:root {
  --primary-color: #4361ee;
  --secondary-color: #3f37c9;
  --accent-color: #4cc9f0;
  --success-color: #06d6a0;
  --warning-color: #ffd166;
  --danger-color: #ef476f;
  --light-color: #f8f9fa;
  --dark-color: #212529;
  --gray-color: #6c757d;
  --light-gray-color: #e9ecef;
  --border-radius: 10px;
  --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--dark-color);
  background-color: #f5f7fa;
  overflow-x: hidden;
}

.page-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}


header {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  margin: 20px;
  overflow: hidden;
  position: relative;
  opacity: 0;
  transform: translateY(-30px);
  animation: fadeInUp 0.8s ease forwards;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  position: relative;
  z-index: 2;
}

.logo {
  display: flex;
  align-items: center;
  font-size: 1.2rem;
  font-weight: 600;
}

.logo i {
  font-size: 1.8rem;
  margin-right: 10px;
  color: var(--accent-color);
}

header h1 {
  font-size: 1.5rem;
  font-weight: 600;
  text-align: center;
  flex-grow: 1;
}

.header-controls {
  display: flex;
  gap: 10px;
}

.control-btn {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  cursor: pointer;
  transition: var(--transition);
}

.control-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-3px);
}


.tema-info {
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 30px;
  margin: 0 20px 30px 20px;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease 0.2s forwards;
}

.tema-title {
  text-align: center;
  margin-bottom: 30px;
}

.tema-title h2 {
  color: var(--primary-color);
  margin-bottom: 10px;
  font-size: 1.8rem;
}

.subtitle {
  color: var(--gray-color);
  font-size: 0.9rem;
}

.tema-goals {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.goal-card {
  background: linear-gradient(135deg, #f8f9fa, #e9ecef);
  border-radius: var(--border-radius);
  padding: 20px;
  display: flex;
  align-items: flex-start;
  gap: 15px;
  transition: var(--transition);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s ease forwards;
}

.goal-card:nth-child(1) {
  animation-delay: 0.4s;
}
.goal-card:nth-child(2) {
  animation-delay: 0.6s;
}
.goal-card:nth-child(3) {
  animation-delay: 0.8s;
}

.goal-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.goal-icon {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.goal-content h3 {
  color: var(--primary-color);
  margin-bottom: 10px;
  font-size: 1.2rem;
}


.tabs-container {
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  overflow: hidden;
  margin: 0 20px 30px 20px;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease 1.0s forwards;
}

.tab-buttons {
  display: flex;
  overflow-x: auto;
  background: linear-gradient(to right, #f8f9fa, #e9ecef);
  border-bottom: 1px solid var(--light-gray-color);
}

.tab-btn {
  padding: 15px 20px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray-color);
  transition: var(--transition);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
  position: relative;
  overflow: hidden;
}

.tab-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transition: left 0.5s;
}

.tab-btn:hover::before {
  left: 100%;
}

.tab-btn i {
  font-size: 1.2rem;
}

.tab-btn:hover {
  color: var(--primary-color);
  background-color: rgba(67, 97, 238, 0.05);
  transform: translateY(-2px);
}

.tab-btn.active {
  color: var(--primary-color);
  border-bottom: 3px solid var(--primary-color);
  background-color: rgba(67, 97, 238, 0.1);
}

.tab-content {
  padding: 30px;
}

.tab-pane {
  display: none;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.tab-pane.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}


.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
  flex-wrap: wrap;
  gap: 15px;
}

.section-header h3 {
  color: var(--primary-color);
  font-size: 1.5rem;
}

.progress-indicator {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.progress-bar {
  width: 200px;
  height: 8px;
  background: var(--light-gray-color);
  border-radius: 4px;
  margin-bottom: 0.5rem;
  position: relative;
  overflow: hidden;
}

.progress-bar::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-radius: 4px;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.progress-indicator span {
  font-size: 0.9rem;
  color: var(--gray-color);
  font-weight: 500;
}


.content-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 30px;
}

@media (max-width: 992px) {
  .content-grid {
    grid-template-columns: 1fr;
  }
}


.info-card {
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  overflow: hidden;
  margin-bottom: 30px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s ease forwards;
}

.info-card:nth-child(2) {
  animation-delay: 0.1s;
}
.info-card:nth-child(3) {
  animation-delay: 0.2s;
}

.info-card-header {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  padding: 15px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.info-card-header i {
  font-size: 1.5rem;
}

