/* Base Colors */
:root {
  --color-primary: #050b1a;
  --color-secondary: #08142e;
  --color-surface: rgba(255, 255, 255, 0.06);
  --color-text-primary: #f4f7ff;
  --color-text-secondary: rgba(244, 247, 255, 0.72);
  --color-accent-primary: #2f7bff;
  --color-accent-secondary: #28d7ff;
  --color-border: rgba(244, 247, 255, 0.14);
  --color-glow: rgba(40, 215, 255, 0.35);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--color-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

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

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

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

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

.text-accent-secondary {
  color: var(--color-accent-secondary);
}

.border-border {
  border-color: var(--color-border);
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: -200px;
  left: 0;
  right: 0;
  background: var(--color-secondary);
  border-top: 1px solid var(--color-border);
  padding: 1.5rem;
  z-index: 9999;
  transition: bottom 0.5s ease;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
}

.cookie-banner.show {
  bottom: 0;
}

.cookie-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.cookie-text {
  flex: 1;
  min-width: 300px;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.cookie-link {
  color: var(--color-accent-primary);
  text-decoration: underline;
}

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

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

.cookie-btn {
  padding: 0.75rem 1.5rem;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
}

.cookie-btn-accept {
  background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
  color: var(--color-primary);
}

.cookie-btn-accept:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(47, 123, 255, 0.4);
}

.cookie-btn-decline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
}

.cookie-btn-decline:hover {
  border-color: var(--color-accent-secondary);
  background: rgba(40, 215, 255, 0.1);
}

/* Header */
.header-fixed {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(5, 11, 26, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: all 0.3s ease;
}

.header-fixed.scrolled {
  background: rgba(5, 11, 26, 0.98);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.logo-circle {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
  border-radius: 50%;
  box-shadow: 0 0 20px var(--color-glow);
}

.logo-circle-sm {
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
  border-radius: 50%;
}

.nav-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.3s ease;
  position: relative;
}

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

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent-secondary);
  transition: width 0.3s ease;
}

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

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 73px;
  left: 0;
  right: 0;
  background: rgba(8, 20, 46, 0.98);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transform: translateY(-100%);
  transition: transform 0.3s ease;
  z-index: 999;
}

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

.nav-link-mobile {
  display: block;
  color: var(--color-text-primary);
  text-decoration: none;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
  transition: color 0.3s ease;
}

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

/* Buttons */
.btn-primary {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
  color: var(--color-primary);
  text-decoration: none;
  border-radius: 12px;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(47, 123, 255, 0.4);
}

.btn-primary-lg {
  display: inline-block;
  padding: 1rem 2rem;
  background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
  color: var(--color-primary);
  text-decoration: none;
  border-radius: 16px;
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn-primary-lg:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(47, 123, 255, 0.5);
}

.btn-secondary {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: transparent;
  color: var(--color-text-primary);
  text-decoration: none;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  font-weight: 600;
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn-secondary:hover {
  border-color: var(--color-accent-secondary);
  background: rgba(40, 215, 255, 0.1);
  box-shadow: 0 0 20px rgba(40, 215, 255, 0.2);
}

.btn-secondary-lg {
  display: inline-block;
  padding: 1rem 2rem;
  background: transparent;
  color: var(--color-text-primary);
  text-decoration: none;
  border-radius: 16px;
  border: 1px solid var(--color-border);
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn-secondary-lg:hover {
  border-color: var(--color-accent-secondary);
  background: rgba(40, 215, 255, 0.1);
  box-shadow: 0 0 20px rgba(40, 215, 255, 0.2);
}

.btn-secondary-sm {
  padding: 0.5rem 1rem;
  background: transparent;
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  font-weight: 500;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  cursor: pointer;
}

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

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(5, 11, 26, 0.9);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 1rem;
}

.modal.active {
  opacity: 1;
  pointer-events: all;
}

.modal-content {
  background: var(--color-secondary);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 2rem;
  max-width: 500px;
  width: 100%;
  position: relative;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
  transition: color 0.3s ease;
}

.modal-close:hover {
  color: var(--color-accent-secondary);
}

.support-item {
  padding: 1rem;
  background: var(--color-surface);
  border-radius: 12px;
  border: 1px solid var(--color-border);
}

/* Hero Section */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 80px;
  background: radial-gradient(ellipse at top, rgba(47, 123, 255, 0.15), transparent 50%),
    radial-gradient(ellipse at bottom right, rgba(40, 215, 255, 0.1), transparent 50%), var(--color-primary);
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: float 20s infinite ease-in-out;
}

.hero-orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(47, 123, 255, 0.3), transparent);
  top: -200px;
  right: -200px;
  animation-delay: 0s;
}

.hero-orb-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(40, 215, 255, 0.25), transparent);
  bottom: -150px;
  left: -150px;
  animation-delay: 7s;
}

