/* =============================================================================
   FileChatSend Website Styles
   Consolidated CSS for all pages
   ============================================================================= */

/* =============================================================================
   Reset & Variables
   ============================================================================= */

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

:root {
  --bg: #0a0a0a;
  --bg-secondary: #111111;
  --bg-card: #1a1a1a;
  --text: #ffffff;
  --text-secondary: #a0a0a0;
  --text-muted: #666666;
  --accent: #00b8a9;
  --accent-hover: #00d4c4;
  --accent-glow: rgba(0, 184, 169, 0.15);
  --border: #222222;
  --gradient-1: linear-gradient(135deg, #00b8a9 0%, #00d4c4 100%);
}

/* =============================================================================
   Base Typography & Body
   ============================================================================= */

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  text-decoration: underline;
}

/* =============================================================================
   Navigation
   ============================================================================= */

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 1rem 2rem;
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0;
}

.logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--text);
  text-decoration: none;
}

/* =============================================================================
   Buttons
   ============================================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-1);
  color: white;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px var(--accent-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-card);
  border-color: var(--text-secondary);
}

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

/* =============================================================================
   Footer
   ============================================================================= */

footer {
  border-top: 1px solid var(--border);
  padding: 3rem 2rem;
  text-align: center;
}

footer p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

footer a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

footer a:hover {
  color: var(--text);
  text-decoration: none;
}

/* =============================================================================
   Common Section Styles
   ============================================================================= */

.section {
  padding: 6rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* =============================================================================
   Content Pages (Privacy, Terms, Download)
   ============================================================================= */

.content {
  max-width: 800px;
  margin: 0 auto;
  padding: 8rem 2rem 4rem;
}

.content h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.content h2 {
  font-size: 1.5rem;
  margin-top: 3rem;
  margin-bottom: 1rem;
  color: var(--text);
}

.content h3 {
  font-size: 1.1rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--text);
}

.content p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.content ul,
.content ol {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

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

.last-updated {
  color: var(--text-muted);
  margin-bottom: 3rem;
  font-size: 0.9rem;
}

/* Tables (Privacy page) */
.content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
}

.content th,
.content td {
  text-align: left;
  padding: 0.75rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

.content th {
  color: var(--text);
  font-weight: 600;
}

/* Highlight box (Privacy page) */
.highlight-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  margin: 1.5rem 0;
}

.highlight-box p {
  margin-bottom: 0;
}

/* =============================================================================
   Index Page - Hero
   ============================================================================= */

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 8rem 2rem 4rem;
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.hero h1 .highlight {
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 2.5rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 1rem;
}

.hero-note {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* =============================================================================
   Index Page - App Preview Window
   ============================================================================= */

.hero-visual {
  margin-top: 4rem;
  width: 100%;
  max-width: 800px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
}

.window-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

.window-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

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

.window-content {
  padding: 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  min-height: 320px;
}

.file-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.file-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  background: var(--bg);
  border-radius: 10px;
  border: 1px solid var(--border);
}

.file-icon {
  width: 36px;
  height: 36px;
  background: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: white;
  font-weight: 700;
}

.file-name {
  font-size: 0.9rem;
  font-weight: 500;
}

.file-size {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.chat-preview {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.chat-bubble {
  padding: 0.875rem 1rem;
  border-radius: 14px;
  font-size: 0.9rem;
  line-height: 1.5;
  max-width: 95%;
}

.chat-bubble.user {
  background: var(--accent);
  color: white;
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}

.chat-bubble.ai {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

/* =============================================================================
   Index Page - Access Code Section
   ============================================================================= */

.code-section {
  background: var(--bg-secondary);
  padding: 5rem 2rem;
  text-align: center;
}

.code-section h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.access-code {
  font-family: 'SF Mono', Monaco, 'Courier New', monospace;
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--accent);
  background: var(--bg);
  padding: 1.25rem 2.5rem;
  border-radius: 16px;
  display: inline-block;
  border: 2px dashed var(--border);
  margin: 2rem 0;
  box-shadow: 0 0 40px var(--accent-glow);
}

.code-section p {
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

/* =============================================================================
   Index Page - Steps (How it Works)
   ============================================================================= */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 20%;
  right: 20%;
  height: 2px;
  background: var(--border);
  z-index: 0;
}

.step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-number {
  width: 56px;
  height: 56px;
  background: var(--gradient-1);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 1.5rem;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.step h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

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

/* =============================================================================
   Index Page - Use Cases
   ============================================================================= */

.use-cases {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.use-case {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  transition: border-color 0.2s;
}

.use-case:hover {
  border-color: var(--accent);
}

.use-case-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.use-case h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.use-case p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* =============================================================================
   Common Pricing Styles (Index & Pro pages)
   ============================================================================= */

.pricing-section {
  background: var(--bg-secondary);
  padding: 6rem 2rem;
}

.pricing-grid {
  display: grid;
  gap: 2rem;
  max-width: 800px;
  margin: 0 auto;
}

/* Index page: 2-column pricing */
.pricing-grid.two-col {
  grid-template-columns: repeat(2, 1fr);
}

/* Pro page: 3-column pricing */
.pricing-grid.three-col {
  grid-template-columns: repeat(3, 1fr);
  max-width: 1000px;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2.5rem;
  transition: transform 0.2s, border-color 0.2s;
  display: flex;
  flex-direction: column;
}

.pricing-card:hover {
  transform: translateY(-4px);
}

.pricing-card.featured {
  border-color: var(--accent);
  position: relative;
}

.pricing-card.featured::before {
  content: 'Most Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-1);
  color: white;
  padding: 0.35rem 1.25rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
}

.pricing-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.pricing-card .price {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  letter-spacing: -0.02em;
}

.pricing-card .price span {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.pricing-card .description {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-size: 0.9rem;
}

