.d-flex {
    display: flex;
}

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

.navbar-brand {
    display: inline-block;
    padding-top: 0.3125rem;
    padding-bottom: 0.3125rem;
    margin-right: 2rem;
    text-decoration: none;
}

.me-2 {
    margin-right: 0.5rem;
}

.d-inline-block {
    display: inline-block;
}

.align-top {
    vertical-align: top;
}

/* Global Styles */
:root {
    --primary-color: #f16c08;
    --secondary-color: #0e090b;
    --light-color: #ffffff;
    --gray-color: #f4f4f4;
    --dark-gray: #333333;
    --transition: all 0.3s ease;
    --text-color: #000000;
    --spacing: 2rem;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-padding-top: 80px;
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-color);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0;
    box-sizing: border-box;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

/* Header Styles */
header {
    background-color: rgba(14, 9, 11, 0.95);
    backdrop-filter: blur(10px);
    color: var(--light-color);
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-logo {
    height: 50px;
    width: auto;
    padding-left: 15px;
}
.navbar-logo1 {
    height: 00px;
    width: 10px;
    padding-left: 15px;
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1001;
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    margin-left: auto;
}

@media screen and (max-width: 991px) {
    .menu-toggle {
        display: block;
    }

    .nav-menu {
        display: none;
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--secondary-color);
        padding: 20px;
        flex-direction: column;
    }

    .nav-menu.active {
        display: block;
    }

    .nav-menu li {
        margin: 10px 0;
    }

    .dropdown-menu {
        position: static;
        background: transparent;
        box-shadow: none;
        display: none;
        padding-left: 20px;
    }

    .dropdown.active .dropdown-menu {
        display: block;
    }

    .about-content {
        flex-direction: column;
        text-align: center;
    }

    .about-image {
        margin-top: 2rem;
    }
}

.nav-menu li {
    position: relative;
    margin-left: 1.5rem;
}

.nav-menu a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.dropdown-menu {
    display: none;
    position: absolute;
    background: white;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    min-width: 200px;
    z-index: 1;
}

.dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-menu li {
    margin: 0;
}

.dropdown-menu a {
    padding: 0.75rem 1rem;
    display: block;
}

/* About Sections */
.about-conference,
.about-rit {
    padding: var(--spacing) 0;
    background: white;
}

.about-content {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.about-text {
    flex: 1;
    padding-left: 2rem;
    padding-right: 2rem;
}

.about-image {
    flex: 1;
    text-align: center;
}

.conference-image,
.rit-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

/* Section Spacing */
.section {
    padding: 80px 0;
    position: relative;
    scroll-margin-top: 80px;
    display: block;
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
    display: block;
}

/* Previous ISSIP Conferences Section */
.previous-conferences {
    background-color: var(--light-color);
    padding: var(--spacing) 0;
}

.conferences-timeline {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 30px;
    padding: 30px 0;
    background-color: var(--light-color);
    border-radius: 8px;
    margin: 20px 0;
}

.conference-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin: 10px;
}

.conference-book {
    display: block;
    text-align: center;
    margin-bottom: 10px;
    transition: transform 0.3s ease;
}

.conference-book:hover {
    transform: scale(1.05);
}

.book-image {
    width: 120px;
    height: auto;
    border-radius: 5px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.conference-item {
    text-decoration: none;
    transition: var(--transition);
    width: 100%;
}

.conference-box {
    background-color: transparent;
    color: var(--primary-color);
    padding: 15px 25px;
    border-radius: 5px;
    font-weight: 600;
    text-align: center;
    border: 2px solid var(--primary-color);
    transition: var(--transition);
}

.conference-box:hover {
    background-color: var(--primary-color);
    color: var(--light-color);
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

/* Best Memories Section */
.best-memories {
    background-color: var(--gray-color);
    padding: var(--spacing) 0;
}

