@import "tailwindcss/preflight";
@import "tailwindcss/theme";
@import "tailwindcss/utilities";

/* Google Fonts - Construction themed */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,100..1000;1,9..40,100..1000&family=Oswald:wght@200..700&family=Plus+Jakarta+Sans:wght@200..800&display=swap');

/* Custom styles */
:root {
  --font-heading: 'Oswald', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  --font-accent: 'DM Sans', sans-serif;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Theme variables */
:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-card: #474040;
  --bg-opaque: #ffffff;
  --text-primary: #1e293b;
  --text-secondary: #0e0f0f;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --border: #e2e8f0;
  --gradient-start: #3b82f6;
  --gradient-end: #2563eb;
}

/* Dark theme */
.dark {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #474040;
  --bg-opaque: #1e293b;
  --text-primary: #f1f5f9;
  --text-secondary: #152e52;
  --accent: #60a5fa;
  --accent-hover: #3b82f6;
  --border: #334155;
  --gradient-start: #60a5fa;
  --gradient-end: #3b82f6;
}

/* Opaque background for theme toggling */
.opaque-bg {
  background-color: var(--bg-opaque) !important;
}

/* Custom components */
.btn-primary {
  @apply bg-blue-600 hover:bg-blue-700 text-white font-medium py-2 px-4 rounded-lg transition-colors duration-200 shadow-md;
  background-image: linear-gradient(45deg, var(--gradient-start), var(--gradient-end));
  box-shadow: 0 4px 15px var(--accent);
  transition: background-image 0.3s ease, box-shadow 0.3s ease;
}

.btn-primary:hover {
  background-image: linear-gradient(45deg, var(--gradient-end), var(--gradient-start));
  box-shadow: 0 6px 20px var(--accent-hover);
}

.btn-secondary {
  @apply bg-gray-200 hover:bg-gray-300 text-gray-800 font-medium py-2 px-4 rounded-lg transition-colors duration-200;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.dark .btn-secondary {
  @apply bg-gray-700 hover:bg-gray-600 text-gray-200;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.input-field {
  @apply w-full px-3 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent;
  transition: box-shadow 0.3s ease;
}

.input-field:focus {
  box-shadow: 0 0 8px var(--accent);
}

.dark .input-field {
  @apply bg-gray-700 border-gray-600 text-white placeholder-gray-400;
}

/* Card style */
.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.card:hover {
  box-shadow: 0 8px 20px rgba(0,0,0,0.1);
  transform: translateY(-4px);
}

/* Section backgrounds */
.section-gradient {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  color: white;
  padding: 3rem 1rem;
  box-shadow: 0 8px 30px rgba(0,0,0,0.15);
  margin-bottom: 2rem;
}

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

.animate-fadeInUp {
  animation: fadeInUp 0.6s ease forwards;
}

/* Theme toggle button */
.theme-toggle {
  background: none;
  border: 2px solid var(--accent);
  color: var(--accent);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s ease, color 0.3s ease;
  user-select: none;
}

.theme-toggle:hover {
  background-color: var(--accent);
  color: white;
  border-color: var(--accent-hover);
}

/* Utility for spacing */
.mb-10 {
  margin-bottom: 2.5rem;
}

.mt-10 {
  margin-top: 2.5rem;
}

.text-gradient {
  background: linear-gradient(45deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Footer style */
footer {
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--text-primary);
  background-color: var(--bg-secondary);
  border-top: 0px solid var(--border);
  padding: 1rem 0;
  user-select: none;
}

/* Sidebar background */
.sidebar-bg {
  background-color: var(--bg-secondary) !important;
}