/* =====================================================
   Responsive Design - Mobile-First Approach
   Mindful Commitments Accountability App
   ===================================================== */

/* =====================================================
   Mobile-First Base Styles (320px+)
   Already defined in main stylesheet
   ===================================================== */

/* =====================================================
   Small Mobile Adjustments (375px+)
   ===================================================== */

@media (min-width: 375px) {
  .auth-container {
    max-width: 420px;
  }
  
  .content-area {
    padding: var(--space-8) var(--space-8);
  }
  
  .checklist-nav {
    gap: var(--space-3);
  }
  
  .nav-btn {
    padding: var(--space-4) var(--space-6);
  }
}

/* =====================================================
   Large Mobile / Small Tablet (480px+)
   ===================================================== */

@media (min-width: 480px) {
  .loading-title {
    font-size: var(--text-4xl);
  }
  
  .brand-title {
    font-size: clamp(var(--text-3xl), 5vw, var(--text-4xl));
  }
  
  .auth-form {
    padding: var(--space-12);
  }
  
  .checklist-item {
    padding: var(--space-8);
  }
  
  .item-header {
    align-items: center;
  }
  
  .item-actions {
    opacity: 0.7;
  }
  
  .checklist-item:hover .item-actions {
    opacity: 1;
  }
  
  .progress-card {
    padding: var(--space-10);
  }
  
  .modal-content {
    max-width: 560px;
  }
}

/* =====================================================
   Tablet Portrait (768px+)
   ===================================================== */

@media (min-width: 768px) {
  .main-nav {
    padding: var(--space-8) var(--space-8) 0;
  }
  
  .nav-header {
    margin-bottom: var(--space-8);
  }
  
  .nav-title {
    font-size: var(--text-3xl);
  }
  
  .content-area {
    padding: var(--space-12) var(--space-10);
    max-width: 900px;
  }
  
  .view-header {
    margin-bottom: var(--space-16);
    padding-bottom: var(--space-10);
  }
  
  .view-title {
    font-size: clamp(var(--text-3xl), 4vw, var(--text-4xl));
  }
  
  .view-subtitle {
    font-size: var(--text-xl);
    max-width: 600px;
  }
  
  .progress-overview {
    margin-bottom: var(--space-16);
  }
  
  .progress-card {
    padding: var(--space-12);
    max-width: 500px;
    margin: 0 auto;
  }
  
  .checklist-container {
    gap: var(--space-6);
  }
  
  .checklist-item {
    padding: var(--space-10);
  }
  
  .item-actions {
    opacity: 0;
  }
  
  /* Two-column layout for certain sections */
  .settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
  
  .values-grid {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--space-4);
  }
  
  /* Enhanced typography scaling */
  .item-title {
    font-size: var(--text-xl);
  }
  
  .item-description {
    font-size: var(--text-base);
  }
}

/* =====================================================
   Tablet Landscape / Small Desktop (1024px+)
   ===================================================== */

@media (min-width: 1024px) {
  .app-view {
    flex-direction: row;
  }
  
  .main-nav {
    width: 320px;
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    border-right: 1px solid var(--color-dust);
    border-bottom: none;
    padding: var(--space-10) var(--space-8);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-soft);
  }
  
  .nav-header {
    margin-bottom: var(--space-10);
  }
  
  .checklist-nav {
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: 0;
    overflow: visible;
  }
  
  .nav-btn {
    justify-content: flex-start;
    text-align: left;
    padding: var(--space-5) var(--space-6);
    border-radius: var(--border-radius);
    border-bottom: none;
    font-size: var(--text-base);
  }
  
  .nav-btn:hover {
    background-color: var(--color-whisper);
    border-radius: var(--border-radius);
  }
  
  .nav-btn.active {
    background-color: var(--color-sage);
    color: white;
    border-radius: var(--border-radius);
  }
  
  .content-area {
    margin-left: 320px;
    padding: var(--space-16) var(--space-12);
    max-width: none;
    width: calc(100% - 320px);
  }
  
  .user-menu {
    right: var(--space-12);
  }
  
  /* Enhanced spacing for desktop */
  .view-header {
    margin-bottom: var(--space-20);
    text-align: left;
  }
  
  .view-title {
    font-size: var(--text-4xl);
  }
  
  .view-subtitle {
    font-size: var(--text-xl);
    max-width: none;
    margin-left: 0;
  }
  
  .progress-overview {
    margin-bottom: var(--space-20);
  }
  
  .progress-card {
    max-width: none;
    text-align: left;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-8) var(--space-12);
  }
  
