/* ==========================================================================
   MOHD SHABAB — PORTFOLIO DESIGN SYSTEM
   UI/UX Designer & Front-End Developer
   ========================================================================== */

/* --- 1. CSS CUSTOM PROPERTIES (DESIGN TOKENS) --- */
:root {
  /* Colors: Obsidian Luxury Dark Mode */
  --bg-black: #080a0f;
  --bg-surface-1: #0f121a;
  --bg-surface-2: #161b26;
  --bg-surface-3: #1f2636;
  --bg-glass: rgba(18, 22, 32, 0.75);
  --bg-glass-card: rgba(22, 27, 38, 0.6);

  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-medium: rgba(255, 255, 255, 0.12);
  --border-highlight: rgba(255, 255, 255, 0.2);

  /* Typography Colors */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;
  --text-muted: #475569;

  /* Brand Accents */
  --primary: #6366f1; /* Modern Indigo */
  --primary-hover: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.35);

  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;

  /* Dual-Lens Theme Tokens */
  --lens-design-color: #ec4899;
  --lens-design-glow: rgba(236, 72, 153, 0.3);
  --lens-dev-color: #06b6d4;
  --lens-dev-glow: rgba(6, 182, 212, 0.3);

  /* Dynamic Customizer Tokens */
  --custom-accent: #6366f1;
  --custom-radius: 12px;

  /* Typography */
  --font-display: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;

  /* Elevation Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 20px 40px -15px rgba(0, 0, 0, 0.7);
  --shadow-glow-primary: 0 0 35px -5px var(--primary-glow);
}

/* --- 2. CSS RESET & BASE STYLES --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: var(--bg-black);
  color: var(--text-primary);
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  width: 100%;
  position: relative;
  background-color: var(--bg-black);
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

input, textarea, select, [contenteditable="true"] {
  -webkit-user-select: auto;
  -moz-user-select: auto;
  -ms-user-select: auto;
  user-select: auto;
}

img, svg, canvas {
  -webkit-user-drag: none;
  -khtml-user-drag: none;
  -moz-user-drag: none;
  -o-user-drag: none;
  user-drag: none;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration-fast) ease;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  color: inherit;
}

ul, ol {
  list-style: none;
}

img, svg {
  display: block;
  max-width: 100%;
}

/* --- 3. AMBIENT GLOWS & BACKGROUNDS --- */
.ambient-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.45;
  transition: opacity 1s ease;
}

.glow-1 {
  width: 550px;
  height: 550px;
  top: -100px;
  right: -50px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.25) 0%, rgba(6, 182, 212, 0.1) 70%, transparent 100%);
  animation: glowFloat1 18s ease-in-out infinite alternate;
}

.glow-2 {
  width: 600px;
  height: 600px;
  bottom: 10%;
  left: -150px;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.15) 0%, rgba(99, 102, 241, 0.1) 70%, transparent 100%);
  animation: glowFloat2 22s ease-in-out infinite alternate;
}

@keyframes glowFloat1 {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-60px, 80px) scale(1.1); }
  100% { transform: translate(40px, 40px) scale(0.95); }
}

@keyframes glowFloat2 {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(80px, -60px) scale(1.15); }
  100% { transform: translate(-30px, 30px) scale(0.9); }
}

/* --- 4. DESIGN PERSPECTIVE 12-COL GRID OVERLAY --- */
.design-grid-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: 99;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-normal) var(--ease-spring), visibility var(--duration-normal);
}

.design-grid-overlay .grid-col {
  background: rgba(236, 72, 153, 0.035);
  border-left: 1px dashed rgba(236, 72, 153, 0.12);
  border-right: 1px dashed rgba(236, 72, 153, 0.12);
  height: 100vh;
}

/* Activated in Design Lens */
html[data-lens="design"] .design-grid-overlay {
  opacity: 1;
  visibility: visible;
}

/* Content switching between Design & Dev lens */
html[data-lens="design"] [data-lens-content="dev"] {
  display: none !important;
}

html[data-lens="dev"] [data-lens-content="design"] {
  display: none !important;
}

/* --- 5. LAYOUT CONTAINERS --- */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.section {
  padding: 100px 0;
  position: relative;
  z-index: 1;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 60px auto;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--primary);
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- 6. NAVIGATION & DUAL-LENS CONTROLLER --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-glass);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-subtle);
  transition: border-color var(--duration-fast) ease;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 20px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent-cyan) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.9375rem;
  color: #fff;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.35);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.logo-role {
  font-size: 0.71875rem;
  color: var(--text-tertiary);
  font-weight: 500;
  white-space: nowrap;
}

/* Center Primary Navigation Menu */
.nav-menu {
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap; /* NEVER BREAKS ONTO TWO LINES */
  padding: 6px 4px;
  transition: color var(--duration-fast) ease;
}

.nav-link:hover {
  color: #ffffff;
}

/* Right Actions Cluster (Lens Toggle + CmdK + Hire Me) */
.nav-actions-cluster {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.lens-toggle-pill {
  display: inline-flex;
  position: relative;
  background: rgba(15, 18, 26, 0.85);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  padding: 3px;
}

.lens-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  position: relative;
  z-index: 2;
  transition: color var(--duration-fast) ease;
  white-space: nowrap;
}

.lens-btn .lens-icon {
  width: 13px;
  height: 13px;
}

.lens-btn.active {
  color: #ffffff;
}

.lens-glider {
  position: absolute;
  top: 3px;
  left: 3px;
  height: calc(100% - 6px);
  width: calc(50% - 3px);
  border-radius: var(--radius-full);
  z-index: 1;
  transition: transform var(--duration-normal) var(--ease-spring), background var(--duration-normal) ease;
}

html[data-lens="design"] .lens-glider {
  transform: translateX(0);
  background: linear-gradient(135deg, #ec4899, #d946ef);
  box-shadow: 0 2px 10px rgba(236, 72, 153, 0.4);
}

html[data-lens="dev"] .lens-glider {
  transform: translateX(100%);
  background: linear-gradient(135deg, #0284c7, #06b6d4);
  box-shadow: 0 2px 10px rgba(6, 182, 212, 0.4);
}

.cmd-trigger-btn {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 6px 9px;
}

.nav-hire-btn {
  padding: 7px 14px;
  font-size: 0.8125rem;
}

.kbd-key {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 1px 4px;
  color: var(--text-secondary);
}

/* --- 7. BUTTON SYSTEM --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease-spring);
  white-space: nowrap;
}

.btn-sm {
  padding: 8px 14px;
  font-size: 0.8125rem;
}

.btn-md {
  padding: 10px 20px;
  font-size: 0.9375rem;
}

.btn-lg {
  padding: 14px 26px;
  font-size: 1rem;
  border-radius: var(--radius-lg);
}

