/* ==========================================================================
   Custom Properties - Warm, Homely Color Palette
   ========================================================================== */
:root {
  /* Primary Colors - Warm earth tones */
  --primary: #8B4513;              /* Saddle brown - warm and inviting */
  --primary-light: #A0522D;        /* Sienna - lighter brown */
  --primary-dark: #654321;         /* Dark brown */
  --primary-gradient: linear-gradient(135deg, #A0522D 0%, #8B4513 100%);
  
  /* Accent Colors - Cozy complementary tones */
  --accent: #D2691E;               /* Chocolate - warm orange-brown */
  --accent-light: #E07B39;         /* Lighter chocolate */
  --accent-dark: #B8531A;          /* Darker chocolate */
  
  /* Neutral Colors */
  --background: #FFF8F0;           /* Warm cream background */
  --background-alt: #F5E6D3;       /* Soft beige background */
  --background-card: #FFFBF5;      /* Slightly warmer card background */
  
  /* Text Colors */
  --text-primary: #3E2723;         /* Dark brown for text */
  --text-secondary: #6D4C41;       /* Medium brown */
  --text-muted: #8D6E63;           /* Light brown */
  
  /* Border & Shadow */
  --border: #E0D5C7;               /* Warm border */
  --border-dark: #D7C9B8;          /* Darker warm border */
  --shadow-sm: 0 1px 2px 0 rgba(62, 39, 35, 0.05);
  --shadow: 0 4px 6px -1px rgba(62, 39, 35, 0.1), 0 2px 4px -1px rgba(62, 39, 35, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(62, 39, 35, 0.1), 0 4px 6px -2px rgba(62, 39, 35, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(62, 39, 35, 0.1), 0 10px 10px -5px rgba(62, 39, 35, 0.04);
  
  /* Success/Error States */
  --success: #2E7D32;              /* Forest green */
  --error: #C62828;                /* Warm red */
  --warning: #EF6C00;              /* Warm orange */
  
  /* Spacing Scale (mobile-first) */
  --space-xs: 0.25rem;             /* 4px */
  --space-sm: 0.5rem;              /* 8px */
  --space-md: 1rem;                /* 16px */
  --space-lg: 1.5rem;              /* 24px */
  --space-xl: 2rem;                /* 32px */
  --space-2xl: 3rem;               /* 48px */
  
  /* Border Radius */
  --radius-sm: 0.375rem;           /* 6px */
  --radius: 0.5rem;                /* 8px */
  --radius-lg: 0.75rem;            /* 12px */
  --radius-xl: 1rem;               /* 16px */
  
  /* Transitions */
  --transition: all 0.2s ease-in-out;
  --transition-slow: all 0.3s ease-in-out;
}

/* ==========================================================================
   Base Styles - Mobile First
   ========================================================================== */
* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  padding: 0;
  padding-bottom: 60px;
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ==========================================================================
   Typography - Mobile First
   ========================================================================== */
h1, h2, h3, h4, h5, h6, .display-1, .display-2, .display-3, .display-4, .display-5, .display-6 {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.2;
  margin-top: 0;
  margin-bottom: var(--space-md);
}

h1 { font-size: 2rem; }        /* 32px on mobile */
h2 { font-size: 1.5rem; }      /* 24px on mobile */
h3 { font-size: 1.25rem; }     /* 20px on mobile */
h4 { font-size: 1.125rem; }    /* 18px on mobile */
h5 { font-size: 1rem; }        /* 16px on mobile */
h6 { font-size: 0.875rem; }    /* 14px on mobile */

/* Desktop typography */
@media (min-width: 768px) {
  h1 { font-size: 2.5rem; }    /* 40px on desktop */
  h2 { font-size: 2rem; }      /* 32px on desktop */
  h3 { font-size: 1.75rem; }   /* 28px on desktop */
  h4 { font-size: 1.5rem; }    /* 24px on desktop */
}

.display-4 {
  font-size: 2.5rem;
  font-weight: 700;
}

@media (min-width: 768px) {
  .display-4 {
    font-size: 3.5rem;
  }
}

.lead {
  font-size: 1.125rem;
  color: var(--text-secondary);
  font-weight: 400;
}

p {
  margin-top: 0;
  margin-bottom: var(--space-md);
}

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

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

/* ==========================================================================
   Navigation Bar - Mobile First
   ========================================================================== */
.navbar {
  border-bottom: none;
  box-shadow: var(--shadow);
  padding: var(--space-md) 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
}

