/* ==========================================================================
   DESIGN VARIABLES & SYSTEM (WCAG 2.1 AA COMPLIANT)
   ========================================================================== */

:root {
  /* Fonts */
  --font-heading: 'Outfit', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'Geist Mono', 'Fira Code', monospace;

  /* Theme: Dark Mode (Default) */
  --bg-color: #05070f;
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  /* Glassmorphism settings */
  --glass-bg: rgba(9, 13, 24, 0.75);
  --glass-border: rgba(255, 255, 255, 0.07);
  --glass-border-hover: rgba(255, 255, 255, 0.15);
  --glass-glow: rgba(99, 102, 241, 0.08);
  --card-bg-solid: #0d111d;

  /* Accent compliance HSL values (> 4.5:1 against dark bg) */
  --primary-accent: #60a5fa; /* Blue */
  --primary-accent-rgb: 96, 165, 250;
  --purple-accent: #a78bfa; /* Purple */
  --green-accent: #4ade80; /* Success green */
  --amber-accent: #fbbf24; /* Warning/SLA amber */
  --red-accent: #f87171; /* Danger red */

  --gradient-text: linear-gradient(135deg, #f3f4f6 30%, #9ca3af 100%);
  --gradient-accent: linear-gradient(135deg, #60a5fa 0%, #a78bfa 50%, #f472b6 100%);
  --focus-ring-color: #a78bfa;
  --shadow-lg: 0 10px 40px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);

  /* Border radius tokens */
  --r2: 2px;
  --r4: 4px;
  --r8: 8px;
  --r12: 12px;
  --r16: 16px;
  --r24: 24px;
  --r50: 50%;

  --header-height: 72px;
  --max-width: 1120px;
  
  --scrollbar-track: #05070f;
  --scrollbar-thumb: #1e293b;
  --scrollbar-thumb-hover: #3b82f6;

  --ease-spring: cubic-bezier(.34, 1.56, .64, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);

  /* Ambient blobs illumination variables */
  --blob-opacity-base: 0.11;
  --blob-opacity-high: 0.20;
  --blob-opacity-low: 0.06;
  --blob-blur-base: blur(140px);
  --blob-blur-high: blur(110px);
  --blob-blur-low: blur(160px);
}

/* Light Theme Variables overrides */
body.light-theme {
  --bg-color: #f8fafc;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  
  --glass-bg: rgba(255, 255, 255, 0.8);
  --glass-border: rgba(15, 23, 42, 0.07);
  --glass-border-hover: rgba(15, 23, 42, 0.15);
  --glass-glow: rgba(79, 70, 229, 0.04);
  --card-bg-solid: #ffffff;

  --primary-accent: #1d4ed8; /* Dark Blue */
  --primary-accent-rgb: 29, 78, 216;
  --purple-accent: #6d28d9; /* Deep Purple */
  --green-accent: #15803d; /* Forest Green */
  --amber-accent: #b45309; /* Deep Amber */
  --red-accent: #b91c1c;

  --gradient-text: linear-gradient(135deg, #0f172a 20%, #475569 100%);
  --gradient-accent: linear-gradient(135deg, #1d4ed8 0%, #6d28d9 50%, #db2777 100%);
  --focus-ring-color: #6d28d9;
  --shadow-lg: 0 10px 40px -15px rgba(15, 23, 42, 0.08);
  --shadow-glow: 0 0 35px rgba(29, 78, 216, 0.08);
  
  --scrollbar-track: #f1f5f9;
  --scrollbar-thumb: #cbd5e1;
  --scrollbar-thumb-hover: #1d4ed8;

  /* Light theme overrides for illumination */
  --blob-opacity-base: 0.04;
  --blob-opacity-high: 0.07;
  --blob-opacity-low: 0.015;
  --blob-blur-base: blur(100px);
  --blob-blur-high: blur(75px);
  --blob-blur-low: blur(125px);
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  transition: background-color 0.4s var(--ease-out), color 0.4s var(--ease-out);
}

/* Accessibility Focus Outline System (WCAG 2.1 AA) */
a:focus,
button:focus,
[tabindex]:focus {
  outline: none;
}

a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--focus-ring-color);
  outline-offset: 4px;
}

