/* Custom styles */
body {
    font-family: 'Arial', sans-serif;
}

.navbar {
    padding: 15px 0;
    background-color: white;
    font-family: Montserrat,serif;
}

.navbar-brand {
    font-weight: bold;
    color: #004aad;
}

.navbar-brand span {
    color: #333;
}

.nav-link {
    color: #333;
    font-weight: 500;
    margin: 0 10px;
}

.nav-link.active {
    color: #004aad;
    border-bottom: 3px solid #004aad;
}

.tagline {
    font-size: 14px;
    color: #666;
    margin-top: -5px;
}

.hero-section {
    height: 80vh;
    background-image: url('https://wallpapercave.com/wp/wp2298444.jpg');
    background-size: cover;
    background-position: center;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
}

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

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.hero-title .blue-text {
    color: #1e88e5;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 30px;
}

.btn-abstract {
    background-color: #004aad;
    color: white;
    padding: 10px 30px;
    border-radius: 30px;
    font-weight: 500;
    transition: all 0.3s;
}

.btn-abstract:hover {
    background-color: #003c8f;
    color: white;
}

.university-logo {
    max-height: 80px;
}

/* Logo styling */
.conference-logo {
    font-size: 1.4rem;
    line-height: 1.2;
}

.conference-logo .biotech {
    color: #004aad;
    font-weight: bold;
}

/* Conference Overview Section */
.overview-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.overview-title {
    color: #004aad;
    font-weight: 700;
    margin-bottom: 40px;
    text-align: center;
}

.overview-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #333;
    margin-bottom: 25px;
    text-align: justify;
}

.overview-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Important Dates Section */
.dates-section {
    padding: 0;
    position: relative;
    background-image: url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
    background-size: cover;
    background-position: center;
}

.dates-overlay {
    background-color: rgba(77, 87, 108, 0.85);
    padding: 80px 0;
}

.dates-title {
    color: white;
    font-weight: 700;
    margin-bottom: 40px;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.date-card {
    background-color: white;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.date-title {
    color: #004aad;
    font-weight: 600;
    font-size: 1.2rem;
    text-align: center;
    margin-bottom: 10px;
}

.date-countdown {
    color: #666;
    text-align: center;
    font-size: 1rem;
}

/* Keynote Speakers Section */
.speakers-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    position: relative;
}

.speakers-title {
    color: #004aad;
    font-weight: 700;
    margin-bottom: 50px;
    text-align: center;
    font-size: 2.5rem;
}

.speakers-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #004aad, #1e88e5);
    margin: 20px auto 0;
    border-radius: 2px;
}

.speaker-image-container {
    text-align: center;
    position: relative;
    margin-bottom: 20px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.speaker-image {
    max-width: 100%;
    max-height: 100%;
    width: 350px;
    height: 350px;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.speaker-image:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.speaker-content {
    padding: 20px;
}

.speaker-name {
    color: #004aad;
    font-weight: 700;
    font-size: 2rem;
    margin-bottom: 10px;
    line-height: 1.2;
}

.speaker-title {
    color: #1e88e5;
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 5px;
    margin-top: 15px;
}

.speaker-department {
    color: #666;
    font-weight: 500;
    font-size: 1rem;
    margin-bottom: 5px;
    line-height: 1.4;
}

.speaker-bio {
    margin-top: 25px;
}

.speaker-bio p {
    font-size: 1rem;
    line-height: 1.7;
    color: #333;
    margin-bottom: 15px;
    text-align: justify;
}

/* Carousel Customization */
#speakersCarousel {
    background: white;
    border-radius: 20px;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    padding: 40px;
}

#speakersCarousel .carousel-item {
    min-height: 500px;
}

#speakersCarousel .carousel-item .row {
    align-items: stretch;
    min-height: 500px;
}

#speakersCarousel .carousel-item .col-lg-7 {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

#speakersCarousel .carousel-indicators {
    bottom: -50px;
}

#speakersCarousel .carousel-indicators button {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: #ccc;
    border: none;
    margin: 0 5px;
    transition: all 0.3s ease;
}

