/* ========================================
   MODERN PORTFOLIO - PREMIUM DESIGN SYSTEM
   ======================================== */

/* CSS Variables - Design Tokens */
:root {
  /* Primary Colors - Vibrant Purple/Cyan Palette */
  --color-primary: #8b5cf6;
  --color-primary-dark: #7c3aed;
  --color-primary-light: #a78bfa;
  --color-secondary: #06b6d4;
  --color-secondary-dark: #0891b2;
  --color-secondary-light: #22d3ee;

  /* Accent Colors */
  --color-accent: #f59e0b;
  --color-accent-light: #fbbf24;
  --color-success: #10b981;
  --color-danger: #ef4444;
  --color-warning: #f59e0b;

  /* Neutral Colors */
  --color-dark: #0f172a;
  --color-dark-secondary: #1e293b;
  --color-gray: #64748b;
  --color-gray-light: #cbd5e1;
  --color-light: #f1f5f9;
  --color-white: #ffffff;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #8b5cf6 0%, #06b6d4 100%);
  --gradient-secondary: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  --gradient-hero: linear-gradient(
    135deg,
    rgba(139, 92, 246, 0.9) 0%,
    rgba(6, 182, 212, 0.9) 100%
  );

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-glow: 0 0 20px rgba(139, 92, 246, 0.5);

  /* Typography */
  --font-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --font-heading: "Outfit", "Inter", sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

/* Import Google Fonts */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@300;400;500;600;700;800;900&display=swap");

/* ========================================
   NAVIGATION
   ======================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-lg);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: var(--transition-base);
}

.nav-logo:hover {
  transform: scale(1.05);
}

.nav-menu {
  display: flex;
  gap: var(--spacing-xl);
  list-style: none;
  align-items: center;
}

.nav-link {
  text-decoration: none;
  color: var(--color-dark);
  font-weight: 600;
  font-size: 0.95rem;
  padding: var(--spacing-xs) var(--spacing-sm);
  position: relative;
  transition: var(--transition-base);
  letter-spacing: 0.02em;
}

.nav-link::before {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 100%;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: transform var(--transition-base);
}

.nav-link:hover::before,
.nav-link.active::before {
  transform: translateX(-50%) scaleX(1);
}

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

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

.language-switcher {
  display: flex;
  gap: var(--spacing-xs);
  background: var(--color-light);
  padding: 0.25rem;
  border-radius: var(--radius-full);
}

.lang-link {
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  transition: var(--transition-base);
  color: var(--color-gray);
}

.lang-link.active {
  background: var(--gradient-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.lang-link:hover:not(.active) {
  background: var(--color-white);
  color: var(--color-primary);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
}

.bar {
  width: 25px;
  height: 3px;
  background: var(--color-dark);
  border-radius: var(--radius-full);
  transition: var(--transition-base);
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: var(--gradient-dark);
  padding-top: 80px;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
      circle at 20% 50%,
      rgba(139, 92, 246, 0.2) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 80%,
      rgba(6, 182, 212, 0.2) 0%,
      transparent 50%
    );
  animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
}

.hero-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content {
  animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 0.5rem 1.25rem;
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: var(--radius-full);
  color: var(--color-primary-light);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
  animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-badge i {
  animation: rotate 2s linear infinite;
}

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

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, #ffffff 0%, #a78bfa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-subtitle {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  color: var(--color-secondary-light);
  margin-bottom: var(--spacing-md);
  font-weight: 600;
  animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--color-gray-light);
  margin-bottom: var(--spacing-xl);
  line-height: 1.8;
  animation: fadeInUp 1s ease-out 0.8s both;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  animation: fadeInUp 1s ease-out 1s both;
}

.hero-image {
  position: relative;
  animation: fadeInRight 1s ease-out 0.5s both;
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-2xl);
}

.hero-image-wrapper::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: var(--gradient-primary);
  opacity: 0.1;
  animation: rotate 20s linear infinite;
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-2xl);
}

.floating-elements {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.floating-element {
  position: absolute;
  border-radius: var(--radius-full);
  animation: float 6s ease-in-out infinite;
}

.floating-element:nth-child(1) {
  top: 20%;
  left: 10%;
  width: 60px;
  height: 60px;
  background: rgba(139, 92, 246, 0.1);
  animation-delay: 0s;
}

.floating-element:nth-child(2) {
  top: 60%;
  right: 15%;
  width: 80px;
  height: 80px;
  background: rgba(6, 182, 212, 0.1);
  animation-delay: 2s;
}

.floating-element:nth-child(3) {
  bottom: 20%;
  left: 20%;
  width: 40px;
  height: 40px;
  background: rgba(245, 158, 11, 0.1);
  animation-delay: 4s;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(180deg);
  }
}

/* ========================================
   BUTTONS
   ======================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 1rem 2rem;
  border: none;
  border-radius: var(--radius-lg);
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

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

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

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

.btn-secondary {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
}

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

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

/* ========================================
   SECTIONS
   ======================================== */

.section {
  padding: var(--spacing-2xl) 0;
  position: relative;
}

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

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

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  animation: fadeInUp 0.8s ease-out;
}

.section-badge {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  background: var(--gradient-primary);
  color: var(--color-white);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-md);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  color: var(--color-dark);
}

.section-subtitle {
  font-size: 1.25rem;
  color: var(--color-gray);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ========================================
   CARDS
   ======================================== */

.card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

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

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.card-icon {
  width: 70px;
  height: 70px;
  border-radius: var(--radius-lg);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
}

.card:hover .card-icon {
  transform: scale(1.1) rotate(5deg);
  box-shadow: var(--shadow-glow);
}

.card-icon i {
  font-size: 2rem;
  color: var(--color-white);
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--color-dark);
}

.card-description {
  color: var(--color-gray);
  line-height: 1.7;
}

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

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}

/* ========================================
   GLASSMORPHISM EFFECTS
   ======================================== */

.glass {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
}

.glass-dark {
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
  background: var(--gradient-dark);
  color: var(--color-gray-light);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

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

.footer-section h3 {
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
}

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

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.footer-links a {
  color: var(--color-gray-light);
  text-decoration: none;
  transition: var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.footer-links a:hover {
  color: var(--color-primary-light);
  transform: translateX(5px);
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.social-link {
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  text-decoration: none;
  transition: var(--transition-base);
  font-size: 1.25rem;
}

.social-link:hover {
  background: var(--gradient-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-lg);
  text-align: center;
  color: var(--color-gray);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-image {
    order: -1;
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   ANIMATIONS & UTILITIES
   ======================================== */

.fade-in {
  animation: fadeIn 0.8s ease-out;
}

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

.slide-up {
  animation: slideUp 0.8s ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

/* Main Content Spacing */
.main-content {
  margin-top: 80px;
}