/* Base Styles */
:root {
  --sk-primary: #6c5ce7;
  --sk-secondary: #a29bfe;
  --sk-accent: #00cec9;
  --sk-highlight: #ffeaa7;
  --sk-text: #2d3436;
  --sk-bg: #f5f6fa;
  --sk-white: #ffffff;
  --sk-dark: #1a1a2e;
}

body {
  background-image: url("./img/background.png");
  background-color: var(--sk-bg);
  color: var(--sk-text);
  font-family: "Comic Neue", cursive;
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

/* Header */
.sk-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 5%;
  background: var(--sk-white);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.sk-logo-title {
  font-family: "Rubik Bubbles", cursive;
  font-size: 2.5rem;
  color: var(--sk-primary);
  margin: 0;
  letter-spacing: 1px;
}

.sk-logo-highlight {
  color: var(--sk-accent);
}

.sk-tagline {
  margin: 0;
  font-size: 1rem;
  color: var(--sk-text);
  opacity: 0.8;
}

.sk-external-btn {
  width: 45px;
  height: auto;
  display: block;
  cursor: pointer;
}

.sk-external-link {
  display: inline-block;
  transition: all 0.2s ease;
  border: 2px solid #000;
  border-radius: 4px;
  padding: 5px;
  background: var(--sk-white);
  box-shadow: 2px 2px 0px rgba(0, 0, 0, 0.8);
  text-decoration: none;
}

.sk-external-link:hover {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0px rgba(0, 0, 0, 0.8);
  background: #f0f0f0;
}

.sk-connect-btn {
  background: var(--sk-white);
  border: 3px solid var(--sk-primary);
  color: var(--sk-primary);
  padding: 0.8rem 1.5rem;
  border-radius: 50px;
  font-family: "Rubik Bubbles", cursive;
  font-size: 1rem;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 5px 5px 0px var(--sk-primary);
}

.sk-connect-btn:hover {
  transform: translate(3px, 3px);
  box-shadow: 2px 2px 0px var(--sk-primary);
}

.sk-btn-dots {
  display: flex;
  gap: 5px;
}

.sk-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--sk-accent);
}

/* Why Know Section */
.sk-why-section {
  padding: 3rem 5%;
  background: linear-gradient(145deg, #f5f6fa, #e0e0e0);
}

.sk-section-title {
  text-align: center;
  font-family: "Rubik Bubbles", cursive;
  font-size: 2rem;
  margin-bottom: 2rem;
  color: yellowgreen;
}

.sk-info-cards {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.sk-info-card {
  flex: 1;
  min-width: 300px;
  background: var(--sk-white);
  border-radius: 15px;
  padding: 1.5rem;
  border: 3px solid var(--sk-accent);
  transition: all 0.3s ease;
  box-shadow: 5px 5px 0px var(--sk-accent);
}

.sk-info-card:hover {
  transform: translateY(-5px);
  box-shadow: 8px 8px 0px var(--sk-accent);
}

.sk-card-icon {
  font-size: 2rem;
  color: var(--sk-primary);
  margin-bottom: 1rem;
}

.sk-card-title {
  font-family: "Rubik Bubbles", cursive;
  color: var(--sk-primary);
  margin-bottom: 0.8rem;
}

.sk-card-text {
  color: var(--sk-text);
  font-size: 0.95rem;
  opacity: 0.9;
}

/* Courses Section */
.sk-courses-section {
  padding: 3rem 5%;
}

.sk-course-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 2rem;
}

.sk-filter-btn {
  padding: 0.6rem 1.2rem;
  border-radius: 50px;
  border: 2px solid var(--sk-primary);
  background: var(--sk-white);
  color: var(--sk-primary);
  font-family: "Rubik Bubbles", cursive;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.sk-filter-btn.active,
.sk-filter-btn:hover {
  background: var(--sk-primary);
  color: var(--sk-white);
}

.sk-course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.sk-course-card {
  background: var(--sk-white);
  border-radius: 15px;
  overflow: hidden;
  border: 3px solid var(--sk-primary);
  transition: all 0.3s ease;
  box-shadow: 5px 5px 0px var(--sk-primary);
}

.sk-course-card:hover {
  transform: translateY(-5px);
  box-shadow: 8px 8px 0px var(--sk-primary);
}

.sk-course-preview {
  height: 160px;
  background-size: cover;
  background-position: center;
  position: relative;
}

.sk-course-preview::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.3));
}

.sk-course-info {
  padding: 1.2rem;
}

.sk-course-title {
  font-family: "Rubik Bubbles", cursive;
  font-size: 1rem;
  margin-bottom: 0.8rem;
  color: var(--sk-primary);
}

.sk-course-price {
  display: flex;
  align-items: center;
  margin-bottom: 0.8rem;
  color: var(--sk-primary);
  font-family: "Rubik Bubbles", cursive;
  font-size: 0.9rem;
}

.sk-course-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.sk-category {
  font-size: 0.7rem;
  padding: 0.3rem 0.6rem;
  border-radius: 50px;
  background: rgba(108, 92, 231, 0.1);
  color: var(--sk-primary);
  border: 1px solid var(--sk-primary);
}