/* Skip to main content links */
.skip-to-content {
  position: absolute;
  top: -100px;
  left: 24px;
  background: var(--primary-accent);
  color: #ffffff;
  padding: 10px 20px;
  border-radius: var(--r8);
  z-index: 9999;
  font-weight: 600;
  text-decoration: none;
  transition: top 0.2s var(--ease-out);
}

.skip-to-content:focus-visible {
  top: 24px;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: var(--r8);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover);
}

/* Layout Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 max(1.5rem, 4vw);
}

/* Sections */
section {
  position: relative;
  padding: 8rem 0;
}

/* Typography styles */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

p {
  color: var(--text-secondary);
}

/* Helper Utilities */
.gradient-text-color {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-accent-color {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ==========================================================================
   BACKGROUND GRADIENT BLOBS
   ========================================================================== */

.gradient-bg {
  position: fixed;
  inset: 0;
  z-index: -10;
  overflow: hidden;
  pointer-events: none;
}

.gradient-blob {
  position: absolute;
  border-radius: var(--r50);
  filter: var(--blob-blur-base);
  mix-blend-mode: screen;
  animation: floatBlobs 24s infinite alternate ease-in-out;
  opacity: var(--blob-opacity-base);
  transition: opacity 2s, filter 2s;
}

.blob-blue {
  width: min(500px, 80vw);
  height: min(500px, 80vw);
  background-color: #3b82f6;
  top: -10%;
  left: -5%;
  animation-duration: 20s;
}

.blob-purple {
  width: min(600px, 90vw);
  height: min(600px, 90vw);
  background-color: #8b5cf6;
  bottom: -15%;
  right: -10%;
  animation-duration: 28s;
  animation-delay: -5s;
}

.blob-pink {
  width: min(450px, 70vw);
  height: min(450px, 70vw);
  background-color: #ec4899;
  top: 40%;
  left: 30%;
  animation-duration: 24s;
  animation-delay: -10s;
}

body.light-theme .gradient-blob {
  mix-blend-mode: multiply;
}

@keyframes floatBlobs {
  0% {
    transform: translate(0, 0) scale(1) rotate(0deg);
    opacity: var(--blob-opacity-base);
    filter: var(--blob-blur-base);
  }
  33% {
    transform: translate(40px, -60px) scale(1.15) rotate(120deg);
    opacity: var(--blob-opacity-high);
    filter: var(--blob-blur-high);
  }
  66% {
    transform: translate(-30px, 30px) scale(0.85) rotate(240deg);
    opacity: var(--blob-opacity-low);
    filter: var(--blob-blur-low);
  }
  100% {
    transform: translate(0, 0) scale(1) rotate(360deg);
    opacity: var(--blob-opacity-base);
    filter: var(--blob-blur-base);
  }
}

@keyframes slideDownMenu {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   GLASSMORPHISM SYSTEM
   ========================================================================== */

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--r16);
  box-shadow: var(--shadow-lg);
  transition: border-color 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}

.glass-card:hover {
  border-color: var(--glass-border-hover);
}

.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
}



/* ==========================================================================
   NAVBAR & HEADER
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 900;
  border-bottom: 1px solid var(--glass-border);
  transition: box-shadow 0.3s var(--ease-out);
}

.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  letter-spacing: -0.02em;
}

.nav-logo-mark {
  width: 28px;
  height: 28px;
  background: var(--text-primary);
  border-radius: var(--r6);
  display: grid;
  place-items: center;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--bg-color);
  transition: background-color 0.2s, color 0.2s;
}

.nav-logo:hover .nav-logo-mark {
  background-color: var(--primary-accent);
  color: #ffffff;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
}

.nav-link {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: var(--r8);
  transition: background-color 0.2s, color 0.2s;
}

.nav-link:hover {
  background-color: var(--glass-border);
  color: var(--text-primary);
}

.nav-link.active {
  color: var(--text-primary);
  background-color: var(--glass-border);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.theme-toggle {
  background: none;
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  width: 36px;
  height: 36px;
  border-radius: var(--r8);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.theme-toggle:hover {
  background-color: var(--glass-border);
  border-color: var(--glass-border-hover);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

.theme-toggle .icon-sun {
  display: none;
}

body.light-theme .theme-toggle .icon-moon {
  display: none;
}

body.light-theme .theme-toggle .icon-sun {
  display: block;
}

.mobile-menu-toggle {
  background: none;
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  width: 36px;
  height: 36px;
  border-radius: var(--r8);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.mobile-menu-toggle:hover {
  background-color: var(--glass-border);
  border-color: var(--glass-border-hover);
}

