: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 */
/* Importar fuente Inter */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* Variables CSS para temas */
:root {
    /* Light Mode */
    --bg-color: #f5f5f7;
    --card-bg: rgba(255, 255, 255, 0.65);
    --primary: #007aff;
    --primary-hover: #0063d1;
    --primary-press: #0051b3;
    --text: #1c1c1e;
    --text-muted: #7c7c80;
    --bot-bubble: #e9e9eb;
    --user-bubble: #007aff;
    --border: rgba(0, 0, 0, 0.08);
    --shadow: rgba(0, 0, 0, 0.12);
    --shadow-strong: rgba(0, 0, 0, 0.2);
    --overlay: rgba(0, 0, 0, 0.3);
    --success: #34c759;
    --error: #ff3b30;
    --warning: #ff9500;
    --info: #5856d6;

    /* Personalización */
    --base-font-size: 15px;
    --message-gap: 16px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #0f0f10;
        --card-bg: rgba(28, 28, 30, 0.7);
        --primary: #0a84ff;
        --primary-hover: #0067da;
        --primary-press: #0051b3;
        --text: #f2f2f7;
        --text-muted: #a1a1a6;
        --bot-bubble: #2c2c2e;
        --user-bubble: #0a84ff;
        --border: rgba(255, 255, 255, 0.12);
        --shadow: rgba(0, 0, 0, 0.6);
        --shadow-strong: rgba(0, 0, 0, 0.7);
        --overlay: rgba(0, 0, 0, 0.6);
    }
}

/* Temas forzados */
html[data-theme="light"] {
    --bg-color: #f5f5f7;
    --card-bg: rgba(255, 255, 255, 0.65);
    --primary: #007aff;
    --primary-hover: #0063d1;
    --primary-press: #0051b3;
    --text: #1c1c1e;
    --text-muted: #7c7c80;
    --bot-bubble: #e9e9eb;
    --user-bubble: #007aff;
    --border: rgba(0, 0, 0, 0.08);
    --shadow: rgba(0, 0, 0, 0.12);
    --shadow-strong: rgba(0, 0, 0, 0.2);
}

html[data-theme="dark"] {
    --bg-color: #0f0f10;
    --card-bg: rgba(28, 28, 30, 0.7);
    --primary: #0a84ff;
    --primary-hover: #0067da;
    --primary-press: #0051b3;
    --text: #f2f2f7;
    --text-muted: #a1a1a6;
    --bot-bubble: #2c2c2e;
    --user-bubble: #0a84ff;
    --border: rgba(255, 255, 255, 0.12);
    --shadow: rgba(0, 0, 0, 0.6);
    --shadow-strong: rgba(0, 0, 0, 0.7);
}

/* Reset y estilos base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 15px;
    line-height: 1.5;
    color: var(--text);
    background-color: var(--bg-color);
    overflow-x: hidden;
}

/* Tamaños de fuente dinámicos */
body.font-small { font-size: 13px; }
body.font-medium { font-size: 15px; }
body.font-large { font-size: 17px; }

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 70px;
    background: var(--card-bg);
    backdrop-filter: blur(22px);
    -webkit-backdrop-filter: blur(22px);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px 12px 24px;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    font-size: 28px;
}

.header-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--text);
    flex: 1;
    text-align: center;
    margin-left: 50px;
    z-index: 5;
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
    z-index: 10;
    position: relative;
}

.header-mobile {
    display: none;
}

/* Botones */
.icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: none;
    background: transparent;
    color: var(--text);
    font-size: 18px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover {
    background: var(--border);
}

@media (prefers-color-scheme: dark) {
    .icon-btn {
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
}

.icon-btn:active {
    transform: scale(0.95);
}

.btn-primary {
    padding: 10px 16px;
    border-radius: 10px;
    border: none;
    background: var(--primary);
    color: white;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 4px;
}

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

.btn-primary:active {
    transform: scale(0.98);
}

.btn-secondary {
    padding: 10px 16px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

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

/* Sidebar - Mejorado */
.sidebar {
    position: fixed;
    top: 70px;
    left: -320px;
    width: 280px;
    height: calc(100vh - 70px);
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid var(--border);
    transition: left 0.3s ease;
    z-index: 99;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.sidebar.active {
    left: 0;
}

.sidebar-header {
    padding: 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sidebar-header h3 {
    font-size: 16px;
    font-weight: 600;
    margin: 0;
}

.close-sidebar-btn {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    font-size: 16px;
}

