@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 {
  --crovia-void: #0B0E1A;
  --crovia-deep: #131829;
  --crovia-panel: #1A2138;
  --crovia-primary: #6C4CFF;
  --crovia-primary-light: #9C82FF;
  --crovia-cyan: #2DE0C8;
  --crovia-magenta: #FF3D8A;
  --crovia-amber: #FFB84D;
  --crovia-text-light: #E9ECFB;
  --crovia-text-muted: #A6ADC9;
  --crovia-border: #2A3352;
  --crovia-gradient: linear-gradient(135deg, #6C4CFF 0%, #2DE0C8 100%);
  --crovia-gradient-alt: linear-gradient(135deg, #FF3D8A 0%, #6C4CFF 100%);
  --shadow-glow: 0 0 30px rgba(108, 76, 255, 0.35);
  --shadow-glow-cyan: 0 0 24px rgba(45, 224, 200, 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;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--crovia-void);
}
::-webkit-scrollbar-thumb {
  background: var(--crovia-gradient);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--crovia-cyan);
}

/* ===== Sticky Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--crovia-void);
  border-bottom: 1px solid var(--crovia-border);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: 0 6px 30px rgba(108, 76, 255, 0.25);
}

.logo-glow {
  filter: drop-shadow(0 0 8px rgba(108, 76, 255, 0.5));
  transition: filter 0.3s ease;
}
.logo-glow:hover {
  filter: drop-shadow(0 0 16px rgba(45, 224, 200, 0.7));
}

.nav-link {
  position: relative;
  color: var(--crovia-text-muted);
  font-weight: 500;
  transition: color 0.25s ease;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: var(--crovia-gradient);
  transition: width 0.3s ease;
}
.nav-link:hover,
.nav-link.active {
  color: var(--crovia-text-light);
}
.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

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

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

/* ===== Buttons ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--crovia-gradient);
  color: #ffffff;
  font-weight: 600;
  padding: 0.85rem 2rem;
  border-radius: 8px;
  border: none;
  box-shadow: var(--shadow-glow);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  cursor: pointer;
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 40px rgba(108, 76, 255, 0.5);
}
.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--crovia-cyan);
  font-weight: 600;
  padding: 0.8rem 1.9rem;
  border-radius: 8px;
  border: 2px solid var(--crovia-cyan);
  transition: all 0.25s ease;
  cursor: pointer;
}
.btn-outline:hover {
  background: var(--crovia-cyan);
  color: var(--crovia-void);
  box-shadow: var(--shadow-glow-cyan);
}

.btn-magenta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--crovia-gradient-alt);
  color: #ffffff;
  font-weight: 600;
  padding: 0.85rem 2rem;
  border-radius: 999px;
  border: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  cursor: pointer;
}
.btn-magenta:hover {
  transform: scale(1.04);
  box-shadow: 0 8px 30px rgba(255, 61, 138, 0.45);
}

/* ===== Cards ===== */
.tech-card {
  background: var(--crovia-panel);
  border: 1px solid var(--crovia-border);
  border-radius: 14px;
  padding: 2rem;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.tech-card:hover {
  transform: translateY(-6px);
  border-color: var(--crovia-primary);
  box-shadow: var(--shadow-glow);
}

.tech-card-flat {
  background: #ffffff;
  border: 1px solid #E5E7F0;
  border-radius: 14px;
  padding: 2rem;
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}
.tech-card-flat:hover {
  border-color: var(--crovia-primary);
  box-shadow: 0 12px 40px rgba(108, 76, 255, 0.15);
}

.icon-badge {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--crovia-gradient);
  color: #ffffff;
  font-size: 1.6rem;
  box-shadow: var(--shadow-glow);
}

