:root {
  /* Primitive Color Tokens */
  --color-white: rgba(255, 255, 255, 1);
  --color-black: rgba(0, 0, 0, 1);
  --color-cream-50: rgba(252, 252, 249, 1);
  --color-cream-100: rgba(255, 255, 253, 1);
  --color-gray-200: rgba(245, 245, 245, 1);
  --color-gray-300: rgba(167, 169, 169, 1);
  --color-gray-400: rgba(119, 124, 124, 1);
  --color-slate-500: rgba(98, 108, 113, 1);
  --color-brown-600: rgba(94, 82, 64, 1);
  --color-charcoal-700: rgba(31, 33, 33, 1);
  --color-charcoal-800: rgba(38, 40, 40, 1);
  --color-slate-900: rgba(19, 52, 59, 1);
  --color-teal-300: rgba(50, 184, 198, 1);
  --color-teal-400: rgba(45, 166, 178, 1);
  --color-teal-500: rgba(33, 128, 141, 1);
  --color-teal-600: rgba(29, 116, 128, 1);
  --color-teal-700: rgba(26, 104, 115, 1);
  --color-teal-800: rgba(41, 150, 161, 1);
  --color-red-400: rgba(255, 84, 89, 1);
  --color-red-500: rgba(192, 21, 47, 1);
  --color-orange-400: rgba(230, 129, 97, 1);
  --color-orange-500: rgba(168, 75, 47, 1);

  /* RGB versions for opacity control */
  --color-brown-600-rgb: 94, 82, 64;
  --color-teal-500-rgb: 33, 128, 141;
  --color-slate-900-rgb: 19, 52, 59;
  --color-slate-500-rgb: 98, 108, 113;
  --color-red-500-rgb: 192, 21, 47;
  --color-red-400-rgb: 255, 84, 89;
  --color-orange-500-rgb: 168, 75, 47;
  --color-orange-400-rgb: 230, 129, 97;

  /* Background color tokens (Light Mode) */
  --color-bg-1: rgba(59, 130, 246, 0.08); /* Light blue */
  --color-bg-2: rgba(245, 158, 11, 0.08); /* Light yellow */
  --color-bg-3: rgba(34, 197, 94, 0.08); /* Light green */
  --color-bg-4: rgba(239, 68, 68, 0.08); /* Light red */
  --color-bg-5: rgba(147, 51, 234, 0.08); /* Light purple */
  --color-bg-6: rgba(249, 115, 22, 0.08); /* Light orange */
  --color-bg-7: rgba(236, 72, 153, 0.08); /* Light pink */
  --color-bg-8: rgba(6, 182, 212, 0.08); /* Light cyan */

  /* Semantic Color Tokens (Light Mode) */
  --color-background: var(--color-cream-50);
  --color-surface: var(--color-cream-100);
  --color-text: var(--color-slate-900);
  --color-text-secondary: var(--color-slate-500);
  --color-primary: var(--color-teal-500);
  --color-primary-hover: var(--color-teal-600);
  --color-primary-active: var(--color-teal-700);
  --color-secondary: rgba(var(--color-brown-600-rgb), 0.12);
  --color-secondary-hover: rgba(var(--color-brown-600-rgb), 0.2);
  --color-secondary-active: rgba(var(--color-brown-600-rgb), 0.25);
  --color-border: rgba(var(--color-brown-600-rgb), 0.2);
  --color-btn-primary-text: var(--color-cream-50);
  --color-card-border: rgba(var(--color-brown-600-rgb), 0.12);
  --color-card-border-inner: rgba(var(--color-brown-600-rgb), 0.12);
  --color-error: var(--color-red-500);
  --color-success: var(--color-teal-500);
  --color-warning: var(--color-orange-500);
  --color-info: var(--color-slate-500);
  --color-focus-ring: rgba(var(--color-teal-500-rgb), 0.4);
  --color-select-caret: rgba(var(--color-slate-900-rgb), 0.8);

  /* Common style patterns */
  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --status-bg-opacity: 0.15;
  --status-border-opacity: 0.25;
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  /* RGB versions for opacity control */
  --color-success-rgb: 33, 128, 141;
  --color-error-rgb: 192, 21, 47;
  --color-warning-rgb: 168, 75, 47;
  --color-info-rgb: 98, 108, 113;

  /* Typography */
  --font-family-base: "FKGroteskNeue", "Geist", "Inter", -apple-system,
    BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-family-mono: "Berkeley Mono", ui-monospace, SFMono-Regular, Menlo,
    Monaco, Consolas, monospace;
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-md: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;
  --font-size-4xl: 30px;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 550;
  --font-weight-bold: 600;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --letter-spacing-tight: -0.01em;