.mobile-menu-toggle svg {
  width: 18px;
  height: 18px;
}

.mobile-menu-toggle .line-top,
.mobile-menu-toggle .line-mid,
.mobile-menu-toggle .line-bot {
  transition: transform 0.3s var(--ease-spring), opacity 0.3s;
  transform-origin: center;
}

.mobile-menu-toggle.active .line-mid {
  opacity: 0;
}

.mobile-menu-toggle.active .line-top {
  transform: translateY(6px) rotate(45deg);
}

.mobile-menu-toggle.active .line-bot {
  transform: translateY(-6px) rotate(-45deg);
}


.cta-button {
  font-size: 0.82rem;
  font-weight: 600;
  background: var(--text-primary);
  color: var(--bg-color);
  padding: 0.5rem 1rem;
  border-radius: var(--r8);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.2s var(--ease-out);
  border: 1px solid transparent;
}

.cta-button:hover {
  background: var(--primary-accent);
  color: #ffffff;
  transform: translateY(-1px);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.6rem;
  border-radius: var(--r8);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.25s var(--ease-out);
}

.btn-primary {
  background-color: var(--text-primary);
  color: var(--bg-color);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.btn-primary:hover {
  background-color: var(--primary-accent);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(var(--primary-accent-rgb), 0.25);
}

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

.btn-secondary:hover {
  background-color: var(--glass-border);
  border-color: var(--glass-border-hover);
  transform: translateY(-1px);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */

#hero {
  min-height: 100vh;
  padding-top: calc(var(--header-height) + 4rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  max-width: 680px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-secondary);
  border: 1px solid var(--glass-border);
  padding: 0.35rem 0.85rem;
  border-radius: var(--r24);
  background: var(--glass-bg);
  margin-bottom: 2rem;
}

.hero-eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: var(--r50);
  background: var(--green-accent);
  box-shadow: 0 0 0 2px rgba(74, 222, 128, 0.25);
  animation: pulseDot 2.5s infinite;
}

@keyframes pulseDot {
  0%, 100% {
    box-shadow: 0 0 0 2px rgba(74, 222, 128, 0.2);
  }
  50% {
    box-shadow: 0 0 0 5px rgba(74, 222, 128, 0.05);
  }
}

.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4.4rem);
  letter-spacing: -0.04em;
  margin-bottom: 1.5rem;
}

.hero-title span {
  display: block;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--text-secondary);
  font-weight: 300;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

.hero-kpis {
  display: flex;
  border: 1px solid var(--glass-border);
  border-radius: var(--r12);
  background: var(--glass-bg);
  width: fit-content;
  overflow: hidden;
}

.kpi-card {
  padding: 1rem 1.75rem;
  border-right: 1px solid var(--glass-border);
}

.kpi-card:last-child {
  border-right: none;
}

.kpi-value {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}

.kpi-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  margin-top: 0.25rem;
}

.hero-image-wrap {
  display: flex;
  justify-content: center;
}

.hero-image-card {
  position: relative;
  width: min(320px, 100%);
  aspect-ratio: 0.85;
  border-radius: var(--r24);
  overflow: hidden;
  transition: transform 0.1s ease;
}

.hero-image-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.hero-image-card:hover img {
  transform: scale(1.04);
}

/* ==========================================================================
   SECTION HEADER
   ========================================================================== */

.section-header {
  margin-bottom: 4rem;
  max-width: 600px;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* ==========================================================================
   ABOUT SECTION
   ========================================================================== */

#about {
  border-top: 1px solid var(--glass-border);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 5rem;
  align-items: start;
}

.about-text p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 1.25rem;
}

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

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 2rem;
}

.skill-chip {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-secondary);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 0.35rem 0.85rem;
  border-radius: var(--r24);
  transition: all 0.2s var(--ease-out);
  cursor: default;
}

.skill-chip:hover {
  border-color: var(--primary-accent);
  color: var(--primary-accent);
  transform: translateY(-1px);
}

.about-stats {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--glass-border);
  border-radius: var(--r16);
  overflow: hidden;
  border: 1px solid var(--glass-border);
}

.about-stat-row {
  background: var(--glass-bg);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background-color 0.2s;
}

