/**
 * Online Banking System - Enhanced Responsive Framework
 * Phase 1: Foundation & Infrastructure
 * 
 * This file contains responsive utilities and layouts for modern
 * banking interface across all devices.
 */

/* Import Dependencies */
@import url('variables.css');
@import url('modern-theme.css');

/* Base Responsive Structure */
.responsive-container {
  width: 100%;
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Mobile First Breakpoints */
/* Extra Small devices (phones, 576px and down) */
@media (max-width: 575.98px) {
  .responsive-container {
    padding: 0 var(--spacing-sm);
  }
  
  .mobile-stack {
    flex-direction: column !important;
  }
  
  .mobile-full-width {
    width: 100% !important;
  }
  
  .mobile-center {
    text-align: center !important;
  }
  
  .mobile-hide {
    display: none !important;
  }
  
  .mobile-only {
    display: block !important;
  }
  
  /* Mobile Navigation */
  .mobile-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--card-background);
    border-bottom: 1px solid var(--border-color);
    z-index: var(--z-fixed);
    padding: 0 var(--spacing-md);
  }
  
  .mobile-content {
    margin-top: var(--header-height);
    margin-bottom: var(--bottom-nav-height);
    padding: var(--spacing-md);
  }
  
  .mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--bottom-nav-height);
    background: var(--card-background);
    border-top: 1px solid var(--border-color);
    z-index: var(--z-fixed);
    display: flex;
    justify-content: space-around;
    align-items: center;
  }
  
  .mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xs);
    color: var(--text-color);
    text-decoration: none;
    font-size: var(--font-size-xs);
    transition: var(--transition-fast);
  }
  
  .mobile-nav-item.active {
    color: var(--primary-color);
  }
  
  .mobile-nav-item ion-icon {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
  }
}

/* Small devices (landscape phones, 576px and up) */
@media (min-width: 576px) {
  .responsive-container {
    padding: 0 var(--spacing-md);
  }
  
  .sm-show {
    display: block !important;
  }
  
  .sm-hide {
    display: none !important;
  }
  
  .sm-flex {
    display: flex !important;
  }
  
  .sm-grid {
    display: grid !important;
  }
  
  .sm-cols-2 {
    grid-template-columns: repeat(2, 1fr) !important;
  }
  
  .sm-cols-3 {
    grid-template-columns: repeat(3, 1fr) !important;
  }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) {
  .responsive-container {
    padding: 0 var(--spacing-lg);
  }
  
  .md-show {
    display: block !important;
  }
  
  .md-hide {
    display: none !important;
  }
  
  .md-flex {
    display: flex !important;
  }
  
  .md-grid {
    display: grid !important;
  }
  
  .md-cols-2 {
    grid-template-columns: repeat(2, 1fr) !important;
  }
  
  .md-cols-3 {
    grid-template-columns: repeat(3, 1fr) !important;
  }
  
  .md-cols-4 {
    grid-template-columns: repeat(4, 1fr) !important;
  }
  
  /* Tablet Layout */
  .tablet-layout {
    display: grid;
    grid-template-columns: 1fr 3fr;
    gap: var(--spacing-lg);
    min-height: 100vh;
  }
  
  .tablet-sidebar {
    background: var(--card-background);
    border-right: 1px solid var(--border-color);
    padding: var(--spacing-lg);
  }
  
  .tablet-main {
    padding: var(--spacing-lg);
  }
  
  .tablet-header {
    position: sticky;
    top: 0;
    background: var(--card-background);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) var(--spacing-lg);
    z-index: var(--z-sticky);
  }
  
  .tablet-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }
  
  .tablet-transaction-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
  }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) {
  .responsive-container {
    padding: 0 var(--spacing-xl);
  }
  
  .lg-show {
    display: block !important;
  }
  
  .lg-hide {
    display: none !important;
  }
  
  .lg-flex {
    display: flex !important;
  }
  
  .lg-grid {
    display: grid !important;
  }
  
  .lg-cols-2 {
    grid-template-columns: repeat(2, 1fr) !important;
  }
  
  .lg-cols-3 {
    grid-template-columns: repeat(3, 1fr) !important;
  }
  
  .lg-cols-4 {
    grid-template-columns: repeat(4, 1fr) !important;
  }
  
  .lg-cols-5 {
    grid-template-columns: repeat(5, 1fr) !important;
  }
  
  /* Desktop Layout */
  .desktop-layout {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    min-height: 100vh;
  }
  
