/* Responsive Design - Mobile-first approach with progressive enhancement */

/* ===== VIEWPORT AND BASE RESPONSIVE SETUP ===== */

html {
  /* Fix for mobile viewport height issues */
  height: 100%;
  height: calc(var(--vh, 1vh) * 100);
  /* iOS Safari specific */
  height: -webkit-fill-available;
}

body {
  /* Prevent horizontal scrolling */
  overflow-x: hidden;
  
  /* Optimize for touch devices */
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: none;
  
  /* Improve text rendering on mobile */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  
  /* iOS Safari viewport fix */
  min-height: 100vh;
  min-height: -webkit-fill-available;
}

/* ===== MOBILE FIRST (320px+) ===== */
/* Base styles in other CSS files are mobile-first */

/* Mobile viewport and content fixes */
@media (max-width: 768px) {
  /* Ensure all views account for tab navigation and safe areas */
  .view {
    padding-bottom: calc(var(--tab-height, 80px) + env(safe-area-inset-bottom, 0px) + 16px);
  }
  
  .view-content {
    max-height: calc(100vh - var(--tab-height, 80px) - env(safe-area-inset-bottom, 0px) - env(safe-area-inset-top, 0px));
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
  }
  
  /* Prevent content from being cut off at edges */
  .view-content {
    padding-left: max(var(--spacing-md), env(safe-area-inset-left, 0px));
    padding-right: max(var(--spacing-md), env(safe-area-inset-right, 0px));
  }
  
  /* Ensure minimum touch targets */
  button,
  .tab-item,
  .filter-button,
  .period-button {
    min-height: 44px;
    min-width: 44px;
  }
  
  /* ===== MOBILE HEADER LAYOUT ===== */
  /* Ensure header buttons are properly sized and positioned */
  .header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    flex-wrap: nowrap; /* Prevent wrapping */
  }
  
  .view-header {
    padding: 12px 16px;
  }
  
  /* Header actions container */
  .header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0; /* Prevent shrinking */
    margin-left: auto; /* Push to right */
  }
  
  /* Action buttons (messages, create tender, etc) - smaller on mobile */
  .messages-button,
  .create-tender-button,
  .discover-button-header,
  .header-actions .action-button,
  .header-actions button[id*="messages"],
  .header-actions button[id*="create-tender"] {
    font-size: 11px !important;
    padding: 6px 10px !important;
    gap: 4px !important;
    white-space: nowrap;
    flex-shrink: 0;
  }
  
  .messages-button svg,
  .create-tender-button svg,
  .discover-button-header svg,
  .header-actions .action-button svg,
  .header-actions button[id*="messages"] svg,
  .header-actions button[id*="create-tender"] svg {
    width: 14px !important;
    height: 14px !important;
  }
  
  /* Hide button text on very small screens, show icon only */
  @media (max-width: 390px) {
    .messages-button span,
    .create-tender-button span,
    .discover-button-header span,
    .header-actions button[id*="messages"] span,
    .header-actions button[id*="create-tender"] span {
      display: none;
    }
    
    .messages-button,
    .create-tender-button,
    .discover-button-header,
    .header-actions button[id*="messages"],
    .header-actions button[id*="create-tender"] {
      padding: 8px !important;
      min-width: 36px;
    }
  }
  
  /* Icon buttons (hide-values, etc) - standard size on right */
  .hide-values-button,
  .hide-values-toggle,
  .header-actions button[id*="hide-values"],
  .header-actions button[class*="eye"],
  .header-actions button[class*="hide-values"],
  .header-actions .icon-button {
    width: 40px !important;
    height: 40px !important;
    min-width: 40px !important;
    min-height: 40px !important;
    padding: 8px !important;
    flex-shrink: 0 !important;
    order: 10; /* Ensure these are always second to last */
  }
  
  /* Profile button - special handling (contains avatar, needs no padding) */
  .profile-button,
  .header-actions button[id*="profile"],
  .header-actions .profile-button {
    width: 40px !important;
    height: 40px !important;
    min-width: 40px !important;
    min-height: 40px !important;
    padding: 0 !important; /* No padding - avatar fills the button */
    flex-shrink: 0 !important;
    order: 11 !important; /* Always last */
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
  }
  
  /* Title/view name - allow to grow but with ellipsis */
  .view-title,
  .greeting-title {
    flex: 1;
    min-width: 0; /* Allow shrinking */
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 24px;
  }
}

/* Very small phones */
@media (max-width: 374px) {
  .view-content {
    padding: var(--spacing-md);
    padding-left: max(var(--spacing-md), env(safe-area-inset-left, 0px));
    padding-right: max(var(--spacing-md), env(safe-area-inset-right, 0px));
  }
  
