/* ===== CSS Variables ===== */
:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --secondary: #ec4899;
  --accent: #06b6d4;
  --dark: #1e1b4b;
  --light: #f8fafc;
  --gray: #64748b;
  --border: #e2e8f0;
  --success: #10b981;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--dark);
  background: var(--light);
  overflow-x: hidden;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

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

button {
  cursor: pointer;
  font-family: inherit;
}

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

.section {
  padding: 80px 0;
}

.section-alt {
  background: white;
  border-radius: var(--radius);
  margin: 40px 0;
  padding: 60px 40px;
  box-shadow: var(--shadow);
}

/* ===== Header & Navigation ===== */
.header {
  background: white;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 1000;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark);
}

.logo img {
  width: 40px;
  height: 40px;
}

.logo:hover {
  color: var(--dark);
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-weight: 500;
  color: var(--gray);
  transition: var(--transition);
  padding: 8px 0;
  border-bottom: 2px solid transparent;
}

.nav-link:hover {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  padding: 8px;
}

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

/* ===== Hero Section ===== */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  padding: 120px 0 100px;
  text-align: center;
  border-radius: 0 0 var(--radius) var(--radius);
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 24px;
  line-height: 1.2;
}

.hero p {
  font-size: 1.25rem;
  max-width: 700px;
  margin: 0 auto 40px;
  opacity: 0.95;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 60px;
  margin-top: 60px;
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  display: block;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.85;
}

/* ===== Features ===== */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin: 60px 0;
}

.feature-card {
  background: white;
  padding: 40px 30px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.feature-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon svg {
  width: 30px;
  height: 30px;
  stroke: white;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--dark);
}

.feature-card p {
  color: var(--gray);
  font-size: 0.95rem;
}

/* ===== CTA Button ===== */
.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  color: white;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border: none;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--secondary) 100%);
  color: white;
}

.cta-btn:active {
  transform: translateY(0);
}

.cta-btn svg {
  width: 18px;
  height: 18px;
}

.cta-floating {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 999;
  padding: 16px 28px;
  font-size: 1.1rem;
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4); }
  50% { box-shadow: 0 8px 35px rgba(99, 102, 241, 0.6); }
}

/* ===== How It Works ===== */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin: 60px 0;
}

.step-card {
  text-align: center;
  padding: 30px 20px;
}

.step-number {
  width: 50px;
  height: 50px;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 auto 20px;
}

.step-card h3 {
  margin-bottom: 12px;
  font-size: 1.1rem;
}

.step-card p {
  color: var(--gray);
  font-size: 0.95rem;
}

/* ===== Blog Grid ===== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
  margin: 40px 0;
}

.blog-card {
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.blog-card-content {
  padding: 24px;
}

.blog-card h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
  line-height: 1.4;
}

.blog-card p {
  color: var(--gray);
  font-size: 0.9rem;
  margin-bottom: 20px;
}

.blog-link {
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.blog-link svg {
  width: 16px;
  height: 16px;
}

/* ===== FAQ Accordion ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: white;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: white;
  border: none;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: var(--transition);
}

.faq-question:hover {
  background: var(--light);
}

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

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

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

.faq-answer-content {
  padding: 0 24px 24px;
  color: var(--gray);
  line-height: 1.7;
}

/* ===== Forms ===== */
.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--dark);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  transition: var(--transition);
  background: white;
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  transition: var(--transition);
  cursor: pointer;
}

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

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

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

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

/* ===== Footer ===== */
.footer {
  background: var(--dark);
  color: white;
  padding: 60px 0 30px;
  margin-top: 80px;
}

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

.footer-col h4 {
  font-size: 1.1rem;
  margin-bottom: 20px;
  color: white;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition);
}

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

.footer-desc {
  color: rgba(255, 255, 255, 0.7);
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  margin-bottom: 20px;
  color: var(--dark);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: 16px;
}

.text-center { text-align: center; }
.text-muted { color: var(--gray); }

/* ===== Spacing Utilities ===== */
.mt-4 { margin-top: 16px; }
.mt-8 { margin-top: 32px; }
.mb-4 { margin-bottom: 16px; }
.mb-8 { margin-bottom: 32px; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }

  .hero p {
    font-size: 1.1rem;
  }

  .nav {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 20px;
    box-shadow: var(--shadow-lg);
    gap: 16px;
  }

  .nav.active {
    display: flex;
  }

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    gap: 30px;
  }

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

  .section {
    padding: 60px 0;
  }

  .section-alt {
    padding: 40px 20px;
  }

  .cta-floating {
    bottom: 20px;
    right: 20px;
    padding: 14px 24px;
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }

  .container {
    padding: 0 16px;
  }

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

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

.text-left { text-align: left; }
.text-right { text-align: right; }
.w-100 { width: 100%; }
.max-w-600 { max-width: 600px; }
.max-w-700 { max-width: 700px; }
.max-w-800 { max-width: 800px; }
.mx-auto { margin-left: auto; margin-right: auto; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-8 { gap: 8px; }
.gap-10 { gap: 10px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-20 { gap: 20px; }
.gap-24 { gap: 24px; }
.gap-30 { gap: 30px; }
.gap-40 { gap: 40px; }
.gap-60 { gap: 60px; }
.flex-wrap { flex-wrap: wrap; }

.grid { display: grid; }
.grid-cols-1 { grid-template-columns: 1fr; }
.grid-cols-2 { grid-template-columns: 1fr 1fr; }
.gap-y-4 { row-gap: 16px; }
.gap-y-8 { row-gap: 32px; }