  .desktop-sidebar {
    background: var(--card-background);
    border-right: 1px solid var(--border-color);
    padding: var(--spacing-lg);
    position: fixed;
    width: var(--sidebar-width);
    height: 100vh;
    overflow-y: auto;
    z-index: var(--z-fixed);
  }
  
  .desktop-main {
    margin-left: var(--sidebar-width);
    padding: var(--spacing-lg);
  }
  
  .desktop-header {
    position: sticky;
    top: 0;
    background: var(--card-background);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) var(--spacing-lg);
    margin: calc(var(--spacing-lg) * -1) calc(var(--spacing-lg) * -1) var(--spacing-lg);
    z-index: var(--z-sticky);
  }
  
  .desktop-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
  }
  
  .desktop-dashboard {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
  }
  
  .desktop-transaction-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
  }
  
  .desktop-form-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
  }
  
  .desktop-balance-section {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
    align-items: start;
  }
  
  /* Desktop Navigation */
  .desktop-nav {
    background: var(--card-background);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
  }
  
  .desktop-nav-container {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  
  .desktop-nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
  }
  
  .desktop-nav-item {
    color: var(--text-color);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    transition: var(--transition-fast);
  }
  
  .desktop-nav-item:hover,
  .desktop-nav-item.active {
    background: var(--light-color);
    color: var(--primary-color);
  }
  
  .desktop-user-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
  }
  
  .desktop-user-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-full);
    object-fit: cover;
  }
  
  .desktop-user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
  }
  
  .desktop-user-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--heading-color);
  }
  
  .desktop-user-role {
    font-size: var(--font-size-xs);
    color: var(--text-color);
  }
}

/* Extra Large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
  .responsive-container {
    padding: 0 var(--spacing-2xl);
  }
  
  .xl-show {
    display: block !important;
  }
  
  .xl-hide {
    display: none !important;
  }
  
  .xl-cols-4 {
    grid-template-columns: repeat(4, 1fr) !important;
  }
  
  .xl-cols-5 {
    grid-template-columns: repeat(5, 1fr) !important;
  }
  
  .xl-cols-6 {
    grid-template-columns: repeat(6, 1fr) !important;
  }
  
  .desktop-cards {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .desktop-wide-layout {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr 300px;
    gap: var(--spacing-lg);
  }
  
  .desktop-sidebar-right {
    background: var(--card-background);
    border-left: 1px solid var(--border-color);
    padding: var(--spacing-lg);
  }
}

/* Ultra Wide devices (1400px and up) */
@media (min-width: 1400px) {
  .responsive-container {
    padding: 0 var(--spacing-3xl);
  }
  
  .xxl-show {
    display: block !important;
  }
  
  .xxl-hide {
    display: none !important;
  }
  
  .desktop-cards {
    grid-template-columns: repeat(5, 1fr);
  }
  
  .desktop-ultra-wide {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr 350px;
    gap: var(--spacing-xl);
  }
}

/* Responsive Typography */
@media (max-width: 575.98px) {
  h1 { font-size: var(--font-size-2xl); }
  h2 { font-size: var(--font-size-xl); }
  h3 { font-size: var(--font-size-lg); }
  h4 { font-size: var(--font-size-base); }
  h5 { font-size: var(--font-size-sm); }
  h6 { font-size: var(--font-size-xs); }
  
  .balance-amount {
    font-size: var(--font-size-3xl) !important;
  }
}

@media (min-width: 576px) and (max-width: 767.98px) {
  h1 { font-size: var(--font-size-3xl); }
  h2 { font-size: var(--font-size-2xl); }
  
  .balance-amount {
    font-size: var(--font-size-4xl) !important;
  }
}

@media (min-width: 768px) {
  h1 { font-size: var(--font-size-4xl); }
  h2 { font-size: var(--font-size-3xl); }
  
