/* ========================================
   BENUFAG.COM — CSS SYSTEM
   Design System with Custom Properties & Responsive Grid
   ======================================== */

/* ========== CSS CUSTOM PROPERTIES ========== */
:root {
  /* Colors — Light Theme */
  --bnf-dark: #0B132B;
  --bnf-dark-2: #1C2541;
  --bnf-dark-3: #3A506B;
  --bnf-accent: #5BC0BE;
  --bnf-accent-2: #E8F1F2;
  --bnf-text: #0B132B;
  --bnf-text-muted: #3A506B;
  --bnf-bg: #FFFFFF;
  --bnf-bg-alt: #F5F7FA;
  --bnf-border: #D0D7E3;

  /* Spacing */
  --bnf-gap-xs: 8px;
  --bnf-gap-sm: 12px;
  --bnf-gap-md: 16px;
  --bnf-gap-lg: 24px;
  --bnf-gap-xl: 32px;
  --bnf-gap-2xl: 48px;

  /* Typography */
  --bnf-font-stack: system-ui, -apple-system, "Segoe UI", Roboto, Inter,
    "Noto Sans", Arial, sans-serif;
  --bnf-line-height: 1.6;
  --bnf-letter-spacing: 0.3px;

  /* Borders & Radius */
  --bnf-radius: 8px;
  --bnf-radius-lg: 12px;
  --bnf-border-width: 1px;

  /* Transitions */
  --bnf-transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --bnf-transition-fast: all 0.15s ease-out;

  /* Shadows */
  --bnf-shadow-sm: 0 1px 3px rgba(11, 19, 43, 0.08);
  --bnf-shadow-md: 0 4px 12px rgba(11, 19, 43, 0.12);
  --bnf-shadow-lg: 0 8px 24px rgba(11, 19, 43, 0.16);
}

/* Dark Theme */
@media (prefers-color-scheme: dark) {
  :root {
    --bnf-text: #E8F1F2;
    --bnf-text-muted: #B0C4D4;
    --bnf-bg: #0B132B;
    --bnf-bg-alt: #1C2541;
    --bnf-border: #3A506B;
  }
}

/* ========== GLOBAL STYLES ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--bnf-font-stack);
  color: var(--bnf-text);
  background-color: var(--bnf-bg);
  line-height: var(--bnf-line-height);
  letter-spacing: var(--bnf-letter-spacing);
}

/* ========== TYPOGRAPHY ========== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  margin-bottom: var(--bnf-gap-md);
  line-height: 1.2;
  color: var(--bnf-dark);
}

@media (prefers-color-scheme: dark) {
  h1, h2, h3, h4, h5, h6 {
    color: var(--bnf-accent-2);
  }
}

h1 {
  font-size: clamp(32px, 6vw, 64px);
  margin-bottom: var(--bnf-gap-lg);
}

h2 {
  font-size: clamp(28px, 5vw, 48px);
  margin-bottom: var(--bnf-gap-lg);
}

h3 {
  font-size: clamp(24px, 4vw, 36px);
  margin-bottom: var(--bnf-gap-md);
}

h4 {
  font-size: 20px;
  margin-bottom: var(--bnf-gap-md);
}

p {
  margin-bottom: var(--bnf-gap-md);
  color: var(--bnf-text);
}

a {
  color: var(--bnf-accent);
  text-decoration: none;
  transition: var(--bnf-transition-fast);
  border-radius: 2px;
}

a:hover {
  color: var(--bnf-dark-3);
  text-decoration: underline;
}

a:focus {
  outline: 2px solid var(--bnf-accent);
  outline-offset: 2px;
}

strong, b {
  font-weight: 700;
  color: var(--bnf-dark);
}

@media (prefers-color-scheme: dark) {
  strong, b {
    color: var(--bnf-accent-2);
  }
}

code, pre {
  background-color: var(--bnf-bg-alt);
  border-radius: var(--bnf-radius);
  font-family: "Courier New", monospace;
  font-size: 0.9em;
}

code {
  padding: 2px 6px;
  color: var(--bnf-accent);
}

pre {
  padding: var(--bnf-gap-md);
  overflow-x: auto;
  margin-bottom: var(--bnf-gap-md);
}

pre code {
  background: none;
  padding: 0;
  color: var(--bnf-text);
}

/* ========== UTILITIES ========== */
.bnf-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--bnf-gap-lg);
  width: 100%;
}

