/* =========================================================
   George Popescu AI — styles.css
   ========================================================= */

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 1rem;
  line-height: 1.75;
  color: #222222;
  background-color: #f7f7f5;
}

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

a {
  color: #c8973a;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

ul {
  list-style: none;
}

/* ---------- Typography ---------- */
h1 {
  font-size: 2.6rem;
  font-weight: 700;
  line-height: 1.2;
}

h2 {
  font-size: 2rem;
  font-weight: 600;
  line-height: 1.3;
}

h3 {
  font-size: 1.4rem;
  font-weight: 600;
  line-height: 1.4;
}

h4 {
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.4;
}

p {
  margin-bottom: 1.2rem;
}

p:last-child {
  margin-bottom: 0;
}

/* ---------- Layout ---------- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: #0d1b2a;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
}

.site-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.site-name:hover {
  color: #c8973a;
  text-decoration: none;
}

.site-name span {
  color: #c8973a;
}

.site-nav ul {
  display: flex;
  gap: 32px;
  align-items: center;
}

.site-nav a {
  color: #e0e0e0;
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s;
}

.site-nav a:hover,
.site-nav a.active {
  color: #c8973a;
  text-decoration: none;
}

/* ---------- Hero ---------- */
.hero {
  background-color: #0d1b2a;
  color: #ffffff;
  padding: 80px 0;
  text-align: center;
}

.hero h1 {
  color: #ffffff;
  margin-bottom: 24px;
}

.hero h1 span {
  color: #c8973a;
}

.hero .subtitle {
  font-size: 1.2rem;
  color: #b0bec5;
  max-width: 720px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  background-color: #c8973a;
  color: #ffffff;
  border: none;
  border-radius: 4px;
  padding: 12px 28px;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.2s, opacity 0.2s;
}

.btn:hover {
  background-color: #b5852e;
  color: #ffffff;
  text-decoration: none;
  opacity: 0.95;
}

.btn-outline {
  background-color: transparent;
  color: #c8973a;
  border: 2px solid #c8973a;
}

.btn-outline:hover {
  background-color: #c8973a;
  color: #ffffff;
}

/* ---------- Sections ---------- */
.section {
  padding: 64px 0;
}

.section-white {
  background-color: #ffffff;
}

.section-light {
  background-color: #f7f7f5;
}

.section-dark {
  background-color: #0d1b2a;
  color: #ffffff;
}

.section-dark h2,
.section-dark h3 {
  color: #ffffff;
}

.section-dark p {
  color: #b0bec5;
}

.section-title {
  text-align: center;
  margin-bottom: 48px;
}

.section-title h2 {
  margin-bottom: 16px;
}

.section-title p {
  font-size: 1.1rem;
  color: #666666;
  max-width: 680px;
  margin: 0 auto;
}

/* ---------- Cards ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

.card {
  background-color: #ffffff;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  padding: 32px;
}

.card h3 {
  color: #0d1b2a;
  margin-bottom: 16px;
}

.card p {
  color: #666666;
  font-size: 0.95rem;
}

.card .card-icon {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.card-check-list {
  list-style: none;
  padding: 0;
  margin-top: 16px;
}

.card-check-list li {
  padding: 4px 0;
  color: #555555;
  font-size: 0.9rem;
}

.card-check-list li::before {
  content: '✓ ';
  color: #c8973a;
  font-weight: 700;
}

/* ---------- Blog Cards ---------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.blog-card {
  background-color: #ffffff;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.blog-card .meta {
  font-size: 0.82rem;
  color: #999999;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.blog-card h3 {
  color: #0d1b2a;
  font-size: 1.2rem;
}

.blog-card h3 a {
  color: #0d1b2a;
  text-decoration: none;
}

.blog-card h3 a:hover {
  color: #c8973a;
}

.blog-card .excerpt {
  color: #555555;
  font-size: 0.95rem;
  flex: 1;
}

.blog-card .read-more {
  font-size: 0.9rem;
  font-weight: 600;
  color: #c8973a;
}

/* ---------- Article Page ---------- */
.article-header {
  background-color: #0d1b2a;
  color: #ffffff;
  padding: 64px 0 48px;
}

.article-header h1 {
  color: #ffffff;
  margin-bottom: 20px;
  font-size: 2.2rem;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: #90a4ae;
}

.article-meta .tag {
  background-color: rgba(200, 151, 58, 0.2);
  color: #c8973a;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 0.8rem;
}

.article-body {
  background-color: #ffffff;
  padding: 56px 0;
}

.article-content {
  max-width: 780px;
  margin: 0 auto;
}

.article-content h2 {
  font-size: 1.6rem;
  color: #0d1b2a;
  margin: 2rem 0 0.8rem;
}

.article-content h3 {
  font-size: 1.25rem;
  color: #0d1b2a;
  margin: 1.6rem 0 0.6rem;
}

.article-content p {
  margin-bottom: 1.2rem;
  color: #333333;
}

.article-content ul,
.article-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1.2rem;
  color: #333333;
}

.article-content ul li,
.article-content ol li {
  margin-bottom: 0.4rem;
  list-style: disc;
}

