/* ========================================
   cybernetik — Design System
   Premium Dark Theme
   ======================================== */

/* --- CSS Custom Properties --- */
:root {
  --primary: hsl(250, 85%, 60%);
  --primary-light: hsl(250, 85%, 70%);
  --primary-dark: hsl(250, 85%, 45%);
  --secondary: hsl(190, 90%, 50%);
  --secondary-light: hsl(190, 90%, 60%);
  --accent: hsl(340, 85%, 60%);
  --accent-light: hsl(340, 85%, 70%);
  --bg-dark: hsl(230, 25%, 8%);
  --bg-surface: hsl(230, 20%, 12%);
  --bg-surface-light: hsl(230, 20%, 16%);
  --bg-card: hsla(230, 20%, 16%, 0.6);
  --bg-glass: hsla(230, 20%, 20%, 0.3);
  --text-primary: hsl(0, 0%, 95%);
  --text-secondary: hsl(230, 15%, 65%);
  --text-muted: hsl(230, 10%, 45%);
  --border-color: hsla(230, 20%, 30%, 0.3);
  --border-light: hsla(230, 20%, 40%, 0.2);
  --gradient-primary: linear-gradient(135deg, var(--primary), var(--secondary));
  --gradient-accent: linear-gradient(135deg, var(--accent), var(--primary));
  --gradient-hero: linear-gradient(135deg, var(--primary), var(--accent), var(--secondary));
  --shadow-sm: 0 2px 8px hsla(0, 0%, 0%, 0.2);
  --shadow-md: 0 4px 16px hsla(0, 0%, 0%, 0.3);
  --shadow-lg: 0 8px 32px hsla(0, 0%, 0%, 0.4);
  --shadow-glow: 0 0 20px hsla(250, 85%, 60%, 0.3);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  --container-max: 1200px;
  --container-padding: 2rem;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

img {
  max-width: 100%;
  display: block;
}

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
}

/* --- Layout --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  width: 100%;
}

.section {
  padding: 6rem 0;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800;
  text-align: center;
  margin-bottom: 0.75rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  color: var(--text-secondary);
  text-align: center;
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 3rem;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
  transition: background var(--transition-normal), box-shadow var(--transition-normal);
}

.nav.scrolled {
  background: hsla(230, 20%, 10%, 0.9);
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-logo {
  font-weight: 800;
  font-size: 1.5rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-transform: lowercase;
}

.nav-logo::first-letter {
  text-transform: lowercase;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  align-items: center;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition-fast);
  position: relative;
  padding: 0.25rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 1px;
  transition: width var(--transition-normal);
}

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

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

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

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

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

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

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -1px;
}

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

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2rem;
  line-height: 1.7;
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
  padding: 0.75rem 2rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  line-height: 1.4;
}

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

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

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

.btn-secondary {
  background: var(--bg-surface-light);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--primary);
  background: hsla(250, 85%, 60%, 0.1);
}

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

.btn-outline:hover {
  background: var(--primary);
  color: white;
}

.btn-sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
}

/* --- Service Cards --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.card:hover {
  transform: translateY(-8px);
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
}

.card-image {
  height: 200px;
  overflow: hidden;
  position: relative;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.card:hover .card-image img {
  transform: scale(1.05);
}

.card-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--gradient-accent);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.card-content {
  padding: 1.5rem;
}

.card-category {
  color: var(--secondary);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.card-description {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1rem;
}

.card-price {
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
}

.card-features {
  list-style: none;
  padding: 0;
  margin-bottom: 1.5rem;
}

.card-features li {
  padding: 0.3rem 0;
  color: var(--text-secondary);
  font-size: 0.85rem;
  padding-left: 1.5rem;
  position: relative;
}

.card-features li::before {
  content: '✓';
  color: var(--secondary);
  position: absolute;
  left: 0;
  font-weight: 700;
}

.card-actions {
  display: flex;
  gap: 0.75rem;
}

/* --- Feature Cards --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--border-color);
  text-align: center;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
}

.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 1.5rem;
  color: white;
}

.feature-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.feature-text {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* --- Testimonials --- */
.testimonials-slider {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
}

.testimonial-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--border-color);
  position: relative;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all var(--transition-normal);
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  font-size: 4rem;
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.3;
  line-height: 1;
}

.testimonial-card:hover {
  border-color: var(--primary-dark);
}

.testimonial-text {
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.8;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.testimonial-author {
  font-weight: 700;
  color: var(--text-primary);
}

.testimonial-role {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* --- CTA Section --- */
.cta-section {
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  padding: 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  margin: 2rem 0;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 50%, hsla(0, 0%, 100%, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

