:root {
--primary-color: #0d233a; /* Deep Navy */
--secondary-color: #00a8cc; /* Vibrant Cyan */
--accent-color: #0071bc; /* Mid Blue */
--text-color: #333333;
--text-light: #666666;
--bg-light: #f4f7f6;
--bg-white: #ffffff;
--border-radius: 8px;
--transition: all 0.3s ease;
}

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

body {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
line-height: 1.6;
color: var(--text-color);
background-color: var(--bg-light);
}

.container {
max-width: 1200px;
margin: 0 auto;
padding: 0 20px;
}

.wip-banner {
background: #fff7d6;
color: #6b4f00;
border-bottom: 1px solid #ead78f;
text-align: center;
font-size: 0.92rem;
font-weight: 600;
padding: 10px 16px;
letter-spacing: 0.2px;
}

/* Header & Navigation Styling */
header {
background-color: var(--bg-white);
box-shadow: 0 2px 10px rgba(0,0,0,0.05);
padding: 15px 0;
position: sticky;
top: 0;
z-index: 1000;
}

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

.logo-group {
display: flex;
align-items: center;
gap: 20px;
}

.logo-group img {
height: 55px;
width: auto;
object-fit: contain;
}

/* Hero Section */
.hero {
background: linear-gradient(135deg, var(--primary-color) 0%, #1a3a5f 100%);
color: var(--bg-white);
padding: 70px 0;
text-align: center;
position: relative;
}

.hero::before {
content: '';
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: radial-gradient(circle at 80% 20%, rgba(0, 168, 204, 0.15) 0%, transparent 50%);
pointer-events: none;
}

.hero h1 {
font-size: 3.2rem;
margin-bottom: 0;
font-weight: 700;
letter-spacing: 0.4px;
line-height: 1.05;
text-align: left;
}

.hero .workshop-title {
font-size: 1.9rem;
color: var(--secondary-color);
margin-bottom: 0;
text-transform: uppercase;
letter-spacing: 1.4px;
font-weight: 700;
text-align: left;
line-height: 1.2;
text-shadow: 0 1px 2px rgba(13, 35, 58, 0.35);
}

.hero-header-block {
display: inline-flex;
flex-direction: column;
align-items: flex-start;
width: min(100%, 1100px);
gap: 18px;
}

.hero-top-row {
display: flex;
align-items: center;
gap: 22px;
}

.hero-title-stack {
display: flex;
flex-direction: column;
gap: 8px;
align-items: flex-start;
}

.hero-teacxr-logo {
height: 142px;
width: auto;
object-fit: contain;
border-radius: 14px;
filter: drop-shadow(0 3px 8px rgba(0,0,0,0.2));
}

.hero .meta-info {
font-size: 1.1rem;
background: rgba(255, 255, 255, 0.1);
display: block;
padding: 12px 24px;
border-radius: 50px;
backdrop-filter: blur(5px);
border: 1px solid rgba(255, 255, 255, 0.2);
text-align: center;
width: 100%;
}

.hero .meta-info a {
color: #ffffff;
font-weight: 600;
text-decoration: underline;
text-decoration-thickness: 2px;
text-underline-offset: 3px;
text-decoration-color: rgba(255, 255, 255, 0.75);
}

.hero .meta-info a:hover,
.hero .meta-info a:focus-visible {
text-decoration-color: #ffffff;
background: rgba(255, 255, 255, 0.14);
border-radius: 6px;
outline: none;
}

/* Main Content Layout */
main {
padding: 40px 0;
}

.section-card {
background: var(--bg-white);
padding: 35px;
border-radius: var(--border-radius);
box-shadow: 0 4px 6px rgba(0,0,0,0.02);
margin-bottom: 30px;
}

h2 {
color: var(--primary-color);
margin-bottom: 20px;
position: relative;
padding-bottom: 8px;
font-size: 1.8rem;
}

h2::after {
content: '';
position: absolute;
bottom: 0;
left: 0;
width: 50px;
height: 3px;
background-color: var(--secondary-color);
}

p {
margin-bottom: 15px;
font-size: 1.05rem;
color: #4a5568;
}

.sr-only {
position: absolute;
width: 1px;
height: 1px;
padding: 0;
margin: -1px;
overflow: hidden;
clip: rect(0, 0, 0, 0);
white-space: nowrap;
border: 0;
}

