/* ===== Base Styles ===== */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    color: #333;

}

.abstract-section {
    margin-top: 60px;
    text-align: center;   /* centers heading + image */
}

.abstract-img {
    display: block;       /* REQUIRED */
    margin: 0 auto;       /* centers image */
    max-width: 100%;
    width: 900px;         /* adjust if needed */
    height: auto;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}
/* 25 year logo*/
.25year-logo {
    width: 190px;              /* very small size */
    height: 190px;             /* equal width & height */
    border-radius: 50%;       /* makes it round */
    object-fit: cover;        /* avoids stretching */
    display: block;
    margin: 0 auto 5px;
}
/* LOGO */
.natcon-logo {
    width: 190px;              /* very small size */
    height: 190px;             /* equal width & height */
    border-radius: 50%;       /* makes it round */
    object-fit: cover;        /* avoids stretching */
    display: block;
    margin: 0 auto 5px;
    border: 2px solid #1ab7d8; /* optional violet border */
}

h1 {
    text-align: center;
    font-size:84px;   /* increase as needed */
}

h2 {
    text-align: center;
    font-size: 25px;   /* increase as needed */
}
/* ================= HEADER BANNER ================= */
.top-header {
    width: 100%;
    text-align: center;
}

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

/* ===== Hero Section ===== */
/* Hero */
.compact-hero {
    background-image: linear-gradient(rgba(0,29,61,.85), rgba(0,29,61,.85)),
                      url('sdg-header.jpg');
    background-size: cover;
    text-align: center;
    color: #fff;
    padding: 30px 20px;
}

.compact-hero h1,
.compact-hero h2,
.compact-hero p {
    margin: 10px 0;          /* reduce top & bottom spacing */
    line-height: 1.6;       /* tighter line spacing */
}

.compact-hero h1 { color:#00d4ff; font-size:60px; }
.subtitle { color:#ffd500; }

/* Buttons */
.btn-primary {
    background:#ff8800;
    color:#fff;
    padding:10px 24px;
    border-radius:25px;
    text-decoration:none;
    font-weight:bold;
    display:inline-block;
}

.btn-primary:hover { background:#cc6e00; }

.btn-secondary {
    background:#0066cc;
    color:#fff;
    padding:10px 20px;
    border-radius:5px;
    text-decoration:none;
    display:inline-block;
}

.theme {
    text-align: center;
    white-space: nowrap;      /* keeps it in one line */
    overflow: hidden;
    text-overflow: ellipsis;
}

.theme-main {
    font-size: 17px;          /* bigger text */
    font-weight: 600;
    color: #00d4ff;
font-family: "Bookman Old Style", serif;
}

.theme-sub {
    font-size: 18px;          /* smaller than first */
    font-weight: 400;
    color: #e6f4ff;
    margin-left: 6px;
}

@media (max-width: 768px) {
    .theme {
        white-space: normal;  /* allow wrap on mobile */
    }
}

.partners {
     font-size: 18px;          /* smaller than first */
    color: yellow;
    margin-left: 6px;
}
/* ===== Footer ===== */
.footer {
    background-color: #001d3d;
    color: #e0e0e0;
    padding-top: 30px;
    margin-top: 50px;
}

.footer-container {
    max-width: 1100px;
    margin: auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    padding: 0 20px;
}

.footer-block {
    width: 100%;
    max-width: 480px;
    margin-bottom: 20px;
}

.footer-block h4 {
    color: #ffd500;
    margin-bottom: 10px;
    font-size: 18px;
}

.footer-link {
    color: #00d4ff;
    text-decoration: none;
}

.footer-link:hover {
    text-decoration: underline;
}

.footer-bottom {
    text-align: center;
    background: #000f1f;
    padding: 12px 10px;
    margin-top: 20px;
    font-size: 14px;
}
=============================
.dates-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.dates-table th {
    background-color: #004080;
    color: #fff;
    padding: 12px;
    text-align: left;
}

.dates-table td {
    border: 1px solid #ccc;
    padding: 10px;
}

.dates-table tr:nth-child(even) {
    background-color: #f4f6f8;
}

/* ===== Speakers Section ===== */
.speaker-grid {
    display: flex;
    justify-content: center;
    margin-top: 30px;
}

