:root {
  --brand-primary: #0a64ff;
  --brand-dark: #0a1a2b;
  --brand-accent: #00d1b2;
  --brand-gradient: linear-gradient(135deg, #0a64ff 0%, #00d1b2 100%);
  --text-muted: #6c7a89;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --shadow-sm: 0 2px 8px rgba(10, 26, 43, 0.08);
  --shadow-md: 0 8px 32px rgba(10, 26, 43, 0.12);
  --shadow-lg: 0 20px 60px rgba(10, 26, 43, 0.16);
}

html, body { height: 100%; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  color: #0f172a;
  line-height: 1.6;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

/* Custom scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #f1f5f9; }
::-webkit-scrollbar-thumb { background: var(--brand-primary); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #084dcc; }

.navbar { 
  background: rgba(255,255,255,0.85) !important; 
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.2);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s var(--ease);
}
.navbar-brand { 
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.navbar-brand span { color: var(--brand-primary); }
.nav-link {
  position: relative;
  font-weight: 500;
  transition: color 0.3s var(--ease);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--brand-gradient);
  transition: all 0.3s var(--ease);
  transform: translateX(-50%);
}
.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.btn-brand {
  background: var(--brand-gradient);
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: 12px 24px;
  font-weight: 600;
  box-shadow: var(--shadow-md);
  transition: all 0.3s var(--ease);
  position: relative;
  overflow: hidden;
}
.btn-brand::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}
.btn-brand:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.btn-brand:hover::before {
  left: 100%;
}
.btn-outline-primary {
  border: 2px solid var(--brand-primary);
  color: var(--brand-primary);
  background: transparent;
  border-radius: 12px;
  padding: 12px 24px;
  font-weight: 600;
  transition: all 0.3s var(--ease);
}
.btn-outline-primary:hover {
  background: var(--brand-primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.hero {
  position: relative;
  min-height: 100vh;
  color: #fff;
  display: grid;
  place-items: center;
  text-align: center;
  background: linear-gradient(135deg, rgba(10,26,43,0.9), rgba(10,100,255,0.7)), var(--hero-image, none) center/cover no-repeat;
  overflow: hidden;
  position: relative;
}
.hero::before{
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(0,209,178,0.3), transparent),
    radial-gradient(1000px 500px at 90% 110%, rgba(10,100,255,0.3), transparent),
    radial-gradient(800px 400px at 50% 50%, rgba(255,255,255,0.1), transparent);
  filter: blur(30px);
  animation: float 15s ease-in-out infinite alternate;
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 100px;
  background: linear-gradient(to top, rgba(255,255,255,0.1), transparent);
  pointer-events: none;
}
.hero h1 { 
  font-weight: 900;
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.1;
  margin-bottom: 1rem;
  text-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.hero .lead {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  font-weight: 400;
  opacity: 0.95;
  max-width: 600px;
  margin: 0 auto;
}

@keyframes float {
  0% { transform: translateY(0) scale(1) rotate(0deg); }
  50% { transform: translateY(-8px) scale(1.01) rotate(0.5deg); }
  100% { transform: translateY(-12px) scale(1.02) rotate(0deg); }
}

.section { 
  padding: 30px 0;
  position: relative;
}
.section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(10,100,255,0.2), transparent);
}

.feature-icon {
  width: 80px; 
  height: 80px; 
  border-radius: 20px; 
  display: grid; 
  place-items: center;
  background: var(--brand-gradient);
  color: #fff; 
  font-size: 32px;
  box-shadow: var(--shadow-md);
  transition: all 0.3s var(--ease);
  position: relative;
  overflow: hidden;
}
.feature-icon::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent, rgba(255,255,255,0.2), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s var(--ease);
}
.feature-icon:hover::before {
  transform: translateX(100%);
}

.card { 
  transition: all 0.4s var(--ease); 
  border: none;
  border-radius: 20px;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  position: relative;
}
.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--brand-gradient);
  transform: scaleX(0);
  transition: transform 0.3s var(--ease);
}
.card:hover { 
  transform: translateY(-8px) scale(1.02); 
  box-shadow: var(--shadow-lg);
}
.card:hover::before {
  transform: scaleX(1);
}
.card h5 { 
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--brand-dark);
}
.card-body {
  padding: 2rem;
}