@media (max-width: 768px) {
  .bnf-container {
    padding: var(--bnf-gap-md);
  }
}

@media (max-width: 480px) {
  .bnf-container {
    padding: var(--bnf-gap-sm);
  }
}

.bnf-grid {
  display: grid;
  gap: var(--bnf-gap-lg);
  width: 100%;
}

.bnf-grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.bnf-grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.bnf-grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

@media (max-width: 768px) {
  .bnf-grid-3,
  .bnf-grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  }
}

@media (max-width: 480px) {
  .bnf-grid,
  .bnf-grid-2,
  .bnf-grid-3,
  .bnf-grid-4 {
    grid-template-columns: 1fr;
    gap: var(--bnf-gap-md);
  }
}

/* Flex utilities */
.bnf-flex {
  display: flex;
  gap: var(--bnf-gap-md);
}

.bnf-flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--bnf-gap-md);
}

.bnf-flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--bnf-gap-md);
}

.bnf-flex-column {
  display: flex;
  flex-direction: column;
  gap: var(--bnf-gap-md);
}

/* Text utilities */
.bnf-text-center {
  text-align: center;
}

.bnf-text-muted {
  color: var(--bnf-text-muted);
}

.bnf-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.bnf-hidden {
  display: none !important;
}

/* ========== BUTTONS ========== */
.bnf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--bnf-gap-xs);
  padding: 12px 24px;
  border: var(--bnf-border-width) solid transparent;
  border-radius: var(--bnf-radius);
  font-family: var(--bnf-font-stack);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--bnf-transition);
  text-decoration: none;
  user-select: none;
  white-space: nowrap;
}

.bnf-btn:focus {
  outline: 2px solid var(--bnf-accent);
  outline-offset: 2px;
}

.bnf-btn-primary {
  background-color: var(--bnf-accent);
  color: var(--bnf-bg);
  border-color: var(--bnf-accent);
}

.bnf-btn-primary:hover {
  background-color: var(--bnf-dark-3);
  border-color: var(--bnf-dark-3);
  transform: translateY(-2px);
  box-shadow: var(--bnf-shadow-md);
}

.bnf-btn-secondary {
  background-color: transparent;
  color: var(--bnf-accent);
  border-color: var(--bnf-accent);
}

.bnf-btn-secondary:hover {
  background-color: var(--bnf-accent);
  color: var(--bnf-bg);
  transform: translateY(-2px);
  box-shadow: var(--bnf-shadow-md);
}

.bnf-btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
}

.bnf-btn-lg {
  padding: 16px 32px;
  font-size: 1.125rem;
}

/* ========== SECTIONS & CARDS ========== */
.bnf-section {
  padding: var(--bnf-gap-2xl) 0;
}

.bnf-section-alt {
  background-color: var(--bnf-bg-alt);
}

@media (max-width: 768px) {
  .bnf-section {
    padding: var(--bnf-gap-xl) 0;
  }
}

@media (max-width: 480px) {
  .bnf-section {
    padding: var(--bnf-gap-lg) 0;
  }
}

.bnf-card {
  background-color: var(--bnf-bg);
  border: var(--bnf-border-width) solid var(--bnf-border);
  border-radius: var(--bnf-radius-lg);
  padding: var(--bnf-gap-lg);
  transition: var(--bnf-transition);
  display: flex;
  flex-direction: column;
}

.bnf-card:hover {
  border-color: var(--bnf-accent);
  box-shadow: var(--bnf-shadow-md);
  transform: translateY(-4px) scale(1.01);
}

.bnf-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--bnf-gap-sm);
  color: var(--bnf-dark);
}

@media (prefers-color-scheme: dark) {
  .bnf-card-title {
    color: var(--bnf-accent-2);
  }
}

.bnf-card-text {
  flex: 1;
  color: var(--bnf-text-muted);
  margin-bottom: var(--bnf-gap-md);
}

.bnf-card-footer {
  margin-top: auto;
}

/* ========== HEADER & NAVIGATION ========== */
.bnf-header {
  background-color: var(--bnf-bg);
  border-bottom: var(--bnf-border-width) solid var(--bnf-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(8px);
  background-color: rgba(255, 255, 255, 0.95);
}

@media (prefers-color-scheme: dark) {
  .bnf-header {
    background-color: rgba(11, 19, 43, 0.95);
  }
}

.bnf-header-content {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--bnf-gap-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--bnf-gap-lg);
}

