/* === CSS VARIABLES === */
:root {
  --primary: #667eea;
  --secondary: #764ba2;
  --accent: #f093fb;
  --bg: #0f0f23;
  --bg2: #1a1a2e;
  --bg3: #16213e;
  --card-bg: rgba(255,255,255,0.05);
  --card-border: rgba(255,255,255,0.1);
  --text: #e2e8f0;
  --muted: #94a3b8;
  --gradient: linear-gradient(135deg, #667eea, #764ba2);
  --gradient2: linear-gradient(135deg, #f093fb, #f5576c);
  --shadow: 0 20px 40px rgba(0,0,0,0.3);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s ease;
}

/* === RESET === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

/* === BODY === */
body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.8;
  min-height: 100vh;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

/* === SCROLL PROGRESS BAR === */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--gradient);
  z-index: 9999;
  width: 0%;
  transition: width 0.1s linear;
}

/* === CONTAINER === */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* === NAVIGATION === */
.nav-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(15, 15, 35, 0.9);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: 70px;
}

.nav-logo {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 1.4rem;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  gap: 8px;
  list-style: none;
  align-items: center;
}

.nav-links a {
  color: var(--muted);
  padding: 8px 14px;
  border-radius: 8px;
  text-decoration: none;
  transition: var(--transition);
  white-space: nowrap;
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: var(--text);
  background: var(--card-bg);
}

.nav-links .active {
  color: var(--primary);
}

/* Dropdown */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg2);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 8px;
  min-width: 220px;
  display: none;
  z-index: 100;
  box-shadow: var(--shadow);
  margin-top: 4px;
}

.dropdown:hover .dropdown-menu {
  display: block;
}

.dropdown-menu a {
  display: block;
  padding: 10px 16px;
  color: var(--muted);
  border-radius: 8px;
  text-decoration: none;
  white-space: nowrap;
  transition: var(--transition);
}

.dropdown-menu a:hover {
  color: var(--text);
  background: var(--card-bg);
}

/* Hamburger */
.hamburger {
  display: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: var(--transition);
  border-radius: 2px;
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: var(--bg2);
  padding: 20px;
  z-index: 98;
  border-bottom: 1px solid var(--card-border);
  max-height: calc(100vh - 70px);
  overflow-y: auto;
}

.mobile-menu.open {
  display: block;
}

.mobile-menu a {
  display: block;
  padding: 12px 16px;
  color: var(--text);
  text-decoration: none;
  border-radius: 8px;
  transition: var(--transition);
}

.mobile-menu a:hover {
  background: var(--card-bg);
}

/* === HERO SECTION === */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  background: radial-gradient(ellipse at top, #1a1a3e, var(--bg));
  padding-top: 70px;
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  padding: 80px 20px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.gradient-text,
.text-gradient {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto 2rem;
}

.stats-row {
  display: flex;
  gap: 40px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 3rem;
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
}

.stat-label {
  color: var(--muted);
  font-size: 0.9rem;
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  border: none;
  font-size: 1rem;
  font-family: inherit;
}

.btn-primary {
  background: var(--gradient);
  color: white;
  box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(102, 126, 234, 0.5);
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-secondary:hover {
  background: var(--primary);
  color: white;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.9rem;
}

/* === SECTION STYLES === */
.section {
  padding: 80px 20px;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.section-header p {
  color: var(--muted);
  font-size: 1.1rem;
}

/* === CARDS === */
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: 0 20px 40px rgba(102, 126, 234, 0.15);
}

.card-grid {
  display: grid;
  gap: 24px;
}

.card-grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.card-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.card-grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* === TOPIC CARDS === */
.topic-card {
  display: flex;
  flex-direction: column;
  cursor: pointer;
}

.topic-card .icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.topic-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.topic-card p {
  color: var(--muted);
  font-size: 0.9rem;
  flex: 1;
}

/* === POST CARDS === */
.post-card {
  display: flex;
  flex-direction: column;
}

.post-card-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
  font-size: 0.85rem;
  color: var(--muted);
  flex-wrap: wrap;
}

.post-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.post-card h3 a {
  color: var(--text);
  text-decoration: none;
  transition: var(--transition);
}