  .quick-stats {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }
  
  .financial-summary {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }
  
  .header-content {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }
  
  .filters-section {
    flex-direction: column;
    align-items: stretch;
  }
  
  .time-filters,
  .time-period-selector {
    justify-content: center;
  }
  
  .tab-navigation {
    padding: 0 var(--spacing-xs);
  }
  
  .tab-item {
    min-width: 50px;
    padding: var(--spacing-xs);
  }
  
  .tab-label {
    display: none;
  }
  
  .greeting-title {
    font-size: var(--font-size-lg);
  }
  
  .view-title {
    font-size: var(--font-size-lg);
  }
}

/* ===== SMALL PHONES (375px+) ===== */
@media (min-width: 375px) {
  .quick-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .financial-summary {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .tab-label {
    display: block;
  }
}

/* ===== LARGE PHONES (414px+) ===== */
@media (min-width: 414px) {
  .view-content {
    padding: var(--spacing-lg);
  }
  
  .header-content {
    flex-direction: row;
    align-items: center;
  }
  
  .filters-section {
    flex-direction: row;
    align-items: center;
  }
}

/* ===== SMALL TABLETS (640px+) ===== */
@media (min-width: 640px) {
  .view-content {
    padding: var(--spacing-xl);
    max-width: none;
  }
  
  .quick-stats {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .financial-summary {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .actions-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .breakdowns-section {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .tender-metrics {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .chat-messages,
  .chat-input-container {
    padding: var(--spacing-xl);
  }
  
  /* Tablet-specific tab navigation */
  .tab-navigation {
    padding: 0 var(--spacing-lg);
  }
  
  .tab-item {
    min-width: 80px;
    padding: var(--spacing-sm) var(--spacing-md);
  }
  
  /* Better spacing for forms */
  .onboarding-content {
    padding: var(--spacing-2xl) var(--spacing-xl);
  }
  
  .bank-grid,
  .goals-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .ai-assistants {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ===== TABLETS (768px+) ===== */
@media (min-width: 768px) {
  .actions-container {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
  }
  
  .breakdowns-section {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
  }
  
  .tender-metrics {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .tenders-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
  }
  
  /* Improved chat layout */
  .chat-header {
    padding: var(--spacing-xl);
  }
  
  .ai-info {
    gap: var(--spacing-lg);
  }
  
  .ai-avatar {
    width: 50px;
    height: 50px;
  }
  
  /* Better onboarding layout */
  .onboarding-container {
    padding: var(--spacing-2xl);
  }
  
  .onboarding-content {
    max-width: 600px;
    padding: var(--spacing-3xl);
  }
  
  .bank-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
  }
  
  .goals-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  /* Modal improvements */
  .modal {
    max-width: 500px;
    margin: auto;
  }
}

/* ===== SMALL DESKTOP (1024px+) ===== */
@media (min-width: 1024px) {
  /* Container max-width for better readability */
  .app-container {
    max-width: 1200px;
    margin: 0 auto;
    box-shadow: var(--shadow-high);
  }
  
  .view-content {
    padding: var(--spacing-2xl);
  }
  
  .actions-container {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .breakdowns-section {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .tenders-list {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
  }
  
  /* Desktop-specific hover states */
  .modern-card:hover,
  .priority-card:hover,
  .action-card:hover,
  .breakdown-card:hover,
  .tender-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-high);
  }
  
  .tab-item:hover {
    transform: translateY(-2px);
  }
  
  /* Better chat experience */
  .chat-view {
    display: grid;
    grid-template-rows: auto 1fr auto;
    height: 100%;
  }
  
  .chat-messages {
    max-height: none;
  }
  
  /* Improved onboarding */
  .onboarding-content {
    max-width: 1008px; /* 44% wider for desktop (1.2 x 1.2) */
  }
  
  .bank-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .goals-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  /* Desktop navigation enhancements */
  .tab-navigation {
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--brokerly-border-light);
  }
  
  /* Modal improvements */
  .modal {
    max-width: 600px;
  }
  
}

/* ===== LARGE DESKTOP (1280px+) ===== */
@media (min-width: 1280px) {
  .app-container {
    max-width: 1400px;
  }
  
  .view-content {
    padding: var(--spacing-3xl);
  }
  
  .actions-container {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .tenders-list {
    grid-template-columns: repeat(3, 1fr);
  }
  
  /* Ultra-wide specific layouts */
  .quick-stats {
    grid-template-columns: repeat(6, 1fr);
  }
  
