@import url('https://cdn.jsdelivr.net/npm/tailwindcss@2.2.19/dist/tailwind.min.css');
@import url('https://cdn.jsdelivr.net/npm/remixicon@2.5.0/fonts/remixicon.css');

:root {
  --bk-void: #0b0e1a;
  --bk-surface: #12162a;
  --bk-surface-alt: #1a1f3a;
  --bk-primary: #7c3aed;
  --bk-primary-light: #a78bfa;
  --bk-secondary: #06b6d4;
  --bk-secondary-light: #67e8f9;
  --bk-accent: #f472b6;
  --bk-accent-alt: #fbbf24;
  --bk-text-light: #e5e7eb;
  --bk-text-muted: #9ca3af;
  --bk-border: rgba(124, 58, 237, 0.25);
  --bk-glow: 0 0 20px rgba(124, 58, 237, 0.35);
  --bk-glow-cyan: 0 0 20px rgba(6, 182, 212, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background-color: #ffffff;
  color: #1f2937;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bk-void);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--bk-primary), var(--bk-secondary));
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--bk-secondary), var(--bk-primary));
}

/* Sticky Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bk-void);
  border-bottom: 1px solid var(--bk-border);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
  transition: all 0.3s ease;
}

.site-header .logo-mark {
  filter: drop-shadow(0 0 8px rgba(124, 58, 237, 0.5));
}

.nav-link {
  position: relative;
  color: var(--bk-text-light);
  font-weight: 500;
  transition: color 0.25s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--bk-primary), var(--bk-secondary));
  transition: width 0.3s ease;
}

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

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

.nav-link.active {
  color: var(--bk-secondary-light);
}

/* Mobile Menu */
.mobile-menu {
  background-color: var(--bk-surface);
  border-top: 1px solid var(--bk-border);
}

.mobile-menu-toggle {
  color: var(--bk-text-light);
  font-size: 1.75rem;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.mobile-menu-toggle:hover {
  transform: rotate(90deg);
  color: var(--bk-secondary-light);
}

/* Buttons */
.btn-circuit {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: 0.5rem;
  font-weight: 600;
  background: linear-gradient(135deg, var(--bk-primary), var(--bk-secondary));
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.4);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  cursor: pointer;
}

.btn-circuit:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(6, 182, 212, 0.5);
}

.btn-outline-circuit {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.9rem;
  border-radius: 0.5rem;
  font-weight: 600;
  background: transparent;
  color: var(--bk-primary);
  border: 2px solid var(--bk-primary);
  transition: all 0.25s ease;
  cursor: pointer;
}

.btn-outline-circuit:hover {
  background: var(--bk-primary);
  color: #ffffff;
  box-shadow: var(--bk-glow);
}

.btn-dark-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.9rem;
  border-radius: 0.5rem;
  font-weight: 600;
  background: transparent;
  color: var(--bk-secondary-light);
  border: 2px solid var(--bk-secondary);
  transition: all 0.25s ease;
  cursor: pointer;
}

.btn-dark-outline:hover {
  background: var(--bk-secondary);
  color: var(--bk-void);
}

/* Cards */
.tech-card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 0.75rem;
  padding: 2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  position: relative;
  overflow: hidden;
}

.tech-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--bk-primary), var(--bk-secondary));
  transform: scaleY(0);
  transition: transform 0.3s ease;
  transform-origin: top;
}

.tech-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(124, 58, 237, 0.15);
  border-color: var(--bk-primary-light);
}

.tech-card:hover::before {
  transform: scaleY(1);
}

.tech-card-dark {
  background: var(--bk-surface);
  border: 1px solid var(--bk-border);
  border-radius: 0.75rem;
  padding: 2rem;
  color: var(--bk-text-light);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.tech-card-dark:hover {
  transform: translateY(-6px);
  box-shadow: var(--bk-glow);
}

/* Icon boxes */
.icon-box {
  width: 4rem;
  height: 4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.15), rgba(6, 182, 212, 0.15));
  color: var(--bk-primary);
  font-size: 1.75rem;
  transition: all 0.3s ease;
}

.tech-card:hover .icon-box {
  background: linear-gradient(135deg, var(--bk-primary), var(--bk-secondary));
  color: #ffffff;
  transform: rotate(-8deg) scale(1.05);
}

/* Accordion */
.accordion-item {
  border: 1px solid #e5e7eb;
  border-radius: 0.5rem;
  margin-bottom: 0.75rem;
  overflow: hidden;
}

.accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  background: #f9fafb;
  font-weight: 600;
  color: #1f2937;
  transition: background 0.25s ease;
}

