: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 */
/* Additional custom styles for Gamified Smart Study Planner */

.app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: 'Inter', var(--font-family-base);
    background: var(--color-background);
    overflow-x: hidden;
}

/* Header Styling */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: var(--space-20) 0;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateX(0) translateY(0); }
    25% { transform: translateX(2px) translateY(-2px); }
    50% { transform: translateX(-2px) translateY(2px); }
    75% { transform: translateX(2px) translateY(2px); }
}

.header-content {
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--space-16);
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: var(--space-24);
    align-items: center;
    position: relative;
    z-index: 1;
}

.logo-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.logo {
    font-family: 'Poppins', var(--font-family-base);
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    margin: 0;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.tagline {
    font-size: var(--font-size-sm);
    opacity: 0.9;
    margin: 0;
    font-style: italic;
}

.user-stats {
    display: flex;
    gap: var(--space-24);
    align-items: center;
    justify-self: center;
}

.level-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-8);
}

.level-info {
    display: flex;
    align-items: baseline;
    gap: var(--space-4);
}

.level-label {
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

.level-number {
    font-family: 'Poppins', var(--font-family-base);
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.rank-badge {
    background: rgba(255, 255, 255, 0.2);
    padding: var(--space-4) var(--space-12);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.xp-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
    min-width: 200px;
}

.xp-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    font-family: 'Poppins', var(--font-family-base);
}

.xp-current, .xp-needed {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-lg);
}

.xp-divider {
    opacity: 0.7;
}

.xp-label {
    font-size: var(--font-size-sm);
    opacity: 0.8;
    margin-left: var(--space-4);
}

.xp-bar {
    position: relative;
    width: 100%;
    height: 12px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.xp-fill {
    height: 100%;
    background: linear-gradient(90deg, #ffeaa7, #fdcb6e, #e17055);
    border-radius: var(--radius-full);
    transition: width 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
}

.xp-fill::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

.xp-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.streak-display {
    display: flex;
    align-items: center;
    gap: var(--space-12);
    background: rgba(255, 255, 255, 0.1);
    padding: var(--space-12) var(--space-16);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.streak-flame {
    font-size: var(--font-size-3xl);
    animation: flicker 1.5s ease-in-out infinite alternate;
}

@keyframes flicker {
    0% { transform: scale(1) rotate(-2deg); }
    100% { transform: scale(1.1) rotate(2deg); }
}

.streak-info {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.streak-number {
    font-family: 'Poppins', var(--font-family-base);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    line-height: 1;
}

.streak-label {
    font-size: var(--font-size-xs);
    opacity: 0.8;
    white-space: nowrap;
}

.header-controls {
    display: flex;
    gap: var(--space-12);
}

.theme-toggle {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: var(--space-12);
    border-radius: var(--radius-full);
    transition: all var(--duration-normal) var(--ease-standard);
    backdrop-filter: blur(10px);
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

/* Navigation Tabs */
.nav-tabs {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 0 var(--space-16);
    display: flex;
    gap: var(--space-4);
    overflow-x: auto;
    box-shadow: var(--shadow-sm);
}

.nav-tab {
    background: none;
    border: none;
    padding: var(--space-16) var(--space-20);
    color: var(--color-text-secondary);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all var(--duration-fast) var(--ease-standard);
    display: flex;
    align-items: center;
    gap: var(--space-8);
    border-radius: var(--radius-base) var(--radius-base) 0 0;
    position: relative;
}

.nav-tab:hover {
    color: var(--color-text);
    background: var(--color-bg-1);
    transform: translateY(-2px);
}

.nav-tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
    background: var(--color-bg-1);
}

.nav-tab.active::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background: var(--color-primary);
    border-radius: 50%;
}

.nav-icon {
    font-size: var(--font-size-lg);
}

.nav-text {
    font-weight: var(--font-weight-medium);
}

/* Main Content */
.main-content {
    flex: 1;
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: var(--space-32) var(--space-16);
    width: 100%;
}

/* Views */
.view {
    display: none;
    animation: fadeInUp 0.4s ease-out;
}

.view.active {
    display: block;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Dashboard */
.motivational-section {
    margin-bottom: var(--space-32);
}