  /* Spacing */
  --space-0: 0;
  --space-1: 1px;
  --space-2: 2px;
  --space-4: 4px;
  --space-6: 6px;
  --space-8: 8px;
  --space-10: 10px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-base: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.04),
    0 2px 4px -1px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04),
    0 4px 6px -2px rgba(0, 0, 0, 0.02);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.15),
    inset 0 -1px 0 rgba(0, 0, 0, 0.03);

  /* Animation */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
}

/* Dark mode colors */
@media (prefers-color-scheme: dark) {
  :root {
    /* RGB versions for opacity control (Dark Mode) */
    --color-gray-400-rgb: 119, 124, 124;
    --color-teal-300-rgb: 50, 184, 198;
    --color-gray-300-rgb: 167, 169, 169;
    --color-gray-200-rgb: 245, 245, 245;

    /* Background color tokens (Dark Mode) */
    --color-bg-1: rgba(29, 78, 216, 0.15); /* Dark blue */
    --color-bg-2: rgba(180, 83, 9, 0.15); /* Dark yellow */
    --color-bg-3: rgba(21, 128, 61, 0.15); /* Dark green */
    --color-bg-4: rgba(185, 28, 28, 0.15); /* Dark red */
    --color-bg-5: rgba(107, 33, 168, 0.15); /* Dark purple */
    --color-bg-6: rgba(194, 65, 12, 0.15); /* Dark orange */
    --color-bg-7: rgba(190, 24, 93, 0.15); /* Dark pink */
    --color-bg-8: rgba(8, 145, 178, 0.15); /* Dark cyan */

    /* Semantic Color Tokens (Dark Mode) */
    --color-background: var(--color-charcoal-700);
    --color-surface: var(--color-charcoal-800);
    --color-text: var(--color-gray-200);
    --color-text-secondary: rgba(var(--color-gray-300-rgb), 0.7);
    --color-primary: var(--color-teal-300);
    --color-primary-hover: var(--color-teal-400);
    --color-primary-active: var(--color-teal-800);
    --color-secondary: rgba(var(--color-gray-400-rgb), 0.15);
    --color-secondary-hover: rgba(var(--color-gray-400-rgb), 0.25);
    --color-secondary-active: rgba(var(--color-gray-400-rgb), 0.3);
    --color-border: rgba(var(--color-gray-400-rgb), 0.3);
    --color-error: var(--color-red-400);
    --color-success: var(--color-teal-300);
    --color-warning: var(--color-orange-400);
    --color-info: var(--color-gray-300);
    --color-focus-ring: rgba(var(--color-teal-300-rgb), 0.4);
    --color-btn-primary-text: var(--color-slate-900);
    --color-card-border: rgba(var(--color-gray-400-rgb), 0.2);
    --color-card-border-inner: rgba(var(--color-gray-400-rgb), 0.15);
    --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.1),
      inset 0 -1px 0 rgba(0, 0, 0, 0.15);
    --button-border-secondary: rgba(var(--color-gray-400-rgb), 0.2);
    --color-border-secondary: rgba(var(--color-gray-400-rgb), 0.2);
    --color-select-caret: rgba(var(--color-gray-200-rgb), 0.8);

    /* Common style patterns - updated for dark mode */
    --focus-ring: 0 0 0 3px var(--color-focus-ring);
    --focus-outline: 2px solid var(--color-primary);
    --status-bg-opacity: 0.15;
    --status-border-opacity: 0.25;
    --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

    /* RGB versions for dark mode */
    --color-success-rgb: var(--color-teal-300-rgb);
    --color-error-rgb: var(--color-red-400-rgb);
    --color-warning-rgb: var(--color-orange-400-rgb);
    --color-info-rgb: var(--color-gray-300-rgb);
  }
}

/* Data attribute for manual theme switching */
[data-color-scheme="dark"] {
  /* RGB versions for opacity control (dark mode) */
  --color-gray-400-rgb: 119, 124, 124;
  --color-teal-300-rgb: 50, 184, 198;
  --color-gray-300-rgb: 167, 169, 169;
  --color-gray-200-rgb: 245, 245, 245;

  /* Colorful background palette - Dark Mode */
  --color-bg-1: rgba(29, 78, 216, 0.15); /* Dark blue */
  --color-bg-2: rgba(180, 83, 9, 0.15); /* Dark yellow */
  --color-bg-3: rgba(21, 128, 61, 0.15); /* Dark green */
  --color-bg-4: rgba(185, 28, 28, 0.15); /* Dark red */
  --color-bg-5: rgba(107, 33, 168, 0.15); /* Dark purple */
  --color-bg-6: rgba(194, 65, 12, 0.15); /* Dark orange */
  --color-bg-7: rgba(190, 24, 93, 0.15); /* Dark pink */
  --color-bg-8: rgba(8, 145, 178, 0.15); /* Dark cyan */