#speakersCarousel .carousel-indicators button.active {
    background-color: #004aad;
    transform: scale(1.2);
}

#speakersCarousel .carousel-control-prev,
#speakersCarousel .carousel-control-next {
    width: 50px;
    height: 50px;
    background-color: rgba(0, 74, 173, 0.8);
    border-radius: 50%;
    top: 50%;
    transform: translateY(-50%);
    margin: 0 20px;
}

#speakersCarousel .carousel-control-prev-icon,
#speakersCarousel .carousel-control-next-icon {
    width: 20px;
    height: 20px;
}

/* Enhanced Schedule Section */
.schedule-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9f0f8 100%);
    position: relative;
    overflow: hidden;
}

.schedule-section::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(0, 74, 173, 0.05);
    z-index: 0;
}

.schedule-section::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -50px;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: rgba(0, 74, 173, 0.05);
    z-index: 0;
}

.schedule-title {
    color: #004aad;
    font-weight: 700;
    margin-bottom: 40px;
    text-align: center;
    position: relative;
}

.schedule-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #004aad, #1e88e5);
    margin: 15px auto 0;
    border-radius: 2px;
}

.schedule-card {
    background-color: white;
    border-radius: 12px;
    padding: 30px;
    height: 100%;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border-top: 5px solid #004aad;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.schedule-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.day-title {
    color: #004aad;
    font-weight: 700;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e0e0e0;
    position: relative;
}

.day-title::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 80px;
    height: 2px;
    background-color: #004aad;
}

.schedule-item {
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px dashed #e0e0e0;
    position: relative;
    padding-left: 30px;
    transition: all 0.2s ease;
}

.schedule-item:hover {
    background-color: #f8f9fa;
    padding: 10px 10px 10px 30px;
    border-radius: 6px;
}

.schedule-item::before {
    content: '\f017';
    font-family: 'Font Awesome 6 Free';
    font-weight: 400;
    position: absolute;
    left: 0;
    top: 2px;
    color: #004aad;
}

.schedule-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

/* Enhanced Footer */
.footer {
    background: #072a59;
    color: white;
    padding: 70px 0 20px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 10px;
    background: linear-gradient(90deg, #1e88e5, #004aad, #002855);
}

.footer-wave {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
}

.footer-logo {
    max-height: 130px;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.footer-logo:hover {
    transform: scale(1.05);
}

.footer-conference-logo {
    max-width: 250px;
    margin-bottom: 15px;
    color: white;
}

.footer-conference-logo .biotech {
    color: #1e88e5;
    font-weight: bold;
}

.footer h4 {
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 10px;
    position: relative;
    font-size: 1.4rem;
}

.footer h4::after {
    content: '';
    position: absolute;
    display: block;
    width: 50px;
    height: 3px;
    background: #1e88e5;
    bottom: 0;
    left: 0;
}

.footer-address {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 5px;
    transition: all 0.3s ease;
    padding: 5px 0;
}

.footer-address:hover {
    color: white;
    transform: translateX(5px);
}

.social-icons {
    margin-top: 25px;
}

.social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: 50%;
    text-align: center;
    margin-right: 12px;
    transition: all 0.3s;
    font-size: 1.1rem;
}

.social-icons a:hover {
    background-color: #1e88e5;
    transform: translateY(-5px) rotate(360deg);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.copyright {
    margin-top: 50px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 1);
    text-align: center;
}

.footer-contact {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    color: rgba(255, 255, 255, 1);
    transition: all 0.3s ease;
}

.footer-contact i {
    margin-right: 10px;
    color: #fff;
}

.footer-contact:hover {
    color: white;
    transform: translateX(5px);
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.footer-links li:last-child {
    border-bottom: none;
}

.footer-links li a {
    color: rgba(255, 255, 255, 1);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-links li a:hover {
    color: white;
    padding-left: 5px;
}

.footer-links li a i {
    margin-right: 8px;
    color: #1e88e5;
}

/* Countdown styling */
.countdown-expired {
    color: #dc3545;
    font-weight: 500;
}

.countdown-active {
    color: #198754;
    font-weight: 500;
}