    text-decoration: none;
    box-shadow: 0 2px 10px rgba(35,41,70,0.10);
    transition: background 0.18s, color 0.18s, box-shadow 0.18s, transform 0.09s;
    cursor: pointer;
    margin-top: 12px;
}
.notes-btn:hover {
    background: #f4d35e;
    color: #232946;
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 4px 18px rgba(35,41,70,0.13);
}
.section-container {
    max-width: 800px;
    margin: 0 auto 40px auto;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 4px 16px rgba(35,41,70,0.08);
    padding: 18px 20px 28px 20px; 
    margin-top: 32px;
    display: flex;
    align-items: center;
    justify-content: space-between; 
    gap: 32px;
}
.section-content-group {
    flex: 1;
    margin-top: 0;
}
.section-title {
    text-align: center;
    font-size: 1.7rem;
    font-weight: 700;
    color: #232946;
    margin-bottom: 18px;
    margin-top: 0;
}
.section-img {
    width: 110px;
    height: 110px;
    object-fit: contain;
    background: #f7f7ff;
    border-radius: 10px;
    margin: 0;
    flex-shrink: 0;
}
.section-img-large {
    width: 260px;
    height: 260px;
    object-fit: contain;
    display: block;       
}
.image-border {
    display: flex;
    justify-content: center;
    align-items: center;
    background: none;
    border-radius: 0;
    box-shadow: none;
    padding: 0;
    margin: 0 auto 24px auto; 
    width: fit-content;
}
.section-content {
    font-size: 1.08rem;
    color: #232946;
    min-height: 60px;
    margin-bottom: 8px;
    text-align: left; 
}
.section-content ul {
    padding-left: 24px;
    margin: 12px 0;
}
.section-content li {
    margin-bottom: 10px;
    line-height: 1.6;
    font-size: 1.05rem;
}
.highlight {
    background: #fff3cd;
    color: #232946;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
}
.adv-disadv-table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(35,41,70,0.07); 
}
.adv-disadv-table th, .adv-disadv-table td {
    padding: 16px 14px;
    text-align: left;
    font-size: 1.04rem;
    border-bottom: 2px solid #e0e4ef; /* IM FUCKING COLOUR BLIND */
}

.adv-disadv-table th {
    background: #232946;  
    color: #f4d35e;       
    font-weight: 700;
}

.adv-disadv-table tr:last-child td {
    border-bottom: none; 
}

.adv-disadv-table td + td,
.adv-disadv-table th + th {
    border-left: 2px solid #e0e4ef; /* IM FUCKING COLOUR BLIND */
}
.tooltip {
    position: relative;
    cursor: pointer;
    border-bottom: 1px dotted #232946; /* IM FUCKING COLOUR BLIND */
}

.tooltip-standout {
    border-bottom: 3px dashed #232946; /* IM FUCKING COLOUR BLIND */
    background: #fffbe7;
    border-radius: 4px;
    padding: 0 2px;
    transition: background 0.2s, border-bottom 0.2s;
}
.tooltip-standout:hover {
    background: #f4d35e;
    border-bottom: 3px solid #232946;
}

.tooltiptext {
    visibility: hidden;
    width: 220px;
    background-color: #232946;
    color: #f4d35e;
    text-align: center;
    border-radius: 6px;
    padding: 8px 10px;
    position: absolute;
    z-index: 1;
    bottom: 125%; /* Position above the word */
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.2s;
    font-size: 0.98rem;
    box-shadow: 0 2px 8px rgba(35,41,70,0.13);
}

.tooltip:hover .tooltiptext,
.tooltip.tooltip-active .tooltiptext {
    visibility: visible;
    opacity: 1;
}
.details-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: #232946;
    cursor: pointer;
    padding: 14px 0 14px 36px;
    position: relative;
    background: #f7f7ff;
    border-radius: 8px;
    min-height: 44px;
    display: flex;
    align-items: center;
    transition: background 0.2s;
    margin-bottom: 8px;
    user-select: none;
}

.details-title::before {
    content: "";
    display: inline-block;
    width: 18px;
    height: 18px;
    background: url('data:image/svg+xml;utf8,<svg fill="none" stroke="%233083dc" stroke-width="3" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><polyline points="6 9 12 15 18 9"/></svg>') center/contain no-repeat;
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%) rotate(0deg);
    transition: transform 0.2s;
}

details[open] > .details-title::before {
    transform: translateY(-50%) rotate(180deg);
}

details {
    margin-bottom: 12px;
    border-radius: 8px;
    overflow: hidden;
    background: #f7f7ff;
    box-shadow: 0 1px 4px rgba(35,41,70,0.04);
    border: 1px solid #e0e4ef;
}
details summary::-webkit-details-marker {
    display: none;
}
details summary::marker {
    display: none;
}
.book-tutor-btn {
    display: inline-block;
    background: #232946;        
    color: #f4d35e;              
    font-size: 1.08rem;
    font-weight: 600;
    padding: 12px 32px;
    border: none;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(35,41,70,0.10);
    letter-spacing: 0.5px;
    margin-top: 12px;
    text-decoration: none;
    transition: 
        background 0.18s, 
        color 0.18s, 
        box-shadow 0.18s, 
        transform 0.09s;
    animation: none;
    position: relative;
    overflow: hidden;
}

