/* ========================================
   CSS Variables & Reset
   ======================================== */
:root {
  /* Colors */
  --color-primary: #f97316;
  --color-primary-dark: #ea580c;
  --color-primary-light: #fb923c;
  --color-secondary: #1e293b;
  --color-secondary-dark: #0f172a;
  
  --color-text: #1e293b;
  --color-text-light: #64748b;
  --color-text-muted: #94a3b8;
  
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-bg-dark: #1e293b;
  
  --color-border: #e2e8f0;
  --color-success: #10b981;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 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);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-family);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* ========================================
   Layout
   ======================================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 0.75rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  box-shadow: 0 4px 14px 0 rgba(249, 115, 22, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px 0 rgba(249, 115, 22, 0.5);
}

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

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

.btn-ghost {
  color: var(--color-text);
  background: transparent;
}

.btn-ghost:hover {
  background: var(--color-bg-alt);
}

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

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1rem;
}

.btn-block {
  width: 100%;
}

/* ========================================
   Header & Navigation
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo img {
  height: 40px;
  width: auto;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-light);
  transition: color var(--transition-fast);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  position: relative;
  padding: 160px 0 100px;
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.hero-badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: var(--spacing-lg);
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
}

.hero-description {
  font-size: 1.125rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-xl);
  max-width: 500px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-2xl);
}

.hero-stats {
  display: flex;
  gap: var(--spacing-2xl);
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-primary);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Hero Mockup */
.hero-mockup {
  background: var(--color-secondary);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
}

.mockup-header {
  display: flex;
  gap: 6px;
  padding: 12px 16px;
  background: var(--color-secondary-dark);
}

.mockup-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ef4444;
}

.mockup-dot:nth-child(2) {
  background: #eab308;
}

.mockup-dot:nth-child(3) {
  background: #22c55e;
}

.mockup-content {
  display: flex;
  min-height: 300px;
}

.mockup-sidebar {
  width: 60px;
  background: var(--color-secondary-dark);
  padding: 16px 8px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mockup-logo {
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  border-radius: var(--radius-md);
  margin-bottom: 8px;
}

.mockup-menu-item {
  width: 44px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
}

.mockup-menu-item.active {
  background: var(--color-primary);
}

.mockup-main {
  flex: 1;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mockup-card {
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  height: 80px;
}

.mockup-card.small {
  height: 60px;
  width: 70%;
}

/* Hero Background */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.hero-gradient {
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(249, 115, 22, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}

/* ========================================
   Sections Common
   ======================================== */
section {
  padding: var(--spacing-3xl) 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-3xl);
}

.section-badge {
  display: inline-block;
  padding: 0.375rem 0.875rem;
  background: rgba(249, 115, 22, 0.1);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: var(--spacing-md);
}

.section-description {
  font-size: 1.125rem;
  color: var(--color-text-light);
}

/* ========================================
   Features Section
   ======================================== */
.features {
  background: var(--color-bg-alt);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.feature-card {
  background: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(249, 115, 22, 0.1);
  border-radius: var(--radius-lg);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-lg);
}

.feature-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.feature-description {
  color: var(--color-text-light);
  font-size: 0.9375rem;
}

/* ========================================
   Benefits Section
   ======================================== */
.benefits-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.benefits-text .section-badge {
  margin-bottom: var(--spacing-md);
}

.benefits-text .section-title {
  text-align: left;
  margin-bottom: var(--spacing-xl);
}

.benefits-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.benefit-item {
  display: flex;
  gap: var(--spacing-md);
}

.benefit-check {
  flex-shrink: 0;
  margin-top: 2px;
}

.benefit-item strong {
  display: block;
  margin-bottom: var(--spacing-xs);
}

.benefit-item p {
  color: var(--color-text-light);
  font-size: 0.9375rem;
}

/* Benefits Card */
.benefits-card {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
  color: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

.benefits-card-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.benefits-card-icon {
  font-size: 2.5rem;
}

.benefits-card-header h4 {
  color: white;
  font-size: 1.25rem;
  margin-bottom: 2px;
}

.benefits-card-header span {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

.benefits-card-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}

.benefits-stat {
  background: rgba(255, 255, 255, 0.1);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  text-align: center;
}

.benefits-stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.benefits-stat-label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
}

