/* ==========================================================================
   1. Base & Typography (Imported from main.css)
   ========================================================================== */
body {
    background: #faf9f9;
    padding: 0px;
    margin: 0px;
    font-family: 'Open Sans', Helvetica, Arial, sans-serif;
    color: #333;
    line-height: 1.6;
}

* { box-sizing: border-box; }

a { text-decoration: none; color: #41c17d; }
a:hover, a:focus { text-decoration: underline; }

.text-center { text-align: center; }

.container {
    width: 100%;
    max-width: 1130px;
    margin: 0 auto;
    padding: 0 15px;
}

/* ==========================================================================
   2. Header (Exact gradients and spacing from main.css)
   ========================================================================== */
header {
    position: relative;
    display: block;
    width: 100%;
    min-height: 130px;
    z-index: 99;
    background-color: #41c17d;
    background-image: linear-gradient(to top, #47ad76 0%, #47ad76 0.27%, #40c27d 99.46%, #40c27d 100%);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    padding-top: 45px;
}

header .logo {
    margin-right: 100px;
}

.site-title {
    color: #fff;
    font-weight: 700; /* Replaces open_bold */
    margin: 0;
    font-size: 24px;
    flex: 1 1 auto;
    text-align: center;
}

header .social {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

header .social a {
    margin-left: 20px;
    display: block;
}

/* ==========================================================================
   3. Main Grid (Replaces Bootstrap col-md-4 and col-md-8)
   ========================================================================== */
.about {
    padding: 50px 0;
}

.layout-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

@media (min-width: 768px) {
    .layout-grid {
        grid-template-columns: 339px 1fr; /* Matches the max-width of your iphone class */
        align-items: center;
    }
}

.image-column {
    text-align: center;
}

.image-column img {
    width: 100%;
    max-width: 339px;
    height: auto;
}

/* ==========================================================================
   4. Symposia List (Replaces Bootstrap list-group)
   ========================================================================== */
.list-column {
    margin-left: 0;
}

@media (min-width: 768px) {
    .list-column {
        margin-left: 30px;
    }
}

.symposia-list {
    list-style: none;
    padding: 0;
    margin: 0;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.symposia-list .item {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 15px 20px;
    border: 1px solid #ddd;
    margin-bottom: -1px;
    background-color: #fff;
    font-family: 'Open Sans', sans-serif;
}

.symposia-list .item:first-child { border-radius: 4px 4px 0 0; }
.symposia-list .item:last-child { border-radius: 0 0 4px 4px; margin-bottom: 0; }

.symposia-list .item span {
    display: block;
    font-size: 14px;
    color: #6c6c6c;
}

.symposia-list .item strong {
    font-weight: 600; /* Replaces open_semibold */
}

/* Bootstrap 3 Contextual Colors Recreated */
.item-danger { background-color: #f2dede; border-color: #ebccd1; color: #a94442; }
.item-danger a { color: #a94442; }

.item-success { background-color: #dff0d8; border-color: #d6e9c6; color: #3c763d; }
.item-success a { color: #3c763d; }

.item-info { background-color: #d9edf7; border-color: #bce8f1; color: #31708f; }
.item-info a { color: #31708f; }

.item-warning { background-color: #fcf8e3; border-color: #faebcc; color: #8a6d3b; }
.item-warning a { color: #8a6d3b; }

/* ==========================================================================
   5. Footer (Imported from main.css)
   ========================================================================== */
footer {
    padding: 30px 0;
    text-align: center;
}

footer .copyright {
    margin-top: 60px;
    color: #757171;
    font-size: 12px;
    letter-spacing: .5px;
}

footer .copyright a {
    color: #565555;
    font-weight: 600;
}

/* ==========================================================================
   6. Native Scroll Animations (Replaces WOW.js)
   ========================================================================== */
.animate-on-scroll {
    opacity: 0;
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    will-change: opacity, transform;
}

.fade-in-left  { transform: translateX(-40px); }
.fade-in-right { transform: translateX(40px); }
.fade-in-down  { transform: translateY(-40px); }
.fade-in       { transform: translateY(0); }

.is-visible {
    opacity: 1;
    transform: translate(0, 0);
}

.delay-1 { transition-delay: 0.15s; }

/* ==========================================================================
   7. Mobile Responsiveness (Imported from main.css)
   ========================================================================== */
@media (max-width: 767px) {
    header .logo {
        margin-right: 0;
        margin-bottom: 20px;
        text-align: center;
        width: 100%;
    }

    .header-inner {
        justify-content: center;
        padding-top: 20px;
        padding-bottom: 20px;
    }

    .site-title {
        font-size: 20px;
        margin-bottom: 15px;
    }

    header .social a {
        margin-left: 10px;
        margin-right: 10px;
    }
}