/* Modern B2B SaaS Dark Theme & Glassmorphism Stylesheet - PdfPulse API */

:root {
  --font-sans: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, Monaco, monospace;

  /* Colors */
  --bg-dark: #070a12;
  --bg-card: rgba(17, 24, 39, 0.65);
  --bg-card-hover: rgba(31, 41, 55, 0.8);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-glow: rgba(99, 102, 241, 0.4);

  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --accent-cyan: #06b6d4;
  --accent-purple: #a855f7;
  --accent-emerald: #10b981;

  --text-main: #f8fafc;
  --text-sub: #94a3b8;
  --text-muted: #64748b;

  --glass-bg: rgba(15, 23, 42, 0.7);
  --glass-border: rgba(255, 255, 255, 0.12);
  --shadow-lg: 0 20px 40px -15px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.25);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
  background: radial-gradient(circle at 50% -20%, rgba(99, 102, 241, 0.15), transparent 70%),
              radial-gradient(circle at 90% 40%, rgba(6, 182, 212, 0.08), transparent 60%),
              radial-gradient(circle at 10% 80%, rgba(168, 85, 247, 0.08), transparent 60%),
              var(--bg-dark);
}

/* Typography Helpers */
.gradient-text {
  background: linear-gradient(135deg, #38bdf8 0%, #818cf8 50%, #c084fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-alt {
  background: linear-gradient(135deg, #34d399 0%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header Navbar */
header.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.4);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-sub);
  font-size: 0.95rem;
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--text-main);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #4f46e5);
  color: #fff;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
  background: linear-gradient(135deg, #6366f1, #4338ca);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-large {
  padding: 0.9rem 2rem;
  font-size: 1.05rem;
}

/* Loading State for Buttons */
.btn.loading {
  opacity: 0.8;
  pointer-events: none;
  position: relative;
}

.btn.loading .btn-text {
  visibility: hidden;
}

.btn.loading::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spinner 0.6s linear infinite;
}

@keyframes spinner {
  to { transform: rotate(360deg); }
}

/* Hero Section */
.hero {
  padding: 6rem 0 4rem;
  text-align: center;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #a5b4fc;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(8px);
}

.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-emerald);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-emerald);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero h1 {
  font-size: 3.75rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.hero p.subtitle {
  font-size: 1.25rem;
  color: var(--text-sub);
  max-width: 680px;
  margin: 0 auto 2.5rem;
  font-weight: 400;
}

.hero-cta {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  max-width: 800px;
  margin: 0 auto;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  backdrop-filter: blur(12px);
}

.stat-item h3 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-main);
}

.stat-item p {
  font-size: 0.85rem;
  color: var(--text-sub);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

/* Sections General */
section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3.5rem;
}

.section-header h2 {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

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

/* Live Code Sandbox / API Preview */
.sandbox-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: stretch;
}

.code-window {
  background: #0d1117;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
}

.code-header {
  background: #161b22;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.window-dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.dot-red { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #27c93f; }

.tab-bar {
  display: flex;
  gap: 0.5rem;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-sub);
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.tab-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
  color: #a5b4fc;
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.copy-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-sub);
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.2s;
}

.copy-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.1);
}

.code-body {
  padding: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: #e6edf3;
  line-height: 1.6;
  overflow-x: auto;
  flex: 1;
}

.code-snippet {
  display: none;
}

.code-snippet.active {
  display: block;
}

/* Syntax Highlighting Mock */
.syn-kw { color: #ff7b72; }
.syn-str { color: #a5d6ff; }
.syn-func { color: #d2a8ff; }
.syn-num { color: #79c0ff; }
.syn-comment { color: #8b949e; font-style: italic; }

/* Sandbox Preview Card */
.preview-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(12px);
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 1.25rem;
}

.preview-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.1);
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
}

.preview-meta {
  font-size: 0.8rem;
  color: var(--text-sub);
}

.pdf-mock {
  background: #ffffff;
  color: #1e293b;
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  font-size: 0.85rem;
}

