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

:root {
  --primary-orange: #e67e22;
  --dark-orange: #d35400;
  --light-orange: #f39c12;
  --black: #1a1a1a;
  --dark-gray: #2d2d2d;
  --light-gray: #f5f5f5;
  --white: #ffffff;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--black);
  background-color: var(--white);
}

/* Header */
.top-header {
  background-color: var(--black);
  color: var(--white);
  padding: 15px 0;
}

.top-header-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 30px;
}

.logo {
  height: 40px;
}

.contact-info {
  display: flex;
  gap: 30px;
  align-items: center;
  flex-wrap: wrap;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--white);
  text-decoration: none;
  transition: color 0.3s;
}

.contact-item:hover {
  color: #484850;
}

/* Hero Section */
.hero {
  position: relative;
  height: fit-content;
  background: #000000;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-image {
  width: 100%;
  opacity: 1;
}

.hero-image.hero-image-mobile {
  display: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--white);
  max-width: 800px;
  padding: 20px;
}

/* Navigation Tabs */
.nav-tabs {
  background-color: var(--dark-gray);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.nav-tabs-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}

.nav-tab {
  color: var(--white);
  text-decoration: none;
  padding: 20px 30px;
  display: inline-block;
  transition: all 0.3s;
  border-bottom: 3px solid transparent;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 14px;
}

.nav-tab:hover,
.nav-tab.active {
  background-color: #484850;
  border-bottom-color: #141418;
}

/* Sections */
.section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 20px;
}

.section-title {
  font-size: 36px;
  color: var(--black);
  margin-bottom: 30px;
  position: relative;
  padding-bottom: 15px;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, #484850, #141418);
}

/* About Section */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.about-text {
  font-size: 18px;
  line-height: 1.8;
  color: var(--dark-gray);
}

.about-highlights {
  background: linear-gradient(135deg, #484850, #141418);
  padding: 40px;
  border-radius: 10px;
  color: var(--white);
}

.highlight-item {
  margin-bottom: 20px;
  padding-left: 30px;
  position: relative;
}

.highlight-item::before {
  content: "✓";
  position: absolute;
  left: 0;
  font-size: 24px;
  font-weight: bold;
}

/* Program Section */
.program-preview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.program-card {
  background: var(--light-gray);
  padding: 30px;
  border-radius: 10px;
  border-left: 5px solid #484850;
  transition:
    transform 0.3s,
    box-shadow 0.3s;
}

.program-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.program-time {
  font-size: 20px;
  font-weight: bold;
  color: #484850;
  margin-bottom: 10px;
}

.program-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--black);
}

.btn-full-program {
  display: inline-block;
  margin-top: 30px;
  padding: 15px 40px;
  background: linear-gradient(90deg, #484850, #141418);
  color: var(--white);
  text-decoration: none;
  border-radius: 5px;
  font-weight: 600;
  transition:
    transform 0.3s,
    box-shadow 0.3s;
  border: none;
  cursor: pointer;
  font-size: 16px;
}

.btn-full-program:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 20px rgba(83, 68, 62, 0.4);
}

/* Location Section */
.location-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.location-details {
  background: var(--light-gray);
  padding: 40px;
  border-radius: 10px;
}

.location-item {
  margin-bottom: 25px;
  display: flex;
  align-items: start;
  gap: 15px;
}

.location-icon {
  font-size: 24px;
  color: #484850;
  min-width: 30px;
}

.location-info h3 {
  font-size: 18px;
  margin-bottom: 5px;
  color: var(--black);
}

.location-info p {
  color: var(--dark-gray);
  line-height: 1.6;
}

.map-placeholder {
  background: var(--light-gray);
  border-radius: 10px;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dark-gray);
  font-style: italic;
}

/* Registration Section */
.registration-form {
  margin: 0 auto;
  background: var(--light-gray);
  padding: 40px;
  border-radius: 10px;
  display: flex;
  flex-direction: column;
}

.form-group {
  margin-bottom: 25px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--black);
}

.consent-checkbox {
  display: flex !important;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 10px;
  font-weight: 400 !important;
  line-height: 1.5;
  cursor: pointer;
}