.post-card h3 a:hover {
  color: var(--primary);
}

.post-card p {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
  flex: 1;
}

.post-card-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: auto;
}

/* === BADGES & TAGS === */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-primary {
  background: rgba(102, 126, 234, 0.2);
  color: var(--primary);
}

.badge-purple {
  background: rgba(118, 75, 162, 0.2);
  color: #a78bfa;
}

.badge-pink {
  background: rgba(240, 147, 251, 0.2);
  color: var(--accent);
}

.badge-green {
  background: rgba(52, 211, 153, 0.2);
  color: #34d399;
}

.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.08);
  color: var(--muted);
  transition: var(--transition);
}

.tag:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
}

/* === ARTICLE / BLOG CONTENT === */
.article-wrapper {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
}

.article-content {
  min-width: 0;
}

.article-content h1 {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 1.5rem;
}

.article-content h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  padding-top: 20px;
  border-top: 1px solid var(--card-border);
}

.article-content h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
}

.article-content h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
}

.article-content p {
  margin-bottom: 1.5rem;
  color: var(--text);
  line-height: 1.9;
}

.article-content ul,
.article-content ol {
  margin: 1rem 0 1.5rem 1.5rem;
  color: var(--text);
}

.article-content li {
  margin-bottom: 0.5rem;
}

.article-content a {
  color: var(--primary);
  text-decoration: underline;
  transition: var(--transition);
}

.article-content a:hover {
  color: var(--accent);
}

.article-content img {
  max-width: 100%;
  border-radius: var(--radius);
  margin: 1.5rem 0;
}

.article-content blockquote {
  border-left: 4px solid var(--primary);
  padding: 16px 20px;
  margin: 1.5rem 0;
  background: rgba(102, 126, 234, 0.08);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--muted);
  font-style: italic;
}

/* === CODE BLOCKS === */
pre {
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 20px;
  overflow-x: auto;
  margin: 1.5rem 0;
}

pre code {
  background: none;
  padding: 0;
  color: #e2e8f0;
  border-radius: 0;
}

code {
  font-family: 'Courier New', Consolas, 'Liberation Mono', monospace;
  font-size: 0.9rem;
  color: #e2e8f0;
}

p code,
li code {
  background: rgba(102, 126, 234, 0.15);
  color: var(--primary);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.875rem;
}

/* === PROMPT BLOCKS === */
.prompt-block {
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(102, 126, 234, 0.3);
  border-radius: var(--radius);
  padding: 20px;
  margin: 1rem 0;
  position: relative;
}

.prompt-block::before {
  content: 'PROMPT';
  position: absolute;
  top: -10px;
  left: 16px;
  background: var(--primary);
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 50px;
  letter-spacing: 0.5px;
}

/* === TOC SIDEBAR === */
.sidebar {
  position: sticky;
  top: 90px;
  max-height: calc(100vh - 110px);
  overflow-y: auto;
}

.toc {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.toc h3 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  margin-bottom: 1rem;
}

.toc ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.toc li {
  margin-bottom: 4px;
}

.toc a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  display: block;
  padding: 6px 12px;
  border-radius: 6px;
  transition: var(--transition);
}

.toc a:hover {
  color: var(--text);
  background: var(--card-bg);
}

.toc a.active {
  color: var(--primary);
  background: rgba(102, 126, 234, 0.1);
}

/* === FOOTER === */
.footer {
  background: var(--bg2);
  border-top: 1px solid var(--card-border);
  padding: 60px 20px 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
}

.footer h4 {
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text);
}

.footer ul {
  list-style: none;
  padding: 0;
}

.footer li {
  margin-bottom: 8px;
}

.footer a {
  color: var(--muted);
  text-decoration: none;
  transition: var(--transition);
  font-size: 0.95rem;
}

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

.footer-bottom {
  max-width: 1200px;
  margin: 40px auto 0;
  padding-top: 20px;
  border-top: 1px solid var(--card-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--muted);
  font-size: 0.9rem;
}

/* === NEWSLETTER === */
.newsletter-section {
  background: linear-gradient(135deg, rgba(102,126,234,0.1), rgba(118,75,162,0.1));
  border: 1px solid rgba(102, 126, 234, 0.2);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  margin: 60px auto;
  max-width: 700px;
}

