/* ═══════════════════════════════════════════════════════════
   COURAGE LIBRARY — CASE STUDY  (case-study.css) — FINAL
   ═══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

/* ── CSS VARIABLES ────────────────────────────────────────── */
:root {
  --bg-primary: #FBFBF9; /* bone ivory */
  --bg-secondary: #F4F4F0;
  --surface: #FFFFFF;
  --text-primary: #111116; /* ink black */
  --text-secondary: #4B5563;
  --text-muted: #6B7280;
  
  --accent-color: #4F46E5; /* Indigo */
  --accent-color-rgb: 79, 70, 229;
  --accent-glow: rgba(79, 70, 229, 0.06);
  --secondary-color: #B48A30; /* Matte Gold */
  --border-color: #E6E5DF;
  --card-bg: linear-gradient(135deg, #FFFFFF, #F4F4F0);
  
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
}

[data-theme="dark"] {
  --bg-primary: #07070A; /* obsidian black */
  --bg-secondary: #0E0F14;
  --surface: #13141C;
  --text-primary: #F3F4F6;
  --text-secondary: #9CA3AF;
  --text-muted: #6B7280;
  
  --accent-color: #06B6D4; /* Vaporwave Cyan */
  --accent-color-rgb: 6, 182, 212;
  --accent-glow: rgba(6, 182, 212, 0.15);
  --secondary-color: #10B981; /* Vaporwave Emerald */
  --border-color: rgba(255, 255, 255, 0.06);
  --card-bg: linear-gradient(135deg, #13141C, #0E0F14);
}

/* ── KILL BLEEDING GLOBAL STYLES ─────────────────────────── */
header {
  position: static !important; background: transparent !important;
  backdrop-filter: none !important; box-shadow: none !important;
  height: auto !important; min-height: unset !important;
  z-index: auto !important; padding: 0 !important;
}
section:not(.cs-section):not(.cs-cta-section) {
  max-width: unset; padding: 0; margin: 0; scroll-margin-top: 0;
}
section:not(.cs-section):not(.cs-cta-section) h2 {
  all: unset; display: block; font-family: var(--font-heading);
}
.cs-section {
  padding: 0 0 3.5rem !important;
  margin: 0 !important;
  max-width: unset !important;
  position: relative !important;
}
.cs-section h2::before {
  display: none !important;
  content: none !important;
}
.cs-section h2::after {
  display: none !important;
  content: none !important;
}
footer:not(.cs-footer) { background: transparent; padding: 0; margin: 0; }
#particles-js, .scroll-progress, .custom-cursor,
.back-to-top, .cookie-consent { display: none !important; }

/* ── SCROLLBAR & FADE ANIMATION ──────────────────────────── */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: rgba(var(--accent-color-rgb), 0.25);
  border-radius: 4px;
  border: 2px solid var(--bg-primary);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-color);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.cs-hero {
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.cs-image-block {
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
  animation-delay: 0.12s;
}
.cs-section {
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
  animation-delay: 0.2s;
}

/* ── IDE SYNTAX HIGHLIGHTING ────────────────────────────── */
.tok-comment { color: #6272a4; font-style: italic; }
.tok-keyword { color: #ff79c6; font-weight: 600; }
.tok-string { color: #f1fa8c; }
.tok-number { color: #bd93f9; }
.tok-fn { color: #50fa7b; }
.tok-type { color: #8be9fd; }
.tok-op { color: #ff79c6; }