.navbar-brand {
  color: white !important;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.navbar-brand:hover {
  color: white !important;
  opacity: 0.9;
  transform: translateY(-1px);
  text-decoration: none;
}

.navbar-brand i {
  font-size: 1.5rem;
}

/* Mobile navigation */
.navbar-toggler {
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius);
  padding: var(--space-sm);
  transition: var(--transition);
}

.navbar-toggler:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.25);
  outline: none;
}

.navbar-toggler-icon {
  filter: brightness(0) invert(1);
}

/* Navigation links */
.navbar-nav {
  gap: var(--space-xs);
}

.navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.9) !important;
  font-weight: 500;
  padding: var(--space-sm) var(--space-md);
  transition: var(--transition);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.navbar-nav .nav-link:hover {
  background-color: rgba(255, 255, 255, 0.15);
  color: white !important;
  transform: translateY(-1px);
  text-decoration: none;
}

.navbar-nav .nav-link.active {
  font-weight: 600;
  background-color: rgba(255, 255, 255, 0.2);
  color: white !important;
  box-shadow: var(--shadow-sm);
}

.nav-link.text-muted {
  color: rgba(255, 255, 255, 0.7) !important;
}

.nav-link i {
  font-size: 1.125rem;
}

/* Desktop navigation improvements */
@media (min-width: 768px) {
  .navbar {
    padding: var(--space-lg) 0;
  }
  
  .navbar-brand {
    font-size: 1.5rem;
  }
  
  .navbar-nav {
    gap: var(--space-sm);
  }
  
  .navbar-collapse {
    justify-content: space-between;
  }
}

/* ==========================================================================
   Buttons - Mobile First
   ========================================================================== */
.btn {
  border-radius: var(--radius);
  font-weight: 500;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  border: none;
  padding: var(--space-sm) var(--space-lg);
  font-size: 0.875rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  cursor: pointer;
  line-height: 1.5;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn:active {
  transform: translateY(0);
}

.btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.3);
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: 1rem;
  border-radius: var(--radius-lg);
}

.btn-primary {
  color: white;
  border: none;
}

.btn-primary:hover {
  color: white;
}

.btn-outline-primary {
  border: 2px solid var(--primary);
  color: var(--primary);
}

.btn-outline-primary:hover {
  border-color: var(--primary);
  color: white;
}

.btn-secondary {
  color: white;
  border: none;
}

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

.btn-warning {
  color: white;
  border: none;
}

.btn-warning:hover {
  color: white;
}

.btn i {
  font-size: 1.125rem;
}

/* Button group spacing */
.d-grid {
  display: grid;
  width: 100%;
}

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

@media (min-width: 768px) {
  .btn {
    font-size: 1rem;
    padding: var(--space-md) var(--space-xl);
  }
}

/* ==========================================================================
   Cards - Mobile First
   ========================================================================== */
.card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: var(--transition-slow);
  overflow: hidden;
  margin-bottom: var(--space-lg);
}

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

.card-header {
  color: white;
  border-bottom: none;
  font-weight: 600;
  padding: var(--space-md) var(--space-lg);
  font-size: 1rem;
}

.card-body {
  padding: var(--space-lg);
}

.card-title {
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: var(--space-md);
  font-size: 1.125rem;
}

.card-text {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.card-footer {
  background-color: var(--background-alt);
  border-top: 1px solid var(--border);
  padding: var(--space-md) var(--space-lg);
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Ensure cards have full height in grid */
.card.h-100 {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card.h-100 .card-body {
  flex: 1;
}

@media (min-width: 768px) {
  .card-header {
    padding: var(--space-lg) var(--space-xl);
    font-size: 1.125rem;
  }
  
  .card-body {
    padding: var(--space-xl);
  }
  
  .card-title {
    font-size: 1.25rem;
  }
}

/* ==========================================================================
   Forms - Mobile First
   ========================================================================== */
.form-control {
  border: 2px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
  background-color: white;
  padding: var(--space-md);
  font-size: 1rem;
  color: var(--text-primary);
  width: 100%;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
  background-color: white;
  outline: none;
}