.info-card-header h4 {
  font-size: 1.2rem;
  font-weight: 600;
}

.info-card-content {
  padding: 20px;
}

.info-card-content p {
  margin-bottom: 15px;
}

.info-card-content p:last-child {
  margin-bottom: 0;
}


.accordion {
  margin-bottom: 30px;
}

.accordion-item {
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  margin-bottom: 15px;
  overflow: hidden;
  opacity: 0;
  transform: translateX(-20px);
  animation: slideInLeft 0.6s ease forwards;
}

.accordion-item:nth-child(1) {
  animation-delay: 0.1s;
}
.accordion-item:nth-child(2) {
  animation-delay: 0.2s;
}
.accordion-item:nth-child(3) {
  animation-delay: 0.3s;
}
.accordion-item:nth-child(4) {
  animation-delay: 0.4s;
}

.accordion-header {
  padding: 15px 20px;
  background: linear-gradient(to right, #f8f9fa, #e9ecef);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--primary-color);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.accordion-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(67, 97, 238, 0.1), transparent);
  transition: left 0.5s;
}

.accordion-header:hover::before {
  left: 100%;
}

.accordion-header:hover {
  background: linear-gradient(to right, #e9ecef, #dee2e6);
  transform: translateX(5px);
}

.accordion-header i:first-child {
  font-size: 1.2rem;
  color: var(--primary-color);
}

.accordion-header span {
  flex-grow: 1;
}

.toggle-icon {
  font-size: 1rem;
  transition: transform 0.3s ease;
}

.accordion-item.active .toggle-icon {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s ease;
  padding: 0 20px;
}

.accordion-item.active .accordion-content {
  max-height: 2000px;
  padding: 20px;
}


.feature-list {
  list-style: none;
  margin-bottom: 20px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
  opacity: 0;
  transform: translateX(-10px);
  animation: slideInLeft 0.4s ease forwards;
}

.feature-list li:nth-child(1) {
  animation-delay: 0.1s;
}
.feature-list li:nth-child(2) {
  animation-delay: 0.2s;
}
.feature-list li:nth-child(3) {
  animation-delay: 0.3s;
}
.feature-list li:nth-child(4) {
  animation-delay: 0.4s;
}

.feature-list li i {
  color: var(--primary-color);
  font-size: 1rem;
  margin-top: 3px;
}


.info-note {
  background-color: rgba(67, 97, 238, 0.1);
  border-left: 4px solid var(--primary-color);
  padding: 15px;
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
  display: flex;
  align-items: flex-start;
  gap: 15px;
  margin: 20px 0;
  opacity: 0;
  transform: translateX(20px);
  animation: slideInRight 0.6s ease forwards;
}

.info-note i {
  color: var(--primary-color);
  font-size: 1.5rem;
  flex-shrink: 0;
}

.info-note.warning {
  background-color: rgba(255, 209, 102, 0.1);
  border-left-color: var(--warning-color);
}

.info-note.warning i {
  color: var(--warning-color);
}

.info-note.danger {
  background-color: rgba(239, 71, 111, 0.1);
  border-left-color: var(--danger-color);
}

.info-note.danger i {
  color: var(--danger-color);
}


.visual-content {
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 20px;
  margin-bottom: 30px;
  opacity: 0;
  transform: scale(0.95);
  animation: scaleIn 0.6s ease forwards;
}

.visual-content h4 {
  color: var(--primary-color);
  margin-bottom: 20px;
  text-align: center;
  font-size: 1.2rem;
}


.component-viewer {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.component-image {
  text-align: center;
  position: relative;
  overflow: hidden;
  border-radius: 12px;
}

.component-image img {
  max-width: 100%;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.component-selector {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: center;
}

.component-btn {
  padding: 0.8rem 1.5rem;
  background: rgba(233, 236, 239, 0.8);
  border: none;
  border-radius: 25px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 0.9rem;
  font-weight: 500;
}

.component-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.component-btn.active {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(67, 97, 238, 0.3);
}

.component-description {
  background: rgba(255, 255, 255, 0.9);
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.component-description h5 {
  color: var(--primary-color);
  margin-bottom: 0.8rem;
  font-size: 1.2rem;
}


.step-viewer {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.step-image {
  text-align: center;
}

.step-image img {
  max-width: 100%;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.step-btn {
  padding: 0.8rem 1.5rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  border: none;
  border-radius: 25px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
}

.step-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(67, 97, 238, 0.3);
}

.step-btn:disabled {
  background: var(--gray-color);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.step-counter {
  font-size: 0.9rem;
  color: var(--gray-color);
  font-weight: 500;
}

