/* ==========================================
   CSS Custom Properties (Design Tokens)
   ========================================== */
:root {
  /* Colors - Modern, Sophisticated Palette */
  --color-primary: hsl(210, 70%, 45%);
  --color-primary-light: hsl(210, 70%, 55%);
  --color-primary-dark: hsl(210, 70%, 35%);
  --color-secondary: hsl(30, 80%, 55%);
  --color-accent: hsl(170, 60%, 45%);

  --color-bg: hsl(0, 0%, 98%);
  --color-surface: hsl(0, 0%, 100%);
  --color-text: hsl(220, 20%, 20%);
  --color-text-light: hsl(220, 15%, 45%);
  --color-border: hsl(220, 15%, 88%);

  --color-nav-bg: hsla(220, 30%, 15%, 0.98);
  --color-hero-overlay: hsla(210, 70%, 10%, 0.7);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Outfit', 'Inter', sans-serif;

  --fs-base: 1rem;
  --fs-sm: 0.875rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.5rem;
  --fs-2xl: 2rem;
  --fs-3xl: 2.5rem;
  --fs-4xl: 3.5rem;

  --fw-normal: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;

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

  /* Shadows */
  --shadow-sm: 0 1px 3px hsla(220, 20%, 20%, 0.08);
  --shadow-md: 0 4px 12px hsla(220, 20%, 20%, 0.12);
  --shadow-lg: 0 8px 24px hsla(220, 20%, 20%, 0.15);
  --shadow-xl: 0 16px 48px hsla(220, 20%, 20%, 0.2);

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Container */
  --container-max: 1200px;
  --container-padding: var(--space-md);
}

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

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

body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  font-weight: var(--fw-normal);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding-top: 170px;
  /* Account for fixed header height */
}

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

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

a:hover {
  color: var(--color-primary-light);
}

/* ==========================================
   Typography
   ========================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

h1 {
  font-size: var(--fs-4xl);
  margin-bottom: var(--space-lg);
}

h2 {
  font-size: var(--fs-3xl);
}

h3 {
  font-size: var(--fs-2xl);
}

h4 {
  font-size: var(--fs-xl);
}

p {
  margin-bottom: var(--space-md);
  color: var(--color-text-light);
}

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

.section {
  padding: var(--space-3xl) 0;
}

.section-alt {
  background-color: var(--color-surface);
}

/* ==========================================
   Header & Navigation
   ========================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--color-nav-bg);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
  gap: var(--space-lg);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-md);
  background: white;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 12px hsla(0, 0%, 0%, 0.3);
  transition: all var(--transition-base);
}

.nav-logo:hover {
  background: hsl(0, 0%, 98%);
  box-shadow: 0 6px 16px hsla(0, 0%, 0%, 0.4);
  transform: translateY(-2px);
}

.nav-logo img {
  height: 100px;
  width: auto;
  transition: transform var(--transition-base);
}

.nav-logo img:hover {
  transform: scale(1.05);
}

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

.nav-link {
  color: white;
  font-weight: var(--fw-medium);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
  white-space: nowrap;
}

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

.nav-link.active {
  color: var(--color-accent);
  font-weight: var(--fw-semibold);
}

.lang-switcher {
  display: flex;
  gap: var(--space-xs);
  background-color: hsla(0, 0%, 100%, 0.1);
  padding: var(--space-xs);
  border-radius: var(--radius-md);
}

.lang-btn {
  background: transparent;
  border: none;
  color: white;
  cursor: pointer;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  transition: all var(--transition-fast);
}

.lang-btn:hover {
  background-color: hsla(0, 0%, 100%, 0.1);
}

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

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: var(--fs-2xl);
  cursor: pointer;
  padding: var(--space-xs);
}

/* ==========================================
   Hero Section
   ========================================== */
.hero {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-3xl) 0;
  background: linear-gradient(135deg,
      hsl(210, 70%, 40%) 0%,
      hsl(210, 70%, 50%) 50%,
      hsl(170, 60%, 45%) 100%);
  color: white;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    radial-gradient(circle at 20% 50%, hsla(0, 0%, 100%, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, hsla(0, 0%, 100%, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  animation: fadeInUp 0.8s ease-out;
}

.hero-title {
  font-size: var(--fs-4xl);
  font-weight: var(--fw-bold);
  margin-bottom: var(--space-sm);
  color: white;
}

.hero-headline {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--space-lg);
  color: white;
  line-height: 1.4;
}

