/* ============================================
   ADI SUNDAR — PERSONAL WEBSITE
   Bold & Modern Design System
   ============================================ */

/* --- CSS Variables / Design Tokens --- */
:root {
  --color-primary: #0a0f1e;
  --color-secondary: #141b2d;
  --color-accent: #4f6df5;
  --color-accent-hover: #3b57d9;
  --color-accent-light: rgba(79, 109, 245, 0.1);
  --color-white: #ffffff;
  --color-off-white: #f7f8fc;
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;
  --color-coral: #e8655a;
  --color-success: #10b981;

  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 8rem;

  --max-width: 1200px;
  --max-width-narrow: 800px;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -1px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 25px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.03);
  --shadow-xl: 0 20px 50px -5px rgba(0,0,0,0.12);

  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  color: var(--color-gray-800);
  background: var(--color-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-hover);
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p {
  font-size: 1.125rem;
  color: var(--color-gray-600);
  max-width: 65ch;
}

.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.25rem; }
.text-xl { font-size: 1.5rem; }

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container--narrow {
  max-width: var(--max-width-narrow);
}

.section {
  padding: var(--space-4xl) 0;
}

.section--dark {
  background: var(--color-primary);
  color: var(--color-white);
}

.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--color-white);
}

.section--dark p {
  color: var(--color-gray-300);
}

.section--gray {
  background: var(--color-off-white);
}

/* --- Utility --- */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-body);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(79, 109, 245, 0.4);
}

.btn--outline {
  background: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

.btn--outline:hover {
  background: var(--color-accent);
  color: var(--color-white);
  transform: translateY(-1px);
}

.btn--white {
  background: var(--color-white);
  color: var(--color-primary);
}

.btn--white:hover {
  background: var(--color-gray-100);
  color: var(--color-primary);
  transform: translateY(-1px);
}

.btn--sm {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
}

.btn--lg {
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.25rem 0;
  transition: all var(--transition-base);
}

.nav--scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
  padding: 0.75rem 0;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.nav__logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav--scrolled .nav__logo {
  color: var(--color-primary);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
}

.nav__links a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.nav--scrolled .nav__links a {
  color: var(--color-gray-600);
}

.nav--scrolled .nav__links a.btn--primary,
.nav--scrolled .nav__links a.btn--primary:hover {
  color: var(--color-white);
}

.nav__links a:hover {
  color: var(--color-white);
}

.nav--scrolled .nav__links a:hover {
  color: var(--color-primary);
}

.nav__close {
  display: none;
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  margin: 5px 0;
  transition: all var(--transition-fast);
}

.nav--scrolled .nav__toggle span {
  background: var(--color-primary);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, #1a2340 50%, #0f1629 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 200%;
  background: radial-gradient(ellipse, rgba(79, 109, 245, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  padding: var(--space-4xl) 0;
}

.hero__content {
  position: relative;
  z-index: 1;
}

.hero__label {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: rgba(79, 109, 245, 0.15);
  color: var(--color-accent);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 100px;
  margin-bottom: var(--space-md);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero__title {
  color: var(--color-white);
  margin-bottom: var(--space-md);
  font-size: clamp(2.75rem, 5.5vw, 4.25rem);
  line-height: 1.1;
}

.rotating-words {
  display: inline-block;
  position: relative;
  vertical-align: bottom;
  overflow: hidden;
  /* Width will be set dynamically by JS */
}

.rotating-word {
  display: inline-block;
  position: absolute;
  left: 0;
  top: 0;
  background: linear-gradient(135deg, var(--color-accent), #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0;
  transform: translateY(100%);
  transition: opacity 0.5s ease, transform 0.5s ease;
  white-space: nowrap;
}

.rotating-word.active {
  position: relative;
  opacity: 1;
  transform: translateY(0);
}