.cta-title {
  font-size: 2rem;
  font-weight: 800;
  color: white;
  margin-bottom: 1rem;
  position: relative;
}

.cta-text {
  color: hsla(0, 0%, 100%, 0.85);
  margin-bottom: 2rem;
  font-size: 1.1rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
}

.cta-section .btn {
  position: relative;
}

/* --- Footer --- */
.footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-column {
  display: flex;
  flex-direction: column;
}

.footer-title {
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
  font-size: 1.05rem;
}

.footer-links {
  list-style: none;
  padding: 0;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.3rem 0;
  display: block;
  transition: color var(--transition-fast);
  font-size: 0.95rem;
}

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

.footer-text {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* --- Forms --- */
.contact-form {
  max-width: 700px;
  margin: 0 auto;
}

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

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.9rem;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.875rem 1rem;
  background: var(--bg-surface-light);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px hsla(250, 85%, 60%, 0.15);
}

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

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239090a7' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* --- Filter Bar --- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 0.9rem;
  font-family: inherit;
}

.filter-btn:hover {
  border-color: var(--primary);
  color: var(--text-primary);
}

.filter-btn.active {
  background: var(--gradient-primary);
  color: white;
  border-color: transparent;
}

/* --- Stats --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 2rem;
}

.stat-item {
  text-align: center;
  padding: 2rem;
}

.stat-number {
  font-size: 3rem;
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.stat-label {
  color: var(--text-secondary);
  margin-top: 0.5rem;
  font-size: 0.95rem;
}

/* --- Team --- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 2rem;
}

.team-card {
  text-align: center;
  padding: 2rem;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.team-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
}

.team-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  margin: 0 auto 1rem;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: white;
  font-weight: 700;
}

.team-name {
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.team-role {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* --- Page Header --- */
.page-header {
  padding: 8rem 0 4rem;
  text-align: center;
  background: var(--bg-surface);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -25%;
  width: 150%;
  height: 200%;
  background: radial-gradient(ellipse at center, hsla(250, 85%, 60%, 0.05) 0%, transparent 60%);
  pointer-events: none;
}

.page-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  position: relative;
}

.page-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  position: relative;
}

/* --- Service Detail --- */
.service-detail {
  padding: 2rem 0;
}

.service-detail-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
  margin-bottom: 3rem;
}

.service-detail-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--border-color);
}

.service-detail-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.service-detail-info {
  padding: 1rem 0;
}

/* --- Toast Notifications --- */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  color: white;
  font-weight: 500;
  z-index: 10000;
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-lg);
  font-size: 0.95rem;
  max-width: 400px;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast-success {
  background: hsl(150, 80%, 35%);
}

.toast-error {
  background: hsl(0, 80%, 45%);
}

/* --- Glass Utility --- */
.glass {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-light);
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--bg-surface-light);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ========================================
   Responsive — Tablet (max-width: 768px)
   ======================================== */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: hsla(230, 25%, 8%, 0.97);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    z-index: 999;
    padding: 2rem;
  }

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

  .nav-links .nav-link {
    font-size: 1.25rem;
  }

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

  .hero-title {
    font-size: clamp(2rem, 5vw, 3rem);
  }

  .hero-subtitle {
    font-size: 1.05rem;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .testimonials-slider {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .service-detail-header {
    grid-template-columns: 1fr;
  }

  .cta-section {
    padding: 3rem 1.5rem;
  }

  .section {
    padding: 4rem 0;
  }

  .page-header {
    padding: 6rem 0 3rem;
  }

  .page-title {
    font-size: 2rem;
  }
}

/* ========================================
   Responsive — Mobile (max-width: 480px)
   ======================================== */
@media (max-width: 480px) {
  :root {
    --container-padding: 1rem;
  }

  .section {
    padding: 3rem 0;
  }

  .hero-title {
    font-size: 1.75rem;
  }

  .hero-subtitle {
    font-size: 0.95rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .section-subtitle {
    font-size: 0.95rem;
  }

  .btn {
    padding: 0.625rem 1.5rem;
    font-size: 0.9rem;
  }

  .btn-lg {
    padding: 0.75rem 2rem;
    font-size: 1rem;
  }

  .card-content {
    padding: 1.25rem;
  }

  .cta-section {
    padding: 2.5rem 1.25rem;
    border-radius: var(--radius-lg);
  }

  .cta-title {
    font-size: 1.5rem;
  }

  .stat-number {
    font-size: 2.25rem;
  }

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

  .team-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .page-header {
    padding: 5rem 0 2rem;
  }