.quote-card {
    background: linear-gradient(135deg, var(--color-bg-3), var(--color-bg-5));
    padding: var(--space-24);
    border-radius: var(--radius-lg);
    text-align: center;
    position: relative;
    border: 1px solid var(--color-card-border);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-16);
}

.quote-text {
    font-family: 'Poppins', var(--font-family-base);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    font-style: italic;
    flex: 1;
}

.refresh-quote {
    background: var(--color-secondary);
    border: none;
    padding: var(--space-8);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-standard);
    font-size: var(--font-size-lg);
}

.refresh-quote:hover {
    transform: rotate(180deg);
    background: var(--color-secondary-hover);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: var(--space-32);
}

.quick-stats {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-20);
}

.stat-card {
    background: var(--color-surface);
    padding: var(--space-20);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-card-border);
    transition: all var(--duration-normal) var(--ease-standard);
    display: flex;
    align-items: center;
    gap: var(--space-16);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--color-primary);
    transform: scaleY(0);
    transition: transform var(--duration-normal) var(--ease-standard);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-card:hover::before {
    transform: scaleY(1);
}

.stat-icon {
    font-size: var(--font-size-4xl);
    opacity: 0.8;
}

.stat-content {
    flex: 1;
}

.stat-number {
    font-family: 'Poppins', var(--font-family-base);
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--space-4);
}

.stat-label {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

.mini-progress {
    width: 100%;
    height: 4px;
    background: var(--color-secondary);
    border-radius: var(--radius-full);
    margin-top: var(--space-8);
    overflow: hidden;
}

.mini-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-hover));
    border-radius: var(--radius-full);
    transition: width var(--duration-normal) var(--ease-standard);
    width: 0%;
}

.today-focus, .recent-achievements {
    background: var(--color-surface);
    padding: var(--space-24);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-card-border);
    box-shadow: var(--shadow-sm);
}

.section-title {
    font-family: 'Poppins', var(--font-family-base);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--space-20);
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.page-title {
    font-family: 'Poppins', var(--font-family-base);
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    margin-bottom: var(--space-24);
    display: flex;
    align-items: center;
    gap: var(--space-12);
}

/* Task Cards */
.task-card {
    background: var(--color-surface);
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-lg);
    padding: var(--space-20);
    margin-bottom: var(--space-16);
    transition: all var(--duration-normal) var(--ease-standard);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.task-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 6px;
    height: 100%;
    background: var(--color-primary);
    transform: scaleY(0);
    transition: transform var(--duration-normal) var(--ease-standard);
}

.task-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.task-card:hover::before {
    transform: scaleY(1);
}

.task-card.completed {
    opacity: 0.7;
    background: var(--color-bg-3);
}

.task-card.completed .task-title {
    text-decoration: line-through;
    color: var(--color-text-secondary);
}

.task-card.high-priority::before {
    background: #e74c3c;
}

.task-card.medium-priority::before {
    background: #f39c12;
}

.task-card.low-priority::before {
    background: #27ae60;
}

.task-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-12);
    gap: var(--space-16);
}

.task-title {
    font-family: 'Poppins', var(--font-family-base);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin: 0;
    color: var(--color-text);
    flex: 1;
}

.task-priority {
    padding: var(--space-4) var(--space-12);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.task-priority.high {
    background: rgba(231, 76, 60, 0.15);
    color: #e74c3c;
    border: 1px solid rgba(231, 76, 60, 0.3);
}

.task-priority.medium {
    background: rgba(243, 156, 18, 0.15);
    color: #f39c12;
    border: 1px solid rgba(243, 156, 18, 0.3);
}

.task-priority.low {
    background: rgba(39, 174, 96, 0.15);
    color: #27ae60;
    border: 1px solid rgba(39, 174, 96, 0.3);
}

.task-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-16);
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

.task-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    flex-wrap: wrap;
    gap: var(--space-12);
}

.task-info {
    display: flex;
    gap: var(--space-16);
    align-items: center;
}

.task-deadline, .task-time, .task-xp {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.task-xp {
    background: var(--color-bg-6);
    padding: var(--space-4) var(--space-8);
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
}

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

.task-action-btn {
    background: var(--color-secondary);
    border: none;
    padding: var(--space-8) var(--space-10);
    border-radius: var(--radius-base);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-standard);
    font-size: var(--font-size-md);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
}