  .balance-amount {
    font-size: var(--font-size-4xl) !important;
  }
}

/* Responsive Spacing */
@media (max-width: 575.98px) {
  .responsive-spacing {
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
  }
  
  .responsive-gap {
    gap: var(--spacing-sm);
  }
}

@media (min-width: 576px) and (max-width: 767.98px) {
  .responsive-spacing {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
  }
  
  .responsive-gap {
    gap: var(--spacing-md);
  }
}

@media (min-width: 768px) {
  .responsive-spacing {
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
  }
  
  .responsive-gap {
    gap: var(--spacing-lg);
  }
}

/* Responsive Cards */
@media (max-width: 575.98px) {
  .modern-card {
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-md);
  }
  
  .balance-card {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
  }
}

@media (min-width: 576px) and (max-width: 767.98px) {
  .modern-card {
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-lg);
  }
  
  .balance-card {
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
  }
}

@media (min-width: 768px) {
  .modern-card {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-xl);
  }
  
  .balance-card {
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
  }
}

/* Responsive Utilities */
.d-block { display: block !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-flex { display: flex !important; }
.d-grid { display: grid !important; }
.d-none { display: none !important; }

.flex-column { flex-direction: column !important; }
.flex-row { flex-direction: row !important; }
.flex-wrap { flex-wrap: wrap !important; }
.flex-nowrap { flex-wrap: nowrap !important; }

.justify-content-start { justify-content: flex-start !important; }
.justify-content-center { justify-content: center !important; }
.justify-content-end { justify-content: flex-end !important; }
.justify-content-between { justify-content: space-between !important; }
.justify-content-around { justify-content: space-around !important; }

.align-items-start { align-items: flex-start !important; }
.align-items-center { align-items: center !important; }
.align-items-end { align-items: flex-end !important; }
.align-items-stretch { align-items: stretch !important; }

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

.w-25 { width: 25% !important; }
.w-50 { width: 50% !important; }
.w-75 { width: 75% !important; }
.w-100 { width: 100% !important; }

.h-25 { height: 25% !important; }
.h-50 { height: 50% !important; }
.h-75 { height: 75% !important; }
.h-100 { height: 100% !important; }

/* Responsive Images */
.responsive-img {
  max-width: 100%;
  height: auto;
  display: block;
}

.responsive-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-full);
  object-fit: cover;
}

@media (min-width: 768px) {
  .responsive-avatar {
    width: 48px;
    height: 48px;
  }
}

@media (min-width: 992px) {
  .responsive-avatar {
    width: 56px;
    height: 56px;
  }
}

/* Responsive Tables */
.responsive-table {
  width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  border-spacing: 0;
}

.responsive-table th,
.responsive-table td {
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.responsive-table th {
  background: var(--light-color);
  font-weight: var(--font-weight-semibold);
  color: var(--heading-color);
}

@media (max-width: 575.98px) {
  .responsive-table {
    font-size: var(--font-size-xs);
  }
  
  .responsive-table th,
  .responsive-table td {
    padding: var(--spacing-xs) var(--spacing-sm);
  }
}

/* Responsive Forms */
.responsive-form {
  width: 100%;
  max-width: 600px;
}

.responsive-form-row {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.responsive-form-col {
  flex: 1;
  min-width: 200px;
}

@media (max-width: 575.98px) {
  .responsive-form-row {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .responsive-form-col {
    min-width: 100%;
  }
}

/* Print Styles */
@media print {
  .mobile-hide,
  .desktop-hide,
  .no-print {
    display: none !important;
  }
  
  .desktop-layout {
    display: block;
  }
  
  .desktop-sidebar {
    display: none;
  }
  
  .desktop-main {
    margin-left: 0;
  }
  
  .modern-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid var(--border-color);
  }
  
  .balance-card {
    background: white !important;
    color: var(--text-color) !important;
  }
}

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

@media (prefers-color-scheme: dark) {
  :root {
    --preferred-color-scheme: dark;
  }
}

/* Focus Management */
.focus-trap {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--primary-color);
  color: white;
  padding: 8px;
  border-radius: var(--border-radius-md);
  text-decoration: none;
  z-index: 1000;
}

.skip-link:focus {
  top: 6px;
}