.close-sidebar-btn:hover {
    background: rgba(0, 0, 0, 0.05);
    color: var(--text);
}

/* Search Box en Sidebar */
.search-box {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    position: relative;
}

.search-box::before {
    content: '🔍';
    position: absolute;
    left: 28px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 14px;
    pointer-events: none;
    z-index: 1;
}

#historySearch {
    width: 100%;
    padding: 10px 12px 10px 36px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg-color);
    color: var(--text);
    font-size: 14px;
    font-family: inherit;
    transition: all 0.2s;
    outline: none;
}

#historySearch:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

#historySearch::placeholder {
    color: var(--text-muted);
}

.no-results {
    padding: 40px 20px;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
}

.no-results-icon {
    font-size: 40px;
    margin-bottom: 12px;
    opacity: 0.3;
}

/* Highlight de búsqueda */
mark {
    background: rgba(255, 204, 0, 0.3);
    color: var(--text);
    padding: 0 2px;
    border-radius: 2px;
    font-weight: 500;
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 0;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border);
}

.history-item {
    padding: 12px 16px;
    margin-bottom: 0;
    border-radius: 0;
    background: transparent;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.history-item:hover {
    background: rgba(0, 122, 255, 0.05);
    padding-left: 20px;
}

.history-item.active {
    background: rgba(0, 122, 255, 0.1);
    border-left: 3px solid var(--primary);
}

.history-item-content {
    flex: 1;
    min-width: 0;
    cursor: pointer;
}

.history-item-date {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
}

.history-item-preview {
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 4px;
}

.history-item-delete {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    border: none;
    background: transparent;
    color: var(--error);
    font-size: 16px;
    cursor: pointer;
    flex-shrink: 0;
    transition: background 0.2s ease;
}

.history-item-delete:hover {
    background: rgba(255, 59, 48, 0.1);
}

.empty-history {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
}

.empty-history-icon {
    font-size: 48px;
    margin-bottom: 12px;
    opacity: 0.5;
}

/* Overlay */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--overlay);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 98;
}

.overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Main Container */
.main-container {
    margin-top: 70px;
    height: calc(100vh - 70px);
    display: flex;
    flex-direction: column;
}

/* Chat Container */
.chat-container {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    scroll-behavior: smooth;
}

.messages {
    max-width: 900px;
    margin: 0 auto;
}

/* Mensajes */
.message {
    margin-bottom: var(--message-gap);
    animation: fadeIn 0.3s ease;
}

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

.message-user {
    display: flex;
    justify-content: flex-end;
}

.message-bot {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.message-bubble {
    padding: 12px 16px;
    border-radius: 16px;
    max-width: 80%;
    word-wrap: break-word;
}

.message-user .message-bubble {
    background: var(--user-bubble);
    color: white;
    border-bottom-right-radius: 4px;
}

.message-bot .message-bubble {
    background: var(--bot-bubble);
    color: var(--text);
    border-bottom-left-radius: 4px;
    font-size: var(--base-font-size);
}

.message-user .message-bubble {
    font-size: var(--base-font-size);
}

/* Markdown en mensajes del bot - Mejorado */
.message-bot .message-bubble {
    line-height: 1.6;
}

.message-bot .message-bubble h1,
.message-bot .message-bubble h2,
.message-bot .message-bubble h3,
.message-bot .message-bubble h4 {
    margin-top: 16px;
    margin-bottom: 8px;
    font-weight: 600;
}

.message-bot .message-bubble h1:first-child,
.message-bot .message-bubble h2:first-child,
.message-bot .message-bubble h3:first-child,
.message-bot .message-bubble h4:first-child {
    margin-top: 0;
}

.message-bot .message-bubble h1 { font-size: 20px; }
.message-bot .message-bubble h2 { font-size: 18px; }
.message-bot .message-bubble h3 { font-size: 16px; }
.message-bot .message-bubble h4 { font-size: 15px; }

.message-bot .message-bubble p {
    margin-bottom: 12px;
}

.message-bot .message-bubble ul,
.message-bot .message-bubble ol {
    margin: 12px 0;
    padding-left: 24px;
}

.message-bot .message-bubble li {
    margin-bottom: 6px;
}

.message-bot .message-bubble code {
    background: rgba(0, 122, 255, 0.1);
    color: var(--primary);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 14px;
    font-family: 'SF Mono', 'Monaco', 'Cascadia Code', monospace;
}

.message-bot .message-bubble pre {
    background: rgba(0, 0, 0, 0.05);
    padding: 12px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 12px 0;
    border: 1px solid var(--border);
}