  .page-title {
    font-size: 1.5rem;
  }

  .filter-bar {
    gap: 0.5rem;
  }

  .filter-btn {
    padding: 0.4rem 1rem;
    font-size: 0.8rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
}

/* ========================================
   Vibrant Modern Theme Layer
   Brighter color, depth, glass, and motion polish
   ======================================== */
:root {
  --primary: hsl(258, 92%, 64%);
  --primary-light: hsl(258, 95%, 74%);
  --primary-dark: hsl(258, 84%, 48%);
  --secondary: hsl(187, 96%, 50%);
  --secondary-light: hsl(176, 94%, 57%);
  --accent: hsl(326, 90%, 62%);
  --accent-light: hsl(20, 96%, 62%);
  --lime: hsl(84, 88%, 58%);
  --amber: hsl(42, 96%, 58%);
  --bg-dark: hsl(232, 36%, 7%);
  --bg-surface: hsl(234, 30%, 12%);
  --bg-surface-light: hsl(234, 28%, 17%);
  --bg-card: hsla(234, 30%, 16%, 0.74);
  --bg-glass: hsla(234, 38%, 14%, 0.58);
  --border-color: hsla(210, 90%, 78%, 0.16);
  --border-light: hsla(190, 96%, 64%, 0.20);
  --gradient-primary: linear-gradient(135deg, var(--primary), var(--secondary));
  --gradient-accent: linear-gradient(135deg, var(--accent), var(--accent-light), var(--amber));
  --gradient-hero: linear-gradient(115deg, #ffffff 0%, #8d6cff 24%, #ff4fb7 49%, #15d8ff 74%, #99f24f 100%);
  --shadow-glow: 0 0 34px hsla(258, 92%, 64%, 0.36), 0 0 70px hsla(187, 96%, 50%, 0.14);
}

body {
  background:
    radial-gradient(circle at 10% 12%, hsla(258, 92%, 64%, 0.18), transparent 28rem),
    radial-gradient(circle at 86% 18%, hsla(187, 96%, 50%, 0.16), transparent 30rem),
    radial-gradient(circle at 65% 92%, hsla(326, 90%, 62%, 0.14), transparent 28rem),
    linear-gradient(180deg, hsl(232, 36%, 7%), hsl(237, 38%, 8%) 45%, hsl(226, 34%, 7%));
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(hsla(190, 96%, 60%, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, hsla(258, 92%, 64%, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at center, black, transparent 78%);
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(115deg, transparent 0 42%, hsla(187, 96%, 50%, 0.05) 42% 44%, transparent 44% 100%),
    linear-gradient(68deg, transparent 0 66%, hsla(326, 90%, 62%, 0.05) 66% 68%, transparent 68% 100%);
}

.nav {
  background: hsla(232, 36%, 7%, 0.72);
  box-shadow: 0 18px 55px hsla(0, 0%, 0%, 0.22);
}

.nav-logo,
.section-title,
.card-price,
.stat-number {
  background-size: 220% 220%;
  animation: gradientShift 8s ease infinite;
}

.nav-link.btn,
.btn {
  border-radius: 999px;
}

.nav-link.btn-primary,
.btn-primary {
  background: linear-gradient(135deg, #6f5cff, #00d5ff 48%, #2df5b6);
  box-shadow: 0 12px 30px hsla(187, 96%, 50%, 0.25);
}

.btn-primary:hover {
  box-shadow: 0 16px 45px hsla(187, 96%, 50%, 0.30), 0 0 34px hsla(258, 92%, 64%, 0.34);
}

.btn-outline {
  border-color: hsla(187, 96%, 50%, 0.62);
  color: hsl(187, 96%, 68%);
  background: hsla(187, 96%, 50%, 0.06);
  box-shadow: inset 0 0 0 1px hsla(258, 92%, 64%, 0.16);
}

.btn-outline:hover {
  background: linear-gradient(135deg, hsla(258, 92%, 64%, 0.95), hsla(326, 90%, 62%, 0.95));
  border-color: transparent;
}

.hero {
  isolation: isolate;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 9rem max(2rem, 10vw) auto;
  height: 24rem;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(circle at 20% 20%, hsla(258, 92%, 64%, 0.26), transparent 16rem),
    radial-gradient(circle at 78% 28%, hsla(187, 96%, 50%, 0.22), transparent 15rem),
    radial-gradient(circle at 50% 90%, hsla(326, 90%, 62%, 0.18), transparent 14rem);
  filter: blur(16px);
}

.hero-content {
  max-width: 920px;
}

.hero-title {
  font-size: clamp(3rem, 7vw, 6.6rem);
  line-height: 0.98;
  text-wrap: balance;
  text-shadow: 0 0 42px hsla(258, 92%, 64%, 0.18);
}