/* ========================================
   Testimonials Section
   ======================================== */
.testimonials {
  background: var(--color-bg-alt);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.testimonial-card {
  background: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
}

.testimonial-rating {
  margin-bottom: var(--spacing-md);
}

.testimonial-quote {
  font-size: 1rem;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: var(--spacing-lg);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}

.testimonial-author strong {
  display: block;
  font-size: 0.9375rem;
}

.testimonial-author span {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* ========================================
   Pricing Section
   ======================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
  align-items: start;
}

.pricing-card {
  background: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  border: 2px solid var(--color-border);
  position: relative;
}

.pricing-card.featured {
  border-color: var(--color-primary);
  transform: scale(1.05);
  box-shadow: var(--shadow-xl);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  padding: 0.375rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}

.pricing-header {
  text-align: center;
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--spacing-xl);
}

.pricing-name {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
}

.pricing-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
  margin-bottom: var(--spacing-sm);
}

.price-currency {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-light);
}

.price-value {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
}

.price-period {
  font-size: 1rem;
  color: var(--color-text-muted);
}

.pricing-description {
  color: var(--color-text-light);
  font-size: 0.9375rem;
}

.pricing-features {
  margin-bottom: var(--spacing-xl);
}

.pricing-features li {
  padding: var(--spacing-sm) 0;
  padding-left: 28px;
  position: relative;
  color: var(--color-text-light);
}

.pricing-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 600;
}

/* ========================================
   CTA Section
   ======================================== */
.cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  text-align: center;
}

.cta-content {
  max-width: 700px;
  margin: 0 auto;
}

.cta-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  color: white;
  margin-bottom: var(--spacing-md);
}

.cta-description {
  font-size: 1.125rem;
  opacity: 0.9;
  margin-bottom: var(--spacing-xl);
}

/* ========================================
   Contact Section
   ======================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--spacing-3xl);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.contact-icon {
  font-size: 1.5rem;
}

.contact-item h4 {
  font-size: 1rem;
  margin-bottom: var(--spacing-xs);
}

.contact-item a,
.contact-item span {
  color: var(--color-text-light);
}

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

/* Contact Form */
.contact-form {
  background: var(--color-bg-alt);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: white;
  transition: border-color var(--transition-fast);
}

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

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

/* ========================================
   Footer
   ======================================== */
.footer {
  background: var(--color-secondary);
  color: white;
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: var(--spacing-3xl);
  padding-bottom: var(--spacing-2xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: var(--spacing-xl);
}

.footer-brand img {
  height: 36px;
  margin-bottom: var(--spacing-md);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--spacing-lg);
}

.footer-social {
  display: flex;
  gap: var(--spacing-md);
}

.footer-social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  color: white;
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--color-primary);
  transform: translateY(-2px);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.footer-column h4 {
  color: white;
  font-size: 1rem;
  margin-bottom: var(--spacing-lg);
}

.footer-column ul {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-column a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-description {
    max-width: 100%;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .hero-image {
    display: none;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .benefits-content {
    grid-template-columns: 1fr;
  }
  
  .benefits-text .section-title {
    text-align: center;
  }
  
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }
  
  .pricing-card.featured {
    transform: none;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-social {
    justify-content: center;
  }
  
  .footer-links {
    grid-template-columns: repeat(3, 1fr);
    text-align: left;
  }
}

@media (max-width: 768px) {
  .nav-menu,
  .nav-actions {
    display: none;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .nav-menu.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }
  
  .nav-actions.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: calc(100% + 200px);
    left: 0;
    right: 0;
    background: white;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
  }
  
  .hero {
    padding: 120px 0 60px;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-lg);
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-links {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

/* Mobile Navigation Active State */
.nav-menu.active,
.nav-actions.active {
  display: flex;
}

.mobile-nav-container {
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: white;
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-lg);
  display: none;
  flex-direction: column;
  gap: var(--spacing-lg);
  z-index: 999;
}

.mobile-nav-container.active {
  display: flex;
}

.mobile-nav-container .nav-menu {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: var(--spacing-md);
}

.mobile-nav-container .nav-link {
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav-container .nav-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

/* Animation Classes */
.fade-in {
  animation: fadeIn 0.6s ease forwards;
}

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

/* Scroll animations */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}