html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.7;
    color: #333;
    overflow-x: hidden;
}

/* ================= COMMON ================= */

a,
.btn,
.nav-link,
.topic-card,
.committee-card,
.registration-card {
    transition: all 0.3s ease;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.section-padding {
    padding: 80px 0;
}

.section-title {
    margin-bottom: 50px;
}

.section-title h2 {
    font-weight: 700;
    color: #0b3d91;
    margin-bottom: 15px;
    position: relative;
}

.section-title p {
    max-width: 700px;
    margin: auto;
    color: #666;
}

.bg-light {
    background-color: #f8fafc !important;
}

/* ================= TOP BAR ================= */

.top-bar {
    background: #0b3d91;
    color: #fff;
    font-size: 14px;
    padding: 10px 0;
}

.top-contact,
.top-social {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}

.top-bar a {
    color: #fff;
    text-decoration: none;
    margin-right: 18px;
}

.top-bar a:hover {
    opacity: 0.85;
}

.top-social a {
    margin-left: 10px;
    margin-right: 0;
}

/* ================= NAVBAR ================= */

.navbar {
    background: rgba(255,255,255,0.96);
    backdrop-filter: blur(10px);
    padding: 12px 0;
}

.navbar-brand {
    display: flex;
    align-items: center;
}

.navbar-brand img {
    width: 55px;
    height: 55px;
    object-fit: contain;
    margin-right: 12px;
}

.brand-text h5 {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
    color: #0b3d91;
}

.brand-text span {
    font-size: 13px;
    color: #666;
}

.navbar-nav .nav-link {
    font-weight: 500;
    margin-left: 12px;
    color: #333;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: #0b3d91;
}

.navbar-nav .nav-link.active {
    font-weight: 700;
}

/* ================= BUTTONS ================= */

.submit-btn {
    background: #0b3d91;
    color: #fff;
    border-radius: 8px;
    padding: 10px 22px;
    border: none;
    font-weight: 600;
}

.submit-btn:hover {
    background: #082c68;
    color: #fff;
    transform: translateY(-2px);
}

/* ================= HERO ================= */

.hero-section {
    background:
        linear-gradient(rgba(0,0,0,0.60), rgba(0,0,0,0.60)),
        url('../images/banner.webp') center/cover no-repeat;

    color: #fff;
    padding: 130px 0;
    text-align: center;
}

.hero-section h1 {
    font-size: 52px;
    font-weight: 700;
    margin-bottom: 20px;
}

.hero-section p {
    font-size: 20px;
    max-width: 850px;
    margin: auto;
}

.hero-buttons {
    margin-top: 35px;
}

.hero-buttons .btn {
    margin: 10px;
}

/* ================= PAGE HEADER ================= */

.page-header {
    background: linear-gradient(135deg, #0b3d91, #1554c0);
    color: #fff;
    padding: 90px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 10px;
}

.page-header p {
    margin: 0;
    opacity: 0.9;
}

/* ================= TOPIC CARDS ================= */

.topic-card {
    background: #fff;
    border-radius: 16px;
    padding: 30px 25px;
    height: 100%;
    border: 1px solid #edf1f7;
    box-shadow: 0 5px 18px rgba(0,0,0,0.06);
}

.topic-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 28px rgba(0,0,0,0.10);
}

.topic-card h5 {
    color: #0b3d91;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 18px;
}

.topic-card p {
    color: #555;
    line-height: 1.7;
    margin-bottom: 0;
}

.topic-card ul {
    padding-left: 20px;
    margin: 0;
}

.topic-card ul li {
    margin-bottom: 10px;
    color: #555;
    line-height: 1.6;
}

/* ================= IMPORTANT DATES ================= */

.date-card {
    display: flex;
    align-items: center;
    gap: 18px;
    min-height: 150px;
    text-align: left;
}

.date-icon {
    width: 72px;
    height: 72px;
    min-width: 72px;
    border-radius: 50%;
    background: rgba(11,61,145,0.08);

    display: flex;
    align-items: center;
    justify-content: center;
}

.date-icon i {
    font-size: 30px;
    color: #0b3d91;
}

.date-content {
    flex: 1;
}

.date-content h5 {
    margin-bottom: 10px;
    font-size: 18px;
    min-height: auto;
}

.date-content p {
    text-align: left;
    color: #666;
    font-weight: 500;
}

/* ================= CONFERENCE HIGHLIGHT ================= */

.conference-highlight {
    background: linear-gradient(135deg, #0b3d91, #1554c0);
    border-radius: 18px;
    padding: 60px 40px;
    color: #fff;
    box-shadow: 0 10px 30px rgba(11,61,145,0.20);
}

.conference-badge {
    display: inline-block;
    background: rgba(255,255,255,0.15);
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 18px;
    letter-spacing: 1px;
}

.conference-highlight h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
}

.conference-highlight h3 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 20px;
}

.conference-highlight p {
    color: rgba(255,255,255,0.88);
    font-size: 16px;
    margin-bottom: 30px;
}