.about-stat-row:hover {
  background-color: var(--glass-border);
}

.stat-label-item {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.stat-value-item {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* ==========================================================================
   WORK SECTION & CASE STUDY TABS
   ========================================================================== */

#work {
  border-top: 1px solid var(--glass-border);
}

.work-tabs-nav {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 3.5rem;
  padding: 0.3rem;
  border-radius: var(--r16);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  width: fit-content;
}

.work-tab-btn {
  padding: 0.7rem 1.5rem;
  border-radius: var(--r12);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  transition: all 0.25s var(--ease-out);
  letter-spacing: -0.01em;
}

.work-tab-btn:hover {
  color: var(--text-primary);
  background-color: var(--glass-border);
}

.work-tab-btn.active {
  color: var(--bg-color);
  background-color: var(--text-primary);
}

/* Panel transitions */
.cs-panel {
  display: none;
}

.cs-panel.active {
  display: block;
  animation: panelReveal 0.4s var(--ease-out) forwards;
}

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

/* ==========================================================================
   CASE STUDY SHELL (HIP & ARCH & VAM)
   ========================================================================== */

.case-shell {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--r24);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.case-header-block {
  display: grid;
  grid-template-columns: 1fr 340px;
  border-bottom: 1px solid var(--glass-border);
}

.case-intro-text {
  padding: 3rem;
  border-right: 1px solid var(--glass-border);
}

.case-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--primary-accent);
  background: rgba(var(--primary-accent-rgb), 0.08);
  border: 1px solid rgba(var(--primary-accent-rgb), 0.25);
  padding: 0.35rem 0.85rem;
  border-radius: var(--r24);
  margin-bottom: 1.5rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.case-title {
  font-size: clamp(1.8rem, 3.2vw, 2.2rem);
  line-height: 1.25;
  margin-bottom: 1rem;
}

.case-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 580px;
}

.case-stats-side {
  padding: 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background-color: var(--glass-border);
}

.case-metric-box {
  background: var(--card-bg-solid);
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  transition: background-color 0.2s;
}

.case-metric-box:hover {
  background-color: var(--glass-border);
}

.metric-num {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.metric-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  margin-top: 0.5rem;
  line-height: 1.3;
}

.case-vertical-stats {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.75rem;
  padding: 2rem;
  background: var(--glass-bg);
}

.case-v-stat {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  background: var(--card-bg-solid);
  border: 1px solid var(--glass-border);
  border-radius: var(--r12);
  transition: all 0.2s var(--ease-out);
}

.case-v-stat:hover {
  border-color: var(--glass-border-hover);
  transform: translateX(4px);
}

.v-stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.v-stat-val {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Sub tabs navigation inside case studies */
.case-subnav {
  display: flex;
  gap: 0.25rem;
  border-bottom: 1px solid var(--glass-border);
  overflow-x: auto;
  scrollbar-width: none;
}

.case-subnav::-webkit-scrollbar {
  display: none;
}

.subtab-btn {
  padding: 1rem 1.5rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.15s, border-color 0.15s;
  letter-spacing: -0.01em;
  margin-bottom: -1px;
}

.subtab-btn:hover {
  color: var(--text-primary);
}

.subtab-btn.active {
  color: var(--text-primary);
  font-weight: 600;
  border-bottom-color: var(--text-primary);
}

.case-body {
  padding: 3rem;
}

.case-pane {
  display: none;
}

.case-pane.active {
  display: block;
  animation: paneReveal 0.3s var(--ease-out) forwards;
}

@keyframes paneReveal {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   CARDS & GRIDS (CASE STUDY SUB-PANELS)
   ========================================================================== */

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.info-block-card {
  background: var(--card-bg-solid);
  border: 1px solid var(--glass-border);
  border-radius: var(--r16);
  padding: 1.5rem;
  transition: all 0.25s var(--ease-out);
}

.info-block-card:hover {
  border-color: var(--glass-border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.info-card-badge {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.info-card-header {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.info-card-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.info-block-card.featured {
  border-color: rgba(var(--primary-accent-rgb), 0.35);
  background: rgba(var(--primary-accent-rgb), 0.03);
}

/* Custom Highlight Box / Callout */
.callout-box {
  background: var(--card-bg-solid);
  border: 1px solid var(--glass-border);
  border-radius: var(--r16);
  padding: 1.25rem 1.75rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 2.5rem;
}

