:root {
  --color-primary: #0f4c75;
  --color-primary-dark: #0a2847;
  --color-primary-light: #3282b8;
  --color-secondary: #00a86b;
  --color-accent: #ff6b35;
  --color-bg: #ffffff;
  --color-surface: #f8f9fa;
  --color-surface-alt: #ecf0f1;
  --color-text: #2c3e50;
  --color-text-light: #7f8c8d;
  --color-text-inverse: #ffffff;
  --color-border: #bdc3c7;
  --color-success: #27ae60;
  --color-error: #e74c3c;
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
  --text-xs: clamp(0.75rem, 2vw, 0.875rem);
  --text-sm: clamp(0.875rem, 2.5vw, 1rem);
  --text-base: clamp(1rem, 3vw, 1.125rem);
  --text-lg: clamp(1.125rem, 3.5vw, 1.5rem);
  --text-xl: clamp(1.5rem, 4vw, 2rem);
  --text-2xl: clamp(1.875rem, 5vw, 2.5rem);
  --text-3xl: clamp(2.25rem, 6vw, 3rem);
  --text-4xl: clamp(3rem, 8vw, 4rem);
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 20px rgba(15,76,117,0.15);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.sr-only:focus {
  position: fixed;
  top: 0;
  left: 0;
  width: auto;
  height: auto;
  padding: 1rem;
  margin: 0;
  overflow: visible;
  clip: auto;
  background: var(--color-primary);
  color: white;
  z-index: 10000;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  opacity: 0;
  animation: fadeIn 400ms ease-out forwards;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes revealUp {
  from { transform: translateY(40px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes revealLeft {
  from { transform: translateX(-40px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes revealRight {
  from { transform: translateX(40px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes revealScale {
  from { transform: scale(0.85); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

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

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-10px); }
  75% { transform: translateX(10px); }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

header {
  position: sticky;
  top: 0;
  background: var(--color-bg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-md) 0;
  z-index: 1000;
  transition: padding var(--transition-normal), box-shadow var(--transition-normal);
}

header.scrolled {
  padding: var(--space-sm) 0;
  box-shadow: var(--shadow-md);
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

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

.logo {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav {
  display: flex;
  gap: var(--space-xl);
  align-items: center;
  flex: 1;
}

.nav a {
  text-decoration: none;
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: 500;
  position: relative;
  transition: color var(--transition-fast);
}

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

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

.nav a.active {
  color: var(--color-primary);
}

.lang-selector {
  position: relative;
}

.lang-btn {
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
  font-size: var(--text-sm);
}

.lang-btn:hover {
  background-color: var(--color-surface);
}

.lang-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 150px;
  margin-top: var(--space-sm);
  z-index: 1001;
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.lang-dropdown.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.lang-option {
  padding: var(--space-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--color-text);
  transition: background-color var(--transition-fast);
  font-size: var(--text-sm);
}

.lang-option:hover {
  background-color: var(--color-surface);
}

.lang-option.selected {
  background-color: var(--color-surface-alt);
  font-weight: 600;
}

.btn {
  padding: var(--space-md) var(--space-xl);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  filter: brightness(1.1);
  transform: scale(1.03);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  position: relative;
  overflow: hidden;
}

.btn-secondary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background-color: var(--color-primary);
  transition: left var(--transition-normal);
  z-index: -1;
}

.btn-secondary:hover::before {
  left: 0;
}

.btn-secondary:hover {
  color: var(--color-text-inverse);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  background: none;
  border: none;
  padding: var(--space-md);
}

.hamburger span {
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  transition: all var(--transition-normal);
  display: block;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translateY(12px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translateY(-12px);
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

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

  .nav.active {
    display: flex;
  }

  .nav a {
    font-size: var(--text-base);
  }
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  background-size: 400% 400%;
  animation: gradientShift 8s ease infinite;
  color: var(--color-text-inverse);
  overflow: hidden;
  padding: var(--space-3xl) var(--space-md);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 500px;
  height: 500px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  filter: blur(80px);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  text-align: center;
  animation: slideUp 600ms ease-out;
}

.hero-badge {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
  animation: slideUp 600ms ease-out 200ms backwards;
}

.hero h1 {
  font-size: var(--text-4xl);
  font-family: var(--font-heading);
  margin-bottom: var(--space-md);
  animation: slideUp 600ms ease-out 400ms backwards;
}

.hero p {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2xl);
  opacity: 0.95;
  animation: slideUp 600ms ease-out 600ms backwards;
}

.hero-ctas {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  animation: slideUp 600ms ease-out 800ms backwards;
}

.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}

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

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-title {
  font-size: var(--text-3xl);
  font-family: var(--font-heading);
  margin-bottom: var(--space-md);
  color: var(--color-primary);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-light);
}

.grid {
  display: grid;
  gap: var(--space-2xl);
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all var(--transition-normal);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.card-icon {
  width: 80px;
  height: 80px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  font-size: 2rem;
}