/* ── BASE ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── BACK NAV ─────────────────────────────────────────────── */
.cs-back-nav {
  position: fixed; 
  top: 1.2rem; 
  left: 50%; 
  transform: translateX(-50%); 
  width: 90%; 
  max-width: 840px; 
  z-index: 100;
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.6rem 1.6rem;
  background: rgba(7, 7, 10, 0.75);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(var(--accent-color-rgb),0.15);
  border-radius: 30px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
[data-theme="dark"] .cs-back-nav { 
  background: rgba(7, 7, 10, 0.75); 
  border-color: rgba(var(--accent-color-rgb),0.15);
}
[data-theme="light"] .cs-back-nav { 
  background: rgba(251, 251, 249, 0.8); 
  border-color: var(--border-color); 
  box-shadow: 0 10px 30px rgba(0,0,0,0.06);
}
.cs-back-btn, .cs-live-btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.84rem; font-weight: 500; text-decoration: none;
  padding: 0.38rem 0.9rem; border-radius: 25px;
  transition: all 0.25s ease; white-space: nowrap;
}
.cs-back-btn { color: var(--text-secondary); border: 1px solid rgba(var(--accent-color-rgb),0.15); }
.cs-back-btn:hover { color: var(--accent-color); border-color: var(--accent-color); background: rgba(var(--accent-color-rgb),0.06); transform: translateX(-2px); }
.cs-live-btn { background: var(--accent-color); color: #07070A; font-weight: 600; border: none; }
.cs-live-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(var(--accent-color-rgb),0.4); }

/* ── MAIN LAYOUT ──────────────────────────────────────────── */
.cs-main {
  max-width: 840px;
  margin: 0 auto;
  padding: 6.5rem 2rem 4rem;
}

/* Ambient glow blobs */
body::before {
  content: "";
  position: fixed;
  top: -10%;
  left: 20%;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, rgba(var(--accent-color-rgb), 0.05) 0%, transparent 70%);
  z-index: -1;
  pointer-events: none;
  filter: blur(80px);
}
body::after {
  content: "";
  position: fixed;
  bottom: -10%;
  right: 10%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, rgba(var(--accent-color-rgb), 0.03) 0%, transparent 70%);
  z-index: -1;
  pointer-events: none;
  filter: blur(80px);
}

/* ── HERO ─────────────────────────────────────────────────── */
.cs-hero {
  text-align: left;
  margin-bottom: 2.8rem;
  display: flex; flex-direction: column; align-items: flex-start;
}
.cs-hero-badge {
  font-size: 0.7rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--accent-color);
  background: rgba(var(--accent-color-rgb),0.1);
  border: 1px solid rgba(var(--accent-color-rgb),0.25);
  border-radius: 20px; padding: 4px 14px;
  margin-bottom: 0.9rem;
}
.cs-title {
  font-size: clamp(2.2rem, 5.5vw, 3.2rem); font-weight: 800;
  color: var(--text-primary); line-height: 1.15; margin-bottom: 0.9rem;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--text-primary), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.cs-subtitle {
  font-size: 1rem; color: var(--text-secondary);
  line-height: 1.75; max-width: 680px; margin-bottom: 1.5rem;
}

/* Glass Meta Board */
.cs-meta-board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
  width: 100%;
  max-width: 740px;
  margin: 1.2rem 0 2rem;
  padding: 1.2rem;
  background: rgba(var(--accent-color-rgb), 0.03);
  border: 1px solid rgba(var(--accent-color-rgb), 0.1);
  border-radius: 16px;
  backdrop-filter: blur(8px);
}
.cs-meta-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  gap: 0.3rem;
  transition: all 0.3s ease;
  padding-left: 1.2rem;
  border-left: 1px solid rgba(var(--accent-color-rgb), 0.12);
}
.cs-meta-card:first-child {
  padding-left: 0;
  border-left: none;
}
.cs-meta-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 600;
}
.cs-meta-value {
  font-size: 0.85rem;
  color: var(--text-primary);
  font-weight: 600;
}
.cs-meta-value a {
  color: var(--accent-color);
  text-decoration: none;
  transition: opacity 0.2s;
}
.cs-meta-value a:hover {
  opacity: 0.8;
}

.cs-tech-pills { display: flex; flex-wrap: wrap; justify-content: flex-start; gap: 0.35rem; }
.cs-tech-pills span {
  font-size: 0.74rem; font-weight: 500;
  background: rgba(var(--accent-color-rgb),0.08); color: var(--accent-color);
  border: 1px solid rgba(var(--accent-color-rgb),0.2); border-radius: 20px; padding: 3px 10px;
  transition: all 0.2s;
}
.cs-tech-pills span:hover { background: rgba(var(--accent-color-rgb),0.16); transform: translateY(-1px); }

