/* ===================================
   VenturoGlobal.tech - Styles
   Modern, Professional, Minimal
   =================================== */

/* === CSS Variables === */
:root {
  /* Colors */
  --primary-blue: #0A2463;
  --secondary-blue: #1E5AA8;
  --light-blue: #3E7CB1;
  --silver: #C0C0C0;
  --light-silver: #E8E8E8;
  --green-accent: #1B5E20;
  --light-green: #2E7D32;

  /* Neutrals */
  --white: #FFFFFF;
  --off-white: #F8F9FA;
  --light-gray: #E9ECEF;
  --medium-gray: #6C757D;
  --dark-gray: #343A40;
  --black: #0D1117;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Space Grotesk', var(--font-primary);

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

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

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(10, 36, 99, 0.05);
  --shadow-md: 0 4px 12px rgba(10, 36, 99, 0.1);
  --shadow-lg: 0 8px 24px rgba(10, 36, 99, 0.15);
  --shadow-xl: 0 16px 48px rgba(10, 36, 99, 0.2);
}

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

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

body {
  font-family: var(--font-primary);
  font-weight: 400;
  line-height: 1.7;
  color: var(--dark-gray);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--primary-blue);
  margin-bottom: var(--spacing-md);
}

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, 2.5vw, 1.5rem); }

p {
  margin-bottom: var(--spacing-md);
}

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

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

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

section {
  padding: var(--spacing-3xl) 0;
  position: relative;
}

/* === Container === */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* === Language Switcher === */
.language-switcher {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1000;
  display: flex;
  gap: var(--spacing-xs);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: var(--spacing-xs);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  animation: slideInRight 0.6s ease;
}

.lang-btn {
  padding: var(--spacing-xs) var(--spacing-md);
  border: 2px solid var(--light-gray);
  background: transparent;
  color: var(--medium-gray);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-btn:hover {
  border-color: var(--secondary-blue);
  color: var(--secondary-blue);
}

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

/* Language Content Switching */
body:not(.lang-ru) [lang="ru"] {
  display: none !important;
}

body.lang-ru [lang="en"] {
  display: none !important;
}

body.lang-ru [lang="ru"] {
  display: inline !important;
}

body.lang-ru div[lang="ru"] {
  display: block !important;
}

/* === Navigation === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 999;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

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

.logo-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
}

.logo {
  width: 45px;
  height: 45px;
  transition: transform var(--transition-normal);
}

.logo-link:hover .logo {
  transform: scale(1.05) rotate(5deg);
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-blue);
}

.tech-accent {
  color: var(--green-accent);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-link {
  font-weight: 500;
  color: var(--dark-gray);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--secondary-blue);
  transition: width var(--transition-fast);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link.nav-cta {
  background: var(--primary-blue);
  color: var(--white);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-md);
}

.nav-link.nav-cta::after {
  display: none;
}

.nav-link.nav-cta:hover {
  background: var(--secondary-blue);
  color: var(--white);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--primary-blue);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* === Hero Section === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding-top: 100px;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg,
    rgba(10, 36, 99, 0.08) 0%,
    rgba(30, 90, 168, 0.12) 50%,
    rgba(27, 94, 32, 0.08) 100%);
  z-index: -1;
}

.hero-background::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(30, 90, 168, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 20s ease-in-out infinite;
}

.hero-background::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(27, 94, 32, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 15s ease-in-out infinite reverse;
}

.hero-content {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  animation: fadeInUp 1s ease;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--dark-gray);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.hero-tagline {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--medium-gray);
  margin-bottom: var(--spacing-xl);
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--medium-gray);
  font-size: 0.875rem;
  animation: fadeIn 1s ease 1s backwards;
}

.scroll-arrow {
  width: 24px;
  height: 24px;
  border-left: 2px solid var(--medium-gray);
  border-bottom: 2px solid var(--medium-gray);
  transform: rotate(-45deg);
  animation: bounce 2s infinite;
}

/* === Buttons === */
.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: none;
  transition: all var(--transition-normal);
  text-align: center;
}

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

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

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

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

/* === Section Header === */
.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-3xl);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: var(--spacing-md);
}

.section-description {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--medium-gray);
}

/* === Services Section === */
.services {
  background: var(--off-white);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-xl);
  align-items: stretch;
}

.service-card {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
  border-color: var(--secondary-blue);
}

.service-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
  color: var(--white);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  transition: transform var(--transition-normal);
}