.btn-block {
  width: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #4f46e5 100%);
  color: #fff;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
  background: var(--bg-surface-2);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
}

.btn-secondary:hover {
  background: var(--bg-surface-3);
  border-color: var(--border-highlight);
  transform: translateY(-2px);
}

.btn-outline {
  border: 1px solid var(--border-medium);
  color: var(--text-secondary);
  background: transparent;
}

.btn-outline:hover {
  color: var(--text-primary);
  border-color: var(--border-highlight);
  background: rgba(255, 255, 255, 0.04);
}

.btn-ghost {
  color: var(--text-secondary);
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, #0284c7 100%);
  color: #fff;
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.35);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(6, 182, 212, 0.5);
}

.btn-whatsapp {
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 18px rgba(37, 211, 102, 0.35);
}

.btn-whatsapp:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.5);
  color: #ffffff;
}

.btn-call {
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 18px rgba(2, 132, 199, 0.35);
}

.btn-call:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(2, 132, 199, 0.5);
  color: #ffffff;
}

.btn-arrow, .btn-icon, .external-icon {
  width: 18px;
  height: 18px;
  transition: transform var(--duration-fast) ease;
}

.btn:hover .btn-arrow {
  transform: translateX(3px);
}

.btn:active, .dock-btn:active {
  transform: scale(0.96) !important;
  transition: transform 0.1s ease;
}

/* Metallic Shimmer Sheen on Primary and WhatsApp Buttons */
.btn-primary, .btn-whatsapp {
  position: relative;
  overflow: hidden;
}

.btn-primary::after, .btn-whatsapp::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -70%;
  width: 50%;
  height: 200%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.22),
    transparent
  );
  transform: rotate(25deg);
  pointer-events: none;
  animation: buttonShimmer 6s ease-in-out infinite;
}

@keyframes buttonShimmer {
  0%, 75% { transform: translateX(0) rotate(25deg); }
  90%, 100% { transform: translateX(450%) rotate(25deg); }
}

/* Entrance Animations */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(28px);
    filter: blur(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

.animate-fade-up {
  opacity: 0;
  animation: fadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.delay-1 { animation-delay: 0.12s; }
.delay-2 { animation-delay: 0.22s; }
.delay-3 { animation-delay: 0.32s; }
.delay-4 { animation-delay: 0.42s; }
.delay-5 { animation-delay: 0.52s; }

/* Scroll-Driven Reveal Animations */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-on-scroll.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

.stagger-1 { transition-delay: 0.08s; }
.stagger-2 { transition-delay: 0.16s; }
.stagger-3 { transition-delay: 0.24s; }
.stagger-4 { transition-delay: 0.32s; }

/* Interactive Cursor Spotlight on Cards */
.case-study-card, .lab-card, .skill-quad-card, .recruiter-box {
  position: relative;
}

.case-study-card::before,
.lab-card::before,
.skill-quad-card::before,
.recruiter-box::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    600px circle at var(--mouse-x, -600px) var(--mouse-y, -600px),
    rgba(99, 102, 241, 0.12),
    transparent 70%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 1;
}

.case-study-card:hover::before,
.lab-card:hover::before,
.skill-quad-card:hover::before,
.recruiter-box:hover::before {
  opacity: 1;
}

/* Card 3D Perspective Elevation on Desktop */
@media (hover: hover) and (min-width: 992px) {
  .case-study-card {
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease;
  }
  .case-study-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 30px 65px -15px rgba(0, 0, 0, 0.8), 0 0 30px -10px var(--primary-glow);
  }
  .lab-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 45px -10px rgba(0, 0, 0, 0.7);
  }
}

/* --- 8. HERO SECTION --- */
.hero-section {
  padding: 90px 0 70px 0;
  text-align: center;
}

.hero-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-full);
  margin-bottom: 24px;
  font-size: 0.875rem;
  color: #a7f3d0;
}

.status-indicator {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 10px;
  height: 10px;
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-emerald);
  border-radius: 50%;
}

.status-ping {
  position: absolute;
  width: 16px;
  height: 16px;
  background-color: var(--accent-emerald);
  border-radius: 50%;
  opacity: 0.6;
  animation: ping 2s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes ping {
  75%, 100% {
    transform: scale(2);
    opacity: 0;
  }
}

.status-divider {
  color: rgba(255, 255, 255, 0.2);
}

.status-badge {
  font-weight: 700;
  color: #34d399;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5.5vw, 4.25rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: #ffffff;
  max-width: 980px;
  margin-bottom: 20px;
}

.text-gradient-design {
  background: linear-gradient(135deg, #f43f5e 0%, #ec4899 50%, #d946ef 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-dev {
  background: linear-gradient(135deg, #38bdf8 0%, #6366f1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtext {
  font-size: clamp(1.125rem, 1.8vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 820px;
  line-height: 1.7;
  margin-bottom: 24px;
}

.hero-subtext strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* Compact Hero Lens Banner (Pill capsule) */
.hero-lens-banner {
  max-width: 780px;
  width: 100%;
  margin: 0 auto 36px auto;
}

.lens-banner-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-medium);
  background: rgba(18, 22, 32, 0.7);
  backdrop-filter: blur(14px);
  transition: all var(--duration-normal) var(--ease-spring);
}

html[data-lens="design"] .lens-banner-inner {
  border-color: rgba(236, 72, 153, 0.35);
  background: rgba(236, 72, 153, 0.06);
  box-shadow: 0 0 25px rgba(236, 72, 153, 0.15);
}

html[data-lens="dev"] .lens-banner-inner {
  border-color: rgba(6, 182, 212, 0.35);
  background: rgba(6, 182, 212, 0.06);
  box-shadow: 0 0 25px rgba(6, 182, 212, 0.15);
}

.annotation-badge {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  white-space: nowrap;
  letter-spacing: 0.04em;
}

html[data-lens="design"] .annotation-badge {
  background: rgba(236, 72, 153, 0.2);
  color: #f472b6;
  border: 1px solid rgba(236, 72, 153, 0.4);
}

html[data-lens="dev"] .annotation-badge {
  background: rgba(6, 182, 212, 0.2);
  color: #38bdf8;
  border: 1px solid rgba(6, 182, 212, 0.4);
}

.annotation-message {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.4;
  text-align: left;
}

.annotation-message strong {
  color: var(--text-primary);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 56px;
}

/* Integrated Hero Metrics Bar */
.hero-metrics-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1080px;
  background: var(--bg-glass-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: 24px 32px;
  backdrop-filter: blur(16px);
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.6);
}