.bnf-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--bnf-dark);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

@media (prefers-color-scheme: dark) {
  .bnf-logo {
    color: var(--bnf-accent-2);
  }
}

.bnf-logo:hover {
  color: var(--bnf-accent);
  text-decoration: none;
}

.bnf-nav {
  display: flex;
  align-items: center;
  gap: var(--bnf-gap-lg);
  list-style: none;
}

.bnf-nav a {
  font-weight: 500;
  padding: 8px 0;
  border-bottom: 2px solid transparent;
  transition: var(--bnf-transition-fast);
}

.bnf-nav a:hover {
  color: var(--bnf-accent);
  border-bottom-color: var(--bnf-accent);
  text-decoration: none;
}

.bnf-nav a:focus {
  outline: 2px solid var(--bnf-accent);
  outline-offset: 4px;
}

.bnf-search {
  flex: 1;
  max-width: 240px;
  position: relative;
}

.bnf-search input {
  width: 100%;
  padding: 8px 12px;
  border: var(--bnf-border-width) solid var(--bnf-border);
  border-radius: var(--bnf-radius);
  font-family: var(--bnf-font-stack);
  font-size: 0.875rem;
  background-color: var(--bnf-bg-alt);
  color: var(--bnf-text);
}

.bnf-search input::placeholder {
  color: var(--bnf-text-muted);
}

.bnf-search input:focus {
  outline: none;
  border-color: var(--bnf-accent);
  box-shadow: 0 0 0 3px rgba(91, 192, 190, 0.1);
}

.bnf-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--bnf-text);
}

@media (max-width: 768px) {
  .bnf-search {
    display: none;
  }

  .bnf-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: var(--bnf-bg);
    border-bottom: var(--bnf-border-width) solid var(--bnf-border);
    padding: var(--bnf-gap-md);
    gap: var(--bnf-gap-md);
  }

  .bnf-nav.active {
    display: flex;
  }

  .bnf-menu-toggle {
    display: block;
  }
}

/* ========== FOOTER ========== */
.bnf-footer {
  background-color: var(--bnf-dark);
  color: var(--bnf-accent-2);
  padding: var(--bnf-gap-2xl) 0;
  margin-top: var(--bnf-gap-2xl);
}

.bnf-footer-content {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--bnf-gap-lg);
}

.bnf-footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--bnf-gap-xl);
  margin-bottom: var(--bnf-gap-xl);
}

.bnf-footer-section h4 {
  color: var(--bnf-accent-2);
  margin-bottom: var(--bnf-gap-md);
}

.bnf-footer-section ul {
  list-style: none;
}

.bnf-footer-section li {
  margin-bottom: var(--bnf-gap-sm);
}

.bnf-footer-section a {
  color: var(--bnf-accent-2);
  text-decoration: none;
  opacity: 0.9;
  transition: var(--bnf-transition-fast);
}

.bnf-footer-section a:hover {
  color: var(--bnf-accent);
  opacity: 1;
  text-decoration: underline;
}

.bnf-footer-divider {
  border-top: var(--bnf-border-width) solid rgba(91, 192, 190, 0.2);
  margin: var(--bnf-gap-xl) 0;
  padding-top: var(--bnf-gap-xl);
}

.bnf-footer-bottom {
  display: flex;
  flex-direction: column;
  gap: var(--bnf-gap-sm);
  font-size: 0.875rem;
  color: rgba(232, 241, 242, 0.8);
}

@media (max-width: 480px) {
  .bnf-footer {
    padding: var(--bnf-gap-xl) 0;
  }

  .bnf-footer-grid {
    grid-template-columns: 1fr;
    gap: var(--bnf-gap-lg);
  }
}

/* ========== HERO SECTION ========== */
.bnf-hero {
  background: linear-gradient(135deg, var(--bnf-bg) 0%, var(--bnf-bg-alt) 100%);
  padding: var(--bnf-gap-2xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.bnf-hero-content {
  position: relative;
  z-index: 2;
}

.bnf-hero h1 {
  margin-bottom: var(--bnf-gap-lg);
}

.bnf-hero-subtitle {
  font-size: 1.25rem;
  color: var(--bnf-text-muted);
  margin-bottom: var(--bnf-gap-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.bnf-hero-buttons {
  display: flex;
  gap: var(--bnf-gap-md);
  justify-content: center;
  flex-wrap: wrap;
}

