/* ═══════════════════════════════════════════════════════════
   SFVedas — Main Stylesheet
   Brand: Deep Salesforce Knowledge for Tech Leaders
   Author: Vishal Sharma · sfvedas.com
═══════════════════════════════════════════════════════════ */

/* ── CSS Variables ── */
:root {
  --off-white:     #F8F5F0;
  --warm-cream:    #F0EBE1;
  --deep-charcoal: #1E1E2E;
  --warm-grey:     #6B6B7B;
  --saffron:       #E8930A;
  --saffron-light: #F5A623;
  --saffron-dark:  #C97A08;
  --sf-blue:       #0070D2;
  --sage-green:    #2D7D52;
  --deep-navy:     #0D1B2A;
  --warm-white:    #EDE8E0;
  --light-border:  #E2DBD0;

  --bg:            var(--off-white);
  --bg-card:       #FFFFFF;
  --bg-secondary:  var(--warm-cream);
  --text-primary:  var(--deep-charcoal);
  --text-secondary:var(--warm-grey);
  --border:        var(--light-border);
  --nav-bg:        rgba(248,245,240,0.92);

  --font-display:  'Fraunces', Georgia, serif;
  --font-heading:  'DM Serif Display', Georgia, serif;
  --font-body:     'Source Serif 4', Georgia, serif;
  --font-ui:       'DM Sans', system-ui, sans-serif;
  --font-mono:     'JetBrains Mono', 'Courier New', monospace;

  --radius-sm:     6px;
  --radius-md:     12px;
  --radius-lg:     20px;
  --shadow-sm:     0 2px 8px rgba(30,30,46,0.06);
  --shadow-md:     0 8px 32px rgba(30,30,46,0.10);
  --shadow-lg:     0 20px 60px rgba(30,30,46,0.14);
  --transition:    0.25s cubic-bezier(0.4,0,0.2,1);
  --max-width:     1160px;
}

/* ── Dark Mode ── */
.dark-mode {
  --bg:            #0D1B2A;
  --bg-card:       #142338;
  --bg-secondary:  #0A1628;
  --text-primary:  #EDE8E0;
  --text-secondary:#9BA4B0;
  --border:        #1E3050;
  --nav-bg:        rgba(13,27,42,0.95);
}
.dark-mode .nav-link.active {
  color: var(--saffron-light);
  background: rgba(232,147,10,0.14);
  box-shadow: inset 0 0 0 1.5px rgba(232,147,10,0.38);
}
.dark-mode .nav-link:hover {
  background: rgba(232,147,10,0.10);
  color: var(--text-primary);
}
.dark-mode .theme-toggle {
  border-color: rgba(100,120,150,0.45);
}
.dark-mode .navbar::before {
  opacity: 0.50;
}

/* ── Salesforce Native Mode ── */
.salesforce-mode {
  --bg:            #F3F2F2;
  --bg-card:       #FFFFFF;
  --bg-secondary:  #EBF5FC;
  --text-primary:  #080707;
  --text-secondary:#514F4D;
  --border:        #DDDBDA;
  --nav-bg:        rgba(255, 255, 255, 0.92);

  --saffron:       #0176D3;
  --saffron-light: #1589EE;
  --saffron-dark:  #005FB2;

  --font-display:  'DM Sans', system-ui, sans-serif;
  --font-heading:  'DM Sans', system-ui, sans-serif;
  --font-body:     'DM Sans', system-ui, sans-serif;
}
.salesforce-mode .nav-link.active {
  color: var(--saffron);
  background: rgba(1, 118, 211, 0.08);
  box-shadow: inset 0 0 0 1.5px rgba(1, 118, 211, 0.25);
}
.salesforce-mode .nav-link:hover {
  background: rgba(1, 118, 211, 0.05);
  color: var(--saffron);
}
.salesforce-mode .theme-toggle {
  border-color: rgba(1, 118, 211, 0.4);
}
.salesforce-mode .navbar::before {
  opacity: 0.80;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.7;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── Container ── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Animations ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%       { transform: scale(1.15); opacity: 0.7; }
}
@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50%       { transform: translateY(-20px) rotate(3deg); }
}
@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