.newsletter-form {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.newsletter-form input {
  flex: 1;
  min-width: 250px;
  padding: 12px 20px;
  border-radius: 50px;
  border: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
  outline: none;
  transition: var(--transition);
}

.newsletter-form input::placeholder {
  color: var(--muted);
}

.newsletter-form input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* === WORKFLOW STEP CARDS === */
.step-card {
  display: flex;
  gap: 20px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}

.step-card:hover {
  border-color: var(--primary);
  transform: translateX(4px);
}

.step-number {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: var(--gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  color: white;
  flex-shrink: 0;
}

.step-content h3 {
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.step-content p {
  color: var(--muted);
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.7;
}

/* === COMPARISON TABLE === */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
}

.compare-table th {
  background: var(--card-bg);
  padding: 14px 16px;
  text-align: left;
  color: var(--text);
  font-weight: 700;
  border-bottom: 2px solid var(--card-border);
}

.compare-table td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--muted);
}

.compare-table tr:hover td {
  background: rgba(255, 255, 255, 0.03);
}

.compare-table tr:last-child td {
  border-bottom: none;
}

/* === FAQ ACCORDION === */
.faq-item {
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  margin-bottom: 8px;
  overflow: hidden;
}

.faq-question {
  padding: 18px 20px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  color: var(--text);
  background: var(--card-bg);
  user-select: none;
  transition: var(--transition);
}

.faq-question:hover {
  background: rgba(255, 255, 255, 0.08);
}

.faq-answer {
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  color: var(--muted);
  line-height: 1.8;
}

.faq-answer.open {
  padding: 0 20px 18px;
  max-height: 500px;
}

.faq-icon {
  transition: transform 0.3s ease;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.faq-icon.open {
  transform: rotate(45deg);
}

/* === BREADCRUMB === */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 20px 0;
  font-size: 0.9rem;
  color: var(--muted);
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  transition: var(--transition);
}

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

.breadcrumb-sep {
  opacity: 0.5;
}

/* === PAGE HERO (non-homepage) === */
.page-hero {
  padding: 100px 20px 60px;
  text-align: center;
  background: radial-gradient(ellipse at top, rgba(102,126,234,0.15), transparent);
}

.page-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 1rem;
}

.page-hero p {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 700px;
  margin: 0 auto;
}

/* === RELATED POSTS GRID === */
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* === TOOL CARDS === */
.tool-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition);
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.tool-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: 0 20px 40px rgba(102, 126, 234, 0.15);
}

.tool-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.tool-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

.tool-rating {
  color: #fbbf24;
  font-size: 0.9rem;
  white-space: nowrap;
}

.tool-desc {
  color: var(--muted);
  font-size: 0.9rem;
  flex: 1;
  margin-bottom: 1rem;
  line-height: 1.7;
}

.tool-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: auto;
}

.pricing {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(52, 211, 153, 0.15);
  color: #34d399;
}

/* === TAB SYSTEM === */
.tabs {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-bottom: 2rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius);
  padding: 4px;
}

.tab {
  padding: 8px 20px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  color: var(--muted);
  transition: var(--transition);
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: 0.95rem;
}

.tab.active {
  background: var(--gradient);
  color: white;
}

.tab:hover:not(.active) {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}

.tab-content {
  display: none;
}

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

/* === ANIMATIONS === */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeIn 0.6s ease forwards;
}

[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].visible {
  opacity: 1;
  transform: translateY(0);
}

/* === SPACER UTILITIES === */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.my-1 { margin-top: 0.5rem; margin-bottom: 0.5rem; }
.my-2 { margin-top: 1rem; margin-bottom: 1rem; }
.my-3 { margin-top: 1.5rem; margin-bottom: 1.5rem; }
.my-4 { margin-top: 2rem; margin-bottom: 2rem; }
.pt-1 { padding-top: 0.5rem; }
.pt-2 { padding-top: 1rem; }
.pb-1 { padding-bottom: 0.5rem; }
.pb-2 { padding-bottom: 1rem; }
.text-center { text-align: center; }
.text-muted { color: var(--muted); }
.text-primary { color: var(--primary); }
.font-bold { font-weight: 700; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.w-full { width: 100%; }