@media (max-width: 480px) {
  .bnf-hero {
    padding: var(--bnf-gap-xl) 0;
  }

  .bnf-hero-buttons {
    flex-direction: column;
  }

  .bnf-hero-buttons .bnf-btn {
    width: 100%;
  }
}

/* SVG Pattern Background */
.bnf-pattern-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.1;
  z-index: 1;
  pointer-events: none;
}

.bnf-pattern-bg svg {
  width: 100%;
  height: 100%;
}

/* ========== FORMS ========== */
.bnf-form-group {
  margin-bottom: var(--bnf-gap-md);
}

.bnf-form-group label {
  display: block;
  margin-bottom: var(--bnf-gap-sm);
  font-weight: 600;
  color: var(--bnf-dark);
}

@media (prefers-color-scheme: dark) {
  .bnf-form-group label {
    color: var(--bnf-accent-2);
  }
}

.bnf-form-group input,
.bnf-form-group textarea,
.bnf-form-group select {
  width: 100%;
  padding: var(--bnf-gap-sm);
  border: var(--bnf-border-width) solid var(--bnf-border);
  border-radius: var(--bnf-radius);
  font-family: var(--bnf-font-stack);
  font-size: 1rem;
  background-color: var(--bnf-bg);
  color: var(--bnf-text);
  transition: var(--bnf-transition-fast);
}

.bnf-form-group input:focus,
.bnf-form-group textarea:focus,
.bnf-form-group select:focus {
  outline: none;
  border-color: var(--bnf-accent);
  box-shadow: 0 0 0 3px rgba(91, 192, 190, 0.1);
}

.bnf-form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.bnf-checkbox {
  display: flex;
  align-items: center;
  gap: var(--bnf-gap-sm);
  margin-bottom: var(--bnf-gap-md);
}

.bnf-checkbox input[type="checkbox"] {
  width: auto;
  cursor: pointer;
}

.bnf-checkbox label {
  margin: 0;
  cursor: pointer;
  font-weight: normal;
}

/* ========== TEST & ROADMAP ========== */
.bnf-test-step {
  display: none;
  animation: slideIn 0.3s ease-out;
}

.bnf-test-step.active {
  display: block;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.bnf-test-progress {
  display: flex;
  gap: var(--bnf-gap-sm);
  margin-bottom: var(--bnf-gap-lg);
  justify-content: center;
}

.bnf-progress-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--bnf-border);
  transition: var(--bnf-transition-fast);
}

.bnf-progress-dot.active {
  background-color: var(--bnf-accent);
  transform: scale(1.2);
}

.bnf-roadmap {
  display: grid;
  gap: var(--bnf-gap-md);
  position: relative;
  padding: var(--bnf-gap-xl) 0;
}

.bnf-roadmap-track {
  border-left: 3px solid var(--bnf-accent);
  padding-left: var(--bnf-gap-lg);
  position: relative;
}

.bnf-roadmap-track::before {
  content: '';
  position: absolute;
  left: -8px;
  top: 6px;
  width: 14px;
  height: 14px;
  background-color: var(--bnf-accent);
  border-radius: 50%;
  border: 3px solid var(--bnf-bg);
}

.bnf-roadmap-title {
  font-weight: 700;
  margin-bottom: var(--bnf-gap-sm);
}

.bnf-roadmap-items {
  display: grid;
  gap: var(--bnf-gap-sm);
}

.bnf-roadmap-item {
  font-size: 0.95rem;
  padding: var(--bnf-gap-sm);
  border-radius: var(--bnf-radius);
  background-color: var(--bnf-bg-alt);
  padding-left: var(--bnf-gap-md);
}

/* ========== FILTERS & TAGS ========== */
.bnf-filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--bnf-gap-md);
  margin-bottom: var(--bnf-gap-lg);
}

.bnf-tag {
  padding: var(--bnf-gap-xs) var(--bnf-gap-sm);
  border: var(--bnf-border-width) solid var(--bnf-border);
  border-radius: 20px;
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--bnf-transition-fast);
  background-color: var(--bnf-bg);
  color: var(--bnf-text);
}

.bnf-tag:hover {
  border-color: var(--bnf-accent);
  color: var(--bnf-accent);
}

.bnf-tag.active {
  background-color: var(--bnf-accent);
  color: var(--bnf-bg);
  border-color: var(--bnf-accent);
}

