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

:root {
  /* Modern finance palette */
  --primary: #0F766E;      /* Modern teal-green */
  --secondary: #F59E0B;    /* Warm gold */
  --background: #FAFBFC;   /* Crisp white */
  --background-alt: #F0FDF4; /* Subtle green tint */
  --text: #0F172A;         /* Rich slate */
  --text-light: #475569;   /* Medium slate */
  --accent: #10B981;       /* Fresh emerald */
  
  /* Financial colors */
  --success: #22C55E;
  --warning: #F59E0B;
  --error: #EF4444;
  --info: #0EA5E9;
  --premium: #EAB308;
  
  /* Slate scale */
  --slate-50: #F8FAFC;
  --slate-100: #F1F5F9;
  --slate-200: #E2E8F0;
  --slate-300: #CBD5E1;
  --slate-400: #94A3B8;
  --slate-500: #64748B;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1E293B;
  --slate-900: #0F172A;
  
  /* UI colors */
  --white: #FFFFFF;
  --overlay: rgba(15, 23, 42, 0.5);
  --overlay-light: rgba(15, 23, 42, 0.1);
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow: 0 2px 8px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.12);
  --shadow-lg: 0 8px 24px rgba(15, 23, 42, 0.16);
  --shadow-xl: 0 16px 48px rgba(15, 23, 42, 0.24);
  
  /* Typography */
  --font-primary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-secondary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-monospace: 'JetBrains Mono', 'Courier New', monospace;
  
  /* Transitions */
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

html, body { height: 100%; }
body { 
  font-family: var(--font-secondary); 
  background: linear-gradient(180deg, var(--background) 0%, var(--slate-50) 100%);
  color: var(--text); 
  line-height: 1.625;
  font-weight: 400;
  letter-spacing: 0.01em;
  min-height: 100vh;
}

h1, h2, h3, h4 { 
  font-family: var(--font-primary); 
  font-weight: 600; 
  color: var(--text);
  letter-spacing: -0.02em;
  line-height: 1.3;
}
h1 { font-size: 3rem; font-weight: 700; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.125rem; font-weight: 500; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* Header */
.header { 
  position: sticky; 
  top: 0; 
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  z-index: 50; 
  box-shadow: var(--shadow);
  transition: all var(--transition);
}
.nav-wrapper { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; }
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; transition: transform var(--transition); }
.logo:hover { transform: translateY(-2px); }
.logo-img { height: 40px; width: auto; }
.logo-text { 
  font-family: var(--font-primary); 
  font-size: 1.375rem; 
  font-weight: 600; 
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-menu { display: flex; gap: 24px; }
.nav-link { 
  text-decoration: none; 
  color: var(--slate-600); 
  font-weight: 500; 
  padding: 10px 20px; 
  border-radius: 25px; 
  transition: all var(--transition);
  position: relative;
}
.nav-link::before {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
  transition: width var(--transition), left var(--transition);
}
.nav-link:hover { 
  background: linear-gradient(135deg, var(--slate-100) 0%, var(--slate-50) 100%);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.nav-link:hover::before {
  width: 60%;
  left: 20%;
}
.mobile-menu-btn { display: none; flex-direction: column; gap: 4px; background: transparent; border: 0; }
.hamburger { width: 24px; height: 2px; background: var(--gray-700); }

/* Hero */
.hero { 
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: var(--white); 
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 80%, rgba(16, 185, 129, 0.3) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(245, 158, 11, 0.2) 0%, transparent 50%),
              radial-gradient(circle at 40% 40%, rgba(14, 165, 233, 0.1) 0%, transparent 50%);
  animation: meshFloat 20s ease-in-out infinite;
}
@keyframes meshFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-20px, -20px) scale(1.1); }
  66% { transform: translate(20px, -10px) scale(0.9); }
}
.hero-content { 
  text-align: center; 
  max-width: 800px; 
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.hero-title { 
  margin-bottom: 16px;
  animation: fadeInUp 0.6s ease;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}
.hero-subtitle { 
  opacity: .95; 
  margin-bottom: 32px; 
  font-size: 1.25rem;
  font-weight: 400;
  animation: fadeInUp 0.8s ease;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-cta { display: flex; align-items: center; justify-content: center; gap: 12px; }

