/* =============================================
   CSS VARIABLES — Estimately.io Brand
   ============================================= */
:root {
  --navy: #0A3D62;
  --navy-light: #0D4A75;
  --blue: #1565C0;
  --sky: #42A5F5;
  --sky-light: #64B5F6;
  --sky-pale: #E3F2FD;
  --green: #16A34A;
  --green-pale: #DCFCE7;
  --red: #DC2626;
  --red-pale: #FEE2E2;
  --amber: #D97706;
  --amber-pale: #FEF3C7;
  --bg: #FAFCFF;
  --white: #FFFFFF;
  --gray-50: #F8FAFC;
  --gray-100: #F1F5F9;
  --gray-200: #E2E8F0;
  --gray-300: #CBD5E1;
  --gray-400: #94A3B8;
  --gray-500: #64748B;
  --gray-600: #475569;
  --gray-700: #334155;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-serif: 'Lora', Georgia, 'Times New Roman', serif;
  --content-width: 760px;
  --wide-width: 860px;
}

/* =============================================
   ARTICLE HERO
   ============================================= */
.article-hero {
  background: linear-gradient(165deg, var(--navy) 0%, var(--navy-light) 55%, var(--blue) 100%);
  padding: 80px 40px 72px;
  position: relative;
  overflow: hidden;
}

.article-hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -150px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(66,165,245,0.12), transparent 65%);
  border-radius: 50%;
}

.article-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image:
    linear-gradient(to right, white 1px, transparent 1px),
    linear-gradient(to bottom, white 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-inner {
  max-width: var(--content-width);
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.hero-breadcrumb {
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  margin-bottom: 28px;
}

.hero-breadcrumb a {
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  transition: color 0.2s;
}

.hero-breadcrumb a:hover { color: rgba(255,255,255,0.85); }
.hero-breadcrumb span { margin: 0 8px; }

.hero-tag {
  display: inline-block;
  background: rgba(66,165,245,0.2);
  border: 1px solid rgba(66,165,245,0.35);
  color: var(--sky-light);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 44px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: 24px;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 14px;
  color: rgba(255,255,255,0.5);
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-dot {
  width: 4px;
  height: 4px;
  background: rgba(255,255,255,0.3);
  border-radius: 50%;
}

/* =============================================
   ARTICLE BODY — THE CORE CONTENT AREA
   ============================================= */
.article-body {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 56px 40px 80px;
}

/* --- Typography --- */
.article-body p {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--gray-700);
  line-height: 1.8;
  margin-bottom: 28px;
}

.article-body h2 {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.25;
  letter-spacing: -0.5px;
  margin-top: 56px;
  margin-bottom: 22px;
  padding-top: 32px;
  border-top: 1px solid var(--gray-200);
}

.article-body h2:first-of-type {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.article-body h3 {
  font-family: var(--font-body);
  font-size: 20px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.35;
  margin-top: 36px;
  margin-bottom: 16px;
}

.article-body strong {
  font-weight: 700;
  color: var(--navy);
}

.article-body em {
  font-style: italic;
}

/* --- Blockquotes --- */
.article-body blockquote {
  margin: 36px 0;
  padding: 28px 32px;
  background: var(--sky-pale);
  border-left: 4px solid var(--blue);
  border-radius: 0 12px 12px 0;
  font-family: var(--font-serif);
  font-size: 18px;
  font-style: italic;
  color: var(--navy);
  line-height: 1.7;
}

.article-body blockquote p {
  margin-bottom: 0;
  color: var(--navy);
  font-style: italic;
}

/* --- Lists --- */
.article-body ul, .article-body ol {
  margin: 0 0 28px 0;
  padding-left: 24px;
}

.article-body li {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--gray-700);
  line-height: 1.8;
  margin-bottom: 10px;
}

/* =============================================
   AUTO-FITTING TABLE SYSTEM
   ============================================= */
.article-body .table-wrapper {
  margin: 36px -40px;
  padding: 0 40px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.article-body table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  overflow: hidden;
  margin: 0;
  font-family: var(--font-body);
  font-size: 14px;
  table-layout: auto;
}