.metric-cell {
  flex: 1;
  text-align: left;
  padding: 0 16px;
}

.metric-cell:first-child {
  padding-left: 0;
}

.metric-cell:last-child {
  padding-right: 0;
}

.metric-divider {
  width: 1px;
  height: 48px;
  background: var(--border-medium);
}

.metric-value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1;
  margin-bottom: 4px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.metric-unit {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
}

.metric-label {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.metric-desc {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  line-height: 1.3;
}

/* --- 9. INTERACTIVE PRODUCT LAB --- */
.interactive-lab-section {
  background: linear-gradient(180deg, var(--bg-black) 0%, #0d1017 50%, var(--bg-black) 100%);
}

.lab-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.lab-card {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  transition: border-color var(--duration-normal) ease, box-shadow var(--duration-normal) ease;
}

.lab-card:hover {
  border-color: var(--border-highlight);
  box-shadow: 0 15px 40px -10px rgba(0, 0, 0, 0.6);
}

.lab-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.lab-badge-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.badge-fintech {
  background: rgba(99, 102, 241, 0.15);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.badge-saas {
  background: rgba(6, 182, 212, 0.15);
  color: #67e8f9;
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.badge-live {
  background: rgba(16, 185, 129, 0.15);
  color: #6ee7b7;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.lens-indicator-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-tertiary);
  background: rgba(255, 255, 255, 0.04);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.lab-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.lab-explanation {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
  min-height: 48px;
}

/* Executive ROI Context Banner */
.lab-business-context {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  margin-bottom: 20px;
}

.lab-business-context .ctx-pill {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #a5b4fc;
  background: rgba(99, 102, 241, 0.2);
  padding: 2px 8px;
  border-radius: 4px;
  white-space: nowrap;
}

.lab-business-context p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* Custom Calculator Box */
.calculator-box {
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.calc-control-group {
  margin-bottom: 24px;
}

.calc-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.calc-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.calc-val-display {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
}

.custom-slider {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--bg-surface-3);
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.custom-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid #ffffff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  cursor: pointer;
  transition: transform var(--duration-fast) ease;
}

.custom-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.slider-ticks {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  margin-top: 8px;
}

.tenure-pills-group {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}

.tenure-pill {
  padding: 8px 4px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  background: var(--bg-surface-3);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition: all var(--duration-fast) ease;
}

.tenure-pill.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.4);
}

.calc-results-panel {
  background: rgba(10, 13, 20, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 20px;
}

.result-primary {
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.result-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  margin-bottom: 4px;
}

.result-value {
  font-family: var(--font-display);
  font-size: 1.875rem;
  font-weight: 800;
  color: #ffffff;
}

.result-breakdown {
  display: flex;
  justify-content: space-between;
  font-size: 0.8125rem;
}

.breakdown-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.bd-label {
  color: var(--text-tertiary);
}

.bd-val {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-primary);
}

.calc-cta {
  margin-top: 4px;
}

/* Super Optical POS Demo Box */
.pos-demo-box {
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.pos-product-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.pos-prod-img-box {
  width: 56px;
  height: 56px;
  background: var(--bg-surface-3);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
}

.pos-prod-brand {
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--text-primary);
}

.pos-prod-sku {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  margin-top: 2px;
}

.pos-prod-price {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-cyan);
  font-size: 1.125rem;
  margin-top: 4px;
}

.rx-matrix {
  background: rgba(10, 13, 20, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px;
  margin-bottom: 20px;
}

.rx-row {
  display: grid;
  grid-template-columns: 80px repeat(3, 1fr);
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}

.rx-row:last-child {
  margin-bottom: 0;
}

.rx-head {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
}

.rx-eye {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 4px;
  text-align: center;
}

.rx-eye.od {
  background: rgba(99, 102, 241, 0.15);
  color: #a5b4fc;
}

.rx-eye.os {
  background: rgba(6, 182, 212, 0.15);
  color: #67e8f9;
}

.rx-input {
  background: var(--bg-surface-3);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 6px 8px;
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  text-align: center;
  outline: none;
  transition: border-color var(--duration-fast) ease;
}

.rx-input:focus {
  border-color: var(--accent-cyan);
}

/* POS Lens Index Pills */
.pos-lens-index-group {
  margin-bottom: 16px;
}

.lens-index-pills {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  margin-top: 6px;
}

.pos-pill {
  padding: 6px 4px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--bg-surface-3);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition: all var(--duration-fast) ease;
}

.pos-pill.active {
  background: var(--accent-cyan);
  border-color: var(--accent-cyan);
  color: #000;
  box-shadow: 0 2px 10px rgba(6, 182, 212, 0.4);
}

/* POS Summary Panel (Balances height with Calculator) */
.pos-summary-panel {
  background: rgba(10, 13, 20, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.pos-sum-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

.pos-sum-row strong {
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.pos-sum-total {
  padding-top: 6px;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-weight: 700;
}

.pos-sum-total strong {
  color: var(--accent-cyan);
  font-size: 1rem;
}

.pos-actions-row {
  display: flex;
  gap: 12px;
}

/* --- 10. FEATURED CASE STUDIES --- */
.case-studies-list {
  display: flex;
  flex-direction: column;
  gap: 56px;
}

.case-study-card {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--duration-normal) var(--ease-spring), border-color var(--duration-normal) ease, box-shadow var(--duration-normal) ease;
}

.case-study-card:hover {
  border-color: var(--border-highlight);
  transform: translateY(-4px);
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.7);
}

.cs-grid {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  min-height: 520px;
}

/* ALTERNATING ZIG-ZAG LAYOUT FOR COMPELLING EDITORIAL RHYTHM */
.case-study-card:nth-child(even) .cs-grid {
  grid-template-columns: 0.88fr 1.12fr;
}

.case-study-card:nth-child(even) .cs-content-col {
  order: 2;
  border-left: 1px solid var(--border-subtle);
}

.case-study-card:nth-child(even) .cs-preview-col {
  order: 1;
  border-left: none;
  border-right: 1px solid var(--border-subtle);
}

.cs-content-col {
  padding: 48px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.cs-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 0.8125rem;
}

.cs-category {
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.cs-client {
  color: var(--text-secondary);
}

.cs-year {
  color: var(--text-tertiary);
  background: rgba(255, 255, 255, 0.05);
  padding: 2px 8px;
  border-radius: 4px;
}

.cs-title {
  font-family: var(--font-display);
  font-size: clamp(1.625rem, 2.5vw, 2rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.cs-summary {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
}