.slideshow-container {
    max-width: 1000px;
    position: relative;
    margin: auto;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.memory-slide {
    display: none;
    width: 100%;
    height: 500px;
}

.memory-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 10px;
}

.prev, .next {
    cursor: pointer;
    position: absolute;
    top: 50%;
    width: auto;
    margin-top: -22px;
    padding: 16px;
    color: white;
    font-weight: bold;
    font-size: 18px;
    transition: 0.6s ease;
    border-radius: 0 3px 3px 0;
    user-select: none;
    background-color: rgba(0, 0, 0, 0.3);
}

.next {
    right: 0;
    border-radius: 3px 0 0 3px;
}

.prev:hover, .next:hover {
    background-color: rgba(0, 0, 0, 0.8);
}

.dots-container {
    text-align: center;
    padding: 20px 0;
}

.dot {
    cursor: pointer;
    height: 12px;
    width: 12px;
    margin: 0 5px;
    background-color: #bbb;
    border-radius: 50%;
    display: inline-block;
    transition: background-color 0.6s ease;
}

.active, .dot:hover {
    background-color: var(--primary-color);
}

.fade {
    animation-name: fade;
    animation-duration: 1.5s;
}

@keyframes fade {
    from {opacity: .4}
    to {opacity: 1}
}

/* Responsive Design */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 1rem 0;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    }

    .nav-menu.active {
        display: block;
    }

    .nav-menu li {
        margin: 0;
    }

    .dropdown-menu {
        position: static;
        box-shadow: none;
        display: none;
        padding-left: 1rem;
    }

    .dropdown.active .dropdown-menu {
        display: block;
    }

    .about-content {
        flex-direction: column;
    }

    .about-rit .about-content {
        flex-direction: column-reverse;
    }

    .about-image {
        margin: 1rem 0;
    }
}
/* Global Styles */
:root {
    --primary-color: #f16c08;
    --secondary-color: #0e090b;
    --light-color: #ffffff;
    --gray-color: #f4f4f4;
    --dark-gray: #333333;
    --transition: all 0.3s ease;
    --text-color: #000000;
    --spacing: 2rem;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-padding-top: 80px;
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-color);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0;
    box-sizing: border-box;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 4px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--light-color);
    border: 2px solid var(--primary-color);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--primary-color);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--light-color);
}

.section {
    padding: 80px 0;
    position: relative;
    opacity: 1;
    transform: none;
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}



@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 40px;
    color: var(--secondary-color);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--primary-color);
}

.section-description {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    font-size: 1.1rem;
}

/* Header Styles */
header {
    background-color: rgba(14, 9, 11, 0.95);
    backdrop-filter: blur(10px);
    color: var(--light-color);
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}



nav {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1001;
}

.nav-menu {
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.nav-menu li {
    position: relative;
    margin-left: 20px;
    animation: fadeInDown 0.5s ease;
    animation-fill-mode: both;
}

.nav-menu li:nth-child(n) {
    animation-delay: calc(0.1s * var(--i));
}

.nav-menu li a {
    font-size: 0.8rem;
    font-weight: 500;
    padding: 10px 0;
    display: block;
    transition: var(--transition);
    position: relative;
    color: white;
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.nav-menu li a:hover::after {
    width: 100%;
}

.nav-menu li a:hover {
    color: var(--primary-color);
}

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--secondary-color);
    min-width: 200px;
    padding: 10px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1001;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    margin: 0;
    animation: fadeIn 0.3s ease;
}

.dropdown-menu li a {
    padding: 10px 20px;
}

.dropdown-menu li a:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

@media screen and (max-width: 991px) {
    .menu-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: var(--secondary-color);
        flex-direction: column;
        align-items: flex-start;
        padding: 20px;
        overflow-y: auto;
    }

    .nav-menu.active {
        left: 0;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    }

    .nav-menu li {
        margin: 10px 0;
        width: 100%;
    }

    .dropdown-menu {
        position: static;
        width: 100%;
        background-color: rgba(255, 255, 255, 0.05);
        display: none;
        transform: none;
        box-shadow: none;
    }

