/* ==========================================================================
   Amjad & Hazli — Article/blog shared styles
   Extracted verbatim as the common prefix of the seven blog posts' inline
   <style> blocks, which were 97.7-100% identical copies of one template.

   Loaded via <link> BEFORE each post's remaining inline <style>, so the
   original cascade order is preserved exactly: shared rules first, per-post
   overrides after. Verified pixel-identical across three viewports.
   ========================================================================== */
:root {
  /* Layout measurements specific to article pages. Brand tokens (palette,
     type, radii) come from css/tokens.css, which loads first. */
  --container-max:     1200px;
  --container-padding: 24px;
  --article-max:       720px;

  /* Callout colours.
     The site palette is monochrome, but article callouts encode meaning:
     a "danger" box must not look identical to a "tip". These are the only
     hued values on the marketing site, muted and warmed so they sit with the
     neutral ramp instead of shouting over it. Scoped to article pages. */
  --color-success:       #4f6b57;
  --color-success-light: #e8ede9;
  --color-warning:       #8a6d3f;
  --color-warning-light: #f2ece1;
  --color-danger:        #8a4f4a;
  --color-danger-light:  #f2e7e6;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { 
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-text-tertiary);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  overscroll-behavior-y: contain;
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

/* Touch-friendly targets */
a, button { touch-action: manipulation; }
@media (hover: none) and (pointer: coarse) {
  * { -webkit-tap-highlight-color: transparent; }
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* Reading Progress Bar */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--color-gray-100);
  z-index: 1000;
}
.reading-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary) 0%, #5B6EF9 100%);
  width: 0%;
  transition: width 0.1s ease;
}

/* Navigation */
.nav {
  position: sticky;
  top: 3px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  z-index: 100;
  padding: var(--space-4) 0;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.nav-brand {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  color: var(--color-text-primary);
  text-decoration: none;
}
.nav-links { display: flex; align-items: center; gap: var(--space-8); list-style: none; }
.nav-link {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}
.nav-link:hover { color: var(--color-primary); }
.nav-actions { display: flex; align-items: center; gap: var(--space-2); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0 var(--space-4);
  height: 36px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  border: none;
}
.btn-primary { background: var(--color-accent); color: white; }
.btn-primary:hover { background: var(--color-accent-hover); transform: translateY(-1px); }
.btn-secondary { background: var(--color-white); color: var(--color-text-primary); border: 1px solid var(--color-gray-300); }
.btn-secondary:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* Article Header */
.article-header {
  padding: var(--space-16) 0 var(--space-12);
  text-align: center;
  background: linear-gradient(180deg, #F8F9FB 0%, #FFFFFF 100%);
}
.article-header .container {
  max-width: 900px;
}
.article-category {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  background: var(--color-primary-50);
  padding: 6px 14px;
  border-radius: 4px;
  margin-bottom: var(--space-5);
}
.article-title {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 500;
  color: var(--color-text-primary);
  line-height: 1.15;
  margin-bottom: var(--space-6);
  letter-spacing: -0.5px;
}
.article-excerpt {
  font-size: 20px;
  color: var(--color-text-tertiary);
  line-height: 1.6;
  max-width: 640px;
  margin: 0 auto var(--space-8);
}
.article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}
.article-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 14px;
  color: var(--color-text-tertiary);
}
.article-meta-item i {
  font-size: 18px;
  color: var(--color-gray-400);
}
.article-author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.author-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-primary-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
}
.author-name {
  font-weight: 500;
  color: var(--color-text-secondary);
}

/* Article Content Layout */
.article-wrapper {
  display: grid;
  grid-template-columns: 1fr minmax(auto, var(--article-max)) 1fr;
  gap: var(--space-12);
  padding: var(--space-12) var(--container-padding);
  max-width: 1400px;
  margin: 0 auto;
}

/* Table of Contents */
.toc {
  position: sticky;
  top: 100px;
  align-self: start;
}
.toc-title {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-4);
}
.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.toc-link {
  font-size: 13px;
  color: var(--color-text-tertiary);
  text-decoration: none;
  padding: var(--space-2) 0;
  padding-left: var(--space-4);
  border-left: 2px solid var(--color-gray-200);
  transition: all 0.2s ease;
  display: block;
}
.toc-link:hover,
.toc-link.active {
  color: var(--color-primary);
  border-left-color: var(--color-primary);
}

/* Article Body */
.article-body {
  font-size: 18px;
  line-height: 1.85;
  color: var(--color-gray-700);
}
.article-body h2 {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 500;
  color: var(--color-text-primary);
  margin-top: var(--space-16);
  margin-bottom: var(--space-6);
  line-height: 1.3;
  scroll-margin-top: 100px;
}
.article-body h3 {
  font-family: var(--font-body);
  font-size: 22px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
  line-height: 1.4;
}
.article-body p {
  margin-bottom: var(--space-6);
}
.article-body p:first-of-type {
  font-size: 20px;
  color: var(--color-text-secondary);
}
.article-body a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-body a:hover {
  text-decoration-color: var(--color-primary-200);
}
.article-body ul, .article-body ol {
  margin-bottom: var(--space-6);
  padding-left: var(--space-6);
}
.article-body li {
  margin-bottom: var(--space-3);
}
.article-body strong {
  font-weight: 600;
  color: var(--color-text-secondary);
}

/* Info Box */
.info-box {
  padding: var(--space-6);
  border-radius: 4px;
  margin: var(--space-8) 0;
  display: flex;
  gap: var(--space-4);
}
.info-box.tip {
  background: var(--color-success-light);
  border: 1px solid rgba(16, 185, 129, 0.2);
}
.info-box.warning {
  background: var(--color-warning-light);
  border: 1px solid rgba(245, 158, 11, 0.2);
}
.info-box.important {
  background: var(--color-primary-50);
  border: 1px solid var(--color-primary-100);
}