/* Lens Panel Block */
.lens-panel-block {
  background: var(--bg-surface-2);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 24px;
  border-left: 3px solid var(--primary);
  transition: all var(--duration-normal) var(--ease-spring);
}

html[data-lens="design"] .lens-panel-block {
  border-left-color: var(--lens-design-color);
  background: rgba(236, 72, 153, 0.06);
}

html[data-lens="dev"] .lens-panel-block {
  border-left-color: var(--lens-dev-color);
  background: rgba(6, 182, 212, 0.06);
}

.lens-panel-title {
  font-weight: 700;
  font-size: 0.875rem;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
}

.lens-bullet-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.lens-bullet-list li {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
  position: relative;
  padding-left: 16px;
}

.lens-bullet-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--primary);
}

html[data-lens="design"] .lens-bullet-list li::before {
  color: var(--lens-design-color);
}

html[data-lens="dev"] .lens-bullet-list li::before {
  color: var(--lens-dev-color);
}

.cs-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}

.tag {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 4px 10px;
  background: var(--bg-surface-3);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
}

.cs-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Device Mockup Frame (Right Column) */
.cs-preview-col {
  background: radial-gradient(circle at center, rgba(99, 102, 241, 0.08) 0%, var(--bg-surface-2) 65%, #0d1017 100%);
  border-left: 1px solid var(--border-subtle);
  padding: 48px 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

/* Floating Metric Impact Badge */
.mockup-floating-badge {
  position: absolute;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  background: rgba(15, 18, 26, 0.88);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-full);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  animation: floatSubtle 4s ease-in-out infinite alternate;
}

.badge-top-right {
  top: 24px;
  right: 24px;
}

.badge-top-left {
  top: 24px;
  left: 24px;
}

@keyframes floatSubtle {
  from { transform: translateY(0); }
  to { transform: translateY(-6px); }
}

.badge-icon {
  font-size: 1.125rem;
}

.badge-info {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.badge-info strong {
  font-family: var(--font-display);
  font-size: 0.875rem;
  color: #ffffff;
}

.badge-info span {
  font-size: 0.6875rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.device-mockup-frame {
  width: 100%;
  max-width: 480px;
  background: var(--bg-surface-1);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  overflow: hidden;
  transition: transform var(--duration-normal) var(--ease-spring);
}

.case-study-card:hover .device-mockup-frame {
  transform: scale(1.02);
}

.mobile-frame {
  max-width: 320px;
}

.mockup-header-bar {
  background: rgba(15, 18, 26, 0.9);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.mockup-dots {
  display: flex;
  gap: 6px;
}

.mockup-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
}

.mockup-dots span:nth-child(1) { background: #ef4444; }
.mockup-dots span:nth-child(2) { background: #eab308; }
.mockup-dots span:nth-child(3) { background: #22c55e; }

.mockup-url {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-tertiary);
  background: rgba(255, 255, 255, 0.05);
  padding: 2px 10px;
  border-radius: 4px;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mockup-body {
  padding: 24px;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Mockup Content Styling */
.mock-step-indicator {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.mock-step-indicator .step {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.mock-step-indicator .step.active {
  color: var(--primary);
  font-weight: 700;
}

.mock-step-indicator .step span {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-surface-3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6875rem;
}

.mock-step-indicator .step.active span {
  background: var(--primary);
  color: #fff;
}

.step-line {
  flex: 1;
  height: 2px;
  background: var(--bg-surface-3);
  margin: 0 8px;
}

.step-line.active {
  background: var(--primary);
}

.mock-card-content {
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
}

.mock-badge {
  font-size: 0.6875rem;
  color: var(--primary);
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 4px;
}

.mock-stat-big {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 12px;
}

.mock-stat-big small {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-weight: 500;
  margin-left: 6px;
}

.mock-progress-bar {
  width: 100%;
  height: 6px;
  background: var(--bg-surface-3);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 16px;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
}

.mock-grid-info {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  font-size: 0.75rem;
}

.mock-grid-info span {
  color: var(--text-tertiary);
  display: block;
}

.mock-grid-info strong {
  color: var(--text-primary);
  font-family: var(--font-mono);
}

/* Enterprise Applicant Strip & Submit */
.mock-corp-strip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  font-size: 0.6875rem;
  font-family: var(--font-mono);
}

.mock-corp-strip .corp-id {
  color: var(--text-tertiary);
}

.mock-corp-strip .corp-verified {
  color: #6ee7b7;
}

.mock-action-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
  gap: 10px;
}

.mock-save-tag {
  font-size: 0.6875rem;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
}

.btn-mock-submit {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  font-size: 0.75rem;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
}

/* POS Mockup */
.mock-pos-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.pos-tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  background: rgba(16, 185, 129, 0.15);
  color: #6ee7b7;
  padding: 2px 8px;
  border-radius: 4px;
}

.pos-total {
  font-family: var(--font-mono);
  font-weight: 700;
  color: #ffffff;
}

.mock-pos-cart {
  background: var(--bg-surface-2);
  border-radius: var(--radius-md);
  padding: 12px;
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.cart-line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
}

.cart-line strong {
  display: block;
  font-size: 0.8125rem;
  color: var(--text-primary);
}

.cart-line small {
  font-size: 0.6875rem;
  color: var(--text-tertiary);
}

.mock-pos-footer {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.rx-pill {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  background: var(--bg-surface-3);
  padding: 4px 8px;
  border-radius: 4px;
  text-align: center;
  color: var(--accent-cyan);
}

.btn-mock-pay {
  background: var(--accent-cyan);
  color: #000;
  font-weight: 700;
  text-align: center;
  padding: 8px;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
}

/* Ecommerce Mock */
.mock-ecomm-banner {
  display: flex;
  justify-content: space-between;
  margin-bottom: 14px;
  font-weight: 700;
}

.mock-ecomm-banner small {
  display: block;
  font-size: 0.6875rem;
  color: var(--text-tertiary);
  font-weight: 400;
}

.mock-ecomm-items {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
}

.mock-item-pill {
  background: var(--bg-surface-2);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
}

.mock-ecomm-action {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.deliv-note {
  font-size: 0.6875rem;
  color: #6ee7b7;
  font-family: var(--font-mono);
}

.btn-mock-add {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  text-align: center;
  padding: 8px;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  cursor: pointer;
}

/* School ERP Mock & Balanced Duo Canvas */
.erp-canvas-wrap {
  display: flex;
  align-items: stretch;
  gap: 16px;
  width: 100%;
}

.school-companion-card {
  flex: 1;
  background: var(--bg-surface-1);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
}

.comp-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 8px;
}

.comp-tag {
  color: var(--accent-cyan);
  font-weight: 700;
}

.comp-stat {
  color: #6ee7b7;
}

.comp-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.75rem;
}

.comp-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-top: 4px;
  flex-shrink: 0;
}