/* ========== READING PROGRESS ========== */
.bnf-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--bnf-accent) 0%, var(--bnf-dark-3) 100%);
  z-index: 2000;
  width: 0%;
  transition: width 0.1s linear;
}

/* ========== ARTICLE STYLES ========== */
.bnf-article {
  max-width: 800px;
  margin: 0 auto;
}

.bnf-article-header {
  margin-bottom: var(--bnf-gap-2xl);
  padding-bottom: var(--bnf-gap-xl);
  border-bottom: var(--bnf-border-width) solid var(--bnf-border);
}

.bnf-article-meta {
  display: flex;
  gap: var(--bnf-gap-md);
  flex-wrap: wrap;
  font-size: 0.875rem;
  color: var(--bnf-text-muted);
  margin-bottom: var(--bnf-gap-md);
}

.bnf-article-tags {
  display: flex;
  gap: var(--bnf-gap-xs);
  flex-wrap: wrap;
}

.bnf-article-tag {
  display: inline-block;
  padding: 4px 8px;
  background-color: var(--bnf-accent);
  color: var(--bnf-bg);
  border-radius: var(--bnf-radius);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.bnf-article-toc {
  background-color: var(--bnf-bg-alt);
  border-radius: var(--bnf-radius-lg);
  padding: var(--bnf-gap-lg);
  margin-bottom: var(--bnf-gap-xl);
}

.bnf-article-toc h4 {
  margin-bottom: var(--bnf-gap-md);
}

.bnf-article-toc ul {
  list-style: none;
}

.bnf-article-toc li {
  margin-bottom: var(--bnf-gap-sm);
}

.bnf-article-toc a {
  padding: 4px 0;
  display: block;
}

.bnf-article-content {
  line-height: 1.8;
}

.bnf-article-content h2,
.bnf-article-content h3 {
  margin-top: var(--bnf-gap-xl);
  margin-bottom: var(--bnf-gap-md);
  scroll-margin-top: 80px;
}

.bnf-article-content blockquote {
  border-left: 4px solid var(--bnf-accent);
  padding-left: var(--bnf-gap-md);
  margin: var(--bnf-gap-lg) 0;
  color: var(--bnf-text-muted);
  font-style: italic;
}

/* ========== INTERACTIVE ELEMENTS ========== */
.bnf-toggle {
  cursor: pointer;
  user-select: none;
}

.bnf-toggle-title {
  display: flex;
  align-items: center;
  gap: var(--bnf-gap-sm);
  font-weight: 600;
  padding: var(--bnf-gap-md);
  background-color: var(--bnf-bg-alt);
  border-radius: var(--bnf-radius);
  transition: var(--bnf-transition-fast);
}

.bnf-toggle:hover .bnf-toggle-title {
  background-color: rgba(91, 192, 190, 0.1);
}

.bnf-toggle-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease-out;
}

.bnf-toggle.open .bnf-toggle-icon {
  transform: rotate(90deg);
}

.bnf-toggle-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.bnf-toggle.open .bnf-toggle-content {
  max-height: 2000px;
}

.bnf-toggle-body {
  padding: var(--bnf-gap-md);
  border-left: 3px solid var(--bnf-accent);
}

/* ========== CHECKLIST ========== */
.bnf-checklist {
  list-style: none;
  background-color: var(--bnf-bg-alt);
  padding: var(--bnf-gap-lg);
  border-radius: var(--bnf-radius-lg);
  margin: var(--bnf-gap-md) 0;
}

.bnf-checklist li {
  display: flex;
  align-items: flex-start;
  gap: var(--bnf-gap-md);
  padding: var(--bnf-gap-sm) 0;
  cursor: pointer;
  transition: var(--bnf-transition-fast);
}

.bnf-checklist li:hover {
  color: var(--bnf-accent);
}

.bnf-checklist input[type="checkbox"] {
  margin-top: 2px;
  cursor: pointer;
  width: 20px;
  height: 20px;
  accent-color: var(--bnf-accent);
}

.bnf-checklist input[type="checkbox"]:checked + label {
  text-decoration: line-through;
  color: var(--bnf-text-muted);
}

.bnf-checklist label {
  cursor: pointer;
  flex: 1;
}

/* ========== PLAYGROUND ========== */
.bnf-playground {
  background-color: var(--bnf-bg-alt);
  border-radius: var(--bnf-radius-lg);
  padding: var(--bnf-gap-lg);
  margin: var(--bnf-gap-lg) 0;
}