/* Progress Board */
.sk-progress-section {
  padding: 2rem 5%;
}

.sk-terminal {
  background: var(--sk-white);
  border: 3px solid var(--sk-accent);
  border-radius: 15px;
  padding: 2rem;
  box-shadow: 8px 8px 0px var(--sk-accent);
}

.sk-terminal-title {
  color: var(--sk-primary);
  font-family: "Rubik Bubbles", cursive;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  text-align: center;
}

.sk-progress-container {
  width: 100%;
  height: 25px;
  background-color: #f0f0f0;
  border-radius: 50px;
  margin: 1.5rem 0;
  overflow: hidden;
  border: 2px solid var(--sk-primary);
}

.sk-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--sk-primary), var(--sk-secondary));
  transition: width 0.5s ease;
}

.sk-access-level {
  text-align: center;
  margin: 1rem 0;
  font-size: 1.2rem;
  color: var(--sk-primary);
}

.sk-level-container {
  display: flex;
  justify-content: space-between;
  margin-top: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.sk-level {
  flex: 1;
  min-width: 200px;
  text-align: center;
  padding: 1rem;
  border-radius: 10px;
  transition: all 0.3s ease;
  background: var(--sk-white);
  border: 2px dashed var(--sk-primary);
}

.sk-level.unlocked {
  background: rgba(108, 92, 231, 0.1);
  border: 2px solid var(--sk-primary);
}

.sk-level.locked {
  opacity: 0.6;
  background: #f9f9f9;
}

.sk-level-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  color: var(--sk-primary);
}

/* Footer */
.sk-footer {
  background: var(--sk-primary);
  color: var(--sk-white);
  text-align: center;
  padding: 2rem 5%;
  margin-top: 3rem;
}

.sk-footer-text {
  margin: 0;
}

.sk-social-links {
  margin-top: 1rem;
}

.sk-social-link {
  color: var(--sk-white);
  font-size: 1.5rem;
  margin: 0 0.5rem;
  transition: all 0.3s ease;
}

.sk-social-link:hover {
  color: var(--sk-highlight);
  transform: translateY(-3px);
}

/* Popups */
.sk-wallet-popup,
.sk-unlock-popup {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.7);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  backdrop-filter: blur(5px);
}

.sk-wallet-modal,
.sk-unlock-modal {
  background: linear-gradient(135deg, #1e1e2f 0%, #2d2d42 100%);
  border-radius: 16px;
  padding: 30px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.1);
  animation: skModalFadeIn 0.3s ease-out;
}

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

.sk-modal-close {
  position: absolute;
  top: 15px;
  right: 15px;
  background: none;
  border: none;
  color: var(--sk-accent);
  font-size: 1.5rem;
  cursor: pointer;
  transition: transform 0.2s;
}

.sk-modal-close:hover {
  transform: rotate(90deg);
}

.sk-modal-title {
  color: var(--sk-accent);
  text-align: center;
  margin-bottom: 1.5rem;
  font-family: "Rubik Bubbles", cursive;
}

.sk-wallet-options {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.sk-wallet-option {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--sk-accent);
  border-radius: 10px;
  color: var(--sk-white);
  cursor: pointer;
  transition: all 0.3s ease;
}

.sk-wallet-option:hover {
  background: rgba(0, 206, 201, 0.2);
  transform: translateY(-3px);
}

.sk-wallet-help {
  text-align: center;
  color: var(--sk-secondary);
  margin-top: 1.5rem;
  font-size: 0.9rem;
}

.sk-wallet-link {
  color: var(--sk-accent);
  text-decoration: none;
}

/* Unlock Popup Specific */
.sk-unlock-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 20px;
}

.sk-lock-icon {
  font-size: 40px;
  margin-bottom: 15px;
}

.sk-unlock-title {
  color: var(--sk-white);
  text-align: center;
  font-family: "Rubik Bubbles", cursive;
  font-size: 22px;
  font-weight: 600;
  margin: 0;
}

.sk-unlock-btn {
  width: 100%;
  padding: 0.8rem;
  border: none;
  border-radius: 50px;
  background: var(--primary);
  color: black;
  font-family: "Rubik Bubbles", cursive;
  font-size: 1.4rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.sk-unlock-body {
  margin-bottom: 25px;
}

.sk-unlock-text {
  color: #ddd;
  text-align: center;
  font-size: 16px;
  line-height: 1.5;
}

.sk-unlock-footer {
  display: flex;
  justify-content: center;
}

.sk-unlock-action-btn {
  background: var(--sk-primary);
  color: var(--sk-white);
  border: none;
  border-radius: 8px;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
  width: 100%;
}

.sk-unlock-action-btn:hover {
  background: #3a30b0;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(78, 68, 206, 0.4);
}

/* Responsive */
@media (max-width: 768px) {
  .sk-header {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }

  .sk-info-cards {
    flex-direction: column;
  }

  .sk-level-container {
    flex-direction: column;
  }

  .sk-course-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }

  .sk-logo-title {
    font-size: 2rem;
  }

  .sk-connect-btn {
    font-size: 0.9rem;
  }
}