  .financial-summary {
    grid-template-columns: repeat(6, 1fr);
  }
  
  /* Better use of space */
  .onboarding-content {
    max-width: 1152px; /* 44% wider for large desktop (1.2 x 1.2) */
  }
  
  .bank-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .modal {
    max-width: 700px;
  }
}

/* ===== ULTRA-WIDE DESKTOP (1536px+) ===== */
@media (min-width: 1536px) {
  .app-container {
    max-width: 1600px;
  }
  
  .actions-container {
    grid-template-columns: repeat(5, 1fr);
  }
  
  .tenders-list {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .bank-grid {
    grid-template-columns: repeat(5, 1fr);
  }
  
  .goals-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}

/* ===== LANDSCAPE ORIENTATION ===== */
@media (orientation: landscape) and (max-height: 500px) {
  /* Optimize for landscape phones */
  .view-content {
    padding: var(--spacing-md) var(--spacing-lg);
  }
  
  .onboarding-content {
    padding: var(--spacing-lg);
    max-height: 80vh;
    overflow-y: auto;
  }
  
  .chat-messages {
    padding: var(--spacing-md) var(--spacing-lg);
  }
  
  .chat-input-container {
    padding: var(--spacing-md) var(--spacing-lg);
  }
  
  /* Compact header */
  .view-header {
    margin-bottom: var(--spacing-md);
  }
  
  .greeting-title,
  .view-title {
    font-size: var(--font-size-lg);
  }
  
  .greeting-subtitle {
    font-size: var(--font-size-sm);
  }
}

/* ===== HIGH DPI DISPLAYS ===== */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  /* Optimize for retina displays */
  body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  
  /* Sharper borders */
  .modern-card,
  .priority-card,
  .action-card,
  .breakdown-card,
  .tender-card {
    border-width: 0.5px;
  }
  
  .tab-navigation {
    border-top-width: 0.5px;
  }
}

/* ===== TOUCH DEVICE OPTIMIZATIONS ===== */
@media (hover: none) and (pointer: coarse) {
  /* Touch-friendly sizing */
  .tab-item {
    min-height: 60px;
    padding: var(--spacing-md);
  }
  
  .filter-button,
  .period-button {
    min-height: 44px;
    padding: var(--spacing-sm) var(--spacing-lg);
  }
  
  .send-button {
    width: 48px;
    height: 48px;
  }
  
  .profile-button {
    width: 48px;
    height: 48px;
  }
  
  /* Remove hover effects on touch devices */
  .hover-lift:hover,
  .hover-scale:hover,
  .hover-glow:hover {
    transform: none;
    box-shadow: none;
  }
  
  /* Enhance tap targets */
  .bank-card,
  .goal-card,
  .ai-assistant-card {
    min-height: 80px;
  }
  
  /* Better touch feedback */
  .ripple-effect {
    position: relative;
    overflow: hidden;
  }
  
  .ripple-effect:active {
    background-color: var(--brokerly-primary-light);
  }
}

/* ===== MOUSE/TRACKPAD DEVICE OPTIMIZATIONS ===== */
@media (hover: hover) and (pointer: fine) {
  /* Enable hover effects */
  .modern-card:hover,
  .priority-card:hover,
  .action-card:hover,
  .breakdown-card:hover,
  .tender-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
  }
  
  .tab-item:hover {
    background: var(--brokerly-primary-light);
    color: var(--brokerly-primary);
  }
  
  .filter-button:hover,
  .period-button:hover {
    background: var(--brokerly-primary-light);
    color: var(--brokerly-primary);
  }
  
  /* Cursor styles */
  .tab-item,
  .filter-button,
  .period-button,
  .bank-card,
  .goal-card,
  .ai-assistant-card,
  .demo-label {
    cursor: pointer;
  }
}

/* ===== PRINT STYLES ===== */
@media print {
  .tab-navigation,
  .demo-indicator,
  .chat-input-container,
  .modal-overlay,
  .toast-container {
    display: none !important;
  }
  
  .view-content {
    padding: 0;
    overflow: visible;
  }
  
  .modern-card,
  .priority-card,
  .action-card,
  .breakdown-card,
  .tender-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }
  
  body {
    background: var(--brokerly-background) !important;
    color: var(--brokerly-text-primary) !important;
  }
}

/* ===== ACCESSIBILITY ENHANCEMENTS ===== */

/* High contrast mode */
@media (prefers-contrast: high) {
  .modern-card,
  .priority-card,
  .action-card,
  .breakdown-card,
  .tender-card {
    border: 2px solid var(--brokerly-text-primary);
  }
  
  .tab-item.active {
    background: var(--brokerly-text-primary);
    color: var(--brokerly-background);
  }
  
