@import url('https://cdn.jsdelivr.net/npm/tailwindcss@2.2.19/dist/tailwind.min.css');
@import url('https://cdn.jsdelivr.net/npm/remixicon@2.5.0/fonts/remixicon.css');

:root {
  --primary-color: #6C63FF;
  --primary-dark: #5548E6;
  --primary-light: #8980FF;
  --secondary-color: #FF6B9D;
  --secondary-dark: #E65588;
  --secondary-light: #FF8AB3;
  --accent-color: #00D9FF;
  --accent-dark: #00B8D9;
  --accent-light: #33E0FF;
  --dark-bg: #0F0F1E;
  --dark-secondary: #1A1A2E;
  --dark-tertiary: #252541;
  --text-primary: #FFFFFF;
  --text-secondary: #B8B8D1;
  --text-muted: #7E7E9A;
  --success-color: #00E6B8;
  --warning-color: #FFB800;
  --error-color: #FF4757;
  --gradient-primary: linear-gradient(135deg, #6C63FF 0%, #8980FF 100%);
  --gradient-secondary: linear-gradient(135deg, #FF6B9D 0%, #FF8AB3 100%);
  --gradient-accent: linear-gradient(135deg, #00D9FF 0%, #6C63FF 100%);
  --gradient-dark: linear-gradient(135deg, #0F0F1E 0%, #1A1A2E 100%);
  --shadow-sm: 0 2px 8px rgba(108, 99, 255, 0.1);
  --shadow-md: 0 4px 16px rgba(108, 99, 255, 0.15);
  --shadow-lg: 0 8px 32px rgba(108, 99, 255, 0.2);
  --shadow-xl: 0 16px 48px rgba(108, 99, 255, 0.25);
  --shadow-glow: 0 0 20px rgba(108, 99, 255, 0.4);
  --shadow-glow-accent: 0 0 20px rgba(0, 217, 255, 0.4);
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background-color: var(--dark-bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

::selection {
  background-color: var(--primary-color);
  color: var(--text-primary);
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--dark-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: 5px;
  transition: var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-light);
}

.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 15, 30, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(108, 99, 255, 0.1);
  transition: all var(--transition-normal);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
  border-bottom-color: rgba(108, 99, 255, 0.2);
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.75rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
  transition: var(--transition-fast);
}

.logo:hover {
  transform: scale(1.05);
  filter: brightness(1.2);
}

.nav-menu {
  display: flex;
  gap: 2.5rem;
  align-items: center;
  list-style: none;
}

.nav-menu a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  transition: var(--transition-fast);
  padding: 0.5rem 0;
}

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

.nav-menu a:hover {
  color: var(--text-primary);
}

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

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

.nav-menu a.active::after {
  width: 100%;
}

.mobile-menu-toggle {
  font-size: 1.75rem;
  color: var(--text-primary);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  transition: var(--transition-fast);
  border-radius: var(--border-radius-sm);
}

.mobile-menu-toggle:hover {
  background: var(--dark-tertiary);
  color: var(--primary-color);
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  max-width: 350px;
  height: 100vh;
  background: var(--dark-secondary);
  padding: 2rem;
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3);
  overflow-y: auto;
  z-index: 1001;
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-menu-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-size: 2rem;
  color: var(--text-primary);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  transition: var(--transition-fast);
  border-radius: var(--border-radius-sm);
}

.mobile-menu-close:hover {
  background: var(--dark-tertiary);
  color: var(--error-color);
}

.mobile-menu-items {
  margin-top: 4rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mobile-menu-items a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 500;
  padding: 1rem;
  border-radius: var(--border-radius-sm);
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.mobile-menu-items a:hover {
  background: var(--dark-tertiary);
  color: var(--primary-color);
}

.mobile-menu-items a.active {
  background: rgba(108, 99, 255, 0.1);
  color: var(--primary-color);
}

.mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.mobile-overlay.active {
  opacity: 1;
  visibility: visible;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border: none;
  border-radius: var(--border-radius-md);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  transform: translate(-50%, -50%);
  transition: width var(--transition-slow), height var(--transition-slow);
  z-index: -1;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

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

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--gradient-secondary);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(255, 107, 157, 0.4);
}

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

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

.btn-ghost {
  background: var(--dark-tertiary);
  color: var(--text-primary);
  border: 1px solid rgba(108, 99, 255, 0.2);
}

.btn-ghost:hover {
  background: var(--dark-secondary);
  border-color: var(--primary-color);
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--gradient-accent);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

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

.btn-sm {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1.125rem 2.25rem;
  font-size: 1.125rem;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--dark-secondary);
  border-top: 1px solid rgba(108, 99, 255, 0.2);
  padding: 1.5rem 2rem;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
  z-index: 999;
  transform: translateY(100%);
  transition: transform var(--transition-normal);
}

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

.cookie-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.cookie-text {
  flex: 1;
  min-width: 250px;
}

.cookie-text p {
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

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

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

.cookie-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.95rem;
}

.form-label.required::after {
  content: '*';
  color: var(--error-color);
  margin-left: 0.25rem;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.875rem 1.25rem;
  background: var(--dark-tertiary);
  border: 2px solid rgba(108, 99, 255, 0.2);
  border-radius: var(--border-radius-md);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all var(--transition-fast);
  font-family: inherit;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.1);
  background: var(--dark-secondary);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

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

.form-input.error,
.form-textarea.error,
.form-select.error {
  border-color: var(--error-color);
}

.form-error {
  display: block;
  margin-top: 0.5rem;
  color: var(--error-color);
  font-size: 0.875rem;
}

.form-checkbox,
.form-radio {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  cursor: pointer;
}

