/* 
   Conference 2025 - Modern Website
   A mobile-first, section-based scrolling design
*/

/* ===== Base Styles ===== */
:root {
    /* Color variables */
    --primary-color: #3f51b5;
    --primary-dark: #303f9f;
    --primary-light: #c5cae9;
    --secondary-color: #ff4081;
    --secondary-dark: #f50057;
    --text-primary: #212121;
    --text-secondary: #757575;
    --text-light: #ffffff;
    --bg-light: #ffffff;
    --bg-dark: #121212;
    --bg-gray: #f5f5f5;
    --border-color: #e0e0e0;
    
    /* Font sizes */
    --text-xs: 0.75rem;    /* 12px */
    --text-sm: 0.875rem;   /* 14px */
    --text-base: 1rem;     /* 16px */
    --text-lg: 1.125rem;   /* 18px */
    --text-xl: 1.25rem;    /* 20px */
    --text-2xl: 1.5rem;    /* 24px */
    --text-3xl: 1.875rem;  /* 30px */
    --text-4xl: 2.25rem;   /* 36px */
    --text-5xl: 3rem;      /* 48px */
    
    /* Spacing */
    --spacing-xs: 0.25rem;  /* 4px */
    --spacing-sm: 0.5rem;   /* 8px */
    --spacing-md: 1rem;     /* 16px */
    --spacing-lg: 1.5rem;   /* 24px */
    --spacing-xl: 2rem;     /* 32px */
    --spacing-2xl: 3rem;    /* 48px */
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border radius */
    --radius-sm: 0.25rem;   /* 4px */
    --radius-md: 0.5rem;    /* 8px */
    --radius-lg: 1rem;      /* 16px */
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Container max width */
    --container-width: 1200px;
    
    /* Header height */
    --header-height: 4.5rem;

    /* Add RGB variables for the animations */
    --primary-color-rgb: 26, 82, 118;
    --special-issue-color-rgb: 139, 0, 0;
}

/* Reset and basic styling */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 14px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-dark);
    background-image: url('../images/bg-hires.png');
    background-position: center;
    background-size: cover;
    background-attachment: fixed;
    background-repeat: no-repeat;
    overflow-x: hidden;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

ul, ol {
    list-style-type: none;
}

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

input, textarea, select, button {
    font-family: inherit;
    font-size: var(--text-base);
    outline: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: var(--spacing-md);
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: var(--text-4xl); /* Decrease this value */
}

h2 {
    font-size: var(--text-3xl); /* Decrease this value */
}

h3 {
    font-size: var(--text-2xl); /* Decrease this value */
}

h4 {
    font-size: var(--text-xl); /* Decrease this value */
}

p {
    margin-bottom: var(--spacing-lg);
}

/* ===== Layout Components ===== */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    box-sizing: border-box;
}

.section {
    min-height: 100vh;
    padding: calc(var(--header-height) + var(--spacing-xl)) 0 var(--spacing-xl);
    position: relative;
    opacity: 0.96;
    transition: opacity var(--transition-normal);
    position: relative;
}

.section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
    background-color: rgba(255, 255, 255, 0.5);
    transition: all var(--transition-normal);
}

.section.active {
    opacity: 1;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-header h2 {
    position: relative;
    display: inline-block;
    margin-bottom: var(--spacing-md);
}

.section-header h2::after {
    content: '';
    display: block;
    width: 60%;
    height: 4px;
    background-color: var(--secondary-color);
    position: absolute;
    bottom: -10px;
    left: 20%;
    border-radius: var(--radius-full);
}

.section-content {
    margin-top: var(--spacing-xl);
}

/* ===== Header & Navigation ===== */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.scrolled #header {
    box-shadow: var(--shadow-lg);
    background: rgba(255, 255, 255, 0.4);
}

.header-content {
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo a {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    transition: all var(--transition-normal);
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.5);
}

.logo a:hover {
    transform: scale(1.02);
}

.logo-img {
    height: 40px;
    width: auto;
    margin-right: 12px;
    transition: transform 0.3s ease;
}

.logo a:hover .logo-img {
    transform: rotate(5deg);
}

.main-nav {
    position: relative;
}

.nav-links {
    display: none;
}

.mobile-menu-icon {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    cursor: pointer;
}

.mobile-menu-icon span {
    display: block;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

/* Mobile menu open state */
.main-nav.active .mobile-menu-icon span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.main-nav.active .mobile-menu-icon span:nth-child(2) {
    opacity: 0;
}

.main-nav.active .mobile-menu-icon span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

.main-nav.active .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: calc(var(--header-height) - 0.5rem);
    right: 0;
    background: var(--bg-light);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    min-width: 200px;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.main-nav.active .nav-links li {
    margin: var(--spacing-xs) 0;
}

/* Dropdown menu */
.dropdown {
    position: relative;
}

.dropdown-toggle {
    display: flex;
    align-items: center;
}

.dropdown-toggle i {
    margin-left: var(--spacing-xs);
    font-size: var(--text-xs);
    transition: transform 0.3s ease;
}

.dropdown:hover .dropdown-toggle i {
    transform: rotate(180deg);
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(255, 255, 255, 0.7); /* 20% less transparent than the header's 0.3 */
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    border-radius: 0 0 var(--radius-md) var(--radius-md); /* Only round bottom corners */
    padding: var(--spacing-sm);
    min-width: 200px;
    z-index: 100;
    animation: fadeInDown 0.25s ease-out;
    border-top: 2px solid var(--accent-color); /* Subtle separator */
    margin-top: 0;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dropdown:hover .dropdown-menu,
.dropdown-toggle:focus + .dropdown-menu {
    display: block;
}