.speaker-card {
    width: 320px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    transition: transform 0.3s ease;
}

.speaker-card:hover {
    transform: translateY(-8px);
}

.speaker-img {
    width: 100%;
    height: auto;
    border-bottom: 4px solid #004080;
}

.speaker-info {
    padding: 20px;
    text-align: center;
}

.speaker-info h3 {
    margin: 10px 0;
    font-size: 30px;
    color: #004080;
}

.designation {
    font-weight: bold;
    color: #ff8800;
    margin-bottom: 8px;
}

.institution {
    color: #333;
    font-size: 15px;
}
=======================================
/* ===== Registration Fees Table ===== */
.fees-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.fees-table th {
    background-color: #004080;
    color: #ffffff;
    padding: 12px;
    text-align: center;
}

.fees-table td {
    border: 1px solid #ccc;
    padding: 10px;
    text-align: center;
}

.fees-table tr:nth-child(even) {
    background-color: #f4f6f8;
}

.note {
    margin-top: 15px;
    font-size: 15px;
    color: #b00020;
}
==========================
.section-title {
    font-size: 22px;
    color: #004080;
    text-align: center;
    margin-bottom: 20px;
    position: relative;
    font-weight: bold;
}
.section-title::after {
    content: "";
    width: 30px;
    height: 3px;
    background-color: #ff8800;
    display: block;
    margin: 8px auto 0;
    border-radius: 2px;
}

/* ===== Speakers Section ===== */
#speakers {
    padding: 60px 20px;
    text-align: center;
}

.speaker-grid {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
    margin-top: 40px;
}

.speaker-card {
    width: 260px;
    text-align: center;
}

.speaker-img {
    width: 200px;
    height: 200px;
    object-fit: cover;
    border-radius: 50%;
    margin-bottom: 20px;
    border: 6px solid #f4f6f8;
}

.speaker-card h3 {
    font-size: 18px;
    color: #000;
    margin-bottom: 6px;
}

.speaker-card p {
    font-size: 15px;
    color: #333;
    line-height: 1.5;
    margin: 0;
}

/* ===== About Conference Section ===== */
.about-section {
    text-align: center;
}

.about-text {
    max-width: 900px;
    margin: 0 auto 15px;
    font-size: 17px;
    line-height: 1.7;
    color: #333;
   
}
================
.conference-title {
    text-align: center;
    margin-bottom: 10px;
}

.highlight {
    font-size: 46px;
    font-weight: 800;
    background: linear-gradient(90deg, #00d4ff, #ffd500);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 2px;
    text-shadow: 0 0 18px rgba(0, 212, 255, 0.45);
}
===========================
/* ===== Payment Section ===== */
.payment-section {
    text-align: center;
}

.payment-box {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 40px;
    margin-top: 30px;
}

/* Bank details card */
.bank-details {
    background: #fff;
    padding: 30px;
    border-radius: 14px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.12);
    max-width: 380px;
    text-align: left;
}

.bank-details h3 {
    color: #004080;
    margin-bottom: 15px;
    font-size: 22px;
}

.bank-details p {
    font-size: 16px;
    margin: 8px 0;
}

.payment-note {
    margin-top: 12px;
    font-size: 14px;
    color: #b00020;
}

/* QR section */
.qr-section {
    background: #ffe0eb;
    padding: 25px;
    border-radius: 20px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.12);
    max-width: 320px;
}

.qr-img {
    width: 100%;
    max-width: 240px;
    border-radius: 12px;
    border: 3px solid #000;
    background: #fff;
}

.scan-text {
    margin-top: 15px;
    background: #b8dcff;
    padding: 12px;
    border-radius: 25px;
    font-size: 18px;
    font-weight: bold;
    color: #000;
}
/* ===== Conference Announcement Marquee ===== */
.conf-marquee {
    background-color: #ffd500;     /* Yellow background */
    color: red;               /* Violet text #6a0dad */
    font-size: 18px;
    font-weight: bold;
    padding: 10px 0;
    letter-spacing: 0.5px;

}