@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 {
  --corvexa-primary: #6C2BD9;
  --corvexa-primary-dark: #4C1D95;
  --corvexa-secondary: #12B8C4;
  --corvexa-accent: #FF3EA5;
  --corvexa-deep: #0B0E1F;
  --corvexa-deep-alt: #121630;
  --corvexa-surface: #171B3A;
  --corvexa-light: #F4F2FF;
  --corvexa-gray: #8B8FB3;
  --corvexa-border: #2A2F5C;
  --gradient-main: linear-gradient(135deg, var(--corvexa-primary) 0%, var(--corvexa-secondary) 100%);
  --gradient-accent: linear-gradient(135deg, var(--corvexa-accent) 0%, var(--corvexa-primary) 100%);
  --shadow-glow: 0 0 30px rgba(108, 43, 217, 0.35);
  --shadow-glow-cyan: 0 0 30px rgba(18, 184, 196, 0.3);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background-color: #ffffff;
  color: #1a1a2e;
  overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--corvexa-deep);
}
::-webkit-scrollbar-thumb {
  background: var(--gradient-main);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--corvexa-accent);
}

/* Sticky Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background-color: #0B0E1F;
  border-bottom: 1px solid var(--corvexa-border);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  transition: all 0.3s ease;
}

.site-header .logo-text {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.nav-link {
  position: relative;
  color: #C9CCE8;
  font-weight: 500;
  transition: color 0.25s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: var(--gradient-main);
  transition: width 0.3s ease;
}

.nav-link:hover {
  color: #ffffff;
}

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

.nav-link.active {
  color: #ffffff;
}

/* Mobile Menu */
.mobile-menu {
  background-color: #0B0E1F;
  border-top: 1px solid var(--corvexa-border);
}

.mobile-menu a {
  color: #C9CCE8;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mobile-menu a:hover {
  color: #ffffff;
  background-color: rgba(108, 43, 217, 0.15);
}

.mobile-menu-toggle {
  color: #ffffff;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gradient-main);
  color: #ffffff;
  font-weight: 600;
  padding: 0.85rem 2rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-glow);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 40px rgba(108, 43, 217, 0.5);
  color: #ffffff;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--corvexa-secondary);
  font-weight: 600;
  padding: 0.8rem 1.9rem;
  border-radius: 8px;
  border: 2px solid var(--corvexa-secondary);
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-secondary:hover {
  background: var(--corvexa-secondary);
  color: #0B0E1F;
  box-shadow: var(--shadow-glow-cyan);
}

.btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gradient-accent);
  color: #ffffff;
  font-weight: 600;
  padding: 0.85rem 2rem;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.btn-accent:hover {
  transform: scale(1.05);
  box-shadow: 0 10px 30px rgba(255, 62, 165, 0.4);
}

/* Cards */
.tech-card {
  background: #ffffff;
  border: 1px solid #E5E7F5;
  border-radius: 14px;
  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: var(--gradient-main);
  transform: scaleY(0);
  transition: transform 0.3s ease;
}

.tech-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(108, 43, 217, 0.15);
  border-color: var(--corvexa-primary);
}

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

.card-icon {
  width: 60px;
  height: 60px;
  border-radius: 12px;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 1.8rem;
  margin-bottom: 1.2rem;
  box-shadow: var(--shadow-glow);
}

/* Dark section */
.dark-section {
  background: var(--corvexa-deep);
  color: #F4F2FF;
}

.dark-section .section-subtitle {
  color: var(--corvexa-gray);
}

.dark-card {
  background: var(--corvexa-surface);
  border: 1px solid var(--corvexa-border);
  border-radius: 14px;
  padding: 2rem;
  color: #F4F2FF;
  transition: all 0.3s ease;
}

.dark-card:hover {
  border-color: var(--corvexa-secondary);
  box-shadow: var(--shadow-glow-cyan);
  transform: translateY(-6px);
}

.dark-card p {
  color: #C9CCE8;
}

/* Forms */
.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.85rem 1.1rem;
  border: 2px solid #E5E7F5;
  border-radius: 10px;
  background-color: #FAFAFF;
  color: #1a1a2e;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
  font-size: 0.95rem;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--corvexa-primary);
  box-shadow: 0 0 0 4px rgba(108, 43, 217, 0.12);
  background-color: #ffffff;
}

