:root {
  --color-primary: #000000;
  --color-primary-dark: #1a1a1a;
  --color-primary-light: #333333;
  --color-secondary: #ffffff;
  --color-accent: #4a4a4a;
  --color-accent-light: #666666;
  --color-accent-lighter: #999999;

  --color-gray-50: #fafafa;
  --color-gray-100: #f5f5f5;
  --color-gray-200: #e5e5e5;
  --color-gray-300: #d4d4d4;
  --color-gray-400: #a3a3a3;
  --color-gray-500: #737373;
  --color-gray-600: #525252;
  --color-gray-700: #404040;
  --color-gray-800: #262626;
  --color-gray-900: #171717;

  --font-heading: "Raleway", sans-serif;
  --font-body: "Open Sans", sans-serif;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.25);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  --skew-angle: -2deg;
  --skew-angle-reverse: 2deg;
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  color: var(--color-gray-900);
  line-height: 1.6;
  overflow-x: hidden;
  background-color: var(--color-secondary);
}

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

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 700;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 700;
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 2rem);
  font-weight: 600;
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-gray-700);
  font-size: 1rem;
  line-height: 1.7;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: all var(--transition-normal);
}

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

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

.btn,
button:not(.toggle-button):not(#mobileMenuToggle),
input[type="submit"] {
  display: inline-block;
  padding: 1rem 2rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  text-align: center;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before,
button:not(.toggle-button):not(#mobileMenuToggle)::before,
input[type="submit"]::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition:
    width var(--transition-slow),
    height var(--transition-slow);
  z-index: -1;
}

.btn:hover::before,
button:not(.toggle-button):not(#mobileMenuToggle):hover::before,
input[type="submit"]:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-secondary);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background-color: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
  background-color: var(--color-secondary);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.read-more,
a[href*="read-more"],
a[class*="read-more"] {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  position: relative;
  padding-bottom: 0.25rem;
  transition: all var(--transition-normal);
}

.read-more::after,
a[href*="read-more"]::after,
a[class*="read-more"]::after {
  content: "→";
  transition: transform var(--transition-normal);
}

.read-more:hover,
a[href*="read-more"]:hover,
a[class*="read-more"]:hover {
  color: var(--color-accent);
}

.read-more:hover::after,
a[href*="read-more"]:hover::after,
a[class*="read-more"]:hover::after {
  transform: translateX(5px);
}

.read-more::before,
a[href*="read-more"]::before,
a[class*="read-more"]::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-normal);
}

.read-more:hover::before,
a[href*="read-more"]:hover::before,
a[class*="read-more"]:hover::before {
  width: 100%;
}

header {
  background-color: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
  transition: all var(--transition-normal);
}

header.scrolled {
  box-shadow: var(--shadow-lg);
  background-color: rgba(0, 0, 0, 0.95);
}

.logo a {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.75rem;
  color: var(--color-secondary);
  letter-spacing: -0.03em;
  transition: all var(--transition-normal);
}

.logo a:hover {
  color: var(--color-gray-300);
  transform: scale(1.05);
}

nav ul li a {
  position: relative;
  color: var(--color-secondary);
  padding: 0.5rem 0;
  font-weight: 500;
}

nav ul li a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-secondary);
  transition: width var(--transition-normal);
}

nav ul li a:hover::after {
  width: 100%;
}

#mobileMenuToggle {
  background: none;
  border: none;
  color: var(--color-secondary);
  cursor: pointer;
  transition: transform var(--transition-normal);
}

#mobileMenuToggle:hover {
  transform: scale(1.1);
}

#hero {
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

#hero h1,
#hero p,
#hero .btn {
  color: var(--color-secondary);
}

.animate-fade-in {
  animation: fadeIn 1s ease-in-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-bounce {
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

.parallax-section {
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

.skewed-grid {
  position: relative;
}

.skewed-grid::before {
  content: "";
  position: absolute;
  top: -50px;
  left: 0;
  right: 0;
  height: 100px;
  background: linear-gradient(
    var(--skew-angle),
    transparent 49%,
    var(--color-gray-100) 50%
  );
  z-index: -1;
}

.skewed-grid-item {
  position: relative;
  transform: skewY(var(--skew-angle));
  transition: transform var(--transition-normal);
}

.skewed-grid-item > * {
  transform: skewY(calc(var(--skew-angle) * -1));
}

.skewed-grid-item:hover {
  transform: skewY(0deg) scale(1.02);
}

.card,
.item,
.testimonial,
.team-member,
.product-card,
.project-card,
.resource-card,
.gallery-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background-color: var(--color-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-md);
}

.card:hover,
.item:hover,
.testimonial:hover,
.team-member:hover,
.product-card:hover,
.project-card:hover,
.resource-card:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: var(--shadow-xl);
}