.task-action-btn:hover {
    background: var(--color-secondary-hover);
    transform: scale(1.05);
}

.task-action-btn.complete-btn:hover {
    background: rgba(39, 174, 96, 0.2);
    color: #27ae60;
}

.task-action-btn.edit-btn:hover {
    background: rgba(52, 152, 219, 0.2);
    color: #3498db;
}

.task-action-btn.delete-btn:hover {
    background: rgba(231, 76, 60, 0.2);
    color: #e74c3c;
}

/* Tasks View */
.tasks-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-32);
    flex-wrap: wrap;
    gap: var(--space-20);
}

.tasks-controls {
    display: flex;
    gap: var(--space-12);
    align-items: center;
    flex-wrap: wrap;
}

.filter-select {
    min-width: 150px;
}

.add-task-btn {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
    border: none;
    color: var(--color-btn-primary-text);
    padding: var(--space-12) var(--space-20);
    border-radius: var(--radius-base);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-standard);
    display: flex;
    align-items: center;
    gap: var(--space-8);
    box-shadow: var(--shadow-sm);
}

.add-task-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--color-primary-hover), var(--color-primary-active));
}

.btn-icon {
    font-size: var(--font-size-lg);
}

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

/* Achievements View */
.achievements-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-32);
}

.achievement-stats {
    background: var(--color-bg-6);
    padding: var(--space-12) var(--space-20);
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
}

.badges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-20);
    margin-bottom: var(--space-32);
}

.badge-card {
    background: var(--color-surface);
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-lg);
    padding: var(--space-24);
    text-align: center;
    transition: all var(--duration-normal) var(--ease-standard);
    position: relative;
    overflow: hidden;
}

.badge-card.unlocked {
    background: var(--color-bg-3);
    border-color: var(--color-success);
    box-shadow: 0 0 20px rgba(39, 174, 96, 0.2);
}

.badge-card.locked {
    opacity: 0.5;
    filter: grayscale(1);
}

.badge-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.badge-icon {
    font-size: 4rem;
    margin-bottom: var(--space-16);
    display: block;
}

.badge-name {
    font-family: 'Poppins', var(--font-family-base);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--space-8);
}

.badge-description {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-12);
}

.badge-unlock-date {
    font-size: var(--font-size-xs);
    color: var(--color-success);
    font-weight: var(--font-weight-medium);
}

/* Level Progression */
.level-progression {
    background: var(--color-surface);
    padding: var(--space-24);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-card-border);
    box-shadow: var(--shadow-sm);
}

.level-track {
    position: relative;
    padding: var(--space-24) 0;
}

.level-milestones {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.level-milestones::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-secondary);
    border-radius: var(--radius-full);
    z-index: 1;
}

.level-milestone {
    background: var(--color-surface);
    border: 3px solid var(--color-secondary);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-secondary);
    position: relative;
    z-index: 2;
    transition: all var(--duration-normal) var(--ease-standard);
}

.level-milestone.achieved {
    border-color: var(--color-success);
    background: var(--color-success);
    color: white;
    box-shadow: 0 0 15px rgba(39, 174, 96, 0.4);
}

.level-milestone.current {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: white;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); box-shadow: 0 0 20px rgba(33, 128, 141, 0.6); }
}

/* Analytics View - Improved Layout */
.analytics-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-32);
}

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

.chart-title {
    font-family: 'Poppins', var(--font-family-base);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--space-20);
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.productivity-stats {
    grid-column: 1 / -1;
}

.productivity-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-16);
}

.productivity-item {
    background: var(--color-bg-2);
    padding: var(--space-16);
    border-radius: var(--radius-base);
    text-align: center;
    border: 1px solid var(--color-card-border-inner);
}

.productivity-value {
    font-family: 'Poppins', var(--font-family-base);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    display: block;
}

.productivity-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-top: var(--space-4);
}

/* Enhanced Streak Calendar */
.streak-calendar-container {
    grid-column: 1 / -1;
    background: var(--color-surface);
    padding: var(--space-24);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-card-border);
    box-shadow: var(--shadow-sm);
}

.calendar-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-20);
}

.calendar-header {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    font-family: 'Poppins', var(--font-family-base);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-lg);
    color: var(--color-text);
}