.animate-fade-up {
  opacity: 0;
  animation: fadeUp 0.7s ease forwards;
}

/* ═══════════════════════════════════════════════════════════
   NAVBAR
═══════════════════════════════════════════════════════════ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid rgba(180,168,148,0.20);
  transition: all var(--transition);
}
/* Saffron accent hairline at the very top */
.navbar::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--saffron) 20%, var(--saffron-light) 50%, var(--saffron) 80%, transparent 100%);
  opacity: 0.60;
  pointer-events: none;
}
.navbar.scrolled {
  box-shadow: 0 4px 32px rgba(30,30,46,0.10), 0 1px 0 rgba(160,150,130,0.16);
}
.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.nav-brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 0;
  transition: opacity var(--transition);
}
.nav-brand:hover { opacity: 0.82; }
.nav-brand::before {
  content: '';
  display: block;
  width: 38px;
  height: 34px;
  background: url('../images/logo-mark.svg') no-repeat center / contain;
  flex-shrink: 0;
  margin-right: 10px;
}
.brand-sf    { color: var(--saffron); }
.brand-vedas { color: var(--text-primary); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-link {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 7px 15px;
  border-radius: 8px;
  transition: color 0.18s ease, background 0.18s ease, box-shadow 0.18s ease, transform 0.18s cubic-bezier(0.34,1.56,0.64,1);
  letter-spacing: 0.01em;
  position: relative;
}
.nav-link:hover {
  color: var(--text-primary);
  background: rgba(232,147,10,0.07);
  transform: translateY(-1px);
}
.nav-link.active {
  color: var(--saffron-dark);
  background: rgba(232,147,10,0.10);
  font-weight: 600;
  box-shadow: inset 0 0 0 1.5px rgba(232,147,10,0.30);
  transform: none;
}
.nav-link.nav-cta {
  background: var(--saffron);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 2px 10px rgba(232,147,10,0.28);
}
.nav-link.nav-cta:hover {
  background: var(--saffron-dark);
  color: #fff;
  box-shadow: 0 4px 16px rgba(232,147,10,0.38);
  transform: translateY(-1px);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.theme-toggle {
  background: transparent;
  border: 1.5px solid rgba(180,168,148,0.45);
  border-radius: 50%;
  width: 36px; height: 36px;
  cursor: pointer;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s cubic-bezier(0.34,1.56,0.64,1);
  color: var(--text-secondary);
}
.theme-toggle:hover {
  border-color: var(--saffron);
  color: var(--saffron);
  background: rgba(232,147,10,0.07);
  transform: rotate(22deg) scale(1.08);
}
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-hamburger span {
  width: 22px; height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav-mobile {
  display: none;
  flex-direction: column;
  padding: 12px 24px 16px;
  border-top: 1px solid var(--border);
  gap: 2px;
}
.nav-mobile .nav-link {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
}
.nav-mobile.open { display: flex; }

/* ═══════════════════════════════════════════════════════════
   HERO
═══════════════════════════════════════════════════════════ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 120px 24px 80px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: float 8s ease-in-out infinite;
}
.hero-orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(232,147,10,0.12) 0%, transparent 70%);
  top: -100px; right: -100px;
  animation-delay: 0s;
}
.hero-orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(0,112,210,0.08) 0%, transparent 70%);
  bottom: -80px; left: -80px;
  animation-delay: 4s;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(232,147,10,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232,147,10,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
}
.dark-mode .hero-grid {
  background-image:
    linear-gradient(rgba(232,147,10,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232,147,10,0.06) 1px, transparent 1px);
}
.salesforce-mode .hero-orb-1 {
  background: radial-gradient(circle, rgba(1, 118, 211, 0.10) 0%, transparent 70%);
}
.salesforce-mode .hero-orb-2 {
  background: radial-gradient(circle, rgba(21, 137, 238, 0.06) 0%, transparent 70%);
}
.salesforce-mode .hero-grid {
  background-image:
    linear-gradient(rgba(1, 118, 211, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(1, 118, 211, 0.04) 1px, transparent 1px);
}
.hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 6px 16px;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 32px;
  box-shadow: var(--shadow-sm);
}
.badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--saffron);
  animation: pulse 2s ease-in-out infinite;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 24px;
}
.hero-title em {
  color: var(--saffron);
  font-style: italic;
}
.hero-sub {
  font-family: var(--font-body);
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}
.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 56px;
}
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  padding: 24px 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  display: inline-flex;
}
.stat { text-align: center; }
.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--saffron);
}
.stat-label {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}
.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 1;
}
.hero-scroll span {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--saffron), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

/* ═══════════════════════════════════════════════════════════
   BUTTONS
═══════════════════════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-ui);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 13px 28px;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.01em;
  text-decoration: none;
}
.btn-primary {
  background: var(--saffron);
  color: #fff;
  border-color: var(--saffron);
  box-shadow: 0 4px 14px rgba(232,147,10,0.3);
}
.btn-primary:hover {
  background: var(--saffron-dark);
  border-color: var(--saffron-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(232,147,10,0.4);
}
.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border);
}
.btn-ghost:hover {
  border-color: var(--saffron);
  color: var(--saffron);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--saffron);
  border-color: var(--saffron);
}
.btn-outline:hover {
  background: var(--saffron);
  color: #fff;
  transform: translateY(-2px);
}
.btn-gold {
  background: var(--saffron);
  color: #fff;
  border-color: var(--saffron);
  box-shadow: 0 4px 20px rgba(232,147,10,0.4);
}
.btn-gold:hover {
  background: #fff;
  color: var(--saffron);
  transform: translateY(-2px);
}

/* ═══════════════════════════════════════════════════════════
   SECTION COMMONS
═══════════════════════════════════════════════════════════ */
.section-label {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--saffron);
  margin-bottom: 12px;
}
.section-label--light { color: var(--saffron-light); }
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.section-title em { color: var(--saffron); font-style: italic; }
.section-title--light { color: #fff; }
.section-desc {
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.8;
}
.section-body {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 16px;
}
.section-body--light { color: rgba(237,232,224,0.8); }
.section-body strong { color: var(--text-primary); font-weight: 600; }
.section-header { margin-bottom: 52px; }