.dropdown-menu li {
    margin: 0;
}

.dropdown-menu a {
    padding: var(--spacing-sm);
    display: block;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.dropdown-menu a:hover {
    background-color: rgba(var(--primary-rgb), 0.1);
    transform: translateX(3px);
}

.dropdown-menu a.active {
    background-color: var(--primary-color);
    color: var(--bg-light);
}

/* Adjust for mobile navigation dropdown */
.main-nav.active .dropdown-menu {
    position: static;
    box-shadow: none;
    background-color: rgba(var(--primary-rgb), 0.05);
    border-left: 2px solid var(--primary-color);
    border-top: none;
    border-radius: var(--radius-sm);
    margin: var(--spacing-xs) 0 var(--spacing-xs) var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-sm);
    animation: none;
}

/* Header buttons */
.header-buttons {
    display: none;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    outline: none;
}

.btn-sm {
    padding: 0.35rem 0.75rem;
    font-size: var(--text-sm);
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: var(--text-lg);
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    color: var(--text-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: var(--secondary-dark);
    color: var (--text-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
    transform: translateY(-2px);
}

/* Button for special issue using the journal's colors */
.btn-secondary.journal-button {
    background-color: var(--special-issue-color);
    color: var(--text-light);
}

.btn-secondary.journal-button:hover {
    background-color: var(--special-issue-dark);
    color: var(--text-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(139, 0, 0, 0.3);
}

/* ===== Hero Section ===== */
#home {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

#home::before {
    background: linear-gradient(135deg, rgba(26, 82, 118, 0.1) 0%, rgba(255, 255, 255, 0.4) 100%);
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
}

.hero {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: var(--text-4xl);
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
    text-shadow: 0 2px 4px rgba(255, 255, 255, 0.5);
}

.hero h2 {
    font-size: var(--text-2xl);
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
    text-shadow: 0 2px 4px rgba(255, 255, 255, 0.5);
}

.lead {
    font-size: var(--text-lg);
    margin-bottom: var(--spacing-xl);
    text-shadow: 0 2px 4px rgba(255, 255, 255, 0.5);
}

.deadline-notice {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    padding: 0.7rem 1.75rem;
    border-radius: 50px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.05));
    border: 1px solid rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: left;
}

.deadline-notice > i {
    font-size: 1.3rem;
    color: var(--secondary-color);
}

.deadline-notice > div {
    display: flex;
    flex-direction: column;
}

.deadline-date {
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
    color: var(--text-primary);
    text-shadow: 0 1px 3px rgba(255, 255, 255, 0.6);
}

.deadline-note {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-style: italic;
    margin-top: 0.15rem;
    text-shadow: 0 1px 3px rgba(255, 255, 255, 0.6);
}

/* Apply page deadline styling (white bg context) */
.section-header .deadline-notice {
    background: rgba(var(--primary-color-rgb), 0.06);
    border: 1px solid rgba(var(--primary-color-rgb), 0.2);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.section-header .deadline-date {
    color: var(--primary-dark);
    text-shadow: none;
}

.section-header .deadline-note {
    text-shadow: none;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

/* Countdown timer */
.countdown {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 60px;
}

.count {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--primary-color);
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.8);
}

.label {
    font-size: var(--text-xs);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Scroll down indicator */
.scroll-down {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-down a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background-color: var(--primary-color);
    color: var(--text-light);
    font-size: var(--text-lg);
    transition: all var(--transition-fast);
}

.scroll-down a:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-10px) translateX(-50%);
    }
    60% {
        transform: translateY(-5px) translateX(-50%);
    }
}

/* ===== Call for Papers Section ===== */
#call-for-papers {
    background-color: transparent;
}

#call-for-papers::before {
    background-color: rgba(245, 245, 245, 0.7);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

/* Timeline */
.timeline {
    max-width: 800px;
    margin: 0 auto var(--spacing-2xl);
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 2px;
    height: 100%;
    background-color: var(--primary-light);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-xl);
    width: 100%;
}

.timeline-date {
    position: absolute;
    top: 0;
    left: 0;
    width: 120px;
    text-align: right;
    padding-right: var(--spacing-lg);
}

.timeline-date span {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--primary-color);
    color: var(--text-light);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 600;
}

.timeline-content {
    margin-left: 140px;
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.timeline-content h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

/* Topics */
.topics {
    margin-bottom: var (--spacing-2xl);
}

.topics h3 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.topics-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.topic-item {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all var(--transition-normal);
}

.topic-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.topic-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-light);
    color: var(--primary-color);
    border-radius: var(--radius-full);
    font-size: var(--text-2xl);
}

.topic-item h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

/* CTA Box */
.cta-box {
    background: linear-gradient(135deg, rgba(26, 82, 118, 0.85), rgba(230, 126, 34, 0.85));
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    color: var(--text-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.cta-box h3 {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.cta-box p {
    margin-bottom: var(--spacing-lg);
}

.cta-box .btn-outline {
    border-color: var(--text-light);
    color: var(--text-light);
}

.cta-box .btn-outline:hover {
    background-color: var(--text-light);
    color: var(--primary-color);
}

/* ===== Program Section ===== */
#program {
    background-color: transparent;
}

#program::before {
    background-color: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
}

/* Program tabs */
.program-tabs {
    max-width: 900px;
    margin: 0 auto;
}

.tab-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.tab-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--bg-gray);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.tab-btn.active {
    background-color: var(--primary-color);
    color: var(--text-light);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Schedule */
.schedule {
    margin-bottom: var(--spacing-2xl);
}

.schedule-item {
    display: flex;
    flex-direction: column;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.schedule-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.schedule-time {
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.schedule-details {
    flex-grow: 1;
}