.calendar-nav-btn {
    background: var(--color-secondary);
    border: none;
    padding: var(--space-8) var(--space-12);
    border-radius: var(--radius-base);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-standard);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
}

.calendar-nav-btn:hover {
    background: var(--color-secondary-hover);
    transform: scale(1.05);
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.calendar-weekday {
    text-align: center;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    padding: var(--space-8);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: var(--space-4);
    margin-bottom: var(--space-16);
}

.calendar-day {
    aspect-ratio: 1;
    background: var(--color-secondary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    transition: all var(--duration-fast) var(--ease-standard);
    cursor: pointer;
    position: relative;
    min-height: 40px;
}

.calendar-day:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-sm);
}

.calendar-day.today {
    background: var(--color-primary);
    color: white;
    font-weight: var(--font-weight-bold);
    box-shadow: 0 0 10px rgba(33, 128, 141, 0.4);
}

.calendar-day.streak {
    background: linear-gradient(135deg, #ff6b6b, #ee5a24);
    color: white;
    font-weight: var(--font-weight-bold);
}

.calendar-day.other-month {
    opacity: 0.3;
    color: var(--color-text-secondary);
}

.calendar-legend {
    display: flex;
    justify-content: center;
    gap: var(--space-20);
    align-items: center;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.legend-color {
    width: 16px;
    height: 16px;
    border-radius: var(--radius-sm);
    background: var(--color-secondary);
}

.legend-color.streak {
    background: linear-gradient(135deg, #ff6b6b, #ee5a24);
}

.legend-color.today {
    background: var(--color-primary);
}

/* Chatbot Styles */
.chatbot {
    position: fixed;
    bottom: var(--space-20);
    left: var(--space-20);
    z-index: 1000;
}

.chatbot-toggle {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: all var(--duration-normal) var(--ease-standard);
    position: relative;
}

.chatbot-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(33, 128, 141, 0.4);
}

.chatbot-icon {
    font-size: var(--font-size-2xl);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

.chat-notification {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 20px;
    height: 20px;
    background: var(--color-error);
    color: white;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    animation: pulse 2s infinite;
}

.chat-notification.show {
    display: flex;
}

.chatbot-window {
    position: absolute;
    bottom: 80px;
    left: 0;
    width: 350px;
    height: 450px;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-card-border);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    transition: all var(--duration-normal) var(--ease-standard);
    transform-origin: bottom left;
}

.chatbot-window.hidden {
    display: none;
}

.chatbot-window.minimized {
    height: 60px;
    overflow: hidden;
}

.chatbot-header {
    background: var(--color-bg-1);
    padding: var(--space-16);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    border-bottom: 1px solid var(--color-card-border-inner);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chatbot-character-info {
    display: flex;
    align-items: center;
    gap: var(--space-12);
}

.chatbot-character-emoji {
    font-size: var(--font-size-2xl);
}

.chatbot-character-details {
    display: flex;
    flex-direction: column;
}

.chatbot-character-name {
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    font-size: var(--font-size-md);
}

.chatbot-status {
    font-size: var(--font-size-xs);
    color: var(--color-success);
    font-weight: var(--font-weight-medium);
}

.chatbot-controls {
    display: flex;
    gap: var(--space-8);
}

.chatbot-control-btn {
    background: var(--color-secondary);
    border: none;
    padding: var(--space-4);
    border-radius: var(--radius-base);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-standard);
    font-size: var(--font-size-sm);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chatbot-control-btn:hover {
    background: var(--color-secondary-hover);
    transform: scale(1.05);
}

.chatbot-messages {
    flex: 1;
    padding: var(--space-16);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-12);
}

.chat-message {
    display: flex;
    gap: var(--space-8);
    animation: messageSlideIn 0.3s ease-out;
}

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

.chat-message.user {
    flex-direction: row-reverse;
}

.chat-message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    flex-shrink: 0;
}

.chat-message.bot .chat-message-avatar {
    background: var(--color-bg-1);
}

.chat-message.user .chat-message-avatar {
    background: var(--color-primary);
    color: white;
}

.chat-message-content {
    background: var(--color-bg-2);
    padding: var(--space-10) var(--space-12);
    border-radius: var(--radius-lg);
    max-width: 70%;
    font-size: var(--font-size-sm);
    line-height: 1.5;
    color: var(--color-text);
}