.form-control::placeholder {
  color: var(--text-muted);
}

.form-control-lg {
  padding: var(--space-lg);
  font-size: 1.125rem;
  border-radius: var(--radius-lg);
}

.form-label {
  color: var(--text-primary);
  font-weight: 500;
  margin-bottom: var(--space-sm);
  display: block;
  font-size: 0.875rem;
}

.form-check {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0;
}

.form-check-input {
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  margin: 0;
}

.form-check-input:checked {
  background-color: var(--primary);
  border-color: var(--primary);
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23fff' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M6 10l3 3l6-6'/%3e%3c/svg%3e");
}

.form-check-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
  outline: none;
}

.form-check-label {
  cursor: pointer;
  color: var(--text-primary);
  font-size: 0.875rem;
  margin: 0;
}

.form-floating > .form-control::placeholder {
  color: transparent;
}

.form-floating > label {
  padding: var(--space-md);
}

/* Form validation states */
.is-invalid {
  border-color: var(--error) !important;
}

.is-valid {
  border-color: var(--success) !important;
}

@media (min-width: 768px) {
  .form-label {
    font-size: 1rem;
  }
  
  .form-check-label {
    font-size: 1rem;
  }
}

/* ==========================================================================
   Alerts - Mobile First
   ========================================================================== */
.alert {
  border-radius: var(--radius-lg);
  border: 1px solid;
  box-shadow: var(--shadow-sm);
  padding: var(--space-md) var(--space-lg);
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
}

.alert i {
  font-size: 1.25rem;
  flex-shrink: 0;
  margin-top: 0.125rem;
}

.alert-warning {
  background-color: #fef3c7;
  color: #92400e;
  border-color: #fcd34d;
}

.alert-danger {
  background-color: #fee2e2;
  color: #991b1b;
  border-color: #fca5a5;
}

.alert-success {
  background-color: #d1fae5;
  color: #065f46;
  border-color: #6ee7b7;
}

.alert-info {
  background-color: #dbeafe;
  color: #1e40af;
  border-color: #93c5fd;
}

@media (min-width: 768px) {
  .alert {
    padding: var(--space-lg) var(--space-xl);
  }
}

/* ==========================================================================
   Alerts - Mobile First
   ========================================================================== */
.breadcrumb {
  background-color: var(--background-alt);
  border-radius: var(--radius);
  padding: var(--space-md);
  margin-bottom: var(--space-lg);
  font-size: 0.875rem;
}

.breadcrumb-item {
  display: inline-flex;
  align-items: center;
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  padding: 0 var(--space-sm);
  color: var(--text-muted);
}

.breadcrumb-item a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.breadcrumb-item a:hover {
  color: var(--primary-dark);
  text-decoration: none;
}

.breadcrumb-item.active {
  color: var(--text-secondary);
}

@media (min-width: 768px) {
  .breadcrumb {
    padding: var(--space-md) var(--space-lg);
    font-size: 1rem;
  }
}

/* ==========================================================================
   Content Sections - Mobile First
   ========================================================================== */
.container {
  padding-left: var(--space-md);
  padding-right: var(--space-md);
  max-width: 100%;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 768px) {
  .container {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }
}

@media (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }
}

.content {
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  margin: var(--space-lg) 0;
  line-height: 1.7;
}

.content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  margin: var(--space-lg) 0;
}

.content h1,
.content h2,
.content h3,
.content h4,
.content h5,
.content h6 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
}

.content h1:first-child,
.content h2:first-child,
.content h3:first-child {
  margin-top: 0;
}

@media (min-width: 768px) {
  .content {
    padding: var(--space-2xl);
  }
}

/* ==========================================================================
   Login Page - Mobile First
   ========================================================================== */
.shadow-sm {
  box-shadow: var(--shadow) !important;
}

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

/* Login card enhancement */
.login-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

@media (max-width: 767px) {
  /* Make login form full width on mobile with padding */
  .row.justify-content-center > div {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }
}

/* ==========================================================================
   Utility Classes - Mobile First
   ========================================================================== */
.text-muted {
  color: var(--text-muted) !important;
}

