/**
 * Odland.Web Theme System
 * Light and Dark Mode with Mobile-First Approach
 */

:root {
  /* Base Colors - Light Mode */
  --color-primary: #2563eb;
  --color-primary-light: #3b82f6;
  --color-primary-dark: #1d4ed8;
  --color-secondary: #64748b;
  --color-accent: #f59e0b;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  
  /* Neutral Colors - Light Mode */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f8fafc;
  --color-bg-tertiary: #f1f5f9;
  --color-border: #e2e8f0;
  --color-text-primary: #0f172a;
  --color-text-secondary: #475569;
  --color-text-tertiary: #94a3b8;
  
  /* UI Elements - Light Mode */
  --color-header-bg: #ffffff;
  --color-header-text: #0f172a;
  --color-footer-bg: #f1f5f9;
  --color-footer-text: #64748b;
  --color-card-bg: #ffffff;
  --color-card-shadow: rgba(0, 0, 0, 0.05);
  --color-nav-active: #2563eb;
  
  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-serif: Georgia, 'Times New Roman', serif;
  --font-mono: 'SF Mono', Monaco, Consolas, 'Liberation Mono', monospace;
  
  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.125rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
  
  /* Theme Transition */
  --theme-transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

/* Dark Mode Theme */
[data-theme="dark"] {
  /* Base Colors - Dark Mode */
  --color-primary: #3b82f6;
  --color-primary-light: #60a5fa;
  --color-primary-dark: #2563eb;
  --color-secondary: #94a3b8;
  --color-accent: #f59e0b;
  --color-success: #10b981;
  --color-warning: #fbbf24;
  --color-error: #f87171;
  
  /* Neutral Colors - Dark Mode */
  --color-bg-primary: #0f172a;
  --color-bg-secondary: #1e293b;
  --color-bg-tertiary: #334155;
  --color-border: #334155;
  --color-text-primary: #f8fafc;
  --color-text-secondary: #cbd5e1;
  --color-text-tertiary: #94a3b8;
  
  /* UI Elements - Dark Mode */
  --color-header-bg: #1e293b;
  --color-header-text: #f8fafc;
  --color-footer-bg: #0f172a;
  --color-footer-text: #94a3b8;
  --color-card-bg: #1e293b;
  --color-card-shadow: rgba(0, 0, 0, 0.3);
  --color-nav-active: #3b82f6;
}

/* Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.5;
  transition: var(--theme-transition);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin-bottom: var(--space-4);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-text-primary);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--space-4);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* Layout */
.container {
  width: 100%;
  padding-right: var(--space-4);
  padding-left: var(--space-4);
  margin-right: auto;
  margin-left: auto;
}

@media (min-width: 640px) {
  .container {
    max-width: 640px;
  }
}

@media (min-width: 768px) {
  .container {
    max-width: 768px;
  }
}

@media (min-width: 1024px) {
  .container {
    max-width: 1024px;
  }
}

@media (min-width: 1280px) {
  .container {
    max-width: 1280px;
  }
}

/* Header */
.site-header {
  background-color: var(--color-header-bg);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--theme-transition);
  border-bottom: 1px solid var(--color-border);
}

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

.site-brand {
  display: flex;
  align-items: center;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
  text-decoration: none;
}

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

.site-brand img {
  height: 2.5rem;
  width: auto;
  margin-right: var(--space-2);
}

/* Navigation */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text-primary);
  transition: var(--transition-fast);
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.nav-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-bg-primary);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
  z-index: 1000;
}

.nav-menu.active {
  display: block;
}

.nav-list {
  list-style: none;
  padding: var(--space-2) 0;
  margin: 0;
}

.nav-item {
  margin: 0;
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: var(--transition-fast);
  gap: var(--space-2);
}

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

.nav-link.active {
  color: var(--color-nav-active);
  font-weight: 600;
}

.menu-icon,
.user-icon,
.admin-icon,
.login-icon,
.register-icon,
.logout-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

.logout-button {
  background: none;
  border: none;
  cursor: pointer;
  width: 100%;
  text-align: left;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Submenu styles */
.submenu {
  list-style: none;
  padding: 0;
  margin: 0;
  background-color: var(--color-bg-secondary);
  border-left: 2px solid var(--color-primary);
}