.form-label {
  display: block;
  font-weight: 600;
  color: #1a1a2e;
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
}

.form-group {
  margin-bottom: 1.4rem;
  position: relative;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: #9CA0C4;
}

/* Accordion */
.accordion-item {
  border: 1px solid #E5E7F5;
  border-radius: 10px;
  margin-bottom: 1rem;
  overflow: hidden;
  transition: border-color 0.25s ease;
}

.accordion-item:hover {
  border-color: var(--corvexa-primary);
}

.accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 1.5rem;
  cursor: pointer;
  background-color: #FAFAFF;
  font-weight: 600;
  color: #1a1a2e;
  transition: background-color 0.25s ease;
}

.accordion-header:hover {
  background-color: #F0EBFF;
}

.accordion-header i {
  transition: transform 0.3s ease;
  color: var(--corvexa-primary);
}

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

.accordion-content {
  display: none;
  padding: 1.2rem 1.5rem;
  background-color: #ffffff;
  color: #4a4a68;
  border-top: 1px solid #E5E7F5;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #0B0E1F;
  border-top: 2px solid var(--corvexa-primary);
  padding: 1.5rem;
  z-index: 1000;
  box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.4);
}

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

.cookie-banner p {
  color: #C9CCE8;
}

.cookie-banner a {
  color: #4FD1DB;
  text-decoration: underline;
}

.cookie-banner a:hover {
  color: #ffffff;
}

.cookie-accept-btn {
  background: var(--gradient-main);
  color: #ffffff;
  font-weight: 600;
  padding: 0.7rem 1.8rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.cookie-accept-btn:hover {
  transform: scale(1.05);
}

.cookie-decline-btn {
  background: transparent;
  color: #C9CCE8;
  border: 1px solid var(--corvexa-border);
  padding: 0.7rem 1.5rem;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.cookie-decline-btn:hover {
  border-color: #ffffff;
  color: #ffffff;
}

/* Hero */
.hero-gradient {
  background: radial-gradient(circle at top right, rgba(108, 43, 217, 0.25), transparent 60%),
              radial-gradient(circle at bottom left, rgba(18, 184, 196, 0.2), transparent 60%),
              var(--corvexa-deep);
  position: relative;
  overflow: hidden;
}

.hero-gradient::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 40px 40px;
}

.glow-text {
  text-shadow: 0 0 20px rgba(108, 43, 217, 0.6);
}

/* Badge / Pill */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(108, 43, 217, 0.15);
  border: 1px solid var(--corvexa-primary);
  color: #B794F6;
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
}

.badge-popular {
  background: var(--gradient-accent);
  color: #ffffff;
  padding: 0.35rem 1rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* Loading Spinner */
.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid #E5E7F5;
  border-top: 4px solid var(--corvexa-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Fade In Animation */
.fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

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

/* Section Divider */
.section-divider {
  height: 3px;
  width: 80px;
  background: var(--gradient-main);
  border-radius: 3px;
  margin: 0 auto 1.5rem;
}

/* Stats */
.stat-number {
  font-size: 3rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Timeline */
.timeline-item {
  position: relative;
  padding-left: 2.5rem;
  border-left: 2px solid var(--corvexa-border);
  padding-bottom: 2rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -7px;
  top: 0;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--gradient-main);
  box-shadow: var(--shadow-glow);
}

/* Footer */
.site-footer {
  background: #0B0E1F;
  color: #C9CCE8;
}

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

.site-footer a {
  color: #C9CCE8;
  transition: color 0.2s ease;
}

.site-footer a:hover {
  color: #4FD1DB;
}

.footer-social-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--corvexa-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #C9CCE8;
  transition: all 0.25s ease;
}

.footer-social-icon:hover {
  background: var(--gradient-main);
  color: #ffffff;
  transform: translateY(-4px);
}

/* Utility */
.text-gradient {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.border-gradient {
  border: 2px solid transparent;
  background-image: linear-gradient(#fff, #fff), var(--gradient-main);
  background-origin: border-box;
  background-clip: padding-box, border-box;
}

@media (max-width: 768px) {
  .stat-number {
    font-size: 2rem;
  }
  .tech-card {
    padding: 1.5rem;
  }
}