/* CSS Custom Properties */
:root {
  /* Colors */
  --color-primary: #3b82f6;
  --color-primary-hover: #2563eb;
  --color-amber: #f59e0b;
  --color-amber-hover: #d97706;
  --color-muted: #23272f;
  --color-border: #333333;
  --color-text: #e0e0e0;
  --color-text-muted: #a0a0a0;
  --color-background: #121212;

  /* Typography */
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.5;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-base: 150ms ease-in-out;

  --color-card-background: #1e1e1e;
  --color-text-primary: #e0e0e0;
  --color-accent: #88bbee;
  --color-accent-dark: #5588cc;
  --color-error: #dc3545;
  --color-success: #28a745;
  --color-button-hover: #2a2a2a;

  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --box-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --box-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

html {
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  color: var(--color-text-primary);
  background-color: var(--color-background);
  min-height: 100vh;
  padding: var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

.header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.subtitle {
  color: var(--color-text-muted);
  font-size: 1.125rem;
}

/* Grid System */
.grid-2-cols {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.grid-3-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

@media (max-width: 768px) {
  .grid-2-cols,
  .grid-3-cols {
    grid-template-columns: 1fr;
  }
}

/* Cards */
.card {
  background-color: var(--color-card-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--box-shadow-md);
}

.card-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-background);
}

.card-header h2 {
  margin: 0;
  font-size: 1.25rem;
  color: var(--color-text-primary);
}

.card-content {
  padding: var(--spacing-lg);
}

/* Forms */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.input-wrapper,
.select-wrapper {
  position: relative;
}

.input,
.select {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  font-size: 1rem;
  color: var(--color-text-primary);
  background-color: var(--color-card-background);
  box-sizing: border-box;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.input:focus,
.select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.input-suffix {
  position: absolute;
  right: var(--spacing-sm);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.select {
  appearance: none;
  width: 100%;
  padding: var(--spacing-sm) 2.5rem var(--spacing-sm) var(--spacing-md);
  height: 2.5rem;
  line-height: 1;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  font-size: 1rem;
  color: var(--color-text-primary);
  background-color: var(--color-card-background);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23666666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--spacing-md) center;
  background-size: 1rem;
  box-sizing: border-box;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.select-wrapper::after {
  /* Removed: No longer needed with SVG background-image */
  content: none;
}

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  background-color: var(--color-card-background);
  color: var(--color-text-primary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.button:hover {
  background-color: var(--color-button-hover);
  border-color: var(--color-accent);
}

.button:active {
  background-color: var(--color-accent);
  color: var(--color-card-background);
}

.button.round {
  border-radius: 50%;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  font-size: 1rem; /* For icons */
}

.button-amber {
  background-color: #ffc107;
  border-color: #ffc107;
  color: #333333;
}

.button-amber:hover {
  background-color: #e0a800;
  border-color: #e0a800;
}

/* Tabs */
.tabs {
  margin-top: var(--spacing-xl);
}

.tabs-list {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.tab-button {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-background);
  color: var(--color-text-muted);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
}

.tab-button:hover {
  background-color: var(--color-muted);
}

.tab-button.active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* Table */
.table-container {
  overflow-x: auto;
  margin: 0 calc(-1 * var(--spacing-lg));
  padding: 0 var(--spacing-lg);
}

.type-scale-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-family);
}

.type-scale-table th,
.type-scale-table td {
  padding: var(--spacing-sm);
  text-align: center;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
  height: 4.5rem;
  color: var(--color-text-primary);
}

.type-scale-table td span.font-mono {
  color: var(--color-text-primary);
}

.type-scale-table th > div,
.type-scale-table td > div {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}

.type-scale-table th.scale-step-cell > div {
  justify-content: flex-start;
}

.type-scale-table th .text-muted {
  margin-left: var(--spacing-sm);
}

.type-scale-table td input,
.type-scale-table td span {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 2.5rem;
  width: 100%;
  margin: 0 auto;
}

.type-scale-table th {
  font-weight: 500;
}

.type-scale-table th .flex-center,
.type-scale-table th .text-muted {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.type-scale-table th.scale-step-cell .text-muted {
  justify-content: flex-start;
}

.type-scale-table th.button-cell .flex-center {
  min-height: 3rem;
}

.button-cell {
  width: 3rem;
  text-align: center;
  padding: var(--spacing-sm) !important;
}

.button-cell .flex-center {
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.scale-step-cell {
  width: 8rem;
}

.viewport-cell {
  min-width: 8rem;
}

.viewport-cell .flex-center {
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.viewport-cell .flex-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
}

.viewport-cell .input {
  margin-top: 0.25rem;
  margin-bottom: 0.25rem;
}

.bg-muted {
  background-color: var(--color-background);
  color: var(--color-text-primary);
}

.text-muted {
  color: var(--color-text-muted);
}

.text-center {
  text-align: center;
}

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

.hidden {
  display: none;
}

/* Custom Scale Container */
.custom-scale-container {
  margin-top: var(--spacing-sm);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .container {
    padding: var(--spacing-md);
  }
}