@media (prefers-color-scheme: dark) {
    .message-bot .message-bubble code {
        background: rgba(10, 132, 255, 0.15);
        color: var(--primary);
    }

    .message-bot .message-bubble pre {
        background: rgba(0, 0, 0, 0.3);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
}

.message-bot .message-bubble pre code {
    background: none;
    padding: 0;
    color: var(--text);
}

.message-bot .message-bubble blockquote {
    border-left: 3px solid var(--primary);
    padding-left: 12px;
    margin: 12px 0;
    color: var(--text-muted);
    font-style: italic;
}

.message-bot .message-bubble a {
    color: var(--primary);
    text-decoration: none;
}

.message-bot .message-bubble a:hover {
    text-decoration: underline;
}

.message-bot .message-bubble hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 12px 0;
}

.message-bot .message-bubble table {
    width: 100%;
    border-collapse: collapse;
    margin: 12px 0;
}

.message-bot .message-bubble table th,
.message-bot .message-bubble table td {
    border: 1px solid var(--border);
    padding: 8px;
    text-align: left;
}

.message-bot .message-bubble table th {
    background: rgba(0, 122, 255, 0.05);
    font-weight: 600;
}

.message-actions {
    display: flex;
    gap: 4px;
    margin-top: 8px;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.message:hover .message-actions {
    opacity: 1;
}

.message-action-btn {
    padding: 4px 10px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--text-muted);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 4px;
}

.message-action-btn:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-1px);
}

.message-action-btn.active {
    background: rgba(0, 122, 255, 0.1);
    color: var(--primary);
    border-color: var(--primary);
}

.message-action-btn.feedback-positive.active {
    background: rgba(52, 199, 89, 0.1);
    color: var(--success);
    border-color: var(--success);
}

.message-action-btn.feedback-negative.active {
    background: rgba(255, 59, 48, 0.1);
    color: var(--error);
    border-color: var(--error);
}

.message-timestamp {
    font-size: 11px;
    color: var(--text-muted);
    margin-left: auto;
}

/* Indicador de escritura - Más Suave */
.typing-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    margin-bottom: 16px;
}

.typing-dots {
    display: flex;
    gap: 4px;
}

.typing-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    animation: typingBounce 1.4s infinite;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.7;
    }
    30% {
        transform: translateY(-10px);
        opacity: 1;
    }
}

.typing-text {
    font-size: 13px;
    color: var(--text-muted);
}

/* Mensaje de bienvenida */
.welcome-message {
    max-width: 700px;
    margin: 0 auto 24px;
    padding: 24px;
    background: var(--card-bg);
    backdrop-filter: blur(22px);
    -webkit-backdrop-filter: blur(22px);
    border-radius: 16px;
    border: 1px solid var(--border);
    box-shadow: 0 2px 12px var(--shadow);
}

/* Compositor Rediseñado (Input Area) */
.composer {
    position: relative;
    padding: 16px;
    margin: 16px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: 0 -2px 20px var(--shadow);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Composer expandido con efecto visual mejorado - MÁS GRANDE */
.composer.expanded {
    padding: 20px 16px;
    box-shadow: 0 -6px 40px rgba(0, 0, 0, 0.15), 0 0 0 1px var(--border);
}

.composer:focus-within {
    border-color: var(--primary);
    box-shadow: 0 -2px 20px var(--shadow), 0 0 0 3px rgba(0, 122, 255, 0.1);
}

.composer-main {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 12px;
}

.attach-btn {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    margin-top: 2px;
}

.attach-btn:hover {
    background: rgba(0, 122, 255, 0.1);
    color: var(--primary);
    transform: scale(1.05);
}

.attach-btn:active {
    transform: scale(0.95);
}

.input-wrapper {
    flex: 1;
    position: relative;
}

.message-input {
    width: 100%;
    min-height: 40px;
    max-height: 400px;
    padding: 10px 14px;
    border: none;
    background: transparent;
    color: var(--text);
    font-size: 15px;
    font-family: inherit;
    resize: none;
    outline: none;
    line-height: 1.6;
    transition: min-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Clase para expandir el textarea - MUCHO MÁS GRANDE (180px = 8-9 líneas) */
.message-input.expanded {
    min-height: 180px;
}

.message-input::placeholder {
    color: var(--text-muted);
    opacity: 0.6;
}

.send-btn {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: none;
    background: var(--primary);
    color: white;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    opacity: 0.5;
    pointer-events: none;
    margin-top: 2px;
}