.card-image,
.item-image,
.testimonial-image {
  width: 100%;
  height: 250px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-image img,
.item-image img,
.testimonial-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
  margin: 0 auto;
}

.card:hover .card-image img,
.item:hover .item-image img {
  transform: scale(1.1);
}

.card-content,
.item-content,
.testimonial-content {
  padding: var(--spacing-lg);
  width: 100%;
}

.testimonial .card-image img,
.team-member img {
  border-radius: var(--radius-full);
  width: 100px;
  height: 100px;
  object-fit: cover;
  margin: 0 auto;
}

.card-image:has(img.rounded-full) {
  height: auto;
  padding: var(--spacing-lg) 0;
}

#research {
  background-color: var(--color-secondary);
}

.research-content,
.research-image {
  transition:
    opacity var(--transition-slow),
    transform var(--transition-slow);
}

.research-content.revealed,
.research-image.revealed {
  opacity: 1;
  transform: translateX(0);
}

.research-image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  width: 100%;
  height: auto;
}

.timeline-container {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-lg) 0;
}

.timeline-container::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(
    to bottom,
    var(--color-gray-300),
    var(--color-gray-500),
    var(--color-gray-300)
  );
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-xl);
  opacity: 0;
  transform: translateY(30px);
  animation: timelineSlide 0.6s ease forwards;
}

.timeline-item:nth-child(1) {
  animation-delay: 0.1s;
}
.timeline-item:nth-child(2) {
  animation-delay: 0.2s;
}
.timeline-item:nth-child(3) {
  animation-delay: 0.3s;
}
.timeline-item:nth-child(4) {
  animation-delay: 0.4s;
}
.timeline-item:nth-child(5) {
  animation-delay: 0.5s;
}

@keyframes timelineSlide {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.timeline-marker {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 20px;
  background-color: var(--color-primary);
  border: 4px solid var(--color-secondary);
  border-radius: var(--radius-full);
  z-index: 2;
  transition: all var(--transition-normal);
}

.timeline-item:hover .timeline-marker {
  background-color: var(--color-accent);
  transform: translateX(-50%) scale(1.3);
  box-shadow: 0 0 0 8px rgba(0, 0, 0, 0.1);
}

.timeline-content {
  background-color: var(--color-gray-50);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  margin-left: calc(50% + 40px);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.timeline-item:nth-child(even) .timeline-content {
  margin-left: 0;
  margin-right: calc(50% + 40px);
}

.timeline-item:hover .timeline-content {
  background-color: var(--color-secondary);
  box-shadow: var(--shadow-lg);
  transform: scale(1.02);
}

@media (max-width: 768px) {
  .timeline-container::before {
    left: 20px;
  }

  .timeline-marker {
    left: 20px;
  }

  .timeline-content {
    margin-left: 60px;
  }

  .timeline-item:nth-child(even) .timeline-content {
    margin-left: 60px;
    margin-right: 0;
  }
}

#case-studies {
  background-color: var(--color-gray-100);
}

#projects {
  background-color: var(--color-secondary);
}

.progress-bar {
  width: 100%;
  height: 12px;
  background-color: var(--color-gray-200);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-full);
  transition: width 1s ease;
  position: relative;
  overflow: hidden;
}

.progress-fill::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

#gallery {
  background-color: var(--color-gray-100);
}

.gallery-item {
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.gallery-item:hover {
  box-shadow: var(--shadow-xl);
  transform: scale(1.05);
}

.gallery-item img {
  transition: transform var(--transition-slow);
}

.gallery-item:hover img {
  transform: scale(1.15) rotate(2deg);
}

#behind-the-scenes {
  background-color: var(--color-secondary);
}

.toggle-item {
  background-color: var(--color-gray-50);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.toggle-item:hover {
  box-shadow: var(--shadow-lg);
}

.toggle-button {
  background: none;
  border: none;
  width: 100%;
  cursor: pointer;
  transition: background-color var(--transition-normal);
}

.toggle-button:hover {
  background-color: var(--color-gray-100);
}

.toggle-icon {
  transition: transform var(--transition-normal);
}

.toggle-button.active .toggle-icon {
  transform: rotate(45deg);
}

.toggle-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.toggle-content.active {
  max-height: 500px;
}

#testimonials {
  background-color: var(--color-gray-100);
}

.testimonial {
  background-color: var(--color-secondary);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  position: relative;
}

.testimonial::before {
  content: '"';
  position: absolute;
  top: var(--spacing-md);
  left: var(--spacing-md);
  font-size: 4rem;
  color: var(--color-gray-200);
  font-family: Georgia, serif;
  line-height: 1;
}

#resources {
  background-color: var(--color-gray-900);
  color: var(--color-secondary);
}

#resources h2,
#resources h3 {
  color: var(--color-secondary);
}

#resources p {
  color: var(--color-gray-300);
}

.resource-card {
  background-color: var(--color-gray-800);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
  border: 2px solid transparent;
}