.pdf-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid #e2e8f0;
  padding-bottom: 0.75rem;
  margin-bottom: 1rem;
}

.pdf-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #0f172a;
}

.pdf-badge {
  background: #e0e7ff;
  color: #4338ca;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}

.pdf-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1rem;
}

.pdf-table th, .pdf-table td {
  text-align: left;
  padding: 0.5rem 0;
  border-bottom: 1px solid #f1f5f9;
}

.pdf-table th {
  color: #64748b;
  font-size: 0.75rem;
  text-transform: uppercase;
}

.pdf-footer-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: #94a3b8;
  border-top: 1px dashed #cbd5e1;
  padding-top: 0.5rem;
  margin-top: 1rem;
}

/* Interactive Playground Section */
.playground-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  backdrop-filter: blur(12px);
}

.playground-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.form-control {
  width: 100%;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: #fff;
  padding: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  outline: none;
  transition: border-color 0.2s;
}

.form-control:focus {
  border-color: var(--primary);
}

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

.playground-output {
  background: #0f172a;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

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

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.3s ease;
  backdrop-filter: blur(12px);
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 0 20px rgba(99, 102, 241, 0.15);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 1.25rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

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

/* Pricing Section */
.pricing-section {
  position: relative;
}

.pricing-wrapper {
  max-width: 520px;
  margin: 0 auto;
}

.pricing-card {
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.8) 0%, rgba(15, 23, 42, 0.9) 100%);
  border: 1px solid var(--border-color-glow);
  border-radius: 24px;
  padding: 3rem 2.5rem;
  position: relative;
  box-shadow: var(--shadow-glow), var(--shadow-lg);
  backdrop-filter: blur(16px);
  text-align: center;
}

.pricing-badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--primary), var(--accent-purple));
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.35rem 1.25rem;
  border-radius: 20px;
  text-transform: uppercase;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.pricing-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.pricing-price {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1;
  margin: 1.5rem 0 0.5rem;
}

.pricing-price span {
  font-size: 1.1rem;
  color: var(--text-sub);
  font-weight: 500;
}

.pricing-limit {
  color: var(--accent-cyan);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 2rem;
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: 2.5rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0;
  color: var(--text-sub);
  font-size: 0.95rem;
}

.pricing-features li svg {
  color: var(--accent-emerald);
  flex-shrink: 0;
}

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

.checkout-btn {
  width: 100%;
  padding: 1rem;
  font-size: 1.1rem;
}

.pricing-guarantee {
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* FAQ Section */
.faq-grid {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.faq-item:hover {
  border-color: rgba(255, 255, 255, 0.2);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 1.05rem;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, margin-top 0.3s ease;
  color: var(--text-sub);
  font-size: 0.95rem;
}

.faq-item.open .faq-answer {
  max-height: 200px;
  margin-top: 0.75rem;
}

.faq-chevron {
  transition: transform 0.3s ease;
}

.faq-item.open .faq-chevron {
  transform: rotate(180deg);
}

/* Footer */
footer {
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem;
  background: rgba(7, 10, 18, 0.9);
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-brand {
  max-width: 320px;
}

.footer-brand p {
  color: var(--text-sub);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  color: var(--text-sub);
  font-size: 0.9rem;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.status-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-sub);
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: #1e293b;
  color: #fff;
  border: 1px solid var(--accent-indigo);
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  font-size: 0.9rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1000;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* Responsive Styles */
@media (max-width: 992px) {
  .hero h1 {
    font-size: 2.75rem;
  }

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

  .playground-controls {
    grid-template-columns: 1fr;
  }
}

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

  .hero {
    padding: 4rem 0 2rem;
  }

  .hero h1 {
    font-size: 2.25rem;
  }

  .hero-stats {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .pricing-card {
    padding: 2rem 1.5rem;
  }

  .footer-grid {
    flex-direction: column;
    align-items: flex-start;
  }
}