/* ── HERO IMAGE ───────────────────────────────────────────── */
.cs-image-block {
  margin: 0 0 2.5rem;
  border-radius: 14px; overflow: hidden;
  border: 1px solid rgba(var(--accent-color-rgb),0.15);
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
  max-height: 460px;
}
.cs-hero-img { width: 100%; height: 100%; object-fit: cover; object-position: top; display: block; transition: transform 0.6s ease; }
.cs-image-block:hover .cs-hero-img { transform: scale(1.015); }

/* ── SECTIONS ─────────────────────────────────────────────── */
/* KEY FIX: only padding-bottom for divider gap, margin-bottom is small */
.cs-section {
  padding-bottom: 3.5rem;
}
.cs-section:last-of-type {
  padding-bottom: 2rem;
}

.cs-section-label {
  display: inline-block;
  font-size: 0.67rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.14em;
  color: var(--accent-color);
  background: rgba(var(--accent-color-rgb),0.08);
  border: 1px solid rgba(var(--accent-color-rgb),0.18);
  border-radius: 20px; padding: 3px 11px;
  margin-bottom: 0.6rem;
}

.cs-section h2 {
  all: unset; display: block;
  font-family: var(--font-heading);
  font-size: clamp(1.3rem, 3vw, 1.75rem);
  font-weight: 700; color: var(--text-primary);
  margin-bottom: 0.7rem; line-height: 1.25;
}

.cs-section > p {
  color: var(--text-secondary);
  line-height: 1.78; margin-bottom: 0.7rem;
  font-size: 0.96rem; max-width: 740px;
}

.cs-section ul {
  list-style: none;
  padding-left: 0;
  margin: 1.2rem 0;
}
.cs-section li {
  position: relative;
  padding-left: 1.6rem;
  margin-bottom: 0.7rem;
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
}
.cs-section li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-weight: bold;
}

/* ── TERMINAL MOCK SYSTEM DESIGN ────────────────────────── */
.cs-terminal-mock {
  background: #0B0D13 !important;
  border: 1px solid rgba(var(--accent-color-rgb), 0.15) !important;
  border-radius: 12px !important;
  padding: 1.5rem 1.8rem 1.8rem !important;
  margin: 2rem 0 !important;
  font-family: 'Space Mono', 'Fira Code', 'Courier New', monospace;
  font-size: 0.86rem;
  line-height: 1.6;
  color: #B4C6E7 !important;
  box-shadow: 0 16px 40px rgba(0,0,0,0.45);
  position: relative;
  overflow-x: auto !important;
}
.cs-terminal-mock::before {
  content: "";
  display: block;
  width: 46px;
  height: 10px;
  background: radial-gradient(circle, #ff5f56 3px, transparent 4px),
              radial-gradient(circle, #ffbd2e 3px, transparent 4px),
              radial-gradient(circle, #27c93f 3px, transparent 4px);
  background-size: 14px 10px;
  background-position: 0 0, 14px 0, 28px 0;
  background-repeat: no-repeat;
  margin-bottom: 1.4rem;
  opacity: 0.85;
}

/* ── STATS ROW ────────────────────────────────────────────── */
.cs-stats-row {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1rem; margin-top: 1.5rem;
}
.cs-stat {
  background: var(--card-bg); border: 1px solid rgba(var(--accent-color-rgb),0.12);
  border-radius: 12px; padding: 1.2rem 0.8rem; text-align: center; transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.cs-stat:hover { 
  transform: translateY(-5px); 
  border-color: var(--accent-color); 
  box-shadow: 0 12px 30px rgba(var(--accent-color-rgb), 0.15); 
  background: rgba(var(--accent-color-rgb), 0.015);
}
.cs-stat-num { 
  display: block; 
  font-size: 2.2rem; 
  font-weight: 800; 
  line-height: 1; 
  margin-bottom: 0.35rem;
  background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.cs-stat-label { font-size: 0.7rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.08em; font-weight: 600; }