/* ═══════════════════════════════════════════════════════════
   PHILOSOPHY SECTION
═══════════════════════════════════════════════════════════ */
.philosophy {
  padding: 100px 0;
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}
.philosophy::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--saffron), transparent);
}
.philosophy-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.philosophy-text .section-title { margin-bottom: 20px; }
.philosophy-text .btn { margin-top: 12px; }
.philosophy-pillars {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.pillar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.pillar::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--saffron);
  opacity: 0;
  transition: opacity var(--transition);
}
.pillar:hover {
  border-color: var(--saffron);
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}
.pillar:hover::before { opacity: 1; }
.pillar-icon {
  font-size: 1.4rem;
  margin-bottom: 10px;
}
.pillar h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.pillar p {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ═══════════════════════════════════════════════════════════
   TUTORIALS SECTION
═══════════════════════════════════════════════════════════ */
.tutorials-section {
  padding: 100px 0;
}
.tutorials-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
  margin-bottom: 48px;
}
.tutorial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}
.tutorial-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(to right, var(--saffron), var(--sf-blue));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.tutorial-card:hover {
  border-color: var(--saffron);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.tutorial-card:hover::after { transform: scaleX(1); }
.tutorial-card--featured {
  grid-column: span 1;
  background: linear-gradient(135deg, var(--deep-navy) 0%, #142338 100%);
  border-color: rgba(232,147,10,0.3);
}
.tutorial-card--featured .card-title { color: var(--warm-white); }
.tutorial-card--featured .card-excerpt { color: rgba(237,232,224,0.7); }
.tutorial-card--featured .card-author span { color: rgba(237,232,224,0.6); }
.card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.card-tag {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 10px;
  border-radius: 100px;
  background: var(--bg-secondary);
  color: var(--saffron);
  border: 1px solid rgba(232,147,10,0.2);
}
.card-tag--free {
  background: rgba(45,125,82,0.1);
  color: var(--sage-green);
  border-color: rgba(45,125,82,0.2);
}
.tutorial-card--featured .card-tag {
  background: rgba(232,147,10,0.15);
  border-color: rgba(232,147,10,0.3);
}
.card-read {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-left: auto;
}
.card-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  line-height: 1.4;
  color: var(--text-primary);
  flex-grow: 1;
}
.card-excerpt {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  margin-top: auto;
}
.card-author {
  display: flex;
  align-items: center;
  gap: 8px;
}
.author-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--saffron);
  color: #fff;
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.card-author span {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.card-link {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--saffron);
  transition: all var(--transition);
}
.card-link:hover { gap: 4px; letter-spacing: 0.02em; }
.tutorials-cta { text-align: center; }

/* ═══════════════════════════════════════════════════════════
   LEARNING PATHS
═══════════════════════════════════════════════════════════ */
.paths-section {
  padding: 100px 0;
  background: var(--bg-secondary);
}
.paths-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.path-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all var(--transition);
  cursor: pointer;
}
.path-card:hover {
  border-color: var(--saffron);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.path-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: rgba(232,147,10,0.15);
  line-height: 1;
  margin-bottom: 4px;
}
.path-card:hover .path-num { color: rgba(232,147,10,0.25); }
.path-card h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: var(--text-primary);
}
.path-card p {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.65;
  flex-grow: 1;
}
.path-arrow {
  font-size: 1.3rem;
  color: var(--saffron);
  transition: transform var(--transition);
  margin-top: 8px;
}
.path-card:hover .path-arrow { transform: translateX(6px); }

/* ═══════════════════════════════════════════════════════════
   QUOTE SECTION
═══════════════════════════════════════════════════════════ */
.quote-section {
  padding: 80px 0;
  background: var(--bg);
}
.brand-quote {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
  position: relative;
}
.quote-mark {
  font-family: var(--font-display);
  font-size: 8rem;
  color: var(--saffron);
  opacity: 0.15;
  line-height: 0.6;
  display: block;
  margin-bottom: -20px;
  user-select: none;
}
.brand-quote p {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.5vw, 1.45rem);
  font-style: italic;
  color: var(--text-primary);
  line-height: 1.7;
  margin-bottom: 24px;
}
.brand-quote cite {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-style: normal;
}

/* ═══════════════════════════════════════════════════════════
   PREMIUM SECTION
═══════════════════════════════════════════════════════════ */
.premium-section {
  padding: 100px 0;
  background: var(--deep-navy);
  position: relative;
  overflow: hidden;
}
.premium-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 80% 50%, rgba(232,147,10,0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 20% 50%, rgba(0,112,210,0.06) 0%, transparent 60%);
}
.premium-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.premium-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.pf-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  padding: 16px;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--warm-white);
  transition: all var(--transition);
}
.pf-item:hover {
  background: rgba(232,147,10,0.1);
  border-color: rgba(232,147,10,0.3);
}
.pf-icon { font-size: 1.2rem; }

/* ═══════════════════════════════════════════════════════════
   NEWSLETTER
═══════════════════════════════════════════════════════════ */
.newsletter-section {
  padding: 80px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.newsletter-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
}
.newsletter-text h2 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.newsletter-text h2 em { color: var(--saffron); font-style: italic; }
.newsletter-text p {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: var(--text-secondary);
  max-width: 420px;
  line-height: 1.6;
}
.newsletter-form {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.newsletter-input {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  padding: 13px 20px;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition);
  min-width: 240px;
}
.newsletter-input:focus { border-color: var(--saffron); }
.newsletter-input::placeholder { color: var(--text-secondary); }