.schedule-details h4 {
    margin-bottom: var(--spacing-xs);
}

.schedule-details p {
    margin-bottom: var (--spacing-xs);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.schedule-details .speaker {
    font-style: italic;
    color: var(--primary-dark);
}

.schedule-item.keynote {
    background-color: rgba(63, 81, 181, 0.1);
    border-left: 4px solid var(--primary-color);
}

.schedule-item.break {
    background-color: rgba(0, 0, 0, 0.03);
}

.schedule-item.social {
    background-color: rgba(26, 82, 118, 0.1);
    border-left: 4px solid var(--primary-color);
}

.schedule-item.social h4 {
    color: var(--primary-color);
}

/* Poster Session Button */
.poster-session-container {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.poster-session-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 2px 8px rgba(var(--primary-color-rgb), 0.2);
    min-width: 180px;
    justify-content: center;
}

.poster-session-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(var(--primary-color-rgb), 0.4);
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
}

.poster-session-btn:active {
    transform: translateY(-1px);
}

.poster-session-btn i {
    font-size: 1.1rem;
}

.poster-session-btn span {
    font-weight: 600;
}

/* Poster Modal */
.poster-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: fadeIn 0.3s ease;
}

.poster-modal {
    background: white;
    border-radius: var(--radius-lg);
    max-width: 800px;
    max-height: 80vh;
    width: 90%;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    animation: slideUp 0.3s ease;
}

.poster-modal-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.poster-modal-header h3 {
    margin: 0;
    font-size: 1.5rem;
}

.poster-modal-close {
    background: none;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color var(--transition-fast);
}

.poster-modal-close:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.poster-modal-content {
    padding: var(--spacing-lg);
    max-height: 60vh;
    overflow-y: auto;
}

.poster-list {
    display: grid;
    gap: var(--spacing-lg);
}

.poster-item {
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.poster-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(var(--primary-color-rgb), 0.1);
}

.poster-title {
    margin: 0 0 var(--spacing-sm) 0;
    color: var(--primary-color);
    font-size: 1.1rem;
    font-weight: 600;
}

.poster-authors {
    margin: 0;
    color: var(--text-secondary);
    font-style: italic;
}

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

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

/* Mobile responsiveness for poster modal */
@media (max-width: 768px) {
    .poster-modal {
        width: 95%;
        max-height: 90vh;
    }
    
    .poster-modal-header {
        padding: var(--spacing-md);
    }
    
    .poster-modal-header h3 {
        font-size: 1.3rem;
    }
    
    .poster-modal-content {
        padding: var(--spacing-md);
    }
    
    .poster-session-btn {
        font-size: 0.9rem;
        padding: 10px 20px;
        min-width: 160px;
    }
    
    .poster-session-container {
        margin-top: var(--spacing-sm);
        padding-top: var(--spacing-sm);
    }
}

.badge {
    display: inline-block;
    padding: 2px 8px;
    background-color: var(--primary-color);
    color: var(--text-light);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    margin-bottom: var(--spacing-sm);
}

/* Speakers */
.speakers {
    margin-top: var(--spacing-2xl);
}

.speakers h3 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.speakers-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var (--spacing-lg);
}

.speaker-card {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    text-align: center;
}

.speaker-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.speaker-image {
    width: 100%;
    height: 0;
    padding-top: 100%;
    position: relative;
    overflow: hidden;
}

.speaker-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all var(--transition-normal);
}

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

.speaker-card h4 {
    margin: var(--spacing-md) var(--spacing-md) var(--spacing-xs);
}

.speaker-title {
    color: var(--text-secondary);
    font-size: var(--text-sm);
    margin-bottom: var (--spacing-sm);
    padding: 0 var(--spacing-md);
}

.speaker-social {
    padding: 0 var(--spacing-md) var(--spacing-md);
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
}

.speaker-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background-color: var(--primary-light);
    color: var(--primary-color);
    transition: all var(--transition-fast);
}

.speaker-social a:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
    transform: translateY(-2px);
}

/* ===== Information Section ===== */
#information {
    background-color: transparent;
    background-image: none;
}

#information::before {
    background-color: rgba(245, 245, 245, 0.8);
    backdrop-filter: blur(1px);
    -webkit-backdrop-filter: blur(1px);
    background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.07' fill-rule='evenodd'/%3E%3C/svg%3E");
    position: relative;
}

.info-cards-container {
    padding: var(--spacing-md);
    position: relative;
    background: linear-gradient(135deg, rgba(255,255,255,0.7) 0%, rgba(255,255,255,0.9) 100%);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-2xl);
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: 0;
}

.info-card {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    padding: var(--spacing-lg);
    padding-top: calc(var(--spacing-xl) + 30px); /* Increased top padding to make room for icons */
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    border-bottom: 4px solid var(--primary-color);
    z-index: 1;
}

.card-spotlight {
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at var(--x) var(--y), rgba(174, 214, 241, 0.3) 0%, rgba(255, 255, 255, 0) 50%);
    top: 0;
    left: 0;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
    z-index: -1;
}

.info-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    border-bottom: 4px solid var(--secondary-color);
}

.info-card:hover .card-spotlight {
    opacity: 1;
}

.info-icon {
    width: 80px;
    height: 80px;
    margin: -40px auto var(--spacing-md); /* Adjusted from -50px to -40px */
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: var(--text-light);
    border-radius: var(--radius-full);
    font-size: var(--text-2xl);
    box-shadow: 0 8px 20px rgba(26, 82, 118, 0.3);
    transform: rotate(0);
    transition: transform 0.5s ease;
    position: relative; /* Added position relative */
    z-index: 2; /* Ensure icon stays above card content */
}

.info-card h3 {
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
    font-size: var(--text-2xl);
    position: relative;
    display: inline-block;
}

