: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 */
.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');
}

/* END PERPLEXITY DESIGN SYSTEM */
: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;
}

@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);

    /* 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);
  }
}

/* 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);
}

/* Buttons */
.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);
}

/* 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);
  resize: vertical;
}

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);
}

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

.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);
}

.form-help {
  display: block;
  margin-top: var(--space-4);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

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

/* Header */
.header {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
  color: var(--color-btn-primary-text);
  padding: var(--space-24) 0;
  margin-bottom: var(--space-32);
}

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

.header-title {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-8);
  color: var(--color-btn-primary-text);
}

.header-subtitle {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.9);
  margin: 0;
}

/* Main layout */
.main-content {
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: var(--space-32);
  align-items: start;
}

/* Forms column */
.forms-column {
  display: flex;
  flex-direction: column;
  gap: var(--space-24);
}

/* Section styling */
.section {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  padding: var(--space-24);
  box-shadow: var(--shadow-sm);
}

.section-title {
  font-size: var(--font-size-2xl);
  color: var(--color-text);
  margin-bottom: var(--space-20);
  padding-bottom: var(--space-8);
  border-bottom: 2px solid var(--color-primary);
}

/* ============================================
   COMPANY INFO SECTION - ENHANCED DESIGN
   ============================================ */

.company-info-section {
  background: linear-gradient(135deg, var(--color-bg-1) 0%, var(--color-surface) 100%);
  border: 2px solid var(--color-primary);
  position: relative;
  overflow: hidden;
}

.company-info-section::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(33, 128, 141, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  transform: translate(50%, -50%);
  pointer-events: none;
}

.company-header {
  display: flex;
  align-items: center;
  gap: var(--space-20);
  margin-bottom: var(--space-24);
  padding: var(--space-20);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.company-logo-box {
  position: relative;
  width: 80px;
  height: 80px;
  flex-shrink: 0;
}

.company-logo-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
  border-radius: var(--radius-base);
  transition: transform 0.3s ease;
}

.company-logo-img:hover {
  transform: scale(1.05);
}

.company-logo-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
  border-radius: var(--radius-base);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(33, 128, 141, 0.3);
}

.logo-text {
  font-size: 32px;
  font-weight: var(--font-weight-bold);
  color: white;
  letter-spacing: -1px;
}

.company-name-display {
  flex: 1;
}

.company-brand-name {
  font-size: 32px;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin: 0 0 var(--space-4) 0;
  letter-spacing: -0.5px;
  line-height: 1;
  text-transform: uppercase;
}

.company-brand-tagline {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
  font-style: italic;
  font-weight: var(--font-weight-medium);
}

.company-details-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-20);
  margin-top: var(--space-24);
}

.company-details-grid .form-label {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

.label-icon {
  font-size: 18px;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
}

.company-details-grid .form-control {
  border: 2px solid var(--color-border);
  font-weight: var(--font-weight-medium);
  background: var(--color-surface);
  transition: all 0.2s ease;
}

.company-details-grid .form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(33, 128, 141, 0.1);
  transform: translateY(-2px);
}

/* Dark mode adjustments */
[data-color-scheme="dark"] .company-info-section {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.02) 0%, var(--color-surface) 100%);
}

[data-color-scheme="dark"] .company-brand-name {
  color: var(--color-teal-400);
}

[data-color-scheme="dark"] .company-header {
  background: rgba(255, 255, 255, 0.02);
  border-color: rgba(255, 255, 255, 0.1);
}

/* Responsive */
@media (max-width: 768px) {
  .company-header {
    flex-direction: column;
    text-align: center;
    padding: var(--space-16);
  }
  
  .company-logo-box {
    width: 70px;
    height: 70px;
  }
  
  .company-brand-name {
    font-size: 26px;
  }
  
  .company-details-grid {
    grid-template-columns: 1fr;
    gap: var(--space-16);
  }
}

@media (max-width: 480px) {
  .company-logo-box {
    width: 60px;
    height: 60px;
  }
  
  .logo-text {
    font-size: 24px;
  }
  
  .company-brand-name {
    font-size: 22px;
  }
}

/* Form grid */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-16);
}

.form-group.full-width {
  grid-column: 1 / -1;
}

/* Calculation displays */
.calculation-display {
  margin-top: var(--space-16);
  padding: var(--space-12);
  background-color: var(--color-bg-1);
  border-radius: var(--radius-base);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.calculation-label {
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

