/* =========================
   RESET & BASE
========================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  background: #f7fbfc;
  color: #1f2933;
  line-height: 1.6;
}

/* =========================
   TOP NAVIGATION
========================= */
.top-nav {
  background: #2f80ed;
  position: relative;
}

.nav-inner {
  max-width: 1100px;
  margin: auto;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  height: 80px;
}

/* Desktop nav */
nav {
  display: block;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: 500;
}

nav a:hover {
  opacity: 0.85;
}

/* =========================
   HAMBURGER MENU + ANIMATION
========================= */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.hamburger span {
  width: 26px;
  height: 3px;
  background: white;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Animate hamburger to X */
.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* =========================
   HERO SECTION
========================= */
.hero {
  background: linear-gradient(135deg, #2f80ed, #56ccf2);
  color: white;
  padding: 4rem 1.5rem;
  text-align: center;
}

.hero-content {
  max-width: 700px;
  margin: auto;
}

.hero h1 {
  font-size: 2.2rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

/* =========================
   BUTTONS
========================= */
.btn {
  display: inline-block;
  background: white;
  color: #2f80ed;
  padding: 0.75rem 1.5rem;
  border-radius: 30px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.btn.secondary {
  background: #2f80ed;
  color: white;
}

/* PDF badge */
.pdf-badge {
  margin-left: 0.5rem;
  padding: 0.15rem 0.45rem;
  font-size: 0.65rem;
  font-weight: 700;
  border-radius: 6px;
  background: rgba(255,255,255,0.25);
  color: white;
  letter-spacing: 0.04em;
}


/* =========================
   SECTIONS
========================= */
.section {
  padding: 3rem 1.5rem;
  max-width: 900px;
  margin: auto;
}

.section.light {
  background: white;
  border-radius: 20px;
  margin-top: 2rem;
}

.section h2 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

/* =========================
   PILLARS
========================= */
.pillars {
  list-style: none;
  display: grid;
  gap: 1.5rem;
}

.pillars h3 {
  margin-bottom: 0.5rem;
}

/* =========================
   FEATURED BOOK
========================= */
.book-card {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  flex-wrap: wrap;
}

.book-card img {
  width: 150px;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

/* =========================
   TOOLS LIST
========================= */
.tools {
  list-style: none;
  margin-bottom: 1.5rem;
}

.tools li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

/* =========================
   FOOTER
========================= */
.footer {
  background: #ffffff;
  margin-top: 3rem;
  padding: 3rem 1.5rem 2rem;
  color: #4b5563;
  font-size: 0.9rem;
}

.footer-grid {
  max-width: 1100px;
  margin: auto;
  display: grid;
  gap: 2rem;
}

.footer-logo {
  height: 200px;
  margin-bottom: 0.75rem;
}

.footer h4 {
  margin-bottom: 0.75rem;
  font-size: 1rem;
  color: #111827;
}

.footer ul {
  list-style: none;
}

.footer li {
  margin-bottom: 0.4rem;
}

.footer a {
  text-decoration: none;
  color: #4b5563;
}

.footer a:hover {
  color: #2f80ed;
}

.footer p {
  margin-bottom: 0.5rem;
}

.footer .copyright {
  text-align: center;
  margin-top: 2rem;
  font-size: 0.85rem;
  color: #6b7280;
}

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

  .hamburger {
    display: flex;
  }

  nav {
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: #2f80ed;
    display: none;
  }

  nav.show {
    display: block;
  }

  nav ul {
    flex-direction: column;
    padding: 1rem 0;
  }

  nav li {
    text-align: center;
    padding: 1rem 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

/* =========================
   BOOKS GRID
========================= */
.books-grid {
  display: grid;
  gap: 2rem;
  margin-top: 2rem;
}

.book-item {
  background: white;
  border-radius: 20px;
  padding: 2rem;
  text-align: center;
}

.book-item img {
  width: 160px;
  margin-bottom: 1rem;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.book-item h3 {
  margin-bottom: 0.75rem;
}

.book-item p {
  margin-bottom: 1.25rem;
}

.coming-soon {
  display: inline-block;
  font-weight: 600;
  color: #6b7280;
}

/* Desktop grid */
@media (min-width: 768px) {
  .books-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* =========================
   TRAINING PAGE
========================= */
.training-block {
  max-width: 700px;
}

.training-list {
  list-style: none;
  margin: 1rem 0;
}

.training-list li {
  margin-bottom: 0.5rem;
}

/* =========================
   ARTICLES PAGE
========================= */
.articles-list {
  display: grid;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.article-card {
  background: white;
  border-radius: 16px;
  padding: 1.5rem;
}

.article-card h3 {
  margin-bottom: 0.5rem;
}

.article-card p {
  margin-bottom: 0.75rem;
}

.article-card a {
  font-weight: 600;
  text-decoration: none;
  color: #2f80ed;
}

.article-card a:hover {
  text-decoration: underline;
}

@media (min-width: 768px) {
  .articles-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* =========================
   HERO ADJUSTMENTS (Mind)
========================= */
.hero.mind-hero {
  background: linear-gradient(135deg, #6fcf97, #27ae60);
}

/* Buttons within Mind page */
.btn.mind {
  background: #27ae60;
  color: white;
}

.btn.mind:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}


/* =========================
   DESKTOP ENHANCEMENTS
========================= */
@media (min-width: 768px) {

  .hero h1 {
    font-size: 2.8rem;
  }

  nav ul {
    gap: 2rem;
  }

  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

/* =========================
   ARTICLE HERO EYEBROW
========================= */
.hero-eyebrow {
  display: inline-block;
  margin-bottom: 0.75rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.85;
}

/* =========================
   ARTICLE CONTENT TWEAKS
========================= */
.section.light h2 {
  margin-top: 2.5rem;
}

.section.light h2:first-of-type {
  margin-top: 0;
}

.section.light p {
  margin-bottom: 1rem;
}

/* Article lists */
.section.light .training-list li {
  margin-bottom: 0.75rem;
  line-height: 1.7;
}

@media (min-width: 768px) {
  .section.light {
    padding: 4rem 3rem;
  }
}

.section.light h2 {
  position: relative;
}

.section.light h2::after {
  content: "";
  display: block;
  width: 40px;
  height: 3px;
  margin-top: 0.5rem;
  background: #2f80ed;
  opacity: 0.25;
  border-radius: 2px;
}