.info-card h3::after {
    content: '';
    display: block;
    width: 50%;
    height: 2px;
    background-color: var(--secondary-color);
    position: absolute;
    bottom: -8px;
    left: 25%;
    border-radius: var(--radius-full);
}

.info-card p {
    margin-bottom: var(--spacing-md);
    font-size: var(--text-base);
    color: var(--text-primary);
    line-height: 1.8;
}

/* Welcome Guide Banner */
.welcome-guide-banner {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-2xl);
    box-shadow: 0 15px 30px rgba(26, 82, 118, 0.2);
    position: relative;
    overflow: hidden;
}

.welcome-guide-banner::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.07' fill-rule='evenodd'/%3E%3C/svg%3E");
    opacity: 0.2;
    z-index: 1;
}

.welcome-guide-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    z-index: 2;
    margin-bottom: var(--spacing-lg);
}

.welcome-guide-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    border-radius: var(--radius-full);
    font-size: var(--text-4xl);
    margin-bottom: var(--spacing-md);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.welcome-guide-text h3 {
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
    font-size: var(--text-3xl);
}

.welcome-guide-text p {
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto;
    font-size: var(--text-lg);
    line-height: 1.6;
}

.welcome-guide-btn {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--text-lg);
    background-color: var(--secondary-color);
    color: var(--text-light);
    border-radius: var(--radius-full);
    z-index: 2;
    transition: all 0.3s ease;
    box-shadow: 0 10px 20px rgba(230, 126, 34, 0.3);
}

.welcome-guide-btn:hover {
    background-color: var(--secondary-dark);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 15px 30px rgba(230, 126, 34, 0.4);
}

.welcome-guide-btn i {
    margin-right: var(--spacing-sm);
}

/* Enhanced Venue Card */
.venue-details {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.venue-details p {
    margin-bottom: var(--spacing-lg);
    font-size: var(--text-base);
    line-height: 1.7;
    text-align: center;
}

.venue-action {
    margin-top: auto;
}

.venue-card .btn {
    transition: all var(--transition-normal);
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.venue-card:hover .btn {
    background-color: var(--primary-color);
    color: var(--text-light);
    transform: translateY(-2px);
}

.venue-btn:hover {
    transform: translateY(-2px);
}

/* Venue link styling */
.venue-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.venue-link:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* Responsive Layout Adjustments */
@media (min-width: 768px) {
    .welcome-guide-banner {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
        padding: var(--spacing-xl) var(--spacing-2xl);
    }
    
    .welcome-guide-content {
        flex-direction: row;
        text-align: left;
        margin-bottom: 0;
        flex: 1;
    }
    
    .welcome-guide-icon {
        margin-right: var(--spacing-xl);
        margin-bottom: 0;
    }
    
    .welcome-guide-text h3 {
        text-align: left;
    }
    
    .welcome-guide-text p {
        text-align: left;
        margin: 0;
    }

    .info-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .info-card {
        /* Increased height for better alignment */
        min-height: 280px;
    }
}

@media (min-width: 992px) {
    .info-grid {
        grid-template-columns: repeat(3, 1fr);
        max-width: 1000px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .info-card {
        min-height: 320px; /* Adjust height for better alignment */
    }
}

/* Contact */
.contact h3 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var (--spacing-xl);
}

.contact-info {
    padding: var(--spacing-md);
}

.contact-info p {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.contact-info p i {
    font-size: var(--text-lg);
    color: var(--primary-color);
    margin-right: var(--spacing-md);
    width: 20px;
    text-align: center;
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background-color: var(--primary-light);
    color: var(--primary-color);
    transition: all var(--transition-fast);
}

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

/* Bluesky SVG icon styling */
.bluesky-svg {
    width: 20px;
    height: 20px;
    transition: all 0.3s ease;
}

.bluesky-icon:hover .bluesky-svg {
    transform: scale(1.1);
    filter: brightness(1.2);
}

/* Blue Sky icon styling */
.social-links .bluesky-icon {
    background-color: rgba(0, 149, 246, 0.2);
}

.social-links .bluesky-icon i {
    color: #0095f6;
}

.social-links .bluesky-icon:hover {
    background-color: #0095f6;
}

.social-links .bluesky-icon:hover i {
    color: white;
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-md);
}

input, textarea, select {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-light);
    transition: all var(--transition-fast);
}

input:focus, textarea:focus, select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(63, 81, 181, 0.2);
}

textarea {
    min-height: 120px;
    resize: vertical;
}

.contact-form button {
    width: 100%;
}

/* ===== Footer ===== */
footer {
    position: relative;
    color: var(--text-light);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    z-index: 1;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(18, 18, 18, 0.9);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    z-index: -1;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo h3 {
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
}

.footer-logo p {
    color: var(--text-secondary);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.footer-column h4 {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    position: relative;
    display: inline-block;
}

.footer-column h4::after {
    content: '';
    display: block;
    width: 40px;
    height: 2px;
    background-color: var(--primary-color);
    margin-top: var(--spacing-sm);
}

.footer-column ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-column ul li a {
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.footer-column ul li a:hover {
    color: var(--text-light);
}

.subscribe-form {
    display: flex;
    margin-top: var(--spacing-md);
}

.subscribe-form input {
    flex-grow: 1;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    border-right: none;
}

.subscribe-form button {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-lg);
}

.footer-bottom .social-links {
    margin-top: 0;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
        flex-wrap: wrap;
    }
    
    .copyright {
        margin-bottom: 0;
    }
    
    .university-info {
        order: -1;
        flex-basis: 100%;
        margin-bottom: var(--spacing-md);
        text-align: center;
    }
}

@media (min-width: 992px) {
    .footer-bottom {
        flex-wrap: nowrap;
    }
    