/* ── PROBLEM GRID ─────────────────────────────────────────── */
.cs-problem-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.2rem; margin-top: 1.5rem; }
.cs-problem-card { 
  background: var(--card-bg); border: 1px solid rgba(239,68,68,0.15); 
  border-radius: 12px; padding: 1.4rem; transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1); 
}
.cs-problem-card:hover { 
  border-color: #ef4444; 
  transform: translateY(-5px); 
  box-shadow: 0 12px 30px rgba(239,68,68,0.1); 
  background: rgba(239,68,68,0.015);
}
.cs-problem-card i { font-size: 1.3rem; color: #ef4444; margin-bottom: 0.8rem; display: block; }
.cs-problem-card h4 { font-size: 0.95rem; font-weight: 600; color: var(--text-primary); margin-bottom: 0.4rem; }
.cs-problem-card p { font-size: 0.85rem; color: var(--text-secondary); margin: 0; line-height: 1.6; }

/* ── FEATURE LIST ─────────────────────────────────────────── */
.cs-feature-list { display: flex; flex-direction: column; gap: 0.9rem; margin-top: 1.5rem; }
.cs-feature {
  display: flex; gap: 1.2rem; align-items: flex-start;
  background: var(--card-bg); border: 1px solid rgba(var(--accent-color-rgb),0.1);
  border-radius: 12px; padding: 1.3rem; transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.cs-feature:hover { 
  border-color: var(--accent-color); 
  transform: translateX(6px); 
  box-shadow: 0 8px 24px rgba(var(--accent-color-rgb), 0.08);
  background: rgba(var(--accent-color-rgb), 0.01);
}
.cs-feature-icon { 
  width: 44px; height: 44px; min-width: 44px; 
  background: rgba(var(--accent-color-rgb),0.08); 
  border-radius: 10px; display: flex; align-items: center; justify-content: center; 
  font-size: 1.05rem; color: var(--accent-color); flex-shrink: 0; 
  border: 1px solid rgba(var(--accent-color-rgb),0.15);
}
.cs-feature h4 { font-size: 0.98rem; font-weight: 600; color: var(--text-primary); margin-bottom: 0.25rem; }
.cs-feature p { font-size: 0.87rem; margin: 0; line-height: 1.65; color: var(--text-secondary); }

/* ── TECH DECISIONS ───────────────────────────────────────── */
.cs-decision-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.2rem; margin-top: 1.5rem; }
.cs-decision { 
  background: var(--card-bg); border: 1px solid rgba(var(--accent-color-rgb),0.1); 
  border-radius: 12px; padding: 1.4rem; transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1); 
}
.cs-decision:hover { 
  border-color: var(--accent-color); 
  transform: translateY(-4px); 
  box-shadow: 0 12px 30px rgba(var(--accent-color-rgb),0.1);
  background: rgba(var(--accent-color-rgb),0.015);
}
.cs-decision h4 { font-size: 0.95rem; font-weight: 600; color: var(--accent-color); margin-bottom: 0.6rem; display: flex; align-items: center; gap: 0.5rem; }
.cs-decision h4 i { font-size: 0.9rem; flex-shrink: 0; }
.cs-decision p { font-size: 0.86rem; margin: 0; line-height: 1.7; color: var(--text-secondary); }

/* ── CHALLENGES ───────────────────────────────────────────── */
.cs-challenge-list { display: flex; flex-direction: column; gap: 0.9rem; margin-top: 1.5rem; }
.cs-challenge { 
  display: flex; gap: 1.2rem; align-items: flex-start; 
  background: var(--card-bg); border: 1px solid rgba(var(--accent-color-rgb),0.08); 
  border-radius: 12px; padding: 1.3rem; transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1); 
}
.cs-challenge:hover { 
  border-color: var(--accent-color); 
  transform: translateX(4px); 
  box-shadow: 0 8px 24px rgba(var(--accent-color-rgb),0.08);
  background: rgba(var(--accent-color-rgb),0.01);
}
.cs-challenge-num { font-size: 2rem; font-weight: 800; color: rgba(var(--accent-color-rgb),0.18); line-height: 1; min-width: 40px; flex-shrink: 0; }
.cs-challenge h4 { font-size: 0.98rem; font-weight: 600; color: var(--text-primary); margin-bottom: 0.25rem; }
.cs-challenge p { font-size: 0.87rem; margin: 0; line-height: 1.7; color: var(--text-secondary); }