/* ===== Accordion ===== */
.accordion-item {
  border: 1px solid #E5E7F0;
  border-radius: 10px;
  margin-bottom: 0.9rem;
  overflow: hidden;
  transition: border-color 0.3s ease;
}
.accordion-item:hover {
  border-color: var(--crovia-primary-light);
}
.accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem 1.5rem;
  background: #F7F7FC;
  cursor: pointer;
  font-weight: 600;
  color: #1a1a2e;
  transition: background 0.25s ease;
}
.accordion-header:hover {
  background: #EFEEFF;
}
.accordion-header .accordion-icon {
  transition: transform 0.3s ease;
  color: var(--crovia-primary);
}
.accordion-header.active .accordion-icon {
  transform: rotate(180deg);
}
.accordion-content {
  display: none;
  padding: 1.2rem 1.5rem;
  background: #ffffff;
  color: #4b5065;
  line-height: 1.7;
}

/* ===== Forms ===== */
.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.85rem 1.1rem;
  border: 1.5px solid #DDE0F0;
  border-radius: 10px;
  background-color: #FBFBFF;
  color: #1a1a2e;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
}
.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--crovia-primary);
  background-color: #ffffff;
  box-shadow: 0 0 0 4px rgba(108, 76, 255, 0.15);
}
.form-label {
  display: block;
  font-weight: 600;
  color: #1a1a2e;
  margin-bottom: 0.4rem;
  font-size: 0.92rem;
}
.form-group {
  margin-bottom: 1.4rem;
  position: relative;
}
.form-input::placeholder,
.form-textarea::placeholder {
  color: #9AA0BC;
}

/* ===== Hero / Section Backgrounds ===== */
.hero-dark {
  background: radial-gradient(circle at 20% 20%, rgba(108, 76, 255, 0.25), transparent 40%),
              radial-gradient(circle at 80% 60%, rgba(45, 224, 200, 0.2), transparent 45%),
              var(--crovia-void);
  color: var(--crovia-text-light);
}

.section-grid-lines {
  background-image: linear-gradient(rgba(108, 76, 255, 0.06) 1px, transparent 1px),
                     linear-gradient(90deg, rgba(108, 76, 255, 0.06) 1px, transparent 1px);
  background-size: 40px 40px;
}

.gradient-text {
  background: var(--crovia-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ===== Cookie Banner ===== */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background-color: var(--crovia-deep);
  border-top: 1px solid var(--crovia-border);
  box-shadow: 0 -6px 30px rgba(0, 0, 0, 0.4);
  padding: 1.25rem 1.5rem;
}

/* ===== Loading Spinner ===== */
.spinner {
  width: 44px;
  height: 44px;
  border: 4px solid rgba(108, 76, 255, 0.2);
  border-top-color: var(--crovia-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ===== Fade / Slide Animations ===== */
.fade-in-up {
  animation: fadeInUp 0.7s ease forwards;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.pulse-glow {
  animation: pulseGlow 2.5s ease-in-out infinite;
}
@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 12px rgba(108, 76, 255, 0.35); }
  50% { box-shadow: 0 0 28px rgba(45, 224, 200, 0.5); }
}

/* ===== Badges / Tags ===== */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.9rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  background: rgba(108, 76, 255, 0.12);
  color: var(--crovia-primary);
  border: 1px solid rgba(108, 76, 255, 0.3);
}

.badge-popular {
  background: var(--crovia-gradient-alt);
  color: #ffffff;
  border: none;
}

/* ===== Footer ===== */
.site-footer {
  background-color: var(--crovia-void);
  color: var(--crovia-text-muted);
  border-top: 1px solid var(--crovia-border);
}
.footer-heading {
  color: var(--crovia-text-light);
  font-weight: 700;
  margin-bottom: 1rem;
}
.footer-link {
  color: var(--crovia-text-muted);
  transition: color 0.2s ease;
}
.footer-link:hover {
  color: var(--crovia-cyan);
}

/* ===== Divider ===== */
.divider-gradient {
  height: 3px;
  width: 80px;
  background: var(--crovia-gradient);
  border-radius: 3px;
}

/* ===== Utility ===== */
.text-muted-light {
  color: var(--crovia-text-muted);
}

@media (max-width: 768px) {
  .btn-primary,
  .btn-outline,
  .btn-magenta {
    width: 100%;
    text-align: center;
  }
}