/* ═══════════════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════════════ */
.footer {
  background: var(--deep-navy);
  padding: 72px 0 32px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 60px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 32px;
}
.footer-brand .nav-brand {
  font-size: 1.6rem;
  margin-bottom: 16px;
  display: inline-block;
}
.footer-brand .brand-vedas { color: var(--warm-white); }
.footer-tagline {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-style: italic;
  color: rgba(237,232,224,0.6);
  line-height: 1.6;
  margin-bottom: 8px;
}
.footer-domain {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--saffron);
}
.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.footer-col h4 {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(237,232,224,0.4);
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: rgba(237,232,224,0.65);
  padding: 4px 0;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--saffron); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom p {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: rgba(237,232,224,0.35);
}
.footer-philosophy {
  font-family: var(--font-body);
  font-style: italic;
  color: rgba(232,147,10,0.5) !important;
}

/* ═══════════════════════════════════════════════════════════
   TUTORIAL PAGE
═══════════════════════════════════════════════════════════ */
.tutorial-hero {
  padding: 120px 0 60px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}
.tutorial-breadcrumb {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}
.tutorial-breadcrumb a { color: var(--saffron); }
.tutorial-breadcrumb a:hover { text-decoration: underline; }
.tutorial-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.tutorial-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
  color: var(--text-primary);
  max-width: 820px;
  margin-bottom: 20px;
}
.tutorial-excerpt {
  font-family: var(--font-body);
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 680px;
  line-height: 1.8;
  margin-bottom: 24px;
}
.tutorial-info {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.tinfo-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--text-secondary);
}
.tinfo-icon { font-size: 0.9rem; }

/* Tutorial Body */
.tutorial-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 48px;
  padding: 60px 0 100px;
  align-items: start;
}
.tutorial-body {
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text-primary);
}
.tutorial-body h2 {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 48px 0 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
}
.tutorial-body h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--text-primary);
  margin: 32px 0 12px;
}
.tutorial-body p { margin-bottom: 20px; }
.tutorial-body strong { font-weight: 600; color: var(--text-primary); }
.tutorial-body em { color: var(--saffron); font-style: italic; }
.tutorial-body ul, .tutorial-body ol {
  margin: 16px 0 24px 24px;
}
.tutorial-body li { margin-bottom: 8px; }
.tutorial-body code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--bg-secondary);
  color: var(--saffron);
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid var(--border);
}
.tutorial-body pre {
  background: var(--deep-navy);
  border-radius: var(--radius-md);
  padding: 24px;
  overflow-x: auto;
  margin: 24px 0;
  border: 1px solid rgba(232,147,10,0.2);
}
.tutorial-body pre code {
  background: none;
  border: none;
  color: var(--warm-white);
  font-size: 0.875rem;
  padding: 0;
}
.tutorial-callout {
  background: linear-gradient(135deg, rgba(232,147,10,0.08), rgba(232,147,10,0.04));
  border: 1px solid rgba(232,147,10,0.25);
  border-left: 4px solid var(--saffron);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin: 28px 0;
}
.tutorial-callout p { margin: 0; }
.tutorial-callout strong { color: var(--saffron); }

/* Sidebar */
.tutorial-sidebar { position: sticky; top: 88px; }
.sidebar-toc {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 24px;
}
.sidebar-toc h4 {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: 16px;
}
.toc-list { list-style: none; }
.toc-list li { margin-bottom: 6px; }
.toc-list a {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--text-secondary);
  display: block;
  padding: 4px 8px;
  border-radius: 4px;
  transition: all var(--transition);
}
.toc-list a:hover {
  color: var(--saffron);
  background: var(--bg-secondary);
}
.sidebar-cta {
  background: var(--deep-navy);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
}
.sidebar-cta h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--warm-white);
  margin-bottom: 8px;
}
.sidebar-cta p {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: rgba(237,232,224,0.6);
  margin-bottom: 16px;
  line-height: 1.5;
}

/* Sidebar next tutorial */
.sidebar-next {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
}
.sidebar-next + .sidebar-next {
  margin-top: 12px;
}
.sidebar-next h4 {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--saffron);
  margin-bottom: 12px;
}
.sidebar-next-link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-decoration: none;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  transition: all var(--transition);
  position: relative;
}
.sidebar-next-link:hover {
  border-color: var(--saffron);
  background: rgba(232,147,10,0.05);
}
.sidebar-next-id {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--saffron);
  letter-spacing: 0.06em;
}
.sidebar-next-title {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.4;
}
.sidebar-next-arrow {
  font-size: 0.85rem;
  color: var(--saffron);
  margin-top: 4px;
  font-weight: 600;
}

