:root {
  /* Dark Theme (Default) */
  --bg-dark: #0f172a;
  --bg-darker: #020617;
  --primary: #06b6d4;
  /* Cyan */
  --primary-glow: rgba(6, 182, 212, 0.5);
  --secondary: #8b5cf6;
  /* Violet */
  --secondary-glow: rgba(139, 92, 246, 0.5);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --glass-bg: rgba(15, 23, 42, 0.6);
  --glass-border: rgba(255, 255, 255, 0.1);
  --card-bg: rgba(255, 255, 255, 0.05);

  --font-main: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --transition: all 0.3s ease;
}

[data-theme="light"] {
  --bg-dark: #f8fafc;
  --bg-darker: #e2e8f0;
  --primary: #0891b2;
  /* Darker Cyan */
  --primary-glow: rgba(8, 145, 178, 0.3);
  --secondary: #7c3aed;
  /* Darker Violet */
  --secondary-glow: rgba(124, 58, 237, 0.3);
  --text-main: #0f172a;
  --text-muted: #475569;
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(0, 0, 0, 0.1);
  --card-bg: rgba(255, 255, 255, 0.5);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Background Effects */
.bg-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(to right, rgba(100, 116, 139, 0.1) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(100, 116, 139, 0.1) 1px, transparent 1px);
  background-size: 40px 40px;
  z-index: -2;
  mask-image: radial-gradient(circle at center, black 40%, transparent 80%);
  -webkit-mask-image: radial-gradient(circle at center, black 40%, transparent 80%);
}

.bg-glow {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
  opacity: 0.15;
  filter: blur(100px);
  z-index: -1;
  pointer-events: none;
}

/* Typography */
h1,
h2,
h3 {
  font-weight: 700;
  line-height: 1.2;
}

.text-gradient {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.1);
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  font-family: var(--font-main);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  box-shadow: 0 0 15px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px var(--primary-glow);
}

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

.btn-outline:hover {
  background: rgba(6, 182, 212, 0.1);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-glow {
  position: relative;
  overflow: hidden;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.logo-img {
  height: 44px;
  width: auto;
  display: block;
  filter: drop-shadow(0 0 1px rgba(255, 255, 255, 0.9));
}

.site-nav {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  cursor: pointer;
}

.theme-toggle {
  background: none;
  border: none;
  color: var(--text-main);
  cursor: pointer;
  font-size: 1.25rem;
  padding: 0.5rem;
  border-radius: 50%;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--primary);
}

[data-theme="light"] .icon-sun {
  display: none;
}

[data-theme="dark"] .icon-moon {
  display: none;
}

/* Hero Section */
.hero {
  padding-top: 8rem;
  padding-bottom: 4rem;
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

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

.badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid var(--primary);
  color: var(--primary);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  font-family: var(--font-mono);
}

.hero-headline {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  max-width: 500px;
}

.cta-group {
  display: flex;
  gap: 1rem;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.tech-circle {
  position: absolute;
  width: 400px;
  height: 400px;
  border: 2px solid var(--glass-border);
  border-radius: 50%;
  animation: spin 20s linear infinite;
}

.tech-circle::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 50%;
  width: 20px;
  height: 4px;
  background: var(--primary);
  box-shadow: 0 0 10px var(--primary);
}

.hero-img {
  max-width: 100%;
  height: auto;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 0 30px rgba(6, 182, 212, 0.3));
}

/* Services Section */
.section {
  padding: 6rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.section-subtitle {
  color: var(--primary);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.card {
  padding: 2rem;
  border-radius: 16px;
  transition: var(--transition);
  background: var(--card-bg);
}

.card:hover {
  transform: translateY(-10px);
  border-color: var(--primary);
  box-shadow: 0 10px 40px -10px rgba(6, 182, 212, 0.3);
}

.card-icon-wrapper {
  width: 100%;
  height: auto;
  background: transparent;
  border-radius: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.card-icon {
  width: 85%;
  height: auto;
  object-fit: contain;
  /* Remove filter if images are full color and not icons anymore, or keep if they are still treated as icons but large */
  filter: none;
}

/* Ensure dark mode doesn't invert these large images if they are photos/illustrations */
[data-theme="dark"] .card-icon {
  filter: none;
}

.card h3 {
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Approach Section */
.section-dark {
  background: rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .section-dark {
  background: rgba(0, 0, 0, 0.03);
}

.approach-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.feature-list {
  list-style: none;
  margin-top: 2rem;
}