.step-description {
  background: rgba(255, 255, 255, 0.9);
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.step-description h5 {
  color: var(--primary-color);
  margin-bottom: 0.8rem;
  font-size: 1.2rem;
}


.bios-simulator {
  margin-bottom: 2rem;
  opacity: 0;
  transform: scale(0.95);
  animation: scaleIn 0.6s ease forwards;
}

.bios-screen {
  background-color: #000;
  color: #fff;
  border-radius: 8px;
  padding: 1rem;
  font-family: "Courier New", monospace;
  box-shadow: 0 0 20px rgba(0, 0, 255, 0.2);
  border: 1px solid var(--primary-color);
  margin-bottom: 1rem;
}

.bios-header {
  display: flex;
  justify-content: space-between;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--primary-color);
  margin-bottom: 1rem;
}

.bios-menu {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--primary-color);
  padding-bottom: 0.5rem;
}

.bios-menu-item {
  cursor: pointer;
  padding: 0.3rem 0.8rem;
  transition: all 0.3s;
}

.bios-menu-item:hover {
  background-color: var(--primary-color);
}

.bios-menu-item.active {
  background-color: var(--primary-color);
}

.bios-content {
  margin-bottom: 1rem;
}

.bios-setting {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.bios-footer {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--primary-color);
  padding-top: 0.5rem;
  font-size: 0.8rem;
}

.bios-controls {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.bios-btn {
  padding: 0.8rem 1.5rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  border: none;
  border-radius: 25px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-weight: 500;
}

.bios-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(67, 97, 238, 0.3);
}


.steps-container {
  margin: 20px 0;
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px dashed var(--light-gray-color);
  opacity: 0;
  transform: translateX(-20px);
  animation: slideInLeft 0.5s ease forwards;
}

.step-item:nth-child(1) {
  animation-delay: 0.1s;
}
.step-item:nth-child(2) {
  animation-delay: 0.2s;
}
.step-item:nth-child(3) {
  animation-delay: 0.3s;
}
.step-item:nth-child(4) {
  animation-delay: 0.4s;
}
.step-item:nth-child(5) {
  animation-delay: 0.5s;
}

.step-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 0;
}

.step-number {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  flex-shrink: 0;
}

.step-content h5 {
  color: var(--primary-color);
  margin-bottom: 10px;
  font-size: 1.1rem;
}


.table-container {
  width: 100%;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.table-row {
  display: flex;
  border-bottom: 1px solid #e9ecef;
}

.table-row:last-child {
  border-bottom: none;
}

.table-row.header {
  background-color: #f8f9fa;
  font-weight: 500;
}

.table-cell {
  padding: 0.8rem;
  flex: 1;
}


.navigation-controls {
  display: flex;
  justify-content: space-between;
  margin: 20px;
  padding: 0 1rem;
}

.nav-btn {
  padding: 0.8rem 1.5rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  border: none;
  border-radius: 25px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
}

.nav-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(67, 97, 238, 0.3);
}


footer {
  background-color: var(--dark-color);
  color: white;
  padding: 1.5rem 0;
  margin-top: auto;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  color: white;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: color 0.3s;
}

.footer-links a:hover {
  color: var(--primary-color);
}


@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: 15px;
  }

  .header-controls {
    margin-top: 15px;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .progress-indicator {
    width: 100%;
  }

  .tab-buttons {
    flex-wrap: wrap;
  }

  .tab-btn {
    flex: 1 0 calc(50% - 1rem);
    justify-content: center;
  }

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

  .footer-links {
    flex-direction: column;
    gap: 0.8rem;
  }

  .navigation-controls {
    flex-direction: column;
    gap: 1rem;
  }

  .nav-btn {
    width: 100%;
    justify-content: center;
  }
}


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

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

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


.responsive-img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
}

.image-container {
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: scale(0.95);
  animation: scaleIn 0.6s ease forwards;
}

.image-caption {
  text-align: center;
  font-size: 0.9rem;
  color: var(--gray-color);
  margin-top: 0.8rem;
  font-style: italic;
}


@media print {
  body {
    background-color: white;
  }

  .page-container {
    padding: 0;
  }

  header,
  .tab-buttons,
  .control-btn,
  .navigation-controls {
    display: none !important;
  }

  .tabs-container,
  .info-card,
  .accordion-item,
  .visual-content {
    box-shadow: none;
    border: 1px solid #ddd;
  }

  .tab-pane {
    display: block !important;
    opacity: 1 !important;
    transform: none !important;
  }

  .accordion-content {
    max-height: none !important;
    padding: 20px !important;
  }
}