.form-checkbox input[type="checkbox"],
.form-radio input[type="radio"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--primary-color);
}

.form-checkbox label,
.form-radio label {
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.card {
  background: var(--dark-secondary);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  border: 1px solid rgba(108, 99, 255, 0.1);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(108, 99, 255, 0.3);
}

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

.card-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-glow);
}

.card-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.card-text {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.card-highlight {
  border: 2px solid var(--primary-color);
  background: rgba(108, 99, 255, 0.05);
}

.card-gradient {
  background: var(--gradient-dark);
  border: 1px solid rgba(108, 99, 255, 0.2);
}

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

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.accordion {
  background: var(--dark-secondary);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  margin-bottom: 1rem;
  border: 1px solid rgba(108, 99, 255, 0.1);
  transition: var(--transition-normal);
}

.accordion:hover {
  border-color: rgba(108, 99, 255, 0.3);
}

.accordion-header {
  padding: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  background: var(--dark-tertiary);
  transition: all var(--transition-fast);
  user-select: none;
}

.accordion-header:hover {
  background: var(--dark-secondary);
}

.accordion-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.accordion-icon {
  font-size: 1.5rem;
  color: var(--primary-color);
  transition: transform var(--transition-fast);
}

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

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.accordion.active .accordion-content {
  max-height: 1000px;
}

.accordion-body {
  padding: 1.5rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(108, 99, 255, 0.2);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.loader-container {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 3rem;
}

.pulse-animation {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-in;
}

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

.slide-in-left {
  animation: slideInLeft 0.6s ease-out;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-right {
  animation: slideInRight 0.6s ease-out;
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.scale-in {
  animation: scaleIn 0.5s ease-out;
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.glow-text {
  text-shadow: 0 0 20px rgba(108, 99, 255, 0.5);
}

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-border {
  border: 2px solid transparent;
  background: linear-gradient(var(--dark-secondary), var(--dark-secondary)) padding-box,
              var(--gradient-primary) border-box;
}

.floating {
  animation: floating 3s ease-in-out infinite;
}

@keyframes floating {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

.hero-section {
  padding: 8rem 2rem;
  background: var(--gradient-dark);
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(108, 99, 255, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  animation: floating 6s ease-in-out infinite;
}

.hero-section::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 217, 255, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  animation: floating 8s ease-in-out infinite;
  animation-delay: -4s;
}

.section {
  padding: 5rem 2rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 1.125rem;
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

.container-sm {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 2rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(108, 99, 255, 0.1);
  border: 1px solid rgba(108, 99, 255, 0.3);
  border-radius: var(--border-radius-lg);
  color: var(--primary-color);
  font-size: 0.875rem;
  font-weight: 600;
}

.badge-success {
  background: rgba(0, 230, 184, 0.1);
  border-color: rgba(0, 230, 184, 0.3);
  color: var(--success-color);
}

.badge-warning {
  background: rgba(255, 184, 0, 0.1);
  border-color: rgba(255, 184, 0, 0.3);
  color: var(--warning-color);
}

.badge-error {
  background: rgba(255, 71, 87, 0.1);
  border-color: rgba(255, 71, 87, 0.3);
  color: var(--error-color);
}

.alert {
  padding: 1.25rem 1.5rem;
  border-radius: var(--border-radius-md);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.alert-info {
  background: rgba(108, 99, 255, 0.1);
  border: 1px solid rgba(108, 99, 255, 0.3);
  color: var(--text-primary);
}

.alert-success {
  background: rgba(0, 230, 184, 0.1);
  border: 1px solid rgba(0, 230, 184, 0.3);
  color: var(--text-primary);
}

.alert-warning {
  background: rgba(255, 184, 0, 0.1);
  border: 1px solid rgba(255, 184, 0, 0.3);
  color: var(--text-primary);
}

.alert-error {
  background: rgba(255, 71, 87, 0.1);
  border: 1px solid rgba(255, 71, 87, 0.3);
  color: var(--text-primary);
}

.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(108, 99, 255, 0.3), transparent);
  margin: 3rem 0;
}

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

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

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

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.pt-1 { padding-top: 0.5rem; }
.pt-2 { padding-top: 1rem; }
.pt-3 { padding-top: 1.5rem; }
.pt-4 { padding-top: 2rem; }
.pt-5 { padding-top: 3rem; }

.pb-1 { padding-bottom: 0.5rem; }
.pb-2 { padding-bottom: 1rem; }
.pb-3 { padding-bottom: 1.5rem; }
.pb-4 { padding-bottom: 2rem; }
.pb-5 { padding-bottom: 3rem; }

@media (max-width: 1024px) {
  .nav-menu {
    display: none;
  }
  
  .section {
    padding: 4rem 1.5rem;
  }
  
  .hero-section {
    padding: 6rem 1.5rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .header-container {
    padding: 1rem 1.5rem;
  }
  
  .logo {
    font-size: 1.5rem;
  }
  
  .section {
    padding: 3rem 1rem;
  }
  
  .hero-section {
    padding: 5rem 1rem;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .cookie-content {
    flex-direction: column;
    align-items: stretch;
  }
  
  .cookie-buttons {
    justify-content: stretch;
  }
  
  .cookie-buttons .btn {
    flex: 1;
  }
  
  .card {
    padding: 1.5rem;
  }
  
  .grid-container {
    gap: 1.5rem;
  }
  
  .btn-lg {
    padding: 1rem 1.75rem;
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .section-title {
    font-size: 1.5rem;
  }
  
  .section-subtitle {
    font-size: 1rem;
  }
  
  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
  }
  
  .mobile-menu {
    max-width: 100%;
  }
}