/* Quiz */
.quiz-section {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin: 48px 0;
}
.quiz-section h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 24px;
  border: none !important;
  padding: 0 !important;
}
.quiz-question { margin-bottom: 28px; }
.quiz-question p {
  font-family: var(--font-ui);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.quiz-options { display: flex; flex-direction: column; gap: 8px; }
.quiz-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--text-primary);
  transition: all var(--transition);
}
.quiz-option:hover {
  border-color: var(--saffron);
  background: rgba(232,147,10,0.05);
}
.quiz-option.correct {
  border-color: var(--sage-green);
  background: rgba(45,125,82,0.08);
  color: var(--sage-green);
}
.quiz-option.incorrect {
  border-color: #E53E3E;
  background: rgba(229,62,62,0.06);
  color: #E53E3E;
}
/* Quiz button variant (ENT-012+) */
.quiz-question button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 12px 16px;
  margin-bottom: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--text-primary);
  transition: all var(--transition);
}
.quiz-question button:last-of-type { margin-bottom: 0; }
.quiz-question button:hover { border-color: var(--saffron); background: rgba(232,147,10,0.05); }
.quiz-question button.correct { border-color: var(--sage-green); background: rgba(45,125,82,0.08); color: var(--sage-green); }
.quiz-question button.incorrect { border-color: #E53E3E; background: rgba(229,62,62,0.06); color: #E53E3E; }
.quiz-question button:disabled { cursor: default; }
.quiz-submit {
  background: var(--saffron);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  padding: 12px 28px;
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  margin-top: 8px;
}
.quiz-submit:hover { background: var(--saffron-dark); }
.quiz-result {
  margin-top: 20px;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 600;
  display: none;
}
.quiz-result.show { display: block; }
.quiz-result.pass {
  background: rgba(45,125,82,0.1);
  color: var(--sage-green);
  border: 1px solid rgba(45,125,82,0.3);
}
.quiz-result.fail {
  background: rgba(229,62,62,0.08);
  color: #E53E3E;
  border: 1px solid rgba(229,62,62,0.2);
}

/* ═══════════════════════════════════════════════════════════
   TUTORIALS LIST PAGE
═══════════════════════════════════════════════════════════ */
.page-hero {
  padding: 120px 0 64px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}
.page-hero .section-label { margin-bottom: 16px; display: block; }
.filter-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 48px;
  padding-top: 40px;
}
.filter-btn {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 100px;
  border: 1.5px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}
.filter-btn:hover, .filter-btn.active {
  border-color: var(--saffron);
  color: var(--saffron);
  background: rgba(232,147,10,0.06);
}

/* ═══════════════════════════════════════════════════════════
   ABOUT PAGE
═══════════════════════════════════════════════════════════ */
.about-founder {
  padding: 80px 0;
  background: var(--bg-secondary);
}
.founder-inner {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 48px;
  align-items: start;
}
.founder-avatar-lg {
  width: 180px; height: 180px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--saffron), var(--saffron-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 0 0 6px rgba(232,147,10,0.15);
}
.founder-name {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.founder-title {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--saffron);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
}
.founder-bio {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.85;
}

/* ═══════════════════════════════════════════════════════════
   COURSES PAGE
═══════════════════════════════════════════════════════════ */
.course-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}
.course-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--saffron);
}
.course-thumb {
  height: 180px;
  background: linear-gradient(135deg, var(--deep-navy), #1A3A5C);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  position: relative;
  overflow: hidden;
}
.course-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom right, rgba(232,147,10,0.1), transparent);
}
.course-body { padding: 28px; }
.course-price {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--saffron);
  margin-bottom: 4px;
}
.course-price span {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 400;
}
.course-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: 10px;
  line-height: 1.4;
}
.course-desc {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}
.course-features {
  list-style: none;
  margin-bottom: 24px;
}
.course-features li {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--text-secondary);
  padding: 4px 0;
  display: flex;
  align-items: center;
  gap: 8px;
}
.course-features li::before {
  content: '✓';
  color: var(--sage-green);
  font-weight: 700;
}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════════════════ */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .philosophy-inner { grid-template-columns: 1fr; gap: 48px; }
  .tutorials-grid { grid-template-columns: 1fr; }
  .paths-grid { grid-template-columns: 1fr; }
  .premium-inner { grid-template-columns: 1fr; gap: 48px; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: repeat(2,1fr); }
  .tutorial-layout { grid-template-columns: 1fr; }
  .tutorial-sidebar { position: static; }
  .founder-inner { grid-template-columns: 1fr; }
  .newsletter-inner { flex-direction: column; }
  .br-desktop { display: none; }
  .hero-stats { display: none; }
}
@media (max-width: 600px) {
  .hero { padding: 100px 20px 80px; }
  .footer-links { grid-template-columns: 1fr; }
  .newsletter-form { flex-direction: column; }
  .newsletter-input { min-width: unset; width: 100%; }
  .premium-features { grid-template-columns: 1fr; }
}
@media (min-width: 600px) and (max-width: 900px) {
  .tutorials-grid { grid-template-columns: 1fr 1fr; }
}

/* ═══════════════════════════════════════════════════════════
   CARD ID BADGE
═══════════════════════════════════════════════════════════ */
.card-id {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 7px;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════════
   READING PROGRESS BAR
═══════════════════════════════════════════════════════════ */
.reading-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  background: linear-gradient(to right, var(--saffron), var(--sf-blue));
  z-index: 2000;
  width: 0%;
  transition: width 0.1s linear;
}