.rotating-word.exit-up {
  opacity: 0;
  transform: translateY(-100%);
}

.hero__description {
  font-size: 1.25rem;
  color: var(--color-gray-400);
  margin-bottom: var(--space-xl);
  max-width: 520px;
  line-height: 1.8;
}

.hero__ctas {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
}

.hero__social {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

.hero__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-gray-400);
  transition: all var(--transition-fast);
}

.hero__social a:hover {
  background: var(--color-accent);
  color: var(--color-white);
  transform: translateY(-2px);
}

.hero__social svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* --- Hero Stats Bar --- */
.hero-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.625rem;
  margin-bottom: var(--space-xl);
}

.hero-stat {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.6rem 1.2rem;
  flex: 1 1 0;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 100px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 0 20px rgba(79, 109, 245, 0.15), 0 0 40px rgba(79, 109, 245, 0.05);
  transition: background 0.25s, border-color 0.25s, box-shadow 0.25s;
}

.hero-stat:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.28);
  box-shadow: 0 0 24px rgba(79, 109, 245, 0.25), 0 0 48px rgba(79, 109, 245, 0.08);
}

.hero-stat__icon {
  font-size: 1.1rem;
  line-height: 1;
  flex-shrink: 0;
}

.hero-stat__text {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.hero-stat__value {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.2;
}

.hero-stat__label {
  font-size: 0.7rem;
  color: var(--color-gray-400);
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: 0.01em;
}

.hero-stat--award .hero-stat__value {
  font-size: 0.8rem;
  background: linear-gradient(135deg, #f9d423, #e8655a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__image {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero__image img {
  width: 100%;
  max-width: 480px;
  border-radius: var(--radius-xl);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4);
}

.hero__image .hero__label {
  margin-top: var(--space-sm);
  margin-bottom: 0;
}

/* --- Logo Bar --- */
.logo-bar {
  padding: var(--space-2xl) 0;
  background: var(--color-off-white);
  border-top: 1px solid var(--color-gray-200);
  border-bottom: 1px solid var(--color-gray-200);
}

.logo-bar__label {
  text-align: center;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-gray-400);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
}

.logo-bar__grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xl);
  flex-wrap: wrap;
}

.logo-bar__item {
  height: 32px;
  opacity: 0.5;
  transition: opacity var(--transition-fast);
  filter: grayscale(100%);
}

.logo-bar__item:hover {
  opacity: 1;
  filter: grayscale(0%);
}

/* --- About Section --- */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.about__content h2 {
  margin-bottom: var(--space-md);
}

.about__content p {
  margin-bottom: var(--space-md);
}

.about__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.stat {
  padding: var(--space-lg);
  background: var(--color-off-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition-fast);
}

.stat:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.stat__number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 0.25rem;
  letter-spacing: -0.03em;
}

.stat__label {
  font-size: 0.9375rem;
  color: var(--color-gray-500);
  font-weight: 500;
}

/* --- Case Studies Section --- */
.case-studies__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.case-studies__header p {
  margin: var(--space-sm) auto 0;
}

.case-study-card {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-2xl);
  align-items: center;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition-base);
  margin-bottom: var(--space-2xl);
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.case-study-card:hover {
  box-shadow: var(--shadow-xl);
  border-color: var(--color-gray-300);
  transform: translateY(-4px);
}

.case-study-card--reverse {
  grid-template-columns: 0.9fr 1.1fr;
}

.case-study-card--reverse .case-study-card__image {
  order: 2;
}

.case-study-card--reverse .case-study-card__content {
  order: 1;
}

.case-study-card__image {
  height: 100%;
  min-height: 400px;
  overflow: hidden;
}

.case-study-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-study-card__content {
  padding: var(--space-2xl);
}

.case-study-card__tag {
  display: inline-block;
  padding: 0.375rem 0.875rem;
  background: var(--color-accent-light);
  color: var(--color-accent);
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: 100px;
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.case-study-card__title {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
}

