/* Medium Design System & Typography */
:root {
  --font-serif: "Charter", "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif;
  --font-sans: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", monospace;
  --color-bg: #0C0C0D;
  --color-card: #141416;
  --color-border: #26262A;
  --color-text-main: #E6E6E6;
  --color-text-muted: #9E9EA4;
  --color-text-dim: #6E6E73;
  --color-accent: #25D366;
  --color-white: #FFFFFF;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text-main);
  font-family: var(--font-serif);
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Medium Top Header Bar */
.medium-header {
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: rgba(12, 12, 13, 0.95);
  backdrop-filter: blur(12px);
  z-index: 1000;
  padding: 14px 0;
}

.medium-header-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.medium-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.medium-brand-logo {
  height: 28px;
  width: auto;
  display: block;
}

.medium-pub-name {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-white);
  letter-spacing: -0.01em;
  border-left: 1px solid var(--color-border);
  padding-left: 12px;
}

.medium-header-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  font-family: var(--font-sans);
  font-size: 0.88rem;
}

.medium-nav-link {
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

.medium-nav-link:hover {
  color: var(--color-white);
}

.medium-cta-btn {
  background: var(--color-accent);
  color: #000000;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.82rem;
  padding: 8px 18px;
  border-radius: 999px;
  text-decoration: none;
  border: 1px solid #000000;
  transition: transform 0.15s ease, background-color 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.medium-cta-btn:hover {
  background: #20BD5A;
  transform: translateY(-1px);
}

/* Medium Reading Progress Indicator */
.reading-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--color-accent);
  width: 0%;
  z-index: 9999;
  transition: width 0.05s ease;
}

/* Medium Article Container */
.article-container {
  max-width: 680px;
  margin: 0 auto;
  padding: 60px 24px 100px;
}

.article-category-pill {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  background: rgba(37, 211, 102, 0.08);
  border: 1px solid rgba(37, 211, 102, 0.25);
  border-radius: 999px;
  padding: 4px 14px;
  margin-bottom: 20px;
}

.article-title {
  font-family: var(--font-sans);
  font-size: 2.65rem;
  font-weight: 800;
  line-height: 1.22;
  color: var(--color-white);
  letter-spacing: -0.025em;
  margin: 0 0 16px 0;
}

@media (max-width: 768px) {
  .article-title {
    font-size: 2rem;
    line-height: 1.28;
  }
}

.article-subtitle {
  font-family: var(--font-serif);
  font-size: 1.28rem;
  line-height: 1.55;
  color: var(--color-text-muted);
  margin: 0 0 32px 0;
  font-weight: 400;
}

/* Medium Iconic Author Bar */
.medium-author-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 40px;
}

.medium-author-info {
  display: flex;
  align-items: center;
  gap: 14px;
}

.medium-author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-accent);
  display: block;
}

.medium-author-meta {
  font-family: var(--font-sans);
  font-size: 0.85rem;
}

.medium-author-name {
  font-weight: 700;
  color: var(--color-white);
  text-decoration: none;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 6px;
}

.medium-author-name:hover {
  color: var(--color-accent);
}

.medium-story-stats {
  color: var(--color-text-dim);
  font-size: 0.8rem;
  margin-top: 3px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.medium-action-buttons {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--color-text-muted);
}

.medium-action-icon {
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  padding: 6px;
  border-radius: 6px;
  transition: color 0.15s ease;
}

.medium-action-icon:hover {
  color: var(--color-accent);
}

/* Medium Article Prose Body */
.article-prose {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  line-height: 1.82;
  color: #D4D4D8;
  letter-spacing: -0.003em;
}

.article-prose p {
  margin: 0 0 32px 0;
}

.article-prose h2 {
  font-family: var(--font-sans);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.32;
  letter-spacing: -0.015em;
  margin: 52px 0 20px 0;
}

.article-prose h3 {
  font-family: var(--font-sans);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.38;
  margin: 40px 0 16px 0;
}

.article-prose ul, .article-prose ol {
  margin: 0 0 32px 24px;
  padding: 0;
}

.article-prose li {
  margin-bottom: 12px;
  line-height: 1.75;
}

/* Medium Iconic Pull Quote */
.article-prose blockquote {
  margin: 40px 0;
  padding: 8px 0 8px 24px;
  border-left: 3px solid var(--color-accent);
  font-style: italic;
  font-size: 1.35rem;
  line-height: 1.6;
  color: var(--color-white);
}

/* Medium 3-Dot Divider */
.medium-divider {
  text-align: center;
  font-size: 1.8rem;
  letter-spacing: 0.6em;
  color: var(--color-text-dim);
  margin: 48px 0;
  font-family: var(--font-serif);
}

/* Medium Callout Highlight Box */
.medium-callout {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: 8px;
  padding: 24px;
  margin: 36px 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
}

.medium-callout-title {
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.medium-callout p:last-child {
  margin-bottom: 0;
}

/* Medium Article Tag Pills */
.medium-story-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 48px 0 36px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.medium-tag-pill {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 6px 16px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.medium-tag-pill:hover {
  color: var(--color-white);
  border-color: var(--color-accent);
}

/* Medium Iconic Author Footer Card */
.medium-author-footer {
  margin-top: 60px;
  padding: 32px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 24px;
  align-items: center;
}

@media (max-width: 640px) {
  .medium-author-footer {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .medium-author-footer img {
    margin: 0 auto;
  }
}

.medium-footer-avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-accent);
  display: block;
}

.medium-footer-name {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 6px;
}

.medium-footer-bio {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  margin: 0 0 16px 0;
}

.medium-footer-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Strict button height rule: 52px desktop, 48px mobile */
.hero-cta-btn, button[type="submit"] {
  height: 52px !important;
  min-height: 52px !important;
  max-height: 52px !important;
  padding: 0 24px !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  box-sizing: border-box !important;
  font-family: var(--font-sans) !important;
  font-weight: 800 !important;
  font-size: 0.88rem !important;
  text-transform: uppercase !important;
  letter-spacing: 0.02em !important;
  border-radius: 8px !important;
  cursor: pointer !important;
  text-decoration: none !important;
  transition: transform 0.2s ease, box-shadow 0.2s ease !important;
}

@media (max-width: 768px) {
  .hero-cta-btn, button[type="submit"] {
    height: 48px !important;
    min-height: 48px !important;
    max-height: 48px !important;
    padding: 0 18px !important;
    font-size: 0.84rem !important;
    width: 100% !important;
  }
}

/* Recommended Stories Strip */
.medium-recommendations {
  max-width: 1040px;
  margin: 80px auto 0;
  padding: 60px 24px 0;
  border-top: 1px solid var(--color-border);
}

.medium-rec-heading {
  font-family: var(--font-sans);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 32px;
}

.medium-rec-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.medium-rec-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 24px;
  text-decoration: none;
  transition: border-color 0.2s ease, transform 0.2s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.medium-rec-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.medium-rec-title {
  font-family: var(--font-sans);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-white);
  margin: 0 0 10px 0;
  line-height: 1.35;
}

.medium-rec-desc {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin: 0 0 18px 0;
}

.medium-rec-meta {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--color-text-dim);
}

@media (max-width: 768px) {
  .medium-header-nav .medium-nav-link {
    display: none;
  }
  .medium-pub-name {
    display: none;
  }
  .medium-header-inner {
    padding: 0 16px;
  }
}