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

/* Materials table */
.materials-container {
  overflow-x: auto;
}

.materials-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-16);
}

.materials-table th,
.materials-table td {
  padding: var(--space-8);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.materials-table th {
  font-weight: var(--font-weight-semibold);
  background-color: var(--color-bg-2);
  font-size: var(--font-size-sm);
}

.materials-table .form-control {
  margin: 0;
  font-size: var(--font-size-sm);
  padding: var(--space-4) var(--space-8);
}

.material-total {
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
}

.remove-material {
  background: var(--color-error);
  color: var(--color-white);
  border: none;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  cursor: pointer;
}

.remove-material:hover {
  opacity: 0.8;
}

/* Profit slider */
.profit-slider {
  width: 100%;
  margin: var(--space-8) 0;
}

.slider-value {
  display: inline-block;
  margin-left: var(--space-8);
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
}

/* Action buttons */
.actions {
  text-align: center;
}

.action-buttons {
  display: flex;
  gap: var(--space-12);
  justify-content: center;
  flex-wrap: wrap;
}

.action-buttons .btn {
  min-width: 150px;
}

/* Summary column */
.summary-column {
  position: sticky;
  top: var(--space-24);
}

.summary-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  padding: var(--space-24);
  box-shadow: var(--shadow-md);
}

.summary-title {
  font-size: var(--font-size-2xl);
  color: var(--color-text);
  margin-bottom: var(--space-20);
  text-align: center;
  padding-bottom: var(--space-8);
  border-bottom: 2px solid var(--color-primary);
}

.summary-items {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.summary-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-8) 0;
}

.summary-item.grand-total {
  margin-top: var(--space-16);
  padding-top: var(--space-16);
  border-top: 2px solid var(--color-primary);
}

.summary-label {
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

.summary-value {
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.grand-total .summary-label,
.grand-total .summary-value {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
}

/* Responsive design */
@media (max-width: 1200px) {
  .main-content {
    grid-template-columns: 1fr;
    gap: var(--space-24);
  }
  
  .summary-column {
    position: static;
    order: -1;
  }
}

@media (max-width: 768px) {
  .container {
    padding-right: var(--space-12);
    padding-left: var(--space-12);
  }
  
  .header {
    padding: var(--space-16) 0;
  }
  
  .header-title {
    font-size: var(--font-size-3xl);
  }
  
  .section {
    padding: var(--space-16);
  }
  
  .form-grid {
    grid-template-columns: 1fr;
  }
  
  .materials-table {
    font-size: var(--font-size-sm);
  }
  
  .action-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .action-buttons .btn {
    width: 100%;
    max-width: 300px;
  }
}

@media (max-width: 480px) {
  .header-title {
    font-size: var(--font-size-2xl);
  }
  
  .section-title {
    font-size: var(--font-size-xl);
  }
  
  .summary-title {
    font-size: var(--font-size-xl);
  }
}

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

/* ============================================
   ESTILOS ADICIONALES PARA HVAC CALCULATOR PRO
   ============================================ */

/* Agregar estos estilos AL FINAL de tu style.css existente */

/* ============================================
   HEADER ENHANCEMENTS
   ============================================ */

.header {
  position: relative;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-12);
}

.header-actions {
  display: flex;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.autosave-indicator {
  position: absolute;
  top: var(--space-8);
  right: var(--space-16);
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-6) var(--space-12);
  background-color: var(--color-success);
  color: white;
  border-radius: var(--radius-base);
  font-size: var(--font-size-sm);
  opacity: 0;
  transform: translateY(-10px);
  transition: all var(--duration-normal) var(--ease-standard);
  pointer-events: none;
}

.autosave-indicator.active {
  opacity: 1;
  transform: translateY(0);
}

.autosave-icon {
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}

/* ============================================
   HEADER PROFESIONAL - MEJORADO
   ============================================ */

.header-pro {
    background: linear-gradient(135deg, #21808d 0%, #13343b 100%);
    padding: 0;
    margin-bottom: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    border-radius: 12px;
    overflow: hidden;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    gap: 2rem;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex: 1;
}

.header-logo-container {
    position: relative;
    width: 70px;
    height: 70px;
    background: white;
    border-radius: 12px;
    padding: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.header-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.header-logo-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #21808d 0%, #2a9ba8 100%);
    border-radius: 8px;
}

.header-logo-text {
    font-size: 24px;
    font-weight: 800;
    color: white;
    letter-spacing: 1px;
}

