@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 {
  --virelto-void: #0B0C1E;
  --virelto-deep: #14163A;
  --virelto-indigo: #4B3FFF;
  --virelto-violet: #8B5CF6;
  --virelto-cyan: #22D3EE;
  --virelto-lime: #C4F135;
  --virelto-mist: #A5ADCF;
  --virelto-ink: #1A1B3D;
  --virelto-cream: #F5F6FB;
  --shadow-glow: 0 0 40px rgba(139, 92, 246, 0.25);
  --shadow-soft: 0 10px 30px rgba(11, 12, 30, 0.12);
  --transition-fast: 0.2s ease;
  --transition-med: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background-color: var(--virelto-cream);
  color: var(--virelto-ink);
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--virelto-void);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--virelto-violet), var(--virelto-cyan));
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--virelto-cyan), var(--virelto-lime));
}

/* Sticky Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--virelto-void);
  border-bottom: 1px solid rgba(139, 92, 246, 0.2);
  box-shadow: 0 4px 20px rgba(11, 12, 30, 0.4);
  transition: var(--transition-med);
}

.site-header .logo-text {
  background: linear-gradient(90deg, var(--virelto-violet), var(--virelto-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.nav-link {
  position: relative;
  color: var(--virelto-mist);
  font-weight: 500;
  transition: color var(--transition-fast);
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--virelto-violet), var(--virelto-lime));
  transition: width var(--transition-med);
}
.nav-link:hover {
  color: #FFFFFF;
}
.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}
.nav-link.active {
  color: var(--virelto-lime);
}

/* Mobile menu (visibility controlled by Tailwind 'hidden' class in HTML) */
.mobile-menu {
  background-color: var(--virelto-void);
  border-top: 1px solid rgba(139, 92, 246, 0.2);
}
.mobile-menu .nav-link {
  display: block;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(139, 92, 246, 0.1);
}

.mobile-menu-toggle {
  color: #FFFFFF;
  font-size: 1.75rem;
  cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  font-weight: 600;
  border-radius: 0.5rem;
  transition: all var(--transition-med);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--virelto-indigo), var(--virelto-violet));
  color: #FFFFFF;
  box-shadow: 0 8px 24px rgba(75, 63, 255, 0.35);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(75, 63, 255, 0.5);
  background: linear-gradient(135deg, var(--virelto-violet), var(--virelto-cyan));
}

.btn-accent {
  background: var(--virelto-lime);
  color: var(--virelto-void);
  box-shadow: 0 8px 24px rgba(196, 241, 53, 0.3);
}
.btn-accent:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 32px rgba(196, 241, 53, 0.45);
}

.btn-outline {
  background: transparent;
  color: var(--virelto-violet);
  border: 2px solid var(--virelto-violet);
}
.btn-outline:hover {
  background: var(--virelto-violet);
  color: #FFFFFF;
}

.btn-outline-light {
  background: transparent;
  color: #FFFFFF;
  border: 2px solid rgba(255, 255, 255, 0.4);
}
.btn-outline-light:hover {
  background: #FFFFFF;
  color: var(--virelto-void);
  border-color: #FFFFFF;
}

/* Cards */
.tech-card {
  background: #FFFFFF;
  border: 1px solid rgba(75, 63, 255, 0.1);
  border-radius: 1rem;
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition-med), box-shadow var(--transition-med);
  cursor: default;
}
.tech-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
  border-color: rgba(139, 92, 246, 0.3);
}

.tech-card-dark {
  background: var(--virelto-deep);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 1rem;
  color: #E5E7F5;
  transition: all var(--transition-med);
}
.tech-card-dark:hover {
  border-color: var(--virelto-cyan);
  box-shadow: 0 0 30px rgba(34, 211, 238, 0.2);
}

.icon-badge {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--virelto-indigo), var(--virelto-cyan));
  color: #FFFFFF;
  font-size: 1.5rem;
}