.feature-list li {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.check-icon {
  width: 24px;
  height: 24px;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  flex-shrink: 0;
}

.approach-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.stat-card {
  padding: 2rem;
  text-align: center;
  border-radius: 16px;
}

.stat-number {
  display: block;
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary);
  font-family: var(--font-mono);
}

.stat-label {
  color: var(--text-muted);
}

/* Contact Section */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  border-radius: 24px;
  overflow: hidden;
}

.contact-info {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  padding: 3rem;
  color: white;
}

.contact-info h2 {
  margin-bottom: 1rem;
}

.contact-info p {
  opacity: 0.9;
  margin-bottom: 2rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 1.1rem;
}

.contact-item a {
  color: white;
  text-decoration: none;
}

.contact-form {
  padding: 3rem;
}

.form-group {
  position: relative;
  margin-bottom: 2rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--text-muted);
  padding: 0.5rem 0;
  color: var(--text-main);
  font-family: var(--font-main);
  font-size: 1rem;
  outline: none;
  transition: var(--transition);
}

.form-group label {
  position: absolute;
  top: 0.5rem;
  left: 0;
  color: var(--text-muted);
  transition: var(--transition);
  pointer-events: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group input:not(:placeholder-shown),
.form-group textarea:not(:placeholder-shown) {
  border-color: var(--primary);
}

.form-group input:focus~label,
.form-group textarea:focus~label,
.form-group input:not(:placeholder-shown)~label,
.form-group textarea:not(:placeholder-shown)~label {
  top: -1.2rem;
  font-size: 0.875rem;
  color: var(--primary);
}

.btn-block {
  width: 100%;
  justify-content: center;
}

/* Footer */
.site-footer {
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--glass-border);
  text-align: center;
}

.footer-brand {
  margin-bottom: 2rem;
}

.footer-bottom {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  padding: 1.5rem;
  border-radius: 12px;
  max-width: 350px;
  z-index: 2000;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.cookie-banner.hidden {
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
}

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

.floating {
  animation: float 6s ease-in-out infinite;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-20px);
  }
}

.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-100 {
  transition-delay: 0.1s;
}

.delay-200 {
  transition-delay: 0.2s;
}

.delay-300 {
  transition-delay: 0.3s;
}

.delay-400 {
  transition-delay: 0.4s;
}

/* Responsive */
@media (max-width: 768px) {
  .header-inner {
    padding: 0 1rem;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    height: 100vh;
    background: var(--bg-darker);
    flex-direction: column;
    justify-content: center;
    transition: var(--transition);
    border-left: 1px solid var(--glass-border);
  }

  .site-nav.active {
    right: 0;
  }

  .hero-inner,
  .approach-inner,
  .contact-wrapper {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-headline {
    font-size: 2.5rem;
  }

  .hero {
    padding-top: 6rem;
    text-align: center;
  }

  .hero-content {
    order: 2;
  }

  .hero-visual {
    order: 1;
  }

  .cta-group {
    justify-content: center;
  }

  .contact-info {
    padding: 2rem;
  }

  .contact-form {
    padding: 2rem;
  }

  .cookie-banner {
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
    max-width: none;
  }
}

/* Form Status Messages */
.form-status {
  margin-bottom: 1.5rem;
  border-radius: 8px;
  font-size: 0.95rem;
  transition: var(--transition);
  display: none;
}

.form-status.active {
  display: block;
  padding: 1rem;
  animation: fadeIn 0.3s ease-out;
}

.status-success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #10b981;
  /* Emerald 500 */
}

.status-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #ef4444;
  /* Red 500 */
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Contact Features */
.contact-features {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2rem;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: rgba(255, 255, 255, 0.1);
  padding: 1rem;
  border-radius: 12px;
  backdrop-filter: blur(5px);
  transition: var(--transition);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.feature-item:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateX(5px);
}

.feature-icon {
  font-size: 1.5rem;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.feature-text {
  display: flex;
  flex-direction: column;
}

.feature-text strong {
  font-size: 1.1rem;
  margin-bottom: 0.2rem;
}

.feature-text span {
  font-size: 0.9rem;
  opacity: 0.8;
}

/* Header Logo Text */
.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.header-logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

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

/* Footer AI Icon */
.ai-icon {
  display: inline-block;
  margin-left: 0.5rem;
  font-size: 1.1rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    opacity: 0.7;
    transform: scale(1);
  }

  50% {
    opacity: 1;
    transform: scale(1.2);
  }

  100% {
    opacity: 0.7;
    transform: scale(1);
  }
}