  /* Semantic Color Tokens (Dark Mode) */
  --color-background: var(--color-charcoal-700);
  --color-surface: var(--color-charcoal-800);
  --color-text: var(--color-gray-200);
  --color-text-secondary: rgba(var(--color-gray-300-rgb), 0.7);
  --color-primary: var(--color-teal-300);
  --color-primary-hover: var(--color-teal-400);
  --color-primary-active: var(--color-teal-800);
  --color-secondary: rgba(var(--color-gray-400-rgb), 0.15);
  --color-secondary-hover: rgba(var(--color-gray-400-rgb), 0.25);
  --color-secondary-active: rgba(var(--color-gray-400-rgb), 0.3);
  --color-border: rgba(var(--color-gray-400-rgb), 0.3);
  --color-error: var(--color-red-400);
  --color-success: var(--color-teal-300);
  --color-warning: var(--color-orange-400);
  --color-info: var(--color-gray-300);
  --color-focus-ring: rgba(var(--color-teal-300-rgb), 0.4);
  --color-btn-primary-text: var(--color-slate-900);
  --color-card-border: rgba(var(--color-gray-400-rgb), 0.15);
  --color-card-border-inner: rgba(var(--color-gray-400-rgb), 0.15);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.1),
    inset 0 -1px 0 rgba(0, 0, 0, 0.15);
  --color-border-secondary: rgba(var(--color-gray-400-rgb), 0.2);
  --color-select-caret: rgba(var(--color-gray-200-rgb), 0.8);

  /* Common style patterns - updated for dark mode */
  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --status-bg-opacity: 0.15;
  --status-border-opacity: 0.25;
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  /* RGB versions for dark mode */
  --color-success-rgb: var(--color-teal-300-rgb);
  --color-error-rgb: var(--color-red-400-rgb);
  --color-warning-rgb: var(--color-orange-400-rgb);
  --color-info-rgb: var(--color-gray-300-rgb);
}

[data-color-scheme="light"] {
  /* RGB versions for opacity control (light mode) */
  --color-brown-600-rgb: 94, 82, 64;
  --color-teal-500-rgb: 33, 128, 141;
  --color-slate-900-rgb: 19, 52, 59;

  /* Semantic Color Tokens (Light Mode) */
  --color-background: var(--color-cream-50);
  --color-surface: var(--color-cream-100);
  --color-text: var(--color-slate-900);
  --color-text-secondary: var(--color-slate-500);
  --color-primary: var(--color-teal-500);
  --color-primary-hover: var(--color-teal-600);
  --color-primary-active: var(--color-teal-700);
  --color-secondary: rgba(var(--color-brown-600-rgb), 0.12);
  --color-secondary-hover: rgba(var(--color-brown-600-rgb), 0.2);
  --color-secondary-active: rgba(var(--color-brown-600-rgb), 0.25);
  --color-border: rgba(var(--color-brown-600-rgb), 0.2);
  --color-btn-primary-text: var(--color-cream-50);
  --color-card-border: rgba(var(--color-brown-600-rgb), 0.12);
  --color-card-border-inner: rgba(var(--color-brown-600-rgb), 0.12);
  --color-error: var(--color-red-500);
  --color-success: var(--color-teal-500);
  --color-warning: var(--color-orange-500);
  --color-info: var(--color-slate-500);
  --color-focus-ring: rgba(var(--color-teal-500-rgb), 0.4);

  /* RGB versions for light mode */
  --color-success-rgb: var(--color-teal-500-rgb);
  --color-error-rgb: var(--color-red-500-rgb);
  --color-warning-rgb: var(--color-orange-500-rgb);
  --color-info-rgb: var(--color-slate-500-rgb);
}

/* Base styles */
html {
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  letter-spacing: var(--letter-spacing-tight);
}

h1 {
  font-size: var(--font-size-4xl);
}
h2 {
  font-size: var(--font-size-3xl);
}
h3 {
  font-size: var(--font-size-2xl);
}
h4 {
  font-size: var(--font-size-xl);
}
h5 {
  font-size: var(--font-size-lg);
}
h6 {
  font-size: var(--font-size-md);
}

p {
  margin: 0 0 var(--space-16) 0;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-standard);
}

a:hover {
  color: var(--color-primary-hover);
}

code,
pre {
  font-family: var(--font-family-mono);
  font-size: calc(var(--font-size-base) * 0.95);
  background-color: var(--color-secondary);
  border-radius: var(--radius-sm);
}

code {
  padding: var(--space-1) var(--space-4);
}

pre {
  padding: var(--space-16);
  margin: var(--space-16) 0;
  overflow: auto;
  border: 1px solid var(--color-border);
}

pre code {
  background: none;
  padding: 0;
}


/* Buttons */
.button-group {
  display: flex;
  justify-content: space-between;
  gap: var(--space-16);
  margin-top: var(--space-16);
}