.chat-message.user .chat-message-content {
    background: var(--color-primary);
    color: white;
}

.chatbot-input-container {
    display: flex;
    gap: var(--space-8);
    padding: var(--space-16);
    border-top: 1px solid var(--color-card-border-inner);
}

.chatbot-input {
    flex: 1;
    padding: var(--space-8) var(--space-12);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    background: var(--color-surface);
    color: var(--color-text);
    transition: border-color var(--duration-fast) var(--ease-standard);
}

.chatbot-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.chatbot-input::placeholder {
    color: var(--color-text-secondary);
}

.chatbot-send-btn {
    background: var(--color-primary);
    color: white;
    border: none;
    padding: var(--space-8) var(--space-12);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-standard);
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
}

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

.chatbot-send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.typing-indicator {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-10) var(--space-16);
    background: var(--color-bg-2);
    border-radius: var(--radius-lg);
    width: fit-content;
    margin-left: 40px;
}

.typing-indicator.hidden {
    display: none;
}

.typing-dot {
    width: 8px;
    height: 8px;
    background: var(--color-text-secondary);
    border-radius: 50%;
    animation: typingBounce 1.4s infinite ease-in-out both;
}

.typing-dot:nth-child(1) { animation-delay: -0.32s; }
.typing-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes typingBounce {
    0%, 80%, 100% {
        transform: scale(0);
    }
    40% {
        transform: scale(1);
    }
}

/* Character Selection Modal */
.character-modal-content {
    max-width: 600px;
}

.character-selection {
    padding: var(--space-24);
}

.characters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-16);
}

.character-card {
    background: var(--color-surface);
    border: 2px solid var(--color-card-border);
    border-radius: var(--radius-lg);
    padding: var(--space-20);
    text-align: center;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-standard);
    position: relative;
}

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

.character-card.selected {
    border-color: var(--color-primary);
    background: var(--color-bg-1);
    box-shadow: 0 0 15px rgba(33, 128, 141, 0.3);
}

.character-card.selected::before {
    content: '✓';
    position: absolute;
    top: var(--space-8);
    right: var(--space-8);
    background: var(--color-primary);
    color: white;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
}

.character-emoji {
    font-size: 3rem;
    margin-bottom: var(--space-12);
    display: block;
}

.character-name {
    font-family: 'Poppins', var(--font-family-base);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--space-8);
}

.character-personality {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    font-style: italic;
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-16);
}

.modal.hidden {
    display: none;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.modal-content {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 1001;
    animation: modalSlideUp 0.3s ease-out;
}

@keyframes modalSlideUp {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

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

.modal-title {
    font-family: 'Poppins', var(--font-family-base);
    margin: 0;
    color: var(--color-text);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-3xl);
    cursor: pointer;
    color: var(--color-text-secondary);
    padding: var(--space-4);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-base);
    transition: all var(--duration-fast) var(--ease-standard);
}

.modal-close:hover {
    background: var(--color-secondary);
    transform: rotate(90deg);
}

/* Task Form */
.task-form {
    padding: var(--space-24);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
}

.xp-preview {
    background: var(--color-bg-6);
    padding: var(--space-16);
    border-radius: var(--radius-base);
    text-align: center;
    margin: var(--space-16) 0;
    border: 1px solid var(--color-card-border-inner);
}

.xp-preview-text {
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
}

.form-actions {
    display: flex;
    gap: var(--space-12);
    justify-content: flex-end;
    margin-top: var(--space-24);
}

/* Special Modals */
.level-up-content, .achievement-content {
    text-align: center;
    max-width: 400px;
}

.level-up-animation, .achievement-animation {
    padding: var(--space-32);
}

.level-up-icon, .achievement-glow {
    font-size: 5rem;
    margin-bottom: var(--space-24);
    animation: bounce 1s ease-in-out infinite alternate;
}

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

.achievement-glow {
    position: relative;
    display: inline-block;
}

.achievement-glow::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.3), transparent);
    border-radius: 50%;
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from { transform: scale(0.8); opacity: 0.5; }
    to { transform: scale(1.2); opacity: 0.8; }
}

.achievement-badge {
    font-size: 5rem;
    position: relative;
    z-index: 1;
}

.level-up-title, .achievement-title {
    font-family: 'Poppins', var(--font-family-base);
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    margin-bottom: var(--space-16);
}