.comp-dot.green { background: #10b981; }
.comp-dot.blue { background: #06b6d4; }

.comp-item strong {
  display: block;
  color: var(--text-primary);
  font-size: 0.75rem;
}

.comp-item small {
  color: var(--text-tertiary);
  font-size: 0.6875rem;
}

.mock-avatar-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.mock-avatar {
  font-size: 1.5rem;
  background: var(--bg-surface-2);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mock-avatar-row small {
  display: block;
  color: var(--text-tertiary);
  font-size: 0.75rem;
}

.mock-school-cards {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mock-alert-card {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mock-alert-card span {
  font-size: 0.6875rem;
  text-transform: uppercase;
  font-weight: 700;
}

.mock-alert-card strong {
  font-size: 0.8125rem;
}

.mock-alert-card.green {
  background: rgba(16, 185, 129, 0.15);
  color: #6ee7b7;
}

.mock-alert-card.blue {
  background: rgba(99, 102, 241, 0.15);
  color: #a5b4fc;
}

/* --- 11. DESIGN SYSTEM & TOKEN PLAYGROUND --- */
.ds-playground-card {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.ds-controls-bar {
  background: var(--bg-surface-2);
  border-bottom: 1px solid var(--border-subtle);
  padding: 24px 32px;
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 32px;
  align-items: center;
}

.ds-control-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ds-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.ds-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.ds-token-val {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--primary);
  font-weight: 700;
}

.ds-palette-pills {
  display: flex;
  gap: 10px;
}

.palette-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--btn-color);
  border: 2px solid transparent;
  transition: transform var(--duration-fast) ease, border-color var(--duration-fast) ease;
}

.palette-btn.active {
  border-color: #ffffff;
  transform: scale(1.15);
  box-shadow: 0 0 12px var(--btn-color);
}

.ds-sandbox-preview {
  padding: 32px;
  display: grid;
  grid-template-columns: 1fr 1fr 1.2fr;
  gap: 24px;
}

.sandbox-column {
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
}

.sandbox-subhead {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  margin-bottom: 16px;
}

.sandbox-btn-cluster {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.btn-ds-primary {
  background: var(--custom-accent);
  color: #fff;
  border-radius: var(--custom-radius);
  padding: 10px 18px;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
  transition: all var(--duration-normal) var(--ease-spring);
}

.btn-ds-secondary {
  border: 1px solid var(--border-medium);
  border-radius: var(--custom-radius);
  padding: 10px 18px;
  color: var(--text-primary);
}

.btn-ds-soft {
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--custom-radius);
  padding: 10px 18px;
  color: var(--text-secondary);
}

/* Stateful Segmented Control */
.ds-segmented-control {
  display: flex;
  background: var(--bg-surface-3);
  border: 1px solid var(--border-subtle);
  border-radius: var(--custom-radius, var(--radius-sm));
  padding: 3px;
  margin-bottom: 16px;
}

.seg-btn {
  flex: 1;
  padding: 6px 8px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-tertiary);
  border-radius: calc(var(--custom-radius, var(--radius-sm)) - 2px);
  transition: all var(--duration-fast) ease;
  text-align: center;
}

.seg-btn.active {
  background: var(--custom-accent, var(--primary));
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

/* Accessible Interactive Switch Toggle */
.ds-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface-3);
  border: 1px solid var(--border-subtle);
  border-radius: var(--custom-radius, var(--radius-sm));
  padding: 10px 14px;
  margin-bottom: 16px;
}

.toggle-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.ds-switch {
  width: 42px;
  height: 24px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  position: relative;
  cursor: pointer;
  transition: background var(--duration-fast) ease;
}

.ds-switch.active {
  background: var(--custom-accent, var(--primary));
  border-color: var(--custom-accent, var(--primary));
}

.switch-handle {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  background: #ffffff;
  border-radius: 50%;
  transition: transform var(--duration-fast) var(--ease-spring);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.ds-switch.active .switch-handle {
  transform: translateX(18px);
}

/* Status Strip with Live Pulser */
.ds-status-strip {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: var(--custom-radius, var(--radius-sm));
  padding: 8px 12px;
}

.ds-status-dot {
  width: 8px;
  height: 8px;
  background: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 8px #10b981;
  animation: pulseDot 2s infinite ease-in-out;
  flex-shrink: 0;
}

.ds-status-text {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: #6ee7b7;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.tag-ds {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: var(--custom-radius);
  background: var(--bg-surface-2);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.tag-ds.active {
  background: var(--custom-accent);
  color: #fff;
  border-color: var(--custom-accent);
}

.token-code-block {
  background: rgba(10, 13, 20, 0.9);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: #38bdf8;
  line-height: 1.6;
  overflow-x: auto;
}

/* --- 12. EXPERIENCE TIMELINE --- */
.timeline-container {
  max-width: 860px;
  margin: 0 auto;
  position: relative;
  padding-left: 32px;
}

.timeline-container::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 7px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary) 0%, rgba(255, 255, 255, 0.05) 100%);
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-marker {
  position: absolute;
  top: 6px;
  left: -32px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--bg-black);
  box-shadow: 0 0 10px var(--primary);
}

.timeline-card {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform var(--duration-fast) ease, border-color var(--duration-fast) ease;
}

.timeline-card:hover {
  transform: translateX(4px);
  border-color: var(--border-highlight);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 8px;
}

.role-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.company-name {
  font-size: 0.9375rem;
  color: var(--primary);
  font-weight: 600;
}

.role-duration {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  background: rgba(255, 255, 255, 0.04);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.role-summary {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.role-bullets {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.role-bullets li {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
  position: relative;
  padding-left: 18px;
}

.role-bullets li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--primary);
}

.education-item .edu-marker {
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
}

.education-item .company-name {
  color: var(--accent-cyan);
}

.edu-sub {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* --- 13. SKILLS MATRIX --- */
.skills-quad-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.skill-quad-card {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 32px;
  transition: transform var(--duration-normal) var(--ease-spring), border-color var(--duration-normal) ease;
}

.skill-quad-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-highlight);
}

.quad-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.quad-icon-box {
  font-size: 1.5rem;
}

.quad-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.quad-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.skill-pill-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-chip {
  font-size: 0.8125rem;
  padding: 6px 12px;
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  transition: all var(--duration-fast) ease;
}

.skill-chip:hover {
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.skill-chip.highlight {
  background: rgba(99, 102, 241, 0.15);
  border-color: rgba(99, 102, 241, 0.3);
  color: #c7d2fe;
}

/* --- 14. RECRUITER FAST-TRACK & CONTACT --- */
.recruiter-box {
  background: linear-gradient(135deg, rgba(22, 27, 38, 0.8) 0%, rgba(15, 18, 26, 0.9) 100%);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.recruiter-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 20px;
}