.callout-icon {
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 0.15rem;
  color: var(--primary-accent);
}

.callout-body {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

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

.callout-box.accent-callout {
  background: rgba(var(--primary-accent-rgb), 0.04);
  border-color: rgba(var(--primary-accent-rgb), 0.2);
}

.callout-box.accent-callout .callout-body {
  color: var(--text-primary);
}

/* ==========================================================================
   PROBLEM-RESPONSE INSIGHT MAPS
   ========================================================================== */

.insight-map {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.insight-row-item {
  display: grid;
  grid-template-columns: 1fr 40px 1fr;
  gap: 0.75rem;
  align-items: center;
}

.insight-source, .insight-solution {
  border: 1px solid var(--glass-border);
  border-radius: var(--r12);
  padding: 1.25rem 1.5rem;
  background: var(--card-bg-solid);
  transition: all 0.25s var(--ease-out);
}

.insight-row-item:hover .insight-source {
  border-color: var(--glass-border-hover);
}

.insight-row-item:hover .insight-solution {
  border-color: var(--primary-accent);
  background: rgba(var(--primary-accent-rgb), 0.03);
}

.insight-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.insight-solution .insight-label {
  color: var(--primary-accent);
}

.insight-heading {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
}

.insight-description {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.insight-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ==========================================================================
   PERSONAS CARDS
   ========================================================================== */

.persona-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.persona-glass-card {
  border: 1px solid var(--glass-border);
  border-radius: var(--r16);
  padding: 1.5rem;
  background: var(--glass-bg);
  transition: all 0.25s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.persona-glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease-out);
}

.persona-glass-card:hover::before {
  transform: scaleX(1);
}

.persona-glass-card:hover {
  border-color: var(--glass-border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.persona-role {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}

.persona-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.30rem;
}

.persona-meta {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  line-height: 1.4;
}

.persona-quote {
  font-size: 0.8rem;
  color: var(--text-primary);
  line-height: 1.6;
  padding-left: 1rem;
  border-left: 2px solid var(--glass-border-hover);
  font-style: italic;
}

/* ==========================================================================
   INFORMATION ARCHITECTURE FLOWS
   ========================================================================== */

.ia-flow-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.5rem;
  background: var(--card-bg-solid);
  border-radius: var(--r16);
  border: 1px solid var(--glass-border);
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.ia-flow-node {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--r8);
  padding: 0.45rem 1rem;
  transition: all 0.25s var(--ease-out);
  cursor: default;
  white-space: nowrap;
}

.ia-flow-node:hover {
  border-color: var(--text-primary);
  color: var(--text-primary);
}

.ia-flow-node.highlight-node {
  border-color: var(--primary-accent);
  color: var(--primary-accent);
  background: rgba(var(--primary-accent-rgb), 0.03);
}

.ia-flow-arrow {
  color: var(--text-muted);
  font-size: 0.8rem;
  flex-shrink: 0;
}

/* ==========================================================================
   COMPLIANCE COMPARISON STACK
   ========================================================================== */

.compliance-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.comp-panel {
  border: 1px solid var(--glass-border);
  border-radius: var(--r16);
  padding: 1.75rem;
  background: var(--glass-bg);
}

.comp-panel-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--glass-border);
}

.comp-list-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--glass-border);
  transition: padding-left 0.2s var(--ease-out);
}

.comp-list-item:last-child {
  border-bottom: none;
}

.comp-list-item:hover {
  padding-left: 0.5rem;
}

.comp-dot-bullet {
  width: 6px;
  height: 6px;
  border-radius: var(--r50);
  background-color: var(--text-muted);
  flex-shrink: 0;
  margin-top: 0.5rem;
}

.comp-list-item:hover .comp-dot-bullet {
  background-color: var(--primary-accent);
}

.comp-item-text {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.comp-item-text strong {
  color: var(--text-primary);
}

/* ==========================================================================
   RESEARCH TIMELINES
   ========================================================================== */

.research-timeline-list {
  display: flex;
  flex-direction: column;
  margin-bottom: 2.5rem;
}

.timeline-step-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 2rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--glass-border);
  transition: background-color 0.25s, padding 0.25s;
}