.send-btn.active {
    opacity: 1;
    pointer-events: all;
    transform: scale(1);
}

.send-btn.active:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 122, 255, 0.3);
}

.send-btn.active:active {
    transform: scale(0.95);
}

.composer-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-muted);
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.composer-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.composer-link {
    color: var(--primary);
    text-decoration: none;
    cursor: pointer;
    transition: opacity 0.2s ease;
    font-weight: 500;
}

.composer-link:hover {
    opacity: 0.7;
}

.char-counter {
    font-variant-numeric: tabular-nums;
    font-size: 12px;
}

.char-counter.warning {
    color: #ff9f0a;
}

.char-counter.error {
    color: #ff3b30;
}

.image-preview-composer {
    margin-bottom: 12px;
    position: relative;
    animation: slideDown 0.2s ease;
}

.image-preview-composer img {
    max-height: 80px;
    border-radius: 12px;
    object-fit: cover;
}

.image-preview-composer .remove-btn {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: all 0.2s ease;
}

.image-preview-composer .remove-btn:hover {
    background: #ff3b30;
    transform: scale(1.1);
}

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

/* Modales - Diseño Moderno */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: 1000;
    padding: 20px;
    animation: fadeIn 0.2s ease;
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid var(--border);
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    transform: scale(0.9);
    transition: transform 0.3s ease;
    animation: scaleIn 0.3s ease;
}

.modal-content.modal-settings {
    max-width: 700px;
}

.modal.active .modal-content {
    transform: scale(1);
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 18px;
    font-weight: 600;
}

.modal .icon-btn {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.modal .icon-btn:hover {
    background: rgba(0, 0, 0, 0.05);
    color: var(--text);
}

.modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    max-height: calc(80vh - 140px);
}

/* Templates Modal */
.templates-list {
    margin-bottom: 24px;
}

.template-item {
    padding: 16px;
    margin-bottom: 12px;
    background: var(--bg-color);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: all 0.2s ease;
    cursor: pointer;
}

.template-item:hover {
    border-color: var(--primary);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px var(--shadow);
}

.template-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.template-name {
    font-weight: 600;
    font-size: 15px;
}

.template-preview {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.template-actions {
    display: flex;
    gap: 8px;
}

.template-form {
    margin-top: 16px;
    padding: 16px;
    background: var(--bg-color);
    border-radius: 12px;
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--text);
    font-size: 14px;
    font-family: inherit;
    margin-bottom: 12px;
    transition: all 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
}

.template-form-actions {
    display: flex;
    gap: 8px;
    margin-top: 12px;
}

/* Settings Modal */
.settings-body {
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* Modal Tabs */
.modal-tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    gap: 4px;
    background: var(--card-bg);
}

.tab-btn {
    padding: 12px 16px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

.tab-btn:hover {
    color: var(--text);
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
    padding: 24px;
}

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

/* Setting Section para personalización */
.setting-section {
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
}

.setting-section:last-child {
    border-bottom: none;
}

.setting-section h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 6px;
}

.setting-description {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

/* Theme Picker */
.theme-picker {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.theme-option {
    cursor: pointer;
}

.theme-option input[type="radio"] {
    display: none;
}

.theme-card {
    padding: 12px;
    border: 2px solid var(--border);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.theme-option input:checked + .theme-card {
    border-color: var(--primary);
    background: rgba(0, 122, 255, 0.05);
}

.theme-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.theme-preview {
    width: 100%;
    height: 60px;
    border-radius: 8px;
    margin-bottom: 8px;
    overflow: hidden;
    display: flex;
}

.auto-preview .preview-half {
    flex: 1;
}

.auto-preview .light {
    background: #f5f5f7;
}

.auto-preview .dark {
    background: #1c1c1e;
}

.light-preview {
    background: #f5f5f7;
}

.dark-preview {
    background: #1c1c1e;
}

.theme-card span {
    font-size: 13px;
    font-weight: 500;
}

/* Accent Picker */
.accent-picker {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.accent-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.accent-option input[type="radio"] {
    display: none;
}

.accent-swatch {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    border: 3px solid transparent;
    transition: all 0.2s;
}

.accent-option input:checked ~ .accent-swatch {
    border-color: var(--text);
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.accent-option:hover .accent-swatch {
    transform: scale(1.05);
}

.accent-option span {
    font-size: 12px;
    color: var(--text-muted);
}

/* Font Size Picker */
.font-size-picker {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.size-option {
    cursor: pointer;
}