/* Dynamic Two-Column Break for Main Body & Dates */
.content-split {
display: grid;
grid-template-columns: 7fr 5fr;
gap: 30px;
}

/* Themes & Topics Structure */
.theme-cluster {
margin-bottom: 25px;
}

.topics-grid {
padding-left: 1.35rem;
margin: 0;
list-style-position: outside;
}

.topic-item {
margin-bottom: 4px;
color: #4a5568;
padding-left: 2px;
}

.topic-item:last-child {
margin-bottom: 0;
}

.theme-title {
font-size: 1.2rem;
font-weight: bold;
color: var(--accent-color);
margin-bottom: 10px;
display: flex;
align-items: center;
gap: 10px;
}

.theme-list {
list-style: none;
padding-left: 15px;
}

.theme-list li {
position: relative;
margin-bottom: 8px;
color: #4a5568;
padding-left: 15px;
}

.theme-list li::before {
content: "•";
color: var(--secondary-color);
font-weight: bold;
position: absolute;
left: 0;
}

/* Submission Categories styling */
.category-block {
margin-bottom: 20px;
padding-bottom: 20px;
border-bottom: 1px solid #edf2f7;
}

.category-block:last-child {
border-bottom: none;
padding-bottom: 0;
margin-bottom: 0;
}

.category-title {
font-weight: bold;
color: var(--primary-color);
font-size: 1.1rem;
}

/* Important Dates Timeline styling */
.dates-list {
list-style: none;
}

.date-item {
display: flex;
justify-content: space-between;
align-items: center;
gap: 14px;
padding: 14px 0;
border-bottom: 1px dashed #e2e8f0;
}

.date-item:last-child {
border-bottom: none;
}

.date-label {
font-weight: 600;
color: var(--primary-color);
padding-right: 6px;
}

.date-value {
background-color: #e3fafc;
color: var(--primary-color);
padding: 6px 14px;
border-radius: 4px;
font-weight: bold;
font-size: 0.95rem;
border: 1px solid #bbeeec;
white-space: nowrap;
}

/* Agenda Table Styling */
.agenda-table {
width: 100%;
border-collapse: collapse;
margin-top: 15px;
}

.agenda-table th, .agenda-table td {
padding: 15px;
text-align: left;
border-bottom: 1px solid #e2e8f0;
}

.agenda-table th {
background-color: var(--primary-color);
color: var(--bg-white);
font-weight: 600;
}

.agenda-table tr:nth-child(even) td {
background-color: #fafbfc;
}

.time-badge {
font-weight: bold;
color: var(--accent-color);
font-family: monospace;
font-size: 1rem;
}

/* Organizing Committee Grid Layout */
.committee-grid {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
gap: 25px;
margin-top: 20px;
}

.organizer-card {
background: #fafbfc;
border: 1px solid #e2e8f0;
border-radius: var(--border-radius);
padding: 25px;
transition: var(--transition);
}

.organizer-header {
display: flex;
align-items: flex-start;
gap: 16px;
margin-bottom: 12px;
}

.org-avatar,
.org-avatar-fallback {
width: 92px;
height: 92px;
border-radius: 50%;
flex-shrink: 0;
}

.org-avatar {
object-fit: cover;
border: 2px solid #d8e6f2;
background: #edf2f7;
}

.org-avatar-fallback {
display: none;
align-items: center;
justify-content: center;
font-size: 0.95rem;
font-weight: 700;
color: #ffffff;
background: linear-gradient(140deg, var(--accent-color), var(--secondary-color));
border: 2px solid #d8e6f2;
}

.org-header-text {
min-width: 0;
padding-top: 4px;
}

.organizer-card:hover {
box-shadow: 0 10px 20px rgba(0,0,0,0.05);
border-color: var(--secondary-color);
}