.article-body table thead th {
  background: var(--navy);
  color: var(--white);
  font-size: 12px;
  font-weight: 700;
  padding: 14px 18px;
  text-align: left;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  white-space: nowrap;
  border-bottom: 2px solid var(--navy);
}

.article-body table thead th:first-child {
  border-radius: 11px 0 0 0;
}

.article-body table thead th:last-child {
  border-radius: 0 11px 0 0;
}

.article-body table tbody td {
  padding: 13px 18px;
  border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
  vertical-align: top;
}

.article-body table tbody tr:last-child td {
  border-bottom: none;
}

.article-body table tbody tr:nth-child(even) {
  background: var(--gray-50);
}

.article-body table tbody tr:hover {
  background: var(--sky-pale);
}

/* Auto-fit: first column is bold/label */
.article-body table tbody td:first-child {
  font-weight: 700;
  color: var(--navy);
  white-space: nowrap;
}

/* Checkmark and X styling in tables */
.article-body table td .yes {
  color: var(--green);
  font-weight: 700;
}

.article-body table td .no {
  color: var(--red);
  font-weight: 700;
}

.article-body table td .partial {
  color: var(--amber);
  font-weight: 700;
}

/* Table caption / label */
.article-body .table-caption {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--gray-400);
  font-style: italic;
  margin-top: 12px;
  margin-bottom: 32px;
  text-align: center;
}

/* =============================================
   CALLOUT BOX (for key insights)
   ============================================= */
.callout-box {
  margin: 36px 0;
  padding: 28px 32px;
  background: linear-gradient(135deg, var(--sky-pale), #F0F7FF);
  border: 1px solid #BFDBFE;
  border-radius: 14px;
  position: relative;
}

.callout-box::before {
  content: '💡';
  position: absolute;
  top: -14px;
  left: 24px;
  background: var(--white);
  padding: 4px 10px;
  border-radius: 8px;
  font-size: 18px;
  border: 1px solid #BFDBFE;
}

.callout-box p {
  font-family: var(--font-body) !important;
  font-size: 15px !important;
  color: var(--navy) !important;
  line-height: 1.65 !important;
  margin-bottom: 0 !important;
  font-weight: 500;
}

/* =============================================
   CTA SECTION (bottom of article)
   ============================================= */
.article-cta {
  margin: 60px 0 0;
  padding: 48px;
  background: var(--navy);
  border-radius: 20px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.article-cta::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(66,165,245,0.2), transparent 65%);
  border-radius: 50%;
}

.article-cta-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--sky);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 14px;
  position: relative;
  z-index: 2;
}

.article-cta-title {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.3;
  margin-bottom: 10px;
  position: relative;
  z-index: 2;
}

.article-cta-desc {
  font-size: 15px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 28px;
  position: relative;
  z-index: 2;
}

.article-cta-btn {
  display: inline-block;
  background: var(--sky);
  color: var(--navy);
  padding: 16px 40px;
  border-radius: 60px;
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  transition: background 0.2s;
  position: relative;
  z-index: 2;
}

.article-cta-btn:hover {
  background: var(--sky-light);
  text-decoration: none;
}

/* =============================================
   READING PROGRESS BAR
   ============================================= */
.progress-bar {
  position: fixed;
  top: 72px; /* Matches our base.html nav height */
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--sky), var(--blue));
  z-index: 999;
  transition: width 0.1s linear;
}

/* =============================================
   SHARE SIDEBAR
   ============================================= */
.share-sidebar {
  position: fixed;
  left: calc(50% - 460px);
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 50;
}

.share-btn {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--gray-500);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.share-btn:hover {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
  text-decoration: none;
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1100px) {
  .share-sidebar { display: none; }
}

@media (max-width: 768px) {
  .hero-title { font-size: 30px; }
  .article-body { padding: 36px 20px 60px; }
  .article-body p { font-size: 16px; }
  .article-body h2 { font-size: 24px; }
  .article-body .table-wrapper { margin: 28px -20px; padding: 0 20px; width: auto; max-width: none; }
  .article-cta { padding: 32px 24px; }
}