@media (max-width: 640px) {
  .button-group {
    flex-direction: column;
  }
  
  .button-group button {
    width: 100%;
  }
}

.remove-entry {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-lg);
  font-weight: 500;
  line-height: 1;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-error);
  padding: 0;
  margin-left: var(--space-8);
}

.remove-entry:hover {
  background: rgba(var(--color-error-rgb), 0.1);
  border-color: var(--color-error);
}

.remove-entry:active {
  background: rgba(var(--color-error-rgb), 0.2);
}

.remove-entry:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.add-entry-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  font-weight: 500;
  line-height: 1.5;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  margin-right: var(--space-12);
}

.add-entry-btn:hover {
  background: var(--color-secondary);
}

.add-entry-btn:active {
  background: var(--color-secondary-active);
}

.add-entry-btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  font-weight: 500;
  line-height: 1.5;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  border: none;
  text-decoration: none;
  position: relative;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

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

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

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

.btn--secondary {
  background: var(--color-secondary);
  color: var(--color-text);
}

.btn--secondary:hover {
  background: var(--color-secondary-hover);
}

.btn--secondary:active {
  background: var(--color-secondary-active);
}

.btn--outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.btn--outline:hover {
  background: var(--color-secondary);
}

.btn--sm {
  padding: var(--space-4) var(--space-12);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.btn--lg {
  padding: var(--space-10) var(--space-20);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-md);
}

.btn--full-width {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Form elements */
.form-control {
  display: block;
  width: 100%;
  padding: var(--space-8) var(--space-12);
  font-size: var(--font-size-md);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  transition: border-color var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard);
}

textarea.form-control {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
}

select.form-control {
  padding: var(--space-8) var(--space-12);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: var(--select-caret-light);
  background-repeat: no-repeat;
  background-position: right var(--space-12) center;
  background-size: 16px;
  padding-right: var(--space-32);
}

/* Add a dark mode specific caret */
@media (prefers-color-scheme: dark) {
  select.form-control {
    background-image: var(--select-caret-dark);
  }
}

/* Also handle data-color-scheme */
[data-color-scheme="dark"] select.form-control {
  background-image: var(--select-caret-dark);
}

[data-color-scheme="light"] select.form-control {
  background-image: var(--select-caret-light);
}

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

.form-label {
  display: block;
  margin-bottom: var(--space-8);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.form-group {
  margin-bottom: var(--space-16);
}

/* Card component */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--duration-normal) var(--ease-standard);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card__body {
  padding: var(--space-16);
}

.card__header,
.card__footer {
  padding: var(--space-16);
  border-bottom: 1px solid var(--color-card-border-inner);
}

/* Status indicators - simplified with CSS variables */
.status {
  display: inline-flex;
  align-items: center;
  padding: var(--space-6) var(--space-12);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.status--success {
  background-color: rgba(
    var(--color-success-rgb, 33, 128, 141),
    var(--status-bg-opacity)
  );
  color: var(--color-success);
  border: 1px solid
    rgba(var(--color-success-rgb, 33, 128, 141), var(--status-border-opacity));
}

.status--error {
  background-color: rgba(
    var(--color-error-rgb, 192, 21, 47),
    var(--status-bg-opacity)
  );
  color: var(--color-error);
  border: 1px solid
    rgba(var(--color-error-rgb, 192, 21, 47), var(--status-border-opacity));
}

.status--warning {
  background-color: rgba(
    var(--color-warning-rgb, 168, 75, 47),
    var(--status-bg-opacity)
  );
  color: var(--color-warning);
  border: 1px solid
    rgba(var(--color-warning-rgb, 168, 75, 47), var(--status-border-opacity));
}

.status--info {
  background-color: rgba(
    var(--color-info-rgb, 98, 108, 113),
    var(--status-bg-opacity)
  );
  color: var(--color-info);
  border: 1px solid
    rgba(var(--color-info-rgb, 98, 108, 113), var(--status-border-opacity));
}

/* Container layout */
.container {
  width: 100%;
  margin-right: auto;
  margin-left: auto;
  padding-right: var(--space-16);
  padding-left: var(--space-16);
}

@media (min-width: 640px) {
  .container {
    max-width: var(--container-sm);
  }
}
@media (min-width: 768px) {
  .container {
    max-width: var(--container-md);
  }
}
@media (min-width: 1024px) {
  .container {
    max-width: var(--container-lg);
  }
}
@media (min-width: 1280px) {
  .container {
    max-width: var(--container-xl);
  }
}