.service-card:hover .service-icon {
  transform: scale(1.1) rotate(5deg);
}

.service-icon svg {
  width: 30px;
  height: 30px;
}

.service-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-blue);
}

.service-description {
  color: var(--medium-gray);
  line-height: 1.7;
  margin-bottom: 0;
}

/* === Advantages Section === */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.advantage-card {
  position: relative;
  padding: var(--spacing-xl);
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  overflow: hidden;
}

.advantage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--secondary-blue), var(--green-accent));
  transition: width var(--transition-normal);
}

.advantage-card:hover::before {
  width: 8px;
}

.advantage-card:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-lg);
}

.advantage-number {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  color: var(--light-gray);
  margin-bottom: var(--spacing-sm);
  line-height: 1;
}

.advantage-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.advantage-description {
  color: var(--medium-gray);
  margin-bottom: 0;
}

/* === Case Studies === */
.cases {
  background: var(--off-white);
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.case-card {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  border-top: 4px solid transparent;
}

.case-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
}

.case-card:nth-child(1) { border-top-color: var(--secondary-blue); }
.case-card:nth-child(2) { border-top-color: var(--green-accent); }
.case-card:nth-child(3) { border-top-color: var(--light-green); }
.case-card:nth-child(4) { border-top-color: var(--light-blue); }

.case-tag {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--light-blue);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-md);
}

.case-title {
  font-size: 1.35rem;
  margin-bottom: var(--spacing-sm);
}

.case-description {
  color: var(--medium-gray);
  margin-bottom: 0;
}

/* === Team Section === */
.team-content {
  max-width: 900px;
  margin: 0 auto;
}

.team-text {
  font-size: 1.1rem;
  color: var(--dark-gray);
  line-height: 1.8;
  margin-bottom: var(--spacing-xl);
}

.team-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.stat {
  text-align: center;
  padding: var(--spacing-xl);
  background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
  border-radius: var(--radius-lg);
  color: var(--white);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal);
}

.stat:hover {
  transform: translateY(-5px);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: 1rem;
  opacity: 0.95;
}

/* === Contact Section === */
.contact {
  background: var(--off-white);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--spacing-3xl);
  margin-top: var(--spacing-2xl);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.contact-item {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
  color: var(--white);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon svg {
  width: 24px;
  height: 24px;
}

.contact-details h4 {
  color: var(--primary-blue);
  margin-bottom: var(--spacing-xs);
  font-size: 1.1rem;
}

.contact-details a,
.contact-details p {
  color: var(--medium-gray);
  margin-bottom: 0;
}

.contact-details a:hover {
  color: var(--secondary-blue);
}

.contact-socials {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.social-link {
  width: 45px;
  height: 45px;
  background: var(--white);
  border: 2px solid var(--light-gray);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-blue);
  transition: all var(--transition-fast);
}

.social-link:hover {
  background: var(--primary-blue);
  border-color: var(--primary-blue);
  color: var(--white);
  transform: translateY(-3px);
}

.social-link svg {
  width: 22px;
  height: 22px;
}

/* === Contact Form === */
.contact-form {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.form-group {
  position: relative;
  margin-bottom: var(--spacing-xl);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--spacing-md);
  font-family: var(--font-primary);
  font-size: 1rem;
  border: 2px solid var(--light-gray);
  border-radius: var(--radius-md);
  background: var(--white);
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--secondary-blue);
}

.form-group label {
  position: absolute;
  top: var(--spacing-md);
  left: var(--spacing-md);
  color: var(--medium-gray);
  font-size: 1rem;
  pointer-events: none;
  transition: all var(--transition-fast);
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label,
.form-group select:focus ~ label,
.form-group select:not([value=""]) ~ label {
  top: -10px;
  left: var(--spacing-sm);
  font-size: 0.875rem;
  color: var(--secondary-blue);
  background: var(--white);
  padding: 0 var(--spacing-xs);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-privacy {
  display: flex;
  gap: var(--spacing-sm);
  align-items: flex-start;
  margin-bottom: var(--spacing-xl);
}

.form-privacy input[type="checkbox"] {
  margin-top: 4px;
  width: 18px;
  height: 18px;
  cursor: pointer;
  flex-shrink: 0;
}

.privacy-label {
  font-size: 0.875rem;
  color: var(--medium-gray);
  line-height: 1.5;
  cursor: pointer;
}

