:root {
  --navy: #14293D;
  --steel: #5E8FA4;
  --white: #fff;
  --bg: #F8FAFC;
}

body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.site-header {
  background: linear-gradient(90deg, #4b6b8e 60%, #14293D 100%);
  color: var(--white);
  height: 80px;
  flex-shrink: 0;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  padding: 0 16px;
}
.logo {
  height: 60px;
  width: auto;
  
}
.nav-links {
  display: flex;
  gap: 16px;
}
.nav-links a {
  color: var(--white);
  text-decoration: none;
  font-weight: 600;
  padding: 8px 10px;
  border-radius: 4px;
}
.nav-links a.active,
.nav-links a:hover {
  background: rgba(255,255,255,0.2);
}

/* Main frame area */
.main-frame {
  border: none;
  flex: 1;              /* Better than flex-grow */
  width: 100%;
  overflow: auto;
}


.nav-links {
  display: flex;
  gap: 16px;
}

/* HAMBURGER DEFAULT (Desktop hidden) */
.hamburger {
  display: none;
  font-size: 26px;
  cursor: pointer;
  color: white;
}

/* MOBILE VIEW */
@media (max-width: 768px) {

  /* Keep logo and hamburger in one row */
  .header-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  /* Show hamburger */
  .hamburger {
    display: block;
  }

  /* Hide normal nav */
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 80px;
    left: 0;
    width: 100%;
    background: #14293D;
    text-align: center;
    padding: 10px 0;
  }
  .nav-links.active {
    display: flex;
  }
  .nav-links a {
    display: block;
    padding: 12px 0;
  }

  /* Slightly smaller logo */
  .logo {
    height: 50px;
  }
}