/* ═══════════════════════════════════════════════════════════
   CALLOUT VARIANTS
═══════════════════════════════════════════════════════════ */
.callout {
  border-radius: var(--radius-md);
  padding: 18px 22px;
  margin: 28px 0;
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.callout-icon { font-size: 1.1rem; flex-shrink: 0; margin-top: 3px; }
.callout-body { flex: 1; }
.callout-body strong { display: block; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.07em; margin-bottom: 5px; font-family: var(--font-ui); }
.callout-body p { margin: 0; font-size: 0.92rem; line-height: 1.7; }
.callout--tip { background: rgba(45,125,82,0.08); border: 1px solid rgba(45,125,82,0.25); border-left: 4px solid var(--sage-green); }
.callout--tip .callout-body strong { color: var(--sage-green); }
.callout--warning { background: rgba(229,62,62,0.06); border: 1px solid rgba(229,62,62,0.2); border-left: 4px solid #E53E3E; }
.callout--warning .callout-body strong { color: #E53E3E; }
.callout--insight { background: rgba(0,112,210,0.06); border: 1px solid rgba(0,112,210,0.2); border-left: 4px solid var(--sf-blue); }
.callout--insight .callout-body strong { color: var(--sf-blue); }
.callout--key { background: linear-gradient(135deg,rgba(232,147,10,0.08),rgba(232,147,10,0.04)); border: 1px solid rgba(232,147,10,0.25); border-left: 4px solid var(--saffron); }
.callout--key .callout-body strong { color: var(--saffron); }

/* ═══════════════════════════════════════════════════════════
   SECTION SUMMARY BOX
═══════════════════════════════════════════════════════════ */
.section-summary {
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  margin: 32px 0;
  border: 1px solid var(--border);
}
.section-summary .ss-label {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--saffron);
  margin-bottom: 10px;
  display: block;
}
.section-summary ul { margin: 0 0 0 16px; }
.section-summary li { font-family: var(--font-ui); font-size: 0.875rem; color: var(--text-secondary); margin-bottom: 5px; }

/* ═══════════════════════════════════════════════════════════
   KEY TAKEAWAYS BOX
═══════════════════════════════════════════════════════════ */
.key-takeaways {
  background: linear-gradient(135deg, var(--deep-navy), #142338);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin: 48px 0;
}
.key-takeaways h2 {
  font-family: var(--font-display) !important;
  font-size: 1.4rem !important;
  font-weight: 700 !important;
  color: var(--warm-white) !important;
  margin: 0 0 24px !important;
  padding: 0 !important;
  border: none !important;
}
.key-takeaways ul { margin: 0; list-style: none; }
.key-takeaways li {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: rgba(237,232,224,0.82);
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0;
}
.key-takeaways li::before { content: '→'; color: var(--saffron); font-weight: 700; flex-shrink: 0; }
.key-takeaways li:last-child { border: none; padding-bottom: 0; }

/* ═══════════════════════════════════════════════════════════
   TUTORIAL STAT GRID
═══════════════════════════════════════════════════════════ */
.tutorial-stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 28px 0;
}
.tutorial-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  text-align: center;
}
.tutorial-stat-card .tsn {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--saffron);
  display: block;
  line-height: 1;
  margin-bottom: 6px;
}
.tutorial-stat-card .tsl {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--text-secondary);
  display: block;
  line-height: 1.4;
}

/* ═══════════════════════════════════════════════════════════
   RELATED TUTORIALS (inside tutorial page)
═══════════════════════════════════════════════════════════ */
.related-tutorials { margin: 48px 0 0; }
.related-tutorials h2, .related-tutorials h3 {
  font-family: var(--font-display) !important;
  font-size: 1.3rem !important;
  border: none !important;
  padding: 0 !important;
  margin: 0 0 20px !important;
}
.related-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; }
.related-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px;
  transition: all var(--transition);
  display: block;
}
.related-card:hover { border-color: var(--saffron); transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.related-card .card-id, .related-card .related-id { margin-bottom: 8px; display: inline-block; }
.related-card h4, .related-card .related-title { font-family: var(--font-ui) !important; font-size: 0.85rem !important; font-weight: 600; color: var(--text-primary) !important; line-height: 1.45; border: none !important; padding: 0 !important; margin: 0 !important; display: block; }

/* ═══════════════════════════════════════════════════════════
   SIDEBAR ADDITIONS
═══════════════════════════════════════════════════════════ */
.sidebar-download {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 20px;
}
.sidebar-download h4, .sidebar-progress h4 {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: 12px;
}
.sidebar-download a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--text-primary);
  transition: all var(--transition);
  margin-bottom: 8px;
}
.sidebar-download a:last-child { margin: 0; }
.sidebar-download a:hover { border-color: var(--saffron); color: var(--saffron); }
.sidebar-progress {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 20px;
}
.progress-track, .progress-bar-wrap {
  height: 8px;
  background: var(--bg-secondary);
  border-radius: 100px;
  overflow: hidden;
  margin-bottom: 6px;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(to right, var(--saffron), var(--sf-blue));
  border-radius: 100px;
  width: 0%;
  transition: width 0.2s ease;
}
.progress-pct {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--saffron);
  text-align: right;
  display: block;
}

/* ═══════════════════════════════════════════════════════════
   FILTER BAR OVERFLOW (for 14+ buttons)
═══════════════════════════════════════════════════════════ */
.filter-bar {
  overflow-x: auto;
  flex-wrap: nowrap !important;
  padding-bottom: 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.filter-bar::-webkit-scrollbar { height: 4px; }
.filter-bar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }
.filter-btn { white-space: nowrap; flex-shrink: 0; }