.gradient-text {
  background-size: 260% 260%;
  animation: gradientShift 7s ease infinite;
}

.hero-subtitle,
.page-subtitle {
  color: hsl(226, 22%, 76%);
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.section {
  position: relative;
}

.section:nth-of-type(even)::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, hsla(187, 96%, 50%, 0.045), transparent);
}

.services-grid,
.features-grid,
.testimonials-slider,
.team-grid {
  align-items: stretch;
}

.card,
.feature-card,
.testimonial-card,
.team-card,
.contact-card,
.contact-form-wrapper,
.stat-item {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(145deg, hsla(234, 30%, 17%, 0.92), hsla(236, 34%, 10%, 0.88));
  border-color: hsla(190, 96%, 68%, 0.18);
  box-shadow: 0 20px 70px hsla(0, 0%, 0%, 0.20);
}

.card::before,
.feature-card::before,
.testimonial-card::before,
.team-card::before,
.contact-card::before,
.contact-form-wrapper::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, hsla(187, 96%, 60%, 0.62), hsla(258, 92%, 64%, 0.18), hsla(326, 90%, 62%, 0.50));
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
}

.card::after,
.feature-card::after,
.testimonial-card::after,
.team-card::after {
  content: '';
  position: absolute;
  width: 11rem;
  height: 11rem;
  right: -4rem;
  top: -4rem;
  pointer-events: none;
  background: radial-gradient(circle, hsla(187, 96%, 50%, 0.16), transparent 70%);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.card:hover,
.feature-card:hover,
.testimonial-card:hover,
.team-card:hover {
  transform: translateY(-10px);
  border-color: hsla(187, 96%, 60%, 0.42);
  box-shadow: 0 26px 80px hsla(0, 0%, 0%, 0.28), var(--shadow-glow);
}

.card:hover::after,
.feature-card:hover::after,
.testimonial-card:hover::after,
.team-card:hover::after {
  transform: scale(1.25);
}

.card-image {
  background: linear-gradient(135deg, hsla(258, 92%, 64%, 0.26), hsla(187, 96%, 50%, 0.18));
}

.card-badge,
.filter-btn.active {
  background: linear-gradient(135deg, #ff4fb7, #ff8a3d, #ffe45c);
  box-shadow: 0 10px 28px hsla(326, 90%, 62%, 0.25);
}

.card-category {
  color: hsl(176, 94%, 64%);
}

.card-features li {
  background: hsla(190, 96%, 50%, 0.045);
  border-radius: 999px;
  padding: 0.36rem 0.75rem 0.36rem 1.75rem;
  margin: 0.35rem 0;
}

.card-features li::before {
  left: 0.72rem;
  color: var(--lime);
}

.feature-icon,
.team-avatar {
  background: linear-gradient(135deg, #6f5cff, #00d5ff 48%, #ff4fb7);
  box-shadow: 0 16px 36px hsla(258, 92%, 64%, 0.30);
}

.cta-section {
  background:
    radial-gradient(circle at 20% 30%, hsla(255, 100%, 78%, 0.35), transparent 15rem),
    radial-gradient(circle at 82% 30%, hsla(187, 96%, 50%, 0.32), transparent 15rem),
    linear-gradient(135deg, #6f5cff 0%, #ff4fb7 44%, #ff8a3d 100%);
  box-shadow: 0 26px 90px hsla(326, 90%, 62%, 0.22);
}

.page-header {
  background:
    radial-gradient(circle at 20% 0%, hsla(258, 92%, 64%, 0.22), transparent 28rem),
    radial-gradient(circle at 80% 20%, hsla(187, 96%, 50%, 0.18), transparent 28rem),
    linear-gradient(180deg, hsl(234, 30%, 12%), hsl(232, 36%, 7%));
}

.page-title {
  font-size: clamp(2.5rem, 5vw, 4.6rem);
  letter-spacing: -0.04em;
}

.filter-btn {
  background: hsla(234, 30%, 16%, 0.7);
}

.form-input,
.form-textarea,
.form-select {
  background: hsla(234, 30%, 14%, 0.86);
  border-color: hsla(190, 96%, 68%, 0.18);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  box-shadow: 0 0 0 4px hsla(187, 96%, 50%, 0.14), 0 0 32px hsla(258, 92%, 64%, 0.14);
}

.footer {
  background:
    radial-gradient(circle at 20% 20%, hsla(258, 92%, 64%, 0.10), transparent 24rem),
    hsl(234, 30%, 10%);
}