.size-option input[type="radio"] {
    display: none;
}

.size-card {
    padding: 16px;
    border: 2px solid var(--border);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.size-option input:checked + .size-card {
    border-color: var(--primary);
    background: rgba(0, 122, 255, 0.05);
}

.size-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.size-preview {
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
}

.small-preview {
    font-size: 20px;
}

.medium-preview {
    font-size: 28px;
}

.large-preview {
    font-size: 36px;
}

.size-card span {
    font-size: 13px;
    font-weight: 500;
}

/* Density Picker */
.density-picker {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.density-option {
    cursor: pointer;
}

.density-option input[type="radio"] {
    display: none;
}

.density-card {
    padding: 16px 12px;
    border: 2px solid var(--border);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.density-option input:checked + .density-card {
    border-color: var(--primary);
    background: rgba(0, 122, 255, 0.05);
}

.density-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.density-preview {
    height: 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    margin-bottom: 8px;
}

.preview-msg {
    background: var(--bot-bubble);
    border-radius: 6px;
}

.preview-msg.compact {
    height: 12px;
    margin: 2px 0;
}

.preview-msg.comfortable {
    height: 16px;
    margin: 4px 0;
}

.preview-msg.spacious {
    height: 20px;
    margin: 8px 0;
}

.density-card span {
    font-size: 13px;
    font-weight: 500;
}

.settings-section {
    margin-bottom: 24px;
}

.settings-section h3 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 12px;
}

.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
}

.setting-item label {
    font-size: 14px;
}

.session-id-display {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
}

.session-id-display code {
    flex: 1;
    padding: 8px 12px;
    background: var(--bg-color);
    border-radius: 6px;
    font-size: 12px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.export-buttons {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Toggle Switch */
.toggle {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 28px;
}

.toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border);
    transition: 0.3s;
    border-radius: 28px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
}

.toggle input:checked + .toggle-slider {
    background-color: var(--primary);
}

.toggle input:checked + .toggle-slider:before {
    transform: translateX(20px);
}

/* Shortcuts Modal */
.shortcuts-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.shortcut-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--bg-color);
    border-radius: 8px;
}

.shortcut-item kbd {
    padding: 4px 8px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 12px;
    font-family: inherit;
    font-weight: 600;
}

.shortcut-item span {
    margin-left: auto;
    color: var(--text-muted);
    font-size: 14px;
}

.shortcuts-note {
    margin-top: 16px;
    padding: 12px;
    background: rgba(0, 122, 255, 0.1);
    border-radius: 8px;
    font-size: 13px;
    color: var(--primary);
}

/* Toast Notifications - Mejoradas */
#toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toast {
    min-width: 280px;
    padding: 14px 18px;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 12px;
    border: 1px solid var(--border);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 12px;
    animation: slideInRight 0.3s ease;
}

@keyframes slideInRight {
    from {
        transform: translateX(100px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast.removing {
    animation: slideOutRight 0.3s ease;
}

@keyframes slideOutRight {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100px);
        opacity: 0;
    }
}

.toast-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.toast-message {
    flex: 1;
    font-size: 14px;
}

.toast.success { border-left: 3px solid #34c759; }
.toast.error { border-left: 3px solid #ff3b30; }
.toast.warning { border-left: 3px solid #ff9f0a; }
.toast.info { border-left: 3px solid var(--primary); }

/* Responsive Optimizado */
@media (max-width: 768px) {
    .message-input.expanded {
        min-height: 160px;
    }

    .composer.expanded {
        padding: 18px 16px;
    }

    .header {
        display: none;
    }

    .header-mobile {
        display: flex;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: 60px;
        background: var(--card-bg);
        backdrop-filter: blur(22px);
        -webkit-backdrop-filter: blur(22px);
        border-bottom: 1px solid var(--border);
        align-items: center;
        justify-content: space-between;
        padding: 0 16px;
        z-index: 100;
    }

    .main-container {
        margin-top: 60px;
        height: calc(100vh - 60px);
    }

    .sidebar {
        top: 60px;
        height: calc(100vh - 60px);
        width: 100%;
        left: -100%;
    }

    .sidebar.active {
        left: 0;
    }

    .chat-container {
        padding: 16px;
    }

    .composer {
        margin: 12px;
        border-radius: 12px;
    }

    .composer-main {
        gap: 8px;
    }

    .attach-btn,
    .send-btn {
        width: 40px;
        height: 40px;
    }

    .message-input {
        font-size: 16px; /* Previene zoom en iOS */
    }

    .composer-toolbar {
        font-size: 11px;
    }

    .message-bubble {
        max-width: 90%;
    }

    #toast-container {
        top: 70px;
        right: 16px;
        left: 16px;
    }