  .filter-button.active,
  .period-button.active {
    background: var(--brokerly-text-primary);
    color: var(--brokerly-background);
  }
}

/* Reduced transparency */
@media (prefers-reduced-transparency: reduce) {
  .tab-navigation,
  .chat-header,
  .onboarding-nav {
    backdrop-filter: none;
    background: var(--modern-card-background);
  }
}

/* ===== CUSTOM BREAKPOINT UTILITIES ===== */

.mobile-only {
  display: block;
}

.tablet-up {
  display: none;
}

.desktop-up {
  display: none;
}

/* Tablet-specific fixes to prevent overlapping (large phones and tablets) */
@media (min-width: 640px) and (max-width: 1023px) {
  /* Ensure metric cards don't overlap */
  .stat-card,
  .metric-card,
  .quick-stat-card {
    min-height: 120px;
    padding: var(--spacing-md);
  }
  
  .stat-value,
  .metric-value {
    font-size: clamp(1.25rem, 3.5vw, 1.75rem);
    line-height: 1.2;
    margin: var(--spacing-xs) 0;
  }
  
  .stat-label,
  .metric-label {
    font-size: 13px;
    line-height: 1.3;
  }
  
  /* Adjust grid layouts for tablets */
  .quick-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }
  
  .financial-summary {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }
  
  /* Top priority action card sizing */
  .top-priority-action {
    max-width: 100%;
  }
  
  /* Ensure action cards don't overlap */
  .action-card {
    min-height: 160px;
  }
}

@media (min-width: 768px) {
  .mobile-only {
    display: none;
  }
  
  .tablet-up {
    display: block;
  }
}

@media (min-width: 1024px) {
  .desktop-up {
    display: block;
  }
  
  /* Restore 3-column layout on desktop */
  .quick-stats {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .financial-summary {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ===== CONTAINER QUERIES (Future Enhancement) ===== */
/* When container queries are widely supported, these can be uncommented */

/*
@container (min-width: 400px) {
  .quick-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@container (min-width: 600px) {
  .quick-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}
*/

/* ===== RESPONSIVE TYPOGRAPHY ===== */

/* Fluid typography for better readability across devices */
.greeting-title,
.view-title {
  font-size: clamp(1.25rem, 4vw, 1.5rem);
}

.greeting-subtitle {
  font-size: clamp(0.875rem, 3vw, 1rem);
}

.section-title {
  font-size: clamp(1rem, 3.5vw, 1.125rem);
}

/* ===== SAFE AREA HANDLING ===== */

/* Handle notches and safe areas on modern devices */
@supports (padding-top: env(safe-area-inset-top)) {
  .view-header {
    padding-top: calc(var(--spacing-lg) + env(safe-area-inset-top));
  }
  
  .chat-header,
  .chat-header-ios {
    padding-top: calc(12px + env(safe-area-inset-top));
  }
  
  .onboarding-nav {
    padding-bottom: calc(var(--spacing-lg) + env(safe-area-inset-bottom));
  }
  
  .tab-navigation {
    padding-bottom: max(8px, env(safe-area-inset-bottom));
    /* Ensure tab navigation has proper height accounting for safe area */
    height: calc(var(--tab-height, 80px) + env(safe-area-inset-bottom, 0px));
    min-height: calc(var(--tab-height, 80px) + env(safe-area-inset-bottom, 0px));
    max-height: calc(var(--tab-height, 80px) + env(safe-area-inset-bottom, 0px));
  }
  
  /* View content should account for tab navigation including safe area */
  .content-container {
    padding-bottom: calc(var(--tab-height, 80px) + env(safe-area-inset-bottom, 0px));
  }
  
  /* Chat view specific safe area handling */
  .chat-view-content {
    height: 100vh;
    height: -webkit-fill-available;
  }
  
  .chat-input-interface {
    padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  }
}

/* ===== PERFORMANCE OPTIMIZATIONS ===== */

/* Optimize scrolling performance */
.view-content,
.chat-messages {
  contain: layout style paint;
}

/* Optimize animations for mobile */
@media (max-width: 768px) {
  .modern-card,
  .priority-card,
  .action-card,
  .breakdown-card,
  .tender-card {
    will-change: transform;
  }
}

/* ===== DARK MODE RESPONSIVE ADJUSTMENTS ===== */

@media (prefers-color-scheme: dark) {
  /* Adjust shadows for dark mode */
  .modern-card:hover,
  .priority-card:hover,
  .action-card:hover,
  .breakdown-card:hover,
  .tender-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  }
  
  .app-container {
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1);
  }
}