/* === ABOUT SECTION === */
.about-section {
  background: linear-gradient(135deg, rgba(102,126,234,0.05), rgba(118,75,162,0.05));
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  max-width: 900px;
  margin: 0 auto;
}

.about-section h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.about-section p {
  color: var(--muted);
  font-size: 1rem;
  margin-bottom: 1rem;
  line-height: 1.8;
}

/* === HIGHLIGHT BOX === */
.highlight-box {
  background: linear-gradient(135deg, rgba(102,126,234,0.1), rgba(118,75,162,0.1));
  border: 1px solid rgba(102,126,234,0.3);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin: 1.5rem 0;
}

.highlight-box p {
  margin: 0;
  color: var(--text);
}

/* === DIVIDER === */
.divider {
  border: none;
  border-top: 1px solid var(--card-border);
  margin: 2rem 0;
}

/* === SCROLLBAR === */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* === SELECTION === */
::selection {
  background: rgba(102, 126, 234, 0.3);
  color: var(--text);
}

/* === FOCUS VISIBLE === */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ===================================================
   RESPONSIVE STYLES
   =================================================== */

/* Tablet: max 1024px */
@media (max-width: 1024px) {
  .card-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }

  .article-wrapper {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    max-height: none;
  }

  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mobile: max 768px */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-links {
    display: none;
  }

  .card-grid-2,
  .card-grid-3,
  .card-grid-4 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

  .section {
    padding: 60px 20px;
  }

  .hero-content {
    padding: 60px 20px;
  }

  .stats-row {
    gap: 24px;
  }

  .article-content h1 {
    font-size: 1.8rem;
  }

  .article-content h2 {
    font-size: 1.4rem;
  }

  .newsletter-section {
    padding: 40px 24px;
  }

  .newsletter-form {
    flex-direction: column;
  }

  .newsletter-form input {
    min-width: unset;
    width: 100%;
  }

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

  .step-card {
    flex-direction: column;
    gap: 12px;
  }

  .compare-table {
    font-size: 0.85rem;
  }

  .compare-table th,
  .compare-table td {
    padding: 10px 12px;
  }

  .about-section {
    padding: 40px 24px;
  }

  .tabs {
    gap: 2px;
  }

  .tab {
    padding: 8px 14px;
    font-size: 0.85rem;
  }
}

/* Small mobile: max 480px */
@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.8rem;
  }

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

  .stat-number {
    font-size: 1.6rem;
  }

  .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }

  .page-hero {
    padding: 90px 16px 50px;
  }

  .section-header h2 {
    font-size: 1.6rem;
  }
}

/* ===================================================
   TESTIMONIALS
   =================================================== */

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  backdrop-filter: blur(10px);
  transition: var(--transition);
  position: relative;
}

.testimonial-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(102,126,234,0.12);
}

.testimonial-quote {
  font-size: 2.5rem;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 0.75rem;
  opacity: 0.5;
}

.testimonial-text {
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
  font-style: italic;
}

.testimonial-result {
  display: inline-block;
  background: linear-gradient(135deg,rgba(102,126,234,0.15),rgba(118,75,162,0.15));
  border: 1px solid rgba(102,126,234,0.3);
  border-radius: 50px;
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 1.25rem;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
  color: white;
  flex-shrink: 0;
}

.testimonial-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text);
}

.testimonial-role {
  font-size: 0.8rem;
  color: var(--muted);
}

.star-rating {
  color: #fbbf24;
  font-size: 0.9rem;
  letter-spacing: 2px;
  margin-bottom: 0.75rem;
}

/* ===================================================
   SERVICES / MONETIZATION
   =================================================== */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.pricing-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition);
  backdrop-filter: blur(10px);
  position: relative;
  display: flex;
  flex-direction: column;
}

.pricing-card.featured {
  border-color: var(--primary);
  background: linear-gradient(135deg,rgba(102,126,234,0.1),rgba(118,75,162,0.1));
  transform: scale(1.03);
}

.pricing-card:hover:not(.featured) {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(102,126,234,0.12);
}

.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient);
  color: white;
  padding: 4px 20px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  white-space: nowrap;
  letter-spacing: 0.5px;
}