/* Accordion */
.accordion-item {
  border: 1px solid rgba(75, 63, 255, 0.15);
  border-radius: 0.75rem;
  overflow: hidden;
  margin-bottom: 1rem;
  transition: border-color var(--transition-fast);
}
.accordion-item:hover {
  border-color: var(--virelto-violet);
}
.accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  background: #FFFFFF;
  font-weight: 600;
  color: var(--virelto-ink);
  transition: background var(--transition-fast);
}
.accordion-header:hover {
  background: rgba(139, 92, 246, 0.05);
}
.accordion-header .accordion-icon {
  transition: transform var(--transition-med);
  color: var(--virelto-violet);
}
.accordion-header.active .accordion-icon {
  transform: rotate(180deg);
}
.accordion-content {
  display: none;
  padding: 0 1.5rem 1.25rem;
  color: #4B5065;
  line-height: 1.7;
}

/* Forms */
.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.85rem 1.1rem;
  border: 2px solid #E2E5F1;
  border-radius: 0.6rem;
  background: #FFFFFF;
  color: var(--virelto-ink);
  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(--virelto-violet);
  box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.15);
}
.form-label {
  display: block;
  font-weight: 600;
  color: var(--virelto-ink);
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
}
.form-input::placeholder,
.form-textarea::placeholder {
  color: #9CA3C4;
}

/* Section styles */
.section-dark {
  background: var(--virelto-void);
  color: #E5E7F5;
}
.section-gradient {
  background: linear-gradient(135deg, var(--virelto-void) 0%, var(--virelto-deep) 50%, #1E1B4B 100%);
  color: #E5E7F5;
  position: relative;
  overflow: hidden;
}
.section-gradient::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.25), transparent 70%);
  border-radius: 50%;
}
.section-gradient::after {
  content: '';
  position: absolute;
  bottom: -15%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.15), transparent 70%);
  border-radius: 50%;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  background: rgba(139, 92, 246, 0.1);
  color: var(--virelto-violet);
  font-weight: 600;
  font-size: 0.8rem;
}

/* Loading spinner */
.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid rgba(139, 92, 246, 0.2);
  border-top-color: var(--virelto-violet);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Fade/slide animations */
.fade-in-up {
  animation: fadeInUp 0.6s ease both;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--virelto-void);
  border-top: 2px solid var(--virelto-violet);
  color: #E5E7F5;
  box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.3);
}
.cookie-banner h3,
.cookie-banner .cookie-title {
  color: #FFFFFF;
}
.cookie-banner p,
.cookie-banner .cookie-text {
  color: #C7CAE8;
}
.cookie-banner a {
  color: #7DD3FC;
  text-decoration: underline;
}
.cookie-banner a:hover {
  color: var(--virelto-lime);
}

/* Table / pricing */
.pricing-card {
  background: #FFFFFF;
  border: 1px solid #E2E5F1;
  border-radius: 1rem;
  padding: 2rem;
  cursor: default;
}
.pricing-card.featured {
  border: 2px solid var(--virelto-violet);
  box-shadow: var(--shadow-glow);
  position: relative;
}
.pricing-card .badge-featured {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--virelto-lime);
  color: var(--virelto-void);
  padding: 0.3rem 1rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
}

/* Footer */
.site-footer {
  background: var(--virelto-void);
  color: #C7CAE8;
}
.site-footer h3,
.site-footer h4 {
  color: #FFFFFF;
}
.site-footer a {
  color: #A5ADCF;
  transition: color var(--transition-fast);
}
.site-footer a:hover {
  color: var(--virelto-cyan);
}
.site-footer .social-icon {
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(139, 92, 246, 0.15);
  color: #FFFFFF;
  transition: all var(--transition-fast);
}
.site-footer .social-icon:hover {
  background: var(--virelto-violet);
  transform: translateY(-3px);
}

/* Divider */
.gradient-divider {
  height: 3px;
  background: linear-gradient(90deg, var(--virelto-indigo), var(--virelto-cyan), var(--virelto-lime));
  border: none;
  border-radius: 3px;
}

/* Utility */
.text-gradient {
  background: linear-gradient(90deg, var(--virelto-violet), var(--virelto-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

@media (max-width: 768px) {
  .section-gradient::before,
  .section-gradient::after {
    display: none;
  }
}