.timeline-step-row:last-child {
  border-bottom: none;
}

.timeline-step-row:hover {
  background: var(--card-bg-solid);
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  border-radius: var(--r12);
  margin-left: -1.5rem;
  margin-right: -1.5rem;
}

.timeline-step-phase {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  padding-top: 0.15rem;
}

.timeline-step-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.timeline-step-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.timeline-step-alert {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--amber-accent);
  background: rgba(251, 191, 36, 0.08);
  border: 1px solid rgba(251, 191, 36, 0.25);
  padding: 0.2rem 0.6rem;
  border-radius: var(--r24);
  margin-top: 0.6rem;
}

/* ==========================================================================
   OUTCOME PROGRESS BARS
   ========================================================================== */

.outcomes-grid-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.outcome-progress-card {
  background: var(--card-bg-solid);
  border: 1px solid var(--glass-border);
  border-radius: var(--r16);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transition: all 0.25s var(--ease-out);
}

.outcome-progress-card:hover {
  border-color: var(--glass-border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.progress-track {
  height: 4px;
  background: var(--glass-border);
  border-radius: var(--r2);
  overflow: hidden;
}

.progress-fill-bar {
  height: 100%;
  background: var(--text-primary);
  border-radius: var(--r2);
  width: 0;
  transition: width 1.5s cubic-bezier(.25, 1, .5, 1);
}

.outcome-numeric-title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
}

.outcome-description-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  line-height: 1.4;
}

/* ==========================================================================
   GOVERNANCE EXPANDABLE ACCORDIONS
   ========================================================================== */

.accordion-stack {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 2.5rem;
}

.accordion-item {
  border: 1px solid var(--glass-border);
  border-radius: var(--r16);
  overflow: hidden;
  background: var(--glass-bg);
  transition: border-color 0.25s;
}

.accordion-item.active {
  border-color: var(--glass-border-hover);
  box-shadow: var(--shadow-lg);
}

.accordion-header-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  background: none;
  border: none;
  text-align: left;
  transition: background-color 0.15s;
}

.accordion-header-btn:hover {
  background-color: var(--glass-border);
}

.accordion-header-title-wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.accordion-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  width: 24px;
}

.accordion-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.accordion-chevron-icon {
  width: 20px;
  height: 20px;
  border-radius: var(--r50);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  color: var(--text-secondary);
  transition: transform 0.25s var(--ease-spring), border-color 0.15s;
  flex-shrink: 0;
}

.accordion-item.active .accordion-chevron-icon {
  transform: rotate(180deg);
  border-color: var(--text-primary);
  color: var(--text-primary);
}

.accordion-content-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s var(--ease-out);
}

.accordion-content-body {
  padding: 0.75rem 1.5rem 1.5rem 3.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
  border-top: 1px solid var(--glass-border);
}

.accordion-content-body strong {
  color: var(--text-primary);
}

/* ==========================================================================
   COMPONENT LAYERS SYSTEM & STACKS
   ========================================================================== */

.layer-system-stack {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 2.5rem;
}

.system-layer-row {
  display: flex;
  border: 1px solid var(--glass-border);
  border-radius: var(--r12);
  overflow: hidden;
  transition: all 0.25s var(--ease-out);
  cursor: default;
}

.system-layer-row:hover {
  border-color: var(--glass-border-hover);
  transform: translateX(4px);
  box-shadow: var(--shadow-lg);
}

.system-layer-indicator-bar {
  width: 4px;
  flex-shrink: 0;
}

.system-layer-body-wrap {
  padding: 1.25rem 1.5rem;
  flex-grow: 1;
  background: var(--card-bg-solid);
}

.system-layer-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.system-layer-desc {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Onboarding Matrix / Grid Tables */
.table-scroll-container {
  overflow-x: auto;
  margin-bottom: 2.5rem;
  border-radius: var(--r12);
  border: 1px solid var(--glass-border);
}

.matrix-data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.matrix-data-table th {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 1rem 1.25rem;
  background: var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
}

.matrix-data-table td {
  font-size: 0.82rem;
  color: var(--text-secondary);
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--glass-border);
  background: var(--card-bg-solid);
  vertical-align: top;
  line-height: 1.6;
  transition: background-color 0.15s;
}