/* ═══════════════════════════════════════════════════════════
   TUTORIAL PAGE — UNIFIED CLASS ALIASES
   Covers both arch- (older) and plat- (newer) naming conventions
═══════════════════════════════════════════════════════════ */

/* ── Nav aliases ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: all var(--transition);
}
.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  flex-shrink: 0;
}
.nav-logo span { color: var(--text-primary); }
.nav-logo:first-letter, .nav-logo::first-letter { color: var(--saffron); }
.nav > .nav-container > a.nav-logo { color: var(--text-primary); }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.nav-links a:hover { color: var(--text-primary); background: var(--bg-secondary); }

/* ── Reading progress bar (plat- style) ── */
.reading-progress-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  z-index: 2001;
  background: var(--border);
}
.reading-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(to right, var(--saffron), var(--sf-blue));
  transition: width 0.1s linear;
}

/* ── Tutorial header (plat- style) ── */
.tutorial-header {
  padding: 100px 0 48px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}
.tutorial-header-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.tutorial-subtitle {
  font-family: var(--font-body);
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 680px;
  line-height: 1.8;
  margin-bottom: 24px;
}
.tutorial-author {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.tutorial-author .author-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--saffron);
  color: #fff;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.tutorial-author .author-info { display: flex; flex-direction: column; gap: 2px; }
.tutorial-author > div:first-child { display: flex; align-items: center; gap: 12px; }
.author-name {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}
.author-title {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.author-role {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.tutorial-stats {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.tutorial-stats span {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 100px;
}
.tutorial-stats-inline {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.tutorial-stats-inline span {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--text-secondary);
}

/* ── Tutorial article (plat- alias for tutorial-body) ── */
.tutorial-article {
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text-primary);
}
.tutorial-article h2 {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 48px 0 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
}
.tutorial-article h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--text-primary);
  margin: 32px 0 12px;
}
.tutorial-article p { margin-bottom: 20px; }
.tutorial-article strong { font-weight: 600; color: var(--text-primary); }
.tutorial-article em { color: var(--saffron); font-style: italic; }
.tutorial-article ul, .tutorial-article ol { margin: 16px 0 24px 24px; }
.tutorial-article li { margin-bottom: 8px; }
.tutorial-article code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--bg-secondary);
  color: var(--saffron);
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid var(--border);
}
.tutorial-article pre {
  background: var(--deep-navy);
  border-radius: var(--radius-md);
  padding: 24px;
  overflow-x: auto;
  margin: 24px 0;
  border: 1px solid rgba(232,147,10,0.2);
}
.tutorial-article pre code {
  background: none;
  border: none;
  color: var(--warm-white);
  font-size: 0.875rem;
  padding: 0;
}

/* ── Code block wrapper (plat-) ── */
.code-block {
  background: var(--deep-navy);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: 24px 0;
  border: 1px solid rgba(232,147,10,0.2);
  color: var(--warm-white);
  /* Default styles for raw text code blocks */
  padding: 24px;
  white-space: pre;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
}
/* Reset container padding and white-space when code blocks are properly nested inside pre/code elements */
.code-block:has(pre), .code-block:has(code) {
  padding: 0;
  white-space: normal;
}
.code-block pre {
  padding: 24px;
  margin: 0;
  background: none;
  border: none;
  color: var(--warm-white);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
  white-space: pre;
  overflow-x: auto;
}
.code-block pre code {
  background: none;
  border: none;
  color: inherit;
  font-size: inherit;
  padding: 0;
}

/* ── Callout title (plat- uses div.callout-title instead of strong inside callout-body) ── */
.callout-title {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 8px;
  display: block;
}
.callout--insight .callout-title { color: var(--sf-blue); }
.callout--key .callout-title { color: var(--saffron); }
.callout--tip .callout-title { color: var(--sage-green); }
.callout--warning .callout-title { color: #E53E3E; }
.callout p { margin: 0; font-size: 0.92rem; line-height: 1.7; }

/* ── Section summary aliases (plat-) ── */
.section-summary-title {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--saffron);
  margin-bottom: 10px;
  display: block;
}
.section-summary-list { margin: 0 0 0 16px; }
.section-summary-list li {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 5px;
}

/* ── Key takeaways aliases (plat-) ── */
.key-takeaways-title {
  font-family: var(--font-display) !important;
  font-size: 1.4rem !important;
  font-weight: 700 !important;
  color: var(--warm-white) !important;
  margin: 0 0 24px !important;
  padding: 0 !important;
  border: none !important;
  display: block;
}
.key-takeaways-list { margin: 0; list-style: none; }
.key-takeaways-list li {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: rgba(237,232,224,0.82);
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0;
}
.key-takeaways-list li::before { content: '→'; color: var(--saffron); font-weight: 700; flex-shrink: 0; }
.key-takeaways-list li:last-child { border: none; padding-bottom: 0; }

/* ── Quiz aliases (plat-) ── */
.quiz-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 24px;
  border: none !important;
  padding: 0 !important;
  display: block;
}
.quiz-question-text {
  font-family: var(--font-ui);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.quiz-feedback {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  margin-top: 8px;
  min-height: 0;
  transition: all var(--transition);
}
.feedback-correct {
  background: rgba(45,125,82,0.1);
  color: var(--sage-green);
  border: 1px solid rgba(45,125,82,0.3);
}
.feedback-incorrect {
  background: rgba(229,62,62,0.08);
  color: #E53E3E;
  border: 1px solid rgba(229,62,62,0.2);
}
.quiz-option.selected { border-color: var(--saffron); }