    .dropdown.active .dropdown-menu {
        display: block;
        opacity: 1;
        visibility: visible;
        padding-left: 15px;
        margin-top: 10px;
        margin-bottom: 10px;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    background-color: var(--secondary-color);
    color: var(--light-color);
    position: relative;
    overflow: hidden;
    padding-top: 80px;
    display: flex;
    align-items: center;
    box-shadow: inset 0 0 150px rgba(0, 0, 0, 0.7);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(14, 9, 11, 0.7), rgba(14, 9, 11, 0.4));
    z-index: 1;
    pointer-events: none;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 3;
    max-width: 800px;
    margin: 0 auto;
    padding: 30px;
    border-radius: 10px;
}

.hero-content h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero-content h2 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.hero-buttons {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.hero-buttons .btn {
    margin: 5px;
    min-width: 150px;
}

.image-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 2s ease-in-out;
    transform: scale(1.05);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    will-change: transform;
    backface-visibility: hidden;
}

.slide.active {
    opacity: 0.8;
    transform: scale(1);
    transition: opacity 2s ease-in-out, transform 8s ease-out;
    z-index: 1;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.85);
    display: block;
    background-attachment: fixed;
}

/* Countdown Styles */
.countdown-container {
    background-color: rgba(14, 9, 11, 0.8);
    padding: 20px;
    border-radius: 10px;
    margin: 30px auto;
    max-width: 600px;
}

.countdown-title {
    font-size: 1.2rem;
    margin-bottom: 15px;
    text-align: center;
}

#countdown {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.countdown-item span:first-child {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.countdown-label {
    font-size: 0.9rem;
    text-transform: uppercase;
}

/* Topics Grid */
.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.topic-card {
    background-color: var(--gray-color);
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.topic-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.topic-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.topic-card ul li {
    margin-bottom: 8px;
    position: relative;
    padding-left: 20px;
}

.topic-card ul li::before {
    content: '•';
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-size: 1.2rem;
}

/* Submission Section */
.submission-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.submission-content p {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.template-buttons {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* Committees Section */
.committee-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
    padding: 20px;
    margin: 0 auto;
    max-width: 1400px;
}

.committee-card {
    background-color: var(--light-color);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid rgba(241, 108, 8, 0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.committee-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.committee-main-header {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 20px;
}

.toggle-all-btn {
    background: none;
    border: 2px solid #007bff;
    border-radius: 5px;
    cursor: pointer;
    padding: 8px 15px;
    color: #007bff;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.toggle-all-btn:hover {
    background: #007bff;
    color: white;
}

.toggle-all-btn i {
    transition: transform 0.3s ease;
}

.toggle-btn {
    background: none;
    border: none;
    font-size: 1.2em;
    color: #333;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.committee-content {
    padding: 20px;
    background-color: #fff;
    border-radius: 0 0 10px 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    max-height: 3000px;
    overflow: hidden;
    transition: max-height 0.5s ease-out, padding 0.3s ease-out;
}

.committee-content.collapsed {
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
    transition: max-height 0.3s ease-in, padding 0.3s ease-in;
}

.toggle-btn i {
    transition: transform 0.3s ease;
}

.toggle-btn i.fa-chevron-up {
    transform: rotate(-180deg);
}

.toggle-all-btn i {
    transition: transform 0.3s ease;
}

.toggle-all-btn i.fa-chevron-up {
    transform: rotate(-180deg);
}

.committee-card h4 {
    margin: 0;
    color: #333;
    font-size: 1.2em;
}

.committee-card ul {
    list-style: none;
    padding: 0;
    margin: 15px 0 0 0;
}

.committee-card li {
    margin-bottom: 8px;
    color: #666;
    font-size: 0.95em;
}

.committee-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: var(--primary-color);
    opacity: 0.7;
    transition: all 0.3s ease;
}