/* ── LEARNINGS ────────────────────────────────────────────── */
.cs-learning-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.2rem; margin-top: 1.5rem; }
.cs-learning-card {
  background: var(--card-bg); border: 1px solid rgba(var(--accent-color-rgb),0.1);
  border-radius: 12px; padding: 1.4rem;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex; flex-direction: column; gap: 0.9rem;
}
.cs-learning-card:hover { 
  transform: translateY(-5px); 
  border-color: var(--accent-color);
  box-shadow: 0 12px 30px rgba(var(--accent-color-rgb),0.12);
  background: rgba(var(--accent-color-rgb),0.015);
}
.cs-learning-card i { font-size: 1.4rem; color: var(--accent-color); }
.cs-learning-card p { font-size: 0.88rem; margin: 0; line-height: 1.75; color: var(--text-secondary); }

/* ── CTA SECTION ──────────────────────────────────────────── */
.cs-cta-section {
  text-align: center; padding: 2.5rem 2rem;
  background: var(--card-bg);
  border: 1px solid rgba(var(--accent-color-rgb),0.18);
  border-radius: 18px; margin-bottom: 2rem;
}
.cs-cta-section h2 {
  all: unset; display: block;
  font-family: var(--font-heading);
  font-size: clamp(1.3rem, 3vw, 1.7rem);
  font-weight: 700; color: var(--text-primary);
  margin-bottom: 0.4rem;
  text-align: center;
}
.cs-cta-section > p { color: var(--text-secondary); margin-bottom: 1.6rem; font-size: 0.93rem; }
.cs-cta-buttons { display: flex; gap: 0.85rem; justify-content: center; flex-wrap: wrap; }
.cs-cta-buttons .btn {
  padding: 0.72rem 1.5rem; font-size: 0.9rem; border-radius: 25px;
  text-decoration: none; font-weight: 600;
  display: inline-flex; align-items: center; gap: 0.4rem;
  transition: all 0.3s ease; background: var(--accent-color); color: #0f172a;
  border: 2px solid transparent;
}
.cs-cta-buttons .btn:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(var(--accent-color-rgb),0.35); }
.cs-cta-buttons .btn-outline { background: transparent; border: 2px solid var(--accent-color); color: var(--accent-color); }
.cs-cta-buttons .btn-outline:hover { background: var(--accent-color); color: #0f172a; }

.cs-footer {
  text-align: center !important;
  padding: 3rem 0 1.5rem !important;
  margin-top: 5rem !important;
  border: none !important;
  border-top: 1px solid rgba(var(--accent-color-rgb),0.15) !important;
  color: var(--text-muted) !important;
  background: transparent !important;
  font-size: 0.85rem !important;
  width: 100% !important;
  box-shadow: none !important;
}
.cs-footer p {
  margin: 0 !important;
}
.cs-footer a {
  color: var(--accent-color) !important;
  text-decoration: none !important;
  font-weight: 500 !important;
  transition: opacity 0.2s !important;
}
.cs-footer a:hover {
  opacity: 0.85 !important;
}

/* ── THEME TOGGLE ─────────────────────────────────────────── */
.theme-toggle {
  position: fixed; bottom: 1.5rem; right: 1.5rem;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--bg-secondary); border: 2px solid rgba(var(--accent-color-rgb),0.2);
  color: var(--text-primary); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2); z-index: 1000;
}
.theme-toggle:hover { border-color: var(--accent-color); transform: scale(1.1); }

