:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --border: #e5e7eb;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

* {
  box-sizing: border-box;
}

body {
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
}

main {
  padding-top: 72px;
}

.section {
  padding: 72px 0;
}

.section-muted {
  background: #f1f3f6;
}

.eyebrow {
  letter-spacing: 0.16em;
  font-size: 0.75rem;
}

.navbar {
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.05);
}

.navbar-brand {
  font-size: 1.05rem;
}

.hero-section .lead {
  font-size: 1.1rem;
}

.hero-card,
.about-panel,
.contact-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.badge-soft {
  background: #f3f4f6;
  color: var(--text);
  border-radius: 999px;
  padding: 6px 12px;
  font-weight: 500;
  font-size: 0.75rem;
}

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  border-radius: var(--radius-sm);
  padding: 0.65rem 1.4rem;
}

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

.btn-outline-dark {
  border-radius: var(--radius-sm);
  padding: 0.65rem 1.4rem;
}

.card {
  border-radius: var(--radius-md);
}

.form-control {
  border-radius: var(--radius-sm);
  border-color: var(--border);
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.15);
}

.toast {
  border-radius: var(--radius-sm);
}

footer a {
  text-decoration: none;
}

@media (max-width: 991px) {
  .section {
    padding: 56px 0;
  }
  .hero-section {
    padding-top: 40px;
  }
}


html {
  scroll-behavior: smooth;
}

body {
  position: relative;
  overflow-x: hidden;
}

.navbar,
main,
footer {
  position: relative;
  z-index: 1;
}

.site-background {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.bg-grid,
.bg-orb,
.bg-cursor-glow {
  position: absolute;
}

.bg-grid {
  inset: 0;
  background-image:
    linear-gradient(rgba(17, 24, 39, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 24, 39, 0.03) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at center, rgba(0, 0, 0, 0.68), transparent 78%);
  opacity: 0.22;
}

.bg-orb {
  border-radius: 50%;
  filter: blur(4px);
  opacity: 0.7;
  will-change: transform;
  animation: pulseOrb 12s ease-in-out infinite;
}

.bg-orb-one {
  top: 7%;
  left: -8%;
  width: 340px;
  height: 340px;
  background: radial-gradient(circle at 30% 30%, rgba(37, 99, 235, 0.34), rgba(37, 99, 235, 0.06) 60%, transparent 72%);
}

.bg-orb-two {
  top: 18%;
  right: -10%;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle at 40% 40%, rgba(16, 185, 129, 0.24), rgba(37, 99, 235, 0.06) 58%, transparent 74%);
  animation-duration: 18s;
}

.bg-orb-three {
  bottom: -8%;
  left: 48%;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle at 50% 50%, rgba(251, 191, 36, 0.2), rgba(37, 99, 235, 0.06) 62%, transparent 76%);
  animation-duration: 20s;
}

.bg-cursor-glow {
  top: 0;
  left: 0;
  width: 240px;
  height: 240px;
  margin: -120px 0 0 -120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, rgba(37, 99, 235, 0.03) 48%, transparent 72%);
  opacity: 0.5;
  will-change: transform;
}

.hero-section,
.section-muted,
.about-panel,
.hero-card,
.contact-box,
.card {
  position: relative;
}

.hero-section::after,
.section-muted::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0));
}

.hero-card,
.about-panel,
.contact-box,
.card,
.navbar {
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

.hero-card,
.about-panel,
.contact-box,
.card {
  background: rgba(255, 255, 255, 0.97);
}

.card,
.hero-card,
.about-panel,
.contact-box {
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.08);
}

.btn-primary,
.btn-outline-dark {
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.btn-primary:hover,
.btn-outline-dark:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.12);
}

@keyframes pulseOrb {
  0%, 100% {
    opacity: 0.52;
    filter: blur(4px);
  }
  50% {
    opacity: 0.78;
    filter: blur(2px);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .bg-orb,
  .bg-cursor-glow,
  .btn-primary,
  .btn-outline-dark {
    animation: none;
    transition: none;
  }

  .bg-cursor-glow {
    display: none;
  }
}