/* === Global Styles === */
:root {
  --navy: #0A1A2F;
  --deep-blue: #1C2B3A;
  --sapphire: #1E5FFF;
  --cool-gray: #C5C9CC;
  --silver: #A7A9AC;
  --white: #ffffff;
}

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

body {
  font-family: 'Open Sans', sans-serif;
  background: linear-gradient(180deg, var(--navy) 0%, var(--deep-blue) 100%);
  color: var(--cool-gray);
  line-height: 1.6;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
}

/* === Header === */
.header {
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 100;
  padding: 20px 0;
  background: rgba(10, 26, 47, 0.8);
  backdrop-filter: blur(8px);
}

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

.logo {
  font-family: 'Montserrat', sans-serif;
  color: var(--white);
  font-weight: 700;
  font-size: 1.4rem;
}
.logo span {
  color: var(--silver);
}

.nav a {
  color: var(--cool-gray);
  text-decoration: none;
  margin-left: 25px;
  transition: color 0.3s;
}
.nav a:hover {
  color: var(--sapphire);
}

/* === Buttons === */
.btn-primary {
  background: var(--sapphire);
  color: var(--white);
  padding: 10px 22px;
  border-radius: 4px;
  text-decoration: none;
  transition: 0.3s;
}
.btn-primary:hover {
  background: #3a73ff;
}

.btn-outline {
  border: 1px solid var(--silver);
  color: var(--silver);
  padding: 10px 22px;
  border-radius: 4px;
  text-decoration: none;
  transition: 0.3s;
}
.btn-outline:hover {
  background: var(--silver);
  color: var(--navy);
}

.btn-outline-light {
  border: 1px solid var(--white);
  color: var(--white);
}
.btn-outline-light:hover {
  background: var(--white);
  color: var(--navy);
}

/* === Hero Section === */
.hero {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: url('https://png.pngtree.com/thumb_back/fh260/background/20240419/pngtree-stock-market-finance-business-economy-trend-graph-digital-technology-image_15664197.jpg') center/cover no-repeat;
  color: var(--white);
}

.overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 26, 47, 0.8);
}

.hero-content {
  position: relative;
  max-width: 700px;
}
.hero h1 {
  font-family: 'Montserrat', sans-serif;
  font-size: 2.4rem;
  margin-bottom: 15px;
}
.hero p {
  font-size: 1.1rem;
  margin-bottom: 25px;
  color: var(--cool-gray);
}
.hero-buttons a {
  margin: 0 10px;
}

/* === Benefits Section === */
.benefits {
  padding: 100px 0;
  text-align: center;
}
.benefits h2 {
  font-family: 'Montserrat', sans-serif;
  color: var(--white);
  margin-bottom: 50px;
}
.benefit-grid {
  display: grid;
  gap: 30px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.benefit-item {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 6px;
  padding: 30px;
  transition: 0.3s;
}
.benefit-item:hover {
  background: rgba(255, 255, 255, 0.1);
}
.benefit-item h3 {
  color: var(--sapphire);
  margin-bottom: 10px;
}

/* === Insights Section === */
.insights {
  padding: 100px 0;
  display: flex;
  align-items: center;
}
.insights-container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
}
.insights-text {
  flex: 1;
}
.insights-visual {
  flex: 1;
  text-align: center;
}
.dashboard-preview {
  width: 100%;
  height: 280px;
  background: linear-gradient(135deg, var(--sapphire), var(--silver));
  border-radius: 8px;
}

/* === Methodology Section === */
.methodology {
  background: var(--deep-blue);
  padding: 100px 0;
  text-align: center;
}
.methodology h2 {
  color: var(--white);
  margin-bottom: 40px;
}
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
}
.step {
  background: rgba(255, 255, 255, 0.05);
  padding: 20px;
  border-radius: 6px;
}
.step h4 {
  color: var(--sapphire);
  margin-bottom: 10px;
}

/* === CTA Section === */
.cta {
  background: var(--navy);
  padding: 100px 0;
  text-align: center;
  background-image: linear-gradient(135deg, rgba(30,95,255,0.2), transparent);
}
.cta h2 {
  color: var(--white);
  margin-bottom: 30px;
}

/* === Footer === */
.footer {
  background: #081321;
  padding: 40px 0;
  text-align: center;
  color: var(--cool-gray);
}
.footer .footer-links a {
  color: var(--cool-gray);
  margin: 0 10px;
  text-decoration: none;
  transition: color 0.3s;
}
.footer .footer-links a:hover {
  color: var(--sapphire);
}
.footer .logo {
  margin-bottom: 15px;
}

/* === Responsive === */
@media (max-width: 768px) {
  .nav a {
    margin-left: 15px;
  }
  .hero h1 {
    font-size: 2rem;
  }
  .insights-container {
    flex-direction: column;
  }
}