/* Utility classes */
.flex {
  display: flex;
}
.flex-col {
  flex-direction: column;
}
.items-center {
  align-items: center;
}
.justify-center {
  justify-content: center;
}
.justify-between {
  justify-content: space-between;
}
.gap-4 {
  gap: var(--space-4);
}
.gap-8 {
  gap: var(--space-8);
}
.gap-16 {
  gap: var(--space-16);
}

.m-0 {
  margin: 0;
}
.mt-8 {
  margin-top: var(--space-8);
}
.mb-8 {
  margin-bottom: var(--space-8);
}
.mx-8 {
  margin-left: var(--space-8);
  margin-right: var(--space-8);
}
.my-8 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-8);
}

.p-0 {
  padding: 0;
}
.py-8 {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}
.px-8 {
  padding-left: var(--space-8);
  padding-right: var(--space-8);
}
.py-16 {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}
.px-16 {
  padding-left: var(--space-16);
  padding-right: var(--space-16);
}

.block {
  display: block;
}
.hidden {
  display: none;
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

/* Dark mode specifics */
[data-color-scheme="dark"] .btn--outline {
  border: 1px solid var(--color-border-secondary);
}

@font-face {
  font-family: 'FKGroteskNeue';
  src: url('https://r2cdn.perplexity.ai/fonts/FKGroteskNeue.woff2')
    format('woff2');
}

/* =====================================================*/
/* NEW CALCULATOR-SPECIFIC STYLES */
/* =====================================================*/

/* Unit Selector */
.unit-selector {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  margin-bottom: var(--space-24);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  padding: var(--space-4);
  max-width: 250px;
  margin-left: auto;
  margin-right: auto;
  background-color: var(--color-secondary);
}

.unit-btn {
  flex: 1;
  padding: var(--space-8) var(--space-16);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  font-family: inherit;
}

.unit-btn:hover {
  background: var(--color-secondary-hover);
  color: var(--color-text);
}

.unit-btn.active {
  background: var(--color-surface);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}


/* Calculator container and form styling */
.calculator-container {
  margin-bottom: var(--space-32);
}

.calculator {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-32);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
}

.calculator h1 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--space-8);
  text-align: center;
}

.calculator-description {
  color: var(--color-text-secondary);
  text-align: center;
  margin-bottom: var(--space-32);
  font-size: var(--font-size-lg);
}

/* Input group styling */
.input-group {
  margin-bottom: var(--space-20);
}

.input-group label {
  display: block;
  margin-bottom: var(--space-8);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  font-size: var(--font-size-base);
}

.input-group input,
.input-group select {
  width: 100%;
  padding: var(--space-12) var(--space-16);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background-color: var(--color-surface);
  transition: border-color var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard);
  font-family: inherit;
}

.input-group input:focus,
.input-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--focus-ring);
}

.input-group select {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: var(--select-caret-light);
  background-repeat: no-repeat;
  background-position: right var(--space-12) center;
  background-size: 16px;
  padding-right: var(--space-32);
}

@media (prefers-color-scheme: dark) {
  .input-group select {
    background-image: var(--select-caret-dark);
  }
}

[data-color-scheme="dark"] .input-group select {
  background-image: var(--select-caret-dark);
}

[data-color-scheme="light"] .input-group select {
  background-image: var(--select-caret-light);
}

/* Button styling enhancements */
.btn-large {
  padding: var(--space-16) var(--space-32);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  width: 100%;
  margin-top: var(--space-24);
}

/* Navigation */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-16) 0;
  margin-bottom: var(--space-32);
  border-bottom: 1px solid var(--color-card-border);
}

.nav-brand {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-standard);
}

.nav-brand:hover {
  color: var(--color-primary-hover);
}

/* Button groups for tip and tax calculators */
.tip-buttons,
.tax-buttons {
  display: flex;
  gap: var(--space-8);
  margin: var(--space-16) 0;
  flex-wrap: wrap;
}

.tip-btn,
.tax-btn {
  padding: var(--space-8) var(--space-16);
  background: var(--color-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  font-family: inherit;
}

.tip-btn:hover,
.tax-btn:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-btn-primary-text);
  transform: translateY(-1px);
}

.tip-btn.active,
.tax-btn.active {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  border-color: var(--color-primary);
}

.tip-btn:focus,
.tax-btn:focus {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

/* Result sections styling */
.result-section {
  background: var(--color-bg-1);
  border: 1px solid var(--color-card-border-inner);
  border-radius: var(--radius-base);
  padding: var(--space-24);
  margin-top: var(--space-24);
  animation: fadeInUp var(--duration-normal) var(--ease-standard);
}

.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-12) 0;
  border-bottom: 1px solid var(--color-card-border-inner);
}

.result-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.result-value {
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  font-size: var(--font-size-lg);
}

