/* ============================================
   VARIÁVEIS DE COR - Alterar aqui altera todo site
   ============================================ */
:root {
  --bs-body-bg: #0d1117;
  --bs-body-color: #e6edf3;
  --bs-border-color: #30363d;
  --bs-link-color: #79c0ff;
  --bs-link-hover-color: #89d6ff;
  --bs-form-control-bg: #0d1117;
  --bs-form-control-border-color: #30363d;
  --bs-form-control-color: #e6edf3;
  --bs-btn-hover-bg: #1f6feb;
  --bs-btn-active-bg: #1a5be0;
  
  /* Cores customizadas */
  --primary: #0969da;
  --secondary: #6e7681;
  --success: #238636;
  --danger: #da3633;
  --warning: #9e6a03;
  --info: #0969da;
  --light: #21262d;
  --dark: #010409;
  --accent: #79c0ff;
}

/* ============================================
   BASE & TYPOGRAPHY
   ============================================ */
html,
body {
  height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  background-color: var(--bs-body-bg);
  color: var(--bs-body-color);
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
  padding: 2rem 0;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  color: #e6edf3;
}

a {
  text-decoration: none;
  color: var(--bs-link-color);
  transition: color 0.2s;
}

a:hover {
  color: var(--bs-link-hover-color);
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  border-bottom: 1px solid var(--bs-border-color);
  background-color: #010409 !important;
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--accent) !important;
}

.nav-link {
  margin: 0 0.5rem;
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--accent) !important;
}

.nav-link.active {
  color: var(--accent) !important;
  border-bottom: 2px solid var(--accent);
}

/* ============================================
   FOOTER
   ============================================ */
footer {
  border-top: 1px solid var(--bs-border-color);
  background-color: #010409;
  margin-top: auto;
  padding: 2rem 0;
  color: var(--secondary);
}

footer a {
  color: var(--accent);
}

footer a:hover {
  color: var(--bs-link-hover-color);
}

/* ============================================
   CARDS & CONTAINERS
   ============================================ */
.card {
  background-color: var(--light) !important;
  border-color: var(--bs-border-color) !important;
  color: var(--bs-body-color) !important;
}

.card-body {
  padding: 1.5rem;
}

.card-header {
  background-color: #161b22 !important;
  border-color: var(--bs-border-color) !important;
  font-weight: 600;
}

.card-footer {
  background-color: #161b22 !important;
  border-color: var(--bs-border-color) !important;
}

.card-title {
  font-weight: 600;
  color: #e6edf3;
}

.card-text {
  color: var(--secondary);
  line-height: 1.6;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  font-weight: 500;
  border-radius: 0.375rem;
  transition: all 0.2s;
}

.btn-primary {
  background-color: var(--primary) !important;
  border-color: var(--primary) !important;
}

.btn-primary:hover {
  background-color: var(--bs-btn-hover-bg) !important;
  border-color: var(--bs-btn-hover-bg) !important;
}

.btn-secondary {
  background-color: var(--secondary) !important;
  border-color: var(--secondary) !important;
}

.btn-outline-secondary {
  color: var(--secondary);
  border-color: var(--secondary);
}

.btn-outline-secondary:hover {
  background-color: var(--secondary) !important;
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.875rem;
}

/* ============================================
   FORMS
   ============================================ */
.form-control,
.form-select,
.form-check-input {
  background-color: var(--bs-form-control-bg) !important;
  border-color: var(--bs-form-control-border-color) !important;
  color: var(--bs-form-control-color) !important;
}

.form-control:focus,
.form-select:focus {
  background-color: var(--bs-form-control-bg) !important;
  border-color: var(--primary) !important;
  color: var(--bs-form-control-color) !important;
  box-shadow: 0 0 0 0.25rem rgba(9, 105, 218, 0.25) !important;
}

.form-check-input:checked {
  background-color: var(--primary) !important;
  border-color: var(--primary) !important;
}

.form-label {
  color: #e6edf3;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

/* ============================================
   PAGINATION
   ============================================ */
.pagination {
  margin-top: 2rem;
}

.page-link {
  background-color: var(--light) !important;
  border-color: var(--bs-border-color) !important;
  color: var(--accent) !important;
}

.page-link:hover {
  background-color: #262c36 !important;
  border-color: var(--bs-border-color) !important;
  color: var(--bs-link-hover-color) !important;
}

.page-link.active {
  background-color: var(--primary) !important;
  border-color: var(--primary) !important;
}

.page-item.disabled .page-link {
  background-color: transparent !important;
  color: var(--secondary) !important;
  border-color: var(--bs-border-color) !important;
}

/* ============================================
   BADGES
   ============================================ */
.badge {
  padding: 0.35em 0.65em;
  font-weight: 500;
  font-size: 0.85em;
  border-radius: 0.25rem;
}