.case-study-card__role {
  font-size: 1.0625rem;
  color: var(--color-gray-500);
  margin-bottom: var(--space-md);
}

.case-study-card__milestone {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  vertical-align: middle;
}

.case-study-card__milestone--acquired {
  background: rgba(34, 197, 94, 0.1);
  color: #16a34a;
  border: 1px solid rgba(34, 197, 94, 0.25);
}

.case-study-card__milestone--series {
  background: rgba(234, 179, 8, 0.1);
  color: #b45309;
  border: 1px solid rgba(234, 179, 8, 0.25);
}

.case-study-card__description {
  font-size: 1rem;
  color: var(--color-gray-600);
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

.case-study-card__metrics {
  display: flex;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.metric {
  text-align: left;
}

.metric__value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.metric__label {
  font-size: 0.8125rem;
  color: var(--color-gray-500);
}

/* --- Timeline Section --- */
.timeline {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-gray-200);
}

.timeline__item {
  position: relative;
  padding-left: 72px;
  padding-bottom: var(--space-2xl);
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__dot {
  position: absolute;
  left: 18px;
  top: 4px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-white);
  border: 3px solid var(--color-accent);
  z-index: 1;
}

.timeline__item--highlight .timeline__dot {
  background: var(--color-accent);
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(79, 109, 245, 0.2);
}

.timeline__item--award .timeline__dot {
  background: #f59e0b;
  border-color: #f59e0b;
  box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.2);
}

.timeline__date {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.timeline__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.125rem;
}

.timeline__company {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.timeline__logo {
  height: 28px;
  width: auto;
  object-fit: contain;
  margin-bottom: 0.5rem;
  border-radius: 4px;
  display: none;
}

.timeline__location {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--color-gray-400);
  margin-bottom: 0.5rem;
}

.timeline__description {
  font-size: 0.9375rem;
  color: var(--color-gray-500);
  line-height: 1.7;
  max-width: 560px;
}

.timeline__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.75rem;
  background: rgba(245, 158, 11, 0.1);
  color: #d97706;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 100px;
  margin-top: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --- Advisory CTA Section --- */
.advisory {
  background: linear-gradient(135deg, var(--color-primary) 0%, #1a2340 100%);
  color: var(--color-white);
}

.advisory__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.advisory__header h2 {
  color: var(--color-white);
}

.advisory__header p {
  color: var(--color-gray-400);
  margin: var(--space-sm) auto 0;
}

.advisory__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.advisory-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-base);
}

.advisory-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(79, 109, 245, 0.4);
  transform: translateY(-4px);
}

.advisory-card--featured {
  border-color: var(--color-accent);
  background: rgba(79, 109, 245, 0.08);
  position: relative;
}

.advisory-card__popular {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.25rem 1rem;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.advisory-card__name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 0.25rem;
}

.advisory-card__price {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 0.25rem;
  letter-spacing: -0.02em;
}

.advisory-card__price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-gray-400);
}

.advisory-card__desc {
  font-size: 0.9375rem;
  color: var(--color-gray-400);
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

.advisory-card__features {
  list-style: none;
  margin-bottom: var(--space-lg);
}

.advisory-card__features li {
  padding: 0.5rem 0;
  font-size: 0.9375rem;
  color: var(--color-gray-300);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.advisory-card__features li::before {
  content: '✓';
  color: var(--color-success);
  font-weight: 700;
}

.advisory-card .btn {
  width: 100%;
  justify-content: center;
}

/* --- Footer --- */
.footer {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--color-gray-200);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer__copy {
  font-size: 0.875rem;
  color: var(--color-gray-500);
}

.footer__social {
  display: flex;
  gap: var(--space-sm);
}

.footer__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-gray-100);
  color: var(--color-gray-500);
  transition: all var(--transition-fast);
}

.footer__social a:hover {
  background: var(--color-accent);
  color: var(--color-white);
}