.org-name {
font-size: 1.3rem;
font-weight: bold;
color: var(--primary-color);
line-height: 1.25;
}

.org-affil {
font-size: 0.98rem;
color: var(--accent-color);
font-weight: 600;
margin-top: 4px;
margin-bottom: 2px;
}

.org-dept {
font-size: 0.9rem;
color: #5f6f82;
margin-bottom: 8px;
}

.org-title {
display: inline-block;
font-size: 0.85rem;
font-weight: 700;
color: #1f4e79;
background: #e8f1fb;
border: 1px solid #c8dff5;
border-radius: 999px;
padding: 4px 10px;
}

.org-email {
font-size: 0.9rem;
margin-bottom: 12px;
}

.org-email a {
color: var(--secondary-color);
text-decoration: none;
font-weight: bold;
}

.org-link {
display: inline-block;
margin-top: 2px;
font-size: 0.9rem;
color: var(--accent-color);
text-decoration: none;
font-weight: 600;
}

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

/* PC Committee Minimal Layout */
.pc-grid {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
gap: 15px;
margin-top: 15px;
}

.pc-item {
background: #f8fafc;
padding: 12px 20px;
border-radius: 6px;
border: 1px solid #edf2f7;
font-size: 0.95rem;
}

.pc-item span {
color: #718096;
font-size: 0.85rem;
}

/* Submission Guidelines Highlights Box */
.guidelines-box {
background-color: #f0f7ff;
border: 1px solid #d0e6ff;
border-left: 5px solid var(--accent-color);
padding: 25px;
border-radius: var(--border-radius);
}

/* Contact Section */
.contact-section p {
margin-bottom: 0;
font-size: 1.05rem;
}

.contact-section a {
color: var(--accent-color);
font-weight: 700;
text-decoration: underline;
text-underline-offset: 2px;
}

.contact-section a:hover,
.contact-section a:focus-visible {
color: var(--secondary-color);
outline: none;
}

/* Institutional Supporters Section */
.institutions {
text-align: center;
background: var(--bg-white);
padding: 40px 0;
border-top: 1px solid #e2e8f0;
}

.institutions h3 {
color: #718096;
font-size: 0.9rem;
text-transform: uppercase;
letter-spacing: 1.5px;
margin-bottom: 25px;
}

.institution-logos {
display: flex;
justify-content: center;
align-items: center;
flex-wrap: wrap;
gap: 50px;
}

.institution-logos a {
display: inline-flex;
align-items: center;
justify-content: center;
border-radius: 6px;
}

.institution-logos img {
max-height: 50px;
max-width: 190px;
object-fit: contain;
transition: var(--transition);
}

/* Footer */
footer {
background-color: var(--primary-color);
color: #a0aec0;
text-align: center;
padding: 25px 0;
font-size: 0.9rem;
}

/* Responsive Design Breakpoints */
@media (max-width: 992px) {
.content-split {
    grid-template-columns: 1fr;
}
}

@media (max-width: 600px) {
.hero h1 {
    font-size: 2.2rem;
    text-align: center;
}
.hero .workshop-title {
    font-size: 1.24rem;
    text-align: center;
}

.hero-header-block {
    width: 100%;
    gap: 12px;
    align-items: center;
}

.hero-top-row {
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.hero-title-stack {
    align-items: center;
}

.hero-teacxr-logo {
    height: 104px;
}

.hero .meta-info {
    font-size: 0.9rem;
    border-radius: 12px;
}
.section-card {
    padding: 20px;
}
.logo-group img {
    height: 40px;
}
.date-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 5px;
}
.date-value {
    align-self: flex-start;
}
.agenda-table th, .agenda-table td {
    padding: 10px;
    font-size: 0.9rem;
}

.org-avatar,
.org-avatar-fallback {
    width: 72px;
    height: 72px;
}

.org-name {
    font-size: 1.15rem;
}

.wip-banner {
    font-size: 0.84rem;
    padding: 9px 10px;
}
}