:root {
  --bg-primary: #111827;
  --bg-secondary: #1f2937;
  --bg-glass: rgba(31, 41, 55, 0.6);
  --text-primary: #f0f0f0;
  --text-secondary: #a0a0a0;
  --accent-1: #00f2fe;
  --accent-2: #4facfe;
  --accent-3: #7b2cbf;
  --gradient-primary: linear-gradient(
    135deg,
    var(--accent-1) 0%,
    var(--accent-2) 100%
  );
  --gradient-secondary: linear-gradient(
    135deg,
    var(--accent-3) 0%,
    var(--accent-2) 100%
  );
  --font-heading: "Outfit", sans-serif;
  --font-body: "Inter", sans-serif;
  --transition-fast: 0.2s ease;
  --transition-slow: 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

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

/* Typography */
h1 {
  font-size: clamp(3rem, 5vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

p {
  color: var(--text-secondary);
  font-size: 1.125rem;
  margin-bottom: 1.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  border-radius: 50px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition-slow);
  border: none;
  outline: none;
  gap: 0.5rem;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--bg-primary);
  box-shadow: 0 4px 15px rgba(79, 172, 254, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(79, 172, 254, 0.5);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.4);
}

/* Navigation */
nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.5rem 0;
  transition: var(--transition-slow);
  background: transparent;
}

nav.scrolled {
  background: rgba(17, 24, 39, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding: 1rem 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.05em;
}

.logo span {
  color: var(--accent-2);
}

.nav-links {
  display: flex;
  gap: 2.5rem;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition-fast);
}

.nav-links a:hover {
  color: var(--accent-1);
}

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

.nav-links {
  align-items: center;
}

.lang-btn {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  border-radius: 20px;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("hero_bg.png");
  background-size: cover;
  background-position: center;
  opacity: 0.4;
  z-index: -2;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(17, 24, 39, 0.2) 0%,
    rgba(17, 24, 39, 1) 100%
  );
  z-index: -1;
}

.hero-content {
  max-width: 800px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

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

.scroll-indicator i {
  width: 32px;
  height: 32px;
  color: rgba(255, 255, 255, 0.5);
  transition: var(--transition-fast);
}

.scroll-indicator:hover i {
  color: var(--accent-1);
}

@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-15px);
  }
  60% {
    transform: translateY(-7px);
  }
}

/* Sections General */
section {
  padding: 8rem 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 5rem;
}

/* Services Section */
.services {
  background: var(--bg-secondary);
  position: relative;
}

.services::after {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.1),
    transparent
  );
}

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

.service-card {
  background: var(--bg-glass);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 24px;
  padding: 3rem 2rem;
  transition: var(--transition-slow);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition-slow);
  z-index: -1;
}

.service-card:hover {
  transform: translateY(-10px);
  border-color: rgba(79, 172, 254, 0.3);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.service-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: rgba(79, 172, 254, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
  color: var(--accent-1);
  transition: var(--transition-slow);
}

.service-card:hover .service-icon {
  background: var(--gradient-primary);
  color: var(--bg-primary);
  transform: scale(1.1);
}

/* About Section */
.about {
  position: relative;
}

.about-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-visual::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120%;
  height: 120%;
  background: radial-gradient(
    circle,
    rgba(123, 44, 191, 0.2) 0%,
    transparent 70%
  );
  z-index: -1;
}

.glass-panel {
  background: rgba(31, 41, 55, 0.6);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  padding: 2rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
  transition: var(--transition-slow);
}

.glass-panel:hover {
  transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.code-snippet pre {
  font-family: "Fira Code", monospace;
  font-size: 0.9rem;
  color: #a5d6ff;
  overflow-x: auto;
}

.code-snippet code {
  white-space: pre;
}

/* Contact Section */
.contact {
  background: var(--bg-secondary);
}

.contact-container {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.contact-details {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.contact-details li {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.contact-details i {
  color: var(--accent-1);
}

/* Footer */
footer {
  background: var(--bg-primary);
  padding: 4rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.footer-logo {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
}

.footer-logo span {
  color: var(--accent-2);
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-1);
}

.copyright {
  color: rgba(255, 255, 255, 0.3);
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* Animations */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.8s ease-out,
    transform 0.8s ease-out;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 {
  transition-delay: 0.2s;
}
.delay-2 {
  transition-delay: 0.4s;
}

.animate-spin {
  animation: spin 1s linear infinite;
}

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

/* Responsive */
@media (max-width: 992px) {
  .about-container {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 1.5rem;
    padding: 2rem;
    background: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .nav-links.active {
    display: flex;
  }

  .lang-btn {
    align-self: flex-start;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero-cta {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    width: 100%;
  }

  .contact-form-wrapper {
    padding: 2rem;
  }
}