.text-muted-custom {
  color: var(--text-secondary);
}

.text-primary-warm {
  color: var(--primary);
}

.text-center {
  text-align: center;
}

/* Spacing utilities */
.my-5 {
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.mt-3 { margin-top: var(--space-lg); }
.mt-4 { margin-top: var(--space-xl); }
.mt-5 { margin-top: var(--space-2xl); }
.mb-2 { margin-bottom: var(--space-sm); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }
.mb-5 { margin-bottom: var(--space-2xl); }

.p-5 {
  padding: var(--space-2xl);
}

/* Border utilities */
.border-bottom {
  border-bottom: 1px solid var(--border) !important;
}

.border-top {
  border-top: 1px solid var(--border) !important;
}

/* Icon sizes */
.icon-large {
  font-size: 2.5rem;
  color: var(--primary);
}

.icon-xlarge {
  font-size: 3rem;
  color: var(--primary);
}

.icon-xxlarge {
  font-size: 3.5rem;
  color: var(--primary);
}

/* Display utilities */
.d-none {
  display: none;
}

.d-block {
  display: block;
}

.d-flex {
  display: flex;
}

@media (min-width: 768px) {
  .icon-large { font-size: 3rem; }
  .icon-xlarge { font-size: 3.5rem; }
  .icon-xxlarge { font-size: 4rem; }
}

/* ==========================================================================
   Animations - Subtle and Modern
   ========================================================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Subtle fade-in for main content */
main > .container > .row,
main > .container > .card,
main > .container > article,
main > .container > nav {
  animation: fadeIn 0.4s ease-out;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ==========================================================================
   Side Navigation - Mobile First
   ========================================================================== */
.side-navigation {
  margin-bottom: var(--space-lg);
}

@media (min-width: 768px) {
  .side-navigation {
    position: sticky;
    top: 100px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    margin-bottom: 0;
  }
}

.side-navigation .card {
  border: 1px solid var(--border);
}

.side-navigation .card-header {
  color: white;
  font-size: 1rem;
  font-weight: 600;
  padding: var(--space-md) var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.side-navigation .list-group-item {
  border: none;
  border-left: 3px solid transparent;
  padding: var(--space-md) var(--space-lg);
  margin: 0;
  transition: var(--transition);
  background-color: transparent;
  color: var(--text-primary);
  font-weight: 500;
  cursor: pointer;
}

.side-navigation .list-group-item:hover {
  border-left-color: var(--primary-light);
  padding-left: calc(var(--space-lg) + 4px);
  color: var(--primary);
}

.side-navigation .list-group-item.active {
  border-left-color: var(--primary);
  color: var(--primary);
  font-weight: 600;
}

.side-navigation .list-group-item.active:hover {
  padding-left: var(--space-lg);
}

/* Custom scrollbar */
.side-navigation::-webkit-scrollbar {
  width: 6px;
}

.side-navigation::-webkit-scrollbar-track {
  background: var(--background-alt);
  border-radius: var(--radius);
}

.side-navigation::-webkit-scrollbar-thumb {
  background: var(--border-dark);
  border-radius: var(--radius);
}

/* ==========================================================================
   Responsive Grid Adjustments - Mobile First
   ========================================================================== */
.row {
  margin-left: calc(var(--space-md) * -1);
  margin-right: calc(var(--space-md) * -1);
}

.row > * {
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

@media (min-width: 768px) {
  .row {
    margin-left: calc(var(--space-lg) * -1);
    margin-right: calc(var(--space-lg) * -1);
  }
  
  .row > * {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }
}

/* Column margins for mobile */
.col-md-6,
.col-md-3,
.col-md-9,
.col-lg-5 {
  margin-bottom: var(--space-lg);
}

@media (min-width: 768px) {
  .col-md-6:last-child,
  .col-md-3:last-child,
  .col-md-9:last-child {
    margin-bottom: 0;
  }
}

/* Ensure proper spacing */
.mb-4 {
  margin-bottom: var(--space-xl) !important;
}

/* Text alignment utilities */
.text-center {
  text-align: center;
}

/* Gap utilities for flexbox */
.gap-2 {
  gap: var(--space-sm);
}

/* Justify content */
.justify-content-center {
  justify-content: center;
}

.justify-content-between {
  justify-content: space-between;
}