.matrix-data-table tr:last-child td {
  border-bottom: none;
}

.matrix-data-table tr:hover td {
  background-color: var(--glass-border);
}

.matrix-data-table td:first-child {
  font-weight: 600;
  color: var(--text-primary);
  background: var(--glass-border);
  width: 130px;
}

.matrix-data-table td strong {
  color: var(--text-primary);
}

/* ==========================================================================
   PROCESS SECTION
   ========================================================================== */

#process {
  border-top: 1px solid var(--glass-border);
}

.process-pipeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--glass-border);
  border-radius: var(--r16);
  overflow: hidden;
  border: 1px solid var(--glass-border);
}

.process-pipeline-step {
  background: var(--glass-bg);
  padding: 2.25rem 1.75rem;
  position: relative;
  transition: background-color 0.25s;
}

.process-pipeline-step:hover {
  background-color: var(--glass-border);
}

.step-active-top-bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--text-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out);
}

.process-pipeline-step:hover .step-active-top-bar {
  transform: scaleX(1);
}

.process-step-num {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  margin-bottom: 1.5rem;
}

.process-step-icon {
  width: 36px;
  height: 36px;
  background: var(--glass-border);
  border-radius: var(--r8);
  display: grid;
  place-items: center;
  font-size: 1rem;
  margin-bottom: 1.25rem;
  border: 1px solid var(--glass-border);
  transition: all 0.25s var(--ease-out);
}

.process-pipeline-step:hover .process-step-icon {
  background: var(--text-primary);
  border-color: var(--text-primary);
  color: var(--bg-color);
}

/* Light mode inverse styling */
body.light-theme .process-pipeline-step:hover .process-step-icon {
  color: #ffffff;
}

.process-step-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.process-step-tasks {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.process-step-tasks li {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.process-step-tasks li::before {
  content: '';
  width: 3px;
  height: 3px;
  border-radius: var(--r50);
  background: var(--text-muted);
  flex-shrink: 0;
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */

#contact {
  border-top: 1px solid var(--glass-border);
}

.contact-layout-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-info-text p {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 1.25rem;
}

.contact-options-stack {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 2rem;
}

.contact-card-link-item {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.25rem 1.5rem;
  background: var(--card-bg-solid);
  border: 1px solid var(--glass-border);
  border-radius: var(--r16);
  text-decoration: none;
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.25s var(--ease-out);
}

.contact-card-link-item:hover {
  border-color: var(--text-primary);
  transform: translateX(6px);
  box-shadow: var(--shadow-lg);
}

.contact-card-icon-frame {
  width: 40px;
  height: 40px;
  border-radius: var(--r10);
  background: var(--glass-border);
  display: grid;
  place-items: center;
  font-size: 1rem;
  border: 1px solid var(--glass-border);
  transition: all 0.25s var(--ease-out);
  flex-shrink: 0;
  color: var(--text-primary);
}

.contact-card-link-item:hover .contact-card-icon-frame {
  background: var(--text-primary);
  border-color: var(--text-primary);
  color: var(--bg-color);
}

/* Light mode icon invert */
body.light-theme .contact-card-link-item:hover .contact-card-icon-frame {
  color: #ffffff;
}

.contact-card-meta-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  margin-bottom: 0.15rem;
}

.contact-card-meta-value {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.contact-card-arrow-indicator {
  margin-left: auto;
  color: var(--text-muted);
  transition: all 0.2s;
  font-size: 0.85rem;
}

.contact-card-link-item:hover .contact-card-arrow-indicator {
  color: var(--text-primary);
  transform: translateX(4px);
}

.clipboard-status-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--text-primary);
  color: var(--bg-color);
  padding: 0.65rem 1.5rem;
  border-radius: var(--r24);
  font-size: 0.82rem;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  z-index: 1000;
  transition: transform 0.35s var(--ease-spring), opacity 0.2s;
  pointer-events: none;
}

.clipboard-status-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* Availability panel badge */
.availability-visual-card {
  background: var(--text-primary);
  color: var(--bg-color);
  border-radius: var(--r24);
  padding: 3rem 2.5rem;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.availability-visual-card::before {
  content: '';
  position: absolute;
  width: 250px;
  height: 250px;
  border-radius: var(--r50);
  background: rgba(255, 255, 255, 0.04);
  top: -125px;
  right: -125px;
  pointer-events: none;
}

body.light-theme .availability-visual-card::before {
  background: rgba(0, 0, 0, 0.02);
}