.hero-orb-3 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(47, 123, 255, 0.2), transparent);
  top: 50%;
  left: 30%;
  animation-delay: 14s;
}

@keyframes float {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(30px, -30px) scale(1.1);
  }
  66% {
    transform: translate(-20px, 20px) scale(0.9);
  }
}

.hero-visual {
  position: relative;
  animation: floatSlow 6s infinite ease-in-out;
}

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

.shadow-glow {
  box-shadow: 0 20px 60px rgba(40, 215, 255, 0.3);
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.feature-icon {
  width: 40px;
  height: 40px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-primary);
}

/* Function Strips */
.function-strip {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.function-strip:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--color-accent-secondary);
}

.function-strip:hover .function-glow {
  opacity: 1;
}

.function-icon-wrapper {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, rgba(47, 123, 255, 0.2), rgba(40, 215, 255, 0.2));
  border: 1px solid var(--color-accent-primary);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-secondary);
}

.function-glow {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 200px;
  background: linear-gradient(to left, var(--color-glow), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

/* Level Cards */
.level-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 2rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.level-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent-primary), var(--color-accent-secondary));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.level-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--color-accent-secondary);
  transform: translateY(-5px);
}

.level-card:hover::before {
  opacity: 1;
}

.level-card-2 {
  transform: translateY(-20px);
}

.level-card-3 {
  transform: translateY(-40px);
}

.level-card-2:hover {
  transform: translateY(-25px);
}

.level-card-3:hover {
  transform: translateY(-45px);
}

.level-number {
  font-size: 3rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 1rem;
}

/* Glass Panel */
.glass-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  backdrop-filter: blur(10px);
}

/* Filter Buttons */
.filter-btn,
.case-btn {
  padding: 0.75rem 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  color: var(--color-text-secondary);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

.filter-btn:hover,
.case-btn:hover {
  border-color: var(--color-accent-secondary);
  color: var(--color-accent-secondary);
}

.filter-btn.active,
.case-btn.active {
  background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
  border-color: transparent;
  color: var(--color-primary);
}

.hidden {
  display: none;
}

/* Process Timeline */
.process-timeline {
  position: relative;
  padding-left: 40px;
}

.process-timeline::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-accent-primary), var(--color-accent-secondary));
}

.process-item {
  position: relative;
  margin-bottom: 3rem;
}

.process-node {
  position: absolute;
  left: -32px;
  top: 0;
  width: 16px;
  height: 16px;
  background: var(--color-accent-secondary);
  border: 3px solid var(--color-primary);
  border-radius: 50%;
  box-shadow: 0 0 20px var(--color-glow);
}

.process-content {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 1.5rem;
}

/* Service Cards */
.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 2rem;
  transition: all 0.3s ease;
}

.service-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--color-accent-secondary);
  transform: translateY(-5px);
}

.service-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, rgba(47, 123, 255, 0.2), rgba(40, 215, 255, 0.2));
  border: 1px solid var(--color-accent-primary);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-secondary);
  margin-bottom: 1rem;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-accent-primary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

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

/* FAQ */
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-question {
  width: 100%;
  padding: 1.5rem;
  background: transparent;
  border: none;
  color: var(--color-text-primary);
  font-size: 1.1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  transition: color 0.3s ease;
}

.faq-question:hover {
  color: var(--color-accent-secondary);
}

.faq-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer p {
  padding: 0 1.5rem 1.5rem;
  color: var(--color-text-secondary);
}

/* Form */
.form-input {
  width: 100%;
  padding: 0.875rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  color: var(--color-text-primary);
  font-size: 1rem;
  transition: all 0.3s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent-secondary);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 20px rgba(40, 215, 255, 0.2);
}

.form-input::placeholder {
  color: rgba(244, 247, 255, 0.4);
}

/* Footer */
.footer-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

/* Responsive */
@media (max-width: 1024px) {
  .level-card-2,
  .level-card-3 {
    transform: translateY(0);
  }

  .level-card-2:hover,
  .level-card-3:hover {
    transform: translateY(-5px);
  }
}

@media (max-width: 768px) {
  .cookie-content {
    flex-direction: column;
    align-items: flex-start;
  }

  .cookie-buttons {
    width: 100%;
  }

  .cookie-btn {
    flex: 1;
  }

  .hero-section {
    min-height: auto;
    padding-top: 100px;
    padding-bottom: 60px;
  }

  .hero-orb-1,
  .hero-orb-2,
  .hero-orb-3 {
    width: 300px;
    height: 300px;
  }

  .function-strip {
    flex-direction: column;
    text-align: center;
  }

  .process-timeline {
    padding-left: 30px;
  }

  .process-timeline::before {
    left: 12px;
  }

  .process-node {
    left: -26px;
    width: 12px;
    height: 12px;
  }
}