@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 {
  --spark-violet: #8B2FE8;
  --spark-violet-dark: #5B1A9E;
  --spark-orange: #FF6B00;
  --spark-orange-light: #FF9142;
  --spark-cyan: #00E5FF;
  --deep-space: #0D0221;
  --deep-space-light: #1A0B3D;
  --surface-dark: #170833;
  --surface-light: #F7F4FF;
  --text-light: #F0EBFF;
  --text-muted: #B8A9DB;
  --border-glow: rgba(139, 47, 232, 0.4);
  --shadow-spark: 0 4px 24px rgba(139, 47, 232, 0.25);
  --shadow-orange: 0 4px 20px rgba(255, 107, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background-color: var(--surface-light);
  color: #1a1226;
  overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--deep-space);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--spark-violet), var(--spark-orange));
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--spark-cyan);
}

/* Sticky Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--deep-space);
  border-bottom: 2px solid var(--spark-violet);
  box-shadow: 0 2px 20px rgba(139, 47, 232, 0.3);
  transition: all 0.3s ease;
}

.site-header .logo-text {
  background: linear-gradient(135deg, var(--spark-orange), var(--spark-violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
}

.nav-link {
  position: relative;
  color: var(--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(--spark-orange), var(--spark-cyan));
  transition: width 0.3s ease;
}

.nav-link:hover {
  color: var(--spark-orange-light);
}

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

.nav-link.active {
  color: var(--spark-cyan);
}

/* Mobile Menu */
.mobile-menu {
  background-color: var(--deep-space-light);
  border-top: 1px solid var(--spark-violet);
}

.mobile-menu-toggle {
  color: var(--text-light);
  font-size: 1.75rem;
  cursor: pointer;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--spark-orange), #FF3D00);
  color: #fff;
  font-weight: 700;
  padding: 0.85rem 2rem;
  border-radius: 8px;
  box-shadow: var(--shadow-orange);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 30px rgba(255, 107, 0, 0.5);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--spark-cyan);
  font-weight: 700;
  padding: 0.8rem 1.9rem;
  border-radius: 8px;
  border: 2px solid var(--spark-cyan);
  transition: all 0.25s ease;
  cursor: pointer;
}

.btn-secondary:hover {
  background: var(--spark-cyan);
  color: var(--deep-space);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.5);
}

.btn-violet {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--spark-violet), var(--spark-violet-dark));
  color: #fff;
  font-weight: 700;
  padding: 0.85rem 2rem;
  border-radius: 8px;
  box-shadow: var(--shadow-spark);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  border: none;
  cursor: pointer;
}

.btn-violet:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(139, 47, 232, 0.5);
}

/* Forms */
.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.85rem 1.1rem;
  border: 2px solid #E0D6F5;
  border-radius: 8px;
  background-color: #fff;
  color: #1a1226;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--spark-violet);
  box-shadow: 0 0 0 4px rgba(139, 47, 232, 0.15);
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: #2c1a4d;
}

.form-card {
  background: #fff;
  border-radius: 16px;
  padding: 2.5rem;
  box-shadow: 0 10px 40px rgba(139, 47, 232, 0.12);
  border: 1px solid #EFE7FB;
  position: relative;
  overflow: hidden;
}

.form-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--spark-orange), var(--spark-violet), var(--spark-cyan));
}

/* Cards */
.tech-card {
  background: #fff;
  border-radius: 14px;
  padding: 2rem;
  border: 1px solid #EDE4FB;
  box-shadow: 0 6px 20px rgba(139, 47, 232, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.tech-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 40px rgba(139, 47, 232, 0.2);
  border-color: var(--spark-violet);
}

.tech-card .icon-badge {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--spark-violet), var(--spark-orange));
  color: #fff;
  font-size: 1.6rem;
  margin-bottom: 1.25rem;
}

.dark-card {
  background: var(--surface-dark);
  border-radius: 14px;
  padding: 2rem;
  border: 1px solid rgba(139, 47, 232, 0.3);
  color: var(--text-light);
}

