/* 
 * OBudget Hand-Crafted Premium CSS Stylesheet
 * Responsive Bento Grid, RTL-first using CSS Logical Properties, and Sharp Corporate Aesthetic
 */

:root {
  /* Colors */
  --primary: #0f172a;
  --primary-container: #1e293b;
  --on-primary: #ffffff;
  --on-primary-container: #f8fafc;
  
  --secondary: #64748b;
  --secondary-container: #f1f5f9;
  --on-secondary: #ffffff;
  --on-secondary-container: #0f172a;
  
  --tertiary: #f1f5f9;
  --on-tertiary: #0f172a;
  
  --background: #f9f9ff;
  --on-background: #111c2d;
  
  --surface: #ffffff;
  --surface-bright: #ffffff;
  --surface-container: #f1f5f9;
  --surface-container-low: #f8fafc;
  --surface-container-lowest: #ffffff;
  --surface-container-high: #e8edf5;
  
  --on-surface: #111c2d;
  --on-surface-variant: #45464d;
  
  --outline: #94a3b8;
  --outline-variant: #e2e8f0;
  
  --error: #ba1a1a;
  --error-container: #ffdad6;
  --on-error: #ffffff;
  --on-error-container: #93000a;
  
  --success: #2e7d32;
  --success-container: #e8f5e9;
  
  --warning: #ed6c02;
  --warning-container: #fff3e0;

  --border-radius: 0px;
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base Styles */
*, ::before, ::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "IBM Plex Sans", "Cairo", sans-serif;
  background-color: var(--background);
  color: var(--on-background);
  line-height: 1.5;
  display: flex;
  height: 100vh;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
}

/* Main Layout Structure */
.app-container {
  display: flex;
  width: 100%;
  height: 100%;
  position: relative;
}

/* Sidebar (Desktop Only) */
.sidebar {
  width: 260px;
  background-color: var(--surface-container-lowest);
  border-inline-end: 1px solid var(--outline-variant);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  height: 100%;
}

.sidebar-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--outline-variant);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary);
}

.sidebar-header i {
  color: var(--secondary);
}

.sidebar-nav {
  flex: 1;
  padding: 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  overflow-y: auto;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1rem;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--secondary);
  border-inline-start: 4px solid transparent;
  background-color: transparent;
}

.nav-link:hover {
  background-color: var(--surface-container);
  color: var(--primary);
}

.nav-link.active {
  background-color: var(--surface-container);
  color: var(--primary);
  border-inline-start-color: var(--primary);
}

.nav-link i {
  width: 20px;
  text-align: center;
  font-size: 1.1rem;
}

.sidebar-footer {
  padding: 1rem;
  border-top: 1px solid var(--outline-variant);
}

/* Main Content Area */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  position: relative;
  width: 100%;
}

/* Header */
.top-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background-color: var(--surface-container-lowest);
  border-bottom: 1px solid var(--outline-variant);
  position: sticky;
  top: 0;
  z-index: 40;
}

.mobile-brand {
  display: none;
  align-items: center;
  gap: 0.5rem;
  font-weight: bold;
  font-size: 1.125rem;
  color: var(--primary);
}

.mobile-brand i {
  color: var(--secondary);
}

.desktop-title h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-inline-start: auto;
}

.lang-switch {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--secondary);
  border: 1px solid var(--outline-variant);
  padding: 0.25rem 0.5rem;
  border-radius: var(--border-radius);
}

.lang-switch:hover {
  color: var(--primary);
}

.notification-bell {
  position: relative;
  color: var(--secondary);
  font-size: 1.125rem;
}

.notification-bell:hover {
  color: var(--primary);
}

.alert-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  background-color: var(--error);
  color: var(--on-error);
  font-size: 10px;
  font-weight: bold;
  padding: 1px 5px;
  border-radius: 9999px;
  border: 1px solid var(--surface-container-lowest);
}

/* Dynamic Page Container */
.page-container {
  padding: 2rem;
  flex: 1;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
}

/* Footer (Desktop Only) */
.footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.75rem;
  color: var(--secondary);
  border-top: 1px solid var(--outline-variant);
  background-color: var(--surface-container-lowest);
}

/* Bottom Navigation Bar (Mobile Only) */
.bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4rem;
  background-color: #000000;
  border-top: 1px solid #1c1c1e;
  z-index: 50;
  justify-content: space-around;
  align-items: center;
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

.bottom-nav-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  height: 100%;
  gap: 0.25rem;
  color: #a1a1a6;
  font-size: 10px;
  font-weight: bold;
}

.bottom-nav-link i {
  font-size: 1.25rem;
}

.bottom-nav-link:hover {
  color: #ffffff;
}

.bottom-nav-link.active {
  color: #ffffff;
}

/* Offline Banner */
#offline-banner {
  background-color: var(--warning);
  color: var(--surface-bright);
  text-align: center;
  padding: 0.5rem;
  font-weight: bold;
  font-size: 0.875rem;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
}

/* Bento Grid System */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
  width: 100%;
}

