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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: #f5f5f5;
  overflow-x: hidden;
}

.event-hero {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  color: white;
  padding: 1rem 0;
}

/* Header with logos and title */
.hero-header {
  display: flex;
  justify-content: space-between;
  flex-direction: column;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero-logos {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.logo-infosys,
.logo-intel {
  height: 60px;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.logo-infosys:hover,
.logo-intel:hover {
  transform: scale(1.05);
}

.hero-title {
  text-align: left;
}

.hero-title h1 {
  font-size: -webkit-xxx-large;
  font-weight: 600;
  margin-bottom: 0.3rem;
  color: #ffffff;
}

.event-tag {
  display: inline-block;
  background: linear-gradient(135deg, #ff6b35, #ff8c42);
  color: white;
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.3px;
}

/* Hero Content */
.hero-content {
  text-align: left;
}

.hero-content h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: #bbdefb;
}

.hero-content h3 {
  font-size: 1.1rem;
  color: #e3f2fd;
  margin-bottom: 0.8rem;
}

.hero-content p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: #e3f2fd;
  max-width: 800px;
}

@media (max-width: 768px) {
  .hero-title h1 {
    font-size: 2rem;
  }
  .hero-content h2 {
    font-size: 1.2rem;
  }
  .hero-content p {
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .hero-title h1 {
    font-size: 1.8rem;
  }
  .logo-infosys,
  .logo-intel {
    height: 50px;
  }
}

/* Header - Reduced Height */
header {
  background: white;
  padding: 0.8rem 1.5rem;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 1.8rem;
}

.logo-infosys {
  height: 80px;
  width: 120px;
  object-fit: contain;
}

.logo-intel {
  height: 80px;
  width: 120px;
  object-fit: contain;
}

.header-badge {
  background: linear-gradient(135deg, #ff6b35 0%, #ff8c42 100%);
  color: white;
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  animation: pulse 2s infinite;
}

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

/* Main Container */
.main-container {
  display: flex;
  height: 100vh;
}

/* Left Side - Event Details (70%) */
.event-details-section {
  width: 70%;
  background: linear-gradient(135deg, #003d5c 0%, #005a8c 100%);
  padding: 2rem 2.5rem;
  overflow-y: auto;
  color: white;
}

.event-tag {
  display: inline-block;
  background: linear-gradient(135deg, #ff6b35 0%, #ff8c42 100%);
  color: white;
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.3px;
}

/* Event Info Boxes */
.event-info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.info-box {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 1rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: transform 0.3s;
}

.info-box:hover {
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.15);
}

.info-box .icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.info-box .label {
  font-size: 0.7rem;
  color: #bbdefb;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  margin-bottom: 0.2rem;
}

.info-box .value {
  font-size: 0.9rem;
  font-weight: 700;
  color: white;
  line-height: 1.3;
}

/* Gift Banner */
.gift-banner {
  background: linear-gradient(135deg, #ff6b35 0%, #ff8c42 100%);
  padding: 1rem;
  border-radius: 12px;
  text-align: center;
  margin-bottom: 1.5rem;
  box-shadow: 0 8px 20px rgba(255, 107, 53, 0.4);
}

.gift-banner h3 {
  font-size: 1.1rem;
  margin-bottom: 0.3rem;
}

.gift-banner p {
  font-size: 0.85rem;
  font-weight: 600;
}

/* Highlights */
.highlights {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 1.2rem;
  border-radius: 12px;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.highlights h3 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: white;
}

.highlight-item {
  background: rgba(255, 255, 255, 0.1);
  padding: 0.8rem;
  border-radius: 8px;
  margin-bottom: 0.8rem;
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  border-left: 3px solid #00d4ff;
}

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

.highlight-item .icon {
  font-size: 1.3rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.highlight-item p {
  color: #e3f2fd;
  font-size: 0.85rem;
  line-height: 1.5;
}