.committee-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(241, 108, 8, 0.1);
    border-color: var(--primary-color);
}

.committee-card:hover::before {
    opacity: 1;
}

.committee-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.3rem;
    font-weight: 600;
    text-align: left;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(241, 108, 8, 0.15);
    letter-spacing: 0.5px;
}

.committee-card ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.committee-card ul li {
    margin-bottom: 12px;
    padding-left: 20px;
    position: relative;
    font-size: 1rem;
    line-height: 1.5;
    color: var(--dark-gray);
    transition: all 0.2s ease;
}

.committee-card ul li:last-child {
    margin-bottom: 0;
}

.committee-card ul li::before {
    content: '•';
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-size: 1.2rem;
    opacity: 0.8;
    transition: all 0.2s ease;
}

.committee-card ul li:hover {
    color: var(--primary-color);
    transform: translateX(5px);
}

.committee-card ul li:hover::before {
    opacity: 1;
}

/* Special Session Section */
.subsection {
    margin-bottom: 50px;
}

.subsection-title {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.special-session-content p {
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.special-session-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.special-session-item {
    background-color: var(--gray-color);
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.special-session-item h4 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.special-session-item p {
    margin-bottom: 10px;
}

/* Speakers Section */
.speakers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.speaker-card {
    background-color: var(--gray-color);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.speaker-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.speaker-image {
    height: 250px;
    overflow: hidden;
}

.speaker-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.speaker-card:hover .speaker-image img {
    transform: scale(1.05);
}

.speaker-info {
    padding: 20px;
}

.speaker-info h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
    color: var(--primary-color);
}

.speaker-title, .speaker-affiliation, .speaker-institution {
    margin-bottom: 5px;
    font-size: 0.9rem;
}

.speaker-title {
    font-weight: 500;
}

/* Proceedings Section */
.proceedings-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.proceedings-content p {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

/* Indexing Section */
.indexing-content {
    text-align: center;
    margin-bottom: 40px;
}

.indexing-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 30px;
    margin-top: 30px;
}

.indexing-item {
    width: 150px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.indexing-item img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    filter: grayscale(30%);
    transition: var(--transition);
}

.indexing-item:hover img {
    filter: grayscale(0%);
    transform: scale(1.05);
}

/* Venue Section */
.venue-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    align-items: center;
}

.about-text .venue-content {
    display: block;
    width: 100%;
    padding-right: 0;
}

.venue-info {
    padding: 20px;
}

.venue-info h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.venue-info p {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.venue-map img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Deadlines Section */
.deadlines-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 30px;
}

.deadline-item {
    background-color: var(--gray-color);
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.deadline-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.deadline-item h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.deadline-item p {
    font-weight: 500;
    font-size: 1.1rem;
}

/* Fees Section */
.fees-table-container {
    overflow-x: auto;
}

.fees-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 auto;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.fees-table th, .fees-table td {
    padding: 15px;
    text-align: center;
    border: 1px solid #ddd;
}

.fees-table th {
    background-color: var(--primary-color);
    color: var(--light-color);
    font-weight: 500;
}

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

.fees-table tr:hover {
    background-color: #e9e9e9;
}

/* Registration Section */
.registration-content {
    max-width: 800px;
    margin: 0 auto;
}

.registration-info {
    margin-bottom: 30px;
}

.registration-info p {
    margin-bottom: 15px;
    font-size: 1.1rem;
    line-height: 1.6;
}

.payment-details {
    background-color: var(--gray-color);
    padding: 25px;
    border-radius: 8px;
    margin-bottom: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.payment-details h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.payment-details p {
    margin-bottom: 10px;
}

.cancellation-policy {
    background-color: var(--gray-color);
    padding: 25px;
    border-radius: 8px;
    margin-bottom: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.cancellation-policy h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.important-dates {
    margin-top: 30px;
}

.important-dates h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.3rem;
    text-align: center;
}