.book-tutor-btn::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 0;
    height: 0;
    background: rgba(48,131,220,0.10);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s;
    z-index: 0;
}

.book-tutor-btn:hover, .book-tutor-btn:focus {
    background: #f4d35e;
    color: #232946;
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 4px 18px rgba(35,41,70,0.13);
}

.book-tutor-btn:active::after {
    width: 200%;
    height: 200%;
}

.book-tutor-desc {
    font-size: 0.97rem;
    color: #232946b0;
    margin-top: 7px;
    letter-spacing: 0.1px;
}
.about-tutor-box {
    background: #f7f7ff;
    border-radius: 14px;
    padding: 22px 24px 18px 24px;
    margin-bottom: 22px;
    box-shadow: 0 2px 12px rgba(35,41,70,0.07);
    border-left: 6px solid #3083dc;
    font-size: 1.08rem;
    color: #232946;
    line-height: 1.7;
}

.about-tutor-box strong {
    color: #3083dc;
    font-weight: 700;
}
.site-logo {
    width: 38px;
    height: 38px;
    border-radius: 8px;
    background: #fffbe7;
    box-shadow: 0 2px 8px rgba(35,41,70,0.08);
    object-fit: contain;
    margin-right: 2px;
}
.quiz-form {
    max-width: 500px;
    margin: 0 auto;
    padding: 18px 0;
}

.quiz-question {
    margin-bottom: 20px;
    background: #fffbe7; 
    border-radius: 8px;
    padding: 14px 18px;
    box-shadow: 0 1px 6px rgba(35,41,70,0.08);
    border-left: 4px solid #3083dc; 
}

.quiz-question label {
    color: #232946; 
}

.quiz-result {
    margin-top: 18px;
    font-weight: 600;
    font-size: 1.08rem;
    color: #3083dc; 
}
.banner-btn {
    display: inline-block;
    background: #232946;      
    color: #f4d35e;           
    font-weight: 700;
    font-size: 1.08rem;
    padding: 12px 36px;
    border: none;
    border-radius: 8px;
    text-decoration: none;
    box-shadow: 0 2px 10px rgba(35,41,70,0.10);
    transition: background 0.18s, color 0.18s, box-shadow 0.18s, transform 0.09s;
    cursor: pointer;
    margin-top: 12px;
}
.banner-btn:hover, .banner-btn:focus {
    background: #f4d35e;
    color: #232946;
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 4px 18px rgba(35,41,70,0.13);
}
.features-list {
    margin-top: 8px;
    margin-bottom: 8px;
    margin-left: 22px;
    list-style-type: disc;
    font-size: 1.03rem;
    color: #232946;
}
footer {
    width: 100%;
    background: #232946;
    color: #f4d35e;
    text-align: center;
    padding: 18px 0 8px 0;
    position: fixed;
    left: 0;
    bottom: 0;
    z-index: 100;
    font-size: 1rem;
    box-shadow: 0 -2px 10px rgba(35,41,70,0.10);
}

.footer-bottom {
    margin: 0 auto;
    max-width: 900px;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
    margin-top: 12px;
}

.resource-card {
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 4px 16px rgba(35,41,70,0.10);
    padding: 28px 18px 20px 18px;
    text-align: center;
    text-decoration: none;
    color: #232946;
    transition: transform 0.15s, box-shadow 0.15s, background 0.18s;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 180px;
}

.resource-card:hover {
    background: #f4d35e;
    color: #232946;
    transform: translateY(-6px) scale(1.025);
    box-shadow: 0 8px 24px rgba(35,41,70,0.16);
}

.resource-icon {
    width: 54px;
    height: 54px;
    margin-bottom: 14px;
}

.resource-title {
    font-size: 1.13rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.resource-desc {
    font-size: 0.98rem;
    color: #444;
}

@media (max-width: 600px) {
    html, body {
        max-width: 100vw;
        overflow-x: hidden;
    }
    footer {
        display: none;
    }
    footer.footer-visible {
        display: block;
    }
}

.core-ideas-vertical {
    display: flex;
    flex-direction: column;
    gap: 32px;
    align-items: center;
    margin-top: 32px;
}
.core-ideas-vertical .notes-card {
    width: 100%;
    max-width: 400px;
}