:root {
  --color-primary: #0F172A;
  --color-secondary: #1E293B;
  --color-accent: #38BDF8;
  --color-accent-hover: #0EA5E9;
  --color-text: #1a1a1a;
  --color-text-light: #4b5563;
  --color-bg: #ffffff;
  --color-bg-alt: #f9fafb;
  --color-glass: rgba(255, 255, 255, 0.7);
  --color-glass-border: rgba(255, 255, 255, 0.3);
  --color-overlay: rgba(15, 23, 42, 0.7);

  --font-family: 'Space Grotesk', sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.6;

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

  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
  --shadow-glow: 0 0 20px rgba(56, 189, 248, 0.3);

  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: var(--font-size-base);
}

body {
  font-family: var(--font-family);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-primary);
  line-height: 1.2;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

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

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

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section-padding {
  padding: var(--space-2xl) 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  border: 2px solid transparent;
  min-width: 44px;
  min-height: 44px;
  font-family: var(--font-family);
}

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

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

.btn-secondary {
  border-color: var(--color-accent);
  color: var(--color-primary);
}

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

.btn-dark {
  background-color: var(--color-primary);
  color: #ffffff;
}

.btn-dark:hover {
  background-color: var(--color-secondary);
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--color-bg);
  border-bottom: 1px solid #e5e7eb;
  transition: var(--transition-base);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--color-accent);
  border-radius: var(--radius-sm);
}

.nav-desktop {
  display: none;
}

@media (min-width: 1024px) {
  .nav-desktop {
    display: flex;
    gap: var(--space-lg);
  }
}

.nav-link {
  font-weight: 500;
  color: var(--color-secondary);
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: var(--transition-base);
}

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

.mobile-menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  z-index: 1100;
}

@media (min-width: 1024px) {
  .mobile-menu-toggle {
    display: none;
  }
}

.mobile-menu-toggle span {
  width: 30px;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition-base);
}

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

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

.mobile-menu-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  height: 100vh;
  background: var(--color-bg);
  z-index: 1050;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  transition: var(--transition-slow);
}

.mobile-menu.active {
  right: 0;
}

.mobile-nav-link {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  background: var(--color-primary);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.9) 0%, rgba(15, 23, 42, 0.4) 100%);
}

.hero-content {
  position: relative;
  z-index: 10;
  color: #ffffff;
  max-width: 800px;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  color: #ffffff;
  margin-bottom: var(--space-md);
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  margin-bottom: var(--space-xl);
  color: rgba(255, 255, 255, 0.9);
}

.grid {
  display: grid;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
  border: 1px solid #e5e7eb;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

.card-image {
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  overflow: hidden;
  height: 200px;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

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

.glass-card {
  background: var(--color-glass);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-glass-border);
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-title h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  position: relative;
  display: inline-block;
  padding-bottom: var(--space-sm);
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--color-accent);
}

.faq-item {
  margin-bottom: var(--space-md);
  border-radius: var(--radius-md);
  background: var(--color-bg-alt);
  overflow: hidden;
}

.faq-question {
  padding: var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  color: var(--color-primary);
  transition: var(--transition-fast);
}

.faq-question:hover {
  background: #f3f4f6;
}

.faq-answer {
  padding: 0 var(--space-md);
  max-height: 0;
  overflow: hidden;
  transition: all var(--transition-base);
  color: var(--color-text-light);
}

.faq-item.active .faq-answer {
  padding: 0 var(--space-md) var(--space-md);
  max-height: 500px;
}

.faq-icon {
  transition: var(--transition-base);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.testimonial-card {
  background: #ffffff;
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  text-align: center;
}

.testimonial-quote {
  font-size: 1.25rem;
  font-style: italic;
  margin-bottom: var(--space-lg);
  color: var(--color-secondary);
}

.testimonial-author {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.testimonial-name {
  font-weight: 700;
  color: var(--color-primary);
}

.testimonial-role {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.footer {
  background: var(--color-primary);
  color: #ffffff;
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-grid {
  display: grid;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer-logo {
  color: #ffffff;
  margin-bottom: var(--space-md);
}

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

.footer-title {
  color: #ffffff;
  font-size: 1.1rem;
  margin-bottom: var(--space-lg);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-sm);
}

.footer-link {
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-accent);
  padding-left: 5px;
}

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

.footer-contact-item {
  display: flex;
  gap: 0.75rem;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--color-primary);
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid #d1d5db;
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: 1rem;
  transition: var(--transition-base);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.1);
}

.form-notice {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-top: 1rem;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: var(--color-primary);
  color: #ffffff;
  padding: var(--space-md) 0;
  z-index: 2000;
  transform: translateY(100%);
  transition: var(--transition-slow);
}

.cookie-banner.show {
  transform: translateY(0);
}

.cookie-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

@media (min-width: 768px) {
  .cookie-container {
    flex-direction: row;
    justify-content: space-between;
  }
}

.cookie-text {
  font-size: 0.9rem;
  max-width: 700px;
  text-align: center;
}

@media (min-width: 768px) {
  .cookie-text {
    text-align: left;
  }
}

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

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.text-gradient {
  background: linear-gradient(90deg, var(--color-accent), #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.team-grid {
  display: grid;
  gap: var(--space-2xl);
}

@media (min-width: 768px) {
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .team-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

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

.team-photo {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  margin: 0 auto var(--space-lg);
  overflow: hidden;
  border: 4px solid var(--color-accent);
}

.team-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.stats-grid {
  background: var(--color-primary);
  color: #ffffff;
  padding: var(--space-2xl) 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
  text-align: center;
}

@media (min-width: 1024px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-accent);
  display: block;
}

.stat-label {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.error-message {
  color: #ef4444;
  font-size: 0.85rem;
  margin-top: 0.25rem;
  display: none;
}

.form-input.invalid {
  border-color: #ef4444;
}

.form-input.invalid + .error-message {
  display: block;
}

.success-message {
  background: #dcfce7;
  color: #166534;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  text-align: center;
  margin-top: var(--space-md);
  display: none;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}