/* --- Services Carousel --- */
.services-carousel {
  width: min(100vw, 1600px);
  margin: 0 calc(50% - min(50vw, 800px));
  overflow: hidden;
}

.services-carousel-viewport {
  position: relative;
  overflow: hidden;
  padding: 1.5rem 0 2rem;
  mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
}

.services-carousel-viewport::before,
.services-carousel-viewport::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  z-index: 3;
  width: min(8vw, 7rem);
  pointer-events: none;
}

.services-carousel-viewport::before {
  left: 0;
  background: linear-gradient(90deg, var(--bg-surface), transparent);
}

.services-carousel-viewport::after {
  right: 0;
  background: linear-gradient(270deg, var(--bg-surface), transparent);
}

.services-carousel-track {
  display: flex;
  align-items: stretch;
  gap: 1.5rem;
  width: max-content;
  animation: servicesMarquee 38s linear infinite;
  will-change: transform;
}

.services-carousel:hover .services-carousel-track {
  animation-play-state: paused;
}

.carousel-card {
  width: min(360px, 82vw);
  flex: 0 0 auto;
  opacity: 1;
  transform: none;
}

.carousel-card .card-content {
  min-height: 380px;
  display: flex;
  flex-direction: column;
}

.carousel-card .card-description {
  flex: 1;
}

.carousel-card .card-actions {
  margin-top: auto;
}

@keyframes servicesMarquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(calc(-50% - 0.75rem));
  }
}

@media (max-width: 768px) {
  .services-carousel {
    width: 100vw;
    margin: 0 calc(50% - 50vw);
  }

  .services-carousel-track {
    gap: 1rem;
    animation-duration: 32s;
  }
}

@media (prefers-reduced-motion: reduce) {
  .services-carousel-track {
    animation: none;
    transform: none;
  }

  .services-carousel-viewport {
    overflow-x: auto;
    mask-image: none;
    -webkit-mask-image: none;
  }
}

/* --- Contact Page Polish --- */
body[data-page="contact"] .page-header {
  padding-bottom: 5rem;
}

body[data-page="contact"] .section {
  padding-top: 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 1.5rem;
  align-items: stretch;
  margin-top: -3rem;
}

.contact-form-wrapper {
  border-radius: 28px;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  border: 1px solid hsla(187, 96%, 60%, 0.22);
  min-height: 100%;
}

.contact-kicker {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  padding: 0.35rem 0.8rem;
  border: 1px solid hsla(187, 96%, 60%, 0.26);
  border-radius: 999px;
  color: hsl(176, 94%, 68%);
  background: hsla(187, 96%, 50%, 0.08);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-form-wrapper h2,
.contact-intro h2 {
  margin-bottom: 0.65rem;
  color: var(--text-primary);
  font-size: clamp(1.6rem, 3vw, 2.35rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.contact-form-note,
.contact-intro p {
  color: var(--text-secondary);
  max-width: 56ch;
  margin-bottom: 1.5rem;
}

.contact-form {
  max-width: none;
}

.contact-form .btn {
  width: 100%;
  justify-content: center;
  min-height: 52px;
}

.contact-info {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.contact-intro,
.contact-card {
  border-radius: 22px;
  border: 1px solid hsla(187, 96%, 60%, 0.18);
  background:
    linear-gradient(145deg, hsla(234, 30%, 17%, 0.92), hsla(236, 34%, 10%, 0.88));
  box-shadow: 0 20px 70px hsla(0, 0%, 0%, 0.18);
}

.contact-intro {
  padding: 1.5rem;
}

.contact-card {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 1rem;
  align-items: center;
  padding: 1.1rem 1.25rem;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.contact-card:hover {
  transform: translateY(-4px);
  border-color: hsla(187, 96%, 60%, 0.42);
  box-shadow: 0 22px 70px hsla(187, 96%, 50%, 0.12);
}

.contact-card-icon {
  grid-row: span 2;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(135deg, #6f5cff, #00d5ff 50%, #2df5b6);
  box-shadow: 0 12px 28px hsla(187, 96%, 50%, 0.20);
  font-size: 1.2rem;
}

.contact-card-title {
  color: var(--text-primary);
  font-size: 0.95rem;
  line-height: 1.2;
}

.contact-card-text {
  color: hsl(226, 22%, 76%);
  font-weight: 600;
  overflow-wrap: anywhere;
}

@media (max-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .contact-form-wrapper,
  .contact-intro,
  .contact-card {
    border-radius: 18px;
  }

  .contact-card {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .contact-card-icon {
    margin: 0 auto 0.75rem;
  }
}