.dark-card p {
  color: var(--text-muted);
}

/* Accordion */
.accordion-header {
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 1.5rem;
  background: #fff;
  border: 1px solid #EDE4FB;
  border-radius: 10px;
  font-weight: 600;
  color: #2c1a4d;
  transition: background 0.25s ease;
}

.accordion-header:hover {
  background: #FAF7FF;
}

.accordion-header.active {
  border-color: var(--spark-violet);
  color: var(--spark-violet);
}

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

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

.accordion-content {
  display: none;
  padding: 1.2rem 1.5rem;
  background: #FAF7FF;
  border-radius: 0 0 10px 10px;
  color: #453563;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2000;
  background-color: var(--deep-space);
  border-top: 3px solid var(--spark-orange);
  box-shadow: 0 -4px 30px rgba(0, 0, 0, 0.4);
  padding: 1.25rem;
}

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

.cookie-banner p {
  color: var(--text-muted);
}

.cookie-banner a {
  color: var(--spark-cyan);
  text-decoration: underline;
}

.cookie-banner .btn-accept {
  background: linear-gradient(135deg, var(--spark-orange), #FF3D00);
  color: #fff;
  font-weight: 700;
  padding: 0.6rem 1.6rem;
  border-radius: 8px;
  transition: transform 0.2s ease;
}

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

/* Hero / Section Backgrounds */
.hero-gradient {
  background: radial-gradient(circle at top left, var(--deep-space-light), var(--deep-space) 70%);
  position: relative;
  overflow: hidden;
}

.hero-gradient::before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 107, 0, 0.25), transparent 70%);
  top: -100px;
  right: -100px;
  border-radius: 50%;
}

.hero-gradient::after {
  content: '';
  position: absolute;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.15), transparent 70%);
  bottom: -80px;
  left: -80px;
  border-radius: 50%;
}

.spark-divider {
  height: 4px;
  background: linear-gradient(90deg, var(--spark-orange), var(--spark-violet), var(--spark-cyan));
  border-radius: 4px;
}

/* Loading Spinner */
.spinner {
  width: 44px;
  height: 44px;
  border: 4px solid #EDE4FB;
  border-top-color: var(--spark-violet);
  border-right-color: var(--spark-orange);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

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

/* Fade & Slide Animations */
.fade-in {
  animation: fadeIn 0.6s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

.pulse-glow {
  animation: pulseGlow 2.4s ease-in-out infinite;
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 107, 0, 0.4); }
  50% { box-shadow: 0 0 0 12px rgba(255, 107, 0, 0); }
}

/* Badges */
.badge-popular {
  background: linear-gradient(135deg, var(--spark-orange), var(--spark-violet));
  color: #fff;
  font-weight: 700;
  font-size: 0.75rem;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

/* Stats */
.stat-number {
  background: linear-gradient(135deg, var(--spark-orange), var(--spark-violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
  font-size: 2.75rem;
}

/* Timeline */
.timeline-item {
  position: relative;
  padding-left: 2.5rem;
  border-left: 3px solid #EDE4FB;
  padding-bottom: 2.5rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -10px;
  top: 0;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--spark-orange), var(--spark-violet));
  box-shadow: 0 0 0 4px #fff, 0 0 0 6px var(--spark-violet);
}

/* Footer */
.site-footer {
  background-color: var(--deep-space);
  color: var(--text-muted);
}

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

.site-footer a {
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.site-footer a:hover {
  color: var(--spark-orange-light);
}

.social-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(139, 47, 232, 0.15);
  color: var(--text-light);
  transition: background 0.25s ease, transform 0.25s ease;
}

.social-icon:hover {
  background: var(--spark-orange);
  transform: translateY(-4px);
  color: #fff;
}

/* Utility */
.text-gradient {
  background: linear-gradient(135deg, var(--spark-orange), var(--spark-violet), var(--spark-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--spark-orange);
}

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