.m-0 { margin: 0; }
.mt-0 { margin-top: 0; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-5 { margin-top: 20px; }
.mt-6 { margin-top: 24px; }
.mt-7 { margin-top: 28px; }
.mt-9 { margin-top: 36px; }
.mt-10 { margin-top: 40px; }
.mt-12 { margin-top: 48px; }
.mt-15 { margin-top: 60px; }
.mt-20 { margin-top: 80px; }
.mt-30 { margin-top: 30px; }
.mt-50 { margin-top: 50px; }

.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-5 { margin-bottom: 20px; }
.mb-6 { margin-bottom: 24px; }
.mb-7 { margin-bottom: 28px; }
.mb-9 { margin-bottom: 36px; }
.mb-10 { margin-bottom: 40px; }
.mb-12 { margin-bottom: 48px; }
.mb-15 { margin-bottom: 60px; }
.mb-20 { margin-bottom: 80px; }
.mb-30 { margin-bottom: 30px; }
.mb-50 { margin-bottom: 50px; }
.mb-10px { margin-bottom: 10px; }

.ml-0 { margin-left: 0; }
.ml-2 { margin-left: 8px; }
.ml-4 { margin-left: 16px; }
.ml-5 { margin-left: 20px; }
.ml-auto { margin-left: auto; }

.mr-0 { margin-right: 0; }
.mr-2 { margin-right: 8px; }
.mr-4 { margin-right: 16px; }

.my-5 { margin-top: 20px; margin-bottom: 20px; }

.p-0 { padding: 0; }
.p-2 { padding: 8px; }
.p-3 { padding: 12px; }
.p-4 { padding: 16px; }
.p-5 { padding: 20px; }
.p-6 { padding: 24px; }
.p-8 { padding: 32px; }
.p-10 { padding: 40px; }
.p-12 { padding: 48px; }

.px-0 { padding-left: 0; padding-right: 0; }
.px-2 { padding-left: 8px; padding-right: 8px; }
.px-4 { padding-left: 16px; padding-right: 16px; }
.px-6 { padding-left: 24px; padding-right: 24px; }
.px-8 { padding-left: 32px; padding-right: 32px; }
.px-40 { padding-left: 40px; padding-right: 40px; }

.py-0 { padding-top: 0; padding-bottom: 0; }
.py-2 { padding-top: 8px; padding-bottom: 8px; }
.py-4 { padding-top: 16px; padding-bottom: 16px; }
.py-6 { padding-top: 24px; padding-bottom: 24px; }
.py-8 { padding-top: 32px; padding-bottom: 32px; }
.py-10 { padding-top: 40px; padding-bottom: 40px; }
.py-12 { padding-top: 48px; padding-bottom: 48px; }
.pt-30 { padding-top: 30px; }

.fs-85rem { font-size: 0.85rem; }
.fs-09rem { font-size: 0.9rem; }
.fs-1 { font-size: 1rem; }
.fs-1-1 { font-size: 1.1rem; }
.fs-1-15 { font-size: 1.15rem; }
.fs-1-2 { font-size: 1.2rem; }
.fs-1-25 { font-size: 1.25rem; }
.fs-1-5 { font-size: 1.5rem; }
.fs-2 { font-size: 2rem; }
.fs-2-5 { font-size: 2.5rem; }
.fs-3-5 { font-size: 3.5rem; }

.fw-400 { font-weight: 400; }
.fw-500 { font-weight: 500; }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.fw-800 { font-weight: 800; }

.fs-italic { font-style: italic; }
.fs-normal { font-style: normal; }

.text-primary { color: var(--primary); }
.text-secondary { color: var(--secondary); }
.text-accent { color: var(--accent); }
.text-dark { color: var(--dark); }
.text-light { color: var(--light); }
.text-gray { color: var(--gray); }
.text-muted { color: var(--gray); }
.text-white { color: white; }
.text-inherit { color: inherit; }

.bg-primary { background: var(--primary); }
.bg-primary-dark { background: var(--primary-dark); }
.bg-secondary { background: var(--secondary); }
.bg-accent { background: var(--accent); }
.bg-dark { background: var(--dark); }
.bg-light { background: var(--light); }
.bg-white { background: white; }
.bg-gradient { background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%); }

.border { border: 1px solid var(--border); }
.border-none { border: none; }
.rounded { border-radius: var(--radius); }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-50pct { border-radius: 50%; }
.rounded-none { border-radius: 0; }

.list-inside { list-style-position: inside; }
.list-outside { list-style-position: outside; }
.list-none { list-style: none; }
.lh-1 { line-height: 1; }
.lh-1-5 { line-height: 1.5; }
.lh-1-6 { line-height: 1.6; }
.lh-1-8 { line-height: 1.8; }
.lh-2 { line-height: 2; }

.avatar {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
}

.border-top { border-top: 1px solid var(--border); }
.border-top-none { border-top: none; }

.shadow { box-shadow: var(--shadow); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-none { box-shadow: none; }

.overflow-hidden { overflow: hidden; }

.cursor-pointer { cursor: pointer; }

.inline-flex { display: inline-flex; }

.h-auto { height: auto; }
.w-auto { width: auto; }

.fixed { position: fixed; }
.bottom-0 { bottom: 0; }
.right-0 { right: 0; }
.z-999 { z-index: 999; }
.z-1000 { z-index: 1000; }

.transition { transition: var(--transition); }

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

.no-underline { text-decoration: none; }

.btn-lg {
  font-size: 1.1rem;
  padding: 16px 40px;
}

.mt-10px { margin-top: 10px; }