/* Buttons */
.btn { 
  display: inline-flex; 
  align-items: center; 
  gap: 10px; 
  padding: 14px 28px; 
  border-radius: 30px; 
  border: 2px solid transparent; 
  font-weight: 500;
  font-family: var(--font-primary);
  cursor: pointer; 
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  letter-spacing: 0.02em;
}
.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}
.btn:hover::before {
  width: 300px;
  height: 300px;
}
.btn svg { stroke: currentColor; }
.btn-primary { 
  background: linear-gradient(135deg, var(--secondary) 0%, var(--premium) 100%);
  color: var(--white); 
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}
.btn-primary:hover { 
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
}
.btn-secondary { 
  background: rgba(255, 255, 255, 0.95);
  color: var(--primary); 
  border-color: var(--primary);
  box-shadow: var(--shadow);
}
.btn-secondary:hover { 
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: var(--white);
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(15, 118, 110, 0.3);
}
.text-link { 
  color: var(--primary); 
  font-weight: 600; 
  text-decoration: none;
  position: relative;
  transition: color var(--transition);
}
.text-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}
.text-link:hover { color: var(--accent); }
.text-link:hover::after { width: 100%; }

/* Sections */
.section { padding: 80px 0; }
.section.alt { 
  background: linear-gradient(180deg, var(--white) 0%, var(--slate-50) 100%);
  position: relative;
}
.section.alt::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at top left, rgba(15, 118, 110, 0.05) 0%, transparent 40%),
              radial-gradient(ellipse at bottom right, rgba(245, 158, 11, 0.05) 0%, transparent 40%);
  pointer-events: none;
}
.section-head { 
  text-align: center; 
  margin-bottom: 48px;
  animation: fadeInUp 0.6s ease;
}
.section-head p { 
  color: var(--slate-600);
  font-size: 1.125rem;
  margin-top: 12px;
  line-height: 1.7;
}

/* Cards (Products) */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card { 
  background: var(--white); 
  border-radius: 20px; 
  padding: 28px; 
  box-shadow: var(--shadow-md);
  display: flex; 
  flex-direction: column; 
  gap: 16px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 50%, var(--secondary) 100%);
  transform: translateX(-100%);
  transition: transform var(--transition-slow);
}
.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}
.card:hover::before {
  transform: translateX(0);
}
.card-icon { 
  width: 56px; 
  height: 56px; 
  display: grid; 
  place-items: center; 
  background: linear-gradient(135deg, rgba(15, 118, 110, 0.1) 0%, rgba(16, 185, 129, 0.1) 100%);
  color: var(--primary); 
  border-radius: 16px;
  transition: all var(--transition);
}
.card:hover .card-icon {
  transform: scale(1.1) rotate(5deg);
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: var(--white);
}
.card h3 { margin-top: 8px; color: var(--slate-800); }
.card p { color: var(--slate-600); line-height: 1.7; }
.card-actions { display: flex; align-items: center; gap: 16px; margin-top: auto; }

/* Pricing */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.price-card { 
  background: var(--white); 
  border-radius: 20px; 
  padding: 32px; 
  border: 2px solid var(--slate-200); 
  box-shadow: var(--shadow);
  transition: all var(--transition);
  position: relative;
}
.price-card.highlight { 
  border-color: var(--primary); 
  background: linear-gradient(180deg, var(--white) 0%, rgba(16, 185, 129, 0.02) 100%);
  box-shadow: var(--shadow-lg);
  transform: scale(1.05);
}
.price-card.highlight::before {
  content: 'MOST POPULAR';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--secondary) 0%, var(--premium) 100%);
  color: var(--white);
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { transform: translateX(-50%) scale(1); }
  50% { transform: translateX(-50%) scale(1.05); }
}
.price-card:hover:not(.highlight) {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}
.price { 
  font-size: 2rem; 
  font-weight: 700; 
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 12px 0 20px;
  font-family: var(--font-monospace);
}
.price-card ul { list-style: none; display: grid; gap: 12px; color: var(--slate-600); margin-bottom: 24px; }
.price-card li { display: flex; align-items: center; }
.price-card li::before { 
  content: '✓'; 
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--success) 100%);
  color: var(--white); 
  margin-right: 12px; 
  font-weight: 700;
  font-size: 0.75rem;
  border-radius: 50%;
}