.result-value.positive {
  color: var(--color-success);
}

.result-value.negative {
  color: var(--color-error);
}

.result-value.neutral {
  color: var(--color-primary);
}

/* Quick examples sections */
.quick-examples {
  margin-top: var(--space-24);
  padding-top: var(--space-20);
  border-top: 1px solid var(--color-card-border-inner);
}

.quick-examples h4 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-16);
}

.example-item {
  display: flex;
  justify-content: space-between;
  padding: var(--space-8) 0;
  font-size: var(--font-size-sm);
}

.example-item span:first-child {
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

.example-item span:last-child {
  color: var(--color-text);
  text-align: right;
  margin-left: var(--space-16);
}

/* Course inputs for GPA calculator */
.course-inputs {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
  margin: var(--space-20) 0;
}

.course-row {
  padding: var(--space-16);
  background: var(--color-secondary);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-border);
}

.course-inputs-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-16);
  align-items: end;
}

/* Info card styling for articles */
.info-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-32);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
}

.info-card h2 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--space-20);
  line-height: var(--line-height-tight);
}

.info-card h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin: var(--space-32) 0 var(--space-16) 0;
  line-height: var(--line-height-tight);
}

.info-card h4 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin: var(--space-24) 0 var(--space-12) 0;
  line-height: var(--line-height-tight);
}

.info-card p {
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
  margin-bottom: var(--space-16);
  font-size: var(--font-size-base);
}

.info-card p strong {
  color: var(--color-text);
  font-weight: var(--font-weight-semibold);
}

.info-card .formula {
  background: var(--color-bg-2);
  border: 1px solid var(--color-card-border-inner);
  border-radius: var(--radius-sm);
  padding: var(--space-16);
  margin: var(--space-20) 0;
  font-family: var(--font-family-mono);
  font-size: var(--font-size-base);
  color: var(--color-text);
  text-align: center;
  font-weight: var(--font-weight-medium);
}

/* Ordered lists styling */
.info-card ol.steps-list {
  counter-reset: step-counter;
  list-style: none;
  padding-left: 0;
  margin: var(--space-20) 0;
}

.info-card ol.steps-list li {
  counter-increment: step-counter;
  margin-bottom: var(--space-20);
  padding-left: calc(var(--space-32) + var(--space-16));
  position: relative;
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
}

.info-card ol.steps-list li::before {
  content: counter(step-counter);
  position: absolute;
  left: 0;
  top: 0;
  width: var(--space-32);
  height: var(--space-32);
  background-color: var(--color-primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-btn-primary-text);
}

.info-card ol.steps-list li strong {
  display: block;
  color: var(--color-text);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-8);
}

/* Age calculator and other specific input toggles */
#metric-inputs,
#imperial-inputs,
#age-inputs,
#date-diff-inputs,
#add-time-inputs,
#add-tax-inputs,
#remove-tax-inputs,
#find-rate-inputs {
  margin-top: var(--space-16);
}

#imperial-inputs {
  display: block; /* Default to showing imperial */
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(var(--space-16));
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===================================================================*/
/* ORIGINAL AND GLOBAL STYLES (NO CHANGES ABOVE THIS LINE) */
/* ===================================================================*/

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  font-size: var(--font-size-base);
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--container-lg);
  margin: 0 auto;
  padding: var(--space-32) var(--space-20);
}

/* Header */
.header {
  text-align: center;
  margin-bottom: var(--space-32);
}

.header h1 {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--space-12);
  letter-spacing: var(--letter-spacing-tight);
}

.subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-normal);
  margin-bottom: 0;
}

/* Navigation Tabs for individual calculator pages */
.calculator-nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-12);
  margin-bottom: var(--space-32);
}

.nav-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-16) var(--space-12);
  background-color: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-base);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  font-family: inherit;
  text-align: center;
  box-shadow: var(--shadow-xs);
}

.nav-tab:hover {
  background-color: var(--color-secondary);
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.nav-tab.active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.nav-tab.active .nav-title,
.nav-tab.active .nav-desc {
  color: var(--color-btn-primary-text);
}

.nav-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-4);
  line-height: var(--line-height-tight);
}

.nav-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-tight);
}

/* Calculator Sections */
.calculator-section {
  display: none;
}

.calculator-section.active {
  display: block;
}

/* Calculator Form */
.calculator-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-24);
  margin-bottom: var(--space-32);
  align-items: end;
}

#imperial-inputs, #metric-inputs {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-24);
}

/* Fix for button alignment on forms with an odd number of inputs */
.calculator-form .input-group:last-of-type:nth-child(odd) {
    grid-column: 1 / -1;
}

.input-group input {
  width: 100%;
  padding: var(--space-16);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  outline: none;
  font-family: inherit;
  transition: border-color var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard);
}