    .university-info {
        flex-basis: auto;
        margin-bottom: 0;
        order: 0;
    }
}

/* Footer bottom with university info */
.university-info {
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.university-info p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    font-size: var(--text-sm);
}

.university-info h4 {
    color: var(--text-light);
    margin-bottom: var(--spacing-xs);
    font-size: var(--text-lg);
}

/* ===== Media Queries ===== */
/* Mobile landscape and small tablets */
@media (min-width: 576px) {
    .topics-grid, .speakers-grid, .info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .container {
        width: 100%;
        padding: 0 var(--spacing-lg);
    }
}

/* Medium tablets and small laptops */
@media (min-width: 768px) {
    /* Typography adjustments */
    h1 {
        font-size: var(--text-5xl); /* You can decrease this as well */
    }
    
    /* Layout adjustments */
    .section {
        padding-top: calc(var(--header-height) + var(--spacing-2xl));
    }
    
    .container {
        width: 100%;
        padding: 0 var(--spacing-xl);
    }
    
    /* Navigation */
    .mobile-menu-icon {
        display: none;
    }
    
    .nav-links {
        display: flex;
        align-items: center;
        gap: var(--spacing-lg);
    }
    
    .nav-links a {
        position: relative;
        color: var(--text-primary);
        font-weight: 500;
        padding: var(--spacing-xs) var(--spacing-sm);
        border-radius: var(--radius-sm);
        transition: all var(--transition-normal);
        text-shadow: 0 1px 2px rgba(255, 255, 255, 0.5);
    }
    
    .nav-links a::after {
        content: '';
        display: block;
        position: absolute;
        bottom: -4px;
        left: 0;
        width: 0;
        height: 2px;
        background-color: var(--primary-color);
        transition: width var(--transition-normal);
    }
    
    .nav-links a:hover {
        background-color: rgba(174, 214, 241, 0.2);
    }
    
    .nav-links a:hover::after, 
    .nav-links a.active::after {
        width: 100%;
    }
    
    .header-buttons {
        display: flex;
        gap: var(--spacing-sm);
    }
    
    /* Timeline */
    .timeline::before {
        left: 120px;
    }
    
    /* Schedule */
    .schedule-item {
        flex-direction: row;
        align-items: center;
    }
    
    .schedule-time {
        min-width: 120px;
        margin-right: var(--spacing-lg);
        margin-bottom: 0;
    }
    
    /* Contact */
    .contact-grid {
        grid-template-columns: 1fr 2fr;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr 2fr;
    }
    
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
    
    .footer-bottom p {
        margin-bottom: 0;
    }
}

/* Large laptops and desktops */
@media (min-width: 992px) {
    .topics-grid, .speakers-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .info-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-links {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .container {
        width: 100%;
        max-width: var(--container-width);
        padding: 0 var(--spacing-xl);
    }
}

/* Extra large desktops */
@media (min-width: 1200px) {
    .container {
        width: 100%;
        max-width: var(--container-width);
        padding: 0 var(--spacing-2xl);
        margin: 0 auto;
    }
    
    .section {
        padding-top: calc(var(--header-height) + var(--spacing-2xl));
    }
}

/* Ensure full width on very large screens */
@media (min-width: 1400px) {
    :root {
        --container-width: 1360px;
    }
}

/* ===== Animations ===== */
/* Animation classes for elements that come into view */
.animate-hidden {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Staggered animations for lists */
.topics-grid .topic-item:nth-child(2) {
    transition-delay: 0.1s;
}

.topics-grid .topic-item:nth-child(3) {
    transition-delay: 0.2s;
}

.topics-grid .topic-item:nth-child(4) {
    transition-delay: 0.3s;
}

.speakers-grid .speaker-card:nth-child(2) {
    transition-delay: 0.1s;
}

.speakers-grid .speaker-card:nth-child(3) {
    transition-delay: 0.2s;
}

.speakers-grid .speaker-card:nth-child(4) {
    transition-delay: 0.3s;
}

.info-grid .info-card:nth-child(2) {
    transition-delay: 0.1s;
}

.info-grid .info-card:nth-child(3) {
    transition-delay: 0.2s;
}

.info-grid .info-card:nth-child(4) {
    transition-delay: 0.3s;
}

/* Timeline item animations */
.timeline-item {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.timeline-item.animated {
    opacity: 1;
    transform: translateX(0);
}

.timeline-item:nth-child(2) {
    transition-delay: 0.2s;
}

.timeline-item:nth-child(3) {
    transition-delay: 0.4s;
}

.timeline-item:nth-child(4) {
    transition-delay: 0.6s;
}

/* Pulse animation for CTA buttons */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 64, 129, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(255, 64, 129, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(255, 64, 129, 0);
    }
}

.hero-buttons .btn-primary {
    animation: pulse 2s infinite;
}

/* Fade in animation for sections */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.section.active {
    animation: fadeIn 0.8s forwards;
}

/* ===== Sailing the Macro Workshop Specific Styles ===== */
:root {
    /* Update color scheme with nautical theme */
    --primary-color: #1a5276;      /* Deep blue */
    --primary-dark: #154360;       /* Darker blue */
    --primary-light: #aed6f1;      /* Light blue */
    --secondary-color: #e67e22;    /* Orange */
    --secondary-dark: #d35400;     /* Dark orange */
    --special-issue-color: #8b0000; /* Burgundy red for special issue */
    --special-issue-dark: #6b0000; /* Darker burgundy */
    --special-issue-light: #ffdede; /* Light burgundy */
}

/* Hero section with sailing background */
#home {
    background: linear-gradient(135deg, rgba(26, 82, 118, 0.1) 0%, rgba(174, 214, 241, 0.3) 100%);
}

/* Keynote speakers section on home page */
.speakers-container {
    margin-top: var(--spacing-2xl);
}

