/* Base Styles and CSS Reset */
:root {
  /* KPMG Color Variables */
  --primary-blue: #00338d;
  --primary-dark-blue: #002856;
  --primary-light-blue: #0051c2;
  --secondary-blue: #005eb8;
  --accent-blue: #00a3e0;
  --black: #000000;
  --white: #ffffff;
  --gray-900: #1a1a1a;
  --gray-800: #333333;
  --gray-700: #4d4d4d;
  --gray-600: #666666;
  --gray-500: #808080;
  --gray-400: #999999;
  --gray-300: #b3b3b3;
  --gray-200: #cccccc;
  --gray-100: #e6e6e6;
  --gray-50: #f2f2f2;

  /* Spacing Variables (8px system) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Font Variables */
  --font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Playfair Display", Georgia, Cambria, "Times New Roman", Times,
    serif;

  /* Border Radius */
  --radius-sm: 0.125rem;
  --radius-md: 0.25rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-full: 9999px;

  /* Shadow Variables */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Transition Variables */
  --transition-default: all 0.3s ease;
  --transition-slow: all 0.5s ease;
  --transition-fast: all 0.15s ease;

  /* Container Max Width */
  --container-max-width: 1440px;

  /* Z-index levels */
  --z-index-header: 1000;
  --z-index-dropdown: 990;
  --z-index-modal: 900;
}

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

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

body {
  font-family: var(--font-sans);
  line-height: 1.5;
  color: var(--gray-800);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
picture,
video,
canvas {
  display: block;
  max-width: 100%;
}

input,
button,
textarea,
select {
  font: inherit;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
}

ul,
ol {
  list-style: none;
}

a {
  text-decoration: none;
  color: inherit;
}

/* Utility Classes */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.section-header {
  text-align: center;
  max-width: 48rem;
  margin: 0 auto var(--space-16);
}

.section-title {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-blue);
  margin-bottom: var(--space-4);
  line-height: 1.2;
}

.section-description {
  font-size: 1.25rem;
  color: var(--gray-600);
  line-height: 1.6;
}

.highlight {
  color: var(--primary-blue);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: var(--transition-default);
  cursor: pointer;
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.875rem;
}

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

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

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

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

.btn-full {
  width: 100%;
}

/* Header and Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-index-header);
  background-color: var(--white);
  border-bottom: 1px solid var(--gray-100);
  padding: 0;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 72px;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-blue);
  letter-spacing: -0.5px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  height: 100%;
}

.nav-item {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
}

.nav-link {
  color: var(--gray-800);
  font-weight: 500;
  transition: var(--transition-fast);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: var(--space-2) var(--space-4);
  height: 100%;
  display: flex;
  align-items: center;
}

.nav-link:hover {
  color: var(--primary-blue);
}

/* Dropdown Styles */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  min-width: 480px;
  border: 1px solid var(--gray-100);
  padding: var(--space-6);
}

.has-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
}

.dropdown-content {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

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

.dropdown-title {
  color: var(--primary-blue);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.dropdown-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.dropdown-links a {
  color: var(--gray-700);
  font-size: 0.875rem;
  transition: var(--transition-fast);
  padding: var(--space-1) 0;
}

.dropdown-links a:hover {
  color: var(--primary-blue);
  padding-left: var(--space-2);
}

/* Mobile Menu */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--primary-blue);
  margin: 4px 0;
  transition: var(--transition-default);
}

@media (max-width: 1024px) {
  .mobile-menu-toggle {
    display: block;
  }

  .nav {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    height: calc(100vh - 72px);
    background-color: var(--white);
    padding: var(--space-4);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
  }

  .nav.active {
    transform: translateX(0);
  }

  .nav-list {
    flex-direction: column;
    gap: 0;
    height: auto;
  }

  .nav-item {
    width: 100%;
    height: auto;
  }

  .nav-link {
    padding: var(--space-4);
    width: 100%;
    justify-content: space-between;
  }

  .dropdown-menu {
    position: static;
    transform: none;
    box-shadow: none;
    min-width: 100%;
    border: none;
    padding: 0;
    opacity: 1;
    visibility: visible;
    display: none;
  }

  .dropdown-content {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .has-dropdown.active .dropdown-menu {
    display: block;
  }

  .nav-item .btn {
    width: 100%;
    margin-top: var(--space-4);
  }
}

/* Hero Section */
.hero {
  position: relative;
  padding: calc(var(--space-24) + 60px) 0 var(--space-20);
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-color: var(--white);
  overflow: hidden;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  position: relative;
  z-index: 1;
}

.hero-text {
  max-width: 36rem;
}

.badge {
  display: inline-block;
  padding: var(--space-1) var(--space-4);
  background-color: var(--primary-blue);
  color: var(--white);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-8);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary-blue);
  margin-bottom: var(--space-6);
  letter-spacing: -1px;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--gray-600);
  margin-bottom: var(--space-8);
  line-height: 1.6;
}

/* Services Section */
.services {
  padding: var(--space-20) 0;
  background-color: var(--gray-50);
}

.service-item {
  background-color: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: var(--transition-default);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.service-item:hover {
  border-color: var(--primary-blue);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.service-icon-container {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--primary-blue);
  color: var(--white);
}

.service-item-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary-blue);
  margin-bottom: var(--space-3);
  line-height: 1.4;
}

.service-item-description {
  color: var(--gray-600);
  margin-bottom: var(--space-4);
  line-height: 1.6;
}

/* Team Section */
.team {
  padding: var(--space-20) 0;
  background-color: var(--white);
}

.team-member {
  background-color: var(--white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition-default);
  border: 1px solid var(--gray-100);
}

.team-member:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-blue);
}

/* Case Studies Section */
.case-studies {
  padding: var(--space-20) 0;
  background-color: var(--gray-50);
}

.case-study {
  background-color: var(--white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition-default);
  border: 1px solid var(--gray-200);
}

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

.case-study-category {
  background-color: var(--primary-blue);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 500;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Contact Section */
.contact {
  padding: var(--space-20) 0;
  background-color: var(--white);
}

.contact-form-container {
  background-color: var(--gray-50);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  border: 1px solid var(--gray-200);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--space-3);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  color: var(--gray-700);
  transition: var(--transition-default);
  background-color: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 2px rgba(0, 51, 141, 0.1);
}

/* Footer */
.footer {
  background-color: var(--primary-blue);
  color: var(--white);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer-description {
  color: var(--gray-200);
  margin-bottom: var(--space-6);
}

.social-link {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-default);
}

.social-link:hover {
  background-color: var(--white);
  color: var(--primary-blue);
}

.footer-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-4);
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-links a {
  color: var(--gray-300);
  transition: var(--transition-default);
  font-size: 0.875rem;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
  .header {
    padding: var(--space-3) 0;
  }

  .nav {
    display: none;
  }

  .nav.active {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--white);
    padding: var(--space-4);
    box-shadow: var(--shadow-lg);
  }

  .nav-list {
    flex-direction: column;
    gap: var(--space-4);
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 992px) {
  .hero-content {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .services-container {
    grid-template-columns: repeat(4, 1fr);
  }

  .team-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .case-study-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .contact-content {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
  }
}