:root {
  --bg: #f7f4ef;
  --surface: #ffffff;
  --surface-strong: #e6f3f4;
  --primary: #d54d3f;
  --primary-dark: #9e3028;
  --text: #102a43;
  --muted: #536b7a;
  --border: #d9e2e3;
  --shadow: 0 16px 32px rgba(16, 42, 67, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Georgia, 'Times New Roman', serif;
  background: linear-gradient(135deg, #f7f4ef 0%, #eaf5f7 55%, #f7d9c4 100%);
  color: var(--text);
  line-height: 1.6;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: var(--primary);
  text-decoration: none;
}

button,
input {
  font: inherit;
}

.container {
  width: min(1100px, calc(100% - 32px));
  margin: 0 auto;
}

.page-content {
  padding: 28px 0 72px;
}

.hero-section {
  display: block;
  min-height: 390px;
  padding: 28px 0 24px;
}

.hero-copy {
  background: linear-gradient(135deg, rgba(213, 77, 63, 0.1), rgba(99, 197, 218, 0.16));
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: clamp(28px, 5vw, 64px);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-copy h1 {
  margin: 0 0 18px;
  max-width: 620px;
  font-size: 4rem;
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-link {
  align-self: flex-start;
  margin-top: 12px;
  padding: 12px 18px;
  border-radius: 4px;
  background: var(--text);
  color: #fff;
  font-weight: 700;
  transition: transform 0.2s ease, background 0.2s ease;
}

.hero-link:hover,
.hero-link:focus-visible {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.eyebrow {
  display: inline-block;
  margin: 0 0 10px;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  font-weight: 700;
}

.hero-copy h2 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 3vw, 3rem);
  line-height: 1.15;
}

.hero-copy p:last-child {
  margin: 0;
  max-width: 680px;
  color: var(--muted);
  font-size: 1.05rem;
}

.posts-section {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 26px;
  margin-top: 28px;
}

.section-heading {
  grid-column: 1 / -1;
  max-width: 700px;
  margin: 18px 0 4px;
}

.section-heading h2,
.path-intro h2,
.closing-banner h2 {
  margin: 0 0 10px;
  font-size: 2.4rem;
  line-height: 1.08;
}

.section-heading > p:last-child,
.path-intro > p:last-child,
.closing-banner > p:last-child {
  margin: 0;
  color: var(--muted);
}

.post {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.post:hover {
  transform: translateY(-2px);
}

.post img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.post-body {
  padding: 20px 22px 24px;
}

.post-tag {
  display: inline-block;
  padding: 5px 10px;
  border-radius: 4px;
  background: var(--surface-strong);
  color: var(--primary-dark);
  font-size: 0.76rem;
  font-weight: 700;
}

.post h3 {
  margin: 12px 0 10px;
  font-size: 1.6rem;
}

.post h3 a {
  color: var(--text);
}

.post p {
  margin: 0 0 16px;
  color: var(--muted);
}

.post-meta {
  font-size: 0.86rem;
  color: var(--muted);
}

.toggle-detail {
  margin-top: 6px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--primary);
  padding: 9px 14px;
  border-radius: 4px;
  font-weight: 700;
  cursor: pointer;
}

.toggle-detail:hover,
.toggle-detail:focus-visible {
  background: var(--surface-strong);
}

.article-detail {
  margin-top: 18px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.article-detail p {
  margin-bottom: 10px;
  color: var(--text);
}

.article-detail code {
  padding: 2px 5px;
  border-radius: 3px;
  background: var(--surface-strong);
  color: var(--primary-dark);
  font-family: monospace;
  font-size: 0.9em;
}

.learning-path {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 54px;
  margin-top: 72px;
  padding: 42px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.path-list {
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.path-list li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}

.path-list li:last-child {
  border-bottom: 0;
}

.path-list li > span {
  color: var(--primary);
  font-family: monospace;
  font-size: 1.1rem;
  font-weight: 700;
}

.path-list h3 {
  margin: 0 0 4px;
  font-size: 1.2rem;
}

.path-list p {
  margin: 0;
  color: var(--muted);
}

.closing-banner {
  margin-top: 68px;
  padding: 42px clamp(24px, 6vw, 72px);
  border-radius: 8px;
  background: var(--text);
  color: #fff;
  text-align: center;
}

.closing-banner .eyebrow {
  color: #f6c85f;
}

.closing-banner h2 {
  max-width: 650px;
  margin-right: auto;
  margin-left: auto;
}

.closing-banner > p:last-child {
  color: #c9d9dc;
}

@media (max-width: 768px) {
  .learning-path {
    grid-template-columns: 1fr;
  }

  .hero-copy h1 {
    font-size: 2.6rem;
  }

  .learning-path {
    gap: 28px;
  }

  .posts-section {
    grid-template-columns: 1fr;
  }

  .section-heading h2,
  .path-intro h2,
  .closing-banner h2 {
    font-size: 2rem;
  }
}