/* Add at the beginning of the file */
html {
    scroll-behavior: smooth;
}

/* Navbar Background */
.top-nav {
    background-color: var(--primary-blue);
    width: 100%;
    z-index: 1000;
}

header {
    background-color: var(--primary-blue);
    width: 100%;
    z-index: 990;
    padding: 0;
}

/* Symposium Content Styles */
.symposium-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 15px;
    display: flex;
    flex-direction: column;
}

.page-title {
    font-size: 2rem;
    color: var(--primary-blue);
    font-weight: 600;
    margin-bottom: 60px;
    text-transform: uppercase;
    position: relative;
    padding-bottom: 15px;
}

.symposium-grid {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
    margin-left: 80px;
}

.symposium-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.symposium-intro {
    margin-bottom: 40px;
}

.symposium-intro h3 {
    font-size: 1.1rem;
    color: var(--primary-blue);
    font-weight: 600;
    position: relative;
    padding-bottom: 5px;
}

.symposium-text p {
    font-size: 0.95rem;
    line-height: 1.8;
    color: #444;
    margin-bottom: 25px;
}

.symposium-text p:last-child {
    margin-bottom: 0;
}

.symposium-list {
    margin-top: 50px;
    padding-top: 30px;
}

.symposium-list h3 {
    font-size: 1.1rem;
    color: var(--primary-blue);
    font-weight: 600;
    position: relative;
}

.border-top {
    border-top: 2px solid var(--line-color);
}

.symposium-list ul {
    list-style: none;
    padding: 0;
    margin-left: 10px;
    margin-top: 5px;
}

.symposium-list ul li {
    position: relative;
    padding-left: 15px;
    margin-bottom: 12px;
    font-size: 0.95rem;
    color: #333;
    line-height: 1.5;
}

.symposium-list ul li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background-color: var(--primary-blue);
}

.default-sidebar {
    display: flex;
    flex-direction: column;
    gap: 30px;
    position: sticky;
    top: 140px;
    align-self: flex-start;
    height: fit-content;
}

.symposium-image img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    display: block;
}

.symposium-text img {
    max-width: 100%;
    height: auto;
}

.symposium-details {
    padding-left: 2rem;
    border-left: 2px var(--line-color) solid;
}

.symposium-details h2 {
    font-size: 1.1rem;
    color: var(--primary-blue);
}

.symposium-details ul {
    list-style: none;
    margin-left: 1rem;
}

.symposium-details ul li:last-child {
    border-bottom: none;
}

.symposium-details ul li a {
    display: block;
    padding: 6px 0;
    color: var(--dark-text);
    font-weight: bold;
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    position: relative;
    padding-right: 20px;
}

.symposium-details ul li a:hover {
    color: #2c5d6f;
}

.symposium-program {
    margin-top: 30px;
    margin-left: 70px;
}

.symposium-program h2 {
    font-size: 2rem;
    margin-top: 30px;
    color: var(--primary-blue);
    text-transform: uppercase;
    position: relative;
    padding-bottom: 15px;
}

.program-image img {
    height: auto;
    max-height: 580px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid #e0e0e0;
    background-color: #f8f8f8;
}

.program-buttons {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 30px;
}

.rotate-45 {
    rotate: -45deg;
}

.program-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--dark-text);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s ease;
    text-transform: uppercase;
}

.program-button i {
    font-size: 1rem;
    font-weight: 600;
    margin-left: 5px;
    color: var(--primary-blue);
}

/* Add sidebar mobile toggle styles */
.sidebar-toggle {
    display: none;
    position: fixed;
    top: 120px;
    right: 15px;
    z-index: 1001;
    background-color: var(--primary-blue);
    color: white;
    border: none;
    border-radius: 5px;
    padding: 10px;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

.sidebar-overlay.active {
    display: block;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .symposium-grid {
        margin-left: 40px;
        gap: 40px;
    }

    .symposium-program {
        margin-left: 40px;
    }
}

@media (max-width: 992px) {
    .symposium-grid {
        grid-template-columns: 1fr;
        margin-left: 0;
        gap: 40px;
    }

    .default-sidebar {
        position: relative;
        top: 0;
        order: -1;
        max-width: 400px;
        margin: 0 auto;
    }

    .symposium-program {
        margin-left: 0;
    }

    .program-image img {
        max-height: none;
        width: 100%;
    }
}

@media (max-width: 768px) {
    .symposium-content {
        margin-top: 100px;
        padding: 0 15px;
    }

    .page-title {
        font-size: 1.6rem;
        margin-bottom: 30px;
        padding: 0 15px;
    }

    /* Mobile sidebar styles */
    .symposium-grid {
        position: relative;
    }


    .default-sidebar.active {
        left: 0;
    }

    .sidebar-toggle {
        display: block;
    }

    .sidebar-close {
        position: absolute;
        top: 15px;
        right: 15px;
        background: none;
        border: none;
        color: var(--primary-blue);
        font-size: 20px;
        cursor: pointer;
        padding: 5px;
    }

    .symposium-details {
        display: block;
        border-left: none;
        padding-left: 0;
        margin-top: 20px;
    }

    .program-buttons {
        padding: 0 15px;
    }

    .symposium-list {
        margin-top: 30px;
        padding-top: 20px;
    }

    .symposium-list ul {
        margin-left: 0;
    }
}

@media (min-width: 769px) {
    .sidebar-toggle, .sidebar-overlay, .sidebar-close {
        display: none;
    }
}

@media (max-width: 576px) {

    .page-title {
        font-size: 1.4rem;
    }

    .symposium-details h2 {
        font-size: 1rem;
    }

    .symposium-details ul li a {
        font-size: 0.9rem;
        padding: 4px 0;
    }

    .program-button {
        font-size: 0.8rem;
    }
}