.col-12 { grid-column: span 12 / span 12; }
.col-8 { grid-column: span 8 / span 8; }
.col-6 { grid-column: span 6 / span 6; }
.col-4 { grid-column: span 4 / span 4; }
.col-3 { grid-column: span 3 / span 3; }

/* Bento Components (Cards) */
.card {
  background-color: var(--surface-bright);
  border: 1px solid var(--outline-variant);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--outline-variant);
  padding-bottom: 0.75rem;
}

.card-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--primary);
}

.card-subtitle {
  font-size: 0.75rem;
  font-weight: bold;
  color: var(--secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-body {
  flex: 1;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  border-radius: var(--border-radius);
  background-color: transparent;
  font-size: 0.875rem;
}

.btn:hover {
  opacity: 0.9;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--on-primary);
}

.btn-secondary {
  background-color: transparent;
  border-color: var(--primary);
  color: var(--primary);
}

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

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
}

.btn-outline-danger {
  border-color: var(--error);
  color: var(--error);
}

.btn-outline-danger:hover {
  background-color: var(--error-container);
}

/* Forms & Controls */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  width: 100%;
}

.form-label {
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--on-background);
}

.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--outline-variant);
  background-color: var(--surface);
  color: var(--on-background);
  outline: none;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 1px var(--primary);
}

.form-control::placeholder {
  color: var(--secondary);
  opacity: 0.6;
}

.form-select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--outline-variant);
  background-color: var(--surface);
  color: var(--on-background);
  outline: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%2364748b' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 0.75rem center;
  background-repeat: no-repeat;
  background-size: 1.25em 1.25em;
  padding-right: 2.5rem;
  appearance: none;
}

html[dir="rtl"] .form-select {
  background-position: left 0.75rem center;
  padding-right: 0.75rem;
  padding-left: 2.5rem;
}

.form-select:focus {
  border-color: var(--primary);
}

.form-error {
  color: var(--error);
  font-size: 0.75rem;
  font-weight: 700;
  margin-top: 0.25rem;
}

/* Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--outline-variant);
  border-radius: var(--border-radius);
  background-color: var(--surface-bright);
}

.table {
  width: 100%;
  border-collapse: collapse;
  text-align: start;
}

.table th {
  background-color: var(--surface-container);
  padding: 0.75rem 1rem;
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--on-background);
  border-bottom: 1px solid var(--outline-variant);
}

.table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--outline-variant);
  font-size: 0.875rem;
  color: var(--on-surface-variant);
}

.table tr:hover {
  background-color: var(--surface-container-low);
}

/* Badges & Indicators */
.badge {
  display: inline-flex;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--border-radius);
  align-items: center;
  gap: 0.25rem;
}

.badge-success {
  background-color: var(--success-container);
  color: var(--success);
}

.badge-error {
  background-color: var(--error-container);
  color: var(--error);
}

.badge-warning {
  background-color: var(--warning-container);
  color: var(--warning);
}

/* Alerts & Banners */
.alert {
  padding: 1rem;
  border: 1px solid transparent;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
}

.alert-warning {
  background-color: var(--warning-container);
  border-color: var(--warning);
  color: var(--warning);
}

.alert-info {
  background-color: var(--surface-container);
  border-color: var(--outline-variant);
  color: var(--primary);
}

/* Helper styles */
.font-mono {
  font-family: "IBM Plex Mono", monospace;
}

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

.flex-row-justify-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.flex-col-gap-4 {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Progress bar */
.progress-container {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: 100%;
}

.progress-bar {
  width: 100%;
  height: 6px;
  background-color: var(--surface-container);
  border: 1px solid var(--outline-variant);
  overflow: hidden;
  display: flex;
}

.progress-bar-fill {
  height: 100%;
  background-color: var(--secondary);
}

/* Dashboard Actions */
.action-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.action-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  border: 1px solid var(--outline-variant);
  transition: var(--transition);
}

.action-link:hover {
  background-color: var(--surface-container);
}

.action-link-content {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Page specific layouts */
.login-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  padding: 1rem;
}

.login-card {
  width: 100%;
  max-width: 400px;
}

.login-header {
  text-align: center;
  padding: 1.5rem;
  background-color: var(--surface-container-low);
  border-bottom: 1px solid var(--outline-variant);
}

.login-body {
  padding: 2rem;
}

/* Detail Views */
.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.detail-label {
  font-size: 0.75rem;
  font-weight: bold;
  color: var(--secondary);
  text-transform: uppercase;
}

.detail-value {
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--primary);
}

/* Responsive Overrides */
@media (max-width: 768px) {
  .sidebar {
    display: none;
  }
  
  .top-header {
    padding: 1rem;
  }
  
  .mobile-brand {
    display: flex;
  }
  
  .desktop-title {
    display: none;
  }
  
  .page-container {
    padding: 1rem;
    padding-bottom: 5.5rem; /* Space for fixed mobile navigation bar */
  }
  
  .bottom-nav {
    display: flex;
  }
  
  .bento-grid {
    grid-template-columns: 1fr;
  }
  
  .col-12, .col-8, .col-6, .col-4, .col-3 {
    grid-column: span 12 / span 12;
  }
  
  .detail-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}