.speakers-container h3 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.speakers-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

@media (min-width: 576px) {
    .speakers-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Special Issue Box */
.special-issue-box {
    background: linear-gradient(135deg, rgba(107, 0, 0, 0.85), rgba(139, 0, 0, 0.85));
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    color: var(--text-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-xl);
    text-align: center;
    box-shadow: var(--shadow-lg);
    width: 100%;
}

.special-issue-box h3 {
    color: var(--text-light);
    margin-bottom: var (--spacing-md);
}

/* Special Issue CTA button */
.btn-special-issue {
    background-color: var(--special-issue-color);
    color: var(--text-light);
}

.btn-special-issue:hover {
    background-color: var(--special-issue-dark);
    color: var(--text-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Econometrics journal highlight */
.econometrics-journal {
    font-style: italic;
    font-weight: 500;
    color: var (--special-issue-color);
}

.macro-policy {
    font-weight: 600;
    color: var (--special-issue-color);
}

/* Improved Committee section */
.committee-section {
    margin-top: var (--spacing-2xl);
    text-align: center;
    width: 100%;
}

.committee-section h3 {
    margin-bottom: var(--spacing-lg);
    position: relative;
    display: inline-block;
}

.committee-section h3::after {
    content: '';
    display: block;
    width: 60%;
    height: 3px;
    background-color: var(--primary-color);
    position: absolute;
    bottom: -8px;
    left: 20%;
    border-radius: var(--radius-full);
}

.committee-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var (--spacing-md);
    width: 100%;
}

.committee-member {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
    border-left: 3px solid var(--primary-light);
}

.committee-member:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-left-color: var(--primary-color);
}

.committee-member p {
    margin-bottom: 0;
    font-weight: 600;
}

.committee-member span {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-weight: normal;
}

/* Committee member role categories */
.committee-role-title {
    margin: var(--spacing-xl) 0 var(--spacing-md);
    color: var(--primary-color);
    font-size: var(--text-lg);
    font-weight: 600;
}

.committee-divider {
    display: block;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-light), transparent);
    margin: var(--spacing-xl) 0;
}

@media (min-width: 576px) {
    .committee-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 768px) {
    .committee-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 992px) {
    .committee-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

@media (min-width: 1200px) {
    .committee-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

/* Sailing activities section */
.schedule-item.social {
    background-color: rgba(26, 82, 118, 0.1);
    border-left: 4px solid var(--primary-color);
}

.schedule-item.social h4 {
    color: var(--primary-color);
}

/* Organization footer */
.organizer-footer {
    text-align: center;
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var (--border-color);
}

/* Email contact styling */
.contact-email {
    display: block;
    color: var(--primary-color);
    font-weight: 500;
    margin-top: var(--spacing-sm);
}

.contact-email:hover {
    color: var(--secondary-color);
}

/* Small text for fee explanations */
.small-text {
    font-size: var(--text-xs);
    color: var(--text-secondary);
    margin-top: var(--spacing-sm);
}

/* Logo with image */
.logo {
    display: flex;
    align-items: center;
    position: relative;
}

.logo-img {
    height: 36px;
    width: auto;
    margin-right: 10px;
}

/* Editor links in special issue box */
.editor-link {
    color: var(--text-light);
    text-decoration: underline;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.editor-link:hover {
    color: var(--secondary-color);
}

/* Enhanced Venue Card */
.venue-card {
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.venue-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, transparent 50%, rgba(174, 214, 241, 0.2) 50%);
    border-radius: 0 0 0 100%;
    pointer-events: none;
}

.venue-details {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.venue-details p {
    margin-bottom: var(--spacing-md);
    font-size: var(--text-base);
    line-height: 1.7;
    text-align: center;
}

.venue-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    width: 100%;
    margin-top: auto;
}

.venue-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.venue-btn i {
    margin-right: var(--spacing-xs);
}

.venue-btn:hover {
    transform: translateY(-2px);
}

/* Remove the now unused welcome guide banner styles */
.welcome-guide-banner, 
.welcome-guide-content, 
.welcome-guide-icon, 
.welcome-guide-text, 
.welcome-guide-btn {
    /* These styles are no longer needed but we'll keep them commented out 
       in case we need to reference them later */
    /* display: none; */
}

/* Responsive adjustments for venue card */
@media (min-width: 768px) {
    .venue-actions {
        flex-direction: row;
        justify-content: center;
    }
    
    .venue-btn {
        width: auto;
    }
}

/* Make venue card clickable */
a.info-card {
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    transition: all var(--transition-normal);
}

a.info-card:hover, a.info-card:focus {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    border-bottom: 4px solid var(--secondary-color);
    outline: none;
}

a.info-card:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

a.info-card:after {
    content: '';
    position: absolute;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width var(--transition-normal);
    opacity: 0.7;
}

a.info-card:hover:after {
    width: 40%;
}

/* Remove the venue action styling since we don't have a separate button anymore */
.venue-action {
    display: none;
}

/* Adjust venue card details to fill full height */
.venue-card .venue-details p {
    margin-bottom: 0;
}

/* Additional Topic Grid Styles */
.topics-heading {
    margin-top: var(--spacing-2xl);
    text-align: center;
}

.topics-container {
    margin: var(--spacing-xl) 0;
    width: 100%;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.topic-item {
    background-color: var(--white);
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.topic-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.topic-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary);
    opacity: 0.7;
}

.topic-item.topic-economic-policy::before {
    background: linear-gradient(90deg, #3498db, #2980b9);
}

.topic-item.topic-macro-theory::before {
    background: linear-gradient(90deg, #27ae60, #2ecc71);
}

.topic-item.topic-international::before {
    background: linear-gradient(90deg, #e74c3c, #c0392b);
}