.project-image-carousel {
  height: 380px !important;
  border-radius: 12px 12px 0 0 !important;
  overflow: hidden !important;
  background: #000 !important;
}
.event-image-carousel .carousel-container img {
  object-fit: contain !important;
  background: #000 !important;
  border-radius: 12px 12px 0 0 !important;
}

/* ── CAROUSEL THUMBNAILS OVERRIDES ──────────────────────── */
.carousel-thumbnails {
  display: flex !important;
  gap: 6px !important;
  justify-content: center !important;
  padding: 8px 10px !important;
  background: rgba(var(--accent-color-rgb), 0.03) !important;
  border: 1px solid rgba(var(--accent-color-rgb), 0.1) !important;
  border-top: none !important;
  border-radius: 0 0 12px 12px !important;
  overflow-x: auto !important;
  width: 100% !important;
  box-sizing: border-box !important;
  margin-top: 0 !important;
}
.carousel-thumbnails::-webkit-scrollbar {
  display: none !important;
}
img.carousel-thumb {
  width: 54px !important;
  height: 34px !important;
  object-fit: cover !important;
  border-radius: 4px !important;
  border: 1px solid rgba(var(--accent-color-rgb), 0.15) !important;
  cursor: pointer !important;
  transition: all 0.2s ease !important;
  opacity: 0.65 !important;
  background: #000 !important;
  display: inline-block !important;
  margin: 0 !important;
}
img.carousel-thumb.active {
  border-color: var(--accent-color) !important;
  opacity: 1 !important;
  transform: scale(1.04) !important;
  box-shadow: 0 0 8px rgba(var(--accent-color-rgb), 0.5) !important;
}
img.carousel-thumb:hover {
  opacity: 1 !important;
  border-color: var(--accent-color) !important;
}

.cs-metric-card {
  background: var(--card-bg) !important;
  border: 1px solid var(--border-color) !important;
  border-left: 3px solid var(--accent-color) !important;
  border-radius: 8px !important;
  padding: 1.2rem !important;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1) !important;
}
.cs-metric-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-color) !important;
  box-shadow: 0 8px 24px rgba(var(--accent-color-rgb), 0.08) !important;
}

/* ── MOBILE ───────────────────────────────────────────────── */
@media (max-width: 768px) {
  .cs-back-nav { padding: 0.7rem 1rem; }
  .cs-back-btn, .cs-live-btn { font-size: 0.78rem; padding: 0.32rem 0.75rem; }
  .cs-main { padding: 6.5rem 1.1rem 3rem !important; }
  .cs-section { padding-bottom: 2rem; margin-bottom: 2rem; }
  .cs-image-block { margin-bottom: 2rem; }
  .cs-stats-row { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
  .cs-stat-num { font-size: 1.5rem; }
  .cs-problem-grid { grid-template-columns: 1fr; }
  .cs-decision-grid { grid-template-columns: 1fr; }
  .cs-learning-grid { grid-template-columns: 1fr; }
  .cs-feature { padding: 1rem; }
  .cs-feature-icon { width: 36px; height: 36px; min-width: 36px; }
  .cs-challenge { padding: 1rem; }
  .cs-cta-section { padding: 1.8rem 1.1rem; }
  .cs-cta-buttons { flex-direction: column; align-items: center; }
  .cs-cta-buttons .btn { width: 100%; max-width: 260px; justify-content: center; }
  .theme-toggle { bottom: 1rem; right: 1rem; width: 38px; height: 38px; }
  .project-image-carousel { height: 220px !important; }
  .cs-hero { padding-left: 0; }
  .cs-meta-board { grid-template-columns: 1fr; gap: 1rem; }
  .cs-meta-card { padding-left: 0 !important; border-left: none !important; border-bottom: 1px solid rgba(var(--accent-color-rgb), 0.08); padding-bottom: 0.8rem; }
  .cs-meta-card:last-child { border-bottom: none; padding-bottom: 0; }
}
@media (max-width: 480px) {
  .cs-title { font-size: 1.6rem; }
  .cs-stats-row { grid-template-columns: 1fr !important; }
}