.dates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.date-item {
    display: flex;
    justify-content: space-between;
    padding: 15px;
    background-color: var(--gray-color);
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.date-item span:first-child {
    font-weight: 500;
}

.date-item span:last-child {
    color: var(--primary-color);
    font-weight: 700;
}

/* Contact Section */
.contact-content {
    display: flex;
    justify-content: center;
    padding: 20px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    padding: 15px;
    background-color: var(--gray-color);
    border-radius: 8px;
    width: 100%;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-right: 15px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(241, 108, 8, 0.1);
    border-radius: 50%;
}

/* Footer Styles */
footer {
    background-color: var(--secondary-color);
    color: var(--light-color);
    padding: 60px 0 20px;
    width: 100%;
    margin: 0;
}

.footer-content {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    padding: 0 20px;
}

.footer-logo h2 {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.footer-logo p {
    font-size: 0.9rem;
    opacity: 0.8;
}

.footer-links h3, .footer-social h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h3::after, .footer-social h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: var(--primary-color);
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links ul li a {
    opacity: 0.8;
    transition: var(--transition);
}

.footer-links ul li a:hover {
    opacity: 1;
    color: var(--primary-color);
    padding-left: 5px;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: var(--transition);
}

.social-icons a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content h2 {
        font-size: 2.5rem;
    }
    
    .venue-content, .contact-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    header {
        padding: 10px 0;
    }
    
    .conferences-timeline {
        gap: 20px;
        padding: 20px 0;
    }
    
    .conference-wrapper {
        margin: 5px;
    }
    
    .book-image {
        width: 100px;
    }
    
    .conference-box {
        padding: 10px 15px;
        font-size: 0.9rem;
    }
    
    .memory-slide {
        height: 350px;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 80%;
        height: calc(100vh - 80px);
        background-color: var(--secondary-color);
        flex-direction: column;
        align-items: flex-start;
        padding: 20px;
        transition: var(--transition);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        left: 0;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    }
    
    .nav-menu li {
        margin: 0 0 15px 0;
        width: 100%;
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        width: 100%;
        background-color: transparent;
        box-shadow: none;
        padding: 0 0 0 20px;
        display: none;
    }
    
    .dropdown.active .dropdown-menu {
        display: block;
    }
    
    .hero-content {
        padding: 0 20px;
    }
    
    .countdown-item span:first-child {
        font-size: 2rem;
    }
    
    .topics-grid, .committee-grid, .speakers-grid, .special-session-list {
        grid-template-columns: 1fr;
    }
    
    .template-buttons {
        flex-direction: column;
        gap: 10px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    /* Responsive styles for Previous ISSIP Conferences */
    .conferences-timeline {
        padding: 20px 10px;
        gap: 15px;
    }
    
    .conference-box {
        padding: 12px 18px;
        font-size: 0.9rem;
    }
    
    /* Responsive styles for Best Memories slideshow */
    .memory-slide {
        height: 350px;
    }
    
    .prev, .next {
        padding: 10px;
        font-size: 16px;
    }
    
    .dots-container {
        padding: 15px 0;
    }
    
    .dot {
        height: 10px;
        width: 10px;
        margin: 0 3px;
    }
}
    
    .footer-links h3::after, .footer-social h3::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .social-icons {
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 1.5rem;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .conferences-timeline {
        gap: 15px;
        flex-direction: column;
        align-items: center;
    }
    
    .conference-wrapper {
        width: 80%;
        max-width: 250px;
    }
    
    .memory-slide {
        height: 250px;
    }
    
    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin: 10px 0;
    }
    
    #countdown {
        flex-wrap: wrap;
    }
    
    .countdown-item {
        width: 45%;
        margin-bottom: 10px;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .conference-wrapper {
        width: 100%;
    }
    
    .book-image {
        width: 90px;
    }
}

/* Scroll to Top Button */
.scroll-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: var(--primary-color);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    background-color: var(--secondary-color);
}