.hero-intro {
  font-size: var(--fs-lg);
  color: hsla(0, 0%, 100%, 0.9);
  max-width: 700px;
  margin: 0 auto;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

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

/* ==========================================
   Services Section
   ========================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.service-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

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

.service-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  font-size: var(--fs-xl);
  line-height: 1.3;
}

.service-card p {
  font-size: var(--fs-base);
  line-height: 1.7;
  text-align: left;
}

.service-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
}

/* ==========================================
   About/Team Section
   ========================================== */
.team-profile {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-2xl);
  align-items: start;
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-md);
}

.profile-image {
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.profile-info h3 {
  color: var(--color-primary);
  font-size: var(--fs-2xl);
}

.profile-role {
  color: var(--color-text-light);
  font-size: var(--fs-lg);
  font-weight: var(--fw-medium);
  margin-bottom: var(--space-md);
}

/* ==========================================
   Principles Section
   ========================================== */
.principles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.principle-card {
  background: white;
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-primary);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.principle-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.principle-card h4 {
  color: var(--color-primary);
}

/* ==========================================
   Pricing Section
   ========================================== */
.pricing-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.pricing-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: all var(--transition-base);
  border: 2px solid transparent;
}

.pricing-card:hover {
  border-color: var(--color-primary);
  transform: scale(1.05);
  box-shadow: var(--shadow-xl);
}

.pricing-amount {
  font-size: var(--fs-3xl);
  font-weight: var(--fw-bold);
  color: var(--color-primary);
  margin: var(--space-md) 0;
}

.pricing-label {
  font-size: var(--fs-sm);
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: var(--fw-medium);
}

/* ==========================================
   Contact Section
   ========================================== */
.contact-info {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-md);
  max-width: 600px;
  margin: var(--space-xl) auto 0;
}

.contact-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--space-md);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

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

.contact-label {
  font-weight: var(--fw-semibold);
  color: var(--color-text);
}

.contact-value {
  color: var(--color-text-light);
}

.contact-value a {
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

.contact-value a:hover {
  color: var(--color-primary-light);
  text-decoration: underline;
}

.contact-cta {
  margin-top: var(--space-lg);
  padding: var(--space-lg);
  background: linear-gradient(135deg, hsl(210, 70%, 95%), hsl(170, 60%, 95%));
  border-radius: var(--radius-md);
  text-align: center;
  color: var(--color-text);
}

/* ==========================================
   Footer
   ========================================== */
.footer {
  background-color: var(--color-nav-bg);
  color: white;
  padding: var(--space-2xl) 0;
  margin-top: var(--space-3xl);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
}

.footer-links a {
  color: white;
  opacity: 0.8;
  transition: opacity var(--transition-fast);
}

.footer-links a:hover {
  opacity: 1;
}

/* ==========================================
   Utility Classes
   ========================================== */
.section-title {
  text-align: center;
  margin-bottom: var(--space-xl);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  margin: var(--space-md) auto 0;
  border-radius: 2px;
}

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

.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: var(--color-primary);
  color: white;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-base);
  z-index: 1000;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

/* ==========================================
   Responsive Design
   ========================================== */
@media (max-width: 768px) {
  :root {
    --fs-4xl: 2rem;
    --fs-3xl: 1.75rem;
    --fs-2xl: 1.5rem;
    --fs-xl: 1.25rem;
    --container-padding: var(--space-md);
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-nav-bg);
    flex-direction: column;
    padding: var(--space-md);
    box-shadow: var(--shadow-lg);
  }

  .nav-menu.active {
    display: flex;
  }

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

  .team-profile {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .profile-image {
    max-width: 280px;
    margin: 0 auto;
  }

  .contact-item {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

html,
body {
  width: 100%;
  overflow-x: hidden;
  position: relative;
}

@media (max-width: 768px) {
  .back-to-top {
    bottom: 1rem;
    right: 1rem;
    width: 2.5rem;
    height: 2.5rem;
    font-size: 1.25rem;
  }

  .hero-title,
  .hero-headline {
    word-wrap: break-word;
    overflow-wrap: break-word;
    word-break: break-word;
    hyphens: auto;
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  :root {
    --fs-4xl: 1.75rem;
    --fs-3xl: 1.5rem;
    --fs-2xl: 1.25rem;
    --fs-xl: 1.125rem;
  }

  .nav-logo img {
    height: 60px;
    /* Smaller logo on mobile */
  }

  .services-grid,
  .principles-grid,
  .pricing-cards {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: var(--space-xl) 0;
    min-height: auto;
  }
}