/* Speakers */
.speakers {
  margin-bottom: 1rem;
}

.speakers h3 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: white;
}

.speakers-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.speaker-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 1rem;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: transform 0.3s;
}

.speaker-card:hover {
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.15);
}

.speaker-card h4 {
  color: white;
  margin-bottom: 0.3rem;
  font-size: 0.95rem;
}

.speaker-card .role {
  color: #00d4ff;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.speaker-card .company {
  color: #bbdefb;
  font-size: 0.75rem;
}

.note-box {
  background: rgba(255, 255, 255, 0.1);
  padding: 1rem;
  border-radius: 10px;
  margin-top: 1.5rem;
  border-left: 3px solid #00d4ff;
}

.note-box p {
  margin: 0;
  font-size: 0.85rem;
  color: #e3f2fd;
  line-height: 1.5;
}

/* Right Side - Registration Form (30%) */
.registration-section {
  width: 30%;
  background: white;
  padding: 2rem 1.5rem;
  overflow-y: auto;
  box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
}

.registration-section h2 {
  color: #003d5c;
  margin-bottom: 0.3rem;
  font-size: 1.5rem;
}

.registration-section .subtitle {
  color: #0071c5;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 600;
  color: #555;
  font-size: 0.85rem;
}

.form-group label .required {
  color: #ff3333;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.65rem;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  font-size: 0.9rem;
  transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: #0071c5;
}

.form-group select {
  cursor: pointer;
  background-color: white;
}

.btn-submit {
  width: 100%;
  padding: 0.9rem;
  background: linear-gradient(135deg, #0071c5 0%, #005a9e 100%);
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s;
  margin-top: 1rem;
  box-shadow: 0 8px 20px rgba(0, 113, 197, 0.3);
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(0, 113, 197, 0.4);
}

.alert {
  padding: 0.8rem;
  margin-bottom: 1rem;
  border-radius: 8px;
  text-align: center;
  font-weight: 500;
  font-size: 0.85rem;
}

/* Responsive Design */
@media (max-width: 1366px) {
  .event-hero p {
    font-size: 0.85rem;
  }
}

@media (max-width: 1024px) {
  .main-container {
    flex-direction: column;
    height: auto;
  }

  .event-details-section,
  .registration-section {
    width: 100%;
  }

  .event-details-section {
    min-height: auto;
    padding: 2rem;
  }

  .registration-section {
    padding: 2rem;
  }

  .event-info-grid,
  .speakers-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  header {
    padding: 0.8rem 1rem;
  }

  .logo-container {
    gap: 1rem;
  }

  .logo-infosys {
    height: 80px;
    width: 120px;
  }

  .logo-intel {
    height: 80px;
  }

  .header-badge {
    font-size: 0.7rem;
    padding: 0.3rem 0.8rem;
  }

  .event-details-section {
    padding: 1.5rem;
  }

  .event-info-grid {
    grid-template-columns: 1fr;
  }

  .speakers-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .event-hero p {
    font-size: 0.8rem;
  }
}

/* Scrollbar Styling */
.event-details-section::-webkit-scrollbar,
.registration-section::-webkit-scrollbar {
  width: 6px;
}

.event-details-section::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.1);
}

.event-details-section::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.3);
  border-radius: 3px;
}

.registration-section::-webkit-scrollbar-track {
  background: #f0f0f0;
}

.registration-section::-webkit-scrollbar-thumb {
  background: #0071c5;
  border-radius: 3px;
}
.alert.success {
  background-color: #d4edda;
  color: #155724;
  border: 2px solid #c3e6cb;
  font-size: 0.95rem;
  animation: slideDown 0.5s ease-out;
}

.alert.error {
  background-color: #fee;
  color: #c33;
  border: 2px solid #fcc;
  animation: shake 0.5s ease-out;
}

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

@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-10px);
  }
  75% {
    transform: translateX(10px);
  }
}