/* ========= Reset & base ========= */

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

html {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.6;
  scroll-behavior: smooth;
}

body {
  background-color: #f7f7fb;
  color: #1f2933;
}

/* ========= Layout helpers ========= */

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* ========= Header & navigation ========= */

.site-header {
  background-color: #0b1f33;
  color: #ffffff;
}

.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
}

.logo-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-wrap img {
  height: 40px;
  width: auto;
}

.brand-text {
  font-size: 1.25rem;
  font-weight: 600;
}

.nav-links {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.nav-links a {
  color: #e5e9f0;
  text-decoration: none;
  font-size: 0.95rem;
}

.nav-links a:hover,
.nav-links a:focus {
  color: #ffffff;
  text-decoration: underline;
}

/* ========= Hero / banner ========= */

.hero {
  background-image: url("LinkedIn-Banner-v0.png");
  background-size: cover;
  background-position: center;
  color: #ffffff;
  text-align: left;
}

.hero-overlay {
  background: rgba(11, 31, 51, 0.7);
}

.hero-inner {
  padding: 3.5rem 0;
}

.hero h1 {
  font-size: clamp(2.2rem, 3vw, 2.8rem);
  margin-bottom: 0.5rem;
}

.hero p {
  max-width: 580px;
  font-size: 1.05rem;
}

/* ========= Main content ========= */

main {
  padding: 2.5rem 0 3.5rem;
}

.section {
  margin-bottom: 2.5rem;
}

.section:last-of-type {
  margin-bottom: 0;
}

.section-title {
  font-size: 1.6rem;
  margin-bottom: 1rem;
  color: #102a43;
}

.section-subtitle {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
  color: #243b53;
}

.section p {
  margin-bottom: 0.75rem;
}

.section ul {
  margin-left: 1.25rem;
  margin-bottom: 1rem;
}

.section li {
  margin-bottom: 0.5rem;
}

/* ========= Cards / process steps ========= */

.step-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem;
  margin-top: 1rem;
}

.step-card {
  background-color: #ffffff;
  border-radius: 0.6rem;
  padding: 1.25rem;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
  border-top: 3px solid #1f6feb;
}

.step-label {
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: #102a43;
}

.step-icon {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: #7b8794;
  margin-bottom: 0.35rem;
}

/* ========= Two-column layout ========= */

.two-col {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1.2fr);
  gap: 2rem;
}

/* Stack on small screens */
@media (max-width: 768px) {
  .two-col {
    grid-template-columns: minmax(0, 1fr);
  }

  .top-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .hero-inner {
    padding: 2.5rem 0;
  }
}

/* ========= Highlight blocks ========= */

.highlight {
  background-color: #ffffff;
  border-radius: 0.6rem;
  padding: 1.25rem 1.5rem;
  border-left: 4px solid #1f6feb;
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.06);
}

/* ========= Tagline ========= */

.tagline {
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #d9e2ec;
  margin-bottom: 0.5rem;
}

/* ========= Footer ========= */

.site-footer {
  background-color: #0b1f33;
  color: #f9fafb;
  padding: 1.75rem 0;
  margin-top: 2rem;
  font-size: 0.9rem;
}

/* Columns container */
.footer-grid {
  display: grid;
  gap: 1.75rem;
  align-items: flex-start;
}

/* 3 columns on tablets/desktop, stacked on mobile */
@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.footer-heading {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.35rem;
}

.footer-links a {
  color: #f9fafb;
  text-decoration: none;
}

.footer-links a:hover {
  text-decoration: underline;
  color: #ffffff;
}

.footer-bottom {
  margin-top: 1.25rem;
  border-top: 1px solid rgba(226, 232, 240, 0.2);
  padding-top: 0.75rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
}

.footer-bottom a {
  color: #f9fafb;
  text-decoration: none;
}

/* ========= Utilities ========= */

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }