@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 {
  --velnor-void: #0A0E27;
  --velnor-surface: #131832;
  --velnor-surface-light: #1D2348;
  --velnor-violet: #6C3CE9;
  --velnor-violet-dark: #4B25B8;
  --velnor-magenta: #FF3D81;
  --velnor-lime: #C6FF00;
  --velnor-lime-dark: #9FCC00;
  --velnor-text: #E8EAF6;
  --velnor-text-dim: #9CA3D4;
  --velnor-border: #2A3163;
  --velnor-gradient: linear-gradient(135deg, var(--velnor-violet) 0%, var(--velnor-magenta) 100%);
  --velnor-gradient-dark: linear-gradient(180deg, var(--velnor-void) 0%, var(--velnor-surface) 100%);
  --shadow-glow: 0 0 24px rgba(108, 60, 233, 0.45);
  --shadow-glow-lime: 0 0 20px rgba(198, 255, 0, 0.4);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: #F7F8FC;
  color: #1A1F3D;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--velnor-void);
}
::-webkit-scrollbar-thumb {
  background: var(--velnor-gradient);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--velnor-magenta);
}

/* ===== Sticky Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--velnor-void);
  border-bottom: 1px solid var(--velnor-border);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.35);
  transition: all 0.3s ease;
}

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

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

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

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

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

.nav-link.active {
  color: var(--velnor-lime);
}

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

.mobile-menu a {
  color: var(--velnor-text-dim);
  border-bottom: 1px solid var(--velnor-border);
}

.mobile-menu a:hover {
  color: var(--velnor-lime);
  background-color: rgba(198, 255, 0, 0.05);
}

.mobile-menu-toggle {
  color: var(--velnor-text);
}

/* ===== Buttons ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--velnor-gradient);
  color: #ffffff;
  font-weight: 600;
  padding: 0.85rem 1.75rem;
  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 30px rgba(255, 61, 129, 0.5);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: transparent;
  color: var(--velnor-lime);
  font-weight: 600;
  padding: 0.8rem 1.7rem;
  border-radius: 8px;
  border: 2px solid var(--velnor-lime);
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-secondary:hover {
  background-color: var(--velnor-lime);
  color: var(--velnor-void);
  box-shadow: var(--shadow-glow-lime);
}

.btn-outline-light {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: transparent;
  color: var(--velnor-text);
  font-weight: 600;
  padding: 0.8rem 1.7rem;
  border-radius: 8px;
  border: 2px solid var(--velnor-border);
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-outline-light:hover {
  border-color: var(--velnor-violet);
  color: var(--velnor-violet);
}

/* ===== Cards ===== */
.tech-card {
  background-color: var(--velnor-surface);
  border: 1px solid var(--velnor-border);
  border-radius: 14px;
  padding: 2rem;
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
  position: relative;
  overflow: hidden;
}

.tech-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--velnor-gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}

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

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

.tech-card h3, .tech-card h4 {
  color: var(--velnor-text);
}

.tech-card p {
  color: var(--velnor-text-dim);
}

.tech-card.static-card {
  cursor: default;
}

.tech-card.static-card:hover {
  transform: none;
  box-shadow: none;
}

/* ===== Section Backgrounds ===== */
.section-dark {
  background: var(--velnor-gradient-dark);
  color: var(--velnor-text);
}

.section-glow {
  position: relative;
}

.section-glow::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  background: var(--velnor-violet);
  filter: blur(140px);
  opacity: 0.35;
  border-radius: 50%;
  z-index: 0;
}

/* ===== Accordion ===== */
.accordion-item {
  border: 1px solid var(--velnor-border);
  border-radius: 10px;
  margin-bottom: 12px;
  overflow: hidden;
  background-color: var(--velnor-surface);
}

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.5rem;
  cursor: pointer;
  color: var(--velnor-text);
  font-weight: 600;
  transition: background-color 0.25s ease;
}

.accordion-header:hover {
  background-color: var(--velnor-surface-light);
}

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

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

.accordion-content {
  display: none;
  padding: 0 1.5rem 1.3rem;
  color: var(--velnor-text-dim);
  line-height: 1.7;
}

/* ===== Forms ===== */
.form-input,
.form-textarea,
.form-select {
  width: 100%;
  background-color: #ffffff;
  border: 2px solid #E1E4F0;
  border-radius: 10px;
  padding: 0.85rem 1.1rem;
  color: #1A1F3D;
  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(--velnor-violet);
  box-shadow: 0 0 0 4px rgba(108, 60, 233, 0.15);
}

.form-label {
  display: block;
  font-weight: 600;
  color: #1A1F3D;
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
}

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

.form-card {
  background-color: #ffffff;
  border-radius: 18px;
  border: 1px solid #E1E4F0;
  box-shadow: 0 10px 50px rgba(20, 20, 60, 0.08);
  padding: 2.5rem;
}

/* ===== Cookie Banner ===== */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2000;
  background-color: var(--velnor-void);
  border-top: 2px solid var(--velnor-violet);
  padding: 1.25rem 1.5rem;
  box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.4);
}

.cookie-banner h3 {
  color: #ffffff;
  font-weight: 700;
}

.cookie-banner p {
  color: #C7CCEB;
}

.cookie-banner a {
  color: #B8A0FF;
  text-decoration: underline;
}

.cookie-banner a:hover {
  color: var(--velnor-lime);
}

/* ===== Loading Spinner ===== */
.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--velnor-border);
  border-top: 4px solid var(--velnor-violet);
  border-radius: 50%;
  animation: velnor-spin 0.8s linear infinite;
}

@keyframes velnor-spin {
  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 0.7s ease forwards;
}

@keyframes floatPulse {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.float-pulse {
  animation: floatPulse 4s ease-in-out infinite;
}

/* ===== Badges ===== */
.badge-popular {
  background: var(--velnor-lime);
  color: var(--velnor-void);
  font-weight: 700;
  font-size: 0.75rem;
  padding: 0.3rem 0.9rem;
  border-radius: 999px;
  display: inline-block;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-glow-lime);
}

.badge-tag {
  background-color: rgba(108, 60, 233, 0.15);
  color: var(--velnor-violet);
  border: 1px solid var(--velnor-violet);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
}

/* ===== Hero Grid Pattern ===== */
.hero-grid-bg {
  background-image:
    linear-gradient(rgba(108, 60, 233, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108, 60, 233, 0.08) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* ===== Divider ===== */
.divider-glow {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--velnor-violet), var(--velnor-magenta), transparent);
  border: none;
}

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

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

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

.site-footer a:hover {
  color: var(--velnor-lime);
}

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

/* ===== Responsive Tweaks ===== */
@media (max-width: 768px) {
  .form-card {
    padding: 1.5rem;
  }
  .tech-card {
    padding: 1.5rem;
  }
}