.resource-card:hover {
  background-color: var(--color-gray-700);
  border-color: var(--color-secondary);
  transform: translateY(-5px);
}

#contact {
  background-color: var(--color-secondary);
}

.contact-form {
  background-color: var(--color-gray-50);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: all var(--transition-normal);
  background-color: var(--color-secondary);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

.contact-form label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  color: var(--color-gray-900);
}

.contact-form button {
  width: 100%;
  background-color: var(--color-primary);
  color: var(--color-secondary);
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.contact-form button:hover {
  background-color: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

footer {
  background-color: var(--color-primary);
  color: var(--color-secondary);
}

footer h3,
footer h4 {
  color: var(--color-secondary);
}

footer a {
  color: var(--color-gray-400);
  transition: all var(--transition-normal);
  display: inline-block;
  position: relative;
}

footer a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-secondary);
  transition: width var(--transition-normal);
}

footer a:hover {
  color: var(--color-secondary);
}

footer a:hover::after {
  width: 100%;
}

footer ul li a[href*="facebook"]::before,
footer ul li a[href*="twitter"]::before,
footer ul li a[href*="instagram"]::before,
footer ul li a[href*="linkedin"]::before {
  content: "";
  display: inline-block;
  width: 20px;
  height: 20px;
  margin-right: 8px;
  vertical-align: middle;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

footer ul li a[href*="facebook"] {
  font-weight: 600;
}

footer ul li a[href*="twitter"] {
  font-weight: 600;
}

footer ul li a[href*="instagram"] {
  font-weight: 600;
}

footer ul li a[href*="linkedin"] {
  font-weight: 600;
}

.success-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    var(--color-gray-100),
    var(--color-secondary)
  );
}

.success-content {
  text-align: center;
  padding: var(--spacing-2xl);
  background-color: var(--color-secondary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  max-width: 600px;
  margin: var(--spacing-lg);
}

.success-icon {
  font-size: 5rem;
  color: var(--color-primary);
  animation: successPulse 1.5s ease-in-out infinite;
}

@keyframes successPulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

.legal-page {
  padding-top: 100px;
  min-height: 100vh;
  background-color: var(--color-secondary);
}

.legal-content {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--spacing-2xl) var(--spacing-lg);
}

.legal-content h1 {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 3px solid var(--color-gray-200);
}

.legal-content h2 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.legal-content p {
  margin-bottom: var(--spacing-lg);
  text-align: justify;
}

.legal-content ul,
.legal-content ol {
  margin-left: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.legal-content li {
  margin-bottom: var(--spacing-sm);
  color: var(--color-gray-700);
}

[data-reveal] {
  transition:
    opacity 0.8s ease,
    transform 0.8s ease;
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.float-animation {
  animation: float 3s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

.pulse-animation {
  animation: pulse 2s ease-in-out infinite;
}

.hover-lift {
  transition:
    transform var(--transition-normal),
    box-shadow var(--transition-normal);
}

.hover-lift:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.glass-effect {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  h3 {
    font-size: 1.5rem;
  }

  .card-content,
  .item-content {
    padding: var(--spacing-md);
  }

  .skewed-grid-item {
    transform: none;
  }

  .skewed-grid-item > * {
    transform: none;
  }
}

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.mb-0 {
  margin-bottom: 0;
}
.mb-1 {
  margin-bottom: var(--spacing-xs);
}
.mb-2 {
  margin-bottom: var(--spacing-sm);
}
.mb-3 {
  margin-bottom: var(--spacing-md);
}
.mb-4 {
  margin-bottom: var(--spacing-lg);
}
.mb-5 {
  margin-bottom: var(--spacing-xl);
}

.mt-0 {
  margin-top: 0;
}
.mt-1 {
  margin-top: var(--spacing-xs);
}
.mt-2 {
  margin-top: var(--spacing-sm);
}
.mt-3 {
  margin-top: var(--spacing-md);
}
.mt-4 {
  margin-top: var(--spacing-lg);
}
.mt-5 {
  margin-top: var(--spacing-xl);
}

.p-0 {
  padding: 0;
}
.p-1 {
  padding: var(--spacing-xs);
}
.p-2 {
  padding: var(--spacing-sm);
}
.p-3 {
  padding: var(--spacing-md);
}
.p-4 {
  padding: var(--spacing-lg);
}
.p-5 {
  padding: var(--spacing-xl);
}

[style*="background-image"] {
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
}

.bg-overlay {
  position: relative;
}

.bg-overlay::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5));
  z-index: 1;
}

.bg-overlay > * {
  position: relative;
  z-index: 2;
}

@media print {
  header,
  footer,
  #mobileMenuToggle {
    display: none;
  }

  body {
    background-color: white;
    color: black;
  }

  a {
    text-decoration: underline;
  }
}