.btn-submit {
  width: 100%;
}

.form-message {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  text-align: center;
  display: none;
}

.form-message.success {
  display: block;
  background: rgba(27, 94, 32, 0.1);
  color: var(--green-accent);
}

.form-message.error {
  display: block;
  background: rgba(211, 47, 47, 0.1);
  color: #d32f2f;
}

/* === Footer === */
.footer {
  background: var(--primary-blue);
  color: var(--white);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-brand {
  max-width: 400px;
}

.footer-logo {
  width: 50px;
  height: 50px;
  margin-bottom: var(--spacing-md);
  filter: brightness(0) invert(1);
}

.footer-tagline {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
  line-height: 1.7;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.footer-column {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-column h4 {
  color: var(--white);
  font-size: 1.1rem;
  margin-bottom: var(--spacing-md);
}

.footer-column a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

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

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

.footer-bottom p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  margin: 0;
}

.footer-legal {
  display: flex;
  gap: var(--spacing-lg);
}

.footer-legal a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

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

/* === Animations === */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(5deg);
  }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0) rotate(-45deg);
  }
  40% {
    transform: translateY(-10px) rotate(-45deg);
  }
  60% {
    transform: translateY(-5px) rotate(-45deg);
  }
}

/* === Responsive Design === */
@media (max-width: 1024px) {
  .contact-wrapper {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    transform: translateY(-150%);
    opacity: 0;
    transition: all var(--transition-normal);
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
  }

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

  .mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
  }

  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }

  .services-grid,
  .advantages-grid,
  .cases-grid {
    grid-template-columns: 1fr;
  }

  .hero-cta {
    flex-direction: column;
  }

  .team-stats {
    grid-template-columns: 1fr;
  }

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

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

  .language-switcher {
    top: 90px;
  }
}

@media (max-width: 480px) {
  section {
    padding: var(--spacing-2xl) 0;
  }

  .section-header {
    margin-bottom: var(--spacing-xl);
  }

  .service-card,
  .advantage-card,
  .case-card {
    padding: var(--spacing-lg);
  }

  .contact-form {
    padding: var(--spacing-lg);
  }
}

/* === Utility Classes === */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

/* === Print Styles === */
@media print {
  .navbar,
  .language-switcher,
  .hero-cta,
  .scroll-indicator,
  .contact-form,
  .footer {
    display: none;
  }

  section {
    page-break-inside: avoid;
  }
}

/* === Dark Mode / Auto Theme === */
@media (prefers-color-scheme: dark) {
  :root {
    /* Dark Mode Colors */
    --primary-blue: #3E7CB1;
    --secondary-blue: #1E5AA8;
    --white: #0D1117;
    --off-white: #161B22;
    --light-gray: #21262D;
    --medium-gray: #8B949E;
    --dark-gray: #C9D1D9;
    --black: #F0F6FC;
    
    /* Dark backgrounds */
    --bg-primary: #0D1117;
    --bg-secondary: #161B22;
    --bg-tertiary: #21262D;
    
    /* Dark text */
    --text-primary: #F0F6FC;
    --text-secondary: #C9D1D9;
    --text-muted: #8B949E;
  }
  
  body {
    background: var(--bg-primary);
    color: var(--text-primary);
  }
  
  .navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--bg-tertiary);
  }
  
  .hero-background {
    background: linear-gradient(135deg,
      rgba(62, 124, 177, 0.1) 0%,
      rgba(30, 90, 168, 0.15) 50%,
      rgba(27, 94, 32, 0.1) 100%);
  }
  
  .service-card,
  .advantage-card,
  .case-card,
  .team-card,
  .contact-form {
    background: var(--bg-secondary);
    border-color: var(--bg-tertiary);
  }
  
  .footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--bg-tertiary);
  }
  
  /* Form inputs */
  input,
  textarea,
  select {
    background: var(--bg-tertiary);
    border-color: var(--bg-tertiary);
    color: var(--text-primary);
  }
  
  input:focus,
  textarea:focus,
  select:focus {
    border-color: var(--primary-blue);
    background: var(--bg-secondary);
  }
  
  /* Links */
  a {
    color: var(--primary-blue);
  }
  
  /* Shadows */
  .service-card:hover,
  .advantage-card:hover,
  .case-card:hover,
  .team-card:hover {
    box-shadow: 0 10px 30px rgba(62, 124, 177, 0.2);
  }
}