.pricing-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}

.pricing-name {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.pricing-price {
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  margin-bottom: 0.3rem;
}

.pricing-period {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 1.5rem;
}

.pricing-features {
  list-style: none;
  margin-bottom: 2rem;
  flex: 1;
}

.pricing-features li {
  padding: 8px 0;
  border-bottom: 1px solid var(--card-border);
  font-size: 0.9rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-features li.included {
  color: var(--text);
}

.pricing-features li.included::before {
  content: '✓';
  color: #34d399;
  font-weight: 700;
  flex-shrink: 0;
}

.pricing-features li.excluded {
  opacity: 0.4;
}

.pricing-features li.excluded::before {
  content: '✗';
  color: var(--muted);
  flex-shrink: 0;
}

/* ===================================================
   TECH STACK
   =================================================== */

.tech-stack-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.tech-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}

.tech-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(102,126,234,0.12);
}

.tech-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}

.tech-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.4rem;
}

.tech-desc {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.5;
}

.tech-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 50px;
  font-size: 0.7rem;
  font-weight: 600;
  margin-top: 0.6rem;
  background: rgba(102,126,234,0.15);
  color: var(--primary);
}

/* ===================================================
   INTERACTIVE WORKFLOW DEMO
   =================================================== */

.demo-container {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.demo-header {
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--card-border);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.demo-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
}

.demo-dot.red   { background: #ff5f57; }
.demo-dot.yellow{ background: #febc2e; }
.demo-dot.green { background: #28c840; }

.demo-title {
  font-size: 0.85rem;
  color: var(--muted);
  margin-left: 8px;
}

.demo-steps {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 360px;
}

.demo-steps-list {
  border-right: 1px solid var(--card-border);
  overflow-y: auto;
  max-height: 360px;
}

.demo-step-item {
  padding: 14px 20px;
  border-bottom: 1px solid var(--card-border);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
}

.demo-step-item:last-child {
  border-bottom: none;
}

.demo-step-item:hover {
  background: rgba(102,126,234,0.08);
}

.demo-step-item.active {
  background: linear-gradient(135deg,rgba(102,126,234,0.15),rgba(118,75,162,0.1));
  border-left: 3px solid var(--primary);
  color: var(--text);
}

.demo-step-num {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.demo-step-item.active .demo-step-num {
  background: var(--gradient);
  color: white;
}

.demo-step-item.completed .demo-step-num {
  background: rgba(52,211,153,0.2);
  color: #34d399;
}

.demo-panel {
  padding: 28px;
  display: none;
}

.demo-panel.active {
  display: block;
}

.demo-node-type {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(102,126,234,0.15);
  border: 1px solid rgba(102,126,234,0.3);
  border-radius: 50px;
  padding: 4px 14px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.demo-panel h3 {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.demo-panel p {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}

.demo-code {
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 16px;
  font-family: 'Courier New', monospace;
  font-size: 0.8rem;
  color: #a5f3fc;
  line-height: 1.6;
  overflow-x: auto;
}

.demo-output-label {
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
  margin-bottom: 0.5rem;
  margin-top: 1rem;
}

/* ===================================================
   DOWNLOAD TEMPLATE CTA
   =================================================== */

.download-cta {
  background: linear-gradient(135deg, rgba(102,126,234,0.1), rgba(118,75,162,0.1));
  border: 1px solid rgba(102,126,234,0.3);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.download-cta-info h3 {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 0.4rem;
}

.download-cta-info p {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0;
}

.download-cta-actions {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
  flex-wrap: wrap;
}

.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--gradient);
  color: white;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.btn-download:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(102,126,234,0.35);
}

/* ===================================================
   DEPLOYMENT OPTIONS
   =================================================== */

.deploy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.deploy-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition);
  backdrop-filter: blur(10px);
  text-align: center;
}

.deploy-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(102,126,234,0.12);
}

.deploy-icon {
  font-size: 2.2rem;
  margin-bottom: 0.75rem;
}

.deploy-name {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.deploy-desc {
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.6;
  margin-bottom: 1rem;
}

.deploy-steps {
  text-align: left;
  font-size: 0.8rem;
  color: var(--muted);
  padding-left: 1rem;
  margin-bottom: 1.25rem;
  line-height: 1.8;
}