.img-zoom { 
  overflow: hidden; 
  border-radius: 20px;
  box-shadow: var(--shadow-md);
  position: relative;
}
.img-zoom::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent, rgba(10,100,255,0.1), transparent);
  opacity: 0;
  transition: opacity 0.3s var(--ease);
  z-index: 1;
}
.img-zoom:hover::before {
  opacity: 1;
}
.img-zoom img { 
  width: 100%; 
  height: 250px; 
  object-fit: cover; 
  transition: transform 0.6s var(--ease); 
  display: block;
  filter: brightness(0.9);
}
.img-zoom:hover img { 
  transform: scale(1.08);
  filter: brightness(1.1);
}

.logo-strip { 
  opacity: 0.8;
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(10px);
  border-top: 1px solid rgba(10,100,255,0.1);
  border-bottom: 1px solid rgba(10,100,255,0.1);
}
.logos-marquee { 
  display: flex; 
  gap: 80px; 
  animation: marquee 40s linear infinite;
  padding: 2rem 0;
}
.logos-marquee img { 
  height: 40px; 
  filter: grayscale(100%) brightness(0.7); 
  opacity: 0.6; 
  transition: all 0.3s var(--ease);
  transform: scale(1);
}
.logos-marquee img:hover { 
  filter: none; 
  opacity: 1;
  transform: scale(1.1);
}
@keyframes marquee { 
  from { transform: translateX(0); } 
  to { transform: translateX(-50%); } 
}

.gradient-cta { 
  background: var(--brand-gradient);
  color: #fff; 
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}
.gradient-cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
  animation: rotate 20s linear infinite;
  pointer-events: none;
}
@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.footer { 
  background: linear-gradient(135deg, #0b1220 0%, #1e293b 100%);
  color: #cbd5e1;
  position: relative;
  overflow: hidden;
}
.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--brand-gradient);
}
.footer a { 
  color: #93c5fd;
  transition: all 0.3s var(--ease);
  text-decoration: none;
}
.footer a:hover {
  color: #fff;
  text-shadow: 0 0 10px rgba(147, 197, 253, 0.5);
}

[data-aos] { will-change: transform, opacity; }

/* Additional modern enhancements */
.bg-light {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%) !important;
}

.display-4 {
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Form enhancements */
.form-control {
  border: 2px solid rgba(10,100,255,0.1);
  border-radius: 12px;
  padding: 12px 16px;
  transition: all 0.3s var(--ease);
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(10px);
}
.form-control:focus {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(10,100,255,0.1);
  transform: translateY(-1px);
}

/* Stats section enhancement */
.display-5 {
  font-weight: 800;
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 3rem;
}

/* Carousel enhancements */
.carousel-control-prev,
.carousel-control-next {
  background: rgba(10,100,255,0.1);
  border-radius: 50%;
  width: 50px;
  height: 50px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.2);
  transition: all 0.3s var(--ease);
}
.carousel-control-prev:hover,
.carousel-control-next:hover {
  background: rgba(10,100,255,0.2);
  transform: scale(1.1);
}

/* Accordion enhancements */
.accordion-button {
  border: none;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(10px);
  border-radius: 12px !important;
  font-weight: 600;
  transition: all 0.3s var(--ease);
}
.accordion-button:not(.collapsed) {
  background: var(--brand-gradient);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.accordion-button:focus {
  box-shadow: 0 0 0 3px rgba(10,100,255,0.1);
}

/* Loading animation */
.loading {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--brand-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease-out;
}
.loading.hidden {
  opacity: 0;
  pointer-events: none;
}
.loading-spinner {
  width: 50px;
  height: 50px;
  border: 3px solid rgba(255,255,255,0.3);
  border-top: 3px solid #fff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Floating elements animation */
.floating {
  animation: floating 3s ease-in-out infinite;
}
@keyframes floating {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

/* Text reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s var(--ease);
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive improvements */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  .section {
    padding: 60px 0;
  }
  .card-body {
    padding: 1.5rem;
  }
  .feature-icon {
    width: 60px;
    height: 60px;
    font-size: 24px;
  }
}