/* ==================== CERTIFICATE PAGE STYLES ==================== */

/* Navigation */
.cert-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  padding: 0 30px;
}

.cert-nav-container {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.back-link {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #2563eb;
  text-decoration: none;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.back-link:hover {
  background: rgba(37, 99, 235, 0.1);
}

.back-link i {
  font-size: 0.9rem;
}

/* Page Container */
.cert-page-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 100px 30px 50px;
  min-height: 100vh;
}

/* Header */
.cert-page-header {
  text-align: center;
  margin-bottom: 50px;
}

.cert-page-icon {
  width: 80px;
  height: 80px;
  border-radius: 20px;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 25px;
}

.cert-page-icon i {
  font-size: 2.5rem;
  color: white;
}

.cert-page-header h1 {
  font-size: 2.5rem;
  color: #1a1a1a;
  margin-bottom: 10px;
  font-weight: 700;
}

.cert-page-subtitle {
  color: #64748b;
  font-size: 1.1rem;
}

/* Content */
.cert-page-content {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

/* Sections */
.cert-section {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 16px;
  padding: 30px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(226, 232, 240, 0.8);
}

.cert-section h2 {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #1a1a1a;
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 25px;
  padding-bottom: 15px;
  border-bottom: 2px solid rgba(37, 99, 235, 0.2);
}

.cert-section h2 i {
  color: #2563eb;
  font-size: 1.3rem;
}

/* Certificate List */
.cert-list {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

/* Certificate Item */
.cert-item {
  padding: 20px;
  background: rgba(248, 250, 252, 0.6);
  border-radius: 12px;
  border: 1px solid rgba(226, 232, 240, 0.6);
  transition: all 0.3s ease;
}

.cert-item:hover {
  background: rgba(248, 250, 252, 0.95);
  border-color: rgba(37, 99, 235, 0.3);
  transform: translateX(4px);
}

.cert-item.professional {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(29, 78, 216, 0.05));
  border-left: 4px solid #2563eb;
}

.cert-item.specialization {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.05), rgba(5, 150, 105, 0.05));
  border-left: 4px solid #10b981;
}

.cert-item-header {
  display: flex;
  align-items: center;
  gap: 15px;
}

.cert-logo {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  object-fit: contain;
  background: white;
  padding: 4px;
}

.cert-item-info {
  flex: 1;
  min-width: 0;
}

.cert-item-info h3 {
  color: #1a1a1a;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
  line-height: 1.3;
}

.cert-issuer {
  color: #64748b;
  font-size: 0.9rem;
  font-weight: 500;
}

.cert-date {
  color: #64748b;
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  padding: 6px 12px;
  background: rgba(226, 232, 240, 0.5);
  border-radius: 6px;
}

.cert-credential {
  color: #94a3b8;
  font-size: 0.8rem;
  margin-top: 10px;
  font-family: monospace;
}

/* Footer */
.cert-page-footer {
  text-align: center;
  margin-top: 50px;
  padding-top: 30px;
  border-top: 1px solid rgba(226, 232, 240, 0.8);
}

.cert-page-footer a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #2563eb;
  text-decoration: none;
  font-weight: 500;
  padding: 14px 28px;
  border-radius: 12px;
  background: rgba(37, 99, 235, 0.1);
  transition: all 0.3s ease;
}

.cert-page-footer a:hover {
  background: rgba(37, 99, 235, 0.2);
  transform: translateY(-2px);
}

.cert-page-footer i {
  font-size: 1.2rem;
}

/* ==================== DARK MODE ==================== */
body.dark-mode .cert-nav {
  background: rgba(15, 23, 42, 0.95);
  border-bottom-color: rgba(51, 65, 85, 0.5);
}

body.dark-mode .back-link {
  color: #60a5fa;
}

body.dark-mode .back-link:hover {
  background: rgba(96, 165, 250, 0.1);
}

body.dark-mode .cert-page-header h1 {
  color: #f1f5f9;
}

body.dark-mode .cert-page-subtitle {
  color: #94a3b8;
}

body.dark-mode .cert-section {
  background: rgba(30, 41, 59, 0.8);
  border-color: rgba(51, 65, 85, 0.5);
}

body.dark-mode .cert-section h2 {
  color: #fcd34d;
  border-bottom-color: rgba(252, 211, 77, 0.2);
}

body.dark-mode .cert-section h2 i {
  color: #fcd34d;
}

body.dark-mode .cert-item {
  background: rgba(51, 65, 85, 0.3);
  border-color: rgba(71, 85, 105, 0.5);
}

body.dark-mode .cert-item:hover {
  background: rgba(51, 65, 85, 0.5);
  border-color: rgba(96, 165, 250, 0.5);
}

body.dark-mode .cert-item.professional {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(37, 99, 235, 0.1));
  border-left-color: #3b82f6;
}

body.dark-mode .cert-item.specialization {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(5, 150, 105, 0.1));
  border-left-color: #10b981;
}

body.dark-mode .cert-item-info h3 {
  color: #f1f5f9;
}

body.dark-mode .cert-issuer {
  color: #94a3b8;
}

body.dark-mode .cert-date {
  color: #94a3b8;
  background: rgba(71, 85, 105, 0.5);
}

body.dark-mode .cert-credential {
  color: #64748b;
}

body.dark-mode .cert-page-footer {
  border-top-color: rgba(71, 85, 105, 0.5);
}

body.dark-mode .cert-page-footer a {
  color: #60a5fa;
  background: rgba(96, 165, 250, 0.1);
}

body.dark-mode .cert-page-footer a:hover {
  background: rgba(96, 165, 250, 0.2);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
  .cert-nav {
    padding: 0 15px;
  }

  .cert-page-container {
    padding: 80px 15px 30px;
  }

  .cert-page-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
  }

  .cert-page-icon i {
    font-size: 1.8rem;
  }

  .cert-page-header h1 {
    font-size: 1.8rem;
  }

  .cert-page-subtitle {
    font-size: 1rem;
  }

  .cert-section {
    padding: 20px;
    border-radius: 12px;
  }

  .cert-section h2 {
    font-size: 1.25rem;
    gap: 10px;
  }

  .cert-item {
    padding: 15px;
  }

  .cert-item-header {
    flex-wrap: wrap;
    gap: 10px;
  }

  .cert-logo {
    width: 35px;
    height: 35px;
  }

  .cert-item-info h3 {
    font-size: 0.95rem;
  }

  .cert-date {
    font-size: 0.8rem;
    padding: 4px 10px;
  }
}

@media (max-width: 480px) {
  .back-link span {
    display: none;
  }

  .cert-page-header h1 {
    font-size: 1.5rem;
  }

  .cert-section h2 {
    font-size: 1.1rem;
  }

  .cert-item-info h3 {
    font-size: 0.9rem;
  }

  .cert-issuer {
    font-size: 0.85rem;
  }

  .cert-credential {
    font-size: 0.75rem;
  }
}