@media (max-width: 767px) {
  .submenu {
    padding-left: var(--space-4);
  }
  
  .nav-menu {
    max-height: 80vh;
    overflow-y: auto;
  }
}

@media (min-width: 768px) {
  .nav-item:hover .submenu {
    display: block;
  }
  
  .submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    box-shadow: var(--shadow-md);
    border-left: none;
    border-top: 2px solid var(--color-primary);
    z-index: 101;
  }
}

/* Theme Toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-text-primary);
  transition: var(--transition-fast);
}

.theme-toggle:hover {
  background-color: var(--color-bg-tertiary);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* Main Content */
main {
  flex: 1;
  padding: var(--space-6) 0;
  width: 100%;
}

/* Footer */
.site-footer {
  background-color: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: var(--space-6) 0;
  transition: var(--theme-transition);
  border-top: 1px solid var(--color-border);
}

/* Cards */
.card {
  background-color: var(--color-card-bg);
  border-radius: var(--radius-lg);
  box-shadow: 0 1px 3px var(--color-card-shadow);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
  transition: var(--theme-transition);
}

.card-header {
  margin-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-3);
}

.card-title {
  margin-bottom: var(--space-2);
  font-size: 1.25rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2) var(--space-4);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
  vertical-align: middle;
  cursor: pointer;
  user-select: none;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: white;
  text-decoration: none;
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: white;
}

.btn-secondary:hover {
  background-color: var(--color-secondary);
  opacity: 0.9;
  color: white;
  text-decoration: none;
}

.btn-outline {
  background-color: transparent;
  border-color: var(--color-border);
  color: var(--color-text-primary);
}

.btn-outline:hover {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  text-decoration: none;
}

/* Forms */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 500;
}

.form-control {
  display: block;
  width: 100%;
  padding: var(--space-2) var(--space-3);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  background-clip: padding-box;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.form-control:focus {
  border-color: var(--color-primary);
  outline: 0;
  box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.25);
}

/* Utilities */
.d-flex { display: flex; }
.flex-column { flex-direction: column; }
.flex-row { flex-direction: row; }
.justify-content-between { justify-content: space-between; }
.justify-content-center { justify-content: center; }
.align-items-center { align-items: center; }
.text-center { text-align: center; }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }

/* Responsive Utilities */
@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }
  
  .nav-menu {
    display: flex !important;
    position: static;
    box-shadow: none;
    border: none;
    background-color: transparent;
  }
  
  .nav-list {
    display: flex;
    padding: 0;
  }
  
  .nav-link {
    padding: var(--space-2) var(--space-3);
  }
  
  .d-md-flex { display: flex; }
  .d-md-block { display: block; }
  .d-md-none { display: none; }
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.focus-visible:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Skip to content link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: 8px;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

/* Print styles */
@media print {
  .site-header,
  .site-footer,
  .theme-toggle {
    display: none;
  }
  
  body {
    background-color: white;
    color: black;
  }
  
  .container {
    max-width: 100%;
    padding: 0;
  }
  
  a {
    text-decoration: underline;
    color: #000;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #ddd;
  }
}
/* ==========================================================================
   ENHANCED UTILITIES
   ========================================================================== */

/* Spacing Utilities */
.p-0 {
    padding: 0;
}

.p-1 {
    padding: var(--space-1);
}

.p-2 {
    padding: var(--space-2);
}

.p-3 {
    padding: var(--space-3);
}

.p-4 {
    padding: var(--space-4);
}

.m-0 {
    margin: 0;
}

.m-1 {
    margin: var(--space-1);
}

.m-2 {
    margin: var(--space-2);
}

.m-3 {
    margin: var(--space-3);
}

.m-4 {
    margin: var(--space-4);
}

/* Width Utilities */
.w-full {
    width: 100%;
}

.w-auto {
    width: auto;
}

.min-w-0 {
    min-width: 0;
}

/* Grid Utilities */
.grid {
    display: grid;
}

.grid-cols-1 {
    grid-template-columns: repeat(1, 1fr);
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

.gap-1 {
    gap: var(--space-1);
}

.gap-2 {
    gap: var(--space-2);
}

.gap-3 {
    gap: var(--space-3);
}

.gap-4 {
    gap: var(--space-4);
}

/* Enhanced Button Styles */
.btn-sm {
    padding: var(--space-1) var(--space-3);
    font-size: 0.75rem;
}

.btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: 1.125rem;
}

/* Status Message Utilities */
.status-message {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
    font-size: 0.875rem;
}

.status-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

.status-error {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--color-error);
    border: 1px solid var(--color-error);
}

.status-info {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}