:root {
  --bs-accent: #1a73e8;
  --bs-accent-rgb: 26, 115, 232;
  --bs-dark-navy: #0a1929;
  --bs-dark-card: #132f4c;
}

html {
  font-size: 15px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: #f8fafc;
  color: #1e293b;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  margin: 0;
}

main {
  flex: 1;
}

.navbar {
  background: var(--bs-dark-navy) !important;
  padding: .8rem 0;
  backdrop-filter: blur(10px);
}

.navbar-brand {
  font-size: 1.2rem;
  letter-spacing: -0.5px;
}

.nav-link {
  font-size: .9rem;
  font-weight: 500;
  color: rgba(255,255,255,.7) !important;
  border-radius: 8px;
  transition: all .2s;
}

.nav-link:hover {
  color: #fff !important;
  background: rgba(255,255,255,.1);
}

.nav-btn {
  padding: .5rem 1.2rem !important;
  font-size: .9rem;
  font-weight: 600;
}

.btn-accent {
  background: var(--bs-accent);
  border-color: var(--bs-accent);
  color: #fff;
  border-radius: 10px;
  font-weight: 600;
  transition: all .2s;
}

.btn-accent:hover, .btn-accent:focus {
  background: #1557b0;
  border-color: #1557b0;
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(26,115,232,.3);
}

.text-accent {
  color: var(--bs-accent) !important;
}

.bg-accent {
  background: var(--bs-accent) !important;
}

.hero-section {
  position: relative;
  background: linear-gradient(135deg, var(--bs-dark-navy) 0%, #0d2137 50%, #132f4c 100%);
  min-height: 85vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(26,115,232,.15) 0%, transparent 60%);
  pointer-events: none;
}

.hero-icon-wrapper {
  width: 300px;
  height: 300px;
  margin: 0 auto;
  background: rgba(26,115,232,.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid rgba(26,115,232,.3);
}

.hero-icon {
  font-size: 8rem;
  color: var(--bs-accent);
  opacity: .8;
}

.min-vh-70 {
  min-height: 70vh;
}

.feature-card {
  border-radius: 16px !important;
  transition: all .3s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0,0,0,.1) !important;
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto;
  background: rgba(26,115,232,.1);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--bs-accent);
}

.page-header {
  background: linear-gradient(135deg, var(--bs-dark-navy), var(--bs-dark-card));
  padding: 3rem 0;
}

.card {
  border-radius: 16px !important;
  border: none;
}

.form-control, .form-select {
  border-radius: 10px;
  border: 2px solid #e2e8f0;
  padding: .7rem 1rem;
  transition: all .2s;
  font-size: .95rem;
}

.form-control:focus, .form-select:focus {
  border-color: var(--bs-accent);
  box-shadow: 0 0 0 3px rgba(26,115,232,.15);
}

.form-label {
  font-size: .9rem;
  margin-bottom: .4rem;
}

.drop-zone {
  border: 2px dashed #cbd5e1;
  border-radius: 16px;
  padding: 2.5rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all .2s;
  background: #f8fafc;
}

.drop-zone:hover,
.drop-zone-active {
  border-color: var(--bs-accent);
  background: rgba(26,115,232,.04);
}

.drop-zone-has-file {
  border-style: solid;
  border-color: #22c55e;
  background: rgba(34,197,94,.04);
}

.drop-zone-icon {
  font-size: 3.5rem;
  color: var(--bs-accent);
  opacity: .6;
  display: block;
  margin-bottom: 1rem;
}

.file-icon {
  font-size: 2rem;
  color: var(--bs-accent);
}

.footer {
  background: var(--bs-dark-navy);
  padding: 3rem 0 1.5rem;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .hero-section {
    min-height: 60vh;
  }
  .display-4 {
    font-size: 2rem;
  }
}