:root {
  --primary-color: #3b82f6;
  /* Bright Blue for accents */
  --primary-hover: #2563eb;
  --secondary-color: #94a3b8;
  --background-color: #0f172a;
  /* Dark Navy Background */
  --text-main: #f8fafc;
  /* Light text */
  --text-muted: #cbd5e1;
  --card-bg: #1e293b;
  /* Darker card background */
  --border-radius: 16px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
}

html {
  font-size: 16px;
  position: relative;
  min-height: 100%;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--background-color);
  color: var(--text-main);
  margin-bottom: 60px;
  line-height: 1.6;
}

/* Typography Enhancements */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  letter-spacing: -0.025em;
  color: #fff;
}

/* Navbar Enhancements */
.navbar {
  background-color: rgba(30, 41, 59, 0.95) !important;
  /* Dark Navbar */
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1) !important;
}

.navbar-brand {
  font-size: 1.5rem;
  letter-spacing: -0.5px;
  color: #fff !important;
}

.nav-link {
  color: var(--text-muted) !important;
}

.nav-link:hover,
.nav-link.active {
  color: #fff !important;
}

/* Button Enhancements */
.btn {
  border-radius: 12px;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  transition: all 0.2s ease;
}

.btn-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: #fff;
  box-shadow: 0 4px 6px -1px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  border-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 12px -1px rgba(59, 130, 246, 0.4);
}

.btn-outline-light {
  border: 2px solid rgba(255, 255, 255, 0.2);
  color: #fff;
}

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

/* Phone Frame for Screenshots */
.phone-frame {
  border-radius: 32px;
  border: 8px solid #334155;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  position: relative;
  background-color: #000;
  max-width: 300px;
  margin: 0 auto;
}

.phone-frame img {
  width: 100%;
  height: auto;
  display: block;
}

/* Card Enhancements */
.card {
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius);
  background-color: var(--card-bg);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg) !important;
  border-color: rgba(59, 130, 246, 0.3);
}

.shadow-sm {
  box-shadow: var(--shadow-sm) !important;
}

.shadow-lg {
  box-shadow: var(--shadow-lg) !important;
}

/* Form Controls */
.form-control {
  background-color: #334155;
  border: 1px solid #475569;
  color: #fff;
  border-radius: 8px;
  padding: 0.75rem 1rem;
}

.form-control:focus {
  background-color: #1e293b;
  border-color: var(--primary-color);
  color: #fff;
  box-shadow: 0 0 0 0.25rem rgba(59, 130, 246, 0.25);
}

/* Utilities */
.text-primary {
  color: var(--primary-color) !important;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: #0f172a;
}

::-webkit-scrollbar-thumb {
  background: #334155;
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: #475569;
}