* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --secondary: #f97316;
  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #1e293b;
  --text-light: #64748b;
  --border: #e2e8f0;
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  background: var(--surface);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
}

.logo svg {
  width: 36px;
  height: 36px;
  color: var(--primary);
}

nav {
  display: flex;
  gap: 30px;
}

nav a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
}

.mobile-menu-btn svg {
  width: 28px;
  height: 28px;
  color: var(--text);
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 80px 0;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.2;
}

.hero p {
  font-size: 1.2rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto 30px;
}

/* Sections */
section {
  padding: 60px 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
  color: var(--text);
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.card {
  background: var(--surface);
  padding: 30px;
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 60px;
  height: 60px;
  background: var(--primary);
  color: white;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.card-icon svg {
  width: 32px;
  height: 32px;
}

.card h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
}

.card p {
  color: var(--text-light);
}

/* CTA Buttons */
.cta-btn {
  display: inline-block;
  background: var(--secondary);
  color: white;
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s;
}

.cta-btn:hover {
  background: #ea580c;
  transform: translateY(-2px);
}

.cta-floating {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
  box-shadow: var(--shadow-lg);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

/* Footer */
footer {
  background: var(--text);
  color: white;
  padding: 50px 0 30px;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-bottom: 30px;
}

.footer-section h4 {
  font-size: 1.1rem;
  margin-bottom: 15px;
}

.footer-section a {
  display: block;
  color: #cbd5e1;
  text-decoration: none;
  margin-bottom: 8px;
  transition: color 0.2s;
}

.footer-section a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid #334155;
  padding-top: 20px;
  text-align: center;
  color: #94a3b8;
  font-size: 0.9rem;
}

/* Page Header */
.page-header {
  background: var(--primary);
  color: white;
  padding: 50px 0;
  text-align: center;
}

.page-header h1 {
  font-size: 2.2rem;
  margin-bottom: 10px;
}

/* Content Sections */
.content-section {
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
}

.content-section:last-child {
  border-bottom: none;
}

.content-section h2 {
  font-size: 1.6rem;
  margin-bottom: 15px;
  color: var(--text);
}

.content-section p {
  margin-bottom: 15px;
  color: var(--text-light);
}

/* Lists */
.feature-list {
  list-style: none;
  display: grid;
  gap: 15px;
  margin: 20px 0;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 12px;
}

.feature-list svg {
  width: 24px;
  height: 24px;
  color: var(--primary);
  flex-shrink: 0;
}

/* FAQ */
.faq-item {
  background: var(--surface);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.faq-question {
  width: 100%;
  padding: 20px;
  background: none;
  border: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  text-align: left;
}

.faq-question svg {
  width: 20px;
  height: 20px;
  transition: transform 0.3s;
  color: var(--primary);
}

.faq-question.active svg {
  transform: rotate(180deg);
}

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

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

/* Blog */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.blog-card {
  background: var(--surface);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s;
}

.blog-card:hover {
  transform: translateY(-5px);
}

.blog-card-content {
  padding: 25px;
}

.blog-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
  line-height: 1.4;
}

.blog-card p {
  color: var(--text-light);
  font-size: 0.95rem;
  margin-bottom: 15px;
}

.blog-card a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.blog-card a:hover {
  text-decoration: underline;
}

/* Article */
.article-content {
  max-width: 800px;
  margin: 0 auto;
}

.article-content h2 {
  font-size: 1.6rem;
  margin: 30px 0 15px;
  color: var(--text);
}

.article-content p {
  margin-bottom: 15px;
  color: var(--text-light);
}

.article-content ul {
  margin: 20px 0;
  padding-left: 20px;
}

.article-content li {
  margin-bottom: 10px;
  color: var(--text-light);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  margin-bottom: 20px;
}

.back-link:hover {
  text-decoration: underline;
}

/* Form */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

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

/* Utility */
.text-center { text-align: center; }
.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: var(--surface);
  padding: 20px;
  box-shadow: var(--shadow-lg);
  flex-direction: column;
  gap: 15px;
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu a {
  padding: 12px;
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  border-radius: 8px;
  transition: background 0.2s;
}

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

/* Responsive */
@media (max-width: 768px) {
  nav { display: none; }
  .mobile-menu-btn { display: block; }
  .hero h1 { font-size: 2rem; }
  .section-title { font-size: 1.6rem; }
  .card-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
}

@media (max-width: 480px) {
  .container { padding: 0 15px; }
  .hero { padding: 50px 0; }
  .hero h1 { font-size: 1.8rem; }
  .cta-floating { bottom: 15px; right: 15px; }
}

/* Utility classes */
.max-width-600 { max-width: 600px; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mb-30 { margin-bottom: 30px; }
.mt-15 { margin-top: 15px; }
.mb-15 { margin-bottom: 15px; }
.mb-25 { margin-bottom: 25px; }
.mt-40 { margin-top: 40px; }
.m-25-0 { margin: 25px 0; }

.footer-text {
  color: #cbd5e1;
  font-size: 0.95rem;
}

.card .cta-btn {
  margin-top: 15px;
}

.bg-surface {
  background: var(--surface);
}

.cta-section {
  background: var(--bg);
  border-radius: 12px;
  padding: 40px;
}

.info-box {
  background: var(--bg);
  padding: 25px;
  border-radius: 12px;
  margin: 25px 0;
  text-align: center;
}