.input-group input:focus {
  border-color: var(--color-primary);
  box-shadow: var(--focus-ring);
}

.input-group input::placeholder {
  color: var(--color-text-secondary);
  opacity: 0.7;
}

.clear-btn {
  padding: var(--space-16) var(--space-24);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background-color: var(--color-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  cursor: pointer;
  font-family: inherit;
  font-weight: var(--font-weight-medium);
  transition: all var(--duration-normal) var(--ease-standard);
  height: fit-content;
}

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

.clear-btn:focus {
  outline: var(--focus-outline);
  outline-offset: 2px;
  box-shadow: var(--focus-ring);
}

/* Results */
.results {
  background-color: var(--color-bg-1);
  border: 1px solid var(--color-card-border-inner);
  border-radius: var(--radius-base);
  padding: var(--space-24);
  margin-bottom: var(--space-24);
}

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-16);
}

.result-row:last-child {
  margin-bottom: 0;
}

.result-label {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
}

/* Error Message */
.error-message {
  padding: var(--space-16);
  background-color: rgba(var(--color-error-rgb), var(--status-bg-opacity));
  border: 1px solid rgba(var(--color-error-rgb), var(--status-border-opacity));
  border-radius: var(--radius-base);
  color: var(--color-error);
  font-size: var(--font-size-base);
  margin-bottom: var(--space-24);
}

.formula {
  padding: var(--space-16);
  background-color: var(--color-bg-2);
  border: 1px solid var(--color-card-border-inner);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-base);
  color: var(--color-text);
  text-align: center;
  font-family: var(--font-family-mono);
  font-weight: var(--font-weight-medium);
}

/* Sticky Nav for main page */
.sticky-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-card-border);
    padding: 0.5rem 0;
    overflow-x: auto;
    white-space: nowrap;
    -ms-overflow-style: none;  /* IE and Edge */
    scrollbar-width: none;  /* Firefox */
}
.sticky-nav::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}
.sticky-nav a {
    color: var(--color-text-secondary);
    text-decoration: none;
    margin: 0 0.75rem;
    font-size: 0.9rem;
    font-weight: 500;
    display: inline-block;
    padding: 0.5rem 0.25rem;
}
.sticky-nav a:hover,
.sticky-nav a:focus {
    color: var(--color-primary);
}

/* Footer */
.footer {
  text-align: center;
  padding-top: var(--space-32);
  margin-top: var(--space-32);
  border-top: 1px solid var(--color-card-border);
}

.footer p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  margin: 0;
}

/* ===================================================================*/
/* GRID AND CARD STYLES - WITH NEW MOBILE-FIRST IMPROVEMENTS */
/* ===================================================================*/

.category-title {
  margin-bottom: 1.5rem;
}

/* MOBILE-FIRST GRID: Default to 2 columns on small screens */
.calculators-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-12); /* Tighter gap for mobile */
  margin-bottom: var(--space-24);
}

.calculator-card, a.see-more-card {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-16);
  text-align: center;
  transition: all var(--duration-normal) var(--ease-standard);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-decoration: none;
}

.calculator-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.calculator-card h3 {
  color: var(--color-text);
  font-size: var(--font-size-lg); /* Slightly smaller title for mobile cards */
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-8);
  line-height: var(--line-height-tight);
}

/* MOBILE-FIRST TYPOGRAPHY: More readable text on small screens */
.calculator-card p {
  color: var(--color-text-secondary);
  font-size: 13px; /* Slightly smaller font size */
  line-height: 1.6; /* Increased line height */
  margin-bottom: var(--space-16);
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 4; /* Allow more lines if needed in 2-col layout */
  line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  text-decoration: none;
  padding: var(--space-10) var(--space-16); /* Slightly smaller button */
  border-radius: var(--radius-base);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm); /* Smaller button text */
  transition: all var(--duration-normal) var(--ease-standard);
  margin-top: auto;
}

.card-button:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* See More Card Style */
a.see-more-card {
    justify-content: center;
    align-items: center;
    background: var(--color-secondary);
    border: 2px dashed var(--color-border);
    color: var(--color-text-secondary);
}

a.see-more-card:hover {
    background: var(--color-secondary-hover);
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-6px) scale(1.02);
    box-shadow: 0 8px 24px rgba(25,155,155,0.08), 0 1.5px 8px rgba(0,0,0,0.04);
}

a.see-more-card i {
    font-size: 32px; /* Adjusted icon size */
    margin-bottom: var(--space-12);
}

a.see-more-card h3 {
    font-size: var(--font-size-lg); /* Match card titles */
    font-weight: var(--font-weight-semibold);
    color: inherit;
}

