/* Modern Styles for OKBike Mechanic - Light Theme Only */
:root {
  --primary: #0d6efd;
  --secondary: #6c757d;
  --success: #198754;
  --info: #0dcaf0;
  --warning: #ffc107;
  --danger: #dc3545;
  --light: #f8f9fa;
  --dark: #212529;
  --body-bg: #ffffff;
  --body-color: #212529;
  --card-bg: #ffffff;
  --border-color: #dee2e6;
  --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
  --shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
  --font-family: 'Poppins', sans-serif;
}

body {
  font-family: var(--font-family);
  background-color: var(--body-bg);
  color: var(--body-color);
  line-height: 1.6;
}

/* Navbar */
.navbar {
  background-color: #ffffff;
  box-shadow: var(--shadow-sm);
  padding: 1rem 0;
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--primary) !important;
}

.nav-link {
  font-weight: 500;
  color: var(--dark) !important;
  margin: 0 0.5rem;
  transition: all 0.3s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--primary) !important;
  background-color: var(--light);
  border-radius: 0.5rem;
}

/* Hero Section */
.hero-section {
  background: linear-gradient(135deg, #f0f7ff 0%, #e0efff 100%);
  padding: 6rem 0;
  position: relative;
  overflow: hidden;
}

.hero-content h1 {
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 1.5rem;
}

.hero-content p {
  color: var(--secondary);
  margin-bottom: 2rem;
  font-size: 1.25rem;
}

/* Cards */
.card {
  border: none;
  background-color: var(--card-bg);
  border-radius: 1rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}

.card-body {
  padding: 2rem;
}

.feature-icon {
  width: 4rem;
  height: 4rem;
  border-radius: 1rem;
  background-color: rgba(13, 110, 253, 0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.75rem;
}

/* Buttons */
.btn {
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  border-radius: 0.75rem;
  transition: all 0.3s ease;
}

.btn-primary {
  background-color: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 4px 6px rgba(13, 110, 253, 0.2);
}

.btn-primary:hover {
  background-color: #0b5ed7;
  border-color: #0a58ca;
  transform: translateY(-2px);
  box-shadow: 0 6px 8px rgba(13, 110, 253, 0.3);
}

.btn-light {
  background-color: #ffffff;
  border-color: #dee2e6;
  color: var(--dark);
}

.btn-light:hover {
  background-color: #f8f9fa;
  border-color: #c6c7c8;
}

/* Sections */
.section {
  padding: 5rem 0;
}

.bg-light-alt {
  background-color: #f8fdff;
}

/* Footer */
.footer {
  background-color: #ffffff;
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--border-color);
}

.footer h5 {
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--dark);
}

.footer-link {
  color: var(--secondary);
  text-decoration: none;
  display: block;
  margin-bottom: 0.75rem;
  transition: color 0.3s ease;
}

.footer-link:hover {
  color: var(--primary);
}

.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background-color: #f1f5f9;
  color: var(--secondary);
  margin-right: 0.75rem;
  transition: all 0.3s ease;
  text-decoration: none;
}

.social-icon:hover {
  background-color: var(--primary);
  color: #ffffff;
  transform: translateY(-3px);
}

/* Stats */
.stat-card {
  text-align: center;
  padding: 2rem;
  background-color: #ffffff;
  border-radius: 1rem;
  box-shadow: var(--shadow-sm);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

/* App Screenshots */
.screenshot-container {
  overflow-x: auto;
  white-space: nowrap;
  padding-bottom: 1rem;
  -webkit-overflow-scrolling: touch;
}

.app-screenshot {
  display: inline-block;
  width: 280px;
  border-radius: 1.5rem;
  box-shadow: var(--shadow);
  margin-right: 1.5rem;
  transition: transform 0.3s ease;
}

.app-screenshot:hover {
  transform: scale(1.02);
}

/* Forms */
.form-control, .form-select {
  padding: 0.8rem 1rem;
  border-radius: 0.75rem;
  border: 1px solid var(--border-color);
  background-color: #fcfcfc;
}

.form-control:focus, .form-select:focus {
  background-color: #ffffff;
  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.15);
  border-color: var(--primary);
}

.form-label {
  font-weight: 500;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

/* Page Headers */
.page-header {
  padding: 4rem 0;
  background: linear-gradient(135deg, #f0f7ff 0%, #ffffff 100%);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 3rem;
}

.page-title {
  font-weight: 800;
  color: var(--dark);
}

/* Animations */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }

/* Responsive */
@media (max-width: 991.98px) {
  .hero-section {
    padding: 4rem 0;
    text-align: center;
  }
}