/* ── Related tutorials aliases (plat-) ── */
.related-title {
  font-family: var(--font-display) !important;
  font-size: 1.3rem !important;
  border: none !important;
  padding: 0 !important;
  margin: 0 0 20px !important;
  display: block;
}
.related-card-tag {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--saffron);
  margin-bottom: 8px;
  display: block;
}
.related-card-title {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.45;
}
.related-area {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--saffron);
  display: block;
  margin-bottom: 6px;
}

/* ── Sidebar card (plat- generic sidebar panel) ── */
.sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 24px;
}
.sidebar-card-title {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: 16px;
  display: block;
}

/* ── TOC (plat- uses nav.toc with a.toc-item) ── */
.toc { display: flex; flex-direction: column; gap: 2px; }
.toc-item {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--text-secondary);
  display: block;
  padding: 4px 8px;
  border-radius: 4px;
  transition: all var(--transition);
}
.toc-item:hover { color: var(--saffron); background: var(--bg-secondary); }

/* ── Progress bar (plat- sidebar progress) ── */
.progress-bar-container {
  height: 8px;
  background: var(--bg-secondary);
  border-radius: 100px;
  overflow: hidden;
  margin-bottom: 6px;
  border: 1px solid var(--border);
}
.progress-bar-fill {
  height: 100%;
  background: linear-gradient(to right, var(--saffron), var(--sf-blue));
  border-radius: 100px;
  width: 0%;
  transition: width 0.2s ease;
}
.progress-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--saffron);
  display: block;
}

/* ── Sidebar CTA (plat- uses h3/p/a classes) ── */
.sidebar-cta-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--warm-white);
  margin-bottom: 8px;
}
.sidebar-cta-text {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: rgba(237,232,224,0.6);
  margin-bottom: 16px;
  line-height: 1.5;
}
.sidebar-cta-btn {
  display: block;
  background: var(--saffron);
  color: #fff !important;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  text-align: center;
  transition: all var(--transition);
}
.sidebar-cta-btn:hover { background: var(--saffron-dark); }
/* arch- sidebar CTA uses h3 but CSS has h4 rules */
.sidebar-cta h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--warm-white);
  margin-bottom: 8px;
}
.sidebar-cta > h3 + p { color: rgba(237,232,224,0.6); font-size: 0.8rem; margin-bottom: 16px; }
.btn-cta {
  display: block;
  background: var(--saffron);
  color: #fff !important;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  text-align: center;
  transition: all var(--transition);
}
.btn-cta:hover { background: var(--saffron-dark); }
.btn-download {
  display: inline-block;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  margin-top: 8px;
}
.btn-download:hover { border-color: var(--saffron); color: var(--saffron); }
/* arch- sidebar headings use h3, CSS sidebar rules use h4 */
.sidebar-toc h3, .sidebar-progress h3, .sidebar-download h3 {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

/* ── Stat grid (arch- header stats) ── */
.stat-grid-section {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 32px 0;
}
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.stat-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  text-align: center;
}
.stat-value {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--saffron);
  display: block;
  line-height: 1.2;
  margin-bottom: 6px;
}
.stat-label {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--text-secondary);
  display: block;
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ── Tutorial-specific footer (plat- simplified footer) ── */
.footer .footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-brand { display: flex; flex-direction: column; gap: 4px; }
.footer-logo {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--warm-white);
}
.footer-logo span { color: var(--saffron); }
.footer-copy {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: rgba(237,232,224,0.35);
}
/* arch- tutorial footer uses .footer with .container directly */
.footer .footer-tagline {
  font-style: italic;
  color: rgba(232,147,10,0.5);
  font-size: 0.875rem;
  font-family: var(--font-body);
}

/* ── Tutorial header (arch- style - container inside header) ── */
.tutorial-header .container .tutorial-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.tutorial-area, .tutorial-id {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}
.tutorial-area { color: var(--saffron); }

/* ── Layout width fix: plat- uses tutorial-layout without a .container wrapper ── */
.tutorial-layout {
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}
/* cancel extra padding when already inside a .container (arch- style) */
.container > .tutorial-layout {
  padding-left: 0;
  padding-right: 0;
  max-width: 100%;
}

/* ── Premium Table Styling & Layout Fixes ── */
.comparison-table, .grid-table, .matrix-table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-family: var(--font-ui);
  font-size: 0.88rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
  display: block;
  overflow-x: auto;
}

/* Ensure the tables are responsive and don't stretch the container */
.comparison-table table, table.grid-table, table.matrix-table {
  width: 100% !important;
  border-collapse: collapse !important;
  margin: 0 !important;
  display: table;
}

/* For grid/matrix table rows and headers */
.comparison-table th, table.grid-table th, table.matrix-table th {
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
  border-bottom: 2px solid var(--border);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.comparison-table td, table.grid-table td, table.matrix-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  line-height: 1.5;
}

.comparison-table tr:last-child td, table.grid-table tr:last-child td, table.matrix-table tr:last-child td {
  border-bottom: none;
}

.comparison-table tr:hover td, table.grid-table tr:hover td, table.matrix-table tr:hover td {
  background: rgba(232, 147, 10, 0.02);
}