.header-company-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.header-company-name {
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    line-height: 1;
}

.header-company-tagline {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.95);
    margin: 0;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.header-company-location {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.85);
    margin: 0.25rem 0 0 0;
    font-weight: 400;
}

.header-actions-group {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.btn-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.btn-header .btn-icon {
    font-size: 1.1rem;
}

.btn-header-primary {
    background: white;
    color: #21808d;
}

.btn-header-primary:hover {
    background: #f0f9fa;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-header-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    backdrop-filter: blur(10px);
}

.btn-header-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.btn-header-outline {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-header-outline:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: white;
    transform: translateY(-2px);
}

.header-bottom {
    background: rgba(0, 0, 0, 0.2);
    padding: 0.75rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(10px);
}

.header-status {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.autosave-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: rgba(76, 175, 80, 0.2);
    border: 1px solid rgba(76, 175, 80, 0.5);
    border-radius: 6px;
    font-size: 0.85rem;
    color: #a7f3a9;
    font-weight: 500;
}

.autosave-icon {
    font-size: 1rem;
}

.header-tagline {
    flex: 1;
    text-align: right;
}

.header-tagline p {
    margin: 0;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.3px;
}

/* ============================================
   SELECTOR DE TIPO DE DOCUMENTO - DESTACADO
   ============================================ */

.form-control-highlight {
    border: 2px solid #21808d !important;
    font-weight: 600 !important;
    font-size: 1rem !important;
    box-shadow: 0 2px 8px rgba(33, 128, 141, 0.15) !important;
    transition: all 0.3s ease !important;
}

.form-control-highlight:hover {
    border-color: #2a9ba8 !important;
    box-shadow: 0 4px 12px rgba(33, 128, 141, 0.25) !important;
    transform: translateY(-1px);
}

.form-control-highlight:focus {
    outline: none !important;
    border-color: #2a9ba8 !important;
    box-shadow: 0 0 0 4px rgba(33, 128, 141, 0.1), 0 4px 12px rgba(33, 128, 141, 0.25) !important;
}

/* ============================================
   FORM ENHANCEMENTS
   ============================================ */

.form-help-icon {
  cursor: help;
  font-size: var(--font-size-sm);
  opacity: 0.7;
  margin-left: var(--space-4);
}

.form-help-icon:hover {
  opacity: 1;
}

.auto-calc-badge {
  display: inline-block;
  padding: var(--space-2) var(--space-6);
  background-color: var(--color-success);
  color: white;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-sm);
  margin-left: var(--space-6);
}

.slider-display {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-4);
}

.slider-amount {
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.quick-calculations {
  margin-top: var(--space-8);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* ============================================
   QUICK STATS
   ============================================ */

.quick-stats {
  margin-top: var(--space-20);
  padding-top: var(--space-16);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.stat-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-sm);
}

.stat-label {
  color: var(--color-text-secondary);
}

.stat-value {
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

/* ============================================
   BUTTON VARIANTS
   ============================================ */

.btn--xs {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-xs);
}

.btn--success {
  background-color: var(--color-success);
  color: white;
  border: 1px solid var(--color-success);
}

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

.btn--danger {
  background-color: var(--color-error);
  color: white;
  border: 1px solid var(--color-error);
}

.btn--danger:hover {
  opacity: 0.9;
}

/* ============================================
   MODALS
   ============================================ */

.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  justify-content: center;
  align-items: center;
  padding: var(--space-20);
}

.modal-content {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  max-width: 700px;
  width: 100%;
  max-height: 80vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-20);
  border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
  margin: 0;
  font-size: var(--font-size-2xl);
  color: var(--color-text);
}

.modal-close {
  background: none;
  border: none;
  font-size: var(--font-size-4xl);
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-base);
  transition: all var(--duration-fast);
}

.modal-close:hover {
  background-color: var(--color-secondary);
  color: var(--color-text);
}

.modal-body {
  padding: var(--space-20);
  overflow-y: auto;
  flex: 1;
}

/* ============================================
   TEMPLATE LIST
   ============================================ */

.template-list,
.history-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.template-item,
.history-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-16);
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  transition: all var(--duration-fast);
}

.template-item:hover,
.history-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.template-info,
.history-info {
  flex: 1;
}

.template-info h4,
.history-info h4 {
  margin: 0 0 var(--space-4) 0;
  color: var(--color-text);
  font-size: var(--font-size-lg);
}