/* ===================================================
   AI ASSISTANT CHAT WIDGET
   =================================================== */

.ai-widget-btn {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 999;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--gradient);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  box-shadow: 0 8px 24px rgba(102,126,234,0.4);
  transition: var(--transition);
}

.ai-widget-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 32px rgba(102,126,234,0.55);
}

.ai-widget-btn .ai-notif {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 18px;
  height: 18px;
  background: #f5576c;
  border-radius: 50%;
  font-size: 0.65rem;
  font-weight: 700;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ai-chat-panel {
  position: fixed;
  bottom: 100px;
  right: 28px;
  z-index: 998;
  width: 360px;
  background: var(--bg2);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
  display: none;
  flex-direction: column;
  overflow: hidden;
  max-height: 520px;
}

.ai-chat-panel.open {
  display: flex;
  animation: slideUp 0.25s ease;
}

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

.ai-chat-header {
  background: var(--gradient);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ai-chat-header-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ai-chat-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.ai-chat-title {
  font-weight: 700;
  color: white;
  font-size: 0.95rem;
}

.ai-chat-subtitle {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.75);
}

.ai-chat-close {
  background: none;
  border: none;
  color: white;
  cursor: pointer;
  font-size: 1.2rem;
  opacity: 0.8;
  transition: var(--transition);
  padding: 4px;
}

.ai-chat-close:hover {
  opacity: 1;
}

.ai-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ai-msg {
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.ai-msg-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.ai-msg-bubble {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--card-border);
  border-radius: 12px 12px 12px 4px;
  padding: 10px 14px;
  font-size: 0.88rem;
  color: var(--text);
  line-height: 1.6;
  max-width: 260px;
}

.user-msg .ai-msg-bubble {
  background: linear-gradient(135deg,rgba(102,126,234,0.2),rgba(118,75,162,0.2));
  border-color: rgba(102,126,234,0.3);
  border-radius: 12px 12px 4px 12px;
  margin-left: auto;
}

.user-msg {
  flex-direction: row-reverse;
}

.ai-chat-options {
  padding: 0 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ai-opt-btn {
  width: 100%;
  padding: 10px 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.875rem;
  font-family: inherit;
  cursor: pointer;
  text-align: left;
  transition: var(--transition);
}

.ai-opt-btn:hover {
  background: rgba(102,126,234,0.12);
  border-color: var(--primary);
  color: var(--primary);
}

.ai-chat-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--card-border);
  display: flex;
  gap: 8px;
}

.ai-chat-input {
  flex: 1;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 8px 14px;
  color: var(--text);
  font-size: 0.875rem;
  font-family: inherit;
  outline: none;
}

.ai-chat-input::placeholder {
  color: var(--muted);
}

.ai-chat-input:focus {
  border-color: var(--primary);
}

.ai-chat-send {
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  background: var(--gradient);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

/* ===================================================
   RESPONSIVE – NEW COMPONENTS
   =================================================== */

@media (max-width: 1024px) {
  .testimonial-grid,
  .pricing-grid,
  .tech-stack-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pricing-card.featured {
    transform: none;
  }

  .demo-steps {
    grid-template-columns: 1fr;
  }

  .demo-steps-list {
    max-height: 180px;
    border-right: none;
    border-bottom: 1px solid var(--card-border);
    display: flex;
    overflow-x: auto;
    overflow-y: hidden;
  }

  .demo-step-item {
    flex-shrink: 0;
    border-bottom: none;
    border-right: 1px solid var(--card-border);
    min-width: 160px;
  }
}

@media (max-width: 768px) {
  .testimonial-grid,
  .pricing-grid,
  .tech-stack-grid,
  .deploy-grid {
    grid-template-columns: 1fr;
  }

  .download-cta {
    flex-direction: column;
    text-align: center;
  }

  .download-cta-actions {
    flex-direction: column;
    width: 100%;
  }

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

  .ai-chat-panel {
    width: calc(100vw - 32px);
    right: 16px;
    bottom: 90px;
  }

  .ai-widget-btn {
    bottom: 20px;
    right: 20px;
    width: 52px;
    height: 52px;
    font-size: 1.4rem;
  }
}