.consent-checkbox input {
  width: 20px !important;
  height: 20px;
  margin-top: 2px;
  padding: 0;
  flex-shrink: 0;
  cursor: pointer;
}

.consent-checkbox a {
  color: #d93025;
  text-decoration: none;
}

.consent-checkbox a:hover {
  text-decoration: underline;
}

.consent-note {
  margin-left: 34px;
  font-size: 14px;
  line-height: 1.6;
  color: #5f6368;
}

.form-group input:not([type="checkbox"]),
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 2px solid #ddd;
  border-radius: 5px;
  font-size: 16px;
  transition: border-color 0.3s;
}

.form-group input:not([type="checkbox"]):focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #484850;
}

.form-fields {
  order: 1;
}

.btn-register {
  order: 3;
  width: 100%;
  padding: 15px;
  background: linear-gradient(90deg, #484850, #141418);
  color: var(--white);
  border: none;
  border-radius: 5px;
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
  transition:
    transform 0.3s,
    box-shadow 0.3s;
}

.btn-register:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 20px rgba(255, 107, 53, 0.4);
}

.btn-register:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.registration-form > .form-group.form-group-full:last-of-type {
  order: 2;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  z-index: 2000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  animation: fadeIn 0.3s;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.modal-content {
  background-color: var(--white);
  margin: 5% auto;
  padding: 0;
  width: 90%;
  max-width: 900px;
  max-height: 80vh;
  border-radius: 10px;
  overflow: hidden;
  animation: slideIn 0.3s;
}

@keyframes slideIn {
  from {
    transform: translateY(-50px);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.modal-header {
  background: linear-gradient(90deg, #484850, #141418);
  color: var(--white);
  padding: 20px 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h2 {
  margin: 0;
}

.close {
  color: var(--white);
  font-size: 35px;
  font-weight: bold;
  cursor: pointer;
  line-height: 1;
  transition: transform 0.3s;
}

.close:hover {
  transform: scale(1.2);
}

.modal-body {
  padding: 30px;
  overflow-y: auto;
  max-height: calc(80vh - 80px);
}

.schedule-item {
  border-left: 4px solid #484850;
  padding: 20px;
  margin-bottom: 20px;
  background: var(--light-gray);
  border-radius: 5px;
}

.schedule-time {
  font-size: 18px;
  font-weight: bold;
  color: #484850;
  margin-bottom: 10px;
}

.schedule-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--black);
}

.schedule-speaker {
  color: var(--dark-gray);
  font-style: italic;
  margin-bottom: 10px;
}

.schedule-description {
  color: var(--dark-gray);
  line-height: 1.6;
}

/* Notification */
.notification {
  display: none;
  position: fixed;
  top: 20px;
  right: 20px;
  background: linear-gradient(135deg, #4caf50, #45a049);
  color: white;
  padding: 20px 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  z-index: 3000;
  animation: slideInRight 0.5s;
}

@keyframes slideInRight {
  from {
    transform: translateX(400px);
    opacity: 0;
  }

  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.notification.show {
  display: block;
}

.notification h3 {
  margin-bottom: 10px;
}

/* Footer */
footer {
  background-color: var(--black);
  color: var(--white);
  text-align: center;
  padding: 30px 20px;
  margin-top: 80px;
}

.form-fields {
  gap: 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.form-fields .form-group-full {
  grid-column: span 2;
}

/* Responsive */

@media (min-width: 1440px) {
  .hero-image {
    max-width: 1500px;
  }
}

@media (max-width: 768px) {
  .about-content,
  .location-content {
    grid-template-columns: 1fr;
  }

  .nav-tab {
    padding: 15px;
    font-size: 12px;
  }

  .section-title {
    font-size: 28px;
  }

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

  .modal-content {
    width: 95%;
    margin: 10% auto;
  }

  .hero-image {
    display: none;
  }

  p {
    font-size: 16px;
  }

  .hero-image.hero-image-mobile {
    display: inline-block;
  }

  .program-title,
  .program-time {
    font-size: 16px;
  }
}

@media (max-width: 575px) {
  .contact-info {
    gap: 15px;
    width: 100%;
    justify-content: space-between;
  }
}