.template-info p,
.history-info p {
  margin: 0 0 var(--space-4) 0;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.history-info small {
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
}

.history-actions {
  display: flex;
  gap: var(--space-8);
}

.empty-message {
  text-align: center;
  padding: var(--space-32);
  color: var(--color-text-secondary);
  font-style: italic;
}

/* ============================================
   NOTIFICATIONS
   ============================================ */

.notification {
  position: fixed;
  top: var(--space-20);
  right: var(--space-20);
  padding: var(--space-12) var(--space-20);
  border-radius: var(--radius-base);
  box-shadow: var(--shadow-lg);
  z-index: 2000;
  font-weight: var(--font-weight-medium);
  opacity: 0;
  transform: translateX(400px);
  transition: all var(--duration-normal) var(--ease-standard);
  max-width: 400px;
}

.notification.show {
  opacity: 1;
  transform: translateX(0);
}

.notification--success {
  background-color: var(--color-success);
  color: white;
}

.notification--error {
  background-color: var(--color-error);
  color: white;
}

.notification--info {
  background-color: var(--color-info);
  color: white;
}

.notification--warning {
  background-color: var(--color-warning);
  color: white;
}

/* ============================================
   RESPONSIVE ENHANCEMENTS
   ============================================ */

@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .header-actions {
    width: 100%;
  }
  
  .header-actions .btn {
    flex: 1;
  }
  
  .autosave-indicator {
    position: static;
    margin-top: var(--space-8);
  }
  
  .modal {
    padding: var(--space-8);
  }
  
  .modal-content {
    max-height: 90vh;
  }
  
  .template-item,
  .history-item {
    flex-direction: column;
    gap: var(--space-12);
  }
  
  .history-actions {
    width: 100%;
  }
  
  .history-actions .btn {
    flex: 1;
  }
  
  .notification {
    right: var(--space-8);
    left: var(--space-8);
    max-width: none;
  }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
  .header-actions,
  .section-actions,
  .actions,
  .btn,
  .autosave-indicator,
  .modal {
    display: none !important;
  }
  
  .section {
    break-inside: avoid;
  }
  
  .summary-column {
    page-break-before: always;
  }
}

/* ============================================
   ACCESSIBILITY IMPROVEMENTS
   ============================================ */

.btn:focus-visible,
.form-control:focus-visible,
.form-label:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

button[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .btn {
    border-width: 2px;
  }
  
  .section {
    border-width: 2px;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .autosave-icon {
    animation: none;
  }
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
  }
  to {
    transform: translateX(0);
  }
}

.section {
  animation: fadeIn var(--duration-normal) var(--ease-standard);
}

/* ============================================
   FOOTER
   ============================================ */

.app-footer {
  margin-top: 40px;
  padding: 30px 0;
  border-top: 2px solid var(--color-border);
  background: linear-gradient(to bottom, transparent, var(--color-bg-1));
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
  text-align: center;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: var(--font-size-xl);
}

.footer-logo-img {
  height: 45px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
  transition: transform 0.3s ease;
}

.footer-logo-img:hover {
  transform: scale(1.05);
}

.footer-brand {
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  font-size: var(--font-size-2xl);
  letter-spacing: -0.02em;
}

.footer-text {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.footer-copyright {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
  margin: 0;
}

.footer-tagline {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  font-style: italic;
  opacity: 0.8;
  margin: 0;
}

/* Dark mode adjustments */
[data-color-scheme="dark"] .app-footer {
  border-top-color: rgba(255, 255, 255, 0.1);
  background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 0.02));
}

[data-color-scheme="dark"] .footer-brand {
  color: var(--color-teal-400);
}

/* Si tu logo tiene fondo blanco, puedes añadir un border radius o invertir colores
[data-color-scheme="dark"] .footer-logo-img {
  filter: brightness(0.9) drop-shadow(0 2px 4px rgba(255, 255, 255, 0.1));
} */

/* Responsive */
@media (max-width: 768px) {
  .app-footer {
    margin-top: 30px;
    padding: 20px 0;
  }
  
  .footer-brand {
    font-size: var(--font-size-lg);
  }
  
  .footer-logo-img {
    height: 35px;
  }
  
  .footer-logo {
    gap: 10px;
  }
}

/* Para pantallas muy pequeñas, el logo y texto se apilan verticalmente */
@media (max-width: 480px) {
  .footer-logo {
    flex-direction: column;
    gap: 8px;
  }
  
  .footer-logo-img {
    height: 40px;
  }
}