/* NexusForge Insights - Professional Industrial Theme */
:root {
  --navy: #0a1f3d;
  --steel: #1e3a5f;
  --copper: #c97b3d;
  --light: #f8f9fa;
  --gray: #6c757d;
  --white: #ffffff;
  --shadow: 0 8px 30px rgba(10, 31, 61, 0.12);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  line-height: 1.7;
  color: var(--navy);
  background: var(--light);
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  background: linear-gradient(135deg, var(--navy) 0%, var(--steel) 100%);
  color: var(--white);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow);
}

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

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

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

nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
}

nav a {
  color: var(--white);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

nav a:hover {
  color: var(--copper);
}

/* Hero */
.hero {
  background: linear-gradient(rgba(10, 31, 61, 0.75), rgba(10, 31, 61, 0.85)), url('images/hero-trades.jpg') center/cover no-repeat;
  color: var(--white);
  padding: 120px 0 100px;
  text-align: center;
  position: relative;
}

.hero h1 {
  font-size: 3.2rem;
  margin-bottom: 1rem;
  animation: fadeUp 1s ease-out;
}

.hero p {
  font-size: 1.3rem;
  max-width: 700px;
  margin: 0 auto 2rem;
  animation: fadeUp 1.2s ease-out;
}

.btn {
  display: inline-block;
  background: var(--copper);
  color: var(--white);
  padding: 14px 32px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.3s, background 0.3s;
}

.btn:hover {
  background: #b56a2e;
  transform: translateY(-2px);
}

/* Sections */
section {
  padding: 80px 0;
}

section:nth-child(even) {
  background: #fff;
}

h2 {
  font-size: 2.4rem;
  margin-bottom: 1.5rem;
  color: var(--navy);
  position: relative;
  display: inline-block;
}

h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 60px;
  height: 4px;
  background: var(--copper);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.card {
  background: var(--white);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: var(--shadow);
  transition: transform 0.4s ease, box-shadow 0.4s;
  opacity: 0;
  transform: translateY(30px);
}

.card.visible {
  opacity: 1;
  transform: translateY(0);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 40px rgba(10, 31, 61, 0.18);
}

.card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 1rem;
}

/* Disclaimer */
.disclaimer {
  background: #fff3cd;
  border-left: 5px solid #ffc107;
  padding: 1.5rem;
  margin: 2rem 0;
  font-size: 0.95rem;
  color: #856404;
}

/* Footer */
footer {
  background: var(--navy);
  color: var(--white);
  padding: 3rem 0 1.5rem;
  text-align: center;
}

footer a {
  color: var(--copper);
  text-decoration: none;
  margin: 0 1rem;
}

footer a:hover {
  text-decoration: underline;
}

/* Animations */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 { font-size: 2.2rem; }
  nav ul { gap: 1rem; font-size: 0.9rem; }
  .grid { grid-template-columns: 1fr; }
}