/* DESKTOP VIEW: Switch to 4 columns and restore original styles */
@media (min-width: 1024px) {
  .calculators-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-24); /* Wider gap for desktop */
    margin: 0px 0px 32px;
  }

  .calculator-card, a.see-more-card {
      padding: 32px 20px;
      min-height: 260px;
  }
  
  .calculator-card h3 {
      font-size: 1.3rem; /* Restore original H3 size */
      margin-bottom: 16px;
  }

  .calculator-card p {
      font-size: 1rem; /* Restore original font size */
      line-height: var(--line-height-normal); /* Restore original line-height */
      margin-bottom: 28px;
      -webkit-line-clamp: 3; /* Restore line clamp */
      line-clamp: 3;
      min-height: 4.5em;
  }
  
  .card-button {
      padding: var(--space-12) var(--space-24); /* Restore button size */
      font-size: var(--font-size-base); /* Restore button text size */
  }

  a.see-more-card i {
      font-size: 48px;
  }
  
  a.see-more-card h3 {
      font-size: var(--font-size-xl);
  }
}

/* RESPONSIVE TWEAKS for very small screens */
@media (max-width: 360px) {
    .calculators-grid {
        gap: var(--space-8);
    }
    .calculator-card, a.see-more-card {
        padding: var(--space-12);
    }
    .calculator-card h3 {
      font-size: var(--font-size-base);
    }
    .card-button {
      padding: var(--space-8) var(--space-12);
    }
}


/* Floating Action Button & Search Widget Styles */
.fab-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 12px;
    z-index: 1000;
}

.fab {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background-color: var(--color-primary);
    color: var(--color-btn-primary-text);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: all var(--duration-normal) var(--ease-standard);
}

.fab:hover {
    background-color: var(--color-primary-hover);
    transform: scale(1.05);
}

.back-to-top {
    opacity: 0;
    transform: translateY(100px);
    transition: opacity 0.3s, transform 0.3s;
}

.back-to-top.show {
    opacity: 1;
    transform: translateY(0);
}

/* Search Widget Specifics */
.search-widget {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    position: relative;
}

.search-widget .search-input {
    width: 0;
    height: 56px;
    padding: 0;
    border: none;
    outline: none;
    border-radius: 28px;
    transition: all 0.4s var(--ease-standard);
    font-size: var(--font-size-lg);
    background-color: var(--color-surface);
    color: var(--color-text);
    box-shadow: var(--shadow-md);
    direction: rtl; /* Text input from right to left */
}

.search-widget.active .search-input {
    width: 300px;
    padding: 0 65px 0 20px; 
    border: 1px solid var(--color-border);
}

.search-widget .fab {
    position: absolute;
    right: 0;
    z-index: 1;
}

.search-widget.active .fab {
     background-color: transparent;
     color: var(--color-text-secondary);
}

.search-widget.active .fab:hover {
     color: var(--color-primary);
     transform: scale(1.05); /* keep hover effect */
}

/* New style for currency selector */
.currency-selector-group {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    max-width: 300px;
}

.currency-selector-group label { 
    margin-bottom: 0;
    font-weight: 500;
    white-space: nowrap;
}

.currency-selector-group select {
    width: 100%;
}

/* ===================================================================*/
/* MOBILE RESPONSIVENESS FOR CALCULATOR FORMS                      */
/* ===================================================================*/

@media (max-width: 640px) {
  .calculator-form {
    grid-template-columns: 1fr;
    gap: var(--space-20); /* Slightly reduce gap for mobile */
  }

  .course-inputs-row {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }

  .clear-btn {
    width: 100%; /* Make clear button full width */
  }

  .input-group {
    margin-bottom: 0; /* Remove bottom margin as grid gap handles it */
  }
}


/* ===================================================================*/
/* CHART STYLES - WITH NEW MOBILE-FIRST IMPROVEMENTS */
/* ===================================================================*/

.chart-container {
    margin-top: var(--space-32);
    padding-top: var(--space-24);
    border-top: 1px solid var(--color-card-border-inner);
}

.chart-container h3 {
    text-align: center;
    margin-bottom: var(--space-24);
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
}

.chart-wrapper {
    position: relative;
    margin: 0 auto var(--space-32) auto;
    max-width: 100%;
    width: 100%;
}

/* For pie/doughnut charts, we can suggest a max size */
.pie-chart-wrapper, .doughnut-chart-wrapper {
    max-width: 400px;
    height: auto; /* let aspect ratio work */
    aspect-ratio: 1 / 1;
}

/* For bar/line charts, we want them to be wider */
.bar-chart-wrapper, .line-chart-wrapper {
    height: 300px; /* mobile height */
}


@media (min-width: 768px) {
    .bar-chart-wrapper, .line-chart-wrapper {
        height: 400px; /* desktop height */
    }
}