    .toast {
        min-width: auto;
    }

    .modal-content {
        max-width: 100%;
        max-height: 90vh;
        margin: 0 16px;
        border-radius: 16px;
    }
}

/* Drag & Drop styles */
#messages {
    position: relative;
    transition: all 0.2s ease;
}

#messages.drag-over {
    background: rgba(0, 122, 255, 0.05);
    border: 2px dashed var(--primary);
    border-radius: 12px;
}

#messages.drag-over::after {
    content: '📎 Suelta la imagen aquí';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 18px;
    color: var(--primary);
    font-weight: 600;
    z-index: 1000;
    pointer-events: none;
    background: var(--card-bg);
    padding: 20px 40px;
    border-radius: 12px;
    backdrop-filter: blur(22px);
}

.message-image {
    max-width: 200px;
    border-radius: 8px;
    margin-bottom: 8px;
    display: block;
}

.retry-btn {
    margin-left: 8px;
    padding: 4px 12px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
}

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

.message.system {
    display: flex;
    justify-content: center;
    margin: 16px 0;
}

.message.system .message-bubble {
    background: rgba(255, 59, 48, 0.1);
    border: 1px solid var(--error);
    color: var(--text);
    max-width: 90%;
}

/* Scroll Suave y Personalizado */
#chat-container {
    scroll-behavior: smooth;
}

#chat-container::-webkit-scrollbar,
.sidebar-content::-webkit-scrollbar,
.modal-body::-webkit-scrollbar {
    width: 8px;
}

#chat-container::-webkit-scrollbar-track,
.sidebar-content::-webkit-scrollbar-track,
.modal-body::-webkit-scrollbar-track {
    background: transparent;
}

#chat-container::-webkit-scrollbar-thumb,
.sidebar-content::-webkit-scrollbar-thumb,
.modal-body::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 4px;
    opacity: 0.5;
}

#chat-container::-webkit-scrollbar-thumb:hover,
.sidebar-content::-webkit-scrollbar-thumb:hover,
.modal-body::-webkit-scrollbar-thumb:hover {
    background: var(--text);
    opacity: 0.7;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Selección de texto */
::selection {
    background: rgba(0, 122, 255, 0.2);
}

/* Focus visible para accesibilidad */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* ============================================
   SELECTOR DE CLIENTES
   ============================================ */

.client-selector {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
}

.client-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
    width: 100%;
}

.client-card:hover {
    border-color: var(--color-primary);
    background: rgba(var(--color-teal-500-rgb), 0.05);
    transform: translateX(4px);
}

.client-card.selected {
    border-color: var(--color-primary);
    background: rgba(var(--color-teal-500-rgb), 0.1);
    box-shadow: 0 0 0 3px rgba(var(--color-teal-500-rgb), 0.15);
}

.client-card.selected .client-name {
    color: var(--color-primary);
}

.client-emoji {
    font-size: 28px;
    line-height: 1;
    flex-shrink: 0;
}

.client-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.client-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--color-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.client-desc {
    font-size: 12px;
    color: var(--color-text-secondary);
}

.client-hint {
    margin-top: 8px;
    font-size: 12px;
    color: var(--color-text-secondary);
    text-align: center;
}

/* Indicador de cliente activo en header */
.active-client-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: rgba(var(--color-teal-500-rgb), 0.1);
    border: 1px solid rgba(var(--color-teal-500-rgb), 0.3);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    color: var(--color-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    margin-left: 12px;
}

.active-client-indicator:hover {
    background: rgba(var(--color-teal-500-rgb), 0.15);
}

.indicator-dot {
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Responsive para móvil */
@media (max-width: 768px) {
    .client-card {
        padding: 12px 14px;
    }

    .client-emoji {
        font-size: 24px;
    }

    .client-name {
        font-size: 13px;
    }

    .active-client-indicator {
        display: none;
    }
}

/* Dark mode ajustes */
[data-theme="dark"] .client-card {
    background: var(--color-charcoal-800);
}

[data-theme="dark"] .client-card:hover {
    background: rgba(var(--color-teal-500-rgb), 0.15);
}

[data-theme="dark"] .client-card.selected {
    background: rgba(var(--color-teal-500-rgb), 0.2);
}