.badge-primary {
  background-color: var(--primary) !important;
}

.badge-secondary {
  background-color: var(--secondary) !important;
}

.badge-success {
  background-color: var(--success) !important;
}

/* ============================================
   ALERT
   ============================================ */
.alert {
  border-radius: 0.375rem;
  border: 1px solid;
}

.alert-info {
  background-color: rgba(9, 105, 218, 0.1) !important;
  border-color: var(--primary) !important;
  color: var(--accent) !important;
}

.alert-danger {
  background-color: rgba(218, 54, 51, 0.1) !important;
  border-color: var(--danger) !important;
  color: #f85149 !important;
}

.alert-success {
  background-color: rgba(35, 134, 54, 0.1) !important;
  border-color: var(--success) !important;
  color: #3fb950 !important;
}

/* ============================================
   CODE & MARKDOWN
   ============================================ */
code {
  background-color: #161b22;
  color: #79c0ff;
  padding: 0.2rem 0.4rem;
  border-radius: 0.25rem;
  font-size: 0.875em;
}

pre {
  background-color: #0d1117;
  border: 1px solid var(--bs-border-color);
  border-radius: 0.375rem;
  padding: 1rem;
  overflow-x: auto;
  margin: 1rem 0;
}

pre code {
  background-color: transparent;
  color: #e6edf3;
  padding: 0;
}

blockquote {
  border-left: 3px solid var(--primary);
  margin: 1rem 0;
  padding-left: 1rem;
  color: var(--secondary);
}

/* ============================================
   HOME PAGE
   ============================================ */
.hero-section {
  text-align: center;
  padding: 4rem 2rem;
}

.hero-section h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--accent), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-section p {
  font-size: 1.25rem;
  color: var(--secondary);
  margin-bottom: 2rem;
}

.carousel-slide {
  position: relative;
  height: 400px;
  border-radius: 0.5rem;
  overflow: hidden;
  background: linear-gradient(135deg, #161b22, #0d1117);
}

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.carousel-caption {
  background: rgba(0, 0, 0, 0.8);
  padding: 1.5rem;
  border-radius: 0.5rem;
  bottom: 0;
  left: 0;
  right: 0;
}

.carousel-caption h5 {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

/* ============================================
   BLOG
   ============================================ */
.post-card {
  transition: all 0.3s ease;
  border: 1px solid var(--bs-border-color);
  border-radius: 0.5rem;
  overflow: hidden;
  height: 200px;
}

.post-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(9, 105, 218, 0.15);
}

.post-card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  background: linear-gradient(135deg, #161b22, #0d1117);
}

.post-card-body {
  padding: 1.5rem;
}

.post-card-title {
  font-weight: 600;
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: #e6edf3;
  transition: color 0.2s;
}

.post-card a:hover .post-card-title {
  color: var(--accent);
}

.post-card-meta {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  color: var(--secondary);
  flex-wrap: wrap;
}

.post-card-meta span {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.post-card-excerpt {
  color: var(--secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.post-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background-color: rgba(9, 105, 218, 0.1);
  border: 1px solid rgba(9, 105, 218, 0.3);
  border-radius: 1rem;
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 500;
}

.post-tag:hover {
  background-color: rgba(9, 105, 218, 0.2);
}

/* ============================================
   FILES PAGE
   ============================================ */
.file-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.file-list.grid-view {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1rem;
}

.file-item {
  display: flex;
  align-items: center;
  padding: 0.75rem;
  border: 1px solid var(--bs-border-color);
  border-radius: 0.375rem;
  transition: all 0.2s;
  cursor: pointer;
}

.file-list.grid-view .file-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1rem;
  min-height: 200px;
}

.file-item:hover {
  background-color: #161b22;
  border-color: var(--accent);
}

.file-item-checkbox {
  margin-right: 0.75rem;
}

.file-list.grid-view .file-item-checkbox {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  margin: 0;
}

.file-item-thumbnail {
  width: 120px;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.5rem;
  border-radius: 0.375rem;
  overflow: hidden;
  background-color: #010409;
}

.file-list.grid-view .file-item-thumbnail {
  width: 100%;
  height: 120px;
  margin-bottom: 0.5rem;
}

.file-item-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.file-item-icon {
  margin-right: 0.75rem;
  font-size: 1.25rem;
  color: var(--accent);
  min-width: 1.5rem;
  text-align: center;
}

.file-list.grid-view .file-item-icon {
  font-size: 2rem;
  margin-right: 0;
  margin-bottom: 0.5rem;
}

.file-item-info {
  flex: 1;
}

.file-list.grid-view .file-item-info {
  width: 100%;
  flex: none;
}

.file-item-name {
  font-weight: 500;
  color: #e6edf3;
  word-break: break-word;
}

