:root{
  --accent:#4f46e5;   
  --muted:#6b7280;
  --bg:#0f172a;
  --card:#0b1220;
  --glass: rgba(255,255,255,0.04);
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial;
  background: linear-gradient(180deg,#020617 0%, #07102a 100%);
  color:#e6eef8;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.45;
}

header{
  max-width:1100px;
  margin:24px auto;
  padding:18px;
  display:flex;
  align-items:center;
  justify-content:space-between; 
  flex-direction: column; 
  text-align: center;
  position: relative;
}

.IBM{
  background: #fff;
  border-radius: 15px;
  height: 220px;
  width: auto;
  background-position: 100%;
  padding: 15px;
  margin-bottom: 20px;
}
.logoIn { 
  width: 100%; 
  display: flex; 
  justify-content: space-between; 
  position: absolute; 
  top: 56%; 
  left: 0; 
  right: 0; 
  padding: 10px 20px; 
}

.logo-img{
  height: 120px; 
  width: auto;
  align-items: start;
  border-radius: 14px;                 
  padding: 8px;                      
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}


.logo-img:hover{
  transform: scale(1.05);      
  box-shadow: 0 10px 28px rgba(79,70,229,0.5);
}

nav a{color:var(--muted);text-decoration:none;margin-left:18px;font-weight:600}
nav a:hover{color:#fff}

.hero{
  max-width:1100px;
  margin:18px auto;
  padding:32px;
  display:grid;
  grid-template-columns:1fr 420px;
  gap:28px;
  align-items:center;
}

.hero-card{
  background:linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
  border-radius:14px;
  padding:28px;
  box-shadow:0 10px 30px rgba(2,6,23,0.6);
  backdrop-filter: blur(6px);
}

h1{margin:0 0 12px 0;font-size:28px;letter-spacing:-0.6px}
p.lead{color:var(--muted);margin:0 0 18px 0}

.cta-row{display:flex;gap:12px;margin-top:18px}

.btn{
  padding:10px 16px;border-radius:10px;border:0;font-weight:700;cursor:pointer;  
  background:var(--accent); color:white;box-shadow:0 8px 20px rgba(79,70,229,0.18)
}
 
.btn.ghost{background:transparent;color:var(--accent);border:1px solid rgba(255,255,255,0.06)}

.info{
  display:flex;
  gap:12px;
  margin-top:18px;
  flex-wrap:wrap;
}
   
.pill{
  background:var(--glass);    
  padding:8px 12px;border-radius:999px;color:var(--muted);font-weight:600;font-size:13px
}

.aside{
  background:linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
  padding:24px;             
  border-radius:14px; 
  box-shadow:0 10px 28px rgba(2,6,23,0.6);
  max-width: 800px;           
  margin: 0 auto;            
}

.banner-img {
  width: 100%;       
  max-width: 750px;   
  height: auto;       
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.4);
}

.container1 {
  background-image: url(FondoORG.png);
  background-size: cover; 
  background-position: center;
  background-repeat: no-repeat;
  border-radius: 16px;
  padding: 40px 24px; 
  margin: 28px auto;
  max-width: 1200px;
  overflow: hidden; 
  position: relative; 
}


.container{
  max-width:1100px;
  margin:28px auto;
  padding:0 18px
} 

.grid-3 {
  display: flex;  
  gap: 18px;
  justify-content: center;
  align-items: flex-start; 
  flex-wrap: wrap;      
}

.day-column {
  flex: 1 1 0;
  min-width: 280px;
  text-align: center;
}

.card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  height: 100%;
}

.speakers{display:flex;gap:12px;flex-wrap:wrap}
.speaker{display:flex;gap:12px;align-items:center}
.avatar{width:56px;height:56px;border-radius:10px;background:linear-gradient(135deg,#06b6d4,#8b5cf6);display:inline-flex;align-items:center;justify-content:center;font-weight:700;color:#041022}

footer{max-width:1100px;margin:40px auto;color:var(--muted);padding:18px;text-align:center;font-size:14px}

.organizers-section { text-align: center; 
  padding: 15px 3px; 
  background-image: url("Org.jpg"); 
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  border-radius: 15px ;
} 

.organizers-section h2 { 
  font-size: 2rem; 
  margin-bottom: 30px; 
  color: #0785a5; 
} 
  