.recruiter-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 700;
  color: #ffffff;
  max-width: 760px;
  margin: 0 auto 16px auto;
  line-height: 1.2;
}

.recruiter-desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 36px auto;
  line-height: 1.6;
}

.recruiter-quick-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 40px;
}

.recruiter-meta-strip {
  display: flex;
  justify-content: center;
  gap: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--border-subtle);
  flex-wrap: wrap;
}

.rm-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
}

.rm-label {
  color: var(--text-tertiary);
}

.rm-val {
  color: var(--text-primary);
  font-weight: 600;
}

/* --- 15. STICKY QUICK-ACTION DOCK (BOTTOM) --- */
.quick-dock {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 90;
}

.dock-inner {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: rgba(15, 18, 26, 0.85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.dock-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--duration-fast) ease;
}

.dock-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.dock-divider {
  width: 1px;
  height: 20px;
  background: var(--border-medium);
}

.dock-kbd {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  background: rgba(255, 255, 255, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--text-primary);
}

/* --- 16. TOAST NOTIFICATIONS --- */
.toast-container {
  position: fixed;
  bottom: 84px;
  right: 24px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  background: var(--bg-surface-2);
  border: 1px solid var(--border-highlight);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--text-primary);
  pointer-events: auto;
  animation: toastIn 0.3s var(--ease-spring) forwards;
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* --- 17. MODALS --- */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(4, 6, 10, 0.8);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-normal) var(--ease-smooth), visibility var(--duration-normal);
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.8);
  transform: scale(0.96);
  transition: transform var(--duration-normal) var(--ease-spring);
  overflow: hidden;
}

.modal-backdrop.open .modal-dialog {
  transform: scale(1);
}

.modal-lg {
  max-width: 860px;
}

/* --- Executive Case Study Deck Modal --- */
.modal-case-deck {
  max-width: 1040px;
  width: 95%;
  max-height: 90vh;
  position: relative;
  background: var(--bg-surface-1);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  box-shadow: 0 30px 80px -10px rgba(0, 0, 0, 0.95);
}

.modal-top-accent-bar {
  height: 3px;
  width: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
  flex-shrink: 0;
}

.modal-eyebrow-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}

.modal-badge-chip {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  color: #6ee7b7;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.modal-close-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 6px 14px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--duration-fast) ease;
  cursor: pointer;
}

.modal-close-chip:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  border-color: var(--border-highlight);
}

.modal-close-chip kbd {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  background: rgba(0, 0, 0, 0.5);
  padding: 1px 5px;
  border-radius: 4px;
  color: var(--text-tertiary);
}

.modal-deck-body {
  padding: 28px 32px;
  overflow-y: auto;
  max-height: calc(90vh - 80px);
}

/* Two-Column Deck Layout */
.modal-deck-grid {
  display: grid;
  grid-template-columns: 310px 1fr;
  gap: 32px;
  align-items: start;
}

/* Left Sidebar in Modal */
.modal-deck-sidebar {
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: sticky;
  top: 0;
}

.deck-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.deck-stat-card {
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px;
  display: flex;
  flex-direction: column;
}

.deck-stat-val {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.2;
}

.deck-stat-label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--primary);
  margin-top: 2px;
}

.deck-stat-desc {
  font-size: 0.6875rem;
  color: var(--text-tertiary);
  margin-top: 4px;
  line-height: 1.3;
}

.deck-meta-card {
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.deck-meta-row {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 0.8125rem;
}

.deck-meta-row strong {
  font-size: 0.6875rem;
  text-transform: uppercase;
  color: var(--text-tertiary);
  letter-spacing: 0.05em;
}

.deck-meta-row span {
  color: var(--text-primary);
  font-weight: 500;
}

.deck-tags-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

.deck-pill {
  font-size: 0.6875rem;
  font-weight: 500;
  background: var(--bg-surface-3);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 3px 8px;
  color: var(--text-secondary);
}

.modal-deck-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Right Content Column in Modal */
.modal-deck-feed {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.deck-lead-p {
  font-size: 1.0625rem;
  color: var(--text-primary);
  line-height: 1.65;
  background: rgba(99, 102, 241, 0.05);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 14px 18px;
  margin-bottom: 8px;
}

.deck-card-block {
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  transition: border-color var(--duration-fast) ease;
}

.deck-card-block:hover {
  border-color: var(--border-highlight);
}

.block-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.block-icon {
  font-size: 1.25rem;
}

.block-heading {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-primary);
}

.block-text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.block-bullet-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 8px;
}

.block-bullet-item:last-child {
  margin-bottom: 0;
}

.block-bullet-item::before {
  content: '✓';
  color: #10b981;
  font-weight: 800;
  font-size: 0.875rem;
  flex-shrink: 0;
  margin-top: 1px;
}

.block-bullet-item strong {
  color: #ffffff;
}

@media (max-width: 860px) {
  .modal-deck-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .modal-deck-sidebar {
    position: static;
  }
  .modal-deck-body {
    padding: 20px;
  }
}

.modal-resume {
  max-width: 820px;
}

.modal-header {
  padding: 20px 28px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface-2);
}

.modal-eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary);
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close-btn {
  font-size: 1.5rem;
  line-height: 1;
  color: var(--text-tertiary);
  padding: 4px;
  transition: color var(--duration-fast) ease;
}

.modal-close-btn:hover {
  color: #fff;
}

.modal-body {
  padding: 28px;
  overflow-y: auto;
  max-height: calc(85vh - 75px);
}

/* Command Palette Specific */
.modal-cmd {
  max-width: 540px;
  border-radius: var(--radius-lg);
}

.cmd-input-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.cmd-search-icon {
  width: 20px;
  height: 20px;
  color: var(--text-tertiary);
}

.cmd-search-input {
  flex: 1;
  background: none;
  border: none;
  font-size: 1rem;
  color: #ffffff;
  outline: none;
  font-family: inherit;
}

.esc-key {
  font-size: 0.6875rem;
}

.cmd-results {
  padding: 12px;
  max-height: 360px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cmd-group-label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 8px 12px 4px 12px;
}

.cmd-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  text-align: left;
  transition: background var(--duration-fast) ease;
}

.cmd-item:hover, .cmd-item.selected {
  background: var(--bg-surface-2);
}

.cmd-icon {
  font-size: 1.125rem;
}

.cmd-text {
  flex: 1;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
}

.cmd-hint {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
}

/* Printable Resume inside Modal */
.printable-resume {
  background: #ffffff;
  color: #1e293b;
  padding: 32px;
  border-radius: 8px;
  font-size: 0.875rem;
  line-height: 1.5;
}