.card-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.card-desc {
  color: var(--color-text-light);
  font-size: var(--text-sm);
  line-height: 1.6;
}

.reveal-up { opacity: 0; transform: translateY(40px); }
.reveal-left { opacity: 0; transform: translateX(-40px); }
.reveal-right { opacity: 0; transform: translateX(40px); }
.reveal-scale { opacity: 0; transform: scale(0.85); }

.is-visible {
  animation: revealUp var(--transition-slow) ease-out forwards !important;
}

.reveal-left.is-visible {
  animation: revealLeft var(--transition-slow) ease-out forwards !important;
}

.reveal-right.is-visible {
  animation: revealRight var(--transition-slow) ease-out forwards !important;
}

.reveal-scale.is-visible {
  animation: revealScale var(--transition-slow) ease-out forwards !important;
}

.reveal-stagger.is-visible > * {
  animation: revealUp var(--transition-slow) ease-out forwards;
}

.reveal-stagger > :nth-child(1) { animation-delay: 0ms; }
.reveal-stagger > :nth-child(2) { animation-delay: 100ms; }
.reveal-stagger > :nth-child(3) { animation-delay: 200ms; }
.reveal-stagger > :nth-child(4) { animation-delay: 300ms; }
.reveal-stagger > :nth-child(5) { animation-delay: 400ms; }
.reveal-stagger > :nth-child(6) { animation-delay: 500ms; }

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

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

.stat-number {
  font-size: var(--text-4xl);
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  text-transform: uppercase;
}

footer {
  background-color: var(--color-primary-dark);
  color: var(--color-text-inverse);
  padding: var(--space-3xl) var(--space-md) var(--space-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}

.footer-col h3 {
  margin-bottom: var(--space-md);
  font-family: var(--font-heading);
}

.footer-col a,
.footer-col p {
  display: block;
  margin-bottom: var(--space-sm);
  opacity: 0.9;
  text-decoration: none;
  color: var(--color-text-inverse);
  font-size: var(--text-sm);
  transition: opacity var(--transition-fast);
}

.footer-col a:hover {
  opacity: 1;
  text-decoration: underline;
}

.footer-divider {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: var(--space-md);
  text-align: center;
  font-size: var(--text-xs);
  opacity: 0.8;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--space-md);
  display: none;
  z-index: 999;
  animation: slideUp 400ms ease-out;
}

.cookie-banner.show {
  display: flex;
}

.cookie-content {
  flex: 1;
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.cookie-text {
  font-size: var(--text-sm);
  flex: 1;
  min-width: 200px;
}

.cookie-text a {
  color: var(--color-text-inverse);
  text-decoration: underline;
}

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

.cookie-actions button {
  padding: var(--space-sm) var(--space-md);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: var(--text-sm);
  font-weight: 600;
}

.cookie-accept {
  background-color: var(--color-success);
  color: var(--color-text-inverse);
}

.cookie-reject {
  background-color: transparent;
  border: 1px solid var(--color-text-inverse);
  color: var(--color-text-inverse);
}

.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border: none;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-normal);
  z-index: 500;
}

.back-to-top.show {
  display: flex;
  animation: fadeIn 300ms ease-out;
}

.back-to-top:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-5px);
}

.toast {
  position: fixed;
  top: 20px;
  right: 20px;
  background: var(--color-success);
  color: var(--color-text-inverse);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  animation: slideUp 400ms ease-out;
  display: none;
}

.toast.show {
  display: block;
}

.toast.error {
  background: var(--color-error);
}

form {
  max-width: 600px;
}

.form-group {
  margin-bottom: var(--space-lg);
  position: relative;
}

label {
  display: block;
  margin-bottom: var(--space-sm);
  font-weight: 500;
  font-size: var(--text-sm);
  transition: all var(--transition-fast);
}

input,
textarea,
select {
  width: 100%;
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-base);
  transition: border-color var(--transition-normal);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(15, 76, 117, 0.1);
}

textarea {
  resize: vertical;
  min-height: 150px;
}

.accordion {
  margin-bottom: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.accordion-btn {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  background: var(--color-surface);
  border: none;
  cursor: pointer;
  font-size: var(--text-base);
  font-weight: 600;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color var(--transition-fast);
}

.accordion-btn:hover {
  background-color: var(--color-surface-alt);
}

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

.accordion-btn.active .accordion-icon {
  transform: rotate(45deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
  background: var(--color-bg);
}

.accordion-content.show {
  max-height: 1000px;
  padding: var(--space-md) var(--space-lg);
}

.spinner {
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: var(--color-text-inverse);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  display: inline-block;
}

@media (max-width: 768px) {
  .section {
    padding: var(--space-2xl) var(--space-md);
  }

  .section-title {
    font-size: var(--text-2xl);
  }

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

  .cookie-content {
    flex-direction: column;
    align-items: flex-start;
  }

  .back-to-top {
    width: 45px;
    height: 45px;
    bottom: 20px;
    right: 20px;
  }
}