.organizers { 
  display: flex; 
  justify-content: center; 
  flex-wrap: wrap; 
  gap: 30px; 
} 

.organizer {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  width: 180px;      
  padding: 14px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.organizer img {
  height: 160px;      
  object-fit: cover;
}

.organizer:hover { 
  transform: translateY(-8px); 
  box-shadow: 0 8px 20px rgba(0,0,0,0.2); 
}
.organizer img { 
  width: 100%; 
  height: 160px; 
  object-fit: cover; 
  border-radius: 8px; 
  margin-bottom: 15px; 
} 

.organizer p { 
  font-size: 1rem; 
  color: #333; 
  line-height: 1.4; 
} 
.organizer strong { 
  font-size: 1.1rem; 
  color: #111; 
}

@media (max-width:900px){
  .hero{grid-template-columns:1fr; padding:18px}
  .grid-3{grid-template-columns:1fr}
}

.day-column h3 {
  margin-bottom: 14px;
  font-size: 1.3rem;
  color: #a5b4fc;
  text-shadow: 0 0 6px rgba(79,70,229,0.4);
}

.day-column .card {
  background: rgba(255,255,255,0.04);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.3);
  transition: transform 0.2s ease, box-shadow 0.3s ease;
}

.day-column .card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 28px rgba(79,70,229,0.25);
}

.program-grid {
  display: grid;
  grid-template-columns: 1fr repeat(3, 1fr);
  gap: 18px;
  align-items: start;
  justify-items: stretch;
}

.program-column {
  display: contents;
}

.program-column h3 {
  color: #a5b4fc;
  font-size: 1.2rem;
  margin-bottom: 12px;
  text-shadow: 0 0 6px rgba(79, 70, 229, 0.4);
}

.program-time,
.program-card {
  background: rgba(255, 255, 255, 0.04);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--muted);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.3s ease;
  height: 100%;
}

.program-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(79, 70, 229, 0.25);
}

.program-time {
  font-weight: 600;
  color: #c7d2fe;
}

@media (max-width: 900px) {
  .program-grid {
    grid-template-columns: 1fr;
  }
  .program-column h3 {
    margin-top: 20px;
  }
}

.program-table {
  display: grid;
  grid-template-columns: 1fr repeat(3, 1fr);
  gap: 10px;
  margin-top: 30px;
  text-align: center;
}

.program-table .header {
  font-weight: bold;
  font-size: 1.1rem;
  color: #a5b4fc;
  text-shadow: 0 0 6px rgba(79,70,229,0.4);
}

.program-table .cell {
  background: rgba(255,255,255,0.04);
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.25);
  padding: 14px;
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, box-shadow 0.3s ease;
}

.program-table .cell:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(79,70,229,0.25);
}

.program-table .time {
  font-weight: 600;
  color: #c7d2fe;
}

@media (max-width: 900px) {
  .program-table {
    grid-template-columns: 1fr;
  }
}

.cards-grid {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 24px;
  margin-bottom: 100px;
}

.info-card {
  background: rgba(255, 255, 255, 0.04);
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.3);
  width: 280px;
  padding: 20px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.info-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 28px rgba(79, 70, 229, 0.25);
}

.info-card .card-img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 14px;
}

.info-card h3 {
  color: #a5b4fc;
  margin-bottom: 10px;
}

.info-card p {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.info-card a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.info-card a:hover {
  text-decoration: underline;
}

.hackathon-section {
  background: rgba(255, 255, 255, 0.05);
  max-width: 900px;
  margin: 40px auto;
  padding: 20px;
  text-align: center;
  border-radius: 12px;
  backdrop-filter: blur(4px);
  box-shadow: 0 0 20px rgba(0,0,0,0.25);
}

.hackathon-section h2 {
  color: #fff;
  margin-bottom: 10px;
}

.hackathon-subtitle {
  font-size: 18px;
  color: #9ecbff;
  margin-bottom: 22px;
}

.hackathon-card {
  padding: 24px 28px;
  color: #d9e5ff;
  line-height: 1.65;
  text-align: justify;
}

.hackathon-card ul {
  margin-left: 22px;
  margin-top: 10px;
}

.hackathon-card li {
  margin-bottom: 8px;
}