.printable-resume h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: #0f172a;
}

.res-subtitle {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #475569;
  margin-bottom: 6px;
}

.res-contact-row {
  font-size: 0.75rem;
  color: #64748b;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #0f172a;
}

.res-sec-title {
  font-size: 0.8125rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: #0f172a;
  border-bottom: 1px solid #cbd5e1;
  padding-bottom: 4px;
  margin: 16px 0 8px 0;
}

.res-p {
  font-size: 0.8125rem;
  color: #334155;
  margin-bottom: 8px;
}

.res-job {
  margin-bottom: 12px;
}

.res-job-title-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: #0f172a;
}

.res-consult {
  font-size: 0.75rem;
  font-weight: 600;
  color: #475569;
}

.res-job-ul {
  list-style: disc;
  margin-left: 16px;
  margin-top: 4px;
}

.res-job-ul li {
  font-size: 0.75rem;
  color: #334155;
  margin-bottom: 3px;
}

.res-proj {
  font-size: 0.75rem;
  margin-bottom: 4px;
  color: #334155;
}

/* --- 18. FOOTER --- */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 100px 0;
  background: var(--bg-surface-1);
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 32px;
}

.footer-left {
  max-width: 400px;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.footer-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-copy {
  width: 100%;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

/* --- 19. RESPONSIVE BREAKPOINTS (FULLY RESPONSIVE ENGINE) --- */

/* Desktop & Large Laptops (<= 1200px) */
@media (max-width: 1200px) {
  .container {
    padding: 0 20px;
  }
  .logo-role {
    display: none; /* Streamline header */
  }
  .nav-links {
    gap: 16px;
  }
  .nav-link {
    font-size: 0.8125rem;
  }
  .cs-grid, .case-study-card:nth-child(even) .cs-grid {
    grid-template-columns: 1fr;
  }
  .case-study-card:nth-child(even) .cs-content-col {
    order: 1;
    border-left: none;
  }
  .case-study-card:nth-child(even) .cs-preview-col {
    order: 2;
    border-right: none;
    border-top: 1px solid var(--border-subtle);
  }
  .cs-preview-col {
    border-left: none;
    border-top: 1px solid var(--border-subtle);
    padding: 36px 24px;
  }
  .ds-controls-bar {
    grid-template-columns: 1fr;
  }
  .ds-sandbox-preview {
    grid-template-columns: 1fr;
  }
}

/* Medium Tablets & Landscape (<= 992px) */
@media (max-width: 992px) {
  .nav-menu {
    display: none; /* Nav links accessible via sticky bottom dock & Cmd+K */
  }
  .lab-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .skills-quad-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .hero-metrics-bar {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    padding: 20px;
  }
  .metric-divider {
    display: none;
  }
  .metric-cell {
    padding: 10px;
    text-align: center;
  }
  .modal-deck-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .modal-deck-sidebar {
    position: static;
    border-bottom: 1px solid var(--border-subtle);
    padding-bottom: 20px;
  }
  .modal-case-deck {
    width: 96%;
    max-height: 92vh;
  }
  .modal-deck-body {
    padding: 20px 24px;
  }
}

/* Standard Tablets & Phablets (<= 768px) */
@media (max-width: 768px) {
  .section {
    padding: 70px 0;
  }
  .section-header {
    margin-bottom: 40px;
  }
  .section-title {
    font-size: clamp(1.75rem, 5vw, 2.35rem);
  }
  .hero-section {
    padding: 50px 0 40px 0;
  }
  .hero-headline {
    font-size: clamp(2rem, 5.5vw, 2.75rem);
    line-height: 1.15;
  }
  .hero-subtext {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 24px;
  }
  .hero-lens-banner {
    margin-bottom: 24px;
  }
  .lens-banner-inner {
    flex-direction: column;
    text-align: center;
    gap: 8px;
    padding: 8px 16px;
  }
  .annotation-message {
    text-align: center;
    font-size: 0.75rem;
  }
  .cs-content-col {
    padding: 28px 20px;
  }
  .cs-title {
    font-size: 1.5rem;
  }
  .cs-preview-col {
    padding: 24px 16px;
  }
  .mockup-floating-badge {
    position: relative;
    top: auto !important;
    left: auto !important;
    right: auto !important;
    bottom: auto !important;
    margin-bottom: 14px;
    display: inline-flex;
  }
  .device-mockup-frame {
    max-width: 100%;
    overflow: hidden;
  }
  .calculator-box {
    padding: 18px 14px;
  }
  .pos-config-grid {
    grid-template-columns: 1fr;
  }
  .recruiter-box {
    padding: 40px 24px;
  }
  .recruiter-title {
    font-size: 1.85rem;
  }
  .recruiter-desc {
    font-size: 1rem;
  }
  .recruiter-meta-strip {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding-top: 24px;
  }
  .dock-btn-label {
    display: none;
  }
  .quick-dock {
    bottom: 14px;
    width: calc(100vw - 20px);
    max-width: 440px;
  }
  .dock-inner {
    justify-content: space-around;
    padding: 6px 8px;
    gap: 4px;
    width: 100%;
  }
  .dock-btn {
    padding: 8px 10px;
    min-width: 40px;
    min-height: 40px;
    justify-content: center;
  }
}

/* Mobile Phones (<= 640px) */
@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }
  .section {
    padding: 60px 0;
  }
  .section-header {
    margin-bottom: 32px;
  }

  /* Header Optimization */
  .site-header {
    height: 60px;
  }
  .nav-container {
    padding: 0 12px;
  }
  .site-logo {
    gap: 8px;
  }
  .logo-avatar {
    width: 32px;
    height: 32px;
    font-size: 0.8125rem;
  }
  .logo-name {
    font-size: 0.9375rem;
  }
  /* Lens switcher is already in bottom floating dock; hide in top bar on mobile for clean breathing room */
  .lens-switcher-header {
    display: none;
  }
  .nav-actions-cluster {
    gap: 6px;
  }
  .nav-actions-cluster .cmd-trigger-btn {
    display: none; /* Handled by bottom quick dock */
  }
  .nav-resume-btn {
    padding: 6px 10px;
    font-size: 0.75rem;
  }
  .nav-hire-btn {
    padding: 6px 10px;
    font-size: 0.75rem;
  }

  /* Hero Section */
  .hero-section {
    padding: 40px 0 32px 0;
  }
  .hero-headline {
    font-size: clamp(1.85rem, 6.5vw, 2.35rem);
    line-height: 1.2;
    margin-bottom: 16px;
  }
  .hero-subtext {
    font-size: 0.9375rem;
    line-height: 1.55;
    margin-bottom: 20px;
  }

