:root {
  --primary: #1d4ed8;
  --primary-dark: #1e3a8a;
  --accent: #0ea5e9;
  --bg: #f8fafc;
  --text: #0f172a;
  --muted: #475569;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text);
  font-weight: 700;
}

.navbar-brand {
  letter-spacing: 0.5px;
}

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.btn-primary:hover, .btn-primary:focus {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
}

.btn-outline-primary:hover, .btn-outline-primary:focus {
  color: #fff;
  background: var(--primary);
  border-color: var(--primary);
}

.hero {
  position: relative;
  background: linear-gradient(120deg, rgba(30, 58, 138, 0.75), rgba(14, 165, 233, 0.75)),
              url('https://images.unsplash.com/photo-1520607162513-77705c0f0d4a?auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
  color: #fff;
  padding: 120px 0;
}

.hero .hero-content {
  max-width: 640px;
}

.section-title {
  margin-bottom: 1rem;
}

.section-subtitle {
  color: var(--muted);
  margin-bottom: 2rem;
}

.card-feature, .card-usecase, .card-testimonial {
  border: none;
  box-shadow: var(--shadow);
  border-radius: 14px;
}

.badge-soft {
  background: rgba(29, 78, 216, 0.1);
  color: var(--primary-dark);
  border-radius: 999px;
  padding: 0.4rem 0.75rem;
  font-size: 0.85rem;
}

.timeline-step {
  position: relative;
  padding-left: 2.5rem;
}

.timeline-step::before {
  content: '';
  position: absolute;
  left: 0.75rem;
  top: 0.4rem;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 6px rgba(29, 78, 216, 0.12);
}

.timeline-step::after {
  content: '';
  position: absolute;
  left: 1.2rem;
  top: 1.4rem;
  bottom: -1.4rem;
  width: 2px;
  background: #e2e8f0;
}

.timeline-step:last-child::after {
  display: none;
}

.security-card {
  border-radius: 14px;
  border: 1px solid #e2e8f0;
  padding: 1.25rem;
  background: #fff;
  box-shadow: var(--shadow);
}

.footer-link {
  color: #e2e8f0;
  text-decoration: none;
}

.footer-link:hover, .footer-link:focus {
  color: #fff;
  text-decoration: underline;
}

.newsletter-form .form-control:focus {
  box-shadow: 0 0 0 0.2rem rgba(29, 78, 216, 0.25);
}

.section-padding {
  padding: 80px 0;
}

.logo-strip img {
  max-height: 36px;
  opacity: 0.75;
}

.alert-floating {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1050;
}

.card-pricing {
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  box-shadow: var(--shadow);
}

.table-admin td, .table-admin th {
  vertical-align: middle;
}

.visually-hidden-focusable:not(:focus):not(:focus-within) {
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  height: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

.smooth-scroll {
  scroll-behavior: smooth;
}

@media (max-width: 767px) {
  .hero {
    padding: 80px 0;
  }
}