.accordion-header:hover {
  background: #f3f4f6;
}

.accordion-header.active {
  background: linear-gradient(135deg, var(--bk-primary), var(--bk-secondary));
  color: #ffffff;
}

.accordion-header i {
  transition: transform 0.3s ease;
}

.accordion-header.active i {
  transform: rotate(180deg);
}

.accordion-content {
  display: none;
  padding: 1.25rem 1.5rem;
  background: #ffffff;
  color: #374151;
  border-top: 1px solid #e5e7eb;
}

/* Forms */
.form-input {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 2px solid #e5e7eb;
  border-radius: 0.5rem;
  background: #ffffff;
  color: #1f2937;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--bk-primary);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
}

.form-label {
  display: block;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
}

.form-card {
  background: #ffffff;
  border-radius: 1rem;
  padding: 2.5rem;
  box-shadow: 0 10px 50px rgba(124, 58, 237, 0.12);
  border: 1px solid rgba(124, 58, 237, 0.1);
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--bk-void);
  border-top: 2px solid var(--bk-primary);
  padding: 1.25rem 1.5rem;
  box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.5);
}

.cookie-banner h3,
.cookie-banner .cookie-title {
  color: #ffffff;
}

.cookie-banner p,
.cookie-banner .cookie-text {
  color: #d1d5db;
}

.cookie-banner a {
  color: var(--bk-secondary-light);
  text-decoration: underline;
}

.cookie-banner a:hover {
  color: var(--bk-accent);
}

/* Hero / gradient section */
.hero-circuit {
  background: linear-gradient(135deg, var(--bk-void) 0%, var(--bk-surface-alt) 50%, var(--bk-void) 100%);
  position: relative;
  overflow: hidden;
}

.hero-circuit::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 60%;
  height: 200%;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-circuit::after {
  content: '';
  position: absolute;
  bottom: -40%;
  left: -10%;
  width: 50%;
  height: 150%;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

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

/* Section badge */
.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: 2rem;
  background: rgba(124, 58, 237, 0.1);
  color: var(--bk-primary);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid rgba(124, 58, 237, 0.25);
}

/* Loading Spinner */
.spinner {
  width: 3rem;
  height: 3rem;
  border: 4px solid rgba(124, 58, 237, 0.15);
  border-top-color: var(--bk-primary);
  border-radius: 50%;
  animation: spin-circuit 0.9s linear infinite;
}

@keyframes spin-circuit {
  to { transform: rotate(360deg); }
}

/* Fade / slide animations */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 0 rgba(124, 58, 237, 0); }
  50% { box-shadow: 0 0 25px rgba(124, 58, 237, 0.4); }
}

.pulse-glow {
  animation: pulseGlow 2.5s ease-in-out infinite;
}

/* Pricing cards */
.price-card {
  background: #ffffff;
  border: 2px solid #e5e7eb;
  border-radius: 1rem;
  padding: 2.5rem 2rem;
  cursor: default;
}

.price-card-featured {
  background: var(--bk-surface);
  border: 2px solid var(--bk-primary);
  border-radius: 1rem;
  padding: 2.5rem 2rem;
  color: var(--bk-text-light);
  box-shadow: var(--bk-glow);
  cursor: default;
}

.price-card-featured h3,
.price-card-featured h4 {
  color: #ffffff;
}

.price-card-featured p,
.price-card-featured li {
  color: var(--bk-text-muted);
}

.badge-popular {
  display: inline-block;
  padding: 0.3rem 1rem;
  border-radius: 2rem;
  background: linear-gradient(135deg, var(--bk-accent), var(--bk-accent-alt));
  color: #1f2937;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

/* Footer */
.site-footer {
  background: var(--bk-void);
  color: var(--bk-text-muted);
  border-top: 1px solid var(--bk-border);
}

.site-footer h3,
.site-footer h4 {
  color: #ffffff;
}

.site-footer a {
  color: var(--bk-text-muted);
  transition: color 0.25s ease;
}

.site-footer a:hover {
  color: var(--bk-secondary-light);
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--bk-surface);
  color: var(--bk-text-light);
  transition: all 0.25s ease;
}

.social-icon:hover {
  background: linear-gradient(135deg, var(--bk-primary), var(--bk-secondary));
  color: #ffffff;
  transform: translateY(-3px);
}

/* Divider */
.divider-circuit {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--bk-primary), var(--bk-secondary), transparent);
}

/* Utility text-selection */
::selection {
  background: var(--bk-primary);
  color: #ffffff;
}

@media (max-width: 768px) {
  .hero-circuit::before,
  .hero-circuit::after {
    display: none;
  }
  .form-card {
    padding: 1.5rem;
  }
}