@media (max-width: 640px) {
  .container {
    padding: var(--spacing-sm);
  }

  .card-content {
    padding: var(--spacing-md);
  }

  .input,
  .select {
    font-size: 0.875rem;
  }
}

/* Print Styles */
@media print {
  .button,
  .tab-button,
  .input,
  .select {
    border: 1px solid #000;
  }
}

.step-separator {
  border-left: 2px solid var(--color-border, #e5e7eb);
}

/* Remove theme-toggle button and icons */
.theme-toggle, .sun-icon, .moon-icon {
  display: none !important;
}

/* Chart styles */
.chart-container {
  height: 500px;
  position: relative;
  background: var(--color-card-background);
  display: flex;
  flex-direction: column;
}

.chart-container canvas {
  flex: 1;
  width: 100% !important;
  height: 100% !important;
}

/* FIXED AXES STYLES */
.y-axis {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 60px;
  width: 80px;
  border-right: 3px solid var(--color-text-primary);
  background: var(--color-card-background);
  z-index: 10;
}

.x-axis {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  border-top: 3px solid var(--color-text-primary);
  background: var(--color-card-background);
  z-index: 10;
}

.axis-label {
  position: absolute;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-weight: 500;
  z-index: 15;
}

.y-label {
  left: 5px;
  transform: translateY(-50%);
  text-align: left;
  width: 70px;
  font-weight: 500;
  display: flex;
  align-items: center;
}

.x-label {
  bottom: 10px;
  transform: translateX(-50%);
  font-weight: 500;
}

.chart-area {
  position: absolute;
  top: 0;
  left: 80px;
  right: 0;
  bottom: 60px;
  overflow: hidden;
}

.grid-line {
  position: absolute;
  border-color: rgba(51, 51, 51, 0.1);
  border-style: dashed;
  border-width: 0;
  z-index: 1;
}

body.dark-mode .grid-line {
  border-color: rgba(255, 255, 255, 0.1);
}

.grid-line-horizontal {
  border-top-width: 1px;
  left: 0;
  right: 0;
}

.grid-line-vertical {
  border-left-width: 1px;
  top: 0;
  bottom: 0;
}

.type-line {
  position: absolute;
  height: 3px;
  background: var(--color-accent);
  border-radius: 1px;
  z-index: 5;
}

.point {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-card-background);
  border: 3px solid var(--color-accent);
  transform: translate(-50%, -50%);
  cursor: pointer;
  transition: all 0.2s;
  z-index: 20;
}

.point:hover {
  transform: translate(-50%, -50%) scale(1.2);
  border-color: var(--color-accent-dark);
}

.point-label {
  position: absolute;
  background: var(--color-card-background);
  color: var(--color-text-primary);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  white-space: nowrap;
  pointer-events: none;
  z-index: 100;
  border: 1px solid var(--color-border);
  box-shadow: var(--box-shadow-sm);
}

.type-scale-info {
  position: absolute;
  bottom: -40px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.viewport-marker {
  position: absolute;
  top: -20px;
  bottom: -40px;
  border-left: 2px dashed var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.75rem;
}

.viewport-label {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-card-background);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.multiplier-label {
  position: absolute;
  bottom: -35px;
  left: 50%;
  transform: translateX(-50%);
  font-weight: 500;
  color: var(--color-text-primary);
}

/* Tab Buttons Container */
.tab-buttons {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

body.dark-mode .input,
body.dark-mode .select {
  color: var(--color-text-primary);
  background-color: var(--color-card-background);
  border-color: var(--color-border);
}

body.dark-mode .input-suffix {
  color: var(--color-text-muted);
}

body.dark-mode .select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23a0a0a0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
}

body.dark-mode .type-scale-table th,
body.dark-mode .type-scale-table td {
  color: var(--color-text-primary); /* Ensure all table cell text is primary color */
}

body.dark-mode .type-scale-table th .input {
  color: var(--color-text-primary); /* Ensure input text color in table headers */
  background-color: var(--color-card-background);
}

body.dark-mode .type-scale-table th .text-muted {
  color: var(--color-text-muted); /* Keep muted text muted in dark mode */
}

body.dark-mode .type-scale-table td span.font-mono {
  color: var(--color-text-primary); /* Explicitly ensure font sizes change color */
}

body.dark-mode .bg-muted {
  background-color: var(--color-card-background); /* Highlighted row background */
  color: var(--color-text-primary); /* Highlighted row text color */
}

.viewport-config h3 {
  color: var(--color-text-primary);
}

.button.active {
  background: var(--color-accent, #3b82f6);
  color: #fff;
  border: 1.5px solid var(--color-accent-dark, #2563eb);
}

/* Custom yellow for active/selected state */
.tab-button.active,
.button.active {
  background-color: #ffc107 !important;
  border-color: #ffc107 !important;
  color: #222 !important;
}
.tab-button:hover,
.button:hover {
  background-color: #e0a800 !important;
  border-color: #e0a800 !important;
  color: #222 !important;
}
.tab-button:active,
.button:active {
  background-color: #b28704 !important;
  border-color: #b28704 !important;
  color: #222 !important;
}