/**
 * OversizeOps Main Stylesheet
 * 
 * Primary stylesheet that imports all CSS modules
 * 
 * @package OversizeOps\Foundation\UI
 * @version 1.0
 */

/* Import Order: Variables → Reset → Layout → Components → Responsive */
@import url('variables.css');
@import url('reset.css');
@import url('layout.css');
@import url('components.css');
@import url('responsive.css');

/* ===================================
   GLOBAL STYLES
   =================================== */
body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1 0 auto;
}

/* ===================================
   HEADER & NAVIGATION
   =================================== */
.site-header {
  background-color: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.site-header nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-4) 0;
}

.site-logo {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.site-logo:hover {
  color: var(--color-primary-dark);
  text-decoration: none;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-6);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  color: var(--color-text-primary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-fast);
  padding: var(--spacing-2) var(--spacing-3);
  border-radius: var(--radius-md);
}

.nav-link:hover {
  color: var(--color-primary);
  text-decoration: none;
  background-color: var(--color-bg-secondary);
}

.nav-link.active {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

/* ===================================
   FOOTER
   =================================== */
.site-footer {
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border-light);
  padding: var(--spacing-8) 0;
  margin-top: var(--spacing-16);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-8);
}

.footer-section h4 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-3);
  color: var(--color-text-primary);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--spacing-2);
}

.footer-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--font-size-sm);
}

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

.footer-bottom {
  margin-top: var(--spacing-8);
  padding-top: var(--spacing-4);
  border-top: 1px solid var(--color-border-light);
  text-align: center;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

/* ===================================
   PAGE SECTIONS
   =================================== */
.section {
  padding: var(--spacing-16) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-8);
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-3);
  color: var(--color-text-primary);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 700px;
  margin: 0 auto;
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  padding: var(--spacing-20) 0;
  text-align: center;
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-4);
  line-height: var(--line-height-tight);
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-8);
  opacity: 0.95;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ===================================
   FEATURE CARDS
   =================================== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-6);
}

.feature-card {
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--spacing-6);
  text-align: center;
  transition: all var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 60px;
  height: 60px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  margin: 0 auto var(--spacing-4);
}

.feature-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-3);
}

.feature-description {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* ===================================
   DASHBOARD LAYOUT
   =================================== */
.dashboard-container {
  display: flex;
  min-height: 100vh;
}

.dashboard-sidebar {
  width: 280px;
  background-color: var(--color-bg-primary);
  border-right: 1px solid var(--color-border-light);
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: var(--z-fixed);
}

.dashboard-main {
  flex: 1;
  margin-left: 280px;
  background-color: var(--color-bg-secondary);
  min-height: 100vh;
  padding: var(--spacing-6);
}

.dashboard-header {
  background-color: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border-light);
  padding: var(--spacing-4);
  margin: calc(var(--spacing-6) * -1) calc(var(--spacing-6) * -1) var(--spacing-6);
}

.dashboard-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin: 0;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-6);
  margin-bottom: var(--spacing-6);
}

.stat-card {
  background-color: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-6);
  box-shadow: var(--shadow-base);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-2);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: var(--font-weight-medium);
}

.stat-value {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

/* ===================================
   AUTHENTICATION PAGES
   =================================== */
.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg-secondary);
  padding: var(--spacing-4);
}

.auth-card {
  width: 100%;
  max-width: 450px;
  background-color: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--spacing-8);
}

.auth-header {
  text-align: center;
  margin-bottom: var(--spacing-6);
}

.auth-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-2);
}

.auth-subtitle {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
}

.auth-divider {
  text-align: center;
  margin: var(--spacing-6) 0;
  position: relative;
}

.auth-divider::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background-color: var(--color-border-light);
}

.auth-divider span {
  background-color: var(--color-bg-primary);
  padding: 0 var(--spacing-4);
  position: relative;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.auth-footer {
  margin-top: var(--spacing-6);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.auth-footer a {
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
}

/* ===================================
   UTILITY ANIMATIONS
   =================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideInUp {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.animate-fade-in {
  animation: fadeIn 0.3s ease-in-out;
}

.animate-slide-up {
  animation: slideInUp 0.4s ease-out;
}

/* ===================================
   SCROLLBAR STYLING
   =================================== */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background-color: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
  background-color: var(--color-border-dark);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background-color: var(--color-text-tertiary);
}

/* ===================================
   FOCUS VISIBLE (Better Accessibility)
   =================================== */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}