/* Global Defaults */
#root {
  width: 100%;
  height: 100vh;
  margin: 0;
  padding: 0;
  text-align: left;
  overflow: hidden;
  /* Prevent body scroll */
}

/* App Layout Container */
.app-layout {
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
  overflow: hidden;
}

.app-header {
  background-color: #212529;
  color: white;
  padding: 1rem 2rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  flex-shrink: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.app-header h1 {
  margin: 0;
  font-size: 1.5rem;
}

/* App Body (Sidebar + Main) */
.app-body {
  display: flex;
  flex: 1;
  /* Take remaining height */
  overflow: hidden;
  flex-direction: row;
}

/* Sidebar */
.sheet-nav {
  width: 250px;
  background: var(--panel-bg, #f8f9fa);
  border-right: 1px solid var(--border-color, #dee2e6);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  flex-shrink: 0;
}

.sheet-nav-header {
  padding: 1rem;
  color: #6c757d;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.8rem;
  border-bottom: 1px solid #dee2e6;
}

.sheet-nav-item {
  text-align: left;
  padding: 0.75rem 1rem;
  border: none;
  border-bottom: 1px solid #dee2e6;
  background: transparent;
  width: 100%;
  color: #212529;
  transition: all 0.2s;
  cursor: pointer;
}

.sheet-nav-item:hover {
  background: #e9ecef;
  color: #007bff;
}

.sheet-nav-item.active {
  background: #e9ecef;
  color: #007bff;
  font-weight: 600;
  border-left: 3px solid #007bff;
}

/* Main Content Area */
.main-content {
  flex: 1;
  padding: 1.5rem;
  overflow-y: auto;
  background: #f8f9fa;
  min-width: 0;
  /* Prevent flex blowout */
}

.sheet-content {
  margin: 0 auto;
  max-width: 1200px;
  background: white;
  padding: 2rem;
  border-radius: 4px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Utilities */
.flex-row {
  display: flex;
  gap: 1rem;
}

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

/* Search (Legacy support if needed) */
.search-header {
  margin-bottom: 1rem;
}

.search-bar-container {
  display: flex;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.search-input {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid #ced4da;
  border-radius: 4px;
  font-size: 1rem;
}

.result-count {
  font-size: 0.9rem;
  color: #6c757d;
  text-align: right;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 1rem;
}


.layout {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

.app-header {
  background-color: #212529;
  color: white;
  padding: 1rem 2rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.app-header h1 {
  margin: 0;
  font-size: 1.5rem;
}

.app-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 1rem 2rem;
  background-color: #f8f9fa;
}

.search-header {
  margin-bottom: 1rem;
}

.search-bar-container {
  display: flex;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.search-input {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid #ced4da;
  border-radius: 4px;
  font-size: 1rem;
}

.category-select {
  padding: 0.75rem;
  border: 1px solid #ced4da;
  border-radius: 4px;
  font-size: 1rem;
  min-width: 200px;
}

.result-count {
  font-size: 0.9rem;
  color: #6c757d;
  text-align: right;
}

.app-container {
  flex: 1;
  overflow-y: auto;
  background: white;
  border-radius: 4px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  padding: 1rem;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--spacing-md);
}

.calculator-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  padding: var(--spacing-md);
  height: 100%;
  overflow-y: auto;
}

@media (max-width: 1000px) {
  .calculator-grid {
    grid-template-columns: 1fr;
  }
}


/* Sidebar Navigation */
.sheet-nav {
  width: 250px;
  background: var(--panel-bg);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.sheet-nav-header {
  padding: var(--spacing-md);
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  font-size: var(--font-size-sm);
  border-bottom: 1px solid var(--border-color);
}

.sheet-nav-item {
  text-align: left;
  padding: var(--spacing-md);
  border: none;
  border-bottom: 1px solid var(--border-color);
  background: transparent;
  width: 100%;
  color: var(--text-color);
  transition: all 0.2s;
}

.sheet-nav-item:hover {
  background: var(--bg-color);
  color: var(--primary-blue);
}

.sheet-nav-item.active {
  background: var(--bg-color);
  color: var(--primary-blue);
  font-weight: 600;
  border-left: 3px solid var(--primary-blue);
}

.main-content {
  flex: 1;
  padding: var(--spacing-lg);
  overflow-y: auto;
  background: var(--bg-color);
}

.sheet-content {
  margin: 0 auto;
  max-width: 1200px;
}