/* ================= COMMITTEE ================= */

.committee-block {
    margin-bottom: 70px;
}

.committee-title {
    margin-bottom: 30px;
    color: #0b3d91;
    font-weight: 700;
    border-left: 5px solid #0b3d91;
    padding-left: 15px;
}

.committee-card {
    background: #fff;
    border-radius: 14px;
    padding: 25px;
    height: 100%;
    box-shadow: 0 5px 18px rgba(0,0,0,0.06);
}

.committee-card:hover {
    transform: translateY(-5px);
}

.committee-card h5 {
    color: #0b3d91;
    font-weight: 700;
    margin-bottom: 10px;
}

.committee-card p {
    margin: 0;
    color: #555;
}

/* ================= REGISTRATION ================= */

.registration-card,
.payment-box,
.instruction-box {
    background: #fff;
    border-radius: 14px;
    padding: 30px;
    box-shadow: 0 5px 18px rgba(0,0,0,0.06);
}

.registration-card {
    text-align: center;
    height: 100%;
}

.registration-card:hover {
    transform: translateY(-5px);
}

.registration-card h4 {
    color: #0b3d91;
    font-weight: 700;
    margin-bottom: 20px;
}

.instruction-box ul {
    padding-left: 20px;
    margin: 0;
}

.instruction-box li {
    margin-bottom: 14px;
}

/* ================= CONTACT ================= */

.contact-card,
.map-card,
.quick-contact-box {
    background: #fff;
    border-radius: 14px;
    padding: 30px;
    height: 100%;
    box-shadow: 0 5px 18px rgba(0,0,0,0.06);
}

.contact-card h3 {
    color: #0b3d91;
    font-weight: 700;
}

.contact-item {
    display: flex;
    gap: 15px;
    margin-top: 28px;
}

.contact-item i {
    font-size: 22px;
    color: #0b3d91;
}

.contact-item h6 {
    font-weight: 700;
    margin-bottom: 5px;
}

.contact-item p {
    margin: 0;
}

.contact-item a {
    color: #333;
    text-decoration: none;
}

.contact-item a:hover {
    color: #0b3d91;
}

.whatsapp-btn {
    background: #25d366;
    color: #fff;
    padding: 10px 22px;
    border-radius: 8px;
}

.whatsapp-btn:hover {
    background: #1ea952;
    color: #fff;
}

.map-card iframe {
    border-radius: 12px;
}

.quick-contact-box p {
    font-size: 18px;
}

/* ================= FOOTER ================= */

.footer-section {
    background: #111827;
    color: #fff;
    padding: 70px 0 20px;
}

.footer-section h5 {
    margin-bottom: 20px;
    font-weight: 700;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #ddd;
    text-decoration: none;
}

.footer-links a:hover {
    color: #fff;
}

.footer-bottom {
    color: #ccc;
    font-size: 14px;
}

/* ================= TEXT ALIGN ================= */

.justify-text p,
.text-justify {
    text-align: justify;
    text-justify: inter-word;
}

/* ================= RESPONSIVE ================= */

@media (max-width: 991px) {

    .navbar-nav {
        padding-top: 15px;
    }

    .navbar-nav .nav-item {
        margin-bottom: 8px;
    }

    .hero-section h1 {
        font-size: 42px;
    }
}

@media (max-width: 768px) {

    .section-padding {
        padding: 60px 0;
    }

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

    .top-contact,
    .top-social {
        width: 100%;
        justify-content: center;
        margin-bottom: 5px;
    }

    .hero-section {
        padding: 90px 0;
    }

    .hero-section h1 {
        font-size: 34px;
    }

    .hero-section p {
        font-size: 16px;
    }

    .page-header {
        padding: 70px 0;
    }

    .page-header h1 {
        font-size: 32px;
    }

    .navbar-brand img {
        width: 45px;
        height: 45px;
    }

    .date-card {
        flex-direction: column;
        text-align: center;
    }

    .date-content p,
    .date-content h5 {
        text-align: center;
    }

    .conference-highlight {
        padding: 40px 25px;
    }

    .conference-highlight h2 {
        font-size: 28px;
    }

    .conference-highlight h3 {
        font-size: 22px;
    }
}

/* ================= COMMITTEE TABLE ================= */

.committee-table {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 18px rgba(0,0,0,0.06);
}

.committee-table th {
    background: #0b3d91 !important;
    color: #fff;
    font-weight: 600;
    vertical-align: middle;
}

.committee-table td {
    vertical-align: middle;
    padding: 14px;
}

.committee-table strong {
    color: #0b3d91;
}

/* ================= LOGO SECTION ================= */

.logo-section{
    border-bottom: 1px solid #eee;
}

.logo-box{
    padding: 20px;
    transition: 0.3s;
}

.logo-box:hover{
    transform: translateY(-5px);
}

.partner-logo{
    max-height: 110px;
    object-fit: contain;
}