  /* Ergonomic Hero Actions Grid (Balanced 3-row layout) */
  .hero-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
    max-width: 420px;
    margin: 0 auto 28px auto;
    gap: 10px;
  }
  .hero-actions > .btn {
    justify-content: center;
    padding: 12px 14px;
    font-size: 0.875rem;
    min-height: 44px;
  }
  /* See My Work spans both columns */
  .hero-actions > .btn:first-child {
    grid-column: span 2;
    padding: 14px 20px;
    font-size: 0.9375rem;
  }
  /* Email spans both columns */
  .hero-actions > .btn:last-child {
    grid-column: span 2;
    padding: 10px 14px;
    font-size: 0.8125rem;
  }

  /* Crisp 2x2 Hero Metrics Dashboard */
  .hero-metrics-bar {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 10px !important;
    padding: 14px 10px !important;
    width: 100% !important;
    max-width: 420px !important;
    margin: 0 auto 32px auto !important;
  }
  .metric-cell {
    padding: 8px 4px !important;
    text-align: center !important;
    align-items: center !important;
  }
  .metric-value {
    font-size: 1.35rem !important;
  }
  .metric-label {
    font-size: 0.75rem !important;
    margin-top: 2px !important;
  }
  .metric-desc {
    display: none !important; /* Hide verbose subtitle on mobile to keep cards compact */
  }

  /* Case Studies Mobile Layout */
  .case-study-card {
    margin-bottom: 36px;
    border-radius: var(--radius-lg);
  }
  .cs-content-col {
    padding: 24px 16px;
  }
  .cs-title {
    font-size: 1.375rem;
    line-height: 1.25;
    margin-bottom: 12px;
  }
  .cs-summary {
    font-size: 0.9375rem;
    line-height: 1.55;
    margin-bottom: 18px;
  }
  .lens-panel-block {
    padding: 14px;
    margin-bottom: 18px;
  }
  .cs-tags {
    margin-bottom: 20px;
    gap: 6px;
  }

  /* Case Study Actions Grid (Primary on top, secondary side-by-side) */
  .cs-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
    gap: 10px;
  }
  .cs-actions > *:first-child {
    grid-column: span 2;
    padding: 12px 16px;
    font-size: 0.875rem;
    justify-content: center;
    min-height: 44px;
  }
  .cs-actions > *:nth-child(2),
  .cs-actions > *:nth-child(3) {
    padding: 10px 12px;
    font-size: 0.8125rem;
    justify-content: center;
    min-height: 40px;
  }

  /* Edge-to-Edge Mobile Mockup Preview */
  .cs-preview-col {
    padding: 16px 10px !important;
    background: #0d1017;
  }
  .device-mockup-frame {
    width: 100% !important;
    max-width: 100% !important;
    border-radius: var(--radius-md);
  }
  .mockup-body {
    padding: 16px 12px !important;
    min-height: auto !important;
  }
  .mockup-floating-badge {
    position: relative;
    top: auto !important;
    left: auto !important;
    right: auto !important;
    bottom: auto !important;
    margin-bottom: 10px;
    display: inline-flex;
    padding: 6px 12px;
  }

  /* Interactive Lab Widgets */
  .lab-card {
    padding: 18px 12px;
  }
  .calculator-box {
    padding: 14px 10px;
  }
  .calc-label-row {
    margin-bottom: 8px;
  }
  .tenure-pills-group {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
  }
  .tenure-btn {
    padding: 6px 2px;
    font-size: 0.75rem;
  }
  .pos-actions-row {
    display: flex;
    flex-direction: column;
    width: 100%;
    gap: 8px;
  }
  .pos-actions-row .btn {
    width: 100%;
    justify-content: center;
  }

  /* Recruiter Fast-Track Hub (Balanced 2-column conversion grid) */
  .recruiter-box {
    padding: 32px 16px;
    border-radius: var(--radius-lg);
  }
  .recruiter-title {
    font-size: 1.625rem;
    line-height: 1.25;
  }
  .recruiter-desc {
    font-size: 0.9375rem;
    margin-bottom: 24px;
  }
  .recruiter-quick-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
    max-width: 440px;
    margin: 0 auto 24px auto;
    gap: 10px;
  }
  .recruiter-quick-actions .btn {
    padding: 12px 10px;
    font-size: 0.8125rem;
    justify-content: center;
    min-height: 44px;
  }
  /* Email button takes full width */
  .recruiter-quick-actions .copy-email-btn {
    grid-column: span 2;
  }
  .recruiter-meta-strip {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding-top: 18px;
  }

  /* Timeline */
  .timeline-container {
    padding-left: 20px;
  }
  .timeline-container::before {
    left: 4px;
  }
  .timeline-marker {
    left: -20px;
    width: 12px;
    height: 12px;
    top: 6px;
  }
  .timeline-card {
    padding: 18px 14px;
  }
  .timeline-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  /* Modals */
  .modal-dialog {
    width: calc(100vw - 16px);
    max-height: calc(100vh - 20px);
    border-radius: var(--radius-lg);
  }
  .modal-header {
    padding: 14px 16px;
  }
  .modal-body {
    padding: 14px;
  }
  .modal-deck-body {
    padding: 14px 12px;
  }
  .modal-header-actions {
    gap: 6px;
  }
  .modal-header-actions .btn {
    padding: 6px 8px;
    font-size: 0.75rem;
  }
  .modal-title {
    font-size: 1.05rem;
  }
  .deck-stat-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
  .deck-stat-card {
    padding: 10px 8px;
  }
  .deck-stat-val {
    font-size: 1.125rem;
  }
  .deck-card-block {
    padding: 14px 12px;
  }
  .printable-resume {
    padding: 14px 10px;
  }
  .res-header h2 {
    font-size: 1.5rem;
  }
  .res-subtitle {
    font-size: 0.6875rem;
  }
  .res-contact-bar {
    flex-direction: column;
    gap: 4px;
    align-items: flex-start;
  }
}

/* Small Smart Phones (<= 420px) */
@media (max-width: 420px) {
  .hero-headline {
    font-size: 1.75rem;
  }
  .recruiter-box {
    padding: 24px 12px;
  }
  .recruiter-title {
    font-size: 1.4rem;
  }
  .quick-dock {
    bottom: 10px;
    width: calc(100vw - 12px);
  }
  .dock-btn {
    padding: 7px;
    min-width: 34px;
    min-height: 34px;
    font-size: 0.8125rem;
  }
}

/* Print Stylesheet */
@media print {
  body * {
    visibility: hidden;
  }
  .printable-resume, .printable-resume * {
    visibility: visible;
  }
  .printable-resume {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
  }
}