.topic-item.topic-financial::before {
    background: linear-gradient(90deg, #9b59b6, #8e44ad);
}

.topic-item.topic-emerging::before {
    background: linear-gradient(90deg, #f1c40f, #f39c12);
}

.topic-item.topic-econometrics::before {
    background: linear-gradient(90deg, #1abc9c, #16a085);
}

.topic-title {
    margin-top: 5px;
    margin-bottom: 15px;
    font-weight: 600;
    color: var(--text-dark);
}

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

.topic-item li {
    margin-bottom: 8px;
    font-size: 0.95rem;
    line-height: 1.4;
    color: var(--text-medium);
}

.topic-item.featured {
    border: 2px solid var(--primary-light);
    background-color: rgba(240, 247, 255, 0.5);
}

.special-focus {
    text-align: center;
    font-size: 1.1rem;
    font-weight: 500;
    max-width: 800px;
    margin: var(--spacing-xl) auto;
    padding: 15px;
    border-left: 4px solid var(--primary);
    background-color: rgba(240, 247, 255, 0.5);
    border-radius: 0 8px 8px 0;
}

/* Responsive adjustments for topic grid */
@media (max-width: 992px) {
    .topics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .topics-grid {
        grid-template-columns: 1fr;
    }
}

/* Enhanced Call for Papers section styling */
.call-for-papers-footer {
    margin-top: var(--spacing-2xl);
    width: 100%;
}

/* Unified Submission Card */
.unified-submission-card {
    max-width: 900px; /* Adjusted to match topic container width */
    margin: 0 auto;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(250, 250, 250, 0.95));
    border-radius: var(--radius-lg);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    position: relative;
    width: 100%;
    margin-bottom: var(--spacing-lg);
    max-width: none; /* Remove any max-width constraints */
}

.unified-submission-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3z' fill='%231a5276' fill-opacity='0.03' fill-rule='evenodd'/%3E%3C/svg%3E");
    opacity: 0.5;
    z-index: 0;
}

.special-focus-section {
    padding: var(--spacing-xl);
    background: linear-gradient(to right, rgba(26, 82, 118, 0.05), rgba(26, 82, 118, 0.1));
    border-bottom: 1px solid rgba(26, 82, 118, 0.1);
    position: relative;
    z-index: 1;
    width: 100%;
    margin-bottom: var(--spacing-md);
}

.special-focus-section p {
    margin-bottom: 0;
    font-size: 1.15rem;
    line-height: 1.6;
    color: var(--text-primary);
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.card-divider {
    height: 3px;
    width: 80%;
    margin: 0 auto;
    background: linear-gradient(to right, transparent, rgba(26, 82, 118, 0.3), transparent);
}

.submission-info-section {
    padding: var(--spacing-xl);
    position: relative;
    z-index: 1;
}

.submission-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    background-color: rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(26, 82, 118, 0.1);
    transform: scale(0.98);
    opacity: 0.85;
    transition: all var(--transition-normal), transform 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.6s ease;
}

.submission-option.animate-in {
    transform: scale(1);
    opacity: 1;
}

.submission-option:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    background-color: rgba(255, 255, 255, 0.8);
}

.submission-option.special-issue {
    border: 1px solid rgba(139, 0, 0, 0.1);
    background-color: rgba(255, 255, 255, 0.5);
}

.submission-option.special-issue:hover {
    background-color: rgba(255, 255, 255, 0.8);
}

.submission-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-normal);
}

.submission-option:hover .submission-icon {
    transform: translateY(-3px) scale(1.05);
}

.submission-option .submission-icon {
    background-color: rgba(26, 82, 118, 0.1);
    color: var(--primary-color);
}

.submission-option.special-issue .submission-icon {
    background-color: rgba(139, 0, 0, 0.08);
    color: var(--special-issue-color);
}

.submission-text {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.submission-text h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
    font-size: 1.3rem;
}

.submission-option.special-issue .submission-text h3 {
    color: var(--special-issue-color);
}

.submission-text p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    max-width: 600px;
}

.submission-note {
    font-size: 0.9rem;
    font-style: italic;
    color: var(--text-secondary);
    margin: var(--spacing-sm) 0;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: rgba(139, 0, 0, 0.05);
    border-radius: var(--radius-sm);
    display: inline-block;
}

.editor-link {
    color: var(--special-issue-color);
    font-weight: 500;
    text-decoration: none;
    border-bottom: 1px dotted var(--special-issue-color);
    transition: all var(--transition-fast);
}

.editor-link:hover {
    color: var(--special-issue-dark);
    border-bottom-color: var(--special-issue-dark);
}

.submission-action {
    margin-top: var(--spacing-sm);
}

.submission-action .btn {
    transform: translateY(0);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), background-color var(--transition-fast);
}

.submission-option:hover .submission-action .btn {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Special pulsing effect for submit buttons when cards are animated in */
@keyframes buttonPulse {
    0% {
        box-shadow: 0 0 0 0 rgba(var(--primary-color-rgb, 26, 82, 118), 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(var(--primary-color-rgb, 26, 82, 118), 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(var(--primary-color-rgb, 26, 82, 118), 0);
    }
}

.submission-option.animate-in .btn-primary {
    animation: buttonPulse 2s infinite;
}

@keyframes buttonPulseSecondary {
    0% {
        box-shadow: 0 0 0 0 rgba(var(--special-issue-color-rgb, 139, 0, 0), 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(var(--special-issue-color-rgb, 139, 0, 0), 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(var(--special-issue-color-rgb, 139, 0, 0), 0);
    }
}

.submission-option.special-issue.animate-in .btn-secondary {
    animation: buttonPulseSecondary 2s infinite;
}

