/**
 * Central Theme System for Project Thoth
 *
 * This file contains all reusable, theme-aware, responsive CSS classes.
 * Components should use these classes instead of custom styles where possible.
 */

/* ============================================
   LAYOUT UTILITIES - RESPONSIVE GRIDS
   ============================================ */

/* Responsive Grid - Automatically adjusts columns based on screen size */
.grid-responsive {
  display: grid;
  gap: var(--spacing-md);
}

/* Mobile: 1 column, Tablet: 2 columns, Desktop: 3+ columns */
.grid-auto {
  display: grid;
  gap: var(--spacing-md);
  grid-template-columns: 1fr;  /* Default to single column */
}

/* Stats grid - always fills available space */
.grid-stats {
  display: grid;
  gap: var(--spacing-md);
  grid-template-columns: 1fr;  /* Default to single column */
}

/* Force specific column counts */
.grid-1 { grid-template-columns: 1fr; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ============================================
   FLEXBOX UTILITIES - RESPONSIVE
   ============================================ */

.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}
.flex-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.flex-start {
  display: flex;
  justify-content: flex-start;
  align-items: center;
}
.flex-end {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

/* Stack on mobile, horizontal on desktop */
.flex-responsive {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

/* ============================================
   SPACING UTILITIES
   ============================================ */

/* Gaps */
.gap-xs { gap: var(--spacing-xs); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

/* Padding */
.p-0 { padding: 0; }
.p-xs { padding: var(--spacing-xs); }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

/* Margin */
.m-0 { margin: 0; }
.m-xs { margin: var(--spacing-xs); }
.m-sm { margin: var(--spacing-sm); }
.m-md { margin: var(--spacing-md); }
.m-lg { margin: var(--spacing-lg); }
.m-xl { margin: var(--spacing-xl); }

/* Margin/Padding specific sides */
.mt-md { margin-top: var(--spacing-md); }
.mb-md { margin-bottom: var(--spacing-md); }
.ml-md { margin-left: var(--spacing-md); }
.mr-md { margin-right: var(--spacing-md); }

.pt-md { padding-top: var(--spacing-md); }
.pb-md { padding-bottom: var(--spacing-md); }
.pl-md { padding-left: var(--spacing-md); }
.pr-md { padding-right: var(--spacing-md); }

/* ============================================
   CARD COMPONENTS - THEME AWARE
   ============================================ */

.card {
  background: var(--color-bg-card);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: box-shadow 0.2s ease;
}

.card:hover {
  box-shadow: var(--shadow-lg);
}

.card-sm {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-sm);
}

.card-secondary {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

/* Status border variants */
.card-success { border-left: 4px solid var(--color-success); }
.card-warning { border-left: 4px solid var(--color-warning); }
.card-error { border-left: 4px solid var(--color-error); }
.card-info { border-left: 4px solid var(--color-info); }

/* ============================================
   BUTTON COMPONENTS - THEME AWARE
   ============================================ */

.btn {
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
}

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

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Button variants */
.btn-primary {
  background: var(--gradient-primary);
  color: white;
  border: none;
}

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

.btn-success:hover:not(:disabled) {
  background: var(--color-success-dark);
}

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

.btn-error:hover:not(:disabled) {
  background: var(--color-error-dark);
}

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

.btn-info:hover:not(:disabled) {
  background: var(--color-info-dark);
}

.btn-secondary {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
  border: 2px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-bg-primary);
  border-color: var(--color-primary);
}

.btn-secondary.active {
  background: var(--gradient-primary);
  color: white;
  border-color: var(--color-primary);
}

/* Button sizes */
.btn-sm {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
}

/* ============================================
   FORM COMPONENTS - THEME AWARE
   ============================================ */

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-input);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
  font-family: inherit;
}

/* Form layouts */
.form-row {
  display: grid;
  gap: var(--spacing-md);
  grid-template-columns: 1fr;
}

/* ============================================
   TEXT UTILITIES
   ============================================ */

.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }

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

.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-error { color: var(--color-error); }
.text-info { color: var(--color-info); }

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

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-normal { font-weight: 400; }

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */

/* Show/Hide based on screen size */
.mobile-only { display: none; }
.desktop-only { display: block; }

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

/* Height utilities */
.h-full { height: 100%; }
.h-auto { height: auto; }

/* ============================================
   MOBILE BREAKPOINTS (≤480px)
   ============================================ */

@media (max-width: 480px) {
  /* Show/Hide */
  .mobile-only { display: block; }
  .desktop-only { display: none; }

  /* Grids already default to 1fr, just ensure it stays that way */
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr !important;
  }

  /* Stack flex items vertically */
  .flex-responsive {
    flex-direction: column;
  }

  /* Buttons take full width */
  .btn-mobile-full {
    width: 100%;
    min-width: 100%;
  }

  /* Reduce card padding on mobile */
  .card {
    padding: var(--spacing-md);
  }

  .card-sm {
    padding: var(--spacing-sm);
  }

  /* Allow text wrapping on mobile */
  .btn {
    white-space: normal;
    text-align: center;
  }
}

/* ============================================
   TABLET BREAKPOINTS (481px - 768px)
   ============================================ */

@media (min-width: 481px) and (max-width: 768px) {
  /* 2-column layouts on tablets */
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .form-row {
    grid-template-columns: 1fr 1fr;
  }
}

/* ============================================
   DESKTOP BREAKPOINTS (769px - 1024px)
   ============================================ */

@media (min-width: 769px) and (max-width: 1024px) {
  .grid-auto {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .grid-4 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================
   LARGE DESKTOP (≥1025px)
   ============================================ */

@media (min-width: 1025px) {
  .grid-auto {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }

  .grid-stats {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }

  .form-row {
    grid-template-columns: 1fr 1fr;
  }
}

/* ============================================
   STATUS & STATE UTILITIES
   ============================================ */

.status-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
}

.status-success {
  background: var(--color-success-bg);
  color: var(--color-success-dark);
  border: 1px solid var(--color-success-border);
}

.status-warning {
  background: var(--color-warning-bg);
  color: var(--color-warning-dark);
  border: 1px solid var(--color-warning-border);
}

.status-error {
  background: var(--color-error-bg);
  color: var(--color-error-dark);
  border: 1px solid var(--color-error-border);
}

.status-info {
  background: var(--color-info-bg);
  color: var(--color-info-dark);
  border: 1px solid var(--color-info-border);
}

/* ============================================
   ANIMATION UTILITIES
   ============================================ */

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

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.slide-up {
  animation: slideUp 0.3s ease-out;
}

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

/* ============================================
   LOADING UTILITIES
   ============================================ */

.spinner {
  border: 3px solid var(--color-border);
  border-top: 3px solid var(--color-primary);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 0 auto;
}

.spinner-sm {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ============================================
   DIVIDER
   ============================================ */

.divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--spacing-lg) 0;
}

.divider-md {
  margin: var(--spacing-md) 0;
}