.footer__social svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* =============================================
   CASE STUDY PAGE STYLES
   ============================================= */
.cs-hero {
  padding: calc(var(--space-4xl) + 80px) 0 var(--space-3xl);
  background: linear-gradient(135deg, var(--color-primary) 0%, #1a2340 100%);
  color: var(--color-white);
}

.cs-hero__back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-gray-400);
  font-size: 0.9375rem;
  font-weight: 500;
  margin-bottom: var(--space-xl);
  transition: color var(--transition-fast);
}

.cs-hero__back:hover {
  color: var(--color-white);
}

.cs-hero__split {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-2xl);
  align-items: center;
}

.cs-hero__text {
  min-width: 0;
}

.cs-hero__meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

.cs-hero__tag {
  padding: 0.375rem 0.875rem;
  background: rgba(79, 109, 245, 0.2);
  color: var(--color-accent);
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.cs-hero__tag--role {
  background: rgba(255, 255, 255, 0.12);
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.cs-hero__tag--acquired {
  background: rgba(34, 197, 94, 0.15);
  color: #4ade80;
  border: 1px solid rgba(34, 197, 94, 0.3);
  text-transform: none;
  letter-spacing: 0.01em;
}

.cs-hero__tag--milestone {
  background: rgba(234, 179, 8, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(234, 179, 8, 0.3);
  text-transform: none;
  letter-spacing: 0.01em;
}

.cs-hero h1 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
  max-width: 700px;
}

.cs-hero__subtitle {
  font-size: 1.25rem;
  color: var(--color-gray-400);
  max-width: 600px;
  line-height: 1.8;
}

.cs-hero__image {
  margin-top: var(--space-2xl);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.3);
}

.cs-hero__image img {
  width: 100%;
}

.cs-hero__image--side {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  overflow: hidden;
}

.cs-hero__image--side img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

/* Case study CTA button group */
.cs-cta-group {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--space-2xl);
}

/* Case study metrics bar */
.cs-metrics {
  padding: var(--space-2xl) 0;
  background: var(--color-off-white);
  border-bottom: 1px solid var(--color-gray-200);
}

.hero-stats--compact {
  margin-top: var(--space-lg);
  margin-bottom: 0;
  max-width: 480px;
}

.hero-stats--compact .hero-stat {
  flex: 0 1 auto;
  padding: 0.5rem 1rem;
}

.hero-stats--compact .hero-stat__icon {
  font-size: 1rem;
  width: 1.2rem;
  text-align: center;
  flex-shrink: 0;
}

.hero-stats--compact .hero-stat__value {
  font-size: 0.85rem;
}

.hero-stats--compact .hero-stat__label {
  font-size: 0.65rem;
}

/* Press / Featured In */
.cs-press {
  text-align: center;
}

.cs-press__label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-gray-400);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-xl);
}

.cs-press__links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.cs-press__link {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.cs-press__link:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.cs-press__logo {
  height: 20px;
  width: auto;
  flex-shrink: 0;
  margin-top: 2px;
}

.cs-press__title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  text-align: left;
  line-height: 1.4;
}

/* Case study body content */
.cs-body {
  padding: var(--space-3xl) 0;
}

.cs-body__content {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
}

.cs-body h2 {
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
}

.cs-body h3 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

.cs-body p {
  margin-bottom: var(--space-md);
}

.cs-body__wide-image {
  max-width: var(--max-width);
  margin: var(--space-2xl) auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.cs-body__wide-image img {
  width: 100%;
}

.cs-body__quote {
  position: relative;
  padding: var(--space-xl);
  background: var(--color-accent-light);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: var(--space-xl) 0;
}

.cs-body__quote p {
  font-size: 1.125rem;
  font-style: italic;
  color: var(--color-gray-700);
  margin-bottom: 0.5rem;
}

.cs-body__quote cite {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  font-style: normal;
  font-weight: 600;
}