/* Staggered animation for submission requirements and notices */
.submission-requirements,
.important-notice,
.special-issue-details {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    background-color: rgba(255, 255, 255, 0.7);
    border-left: 3px solid var(--primary-color);
    transform: translateY(20px);
    opacity: 0;
    transition: transform 0.5s ease, opacity 0.5s ease;
}

.submission-option.animate-in .submission-requirements,
.submission-option.animate-in .important-notice,
.submission-option.animate-in .special-issue-details {
    transform: translateY(0);
    opacity: 1;
    transition-delay: 0.3s;
}

.submission-option.animate-in .submission-icon {
    animation: popIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes popIn {
    0% {
        transform: scale(0.8);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

.submission-option.special-issue .submission-requirements,
.submission-option.special-issue .important-notice,
.special-issue-details {
    border-left-color: var(--special-issue-color);
}

.submission-requirements h4,
.important-notice h4,
.special-issue-details h4 {
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
    color: var(--text-primary);
}

.submission-requirements ul {
    margin: 0;
    padding-left: var(--spacing-lg);
}

.submission-requirements li {
    margin-bottom: var(--spacing-xs);
}

.important-notice {
    border-left-color: #e67e22;
    background-color: rgba(230, 126, 34, 0.1);
}

.important-notice h4 {
    color: #d35400;
}

/* Ensure proper spacing in submission text */
.submission-text > p:last-of-type {
    margin-bottom: var(--spacing-md);
}

/* Media queries for submission options */
@media (min-width: 768px) {
    .submission-option {
        flex-direction: row;
        align-items: flex-start;
        text-align: left;
        padding: var(--spacing-xl);
    }
    
    .submission-icon {
        margin-right: var(--spacing-lg);
        margin-bottom: 0;
    }
    
    .submission-text {
        flex: 1;
        text-align: left;
        margin-bottom: 0;
        padding-right: var(--spacing-lg);
    }
    
    .submission-action {
        display: flex;
        align-items: center;
        margin-top: 0;
    }
    
    .special-focus-section p {
        font-size: 1.2rem;
    }
}

/* Remove old styling classes that are no longer needed */
.special-focus-container,
.special-focus,
.special-focus-icon,
.action-cards-container,
.action-card,
.action-card-icon,
.action-buttons,
.cta-box, 
.special-issue-box {
    display: none;
}

/* Unified submission card - ensure full width */
.unified-submission-card {
    width: 100%;
    margin-bottom: var(--spacing-lg);
}

.special-focus-section {
    width: 100%;
    margin-bottom: var(--spacing-md);
}

/* Make sure all cards in the call-for-papers section use full width */
.call-for-papers-footer > div {
    width: 100%;
    display: block;
}

/* Fix for the topic and submission cards alignment */
.topics-container {
    margin: var(--spacing-xl) 0;
    width: 100%;
}

/* Ensure submission cards match topics width exactly */
.unified-submission-card {
    width: 100%;
    margin-bottom: var(--spacing-lg);
    max-width: none; /* Remove any max-width constraints */
}

.special-focus-section {
    width: 100%;
    margin-bottom: var(--spacing-md);
}

/* This ensures both the topics and submission sections use the same container width */
.call-for-papers-footer {
    margin-top: var(--spacing-2xl);
    width: 100%;
}

/* Remove any horizontal padding that might be causing width differences */
.call-for-papers-footer > div,
.topics-container > div {
    padding-left: 0;
    padding-right: 0;
    box-sizing: border-box;
}

/* Ensure consistent container widths */
.topics-container,
.call-for-papers-footer {
    max-width: 100%;
    padding-left: 0;
    padding-right: 0;
}

/* Logo sailing animation */
.logo {
    position: relative;
    overflow: hidden;
}

.logo a {
    position: relative;
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
}

.logo-img {
    position: relative;
    z-index: 1;
    transition: transform 0.8s ease-in-out;
}

.logo-text {
    position: relative;
    z-index: 2;
}

@keyframes sailBehind {
    0% {
        transform: translateX(0);
    }
    100% {
        /* Adjust this value to ensure it travels the full text width */
        transform: translateX(calc(200% + 20px));
    }
}

.logo-sailing .logo-img {
    animation: sailBehind 2s ease-in-out forwards;
}

/* Add styling for the new submission components */
.submission-requirements,
.important-notice,
.special-issue-details {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    background-color: rgba(255, 255, 255, 0.7);
    border-left: 3px solid var(--primary-color);
}

.submission-option.special-issue .submission-requirements,
.submission-option.special-issue .important-notice,
.special-issue-details {
    border-left-color: var(--special-issue-color);
}

.submission-requirements h4,
.important-notice h4,
.special-issue-details h4 {
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
    color: var(--text-primary);
}

.submission-requirements ul {
    margin: 0;
    padding-left: var(--spacing-lg);
}

.submission-requirements li {
    margin-bottom: var(--spacing-xs);
}

.important-notice {
    border-left-color: #e67e22;
    background-color: rgba(230, 126, 34, 0.1);
}

.important-notice h4 {
    color: #d35400;
}

/* Ensure proper spacing in submission text */
.submission-text > p:last-of-type {
    margin-bottom: var(--spacing-md);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .submission-requirements,
    .important-notice,
    .special-issue-details {
        padding: var(--spacing-sm);
        margin-top: var(--spacing-sm);
    }
}

/* Additional styling for session items (papers) - matches 2024 past events hover effect */
.session-item {
    display: flex;
    flex-direction: column;
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.session-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.session-title {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.session-authors {
    font-style: italic;
    color: var(--text-secondary);
    font-size: 0.9em;
}

.session-time {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.session-chair {
    font-size: 0.9em;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-sm);
    font-style: italic;
}