.bnf-playground-input {
  margin-bottom: var(--bnf-gap-lg);
}

.bnf-playground-preview {
  background-color: var(--bnf-bg);
  border: 2px dashed var(--bnf-border);
  border-radius: var(--bnf-radius);
  padding: var(--bnf-gap-lg);
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

/* ========== KANBAN ========== */
.bnf-kanban {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--bnf-gap-lg);
  padding: var(--bnf-gap-lg) 0;
}

.bnf-kanban-column {
  background-color: var(--bnf-bg-alt);
  border-radius: var(--bnf-radius-lg);
  padding: var(--bnf-gap-md);
  min-height: 400px;
}

.bnf-kanban-header {
  font-weight: 700;
  margin-bottom: var(--bnf-gap-md);
  padding-bottom: var(--bnf-gap-md);
  border-bottom: 2px solid var(--bnf-accent);
}

.bnf-kanban-items {
  display: flex;
  flex-direction: column;
  gap: var(--bnf-gap-sm);
}

.bnf-kanban-item {
  background-color: var(--bnf-bg);
  border: var(--bnf-border-width) solid var(--bnf-border);
  border-radius: var(--bnf-radius);
  padding: var(--bnf-gap-md);
  cursor: move;
  transition: var(--bnf-transition-fast);
  border-left: 3px solid var(--bnf-accent);
}

.bnf-kanban-item:hover {
  box-shadow: var(--bnf-shadow-md);
  transform: translateY(-2px);
}

.bnf-kanban-item-drag-handle {
  display: flex;
  align-items: center;
  gap: var(--bnf-gap-xs);
  font-weight: 600;
  margin-bottom: var(--bnf-gap-sm);
}

.bnf-kanban-item-content {
  font-size: 0.95rem;
  line-height: 1.5;
}

.bnf-kanban-item-delete {
  display: none;
  margin-top: var(--bnf-gap-sm);
  width: 100%;
  padding: 8px;
  background-color: rgba(255, 100, 100, 0.1);
  color: #ff6464;
  border: 1px solid #ff6464;
  border-radius: var(--bnf-radius);
  cursor: pointer;
  font-size: 0.85rem;
  transition: var(--bnf-transition-fast);
}

.bnf-kanban-item:hover .bnf-kanban-item-delete {
  display: block;
}

.bnf-kanban-item-delete:hover {
  background-color: #ff6464;
  color: white;
}

/* ========== COOKIES BANNER ========== */
.bnf-cookies {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--bnf-dark);
  color: var(--bnf-accent-2);
  padding: var(--bnf-gap-lg);
  z-index: 1500;
  display: flex;
  gap: var(--bnf-gap-lg);
  align-items: center;
  justify-content: space-between;
  animation: slideUp 0.3s ease-out;
  box-shadow: var(--bnf-shadow-lg);
}

@keyframes slideUp {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

.bnf-cookies.hidden {
  display: none;
}

.bnf-cookies-text {
  flex: 1;
  font-size: 0.95rem;
}

.bnf-cookies button {
  white-space: nowrap;
  flex-shrink: 0;
}

@media (max-width: 480px) {
  .bnf-cookies {
    flex-direction: column;
    gap: var(--bnf-gap-md);
  }

  .bnf-cookies-text {
    text-align: center;
  }

  .bnf-cookies button {
    width: 100%;
  }
}

/* ========== PAGINATION ========== */
.bnf-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--bnf-gap-md);
  margin: var(--bnf-gap-xl) 0;
  flex-wrap: wrap;
}

.bnf-pagination a,
.bnf-pagination span {
  padding: 8px 12px;
  border: var(--bnf-border-width) solid var(--bnf-border);
  border-radius: var(--bnf-radius);
  text-decoration: none;
  color: var(--bnf-text);
}

.bnf-pagination a:hover {
  background-color: var(--bnf-accent);
  color: var(--bnf-bg);
  border-color: var(--bnf-accent);
  text-decoration: none;
}

.bnf-pagination .active {
  background-color: var(--bnf-accent);
  color: var(--bnf-bg);
  border-color: var(--bnf-accent);
}

/* ========== ANIMATIONS & TRANSITIONS ========== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ========== PRINT STYLES ========== */
@media print {
  .bnf-header,
  .bnf-footer,
  .bnf-cookies,
  .bnf-menu-toggle {
    display: none;
  }

  body {
    line-height: 1.5;
  }

  a {
    text-decoration: underline;
  }
}