/* ── LIGHTBOX MODAL ────────────────────────────────────── */
.cs-lightbox {
  position: fixed; inset: 0; z-index: 10000;
  background: rgba(7,7,10,0.92);
  backdrop-filter: blur(12px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s ease;
  cursor: zoom-out;
}
.cs-lightbox.active {
  opacity: 1; pointer-events: auto;
}
.cs-lightbox img {
  max-width: 92%; max-height: 88%;
  object-fit: contain; border-radius: 8px;
  border: 1px solid rgba(var(--accent-color-rgb), 0.2);
  box-shadow: 0 24px 60px rgba(0,0,0,0.6);
  transform: scale(0.95);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.cs-lightbox.active img {
  transform: scale(1);
}

/* ── STICKY TABLE OF CONTENTS ───────────────────────────── */
.cs-toc {
  position: fixed;
  top: 7.5rem;
  right: calc(50% - 630px);
  width: 200px;
  z-index: 90;
  display: block;
}
.cs-toc-title {
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.8rem;
  padding-left: 0.8rem;
}
.cs-toc ul {
  list-style: none !important;
  padding-left: 0 !important;
  margin: 0 !important;
  border-left: 1px solid var(--border-color) !important;
  display: block !important;
  flex-direction: column !important;
}
.cs-toc li {
  position: relative !important;
  padding-left: 0 !important;
  margin-bottom: 0.4rem !important;
  display: list-item !important;
  width: 100% !important;
}
.cs-toc li::before {
  display: none !important;
}
.cs-toc a {
  display: block !important;
  font-size: 0.82rem !important;
  color: var(--text-secondary) !important;
  text-decoration: none !important;
  padding: 0.3rem 0.8rem !important;
  border-left: 2px solid transparent !important;
  margin-left: -1px !important;
  transition: all 0.2s ease !important;
  white-space: nowrap !important;
  overflow: hidden !important;
  text-overflow: ellipsis !important;
  background: transparent !important;
  border-radius: 0 !important;
  text-align: left !important;
}
.cs-toc a:hover {
  color: var(--accent-color) !important;
  padding-left: 1rem !important;
}
.cs-toc a.active {
  color: var(--accent-color) !important;
  font-weight: 600 !important;
  border-left-color: var(--accent-color) !important;
}

@media (max-width: 1280px) {
  .cs-toc {
    display: none !important;
  }
}

/* ── CLASSY SECTION TAKEAWAY CALLOUT ────────────────────── */
.cs-takeaway {
  background: rgba(var(--accent-color-rgb), 0.04) !important;
  border-left: 3px solid var(--accent-color) !important;
  padding: 1.1rem 1.3rem !important;
  border-radius: 0 10px 10px 0 !important;
  margin: 1.4rem 0 !important;
  font-size: 0.9rem !important;
  color: var(--text-secondary) !important;
  display: flex !important;
  align-items: flex-start !important;
  gap: 0.7rem !important;
}
.cs-takeaway i {
  color: var(--accent-color) !important;
  font-size: 1rem !important;
  margin-top: 0.15rem !important;
  flex-shrink: 0 !important;
}

/* ── PREMIUM CAROUSEL BUTTONS OVERRIDE ──────────────────── */
.project-image-carousel .carousel-btn {
  width: 40px !important;
  height: 40px !important;
  background: rgba(var(--bg-primary-rgb), 0.6) !important;
  backdrop-filter: blur(8px) !important;
  border: 1px solid rgba(var(--accent-color-rgb), 0.15) !important;
  color: var(--text-primary) !important;
  border-radius: 50% !important;
  font-size: 0.9rem !important;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15) !important;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1) !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  top: 50% !important;
}
.project-image-carousel .carousel-btn:hover {
  background: var(--accent-color) !important;
  color: #07070A !important;
  border-color: var(--accent-color) !important;
  box-shadow: 0 0 12px var(--accent-glow) !important;
  transform: translateY(-50%) scale(1.08) !important;
}