.availability-card-heading {
  font-size: 1.6rem;
  font-weight: 700;
  color: inherit;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.availability-card-description {
  font-size: 0.9rem;
  color: inherit;
  opacity: 0.75;
  line-height: 1.7;
  margin-bottom: 2rem;
}

.status-badge-capsule {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.9rem 1.25rem;
  background: rgba(0, 0, 0, 0.1);
  border-radius: var(--r12);
  border: 1px solid rgba(0, 0, 0, 0.15);
  color: inherit;
}

body.light-theme .status-badge-capsule {
  background: rgba(255, 255, 255, 0.4);
  border-color: rgba(0, 0, 0, 0.06);
}

.status-live-pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: var(--r50);
  background: #22c55e;
  box-shadow: 0 0 0 3px rgba(34, 197, 148, 0.25);
  animation: pulseDotLive 2.5s infinite;
  flex-shrink: 0;
}

@keyframes pulseDotLive {
  0%, 100% {
    box-shadow: 0 0 0 3px rgba(34, 197, 148, 0.25);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(34, 197, 148, 0.08);
  }
}

.status-badge-text-label {
  font-size: 0.82rem;
  font-family: var(--font-mono);
  color: inherit;
}

.status-badge-text-label strong {
  font-weight: 600;
}

.work-tags-flex {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.work-tag-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: inherit;
  border: 1px solid rgba(0, 0, 0, 0.15);
  background: rgba(0, 0, 0, 0.05);
  padding: 0.3rem 0.75rem;
  border-radius: var(--r24);
  opacity: 0.8;
}

body.light-theme .work-tag-badge {
  border-color: rgba(0, 0, 0, 0.08);
  background: rgba(0, 0, 0, 0.02);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.site-footer {
  border-top: 1px solid var(--glass-border);
  padding: 2rem 0;
  background: var(--glass-bg);
}

.footer-inner-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.footer-copy-text {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* ==========================================================================
   REVEAL SCROLL ANIMATIONS
   ========================================================================== */

.reveal-fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.reveal-fade-up.delay-1 {
  transition-delay: 0.08s;
}

.reveal-fade-up.delay-2 {
  transition-delay: 0.16s;
}

.reveal-fade-up.delay-3 {
  transition-delay: 0.24s;
}

.reveal-fade-up.revealed {
  opacity: 1;
  transform: none;
}

/* ==========================================================================
   MOBILE RESPONSIVENESS MEDIA QUERIES
   ========================================================================== */

@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3.5rem;
    text-align: center;
  }

  .hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 100%;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-kpis {
    justify-content: center;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .case-header-block {
    grid-template-columns: 1fr;
  }

  .case-intro-text {
    border-right: none;
    border-bottom: 1px solid var(--glass-border);
    padding: 2rem;
  }

  .case-stats-side {
    padding: 1.5rem;
    border-top: none;
  }

  .case-vertical-stats {
    padding: 1.5rem;
  }

  .grid-3, .grid-4 {
    grid-template-columns: 1fr 1fr;
  }

  .compliance-grid {
    grid-template-columns: 1fr;
  }

  .contact-layout-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }

  section {
    padding: 5rem 0;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .nav-menu {
    display: none;
    flex-direction: column;
    position: absolute;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: auto;
    background: var(--glass-bg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1.5rem max(1.5rem, 4vw);
    gap: 0.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    z-index: 890;
  }

  .nav-menu.open {
    display: flex;
    animation: slideDownMenu 0.3s var(--ease-out) forwards;
  }

  .nav-menu li {
    width: 100%;
  }

  .nav-link {
    display: block;
    width: 100%;
    padding: 0.8rem 1.2rem;
    font-size: 1rem;
    border-radius: var(--r8);
    text-align: left;
  }

  .case-body {
    padding: 1.5rem;
  }

  .grid-3, .grid-4, .grid-2, .persona-grid {
    grid-template-columns: 1fr;
  }

  .insight-row-item {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .insight-connector {
    display: none;
  }

  .timeline-step-row {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .outcomes-grid-container {
    grid-template-columns: 1fr;
  }

  .process-pipeline {
    grid-template-columns: 1fr;
  }

  .process-pipeline-step {
    padding: 1.5rem;
  }

  .footer-inner-wrap {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .nav-logo span {
    display: none;
  }
}