.cs-body__features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.cs-feature {
  padding: var(--space-md);
  background: var(--color-off-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-200);
}

.cs-feature__name {
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.cs-feature__desc {
  font-size: 0.9375rem;
  color: var(--color-gray-500);
}

/* Media coverage links */
.cs-media-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin: var(--space-lg) 0;
}

.cs-media-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--color-off-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition-fast);
}

.cs-media-link:hover {
  border-color: var(--color-accent);
  background: var(--color-white);
  transform: translateX(4px);
}

.cs-media-link__source {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.cs-media-link__title {
  font-weight: 600;
  color: var(--color-primary);
}

/* --- Scroll Animations --- */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================
   HERO STAGGERED ENTRANCE ANIMATION
   Cinematic load: elements cascade in with
   different timing, easing, and motion paths
   ============================================= */

/* Initial hidden state for all animated hero elements */
.hero__title,
.hero__description,
.hero__ctas,
.hero .hero-stats,
.hero__social,
.hero__image {
  opacity: 0;
}

/* Title: slides up with a spring-like overshoot */
.hero__title {
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Description: gentle fade up */
.hero__description {
  transform: translateY(25px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

/* CTA buttons: slide up */
.hero__ctas {
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Stat pills: each one pops in individually via JS delay */
.hero .hero-stats {
  transform: translateY(15px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero .hero-stat {
  opacity: 0;
  transform: scale(0.85) translateY(10px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Social links: fade in */
.hero__social {
  transform: translateY(10px);
  transition: opacity 0.5s ease,
              transform 0.5s ease;
}

/* Hero image: scales up from slightly smaller with a soft fade */
.hero__image {
  transform: scale(0.92) translateY(20px);
  transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1),
              transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Revealed states (added by JS) --- */
.hero--loaded .hero__title {
  opacity: 1;
  transform: translateY(0);
}

.hero--loaded .hero__description {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.15s;
}

.hero--loaded .hero__ctas {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.3s;
}

.hero--loaded .hero-stats {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.45s;
}

.hero.hero--loaded .hero-stat.hero-stat--visible {
  opacity: 1;
  transform: scale(1) translateY(0);
}

.hero--loaded .hero__social {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.7s;
}

.hero--loaded .hero__image {
  opacity: 1;
  transform: scale(1) translateY(0);
  transition-delay: 0.2s;
}

/* Respect reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  .hero__title,
  .hero__description,
  .hero__ctas,
  .hero .hero-stats,
  .hero .hero-stat,
  .hero__social,
  .hero__image {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* --- Team Spotlight --- */
.cs-team-spotlight {
  max-width: var(--max-width-narrow);
  margin: var(--space-2xl) auto;
}

.cs-team-spotlight__card {
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-white);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.04);
  border: 1px solid var(--color-gray-200);
}

.cs-team-spotlight__img {
  width: 100%;
  display: block;
}

.cs-team-spotlight__copy {
  padding: var(--space-lg) var(--space-xl);
}

.cs-team-spotlight__headline {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.cs-team-spotlight__text {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--color-gray-600);
  margin: 0;
}

/* --- Product Gallery --- */
.cs-gallery {
  max-width: var(--max-width);
  margin: var(--space-3xl) auto;
}

.cs-gallery__label {
  text-align: center;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.cs-gallery__title {
  text-align: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1.3rem, 2.5vw, 1.75rem);
  color: var(--color-primary);
  margin-bottom: var(--space-xl);
}

.cs-gallery__grid {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  align-items: flex-start;
  padding: var(--space-lg);
  background: var(--color-gray-50);
  border-radius: var(--radius-xl);
}

.cs-gallery__grid img {
  max-height: 520px;
  width: auto;
  flex: 1 1 0;
  min-width: 0;
  max-width: 24%;
  border-radius: var(--radius-md);
  object-fit: contain;
}