.article-content ol li {
  list-style: decimal;
}

.article-content blockquote {
  border-left: 4px solid #c8973a;
  padding-left: 20px;
  margin: 1.5rem 0;
  font-style: italic;
  color: #555555;
}

.article-tags {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid #e8e8e8;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.article-tags span.label {
  font-weight: 600;
  color: #555555;
  font-size: 0.9rem;
}

.tag-pill {
  background-color: #f0e9d8;
  color: #8a6520;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 500;
}

.article-nav {
  max-width: 780px;
  margin: 40px auto 0;
  padding-top: 24px;
  border-top: 1px solid #e8e8e8;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.article-nav a {
  font-size: 0.9rem;
  font-weight: 600;
  color: #c8973a;
  max-width: 45%;
}

.article-nav .prev::before {
  content: '← ';
}

.article-nav .next::after {
  content: ' →';
}

/* ---------- About Page ---------- */
.about-intro {
  background-color: #0d1b2a;
  color: #ffffff;
  padding: 80px 0 64px;
}

.about-intro h1 {
  color: #ffffff;
  margin-bottom: 24px;
}

.about-intro p {
  font-size: 1.1rem;
  color: #b0bec5;
  max-width: 760px;
  line-height: 1.8;
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.expertise-card {
  background-color: #ffffff;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  padding: 32px;
}

.expertise-card h3 {
  color: #0d1b2a;
  margin-bottom: 12px;
}

.expertise-card p {
  color: #555555;
  font-size: 0.95rem;
  margin-bottom: 12px;
}

.expertise-card ul {
  padding: 0;
  list-style: none;
}

.expertise-card ul li {
  color: #555555;
  font-size: 0.9rem;
  padding: 3px 0;
}

.expertise-card ul li::before {
  content: '— ';
  color: #c8973a;
  font-weight: 700;
}

.highlight-box {
  background-color: #f0e9d8;
  border-left: 4px solid #c8973a;
  border-radius: 4px;
  padding: 28px 32px;
  margin-bottom: 32px;
}

.highlight-box p {
  color: #555555;
  font-size: 1rem;
  margin: 0;
}

/* ---------- Contact Page ---------- */
.contact-hero {
  background-color: #0d1b2a;
  color: #ffffff;
  padding: 80px 0 56px;
  text-align: center;
}

.contact-hero h1 {
  color: #ffffff;
  margin-bottom: 16px;
}

.contact-hero h2 {
  color: #c8973a;
  font-size: 1.5rem;
  font-weight: 500;
}

.contact-form-section {
  background-color: #ffffff;
  padding: 64px 0;
}

.contact-form-wrap {
  max-width: 640px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: #333333;
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid #d0d0d0;
  border-radius: 4px;
  font-family: inherit;
  font-size: 1rem;
  color: #222222;
  background-color: #fafafa;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #c8973a;
  background-color: #ffffff;
}

.form-group textarea {
  min-height: 160px;
  resize: vertical;
}

.form-submit {
  margin-top: 8px;
}

/* ---------- Key Themes Section ---------- */
.themes-section {
  background-color: #f7f7f5;
  padding: 64px 0;
}

.themes-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.themes-content h2 {
  margin-bottom: 24px;
  color: #0d1b2a;
}

.themes-content p {
  color: #555555;
  font-size: 1.05rem;
  line-height: 1.8;
}

/* ---------- CTA Section ---------- */
.cta-section {
  background-color: #0d1b2a;
  padding: 72px 0;
  text-align: center;
  color: #ffffff;
}

.cta-section h2 {
  color: #ffffff;
  margin-bottom: 16px;
}

.cta-section p {
  color: #b0bec5;
  font-size: 1.05rem;
  max-width: 640px;
  margin: 0 auto 32px;
}

/* ---------- Footer ---------- */
.site-footer {
  background-color: #0d1b2a;
  padding: 40px 0;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.site-footer p {
  color: #8899aa;
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.footer-nav {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.footer-nav a {
  color: #aabbcc;
  font-size: 0.88rem;
  text-decoration: none;
  transition: color 0.2s;
}

.footer-nav a:hover {
  color: #c8973a;
}

.copyright {
  color: #667788;
  font-size: 0.82rem;
}

/* ---------- Page Inner Hero ---------- */
.page-hero {
  background-color: #0d1b2a;
  padding: 64px 0 48px;
  text-align: center;
}

.page-hero h1 {
  color: #ffffff;
  margin-bottom: 12px;
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.6rem;
  }

  h3 {
    font-size: 1.2rem;
  }

  .site-header .container {
    flex-direction: column;
    gap: 16px;
    padding-top: 20px;
    padding-bottom: 20px;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .hero {
    padding: 56px 0;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero .subtitle {
    font-size: 1rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .section {
    padding: 48px 0;
  }

  .card-grid,
  .blog-grid,
  .expertise-grid {
    grid-template-columns: 1fr;
  }

  .article-header h1 {
    font-size: 1.7rem;
  }

  .article-nav {
    flex-direction: column;
  }

  .article-nav a {
    max-width: 100%;
  }

  .footer-nav {
    gap: 16px;
  }
}