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

.pricing-card li {
  padding: 0.6rem 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.pricing-card li::before {
  content: '\2713';
  color: var(--accent);
  font-weight: 600;
  flex-shrink: 0;
}

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

.pricing-note {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 2rem;
}

.pricing-note a {
  color: var(--accent);
}

/* =============================================================================
   Common CTA Section
   ============================================================================= */

.cta-section {
  padding: 6rem 2rem;
  text-align: center;
}

.cta-section h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.cta-section p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-size: 1.1rem;
}

.cta-note {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* =============================================================================
   Pro Page - Hero (Left-aligned)
   ============================================================================= */

.hero-pro {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8rem 2rem 4rem;
  max-width: 1100px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 2rem;
  width: fit-content;
}

.hero-pro h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  max-width: 700px;
  letter-spacing: -0.02em;
}

.hero-pro p.lead {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 2.5rem;
}

.hero-pro .hero-buttons {
  margin-bottom: 3rem;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.stat {
  text-align: left;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

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

/* =============================================================================
   Pro Page - Problem/Solution Section
   ============================================================================= */

.problem-section {
  padding: 6rem 2rem;
  background: var(--bg-secondary);
}

.problem-container {
  max-width: 900px;
  margin: 0 auto;
}

.problem-section h2 {
  font-size: 2rem;
  margin-bottom: 3rem;
  text-align: center;
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.problem-col h3 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
  color: var(--text-muted);
}

.problem-col.before h3 {
  color: #ff6b6b;
}

.problem-col.after h3 {
  color: var(--accent);
}

.problem-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.25rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.problem-item .icon {
  flex-shrink: 0;
  font-size: 1.25rem;
}

/* =============================================================================
   Pro Page - Audience Section
   ============================================================================= */

.audience-section {
  padding: 6rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.audience-section h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  text-align: center;
}

.audience-section > p {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 3rem;
}

.audience-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.audience-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  transition: border-color 0.2s;
}

.audience-card:hover {
  border-color: var(--accent);
}

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

.audience-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.audience-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.audience-card .example {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
}

/* =============================================================================
   Pro Page - Features Section
   ============================================================================= */

.features-section {
  padding: 6rem 2rem;
  background: var(--bg-secondary);
}

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

.features-section h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  text-align: center;
}

.features-section > p,
.features-container > p {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
}

.feature-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.feature-card h3 .icon {
  color: var(--accent);
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* =============================================================================
   Pro Page - Testimonials
   ============================================================================= */

.proof-section {
  padding: 6rem 2rem;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.proof-section h2 {
  font-size: 2rem;
  margin-bottom: 3rem;
}

.testimonial {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 3rem;
  margin-bottom: 2rem;
}

.testimonial blockquote {
  font-size: 1.25rem;
  font-style: italic;
  margin-bottom: 1.5rem;
  color: var(--text);
}

.testimonial-author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 1.1rem;
}

.testimonial-info {
  text-align: left;
}

.testimonial-name {
  font-weight: 600;
}

.testimonial-role {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* =============================================================================
   Pro Page - ROI Calculator
   ============================================================================= */

.roi-section {
  padding: 6rem 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.roi-section h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  text-align: center;
}

.roi-section > p {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 3rem;
}

.roi-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 3rem;
}

.roi-row {
  display: flex;
  justify-content: space-between;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}

.roi-row:last-child {
  border-bottom: none;
  padding-top: 1.5rem;
  font-weight: 600;
  font-size: 1.1rem;
}

.roi-row.savings {
  color: var(--accent);
}

/* =============================================================================
   Pro Page - FAQ
   ============================================================================= */

.faq-section {
  padding: 6rem 2rem;
  background: var(--bg-secondary);
}

.faq-container {
  max-width: 700px;
  margin: 0 auto;
}

.faq-section h2 {
  font-size: 2rem;
  margin-bottom: 3rem;
  text-align: center;
}

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 0;
}

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

.faq-question {
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.faq-answer {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* =============================================================================
   Download Page
   ============================================================================= */

.content.download {
  max-width: 700px;
  padding: 10rem 2rem 4rem;
  text-align: center;
}

.content.download h1 {
  margin-bottom: 1rem;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 3rem;
}

.download-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.download-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  transition: border-color 0.2s, transform 0.2s;
}

.download-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.download-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.download-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

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

.download-card .btn {
  width: 100%;
  justify-content: center;
  padding: 0.875rem 1.75rem;
  font-size: 0.95rem;
}

.version-info {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 3rem;
}

.version-info a {
  color: var(--text-secondary);
  text-decoration: none;
}

.version-info a:hover {
  color: var(--accent);
}

.requirements {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 1.5rem;
  text-align: left;
}

.requirements h4 {
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
  color: var(--text-secondary);
}

.requirements ul {
  list-style: none;
  color: var(--text-muted);
  font-size: 0.85rem;
  padding-left: 0;
}

.requirements li {
  padding: 0.25rem 0;
}

.requirements li::before {
  content: "\2022";
  color: var(--accent);
  margin-right: 0.5rem;
}

/* Download page footer needs margin-top */
.download-footer {
  margin-top: 4rem;
}

/* =============================================================================
   Responsive Design
   ============================================================================= */

@media (max-width: 900px) {
  .pricing-grid.two-col,
  .pricing-grid.three-col {
    grid-template-columns: 1fr;
    max-width: 400px;
  }

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

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

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

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

  .window-content {
    grid-template-columns: 1fr;
  }

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

  .steps::before {
    display: none;
  }

  .use-cases {
    grid-template-columns: 1fr;
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
    max-width: 300px;
  }

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

  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
  }
}

@media (max-width: 600px) {
  .download-cards {
    grid-template-columns: 1fr;
  }
}