/* Reviews image */
.cs-reviews-image {
  width: 100%;
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.cs-reviews-image img {
  width: 100%;
  display: block;
  border-radius: var(--radius-xl);
}

/* Nav close wrapper (valid HTML: li wrapping button inside ul) */
.nav__close-wrapper {
  list-style: none;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .hero__grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-2xl);
  }

  .hero__description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__ctas {
    justify-content: center;
  }

  .hero__social {
    justify-content: center;
  }

  .hero-stats {
    margin-inline: auto;
  }

  .hero__image img {
    margin: 0 auto;
    max-width: 380px;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .case-study-card {
    grid-template-columns: 1fr;
  }

  .case-study-card--reverse .case-study-card__image,
  .case-study-card--reverse .case-study-card__content {
    order: unset;
  }

  .case-study-card__image {
    min-height: 280px;
  }

  .hero-stats--compact {
    margin-top: var(--space-md);
  }
}

@media (max-width: 768px) {
  .section {
    padding: var(--space-3xl) 0;
  }

  .cs-hero__split {
    grid-template-columns: 1fr;
  }

  .nav__links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-primary);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    z-index: 999;
  }

  .nav__links.active {
    display: flex;
  }

  .nav__links a {
    font-size: 1.5rem;
    color: var(--color-white) !important;
  }

  .nav__toggle {
    display: block;
    z-index: 1001;
  }

  .nav__close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 2rem;
    cursor: pointer;
    display: none;
  }

  .nav__links.active .nav__close {
    display: block;
  }

  .advisory__grid {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin: 0 auto;
  }

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

  .footer__inner {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }

  .cs-body__features {
    grid-template-columns: 1fr;
  }

  .hero__ctas {
    flex-direction: column;
    align-items: center;
  }

  .case-study-card__metrics {
    gap: var(--space-md);
  }

  /* Stack press links on mobile */
  .cs-press__links {
    grid-template-columns: 1fr;
  }

  /* Gallery horizontal scroll on mobile */
  .cs-gallery__grid {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x mandatory;
    padding-bottom: var(--space-sm);
  }

  .cs-gallery__grid img {
    flex: 0 0 75%;
    max-width: 75%;
    max-height: 400px;
    scroll-snap-align: center;
  }

  /* Team spotlight mobile padding */
  .cs-team-spotlight__copy {
    padding: var(--space-md) var(--space-lg);
  }

  /* Hero image side stacks and centers on mobile */
  .cs-hero__image--side {
    max-width: 280px;
    margin: 0 auto;
  }

  /* CTA button group stacks on mobile */
  .cs-cta-group {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .about__stats {
    grid-template-columns: 1fr;
  }

  .stat__number {
    font-size: 2rem;
  }

  .logo-bar__grid {
    gap: var(--space-lg);
  }

  .logo-bar__item {
    height: 24px;
  }

  /* Hero stats: stack to single column on very small screens */
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  /* Compact hero stats on case study pages */
  .hero-stats--compact {
    max-width: 100%;
  }

  .hero-stats--compact .hero-stat {
    padding: 0.4rem 0.75rem;
  }

  /* Case study card milestone badges: allow wrapping */
  .case-study-card__milestone {
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
  }

  /* Container padding tighter on small screens */
  .container {
    padding: 0 var(--space-sm);
  }

  /* Case study hero tags wrap nicely */
  .cs-hero__meta {
    gap: 0.5rem;
  }

  .cs-hero__tag {
    font-size: 0.7rem;
    padding: 0.25rem 0.625rem;
  }

  /* Press cards: smaller padding on mobile */
  .cs-press__link {
    padding: var(--space-sm);
    gap: 0.5rem;
  }

  .cs-press__title {
    font-size: 0.8rem;
  }

  /* Timeline adjustments */
  .timeline__item {
    padding-left: 56px;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline__dot {
    left: 10px;
    width: 18px;
    height: 18px;
  }
}