/* Security */
.features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.feature { 
  background: var(--white); 
  border-radius: 16px; 
  padding: 24px; 
  border: 1px solid var(--slate-200);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.feature::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, var(--info) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition);
}
.feature:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--info);
}
.feature:hover::after {
  opacity: 0.05;
}
.feature-icon { 
  width: 48px; 
  height: 48px; 
  display: grid; 
  place-items: center; 
  color: var(--info); 
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.1) 0%, rgba(2, 132, 199, 0.1) 100%);
  border-radius: 12px; 
  margin-bottom: 16px;
  transition: all var(--transition);
}
.feature:hover .feature-icon {
  transform: scale(1.1) rotate(-5deg);
  background: linear-gradient(135deg, var(--info) 0%, #0284C7 100%);
  color: var(--white);
}
.feature h4 { margin-bottom: 8px; color: var(--slate-800); }
.feature p { color: var(--slate-600); font-size: 0.9rem; line-height: 1.6; }

/* FAQ */
.faq { max-width: 900px; margin: 0 auto; display: grid; gap: 16px; }
.faq-item { 
  background: var(--white); 
  border: 2px solid var(--slate-200); 
  border-radius: 16px; 
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item:hover {
  box-shadow: var(--shadow-md);
}
.faq-q { 
  width: 100%; 
  text-align: left; 
  padding: 20px 24px; 
  background: var(--white); 
  border: none; 
  font-weight: 600;
  font-family: var(--font-primary);
  cursor: pointer; 
  color: var(--slate-700);
  transition: all var(--transition);
  position: relative;
  padding-right: 48px;
}
.faq-q::after {
  content: '+';
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  background: var(--slate-100);
  border-radius: 50%;
  transition: all var(--transition);
}
.faq-q:hover {
  background: var(--slate-50);
}
.faq-q[aria-expanded="true"] { 
  color: var(--primary);
  background: linear-gradient(180deg, rgba(15, 118, 110, 0.05) 0%, transparent 100%);
}
.faq-q[aria-expanded="true"]::after {
  content: '−';
  background: var(--primary);
  color: var(--white);
  transform: translateY(-50%) rotate(180deg);
}
.faq-a { 
  display: none; 
  padding: 0 24px 24px; 
  color: var(--slate-600);
  line-height: 1.7;
  animation: slideDown 0.3s ease;
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}
.faq-item.open .faq-a { display: block; }

/* Footer */
.footer { 
  background: linear-gradient(135deg, var(--slate-800) 0%, var(--slate-900) 100%);
  color: var(--white); 
  margin-top: 80px;
  position: relative;
}
.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 33%, var(--secondary) 66%, var(--info) 100%);
}
.footer-content { 
  display: flex; 
  align-items: start; 
  justify-content: space-between; 
  gap: 32px; 
  padding: 48px 0 32px;
}
.footer h3 { 
  color: var(--white); 
  margin-bottom: 16px;
  font-size: 1.125rem;
  font-weight: 500;
}
.footer p, .footer a { 
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color var(--transition);
}
.footer a:hover { color: var(--accent); }
.footer-bottom { 
  padding: 20px 0 28px; 
  border-top: 1px solid rgba(255,255,255,.1); 
  text-align: center; 
  opacity: .8;
  font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 960px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; }
  .features { grid-template-columns: repeat(2, 1fr); }
}

/* Data Visualization Elements */
.metric-card {
  background: var(--white);
  border-radius: 16px;
  padding: 20px;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}

.metric-value {
  font-size: 2rem;
  font-weight: 700;
  font-family: var(--font-monospace);
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.metric-label {
  color: var(--slate-600);
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.metric-change {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-top: 8px;
}

.metric-change.positive {
  background: rgba(34, 197, 94, 0.1);
  color: var(--success);
}

.metric-change.negative {
  background: rgba(239, 68, 68, 0.1);
  color: var(--error);
}

/* Loading States */
.skeleton {
  background: linear-gradient(90deg, var(--slate-100) 25%, var(--slate-200) 50%, var(--slate-100) 75%);
  background-size: 200% 100%;
  animation: skeleton 1.5s ease-in-out infinite;
  border-radius: 8px;
}

@keyframes skeleton {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Focus States */
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

::-webkit-scrollbar-track {
  background: var(--slate-50);
  border-radius: 6px;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: 6px;
  border: 2px solid var(--slate-50);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--accent) 0%, var(--primary) 100%);
}

@media (max-width: 720px) {
  .nav-menu { display: none; position: absolute; top: 60px; right: 20px; left: 20px; background: var(--white); border: 1px solid var(--gray-100); border-radius: 10px; padding: 12px; box-shadow: 0 10px 24px rgba(0,0,0,.08); flex-direction: column; gap: 4px; }
  .nav-menu.active { display: flex; }
  .mobile-menu-btn { display: inline-flex; }
  .cards { grid-template-columns: 1fr; }
  .features { grid-template-columns: 1fr; }
}