.level-up-info, .achievement-info {
    margin-bottom: var(--space-24);
}

.new-level {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--space-8);
}

.new-rank, .achievement-name {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--space-8);
}

.achievement-description {
    color: var(--color-text-secondary);
    font-style: italic;
}

.level-up-rewards {
    background: var(--color-bg-3);
    padding: var(--space-16);
    border-radius: var(--radius-base);
    margin: var(--space-16) 0;
}

/* Floating Action Button */
.fab {
    position: fixed;
    bottom: var(--space-32);
    right: var(--space-32);
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
    color: var(--color-btn-primary-text);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: all var(--duration-normal) var(--ease-standard);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
}

.fab:hover {
    transform: scale(1.1) rotate(90deg);
    box-shadow: 0 8px 25px rgba(33, 128, 141, 0.4);
}

.fab-icon {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
}

/* Notifications */
.notification-container {
    position: fixed;
    top: var(--space-24);
    right: var(--space-24);
    z-index: 1100;
    display: flex;
    flex-direction: column;
    gap: var(--space-12);
}

.notification {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-base);
    padding: var(--space-16);
    box-shadow: var(--shadow-md);
    min-width: 300px;
    transform: translateX(100%);
    transition: transform var(--duration-normal) var(--ease-standard);
    display: flex;
    align-items: center;
    gap: var(--space-12);
}

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

.notification.success {
    border-left: 4px solid var(--color-success);
    background: var(--color-bg-3);
}

.notification.error {
    border-left: 4px solid var(--color-error);
    background: var(--color-bg-4);
}

.notification.warning {
    border-left: 4px solid var(--color-warning);
    background: var(--color-bg-2);
}

.notification.info {
    border-left: 4px solid var(--color-info);
    background: var(--color-bg-1);
}

/* Confetti Animation */
.confetti-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    overflow: hidden;
}

.confetti-piece {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    animation: confettiFall 3s linear forwards;
}

@keyframes confettiFall {
    0% {
        transform: translateY(-100vh) rotateZ(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) rotateZ(720deg);
        opacity: 0;
    }
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--space-32);
    color: var(--color-text-secondary);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--space-16);
    opacity: 0.5;
}

.empty-state-message {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-8);
    color: var(--color-text);
}

.empty-state-description {
    font-size: var(--font-size-sm);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .analytics-grid {
        grid-template-columns: 1fr;
    }
    
    .chatbot-window {
        width: 320px;
        height: 400px;
    }
}

@media (max-width: 768px) {
    .header-content {
        grid-template-columns: 1fr;
        gap: var(--space-16);
        text-align: center;
    }
    
    .user-stats {
        flex-direction: column;
        gap: var(--space-16);
    }
    
    .nav-tabs {
        justify-content: center;
    }
    
    .nav-tab {
        padding: var(--space-12) var(--space-16);
        font-size: var(--font-size-sm);
    }
    
    .nav-text {
        display: none;
    }
    
    .quick-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tasks-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .tasks-controls {
        justify-content: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .badges-grid {
        grid-template-columns: 1fr;
    }
    
    .fab {
        bottom: var(--space-20);
        right: var(--space-20);
        width: 56px;
        height: 56px;
    }
    
    .chatbot {
        bottom: var(--space-16);
        left: var(--space-16);
    }
    
    .chatbot-toggle {
        width: 50px;
        height: 50px;
    }
    
    .chatbot-window {
        width: 280px;
        height: 350px;
        max-height: 70vh;
    }
    
    .notification-container {
        right: var(--space-16);
        left: var(--space-16);
    }
    
    .notification {
        min-width: auto;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: var(--space-20) var(--space-12);
    }
    
    .quick-stats {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        flex-direction: column;
        text-align: center;
        gap: var(--space-12);
    }
    
    .characters-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Theme-specific adjustments */
@media (prefers-color-scheme: dark) {
    .theme-icon::before {
        content: "☀️";
    }
}

[data-color-scheme="dark"] .theme-icon::before {
    content: "☀️";
}

[data-color-scheme="light"] .theme-icon::before {
    content: "🌙";
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-secondary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary-hover);
}

/* Loading animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-secondary);
    border-radius: 50%;
    border-top-color: var(--color-primary);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}