.file-list.grid-view .file-item-name {
  font-size: 0.875rem;
}

.file-item-size {
  font-size: 0.875rem;
  color: var(--secondary);
}

.file-item-preview {
  max-width: 150px;
  max-height: 100px;
  border-radius: 0.25rem;
  object-fit: cover;
  margin-left: 1rem;
}

.file-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.file-grid-item {
  border: 1px solid var(--bs-border-color);
  border-radius: 0.375rem;
  overflow: hidden;
  transition: all 0.2s;
  cursor: pointer;
}

.file-grid-item:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(9, 105, 218, 0.15);
}

.file-grid-item input[type='checkbox'] {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
}

.file-grid-preview {
  position: relative;
  width: 100%;
  height: 150px;
  background: linear-gradient(135deg, #161b22, #0d1117);
  display: flex;
  align-items: center;
  justify-content: center;
}

.file-grid-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.file-grid-name {
  padding: 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ============================================
   ADMIN PANEL
   ============================================ */
.admin-sidebar {
  border-right: 1px solid var(--bs-border-color);
  min-height: 100vh;
  background-color: #010409;
  padding: 1.5rem 0;
}

.admin-sidebar .nav-link {
  color: var(--secondary) !important;
  padding: 0.75rem 1.5rem;
  margin: 0;
  border-radius: 0;
  border-left: 3px solid transparent;
  transition: all 0.2s;
}

.admin-sidebar .nav-link:hover,
.admin-sidebar .nav-link.active {
  background-color: #161b22;
  color: var(--accent) !important;
  border-left-color: var(--primary);
}

.tab-content {
  padding: 2rem;
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
}

.form-section {
  background-color: var(--light);
  padding: 1.5rem;
  border-radius: 0.5rem;
  border: 1px solid var(--bs-border-color);
  margin-bottom: 2rem;
}

.form-section-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--bs-border-color);
}

.list-group-item {
  background-color: var(--light) !important;
  border-color: var(--bs-border-color) !important;
  color: var(--bs-body-color) !important;
  padding: 1rem;
}

.list-group-item:hover {
  background-color: #161b22 !important;
}

.list-group-item.active {
  background-color: var(--primary) !important;
  border-color: var(--primary) !important;
}

/* ============================================
   MARKDOWN EDITOR
   ============================================ */
.markdown-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1rem;
}

.markdown-editor {
  display: flex;
  flex-direction: column;
}

.markdown-editor textarea {
  flex: 1;
  font-family: 'Courier New', monospace;
  font-size: 0.875rem;
  line-height: 1.5;
  resize: none;
  border-radius: 0.375rem;
}

.markdown-preview {
  border: 1px solid var(--bs-border-color);
  border-radius: 0.375rem;
  padding: 1rem;
  background-color: #0d1117;
  overflow-y: auto;
}

.markdown-preview h1,
.markdown-preview h2,
.markdown-preview h3,
.markdown-preview h4,
.markdown-preview h5,
.markdown-preview h6 {
  margin-top: 1.5rem;
  margin-bottom: 1rem;
}

.markdown-preview p {
  margin-bottom: 1rem;
}

.markdown-preview ul,
.markdown-preview ol {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
}

.markdown-preview li {
  margin-bottom: 0.5rem;
}

/* ============================================
   UTILITIES
   ============================================ */
.text-muted {
  color: var(--secondary) !important;
}

.text-secondary {
  color: var(--secondary) !important;
}

.text-accent {
  color: var(--accent) !important;
}

.bg-dark {
  background-color: var(--dark) !important;
}

.bg-light {
  background-color: var(--light) !important;
}

.border-secondary {
  border-color: var(--bs-border-color) !important;
}

.shadow-sm {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3) !important;
}

.shadow {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3) !important;
}

.opacity-75 {
  opacity: 0.75;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  .hero-section h1 {
    font-size: 2rem;
  }

  .carousel-slide {
    height: 250px;
  }

  .markdown-container {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    border-right: none;
    border-bottom: 1px solid var(--bs-border-color);
    padding: 1rem;
  }

  .admin-sidebar .nav-link {
    display: inline-block;
    margin-right: 1rem;
    border-left: none;
    border-bottom: 2px solid transparent;
    padding: 0.5rem 0.75rem;
  }

  .admin-sidebar .nav-link.active {
    border-left: none;
    border-bottom-color: var(--primary);
  }

  .file-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
}

@media (max-width: 576px) {
  .hero-section {
    padding: 2rem 1rem;
  }

  .hero-section h1 {
    font-size: 1.5rem;
  }

  .hero-section p {
    font-size: 1rem;
  }

  .carousel-slide {
    height: 200px;
  }

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

  main {
    padding: 1rem 0;
  }

  .tab-content {
    padding: 1rem;
  }
}