@import "./styles.css";


:root{
    --h-title-color:#3948d2;
}

.header {
    border-bottom: solid 2px var(--bs-blue);
    z-index: 10000;
}

.bg-bottom {
    background-color: var(--h-title-color);
}

.top-section {
    position: relative;
    padding: 10rem 0;
    background-position: center;
    background-size: cover;
    height: 25rem;
}

.top-section h2 {
    font-weight: 400;
}

.top-section .top-section-content {
    position: relative;
    z-index: 1;
}

.top-section:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
}

section header h2{
    font-family: "Kanit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji" !important;
    color: var(--h-title-color);
    font-size: 2.0rem;
    line-height: 4rem;
}

section .main-body{
    font-size: 1.3rem;
    font-weight: 200;
    line-height: 2.4rem;
}


.bg-gradient-primary-to-secondary-light {
    background: linear-gradient(45deg, #fcfcfc, #ffffff) !important;
}

.bg-gradient-primary-to-secondary-gray {
    background: linear-gradient(45deg, #f0f0f0, #f1f1f1) !important;
}



.on-top {
    position: relative;
    z-index: 10000;
}

.top-bg {
    background-position: center;
    background-size: fill;
    width: 100%;
    height: 100%;
}

.top-bg::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
}

.author-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.author-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.author-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.2);
}

.author-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
    border: 4px solid #6c63ff;
}

.author-name {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #222;
}

.author-role {
    font-size: 1rem;
    color: #666;
    margin-bottom: 1rem;
    font-style: italic;
}

.author-bio {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #444;
    margin-bottom: 1.5rem;
}

.author-socials {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.author-socials a {
    color: #6c63ff;
    font-size: 1.3rem;
    transition: color 0.3s ease, transform 0.3s ease;
}

.author-socials a:hover {
    color: #222;
    transform: scale(1.2);
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.download-card {
    background: rgba(255, 255, 255, 0.97);
    border-radius: 18px;
    padding: 2rem;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    border: 1px solid rgba(0,0,0,0.05);
}

.download-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 14px 34px rgba(0,0,0,0.18);
}

.download-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--h-title-color);
    margin-bottom: 0.5rem;
}

.download-meta {
    font-size: 0.95rem;
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.4;
}

.download-buttons {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.download-btn {
    display: inline-block;
    padding: 0.55rem 1rem;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.download-btn-primary {
    background: var(--h-title-color);
    color: #fff;
}

.download-btn-primary:hover {
    background: #2f3bb8;
}

.download-btn-outline {
    background: transparent;
    border: 1px solid var(--h-title-color);
    color: var(--h-title-color);
}

.download-btn-outline:hover {
    background: var(--h-title-color);
    color: #fff;
}

.citation-box {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 1.5rem;
    margin: 1.8rem 0;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.citation-box:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.2);
}

.citation-buttons {
    margin-top: 1rem;
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.citation-btn {
    display: inline-block;
    padding: 0.2rem 0.55rem;   
    font-size: 0.75rem;        
    font-weight: 600;
    border-radius: 6px;
    border: 1px solid var(--h-title-color);
    text-decoration: none;
    color: var(--h-title-color);
    background: transparent;
    line-height: 1.2;
}

.citation-btn:hover {
    background: var(--h-title-color);
    color: #fff;
}

.presentation-box {
    background: rgba(255,255,255,0.95);
    border-radius: 20px;
    padding: 1.5rem;
    margin-top: 2rem;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.presentation-box:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.2);
}

.presentation-box iframe {
    width: 100%;
    aspect-ratio: 16 / 9;
    border: none;
    border-radius: 12px;
}

.presentation-footer {
    display: flex;
    justify-content: flex-end;
    margin-top: 1rem;
}

.presentation-btn {
    display: inline-block;
    padding: 0.35rem 0.8rem;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 8px;
    border: 1px solid var(--h-title-color);
    text-decoration: none;
    color: var(--h-title-color);
    background: transparent;
    transition: 0.2s;
}

.presentation-btn:hover {
    background: var(--h-title-color);
    color: white;
}