  .progress-info {
    flex: 1;
  }
  
  .progress-bar {
    width: 200px;
    margin: 0 var(--space-6);
  }
  
  .progress-text {
    white-space: nowrap;
  }
  
  /* Grid layout for checklist items on large screens */
  .checklist-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--space-8);
  }
  
  .checklist-item {
    height: fit-content;
  }
  
  /* Modal positioning for desktop */
  .modal-content {
    max-width: 600px;
  }
  
  /* Authentication centered better on desktop */
  .auth-view {
    padding: var(--space-12);
  }
  
  .auth-container {
    max-width: 480px;
  }
}

/* =====================================================
   Large Desktop (1280px+)
   ===================================================== */

@media (min-width: 1280px) {
  .main-nav {
    width: 360px;
  }
  
  .content-area {
    margin-left: 360px;
    width: calc(100% - 360px);
    padding: var(--space-20) var(--space-16);
    max-width: 1200px;
  }
  
  .nav-header {
    margin-bottom: var(--space-12);
  }
  
  .nav-title {
    font-size: var(--text-3xl);
  }
  
  .checklist-nav {
    gap: var(--space-3);
  }
  
  .nav-btn {
    padding: var(--space-6) var(--space-8);
    font-size: var(--text-lg);
  }
  
  .view-header {
    margin-bottom: var(--space-20);
  }
  
  .checklist-container {
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: var(--space-10);
  }
  
  .checklist-item {
    padding: var(--space-12);
  }
  
  .item-title {
    font-size: var(--text-2xl);
  }
  
  .progress-card {
    padding: var(--space-10) var(--space-16);
  }
  
  /* Three-column layout for settings */
  .settings-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .values-grid {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  }
}

/* =====================================================
   Extra Large Desktop (1440px+)
   ===================================================== */

@media (min-width: 1440px) {
  .content-area {
    max-width: 1400px;
    margin-left: 360px;
    margin-right: auto;
    padding: var(--space-20);
  }
  
  .view-header {
    text-align: center;
  }
  
  .view-subtitle {
    margin-left: auto;
    margin-right: auto;
    max-width: 700px;
  }
  
  .progress-card {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    flex-direction: column;
    gap: var(--space-6);
  }
  
  .progress-bar {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
  }
  
  .checklist-container {
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    max-width: 1200px;
    margin: 0 auto;
  }
}

/* =====================================================
   Ultra Wide Screens (1920px+)
   ===================================================== */

@media (min-width: 1920px) {
  .content-area {
    max-width: 1600px;
  }
  
  .checklist-container {
    grid-template-columns: repeat(auto-fit, minmax(550px, 1fr));
    max-width: 1400px;
  }
  
  .progress-card {
    max-width: 1000px;
  }
}

/* =====================================================
   Print Styles - Clean & Minimal
   ===================================================== */

@media print {
  .main-nav,
  .user-menu,
  .modal,
  .notification,
  .item-actions,
  .btn {
    display: none !important;
  }
  
  .app-view {
    flex-direction: column;
  }
  
  .content-area {
    margin-left: 0;
    width: 100%;
    padding: 0;
  }
  
  .checklist-container {
    display: block;
  }
  
  .checklist-item {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid var(--color-dust);
    margin-bottom: var(--space-4);
    padding: var(--space-6);
  }
  
  .view-title {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-8);
  }
  
  .progress-card {
    break-inside: avoid;
    margin-bottom: var(--space-8);
  }
}

/* =====================================================
   Reduced Motion Preferences
   ===================================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .loading-spinner {
    animation: none;
    border: 2px solid var(--color-sage);
  }
  
  .skeleton {
    animation: none;
    background: var(--color-dust);
  }
}

/* =====================================================
   High Contrast Mode Support
   ===================================================== */

@media (prefers-contrast: high) {
  :root {
    --color-ink: #000000;
    --color-charcoal: #333333;
    --color-sage: #0066CC;
    --color-dust: #666666;
    --color-focus: #0052A3;
  }
  
  .btn-primary {
    background-color: #0066CC;
    border: 2px solid #0066CC;
  }
  
  .btn-secondary {
    border: 2px solid #0066CC;
    color: #0066CC;
  }
  
  .form-input:focus,
  .form-textarea:focus {
    outline: 3px solid #0066CC;
    outline-offset: 2px;
  }
  
  .checklist-item {
    border: 2px solid var(--color-dust);
  }
  
  .checklist-item:focus-within {
    border-color: #0066CC;
    outline: 2px solid #0066CC;
  }
}

/* =====================================================
   Dark Mode Support (Future Enhancement)
   ===================================================== */

@media (prefers-color-scheme: dark) {
  /* Dark mode styles would go here */
  /* Currently not implemented to maintain design simplicity */
  /* Could be added as a future enhancement based on user feedback */
}